drivers/net/tg3.c

   1 /*
   2  * tg3.c: Broadcom Tigon3 ethernet driver.
   3  *
   4  * Copyright (C) 2001, 2002, 2003, 2004 David S. Miller (davem@redhat.com)
   5  * Copyright (C) 2001, 2002, 2003 Jeff Garzik (jgarzik@pobox.com)
   6  * Copyright (C) 2004 Sun Microsystems Inc.
   7  * Copyright (C) 2005-2010 Broadcom Corporation.
   8  *
   9  * Firmware is:
  10  *      Derived from proprietary unpublished source code,
  11  *      Copyright (C) 2000-2003 Broadcom Corporation.
  12  *
  13  *      Permission is hereby granted for the distribution of this firmware
  14  *      data in hexadecimal or equivalent format, provided this copyright
  15  *      notice is accompanying it.
  16  */
  17
  18
  19 #include <linux/module.h>
  20 #include <linux/moduleparam.h>
  21 #include <linux/stringify.h>
  22 #include <linux/kernel.h>
  23 #include <linux/types.h>
  24 #include <linux/compiler.h>
  25 #include <linux/slab.h>
  26 #include <linux/delay.h>
  27 #include <linux/in.h>
  28 #include <linux/init.h>
  29 #include <linux/ioport.h>
  30 #include <linux/pci.h>
  31 #include <linux/netdevice.h>
  32 #include <linux/etherdevice.h>
  33 #include <linux/skbuff.h>
  34 #include <linux/ethtool.h>
  35 #include <linux/mii.h>
  36 #include <linux/phy.h>
  37 #include <linux/brcmphy.h>
  38 #include <linux/if_vlan.h>
  39 #include <linux/ip.h>
  40 #include <linux/tcp.h>
  41 #include <linux/workqueue.h>
  42 #include <linux/prefetch.h>
  43 #include <linux/dma-mapping.h>
  44 #include <linux/firmware.h>
  45
  46 #include <net/checksum.h>
  47 #include <net/ip.h>
  48
  49 #include <asm/system.h>
  50 #include <asm/io.h>
  51 #include <asm/byteorder.h>
  52 #include <asm/uaccess.h>
  53
  54 #ifdef CONFIG_SPARC
  55 #include <asm/idprom.h>
  56 #include <asm/prom.h>
  57 #endif
  58
  59 #define BAR_0   0
  60 #define BAR_2   2
  61
  62 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
  63 #define TG3_VLAN_TAG_USED 1
  64 #else
  65 #define TG3_VLAN_TAG_USED 0
  66 #endif
  67
  68 #include "tg3.h"
  69
  70 #define DRV_MODULE_NAME         "tg3"
  71 #define TG3_MAJ_NUM                     3
  72 #define TG3_MIN_NUM                     115
  73 #define DRV_MODULE_VERSION      \
  74         __stringify(TG3_MAJ_NUM) "." __stringify(TG3_MIN_NUM)
  75 #define DRV_MODULE_RELDATE      "October 14, 2010"
  76
  77 #define TG3_DEF_MAC_MODE        0
  78 #define TG3_DEF_RX_MODE         0
  79 #define TG3_DEF_TX_MODE         0
  80 #define TG3_DEF_MSG_ENABLE        \
  81         (NETIF_MSG_DRV          | \
  82          NETIF_MSG_PROBE        | \
  83          NETIF_MSG_LINK         | \
  84          NETIF_MSG_TIMER        | \
  85          NETIF_MSG_IFDOWN       | \
  86          NETIF_MSG_IFUP         | \
  87          NETIF_MSG_RX_ERR       | \
  88          NETIF_MSG_TX_ERR)
  89
  90 /* length of time before we decide the hardware is borked,
  91  * and dev->tx_timeout() should be called to fix the problem
  92  */
  93 #define TG3_TX_TIMEOUT                  (5 * HZ)
  94
  95 /* hardware minimum and maximum for a single frame's data payload */
  96 #define TG3_MIN_MTU                     60
  97 #define TG3_MAX_MTU(tp) \
  98         ((tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) ? 9000 : 1500)
  99
 100 /* These numbers seem to be hard coded in the NIC firmware somehow.
 101  * You can't change the ring sizes, but you can change where you place
 102  * them in the NIC onboard memory.
 103  */
 104 #define TG3_RX_STD_RING_SIZE(tp) \
 105         ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 || \
 106           GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719) ? \
 107          RX_STD_MAX_SIZE_5717 : 512)
 108 #define TG3_DEF_RX_RING_PENDING         200
 109 #define TG3_RX_JMB_RING_SIZE(tp) \
 110         ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 || \
 111           GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719) ? \
 112          1024 : 256)
 113 #define TG3_DEF_RX_JUMBO_RING_PENDING   100
 114 #define TG3_RSS_INDIR_TBL_SIZE          128
 115
 116 /* Do not place this n-ring entries value into the tp struct itself,
 117  * we really want to expose these constants to GCC so that modulo et
 118  * al.  operations are done with shifts and masks instead of with
 119  * hw multiply/modulo instructions.  Another solution would be to
 120  * replace things like '% foo' with '& (foo - 1)'.
 121  */
 122
 123 #define TG3_TX_RING_SIZE                512
 124 #define TG3_DEF_TX_RING_PENDING         (TG3_TX_RING_SIZE - 1)
 125
 126 #define TG3_RX_STD_RING_BYTES(tp) \
 127         (sizeof(struct tg3_rx_buffer_desc) * TG3_RX_STD_RING_SIZE(tp))
 128 #define TG3_RX_JMB_RING_BYTES(tp) \
 129         (sizeof(struct tg3_ext_rx_buffer_desc) * TG3_RX_JMB_RING_SIZE(tp))
 130 #define TG3_RX_RCB_RING_BYTES(tp) \
 131         (sizeof(struct tg3_rx_buffer_desc) * (tp->rx_ret_ring_mask + 1))
 132 #define TG3_TX_RING_BYTES       (sizeof(struct tg3_tx_buffer_desc) * \
 133                                  TG3_TX_RING_SIZE)
 134 #define NEXT_TX(N)              (((N) + 1) & (TG3_TX_RING_SIZE - 1))
 135
 136 #define TG3_RX_DMA_ALIGN                16
 137 #define TG3_RX_HEADROOM                 ALIGN(VLAN_HLEN, TG3_RX_DMA_ALIGN)
 138
 139 #define TG3_DMA_BYTE_ENAB               64
 140
 141 #define TG3_RX_STD_DMA_SZ               1536
 142 #define TG3_RX_JMB_DMA_SZ               9046
 143
 144 #define TG3_RX_DMA_TO_MAP_SZ(x)         ((x) + TG3_DMA_BYTE_ENAB)
 145
 146 #define TG3_RX_STD_MAP_SZ               TG3_RX_DMA_TO_MAP_SZ(TG3_RX_STD_DMA_SZ)
 147 #define TG3_RX_JMB_MAP_SZ               TG3_RX_DMA_TO_MAP_SZ(TG3_RX_JMB_DMA_SZ)
 148
 149 #define TG3_RX_STD_BUFF_RING_SIZE(tp) \
 150         (sizeof(struct ring_info) * TG3_RX_STD_RING_SIZE(tp))
 151
 152 #define TG3_RX_JMB_BUFF_RING_SIZE(tp) \
 153         (sizeof(struct ring_info) * TG3_RX_JMB_RING_SIZE(tp))
 154
 155 /* Due to a hardware bug, the 5701 can only DMA to memory addresses
 156  * that are at least dword aligned when used in PCIX mode.  The driver
 157  * works around this bug by double copying the packet.  This workaround
 158  * is built into the normal double copy length check for efficiency.
 159  *
 160  * However, the double copy is only necessary on those architectures
 161  * where unaligned memory accesses are inefficient.  For those architectures
 162  * where unaligned memory accesses incur little penalty, we can reintegrate
 163  * the 5701 in the normal rx path.  Doing so saves a device structure
 164  * dereference by hardcoding the double copy threshold in place.
 165  */
 166 #define TG3_RX_COPY_THRESHOLD           256
 167 #if NET_IP_ALIGN == 0 || defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
 168         #define TG3_RX_COPY_THRESH(tp)  TG3_RX_COPY_THRESHOLD
 169 #else
 170         #define TG3_RX_COPY_THRESH(tp)  ((tp)->rx_copy_thresh)
 171 #endif
 172
 173 /* minimum number of free TX descriptors required to wake up TX process */
 174 #define TG3_TX_WAKEUP_THRESH(tnapi)             ((tnapi)->tx_pending / 4)
 175
 176 #define TG3_RAW_IP_ALIGN 2
 177
 178 /* number of ETHTOOL_GSTATS u64's */
 179 #define TG3_NUM_STATS           (sizeof(struct tg3_ethtool_stats)/sizeof(u64))
 180
 181 #define TG3_NUM_TEST            6
 182
 183 #define TG3_FW_UPDATE_TIMEOUT_SEC       5
 184
 185 #define FIRMWARE_TG3            "tigon/tg3.bin"
 186 #define FIRMWARE_TG3TSO         "tigon/tg3_tso.bin"
 187 #define FIRMWARE_TG3TSO5        "tigon/tg3_tso5.bin"
 188
 189 static char version[] __devinitdata =
 190         DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")";
 191
 192 MODULE_AUTHOR("David S. Miller (davem@redhat.com) and Jeff Garzik (jgarzik@pobox.com)");
 193 MODULE_DESCRIPTION("Broadcom Tigon3 ethernet driver");
 194 MODULE_LICENSE("GPL");
 195 MODULE_VERSION(DRV_MODULE_VERSION);
 196 MODULE_FIRMWARE(FIRMWARE_TG3);
 197 MODULE_FIRMWARE(FIRMWARE_TG3TSO);
 198 MODULE_FIRMWARE(FIRMWARE_TG3TSO5);
 199
 200 static int tg3_debug = -1;      /* -1 == use TG3_DEF_MSG_ENABLE as value */
 201 module_param(tg3_debug, int, 0);
 202 MODULE_PARM_DESC(tg3_debug, "Tigon3 bitmapped debugging message enable value");
 203
 204 static DEFINE_PCI_DEVICE_TABLE(tg3_pci_tbl) = {
 205         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5700)},
 206         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5701)},
 207         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702)},
 208         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5703)},
 209         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5704)},
 210         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702FE)},
 211         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705)},
 212         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705_2)},
 213         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705M)},
 214         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705M_2)},
 215         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702X)},
 216         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5703X)},
 217         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5704S)},
 218         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702A3)},
 219         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5703A3)},
 220         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5782)},
 221         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5788)},
 222         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5789)},
 223         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5901)},
 224         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5901_2)},
 225         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5704S_2)},
 226         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705F)},
 227         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5721)},
 228         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5722)},
 229         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751)},
 230         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751M)},
 231         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751F)},
 232         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5752)},
 233         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5752M)},
 234         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753)},
 235         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753M)},
 236         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753F)},
 237         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5754)},
 238         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5754M)},
 239         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5755)},
 240         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5755M)},
 241         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5756)},
 242         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5786)},
 243         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5787)},
 244         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5787M)},
 245         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5787F)},
 246         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5714)},
 247         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5714S)},
 248         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5715)},
 249         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5715S)},
 250         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5780)},
 251         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5780S)},
 252         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5781)},
 253         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5906)},
 254         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5906M)},
 255         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5784)},
 256         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5764)},
 257         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5723)},
 258         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5761)},
 259         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5761E)},
 260         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5761S)},
 261         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5761SE)},
 262         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5785_G)},
 263         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5785_F)},
 264         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57780)},
 265         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57760)},
 266         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57790)},
 267         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57788)},
 268         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5717)},
 269         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5718)},
 270         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57781)},
 271         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57785)},
 272         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57761)},
 273         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57765)},
 274         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57791)},
 275         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57795)},
 276         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5719)},
 277         {PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_9DXX)},
 278         {PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_9MXX)},
 279         {PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1000)},
 280         {PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1001)},
 281         {PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1003)},
 282         {PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC9100)},
 283         {PCI_DEVICE(PCI_VENDOR_ID_APPLE, PCI_DEVICE_ID_APPLE_TIGON3)},
 284         {}
 285 };
 286
 287 MODULE_DEVICE_TABLE(pci, tg3_pci_tbl);
 288
 289 static const struct {
 290         const char string[ETH_GSTRING_LEN];
 291 } ethtool_stats_keys[TG3_NUM_STATS] = {
 292         { "rx_octets" },
 293         { "rx_fragments" },
 294         { "rx_ucast_packets" },
 295         { "rx_mcast_packets" },
 296         { "rx_bcast_packets" },
 297         { "rx_fcs_errors" },
 298         { "rx_align_errors" },
 299         { "rx_xon_pause_rcvd" },
 300         { "rx_xoff_pause_rcvd" },
 301         { "rx_mac_ctrl_rcvd" },
 302         { "rx_xoff_entered" },
 303         { "rx_frame_too_long_errors" },
 304         { "rx_jabbers" },
 305         { "rx_undersize_packets" },
 306         { "rx_in_length_errors" },
 307         { "rx_out_length_errors" },
 308         { "rx_64_or_less_octet_packets" },
 309         { "rx_65_to_127_octet_packets" },
 310         { "rx_128_to_255_octet_packets" },
 311         { "rx_256_to_511_octet_packets" },
 312         { "rx_512_to_1023_octet_packets" },
 313         { "rx_1024_to_1522_octet_packets" },
 314         { "rx_1523_to_2047_octet_packets" },
 315         { "rx_2048_to_4095_octet_packets" },
 316         { "rx_4096_to_8191_octet_packets" },
 317         { "rx_8192_to_9022_octet_packets" },
 318
 319         { "tx_octets" },
 320         { "tx_collisions" },
 321
 322         { "tx_xon_sent" },
 323         { "tx_xoff_sent" },
 324         { "tx_flow_control" },
 325         { "tx_mac_errors" },
 326         { "tx_single_collisions" },
 327         { "tx_mult_collisions" },
 328         { "tx_deferred" },
 329         { "tx_excessive_collisions" },
 330         { "tx_late_collisions" },
 331         { "tx_collide_2times" },
 332         { "tx_collide_3times" },
 333         { "tx_collide_4times" },
 334         { "tx_collide_5times" },
 335         { "tx_collide_6times" },
 336         { "tx_collide_7times" },
 337         { "tx_collide_8times" },
 338         { "tx_collide_9times" },
 339         { "tx_collide_10times" },
 340         { "tx_collide_11times" },
 341         { "tx_collide_12times" },
 342         { "tx_collide_13times" },
 343         { "tx_collide_14times" },
 344         { "tx_collide_15times" },
 345         { "tx_ucast_packets" },
 346         { "tx_mcast_packets" },
 347         { "tx_bcast_packets" },
 348         { "tx_carrier_sense_errors" },
 349         { "tx_discards" },
 350         { "tx_errors" },
 351
 352         { "dma_writeq_full" },
 353         { "dma_write_prioq_full" },
 354         { "rxbds_empty" },
 355         { "rx_discards" },
 356         { "rx_errors" },
 357         { "rx_threshold_hit" },
 358
 359         { "dma_readq_full" },
 360         { "dma_read_prioq_full" },
 361         { "tx_comp_queue_full" },
 362
 363         { "ring_set_send_prod_index" },
 364         { "ring_status_update" },
 365         { "nic_irqs" },
 366         { "nic_avoided_irqs" },
 367         { "nic_tx_threshold_hit" }
 368 };
 369
 370 static const struct {
 371         const char string[ETH_GSTRING_LEN];
 372 } ethtool_test_keys[TG3_NUM_TEST] = {
 373         { "nvram test     (online) " },
 374         { "link test      (online) " },
 375         { "register test  (offline)" },
 376         { "memory test    (offline)" },
 377         { "loopback test  (offline)" },
 378         { "interrupt test (offline)" },
 379 };
 380
 381 static void tg3_write32(struct tg3 *tp, u32 off, u32 val)
 382 {
 383         writel(val, tp->regs + off);
 384 }
 385
 386 static u32 tg3_read32(struct tg3 *tp, u32 off)
 387 {
 388         return readl(tp->regs + off);
 389 }
 390
 391 static void tg3_ape_write32(struct tg3 *tp, u32 off, u32 val)
 392 {
 393         writel(val, tp->aperegs + off);
 394 }
 395
 396 static u32 tg3_ape_read32(struct tg3 *tp, u32 off)
 397 {
 398         return readl(tp->aperegs + off);
 399 }
 400
 401 static void tg3_write_indirect_reg32(struct tg3 *tp, u32 off, u32 val)
 402 {
 403         unsigned long flags;
 404
 405         spin_lock_irqsave(&tp->indirect_lock, flags);
 406         pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off);
 407         pci_write_config_dword(tp->pdev, TG3PCI_REG_DATA, val);
 408         spin_unlock_irqrestore(&tp->indirect_lock, flags);
 409 }
 410
 411 static void tg3_write_flush_reg32(struct tg3 *tp, u32 off, u32 val)
 412 {
 413         writel(val, tp->regs + off);
 414         readl(tp->regs + off);
 415 }
 416
 417 static u32 tg3_read_indirect_reg32(struct tg3 *tp, u32 off)
 418 {
 419         unsigned long flags;
 420         u32 val;
 421
 422         spin_lock_irqsave(&tp->indirect_lock, flags);
 423         pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off);
 424         pci_read_config_dword(tp->pdev, TG3PCI_REG_DATA, &val);
 425         spin_unlock_irqrestore(&tp->indirect_lock, flags);
 426         return val;
 427 }
 428
 429 static void tg3_write_indirect_mbox(struct tg3 *tp, u32 off, u32 val)
 430 {
 431         unsigned long flags;
 432
 433         if (off == (MAILBOX_RCVRET_CON_IDX_0 + TG3_64BIT_REG_LOW)) {
 434                 pci_write_config_dword(tp->pdev, TG3PCI_RCV_RET_RING_CON_IDX +
 435                                        TG3_64BIT_REG_LOW, val);
 436                 return;
 437         }
 438         if (off == TG3_RX_STD_PROD_IDX_REG) {
 439                 pci_write_config_dword(tp->pdev, TG3PCI_STD_RING_PROD_IDX +
 440                                        TG3_64BIT_REG_LOW, val);
 441                 return;
 442         }
 443
 444         spin_lock_irqsave(&tp->indirect_lock, flags);
 445         pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off + 0x5600);
 446         pci_write_config_dword(tp->pdev, TG3PCI_REG_DATA, val);
 447         spin_unlock_irqrestore(&tp->indirect_lock, flags);
 448
 449         /* In indirect mode when disabling interrupts, we also need
 450          * to clear the interrupt bit in the GRC local ctrl register.
 451          */
 452         if ((off == (MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW)) &&
 453             (val == 0x1)) {
 454                 pci_write_config_dword(tp->pdev, TG3PCI_MISC_LOCAL_CTRL,
 455                                        tp->grc_local_ctrl|GRC_LCLCTRL_CLEARINT);
 456         }
 457 }
 458
 459 static u32 tg3_read_indirect_mbox(struct tg3 *tp, u32 off)
 460 {
 461         unsigned long flags;
 462         u32 val;
 463
 464         spin_lock_irqsave(&tp->indirect_lock, flags);
 465         pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off + 0x5600);
 466         pci_read_config_dword(tp->pdev, TG3PCI_REG_DATA, &val);
 467         spin_unlock_irqrestore(&tp->indirect_lock, flags);
 468         return val;
 469 }
 470
 471 /* usec_wait specifies the wait time in usec when writing to certain registers
 472  * where it is unsafe to read back the register without some delay.
 473  * GRC_LOCAL_CTRL is one example if the GPIOs are toggled to switch power.
 474  * TG3PCI_CLOCK_CTRL is another example if the clock frequencies are changed.
 475  */
 476 static void _tw32_flush(struct tg3 *tp, u32 off, u32 val, u32 usec_wait)
 477 {
 478         if ((tp->tg3_flags & TG3_FLAG_PCIX_TARGET_HWBUG) ||
 479             (tp->tg3_flags2 & TG3_FLG2_ICH_WORKAROUND))
 480                 /* Non-posted methods */
 481                 tp->write32(tp, off, val);
 482         else {
 483                 /* Posted method */
 484                 tg3_write32(tp, off, val);
 485                 if (usec_wait)
 486                         udelay(usec_wait);
 487                 tp->read32(tp, off);
 488         }
 489         /* Wait again after the read for the posted method to guarantee that
 490          * the wait time is met.
 491          */
 492         if (usec_wait)
 493                 udelay(usec_wait);
 494 }
 495
 496 static inline void tw32_mailbox_flush(struct tg3 *tp, u32 off, u32 val)
 497 {
 498         tp->write32_mbox(tp, off, val);
 499         if (!(tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER) &&
 500             !(tp->tg3_flags2 & TG3_FLG2_ICH_WORKAROUND))
 501                 tp->read32_mbox(tp, off);
 502 }
 503
 504 static void tg3_write32_tx_mbox(struct tg3 *tp, u32 off, u32 val)
 505 {
 506         void __iomem *mbox = tp->regs + off;
 507         writel(val, mbox);
 508         if (tp->tg3_flags & TG3_FLAG_TXD_MBOX_HWBUG)
 509                 writel(val, mbox);
 510         if (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)
 511                 readl(mbox);
 512 }
 513
 514 static u32 tg3_read32_mbox_5906(struct tg3 *tp, u32 off)
 515 {
 516         return readl(tp->regs + off + GRCMBOX_BASE);
 517 }
 518
 519 static void tg3_write32_mbox_5906(struct tg3 *tp, u32 off, u32 val)
 520 {
 521         writel(val, tp->regs + off + GRCMBOX_BASE);
 522 }
 523
 524 #define tw32_mailbox(reg, val)          tp->write32_mbox(tp, reg, val)
 525 #define tw32_mailbox_f(reg, val)        tw32_mailbox_flush(tp, (reg), (val))
 526 #define tw32_rx_mbox(reg, val)          tp->write32_rx_mbox(tp, reg, val)
 527 #define tw32_tx_mbox(reg, val)          tp->write32_tx_mbox(tp, reg, val)
 528 #define tr32_mailbox(reg)               tp->read32_mbox(tp, reg)
 529
 530 #define tw32(reg, val)                  tp->write32(tp, reg, val)
 531 #define tw32_f(reg, val)                _tw32_flush(tp, (reg), (val), 0)
 532 #define tw32_wait_f(reg, val, us)       _tw32_flush(tp, (reg), (val), (us))
 533 #define tr32(reg)                       tp->read32(tp, reg)
 534
 535 static void tg3_write_mem(struct tg3 *tp, u32 off, u32 val)
 536 {
 537         unsigned long flags;
 538
 539         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) &&
 540             (off >= NIC_SRAM_STATS_BLK) && (off < NIC_SRAM_TX_BUFFER_DESC))
 541                 return;
 542
 543         spin_lock_irqsave(&tp->indirect_lock, flags);
 544         if (tp->tg3_flags & TG3_FLAG_SRAM_USE_CONFIG) {
 545                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, off);
 546                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_DATA, val);
 547
 548                 /* Always leave this as zero. */
 549                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, 0);
 550         } else {
 551                 tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, off);
 552                 tw32_f(TG3PCI_MEM_WIN_DATA, val);
 553
 554                 /* Always leave this as zero. */
 555                 tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, 0);
 556         }
 557         spin_unlock_irqrestore(&tp->indirect_lock, flags);
 558 }
 559
 560 static void tg3_read_mem(struct tg3 *tp, u32 off, u32 *val)
 561 {
 562         unsigned long flags;
 563
 564         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) &&
 565             (off >= NIC_SRAM_STATS_BLK) && (off < NIC_SRAM_TX_BUFFER_DESC)) {
 566                 *val = 0;
 567                 return;
 568         }
 569
 570         spin_lock_irqsave(&tp->indirect_lock, flags);
 571         if (tp->tg3_flags & TG3_FLAG_SRAM_USE_CONFIG) {
 572                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, off);
 573                 pci_read_config_dword(tp->pdev, TG3PCI_MEM_WIN_DATA, val);
 574
 575                 /* Always leave this as zero. */
 576                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, 0);
 577         } else {
 578                 tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, off);
 579                 *val = tr32(TG3PCI_MEM_WIN_DATA);
 580
 581                 /* Always leave this as zero. */
 582                 tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, 0);
 583         }
 584         spin_unlock_irqrestore(&tp->indirect_lock, flags);
 585 }
 586
 587 static void tg3_ape_lock_init(struct tg3 *tp)
 588 {
 589         int i;
 590         u32 regbase;
 591
 592         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761)
 593                 regbase = TG3_APE_LOCK_GRANT;
 594         else
 595                 regbase = TG3_APE_PER_LOCK_GRANT;
 596
 597         /* Make sure the driver hasn't any stale locks. */
 598         for (i = 0; i < 8; i++)
 599                 tg3_ape_write32(tp, regbase + 4 * i, APE_LOCK_GRANT_DRIVER);
 600 }
 601
 602 static int tg3_ape_lock(struct tg3 *tp, int locknum)
 603 {
 604         int i, off;
 605         int ret = 0;
 606         u32 status, req, gnt;
 607
 608         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE))
 609                 return 0;
 610
 611         switch (locknum) {
 612         case TG3_APE_LOCK_GRC:
 613         case TG3_APE_LOCK_MEM:
 614                 break;
 615         default:
 616                 return -EINVAL;
 617         }
 618
 619         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761) {
 620                 req = TG3_APE_LOCK_REQ;
 621                 gnt = TG3_APE_LOCK_GRANT;
 622         } else {
 623                 req = TG3_APE_PER_LOCK_REQ;
 624                 gnt = TG3_APE_PER_LOCK_GRANT;
 625         }
 626
 627         off = 4 * locknum;
 628
 629         tg3_ape_write32(tp, req + off, APE_LOCK_REQ_DRIVER);
 630
 631         /* Wait for up to 1 millisecond to acquire lock. */
 632         for (i = 0; i < 100; i++) {
 633                 status = tg3_ape_read32(tp, gnt + off);
 634                 if (status == APE_LOCK_GRANT_DRIVER)
 635                         break;
 636                 udelay(10);
 637         }
 638
 639         if (status != APE_LOCK_GRANT_DRIVER) {
 640                 /* Revoke the lock request. */
 641                 tg3_ape_write32(tp, gnt + off,
 642                                 APE_LOCK_GRANT_DRIVER);
 643
 644                 ret = -EBUSY;
 645         }
 646
 647         return ret;
 648 }
 649
 650 static void tg3_ape_unlock(struct tg3 *tp, int locknum)
 651 {
 652         u32 gnt;
 653
 654         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE))
 655                 return;
 656
 657         switch (locknum) {
 658         case TG3_APE_LOCK_GRC:
 659         case TG3_APE_LOCK_MEM:
 660                 break;
 661         default:
 662                 return;
 663         }
 664
 665         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761)
 666                 gnt = TG3_APE_LOCK_GRANT;
 667         else
 668                 gnt = TG3_APE_PER_LOCK_GRANT;
 669
 670         tg3_ape_write32(tp, gnt + 4 * locknum, APE_LOCK_GRANT_DRIVER);
 671 }
 672
 673 static void tg3_disable_ints(struct tg3 *tp)
 674 {
 675         int i;
 676
 677         tw32(TG3PCI_MISC_HOST_CTRL,
 678              (tp->misc_host_ctrl | MISC_HOST_CTRL_MASK_PCI_INT));
 679         for (i = 0; i < tp->irq_max; i++)
 680                 tw32_mailbox_f(tp->napi[i].int_mbox, 0x00000001);
 681 }
 682
 683 static void tg3_enable_ints(struct tg3 *tp)
 684 {
 685         int i;
 686
 687         tp->irq_sync = 0;
 688         wmb();
 689
 690         tw32(TG3PCI_MISC_HOST_CTRL,
 691              (tp->misc_host_ctrl & ~MISC_HOST_CTRL_MASK_PCI_INT));
 692
 693         tp->coal_now = tp->coalesce_mode | HOSTCC_MODE_ENABLE;
 694         for (i = 0; i < tp->irq_cnt; i++) {
 695                 struct tg3_napi *tnapi = &tp->napi[i];
 696
 697                 tw32_mailbox_f(tnapi->int_mbox, tnapi->last_tag << 24);
 698                 if (tp->tg3_flags2 & TG3_FLG2_1SHOT_MSI)
 699                         tw32_mailbox_f(tnapi->int_mbox, tnapi->last_tag << 24);
 700
 701                 tp->coal_now |= tnapi->coal_now;
 702         }
 703
 704         /* Force an initial interrupt */
 705         if (!(tp->tg3_flags & TG3_FLAG_TAGGED_STATUS) &&
 706             (tp->napi[0].hw_status->status & SD_STATUS_UPDATED))
 707                 tw32(GRC_LOCAL_CTRL, tp->grc_local_ctrl | GRC_LCLCTRL_SETINT);
 708         else
 709                 tw32(HOSTCC_MODE, tp->coal_now);
 710
 711         tp->coal_now &= ~(tp->napi[0].coal_now | tp->napi[1].coal_now);
 712 }
 713
 714 static inline unsigned int tg3_has_work(struct tg3_napi *tnapi)
 715 {
 716         struct tg3 *tp = tnapi->tp;
 717         struct tg3_hw_status *sblk = tnapi->hw_status;
 718         unsigned int work_exists = 0;
 719
 720         /* check for phy events */
 721         if (!(tp->tg3_flags &
 722               (TG3_FLAG_USE_LINKCHG_REG |
 723                TG3_FLAG_POLL_SERDES))) {
 724                 if (sblk->status & SD_STATUS_LINK_CHG)
 725                         work_exists = 1;
 726         }
 727         /* check for RX/TX work to do */
 728         if (sblk->idx[0].tx_consumer != tnapi->tx_cons ||
 729             *(tnapi->rx_rcb_prod_idx) != tnapi->rx_rcb_ptr)
 730                 work_exists = 1;
 731
 732         return work_exists;
 733 }
 734
 735 /* tg3_int_reenable
 736  *  similar to tg3_enable_ints, but it accurately determines whether there
 737  *  is new work pending and can return without flushing the PIO write
 738  *  which reenables interrupts
 739  */
 740 static void tg3_int_reenable(struct tg3_napi *tnapi)
 741 {
 742         struct tg3 *tp = tnapi->tp;
 743
 744         tw32_mailbox(tnapi->int_mbox, tnapi->last_tag << 24);
 745         mmiowb();
 746
 747         /* When doing tagged status, this work check is unnecessary.
 748          * The last_tag we write above tells the chip which piece of
 749          * work we've completed.
 750          */
 751         if (!(tp->tg3_flags & TG3_FLAG_TAGGED_STATUS) &&
 752             tg3_has_work(tnapi))
 753                 tw32(HOSTCC_MODE, tp->coalesce_mode |
 754                      HOSTCC_MODE_ENABLE | tnapi->coal_now);
 755 }
 756
 757 static void tg3_switch_clocks(struct tg3 *tp)
 758 {
 759         u32 clock_ctrl;
 760         u32 orig_clock_ctrl;
 761
 762         if ((tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) ||
 763             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
 764                 return;
 765
 766         clock_ctrl = tr32(TG3PCI_CLOCK_CTRL);
 767
 768         orig_clock_ctrl = clock_ctrl;
 769         clock_ctrl &= (CLOCK_CTRL_FORCE_CLKRUN |
 770                        CLOCK_CTRL_CLKRUN_OENABLE |
 771                        0x1f);
 772         tp->pci_clock_ctrl = clock_ctrl;
 773
 774         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
 775                 if (orig_clock_ctrl & CLOCK_CTRL_625_CORE) {
 776                         tw32_wait_f(TG3PCI_CLOCK_CTRL,
 777                                     clock_ctrl | CLOCK_CTRL_625_CORE, 40);
 778                 }
 779         } else if ((orig_clock_ctrl & CLOCK_CTRL_44MHZ_CORE) != 0) {
 780                 tw32_wait_f(TG3PCI_CLOCK_CTRL,
 781                             clock_ctrl |
 782                             (CLOCK_CTRL_44MHZ_CORE | CLOCK_CTRL_ALTCLK),
 783                             40);
 784                 tw32_wait_f(TG3PCI_CLOCK_CTRL,
 785                             clock_ctrl | (CLOCK_CTRL_ALTCLK),
 786                             40);
 787         }
 788         tw32_wait_f(TG3PCI_CLOCK_CTRL, clock_ctrl, 40);
 789 }
 790
 791 #define PHY_BUSY_LOOPS  5000
 792
 793 static int tg3_readphy(struct tg3 *tp, int reg, u32 *val)
 794 {
 795         u32 frame_val;
 796         unsigned int loops;
 797         int ret;
 798
 799         if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
 800                 tw32_f(MAC_MI_MODE,
 801                      (tp->mi_mode & ~MAC_MI_MODE_AUTO_POLL));
 802                 udelay(80);
 803         }
 804
 805         *val = 0x0;
 806
 807         frame_val  = ((tp->phy_addr << MI_COM_PHY_ADDR_SHIFT) &
 808                       MI_COM_PHY_ADDR_MASK);
 809         frame_val |= ((reg << MI_COM_REG_ADDR_SHIFT) &
 810                       MI_COM_REG_ADDR_MASK);
 811         frame_val |= (MI_COM_CMD_READ | MI_COM_START);
 812
 813         tw32_f(MAC_MI_COM, frame_val);
 814
 815         loops = PHY_BUSY_LOOPS;
 816         while (loops != 0) {
 817                 udelay(10);
 818                 frame_val = tr32(MAC_MI_COM);
 819
 820                 if ((frame_val & MI_COM_BUSY) == 0) {
 821                         udelay(5);
 822                         frame_val = tr32(MAC_MI_COM);
 823                         break;
 824                 }
 825                 loops -= 1;
 826         }
 827
 828         ret = -EBUSY;
 829         if (loops != 0) {
 830                 *val = frame_val & MI_COM_DATA_MASK;
 831                 ret = 0;
 832         }
 833
 834         if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
 835                 tw32_f(MAC_MI_MODE, tp->mi_mode);
 836                 udelay(80);
 837         }
 838
 839         return ret;
 840 }
 841
 842 static int tg3_writephy(struct tg3 *tp, int reg, u32 val)
 843 {
 844         u32 frame_val;
 845         unsigned int loops;
 846         int ret;
 847
 848         if ((tp->phy_flags & TG3_PHYFLG_IS_FET) &&
 849             (reg == MII_TG3_CTRL || reg == MII_TG3_AUX_CTRL))
 850                 return 0;
 851
 852         if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
 853                 tw32_f(MAC_MI_MODE,
 854                      (tp->mi_mode & ~MAC_MI_MODE_AUTO_POLL));
 855                 udelay(80);
 856         }
 857
 858         frame_val  = ((tp->phy_addr << MI_COM_PHY_ADDR_SHIFT) &
 859                       MI_COM_PHY_ADDR_MASK);
 860         frame_val |= ((reg << MI_COM_REG_ADDR_SHIFT) &
 861                       MI_COM_REG_ADDR_MASK);
 862         frame_val |= (val & MI_COM_DATA_MASK);
 863         frame_val |= (MI_COM_CMD_WRITE | MI_COM_START);
 864
 865         tw32_f(MAC_MI_COM, frame_val);
 866
 867         loops = PHY_BUSY_LOOPS;
 868         while (loops != 0) {
 869                 udelay(10);
 870                 frame_val = tr32(MAC_MI_COM);
 871                 if ((frame_val & MI_COM_BUSY) == 0) {
 872                         udelay(5);
 873                         frame_val = tr32(MAC_MI_COM);
 874                         break;
 875                 }
 876                 loops -= 1;
 877         }
 878
 879         ret = -EBUSY;
 880         if (loops != 0)
 881                 ret = 0;
 882
 883         if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
 884                 tw32_f(MAC_MI_MODE, tp->mi_mode);
 885                 udelay(80);
 886         }
 887
 888         return ret;
 889 }
 890
 891 static int tg3_bmcr_reset(struct tg3 *tp)
 892 {
 893         u32 phy_control;
 894         int limit, err;
 895
 896         /* OK, reset it, and poll the BMCR_RESET bit until it
 897          * clears or we time out.
 898          */
 899         phy_control = BMCR_RESET;
 900         err = tg3_writephy(tp, MII_BMCR, phy_control);
 901         if (err != 0)
 902                 return -EBUSY;
 903
 904         limit = 5000;
 905         while (limit--) {
 906                 err = tg3_readphy(tp, MII_BMCR, &phy_control);
 907                 if (err != 0)
 908                         return -EBUSY;
 909
 910                 if ((phy_control & BMCR_RESET) == 0) {
 911                         udelay(40);
 912                         break;
 913                 }
 914                 udelay(10);
 915         }
 916         if (limit < 0)
 917                 return -EBUSY;
 918
 919         return 0;
 920 }
 921
 922 static int tg3_mdio_read(struct mii_bus *bp, int mii_id, int reg)
 923 {
 924         struct tg3 *tp = bp->priv;
 925         u32 val;
 926
 927         spin_lock_bh(&tp->lock);
 928
 929         if (tg3_readphy(tp, reg, &val))
 930                 val = -EIO;
 931
 932         spin_unlock_bh(&tp->lock);
 933
 934         return val;
 935 }
 936
 937 static int tg3_mdio_write(struct mii_bus *bp, int mii_id, int reg, u16 val)
 938 {
 939         struct tg3 *tp = bp->priv;
 940         u32 ret = 0;
 941
 942         spin_lock_bh(&tp->lock);
 943
 944         if (tg3_writephy(tp, reg, val))
 945                 ret = -EIO;
 946
 947         spin_unlock_bh(&tp->lock);
 948
 949         return ret;
 950 }
 951
 952 static int tg3_mdio_reset(struct mii_bus *bp)
 953 {
 954         return 0;
 955 }
 956
 957 static void tg3_mdio_config_5785(struct tg3 *tp)
 958 {
 959         u32 val;
 960         struct phy_device *phydev;
 961
 962         phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
 963         switch (phydev->drv->phy_id & phydev->drv->phy_id_mask) {
 964         case PHY_ID_BCM50610:
 965         case PHY_ID_BCM50610M:
 966                 val = MAC_PHYCFG2_50610_LED_MODES;
 967                 break;
 968         case PHY_ID_BCMAC131:
 969                 val = MAC_PHYCFG2_AC131_LED_MODES;
 970                 break;
 971         case PHY_ID_RTL8211C:
 972                 val = MAC_PHYCFG2_RTL8211C_LED_MODES;
 973                 break;
 974         case PHY_ID_RTL8201E:
 975                 val = MAC_PHYCFG2_RTL8201E_LED_MODES;
 976                 break;
 977         default:
 978                 return;
 979         }
 980
 981         if (phydev->interface != PHY_INTERFACE_MODE_RGMII) {
 982                 tw32(MAC_PHYCFG2, val);
 983
 984                 val = tr32(MAC_PHYCFG1);
 985                 val &= ~(MAC_PHYCFG1_RGMII_INT |
 986                          MAC_PHYCFG1_RXCLK_TO_MASK | MAC_PHYCFG1_TXCLK_TO_MASK);
 987                 val |= MAC_PHYCFG1_RXCLK_TIMEOUT | MAC_PHYCFG1_TXCLK_TIMEOUT;
 988                 tw32(MAC_PHYCFG1, val);
 989
 990                 return;
 991         }
 992
 993         if (!(tp->tg3_flags3 & TG3_FLG3_RGMII_INBAND_DISABLE))
 994                 val |= MAC_PHYCFG2_EMODE_MASK_MASK |
 995                        MAC_PHYCFG2_FMODE_MASK_MASK |
 996                        MAC_PHYCFG2_GMODE_MASK_MASK |
 997                        MAC_PHYCFG2_ACT_MASK_MASK   |
 998                        MAC_PHYCFG2_QUAL_MASK_MASK |
 999                        MAC_PHYCFG2_INBAND_ENABLE;
1000
1001         tw32(MAC_PHYCFG2, val);
1002
1003         val = tr32(MAC_PHYCFG1);
1004         val &= ~(MAC_PHYCFG1_RXCLK_TO_MASK | MAC_PHYCFG1_TXCLK_TO_MASK |
1005                  MAC_PHYCFG1_RGMII_EXT_RX_DEC | MAC_PHYCFG1_RGMII_SND_STAT_EN);
1006         if (!(tp->tg3_flags3 & TG3_FLG3_RGMII_INBAND_DISABLE)) {
1007                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_RX_EN)
1008                         val |= MAC_PHYCFG1_RGMII_EXT_RX_DEC;
1009                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_TX_EN)
1010                         val |= MAC_PHYCFG1_RGMII_SND_STAT_EN;
1011         }
1012         val |= MAC_PHYCFG1_RXCLK_TIMEOUT | MAC_PHYCFG1_TXCLK_TIMEOUT |
1013                MAC_PHYCFG1_RGMII_INT | MAC_PHYCFG1_TXC_DRV;
1014         tw32(MAC_PHYCFG1, val);
1015
1016         val = tr32(MAC_EXT_RGMII_MODE);
1017         val &= ~(MAC_RGMII_MODE_RX_INT_B |
1018                  MAC_RGMII_MODE_RX_QUALITY |
1019                  MAC_RGMII_MODE_RX_ACTIVITY |
1020                  MAC_RGMII_MODE_RX_ENG_DET |
1021                  MAC_RGMII_MODE_TX_ENABLE |
1022                  MAC_RGMII_MODE_TX_LOWPWR |
1023                  MAC_RGMII_MODE_TX_RESET);
1024         if (!(tp->tg3_flags3 & TG3_FLG3_RGMII_INBAND_DISABLE)) {
1025                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_RX_EN)
1026                         val |= MAC_RGMII_MODE_RX_INT_B |
1027                                MAC_RGMII_MODE_RX_QUALITY |
1028                                MAC_RGMII_MODE_RX_ACTIVITY |
1029                                MAC_RGMII_MODE_RX_ENG_DET;
1030                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_TX_EN)
1031                         val |= MAC_RGMII_MODE_TX_ENABLE |
1032                                MAC_RGMII_MODE_TX_LOWPWR |
1033                                MAC_RGMII_MODE_TX_RESET;
1034         }
1035         tw32(MAC_EXT_RGMII_MODE, val);
1036 }
1037
1038 static void tg3_mdio_start(struct tg3 *tp)
1039 {
1040         tp->mi_mode &= ~MAC_MI_MODE_AUTO_POLL;
1041         tw32_f(MAC_MI_MODE, tp->mi_mode);
1042         udelay(80);
1043
1044         if ((tp->tg3_flags3 & TG3_FLG3_MDIOBUS_INITED) &&
1045             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
1046                 tg3_mdio_config_5785(tp);
1047 }
1048
1049 static int tg3_mdio_init(struct tg3 *tp)
1050 {
1051         int i;
1052         u32 reg;
1053         struct phy_device *phydev;
1054
1055         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
1056             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719) {
1057                 u32 is_serdes;
1058
1059                 tp->phy_addr = PCI_FUNC(tp->pdev->devfn) + 1;
1060
1061                 if (tp->pci_chip_rev_id != CHIPREV_ID_5717_A0)
1062                         is_serdes = tr32(SG_DIG_STATUS) & SG_DIG_IS_SERDES;
1063                 else
1064                         is_serdes = tr32(TG3_CPMU_PHY_STRAP) &
1065                                     TG3_CPMU_PHY_STRAP_IS_SERDES;
1066                 if (is_serdes)
1067                         tp->phy_addr += 7;
1068         } else
1069                 tp->phy_addr = TG3_PHY_MII_ADDR;
1070
1071         tg3_mdio_start(tp);
1072
1073         if (!(tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) ||
1074             (tp->tg3_flags3 & TG3_FLG3_MDIOBUS_INITED))
1075                 return 0;
1076
1077         tp->mdio_bus = mdiobus_alloc();
1078         if (tp->mdio_bus == NULL)
1079                 return -ENOMEM;
1080
1081         tp->mdio_bus->name     = "tg3 mdio bus";
1082         snprintf(tp->mdio_bus->id, MII_BUS_ID_SIZE, "%x",
1083                  (tp->pdev->bus->number << 8) | tp->pdev->devfn);
1084         tp->mdio_bus->priv     = tp;
1085         tp->mdio_bus->parent   = &tp->pdev->dev;
1086         tp->mdio_bus->read     = &tg3_mdio_read;
1087         tp->mdio_bus->write    = &tg3_mdio_write;
1088         tp->mdio_bus->reset    = &tg3_mdio_reset;
1089         tp->mdio_bus->phy_mask = ~(1 << TG3_PHY_MII_ADDR);
1090         tp->mdio_bus->irq      = &tp->mdio_irq[0];
1091
1092         for (i = 0; i < PHY_MAX_ADDR; i++)
1093                 tp->mdio_bus->irq[i] = PHY_POLL;
1094
1095         /* The bus registration will look for all the PHYs on the mdio bus.
1096          * Unfortunately, it does not ensure the PHY is powered up before
1097          * accessing the PHY ID registers.  A chip reset is the
1098          * quickest way to bring the device back to an operational state..
1099          */
1100         if (tg3_readphy(tp, MII_BMCR, &reg) || (reg & BMCR_PDOWN))
1101                 tg3_bmcr_reset(tp);
1102
1103         i = mdiobus_register(tp->mdio_bus);
1104         if (i) {
1105                 dev_warn(&tp->pdev->dev, "mdiobus_reg failed (0x%x)\n", i);
1106                 mdiobus_free(tp->mdio_bus);
1107                 return i;
1108         }
1109
1110         phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
1111
1112         if (!phydev || !phydev->drv) {
1113                 dev_warn(&tp->pdev->dev, "No PHY devices\n");
1114                 mdiobus_unregister(tp->mdio_bus);
1115                 mdiobus_free(tp->mdio_bus);
1116                 return -ENODEV;
1117         }
1118
1119         switch (phydev->drv->phy_id & phydev->drv->phy_id_mask) {
1120         case PHY_ID_BCM57780:
1121                 phydev->interface = PHY_INTERFACE_MODE_GMII;
1122                 phydev->dev_flags |= PHY_BRCM_AUTO_PWRDWN_ENABLE;
1123                 break;
1124         case PHY_ID_BCM50610:
1125         case PHY_ID_BCM50610M:
1126                 phydev->dev_flags |= PHY_BRCM_CLEAR_RGMII_MODE |
1127                                      PHY_BRCM_RX_REFCLK_UNUSED |
1128                                      PHY_BRCM_DIS_TXCRXC_NOENRGY |
1129                                      PHY_BRCM_AUTO_PWRDWN_ENABLE;
1130                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_INBAND_DISABLE)
1131                         phydev->dev_flags |= PHY_BRCM_STD_IBND_DISABLE;
1132                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_RX_EN)
1133                         phydev->dev_flags |= PHY_BRCM_EXT_IBND_RX_ENABLE;
1134                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_TX_EN)
1135                         phydev->dev_flags |= PHY_BRCM_EXT_IBND_TX_ENABLE;
1136                 /* fallthru */
1137         case PHY_ID_RTL8211C:
1138                 phydev->interface = PHY_INTERFACE_MODE_RGMII;
1139                 break;
1140         case PHY_ID_RTL8201E:
1141         case PHY_ID_BCMAC131:
1142                 phydev->interface = PHY_INTERFACE_MODE_MII;
1143                 phydev->dev_flags |= PHY_BRCM_AUTO_PWRDWN_ENABLE;
1144                 tp->phy_flags |= TG3_PHYFLG_IS_FET;
1145                 break;
1146         }
1147
1148         tp->tg3_flags3 |= TG3_FLG3_MDIOBUS_INITED;
1149
1150         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
1151                 tg3_mdio_config_5785(tp);
1152
1153         return 0;
1154 }
1155
1156 static void tg3_mdio_fini(struct tg3 *tp)
1157 {
1158         if (tp->tg3_flags3 & TG3_FLG3_MDIOBUS_INITED) {
1159                 tp->tg3_flags3 &= ~TG3_FLG3_MDIOBUS_INITED;
1160                 mdiobus_unregister(tp->mdio_bus);
1161                 mdiobus_free(tp->mdio_bus);
1162         }
1163 }
1164
1165 static int tg3_phy_cl45_write(struct tg3 *tp, u32 devad, u32 addr, u32 val)
1166 {
1167         int err;
1168
1169         err = tg3_writephy(tp, MII_TG3_MMD_CTRL, devad);
1170         if (err)
1171                 goto done;
1172
1173         err = tg3_writephy(tp, MII_TG3_MMD_ADDRESS, addr);
1174         if (err)
1175                 goto done;
1176
1177         err = tg3_writephy(tp, MII_TG3_MMD_CTRL,
1178                            MII_TG3_MMD_CTRL_DATA_NOINC | devad);
1179         if (err)
1180                 goto done;
1181
1182         err = tg3_writephy(tp, MII_TG3_MMD_ADDRESS, val);
1183
1184 done:
1185         return err;
1186 }
1187
1188 static int tg3_phy_cl45_read(struct tg3 *tp, u32 devad, u32 addr, u32 *val)
1189 {
1190         int err;
1191
1192         err = tg3_writephy(tp, MII_TG3_MMD_CTRL, devad);
1193         if (err)
1194                 goto done;
1195
1196         err = tg3_writephy(tp, MII_TG3_MMD_ADDRESS, addr);
1197         if (err)
1198                 goto done;
1199
1200         err = tg3_writephy(tp, MII_TG3_MMD_CTRL,
1201                            MII_TG3_MMD_CTRL_DATA_NOINC | devad);
1202         if (err)
1203                 goto done;
1204
1205         err = tg3_readphy(tp, MII_TG3_MMD_ADDRESS, val);
1206
1207 done:
1208         return err;
1209 }
1210
1211 /* tp->lock is held. */
1212 static inline void tg3_generate_fw_event(struct tg3 *tp)
1213 {
1214         u32 val;
1215
1216         val = tr32(GRC_RX_CPU_EVENT);
1217         val |= GRC_RX_CPU_DRIVER_EVENT;
1218         tw32_f(GRC_RX_CPU_EVENT, val);
1219
1220         tp->last_event_jiffies = jiffies;
1221 }
1222
1223 #define TG3_FW_EVENT_TIMEOUT_USEC 2500
1224
1225 /* tp->lock is held. */
1226 static void tg3_wait_for_event_ack(struct tg3 *tp)
1227 {
1228         int i;
1229         unsigned int delay_cnt;
1230         long time_remain;
1231
1232         /* If enough time has passed, no wait is necessary. */
1233         time_remain = (long)(tp->last_event_jiffies + 1 +
1234                       usecs_to_jiffies(TG3_FW_EVENT_TIMEOUT_USEC)) -
1235                       (long)jiffies;
1236         if (time_remain < 0)
1237                 return;
1238
1239         /* Check if we can shorten the wait time. */
1240         delay_cnt = jiffies_to_usecs(time_remain);
1241         if (delay_cnt > TG3_FW_EVENT_TIMEOUT_USEC)
1242                 delay_cnt = TG3_FW_EVENT_TIMEOUT_USEC;
1243         delay_cnt = (delay_cnt >> 3) + 1;
1244
1245         for (i = 0; i < delay_cnt; i++) {
1246                 if (!(tr32(GRC_RX_CPU_EVENT) & GRC_RX_CPU_DRIVER_EVENT))
1247                         break;
1248                 udelay(8);
1249         }
1250 }
1251
1252 /* tp->lock is held. */
1253 static void tg3_ump_link_report(struct tg3 *tp)
1254 {
1255         u32 reg;
1256         u32 val;
1257
1258         if (!(tp->tg3_flags2 & TG3_FLG2_5780_CLASS) ||
1259             !(tp->tg3_flags  & TG3_FLAG_ENABLE_ASF))
1260                 return;
1261
1262         tg3_wait_for_event_ack(tp);
1263
1264         tg3_write_mem(tp, NIC_SRAM_FW_CMD_MBOX, FWCMD_NICDRV_LINK_UPDATE);
1265
1266         tg3_write_mem(tp, NIC_SRAM_FW_CMD_LEN_MBOX, 14);
1267
1268         val = 0;
1269         if (!tg3_readphy(tp, MII_BMCR, &reg))
1270                 val = reg << 16;
1271         if (!tg3_readphy(tp, MII_BMSR, &reg))
1272                 val |= (reg & 0xffff);
1273         tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX, val);
1274
1275         val = 0;
1276         if (!tg3_readphy(tp, MII_ADVERTISE, &reg))
1277                 val = reg << 16;
1278         if (!tg3_readphy(tp, MII_LPA, &reg))
1279                 val |= (reg & 0xffff);
1280         tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 4, val);
1281
1282         val = 0;
1283         if (!(tp->phy_flags & TG3_PHYFLG_MII_SERDES)) {
1284                 if (!tg3_readphy(tp, MII_CTRL1000, &reg))
1285                         val = reg << 16;
1286                 if (!tg3_readphy(tp, MII_STAT1000, &reg))
1287                         val |= (reg & 0xffff);
1288         }
1289         tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 8, val);
1290
1291         if (!tg3_readphy(tp, MII_PHYADDR, &reg))
1292                 val = reg << 16;
1293         else
1294                 val = 0;
1295         tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 12, val);
1296
1297         tg3_generate_fw_event(tp);
1298 }
1299
1300 static void tg3_link_report(struct tg3 *tp)
1301 {
1302         if (!netif_carrier_ok(tp->dev)) {
1303                 netif_info(tp, link, tp->dev, "Link is down\n");
1304                 tg3_ump_link_report(tp);
1305         } else if (netif_msg_link(tp)) {
1306                 netdev_info(tp->dev, "Link is up at %d Mbps, %s duplex\n",
1307                             (tp->link_config.active_speed == SPEED_1000 ?
1308                              1000 :
1309                              (tp->link_config.active_speed == SPEED_100 ?
1310                               100 : 10)),
1311                             (tp->link_config.active_duplex == DUPLEX_FULL ?
1312                              "full" : "half"));
1313
1314                 netdev_info(tp->dev, "Flow control is %s for TX and %s for RX\n",
1315                             (tp->link_config.active_flowctrl & FLOW_CTRL_TX) ?
1316                             "on" : "off",
1317                             (tp->link_config.active_flowctrl & FLOW_CTRL_RX) ?
1318                             "on" : "off");
1319                 tg3_ump_link_report(tp);
1320         }
1321 }
1322
1323 static u16 tg3_advert_flowctrl_1000T(u8 flow_ctrl)
1324 {
1325         u16 miireg;
1326
1327         if ((flow_ctrl & FLOW_CTRL_TX) && (flow_ctrl & FLOW_CTRL_RX))
1328                 miireg = ADVERTISE_PAUSE_CAP;
1329         else if (flow_ctrl & FLOW_CTRL_TX)
1330                 miireg = ADVERTISE_PAUSE_ASYM;
1331         else if (flow_ctrl & FLOW_CTRL_RX)
1332                 miireg = ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
1333         else
1334                 miireg = 0;
1335
1336         return miireg;
1337 }
1338
1339 static u16 tg3_advert_flowctrl_1000X(u8 flow_ctrl)
1340 {
1341         u16 miireg;
1342
1343         if ((flow_ctrl & FLOW_CTRL_TX) && (flow_ctrl & FLOW_CTRL_RX))
1344                 miireg = ADVERTISE_1000XPAUSE;
1345         else if (flow_ctrl & FLOW_CTRL_TX)
1346                 miireg = ADVERTISE_1000XPSE_ASYM;
1347         else if (flow_ctrl & FLOW_CTRL_RX)
1348                 miireg = ADVERTISE_1000XPAUSE | ADVERTISE_1000XPSE_ASYM;
1349         else
1350                 miireg = 0;
1351
1352         return miireg;
1353 }
1354
1355 static u8 tg3_resolve_flowctrl_1000X(u16 lcladv, u16 rmtadv)
1356 {
1357         u8 cap = 0;
1358
1359         if (lcladv & ADVERTISE_1000XPAUSE) {
1360                 if (lcladv & ADVERTISE_1000XPSE_ASYM) {
1361                         if (rmtadv & LPA_1000XPAUSE)
1362                                 cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
1363                         else if (rmtadv & LPA_1000XPAUSE_ASYM)
1364                                 cap = FLOW_CTRL_RX;
1365                 } else {
1366                         if (rmtadv & LPA_1000XPAUSE)
1367                                 cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
1368                 }
1369         } else if (lcladv & ADVERTISE_1000XPSE_ASYM) {
1370                 if ((rmtadv & LPA_1000XPAUSE) && (rmtadv & LPA_1000XPAUSE_ASYM))
1371                         cap = FLOW_CTRL_TX;
1372         }
1373
1374         return cap;
1375 }
1376
1377 static void tg3_setup_flow_control(struct tg3 *tp, u32 lcladv, u32 rmtadv)
1378 {
1379         u8 autoneg;
1380         u8 flowctrl = 0;
1381         u32 old_rx_mode = tp->rx_mode;
1382         u32 old_tx_mode = tp->tx_mode;
1383
1384         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB)
1385                 autoneg = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR]->autoneg;
1386         else
1387                 autoneg = tp->link_config.autoneg;
1388
1389         if (autoneg == AUTONEG_ENABLE &&
1390             (tp->tg3_flags & TG3_FLAG_PAUSE_AUTONEG)) {
1391                 if (tp->phy_flags & TG3_PHYFLG_ANY_SERDES)
1392                         flowctrl = tg3_resolve_flowctrl_1000X(lcladv, rmtadv);
1393                 else
1394                         flowctrl = mii_resolve_flowctrl_fdx(lcladv, rmtadv);
1395         } else
1396                 flowctrl = tp->link_config.flowctrl;
1397
1398         tp->link_config.active_flowctrl = flowctrl;
1399
1400         if (flowctrl & FLOW_CTRL_RX)
1401                 tp->rx_mode |= RX_MODE_FLOW_CTRL_ENABLE;
1402         else
1403                 tp->rx_mode &= ~RX_MODE_FLOW_CTRL_ENABLE;
1404
1405         if (old_rx_mode != tp->rx_mode)
1406                 tw32_f(MAC_RX_MODE, tp->rx_mode);
1407
1408         if (flowctrl & FLOW_CTRL_TX)
1409                 tp->tx_mode |= TX_MODE_FLOW_CTRL_ENABLE;
1410         else
1411                 tp->tx_mode &= ~TX_MODE_FLOW_CTRL_ENABLE;
1412
1413         if (old_tx_mode != tp->tx_mode)
1414                 tw32_f(MAC_TX_MODE, tp->tx_mode);
1415 }
1416
1417 static void tg3_adjust_link(struct net_device *dev)
1418 {
1419         u8 oldflowctrl, linkmesg = 0;
1420         u32 mac_mode, lcl_adv, rmt_adv;
1421         struct tg3 *tp = netdev_priv(dev);
1422         struct phy_device *phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
1423
1424         spin_lock_bh(&tp->lock);
1425
1426         mac_mode = tp->mac_mode & ~(MAC_MODE_PORT_MODE_MASK |
1427                                     MAC_MODE_HALF_DUPLEX);
1428
1429         oldflowctrl = tp->link_config.active_flowctrl;
1430
1431         if (phydev->link) {
1432                 lcl_adv = 0;
1433                 rmt_adv = 0;
1434
1435                 if (phydev->speed == SPEED_100 || phydev->speed == SPEED_10)
1436                         mac_mode |= MAC_MODE_PORT_MODE_MII;
1437                 else if (phydev->speed == SPEED_1000 ||
1438                          GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785)
1439                         mac_mode |= MAC_MODE_PORT_MODE_GMII;
1440                 else
1441                         mac_mode |= MAC_MODE_PORT_MODE_MII;
1442
1443                 if (phydev->duplex == DUPLEX_HALF)
1444                         mac_mode |= MAC_MODE_HALF_DUPLEX;
1445                 else {
1446                         lcl_adv = tg3_advert_flowctrl_1000T(
1447                                   tp->link_config.flowctrl);
1448
1449                         if (phydev->pause)
1450                                 rmt_adv = LPA_PAUSE_CAP;
1451                         if (phydev->asym_pause)
1452                                 rmt_adv |= LPA_PAUSE_ASYM;
1453                 }
1454
1455                 tg3_setup_flow_control(tp, lcl_adv, rmt_adv);
1456         } else
1457                 mac_mode |= MAC_MODE_PORT_MODE_GMII;
1458
1459         if (mac_mode != tp->mac_mode) {
1460                 tp->mac_mode = mac_mode;
1461                 tw32_f(MAC_MODE, tp->mac_mode);
1462                 udelay(40);
1463         }
1464
1465         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785) {
1466                 if (phydev->speed == SPEED_10)
1467                         tw32(MAC_MI_STAT,
1468                              MAC_MI_STAT_10MBPS_MODE |
1469                              MAC_MI_STAT_LNKSTAT_ATTN_ENAB);
1470                 else
1471                         tw32(MAC_MI_STAT, MAC_MI_STAT_LNKSTAT_ATTN_ENAB);
1472         }
1473
1474         if (phydev->speed == SPEED_1000 && phydev->duplex == DUPLEX_HALF)
1475                 tw32(MAC_TX_LENGTHS,
1476                      ((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
1477                       (6 << TX_LENGTHS_IPG_SHIFT) |
1478                       (0xff << TX_LENGTHS_SLOT_TIME_SHIFT)));
1479         else
1480                 tw32(MAC_TX_LENGTHS,
1481                      ((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
1482                       (6 << TX_LENGTHS_IPG_SHIFT) |
1483                       (32 << TX_LENGTHS_SLOT_TIME_SHIFT)));
1484
1485         if ((phydev->link && tp->link_config.active_speed == SPEED_INVALID) ||
1486             (!phydev->link && tp->link_config.active_speed != SPEED_INVALID) ||
1487             phydev->speed != tp->link_config.active_speed ||
1488             phydev->duplex != tp->link_config.active_duplex ||
1489             oldflowctrl != tp->link_config.active_flowctrl)
1490                 linkmesg = 1;
1491
1492         tp->link_config.active_speed = phydev->speed;
1493         tp->link_config.active_duplex = phydev->duplex;
1494
1495         spin_unlock_bh(&tp->lock);
1496
1497         if (linkmesg)
1498                 tg3_link_report(tp);
1499 }
1500
1501 static int tg3_phy_init(struct tg3 *tp)
1502 {
1503         struct phy_device *phydev;
1504
1505         if (tp->phy_flags & TG3_PHYFLG_IS_CONNECTED)
1506                 return 0;
1507
1508         /* Bring the PHY back to a known state. */
1509         tg3_bmcr_reset(tp);
1510
1511         phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
1512
1513         /* Attach the MAC to the PHY. */
1514         phydev = phy_connect(tp->dev, dev_name(&phydev->dev), tg3_adjust_link,
1515                              phydev->dev_flags, phydev->interface);
1516         if (IS_ERR(phydev)) {
1517                 dev_err(&tp->pdev->dev, "Could not attach to PHY\n");
1518                 return PTR_ERR(phydev);
1519         }
1520
1521         /* Mask with MAC supported features. */
1522         switch (phydev->interface) {
1523         case PHY_INTERFACE_MODE_GMII:
1524         case PHY_INTERFACE_MODE_RGMII:
1525                 if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY)) {
1526                         phydev->supported &= (PHY_GBIT_FEATURES |
1527                                               SUPPORTED_Pause |
1528                                               SUPPORTED_Asym_Pause);
1529                         break;
1530                 }
1531                 /* fallthru */
1532         case PHY_INTERFACE_MODE_MII:
1533                 phydev->supported &= (PHY_BASIC_FEATURES |
1534                                       SUPPORTED_Pause |
1535                                       SUPPORTED_Asym_Pause);
1536                 break;
1537         default:
1538                 phy_disconnect(tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR]);
1539                 return -EINVAL;
1540         }
1541
1542         tp->phy_flags |= TG3_PHYFLG_IS_CONNECTED;
1543
1544         phydev->advertising = phydev->supported;
1545
1546         return 0;
1547 }
1548
1549 static void tg3_phy_start(struct tg3 *tp)
1550 {
1551         struct phy_device *phydev;
1552
1553         if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
1554                 return;
1555
1556         phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
1557
1558         if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER) {
1559                 tp->phy_flags &= ~TG3_PHYFLG_IS_LOW_POWER;
1560                 phydev->speed = tp->link_config.orig_speed;
1561                 phydev->duplex = tp->link_config.orig_duplex;
1562                 phydev->autoneg = tp->link_config.orig_autoneg;
1563                 phydev->advertising = tp->link_config.orig_advertising;
1564         }
1565
1566         phy_start(phydev);
1567
1568         phy_start_aneg(phydev);
1569 }
1570
1571 static void tg3_phy_stop(struct tg3 *tp)
1572 {
1573         if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
1574                 return;
1575
1576         phy_stop(tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR]);
1577 }
1578
1579 static void tg3_phy_fini(struct tg3 *tp)
1580 {
1581         if (tp->phy_flags & TG3_PHYFLG_IS_CONNECTED) {
1582                 phy_disconnect(tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR]);
1583                 tp->phy_flags &= ~TG3_PHYFLG_IS_CONNECTED;
1584         }
1585 }
1586
1587 static int tg3_phydsp_read(struct tg3 *tp, u32 reg, u32 *val)
1588 {
1589         int err;
1590
1591         err = tg3_writephy(tp, MII_TG3_DSP_ADDRESS, reg);
1592         if (!err)
1593                 err = tg3_readphy(tp, MII_TG3_DSP_RW_PORT, val);
1594
1595         return err;
1596 }
1597
1598 static int tg3_phydsp_write(struct tg3 *tp, u32 reg, u32 val)
1599 {
1600         int err;
1601
1602         err = tg3_writephy(tp, MII_TG3_DSP_ADDRESS, reg);
1603         if (!err)
1604                 err = tg3_writephy(tp, MII_TG3_DSP_RW_PORT, val);
1605
1606         return err;
1607 }
1608
1609 static void tg3_phy_fet_toggle_apd(struct tg3 *tp, bool enable)
1610 {
1611         u32 phytest;
1612
1613         if (!tg3_readphy(tp, MII_TG3_FET_TEST, &phytest)) {
1614                 u32 phy;
1615
1616                 tg3_writephy(tp, MII_TG3_FET_TEST,
1617                              phytest | MII_TG3_FET_SHADOW_EN);
1618                 if (!tg3_readphy(tp, MII_TG3_FET_SHDW_AUXSTAT2, &phy)) {
1619                         if (enable)
1620                                 phy |= MII_TG3_FET_SHDW_AUXSTAT2_APD;
1621                         else
1622                                 phy &= ~MII_TG3_FET_SHDW_AUXSTAT2_APD;
1623                         tg3_writephy(tp, MII_TG3_FET_SHDW_AUXSTAT2, phy);
1624                 }
1625                 tg3_writephy(tp, MII_TG3_FET_TEST, phytest);
1626         }
1627 }
1628
1629 static void tg3_phy_toggle_apd(struct tg3 *tp, bool enable)
1630 {
1631         u32 reg;
1632
1633         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ||
1634             ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
1635               GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719) &&
1636              (tp->phy_flags & TG3_PHYFLG_MII_SERDES)))
1637                 return;
1638
1639         if (tp->phy_flags & TG3_PHYFLG_IS_FET) {
1640                 tg3_phy_fet_toggle_apd(tp, enable);
1641                 return;
1642         }
1643
1644         reg = MII_TG3_MISC_SHDW_WREN |
1645               MII_TG3_MISC_SHDW_SCR5_SEL |
1646               MII_TG3_MISC_SHDW_SCR5_LPED |
1647               MII_TG3_MISC_SHDW_SCR5_DLPTLM |
1648               MII_TG3_MISC_SHDW_SCR5_SDTL |
1649               MII_TG3_MISC_SHDW_SCR5_C125OE;
1650         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5784 || !enable)
1651                 reg |= MII_TG3_MISC_SHDW_SCR5_DLLAPD;
1652
1653         tg3_writephy(tp, MII_TG3_MISC_SHDW, reg);
1654
1655
1656         reg = MII_TG3_MISC_SHDW_WREN |
1657               MII_TG3_MISC_SHDW_APD_SEL |
1658               MII_TG3_MISC_SHDW_APD_WKTM_84MS;
1659         if (enable)
1660                 reg |= MII_TG3_MISC_SHDW_APD_ENABLE;
1661
1662         tg3_writephy(tp, MII_TG3_MISC_SHDW, reg);
1663 }
1664
1665 static void tg3_phy_toggle_automdix(struct tg3 *tp, int enable)
1666 {
1667         u32 phy;
1668
1669         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ||
1670             (tp->phy_flags & TG3_PHYFLG_ANY_SERDES))
1671                 return;
1672
1673         if (tp->phy_flags & TG3_PHYFLG_IS_FET) {
1674                 u32 ephy;
1675
1676                 if (!tg3_readphy(tp, MII_TG3_FET_TEST, &ephy)) {
1677                         u32 reg = MII_TG3_FET_SHDW_MISCCTRL;
1678
1679                         tg3_writephy(tp, MII_TG3_FET_TEST,
1680                                      ephy | MII_TG3_FET_SHADOW_EN);
1681                         if (!tg3_readphy(tp, reg, &phy)) {
1682                                 if (enable)
1683                                         phy |= MII_TG3_FET_SHDW_MISCCTRL_MDIX;
1684                                 else
1685                                         phy &= ~MII_TG3_FET_SHDW_MISCCTRL_MDIX;
1686                                 tg3_writephy(tp, reg, phy);
1687                         }
1688                         tg3_writephy(tp, MII_TG3_FET_TEST, ephy);
1689                 }
1690         } else {
1691                 phy = MII_TG3_AUXCTL_MISC_RDSEL_MISC |
1692                       MII_TG3_AUXCTL_SHDWSEL_MISC;
1693                 if (!tg3_writephy(tp, MII_TG3_AUX_CTRL, phy) &&
1694                     !tg3_readphy(tp, MII_TG3_AUX_CTRL, &phy)) {
1695                         if (enable)
1696                                 phy |= MII_TG3_AUXCTL_MISC_FORCE_AMDIX;
1697                         else
1698                                 phy &= ~MII_TG3_AUXCTL_MISC_FORCE_AMDIX;
1699                         phy |= MII_TG3_AUXCTL_MISC_WREN;
1700                         tg3_writephy(tp, MII_TG3_AUX_CTRL, phy);
1701                 }
1702         }
1703 }
1704
1705 static void tg3_phy_set_wirespeed(struct tg3 *tp)
1706 {
1707         u32 val;
1708
1709         if (tp->phy_flags & TG3_PHYFLG_NO_ETH_WIRE_SPEED)
1710                 return;
1711
1712         if (!tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x7007) &&
1713             !tg3_readphy(tp, MII_TG3_AUX_CTRL, &val))
1714                 tg3_writephy(tp, MII_TG3_AUX_CTRL,
1715                              (val | (1 << 15) | (1 << 4)));
1716 }
1717
1718 static void tg3_phy_apply_otp(struct tg3 *tp)
1719 {
1720         u32 otp, phy;
1721
1722         if (!tp->phy_otp)
1723                 return;
1724
1725         otp = tp->phy_otp;
1726
1727         /* Enable SM_DSP clock and tx 6dB coding. */
1728         phy = MII_TG3_AUXCTL_SHDWSEL_AUXCTL |
1729               MII_TG3_AUXCTL_ACTL_SMDSP_ENA |
1730               MII_TG3_AUXCTL_ACTL_TX_6DB;
1731         tg3_writephy(tp, MII_TG3_AUX_CTRL, phy);
1732
1733         phy = ((otp & TG3_OTP_AGCTGT_MASK) >> TG3_OTP_AGCTGT_SHIFT);
1734         phy |= MII_TG3_DSP_TAP1_AGCTGT_DFLT;
1735         tg3_phydsp_write(tp, MII_TG3_DSP_TAP1, phy);
1736
1737         phy = ((otp & TG3_OTP_HPFFLTR_MASK) >> TG3_OTP_HPFFLTR_SHIFT) |
1738               ((otp & TG3_OTP_HPFOVER_MASK) >> TG3_OTP_HPFOVER_SHIFT);
1739         tg3_phydsp_write(tp, MII_TG3_DSP_AADJ1CH0, phy);
1740
1741         phy = ((otp & TG3_OTP_LPFDIS_MASK) >> TG3_OTP_LPFDIS_SHIFT);
1742         phy |= MII_TG3_DSP_AADJ1CH3_ADCCKADJ;
1743         tg3_phydsp_write(tp, MII_TG3_DSP_AADJ1CH3, phy);
1744
1745         phy = ((otp & TG3_OTP_VDAC_MASK) >> TG3_OTP_VDAC_SHIFT);
1746         tg3_phydsp_write(tp, MII_TG3_DSP_EXP75, phy);
1747
1748         phy = ((otp & TG3_OTP_10BTAMP_MASK) >> TG3_OTP_10BTAMP_SHIFT);
1749         tg3_phydsp_write(tp, MII_TG3_DSP_EXP96, phy);
1750
1751         phy = ((otp & TG3_OTP_ROFF_MASK) >> TG3_OTP_ROFF_SHIFT) |
1752               ((otp & TG3_OTP_RCOFF_MASK) >> TG3_OTP_RCOFF_SHIFT);
1753         tg3_phydsp_write(tp, MII_TG3_DSP_EXP97, phy);
1754
1755         /* Turn off SM_DSP clock. */
1756         phy = MII_TG3_AUXCTL_SHDWSEL_AUXCTL |
1757               MII_TG3_AUXCTL_ACTL_TX_6DB;
1758         tg3_writephy(tp, MII_TG3_AUX_CTRL, phy);
1759 }
1760
1761 static void tg3_phy_eee_adjust(struct tg3 *tp, u32 current_link_up)
1762 {
1763         u32 val;
1764
1765         if (!(tp->phy_flags & TG3_PHYFLG_EEE_CAP))
1766                 return;
1767
1768         tp->setlpicnt = 0;
1769
1770         if (tp->link_config.autoneg == AUTONEG_ENABLE &&
1771             current_link_up == 1 &&
1772             (tp->link_config.active_speed == SPEED_1000 ||
1773              (tp->link_config.active_speed == SPEED_100 &&
1774               tp->link_config.active_duplex == DUPLEX_FULL))) {
1775                 u32 eeectl;
1776
1777                 if (tp->link_config.active_speed == SPEED_1000)
1778                         eeectl = TG3_CPMU_EEE_CTRL_EXIT_16_5_US;
1779                 else
1780                         eeectl = TG3_CPMU_EEE_CTRL_EXIT_36_US;
1781
1782                 tw32(TG3_CPMU_EEE_CTRL, eeectl);
1783
1784                 tg3_phy_cl45_read(tp, 0x7, TG3_CL45_D7_EEERES_STAT, &val);
1785
1786                 if (val == TG3_CL45_D7_EEERES_STAT_LP_1000T ||
1787                     val == TG3_CL45_D7_EEERES_STAT_LP_100TX)
1788                         tp->setlpicnt = 2;
1789         }
1790
1791         if (!tp->setlpicnt) {
1792                 val = tr32(TG3_CPMU_EEE_MODE);
1793                 tw32(TG3_CPMU_EEE_MODE, val & ~TG3_CPMU_EEEMD_LPI_ENABLE);
1794         }
1795 }
1796
1797 static int tg3_wait_macro_done(struct tg3 *tp)
1798 {
1799         int limit = 100;
1800
1801         while (limit--) {
1802                 u32 tmp32;
1803
1804                 if (!tg3_readphy(tp, MII_TG3_DSP_CONTROL, &tmp32)) {
1805                         if ((tmp32 & 0x1000) == 0)
1806                                 break;
1807                 }
1808         }
1809         if (limit < 0)
1810                 return -EBUSY;
1811
1812         return 0;
1813 }
1814
1815 static int tg3_phy_write_and_check_testpat(struct tg3 *tp, int *resetp)
1816 {
1817         static const u32 test_pat[4][6] = {
1818         { 0x00005555, 0x00000005, 0x00002aaa, 0x0000000a, 0x00003456, 0x00000003 },
1819         { 0x00002aaa, 0x0000000a, 0x00003333, 0x00000003, 0x0000789a, 0x00000005 },
1820         { 0x00005a5a, 0x00000005, 0x00002a6a, 0x0000000a, 0x00001bcd, 0x00000003 },
1821         { 0x00002a5a, 0x0000000a, 0x000033c3, 0x00000003, 0x00002ef1, 0x00000005 }
1822         };
1823         int chan;
1824
1825         for (chan = 0; chan < 4; chan++) {
1826                 int i;
1827
1828                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
1829                              (chan * 0x2000) | 0x0200);
1830                 tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0002);
1831
1832                 for (i = 0; i < 6; i++)
1833                         tg3_writephy(tp, MII_TG3_DSP_RW_PORT,
1834                                      test_pat[chan][i]);
1835
1836                 tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0202);
1837                 if (tg3_wait_macro_done(tp)) {
1838                         *resetp = 1;
1839                         return -EBUSY;
1840                 }
1841
1842                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
1843                              (chan * 0x2000) | 0x0200);
1844                 tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0082);
1845                 if (tg3_wait_macro_done(tp)) {
1846                         *resetp = 1;
1847                         return -EBUSY;
1848                 }
1849
1850                 tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0802);
1851                 if (tg3_wait_macro_done(tp)) {
1852                         *resetp = 1;
1853                         return -EBUSY;
1854                 }
1855
1856                 for (i = 0; i < 6; i += 2) {
1857                         u32 low, high;
1858
1859                         if (tg3_readphy(tp, MII_TG3_DSP_RW_PORT, &low) ||
1860                             tg3_readphy(tp, MII_TG3_DSP_RW_PORT, &high) ||
1861                             tg3_wait_macro_done(tp)) {
1862                                 *resetp = 1;
1863                                 return -EBUSY;
1864                         }
1865                         low &= 0x7fff;
1866                         high &= 0x000f;
1867                         if (low != test_pat[chan][i] ||
1868                             high != test_pat[chan][i+1]) {
1869                                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000b);
1870                                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x4001);
1871                                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x4005);
1872
1873                                 return -EBUSY;
1874                         }
1875                 }
1876         }
1877
1878         return 0;
1879 }
1880
1881 static int tg3_phy_reset_chanpat(struct tg3 *tp)
1882 {
1883         int chan;
1884
1885         for (chan = 0; chan < 4; chan++) {
1886                 int i;
1887
1888                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
1889                              (chan * 0x2000) | 0x0200);
1890                 tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0002);
1891                 for (i = 0; i < 6; i++)
1892                         tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x000);
1893                 tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0202);
1894                 if (tg3_wait_macro_done(tp))
1895                         return -EBUSY;
1896         }
1897
1898         return 0;
1899 }
1900
1901 static int tg3_phy_reset_5703_4_5(struct tg3 *tp)
1902 {
1903         u32 reg32, phy9_orig;
1904         int retries, do_phy_reset, err;
1905
1906         retries = 10;
1907         do_phy_reset = 1;
1908         do {
1909                 if (do_phy_reset) {
1910                         err = tg3_bmcr_reset(tp);
1911                         if (err)
1912                                 return err;
1913                         do_phy_reset = 0;
1914                 }
1915
1916                 /* Disable transmitter and interrupt.  */
1917                 if (tg3_readphy(tp, MII_TG3_EXT_CTRL, &reg32))
1918                         continue;
1919
1920                 reg32 |= 0x3000;
1921                 tg3_writephy(tp, MII_TG3_EXT_CTRL, reg32);
1922
1923                 /* Set full-duplex, 1000 mbps.  */
1924                 tg3_writephy(tp, MII_BMCR,
1925                              BMCR_FULLDPLX | TG3_BMCR_SPEED1000);
1926
1927                 /* Set to master mode.  */
1928                 if (tg3_readphy(tp, MII_TG3_CTRL, &phy9_orig))
1929                         continue;
1930
1931                 tg3_writephy(tp, MII_TG3_CTRL,
1932                              (MII_TG3_CTRL_AS_MASTER |
1933                               MII_TG3_CTRL_ENABLE_AS_MASTER));
1934
1935                 /* Enable SM_DSP_CLOCK and 6dB.  */
1936                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
1937
1938                 /* Block the PHY control access.  */
1939                 tg3_phydsp_write(tp, 0x8005, 0x0800);
1940
1941                 err = tg3_phy_write_and_check_testpat(tp, &do_phy_reset);
1942                 if (!err)
1943                         break;
1944         } while (--retries);
1945
1946         err = tg3_phy_reset_chanpat(tp);
1947         if (err)
1948                 return err;
1949
1950         tg3_phydsp_write(tp, 0x8005, 0x0000);
1951
1952         tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8200);
1953         tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0000);
1954
1955         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
1956             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
1957                 /* Set Extended packet length bit for jumbo frames */
1958                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4400);
1959         } else {
1960                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
1961         }
1962
1963         tg3_writephy(tp, MII_TG3_CTRL, phy9_orig);
1964
1965         if (!tg3_readphy(tp, MII_TG3_EXT_CTRL, &reg32)) {
1966                 reg32 &= ~0x3000;
1967                 tg3_writephy(tp, MII_TG3_EXT_CTRL, reg32);
1968         } else if (!err)
1969                 err = -EBUSY;
1970
1971         return err;
1972 }
1973
1974 /* This will reset the tigon3 PHY if there is no valid
1975  * link unless the FORCE argument is non-zero.
