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  10  *      Derived from proprietary unpublished source code,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                     113
  73 #define DRV_MODULE_VERSION      \
  74         __stringify(TG3_MAJ_NUM) "." __stringify(TG3_MIN_NUM)
  75 #define DRV_MODULE_RELDATE      "August 2, 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_RING_SIZE                512
 105 #define TG3_DEF_RX_RING_PENDING         200
 106 #define TG3_RX_JUMBO_RING_SIZE          256
 107 #define TG3_DEF_RX_JUMBO_RING_PENDING   100
 108 #define TG3_RSS_INDIR_TBL_SIZE          128
 109
 110 /* Do not place this n-ring entries value into the tp struct itself,
 111  * we really want to expose these constants to GCC so that modulo et
 112  * al.  operations are done with shifts and masks instead of with
 113  * hw multiply/modulo instructions.  Another solution would be to
 114  * replace things like '% foo' with '& (foo - 1)'.
 115  */
 116 #define TG3_RX_RCB_RING_SIZE(tp)        \
 117         (((tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) && \
 118           !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) ? 1024 : 512)
 119
 120 #define TG3_TX_RING_SIZE                512
 121 #define TG3_DEF_TX_RING_PENDING         (TG3_TX_RING_SIZE - 1)
 122
 123 #define TG3_RX_RING_BYTES       (sizeof(struct tg3_rx_buffer_desc) * \
 124                                  TG3_RX_RING_SIZE)
 125 #define TG3_RX_JUMBO_RING_BYTES (sizeof(struct tg3_ext_rx_buffer_desc) * \
 126                                  TG3_RX_JUMBO_RING_SIZE)
 127 #define TG3_RX_RCB_RING_BYTES(tp) (sizeof(struct tg3_rx_buffer_desc) * \
 128                                  TG3_RX_RCB_RING_SIZE(tp))
 129 #define TG3_TX_RING_BYTES       (sizeof(struct tg3_tx_buffer_desc) * \
 130                                  TG3_TX_RING_SIZE)
 131 #define NEXT_TX(N)              (((N) + 1) & (TG3_TX_RING_SIZE - 1))
 132
 133 #define TG3_RX_DMA_ALIGN                16
 134 #define TG3_RX_HEADROOM                 ALIGN(VLAN_HLEN, TG3_RX_DMA_ALIGN)
 135
 136 #define TG3_DMA_BYTE_ENAB               64
 137
 138 #define TG3_RX_STD_DMA_SZ               1536
 139 #define TG3_RX_JMB_DMA_SZ               9046
 140
 141 #define TG3_RX_DMA_TO_MAP_SZ(x)         ((x) + TG3_DMA_BYTE_ENAB)
 142
 143 #define TG3_RX_STD_MAP_SZ               TG3_RX_DMA_TO_MAP_SZ(TG3_RX_STD_DMA_SZ)
 144 #define TG3_RX_JMB_MAP_SZ               TG3_RX_DMA_TO_MAP_SZ(TG3_RX_JMB_DMA_SZ)
 145
 146 #define TG3_RX_STD_BUFF_RING_SIZE \
 147         (sizeof(struct ring_info) * TG3_RX_RING_SIZE)
 148
 149 #define TG3_RX_JMB_BUFF_RING_SIZE \
 150         (sizeof(struct ring_info) * TG3_RX_JUMBO_RING_SIZE)
 151
 152 /* Due to a hardware bug, the 5701 can only DMA to memory addresses
 153  * that are at least dword aligned when used in PCIX mode.  The driver
 154  * works around this bug by double copying the packet.  This workaround
 155  * is built into the normal double copy length check for efficiency.
 156  *
 157  * However, the double copy is only necessary on those architectures
 158  * where unaligned memory accesses are inefficient.  For those architectures
 159  * where unaligned memory accesses incur little penalty, we can reintegrate
 160  * the 5701 in the normal rx path.  Doing so saves a device structure
 161  * dereference by hardcoding the double copy threshold in place.
 162  */
 163 #define TG3_RX_COPY_THRESHOLD           256
 164 #if NET_IP_ALIGN == 0 || defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
 165         #define TG3_RX_COPY_THRESH(tp)  TG3_RX_COPY_THRESHOLD
 166 #else
 167         #define TG3_RX_COPY_THRESH(tp)  ((tp)->rx_copy_thresh)
 168 #endif
 169
 170 /* minimum number of free TX descriptors required to wake up TX process */
 171 #define TG3_TX_WAKEUP_THRESH(tnapi)             ((tnapi)->tx_pending / 4)
 172
 173 #define TG3_RAW_IP_ALIGN 2
 174
 175 /* number of ETHTOOL_GSTATS u64's */
 176 #define TG3_NUM_STATS           (sizeof(struct tg3_ethtool_stats)/sizeof(u64))
 177
 178 #define TG3_NUM_TEST            6
 179
 180 #define TG3_FW_UPDATE_TIMEOUT_SEC       5
 181
 182 #define FIRMWARE_TG3            "tigon/tg3.bin"
 183 #define FIRMWARE_TG3TSO         "tigon/tg3_tso.bin"
 184 #define FIRMWARE_TG3TSO5        "tigon/tg3_tso5.bin"
 185
 186 static char version[] __devinitdata =
 187         DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")";
 188
 189 MODULE_AUTHOR("David S. Miller (davem@redhat.com) and Jeff Garzik (jgarzik@pobox.com)");
 190 MODULE_DESCRIPTION("Broadcom Tigon3 ethernet driver");
 191 MODULE_LICENSE("GPL");
 192 MODULE_VERSION(DRV_MODULE_VERSION);
 193 MODULE_FIRMWARE(FIRMWARE_TG3);
 194 MODULE_FIRMWARE(FIRMWARE_TG3TSO);
 195 MODULE_FIRMWARE(FIRMWARE_TG3TSO5);
 196
 197 static int tg3_debug = -1;      /* -1 == use TG3_DEF_MSG_ENABLE as value */
 198 module_param(tg3_debug, int, 0);
 199 MODULE_PARM_DESC(tg3_debug, "Tigon3 bitmapped debugging message enable value");
 200
 201 static DEFINE_PCI_DEVICE_TABLE(tg3_pci_tbl) = {
 202         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5700)},
 203         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5701)},
 204         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702)},
 205         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5703)},
 206         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5704)},
 207         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702FE)},
 208         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705)},
 209         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705_2)},
 210         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705M)},
 211         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705M_2)},
 212         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702X)},
 213         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5703X)},
 214         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5704S)},
 215         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702A3)},
 216         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5703A3)},
 217         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5782)},
 218         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5788)},
 219         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5789)},
 220         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5901)},
 221         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5901_2)},
 222         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5704S_2)},
 223         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705F)},
 224         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5721)},
 225         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5722)},
 226         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751)},
 227         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751M)},
 228         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751F)},
 229         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5752)},
 230         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5752M)},
 231         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753)},
 232         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753M)},
 233         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753F)},
 234         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5754)},
 235         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5754M)},
 236         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5755)},
 237         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5755M)},
 238         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5756)},
 239         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5786)},
 240         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5787)},
 241         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5787M)},
 242         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5787F)},
 243         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5714)},
 244         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5714S)},
 245         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5715)},
 246         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5715S)},
 247         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5780)},
 248         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5780S)},
 249         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5781)},
 250         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5906)},
 251         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5906M)},
 252         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5784)},
 253         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5764)},
 254         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5723)},
 255         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5761)},
 256         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5761E)},
 257         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5761S)},
 258         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5761SE)},
 259         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5785_G)},
 260         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5785_F)},
 261         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57780)},
 262         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57760)},
 263         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57790)},
 264         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57788)},
 265         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5717)},
 266         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5718)},
 267         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5724)},
 268         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57781)},
 269         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57785)},
 270         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57761)},
 271         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57765)},
 272         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57791)},
 273         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57795)},
 274         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5719)},
 275         {PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_9DXX)},
 276         {PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_9MXX)},
 277         {PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1000)},
 278         {PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1001)},
 279         {PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1003)},
 280         {PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC9100)},
 281         {PCI_DEVICE(PCI_VENDOR_ID_APPLE, PCI_DEVICE_ID_APPLE_TIGON3)},
 282         {}
 283 };
 284
 285 MODULE_DEVICE_TABLE(pci, tg3_pci_tbl);
 286
 287 static const struct {
 288         const char string[ETH_GSTRING_LEN];
 289 } ethtool_stats_keys[TG3_NUM_STATS] = {
 290         { "rx_octets" },
 291         { "rx_fragments" },
 292         { "rx_ucast_packets" },
 293         { "rx_mcast_packets" },
 294         { "rx_bcast_packets" },
 295         { "rx_fcs_errors" },
 296         { "rx_align_errors" },
 297         { "rx_xon_pause_rcvd" },
 298         { "rx_xoff_pause_rcvd" },
 299         { "rx_mac_ctrl_rcvd" },
 300         { "rx_xoff_entered" },
 301         { "rx_frame_too_long_errors" },
 302         { "rx_jabbers" },
 303         { "rx_undersize_packets" },
 304         { "rx_in_length_errors" },
 305         { "rx_out_length_errors" },
 306         { "rx_64_or_less_octet_packets" },
 307         { "rx_65_to_127_octet_packets" },
 308         { "rx_128_to_255_octet_packets" },
 309         { "rx_256_to_511_octet_packets" },
 310         { "rx_512_to_1023_octet_packets" },
 311         { "rx_1024_to_1522_octet_packets" },
 312         { "rx_1523_to_2047_octet_packets" },
 313         { "rx_2048_to_4095_octet_packets" },
 314         { "rx_4096_to_8191_octet_packets" },
 315         { "rx_8192_to_9022_octet_packets" },
 316
 317         { "tx_octets" },
 318         { "tx_collisions" },
 319
 320         { "tx_xon_sent" },
 321         { "tx_xoff_sent" },
 322         { "tx_flow_control" },
 323         { "tx_mac_errors" },
 324         { "tx_single_collisions" },
 325         { "tx_mult_collisions" },
 326         { "tx_deferred" },
 327         { "tx_excessive_collisions" },
 328         { "tx_late_collisions" },
 329         { "tx_collide_2times" },
 330         { "tx_collide_3times" },
 331         { "tx_collide_4times" },
 332         { "tx_collide_5times" },
 333         { "tx_collide_6times" },
 334         { "tx_collide_7times" },
 335         { "tx_collide_8times" },
 336         { "tx_collide_9times" },
 337         { "tx_collide_10times" },
 338         { "tx_collide_11times" },
 339         { "tx_collide_12times" },
 340         { "tx_collide_13times" },
 341         { "tx_collide_14times" },
 342         { "tx_collide_15times" },
 343         { "tx_ucast_packets" },
 344         { "tx_mcast_packets" },
 345         { "tx_bcast_packets" },
 346         { "tx_carrier_sense_errors" },
 347         { "tx_discards" },
 348         { "tx_errors" },
 349
 350         { "dma_writeq_full" },
 351         { "dma_write_prioq_full" },
 352         { "rxbds_empty" },
 353         { "rx_discards" },
 354         { "rx_errors" },
 355         { "rx_threshold_hit" },
 356
 357         { "dma_readq_full" },
 358         { "dma_read_prioq_full" },
 359         { "tx_comp_queue_full" },
 360
 361         { "ring_set_send_prod_index" },
 362         { "ring_status_update" },
 363         { "nic_irqs" },
 364         { "nic_avoided_irqs" },
 365         { "nic_tx_threshold_hit" }
 366 };
 367
 368 static const struct {
 369         const char string[ETH_GSTRING_LEN];
 370 } ethtool_test_keys[TG3_NUM_TEST] = {
 371         { "nvram test     (online) " },
 372         { "link test      (online) " },
 373         { "register test  (offline)" },
 374         { "memory test    (offline)" },
 375         { "loopback test  (offline)" },
 376         { "interrupt test (offline)" },
 377 };
 378
 379 static void tg3_write32(struct tg3 *tp, u32 off, u32 val)
 380 {
 381         writel(val, tp->regs + off);
 382 }
 383
 384 static u32 tg3_read32(struct tg3 *tp, u32 off)
 385 {
 386         return readl(tp->regs + off);
 387 }
 388
 389 static void tg3_ape_write32(struct tg3 *tp, u32 off, u32 val)
 390 {
 391         writel(val, tp->aperegs + off);
 392 }
 393
 394 static u32 tg3_ape_read32(struct tg3 *tp, u32 off)
 395 {
 396         return readl(tp->aperegs + off);
 397 }
 398
 399 static void tg3_write_indirect_reg32(struct tg3 *tp, u32 off, u32 val)
 400 {
 401         unsigned long flags;
 402
 403         spin_lock_irqsave(&tp->indirect_lock, flags);
 404         pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off);
 405         pci_write_config_dword(tp->pdev, TG3PCI_REG_DATA, val);
 406         spin_unlock_irqrestore(&tp->indirect_lock, flags);
 407 }
 408
 409 static void tg3_write_flush_reg32(struct tg3 *tp, u32 off, u32 val)
 410 {
 411         writel(val, tp->regs + off);
 412         readl(tp->regs + off);
 413 }
 414
 415 static u32 tg3_read_indirect_reg32(struct tg3 *tp, u32 off)
 416 {
 417         unsigned long flags;
 418         u32 val;
 419
 420         spin_lock_irqsave(&tp->indirect_lock, flags);
 421         pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off);
 422         pci_read_config_dword(tp->pdev, TG3PCI_REG_DATA, &val);
 423         spin_unlock_irqrestore(&tp->indirect_lock, flags);
 424         return val;
 425 }
 426
 427 static void tg3_write_indirect_mbox(struct tg3 *tp, u32 off, u32 val)
 428 {
 429         unsigned long flags;
 430
 431         if (off == (MAILBOX_RCVRET_CON_IDX_0 + TG3_64BIT_REG_LOW)) {
 432                 pci_write_config_dword(tp->pdev, TG3PCI_RCV_RET_RING_CON_IDX +
 433                                        TG3_64BIT_REG_LOW, val);
 434                 return;
 435         }
 436         if (off == TG3_RX_STD_PROD_IDX_REG) {
 437                 pci_write_config_dword(tp->pdev, TG3PCI_STD_RING_PROD_IDX +
 438                                        TG3_64BIT_REG_LOW, val);
 439                 return;
 440         }
 441
 442         spin_lock_irqsave(&tp->indirect_lock, flags);
 443         pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off + 0x5600);
 444         pci_write_config_dword(tp->pdev, TG3PCI_REG_DATA, val);
 445         spin_unlock_irqrestore(&tp->indirect_lock, flags);
 446
 447         /* In indirect mode when disabling interrupts, we also need
 448          * to clear the interrupt bit in the GRC local ctrl register.
 449          */
 450         if ((off == (MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW)) &&
 451             (val == 0x1)) {
 452                 pci_write_config_dword(tp->pdev, TG3PCI_MISC_LOCAL_CTRL,
 453                                        tp->grc_local_ctrl|GRC_LCLCTRL_CLEARINT);
 454         }
 455 }
 456
 457 static u32 tg3_read_indirect_mbox(struct tg3 *tp, u32 off)
 458 {
 459         unsigned long flags;
 460         u32 val;
 461
 462         spin_lock_irqsave(&tp->indirect_lock, flags);
 463         pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off + 0x5600);
 464         pci_read_config_dword(tp->pdev, TG3PCI_REG_DATA, &val);
 465         spin_unlock_irqrestore(&tp->indirect_lock, flags);
 466         return val;
 467 }
 468
 469 /* usec_wait specifies the wait time in usec when writing to certain registers
 470  * where it is unsafe to read back the register without some delay.
 471  * GRC_LOCAL_CTRL is one example if the GPIOs are toggled to switch power.
 472  * TG3PCI_CLOCK_CTRL is another example if the clock frequencies are changed.
 473  */
 474 static void _tw32_flush(struct tg3 *tp, u32 off, u32 val, u32 usec_wait)
 475 {
 476         if ((tp->tg3_flags & TG3_FLAG_PCIX_TARGET_HWBUG) ||
 477             (tp->tg3_flags2 & TG3_FLG2_ICH_WORKAROUND))
 478                 /* Non-posted methods */
 479                 tp->write32(tp, off, val);
 480         else {
 481                 /* Posted method */
 482                 tg3_write32(tp, off, val);
 483                 if (usec_wait)
 484                         udelay(usec_wait);
 485                 tp->read32(tp, off);
 486         }
 487         /* Wait again after the read for the posted method to guarantee that
 488          * the wait time is met.
 489          */
 490         if (usec_wait)
 491                 udelay(usec_wait);
 492 }
 493
 494 static inline void tw32_mailbox_flush(struct tg3 *tp, u32 off, u32 val)
 495 {
 496         tp->write32_mbox(tp, off, val);
 497         if (!(tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER) &&
 498             !(tp->tg3_flags2 & TG3_FLG2_ICH_WORKAROUND))
 499                 tp->read32_mbox(tp, off);
 500 }
 501
 502 static void tg3_write32_tx_mbox(struct tg3 *tp, u32 off, u32 val)
 503 {
 504         void __iomem *mbox = tp->regs + off;
 505         writel(val, mbox);
 506         if (tp->tg3_flags & TG3_FLAG_TXD_MBOX_HWBUG)
 507                 writel(val, mbox);
 508         if (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)
 509                 readl(mbox);
 510 }
 511
 512 static u32 tg3_read32_mbox_5906(struct tg3 *tp, u32 off)
 513 {
 514         return readl(tp->regs + off + GRCMBOX_BASE);
 515 }
 516
 517 static void tg3_write32_mbox_5906(struct tg3 *tp, u32 off, u32 val)
 518 {
 519         writel(val, tp->regs + off + GRCMBOX_BASE);
 520 }
 521
 522 #define tw32_mailbox(reg, val)          tp->write32_mbox(tp, reg, val)
 523 #define tw32_mailbox_f(reg, val)        tw32_mailbox_flush(tp, (reg), (val))
 524 #define tw32_rx_mbox(reg, val)          tp->write32_rx_mbox(tp, reg, val)
 525 #define tw32_tx_mbox(reg, val)          tp->write32_tx_mbox(tp, reg, val)
 526 #define tr32_mailbox(reg)               tp->read32_mbox(tp, reg)
 527
 528 #define tw32(reg, val)                  tp->write32(tp, reg, val)
 529 #define tw32_f(reg, val)                _tw32_flush(tp, (reg), (val), 0)
 530 #define tw32_wait_f(reg, val, us)       _tw32_flush(tp, (reg), (val), (us))
 531 #define tr32(reg)                       tp->read32(tp, reg)
 532
 533 static void tg3_write_mem(struct tg3 *tp, u32 off, u32 val)
 534 {
 535         unsigned long flags;
 536
 537         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) &&
 538             (off >= NIC_SRAM_STATS_BLK) && (off < NIC_SRAM_TX_BUFFER_DESC))
 539                 return;
 540
 541         spin_lock_irqsave(&tp->indirect_lock, flags);
 542         if (tp->tg3_flags & TG3_FLAG_SRAM_USE_CONFIG) {
 543                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, off);
 544                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_DATA, val);
 545
 546                 /* Always leave this as zero. */
 547                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, 0);
 548         } else {
 549                 tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, off);
 550                 tw32_f(TG3PCI_MEM_WIN_DATA, val);
 551
 552                 /* Always leave this as zero. */
 553                 tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, 0);
 554         }
 555         spin_unlock_irqrestore(&tp->indirect_lock, flags);
 556 }
 557
 558 static void tg3_read_mem(struct tg3 *tp, u32 off, u32 *val)
 559 {
 560         unsigned long flags;
 561
 562         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) &&
 563             (off >= NIC_SRAM_STATS_BLK) && (off < NIC_SRAM_TX_BUFFER_DESC)) {
 564                 *val = 0;
 565                 return;
 566         }
 567
 568         spin_lock_irqsave(&tp->indirect_lock, flags);
 569         if (tp->tg3_flags & TG3_FLAG_SRAM_USE_CONFIG) {
 570                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, off);
 571                 pci_read_config_dword(tp->pdev, TG3PCI_MEM_WIN_DATA, val);
 572
 573                 /* Always leave this as zero. */
 574                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, 0);
 575         } else {
 576                 tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, off);
 577                 *val = tr32(TG3PCI_MEM_WIN_DATA);
 578
 579                 /* Always leave this as zero. */
 580                 tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, 0);
 581         }
 582         spin_unlock_irqrestore(&tp->indirect_lock, flags);
 583 }
 584
 585 static void tg3_ape_lock_init(struct tg3 *tp)
 586 {
 587         int i;
 588         u32 regbase;
 589
 590         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761)
 591                 regbase = TG3_APE_LOCK_GRANT;
 592         else
 593                 regbase = TG3_APE_PER_LOCK_GRANT;
 594
 595         /* Make sure the driver hasn't any stale locks. */
 596         for (i = 0; i < 8; i++)
 597                 tg3_ape_write32(tp, regbase + 4 * i, APE_LOCK_GRANT_DRIVER);
 598 }
 599
 600 static int tg3_ape_lock(struct tg3 *tp, int locknum)
 601 {
 602         int i, off;
 603         int ret = 0;
 604         u32 status, req, gnt;
 605
 606         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE))
 607                 return 0;
 608
 609         switch (locknum) {
 610         case TG3_APE_LOCK_GRC:
 611         case TG3_APE_LOCK_MEM:
 612                 break;
 613         default:
 614                 return -EINVAL;
 615         }
 616
 617         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761) {
 618                 req = TG3_APE_LOCK_REQ;
 619                 gnt = TG3_APE_LOCK_GRANT;
 620         } else {
 621                 req = TG3_APE_PER_LOCK_REQ;
 622                 gnt = TG3_APE_PER_LOCK_GRANT;
 623         }
 624
 625         off = 4 * locknum;
 626
 627         tg3_ape_write32(tp, req + off, APE_LOCK_REQ_DRIVER);
 628
 629         /* Wait for up to 1 millisecond to acquire lock. */
 630         for (i = 0; i < 100; i++) {
 631                 status = tg3_ape_read32(tp, gnt + off);
 632                 if (status == APE_LOCK_GRANT_DRIVER)
 633                         break;
 634                 udelay(10);
 635         }
 636
 637         if (status != APE_LOCK_GRANT_DRIVER) {
 638                 /* Revoke the lock request. */
 639                 tg3_ape_write32(tp, gnt + off,
 640                                 APE_LOCK_GRANT_DRIVER);
 641
 642                 ret = -EBUSY;
 643         }
 644
 645         return ret;
 646 }
 647
 648 static void tg3_ape_unlock(struct tg3 *tp, int locknum)
 649 {
 650         u32 gnt;
 651
 652         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE))
 653                 return;
 654
 655         switch (locknum) {
 656         case TG3_APE_LOCK_GRC:
 657         case TG3_APE_LOCK_MEM:
 658                 break;
 659         default:
 660                 return;
 661         }
 662
 663         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761)
 664                 gnt = TG3_APE_LOCK_GRANT;
 665         else
 666                 gnt = TG3_APE_PER_LOCK_GRANT;
 667
 668         tg3_ape_write32(tp, gnt + 4 * locknum, APE_LOCK_GRANT_DRIVER);
 669 }
 670
 671 static void tg3_disable_ints(struct tg3 *tp)
 672 {
 673         int i;
 674
 675         tw32(TG3PCI_MISC_HOST_CTRL,
 676              (tp->misc_host_ctrl | MISC_HOST_CTRL_MASK_PCI_INT));
 677         for (i = 0; i < tp->irq_max; i++)
 678                 tw32_mailbox_f(tp->napi[i].int_mbox, 0x00000001);
 679 }
 680
 681 static void tg3_enable_ints(struct tg3 *tp)
 682 {
 683         int i;
 684
 685         tp->irq_sync = 0;
 686         wmb();
 687
 688         tw32(TG3PCI_MISC_HOST_CTRL,
 689              (tp->misc_host_ctrl & ~MISC_HOST_CTRL_MASK_PCI_INT));
 690
 691         tp->coal_now = tp->coalesce_mode | HOSTCC_MODE_ENABLE;
 692         for (i = 0; i < tp->irq_cnt; i++) {
 693                 struct tg3_napi *tnapi = &tp->napi[i];
 694
 695                 tw32_mailbox_f(tnapi->int_mbox, tnapi->last_tag << 24);
 696                 if (tp->tg3_flags2 & TG3_FLG2_1SHOT_MSI)
 697                         tw32_mailbox_f(tnapi->int_mbox, tnapi->last_tag << 24);
 698
 699                 tp->coal_now |= tnapi->coal_now;
 700         }
 701
 702         /* Force an initial interrupt */
 703         if (!(tp->tg3_flags & TG3_FLAG_TAGGED_STATUS) &&
 704             (tp->napi[0].hw_status->status & SD_STATUS_UPDATED))
 705                 tw32(GRC_LOCAL_CTRL, tp->grc_local_ctrl | GRC_LCLCTRL_SETINT);
 706         else
 707                 tw32(HOSTCC_MODE, tp->coal_now);
 708
 709         tp->coal_now &= ~(tp->napi[0].coal_now | tp->napi[1].coal_now);
 710 }
 711
 712 static inline unsigned int tg3_has_work(struct tg3_napi *tnapi)
 713 {
 714         struct tg3 *tp = tnapi->tp;
 715         struct tg3_hw_status *sblk = tnapi->hw_status;
 716         unsigned int work_exists = 0;
 717
 718         /* check for phy events */
 719         if (!(tp->tg3_flags &
 720               (TG3_FLAG_USE_LINKCHG_REG |
 721                TG3_FLAG_POLL_SERDES))) {
 722                 if (sblk->status & SD_STATUS_LINK_CHG)
 723                         work_exists = 1;
 724         }
 725         /* check for RX/TX work to do */
 726         if (sblk->idx[0].tx_consumer != tnapi->tx_cons ||
 727             *(tnapi->rx_rcb_prod_idx) != tnapi->rx_rcb_ptr)
 728                 work_exists = 1;
 729
 730         return work_exists;
 731 }
 732
 733 /* tg3_int_reenable
 734  *  similar to tg3_enable_ints, but it accurately determines whether there
 735  *  is new work pending and can return without flushing the PIO write
 736  *  which reenables interrupts
 737  */
 738 static void tg3_int_reenable(struct tg3_napi *tnapi)
 739 {
 740         struct tg3 *tp = tnapi->tp;
 741
 742         tw32_mailbox(tnapi->int_mbox, tnapi->last_tag << 24);
 743         mmiowb();
 744
 745         /* When doing tagged status, this work check is unnecessary.
 746          * The last_tag we write above tells the chip which piece of
 747          * work we've completed.
 748          */
 749         if (!(tp->tg3_flags & TG3_FLAG_TAGGED_STATUS) &&
 750             tg3_has_work(tnapi))
 751                 tw32(HOSTCC_MODE, tp->coalesce_mode |
 752                      HOSTCC_MODE_ENABLE | tnapi->coal_now);
 753 }
 754
 755 static void tg3_napi_disable(struct tg3 *tp)
 756 {
 757         int i;
 758
 759         for (i = tp->irq_cnt - 1; i >= 0; i--)
 760                 napi_disable(&tp->napi[i].napi);
 761 }
 762
 763 static void tg3_napi_enable(struct tg3 *tp)
 764 {
 765         int i;
 766
 767         for (i = 0; i < tp->irq_cnt; i++)
 768                 napi_enable(&tp->napi[i].napi);
 769 }
 770
 771 static inline void tg3_netif_stop(struct tg3 *tp)
 772 {
 773         tp->dev->trans_start = jiffies; /* prevent tx timeout */
 774         tg3_napi_disable(tp);
 775         netif_tx_disable(tp->dev);
 776 }
 777
 778 static inline void tg3_netif_start(struct tg3 *tp)
 779 {
 780         /* NOTE: unconditional netif_tx_wake_all_queues is only
 781          * appropriate so long as all callers are assured to
 782          * have free tx slots (such as after tg3_init_hw)
 783          */
 784         netif_tx_wake_all_queues(tp->dev);
 785
 786         tg3_napi_enable(tp);
 787         tp->napi[0].hw_status->status |= SD_STATUS_UPDATED;
 788         tg3_enable_ints(tp);
 789 }
 790
 791 static void tg3_switch_clocks(struct tg3 *tp)
 792 {
 793         u32 clock_ctrl;
 794         u32 orig_clock_ctrl;
 795
 796         if ((tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) ||
 797             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
 798                 return;
 799
 800         clock_ctrl = tr32(TG3PCI_CLOCK_CTRL);
 801
 802         orig_clock_ctrl = clock_ctrl;
 803         clock_ctrl &= (CLOCK_CTRL_FORCE_CLKRUN |
 804                        CLOCK_CTRL_CLKRUN_OENABLE |
 805                        0x1f);
 806         tp->pci_clock_ctrl = clock_ctrl;
 807
 808         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
 809                 if (orig_clock_ctrl & CLOCK_CTRL_625_CORE) {
 810                         tw32_wait_f(TG3PCI_CLOCK_CTRL,
 811                                     clock_ctrl | CLOCK_CTRL_625_CORE, 40);
 812                 }
 813         } else if ((orig_clock_ctrl & CLOCK_CTRL_44MHZ_CORE) != 0) {
 814                 tw32_wait_f(TG3PCI_CLOCK_CTRL,
 815                             clock_ctrl |
 816                             (CLOCK_CTRL_44MHZ_CORE | CLOCK_CTRL_ALTCLK),
 817                             40);
 818                 tw32_wait_f(TG3PCI_CLOCK_CTRL,
 819                             clock_ctrl | (CLOCK_CTRL_ALTCLK),
 820                             40);
 821         }
 822         tw32_wait_f(TG3PCI_CLOCK_CTRL, clock_ctrl, 40);
 823 }
 824
 825 #define PHY_BUSY_LOOPS  5000
 826
 827 static int tg3_readphy(struct tg3 *tp, int reg, u32 *val)
 828 {
 829         u32 frame_val;
 830         unsigned int loops;
 831         int ret;
 832
 833         if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
 834                 tw32_f(MAC_MI_MODE,
 835                      (tp->mi_mode & ~MAC_MI_MODE_AUTO_POLL));
 836                 udelay(80);
 837         }
 838
 839         *val = 0x0;
 840
 841         frame_val  = ((tp->phy_addr << MI_COM_PHY_ADDR_SHIFT) &
 842                       MI_COM_PHY_ADDR_MASK);
 843         frame_val |= ((reg << MI_COM_REG_ADDR_SHIFT) &
 844                       MI_COM_REG_ADDR_MASK);
 845         frame_val |= (MI_COM_CMD_READ | MI_COM_START);
 846
 847         tw32_f(MAC_MI_COM, frame_val);
 848
 849         loops = PHY_BUSY_LOOPS;
 850         while (loops != 0) {
 851                 udelay(10);
 852                 frame_val = tr32(MAC_MI_COM);
 853
 854                 if ((frame_val & MI_COM_BUSY) == 0) {
 855                         udelay(5);
 856                         frame_val = tr32(MAC_MI_COM);
 857                         break;
 858                 }
 859                 loops -= 1;
 860         }
 861
 862         ret = -EBUSY;
 863         if (loops != 0) {
 864                 *val = frame_val & MI_COM_DATA_MASK;
 865                 ret = 0;
 866         }
 867
 868         if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
 869                 tw32_f(MAC_MI_MODE, tp->mi_mode);
 870                 udelay(80);
 871         }
 872
 873         return ret;
 874 }
 875
 876 static int tg3_writephy(struct tg3 *tp, int reg, u32 val)
 877 {
 878         u32 frame_val;
 879         unsigned int loops;
 880         int ret;
 881
 882         if ((tp->phy_flags & TG3_PHYFLG_IS_FET) &&
 883             (reg == MII_TG3_CTRL || reg == MII_TG3_AUX_CTRL))
 884                 return 0;
 885
 886         if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
 887                 tw32_f(MAC_MI_MODE,
 888                      (tp->mi_mode & ~MAC_MI_MODE_AUTO_POLL));
 889                 udelay(80);
 890         }
 891
 892         frame_val  = ((tp->phy_addr << MI_COM_PHY_ADDR_SHIFT) &
 893                       MI_COM_PHY_ADDR_MASK);
 894         frame_val |= ((reg << MI_COM_REG_ADDR_SHIFT) &
 895                       MI_COM_REG_ADDR_MASK);
 896         frame_val |= (val & MI_COM_DATA_MASK);
 897         frame_val |= (MI_COM_CMD_WRITE | MI_COM_START);
 898
 899         tw32_f(MAC_MI_COM, frame_val);
 900
 901         loops = PHY_BUSY_LOOPS;
 902         while (loops != 0) {
 903                 udelay(10);
 904                 frame_val = tr32(MAC_MI_COM);
 905                 if ((frame_val & MI_COM_BUSY) == 0) {
 906                         udelay(5);
 907                         frame_val = tr32(MAC_MI_COM);
 908                         break;
 909                 }
 910                 loops -= 1;
 911         }
 912
 913         ret = -EBUSY;
 914         if (loops != 0)
 915                 ret = 0;
 916
 917         if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
 918                 tw32_f(MAC_MI_MODE, tp->mi_mode);
 919                 udelay(80);
 920         }
 921
 922         return ret;
 923 }
 924
 925 static int tg3_bmcr_reset(struct tg3 *tp)
 926 {
 927         u32 phy_control;
 928         int limit, err;
 929
 930         /* OK, reset it, and poll the BMCR_RESET bit until it
 931          * clears or we time out.
 932          */
 933         phy_control = BMCR_RESET;
 934         err = tg3_writephy(tp, MII_BMCR, phy_control);
 935         if (err != 0)
 936                 return -EBUSY;
 937
 938         limit = 5000;
 939         while (limit--) {
 940                 err = tg3_readphy(tp, MII_BMCR, &phy_control);
 941                 if (err != 0)
 942                         return -EBUSY;
 943
 944                 if ((phy_control & BMCR_RESET) == 0) {
 945                         udelay(40);
 946                         break;
 947                 }
 948                 udelay(10);
 949         }
 950         if (limit < 0)
 951                 return -EBUSY;
 952
 953         return 0;
 954 }
 955
 956 static int tg3_mdio_read(struct mii_bus *bp, int mii_id, int reg)
 957 {
 958         struct tg3 *tp = bp->priv;
 959         u32 val;
 960
 961         spin_lock_bh(&tp->lock);
 962
 963         if (tg3_readphy(tp, reg, &val))
 964                 val = -EIO;
 965
 966         spin_unlock_bh(&tp->lock);
 967
 968         return val;
 969 }
 970
 971 static int tg3_mdio_write(struct mii_bus *bp, int mii_id, int reg, u16 val)
 972 {
 973         struct tg3 *tp = bp->priv;
 974         u32 ret = 0;
 975
 976         spin_lock_bh(&tp->lock);
 977
 978         if (tg3_writephy(tp, reg, val))
 979                 ret = -EIO;
 980
 981         spin_unlock_bh(&tp->lock);
 982
 983         return ret;
 984 }
 985
 986 static int tg3_mdio_reset(struct mii_bus *bp)
 987 {
 988         return 0;
 989 }
 990
 991 static void tg3_mdio_config_5785(struct tg3 *tp)
 992 {
 993         u32 val;
 994         struct phy_device *phydev;
 995
 996         phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
 997         switch (phydev->drv->phy_id & phydev->drv->phy_id_mask) {
 998         case PHY_ID_BCM50610:
 999         case PHY_ID_BCM50610M:
1000                 val = MAC_PHYCFG2_50610_LED_MODES;
1001                 break;
1002         case PHY_ID_BCMAC131:
1003                 val = MAC_PHYCFG2_AC131_LED_MODES;
1004                 break;
1005         case PHY_ID_RTL8211C:
1006                 val = MAC_PHYCFG2_RTL8211C_LED_MODES;
1007                 break;
1008         case PHY_ID_RTL8201E:
1009                 val = MAC_PHYCFG2_RTL8201E_LED_MODES;
1010                 break;
1011         default:
1012                 return;
1013         }
1014
1015         if (phydev->interface != PHY_INTERFACE_MODE_RGMII) {
1016                 tw32(MAC_PHYCFG2, val);
1017
1018                 val = tr32(MAC_PHYCFG1);
1019                 val &= ~(MAC_PHYCFG1_RGMII_INT |
1020                          MAC_PHYCFG1_RXCLK_TO_MASK | MAC_PHYCFG1_TXCLK_TO_MASK);
1021                 val |= MAC_PHYCFG1_RXCLK_TIMEOUT | MAC_PHYCFG1_TXCLK_TIMEOUT;
1022                 tw32(MAC_PHYCFG1, val);
1023
1024                 return;
1025         }
1026
1027         if (!(tp->tg3_flags3 & TG3_FLG3_RGMII_INBAND_DISABLE))
1028                 val |= MAC_PHYCFG2_EMODE_MASK_MASK |
1029                        MAC_PHYCFG2_FMODE_MASK_MASK |
1030                        MAC_PHYCFG2_GMODE_MASK_MASK |
1031                        MAC_PHYCFG2_ACT_MASK_MASK   |
1032                        MAC_PHYCFG2_QUAL_MASK_MASK |
1033                        MAC_PHYCFG2_INBAND_ENABLE;
1034
1035         tw32(MAC_PHYCFG2, val);
1036
1037         val = tr32(MAC_PHYCFG1);
1038         val &= ~(MAC_PHYCFG1_RXCLK_TO_MASK | MAC_PHYCFG1_TXCLK_TO_MASK |
1039                  MAC_PHYCFG1_RGMII_EXT_RX_DEC | MAC_PHYCFG1_RGMII_SND_STAT_EN);
1040         if (!(tp->tg3_flags3 & TG3_FLG3_RGMII_INBAND_DISABLE)) {
1041                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_RX_EN)
1042                         val |= MAC_PHYCFG1_RGMII_EXT_RX_DEC;
1043                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_TX_EN)
1044                         val |= MAC_PHYCFG1_RGMII_SND_STAT_EN;
1045         }
1046         val |= MAC_PHYCFG1_RXCLK_TIMEOUT | MAC_PHYCFG1_TXCLK_TIMEOUT |
1047                MAC_PHYCFG1_RGMII_INT | MAC_PHYCFG1_TXC_DRV;
1048         tw32(MAC_PHYCFG1, val);
1049
1050         val = tr32(MAC_EXT_RGMII_MODE);
1051         val &= ~(MAC_RGMII_MODE_RX_INT_B |
1052                  MAC_RGMII_MODE_RX_QUALITY |
1053                  MAC_RGMII_MODE_RX_ACTIVITY |
1054                  MAC_RGMII_MODE_RX_ENG_DET |
1055                  MAC_RGMII_MODE_TX_ENABLE |
1056                  MAC_RGMII_MODE_TX_LOWPWR |
1057                  MAC_RGMII_MODE_TX_RESET);
1058         if (!(tp->tg3_flags3 & TG3_FLG3_RGMII_INBAND_DISABLE)) {
1059                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_RX_EN)
1060                         val |= MAC_RGMII_MODE_RX_INT_B |
1061                                MAC_RGMII_MODE_RX_QUALITY |
1062                                MAC_RGMII_MODE_RX_ACTIVITY |
1063                                MAC_RGMII_MODE_RX_ENG_DET;
1064                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_TX_EN)
1065                         val |= MAC_RGMII_MODE_TX_ENABLE |
1066                                MAC_RGMII_MODE_TX_LOWPWR |
1067                                MAC_RGMII_MODE_TX_RESET;
1068         }
1069         tw32(MAC_EXT_RGMII_MODE, val);
1070 }
1071
1072 static void tg3_mdio_start(struct tg3 *tp)
1073 {
1074         tp->mi_mode &= ~MAC_MI_MODE_AUTO_POLL;
1075         tw32_f(MAC_MI_MODE, tp->mi_mode);
1076         udelay(80);
1077
1078         if ((tp->tg3_flags3 & TG3_FLG3_MDIOBUS_INITED) &&
1079             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
1080                 tg3_mdio_config_5785(tp);
1081 }
1082
1083 static int tg3_mdio_init(struct tg3 *tp)
1084 {
1085         int i;
1086         u32 reg;
1087         struct phy_device *phydev;
1088
1089         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
1090             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719) {
1091                 u32 is_serdes;
1092
1093                 tp->phy_addr = PCI_FUNC(tp->pdev->devfn) + 1;
1094
1095                 if (tp->pci_chip_rev_id != CHIPREV_ID_5717_A0)
1096                         is_serdes = tr32(SG_DIG_STATUS) & SG_DIG_IS_SERDES;
1097                 else
1098                         is_serdes = tr32(TG3_CPMU_PHY_STRAP) &
1099                                     TG3_CPMU_PHY_STRAP_IS_SERDES;
1100                 if (is_serdes)
1101                         tp->phy_addr += 7;
1102         } else
1103                 tp->phy_addr = TG3_PHY_MII_ADDR;
1104
1105         tg3_mdio_start(tp);
1106
1107         if (!(tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) ||
1108             (tp->tg3_flags3 & TG3_FLG3_MDIOBUS_INITED))
1109                 return 0;
1110
1111         tp->mdio_bus = mdiobus_alloc();
1112         if (tp->mdio_bus == NULL)
1113                 return -ENOMEM;
1114
1115         tp->mdio_bus->name     = "tg3 mdio bus";
1116         snprintf(tp->mdio_bus->id, MII_BUS_ID_SIZE, "%x",
1117                  (tp->pdev->bus->number << 8) | tp->pdev->devfn);
1118         tp->mdio_bus->priv     = tp;
1119         tp->mdio_bus->parent   = &tp->pdev->dev;
1120         tp->mdio_bus->read     = &tg3_mdio_read;
1121         tp->mdio_bus->write    = &tg3_mdio_write;
1122         tp->mdio_bus->reset    = &tg3_mdio_reset;
1123         tp->mdio_bus->phy_mask = ~(1 << TG3_PHY_MII_ADDR);
1124         tp->mdio_bus->irq      = &tp->mdio_irq[0];
1125
1126         for (i = 0; i < PHY_MAX_ADDR; i++)
1127                 tp->mdio_bus->irq[i] = PHY_POLL;
1128
1129         /* The bus registration will look for all the PHYs on the mdio bus.
1130          * Unfortunately, it does not ensure the PHY is powered up before
1131          * accessing the PHY ID registers.  A chip reset is the
1132          * quickest way to bring the device back to an operational state..
1133          */
1134         if (tg3_readphy(tp, MII_BMCR, &reg) || (reg & BMCR_PDOWN))
1135                 tg3_bmcr_reset(tp);
1136
1137         i = mdiobus_register(tp->mdio_bus);
1138         if (i) {
1139                 dev_warn(&tp->pdev->dev, "mdiobus_reg failed (0x%x)\n", i);
1140                 mdiobus_free(tp->mdio_bus);
1141                 return i;
1142         }
1143
1144         phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
1145
1146         if (!phydev || !phydev->drv) {
1147                 dev_warn(&tp->pdev->dev, "No PHY devices\n");
1148                 mdiobus_unregister(tp->mdio_bus);
1149                 mdiobus_free(tp->mdio_bus);
1150                 return -ENODEV;
1151         }
1152
1153         switch (phydev->drv->phy_id & phydev->drv->phy_id_mask) {
1154         case PHY_ID_BCM57780:
1155                 phydev->interface = PHY_INTERFACE_MODE_GMII;
1156                 phydev->dev_flags |= PHY_BRCM_AUTO_PWRDWN_ENABLE;
1157                 break;
1158         case PHY_ID_BCM50610:
1159         case PHY_ID_BCM50610M:
1160                 phydev->dev_flags |= PHY_BRCM_CLEAR_RGMII_MODE |
1161                                      PHY_BRCM_RX_REFCLK_UNUSED |
1162                                      PHY_BRCM_DIS_TXCRXC_NOENRGY |
1163                                      PHY_BRCM_AUTO_PWRDWN_ENABLE;
1164                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_INBAND_DISABLE)
1165                         phydev->dev_flags |= PHY_BRCM_STD_IBND_DISABLE;
1166                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_RX_EN)
1167                         phydev->dev_flags |= PHY_BRCM_EXT_IBND_RX_ENABLE;
1168                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_TX_EN)
1169                         phydev->dev_flags |= PHY_BRCM_EXT_IBND_TX_ENABLE;
1170                 /* fallthru */
1171         case PHY_ID_RTL8211C:
1172                 phydev->interface = PHY_INTERFACE_MODE_RGMII;
1173                 break;
1174         case PHY_ID_RTL8201E:
1175         case PHY_ID_BCMAC131:
1176                 phydev->interface = PHY_INTERFACE_MODE_MII;
1177                 phydev->dev_flags |= PHY_BRCM_AUTO_PWRDWN_ENABLE;
1178                 tp->phy_flags |= TG3_PHYFLG_IS_FET;
1179                 break;
1180         }
1181
1182         tp->tg3_flags3 |= TG3_FLG3_MDIOBUS_INITED;
1183
1184         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
1185                 tg3_mdio_config_5785(tp);
1186
1187         return 0;
1188 }
1189
1190 static void tg3_mdio_fini(struct tg3 *tp)
1191 {
1192         if (tp->tg3_flags3 & TG3_FLG3_MDIOBUS_INITED) {
1193                 tp->tg3_flags3 &= ~TG3_FLG3_MDIOBUS_INITED;
1194                 mdiobus_unregister(tp->mdio_bus);
1195                 mdiobus_free(tp->mdio_bus);
1196         }
1197 }
1198
1199 /* tp->lock is held. */
1200 static inline void tg3_generate_fw_event(struct tg3 *tp)
1201 {
1202         u32 val;
1203
1204         val = tr32(GRC_RX_CPU_EVENT);
1205         val |= GRC_RX_CPU_DRIVER_EVENT;
1206         tw32_f(GRC_RX_CPU_EVENT, val);
1207
1208         tp->last_event_jiffies = jiffies;
1209 }
1210
1211 #define TG3_FW_EVENT_TIMEOUT_USEC 2500
1212
1213 /* tp->lock is held. */
1214 static void tg3_wait_for_event_ack(struct tg3 *tp)
1215 {
1216         int i;
1217         unsigned int delay_cnt;
1218         long time_remain;
1219
1220         /* If enough time has passed, no wait is necessary. */
1221         time_remain = (long)(tp->last_event_jiffies + 1 +
1222                       usecs_to_jiffies(TG3_FW_EVENT_TIMEOUT_USEC)) -
1223                       (long)jiffies;
1224         if (time_remain < 0)
1225                 return;
1226
1227         /* Check if we can shorten the wait time. */
1228         delay_cnt = jiffies_to_usecs(time_remain);
1229         if (delay_cnt > TG3_FW_EVENT_TIMEOUT_USEC)
1230                 delay_cnt = TG3_FW_EVENT_TIMEOUT_USEC;
1231         delay_cnt = (delay_cnt >> 3) + 1;
1232
1233         for (i = 0; i < delay_cnt; i++) {
1234                 if (!(tr32(GRC_RX_CPU_EVENT) & GRC_RX_CPU_DRIVER_EVENT))
1235                         break;
1236                 udelay(8);
1237         }
1238 }
1239
1240 /* tp->lock is held. */
1241 static void tg3_ump_link_report(struct tg3 *tp)
1242 {
1243         u32 reg;
1244         u32 val;
1245
1246         if (!(tp->tg3_flags2 & TG3_FLG2_5780_CLASS) ||
1247             !(tp->tg3_flags  & TG3_FLAG_ENABLE_ASF))
1248                 return;
1249
1250         tg3_wait_for_event_ack(tp);
1251
1252         tg3_write_mem(tp, NIC_SRAM_FW_CMD_MBOX, FWCMD_NICDRV_LINK_UPDATE);
1253
1254         tg3_write_mem(tp, NIC_SRAM_FW_CMD_LEN_MBOX, 14);
1255
1256         val = 0;
1257         if (!tg3_readphy(tp, MII_BMCR, &reg))
1258                 val = reg << 16;
1259         if (!tg3_readphy(tp, MII_BMSR, &reg))
1260                 val |= (reg & 0xffff);
1261         tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX, val);
1262
1263         val = 0;
1264         if (!tg3_readphy(tp, MII_ADVERTISE, &reg))
1265                 val = reg << 16;
1266         if (!tg3_readphy(tp, MII_LPA, &reg))
1267                 val |= (reg & 0xffff);
1268         tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 4, val);
1269
1270         val = 0;
1271         if (!(tp->phy_flags & TG3_PHYFLG_MII_SERDES)) {
1272                 if (!tg3_readphy(tp, MII_CTRL1000, &reg))
1273                         val = reg << 16;
1274                 if (!tg3_readphy(tp, MII_STAT1000, &reg))
1275                         val |= (reg & 0xffff);
1276         }
1277         tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 8, val);
1278
1279         if (!tg3_readphy(tp, MII_PHYADDR, &reg))
1280                 val = reg << 16;
1281         else
1282                 val = 0;
1283         tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 12, val);
1284
1285         tg3_generate_fw_event(tp);
1286 }
1287
1288 static void tg3_link_report(struct tg3 *tp)
1289 {
1290         if (!netif_carrier_ok(tp->dev)) {
1291                 netif_info(tp, link, tp->dev, "Link is down\n");
1292                 tg3_ump_link_report(tp);
1293         } else if (netif_msg_link(tp)) {
1294                 netdev_info(tp->dev, "Link is up at %d Mbps, %s duplex\n",
1295                             (tp->link_config.active_speed == SPEED_1000 ?
1296                              1000 :
1297                              (tp->link_config.active_speed == SPEED_100 ?
1298                               100 : 10)),
1299                             (tp->link_config.active_duplex == DUPLEX_FULL ?
1300                              "full" : "half"));
1301
1302                 netdev_info(tp->dev, "Flow control is %s for TX and %s for RX\n",
1303                             (tp->link_config.active_flowctrl & FLOW_CTRL_TX) ?
1304                             "on" : "off",
1305                             (tp->link_config.active_flowctrl & FLOW_CTRL_RX) ?
1306                             "on" : "off");
1307                 tg3_ump_link_report(tp);
1308         }
1309 }
1310
1311 static u16 tg3_advert_flowctrl_1000T(u8 flow_ctrl)
1312 {
1313         u16 miireg;
1314
1315         if ((flow_ctrl & FLOW_CTRL_TX) && (flow_ctrl & FLOW_CTRL_RX))
1316                 miireg = ADVERTISE_PAUSE_CAP;
1317         else if (flow_ctrl & FLOW_CTRL_TX)
1318                 miireg = ADVERTISE_PAUSE_ASYM;
1319         else if (flow_ctrl & FLOW_CTRL_RX)
1320                 miireg = ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
1321         else
1322                 miireg = 0;
1323
1324         return miireg;
1325 }
1326
1327 static u16 tg3_advert_flowctrl_1000X(u8 flow_ctrl)
1328 {
1329         u16 miireg;
1330
1331         if ((flow_ctrl & FLOW_CTRL_TX) && (flow_ctrl & FLOW_CTRL_RX))
1332                 miireg = ADVERTISE_1000XPAUSE;
1333         else if (flow_ctrl & FLOW_CTRL_TX)
1334                 miireg = ADVERTISE_1000XPSE_ASYM;
1335         else if (flow_ctrl & FLOW_CTRL_RX)
1336                 miireg = ADVERTISE_1000XPAUSE | ADVERTISE_1000XPSE_ASYM;
1337         else
1338                 miireg = 0;
1339
1340         return miireg;
1341 }
1342
1343 static u8 tg3_resolve_flowctrl_1000X(u16 lcladv, u16 rmtadv)
1344 {
1345         u8 cap = 0;
1346
1347         if (lcladv & ADVERTISE_1000XPAUSE) {
1348                 if (lcladv & ADVERTISE_1000XPSE_ASYM) {
1349                         if (rmtadv & LPA_1000XPAUSE)
1350                                 cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
1351                         else if (rmtadv & LPA_1000XPAUSE_ASYM)
1352                                 cap = FLOW_CTRL_RX;
1353                 } else {
1354                         if (rmtadv & LPA_1000XPAUSE)
1355                                 cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
1356                 }
1357         } else if (lcladv & ADVERTISE_1000XPSE_ASYM) {
1358                 if ((rmtadv & LPA_1000XPAUSE) && (rmtadv & LPA_1000XPAUSE_ASYM))
1359                         cap = FLOW_CTRL_TX;
1360         }
1361
1362         return cap;
1363 }
1364
1365 static void tg3_setup_flow_control(struct tg3 *tp, u32 lcladv, u32 rmtadv)
1366 {
1367         u8 autoneg;
1368         u8 flowctrl = 0;
1369         u32 old_rx_mode = tp->rx_mode;
1370         u32 old_tx_mode = tp->tx_mode;
1371
1372         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB)
1373                 autoneg = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR]->autoneg;
1374         else
1375                 autoneg = tp->link_config.autoneg;
1376
1377         if (autoneg == AUTONEG_ENABLE &&
1378             (tp->tg3_flags & TG3_FLAG_PAUSE_AUTONEG)) {
1379                 if (tp->phy_flags & TG3_PHYFLG_ANY_SERDES)
1380                         flowctrl = tg3_resolve_flowctrl_1000X(lcladv, rmtadv);
1381                 else
1382                         flowctrl = mii_resolve_flowctrl_fdx(lcladv, rmtadv);
1383         } else
1384                 flowctrl = tp->link_config.flowctrl;
1385
1386         tp->link_config.active_flowctrl = flowctrl;
1387
1388         if (flowctrl & FLOW_CTRL_RX)
1389                 tp->rx_mode |= RX_MODE_FLOW_CTRL_ENABLE;
1390         else
1391                 tp->rx_mode &= ~RX_MODE_FLOW_CTRL_ENABLE;
1392
1393         if (old_rx_mode != tp->rx_mode)
1394                 tw32_f(MAC_RX_MODE, tp->rx_mode);
1395
1396         if (flowctrl & FLOW_CTRL_TX)
1397                 tp->tx_mode |= TX_MODE_FLOW_CTRL_ENABLE;
1398         else
1399                 tp->tx_mode &= ~TX_MODE_FLOW_CTRL_ENABLE;
1400
1401         if (old_tx_mode != tp->tx_mode)
1402                 tw32_f(MAC_TX_MODE, tp->tx_mode);
1403 }
1404
1405 static void tg3_adjust_link(struct net_device *dev)
1406 {
1407         u8 oldflowctrl, linkmesg = 0;
1408         u32 mac_mode, lcl_adv, rmt_adv;
1409         struct tg3 *tp = netdev_priv(dev);
1410         struct phy_device *phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
1411
1412         spin_lock_bh(&tp->lock);
1413
1414         mac_mode = tp->mac_mode & ~(MAC_MODE_PORT_MODE_MASK |
1415                                     MAC_MODE_HALF_DUPLEX);
1416
1417         oldflowctrl = tp->link_config.active_flowctrl;
1418
1419         if (phydev->link) {
1420                 lcl_adv = 0;
1421                 rmt_adv = 0;
1422
1423                 if (phydev->speed == SPEED_100 || phydev->speed == SPEED_10)
1424                         mac_mode |= MAC_MODE_PORT_MODE_MII;
1425                 else if (phydev->speed == SPEED_1000 ||
1426                          GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785)
1427                         mac_mode |= MAC_MODE_PORT_MODE_GMII;
1428                 else
1429                         mac_mode |= MAC_MODE_PORT_MODE_MII;
1430
1431                 if (phydev->duplex == DUPLEX_HALF)
1432                         mac_mode |= MAC_MODE_HALF_DUPLEX;
1433                 else {
1434                         lcl_adv = tg3_advert_flowctrl_1000T(
1435                                   tp->link_config.flowctrl);
1436
1437                         if (phydev->pause)
1438                                 rmt_adv = LPA_PAUSE_CAP;
1439                         if (phydev->asym_pause)
1440                                 rmt_adv |= LPA_PAUSE_ASYM;
1441                 }
1442
1443                 tg3_setup_flow_control(tp, lcl_adv, rmt_adv);
1444         } else
1445                 mac_mode |= MAC_MODE_PORT_MODE_GMII;
1446
1447         if (mac_mode != tp->mac_mode) {
1448                 tp->mac_mode = mac_mode;
1449                 tw32_f(MAC_MODE, tp->mac_mode);
1450                 udelay(40);
1451         }
1452
1453         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785) {
1454                 if (phydev->speed == SPEED_10)
1455                         tw32(MAC_MI_STAT,
1456                              MAC_MI_STAT_10MBPS_MODE |
1457                              MAC_MI_STAT_LNKSTAT_ATTN_ENAB);
1458                 else
1459                         tw32(MAC_MI_STAT, MAC_MI_STAT_LNKSTAT_ATTN_ENAB);
1460         }
1461
1462         if (phydev->speed == SPEED_1000 && phydev->duplex == DUPLEX_HALF)
1463                 tw32(MAC_TX_LENGTHS,
1464                      ((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
1465                       (6 << TX_LENGTHS_IPG_SHIFT) |
1466                       (0xff << TX_LENGTHS_SLOT_TIME_SHIFT)));
1467         else
1468                 tw32(MAC_TX_LENGTHS,
1469                      ((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
1470                       (6 << TX_LENGTHS_IPG_SHIFT) |
1471                       (32 << TX_LENGTHS_SLOT_TIME_SHIFT)));
1472
1473         if ((phydev->link && tp->link_config.active_speed == SPEED_INVALID) ||
1474             (!phydev->link && tp->link_config.active_speed != SPEED_INVALID) ||
1475             phydev->speed != tp->link_config.active_speed ||
1476             phydev->duplex != tp->link_config.active_duplex ||
1477             oldflowctrl != tp->link_config.active_flowctrl)
1478                 linkmesg = 1;
1479
1480         tp->link_config.active_speed = phydev->speed;
1481         tp->link_config.active_duplex = phydev->duplex;
1482
1483         spin_unlock_bh(&tp->lock);
1484
1485         if (linkmesg)
1486                 tg3_link_report(tp);
1487 }
1488
1489 static int tg3_phy_init(struct tg3 *tp)
1490 {
1491         struct phy_device *phydev;
1492
1493         if (tp->phy_flags & TG3_PHYFLG_IS_CONNECTED)
1494                 return 0;
1495
1496         /* Bring the PHY back to a known state. */
1497         tg3_bmcr_reset(tp);
1498
1499         phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
1500
1501         /* Attach the MAC to the PHY. */
1502         phydev = phy_connect(tp->dev, dev_name(&phydev->dev), tg3_adjust_link,
1503                              phydev->dev_flags, phydev->interface);
1504         if (IS_ERR(phydev)) {
1505                 dev_err(&tp->pdev->dev, "Could not attach to PHY\n");
1506                 return PTR_ERR(phydev);
1507         }
1508
1509         /* Mask with MAC supported features. */
1510         switch (phydev->interface) {
1511         case PHY_INTERFACE_MODE_GMII:
1512         case PHY_INTERFACE_MODE_RGMII:
1513                 if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY)) {
1514                         phydev->supported &= (PHY_GBIT_FEATURES |
1515                                               SUPPORTED_Pause |
1516                                               SUPPORTED_Asym_Pause);
1517                         break;
1518                 }
1519                 /* fallthru */
1520         case PHY_INTERFACE_MODE_MII:
1521                 phydev->supported &= (PHY_BASIC_FEATURES |
1522                                       SUPPORTED_Pause |
1523                                       SUPPORTED_Asym_Pause);
1524                 break;
1525         default:
1526                 phy_disconnect(tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR]);
1527                 return -EINVAL;
1528         }
1529
1530         tp->phy_flags |= TG3_PHYFLG_IS_CONNECTED;
1531
1532         phydev->advertising = phydev->supported;
1533
1534         return 0;
1535 }
1536
1537 static void tg3_phy_start(struct tg3 *tp)
1538 {
1539         struct phy_device *phydev;
1540
1541         if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
1542                 return;
1543
1544         phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
1545
1546         if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER) {
1547                 tp->phy_flags &= ~TG3_PHYFLG_IS_LOW_POWER;
1548                 phydev->speed = tp->link_config.orig_speed;
1549                 phydev->duplex = tp->link_config.orig_duplex;
1550                 phydev->autoneg = tp->link_config.orig_autoneg;
1551                 phydev->advertising = tp->link_config.orig_advertising;
1552         }
1553
1554         phy_start(phydev);
1555
1556         phy_start_aneg(phydev);
1557 }
1558
1559 static void tg3_phy_stop(struct tg3 *tp)
1560 {
1561         if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
1562                 return;
1563
1564         phy_stop(tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR]);
1565 }
1566
1567 static void tg3_phy_fini(struct tg3 *tp)
1568 {
1569         if (tp->phy_flags & TG3_PHYFLG_IS_CONNECTED) {
1570                 phy_disconnect(tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR]);
1571                 tp->phy_flags &= ~TG3_PHYFLG_IS_CONNECTED;
1572         }
1573 }
1574
1575 static int tg3_phydsp_write(struct tg3 *tp, u32 reg, u32 val)
1576 {
1577         int err;
1578
1579         err = tg3_writephy(tp, MII_TG3_DSP_ADDRESS, reg);
1580         if (!err)
1581                 err = tg3_writephy(tp, MII_TG3_DSP_RW_PORT, val);
1582
1583         return err;
1584 }
1585
1586 static void tg3_phy_fet_toggle_apd(struct tg3 *tp, bool enable)
1587 {
1588         u32 phytest;
1589
1590         if (!tg3_readphy(tp, MII_TG3_FET_TEST, &phytest)) {
1591                 u32 phy;
1592
1593                 tg3_writephy(tp, MII_TG3_FET_TEST,
1594                              phytest | MII_TG3_FET_SHADOW_EN);
1595                 if (!tg3_readphy(tp, MII_TG3_FET_SHDW_AUXSTAT2, &phy)) {
1596                         if (enable)
1597                                 phy |= MII_TG3_FET_SHDW_AUXSTAT2_APD;
1598                         else
1599                                 phy &= ~MII_TG3_FET_SHDW_AUXSTAT2_APD;
1600                         tg3_writephy(tp, MII_TG3_FET_SHDW_AUXSTAT2, phy);
1601                 }
1602                 tg3_writephy(tp, MII_TG3_FET_TEST, phytest);
1603         }
1604 }
1605
1606 static void tg3_phy_toggle_apd(struct tg3 *tp, bool enable)
1607 {
1608         u32 reg;
1609
1610         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ||
1611             ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
1612               GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719) &&
1613              (tp->phy_flags & TG3_PHYFLG_MII_SERDES)))
1614                 return;
1615
1616         if (tp->phy_flags & TG3_PHYFLG_IS_FET) {
1617                 tg3_phy_fet_toggle_apd(tp, enable);
1618                 return;
1619         }
1620
1621         reg = MII_TG3_MISC_SHDW_WREN |
1622               MII_TG3_MISC_SHDW_SCR5_SEL |
1623               MII_TG3_MISC_SHDW_SCR5_LPED |
1624               MII_TG3_MISC_SHDW_SCR5_DLPTLM |
1625               MII_TG3_MISC_SHDW_SCR5_SDTL |
1626               MII_TG3_MISC_SHDW_SCR5_C125OE;
1627         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5784 || !enable)
1628                 reg |= MII_TG3_MISC_SHDW_SCR5_DLLAPD;
1629
1630         tg3_writephy(tp, MII_TG3_MISC_SHDW, reg);
1631
1632
1633         reg = MII_TG3_MISC_SHDW_WREN |
1634               MII_TG3_MISC_SHDW_APD_SEL |
1635               MII_TG3_MISC_SHDW_APD_WKTM_84MS;
1636         if (enable)
1637                 reg |= MII_TG3_MISC_SHDW_APD_ENABLE;
1638
1639         tg3_writephy(tp, MII_TG3_MISC_SHDW, reg);
1640 }
1641
1642 static void tg3_phy_toggle_automdix(struct tg3 *tp, int enable)
1643 {
1644         u32 phy;
1645
1646         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ||
1647             (tp->phy_flags & TG3_PHYFLG_ANY_SERDES))
1648                 return;
1649
1650         if (tp->phy_flags & TG3_PHYFLG_IS_FET) {
1651                 u32 ephy;
1652
1653                 if (!tg3_readphy(tp, MII_TG3_FET_TEST, &ephy)) {
1654                         u32 reg = MII_TG3_FET_SHDW_MISCCTRL;
1655
1656                         tg3_writephy(tp, MII_TG3_FET_TEST,
1657                                      ephy | MII_TG3_FET_SHADOW_EN);
1658                         if (!tg3_readphy(tp, reg, &phy)) {
1659                                 if (enable)
1660                                         phy |= MII_TG3_FET_SHDW_MISCCTRL_MDIX;
1661                                 else
1662                                         phy &= ~MII_TG3_FET_SHDW_MISCCTRL_MDIX;
1663                                 tg3_writephy(tp, reg, phy);
1664                         }
1665                         tg3_writephy(tp, MII_TG3_FET_TEST, ephy);
1666                 }
1667         } else {
1668                 phy = MII_TG3_AUXCTL_MISC_RDSEL_MISC |
1669                       MII_TG3_AUXCTL_SHDWSEL_MISC;
1670                 if (!tg3_writephy(tp, MII_TG3_AUX_CTRL, phy) &&
1671                     !tg3_readphy(tp, MII_TG3_AUX_CTRL, &phy)) {
1672                         if (enable)
1673                                 phy |= MII_TG3_AUXCTL_MISC_FORCE_AMDIX;
1674                         else
1675                                 phy &= ~MII_TG3_AUXCTL_MISC_FORCE_AMDIX;
1676                         phy |= MII_TG3_AUXCTL_MISC_WREN;
1677                         tg3_writephy(tp, MII_TG3_AUX_CTRL, phy);
1678                 }
1679         }
1680 }
1681
1682 static void tg3_phy_set_wirespeed(struct tg3 *tp)
1683 {
1684         u32 val;
1685
1686         if (tp->phy_flags & TG3_PHYFLG_NO_ETH_WIRE_SPEED)
1687                 return;
1688
1689         if (!tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x7007) &&
1690             !tg3_readphy(tp, MII_TG3_AUX_CTRL, &val))
1691                 tg3_writephy(tp, MII_TG3_AUX_CTRL,
1692                              (val | (1 << 15) | (1 << 4)));
1693 }
1694
1695 static void tg3_phy_apply_otp(struct tg3 *tp)
1696 {
1697         u32 otp, phy;
1698
1699         if (!tp->phy_otp)
1700                 return;
1701
1702         otp = tp->phy_otp;
1703
1704         /* Enable SM_DSP clock and tx 6dB coding. */
1705         phy = MII_TG3_AUXCTL_SHDWSEL_AUXCTL |
1706               MII_TG3_AUXCTL_ACTL_SMDSP_ENA |
1707               MII_TG3_AUXCTL_ACTL_TX_6DB;
1708         tg3_writephy(tp, MII_TG3_AUX_CTRL, phy);
1709
1710         phy = ((otp & TG3_OTP_AGCTGT_MASK) >> TG3_OTP_AGCTGT_SHIFT);
1711         phy |= MII_TG3_DSP_TAP1_AGCTGT_DFLT;
1712         tg3_phydsp_write(tp, MII_TG3_DSP_TAP1, phy);
1713
1714         phy = ((otp & TG3_OTP_HPFFLTR_MASK) >> TG3_OTP_HPFFLTR_SHIFT) |
1715               ((otp & TG3_OTP_HPFOVER_MASK) >> TG3_OTP_HPFOVER_SHIFT);
1716         tg3_phydsp_write(tp, MII_TG3_DSP_AADJ1CH0, phy);
1717
1718         phy = ((otp & TG3_OTP_LPFDIS_MASK) >> TG3_OTP_LPFDIS_SHIFT);
1719         phy |= MII_TG3_DSP_AADJ1CH3_ADCCKADJ;
1720         tg3_phydsp_write(tp, MII_TG3_DSP_AADJ1CH3, phy);
1721
1722         phy = ((otp & TG3_OTP_VDAC_MASK) >> TG3_OTP_VDAC_SHIFT);
1723         tg3_phydsp_write(tp, MII_TG3_DSP_EXP75, phy);
1724
1725         phy = ((otp & TG3_OTP_10BTAMP_MASK) >> TG3_OTP_10BTAMP_SHIFT);
1726         tg3_phydsp_write(tp, MII_TG3_DSP_EXP96, phy);
1727
1728         phy = ((otp & TG3_OTP_ROFF_MASK) >> TG3_OTP_ROFF_SHIFT) |
1729               ((otp & TG3_OTP_RCOFF_MASK) >> TG3_OTP_RCOFF_SHIFT);
1730         tg3_phydsp_write(tp, MII_TG3_DSP_EXP97, phy);
1731
1732         /* Turn off SM_DSP clock. */
1733         phy = MII_TG3_AUXCTL_SHDWSEL_AUXCTL |
1734               MII_TG3_AUXCTL_ACTL_TX_6DB;
1735         tg3_writephy(tp, MII_TG3_AUX_CTRL, phy);
1736 }
1737
1738 static int tg3_wait_macro_done(struct tg3 *tp)
1739 {
1740         int limit = 100;
1741
1742         while (limit--) {
1743                 u32 tmp32;
1744
1745                 if (!tg3_readphy(tp, MII_TG3_DSP_CONTROL, &tmp32)) {
1746                         if ((tmp32 & 0x1000) == 0)
1747                                 break;
1748                 }
1749         }
1750         if (limit < 0)
1751                 return -EBUSY;
1752
1753         return 0;
1754 }
1755
1756 static int tg3_phy_write_and_check_testpat(struct tg3 *tp, int *resetp)
1757 {
1758         static const u32 test_pat[4][6] = {
1759         { 0x00005555, 0x00000005, 0x00002aaa, 0x0000000a, 0x00003456, 0x00000003 },
1760         { 0x00002aaa, 0x0000000a, 0x00003333, 0x00000003, 0x0000789a, 0x00000005 },
1761         { 0x00005a5a, 0x00000005, 0x00002a6a, 0x0000000a, 0x00001bcd, 0x00000003 },
1762         { 0x00002a5a, 0x0000000a, 0x000033c3, 0x00000003, 0x00002ef1, 0x00000005 }
1763         };
1764         int chan;
1765
1766         for (chan = 0; chan < 4; chan++) {
1767                 int i;
1768
1769                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
1770                              (chan * 0x2000) | 0x0200);
1771                 tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0002);
1772
1773                 for (i = 0; i < 6; i++)
1774                         tg3_writephy(tp, MII_TG3_DSP_RW_PORT,
1775                                      test_pat[chan][i]);
1776
1777                 tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0202);
1778                 if (tg3_wait_macro_done(tp)) {
1779                         *resetp = 1;
1780                         return -EBUSY;
1781                 }
1782
1783                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
1784                              (chan * 0x2000) | 0x0200);
1785                 tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0082);
1786                 if (tg3_wait_macro_done(tp)) {
1787                         *resetp = 1;
1788                         return -EBUSY;
1789                 }
1790
1791                 tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0802);
1792                 if (tg3_wait_macro_done(tp)) {
1793                         *resetp = 1;
1794                         return -EBUSY;
1795                 }
1796
1797                 for (i = 0; i < 6; i += 2) {
1798                         u32 low, high;
1799
1800                         if (tg3_readphy(tp, MII_TG3_DSP_RW_PORT, &low) ||
1801                             tg3_readphy(tp, MII_TG3_DSP_RW_PORT, &high) ||
1802                             tg3_wait_macro_done(tp)) {
1803                                 *resetp = 1;
1804                                 return -EBUSY;
1805                         }
1806                         low &= 0x7fff;
1807                         high &= 0x000f;
1808                         if (low != test_pat[chan][i] ||
1809                             high != test_pat[chan][i+1]) {
1810                                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000b);
1811                                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x4001);
1812                                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x4005);
1813
1814                                 return -EBUSY;
1815                         }
1816                 }
1817         }
1818
1819         return 0;
1820 }
1821
1822 static int tg3_phy_reset_chanpat(struct tg3 *tp)
1823 {
1824         int chan;
1825
1826         for (chan = 0; chan < 4; chan++) {
1827                 int i;
1828
1829                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
1830                              (chan * 0x2000) | 0x0200);
1831                 tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0002);
1832                 for (i = 0; i < 6; i++)
1833                         tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x000);
1834                 tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0202);
1835                 if (tg3_wait_macro_done(tp))
1836                         return -EBUSY;
1837         }
1838
1839         return 0;
1840 }
1841
1842 static int tg3_phy_reset_5703_4_5(struct tg3 *tp)
1843 {
1844         u32 reg32, phy9_orig;
1845         int retries, do_phy_reset, err;
1846
1847         retries = 10;
1848         do_phy_reset = 1;
1849         do {
1850                 if (do_phy_reset) {
1851                         err = tg3_bmcr_reset(tp);
1852                         if (err)
1853                                 return err;
1854                         do_phy_reset = 0;
1855                 }
1856
1857                 /* Disable transmitter and interrupt.  */
1858                 if (tg3_readphy(tp, MII_TG3_EXT_CTRL, &reg32))
1859                         continue;
1860
1861                 reg32 |= 0x3000;
1862                 tg3_writephy(tp, MII_TG3_EXT_CTRL, reg32);
1863
1864                 /* Set full-duplex, 1000 mbps.  */
1865                 tg3_writephy(tp, MII_BMCR,
1866                              BMCR_FULLDPLX | TG3_BMCR_SPEED1000);
1867
1868                 /* Set to master mode.  */
1869                 if (tg3_readphy(tp, MII_TG3_CTRL, &phy9_orig))
1870                         continue;
1871
1872                 tg3_writephy(tp, MII_TG3_CTRL,
1873                              (MII_TG3_CTRL_AS_MASTER |
1874                               MII_TG3_CTRL_ENABLE_AS_MASTER));
1875
1876                 /* Enable SM_DSP_CLOCK and 6dB.  */
1877                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
1878
1879                 /* Block the PHY control access.  */
1880                 tg3_phydsp_write(tp, 0x8005, 0x0800);
1881
1882                 err = tg3_phy_write_and_check_testpat(tp, &do_phy_reset);
1883                 if (!err)
1884                         break;
1885         } while (--retries);
1886
1887         err = tg3_phy_reset_chanpat(tp);
1888         if (err)
1889                 return err;
1890
1891         tg3_phydsp_write(tp, 0x8005, 0x0000);
1892
1893         tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8200);
1894         tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0000);
1895
1896         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
1897             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
1898                 /* Set Extended packet length bit for jumbo frames */
1899                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4400);
1900         } else {
1901                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
1902         }
1903
1904         tg3_writephy(tp, MII_TG3_CTRL, phy9_orig);
1905
1906         if (!tg3_readphy(tp, MII_TG3_EXT_CTRL, &reg32)) {
1907                 reg32 &= ~0x3000;
1908                 tg3_writephy(tp, MII_TG3_EXT_CTRL, reg32);
1909         } else if (!err)
1910                 err = -EBUSY;
1911
1912         return err;
1913 }
1914
1915 /* This will reset the tigon3 PHY if there is no valid
1916  * link unless the FORCE argument is non-zero.
1917  */
1918 static int tg3_phy_reset(struct tg3 *tp)
1919 {
1920         u32 cpmuctrl;
1921         u32 phy_status;
1922         int err;
1923
1924         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
1925                 u32 val;
1926
1927                 val = tr32(GRC_MISC_CFG);
1928                 tw32_f(GRC_MISC_CFG, val & ~GRC_MISC_CFG_EPHY_IDDQ);
1929                 udelay(40);
1930         }
1931         err  = tg3_readphy(tp, MII_BMSR, &phy_status);
1932         err |= tg3_readphy(tp, MII_BMSR, &phy_status);
1933         if (err != 0)
1934                 return -EBUSY;
1935
1936         if (netif_running(tp->dev) && netif_carrier_ok(tp->dev)) {
1937                 netif_carrier_off(tp->dev);
1938                 tg3_link_report(tp);
1939         }
1940
1941         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
1942             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
1943             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
1944                 err = tg3_phy_reset_5703_4_5(tp);
1945                 if (err)
1946                         return err;
1947                 goto out;
1948         }
1949
1950         cpmuctrl = 0;
1951         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
1952             GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) {
1953                 cpmuctrl = tr32(TG3_CPMU_CTRL);
1954                 if (cpmuctrl & CPMU_CTRL_GPHY_10MB_RXONLY)
1955                         tw32(TG3_CPMU_CTRL,
1956                              cpmuctrl & ~CPMU_CTRL_GPHY_10MB_RXONLY);
1957         }
1958
1959         err = tg3_bmcr_reset(tp);
1960         if (err)
1961                 return err;
1962
1963         if (cpmuctrl & CPMU_CTRL_GPHY_10MB_RXONLY) {
1964                 u32 phy;
1965
1966                 phy = MII_TG3_DSP_EXP8_AEDW | MII_TG3_DSP_EXP8_REJ2MHz;
1967                 tg3_phydsp_write(tp, MII_TG3_DSP_EXP8, phy);
1968
1969                 tw32(TG3_CPMU_CTRL, cpmuctrl);
1970         }
1971
1972         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX ||
1973             GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5761_AX) {
1974                 u32 val;
1975
1976                 val = tr32(TG3_CPMU_LSPD_1000MB_CLK);
1977                 if ((val & CPMU_LSPD_1000MB_MACCLK_MASK) ==
1978                     CPMU_LSPD_1000MB_MACCLK_12_5) {
1979                         val &= ~CPMU_LSPD_1000MB_MACCLK_MASK;
1980                         udelay(40);
1981                         tw32_f(TG3_CPMU_LSPD_1000MB_CLK, val);
1982                 }
1983         }
1984
1985         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
1986              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719) &&
1987             (tp->phy_flags & TG3_PHYFLG_MII_SERDES))
1988                 return 0;
1989
1990         tg3_phy_apply_otp(tp);
1991
1992         if (tp->phy_flags & TG3_PHYFLG_ENABLE_APD)
1993                 tg3_phy_toggle_apd(tp, true);
1994         else
1995                 tg3_phy_toggle_apd(tp, false);
1996
1997 out:
1998         if (tp->phy_flags & TG3_PHYFLG_ADC_BUG) {
1999                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
2000                 tg3_phydsp_write(tp, 0x201f, 0x2aaa);
2001                 tg3_phydsp_write(tp, 0x000a, 0x0323);
2002                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
2003         }
2004         if (tp->phy_flags & TG3_PHYFLG_5704_A0_BUG) {
2005                 tg3_writephy(tp, MII_TG3_MISC_SHDW, 0x8d68);
2006                 tg3_writephy(tp, MII_TG3_MISC_SHDW, 0x8d68);
2007         }
2008         if (tp->phy_flags & TG3_PHYFLG_BER_BUG) {
2009                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
2010                 tg3_phydsp_write(tp, 0x000a, 0x310b);
2011                 tg3_phydsp_write(tp, 0x201f, 0x9506);
2012                 tg3_phydsp_write(tp, 0x401f, 0x14e2);
2013                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
2014         } else if (tp->phy_flags & TG3_PHYFLG_JITTER_BUG) {
2015                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
2016                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000a);
2017                 if (tp->phy_flags & TG3_PHYFLG_ADJUST_TRIM) {
2018                         tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x110b);
2019                         tg3_writephy(tp, MII_TG3_TEST1,
2020                                      MII_TG3_TEST1_TRIM_EN | 0x4);
2021                 } else
2022                         tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x010b);
2023                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
2024         }
2025         /* Set Extended packet length bit (bit 14) on all chips that */
2026         /* support jumbo frames */
2027         if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5401) {
2028                 /* Cannot do read-modify-write on 5401 */
2029                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4c20);
2030         } else if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) {
2031                 u32 phy_reg;
2032
2033                 /* Set bit 14 with read-modify-write to preserve other bits */
2034                 if (!tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0007) &&
2035                     !tg3_readphy(tp, MII_TG3_AUX_CTRL, &phy_reg))
2036                         tg3_writephy(tp, MII_TG3_AUX_CTRL, phy_reg | 0x4000);
2037         }
2038
2039         /* Set phy register 0x10 bit 0 to high fifo elasticity to support
2040          * jumbo frames transmission.
2041          */
2042         if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) {
2043                 u32 phy_reg;
2044
2045                 if (!tg3_readphy(tp, MII_TG3_EXT_CTRL, &phy_reg))
2046                         tg3_writephy(tp, MII_TG3_EXT_CTRL,
2047                                      phy_reg | MII_TG3_EXT_CTRL_FIFO_ELASTIC);
2048         }
2049
2050         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
2051                 /* adjust output voltage */
2052                 tg3_writephy(tp, MII_TG3_FET_PTEST, 0x12);
2053         }
2054
2055         tg3_phy_toggle_automdix(tp, 1);
2056         tg3_phy_set_wirespeed(tp);
2057         return 0;
2058 }
2059
2060 static void tg3_frob_aux_power(struct tg3 *tp)
2061 {
2062         struct tg3 *tp_peer = tp;
2063
2064         /* The GPIOs do something completely different on 57765. */
2065         if ((tp->tg3_flags2 & TG3_FLG2_IS_NIC) == 0 ||
2066             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719 ||
2067             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
2068                 return;
2069
2070         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
2071             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714 ||
2072             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717) {
2073                 struct net_device *dev_peer;
2074
2075                 dev_peer = pci_get_drvdata(tp->pdev_peer);
2076                 /* remove_one() may have been run on the peer. */
2077                 if (!dev_peer)
2078                         tp_peer = tp;
2079                 else
2080                         tp_peer = netdev_priv(dev_peer);
2081         }
2082
2083         if ((tp->tg3_flags & TG3_FLAG_WOL_ENABLE) != 0 ||
2084             (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) != 0 ||
2085             (tp_peer->tg3_flags & TG3_FLAG_WOL_ENABLE) != 0 ||
2086             (tp_peer->tg3_flags & TG3_FLAG_ENABLE_ASF) != 0) {
2087                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
2088                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
2089                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2090                                     (GRC_LCLCTRL_GPIO_OE0 |
2091                                      GRC_LCLCTRL_GPIO_OE1 |
2092                                      GRC_LCLCTRL_GPIO_OE2 |
2093                                      GRC_LCLCTRL_GPIO_OUTPUT0 |
2094                                      GRC_LCLCTRL_GPIO_OUTPUT1),
2095                                     100);
2096                 } else if (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5761 ||
2097                            tp->pdev->device == TG3PCI_DEVICE_TIGON3_5761S) {
2098                         /* The 5761 non-e device swaps GPIO 0 and GPIO 2. */
2099                         u32 grc_local_ctrl = GRC_LCLCTRL_GPIO_OE0 |
2100                                              GRC_LCLCTRL_GPIO_OE1 |
2101                                              GRC_LCLCTRL_GPIO_OE2 |
2102                                              GRC_LCLCTRL_GPIO_OUTPUT0 |
2103                                              GRC_LCLCTRL_GPIO_OUTPUT1 |
2104                                              tp->grc_local_ctrl;
2105                         tw32_wait_f(GRC_LOCAL_CTRL, grc_local_ctrl, 100);
2106
2107                         grc_local_ctrl |= GRC_LCLCTRL_GPIO_OUTPUT2;
2108                         tw32_wait_f(GRC_LOCAL_CTRL, grc_local_ctrl, 100);
2109
2110                         grc_local_ctrl &= ~GRC_LCLCTRL_GPIO_OUTPUT0;
2111                         tw32_wait_f(GRC_LOCAL_CTRL, grc_local_ctrl, 100);
2112                 } else {
2113                         u32 no_gpio2;
2114                         u32 grc_local_ctrl = 0;
2115
2116                         if (tp_peer != tp &&
2117                             (tp_peer->tg3_flags & TG3_FLAG_INIT_COMPLETE) != 0)
2118                                 return;
2119
2120                         /* Workaround to prevent overdrawing Amps. */
2121                         if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
2122                             ASIC_REV_5714) {
2123                                 grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE3;
2124                                 tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2125                                             grc_local_ctrl, 100);
2126                         }
2127
2128                         /* On 5753 and variants, GPIO2 cannot be used. */
2129                         no_gpio2 = tp->nic_sram_data_cfg &
2130                                     NIC_SRAM_DATA_CFG_NO_GPIO2;
2131
2132                         grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE0 |
2133                                          GRC_LCLCTRL_GPIO_OE1 |
2134                                          GRC_LCLCTRL_GPIO_OE2 |
2135                                          GRC_LCLCTRL_GPIO_OUTPUT1 |
2136                                          GRC_LCLCTRL_GPIO_OUTPUT2;
2137                         if (no_gpio2) {
2138                                 grc_local_ctrl &= ~(GRC_LCLCTRL_GPIO_OE2 |
2139                                                     GRC_LCLCTRL_GPIO_OUTPUT2);
2140                         }
2141                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2142                                                     grc_local_ctrl, 100);
2143
2144                         grc_local_ctrl |= GRC_LCLCTRL_GPIO_OUTPUT0;
2145
2146                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2147                                                     grc_local_ctrl, 100);
2148
2149                         if (!no_gpio2) {
2150                                 grc_local_ctrl &= ~GRC_LCLCTRL_GPIO_OUTPUT2;
2151                                 tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2152                                             grc_local_ctrl, 100);
2153                         }
2154                 }
2155         } else {
2156                 if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
2157                     GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701) {
2158                         if (tp_peer != tp &&
2159                             (tp_peer->tg3_flags & TG3_FLAG_INIT_COMPLETE) != 0)
2160                                 return;
2161
2162                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2163                                     (GRC_LCLCTRL_GPIO_OE1 |
2164                                      GRC_LCLCTRL_GPIO_OUTPUT1), 100);
2165
2166                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2167                                     GRC_LCLCTRL_GPIO_OE1, 100);
2168
2169                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2170                                     (GRC_LCLCTRL_GPIO_OE1 |
2171                                      GRC_LCLCTRL_GPIO_OUTPUT1), 100);
2172                 }
2173         }
2174 }
2175
2176 static int tg3_5700_link_polarity(struct tg3 *tp, u32 speed)
2177 {
2178         if (tp->led_ctrl == LED_CTRL_MODE_PHY_2)
2179                 return 1;
2180         else if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5411) {
2181                 if (speed != SPEED_10)
2182                         return 1;
2183         } else if (speed == SPEED_10)
2184                 return 1;
2185
2186         return 0;
2187 }
2188
2189 static int tg3_setup_phy(struct tg3 *, int);
2190
2191 #define RESET_KIND_SHUTDOWN     0
2192 #define RESET_KIND_INIT         1
2193 #define RESET_KIND_SUSPEND      2
2194
2195 static void tg3_write_sig_post_reset(struct tg3 *, int);
2196 static int tg3_halt_cpu(struct tg3 *, u32);
2197
2198 static void tg3_power_down_phy(struct tg3 *tp, bool do_low_power)
2199 {
2200         u32 val;
2201
2202         if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES) {
2203                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
2204                         u32 sg_dig_ctrl = tr32(SG_DIG_CTRL);
2205                         u32 serdes_cfg = tr32(MAC_SERDES_CFG);
2206
2207                         sg_dig_ctrl |=
2208                                 SG_DIG_USING_HW_AUTONEG | SG_DIG_SOFT_RESET;
2209                         tw32(SG_DIG_CTRL, sg_dig_ctrl);
2210                         tw32(MAC_SERDES_CFG, serdes_cfg | (1 << 15));
2211                 }
2212                 return;
2213         }
2214
2215         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
2216                 tg3_bmcr_reset(tp);
2217                 val = tr32(GRC_MISC_CFG);
2218                 tw32_f(GRC_MISC_CFG, val | GRC_MISC_CFG_EPHY_IDDQ);
2219                 udelay(40);
2220                 return;
2221         } else if (tp->phy_flags & TG3_PHYFLG_IS_FET) {
2222                 u32 phytest;
2223                 if (!tg3_readphy(tp, MII_TG3_FET_TEST, &phytest)) {
2224                         u32 phy;
2225
2226                         tg3_writephy(tp, MII_ADVERTISE, 0);
2227                         tg3_writephy(tp, MII_BMCR,
2228                                      BMCR_ANENABLE | BMCR_ANRESTART);
2229
2230                         tg3_writephy(tp, MII_TG3_FET_TEST,
2231                                      phytest | MII_TG3_FET_SHADOW_EN);
2232                         if (!tg3_readphy(tp, MII_TG3_FET_SHDW_AUXMODE4, &phy)) {
2233                                 phy |= MII_TG3_FET_SHDW_AUXMODE4_SBPD;
2234                                 tg3_writephy(tp,
2235                                              MII_TG3_FET_SHDW_AUXMODE4,
2236                                              phy);
2237                         }
2238                         tg3_writephy(tp, MII_TG3_FET_TEST, phytest);
2239                 }
2240                 return;
2241         } else if (do_low_power) {
2242                 tg3_writephy(tp, MII_TG3_EXT_CTRL,
2243                              MII_TG3_EXT_CTRL_FORCE_LED_OFF);
2244
2245                 tg3_writephy(tp, MII_TG3_AUX_CTRL,
2246                              MII_TG3_AUXCTL_SHDWSEL_PWRCTL |
2247                              MII_TG3_AUXCTL_PCTL_100TX_LPWR |
2248                              MII_TG3_AUXCTL_PCTL_SPR_ISOLATE |
2249                              MII_TG3_AUXCTL_PCTL_VREG_11V);
2250         }
2251
2252         /* The PHY should not be powered down on some chips because
2253          * of bugs.
2254          */
2255         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
2256             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
2257             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780 &&
2258              (tp->phy_flags & TG3_PHYFLG_MII_SERDES)))
2259                 return;
2260
2261         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX ||
2262             GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5761_AX) {
2263                 val = tr32(TG3_CPMU_LSPD_1000MB_CLK);
2264                 val &= ~CPMU_LSPD_1000MB_MACCLK_MASK;
2265                 val |= CPMU_LSPD_1000MB_MACCLK_12_5;
2266                 tw32_f(TG3_CPMU_LSPD_1000MB_CLK, val);
2267         }
2268
2269         tg3_writephy(tp, MII_BMCR, BMCR_PDOWN);
2270 }
2271
2272 /* tp->lock is held. */
2273 static int tg3_nvram_lock(struct tg3 *tp)
2274 {
2275         if (tp->tg3_flags & TG3_FLAG_NVRAM) {
2276                 int i;
2277
2278                 if (tp->nvram_lock_cnt == 0) {
2279                         tw32(NVRAM_SWARB, SWARB_REQ_SET1);
2280                         for (i = 0; i < 8000; i++) {
2281                                 if (tr32(NVRAM_SWARB) & SWARB_GNT1)
2282                                         break;
2283                                 udelay(20);
2284                         }
2285                         if (i == 8000) {
2286                                 tw32(NVRAM_SWARB, SWARB_REQ_CLR1);
2287                                 return -ENODEV;
2288                         }
2289                 }
2290                 tp->nvram_lock_cnt++;
2291         }
2292         return 0;
2293 }
2294
2295 /* tp->lock is held. */
2296 static void tg3_nvram_unlock(struct tg3 *tp)
2297 {
2298         if (tp->tg3_flags & TG3_FLAG_NVRAM) {
2299                 if (tp->nvram_lock_cnt > 0)
2300                         tp->nvram_lock_cnt--;
2301                 if (tp->nvram_lock_cnt == 0)
2302                         tw32_f(NVRAM_SWARB, SWARB_REQ_CLR1);
2303         }
2304 }
2305
2306 /* tp->lock is held. */
2307 static void tg3_enable_nvram_access(struct tg3 *tp)
2308 {
2309         if ((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
2310             !(tp->tg3_flags3 & TG3_FLG3_PROTECTED_NVRAM)) {
2311                 u32 nvaccess = tr32(NVRAM_ACCESS);
2312
2313                 tw32(NVRAM_ACCESS, nvaccess | ACCESS_ENABLE);
2314         }
2315 }
2316
2317 /* tp->lock is held. */
2318 static void tg3_disable_nvram_access(struct tg3 *tp)
2319 {
2320         if ((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
2321             !(tp->tg3_flags3 & TG3_FLG3_PROTECTED_NVRAM)) {
2322                 u32 nvaccess = tr32(NVRAM_ACCESS);
2323
2324                 tw32(NVRAM_ACCESS, nvaccess & ~ACCESS_ENABLE);
2325         }
2326 }
2327
2328 static int tg3_nvram_read_using_eeprom(struct tg3 *tp,
2329                                         u32 offset, u32 *val)
2330 {
2331         u32 tmp;
2332         int i;
2333
2334         if (offset > EEPROM_ADDR_ADDR_MASK || (offset % 4) != 0)
2335                 return -EINVAL;
2336
2337         tmp = tr32(GRC_EEPROM_ADDR) & ~(EEPROM_ADDR_ADDR_MASK |
2338                                         EEPROM_ADDR_DEVID_MASK |
2339                                         EEPROM_ADDR_READ);
2340         tw32(GRC_EEPROM_ADDR,
2341              tmp |
2342              (0 << EEPROM_ADDR_DEVID_SHIFT) |
2343              ((offset << EEPROM_ADDR_ADDR_SHIFT) &
2344               EEPROM_ADDR_ADDR_MASK) |
2345              EEPROM_ADDR_READ | EEPROM_ADDR_START);
2346
2347         for (i = 0; i < 1000; i++) {
2348                 tmp = tr32(GRC_EEPROM_ADDR);
2349
2350                 if (tmp & EEPROM_ADDR_COMPLETE)
2351                         break;
2352                 msleep(1);
2353         }
2354         if (!(tmp & EEPROM_ADDR_COMPLETE))
2355                 return -EBUSY;
2356
2357         tmp = tr32(GRC_EEPROM_DATA);
2358
2359         /*
2360          * The data will always be opposite the native endian
2361          * format.  Perform a blind byteswap to compensate.
2362          */
2363         *val = swab32(tmp);
2364
2365         return 0;
2366 }
2367
2368 #define NVRAM_CMD_TIMEOUT 10000
2369
2370 static int tg3_nvram_exec_cmd(struct tg3 *tp, u32 nvram_cmd)
2371 {
2372         int i;
2373
2374         tw32(NVRAM_CMD, nvram_cmd);
2375         for (i = 0; i < NVRAM_CMD_TIMEOUT; i++) {
2376                 udelay(10);
2377                 if (tr32(NVRAM_CMD) & NVRAM_CMD_DONE) {
2378                         udelay(10);
2379                         break;
2380                 }
2381         }
2382
2383         if (i == NVRAM_CMD_TIMEOUT)
2384                 return -EBUSY;
2385
2386         return 0;
2387 }
2388
2389 static u32 tg3_nvram_phys_addr(struct tg3 *tp, u32 addr)
2390 {
2391         if ((tp->tg3_flags & TG3_FLAG_NVRAM) &&
2392             (tp->tg3_flags & TG3_FLAG_NVRAM_BUFFERED) &&
2393             (tp->tg3_flags2 & TG3_FLG2_FLASH) &&
2394            !(tp->tg3_flags3 & TG3_FLG3_NO_NVRAM_ADDR_TRANS) &&
2395             (tp->nvram_jedecnum == JEDEC_ATMEL))
2396
2397                 addr = ((addr / tp->nvram_pagesize) <<
2398                         ATMEL_AT45DB0X1B_PAGE_POS) +
2399                        (addr % tp->nvram_pagesize);
2400
2401         return addr;
2402 }
2403
2404 static u32 tg3_nvram_logical_addr(struct tg3 *tp, u32 addr)
2405 {
2406         if ((tp->tg3_flags & TG3_FLAG_NVRAM) &&
2407             (tp->tg3_flags & TG3_FLAG_NVRAM_BUFFERED) &&
2408             (tp->tg3_flags2 & TG3_FLG2_FLASH) &&
2409            !(tp->tg3_flags3 & TG3_FLG3_NO_NVRAM_ADDR_TRANS) &&
2410             (tp->nvram_jedecnum == JEDEC_ATMEL))
2411
2412                 addr = ((addr >> ATMEL_AT45DB0X1B_PAGE_POS) *
2413                         tp->nvram_pagesize) +
2414                        (addr & ((1 << ATMEL_AT45DB0X1B_PAGE_POS) - 1));
2415
2416         return addr;
2417 }
2418
2419 /* NOTE: Data read in from NVRAM is byteswapped according to
2420  * the byteswapping settings for all other register accesses.
2421  * tg3 devices are BE devices, so on a BE machine, the data
2422  * returned will be exactly as it is seen in NVRAM.  On a LE
2423  * machine, the 32-bit value will be byteswapped.
2424  */
2425 static int tg3_nvram_read(struct tg3 *tp, u32 offset, u32 *val)
2426 {
2427         int ret;
2428
2429         if (!(tp->tg3_flags & TG3_FLAG_NVRAM))
2430                 return tg3_nvram_read_using_eeprom(tp, offset, val);
2431
2432         offset = tg3_nvram_phys_addr(tp, offset);
2433
2434         if (offset > NVRAM_ADDR_MSK)
2435                 return -EINVAL;
2436
2437         ret = tg3_nvram_lock(tp);
2438         if (ret)
2439                 return ret;
2440
2441         tg3_enable_nvram_access(tp);
2442
2443         tw32(NVRAM_ADDR, offset);
2444         ret = tg3_nvram_exec_cmd(tp, NVRAM_CMD_RD | NVRAM_CMD_GO |
2445                 NVRAM_CMD_FIRST | NVRAM_CMD_LAST | NVRAM_CMD_DONE);
2446
2447         if (ret == 0)
2448                 *val = tr32(NVRAM_RDDATA);
2449
2450         tg3_disable_nvram_access(tp);
2451
2452         tg3_nvram_unlock(tp);
2453
2454         return ret;
2455 }
2456
2457 /* Ensures NVRAM data is in bytestream format. */
2458 static int tg3_nvram_read_be32(struct tg3 *tp, u32 offset, __be32 *val)
2459 {
2460         u32 v;
2461         int res = tg3_nvram_read(tp, offset, &v);
2462         if (!res)
2463                 *val = cpu_to_be32(v);
2464         return res;
2465 }
2466
2467 /* tp->lock is held. */
2468 static void __tg3_set_mac_addr(struct tg3 *tp, int skip_mac_1)
2469 {
2470         u32 addr_high, addr_low;
2471         int i;
2472
2473         addr_high = ((tp->dev->dev_addr[0] << 8) |
2474                      tp->dev->dev_addr[1]);
2475         addr_low = ((tp->dev->dev_addr[2] << 24) |
2476                     (tp->dev->dev_addr[3] << 16) |
2477                     (tp->dev->dev_addr[4] <<  8) |
2478                     (tp->dev->dev_addr[5] <<  0));
2479         for (i = 0; i < 4; i++) {
2480                 if (i == 1 && skip_mac_1)
2481                         continue;
2482                 tw32(MAC_ADDR_0_HIGH + (i * 8), addr_high);
2483                 tw32(MAC_ADDR_0_LOW + (i * 8), addr_low);
2484         }
2485
2486         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
2487             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
2488                 for (i = 0; i < 12; i++) {
2489                         tw32(MAC_EXTADDR_0_HIGH + (i * 8), addr_high);
2490                         tw32(MAC_EXTADDR_0_LOW + (i * 8), addr_low);
2491                 }
2492         }
2493
2494         addr_high = (tp->dev->dev_addr[0] +
2495                      tp->dev->dev_addr[1] +
2496                      tp->dev->dev_addr[2] +
2497                      tp->dev->dev_addr[3] +
2498                      tp->dev->dev_addr[4] +
2499                      tp->dev->dev_addr[5]) &
2500                 TX_BACKOFF_SEED_MASK;
2501         tw32(MAC_TX_BACKOFF_SEED, addr_high);
2502 }
2503
2504 static int tg3_set_power_state(struct tg3 *tp, pci_power_t state)
2505 {
2506         u32 misc_host_ctrl;
2507         bool device_should_wake, do_low_power;
2508
2509         /* Make sure register accesses (indirect or otherwise)
2510          * will function correctly.