1976  */
1977 static int tg3_phy_reset(struct tg3 *tp)
1978 {
1979         u32 val, cpmuctrl;
1980         int err;
1981
1982         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
1983                 val = tr32(GRC_MISC_CFG);
1984                 tw32_f(GRC_MISC_CFG, val & ~GRC_MISC_CFG_EPHY_IDDQ);
1985                 udelay(40);
1986         }
1987         err  = tg3_readphy(tp, MII_BMSR, &val);
1988         err |= tg3_readphy(tp, MII_BMSR, &val);
1989         if (err != 0)
1990                 return -EBUSY;
1991
1992         if (netif_running(tp->dev) && netif_carrier_ok(tp->dev)) {
1993                 netif_carrier_off(tp->dev);
1994                 tg3_link_report(tp);
1995         }
1996
1997         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
1998             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
1999             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
2000                 err = tg3_phy_reset_5703_4_5(tp);
2001                 if (err)
2002                         return err;
2003                 goto out;
2004         }
2005
2006         cpmuctrl = 0;
2007         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
2008             GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) {
2009                 cpmuctrl = tr32(TG3_CPMU_CTRL);
2010                 if (cpmuctrl & CPMU_CTRL_GPHY_10MB_RXONLY)
2011                         tw32(TG3_CPMU_CTRL,
2012                              cpmuctrl & ~CPMU_CTRL_GPHY_10MB_RXONLY);
2013         }
2014
2015         err = tg3_bmcr_reset(tp);
2016         if (err)
2017                 return err;
2018
2019         if (cpmuctrl & CPMU_CTRL_GPHY_10MB_RXONLY) {
2020                 val = MII_TG3_DSP_EXP8_AEDW | MII_TG3_DSP_EXP8_REJ2MHz;
2021                 tg3_phydsp_write(tp, MII_TG3_DSP_EXP8, val);
2022
2023                 tw32(TG3_CPMU_CTRL, cpmuctrl);
2024         }
2025
2026         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX ||
2027             GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5761_AX) {
2028                 val = tr32(TG3_CPMU_LSPD_1000MB_CLK);
2029                 if ((val & CPMU_LSPD_1000MB_MACCLK_MASK) ==
2030                     CPMU_LSPD_1000MB_MACCLK_12_5) {
2031                         val &= ~CPMU_LSPD_1000MB_MACCLK_MASK;
2032                         udelay(40);
2033                         tw32_f(TG3_CPMU_LSPD_1000MB_CLK, val);
2034                 }
2035         }
2036
2037         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
2038              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719) &&
2039             (tp->phy_flags & TG3_PHYFLG_MII_SERDES))
2040                 return 0;
2041
2042         tg3_phy_apply_otp(tp);
2043
2044         if (tp->phy_flags & TG3_PHYFLG_ENABLE_APD)
2045                 tg3_phy_toggle_apd(tp, true);
2046         else
2047                 tg3_phy_toggle_apd(tp, false);
2048
2049 out:
2050         if (tp->phy_flags & TG3_PHYFLG_ADC_BUG) {
2051                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
2052                 tg3_phydsp_write(tp, 0x201f, 0x2aaa);
2053                 tg3_phydsp_write(tp, 0x000a, 0x0323);
2054                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
2055         }
2056         if (tp->phy_flags & TG3_PHYFLG_5704_A0_BUG) {
2057                 tg3_writephy(tp, MII_TG3_MISC_SHDW, 0x8d68);
2058                 tg3_writephy(tp, MII_TG3_MISC_SHDW, 0x8d68);
2059         }
2060         if (tp->phy_flags & TG3_PHYFLG_BER_BUG) {
2061                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
2062                 tg3_phydsp_write(tp, 0x000a, 0x310b);
2063                 tg3_phydsp_write(tp, 0x201f, 0x9506);
2064                 tg3_phydsp_write(tp, 0x401f, 0x14e2);
2065                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
2066         } else if (tp->phy_flags & TG3_PHYFLG_JITTER_BUG) {
2067                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
2068                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000a);
2069                 if (tp->phy_flags & TG3_PHYFLG_ADJUST_TRIM) {
2070                         tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x110b);
2071                         tg3_writephy(tp, MII_TG3_TEST1,
2072                                      MII_TG3_TEST1_TRIM_EN | 0x4);
2073                 } else
2074                         tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x010b);
2075                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
2076         }
2077         /* Set Extended packet length bit (bit 14) on all chips that */
2078         /* support jumbo frames */
2079         if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5401) {
2080                 /* Cannot do read-modify-write on 5401 */
2081                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4c20);
2082         } else if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) {
2083                 /* Set bit 14 with read-modify-write to preserve other bits */
2084                 if (!tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0007) &&
2085                     !tg3_readphy(tp, MII_TG3_AUX_CTRL, &val))
2086                         tg3_writephy(tp, MII_TG3_AUX_CTRL, val | 0x4000);
2087         }
2088
2089         /* Set phy register 0x10 bit 0 to high fifo elasticity to support
2090          * jumbo frames transmission.
2091          */
2092         if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) {
2093                 if (!tg3_readphy(tp, MII_TG3_EXT_CTRL, &val))
2094                         tg3_writephy(tp, MII_TG3_EXT_CTRL,
2095                                      val | MII_TG3_EXT_CTRL_FIFO_ELASTIC);
2096         }
2097
2098         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
2099                 /* adjust output voltage */
2100                 tg3_writephy(tp, MII_TG3_FET_PTEST, 0x12);
2101         }
2102
2103         tg3_phy_toggle_automdix(tp, 1);
2104         tg3_phy_set_wirespeed(tp);
2105         return 0;
2106 }
2107
2108 static void tg3_frob_aux_power(struct tg3 *tp)
2109 {
2110         struct tg3 *tp_peer = tp;
2111
2112         /* The GPIOs do something completely different on 57765. */
2113         if ((tp->tg3_flags2 & TG3_FLG2_IS_NIC) == 0 ||
2114             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719 ||
2115             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
2116                 return;
2117
2118         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
2119             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714 ||
2120             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717) {
2121                 struct net_device *dev_peer;
2122
2123                 dev_peer = pci_get_drvdata(tp->pdev_peer);
2124                 /* remove_one() may have been run on the peer. */
2125                 if (!dev_peer)
2126                         tp_peer = tp;
2127                 else
2128                         tp_peer = netdev_priv(dev_peer);
2129         }
2130
2131         if ((tp->tg3_flags & TG3_FLAG_WOL_ENABLE) != 0 ||
2132             (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) != 0 ||
2133             (tp_peer->tg3_flags & TG3_FLAG_WOL_ENABLE) != 0 ||
2134             (tp_peer->tg3_flags & TG3_FLAG_ENABLE_ASF) != 0) {
2135                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
2136                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
2137                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2138                                     (GRC_LCLCTRL_GPIO_OE0 |
2139                                      GRC_LCLCTRL_GPIO_OE1 |
2140                                      GRC_LCLCTRL_GPIO_OE2 |
2141                                      GRC_LCLCTRL_GPIO_OUTPUT0 |
2142                                      GRC_LCLCTRL_GPIO_OUTPUT1),
2143                                     100);
2144                 } else if (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5761 ||
2145                            tp->pdev->device == TG3PCI_DEVICE_TIGON3_5761S) {
2146                         /* The 5761 non-e device swaps GPIO 0 and GPIO 2. */
2147                         u32 grc_local_ctrl = GRC_LCLCTRL_GPIO_OE0 |
2148                                              GRC_LCLCTRL_GPIO_OE1 |
2149                                              GRC_LCLCTRL_GPIO_OE2 |
2150                                              GRC_LCLCTRL_GPIO_OUTPUT0 |
2151                                              GRC_LCLCTRL_GPIO_OUTPUT1 |
2152                                              tp->grc_local_ctrl;
2153                         tw32_wait_f(GRC_LOCAL_CTRL, grc_local_ctrl, 100);
2154
2155                         grc_local_ctrl |= GRC_LCLCTRL_GPIO_OUTPUT2;
2156                         tw32_wait_f(GRC_LOCAL_CTRL, grc_local_ctrl, 100);
2157
2158                         grc_local_ctrl &= ~GRC_LCLCTRL_GPIO_OUTPUT0;
2159                         tw32_wait_f(GRC_LOCAL_CTRL, grc_local_ctrl, 100);
2160                 } else {
2161                         u32 no_gpio2;
2162                         u32 grc_local_ctrl = 0;
2163
2164                         if (tp_peer != tp &&
2165                             (tp_peer->tg3_flags & TG3_FLAG_INIT_COMPLETE) != 0)
2166                                 return;
2167
2168                         /* Workaround to prevent overdrawing Amps. */
2169                         if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
2170                             ASIC_REV_5714) {
2171                                 grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE3;
2172                                 tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2173                                             grc_local_ctrl, 100);
2174                         }
2175
2176                         /* On 5753 and variants, GPIO2 cannot be used. */
2177                         no_gpio2 = tp->nic_sram_data_cfg &
2178                                     NIC_SRAM_DATA_CFG_NO_GPIO2;
2179
2180                         grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE0 |
2181                                          GRC_LCLCTRL_GPIO_OE1 |
2182                                          GRC_LCLCTRL_GPIO_OE2 |
2183                                          GRC_LCLCTRL_GPIO_OUTPUT1 |
2184                                          GRC_LCLCTRL_GPIO_OUTPUT2;
2185                         if (no_gpio2) {
2186                                 grc_local_ctrl &= ~(GRC_LCLCTRL_GPIO_OE2 |
2187                                                     GRC_LCLCTRL_GPIO_OUTPUT2);
2188                         }
2189                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2190                                                     grc_local_ctrl, 100);
2191
2192                         grc_local_ctrl |= GRC_LCLCTRL_GPIO_OUTPUT0;
2193
2194                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2195                                                     grc_local_ctrl, 100);
2196
2197                         if (!no_gpio2) {
2198                                 grc_local_ctrl &= ~GRC_LCLCTRL_GPIO_OUTPUT2;
2199                                 tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2200                                             grc_local_ctrl, 100);
2201                         }
2202                 }
2203         } else {
2204                 if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
2205                     GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701) {
2206                         if (tp_peer != tp &&
2207                             (tp_peer->tg3_flags & TG3_FLAG_INIT_COMPLETE) != 0)
2208                                 return;
2209
2210                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2211                                     (GRC_LCLCTRL_GPIO_OE1 |
2212                                      GRC_LCLCTRL_GPIO_OUTPUT1), 100);
2213
2214                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2215                                     GRC_LCLCTRL_GPIO_OE1, 100);
2216
2217                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2218                                     (GRC_LCLCTRL_GPIO_OE1 |
2219                                      GRC_LCLCTRL_GPIO_OUTPUT1), 100);
2220                 }
2221         }
2222 }
2223
2224 static int tg3_5700_link_polarity(struct tg3 *tp, u32 speed)
2225 {
2226         if (tp->led_ctrl == LED_CTRL_MODE_PHY_2)
2227                 return 1;
2228         else if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5411) {
2229                 if (speed != SPEED_10)
2230                         return 1;
2231         } else if (speed == SPEED_10)
2232                 return 1;
2233
2234         return 0;
2235 }
2236
2237 static int tg3_setup_phy(struct tg3 *, int);
2238
2239 #define RESET_KIND_SHUTDOWN     0
2240 #define RESET_KIND_INIT         1
2241 #define RESET_KIND_SUSPEND      2
2242
2243 static void tg3_write_sig_post_reset(struct tg3 *, int);
2244 static int tg3_halt_cpu(struct tg3 *, u32);
2245
2246 static void tg3_power_down_phy(struct tg3 *tp, bool do_low_power)
2247 {
2248         u32 val;
2249
2250         if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES) {
2251                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
2252                         u32 sg_dig_ctrl = tr32(SG_DIG_CTRL);
2253                         u32 serdes_cfg = tr32(MAC_SERDES_CFG);
2254
2255                         sg_dig_ctrl |=
2256                                 SG_DIG_USING_HW_AUTONEG | SG_DIG_SOFT_RESET;
2257                         tw32(SG_DIG_CTRL, sg_dig_ctrl);
2258                         tw32(MAC_SERDES_CFG, serdes_cfg | (1 << 15));
2259                 }
2260                 return;
2261         }
2262
2263         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
2264                 tg3_bmcr_reset(tp);
2265                 val = tr32(GRC_MISC_CFG);
2266                 tw32_f(GRC_MISC_CFG, val | GRC_MISC_CFG_EPHY_IDDQ);
2267                 udelay(40);
2268                 return;
2269         } else if (tp->phy_flags & TG3_PHYFLG_IS_FET) {
2270                 u32 phytest;
2271                 if (!tg3_readphy(tp, MII_TG3_FET_TEST, &phytest)) {
2272                         u32 phy;
2273
2274                         tg3_writephy(tp, MII_ADVERTISE, 0);
2275                         tg3_writephy(tp, MII_BMCR,
2276                                      BMCR_ANENABLE | BMCR_ANRESTART);
2277
2278                         tg3_writephy(tp, MII_TG3_FET_TEST,
2279                                      phytest | MII_TG3_FET_SHADOW_EN);
2280                         if (!tg3_readphy(tp, MII_TG3_FET_SHDW_AUXMODE4, &phy)) {
2281                                 phy |= MII_TG3_FET_SHDW_AUXMODE4_SBPD;
2282                                 tg3_writephy(tp,
2283                                              MII_TG3_FET_SHDW_AUXMODE4,
2284                                              phy);
2285                         }
2286                         tg3_writephy(tp, MII_TG3_FET_TEST, phytest);
2287                 }
2288                 return;
2289         } else if (do_low_power) {
2290                 tg3_writephy(tp, MII_TG3_EXT_CTRL,
2291                              MII_TG3_EXT_CTRL_FORCE_LED_OFF);
2292
2293                 tg3_writephy(tp, MII_TG3_AUX_CTRL,
2294                              MII_TG3_AUXCTL_SHDWSEL_PWRCTL |
2295                              MII_TG3_AUXCTL_PCTL_100TX_LPWR |
2296                              MII_TG3_AUXCTL_PCTL_SPR_ISOLATE |
2297                              MII_TG3_AUXCTL_PCTL_VREG_11V);
2298         }
2299
2300         /* The PHY should not be powered down on some chips because
2301          * of bugs.
2302          */
2303         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
2304             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
2305             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780 &&
2306              (tp->phy_flags & TG3_PHYFLG_MII_SERDES)))
2307                 return;
2308
2309         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX ||
2310             GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5761_AX) {
2311                 val = tr32(TG3_CPMU_LSPD_1000MB_CLK);
2312                 val &= ~CPMU_LSPD_1000MB_MACCLK_MASK;
2313                 val |= CPMU_LSPD_1000MB_MACCLK_12_5;
2314                 tw32_f(TG3_CPMU_LSPD_1000MB_CLK, val);
2315         }
2316
2317         tg3_writephy(tp, MII_BMCR, BMCR_PDOWN);
2318 }
2319
2320 /* tp->lock is held. */
2321 static int tg3_nvram_lock(struct tg3 *tp)
2322 {
2323         if (tp->tg3_flags & TG3_FLAG_NVRAM) {
2324                 int i;
2325
2326                 if (tp->nvram_lock_cnt == 0) {
2327                         tw32(NVRAM_SWARB, SWARB_REQ_SET1);
2328                         for (i = 0; i < 8000; i++) {
2329                                 if (tr32(NVRAM_SWARB) & SWARB_GNT1)
2330                                         break;
2331                                 udelay(20);
2332                         }
2333                         if (i == 8000) {
2334                                 tw32(NVRAM_SWARB, SWARB_REQ_CLR1);
2335                                 return -ENODEV;
2336                         }
2337                 }
2338                 tp->nvram_lock_cnt++;
2339         }
2340         return 0;
2341 }
2342
2343 /* tp->lock is held. */
2344 static void tg3_nvram_unlock(struct tg3 *tp)
2345 {
2346         if (tp->tg3_flags & TG3_FLAG_NVRAM) {
2347                 if (tp->nvram_lock_cnt > 0)
2348                         tp->nvram_lock_cnt--;
2349                 if (tp->nvram_lock_cnt == 0)
2350                         tw32_f(NVRAM_SWARB, SWARB_REQ_CLR1);
2351         }
2352 }
2353
2354 /* tp->lock is held. */
2355 static void tg3_enable_nvram_access(struct tg3 *tp)
2356 {
2357         if ((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
2358             !(tp->tg3_flags3 & TG3_FLG3_PROTECTED_NVRAM)) {
2359                 u32 nvaccess = tr32(NVRAM_ACCESS);
2360
2361                 tw32(NVRAM_ACCESS, nvaccess | ACCESS_ENABLE);
2362         }
2363 }
2364
2365 /* tp->lock is held. */
2366 static void tg3_disable_nvram_access(struct tg3 *tp)
2367 {
2368         if ((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
2369             !(tp->tg3_flags3 & TG3_FLG3_PROTECTED_NVRAM)) {
2370                 u32 nvaccess = tr32(NVRAM_ACCESS);
2371
2372                 tw32(NVRAM_ACCESS, nvaccess & ~ACCESS_ENABLE);
2373         }
2374 }
2375
2376 static int tg3_nvram_read_using_eeprom(struct tg3 *tp,
2377                                         u32 offset, u32 *val)
2378 {
2379         u32 tmp;
2380         int i;
2381
2382         if (offset > EEPROM_ADDR_ADDR_MASK || (offset % 4) != 0)
2383                 return -EINVAL;
2384
2385         tmp = tr32(GRC_EEPROM_ADDR) & ~(EEPROM_ADDR_ADDR_MASK |
2386                                         EEPROM_ADDR_DEVID_MASK |
2387                                         EEPROM_ADDR_READ);
2388         tw32(GRC_EEPROM_ADDR,
2389              tmp |
2390              (0 << EEPROM_ADDR_DEVID_SHIFT) |
2391              ((offset << EEPROM_ADDR_ADDR_SHIFT) &
2392               EEPROM_ADDR_ADDR_MASK) |
2393              EEPROM_ADDR_READ | EEPROM_ADDR_START);
2394
2395         for (i = 0; i < 1000; i++) {
2396                 tmp = tr32(GRC_EEPROM_ADDR);
2397
2398                 if (tmp & EEPROM_ADDR_COMPLETE)
2399                         break;
2400                 msleep(1);
2401         }
2402         if (!(tmp & EEPROM_ADDR_COMPLETE))
2403                 return -EBUSY;
2404
2405         tmp = tr32(GRC_EEPROM_DATA);
2406
2407         /*
2408          * The data will always be opposite the native endian
2409          * format.  Perform a blind byteswap to compensate.
2410          */
2411         *val = swab32(tmp);
2412
2413         return 0;
2414 }
2415
2416 #define NVRAM_CMD_TIMEOUT 10000
2417
2418 static int tg3_nvram_exec_cmd(struct tg3 *tp, u32 nvram_cmd)
2419 {
2420         int i;
2421
2422         tw32(NVRAM_CMD, nvram_cmd);
2423         for (i = 0; i < NVRAM_CMD_TIMEOUT; i++) {
2424                 udelay(10);
2425                 if (tr32(NVRAM_CMD) & NVRAM_CMD_DONE) {
2426                         udelay(10);
2427                         break;
2428                 }
2429         }
2430
2431         if (i == NVRAM_CMD_TIMEOUT)
2432                 return -EBUSY;
2433
2434         return 0;
2435 }
2436
2437 static u32 tg3_nvram_phys_addr(struct tg3 *tp, u32 addr)
2438 {
2439         if ((tp->tg3_flags & TG3_FLAG_NVRAM) &&
2440             (tp->tg3_flags & TG3_FLAG_NVRAM_BUFFERED) &&
2441             (tp->tg3_flags2 & TG3_FLG2_FLASH) &&
2442            !(tp->tg3_flags3 & TG3_FLG3_NO_NVRAM_ADDR_TRANS) &&
2443             (tp->nvram_jedecnum == JEDEC_ATMEL))
2444
2445                 addr = ((addr / tp->nvram_pagesize) <<
2446                         ATMEL_AT45DB0X1B_PAGE_POS) +
2447                        (addr % tp->nvram_pagesize);
2448
2449         return addr;
2450 }
2451
2452 static u32 tg3_nvram_logical_addr(struct tg3 *tp, u32 addr)
2453 {
2454         if ((tp->tg3_flags & TG3_FLAG_NVRAM) &&
2455             (tp->tg3_flags & TG3_FLAG_NVRAM_BUFFERED) &&
2456             (tp->tg3_flags2 & TG3_FLG2_FLASH) &&
2457            !(tp->tg3_flags3 & TG3_FLG3_NO_NVRAM_ADDR_TRANS) &&
2458             (tp->nvram_jedecnum == JEDEC_ATMEL))
2459
2460                 addr = ((addr >> ATMEL_AT45DB0X1B_PAGE_POS) *
2461                         tp->nvram_pagesize) +
2462                        (addr & ((1 << ATMEL_AT45DB0X1B_PAGE_POS) - 1));
2463
2464         return addr;
2465 }
2466
2467 /* NOTE: Data read in from NVRAM is byteswapped according to
2468  * the byteswapping settings for all other register accesses.
2469  * tg3 devices are BE devices, so on a BE machine, the data
2470  * returned will be exactly as it is seen in NVRAM.  On a LE
2471  * machine, the 32-bit value will be byteswapped.
2472  */
2473 static int tg3_nvram_read(struct tg3 *tp, u32 offset, u32 *val)
2474 {
2475         int ret;
2476
2477         if (!(tp->tg3_flags & TG3_FLAG_NVRAM))
2478                 return tg3_nvram_read_using_eeprom(tp, offset, val);
2479
2480         offset = tg3_nvram_phys_addr(tp, offset);
2481
2482         if (offset > NVRAM_ADDR_MSK)
2483                 return -EINVAL;
2484
2485         ret = tg3_nvram_lock(tp);
2486         if (ret)
2487                 return ret;
2488
2489         tg3_enable_nvram_access(tp);
2490
2491         tw32(NVRAM_ADDR, offset);
2492         ret = tg3_nvram_exec_cmd(tp, NVRAM_CMD_RD | NVRAM_CMD_GO |
2493                 NVRAM_CMD_FIRST | NVRAM_CMD_LAST | NVRAM_CMD_DONE);
2494
2495         if (ret == 0)
2496                 *val = tr32(NVRAM_RDDATA);
2497
2498         tg3_disable_nvram_access(tp);
2499
2500         tg3_nvram_unlock(tp);
2501
2502         return ret;
2503 }
2504
2505 /* Ensures NVRAM data is in bytestream format. */
2506 static int tg3_nvram_read_be32(struct tg3 *tp, u32 offset, __be32 *val)
2507 {
2508         u32 v;
2509         int res = tg3_nvram_read(tp, offset, &v);
2510         if (!res)
2511                 *val = cpu_to_be32(v);
2512         return res;
2513 }
2514
2515 /* tp->lock is held. */
2516 static void __tg3_set_mac_addr(struct tg3 *tp, int skip_mac_1)
2517 {
2518         u32 addr_high, addr_low;
2519         int i;
2520
2521         addr_high = ((tp->dev->dev_addr[0] << 8) |
2522                      tp->dev->dev_addr[1]);
2523         addr_low = ((tp->dev->dev_addr[2] << 24) |
2524                     (tp->dev->dev_addr[3] << 16) |
2525                     (tp->dev->dev_addr[4] <<  8) |
2526                     (tp->dev->dev_addr[5] <<  0));
2527         for (i = 0; i < 4; i++) {
2528                 if (i == 1 && skip_mac_1)
2529                         continue;
2530                 tw32(MAC_ADDR_0_HIGH + (i * 8), addr_high);
2531                 tw32(MAC_ADDR_0_LOW + (i * 8), addr_low);
2532         }
2533
2534         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
2535             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
2536                 for (i = 0; i < 12; i++) {
2537                         tw32(MAC_EXTADDR_0_HIGH + (i * 8), addr_high);
2538                         tw32(MAC_EXTADDR_0_LOW + (i * 8), addr_low);
2539                 }
2540         }
2541
2542         addr_high = (tp->dev->dev_addr[0] +
2543                      tp->dev->dev_addr[1] +
2544                      tp->dev->dev_addr[2] +
2545                      tp->dev->dev_addr[3] +
2546                      tp->dev->dev_addr[4] +
2547                      tp->dev->dev_addr[5]) &
2548                 TX_BACKOFF_SEED_MASK;
2549         tw32(MAC_TX_BACKOFF_SEED, addr_high);
2550 }
2551
2552 static int tg3_set_power_state(struct tg3 *tp, pci_power_t state)
2553 {
2554         u32 misc_host_ctrl;
2555         bool device_should_wake, do_low_power;
2556
2557         /* Make sure register accesses (indirect or otherwise)
2558          * will function correctly.
2559          */
2560         pci_write_config_dword(tp->pdev,
2561                                TG3PCI_MISC_HOST_CTRL,
2562                                tp->misc_host_ctrl);
2563
2564         switch (state) {
2565         case PCI_D0:
2566                 pci_enable_wake(tp->pdev, state, false);
2567                 pci_set_power_state(tp->pdev, PCI_D0);
2568
2569                 /* Switch out of Vaux if it is a NIC */
2570                 if (tp->tg3_flags2 & TG3_FLG2_IS_NIC)
2571                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl, 100);
2572
2573                 return 0;
2574
2575         case PCI_D1:
2576         case PCI_D2:
2577         case PCI_D3hot:
2578                 break;
2579
2580         default:
2581                 netdev_err(tp->dev, "Invalid power state (D%d) requested\n",
2582                            state);
2583                 return -EINVAL;
2584         }
2585
2586         /* Restore the CLKREQ setting. */
2587         if (tp->tg3_flags3 & TG3_FLG3_CLKREQ_BUG) {
2588                 u16 lnkctl;
2589
2590                 pci_read_config_word(tp->pdev,
2591                                      tp->pcie_cap + PCI_EXP_LNKCTL,
2592                                      &lnkctl);
2593                 lnkctl |= PCI_EXP_LNKCTL_CLKREQ_EN;
2594                 pci_write_config_word(tp->pdev,
2595                                       tp->pcie_cap + PCI_EXP_LNKCTL,
2596                                       lnkctl);
2597         }
2598
2599         misc_host_ctrl = tr32(TG3PCI_MISC_HOST_CTRL);
2600         tw32(TG3PCI_MISC_HOST_CTRL,
2601              misc_host_ctrl | MISC_HOST_CTRL_MASK_PCI_INT);
2602
2603         device_should_wake = pci_pme_capable(tp->pdev, state) &&
2604                              device_may_wakeup(&tp->pdev->dev) &&
2605                              (tp->tg3_flags & TG3_FLAG_WOL_ENABLE);
2606
2607         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
2608                 do_low_power = false;
2609                 if ((tp->phy_flags & TG3_PHYFLG_IS_CONNECTED) &&
2610                     !(tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)) {
2611                         struct phy_device *phydev;
2612                         u32 phyid, advertising;
2613
2614                         phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
2615
2616                         tp->phy_flags |= TG3_PHYFLG_IS_LOW_POWER;
2617
2618                         tp->link_config.orig_speed = phydev->speed;
2619                         tp->link_config.orig_duplex = phydev->duplex;
2620                         tp->link_config.orig_autoneg = phydev->autoneg;
2621                         tp->link_config.orig_advertising = phydev->advertising;
2622
2623                         advertising = ADVERTISED_TP |
2624                                       ADVERTISED_Pause |
2625                                       ADVERTISED_Autoneg |
2626                                       ADVERTISED_10baseT_Half;
2627
2628                         if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) ||
2629                             device_should_wake) {
2630                                 if (tp->tg3_flags & TG3_FLAG_WOL_SPEED_100MB)
2631                                         advertising |=
2632                                                 ADVERTISED_100baseT_Half |
2633                                                 ADVERTISED_100baseT_Full |
2634                                                 ADVERTISED_10baseT_Full;
2635                                 else
2636                                         advertising |= ADVERTISED_10baseT_Full;
2637                         }
2638
2639                         phydev->advertising = advertising;
2640
2641                         phy_start_aneg(phydev);
2642
2643                         phyid = phydev->drv->phy_id & phydev->drv->phy_id_mask;
2644                         if (phyid != PHY_ID_BCMAC131) {
2645                                 phyid &= PHY_BCM_OUI_MASK;
2646                                 if (phyid == PHY_BCM_OUI_1 ||
2647                                     phyid == PHY_BCM_OUI_2 ||
2648                                     phyid == PHY_BCM_OUI_3)
2649                                         do_low_power = true;
2650                         }
2651                 }
2652         } else {
2653                 do_low_power = true;
2654
2655                 if (!(tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)) {
2656                         tp->phy_flags |= TG3_PHYFLG_IS_LOW_POWER;
2657                         tp->link_config.orig_speed = tp->link_config.speed;
2658                         tp->link_config.orig_duplex = tp->link_config.duplex;
2659                         tp->link_config.orig_autoneg = tp->link_config.autoneg;
2660                 }
2661
2662                 if (!(tp->phy_flags & TG3_PHYFLG_ANY_SERDES)) {
2663                         tp->link_config.speed = SPEED_10;
2664                         tp->link_config.duplex = DUPLEX_HALF;
2665                         tp->link_config.autoneg = AUTONEG_ENABLE;
2666                         tg3_setup_phy(tp, 0);
2667                 }
2668         }
2669
2670         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
2671                 u32 val;
2672
2673                 val = tr32(GRC_VCPU_EXT_CTRL);
2674                 tw32(GRC_VCPU_EXT_CTRL, val | GRC_VCPU_EXT_CTRL_DISABLE_WOL);
2675         } else if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)) {
2676                 int i;
2677                 u32 val;
2678
2679                 for (i = 0; i < 200; i++) {
2680                         tg3_read_mem(tp, NIC_SRAM_FW_ASF_STATUS_MBOX, &val);
2681                         if (val == ~NIC_SRAM_FIRMWARE_MBOX_MAGIC1)
2682                                 break;
2683                         msleep(1);
2684                 }
2685         }
2686         if (tp->tg3_flags & TG3_FLAG_WOL_CAP)
2687                 tg3_write_mem(tp, NIC_SRAM_WOL_MBOX, WOL_SIGNATURE |
2688                                                      WOL_DRV_STATE_SHUTDOWN |
2689                                                      WOL_DRV_WOL |
2690                                                      WOL_SET_MAGIC_PKT);
2691
2692         if (device_should_wake) {
2693                 u32 mac_mode;
2694
2695                 if (!(tp->phy_flags & TG3_PHYFLG_PHY_SERDES)) {
2696                         if (do_low_power) {
2697                                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x5a);
2698                                 udelay(40);
2699                         }
2700
2701                         if (tp->phy_flags & TG3_PHYFLG_MII_SERDES)
2702                                 mac_mode = MAC_MODE_PORT_MODE_GMII;
2703                         else
2704                                 mac_mode = MAC_MODE_PORT_MODE_MII;
2705
2706                         mac_mode |= tp->mac_mode & MAC_MODE_LINK_POLARITY;
2707                         if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
2708                             ASIC_REV_5700) {
2709                                 u32 speed = (tp->tg3_flags &
2710                                              TG3_FLAG_WOL_SPEED_100MB) ?
2711                                              SPEED_100 : SPEED_10;
2712                                 if (tg3_5700_link_polarity(tp, speed))
2713                                         mac_mode |= MAC_MODE_LINK_POLARITY;
2714                                 else
2715                                         mac_mode &= ~MAC_MODE_LINK_POLARITY;
2716                         }
2717                 } else {
2718                         mac_mode = MAC_MODE_PORT_MODE_TBI;
2719                 }
2720
2721                 if (!(tp->tg3_flags2 & TG3_FLG2_5750_PLUS))
2722                         tw32(MAC_LED_CTRL, tp->led_ctrl);
2723
2724                 mac_mode |= MAC_MODE_MAGIC_PKT_ENABLE;
2725                 if (((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
2726                     !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) &&
2727                     ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) ||
2728                      (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)))
2729                         mac_mode |= MAC_MODE_KEEP_FRAME_IN_WOL;
2730
2731                 if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
2732                         mac_mode |= MAC_MODE_APE_TX_EN |
2733                                     MAC_MODE_APE_RX_EN |
2734                                     MAC_MODE_TDE_ENABLE;
2735
2736                 tw32_f(MAC_MODE, mac_mode);
2737                 udelay(100);
2738
2739                 tw32_f(MAC_RX_MODE, RX_MODE_ENABLE);
2740                 udelay(10);
2741         }
2742
2743         if (!(tp->tg3_flags & TG3_FLAG_WOL_SPEED_100MB) &&
2744             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
2745              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)) {
2746                 u32 base_val;
2747
2748                 base_val = tp->pci_clock_ctrl;
2749                 base_val |= (CLOCK_CTRL_RXCLK_DISABLE |
2750                              CLOCK_CTRL_TXCLK_DISABLE);
2751
2752                 tw32_wait_f(TG3PCI_CLOCK_CTRL, base_val | CLOCK_CTRL_ALTCLK |
2753                             CLOCK_CTRL_PWRDOWN_PLL133, 40);
2754         } else if ((tp->tg3_flags2 & TG3_FLG2_5780_CLASS) ||
2755                    (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) ||
2756                    (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)) {
2757                 /* do nothing */
2758         } else if (!((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
2759                      (tp->tg3_flags & TG3_FLAG_ENABLE_ASF))) {
2760                 u32 newbits1, newbits2;
2761
2762                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
2763                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
2764                         newbits1 = (CLOCK_CTRL_RXCLK_DISABLE |
2765                                     CLOCK_CTRL_TXCLK_DISABLE |
2766                                     CLOCK_CTRL_ALTCLK);
2767                         newbits2 = newbits1 | CLOCK_CTRL_44MHZ_CORE;
2768                 } else if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
2769                         newbits1 = CLOCK_CTRL_625_CORE;
2770                         newbits2 = newbits1 | CLOCK_CTRL_ALTCLK;
2771                 } else {
2772                         newbits1 = CLOCK_CTRL_ALTCLK;
2773                         newbits2 = newbits1 | CLOCK_CTRL_44MHZ_CORE;
2774                 }
2775
2776                 tw32_wait_f(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl | newbits1,
2777                             40);
2778
2779                 tw32_wait_f(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl | newbits2,
2780                             40);
2781
2782                 if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
2783                         u32 newbits3;
2784
2785                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
2786                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
2787                                 newbits3 = (CLOCK_CTRL_RXCLK_DISABLE |
2788                                             CLOCK_CTRL_TXCLK_DISABLE |
2789                                             CLOCK_CTRL_44MHZ_CORE);
2790                         } else {
2791                                 newbits3 = CLOCK_CTRL_44MHZ_CORE;
2792                         }
2793
2794                         tw32_wait_f(TG3PCI_CLOCK_CTRL,
2795                                     tp->pci_clock_ctrl | newbits3, 40);
2796                 }
2797         }
2798
2799         if (!(device_should_wake) &&
2800             !(tp->tg3_flags & TG3_FLAG_ENABLE_ASF))
2801                 tg3_power_down_phy(tp, do_low_power);
2802
2803         tg3_frob_aux_power(tp);
2804
2805         /* Workaround for unstable PLL clock */
2806         if ((GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_AX) ||
2807             (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_BX)) {
2808                 u32 val = tr32(0x7d00);
2809
2810                 val &= ~((1 << 16) | (1 << 4) | (1 << 2) | (1 << 1) | 1);
2811                 tw32(0x7d00, val);
2812                 if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)) {
2813                         int err;
2814
2815                         err = tg3_nvram_lock(tp);
2816                         tg3_halt_cpu(tp, RX_CPU_BASE);
2817                         if (!err)
2818                                 tg3_nvram_unlock(tp);
2819                 }
2820         }
2821
2822         tg3_write_sig_post_reset(tp, RESET_KIND_SHUTDOWN);
2823
2824         if (device_should_wake)
2825                 pci_enable_wake(tp->pdev, state, true);
2826
2827         /* Finally, set the new power state. */
2828         pci_set_power_state(tp->pdev, state);
2829
2830         return 0;
2831 }
2832
2833 static void tg3_aux_stat_to_speed_duplex(struct tg3 *tp, u32 val, u16 *speed, u8 *duplex)
2834 {
2835         switch (val & MII_TG3_AUX_STAT_SPDMASK) {
2836         case MII_TG3_AUX_STAT_10HALF:
2837                 *speed = SPEED_10;
2838                 *duplex = DUPLEX_HALF;
2839                 break;
2840
2841         case MII_TG3_AUX_STAT_10FULL:
2842                 *speed = SPEED_10;
2843                 *duplex = DUPLEX_FULL;
2844                 break;
2845
2846         case MII_TG3_AUX_STAT_100HALF:
2847                 *speed = SPEED_100;
2848                 *duplex = DUPLEX_HALF;
2849                 break;
2850
2851         case MII_TG3_AUX_STAT_100FULL:
2852                 *speed = SPEED_100;
2853                 *duplex = DUPLEX_FULL;
2854                 break;
2855
2856         case MII_TG3_AUX_STAT_1000HALF:
2857                 *speed = SPEED_1000;
2858                 *duplex = DUPLEX_HALF;
2859                 break;
2860
2861         case MII_TG3_AUX_STAT_1000FULL:
2862                 *speed = SPEED_1000;
2863                 *duplex = DUPLEX_FULL;
2864                 break;
2865
2866         default:
2867                 if (tp->phy_flags & TG3_PHYFLG_IS_FET) {
2868                         *speed = (val & MII_TG3_AUX_STAT_100) ? SPEED_100 :
2869                                  SPEED_10;
2870                         *duplex = (val & MII_TG3_AUX_STAT_FULL) ? DUPLEX_FULL :
2871                                   DUPLEX_HALF;
2872                         break;
2873                 }
2874                 *speed = SPEED_INVALID;
2875                 *duplex = DUPLEX_INVALID;
2876                 break;
2877         }
2878 }
2879
2880 static void tg3_phy_copper_begin(struct tg3 *tp)
2881 {
2882         u32 new_adv;
2883         int i;
2884
2885         if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER) {
2886                 /* Entering low power mode.  Disable gigabit and
2887                  * 100baseT advertisements.
2888                  */
2889                 tg3_writephy(tp, MII_TG3_CTRL, 0);
2890
2891                 new_adv = (ADVERTISE_10HALF | ADVERTISE_10FULL |
2892                            ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
2893                 if (tp->tg3_flags & TG3_FLAG_WOL_SPEED_100MB)
2894                         new_adv |= (ADVERTISE_100HALF | ADVERTISE_100FULL);
2895
2896                 tg3_writephy(tp, MII_ADVERTISE, new_adv);
2897         } else if (tp->link_config.speed == SPEED_INVALID) {
2898                 if (tp->phy_flags & TG3_PHYFLG_10_100_ONLY)
2899                         tp->link_config.advertising &=
2900                                 ~(ADVERTISED_1000baseT_Half |
2901                                   ADVERTISED_1000baseT_Full);
2902
2903                 new_adv = ADVERTISE_CSMA;
2904                 if (tp->link_config.advertising & ADVERTISED_10baseT_Half)
2905                         new_adv |= ADVERTISE_10HALF;
2906                 if (tp->link_config.advertising & ADVERTISED_10baseT_Full)
2907                         new_adv |= ADVERTISE_10FULL;
2908                 if (tp->link_config.advertising & ADVERTISED_100baseT_Half)
2909                         new_adv |= ADVERTISE_100HALF;
2910                 if (tp->link_config.advertising & ADVERTISED_100baseT_Full)
2911                         new_adv |= ADVERTISE_100FULL;
2912
2913                 new_adv |= tg3_advert_flowctrl_1000T(tp->link_config.flowctrl);
2914
2915                 tg3_writephy(tp, MII_ADVERTISE, new_adv);
2916
2917                 if (tp->link_config.advertising &
2918                     (ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full)) {
2919                         new_adv = 0;
2920                         if (tp->link_config.advertising & ADVERTISED_1000baseT_Half)
2921                                 new_adv |= MII_TG3_CTRL_ADV_1000_HALF;
2922                         if (tp->link_config.advertising & ADVERTISED_1000baseT_Full)
2923                                 new_adv |= MII_TG3_CTRL_ADV_1000_FULL;
2924                         if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY) &&
2925                             (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
2926                              tp->pci_chip_rev_id == CHIPREV_ID_5701_B0))
2927                                 new_adv |= (MII_TG3_CTRL_AS_MASTER |
2928                                             MII_TG3_CTRL_ENABLE_AS_MASTER);
2929                         tg3_writephy(tp, MII_TG3_CTRL, new_adv);
2930                 } else {
2931                         tg3_writephy(tp, MII_TG3_CTRL, 0);
2932                 }
2933         } else {
2934                 new_adv = tg3_advert_flowctrl_1000T(tp->link_config.flowctrl);
2935                 new_adv |= ADVERTISE_CSMA;
2936
2937                 /* Asking for a specific link mode. */
2938                 if (tp->link_config.speed == SPEED_1000) {
2939                         tg3_writephy(tp, MII_ADVERTISE, new_adv);
2940
2941                         if (tp->link_config.duplex == DUPLEX_FULL)
2942                                 new_adv = MII_TG3_CTRL_ADV_1000_FULL;
2943                         else
2944                                 new_adv = MII_TG3_CTRL_ADV_1000_HALF;
2945                         if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
2946                             tp->pci_chip_rev_id == CHIPREV_ID_5701_B0)
2947                                 new_adv |= (MII_TG3_CTRL_AS_MASTER |
2948                                             MII_TG3_CTRL_ENABLE_AS_MASTER);
2949                 } else {
2950                         if (tp->link_config.speed == SPEED_100) {
2951                                 if (tp->link_config.duplex == DUPLEX_FULL)
2952                                         new_adv |= ADVERTISE_100FULL;
2953                                 else
2954                                         new_adv |= ADVERTISE_100HALF;
2955                         } else {
2956                                 if (tp->link_config.duplex == DUPLEX_FULL)
2957                                         new_adv |= ADVERTISE_10FULL;
2958                                 else
2959                                         new_adv |= ADVERTISE_10HALF;
2960                         }
2961                         tg3_writephy(tp, MII_ADVERTISE, new_adv);
2962
2963                         new_adv = 0;
2964                 }
2965
2966                 tg3_writephy(tp, MII_TG3_CTRL, new_adv);
2967         }
2968
2969         if (tp->phy_flags & TG3_PHYFLG_EEE_CAP) {
2970                 u32 val = 0;
2971
2972                 tw32(TG3_CPMU_EEE_MODE,
2973                      tr32(TG3_CPMU_EEE_MODE) & ~TG3_CPMU_EEEMD_LPI_ENABLE);
2974
2975                 /* Enable SM_DSP clock and tx 6dB coding. */
2976                 val = MII_TG3_AUXCTL_SHDWSEL_AUXCTL |
2977                       MII_TG3_AUXCTL_ACTL_SMDSP_ENA |
2978                       MII_TG3_AUXCTL_ACTL_TX_6DB;
2979                 tg3_writephy(tp, MII_TG3_AUX_CTRL, val);
2980
2981                 if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
2982                      GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765) &&
2983                     !tg3_phydsp_read(tp, MII_TG3_DSP_CH34TP2, &val))
2984                         tg3_phydsp_write(tp, MII_TG3_DSP_CH34TP2,
2985                                          val | MII_TG3_DSP_CH34TP2_HIBW01);
2986
2987                 if (tp->link_config.autoneg == AUTONEG_ENABLE) {
2988                         /* Advertise 100-BaseTX EEE ability */
2989                         if (tp->link_config.advertising &
2990                             (ADVERTISED_100baseT_Half |
2991                              ADVERTISED_100baseT_Full))
2992                                 val |= TG3_CL45_D7_EEEADV_CAP_100TX;
2993                         /* Advertise 1000-BaseT EEE ability */
2994                         if (tp->link_config.advertising &
2995                             (ADVERTISED_1000baseT_Half |
2996                              ADVERTISED_1000baseT_Full))
2997                                 val |= TG3_CL45_D7_EEEADV_CAP_1000T;
2998                 }
2999                 tg3_phy_cl45_write(tp, 0x7, TG3_CL45_D7_EEEADV_CAP, val);
3000
3001                 /* Turn off SM_DSP clock. */
3002                 val = MII_TG3_AUXCTL_SHDWSEL_AUXCTL |
3003                       MII_TG3_AUXCTL_ACTL_TX_6DB;
3004                 tg3_writephy(tp, MII_TG3_AUX_CTRL, val);
3005         }
3006
3007         if (tp->link_config.autoneg == AUTONEG_DISABLE &&
3008             tp->link_config.speed != SPEED_INVALID) {
3009                 u32 bmcr, orig_bmcr;
3010
3011                 tp->link_config.active_speed = tp->link_config.speed;
3012                 tp->link_config.active_duplex = tp->link_config.duplex;
3013
3014                 bmcr = 0;
3015                 switch (tp->link_config.speed) {
3016                 default:
3017                 case SPEED_10:
3018                         break;
3019
3020                 case SPEED_100:
3021                         bmcr |= BMCR_SPEED100;
3022                         break;
3023
3024                 case SPEED_1000:
3025                         bmcr |= TG3_BMCR_SPEED1000;
3026                         break;
3027                 }
3028
3029                 if (tp->link_config.duplex == DUPLEX_FULL)
3030                         bmcr |= BMCR_FULLDPLX;
3031
3032                 if (!tg3_readphy(tp, MII_BMCR, &orig_bmcr) &&
3033                     (bmcr != orig_bmcr)) {
3034                         tg3_writephy(tp, MII_BMCR, BMCR_LOOPBACK);
3035                         for (i = 0; i < 1500; i++) {
3036                                 u32 tmp;
3037
3038                                 udelay(10);
3039                                 if (tg3_readphy(tp, MII_BMSR, &tmp) ||
3040                                     tg3_readphy(tp, MII_BMSR, &tmp))
3041                                         continue;
3042                                 if (!(tmp & BMSR_LSTATUS)) {
3043                                         udelay(40);
3044                                         break;
3045                                 }
3046                         }
3047                         tg3_writephy(tp, MII_BMCR, bmcr);
3048                         udelay(40);
3049                 }
3050         } else {
3051                 tg3_writephy(tp, MII_BMCR,
3052                              BMCR_ANENABLE | BMCR_ANRESTART);
3053         }
3054 }
3055
3056 static int tg3_init_5401phy_dsp(struct tg3 *tp)
3057 {
3058         int err;
3059
3060         /* Turn off tap power management. */
3061         /* Set Extended packet length bit */
3062         err  = tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4c20);
3063
3064         err |= tg3_phydsp_write(tp, 0x0012, 0x1804);
3065         err |= tg3_phydsp_write(tp, 0x0013, 0x1204);
3066         err |= tg3_phydsp_write(tp, 0x8006, 0x0132);
3067         err |= tg3_phydsp_write(tp, 0x8006, 0x0232);
3068         err |= tg3_phydsp_write(tp, 0x201f, 0x0a20);
3069
3070         udelay(40);
3071
3072         return err;
3073 }
3074
3075 static int tg3_copper_is_advertising_all(struct tg3 *tp, u32 mask)
3076 {
3077         u32 adv_reg, all_mask = 0;
3078
3079         if (mask & ADVERTISED_10baseT_Half)
3080                 all_mask |= ADVERTISE_10HALF;
3081         if (mask & ADVERTISED_10baseT_Full)
3082                 all_mask |= ADVERTISE_10FULL;
3083         if (mask & ADVERTISED_100baseT_Half)
3084                 all_mask |= ADVERTISE_100HALF;
3085         if (mask & ADVERTISED_100baseT_Full)
3086                 all_mask |= ADVERTISE_100FULL;
3087
3088         if (tg3_readphy(tp, MII_ADVERTISE, &adv_reg))
3089                 return 0;
3090
3091         if ((adv_reg & all_mask) != all_mask)
3092                 return 0;
3093         if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY)) {
3094                 u32 tg3_ctrl;
3095
3096                 all_mask = 0;
3097                 if (mask & ADVERTISED_1000baseT_Half)
3098                         all_mask |= ADVERTISE_1000HALF;
3099                 if (mask & ADVERTISED_1000baseT_Full)
3100                         all_mask |= ADVERTISE_1000FULL;
3101
3102                 if (tg3_readphy(tp, MII_TG3_CTRL, &tg3_ctrl))
3103                         return 0;
3104
3105                 if ((tg3_ctrl & all_mask) != all_mask)
3106                         return 0;
3107         }
3108         return 1;
3109 }
3110
3111 static int tg3_adv_1000T_flowctrl_ok(struct tg3 *tp, u32 *lcladv, u32 *rmtadv)
3112 {
3113         u32 curadv, reqadv;
3114
3115         if (tg3_readphy(tp, MII_ADVERTISE, lcladv))
3116                 return 1;
3117
3118         curadv = *lcladv & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
3119         reqadv = tg3_advert_flowctrl_1000T(tp->link_config.flowctrl);
3120
3121         if (tp->link_config.active_duplex == DUPLEX_FULL) {
3122                 if (curadv != reqadv)
3123                         return 0;
3124
3125                 if (tp->tg3_flags & TG3_FLAG_PAUSE_AUTONEG)
3126                         tg3_readphy(tp, MII_LPA, rmtadv);
3127         } else {
3128                 /* Reprogram the advertisement register, even if it
3129                  * does not affect the current link.  If the link
3130                  * gets renegotiated in the future, we can save an
3131                  * additional renegotiation cycle by advertising
3132                  * it correctly in the first place.
3133                  */
3134                 if (curadv != reqadv) {
3135                         *lcladv &= ~(ADVERTISE_PAUSE_CAP |
3136                                      ADVERTISE_PAUSE_ASYM);
3137                         tg3_writephy(tp, MII_ADVERTISE, *lcladv | reqadv);
3138                 }
3139         }
3140
3141         return 1;
3142 }
3143
3144 static int tg3_setup_copper_phy(struct tg3 *tp, int force_reset)
3145 {
3146         int current_link_up;
3147         u32 bmsr, val;
3148         u32 lcl_adv, rmt_adv;
3149         u16 current_speed;
3150         u8 current_duplex;
3151         int i, err;
3152
3153         tw32(MAC_EVENT, 0);
3154
3155         tw32_f(MAC_STATUS,
3156              (MAC_STATUS_SYNC_CHANGED |
3157               MAC_STATUS_CFG_CHANGED |
3158               MAC_STATUS_MI_COMPLETION |
3159               MAC_STATUS_LNKSTATE_CHANGED));
3160         udelay(40);
3161
3162         if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
3163                 tw32_f(MAC_MI_MODE,
3164                      (tp->mi_mode & ~MAC_MI_MODE_AUTO_POLL));
3165                 udelay(80);
3166         }
3167
3168         tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x02);
3169
3170         /* Some third-party PHYs need to be reset on link going
3171          * down.
3172          */
3173         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
3174              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
3175              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) &&
3176             netif_carrier_ok(tp->dev)) {
3177                 tg3_readphy(tp, MII_BMSR, &bmsr);
3178                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
3179                     !(bmsr & BMSR_LSTATUS))
3180                         force_reset = 1;
3181         }
3182         if (force_reset)
3183                 tg3_phy_reset(tp);
3184
3185         if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5401) {
3186                 tg3_readphy(tp, MII_BMSR, &bmsr);
3187                 if (tg3_readphy(tp, MII_BMSR, &bmsr) ||
3188                     !(tp->tg3_flags & TG3_FLAG_INIT_COMPLETE))
3189                         bmsr = 0;
3190
3191                 if (!(bmsr & BMSR_LSTATUS)) {
3192                         err = tg3_init_5401phy_dsp(tp);
3193                         if (err)
3194                                 return err;
3195
3196                         tg3_readphy(tp, MII_BMSR, &bmsr);
3197                         for (i = 0; i < 1000; i++) {
3198                                 udelay(10);
3199                                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
3200                                     (bmsr & BMSR_LSTATUS)) {
3201                                         udelay(40);
3202                                         break;
3203                                 }
3204                         }
3205
3206                         if ((tp->phy_id & TG3_PHY_ID_REV_MASK) ==
3207                             TG3_PHY_REV_BCM5401_B0 &&
3208                             !(bmsr & BMSR_LSTATUS) &&
3209                             tp->link_config.active_speed == SPEED_1000) {
3210                                 err = tg3_phy_reset(tp);
3211                                 if (!err)
3212                                         err = tg3_init_5401phy_dsp(tp);
3213                                 if (err)
3214                                         return err;
3215                         }
3216                 }
3217         } else if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
3218                    tp->pci_chip_rev_id == CHIPREV_ID_5701_B0) {
3219                 /* 5701 {A0,B0} CRC bug workaround */
3220                 tg3_writephy(tp, 0x15, 0x0a75);
3221                 tg3_writephy(tp, MII_TG3_MISC_SHDW, 0x8c68);
3222                 tg3_writephy(tp, MII_TG3_MISC_SHDW, 0x8d68);
3223                 tg3_writephy(tp, MII_TG3_MISC_SHDW, 0x8c68);
3224         }
3225
3226         /* Clear pending interrupts... */
3227         tg3_readphy(tp, MII_TG3_ISTAT, &val);
3228         tg3_readphy(tp, MII_TG3_ISTAT, &val);
3229
3230         if (tp->phy_flags & TG3_PHYFLG_USE_MI_INTERRUPT)
3231                 tg3_writephy(tp, MII_TG3_IMASK, ~MII_TG3_INT_LINKCHG);
3232         else if (!(tp->phy_flags & TG3_PHYFLG_IS_FET))
3233                 tg3_writephy(tp, MII_TG3_IMASK, ~0);
3234
3235         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
3236             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
3237                 if (tp->led_ctrl == LED_CTRL_MODE_PHY_1)
3238                         tg3_writephy(tp, MII_TG3_EXT_CTRL,
3239                                      MII_TG3_EXT_CTRL_LNK3_LED_MODE);
3240                 else
3241                         tg3_writephy(tp, MII_TG3_EXT_CTRL, 0);
3242         }
3243
3244         current_link_up = 0;
3245         current_speed = SPEED_INVALID;
3246         current_duplex = DUPLEX_INVALID;
3247
3248         if (tp->phy_flags & TG3_PHYFLG_CAPACITIVE_COUPLING) {
3249                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4007);
3250                 tg3_readphy(tp, MII_TG3_AUX_CTRL, &val);
3251                 if (!(val & (1 << 10))) {
3252                         val |= (1 << 10);
3253                         tg3_writephy(tp, MII_TG3_AUX_CTRL, val);
3254                         goto relink;
3255                 }
3256         }
3257
3258         bmsr = 0;
3259         for (i = 0; i < 100; i++) {
3260                 tg3_readphy(tp, MII_BMSR, &bmsr);
3261                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
3262                     (bmsr & BMSR_LSTATUS))
3263                         break;
3264                 udelay(40);
3265         }
3266
3267         if (bmsr & BMSR_LSTATUS) {
3268                 u32 aux_stat, bmcr;
3269
3270                 tg3_readphy(tp, MII_TG3_AUX_STAT, &aux_stat);
3271                 for (i = 0; i < 2000; i++) {
3272                         udelay(10);
3273                         if (!tg3_readphy(tp, MII_TG3_AUX_STAT, &aux_stat) &&
3274                             aux_stat)
3275                                 break;
3276                 }
3277
3278                 tg3_aux_stat_to_speed_duplex(tp, aux_stat,
3279                                              &current_speed,
3280                                              &current_duplex);
3281
3282                 bmcr = 0;
3283                 for (i = 0; i < 200; i++) {
3284                         tg3_readphy(tp, MII_BMCR, &bmcr);
3285                         if (tg3_readphy(tp, MII_BMCR, &bmcr))
3286                                 continue;
3287                         if (bmcr && bmcr != 0x7fff)
3288                                 break;
3289                         udelay(10);
3290                 }
3291
3292                 lcl_adv = 0;
3293                 rmt_adv = 0;
3294
3295                 tp->link_config.active_speed = current_speed;
3296                 tp->link_config.active_duplex = current_duplex;
3297
3298                 if (tp->link_config.autoneg == AUTONEG_ENABLE) {
3299                         if ((bmcr & BMCR_ANENABLE) &&
3300                             tg3_copper_is_advertising_all(tp,
3301                                                 tp->link_config.advertising)) {
3302                                 if (tg3_adv_1000T_flowctrl_ok(tp, &lcl_adv,
3303                                                                   &rmt_adv))
3304                                         current_link_up = 1;
3305                         }
3306                 } else {
3307                         if (!(bmcr & BMCR_ANENABLE) &&
3308                             tp->link_config.speed == current_speed &&
3309                             tp->link_config.duplex == current_duplex &&
3310                             tp->link_config.flowctrl ==
3311                             tp->link_config.active_flowctrl) {
3312                                 current_link_up = 1;
3313                         }
3314                 }
3315
3316                 if (current_link_up == 1 &&
3317                     tp->link_config.active_duplex == DUPLEX_FULL)
3318                         tg3_setup_flow_control(tp, lcl_adv, rmt_adv);
3319         }
3320
3321 relink:
3322         if (current_link_up == 0 || (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)) {
3323                 tg3_phy_copper_begin(tp);
3324
3325                 tg3_readphy(tp, MII_BMSR, &bmsr);
3326                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
3327                     (bmsr & BMSR_LSTATUS))
3328                         current_link_up = 1;
3329         }
3330
3331         tp->mac_mode &= ~MAC_MODE_PORT_MODE_MASK;
3332         if (current_link_up == 1) {
3333                 if (tp->link_config.active_speed == SPEED_100 ||
3334                     tp->link_config.active_speed == SPEED_10)
3335                         tp->mac_mode |= MAC_MODE_PORT_MODE_MII;
3336                 else
3337                         tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
3338         } else if (tp->phy_flags & TG3_PHYFLG_IS_FET)
3339                 tp->mac_mode |= MAC_MODE_PORT_MODE_MII;
3340         else
3341                 tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
3342
3343         tp->mac_mode &= ~MAC_MODE_HALF_DUPLEX;
3344         if (tp->link_config.active_duplex == DUPLEX_HALF)
3345                 tp->mac_mode |= MAC_MODE_HALF_DUPLEX;
3346
3347         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) {
3348                 if (current_link_up == 1 &&
3349                     tg3_5700_link_polarity(tp, tp->link_config.active_speed))
3350                         tp->mac_mode |= MAC_MODE_LINK_POLARITY;
3351                 else
3352                         tp->mac_mode &= ~MAC_MODE_LINK_POLARITY;
3353         }
3354
3355         /* ??? Without this setting Netgear GA302T PHY does not
3356          * ??? send/receive packets...
3357          */
3358         if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5411 &&
3359             tp->pci_chip_rev_id == CHIPREV_ID_5700_ALTIMA) {
3360                 tp->mi_mode |= MAC_MI_MODE_AUTO_POLL;
3361                 tw32_f(MAC_MI_MODE, tp->mi_mode);
3362                 udelay(80);
3363         }
3364
3365         tw32_f(MAC_MODE, tp->mac_mode);
3366         udelay(40);
3367
3368         tg3_phy_eee_adjust(tp, current_link_up);
3369
3370         if (tp->tg3_flags & TG3_FLAG_USE_LINKCHG_REG) {
3371                 /* Polled via timer. */
3372                 tw32_f(MAC_EVENT, 0);
3373         } else {
3374                 tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
3375         }
3376         udelay(40);
3377
3378         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 &&
3379             current_link_up == 1 &&
3380             tp->link_config.active_speed == SPEED_1000 &&
3381             ((tp->tg3_flags & TG3_FLAG_PCIX_MODE) ||
3382              (tp->tg3_flags & TG3_FLAG_PCI_HIGH_SPEED))) {
3383                 udelay(120);
3384                 tw32_f(MAC_STATUS,
3385                      (MAC_STATUS_SYNC_CHANGED |
3386                       MAC_STATUS_CFG_CHANGED));
3387                 udelay(40);
3388                 tg3_write_mem(tp,
3389                               NIC_SRAM_FIRMWARE_MBOX,
3390                               NIC_SRAM_FIRMWARE_MBOX_MAGIC2);
3391         }
3392
3393         /* Prevent send BD corruption. */
3394         if (tp->tg3_flags3 & TG3_FLG3_CLKREQ_BUG) {
3395                 u16 oldlnkctl, newlnkctl;
3396
3397                 pci_read_config_word(tp->pdev,
3398                                      tp->pcie_cap + PCI_EXP_LNKCTL,
3399                                      &oldlnkctl);
3400                 if (tp->link_config.active_speed == SPEED_100 ||
3401                     tp->link_config.active_speed == SPEED_10)
3402                         newlnkctl = oldlnkctl & ~PCI_EXP_LNKCTL_CLKREQ_EN;
3403                 else
3404                         newlnkctl = oldlnkctl | PCI_EXP_LNKCTL_CLKREQ_EN;
3405                 if (newlnkctl != oldlnkctl)
3406                         pci_write_config_word(tp->pdev,
3407                                               tp->pcie_cap + PCI_EXP_LNKCTL,
3408                                               newlnkctl);
3409         }
3410
3411         if (current_link_up != netif_carrier_ok(tp->dev)) {
3412                 if (current_link_up)
3413                         netif_carrier_on(tp->dev);
3414                 else
3415                         netif_carrier_off(tp->dev);
3416                 tg3_link_report(tp);
3417         }
3418
3419         return 0;
3420 }
3421
3422 struct tg3_fiber_aneginfo {
3423         int state;
3424 #define ANEG_STATE_UNKNOWN              0
3425 #define ANEG_STATE_AN_ENABLE            1
3426 #define ANEG_STATE_RESTART_INIT         2
3427 #define ANEG_STATE_RESTART              3
3428 #define ANEG_STATE_DISABLE_LINK_OK      4
3429 #define ANEG_STATE_ABILITY_DETECT_INIT  5
3430 #define ANEG_STATE_ABILITY_DETECT       6
3431 #define ANEG_STATE_ACK_DETECT_INIT      7
3432 #define ANEG_STATE_ACK_DETECT           8
3433 #define ANEG_STATE_COMPLETE_ACK_INIT    9
3434 #define ANEG_STATE_COMPLETE_ACK         10
3435 #define ANEG_STATE_IDLE_DETECT_INIT     11
3436 #define ANEG_STATE_IDLE_DETECT          12
3437 #define ANEG_STATE_LINK_OK              13
3438 #define ANEG_STATE_NEXT_PAGE_WAIT_INIT  14
3439 #define ANEG_STATE_NEXT_PAGE_WAIT       15
3440
3441         u32 flags;
3442 #define MR_AN_ENABLE            0x00000001
3443 #define MR_RESTART_AN           0x00000002
3444 #define MR_AN_COMPLETE          0x00000004
3445 #define MR_PAGE_RX              0x00000008
3446 #define MR_NP_LOADED            0x00000010
3447 #define MR_TOGGLE_TX            0x00000020
3448 #define MR_LP_ADV_FULL_DUPLEX   0x00000040
3449 #define MR_LP_ADV_HALF_DUPLEX   0x00000080
3450 #define MR_LP_ADV_SYM_PAUSE     0x00000100
3451 #define MR_LP_ADV_ASYM_PAUSE    0x00000200
3452 #define MR_LP_ADV_REMOTE_FAULT1 0x00000400
3453 #define MR_LP_ADV_REMOTE_FAULT2 0x00000800
3454 #define MR_LP_ADV_NEXT_PAGE     0x00001000
3455 #define MR_TOGGLE_RX            0x00002000
3456 #define MR_NP_RX                0x00004000
3457
3458 #define MR_LINK_OK              0x80000000
3459
3460         unsigned long link_time, cur_time;
3461
3462         u32 ability_match_cfg;
3463         int ability_match_count;
3464
3465         char ability_match, idle_match, ack_match;
3466
3467         u32 txconfig, rxconfig;
3468 #define ANEG_CFG_NP             0x00000080
3469 #define ANEG_CFG_ACK            0x00000040
3470 #define ANEG_CFG_RF2            0x00000020
3471 #define ANEG_CFG_RF1            0x00000010
3472 #define ANEG_CFG_PS2            0x00000001
3473 #define ANEG_CFG_PS1            0x00008000
3474 #define ANEG_CFG_HD             0x00004000
3475 #define ANEG_CFG_FD             0x00002000
3476 #define ANEG_CFG_INVAL          0x00001f06
3477
3478 };
3479 #define ANEG_OK         0
3480 #define ANEG_DONE       1
3481 #define ANEG_TIMER_ENAB 2
3482 #define ANEG_FAILED     -1
3483
3484 #define ANEG_STATE_SETTLE_TIME  10000
3485
3486 static int tg3_fiber_aneg_smachine(struct tg3 *tp,
3487                                    struct tg3_fiber_aneginfo *ap)
3488 {
3489         u16 flowctrl;
3490         unsigned long delta;
3491         u32 rx_cfg_reg;
3492         int ret;
3493
3494         if (ap->state == ANEG_STATE_UNKNOWN) {
3495                 ap->rxconfig = 0;
3496                 ap->link_time = 0;
3497                 ap->cur_time = 0;
3498                 ap->ability_match_cfg = 0;
3499                 ap->ability_match_count = 0;
3500                 ap->ability_match = 0;
3501                 ap->idle_match = 0;
3502                 ap->ack_match = 0;
3503         }
3504         ap->cur_time++;
3505
3506         if (tr32(MAC_STATUS) & MAC_STATUS_RCVD_CFG) {
3507                 rx_cfg_reg = tr32(MAC_RX_AUTO_NEG);
3508
3509                 if (rx_cfg_reg != ap->ability_match_cfg) {
3510                         ap->ability_match_cfg = rx_cfg_reg;
3511                         ap->ability_match = 0;
3512                         ap->ability_match_count = 0;
3513                 } else {
3514                         if (++ap->ability_match_count > 1) {
3515                                 ap->ability_match = 1;
3516                                 ap->ability_match_cfg = rx_cfg_reg;
3517                         }
3518                 }
3519                 if (rx_cfg_reg & ANEG_CFG_ACK)
3520                         ap->ack_match = 1;
3521                 else
3522                         ap->ack_match = 0;
3523
3524                 ap->idle_match = 0;
3525         } else {
3526                 ap->idle_match = 1;
3527                 ap->ability_match_cfg = 0;
3528                 ap->ability_match_count = 0;
3529                 ap->ability_match = 0;
3530                 ap->ack_match = 0;
3531
3532                 rx_cfg_reg = 0;
3533         }
3534
3535         ap->rxconfig = rx_cfg_reg;
3536         ret = ANEG_OK;
3537
3538         switch (ap->state) {
3539         case ANEG_STATE_UNKNOWN:
3540                 if (ap->flags & (MR_AN_ENABLE | MR_RESTART_AN))
3541                         ap->state = ANEG_STATE_AN_ENABLE;
3542
3543                 /* fallthru */
3544         case ANEG_STATE_AN_ENABLE:
3545                 ap->flags &= ~(MR_AN_COMPLETE | MR_PAGE_RX);
3546                 if (ap->flags & MR_AN_ENABLE) {
3547                         ap->link_time = 0;
3548                         ap->cur_time = 0;
3549                         ap->ability_match_cfg = 0;
3550                         ap->ability_match_count = 0;
3551                         ap->ability_match = 0;
3552                         ap->idle_match = 0;
3553                         ap->ack_match = 0;
3554
3555                         ap->state = ANEG_STATE_RESTART_INIT;
3556                 } else {
3557                         ap->state = ANEG_STATE_DISABLE_LINK_OK;
3558                 }
3559                 break;
3560
3561         case ANEG_STATE_RESTART_INIT:
3562                 ap->link_time = ap->cur_time;
3563                 ap->flags &= ~(MR_NP_LOADED);
3564                 ap->txconfig = 0;
3565                 tw32(MAC_TX_AUTO_NEG, 0);
3566                 tp->mac_mode |= MAC_MODE_SEND_CONFIGS;
3567                 tw32_f(MAC_MODE, tp->mac_mode);
3568                 udelay(40);
3569
3570                 ret = ANEG_TIMER_ENAB;
3571                 ap->state = ANEG_STATE_RESTART;
3572
3573                 /* fallthru */
3574         case ANEG_STATE_RESTART:
3575                 delta = ap->cur_time - ap->link_time;
3576                 if (delta > ANEG_STATE_SETTLE_TIME)
3577                         ap->state = ANEG_STATE_ABILITY_DETECT_INIT;
3578                 else
3579                         ret = ANEG_TIMER_ENAB;
3580                 break;
3581
3582         case ANEG_STATE_DISABLE_LINK_OK:
3583                 ret = ANEG_DONE;
3584                 break;
3585
3586         case ANEG_STATE_ABILITY_DETECT_INIT:
3587                 ap->flags &= ~(MR_TOGGLE_TX);
3588                 ap->txconfig = ANEG_CFG_FD;
3589                 flowctrl = tg3_advert_flowctrl_1000X(tp->link_config.flowctrl);
3590                 if (flowctrl & ADVERTISE_1000XPAUSE)
3591                         ap->txconfig |= ANEG_CFG_PS1;
3592                 if (flowctrl & ADVERTISE_1000XPSE_ASYM)
3593                         ap->txconfig |= ANEG_CFG_PS2;
3594                 tw32(MAC_TX_AUTO_NEG, ap->txconfig);
3595                 tp->mac_mode |= MAC_MODE_SEND_CONFIGS;
3596                 tw32_f(MAC_MODE, tp->mac_mode);
3597                 udelay(40);
3598
3599                 ap->state = ANEG_STATE_ABILITY_DETECT;
3600                 break;
3601
3602         case ANEG_STATE_ABILITY_DETECT:
3603                 if (ap->ability_match != 0 && ap->rxconfig != 0)
3604                         ap->state = ANEG_STATE_ACK_DETECT_INIT;
3605                 break;
3606
3607         case ANEG_STATE_ACK_DETECT_INIT:
3608                 ap->txconfig |= ANEG_CFG_ACK;
3609                 tw32(MAC_TX_AUTO_NEG, ap->txconfig);
3610                 tp->mac_mode |= MAC_MODE_SEND_CONFIGS;
3611                 tw32_f(MAC_MODE, tp->mac_mode);
3612                 udelay(40);
3613
3614                 ap->state = ANEG_STATE_ACK_DETECT;
3615
3616                 /* fallthru */
3617         case ANEG_STATE_ACK_DETECT:
3618                 if (ap->ack_match != 0) {
3619                         if ((ap->rxconfig & ~ANEG_CFG_ACK) ==
3620                             (ap->ability_match_cfg & ~ANEG_CFG_ACK)) {
3621                                 ap->state = ANEG_STATE_COMPLETE_ACK_INIT;
3622                         } else {
3623                                 ap->state = ANEG_STATE_AN_ENABLE;
3624                         }
3625                 } else if (ap->ability_match != 0 &&
3626                            ap->rxconfig == 0) {
3627                         ap->state = ANEG_STATE_AN_ENABLE;
3628                 }
3629                 break;
3630
3631         case ANEG_STATE_COMPLETE_ACK_INIT:
3632                 if (ap->rxconfig & ANEG_CFG_INVAL) {
3633                         ret = ANEG_FAILED;
3634                         break;
3635                 }
3636                 ap->flags &= ~(MR_LP_ADV_FULL_DUPLEX |
3637                                MR_LP_ADV_HALF_DUPLEX |
3638                                MR_LP_ADV_SYM_PAUSE |
3639                                MR_LP_ADV_ASYM_PAUSE |
3640                                MR_LP_ADV_REMOTE_FAULT1 |
3641                                MR_LP_ADV_REMOTE_FAULT2 |
3642                                MR_LP_ADV_NEXT_PAGE |
3643                                MR_TOGGLE_RX |
3644                                MR_NP_RX);
3645                 if (ap->rxconfig & ANEG_CFG_FD)
3646                         ap->flags |= MR_LP_ADV_FULL_DUPLEX;
3647                 if (ap->rxconfig & ANEG_CFG_HD)
3648                         ap->flags |= MR_LP_ADV_HALF_DUPLEX;
3649                 if (ap->rxconfig & ANEG_CFG_PS1)
3650                         ap->flags |= MR_LP_ADV_SYM_PAUSE;
3651                 if (ap->rxconfig & ANEG_CFG_PS2)
3652                         ap->flags |= MR_LP_ADV_ASYM_PAUSE;
3653                 if (ap->rxconfig & ANEG_CFG_RF1)
3654                         ap->flags |= MR_LP_ADV_REMOTE_FAULT1;
3655                 if (ap->rxconfig & ANEG_CFG_RF2)
3656                         ap->flags |= MR_LP_ADV_REMOTE_FAULT2;
3657                 if (ap->rxconfig & ANEG_CFG_NP)
3658                         ap->flags |= MR_LP_ADV_NEXT_PAGE;
3659
3660                 ap->link_time = ap->cur_time;
3661
3662                 ap->flags ^= (MR_TOGGLE_TX);
3663                 if (ap->rxconfig & 0x0008)
3664                         ap->flags |= MR_TOGGLE_RX;
3665                 if (ap->rxconfig & ANEG_CFG_NP)
3666                         ap->flags |= MR_NP_RX;
3667                 ap->flags |= MR_PAGE_RX;
3668
3669                 ap->state = ANEG_STATE_COMPLETE_ACK;
3670                 ret = ANEG_TIMER_ENAB;
3671                 break;
3672
3673         case ANEG_STATE_COMPLETE_ACK:
3674                 if (ap->ability_match != 0 &&
3675                     ap->rxconfig == 0) {
3676                         ap->state = ANEG_STATE_AN_ENABLE;
3677                         break;
3678                 }
3679                 delta = ap->cur_time - ap->link_time;
3680                 if (delta > ANEG_STATE_SETTLE_TIME) {
3681                         if (!(ap->flags & (MR_LP_ADV_NEXT_PAGE))) {
3682                                 ap->state = ANEG_STATE_IDLE_DETECT_INIT;
3683                         } else {
3684                                 if ((ap->txconfig & ANEG_CFG_NP) == 0 &&
3685                                     !(ap->flags & MR_NP_RX)) {
3686                                         ap->state = ANEG_STATE_IDLE_DETECT_INIT;
3687                                 } else {
3688                                         ret = ANEG_FAILED;
3689                                 }
3690                         }
3691                 }
3692                 break;
3693
3694         case ANEG_STATE_IDLE_DETECT_INIT:
3695                 ap->link_time = ap->cur_time;
3696                 tp->mac_mode &= ~MAC_MODE_SEND_CONFIGS;
3697                 tw32_f(MAC_MODE, tp->mac_mode);
3698                 udelay(40);
3699
3700                 ap->state = ANEG_STATE_IDLE_DETECT;
3701                 ret = ANEG_TIMER_ENAB;
3702                 break;
3703
3704         case ANEG_STATE_IDLE_DETECT:
3705                 if (ap->ability_match != 0 &&
3706                     ap->rxconfig == 0) {
3707                         ap->state = ANEG_STATE_AN_ENABLE;
3708                         break;
3709                 }
3710                 delta = ap->cur_time - ap->link_time;
3711                 if (delta > ANEG_STATE_SETTLE_TIME) {
3712                         /* XXX another gem from the Broadcom driver :( */
3713                         ap->state = ANEG_STATE_LINK_OK;
3714                 }
3715                 break;
3716
3717         case ANEG_STATE_LINK_OK:
3718                 ap->flags |= (MR_AN_COMPLETE | MR_LINK_OK);
3719                 ret = ANEG_DONE;
3720                 break;
3721
3722         case ANEG_STATE_NEXT_PAGE_WAIT_INIT:
3723                 /* ??? unimplemented */
3724                 break;
3725
3726         case ANEG_STATE_NEXT_PAGE_WAIT:
3727                 /* ??? unimplemented */
3728                 break;
3729
3730         default:
3731                 ret = ANEG_FAILED;
3732                 break;
3733         }
3734
3735         return ret;
3736 }
3737
3738 static int fiber_autoneg(struct tg3 *tp, u32 *txflags, u32 *rxflags)
3739 {
3740         int res = 0;
3741         struct tg3_fiber_aneginfo aninfo;
3742         int status = ANEG_FAILED;
3743         unsigned int tick;
3744         u32 tmp;
3745
3746         tw32_f(MAC_TX_AUTO_NEG, 0);
3747
3748         tmp = tp->mac_mode & ~MAC_MODE_PORT_MODE_MASK;
3749         tw32_f(MAC_MODE, tmp | MAC_MODE_PORT_MODE_GMII);
3750         udelay(40);
3751
3752         tw32_f(MAC_MODE, tp->mac_mode | MAC_MODE_SEND_CONFIGS);
3753         udelay(40);
3754
3755         memset(&aninfo, 0, sizeof(aninfo));
3756         aninfo.flags |= MR_AN_ENABLE;
3757         aninfo.state = ANEG_STATE_UNKNOWN;
3758         aninfo.cur_time = 0;
3759         tick = 0;
3760         while (++tick < 195000) {
3761                 status = tg3_fiber_aneg_smachine(tp, &aninfo);
3762                 if (status == ANEG_DONE || status == ANEG_FAILED)
3763                         break;
3764
3765                 udelay(1);
3766         }
3767
3768         tp->mac_mode &= ~MAC_MODE_SEND_CONFIGS;
3769         tw32_f(MAC_MODE, tp->mac_mode);
3770         udelay(40);
3771
3772         *txflags = aninfo.txconfig;
3773         *rxflags = aninfo.flags;
3774
3775         if (status == ANEG_DONE &&
3776             (aninfo.flags & (MR_AN_COMPLETE | MR_LINK_OK |
3777                              MR_LP_ADV_FULL_DUPLEX)))
3778                 res = 1;
3779
3780         return res;
3781 }
3782
3783 static void tg3_init_bcm8002(struct tg3 *tp)
3784 {
3785         u32 mac_status = tr32(MAC_STATUS);
3786         int i;
3787
3788         /* Reset when initting first time or we have a link. */
3789         if ((tp->tg3_flags & TG3_FLAG_INIT_COMPLETE) &&
3790             !(mac_status & MAC_STATUS_PCS_SYNCED))
3791                 return;
3792
3793         /* Set PLL lock range. */
3794         tg3_writephy(tp, 0x16, 0x8007);
3795
3796         /* SW reset */
3797         tg3_writephy(tp, MII_BMCR, BMCR_RESET);
3798
3799         /* Wait for reset to complete. */
3800         /* XXX schedule_timeout() ... */
3801         for (i = 0; i < 500; i++)
3802                 udelay(10);
3803
3804         /* Config mode; select PMA/Ch 1 regs. */
3805         tg3_writephy(tp, 0x10, 0x8411);
3806
3807         /* Enable auto-lock and comdet, select txclk for tx. */
3808         tg3_writephy(tp, 0x11, 0x0a10);
3809
3810         tg3_writephy(tp, 0x18, 0x00a0);
3811         tg3_writephy(tp, 0x16, 0x41ff);
3812
3813         /* Assert and deassert POR. */
3814         tg3_writephy(tp, 0x13, 0x0400);
3815         udelay(40);
3816         tg3_writephy(tp, 0x13, 0x0000);
3817
3818         tg3_writephy(tp, 0x11, 0x0a50);
3819         udelay(40);
3820         tg3_writephy(tp, 0x11, 0x0a10);
3821
3822         /* Wait for signal to stabilize */
3823         /* XXX schedule_timeout() ... */
3824         for (i = 0; i < 15000; i++)
3825                 udelay(10);
3826
3827         /* Deselect the channel register so we can read the PHYID
3828          * later.
3829          */
3830         tg3_writephy(tp, 0x10, 0x8011);
3831 }
3832
3833 static int tg3_setup_fiber_hw_autoneg(struct tg3 *tp, u32 mac_status)
3834 {
3835         u16 flowctrl;
3836         u32 sg_dig_ctrl, sg_dig_status;
3837         u32 serdes_cfg, expected_sg_dig_ctrl;
3838         int workaround, port_a;
3839         int current_link_up;
3840
3841         serdes_cfg = 0;
3842         expected_sg_dig_ctrl = 0;
3843         workaround = 0;
3844         port_a = 1;
3845         current_link_up = 0;
3846
3847         if (tp->pci_chip_rev_id != CHIPREV_ID_5704_A0 &&
3848             tp->pci_chip_rev_id != CHIPREV_ID_5704_A1) {
3849                 workaround = 1;
3850                 if (tr32(TG3PCI_DUAL_MAC_CTRL) & DUAL_MAC_CTRL_ID)
3851                         port_a = 0;
3852
3853                 /* preserve bits 0-11,13,14 for signal pre-emphasis */
3854                 /* preserve bits 20-23 for voltage regulator */
3855                 serdes_cfg = tr32(MAC_SERDES_CFG) & 0x00f06fff;
3856         }
3857
3858         sg_dig_ctrl = tr32(SG_DIG_CTRL);
3859
3860         if (tp->link_config.autoneg != AUTONEG_ENABLE) {
3861                 if (sg_dig_ctrl & SG_DIG_USING_HW_AUTONEG) {
3862                         if (workaround) {
3863                                 u32 val = serdes_cfg;
3864
3865                                 if (port_a)
3866                                         val |= 0xc010000;
3867                                 else
3868                                         val |= 0x4010000;
3869                                 tw32_f(MAC_SERDES_CFG, val);
3870                         }
3871
3872                         tw32_f(SG_DIG_CTRL, SG_DIG_COMMON_SETUP);
3873                 }
3874                 if (mac_status & MAC_STATUS_PCS_SYNCED) {
3875                         tg3_setup_flow_control(tp, 0, 0);
3876                         current_link_up = 1;
3877                 }
3878                 goto out;
3879         }
3880
3881         /* Want auto-negotiation.  */
3882         expected_sg_dig_ctrl = SG_DIG_USING_HW_AUTONEG | SG_DIG_COMMON_SETUP;
3883
3884         flowctrl = tg3_advert_flowctrl_1000X(tp->link_config.flowctrl);
3885         if (flowctrl & ADVERTISE_1000XPAUSE)
3886                 expected_sg_dig_ctrl |= SG_DIG_PAUSE_CAP;
3887         if (flowctrl & ADVERTISE_1000XPSE_ASYM)
3888                 expected_sg_dig_ctrl |= SG_DIG_ASYM_PAUSE;
3889
3890         if (sg_dig_ctrl != expected_sg_dig_ctrl) {
3891                 if ((tp->phy_flags & TG3_PHYFLG_PARALLEL_DETECT) &&
3892                     tp->serdes_counter &&
3893                     ((mac_status & (MAC_STATUS_PCS_SYNCED |
3894                                     MAC_STATUS_RCVD_CFG)) ==
3895                      MAC_STATUS_PCS_SYNCED)) {
3896                         tp->serdes_counter--;
3897                         current_link_up = 1;
3898                         goto out;
3899                 }
3900 restart_autoneg:
3901                 if (workaround)
3902                         tw32_f(MAC_SERDES_CFG, serdes_cfg | 0xc011000);
3903                 tw32_f(SG_DIG_CTRL, expected_sg_dig_ctrl | SG_DIG_SOFT_RESET);
3904                 udelay(5);
3905                 tw32_f(SG_DIG_CTRL, expected_sg_dig_ctrl);
3906
3907                 tp->serdes_counter = SERDES_AN_TIMEOUT_5704S;
3908                 tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
3909         } else if (mac_status & (MAC_STATUS_PCS_SYNCED |
3910                                  MAC_STATUS_SIGNAL_DET)) {
3911                 sg_dig_status = tr32(SG_DIG_STATUS);
3912                 mac_status = tr32(MAC_STATUS);
3913
3914                 if ((sg_dig_status & SG_DIG_AUTONEG_COMPLETE) &&
3915                     (mac_status & MAC_STATUS_PCS_SYNCED)) {
3916                         u32 local_adv = 0, remote_adv = 0;
3917
3918                         if (sg_dig_ctrl & SG_DIG_PAUSE_CAP)
3919                                 local_adv |= ADVERTISE_1000XPAUSE;
3920                         if (sg_dig_ctrl & SG_DIG_ASYM_PAUSE)
3921                                 local_adv |= ADVERTISE_1000XPSE_ASYM;
3922
3923                         if (sg_dig_status & SG_DIG_PARTNER_PAUSE_CAPABLE)
3924                                 remote_adv |= LPA_1000XPAUSE;
3925                         if (sg_dig_status & SG_DIG_PARTNER_ASYM_PAUSE)
3926                                 remote_adv |= LPA_1000XPAUSE_ASYM;
3927
3928                         tg3_setup_flow_control(tp, local_adv, remote_adv);
3929                         current_link_up = 1;
3930                         tp->serdes_counter = 0;
3931                         tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
3932                 } else if (!(sg_dig_status & SG_DIG_AUTONEG_COMPLETE)) {
3933                         if (tp->serdes_counter)
3934                                 tp->serdes_counter--;
3935                         else {
3936                                 if (workaround) {
3937                                         u32 val = serdes_cfg;
3938
3939                                         if (port_a)
3940                                                 val |= 0xc010000;
3941                                         else
3942                                                 val |= 0x4010000;
3943
3944                                         tw32_f(MAC_SERDES_CFG, val);
3945                                 }
3946
3947                                 tw32_f(SG_DIG_CTRL, SG_DIG_COMMON_SETUP);
3948                                 udelay(40);
3949
3950                                 /* Link parallel detection - link is up */
3951                                 /* only if we have PCS_SYNC and not */
3952                                 /* receiving config code words */
3953                                 mac_status = tr32(MAC_STATUS);
3954                                 if ((mac_status & MAC_STATUS_PCS_SYNCED) &&
3955                                     !(mac_status & MAC_STATUS_RCVD_CFG)) {
3956                                         tg3_setup_flow_control(tp, 0, 0);
3957                                         current_link_up = 1;
3958                                         tp->phy_flags |=
3959                                                 TG3_PHYFLG_PARALLEL_DETECT;
3960                                         tp->serdes_counter =
3961                                                 SERDES_PARALLEL_DET_TIMEOUT;
3962                                 } else
3963                                         goto restart_autoneg;
3964                         }
3965                 }
3966         } else {
3967                 tp->serdes_counter = SERDES_AN_TIMEOUT_5704S;
3968                 tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
3969         }
3970
3971 out:
3972         return current_link_up;
3973 }
3974
3975 static int tg3_setup_fiber_by_hand(struct tg3 *tp, u32 mac_status)
3976 {
3977         int current_link_up = 0;
3978
3979         if (!(mac_status & MAC_STATUS_PCS_SYNCED))
3980                 goto out;
3981
3982         if (tp->link_config.autoneg == AUTONEG_ENABLE) {
3983                 u32 txflags, rxflags;
3984                 int i;
3985
3986                 if (fiber_autoneg(tp, &txflags, &rxflags)) {
3987                         u32 local_adv = 0, remote_adv = 0;
3988
3989                         if (txflags & ANEG_CFG_PS1)
3990                                 local_adv |= ADVERTISE_1000XPAUSE;
3991                         if (txflags & ANEG_CFG_PS2)
3992                                 local_adv |= ADVERTISE_1000XPSE_ASYM;
3993
3994                         if (rxflags & MR_LP_ADV_SYM_PAUSE)
3995                                 remote_adv |= LPA_1000XPAUSE;
3996                         if (rxflags & MR_LP_ADV_ASYM_PAUSE)
3997                                 remote_adv |= LPA_1000XPAUSE_ASYM;
3998
3999                         tg3_setup_flow_control(tp, local_adv, remote_adv);
4000
4001                         current_link_up = 1;
4002                 }
4003                 for (i = 0; i < 30; i++) {
4004                         udelay(20);
4005                         tw32_f(MAC_STATUS,
4006                                (MAC_STATUS_SYNC_CHANGED |
4007                                 MAC_STATUS_CFG_CHANGED));
4008                         udelay(40);
4009                         if ((tr32(MAC_STATUS) &
4010                              (MAC_STATUS_SYNC_CHANGED |
4011                               MAC_STATUS_CFG_CHANGED)) == 0)
4012                                 break;
4013                 }
4014
4015                 mac_status = tr32(MAC_STATUS);
4016                 if (current_link_up == 0 &&
4017                     (mac_status & MAC_STATUS_PCS_SYNCED) &&
4018                     !(mac_status & MAC_STATUS_RCVD_CFG))
4019                         current_link_up = 1;
4020         } else {
4021                 tg3_setup_flow_control(tp, 0, 0);
4022
4023                 /* Forcing 1000FD link up. */
4024                 current_link_up = 1;
4025
4026                 tw32_f(MAC_MODE, (tp->mac_mode | MAC_MODE_SEND_CONFIGS));
4027                 udelay(40);
4028
4029                 tw32_f(MAC_MODE, tp->mac_mode);
4030                 udelay(40);
4031         }
4032
4033 out:
4034         return current_link_up;
4035 }
4036
4037 static int tg3_setup_fiber_phy(struct tg3 *tp, int force_reset)
4038 {
4039         u32 orig_pause_cfg;
4040         u16 orig_active_speed;
4041         u8 orig_active_duplex;
4042         u32 mac_status;
4043         int current_link_up;
4044         int i;
4045
4046         orig_pause_cfg = tp->link_config.active_flowctrl;
4047         orig_active_speed = tp->link_config.active_speed;
4048         orig_active_duplex = tp->link_config.active_duplex;
4049
4050         if (!(tp->tg3_flags2 & TG3_FLG2_HW_AUTONEG) &&
4051             netif_carrier_ok(tp->dev) &&
4052             (tp->tg3_flags & TG3_FLAG_INIT_COMPLETE)) {
4053                 mac_status = tr32(MAC_STATUS);
4054                 mac_status &= (MAC_STATUS_PCS_SYNCED |
4055                                MAC_STATUS_SIGNAL_DET |
4056                                MAC_STATUS_CFG_CHANGED |
4057                                MAC_STATUS_RCVD_CFG);
4058                 if (mac_status == (MAC_STATUS_PCS_SYNCED |
4059                                    MAC_STATUS_SIGNAL_DET)) {
4060                         tw32_f(MAC_STATUS, (MAC_STATUS_SYNC_CHANGED |
4061                                             MAC_STATUS_CFG_CHANGED));
4062                         return 0;
4063                 }
4064         }
4065
4066         tw32_f(MAC_TX_AUTO_NEG, 0);
4067
4068         tp->mac_mode &= ~(MAC_MODE_PORT_MODE_MASK | MAC_MODE_HALF_DUPLEX);
4069         tp->mac_mode |= MAC_MODE_PORT_MODE_TBI;
4070         tw32_f(MAC_MODE, tp->mac_mode);
4071         udelay(40);
4072
4073         if (tp->phy_id == TG3_PHY_ID_BCM8002)
4074                 tg3_init_bcm8002(tp);
4075
4076         /* Enable link change event even when serdes polling.  */
4077         tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
4078         udelay(40);
4079
4080         current_link_up = 0;
4081         mac_status = tr32(MAC_STATUS);
4082
4083         if (tp->tg3_flags2 & TG3_FLG2_HW_AUTONEG)
4084                 current_link_up = tg3_setup_fiber_hw_autoneg(tp, mac_status);
4085         else
4086                 current_link_up = tg3_setup_fiber_by_hand(tp, mac_status);
4087
4088         tp->napi[0].hw_status->status =
4089                 (SD_STATUS_UPDATED |
4090                  (tp->napi[0].hw_status->status & ~SD_STATUS_LINK_CHG));
4091
4092         for (i = 0; i < 100; i++) {
4093                 tw32_f(MAC_STATUS, (MAC_STATUS_SYNC_CHANGED |
4094                                     MAC_STATUS_CFG_CHANGED));
4095                 udelay(5);
4096                 if ((tr32(MAC_STATUS) & (MAC_STATUS_SYNC_CHANGED |
4097                                          MAC_STATUS_CFG_CHANGED |
4098                                          MAC_STATUS_LNKSTATE_CHANGED)) == 0)
4099                         break;
4100         }
4101
4102         mac_status = tr32(MAC_STATUS);
4103         if ((mac_status & MAC_STATUS_PCS_SYNCED) == 0) {
4104                 current_link_up = 0;
4105                 if (tp->link_config.autoneg == AUTONEG_ENABLE &&
4106                     tp->serdes_counter == 0) {
4107                         tw32_f(MAC_MODE, (tp->mac_mode |
4108                                           MAC_MODE_SEND_CONFIGS));
4109                         udelay(1);
4110                         tw32_f(MAC_MODE, tp->mac_mode);
4111                 }
4112         }
4113
4114         if (current_link_up == 1) {
4115                 tp->link_config.active_speed = SPEED_1000;
4116                 tp->link_config.active_duplex = DUPLEX_FULL;
4117                 tw32(MAC_LED_CTRL, (tp->led_ctrl |
4118                                     LED_CTRL_LNKLED_OVERRIDE |
4119                                     LED_CTRL_1000MBPS_ON));
4120         } else {
4121                 tp->link_config.active_speed = SPEED_INVALID;
4122                 tp->link_config.active_duplex = DUPLEX_INVALID;
4123                 tw32(MAC_LED_CTRL, (tp->led_ctrl |
4124                                     LED_CTRL_LNKLED_OVERRIDE |
4125                                     LED_CTRL_TRAFFIC_OVERRIDE));
4126         }
4127
4128         if (current_link_up != netif_carrier_ok(tp->dev)) {
4129                 if (current_link_up)
4130                         netif_carrier_on(tp->dev);
4131                 else
4132                         netif_carrier_off(tp->dev);
4133                 tg3_link_report(tp);
4134         } else {
4135                 u32 now_pause_cfg = tp->link_config.active_flowctrl;
4136                 if (orig_pause_cfg != now_pause_cfg ||
4137                     orig_active_speed != tp->link_config.active_speed ||
4138                     orig_active_duplex != tp->link_config.active_duplex)
4139                         tg3_link_report(tp);
4140         }
4141
4142         return 0;
4143 }
4144
4145 static int tg3_setup_fiber_mii_phy(struct tg3 *tp, int force_reset)
4146 {
4147         int current_link_up, err = 0;
4148         u32 bmsr, bmcr;
4149         u16 current_speed;
4150         u8 current_duplex;
4151         u32 local_adv, remote_adv;
4152
4153         tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
4154         tw32_f(MAC_MODE, tp->mac_mode);
4155         udelay(40);
4156
4157         tw32(MAC_EVENT, 0);
4158
4159         tw32_f(MAC_STATUS,
4160              (MAC_STATUS_SYNC_CHANGED |
4161               MAC_STATUS_CFG_CHANGED |
4162               MAC_STATUS_MI_COMPLETION |
4163               MAC_STATUS_LNKSTATE_CHANGED));
4164         udelay(40);
4165
4166         if (force_reset)
4167                 tg3_phy_reset(tp);
4168
4169         current_link_up = 0;
4170         current_speed = SPEED_INVALID;
4171         current_duplex = DUPLEX_INVALID;
4172
4173         err |= tg3_readphy(tp, MII_BMSR, &bmsr);
4174         err |= tg3_readphy(tp, MII_BMSR, &bmsr);
4175         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714) {
4176                 if (tr32(MAC_TX_STATUS) & TX_STATUS_LINK_UP)
4177                         bmsr |= BMSR_LSTATUS;
4178                 else
4179                         bmsr &= ~BMSR_LSTATUS;
4180         }
4181
4182         err |= tg3_readphy(tp, MII_BMCR, &bmcr);
4183
4184         if ((tp->link_config.autoneg == AUTONEG_ENABLE) && !force_reset &&
4185             (tp->phy_flags & TG3_PHYFLG_PARALLEL_DETECT)) {
4186                 /* do nothing, just check for link up at the end */
4187         } else if (tp->link_config.autoneg == AUTONEG_ENABLE) {
4188                 u32 adv, new_adv;
4189
4190                 err |= tg3_readphy(tp, MII_ADVERTISE, &adv);
4191                 new_adv = adv & ~(ADVERTISE_1000XFULL | ADVERTISE_1000XHALF |
4192                                   ADVERTISE_1000XPAUSE |
4193                                   ADVERTISE_1000XPSE_ASYM |
4194                                   ADVERTISE_SLCT);
4195
4196                 new_adv |= tg3_advert_flowctrl_1000X(tp->link_config.flowctrl);
4197
4198                 if (tp->link_config.advertising & ADVERTISED_1000baseT_Half)
4199                         new_adv |= ADVERTISE_1000XHALF;
4200                 if (tp->link_config.advertising & ADVERTISED_1000baseT_Full)
4201                         new_adv |= ADVERTISE_1000XFULL;
4202
4203                 if ((new_adv != adv) || !(bmcr & BMCR_ANENABLE)) {
4204                         tg3_writephy(tp, MII_ADVERTISE, new_adv);
4205                         bmcr |= BMCR_ANENABLE | BMCR_ANRESTART;
4206                         tg3_writephy(tp, MII_BMCR, bmcr);
4207
4208                         tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
4209                         tp->serdes_counter = SERDES_AN_TIMEOUT_5714S;
4210                         tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
4211
4212                         return err;
4213                 }
4214         } else {
4215                 u32 new_bmcr;
4216
4217                 bmcr &= ~BMCR_SPEED1000;
4218                 new_bmcr = bmcr & ~(BMCR_ANENABLE | BMCR_FULLDPLX);
4219
4220                 if (tp->link_config.duplex == DUPLEX_FULL)
4221                         new_bmcr |= BMCR_FULLDPLX;
4222
4223                 if (new_bmcr != bmcr) {
4224                         /* BMCR_SPEED1000 is a reserved bit that needs
4225                          * to be set on write.
4226                          */
4227                         new_bmcr |= BMCR_SPEED1000;
4228
4229                         /* Force a linkdown */
4230                         if (netif_carrier_ok(tp->dev)) {
4231                                 u32 adv;
4232
4233                                 err |= tg3_readphy(tp, MII_ADVERTISE, &adv);
4234                                 adv &= ~(ADVERTISE_1000XFULL |
4235                                          ADVERTISE_1000XHALF |
4236                                          ADVERTISE_SLCT);
4237                                 tg3_writephy(tp, MII_ADVERTISE, adv);
4238                                 tg3_writephy(tp, MII_BMCR, bmcr |
4239                                                            BMCR_ANRESTART |
4240                                                            BMCR_ANENABLE);
4241                                 udelay(10);
4242                                 netif_carrier_off(tp->dev);
4243                         }
4244                         tg3_writephy(tp, MII_BMCR, new_bmcr);
4245                         bmcr = new_bmcr;
4246                         err |= tg3_readphy(tp, MII_BMSR, &bmsr);
4247                         err |= tg3_readphy(tp, MII_BMSR, &bmsr);
4248                         if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
4249                             ASIC_REV_5714) {
4250                                 if (tr32(MAC_TX_STATUS) & TX_STATUS_LINK_UP)
4251                                         bmsr |= BMSR_LSTATUS;
4252                                 else
4253                                         bmsr &= ~BMSR_LSTATUS;
4254                         }
4255                         tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
4256                 }
4257         }
4258
4259         if (bmsr & BMSR_LSTATUS) {
4260                 current_speed = SPEED_1000;
4261                 current_link_up = 1;
4262                 if (bmcr & BMCR_FULLDPLX)
4263                         current_duplex = DUPLEX_FULL;
4264                 else
4265                         current_duplex = DUPLEX_HALF;
4266
4267                 local_adv = 0;
4268                 remote_adv = 0;
4269
4270                 if (bmcr & BMCR_ANENABLE) {
4271                         u32 common;
4272
4273                         err |= tg3_readphy(tp, MII_ADVERTISE, &local_adv);
4274                         err |= tg3_readphy(tp, MII_LPA, &remote_adv);
4275                         common = local_adv & remote_adv;
4276                         if (common & (ADVERTISE_1000XHALF |
4277                                       ADVERTISE_1000XFULL)) {
4278                                 if (common & ADVERTISE_1000XFULL)
4279                                         current_duplex = DUPLEX_FULL;
4280                                 else
4281                                         current_duplex = DUPLEX_HALF;
4282                         } else if (!(tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
4283                                 /* Link is up via parallel detect */
4284                         } else {
4285                                 current_link_up = 0;
4286                         }
4287                 }
4288         }
4289
4290         if (current_link_up == 1 && current_duplex == DUPLEX_FULL)
4291                 tg3_setup_flow_control(tp, local_adv, remote_adv);
4292
4293         tp->mac_mode &= ~MAC_MODE_HALF_DUPLEX;
4294         if (tp->link_config.active_duplex == DUPLEX_HALF)
4295                 tp->mac_mode |= MAC_MODE_HALF_DUPLEX;
4296
4297         tw32_f(MAC_MODE, tp->mac_mode);
4298         udelay(40);
4299
4300         tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
4301
4302         tp->link_config.active_speed = current_speed;
4303         tp->link_config.active_duplex = current_duplex;
4304
4305         if (current_link_up != netif_carrier_ok(tp->dev)) {
4306                 if (current_link_up)
4307                         netif_carrier_on(tp->dev);
4308                 else {
4309                         netif_carrier_off(tp->dev);
4310                         tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
4311                 }
4312                 tg3_link_report(tp);
4313         }
4314         return err;
4315 }
4316
4317 static void tg3_serdes_parallel_detect(struct tg3 *tp)
4318 {
4319         if (tp->serdes_counter) {
4320                 /* Give autoneg time to complete. */
4321                 tp->serdes_counter--;
4322                 return;
4323         }
4324
4325         if (!netif_carrier_ok(tp->dev) &&
4326             (tp->link_config.autoneg == AUTONEG_ENABLE)) {
4327                 u32 bmcr;
4328
4329                 tg3_readphy(tp, MII_BMCR, &bmcr);
4330                 if (bmcr & BMCR_ANENABLE) {
4331                         u32 phy1, phy2;
4332
4333                         /* Select shadow register 0x1f */
4334                         tg3_writephy(tp, MII_TG3_MISC_SHDW, 0x7c00);
4335                         tg3_readphy(tp, MII_TG3_MISC_SHDW, &phy1);
4336
4337                         /* Select expansion interrupt status register */
4338                         tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
4339                                          MII_TG3_DSP_EXP1_INT_STAT);
4340                         tg3_readphy(tp, MII_TG3_DSP_RW_PORT, &phy2);
4341                         tg3_readphy(tp, MII_TG3_DSP_RW_PORT, &phy2);
4342
4343                         if ((phy1 & 0x10) && !(phy2 & 0x20)) {
4344                                 /* We have signal detect and not receiving
4345                                  * config code words, link is up by parallel
4346                                  * detection.
4347                                  */
4348
4349                                 bmcr &= ~BMCR_ANENABLE;
4350                                 bmcr |= BMCR_SPEED1000 | BMCR_FULLDPLX;
4351                                 tg3_writephy(tp, MII_BMCR, bmcr);
4352                                 tp->phy_flags |= TG3_PHYFLG_PARALLEL_DETECT;
4353                         }
4354                 }
4355         } else if (netif_carrier_ok(tp->dev) &&
4356                    (tp->link_config.autoneg == AUTONEG_ENABLE) &&
4357                    (tp->phy_flags & TG3_PHYFLG_PARALLEL_DETECT)) {
4358                 u32 phy2;
4359
4360                 /* Select expansion interrupt status register */
4361                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
4362                                  MII_TG3_DSP_EXP1_INT_STAT);
4363                 tg3_readphy(tp, MII_TG3_DSP_RW_PORT, &phy2);
4364                 if (phy2 & 0x20) {
4365                         u32 bmcr;
4366
4367                         /* Config code words received, turn on autoneg. */
4368                         tg3_readphy(tp, MII_BMCR, &bmcr);
4369                         tg3_writephy(tp, MII_BMCR, bmcr | BMCR_ANENABLE);
4370
4371                         tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
4372
4373                 }
4374         }
4375 }
4376
4377 static int tg3_setup_phy(struct tg3 *tp, int force_reset)
4378 {
4379         int err;
4380
4381         if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES)
4382                 err = tg3_setup_fiber_phy(tp, force_reset);
4383         else if (tp->phy_flags & TG3_PHYFLG_MII_SERDES)
4384                 err = tg3_setup_fiber_mii_phy(tp, force_reset);
4385         else
4386                 err = tg3_setup_copper_phy(tp, force_reset);
4387
4388         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX) {
4389                 u32 val, scale;
4390
4391                 val = tr32(TG3_CPMU_CLCK_STAT) & CPMU_CLCK_STAT_MAC_CLCK_MASK;
4392                 if (val == CPMU_CLCK_STAT_MAC_CLCK_62_5)
4393                         scale = 65;
4394                 else if (val == CPMU_CLCK_STAT_MAC_CLCK_6_25)
4395                         scale = 6;
4396                 else
4397                         scale = 12;
4398
4399                 val = tr32(GRC_MISC_CFG) & ~GRC_MISC_CFG_PRESCALAR_MASK;
4400                 val |= (scale << GRC_MISC_CFG_PRESCALAR_SHIFT);
4401                 tw32(GRC_MISC_CFG, val);
4402         }
4403
4404         if (tp->link_config.active_speed == SPEED_1000 &&
4405             tp->link_config.active_duplex == DUPLEX_HALF)
4406                 tw32(MAC_TX_LENGTHS,
4407                      ((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
4408                       (6 << TX_LENGTHS_IPG_SHIFT) |
4409                       (0xff << TX_LENGTHS_SLOT_TIME_SHIFT)));
4410         else
4411                 tw32(MAC_TX_LENGTHS,
4412                      ((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
4413                       (6 << TX_LENGTHS_IPG_SHIFT) |
4414                       (32 << TX_LENGTHS_SLOT_TIME_SHIFT)));
4415
4416         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
4417                 if (netif_carrier_ok(tp->dev)) {
4418                         tw32(HOSTCC_STAT_COAL_TICKS,
4419                              tp->coal.stats_block_coalesce_usecs);
4420                 } else {
4421                         tw32(HOSTCC_STAT_COAL_TICKS, 0);
4422                 }
4423         }
4424
4425         if (tp->tg3_flags & TG3_FLAG_ASPM_WORKAROUND) {
4426                 u32 val = tr32(PCIE_PWR_MGMT_THRESH);
4427                 if (!netif_carrier_ok(tp->dev))
4428                         val = (val & ~PCIE_PWR_MGMT_L1_THRESH_MSK) |
4429                               tp->pwrmgmt_thresh;
4430                 else
4431                         val |= PCIE_PWR_MGMT_L1_THRESH_MSK;
4432                 tw32(PCIE_PWR_MGMT_THRESH, val);
4433         }
4434
4435         return err;
4436 }
4437
4438 static inline int tg3_irq_sync(struct tg3 *tp)
4439 {
4440         return tp->irq_sync;
4441 }
4442
4443 /* This is called whenever we suspect that the system chipset is re-
4444  * ordering the sequence of MMIO to the tx send mailbox. The symptom
4445  * is bogus tx completions. We try to recover by setting the
4446  * TG3_FLAG_MBOX_WRITE_REORDER flag and resetting the chip later
4447  * in the workqueue.
4448  */
4449 static void tg3_tx_recover(struct tg3 *tp)
4450 {
4451         BUG_ON((tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER) ||
4452                tp->write32_tx_mbox == tg3_write_indirect_mbox);
4453
4454         netdev_warn(tp->dev,
4455                     "The system may be re-ordering memory-mapped I/O "
4456                     "cycles to the network device, attempting to recover. "
4457                     "Please report the problem to the driver maintainer "
4458                     "and include system chipset information.\n");
4459
4460         spin_lock(&tp->lock);
4461         tp->tg3_flags |= TG3_FLAG_TX_RECOVERY_PENDING;
4462         spin_unlock(&tp->lock);
4463 }
4464
4465 static inline u32 tg3_tx_avail(struct tg3_napi *tnapi)
4466 {
4467         /* Tell compiler to fetch tx indices from memory. */
4468         barrier();
4469         return tnapi->tx_pending -
4470                ((tnapi->tx_prod - tnapi->tx_cons) & (TG3_TX_RING_SIZE - 1));
4471 }
4472
4473 /* Tigon3 never reports partial packet sends.  So we do not
4474  * need special logic to handle SKBs that have not had all
4475  * of their frags sent yet, like SunGEM does.
4476  */
4477 static void tg3_tx(struct tg3_napi *tnapi)
4478 {
4479         struct tg3 *tp = tnapi->tp;
4480         u32 hw_idx = tnapi->hw_status->idx[0].tx_consumer;
4481         u32 sw_idx = tnapi->tx_cons;
4482         struct netdev_queue *txq;
4483         int index = tnapi - tp->napi;
4484
4485         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
4486                 index--;
4487
4488         txq = netdev_get_tx_queue(tp->dev, index);
4489
4490         while (sw_idx != hw_idx) {
4491                 struct ring_info *ri = &tnapi->tx_buffers[sw_idx];
4492                 struct sk_buff *skb = ri->skb;
4493                 int i, tx_bug = 0;
4494
4495                 if (unlikely(skb == NULL)) {
4496                         tg3_tx_recover(tp);
4497                         return;
4498                 }
4499
4500                 pci_unmap_single(tp->pdev,
4501                                  dma_unmap_addr(ri, mapping),
4502                                  skb_headlen(skb),
4503                                  PCI_DMA_TODEVICE);
4504
4505                 ri->skb = NULL;
4506
4507                 sw_idx = NEXT_TX(sw_idx);
4508
4509                 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
4510                         ri = &tnapi->tx_buffers[sw_idx];
4511                         if (unlikely(ri->skb != NULL || sw_idx == hw_idx))
4512                                 tx_bug = 1;
4513
4514                         pci_unmap_page(tp->pdev,
4515                                        dma_unmap_addr(ri, mapping),
4516                                        skb_shinfo(skb)->frags[i].size,
4517                                        PCI_DMA_TODEVICE);
4518                         sw_idx = NEXT_TX(sw_idx);
4519                 }
4520
4521                 dev_kfree_skb(skb);
4522
4523                 if (unlikely(tx_bug)) {
4524                         tg3_tx_recover(tp);
4525                         return;
4526                 }
4527         }
4528
4529         tnapi->tx_cons = sw_idx;
4530
4531         /* Need to make the tx_cons update visible to tg3_start_xmit()
4532          * before checking for netif_queue_stopped().  Without the
4533          * memory barrier, there is a small possibility that tg3_start_xmit()
4534          * will miss it and cause the queue to be stopped forever.
4535          */
4536         smp_mb();
4537
4538         if (unlikely(netif_tx_queue_stopped(txq) &&
4539                      (tg3_tx_avail(tnapi) > TG3_TX_WAKEUP_THRESH(tnapi)))) {
4540                 __netif_tx_lock(txq, smp_processor_id());
4541                 if (netif_tx_queue_stopped(txq) &&
4542                     (tg3_tx_avail(tnapi) > TG3_TX_WAKEUP_THRESH(tnapi)))
4543                         netif_tx_wake_queue(txq);
4544                 __netif_tx_unlock(txq);
4545         }
4546 }
4547
4548 static void tg3_rx_skb_free(struct tg3 *tp, struct ring_info *ri, u32 map_sz)
4549 {
4550         if (!ri->skb)
4551                 return;
4552
4553         pci_unmap_single(tp->pdev, dma_unmap_addr(ri, mapping),
4554                          map_sz, PCI_DMA_FROMDEVICE);
4555         dev_kfree_skb_any(ri->skb);
4556         ri->skb = NULL;
4557 }
4558
4559 /* Returns size of skb allocated or < 0 on error.
4560  *
4561  * We only need to fill in the address because the other members
4562  * of the RX descriptor are invariant, see tg3_init_rings.
4563  *
4564  * Note the purposeful assymetry of cpu vs. chip accesses.  For
4565  * posting buffers we only dirty the first cache line of the RX
4566  * descriptor (containing the address).  Whereas for the RX status
4567  * buffers the cpu only reads the last cacheline of the RX descriptor
4568  * (to fetch the error flags, vlan tag, checksum, and opaque cookie).
4569  */
4570 static int tg3_alloc_rx_skb(struct tg3 *tp, struct tg3_rx_prodring_set *tpr,
4571                             u32 opaque_key, u32 dest_idx_unmasked)
4572 {
4573         struct tg3_rx_buffer_desc *desc;
4574         struct ring_info *map;
4575         struct sk_buff *skb;
4576         dma_addr_t mapping;
4577         int skb_size, dest_idx;
4578
4579         switch (opaque_key) {
4580         case RXD_OPAQUE_RING_STD:
4581                 dest_idx = dest_idx_unmasked & tp->rx_std_ring_mask;
4582                 desc = &tpr->rx_std[dest_idx];
4583                 map = &tpr->rx_std_buffers[dest_idx];
4584                 skb_size = tp->rx_pkt_map_sz;
4585                 break;
4586
4587         case RXD_OPAQUE_RING_JUMBO:
4588                 dest_idx = dest_idx_unmasked & tp->rx_jmb_ring_mask;
4589                 desc = &tpr->rx_jmb[dest_idx].std;
4590                 map = &tpr->rx_jmb_buffers[dest_idx];
4591                 skb_size = TG3_RX_JMB_MAP_SZ;
4592                 break;
4593
4594         default:
4595                 return -EINVAL;
4596         }
4597
4598         /* Do not overwrite any of the map or rp information
4599          * until we are sure we can commit to a new buffer.
4600          *
4601          * Callers depend upon this behavior and assume that
4602          * we leave everything unchanged if we fail.
4603          */
4604         skb = netdev_alloc_skb(tp->dev, skb_size + tp->rx_offset);
4605         if (skb == NULL)
4606                 return -ENOMEM;
4607
4608         skb_reserve(skb, tp->rx_offset);
4609
4610         mapping = pci_map_single(tp->pdev, skb->data, skb_size,
4611                                  PCI_DMA_FROMDEVICE);
4612         if (pci_dma_mapping_error(tp->pdev, mapping)) {
4613                 dev_kfree_skb(skb);
4614                 return -EIO;
4615         }
4616
4617         map->skb = skb;
4618         dma_unmap_addr_set(map, mapping, mapping);
4619
4620         desc->addr_hi = ((u64)mapping >> 32);
4621         desc->addr_lo = ((u64)mapping & 0xffffffff);
4622
4623         return skb_size;
4624 }
4625
4626 /* We only need to move over in the address because the other
4627  * members of the RX descriptor are invariant.  See notes above
4628  * tg3_alloc_rx_skb for full details.
4629  */
4630 static void tg3_recycle_rx(struct tg3_napi *tnapi,
4631                            struct tg3_rx_prodring_set *dpr,
4632                            u32 opaque_key, int src_idx,
4633                            u32 dest_idx_unmasked)
4634 {
4635         struct tg3 *tp = tnapi->tp;
4636         struct tg3_rx_buffer_desc *src_desc, *dest_desc;
4637         struct ring_info *src_map, *dest_map;
4638         struct tg3_rx_prodring_set *spr = &tp->napi[0].prodring;
4639         int dest_idx;
4640
4641         switch (opaque_key) {
4642         case RXD_OPAQUE_RING_STD:
4643                 dest_idx = dest_idx_unmasked & tp->rx_std_ring_mask;
4644                 dest_desc = &dpr->rx_std[dest_idx];
4645                 dest_map = &dpr->rx_std_buffers[dest_idx];
4646                 src_desc = &spr->rx_std[src_idx];
4647                 src_map = &spr->rx_std_buffers[src_idx];
4648                 break;
4649
4650         case RXD_OPAQUE_RING_JUMBO:
4651                 dest_idx = dest_idx_unmasked & tp->rx_jmb_ring_mask;
4652                 dest_desc = &dpr->rx_jmb[dest_idx].std;
4653                 dest_map = &dpr->rx_jmb_buffers[dest_idx];
4654                 src_desc = &spr->rx_jmb[src_idx].std;
4655                 src_map = &spr->rx_jmb_buffers[src_idx];
4656                 break;
4657
4658         default:
4659                 return;
4660         }
4661
4662         dest_map->skb = src_map->skb;
4663         dma_unmap_addr_set(dest_map, mapping,
4664                            dma_unmap_addr(src_map, mapping));
4665         dest_desc->addr_hi = src_desc->addr_hi;
4666         dest_desc->addr_lo = src_desc->addr_lo;
4667
4668         /* Ensure that the update to the skb happens after the physical
4669          * addresses have been transferred to the new BD location.
4670          */
4671         smp_wmb();
4672
4673         src_map->skb = NULL;
4674 }
4675
4676 /* The RX ring scheme is composed of multiple rings which post fresh
4677  * buffers to the chip, and one special ring the chip uses to report
4678  * status back to the host.
4679  *
4680  * The special ring reports the status of received packets to the
4681  * host.  The chip does not write into the original descriptor the
4682  * RX buffer was obtained from.  The chip simply takes the original
4683  * descriptor as provided by the host, updates the status and length
4684  * field, then writes this into the next status ring entry.
4685  *
4686  * Each ring the host uses to post buffers to the chip is described
4687  * by a TG3_BDINFO entry in the chips SRAM area.  When a packet arrives,
4688  * it is first placed into the on-chip ram.  When the packet's length
4689  * is known, it walks down the TG3_BDINFO entries to select the ring.
4690  * Each TG3_BDINFO specifies a MAXLEN field and the first TG3_BDINFO
4691  * which is within the range of the new packet's length is chosen.
4692  *
4693  * The "separate ring for rx status" scheme may sound queer, but it makes
4694  * sense from a cache coherency perspective.  If only the host writes
4695  * to the buffer post rings, and only the chip writes to the rx status
4696  * rings, then cache lines never move beyond shared-modified state.
4697  * If both the host and chip were to write into the same ring, cache line
4698  * eviction could occur since both entities want it in an exclusive state.
4699  */
4700 static int tg3_rx(struct tg3_napi *tnapi, int budget)
4701 {
4702         struct tg3 *tp = tnapi->tp;
4703         u32 work_mask, rx_std_posted = 0;
4704         u32 std_prod_idx, jmb_prod_idx;
4705         u32 sw_idx = tnapi->rx_rcb_ptr;
4706         u16 hw_idx;
4707         int received;
4708         struct tg3_rx_prodring_set *tpr = &tnapi->prodring;
4709
4710         hw_idx = *(tnapi->rx_rcb_prod_idx);
4711         /*
4712          * We need to order the read of hw_idx and the read of
4713          * the opaque cookie.
4714          */
4715         rmb();
4716         work_mask = 0;
4717         received = 0;
4718         std_prod_idx = tpr->rx_std_prod_idx;
4719         jmb_prod_idx = tpr->rx_jmb_prod_idx;
4720         while (sw_idx != hw_idx && budget > 0) {
4721                 struct ring_info *ri;
4722                 struct tg3_rx_buffer_desc *desc = &tnapi->rx_rcb[sw_idx];
4723                 unsigned int len;
4724                 struct sk_buff *skb;
4725                 dma_addr_t dma_addr;
4726                 u32 opaque_key, desc_idx, *post_ptr;
4727                 bool hw_vlan __maybe_unused = false;
4728                 u16 vtag __maybe_unused = 0;
4729
4730                 desc_idx = desc->opaque & RXD_OPAQUE_INDEX_MASK;
4731                 opaque_key = desc->opaque & RXD_OPAQUE_RING_MASK;
4732                 if (opaque_key == RXD_OPAQUE_RING_STD) {
4733                         ri = &tp->napi[0].prodring.rx_std_buffers[desc_idx];
4734                         dma_addr = dma_unmap_addr(ri, mapping);
4735                         skb = ri->skb;
4736                         post_ptr = &std_prod_idx;
4737                         rx_std_posted++;
4738                 } else if (opaque_key == RXD_OPAQUE_RING_JUMBO) {
4739                         ri = &tp->napi[0].prodring.rx_jmb_buffers[desc_idx];
4740                         dma_addr = dma_unmap_addr(ri, mapping);
4741                         skb = ri->skb;
4742                         post_ptr = &jmb_prod_idx;
4743                 } else
4744                         goto next_pkt_nopost;
4745
4746                 work_mask |= opaque_key;
4747
4748                 if ((desc->err_vlan & RXD_ERR_MASK) != 0 &&
4749                     (desc->err_vlan != RXD_ERR_ODD_NIBBLE_RCVD_MII)) {
4750                 drop_it:
4751                         tg3_recycle_rx(tnapi, tpr, opaque_key,
4752                                        desc_idx, *post_ptr);
4753                 drop_it_no_recycle:
4754                         /* Other statistics kept track of by card. */
4755                         tp->rx_dropped++;
4756                         goto next_pkt;
4757                 }
4758
4759                 len = ((desc->idx_len & RXD_LEN_MASK) >> RXD_LEN_SHIFT) -
4760                       ETH_FCS_LEN;
4761
4762                 if (len > TG3_RX_COPY_THRESH(tp)) {
4763                         int skb_size;
4764
4765                         skb_size = tg3_alloc_rx_skb(tp, tpr, opaque_key,
4766                                                     *post_ptr);
4767                         if (skb_size < 0)
4768                                 goto drop_it;
4769
4770                         pci_unmap_single(tp->pdev, dma_addr, skb_size,
4771                                          PCI_DMA_FROMDEVICE);
4772
4773                         /* Ensure that the update to the skb happens
4774                          * after the usage of the old DMA mapping.
4775                          */
4776                         smp_wmb();
4777
4778                         ri->skb = NULL;
4779
4780                         skb_put(skb, len);
4781                 } else {
4782                         struct sk_buff *copy_skb;
4783
4784                         tg3_recycle_rx(tnapi, tpr, opaque_key,
4785                                        desc_idx, *post_ptr);
4786
4787                         copy_skb = netdev_alloc_skb(tp->dev, len + VLAN_HLEN +
4788                                                     TG3_RAW_IP_ALIGN);
4789                         if (copy_skb == NULL)
4790                                 goto drop_it_no_recycle;
4791
4792                         skb_reserve(copy_skb, TG3_RAW_IP_ALIGN + VLAN_HLEN);
4793                         skb_put(copy_skb, len);
4794                         pci_dma_sync_single_for_cpu(tp->pdev, dma_addr, len, PCI_DMA_FROMDEVICE);
4795                         skb_copy_from_linear_data(skb, copy_skb->data, len);
4796                         pci_dma_sync_single_for_device(tp->pdev, dma_addr, len, PCI_DMA_FROMDEVICE);
4797
4798                         /* We'll reuse the original ring buffer. */
4799                         skb = copy_skb;
4800                 }
4801
4802                 if ((tp->tg3_flags & TG3_FLAG_RX_CHECKSUMS) &&
4803                     (desc->type_flags & RXD_FLAG_TCPUDP_CSUM) &&
4804                     (((desc->ip_tcp_csum & RXD_TCPCSUM_MASK)
4805                       >> RXD_TCPCSUM_SHIFT) == 0xffff))
4806                         skb->ip_summed = CHECKSUM_UNNECESSARY;
4807                 else
4808                         skb_checksum_none_assert(skb);
4809
4810                 skb->protocol = eth_type_trans(skb, tp->dev);
4811
4812                 if (len > (tp->dev->mtu + ETH_HLEN) &&
4813                     skb->protocol != htons(ETH_P_8021Q)) {
4814                         dev_kfree_skb(skb);
4815                         goto drop_it_no_recycle;
4816                 }
4817
4818                 if (desc->type_flags & RXD_FLAG_VLAN &&
4819                     !(tp->rx_mode & RX_MODE_KEEP_VLAN_TAG)) {
4820                         vtag = desc->err_vlan & RXD_VLAN_MASK;
4821 #if TG3_VLAN_TAG_USED
4822                         if (tp->vlgrp)
4823                                 hw_vlan = true;
4824                         else
4825 #endif
4826                         {
4827                                 struct vlan_ethhdr *ve = (struct vlan_ethhdr *)
4828                                                     __skb_push(skb, VLAN_HLEN);
4829
4830                                 memmove(ve, skb->data + VLAN_HLEN,
4831                                         ETH_ALEN * 2);
4832                                 ve->h_vlan_proto = htons(ETH_P_8021Q);
4833                                 ve->h_vlan_TCI = htons(vtag);
4834                         }
4835                 }
4836
4837 #if TG3_VLAN_TAG_USED
4838                 if (hw_vlan)
4839                         vlan_gro_receive(&tnapi->napi, tp->vlgrp, vtag, skb);
4840                 else
4841 #endif
4842                         napi_gro_receive(&tnapi->napi, skb);
4843
4844                 received++;
4845                 budget--;
4846
4847 next_pkt:
4848                 (*post_ptr)++;
4849
4850                 if (unlikely(rx_std_posted >= tp->rx_std_max_post)) {
4851                         tpr->rx_std_prod_idx = std_prod_idx &
4852                                                tp->rx_std_ring_mask;
4853                         tw32_rx_mbox(TG3_RX_STD_PROD_IDX_REG,
4854                                      tpr->rx_std_prod_idx);
4855                         work_mask &= ~RXD_OPAQUE_RING_STD;
4856                         rx_std_posted = 0;
4857                 }
4858 next_pkt_nopost:
4859                 sw_idx++;
4860                 sw_idx &= tp->rx_ret_ring_mask;
4861
4862                 /* Refresh hw_idx to see if there is new work */
4863                 if (sw_idx == hw_idx) {
4864                         hw_idx = *(tnapi->rx_rcb_prod_idx);
4865                         rmb();
4866                 }
4867         }
4868
4869         /* ACK the status ring. */
4870         tnapi->rx_rcb_ptr = sw_idx;
4871         tw32_rx_mbox(tnapi->consmbox, sw_idx);
4872
4873         /* Refill RX ring(s). */
4874         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS)) {
4875                 if (work_mask & RXD_OPAQUE_RING_STD) {
4876                         tpr->rx_std_prod_idx = std_prod_idx &
4877                                                tp->rx_std_ring_mask;
4878                         tw32_rx_mbox(TG3_RX_STD_PROD_IDX_REG,
4879                                      tpr->rx_std_prod_idx);
4880                 }
4881                 if (work_mask & RXD_OPAQUE_RING_JUMBO) {
4882                         tpr->rx_jmb_prod_idx = jmb_prod_idx &
4883                                                tp->rx_jmb_ring_mask;
4884                         tw32_rx_mbox(TG3_RX_JMB_PROD_IDX_REG,
4885                                      tpr->rx_jmb_prod_idx);
4886                 }
4887                 mmiowb();
4888         } else if (work_mask) {
4889                 /* rx_std_buffers[] and rx_jmb_buffers[] entries must be
4890                  * updated before the producer indices can be updated.
4891                  */
4892                 smp_wmb();
4893
4894                 tpr->rx_std_prod_idx = std_prod_idx & tp->rx_std_ring_mask;
4895                 tpr->rx_jmb_prod_idx = jmb_prod_idx & tp->rx_jmb_ring_mask;
4896
4897                 if (tnapi != &tp->napi[1])
4898                         napi_schedule(&tp->napi[1].napi);
4899         }
4900
4901         return received;
4902 }
4903
4904 static void tg3_poll_link(struct tg3 *tp)
4905 {
4906         /* handle link change and other phy events */
4907         if (!(tp->tg3_flags &
4908               (TG3_FLAG_USE_LINKCHG_REG |
4909                TG3_FLAG_POLL_SERDES))) {
4910                 struct tg3_hw_status *sblk = tp->napi[0].hw_status;
4911
4912                 if (sblk->status & SD_STATUS_LINK_CHG) {
4913                         sblk->status = SD_STATUS_UPDATED |
4914                                        (sblk->status & ~SD_STATUS_LINK_CHG);
4915                         spin_lock(&tp->lock);
4916                         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
4917                                 tw32_f(MAC_STATUS,
4918                                      (MAC_STATUS_SYNC_CHANGED |
4919                                       MAC_STATUS_CFG_CHANGED |
4920                                       MAC_STATUS_MI_COMPLETION |
4921                                       MAC_STATUS_LNKSTATE_CHANGED));
4922                                 udelay(40);
4923                         } else
4924                                 tg3_setup_phy(tp, 0);
4925                         spin_unlock(&tp->lock);
4926                 }
4927         }
4928 }
4929
4930 static int tg3_rx_prodring_xfer(struct tg3 *tp,
4931                                 struct tg3_rx_prodring_set *dpr,
4932                                 struct tg3_rx_prodring_set *spr)
4933 {
4934         u32 si, di, cpycnt, src_prod_idx;
4935         int i, err = 0;
4936
4937         while (1) {
4938                 src_prod_idx = spr->rx_std_prod_idx;
4939
4940                 /* Make sure updates to the rx_std_buffers[] entries and the
4941                  * standard producer index are seen in the correct order.
4942                  */
4943                 smp_rmb();
4944
4945                 if (spr->rx_std_cons_idx == src_prod_idx)
4946                         break;
4947
4948                 if (spr->rx_std_cons_idx < src_prod_idx)
4949                         cpycnt = src_prod_idx - spr->rx_std_cons_idx;
4950                 else
4951                         cpycnt = tp->rx_std_ring_mask + 1 -
4952                                  spr->rx_std_cons_idx;
4953
4954                 cpycnt = min(cpycnt,
4955                              tp->rx_std_ring_mask + 1 - dpr->rx_std_prod_idx);
4956
4957                 si = spr->rx_std_cons_idx;
4958                 di = dpr->rx_std_prod_idx;
4959
4960                 for (i = di; i < di + cpycnt; i++) {
4961                         if (dpr->rx_std_buffers[i].skb) {
4962                                 cpycnt = i - di;
4963                                 err = -ENOSPC;
4964                                 break;
4965                         }
4966                 }
4967
4968                 if (!cpycnt)
4969                         break;
4970
4971                 /* Ensure that updates to the rx_std_buffers ring and the
4972                  * shadowed hardware producer ring from tg3_recycle_skb() are
4973                  * ordered correctly WRT the skb check above.
4974                  */
4975                 smp_rmb();
4976
4977                 memcpy(&dpr->rx_std_buffers[di],
4978                        &spr->rx_std_buffers[si],
4979                        cpycnt * sizeof(struct ring_info));
4980
4981                 for (i = 0; i < cpycnt; i++, di++, si++) {
4982                         struct tg3_rx_buffer_desc *sbd, *dbd;
4983                         sbd = &spr->rx_std[si];
4984                         dbd = &dpr->rx_std[di];
4985                         dbd->addr_hi = sbd->addr_hi;
4986                         dbd->addr_lo = sbd->addr_lo;
4987                 }
4988
4989                 spr->rx_std_cons_idx = (spr->rx_std_cons_idx + cpycnt) &
4990                                        tp->rx_std_ring_mask;
4991                 dpr->rx_std_prod_idx = (dpr->rx_std_prod_idx + cpycnt) &
4992                                        tp->rx_std_ring_mask;
4993         }
4994
4995         while (1) {
4996                 src_prod_idx = spr->rx_jmb_prod_idx;
4997
4998                 /* Make sure updates to the rx_jmb_buffers[] entries and
4999                  * the jumbo producer index are seen in the correct order.
5000                  */
5001                 smp_rmb();
5002
5003                 if (spr->rx_jmb_cons_idx == src_prod_idx)
5004                         break;
5005
5006                 if (spr->rx_jmb_cons_idx < src_prod_idx)
5007                         cpycnt = src_prod_idx - spr->rx_jmb_cons_idx;
5008                 else
5009                         cpycnt = tp->rx_jmb_ring_mask + 1 -
5010                                  spr->rx_jmb_cons_idx;
5011
5012                 cpycnt = min(cpycnt,
5013                              tp->rx_jmb_ring_mask + 1 - dpr->rx_jmb_prod_idx);
5014
5015                 si = spr->rx_jmb_cons_idx;
5016                 di = dpr->rx_jmb_prod_idx;
5017
5018                 for (i = di; i < di + cpycnt; i++) {
5019                         if (dpr->rx_jmb_buffers[i].skb) {
5020                                 cpycnt = i - di;
5021                                 err = -ENOSPC;
5022                                 break;
5023                         }
5024                 }
5025
5026                 if (!cpycnt)
5027                         break;
5028
5029                 /* Ensure that updates to the rx_jmb_buffers ring and the
5030                  * shadowed hardware producer ring from tg3_recycle_skb() are
5031                  * ordered correctly WRT the skb check above.
5032                  */
5033                 smp_rmb();
5034
5035                 memcpy(&dpr->rx_jmb_buffers[di],
5036                        &spr->rx_jmb_buffers[si],
5037                        cpycnt * sizeof(struct ring_info));
5038
5039                 for (i = 0; i < cpycnt; i++, di++, si++) {
5040                         struct tg3_rx_buffer_desc *sbd, *dbd;
5041                         sbd = &spr->rx_jmb[si].std;
5042                         dbd = &dpr->rx_jmb[di].std;
5043                         dbd->addr_hi = sbd->addr_hi;
5044                         dbd->addr_lo = sbd->addr_lo;
5045                 }
5046
5047                 spr->rx_jmb_cons_idx = (spr->rx_jmb_cons_idx + cpycnt) &
5048                                        tp->rx_jmb_ring_mask;
5049                 dpr->rx_jmb_prod_idx = (dpr->rx_jmb_prod_idx + cpycnt) &
5050                                        tp->rx_jmb_ring_mask;
5051         }
5052
5053         return err;
5054 }
5055
5056 static int tg3_poll_work(struct tg3_napi *tnapi, int work_done, int budget)
5057 {
5058         struct tg3 *tp = tnapi->tp;
5059
5060         /* run TX completion thread */
5061         if (tnapi->hw_status->idx[0].tx_consumer != tnapi->tx_cons) {
5062                 tg3_tx(tnapi);
5063                 if (unlikely(tp->tg3_flags & TG3_FLAG_TX_RECOVERY_PENDING))
5064                         return work_done;
5065         }
5066
5067         /* run RX thread, within the bounds set by NAPI.
5068          * All RX "locking" is done by ensuring outside
5069          * code synchronizes with tg3->napi.poll()
5070          */
5071         if (*(tnapi->rx_rcb_prod_idx) != tnapi->rx_rcb_ptr)
5072                 work_done += tg3_rx(tnapi, budget - work_done);
5073
5074         if ((tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS) && tnapi == &tp->napi[1]) {
5075                 struct tg3_rx_prodring_set *dpr = &tp->napi[0].prodring;
5076                 int i, err = 0;
5077                 u32 std_prod_idx = dpr->rx_std_prod_idx;
5078                 u32 jmb_prod_idx = dpr->rx_jmb_prod_idx;
5079
5080                 for (i = 1; i < tp->irq_cnt; i++)
5081                         err |= tg3_rx_prodring_xfer(tp, dpr,
5082                                                     &tp->napi[i].prodring);
5083
5084                 wmb();
5085
5086                 if (std_prod_idx != dpr->rx_std_prod_idx)
5087                         tw32_rx_mbox(TG3_RX_STD_PROD_IDX_REG,
5088                                      dpr->rx_std_prod_idx);
5089
5090                 if (jmb_prod_idx != dpr->rx_jmb_prod_idx)
5091                         tw32_rx_mbox(TG3_RX_JMB_PROD_IDX_REG,
5092                                      dpr->rx_jmb_prod_idx);
5093
5094                 mmiowb();
5095
5096                 if (err)
5097                         tw32_f(HOSTCC_MODE, tp->coal_now);
5098         }
5099
5100         return work_done;
5101 }
5102
5103 static int tg3_poll_msix(struct napi_struct *napi, int budget)
5104 {
5105         struct tg3_napi *tnapi = container_of(napi, struct tg3_napi, napi);
5106         struct tg3 *tp = tnapi->tp;
5107         int work_done = 0;
5108         struct tg3_hw_status *sblk = tnapi->hw_status;
5109
5110         while (1) {
5111                 work_done = tg3_poll_work(tnapi, work_done, budget);
5112
5113                 if (unlikely(tp->tg3_flags & TG3_FLAG_TX_RECOVERY_PENDING))
5114                         goto tx_recovery;
5115
5116                 if (unlikely(work_done >= budget))
5117                         break;
5118
5119                 /* tp->last_tag is used in tg3_int_reenable() below
5120                  * to tell the hw how much work has been processed,
5121                  * so we must read it before checking for more work.
5122                  */
5123                 tnapi->last_tag = sblk->status_tag;
5124                 tnapi->last_irq_tag = tnapi->last_tag;
5125                 rmb();
5126
5127                 /* check for RX/TX work to do */
5128                 if (likely(sblk->idx[0].tx_consumer == tnapi->tx_cons &&
5129                            *(tnapi->rx_rcb_prod_idx) == tnapi->rx_rcb_ptr)) {
5130                         napi_complete(napi);
5131                         /* Reenable interrupts. */
5132                         tw32_mailbox(tnapi->int_mbox, tnapi->last_tag << 24);
5133                         mmiowb();
5134                         break;
5135                 }
5136         }
5137
5138         return work_done;
5139
5140 tx_recovery:
5141         /* work_done is guaranteed to be less than budget. */
5142         napi_complete(napi);
5143         schedule_work(&tp->reset_task);
5144         return work_done;
5145 }
5146
5147 static int tg3_poll(struct napi_struct *napi, int budget)
5148 {
5149         struct tg3_napi *tnapi = container_of(napi, struct tg3_napi, napi);
5150         struct tg3 *tp = tnapi->tp;
5151         int work_done = 0;
5152         struct tg3_hw_status *sblk = tnapi->hw_status;
5153
5154         while (1) {
5155                 tg3_poll_link(tp);
5156
5157                 work_done = tg3_poll_work(tnapi, work_done, budget);
5158
5159                 if (unlikely(tp->tg3_flags & TG3_FLAG_TX_RECOVERY_PENDING))
5160                         goto tx_recovery;
5161
5162                 if (unlikely(work_done >= budget))
5163                         break;
5164
5165                 if (tp->tg3_flags & TG3_FLAG_TAGGED_STATUS) {
5166                         /* tp->last_tag is used in tg3_int_reenable() below
5167                          * to tell the hw how much work has been processed,
5168                          * so we must read it before checking for more work.
5169                          */
5170                         tnapi->last_tag = sblk->status_tag;
5171                         tnapi->last_irq_tag = tnapi->last_tag;
5172                         rmb();
5173                 } else
5174                         sblk->status &= ~SD_STATUS_UPDATED;
5175
5176                 if (likely(!tg3_has_work(tnapi))) {
5177                         napi_complete(napi);
5178                         tg3_int_reenable(tnapi);
5179                         break;
5180                 }
5181         }
5182
5183         return work_done;
5184
5185 tx_recovery:
5186         /* work_done is guaranteed to be less than budget. */
5187         napi_complete(napi);
5188         schedule_work(&tp->reset_task);
5189         return work_done;
5190 }
5191
5192 static void tg3_napi_disable(struct tg3 *tp)
5193 {
5194         int i;
5195
5196         for (i = tp->irq_cnt - 1; i >= 0; i--)
5197                 napi_disable(&tp->napi[i].napi);
5198 }
5199
5200 static void tg3_napi_enable(struct tg3 *tp)
5201 {
5202         int i;
5203
5204         for (i = 0; i < tp->irq_cnt; i++)
5205                 napi_enable(&tp->napi[i].napi);
5206 }
5207
5208 static void tg3_napi_init(struct tg3 *tp)
5209 {
5210         int i;
5211
5212         netif_napi_add(tp->dev, &tp->napi[0].napi, tg3_poll, 64);
5213         for (i = 1; i < tp->irq_cnt; i++)
5214                 netif_napi_add(tp->dev, &tp->napi[i].napi, tg3_poll_msix, 64);
5215 }
5216
5217 static void tg3_napi_fini(struct tg3 *tp)
5218 {
5219         int i;
5220
5221         for (i = 0; i < tp->irq_cnt; i++)
5222                 netif_napi_del(&tp->napi[i].napi);
5223 }
5224
5225 static inline void tg3_netif_stop(struct tg3 *tp)
5226 {
5227         tp->dev->trans_start = jiffies; /* prevent tx timeout */
5228         tg3_napi_disable(tp);
5229         netif_tx_disable(tp->dev);
5230 }
5231
5232 static inline void tg3_netif_start(struct tg3 *tp)
5233 {
5234         /* NOTE: unconditional netif_tx_wake_all_queues is only
5235          * appropriate so long as all callers are assured to
5236          * have free tx slots (such as after tg3_init_hw)
5237          */
5238         netif_tx_wake_all_queues(tp->dev);
5239
5240         tg3_napi_enable(tp);
5241         tp->napi[0].hw_status->status |= SD_STATUS_UPDATED;
5242         tg3_enable_ints(tp);
5243 }
5244
5245 static void tg3_irq_quiesce(struct tg3 *tp)
5246 {
5247         int i;
5248
5249         BUG_ON(tp->irq_sync);
5250
5251         tp->irq_sync = 1;
5252         smp_mb();
5253
5254         for (i = 0; i < tp->irq_cnt; i++)
5255                 synchronize_irq(tp->napi[i].irq_vec);
5256 }
5257
5258 /* Fully shutdown all tg3 driver activity elsewhere in the system.
5259  * If irq_sync is non-zero, then the IRQ handler must be synchronized
5260  * with as well.  Most of the time, this is not necessary except when
5261  * shutting down the device.
5262  */
5263 static inline void tg3_full_lock(struct tg3 *tp, int irq_sync)
5264 {
5265         spin_lock_bh(&tp->lock);
5266         if (irq_sync)
5267                 tg3_irq_quiesce(tp);
5268 }
5269
5270 static inline void tg3_full_unlock(struct tg3 *tp)
5271 {
5272         spin_unlock_bh(&tp->lock);
5273 }
5274
5275 /* One-shot MSI handler - Chip automatically disables interrupt
5276  * after sending MSI so driver doesn't have to do it.
5277  */
5278 static irqreturn_t tg3_msi_1shot(int irq, void *dev_id)
5279 {
5280         struct tg3_napi *tnapi = dev_id;
5281         struct tg3 *tp = tnapi->tp;
5282
5283         prefetch(tnapi->hw_status);
5284         if (tnapi->rx_rcb)
5285                 prefetch(&tnapi->rx_rcb[tnapi->rx_rcb_ptr]);
5286
5287         if (likely(!tg3_irq_sync(tp)))
5288                 napi_schedule(&tnapi->napi);
5289
5290         return IRQ_HANDLED;
5291 }
5292
5293 /* MSI ISR - No need to check for interrupt sharing and no need to
5294  * flush status block and interrupt mailbox. PCI ordering rules
5295  * guarantee that MSI will arrive after the status block.
5296  */
5297 static irqreturn_t tg3_msi(int irq, void *dev_id)
5298 {
5299         struct tg3_napi *tnapi = dev_id;
5300         struct tg3 *tp = tnapi->tp;
5301
5302         prefetch(tnapi->hw_status);
5303         if (tnapi->rx_rcb)
5304                 prefetch(&tnapi->rx_rcb[tnapi->rx_rcb_ptr]);
5305         /*
5306          * Writing any value to intr-mbox-0 clears PCI INTA# and
5307          * chip-internal interrupt pending events.
5308          * Writing non-zero to intr-mbox-0 additional tells the
5309          * NIC to stop sending us irqs, engaging "in-intr-handler"
5310          * event coalescing.
5311          */
5312         tw32_mailbox(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
5313         if (likely(!tg3_irq_sync(tp)))
5314                 napi_schedule(&tnapi->napi);
5315
5316         return IRQ_RETVAL(1);
5317 }
5318
5319 static irqreturn_t tg3_interrupt(int irq, void *dev_id)
5320 {
5321         struct tg3_napi *tnapi = dev_id;
5322         struct tg3 *tp = tnapi->tp;
5323         struct tg3_hw_status *sblk = tnapi->hw_status;
5324         unsigned int handled = 1;
5325
5326         /* In INTx mode, it is possible for the interrupt to arrive at
5327          * the CPU before the status block posted prior to the interrupt.
5328          * Reading the PCI State register will confirm whether the
5329          * interrupt is ours and will flush the status block.
5330          */
5331         if (unlikely(!(sblk->status & SD_STATUS_UPDATED))) {
5332                 if ((tp->tg3_flags & TG3_FLAG_CHIP_RESETTING) ||
5333                     (tr32(TG3PCI_PCISTATE) & PCISTATE_INT_NOT_ACTIVE)) {
5334                         handled = 0;
5335                         goto out;
5336                 }
5337         }
5338
5339         /*
5340          * Writing any value to intr-mbox-0 clears PCI INTA# and
5341          * chip-internal interrupt pending events.
5342          * Writing non-zero to intr-mbox-0 additional tells the
5343          * NIC to stop sending us irqs, engaging "in-intr-handler"
5344          * event coalescing.
5345          *
5346          * Flush the mailbox to de-assert the IRQ immediately to prevent
5347          * spurious interrupts.  The flush impacts performance but
5348          * excessive spurious interrupts can be worse in some cases.
5349          */
5350         tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
5351         if (tg3_irq_sync(tp))
5352                 goto out;
5353         sblk->status &= ~SD_STATUS_UPDATED;
5354         if (likely(tg3_has_work(tnapi))) {
5355                 prefetch(&tnapi->rx_rcb[tnapi->rx_rcb_ptr]);
5356                 napi_schedule(&tnapi->napi);
5357         } else {
5358                 /* No work, shared interrupt perhaps?  re-enable
5359                  * interrupts, and flush that PCI write
5360                  */
5361                 tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW,
5362                                0x00000000);
5363         }
5364 out:
5365         return IRQ_RETVAL(handled);
5366 }
5367
5368 static irqreturn_t tg3_interrupt_tagged(int irq, void *dev_id)
5369 {
5370         struct tg3_napi *tnapi = dev_id;
5371         struct tg3 *tp = tnapi->tp;
5372         struct tg3_hw_status *sblk = tnapi->hw_status;
5373         unsigned int handled = 1;
5374
5375         /* In INTx mode, it is possible for the interrupt to arrive at
5376          * the CPU before the status block posted prior to the interrupt.
5377          * Reading the PCI State register will confirm whether the
5378          * interrupt is ours and will flush the status block.
5379          */
5380         if (unlikely(sblk->status_tag == tnapi->last_irq_tag)) {
5381                 if ((tp->tg3_flags & TG3_FLAG_CHIP_RESETTING) ||
5382                     (tr32(TG3PCI_PCISTATE) & PCISTATE_INT_NOT_ACTIVE)) {
5383                         handled = 0;
5384                         goto out;
5385                 }
5386         }
5387
5388         /*
5389          * writing any value to intr-mbox-0 clears PCI INTA# and
5390          * chip-internal interrupt pending events.
5391          * writing non-zero to intr-mbox-0 additional tells the
5392          * NIC to stop sending us irqs, engaging "in-intr-handler"
5393          * event coalescing.
5394          *
5395          * Flush the mailbox to de-assert the IRQ immediately to prevent
5396          * spurious interrupts.  The flush impacts performance but
5397          * excessive spurious interrupts can be worse in some cases.
5398          */
5399         tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
5400
5401         /*
5402          * In a shared interrupt configuration, sometimes other devices'
5403          * interrupts will scream.  We record the current status tag here
5404          * so that the above check can report that the screaming interrupts
5405          * are unhandled.  Eventually they will be silenced.
5406          */
5407         tnapi->last_irq_tag = sblk->status_tag;
5408
5409         if (tg3_irq_sync(tp))
5410                 goto out;
5411
5412         prefetch(&tnapi->rx_rcb[tnapi->rx_rcb_ptr]);
5413
5414         napi_schedule(&tnapi->napi);
5415
5416 out:
5417         return IRQ_RETVAL(handled);
5418 }
5419
5420 /* ISR for interrupt test */
5421 static irqreturn_t tg3_test_isr(int irq, void *dev_id)
5422 {
5423         struct tg3_napi *tnapi = dev_id;
5424         struct tg3 *tp = tnapi->tp;
5425         struct tg3_hw_status *sblk = tnapi->hw_status;
5426
5427         if ((sblk->status & SD_STATUS_UPDATED) ||
5428             !(tr32(TG3PCI_PCISTATE) & PCISTATE_INT_NOT_ACTIVE)) {
5429                 tg3_disable_ints(tp);
5430                 return IRQ_RETVAL(1);
5431         }
5432         return IRQ_RETVAL(0);
5433 }
5434
5435 static int tg3_init_hw(struct tg3 *, int);
5436 static int tg3_halt(struct tg3 *, int, int);
5437
5438 /* Restart hardware after configuration changes, self-test, etc.
5439  * Invoked with tp->lock held.
5440  */
5441 static int tg3_restart_hw(struct tg3 *tp, int reset_phy)
5442         __releases(tp->lock)
5443         __acquires(tp->lock)
5444 {
5445         int err;
5446
5447         err = tg3_init_hw(tp, reset_phy);
5448         if (err) {
5449                 netdev_err(tp->dev,
5450                            "Failed to re-initialize device, aborting\n");
5451                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
5452                 tg3_full_unlock(tp);
5453                 del_timer_sync(&tp->timer);
5454                 tp->irq_sync = 0;
5455                 tg3_napi_enable(tp);
5456                 dev_close(tp->dev);
5457                 tg3_full_lock(tp, 0);
5458         }
5459         return err;
5460 }
5461
5462 #ifdef CONFIG_NET_POLL_CONTROLLER
5463 static void tg3_poll_controller(struct net_device *dev)
5464 {
5465         int i;
5466         struct tg3 *tp = netdev_priv(dev);
5467
5468         for (i = 0; i < tp->irq_cnt; i++)
5469                 tg3_interrupt(tp->napi[i].irq_vec, &tp->napi[i]);
5470 }
5471 #endif
5472
5473 static void tg3_reset_task(struct work_struct *work)
5474 {
5475         struct tg3 *tp = container_of(work, struct tg3, reset_task);
5476         int err;
5477         unsigned int restart_timer;
5478
5479         tg3_full_lock(tp, 0);
5480
5481         if (!netif_running(tp->dev)) {
5482                 tg3_full_unlock(tp);
5483                 return;
5484         }
5485
5486         tg3_full_unlock(tp);
5487
5488         tg3_phy_stop(tp);
5489
5490         tg3_netif_stop(tp);
5491
5492         tg3_full_lock(tp, 1);
5493
5494         restart_timer = tp->tg3_flags2 & TG3_FLG2_RESTART_TIMER;
5495         tp->tg3_flags2 &= ~TG3_FLG2_RESTART_TIMER;
5496
5497         if (tp->tg3_flags & TG3_FLAG_TX_RECOVERY_PENDING) {
5498                 tp->write32_tx_mbox = tg3_write32_tx_mbox;
5499                 tp->write32_rx_mbox = tg3_write_flush_reg32;
5500                 tp->tg3_flags |= TG3_FLAG_MBOX_WRITE_REORDER;
5501                 tp->tg3_flags &= ~TG3_FLAG_TX_RECOVERY_PENDING;
5502         }
5503
5504         tg3_halt(tp, RESET_KIND_SHUTDOWN, 0);
5505         err = tg3_init_hw(tp, 1);
5506         if (err)
5507                 goto out;
5508
5509         tg3_netif_start(tp);
5510
5511         if (restart_timer)
5512                 mod_timer(&tp->timer, jiffies + 1);
5513
5514 out:
5515         tg3_full_unlock(tp);
5516
5517         if (!err)
5518                 tg3_phy_start(tp);
5519 }
5520
5521 static void tg3_dump_short_state(struct tg3 *tp)
5522 {
5523         netdev_err(tp->dev, "DEBUG: MAC_TX_STATUS[%08x] MAC_RX_STATUS[%08x]\n",
5524                    tr32(MAC_TX_STATUS), tr32(MAC_RX_STATUS));
5525         netdev_err(tp->dev, "DEBUG: RDMAC_STATUS[%08x] WDMAC_STATUS[%08x]\n",
5526                    tr32(RDMAC_STATUS), tr32(WDMAC_STATUS));
5527 }
5528
5529 static void tg3_tx_timeout(struct net_device *dev)
5530 {
5531         struct tg3 *tp = netdev_priv(dev);
5532
5533         if (netif_msg_tx_err(tp)) {
5534                 netdev_err(dev, "transmit timed out, resetting\n");
5535                 tg3_dump_short_state(tp);
5536         }
5537
5538         schedule_work(&tp->reset_task);
5539 }
5540
5541 /* Test for DMA buffers crossing any 4GB boundaries: 4G, 8G, etc */
5542 static inline int tg3_4g_overflow_test(dma_addr_t mapping, int len)
5543 {
5544         u32 base = (u32) mapping & 0xffffffff;
5545
5546         return (base > 0xffffdcc0) && (base + len + 8 < base);
5547 }
5548
5549 /* Test for DMA addresses > 40-bit */
5550 static inline int tg3_40bit_overflow_test(struct tg3 *tp, dma_addr_t mapping,
5551                                           int len)
5552 {
5553 #if defined(CONFIG_HIGHMEM) && (BITS_PER_LONG == 64)
5554         if (tp->tg3_flags & TG3_FLAG_40BIT_DMA_BUG)
5555                 return ((u64) mapping + len) > DMA_BIT_MASK(40);
5556         return 0;
5557 #else
5558         return 0;
5559 #endif
5560 }
5561
5562 static void tg3_set_txd(struct tg3_napi *, int, dma_addr_t, int, u32, u32);
5563
5564 /* Workaround 4GB and 40-bit hardware DMA bugs. */
5565 static int tigon3_dma_hwbug_workaround(struct tg3_napi *tnapi,
5566                                        struct sk_buff *skb, u32 last_plus_one,
5567                                        u32 *start, u32 base_flags, u32 mss)
5568 {
5569         struct tg3 *tp = tnapi->tp;
5570         struct sk_buff *new_skb;
5571         dma_addr_t new_addr = 0;
5572         u32 entry = *start;
5573         int i, ret = 0;
5574
5575         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701)
5576                 new_skb = skb_copy(skb, GFP_ATOMIC);
5577         else {
5578                 int more_headroom = 4 - ((unsigned long)skb->data & 3);
5579
5580                 new_skb = skb_copy_expand(skb,
5581                                           skb_headroom(skb) + more_headroom,
5582                                           skb_tailroom(skb), GFP_ATOMIC);
5583         }
5584
5585         if (!new_skb) {
5586                 ret = -1;
5587         } else {
5588                 /* New SKB is guaranteed to be linear. */
5589                 entry = *start;
5590                 new_addr = pci_map_single(tp->pdev, new_skb->data, new_skb->len,
5591                                           PCI_DMA_TODEVICE);
5592                 /* Make sure the mapping succeeded */
5593                 if (pci_dma_mapping_error(tp->pdev, new_addr)) {
5594                         ret = -1;
5595                         dev_kfree_skb(new_skb);
5596                         new_skb = NULL;
5597
5598                 /* Make sure new skb does not cross any 4G boundaries.
5599                  * Drop the packet if it does.
5600                  */
5601                 } else if ((tp->tg3_flags3 & TG3_FLG3_4G_DMA_BNDRY_BUG) &&
5602                             tg3_4g_overflow_test(new_addr, new_skb->len)) {
5603                         pci_unmap_single(tp->pdev, new_addr, new_skb->len,
5604                                          PCI_DMA_TODEVICE);
5605                         ret = -1;
5606                         dev_kfree_skb(new_skb);
5607                         new_skb = NULL;
5608                 } else {
5609                         tg3_set_txd(tnapi, entry, new_addr, new_skb->len,
5610                                     base_flags, 1 | (mss << 1));
5611                         *start = NEXT_TX(entry);
5612                 }
5613         }
5614
5615         /* Now clean up the sw ring entries. */
5616         i = 0;
5617         while (entry != last_plus_one) {
5618                 int len;
5619
5620                 if (i == 0)
5621                         len = skb_headlen(skb);
5622                 else
5623                         len = skb_shinfo(skb)->frags[i-1].size;
5624
5625                 pci_unmap_single(tp->pdev,
5626                                  dma_unmap_addr(&tnapi->tx_buffers[entry],
5627                                                 mapping),
5628                                  len, PCI_DMA_TODEVICE);
5629                 if (i == 0) {
5630                         tnapi->tx_buffers[entry].skb = new_skb;
5631                         dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping,
5632                                            new_addr);
5633                 } else {
5634                         tnapi->tx_buffers[entry].skb = NULL;
5635                 }
5636                 entry = NEXT_TX(entry);
5637                 i++;
5638         }
5639
5640         dev_kfree_skb(skb);
5641
5642         return ret;
5643 }
5644
5645 static void tg3_set_txd(struct tg3_napi *tnapi, int entry,
5646                         dma_addr_t mapping, int len, u32 flags,
5647                         u32 mss_and_is_end)
5648 {
5649         struct tg3_tx_buffer_desc *txd = &tnapi->tx_ring[entry];
5650         int is_end = (mss_and_is_end & 0x1);
5651         u32 mss = (mss_and_is_end >> 1);
5652         u32 vlan_tag = 0;
5653
5654         if (is_end)
5655                 flags |= TXD_FLAG_END;
5656         if (flags & TXD_FLAG_VLAN) {
5657                 vlan_tag = flags >> 16;
5658                 flags &= 0xffff;
5659         }
5660         vlan_tag |= (mss << TXD_MSS_SHIFT);
5661
5662         txd->addr_hi = ((u64) mapping >> 32);
5663         txd->addr_lo = ((u64) mapping & 0xffffffff);
5664         txd->len_flags = (len << TXD_LEN_SHIFT) | flags;
5665         txd->vlan_tag = vlan_tag << TXD_VLAN_TAG_SHIFT;
5666 }
5667
5668 /* hard_start_xmit for devices that don't have any bugs and
5669  * support TG3_FLG2_HW_TSO_2 and TG3_FLG2_HW_TSO_3 only.
5670  */
5671 static netdev_tx_t tg3_start_xmit(struct sk_buff *skb,
5672                                   struct net_device *dev)
5673 {
5674         struct tg3 *tp = netdev_priv(dev);
5675         u32 len, entry, base_flags, mss;
5676         dma_addr_t mapping;
5677         struct tg3_napi *tnapi;
5678         struct netdev_queue *txq;
5679         unsigned int i, last;
5680
5681         txq = netdev_get_tx_queue(dev, skb_get_queue_mapping(skb));
5682         tnapi = &tp->napi[skb_get_queue_mapping(skb)];
5683         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
5684                 tnapi++;
5685
5686         /* We are running in BH disabled context with netif_tx_lock
5687          * and TX reclaim runs via tp->napi.poll inside of a software
5688          * interrupt.  Furthermore, IRQ processing runs lockless so we have
5689          * no IRQ context deadlocks to worry about either.  Rejoice!
5690          */
5691         if (unlikely(tg3_tx_avail(tnapi) <= (skb_shinfo(skb)->nr_frags + 1))) {
5692                 if (!netif_tx_queue_stopped(txq)) {
5693                         netif_tx_stop_queue(txq);
5694
5695                         /* This is a hard error, log it. */
5696                         netdev_err(dev,
5697                                    "BUG! Tx Ring full when queue awake!\n");
5698                 }
5699                 return NETDEV_TX_BUSY;
5700         }
5701
5702         entry = tnapi->tx_prod;
5703         base_flags = 0;
5704         mss = skb_shinfo(skb)->gso_size;
5705         if (mss) {
5706                 int tcp_opt_len, ip_tcp_len;
5707                 u32 hdrlen;
5708
5709                 if (skb_header_cloned(skb) &&
5710                     pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) {
5711                         dev_kfree_skb(skb);
5712                         goto out_unlock;
5713                 }
5714
5715                 if (skb_is_gso_v6(skb)) {
5716                         hdrlen = skb_headlen(skb) - ETH_HLEN;
5717                 } else {
5718                         struct iphdr *iph = ip_hdr(skb);
5719
5720                         tcp_opt_len = tcp_optlen(skb);
5721                         ip_tcp_len = ip_hdrlen(skb) + sizeof(struct tcphdr);
5722
5723                         iph->check = 0;
5724                         iph->tot_len = htons(mss + ip_tcp_len + tcp_opt_len);
5725                         hdrlen = ip_tcp_len + tcp_opt_len;
5726                 }
5727
5728                 if (tp->tg3_flags2 & TG3_FLG2_HW_TSO_3) {
5729                         mss |= (hdrlen & 0xc) << 12;
5730                         if (hdrlen & 0x10)
5731                                 base_flags |= 0x00000010;
5732                         base_flags |= (hdrlen & 0x3e0) << 5;
5733                 } else
5734                         mss |= hdrlen << 9;
5735
5736                 base_flags |= (TXD_FLAG_CPU_PRE_DMA |
5737                                TXD_FLAG_CPU_POST_DMA);
5738
5739                 tcp_hdr(skb)->check = 0;
5740
5741         } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
5742                 base_flags |= TXD_FLAG_TCPUDP_CSUM;
5743         }
5744
5745 #if TG3_VLAN_TAG_USED
5746         if (vlan_tx_tag_present(skb))
5747                 base_flags |= (TXD_FLAG_VLAN |
5748                                (vlan_tx_tag_get(skb) << 16));
5749 #endif
5750
5751         len = skb_headlen(skb);
5752
5753         /* Queue skb data, a.k.a. the main skb fragment. */
5754         mapping = pci_map_single(tp->pdev, skb->data, len, PCI_DMA_TODEVICE);
5755         if (pci_dma_mapping_error(tp->pdev, mapping)) {
5756                 dev_kfree_skb(skb);
5757                 goto out_unlock;
5758         }
5759
5760         tnapi->tx_buffers[entry].skb = skb;
5761         dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping, mapping);
5762
5763         if ((tp->tg3_flags3 & TG3_FLG3_USE_JUMBO_BDFLAG) &&
5764             !mss && skb->len > ETH_DATA_LEN)
5765                 base_flags |= TXD_FLAG_JMB_PKT;
5766
5767         tg3_set_txd(tnapi, entry, mapping, len, base_flags,
5768                     (skb_shinfo(skb)->nr_frags == 0) | (mss << 1));
5769
5770         entry = NEXT_TX(entry);
5771
5772         /* Now loop through additional data fragments, and queue them. */
5773         if (skb_shinfo(skb)->nr_frags > 0) {
5774                 last = skb_shinfo(skb)->nr_frags - 1;
5775                 for (i = 0; i <= last; i++) {
5776                         skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
5777
5778                         len = frag->size;
5779                         mapping = pci_map_page(tp->pdev,
5780                                                frag->page,
5781                                                frag->page_offset,
5782                                                len, PCI_DMA_TODEVICE);
5783                         if (pci_dma_mapping_error(tp->pdev, mapping))
5784                                 goto dma_error;
5785
5786                         tnapi->tx_buffers[entry].skb = NULL;
5787                         dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping,
5788                                            mapping);
5789
5790                         tg3_set_txd(tnapi, entry, mapping, len,
5791                                     base_flags, (i == last) | (mss << 1));
5792
5793                         entry = NEXT_TX(entry);
5794                 }
5795         }
5796
5797         /* Packets are ready, update Tx producer idx local and on card. */
5798         tw32_tx_mbox(tnapi->prodmbox, entry);
5799
5800         tnapi->tx_prod = entry;
5801         if (unlikely(tg3_tx_avail(tnapi) <= (MAX_SKB_FRAGS + 1))) {
5802                 netif_tx_stop_queue(txq);
5803
5804                 /* netif_tx_stop_queue() must be done before checking
5805                  * checking tx index in tg3_tx_avail() below, because in
5806                  * tg3_tx(), we update tx index before checking for
5807                  * netif_tx_queue_stopped().