2511          */
2512         pci_write_config_dword(tp->pdev,
2513                                TG3PCI_MISC_HOST_CTRL,
2514                                tp->misc_host_ctrl);
2515
2516         switch (state) {
2517         case PCI_D0:
2518                 pci_enable_wake(tp->pdev, state, false);
2519                 pci_set_power_state(tp->pdev, PCI_D0);
2520
2521                 /* Switch out of Vaux if it is a NIC */
2522                 if (tp->tg3_flags2 & TG3_FLG2_IS_NIC)
2523                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl, 100);
2524
2525                 return 0;
2526
2527         case PCI_D1:
2528         case PCI_D2:
2529         case PCI_D3hot:
2530                 break;
2531
2532         default:
2533                 netdev_err(tp->dev, "Invalid power state (D%d) requested\n",
2534                            state);
2535                 return -EINVAL;
2536         }
2537
2538         /* Restore the CLKREQ setting. */
2539         if (tp->tg3_flags3 & TG3_FLG3_CLKREQ_BUG) {
2540                 u16 lnkctl;
2541
2542                 pci_read_config_word(tp->pdev,
2543                                      tp->pcie_cap + PCI_EXP_LNKCTL,
2544                                      &lnkctl);
2545                 lnkctl |= PCI_EXP_LNKCTL_CLKREQ_EN;
2546                 pci_write_config_word(tp->pdev,
2547                                       tp->pcie_cap + PCI_EXP_LNKCTL,
2548                                       lnkctl);
2549         }
2550
2551         misc_host_ctrl = tr32(TG3PCI_MISC_HOST_CTRL);
2552         tw32(TG3PCI_MISC_HOST_CTRL,
2553              misc_host_ctrl | MISC_HOST_CTRL_MASK_PCI_INT);
2554
2555         device_should_wake = pci_pme_capable(tp->pdev, state) &&
2556                              device_may_wakeup(&tp->pdev->dev) &&
2557                              (tp->tg3_flags & TG3_FLAG_WOL_ENABLE);
2558
2559         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
2560                 do_low_power = false;
2561                 if ((tp->phy_flags & TG3_PHYFLG_IS_CONNECTED) &&
2562                     !(tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)) {
2563                         struct phy_device *phydev;
2564                         u32 phyid, advertising;
2565
2566                         phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
2567
2568                         tp->phy_flags |= TG3_PHYFLG_IS_LOW_POWER;
2569
2570                         tp->link_config.orig_speed = phydev->speed;
2571                         tp->link_config.orig_duplex = phydev->duplex;
2572                         tp->link_config.orig_autoneg = phydev->autoneg;
2573                         tp->link_config.orig_advertising = phydev->advertising;
2574
2575                         advertising = ADVERTISED_TP |
2576                                       ADVERTISED_Pause |
2577                                       ADVERTISED_Autoneg |
2578                                       ADVERTISED_10baseT_Half;
2579
2580                         if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) ||
2581                             device_should_wake) {
2582                                 if (tp->tg3_flags & TG3_FLAG_WOL_SPEED_100MB)
2583                                         advertising |=
2584                                                 ADVERTISED_100baseT_Half |
2585                                                 ADVERTISED_100baseT_Full |
2586                                                 ADVERTISED_10baseT_Full;
2587                                 else
2588                                         advertising |= ADVERTISED_10baseT_Full;
2589                         }
2590
2591                         phydev->advertising = advertising;
2592
2593                         phy_start_aneg(phydev);
2594
2595                         phyid = phydev->drv->phy_id & phydev->drv->phy_id_mask;
2596                         if (phyid != PHY_ID_BCMAC131) {
2597                                 phyid &= PHY_BCM_OUI_MASK;
2598                                 if (phyid == PHY_BCM_OUI_1 ||
2599                                     phyid == PHY_BCM_OUI_2 ||
2600                                     phyid == PHY_BCM_OUI_3)
2601                                         do_low_power = true;
2602                         }
2603                 }
2604         } else {
2605                 do_low_power = true;
2606
2607                 if (!(tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)) {
2608                         tp->phy_flags |= TG3_PHYFLG_IS_LOW_POWER;
2609                         tp->link_config.orig_speed = tp->link_config.speed;
2610                         tp->link_config.orig_duplex = tp->link_config.duplex;
2611                         tp->link_config.orig_autoneg = tp->link_config.autoneg;
2612                 }
2613
2614                 if (!(tp->phy_flags & TG3_PHYFLG_ANY_SERDES)) {
2615                         tp->link_config.speed = SPEED_10;
2616                         tp->link_config.duplex = DUPLEX_HALF;
2617                         tp->link_config.autoneg = AUTONEG_ENABLE;
2618                         tg3_setup_phy(tp, 0);
2619                 }
2620         }
2621
2622         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
2623                 u32 val;
2624
2625                 val = tr32(GRC_VCPU_EXT_CTRL);
2626                 tw32(GRC_VCPU_EXT_CTRL, val | GRC_VCPU_EXT_CTRL_DISABLE_WOL);
2627         } else if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)) {
2628                 int i;
2629                 u32 val;
2630
2631                 for (i = 0; i < 200; i++) {
2632                         tg3_read_mem(tp, NIC_SRAM_FW_ASF_STATUS_MBOX, &val);
2633                         if (val == ~NIC_SRAM_FIRMWARE_MBOX_MAGIC1)
2634                                 break;
2635                         msleep(1);
2636                 }
2637         }
2638         if (tp->tg3_flags & TG3_FLAG_WOL_CAP)
2639                 tg3_write_mem(tp, NIC_SRAM_WOL_MBOX, WOL_SIGNATURE |
2640                                                      WOL_DRV_STATE_SHUTDOWN |
2641                                                      WOL_DRV_WOL |
2642                                                      WOL_SET_MAGIC_PKT);
2643
2644         if (device_should_wake) {
2645                 u32 mac_mode;
2646
2647                 if (!(tp->phy_flags & TG3_PHYFLG_PHY_SERDES)) {
2648                         if (do_low_power) {
2649                                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x5a);
2650                                 udelay(40);
2651                         }
2652
2653                         if (tp->phy_flags & TG3_PHYFLG_MII_SERDES)
2654                                 mac_mode = MAC_MODE_PORT_MODE_GMII;
2655                         else
2656                                 mac_mode = MAC_MODE_PORT_MODE_MII;
2657
2658                         mac_mode |= tp->mac_mode & MAC_MODE_LINK_POLARITY;
2659                         if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
2660                             ASIC_REV_5700) {
2661                                 u32 speed = (tp->tg3_flags &
2662                                              TG3_FLAG_WOL_SPEED_100MB) ?
2663                                              SPEED_100 : SPEED_10;
2664                                 if (tg3_5700_link_polarity(tp, speed))
2665                                         mac_mode |= MAC_MODE_LINK_POLARITY;
2666                                 else
2667                                         mac_mode &= ~MAC_MODE_LINK_POLARITY;
2668                         }
2669                 } else {
2670                         mac_mode = MAC_MODE_PORT_MODE_TBI;
2671                 }
2672
2673                 if (!(tp->tg3_flags2 & TG3_FLG2_5750_PLUS))
2674                         tw32(MAC_LED_CTRL, tp->led_ctrl);
2675
2676                 mac_mode |= MAC_MODE_MAGIC_PKT_ENABLE;
2677                 if (((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
2678                     !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) &&
2679                     ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) ||
2680                      (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)))
2681                         mac_mode |= MAC_MODE_KEEP_FRAME_IN_WOL;
2682
2683                 if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
2684                         mac_mode |= tp->mac_mode &
2685                                     (MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN);
2686                         if (mac_mode & MAC_MODE_APE_TX_EN)
2687                                 mac_mode |= MAC_MODE_TDE_ENABLE;
2688                 }
2689
2690                 tw32_f(MAC_MODE, mac_mode);
2691                 udelay(100);
2692
2693                 tw32_f(MAC_RX_MODE, RX_MODE_ENABLE);
2694                 udelay(10);
2695         }
2696
2697         if (!(tp->tg3_flags & TG3_FLAG_WOL_SPEED_100MB) &&
2698             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
2699              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)) {
2700                 u32 base_val;
2701
2702                 base_val = tp->pci_clock_ctrl;
2703                 base_val |= (CLOCK_CTRL_RXCLK_DISABLE |
2704                              CLOCK_CTRL_TXCLK_DISABLE);
2705
2706                 tw32_wait_f(TG3PCI_CLOCK_CTRL, base_val | CLOCK_CTRL_ALTCLK |
2707                             CLOCK_CTRL_PWRDOWN_PLL133, 40);
2708         } else if ((tp->tg3_flags2 & TG3_FLG2_5780_CLASS) ||
2709                    (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) ||
2710                    (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)) {
2711                 /* do nothing */
2712         } else if (!((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
2713                      (tp->tg3_flags & TG3_FLAG_ENABLE_ASF))) {
2714                 u32 newbits1, newbits2;
2715
2716                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
2717                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
2718                         newbits1 = (CLOCK_CTRL_RXCLK_DISABLE |
2719                                     CLOCK_CTRL_TXCLK_DISABLE |
2720                                     CLOCK_CTRL_ALTCLK);
2721                         newbits2 = newbits1 | CLOCK_CTRL_44MHZ_CORE;
2722                 } else if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
2723                         newbits1 = CLOCK_CTRL_625_CORE;
2724                         newbits2 = newbits1 | CLOCK_CTRL_ALTCLK;
2725                 } else {
2726                         newbits1 = CLOCK_CTRL_ALTCLK;
2727                         newbits2 = newbits1 | CLOCK_CTRL_44MHZ_CORE;
2728                 }
2729
2730                 tw32_wait_f(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl | newbits1,
2731                             40);
2732
2733                 tw32_wait_f(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl | newbits2,
2734                             40);
2735
2736                 if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
2737                         u32 newbits3;
2738
2739                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
2740                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
2741                                 newbits3 = (CLOCK_CTRL_RXCLK_DISABLE |
2742                                             CLOCK_CTRL_TXCLK_DISABLE |
2743                                             CLOCK_CTRL_44MHZ_CORE);
2744                         } else {
2745                                 newbits3 = CLOCK_CTRL_44MHZ_CORE;
2746                         }
2747
2748                         tw32_wait_f(TG3PCI_CLOCK_CTRL,
2749                                     tp->pci_clock_ctrl | newbits3, 40);
2750                 }
2751         }
2752
2753         if (!(device_should_wake) &&
2754             !(tp->tg3_flags & TG3_FLAG_ENABLE_ASF))
2755                 tg3_power_down_phy(tp, do_low_power);
2756
2757         tg3_frob_aux_power(tp);
2758
2759         /* Workaround for unstable PLL clock */
2760         if ((GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_AX) ||
2761             (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_BX)) {
2762                 u32 val = tr32(0x7d00);
2763
2764                 val &= ~((1 << 16) | (1 << 4) | (1 << 2) | (1 << 1) | 1);
2765                 tw32(0x7d00, val);
2766                 if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)) {
2767                         int err;
2768
2769                         err = tg3_nvram_lock(tp);
2770                         tg3_halt_cpu(tp, RX_CPU_BASE);
2771                         if (!err)
2772                                 tg3_nvram_unlock(tp);
2773                 }
2774         }
2775
2776         tg3_write_sig_post_reset(tp, RESET_KIND_SHUTDOWN);
2777
2778         if (device_should_wake)
2779                 pci_enable_wake(tp->pdev, state, true);
2780
2781         /* Finally, set the new power state. */
2782         pci_set_power_state(tp->pdev, state);
2783
2784         return 0;
2785 }
2786
2787 static void tg3_aux_stat_to_speed_duplex(struct tg3 *tp, u32 val, u16 *speed, u8 *duplex)
2788 {
2789         switch (val & MII_TG3_AUX_STAT_SPDMASK) {
2790         case MII_TG3_AUX_STAT_10HALF:
2791                 *speed = SPEED_10;
2792                 *duplex = DUPLEX_HALF;
2793                 break;
2794
2795         case MII_TG3_AUX_STAT_10FULL:
2796                 *speed = SPEED_10;
2797                 *duplex = DUPLEX_FULL;
2798                 break;
2799
2800         case MII_TG3_AUX_STAT_100HALF:
2801                 *speed = SPEED_100;
2802                 *duplex = DUPLEX_HALF;
2803                 break;
2804
2805         case MII_TG3_AUX_STAT_100FULL:
2806                 *speed = SPEED_100;
2807                 *duplex = DUPLEX_FULL;
2808                 break;
2809
2810         case MII_TG3_AUX_STAT_1000HALF:
2811                 *speed = SPEED_1000;
2812                 *duplex = DUPLEX_HALF;
2813                 break;
2814
2815         case MII_TG3_AUX_STAT_1000FULL:
2816                 *speed = SPEED_1000;
2817                 *duplex = DUPLEX_FULL;
2818                 break;
2819
2820         default:
2821                 if (tp->phy_flags & TG3_PHYFLG_IS_FET) {
2822                         *speed = (val & MII_TG3_AUX_STAT_100) ? SPEED_100 :
2823                                  SPEED_10;
2824                         *duplex = (val & MII_TG3_AUX_STAT_FULL) ? DUPLEX_FULL :
2825                                   DUPLEX_HALF;
2826                         break;
2827                 }
2828                 *speed = SPEED_INVALID;
2829                 *duplex = DUPLEX_INVALID;
2830                 break;
2831         }
2832 }
2833
2834 static void tg3_phy_copper_begin(struct tg3 *tp)
2835 {
2836         u32 new_adv;
2837         int i;
2838
2839         if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER) {
2840                 /* Entering low power mode.  Disable gigabit and
2841                  * 100baseT advertisements.
2842                  */
2843                 tg3_writephy(tp, MII_TG3_CTRL, 0);
2844
2845                 new_adv = (ADVERTISE_10HALF | ADVERTISE_10FULL |
2846                            ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
2847                 if (tp->tg3_flags & TG3_FLAG_WOL_SPEED_100MB)
2848                         new_adv |= (ADVERTISE_100HALF | ADVERTISE_100FULL);
2849
2850                 tg3_writephy(tp, MII_ADVERTISE, new_adv);
2851         } else if (tp->link_config.speed == SPEED_INVALID) {
2852                 if (tp->phy_flags & TG3_PHYFLG_10_100_ONLY)
2853                         tp->link_config.advertising &=
2854                                 ~(ADVERTISED_1000baseT_Half |
2855                                   ADVERTISED_1000baseT_Full);
2856
2857                 new_adv = ADVERTISE_CSMA;
2858                 if (tp->link_config.advertising & ADVERTISED_10baseT_Half)
2859                         new_adv |= ADVERTISE_10HALF;
2860                 if (tp->link_config.advertising & ADVERTISED_10baseT_Full)
2861                         new_adv |= ADVERTISE_10FULL;
2862                 if (tp->link_config.advertising & ADVERTISED_100baseT_Half)
2863                         new_adv |= ADVERTISE_100HALF;
2864                 if (tp->link_config.advertising & ADVERTISED_100baseT_Full)
2865                         new_adv |= ADVERTISE_100FULL;
2866
2867                 new_adv |= tg3_advert_flowctrl_1000T(tp->link_config.flowctrl);
2868
2869                 tg3_writephy(tp, MII_ADVERTISE, new_adv);
2870
2871                 if (tp->link_config.advertising &
2872                     (ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full)) {
2873                         new_adv = 0;
2874                         if (tp->link_config.advertising & ADVERTISED_1000baseT_Half)
2875                                 new_adv |= MII_TG3_CTRL_ADV_1000_HALF;
2876                         if (tp->link_config.advertising & ADVERTISED_1000baseT_Full)
2877                                 new_adv |= MII_TG3_CTRL_ADV_1000_FULL;
2878                         if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY) &&
2879                             (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
2880                              tp->pci_chip_rev_id == CHIPREV_ID_5701_B0))
2881                                 new_adv |= (MII_TG3_CTRL_AS_MASTER |
2882                                             MII_TG3_CTRL_ENABLE_AS_MASTER);
2883                         tg3_writephy(tp, MII_TG3_CTRL, new_adv);
2884                 } else {
2885                         tg3_writephy(tp, MII_TG3_CTRL, 0);
2886                 }
2887         } else {
2888                 new_adv = tg3_advert_flowctrl_1000T(tp->link_config.flowctrl);
2889                 new_adv |= ADVERTISE_CSMA;
2890
2891                 /* Asking for a specific link mode. */
2892                 if (tp->link_config.speed == SPEED_1000) {
2893                         tg3_writephy(tp, MII_ADVERTISE, new_adv);
2894
2895                         if (tp->link_config.duplex == DUPLEX_FULL)
2896                                 new_adv = MII_TG3_CTRL_ADV_1000_FULL;
2897                         else
2898                                 new_adv = MII_TG3_CTRL_ADV_1000_HALF;
2899                         if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
2900                             tp->pci_chip_rev_id == CHIPREV_ID_5701_B0)
2901                                 new_adv |= (MII_TG3_CTRL_AS_MASTER |
2902                                             MII_TG3_CTRL_ENABLE_AS_MASTER);
2903                 } else {
2904                         if (tp->link_config.speed == SPEED_100) {
2905                                 if (tp->link_config.duplex == DUPLEX_FULL)
2906                                         new_adv |= ADVERTISE_100FULL;
2907                                 else
2908                                         new_adv |= ADVERTISE_100HALF;
2909                         } else {
2910                                 if (tp->link_config.duplex == DUPLEX_FULL)
2911                                         new_adv |= ADVERTISE_10FULL;
2912                                 else
2913                                         new_adv |= ADVERTISE_10HALF;
2914                         }
2915                         tg3_writephy(tp, MII_ADVERTISE, new_adv);
2916
2917                         new_adv = 0;
2918                 }
2919
2920                 tg3_writephy(tp, MII_TG3_CTRL, new_adv);
2921         }
2922
2923         if (tp->link_config.autoneg == AUTONEG_DISABLE &&
2924             tp->link_config.speed != SPEED_INVALID) {
2925                 u32 bmcr, orig_bmcr;
2926
2927                 tp->link_config.active_speed = tp->link_config.speed;
2928                 tp->link_config.active_duplex = tp->link_config.duplex;
2929
2930                 bmcr = 0;
2931                 switch (tp->link_config.speed) {
2932                 default:
2933                 case SPEED_10:
2934                         break;
2935
2936                 case SPEED_100:
2937                         bmcr |= BMCR_SPEED100;
2938                         break;
2939
2940                 case SPEED_1000:
2941                         bmcr |= TG3_BMCR_SPEED1000;
2942                         break;
2943                 }
2944
2945                 if (tp->link_config.duplex == DUPLEX_FULL)
2946                         bmcr |= BMCR_FULLDPLX;
2947
2948                 if (!tg3_readphy(tp, MII_BMCR, &orig_bmcr) &&
2949                     (bmcr != orig_bmcr)) {
2950                         tg3_writephy(tp, MII_BMCR, BMCR_LOOPBACK);
2951                         for (i = 0; i < 1500; i++) {
2952                                 u32 tmp;
2953
2954                                 udelay(10);
2955                                 if (tg3_readphy(tp, MII_BMSR, &tmp) ||
2956                                     tg3_readphy(tp, MII_BMSR, &tmp))
2957                                         continue;
2958                                 if (!(tmp & BMSR_LSTATUS)) {
2959                                         udelay(40);
2960                                         break;
2961                                 }
2962                         }
2963                         tg3_writephy(tp, MII_BMCR, bmcr);
2964                         udelay(40);
2965                 }
2966         } else {
2967                 tg3_writephy(tp, MII_BMCR,
2968                              BMCR_ANENABLE | BMCR_ANRESTART);
2969         }
2970 }
2971
2972 static int tg3_init_5401phy_dsp(struct tg3 *tp)
2973 {
2974         int err;
2975
2976         /* Turn off tap power management. */
2977         /* Set Extended packet length bit */
2978         err  = tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4c20);
2979
2980         err |= tg3_phydsp_write(tp, 0x0012, 0x1804);
2981         err |= tg3_phydsp_write(tp, 0x0013, 0x1204);
2982         err |= tg3_phydsp_write(tp, 0x8006, 0x0132);
2983         err |= tg3_phydsp_write(tp, 0x8006, 0x0232);
2984         err |= tg3_phydsp_write(tp, 0x201f, 0x0a20);
2985
2986         udelay(40);
2987
2988         return err;
2989 }
2990
2991 static int tg3_copper_is_advertising_all(struct tg3 *tp, u32 mask)
2992 {
2993         u32 adv_reg, all_mask = 0;
2994
2995         if (mask & ADVERTISED_10baseT_Half)
2996                 all_mask |= ADVERTISE_10HALF;
2997         if (mask & ADVERTISED_10baseT_Full)
2998                 all_mask |= ADVERTISE_10FULL;
2999         if (mask & ADVERTISED_100baseT_Half)
3000                 all_mask |= ADVERTISE_100HALF;
3001         if (mask & ADVERTISED_100baseT_Full)
3002                 all_mask |= ADVERTISE_100FULL;
3003
3004         if (tg3_readphy(tp, MII_ADVERTISE, &adv_reg))
3005                 return 0;
3006
3007         if ((adv_reg & all_mask) != all_mask)
3008                 return 0;
3009         if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY)) {
3010                 u32 tg3_ctrl;
3011
3012                 all_mask = 0;
3013                 if (mask & ADVERTISED_1000baseT_Half)
3014                         all_mask |= ADVERTISE_1000HALF;
3015                 if (mask & ADVERTISED_1000baseT_Full)
3016                         all_mask |= ADVERTISE_1000FULL;
3017
3018                 if (tg3_readphy(tp, MII_TG3_CTRL, &tg3_ctrl))
3019                         return 0;
3020
3021                 if ((tg3_ctrl & all_mask) != all_mask)
3022                         return 0;
3023         }
3024         return 1;
3025 }
3026
3027 static int tg3_adv_1000T_flowctrl_ok(struct tg3 *tp, u32 *lcladv, u32 *rmtadv)
3028 {
3029         u32 curadv, reqadv;
3030
3031         if (tg3_readphy(tp, MII_ADVERTISE, lcladv))
3032                 return 1;
3033
3034         curadv = *lcladv & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
3035         reqadv = tg3_advert_flowctrl_1000T(tp->link_config.flowctrl);
3036
3037         if (tp->link_config.active_duplex == DUPLEX_FULL) {
3038                 if (curadv != reqadv)
3039                         return 0;
3040
3041                 if (tp->tg3_flags & TG3_FLAG_PAUSE_AUTONEG)
3042                         tg3_readphy(tp, MII_LPA, rmtadv);
3043         } else {
3044                 /* Reprogram the advertisement register, even if it
3045                  * does not affect the current link.  If the link
3046                  * gets renegotiated in the future, we can save an
3047                  * additional renegotiation cycle by advertising
3048                  * it correctly in the first place.
3049                  */
3050                 if (curadv != reqadv) {
3051                         *lcladv &= ~(ADVERTISE_PAUSE_CAP |
3052                                      ADVERTISE_PAUSE_ASYM);
3053                         tg3_writephy(tp, MII_ADVERTISE, *lcladv | reqadv);
3054                 }
3055         }
3056
3057         return 1;
3058 }
3059
3060 static int tg3_setup_copper_phy(struct tg3 *tp, int force_reset)
3061 {
3062         int current_link_up;
3063         u32 bmsr, dummy;
3064         u32 lcl_adv, rmt_adv;
3065         u16 current_speed;
3066         u8 current_duplex;
3067         int i, err;
3068
3069         tw32(MAC_EVENT, 0);
3070
3071         tw32_f(MAC_STATUS,
3072              (MAC_STATUS_SYNC_CHANGED |
3073               MAC_STATUS_CFG_CHANGED |
3074               MAC_STATUS_MI_COMPLETION |
3075               MAC_STATUS_LNKSTATE_CHANGED));
3076         udelay(40);
3077
3078         if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
3079                 tw32_f(MAC_MI_MODE,
3080                      (tp->mi_mode & ~MAC_MI_MODE_AUTO_POLL));
3081                 udelay(80);
3082         }
3083
3084         tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x02);
3085
3086         /* Some third-party PHYs need to be reset on link going
3087          * down.
3088          */
3089         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
3090              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
3091              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) &&
3092             netif_carrier_ok(tp->dev)) {
3093                 tg3_readphy(tp, MII_BMSR, &bmsr);
3094                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
3095                     !(bmsr & BMSR_LSTATUS))
3096                         force_reset = 1;
3097         }
3098         if (force_reset)
3099                 tg3_phy_reset(tp);
3100
3101         if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5401) {
3102                 tg3_readphy(tp, MII_BMSR, &bmsr);
3103                 if (tg3_readphy(tp, MII_BMSR, &bmsr) ||
3104                     !(tp->tg3_flags & TG3_FLAG_INIT_COMPLETE))
3105                         bmsr = 0;
3106
3107                 if (!(bmsr & BMSR_LSTATUS)) {
3108                         err = tg3_init_5401phy_dsp(tp);
3109                         if (err)
3110                                 return err;
3111
3112                         tg3_readphy(tp, MII_BMSR, &bmsr);
3113                         for (i = 0; i < 1000; i++) {
3114                                 udelay(10);
3115                                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
3116                                     (bmsr & BMSR_LSTATUS)) {
3117                                         udelay(40);
3118                                         break;
3119                                 }
3120                         }
3121
3122                         if ((tp->phy_id & TG3_PHY_ID_REV_MASK) ==
3123                             TG3_PHY_REV_BCM5401_B0 &&
3124                             !(bmsr & BMSR_LSTATUS) &&
3125                             tp->link_config.active_speed == SPEED_1000) {
3126                                 err = tg3_phy_reset(tp);
3127                                 if (!err)
3128                                         err = tg3_init_5401phy_dsp(tp);
3129                                 if (err)
3130                                         return err;
3131                         }
3132                 }
3133         } else if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
3134                    tp->pci_chip_rev_id == CHIPREV_ID_5701_B0) {
3135                 /* 5701 {A0,B0} CRC bug workaround */
3136                 tg3_writephy(tp, 0x15, 0x0a75);
3137                 tg3_writephy(tp, MII_TG3_MISC_SHDW, 0x8c68);
3138                 tg3_writephy(tp, MII_TG3_MISC_SHDW, 0x8d68);
3139                 tg3_writephy(tp, MII_TG3_MISC_SHDW, 0x8c68);
3140         }
3141
3142         /* Clear pending interrupts... */
3143         tg3_readphy(tp, MII_TG3_ISTAT, &dummy);
3144         tg3_readphy(tp, MII_TG3_ISTAT, &dummy);
3145
3146         if (tp->phy_flags & TG3_PHYFLG_USE_MI_INTERRUPT)
3147                 tg3_writephy(tp, MII_TG3_IMASK, ~MII_TG3_INT_LINKCHG);
3148         else if (!(tp->phy_flags & TG3_PHYFLG_IS_FET))
3149                 tg3_writephy(tp, MII_TG3_IMASK, ~0);
3150
3151         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
3152             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
3153                 if (tp->led_ctrl == LED_CTRL_MODE_PHY_1)
3154                         tg3_writephy(tp, MII_TG3_EXT_CTRL,
3155                                      MII_TG3_EXT_CTRL_LNK3_LED_MODE);
3156                 else
3157                         tg3_writephy(tp, MII_TG3_EXT_CTRL, 0);
3158         }
3159
3160         current_link_up = 0;
3161         current_speed = SPEED_INVALID;
3162         current_duplex = DUPLEX_INVALID;
3163
3164         if (tp->phy_flags & TG3_PHYFLG_CAPACITIVE_COUPLING) {
3165                 u32 val;
3166
3167                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4007);
3168                 tg3_readphy(tp, MII_TG3_AUX_CTRL, &val);
3169                 if (!(val & (1 << 10))) {
3170                         val |= (1 << 10);
3171                         tg3_writephy(tp, MII_TG3_AUX_CTRL, val);
3172                         goto relink;
3173                 }
3174         }
3175
3176         bmsr = 0;
3177         for (i = 0; i < 100; i++) {
3178                 tg3_readphy(tp, MII_BMSR, &bmsr);
3179                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
3180                     (bmsr & BMSR_LSTATUS))
3181                         break;
3182                 udelay(40);
3183         }
3184
3185         if (bmsr & BMSR_LSTATUS) {
3186                 u32 aux_stat, bmcr;
3187
3188                 tg3_readphy(tp, MII_TG3_AUX_STAT, &aux_stat);
3189                 for (i = 0; i < 2000; i++) {
3190                         udelay(10);
3191                         if (!tg3_readphy(tp, MII_TG3_AUX_STAT, &aux_stat) &&
3192                             aux_stat)
3193                                 break;
3194                 }
3195
3196                 tg3_aux_stat_to_speed_duplex(tp, aux_stat,
3197                                              &current_speed,
3198                                              &current_duplex);
3199
3200                 bmcr = 0;
3201                 for (i = 0; i < 200; i++) {
3202                         tg3_readphy(tp, MII_BMCR, &bmcr);
3203                         if (tg3_readphy(tp, MII_BMCR, &bmcr))
3204                                 continue;
3205                         if (bmcr && bmcr != 0x7fff)
3206                                 break;
3207                         udelay(10);
3208                 }
3209
3210                 lcl_adv = 0;
3211                 rmt_adv = 0;
3212
3213                 tp->link_config.active_speed = current_speed;
3214                 tp->link_config.active_duplex = current_duplex;
3215
3216                 if (tp->link_config.autoneg == AUTONEG_ENABLE) {
3217                         if ((bmcr & BMCR_ANENABLE) &&
3218                             tg3_copper_is_advertising_all(tp,
3219                                                 tp->link_config.advertising)) {
3220                                 if (tg3_adv_1000T_flowctrl_ok(tp, &lcl_adv,
3221                                                                   &rmt_adv))
3222                                         current_link_up = 1;
3223                         }
3224                 } else {
3225                         if (!(bmcr & BMCR_ANENABLE) &&
3226                             tp->link_config.speed == current_speed &&
3227                             tp->link_config.duplex == current_duplex &&
3228                             tp->link_config.flowctrl ==
3229                             tp->link_config.active_flowctrl) {
3230                                 current_link_up = 1;
3231                         }
3232                 }
3233
3234                 if (current_link_up == 1 &&
3235                     tp->link_config.active_duplex == DUPLEX_FULL)
3236                         tg3_setup_flow_control(tp, lcl_adv, rmt_adv);
3237         }
3238
3239 relink:
3240         if (current_link_up == 0 || (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)) {
3241                 u32 tmp;
3242
3243                 tg3_phy_copper_begin(tp);
3244
3245                 tg3_readphy(tp, MII_BMSR, &tmp);
3246                 if (!tg3_readphy(tp, MII_BMSR, &tmp) &&
3247                     (tmp & BMSR_LSTATUS))
3248                         current_link_up = 1;
3249         }
3250
3251         tp->mac_mode &= ~MAC_MODE_PORT_MODE_MASK;
3252         if (current_link_up == 1) {
3253                 if (tp->link_config.active_speed == SPEED_100 ||
3254                     tp->link_config.active_speed == SPEED_10)
3255                         tp->mac_mode |= MAC_MODE_PORT_MODE_MII;
3256                 else
3257                         tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
3258         } else if (tp->phy_flags & TG3_PHYFLG_IS_FET)
3259                 tp->mac_mode |= MAC_MODE_PORT_MODE_MII;
3260         else
3261                 tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
3262
3263         tp->mac_mode &= ~MAC_MODE_HALF_DUPLEX;
3264         if (tp->link_config.active_duplex == DUPLEX_HALF)
3265                 tp->mac_mode |= MAC_MODE_HALF_DUPLEX;
3266
3267         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) {
3268                 if (current_link_up == 1 &&
3269                     tg3_5700_link_polarity(tp, tp->link_config.active_speed))
3270                         tp->mac_mode |= MAC_MODE_LINK_POLARITY;
3271                 else
3272                         tp->mac_mode &= ~MAC_MODE_LINK_POLARITY;
3273         }
3274
3275         /* ??? Without this setting Netgear GA302T PHY does not
3276          * ??? send/receive packets...
3277          */
3278         if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5411 &&
3279             tp->pci_chip_rev_id == CHIPREV_ID_5700_ALTIMA) {
3280                 tp->mi_mode |= MAC_MI_MODE_AUTO_POLL;
3281                 tw32_f(MAC_MI_MODE, tp->mi_mode);
3282                 udelay(80);
3283         }
3284
3285         tw32_f(MAC_MODE, tp->mac_mode);
3286         udelay(40);
3287
3288         if (tp->tg3_flags & TG3_FLAG_USE_LINKCHG_REG) {
3289                 /* Polled via timer. */
3290                 tw32_f(MAC_EVENT, 0);
3291         } else {
3292                 tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
3293         }
3294         udelay(40);
3295
3296         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 &&
3297             current_link_up == 1 &&
3298             tp->link_config.active_speed == SPEED_1000 &&
3299             ((tp->tg3_flags & TG3_FLAG_PCIX_MODE) ||
3300              (tp->tg3_flags & TG3_FLAG_PCI_HIGH_SPEED))) {
3301                 udelay(120);
3302                 tw32_f(MAC_STATUS,
3303                      (MAC_STATUS_SYNC_CHANGED |
3304                       MAC_STATUS_CFG_CHANGED));
3305                 udelay(40);
3306                 tg3_write_mem(tp,
3307                               NIC_SRAM_FIRMWARE_MBOX,
3308                               NIC_SRAM_FIRMWARE_MBOX_MAGIC2);
3309         }
3310
3311         /* Prevent send BD corruption. */
3312         if (tp->tg3_flags3 & TG3_FLG3_CLKREQ_BUG) {
3313                 u16 oldlnkctl, newlnkctl;
3314
3315                 pci_read_config_word(tp->pdev,
3316                                      tp->pcie_cap + PCI_EXP_LNKCTL,
3317                                      &oldlnkctl);
3318                 if (tp->link_config.active_speed == SPEED_100 ||
3319                     tp->link_config.active_speed == SPEED_10)
3320                         newlnkctl = oldlnkctl & ~PCI_EXP_LNKCTL_CLKREQ_EN;
3321                 else
3322                         newlnkctl = oldlnkctl | PCI_EXP_LNKCTL_CLKREQ_EN;
3323                 if (newlnkctl != oldlnkctl)
3324                         pci_write_config_word(tp->pdev,
3325                                               tp->pcie_cap + PCI_EXP_LNKCTL,
3326                                               newlnkctl);
3327         }
3328
3329         if (current_link_up != netif_carrier_ok(tp->dev)) {
3330                 if (current_link_up)
3331                         netif_carrier_on(tp->dev);
3332                 else
3333                         netif_carrier_off(tp->dev);
3334                 tg3_link_report(tp);
3335         }
3336
3337         return 0;
3338 }
3339
3340 struct tg3_fiber_aneginfo {
3341         int state;
3342 #define ANEG_STATE_UNKNOWN              0
3343 #define ANEG_STATE_AN_ENABLE            1
3344 #define ANEG_STATE_RESTART_INIT         2
3345 #define ANEG_STATE_RESTART              3
3346 #define ANEG_STATE_DISABLE_LINK_OK      4
3347 #define ANEG_STATE_ABILITY_DETECT_INIT  5
3348 #define ANEG_STATE_ABILITY_DETECT       6
3349 #define ANEG_STATE_ACK_DETECT_INIT      7
3350 #define ANEG_STATE_ACK_DETECT           8
3351 #define ANEG_STATE_COMPLETE_ACK_INIT    9
3352 #define ANEG_STATE_COMPLETE_ACK         10
3353 #define ANEG_STATE_IDLE_DETECT_INIT     11
3354 #define ANEG_STATE_IDLE_DETECT          12
3355 #define ANEG_STATE_LINK_OK              13
3356 #define ANEG_STATE_NEXT_PAGE_WAIT_INIT  14
3357 #define ANEG_STATE_NEXT_PAGE_WAIT       15
3358
3359         u32 flags;
3360 #define MR_AN_ENABLE            0x00000001
3361 #define MR_RESTART_AN           0x00000002
3362 #define MR_AN_COMPLETE          0x00000004
3363 #define MR_PAGE_RX              0x00000008
3364 #define MR_NP_LOADED            0x00000010
3365 #define MR_TOGGLE_TX            0x00000020
3366 #define MR_LP_ADV_FULL_DUPLEX   0x00000040
3367 #define MR_LP_ADV_HALF_DUPLEX   0x00000080
3368 #define MR_LP_ADV_SYM_PAUSE     0x00000100
3369 #define MR_LP_ADV_ASYM_PAUSE    0x00000200
3370 #define MR_LP_ADV_REMOTE_FAULT1 0x00000400
3371 #define MR_LP_ADV_REMOTE_FAULT2 0x00000800
3372 #define MR_LP_ADV_NEXT_PAGE     0x00001000
3373 #define MR_TOGGLE_RX            0x00002000
3374 #define MR_NP_RX                0x00004000
3375
3376 #define MR_LINK_OK              0x80000000
3377
3378         unsigned long link_time, cur_time;
3379
3380         u32 ability_match_cfg;
3381         int ability_match_count;
3382
3383         char ability_match, idle_match, ack_match;
3384
3385         u32 txconfig, rxconfig;
3386 #define ANEG_CFG_NP             0x00000080
3387 #define ANEG_CFG_ACK            0x00000040
3388 #define ANEG_CFG_RF2            0x00000020
3389 #define ANEG_CFG_RF1            0x00000010
3390 #define ANEG_CFG_PS2            0x00000001
3391 #define ANEG_CFG_PS1            0x00008000
3392 #define ANEG_CFG_HD             0x00004000
3393 #define ANEG_CFG_FD             0x00002000
3394 #define ANEG_CFG_INVAL          0x00001f06
3395
3396 };
3397 #define ANEG_OK         0
3398 #define ANEG_DONE       1
3399 #define ANEG_TIMER_ENAB 2
3400 #define ANEG_FAILED     -1
3401
3402 #define ANEG_STATE_SETTLE_TIME  10000
3403
3404 static int tg3_fiber_aneg_smachine(struct tg3 *tp,
3405                                    struct tg3_fiber_aneginfo *ap)
3406 {
3407         u16 flowctrl;
3408         unsigned long delta;
3409         u32 rx_cfg_reg;
3410         int ret;
3411
3412         if (ap->state == ANEG_STATE_UNKNOWN) {
3413                 ap->rxconfig = 0;
3414                 ap->link_time = 0;
3415                 ap->cur_time = 0;
3416                 ap->ability_match_cfg = 0;
3417                 ap->ability_match_count = 0;
3418                 ap->ability_match = 0;
3419                 ap->idle_match = 0;
3420                 ap->ack_match = 0;
3421         }
3422         ap->cur_time++;
3423
3424         if (tr32(MAC_STATUS) & MAC_STATUS_RCVD_CFG) {
3425                 rx_cfg_reg = tr32(MAC_RX_AUTO_NEG);
3426
3427                 if (rx_cfg_reg != ap->ability_match_cfg) {
3428                         ap->ability_match_cfg = rx_cfg_reg;
3429                         ap->ability_match = 0;
3430                         ap->ability_match_count = 0;
3431                 } else {
3432                         if (++ap->ability_match_count > 1) {
3433                                 ap->ability_match = 1;
3434                                 ap->ability_match_cfg = rx_cfg_reg;
3435                         }
3436                 }
3437                 if (rx_cfg_reg & ANEG_CFG_ACK)
3438                         ap->ack_match = 1;
3439                 else
3440                         ap->ack_match = 0;
3441
3442                 ap->idle_match = 0;
3443         } else {
3444                 ap->idle_match = 1;
3445                 ap->ability_match_cfg = 0;
3446                 ap->ability_match_count = 0;
3447                 ap->ability_match = 0;
3448                 ap->ack_match = 0;
3449
3450                 rx_cfg_reg = 0;
3451         }
3452
3453         ap->rxconfig = rx_cfg_reg;
3454         ret = ANEG_OK;
3455
3456         switch (ap->state) {
3457         case ANEG_STATE_UNKNOWN:
3458                 if (ap->flags & (MR_AN_ENABLE | MR_RESTART_AN))
3459                         ap->state = ANEG_STATE_AN_ENABLE;
3460
3461                 /* fallthru */
3462         case ANEG_STATE_AN_ENABLE:
3463                 ap->flags &= ~(MR_AN_COMPLETE | MR_PAGE_RX);
3464                 if (ap->flags & MR_AN_ENABLE) {
3465                         ap->link_time = 0;
3466                         ap->cur_time = 0;
3467                         ap->ability_match_cfg = 0;
3468                         ap->ability_match_count = 0;
3469                         ap->ability_match = 0;
3470                         ap->idle_match = 0;
3471                         ap->ack_match = 0;
3472
3473                         ap->state = ANEG_STATE_RESTART_INIT;
3474                 } else {
3475                         ap->state = ANEG_STATE_DISABLE_LINK_OK;
3476                 }
3477                 break;
3478
3479         case ANEG_STATE_RESTART_INIT:
3480                 ap->link_time = ap->cur_time;
3481                 ap->flags &= ~(MR_NP_LOADED);
3482                 ap->txconfig = 0;
3483                 tw32(MAC_TX_AUTO_NEG, 0);
3484                 tp->mac_mode |= MAC_MODE_SEND_CONFIGS;
3485                 tw32_f(MAC_MODE, tp->mac_mode);
3486                 udelay(40);
3487
3488                 ret = ANEG_TIMER_ENAB;
3489                 ap->state = ANEG_STATE_RESTART;
3490
3491                 /* fallthru */
3492         case ANEG_STATE_RESTART:
3493                 delta = ap->cur_time - ap->link_time;
3494                 if (delta > ANEG_STATE_SETTLE_TIME)
3495                         ap->state = ANEG_STATE_ABILITY_DETECT_INIT;
3496                 else
3497                         ret = ANEG_TIMER_ENAB;
3498                 break;
3499
3500         case ANEG_STATE_DISABLE_LINK_OK:
3501                 ret = ANEG_DONE;
3502                 break;
3503
3504         case ANEG_STATE_ABILITY_DETECT_INIT:
3505                 ap->flags &= ~(MR_TOGGLE_TX);
3506                 ap->txconfig = ANEG_CFG_FD;
3507                 flowctrl = tg3_advert_flowctrl_1000X(tp->link_config.flowctrl);
3508                 if (flowctrl & ADVERTISE_1000XPAUSE)
3509                         ap->txconfig |= ANEG_CFG_PS1;
3510                 if (flowctrl & ADVERTISE_1000XPSE_ASYM)
3511                         ap->txconfig |= ANEG_CFG_PS2;
3512                 tw32(MAC_TX_AUTO_NEG, ap->txconfig);
3513                 tp->mac_mode |= MAC_MODE_SEND_CONFIGS;
3514                 tw32_f(MAC_MODE, tp->mac_mode);
3515                 udelay(40);
3516
3517                 ap->state = ANEG_STATE_ABILITY_DETECT;
3518                 break;
3519
3520         case ANEG_STATE_ABILITY_DETECT:
3521                 if (ap->ability_match != 0 && ap->rxconfig != 0)
3522                         ap->state = ANEG_STATE_ACK_DETECT_INIT;
3523                 break;
3524
3525         case ANEG_STATE_ACK_DETECT_INIT:
3526                 ap->txconfig |= ANEG_CFG_ACK;
3527                 tw32(MAC_TX_AUTO_NEG, ap->txconfig);
3528                 tp->mac_mode |= MAC_MODE_SEND_CONFIGS;
3529                 tw32_f(MAC_MODE, tp->mac_mode);
3530                 udelay(40);
3531
3532                 ap->state = ANEG_STATE_ACK_DETECT;
3533
3534                 /* fallthru */
3535         case ANEG_STATE_ACK_DETECT:
3536                 if (ap->ack_match != 0) {
3537                         if ((ap->rxconfig & ~ANEG_CFG_ACK) ==
3538                             (ap->ability_match_cfg & ~ANEG_CFG_ACK)) {
3539                                 ap->state = ANEG_STATE_COMPLETE_ACK_INIT;
3540                         } else {
3541                                 ap->state = ANEG_STATE_AN_ENABLE;
3542                         }
3543                 } else if (ap->ability_match != 0 &&
3544                            ap->rxconfig == 0) {
3545                         ap->state = ANEG_STATE_AN_ENABLE;
3546                 }
3547                 break;
3548
3549         case ANEG_STATE_COMPLETE_ACK_INIT:
3550                 if (ap->rxconfig & ANEG_CFG_INVAL) {
3551                         ret = ANEG_FAILED;
3552                         break;
3553                 }
3554                 ap->flags &= ~(MR_LP_ADV_FULL_DUPLEX |
3555                                MR_LP_ADV_HALF_DUPLEX |
3556                                MR_LP_ADV_SYM_PAUSE |
3557                                MR_LP_ADV_ASYM_PAUSE |
3558                                MR_LP_ADV_REMOTE_FAULT1 |
3559                                MR_LP_ADV_REMOTE_FAULT2 |
3560                                MR_LP_ADV_NEXT_PAGE |
3561                                MR_TOGGLE_RX |
3562                                MR_NP_RX);
3563                 if (ap->rxconfig & ANEG_CFG_FD)
3564                         ap->flags |= MR_LP_ADV_FULL_DUPLEX;
3565                 if (ap->rxconfig & ANEG_CFG_HD)
3566                         ap->flags |= MR_LP_ADV_HALF_DUPLEX;
3567                 if (ap->rxconfig & ANEG_CFG_PS1)
3568                         ap->flags |= MR_LP_ADV_SYM_PAUSE;
3569                 if (ap->rxconfig & ANEG_CFG_PS2)
3570                         ap->flags |= MR_LP_ADV_ASYM_PAUSE;
3571                 if (ap->rxconfig & ANEG_CFG_RF1)
3572                         ap->flags |= MR_LP_ADV_REMOTE_FAULT1;
3573                 if (ap->rxconfig & ANEG_CFG_RF2)
3574                         ap->flags |= MR_LP_ADV_REMOTE_FAULT2;
3575                 if (ap->rxconfig & ANEG_CFG_NP)
3576                         ap->flags |= MR_LP_ADV_NEXT_PAGE;
3577
3578                 ap->link_time = ap->cur_time;
3579
3580                 ap->flags ^= (MR_TOGGLE_TX);
3581                 if (ap->rxconfig & 0x0008)
3582                         ap->flags |= MR_TOGGLE_RX;
3583                 if (ap->rxconfig & ANEG_CFG_NP)
3584                         ap->flags |= MR_NP_RX;
3585                 ap->flags |= MR_PAGE_RX;
3586
3587                 ap->state = ANEG_STATE_COMPLETE_ACK;
3588                 ret = ANEG_TIMER_ENAB;
3589                 break;
3590
3591         case ANEG_STATE_COMPLETE_ACK:
3592                 if (ap->ability_match != 0 &&
3593                     ap->rxconfig == 0) {
3594                         ap->state = ANEG_STATE_AN_ENABLE;
3595                         break;
3596                 }
3597                 delta = ap->cur_time - ap->link_time;
3598                 if (delta > ANEG_STATE_SETTLE_TIME) {
3599                         if (!(ap->flags & (MR_LP_ADV_NEXT_PAGE))) {
3600                                 ap->state = ANEG_STATE_IDLE_DETECT_INIT;
3601                         } else {
3602                                 if ((ap->txconfig & ANEG_CFG_NP) == 0 &&
3603                                     !(ap->flags & MR_NP_RX)) {
3604                                         ap->state = ANEG_STATE_IDLE_DETECT_INIT;
3605                                 } else {
3606                                         ret = ANEG_FAILED;
3607                                 }
3608                         }
3609                 }
3610                 break;
3611
3612         case ANEG_STATE_IDLE_DETECT_INIT:
3613                 ap->link_time = ap->cur_time;
3614                 tp->mac_mode &= ~MAC_MODE_SEND_CONFIGS;
3615                 tw32_f(MAC_MODE, tp->mac_mode);
3616                 udelay(40);
3617
3618                 ap->state = ANEG_STATE_IDLE_DETECT;
3619                 ret = ANEG_TIMER_ENAB;
3620                 break;
3621
3622         case ANEG_STATE_IDLE_DETECT:
3623                 if (ap->ability_match != 0 &&
3624                     ap->rxconfig == 0) {
3625                         ap->state = ANEG_STATE_AN_ENABLE;
3626                         break;
3627                 }
3628                 delta = ap->cur_time - ap->link_time;
3629                 if (delta > ANEG_STATE_SETTLE_TIME) {
3630                         /* XXX another gem from the Broadcom driver :( */
3631                         ap->state = ANEG_STATE_LINK_OK;
3632                 }
3633                 break;
3634
3635         case ANEG_STATE_LINK_OK:
3636                 ap->flags |= (MR_AN_COMPLETE | MR_LINK_OK);
3637                 ret = ANEG_DONE;
3638                 break;
3639
3640         case ANEG_STATE_NEXT_PAGE_WAIT_INIT:
3641                 /* ??? unimplemented */
3642                 break;
3643
3644         case ANEG_STATE_NEXT_PAGE_WAIT:
3645                 /* ??? unimplemented */
3646                 break;
3647
3648         default:
3649                 ret = ANEG_FAILED;
3650                 break;
3651         }
3652
3653         return ret;
3654 }
3655
3656 static int fiber_autoneg(struct tg3 *tp, u32 *txflags, u32 *rxflags)
3657 {
3658         int res = 0;
3659         struct tg3_fiber_aneginfo aninfo;
3660         int status = ANEG_FAILED;
3661         unsigned int tick;
3662         u32 tmp;
3663
3664         tw32_f(MAC_TX_AUTO_NEG, 0);
3665
3666         tmp = tp->mac_mode & ~MAC_MODE_PORT_MODE_MASK;
3667         tw32_f(MAC_MODE, tmp | MAC_MODE_PORT_MODE_GMII);
3668         udelay(40);
3669
3670         tw32_f(MAC_MODE, tp->mac_mode | MAC_MODE_SEND_CONFIGS);
3671         udelay(40);
3672
3673         memset(&aninfo, 0, sizeof(aninfo));
3674         aninfo.flags |= MR_AN_ENABLE;
3675         aninfo.state = ANEG_STATE_UNKNOWN;
3676         aninfo.cur_time = 0;
3677         tick = 0;
3678         while (++tick < 195000) {
3679                 status = tg3_fiber_aneg_smachine(tp, &aninfo);
3680                 if (status == ANEG_DONE || status == ANEG_FAILED)
3681                         break;
3682
3683                 udelay(1);
3684         }
3685
3686         tp->mac_mode &= ~MAC_MODE_SEND_CONFIGS;
3687         tw32_f(MAC_MODE, tp->mac_mode);
3688         udelay(40);
3689
3690         *txflags = aninfo.txconfig;
3691         *rxflags = aninfo.flags;
3692
3693         if (status == ANEG_DONE &&
3694             (aninfo.flags & (MR_AN_COMPLETE | MR_LINK_OK |
3695                              MR_LP_ADV_FULL_DUPLEX)))
3696                 res = 1;
3697
3698         return res;
3699 }
3700
3701 static void tg3_init_bcm8002(struct tg3 *tp)
3702 {
3703         u32 mac_status = tr32(MAC_STATUS);
3704         int i;
3705
3706         /* Reset when initting first time or we have a link. */
3707         if ((tp->tg3_flags & TG3_FLAG_INIT_COMPLETE) &&
3708             !(mac_status & MAC_STATUS_PCS_SYNCED))
3709                 return;
3710
3711         /* Set PLL lock range. */
3712         tg3_writephy(tp, 0x16, 0x8007);
3713
3714         /* SW reset */
3715         tg3_writephy(tp, MII_BMCR, BMCR_RESET);
3716
3717         /* Wait for reset to complete. */
3718         /* XXX schedule_timeout() ... */
3719         for (i = 0; i < 500; i++)
3720                 udelay(10);
3721
3722         /* Config mode; select PMA/Ch 1 regs. */
3723         tg3_writephy(tp, 0x10, 0x8411);
3724
3725         /* Enable auto-lock and comdet, select txclk for tx. */
3726         tg3_writephy(tp, 0x11, 0x0a10);
3727
3728         tg3_writephy(tp, 0x18, 0x00a0);
3729         tg3_writephy(tp, 0x16, 0x41ff);
3730
3731         /* Assert and deassert POR. */
3732         tg3_writephy(tp, 0x13, 0x0400);
3733         udelay(40);
3734         tg3_writephy(tp, 0x13, 0x0000);
3735
3736         tg3_writephy(tp, 0x11, 0x0a50);
3737         udelay(40);
3738         tg3_writephy(tp, 0x11, 0x0a10);
3739
3740         /* Wait for signal to stabilize */
3741         /* XXX schedule_timeout() ... */
3742         for (i = 0; i < 15000; i++)
3743                 udelay(10);
3744
3745         /* Deselect the channel register so we can read the PHYID
3746          * later.