5808                  */
5809                 smp_mb();
5810                 if (tg3_tx_avail(tnapi) > TG3_TX_WAKEUP_THRESH(tnapi))
5811                         netif_tx_wake_queue(txq);
5812         }
5813
5814 out_unlock:
5815         mmiowb();
5816
5817         return NETDEV_TX_OK;
5818
5819 dma_error:
5820         last = i;
5821         entry = tnapi->tx_prod;
5822         tnapi->tx_buffers[entry].skb = NULL;
5823         pci_unmap_single(tp->pdev,
5824                          dma_unmap_addr(&tnapi->tx_buffers[entry], mapping),
5825                          skb_headlen(skb),
5826                          PCI_DMA_TODEVICE);
5827         for (i = 0; i <= last; i++) {
5828                 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
5829                 entry = NEXT_TX(entry);
5830
5831                 pci_unmap_page(tp->pdev,
5832                                dma_unmap_addr(&tnapi->tx_buffers[entry],
5833                                               mapping),
5834                                frag->size, PCI_DMA_TODEVICE);
5835         }
5836
5837         dev_kfree_skb(skb);
5838         return NETDEV_TX_OK;
5839 }
5840
5841 static netdev_tx_t tg3_start_xmit_dma_bug(struct sk_buff *,
5842                                           struct net_device *);
5843
5844 /* Use GSO to workaround a rare TSO bug that may be triggered when the
5845  * TSO header is greater than 80 bytes.
5846  */
5847 static int tg3_tso_bug(struct tg3 *tp, struct sk_buff *skb)
5848 {
5849         struct sk_buff *segs, *nskb;
5850         u32 frag_cnt_est = skb_shinfo(skb)->gso_segs * 3;
5851
5852         /* Estimate the number of fragments in the worst case */
5853         if (unlikely(tg3_tx_avail(&tp->napi[0]) <= frag_cnt_est)) {
5854                 netif_stop_queue(tp->dev);
5855
5856                 /* netif_tx_stop_queue() must be done before checking
5857                  * checking tx index in tg3_tx_avail() below, because in
5858                  * tg3_tx(), we update tx index before checking for
5859                  * netif_tx_queue_stopped().
5860                  */
5861                 smp_mb();
5862                 if (tg3_tx_avail(&tp->napi[0]) <= frag_cnt_est)
5863                         return NETDEV_TX_BUSY;
5864
5865                 netif_wake_queue(tp->dev);
5866         }
5867
5868         segs = skb_gso_segment(skb, tp->dev->features & ~NETIF_F_TSO);
5869         if (IS_ERR(segs))
5870                 goto tg3_tso_bug_end;
5871
5872         do {
5873                 nskb = segs;
5874                 segs = segs->next;
5875                 nskb->next = NULL;
5876                 tg3_start_xmit_dma_bug(nskb, tp->dev);
5877         } while (segs);
5878
5879 tg3_tso_bug_end:
5880         dev_kfree_skb(skb);
5881
5882         return NETDEV_TX_OK;
5883 }
5884
5885 /* hard_start_xmit for devices that have the 4G bug and/or 40-bit bug and
5886  * support TG3_FLG2_HW_TSO_1 or firmware TSO only.
5887  */
5888 static netdev_tx_t tg3_start_xmit_dma_bug(struct sk_buff *skb,
5889                                           struct net_device *dev)
5890 {
5891         struct tg3 *tp = netdev_priv(dev);
5892         u32 len, entry, base_flags, mss;
5893         int would_hit_hwbug;
5894         dma_addr_t mapping;
5895         struct tg3_napi *tnapi;
5896         struct netdev_queue *txq;
5897         unsigned int i, last;
5898
5899         txq = netdev_get_tx_queue(dev, skb_get_queue_mapping(skb));
5900         tnapi = &tp->napi[skb_get_queue_mapping(skb)];
5901         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
5902                 tnapi++;
5903
5904         /* We are running in BH disabled context with netif_tx_lock
5905          * and TX reclaim runs via tp->napi.poll inside of a software
5906          * interrupt.  Furthermore, IRQ processing runs lockless so we have
5907          * no IRQ context deadlocks to worry about either.  Rejoice!
5908          */
5909         if (unlikely(tg3_tx_avail(tnapi) <= (skb_shinfo(skb)->nr_frags + 1))) {
5910                 if (!netif_tx_queue_stopped(txq)) {
5911                         netif_tx_stop_queue(txq);
5912
5913                         /* This is a hard error, log it. */
5914                         netdev_err(dev,
5915                                    "BUG! Tx Ring full when queue awake!\n");
5916                 }
5917                 return NETDEV_TX_BUSY;
5918         }
5919
5920         entry = tnapi->tx_prod;
5921         base_flags = 0;
5922         if (skb->ip_summed == CHECKSUM_PARTIAL)
5923                 base_flags |= TXD_FLAG_TCPUDP_CSUM;
5924
5925         mss = skb_shinfo(skb)->gso_size;
5926         if (mss) {
5927                 struct iphdr *iph;
5928                 u32 tcp_opt_len, hdr_len;
5929
5930                 if (skb_header_cloned(skb) &&
5931                     pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) {
5932                         dev_kfree_skb(skb);
5933                         goto out_unlock;
5934                 }
5935
5936                 iph = ip_hdr(skb);
5937                 tcp_opt_len = tcp_optlen(skb);
5938
5939                 if (skb_is_gso_v6(skb)) {
5940                         hdr_len = skb_headlen(skb) - ETH_HLEN;
5941                 } else {
5942                         u32 ip_tcp_len;
5943
5944                         ip_tcp_len = ip_hdrlen(skb) + sizeof(struct tcphdr);
5945                         hdr_len = ip_tcp_len + tcp_opt_len;
5946
5947                         iph->check = 0;
5948                         iph->tot_len = htons(mss + hdr_len);
5949                 }
5950
5951                 if (unlikely((ETH_HLEN + hdr_len) > 80) &&
5952                              (tp->tg3_flags2 & TG3_FLG2_TSO_BUG))
5953                         return tg3_tso_bug(tp, skb);
5954
5955                 base_flags |= (TXD_FLAG_CPU_PRE_DMA |
5956                                TXD_FLAG_CPU_POST_DMA);
5957
5958                 if (tp->tg3_flags2 & TG3_FLG2_HW_TSO) {
5959                         tcp_hdr(skb)->check = 0;
5960                         base_flags &= ~TXD_FLAG_TCPUDP_CSUM;
5961                 } else
5962                         tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
5963                                                                  iph->daddr, 0,
5964                                                                  IPPROTO_TCP,
5965                                                                  0);
5966
5967                 if (tp->tg3_flags2 & TG3_FLG2_HW_TSO_3) {
5968                         mss |= (hdr_len & 0xc) << 12;
5969                         if (hdr_len & 0x10)
5970                                 base_flags |= 0x00000010;
5971                         base_flags |= (hdr_len & 0x3e0) << 5;
5972                 } else if (tp->tg3_flags2 & TG3_FLG2_HW_TSO_2)
5973                         mss |= hdr_len << 9;
5974                 else if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_1) ||
5975                          GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
5976                         if (tcp_opt_len || iph->ihl > 5) {
5977                                 int tsflags;
5978
5979                                 tsflags = (iph->ihl - 5) + (tcp_opt_len >> 2);
5980                                 mss |= (tsflags << 11);
5981                         }
5982                 } else {
5983                         if (tcp_opt_len || iph->ihl > 5) {
5984                                 int tsflags;
5985
5986                                 tsflags = (iph->ihl - 5) + (tcp_opt_len >> 2);
5987                                 base_flags |= tsflags << 12;
5988                         }
5989                 }
5990         }
5991 #if TG3_VLAN_TAG_USED
5992         if (vlan_tx_tag_present(skb))
5993                 base_flags |= (TXD_FLAG_VLAN |
5994                                (vlan_tx_tag_get(skb) << 16));
5995 #endif
5996
5997         if ((tp->tg3_flags3 & TG3_FLG3_USE_JUMBO_BDFLAG) &&
5998             !mss && skb->len > ETH_DATA_LEN)
5999                 base_flags |= TXD_FLAG_JMB_PKT;
6000
6001         len = skb_headlen(skb);
6002
6003         mapping = pci_map_single(tp->pdev, skb->data, len, PCI_DMA_TODEVICE);
6004         if (pci_dma_mapping_error(tp->pdev, mapping)) {
6005                 dev_kfree_skb(skb);
6006                 goto out_unlock;
6007         }
6008
6009         tnapi->tx_buffers[entry].skb = skb;
6010         dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping, mapping);
6011
6012         would_hit_hwbug = 0;
6013
6014         if ((tp->tg3_flags3 & TG3_FLG3_SHORT_DMA_BUG) && len <= 8)
6015                 would_hit_hwbug = 1;
6016
6017         if ((tp->tg3_flags3 & TG3_FLG3_4G_DMA_BNDRY_BUG) &&
6018             tg3_4g_overflow_test(mapping, len))
6019                 would_hit_hwbug = 1;
6020
6021         if ((tp->tg3_flags3 & TG3_FLG3_40BIT_DMA_LIMIT_BUG) &&
6022             tg3_40bit_overflow_test(tp, mapping, len))
6023                 would_hit_hwbug = 1;
6024
6025         if (tp->tg3_flags3 & TG3_FLG3_5701_DMA_BUG)
6026                 would_hit_hwbug = 1;
6027
6028         tg3_set_txd(tnapi, entry, mapping, len, base_flags,
6029                     (skb_shinfo(skb)->nr_frags == 0) | (mss << 1));
6030
6031         entry = NEXT_TX(entry);
6032
6033         /* Now loop through additional data fragments, and queue them. */
6034         if (skb_shinfo(skb)->nr_frags > 0) {
6035                 last = skb_shinfo(skb)->nr_frags - 1;
6036                 for (i = 0; i <= last; i++) {
6037                         skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
6038
6039                         len = frag->size;
6040                         mapping = pci_map_page(tp->pdev,
6041                                                frag->page,
6042                                                frag->page_offset,
6043                                                len, PCI_DMA_TODEVICE);
6044
6045                         tnapi->tx_buffers[entry].skb = NULL;
6046                         dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping,
6047                                            mapping);
6048                         if (pci_dma_mapping_error(tp->pdev, mapping))
6049                                 goto dma_error;
6050
6051                         if ((tp->tg3_flags3 & TG3_FLG3_SHORT_DMA_BUG) &&
6052                             len <= 8)
6053                                 would_hit_hwbug = 1;
6054
6055                         if ((tp->tg3_flags3 & TG3_FLG3_4G_DMA_BNDRY_BUG) &&
6056                             tg3_4g_overflow_test(mapping, len))
6057                                 would_hit_hwbug = 1;
6058
6059                         if ((tp->tg3_flags3 & TG3_FLG3_40BIT_DMA_LIMIT_BUG) &&
6060                             tg3_40bit_overflow_test(tp, mapping, len))
6061                                 would_hit_hwbug = 1;
6062
6063                         if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
6064                                 tg3_set_txd(tnapi, entry, mapping, len,
6065                                             base_flags, (i == last)|(mss << 1));
6066                         else
6067                                 tg3_set_txd(tnapi, entry, mapping, len,
6068                                             base_flags, (i == last));
6069
6070                         entry = NEXT_TX(entry);
6071                 }
6072         }
6073
6074         if (would_hit_hwbug) {
6075                 u32 last_plus_one = entry;
6076                 u32 start;
6077
6078                 start = entry - 1 - skb_shinfo(skb)->nr_frags;
6079                 start &= (TG3_TX_RING_SIZE - 1);
6080
6081                 /* If the workaround fails due to memory/mapping
6082                  * failure, silently drop this packet.
6083                  */
6084                 if (tigon3_dma_hwbug_workaround(tnapi, skb, last_plus_one,
6085                                                 &start, base_flags, mss))
6086                         goto out_unlock;
6087
6088                 entry = start;
6089         }
6090
6091         /* Packets are ready, update Tx producer idx local and on card. */
6092         tw32_tx_mbox(tnapi->prodmbox, entry);
6093
6094         tnapi->tx_prod = entry;
6095         if (unlikely(tg3_tx_avail(tnapi) <= (MAX_SKB_FRAGS + 1))) {
6096                 netif_tx_stop_queue(txq);
6097
6098                 /* netif_tx_stop_queue() must be done before checking
6099                  * checking tx index in tg3_tx_avail() below, because in
6100                  * tg3_tx(), we update tx index before checking for
6101                  * netif_tx_queue_stopped().
6102                  */
6103                 smp_mb();
6104                 if (tg3_tx_avail(tnapi) > TG3_TX_WAKEUP_THRESH(tnapi))
6105                         netif_tx_wake_queue(txq);
6106         }
6107
6108 out_unlock:
6109         mmiowb();
6110
6111         return NETDEV_TX_OK;
6112
6113 dma_error:
6114         last = i;
6115         entry = tnapi->tx_prod;
6116         tnapi->tx_buffers[entry].skb = NULL;
6117         pci_unmap_single(tp->pdev,
6118                          dma_unmap_addr(&tnapi->tx_buffers[entry], mapping),
6119                          skb_headlen(skb),
6120                          PCI_DMA_TODEVICE);
6121         for (i = 0; i <= last; i++) {
6122                 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
6123                 entry = NEXT_TX(entry);
6124
6125                 pci_unmap_page(tp->pdev,
6126                                dma_unmap_addr(&tnapi->tx_buffers[entry],
6127                                               mapping),
6128                                frag->size, PCI_DMA_TODEVICE);
6129         }
6130
6131         dev_kfree_skb(skb);
6132         return NETDEV_TX_OK;
6133 }
6134
6135 static inline void tg3_set_mtu(struct net_device *dev, struct tg3 *tp,
6136                                int new_mtu)
6137 {
6138         dev->mtu = new_mtu;
6139
6140         if (new_mtu > ETH_DATA_LEN) {
6141                 if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) {
6142                         tp->tg3_flags2 &= ~TG3_FLG2_TSO_CAPABLE;
6143                         ethtool_op_set_tso(dev, 0);
6144                 } else {
6145                         tp->tg3_flags |= TG3_FLAG_JUMBO_RING_ENABLE;
6146                 }
6147         } else {
6148                 if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)
6149                         tp->tg3_flags2 |= TG3_FLG2_TSO_CAPABLE;
6150                 tp->tg3_flags &= ~TG3_FLAG_JUMBO_RING_ENABLE;
6151         }
6152 }
6153
6154 static int tg3_change_mtu(struct net_device *dev, int new_mtu)
6155 {
6156         struct tg3 *tp = netdev_priv(dev);
6157         int err;
6158
6159         if (new_mtu < TG3_MIN_MTU || new_mtu > TG3_MAX_MTU(tp))
6160                 return -EINVAL;
6161
6162         if (!netif_running(dev)) {
6163                 /* We'll just catch it later when the
6164                  * device is up'd.
6165                  */
6166                 tg3_set_mtu(dev, tp, new_mtu);
6167                 return 0;
6168         }
6169
6170         tg3_phy_stop(tp);
6171
6172         tg3_netif_stop(tp);
6173
6174         tg3_full_lock(tp, 1);
6175
6176         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
6177
6178         tg3_set_mtu(dev, tp, new_mtu);
6179
6180         err = tg3_restart_hw(tp, 0);
6181
6182         if (!err)
6183                 tg3_netif_start(tp);
6184
6185         tg3_full_unlock(tp);
6186
6187         if (!err)
6188                 tg3_phy_start(tp);
6189
6190         return err;
6191 }
6192
6193 static void tg3_rx_prodring_free(struct tg3 *tp,
6194                                  struct tg3_rx_prodring_set *tpr)
6195 {
6196         int i;
6197
6198         if (tpr != &tp->napi[0].prodring) {
6199                 for (i = tpr->rx_std_cons_idx; i != tpr->rx_std_prod_idx;
6200                      i = (i + 1) & tp->rx_std_ring_mask)
6201                         tg3_rx_skb_free(tp, &tpr->rx_std_buffers[i],
6202                                         tp->rx_pkt_map_sz);
6203
6204                 if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) {
6205                         for (i = tpr->rx_jmb_cons_idx;
6206                              i != tpr->rx_jmb_prod_idx;
6207                              i = (i + 1) & tp->rx_jmb_ring_mask) {
6208                                 tg3_rx_skb_free(tp, &tpr->rx_jmb_buffers[i],
6209                                                 TG3_RX_JMB_MAP_SZ);
6210                         }
6211                 }
6212
6213                 return;
6214         }
6215
6216         for (i = 0; i <= tp->rx_std_ring_mask; i++)
6217                 tg3_rx_skb_free(tp, &tpr->rx_std_buffers[i],
6218                                 tp->rx_pkt_map_sz);
6219
6220         if ((tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) &&
6221             !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
6222                 for (i = 0; i <= tp->rx_jmb_ring_mask; i++)
6223                         tg3_rx_skb_free(tp, &tpr->rx_jmb_buffers[i],
6224                                         TG3_RX_JMB_MAP_SZ);
6225         }
6226 }
6227
6228 /* Initialize rx rings for packet processing.
6229  *
6230  * The chip has been shut down and the driver detached from
6231  * the networking, so no interrupts or new tx packets will
6232  * end up in the driver.  tp->{tx,}lock are held and thus
6233  * we may not sleep.
6234  */
6235 static int tg3_rx_prodring_alloc(struct tg3 *tp,
6236                                  struct tg3_rx_prodring_set *tpr)
6237 {
6238         u32 i, rx_pkt_dma_sz;
6239
6240         tpr->rx_std_cons_idx = 0;
6241         tpr->rx_std_prod_idx = 0;
6242         tpr->rx_jmb_cons_idx = 0;
6243         tpr->rx_jmb_prod_idx = 0;
6244
6245         if (tpr != &tp->napi[0].prodring) {
6246                 memset(&tpr->rx_std_buffers[0], 0,
6247                        TG3_RX_STD_BUFF_RING_SIZE(tp));
6248                 if (tpr->rx_jmb_buffers)
6249                         memset(&tpr->rx_jmb_buffers[0], 0,
6250                                TG3_RX_JMB_BUFF_RING_SIZE(tp));
6251                 goto done;
6252         }
6253
6254         /* Zero out all descriptors. */
6255         memset(tpr->rx_std, 0, TG3_RX_STD_RING_BYTES(tp));
6256
6257         rx_pkt_dma_sz = TG3_RX_STD_DMA_SZ;
6258         if ((tp->tg3_flags2 & TG3_FLG2_5780_CLASS) &&
6259             tp->dev->mtu > ETH_DATA_LEN)
6260                 rx_pkt_dma_sz = TG3_RX_JMB_DMA_SZ;
6261         tp->rx_pkt_map_sz = TG3_RX_DMA_TO_MAP_SZ(rx_pkt_dma_sz);
6262
6263         /* Initialize invariants of the rings, we only set this
6264          * stuff once.  This works because the card does not
6265          * write into the rx buffer posting rings.
6266          */
6267         for (i = 0; i <= tp->rx_std_ring_mask; i++) {
6268                 struct tg3_rx_buffer_desc *rxd;
6269
6270                 rxd = &tpr->rx_std[i];
6271                 rxd->idx_len = rx_pkt_dma_sz << RXD_LEN_SHIFT;
6272                 rxd->type_flags = (RXD_FLAG_END << RXD_FLAGS_SHIFT);
6273                 rxd->opaque = (RXD_OPAQUE_RING_STD |
6274                                (i << RXD_OPAQUE_INDEX_SHIFT));
6275         }
6276
6277         /* Now allocate fresh SKBs for each rx ring. */
6278         for (i = 0; i < tp->rx_pending; i++) {
6279                 if (tg3_alloc_rx_skb(tp, tpr, RXD_OPAQUE_RING_STD, i) < 0) {
6280                         netdev_warn(tp->dev,
6281                                     "Using a smaller RX standard ring. Only "
6282                                     "%d out of %d buffers were allocated "
6283                                     "successfully\n", i, tp->rx_pending);
6284                         if (i == 0)
6285                                 goto initfail;
6286                         tp->rx_pending = i;
6287                         break;
6288                 }
6289         }
6290
6291         if (!(tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) ||
6292             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
6293                 goto done;
6294
6295         memset(tpr->rx_jmb, 0, TG3_RX_JMB_RING_BYTES(tp));
6296
6297         if (!(tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE))
6298                 goto done;
6299
6300         for (i = 0; i <= tp->rx_jmb_ring_mask; i++) {
6301                 struct tg3_rx_buffer_desc *rxd;
6302
6303                 rxd = &tpr->rx_jmb[i].std;
6304                 rxd->idx_len = TG3_RX_JMB_DMA_SZ << RXD_LEN_SHIFT;
6305                 rxd->type_flags = (RXD_FLAG_END << RXD_FLAGS_SHIFT) |
6306                                   RXD_FLAG_JUMBO;
6307                 rxd->opaque = (RXD_OPAQUE_RING_JUMBO |
6308                        (i << RXD_OPAQUE_INDEX_SHIFT));
6309         }
6310
6311         for (i = 0; i < tp->rx_jumbo_pending; i++) {
6312                 if (tg3_alloc_rx_skb(tp, tpr, RXD_OPAQUE_RING_JUMBO, i) < 0) {
6313                         netdev_warn(tp->dev,
6314                                     "Using a smaller RX jumbo ring. Only %d "
6315                                     "out of %d buffers were allocated "
6316                                     "successfully\n", i, tp->rx_jumbo_pending);
6317                         if (i == 0)
6318                                 goto initfail;
6319                         tp->rx_jumbo_pending = i;
6320                         break;
6321                 }
6322         }
6323
6324 done:
6325         return 0;
6326
6327 initfail:
6328         tg3_rx_prodring_free(tp, tpr);
6329         return -ENOMEM;
6330 }
6331
6332 static void tg3_rx_prodring_fini(struct tg3 *tp,
6333                                  struct tg3_rx_prodring_set *tpr)
6334 {
6335         kfree(tpr->rx_std_buffers);
6336         tpr->rx_std_buffers = NULL;
6337         kfree(tpr->rx_jmb_buffers);
6338         tpr->rx_jmb_buffers = NULL;
6339         if (tpr->rx_std) {
6340                 pci_free_consistent(tp->pdev, TG3_RX_STD_RING_BYTES(tp),
6341                                     tpr->rx_std, tpr->rx_std_mapping);
6342                 tpr->rx_std = NULL;
6343         }
6344         if (tpr->rx_jmb) {
6345                 pci_free_consistent(tp->pdev, TG3_RX_JMB_RING_BYTES(tp),
6346                                     tpr->rx_jmb, tpr->rx_jmb_mapping);
6347                 tpr->rx_jmb = NULL;
6348         }
6349 }
6350
6351 static int tg3_rx_prodring_init(struct tg3 *tp,
6352                                 struct tg3_rx_prodring_set *tpr)
6353 {
6354         tpr->rx_std_buffers = kzalloc(TG3_RX_STD_BUFF_RING_SIZE(tp),
6355                                       GFP_KERNEL);
6356         if (!tpr->rx_std_buffers)
6357                 return -ENOMEM;
6358
6359         tpr->rx_std = pci_alloc_consistent(tp->pdev, TG3_RX_STD_RING_BYTES(tp),
6360                                            &tpr->rx_std_mapping);
6361         if (!tpr->rx_std)
6362                 goto err_out;
6363
6364         if ((tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) &&
6365             !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
6366                 tpr->rx_jmb_buffers = kzalloc(TG3_RX_JMB_BUFF_RING_SIZE(tp),
6367                                               GFP_KERNEL);
6368                 if (!tpr->rx_jmb_buffers)
6369                         goto err_out;
6370
6371                 tpr->rx_jmb = pci_alloc_consistent(tp->pdev,
6372                                                    TG3_RX_JMB_RING_BYTES(tp),
6373                                                    &tpr->rx_jmb_mapping);
6374                 if (!tpr->rx_jmb)
6375                         goto err_out;
6376         }
6377
6378         return 0;
6379
6380 err_out:
6381         tg3_rx_prodring_fini(tp, tpr);
6382         return -ENOMEM;
6383 }
6384
6385 /* Free up pending packets in all rx/tx rings.
6386  *
6387  * The chip has been shut down and the driver detached from
6388  * the networking, so no interrupts or new tx packets will
6389  * end up in the driver.  tp->{tx,}lock is not held and we are not
6390  * in an interrupt context and thus may sleep.
6391  */
6392 static void tg3_free_rings(struct tg3 *tp)
6393 {
6394         int i, j;
6395
6396         for (j = 0; j < tp->irq_cnt; j++) {
6397                 struct tg3_napi *tnapi = &tp->napi[j];
6398
6399                 tg3_rx_prodring_free(tp, &tnapi->prodring);
6400
6401                 if (!tnapi->tx_buffers)
6402                         continue;
6403
6404                 for (i = 0; i < TG3_TX_RING_SIZE; ) {
6405                         struct ring_info *txp;
6406                         struct sk_buff *skb;
6407                         unsigned int k;
6408
6409                         txp = &tnapi->tx_buffers[i];
6410                         skb = txp->skb;
6411
6412                         if (skb == NULL) {
6413                                 i++;
6414                                 continue;
6415                         }
6416
6417                         pci_unmap_single(tp->pdev,
6418                                          dma_unmap_addr(txp, mapping),
6419                                          skb_headlen(skb),
6420                                          PCI_DMA_TODEVICE);
6421                         txp->skb = NULL;
6422
6423                         i++;
6424
6425                         for (k = 0; k < skb_shinfo(skb)->nr_frags; k++) {
6426                                 txp = &tnapi->tx_buffers[i & (TG3_TX_RING_SIZE - 1)];
6427                                 pci_unmap_page(tp->pdev,
6428                                                dma_unmap_addr(txp, mapping),
6429                                                skb_shinfo(skb)->frags[k].size,
6430                                                PCI_DMA_TODEVICE);
6431                                 i++;
6432                         }
6433
6434                         dev_kfree_skb_any(skb);
6435                 }
6436         }
6437 }
6438
6439 /* Initialize tx/rx rings for packet processing.
6440  *
6441  * The chip has been shut down and the driver detached from
6442  * the networking, so no interrupts or new tx packets will
6443  * end up in the driver.  tp->{tx,}lock are held and thus
6444  * we may not sleep.
6445  */
6446 static int tg3_init_rings(struct tg3 *tp)
6447 {
6448         int i;
6449
6450         /* Free up all the SKBs. */
6451         tg3_free_rings(tp);
6452
6453         for (i = 0; i < tp->irq_cnt; i++) {
6454                 struct tg3_napi *tnapi = &tp->napi[i];
6455
6456                 tnapi->last_tag = 0;
6457                 tnapi->last_irq_tag = 0;
6458                 tnapi->hw_status->status = 0;
6459                 tnapi->hw_status->status_tag = 0;
6460                 memset(tnapi->hw_status, 0, TG3_HW_STATUS_SIZE);
6461
6462                 tnapi->tx_prod = 0;
6463                 tnapi->tx_cons = 0;
6464                 if (tnapi->tx_ring)
6465                         memset(tnapi->tx_ring, 0, TG3_TX_RING_BYTES);
6466
6467                 tnapi->rx_rcb_ptr = 0;
6468                 if (tnapi->rx_rcb)
6469                         memset(tnapi->rx_rcb, 0, TG3_RX_RCB_RING_BYTES(tp));
6470
6471                 if (tg3_rx_prodring_alloc(tp, &tnapi->prodring)) {
6472                         tg3_free_rings(tp);
6473                         return -ENOMEM;
6474                 }
6475         }
6476
6477         return 0;
6478 }
6479
6480 /*
6481  * Must not be invoked with interrupt sources disabled and
6482  * the hardware shutdown down.
6483  */
6484 static void tg3_free_consistent(struct tg3 *tp)
6485 {
6486         int i;
6487
6488         for (i = 0; i < tp->irq_cnt; i++) {
6489                 struct tg3_napi *tnapi = &tp->napi[i];
6490
6491                 if (tnapi->tx_ring) {
6492                         pci_free_consistent(tp->pdev, TG3_TX_RING_BYTES,
6493                                 tnapi->tx_ring, tnapi->tx_desc_mapping);
6494                         tnapi->tx_ring = NULL;
6495                 }
6496
6497                 kfree(tnapi->tx_buffers);
6498                 tnapi->tx_buffers = NULL;
6499
6500                 if (tnapi->rx_rcb) {
6501                         pci_free_consistent(tp->pdev, TG3_RX_RCB_RING_BYTES(tp),
6502                                             tnapi->rx_rcb,
6503                                             tnapi->rx_rcb_mapping);
6504                         tnapi->rx_rcb = NULL;
6505                 }
6506
6507                 tg3_rx_prodring_fini(tp, &tnapi->prodring);
6508
6509                 if (tnapi->hw_status) {
6510                         pci_free_consistent(tp->pdev, TG3_HW_STATUS_SIZE,
6511                                             tnapi->hw_status,
6512                                             tnapi->status_mapping);
6513                         tnapi->hw_status = NULL;
6514                 }
6515         }
6516
6517         if (tp->hw_stats) {
6518                 pci_free_consistent(tp->pdev, sizeof(struct tg3_hw_stats),
6519                                     tp->hw_stats, tp->stats_mapping);
6520                 tp->hw_stats = NULL;
6521         }
6522 }
6523
6524 /*
6525  * Must not be invoked with interrupt sources disabled and
6526  * the hardware shutdown down.  Can sleep.
6527  */
6528 static int tg3_alloc_consistent(struct tg3 *tp)
6529 {
6530         int i;
6531
6532         tp->hw_stats = pci_alloc_consistent(tp->pdev,
6533                                             sizeof(struct tg3_hw_stats),
6534                                             &tp->stats_mapping);
6535         if (!tp->hw_stats)
6536                 goto err_out;
6537
6538         memset(tp->hw_stats, 0, sizeof(struct tg3_hw_stats));
6539
6540         for (i = 0; i < tp->irq_cnt; i++) {
6541                 struct tg3_napi *tnapi = &tp->napi[i];
6542                 struct tg3_hw_status *sblk;
6543
6544                 tnapi->hw_status = pci_alloc_consistent(tp->pdev,
6545                                                         TG3_HW_STATUS_SIZE,
6546                                                         &tnapi->status_mapping);
6547                 if (!tnapi->hw_status)
6548                         goto err_out;
6549
6550                 memset(tnapi->hw_status, 0, TG3_HW_STATUS_SIZE);
6551                 sblk = tnapi->hw_status;
6552
6553                 if (tg3_rx_prodring_init(tp, &tnapi->prodring))
6554                         goto err_out;
6555
6556                 /* If multivector TSS is enabled, vector 0 does not handle
6557                  * tx interrupts.  Don't allocate any resources for it.
6558                  */
6559                 if ((!i && !(tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)) ||
6560                     (i && (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS))) {
6561                         tnapi->tx_buffers = kzalloc(sizeof(struct ring_info) *
6562                                                     TG3_TX_RING_SIZE,
6563                                                     GFP_KERNEL);
6564                         if (!tnapi->tx_buffers)
6565                                 goto err_out;
6566
6567                         tnapi->tx_ring = pci_alloc_consistent(tp->pdev,
6568                                                               TG3_TX_RING_BYTES,
6569                                                        &tnapi->tx_desc_mapping);
6570                         if (!tnapi->tx_ring)
6571                                 goto err_out;
6572                 }
6573
6574                 /*
6575                  * When RSS is enabled, the status block format changes
6576                  * slightly.  The "rx_jumbo_consumer", "reserved",
6577                  * and "rx_mini_consumer" members get mapped to the
6578                  * other three rx return ring producer indexes.
6579                  */
6580                 switch (i) {
6581                 default:
6582                         tnapi->rx_rcb_prod_idx = &sblk->idx[0].rx_producer;
6583                         break;
6584                 case 2:
6585                         tnapi->rx_rcb_prod_idx = &sblk->rx_jumbo_consumer;
6586                         break;
6587                 case 3:
6588                         tnapi->rx_rcb_prod_idx = &sblk->reserved;
6589                         break;
6590                 case 4:
6591                         tnapi->rx_rcb_prod_idx = &sblk->rx_mini_consumer;
6592                         break;
6593                 }
6594
6595                 /*
6596                  * If multivector RSS is enabled, vector 0 does not handle
6597                  * rx or tx interrupts.  Don't allocate any resources for it.
6598                  */
6599                 if (!i && (tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS))
6600                         continue;
6601
6602                 tnapi->rx_rcb = pci_alloc_consistent(tp->pdev,
6603                                                      TG3_RX_RCB_RING_BYTES(tp),
6604                                                      &tnapi->rx_rcb_mapping);
6605                 if (!tnapi->rx_rcb)
6606                         goto err_out;
6607
6608                 memset(tnapi->rx_rcb, 0, TG3_RX_RCB_RING_BYTES(tp));
6609         }
6610
6611         return 0;
6612
6613 err_out:
6614         tg3_free_consistent(tp);
6615         return -ENOMEM;
6616 }
6617
6618 #define MAX_WAIT_CNT 1000
6619
6620 /* To stop a block, clear the enable bit and poll till it
6621  * clears.  tp->lock is held.
6622  */
6623 static int tg3_stop_block(struct tg3 *tp, unsigned long ofs, u32 enable_bit, int silent)
6624 {
6625         unsigned int i;
6626         u32 val;
6627
6628         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
6629                 switch (ofs) {
6630                 case RCVLSC_MODE:
6631                 case DMAC_MODE:
6632                 case MBFREE_MODE:
6633                 case BUFMGR_MODE:
6634                 case MEMARB_MODE:
6635                         /* We can't enable/disable these bits of the
6636                          * 5705/5750, just say success.
6637                          */
6638                         return 0;
6639
6640                 default:
6641                         break;
6642                 }
6643         }
6644
6645         val = tr32(ofs);
6646         val &= ~enable_bit;
6647         tw32_f(ofs, val);
6648
6649         for (i = 0; i < MAX_WAIT_CNT; i++) {
6650                 udelay(100);
6651                 val = tr32(ofs);
6652                 if ((val & enable_bit) == 0)
6653                         break;
6654         }
6655
6656         if (i == MAX_WAIT_CNT && !silent) {
6657                 dev_err(&tp->pdev->dev,
6658                         "tg3_stop_block timed out, ofs=%lx enable_bit=%x\n",
6659                         ofs, enable_bit);
6660                 return -ENODEV;
6661         }
6662
6663         return 0;
6664 }
6665
6666 /* tp->lock is held. */
6667 static int tg3_abort_hw(struct tg3 *tp, int silent)
6668 {
6669         int i, err;
6670
6671         tg3_disable_ints(tp);
6672
6673         tp->rx_mode &= ~RX_MODE_ENABLE;
6674         tw32_f(MAC_RX_MODE, tp->rx_mode);
6675         udelay(10);
6676
6677         err  = tg3_stop_block(tp, RCVBDI_MODE, RCVBDI_MODE_ENABLE, silent);
6678         err |= tg3_stop_block(tp, RCVLPC_MODE, RCVLPC_MODE_ENABLE, silent);
6679         err |= tg3_stop_block(tp, RCVLSC_MODE, RCVLSC_MODE_ENABLE, silent);
6680         err |= tg3_stop_block(tp, RCVDBDI_MODE, RCVDBDI_MODE_ENABLE, silent);
6681         err |= tg3_stop_block(tp, RCVDCC_MODE, RCVDCC_MODE_ENABLE, silent);
6682         err |= tg3_stop_block(tp, RCVCC_MODE, RCVCC_MODE_ENABLE, silent);
6683
6684         err |= tg3_stop_block(tp, SNDBDS_MODE, SNDBDS_MODE_ENABLE, silent);
6685         err |= tg3_stop_block(tp, SNDBDI_MODE, SNDBDI_MODE_ENABLE, silent);
6686         err |= tg3_stop_block(tp, SNDDATAI_MODE, SNDDATAI_MODE_ENABLE, silent);
6687         err |= tg3_stop_block(tp, RDMAC_MODE, RDMAC_MODE_ENABLE, silent);
6688         err |= tg3_stop_block(tp, SNDDATAC_MODE, SNDDATAC_MODE_ENABLE, silent);
6689         err |= tg3_stop_block(tp, DMAC_MODE, DMAC_MODE_ENABLE, silent);
6690         err |= tg3_stop_block(tp, SNDBDC_MODE, SNDBDC_MODE_ENABLE, silent);
6691
6692         tp->mac_mode &= ~MAC_MODE_TDE_ENABLE;
6693         tw32_f(MAC_MODE, tp->mac_mode);
6694         udelay(40);
6695
6696         tp->tx_mode &= ~TX_MODE_ENABLE;
6697         tw32_f(MAC_TX_MODE, tp->tx_mode);
6698
6699         for (i = 0; i < MAX_WAIT_CNT; i++) {
6700                 udelay(100);
6701                 if (!(tr32(MAC_TX_MODE) & TX_MODE_ENABLE))
6702                         break;
6703         }
6704         if (i >= MAX_WAIT_CNT) {
6705                 dev_err(&tp->pdev->dev,
6706                         "%s timed out, TX_MODE_ENABLE will not clear "
6707                         "MAC_TX_MODE=%08x\n", __func__, tr32(MAC_TX_MODE));
6708                 err |= -ENODEV;
6709         }
6710
6711         err |= tg3_stop_block(tp, HOSTCC_MODE, HOSTCC_MODE_ENABLE, silent);
6712         err |= tg3_stop_block(tp, WDMAC_MODE, WDMAC_MODE_ENABLE, silent);
6713         err |= tg3_stop_block(tp, MBFREE_MODE, MBFREE_MODE_ENABLE, silent);
6714
6715         tw32(FTQ_RESET, 0xffffffff);
6716         tw32(FTQ_RESET, 0x00000000);
6717
6718         err |= tg3_stop_block(tp, BUFMGR_MODE, BUFMGR_MODE_ENABLE, silent);
6719         err |= tg3_stop_block(tp, MEMARB_MODE, MEMARB_MODE_ENABLE, silent);
6720
6721         for (i = 0; i < tp->irq_cnt; i++) {
6722                 struct tg3_napi *tnapi = &tp->napi[i];
6723                 if (tnapi->hw_status)
6724                         memset(tnapi->hw_status, 0, TG3_HW_STATUS_SIZE);
6725         }
6726         if (tp->hw_stats)
6727                 memset(tp->hw_stats, 0, sizeof(struct tg3_hw_stats));
6728
6729         return err;
6730 }
6731
6732 static void tg3_ape_send_event(struct tg3 *tp, u32 event)
6733 {
6734         int i;
6735         u32 apedata;
6736
6737         /* NCSI does not support APE events */
6738         if (tp->tg3_flags3 & TG3_FLG3_APE_HAS_NCSI)
6739                 return;
6740
6741         apedata = tg3_ape_read32(tp, TG3_APE_SEG_SIG);
6742         if (apedata != APE_SEG_SIG_MAGIC)
6743                 return;
6744
6745         apedata = tg3_ape_read32(tp, TG3_APE_FW_STATUS);
6746         if (!(apedata & APE_FW_STATUS_READY))
6747                 return;
6748
6749         /* Wait for up to 1 millisecond for APE to service previous event. */
6750         for (i = 0; i < 10; i++) {
6751                 if (tg3_ape_lock(tp, TG3_APE_LOCK_MEM))
6752                         return;
6753
6754                 apedata = tg3_ape_read32(tp, TG3_APE_EVENT_STATUS);
6755
6756                 if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING))
6757                         tg3_ape_write32(tp, TG3_APE_EVENT_STATUS,
6758                                         event | APE_EVENT_STATUS_EVENT_PENDING);
6759
6760                 tg3_ape_unlock(tp, TG3_APE_LOCK_MEM);
6761
6762                 if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING))
6763                         break;
6764
6765                 udelay(100);
6766         }
6767
6768         if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING))
6769                 tg3_ape_write32(tp, TG3_APE_EVENT, APE_EVENT_1);
6770 }
6771
6772 static void tg3_ape_driver_state_change(struct tg3 *tp, int kind)
6773 {
6774         u32 event;
6775         u32 apedata;
6776
6777         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE))
6778                 return;
6779
6780         switch (kind) {
6781         case RESET_KIND_INIT:
6782                 tg3_ape_write32(tp, TG3_APE_HOST_SEG_SIG,
6783                                 APE_HOST_SEG_SIG_MAGIC);
6784                 tg3_ape_write32(tp, TG3_APE_HOST_SEG_LEN,
6785                                 APE_HOST_SEG_LEN_MAGIC);
6786                 apedata = tg3_ape_read32(tp, TG3_APE_HOST_INIT_COUNT);
6787                 tg3_ape_write32(tp, TG3_APE_HOST_INIT_COUNT, ++apedata);
6788                 tg3_ape_write32(tp, TG3_APE_HOST_DRIVER_ID,
6789                         APE_HOST_DRIVER_ID_MAGIC(TG3_MAJ_NUM, TG3_MIN_NUM));
6790                 tg3_ape_write32(tp, TG3_APE_HOST_BEHAVIOR,
6791                                 APE_HOST_BEHAV_NO_PHYLOCK);
6792                 tg3_ape_write32(tp, TG3_APE_HOST_DRVR_STATE,
6793                                     TG3_APE_HOST_DRVR_STATE_START);
6794
6795                 event = APE_EVENT_STATUS_STATE_START;
6796                 break;
6797         case RESET_KIND_SHUTDOWN:
6798                 /* With the interface we are currently using,
6799                  * APE does not track driver state.  Wiping
6800                  * out the HOST SEGMENT SIGNATURE forces
6801                  * the APE to assume OS absent status.
6802                  */
6803                 tg3_ape_write32(tp, TG3_APE_HOST_SEG_SIG, 0x0);
6804
6805                 if (device_may_wakeup(&tp->pdev->dev) &&
6806                     (tp->tg3_flags & TG3_FLAG_WOL_ENABLE)) {
6807                         tg3_ape_write32(tp, TG3_APE_HOST_WOL_SPEED,
6808                                             TG3_APE_HOST_WOL_SPEED_AUTO);
6809                         apedata = TG3_APE_HOST_DRVR_STATE_WOL;
6810                 } else
6811                         apedata = TG3_APE_HOST_DRVR_STATE_UNLOAD;
6812
6813                 tg3_ape_write32(tp, TG3_APE_HOST_DRVR_STATE, apedata);
6814
6815                 event = APE_EVENT_STATUS_STATE_UNLOAD;
6816                 break;
6817         case RESET_KIND_SUSPEND:
6818                 event = APE_EVENT_STATUS_STATE_SUSPEND;
6819                 break;
6820         default:
6821                 return;
6822         }
6823
6824         event |= APE_EVENT_STATUS_DRIVER_EVNT | APE_EVENT_STATUS_STATE_CHNGE;
6825
6826         tg3_ape_send_event(tp, event);
6827 }
6828
6829 /* tp->lock is held. */
6830 static void tg3_write_sig_pre_reset(struct tg3 *tp, int kind)
6831 {
6832         tg3_write_mem(tp, NIC_SRAM_FIRMWARE_MBOX,
6833                       NIC_SRAM_FIRMWARE_MBOX_MAGIC1);
6834
6835         if (tp->tg3_flags2 & TG3_FLG2_ASF_NEW_HANDSHAKE) {
6836                 switch (kind) {
6837                 case RESET_KIND_INIT:
6838                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6839                                       DRV_STATE_START);
6840                         break;
6841
6842                 case RESET_KIND_SHUTDOWN:
6843                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6844                                       DRV_STATE_UNLOAD);
6845                         break;
6846
6847                 case RESET_KIND_SUSPEND:
6848                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6849                                       DRV_STATE_SUSPEND);
6850                         break;
6851
6852                 default:
6853                         break;
6854                 }
6855         }
6856
6857         if (kind == RESET_KIND_INIT ||
6858             kind == RESET_KIND_SUSPEND)
6859                 tg3_ape_driver_state_change(tp, kind);
6860 }
6861
6862 /* tp->lock is held. */
6863 static void tg3_write_sig_post_reset(struct tg3 *tp, int kind)
6864 {
6865         if (tp->tg3_flags2 & TG3_FLG2_ASF_NEW_HANDSHAKE) {
6866                 switch (kind) {
6867                 case RESET_KIND_INIT:
6868                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6869                                       DRV_STATE_START_DONE);
6870                         break;
6871
6872                 case RESET_KIND_SHUTDOWN:
6873                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6874                                       DRV_STATE_UNLOAD_DONE);
6875                         break;
6876
6877                 default:
6878                         break;
6879                 }
6880         }
6881
6882         if (kind == RESET_KIND_SHUTDOWN)
6883                 tg3_ape_driver_state_change(tp, kind);
6884 }
6885
6886 /* tp->lock is held. */
6887 static void tg3_write_sig_legacy(struct tg3 *tp, int kind)
6888 {
6889         if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) {
6890                 switch (kind) {
6891                 case RESET_KIND_INIT:
6892                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6893                                       DRV_STATE_START);
6894                         break;
6895
6896                 case RESET_KIND_SHUTDOWN:
6897                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6898                                       DRV_STATE_UNLOAD);
6899                         break;
6900
6901                 case RESET_KIND_SUSPEND:
6902                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6903                                       DRV_STATE_SUSPEND);
6904                         break;
6905
6906                 default:
6907                         break;
6908                 }
6909         }
6910 }
6911
6912 static int tg3_poll_fw(struct tg3 *tp)
6913 {
6914         int i;
6915         u32 val;
6916
6917         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
6918                 /* Wait up to 20ms for init done. */
6919                 for (i = 0; i < 200; i++) {
6920                         if (tr32(VCPU_STATUS) & VCPU_STATUS_INIT_DONE)
6921                                 return 0;
6922                         udelay(100);
6923                 }
6924                 return -ENODEV;
6925         }
6926
6927         /* Wait for firmware initialization to complete. */
6928         for (i = 0; i < 100000; i++) {
6929                 tg3_read_mem(tp, NIC_SRAM_FIRMWARE_MBOX, &val);
6930                 if (val == ~NIC_SRAM_FIRMWARE_MBOX_MAGIC1)
6931                         break;
6932                 udelay(10);
6933         }
6934
6935         /* Chip might not be fitted with firmware.  Some Sun onboard
6936          * parts are configured like that.  So don't signal the timeout
6937          * of the above loop as an error, but do report the lack of
6938          * running firmware once.
6939          */
6940         if (i >= 100000 &&
6941             !(tp->tg3_flags2 & TG3_FLG2_NO_FWARE_REPORTED)) {
6942                 tp->tg3_flags2 |= TG3_FLG2_NO_FWARE_REPORTED;
6943
6944                 netdev_info(tp->dev, "No firmware running\n");
6945         }
6946
6947         if (tp->pci_chip_rev_id == CHIPREV_ID_57765_A0) {
6948                 /* The 57765 A0 needs a little more
6949                  * time to do some important work.
6950                  */
6951                 mdelay(10);
6952         }
6953
6954         return 0;
6955 }
6956
6957 /* Save PCI command register before chip reset */
6958 static void tg3_save_pci_state(struct tg3 *tp)
6959 {
6960         pci_read_config_word(tp->pdev, PCI_COMMAND, &tp->pci_cmd);
6961 }
6962
6963 /* Restore PCI state after chip reset */
6964 static void tg3_restore_pci_state(struct tg3 *tp)
6965 {
6966         u32 val;
6967
6968         /* Re-enable indirect register accesses. */
6969         pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
6970                                tp->misc_host_ctrl);
6971
6972         /* Set MAX PCI retry to zero. */
6973         val = (PCISTATE_ROM_ENABLE | PCISTATE_ROM_RETRY_ENABLE);
6974         if (tp->pci_chip_rev_id == CHIPREV_ID_5704_A0 &&
6975             (tp->tg3_flags & TG3_FLAG_PCIX_MODE))
6976                 val |= PCISTATE_RETRY_SAME_DMA;
6977         /* Allow reads and writes to the APE register and memory space. */
6978         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
6979                 val |= PCISTATE_ALLOW_APE_CTLSPC_WR |
6980                        PCISTATE_ALLOW_APE_SHMEM_WR |
6981                        PCISTATE_ALLOW_APE_PSPACE_WR;
6982         pci_write_config_dword(tp->pdev, TG3PCI_PCISTATE, val);
6983
6984         pci_write_config_word(tp->pdev, PCI_COMMAND, tp->pci_cmd);
6985
6986         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785) {
6987                 if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS)
6988                         pcie_set_readrq(tp->pdev, tp->pcie_readrq);
6989                 else {
6990                         pci_write_config_byte(tp->pdev, PCI_CACHE_LINE_SIZE,
6991                                               tp->pci_cacheline_sz);
6992                         pci_write_config_byte(tp->pdev, PCI_LATENCY_TIMER,
6993                                               tp->pci_lat_timer);
6994                 }
6995         }
6996
6997         /* Make sure PCI-X relaxed ordering bit is clear. */
6998         if (tp->tg3_flags & TG3_FLAG_PCIX_MODE) {
6999                 u16 pcix_cmd;
7000
7001                 pci_read_config_word(tp->pdev, tp->pcix_cap + PCI_X_CMD,
7002                                      &pcix_cmd);
7003                 pcix_cmd &= ~PCI_X_CMD_ERO;
7004                 pci_write_config_word(tp->pdev, tp->pcix_cap + PCI_X_CMD,
7005                                       pcix_cmd);
7006         }
7007
7008         if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) {
7009
7010                 /* Chip reset on 5780 will reset MSI enable bit,
7011                  * so need to restore it.
7012                  */
7013                 if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
7014                         u16 ctrl;
7015
7016                         pci_read_config_word(tp->pdev,
7017                                              tp->msi_cap + PCI_MSI_FLAGS,
7018                                              &ctrl);
7019                         pci_write_config_word(tp->pdev,
7020                                               tp->msi_cap + PCI_MSI_FLAGS,
7021                                               ctrl | PCI_MSI_FLAGS_ENABLE);
7022                         val = tr32(MSGINT_MODE);
7023                         tw32(MSGINT_MODE, val | MSGINT_MODE_ENABLE);
7024                 }
7025         }
7026 }
7027
7028 static void tg3_stop_fw(struct tg3 *);
7029
7030 /* tp->lock is held. */
7031 static int tg3_chip_reset(struct tg3 *tp)
7032 {
7033         u32 val;
7034         void (*write_op)(struct tg3 *, u32, u32);
7035         int i, err;
7036
7037         tg3_nvram_lock(tp);
7038
7039         tg3_ape_lock(tp, TG3_APE_LOCK_GRC);
7040
7041         /* No matching tg3_nvram_unlock() after this because
7042          * chip reset below will undo the nvram lock.
7043          */
7044         tp->nvram_lock_cnt = 0;
7045
7046         /* GRC_MISC_CFG core clock reset will clear the memory
7047          * enable bit in PCI register 4 and the MSI enable bit
7048          * on some chips, so we save relevant registers here.
7049          */
7050         tg3_save_pci_state(tp);
7051
7052         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752 ||
7053             (tp->tg3_flags3 & TG3_FLG3_5755_PLUS))
7054                 tw32(GRC_FASTBOOT_PC, 0);
7055
7056         /*
7057          * We must avoid the readl() that normally takes place.
7058          * It locks machines, causes machine checks, and other
7059          * fun things.  So, temporarily disable the 5701
7060          * hardware workaround, while we do the reset.
7061          */
7062         write_op = tp->write32;
7063         if (write_op == tg3_write_flush_reg32)
7064                 tp->write32 = tg3_write32;
7065
7066         /* Prevent the irq handler from reading or writing PCI registers
7067          * during chip reset when the memory enable bit in the PCI command
7068          * register may be cleared.  The chip does not generate interrupt
7069          * at this time, but the irq handler may still be called due to irq
7070          * sharing or irqpoll.
7071          */
7072         tp->tg3_flags |= TG3_FLAG_CHIP_RESETTING;
7073         for (i = 0; i < tp->irq_cnt; i++) {
7074                 struct tg3_napi *tnapi = &tp->napi[i];
7075                 if (tnapi->hw_status) {
7076                         tnapi->hw_status->status = 0;
7077                         tnapi->hw_status->status_tag = 0;
7078                 }
7079                 tnapi->last_tag = 0;
7080                 tnapi->last_irq_tag = 0;
7081         }
7082         smp_mb();
7083
7084         for (i = 0; i < tp->irq_cnt; i++)
7085                 synchronize_irq(tp->napi[i].irq_vec);
7086
7087         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780) {
7088                 val = tr32(TG3_PCIE_LNKCTL) & ~TG3_PCIE_LNKCTL_L1_PLL_PD_EN;
7089                 tw32(TG3_PCIE_LNKCTL, val | TG3_PCIE_LNKCTL_L1_PLL_PD_DIS);
7090         }
7091
7092         /* do the reset */
7093         val = GRC_MISC_CFG_CORECLK_RESET;
7094
7095         if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
7096                 /* Force PCIe 1.0a mode */
7097                 if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785 &&
7098                     !(tp->tg3_flags3 & TG3_FLG3_5717_PLUS) &&
7099                     tr32(TG3_PCIE_PHY_TSTCTL) ==
7100                     (TG3_PCIE_PHY_TSTCTL_PCIE10 | TG3_PCIE_PHY_TSTCTL_PSCRAM))
7101                         tw32(TG3_PCIE_PHY_TSTCTL, TG3_PCIE_PHY_TSTCTL_PSCRAM);
7102
7103                 if (tp->pci_chip_rev_id != CHIPREV_ID_5750_A0) {
7104                         tw32(GRC_MISC_CFG, (1 << 29));
7105                         val |= (1 << 29);
7106                 }
7107         }
7108
7109         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
7110                 tw32(VCPU_STATUS, tr32(VCPU_STATUS) | VCPU_STATUS_DRV_RESET);
7111                 tw32(GRC_VCPU_EXT_CTRL,
7112                      tr32(GRC_VCPU_EXT_CTRL) & ~GRC_VCPU_EXT_CTRL_HALT_CPU);
7113         }
7114
7115         /* Manage gphy power for all CPMU absent PCIe devices. */
7116         if ((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
7117             !(tp->tg3_flags & TG3_FLAG_CPMU_PRESENT))
7118                 val |= GRC_MISC_CFG_KEEP_GPHY_POWER;
7119
7120         tw32(GRC_MISC_CFG, val);
7121
7122         /* restore 5701 hardware bug workaround write method */
7123         tp->write32 = write_op;
7124
7125         /* Unfortunately, we have to delay before the PCI read back.
7126          * Some 575X chips even will not respond to a PCI cfg access
7127          * when the reset command is given to the chip.
7128          *
7129          * How do these hardware designers expect things to work
7130          * properly if the PCI write is posted for a long period
7131          * of time?  It is always necessary to have some method by
7132          * which a register read back can occur to push the write
7133          * out which does the reset.
7134          *
7135          * For most tg3 variants the trick below was working.
7136          * Ho hum...
7137          */
7138         udelay(120);
7139
7140         /* Flush PCI posted writes.  The normal MMIO registers
7141          * are inaccessible at this time so this is the only
7142          * way to make this reliably (actually, this is no longer
7143          * the case, see above).  I tried to use indirect
7144          * register read/write but this upset some 5701 variants.
7145          */
7146         pci_read_config_dword(tp->pdev, PCI_COMMAND, &val);
7147
7148         udelay(120);
7149
7150         if ((tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) && tp->pcie_cap) {
7151                 u16 val16;
7152
7153                 if (tp->pci_chip_rev_id == CHIPREV_ID_5750_A0) {
7154                         int i;
7155                         u32 cfg_val;
7156
7157                         /* Wait for link training to complete.  */
7158                         for (i = 0; i < 5000; i++)
7159                                 udelay(100);
7160
7161                         pci_read_config_dword(tp->pdev, 0xc4, &cfg_val);
7162                         pci_write_config_dword(tp->pdev, 0xc4,
7163                                                cfg_val | (1 << 15));
7164                 }
7165
7166                 /* Clear the "no snoop" and "relaxed ordering" bits. */
7167                 pci_read_config_word(tp->pdev,
7168                                      tp->pcie_cap + PCI_EXP_DEVCTL,
7169                                      &val16);
7170                 val16 &= ~(PCI_EXP_DEVCTL_RELAX_EN |
7171                            PCI_EXP_DEVCTL_NOSNOOP_EN);
7172                 /*
7173                  * Older PCIe devices only support the 128 byte
7174                  * MPS setting.  Enforce the restriction.
7175                  */
7176                 if (!(tp->tg3_flags & TG3_FLAG_CPMU_PRESENT))
7177                         val16 &= ~PCI_EXP_DEVCTL_PAYLOAD;
7178                 pci_write_config_word(tp->pdev,
7179                                       tp->pcie_cap + PCI_EXP_DEVCTL,
7180                                       val16);
7181
7182                 pcie_set_readrq(tp->pdev, tp->pcie_readrq);
7183
7184                 /* Clear error status */
7185                 pci_write_config_word(tp->pdev,
7186                                       tp->pcie_cap + PCI_EXP_DEVSTA,
7187                                       PCI_EXP_DEVSTA_CED |
7188                                       PCI_EXP_DEVSTA_NFED |
7189                                       PCI_EXP_DEVSTA_FED |
7190                                       PCI_EXP_DEVSTA_URD);
7191         }
7192
7193         tg3_restore_pci_state(tp);
7194
7195         tp->tg3_flags &= ~TG3_FLAG_CHIP_RESETTING;
7196
7197         val = 0;
7198         if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)
7199                 val = tr32(MEMARB_MODE);
7200         tw32(MEMARB_MODE, val | MEMARB_MODE_ENABLE);
7201
7202         if (tp->pci_chip_rev_id == CHIPREV_ID_5750_A3) {
7203                 tg3_stop_fw(tp);
7204                 tw32(0x5000, 0x400);
7205         }
7206
7207         tw32(GRC_MODE, tp->grc_mode);
7208
7209         if (tp->pci_chip_rev_id == CHIPREV_ID_5705_A0) {
7210                 val = tr32(0xc4);
7211
7212                 tw32(0xc4, val | (1 << 15));
7213         }
7214
7215         if ((tp->nic_sram_data_cfg & NIC_SRAM_DATA_CFG_MINI_PCI) != 0 &&
7216             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
7217                 tp->pci_clock_ctrl |= CLOCK_CTRL_CLKRUN_OENABLE;
7218                 if (tp->pci_chip_rev_id == CHIPREV_ID_5705_A0)
7219                         tp->pci_clock_ctrl |= CLOCK_CTRL_FORCE_CLKRUN;
7220                 tw32(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl);
7221         }
7222
7223         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
7224                 tp->mac_mode = MAC_MODE_APE_TX_EN |
7225                                MAC_MODE_APE_RX_EN |
7226                                MAC_MODE_TDE_ENABLE;
7227
7228         if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES) {
7229                 tp->mac_mode |= MAC_MODE_PORT_MODE_TBI;
7230                 val = tp->mac_mode;
7231         } else if (tp->phy_flags & TG3_PHYFLG_MII_SERDES) {
7232                 tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
7233                 val = tp->mac_mode;
7234         } else
7235                 val = 0;
7236
7237         tw32_f(MAC_MODE, val);
7238         udelay(40);
7239
7240         tg3_ape_unlock(tp, TG3_APE_LOCK_GRC);
7241
7242         err = tg3_poll_fw(tp);
7243         if (err)
7244                 return err;
7245
7246         tg3_mdio_start(tp);
7247
7248         if ((tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) &&
7249             tp->pci_chip_rev_id != CHIPREV_ID_5750_A0 &&
7250             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785 &&
7251             !(tp->tg3_flags3 & TG3_FLG3_5717_PLUS)) {
7252                 val = tr32(0x7c00);
7253
7254                 tw32(0x7c00, val | (1 << 25));
7255         }
7256
7257         /* Reprobe ASF enable state.  */
7258         tp->tg3_flags &= ~TG3_FLAG_ENABLE_ASF;
7259         tp->tg3_flags2 &= ~TG3_FLG2_ASF_NEW_HANDSHAKE;
7260         tg3_read_mem(tp, NIC_SRAM_DATA_SIG, &val);
7261         if (val == NIC_SRAM_DATA_SIG_MAGIC) {
7262                 u32 nic_cfg;
7263
7264                 tg3_read_mem(tp, NIC_SRAM_DATA_CFG, &nic_cfg);
7265                 if (nic_cfg & NIC_SRAM_DATA_CFG_ASF_ENABLE) {
7266                         tp->tg3_flags |= TG3_FLAG_ENABLE_ASF;
7267                         tp->last_event_jiffies = jiffies;
7268                         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS)
7269                                 tp->tg3_flags2 |= TG3_FLG2_ASF_NEW_HANDSHAKE;
7270                 }
7271         }
7272
7273         return 0;
7274 }
7275
7276 /* tp->lock is held. */
7277 static void tg3_stop_fw(struct tg3 *tp)
7278 {
7279         if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) &&
7280            !(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)) {
7281                 /* Wait for RX cpu to ACK the previous event. */
7282                 tg3_wait_for_event_ack(tp);
7283
7284                 tg3_write_mem(tp, NIC_SRAM_FW_CMD_MBOX, FWCMD_NICDRV_PAUSE_FW);
7285
7286                 tg3_generate_fw_event(tp);
7287
7288                 /* Wait for RX cpu to ACK this event. */
7289                 tg3_wait_for_event_ack(tp);
7290         }
7291 }
7292
7293 /* tp->lock is held. */
7294 static int tg3_halt(struct tg3 *tp, int kind, int silent)
7295 {
7296         int err;
7297
7298         tg3_stop_fw(tp);
7299
7300         tg3_write_sig_pre_reset(tp, kind);
7301
7302         tg3_abort_hw(tp, silent);
7303         err = tg3_chip_reset(tp);
7304
7305         __tg3_set_mac_addr(tp, 0);
7306
7307         tg3_write_sig_legacy(tp, kind);
7308         tg3_write_sig_post_reset(tp, kind);
7309
7310         if (err)
7311                 return err;
7312
7313         return 0;
7314 }
7315
7316 #define RX_CPU_SCRATCH_BASE     0x30000
7317 #define RX_CPU_SCRATCH_SIZE     0x04000
7318 #define TX_CPU_SCRATCH_BASE     0x34000
7319 #define TX_CPU_SCRATCH_SIZE     0x04000
7320
7321 /* tp->lock is held. */
7322 static int tg3_halt_cpu(struct tg3 *tp, u32 offset)
7323 {
7324         int i;
7325
7326         BUG_ON(offset == TX_CPU_BASE &&
7327             (tp->tg3_flags2 & TG3_FLG2_5705_PLUS));
7328
7329         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
7330                 u32 val = tr32(GRC_VCPU_EXT_CTRL);
7331
7332                 tw32(GRC_VCPU_EXT_CTRL, val | GRC_VCPU_EXT_CTRL_HALT_CPU);
7333                 return 0;
7334         }
7335         if (offset == RX_CPU_BASE) {
7336                 for (i = 0; i < 10000; i++) {
7337                         tw32(offset + CPU_STATE, 0xffffffff);
7338                         tw32(offset + CPU_MODE,  CPU_MODE_HALT);
7339                         if (tr32(offset + CPU_MODE) & CPU_MODE_HALT)
7340                                 break;
7341                 }
7342
7343                 tw32(offset + CPU_STATE, 0xffffffff);
7344                 tw32_f(offset + CPU_MODE,  CPU_MODE_HALT);
7345                 udelay(10);
7346         } else {
7347                 for (i = 0; i < 10000; i++) {
7348                         tw32(offset + CPU_STATE, 0xffffffff);
7349                         tw32(offset + CPU_MODE,  CPU_MODE_HALT);
7350                         if (tr32(offset + CPU_MODE) & CPU_MODE_HALT)
7351                                 break;
7352                 }
7353         }
7354
7355         if (i >= 10000) {
7356                 netdev_err(tp->dev, "%s timed out, %s CPU\n",
7357                            __func__, offset == RX_CPU_BASE ? "RX" : "TX");
7358                 return -ENODEV;
7359         }
7360
7361         /* Clear firmware's nvram arbitration. */
7362         if (tp->tg3_flags & TG3_FLAG_NVRAM)
7363                 tw32(NVRAM_SWARB, SWARB_REQ_CLR0);
7364         return 0;
7365 }
7366
7367 struct fw_info {
7368         unsigned int fw_base;
7369         unsigned int fw_len;
7370         const __be32 *fw_data;
7371 };
7372
7373 /* tp->lock is held. */
7374 static int tg3_load_firmware_cpu(struct tg3 *tp, u32 cpu_base, u32 cpu_scratch_base,
7375                                  int cpu_scratch_size, struct fw_info *info)
7376 {
7377         int err, lock_err, i;
7378         void (*write_op)(struct tg3 *, u32, u32);
7379
7380         if (cpu_base == TX_CPU_BASE &&
7381             (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
7382                 netdev_err(tp->dev,
7383                            "%s: Trying to load TX cpu firmware which is 5705\n",
7384                            __func__);
7385                 return -EINVAL;
7386         }
7387
7388         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
7389                 write_op = tg3_write_mem;
7390         else
7391                 write_op = tg3_write_indirect_reg32;
7392
7393         /* It is possible that bootcode is still loading at this point.
7394          * Get the nvram lock first before halting the cpu.
7395          */
7396         lock_err = tg3_nvram_lock(tp);
7397         err = tg3_halt_cpu(tp, cpu_base);
7398         if (!lock_err)
7399                 tg3_nvram_unlock(tp);
7400         if (err)
7401                 goto out;
7402
7403         for (i = 0; i < cpu_scratch_size; i += sizeof(u32))
7404                 write_op(tp, cpu_scratch_base + i, 0);
7405         tw32(cpu_base + CPU_STATE, 0xffffffff);
7406         tw32(cpu_base + CPU_MODE, tr32(cpu_base+CPU_MODE)|CPU_MODE_HALT);
7407         for (i = 0; i < (info->fw_len / sizeof(u32)); i++)
7408                 write_op(tp, (cpu_scratch_base +
7409                               (info->fw_base & 0xffff) +
7410                               (i * sizeof(u32))),
7411                               be32_to_cpu(info->fw_data[i]));
7412
7413         err = 0;
7414
7415 out:
7416         return err;
7417 }
7418
7419 /* tp->lock is held. */
7420 static int tg3_load_5701_a0_firmware_fix(struct tg3 *tp)
7421 {
7422         struct fw_info info;
7423         const __be32 *fw_data;
7424         int err, i;
7425
7426         fw_data = (void *)tp->fw->data;
7427
7428         /* Firmware blob starts with version numbers, followed by
7429            start address and length. We are setting complete length.
7430            length = end_address_of_bss - start_address_of_text.
7431            Remainder is the blob to be loaded contiguously
7432            from start address. */
7433
7434         info.fw_base = be32_to_cpu(fw_data[1]);
7435         info.fw_len = tp->fw->size - 12;
7436         info.fw_data = &fw_data[3];
7437
7438         err = tg3_load_firmware_cpu(tp, RX_CPU_BASE,
7439                                     RX_CPU_SCRATCH_BASE, RX_CPU_SCRATCH_SIZE,
7440                                     &info);
7441         if (err)
7442                 return err;
7443
7444         err = tg3_load_firmware_cpu(tp, TX_CPU_BASE,
7445                                     TX_CPU_SCRATCH_BASE, TX_CPU_SCRATCH_SIZE,
7446                                     &info);
7447         if (err)
7448                 return err;
7449
7450         /* Now startup only the RX cpu. */
7451         tw32(RX_CPU_BASE + CPU_STATE, 0xffffffff);
7452         tw32_f(RX_CPU_BASE + CPU_PC, info.fw_base);
7453
7454         for (i = 0; i < 5; i++) {
7455                 if (tr32(RX_CPU_BASE + CPU_PC) == info.fw_base)
7456                         break;
7457                 tw32(RX_CPU_BASE + CPU_STATE, 0xffffffff);
7458                 tw32(RX_CPU_BASE + CPU_MODE,  CPU_MODE_HALT);
7459                 tw32_f(RX_CPU_BASE + CPU_PC, info.fw_base);
7460                 udelay(1000);
7461         }
7462         if (i >= 5) {
7463                 netdev_err(tp->dev, "%s fails to set RX CPU PC, is %08x "
7464                            "should be %08x\n", __func__,
7465                            tr32(RX_CPU_BASE + CPU_PC), info.fw_base);
7466                 return -ENODEV;
7467         }
7468         tw32(RX_CPU_BASE + CPU_STATE, 0xffffffff);
7469         tw32_f(RX_CPU_BASE + CPU_MODE,  0x00000000);
7470
7471         return 0;
7472 }
7473
7474 /* 5705 needs a special version of the TSO firmware.  */
7475
7476 /* tp->lock is held. */
7477 static int tg3_load_tso_firmware(struct tg3 *tp)
7478 {
7479         struct fw_info info;
7480         const __be32 *fw_data;
7481         unsigned long cpu_base, cpu_scratch_base, cpu_scratch_size;
7482         int err, i;
7483
7484         if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
7485                 return 0;
7486
7487         fw_data = (void *)tp->fw->data;
7488
7489         /* Firmware blob starts with version numbers, followed by
7490            start address and length. We are setting complete length.
7491            length = end_address_of_bss - start_address_of_text.
7492            Remainder is the blob to be loaded contiguously
7493            from start address. */
7494
7495         info.fw_base = be32_to_cpu(fw_data[1]);
7496         cpu_scratch_size = tp->fw_len;
7497         info.fw_len = tp->fw->size - 12;
7498         info.fw_data = &fw_data[3];
7499
7500         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
7501                 cpu_base = RX_CPU_BASE;
7502                 cpu_scratch_base = NIC_SRAM_MBUF_POOL_BASE5705;
7503         } else {
7504                 cpu_base = TX_CPU_BASE;
7505                 cpu_scratch_base = TX_CPU_SCRATCH_BASE;
7506                 cpu_scratch_size = TX_CPU_SCRATCH_SIZE;
7507         }
7508
7509         err = tg3_load_firmware_cpu(tp, cpu_base,
7510                                     cpu_scratch_base, cpu_scratch_size,
7511                                     &info);
7512         if (err)
7513                 return err;
7514
7515         /* Now startup the cpu. */
7516         tw32(cpu_base + CPU_STATE, 0xffffffff);
7517         tw32_f(cpu_base + CPU_PC, info.fw_base);
7518
7519         for (i = 0; i < 5; i++) {
7520                 if (tr32(cpu_base + CPU_PC) == info.fw_base)
7521                         break;
7522                 tw32(cpu_base + CPU_STATE, 0xffffffff);
7523                 tw32(cpu_base + CPU_MODE,  CPU_MODE_HALT);
7524                 tw32_f(cpu_base + CPU_PC, info.fw_base);
7525                 udelay(1000);
7526         }
7527         if (i >= 5) {
7528                 netdev_err(tp->dev,
7529                            "%s fails to set CPU PC, is %08x should be %08x\n",
7530                            __func__, tr32(cpu_base + CPU_PC), info.fw_base);
7531                 return -ENODEV;
7532         }
7533         tw32(cpu_base + CPU_STATE, 0xffffffff);
7534         tw32_f(cpu_base + CPU_MODE,  0x00000000);
7535         return 0;
7536 }
7537
7538
7539 static int tg3_set_mac_addr(struct net_device *dev, void *p)
7540 {
7541         struct tg3 *tp = netdev_priv(dev);
7542         struct sockaddr *addr = p;
7543         int err = 0, skip_mac_1 = 0;
7544
7545         if (!is_valid_ether_addr(addr->sa_data))
7546                 return -EINVAL;
7547
7548         memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
7549
7550         if (!netif_running(dev))
7551                 return 0;
7552
7553         if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) {
7554                 u32 addr0_high, addr0_low, addr1_high, addr1_low;
7555
7556                 addr0_high = tr32(MAC_ADDR_0_HIGH);
7557                 addr0_low = tr32(MAC_ADDR_0_LOW);
7558                 addr1_high = tr32(MAC_ADDR_1_HIGH);
7559                 addr1_low = tr32(MAC_ADDR_1_LOW);
7560
7561                 /* Skip MAC addr 1 if ASF is using it. */
7562                 if ((addr0_high != addr1_high || addr0_low != addr1_low) &&
7563                     !(addr1_high == 0 && addr1_low == 0))
7564                         skip_mac_1 = 1;
7565         }
7566         spin_lock_bh(&tp->lock);
7567         __tg3_set_mac_addr(tp, skip_mac_1);
7568         spin_unlock_bh(&tp->lock);
7569
7570         return err;
7571 }
7572
7573 /* tp->lock is held. */
7574 static void tg3_set_bdinfo(struct tg3 *tp, u32 bdinfo_addr,
7575                            dma_addr_t mapping, u32 maxlen_flags,
7576                            u32 nic_addr)
7577 {
7578         tg3_write_mem(tp,
7579                       (bdinfo_addr + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_HIGH),
7580                       ((u64) mapping >> 32));
7581         tg3_write_mem(tp,
7582                       (bdinfo_addr + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_LOW),
7583                       ((u64) mapping & 0xffffffff));
7584         tg3_write_mem(tp,
7585                       (bdinfo_addr + TG3_BDINFO_MAXLEN_FLAGS),
7586                        maxlen_flags);
7587
7588         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
7589                 tg3_write_mem(tp,
7590                               (bdinfo_addr + TG3_BDINFO_NIC_ADDR),
7591                               nic_addr);
7592 }
7593
7594 static void __tg3_set_rx_mode(struct net_device *);
7595 static void __tg3_set_coalesce(struct tg3 *tp, struct ethtool_coalesce *ec)
7596 {
7597         int i;
7598
7599         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)) {
7600                 tw32(HOSTCC_TXCOL_TICKS, ec->tx_coalesce_usecs);
7601                 tw32(HOSTCC_TXMAX_FRAMES, ec->tx_max_coalesced_frames);
7602                 tw32(HOSTCC_TXCOAL_MAXF_INT, ec->tx_max_coalesced_frames_irq);
7603         } else {
7604                 tw32(HOSTCC_TXCOL_TICKS, 0);
7605                 tw32(HOSTCC_TXMAX_FRAMES, 0);
7606                 tw32(HOSTCC_TXCOAL_MAXF_INT, 0);
7607         }
7608
7609         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS)) {
7610                 tw32(HOSTCC_RXCOL_TICKS, ec->rx_coalesce_usecs);
7611                 tw32(HOSTCC_RXMAX_FRAMES, ec->rx_max_coalesced_frames);
7612                 tw32(HOSTCC_RXCOAL_MAXF_INT, ec->rx_max_coalesced_frames_irq);
7613         } else {
7614                 tw32(HOSTCC_RXCOL_TICKS, 0);
7615                 tw32(HOSTCC_RXMAX_FRAMES, 0);
7616                 tw32(HOSTCC_RXCOAL_MAXF_INT, 0);
7617         }
7618
7619         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
7620                 u32 val = ec->stats_block_coalesce_usecs;
7621
7622                 tw32(HOSTCC_RXCOAL_TICK_INT, ec->rx_coalesce_usecs_irq);
7623                 tw32(HOSTCC_TXCOAL_TICK_INT, ec->tx_coalesce_usecs_irq);
7624
7625                 if (!netif_carrier_ok(tp->dev))
7626                         val = 0;
7627
7628                 tw32(HOSTCC_STAT_COAL_TICKS, val);
7629         }
7630
7631         for (i = 0; i < tp->irq_cnt - 1; i++) {
7632                 u32 reg;
7633
7634                 reg = HOSTCC_RXCOL_TICKS_VEC1 + i * 0x18;
7635                 tw32(reg, ec->rx_coalesce_usecs);
7636                 reg = HOSTCC_RXMAX_FRAMES_VEC1 + i * 0x18;
7637                 tw32(reg, ec->rx_max_coalesced_frames);
7638                 reg = HOSTCC_RXCOAL_MAXF_INT_VEC1 + i * 0x18;
7639                 tw32(reg, ec->rx_max_coalesced_frames_irq);
7640
7641                 if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS) {
7642                         reg = HOSTCC_TXCOL_TICKS_VEC1 + i * 0x18;
7643                         tw32(reg, ec->tx_coalesce_usecs);
7644                         reg = HOSTCC_TXMAX_FRAMES_VEC1 + i * 0x18;
7645                         tw32(reg, ec->tx_max_coalesced_frames);
7646                         reg = HOSTCC_TXCOAL_MAXF_INT_VEC1 + i * 0x18;
7647                         tw32(reg, ec->tx_max_coalesced_frames_irq);
7648                 }
7649         }
7650
7651         for (; i < tp->irq_max - 1; i++) {
7652                 tw32(HOSTCC_RXCOL_TICKS_VEC1 + i * 0x18, 0);
7653                 tw32(HOSTCC_RXMAX_FRAMES_VEC1 + i * 0x18, 0);
7654                 tw32(HOSTCC_RXCOAL_MAXF_INT_VEC1 + i * 0x18, 0);
7655
7656                 if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS) {
7657                         tw32(HOSTCC_TXCOL_TICKS_VEC1 + i * 0x18, 0);
7658                         tw32(HOSTCC_TXMAX_FRAMES_VEC1 + i * 0x18, 0);
7659                         tw32(HOSTCC_TXCOAL_MAXF_INT_VEC1 + i * 0x18, 0);
7660                 }
7661         }
7662 }
7663
7664 /* tp->lock is held. */
7665 static void tg3_rings_reset(struct tg3 *tp)
7666 {
7667         int i;
7668         u32 stblk, txrcb, rxrcb, limit;
7669         struct tg3_napi *tnapi = &tp->napi[0];
7670
7671         /* Disable all transmit rings but the first. */
7672         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
7673                 limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE * 16;
7674         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
7675                  GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719)
7676                 limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE * 4;
7677         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
7678                 limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE * 2;
7679         else
7680                 limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE;
7681
7682         for (txrcb = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE;
7683              txrcb < limit; txrcb += TG3_BDINFO_SIZE)
7684                 tg3_write_mem(tp, txrcb + TG3_BDINFO_MAXLEN_FLAGS,
7685                               BDINFO_FLAGS_DISABLED);
7686
7687
7688         /* Disable all receive return rings but the first. */
7689         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
7690             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719)
7691                 limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE * 17;
7692         else if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
7693                 limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE * 16;
7694         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 ||
7695                  GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
7696                 limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE * 4;
7697         else
7698                 limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE;
7699
7700         for (rxrcb = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE;
7701              rxrcb < limit; rxrcb += TG3_BDINFO_SIZE)
7702                 tg3_write_mem(tp, rxrcb + TG3_BDINFO_MAXLEN_FLAGS,
7703                               BDINFO_FLAGS_DISABLED);
7704
7705         /* Disable interrupts */
7706         tw32_mailbox_f(tp->napi[0].int_mbox, 1);
7707
7708         /* Zero mailbox registers. */
7709         if (tp->tg3_flags & TG3_FLAG_SUPPORT_MSIX) {
7710                 for (i = 1; i < tp->irq_max; i++) {
7711                         tp->napi[i].tx_prod = 0;
7712                         tp->napi[i].tx_cons = 0;
7713                         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
7714                                 tw32_mailbox(tp->napi[i].prodmbox, 0);
7715                         tw32_rx_mbox(tp->napi[i].consmbox, 0);
7716                         tw32_mailbox_f(tp->napi[i].int_mbox, 1);
7717                 }
7718                 if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS))
7719                         tw32_mailbox(tp->napi[0].prodmbox, 0);
7720         } else {
7721                 tp->napi[0].tx_prod = 0;
7722                 tp->napi[0].tx_cons = 0;
7723                 tw32_mailbox(tp->napi[0].prodmbox, 0);
7724                 tw32_rx_mbox(tp->napi[0].consmbox, 0);
7725         }
7726
7727         /* Make sure the NIC-based send BD rings are disabled. */
7728         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
7729                 u32 mbox = MAILBOX_SNDNIC_PROD_IDX_0 + TG3_64BIT_REG_LOW;
7730                 for (i = 0; i < 16; i++)
7731                         tw32_tx_mbox(mbox + i * 8, 0);
7732         }
7733
7734         txrcb = NIC_SRAM_SEND_RCB;
7735         rxrcb = NIC_SRAM_RCV_RET_RCB;
7736
7737         /* Clear status block in ram. */
7738         memset(tnapi->hw_status, 0, TG3_HW_STATUS_SIZE);
7739
7740         /* Set status block DMA address */
7741         tw32(HOSTCC_STATUS_BLK_HOST_ADDR + TG3_64BIT_REG_HIGH,
7742              ((u64) tnapi->status_mapping >> 32));
7743         tw32(HOSTCC_STATUS_BLK_HOST_ADDR + TG3_64BIT_REG_LOW,
7744              ((u64) tnapi->status_mapping & 0xffffffff));
7745
7746         if (tnapi->tx_ring) {
7747                 tg3_set_bdinfo(tp, txrcb, tnapi->tx_desc_mapping,
7748                                (TG3_TX_RING_SIZE <<
7749                                 BDINFO_FLAGS_MAXLEN_SHIFT),
7750                                NIC_SRAM_TX_BUFFER_DESC);
7751                 txrcb += TG3_BDINFO_SIZE;
7752         }
7753
7754         if (tnapi->rx_rcb) {
7755                 tg3_set_bdinfo(tp, rxrcb, tnapi->rx_rcb_mapping,
7756                                (tp->rx_ret_ring_mask + 1) <<
7757                                 BDINFO_FLAGS_MAXLEN_SHIFT, 0);
7758                 rxrcb += TG3_BDINFO_SIZE;
7759         }
7760
7761         stblk = HOSTCC_STATBLCK_RING1;
7762
7763         for (i = 1, tnapi++; i < tp->irq_cnt; i++, tnapi++) {
7764                 u64 mapping = (u64)tnapi->status_mapping;
7765                 tw32(stblk + TG3_64BIT_REG_HIGH, mapping >> 32);
7766                 tw32(stblk + TG3_64BIT_REG_LOW, mapping & 0xffffffff);
7767
7768                 /* Clear status block in ram. */
7769                 memset(tnapi->hw_status, 0, TG3_HW_STATUS_SIZE);
7770
7771                 if (tnapi->tx_ring) {
7772                         tg3_set_bdinfo(tp, txrcb, tnapi->tx_desc_mapping,
7773                                        (TG3_TX_RING_SIZE <<
7774                                         BDINFO_FLAGS_MAXLEN_SHIFT),
7775                                        NIC_SRAM_TX_BUFFER_DESC);
7776                         txrcb += TG3_BDINFO_SIZE;
7777                 }
7778
7779                 tg3_set_bdinfo(tp, rxrcb, tnapi->rx_rcb_mapping,
7780                                ((tp->rx_ret_ring_mask + 1) <<
7781                                 BDINFO_FLAGS_MAXLEN_SHIFT), 0);
7782
7783                 stblk += 8;
7784                 rxrcb += TG3_BDINFO_SIZE;
7785         }
7786 }
7787
7788 /* tp->lock is held. */
7789 static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
7790 {
7791         u32 val, rdmac_mode;
7792         int i, err, limit;
7793         struct tg3_rx_prodring_set *tpr = &tp->napi[0].prodring;
7794
7795         tg3_disable_ints(tp);
7796
7797         tg3_stop_fw(tp);
7798
7799         tg3_write_sig_pre_reset(tp, RESET_KIND_INIT);
7800
7801         if (tp->tg3_flags & TG3_FLAG_INIT_COMPLETE)
7802                 tg3_abort_hw(tp, 1);
7803
7804         if (reset_phy)
7805                 tg3_phy_reset(tp);
7806
7807         err = tg3_chip_reset(tp);
7808         if (err)
7809                 return err;
7810
7811         tg3_write_sig_legacy(tp, RESET_KIND_INIT);
7812
7813         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX) {
7814                 val = tr32(TG3_CPMU_CTRL);
7815                 val &= ~(CPMU_CTRL_LINK_AWARE_MODE | CPMU_CTRL_LINK_IDLE_MODE);
7816                 tw32(TG3_CPMU_CTRL, val);
7817
7818                 val = tr32(TG3_CPMU_LSPD_10MB_CLK);
7819                 val &= ~CPMU_LSPD_10MB_MACCLK_MASK;
7820                 val |= CPMU_LSPD_10MB_MACCLK_6_25;
7821                 tw32(TG3_CPMU_LSPD_10MB_CLK, val);
7822
7823                 val = tr32(TG3_CPMU_LNK_AWARE_PWRMD);
7824                 val &= ~CPMU_LNK_AWARE_MACCLK_MASK;
7825                 val |= CPMU_LNK_AWARE_MACCLK_6_25;
7826                 tw32(TG3_CPMU_LNK_AWARE_PWRMD, val);
7827
7828                 val = tr32(TG3_CPMU_HST_ACC);
7829                 val &= ~CPMU_HST_ACC_MACCLK_MASK;
7830                 val |= CPMU_HST_ACC_MACCLK_6_25;
7831                 tw32(TG3_CPMU_HST_ACC, val);
7832         }
7833
7834         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780) {
7835                 val = tr32(PCIE_PWR_MGMT_THRESH) & ~PCIE_PWR_MGMT_L1_THRESH_MSK;
7836                 val |= PCIE_PWR_MGMT_EXT_ASPM_TMR_EN |
7837                        PCIE_PWR_MGMT_L1_THRESH_4MS;
7838                 tw32(PCIE_PWR_MGMT_THRESH, val);
7839
7840                 val = tr32(TG3_PCIE_EIDLE_DELAY) & ~TG3_PCIE_EIDLE_DELAY_MASK;
7841                 tw32(TG3_PCIE_EIDLE_DELAY, val | TG3_PCIE_EIDLE_DELAY_13_CLKS);
7842
7843                 tw32(TG3_CORR_ERR_STAT, TG3_CORR_ERR_STAT_CLEAR);
7844
7845                 val = tr32(TG3_PCIE_LNKCTL) & ~TG3_PCIE_LNKCTL_L1_PLL_PD_EN;
7846                 tw32(TG3_PCIE_LNKCTL, val | TG3_PCIE_LNKCTL_L1_PLL_PD_DIS);
7847         }
7848
7849         if (tp->tg3_flags3 & TG3_FLG3_L1PLLPD_EN) {
7850                 u32 grc_mode = tr32(GRC_MODE);
7851
7852                 /* Access the lower 1K of PL PCIE block registers. */
7853                 val = grc_mode & ~GRC_MODE_PCIE_PORT_MASK;
7854                 tw32(GRC_MODE, val | GRC_MODE_PCIE_PL_SEL);
7855
7856                 val = tr32(TG3_PCIE_TLDLPL_PORT + TG3_PCIE_PL_LO_PHYCTL1);
7857                 tw32(TG3_PCIE_TLDLPL_PORT + TG3_PCIE_PL_LO_PHYCTL1,
7858                      val | TG3_PCIE_PL_LO_PHYCTL1_L1PLLPD_EN);
7859
7860                 tw32(GRC_MODE, grc_mode);
7861         }
7862
7863         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765) {
7864                 if (tp->pci_chip_rev_id == CHIPREV_ID_57765_A0) {
7865                         u32 grc_mode = tr32(GRC_MODE);
7866
7867                         /* Access the lower 1K of PL PCIE block registers. */
7868                         val = grc_mode & ~GRC_MODE_PCIE_PORT_MASK;
7869                         tw32(GRC_MODE, val | GRC_MODE_PCIE_PL_SEL);
7870
7871                         val = tr32(TG3_PCIE_TLDLPL_PORT +
7872                                    TG3_PCIE_PL_LO_PHYCTL5);
7873                         tw32(TG3_PCIE_TLDLPL_PORT + TG3_PCIE_PL_LO_PHYCTL5,
7874                              val | TG3_PCIE_PL_LO_PHYCTL5_DIS_L2CLKREQ);
7875
7876                         tw32(GRC_MODE, grc_mode);
7877                 }
7878
7879                 val = tr32(TG3_CPMU_LSPD_10MB_CLK);
7880                 val &= ~CPMU_LSPD_10MB_MACCLK_MASK;
7881                 val |= CPMU_LSPD_10MB_MACCLK_6_25;
7882                 tw32(TG3_CPMU_LSPD_10MB_CLK, val);
7883         }
7884
7885         /* Enable MAC control of LPI */
7886         if (tp->phy_flags & TG3_PHYFLG_EEE_CAP) {
7887                 tw32_f(TG3_CPMU_EEE_LNKIDL_CTRL,
7888                        TG3_CPMU_EEE_LNKIDL_PCIE_NL0 |
7889                        TG3_CPMU_EEE_LNKIDL_UART_IDL);
7890
7891                 tw32_f(TG3_CPMU_EEE_CTRL,
7892                        TG3_CPMU_EEE_CTRL_EXIT_20_1_US);
7893
7894                 tw32_f(TG3_CPMU_EEE_MODE,
7895                        TG3_CPMU_EEEMD_ERLY_L1_XIT_DET |
7896                        TG3_CPMU_EEEMD_LPI_IN_TX |
7897                        TG3_CPMU_EEEMD_LPI_IN_RX |
7898                        TG3_CPMU_EEEMD_EEE_ENABLE);
7899         }
7900
7901         /* This works around an issue with Athlon chipsets on
7902          * B3 tigon3 silicon.  This bit has no effect on any
7903          * other revision.  But do not set this on PCI Express
7904          * chips and don't even touch the clocks if the CPMU is present.