3747          */
3748         tg3_writephy(tp, 0x10, 0x8011);
3749 }
3750
3751 static int tg3_setup_fiber_hw_autoneg(struct tg3 *tp, u32 mac_status)
3752 {
3753         u16 flowctrl;
3754         u32 sg_dig_ctrl, sg_dig_status;
3755         u32 serdes_cfg, expected_sg_dig_ctrl;
3756         int workaround, port_a;
3757         int current_link_up;
3758
3759         serdes_cfg = 0;
3760         expected_sg_dig_ctrl = 0;
3761         workaround = 0;
3762         port_a = 1;
3763         current_link_up = 0;
3764
3765         if (tp->pci_chip_rev_id != CHIPREV_ID_5704_A0 &&
3766             tp->pci_chip_rev_id != CHIPREV_ID_5704_A1) {
3767                 workaround = 1;
3768                 if (tr32(TG3PCI_DUAL_MAC_CTRL) & DUAL_MAC_CTRL_ID)
3769                         port_a = 0;
3770
3771                 /* preserve bits 0-11,13,14 for signal pre-emphasis */
3772                 /* preserve bits 20-23 for voltage regulator */
3773                 serdes_cfg = tr32(MAC_SERDES_CFG) & 0x00f06fff;
3774         }
3775
3776         sg_dig_ctrl = tr32(SG_DIG_CTRL);
3777
3778         if (tp->link_config.autoneg != AUTONEG_ENABLE) {
3779                 if (sg_dig_ctrl & SG_DIG_USING_HW_AUTONEG) {
3780                         if (workaround) {
3781                                 u32 val = serdes_cfg;
3782
3783                                 if (port_a)
3784                                         val |= 0xc010000;
3785                                 else
3786                                         val |= 0x4010000;
3787                                 tw32_f(MAC_SERDES_CFG, val);
3788                         }
3789
3790                         tw32_f(SG_DIG_CTRL, SG_DIG_COMMON_SETUP);
3791                 }
3792                 if (mac_status & MAC_STATUS_PCS_SYNCED) {
3793                         tg3_setup_flow_control(tp, 0, 0);
3794                         current_link_up = 1;
3795                 }
3796                 goto out;
3797         }
3798
3799         /* Want auto-negotiation.  */
3800         expected_sg_dig_ctrl = SG_DIG_USING_HW_AUTONEG | SG_DIG_COMMON_SETUP;
3801
3802         flowctrl = tg3_advert_flowctrl_1000X(tp->link_config.flowctrl);
3803         if (flowctrl & ADVERTISE_1000XPAUSE)
3804                 expected_sg_dig_ctrl |= SG_DIG_PAUSE_CAP;
3805         if (flowctrl & ADVERTISE_1000XPSE_ASYM)
3806                 expected_sg_dig_ctrl |= SG_DIG_ASYM_PAUSE;
3807
3808         if (sg_dig_ctrl != expected_sg_dig_ctrl) {
3809                 if ((tp->phy_flags & TG3_PHYFLG_PARALLEL_DETECT) &&
3810                     tp->serdes_counter &&
3811                     ((mac_status & (MAC_STATUS_PCS_SYNCED |
3812                                     MAC_STATUS_RCVD_CFG)) ==
3813                      MAC_STATUS_PCS_SYNCED)) {
3814                         tp->serdes_counter--;
3815                         current_link_up = 1;
3816                         goto out;
3817                 }
3818 restart_autoneg:
3819                 if (workaround)
3820                         tw32_f(MAC_SERDES_CFG, serdes_cfg | 0xc011000);
3821                 tw32_f(SG_DIG_CTRL, expected_sg_dig_ctrl | SG_DIG_SOFT_RESET);
3822                 udelay(5);
3823                 tw32_f(SG_DIG_CTRL, expected_sg_dig_ctrl);
3824
3825                 tp->serdes_counter = SERDES_AN_TIMEOUT_5704S;
3826                 tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
3827         } else if (mac_status & (MAC_STATUS_PCS_SYNCED |
3828                                  MAC_STATUS_SIGNAL_DET)) {
3829                 sg_dig_status = tr32(SG_DIG_STATUS);
3830                 mac_status = tr32(MAC_STATUS);
3831
3832                 if ((sg_dig_status & SG_DIG_AUTONEG_COMPLETE) &&
3833                     (mac_status & MAC_STATUS_PCS_SYNCED)) {
3834                         u32 local_adv = 0, remote_adv = 0;
3835
3836                         if (sg_dig_ctrl & SG_DIG_PAUSE_CAP)
3837                                 local_adv |= ADVERTISE_1000XPAUSE;
3838                         if (sg_dig_ctrl & SG_DIG_ASYM_PAUSE)
3839                                 local_adv |= ADVERTISE_1000XPSE_ASYM;
3840
3841                         if (sg_dig_status & SG_DIG_PARTNER_PAUSE_CAPABLE)
3842                                 remote_adv |= LPA_1000XPAUSE;
3843                         if (sg_dig_status & SG_DIG_PARTNER_ASYM_PAUSE)
3844                                 remote_adv |= LPA_1000XPAUSE_ASYM;
3845
3846                         tg3_setup_flow_control(tp, local_adv, remote_adv);
3847                         current_link_up = 1;
3848                         tp->serdes_counter = 0;
3849                         tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
3850                 } else if (!(sg_dig_status & SG_DIG_AUTONEG_COMPLETE)) {
3851                         if (tp->serdes_counter)
3852                                 tp->serdes_counter--;
3853                         else {
3854                                 if (workaround) {
3855                                         u32 val = serdes_cfg;
3856
3857                                         if (port_a)
3858                                                 val |= 0xc010000;
3859                                         else
3860                                                 val |= 0x4010000;
3861
3862                                         tw32_f(MAC_SERDES_CFG, val);
3863                                 }
3864
3865                                 tw32_f(SG_DIG_CTRL, SG_DIG_COMMON_SETUP);
3866                                 udelay(40);
3867
3868                                 /* Link parallel detection - link is up */
3869                                 /* only if we have PCS_SYNC and not */
3870                                 /* receiving config code words */
3871                                 mac_status = tr32(MAC_STATUS);
3872                                 if ((mac_status & MAC_STATUS_PCS_SYNCED) &&
3873                                     !(mac_status & MAC_STATUS_RCVD_CFG)) {
3874                                         tg3_setup_flow_control(tp, 0, 0);
3875                                         current_link_up = 1;
3876                                         tp->phy_flags |=
3877                                                 TG3_PHYFLG_PARALLEL_DETECT;
3878                                         tp->serdes_counter =
3879                                                 SERDES_PARALLEL_DET_TIMEOUT;
3880                                 } else
3881                                         goto restart_autoneg;
3882                         }
3883                 }
3884         } else {
3885                 tp->serdes_counter = SERDES_AN_TIMEOUT_5704S;
3886                 tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
3887         }
3888
3889 out:
3890         return current_link_up;
3891 }
3892
3893 static int tg3_setup_fiber_by_hand(struct tg3 *tp, u32 mac_status)
3894 {
3895         int current_link_up = 0;
3896
3897         if (!(mac_status & MAC_STATUS_PCS_SYNCED))
3898                 goto out;
3899
3900         if (tp->link_config.autoneg == AUTONEG_ENABLE) {
3901                 u32 txflags, rxflags;
3902                 int i;
3903
3904                 if (fiber_autoneg(tp, &txflags, &rxflags)) {
3905                         u32 local_adv = 0, remote_adv = 0;
3906
3907                         if (txflags & ANEG_CFG_PS1)
3908                                 local_adv |= ADVERTISE_1000XPAUSE;
3909                         if (txflags & ANEG_CFG_PS2)
3910                                 local_adv |= ADVERTISE_1000XPSE_ASYM;
3911
3912                         if (rxflags & MR_LP_ADV_SYM_PAUSE)
3913                                 remote_adv |= LPA_1000XPAUSE;
3914                         if (rxflags & MR_LP_ADV_ASYM_PAUSE)
3915                                 remote_adv |= LPA_1000XPAUSE_ASYM;
3916
3917                         tg3_setup_flow_control(tp, local_adv, remote_adv);
3918
3919                         current_link_up = 1;
3920                 }
3921                 for (i = 0; i < 30; i++) {
3922                         udelay(20);
3923                         tw32_f(MAC_STATUS,
3924                                (MAC_STATUS_SYNC_CHANGED |
3925                                 MAC_STATUS_CFG_CHANGED));
3926                         udelay(40);
3927                         if ((tr32(MAC_STATUS) &
3928                              (MAC_STATUS_SYNC_CHANGED |
3929                               MAC_STATUS_CFG_CHANGED)) == 0)
3930                                 break;
3931                 }
3932
3933                 mac_status = tr32(MAC_STATUS);
3934                 if (current_link_up == 0 &&
3935                     (mac_status & MAC_STATUS_PCS_SYNCED) &&
3936                     !(mac_status & MAC_STATUS_RCVD_CFG))
3937                         current_link_up = 1;
3938         } else {
3939                 tg3_setup_flow_control(tp, 0, 0);
3940
3941                 /* Forcing 1000FD link up. */
3942                 current_link_up = 1;
3943
3944                 tw32_f(MAC_MODE, (tp->mac_mode | MAC_MODE_SEND_CONFIGS));
3945                 udelay(40);
3946
3947                 tw32_f(MAC_MODE, tp->mac_mode);
3948                 udelay(40);
3949         }
3950
3951 out:
3952         return current_link_up;
3953 }
3954
3955 static int tg3_setup_fiber_phy(struct tg3 *tp, int force_reset)
3956 {
3957         u32 orig_pause_cfg;
3958         u16 orig_active_speed;
3959         u8 orig_active_duplex;
3960         u32 mac_status;
3961         int current_link_up;
3962         int i;
3963
3964         orig_pause_cfg = tp->link_config.active_flowctrl;
3965         orig_active_speed = tp->link_config.active_speed;
3966         orig_active_duplex = tp->link_config.active_duplex;
3967
3968         if (!(tp->tg3_flags2 & TG3_FLG2_HW_AUTONEG) &&
3969             netif_carrier_ok(tp->dev) &&
3970             (tp->tg3_flags & TG3_FLAG_INIT_COMPLETE)) {
3971                 mac_status = tr32(MAC_STATUS);
3972                 mac_status &= (MAC_STATUS_PCS_SYNCED |
3973                                MAC_STATUS_SIGNAL_DET |
3974                                MAC_STATUS_CFG_CHANGED |
3975                                MAC_STATUS_RCVD_CFG);
3976                 if (mac_status == (MAC_STATUS_PCS_SYNCED |
3977                                    MAC_STATUS_SIGNAL_DET)) {
3978                         tw32_f(MAC_STATUS, (MAC_STATUS_SYNC_CHANGED |
3979                                             MAC_STATUS_CFG_CHANGED));
3980                         return 0;
3981                 }
3982         }
3983
3984         tw32_f(MAC_TX_AUTO_NEG, 0);
3985
3986         tp->mac_mode &= ~(MAC_MODE_PORT_MODE_MASK | MAC_MODE_HALF_DUPLEX);
3987         tp->mac_mode |= MAC_MODE_PORT_MODE_TBI;
3988         tw32_f(MAC_MODE, tp->mac_mode);
3989         udelay(40);
3990
3991         if (tp->phy_id == TG3_PHY_ID_BCM8002)
3992                 tg3_init_bcm8002(tp);
3993
3994         /* Enable link change event even when serdes polling.  */
3995         tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
3996         udelay(40);
3997
3998         current_link_up = 0;
3999         mac_status = tr32(MAC_STATUS);
4000
4001         if (tp->tg3_flags2 & TG3_FLG2_HW_AUTONEG)
4002                 current_link_up = tg3_setup_fiber_hw_autoneg(tp, mac_status);
4003         else
4004                 current_link_up = tg3_setup_fiber_by_hand(tp, mac_status);
4005
4006         tp->napi[0].hw_status->status =
4007                 (SD_STATUS_UPDATED |
4008                  (tp->napi[0].hw_status->status & ~SD_STATUS_LINK_CHG));
4009
4010         for (i = 0; i < 100; i++) {
4011                 tw32_f(MAC_STATUS, (MAC_STATUS_SYNC_CHANGED |
4012                                     MAC_STATUS_CFG_CHANGED));
4013                 udelay(5);
4014                 if ((tr32(MAC_STATUS) & (MAC_STATUS_SYNC_CHANGED |
4015                                          MAC_STATUS_CFG_CHANGED |
4016                                          MAC_STATUS_LNKSTATE_CHANGED)) == 0)
4017                         break;
4018         }
4019
4020         mac_status = tr32(MAC_STATUS);
4021         if ((mac_status & MAC_STATUS_PCS_SYNCED) == 0) {
4022                 current_link_up = 0;
4023                 if (tp->link_config.autoneg == AUTONEG_ENABLE &&
4024                     tp->serdes_counter == 0) {
4025                         tw32_f(MAC_MODE, (tp->mac_mode |
4026                                           MAC_MODE_SEND_CONFIGS));
4027                         udelay(1);
4028                         tw32_f(MAC_MODE, tp->mac_mode);
4029                 }
4030         }
4031
4032         if (current_link_up == 1) {
4033                 tp->link_config.active_speed = SPEED_1000;
4034                 tp->link_config.active_duplex = DUPLEX_FULL;
4035                 tw32(MAC_LED_CTRL, (tp->led_ctrl |
4036                                     LED_CTRL_LNKLED_OVERRIDE |
4037                                     LED_CTRL_1000MBPS_ON));
4038         } else {
4039                 tp->link_config.active_speed = SPEED_INVALID;
4040                 tp->link_config.active_duplex = DUPLEX_INVALID;
4041                 tw32(MAC_LED_CTRL, (tp->led_ctrl |
4042                                     LED_CTRL_LNKLED_OVERRIDE |
4043                                     LED_CTRL_TRAFFIC_OVERRIDE));
4044         }
4045
4046         if (current_link_up != netif_carrier_ok(tp->dev)) {
4047                 if (current_link_up)
4048                         netif_carrier_on(tp->dev);
4049                 else
4050                         netif_carrier_off(tp->dev);
4051                 tg3_link_report(tp);
4052         } else {
4053                 u32 now_pause_cfg = tp->link_config.active_flowctrl;
4054                 if (orig_pause_cfg != now_pause_cfg ||
4055                     orig_active_speed != tp->link_config.active_speed ||
4056                     orig_active_duplex != tp->link_config.active_duplex)
4057                         tg3_link_report(tp);
4058         }
4059
4060         return 0;
4061 }
4062
4063 static int tg3_setup_fiber_mii_phy(struct tg3 *tp, int force_reset)
4064 {
4065         int current_link_up, err = 0;
4066         u32 bmsr, bmcr;
4067         u16 current_speed;
4068         u8 current_duplex;
4069         u32 local_adv, remote_adv;
4070
4071         tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
4072         tw32_f(MAC_MODE, tp->mac_mode);
4073         udelay(40);
4074
4075         tw32(MAC_EVENT, 0);
4076
4077         tw32_f(MAC_STATUS,
4078              (MAC_STATUS_SYNC_CHANGED |
4079               MAC_STATUS_CFG_CHANGED |
4080               MAC_STATUS_MI_COMPLETION |
4081               MAC_STATUS_LNKSTATE_CHANGED));
4082         udelay(40);
4083
4084         if (force_reset)
4085                 tg3_phy_reset(tp);
4086
4087         current_link_up = 0;
4088         current_speed = SPEED_INVALID;
4089         current_duplex = DUPLEX_INVALID;
4090
4091         err |= tg3_readphy(tp, MII_BMSR, &bmsr);
4092         err |= tg3_readphy(tp, MII_BMSR, &bmsr);
4093         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714) {
4094                 if (tr32(MAC_TX_STATUS) & TX_STATUS_LINK_UP)
4095                         bmsr |= BMSR_LSTATUS;
4096                 else
4097                         bmsr &= ~BMSR_LSTATUS;
4098         }
4099
4100         err |= tg3_readphy(tp, MII_BMCR, &bmcr);
4101
4102         if ((tp->link_config.autoneg == AUTONEG_ENABLE) && !force_reset &&
4103             (tp->phy_flags & TG3_PHYFLG_PARALLEL_DETECT)) {
4104                 /* do nothing, just check for link up at the end */
4105         } else if (tp->link_config.autoneg == AUTONEG_ENABLE) {
4106                 u32 adv, new_adv;
4107
4108                 err |= tg3_readphy(tp, MII_ADVERTISE, &adv);
4109                 new_adv = adv & ~(ADVERTISE_1000XFULL | ADVERTISE_1000XHALF |
4110                                   ADVERTISE_1000XPAUSE |
4111                                   ADVERTISE_1000XPSE_ASYM |
4112                                   ADVERTISE_SLCT);
4113
4114                 new_adv |= tg3_advert_flowctrl_1000X(tp->link_config.flowctrl);
4115
4116                 if (tp->link_config.advertising & ADVERTISED_1000baseT_Half)
4117                         new_adv |= ADVERTISE_1000XHALF;
4118                 if (tp->link_config.advertising & ADVERTISED_1000baseT_Full)
4119                         new_adv |= ADVERTISE_1000XFULL;
4120
4121                 if ((new_adv != adv) || !(bmcr & BMCR_ANENABLE)) {
4122                         tg3_writephy(tp, MII_ADVERTISE, new_adv);
4123                         bmcr |= BMCR_ANENABLE | BMCR_ANRESTART;
4124                         tg3_writephy(tp, MII_BMCR, bmcr);
4125
4126                         tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
4127                         tp->serdes_counter = SERDES_AN_TIMEOUT_5714S;
4128                         tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
4129
4130                         return err;
4131                 }
4132         } else {
4133                 u32 new_bmcr;
4134
4135                 bmcr &= ~BMCR_SPEED1000;
4136                 new_bmcr = bmcr & ~(BMCR_ANENABLE | BMCR_FULLDPLX);
4137
4138                 if (tp->link_config.duplex == DUPLEX_FULL)
4139                         new_bmcr |= BMCR_FULLDPLX;
4140
4141                 if (new_bmcr != bmcr) {
4142                         /* BMCR_SPEED1000 is a reserved bit that needs
4143                          * to be set on write.
4144                          */
4145                         new_bmcr |= BMCR_SPEED1000;
4146
4147                         /* Force a linkdown */
4148                         if (netif_carrier_ok(tp->dev)) {
4149                                 u32 adv;
4150
4151                                 err |= tg3_readphy(tp, MII_ADVERTISE, &adv);
4152                                 adv &= ~(ADVERTISE_1000XFULL |
4153                                          ADVERTISE_1000XHALF |
4154                                          ADVERTISE_SLCT);
4155                                 tg3_writephy(tp, MII_ADVERTISE, adv);
4156                                 tg3_writephy(tp, MII_BMCR, bmcr |
4157                                                            BMCR_ANRESTART |
4158                                                            BMCR_ANENABLE);
4159                                 udelay(10);
4160                                 netif_carrier_off(tp->dev);
4161                         }
4162                         tg3_writephy(tp, MII_BMCR, new_bmcr);
4163                         bmcr = new_bmcr;
4164                         err |= tg3_readphy(tp, MII_BMSR, &bmsr);
4165                         err |= tg3_readphy(tp, MII_BMSR, &bmsr);
4166                         if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
4167                             ASIC_REV_5714) {
4168                                 if (tr32(MAC_TX_STATUS) & TX_STATUS_LINK_UP)
4169                                         bmsr |= BMSR_LSTATUS;
4170                                 else
4171                                         bmsr &= ~BMSR_LSTATUS;
4172                         }
4173                         tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
4174                 }
4175         }
4176
4177         if (bmsr & BMSR_LSTATUS) {
4178                 current_speed = SPEED_1000;
4179                 current_link_up = 1;
4180                 if (bmcr & BMCR_FULLDPLX)
4181                         current_duplex = DUPLEX_FULL;
4182                 else
4183                         current_duplex = DUPLEX_HALF;
4184
4185                 local_adv = 0;
4186                 remote_adv = 0;
4187
4188                 if (bmcr & BMCR_ANENABLE) {
4189                         u32 common;
4190
4191                         err |= tg3_readphy(tp, MII_ADVERTISE, &local_adv);
4192                         err |= tg3_readphy(tp, MII_LPA, &remote_adv);
4193                         common = local_adv & remote_adv;
4194                         if (common & (ADVERTISE_1000XHALF |
4195                                       ADVERTISE_1000XFULL)) {
4196                                 if (common & ADVERTISE_1000XFULL)
4197                                         current_duplex = DUPLEX_FULL;
4198                                 else
4199                                         current_duplex = DUPLEX_HALF;
4200                         } else if (!(tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
4201                                 /* Link is up via parallel detect */
4202                         } else {
4203                                 current_link_up = 0;
4204                         }
4205                 }
4206         }
4207
4208         if (current_link_up == 1 && current_duplex == DUPLEX_FULL)
4209                 tg3_setup_flow_control(tp, local_adv, remote_adv);
4210
4211         tp->mac_mode &= ~MAC_MODE_HALF_DUPLEX;
4212         if (tp->link_config.active_duplex == DUPLEX_HALF)
4213                 tp->mac_mode |= MAC_MODE_HALF_DUPLEX;
4214
4215         tw32_f(MAC_MODE, tp->mac_mode);
4216         udelay(40);
4217
4218         tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
4219
4220         tp->link_config.active_speed = current_speed;
4221         tp->link_config.active_duplex = current_duplex;
4222
4223         if (current_link_up != netif_carrier_ok(tp->dev)) {
4224                 if (current_link_up)
4225                         netif_carrier_on(tp->dev);
4226                 else {
4227                         netif_carrier_off(tp->dev);
4228                         tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
4229                 }
4230                 tg3_link_report(tp);
4231         }
4232         return err;
4233 }
4234
4235 static void tg3_serdes_parallel_detect(struct tg3 *tp)
4236 {
4237         if (tp->serdes_counter) {
4238                 /* Give autoneg time to complete. */
4239                 tp->serdes_counter--;
4240                 return;
4241         }
4242
4243         if (!netif_carrier_ok(tp->dev) &&
4244             (tp->link_config.autoneg == AUTONEG_ENABLE)) {
4245                 u32 bmcr;
4246
4247                 tg3_readphy(tp, MII_BMCR, &bmcr);
4248                 if (bmcr & BMCR_ANENABLE) {
4249                         u32 phy1, phy2;
4250
4251                         /* Select shadow register 0x1f */
4252                         tg3_writephy(tp, MII_TG3_MISC_SHDW, 0x7c00);
4253                         tg3_readphy(tp, MII_TG3_MISC_SHDW, &phy1);
4254
4255                         /* Select expansion interrupt status register */
4256                         tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
4257                                          MII_TG3_DSP_EXP1_INT_STAT);
4258                         tg3_readphy(tp, MII_TG3_DSP_RW_PORT, &phy2);
4259                         tg3_readphy(tp, MII_TG3_DSP_RW_PORT, &phy2);
4260
4261                         if ((phy1 & 0x10) && !(phy2 & 0x20)) {
4262                                 /* We have signal detect and not receiving
4263                                  * config code words, link is up by parallel
4264                                  * detection.
4265                                  */
4266
4267                                 bmcr &= ~BMCR_ANENABLE;
4268                                 bmcr |= BMCR_SPEED1000 | BMCR_FULLDPLX;
4269                                 tg3_writephy(tp, MII_BMCR, bmcr);
4270                                 tp->phy_flags |= TG3_PHYFLG_PARALLEL_DETECT;
4271                         }
4272                 }
4273         } else if (netif_carrier_ok(tp->dev) &&
4274                    (tp->link_config.autoneg == AUTONEG_ENABLE) &&
4275                    (tp->phy_flags & TG3_PHYFLG_PARALLEL_DETECT)) {
4276                 u32 phy2;
4277
4278                 /* Select expansion interrupt status register */
4279                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
4280                                  MII_TG3_DSP_EXP1_INT_STAT);
4281                 tg3_readphy(tp, MII_TG3_DSP_RW_PORT, &phy2);
4282                 if (phy2 & 0x20) {
4283                         u32 bmcr;
4284
4285                         /* Config code words received, turn on autoneg. */
4286                         tg3_readphy(tp, MII_BMCR, &bmcr);
4287                         tg3_writephy(tp, MII_BMCR, bmcr | BMCR_ANENABLE);
4288
4289                         tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
4290
4291                 }
4292         }
4293 }
4294
4295 static int tg3_setup_phy(struct tg3 *tp, int force_reset)
4296 {
4297         int err;
4298
4299         if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES)
4300                 err = tg3_setup_fiber_phy(tp, force_reset);
4301         else if (tp->phy_flags & TG3_PHYFLG_MII_SERDES)
4302                 err = tg3_setup_fiber_mii_phy(tp, force_reset);
4303         else
4304                 err = tg3_setup_copper_phy(tp, force_reset);
4305
4306         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX) {
4307                 u32 val, scale;
4308
4309                 val = tr32(TG3_CPMU_CLCK_STAT) & CPMU_CLCK_STAT_MAC_CLCK_MASK;
4310                 if (val == CPMU_CLCK_STAT_MAC_CLCK_62_5)
4311                         scale = 65;
4312                 else if (val == CPMU_CLCK_STAT_MAC_CLCK_6_25)
4313                         scale = 6;
4314                 else
4315                         scale = 12;
4316
4317                 val = tr32(GRC_MISC_CFG) & ~GRC_MISC_CFG_PRESCALAR_MASK;
4318                 val |= (scale << GRC_MISC_CFG_PRESCALAR_SHIFT);
4319                 tw32(GRC_MISC_CFG, val);
4320         }
4321
4322         if (tp->link_config.active_speed == SPEED_1000 &&
4323             tp->link_config.active_duplex == DUPLEX_HALF)
4324                 tw32(MAC_TX_LENGTHS,
4325                      ((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
4326                       (6 << TX_LENGTHS_IPG_SHIFT) |
4327                       (0xff << TX_LENGTHS_SLOT_TIME_SHIFT)));
4328         else
4329                 tw32(MAC_TX_LENGTHS,
4330                      ((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
4331                       (6 << TX_LENGTHS_IPG_SHIFT) |
4332                       (32 << TX_LENGTHS_SLOT_TIME_SHIFT)));
4333
4334         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
4335                 if (netif_carrier_ok(tp->dev)) {
4336                         tw32(HOSTCC_STAT_COAL_TICKS,
4337                              tp->coal.stats_block_coalesce_usecs);
4338                 } else {
4339                         tw32(HOSTCC_STAT_COAL_TICKS, 0);
4340                 }
4341         }
4342
4343         if (tp->tg3_flags & TG3_FLAG_ASPM_WORKAROUND) {
4344                 u32 val = tr32(PCIE_PWR_MGMT_THRESH);
4345                 if (!netif_carrier_ok(tp->dev))
4346                         val = (val & ~PCIE_PWR_MGMT_L1_THRESH_MSK) |
4347                               tp->pwrmgmt_thresh;
4348                 else
4349                         val |= PCIE_PWR_MGMT_L1_THRESH_MSK;
4350                 tw32(PCIE_PWR_MGMT_THRESH, val);
4351         }
4352
4353         return err;
4354 }
4355
4356 /* This is called whenever we suspect that the system chipset is re-
4357  * ordering the sequence of MMIO to the tx send mailbox. The symptom
4358  * is bogus tx completions. We try to recover by setting the
4359  * TG3_FLAG_MBOX_WRITE_REORDER flag and resetting the chip later
4360  * in the workqueue.
4361  */
4362 static void tg3_tx_recover(struct tg3 *tp)
4363 {
4364         BUG_ON((tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER) ||
4365                tp->write32_tx_mbox == tg3_write_indirect_mbox);
4366
4367         netdev_warn(tp->dev,
4368                     "The system may be re-ordering memory-mapped I/O "
4369                     "cycles to the network device, attempting to recover. "
4370                     "Please report the problem to the driver maintainer "
4371                     "and include system chipset information.\n");
4372
4373         spin_lock(&tp->lock);
4374         tp->tg3_flags |= TG3_FLAG_TX_RECOVERY_PENDING;
4375         spin_unlock(&tp->lock);
4376 }
4377
4378 static inline u32 tg3_tx_avail(struct tg3_napi *tnapi)
4379 {
4380         /* Tell compiler to fetch tx indices from memory. */
4381         barrier();
4382         return tnapi->tx_pending -
4383                ((tnapi->tx_prod - tnapi->tx_cons) & (TG3_TX_RING_SIZE - 1));
4384 }
4385
4386 /* Tigon3 never reports partial packet sends.  So we do not
4387  * need special logic to handle SKBs that have not had all
4388  * of their frags sent yet, like SunGEM does.
4389  */
4390 static void tg3_tx(struct tg3_napi *tnapi)
4391 {
4392         struct tg3 *tp = tnapi->tp;
4393         u32 hw_idx = tnapi->hw_status->idx[0].tx_consumer;
4394         u32 sw_idx = tnapi->tx_cons;
4395         struct netdev_queue *txq;
4396         int index = tnapi - tp->napi;
4397
4398         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
4399                 index--;
4400
4401         txq = netdev_get_tx_queue(tp->dev, index);
4402
4403         while (sw_idx != hw_idx) {
4404                 struct ring_info *ri = &tnapi->tx_buffers[sw_idx];
4405                 struct sk_buff *skb = ri->skb;
4406                 int i, tx_bug = 0;
4407
4408                 if (unlikely(skb == NULL)) {
4409                         tg3_tx_recover(tp);
4410                         return;
4411                 }
4412
4413                 pci_unmap_single(tp->pdev,
4414                                  dma_unmap_addr(ri, mapping),
4415                                  skb_headlen(skb),
4416                                  PCI_DMA_TODEVICE);
4417
4418                 ri->skb = NULL;
4419
4420                 sw_idx = NEXT_TX(sw_idx);
4421
4422                 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
4423                         ri = &tnapi->tx_buffers[sw_idx];
4424                         if (unlikely(ri->skb != NULL || sw_idx == hw_idx))
4425                                 tx_bug = 1;
4426
4427                         pci_unmap_page(tp->pdev,
4428                                        dma_unmap_addr(ri, mapping),
4429                                        skb_shinfo(skb)->frags[i].size,
4430                                        PCI_DMA_TODEVICE);
4431                         sw_idx = NEXT_TX(sw_idx);
4432                 }
4433
4434                 dev_kfree_skb(skb);
4435
4436                 if (unlikely(tx_bug)) {
4437                         tg3_tx_recover(tp);
4438                         return;
4439                 }
4440         }
4441
4442         tnapi->tx_cons = sw_idx;
4443
4444         /* Need to make the tx_cons update visible to tg3_start_xmit()
4445          * before checking for netif_queue_stopped().  Without the
4446          * memory barrier, there is a small possibility that tg3_start_xmit()
4447          * will miss it and cause the queue to be stopped forever.
4448          */
4449         smp_mb();
4450
4451         if (unlikely(netif_tx_queue_stopped(txq) &&
4452                      (tg3_tx_avail(tnapi) > TG3_TX_WAKEUP_THRESH(tnapi)))) {
4453                 __netif_tx_lock(txq, smp_processor_id());
4454                 if (netif_tx_queue_stopped(txq) &&
4455                     (tg3_tx_avail(tnapi) > TG3_TX_WAKEUP_THRESH(tnapi)))
4456                         netif_tx_wake_queue(txq);
4457                 __netif_tx_unlock(txq);
4458         }
4459 }
4460
4461 static void tg3_rx_skb_free(struct tg3 *tp, struct ring_info *ri, u32 map_sz)
4462 {
4463         if (!ri->skb)
4464                 return;
4465
4466         pci_unmap_single(tp->pdev, dma_unmap_addr(ri, mapping),
4467                          map_sz, PCI_DMA_FROMDEVICE);
4468         dev_kfree_skb_any(ri->skb);
4469         ri->skb = NULL;
4470 }
4471
4472 /* Returns size of skb allocated or < 0 on error.
4473  *
4474  * We only need to fill in the address because the other members
4475  * of the RX descriptor are invariant, see tg3_init_rings.
4476  *
4477  * Note the purposeful assymetry of cpu vs. chip accesses.  For
4478  * posting buffers we only dirty the first cache line of the RX
4479  * descriptor (containing the address).  Whereas for the RX status
4480  * buffers the cpu only reads the last cacheline of the RX descriptor
4481  * (to fetch the error flags, vlan tag, checksum, and opaque cookie).
4482  */
4483 static int tg3_alloc_rx_skb(struct tg3 *tp, struct tg3_rx_prodring_set *tpr,
4484                             u32 opaque_key, u32 dest_idx_unmasked)
4485 {
4486         struct tg3_rx_buffer_desc *desc;
4487         struct ring_info *map, *src_map;
4488         struct sk_buff *skb;
4489         dma_addr_t mapping;
4490         int skb_size, dest_idx;
4491
4492         src_map = NULL;
4493         switch (opaque_key) {
4494         case RXD_OPAQUE_RING_STD:
4495                 dest_idx = dest_idx_unmasked % TG3_RX_RING_SIZE;
4496                 desc = &tpr->rx_std[dest_idx];
4497                 map = &tpr->rx_std_buffers[dest_idx];
4498                 skb_size = tp->rx_pkt_map_sz;
4499                 break;
4500
4501         case RXD_OPAQUE_RING_JUMBO:
4502                 dest_idx = dest_idx_unmasked % TG3_RX_JUMBO_RING_SIZE;
4503                 desc = &tpr->rx_jmb[dest_idx].std;
4504                 map = &tpr->rx_jmb_buffers[dest_idx];
4505                 skb_size = TG3_RX_JMB_MAP_SZ;
4506                 break;
4507
4508         default:
4509                 return -EINVAL;
4510         }
4511
4512         /* Do not overwrite any of the map or rp information
4513          * until we are sure we can commit to a new buffer.
4514          *
4515          * Callers depend upon this behavior and assume that
4516          * we leave everything unchanged if we fail.
4517          */
4518         skb = netdev_alloc_skb(tp->dev, skb_size + tp->rx_offset);
4519         if (skb == NULL)
4520                 return -ENOMEM;
4521
4522         skb_reserve(skb, tp->rx_offset);
4523
4524         mapping = pci_map_single(tp->pdev, skb->data, skb_size,
4525                                  PCI_DMA_FROMDEVICE);
4526         if (pci_dma_mapping_error(tp->pdev, mapping)) {
4527                 dev_kfree_skb(skb);
4528                 return -EIO;
4529         }
4530
4531         map->skb = skb;
4532         dma_unmap_addr_set(map, mapping, mapping);
4533
4534         desc->addr_hi = ((u64)mapping >> 32);
4535         desc->addr_lo = ((u64)mapping & 0xffffffff);
4536
4537         return skb_size;
4538 }
4539
4540 /* We only need to move over in the address because the other
4541  * members of the RX descriptor are invariant.  See notes above
4542  * tg3_alloc_rx_skb for full details.
4543  */
4544 static void tg3_recycle_rx(struct tg3_napi *tnapi,
4545                            struct tg3_rx_prodring_set *dpr,
4546                            u32 opaque_key, int src_idx,
4547                            u32 dest_idx_unmasked)
4548 {
4549         struct tg3 *tp = tnapi->tp;
4550         struct tg3_rx_buffer_desc *src_desc, *dest_desc;
4551         struct ring_info *src_map, *dest_map;
4552         struct tg3_rx_prodring_set *spr = &tp->prodring[0];
4553         int dest_idx;
4554
4555         switch (opaque_key) {
4556         case RXD_OPAQUE_RING_STD:
4557                 dest_idx = dest_idx_unmasked % TG3_RX_RING_SIZE;
4558                 dest_desc = &dpr->rx_std[dest_idx];
4559                 dest_map = &dpr->rx_std_buffers[dest_idx];
4560                 src_desc = &spr->rx_std[src_idx];
4561                 src_map = &spr->rx_std_buffers[src_idx];
4562                 break;
4563
4564         case RXD_OPAQUE_RING_JUMBO:
4565                 dest_idx = dest_idx_unmasked % TG3_RX_JUMBO_RING_SIZE;
4566                 dest_desc = &dpr->rx_jmb[dest_idx].std;
4567                 dest_map = &dpr->rx_jmb_buffers[dest_idx];
4568                 src_desc = &spr->rx_jmb[src_idx].std;
4569                 src_map = &spr->rx_jmb_buffers[src_idx];
4570                 break;
4571
4572         default:
4573                 return;
4574         }
4575
4576         dest_map->skb = src_map->skb;
4577         dma_unmap_addr_set(dest_map, mapping,
4578                            dma_unmap_addr(src_map, mapping));
4579         dest_desc->addr_hi = src_desc->addr_hi;
4580         dest_desc->addr_lo = src_desc->addr_lo;
4581
4582         /* Ensure that the update to the skb happens after the physical
4583          * addresses have been transferred to the new BD location.
4584          */
4585         smp_wmb();
4586
4587         src_map->skb = NULL;
4588 }
4589
4590 /* The RX ring scheme is composed of multiple rings which post fresh
4591  * buffers to the chip, and one special ring the chip uses to report
4592  * status back to the host.
4593  *
4594  * The special ring reports the status of received packets to the
4595  * host.  The chip does not write into the original descriptor the
4596  * RX buffer was obtained from.  The chip simply takes the original
4597  * descriptor as provided by the host, updates the status and length
4598  * field, then writes this into the next status ring entry.
4599  *
4600  * Each ring the host uses to post buffers to the chip is described
4601  * by a TG3_BDINFO entry in the chips SRAM area.  When a packet arrives,
4602  * it is first placed into the on-chip ram.  When the packet's length
4603  * is known, it walks down the TG3_BDINFO entries to select the ring.
4604  * Each TG3_BDINFO specifies a MAXLEN field and the first TG3_BDINFO
4605  * which is within the range of the new packet's length is chosen.
4606  *
4607  * The "separate ring for rx status" scheme may sound queer, but it makes
4608  * sense from a cache coherency perspective.  If only the host writes
4609  * to the buffer post rings, and only the chip writes to the rx status
4610  * rings, then cache lines never move beyond shared-modified state.
4611  * If both the host and chip were to write into the same ring, cache line
4612  * eviction could occur since both entities want it in an exclusive state.
4613  */
4614 static int tg3_rx(struct tg3_napi *tnapi, int budget)
4615 {
4616         struct tg3 *tp = tnapi->tp;
4617         u32 work_mask, rx_std_posted = 0;
4618         u32 std_prod_idx, jmb_prod_idx;
4619         u32 sw_idx = tnapi->rx_rcb_ptr;
4620         u16 hw_idx;
4621         int received;
4622         struct tg3_rx_prodring_set *tpr = tnapi->prodring;
4623
4624         hw_idx = *(tnapi->rx_rcb_prod_idx);
4625         /*
4626          * We need to order the read of hw_idx and the read of
4627          * the opaque cookie.
4628          */
4629         rmb();
4630         work_mask = 0;
4631         received = 0;
4632         std_prod_idx = tpr->rx_std_prod_idx;
4633         jmb_prod_idx = tpr->rx_jmb_prod_idx;
4634         while (sw_idx != hw_idx && budget > 0) {
4635                 struct ring_info *ri;
4636                 struct tg3_rx_buffer_desc *desc = &tnapi->rx_rcb[sw_idx];
4637                 unsigned int len;
4638                 struct sk_buff *skb;
4639                 dma_addr_t dma_addr;
4640                 u32 opaque_key, desc_idx, *post_ptr;
4641                 bool hw_vlan __maybe_unused = false;
4642                 u16 vtag __maybe_unused = 0;
4643
4644                 desc_idx = desc->opaque & RXD_OPAQUE_INDEX_MASK;
4645                 opaque_key = desc->opaque & RXD_OPAQUE_RING_MASK;
4646                 if (opaque_key == RXD_OPAQUE_RING_STD) {
4647                         ri = &tp->prodring[0].rx_std_buffers[desc_idx];
4648                         dma_addr = dma_unmap_addr(ri, mapping);
4649                         skb = ri->skb;
4650                         post_ptr = &std_prod_idx;
4651                         rx_std_posted++;
4652                 } else if (opaque_key == RXD_OPAQUE_RING_JUMBO) {
4653                         ri = &tp->prodring[0].rx_jmb_buffers[desc_idx];
4654                         dma_addr = dma_unmap_addr(ri, mapping);
4655                         skb = ri->skb;
4656                         post_ptr = &jmb_prod_idx;
4657                 } else
4658                         goto next_pkt_nopost;
4659
4660                 work_mask |= opaque_key;
4661
4662                 if ((desc->err_vlan & RXD_ERR_MASK) != 0 &&
4663                     (desc->err_vlan != RXD_ERR_ODD_NIBBLE_RCVD_MII)) {
4664                 drop_it:
4665                         tg3_recycle_rx(tnapi, tpr, opaque_key,
4666                                        desc_idx, *post_ptr);
4667                 drop_it_no_recycle:
4668                         /* Other statistics kept track of by card. */
4669                         tp->net_stats.rx_dropped++;
4670                         goto next_pkt;
4671                 }
4672
4673                 len = ((desc->idx_len & RXD_LEN_MASK) >> RXD_LEN_SHIFT) -
4674                       ETH_FCS_LEN;
4675
4676                 if (len > TG3_RX_COPY_THRESH(tp)) {
4677                         int skb_size;
4678
4679                         skb_size = tg3_alloc_rx_skb(tp, tpr, opaque_key,
4680                                                     *post_ptr);
4681                         if (skb_size < 0)
4682                                 goto drop_it;
4683
4684                         pci_unmap_single(tp->pdev, dma_addr, skb_size,
4685                                          PCI_DMA_FROMDEVICE);
4686
4687                         /* Ensure that the update to the skb happens
4688                          * after the usage of the old DMA mapping.
4689                          */
4690                         smp_wmb();
4691
4692                         ri->skb = NULL;
4693
4694                         skb_put(skb, len);
4695                 } else {
4696                         struct sk_buff *copy_skb;
4697
4698                         tg3_recycle_rx(tnapi, tpr, opaque_key,
4699                                        desc_idx, *post_ptr);
4700
4701                         copy_skb = netdev_alloc_skb(tp->dev, len + VLAN_HLEN +
4702                                                     TG3_RAW_IP_ALIGN);
4703                         if (copy_skb == NULL)
4704                                 goto drop_it_no_recycle;
4705
4706                         skb_reserve(copy_skb, TG3_RAW_IP_ALIGN + VLAN_HLEN);
4707                         skb_put(copy_skb, len);
4708                         pci_dma_sync_single_for_cpu(tp->pdev, dma_addr, len, PCI_DMA_FROMDEVICE);
4709                         skb_copy_from_linear_data(skb, copy_skb->data, len);
4710                         pci_dma_sync_single_for_device(tp->pdev, dma_addr, len, PCI_DMA_FROMDEVICE);
4711
4712                         /* We'll reuse the original ring buffer. */
4713                         skb = copy_skb;
4714                 }
4715
4716                 if ((tp->tg3_flags & TG3_FLAG_RX_CHECKSUMS) &&
4717                     (desc->type_flags & RXD_FLAG_TCPUDP_CSUM) &&
4718                     (((desc->ip_tcp_csum & RXD_TCPCSUM_MASK)
4719                       >> RXD_TCPCSUM_SHIFT) == 0xffff))
4720                         skb->ip_summed = CHECKSUM_UNNECESSARY;
4721                 else
4722                         skb_checksum_none_assert(skb);
4723
4724                 skb->protocol = eth_type_trans(skb, tp->dev);
4725
4726                 if (len > (tp->dev->mtu + ETH_HLEN) &&
4727                     skb->protocol != htons(ETH_P_8021Q)) {
4728                         dev_kfree_skb(skb);
4729                         goto next_pkt;
4730                 }
4731
4732                 if (desc->type_flags & RXD_FLAG_VLAN &&
4733                     !(tp->rx_mode & RX_MODE_KEEP_VLAN_TAG)) {
4734                         vtag = desc->err_vlan & RXD_VLAN_MASK;
4735 #if TG3_VLAN_TAG_USED
4736                         if (tp->vlgrp)
4737                                 hw_vlan = true;
4738                         else
4739 #endif
4740                         {
4741                                 struct vlan_ethhdr *ve = (struct vlan_ethhdr *)
4742                                                     __skb_push(skb, VLAN_HLEN);
4743
4744                                 memmove(ve, skb->data + VLAN_HLEN,
4745                                         ETH_ALEN * 2);
4746                                 ve->h_vlan_proto = htons(ETH_P_8021Q);
4747                                 ve->h_vlan_TCI = htons(vtag);
4748                         }
4749                 }
4750
4751 #if TG3_VLAN_TAG_USED
4752                 if (hw_vlan)
4753                         vlan_gro_receive(&tnapi->napi, tp->vlgrp, vtag, skb);
4754                 else
4755 #endif
4756                         napi_gro_receive(&tnapi->napi, skb);
4757
4758                 received++;
4759                 budget--;
4760
4761 next_pkt:
4762                 (*post_ptr)++;
4763
4764                 if (unlikely(rx_std_posted >= tp->rx_std_max_post)) {
4765                         tpr->rx_std_prod_idx = std_prod_idx % TG3_RX_RING_SIZE;
4766                         tw32_rx_mbox(TG3_RX_STD_PROD_IDX_REG,
4767                                      tpr->rx_std_prod_idx);
4768                         work_mask &= ~RXD_OPAQUE_RING_STD;
4769                         rx_std_posted = 0;
4770                 }
4771 next_pkt_nopost:
4772                 sw_idx++;
4773                 sw_idx &= (TG3_RX_RCB_RING_SIZE(tp) - 1);
4774
4775                 /* Refresh hw_idx to see if there is new work */
4776                 if (sw_idx == hw_idx) {
4777                         hw_idx = *(tnapi->rx_rcb_prod_idx);
4778                         rmb();
4779                 }
4780         }
4781
4782         /* ACK the status ring. */
4783         tnapi->rx_rcb_ptr = sw_idx;
4784         tw32_rx_mbox(tnapi->consmbox, sw_idx);
4785
4786         /* Refill RX ring(s). */
4787         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS)) {
4788                 if (work_mask & RXD_OPAQUE_RING_STD) {
4789                         tpr->rx_std_prod_idx = std_prod_idx % TG3_RX_RING_SIZE;
4790                         tw32_rx_mbox(TG3_RX_STD_PROD_IDX_REG,
4791                                      tpr->rx_std_prod_idx);
4792                 }
4793                 if (work_mask & RXD_OPAQUE_RING_JUMBO) {
4794                         tpr->rx_jmb_prod_idx = jmb_prod_idx %
4795                                                TG3_RX_JUMBO_RING_SIZE;
4796                         tw32_rx_mbox(TG3_RX_JMB_PROD_IDX_REG,
4797                                      tpr->rx_jmb_prod_idx);
4798                 }
4799                 mmiowb();
4800         } else if (work_mask) {
4801                 /* rx_std_buffers[] and rx_jmb_buffers[] entries must be
4802                  * updated before the producer indices can be updated.
4803                  */
4804                 smp_wmb();
4805
4806                 tpr->rx_std_prod_idx = std_prod_idx % TG3_RX_RING_SIZE;
4807                 tpr->rx_jmb_prod_idx = jmb_prod_idx % TG3_RX_JUMBO_RING_SIZE;
4808
4809                 if (tnapi != &tp->napi[1])
4810                         napi_schedule(&tp->napi[1].napi);
4811         }
4812
4813         return received;
4814 }
4815
4816 static void tg3_poll_link(struct tg3 *tp)
4817 {
4818         /* handle link change and other phy events */
4819         if (!(tp->tg3_flags &
4820               (TG3_FLAG_USE_LINKCHG_REG |
4821                TG3_FLAG_POLL_SERDES))) {
4822                 struct tg3_hw_status *sblk = tp->napi[0].hw_status;
4823
4824                 if (sblk->status & SD_STATUS_LINK_CHG) {
4825                         sblk->status = SD_STATUS_UPDATED |
4826                                        (sblk->status & ~SD_STATUS_LINK_CHG);
4827                         spin_lock(&tp->lock);
4828                         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
4829                                 tw32_f(MAC_STATUS,
4830                                      (MAC_STATUS_SYNC_CHANGED |
4831                                       MAC_STATUS_CFG_CHANGED |
4832                                       MAC_STATUS_MI_COMPLETION |
4833                                       MAC_STATUS_LNKSTATE_CHANGED));
4834                                 udelay(40);
4835                         } else
4836                                 tg3_setup_phy(tp, 0);
4837                         spin_unlock(&tp->lock);
4838                 }
4839         }
4840 }
4841
4842 static int tg3_rx_prodring_xfer(struct tg3 *tp,
4843                                 struct tg3_rx_prodring_set *dpr,
4844                                 struct tg3_rx_prodring_set *spr)
4845 {
4846         u32 si, di, cpycnt, src_prod_idx;
4847         int i, err = 0;
4848
4849         while (1) {
4850                 src_prod_idx = spr->rx_std_prod_idx;
4851
4852                 /* Make sure updates to the rx_std_buffers[] entries and the
4853                  * standard producer index are seen in the correct order.
4854                  */
4855                 smp_rmb();
4856
4857                 if (spr->rx_std_cons_idx == src_prod_idx)
4858                         break;
4859
4860                 if (spr->rx_std_cons_idx < src_prod_idx)
4861                         cpycnt = src_prod_idx - spr->rx_std_cons_idx;
4862                 else
4863                         cpycnt = TG3_RX_RING_SIZE - spr->rx_std_cons_idx;
4864
4865                 cpycnt = min(cpycnt, TG3_RX_RING_SIZE - dpr->rx_std_prod_idx);
4866
4867                 si = spr->rx_std_cons_idx;
4868                 di = dpr->rx_std_prod_idx;
4869
4870                 for (i = di; i < di + cpycnt; i++) {
4871                         if (dpr->rx_std_buffers[i].skb) {
4872                                 cpycnt = i - di;
4873                                 err = -ENOSPC;
4874                                 break;
4875                         }
4876                 }
4877
4878                 if (!cpycnt)
4879                         break;
4880
4881                 /* Ensure that updates to the rx_std_buffers ring and the
4882                  * shadowed hardware producer ring from tg3_recycle_skb() are
4883                  * ordered correctly WRT the skb check above.
4884                  */
4885                 smp_rmb();
4886
4887                 memcpy(&dpr->rx_std_buffers[di],
4888                        &spr->rx_std_buffers[si],
4889                        cpycnt * sizeof(struct ring_info));
4890
4891                 for (i = 0; i < cpycnt; i++, di++, si++) {
4892                         struct tg3_rx_buffer_desc *sbd, *dbd;
4893                         sbd = &spr->rx_std[si];
4894                         dbd = &dpr->rx_std[di];
4895                         dbd->addr_hi = sbd->addr_hi;
4896                         dbd->addr_lo = sbd->addr_lo;
4897                 }
4898
4899                 spr->rx_std_cons_idx = (spr->rx_std_cons_idx + cpycnt) %
4900                                        TG3_RX_RING_SIZE;
4901                 dpr->rx_std_prod_idx = (dpr->rx_std_prod_idx + cpycnt) %
4902                                        TG3_RX_RING_SIZE;
4903         }
4904
4905         while (1) {
4906                 src_prod_idx = spr->rx_jmb_prod_idx;
4907
4908                 /* Make sure updates to the rx_jmb_buffers[] entries and
4909                  * the jumbo producer index are seen in the correct order.
4910                  */
4911                 smp_rmb();
4912
4913                 if (spr->rx_jmb_cons_idx == src_prod_idx)
4914                         break;
4915
4916                 if (spr->rx_jmb_cons_idx < src_prod_idx)
4917                         cpycnt = src_prod_idx - spr->rx_jmb_cons_idx;
4918                 else
4919                         cpycnt = TG3_RX_JUMBO_RING_SIZE - spr->rx_jmb_cons_idx;
4920
4921                 cpycnt = min(cpycnt,
4922                              TG3_RX_JUMBO_RING_SIZE - dpr->rx_jmb_prod_idx);
4923
4924                 si = spr->rx_jmb_cons_idx;
4925                 di = dpr->rx_jmb_prod_idx;
4926
4927                 for (i = di; i < di + cpycnt; i++) {
4928                         if (dpr->rx_jmb_buffers[i].skb) {
4929                                 cpycnt = i - di;
4930                                 err = -ENOSPC;
4931                                 break;
4932                         }
4933                 }
4934
4935                 if (!cpycnt)
4936                         break;
4937
4938                 /* Ensure that updates to the rx_jmb_buffers ring and the
4939                  * shadowed hardware producer ring from tg3_recycle_skb() are
4940                  * ordered correctly WRT the skb check above.
4941                  */
4942                 smp_rmb();
4943
4944                 memcpy(&dpr->rx_jmb_buffers[di],
4945                        &spr->rx_jmb_buffers[si],
4946                        cpycnt * sizeof(struct ring_info));
4947
4948                 for (i = 0; i < cpycnt; i++, di++, si++) {
4949                         struct tg3_rx_buffer_desc *sbd, *dbd;
4950                         sbd = &spr->rx_jmb[si].std;
4951                         dbd = &dpr->rx_jmb[di].std;
4952                         dbd->addr_hi = sbd->addr_hi;
4953                         dbd->addr_lo = sbd->addr_lo;
4954                 }
4955
4956                 spr->rx_jmb_cons_idx = (spr->rx_jmb_cons_idx + cpycnt) %
4957                                        TG3_RX_JUMBO_RING_SIZE;
4958                 dpr->rx_jmb_prod_idx = (dpr->rx_jmb_prod_idx + cpycnt) %
4959                                        TG3_RX_JUMBO_RING_SIZE;
4960         }
4961
4962         return err;
4963 }
4964
4965 static int tg3_poll_work(struct tg3_napi *tnapi, int work_done, int budget)
4966 {
4967         struct tg3 *tp = tnapi->tp;
4968
4969         /* run TX completion thread */
4970         if (tnapi->hw_status->idx[0].tx_consumer != tnapi->tx_cons) {
4971                 tg3_tx(tnapi);
4972                 if (unlikely(tp->tg3_flags & TG3_FLAG_TX_RECOVERY_PENDING))
4973                         return work_done;
4974         }
4975
4976         /* run RX thread, within the bounds set by NAPI.
4977          * All RX "locking" is done by ensuring outside
4978          * code synchronizes with tg3->napi.poll()
4979          */
4980         if (*(tnapi->rx_rcb_prod_idx) != tnapi->rx_rcb_ptr)
4981                 work_done += tg3_rx(tnapi, budget - work_done);
4982
4983         if ((tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS) && tnapi == &tp->napi[1]) {
4984                 struct tg3_rx_prodring_set *dpr = &tp->prodring[0];
4985                 int i, err = 0;
4986                 u32 std_prod_idx = dpr->rx_std_prod_idx;
4987                 u32 jmb_prod_idx = dpr->rx_jmb_prod_idx;
4988
4989                 for (i = 1; i < tp->irq_cnt; i++)
4990                         err |= tg3_rx_prodring_xfer(tp, dpr,
4991                                                     tp->napi[i].prodring);
4992
4993                 wmb();
4994
4995                 if (std_prod_idx != dpr->rx_std_prod_idx)
4996                         tw32_rx_mbox(TG3_RX_STD_PROD_IDX_REG,
4997                                      dpr->rx_std_prod_idx);
4998
4999                 if (jmb_prod_idx != dpr->rx_jmb_prod_idx)
5000                         tw32_rx_mbox(TG3_RX_JMB_PROD_IDX_REG,
5001                                      dpr->rx_jmb_prod_idx);
5002
5003                 mmiowb();
5004
5005                 if (err)
5006                         tw32_f(HOSTCC_MODE, tp->coal_now);
5007         }
5008
5009         return work_done;
5010 }
5011
5012 static int tg3_poll_msix(struct napi_struct *napi, int budget)
5013 {
5014         struct tg3_napi *tnapi = container_of(napi, struct tg3_napi, napi);
5015         struct tg3 *tp = tnapi->tp;
5016         int work_done = 0;
5017         struct tg3_hw_status *sblk = tnapi->hw_status;
5018
5019         while (1) {
5020                 work_done = tg3_poll_work(tnapi, work_done, budget);
5021
5022                 if (unlikely(tp->tg3_flags & TG3_FLAG_TX_RECOVERY_PENDING))
5023                         goto tx_recovery;
5024
5025                 if (unlikely(work_done >= budget))
5026                         break;
5027
5028                 /* tp->last_tag is used in tg3_int_reenable() below
5029                  * to tell the hw how much work has been processed,
5030                  * so we must read it before checking for more work.