7905          */
7906         if (!(tp->tg3_flags & TG3_FLAG_CPMU_PRESENT)) {
7907                 if (!(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS))
7908                         tp->pci_clock_ctrl |= CLOCK_CTRL_DELAY_PCI_GRANT;
7909                 tw32_f(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl);
7910         }
7911
7912         if (tp->pci_chip_rev_id == CHIPREV_ID_5704_A0 &&
7913             (tp->tg3_flags & TG3_FLAG_PCIX_MODE)) {
7914                 val = tr32(TG3PCI_PCISTATE);
7915                 val |= PCISTATE_RETRY_SAME_DMA;
7916                 tw32(TG3PCI_PCISTATE, val);
7917         }
7918
7919         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
7920                 /* Allow reads and writes to the
7921                  * APE register and memory space.
7922                  */
7923                 val = tr32(TG3PCI_PCISTATE);
7924                 val |= PCISTATE_ALLOW_APE_CTLSPC_WR |
7925                        PCISTATE_ALLOW_APE_SHMEM_WR |
7926                        PCISTATE_ALLOW_APE_PSPACE_WR;
7927                 tw32(TG3PCI_PCISTATE, val);
7928         }
7929
7930         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5704_BX) {
7931                 /* Enable some hw fixes.  */
7932                 val = tr32(TG3PCI_MSI_DATA);
7933                 val |= (1 << 26) | (1 << 28) | (1 << 29);
7934                 tw32(TG3PCI_MSI_DATA, val);
7935         }
7936
7937         /* Descriptor ring init may make accesses to the
7938          * NIC SRAM area to setup the TX descriptors, so we
7939          * can only do this after the hardware has been
7940          * successfully reset.
7941          */
7942         err = tg3_init_rings(tp);
7943         if (err)
7944                 return err;
7945
7946         if (tp->tg3_flags3 & TG3_FLG3_5717_PLUS) {
7947                 val = tr32(TG3PCI_DMA_RW_CTRL) &
7948                       ~DMA_RWCTRL_DIS_CACHE_ALIGNMENT;
7949                 if (tp->pci_chip_rev_id == CHIPREV_ID_57765_A0)
7950                         val &= ~DMA_RWCTRL_CRDRDR_RDMA_MRRS_MSK;
7951                 tw32(TG3PCI_DMA_RW_CTRL, val | tp->dma_rwctrl);
7952         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5784 &&
7953                    GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5761) {
7954                 /* This value is determined during the probe time DMA
7955                  * engine test, tg3_test_dma.
7956                  */
7957                 tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
7958         }
7959
7960         tp->grc_mode &= ~(GRC_MODE_HOST_SENDBDS |
7961                           GRC_MODE_4X_NIC_SEND_RINGS |
7962                           GRC_MODE_NO_TX_PHDR_CSUM |
7963                           GRC_MODE_NO_RX_PHDR_CSUM);
7964         tp->grc_mode |= GRC_MODE_HOST_SENDBDS;
7965
7966         /* Pseudo-header checksum is done by hardware logic and not
7967          * the offload processers, so make the chip do the pseudo-
7968          * header checksums on receive.  For transmit it is more
7969          * convenient to do the pseudo-header checksum in software
7970          * as Linux does that on transmit for us in all cases.
7971          */
7972         tp->grc_mode |= GRC_MODE_NO_TX_PHDR_CSUM;
7973
7974         tw32(GRC_MODE,
7975              tp->grc_mode |
7976              (GRC_MODE_IRQ_ON_MAC_ATTN | GRC_MODE_HOST_STACKUP));
7977
7978         /* Setup the timer prescalar register.  Clock is always 66Mhz. */
7979         val = tr32(GRC_MISC_CFG);
7980         val &= ~0xff;
7981         val |= (65 << GRC_MISC_CFG_PRESCALAR_SHIFT);
7982         tw32(GRC_MISC_CFG, val);
7983
7984         /* Initialize MBUF/DESC pool. */
7985         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) {
7986                 /* Do nothing.  */
7987         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5705) {
7988                 tw32(BUFMGR_MB_POOL_ADDR, NIC_SRAM_MBUF_POOL_BASE);
7989                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704)
7990                         tw32(BUFMGR_MB_POOL_SIZE, NIC_SRAM_MBUF_POOL_SIZE64);
7991                 else
7992                         tw32(BUFMGR_MB_POOL_SIZE, NIC_SRAM_MBUF_POOL_SIZE96);
7993                 tw32(BUFMGR_DMA_DESC_POOL_ADDR, NIC_SRAM_DMA_DESC_POOL_BASE);
7994                 tw32(BUFMGR_DMA_DESC_POOL_SIZE, NIC_SRAM_DMA_DESC_POOL_SIZE);
7995         } else if (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) {
7996                 int fw_len;
7997
7998                 fw_len = tp->fw_len;
7999                 fw_len = (fw_len + (0x80 - 1)) & ~(0x80 - 1);
8000                 tw32(BUFMGR_MB_POOL_ADDR,
8001                      NIC_SRAM_MBUF_POOL_BASE5705 + fw_len);
8002                 tw32(BUFMGR_MB_POOL_SIZE,
8003                      NIC_SRAM_MBUF_POOL_SIZE5705 - fw_len - 0xa00);
8004         }
8005
8006         if (tp->dev->mtu <= ETH_DATA_LEN) {
8007                 tw32(BUFMGR_MB_RDMA_LOW_WATER,
8008                      tp->bufmgr_config.mbuf_read_dma_low_water);
8009                 tw32(BUFMGR_MB_MACRX_LOW_WATER,
8010                      tp->bufmgr_config.mbuf_mac_rx_low_water);
8011                 tw32(BUFMGR_MB_HIGH_WATER,
8012                      tp->bufmgr_config.mbuf_high_water);
8013         } else {
8014                 tw32(BUFMGR_MB_RDMA_LOW_WATER,
8015                      tp->bufmgr_config.mbuf_read_dma_low_water_jumbo);
8016                 tw32(BUFMGR_MB_MACRX_LOW_WATER,
8017                      tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo);
8018                 tw32(BUFMGR_MB_HIGH_WATER,
8019                      tp->bufmgr_config.mbuf_high_water_jumbo);
8020         }
8021         tw32(BUFMGR_DMA_LOW_WATER,
8022              tp->bufmgr_config.dma_low_water);
8023         tw32(BUFMGR_DMA_HIGH_WATER,
8024              tp->bufmgr_config.dma_high_water);
8025
8026         val = BUFMGR_MODE_ENABLE | BUFMGR_MODE_ATTN_ENABLE;
8027         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719)
8028                 val |= BUFMGR_MODE_NO_TX_UNDERRUN;
8029         tw32(BUFMGR_MODE, val);
8030         for (i = 0; i < 2000; i++) {
8031                 if (tr32(BUFMGR_MODE) & BUFMGR_MODE_ENABLE)
8032                         break;
8033                 udelay(10);
8034         }
8035         if (i >= 2000) {
8036                 netdev_err(tp->dev, "%s cannot enable BUFMGR\n", __func__);
8037                 return -ENODEV;
8038         }
8039
8040         /* Setup replenish threshold. */
8041         val = tp->rx_pending / 8;
8042         if (val == 0)
8043                 val = 1;
8044         else if (val > tp->rx_std_max_post)
8045                 val = tp->rx_std_max_post;
8046         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
8047                 if (tp->pci_chip_rev_id == CHIPREV_ID_5906_A1)
8048                         tw32(ISO_PKT_TX, (tr32(ISO_PKT_TX) & ~0x3) | 0x2);
8049
8050                 if (val > (TG3_RX_INTERNAL_RING_SZ_5906 / 2))
8051                         val = TG3_RX_INTERNAL_RING_SZ_5906 / 2;
8052         }
8053
8054         tw32(RCVBDI_STD_THRESH, val);
8055
8056         /* Initialize TG3_BDINFO's at:
8057          *  RCVDBDI_STD_BD:     standard eth size rx ring
8058          *  RCVDBDI_JUMBO_BD:   jumbo frame rx ring
8059          *  RCVDBDI_MINI_BD:    small frame rx ring (??? does not work)
8060          *
8061          * like so:
8062          *  TG3_BDINFO_HOST_ADDR:       high/low parts of DMA address of ring
8063          *  TG3_BDINFO_MAXLEN_FLAGS:    (rx max buffer size << 16) |
8064          *                              ring attribute flags
8065          *  TG3_BDINFO_NIC_ADDR:        location of descriptors in nic SRAM
8066          *
8067          * Standard receive ring @ NIC_SRAM_RX_BUFFER_DESC, 512 entries.
8068          * Jumbo receive ring @ NIC_SRAM_RX_JUMBO_BUFFER_DESC, 256 entries.
8069          *
8070          * The size of each ring is fixed in the firmware, but the location is
8071          * configurable.
8072          */
8073         tw32(RCVDBDI_STD_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_HIGH,
8074              ((u64) tpr->rx_std_mapping >> 32));
8075         tw32(RCVDBDI_STD_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_LOW,
8076              ((u64) tpr->rx_std_mapping & 0xffffffff));
8077         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5717 &&
8078             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5719)
8079                 tw32(RCVDBDI_STD_BD + TG3_BDINFO_NIC_ADDR,
8080                      NIC_SRAM_RX_BUFFER_DESC);
8081
8082         /* Disable the mini ring */
8083         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
8084                 tw32(RCVDBDI_MINI_BD + TG3_BDINFO_MAXLEN_FLAGS,
8085                      BDINFO_FLAGS_DISABLED);
8086
8087         /* Program the jumbo buffer descriptor ring control
8088          * blocks on those devices that have them.
8089          */
8090         if ((tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) &&
8091             !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
8092                 /* Setup replenish threshold. */
8093                 tw32(RCVBDI_JUMBO_THRESH, tp->rx_jumbo_pending / 8);
8094
8095                 if (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE) {
8096                         tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_HIGH,
8097                              ((u64) tpr->rx_jmb_mapping >> 32));
8098                         tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_LOW,
8099                              ((u64) tpr->rx_jmb_mapping & 0xffffffff));
8100                         tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_MAXLEN_FLAGS,
8101                              (RX_JUMBO_MAX_SIZE << BDINFO_FLAGS_MAXLEN_SHIFT) |
8102                              BDINFO_FLAGS_USE_EXT_RECV);
8103                         if (!(tp->tg3_flags3 & TG3_FLG3_USE_JUMBO_BDFLAG) ||
8104                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
8105                                 tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_NIC_ADDR,
8106                                      NIC_SRAM_RX_JUMBO_BUFFER_DESC);
8107                 } else {
8108                         tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_MAXLEN_FLAGS,
8109                              BDINFO_FLAGS_DISABLED);
8110                 }
8111
8112                 if (tp->tg3_flags3 & TG3_FLG3_5717_PLUS) {
8113                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
8114                                 val = RX_STD_MAX_SIZE_5705;
8115                         else
8116                                 val = RX_STD_MAX_SIZE_5717;
8117                         val <<= BDINFO_FLAGS_MAXLEN_SHIFT;
8118                         val |= (TG3_RX_STD_DMA_SZ << 2);
8119                 } else
8120                         val = TG3_RX_STD_DMA_SZ << BDINFO_FLAGS_MAXLEN_SHIFT;
8121         } else
8122                 val = RX_STD_MAX_SIZE_5705 << BDINFO_FLAGS_MAXLEN_SHIFT;
8123
8124         tw32(RCVDBDI_STD_BD + TG3_BDINFO_MAXLEN_FLAGS, val);
8125
8126         tpr->rx_std_prod_idx = tp->rx_pending;
8127         tw32_rx_mbox(TG3_RX_STD_PROD_IDX_REG, tpr->rx_std_prod_idx);
8128
8129         tpr->rx_jmb_prod_idx = (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE) ?
8130                           tp->rx_jumbo_pending : 0;
8131         tw32_rx_mbox(TG3_RX_JMB_PROD_IDX_REG, tpr->rx_jmb_prod_idx);
8132
8133         if (tp->tg3_flags3 & TG3_FLG3_5717_PLUS) {
8134                 tw32(STD_REPLENISH_LWM, 32);
8135                 tw32(JMB_REPLENISH_LWM, 16);
8136         }
8137
8138         tg3_rings_reset(tp);
8139
8140         /* Initialize MAC address and backoff seed. */
8141         __tg3_set_mac_addr(tp, 0);
8142
8143         /* MTU + ethernet header + FCS + optional VLAN tag */
8144         tw32(MAC_RX_MTU_SIZE,
8145              tp->dev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN);
8146
8147         /* The slot time is changed by tg3_setup_phy if we
8148          * run at gigabit with half duplex.
8149          */
8150         tw32(MAC_TX_LENGTHS,
8151              (2 << TX_LENGTHS_IPG_CRS_SHIFT) |
8152              (6 << TX_LENGTHS_IPG_SHIFT) |
8153              (32 << TX_LENGTHS_SLOT_TIME_SHIFT));
8154
8155         /* Receive rules. */
8156         tw32(MAC_RCV_RULE_CFG, RCV_RULE_CFG_DEFAULT_CLASS);
8157         tw32(RCVLPC_CONFIG, 0x0181);
8158
8159         /* Calculate RDMAC_MODE setting early, we need it to determine
8160          * the RCVLPC_STATE_ENABLE mask.
8161          */
8162         rdmac_mode = (RDMAC_MODE_ENABLE | RDMAC_MODE_TGTABORT_ENAB |
8163                       RDMAC_MODE_MSTABORT_ENAB | RDMAC_MODE_PARITYERR_ENAB |
8164                       RDMAC_MODE_ADDROFLOW_ENAB | RDMAC_MODE_FIFOOFLOW_ENAB |
8165                       RDMAC_MODE_FIFOURUN_ENAB | RDMAC_MODE_FIFOOREAD_ENAB |
8166                       RDMAC_MODE_LNGREAD_ENAB);
8167
8168         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
8169             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719)
8170                 rdmac_mode |= RDMAC_MODE_MULT_DMA_RD_DIS;
8171
8172         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
8173             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
8174             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
8175                 rdmac_mode |= RDMAC_MODE_BD_SBD_CRPT_ENAB |
8176                               RDMAC_MODE_MBUF_RBD_CRPT_ENAB |
8177                               RDMAC_MODE_MBUF_SBD_CRPT_ENAB;
8178
8179         /* If statement applies to 5705 and 5750 PCI devices only */
8180         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 &&
8181              tp->pci_chip_rev_id != CHIPREV_ID_5705_A0) ||
8182             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750)) {
8183                 if (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE &&
8184                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
8185                         rdmac_mode |= RDMAC_MODE_FIFO_SIZE_128;
8186                 } else if (!(tr32(TG3PCI_PCISTATE) & PCISTATE_BUS_SPEED_HIGH) &&
8187                            !(tp->tg3_flags2 & TG3_FLG2_IS_5788)) {
8188                         rdmac_mode |= RDMAC_MODE_FIFO_LONG_BURST;
8189                 }
8190         }
8191
8192         if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS)
8193                 rdmac_mode |= RDMAC_MODE_FIFO_LONG_BURST;
8194
8195         if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
8196                 rdmac_mode |= RDMAC_MODE_IPV4_LSO_EN;
8197
8198         if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_3) ||
8199             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
8200             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
8201                 rdmac_mode |= RDMAC_MODE_IPV6_LSO_EN;
8202
8203         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
8204             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
8205             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
8206             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 ||
8207             (tp->tg3_flags3 & TG3_FLG3_5717_PLUS)) {
8208                 val = tr32(TG3_RDMA_RSRVCTRL_REG);
8209                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719) {
8210                         val &= ~TG3_RDMA_RSRVCTRL_TXMRGN_MASK;
8211                         val |= TG3_RDMA_RSRVCTRL_TXMRGN_320B;
8212                 }
8213                 tw32(TG3_RDMA_RSRVCTRL_REG,
8214                      val | TG3_RDMA_RSRVCTRL_FIFO_OFLW_FIX);
8215         }
8216
8217         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719) {
8218                 val = tr32(TG3_LSO_RD_DMA_CRPTEN_CTRL);
8219                 tw32(TG3_LSO_RD_DMA_CRPTEN_CTRL, val |
8220                      TG3_LSO_RD_DMA_CRPTEN_CTRL_BLEN_BD_4K |
8221                      TG3_LSO_RD_DMA_CRPTEN_CTRL_BLEN_LSO_4K);
8222         }
8223
8224         /* Receive/send statistics. */
8225         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) {
8226                 val = tr32(RCVLPC_STATS_ENABLE);
8227                 val &= ~RCVLPC_STATSENAB_DACK_FIX;
8228                 tw32(RCVLPC_STATS_ENABLE, val);
8229         } else if ((rdmac_mode & RDMAC_MODE_FIFO_SIZE_128) &&
8230                    (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE)) {
8231                 val = tr32(RCVLPC_STATS_ENABLE);
8232                 val &= ~RCVLPC_STATSENAB_LNGBRST_RFIX;
8233                 tw32(RCVLPC_STATS_ENABLE, val);
8234         } else {
8235                 tw32(RCVLPC_STATS_ENABLE, 0xffffff);
8236         }
8237         tw32(RCVLPC_STATSCTRL, RCVLPC_STATSCTRL_ENABLE);
8238         tw32(SNDDATAI_STATSENAB, 0xffffff);
8239         tw32(SNDDATAI_STATSCTRL,
8240              (SNDDATAI_SCTRL_ENABLE |
8241               SNDDATAI_SCTRL_FASTUPD));
8242
8243         /* Setup host coalescing engine. */
8244         tw32(HOSTCC_MODE, 0);
8245         for (i = 0; i < 2000; i++) {
8246                 if (!(tr32(HOSTCC_MODE) & HOSTCC_MODE_ENABLE))
8247                         break;
8248                 udelay(10);
8249         }
8250
8251         __tg3_set_coalesce(tp, &tp->coal);
8252
8253         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
8254                 /* Status/statistics block address.  See tg3_timer,
8255                  * the tg3_periodic_fetch_stats call there, and
8256                  * tg3_get_stats to see how this works for 5705/5750 chips.
8257                  */
8258                 tw32(HOSTCC_STATS_BLK_HOST_ADDR + TG3_64BIT_REG_HIGH,
8259                      ((u64) tp->stats_mapping >> 32));
8260                 tw32(HOSTCC_STATS_BLK_HOST_ADDR + TG3_64BIT_REG_LOW,
8261                      ((u64) tp->stats_mapping & 0xffffffff));
8262                 tw32(HOSTCC_STATS_BLK_NIC_ADDR, NIC_SRAM_STATS_BLK);
8263
8264                 tw32(HOSTCC_STATUS_BLK_NIC_ADDR, NIC_SRAM_STATUS_BLK);
8265
8266                 /* Clear statistics and status block memory areas */
8267                 for (i = NIC_SRAM_STATS_BLK;
8268                      i < NIC_SRAM_STATUS_BLK + TG3_HW_STATUS_SIZE;
8269                      i += sizeof(u32)) {
8270                         tg3_write_mem(tp, i, 0);
8271                         udelay(40);
8272                 }
8273         }
8274
8275         tw32(HOSTCC_MODE, HOSTCC_MODE_ENABLE | tp->coalesce_mode);
8276
8277         tw32(RCVCC_MODE, RCVCC_MODE_ENABLE | RCVCC_MODE_ATTN_ENABLE);
8278         tw32(RCVLPC_MODE, RCVLPC_MODE_ENABLE);
8279         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
8280                 tw32(RCVLSC_MODE, RCVLSC_MODE_ENABLE | RCVLSC_MODE_ATTN_ENABLE);
8281
8282         if (tp->phy_flags & TG3_PHYFLG_MII_SERDES) {
8283                 tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
8284                 /* reset to prevent losing 1st rx packet intermittently */
8285                 tw32_f(MAC_RX_MODE, RX_MODE_RESET);
8286                 udelay(10);
8287         }
8288
8289         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
8290                 tp->mac_mode = MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN;
8291         else
8292                 tp->mac_mode = 0;
8293         tp->mac_mode |= MAC_MODE_TXSTAT_ENABLE | MAC_MODE_RXSTAT_ENABLE |
8294                 MAC_MODE_TDE_ENABLE | MAC_MODE_RDE_ENABLE | MAC_MODE_FHDE_ENABLE;
8295         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
8296             !(tp->phy_flags & TG3_PHYFLG_PHY_SERDES) &&
8297             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700)
8298                 tp->mac_mode |= MAC_MODE_LINK_POLARITY;
8299         tw32_f(MAC_MODE, tp->mac_mode | MAC_MODE_RXSTAT_CLEAR | MAC_MODE_TXSTAT_CLEAR);
8300         udelay(40);
8301
8302         /* tp->grc_local_ctrl is partially set up during tg3_get_invariants().
8303          * If TG3_FLG2_IS_NIC is zero, we should read the
8304          * register to preserve the GPIO settings for LOMs. The GPIOs,
8305          * whether used as inputs or outputs, are set by boot code after
8306          * reset.
8307          */
8308         if (!(tp->tg3_flags2 & TG3_FLG2_IS_NIC)) {
8309                 u32 gpio_mask;
8310
8311                 gpio_mask = GRC_LCLCTRL_GPIO_OE0 | GRC_LCLCTRL_GPIO_OE1 |
8312                             GRC_LCLCTRL_GPIO_OE2 | GRC_LCLCTRL_GPIO_OUTPUT0 |
8313                             GRC_LCLCTRL_GPIO_OUTPUT1 | GRC_LCLCTRL_GPIO_OUTPUT2;
8314
8315                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752)
8316                         gpio_mask |= GRC_LCLCTRL_GPIO_OE3 |
8317                                      GRC_LCLCTRL_GPIO_OUTPUT3;
8318
8319                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755)
8320                         gpio_mask |= GRC_LCLCTRL_GPIO_UART_SEL;
8321
8322                 tp->grc_local_ctrl &= ~gpio_mask;
8323                 tp->grc_local_ctrl |= tr32(GRC_LOCAL_CTRL) & gpio_mask;
8324
8325                 /* GPIO1 must be driven high for eeprom write protect */
8326                 if (tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT)
8327                         tp->grc_local_ctrl |= (GRC_LCLCTRL_GPIO_OE1 |
8328                                                GRC_LCLCTRL_GPIO_OUTPUT1);
8329         }
8330         tw32_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl);
8331         udelay(100);
8332
8333         if (tp->tg3_flags2 & TG3_FLG2_USING_MSIX) {
8334                 val = tr32(MSGINT_MODE);
8335                 val |= MSGINT_MODE_MULTIVEC_EN | MSGINT_MODE_ENABLE;
8336                 tw32(MSGINT_MODE, val);
8337         }
8338
8339         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
8340                 tw32_f(DMAC_MODE, DMAC_MODE_ENABLE);
8341                 udelay(40);
8342         }
8343
8344         val = (WDMAC_MODE_ENABLE | WDMAC_MODE_TGTABORT_ENAB |
8345                WDMAC_MODE_MSTABORT_ENAB | WDMAC_MODE_PARITYERR_ENAB |
8346                WDMAC_MODE_ADDROFLOW_ENAB | WDMAC_MODE_FIFOOFLOW_ENAB |
8347                WDMAC_MODE_FIFOURUN_ENAB | WDMAC_MODE_FIFOOREAD_ENAB |
8348                WDMAC_MODE_LNGREAD_ENAB);
8349
8350         /* If statement applies to 5705 and 5750 PCI devices only */
8351         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 &&
8352              tp->pci_chip_rev_id != CHIPREV_ID_5705_A0) ||
8353             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750) {
8354                 if ((tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) &&
8355                     (tp->pci_chip_rev_id == CHIPREV_ID_5705_A1 ||
8356                      tp->pci_chip_rev_id == CHIPREV_ID_5705_A2)) {
8357                         /* nothing */
8358                 } else if (!(tr32(TG3PCI_PCISTATE) & PCISTATE_BUS_SPEED_HIGH) &&
8359                            !(tp->tg3_flags2 & TG3_FLG2_IS_5788) &&
8360                            !(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS)) {
8361                         val |= WDMAC_MODE_RX_ACCEL;
8362                 }
8363         }
8364
8365         /* Enable host coalescing bug fix */
8366         if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
8367                 val |= WDMAC_MODE_STATUS_TAG_FIX;
8368
8369         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
8370                 val |= WDMAC_MODE_BURST_ALL_DATA;
8371
8372         tw32_f(WDMAC_MODE, val);
8373         udelay(40);
8374
8375         if (tp->tg3_flags & TG3_FLAG_PCIX_MODE) {
8376                 u16 pcix_cmd;
8377
8378                 pci_read_config_word(tp->pdev, tp->pcix_cap + PCI_X_CMD,
8379                                      &pcix_cmd);
8380                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703) {
8381                         pcix_cmd &= ~PCI_X_CMD_MAX_READ;
8382                         pcix_cmd |= PCI_X_CMD_READ_2K;
8383                 } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
8384                         pcix_cmd &= ~(PCI_X_CMD_MAX_SPLIT | PCI_X_CMD_MAX_READ);
8385                         pcix_cmd |= PCI_X_CMD_READ_2K;
8386                 }
8387                 pci_write_config_word(tp->pdev, tp->pcix_cap + PCI_X_CMD,
8388                                       pcix_cmd);
8389         }
8390
8391         tw32_f(RDMAC_MODE, rdmac_mode);
8392         udelay(40);
8393
8394         tw32(RCVDCC_MODE, RCVDCC_MODE_ENABLE | RCVDCC_MODE_ATTN_ENABLE);
8395         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
8396                 tw32(MBFREE_MODE, MBFREE_MODE_ENABLE);
8397
8398         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761)
8399                 tw32(SNDDATAC_MODE,
8400                      SNDDATAC_MODE_ENABLE | SNDDATAC_MODE_CDELAY);
8401         else
8402                 tw32(SNDDATAC_MODE, SNDDATAC_MODE_ENABLE);
8403
8404         tw32(SNDBDC_MODE, SNDBDC_MODE_ENABLE | SNDBDC_MODE_ATTN_ENABLE);
8405         tw32(RCVBDI_MODE, RCVBDI_MODE_ENABLE | RCVBDI_MODE_RCB_ATTN_ENAB);
8406         val = RCVDBDI_MODE_ENABLE | RCVDBDI_MODE_INV_RING_SZ;
8407         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
8408             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719)
8409                 val |= RCVDBDI_MODE_LRG_RING_SZ;
8410         tw32(RCVDBDI_MODE, val);
8411         tw32(SNDDATAI_MODE, SNDDATAI_MODE_ENABLE);
8412         if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
8413                 tw32(SNDDATAI_MODE, SNDDATAI_MODE_ENABLE | 0x8);
8414         val = SNDBDI_MODE_ENABLE | SNDBDI_MODE_ATTN_ENABLE;
8415         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
8416                 val |= SNDBDI_MODE_MULTI_TXQ_EN;
8417         tw32(SNDBDI_MODE, val);
8418         tw32(SNDBDS_MODE, SNDBDS_MODE_ENABLE | SNDBDS_MODE_ATTN_ENABLE);
8419
8420         if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0) {
8421                 err = tg3_load_5701_a0_firmware_fix(tp);
8422                 if (err)
8423                         return err;
8424         }
8425
8426         if (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) {
8427                 err = tg3_load_tso_firmware(tp);
8428                 if (err)
8429                         return err;
8430         }
8431
8432         tp->tx_mode = TX_MODE_ENABLE;
8433         if ((tp->tg3_flags3 & TG3_FLG3_5755_PLUS) ||
8434             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
8435                 tp->tx_mode |= TX_MODE_MBUF_LOCKUP_FIX;
8436         tw32_f(MAC_TX_MODE, tp->tx_mode);
8437         udelay(100);
8438
8439         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS) {
8440                 u32 reg = MAC_RSS_INDIR_TBL_0;
8441                 u8 *ent = (u8 *)&val;
8442
8443                 /* Setup the indirection table */
8444                 for (i = 0; i < TG3_RSS_INDIR_TBL_SIZE; i++) {
8445                         int idx = i % sizeof(val);
8446
8447                         ent[idx] = i % (tp->irq_cnt - 1);
8448                         if (idx == sizeof(val) - 1) {
8449                                 tw32(reg, val);
8450                                 reg += 4;
8451                         }
8452                 }
8453
8454                 /* Setup the "secret" hash key. */
8455                 tw32(MAC_RSS_HASH_KEY_0, 0x5f865437);
8456                 tw32(MAC_RSS_HASH_KEY_1, 0xe4ac62cc);
8457                 tw32(MAC_RSS_HASH_KEY_2, 0x50103a45);
8458                 tw32(MAC_RSS_HASH_KEY_3, 0x36621985);
8459                 tw32(MAC_RSS_HASH_KEY_4, 0xbf14c0e8);
8460                 tw32(MAC_RSS_HASH_KEY_5, 0x1bc27a1e);
8461                 tw32(MAC_RSS_HASH_KEY_6, 0x84f4b556);
8462                 tw32(MAC_RSS_HASH_KEY_7, 0x094ea6fe);
8463                 tw32(MAC_RSS_HASH_KEY_8, 0x7dda01e7);
8464                 tw32(MAC_RSS_HASH_KEY_9, 0xc04d7481);
8465         }
8466
8467         tp->rx_mode = RX_MODE_ENABLE;
8468         if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
8469                 tp->rx_mode |= RX_MODE_IPV6_CSUM_ENABLE;
8470
8471         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS)
8472                 tp->rx_mode |= RX_MODE_RSS_ENABLE |
8473                                RX_MODE_RSS_ITBL_HASH_BITS_7 |
8474                                RX_MODE_RSS_IPV6_HASH_EN |
8475                                RX_MODE_RSS_TCP_IPV6_HASH_EN |
8476                                RX_MODE_RSS_IPV4_HASH_EN |
8477                                RX_MODE_RSS_TCP_IPV4_HASH_EN;
8478
8479         tw32_f(MAC_RX_MODE, tp->rx_mode);
8480         udelay(10);
8481
8482         tw32(MAC_LED_CTRL, tp->led_ctrl);
8483
8484         tw32(MAC_MI_STAT, MAC_MI_STAT_LNKSTAT_ATTN_ENAB);
8485         if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES) {
8486                 tw32_f(MAC_RX_MODE, RX_MODE_RESET);
8487                 udelay(10);
8488         }
8489         tw32_f(MAC_RX_MODE, tp->rx_mode);
8490         udelay(10);
8491
8492         if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES) {
8493                 if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) &&
8494                         !(tp->phy_flags & TG3_PHYFLG_SERDES_PREEMPHASIS)) {
8495                         /* Set drive transmission level to 1.2V  */
8496                         /* only if the signal pre-emphasis bit is not set  */
8497                         val = tr32(MAC_SERDES_CFG);
8498                         val &= 0xfffff000;
8499                         val |= 0x880;
8500                         tw32(MAC_SERDES_CFG, val);
8501                 }
8502                 if (tp->pci_chip_rev_id == CHIPREV_ID_5703_A1)
8503                         tw32(MAC_SERDES_CFG, 0x616000);
8504         }
8505
8506         /* Prevent chip from dropping frames when flow control
8507          * is enabled.
8508          */
8509         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
8510                 val = 1;
8511         else
8512                 val = 2;
8513         tw32_f(MAC_LOW_WMARK_MAX_RX_FRAME, val);
8514
8515         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 &&
8516             (tp->phy_flags & TG3_PHYFLG_PHY_SERDES)) {
8517                 /* Use hardware link auto-negotiation */
8518                 tp->tg3_flags2 |= TG3_FLG2_HW_AUTONEG;
8519         }
8520
8521         if ((tp->phy_flags & TG3_PHYFLG_MII_SERDES) &&
8522             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714)) {
8523                 u32 tmp;
8524
8525                 tmp = tr32(SERDES_RX_CTRL);
8526                 tw32(SERDES_RX_CTRL, tmp | SERDES_RX_SIG_DETECT);
8527                 tp->grc_local_ctrl &= ~GRC_LCLCTRL_USE_EXT_SIG_DETECT;
8528                 tp->grc_local_ctrl |= GRC_LCLCTRL_USE_SIG_DETECT;
8529                 tw32(GRC_LOCAL_CTRL, tp->grc_local_ctrl);
8530         }
8531
8532         if (!(tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB)) {
8533                 if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER) {
8534                         tp->phy_flags &= ~TG3_PHYFLG_IS_LOW_POWER;
8535                         tp->link_config.speed = tp->link_config.orig_speed;
8536                         tp->link_config.duplex = tp->link_config.orig_duplex;
8537                         tp->link_config.autoneg = tp->link_config.orig_autoneg;
8538                 }
8539
8540                 err = tg3_setup_phy(tp, 0);
8541                 if (err)
8542                         return err;
8543
8544                 if (!(tp->phy_flags & TG3_PHYFLG_PHY_SERDES) &&
8545                     !(tp->phy_flags & TG3_PHYFLG_IS_FET)) {
8546                         u32 tmp;
8547
8548                         /* Clear CRC stats. */
8549                         if (!tg3_readphy(tp, MII_TG3_TEST1, &tmp)) {
8550                                 tg3_writephy(tp, MII_TG3_TEST1,
8551                                              tmp | MII_TG3_TEST1_CRC_EN);
8552                                 tg3_readphy(tp, MII_TG3_RXR_COUNTERS, &tmp);
8553                         }
8554                 }
8555         }
8556
8557         __tg3_set_rx_mode(tp->dev);
8558
8559         /* Initialize receive rules. */
8560         tw32(MAC_RCV_RULE_0,  0xc2000000 & RCV_RULE_DISABLE_MASK);
8561         tw32(MAC_RCV_VALUE_0, 0xffffffff & RCV_RULE_DISABLE_MASK);
8562         tw32(MAC_RCV_RULE_1,  0x86000004 & RCV_RULE_DISABLE_MASK);
8563         tw32(MAC_RCV_VALUE_1, 0xffffffff & RCV_RULE_DISABLE_MASK);
8564
8565         if ((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
8566             !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
8567                 limit = 8;
8568         else
8569                 limit = 16;
8570         if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF)
8571                 limit -= 4;
8572         switch (limit) {
8573         case 16:
8574                 tw32(MAC_RCV_RULE_15,  0); tw32(MAC_RCV_VALUE_15,  0);
8575         case 15:
8576                 tw32(MAC_RCV_RULE_14,  0); tw32(MAC_RCV_VALUE_14,  0);
8577         case 14:
8578                 tw32(MAC_RCV_RULE_13,  0); tw32(MAC_RCV_VALUE_13,  0);
8579         case 13:
8580                 tw32(MAC_RCV_RULE_12,  0); tw32(MAC_RCV_VALUE_12,  0);
8581         case 12:
8582                 tw32(MAC_RCV_RULE_11,  0); tw32(MAC_RCV_VALUE_11,  0);
8583         case 11:
8584                 tw32(MAC_RCV_RULE_10,  0); tw32(MAC_RCV_VALUE_10,  0);
8585         case 10:
8586                 tw32(MAC_RCV_RULE_9,  0); tw32(MAC_RCV_VALUE_9,  0);
8587         case 9:
8588                 tw32(MAC_RCV_RULE_8,  0); tw32(MAC_RCV_VALUE_8,  0);
8589         case 8:
8590                 tw32(MAC_RCV_RULE_7,  0); tw32(MAC_RCV_VALUE_7,  0);
8591         case 7:
8592                 tw32(MAC_RCV_RULE_6,  0); tw32(MAC_RCV_VALUE_6,  0);
8593         case 6:
8594                 tw32(MAC_RCV_RULE_5,  0); tw32(MAC_RCV_VALUE_5,  0);
8595         case 5:
8596                 tw32(MAC_RCV_RULE_4,  0); tw32(MAC_RCV_VALUE_4,  0);
8597         case 4:
8598                 /* tw32(MAC_RCV_RULE_3,  0); tw32(MAC_RCV_VALUE_3,  0); */
8599         case 3:
8600                 /* tw32(MAC_RCV_RULE_2,  0); tw32(MAC_RCV_VALUE_2,  0); */
8601         case 2:
8602         case 1:
8603
8604         default:
8605                 break;
8606         }
8607
8608         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
8609                 /* Write our heartbeat update interval to APE. */
8610                 tg3_ape_write32(tp, TG3_APE_HOST_HEARTBEAT_INT_MS,
8611                                 APE_HOST_HEARTBEAT_INT_DISABLE);
8612
8613         tg3_write_sig_post_reset(tp, RESET_KIND_INIT);
8614
8615         return 0;
8616 }
8617
8618 /* Called at device open time to get the chip ready for
8619  * packet processing.  Invoked with tp->lock held.
8620  */
8621 static int tg3_init_hw(struct tg3 *tp, int reset_phy)
8622 {
8623         tg3_switch_clocks(tp);
8624
8625         tw32(TG3PCI_MEM_WIN_BASE_ADDR, 0);
8626
8627         return tg3_reset_hw(tp, reset_phy);
8628 }
8629
8630 #define TG3_STAT_ADD32(PSTAT, REG) \
8631 do {    u32 __val = tr32(REG); \
8632         (PSTAT)->low += __val; \
8633         if ((PSTAT)->low < __val) \
8634                 (PSTAT)->high += 1; \
8635 } while (0)
8636
8637 static void tg3_periodic_fetch_stats(struct tg3 *tp)
8638 {
8639         struct tg3_hw_stats *sp = tp->hw_stats;
8640
8641         if (!netif_carrier_ok(tp->dev))
8642                 return;
8643
8644         TG3_STAT_ADD32(&sp->tx_octets, MAC_TX_STATS_OCTETS);
8645         TG3_STAT_ADD32(&sp->tx_collisions, MAC_TX_STATS_COLLISIONS);
8646         TG3_STAT_ADD32(&sp->tx_xon_sent, MAC_TX_STATS_XON_SENT);
8647         TG3_STAT_ADD32(&sp->tx_xoff_sent, MAC_TX_STATS_XOFF_SENT);
8648         TG3_STAT_ADD32(&sp->tx_mac_errors, MAC_TX_STATS_MAC_ERRORS);
8649         TG3_STAT_ADD32(&sp->tx_single_collisions, MAC_TX_STATS_SINGLE_COLLISIONS);
8650         TG3_STAT_ADD32(&sp->tx_mult_collisions, MAC_TX_STATS_MULT_COLLISIONS);
8651         TG3_STAT_ADD32(&sp->tx_deferred, MAC_TX_STATS_DEFERRED);
8652         TG3_STAT_ADD32(&sp->tx_excessive_collisions, MAC_TX_STATS_EXCESSIVE_COL);
8653         TG3_STAT_ADD32(&sp->tx_late_collisions, MAC_TX_STATS_LATE_COL);
8654         TG3_STAT_ADD32(&sp->tx_ucast_packets, MAC_TX_STATS_UCAST);
8655         TG3_STAT_ADD32(&sp->tx_mcast_packets, MAC_TX_STATS_MCAST);
8656         TG3_STAT_ADD32(&sp->tx_bcast_packets, MAC_TX_STATS_BCAST);
8657
8658         TG3_STAT_ADD32(&sp->rx_octets, MAC_RX_STATS_OCTETS);
8659         TG3_STAT_ADD32(&sp->rx_fragments, MAC_RX_STATS_FRAGMENTS);
8660         TG3_STAT_ADD32(&sp->rx_ucast_packets, MAC_RX_STATS_UCAST);
8661         TG3_STAT_ADD32(&sp->rx_mcast_packets, MAC_RX_STATS_MCAST);
8662         TG3_STAT_ADD32(&sp->rx_bcast_packets, MAC_RX_STATS_BCAST);
8663         TG3_STAT_ADD32(&sp->rx_fcs_errors, MAC_RX_STATS_FCS_ERRORS);
8664         TG3_STAT_ADD32(&sp->rx_align_errors, MAC_RX_STATS_ALIGN_ERRORS);
8665         TG3_STAT_ADD32(&sp->rx_xon_pause_rcvd, MAC_RX_STATS_XON_PAUSE_RECVD);
8666         TG3_STAT_ADD32(&sp->rx_xoff_pause_rcvd, MAC_RX_STATS_XOFF_PAUSE_RECVD);
8667         TG3_STAT_ADD32(&sp->rx_mac_ctrl_rcvd, MAC_RX_STATS_MAC_CTRL_RECVD);
8668         TG3_STAT_ADD32(&sp->rx_xoff_entered, MAC_RX_STATS_XOFF_ENTERED);
8669         TG3_STAT_ADD32(&sp->rx_frame_too_long_errors, MAC_RX_STATS_FRAME_TOO_LONG);
8670         TG3_STAT_ADD32(&sp->rx_jabbers, MAC_RX_STATS_JABBERS);
8671         TG3_STAT_ADD32(&sp->rx_undersize_packets, MAC_RX_STATS_UNDERSIZE);
8672
8673         TG3_STAT_ADD32(&sp->rxbds_empty, RCVLPC_NO_RCV_BD_CNT);
8674         TG3_STAT_ADD32(&sp->rx_discards, RCVLPC_IN_DISCARDS_CNT);
8675         TG3_STAT_ADD32(&sp->rx_errors, RCVLPC_IN_ERRORS_CNT);
8676 }
8677
8678 static void tg3_timer(unsigned long __opaque)
8679 {
8680         struct tg3 *tp = (struct tg3 *) __opaque;
8681
8682         if (tp->irq_sync)
8683                 goto restart_timer;
8684
8685         spin_lock(&tp->lock);
8686
8687         if (!(tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)) {
8688                 /* All of this garbage is because when using non-tagged
8689                  * IRQ status the mailbox/status_block protocol the chip
8690                  * uses with the cpu is race prone.
8691                  */
8692                 if (tp->napi[0].hw_status->status & SD_STATUS_UPDATED) {
8693                         tw32(GRC_LOCAL_CTRL,
8694                              tp->grc_local_ctrl | GRC_LCLCTRL_SETINT);
8695                 } else {
8696                         tw32(HOSTCC_MODE, tp->coalesce_mode |
8697                              HOSTCC_MODE_ENABLE | HOSTCC_MODE_NOW);
8698                 }
8699
8700                 if (!(tr32(WDMAC_MODE) & WDMAC_MODE_ENABLE)) {
8701                         tp->tg3_flags2 |= TG3_FLG2_RESTART_TIMER;
8702                         spin_unlock(&tp->lock);
8703                         schedule_work(&tp->reset_task);
8704                         return;
8705                 }
8706         }
8707
8708         /* This part only runs once per second. */
8709         if (!--tp->timer_counter) {
8710                 if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
8711                         tg3_periodic_fetch_stats(tp);
8712
8713                 if (tp->setlpicnt && !--tp->setlpicnt) {
8714                         u32 val = tr32(TG3_CPMU_EEE_MODE);
8715                         tw32(TG3_CPMU_EEE_MODE,
8716                              val | TG3_CPMU_EEEMD_LPI_ENABLE);
8717                 }
8718
8719                 if (tp->tg3_flags & TG3_FLAG_USE_LINKCHG_REG) {
8720                         u32 mac_stat;
8721                         int phy_event;
8722
8723                         mac_stat = tr32(MAC_STATUS);
8724
8725                         phy_event = 0;
8726                         if (tp->phy_flags & TG3_PHYFLG_USE_MI_INTERRUPT) {
8727                                 if (mac_stat & MAC_STATUS_MI_INTERRUPT)
8728                                         phy_event = 1;
8729                         } else if (mac_stat & MAC_STATUS_LNKSTATE_CHANGED)
8730                                 phy_event = 1;
8731
8732                         if (phy_event)
8733                                 tg3_setup_phy(tp, 0);
8734                 } else if (tp->tg3_flags & TG3_FLAG_POLL_SERDES) {
8735                         u32 mac_stat = tr32(MAC_STATUS);
8736                         int need_setup = 0;
8737
8738                         if (netif_carrier_ok(tp->dev) &&
8739                             (mac_stat & MAC_STATUS_LNKSTATE_CHANGED)) {
8740                                 need_setup = 1;
8741                         }
8742                         if (!netif_carrier_ok(tp->dev) &&
8743                             (mac_stat & (MAC_STATUS_PCS_SYNCED |
8744                                          MAC_STATUS_SIGNAL_DET))) {
8745                                 need_setup = 1;
8746                         }
8747                         if (need_setup) {
8748                                 if (!tp->serdes_counter) {
8749                                         tw32_f(MAC_MODE,
8750                                              (tp->mac_mode &
8751                                               ~MAC_MODE_PORT_MODE_MASK));
8752                                         udelay(40);
8753                                         tw32_f(MAC_MODE, tp->mac_mode);
8754                                         udelay(40);
8755                                 }
8756                                 tg3_setup_phy(tp, 0);
8757                         }
8758                 } else if ((tp->phy_flags & TG3_PHYFLG_MII_SERDES) &&
8759                            (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
8760                         tg3_serdes_parallel_detect(tp);
8761                 }
8762
8763                 tp->timer_counter = tp->timer_multiplier;
8764         }
8765
8766         /* Heartbeat is only sent once every 2 seconds.
8767          *
8768          * The heartbeat is to tell the ASF firmware that the host
8769          * driver is still alive.  In the event that the OS crashes,
8770          * ASF needs to reset the hardware to free up the FIFO space
8771          * that may be filled with rx packets destined for the host.
8772          * If the FIFO is full, ASF will no longer function properly.
8773          *
8774          * Unintended resets have been reported on real time kernels
8775          * where the timer doesn't run on time.  Netpoll will also have
8776          * same problem.
8777          *
8778          * The new FWCMD_NICDRV_ALIVE3 command tells the ASF firmware
8779          * to check the ring condition when the heartbeat is expiring
8780          * before doing the reset.  This will prevent most unintended
8781          * resets.
8782          */
8783         if (!--tp->asf_counter) {
8784                 if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) &&
8785                     !(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)) {
8786                         tg3_wait_for_event_ack(tp);
8787
8788                         tg3_write_mem(tp, NIC_SRAM_FW_CMD_MBOX,
8789                                       FWCMD_NICDRV_ALIVE3);
8790                         tg3_write_mem(tp, NIC_SRAM_FW_CMD_LEN_MBOX, 4);
8791                         tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX,
8792                                       TG3_FW_UPDATE_TIMEOUT_SEC);
8793
8794                         tg3_generate_fw_event(tp);
8795                 }
8796                 tp->asf_counter = tp->asf_multiplier;
8797         }
8798
8799         spin_unlock(&tp->lock);
8800
8801 restart_timer:
8802         tp->timer.expires = jiffies + tp->timer_offset;
8803         add_timer(&tp->timer);
8804 }
8805
8806 static int tg3_request_irq(struct tg3 *tp, int irq_num)
8807 {
8808         irq_handler_t fn;
8809         unsigned long flags;
8810         char *name;
8811         struct tg3_napi *tnapi = &tp->napi[irq_num];
8812
8813         if (tp->irq_cnt == 1)
8814                 name = tp->dev->name;
8815         else {
8816                 name = &tnapi->irq_lbl[0];
8817                 snprintf(name, IFNAMSIZ, "%s-%d", tp->dev->name, irq_num);
8818                 name[IFNAMSIZ-1] = 0;
8819         }
8820
8821         if (tp->tg3_flags2 & TG3_FLG2_USING_MSI_OR_MSIX) {
8822                 fn = tg3_msi;
8823                 if (tp->tg3_flags2 & TG3_FLG2_1SHOT_MSI)
8824                         fn = tg3_msi_1shot;
8825                 flags = IRQF_SAMPLE_RANDOM;
8826         } else {
8827                 fn = tg3_interrupt;
8828                 if (tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)
8829                         fn = tg3_interrupt_tagged;
8830                 flags = IRQF_SHARED | IRQF_SAMPLE_RANDOM;
8831         }
8832
8833         return request_irq(tnapi->irq_vec, fn, flags, name, tnapi);
8834 }
8835
8836 static int tg3_test_interrupt(struct tg3 *tp)
8837 {
8838         struct tg3_napi *tnapi = &tp->napi[0];
8839         struct net_device *dev = tp->dev;
8840         int err, i, intr_ok = 0;
8841         u32 val;
8842
8843         if (!netif_running(dev))
8844                 return -ENODEV;
8845
8846         tg3_disable_ints(tp);
8847
8848         free_irq(tnapi->irq_vec, tnapi);
8849
8850         /*
8851          * Turn off MSI one shot mode.  Otherwise this test has no
8852          * observable way to know whether the interrupt was delivered.
8853          */
8854         if ((tp->tg3_flags3 & TG3_FLG3_5717_PLUS) &&
8855             (tp->tg3_flags2 & TG3_FLG2_USING_MSI)) {
8856                 val = tr32(MSGINT_MODE) | MSGINT_MODE_ONE_SHOT_DISABLE;
8857                 tw32(MSGINT_MODE, val);
8858         }
8859
8860         err = request_irq(tnapi->irq_vec, tg3_test_isr,
8861                           IRQF_SHARED | IRQF_SAMPLE_RANDOM, dev->name, tnapi);
8862         if (err)
8863                 return err;
8864
8865         tnapi->hw_status->status &= ~SD_STATUS_UPDATED;
8866         tg3_enable_ints(tp);
8867
8868         tw32_f(HOSTCC_MODE, tp->coalesce_mode | HOSTCC_MODE_ENABLE |
8869                tnapi->coal_now);
8870
8871         for (i = 0; i < 5; i++) {
8872                 u32 int_mbox, misc_host_ctrl;
8873
8874                 int_mbox = tr32_mailbox(tnapi->int_mbox);
8875                 misc_host_ctrl = tr32(TG3PCI_MISC_HOST_CTRL);
8876
8877                 if ((int_mbox != 0) ||
8878                     (misc_host_ctrl & MISC_HOST_CTRL_MASK_PCI_INT)) {
8879                         intr_ok = 1;
8880                         break;
8881                 }
8882
8883                 msleep(10);
8884         }
8885
8886         tg3_disable_ints(tp);
8887
8888         free_irq(tnapi->irq_vec, tnapi);
8889
8890         err = tg3_request_irq(tp, 0);
8891
8892         if (err)
8893                 return err;
8894
8895         if (intr_ok) {
8896                 /* Reenable MSI one shot mode. */
8897                 if ((tp->tg3_flags3 & TG3_FLG3_5717_PLUS) &&
8898                     (tp->tg3_flags2 & TG3_FLG2_USING_MSI)) {
8899                         val = tr32(MSGINT_MODE) & ~MSGINT_MODE_ONE_SHOT_DISABLE;
8900                         tw32(MSGINT_MODE, val);
8901                 }
8902                 return 0;
8903         }
8904
8905         return -EIO;
8906 }
8907
8908 /* Returns 0 if MSI test succeeds or MSI test fails and INTx mode is
8909  * successfully restored
8910  */
8911 static int tg3_test_msi(struct tg3 *tp)
8912 {
8913         int err;
8914         u16 pci_cmd;
8915
8916         if (!(tp->tg3_flags2 & TG3_FLG2_USING_MSI))
8917                 return 0;
8918
8919         /* Turn off SERR reporting in case MSI terminates with Master
8920          * Abort.
8921          */
8922         pci_read_config_word(tp->pdev, PCI_COMMAND, &pci_cmd);
8923         pci_write_config_word(tp->pdev, PCI_COMMAND,
8924                               pci_cmd & ~PCI_COMMAND_SERR);
8925
8926         err = tg3_test_interrupt(tp);
8927
8928         pci_write_config_word(tp->pdev, PCI_COMMAND, pci_cmd);
8929
8930         if (!err)
8931                 return 0;
8932
8933         /* other failures */
8934         if (err != -EIO)
8935                 return err;
8936
8937         /* MSI test failed, go back to INTx mode */
8938         netdev_warn(tp->dev, "No interrupt was generated using MSI. Switching "
8939                     "to INTx mode. Please report this failure to the PCI "
8940                     "maintainer and include system chipset information\n");
8941
8942         free_irq(tp->napi[0].irq_vec, &tp->napi[0]);
8943
8944         pci_disable_msi(tp->pdev);
8945
8946         tp->tg3_flags2 &= ~TG3_FLG2_USING_MSI;
8947         tp->napi[0].irq_vec = tp->pdev->irq;
8948
8949         err = tg3_request_irq(tp, 0);
8950         if (err)
8951                 return err;
8952
8953         /* Need to reset the chip because the MSI cycle may have terminated
8954          * with Master Abort.
8955          */
8956         tg3_full_lock(tp, 1);
8957
8958         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
8959         err = tg3_init_hw(tp, 1);
8960
8961         tg3_full_unlock(tp);
8962
8963         if (err)
8964                 free_irq(tp->napi[0].irq_vec, &tp->napi[0]);
8965
8966         return err;
8967 }
8968
8969 static int tg3_request_firmware(struct tg3 *tp)
8970 {
8971         const __be32 *fw_data;
8972
8973         if (request_firmware(&tp->fw, tp->fw_needed, &tp->pdev->dev)) {
8974                 netdev_err(tp->dev, "Failed to load firmware \"%s\"\n",
8975                            tp->fw_needed);
8976                 return -ENOENT;
8977         }
8978
8979         fw_data = (void *)tp->fw->data;
8980
8981         /* Firmware blob starts with version numbers, followed by
8982          * start address and _full_ length including BSS sections
8983          * (which must be longer than the actual data, of course
8984          */
8985
8986         tp->fw_len = be32_to_cpu(fw_data[2]);   /* includes bss */
8987         if (tp->fw_len < (tp->fw->size - 12)) {
8988                 netdev_err(tp->dev, "bogus length %d in \"%s\"\n",
8989                            tp->fw_len, tp->fw_needed);
8990                 release_firmware(tp->fw);
8991                 tp->fw = NULL;
8992                 return -EINVAL;
8993         }
8994
8995         /* We no longer need firmware; we have it. */
8996         tp->fw_needed = NULL;
8997         return 0;
8998 }
8999
9000 static bool tg3_enable_msix(struct tg3 *tp)
9001 {
9002         int i, rc, cpus = num_online_cpus();
9003         struct msix_entry msix_ent[tp->irq_max];
9004
9005         if (cpus == 1)
9006                 /* Just fallback to the simpler MSI mode. */
9007                 return false;
9008
9009         /*
9010          * We want as many rx rings enabled as there are cpus.
9011          * The first MSIX vector only deals with link interrupts, etc,
9012          * so we add one to the number of vectors we are requesting.
9013          */
9014         tp->irq_cnt = min_t(unsigned, cpus + 1, tp->irq_max);
9015
9016         for (i = 0; i < tp->irq_max; i++) {
9017                 msix_ent[i].entry  = i;
9018                 msix_ent[i].vector = 0;
9019         }
9020
9021         rc = pci_enable_msix(tp->pdev, msix_ent, tp->irq_cnt);
9022         if (rc < 0) {
9023                 return false;
9024         } else if (rc != 0) {
9025                 if (pci_enable_msix(tp->pdev, msix_ent, rc))
9026                         return false;
9027                 netdev_notice(tp->dev, "Requested %d MSI-X vectors, received %d\n",
9028                               tp->irq_cnt, rc);
9029                 tp->irq_cnt = rc;
9030         }
9031
9032         for (i = 0; i < tp->irq_max; i++)
9033                 tp->napi[i].irq_vec = msix_ent[i].vector;
9034
9035         netif_set_real_num_tx_queues(tp->dev, 1);
9036         rc = tp->irq_cnt > 1 ? tp->irq_cnt - 1 : 1;
9037         if (netif_set_real_num_rx_queues(tp->dev, rc)) {
9038                 pci_disable_msix(tp->pdev);
9039                 return false;
9040         }
9041         if (tp->irq_cnt > 1)
9042                 tp->tg3_flags3 |= TG3_FLG3_ENABLE_RSS;
9043
9044         return true;
9045 }
9046
9047 static void tg3_ints_init(struct tg3 *tp)
9048 {
9049         if ((tp->tg3_flags & TG3_FLAG_SUPPORT_MSI_OR_MSIX) &&
9050             !(tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)) {
9051                 /* All MSI supporting chips should support tagged
9052                  * status.  Assert that this is the case.
9053                  */
9054                 netdev_warn(tp->dev,
9055                             "MSI without TAGGED_STATUS? Not using MSI\n");
9056                 goto defcfg;
9057         }
9058
9059         if ((tp->tg3_flags & TG3_FLAG_SUPPORT_MSIX) && tg3_enable_msix(tp))
9060                 tp->tg3_flags2 |= TG3_FLG2_USING_MSIX;
9061         else if ((tp->tg3_flags & TG3_FLAG_SUPPORT_MSI) &&
9062                  pci_enable_msi(tp->pdev) == 0)
9063                 tp->tg3_flags2 |= TG3_FLG2_USING_MSI;
9064
9065         if (tp->tg3_flags2 & TG3_FLG2_USING_MSI_OR_MSIX) {
9066                 u32 msi_mode = tr32(MSGINT_MODE);
9067                 if (tp->tg3_flags2 & TG3_FLG2_USING_MSIX)
9068                         msi_mode |= MSGINT_MODE_MULTIVEC_EN;
9069                 tw32(MSGINT_MODE, msi_mode | MSGINT_MODE_ENABLE);
9070         }
9071 defcfg:
9072         if (!(tp->tg3_flags2 & TG3_FLG2_USING_MSIX)) {
9073                 tp->irq_cnt = 1;
9074                 tp->napi[0].irq_vec = tp->pdev->irq;
9075                 netif_set_real_num_tx_queues(tp->dev, 1);
9076                 netif_set_real_num_rx_queues(tp->dev, 1);
9077         }
9078 }
9079
9080 static void tg3_ints_fini(struct tg3 *tp)
9081 {
9082         if (tp->tg3_flags2 & TG3_FLG2_USING_MSIX)
9083                 pci_disable_msix(tp->pdev);
9084         else if (tp->tg3_flags2 & TG3_FLG2_USING_MSI)
9085                 pci_disable_msi(tp->pdev);
9086         tp->tg3_flags2 &= ~TG3_FLG2_USING_MSI_OR_MSIX;
9087         tp->tg3_flags3 &= ~(TG3_FLG3_ENABLE_RSS | TG3_FLG3_ENABLE_TSS);
9088 }
9089
9090 static int tg3_open(struct net_device *dev)
9091 {
9092         struct tg3 *tp = netdev_priv(dev);
9093         int i, err;
9094
9095         if (tp->fw_needed) {
9096                 err = tg3_request_firmware(tp);
9097                 if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0) {
9098                         if (err)
9099                                 return err;
9100                 } else if (err) {
9101                         netdev_warn(tp->dev, "TSO capability disabled\n");
9102                         tp->tg3_flags2 &= ~TG3_FLG2_TSO_CAPABLE;
9103                 } else if (!(tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE)) {
9104                         netdev_notice(tp->dev, "TSO capability restored\n");
9105                         tp->tg3_flags2 |= TG3_FLG2_TSO_CAPABLE;
9106                 }
9107         }
9108
9109         netif_carrier_off(tp->dev);
9110
9111         err = tg3_set_power_state(tp, PCI_D0);
9112         if (err)
9113                 return err;
9114
9115         tg3_full_lock(tp, 0);
9116
9117         tg3_disable_ints(tp);
9118         tp->tg3_flags &= ~TG3_FLAG_INIT_COMPLETE;
9119
9120         tg3_full_unlock(tp);
9121
9122         /*
9123          * Setup interrupts first so we know how
9124          * many NAPI resources to allocate
9125          */
9126         tg3_ints_init(tp);
9127
9128         /* The placement of this call is tied
9129          * to the setup and use of Host TX descriptors.
9130          */
9131         err = tg3_alloc_consistent(tp);
9132         if (err)
9133                 goto err_out1;
9134
9135         tg3_napi_init(tp);
9136
9137         tg3_napi_enable(tp);
9138
9139         for (i = 0; i < tp->irq_cnt; i++) {
9140                 struct tg3_napi *tnapi = &tp->napi[i];
9141                 err = tg3_request_irq(tp, i);
9142                 if (err) {
9143                         for (i--; i >= 0; i--)
9144                                 free_irq(tnapi->irq_vec, tnapi);
9145                         break;
9146                 }
9147         }
9148
9149         if (err)
9150                 goto err_out2;
9151
9152         tg3_full_lock(tp, 0);
9153
9154         err = tg3_init_hw(tp, 1);
9155         if (err) {
9156                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
9157                 tg3_free_rings(tp);
9158         } else {
9159                 if (tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)
9160                         tp->timer_offset = HZ;
9161                 else
9162                         tp->timer_offset = HZ / 10;
9163
9164                 BUG_ON(tp->timer_offset > HZ);
9165                 tp->timer_counter = tp->timer_multiplier =
9166                         (HZ / tp->timer_offset);
9167                 tp->asf_counter = tp->asf_multiplier =
9168                         ((HZ / tp->timer_offset) * 2);
9169
9170                 init_timer(&tp->timer);
9171                 tp->timer.expires = jiffies + tp->timer_offset;
9172                 tp->timer.data = (unsigned long) tp;
9173                 tp->timer.function = tg3_timer;
9174         }
9175
9176         tg3_full_unlock(tp);
9177
9178         if (err)
9179                 goto err_out3;
9180
9181         if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
9182                 err = tg3_test_msi(tp);
9183
9184                 if (err) {
9185                         tg3_full_lock(tp, 0);
9186                         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
9187                         tg3_free_rings(tp);
9188                         tg3_full_unlock(tp);
9189
9190                         goto err_out2;
9191                 }
9192
9193                 if (!(tp->tg3_flags3 & TG3_FLG3_5717_PLUS) &&
9194                     (tp->tg3_flags2 & TG3_FLG2_USING_MSI)) {
9195                         u32 val = tr32(PCIE_TRANSACTION_CFG);
9196
9197                         tw32(PCIE_TRANSACTION_CFG,
9198                              val | PCIE_TRANS_CFG_1SHOT_MSI);
9199                 }
9200         }
9201
9202         tg3_phy_start(tp);
9203
9204         tg3_full_lock(tp, 0);
9205
9206         add_timer(&tp->timer);
9207         tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
9208         tg3_enable_ints(tp);
9209
9210         tg3_full_unlock(tp);
9211
9212         netif_tx_start_all_queues(dev);
9213
9214         return 0;
9215
9216 err_out3:
9217         for (i = tp->irq_cnt - 1; i >= 0; i--) {
9218                 struct tg3_napi *tnapi = &tp->napi[i];
9219                 free_irq(tnapi->irq_vec, tnapi);
9220         }
9221
9222 err_out2:
9223         tg3_napi_disable(tp);
9224         tg3_napi_fini(tp);
9225         tg3_free_consistent(tp);
9226
9227 err_out1:
9228         tg3_ints_fini(tp);
9229         return err;
9230 }
9231
9232 static struct rtnl_link_stats64 *tg3_get_stats64(struct net_device *,
9233                                                  struct rtnl_link_stats64 *);
9234 static struct tg3_ethtool_stats *tg3_get_estats(struct tg3 *);
9235
9236 static int tg3_close(struct net_device *dev)
9237 {
9238         int i;
9239         struct tg3 *tp = netdev_priv(dev);
9240
9241         tg3_napi_disable(tp);
9242         cancel_work_sync(&tp->reset_task);
9243
9244         netif_tx_stop_all_queues(dev);
9245
9246         del_timer_sync(&tp->timer);
9247
9248         tg3_phy_stop(tp);
9249
9250         tg3_full_lock(tp, 1);
9251
9252         tg3_disable_ints(tp);
9253
9254         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
9255         tg3_free_rings(tp);
9256         tp->tg3_flags &= ~TG3_FLAG_INIT_COMPLETE;
9257
9258         tg3_full_unlock(tp);
9259
9260         for (i = tp->irq_cnt - 1; i >= 0; i--) {
9261                 struct tg3_napi *tnapi = &tp->napi[i];
9262                 free_irq(tnapi->irq_vec, tnapi);
9263         }
9264
9265         tg3_ints_fini(tp);
9266
9267         tg3_get_stats64(tp->dev, &tp->net_stats_prev);
9268
9269         memcpy(&tp->estats_prev, tg3_get_estats(tp),
9270                sizeof(tp->estats_prev));
9271
9272         tg3_napi_fini(tp);
9273
9274         tg3_free_consistent(tp);
9275
9276         tg3_set_power_state(tp, PCI_D3hot);
9277
9278         netif_carrier_off(tp->dev);
9279
9280         return 0;
9281 }
9282
9283 static inline u64 get_stat64(tg3_stat64_t *val)
9284 {
9285        return ((u64)val->high << 32) | ((u64)val->low);
9286 }
9287
9288 static u64 calc_crc_errors(struct tg3 *tp)
9289 {
9290         struct tg3_hw_stats *hw_stats = tp->hw_stats;
9291
9292         if (!(tp->phy_flags & TG3_PHYFLG_PHY_SERDES) &&
9293             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
9294              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)) {
9295                 u32 val;
9296
9297                 spin_lock_bh(&tp->lock);
9298                 if (!tg3_readphy(tp, MII_TG3_TEST1, &val)) {
9299                         tg3_writephy(tp, MII_TG3_TEST1,
9300                                      val | MII_TG3_TEST1_CRC_EN);
9301                         tg3_readphy(tp, MII_TG3_RXR_COUNTERS, &val);
9302                 } else
9303                         val = 0;
9304                 spin_unlock_bh(&tp->lock);
9305
9306                 tp->phy_crc_errors += val;
9307
9308                 return tp->phy_crc_errors;
9309         }
9310
9311         return get_stat64(&hw_stats->rx_fcs_errors);
9312 }
9313
9314 #define ESTAT_ADD(member) \
9315         estats->member =        old_estats->member + \
9316                                 get_stat64(&hw_stats->member)
9317
9318 static struct tg3_ethtool_stats *tg3_get_estats(struct tg3 *tp)
9319 {
9320         struct tg3_ethtool_stats *estats = &tp->estats;
9321         struct tg3_ethtool_stats *old_estats = &tp->estats_prev;
9322         struct tg3_hw_stats *hw_stats = tp->hw_stats;
9323
9324         if (!hw_stats)
9325                 return old_estats;
9326
9327         ESTAT_ADD(rx_octets);
9328         ESTAT_ADD(rx_fragments);
9329         ESTAT_ADD(rx_ucast_packets);
9330         ESTAT_ADD(rx_mcast_packets);
9331         ESTAT_ADD(rx_bcast_packets);
9332         ESTAT_ADD(rx_fcs_errors);
9333         ESTAT_ADD(rx_align_errors);
9334         ESTAT_ADD(rx_xon_pause_rcvd);
9335         ESTAT_ADD(rx_xoff_pause_rcvd);
9336         ESTAT_ADD(rx_mac_ctrl_rcvd);
9337         ESTAT_ADD(rx_xoff_entered);
9338         ESTAT_ADD(rx_frame_too_long_errors);
9339         ESTAT_ADD(rx_jabbers);
9340         ESTAT_ADD(rx_undersize_packets);
9341         ESTAT_ADD(rx_in_length_errors);
9342         ESTAT_ADD(rx_out_length_errors);
9343         ESTAT_ADD(rx_64_or_less_octet_packets);
9344         ESTAT_ADD(rx_65_to_127_octet_packets);
9345         ESTAT_ADD(rx_128_to_255_octet_packets);
9346         ESTAT_ADD(rx_256_to_511_octet_packets);
9347         ESTAT_ADD(rx_512_to_1023_octet_packets);
9348         ESTAT_ADD(rx_1024_to_1522_octet_packets);
9349         ESTAT_ADD(rx_1523_to_2047_octet_packets);
9350         ESTAT_ADD(rx_2048_to_4095_octet_packets);
9351         ESTAT_ADD(rx_4096_to_8191_octet_packets);
9352         ESTAT_ADD(rx_8192_to_9022_octet_packets);
9353
9354         ESTAT_ADD(tx_octets);
9355         ESTAT_ADD(tx_collisions);
9356         ESTAT_ADD(tx_xon_sent);
9357         ESTAT_ADD(tx_xoff_sent);
9358         ESTAT_ADD(tx_flow_control);
9359         ESTAT_ADD(tx_mac_errors);
9360         ESTAT_ADD(tx_single_collisions);
9361         ESTAT_ADD(tx_mult_collisions);
9362         ESTAT_ADD(tx_deferred);
9363         ESTAT_ADD(tx_excessive_collisions);
9364         ESTAT_ADD(tx_late_collisions);
9365         ESTAT_ADD(tx_collide_2times);
9366         ESTAT_ADD(tx_collide_3times);
9367         ESTAT_ADD(tx_collide_4times);
9368         ESTAT_ADD(tx_collide_5times);
9369         ESTAT_ADD(tx_collide_6times);
9370         ESTAT_ADD(tx_collide_7times);
9371         ESTAT_ADD(tx_collide_8times);
9372         ESTAT_ADD(tx_collide_9times);
9373         ESTAT_ADD(tx_collide_10times);
9374         ESTAT_ADD(tx_collide_11times);
9375         ESTAT_ADD(tx_collide_12times);
9376         ESTAT_ADD(tx_collide_13times);
9377         ESTAT_ADD(tx_collide_14times);
9378         ESTAT_ADD(tx_collide_15times);
9379         ESTAT_ADD(tx_ucast_packets);
9380         ESTAT_ADD(tx_mcast_packets);
9381         ESTAT_ADD(tx_bcast_packets);
9382         ESTAT_ADD(tx_carrier_sense_errors);
9383         ESTAT_ADD(tx_discards);
9384         ESTAT_ADD(tx_errors);
9385
9386         ESTAT_ADD(dma_writeq_full);
9387         ESTAT_ADD(dma_write_prioq_full);
9388         ESTAT_ADD(rxbds_empty);
9389         ESTAT_ADD(rx_discards);
9390         ESTAT_ADD(rx_errors);
9391         ESTAT_ADD(rx_threshold_hit);
9392
9393         ESTAT_ADD(dma_readq_full);
9394         ESTAT_ADD(dma_read_prioq_full);
9395         ESTAT_ADD(tx_comp_queue_full);
9396
9397         ESTAT_ADD(ring_set_send_prod_index);
9398         ESTAT_ADD(ring_status_update);
9399         ESTAT_ADD(nic_irqs);
9400         ESTAT_ADD(nic_avoided_irqs);
9401         ESTAT_ADD(nic_tx_threshold_hit);
9402
9403         return estats;
9404 }
9405
9406 static struct rtnl_link_stats64 *tg3_get_stats64(struct net_device *dev,
9407                                                  struct rtnl_link_stats64 *stats)
9408 {
9409         struct tg3 *tp = netdev_priv(dev);
9410         struct rtnl_link_stats64 *old_stats = &tp->net_stats_prev;
9411         struct tg3_hw_stats *hw_stats = tp->hw_stats;
9412
9413         if (!hw_stats)
9414                 return old_stats;
9415
9416         stats->rx_packets = old_stats->rx_packets +
9417                 get_stat64(&hw_stats->rx_ucast_packets) +
9418                 get_stat64(&hw_stats->rx_mcast_packets) +
9419                 get_stat64(&hw_stats->rx_bcast_packets);
9420
9421         stats->tx_packets = old_stats->tx_packets +
9422                 get_stat64(&hw_stats->tx_ucast_packets) +
9423                 get_stat64(&hw_stats->tx_mcast_packets) +
9424                 get_stat64(&hw_stats->tx_bcast_packets);
9425
9426         stats->rx_bytes = old_stats->rx_bytes +
9427                 get_stat64(&hw_stats->rx_octets);
9428         stats->tx_bytes = old_stats->tx_bytes +
9429                 get_stat64(&hw_stats->tx_octets);
9430
9431         stats->rx_errors = old_stats->rx_errors +
9432                 get_stat64(&hw_stats->rx_errors);
9433         stats->tx_errors = old_stats->tx_errors +
9434                 get_stat64(&hw_stats->tx_errors) +
9435                 get_stat64(&hw_stats->tx_mac_errors) +
9436                 get_stat64(&hw_stats->tx_carrier_sense_errors) +
9437                 get_stat64(&hw_stats->tx_discards);
9438
9439         stats->multicast = old_stats->multicast +
9440                 get_stat64(&hw_stats->rx_mcast_packets);
9441         stats->collisions = old_stats->collisions +
9442                 get_stat64(&hw_stats->tx_collisions);
9443
9444         stats->rx_length_errors = old_stats->rx_length_errors +
9445                 get_stat64(&hw_stats->rx_frame_too_long_errors) +
9446                 get_stat64(&hw_stats->rx_undersize_packets);
9447
9448         stats->rx_over_errors = old_stats->rx_over_errors +
9449                 get_stat64(&hw_stats->rxbds_empty);
9450         stats->rx_frame_errors = old_stats->rx_frame_errors +
9451                 get_stat64(&hw_stats->rx_align_errors);
9452         stats->tx_aborted_errors = old_stats->tx_aborted_errors +
9453                 get_stat64(&hw_stats->tx_discards);
9454         stats->tx_carrier_errors = old_stats->tx_carrier_errors +
9455                 get_stat64(&hw_stats->tx_carrier_sense_errors);
9456
9457         stats->rx_crc_errors = old_stats->rx_crc_errors +
9458                 calc_crc_errors(tp);
9459
9460         stats->rx_missed_errors = old_stats->rx_missed_errors +
9461                 get_stat64(&hw_stats->rx_discards);
9462
9463         stats->rx_dropped = tp->rx_dropped;
9464
9465         return stats;
9466 }
9467
9468 static inline u32 calc_crc(unsigned char *buf, int len)
9469 {
9470         u32 reg;
9471         u32 tmp;
9472         int j, k;
9473
9474         reg = 0xffffffff;
9475
9476         for (j = 0; j < len; j++) {
9477                 reg ^= buf[j];
9478
9479                 for (k = 0; k < 8; k++) {
9480                         tmp = reg & 0x01;
9481
9482                         reg >>= 1;
9483
9484                         if (tmp)
9485                                 reg ^= 0xedb88320;
9486                 }
9487         }
9488
9489         return ~reg;
9490 }
9491
9492 static void tg3_set_multi(struct tg3 *tp, unsigned int accept_all)
9493 {
9494         /* accept or reject all multicast frames */
9495         tw32(MAC_HASH_REG_0, accept_all ? 0xffffffff : 0);
9496         tw32(MAC_HASH_REG_1, accept_all ? 0xffffffff : 0);
9497         tw32(MAC_HASH_REG_2, accept_all ? 0xffffffff : 0);
9498         tw32(MAC_HASH_REG_3, accept_all ? 0xffffffff : 0);
9499 }
9500
9501 static void __tg3_set_rx_mode(struct net_device *dev)
9502 {
9503         struct tg3 *tp = netdev_priv(dev);
9504         u32 rx_mode;
9505
9506         rx_mode = tp->rx_mode & ~(RX_MODE_PROMISC |
9507                                   RX_MODE_KEEP_VLAN_TAG);
9508
9509         /* When ASF is in use, we always keep the RX_MODE_KEEP_VLAN_TAG
9510          * flag clear.
9511          */
9512 #if TG3_VLAN_TAG_USED
9513         if (!tp->vlgrp &&
9514             !(tp->tg3_flags & TG3_FLAG_ENABLE_ASF))
9515                 rx_mode |= RX_MODE_KEEP_VLAN_TAG;
9516 #else
9517         /* By definition, VLAN is disabled always in this
9518          * case.
9519          */
9520         if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF))
9521                 rx_mode |= RX_MODE_KEEP_VLAN_TAG;
9522 #endif
9523
9524         if (dev->flags & IFF_PROMISC) {
9525                 /* Promiscuous mode. */
9526                 rx_mode |= RX_MODE_PROMISC;
9527         } else if (dev->flags & IFF_ALLMULTI) {
9528                 /* Accept all multicast. */
9529                 tg3_set_multi(tp, 1);
9530         } else if (netdev_mc_empty(dev)) {
9531                 /* Reject all multicast. */
9532                 tg3_set_multi(tp, 0);
9533         } else {
9534                 /* Accept one or more multicast(s). */
9535                 struct netdev_hw_addr *ha;
9536                 u32 mc_filter[4] = { 0, };
9537                 u32 regidx;
9538                 u32 bit;
9539                 u32 crc;
9540
9541                 netdev_for_each_mc_addr(ha, dev) {
9542                         crc = calc_crc(ha->addr, ETH_ALEN);
9543                         bit = ~crc & 0x7f;
9544                         regidx = (bit & 0x60) >> 5;
9545                         bit &= 0x1f;
9546                         mc_filter[regidx] |= (1 << bit);
9547                 }
9548
9549                 tw32(MAC_HASH_REG_0, mc_filter[0]);
9550                 tw32(MAC_HASH_REG_1, mc_filter[1]);
9551                 tw32(MAC_HASH_REG_2, mc_filter[2]);
9552                 tw32(MAC_HASH_REG_3, mc_filter[3]);
9553         }
9554
9555         if (rx_mode != tp->rx_mode) {
9556                 tp->rx_mode = rx_mode;
9557                 tw32_f(MAC_RX_MODE, rx_mode);
9558                 udelay(10);
9559         }
9560 }
9561
9562 static void tg3_set_rx_mode(struct net_device *dev)
9563 {
9564         struct tg3 *tp = netdev_priv(dev);
9565
9566         if (!netif_running(dev))
9567                 return;
9568
9569         tg3_full_lock(tp, 0);
9570         __tg3_set_rx_mode(dev);
9571         tg3_full_unlock(tp);
9572 }
9573
9574 #define TG3_REGDUMP_LEN         (32 * 1024)
9575
9576 static int tg3_get_regs_len(struct net_device *dev)
9577 {
9578         return TG3_REGDUMP_LEN;
9579 }
9580
9581 static void tg3_get_regs(struct net_device *dev,
9582                 struct ethtool_regs *regs, void *_p)
9583 {
9584         u32 *p = _p;
9585         struct tg3 *tp = netdev_priv(dev);
9586         u8 *orig_p = _p;
9587         int i;
9588
9589         regs->version = 0;
9590
9591         memset(p, 0, TG3_REGDUMP_LEN);
9592
9593         if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)
9594                 return;
9595
9596         tg3_full_lock(tp, 0);
9597
9598 #define __GET_REG32(reg)        (*(p)++ = tr32(reg))
9599 #define GET_REG32_LOOP(base, len)               \
9600 do {    p = (u32 *)(orig_p + (base));           \
9601         for (i = 0; i < len; i += 4)            \
9602                 __GET_REG32((base) + i);        \
9603 } while (0)
9604 #define GET_REG32_1(reg)                        \
9605 do {    p = (u32 *)(orig_p + (reg));            \
9606         __GET_REG32((reg));                     \
9607 } while (0)
9608
9609         GET_REG32_LOOP(TG3PCI_VENDOR, 0xb0);
9610         GET_REG32_LOOP(MAILBOX_INTERRUPT_0, 0x200);
9611         GET_REG32_LOOP(MAC_MODE, 0x4f0);
9612         GET_REG32_LOOP(SNDDATAI_MODE, 0xe0);
9613         GET_REG32_1(SNDDATAC_MODE);
9614         GET_REG32_LOOP(SNDBDS_MODE, 0x80);
9615         GET_REG32_LOOP(SNDBDI_MODE, 0x48);
9616         GET_REG32_1(SNDBDC_MODE);
9617         GET_REG32_LOOP(RCVLPC_MODE, 0x20);
9618         GET_REG32_LOOP(RCVLPC_SELLST_BASE, 0x15c);
9619         GET_REG32_LOOP(RCVDBDI_MODE, 0x0c);
9620         GET_REG32_LOOP(RCVDBDI_JUMBO_BD, 0x3c);
9621         GET_REG32_LOOP(RCVDBDI_BD_PROD_IDX_0, 0x44);
9622         GET_REG32_1(RCVDCC_MODE);
9623         GET_REG32_LOOP(RCVBDI_MODE, 0x20);
9624         GET_REG32_LOOP(RCVCC_MODE, 0x14);
9625         GET_REG32_LOOP(RCVLSC_MODE, 0x08);
9626         GET_REG32_1(MBFREE_MODE);
9627         GET_REG32_LOOP(HOSTCC_MODE, 0x100);
9628         GET_REG32_LOOP(MEMARB_MODE, 0x10);
9629         GET_REG32_LOOP(BUFMGR_MODE, 0x58);
9630         GET_REG32_LOOP(RDMAC_MODE, 0x08);
9631         GET_REG32_LOOP(WDMAC_MODE, 0x08);
9632         GET_REG32_1(RX_CPU_MODE);
9633         GET_REG32_1(RX_CPU_STATE);
9634         GET_REG32_1(RX_CPU_PGMCTR);
9635         GET_REG32_1(RX_CPU_HWBKPT);
9636         GET_REG32_1(TX_CPU_MODE);
9637         GET_REG32_1(TX_CPU_STATE);
9638         GET_REG32_1(TX_CPU_PGMCTR);
9639         GET_REG32_LOOP(GRCMBOX_INTERRUPT_0, 0x110);
9640         GET_REG32_LOOP(FTQ_RESET, 0x120);
9641         GET_REG32_LOOP(MSGINT_MODE, 0x0c);
9642         GET_REG32_1(DMAC_MODE);
9643         GET_REG32_LOOP(GRC_MODE, 0x4c);
9644         if (tp->tg3_flags & TG3_FLAG_NVRAM)
9645                 GET_REG32_LOOP(NVRAM_CMD, 0x24);
9646
9647 #undef __GET_REG32
9648 #undef GET_REG32_LOOP
9649 #undef GET_REG32_1
9650
9651         tg3_full_unlock(tp);
9652 }
9653
9654 static int tg3_get_eeprom_len(struct net_device *dev)
9655 {
9656         struct tg3 *tp = netdev_priv(dev);
9657
9658         return tp->nvram_size;
9659 }
9660
9661 static int tg3_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, u8 *data)
9662 {
9663         struct tg3 *tp = netdev_priv(dev);
9664         int ret;
9665         u8  *pd;
9666         u32 i, offset, len, b_offset, b_count;
9667         __be32 val;
9668
9669         if (tp->tg3_flags3 & TG3_FLG3_NO_NVRAM)
9670                 return -EINVAL;
9671
9672         if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)
9673                 return -EAGAIN;
9674
9675         offset = eeprom->offset;
9676         len = eeprom->len;
9677         eeprom->len = 0;
9678
9679         eeprom->magic = TG3_EEPROM_MAGIC;
9680
9681         if (offset & 3) {
9682                 /* adjustments to start on required 4 byte boundary */
9683                 b_offset = offset & 3;
9684                 b_count = 4 - b_offset;
9685                 if (b_count > len) {
9686                         /* i.e. offset=1 len=2 */
9687                         b_count = len;
9688                 }
9689                 ret = tg3_nvram_read_be32(tp, offset-b_offset, &val);
9690                 if (ret)
9691                         return ret;
9692                 memcpy(data, ((char *)&val) + b_offset, b_count);
9693                 len -= b_count;
9694                 offset += b_count;
9695                 eeprom->len += b_count;
9696         }
9697
9698         /* read bytes upto the last 4 byte boundary */
9699         pd = &data[eeprom->len];
9700         for (i = 0; i < (len - (len & 3)); i += 4) {
9701                 ret = tg3_nvram_read_be32(tp, offset + i, &val);
9702                 if (ret) {
9703                         eeprom->len += i;
9704                         return ret;
9705                 }
9706                 memcpy(pd + i, &val, 4);
9707         }
9708         eeprom->len += i;
9709
9710         if (len & 3) {
9711                 /* read last bytes not ending on 4 byte boundary */
9712                 pd = &data[eeprom->len];
9713                 b_count = len & 3;
9714                 b_offset = offset + len - b_count;
9715                 ret = tg3_nvram_read_be32(tp, b_offset, &val);
9716                 if (ret)
9717                         return ret;
9718                 memcpy(pd, &val, b_count);
9719                 eeprom->len += b_count;
9720         }
9721         return 0;
9722 }
9723
9724 static int tg3_nvram_write_block(struct tg3 *tp, u32 offset, u32 len, u8 *buf);
9725
9726 static int tg3_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, u8 *data)
9727 {
9728         struct tg3 *tp = netdev_priv(dev);
9729         int ret;
9730         u32 offset, len, b_offset, odd_len;
9731         u8 *buf;
9732         __be32 start, end;
9733
9734         if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)
9735                 return -EAGAIN;
9736
9737         if ((tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) ||
9738             eeprom->magic != TG3_EEPROM_MAGIC)
9739                 return -EINVAL;
9740
9741         offset = eeprom->offset;
9742         len = eeprom->len;
9743
9744         if ((b_offset = (offset & 3))) {
9745                 /* adjustments to start on required 4 byte boundary */
9746                 ret = tg3_nvram_read_be32(tp, offset-b_offset, &start);
9747                 if (ret)
9748                         return ret;
9749                 len += b_offset;
9750                 offset &= ~3;
9751                 if (len < 4)
9752                         len = 4;
9753         }
9754
9755         odd_len = 0;
9756         if (len & 3) {
9757                 /* adjustments to end on required 4 byte boundary */
9758                 odd_len = 1;
9759                 len = (len + 3) & ~3;
9760                 ret = tg3_nvram_read_be32(tp, offset+len-4, &end);
9761                 if (ret)
9762                         return ret;
9763         }
9764
9765         buf = data;
9766         if (b_offset || odd_len) {
9767                 buf = kmalloc(len, GFP_KERNEL);
9768                 if (!buf)
9769                         return -ENOMEM;
9770                 if (b_offset)
9771                         memcpy(buf, &start, 4);
9772                 if (odd_len)
9773                         memcpy(buf+len-4, &end, 4);
9774                 memcpy(buf + b_offset, data, eeprom->len);
9775         }
9776
9777         ret = tg3_nvram_write_block(tp, offset, len, buf);
9778
9779         if (buf != data)
9780                 kfree(buf);
9781
9782         return ret;
9783 }
9784
9785 static int tg3_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
9786 {
9787         struct tg3 *tp = netdev_priv(dev);
9788
9789         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
9790                 struct phy_device *phydev;
9791                 if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
9792                         return -EAGAIN;
9793                 phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
9794                 return phy_ethtool_gset(phydev, cmd);
9795         }
9796
9797         cmd->supported = (SUPPORTED_Autoneg);
9798
9799         if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY))
9800                 cmd->supported |= (SUPPORTED_1000baseT_Half |
9801                                    SUPPORTED_1000baseT_Full);
9802
9803         if (!(tp->phy_flags & TG3_PHYFLG_ANY_SERDES)) {
9804                 cmd->supported |= (SUPPORTED_100baseT_Half |
9805                                   SUPPORTED_100baseT_Full |
9806                                   SUPPORTED_10baseT_Half |
9807                                   SUPPORTED_10baseT_Full |
9808                                   SUPPORTED_TP);
9809                 cmd->port = PORT_TP;
9810         } else {
9811                 cmd->supported |= SUPPORTED_FIBRE;
9812                 cmd->port = PORT_FIBRE;
9813         }
9814
9815         cmd->advertising = tp->link_config.advertising;
9816         if (netif_running(dev)) {
9817                 cmd->speed = tp->link_config.active_speed;
9818                 cmd->duplex = tp->link_config.active_duplex;
9819         } else {
9820                 cmd->speed = SPEED_INVALID;
9821                 cmd->duplex = DUPLEX_INVALID;
9822         }
9823         cmd->phy_address = tp->phy_addr;
9824         cmd->transceiver = XCVR_INTERNAL;
9825         cmd->autoneg = tp->link_config.autoneg;
9826         cmd->maxtxpkt = 0;
9827         cmd->maxrxpkt = 0;
9828         return 0;
9829 }
9830
9831 static int tg3_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
9832 {
9833         struct tg3 *tp = netdev_priv(dev);
9834
9835         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
9836                 struct phy_device *phydev;
9837                 if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
9838                         return -EAGAIN;
9839                 phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
9840                 return phy_ethtool_sset(phydev, cmd);
9841         }
9842
9843         if (cmd->autoneg != AUTONEG_ENABLE &&
9844             cmd->autoneg != AUTONEG_DISABLE)
9845                 return -EINVAL;
9846
9847         if (cmd->autoneg == AUTONEG_DISABLE &&
9848             cmd->duplex != DUPLEX_FULL &&
9849             cmd->duplex != DUPLEX_HALF)
9850                 return -EINVAL;
9851
9852         if (cmd->autoneg == AUTONEG_ENABLE) {
9853                 u32 mask = ADVERTISED_Autoneg |
9854                            ADVERTISED_Pause |
9855                            ADVERTISED_Asym_Pause;
9856
9857                 if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY))
9858                         mask |= ADVERTISED_1000baseT_Half |
9859                                 ADVERTISED_1000baseT_Full;
9860
9861                 if (!(tp->phy_flags & TG3_PHYFLG_ANY_SERDES))
9862                         mask |= ADVERTISED_100baseT_Half |
9863                                 ADVERTISED_100baseT_Full |
9864                                 ADVERTISED_10baseT_Half |
9865                                 ADVERTISED_10baseT_Full |
9866                                 ADVERTISED_TP;
9867                 else
9868                         mask |= ADVERTISED_FIBRE;
9869
9870                 if (cmd->advertising & ~mask)
9871                         return -EINVAL;
9872
9873                 mask &= (ADVERTISED_1000baseT_Half |
9874                          ADVERTISED_1000baseT_Full |
9875                          ADVERTISED_100baseT_Half |
9876                          ADVERTISED_100baseT_Full |
9877                          ADVERTISED_10baseT_Half |
9878                          ADVERTISED_10baseT_Full);
9879
9880                 cmd->advertising &= mask;
9881         } else {
9882                 if (tp->phy_flags & TG3_PHYFLG_ANY_SERDES) {
9883                         if (cmd->speed != SPEED_1000)
9884                                 return -EINVAL;
9885
9886                         if (cmd->duplex != DUPLEX_FULL)
9887                                 return -EINVAL;
9888                 } else {
9889                         if (cmd->speed != SPEED_100 &&
9890                             cmd->speed != SPEED_10)
9891                                 return -EINVAL;
9892                 }
9893         }
9894
9895         tg3_full_lock(tp, 0);
9896
9897         tp->link_config.autoneg = cmd->autoneg;
9898         if (cmd->autoneg == AUTONEG_ENABLE) {
9899                 tp->link_config.advertising = (cmd->advertising |
9900                                               ADVERTISED_Autoneg);
9901                 tp->link_config.speed = SPEED_INVALID;
9902                 tp->link_config.duplex = DUPLEX_INVALID;
9903         } else {
9904                 tp->link_config.advertising = 0;
9905                 tp->link_config.speed = cmd->speed;
9906                 tp->link_config.duplex = cmd->duplex;
9907         }
9908
9909         tp->link_config.orig_speed = tp->link_config.speed;
9910         tp->link_config.orig_duplex = tp->link_config.duplex;
9911         tp->link_config.orig_autoneg = tp->link_config.autoneg;
9912
9913         if (netif_running(dev))
9914                 tg3_setup_phy(tp, 1);
9915
9916         tg3_full_unlock(tp);
9917
9918         return 0;
9919 }
9920
9921 static void tg3_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
9922 {
9923         struct tg3 *tp = netdev_priv(dev);
9924
9925         strcpy(info->driver, DRV_MODULE_NAME);
9926         strcpy(info->version, DRV_MODULE_VERSION);
9927         strcpy(info->fw_version, tp->fw_ver);
9928         strcpy(info->bus_info, pci_name(tp->pdev));
9929 }
9930
9931 static void tg3_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
9932 {
9933         struct tg3 *tp = netdev_priv(dev);
9934
9935         if ((tp->tg3_flags & TG3_FLAG_WOL_CAP) &&
9936             device_can_wakeup(&tp->pdev->dev))
9937                 wol->supported = WAKE_MAGIC;
9938         else
9939                 wol->supported = 0;
9940         wol->wolopts = 0;
9941         if ((tp->tg3_flags & TG3_FLAG_WOL_ENABLE) &&
9942             device_can_wakeup(&tp->pdev->dev))
9943                 wol->wolopts = WAKE_MAGIC;
9944         memset(&wol->sopass, 0, sizeof(wol->sopass));
9945 }
9946
9947 static int tg3_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
9948 {
9949         struct tg3 *tp = netdev_priv(dev);
9950         struct device *dp = &tp->pdev->dev;
9951
9952         if (wol->wolopts & ~WAKE_MAGIC)
9953                 return -EINVAL;
9954         if ((wol->wolopts & WAKE_MAGIC) &&
9955             !((tp->tg3_flags & TG3_FLAG_WOL_CAP) && device_can_wakeup(dp)))
9956                 return -EINVAL;
9957
9958         device_set_wakeup_enable(dp, wol->wolopts & WAKE_MAGIC);
9959
9960         spin_lock_bh(&tp->lock);
9961         if (device_may_wakeup(dp))
9962                 tp->tg3_flags |= TG3_FLAG_WOL_ENABLE;
9963         else
9964                 tp->tg3_flags &= ~TG3_FLAG_WOL_ENABLE;
9965         spin_unlock_bh(&tp->lock);
9966
9967
9968         return 0;
9969 }
9970
9971 static u32 tg3_get_msglevel(struct net_device *dev)
9972 {
9973         struct tg3 *tp = netdev_priv(dev);
9974         return tp->msg_enable;
9975 }
9976
9977 static void tg3_set_msglevel(struct net_device *dev, u32 value)
9978 {
9979         struct tg3 *tp = netdev_priv(dev);
9980         tp->msg_enable = value;
9981 }
9982
9983 static int tg3_set_tso(struct net_device *dev, u32 value)
9984 {
9985         struct tg3 *tp = netdev_priv(dev);
9986
9987         if (!(tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE)) {
9988                 if (value)
9989                         return -EINVAL;
9990                 return 0;
9991         }
9992         if ((dev->features & NETIF_F_IPV6_CSUM) &&
9993             ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_2) ||
9994              (tp->tg3_flags2 & TG3_FLG2_HW_TSO_3))) {
9995                 if (value) {
9996                         dev->features |= NETIF_F_TSO6;
9997                         if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_3) ||
9998                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
9999                             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
10000                              GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) ||
10001                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
10002                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
10003                                 dev->features |= NETIF_F_TSO_ECN;
10004                 } else
10005                         dev->features &= ~(NETIF_F_TSO6 | NETIF_F_TSO_ECN);
10006         }
10007         return ethtool_op_set_tso(dev, value);
10008 }
10009
10010 static int tg3_nway_reset(struct net_device *dev)
10011 {
10012         struct tg3 *tp = netdev_priv(dev);
10013         int r;
10014
10015         if (!netif_running(dev))
10016                 return -EAGAIN;
10017
10018         if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES)
10019                 return -EINVAL;
10020
10021         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
10022                 if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
10023                         return -EAGAIN;
10024                 r = phy_start_aneg(tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR]);
10025         } else {
10026                 u32 bmcr;
10027
10028                 spin_lock_bh(&tp->lock);
10029                 r = -EINVAL;
10030                 tg3_readphy(tp, MII_BMCR, &bmcr);
10031                 if (!tg3_readphy(tp, MII_BMCR, &bmcr) &&
10032                     ((bmcr & BMCR_ANENABLE) ||
10033                      (tp->phy_flags & TG3_PHYFLG_PARALLEL_DETECT))) {
10034                         tg3_writephy(tp, MII_BMCR, bmcr | BMCR_ANRESTART |
10035                                                    BMCR_ANENABLE);
10036                         r = 0;
10037                 }
10038                 spin_unlock_bh(&tp->lock);
10039         }
10040
10041         return r;
10042 }
10043
10044 static void tg3_get_ringparam(struct net_device *dev, struct ethtool_ringparam *ering)
10045 {
10046         struct tg3 *tp = netdev_priv(dev);
10047
10048         ering->rx_max_pending = tp->rx_std_ring_mask;
10049         ering->rx_mini_max_pending = 0;
10050         if (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE)
10051                 ering->rx_jumbo_max_pending = tp->rx_jmb_ring_mask;
10052         else
10053                 ering->rx_jumbo_max_pending = 0;
10054
10055         ering->tx_max_pending = TG3_TX_RING_SIZE - 1;
10056
10057         ering->rx_pending = tp->rx_pending;
10058         ering->rx_mini_pending = 0;
10059         if (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE)
10060                 ering->rx_jumbo_pending = tp->rx_jumbo_pending;
10061         else
10062                 ering->rx_jumbo_pending = 0;
10063
10064         ering->tx_pending = tp->napi[0].tx_pending;
10065 }
10066
10067 static int tg3_set_ringparam(struct net_device *dev, struct ethtool_ringparam *ering)
10068 {
10069         struct tg3 *tp = netdev_priv(dev);
10070         int i, irq_sync = 0, err = 0;
10071
10072         if ((ering->rx_pending > tp->rx_std_ring_mask) ||
10073             (ering->rx_jumbo_pending > tp->rx_jmb_ring_mask) ||
10074             (ering->tx_pending > TG3_TX_RING_SIZE - 1) ||
10075             (ering->tx_pending <= MAX_SKB_FRAGS) ||
10076             ((tp->tg3_flags2 & TG3_FLG2_TSO_BUG) &&
10077              (ering->tx_pending <= (MAX_SKB_FRAGS * 3))))
10078                 return -EINVAL;
10079
10080         if (netif_running(dev)) {
10081                 tg3_phy_stop(tp);
10082                 tg3_netif_stop(tp);
10083                 irq_sync = 1;
10084         }
10085
10086         tg3_full_lock(tp, irq_sync);
10087
10088         tp->rx_pending = ering->rx_pending;
10089
10090         if ((tp->tg3_flags2 & TG3_FLG2_MAX_RXPEND_64) &&
10091             tp->rx_pending > 63)
10092                 tp->rx_pending = 63;
10093         tp->rx_jumbo_pending = ering->rx_jumbo_pending;
10094
10095         for (i = 0; i < tp->irq_max; i++)
10096                 tp->napi[i].tx_pending = ering->tx_pending;
10097
10098         if (netif_running(dev)) {
10099                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
10100                 err = tg3_restart_hw(tp, 1);
10101                 if (!err)
10102                         tg3_netif_start(tp);
10103         }
10104
10105         tg3_full_unlock(tp);
10106
10107         if (irq_sync && !err)
10108                 tg3_phy_start(tp);
10109
10110         return err;
10111 }
10112
10113 static void tg3_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause)
10114 {
10115         struct tg3 *tp = netdev_priv(dev);
10116
10117         epause->autoneg = (tp->tg3_flags & TG3_FLAG_PAUSE_AUTONEG) != 0;
10118
10119         if (tp->link_config.active_flowctrl & FLOW_CTRL_RX)
10120                 epause->rx_pause = 1;
10121         else
10122                 epause->rx_pause = 0;
10123
10124         if (tp->link_config.active_flowctrl & FLOW_CTRL_TX)
10125                 epause->tx_pause = 1;
10126         else
10127                 epause->tx_pause = 0;
10128 }
10129
10130 static int tg3_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause)
10131 {
10132         struct tg3 *tp = netdev_priv(dev);
10133         int err = 0;
10134
10135         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
10136                 u32 newadv;
10137                 struct phy_device *phydev;
10138
10139                 phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
10140
10141                 if (!(phydev->supported & SUPPORTED_Pause) ||
10142                     (!(phydev->supported & SUPPORTED_Asym_Pause) &&
10143                      (epause->rx_pause != epause->tx_pause)))
10144                         return -EINVAL;
10145
10146                 tp->link_config.flowctrl = 0;
10147                 if (epause->rx_pause) {
10148                         tp->link_config.flowctrl |= FLOW_CTRL_RX;
10149
10150                         if (epause->tx_pause) {
10151                                 tp->link_config.flowctrl |= FLOW_CTRL_TX;
10152                                 newadv = ADVERTISED_Pause;
10153                         } else
10154                                 newadv = ADVERTISED_Pause |
10155                                          ADVERTISED_Asym_Pause;
10156                 } else if (epause->tx_pause) {
10157                         tp->link_config.flowctrl |= FLOW_CTRL_TX;
10158                         newadv = ADVERTISED_Asym_Pause;
10159                 } else
10160                         newadv = 0;
10161
10162                 if (epause->autoneg)
10163                         tp->tg3_flags |= TG3_FLAG_PAUSE_AUTONEG;
10164                 else
10165                         tp->tg3_flags &= ~TG3_FLAG_PAUSE_AUTONEG;
10166
10167                 if (tp->phy_flags & TG3_PHYFLG_IS_CONNECTED) {
10168                         u32 oldadv = phydev->advertising &
10169                                      (ADVERTISED_Pause | ADVERTISED_Asym_Pause);
10170                         if (oldadv != newadv) {
10171                                 phydev->advertising &=
10172                                         ~(ADVERTISED_Pause |
10173                                           ADVERTISED_Asym_Pause);
10174                                 phydev->advertising |= newadv;
10175                                 if (phydev->autoneg) {
10176                                         /*
10177                                          * Always renegotiate the link to
10178                                          * inform our link partner of our
10179                                          * flow control settings, even if the
10180                                          * flow control is forced.  Let
10181                                          * tg3_adjust_link() do the final
10182                                          * flow control setup.
10183                                          */
10184                                         return phy_start_aneg(phydev);
10185                                 }
10186                         }
10187
10188                         if (!epause->autoneg)
10189                                 tg3_setup_flow_control(tp, 0, 0);
10190                 } else {
10191                         tp->link_config.orig_advertising &=
10192                                         ~(ADVERTISED_Pause |
10193                                           ADVERTISED_Asym_Pause);
10194                         tp->link_config.orig_advertising |= newadv;
10195                 }
10196         } else {
10197                 int irq_sync = 0;
10198
10199                 if (netif_running(dev)) {
10200                         tg3_netif_stop(tp);
10201                         irq_sync = 1;
10202                 }
10203
10204                 tg3_full_lock(tp, irq_sync);
10205
10206                 if (epause->autoneg)
10207                         tp->tg3_flags |= TG3_FLAG_PAUSE_AUTONEG;
10208                 else
10209                         tp->tg3_flags &= ~TG3_FLAG_PAUSE_AUTONEG;
10210                 if (epause->rx_pause)
10211                         tp->link_config.flowctrl |= FLOW_CTRL_RX;
10212                 else
10213                         tp->link_config.flowctrl &= ~FLOW_CTRL_RX;
10214                 if (epause->tx_pause)
10215                         tp->link_config.flowctrl |= FLOW_CTRL_TX;
10216                 else
10217                         tp->link_config.flowctrl &= ~FLOW_CTRL_TX;
10218
10219                 if (netif_running(dev)) {
10220                         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
10221                         err = tg3_restart_hw(tp, 1);
10222                         if (!err)
10223                                 tg3_netif_start(tp);
10224                 }
10225
10226                 tg3_full_unlock(tp);
10227         }
10228
10229         return err;
10230 }
10231
10232 static u32 tg3_get_rx_csum(struct net_device *dev)
10233 {
10234         struct tg3 *tp = netdev_priv(dev);
10235         return (tp->tg3_flags & TG3_FLAG_RX_CHECKSUMS) != 0;
10236 }
10237
10238 static int tg3_set_rx_csum(struct net_device *dev, u32 data)
10239 {
10240         struct tg3 *tp = netdev_priv(dev);
10241
10242         if (tp->tg3_flags & TG3_FLAG_BROKEN_CHECKSUMS) {
10243                 if (data != 0)
10244                         return -EINVAL;
10245                 return 0;
10246         }
10247
10248         spin_lock_bh(&tp->lock);
10249         if (data)
10250                 tp->tg3_flags |= TG3_FLAG_RX_CHECKSUMS;
10251         else
10252                 tp->tg3_flags &= ~TG3_FLAG_RX_CHECKSUMS;
10253         spin_unlock_bh(&tp->lock);
10254
10255         return 0;
10256 }
10257
10258 static int tg3_set_tx_csum(struct net_device *dev, u32 data)
10259 {
10260         struct tg3 *tp = netdev_priv(dev);
10261
10262         if (tp->tg3_flags & TG3_FLAG_BROKEN_CHECKSUMS) {
10263                 if (data != 0)
10264                         return -EINVAL;
10265                 return 0;
10266         }
10267
10268         if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
10269                 ethtool_op_set_tx_ipv6_csum(dev, data);
10270         else
10271                 ethtool_op_set_tx_csum(dev, data);
10272
10273         return 0;
10274 }
10275
10276 static int tg3_get_sset_count(struct net_device *dev, int sset)
10277 {
10278         switch (sset) {
10279         case ETH_SS_TEST:
10280                 return TG3_NUM_TEST;
10281         case ETH_SS_STATS:
10282                 return TG3_NUM_STATS;
10283         default:
10284                 return -EOPNOTSUPP;
10285         }
10286 }
10287
10288 static void tg3_get_strings(struct net_device *dev, u32 stringset, u8 *buf)
10289 {
10290         switch (stringset) {
10291         case ETH_SS_STATS:
10292                 memcpy(buf, &ethtool_stats_keys, sizeof(ethtool_stats_keys));
10293                 break;
10294         case ETH_SS_TEST:
10295                 memcpy(buf, &ethtool_test_keys, sizeof(ethtool_test_keys));
10296                 break;
10297         default:
10298                 WARN_ON(1);     /* we need a WARN() */
10299                 break;
10300         }
10301 }
10302
10303 static int tg3_phys_id(struct net_device *dev, u32 data)
10304 {
10305         struct tg3 *tp = netdev_priv(dev);
10306         int i;
10307
10308         if (!netif_running(tp->dev))
10309                 return -EAGAIN;
10310
10311         if (data == 0)
10312                 data = UINT_MAX / 2;
10313
10314         for (i = 0; i < (data * 2); i++) {
10315                 if ((i % 2) == 0)
10316                         tw32(MAC_LED_CTRL, LED_CTRL_LNKLED_OVERRIDE |
10317                                            LED_CTRL_1000MBPS_ON |
10318                                            LED_CTRL_100MBPS_ON |
10319                                            LED_CTRL_10MBPS_ON |
10320                                            LED_CTRL_TRAFFIC_OVERRIDE |
10321                                            LED_CTRL_TRAFFIC_BLINK |
10322                                            LED_CTRL_TRAFFIC_LED);
10323
10324                 else
10325                         tw32(MAC_LED_CTRL, LED_CTRL_LNKLED_OVERRIDE |
10326                                            LED_CTRL_TRAFFIC_OVERRIDE);
10327
10328                 if (msleep_interruptible(500))
10329                         break;
10330         }
10331         tw32(MAC_LED_CTRL, tp->led_ctrl);
10332         return 0;
10333 }
10334
10335 static void tg3_get_ethtool_stats(struct net_device *dev,
10336                                    struct ethtool_stats *estats, u64 *tmp_stats)
10337 {
10338         struct tg3 *tp = netdev_priv(dev);
10339         memcpy(tmp_stats, tg3_get_estats(tp), sizeof(tp->estats));
10340 }
10341
10342 #define NVRAM_TEST_SIZE 0x100
10343 #define NVRAM_SELFBOOT_FORMAT1_0_SIZE   0x14
10344 #define NVRAM_SELFBOOT_FORMAT1_2_SIZE   0x18
10345 #define NVRAM_SELFBOOT_FORMAT1_3_SIZE   0x1c
10346 #define NVRAM_SELFBOOT_HW_SIZE 0x20
10347 #define NVRAM_SELFBOOT_DATA_SIZE 0x1c
10348
10349 static int tg3_test_nvram(struct tg3 *tp)
10350 {
10351         u32 csum, magic;
10352         __be32 *buf;
10353         int i, j, k, err = 0, size;
10354
10355         if (tp->tg3_flags3 & TG3_FLG3_NO_NVRAM)
10356                 return 0;
10357
10358         if (tg3_nvram_read(tp, 0, &magic) != 0)
10359                 return -EIO;
10360
10361         if (magic == TG3_EEPROM_MAGIC)
10362                 size = NVRAM_TEST_SIZE;
10363         else if ((magic & TG3_EEPROM_MAGIC_FW_MSK) == TG3_EEPROM_MAGIC_FW) {
10364                 if ((magic & TG3_EEPROM_SB_FORMAT_MASK) ==
10365                     TG3_EEPROM_SB_FORMAT_1) {
10366                         switch (magic & TG3_EEPROM_SB_REVISION_MASK) {
10367                         case TG3_EEPROM_SB_REVISION_0:
10368                                 size = NVRAM_SELFBOOT_FORMAT1_0_SIZE;
10369                                 break;
10370                         case TG3_EEPROM_SB_REVISION_2:
10371                                 size = NVRAM_SELFBOOT_FORMAT1_2_SIZE;
10372                                 break;
10373                         case TG3_EEPROM_SB_REVISION_3:
10374                                 size = NVRAM_SELFBOOT_FORMAT1_3_SIZE;
10375                                 break;
10376                         default:
10377                                 return 0;
10378                         }
10379                 } else
10380                         return 0;
10381         } else if ((magic & TG3_EEPROM_MAGIC_HW_MSK) == TG3_EEPROM_MAGIC_HW)
10382                 size = NVRAM_SELFBOOT_HW_SIZE;
10383         else
10384                 return -EIO;
10385
10386         buf = kmalloc(size, GFP_KERNEL);
10387         if (buf == NULL)
10388                 return -ENOMEM;
10389
10390         err = -EIO;
10391         for (i = 0, j = 0; i < size; i += 4, j++) {
10392                 err = tg3_nvram_read_be32(tp, i, &buf[j]);
10393                 if (err)
10394                         break;
10395         }
10396         if (i < size)
10397                 goto out;
10398
10399         /* Selfboot format */
10400         magic = be32_to_cpu(buf[0]);
10401         if ((magic & TG3_EEPROM_MAGIC_FW_MSK) ==
10402             TG3_EEPROM_MAGIC_FW) {
10403                 u8 *buf8 = (u8 *) buf, csum8 = 0;
10404
10405                 if ((magic & TG3_EEPROM_SB_REVISION_MASK) ==
10406                     TG3_EEPROM_SB_REVISION_2) {
10407                         /* For rev 2, the csum doesn't include the MBA. */
10408                         for (i = 0; i < TG3_EEPROM_SB_F1R2_MBA_OFF; i++)
10409                                 csum8 += buf8[i];
10410                         for (i = TG3_EEPROM_SB_F1R2_MBA_OFF + 4; i < size; i++)
10411                                 csum8 += buf8[i];
10412                 } else {
10413                         for (i = 0; i < size; i++)
10414                                 csum8 += buf8[i];
10415                 }
10416
10417                 if (csum8 == 0) {
10418                         err = 0;
10419                         goto out;
10420                 }
10421
10422                 err = -EIO;
10423                 goto out;
10424         }
10425
10426         if ((magic & TG3_EEPROM_MAGIC_HW_MSK) ==
10427             TG3_EEPROM_MAGIC_HW) {
10428                 u8 data[NVRAM_SELFBOOT_DATA_SIZE];
10429                 u8 parity[NVRAM_SELFBOOT_DATA_SIZE];
10430                 u8 *buf8 = (u8 *) buf;
10431
10432                 /* Separate the parity bits and the data bytes.  */
10433                 for (i = 0, j = 0, k = 0; i < NVRAM_SELFBOOT_HW_SIZE; i++) {
10434                         if ((i == 0) || (i == 8)) {
10435                                 int l;
10436                                 u8 msk;
10437
10438                                 for (l = 0, msk = 0x80; l < 7; l++, msk >>= 1)
10439                                         parity[k++] = buf8[i] & msk;
10440                                 i++;
10441                         } else if (i == 16) {
10442                                 int l;
10443                                 u8 msk;
10444
10445                                 for (l = 0, msk = 0x20; l < 6; l++, msk >>= 1)
10446                                         parity[k++] = buf8[i] & msk;
10447                                 i++;
10448
10449                                 for (l = 0, msk = 0x80; l < 8; l++, msk >>= 1)
10450                                         parity[k++] = buf8[i] & msk;
10451                                 i++;
10452                         }
10453                         data[j++] = buf8[i];
10454                 }
10455
10456                 err = -EIO;
10457                 for (i = 0; i < NVRAM_SELFBOOT_DATA_SIZE; i++) {
10458                         u8 hw8 = hweight8(data[i]);
10459
10460                         if ((hw8 & 0x1) && parity[i])
10461                                 goto out;
10462                         else if (!(hw8 & 0x1) && !parity[i])
10463                                 goto out;
10464                 }
10465                 err = 0;
10466                 goto out;
10467         }
10468
10469         /* Bootstrap checksum at offset 0x10 */
10470         csum = calc_crc((unsigned char *) buf, 0x10);
10471         if (csum != be32_to_cpu(buf[0x10/4]))
10472                 goto out;
10473
10474         /* Manufacturing block starts at offset 0x74, checksum at 0xfc */
10475         csum = calc_crc((unsigned char *) &buf[0x74/4], 0x88);
10476         if (csum != be32_to_cpu(buf[0xfc/4]))
10477                 goto out;
10478
10479         err = 0;
10480
10481 out:
10482         kfree(buf);
10483         return err;
10484 }
10485
10486 #define TG3_SERDES_TIMEOUT_SEC  2
10487 #define TG3_COPPER_TIMEOUT_SEC  6
10488
10489 static int tg3_test_link(struct tg3 *tp)
10490 {
10491         int i, max;
10492
10493         if (!netif_running(tp->dev))
10494                 return -ENODEV;
10495
10496         if (tp->phy_flags & TG3_PHYFLG_ANY_SERDES)
10497                 max = TG3_SERDES_TIMEOUT_SEC;
10498         else
10499                 max = TG3_COPPER_TIMEOUT_SEC;
10500
10501         for (i = 0; i < max; i++) {
10502                 if (netif_carrier_ok(tp->dev))
10503                         return 0;
10504
10505                 if (msleep_interruptible(1000))
10506                         break;
10507         }
10508
10509         return -EIO;
10510 }
10511
10512 /* Only test the commonly used registers */
10513 static int tg3_test_registers(struct tg3 *tp)
10514 {
10515         int i, is_5705, is_5750;
10516         u32 offset, read_mask, write_mask, val, save_val, read_val;
10517         static struct {
10518                 u16 offset;
10519                 u16 flags;
10520 #define TG3_FL_5705     0x1
10521 #define TG3_FL_NOT_5705 0x2
10522 #define TG3_FL_NOT_5788 0x4
10523 #define TG3_FL_NOT_5750 0x8
10524                 u32 read_mask;
10525                 u32 write_mask;
10526         } reg_tbl[] = {
10527                 /* MAC Control Registers */
10528                 { MAC_MODE, TG3_FL_NOT_5705,
10529                         0x00000000, 0x00ef6f8c },
10530                 { MAC_MODE, TG3_FL_5705,
10531                         0x00000000, 0x01ef6b8c },
10532                 { MAC_STATUS, TG3_FL_NOT_5705,
10533                         0x03800107, 0x00000000 },
10534                 { MAC_STATUS, TG3_FL_5705,
10535                         0x03800100, 0x00000000 },
10536                 { MAC_ADDR_0_HIGH, 0x0000,
10537                         0x00000000, 0x0000ffff },
10538                 { MAC_ADDR_0_LOW, 0x0000,
10539                         0x00000000, 0xffffffff },
10540                 { MAC_RX_MTU_SIZE, 0x0000,
10541                         0x00000000, 0x0000ffff },
10542                 { MAC_TX_MODE, 0x0000,
10543                         0x00000000, 0x00000070 },
10544                 { MAC_TX_LENGTHS, 0x0000,
10545                         0x00000000, 0x00003fff },
10546                 { MAC_RX_MODE, TG3_FL_NOT_5705,
10547                         0x00000000, 0x000007fc },
10548                 { MAC_RX_MODE, TG3_FL_5705,
10549                         0x00000000, 0x000007dc },
10550                 { MAC_HASH_REG_0, 0x0000,
10551                         0x00000000, 0xffffffff },
10552                 { MAC_HASH_REG_1, 0x0000,
10553                         0x00000000, 0xffffffff },
10554                 { MAC_HASH_REG_2, 0x0000,
10555                         0x00000000, 0xffffffff },
10556                 { MAC_HASH_REG_3, 0x0000,
10557                         0x00000000, 0xffffffff },
10558
10559                 /* Receive Data and Receive BD Initiator Control Registers. */
10560                 { RCVDBDI_JUMBO_BD+0, TG3_FL_NOT_5705,
10561                         0x00000000, 0xffffffff },
10562                 { RCVDBDI_JUMBO_BD+4, TG3_FL_NOT_5705,
10563                         0x00000000, 0xffffffff },
10564                 { RCVDBDI_JUMBO_BD+8, TG3_FL_NOT_5705,
10565                         0x00000000, 0x00000003 },
10566                 { RCVDBDI_JUMBO_BD+0xc, TG3_FL_NOT_5705,
10567                         0x00000000, 0xffffffff },
10568                 { RCVDBDI_STD_BD+0, 0x0000,
10569                         0x00000000, 0xffffffff },
10570                 { RCVDBDI_STD_BD+4, 0x0000,
10571                         0x00000000, 0xffffffff },
10572                 { RCVDBDI_STD_BD+8, 0x0000,
10573                         0x00000000, 0xffff0002 },
10574                 { RCVDBDI_STD_BD+0xc, 0x0000,
10575                         0x00000000, 0xffffffff },
10576
10577                 /* Receive BD Initiator Control Registers. */
10578                 { RCVBDI_STD_THRESH, TG3_FL_NOT_5705,
10579                         0x00000000, 0xffffffff },
10580                 { RCVBDI_STD_THRESH, TG3_FL_5705,
10581                         0x00000000, 0x000003ff },
10582                 { RCVBDI_JUMBO_THRESH, TG3_FL_NOT_5705,
10583                         0x00000000, 0xffffffff },
10584
10585                 /* Host Coalescing Control Registers. */
10586                 { HOSTCC_MODE, TG3_FL_NOT_5705,
10587                         0x00000000, 0x00000004 },
10588                 { HOSTCC_MODE, TG3_FL_5705,
10589                         0x00000000, 0x000000f6 },
10590                 { HOSTCC_RXCOL_TICKS, TG3_FL_NOT_5705,
10591                         0x00000000, 0xffffffff },
10592                 { HOSTCC_RXCOL_TICKS, TG3_FL_5705,
10593                         0x00000000, 0x000003ff },
10594                 { HOSTCC_TXCOL_TICKS, TG3_FL_NOT_5705,
10595                         0x00000000, 0xffffffff },
10596                 { HOSTCC_TXCOL_TICKS, TG3_FL_5705,
10597                         0x00000000, 0x000003ff },
10598                 { HOSTCC_RXMAX_FRAMES, TG3_FL_NOT_5705,
10599                         0x00000000, 0xffffffff },
10600                 { HOSTCC_RXMAX_FRAMES, TG3_FL_5705 | TG3_FL_NOT_5788,
10601                         0x00000000, 0x000000ff },
10602                 { HOSTCC_TXMAX_FRAMES, TG3_FL_NOT_5705,
10603                         0x00000000, 0xffffffff },
10604                 { HOSTCC_TXMAX_FRAMES, TG3_FL_5705 | TG3_FL_NOT_5788,
10605                         0x00000000, 0x000000ff },
10606                 { HOSTCC_RXCOAL_TICK_INT, TG3_FL_NOT_5705,
10607                         0x00000000, 0xffffffff },
10608                 { HOSTCC_TXCOAL_TICK_INT, TG3_FL_NOT_5705,
10609                         0x00000000, 0xffffffff },
10610                 { HOSTCC_RXCOAL_MAXF_INT, TG3_FL_NOT_5705,
10611                         0x00000000, 0xffffffff },
10612                 { HOSTCC_RXCOAL_MAXF_INT, TG3_FL_5705 | TG3_FL_NOT_5788,
10613                         0x00000000, 0x000000ff },
10614                 { HOSTCC_TXCOAL_MAXF_INT, TG3_FL_NOT_5705,
10615                         0x00000000, 0xffffffff },
10616                 { HOSTCC_TXCOAL_MAXF_INT, TG3_FL_5705 | TG3_FL_NOT_5788,
10617                         0x00000000, 0x000000ff },
10618                 { HOSTCC_STAT_COAL_TICKS, TG3_FL_NOT_5705,
10619                         0x00000000, 0xffffffff },
10620                 { HOSTCC_STATS_BLK_HOST_ADDR, TG3_FL_NOT_5705,
10621                         0x00000000, 0xffffffff },
10622                 { HOSTCC_STATS_BLK_HOST_ADDR+4, TG3_FL_NOT_5705,
10623                         0x00000000, 0xffffffff },
10624                 { HOSTCC_STATUS_BLK_HOST_ADDR, 0x0000,
10625                         0x00000000, 0xffffffff },
10626                 { HOSTCC_STATUS_BLK_HOST_ADDR+4, 0x0000,
10627                         0x00000000, 0xffffffff },
10628                 { HOSTCC_STATS_BLK_NIC_ADDR, 0x0000,
10629                         0xffffffff, 0x00000000 },
10630                 { HOSTCC_STATUS_BLK_NIC_ADDR, 0x0000,
10631                         0xffffffff, 0x00000000 },
10632
10633                 /* Buffer Manager Control Registers. */
10634                 { BUFMGR_MB_POOL_ADDR, TG3_FL_NOT_5750,
10635                         0x00000000, 0x007fff80 },
10636                 { BUFMGR_MB_POOL_SIZE, TG3_FL_NOT_5750,
10637                         0x00000000, 0x007fffff },
10638                 { BUFMGR_MB_RDMA_LOW_WATER, 0x0000,
10639                         0x00000000, 0x0000003f },
10640                 { BUFMGR_MB_MACRX_LOW_WATER, 0x0000,
10641                         0x00000000, 0x000001ff },
10642                 { BUFMGR_MB_HIGH_WATER, 0x0000,
10643                         0x00000000, 0x000001ff },
10644                 { BUFMGR_DMA_DESC_POOL_ADDR, TG3_FL_NOT_5705,
10645                         0xffffffff, 0x00000000 },
10646                 { BUFMGR_DMA_DESC_POOL_SIZE, TG3_FL_NOT_5705,
10647                         0xffffffff, 0x00000000 },
10648
10649                 /* Mailbox Registers */
10650                 { GRCMBOX_RCVSTD_PROD_IDX+4, 0x0000,
10651                         0x00000000, 0x000001ff },
10652                 { GRCMBOX_RCVJUMBO_PROD_IDX+4, TG3_FL_NOT_5705,
10653                         0x00000000, 0x000001ff },
10654                 { GRCMBOX_RCVRET_CON_IDX_0+4, 0x0000,
10655                         0x00000000, 0x000007ff },
10656                 { GRCMBOX_SNDHOST_PROD_IDX_0+4, 0x0000,
10657                         0x00000000, 0x000001ff },
10658
10659                 { 0xffff, 0x0000, 0x00000000, 0x00000000 },
10660         };
10661
10662         is_5705 = is_5750 = 0;
10663         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
10664                 is_5705 = 1;
10665                 if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS)
10666                         is_5750 = 1;
10667         }
10668
10669         for (i = 0; reg_tbl[i].offset != 0xffff; i++) {
10670                 if (is_5705 && (reg_tbl[i].flags & TG3_FL_NOT_5705))
10671                         continue;
10672
10673                 if (!is_5705 && (reg_tbl[i].flags & TG3_FL_5705))
10674                         continue;
10675
10676                 if ((tp->tg3_flags2 & TG3_FLG2_IS_5788) &&
10677                     (reg_tbl[i].flags & TG3_FL_NOT_5788))
10678                         continue;
10679
10680                 if (is_5750 && (reg_tbl[i].flags & TG3_FL_NOT_5750))
10681                         continue;
10682
10683                 offset = (u32) reg_tbl[i].offset;
10684                 read_mask = reg_tbl[i].read_mask;
10685                 write_mask = reg_tbl[i].write_mask;
10686
10687                 /* Save the original register content */
10688                 save_val = tr32(offset);
10689
10690                 /* Determine the read-only value. */
10691                 read_val = save_val & read_mask;
10692
10693                 /* Write zero to the register, then make sure the read-only bits
10694                  * are not changed and the read/write bits are all zeros.
10695                  */
10696                 tw32(offset, 0);
10697
10698                 val = tr32(offset);
10699
10700                 /* Test the read-only and read/write bits. */
10701                 if (((val & read_mask) != read_val) || (val & write_mask))
10702                         goto out;
10703
10704                 /* Write ones to all the bits defined by RdMask and WrMask, then
10705                  * make sure the read-only bits are not changed and the
10706                  * read/write bits are all ones.
10707                  */
10708                 tw32(offset, read_mask | write_mask);
10709
10710                 val = tr32(offset);
10711
10712                 /* Test the read-only bits. */
10713                 if ((val & read_mask) != read_val)
10714                         goto out;
10715
10716                 /* Test the read/write bits. */
10717                 if ((val & write_mask) != write_mask)
10718                         goto out;
10719
10720                 tw32(offset, save_val);
10721         }
10722
10723         return 0;
10724
10725 out:
10726         if (netif_msg_hw(tp))
10727                 netdev_err(tp->dev,
10728                            "Register test failed at offset %x\n", offset);
10729         tw32(offset, save_val);
10730         return -EIO;
10731 }
10732
10733 static int tg3_do_mem_test(struct tg3 *tp, u32 offset, u32 len)
10734 {
10735         static const u32 test_pattern[] = { 0x00000000, 0xffffffff, 0xaa55a55a };
10736         int i;
10737         u32 j;
10738
10739         for (i = 0; i < ARRAY_SIZE(test_pattern); i++) {
10740                 for (j = 0; j < len; j += 4) {
10741                         u32 val;
10742
10743                         tg3_write_mem(tp, offset + j, test_pattern[i]);
10744                         tg3_read_mem(tp, offset + j, &val);
10745                         if (val != test_pattern[i])
10746                                 return -EIO;
10747                 }
10748         }
10749         return 0;
10750 }
10751
10752 static int tg3_test_memory(struct tg3 *tp)
10753 {
10754         static struct mem_entry {
10755                 u32 offset;
10756                 u32 len;
10757         } mem_tbl_570x[] = {
10758                 { 0x00000000, 0x00b50},
10759                 { 0x00002000, 0x1c000},
10760                 { 0xffffffff, 0x00000}
10761         }, mem_tbl_5705[] = {
10762                 { 0x00000100, 0x0000c},
10763                 { 0x00000200, 0x00008},
10764                 { 0x00004000, 0x00800},
10765                 { 0x00006000, 0x01000},
10766                 { 0x00008000, 0x02000},
10767                 { 0x00010000, 0x0e000},
10768                 { 0xffffffff, 0x00000}
10769         }, mem_tbl_5755[] = {
10770                 { 0x00000200, 0x00008},
10771                 { 0x00004000, 0x00800},
10772                 { 0x00006000, 0x00800},
10773                 { 0x00008000, 0x02000},
10774                 { 0x00010000, 0x0c000},
10775                 { 0xffffffff, 0x00000}
10776         }, mem_tbl_5906[] = {
10777                 { 0x00000200, 0x00008},
10778                 { 0x00004000, 0x00400},
10779                 { 0x00006000, 0x00400},
10780                 { 0x00008000, 0x01000},
10781                 { 0x00010000, 0x01000},
10782                 { 0xffffffff, 0x00000}
10783         }, mem_tbl_5717[] = {
10784                 { 0x00000200, 0x00008},
10785                 { 0x00010000, 0x0a000},
10786                 { 0x00020000, 0x13c00},
10787                 { 0xffffffff, 0x00000}
10788         }, mem_tbl_57765[] = {
10789                 { 0x00000200, 0x00008},
10790                 { 0x00004000, 0x00800},
10791                 { 0x00006000, 0x09800},
10792                 { 0x00010000, 0x0a000},
10793                 { 0xffffffff, 0x00000}
10794         };
10795         struct mem_entry *mem_tbl;
10796         int err = 0;
10797         int i;
10798
10799         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
10800             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719)
10801                 mem_tbl = mem_tbl_5717;
10802         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
10803                 mem_tbl = mem_tbl_57765;
10804         else if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
10805                 mem_tbl = mem_tbl_5755;
10806         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
10807                 mem_tbl = mem_tbl_5906;
10808         else if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
10809                 mem_tbl = mem_tbl_5705;
10810         else
10811                 mem_tbl = mem_tbl_570x;
10812
10813         for (i = 0; mem_tbl[i].offset != 0xffffffff; i++) {
10814                 err = tg3_do_mem_test(tp, mem_tbl[i].offset, mem_tbl[i].len);
10815                 if (err)
10816                         break;
10817         }
10818
10819         return err;
10820 }
10821
10822 #define TG3_MAC_LOOPBACK        0
10823 #define TG3_PHY_LOOPBACK        1
10824
10825 static int tg3_run_loopback(struct tg3 *tp, int loopback_mode)
10826 {
10827         u32 mac_mode, rx_start_idx, rx_idx, tx_idx, opaque_key;
10828         u32 desc_idx, coal_now;
10829         struct sk_buff *skb, *rx_skb;
10830         u8 *tx_data;
10831         dma_addr_t map;
10832         int num_pkts, tx_len, rx_len, i, err;
10833         struct tg3_rx_buffer_desc *desc;
10834         struct tg3_napi *tnapi, *rnapi;
10835         struct tg3_rx_prodring_set *tpr = &tp->napi[0].prodring;
10836
10837         tnapi = &tp->napi[0];
10838         rnapi = &tp->napi[0];
10839         if (tp->irq_cnt > 1) {
10840                 if (tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS)
10841                         rnapi = &tp->napi[1];
10842                 if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
10843                         tnapi = &tp->napi[1];
10844         }
10845         coal_now = tnapi->coal_now | rnapi->coal_now;
10846
10847         if (loopback_mode == TG3_MAC_LOOPBACK) {
10848                 /* HW errata - mac loopback fails in some cases on 5780.
10849                  * Normal traffic and PHY loopback are not affected by
10850                  * errata.
10851                  */
10852                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780)
10853                         return 0;
10854
10855                 mac_mode = (tp->mac_mode & ~MAC_MODE_PORT_MODE_MASK) |
10856                            MAC_MODE_PORT_INT_LPBACK;
10857                 if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
10858                         mac_mode |= MAC_MODE_LINK_POLARITY;
10859                 if (tp->phy_flags & TG3_PHYFLG_10_100_ONLY)
10860                         mac_mode |= MAC_MODE_PORT_MODE_MII;
10861                 else
10862                         mac_mode |= MAC_MODE_PORT_MODE_GMII;
10863                 tw32(MAC_MODE, mac_mode);
10864         } else if (loopback_mode == TG3_PHY_LOOPBACK) {
10865                 u32 val;
10866
10867                 if (tp->phy_flags & TG3_PHYFLG_IS_FET) {
10868                         tg3_phy_fet_toggle_apd(tp, false);
10869                         val = BMCR_LOOPBACK | BMCR_FULLDPLX | BMCR_SPEED100;
10870                 } else
10871                         val = BMCR_LOOPBACK | BMCR_FULLDPLX | BMCR_SPEED1000;
10872
10873                 tg3_phy_toggle_automdix(tp, 0);
10874
10875                 tg3_writephy(tp, MII_BMCR, val);
10876                 udelay(40);
10877
10878                 mac_mode = tp->mac_mode & ~MAC_MODE_PORT_MODE_MASK;
10879                 if (tp->phy_flags & TG3_PHYFLG_IS_FET) {
10880                         tg3_writephy(tp, MII_TG3_FET_PTEST,
10881                                      MII_TG3_FET_PTEST_FRC_TX_LINK |
10882                                      MII_TG3_FET_PTEST_FRC_TX_LOCK);
10883                         /* The write needs to be flushed for the AC131 */
10884                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
10885                                 tg3_readphy(tp, MII_TG3_FET_PTEST, &val);
10886                         mac_mode |= MAC_MODE_PORT_MODE_MII;
10887                 } else
10888                         mac_mode |= MAC_MODE_PORT_MODE_GMII;
10889
10890                 /* reset to prevent losing 1st rx packet intermittently */
10891                 if (tp->phy_flags & TG3_PHYFLG_MII_SERDES) {
10892                         tw32_f(MAC_RX_MODE, RX_MODE_RESET);
10893                         udelay(10);
10894                         tw32_f(MAC_RX_MODE, tp->rx_mode);
10895                 }
10896                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) {
10897                         u32 masked_phy_id = tp->phy_id & TG3_PHY_ID_MASK;
10898                         if (masked_phy_id == TG3_PHY_ID_BCM5401)
10899                                 mac_mode &= ~MAC_MODE_LINK_POLARITY;
10900                         else if (masked_phy_id == TG3_PHY_ID_BCM5411)
10901                                 mac_mode |= MAC_MODE_LINK_POLARITY;
10902                         tg3_writephy(tp, MII_TG3_EXT_CTRL,
10903                                      MII_TG3_EXT_CTRL_LNK3_LED_MODE);
10904                 }
10905                 tw32(MAC_MODE, mac_mode);
10906         } else {
10907                 return -EINVAL;
10908         }
10909
10910         err = -EIO;
10911
10912         tx_len = 1514;
10913         skb = netdev_alloc_skb(tp->dev, tx_len);
10914         if (!skb)
10915                 return -ENOMEM;
10916
10917         tx_data = skb_put(skb, tx_len);
10918         memcpy(tx_data, tp->dev->dev_addr, 6);
10919         memset(tx_data + 6, 0x0, 8);
10920
10921         tw32(MAC_RX_MTU_SIZE, tx_len + 4);
10922
10923         for (i = 14; i < tx_len; i++)
10924                 tx_data[i] = (u8) (i & 0xff);
10925
10926         map = pci_map_single(tp->pdev, skb->data, tx_len, PCI_DMA_TODEVICE);
10927         if (pci_dma_mapping_error(tp->pdev, map)) {
10928                 dev_kfree_skb(skb);
10929                 return -EIO;
10930         }
10931
10932         tw32_f(HOSTCC_MODE, tp->coalesce_mode | HOSTCC_MODE_ENABLE |
10933                rnapi->coal_now);
10934
10935         udelay(10);
10936
10937         rx_start_idx = rnapi->hw_status->idx[0].rx_producer;
10938
10939         num_pkts = 0;
10940
10941         tg3_set_txd(tnapi, tnapi->tx_prod, map, tx_len, 0, 1);
10942
10943         tnapi->tx_prod++;
10944         num_pkts++;
10945
10946         tw32_tx_mbox(tnapi->prodmbox, tnapi->tx_prod);
10947         tr32_mailbox(tnapi->prodmbox);
10948
10949         udelay(10);
10950
10951         /* 350 usec to allow enough time on some 10/100 Mbps devices.  */
10952         for (i = 0; i < 35; i++) {
10953                 tw32_f(HOSTCC_MODE, tp->coalesce_mode | HOSTCC_MODE_ENABLE |
10954                        coal_now);
10955
10956                 udelay(10);
10957
10958                 tx_idx = tnapi->hw_status->idx[0].tx_consumer;
10959                 rx_idx = rnapi->hw_status->idx[0].rx_producer;
10960                 if ((tx_idx == tnapi->tx_prod) &&
10961                     (rx_idx == (rx_start_idx + num_pkts)))
10962                         break;
10963         }
10964
10965         pci_unmap_single(tp->pdev, map, tx_len, PCI_DMA_TODEVICE);
10966         dev_kfree_skb(skb);
10967
10968         if (tx_idx != tnapi->tx_prod)
10969                 goto out;
10970
10971         if (rx_idx != rx_start_idx + num_pkts)
10972                 goto out;
10973
10974         desc = &rnapi->rx_rcb[rx_start_idx];
10975         desc_idx = desc->opaque & RXD_OPAQUE_INDEX_MASK;
10976         opaque_key = desc->opaque & RXD_OPAQUE_RING_MASK;
10977         if (opaque_key != RXD_OPAQUE_RING_STD)
10978                 goto out;
10979
10980         if ((desc->err_vlan & RXD_ERR_MASK) != 0 &&
10981             (desc->err_vlan != RXD_ERR_ODD_NIBBLE_RCVD_MII))
10982                 goto out;
10983
10984         rx_len = ((desc->idx_len & RXD_LEN_MASK) >> RXD_LEN_SHIFT) - 4;
10985         if (rx_len != tx_len)
10986                 goto out;
10987
10988         rx_skb = tpr->rx_std_buffers[desc_idx].skb;
10989
10990         map = dma_unmap_addr(&tpr->rx_std_buffers[desc_idx], mapping);
10991         pci_dma_sync_single_for_cpu(tp->pdev, map, rx_len, PCI_DMA_FROMDEVICE);
10992
10993         for (i = 14; i < tx_len; i++) {
10994                 if (*(rx_skb->data + i) != (u8) (i & 0xff))
10995                         goto out;
10996         }
10997         err = 0;
10998
10999         /* tg3_free_rings will unmap and free the rx_skb */
11000 out:
11001         return err;
11002 }
11003
11004 #define TG3_MAC_LOOPBACK_FAILED         1
11005 #define TG3_PHY_LOOPBACK_FAILED         2
11006 #define TG3_LOOPBACK_FAILED             (TG3_MAC_LOOPBACK_FAILED |      \
11007                                          TG3_PHY_LOOPBACK_FAILED)
11008
11009 static int tg3_test_loopback(struct tg3 *tp)
11010 {
11011         int err = 0;
11012         u32 cpmuctrl = 0;
11013
11014         if (!netif_running(tp->dev))
11015                 return TG3_LOOPBACK_FAILED;
11016
11017         err = tg3_reset_hw(tp, 1);
11018         if (err)
11019                 return TG3_LOOPBACK_FAILED;
11020
11021         /* Turn off gphy autopowerdown. */
11022         if (tp->phy_flags & TG3_PHYFLG_ENABLE_APD)
11023                 tg3_phy_toggle_apd(tp, false);
11024
11025         if (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) {
11026                 int i;
11027                 u32 status;
11028
11029                 tw32(TG3_CPMU_MUTEX_REQ, CPMU_MUTEX_REQ_DRIVER);
11030
11031                 /* Wait for up to 40 microseconds to acquire lock. */
11032                 for (i = 0; i < 4; i++) {
11033                         status = tr32(TG3_CPMU_MUTEX_GNT);
11034                         if (status == CPMU_MUTEX_GNT_DRIVER)
11035                                 break;
11036                         udelay(10);
11037                 }
11038
11039                 if (status != CPMU_MUTEX_GNT_DRIVER)
11040                         return TG3_LOOPBACK_FAILED;
11041
11042                 /* Turn off link-based power management. */
11043                 cpmuctrl = tr32(TG3_CPMU_CTRL);
11044                 tw32(TG3_CPMU_CTRL,
11045                      cpmuctrl & ~(CPMU_CTRL_LINK_SPEED_MODE |
11046                                   CPMU_CTRL_LINK_AWARE_MODE));
11047         }
11048
11049         if (tg3_run_loopback(tp, TG3_MAC_LOOPBACK))
11050                 err |= TG3_MAC_LOOPBACK_FAILED;
11051
11052         if (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) {
11053                 tw32(TG3_CPMU_CTRL, cpmuctrl);
11054
11055                 /* Release the mutex */
11056                 tw32(TG3_CPMU_MUTEX_GNT, CPMU_MUTEX_GNT_DRIVER);
11057         }
11058
11059         if (!(tp->phy_flags & TG3_PHYFLG_PHY_SERDES) &&
11060             !(tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB)) {
11061                 if (tg3_run_loopback(tp, TG3_PHY_LOOPBACK))
11062                         err |= TG3_PHY_LOOPBACK_FAILED;
11063         }
11064
11065         /* Re-enable gphy autopowerdown. */
11066         if (tp->phy_flags & TG3_PHYFLG_ENABLE_APD)
11067                 tg3_phy_toggle_apd(tp, true);
11068
11069         return err;
11070 }
11071
11072 static void tg3_self_test(struct net_device *dev, struct ethtool_test *etest,
11073                           u64 *data)
11074 {
11075         struct tg3 *tp = netdev_priv(dev);
11076
11077         if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)
11078                 tg3_set_power_state(tp, PCI_D0);
11079
11080         memset(data, 0, sizeof(u64) * TG3_NUM_TEST);
11081
11082         if (tg3_test_nvram(tp) != 0) {
11083                 etest->flags |= ETH_TEST_FL_FAILED;
11084                 data[0] = 1;
11085         }
11086         if (tg3_test_link(tp) != 0) {
11087                 etest->flags |= ETH_TEST_FL_FAILED;
11088                 data[1] = 1;
11089         }
11090         if (etest->flags & ETH_TEST_FL_OFFLINE) {
11091                 int err, err2 = 0, irq_sync = 0;
11092
11093                 if (netif_running(dev)) {
11094                         tg3_phy_stop(tp);
11095                         tg3_netif_stop(tp);
11096                         irq_sync = 1;
11097                 }
11098
11099                 tg3_full_lock(tp, irq_sync);
11100
11101                 tg3_halt(tp, RESET_KIND_SUSPEND, 1);
11102                 err = tg3_nvram_lock(tp);
11103                 tg3_halt_cpu(tp, RX_CPU_BASE);
11104                 if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
11105                         tg3_halt_cpu(tp, TX_CPU_BASE);
11106                 if (!err)
11107                         tg3_nvram_unlock(tp);
11108
11109                 if (tp->phy_flags & TG3_PHYFLG_MII_SERDES)
11110                         tg3_phy_reset(tp);
11111
11112                 if (tg3_test_registers(tp) != 0) {
11113                         etest->flags |= ETH_TEST_FL_FAILED;
11114                         data[2] = 1;
11115                 }
11116                 if (tg3_test_memory(tp) != 0) {
11117                         etest->flags |= ETH_TEST_FL_FAILED;
11118                         data[3] = 1;
11119                 }
11120                 if ((data[4] = tg3_test_loopback(tp)) != 0)
11121                         etest->flags |= ETH_TEST_FL_FAILED;
11122
11123                 tg3_full_unlock(tp);
11124
11125                 if (tg3_test_interrupt(tp) != 0) {
11126                         etest->flags |= ETH_TEST_FL_FAILED;
11127                         data[5] = 1;
11128                 }
11129
11130                 tg3_full_lock(tp, 0);
11131
11132                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
11133                 if (netif_running(dev)) {
11134                         tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
11135                         err2 = tg3_restart_hw(tp, 1);
11136                         if (!err2)
11137                                 tg3_netif_start(tp);
11138                 }
11139
11140                 tg3_full_unlock(tp);
11141
11142                 if (irq_sync && !err2)
11143                         tg3_phy_start(tp);
11144         }
11145         if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)
11146                 tg3_set_power_state(tp, PCI_D3hot);
11147
11148 }
11149
11150 static int tg3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
11151 {
11152         struct mii_ioctl_data *data = if_mii(ifr);
11153         struct tg3 *tp = netdev_priv(dev);
11154         int err;
11155
11156         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
11157                 struct phy_device *phydev;
11158                 if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
11159                         return -EAGAIN;
11160                 phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
11161                 return phy_mii_ioctl(phydev, ifr, cmd);
11162         }
11163
11164         switch (cmd) {
11165         case SIOCGMIIPHY:
11166                 data->phy_id = tp->phy_addr;
11167
11168                 /* fallthru */
11169         case SIOCGMIIREG: {
11170                 u32 mii_regval;
11171
11172                 if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES)
11173                         break;                  /* We have no PHY */
11174
11175                 if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)
11176                         return -EAGAIN;
11177
11178                 spin_lock_bh(&tp->lock);
11179                 err = tg3_readphy(tp, data->reg_num & 0x1f, &mii_regval);
11180                 spin_unlock_bh(&tp->lock);
11181
11182                 data->val_out = mii_regval;
11183
11184                 return err;
11185         }
11186
11187         case SIOCSMIIREG:
11188                 if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES)
11189                         break;                  /* We have no PHY */
11190
11191                 if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)
11192                         return -EAGAIN;
11193
11194                 spin_lock_bh(&tp->lock);
11195                 err = tg3_writephy(tp, data->reg_num & 0x1f, data->val_in);
11196                 spin_unlock_bh(&tp->lock);
11197
11198                 return err;
11199
11200         default:
11201                 /* do nothing */
11202                 break;
11203         }
11204         return -EOPNOTSUPP;
11205 }
11206
11207 #if TG3_VLAN_TAG_USED
11208 static void tg3_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
11209 {
11210         struct tg3 *tp = netdev_priv(dev);
11211
11212         if (!netif_running(dev)) {
11213                 tp->vlgrp = grp;
11214                 return;
11215         }
11216
11217         tg3_netif_stop(tp);
11218
11219         tg3_full_lock(tp, 0);
11220
11221         tp->vlgrp = grp;
11222
11223         /* Update RX_MODE_KEEP_VLAN_TAG bit in RX_MODE register. */
11224         __tg3_set_rx_mode(dev);
11225
11226         tg3_netif_start(tp);
11227
11228         tg3_full_unlock(tp);
11229 }
11230 #endif
11231
11232 static int tg3_get_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
11233 {
11234         struct tg3 *tp = netdev_priv(dev);
11235
11236         memcpy(ec, &tp->coal, sizeof(*ec));
11237         return 0;
11238 }
11239
11240 static int tg3_set_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
11241 {
11242         struct tg3 *tp = netdev_priv(dev);
11243         u32 max_rxcoal_tick_int = 0, max_txcoal_tick_int = 0;
11244         u32 max_stat_coal_ticks = 0, min_stat_coal_ticks = 0;
11245
11246         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
11247                 max_rxcoal_tick_int = MAX_RXCOAL_TICK_INT;
11248                 max_txcoal_tick_int = MAX_TXCOAL_TICK_INT;
11249                 max_stat_coal_ticks = MAX_STAT_COAL_TICKS;
11250                 min_stat_coal_ticks = MIN_STAT_COAL_TICKS;
11251         }
11252
11253         if ((ec->rx_coalesce_usecs > MAX_RXCOL_TICKS) ||
11254             (ec->tx_coalesce_usecs > MAX_TXCOL_TICKS) ||
11255             (ec->rx_max_coalesced_frames > MAX_RXMAX_FRAMES) ||
11256             (ec->tx_max_coalesced_frames > MAX_TXMAX_FRAMES) ||
11257             (ec->rx_coalesce_usecs_irq > max_rxcoal_tick_int) ||
11258             (ec->tx_coalesce_usecs_irq > max_txcoal_tick_int) ||
11259             (ec->rx_max_coalesced_frames_irq > MAX_RXCOAL_MAXF_INT) ||
11260             (ec->tx_max_coalesced_frames_irq > MAX_TXCOAL_MAXF_INT) ||
11261             (ec->stats_block_coalesce_usecs > max_stat_coal_ticks) ||
11262             (ec->stats_block_coalesce_usecs < min_stat_coal_ticks))
11263                 return -EINVAL;
11264
11265         /* No rx interrupts will be generated if both are zero */
11266         if ((ec->rx_coalesce_usecs == 0) &&
11267             (ec->rx_max_coalesced_frames == 0))
11268                 return -EINVAL;
11269
11270         /* No tx interrupts will be generated if both are zero */
11271         if ((ec->tx_coalesce_usecs == 0) &&
11272             (ec->tx_max_coalesced_frames == 0))
11273                 return -EINVAL;
11274
11275         /* Only copy relevant parameters, ignore all others. */
11276         tp->coal.rx_coalesce_usecs = ec->rx_coalesce_usecs;
11277         tp->coal.tx_coalesce_usecs = ec->tx_coalesce_usecs;
11278         tp->coal.rx_max_coalesced_frames = ec->rx_max_coalesced_frames;
11279         tp->coal.tx_max_coalesced_frames = ec->tx_max_coalesced_frames;
11280         tp->coal.rx_coalesce_usecs_irq = ec->rx_coalesce_usecs_irq;
11281         tp->coal.tx_coalesce_usecs_irq = ec->tx_coalesce_usecs_irq;
11282         tp->coal.rx_max_coalesced_frames_irq = ec->rx_max_coalesced_frames_irq;
11283         tp->coal.tx_max_coalesced_frames_irq = ec->tx_max_coalesced_frames_irq;
11284         tp->coal.stats_block_coalesce_usecs = ec->stats_block_coalesce_usecs;
11285
11286         if (netif_running(dev)) {
11287                 tg3_full_lock(tp, 0);
11288                 __tg3_set_coalesce(tp, &tp->coal);
11289                 tg3_full_unlock(tp);
11290         }
11291         return 0;
11292 }
11293
11294 static const struct ethtool_ops tg3_ethtool_ops = {
11295         .get_settings           = tg3_get_settings,
11296         .set_settings           = tg3_set_settings,
11297         .get_drvinfo            = tg3_get_drvinfo,
11298         .get_regs_len           = tg3_get_regs_len,
11299         .get_regs               = tg3_get_regs,
11300         .get_wol                = tg3_get_wol,
11301         .set_wol                = tg3_set_wol,
11302         .get_msglevel           = tg3_get_msglevel,
11303         .set_msglevel           = tg3_set_msglevel,
11304         .nway_reset             = tg3_nway_reset,
11305         .get_link               = ethtool_op_get_link,
11306         .get_eeprom_len         = tg3_get_eeprom_len,
11307         .get_eeprom             = tg3_get_eeprom,
11308         .set_eeprom             = tg3_set_eeprom,
11309         .get_ringparam          = tg3_get_ringparam,
11310         .set_ringparam          = tg3_set_ringparam,
11311         .get_pauseparam         = tg3_get_pauseparam,
11312         .set_pauseparam         = tg3_set_pauseparam,
11313         .get_rx_csum            = tg3_get_rx_csum,
11314         .set_rx_csum            = tg3_set_rx_csum,
11315         .set_tx_csum            = tg3_set_tx_csum,
11316         .set_sg                 = ethtool_op_set_sg,
11317         .set_tso                = tg3_set_tso,
11318         .self_test              = tg3_self_test,
11319         .get_strings            = tg3_get_strings,
11320         .phys_id                = tg3_phys_id,
11321         .get_ethtool_stats      = tg3_get_ethtool_stats,
11322         .get_coalesce           = tg3_get_coalesce,
11323         .set_coalesce           = tg3_set_coalesce,
11324         .get_sset_count         = tg3_get_sset_count,
11325 };
11326
11327 static void __devinit tg3_get_eeprom_size(struct tg3 *tp)
11328 {
11329         u32 cursize, val, magic;
11330
11331         tp->nvram_size = EEPROM_CHIP_SIZE;
11332
11333         if (tg3_nvram_read(tp, 0, &magic) != 0)
11334                 return;
11335
11336         if ((magic != TG3_EEPROM_MAGIC) &&
11337             ((magic & TG3_EEPROM_MAGIC_FW_MSK) != TG3_EEPROM_MAGIC_FW) &&
11338             ((magic & TG3_EEPROM_MAGIC_HW_MSK) != TG3_EEPROM_MAGIC_HW))
11339                 return;
11340
11341         /*
11342          * Size the chip by reading offsets at increasing powers of two.
11343          * When we encounter our validation signature, we know the addressing
11344          * has wrapped around, and thus have our chip size.
11345          */
11346         cursize = 0x10;
11347
11348         while (cursize < tp->nvram_size) {
11349                 if (tg3_nvram_read(tp, cursize, &val) != 0)
11350                         return;
11351
11352                 if (val == magic)
11353                         break;
11354
11355                 cursize <<= 1;
11356         }
11357
11358         tp->nvram_size = cursize;
11359 }
11360
11361 static void __devinit tg3_get_nvram_size(struct tg3 *tp)
11362 {
11363         u32 val;
11364
11365         if ((tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) ||
11366             tg3_nvram_read(tp, 0, &val) != 0)
11367                 return;
11368
11369         /* Selfboot format */
11370         if (val != TG3_EEPROM_MAGIC) {
11371                 tg3_get_eeprom_size(tp);
11372                 return;
11373         }
11374
11375         if (tg3_nvram_read(tp, 0xf0, &val) == 0) {
11376                 if (val != 0) {
11377                         /* This is confusing.  We want to operate on the
11378                          * 16-bit value at offset 0xf2.  The tg3_nvram_read()
11379                          * call will read from NVRAM and byteswap the data
11380                          * according to the byteswapping settings for all
11381                          * other register accesses.  This ensures the data we
11382                          * want will always reside in the lower 16-bits.
11383                          * However, the data in NVRAM is in LE format, which
11384                          * means the data from the NVRAM read will always be
11385                          * opposite the endianness of the CPU.  The 16-bit
11386                          * byteswap then brings the data to CPU endianness.