5031                  */
5032                 tnapi->last_tag = sblk->status_tag;
5033                 tnapi->last_irq_tag = tnapi->last_tag;
5034                 rmb();
5035
5036                 /* check for RX/TX work to do */
5037                 if (likely(sblk->idx[0].tx_consumer == tnapi->tx_cons &&
5038                            *(tnapi->rx_rcb_prod_idx) == tnapi->rx_rcb_ptr)) {
5039                         napi_complete(napi);
5040                         /* Reenable interrupts. */
5041                         tw32_mailbox(tnapi->int_mbox, tnapi->last_tag << 24);
5042                         mmiowb();
5043                         break;
5044                 }
5045         }
5046
5047         return work_done;
5048
5049 tx_recovery:
5050         /* work_done is guaranteed to be less than budget. */
5051         napi_complete(napi);
5052         schedule_work(&tp->reset_task);
5053         return work_done;
5054 }
5055
5056 static int tg3_poll(struct napi_struct *napi, int budget)
5057 {
5058         struct tg3_napi *tnapi = container_of(napi, struct tg3_napi, napi);
5059         struct tg3 *tp = tnapi->tp;
5060         int work_done = 0;
5061         struct tg3_hw_status *sblk = tnapi->hw_status;
5062
5063         while (1) {
5064                 tg3_poll_link(tp);
5065
5066                 work_done = tg3_poll_work(tnapi, work_done, budget);
5067
5068                 if (unlikely(tp->tg3_flags & TG3_FLAG_TX_RECOVERY_PENDING))
5069                         goto tx_recovery;
5070
5071                 if (unlikely(work_done >= budget))
5072                         break;
5073
5074                 if (tp->tg3_flags & TG3_FLAG_TAGGED_STATUS) {
5075                         /* tp->last_tag is used in tg3_int_reenable() below
5076                          * to tell the hw how much work has been processed,
5077                          * so we must read it before checking for more work.
5078                          */
5079                         tnapi->last_tag = sblk->status_tag;
5080                         tnapi->last_irq_tag = tnapi->last_tag;
5081                         rmb();
5082                 } else
5083                         sblk->status &= ~SD_STATUS_UPDATED;
5084
5085                 if (likely(!tg3_has_work(tnapi))) {
5086                         napi_complete(napi);
5087                         tg3_int_reenable(tnapi);
5088                         break;
5089                 }
5090         }
5091
5092         return work_done;
5093
5094 tx_recovery:
5095         /* work_done is guaranteed to be less than budget. */
5096         napi_complete(napi);
5097         schedule_work(&tp->reset_task);
5098         return work_done;
5099 }
5100
5101 static void tg3_irq_quiesce(struct tg3 *tp)
5102 {
5103         int i;
5104
5105         BUG_ON(tp->irq_sync);
5106
5107         tp->irq_sync = 1;
5108         smp_mb();
5109
5110         for (i = 0; i < tp->irq_cnt; i++)
5111                 synchronize_irq(tp->napi[i].irq_vec);
5112 }
5113
5114 static inline int tg3_irq_sync(struct tg3 *tp)
5115 {
5116         return tp->irq_sync;
5117 }
5118
5119 /* Fully shutdown all tg3 driver activity elsewhere in the system.
5120  * If irq_sync is non-zero, then the IRQ handler must be synchronized
5121  * with as well.  Most of the time, this is not necessary except when
5122  * shutting down the device.
5123  */
5124 static inline void tg3_full_lock(struct tg3 *tp, int irq_sync)
5125 {
5126         spin_lock_bh(&tp->lock);
5127         if (irq_sync)
5128                 tg3_irq_quiesce(tp);
5129 }
5130
5131 static inline void tg3_full_unlock(struct tg3 *tp)
5132 {
5133         spin_unlock_bh(&tp->lock);
5134 }
5135
5136 /* One-shot MSI handler - Chip automatically disables interrupt
5137  * after sending MSI so driver doesn't have to do it.
5138  */
5139 static irqreturn_t tg3_msi_1shot(int irq, void *dev_id)
5140 {
5141         struct tg3_napi *tnapi = dev_id;
5142         struct tg3 *tp = tnapi->tp;
5143
5144         prefetch(tnapi->hw_status);
5145         if (tnapi->rx_rcb)
5146                 prefetch(&tnapi->rx_rcb[tnapi->rx_rcb_ptr]);
5147
5148         if (likely(!tg3_irq_sync(tp)))
5149                 napi_schedule(&tnapi->napi);
5150
5151         return IRQ_HANDLED;
5152 }
5153
5154 /* MSI ISR - No need to check for interrupt sharing and no need to
5155  * flush status block and interrupt mailbox. PCI ordering rules
5156  * guarantee that MSI will arrive after the status block.
5157  */
5158 static irqreturn_t tg3_msi(int irq, void *dev_id)
5159 {
5160         struct tg3_napi *tnapi = dev_id;
5161         struct tg3 *tp = tnapi->tp;
5162
5163         prefetch(tnapi->hw_status);
5164         if (tnapi->rx_rcb)
5165                 prefetch(&tnapi->rx_rcb[tnapi->rx_rcb_ptr]);
5166         /*
5167          * Writing any value to intr-mbox-0 clears PCI INTA# and
5168          * chip-internal interrupt pending events.
5169          * Writing non-zero to intr-mbox-0 additional tells the
5170          * NIC to stop sending us irqs, engaging "in-intr-handler"
5171          * event coalescing.
5172          */
5173         tw32_mailbox(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
5174         if (likely(!tg3_irq_sync(tp)))
5175                 napi_schedule(&tnapi->napi);
5176
5177         return IRQ_RETVAL(1);
5178 }
5179
5180 static irqreturn_t tg3_interrupt(int irq, void *dev_id)
5181 {
5182         struct tg3_napi *tnapi = dev_id;
5183         struct tg3 *tp = tnapi->tp;
5184         struct tg3_hw_status *sblk = tnapi->hw_status;
5185         unsigned int handled = 1;
5186
5187         /* In INTx mode, it is possible for the interrupt to arrive at
5188          * the CPU before the status block posted prior to the interrupt.
5189          * Reading the PCI State register will confirm whether the
5190          * interrupt is ours and will flush the status block.
5191          */
5192         if (unlikely(!(sblk->status & SD_STATUS_UPDATED))) {
5193                 if ((tp->tg3_flags & TG3_FLAG_CHIP_RESETTING) ||
5194                     (tr32(TG3PCI_PCISTATE) & PCISTATE_INT_NOT_ACTIVE)) {
5195                         handled = 0;
5196                         goto out;
5197                 }
5198         }
5199
5200         /*
5201          * Writing any value to intr-mbox-0 clears PCI INTA# and
5202          * chip-internal interrupt pending events.
5203          * Writing non-zero to intr-mbox-0 additional tells the
5204          * NIC to stop sending us irqs, engaging "in-intr-handler"
5205          * event coalescing.
5206          *
5207          * Flush the mailbox to de-assert the IRQ immediately to prevent
5208          * spurious interrupts.  The flush impacts performance but
5209          * excessive spurious interrupts can be worse in some cases.
5210          */
5211         tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
5212         if (tg3_irq_sync(tp))
5213                 goto out;
5214         sblk->status &= ~SD_STATUS_UPDATED;
5215         if (likely(tg3_has_work(tnapi))) {
5216                 prefetch(&tnapi->rx_rcb[tnapi->rx_rcb_ptr]);
5217                 napi_schedule(&tnapi->napi);
5218         } else {
5219                 /* No work, shared interrupt perhaps?  re-enable
5220                  * interrupts, and flush that PCI write
5221                  */
5222                 tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW,
5223                                0x00000000);
5224         }
5225 out:
5226         return IRQ_RETVAL(handled);
5227 }
5228
5229 static irqreturn_t tg3_interrupt_tagged(int irq, void *dev_id)
5230 {
5231         struct tg3_napi *tnapi = dev_id;
5232         struct tg3 *tp = tnapi->tp;
5233         struct tg3_hw_status *sblk = tnapi->hw_status;
5234         unsigned int handled = 1;
5235
5236         /* In INTx mode, it is possible for the interrupt to arrive at
5237          * the CPU before the status block posted prior to the interrupt.
5238          * Reading the PCI State register will confirm whether the
5239          * interrupt is ours and will flush the status block.
5240          */
5241         if (unlikely(sblk->status_tag == tnapi->last_irq_tag)) {
5242                 if ((tp->tg3_flags & TG3_FLAG_CHIP_RESETTING) ||
5243                     (tr32(TG3PCI_PCISTATE) & PCISTATE_INT_NOT_ACTIVE)) {
5244                         handled = 0;
5245                         goto out;
5246                 }
5247         }
5248
5249         /*
5250          * writing any value to intr-mbox-0 clears PCI INTA# and
5251          * chip-internal interrupt pending events.
5252          * writing non-zero to intr-mbox-0 additional tells the
5253          * NIC to stop sending us irqs, engaging "in-intr-handler"
5254          * event coalescing.
5255          *
5256          * Flush the mailbox to de-assert the IRQ immediately to prevent
5257          * spurious interrupts.  The flush impacts performance but
5258          * excessive spurious interrupts can be worse in some cases.
5259          */
5260         tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
5261
5262         /*
5263          * In a shared interrupt configuration, sometimes other devices'
5264          * interrupts will scream.  We record the current status tag here
5265          * so that the above check can report that the screaming interrupts
5266          * are unhandled.  Eventually they will be silenced.
5267          */
5268         tnapi->last_irq_tag = sblk->status_tag;
5269
5270         if (tg3_irq_sync(tp))
5271                 goto out;
5272
5273         prefetch(&tnapi->rx_rcb[tnapi->rx_rcb_ptr]);
5274
5275         napi_schedule(&tnapi->napi);
5276
5277 out:
5278         return IRQ_RETVAL(handled);
5279 }
5280
5281 /* ISR for interrupt test */
5282 static irqreturn_t tg3_test_isr(int irq, void *dev_id)
5283 {
5284         struct tg3_napi *tnapi = dev_id;
5285         struct tg3 *tp = tnapi->tp;
5286         struct tg3_hw_status *sblk = tnapi->hw_status;
5287
5288         if ((sblk->status & SD_STATUS_UPDATED) ||
5289             !(tr32(TG3PCI_PCISTATE) & PCISTATE_INT_NOT_ACTIVE)) {
5290                 tg3_disable_ints(tp);
5291                 return IRQ_RETVAL(1);
5292         }
5293         return IRQ_RETVAL(0);
5294 }
5295
5296 static int tg3_init_hw(struct tg3 *, int);
5297 static int tg3_halt(struct tg3 *, int, int);
5298
5299 /* Restart hardware after configuration changes, self-test, etc.
5300  * Invoked with tp->lock held.
5301  */
5302 static int tg3_restart_hw(struct tg3 *tp, int reset_phy)
5303         __releases(tp->lock)
5304         __acquires(tp->lock)
5305 {
5306         int err;
5307
5308         err = tg3_init_hw(tp, reset_phy);
5309         if (err) {
5310                 netdev_err(tp->dev,
5311                            "Failed to re-initialize device, aborting\n");
5312                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
5313                 tg3_full_unlock(tp);
5314                 del_timer_sync(&tp->timer);
5315                 tp->irq_sync = 0;
5316                 tg3_napi_enable(tp);
5317                 dev_close(tp->dev);
5318                 tg3_full_lock(tp, 0);
5319         }
5320         return err;
5321 }
5322
5323 #ifdef CONFIG_NET_POLL_CONTROLLER
5324 static void tg3_poll_controller(struct net_device *dev)
5325 {
5326         int i;
5327         struct tg3 *tp = netdev_priv(dev);
5328
5329         for (i = 0; i < tp->irq_cnt; i++)
5330                 tg3_interrupt(tp->napi[i].irq_vec, &tp->napi[i]);
5331 }
5332 #endif
5333
5334 static void tg3_reset_task(struct work_struct *work)
5335 {
5336         struct tg3 *tp = container_of(work, struct tg3, reset_task);
5337         int err;
5338         unsigned int restart_timer;
5339
5340         tg3_full_lock(tp, 0);
5341
5342         if (!netif_running(tp->dev)) {
5343                 tg3_full_unlock(tp);
5344                 return;
5345         }
5346
5347         tg3_full_unlock(tp);
5348
5349         tg3_phy_stop(tp);
5350
5351         tg3_netif_stop(tp);
5352
5353         tg3_full_lock(tp, 1);
5354
5355         restart_timer = tp->tg3_flags2 & TG3_FLG2_RESTART_TIMER;
5356         tp->tg3_flags2 &= ~TG3_FLG2_RESTART_TIMER;
5357
5358         if (tp->tg3_flags & TG3_FLAG_TX_RECOVERY_PENDING) {
5359                 tp->write32_tx_mbox = tg3_write32_tx_mbox;
5360                 tp->write32_rx_mbox = tg3_write_flush_reg32;
5361                 tp->tg3_flags |= TG3_FLAG_MBOX_WRITE_REORDER;
5362                 tp->tg3_flags &= ~TG3_FLAG_TX_RECOVERY_PENDING;
5363         }
5364
5365         tg3_halt(tp, RESET_KIND_SHUTDOWN, 0);
5366         err = tg3_init_hw(tp, 1);
5367         if (err)
5368                 goto out;
5369
5370         tg3_netif_start(tp);
5371
5372         if (restart_timer)
5373                 mod_timer(&tp->timer, jiffies + 1);
5374
5375 out:
5376         tg3_full_unlock(tp);
5377
5378         if (!err)
5379                 tg3_phy_start(tp);
5380 }
5381
5382 static void tg3_dump_short_state(struct tg3 *tp)
5383 {
5384         netdev_err(tp->dev, "DEBUG: MAC_TX_STATUS[%08x] MAC_RX_STATUS[%08x]\n",
5385                    tr32(MAC_TX_STATUS), tr32(MAC_RX_STATUS));
5386         netdev_err(tp->dev, "DEBUG: RDMAC_STATUS[%08x] WDMAC_STATUS[%08x]\n",
5387                    tr32(RDMAC_STATUS), tr32(WDMAC_STATUS));
5388 }
5389
5390 static void tg3_tx_timeout(struct net_device *dev)
5391 {
5392         struct tg3 *tp = netdev_priv(dev);
5393
5394         if (netif_msg_tx_err(tp)) {
5395                 netdev_err(dev, "transmit timed out, resetting\n");
5396                 tg3_dump_short_state(tp);
5397         }
5398
5399         schedule_work(&tp->reset_task);
5400 }
5401
5402 /* Test for DMA buffers crossing any 4GB boundaries: 4G, 8G, etc */
5403 static inline int tg3_4g_overflow_test(dma_addr_t mapping, int len)
5404 {
5405         u32 base = (u32) mapping & 0xffffffff;
5406
5407         return ((base > 0xffffdcc0) &&
5408                 (base + len + 8 < base));
5409 }
5410
5411 /* Test for DMA addresses > 40-bit */
5412 static inline int tg3_40bit_overflow_test(struct tg3 *tp, dma_addr_t mapping,
5413                                           int len)
5414 {
5415 #if defined(CONFIG_HIGHMEM) && (BITS_PER_LONG == 64)
5416         if (tp->tg3_flags & TG3_FLAG_40BIT_DMA_BUG)
5417                 return (((u64) mapping + len) > DMA_BIT_MASK(40));
5418         return 0;
5419 #else
5420         return 0;
5421 #endif
5422 }
5423
5424 static void tg3_set_txd(struct tg3_napi *, int, dma_addr_t, int, u32, u32);
5425
5426 /* Workaround 4GB and 40-bit hardware DMA bugs. */
5427 static int tigon3_dma_hwbug_workaround(struct tg3_napi *tnapi,
5428                                        struct sk_buff *skb, u32 last_plus_one,
5429                                        u32 *start, u32 base_flags, u32 mss)
5430 {
5431         struct tg3 *tp = tnapi->tp;
5432         struct sk_buff *new_skb;
5433         dma_addr_t new_addr = 0;
5434         u32 entry = *start;
5435         int i, ret = 0;
5436
5437         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701)
5438                 new_skb = skb_copy(skb, GFP_ATOMIC);
5439         else {
5440                 int more_headroom = 4 - ((unsigned long)skb->data & 3);
5441
5442                 new_skb = skb_copy_expand(skb,
5443                                           skb_headroom(skb) + more_headroom,
5444                                           skb_tailroom(skb), GFP_ATOMIC);
5445         }
5446
5447         if (!new_skb) {
5448                 ret = -1;
5449         } else {
5450                 /* New SKB is guaranteed to be linear. */
5451                 entry = *start;
5452                 new_addr = pci_map_single(tp->pdev, new_skb->data, new_skb->len,
5453                                           PCI_DMA_TODEVICE);
5454                 /* Make sure the mapping succeeded */
5455                 if (pci_dma_mapping_error(tp->pdev, new_addr)) {
5456                         ret = -1;
5457                         dev_kfree_skb(new_skb);
5458                         new_skb = NULL;
5459
5460                 /* Make sure new skb does not cross any 4G boundaries.
5461                  * Drop the packet if it does.
5462                  */
5463                 } else if ((tp->tg3_flags3 & TG3_FLG3_4G_DMA_BNDRY_BUG) &&
5464                             tg3_4g_overflow_test(new_addr, new_skb->len)) {
5465                         pci_unmap_single(tp->pdev, new_addr, new_skb->len,
5466                                          PCI_DMA_TODEVICE);
5467                         ret = -1;
5468                         dev_kfree_skb(new_skb);
5469                         new_skb = NULL;
5470                 } else {
5471                         tg3_set_txd(tnapi, entry, new_addr, new_skb->len,
5472                                     base_flags, 1 | (mss << 1));
5473                         *start = NEXT_TX(entry);
5474                 }
5475         }
5476
5477         /* Now clean up the sw ring entries. */
5478         i = 0;
5479         while (entry != last_plus_one) {
5480                 int len;
5481
5482                 if (i == 0)
5483                         len = skb_headlen(skb);
5484                 else
5485                         len = skb_shinfo(skb)->frags[i-1].size;
5486
5487                 pci_unmap_single(tp->pdev,
5488                                  dma_unmap_addr(&tnapi->tx_buffers[entry],
5489                                                 mapping),
5490                                  len, PCI_DMA_TODEVICE);
5491                 if (i == 0) {
5492                         tnapi->tx_buffers[entry].skb = new_skb;
5493                         dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping,
5494                                            new_addr);
5495                 } else {
5496                         tnapi->tx_buffers[entry].skb = NULL;
5497                 }
5498                 entry = NEXT_TX(entry);
5499                 i++;
5500         }
5501
5502         dev_kfree_skb(skb);
5503
5504         return ret;
5505 }
5506
5507 static void tg3_set_txd(struct tg3_napi *tnapi, int entry,
5508                         dma_addr_t mapping, int len, u32 flags,
5509                         u32 mss_and_is_end)
5510 {
5511         struct tg3_tx_buffer_desc *txd = &tnapi->tx_ring[entry];
5512         int is_end = (mss_and_is_end & 0x1);
5513         u32 mss = (mss_and_is_end >> 1);
5514         u32 vlan_tag = 0;
5515
5516         if (is_end)
5517                 flags |= TXD_FLAG_END;
5518         if (flags & TXD_FLAG_VLAN) {
5519                 vlan_tag = flags >> 16;
5520                 flags &= 0xffff;
5521         }
5522         vlan_tag |= (mss << TXD_MSS_SHIFT);
5523
5524         txd->addr_hi = ((u64) mapping >> 32);
5525         txd->addr_lo = ((u64) mapping & 0xffffffff);
5526         txd->len_flags = (len << TXD_LEN_SHIFT) | flags;
5527         txd->vlan_tag = vlan_tag << TXD_VLAN_TAG_SHIFT;
5528 }
5529
5530 /* hard_start_xmit for devices that don't have any bugs and
5531  * support TG3_FLG2_HW_TSO_2 and TG3_FLG2_HW_TSO_3 only.
5532  */
5533 static netdev_tx_t tg3_start_xmit(struct sk_buff *skb,
5534                                   struct net_device *dev)
5535 {
5536         struct tg3 *tp = netdev_priv(dev);
5537         u32 len, entry, base_flags, mss;
5538         dma_addr_t mapping;
5539         struct tg3_napi *tnapi;
5540         struct netdev_queue *txq;
5541         unsigned int i, last;
5542
5543         txq = netdev_get_tx_queue(dev, skb_get_queue_mapping(skb));
5544         tnapi = &tp->napi[skb_get_queue_mapping(skb)];
5545         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
5546                 tnapi++;
5547
5548         /* We are running in BH disabled context with netif_tx_lock
5549          * and TX reclaim runs via tp->napi.poll inside of a software
5550          * interrupt.  Furthermore, IRQ processing runs lockless so we have
5551          * no IRQ context deadlocks to worry about either.  Rejoice!
5552          */
5553         if (unlikely(tg3_tx_avail(tnapi) <= (skb_shinfo(skb)->nr_frags + 1))) {
5554                 if (!netif_tx_queue_stopped(txq)) {
5555                         netif_tx_stop_queue(txq);
5556
5557                         /* This is a hard error, log it. */
5558                         netdev_err(dev,
5559                                    "BUG! Tx Ring full when queue awake!\n");
5560                 }
5561                 return NETDEV_TX_BUSY;
5562         }
5563
5564         entry = tnapi->tx_prod;
5565         base_flags = 0;
5566         mss = skb_shinfo(skb)->gso_size;
5567         if (mss) {
5568                 int tcp_opt_len, ip_tcp_len;
5569                 u32 hdrlen;
5570
5571                 if (skb_header_cloned(skb) &&
5572                     pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) {
5573                         dev_kfree_skb(skb);
5574                         goto out_unlock;
5575                 }
5576
5577                 if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6)
5578                         hdrlen = skb_headlen(skb) - ETH_HLEN;
5579                 else {
5580                         struct iphdr *iph = ip_hdr(skb);
5581
5582                         tcp_opt_len = tcp_optlen(skb);
5583                         ip_tcp_len = ip_hdrlen(skb) + sizeof(struct tcphdr);
5584
5585                         iph->check = 0;
5586                         iph->tot_len = htons(mss + ip_tcp_len + tcp_opt_len);
5587                         hdrlen = ip_tcp_len + tcp_opt_len;
5588                 }
5589
5590                 if (tp->tg3_flags2 & TG3_FLG2_HW_TSO_3) {
5591                         mss |= (hdrlen & 0xc) << 12;
5592                         if (hdrlen & 0x10)
5593                                 base_flags |= 0x00000010;
5594                         base_flags |= (hdrlen & 0x3e0) << 5;
5595                 } else
5596                         mss |= hdrlen << 9;
5597
5598                 base_flags |= (TXD_FLAG_CPU_PRE_DMA |
5599                                TXD_FLAG_CPU_POST_DMA);
5600
5601                 tcp_hdr(skb)->check = 0;
5602
5603         } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
5604                 base_flags |= TXD_FLAG_TCPUDP_CSUM;
5605         }
5606
5607 #if TG3_VLAN_TAG_USED
5608         if (tp->vlgrp != NULL && vlan_tx_tag_present(skb))
5609                 base_flags |= (TXD_FLAG_VLAN |
5610                                (vlan_tx_tag_get(skb) << 16));
5611 #endif
5612
5613         len = skb_headlen(skb);
5614
5615         /* Queue skb data, a.k.a. the main skb fragment. */
5616         mapping = pci_map_single(tp->pdev, skb->data, len, PCI_DMA_TODEVICE);
5617         if (pci_dma_mapping_error(tp->pdev, mapping)) {
5618                 dev_kfree_skb(skb);
5619                 goto out_unlock;
5620         }
5621
5622         tnapi->tx_buffers[entry].skb = skb;
5623         dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping, mapping);
5624
5625         if ((tp->tg3_flags3 & TG3_FLG3_USE_JUMBO_BDFLAG) &&
5626             !mss && skb->len > ETH_DATA_LEN)
5627                 base_flags |= TXD_FLAG_JMB_PKT;
5628
5629         tg3_set_txd(tnapi, entry, mapping, len, base_flags,
5630                     (skb_shinfo(skb)->nr_frags == 0) | (mss << 1));
5631
5632         entry = NEXT_TX(entry);
5633
5634         /* Now loop through additional data fragments, and queue them. */
5635         if (skb_shinfo(skb)->nr_frags > 0) {
5636                 last = skb_shinfo(skb)->nr_frags - 1;
5637                 for (i = 0; i <= last; i++) {
5638                         skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
5639
5640                         len = frag->size;
5641                         mapping = pci_map_page(tp->pdev,
5642                                                frag->page,
5643                                                frag->page_offset,
5644                                                len, PCI_DMA_TODEVICE);
5645                         if (pci_dma_mapping_error(tp->pdev, mapping))
5646                                 goto dma_error;
5647
5648                         tnapi->tx_buffers[entry].skb = NULL;
5649                         dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping,
5650                                            mapping);
5651
5652                         tg3_set_txd(tnapi, entry, mapping, len,
5653                                     base_flags, (i == last) | (mss << 1));
5654
5655                         entry = NEXT_TX(entry);
5656                 }
5657         }
5658
5659         /* Packets are ready, update Tx producer idx local and on card. */
5660         tw32_tx_mbox(tnapi->prodmbox, entry);
5661
5662         tnapi->tx_prod = entry;
5663         if (unlikely(tg3_tx_avail(tnapi) <= (MAX_SKB_FRAGS + 1))) {
5664                 netif_tx_stop_queue(txq);
5665
5666                 /* netif_tx_stop_queue() must be done before checking
5667                  * checking tx index in tg3_tx_avail() below, because in
5668                  * tg3_tx(), we update tx index before checking for
5669                  * netif_tx_queue_stopped().
5670                  */
5671                 smp_mb();
5672                 if (tg3_tx_avail(tnapi) > TG3_TX_WAKEUP_THRESH(tnapi))
5673                         netif_tx_wake_queue(txq);
5674         }
5675
5676 out_unlock:
5677         mmiowb();
5678
5679         return NETDEV_TX_OK;
5680
5681 dma_error:
5682         last = i;
5683         entry = tnapi->tx_prod;
5684         tnapi->tx_buffers[entry].skb = NULL;
5685         pci_unmap_single(tp->pdev,
5686                          dma_unmap_addr(&tnapi->tx_buffers[entry], mapping),
5687                          skb_headlen(skb),
5688                          PCI_DMA_TODEVICE);
5689         for (i = 0; i <= last; i++) {
5690                 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
5691                 entry = NEXT_TX(entry);
5692
5693                 pci_unmap_page(tp->pdev,
5694                                dma_unmap_addr(&tnapi->tx_buffers[entry],
5695                                               mapping),
5696                                frag->size, PCI_DMA_TODEVICE);
5697         }
5698
5699         dev_kfree_skb(skb);
5700         return NETDEV_TX_OK;
5701 }
5702
5703 static netdev_tx_t tg3_start_xmit_dma_bug(struct sk_buff *,
5704                                           struct net_device *);
5705
5706 /* Use GSO to workaround a rare TSO bug that may be triggered when the
5707  * TSO header is greater than 80 bytes.
5708  */
5709 static int tg3_tso_bug(struct tg3 *tp, struct sk_buff *skb)
5710 {
5711         struct sk_buff *segs, *nskb;
5712         u32 frag_cnt_est = skb_shinfo(skb)->gso_segs * 3;
5713
5714         /* Estimate the number of fragments in the worst case */
5715         if (unlikely(tg3_tx_avail(&tp->napi[0]) <= frag_cnt_est)) {
5716                 netif_stop_queue(tp->dev);
5717
5718                 /* netif_tx_stop_queue() must be done before checking
5719                  * checking tx index in tg3_tx_avail() below, because in
5720                  * tg3_tx(), we update tx index before checking for
5721                  * netif_tx_queue_stopped().
5722                  */
5723                 smp_mb();
5724                 if (tg3_tx_avail(&tp->napi[0]) <= frag_cnt_est)
5725                         return NETDEV_TX_BUSY;
5726
5727                 netif_wake_queue(tp->dev);
5728         }
5729
5730         segs = skb_gso_segment(skb, tp->dev->features & ~NETIF_F_TSO);
5731         if (IS_ERR(segs))
5732                 goto tg3_tso_bug_end;
5733
5734         do {
5735                 nskb = segs;
5736                 segs = segs->next;
5737                 nskb->next = NULL;
5738                 tg3_start_xmit_dma_bug(nskb, tp->dev);
5739         } while (segs);
5740
5741 tg3_tso_bug_end:
5742         dev_kfree_skb(skb);
5743
5744         return NETDEV_TX_OK;
5745 }
5746
5747 /* hard_start_xmit for devices that have the 4G bug and/or 40-bit bug and
5748  * support TG3_FLG2_HW_TSO_1 or firmware TSO only.
5749  */
5750 static netdev_tx_t tg3_start_xmit_dma_bug(struct sk_buff *skb,
5751                                           struct net_device *dev)
5752 {
5753         struct tg3 *tp = netdev_priv(dev);
5754         u32 len, entry, base_flags, mss;
5755         int would_hit_hwbug;
5756         dma_addr_t mapping;
5757         struct tg3_napi *tnapi;
5758         struct netdev_queue *txq;
5759         unsigned int i, last;
5760
5761         txq = netdev_get_tx_queue(dev, skb_get_queue_mapping(skb));
5762         tnapi = &tp->napi[skb_get_queue_mapping(skb)];
5763         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
5764                 tnapi++;
5765
5766         /* We are running in BH disabled context with netif_tx_lock
5767          * and TX reclaim runs via tp->napi.poll inside of a software
5768          * interrupt.  Furthermore, IRQ processing runs lockless so we have
5769          * no IRQ context deadlocks to worry about either.  Rejoice!
5770          */
5771         if (unlikely(tg3_tx_avail(tnapi) <= (skb_shinfo(skb)->nr_frags + 1))) {
5772                 if (!netif_tx_queue_stopped(txq)) {
5773                         netif_tx_stop_queue(txq);
5774
5775                         /* This is a hard error, log it. */
5776                         netdev_err(dev,
5777                                    "BUG! Tx Ring full when queue awake!\n");
5778                 }
5779                 return NETDEV_TX_BUSY;
5780         }
5781
5782         entry = tnapi->tx_prod;
5783         base_flags = 0;
5784         if (skb->ip_summed == CHECKSUM_PARTIAL)
5785                 base_flags |= TXD_FLAG_TCPUDP_CSUM;
5786
5787         mss = skb_shinfo(skb)->gso_size;
5788         if (mss) {
5789                 struct iphdr *iph;
5790                 u32 tcp_opt_len, hdr_len;
5791
5792                 if (skb_header_cloned(skb) &&
5793                     pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) {
5794                         dev_kfree_skb(skb);
5795                         goto out_unlock;
5796                 }
5797
5798                 iph = ip_hdr(skb);
5799                 tcp_opt_len = tcp_optlen(skb);
5800
5801                 if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6) {
5802                         hdr_len = skb_headlen(skb) - ETH_HLEN;
5803                 } else {
5804                         u32 ip_tcp_len;
5805
5806                         ip_tcp_len = ip_hdrlen(skb) + sizeof(struct tcphdr);
5807                         hdr_len = ip_tcp_len + tcp_opt_len;
5808
5809                         iph->check = 0;
5810                         iph->tot_len = htons(mss + hdr_len);
5811                 }
5812
5813                 if (unlikely((ETH_HLEN + hdr_len) > 80) &&
5814                              (tp->tg3_flags2 & TG3_FLG2_TSO_BUG))
5815                         return tg3_tso_bug(tp, skb);
5816
5817                 base_flags |= (TXD_FLAG_CPU_PRE_DMA |
5818                                TXD_FLAG_CPU_POST_DMA);
5819
5820                 if (tp->tg3_flags2 & TG3_FLG2_HW_TSO) {
5821                         tcp_hdr(skb)->check = 0;
5822                         base_flags &= ~TXD_FLAG_TCPUDP_CSUM;
5823                 } else
5824                         tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
5825                                                                  iph->daddr, 0,
5826                                                                  IPPROTO_TCP,
5827                                                                  0);
5828
5829                 if (tp->tg3_flags2 & TG3_FLG2_HW_TSO_3) {
5830                         mss |= (hdr_len & 0xc) << 12;
5831                         if (hdr_len & 0x10)
5832                                 base_flags |= 0x00000010;
5833                         base_flags |= (hdr_len & 0x3e0) << 5;
5834                 } else if (tp->tg3_flags2 & TG3_FLG2_HW_TSO_2)
5835                         mss |= hdr_len << 9;
5836                 else if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_1) ||
5837                          GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
5838                         if (tcp_opt_len || iph->ihl > 5) {
5839                                 int tsflags;
5840
5841                                 tsflags = (iph->ihl - 5) + (tcp_opt_len >> 2);
5842                                 mss |= (tsflags << 11);
5843                         }
5844                 } else {
5845                         if (tcp_opt_len || iph->ihl > 5) {
5846                                 int tsflags;
5847
5848                                 tsflags = (iph->ihl - 5) + (tcp_opt_len >> 2);
5849                                 base_flags |= tsflags << 12;
5850                         }
5851                 }
5852         }
5853 #if TG3_VLAN_TAG_USED
5854         if (tp->vlgrp != NULL && vlan_tx_tag_present(skb))
5855                 base_flags |= (TXD_FLAG_VLAN |
5856                                (vlan_tx_tag_get(skb) << 16));
5857 #endif
5858
5859         if ((tp->tg3_flags3 & TG3_FLG3_USE_JUMBO_BDFLAG) &&
5860             !mss && skb->len > ETH_DATA_LEN)
5861                 base_flags |= TXD_FLAG_JMB_PKT;
5862
5863         len = skb_headlen(skb);
5864
5865         mapping = pci_map_single(tp->pdev, skb->data, len, PCI_DMA_TODEVICE);
5866         if (pci_dma_mapping_error(tp->pdev, mapping)) {
5867                 dev_kfree_skb(skb);
5868                 goto out_unlock;
5869         }
5870
5871         tnapi->tx_buffers[entry].skb = skb;
5872         dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping, mapping);
5873
5874         would_hit_hwbug = 0;
5875
5876         if ((tp->tg3_flags3 & TG3_FLG3_SHORT_DMA_BUG) && len <= 8)
5877                 would_hit_hwbug = 1;
5878
5879         if ((tp->tg3_flags3 & TG3_FLG3_4G_DMA_BNDRY_BUG) &&
5880             tg3_4g_overflow_test(mapping, len))
5881                 would_hit_hwbug = 1;
5882
5883         if ((tp->tg3_flags3 & TG3_FLG3_40BIT_DMA_LIMIT_BUG) &&
5884             tg3_40bit_overflow_test(tp, mapping, len))
5885                 would_hit_hwbug = 1;
5886
5887         if (tp->tg3_flags3 & TG3_FLG3_5701_DMA_BUG)
5888                 would_hit_hwbug = 1;
5889
5890         tg3_set_txd(tnapi, entry, mapping, len, base_flags,
5891                     (skb_shinfo(skb)->nr_frags == 0) | (mss << 1));
5892
5893         entry = NEXT_TX(entry);
5894
5895         /* Now loop through additional data fragments, and queue them. */
5896         if (skb_shinfo(skb)->nr_frags > 0) {
5897                 last = skb_shinfo(skb)->nr_frags - 1;
5898                 for (i = 0; i <= last; i++) {
5899                         skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
5900
5901                         len = frag->size;
5902                         mapping = pci_map_page(tp->pdev,
5903                                                frag->page,
5904                                                frag->page_offset,
5905                                                len, PCI_DMA_TODEVICE);
5906
5907                         tnapi->tx_buffers[entry].skb = NULL;
5908                         dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping,
5909                                            mapping);
5910                         if (pci_dma_mapping_error(tp->pdev, mapping))
5911                                 goto dma_error;
5912
5913                         if ((tp->tg3_flags3 & TG3_FLG3_SHORT_DMA_BUG) &&
5914                             len <= 8)
5915                                 would_hit_hwbug = 1;
5916
5917                         if ((tp->tg3_flags3 & TG3_FLG3_4G_DMA_BNDRY_BUG) &&
5918                             tg3_4g_overflow_test(mapping, len))
5919                                 would_hit_hwbug = 1;
5920
5921                         if ((tp->tg3_flags3 & TG3_FLG3_40BIT_DMA_LIMIT_BUG) &&
5922                             tg3_40bit_overflow_test(tp, mapping, len))
5923                                 would_hit_hwbug = 1;
5924
5925                         if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
5926                                 tg3_set_txd(tnapi, entry, mapping, len,
5927                                             base_flags, (i == last)|(mss << 1));
5928                         else
5929                                 tg3_set_txd(tnapi, entry, mapping, len,
5930                                             base_flags, (i == last));
5931
5932                         entry = NEXT_TX(entry);
5933                 }
5934         }
5935
5936         if (would_hit_hwbug) {
5937                 u32 last_plus_one = entry;
5938                 u32 start;
5939
5940                 start = entry - 1 - skb_shinfo(skb)->nr_frags;
5941                 start &= (TG3_TX_RING_SIZE - 1);
5942
5943                 /* If the workaround fails due to memory/mapping
5944                  * failure, silently drop this packet.
5945                  */
5946                 if (tigon3_dma_hwbug_workaround(tnapi, skb, last_plus_one,
5947                                                 &start, base_flags, mss))
5948                         goto out_unlock;
5949
5950                 entry = start;
5951         }
5952
5953         /* Packets are ready, update Tx producer idx local and on card. */
5954         tw32_tx_mbox(tnapi->prodmbox, entry);
5955
5956         tnapi->tx_prod = entry;
5957         if (unlikely(tg3_tx_avail(tnapi) <= (MAX_SKB_FRAGS + 1))) {
5958                 netif_tx_stop_queue(txq);
5959
5960                 /* netif_tx_stop_queue() must be done before checking
5961                  * checking tx index in tg3_tx_avail() below, because in
5962                  * tg3_tx(), we update tx index before checking for
5963                  * netif_tx_queue_stopped().
5964                  */
5965                 smp_mb();
5966                 if (tg3_tx_avail(tnapi) > TG3_TX_WAKEUP_THRESH(tnapi))
5967                         netif_tx_wake_queue(txq);
5968         }
5969
5970 out_unlock:
5971         mmiowb();
5972
5973         return NETDEV_TX_OK;
5974
5975 dma_error:
5976         last = i;
5977         entry = tnapi->tx_prod;
5978         tnapi->tx_buffers[entry].skb = NULL;
5979         pci_unmap_single(tp->pdev,
5980                          dma_unmap_addr(&tnapi->tx_buffers[entry], mapping),
5981                          skb_headlen(skb),
5982                          PCI_DMA_TODEVICE);
5983         for (i = 0; i <= last; i++) {
5984                 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
5985                 entry = NEXT_TX(entry);
5986
5987                 pci_unmap_page(tp->pdev,
5988                                dma_unmap_addr(&tnapi->tx_buffers[entry],
5989                                               mapping),
5990                                frag->size, PCI_DMA_TODEVICE);
5991         }
5992
5993         dev_kfree_skb(skb);
5994         return NETDEV_TX_OK;
5995 }
5996
5997 static inline void tg3_set_mtu(struct net_device *dev, struct tg3 *tp,
5998                                int new_mtu)
5999 {
6000         dev->mtu = new_mtu;
6001
6002         if (new_mtu > ETH_DATA_LEN) {
6003                 if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) {
6004                         tp->tg3_flags2 &= ~TG3_FLG2_TSO_CAPABLE;
6005                         ethtool_op_set_tso(dev, 0);
6006                 } else {
6007                         tp->tg3_flags |= TG3_FLAG_JUMBO_RING_ENABLE;
6008                 }
6009         } else {
6010                 if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)
6011                         tp->tg3_flags2 |= TG3_FLG2_TSO_CAPABLE;
6012                 tp->tg3_flags &= ~TG3_FLAG_JUMBO_RING_ENABLE;
6013         }
6014 }
6015
6016 static int tg3_change_mtu(struct net_device *dev, int new_mtu)
6017 {
6018         struct tg3 *tp = netdev_priv(dev);
6019         int err;
6020
6021         if (new_mtu < TG3_MIN_MTU || new_mtu > TG3_MAX_MTU(tp))
6022                 return -EINVAL;
6023
6024         if (!netif_running(dev)) {
6025                 /* We'll just catch it later when the
6026                  * device is up'd.
6027                  */
6028                 tg3_set_mtu(dev, tp, new_mtu);
6029                 return 0;
6030         }
6031
6032         tg3_phy_stop(tp);
6033
6034         tg3_netif_stop(tp);
6035
6036         tg3_full_lock(tp, 1);
6037
6038         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
6039
6040         tg3_set_mtu(dev, tp, new_mtu);
6041
6042         err = tg3_restart_hw(tp, 0);
6043
6044         if (!err)
6045                 tg3_netif_start(tp);
6046
6047         tg3_full_unlock(tp);
6048
6049         if (!err)
6050                 tg3_phy_start(tp);
6051
6052         return err;
6053 }
6054
6055 static void tg3_rx_prodring_free(struct tg3 *tp,
6056                                  struct tg3_rx_prodring_set *tpr)
6057 {
6058         int i;
6059
6060         if (tpr != &tp->prodring[0]) {
6061                 for (i = tpr->rx_std_cons_idx; i != tpr->rx_std_prod_idx;
6062                      i = (i + 1) % TG3_RX_RING_SIZE)
6063                         tg3_rx_skb_free(tp, &tpr->rx_std_buffers[i],
6064                                         tp->rx_pkt_map_sz);
6065
6066                 if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) {
6067                         for (i = tpr->rx_jmb_cons_idx;
6068                              i != tpr->rx_jmb_prod_idx;
6069                              i = (i + 1) % TG3_RX_JUMBO_RING_SIZE) {
6070                                 tg3_rx_skb_free(tp, &tpr->rx_jmb_buffers[i],
6071                                                 TG3_RX_JMB_MAP_SZ);
6072                         }
6073                 }
6074
6075                 return;
6076         }
6077
6078         for (i = 0; i < TG3_RX_RING_SIZE; i++)
6079                 tg3_rx_skb_free(tp, &tpr->rx_std_buffers[i],
6080                                 tp->rx_pkt_map_sz);
6081
6082         if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) {
6083                 for (i = 0; i < TG3_RX_JUMBO_RING_SIZE; i++)
6084                         tg3_rx_skb_free(tp, &tpr->rx_jmb_buffers[i],
6085                                         TG3_RX_JMB_MAP_SZ);
6086         }
6087 }
6088
6089 /* Initialize rx rings for packet processing.
6090  *
6091  * The chip has been shut down and the driver detached from
6092  * the networking, so no interrupts or new tx packets will
6093  * end up in the driver.  tp->{tx,}lock are held and thus
6094  * we may not sleep.
6095  */
6096 static int tg3_rx_prodring_alloc(struct tg3 *tp,
6097                                  struct tg3_rx_prodring_set *tpr)
6098 {
6099         u32 i, rx_pkt_dma_sz;
6100
6101         tpr->rx_std_cons_idx = 0;
6102         tpr->rx_std_prod_idx = 0;
6103         tpr->rx_jmb_cons_idx = 0;
6104         tpr->rx_jmb_prod_idx = 0;
6105
6106         if (tpr != &tp->prodring[0]) {
6107                 memset(&tpr->rx_std_buffers[0], 0, TG3_RX_STD_BUFF_RING_SIZE);
6108                 if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE)
6109                         memset(&tpr->rx_jmb_buffers[0], 0,
6110                                TG3_RX_JMB_BUFF_RING_SIZE);
6111                 goto done;
6112         }
6113
6114         /* Zero out all descriptors. */
6115         memset(tpr->rx_std, 0, TG3_RX_RING_BYTES);
6116
6117         rx_pkt_dma_sz = TG3_RX_STD_DMA_SZ;
6118         if ((tp->tg3_flags2 & TG3_FLG2_5780_CLASS) &&
6119             tp->dev->mtu > ETH_DATA_LEN)
6120                 rx_pkt_dma_sz = TG3_RX_JMB_DMA_SZ;
6121         tp->rx_pkt_map_sz = TG3_RX_DMA_TO_MAP_SZ(rx_pkt_dma_sz);
6122
6123         /* Initialize invariants of the rings, we only set this
6124          * stuff once.  This works because the card does not
6125          * write into the rx buffer posting rings.
6126          */
6127         for (i = 0; i < TG3_RX_RING_SIZE; i++) {
6128                 struct tg3_rx_buffer_desc *rxd;
6129
6130                 rxd = &tpr->rx_std[i];
6131                 rxd->idx_len = rx_pkt_dma_sz << RXD_LEN_SHIFT;
6132                 rxd->type_flags = (RXD_FLAG_END << RXD_FLAGS_SHIFT);
6133                 rxd->opaque = (RXD_OPAQUE_RING_STD |
6134                                (i << RXD_OPAQUE_INDEX_SHIFT));
6135         }
6136
6137         /* Now allocate fresh SKBs for each rx ring. */
6138         for (i = 0; i < tp->rx_pending; i++) {
6139                 if (tg3_alloc_rx_skb(tp, tpr, RXD_OPAQUE_RING_STD, i) < 0) {
6140                         netdev_warn(tp->dev,
6141                                     "Using a smaller RX standard ring. Only "
6142                                     "%d out of %d buffers were allocated "
6143                                     "successfully\n", i, tp->rx_pending);
6144                         if (i == 0)
6145                                 goto initfail;
6146                         tp->rx_pending = i;
6147                         break;
6148                 }
6149         }
6150
6151         if (!(tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE))
6152                 goto done;
6153
6154         memset(tpr->rx_jmb, 0, TG3_RX_JUMBO_RING_BYTES);
6155
6156         if (!(tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE))
6157                 goto done;
6158
6159         for (i = 0; i < TG3_RX_JUMBO_RING_SIZE; i++) {
6160                 struct tg3_rx_buffer_desc *rxd;
6161
6162                 rxd = &tpr->rx_jmb[i].std;
6163                 rxd->idx_len = TG3_RX_JMB_DMA_SZ << RXD_LEN_SHIFT;
6164                 rxd->type_flags = (RXD_FLAG_END << RXD_FLAGS_SHIFT) |
6165                                   RXD_FLAG_JUMBO;
6166                 rxd->opaque = (RXD_OPAQUE_RING_JUMBO |
6167                        (i << RXD_OPAQUE_INDEX_SHIFT));
6168         }
6169
6170         for (i = 0; i < tp->rx_jumbo_pending; i++) {
6171                 if (tg3_alloc_rx_skb(tp, tpr, RXD_OPAQUE_RING_JUMBO, i) < 0) {
6172                         netdev_warn(tp->dev,
6173                                     "Using a smaller RX jumbo ring. Only %d "
6174                                     "out of %d buffers were allocated "
6175                                     "successfully\n", i, tp->rx_jumbo_pending);
6176                         if (i == 0)
6177                                 goto initfail;
6178                         tp->rx_jumbo_pending = i;
6179                         break;
6180                 }
6181         }
6182
6183 done:
6184         return 0;
6185
6186 initfail:
6187         tg3_rx_prodring_free(tp, tpr);
6188         return -ENOMEM;
6189 }
6190
6191 static void tg3_rx_prodring_fini(struct tg3 *tp,
6192                                  struct tg3_rx_prodring_set *tpr)
6193 {
6194         kfree(tpr->rx_std_buffers);
6195         tpr->rx_std_buffers = NULL;
6196         kfree(tpr->rx_jmb_buffers);
6197         tpr->rx_jmb_buffers = NULL;
6198         if (tpr->rx_std) {
6199                 pci_free_consistent(tp->pdev, TG3_RX_RING_BYTES,
6200                                     tpr->rx_std, tpr->rx_std_mapping);
6201                 tpr->rx_std = NULL;
6202         }
6203         if (tpr->rx_jmb) {
6204                 pci_free_consistent(tp->pdev, TG3_RX_JUMBO_RING_BYTES,
6205                                     tpr->rx_jmb, tpr->rx_jmb_mapping);
6206                 tpr->rx_jmb = NULL;
6207         }
6208 }
6209
6210 static int tg3_rx_prodring_init(struct tg3 *tp,
6211                                 struct tg3_rx_prodring_set *tpr)
6212 {
6213         tpr->rx_std_buffers = kzalloc(TG3_RX_STD_BUFF_RING_SIZE, GFP_KERNEL);
6214         if (!tpr->rx_std_buffers)
6215                 return -ENOMEM;
6216
6217         tpr->rx_std = pci_alloc_consistent(tp->pdev, TG3_RX_RING_BYTES,
6218                                            &tpr->rx_std_mapping);
6219         if (!tpr->rx_std)
6220                 goto err_out;
6221
6222         if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) {
6223                 tpr->rx_jmb_buffers = kzalloc(TG3_RX_JMB_BUFF_RING_SIZE,
6224                                               GFP_KERNEL);
6225                 if (!tpr->rx_jmb_buffers)
6226                         goto err_out;
6227
6228                 tpr->rx_jmb = pci_alloc_consistent(tp->pdev,
6229                                                    TG3_RX_JUMBO_RING_BYTES,
6230                                                    &tpr->rx_jmb_mapping);
6231                 if (!tpr->rx_jmb)
6232                         goto err_out;
6233         }
6234
6235         return 0;
6236
6237 err_out:
6238         tg3_rx_prodring_fini(tp, tpr);
6239         return -ENOMEM;
6240 }
6241
6242 /* Free up pending packets in all rx/tx rings.
6243  *
6244  * The chip has been shut down and the driver detached from
6245  * the networking, so no interrupts or new tx packets will
6246  * end up in the driver.  tp->{tx,}lock is not held and we are not
6247  * in an interrupt context and thus may sleep.
6248  */
6249 static void tg3_free_rings(struct tg3 *tp)
6250 {
6251         int i, j;
6252
6253         for (j = 0; j < tp->irq_cnt; j++) {
6254                 struct tg3_napi *tnapi = &tp->napi[j];
6255
6256                 tg3_rx_prodring_free(tp, &tp->prodring[j]);
6257
6258                 if (!tnapi->tx_buffers)
6259                         continue;
6260
6261                 for (i = 0; i < TG3_TX_RING_SIZE; ) {
6262                         struct ring_info *txp;
6263                         struct sk_buff *skb;
6264                         unsigned int k;
6265
6266                         txp = &tnapi->tx_buffers[i];
6267                         skb = txp->skb;
6268
6269                         if (skb == NULL) {
6270                                 i++;
6271                                 continue;
6272                         }
6273
6274                         pci_unmap_single(tp->pdev,
6275                                          dma_unmap_addr(txp, mapping),
6276                                          skb_headlen(skb),
6277                                          PCI_DMA_TODEVICE);
6278                         txp->skb = NULL;
6279
6280                         i++;
6281
6282                         for (k = 0; k < skb_shinfo(skb)->nr_frags; k++) {
6283                                 txp = &tnapi->tx_buffers[i & (TG3_TX_RING_SIZE - 1)];
6284                                 pci_unmap_page(tp->pdev,
6285                                                dma_unmap_addr(txp, mapping),
6286                                                skb_shinfo(skb)->frags[k].size,
6287                                                PCI_DMA_TODEVICE);
6288                                 i++;
6289                         }
6290
6291                         dev_kfree_skb_any(skb);
6292                 }
6293         }
6294 }
6295
6296 /* Initialize tx/rx rings for packet processing.