11387                          */
11388                         tp->nvram_size = swab16((u16)(val & 0x0000ffff)) * 1024;
11389                         return;
11390                 }
11391         }
11392         tp->nvram_size = TG3_NVRAM_SIZE_512KB;
11393 }
11394
11395 static void __devinit tg3_get_nvram_info(struct tg3 *tp)
11396 {
11397         u32 nvcfg1;
11398
11399         nvcfg1 = tr32(NVRAM_CFG1);
11400         if (nvcfg1 & NVRAM_CFG1_FLASHIF_ENAB) {
11401                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11402         } else {
11403                 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
11404                 tw32(NVRAM_CFG1, nvcfg1);
11405         }
11406
11407         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750) ||
11408             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
11409                 switch (nvcfg1 & NVRAM_CFG1_VENDOR_MASK) {
11410                 case FLASH_VENDOR_ATMEL_FLASH_BUFFERED:
11411                         tp->nvram_jedecnum = JEDEC_ATMEL;
11412                         tp->nvram_pagesize = ATMEL_AT45DB0X1B_PAGE_SIZE;
11413                         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11414                         break;
11415                 case FLASH_VENDOR_ATMEL_FLASH_UNBUFFERED:
11416                         tp->nvram_jedecnum = JEDEC_ATMEL;
11417                         tp->nvram_pagesize = ATMEL_AT25F512_PAGE_SIZE;
11418                         break;
11419                 case FLASH_VENDOR_ATMEL_EEPROM:
11420                         tp->nvram_jedecnum = JEDEC_ATMEL;
11421                         tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
11422                         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11423                         break;
11424                 case FLASH_VENDOR_ST:
11425                         tp->nvram_jedecnum = JEDEC_ST;
11426                         tp->nvram_pagesize = ST_M45PEX0_PAGE_SIZE;
11427                         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11428                         break;
11429                 case FLASH_VENDOR_SAIFUN:
11430                         tp->nvram_jedecnum = JEDEC_SAIFUN;
11431                         tp->nvram_pagesize = SAIFUN_SA25F0XX_PAGE_SIZE;
11432                         break;
11433                 case FLASH_VENDOR_SST_SMALL:
11434                 case FLASH_VENDOR_SST_LARGE:
11435                         tp->nvram_jedecnum = JEDEC_SST;
11436                         tp->nvram_pagesize = SST_25VF0X0_PAGE_SIZE;
11437                         break;
11438                 }
11439         } else {
11440                 tp->nvram_jedecnum = JEDEC_ATMEL;
11441                 tp->nvram_pagesize = ATMEL_AT45DB0X1B_PAGE_SIZE;
11442                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11443         }
11444 }
11445
11446 static void __devinit tg3_nvram_get_pagesize(struct tg3 *tp, u32 nvmcfg1)
11447 {
11448         switch (nvmcfg1 & NVRAM_CFG1_5752PAGE_SIZE_MASK) {
11449         case FLASH_5752PAGE_SIZE_256:
11450                 tp->nvram_pagesize = 256;
11451                 break;
11452         case FLASH_5752PAGE_SIZE_512:
11453                 tp->nvram_pagesize = 512;
11454                 break;
11455         case FLASH_5752PAGE_SIZE_1K:
11456                 tp->nvram_pagesize = 1024;
11457                 break;
11458         case FLASH_5752PAGE_SIZE_2K:
11459                 tp->nvram_pagesize = 2048;
11460                 break;
11461         case FLASH_5752PAGE_SIZE_4K:
11462                 tp->nvram_pagesize = 4096;
11463                 break;
11464         case FLASH_5752PAGE_SIZE_264:
11465                 tp->nvram_pagesize = 264;
11466                 break;
11467         case FLASH_5752PAGE_SIZE_528:
11468                 tp->nvram_pagesize = 528;
11469                 break;
11470         }
11471 }
11472
11473 static void __devinit tg3_get_5752_nvram_info(struct tg3 *tp)
11474 {
11475         u32 nvcfg1;
11476
11477         nvcfg1 = tr32(NVRAM_CFG1);
11478
11479         /* NVRAM protection for TPM */
11480         if (nvcfg1 & (1 << 27))
11481                 tp->tg3_flags3 |= TG3_FLG3_PROTECTED_NVRAM;
11482
11483         switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11484         case FLASH_5752VENDOR_ATMEL_EEPROM_64KHZ:
11485         case FLASH_5752VENDOR_ATMEL_EEPROM_376KHZ:
11486                 tp->nvram_jedecnum = JEDEC_ATMEL;
11487                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11488                 break;
11489         case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
11490                 tp->nvram_jedecnum = JEDEC_ATMEL;
11491                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11492                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11493                 break;
11494         case FLASH_5752VENDOR_ST_M45PE10:
11495         case FLASH_5752VENDOR_ST_M45PE20:
11496         case FLASH_5752VENDOR_ST_M45PE40:
11497                 tp->nvram_jedecnum = JEDEC_ST;
11498                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11499                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11500                 break;
11501         }
11502
11503         if (tp->tg3_flags2 & TG3_FLG2_FLASH) {
11504                 tg3_nvram_get_pagesize(tp, nvcfg1);
11505         } else {
11506                 /* For eeprom, set pagesize to maximum eeprom size */
11507                 tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
11508
11509                 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
11510                 tw32(NVRAM_CFG1, nvcfg1);
11511         }
11512 }
11513
11514 static void __devinit tg3_get_5755_nvram_info(struct tg3 *tp)
11515 {
11516         u32 nvcfg1, protect = 0;
11517
11518         nvcfg1 = tr32(NVRAM_CFG1);
11519
11520         /* NVRAM protection for TPM */
11521         if (nvcfg1 & (1 << 27)) {
11522                 tp->tg3_flags3 |= TG3_FLG3_PROTECTED_NVRAM;
11523                 protect = 1;
11524         }
11525
11526         nvcfg1 &= NVRAM_CFG1_5752VENDOR_MASK;
11527         switch (nvcfg1) {
11528         case FLASH_5755VENDOR_ATMEL_FLASH_1:
11529         case FLASH_5755VENDOR_ATMEL_FLASH_2:
11530         case FLASH_5755VENDOR_ATMEL_FLASH_3:
11531         case FLASH_5755VENDOR_ATMEL_FLASH_5:
11532                 tp->nvram_jedecnum = JEDEC_ATMEL;
11533                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11534                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11535                 tp->nvram_pagesize = 264;
11536                 if (nvcfg1 == FLASH_5755VENDOR_ATMEL_FLASH_1 ||
11537                     nvcfg1 == FLASH_5755VENDOR_ATMEL_FLASH_5)
11538                         tp->nvram_size = (protect ? 0x3e200 :
11539                                           TG3_NVRAM_SIZE_512KB);
11540                 else if (nvcfg1 == FLASH_5755VENDOR_ATMEL_FLASH_2)
11541                         tp->nvram_size = (protect ? 0x1f200 :
11542                                           TG3_NVRAM_SIZE_256KB);
11543                 else
11544                         tp->nvram_size = (protect ? 0x1f200 :
11545                                           TG3_NVRAM_SIZE_128KB);
11546                 break;
11547         case FLASH_5752VENDOR_ST_M45PE10:
11548         case FLASH_5752VENDOR_ST_M45PE20:
11549         case FLASH_5752VENDOR_ST_M45PE40:
11550                 tp->nvram_jedecnum = JEDEC_ST;
11551                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11552                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11553                 tp->nvram_pagesize = 256;
11554                 if (nvcfg1 == FLASH_5752VENDOR_ST_M45PE10)
11555                         tp->nvram_size = (protect ?
11556                                           TG3_NVRAM_SIZE_64KB :
11557                                           TG3_NVRAM_SIZE_128KB);
11558                 else if (nvcfg1 == FLASH_5752VENDOR_ST_M45PE20)
11559                         tp->nvram_size = (protect ?
11560                                           TG3_NVRAM_SIZE_64KB :
11561                                           TG3_NVRAM_SIZE_256KB);
11562                 else
11563                         tp->nvram_size = (protect ?
11564                                           TG3_NVRAM_SIZE_128KB :
11565                                           TG3_NVRAM_SIZE_512KB);
11566                 break;
11567         }
11568 }
11569
11570 static void __devinit tg3_get_5787_nvram_info(struct tg3 *tp)
11571 {
11572         u32 nvcfg1;
11573
11574         nvcfg1 = tr32(NVRAM_CFG1);
11575
11576         switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11577         case FLASH_5787VENDOR_ATMEL_EEPROM_64KHZ:
11578         case FLASH_5787VENDOR_ATMEL_EEPROM_376KHZ:
11579         case FLASH_5787VENDOR_MICRO_EEPROM_64KHZ:
11580         case FLASH_5787VENDOR_MICRO_EEPROM_376KHZ:
11581                 tp->nvram_jedecnum = JEDEC_ATMEL;
11582                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11583                 tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
11584
11585                 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
11586                 tw32(NVRAM_CFG1, nvcfg1);
11587                 break;
11588         case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
11589         case FLASH_5755VENDOR_ATMEL_FLASH_1:
11590         case FLASH_5755VENDOR_ATMEL_FLASH_2:
11591         case FLASH_5755VENDOR_ATMEL_FLASH_3:
11592                 tp->nvram_jedecnum = JEDEC_ATMEL;
11593                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11594                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11595                 tp->nvram_pagesize = 264;
11596                 break;
11597         case FLASH_5752VENDOR_ST_M45PE10:
11598         case FLASH_5752VENDOR_ST_M45PE20:
11599         case FLASH_5752VENDOR_ST_M45PE40:
11600                 tp->nvram_jedecnum = JEDEC_ST;
11601                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11602                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11603                 tp->nvram_pagesize = 256;
11604                 break;
11605         }
11606 }
11607
11608 static void __devinit tg3_get_5761_nvram_info(struct tg3 *tp)
11609 {
11610         u32 nvcfg1, protect = 0;
11611
11612         nvcfg1 = tr32(NVRAM_CFG1);
11613
11614         /* NVRAM protection for TPM */
11615         if (nvcfg1 & (1 << 27)) {
11616                 tp->tg3_flags3 |= TG3_FLG3_PROTECTED_NVRAM;
11617                 protect = 1;
11618         }
11619
11620         nvcfg1 &= NVRAM_CFG1_5752VENDOR_MASK;
11621         switch (nvcfg1) {
11622         case FLASH_5761VENDOR_ATMEL_ADB021D:
11623         case FLASH_5761VENDOR_ATMEL_ADB041D:
11624         case FLASH_5761VENDOR_ATMEL_ADB081D:
11625         case FLASH_5761VENDOR_ATMEL_ADB161D:
11626         case FLASH_5761VENDOR_ATMEL_MDB021D:
11627         case FLASH_5761VENDOR_ATMEL_MDB041D:
11628         case FLASH_5761VENDOR_ATMEL_MDB081D:
11629         case FLASH_5761VENDOR_ATMEL_MDB161D:
11630                 tp->nvram_jedecnum = JEDEC_ATMEL;
11631                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11632                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11633                 tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM_ADDR_TRANS;
11634                 tp->nvram_pagesize = 256;
11635                 break;
11636         case FLASH_5761VENDOR_ST_A_M45PE20:
11637         case FLASH_5761VENDOR_ST_A_M45PE40:
11638         case FLASH_5761VENDOR_ST_A_M45PE80:
11639         case FLASH_5761VENDOR_ST_A_M45PE16:
11640         case FLASH_5761VENDOR_ST_M_M45PE20:
11641         case FLASH_5761VENDOR_ST_M_M45PE40:
11642         case FLASH_5761VENDOR_ST_M_M45PE80:
11643         case FLASH_5761VENDOR_ST_M_M45PE16:
11644                 tp->nvram_jedecnum = JEDEC_ST;
11645                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11646                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11647                 tp->nvram_pagesize = 256;
11648                 break;
11649         }
11650
11651         if (protect) {
11652                 tp->nvram_size = tr32(NVRAM_ADDR_LOCKOUT);
11653         } else {
11654                 switch (nvcfg1) {
11655                 case FLASH_5761VENDOR_ATMEL_ADB161D:
11656                 case FLASH_5761VENDOR_ATMEL_MDB161D:
11657                 case FLASH_5761VENDOR_ST_A_M45PE16:
11658                 case FLASH_5761VENDOR_ST_M_M45PE16:
11659                         tp->nvram_size = TG3_NVRAM_SIZE_2MB;
11660                         break;
11661                 case FLASH_5761VENDOR_ATMEL_ADB081D:
11662                 case FLASH_5761VENDOR_ATMEL_MDB081D:
11663                 case FLASH_5761VENDOR_ST_A_M45PE80:
11664                 case FLASH_5761VENDOR_ST_M_M45PE80:
11665                         tp->nvram_size = TG3_NVRAM_SIZE_1MB;
11666                         break;
11667                 case FLASH_5761VENDOR_ATMEL_ADB041D:
11668                 case FLASH_5761VENDOR_ATMEL_MDB041D:
11669                 case FLASH_5761VENDOR_ST_A_M45PE40:
11670                 case FLASH_5761VENDOR_ST_M_M45PE40:
11671                         tp->nvram_size = TG3_NVRAM_SIZE_512KB;
11672                         break;
11673                 case FLASH_5761VENDOR_ATMEL_ADB021D:
11674                 case FLASH_5761VENDOR_ATMEL_MDB021D:
11675                 case FLASH_5761VENDOR_ST_A_M45PE20:
11676                 case FLASH_5761VENDOR_ST_M_M45PE20:
11677                         tp->nvram_size = TG3_NVRAM_SIZE_256KB;
11678                         break;
11679                 }
11680         }
11681 }
11682
11683 static void __devinit tg3_get_5906_nvram_info(struct tg3 *tp)
11684 {
11685         tp->nvram_jedecnum = JEDEC_ATMEL;
11686         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11687         tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
11688 }
11689
11690 static void __devinit tg3_get_57780_nvram_info(struct tg3 *tp)
11691 {
11692         u32 nvcfg1;
11693
11694         nvcfg1 = tr32(NVRAM_CFG1);
11695
11696         switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11697         case FLASH_5787VENDOR_ATMEL_EEPROM_376KHZ:
11698         case FLASH_5787VENDOR_MICRO_EEPROM_376KHZ:
11699                 tp->nvram_jedecnum = JEDEC_ATMEL;
11700                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11701                 tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
11702
11703                 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
11704                 tw32(NVRAM_CFG1, nvcfg1);
11705                 return;
11706         case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
11707         case FLASH_57780VENDOR_ATMEL_AT45DB011D:
11708         case FLASH_57780VENDOR_ATMEL_AT45DB011B:
11709         case FLASH_57780VENDOR_ATMEL_AT45DB021D:
11710         case FLASH_57780VENDOR_ATMEL_AT45DB021B:
11711         case FLASH_57780VENDOR_ATMEL_AT45DB041D:
11712         case FLASH_57780VENDOR_ATMEL_AT45DB041B:
11713                 tp->nvram_jedecnum = JEDEC_ATMEL;
11714                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11715                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11716
11717                 switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11718                 case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
11719                 case FLASH_57780VENDOR_ATMEL_AT45DB011D:
11720                 case FLASH_57780VENDOR_ATMEL_AT45DB011B:
11721                         tp->nvram_size = TG3_NVRAM_SIZE_128KB;
11722                         break;
11723                 case FLASH_57780VENDOR_ATMEL_AT45DB021D:
11724                 case FLASH_57780VENDOR_ATMEL_AT45DB021B:
11725                         tp->nvram_size = TG3_NVRAM_SIZE_256KB;
11726                         break;
11727                 case FLASH_57780VENDOR_ATMEL_AT45DB041D:
11728                 case FLASH_57780VENDOR_ATMEL_AT45DB041B:
11729                         tp->nvram_size = TG3_NVRAM_SIZE_512KB;
11730                         break;
11731                 }
11732                 break;
11733         case FLASH_5752VENDOR_ST_M45PE10:
11734         case FLASH_5752VENDOR_ST_M45PE20:
11735         case FLASH_5752VENDOR_ST_M45PE40:
11736                 tp->nvram_jedecnum = JEDEC_ST;
11737                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11738                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11739
11740                 switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11741                 case FLASH_5752VENDOR_ST_M45PE10:
11742                         tp->nvram_size = TG3_NVRAM_SIZE_128KB;
11743                         break;
11744                 case FLASH_5752VENDOR_ST_M45PE20:
11745                         tp->nvram_size = TG3_NVRAM_SIZE_256KB;
11746                         break;
11747                 case FLASH_5752VENDOR_ST_M45PE40:
11748                         tp->nvram_size = TG3_NVRAM_SIZE_512KB;
11749                         break;
11750                 }
11751                 break;
11752         default:
11753                 tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM;
11754                 return;
11755         }
11756
11757         tg3_nvram_get_pagesize(tp, nvcfg1);
11758         if (tp->nvram_pagesize != 264 && tp->nvram_pagesize != 528)
11759                 tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM_ADDR_TRANS;
11760 }
11761
11762
11763 static void __devinit tg3_get_5717_nvram_info(struct tg3 *tp)
11764 {
11765         u32 nvcfg1;
11766
11767         nvcfg1 = tr32(NVRAM_CFG1);
11768
11769         switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11770         case FLASH_5717VENDOR_ATMEL_EEPROM:
11771         case FLASH_5717VENDOR_MICRO_EEPROM:
11772                 tp->nvram_jedecnum = JEDEC_ATMEL;
11773                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11774                 tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
11775
11776                 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
11777                 tw32(NVRAM_CFG1, nvcfg1);
11778                 return;
11779         case FLASH_5717VENDOR_ATMEL_MDB011D:
11780         case FLASH_5717VENDOR_ATMEL_ADB011B:
11781         case FLASH_5717VENDOR_ATMEL_ADB011D:
11782         case FLASH_5717VENDOR_ATMEL_MDB021D:
11783         case FLASH_5717VENDOR_ATMEL_ADB021B:
11784         case FLASH_5717VENDOR_ATMEL_ADB021D:
11785         case FLASH_5717VENDOR_ATMEL_45USPT:
11786                 tp->nvram_jedecnum = JEDEC_ATMEL;
11787                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11788                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11789
11790                 switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11791                 case FLASH_5717VENDOR_ATMEL_MDB021D:
11792                 case FLASH_5717VENDOR_ATMEL_ADB021B:
11793                 case FLASH_5717VENDOR_ATMEL_ADB021D:
11794                         tp->nvram_size = TG3_NVRAM_SIZE_256KB;
11795                         break;
11796                 default:
11797                         tp->nvram_size = TG3_NVRAM_SIZE_128KB;
11798                         break;
11799                 }
11800                 break;
11801         case FLASH_5717VENDOR_ST_M_M25PE10:
11802         case FLASH_5717VENDOR_ST_A_M25PE10:
11803         case FLASH_5717VENDOR_ST_M_M45PE10:
11804         case FLASH_5717VENDOR_ST_A_M45PE10:
11805         case FLASH_5717VENDOR_ST_M_M25PE20:
11806         case FLASH_5717VENDOR_ST_A_M25PE20:
11807         case FLASH_5717VENDOR_ST_M_M45PE20:
11808         case FLASH_5717VENDOR_ST_A_M45PE20:
11809         case FLASH_5717VENDOR_ST_25USPT:
11810         case FLASH_5717VENDOR_ST_45USPT:
11811                 tp->nvram_jedecnum = JEDEC_ST;
11812                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11813                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11814
11815                 switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11816                 case FLASH_5717VENDOR_ST_M_M25PE20:
11817                 case FLASH_5717VENDOR_ST_A_M25PE20:
11818                 case FLASH_5717VENDOR_ST_M_M45PE20:
11819                 case FLASH_5717VENDOR_ST_A_M45PE20:
11820                         tp->nvram_size = TG3_NVRAM_SIZE_256KB;
11821                         break;
11822                 default:
11823                         tp->nvram_size = TG3_NVRAM_SIZE_128KB;
11824                         break;
11825                 }
11826                 break;
11827         default:
11828                 tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM;
11829                 return;
11830         }
11831
11832         tg3_nvram_get_pagesize(tp, nvcfg1);
11833         if (tp->nvram_pagesize != 264 && tp->nvram_pagesize != 528)
11834                 tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM_ADDR_TRANS;
11835 }
11836
11837 /* Chips other than 5700/5701 use the NVRAM for fetching info. */
11838 static void __devinit tg3_nvram_init(struct tg3 *tp)
11839 {
11840         tw32_f(GRC_EEPROM_ADDR,
11841              (EEPROM_ADDR_FSM_RESET |
11842               (EEPROM_DEFAULT_CLOCK_PERIOD <<
11843                EEPROM_ADDR_CLKPERD_SHIFT)));
11844
11845         msleep(1);
11846
11847         /* Enable seeprom accesses. */
11848         tw32_f(GRC_LOCAL_CTRL,
11849              tr32(GRC_LOCAL_CTRL) | GRC_LCLCTRL_AUTO_SEEPROM);
11850         udelay(100);
11851
11852         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
11853             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701) {
11854                 tp->tg3_flags |= TG3_FLAG_NVRAM;
11855
11856                 if (tg3_nvram_lock(tp)) {
11857                         netdev_warn(tp->dev,
11858                                     "Cannot get nvram lock, %s failed\n",
11859                                     __func__);
11860                         return;
11861                 }
11862                 tg3_enable_nvram_access(tp);
11863
11864                 tp->nvram_size = 0;
11865
11866                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752)
11867                         tg3_get_5752_nvram_info(tp);
11868                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755)
11869                         tg3_get_5755_nvram_info(tp);
11870                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5787 ||
11871                          GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
11872                          GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
11873                         tg3_get_5787_nvram_info(tp);
11874                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761)
11875                         tg3_get_5761_nvram_info(tp);
11876                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
11877                         tg3_get_5906_nvram_info(tp);
11878                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 ||
11879                          GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
11880                         tg3_get_57780_nvram_info(tp);
11881                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
11882                          GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719)
11883                         tg3_get_5717_nvram_info(tp);
11884                 else
11885                         tg3_get_nvram_info(tp);
11886
11887                 if (tp->nvram_size == 0)
11888                         tg3_get_nvram_size(tp);
11889
11890                 tg3_disable_nvram_access(tp);
11891                 tg3_nvram_unlock(tp);
11892
11893         } else {
11894                 tp->tg3_flags &= ~(TG3_FLAG_NVRAM | TG3_FLAG_NVRAM_BUFFERED);
11895
11896                 tg3_get_eeprom_size(tp);
11897         }
11898 }
11899
11900 static int tg3_nvram_write_block_using_eeprom(struct tg3 *tp,
11901                                     u32 offset, u32 len, u8 *buf)
11902 {
11903         int i, j, rc = 0;
11904         u32 val;
11905
11906         for (i = 0; i < len; i += 4) {
11907                 u32 addr;
11908                 __be32 data;
11909
11910                 addr = offset + i;
11911
11912                 memcpy(&data, buf + i, 4);
11913
11914                 /*
11915                  * The SEEPROM interface expects the data to always be opposite
11916                  * the native endian format.  We accomplish this by reversing
11917                  * all the operations that would have been performed on the
11918                  * data from a call to tg3_nvram_read_be32().
11919                  */
11920                 tw32(GRC_EEPROM_DATA, swab32(be32_to_cpu(data)));
11921
11922                 val = tr32(GRC_EEPROM_ADDR);
11923                 tw32(GRC_EEPROM_ADDR, val | EEPROM_ADDR_COMPLETE);
11924
11925                 val &= ~(EEPROM_ADDR_ADDR_MASK | EEPROM_ADDR_DEVID_MASK |
11926                         EEPROM_ADDR_READ);
11927                 tw32(GRC_EEPROM_ADDR, val |
11928                         (0 << EEPROM_ADDR_DEVID_SHIFT) |
11929                         (addr & EEPROM_ADDR_ADDR_MASK) |
11930                         EEPROM_ADDR_START |
11931                         EEPROM_ADDR_WRITE);
11932
11933                 for (j = 0; j < 1000; j++) {
11934                         val = tr32(GRC_EEPROM_ADDR);
11935
11936                         if (val & EEPROM_ADDR_COMPLETE)
11937                                 break;
11938                         msleep(1);
11939                 }
11940                 if (!(val & EEPROM_ADDR_COMPLETE)) {
11941                         rc = -EBUSY;
11942                         break;
11943                 }
11944         }
11945
11946         return rc;
11947 }
11948
11949 /* offset and length are dword aligned */
11950 static int tg3_nvram_write_block_unbuffered(struct tg3 *tp, u32 offset, u32 len,
11951                 u8 *buf)
11952 {
11953         int ret = 0;
11954         u32 pagesize = tp->nvram_pagesize;
11955         u32 pagemask = pagesize - 1;
11956         u32 nvram_cmd;
11957         u8 *tmp;
11958
11959         tmp = kmalloc(pagesize, GFP_KERNEL);
11960         if (tmp == NULL)
11961                 return -ENOMEM;
11962
11963         while (len) {
11964                 int j;
11965                 u32 phy_addr, page_off, size;
11966
11967                 phy_addr = offset & ~pagemask;
11968
11969                 for (j = 0; j < pagesize; j += 4) {
11970                         ret = tg3_nvram_read_be32(tp, phy_addr + j,
11971                                                   (__be32 *) (tmp + j));
11972                         if (ret)
11973                                 break;
11974                 }
11975                 if (ret)
11976                         break;
11977
11978                 page_off = offset & pagemask;
11979                 size = pagesize;
11980                 if (len < size)
11981                         size = len;
11982
11983                 len -= size;
11984
11985                 memcpy(tmp + page_off, buf, size);
11986
11987                 offset = offset + (pagesize - page_off);
11988
11989                 tg3_enable_nvram_access(tp);
11990
11991                 /*
11992                  * Before we can erase the flash page, we need
11993                  * to issue a special "write enable" command.
11994                  */
11995                 nvram_cmd = NVRAM_CMD_WREN | NVRAM_CMD_GO | NVRAM_CMD_DONE;
11996
11997                 if (tg3_nvram_exec_cmd(tp, nvram_cmd))
11998                         break;
11999
12000                 /* Erase the target page */
12001                 tw32(NVRAM_ADDR, phy_addr);
12002
12003                 nvram_cmd = NVRAM_CMD_GO | NVRAM_CMD_DONE | NVRAM_CMD_WR |
12004                         NVRAM_CMD_FIRST | NVRAM_CMD_LAST | NVRAM_CMD_ERASE;
12005
12006                 if (tg3_nvram_exec_cmd(tp, nvram_cmd))
12007                         break;
12008
12009                 /* Issue another write enable to start the write. */
12010                 nvram_cmd = NVRAM_CMD_WREN | NVRAM_CMD_GO | NVRAM_CMD_DONE;
12011
12012                 if (tg3_nvram_exec_cmd(tp, nvram_cmd))
12013                         break;
12014
12015                 for (j = 0; j < pagesize; j += 4) {
12016                         __be32 data;
12017
12018                         data = *((__be32 *) (tmp + j));
12019
12020                         tw32(NVRAM_WRDATA, be32_to_cpu(data));
12021
12022                         tw32(NVRAM_ADDR, phy_addr + j);
12023
12024                         nvram_cmd = NVRAM_CMD_GO | NVRAM_CMD_DONE |
12025                                 NVRAM_CMD_WR;
12026
12027                         if (j == 0)
12028                                 nvram_cmd |= NVRAM_CMD_FIRST;
12029                         else if (j == (pagesize - 4))
12030                                 nvram_cmd |= NVRAM_CMD_LAST;
12031
12032                         if ((ret = tg3_nvram_exec_cmd(tp, nvram_cmd)))
12033                                 break;
12034                 }
12035                 if (ret)
12036                         break;
12037         }
12038
12039         nvram_cmd = NVRAM_CMD_WRDI | NVRAM_CMD_GO | NVRAM_CMD_DONE;
12040         tg3_nvram_exec_cmd(tp, nvram_cmd);
12041
12042         kfree(tmp);
12043
12044         return ret;
12045 }
12046
12047 /* offset and length are dword aligned */
12048 static int tg3_nvram_write_block_buffered(struct tg3 *tp, u32 offset, u32 len,
12049                 u8 *buf)
12050 {
12051         int i, ret = 0;
12052
12053         for (i = 0; i < len; i += 4, offset += 4) {
12054                 u32 page_off, phy_addr, nvram_cmd;
12055                 __be32 data;
12056
12057                 memcpy(&data, buf + i, 4);
12058                 tw32(NVRAM_WRDATA, be32_to_cpu(data));
12059
12060                 page_off = offset % tp->nvram_pagesize;
12061
12062                 phy_addr = tg3_nvram_phys_addr(tp, offset);
12063
12064                 tw32(NVRAM_ADDR, phy_addr);
12065
12066                 nvram_cmd = NVRAM_CMD_GO | NVRAM_CMD_DONE | NVRAM_CMD_WR;
12067
12068                 if (page_off == 0 || i == 0)
12069                         nvram_cmd |= NVRAM_CMD_FIRST;
12070                 if (page_off == (tp->nvram_pagesize - 4))
12071                         nvram_cmd |= NVRAM_CMD_LAST;
12072
12073                 if (i == (len - 4))
12074                         nvram_cmd |= NVRAM_CMD_LAST;
12075
12076                 if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5752 &&
12077                     !(tp->tg3_flags3 & TG3_FLG3_5755_PLUS) &&
12078                     (tp->nvram_jedecnum == JEDEC_ST) &&
12079                     (nvram_cmd & NVRAM_CMD_FIRST)) {
12080
12081                         if ((ret = tg3_nvram_exec_cmd(tp,
12082                                 NVRAM_CMD_WREN | NVRAM_CMD_GO |
12083                                 NVRAM_CMD_DONE)))
12084
12085                                 break;
12086                 }
12087                 if (!(tp->tg3_flags2 & TG3_FLG2_FLASH)) {
12088                         /* We always do complete word writes to eeprom. */
12089                         nvram_cmd |= (NVRAM_CMD_FIRST | NVRAM_CMD_LAST);
12090                 }
12091
12092                 if ((ret = tg3_nvram_exec_cmd(tp, nvram_cmd)))
12093                         break;
12094         }
12095         return ret;
12096 }
12097
12098 /* offset and length are dword aligned */
12099 static int tg3_nvram_write_block(struct tg3 *tp, u32 offset, u32 len, u8 *buf)
12100 {
12101         int ret;
12102
12103         if (tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT) {
12104                 tw32_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl &
12105                        ~GRC_LCLCTRL_GPIO_OUTPUT1);
12106                 udelay(40);
12107         }
12108
12109         if (!(tp->tg3_flags & TG3_FLAG_NVRAM)) {
12110                 ret = tg3_nvram_write_block_using_eeprom(tp, offset, len, buf);
12111         } else {
12112                 u32 grc_mode;
12113
12114                 ret = tg3_nvram_lock(tp);
12115                 if (ret)
12116                         return ret;
12117
12118                 tg3_enable_nvram_access(tp);
12119                 if ((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
12120                     !(tp->tg3_flags3 & TG3_FLG3_PROTECTED_NVRAM))
12121                         tw32(NVRAM_WRITE1, 0x406);
12122
12123                 grc_mode = tr32(GRC_MODE);
12124                 tw32(GRC_MODE, grc_mode | GRC_MODE_NVRAM_WR_ENABLE);
12125
12126                 if ((tp->tg3_flags & TG3_FLAG_NVRAM_BUFFERED) ||
12127                         !(tp->tg3_flags2 & TG3_FLG2_FLASH)) {
12128
12129                         ret = tg3_nvram_write_block_buffered(tp, offset, len,
12130                                 buf);
12131                 } else {
12132                         ret = tg3_nvram_write_block_unbuffered(tp, offset, len,
12133                                 buf);
12134                 }
12135
12136                 grc_mode = tr32(GRC_MODE);
12137                 tw32(GRC_MODE, grc_mode & ~GRC_MODE_NVRAM_WR_ENABLE);
12138
12139                 tg3_disable_nvram_access(tp);
12140                 tg3_nvram_unlock(tp);
12141         }
12142
12143         if (tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT) {
12144                 tw32_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl);
12145                 udelay(40);
12146         }
12147
12148         return ret;
12149 }
12150
12151 struct subsys_tbl_ent {
12152         u16 subsys_vendor, subsys_devid;
12153         u32 phy_id;
12154 };
12155
12156 static struct subsys_tbl_ent subsys_id_to_phy_id[] __devinitdata = {
12157         /* Broadcom boards. */
12158         { TG3PCI_SUBVENDOR_ID_BROADCOM,
12159           TG3PCI_SUBDEVICE_ID_BROADCOM_95700A6, TG3_PHY_ID_BCM5401 },
12160         { TG3PCI_SUBVENDOR_ID_BROADCOM,
12161           TG3PCI_SUBDEVICE_ID_BROADCOM_95701A5, TG3_PHY_ID_BCM5701 },
12162         { TG3PCI_SUBVENDOR_ID_BROADCOM,
12163           TG3PCI_SUBDEVICE_ID_BROADCOM_95700T6, TG3_PHY_ID_BCM8002 },
12164         { TG3PCI_SUBVENDOR_ID_BROADCOM,
12165           TG3PCI_SUBDEVICE_ID_BROADCOM_95700A9, 0 },
12166         { TG3PCI_SUBVENDOR_ID_BROADCOM,
12167           TG3PCI_SUBDEVICE_ID_BROADCOM_95701T1, TG3_PHY_ID_BCM5701 },
12168         { TG3PCI_SUBVENDOR_ID_BROADCOM,
12169           TG3PCI_SUBDEVICE_ID_BROADCOM_95701T8, TG3_PHY_ID_BCM5701 },
12170         { TG3PCI_SUBVENDOR_ID_BROADCOM,
12171           TG3PCI_SUBDEVICE_ID_BROADCOM_95701A7, 0 },
12172         { TG3PCI_SUBVENDOR_ID_BROADCOM,
12173           TG3PCI_SUBDEVICE_ID_BROADCOM_95701A10, TG3_PHY_ID_BCM5701 },
12174         { TG3PCI_SUBVENDOR_ID_BROADCOM,
12175           TG3PCI_SUBDEVICE_ID_BROADCOM_95701A12, TG3_PHY_ID_BCM5701 },
12176         { TG3PCI_SUBVENDOR_ID_BROADCOM,
12177           TG3PCI_SUBDEVICE_ID_BROADCOM_95703AX1, TG3_PHY_ID_BCM5703 },
12178         { TG3PCI_SUBVENDOR_ID_BROADCOM,
12179           TG3PCI_SUBDEVICE_ID_BROADCOM_95703AX2, TG3_PHY_ID_BCM5703 },
12180
12181         /* 3com boards. */
12182         { TG3PCI_SUBVENDOR_ID_3COM,
12183           TG3PCI_SUBDEVICE_ID_3COM_3C996T, TG3_PHY_ID_BCM5401 },
12184         { TG3PCI_SUBVENDOR_ID_3COM,
12185           TG3PCI_SUBDEVICE_ID_3COM_3C996BT, TG3_PHY_ID_BCM5701 },
12186         { TG3PCI_SUBVENDOR_ID_3COM,
12187           TG3PCI_SUBDEVICE_ID_3COM_3C996SX, 0 },
12188         { TG3PCI_SUBVENDOR_ID_3COM,
12189           TG3PCI_SUBDEVICE_ID_3COM_3C1000T, TG3_PHY_ID_BCM5701 },
12190         { TG3PCI_SUBVENDOR_ID_3COM,
12191           TG3PCI_SUBDEVICE_ID_3COM_3C940BR01, TG3_PHY_ID_BCM5701 },
12192
12193         /* DELL boards. */
12194         { TG3PCI_SUBVENDOR_ID_DELL,
12195           TG3PCI_SUBDEVICE_ID_DELL_VIPER, TG3_PHY_ID_BCM5401 },
12196         { TG3PCI_SUBVENDOR_ID_DELL,
12197           TG3PCI_SUBDEVICE_ID_DELL_JAGUAR, TG3_PHY_ID_BCM5401 },
12198         { TG3PCI_SUBVENDOR_ID_DELL,
12199           TG3PCI_SUBDEVICE_ID_DELL_MERLOT, TG3_PHY_ID_BCM5411 },
12200         { TG3PCI_SUBVENDOR_ID_DELL,
12201           TG3PCI_SUBDEVICE_ID_DELL_SLIM_MERLOT, TG3_PHY_ID_BCM5411 },
12202
12203         /* Compaq boards. */
12204         { TG3PCI_SUBVENDOR_ID_COMPAQ,
12205           TG3PCI_SUBDEVICE_ID_COMPAQ_BANSHEE, TG3_PHY_ID_BCM5701 },
12206         { TG3PCI_SUBVENDOR_ID_COMPAQ,
12207           TG3PCI_SUBDEVICE_ID_COMPAQ_BANSHEE_2, TG3_PHY_ID_BCM5701 },
12208         { TG3PCI_SUBVENDOR_ID_COMPAQ,
12209           TG3PCI_SUBDEVICE_ID_COMPAQ_CHANGELING, 0 },
12210         { TG3PCI_SUBVENDOR_ID_COMPAQ,
12211           TG3PCI_SUBDEVICE_ID_COMPAQ_NC7780, TG3_PHY_ID_BCM5701 },
12212         { TG3PCI_SUBVENDOR_ID_COMPAQ,
12213           TG3PCI_SUBDEVICE_ID_COMPAQ_NC7780_2, TG3_PHY_ID_BCM5701 },
12214
12215         /* IBM boards. */
12216         { TG3PCI_SUBVENDOR_ID_IBM,
12217           TG3PCI_SUBDEVICE_ID_IBM_5703SAX2, 0 }
12218 };
12219
12220 static struct subsys_tbl_ent * __devinit tg3_lookup_by_subsys(struct tg3 *tp)
12221 {
12222         int i;
12223
12224         for (i = 0; i < ARRAY_SIZE(subsys_id_to_phy_id); i++) {
12225                 if ((subsys_id_to_phy_id[i].subsys_vendor ==
12226                      tp->pdev->subsystem_vendor) &&
12227                     (subsys_id_to_phy_id[i].subsys_devid ==
12228                      tp->pdev->subsystem_device))
12229                         return &subsys_id_to_phy_id[i];
12230         }
12231         return NULL;
12232 }
12233
12234 static void __devinit tg3_get_eeprom_hw_cfg(struct tg3 *tp)
12235 {
12236         u32 val;
12237         u16 pmcsr;
12238
12239         /* On some early chips the SRAM cannot be accessed in D3hot state,
12240          * so need make sure we're in D0.
12241          */
12242         pci_read_config_word(tp->pdev, tp->pm_cap + PCI_PM_CTRL, &pmcsr);
12243         pmcsr &= ~PCI_PM_CTRL_STATE_MASK;
12244         pci_write_config_word(tp->pdev, tp->pm_cap + PCI_PM_CTRL, pmcsr);
12245         msleep(1);
12246
12247         /* Make sure register accesses (indirect or otherwise)
12248          * will function correctly.
12249          */
12250         pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
12251                                tp->misc_host_ctrl);
12252
12253         /* The memory arbiter has to be enabled in order for SRAM accesses
12254          * to succeed.  Normally on powerup the tg3 chip firmware will make
12255          * sure it is enabled, but other entities such as system netboot
12256          * code might disable it.
12257          */
12258         val = tr32(MEMARB_MODE);
12259         tw32(MEMARB_MODE, val | MEMARB_MODE_ENABLE);
12260
12261         tp->phy_id = TG3_PHY_ID_INVALID;
12262         tp->led_ctrl = LED_CTRL_MODE_PHY_1;
12263
12264         /* Assume an onboard device and WOL capable by default.  */
12265         tp->tg3_flags |= TG3_FLAG_EEPROM_WRITE_PROT | TG3_FLAG_WOL_CAP;
12266
12267         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
12268                 if (!(tr32(PCIE_TRANSACTION_CFG) & PCIE_TRANS_CFG_LOM)) {
12269                         tp->tg3_flags &= ~TG3_FLAG_EEPROM_WRITE_PROT;
12270                         tp->tg3_flags2 |= TG3_FLG2_IS_NIC;
12271                 }
12272                 val = tr32(VCPU_CFGSHDW);
12273                 if (val & VCPU_CFGSHDW_ASPM_DBNC)
12274                         tp->tg3_flags |= TG3_FLAG_ASPM_WORKAROUND;
12275                 if ((val & VCPU_CFGSHDW_WOL_ENABLE) &&
12276                     (val & VCPU_CFGSHDW_WOL_MAGPKT))
12277                         tp->tg3_flags |= TG3_FLAG_WOL_ENABLE;
12278                 goto done;
12279         }
12280
12281         tg3_read_mem(tp, NIC_SRAM_DATA_SIG, &val);
12282         if (val == NIC_SRAM_DATA_SIG_MAGIC) {
12283                 u32 nic_cfg, led_cfg;
12284                 u32 nic_phy_id, ver, cfg2 = 0, cfg4 = 0, eeprom_phy_id;
12285                 int eeprom_phy_serdes = 0;
12286
12287                 tg3_read_mem(tp, NIC_SRAM_DATA_CFG, &nic_cfg);
12288                 tp->nic_sram_data_cfg = nic_cfg;
12289
12290                 tg3_read_mem(tp, NIC_SRAM_DATA_VER, &ver);
12291                 ver >>= NIC_SRAM_DATA_VER_SHIFT;
12292                 if ((GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700) &&
12293                     (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701) &&
12294                     (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5703) &&
12295                     (ver > 0) && (ver < 0x100))
12296                         tg3_read_mem(tp, NIC_SRAM_DATA_CFG_2, &cfg2);
12297
12298                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
12299                         tg3_read_mem(tp, NIC_SRAM_DATA_CFG_4, &cfg4);
12300
12301                 if ((nic_cfg & NIC_SRAM_DATA_CFG_PHY_TYPE_MASK) ==
12302                     NIC_SRAM_DATA_CFG_PHY_TYPE_FIBER)
12303                         eeprom_phy_serdes = 1;
12304
12305                 tg3_read_mem(tp, NIC_SRAM_DATA_PHY_ID, &nic_phy_id);
12306                 if (nic_phy_id != 0) {
12307                         u32 id1 = nic_phy_id & NIC_SRAM_DATA_PHY_ID1_MASK;
12308                         u32 id2 = nic_phy_id & NIC_SRAM_DATA_PHY_ID2_MASK;
12309
12310                         eeprom_phy_id  = (id1 >> 16) << 10;
12311                         eeprom_phy_id |= (id2 & 0xfc00) << 16;
12312                         eeprom_phy_id |= (id2 & 0x03ff) <<  0;
12313                 } else
12314                         eeprom_phy_id = 0;
12315
12316                 tp->phy_id = eeprom_phy_id;
12317                 if (eeprom_phy_serdes) {
12318                         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
12319                                 tp->phy_flags |= TG3_PHYFLG_PHY_SERDES;
12320                         else
12321                                 tp->phy_flags |= TG3_PHYFLG_MII_SERDES;
12322                 }
12323
12324                 if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS)
12325                         led_cfg = cfg2 & (NIC_SRAM_DATA_CFG_LED_MODE_MASK |
12326                                     SHASTA_EXT_LED_MODE_MASK);
12327                 else
12328                         led_cfg = nic_cfg & NIC_SRAM_DATA_CFG_LED_MODE_MASK;
12329
12330                 switch (led_cfg) {
12331                 default:
12332                 case NIC_SRAM_DATA_CFG_LED_MODE_PHY_1:
12333                         tp->led_ctrl = LED_CTRL_MODE_PHY_1;
12334                         break;
12335
12336                 case NIC_SRAM_DATA_CFG_LED_MODE_PHY_2:
12337                         tp->led_ctrl = LED_CTRL_MODE_PHY_2;
12338                         break;
12339
12340                 case NIC_SRAM_DATA_CFG_LED_MODE_MAC:
12341                         tp->led_ctrl = LED_CTRL_MODE_MAC;
12342
12343                         /* Default to PHY_1_MODE if 0 (MAC_MODE) is
12344                          * read on some older 5700/5701 bootcode.
12345                          */
12346                         if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
12347                             ASIC_REV_5700 ||
12348                             GET_ASIC_REV(tp->pci_chip_rev_id) ==
12349                             ASIC_REV_5701)
12350                                 tp->led_ctrl = LED_CTRL_MODE_PHY_1;
12351
12352                         break;
12353
12354                 case SHASTA_EXT_LED_SHARED:
12355                         tp->led_ctrl = LED_CTRL_MODE_SHARED;
12356                         if (tp->pci_chip_rev_id != CHIPREV_ID_5750_A0 &&
12357                             tp->pci_chip_rev_id != CHIPREV_ID_5750_A1)
12358                                 tp->led_ctrl |= (LED_CTRL_MODE_PHY_1 |
12359                                                  LED_CTRL_MODE_PHY_2);
12360                         break;
12361
12362                 case SHASTA_EXT_LED_MAC:
12363                         tp->led_ctrl = LED_CTRL_MODE_SHASTA_MAC;
12364                         break;
12365
12366                 case SHASTA_EXT_LED_COMBO:
12367                         tp->led_ctrl = LED_CTRL_MODE_COMBO;
12368                         if (tp->pci_chip_rev_id != CHIPREV_ID_5750_A0)
12369                                 tp->led_ctrl |= (LED_CTRL_MODE_PHY_1 |
12370                                                  LED_CTRL_MODE_PHY_2);
12371                         break;
12372
12373                 }
12374
12375                 if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
12376                      GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) &&
12377                     tp->pdev->subsystem_vendor == PCI_VENDOR_ID_DELL)
12378                         tp->led_ctrl = LED_CTRL_MODE_PHY_2;
12379
12380                 if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX)
12381                         tp->led_ctrl = LED_CTRL_MODE_PHY_1;
12382
12383                 if (nic_cfg & NIC_SRAM_DATA_CFG_EEPROM_WP) {
12384                         tp->tg3_flags |= TG3_FLAG_EEPROM_WRITE_PROT;
12385                         if ((tp->pdev->subsystem_vendor ==
12386                              PCI_VENDOR_ID_ARIMA) &&
12387                             (tp->pdev->subsystem_device == 0x205a ||
12388                              tp->pdev->subsystem_device == 0x2063))
12389                                 tp->tg3_flags &= ~TG3_FLAG_EEPROM_WRITE_PROT;
12390                 } else {
12391                         tp->tg3_flags &= ~TG3_FLAG_EEPROM_WRITE_PROT;
12392                         tp->tg3_flags2 |= TG3_FLG2_IS_NIC;
12393                 }
12394
12395                 if (nic_cfg & NIC_SRAM_DATA_CFG_ASF_ENABLE) {
12396                         tp->tg3_flags |= TG3_FLAG_ENABLE_ASF;
12397                         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS)
12398                                 tp->tg3_flags2 |= TG3_FLG2_ASF_NEW_HANDSHAKE;
12399                 }
12400
12401                 if ((nic_cfg & NIC_SRAM_DATA_CFG_APE_ENABLE) &&
12402                         (tp->tg3_flags2 & TG3_FLG2_5750_PLUS))
12403                         tp->tg3_flags3 |= TG3_FLG3_ENABLE_APE;
12404
12405                 if (tp->phy_flags & TG3_PHYFLG_ANY_SERDES &&
12406                     !(nic_cfg & NIC_SRAM_DATA_CFG_FIBER_WOL))
12407                         tp->tg3_flags &= ~TG3_FLAG_WOL_CAP;
12408
12409                 if ((tp->tg3_flags & TG3_FLAG_WOL_CAP) &&
12410                     (nic_cfg & NIC_SRAM_DATA_CFG_WOL_ENABLE))
12411                         tp->tg3_flags |= TG3_FLAG_WOL_ENABLE;
12412
12413                 if (cfg2 & (1 << 17))
12414                         tp->phy_flags |= TG3_PHYFLG_CAPACITIVE_COUPLING;
12415
12416                 /* serdes signal pre-emphasis in register 0x590 set by */
12417                 /* bootcode if bit 18 is set */
12418                 if (cfg2 & (1 << 18))
12419                         tp->phy_flags |= TG3_PHYFLG_SERDES_PREEMPHASIS;
12420
12421                 if (((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
12422                       GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX)) &&
12423                     (cfg2 & NIC_SRAM_DATA_CFG_2_APD_EN))
12424                         tp->phy_flags |= TG3_PHYFLG_ENABLE_APD;
12425
12426                 if ((tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) &&
12427                     GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785 &&
12428                     !(tp->tg3_flags3 & TG3_FLG3_5717_PLUS)) {
12429                         u32 cfg3;
12430
12431                         tg3_read_mem(tp, NIC_SRAM_DATA_CFG_3, &cfg3);
12432                         if (cfg3 & NIC_SRAM_ASPM_DEBOUNCE)
12433                                 tp->tg3_flags |= TG3_FLAG_ASPM_WORKAROUND;
12434                 }
12435
12436                 if (cfg4 & NIC_SRAM_RGMII_INBAND_DISABLE)
12437                         tp->tg3_flags3 |= TG3_FLG3_RGMII_INBAND_DISABLE;
12438                 if (cfg4 & NIC_SRAM_RGMII_EXT_IBND_RX_EN)
12439                         tp->tg3_flags3 |= TG3_FLG3_RGMII_EXT_IBND_RX_EN;
12440                 if (cfg4 & NIC_SRAM_RGMII_EXT_IBND_TX_EN)
12441                         tp->tg3_flags3 |= TG3_FLG3_RGMII_EXT_IBND_TX_EN;
12442         }
12443 done:
12444         device_init_wakeup(&tp->pdev->dev, tp->tg3_flags & TG3_FLAG_WOL_CAP);
12445         device_set_wakeup_enable(&tp->pdev->dev,
12446                                  tp->tg3_flags & TG3_FLAG_WOL_ENABLE);
12447 }
12448
12449 static int __devinit tg3_issue_otp_command(struct tg3 *tp, u32 cmd)
12450 {
12451         int i;
12452         u32 val;
12453
12454         tw32(OTP_CTRL, cmd | OTP_CTRL_OTP_CMD_START);
12455         tw32(OTP_CTRL, cmd);
12456
12457         /* Wait for up to 1 ms for command to execute. */
12458         for (i = 0; i < 100; i++) {
12459                 val = tr32(OTP_STATUS);
12460                 if (val & OTP_STATUS_CMD_DONE)
12461                         break;
12462                 udelay(10);
12463         }
12464
12465         return (val & OTP_STATUS_CMD_DONE) ? 0 : -EBUSY;
12466 }
12467
12468 /* Read the gphy configuration from the OTP region of the chip.  The gphy
12469  * configuration is a 32-bit value that straddles the alignment boundary.
12470  * We do two 32-bit reads and then shift and merge the results.
12471  */
12472 static u32 __devinit tg3_read_otp_phycfg(struct tg3 *tp)
12473 {
12474         u32 bhalf_otp, thalf_otp;
12475
12476         tw32(OTP_MODE, OTP_MODE_OTP_THRU_GRC);
12477
12478         if (tg3_issue_otp_command(tp, OTP_CTRL_OTP_CMD_INIT))
12479                 return 0;
12480
12481         tw32(OTP_ADDRESS, OTP_ADDRESS_MAGIC1);
12482
12483         if (tg3_issue_otp_command(tp, OTP_CTRL_OTP_CMD_READ))
12484                 return 0;
12485
12486         thalf_otp = tr32(OTP_READ_DATA);
12487
12488         tw32(OTP_ADDRESS, OTP_ADDRESS_MAGIC2);
12489
12490         if (tg3_issue_otp_command(tp, OTP_CTRL_OTP_CMD_READ))
12491                 return 0;
12492
12493         bhalf_otp = tr32(OTP_READ_DATA);
12494
12495         return ((thalf_otp & 0x0000ffff) << 16) | (bhalf_otp >> 16);
12496 }
12497
12498 static int __devinit tg3_phy_probe(struct tg3 *tp)
12499 {
12500         u32 hw_phy_id_1, hw_phy_id_2;
12501         u32 hw_phy_id, hw_phy_id_masked;
12502         int err;
12503
12504         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB)
12505                 return tg3_phy_init(tp);
12506
12507         /* Reading the PHY ID register can conflict with ASF
12508          * firmware access to the PHY hardware.
12509          */
12510         err = 0;
12511         if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) ||
12512             (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)) {
12513                 hw_phy_id = hw_phy_id_masked = TG3_PHY_ID_INVALID;
12514         } else {
12515                 /* Now read the physical PHY_ID from the chip and verify
12516                  * that it is sane.  If it doesn't look good, we fall back
12517                  * to either the hard-coded table based PHY_ID and failing
12518                  * that the value found in the eeprom area.
12519                  */
12520                 err |= tg3_readphy(tp, MII_PHYSID1, &hw_phy_id_1);
12521                 err |= tg3_readphy(tp, MII_PHYSID2, &hw_phy_id_2);
12522
12523                 hw_phy_id  = (hw_phy_id_1 & 0xffff) << 10;
12524                 hw_phy_id |= (hw_phy_id_2 & 0xfc00) << 16;
12525                 hw_phy_id |= (hw_phy_id_2 & 0x03ff) <<  0;
12526
12527                 hw_phy_id_masked = hw_phy_id & TG3_PHY_ID_MASK;
12528         }
12529
12530         if (!err && TG3_KNOWN_PHY_ID(hw_phy_id_masked)) {
12531                 tp->phy_id = hw_phy_id;
12532                 if (hw_phy_id_masked == TG3_PHY_ID_BCM8002)
12533                         tp->phy_flags |= TG3_PHYFLG_PHY_SERDES;
12534                 else
12535                         tp->phy_flags &= ~TG3_PHYFLG_PHY_SERDES;
12536         } else {
12537                 if (tp->phy_id != TG3_PHY_ID_INVALID) {
12538                         /* Do nothing, phy ID already set up in
12539                          * tg3_get_eeprom_hw_cfg().
12540                          */
12541                 } else {
12542                         struct subsys_tbl_ent *p;
12543
12544                         /* No eeprom signature?  Try the hardcoded
12545                          * subsys device table.
12546                          */
12547                         p = tg3_lookup_by_subsys(tp);
12548                         if (!p)
12549                                 return -ENODEV;
12550
12551                         tp->phy_id = p->phy_id;
12552                         if (!tp->phy_id ||
12553                             tp->phy_id == TG3_PHY_ID_BCM8002)
12554                                 tp->phy_flags |= TG3_PHYFLG_PHY_SERDES;
12555                 }
12556         }
12557
12558         if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_5718 ||
12559             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765 &&
12560              tp->pci_chip_rev_id != CHIPREV_ID_57765_A0))
12561                 tp->phy_flags |= TG3_PHYFLG_EEE_CAP;
12562
12563         if (!(tp->phy_flags & TG3_PHYFLG_ANY_SERDES) &&
12564             !(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) &&
12565             !(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)) {
12566                 u32 bmsr, adv_reg, tg3_ctrl, mask;
12567
12568                 tg3_readphy(tp, MII_BMSR, &bmsr);
12569                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
12570                     (bmsr & BMSR_LSTATUS))
12571                         goto skip_phy_reset;
12572
12573                 err = tg3_phy_reset(tp);
12574                 if (err)
12575                         return err;
12576
12577                 adv_reg = (ADVERTISE_10HALF | ADVERTISE_10FULL |
12578                            ADVERTISE_100HALF | ADVERTISE_100FULL |
12579                            ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
12580                 tg3_ctrl = 0;
12581                 if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY)) {
12582                         tg3_ctrl = (MII_TG3_CTRL_ADV_1000_HALF |
12583                                     MII_TG3_CTRL_ADV_1000_FULL);
12584                         if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
12585                             tp->pci_chip_rev_id == CHIPREV_ID_5701_B0)
12586                                 tg3_ctrl |= (MII_TG3_CTRL_AS_MASTER |
12587                                              MII_TG3_CTRL_ENABLE_AS_MASTER);
12588                 }
12589
12590                 mask = (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full |
12591                         ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full |
12592                         ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full);
12593                 if (!tg3_copper_is_advertising_all(tp, mask)) {
12594                         tg3_writephy(tp, MII_ADVERTISE, adv_reg);
12595
12596                         if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY))
12597                                 tg3_writephy(tp, MII_TG3_CTRL, tg3_ctrl);
12598
12599                         tg3_writephy(tp, MII_BMCR,
12600                                      BMCR_ANENABLE | BMCR_ANRESTART);
12601                 }
12602                 tg3_phy_set_wirespeed(tp);
12603
12604                 tg3_writephy(tp, MII_ADVERTISE, adv_reg);
12605                 if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY))
12606                         tg3_writephy(tp, MII_TG3_CTRL, tg3_ctrl);
12607         }
12608
12609 skip_phy_reset:
12610         if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5401) {
12611                 err = tg3_init_5401phy_dsp(tp);
12612                 if (err)
12613                         return err;
12614
12615                 err = tg3_init_5401phy_dsp(tp);
12616         }
12617
12618         if (tp->phy_flags & TG3_PHYFLG_ANY_SERDES)
12619                 tp->link_config.advertising =
12620                         (ADVERTISED_1000baseT_Half |
12621                          ADVERTISED_1000baseT_Full |
12622                          ADVERTISED_Autoneg |
12623                          ADVERTISED_FIBRE);
12624         if (tp->phy_flags & TG3_PHYFLG_10_100_ONLY)
12625                 tp->link_config.advertising &=
12626                         ~(ADVERTISED_1000baseT_Half |
12627                           ADVERTISED_1000baseT_Full);
12628
12629         return err;
12630 }
12631
12632 static void __devinit tg3_read_vpd(struct tg3 *tp)
12633 {
12634         u8 *vpd_data;
12635         unsigned int block_end, rosize, len;
12636         int j, i = 0;
12637         u32 magic;
12638
12639         if ((tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) ||
12640             tg3_nvram_read(tp, 0x0, &magic))
12641                 goto out_no_vpd;
12642
12643         vpd_data = kmalloc(TG3_NVM_VPD_LEN, GFP_KERNEL);
12644         if (!vpd_data)
12645                 goto out_no_vpd;
12646
12647         if (magic == TG3_EEPROM_MAGIC) {
12648                 for (i = 0; i < TG3_NVM_VPD_LEN; i += 4) {
12649                         u32 tmp;
12650
12651                         /* The data is in little-endian format in NVRAM.
12652                          * Use the big-endian read routines to preserve
12653                          * the byte order as it exists in NVRAM.
12654                          */
12655                         if (tg3_nvram_read_be32(tp, TG3_NVM_VPD_OFF + i, &tmp))
12656                                 goto out_not_found;
12657
12658                         memcpy(&vpd_data[i], &tmp, sizeof(tmp));
12659                 }
12660         } else {
12661                 ssize_t cnt;
12662                 unsigned int pos = 0;
12663
12664                 for (; pos < TG3_NVM_VPD_LEN && i < 3; i++, pos += cnt) {
12665                         cnt = pci_read_vpd(tp->pdev, pos,
12666                                            TG3_NVM_VPD_LEN - pos,
12667                                            &vpd_data[pos]);
12668                         if (cnt == -ETIMEDOUT || -EINTR)
12669                                 cnt = 0;
12670                         else if (cnt < 0)
12671                                 goto out_not_found;
12672                 }
12673                 if (pos != TG3_NVM_VPD_LEN)
12674                         goto out_not_found;
12675         }
12676
12677         i = pci_vpd_find_tag(vpd_data, 0, TG3_NVM_VPD_LEN,
12678                              PCI_VPD_LRDT_RO_DATA);
12679         if (i < 0)
12680                 goto out_not_found;
12681
12682         rosize = pci_vpd_lrdt_size(&vpd_data[i]);
12683         block_end = i + PCI_VPD_LRDT_TAG_SIZE + rosize;
12684         i += PCI_VPD_LRDT_TAG_SIZE;
12685
12686         if (block_end > TG3_NVM_VPD_LEN)
12687                 goto out_not_found;
12688
12689         j = pci_vpd_find_info_keyword(vpd_data, i, rosize,
12690                                       PCI_VPD_RO_KEYWORD_MFR_ID);
12691         if (j > 0) {
12692                 len = pci_vpd_info_field_size(&vpd_data[j]);
12693
12694                 j += PCI_VPD_INFO_FLD_HDR_SIZE;
12695                 if (j + len > block_end || len != 4 ||
12696                     memcmp(&vpd_data[j], "1028", 4))
12697                         goto partno;
12698
12699                 j = pci_vpd_find_info_keyword(vpd_data, i, rosize,
12700                                               PCI_VPD_RO_KEYWORD_VENDOR0);
12701                 if (j < 0)
12702                         goto partno;
12703
12704                 len = pci_vpd_info_field_size(&vpd_data[j]);
12705
12706                 j += PCI_VPD_INFO_FLD_HDR_SIZE;
12707                 if (j + len > block_end)
12708                         goto partno;
12709
12710                 memcpy(tp->fw_ver, &vpd_data[j], len);
12711                 strncat(tp->fw_ver, " bc ", TG3_NVM_VPD_LEN - len - 1);
12712         }
12713
12714 partno:
12715         i = pci_vpd_find_info_keyword(vpd_data, i, rosize,
12716                                       PCI_VPD_RO_KEYWORD_PARTNO);
12717         if (i < 0)
12718                 goto out_not_found;
12719
12720         len = pci_vpd_info_field_size(&vpd_data[i]);
12721
12722         i += PCI_VPD_INFO_FLD_HDR_SIZE;
12723         if (len > TG3_BPN_SIZE ||
12724             (len + i) > TG3_NVM_VPD_LEN)
12725                 goto out_not_found;
12726
12727         memcpy(tp->board_part_number, &vpd_data[i], len);
12728
12729 out_not_found:
12730         kfree(vpd_data);
12731         if (tp->board_part_number[0])
12732                 return;
12733
12734 out_no_vpd:
12735         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717) {
12736                 if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_5717)
12737                         strcpy(tp->board_part_number, "BCM5717");
12738                 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_5718)
12739                         strcpy(tp->board_part_number, "BCM5718");
12740                 else
12741                         goto nomatch;
12742         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780) {
12743                 if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57780)
12744                         strcpy(tp->board_part_number, "BCM57780");
12745                 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57760)
12746                         strcpy(tp->board_part_number, "BCM57760");
12747                 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57790)
12748                         strcpy(tp->board_part_number, "BCM57790");
12749                 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57788)
12750                         strcpy(tp->board_part_number, "BCM57788");
12751                 else
12752                         goto nomatch;
12753         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765) {
12754                 if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57761)
12755                         strcpy(tp->board_part_number, "BCM57761");
12756                 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57765)
12757                         strcpy(tp->board_part_number, "BCM57765");
12758                 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57781)
12759                         strcpy(tp->board_part_number, "BCM57781");
12760                 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57785)
12761                         strcpy(tp->board_part_number, "BCM57785");
12762                 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57791)
12763                         strcpy(tp->board_part_number, "BCM57791");
12764                 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57795)
12765                         strcpy(tp->board_part_number, "BCM57795");
12766                 else
12767                         goto nomatch;
12768         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
12769                 strcpy(tp->board_part_number, "BCM95906");
12770         } else {
12771 nomatch:
12772                 strcpy(tp->board_part_number, "none");
12773         }
12774 }
12775
12776 static int __devinit tg3_fw_img_is_valid(struct tg3 *tp, u32 offset)
12777 {
12778         u32 val;
12779
12780         if (tg3_nvram_read(tp, offset, &val) ||
12781             (val & 0xfc000000) != 0x0c000000 ||
12782             tg3_nvram_read(tp, offset + 4, &val) ||
12783             val != 0)
12784                 return 0;
12785
12786         return 1;
12787 }
12788
12789 static void __devinit tg3_read_bc_ver(struct tg3 *tp)
12790 {
12791         u32 val, offset, start, ver_offset;
12792         int i, dst_off;
12793         bool newver = false;
12794
12795         if (tg3_nvram_read(tp, 0xc, &offset) ||
12796             tg3_nvram_read(tp, 0x4, &start))
12797                 return;
12798
12799         offset = tg3_nvram_logical_addr(tp, offset);
12800
12801         if (tg3_nvram_read(tp, offset, &val))
12802                 return;
12803
12804         if ((val & 0xfc000000) == 0x0c000000) {
12805                 if (tg3_nvram_read(tp, offset + 4, &val))
12806                         return;
12807
12808                 if (val == 0)
12809                         newver = true;
12810         }
12811
12812         dst_off = strlen(tp->fw_ver);
12813
12814         if (newver) {
12815                 if (TG3_VER_SIZE - dst_off < 16 ||
12816                     tg3_nvram_read(tp, offset + 8, &ver_offset))
12817                         return;
12818
12819                 offset = offset + ver_offset - start;
12820                 for (i = 0; i < 16; i += 4) {
12821                         __be32 v;
12822                         if (tg3_nvram_read_be32(tp, offset + i, &v))
12823                                 return;
12824
12825                         memcpy(tp->fw_ver + dst_off + i, &v, sizeof(v));
12826                 }
12827         } else {
12828                 u32 major, minor;
12829
12830                 if (tg3_nvram_read(tp, TG3_NVM_PTREV_BCVER, &ver_offset))
12831                         return;
12832
12833                 major = (ver_offset & TG3_NVM_BCVER_MAJMSK) >>
12834                         TG3_NVM_BCVER_MAJSFT;
12835                 minor = ver_offset & TG3_NVM_BCVER_MINMSK;
12836                 snprintf(&tp->fw_ver[dst_off], TG3_VER_SIZE - dst_off,
12837                          "v%d.%02d", major, minor);
12838         }
12839 }
12840
12841 static void __devinit tg3_read_hwsb_ver(struct tg3 *tp)
12842 {
12843         u32 val, major, minor;
12844
12845         /* Use native endian representation */
12846         if (tg3_nvram_read(tp, TG3_NVM_HWSB_CFG1, &val))
12847                 return;
12848
12849         major = (val & TG3_NVM_HWSB_CFG1_MAJMSK) >>
12850                 TG3_NVM_HWSB_CFG1_MAJSFT;
12851         minor = (val & TG3_NVM_HWSB_CFG1_MINMSK) >>
12852                 TG3_NVM_HWSB_CFG1_MINSFT;
12853
12854         snprintf(&tp->fw_ver[0], 32, "sb v%d.%02d", major, minor);
12855 }
12856
12857 static void __devinit tg3_read_sb_ver(struct tg3 *tp, u32 val)
12858 {
12859         u32 offset, major, minor, build;
12860
12861         strncat(tp->fw_ver, "sb", TG3_VER_SIZE - strlen(tp->fw_ver) - 1);
12862
12863         if ((val & TG3_EEPROM_SB_FORMAT_MASK) != TG3_EEPROM_SB_FORMAT_1)
12864                 return;
12865
12866         switch (val & TG3_EEPROM_SB_REVISION_MASK) {
12867         case TG3_EEPROM_SB_REVISION_0:
12868                 offset = TG3_EEPROM_SB_F1R0_EDH_OFF;
12869                 break;
12870         case TG3_EEPROM_SB_REVISION_2:
12871                 offset = TG3_EEPROM_SB_F1R2_EDH_OFF;
12872                 break;
12873         case TG3_EEPROM_SB_REVISION_3:
12874                 offset = TG3_EEPROM_SB_F1R3_EDH_OFF;
12875                 break;
12876         case TG3_EEPROM_SB_REVISION_4:
12877                 offset = TG3_EEPROM_SB_F1R4_EDH_OFF;
12878                 break;
12879         case TG3_EEPROM_SB_REVISION_5:
12880                 offset = TG3_EEPROM_SB_F1R5_EDH_OFF;
12881                 break;
12882         case TG3_EEPROM_SB_REVISION_6:
12883                 offset = TG3_EEPROM_SB_F1R6_EDH_OFF;
12884                 break;
12885         default:
12886                 return;
12887         }
12888
12889         if (tg3_nvram_read(tp, offset, &val))
12890                 return;
12891
12892         build = (val & TG3_EEPROM_SB_EDH_BLD_MASK) >>
12893                 TG3_EEPROM_SB_EDH_BLD_SHFT;
12894         major = (val & TG3_EEPROM_SB_EDH_MAJ_MASK) >>
12895                 TG3_EEPROM_SB_EDH_MAJ_SHFT;
12896         minor =  val & TG3_EEPROM_SB_EDH_MIN_MASK;
12897
12898         if (minor > 99 || build > 26)
12899                 return;
12900
12901         offset = strlen(tp->fw_ver);
12902         snprintf(&tp->fw_ver[offset], TG3_VER_SIZE - offset,
12903                  " v%d.%02d", major, minor);
12904
12905         if (build > 0) {
12906                 offset = strlen(tp->fw_ver);
12907                 if (offset < TG3_VER_SIZE - 1)
12908                         tp->fw_ver[offset] = 'a' + build - 1;
12909         }
12910 }
12911
12912 static void __devinit tg3_read_mgmtfw_ver(struct tg3 *tp)
12913 {
12914         u32 val, offset, start;
12915         int i, vlen;
12916
12917         for (offset = TG3_NVM_DIR_START;
12918              offset < TG3_NVM_DIR_END;
12919              offset += TG3_NVM_DIRENT_SIZE) {
12920                 if (tg3_nvram_read(tp, offset, &val))
12921                         return;
12922
12923                 if ((val >> TG3_NVM_DIRTYPE_SHIFT) == TG3_NVM_DIRTYPE_ASFINI)
12924                         break;
12925         }
12926
12927         if (offset == TG3_NVM_DIR_END)
12928                 return;
12929
12930         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
12931                 start = 0x08000000;
12932         else if (tg3_nvram_read(tp, offset - 4, &start))
12933                 return;
12934
12935         if (tg3_nvram_read(tp, offset + 4, &offset) ||
12936             !tg3_fw_img_is_valid(tp, offset) ||
12937             tg3_nvram_read(tp, offset + 8, &val))
12938                 return;
12939
12940         offset += val - start;
12941
12942         vlen = strlen(tp->fw_ver);
12943
12944         tp->fw_ver[vlen++] = ',';
12945         tp->fw_ver[vlen++] = ' ';
12946
12947         for (i = 0; i < 4; i++) {
12948                 __be32 v;
12949                 if (tg3_nvram_read_be32(tp, offset, &v))
12950                         return;
12951
12952                 offset += sizeof(v);
12953
12954                 if (vlen > TG3_VER_SIZE - sizeof(v)) {
12955                         memcpy(&tp->fw_ver[vlen], &v, TG3_VER_SIZE - vlen);
12956                         break;
12957                 }
12958
12959                 memcpy(&tp->fw_ver[vlen], &v, sizeof(v));
12960                 vlen += sizeof(v);
12961         }
12962 }
12963
12964 static void __devinit tg3_read_dash_ver(struct tg3 *tp)
12965 {
12966         int vlen;
12967         u32 apedata;
12968         char *fwtype;
12969
12970         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) ||
12971             !(tp->tg3_flags  & TG3_FLAG_ENABLE_ASF))
12972                 return;
12973
12974         apedata = tg3_ape_read32(tp, TG3_APE_SEG_SIG);
12975         if (apedata != APE_SEG_SIG_MAGIC)
12976                 return;
12977
12978         apedata = tg3_ape_read32(tp, TG3_APE_FW_STATUS);
12979         if (!(apedata & APE_FW_STATUS_READY))
12980                 return;
12981
12982         apedata = tg3_ape_read32(tp, TG3_APE_FW_VERSION);
12983
12984         if (tg3_ape_read32(tp, TG3_APE_FW_FEATURES) & TG3_APE_FW_FEATURE_NCSI) {
12985                 tp->tg3_flags3 |= TG3_FLG3_APE_HAS_NCSI;
12986                 fwtype = "NCSI";
12987         } else {
12988                 fwtype = "DASH";
12989         }
12990
12991         vlen = strlen(tp->fw_ver);
12992
12993         snprintf(&tp->fw_ver[vlen], TG3_VER_SIZE - vlen, " %s v%d.%d.%d.%d",
12994                  fwtype,
12995                  (apedata & APE_FW_VERSION_MAJMSK) >> APE_FW_VERSION_MAJSFT,
12996                  (apedata & APE_FW_VERSION_MINMSK) >> APE_FW_VERSION_MINSFT,
12997                  (apedata & APE_FW_VERSION_REVMSK) >> APE_FW_VERSION_REVSFT,
12998                  (apedata & APE_FW_VERSION_BLDMSK));
12999 }
13000
13001 static void __devinit tg3_read_fw_ver(struct tg3 *tp)
13002 {
13003         u32 val;
13004         bool vpd_vers = false;
13005
13006         if (tp->fw_ver[0] != 0)
13007                 vpd_vers = true;
13008
13009         if (tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) {
13010                 strcat(tp->fw_ver, "sb");
13011                 return;
13012         }
13013
13014         if (tg3_nvram_read(tp, 0, &val))
13015                 return;
13016
13017         if (val == TG3_EEPROM_MAGIC)
13018                 tg3_read_bc_ver(tp);
13019         else if ((val & TG3_EEPROM_MAGIC_FW_MSK) == TG3_EEPROM_MAGIC_FW)
13020                 tg3_read_sb_ver(tp, val);
13021         else if ((val & TG3_EEPROM_MAGIC_HW_MSK) == TG3_EEPROM_MAGIC_HW)
13022                 tg3_read_hwsb_ver(tp);
13023         else
13024                 return;
13025
13026         if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF) ||
13027              (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) || vpd_vers)
13028                 goto done;
13029
13030         tg3_read_mgmtfw_ver(tp);
13031
13032 done:
13033         tp->fw_ver[TG3_VER_SIZE - 1] = 0;
13034 }
13035
13036 static struct pci_dev * __devinit tg3_find_peer(struct tg3 *);
13037
13038 static void inline vlan_features_add(struct net_device *dev, unsigned long flags)
13039 {
13040 #if TG3_VLAN_TAG_USED
13041         dev->vlan_features |= flags;
13042 #endif
13043 }
13044
13045 static inline u32 tg3_rx_ret_ring_size(struct tg3 *tp)
13046 {
13047         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
13048             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719)
13049                 return 4096;
13050         else if ((tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) &&
13051                  !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
13052                 return 1024;
13053         else
13054                 return 512;
13055 }
13056
13057 static int __devinit tg3_get_invariants(struct tg3 *tp)
13058 {
13059         static struct pci_device_id write_reorder_chipsets[] = {
13060                 { PCI_DEVICE(PCI_VENDOR_ID_AMD,
13061                              PCI_DEVICE_ID_AMD_FE_GATE_700C) },
13062                 { PCI_DEVICE(PCI_VENDOR_ID_AMD,
13063                              PCI_DEVICE_ID_AMD_8131_BRIDGE) },
13064                 { PCI_DEVICE(PCI_VENDOR_ID_VIA,
13065                              PCI_DEVICE_ID_VIA_8385_0) },
13066                 { },
13067         };
13068         u32 misc_ctrl_reg;
13069         u32 pci_state_reg, grc_misc_cfg;
13070         u32 val;
13071         u16 pci_cmd;
13072         int err;
13073
13074         /* Force memory write invalidate off.  If we leave it on,
13075          * then on 5700_BX chips we have to enable a workaround.
13076          * The workaround is to set the TG3PCI_DMA_RW_CTRL boundary
13077          * to match the cacheline size.  The Broadcom driver have this
13078          * workaround but turns MWI off all the times so never uses
13079          * it.  This seems to suggest that the workaround is insufficient.
13080          */
13081         pci_read_config_word(tp->pdev, PCI_COMMAND, &pci_cmd);
13082         pci_cmd &= ~PCI_COMMAND_INVALIDATE;
13083         pci_write_config_word(tp->pdev, PCI_COMMAND, pci_cmd);
13084
13085         /* It is absolutely critical that TG3PCI_MISC_HOST_CTRL
13086          * has the register indirect write enable bit set before
13087          * we try to access any of the MMIO registers.  It is also
13088          * critical that the PCI-X hw workaround situation is decided
13089          * before that as well.
13090          */
13091         pci_read_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
13092                               &misc_ctrl_reg);
13093
13094         tp->pci_chip_rev_id = (misc_ctrl_reg >>
13095                                MISC_HOST_CTRL_CHIPREV_SHIFT);
13096         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_USE_PROD_ID_REG) {
13097                 u32 prod_id_asic_rev;
13098
13099                 if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_5717 ||
13100                     tp->pdev->device == TG3PCI_DEVICE_TIGON3_5718 ||
13101                     tp->pdev->device == TG3PCI_DEVICE_TIGON3_5719)
13102                         pci_read_config_dword(tp->pdev,
13103                                               TG3PCI_GEN2_PRODID_ASICREV,
13104                                               &prod_id_asic_rev);
13105                 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57781 ||
13106                          tp->pdev->device == TG3PCI_DEVICE_TIGON3_57785 ||
13107                          tp->pdev->device == TG3PCI_DEVICE_TIGON3_57761 ||
13108                          tp->pdev->device == TG3PCI_DEVICE_TIGON3_57765 ||
13109                          tp->pdev->device == TG3PCI_DEVICE_TIGON3_57791 ||
13110                          tp->pdev->device == TG3PCI_DEVICE_TIGON3_57795)
13111                         pci_read_config_dword(tp->pdev,
13112                                               TG3PCI_GEN15_PRODID_ASICREV,
13113                                               &prod_id_asic_rev);
13114                 else
13115                         pci_read_config_dword(tp->pdev, TG3PCI_PRODID_ASICREV,
13116                                               &prod_id_asic_rev);
13117
13118                 tp->pci_chip_rev_id = prod_id_asic_rev;
13119         }
13120
13121         /* Wrong chip ID in 5752 A0. This code can be removed later
13122          * as A0 is not in production.
13123          */
13124         if (tp->pci_chip_rev_id == CHIPREV_ID_5752_A0_HW)
13125                 tp->pci_chip_rev_id = CHIPREV_ID_5752_A0;
13126
13127         /* If we have 5702/03 A1 or A2 on certain ICH chipsets,
13128          * we need to disable memory and use config. cycles
13129          * only to access all registers. The 5702/03 chips
13130          * can mistakenly decode the special cycles from the
13131          * ICH chipsets as memory write cycles, causing corruption
13132          * of register and memory space. Only certain ICH bridges
13133          * will drive special cycles with non-zero data during the
13134          * address phase which can fall within the 5703's address
13135          * range. This is not an ICH bug as the PCI spec allows
13136          * non-zero address during special cycles. However, only
13137          * these ICH bridges are known to drive non-zero addresses
13138          * during special cycles.
13139          *
13140          * Since special cycles do not cross PCI bridges, we only
13141          * enable this workaround if the 5703 is on the secondary
13142          * bus of these ICH bridges.
13143          */
13144         if ((tp->pci_chip_rev_id == CHIPREV_ID_5703_A1) ||
13145             (tp->pci_chip_rev_id == CHIPREV_ID_5703_A2)) {
13146                 static struct tg3_dev_id {
13147                         u32     vendor;
13148                         u32     device;
13149                         u32     rev;
13150                 } ich_chipsets[] = {
13151                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_8,
13152                           PCI_ANY_ID },
13153                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_8,
13154                           PCI_ANY_ID },
13155                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_11,
13156                           0xa },
13157                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_6,
13158                           PCI_ANY_ID },
13159                         { },
13160                 };
13161                 struct tg3_dev_id *pci_id = &ich_chipsets[0];
13162                 struct pci_dev *bridge = NULL;
13163
13164                 while (pci_id->vendor != 0) {
13165                         bridge = pci_get_device(pci_id->vendor, pci_id->device,
13166                                                 bridge);
13167                         if (!bridge) {
13168                                 pci_id++;
13169                                 continue;
13170                         }
13171                         if (pci_id->rev != PCI_ANY_ID) {
13172                                 if (bridge->revision > pci_id->rev)
13173                                         continue;
13174                         }
13175                         if (bridge->subordinate &&
13176                             (bridge->subordinate->number ==
13177                              tp->pdev->bus->number)) {
13178
13179                                 tp->tg3_flags2 |= TG3_FLG2_ICH_WORKAROUND;
13180                                 pci_dev_put(bridge);
13181                                 break;
13182                         }
13183                 }
13184         }
13185
13186         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)) {
13187                 static struct tg3_dev_id {
13188                         u32     vendor;
13189                         u32     device;
13190                 } bridge_chipsets[] = {
13191                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0 },
13192                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1 },
13193                         { },
13194                 };
13195                 struct tg3_dev_id *pci_id = &bridge_chipsets[0];
13196                 struct pci_dev *bridge = NULL;
13197
13198                 while (pci_id->vendor != 0) {
13199                         bridge = pci_get_device(pci_id->vendor,
13200                                                 pci_id->device,
13201                                                 bridge);
13202                         if (!bridge) {
13203                                 pci_id++;
13204                                 continue;
13205                         }
13206                         if (bridge->subordinate &&
13207                             (bridge->subordinate->number <=
13208                              tp->pdev->bus->number) &&
13209                             (bridge->subordinate->subordinate >=
13210                              tp->pdev->bus->number)) {
13211                                 tp->tg3_flags3 |= TG3_FLG3_5701_DMA_BUG;
13212                                 pci_dev_put(bridge);
13213                                 break;
13214                         }
13215                 }
13216         }
13217
13218         /* The EPB bridge inside 5714, 5715, and 5780 cannot support
13219          * DMA addresses > 40-bit. This bridge may have other additional
13220          * 57xx devices behind it in some 4-port NIC designs for example.
13221          * Any tg3 device found behind the bridge will also need the 40-bit
13222          * DMA workaround.
13223          */
13224         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780 ||
13225             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714) {
13226                 tp->tg3_flags2 |= TG3_FLG2_5780_CLASS;
13227                 tp->tg3_flags |= TG3_FLAG_40BIT_DMA_BUG;
13228                 tp->msi_cap = pci_find_capability(tp->pdev, PCI_CAP_ID_MSI);
13229         } else {
13230                 struct pci_dev *bridge = NULL;
13231
13232                 do {
13233                         bridge = pci_get_device(PCI_VENDOR_ID_SERVERWORKS,
13234                                                 PCI_DEVICE_ID_SERVERWORKS_EPB,
13235                                                 bridge);
13236                         if (bridge && bridge->subordinate &&
13237                             (bridge->subordinate->number <=
13238                              tp->pdev->bus->number) &&
13239                             (bridge->subordinate->subordinate >=
13240                              tp->pdev->bus->number)) {
13241                                 tp->tg3_flags |= TG3_FLAG_40BIT_DMA_BUG;
13242                                 pci_dev_put(bridge);
13243                                 break;
13244                         }
13245                 } while (bridge);
13246         }
13247
13248         /* Initialize misc host control in PCI block. */
13249         tp->misc_host_ctrl |= (misc_ctrl_reg &
13250                                MISC_HOST_CTRL_CHIPREV);
13251         pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
13252                                tp->misc_host_ctrl);
13253
13254         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
13255             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714 ||
13256             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717)
13257                 tp->pdev_peer = tg3_find_peer(tp);
13258
13259         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
13260             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719 ||
13261             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
13262                 tp->tg3_flags3 |= TG3_FLG3_5717_PLUS;
13263
13264         /* Intentionally exclude ASIC_REV_5906 */
13265         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 ||
13266             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5787 ||
13267             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
13268             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
13269             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
13270             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 ||
13271             (tp->tg3_flags3 & TG3_FLG3_5717_PLUS))
13272                 tp->tg3_flags3 |= TG3_FLG3_5755_PLUS;
13273
13274         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750 ||
13275             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752 ||
13276             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906 ||
13277             (tp->tg3_flags3 & TG3_FLG3_5755_PLUS) ||
13278             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
13279                 tp->tg3_flags2 |= TG3_FLG2_5750_PLUS;
13280
13281         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) ||
13282             (tp->tg3_flags2 & TG3_FLG2_5750_PLUS))
13283                 tp->tg3_flags2 |= TG3_FLG2_5705_PLUS;
13284
13285         /* 5700 B0 chips do not support checksumming correctly due
13286          * to hardware bugs.