6297  *
6298  * The chip has been shut down and the driver detached from
6299  * the networking, so no interrupts or new tx packets will
6300  * end up in the driver.  tp->{tx,}lock are held and thus
6301  * we may not sleep.
6302  */
6303 static int tg3_init_rings(struct tg3 *tp)
6304 {
6305         int i;
6306
6307         /* Free up all the SKBs. */
6308         tg3_free_rings(tp);
6309
6310         for (i = 0; i < tp->irq_cnt; i++) {
6311                 struct tg3_napi *tnapi = &tp->napi[i];
6312
6313                 tnapi->last_tag = 0;
6314                 tnapi->last_irq_tag = 0;
6315                 tnapi->hw_status->status = 0;
6316                 tnapi->hw_status->status_tag = 0;
6317                 memset(tnapi->hw_status, 0, TG3_HW_STATUS_SIZE);
6318
6319                 tnapi->tx_prod = 0;
6320                 tnapi->tx_cons = 0;
6321                 if (tnapi->tx_ring)
6322                         memset(tnapi->tx_ring, 0, TG3_TX_RING_BYTES);
6323
6324                 tnapi->rx_rcb_ptr = 0;
6325                 if (tnapi->rx_rcb)
6326                         memset(tnapi->rx_rcb, 0, TG3_RX_RCB_RING_BYTES(tp));
6327
6328                 if (tg3_rx_prodring_alloc(tp, &tp->prodring[i])) {
6329                         tg3_free_rings(tp);
6330                         return -ENOMEM;
6331                 }
6332         }
6333
6334         return 0;
6335 }
6336
6337 /*
6338  * Must not be invoked with interrupt sources disabled and
6339  * the hardware shutdown down.
6340  */
6341 static void tg3_free_consistent(struct tg3 *tp)
6342 {
6343         int i;
6344
6345         for (i = 0; i < tp->irq_cnt; i++) {
6346                 struct tg3_napi *tnapi = &tp->napi[i];
6347
6348                 if (tnapi->tx_ring) {
6349                         pci_free_consistent(tp->pdev, TG3_TX_RING_BYTES,
6350                                 tnapi->tx_ring, tnapi->tx_desc_mapping);
6351                         tnapi->tx_ring = NULL;
6352                 }
6353
6354                 kfree(tnapi->tx_buffers);
6355                 tnapi->tx_buffers = NULL;
6356
6357                 if (tnapi->rx_rcb) {
6358                         pci_free_consistent(tp->pdev, TG3_RX_RCB_RING_BYTES(tp),
6359                                             tnapi->rx_rcb,
6360                                             tnapi->rx_rcb_mapping);
6361                         tnapi->rx_rcb = NULL;
6362                 }
6363
6364                 if (tnapi->hw_status) {
6365                         pci_free_consistent(tp->pdev, TG3_HW_STATUS_SIZE,
6366                                             tnapi->hw_status,
6367                                             tnapi->status_mapping);
6368                         tnapi->hw_status = NULL;
6369                 }
6370         }
6371
6372         if (tp->hw_stats) {
6373                 pci_free_consistent(tp->pdev, sizeof(struct tg3_hw_stats),
6374                                     tp->hw_stats, tp->stats_mapping);
6375                 tp->hw_stats = NULL;
6376         }
6377
6378         for (i = 0; i < tp->irq_cnt; i++)
6379                 tg3_rx_prodring_fini(tp, &tp->prodring[i]);
6380 }
6381
6382 /*
6383  * Must not be invoked with interrupt sources disabled and
6384  * the hardware shutdown down.  Can sleep.
6385  */
6386 static int tg3_alloc_consistent(struct tg3 *tp)
6387 {
6388         int i;
6389
6390         for (i = 0; i < tp->irq_cnt; i++) {
6391                 if (tg3_rx_prodring_init(tp, &tp->prodring[i]))
6392                         goto err_out;
6393         }
6394
6395         tp->hw_stats = pci_alloc_consistent(tp->pdev,
6396                                             sizeof(struct tg3_hw_stats),
6397                                             &tp->stats_mapping);
6398         if (!tp->hw_stats)
6399                 goto err_out;
6400
6401         memset(tp->hw_stats, 0, sizeof(struct tg3_hw_stats));
6402
6403         for (i = 0; i < tp->irq_cnt; i++) {
6404                 struct tg3_napi *tnapi = &tp->napi[i];
6405                 struct tg3_hw_status *sblk;
6406
6407                 tnapi->hw_status = pci_alloc_consistent(tp->pdev,
6408                                                         TG3_HW_STATUS_SIZE,
6409                                                         &tnapi->status_mapping);
6410                 if (!tnapi->hw_status)
6411                         goto err_out;
6412
6413                 memset(tnapi->hw_status, 0, TG3_HW_STATUS_SIZE);
6414                 sblk = tnapi->hw_status;
6415
6416                 /* If multivector TSS is enabled, vector 0 does not handle
6417                  * tx interrupts.  Don't allocate any resources for it.
6418                  */
6419                 if ((!i && !(tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)) ||
6420                     (i && (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS))) {
6421                         tnapi->tx_buffers = kzalloc(sizeof(struct ring_info) *
6422                                                     TG3_TX_RING_SIZE,
6423                                                     GFP_KERNEL);
6424                         if (!tnapi->tx_buffers)
6425                                 goto err_out;
6426
6427                         tnapi->tx_ring = pci_alloc_consistent(tp->pdev,
6428                                                               TG3_TX_RING_BYTES,
6429                                                        &tnapi->tx_desc_mapping);
6430                         if (!tnapi->tx_ring)
6431                                 goto err_out;
6432                 }
6433
6434                 /*
6435                  * When RSS is enabled, the status block format changes
6436                  * slightly.  The "rx_jumbo_consumer", "reserved",
6437                  * and "rx_mini_consumer" members get mapped to the
6438                  * other three rx return ring producer indexes.
6439                  */
6440                 switch (i) {
6441                 default:
6442                         tnapi->rx_rcb_prod_idx = &sblk->idx[0].rx_producer;
6443                         break;
6444                 case 2:
6445                         tnapi->rx_rcb_prod_idx = &sblk->rx_jumbo_consumer;
6446                         break;
6447                 case 3:
6448                         tnapi->rx_rcb_prod_idx = &sblk->reserved;
6449                         break;
6450                 case 4:
6451                         tnapi->rx_rcb_prod_idx = &sblk->rx_mini_consumer;
6452                         break;
6453                 }
6454
6455                 tnapi->prodring = &tp->prodring[i];
6456
6457                 /*
6458                  * If multivector RSS is enabled, vector 0 does not handle
6459                  * rx or tx interrupts.  Don't allocate any resources for it.
6460                  */
6461                 if (!i && (tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS))
6462                         continue;
6463
6464                 tnapi->rx_rcb = pci_alloc_consistent(tp->pdev,
6465                                                      TG3_RX_RCB_RING_BYTES(tp),
6466                                                      &tnapi->rx_rcb_mapping);
6467                 if (!tnapi->rx_rcb)
6468                         goto err_out;
6469
6470                 memset(tnapi->rx_rcb, 0, TG3_RX_RCB_RING_BYTES(tp));
6471         }
6472
6473         return 0;
6474
6475 err_out:
6476         tg3_free_consistent(tp);
6477         return -ENOMEM;
6478 }
6479
6480 #define MAX_WAIT_CNT 1000
6481
6482 /* To stop a block, clear the enable bit and poll till it
6483  * clears.  tp->lock is held.
6484  */
6485 static int tg3_stop_block(struct tg3 *tp, unsigned long ofs, u32 enable_bit, int silent)
6486 {
6487         unsigned int i;
6488         u32 val;
6489
6490         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
6491                 switch (ofs) {
6492                 case RCVLSC_MODE:
6493                 case DMAC_MODE:
6494                 case MBFREE_MODE:
6495                 case BUFMGR_MODE:
6496                 case MEMARB_MODE:
6497                         /* We can't enable/disable these bits of the
6498                          * 5705/5750, just say success.
6499                          */
6500                         return 0;
6501
6502                 default:
6503                         break;
6504                 }
6505         }
6506
6507         val = tr32(ofs);
6508         val &= ~enable_bit;
6509         tw32_f(ofs, val);
6510
6511         for (i = 0; i < MAX_WAIT_CNT; i++) {
6512                 udelay(100);
6513                 val = tr32(ofs);
6514                 if ((val & enable_bit) == 0)
6515                         break;
6516         }
6517
6518         if (i == MAX_WAIT_CNT && !silent) {
6519                 dev_err(&tp->pdev->dev,
6520                         "tg3_stop_block timed out, ofs=%lx enable_bit=%x\n",
6521                         ofs, enable_bit);
6522                 return -ENODEV;
6523         }
6524
6525         return 0;
6526 }
6527
6528 /* tp->lock is held. */
6529 static int tg3_abort_hw(struct tg3 *tp, int silent)
6530 {
6531         int i, err;
6532
6533         tg3_disable_ints(tp);
6534
6535         tp->rx_mode &= ~RX_MODE_ENABLE;
6536         tw32_f(MAC_RX_MODE, tp->rx_mode);
6537         udelay(10);
6538
6539         err  = tg3_stop_block(tp, RCVBDI_MODE, RCVBDI_MODE_ENABLE, silent);
6540         err |= tg3_stop_block(tp, RCVLPC_MODE, RCVLPC_MODE_ENABLE, silent);
6541         err |= tg3_stop_block(tp, RCVLSC_MODE, RCVLSC_MODE_ENABLE, silent);
6542         err |= tg3_stop_block(tp, RCVDBDI_MODE, RCVDBDI_MODE_ENABLE, silent);
6543         err |= tg3_stop_block(tp, RCVDCC_MODE, RCVDCC_MODE_ENABLE, silent);
6544         err |= tg3_stop_block(tp, RCVCC_MODE, RCVCC_MODE_ENABLE, silent);
6545
6546         err |= tg3_stop_block(tp, SNDBDS_MODE, SNDBDS_MODE_ENABLE, silent);
6547         err |= tg3_stop_block(tp, SNDBDI_MODE, SNDBDI_MODE_ENABLE, silent);
6548         err |= tg3_stop_block(tp, SNDDATAI_MODE, SNDDATAI_MODE_ENABLE, silent);
6549         err |= tg3_stop_block(tp, RDMAC_MODE, RDMAC_MODE_ENABLE, silent);
6550         err |= tg3_stop_block(tp, SNDDATAC_MODE, SNDDATAC_MODE_ENABLE, silent);
6551         err |= tg3_stop_block(tp, DMAC_MODE, DMAC_MODE_ENABLE, silent);
6552         err |= tg3_stop_block(tp, SNDBDC_MODE, SNDBDC_MODE_ENABLE, silent);
6553
6554         tp->mac_mode &= ~MAC_MODE_TDE_ENABLE;
6555         tw32_f(MAC_MODE, tp->mac_mode);
6556         udelay(40);
6557
6558         tp->tx_mode &= ~TX_MODE_ENABLE;
6559         tw32_f(MAC_TX_MODE, tp->tx_mode);
6560
6561         for (i = 0; i < MAX_WAIT_CNT; i++) {
6562                 udelay(100);
6563                 if (!(tr32(MAC_TX_MODE) & TX_MODE_ENABLE))
6564                         break;
6565         }
6566         if (i >= MAX_WAIT_CNT) {
6567                 dev_err(&tp->pdev->dev,
6568                         "%s timed out, TX_MODE_ENABLE will not clear "
6569                         "MAC_TX_MODE=%08x\n", __func__, tr32(MAC_TX_MODE));
6570                 err |= -ENODEV;
6571         }
6572
6573         err |= tg3_stop_block(tp, HOSTCC_MODE, HOSTCC_MODE_ENABLE, silent);
6574         err |= tg3_stop_block(tp, WDMAC_MODE, WDMAC_MODE_ENABLE, silent);
6575         err |= tg3_stop_block(tp, MBFREE_MODE, MBFREE_MODE_ENABLE, silent);
6576
6577         tw32(FTQ_RESET, 0xffffffff);
6578         tw32(FTQ_RESET, 0x00000000);
6579
6580         err |= tg3_stop_block(tp, BUFMGR_MODE, BUFMGR_MODE_ENABLE, silent);
6581         err |= tg3_stop_block(tp, MEMARB_MODE, MEMARB_MODE_ENABLE, silent);
6582
6583         for (i = 0; i < tp->irq_cnt; i++) {
6584                 struct tg3_napi *tnapi = &tp->napi[i];
6585                 if (tnapi->hw_status)
6586                         memset(tnapi->hw_status, 0, TG3_HW_STATUS_SIZE);
6587         }
6588         if (tp->hw_stats)
6589                 memset(tp->hw_stats, 0, sizeof(struct tg3_hw_stats));
6590
6591         return err;
6592 }
6593
6594 static void tg3_ape_send_event(struct tg3 *tp, u32 event)
6595 {
6596         int i;
6597         u32 apedata;
6598
6599         apedata = tg3_ape_read32(tp, TG3_APE_SEG_SIG);
6600         if (apedata != APE_SEG_SIG_MAGIC)
6601                 return;
6602
6603         apedata = tg3_ape_read32(tp, TG3_APE_FW_STATUS);
6604         if (!(apedata & APE_FW_STATUS_READY))
6605                 return;
6606
6607         /* Wait for up to 1 millisecond for APE to service previous event. */
6608         for (i = 0; i < 10; i++) {
6609                 if (tg3_ape_lock(tp, TG3_APE_LOCK_MEM))
6610                         return;
6611
6612                 apedata = tg3_ape_read32(tp, TG3_APE_EVENT_STATUS);
6613
6614                 if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING))
6615                         tg3_ape_write32(tp, TG3_APE_EVENT_STATUS,
6616                                         event | APE_EVENT_STATUS_EVENT_PENDING);
6617
6618                 tg3_ape_unlock(tp, TG3_APE_LOCK_MEM);
6619
6620                 if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING))
6621                         break;
6622
6623                 udelay(100);
6624         }
6625
6626         if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING))
6627                 tg3_ape_write32(tp, TG3_APE_EVENT, APE_EVENT_1);
6628 }
6629
6630 static void tg3_ape_driver_state_change(struct tg3 *tp, int kind)
6631 {
6632         u32 event;
6633         u32 apedata;
6634
6635         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE))
6636                 return;
6637
6638         switch (kind) {
6639         case RESET_KIND_INIT:
6640                 tg3_ape_write32(tp, TG3_APE_HOST_SEG_SIG,
6641                                 APE_HOST_SEG_SIG_MAGIC);
6642                 tg3_ape_write32(tp, TG3_APE_HOST_SEG_LEN,
6643                                 APE_HOST_SEG_LEN_MAGIC);
6644                 apedata = tg3_ape_read32(tp, TG3_APE_HOST_INIT_COUNT);
6645                 tg3_ape_write32(tp, TG3_APE_HOST_INIT_COUNT, ++apedata);
6646                 tg3_ape_write32(tp, TG3_APE_HOST_DRIVER_ID,
6647                         APE_HOST_DRIVER_ID_MAGIC(TG3_MAJ_NUM, TG3_MIN_NUM));
6648                 tg3_ape_write32(tp, TG3_APE_HOST_BEHAVIOR,
6649                                 APE_HOST_BEHAV_NO_PHYLOCK);
6650
6651                 event = APE_EVENT_STATUS_STATE_START;
6652                 break;
6653         case RESET_KIND_SHUTDOWN:
6654                 /* With the interface we are currently using,
6655                  * APE does not track driver state.  Wiping
6656                  * out the HOST SEGMENT SIGNATURE forces
6657                  * the APE to assume OS absent status.
6658                  */
6659                 tg3_ape_write32(tp, TG3_APE_HOST_SEG_SIG, 0x0);
6660
6661                 event = APE_EVENT_STATUS_STATE_UNLOAD;
6662                 break;
6663         case RESET_KIND_SUSPEND:
6664                 event = APE_EVENT_STATUS_STATE_SUSPEND;
6665                 break;
6666         default:
6667                 return;
6668         }
6669
6670         event |= APE_EVENT_STATUS_DRIVER_EVNT | APE_EVENT_STATUS_STATE_CHNGE;
6671
6672         tg3_ape_send_event(tp, event);
6673 }
6674
6675 /* tp->lock is held. */
6676 static void tg3_write_sig_pre_reset(struct tg3 *tp, int kind)
6677 {
6678         tg3_write_mem(tp, NIC_SRAM_FIRMWARE_MBOX,
6679                       NIC_SRAM_FIRMWARE_MBOX_MAGIC1);
6680
6681         if (tp->tg3_flags2 & TG3_FLG2_ASF_NEW_HANDSHAKE) {
6682                 switch (kind) {
6683                 case RESET_KIND_INIT:
6684                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6685                                       DRV_STATE_START);
6686                         break;
6687
6688                 case RESET_KIND_SHUTDOWN:
6689                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6690                                       DRV_STATE_UNLOAD);
6691                         break;
6692
6693                 case RESET_KIND_SUSPEND:
6694                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6695                                       DRV_STATE_SUSPEND);
6696                         break;
6697
6698                 default:
6699                         break;
6700                 }
6701         }
6702
6703         if (kind == RESET_KIND_INIT ||
6704             kind == RESET_KIND_SUSPEND)
6705                 tg3_ape_driver_state_change(tp, kind);
6706 }
6707
6708 /* tp->lock is held. */
6709 static void tg3_write_sig_post_reset(struct tg3 *tp, int kind)
6710 {
6711         if (tp->tg3_flags2 & TG3_FLG2_ASF_NEW_HANDSHAKE) {
6712                 switch (kind) {
6713                 case RESET_KIND_INIT:
6714                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6715                                       DRV_STATE_START_DONE);
6716                         break;
6717
6718                 case RESET_KIND_SHUTDOWN:
6719                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6720                                       DRV_STATE_UNLOAD_DONE);
6721                         break;
6722
6723                 default:
6724                         break;
6725                 }
6726         }
6727
6728         if (kind == RESET_KIND_SHUTDOWN)
6729                 tg3_ape_driver_state_change(tp, kind);
6730 }
6731
6732 /* tp->lock is held. */
6733 static void tg3_write_sig_legacy(struct tg3 *tp, int kind)
6734 {
6735         if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) {
6736                 switch (kind) {
6737                 case RESET_KIND_INIT:
6738                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6739                                       DRV_STATE_START);
6740                         break;
6741
6742                 case RESET_KIND_SHUTDOWN:
6743                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6744                                       DRV_STATE_UNLOAD);
6745                         break;
6746
6747                 case RESET_KIND_SUSPEND:
6748                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6749                                       DRV_STATE_SUSPEND);
6750                         break;
6751
6752                 default:
6753                         break;
6754                 }
6755         }
6756 }
6757
6758 static int tg3_poll_fw(struct tg3 *tp)
6759 {
6760         int i;
6761         u32 val;
6762
6763         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
6764                 /* Wait up to 20ms for init done. */
6765                 for (i = 0; i < 200; i++) {
6766                         if (tr32(VCPU_STATUS) & VCPU_STATUS_INIT_DONE)
6767                                 return 0;
6768                         udelay(100);
6769                 }
6770                 return -ENODEV;
6771         }
6772
6773         /* Wait for firmware initialization to complete. */
6774         for (i = 0; i < 100000; i++) {
6775                 tg3_read_mem(tp, NIC_SRAM_FIRMWARE_MBOX, &val);
6776                 if (val == ~NIC_SRAM_FIRMWARE_MBOX_MAGIC1)
6777                         break;
6778                 udelay(10);
6779         }
6780
6781         /* Chip might not be fitted with firmware.  Some Sun onboard
6782          * parts are configured like that.  So don't signal the timeout
6783          * of the above loop as an error, but do report the lack of
6784          * running firmware once.
6785          */
6786         if (i >= 100000 &&
6787             !(tp->tg3_flags2 & TG3_FLG2_NO_FWARE_REPORTED)) {
6788                 tp->tg3_flags2 |= TG3_FLG2_NO_FWARE_REPORTED;
6789
6790                 netdev_info(tp->dev, "No firmware running\n");
6791         }
6792
6793         if (tp->pci_chip_rev_id == CHIPREV_ID_57765_A0) {
6794                 /* The 57765 A0 needs a little more
6795                  * time to do some important work.
6796                  */
6797                 mdelay(10);
6798         }
6799
6800         return 0;
6801 }
6802
6803 /* Save PCI command register before chip reset */
6804 static void tg3_save_pci_state(struct tg3 *tp)
6805 {
6806         pci_read_config_word(tp->pdev, PCI_COMMAND, &tp->pci_cmd);
6807 }
6808
6809 /* Restore PCI state after chip reset */
6810 static void tg3_restore_pci_state(struct tg3 *tp)
6811 {
6812         u32 val;
6813
6814         /* Re-enable indirect register accesses. */
6815         pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
6816                                tp->misc_host_ctrl);
6817
6818         /* Set MAX PCI retry to zero. */
6819         val = (PCISTATE_ROM_ENABLE | PCISTATE_ROM_RETRY_ENABLE);
6820         if (tp->pci_chip_rev_id == CHIPREV_ID_5704_A0 &&
6821             (tp->tg3_flags & TG3_FLAG_PCIX_MODE))
6822                 val |= PCISTATE_RETRY_SAME_DMA;
6823         /* Allow reads and writes to the APE register and memory space. */
6824         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
6825                 val |= PCISTATE_ALLOW_APE_CTLSPC_WR |
6826                        PCISTATE_ALLOW_APE_SHMEM_WR |
6827                        PCISTATE_ALLOW_APE_PSPACE_WR;
6828         pci_write_config_dword(tp->pdev, TG3PCI_PCISTATE, val);
6829
6830         pci_write_config_word(tp->pdev, PCI_COMMAND, tp->pci_cmd);
6831
6832         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785) {
6833                 if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS)
6834                         pcie_set_readrq(tp->pdev, 4096);
6835                 else {
6836                         pci_write_config_byte(tp->pdev, PCI_CACHE_LINE_SIZE,
6837                                               tp->pci_cacheline_sz);
6838                         pci_write_config_byte(tp->pdev, PCI_LATENCY_TIMER,
6839                                               tp->pci_lat_timer);
6840                 }
6841         }
6842
6843         /* Make sure PCI-X relaxed ordering bit is clear. */
6844         if (tp->tg3_flags & TG3_FLAG_PCIX_MODE) {
6845                 u16 pcix_cmd;
6846
6847                 pci_read_config_word(tp->pdev, tp->pcix_cap + PCI_X_CMD,
6848                                      &pcix_cmd);
6849                 pcix_cmd &= ~PCI_X_CMD_ERO;
6850                 pci_write_config_word(tp->pdev, tp->pcix_cap + PCI_X_CMD,
6851                                       pcix_cmd);
6852         }
6853
6854         if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) {
6855
6856                 /* Chip reset on 5780 will reset MSI enable bit,
6857                  * so need to restore it.
6858                  */
6859                 if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
6860                         u16 ctrl;
6861
6862                         pci_read_config_word(tp->pdev,
6863                                              tp->msi_cap + PCI_MSI_FLAGS,
6864                                              &ctrl);
6865                         pci_write_config_word(tp->pdev,
6866                                               tp->msi_cap + PCI_MSI_FLAGS,
6867                                               ctrl | PCI_MSI_FLAGS_ENABLE);
6868                         val = tr32(MSGINT_MODE);
6869                         tw32(MSGINT_MODE, val | MSGINT_MODE_ENABLE);
6870                 }
6871         }
6872 }
6873
6874 static void tg3_stop_fw(struct tg3 *);
6875
6876 /* tp->lock is held. */
6877 static int tg3_chip_reset(struct tg3 *tp)
6878 {
6879         u32 val;
6880         void (*write_op)(struct tg3 *, u32, u32);
6881         int i, err;
6882
6883         tg3_nvram_lock(tp);
6884
6885         tg3_ape_lock(tp, TG3_APE_LOCK_GRC);
6886
6887         /* No matching tg3_nvram_unlock() after this because
6888          * chip reset below will undo the nvram lock.
6889          */
6890         tp->nvram_lock_cnt = 0;
6891
6892         /* GRC_MISC_CFG core clock reset will clear the memory
6893          * enable bit in PCI register 4 and the MSI enable bit
6894          * on some chips, so we save relevant registers here.
6895          */
6896         tg3_save_pci_state(tp);
6897
6898         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752 ||
6899             (tp->tg3_flags3 & TG3_FLG3_5755_PLUS))
6900                 tw32(GRC_FASTBOOT_PC, 0);
6901
6902         /*
6903          * We must avoid the readl() that normally takes place.
6904          * It locks machines, causes machine checks, and other
6905          * fun things.  So, temporarily disable the 5701
6906          * hardware workaround, while we do the reset.
6907          */
6908         write_op = tp->write32;
6909         if (write_op == tg3_write_flush_reg32)
6910                 tp->write32 = tg3_write32;
6911
6912         /* Prevent the irq handler from reading or writing PCI registers
6913          * during chip reset when the memory enable bit in the PCI command
6914          * register may be cleared.  The chip does not generate interrupt
6915          * at this time, but the irq handler may still be called due to irq
6916          * sharing or irqpoll.
6917          */
6918         tp->tg3_flags |= TG3_FLAG_CHIP_RESETTING;
6919         for (i = 0; i < tp->irq_cnt; i++) {
6920                 struct tg3_napi *tnapi = &tp->napi[i];
6921                 if (tnapi->hw_status) {
6922                         tnapi->hw_status->status = 0;
6923                         tnapi->hw_status->status_tag = 0;
6924                 }
6925                 tnapi->last_tag = 0;
6926                 tnapi->last_irq_tag = 0;
6927         }
6928         smp_mb();
6929
6930         for (i = 0; i < tp->irq_cnt; i++)
6931                 synchronize_irq(tp->napi[i].irq_vec);
6932
6933         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780) {
6934                 val = tr32(TG3_PCIE_LNKCTL) & ~TG3_PCIE_LNKCTL_L1_PLL_PD_EN;
6935                 tw32(TG3_PCIE_LNKCTL, val | TG3_PCIE_LNKCTL_L1_PLL_PD_DIS);
6936         }
6937
6938         /* do the reset */
6939         val = GRC_MISC_CFG_CORECLK_RESET;
6940
6941         if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
6942                 /* Force PCIe 1.0a mode */
6943                 if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785 &&
6944                     !(tp->tg3_flags3 & TG3_FLG3_5717_PLUS) &&
6945                     tr32(TG3_PCIE_PHY_TSTCTL) ==
6946                     (TG3_PCIE_PHY_TSTCTL_PCIE10 | TG3_PCIE_PHY_TSTCTL_PSCRAM))
6947                         tw32(TG3_PCIE_PHY_TSTCTL, TG3_PCIE_PHY_TSTCTL_PSCRAM);
6948
6949                 if (tp->pci_chip_rev_id != CHIPREV_ID_5750_A0) {
6950                         tw32(GRC_MISC_CFG, (1 << 29));
6951                         val |= (1 << 29);
6952                 }
6953         }
6954
6955         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
6956                 tw32(VCPU_STATUS, tr32(VCPU_STATUS) | VCPU_STATUS_DRV_RESET);
6957                 tw32(GRC_VCPU_EXT_CTRL,
6958                      tr32(GRC_VCPU_EXT_CTRL) & ~GRC_VCPU_EXT_CTRL_HALT_CPU);
6959         }
6960
6961         /* Manage gphy power for all CPMU absent PCIe devices. */
6962         if ((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
6963             !(tp->tg3_flags & TG3_FLAG_CPMU_PRESENT))
6964                 val |= GRC_MISC_CFG_KEEP_GPHY_POWER;
6965
6966         tw32(GRC_MISC_CFG, val);
6967
6968         /* restore 5701 hardware bug workaround write method */
6969         tp->write32 = write_op;
6970
6971         /* Unfortunately, we have to delay before the PCI read back.
6972          * Some 575X chips even will not respond to a PCI cfg access
6973          * when the reset command is given to the chip.
6974          *
6975          * How do these hardware designers expect things to work
6976          * properly if the PCI write is posted for a long period
6977          * of time?  It is always necessary to have some method by
6978          * which a register read back can occur to push the write
6979          * out which does the reset.
6980          *
6981          * For most tg3 variants the trick below was working.
6982          * Ho hum...
6983          */
6984         udelay(120);
6985
6986         /* Flush PCI posted writes.  The normal MMIO registers
6987          * are inaccessible at this time so this is the only
6988          * way to make this reliably (actually, this is no longer
6989          * the case, see above).  I tried to use indirect
6990          * register read/write but this upset some 5701 variants.
6991          */
6992         pci_read_config_dword(tp->pdev, PCI_COMMAND, &val);
6993
6994         udelay(120);
6995
6996         if ((tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) && tp->pcie_cap) {
6997                 u16 val16;
6998
6999                 if (tp->pci_chip_rev_id == CHIPREV_ID_5750_A0) {
7000                         int i;
7001                         u32 cfg_val;
7002
7003                         /* Wait for link training to complete.  */
7004                         for (i = 0; i < 5000; i++)
7005                                 udelay(100);
7006
7007                         pci_read_config_dword(tp->pdev, 0xc4, &cfg_val);
7008                         pci_write_config_dword(tp->pdev, 0xc4,
7009                                                cfg_val | (1 << 15));
7010                 }
7011
7012                 /* Clear the "no snoop" and "relaxed ordering" bits. */
7013                 pci_read_config_word(tp->pdev,
7014                                      tp->pcie_cap + PCI_EXP_DEVCTL,
7015                                      &val16);
7016                 val16 &= ~(PCI_EXP_DEVCTL_RELAX_EN |
7017                            PCI_EXP_DEVCTL_NOSNOOP_EN);
7018                 /*
7019                  * Older PCIe devices only support the 128 byte
7020                  * MPS setting.  Enforce the restriction.
7021                  */
7022                 if (!(tp->tg3_flags & TG3_FLAG_CPMU_PRESENT))
7023                         val16 &= ~PCI_EXP_DEVCTL_PAYLOAD;
7024                 pci_write_config_word(tp->pdev,
7025                                       tp->pcie_cap + PCI_EXP_DEVCTL,
7026                                       val16);
7027
7028                 pcie_set_readrq(tp->pdev, 4096);
7029
7030                 /* Clear error status */
7031                 pci_write_config_word(tp->pdev,
7032                                       tp->pcie_cap + PCI_EXP_DEVSTA,
7033                                       PCI_EXP_DEVSTA_CED |
7034                                       PCI_EXP_DEVSTA_NFED |
7035                                       PCI_EXP_DEVSTA_FED |
7036                                       PCI_EXP_DEVSTA_URD);
7037         }
7038
7039         tg3_restore_pci_state(tp);
7040
7041         tp->tg3_flags &= ~TG3_FLAG_CHIP_RESETTING;
7042
7043         val = 0;
7044         if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)
7045                 val = tr32(MEMARB_MODE);
7046         tw32(MEMARB_MODE, val | MEMARB_MODE_ENABLE);
7047
7048         if (tp->pci_chip_rev_id == CHIPREV_ID_5750_A3) {
7049                 tg3_stop_fw(tp);
7050                 tw32(0x5000, 0x400);
7051         }
7052
7053         tw32(GRC_MODE, tp->grc_mode);
7054
7055         if (tp->pci_chip_rev_id == CHIPREV_ID_5705_A0) {
7056                 val = tr32(0xc4);
7057
7058                 tw32(0xc4, val | (1 << 15));
7059         }
7060
7061         if ((tp->nic_sram_data_cfg & NIC_SRAM_DATA_CFG_MINI_PCI) != 0 &&
7062             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
7063                 tp->pci_clock_ctrl |= CLOCK_CTRL_CLKRUN_OENABLE;
7064                 if (tp->pci_chip_rev_id == CHIPREV_ID_5705_A0)
7065                         tp->pci_clock_ctrl |= CLOCK_CTRL_FORCE_CLKRUN;
7066                 tw32(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl);
7067         }
7068
7069         if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES) {
7070                 tp->mac_mode = MAC_MODE_PORT_MODE_TBI;
7071                 tw32_f(MAC_MODE, tp->mac_mode);
7072         } else if (tp->phy_flags & TG3_PHYFLG_MII_SERDES) {
7073                 tp->mac_mode = MAC_MODE_PORT_MODE_GMII;
7074                 tw32_f(MAC_MODE, tp->mac_mode);
7075         } else if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
7076                 tp->mac_mode &= (MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN);
7077                 if (tp->mac_mode & MAC_MODE_APE_TX_EN)
7078                         tp->mac_mode |= MAC_MODE_TDE_ENABLE;
7079                 tw32_f(MAC_MODE, tp->mac_mode);
7080         } else
7081                 tw32_f(MAC_MODE, 0);
7082         udelay(40);
7083
7084         tg3_ape_unlock(tp, TG3_APE_LOCK_GRC);
7085
7086         err = tg3_poll_fw(tp);
7087         if (err)
7088                 return err;
7089
7090         tg3_mdio_start(tp);
7091
7092         if ((tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) &&
7093             tp->pci_chip_rev_id != CHIPREV_ID_5750_A0 &&
7094             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785 &&
7095             !(tp->tg3_flags3 & TG3_FLG3_5717_PLUS)) {
7096                 val = tr32(0x7c00);
7097
7098                 tw32(0x7c00, val | (1 << 25));
7099         }
7100
7101         /* Reprobe ASF enable state.  */
7102         tp->tg3_flags &= ~TG3_FLAG_ENABLE_ASF;
7103         tp->tg3_flags2 &= ~TG3_FLG2_ASF_NEW_HANDSHAKE;
7104         tg3_read_mem(tp, NIC_SRAM_DATA_SIG, &val);
7105         if (val == NIC_SRAM_DATA_SIG_MAGIC) {
7106                 u32 nic_cfg;
7107
7108                 tg3_read_mem(tp, NIC_SRAM_DATA_CFG, &nic_cfg);
7109                 if (nic_cfg & NIC_SRAM_DATA_CFG_ASF_ENABLE) {
7110                         tp->tg3_flags |= TG3_FLAG_ENABLE_ASF;
7111                         tp->last_event_jiffies = jiffies;
7112                         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS)
7113                                 tp->tg3_flags2 |= TG3_FLG2_ASF_NEW_HANDSHAKE;
7114                 }
7115         }
7116
7117         return 0;
7118 }
7119
7120 /* tp->lock is held. */
7121 static void tg3_stop_fw(struct tg3 *tp)
7122 {
7123         if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) &&
7124            !(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)) {
7125                 /* Wait for RX cpu to ACK the previous event. */
7126                 tg3_wait_for_event_ack(tp);
7127
7128                 tg3_write_mem(tp, NIC_SRAM_FW_CMD_MBOX, FWCMD_NICDRV_PAUSE_FW);
7129
7130                 tg3_generate_fw_event(tp);
7131
7132                 /* Wait for RX cpu to ACK this event. */
7133                 tg3_wait_for_event_ack(tp);
7134         }
7135 }
7136
7137 /* tp->lock is held. */
7138 static int tg3_halt(struct tg3 *tp, int kind, int silent)
7139 {
7140         int err;
7141
7142         tg3_stop_fw(tp);
7143
7144         tg3_write_sig_pre_reset(tp, kind);
7145
7146         tg3_abort_hw(tp, silent);
7147         err = tg3_chip_reset(tp);
7148
7149         __tg3_set_mac_addr(tp, 0);
7150
7151         tg3_write_sig_legacy(tp, kind);
7152         tg3_write_sig_post_reset(tp, kind);
7153
7154         if (err)
7155                 return err;
7156
7157         return 0;
7158 }
7159
7160 #define RX_CPU_SCRATCH_BASE     0x30000
7161 #define RX_CPU_SCRATCH_SIZE     0x04000
7162 #define TX_CPU_SCRATCH_BASE     0x34000
7163 #define TX_CPU_SCRATCH_SIZE     0x04000
7164
7165 /* tp->lock is held. */
7166 static int tg3_halt_cpu(struct tg3 *tp, u32 offset)
7167 {
7168         int i;
7169
7170         BUG_ON(offset == TX_CPU_BASE &&
7171             (tp->tg3_flags2 & TG3_FLG2_5705_PLUS));
7172
7173         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
7174                 u32 val = tr32(GRC_VCPU_EXT_CTRL);
7175
7176                 tw32(GRC_VCPU_EXT_CTRL, val | GRC_VCPU_EXT_CTRL_HALT_CPU);
7177                 return 0;
7178         }
7179         if (offset == RX_CPU_BASE) {
7180                 for (i = 0; i < 10000; i++) {
7181                         tw32(offset + CPU_STATE, 0xffffffff);
7182                         tw32(offset + CPU_MODE,  CPU_MODE_HALT);
7183                         if (tr32(offset + CPU_MODE) & CPU_MODE_HALT)
7184                                 break;
7185                 }
7186
7187                 tw32(offset + CPU_STATE, 0xffffffff);
7188                 tw32_f(offset + CPU_MODE,  CPU_MODE_HALT);
7189                 udelay(10);
7190         } else {
7191                 for (i = 0; i < 10000; i++) {
7192                         tw32(offset + CPU_STATE, 0xffffffff);
7193                         tw32(offset + CPU_MODE,  CPU_MODE_HALT);
7194                         if (tr32(offset + CPU_MODE) & CPU_MODE_HALT)
7195                                 break;
7196                 }
7197         }
7198
7199         if (i >= 10000) {
7200                 netdev_err(tp->dev, "%s timed out, %s CPU\n",
7201                            __func__, offset == RX_CPU_BASE ? "RX" : "TX");
7202                 return -ENODEV;
7203         }
7204
7205         /* Clear firmware's nvram arbitration. */
7206         if (tp->tg3_flags & TG3_FLAG_NVRAM)
7207                 tw32(NVRAM_SWARB, SWARB_REQ_CLR0);
7208         return 0;
7209 }
7210
7211 struct fw_info {
7212         unsigned int fw_base;
7213         unsigned int fw_len;
7214         const __be32 *fw_data;
7215 };
7216
7217 /* tp->lock is held. */
7218 static int tg3_load_firmware_cpu(struct tg3 *tp, u32 cpu_base, u32 cpu_scratch_base,
7219                                  int cpu_scratch_size, struct fw_info *info)
7220 {
7221         int err, lock_err, i;
7222         void (*write_op)(struct tg3 *, u32, u32);
7223
7224         if (cpu_base == TX_CPU_BASE &&
7225             (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
7226                 netdev_err(tp->dev,
7227                            "%s: Trying to load TX cpu firmware which is 5705\n",
7228                            __func__);
7229                 return -EINVAL;
7230         }
7231
7232         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
7233                 write_op = tg3_write_mem;
7234         else
7235                 write_op = tg3_write_indirect_reg32;
7236
7237         /* It is possible that bootcode is still loading at this point.
7238          * Get the nvram lock first before halting the cpu.
7239          */
7240         lock_err = tg3_nvram_lock(tp);
7241         err = tg3_halt_cpu(tp, cpu_base);
7242         if (!lock_err)
7243                 tg3_nvram_unlock(tp);
7244         if (err)
7245                 goto out;
7246
7247         for (i = 0; i < cpu_scratch_size; i += sizeof(u32))
7248                 write_op(tp, cpu_scratch_base + i, 0);
7249         tw32(cpu_base + CPU_STATE, 0xffffffff);
7250         tw32(cpu_base + CPU_MODE, tr32(cpu_base+CPU_MODE)|CPU_MODE_HALT);
7251         for (i = 0; i < (info->fw_len / sizeof(u32)); i++)
7252                 write_op(tp, (cpu_scratch_base +
7253                               (info->fw_base & 0xffff) +
7254                               (i * sizeof(u32))),
7255                               be32_to_cpu(info->fw_data[i]));
7256
7257         err = 0;
7258
7259 out:
7260         return err;
7261 }
7262
7263 /* tp->lock is held. */
7264 static int tg3_load_5701_a0_firmware_fix(struct tg3 *tp)
7265 {
7266         struct fw_info info;
7267         const __be32 *fw_data;
7268         int err, i;
7269
7270         fw_data = (void *)tp->fw->data;
7271
7272         /* Firmware blob starts with version numbers, followed by
7273            start address and length. We are setting complete length.
7274            length = end_address_of_bss - start_address_of_text.
7275            Remainder is the blob to be loaded contiguously
7276            from start address. */
7277
7278         info.fw_base = be32_to_cpu(fw_data[1]);
7279         info.fw_len = tp->fw->size - 12;
7280         info.fw_data = &fw_data[3];
7281
7282         err = tg3_load_firmware_cpu(tp, RX_CPU_BASE,
7283                                     RX_CPU_SCRATCH_BASE, RX_CPU_SCRATCH_SIZE,
7284                                     &info);
7285         if (err)
7286                 return err;
7287
7288         err = tg3_load_firmware_cpu(tp, TX_CPU_BASE,
7289                                     TX_CPU_SCRATCH_BASE, TX_CPU_SCRATCH_SIZE,
7290                                     &info);
7291         if (err)
7292                 return err;
7293
7294         /* Now startup only the RX cpu. */
7295         tw32(RX_CPU_BASE + CPU_STATE, 0xffffffff);
7296         tw32_f(RX_CPU_BASE + CPU_PC, info.fw_base);
7297
7298         for (i = 0; i < 5; i++) {
7299                 if (tr32(RX_CPU_BASE + CPU_PC) == info.fw_base)
7300                         break;
7301                 tw32(RX_CPU_BASE + CPU_STATE, 0xffffffff);
7302                 tw32(RX_CPU_BASE + CPU_MODE,  CPU_MODE_HALT);
7303                 tw32_f(RX_CPU_BASE + CPU_PC, info.fw_base);
7304                 udelay(1000);
7305         }
7306         if (i >= 5) {
7307                 netdev_err(tp->dev, "%s fails to set RX CPU PC, is %08x "
7308                            "should be %08x\n", __func__,
7309                            tr32(RX_CPU_BASE + CPU_PC), info.fw_base);
7310                 return -ENODEV;
7311         }
7312         tw32(RX_CPU_BASE + CPU_STATE, 0xffffffff);
7313         tw32_f(RX_CPU_BASE + CPU_MODE,  0x00000000);
7314
7315         return 0;
7316 }
7317
7318 /* 5705 needs a special version of the TSO firmware.  */
7319
7320 /* tp->lock is held. */
7321 static int tg3_load_tso_firmware(struct tg3 *tp)
7322 {
7323         struct fw_info info;
7324         const __be32 *fw_data;
7325         unsigned long cpu_base, cpu_scratch_base, cpu_scratch_size;
7326         int err, i;
7327
7328         if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
7329                 return 0;
7330
7331         fw_data = (void *)tp->fw->data;
7332
7333         /* Firmware blob starts with version numbers, followed by
7334            start address and length. We are setting complete length.
7335            length = end_address_of_bss - start_address_of_text.