13287          */
13288         if (tp->pci_chip_rev_id == CHIPREV_ID_5700_B0)
13289                 tp->tg3_flags |= TG3_FLAG_BROKEN_CHECKSUMS;
13290         else {
13291                 unsigned long features = NETIF_F_IP_CSUM | NETIF_F_SG | NETIF_F_GRO;
13292
13293                 tp->tg3_flags |= TG3_FLAG_RX_CHECKSUMS;
13294                 if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
13295                         features |= NETIF_F_IPV6_CSUM;
13296                 tp->dev->features |= features;
13297                 vlan_features_add(tp->dev, features);
13298         }
13299
13300         /* Determine TSO capabilities */
13301         if (tp->tg3_flags3 & TG3_FLG3_5717_PLUS)
13302                 tp->tg3_flags2 |= TG3_FLG2_HW_TSO_3;
13303         else if ((tp->tg3_flags3 & TG3_FLG3_5755_PLUS) ||
13304                  GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
13305                 tp->tg3_flags2 |= TG3_FLG2_HW_TSO_2;
13306         else if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) {
13307                 tp->tg3_flags2 |= TG3_FLG2_HW_TSO_1 | TG3_FLG2_TSO_BUG;
13308                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750 &&
13309                     tp->pci_chip_rev_id >= CHIPREV_ID_5750_C2)
13310                         tp->tg3_flags2 &= ~TG3_FLG2_TSO_BUG;
13311         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
13312                    GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701 &&
13313                    tp->pci_chip_rev_id != CHIPREV_ID_5705_A0) {
13314                 tp->tg3_flags2 |= TG3_FLG2_TSO_BUG;
13315                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705)
13316                         tp->fw_needed = FIRMWARE_TG3TSO5;
13317                 else
13318                         tp->fw_needed = FIRMWARE_TG3TSO;
13319         }
13320
13321         tp->irq_max = 1;
13322
13323         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) {
13324                 tp->tg3_flags |= TG3_FLAG_SUPPORT_MSI;
13325                 if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_AX ||
13326                     GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_BX ||
13327                     (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714 &&
13328                      tp->pci_chip_rev_id <= CHIPREV_ID_5714_A2 &&
13329                      tp->pdev_peer == tp->pdev))
13330                         tp->tg3_flags &= ~TG3_FLAG_SUPPORT_MSI;
13331
13332                 if ((tp->tg3_flags3 & TG3_FLG3_5755_PLUS) ||
13333                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
13334                         tp->tg3_flags2 |= TG3_FLG2_1SHOT_MSI;
13335                 }
13336
13337                 if (tp->tg3_flags3 & TG3_FLG3_5717_PLUS) {
13338                         tp->tg3_flags |= TG3_FLAG_SUPPORT_MSIX;
13339                         tp->irq_max = TG3_IRQ_MAX_VECS;
13340                 }
13341         }
13342
13343         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
13344             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719 ||
13345             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
13346                 tp->tg3_flags3 |= TG3_FLG3_SHORT_DMA_BUG;
13347         else if (!(tp->tg3_flags3 & TG3_FLG3_5755_PLUS)) {
13348                 tp->tg3_flags3 |= TG3_FLG3_4G_DMA_BNDRY_BUG;
13349                 tp->tg3_flags3 |= TG3_FLG3_40BIT_DMA_LIMIT_BUG;
13350         }
13351
13352         if (tp->tg3_flags3 & TG3_FLG3_5717_PLUS)
13353                 tp->tg3_flags3 |= TG3_FLG3_USE_JUMBO_BDFLAG;
13354
13355         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ||
13356             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) ||
13357             (tp->tg3_flags3 & TG3_FLG3_USE_JUMBO_BDFLAG))
13358                 tp->tg3_flags |= TG3_FLAG_JUMBO_CAPABLE;
13359
13360         pci_read_config_dword(tp->pdev, TG3PCI_PCISTATE,
13361                               &pci_state_reg);
13362
13363         tp->pcie_cap = pci_find_capability(tp->pdev, PCI_CAP_ID_EXP);
13364         if (tp->pcie_cap != 0) {
13365                 u16 lnkctl;
13366
13367                 tp->tg3_flags2 |= TG3_FLG2_PCI_EXPRESS;
13368
13369                 tp->pcie_readrq = 4096;
13370                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719) {
13371                         u16 word;
13372
13373                         pci_read_config_word(tp->pdev,
13374                                              tp->pcie_cap + PCI_EXP_LNKSTA,
13375                                              &word);
13376                         switch (word & PCI_EXP_LNKSTA_CLS) {
13377                         case PCI_EXP_LNKSTA_CLS_2_5GB:
13378                                 word &= PCI_EXP_LNKSTA_NLW;
13379                                 word >>= PCI_EXP_LNKSTA_NLW_SHIFT;
13380                                 switch (word) {
13381                                 case 2:
13382                                         tp->pcie_readrq = 2048;
13383                                         break;
13384                                 case 4:
13385                                         tp->pcie_readrq = 1024;
13386                                         break;
13387                                 }
13388                                 break;
13389
13390                         case PCI_EXP_LNKSTA_CLS_5_0GB:
13391                                 word &= PCI_EXP_LNKSTA_NLW;
13392                                 word >>= PCI_EXP_LNKSTA_NLW_SHIFT;
13393                                 switch (word) {
13394                                 case 1:
13395                                         tp->pcie_readrq = 2048;
13396                                         break;
13397                                 case 2:
13398                                         tp->pcie_readrq = 1024;
13399                                         break;
13400                                 case 4:
13401                                         tp->pcie_readrq = 512;
13402                                         break;
13403                                 }
13404                         }
13405                 }
13406
13407                 pcie_set_readrq(tp->pdev, tp->pcie_readrq);
13408
13409                 pci_read_config_word(tp->pdev,
13410                                      tp->pcie_cap + PCI_EXP_LNKCTL,
13411                                      &lnkctl);
13412                 if (lnkctl & PCI_EXP_LNKCTL_CLKREQ_EN) {
13413                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
13414                                 tp->tg3_flags2 &= ~TG3_FLG2_HW_TSO_2;
13415                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
13416                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
13417                             tp->pci_chip_rev_id == CHIPREV_ID_57780_A0 ||
13418                             tp->pci_chip_rev_id == CHIPREV_ID_57780_A1)
13419                                 tp->tg3_flags3 |= TG3_FLG3_CLKREQ_BUG;
13420                 } else if (tp->pci_chip_rev_id == CHIPREV_ID_5717_A0) {
13421                         tp->tg3_flags3 |= TG3_FLG3_L1PLLPD_EN;
13422                 }
13423         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785) {
13424                 tp->tg3_flags2 |= TG3_FLG2_PCI_EXPRESS;
13425         } else if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ||
13426                    (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
13427                 tp->pcix_cap = pci_find_capability(tp->pdev, PCI_CAP_ID_PCIX);
13428                 if (!tp->pcix_cap) {
13429                         dev_err(&tp->pdev->dev,
13430                                 "Cannot find PCI-X capability, aborting\n");
13431                         return -EIO;
13432                 }
13433
13434                 if (!(pci_state_reg & PCISTATE_CONV_PCI_MODE))
13435                         tp->tg3_flags |= TG3_FLAG_PCIX_MODE;
13436         }
13437
13438         /* If we have an AMD 762 or VIA K8T800 chipset, write
13439          * reordering to the mailbox registers done by the host
13440          * controller can cause major troubles.  We read back from
13441          * every mailbox register write to force the writes to be
13442          * posted to the chip in order.
13443          */
13444         if (pci_dev_present(write_reorder_chipsets) &&
13445             !(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS))
13446                 tp->tg3_flags |= TG3_FLAG_MBOX_WRITE_REORDER;
13447
13448         pci_read_config_byte(tp->pdev, PCI_CACHE_LINE_SIZE,
13449                              &tp->pci_cacheline_sz);
13450         pci_read_config_byte(tp->pdev, PCI_LATENCY_TIMER,
13451                              &tp->pci_lat_timer);
13452         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 &&
13453             tp->pci_lat_timer < 64) {
13454                 tp->pci_lat_timer = 64;
13455                 pci_write_config_byte(tp->pdev, PCI_LATENCY_TIMER,
13456                                       tp->pci_lat_timer);
13457         }
13458
13459         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5700_BX) {
13460                 /* 5700 BX chips need to have their TX producer index
13461                  * mailboxes written twice to workaround a bug.
13462                  */
13463                 tp->tg3_flags |= TG3_FLAG_TXD_MBOX_HWBUG;
13464
13465                 /* If we are in PCI-X mode, enable register write workaround.
13466                  *
13467                  * The workaround is to use indirect register accesses
13468                  * for all chip writes not to mailbox registers.
13469                  */
13470                 if (tp->tg3_flags & TG3_FLAG_PCIX_MODE) {
13471                         u32 pm_reg;
13472
13473                         tp->tg3_flags |= TG3_FLAG_PCIX_TARGET_HWBUG;
13474
13475                         /* The chip can have it's power management PCI config
13476                          * space registers clobbered due to this bug.
13477                          * So explicitly force the chip into D0 here.
13478                          */
13479                         pci_read_config_dword(tp->pdev,
13480                                               tp->pm_cap + PCI_PM_CTRL,
13481                                               &pm_reg);
13482                         pm_reg &= ~PCI_PM_CTRL_STATE_MASK;
13483                         pm_reg |= PCI_PM_CTRL_PME_ENABLE | 0 /* D0 */;
13484                         pci_write_config_dword(tp->pdev,
13485                                                tp->pm_cap + PCI_PM_CTRL,
13486                                                pm_reg);
13487
13488                         /* Also, force SERR#/PERR# in PCI command. */
13489                         pci_read_config_word(tp->pdev, PCI_COMMAND, &pci_cmd);
13490                         pci_cmd |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
13491                         pci_write_config_word(tp->pdev, PCI_COMMAND, pci_cmd);
13492                 }
13493         }
13494
13495         if ((pci_state_reg & PCISTATE_BUS_SPEED_HIGH) != 0)
13496                 tp->tg3_flags |= TG3_FLAG_PCI_HIGH_SPEED;
13497         if ((pci_state_reg & PCISTATE_BUS_32BIT) != 0)
13498                 tp->tg3_flags |= TG3_FLAG_PCI_32BIT;
13499
13500         /* Chip-specific fixup from Broadcom driver */
13501         if ((tp->pci_chip_rev_id == CHIPREV_ID_5704_A0) &&
13502             (!(pci_state_reg & PCISTATE_RETRY_SAME_DMA))) {
13503                 pci_state_reg |= PCISTATE_RETRY_SAME_DMA;
13504                 pci_write_config_dword(tp->pdev, TG3PCI_PCISTATE, pci_state_reg);
13505         }
13506
13507         /* Default fast path register access methods */
13508         tp->read32 = tg3_read32;
13509         tp->write32 = tg3_write32;
13510         tp->read32_mbox = tg3_read32;
13511         tp->write32_mbox = tg3_write32;
13512         tp->write32_tx_mbox = tg3_write32;
13513         tp->write32_rx_mbox = tg3_write32;
13514
13515         /* Various workaround register access methods */
13516         if (tp->tg3_flags & TG3_FLAG_PCIX_TARGET_HWBUG)
13517                 tp->write32 = tg3_write_indirect_reg32;
13518         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701 ||
13519                  ((tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) &&
13520                   tp->pci_chip_rev_id == CHIPREV_ID_5750_A0)) {
13521                 /*
13522                  * Back to back register writes can cause problems on these
13523                  * chips, the workaround is to read back all reg writes
13524                  * except those to mailbox regs.
13525                  *
13526                  * See tg3_write_indirect_reg32().
13527                  */
13528                 tp->write32 = tg3_write_flush_reg32;
13529         }
13530
13531         if ((tp->tg3_flags & TG3_FLAG_TXD_MBOX_HWBUG) ||
13532             (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)) {
13533                 tp->write32_tx_mbox = tg3_write32_tx_mbox;
13534                 if (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)
13535                         tp->write32_rx_mbox = tg3_write_flush_reg32;
13536         }
13537
13538         if (tp->tg3_flags2 & TG3_FLG2_ICH_WORKAROUND) {
13539                 tp->read32 = tg3_read_indirect_reg32;
13540                 tp->write32 = tg3_write_indirect_reg32;
13541                 tp->read32_mbox = tg3_read_indirect_mbox;
13542                 tp->write32_mbox = tg3_write_indirect_mbox;
13543                 tp->write32_tx_mbox = tg3_write_indirect_mbox;
13544                 tp->write32_rx_mbox = tg3_write_indirect_mbox;
13545
13546                 iounmap(tp->regs);
13547                 tp->regs = NULL;
13548
13549                 pci_read_config_word(tp->pdev, PCI_COMMAND, &pci_cmd);
13550                 pci_cmd &= ~PCI_COMMAND_MEMORY;
13551                 pci_write_config_word(tp->pdev, PCI_COMMAND, pci_cmd);
13552         }
13553         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
13554                 tp->read32_mbox = tg3_read32_mbox_5906;
13555                 tp->write32_mbox = tg3_write32_mbox_5906;
13556                 tp->write32_tx_mbox = tg3_write32_mbox_5906;
13557                 tp->write32_rx_mbox = tg3_write32_mbox_5906;
13558         }
13559
13560         if (tp->write32 == tg3_write_indirect_reg32 ||
13561             ((tp->tg3_flags & TG3_FLAG_PCIX_MODE) &&
13562              (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
13563               GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)))
13564                 tp->tg3_flags |= TG3_FLAG_SRAM_USE_CONFIG;
13565
13566         /* Get eeprom hw config before calling tg3_set_power_state().
13567          * In particular, the TG3_FLG2_IS_NIC flag must be
13568          * determined before calling tg3_set_power_state() so that
13569          * we know whether or not to switch out of Vaux power.
13570          * When the flag is set, it means that GPIO1 is used for eeprom
13571          * write protect and also implies that it is a LOM where GPIOs
13572          * are not used to switch power.
13573          */
13574         tg3_get_eeprom_hw_cfg(tp);
13575
13576         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
13577                 /* Allow reads and writes to the
13578                  * APE register and memory space.
13579                  */
13580                 pci_state_reg |= PCISTATE_ALLOW_APE_CTLSPC_WR |
13581                                  PCISTATE_ALLOW_APE_SHMEM_WR |
13582                                  PCISTATE_ALLOW_APE_PSPACE_WR;
13583                 pci_write_config_dword(tp->pdev, TG3PCI_PCISTATE,
13584                                        pci_state_reg);
13585         }
13586
13587         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
13588             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
13589             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
13590             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 ||
13591             (tp->tg3_flags3 & TG3_FLG3_5717_PLUS))
13592                 tp->tg3_flags |= TG3_FLAG_CPMU_PRESENT;
13593
13594         /* Set up tp->grc_local_ctrl before calling tg3_set_power_state().
13595          * GPIO1 driven high will bring 5700's external PHY out of reset.
13596          * It is also used as eeprom write protect on LOMs.
13597          */
13598         tp->grc_local_ctrl = GRC_LCLCTRL_INT_ON_ATTN | GRC_LCLCTRL_AUTO_SEEPROM;
13599         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) ||
13600             (tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT))
13601                 tp->grc_local_ctrl |= (GRC_LCLCTRL_GPIO_OE1 |
13602                                        GRC_LCLCTRL_GPIO_OUTPUT1);
13603         /* Unused GPIO3 must be driven as output on 5752 because there
13604          * are no pull-up resistors on unused GPIO pins.
13605          */
13606         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752)
13607                 tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE3;
13608
13609         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 ||
13610             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 ||
13611             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
13612                 tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_UART_SEL;
13613
13614         if (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5761 ||
13615             tp->pdev->device == TG3PCI_DEVICE_TIGON3_5761S) {
13616                 /* Turn off the debug UART. */
13617                 tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_UART_SEL;
13618                 if (tp->tg3_flags2 & TG3_FLG2_IS_NIC)
13619                         /* Keep VMain power. */
13620                         tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE0 |
13621                                               GRC_LCLCTRL_GPIO_OUTPUT0;
13622         }
13623
13624         /* Force the chip into D0. */
13625         err = tg3_set_power_state(tp, PCI_D0);
13626         if (err) {
13627                 dev_err(&tp->pdev->dev, "Transition to D0 failed\n");
13628                 return err;
13629         }
13630
13631         /* Derive initial jumbo mode from MTU assigned in
13632          * ether_setup() via the alloc_etherdev() call
13633          */
13634         if (tp->dev->mtu > ETH_DATA_LEN &&
13635             !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
13636                 tp->tg3_flags |= TG3_FLAG_JUMBO_RING_ENABLE;
13637
13638         /* Determine WakeOnLan speed to use. */
13639         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
13640             tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
13641             tp->pci_chip_rev_id == CHIPREV_ID_5701_B0 ||
13642             tp->pci_chip_rev_id == CHIPREV_ID_5701_B2) {
13643                 tp->tg3_flags &= ~(TG3_FLAG_WOL_SPEED_100MB);
13644         } else {
13645                 tp->tg3_flags |= TG3_FLAG_WOL_SPEED_100MB;
13646         }
13647
13648         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
13649                 tp->phy_flags |= TG3_PHYFLG_IS_FET;
13650
13651         /* A few boards don't want Ethernet@WireSpeed phy feature */
13652         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) ||
13653             ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) &&
13654              (tp->pci_chip_rev_id != CHIPREV_ID_5705_A0) &&
13655              (tp->pci_chip_rev_id != CHIPREV_ID_5705_A1)) ||
13656             (tp->phy_flags & TG3_PHYFLG_IS_FET) ||
13657             (tp->phy_flags & TG3_PHYFLG_ANY_SERDES))
13658                 tp->phy_flags |= TG3_PHYFLG_NO_ETH_WIRE_SPEED;
13659
13660         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5703_AX ||
13661             GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5704_AX)
13662                 tp->phy_flags |= TG3_PHYFLG_ADC_BUG;
13663         if (tp->pci_chip_rev_id == CHIPREV_ID_5704_A0)
13664                 tp->phy_flags |= TG3_PHYFLG_5704_A0_BUG;
13665
13666         if ((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
13667             !(tp->phy_flags & TG3_PHYFLG_IS_FET) &&
13668             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785 &&
13669             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_57780 &&
13670             !(tp->tg3_flags3 & TG3_FLG3_5717_PLUS)) {
13671                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 ||
13672                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5787 ||
13673                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
13674                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761) {
13675                         if (tp->pdev->device != PCI_DEVICE_ID_TIGON3_5756 &&
13676                             tp->pdev->device != PCI_DEVICE_ID_TIGON3_5722)
13677                                 tp->phy_flags |= TG3_PHYFLG_JITTER_BUG;
13678                         if (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5755M)
13679                                 tp->phy_flags |= TG3_PHYFLG_ADJUST_TRIM;
13680                 } else
13681                         tp->phy_flags |= TG3_PHYFLG_BER_BUG;
13682         }
13683
13684         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
13685             GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) {
13686                 tp->phy_otp = tg3_read_otp_phycfg(tp);
13687                 if (tp->phy_otp == 0)
13688                         tp->phy_otp = TG3_OTP_DEFAULT;
13689         }
13690
13691         if (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT)
13692                 tp->mi_mode = MAC_MI_MODE_500KHZ_CONST;
13693         else
13694                 tp->mi_mode = MAC_MI_MODE_BASE;
13695
13696         tp->coalesce_mode = 0;
13697         if (GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5700_AX &&
13698             GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5700_BX)
13699                 tp->coalesce_mode |= HOSTCC_MODE_32BYTE;
13700
13701         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
13702             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
13703                 tp->tg3_flags3 |= TG3_FLG3_USE_PHYLIB;
13704
13705         err = tg3_mdio_init(tp);
13706         if (err)
13707                 return err;
13708
13709         /* Initialize data/descriptor byte/word swapping. */
13710         val = tr32(GRC_MODE);
13711         val &= GRC_MODE_HOST_STACKUP;
13712         tw32(GRC_MODE, val | tp->grc_mode);
13713
13714         tg3_switch_clocks(tp);
13715
13716         /* Clear this out for sanity. */
13717         tw32(TG3PCI_MEM_WIN_BASE_ADDR, 0);
13718
13719         pci_read_config_dword(tp->pdev, TG3PCI_PCISTATE,
13720                               &pci_state_reg);
13721         if ((pci_state_reg & PCISTATE_CONV_PCI_MODE) == 0 &&
13722             (tp->tg3_flags & TG3_FLAG_PCIX_TARGET_HWBUG) == 0) {
13723                 u32 chiprevid = GET_CHIP_REV_ID(tp->misc_host_ctrl);
13724
13725                 if (chiprevid == CHIPREV_ID_5701_A0 ||
13726                     chiprevid == CHIPREV_ID_5701_B0 ||
13727                     chiprevid == CHIPREV_ID_5701_B2 ||
13728                     chiprevid == CHIPREV_ID_5701_B5) {
13729                         void __iomem *sram_base;
13730
13731                         /* Write some dummy words into the SRAM status block
13732                          * area, see if it reads back correctly.  If the return
13733                          * value is bad, force enable the PCIX workaround.
13734                          */
13735                         sram_base = tp->regs + NIC_SRAM_WIN_BASE + NIC_SRAM_STATS_BLK;
13736
13737                         writel(0x00000000, sram_base);
13738                         writel(0x00000000, sram_base + 4);
13739                         writel(0xffffffff, sram_base + 4);
13740                         if (readl(sram_base) != 0x00000000)
13741                                 tp->tg3_flags |= TG3_FLAG_PCIX_TARGET_HWBUG;
13742                 }
13743         }
13744
13745         udelay(50);
13746         tg3_nvram_init(tp);
13747
13748         grc_misc_cfg = tr32(GRC_MISC_CFG);
13749         grc_misc_cfg &= GRC_MISC_CFG_BOARD_ID_MASK;
13750
13751         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 &&
13752             (grc_misc_cfg == GRC_MISC_CFG_BOARD_ID_5788 ||
13753              grc_misc_cfg == GRC_MISC_CFG_BOARD_ID_5788M))
13754                 tp->tg3_flags2 |= TG3_FLG2_IS_5788;
13755
13756         if (!(tp->tg3_flags2 & TG3_FLG2_IS_5788) &&
13757             (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700))
13758                 tp->tg3_flags |= TG3_FLAG_TAGGED_STATUS;
13759         if (tp->tg3_flags & TG3_FLAG_TAGGED_STATUS) {
13760                 tp->coalesce_mode |= (HOSTCC_MODE_CLRTICK_RXBD |
13761                                       HOSTCC_MODE_CLRTICK_TXBD);
13762
13763                 tp->misc_host_ctrl |= MISC_HOST_CTRL_TAGGED_STATUS;
13764                 pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
13765                                        tp->misc_host_ctrl);
13766         }
13767
13768         /* Preserve the APE MAC_MODE bits */
13769         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
13770                 tp->mac_mode = MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN;
13771         else
13772                 tp->mac_mode = TG3_DEF_MAC_MODE;
13773
13774         /* these are limited to 10/100 only */
13775         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 &&
13776              (grc_misc_cfg == 0x8000 || grc_misc_cfg == 0x4000)) ||
13777             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 &&
13778              tp->pdev->vendor == PCI_VENDOR_ID_BROADCOM &&
13779              (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5901 ||
13780               tp->pdev->device == PCI_DEVICE_ID_TIGON3_5901_2 ||
13781               tp->pdev->device == PCI_DEVICE_ID_TIGON3_5705F)) ||
13782             (tp->pdev->vendor == PCI_VENDOR_ID_BROADCOM &&
13783              (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5751F ||
13784               tp->pdev->device == PCI_DEVICE_ID_TIGON3_5753F ||
13785               tp->pdev->device == PCI_DEVICE_ID_TIGON3_5787F)) ||
13786             tp->pdev->device == TG3PCI_DEVICE_TIGON3_57790 ||
13787             tp->pdev->device == TG3PCI_DEVICE_TIGON3_57791 ||
13788             tp->pdev->device == TG3PCI_DEVICE_TIGON3_57795 ||
13789             (tp->phy_flags & TG3_PHYFLG_IS_FET))
13790                 tp->phy_flags |= TG3_PHYFLG_10_100_ONLY;
13791
13792         err = tg3_phy_probe(tp);
13793         if (err) {
13794                 dev_err(&tp->pdev->dev, "phy probe failed, err %d\n", err);
13795                 /* ... but do not return immediately ... */
13796                 tg3_mdio_fini(tp);
13797         }
13798
13799         tg3_read_vpd(tp);
13800         tg3_read_fw_ver(tp);
13801
13802         if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES) {
13803                 tp->phy_flags &= ~TG3_PHYFLG_USE_MI_INTERRUPT;
13804         } else {
13805                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700)
13806                         tp->phy_flags |= TG3_PHYFLG_USE_MI_INTERRUPT;
13807                 else
13808                         tp->phy_flags &= ~TG3_PHYFLG_USE_MI_INTERRUPT;
13809         }
13810
13811         /* 5700 {AX,BX} chips have a broken status block link
13812          * change bit implementation, so we must use the
13813          * status register in those cases.
13814          */
13815         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700)
13816                 tp->tg3_flags |= TG3_FLAG_USE_LINKCHG_REG;
13817         else
13818                 tp->tg3_flags &= ~TG3_FLAG_USE_LINKCHG_REG;
13819
13820         /* The led_ctrl is set during tg3_phy_probe, here we might
13821          * have to force the link status polling mechanism based
13822          * upon subsystem IDs.
13823          */
13824         if (tp->pdev->subsystem_vendor == PCI_VENDOR_ID_DELL &&
13825             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701 &&
13826             !(tp->phy_flags & TG3_PHYFLG_PHY_SERDES)) {
13827                 tp->phy_flags |= TG3_PHYFLG_USE_MI_INTERRUPT;
13828                 tp->tg3_flags |= TG3_FLAG_USE_LINKCHG_REG;
13829         }
13830
13831         /* For all SERDES we poll the MAC status register. */
13832         if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES)
13833                 tp->tg3_flags |= TG3_FLAG_POLL_SERDES;
13834         else
13835                 tp->tg3_flags &= ~TG3_FLAG_POLL_SERDES;
13836
13837         tp->rx_offset = NET_IP_ALIGN + TG3_RX_HEADROOM;
13838         tp->rx_copy_thresh = TG3_RX_COPY_THRESHOLD;
13839         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701 &&
13840             (tp->tg3_flags & TG3_FLAG_PCIX_MODE) != 0) {
13841                 tp->rx_offset -= NET_IP_ALIGN;
13842 #ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
13843                 tp->rx_copy_thresh = ~(u16)0;
13844 #endif
13845         }
13846
13847         tp->rx_std_ring_mask = TG3_RX_STD_RING_SIZE(tp) - 1;
13848         tp->rx_jmb_ring_mask = TG3_RX_JMB_RING_SIZE(tp) - 1;
13849         tp->rx_ret_ring_mask = tg3_rx_ret_ring_size(tp) - 1;
13850
13851         tp->rx_std_max_post = tp->rx_std_ring_mask + 1;
13852
13853         /* Increment the rx prod index on the rx std ring by at most
13854          * 8 for these chips to workaround hw errata.
13855          */
13856         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750 ||
13857             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752 ||
13858             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755)
13859                 tp->rx_std_max_post = 8;
13860
13861         if (tp->tg3_flags & TG3_FLAG_ASPM_WORKAROUND)
13862                 tp->pwrmgmt_thresh = tr32(PCIE_PWR_MGMT_THRESH) &
13863                                      PCIE_PWR_MGMT_L1_THRESH_MSK;
13864
13865         return err;
13866 }
13867
13868 #ifdef CONFIG_SPARC
13869 static int __devinit tg3_get_macaddr_sparc(struct tg3 *tp)
13870 {
13871         struct net_device *dev = tp->dev;
13872         struct pci_dev *pdev = tp->pdev;
13873         struct device_node *dp = pci_device_to_OF_node(pdev);
13874         const unsigned char *addr;
13875         int len;
13876
13877         addr = of_get_property(dp, "local-mac-address", &len);
13878         if (addr && len == 6) {
13879                 memcpy(dev->dev_addr, addr, 6);
13880                 memcpy(dev->perm_addr, dev->dev_addr, 6);
13881                 return 0;
13882         }
13883         return -ENODEV;
13884 }
13885
13886 static int __devinit tg3_get_default_macaddr_sparc(struct tg3 *tp)
13887 {
13888         struct net_device *dev = tp->dev;
13889
13890         memcpy(dev->dev_addr, idprom->id_ethaddr, 6);
13891         memcpy(dev->perm_addr, idprom->id_ethaddr, 6);
13892         return 0;
13893 }
13894 #endif
13895
13896 static int __devinit tg3_get_device_address(struct tg3 *tp)
13897 {
13898         struct net_device *dev = tp->dev;
13899         u32 hi, lo, mac_offset;
13900         int addr_ok = 0;
13901
13902 #ifdef CONFIG_SPARC
13903         if (!tg3_get_macaddr_sparc(tp))
13904                 return 0;
13905 #endif
13906
13907         mac_offset = 0x7c;
13908         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) ||
13909             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
13910                 if (tr32(TG3PCI_DUAL_MAC_CTRL) & DUAL_MAC_CTRL_ID)
13911                         mac_offset = 0xcc;
13912                 if (tg3_nvram_lock(tp))
13913                         tw32_f(NVRAM_CMD, NVRAM_CMD_RESET);
13914                 else
13915                         tg3_nvram_unlock(tp);
13916         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
13917                    GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719) {
13918                 if (PCI_FUNC(tp->pdev->devfn) & 1)
13919                         mac_offset = 0xcc;
13920                 if (PCI_FUNC(tp->pdev->devfn) > 1)
13921                         mac_offset += 0x18c;
13922         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
13923                 mac_offset = 0x10;
13924
13925         /* First try to get it from MAC address mailbox. */
13926         tg3_read_mem(tp, NIC_SRAM_MAC_ADDR_HIGH_MBOX, &hi);
13927         if ((hi >> 16) == 0x484b) {
13928                 dev->dev_addr[0] = (hi >>  8) & 0xff;
13929                 dev->dev_addr[1] = (hi >>  0) & 0xff;
13930
13931                 tg3_read_mem(tp, NIC_SRAM_MAC_ADDR_LOW_MBOX, &lo);
13932                 dev->dev_addr[2] = (lo >> 24) & 0xff;
13933                 dev->dev_addr[3] = (lo >> 16) & 0xff;
13934                 dev->dev_addr[4] = (lo >>  8) & 0xff;
13935                 dev->dev_addr[5] = (lo >>  0) & 0xff;
13936
13937                 /* Some old bootcode may report a 0 MAC address in SRAM */
13938                 addr_ok = is_valid_ether_addr(&dev->dev_addr[0]);
13939         }
13940         if (!addr_ok) {
13941                 /* Next, try NVRAM. */
13942                 if (!(tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) &&
13943                     !tg3_nvram_read_be32(tp, mac_offset + 0, &hi) &&
13944                     !tg3_nvram_read_be32(tp, mac_offset + 4, &lo)) {
13945                         memcpy(&dev->dev_addr[0], ((char *)&hi) + 2, 2);
13946                         memcpy(&dev->dev_addr[2], (char *)&lo, sizeof(lo));
13947                 }
13948                 /* Finally just fetch it out of the MAC control regs. */
13949                 else {
13950                         hi = tr32(MAC_ADDR_0_HIGH);
13951                         lo = tr32(MAC_ADDR_0_LOW);
13952
13953                         dev->dev_addr[5] = lo & 0xff;
13954                         dev->dev_addr[4] = (lo >> 8) & 0xff;
13955                         dev->dev_addr[3] = (lo >> 16) & 0xff;
13956                         dev->dev_addr[2] = (lo >> 24) & 0xff;
13957                         dev->dev_addr[1] = hi & 0xff;
13958                         dev->dev_addr[0] = (hi >> 8) & 0xff;
13959                 }
13960         }
13961
13962         if (!is_valid_ether_addr(&dev->dev_addr[0])) {
13963 #ifdef CONFIG_SPARC
13964                 if (!tg3_get_default_macaddr_sparc(tp))
13965                         return 0;
13966 #endif
13967                 return -EINVAL;
13968         }
13969         memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
13970         return 0;
13971 }
13972
13973 #define BOUNDARY_SINGLE_CACHELINE       1
13974 #define BOUNDARY_MULTI_CACHELINE        2
13975
13976 static u32 __devinit tg3_calc_dma_bndry(struct tg3 *tp, u32 val)
13977 {
13978         int cacheline_size;
13979         u8 byte;
13980         int goal;
13981
13982         pci_read_config_byte(tp->pdev, PCI_CACHE_LINE_SIZE, &byte);
13983         if (byte == 0)
13984                 cacheline_size = 1024;
13985         else
13986                 cacheline_size = (int) byte * 4;
13987
13988         /* On 5703 and later chips, the boundary bits have no
13989          * effect.
13990          */
13991         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
13992             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701 &&
13993             !(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS))
13994                 goto out;
13995
13996 #if defined(CONFIG_PPC64) || defined(CONFIG_IA64) || defined(CONFIG_PARISC)
13997         goal = BOUNDARY_MULTI_CACHELINE;
13998 #else
13999 #if defined(CONFIG_SPARC64) || defined(CONFIG_ALPHA)
14000         goal = BOUNDARY_SINGLE_CACHELINE;
14001 #else
14002         goal = 0;
14003 #endif
14004 #endif
14005
14006         if (tp->tg3_flags3 & TG3_FLG3_5717_PLUS) {
14007                 val = goal ? 0 : DMA_RWCTRL_DIS_CACHE_ALIGNMENT;
14008                 goto out;
14009         }
14010
14011         if (!goal)
14012                 goto out;
14013
14014         /* PCI controllers on most RISC systems tend to disconnect
14015          * when a device tries to burst across a cache-line boundary.
14016          * Therefore, letting tg3 do so just wastes PCI bandwidth.
14017          *
14018          * Unfortunately, for PCI-E there are only limited
14019          * write-side controls for this, and thus for reads
14020          * we will still get the disconnects.  We'll also waste
14021          * these PCI cycles for both read and write for chips
14022          * other than 5700 and 5701 which do not implement the
14023          * boundary bits.
14024          */
14025         if ((tp->tg3_flags & TG3_FLAG_PCIX_MODE) &&
14026             !(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS)) {
14027                 switch (cacheline_size) {
14028                 case 16:
14029                 case 32:
14030                 case 64:
14031                 case 128:
14032                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
14033                                 val |= (DMA_RWCTRL_READ_BNDRY_128_PCIX |
14034                                         DMA_RWCTRL_WRITE_BNDRY_128_PCIX);
14035                         } else {
14036                                 val |= (DMA_RWCTRL_READ_BNDRY_384_PCIX |
14037                                         DMA_RWCTRL_WRITE_BNDRY_384_PCIX);
14038                         }
14039                         break;
14040
14041                 case 256:
14042                         val |= (DMA_RWCTRL_READ_BNDRY_256_PCIX |
14043                                 DMA_RWCTRL_WRITE_BNDRY_256_PCIX);
14044                         break;
14045
14046                 default:
14047                         val |= (DMA_RWCTRL_READ_BNDRY_384_PCIX |
14048                                 DMA_RWCTRL_WRITE_BNDRY_384_PCIX);
14049                         break;
14050                 }
14051         } else if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
14052                 switch (cacheline_size) {
14053                 case 16:
14054                 case 32:
14055                 case 64:
14056                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
14057                                 val &= ~DMA_RWCTRL_WRITE_BNDRY_DISAB_PCIE;
14058                                 val |= DMA_RWCTRL_WRITE_BNDRY_64_PCIE;
14059                                 break;
14060                         }
14061                         /* fallthrough */
14062                 case 128:
14063                 default:
14064                         val &= ~DMA_RWCTRL_WRITE_BNDRY_DISAB_PCIE;
14065                         val |= DMA_RWCTRL_WRITE_BNDRY_128_PCIE;
14066                         break;
14067                 }
14068         } else {
14069                 switch (cacheline_size) {
14070                 case 16:
14071                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
14072                                 val |= (DMA_RWCTRL_READ_BNDRY_16 |
14073                                         DMA_RWCTRL_WRITE_BNDRY_16);
14074                                 break;
14075                         }
14076                         /* fallthrough */
14077                 case 32:
14078                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
14079                                 val |= (DMA_RWCTRL_READ_BNDRY_32 |
14080                                         DMA_RWCTRL_WRITE_BNDRY_32);
14081                                 break;
14082                         }
14083                         /* fallthrough */
14084                 case 64:
14085                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
14086                                 val |= (DMA_RWCTRL_READ_BNDRY_64 |
14087                                         DMA_RWCTRL_WRITE_BNDRY_64);
14088                                 break;
14089                         }
14090                         /* fallthrough */
14091                 case 128:
14092                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
14093                                 val |= (DMA_RWCTRL_READ_BNDRY_128 |
14094                                         DMA_RWCTRL_WRITE_BNDRY_128);
14095                                 break;
14096                         }
14097                         /* fallthrough */
14098                 case 256:
14099                         val |= (DMA_RWCTRL_READ_BNDRY_256 |
14100                                 DMA_RWCTRL_WRITE_BNDRY_256);
14101                         break;
14102                 case 512:
14103                         val |= (DMA_RWCTRL_READ_BNDRY_512 |
14104                                 DMA_RWCTRL_WRITE_BNDRY_512);
14105                         break;
14106                 case 1024:
14107                 default:
14108                         val |= (DMA_RWCTRL_READ_BNDRY_1024 |
14109                                 DMA_RWCTRL_WRITE_BNDRY_1024);
14110                         break;
14111                 }
14112         }
14113
14114 out:
14115         return val;
14116 }
14117
14118 static int __devinit tg3_do_test_dma(struct tg3 *tp, u32 *buf, dma_addr_t buf_dma, int size, int to_device)
14119 {
14120         struct tg3_internal_buffer_desc test_desc;
14121         u32 sram_dma_descs;
14122         int i, ret;
14123
14124         sram_dma_descs = NIC_SRAM_DMA_DESC_POOL_BASE;
14125
14126         tw32(FTQ_RCVBD_COMP_FIFO_ENQDEQ, 0);
14127         tw32(FTQ_RCVDATA_COMP_FIFO_ENQDEQ, 0);
14128         tw32(RDMAC_STATUS, 0);
14129         tw32(WDMAC_STATUS, 0);
14130
14131         tw32(BUFMGR_MODE, 0);
14132         tw32(FTQ_RESET, 0);
14133
14134         test_desc.addr_hi = ((u64) buf_dma) >> 32;
14135         test_desc.addr_lo = buf_dma & 0xffffffff;
14136         test_desc.nic_mbuf = 0x00002100;
14137         test_desc.len = size;
14138
14139         /*
14140          * HP ZX1 was seeing test failures for 5701 cards running at 33Mhz
14141          * the *second* time the tg3 driver was getting loaded after an
14142          * initial scan.
14143          *
14144          * Broadcom tells me:
14145          *   ...the DMA engine is connected to the GRC block and a DMA
14146          *   reset may affect the GRC block in some unpredictable way...
14147          *   The behavior of resets to individual blocks has not been tested.
14148          *
14149          * Broadcom noted the GRC reset will also reset all sub-components.
14150          */
14151         if (to_device) {
14152                 test_desc.cqid_sqid = (13 << 8) | 2;
14153
14154                 tw32_f(RDMAC_MODE, RDMAC_MODE_ENABLE);
14155                 udelay(40);
14156         } else {
14157                 test_desc.cqid_sqid = (16 << 8) | 7;
14158
14159                 tw32_f(WDMAC_MODE, WDMAC_MODE_ENABLE);
14160                 udelay(40);
14161         }
14162         test_desc.flags = 0x00000005;
14163
14164         for (i = 0; i < (sizeof(test_desc) / sizeof(u32)); i++) {
14165                 u32 val;
14166
14167                 val = *(((u32 *)&test_desc) + i);
14168                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR,
14169                                        sram_dma_descs + (i * sizeof(u32)));
14170                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_DATA, val);
14171         }
14172         pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, 0);
14173
14174         if (to_device)
14175                 tw32(FTQ_DMA_HIGH_READ_FIFO_ENQDEQ, sram_dma_descs);
14176         else
14177                 tw32(FTQ_DMA_HIGH_WRITE_FIFO_ENQDEQ, sram_dma_descs);
14178
14179         ret = -ENODEV;
14180         for (i = 0; i < 40; i++) {
14181                 u32 val;
14182
14183                 if (to_device)
14184                         val = tr32(FTQ_RCVBD_COMP_FIFO_ENQDEQ);
14185                 else
14186                         val = tr32(FTQ_RCVDATA_COMP_FIFO_ENQDEQ);
14187                 if ((val & 0xffff) == sram_dma_descs) {
14188                         ret = 0;
14189                         break;
14190                 }
14191
14192                 udelay(100);
14193         }
14194
14195         return ret;
14196 }
14197
14198 #define TEST_BUFFER_SIZE        0x2000
14199
14200 static int __devinit tg3_test_dma(struct tg3 *tp)
14201 {
14202         dma_addr_t buf_dma;
14203         u32 *buf, saved_dma_rwctrl;
14204         int ret = 0;
14205
14206         buf = pci_alloc_consistent(tp->pdev, TEST_BUFFER_SIZE, &buf_dma);
14207         if (!buf) {
14208                 ret = -ENOMEM;
14209                 goto out_nofree;
14210         }
14211
14212         tp->dma_rwctrl = ((0x7 << DMA_RWCTRL_PCI_WRITE_CMD_SHIFT) |
14213                           (0x6 << DMA_RWCTRL_PCI_READ_CMD_SHIFT));
14214
14215         tp->dma_rwctrl = tg3_calc_dma_bndry(tp, tp->dma_rwctrl);
14216
14217         if (tp->tg3_flags3 & TG3_FLG3_5717_PLUS)
14218                 goto out;
14219
14220         if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
14221                 /* DMA read watermark not used on PCIE */
14222                 tp->dma_rwctrl |= 0x00180000;
14223         } else if (!(tp->tg3_flags & TG3_FLAG_PCIX_MODE)) {
14224                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 ||
14225                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750)
14226                         tp->dma_rwctrl |= 0x003f0000;
14227                 else
14228                         tp->dma_rwctrl |= 0x003f000f;
14229         } else {
14230                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
14231                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
14232                         u32 ccval = (tr32(TG3PCI_CLOCK_CTRL) & 0x1f);
14233                         u32 read_water = 0x7;
14234
14235                         /* If the 5704 is behind the EPB bridge, we can
14236                          * do the less restrictive ONE_DMA workaround for
14237                          * better performance.
14238                          */
14239                         if ((tp->tg3_flags & TG3_FLAG_40BIT_DMA_BUG) &&
14240                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704)
14241                                 tp->dma_rwctrl |= 0x8000;
14242                         else if (ccval == 0x6 || ccval == 0x7)
14243                                 tp->dma_rwctrl |= DMA_RWCTRL_ONE_DMA;
14244
14245                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703)
14246                                 read_water = 4;
14247                         /* Set bit 23 to enable PCIX hw bug fix */
14248                         tp->dma_rwctrl |=
14249                                 (read_water << DMA_RWCTRL_READ_WATER_SHIFT) |
14250                                 (0x3 << DMA_RWCTRL_WRITE_WATER_SHIFT) |
14251                                 (1 << 23);
14252                 } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780) {
14253                         /* 5780 always in PCIX mode */
14254                         tp->dma_rwctrl |= 0x00144000;
14255                 } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714) {
14256                         /* 5714 always in PCIX mode */
14257                         tp->dma_rwctrl |= 0x00148000;
14258                 } else {
14259                         tp->dma_rwctrl |= 0x001b000f;
14260                 }
14261         }
14262
14263         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
14264             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704)
14265                 tp->dma_rwctrl &= 0xfffffff0;
14266
14267         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
14268             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
14269                 /* Remove this if it causes problems for some boards. */
14270                 tp->dma_rwctrl |= DMA_RWCTRL_USE_MEM_READ_MULT;
14271
14272                 /* On 5700/5701 chips, we need to set this bit.
14273                  * Otherwise the chip will issue cacheline transactions
14274                  * to streamable DMA memory with not all the byte
14275                  * enables turned on.  This is an error on several
14276                  * RISC PCI controllers, in particular sparc64.
14277                  *
14278                  * On 5703/5704 chips, this bit has been reassigned
14279                  * a different meaning.  In particular, it is used
14280                  * on those chips to enable a PCI-X workaround.
14281                  */
14282                 tp->dma_rwctrl |= DMA_RWCTRL_ASSERT_ALL_BE;
14283         }
14284
14285         tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
14286
14287 #if 0
14288         /* Unneeded, already done by tg3_get_invariants.  */
14289         tg3_switch_clocks(tp);
14290 #endif
14291
14292         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
14293             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701)
14294                 goto out;
14295
14296         /* It is best to perform DMA test with maximum write burst size
14297          * to expose the 5700/5701 write DMA bug.
14298          */
14299         saved_dma_rwctrl = tp->dma_rwctrl;
14300         tp->dma_rwctrl &= ~DMA_RWCTRL_WRITE_BNDRY_MASK;
14301         tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
14302
14303         while (1) {
14304                 u32 *p = buf, i;
14305
14306                 for (i = 0; i < TEST_BUFFER_SIZE / sizeof(u32); i++)
14307                         p[i] = i;
14308
14309                 /* Send the buffer to the chip. */
14310                 ret = tg3_do_test_dma(tp, buf, buf_dma, TEST_BUFFER_SIZE, 1);
14311                 if (ret) {
14312                         dev_err(&tp->pdev->dev,
14313                                 "%s: Buffer write failed. err = %d\n",
14314                                 __func__, ret);
14315                         break;
14316                 }
14317
14318 #if 0
14319                 /* validate data reached card RAM correctly. */
14320                 for (i = 0; i < TEST_BUFFER_SIZE / sizeof(u32); i++) {
14321                         u32 val;
14322                         tg3_read_mem(tp, 0x2100 + (i*4), &val);
14323                         if (le32_to_cpu(val) != p[i]) {
14324                                 dev_err(&tp->pdev->dev,
14325                                         "%s: Buffer corrupted on device! "
14326                                         "(%d != %d)\n", __func__, val, i);
14327                                 /* ret = -ENODEV here? */
14328                         }
14329                         p[i] = 0;
14330                 }
14331 #endif
14332                 /* Now read it back. */
14333                 ret = tg3_do_test_dma(tp, buf, buf_dma, TEST_BUFFER_SIZE, 0);
14334                 if (ret) {
14335                         dev_err(&tp->pdev->dev, "%s: Buffer read failed. "
14336                                 "err = %d\n", __func__, ret);
14337                         break;
14338                 }
14339
14340                 /* Verify it. */
14341                 for (i = 0; i < TEST_BUFFER_SIZE / sizeof(u32); i++) {
14342                         if (p[i] == i)
14343                                 continue;
14344
14345                         if ((tp->dma_rwctrl & DMA_RWCTRL_WRITE_BNDRY_MASK) !=
14346                             DMA_RWCTRL_WRITE_BNDRY_16) {
14347                                 tp->dma_rwctrl &= ~DMA_RWCTRL_WRITE_BNDRY_MASK;
14348                                 tp->dma_rwctrl |= DMA_RWCTRL_WRITE_BNDRY_16;
14349                                 tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
14350                                 break;
14351                         } else {
14352                                 dev_err(&tp->pdev->dev,
14353                                         "%s: Buffer corrupted on read back! "
14354                                         "(%d != %d)\n", __func__, p[i], i);
14355                                 ret = -ENODEV;
14356                                 goto out;
14357                         }
14358                 }
14359
14360                 if (i == (TEST_BUFFER_SIZE / sizeof(u32))) {
14361                         /* Success. */
14362                         ret = 0;
14363                         break;
14364                 }
14365         }
14366         if ((tp->dma_rwctrl & DMA_RWCTRL_WRITE_BNDRY_MASK) !=
14367             DMA_RWCTRL_WRITE_BNDRY_16) {
14368                 static struct pci_device_id dma_wait_state_chipsets[] = {
14369                         { PCI_DEVICE(PCI_VENDOR_ID_APPLE,
14370                                      PCI_DEVICE_ID_APPLE_UNI_N_PCI15) },
14371                         { },
14372                 };
14373
14374                 /* DMA test passed without adjusting DMA boundary,
14375                  * now look for chipsets that are known to expose the
14376                  * DMA bug without failing the test.
14377                  */
14378                 if (pci_dev_present(dma_wait_state_chipsets)) {
14379                         tp->dma_rwctrl &= ~DMA_RWCTRL_WRITE_BNDRY_MASK;
14380                         tp->dma_rwctrl |= DMA_RWCTRL_WRITE_BNDRY_16;
14381                 } else {
14382                         /* Safe to use the calculated DMA boundary. */
14383                         tp->dma_rwctrl = saved_dma_rwctrl;
14384                 }
14385
14386                 tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
14387         }
14388
14389 out:
14390         pci_free_consistent(tp->pdev, TEST_BUFFER_SIZE, buf, buf_dma);
14391 out_nofree:
14392         return ret;
14393 }
14394
14395 static void __devinit tg3_init_link_config(struct tg3 *tp)
14396 {
14397         tp->link_config.advertising =
14398                 (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full |
14399                  ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full |
14400                  ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full |
14401                  ADVERTISED_Autoneg | ADVERTISED_MII);
14402         tp->link_config.speed = SPEED_INVALID;
14403         tp->link_config.duplex = DUPLEX_INVALID;
14404         tp->link_config.autoneg = AUTONEG_ENABLE;
14405         tp->link_config.active_speed = SPEED_INVALID;
14406         tp->link_config.active_duplex = DUPLEX_INVALID;
14407         tp->link_config.orig_speed = SPEED_INVALID;
14408         tp->link_config.orig_duplex = DUPLEX_INVALID;
14409         tp->link_config.orig_autoneg = AUTONEG_INVALID;
14410 }
14411
14412 static void __devinit tg3_init_bufmgr_config(struct tg3 *tp)
14413 {
14414         if (tp->tg3_flags3 & TG3_FLG3_5717_PLUS) {
14415                 tp->bufmgr_config.mbuf_read_dma_low_water =
14416                         DEFAULT_MB_RDMA_LOW_WATER_5705;
14417                 tp->bufmgr_config.mbuf_mac_rx_low_water =
14418                         DEFAULT_MB_MACRX_LOW_WATER_57765;
14419                 tp->bufmgr_config.mbuf_high_water =
14420                         DEFAULT_MB_HIGH_WATER_57765;
14421
14422                 tp->bufmgr_config.mbuf_read_dma_low_water_jumbo =
14423                         DEFAULT_MB_RDMA_LOW_WATER_5705;
14424                 tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo =
14425                         DEFAULT_MB_MACRX_LOW_WATER_JUMBO_57765;
14426                 tp->bufmgr_config.mbuf_high_water_jumbo =
14427                         DEFAULT_MB_HIGH_WATER_JUMBO_57765;
14428         } else if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
14429                 tp->bufmgr_config.mbuf_read_dma_low_water =
14430                         DEFAULT_MB_RDMA_LOW_WATER_5705;
14431                 tp->bufmgr_config.mbuf_mac_rx_low_water =
14432                         DEFAULT_MB_MACRX_LOW_WATER_5705;
14433                 tp->bufmgr_config.mbuf_high_water =
14434                         DEFAULT_MB_HIGH_WATER_5705;
14435                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
14436                         tp->bufmgr_config.mbuf_mac_rx_low_water =
14437                                 DEFAULT_MB_MACRX_LOW_WATER_5906;
14438                         tp->bufmgr_config.mbuf_high_water =
14439                                 DEFAULT_MB_HIGH_WATER_5906;
14440                 }
14441
14442                 tp->bufmgr_config.mbuf_read_dma_low_water_jumbo =
14443                         DEFAULT_MB_RDMA_LOW_WATER_JUMBO_5780;
14444                 tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo =
14445                         DEFAULT_MB_MACRX_LOW_WATER_JUMBO_5780;
14446                 tp->bufmgr_config.mbuf_high_water_jumbo =
14447                         DEFAULT_MB_HIGH_WATER_JUMBO_5780;
14448         } else {
14449                 tp->bufmgr_config.mbuf_read_dma_low_water =
14450                         DEFAULT_MB_RDMA_LOW_WATER;
14451                 tp->bufmgr_config.mbuf_mac_rx_low_water =
14452                         DEFAULT_MB_MACRX_LOW_WATER;
14453                 tp->bufmgr_config.mbuf_high_water =
14454                         DEFAULT_MB_HIGH_WATER;
14455
14456                 tp->bufmgr_config.mbuf_read_dma_low_water_jumbo =
14457                         DEFAULT_MB_RDMA_LOW_WATER_JUMBO;
14458                 tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo =
14459                         DEFAULT_MB_MACRX_LOW_WATER_JUMBO;
14460                 tp->bufmgr_config.mbuf_high_water_jumbo =
14461                         DEFAULT_MB_HIGH_WATER_JUMBO;
14462         }
14463
14464         tp->bufmgr_config.dma_low_water = DEFAULT_DMA_LOW_WATER;
14465         tp->bufmgr_config.dma_high_water = DEFAULT_DMA_HIGH_WATER;
14466 }
14467
14468 static char * __devinit tg3_phy_string(struct tg3 *tp)
14469 {
14470         switch (tp->phy_id & TG3_PHY_ID_MASK) {
14471         case TG3_PHY_ID_BCM5400:        return "5400";
14472         case TG3_PHY_ID_BCM5401:        return "5401";
14473         case TG3_PHY_ID_BCM5411:        return "5411";
14474         case TG3_PHY_ID_BCM5701:        return "5701";
14475         case TG3_PHY_ID_BCM5703:        return "5703";
14476         case TG3_PHY_ID_BCM5704:        return "5704";
14477         case TG3_PHY_ID_BCM5705:        return "5705";
14478         case TG3_PHY_ID_BCM5750:        return "5750";
14479         case TG3_PHY_ID_BCM5752:        return "5752";
14480         case TG3_PHY_ID_BCM5714:        return "5714";
14481         case TG3_PHY_ID_BCM5780:        return "5780";
14482         case TG3_PHY_ID_BCM5755:        return "5755";
14483         case TG3_PHY_ID_BCM5787:        return "5787";
14484         case TG3_PHY_ID_BCM5784:        return "5784";
14485         case TG3_PHY_ID_BCM5756:        return "5722/5756";
14486         case TG3_PHY_ID_BCM5906:        return "5906";
14487         case TG3_PHY_ID_BCM5761:        return "5761";
14488         case TG3_PHY_ID_BCM5718C:       return "5718C";
14489         case TG3_PHY_ID_BCM5718S:       return "5718S";
14490         case TG3_PHY_ID_BCM57765:       return "57765";
14491         case TG3_PHY_ID_BCM5719C:       return "5719C";
14492         case TG3_PHY_ID_BCM8002:        return "8002/serdes";
14493         case 0:                 return "serdes";
14494         default:                return "unknown";
14495         }
14496 }
14497
14498 static char * __devinit tg3_bus_string(struct tg3 *tp, char *str)
14499 {
14500         if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
14501                 strcpy(str, "PCI Express");
14502                 return str;
14503         } else if (tp->tg3_flags & TG3_FLAG_PCIX_MODE) {
14504                 u32 clock_ctrl = tr32(TG3PCI_CLOCK_CTRL) & 0x1f;
14505
14506                 strcpy(str, "PCIX:");
14507
14508                 if ((clock_ctrl == 7) ||
14509                     ((tr32(GRC_MISC_CFG) & GRC_MISC_CFG_BOARD_ID_MASK) ==
14510                      GRC_MISC_CFG_BOARD_ID_5704CIOBE))
14511                         strcat(str, "133MHz");
14512                 else if (clock_ctrl == 0)
14513                         strcat(str, "33MHz");
14514                 else if (clock_ctrl == 2)
14515                         strcat(str, "50MHz");
14516                 else if (clock_ctrl == 4)
14517                         strcat(str, "66MHz");
14518                 else if (clock_ctrl == 6)
14519                         strcat(str, "100MHz");
14520         } else {
14521                 strcpy(str, "PCI:");
14522                 if (tp->tg3_flags & TG3_FLAG_PCI_HIGH_SPEED)
14523                         strcat(str, "66MHz");
14524                 else
14525                         strcat(str, "33MHz");
14526         }
14527         if (tp->tg3_flags & TG3_FLAG_PCI_32BIT)
14528                 strcat(str, ":32-bit");
14529         else
14530                 strcat(str, ":64-bit");
14531         return str;
14532 }
14533
14534 static struct pci_dev * __devinit tg3_find_peer(struct tg3 *tp)
14535 {
14536         struct pci_dev *peer;
14537         unsigned int func, devnr = tp->pdev->devfn & ~7;
14538
14539         for (func = 0; func < 8; func++) {
14540                 peer = pci_get_slot(tp->pdev->bus, devnr | func);
14541                 if (peer && peer != tp->pdev)
14542                         break;
14543                 pci_dev_put(peer);
14544         }
14545         /* 5704 can be configured in single-port mode, set peer to
14546          * tp->pdev in that case.
14547          */
14548         if (!peer) {
14549                 peer = tp->pdev;
14550                 return peer;
14551         }
14552
14553         /*
14554          * We don't need to keep the refcount elevated; there's no way
14555          * to remove one half of this device without removing the other
14556          */
14557         pci_dev_put(peer);
14558
14559         return peer;
14560 }
14561
14562 static void __devinit tg3_init_coal(struct tg3 *tp)
14563 {
14564         struct ethtool_coalesce *ec = &tp->coal;
14565
14566         memset(ec, 0, sizeof(*ec));
14567         ec->cmd = ETHTOOL_GCOALESCE;
14568         ec->rx_coalesce_usecs = LOW_RXCOL_TICKS;
14569         ec->tx_coalesce_usecs = LOW_TXCOL_TICKS;
14570         ec->rx_max_coalesced_frames = LOW_RXMAX_FRAMES;
14571         ec->tx_max_coalesced_frames = LOW_TXMAX_FRAMES;
14572         ec->rx_coalesce_usecs_irq = DEFAULT_RXCOAL_TICK_INT;
14573         ec->tx_coalesce_usecs_irq = DEFAULT_TXCOAL_TICK_INT;
14574         ec->rx_max_coalesced_frames_irq = DEFAULT_RXCOAL_MAXF_INT;
14575         ec->tx_max_coalesced_frames_irq = DEFAULT_TXCOAL_MAXF_INT;
14576         ec->stats_block_coalesce_usecs = DEFAULT_STAT_COAL_TICKS;
14577
14578         if (tp->coalesce_mode & (HOSTCC_MODE_CLRTICK_RXBD |
14579                                  HOSTCC_MODE_CLRTICK_TXBD)) {
14580                 ec->rx_coalesce_usecs = LOW_RXCOL_TICKS_CLRTCKS;
14581                 ec->rx_coalesce_usecs_irq = DEFAULT_RXCOAL_TICK_INT_CLRTCKS;
14582                 ec->tx_coalesce_usecs = LOW_TXCOL_TICKS_CLRTCKS;
14583                 ec->tx_coalesce_usecs_irq = DEFAULT_TXCOAL_TICK_INT_CLRTCKS;
14584         }
14585
14586         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
14587                 ec->rx_coalesce_usecs_irq = 0;
14588                 ec->tx_coalesce_usecs_irq = 0;
14589                 ec->stats_block_coalesce_usecs = 0;
14590         }
14591 }
14592
14593 static const struct net_device_ops tg3_netdev_ops = {
14594         .ndo_open               = tg3_open,
14595         .ndo_stop               = tg3_close,
14596         .ndo_start_xmit         = tg3_start_xmit,
14597         .ndo_get_stats64        = tg3_get_stats64,
14598         .ndo_validate_addr      = eth_validate_addr,
14599         .ndo_set_multicast_list = tg3_set_rx_mode,
14600         .ndo_set_mac_address    = tg3_set_mac_addr,
14601         .ndo_do_ioctl           = tg3_ioctl,
14602         .ndo_tx_timeout         = tg3_tx_timeout,
14603         .ndo_change_mtu         = tg3_change_mtu,
14604 #if TG3_VLAN_TAG_USED
14605         .ndo_vlan_rx_register   = tg3_vlan_rx_register,
14606 #endif
14607 #ifdef CONFIG_NET_POLL_CONTROLLER
14608         .ndo_poll_controller    = tg3_poll_controller,
14609 #endif
14610 };
14611
14612 static const struct net_device_ops tg3_netdev_ops_dma_bug = {
14613         .ndo_open               = tg3_open,
14614         .ndo_stop               = tg3_close,
14615         .ndo_start_xmit         = tg3_start_xmit_dma_bug,
14616         .ndo_get_stats64        = tg3_get_stats64,
14617         .ndo_validate_addr      = eth_validate_addr,
14618         .ndo_set_multicast_list = tg3_set_rx_mode,
14619         .ndo_set_mac_address    = tg3_set_mac_addr,
14620         .ndo_do_ioctl           = tg3_ioctl,
14621         .ndo_tx_timeout         = tg3_tx_timeout,
14622         .ndo_change_mtu         = tg3_change_mtu,
14623 #if TG3_VLAN_TAG_USED
14624         .ndo_vlan_rx_register   = tg3_vlan_rx_register,
14625 #endif
14626 #ifdef CONFIG_NET_POLL_CONTROLLER
14627         .ndo_poll_controller    = tg3_poll_controller,
14628 #endif
14629 };
14630
14631 static int __devinit tg3_init_one(struct pci_dev *pdev,
14632                                   const struct pci_device_id *ent)
14633 {
14634         struct net_device *dev;
14635         struct tg3 *tp;
14636         int i, err, pm_cap;
14637         u32 sndmbx, rcvmbx, intmbx;
14638         char str[40];
14639         u64 dma_mask, persist_dma_mask;
14640
14641         printk_once(KERN_INFO "%s\n", version);
14642
14643         err = pci_enable_device(pdev);
14644         if (err) {
14645                 dev_err(&pdev->dev, "Cannot enable PCI device, aborting\n");
14646                 return err;
14647         }
14648
14649         err = pci_request_regions(pdev, DRV_MODULE_NAME);
14650         if (err) {
14651                 dev_err(&pdev->dev, "Cannot obtain PCI resources, aborting\n");
14652                 goto err_out_disable_pdev;
14653         }
14654
14655         pci_set_master(pdev);
14656
14657         /* Find power-management capability. */
14658         pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM);
14659         if (pm_cap == 0) {
14660                 dev_err(&pdev->dev,
14661                         "Cannot find Power Management capability, aborting\n");
14662                 err = -EIO;
14663                 goto err_out_free_res;
14664         }
14665
14666         dev = alloc_etherdev_mq(sizeof(*tp), TG3_IRQ_MAX_VECS);
14667         if (!dev) {
14668                 dev_err(&pdev->dev, "Etherdev alloc failed, aborting\n");
14669                 err = -ENOMEM;
14670                 goto err_out_free_res;
14671         }
14672
14673         SET_NETDEV_DEV(dev, &pdev->dev);
14674
14675 #if TG3_VLAN_TAG_USED
14676         dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
14677 #endif
14678
14679         tp = netdev_priv(dev);
14680         tp->pdev = pdev;
14681         tp->dev = dev;
14682         tp->pm_cap = pm_cap;
14683         tp->rx_mode = TG3_DEF_RX_MODE;
14684         tp->tx_mode = TG3_DEF_TX_MODE;
14685
14686         if (tg3_debug > 0)
14687                 tp->msg_enable = tg3_debug;
14688         else
14689                 tp->msg_enable = TG3_DEF_MSG_ENABLE;
14690
14691         /* The word/byte swap controls here control register access byte
14692          * swapping.  DMA data byte swapping is controlled in the GRC_MODE
14693          * setting below.
14694          */
14695         tp->misc_host_ctrl =
14696                 MISC_HOST_CTRL_MASK_PCI_INT |
14697                 MISC_HOST_CTRL_WORD_SWAP |
14698                 MISC_HOST_CTRL_INDIR_ACCESS |
14699                 MISC_HOST_CTRL_PCISTATE_RW;
14700
14701         /* The NONFRM (non-frame) byte/word swap controls take effect
14702          * on descriptor entries, anything which isn't packet data.
14703          *
14704          * The StrongARM chips on the board (one for tx, one for rx)
14705          * are running in big-endian mode.
14706          */
14707         tp->grc_mode = (GRC_MODE_WSWAP_DATA | GRC_MODE_BSWAP_DATA |
14708                         GRC_MODE_WSWAP_NONFRM_DATA);
14709 #ifdef __BIG_ENDIAN
14710         tp->grc_mode |= GRC_MODE_BSWAP_NONFRM_DATA;
14711 #endif
14712         spin_lock_init(&tp->lock);
14713         spin_lock_init(&tp->indirect_lock);
14714         INIT_WORK(&tp->reset_task, tg3_reset_task);
14715
14716         tp->regs = pci_ioremap_bar(pdev, BAR_0);
14717         if (!tp->regs) {
14718                 dev_err(&pdev->dev, "Cannot map device registers, aborting\n");
14719                 err = -ENOMEM;
14720                 goto err_out_free_dev;
14721         }
14722
14723         tg3_init_link_config(tp);
14724
14725         tp->rx_pending = TG3_DEF_RX_RING_PENDING;
14726         tp->rx_jumbo_pending = TG3_DEF_RX_JUMBO_RING_PENDING;
14727
14728         dev->ethtool_ops = &tg3_ethtool_ops;
14729         dev->watchdog_timeo = TG3_TX_TIMEOUT;
14730         dev->irq = pdev->irq;
14731
14732         err = tg3_get_invariants(tp);
14733         if (err) {
14734                 dev_err(&pdev->dev,
14735                         "Problem fetching invariants of chip, aborting\n");
14736                 goto err_out_iounmap;
14737         }
14738
14739         if ((tp->tg3_flags3 & TG3_FLG3_5755_PLUS) &&
14740             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5717 &&
14741             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5719)
14742                 dev->netdev_ops = &tg3_netdev_ops;
14743         else
14744                 dev->netdev_ops = &tg3_netdev_ops_dma_bug;
14745
14746
14747         /* The EPB bridge inside 5714, 5715, and 5780 and any
14748          * device behind the EPB cannot support DMA addresses > 40-bit.
14749          * On 64-bit systems with IOMMU, use 40-bit dma_mask.
14750          * On 64-bit systems without IOMMU, use 64-bit dma_mask and
14751          * do DMA address check in tg3_start_xmit().
14752          */
14753         if (tp->tg3_flags2 & TG3_FLG2_IS_5788)
14754                 persist_dma_mask = dma_mask = DMA_BIT_MASK(32);
14755         else if (tp->tg3_flags & TG3_FLAG_40BIT_DMA_BUG) {
14756                 persist_dma_mask = dma_mask = DMA_BIT_MASK(40);
14757 #ifdef CONFIG_HIGHMEM
14758                 dma_mask = DMA_BIT_MASK(64);
14759 #endif
14760         } else
14761                 persist_dma_mask = dma_mask = DMA_BIT_MASK(64);
14762
14763         /* Configure DMA attributes. */
14764         if (dma_mask > DMA_BIT_MASK(32)) {
14765                 err = pci_set_dma_mask(pdev, dma_mask);
14766                 if (!err) {
14767                         dev->features |= NETIF_F_HIGHDMA;
14768                         err = pci_set_consistent_dma_mask(pdev,
14769                                                           persist_dma_mask);
14770                         if (err < 0) {
14771                                 dev_err(&pdev->dev, "Unable to obtain 64 bit "
14772                                         "DMA for consistent allocations\n");
14773                                 goto err_out_iounmap;
14774                         }
14775                 }
14776         }
14777         if (err || dma_mask == DMA_BIT_MASK(32)) {
14778                 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
14779                 if (err) {
14780                         dev_err(&pdev->dev,
14781                                 "No usable DMA configuration, aborting\n");
14782                         goto err_out_iounmap;
14783                 }
14784         }
14785
14786         tg3_init_bufmgr_config(tp);
14787
14788         /* Selectively allow TSO based on operating conditions */
14789         if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO) ||
14790             (tp->fw_needed && !(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)))
14791                 tp->tg3_flags2 |= TG3_FLG2_TSO_CAPABLE;
14792         else {
14793                 tp->tg3_flags2 &= ~(TG3_FLG2_TSO_CAPABLE | TG3_FLG2_TSO_BUG);
14794                 tp->fw_needed = NULL;
14795         }
14796
14797         if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0)
14798                 tp->fw_needed = FIRMWARE_TG3;
14799
14800         /* TSO is on by default on chips that support hardware TSO.
14801          * Firmware TSO on older chips gives lower performance, so it
14802          * is off by default, but can be enabled using ethtool.
14803          */
14804         if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO) &&
14805             (dev->features & NETIF_F_IP_CSUM)) {
14806                 dev->features |= NETIF_F_TSO;
14807                 vlan_features_add(dev, NETIF_F_TSO);
14808         }
14809         if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_2) ||
14810             (tp->tg3_flags2 & TG3_FLG2_HW_TSO_3)) {
14811                 if (dev->features & NETIF_F_IPV6_CSUM) {
14812                         dev->features |= NETIF_F_TSO6;
14813                         vlan_features_add(dev, NETIF_F_TSO6);
14814                 }
14815                 if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_3) ||
14816                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
14817                     (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
14818                      GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) ||
14819                         GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
14820                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780) {
14821                         dev->features |= NETIF_F_TSO_ECN;
14822                         vlan_features_add(dev, NETIF_F_TSO_ECN);
14823                 }
14824         }
14825
14826         if (tp->pci_chip_rev_id == CHIPREV_ID_5705_A1 &&
14827             !(tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) &&
14828             !(tr32(TG3PCI_PCISTATE) & PCISTATE_BUS_SPEED_HIGH)) {
14829                 tp->tg3_flags2 |= TG3_FLG2_MAX_RXPEND_64;
14830                 tp->rx_pending = 63;
14831         }
14832
14833         err = tg3_get_device_address(tp);
14834         if (err) {
14835                 dev_err(&pdev->dev,
14836                         "Could not obtain valid ethernet address, aborting\n");
14837                 goto err_out_iounmap;
14838         }
14839
14840         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
14841                 tp->aperegs = pci_ioremap_bar(pdev, BAR_2);
14842                 if (!tp->aperegs) {
14843                         dev_err(&pdev->dev,
14844                                 "Cannot map APE registers, aborting\n");
14845                         err = -ENOMEM;
14846                         goto err_out_iounmap;
14847                 }
14848
14849                 tg3_ape_lock_init(tp);
14850
14851                 if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF)
14852                         tg3_read_dash_ver(tp);
14853         }
14854
14855         /*
14856          * Reset chip in case UNDI or EFI driver did not shutdown
14857          * DMA self test will enable WDMAC and we'll see (spurious)
14858          * pending DMA on the PCI bus at that point.
14859          */
14860         if ((tr32(HOSTCC_MODE) & HOSTCC_MODE_ENABLE) ||
14861             (tr32(WDMAC_MODE) & WDMAC_MODE_ENABLE)) {
14862                 tw32(MEMARB_MODE, MEMARB_MODE_ENABLE);
14863                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
14864         }
14865
14866         err = tg3_test_dma(tp);
14867         if (err) {
14868                 dev_err(&pdev->dev, "DMA engine test failed, aborting\n");
14869                 goto err_out_apeunmap;
14870         }
14871
14872         /* flow control autonegotiation is default behavior */
14873         tp->tg3_flags |= TG3_FLAG_PAUSE_AUTONEG;
14874         tp->link_config.flowctrl = FLOW_CTRL_TX | FLOW_CTRL_RX;
14875
14876         intmbx = MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW;
14877         rcvmbx = MAILBOX_RCVRET_CON_IDX_0 + TG3_64BIT_REG_LOW;
14878         sndmbx = MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW;
14879         for (i = 0; i < tp->irq_max; i++) {
14880                 struct tg3_napi *tnapi = &tp->napi[i];
14881
14882                 tnapi->tp = tp;
14883                 tnapi->tx_pending = TG3_DEF_TX_RING_PENDING;
14884
14885                 tnapi->int_mbox = intmbx;
14886                 if (i < 4)
14887                         intmbx += 0x8;
14888                 else
14889                         intmbx += 0x4;
14890
14891                 tnapi->consmbox = rcvmbx;
14892                 tnapi->prodmbox = sndmbx;
14893
14894                 if (i)
14895                         tnapi->coal_now = HOSTCC_MODE_COAL_VEC1_NOW << (i - 1);
14896                 else
14897                         tnapi->coal_now = HOSTCC_MODE_NOW;
14898
14899                 if (!(tp->tg3_flags & TG3_FLAG_SUPPORT_MSIX))
14900                         break;
14901
14902                 /*
14903                  * If we support MSIX, we'll be using RSS.  If we're using
14904                  * RSS, the first vector only handles link interrupts and the
14905                  * remaining vectors handle rx and tx interrupts.  Reuse the
14906                  * mailbox values for the next iteration.  The values we setup
14907                  * above are still useful for the single vectored mode.
14908                  */
14909                 if (!i)
14910                         continue;
14911
14912                 rcvmbx += 0x8;
14913
14914                 if (sndmbx & 0x4)
14915                         sndmbx -= 0x4;
14916                 else
14917                         sndmbx += 0xc;
14918         }
14919
14920         tg3_init_coal(tp);
14921
14922         pci_set_drvdata(pdev, dev);
14923
14924         err = register_netdev(dev);
14925         if (err) {
14926                 dev_err(&pdev->dev, "Cannot register net device, aborting\n");
14927                 goto err_out_apeunmap;
14928         }
14929
14930         netdev_info(dev, "Tigon3 [partno(%s) rev %04x] (%s) MAC address %pM\n",
14931                     tp->board_part_number,
14932                     tp->pci_chip_rev_id,
14933                     tg3_bus_string(tp, str),
14934                     dev->dev_addr);
14935
14936         if (tp->phy_flags & TG3_PHYFLG_IS_CONNECTED) {
14937                 struct phy_device *phydev;
14938                 phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
14939                 netdev_info(dev,
14940                             "attached PHY driver [%s] (mii_bus:phy_addr=%s)\n",
14941                             phydev->drv->name, dev_name(&phydev->dev));
14942         } else {
14943                 char *ethtype;
14944
14945                 if (tp->phy_flags & TG3_PHYFLG_10_100_ONLY)
14946                         ethtype = "10/100Base-TX";
14947                 else if (tp->phy_flags & TG3_PHYFLG_ANY_SERDES)
14948                         ethtype = "1000Base-SX";
14949                 else
14950                         ethtype = "10/100/1000Base-T";
14951
14952                 netdev_info(dev, "attached PHY is %s (%s Ethernet) "
14953                             "(WireSpeed[%d])\n", tg3_phy_string(tp), ethtype,
14954                           (tp->phy_flags & TG3_PHYFLG_NO_ETH_WIRE_SPEED) == 0);
14955         }
14956
14957         netdev_info(dev, "RXcsums[%d] LinkChgREG[%d] MIirq[%d] ASF[%d] TSOcap[%d]\n",
14958                     (tp->tg3_flags & TG3_FLAG_RX_CHECKSUMS) != 0,
14959                     (tp->tg3_flags & TG3_FLAG_USE_LINKCHG_REG) != 0,
14960                     (tp->phy_flags & TG3_PHYFLG_USE_MI_INTERRUPT) != 0,
14961                     (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) != 0,
14962                     (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) != 0);
14963         netdev_info(dev, "dma_rwctrl[%08x] dma_mask[%d-bit]\n",
14964                     tp->dma_rwctrl,
14965                     pdev->dma_mask == DMA_BIT_MASK(32) ? 32 :
14966                     ((u64)pdev->dma_mask) == DMA_BIT_MASK(40) ? 40 : 64);
14967
14968         return 0;
14969
14970 err_out_apeunmap:
14971         if (tp->aperegs) {
14972                 iounmap(tp->aperegs);
14973                 tp->aperegs = NULL;
14974         }
14975
14976 err_out_iounmap:
14977         if (tp->regs) {
14978                 iounmap(tp->regs);
14979                 tp->regs = NULL;
14980         }
14981
14982 err_out_free_dev:
14983         free_netdev(dev);
14984
14985 err_out_free_res:
14986         pci_release_regions(pdev);
14987
14988 err_out_disable_pdev:
14989         pci_disable_device(pdev);
14990         pci_set_drvdata(pdev, NULL);
14991         return err;
14992 }
14993
14994 static void __devexit tg3_remove_one(struct pci_dev *pdev)
14995 {
14996         struct net_device *dev = pci_get_drvdata(pdev);
14997
14998         if (dev) {
14999                 struct tg3 *tp = netdev_priv(dev);
15000
15001                 if (tp->fw)
15002                         release_firmware(tp->fw);
15003
15004                 flush_scheduled_work();
15005
15006                 if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
15007                         tg3_phy_fini(tp);
15008                         tg3_mdio_fini(tp);
15009                 }
15010
15011                 unregister_netdev(dev);
15012                 if (tp->aperegs) {
15013                         iounmap(tp->aperegs);
15014                         tp->aperegs = NULL;
15015                 }
15016                 if (tp->regs) {
15017                         iounmap(tp->regs);
15018                         tp->regs = NULL;
15019                 }
15020                 free_netdev(dev);
15021                 pci_release_regions(pdev);
15022                 pci_disable_device(pdev);
15023                 pci_set_drvdata(pdev, NULL);
15024         }
15025 }
15026
15027 static int tg3_suspend(struct pci_dev *pdev, pm_message_t state)
15028 {
15029         struct net_device *dev = pci_get_drvdata(pdev);
15030         struct tg3 *tp = netdev_priv(dev);
15031         pci_power_t target_state;
15032         int err;
15033
15034         /* PCI register 4 needs to be saved whether netif_running() or not.
15035          * MSI address and data need to be saved if using MSI and
15036          * netif_running().
15037          */
15038         pci_save_state(pdev);
15039
15040         if (!netif_running(dev))
15041                 return 0;
15042
15043         flush_scheduled_work();
15044         tg3_phy_stop(tp);
15045         tg3_netif_stop(tp);
15046
15047         del_timer_sync(&tp->timer);
15048
15049         tg3_full_lock(tp, 1);
15050         tg3_disable_ints(tp);
15051         tg3_full_unlock(tp);
15052
15053         netif_device_detach(dev);
15054
15055         tg3_full_lock(tp, 0);
15056         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
15057         tp->tg3_flags &= ~TG3_FLAG_INIT_COMPLETE;
15058         tg3_full_unlock(tp);
15059
15060         target_state = pdev->pm_cap ? pci_target_state(pdev) : PCI_D3hot;
15061
15062         err = tg3_set_power_state(tp, target_state);
15063         if (err) {
15064                 int err2;
15065
15066                 tg3_full_lock(tp, 0);
15067
15068                 tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
15069                 err2 = tg3_restart_hw(tp, 1);
15070                 if (err2)
15071                         goto out;
15072
15073                 tp->timer.expires = jiffies + tp->timer_offset;
15074                 add_timer(&tp->timer);
15075
15076                 netif_device_attach(dev);
15077                 tg3_netif_start(tp);
15078
15079 out:
15080                 tg3_full_unlock(tp);
15081
15082                 if (!err2)
15083                         tg3_phy_start(tp);
15084         }
15085
15086         return err;
15087 }
15088
15089 static int tg3_resume(struct pci_dev *pdev)
15090 {
15091         struct net_device *dev = pci_get_drvdata(pdev);
15092         struct tg3 *tp = netdev_priv(dev);
15093         int err;
15094
15095         pci_restore_state(tp->pdev);
15096
15097         if (!netif_running(dev))
15098                 return 0;
15099
15100         err = tg3_set_power_state(tp, PCI_D0);
15101         if (err)
15102                 return err;
15103
15104         netif_device_attach(dev);
15105
15106         tg3_full_lock(tp, 0);
15107
15108         tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
15109         err = tg3_restart_hw(tp, 1);
15110         if (err)
15111                 goto out;
15112
15113         tp->timer.expires = jiffies + tp->timer_offset;
15114         add_timer(&tp->timer);
15115
15116         tg3_netif_start(tp);
15117
15118 out:
15119         tg3_full_unlock(tp);
15120
15121         if (!err)
15122                 tg3_phy_start(tp);
15123
15124         return err;
15125 }
15126
15127 static struct pci_driver tg3_driver = {
15128         .name           = DRV_MODULE_NAME,
15129         .id_table       = tg3_pci_tbl,
15130         .probe          = tg3_init_one,
15131         .remove         = __devexit_p(tg3_remove_one),
15132         .suspend        = tg3_suspend,
15133         .resume         = tg3_resume
15134 };
15135
15136 static int __init tg3_init(void)
15137 {
15138         return pci_register_driver(&tg3_driver);
15139 }
15140
15141 static void __exit tg3_cleanup(void)
15142 {
15143         pci_unregister_driver(&tg3_driver);
15144 }
15145
15146 module_init(tg3_init);
15147 module_exit(tg3_cleanup);