7336            Remainder is the blob to be loaded contiguously
7337            from start address. */
7338
7339         info.fw_base = be32_to_cpu(fw_data[1]);
7340         cpu_scratch_size = tp->fw_len;
7341         info.fw_len = tp->fw->size - 12;
7342         info.fw_data = &fw_data[3];
7343
7344         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
7345                 cpu_base = RX_CPU_BASE;
7346                 cpu_scratch_base = NIC_SRAM_MBUF_POOL_BASE5705;
7347         } else {
7348                 cpu_base = TX_CPU_BASE;
7349                 cpu_scratch_base = TX_CPU_SCRATCH_BASE;
7350                 cpu_scratch_size = TX_CPU_SCRATCH_SIZE;
7351         }
7352
7353         err = tg3_load_firmware_cpu(tp, cpu_base,
7354                                     cpu_scratch_base, cpu_scratch_size,
7355                                     &info);
7356         if (err)
7357                 return err;
7358
7359         /* Now startup the cpu. */
7360         tw32(cpu_base + CPU_STATE, 0xffffffff);
7361         tw32_f(cpu_base + CPU_PC, info.fw_base);
7362
7363         for (i = 0; i < 5; i++) {
7364                 if (tr32(cpu_base + CPU_PC) == info.fw_base)
7365                         break;
7366                 tw32(cpu_base + CPU_STATE, 0xffffffff);
7367                 tw32(cpu_base + CPU_MODE,  CPU_MODE_HALT);
7368                 tw32_f(cpu_base + CPU_PC, info.fw_base);
7369                 udelay(1000);
7370         }
7371         if (i >= 5) {
7372                 netdev_err(tp->dev,
7373                            "%s fails to set CPU PC, is %08x should be %08x\n",
7374                            __func__, tr32(cpu_base + CPU_PC), info.fw_base);
7375                 return -ENODEV;
7376         }
7377         tw32(cpu_base + CPU_STATE, 0xffffffff);
7378         tw32_f(cpu_base + CPU_MODE,  0x00000000);
7379         return 0;
7380 }
7381
7382
7383 static int tg3_set_mac_addr(struct net_device *dev, void *p)
7384 {
7385         struct tg3 *tp = netdev_priv(dev);
7386         struct sockaddr *addr = p;
7387         int err = 0, skip_mac_1 = 0;
7388
7389         if (!is_valid_ether_addr(addr->sa_data))
7390                 return -EINVAL;
7391
7392         memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
7393
7394         if (!netif_running(dev))
7395                 return 0;
7396
7397         if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) {
7398                 u32 addr0_high, addr0_low, addr1_high, addr1_low;
7399
7400                 addr0_high = tr32(MAC_ADDR_0_HIGH);
7401                 addr0_low = tr32(MAC_ADDR_0_LOW);
7402                 addr1_high = tr32(MAC_ADDR_1_HIGH);
7403                 addr1_low = tr32(MAC_ADDR_1_LOW);
7404
7405                 /* Skip MAC addr 1 if ASF is using it. */
7406                 if ((addr0_high != addr1_high || addr0_low != addr1_low) &&
7407                     !(addr1_high == 0 && addr1_low == 0))
7408                         skip_mac_1 = 1;
7409         }
7410         spin_lock_bh(&tp->lock);
7411         __tg3_set_mac_addr(tp, skip_mac_1);
7412         spin_unlock_bh(&tp->lock);
7413
7414         return err;
7415 }
7416
7417 /* tp->lock is held. */
7418 static void tg3_set_bdinfo(struct tg3 *tp, u32 bdinfo_addr,
7419                            dma_addr_t mapping, u32 maxlen_flags,
7420                            u32 nic_addr)
7421 {
7422         tg3_write_mem(tp,
7423                       (bdinfo_addr + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_HIGH),
7424                       ((u64) mapping >> 32));
7425         tg3_write_mem(tp,
7426                       (bdinfo_addr + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_LOW),
7427                       ((u64) mapping & 0xffffffff));
7428         tg3_write_mem(tp,
7429                       (bdinfo_addr + TG3_BDINFO_MAXLEN_FLAGS),
7430                        maxlen_flags);
7431
7432         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
7433                 tg3_write_mem(tp,
7434                               (bdinfo_addr + TG3_BDINFO_NIC_ADDR),
7435                               nic_addr);
7436 }
7437
7438 static void __tg3_set_rx_mode(struct net_device *);
7439 static void __tg3_set_coalesce(struct tg3 *tp, struct ethtool_coalesce *ec)
7440 {
7441         int i;
7442
7443         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)) {
7444                 tw32(HOSTCC_TXCOL_TICKS, ec->tx_coalesce_usecs);
7445                 tw32(HOSTCC_TXMAX_FRAMES, ec->tx_max_coalesced_frames);
7446                 tw32(HOSTCC_TXCOAL_MAXF_INT, ec->tx_max_coalesced_frames_irq);
7447         } else {
7448                 tw32(HOSTCC_TXCOL_TICKS, 0);
7449                 tw32(HOSTCC_TXMAX_FRAMES, 0);
7450                 tw32(HOSTCC_TXCOAL_MAXF_INT, 0);
7451         }
7452
7453         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS)) {
7454                 tw32(HOSTCC_RXCOL_TICKS, ec->rx_coalesce_usecs);
7455                 tw32(HOSTCC_RXMAX_FRAMES, ec->rx_max_coalesced_frames);
7456                 tw32(HOSTCC_RXCOAL_MAXF_INT, ec->rx_max_coalesced_frames_irq);
7457         } else {
7458                 tw32(HOSTCC_RXCOL_TICKS, 0);
7459                 tw32(HOSTCC_RXMAX_FRAMES, 0);
7460                 tw32(HOSTCC_RXCOAL_MAXF_INT, 0);
7461         }
7462
7463         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
7464                 u32 val = ec->stats_block_coalesce_usecs;
7465
7466                 tw32(HOSTCC_RXCOAL_TICK_INT, ec->rx_coalesce_usecs_irq);
7467                 tw32(HOSTCC_TXCOAL_TICK_INT, ec->tx_coalesce_usecs_irq);
7468
7469                 if (!netif_carrier_ok(tp->dev))
7470                         val = 0;
7471
7472                 tw32(HOSTCC_STAT_COAL_TICKS, val);
7473         }
7474
7475         for (i = 0; i < tp->irq_cnt - 1; i++) {
7476                 u32 reg;
7477
7478                 reg = HOSTCC_RXCOL_TICKS_VEC1 + i * 0x18;
7479                 tw32(reg, ec->rx_coalesce_usecs);
7480                 reg = HOSTCC_RXMAX_FRAMES_VEC1 + i * 0x18;
7481                 tw32(reg, ec->rx_max_coalesced_frames);
7482                 reg = HOSTCC_RXCOAL_MAXF_INT_VEC1 + i * 0x18;
7483                 tw32(reg, ec->rx_max_coalesced_frames_irq);
7484
7485                 if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS) {
7486                         reg = HOSTCC_TXCOL_TICKS_VEC1 + i * 0x18;
7487                         tw32(reg, ec->tx_coalesce_usecs);
7488                         reg = HOSTCC_TXMAX_FRAMES_VEC1 + i * 0x18;
7489                         tw32(reg, ec->tx_max_coalesced_frames);
7490                         reg = HOSTCC_TXCOAL_MAXF_INT_VEC1 + i * 0x18;
7491                         tw32(reg, ec->tx_max_coalesced_frames_irq);
7492                 }
7493         }
7494
7495         for (; i < tp->irq_max - 1; i++) {
7496                 tw32(HOSTCC_RXCOL_TICKS_VEC1 + i * 0x18, 0);
7497                 tw32(HOSTCC_RXMAX_FRAMES_VEC1 + i * 0x18, 0);
7498                 tw32(HOSTCC_RXCOAL_MAXF_INT_VEC1 + i * 0x18, 0);
7499
7500                 if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS) {
7501                         tw32(HOSTCC_TXCOL_TICKS_VEC1 + i * 0x18, 0);
7502                         tw32(HOSTCC_TXMAX_FRAMES_VEC1 + i * 0x18, 0);
7503                         tw32(HOSTCC_TXCOAL_MAXF_INT_VEC1 + i * 0x18, 0);
7504                 }
7505         }
7506 }
7507
7508 /* tp->lock is held. */
7509 static void tg3_rings_reset(struct tg3 *tp)
7510 {
7511         int i;
7512         u32 stblk, txrcb, rxrcb, limit;
7513         struct tg3_napi *tnapi = &tp->napi[0];
7514
7515         /* Disable all transmit rings but the first. */
7516         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
7517                 limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE * 16;
7518         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
7519                 limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE * 2;
7520         else
7521                 limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE;
7522
7523         for (txrcb = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE;
7524              txrcb < limit; txrcb += TG3_BDINFO_SIZE)
7525                 tg3_write_mem(tp, txrcb + TG3_BDINFO_MAXLEN_FLAGS,
7526                               BDINFO_FLAGS_DISABLED);
7527
7528
7529         /* Disable all receive return rings but the first. */
7530         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
7531             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719)
7532                 limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE * 17;
7533         else if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
7534                 limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE * 16;
7535         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 ||
7536                  GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
7537                 limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE * 4;
7538         else
7539                 limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE;
7540
7541         for (rxrcb = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE;
7542              rxrcb < limit; rxrcb += TG3_BDINFO_SIZE)
7543                 tg3_write_mem(tp, rxrcb + TG3_BDINFO_MAXLEN_FLAGS,
7544                               BDINFO_FLAGS_DISABLED);
7545
7546         /* Disable interrupts */
7547         tw32_mailbox_f(tp->napi[0].int_mbox, 1);
7548
7549         /* Zero mailbox registers. */
7550         if (tp->tg3_flags & TG3_FLAG_SUPPORT_MSIX) {
7551                 for (i = 1; i < TG3_IRQ_MAX_VECS; i++) {
7552                         tp->napi[i].tx_prod = 0;
7553                         tp->napi[i].tx_cons = 0;
7554                         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
7555                                 tw32_mailbox(tp->napi[i].prodmbox, 0);
7556                         tw32_rx_mbox(tp->napi[i].consmbox, 0);
7557                         tw32_mailbox_f(tp->napi[i].int_mbox, 1);
7558                 }
7559                 if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS))
7560                         tw32_mailbox(tp->napi[0].prodmbox, 0);
7561         } else {
7562                 tp->napi[0].tx_prod = 0;
7563                 tp->napi[0].tx_cons = 0;
7564                 tw32_mailbox(tp->napi[0].prodmbox, 0);
7565                 tw32_rx_mbox(tp->napi[0].consmbox, 0);
7566         }
7567
7568         /* Make sure the NIC-based send BD rings are disabled. */
7569         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
7570                 u32 mbox = MAILBOX_SNDNIC_PROD_IDX_0 + TG3_64BIT_REG_LOW;
7571                 for (i = 0; i < 16; i++)
7572                         tw32_tx_mbox(mbox + i * 8, 0);
7573         }
7574
7575         txrcb = NIC_SRAM_SEND_RCB;
7576         rxrcb = NIC_SRAM_RCV_RET_RCB;
7577
7578         /* Clear status block in ram. */
7579         memset(tnapi->hw_status, 0, TG3_HW_STATUS_SIZE);
7580
7581         /* Set status block DMA address */
7582         tw32(HOSTCC_STATUS_BLK_HOST_ADDR + TG3_64BIT_REG_HIGH,
7583              ((u64) tnapi->status_mapping >> 32));
7584         tw32(HOSTCC_STATUS_BLK_HOST_ADDR + TG3_64BIT_REG_LOW,
7585              ((u64) tnapi->status_mapping & 0xffffffff));
7586
7587         if (tnapi->tx_ring) {
7588                 tg3_set_bdinfo(tp, txrcb, tnapi->tx_desc_mapping,
7589                                (TG3_TX_RING_SIZE <<
7590                                 BDINFO_FLAGS_MAXLEN_SHIFT),
7591                                NIC_SRAM_TX_BUFFER_DESC);
7592                 txrcb += TG3_BDINFO_SIZE;
7593         }
7594
7595         if (tnapi->rx_rcb) {
7596                 tg3_set_bdinfo(tp, rxrcb, tnapi->rx_rcb_mapping,
7597                                (TG3_RX_RCB_RING_SIZE(tp) <<
7598                                 BDINFO_FLAGS_MAXLEN_SHIFT), 0);
7599                 rxrcb += TG3_BDINFO_SIZE;
7600         }
7601
7602         stblk = HOSTCC_STATBLCK_RING1;
7603
7604         for (i = 1, tnapi++; i < tp->irq_cnt; i++, tnapi++) {
7605                 u64 mapping = (u64)tnapi->status_mapping;
7606                 tw32(stblk + TG3_64BIT_REG_HIGH, mapping >> 32);
7607                 tw32(stblk + TG3_64BIT_REG_LOW, mapping & 0xffffffff);
7608
7609                 /* Clear status block in ram. */
7610                 memset(tnapi->hw_status, 0, TG3_HW_STATUS_SIZE);
7611
7612                 if (tnapi->tx_ring) {
7613                         tg3_set_bdinfo(tp, txrcb, tnapi->tx_desc_mapping,
7614                                        (TG3_TX_RING_SIZE <<
7615                                         BDINFO_FLAGS_MAXLEN_SHIFT),
7616                                        NIC_SRAM_TX_BUFFER_DESC);
7617                         txrcb += TG3_BDINFO_SIZE;
7618                 }
7619
7620                 tg3_set_bdinfo(tp, rxrcb, tnapi->rx_rcb_mapping,
7621                                (TG3_RX_RCB_RING_SIZE(tp) <<
7622                                 BDINFO_FLAGS_MAXLEN_SHIFT), 0);
7623
7624                 stblk += 8;
7625                 rxrcb += TG3_BDINFO_SIZE;
7626         }
7627 }
7628
7629 /* tp->lock is held. */
7630 static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
7631 {
7632         u32 val, rdmac_mode;
7633         int i, err, limit;
7634         struct tg3_rx_prodring_set *tpr = &tp->prodring[0];
7635
7636         tg3_disable_ints(tp);
7637
7638         tg3_stop_fw(tp);
7639
7640         tg3_write_sig_pre_reset(tp, RESET_KIND_INIT);
7641
7642         if (tp->tg3_flags & TG3_FLAG_INIT_COMPLETE)
7643                 tg3_abort_hw(tp, 1);
7644
7645         if (reset_phy)
7646                 tg3_phy_reset(tp);
7647
7648         err = tg3_chip_reset(tp);
7649         if (err)
7650                 return err;
7651
7652         tg3_write_sig_legacy(tp, RESET_KIND_INIT);
7653
7654         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX) {
7655                 val = tr32(TG3_CPMU_CTRL);
7656                 val &= ~(CPMU_CTRL_LINK_AWARE_MODE | CPMU_CTRL_LINK_IDLE_MODE);
7657                 tw32(TG3_CPMU_CTRL, val);
7658
7659                 val = tr32(TG3_CPMU_LSPD_10MB_CLK);
7660                 val &= ~CPMU_LSPD_10MB_MACCLK_MASK;
7661                 val |= CPMU_LSPD_10MB_MACCLK_6_25;
7662                 tw32(TG3_CPMU_LSPD_10MB_CLK, val);
7663
7664                 val = tr32(TG3_CPMU_LNK_AWARE_PWRMD);
7665                 val &= ~CPMU_LNK_AWARE_MACCLK_MASK;
7666                 val |= CPMU_LNK_AWARE_MACCLK_6_25;
7667                 tw32(TG3_CPMU_LNK_AWARE_PWRMD, val);
7668
7669                 val = tr32(TG3_CPMU_HST_ACC);
7670                 val &= ~CPMU_HST_ACC_MACCLK_MASK;
7671                 val |= CPMU_HST_ACC_MACCLK_6_25;
7672                 tw32(TG3_CPMU_HST_ACC, val);
7673         }
7674
7675         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780) {
7676                 val = tr32(PCIE_PWR_MGMT_THRESH) & ~PCIE_PWR_MGMT_L1_THRESH_MSK;
7677                 val |= PCIE_PWR_MGMT_EXT_ASPM_TMR_EN |
7678                        PCIE_PWR_MGMT_L1_THRESH_4MS;
7679                 tw32(PCIE_PWR_MGMT_THRESH, val);
7680
7681                 val = tr32(TG3_PCIE_EIDLE_DELAY) & ~TG3_PCIE_EIDLE_DELAY_MASK;
7682                 tw32(TG3_PCIE_EIDLE_DELAY, val | TG3_PCIE_EIDLE_DELAY_13_CLKS);
7683
7684                 tw32(TG3_CORR_ERR_STAT, TG3_CORR_ERR_STAT_CLEAR);
7685
7686                 val = tr32(TG3_PCIE_LNKCTL) & ~TG3_PCIE_LNKCTL_L1_PLL_PD_EN;
7687                 tw32(TG3_PCIE_LNKCTL, val | TG3_PCIE_LNKCTL_L1_PLL_PD_DIS);
7688         }
7689
7690         if (tp->tg3_flags3 & TG3_FLG3_L1PLLPD_EN) {
7691                 u32 grc_mode = tr32(GRC_MODE);
7692
7693                 /* Access the lower 1K of PL PCIE block registers. */
7694                 val = grc_mode & ~GRC_MODE_PCIE_PORT_MASK;
7695                 tw32(GRC_MODE, val | GRC_MODE_PCIE_PL_SEL);
7696
7697                 val = tr32(TG3_PCIE_TLDLPL_PORT + TG3_PCIE_PL_LO_PHYCTL1);
7698                 tw32(TG3_PCIE_TLDLPL_PORT + TG3_PCIE_PL_LO_PHYCTL1,
7699                      val | TG3_PCIE_PL_LO_PHYCTL1_L1PLLPD_EN);
7700
7701                 tw32(GRC_MODE, grc_mode);
7702         }
7703
7704         if (tp->pci_chip_rev_id == CHIPREV_ID_57765_A0) {
7705                 u32 grc_mode = tr32(GRC_MODE);
7706
7707                 /* Access the lower 1K of PL PCIE block registers. */
7708                 val = grc_mode & ~GRC_MODE_PCIE_PORT_MASK;
7709                 tw32(GRC_MODE, val | GRC_MODE_PCIE_PL_SEL);
7710
7711                 val = tr32(TG3_PCIE_TLDLPL_PORT + TG3_PCIE_PL_LO_PHYCTL5);
7712                 tw32(TG3_PCIE_TLDLPL_PORT + TG3_PCIE_PL_LO_PHYCTL5,
7713                      val | TG3_PCIE_PL_LO_PHYCTL5_DIS_L2CLKREQ);
7714
7715                 tw32(GRC_MODE, grc_mode);
7716
7717                 val = tr32(TG3_CPMU_LSPD_10MB_CLK);
7718                 val &= ~CPMU_LSPD_10MB_MACCLK_MASK;
7719                 val |= CPMU_LSPD_10MB_MACCLK_6_25;
7720                 tw32(TG3_CPMU_LSPD_10MB_CLK, val);
7721         }
7722
7723         /* This works around an issue with Athlon chipsets on
7724          * B3 tigon3 silicon.  This bit has no effect on any
7725          * other revision.  But do not set this on PCI Express
7726          * chips and don't even touch the clocks if the CPMU is present.
7727          */
7728         if (!(tp->tg3_flags & TG3_FLAG_CPMU_PRESENT)) {
7729                 if (!(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS))
7730                         tp->pci_clock_ctrl |= CLOCK_CTRL_DELAY_PCI_GRANT;
7731                 tw32_f(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl);
7732         }
7733
7734         if (tp->pci_chip_rev_id == CHIPREV_ID_5704_A0 &&
7735             (tp->tg3_flags & TG3_FLAG_PCIX_MODE)) {
7736                 val = tr32(TG3PCI_PCISTATE);
7737                 val |= PCISTATE_RETRY_SAME_DMA;
7738                 tw32(TG3PCI_PCISTATE, val);
7739         }
7740
7741         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
7742                 /* Allow reads and writes to the
7743                  * APE register and memory space.
7744                  */
7745                 val = tr32(TG3PCI_PCISTATE);
7746                 val |= PCISTATE_ALLOW_APE_CTLSPC_WR |
7747                        PCISTATE_ALLOW_APE_SHMEM_WR |
7748                        PCISTATE_ALLOW_APE_PSPACE_WR;
7749                 tw32(TG3PCI_PCISTATE, val);
7750         }
7751
7752         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5704_BX) {
7753                 /* Enable some hw fixes.  */
7754                 val = tr32(TG3PCI_MSI_DATA);
7755                 val |= (1 << 26) | (1 << 28) | (1 << 29);
7756                 tw32(TG3PCI_MSI_DATA, val);
7757         }
7758
7759         /* Descriptor ring init may make accesses to the
7760          * NIC SRAM area to setup the TX descriptors, so we
7761          * can only do this after the hardware has been
7762          * successfully reset.
7763          */
7764         err = tg3_init_rings(tp);
7765         if (err)
7766                 return err;
7767
7768         if (tp->tg3_flags3 & TG3_FLG3_5717_PLUS) {
7769                 val = tr32(TG3PCI_DMA_RW_CTRL) &
7770                       ~DMA_RWCTRL_DIS_CACHE_ALIGNMENT;
7771                 if (tp->pci_chip_rev_id == CHIPREV_ID_57765_A0)
7772                         val &= ~DMA_RWCTRL_CRDRDR_RDMA_MRRS_MSK;
7773                 tw32(TG3PCI_DMA_RW_CTRL, val | tp->dma_rwctrl);
7774         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5784 &&
7775                    GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5761) {
7776                 /* This value is determined during the probe time DMA
7777                  * engine test, tg3_test_dma.
7778                  */
7779                 tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
7780         }
7781
7782         tp->grc_mode &= ~(GRC_MODE_HOST_SENDBDS |
7783                           GRC_MODE_4X_NIC_SEND_RINGS |
7784                           GRC_MODE_NO_TX_PHDR_CSUM |
7785                           GRC_MODE_NO_RX_PHDR_CSUM);
7786         tp->grc_mode |= GRC_MODE_HOST_SENDBDS;
7787
7788         /* Pseudo-header checksum is done by hardware logic and not
7789          * the offload processers, so make the chip do the pseudo-
7790          * header checksums on receive.  For transmit it is more
7791          * convenient to do the pseudo-header checksum in software
7792          * as Linux does that on transmit for us in all cases.
7793          */
7794         tp->grc_mode |= GRC_MODE_NO_TX_PHDR_CSUM;
7795
7796         tw32(GRC_MODE,
7797              tp->grc_mode |
7798              (GRC_MODE_IRQ_ON_MAC_ATTN | GRC_MODE_HOST_STACKUP));
7799
7800         /* Setup the timer prescalar register.  Clock is always 66Mhz. */
7801         val = tr32(GRC_MISC_CFG);
7802         val &= ~0xff;
7803         val |= (65 << GRC_MISC_CFG_PRESCALAR_SHIFT);
7804         tw32(GRC_MISC_CFG, val);
7805
7806         /* Initialize MBUF/DESC pool. */
7807         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) {
7808                 /* Do nothing.  */
7809         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5705) {
7810                 tw32(BUFMGR_MB_POOL_ADDR, NIC_SRAM_MBUF_POOL_BASE);
7811                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704)
7812                         tw32(BUFMGR_MB_POOL_SIZE, NIC_SRAM_MBUF_POOL_SIZE64);
7813                 else
7814                         tw32(BUFMGR_MB_POOL_SIZE, NIC_SRAM_MBUF_POOL_SIZE96);
7815                 tw32(BUFMGR_DMA_DESC_POOL_ADDR, NIC_SRAM_DMA_DESC_POOL_BASE);
7816                 tw32(BUFMGR_DMA_DESC_POOL_SIZE, NIC_SRAM_DMA_DESC_POOL_SIZE);
7817         } else if (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) {
7818                 int fw_len;
7819
7820                 fw_len = tp->fw_len;
7821                 fw_len = (fw_len + (0x80 - 1)) & ~(0x80 - 1);
7822                 tw32(BUFMGR_MB_POOL_ADDR,
7823                      NIC_SRAM_MBUF_POOL_BASE5705 + fw_len);
7824                 tw32(BUFMGR_MB_POOL_SIZE,
7825                      NIC_SRAM_MBUF_POOL_SIZE5705 - fw_len - 0xa00);
7826         }
7827
7828         if (tp->dev->mtu <= ETH_DATA_LEN) {
7829                 tw32(BUFMGR_MB_RDMA_LOW_WATER,
7830                      tp->bufmgr_config.mbuf_read_dma_low_water);
7831                 tw32(BUFMGR_MB_MACRX_LOW_WATER,
7832                      tp->bufmgr_config.mbuf_mac_rx_low_water);
7833                 tw32(BUFMGR_MB_HIGH_WATER,
7834                      tp->bufmgr_config.mbuf_high_water);
7835         } else {
7836                 tw32(BUFMGR_MB_RDMA_LOW_WATER,
7837                      tp->bufmgr_config.mbuf_read_dma_low_water_jumbo);
7838                 tw32(BUFMGR_MB_MACRX_LOW_WATER,
7839                      tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo);
7840                 tw32(BUFMGR_MB_HIGH_WATER,
7841                      tp->bufmgr_config.mbuf_high_water_jumbo);
7842         }
7843         tw32(BUFMGR_DMA_LOW_WATER,
7844              tp->bufmgr_config.dma_low_water);
7845         tw32(BUFMGR_DMA_HIGH_WATER,
7846              tp->bufmgr_config.dma_high_water);
7847
7848         tw32(BUFMGR_MODE, BUFMGR_MODE_ENABLE | BUFMGR_MODE_ATTN_ENABLE);
7849         for (i = 0; i < 2000; i++) {
7850                 if (tr32(BUFMGR_MODE) & BUFMGR_MODE_ENABLE)
7851                         break;
7852                 udelay(10);
7853         }
7854         if (i >= 2000) {
7855                 netdev_err(tp->dev, "%s cannot enable BUFMGR\n", __func__);
7856                 return -ENODEV;
7857         }
7858
7859         /* Setup replenish threshold. */
7860         val = tp->rx_pending / 8;
7861         if (val == 0)
7862                 val = 1;
7863         else if (val > tp->rx_std_max_post)
7864                 val = tp->rx_std_max_post;
7865         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
7866                 if (tp->pci_chip_rev_id == CHIPREV_ID_5906_A1)
7867                         tw32(ISO_PKT_TX, (tr32(ISO_PKT_TX) & ~0x3) | 0x2);
7868
7869                 if (val > (TG3_RX_INTERNAL_RING_SZ_5906 / 2))
7870                         val = TG3_RX_INTERNAL_RING_SZ_5906 / 2;
7871         }
7872
7873         tw32(RCVBDI_STD_THRESH, val);
7874
7875         /* Initialize TG3_BDINFO's at:
7876          *  RCVDBDI_STD_BD:     standard eth size rx ring
7877          *  RCVDBDI_JUMBO_BD:   jumbo frame rx ring
7878          *  RCVDBDI_MINI_BD:    small frame rx ring (??? does not work)
7879          *
7880          * like so:
7881          *  TG3_BDINFO_HOST_ADDR:       high/low parts of DMA address of ring
7882          *  TG3_BDINFO_MAXLEN_FLAGS:    (rx max buffer size << 16) |
7883          *                              ring attribute flags
7884          *  TG3_BDINFO_NIC_ADDR:        location of descriptors in nic SRAM
7885          *
7886          * Standard receive ring @ NIC_SRAM_RX_BUFFER_DESC, 512 entries.
7887          * Jumbo receive ring @ NIC_SRAM_RX_JUMBO_BUFFER_DESC, 256 entries.
7888          *
7889          * The size of each ring is fixed in the firmware, but the location is
7890          * configurable.
7891          */
7892         tw32(RCVDBDI_STD_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_HIGH,
7893              ((u64) tpr->rx_std_mapping >> 32));
7894         tw32(RCVDBDI_STD_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_LOW,
7895              ((u64) tpr->rx_std_mapping & 0xffffffff));
7896         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5717 &&
7897             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5719)
7898                 tw32(RCVDBDI_STD_BD + TG3_BDINFO_NIC_ADDR,
7899                      NIC_SRAM_RX_BUFFER_DESC);
7900
7901         /* Disable the mini ring */
7902         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
7903                 tw32(RCVDBDI_MINI_BD + TG3_BDINFO_MAXLEN_FLAGS,
7904                      BDINFO_FLAGS_DISABLED);
7905
7906         /* Program the jumbo buffer descriptor ring control
7907          * blocks on those devices that have them.
7908          */
7909         if ((tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) &&
7910             !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
7911                 /* Setup replenish threshold. */
7912                 tw32(RCVBDI_JUMBO_THRESH, tp->rx_jumbo_pending / 8);
7913
7914                 if (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE) {
7915                         tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_HIGH,
7916                              ((u64) tpr->rx_jmb_mapping >> 32));
7917                         tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_LOW,
7918                              ((u64) tpr->rx_jmb_mapping & 0xffffffff));
7919                         tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_MAXLEN_FLAGS,
7920                              (RX_JUMBO_MAX_SIZE << BDINFO_FLAGS_MAXLEN_SHIFT) |
7921                              BDINFO_FLAGS_USE_EXT_RECV);
7922                         if (!(tp->tg3_flags3 & TG3_FLG3_USE_JUMBO_BDFLAG) ||
7923                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
7924                                 tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_NIC_ADDR,
7925                                      NIC_SRAM_RX_JUMBO_BUFFER_DESC);
7926                 } else {
7927                         tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_MAXLEN_FLAGS,
7928                              BDINFO_FLAGS_DISABLED);
7929                 }
7930
7931                 if (tp->tg3_flags3 & TG3_FLG3_5717_PLUS)
7932                         val = (RX_STD_MAX_SIZE_5705 << BDINFO_FLAGS_MAXLEN_SHIFT) |
7933                               (TG3_RX_STD_DMA_SZ << 2);
7934                 else
7935                         val = TG3_RX_STD_DMA_SZ << BDINFO_FLAGS_MAXLEN_SHIFT;
7936         } else
7937                 val = RX_STD_MAX_SIZE_5705 << BDINFO_FLAGS_MAXLEN_SHIFT;
7938
7939         tw32(RCVDBDI_STD_BD + TG3_BDINFO_MAXLEN_FLAGS, val);
7940
7941         tpr->rx_std_prod_idx = tp->rx_pending;
7942         tw32_rx_mbox(TG3_RX_STD_PROD_IDX_REG, tpr->rx_std_prod_idx);
7943
7944         tpr->rx_jmb_prod_idx = (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE) ?
7945                           tp->rx_jumbo_pending : 0;
7946         tw32_rx_mbox(TG3_RX_JMB_PROD_IDX_REG, tpr->rx_jmb_prod_idx);
7947
7948         if (tp->tg3_flags3 & TG3_FLG3_5717_PLUS) {
7949                 tw32(STD_REPLENISH_LWM, 32);
7950                 tw32(JMB_REPLENISH_LWM, 16);
7951         }
7952
7953         tg3_rings_reset(tp);
7954
7955         /* Initialize MAC address and backoff seed. */
7956         __tg3_set_mac_addr(tp, 0);
7957
7958         /* MTU + ethernet header + FCS + optional VLAN tag */
7959         tw32(MAC_RX_MTU_SIZE,
7960              tp->dev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN);
7961
7962         /* The slot time is changed by tg3_setup_phy if we
7963          * run at gigabit with half duplex.
7964          */
7965         tw32(MAC_TX_LENGTHS,
7966              (2 << TX_LENGTHS_IPG_CRS_SHIFT) |
7967              (6 << TX_LENGTHS_IPG_SHIFT) |
7968              (32 << TX_LENGTHS_SLOT_TIME_SHIFT));
7969
7970         /* Receive rules. */
7971         tw32(MAC_RCV_RULE_CFG, RCV_RULE_CFG_DEFAULT_CLASS);
7972         tw32(RCVLPC_CONFIG, 0x0181);
7973
7974         /* Calculate RDMAC_MODE setting early, we need it to determine
7975          * the RCVLPC_STATE_ENABLE mask.
7976          */
7977         rdmac_mode = (RDMAC_MODE_ENABLE | RDMAC_MODE_TGTABORT_ENAB |
7978                       RDMAC_MODE_MSTABORT_ENAB | RDMAC_MODE_PARITYERR_ENAB |
7979                       RDMAC_MODE_ADDROFLOW_ENAB | RDMAC_MODE_FIFOOFLOW_ENAB |
7980                       RDMAC_MODE_FIFOURUN_ENAB | RDMAC_MODE_FIFOOREAD_ENAB |
7981                       RDMAC_MODE_LNGREAD_ENAB);
7982
7983         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
7984             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719)
7985                 rdmac_mode |= RDMAC_MODE_MULT_DMA_RD_DIS;
7986
7987         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
7988             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
7989             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
7990                 rdmac_mode |= RDMAC_MODE_BD_SBD_CRPT_ENAB |
7991                               RDMAC_MODE_MBUF_RBD_CRPT_ENAB |
7992                               RDMAC_MODE_MBUF_SBD_CRPT_ENAB;
7993
7994         /* If statement applies to 5705 and 5750 PCI devices only */
7995         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 &&
7996              tp->pci_chip_rev_id != CHIPREV_ID_5705_A0) ||
7997             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750)) {
7998                 if (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE &&
7999                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
8000                         rdmac_mode |= RDMAC_MODE_FIFO_SIZE_128;
8001                 } else if (!(tr32(TG3PCI_PCISTATE) & PCISTATE_BUS_SPEED_HIGH) &&
8002                            !(tp->tg3_flags2 & TG3_FLG2_IS_5788)) {
8003                         rdmac_mode |= RDMAC_MODE_FIFO_LONG_BURST;
8004                 }
8005         }
8006
8007         if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS)
8008                 rdmac_mode |= RDMAC_MODE_FIFO_LONG_BURST;
8009
8010         if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
8011                 rdmac_mode |= RDMAC_MODE_IPV4_LSO_EN;
8012
8013         if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_3) ||
8014             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
8015             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
8016                 rdmac_mode |= RDMAC_MODE_IPV6_LSO_EN;
8017
8018         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
8019             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
8020             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
8021             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 ||
8022             (tp->tg3_flags3 & TG3_FLG3_5717_PLUS)) {
8023                 val = tr32(TG3_RDMA_RSRVCTRL_REG);
8024                 tw32(TG3_RDMA_RSRVCTRL_REG,
8025                      val | TG3_RDMA_RSRVCTRL_FIFO_OFLW_FIX);
8026         }
8027
8028         /* Receive/send statistics. */
8029         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) {
8030                 val = tr32(RCVLPC_STATS_ENABLE);
8031                 val &= ~RCVLPC_STATSENAB_DACK_FIX;
8032                 tw32(RCVLPC_STATS_ENABLE, val);
8033         } else if ((rdmac_mode & RDMAC_MODE_FIFO_SIZE_128) &&
8034                    (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE)) {
8035                 val = tr32(RCVLPC_STATS_ENABLE);
8036                 val &= ~RCVLPC_STATSENAB_LNGBRST_RFIX;
8037                 tw32(RCVLPC_STATS_ENABLE, val);
8038         } else {
8039                 tw32(RCVLPC_STATS_ENABLE, 0xffffff);
8040         }
8041         tw32(RCVLPC_STATSCTRL, RCVLPC_STATSCTRL_ENABLE);
8042         tw32(SNDDATAI_STATSENAB, 0xffffff);
8043         tw32(SNDDATAI_STATSCTRL,
8044              (SNDDATAI_SCTRL_ENABLE |
8045               SNDDATAI_SCTRL_FASTUPD));
8046
8047         /* Setup host coalescing engine. */
8048         tw32(HOSTCC_MODE, 0);
8049         for (i = 0; i < 2000; i++) {
8050                 if (!(tr32(HOSTCC_MODE) & HOSTCC_MODE_ENABLE))
8051                         break;
8052                 udelay(10);
8053         }
8054
8055         __tg3_set_coalesce(tp, &tp->coal);
8056
8057         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
8058                 /* Status/statistics block address.  See tg3_timer,
8059                  * the tg3_periodic_fetch_stats call there, and
8060                  * tg3_get_stats to see how this works for 5705/5750 chips.
8061                  */
8062                 tw32(HOSTCC_STATS_BLK_HOST_ADDR + TG3_64BIT_REG_HIGH,
8063                      ((u64) tp->stats_mapping >> 32));
8064                 tw32(HOSTCC_STATS_BLK_HOST_ADDR + TG3_64BIT_REG_LOW,
8065                      ((u64) tp->stats_mapping & 0xffffffff));
8066                 tw32(HOSTCC_STATS_BLK_NIC_ADDR, NIC_SRAM_STATS_BLK);
8067
8068                 tw32(HOSTCC_STATUS_BLK_NIC_ADDR, NIC_SRAM_STATUS_BLK);
8069
8070                 /* Clear statistics and status block memory areas */
8071                 for (i = NIC_SRAM_STATS_BLK;
8072                      i < NIC_SRAM_STATUS_BLK + TG3_HW_STATUS_SIZE;
8073                      i += sizeof(u32)) {
8074                         tg3_write_mem(tp, i, 0);
8075                         udelay(40);
8076                 }
8077         }
8078
8079         tw32(HOSTCC_MODE, HOSTCC_MODE_ENABLE | tp->coalesce_mode);
8080
8081         tw32(RCVCC_MODE, RCVCC_MODE_ENABLE | RCVCC_MODE_ATTN_ENABLE);
8082         tw32(RCVLPC_MODE, RCVLPC_MODE_ENABLE);
8083         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
8084                 tw32(RCVLSC_MODE, RCVLSC_MODE_ENABLE | RCVLSC_MODE_ATTN_ENABLE);
8085
8086         if (tp->phy_flags & TG3_PHYFLG_MII_SERDES) {
8087                 tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
8088                 /* reset to prevent losing 1st rx packet intermittently */
8089                 tw32_f(MAC_RX_MODE, RX_MODE_RESET);
8090                 udelay(10);
8091         }
8092
8093         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
8094                 tp->mac_mode &= MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN;
8095         else
8096                 tp->mac_mode = 0;
8097         tp->mac_mode |= MAC_MODE_TXSTAT_ENABLE | MAC_MODE_RXSTAT_ENABLE |
8098                 MAC_MODE_TDE_ENABLE | MAC_MODE_RDE_ENABLE | MAC_MODE_FHDE_ENABLE;
8099         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
8100             !(tp->phy_flags & TG3_PHYFLG_PHY_SERDES) &&
8101             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700)
8102                 tp->mac_mode |= MAC_MODE_LINK_POLARITY;
8103         tw32_f(MAC_MODE, tp->mac_mode | MAC_MODE_RXSTAT_CLEAR | MAC_MODE_TXSTAT_CLEAR);
8104         udelay(40);
8105
8106         /* tp->grc_local_ctrl is partially set up during tg3_get_invariants().
8107          * If TG3_FLG2_IS_NIC is zero, we should read the
8108          * register to preserve the GPIO settings for LOMs. The GPIOs,
8109          * whether used as inputs or outputs, are set by boot code after
8110          * reset.
8111          */
8112         if (!(tp->tg3_flags2 & TG3_FLG2_IS_NIC)) {
8113                 u32 gpio_mask;
8114
8115                 gpio_mask = GRC_LCLCTRL_GPIO_OE0 | GRC_LCLCTRL_GPIO_OE1 |
8116                             GRC_LCLCTRL_GPIO_OE2 | GRC_LCLCTRL_GPIO_OUTPUT0 |
8117                             GRC_LCLCTRL_GPIO_OUTPUT1 | GRC_LCLCTRL_GPIO_OUTPUT2;
8118
8119                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752)
8120                         gpio_mask |= GRC_LCLCTRL_GPIO_OE3 |
8121                                      GRC_LCLCTRL_GPIO_OUTPUT3;
8122
8123                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755)
8124                         gpio_mask |= GRC_LCLCTRL_GPIO_UART_SEL;
8125
8126                 tp->grc_local_ctrl &= ~gpio_mask;
8127                 tp->grc_local_ctrl |= tr32(GRC_LOCAL_CTRL) & gpio_mask;
8128
8129                 /* GPIO1 must be driven high for eeprom write protect */
8130                 if (tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT)
8131                         tp->grc_local_ctrl |= (GRC_LCLCTRL_GPIO_OE1 |
8132                                                GRC_LCLCTRL_GPIO_OUTPUT1);
8133         }
8134         tw32_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl);
8135         udelay(100);
8136
8137         if (tp->tg3_flags2 & TG3_FLG2_USING_MSIX) {
8138                 val = tr32(MSGINT_MODE);
8139                 val |= MSGINT_MODE_MULTIVEC_EN | MSGINT_MODE_ENABLE;
8140                 tw32(MSGINT_MODE, val);
8141         }
8142
8143         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
8144                 tw32_f(DMAC_MODE, DMAC_MODE_ENABLE);
8145                 udelay(40);
8146         }
8147
8148         val = (WDMAC_MODE_ENABLE | WDMAC_MODE_TGTABORT_ENAB |
8149                WDMAC_MODE_MSTABORT_ENAB | WDMAC_MODE_PARITYERR_ENAB |
8150                WDMAC_MODE_ADDROFLOW_ENAB | WDMAC_MODE_FIFOOFLOW_ENAB |
8151                WDMAC_MODE_FIFOURUN_ENAB | WDMAC_MODE_FIFOOREAD_ENAB |
8152                WDMAC_MODE_LNGREAD_ENAB);
8153
8154         /* If statement applies to 5705 and 5750 PCI devices only */
8155         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 &&
8156              tp->pci_chip_rev_id != CHIPREV_ID_5705_A0) ||
8157             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750) {
8158                 if ((tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) &&
8159                     (tp->pci_chip_rev_id == CHIPREV_ID_5705_A1 ||
8160                      tp->pci_chip_rev_id == CHIPREV_ID_5705_A2)) {
8161                         /* nothing */
8162                 } else if (!(tr32(TG3PCI_PCISTATE) & PCISTATE_BUS_SPEED_HIGH) &&
8163                            !(tp->tg3_flags2 & TG3_FLG2_IS_5788) &&
8164                            !(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS)) {
8165                         val |= WDMAC_MODE_RX_ACCEL;
8166                 }
8167         }
8168
8169         /* Enable host coalescing bug fix */
8170         if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
8171                 val |= WDMAC_MODE_STATUS_TAG_FIX;
8172
8173         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
8174                 val |= WDMAC_MODE_BURST_ALL_DATA;
8175
8176         tw32_f(WDMAC_MODE, val);
8177         udelay(40);
8178
8179         if (tp->tg3_flags & TG3_FLAG_PCIX_MODE) {
8180                 u16 pcix_cmd;
8181
8182                 pci_read_config_word(tp->pdev, tp->pcix_cap + PCI_X_CMD,
8183                                      &pcix_cmd);
8184                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703) {
8185                         pcix_cmd &= ~PCI_X_CMD_MAX_READ;
8186                         pcix_cmd |= PCI_X_CMD_READ_2K;
8187                 } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
8188                         pcix_cmd &= ~(PCI_X_CMD_MAX_SPLIT | PCI_X_CMD_MAX_READ);
8189                         pcix_cmd |= PCI_X_CMD_READ_2K;
8190                 }
8191                 pci_write_config_word(tp->pdev, tp->pcix_cap + PCI_X_CMD,
8192                                       pcix_cmd);
8193         }
8194
8195         tw32_f(RDMAC_MODE, rdmac_mode);
8196         udelay(40);
8197
8198         tw32(RCVDCC_MODE, RCVDCC_MODE_ENABLE | RCVDCC_MODE_ATTN_ENABLE);
8199         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
8200                 tw32(MBFREE_MODE, MBFREE_MODE_ENABLE);
8201
8202         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761)
8203                 tw32(SNDDATAC_MODE,
8204                      SNDDATAC_MODE_ENABLE | SNDDATAC_MODE_CDELAY);
8205         else
8206                 tw32(SNDDATAC_MODE, SNDDATAC_MODE_ENABLE);
8207
8208         tw32(SNDBDC_MODE, SNDBDC_MODE_ENABLE | SNDBDC_MODE_ATTN_ENABLE);
8209         tw32(RCVBDI_MODE, RCVBDI_MODE_ENABLE | RCVBDI_MODE_RCB_ATTN_ENAB);
8210         tw32(RCVDBDI_MODE, RCVDBDI_MODE_ENABLE | RCVDBDI_MODE_INV_RING_SZ);
8211         tw32(SNDDATAI_MODE, SNDDATAI_MODE_ENABLE);
8212         if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
8213                 tw32(SNDDATAI_MODE, SNDDATAI_MODE_ENABLE | 0x8);
8214         val = SNDBDI_MODE_ENABLE | SNDBDI_MODE_ATTN_ENABLE;
8215         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
8216                 val |= SNDBDI_MODE_MULTI_TXQ_EN;
8217         tw32(SNDBDI_MODE, val);
8218         tw32(SNDBDS_MODE, SNDBDS_MODE_ENABLE | SNDBDS_MODE_ATTN_ENABLE);
8219
8220         if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0) {
8221                 err = tg3_load_5701_a0_firmware_fix(tp);
8222                 if (err)
8223                         return err;
8224         }
8225
8226         if (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) {
8227                 err = tg3_load_tso_firmware(tp);
8228                 if (err)
8229                         return err;
8230         }
8231
8232         tp->tx_mode = TX_MODE_ENABLE;
8233         if ((tp->tg3_flags3 & TG3_FLG3_5755_PLUS) ||
8234             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
8235                 tp->tx_mode |= TX_MODE_MBUF_LOCKUP_FIX;
8236         tw32_f(MAC_TX_MODE, tp->tx_mode);
8237         udelay(100);
8238
8239         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS) {
8240                 u32 reg = MAC_RSS_INDIR_TBL_0;
8241                 u8 *ent = (u8 *)&val;
8242
8243                 /* Setup the indirection table */
8244                 for (i = 0; i < TG3_RSS_INDIR_TBL_SIZE; i++) {
8245                         int idx = i % sizeof(val);
8246
8247                         ent[idx] = i % (tp->irq_cnt - 1);
8248                         if (idx == sizeof(val) - 1) {
8249                                 tw32(reg, val);
8250                                 reg += 4;
8251                         }
8252                 }
8253
8254                 /* Setup the "secret" hash key. */
8255                 tw32(MAC_RSS_HASH_KEY_0, 0x5f865437);
8256                 tw32(MAC_RSS_HASH_KEY_1, 0xe4ac62cc);
8257                 tw32(MAC_RSS_HASH_KEY_2, 0x50103a45);
8258                 tw32(MAC_RSS_HASH_KEY_3, 0x36621985);
8259                 tw32(MAC_RSS_HASH_KEY_4, 0xbf14c0e8);
8260                 tw32(MAC_RSS_HASH_KEY_5, 0x1bc27a1e);
8261                 tw32(MAC_RSS_HASH_KEY_6, 0x84f4b556);
8262                 tw32(MAC_RSS_HASH_KEY_7, 0x094ea6fe);
8263                 tw32(MAC_RSS_HASH_KEY_8, 0x7dda01e7);
8264                 tw32(MAC_RSS_HASH_KEY_9, 0xc04d7481);
8265         }
8266
8267         tp->rx_mode = RX_MODE_ENABLE;
8268         if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
8269                 tp->rx_mode |= RX_MODE_IPV6_CSUM_ENABLE;
8270
8271         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS)
8272                 tp->rx_mode |= RX_MODE_RSS_ENABLE |
8273                                RX_MODE_RSS_ITBL_HASH_BITS_7 |
8274                                RX_MODE_RSS_IPV6_HASH_EN |
8275                                RX_MODE_RSS_TCP_IPV6_HASH_EN |
8276                                RX_MODE_RSS_IPV4_HASH_EN |
8277                                RX_MODE_RSS_TCP_IPV4_HASH_EN;
8278
8279         tw32_f(MAC_RX_MODE, tp->rx_mode);
8280         udelay(10);
8281
8282         tw32(MAC_LED_CTRL, tp->led_ctrl);
8283
8284         tw32(MAC_MI_STAT, MAC_MI_STAT_LNKSTAT_ATTN_ENAB);
8285         if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES) {
8286                 tw32_f(MAC_RX_MODE, RX_MODE_RESET);
8287                 udelay(10);
8288         }
8289         tw32_f(MAC_RX_MODE, tp->rx_mode);
8290         udelay(10);
8291
8292         if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES) {
8293                 if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) &&
8294                         !(tp->phy_flags & TG3_PHYFLG_SERDES_PREEMPHASIS)) {
8295                         /* Set drive transmission level to 1.2V  */
8296                         /* only if the signal pre-emphasis bit is not set  */
8297                         val = tr32(MAC_SERDES_CFG);
8298                         val &= 0xfffff000;
8299                         val |= 0x880;
8300                         tw32(MAC_SERDES_CFG, val);
8301                 }
8302                 if (tp->pci_chip_rev_id == CHIPREV_ID_5703_A1)
8303                         tw32(MAC_SERDES_CFG, 0x616000);
8304         }
8305
8306         /* Prevent chip from dropping frames when flow control
8307          * is enabled.
8308          */
8309         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
8310                 val = 1;
8311         else
8312                 val = 2;
8313         tw32_f(MAC_LOW_WMARK_MAX_RX_FRAME, val);
8314
8315         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 &&
8316             (tp->phy_flags & TG3_PHYFLG_PHY_SERDES)) {
8317                 /* Use hardware link auto-negotiation */
8318                 tp->tg3_flags2 |= TG3_FLG2_HW_AUTONEG;
8319         }
8320
8321         if ((tp->phy_flags & TG3_PHYFLG_MII_SERDES) &&
8322             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714)) {
8323                 u32 tmp;
8324
8325                 tmp = tr32(SERDES_RX_CTRL);
8326                 tw32(SERDES_RX_CTRL, tmp | SERDES_RX_SIG_DETECT);
8327                 tp->grc_local_ctrl &= ~GRC_LCLCTRL_USE_EXT_SIG_DETECT;
8328                 tp->grc_local_ctrl |= GRC_LCLCTRL_USE_SIG_DETECT;
8329                 tw32(GRC_LOCAL_CTRL, tp->grc_local_ctrl);
8330         }
8331
8332         if (!(tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB)) {
8333                 if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER) {
8334                         tp->phy_flags &= ~TG3_PHYFLG_IS_LOW_POWER;
8335                         tp->link_config.speed = tp->link_config.orig_speed;
8336                         tp->link_config.duplex = tp->link_config.orig_duplex;
8337                         tp->link_config.autoneg = tp->link_config.orig_autoneg;
8338                 }
8339
8340                 err = tg3_setup_phy(tp, 0);
8341                 if (err)
8342                         return err;
8343
8344                 if (!(tp->phy_flags & TG3_PHYFLG_PHY_SERDES) &&
8345                     !(tp->phy_flags & TG3_PHYFLG_IS_FET)) {
8346                         u32 tmp;
8347
8348                         /* Clear CRC stats. */
8349                         if (!tg3_readphy(tp, MII_TG3_TEST1, &tmp)) {
8350                                 tg3_writephy(tp, MII_TG3_TEST1,
8351                                              tmp | MII_TG3_TEST1_CRC_EN);
8352                                 tg3_readphy(tp, MII_TG3_RXR_COUNTERS, &tmp);
8353                         }
8354                 }
8355         }
8356
8357         __tg3_set_rx_mode(tp->dev);
8358
8359         /* Initialize receive rules. */
8360         tw32(MAC_RCV_RULE_0,  0xc2000000 & RCV_RULE_DISABLE_MASK);
8361         tw32(MAC_RCV_VALUE_0, 0xffffffff & RCV_RULE_DISABLE_MASK);
8362         tw32(MAC_RCV_RULE_1,  0x86000004 & RCV_RULE_DISABLE_MASK);
8363         tw32(MAC_RCV_VALUE_1, 0xffffffff & RCV_RULE_DISABLE_MASK);
8364
8365         if ((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
8366             !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
8367                 limit = 8;
8368         else
8369                 limit = 16;
8370         if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF)
8371                 limit -= 4;
8372         switch (limit) {
8373         case 16:
8374                 tw32(MAC_RCV_RULE_15,  0); tw32(MAC_RCV_VALUE_15,  0);
8375         case 15:
8376                 tw32(MAC_RCV_RULE_14,  0); tw32(MAC_RCV_VALUE_14,  0);
8377         case 14:
8378                 tw32(MAC_RCV_RULE_13,  0); tw32(MAC_RCV_VALUE_13,  0);
8379         case 13:
8380                 tw32(MAC_RCV_RULE_12,  0); tw32(MAC_RCV_VALUE_12,  0);
8381         case 12:
8382                 tw32(MAC_RCV_RULE_11,  0); tw32(MAC_RCV_VALUE_11,  0);
8383         case 11:
8384                 tw32(MAC_RCV_RULE_10,  0); tw32(MAC_RCV_VALUE_10,  0);
8385         case 10:
8386                 tw32(MAC_RCV_RULE_9,  0); tw32(MAC_RCV_VALUE_9,  0);
8387         case 9:
8388                 tw32(MAC_RCV_RULE_8,  0); tw32(MAC_RCV_VALUE_8,  0);
8389         case 8:
8390                 tw32(MAC_RCV_RULE_7,  0); tw32(MAC_RCV_VALUE_7,  0);
8391         case 7:
8392                 tw32(MAC_RCV_RULE_6,  0); tw32(MAC_RCV_VALUE_6,  0);
8393         case 6:
8394                 tw32(MAC_RCV_RULE_5,  0); tw32(MAC_RCV_VALUE_5,  0);
8395         case 5:
8396                 tw32(MAC_RCV_RULE_4,  0); tw32(MAC_RCV_VALUE_4,  0);
8397         case 4:
8398                 /* tw32(MAC_RCV_RULE_3,  0); tw32(MAC_RCV_VALUE_3,  0); */
8399         case 3:
8400                 /* tw32(MAC_RCV_RULE_2,  0); tw32(MAC_RCV_VALUE_2,  0); */
8401         case 2:
8402         case 1:
8403
8404         default:
8405                 break;
8406         }
8407
8408         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
8409                 /* Write our heartbeat update interval to APE. */
8410                 tg3_ape_write32(tp, TG3_APE_HOST_HEARTBEAT_INT_MS,
8411                                 APE_HOST_HEARTBEAT_INT_DISABLE);
8412
8413         tg3_write_sig_post_reset(tp, RESET_KIND_INIT);
8414
8415         return 0;
8416 }
8417
8418 /* Called at device open time to get the chip ready for
8419  * packet processing.  Invoked with tp->lock held.
8420  */
8421 static int tg3_init_hw(struct tg3 *tp, int reset_phy)
8422 {
8423         tg3_switch_clocks(tp);
8424
8425         tw32(TG3PCI_MEM_WIN_BASE_ADDR, 0);
8426
8427         return tg3_reset_hw(tp, reset_phy);
8428 }
8429
8430 #define TG3_STAT_ADD32(PSTAT, REG) \
8431 do {    u32 __val = tr32(REG); \
8432         (PSTAT)->low += __val; \
8433         if ((PSTAT)->low < __val) \
8434                 (PSTAT)->high += 1; \
8435 } while (0)
8436
8437 static void tg3_periodic_fetch_stats(struct tg3 *tp)
8438 {
8439         struct tg3_hw_stats *sp = tp->hw_stats;
8440
8441         if (!netif_carrier_ok(tp->dev))
8442                 return;
8443
8444         TG3_STAT_ADD32(&sp->tx_octets, MAC_TX_STATS_OCTETS);
8445         TG3_STAT_ADD32(&sp->tx_collisions, MAC_TX_STATS_COLLISIONS);
8446         TG3_STAT_ADD32(&sp->tx_xon_sent, MAC_TX_STATS_XON_SENT);
8447         TG3_STAT_ADD32(&sp->tx_xoff_sent, MAC_TX_STATS_XOFF_SENT);
8448         TG3_STAT_ADD32(&sp->tx_mac_errors, MAC_TX_STATS_MAC_ERRORS);
8449         TG3_STAT_ADD32(&sp->tx_single_collisions, MAC_TX_STATS_SINGLE_COLLISIONS);
8450         TG3_STAT_ADD32(&sp->tx_mult_collisions, MAC_TX_STATS_MULT_COLLISIONS);
8451         TG3_STAT_ADD32(&sp->tx_deferred, MAC_TX_STATS_DEFERRED);
8452         TG3_STAT_ADD32(&sp->tx_excessive_collisions, MAC_TX_STATS_EXCESSIVE_COL);
8453         TG3_STAT_ADD32(&sp->tx_late_collisions, MAC_TX_STATS_LATE_COL);
8454         TG3_STAT_ADD32(&sp->tx_ucast_packets, MAC_TX_STATS_UCAST);
8455         TG3_STAT_ADD32(&sp->tx_mcast_packets, MAC_TX_STATS_MCAST);
8456         TG3_STAT_ADD32(&sp->tx_bcast_packets, MAC_TX_STATS_BCAST);
8457
8458         TG3_STAT_ADD32(&sp->rx_octets, MAC_RX_STATS_OCTETS);
8459         TG3_STAT_ADD32(&sp->rx_fragments, MAC_RX_STATS_FRAGMENTS);
8460         TG3_STAT_ADD32(&sp->rx_ucast_packets, MAC_RX_STATS_UCAST);
8461         TG3_STAT_ADD32(&sp->rx_mcast_packets, MAC_RX_STATS_MCAST);
8462         TG3_STAT_ADD32(&sp->rx_bcast_packets, MAC_RX_STATS_BCAST);
8463         TG3_STAT_ADD32(&sp->rx_fcs_errors, MAC_RX_STATS_FCS_ERRORS);
8464         TG3_STAT_ADD32(&sp->rx_align_errors, MAC_RX_STATS_ALIGN_ERRORS);
8465         TG3_STAT_ADD32(&sp->rx_xon_pause_rcvd, MAC_RX_STATS_XON_PAUSE_RECVD);
8466         TG3_STAT_ADD32(&sp->rx_xoff_pause_rcvd, MAC_RX_STATS_XOFF_PAUSE_RECVD);
8467         TG3_STAT_ADD32(&sp->rx_mac_ctrl_rcvd, MAC_RX_STATS_MAC_CTRL_RECVD);
8468         TG3_STAT_ADD32(&sp->rx_xoff_entered, MAC_RX_STATS_XOFF_ENTERED);
8469         TG3_STAT_ADD32(&sp->rx_frame_too_long_errors, MAC_RX_STATS_FRAME_TOO_LONG);
8470         TG3_STAT_ADD32(&sp->rx_jabbers, MAC_RX_STATS_JABBERS);
8471         TG3_STAT_ADD32(&sp->rx_undersize_packets, MAC_RX_STATS_UNDERSIZE);
8472
8473         TG3_STAT_ADD32(&sp->rxbds_empty, RCVLPC_NO_RCV_BD_CNT);
8474         TG3_STAT_ADD32(&sp->rx_discards, RCVLPC_IN_DISCARDS_CNT);
8475         TG3_STAT_ADD32(&sp->rx_errors, RCVLPC_IN_ERRORS_CNT);
8476 }
8477
8478 static void tg3_timer(unsigned long __opaque)
8479 {
8480         struct tg3 *tp = (struct tg3 *) __opaque;
8481
8482         if (tp->irq_sync)
8483                 goto restart_timer;
8484
8485         spin_lock(&tp->lock);
8486
8487         if (!(tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)) {
8488                 /* All of this garbage is because when using non-tagged
8489                  * IRQ status the mailbox/status_block protocol the chip
8490                  * uses with the cpu is race prone.
8491                  */
8492                 if (tp->napi[0].hw_status->status & SD_STATUS_UPDATED) {
8493                         tw32(GRC_LOCAL_CTRL,
8494                              tp->grc_local_ctrl | GRC_LCLCTRL_SETINT);
8495                 } else {
8496                         tw32(HOSTCC_MODE, tp->coalesce_mode |
8497                              HOSTCC_MODE_ENABLE | HOSTCC_MODE_NOW);
8498                 }
8499
8500                 if (!(tr32(WDMAC_MODE) & WDMAC_MODE_ENABLE)) {
8501                         tp->tg3_flags2 |= TG3_FLG2_RESTART_TIMER;
8502                         spin_unlock(&tp->lock);
8503                         schedule_work(&tp->reset_task);
8504                         return;
8505                 }
8506         }
8507
8508         /* This part only runs once per second. */
8509         if (!--tp->timer_counter) {
8510                 if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
8511                         tg3_periodic_fetch_stats(tp);
8512
8513                 if (tp->tg3_flags & TG3_FLAG_USE_LINKCHG_REG) {
8514                         u32 mac_stat;
8515                         int phy_event;
8516
8517                         mac_stat = tr32(MAC_STATUS);
8518
8519                         phy_event = 0;
8520                         if (tp->phy_flags & TG3_PHYFLG_USE_MI_INTERRUPT) {
8521                                 if (mac_stat & MAC_STATUS_MI_INTERRUPT)
8522                                         phy_event = 1;
8523                         } else if (mac_stat & MAC_STATUS_LNKSTATE_CHANGED)
8524                                 phy_event = 1;
8525
8526                         if (phy_event)
8527                                 tg3_setup_phy(tp, 0);
8528                 } else if (tp->tg3_flags & TG3_FLAG_POLL_SERDES) {
8529                         u32 mac_stat = tr32(MAC_STATUS);
8530                         int need_setup = 0;
8531
8532                         if (netif_carrier_ok(tp->dev) &&
8533                             (mac_stat & MAC_STATUS_LNKSTATE_CHANGED)) {
8534                                 need_setup = 1;
8535                         }
8536                         if (!netif_carrier_ok(tp->dev) &&
8537                             (mac_stat & (MAC_STATUS_PCS_SYNCED |
8538                                          MAC_STATUS_SIGNAL_DET))) {
8539                                 need_setup = 1;
8540                         }
8541                         if (need_setup) {
8542                                 if (!tp->serdes_counter) {
8543                                         tw32_f(MAC_MODE,
8544                                              (tp->mac_mode &
8545                                               ~MAC_MODE_PORT_MODE_MASK));
8546                                         udelay(40);
8547                                         tw32_f(MAC_MODE, tp->mac_mode);
8548                                         udelay(40);
8549                                 }
8550                                 tg3_setup_phy(tp, 0);
8551                         }
8552                 } else if ((tp->phy_flags & TG3_PHYFLG_MII_SERDES) &&
8553                            (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
8554                         tg3_serdes_parallel_detect(tp);
8555                 }
8556
8557                 tp->timer_counter = tp->timer_multiplier;
8558         }
8559
8560         /* Heartbeat is only sent once every 2 seconds.
8561          *
8562          * The heartbeat is to tell the ASF firmware that the host
8563          * driver is still alive.  In the event that the OS crashes,
8564          * ASF needs to reset the hardware to free up the FIFO space
8565          * that may be filled with rx packets destined for the host.
8566          * If the FIFO is full, ASF will no longer function properly.
8567          *
8568          * Unintended resets have been reported on real time kernels
8569          * where the timer doesn't run on time.  Netpoll will also have
8570          * same problem.
8571          *
8572          * The new FWCMD_NICDRV_ALIVE3 command tells the ASF firmware
8573          * to check the ring condition when the heartbeat is expiring
8574          * before doing the reset.  This will prevent most unintended
8575          * resets.
8576          */
8577         if (!--tp->asf_counter) {
8578                 if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) &&
8579                     !(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)) {
8580                         tg3_wait_for_event_ack(tp);
8581
8582                         tg3_write_mem(tp, NIC_SRAM_FW_CMD_MBOX,
8583                                       FWCMD_NICDRV_ALIVE3);
8584                         tg3_write_mem(tp, NIC_SRAM_FW_CMD_LEN_MBOX, 4);
8585                         tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX,
8586                                       TG3_FW_UPDATE_TIMEOUT_SEC);
8587
8588                         tg3_generate_fw_event(tp);
8589                 }
8590                 tp->asf_counter = tp->asf_multiplier;
8591         }
8592
8593         spin_unlock(&tp->lock);
8594
8595 restart_timer:
8596         tp->timer.expires = jiffies + tp->timer_offset;
8597         add_timer(&tp->timer);
8598 }
8599
8600 static int tg3_request_irq(struct tg3 *tp, int irq_num)
8601 {
8602         irq_handler_t fn;
8603         unsigned long flags;
8604         char *name;
8605         struct tg3_napi *tnapi = &tp->napi[irq_num];
8606
8607         if (tp->irq_cnt == 1)
8608                 name = tp->dev->name;
8609         else {
8610                 name = &tnapi->irq_lbl[0];
8611                 snprintf(name, IFNAMSIZ, "%s-%d", tp->dev->name, irq_num);
8612                 name[IFNAMSIZ-1] = 0;
8613         }
8614
8615         if (tp->tg3_flags2 & TG3_FLG2_USING_MSI_OR_MSIX) {
8616                 fn = tg3_msi;
8617                 if (tp->tg3_flags2 & TG3_FLG2_1SHOT_MSI)
8618                         fn = tg3_msi_1shot;
8619                 flags = IRQF_SAMPLE_RANDOM;
8620         } else {
8621                 fn = tg3_interrupt;
8622                 if (tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)
8623                         fn = tg3_interrupt_tagged;
8624                 flags = IRQF_SHARED | IRQF_SAMPLE_RANDOM;
8625         }
8626
8627         return request_irq(tnapi->irq_vec, fn, flags, name, tnapi);
8628 }
8629
8630 static int tg3_test_interrupt(struct tg3 *tp)
8631 {
8632         struct tg3_napi *tnapi = &tp->napi[0];
8633         struct net_device *dev = tp->dev;
8634         int err, i, intr_ok = 0;
8635         u32 val;
8636
8637         if (!netif_running(dev))
8638                 return -ENODEV;
8639
8640         tg3_disable_ints(tp);
8641
8642         free_irq(tnapi->irq_vec, tnapi);
8643
8644         /*
8645          * Turn off MSI one shot mode.  Otherwise this test has no
8646          * observable way to know whether the interrupt was delivered.
8647          */
8648         if ((tp->tg3_flags3 & TG3_FLG3_5717_PLUS) &&
8649             (tp->tg3_flags2 & TG3_FLG2_USING_MSI)) {
8650                 val = tr32(MSGINT_MODE) | MSGINT_MODE_ONE_SHOT_DISABLE;
8651                 tw32(MSGINT_MODE, val);
8652         }
8653
8654         err = request_irq(tnapi->irq_vec, tg3_test_isr,
8655                           IRQF_SHARED | IRQF_SAMPLE_RANDOM, dev->name, tnapi);
8656         if (err)
8657                 return err;
8658
8659         tnapi->hw_status->status &= ~SD_STATUS_UPDATED;
8660         tg3_enable_ints(tp);
8661
8662         tw32_f(HOSTCC_MODE, tp->coalesce_mode | HOSTCC_MODE_ENABLE |
8663                tnapi->coal_now);
8664
8665         for (i = 0; i < 5; i++) {
8666                 u32 int_mbox, misc_host_ctrl;
8667
8668                 int_mbox = tr32_mailbox(tnapi->int_mbox);
8669                 misc_host_ctrl = tr32(TG3PCI_MISC_HOST_CTRL);
8670
8671                 if ((int_mbox != 0) ||
8672                     (misc_host_ctrl & MISC_HOST_CTRL_MASK_PCI_INT)) {
8673                         intr_ok = 1;
8674                         break;
8675                 }
8676
8677                 msleep(10);
8678         }
8679
8680         tg3_disable_ints(tp);
8681
8682         free_irq(tnapi->irq_vec, tnapi);
8683
8684         err = tg3_request_irq(tp, 0);
8685
8686         if (err)
8687                 return err;
8688
8689         if (intr_ok) {
8690                 /* Reenable MSI one shot mode. */
8691                 if ((tp->tg3_flags3 & TG3_FLG3_5717_PLUS) &&
8692                     (tp->tg3_flags2 & TG3_FLG2_USING_MSI)) {
8693                         val = tr32(MSGINT_MODE) & ~MSGINT_MODE_ONE_SHOT_DISABLE;
8694                         tw32(MSGINT_MODE, val);
8695                 }
8696                 return 0;
8697         }
8698
8699         return -EIO;
8700 }
8701
8702 /* Returns 0 if MSI test succeeds or MSI test fails and INTx mode is
8703  * successfully restored
8704  */
8705 static int tg3_test_msi(struct tg3 *tp)
8706 {
8707         int err;
8708         u16 pci_cmd;
8709
8710         if (!(tp->tg3_flags2 & TG3_FLG2_USING_MSI))
8711                 return 0;
8712
8713         /* Turn off SERR reporting in case MSI terminates with Master
8714          * Abort.
8715          */
8716         pci_read_config_word(tp->pdev, PCI_COMMAND, &pci_cmd);
8717         pci_write_config_word(tp->pdev, PCI_COMMAND,
8718                               pci_cmd & ~PCI_COMMAND_SERR);
8719
8720         err = tg3_test_interrupt(tp);
8721
8722         pci_write_config_word(tp->pdev, PCI_COMMAND, pci_cmd);
8723
8724         if (!err)
8725                 return 0;
8726
8727         /* other failures */
8728         if (err != -EIO)
8729                 return err;
8730
8731         /* MSI test failed, go back to INTx mode */
8732         netdev_warn(tp->dev, "No interrupt was generated using MSI. Switching "
8733                     "to INTx mode. Please report this failure to the PCI "
8734                     "maintainer and include system chipset information\n");
8735
8736         free_irq(tp->napi[0].irq_vec, &tp->napi[0]);
8737
8738         pci_disable_msi(tp->pdev);
8739
8740         tp->tg3_flags2 &= ~TG3_FLG2_USING_MSI;
8741         tp->napi[0].irq_vec = tp->pdev->irq;
8742
8743         err = tg3_request_irq(tp, 0);
8744         if (err)
8745                 return err;
8746
8747         /* Need to reset the chip because the MSI cycle may have terminated
8748          * with Master Abort.
8749          */
8750         tg3_full_lock(tp, 1);
8751
8752         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
8753         err = tg3_init_hw(tp, 1);
8754
8755         tg3_full_unlock(tp);
8756
8757         if (err)
8758                 free_irq(tp->napi[0].irq_vec, &tp->napi[0]);
8759
8760         return err;
8761 }
8762
8763 static int tg3_request_firmware(struct tg3 *tp)
8764 {
8765         const __be32 *fw_data;
8766
8767         if (request_firmware(&tp->fw, tp->fw_needed, &tp->pdev->dev)) {
8768                 netdev_err(tp->dev, "Failed to load firmware \"%s\"\n",
8769                            tp->fw_needed);
8770                 return -ENOENT;
8771         }
8772
8773         fw_data = (void *)tp->fw->data;
8774
8775         /* Firmware blob starts with version numbers, followed by
8776          * start address and _full_ length including BSS sections
8777          * (which must be longer than the actual data, of course
8778          */
8779
8780         tp->fw_len = be32_to_cpu(fw_data[2]);   /* includes bss */
8781         if (tp->fw_len < (tp->fw->size - 12)) {
8782                 netdev_err(tp->dev, "bogus length %d in \"%s\"\n",
8783                            tp->fw_len, tp->fw_needed);
8784                 release_firmware(tp->fw);
8785                 tp->fw = NULL;
8786                 return -EINVAL;
8787         }
8788
8789         /* We no longer need firmware; we have it. */
8790         tp->fw_needed = NULL;
8791         return 0;
8792 }
8793
8794 static bool tg3_enable_msix(struct tg3 *tp)
8795 {
8796         int i, rc, cpus = num_online_cpus();
8797         struct msix_entry msix_ent[tp->irq_max];
8798
8799         if (cpus == 1)
8800                 /* Just fallback to the simpler MSI mode. */
8801                 return false;
8802
8803         /*
8804          * We want as many rx rings enabled as there are cpus.
8805          * The first MSIX vector only deals with link interrupts, etc,
8806          * so we add one to the number of vectors we are requesting.
8807          */
8808         tp->irq_cnt = min_t(unsigned, cpus + 1, tp->irq_max);
8809
8810         for (i = 0; i < tp->irq_max; i++) {
8811                 msix_ent[i].entry  = i;
8812                 msix_ent[i].vector = 0;
8813         }
8814
8815         rc = pci_enable_msix(tp->pdev, msix_ent, tp->irq_cnt);
8816         if (rc < 0) {
8817                 return false;
8818         } else if (rc != 0) {
8819                 if (pci_enable_msix(tp->pdev, msix_ent, rc))
8820                         return false;
8821                 netdev_notice(tp->dev, "Requested %d MSI-X vectors, received %d\n",
8822                               tp->irq_cnt, rc);
8823                 tp->irq_cnt = rc;
8824         }
8825
8826         for (i = 0; i < tp->irq_max; i++)
8827                 tp->napi[i].irq_vec = msix_ent[i].vector;
8828
8829         tp->dev->real_num_tx_queues = 1;
8830         if (tp->irq_cnt > 1)
8831                 tp->tg3_flags3 |= TG3_FLG3_ENABLE_RSS;
8832
8833         return true;
8834 }
8835
8836 static void tg3_ints_init(struct tg3 *tp)
8837 {
8838         if ((tp->tg3_flags & TG3_FLAG_SUPPORT_MSI_OR_MSIX) &&
8839             !(tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)) {
8840                 /* All MSI supporting chips should support tagged
8841                  * status.  Assert that this is the case.
8842                  */
8843                 netdev_warn(tp->dev,
8844                             "MSI without TAGGED_STATUS? Not using MSI\n");
8845                 goto defcfg;
8846         }
8847
8848         if ((tp->tg3_flags & TG3_FLAG_SUPPORT_MSIX) && tg3_enable_msix(tp))
8849                 tp->tg3_flags2 |= TG3_FLG2_USING_MSIX;
8850         else if ((tp->tg3_flags & TG3_FLAG_SUPPORT_MSI) &&
8851                  pci_enable_msi(tp->pdev) == 0)
8852                 tp->tg3_flags2 |= TG3_FLG2_USING_MSI;
8853
8854         if (tp->tg3_flags2 & TG3_FLG2_USING_MSI_OR_MSIX) {
8855                 u32 msi_mode = tr32(MSGINT_MODE);
8856                 if (tp->tg3_flags2 & TG3_FLG2_USING_MSIX)
8857                         msi_mode |= MSGINT_MODE_MULTIVEC_EN;
8858                 tw32(MSGINT_MODE, msi_mode | MSGINT_MODE_ENABLE);
8859         }
8860 defcfg:
8861         if (!(tp->tg3_flags2 & TG3_FLG2_USING_MSIX)) {
8862                 tp->irq_cnt = 1;
8863                 tp->napi[0].irq_vec = tp->pdev->irq;
8864                 tp->dev->real_num_tx_queues = 1;
8865         }
8866 }
8867
8868 static void tg3_ints_fini(struct tg3 *tp)
8869 {
8870         if (tp->tg3_flags2 & TG3_FLG2_USING_MSIX)
8871                 pci_disable_msix(tp->pdev);
8872         else if (tp->tg3_flags2 & TG3_FLG2_USING_MSI)
8873                 pci_disable_msi(tp->pdev);
8874         tp->tg3_flags2 &= ~TG3_FLG2_USING_MSI_OR_MSIX;
8875         tp->tg3_flags3 &= ~(TG3_FLG3_ENABLE_RSS | TG3_FLG3_ENABLE_TSS);
8876 }
8877
8878 static int tg3_open(struct net_device *dev)
8879 {
8880         struct tg3 *tp = netdev_priv(dev);
8881         int i, err;
8882
8883         if (tp->fw_needed) {
8884                 err = tg3_request_firmware(tp);
8885                 if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0) {
8886                         if (err)
8887                                 return err;
8888                 } else if (err) {
8889                         netdev_warn(tp->dev, "TSO capability disabled\n");
8890                         tp->tg3_flags2 &= ~TG3_FLG2_TSO_CAPABLE;
8891                 } else if (!(tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE)) {
8892                         netdev_notice(tp->dev, "TSO capability restored\n");
8893                         tp->tg3_flags2 |= TG3_FLG2_TSO_CAPABLE;
8894                 }
8895         }
8896
8897         netif_carrier_off(tp->dev);
8898
8899         err = tg3_set_power_state(tp, PCI_D0);
8900         if (err)
8901                 return err;
8902
8903         tg3_full_lock(tp, 0);
8904
8905         tg3_disable_ints(tp);
8906         tp->tg3_flags &= ~TG3_FLAG_INIT_COMPLETE;
8907
8908         tg3_full_unlock(tp);
8909
8910         /*
8911          * Setup interrupts first so we know how
8912          * many NAPI resources to allocate
8913          */
8914         tg3_ints_init(tp);
8915
8916         /* The placement of this call is tied
8917          * to the setup and use of Host TX descriptors.
8918          */
8919         err = tg3_alloc_consistent(tp);
8920         if (err)
8921                 goto err_out1;
8922
8923         tg3_napi_enable(tp);
8924
8925         for (i = 0; i < tp->irq_cnt; i++) {
8926                 struct tg3_napi *tnapi = &tp->napi[i];
8927                 err = tg3_request_irq(tp, i);
8928                 if (err) {
8929                         for (i--; i >= 0; i--)
8930                                 free_irq(tnapi->irq_vec, tnapi);
8931                         break;
8932                 }
8933         }
8934
8935         if (err)
8936                 goto err_out2;
8937
8938         tg3_full_lock(tp, 0);
8939
8940         err = tg3_init_hw(tp, 1);
8941         if (err) {
8942                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
8943                 tg3_free_rings(tp);
8944         } else {
8945                 if (tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)
8946                         tp->timer_offset = HZ;
8947                 else
8948                         tp->timer_offset = HZ / 10;
8949
8950                 BUG_ON(tp->timer_offset > HZ);
8951                 tp->timer_counter = tp->timer_multiplier =
8952                         (HZ / tp->timer_offset);
8953                 tp->asf_counter = tp->asf_multiplier =
8954                         ((HZ / tp->timer_offset) * 2);
8955
8956                 init_timer(&tp->timer);
8957                 tp->timer.expires = jiffies + tp->timer_offset;
8958                 tp->timer.data = (unsigned long) tp;
8959                 tp->timer.function = tg3_timer;
8960         }
8961
8962         tg3_full_unlock(tp);
8963
8964         if (err)
8965                 goto err_out3;
8966
8967         if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
8968                 err = tg3_test_msi(tp);
8969
8970                 if (err) {
8971                         tg3_full_lock(tp, 0);
8972                         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
8973                         tg3_free_rings(tp);
8974                         tg3_full_unlock(tp);
8975
8976                         goto err_out2;
8977                 }
8978
8979                 if (!(tp->tg3_flags3 & TG3_FLG3_5717_PLUS) &&
8980                     (tp->tg3_flags2 & TG3_FLG2_USING_MSI)) {
8981                         u32 val = tr32(PCIE_TRANSACTION_CFG);
8982
8983                         tw32(PCIE_TRANSACTION_CFG,
8984                              val | PCIE_TRANS_CFG_1SHOT_MSI);
8985                 }
8986         }
8987
8988         tg3_phy_start(tp);
8989
8990         tg3_full_lock(tp, 0);
8991
8992         add_timer(&tp->timer);
8993         tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
8994         tg3_enable_ints(tp);
8995
8996         tg3_full_unlock(tp);
8997
8998         netif_tx_start_all_queues(dev);
8999
9000         return 0;
9001
9002 err_out3:
9003         for (i = tp->irq_cnt - 1; i >= 0; i--) {
9004                 struct tg3_napi *tnapi = &tp->napi[i];
9005                 free_irq(tnapi->irq_vec, tnapi);
9006         }
9007
9008 err_out2:
9009         tg3_napi_disable(tp);
9010         tg3_free_consistent(tp);
9011
9012 err_out1:
9013         tg3_ints_fini(tp);
9014         return err;
9015 }
9016
9017 static struct rtnl_link_stats64 *tg3_get_stats64(struct net_device *,
9018                                                  struct rtnl_link_stats64 *);
9019 static struct tg3_ethtool_stats *tg3_get_estats(struct tg3 *);
9020
9021 static int tg3_close(struct net_device *dev)
9022 {
9023         int i;
9024         struct tg3 *tp = netdev_priv(dev);
9025
9026         tg3_napi_disable(tp);
9027         cancel_work_sync(&tp->reset_task);
9028
9029         netif_tx_stop_all_queues(dev);
9030
9031         del_timer_sync(&tp->timer);
9032
9033         tg3_phy_stop(tp);
9034
9035         tg3_full_lock(tp, 1);
9036
9037         tg3_disable_ints(tp);
9038
9039         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
9040         tg3_free_rings(tp);
9041         tp->tg3_flags &= ~TG3_FLAG_INIT_COMPLETE;
9042
9043         tg3_full_unlock(tp);
9044
9045         for (i = tp->irq_cnt - 1; i >= 0; i--) {
9046                 struct tg3_napi *tnapi = &tp->napi[i];
9047                 free_irq(tnapi->irq_vec, tnapi);
9048         }
9049
9050         tg3_ints_fini(tp);
9051
9052         tg3_get_stats64(tp->dev, &tp->net_stats_prev);
9053
9054         memcpy(&tp->estats_prev, tg3_get_estats(tp),
9055                sizeof(tp->estats_prev));
9056
9057         tg3_free_consistent(tp);
9058
9059         tg3_set_power_state(tp, PCI_D3hot);
9060
9061         netif_carrier_off(tp->dev);
9062
9063         return 0;
9064 }
9065
9066 static inline u64 get_stat64(tg3_stat64_t *val)
9067 {
9068        return ((u64)val->high << 32) | ((u64)val->low);
9069 }
9070
9071 static u64 calc_crc_errors(struct tg3 *tp)
9072 {
9073         struct tg3_hw_stats *hw_stats = tp->hw_stats;
9074
9075         if (!(tp->phy_flags & TG3_PHYFLG_PHY_SERDES) &&
9076             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
9077              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)) {
9078                 u32 val;
9079
9080                 spin_lock_bh(&tp->lock);
9081                 if (!tg3_readphy(tp, MII_TG3_TEST1, &val)) {
9082                         tg3_writephy(tp, MII_TG3_TEST1,
9083                                      val | MII_TG3_TEST1_CRC_EN);
9084                         tg3_readphy(tp, MII_TG3_RXR_COUNTERS, &val);
9085                 } else
9086                         val = 0;
9087                 spin_unlock_bh(&tp->lock);
9088
9089                 tp->phy_crc_errors += val;
9090
9091                 return tp->phy_crc_errors;
9092         }
9093
9094         return get_stat64(&hw_stats->rx_fcs_errors);
9095 }
9096
9097 #define ESTAT_ADD(member) \
9098         estats->member =        old_estats->member + \
9099                                 get_stat64(&hw_stats->member)
9100
9101 static struct tg3_ethtool_stats *tg3_get_estats(struct tg3 *tp)
9102 {
9103         struct tg3_ethtool_stats *estats = &tp->estats;
9104         struct tg3_ethtool_stats *old_estats = &tp->estats_prev;
9105         struct tg3_hw_stats *hw_stats = tp->hw_stats;
9106
9107         if (!hw_stats)
9108                 return old_estats;
9109
9110         ESTAT_ADD(rx_octets);
9111         ESTAT_ADD(rx_fragments);
9112         ESTAT_ADD(rx_ucast_packets);
9113         ESTAT_ADD(rx_mcast_packets);
9114         ESTAT_ADD(rx_bcast_packets);
9115         ESTAT_ADD(rx_fcs_errors);
9116         ESTAT_ADD(rx_align_errors);
9117         ESTAT_ADD(rx_xon_pause_rcvd);
9118         ESTAT_ADD(rx_xoff_pause_rcvd);
9119         ESTAT_ADD(rx_mac_ctrl_rcvd);
9120         ESTAT_ADD(rx_xoff_entered);
9121         ESTAT_ADD(rx_frame_too_long_errors);
9122         ESTAT_ADD(rx_jabbers);
9123         ESTAT_ADD(rx_undersize_packets);
9124         ESTAT_ADD(rx_in_length_errors);
9125         ESTAT_ADD(rx_out_length_errors);
9126         ESTAT_ADD(rx_64_or_less_octet_packets);
9127         ESTAT_ADD(rx_65_to_127_octet_packets);
9128         ESTAT_ADD(rx_128_to_255_octet_packets);
9129         ESTAT_ADD(rx_256_to_511_octet_packets);
9130         ESTAT_ADD(rx_512_to_1023_octet_packets);
9131         ESTAT_ADD(rx_1024_to_1522_octet_packets);
9132         ESTAT_ADD(rx_1523_to_2047_octet_packets);
9133         ESTAT_ADD(rx_2048_to_4095_octet_packets);
9134         ESTAT_ADD(rx_4096_to_8191_octet_packets);
9135         ESTAT_ADD(rx_8192_to_9022_octet_packets);
9136
9137         ESTAT_ADD(tx_octets);
9138         ESTAT_ADD(tx_collisions);
9139         ESTAT_ADD(tx_xon_sent);
9140         ESTAT_ADD(tx_xoff_sent);
9141         ESTAT_ADD(tx_flow_control);
9142         ESTAT_ADD(tx_mac_errors);
9143         ESTAT_ADD(tx_single_collisions);
9144         ESTAT_ADD(tx_mult_collisions);
9145         ESTAT_ADD(tx_deferred);
9146         ESTAT_ADD(tx_excessive_collisions);
9147         ESTAT_ADD(tx_late_collisions);
9148         ESTAT_ADD(tx_collide_2times);
9149         ESTAT_ADD(tx_collide_3times);
9150         ESTAT_ADD(tx_collide_4times);
9151         ESTAT_ADD(tx_collide_5times);
9152         ESTAT_ADD(tx_collide_6times);
9153         ESTAT_ADD(tx_collide_7times);
9154         ESTAT_ADD(tx_collide_8times);
9155         ESTAT_ADD(tx_collide_9times);
9156         ESTAT_ADD(tx_collide_10times);
9157         ESTAT_ADD(tx_collide_11times);
9158         ESTAT_ADD(tx_collide_12times);
9159         ESTAT_ADD(tx_collide_13times);
9160         ESTAT_ADD(tx_collide_14times);
9161         ESTAT_ADD(tx_collide_15times);
9162         ESTAT_ADD(tx_ucast_packets);
9163         ESTAT_ADD(tx_mcast_packets);
9164         ESTAT_ADD(tx_bcast_packets);
9165         ESTAT_ADD(tx_carrier_sense_errors);
9166         ESTAT_ADD(tx_discards);
9167         ESTAT_ADD(tx_errors);
9168
9169         ESTAT_ADD(dma_writeq_full);
9170         ESTAT_ADD(dma_write_prioq_full);
9171         ESTAT_ADD(rxbds_empty);
9172         ESTAT_ADD(rx_discards);
9173         ESTAT_ADD(rx_errors);
9174         ESTAT_ADD(rx_threshold_hit);
9175
9176         ESTAT_ADD(dma_readq_full);
9177         ESTAT_ADD(dma_read_prioq_full);
9178         ESTAT_ADD(tx_comp_queue_full);
9179
9180         ESTAT_ADD(ring_set_send_prod_index);
9181         ESTAT_ADD(ring_status_update);
9182         ESTAT_ADD(nic_irqs);
9183         ESTAT_ADD(nic_avoided_irqs);
9184         ESTAT_ADD(nic_tx_threshold_hit);
9185
9186         return estats;
9187 }
9188
9189 static struct rtnl_link_stats64 *tg3_get_stats64(struct net_device *dev,
9190                                                  struct rtnl_link_stats64 *stats)
9191 {
9192         struct tg3 *tp = netdev_priv(dev);
9193         struct rtnl_link_stats64 *old_stats = &tp->net_stats_prev;
9194         struct tg3_hw_stats *hw_stats = tp->hw_stats;
9195
9196         if (!hw_stats)
9197                 return old_stats;
9198
9199         stats->rx_packets = old_stats->rx_packets +
9200                 get_stat64(&hw_stats->rx_ucast_packets) +
9201                 get_stat64(&hw_stats->rx_mcast_packets) +
9202                 get_stat64(&hw_stats->rx_bcast_packets);
9203
9204         stats->tx_packets = old_stats->tx_packets +
9205                 get_stat64(&hw_stats->tx_ucast_packets) +
9206                 get_stat64(&hw_stats->tx_mcast_packets) +
9207                 get_stat64(&hw_stats->tx_bcast_packets);
9208
9209         stats->rx_bytes = old_stats->rx_bytes +
9210                 get_stat64(&hw_stats->rx_octets);
9211         stats->tx_bytes = old_stats->tx_bytes +
9212                 get_stat64(&hw_stats->tx_octets);
9213
9214         stats->rx_errors = old_stats->rx_errors +
9215                 get_stat64(&hw_stats->rx_errors);
9216         stats->tx_errors = old_stats->tx_errors +
9217                 get_stat64(&hw_stats->tx_errors) +
9218                 get_stat64(&hw_stats->tx_mac_errors) +
9219                 get_stat64(&hw_stats->tx_carrier_sense_errors) +
9220                 get_stat64(&hw_stats->tx_discards);
9221
9222         stats->multicast = old_stats->multicast +
9223                 get_stat64(&hw_stats->rx_mcast_packets);
9224         stats->collisions = old_stats->collisions +
9225                 get_stat64(&hw_stats->tx_collisions);
9226
9227         stats->rx_length_errors = old_stats->rx_length_errors +
9228                 get_stat64(&hw_stats->rx_frame_too_long_errors) +
9229                 get_stat64(&hw_stats->rx_undersize_packets);
9230
9231         stats->rx_over_errors = old_stats->rx_over_errors +
9232                 get_stat64(&hw_stats->rxbds_empty);
9233         stats->rx_frame_errors = old_stats->rx_frame_errors +
9234                 get_stat64(&hw_stats->rx_align_errors);
9235         stats->tx_aborted_errors = old_stats->tx_aborted_errors +
9236                 get_stat64(&hw_stats->tx_discards);
9237         stats->tx_carrier_errors = old_stats->tx_carrier_errors +
9238                 get_stat64(&hw_stats->tx_carrier_sense_errors);
9239
9240         stats->rx_crc_errors = old_stats->rx_crc_errors +
9241                 calc_crc_errors(tp);
9242
9243         stats->rx_missed_errors = old_stats->rx_missed_errors +
9244                 get_stat64(&hw_stats->rx_discards);
9245
9246         return stats;
9247 }
9248
9249 static inline u32 calc_crc(unsigned char *buf, int len)
9250 {
9251         u32 reg;
9252         u32 tmp;
9253         int j, k;
9254
9255         reg = 0xffffffff;
9256
9257         for (j = 0; j < len; j++) {
9258                 reg ^= buf[j];
9259
9260                 for (k = 0; k < 8; k++) {
9261                         tmp = reg & 0x01;
9262
9263                         reg >>= 1;
9264
9265                         if (tmp)
9266                                 reg ^= 0xedb88320;
9267                 }
9268         }
9269
9270         return ~reg;
9271 }
9272
9273 static void tg3_set_multi(struct tg3 *tp, unsigned int accept_all)
9274 {
9275         /* accept or reject all multicast frames */
9276         tw32(MAC_HASH_REG_0, accept_all ? 0xffffffff : 0);
9277         tw32(MAC_HASH_REG_1, accept_all ? 0xffffffff : 0);
9278         tw32(MAC_HASH_REG_2, accept_all ? 0xffffffff : 0);
9279         tw32(MAC_HASH_REG_3, accept_all ? 0xffffffff : 0);
9280 }
9281
9282 static void __tg3_set_rx_mode(struct net_device *dev)
9283 {
9284         struct tg3 *tp = netdev_priv(dev);
9285         u32 rx_mode;
9286
9287         rx_mode = tp->rx_mode & ~(RX_MODE_PROMISC |
9288                                   RX_MODE_KEEP_VLAN_TAG);
9289
9290         /* When ASF is in use, we always keep the RX_MODE_KEEP_VLAN_TAG
9291          * flag clear.
9292          */
9293 #if TG3_VLAN_TAG_USED
9294         if (!tp->vlgrp &&
9295             !(tp->tg3_flags & TG3_FLAG_ENABLE_ASF))
9296                 rx_mode |= RX_MODE_KEEP_VLAN_TAG;
9297 #else
9298         /* By definition, VLAN is disabled always in this
9299          * case.
9300          */
9301         if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF))
9302                 rx_mode |= RX_MODE_KEEP_VLAN_TAG;
9303 #endif
9304
9305         if (dev->flags & IFF_PROMISC) {
9306                 /* Promiscuous mode. */
9307                 rx_mode |= RX_MODE_PROMISC;
9308         } else if (dev->flags & IFF_ALLMULTI) {
9309                 /* Accept all multicast. */
9310                 tg3_set_multi(tp, 1);
9311         } else if (netdev_mc_empty(dev)) {
9312                 /* Reject all multicast. */
9313                 tg3_set_multi(tp, 0);
9314         } else {
9315                 /* Accept one or more multicast(s). */
9316                 struct netdev_hw_addr *ha;
9317                 u32 mc_filter[4] = { 0, };
9318                 u32 regidx;
9319                 u32 bit;
9320                 u32 crc;
9321
9322                 netdev_for_each_mc_addr(ha, dev) {
9323                         crc = calc_crc(ha->addr, ETH_ALEN);
9324                         bit = ~crc & 0x7f;
9325                         regidx = (bit & 0x60) >> 5;
9326                         bit &= 0x1f;
9327                         mc_filter[regidx] |= (1 << bit);
9328                 }
9329
9330                 tw32(MAC_HASH_REG_0, mc_filter[0]);
9331                 tw32(MAC_HASH_REG_1, mc_filter[1]);
9332                 tw32(MAC_HASH_REG_2, mc_filter[2]);
9333                 tw32(MAC_HASH_REG_3, mc_filter[3]);
9334         }
9335
9336         if (rx_mode != tp->rx_mode) {
9337                 tp->rx_mode = rx_mode;
9338                 tw32_f(MAC_RX_MODE, rx_mode);
9339                 udelay(10);
9340         }
9341 }
9342
9343 static void tg3_set_rx_mode(struct net_device *dev)
9344 {
9345         struct tg3 *tp = netdev_priv(dev);
9346
9347         if (!netif_running(dev))
9348                 return;
9349
9350         tg3_full_lock(tp, 0);
9351         __tg3_set_rx_mode(dev);
9352         tg3_full_unlock(tp);
9353 }
9354
9355 #define TG3_REGDUMP_LEN         (32 * 1024)
9356
9357 static int tg3_get_regs_len(struct net_device *dev)
9358 {
9359         return TG3_REGDUMP_LEN;
9360 }
9361
9362 static void tg3_get_regs(struct net_device *dev,
9363                 struct ethtool_regs *regs, void *_p)
9364 {
9365         u32 *p = _p;
9366         struct tg3 *tp = netdev_priv(dev);
9367         u8 *orig_p = _p;
9368         int i;
9369
9370         regs->version = 0;
9371
9372         memset(p, 0, TG3_REGDUMP_LEN);
9373
9374         if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)
9375                 return;
9376
9377         tg3_full_lock(tp, 0);
9378
9379 #define __GET_REG32(reg)        (*(p)++ = tr32(reg))
9380 #define GET_REG32_LOOP(base, len)               \
9381 do {    p = (u32 *)(orig_p + (base));           \
9382         for (i = 0; i < len; i += 4)            \
9383                 __GET_REG32((base) + i);        \
9384 } while (0)
9385 #define GET_REG32_1(reg)                        \
9386 do {    p = (u32 *)(orig_p + (reg));            \
9387         __GET_REG32((reg));                     \
9388 } while (0)
9389
9390         GET_REG32_LOOP(TG3PCI_VENDOR, 0xb0);
9391         GET_REG32_LOOP(MAILBOX_INTERRUPT_0, 0x200);
9392         GET_REG32_LOOP(MAC_MODE, 0x4f0);
9393         GET_REG32_LOOP(SNDDATAI_MODE, 0xe0);
9394         GET_REG32_1(SNDDATAC_MODE);
9395         GET_REG32_LOOP(SNDBDS_MODE, 0x80);
9396         GET_REG32_LOOP(SNDBDI_MODE, 0x48);
9397         GET_REG32_1(SNDBDC_MODE);
9398         GET_REG32_LOOP(RCVLPC_MODE, 0x20);
9399         GET_REG32_LOOP(RCVLPC_SELLST_BASE, 0x15c);
9400         GET_REG32_LOOP(RCVDBDI_MODE, 0x0c);
9401         GET_REG32_LOOP(RCVDBDI_JUMBO_BD, 0x3c);
9402         GET_REG32_LOOP(RCVDBDI_BD_PROD_IDX_0, 0x44);
9403         GET_REG32_1(RCVDCC_MODE);
9404         GET_REG32_LOOP(RCVBDI_MODE, 0x20);
9405         GET_REG32_LOOP(RCVCC_MODE, 0x14);
9406         GET_REG32_LOOP(RCVLSC_MODE, 0x08);
9407         GET_REG32_1(MBFREE_MODE);
9408         GET_REG32_LOOP(HOSTCC_MODE, 0x100);
9409         GET_REG32_LOOP(MEMARB_MODE, 0x10);
9410         GET_REG32_LOOP(BUFMGR_MODE, 0x58);
9411         GET_REG32_LOOP(RDMAC_MODE, 0x08);
9412         GET_REG32_LOOP(WDMAC_MODE, 0x08);
9413         GET_REG32_1(RX_CPU_MODE);
9414         GET_REG32_1(RX_CPU_STATE);
9415         GET_REG32_1(RX_CPU_PGMCTR);
9416         GET_REG32_1(RX_CPU_HWBKPT);
9417         GET_REG32_1(TX_CPU_MODE);
9418         GET_REG32_1(TX_CPU_STATE);
9419         GET_REG32_1(TX_CPU_PGMCTR);
9420         GET_REG32_LOOP(GRCMBOX_INTERRUPT_0, 0x110);
9421         GET_REG32_LOOP(FTQ_RESET, 0x120);
9422         GET_REG32_LOOP(MSGINT_MODE, 0x0c);
9423         GET_REG32_1(DMAC_MODE);
9424         GET_REG32_LOOP(GRC_MODE, 0x4c);
9425         if (tp->tg3_flags & TG3_FLAG_NVRAM)
9426                 GET_REG32_LOOP(NVRAM_CMD, 0x24);
9427
9428 #undef __GET_REG32
9429 #undef GET_REG32_LOOP
9430 #undef GET_REG32_1
9431
9432         tg3_full_unlock(tp);
9433 }
9434
9435 static int tg3_get_eeprom_len(struct net_device *dev)
9436 {
9437         struct tg3 *tp = netdev_priv(dev);
9438
9439         return tp->nvram_size;
9440 }
9441
9442 static int tg3_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, u8 *data)
9443 {
9444         struct tg3 *tp = netdev_priv(dev);
9445         int ret;
9446         u8  *pd;
9447         u32 i, offset, len, b_offset, b_count;
9448         __be32 val;
9449
9450         if (tp->tg3_flags3 & TG3_FLG3_NO_NVRAM)
9451                 return -EINVAL;
9452
9453         if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)
9454                 return -EAGAIN;
9455
9456         offset = eeprom->offset;
9457         len = eeprom->len;
9458         eeprom->len = 0;
9459
9460         eeprom->magic = TG3_EEPROM_MAGIC;
9461
9462         if (offset & 3) {
9463                 /* adjustments to start on required 4 byte boundary */
9464                 b_offset = offset & 3;
9465                 b_count = 4 - b_offset;
9466                 if (b_count > len) {
9467                         /* i.e. offset=1 len=2 */
9468                         b_count = len;
9469                 }
9470                 ret = tg3_nvram_read_be32(tp, offset-b_offset, &val);
9471                 if (ret)
9472                         return ret;
9473                 memcpy(data, ((char *)&val) + b_offset, b_count);
9474                 len -= b_count;
9475                 offset += b_count;
9476                 eeprom->len += b_count;
9477         }
9478
9479         /* read bytes upto the last 4 byte boundary */
9480         pd = &data[eeprom->len];
9481         for (i = 0; i < (len - (len & 3)); i += 4) {
9482                 ret = tg3_nvram_read_be32(tp, offset + i, &val);
9483                 if (ret) {
9484                         eeprom->len += i;
9485                         return ret;
9486                 }
9487                 memcpy(pd + i, &val, 4);
9488         }
9489         eeprom->len += i;
9490
9491         if (len & 3) {
9492                 /* read last bytes not ending on 4 byte boundary */
9493                 pd = &data[eeprom->len];
9494                 b_count = len & 3;
9495                 b_offset = offset + len - b_count;
9496                 ret = tg3_nvram_read_be32(tp, b_offset, &val);
9497                 if (ret)
9498                         return ret;
9499                 memcpy(pd, &val, b_count);
9500                 eeprom->len += b_count;
9501         }
9502         return 0;
9503 }
9504
9505 static int tg3_nvram_write_block(struct tg3 *tp, u32 offset, u32 len, u8 *buf);
9506
9507 static int tg3_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, u8 *data)
9508 {
9509         struct tg3 *tp = netdev_priv(dev);
9510         int ret;
9511         u32 offset, len, b_offset, odd_len;
9512         u8 *buf;
9513         __be32 start, end;
9514
9515         if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)
9516                 return -EAGAIN;
9517
9518         if ((tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) ||
9519             eeprom->magic != TG3_EEPROM_MAGIC)
9520                 return -EINVAL;
9521
9522         offset = eeprom->offset;
9523         len = eeprom->len;
9524
9525         if ((b_offset = (offset & 3))) {
9526                 /* adjustments to start on required 4 byte boundary */
9527                 ret = tg3_nvram_read_be32(tp, offset-b_offset, &start);
9528                 if (ret)
9529                         return ret;
9530                 len += b_offset;
9531                 offset &= ~3;
9532                 if (len < 4)
9533                         len = 4;
9534         }
9535
9536         odd_len = 0;
9537         if (len & 3) {
9538                 /* adjustments to end on required 4 byte boundary */
9539                 odd_len = 1;
9540                 len = (len + 3) & ~3;
9541                 ret = tg3_nvram_read_be32(tp, offset+len-4, &end);
9542                 if (ret)
9543                         return ret;
9544         }
9545
9546         buf = data;
9547         if (b_offset || odd_len) {
9548                 buf = kmalloc(len, GFP_KERNEL);
9549                 if (!buf)
9550                         return -ENOMEM;
9551                 if (b_offset)
9552                         memcpy(buf, &start, 4);
9553                 if (odd_len)
9554                         memcpy(buf+len-4, &end, 4);
9555                 memcpy(buf + b_offset, data, eeprom->len);
9556         }
9557
9558         ret = tg3_nvram_write_block(tp, offset, len, buf);
9559
9560         if (buf != data)
9561                 kfree(buf);
9562
9563         return ret;
9564 }
9565
9566 static int tg3_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
9567 {
9568         struct tg3 *tp = netdev_priv(dev);
9569
9570         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
9571                 struct phy_device *phydev;
9572                 if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
9573                         return -EAGAIN;
9574                 phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
9575                 return phy_ethtool_gset(phydev, cmd);
9576         }
9577
9578         cmd->supported = (SUPPORTED_Autoneg);
9579
9580         if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY))
9581                 cmd->supported |= (SUPPORTED_1000baseT_Half |
9582                                    SUPPORTED_1000baseT_Full);
9583
9584         if (!(tp->phy_flags & TG3_PHYFLG_ANY_SERDES)) {
9585                 cmd->supported |= (SUPPORTED_100baseT_Half |
9586                                   SUPPORTED_100baseT_Full |
9587                                   SUPPORTED_10baseT_Half |
9588                                   SUPPORTED_10baseT_Full |
9589                                   SUPPORTED_TP);
9590                 cmd->port = PORT_TP;
9591         } else {
9592                 cmd->supported |= SUPPORTED_FIBRE;
9593                 cmd->port = PORT_FIBRE;
9594         }
9595
9596         cmd->advertising = tp->link_config.advertising;
9597         if (netif_running(dev)) {
9598                 cmd->speed = tp->link_config.active_speed;
9599                 cmd->duplex = tp->link_config.active_duplex;
9600         }
9601         cmd->phy_address = tp->phy_addr;
9602         cmd->transceiver = XCVR_INTERNAL;
9603         cmd->autoneg = tp->link_config.autoneg;
9604         cmd->maxtxpkt = 0;
9605         cmd->maxrxpkt = 0;
9606         return 0;
9607 }
9608
9609 static int tg3_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
9610 {
9611         struct tg3 *tp = netdev_priv(dev);
9612
9613         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
9614                 struct phy_device *phydev;
9615                 if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
9616                         return -EAGAIN;
9617                 phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
9618                 return phy_ethtool_sset(phydev, cmd);
9619         }
9620
9621         if (cmd->autoneg != AUTONEG_ENABLE &&
9622             cmd->autoneg != AUTONEG_DISABLE)
9623                 return -EINVAL;
9624
9625         if (cmd->autoneg == AUTONEG_DISABLE &&
9626             cmd->duplex != DUPLEX_FULL &&
9627             cmd->duplex != DUPLEX_HALF)
9628                 return -EINVAL;
9629
9630         if (cmd->autoneg == AUTONEG_ENABLE) {
9631                 u32 mask = ADVERTISED_Autoneg |
9632                            ADVERTISED_Pause |
9633                            ADVERTISED_Asym_Pause;
9634
9635                 if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY))
9636                         mask |= ADVERTISED_1000baseT_Half |
9637                                 ADVERTISED_1000baseT_Full;
9638
9639                 if (!(tp->phy_flags & TG3_PHYFLG_ANY_SERDES))
9640                         mask |= ADVERTISED_100baseT_Half |
9641                                 ADVERTISED_100baseT_Full |
9642                                 ADVERTISED_10baseT_Half |
9643                                 ADVERTISED_10baseT_Full |
9644                                 ADVERTISED_TP;
9645                 else
9646                         mask |= ADVERTISED_FIBRE;
9647
9648                 if (cmd->advertising & ~mask)
9649                         return -EINVAL;
9650
9651                 mask &= (ADVERTISED_1000baseT_Half |
9652                          ADVERTISED_1000baseT_Full |
9653                          ADVERTISED_100baseT_Half |
9654                          ADVERTISED_100baseT_Full |
9655                          ADVERTISED_10baseT_Half |
9656                          ADVERTISED_10baseT_Full);
9657
9658                 cmd->advertising &= mask;
9659         } else {
9660                 if (tp->phy_flags & TG3_PHYFLG_ANY_SERDES) {
9661                         if (cmd->speed != SPEED_1000)
9662                                 return -EINVAL;
9663
9664                         if (cmd->duplex != DUPLEX_FULL)
9665                                 return -EINVAL;
9666                 } else {
9667                         if (cmd->speed != SPEED_100 &&
9668                             cmd->speed != SPEED_10)
9669                                 return -EINVAL;
9670                 }
9671         }
9672
9673         tg3_full_lock(tp, 0);
9674
9675         tp->link_config.autoneg = cmd->autoneg;
9676         if (cmd->autoneg == AUTONEG_ENABLE) {
9677                 tp->link_config.advertising = (cmd->advertising |
9678                                               ADVERTISED_Autoneg);
9679                 tp->link_config.speed = SPEED_INVALID;
9680                 tp->link_config.duplex = DUPLEX_INVALID;
9681         } else {
9682                 tp->link_config.advertising = 0;
9683                 tp->link_config.speed = cmd->speed;
9684                 tp->link_config.duplex = cmd->duplex;
9685         }
9686
9687         tp->link_config.orig_speed = tp->link_config.speed;
9688         tp->link_config.orig_duplex = tp->link_config.duplex;
9689         tp->link_config.orig_autoneg = tp->link_config.autoneg;
9690
9691         if (netif_running(dev))
9692                 tg3_setup_phy(tp, 1);
9693
9694         tg3_full_unlock(tp);
9695
9696         return 0;
9697 }
9698
9699 static void tg3_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
9700 {
9701         struct tg3 *tp = netdev_priv(dev);
9702
9703         strcpy(info->driver, DRV_MODULE_NAME);
9704         strcpy(info->version, DRV_MODULE_VERSION);
9705         strcpy(info->fw_version, tp->fw_ver);
9706         strcpy(info->bus_info, pci_name(tp->pdev));
9707 }
9708
9709 static void tg3_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
9710 {
9711         struct tg3 *tp = netdev_priv(dev);
9712
9713         if ((tp->tg3_flags & TG3_FLAG_WOL_CAP) &&
9714             device_can_wakeup(&tp->pdev->dev))
9715                 wol->supported = WAKE_MAGIC;
9716         else
9717                 wol->supported = 0;
9718         wol->wolopts = 0;
9719         if ((tp->tg3_flags & TG3_FLAG_WOL_ENABLE) &&
9720             device_can_wakeup(&tp->pdev->dev))
9721                 wol->wolopts = WAKE_MAGIC;
9722         memset(&wol->sopass, 0, sizeof(wol->sopass));
9723 }
9724
9725 static int tg3_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
9726 {
9727         struct tg3 *tp = netdev_priv(dev);
9728         struct device *dp = &tp->pdev->dev;
9729
9730         if (wol->wolopts & ~WAKE_MAGIC)
9731                 return -EINVAL;
9732         if ((wol->wolopts & WAKE_MAGIC) &&
9733             !((tp->tg3_flags & TG3_FLAG_WOL_CAP) && device_can_wakeup(dp)))
9734                 return -EINVAL;
9735
9736         spin_lock_bh(&tp->lock);
9737         if (wol->wolopts & WAKE_MAGIC) {
9738                 tp->tg3_flags |= TG3_FLAG_WOL_ENABLE;
9739                 device_set_wakeup_enable(dp, true);
9740         } else {
9741                 tp->tg3_flags &= ~TG3_FLAG_WOL_ENABLE;
9742                 device_set_wakeup_enable(dp, false);
9743         }
9744         spin_unlock_bh(&tp->lock);
9745
9746         return 0;
9747 }
9748
9749 static u32 tg3_get_msglevel(struct net_device *dev)
9750 {
9751         struct tg3 *tp = netdev_priv(dev);
9752         return tp->msg_enable;
9753 }
9754
9755 static void tg3_set_msglevel(struct net_device *dev, u32 value)
9756 {
9757         struct tg3 *tp = netdev_priv(dev);
9758         tp->msg_enable = value;
9759 }
9760
9761 static int tg3_set_tso(struct net_device *dev, u32 value)
9762 {
9763         struct tg3 *tp = netdev_priv(dev);
9764
9765         if (!(tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE)) {
9766                 if (value)
9767                         return -EINVAL;
9768                 return 0;
9769         }
9770         if ((dev->features & NETIF_F_IPV6_CSUM) &&
9771             ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_2) ||
9772              (tp->tg3_flags2 & TG3_FLG2_HW_TSO_3))) {
9773                 if (value) {
9774                         dev->features |= NETIF_F_TSO6;
9775                         if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_3) ||
9776                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
9777                             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
9778                              GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) ||
9779                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
9780                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
9781                                 dev->features |= NETIF_F_TSO_ECN;
9782                 } else
9783                         dev->features &= ~(NETIF_F_TSO6 | NETIF_F_TSO_ECN);
9784         }
9785         return ethtool_op_set_tso(dev, value);
9786 }
9787
9788 static int tg3_nway_reset(struct net_device *dev)
9789 {
9790         struct tg3 *tp = netdev_priv(dev);
9791         int r;
9792
9793         if (!netif_running(dev))
9794                 return -EAGAIN;
9795
9796         if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES)
9797                 return -EINVAL;
9798
9799         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
9800                 if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
9801                         return -EAGAIN;
9802                 r = phy_start_aneg(tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR]);
9803         } else {
9804                 u32 bmcr;
9805
9806                 spin_lock_bh(&tp->lock);
9807                 r = -EINVAL;
9808                 tg3_readphy(tp, MII_BMCR, &bmcr);
9809                 if (!tg3_readphy(tp, MII_BMCR, &bmcr) &&
9810                     ((bmcr & BMCR_ANENABLE) ||
9811                      (tp->phy_flags & TG3_PHYFLG_PARALLEL_DETECT))) {
9812                         tg3_writephy(tp, MII_BMCR, bmcr | BMCR_ANRESTART |
9813                                                    BMCR_ANENABLE);
9814                         r = 0;
9815                 }
9816                 spin_unlock_bh(&tp->lock);
9817         }
9818
9819         return r;
9820 }
9821
9822 static void tg3_get_ringparam(struct net_device *dev, struct ethtool_ringparam *ering)
9823 {
9824         struct tg3 *tp = netdev_priv(dev);
9825
9826         ering->rx_max_pending = TG3_RX_RING_SIZE - 1;
9827         ering->rx_mini_max_pending = 0;
9828         if (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE)
9829                 ering->rx_jumbo_max_pending = TG3_RX_JUMBO_RING_SIZE - 1;
9830         else
9831                 ering->rx_jumbo_max_pending = 0;
9832
9833         ering->tx_max_pending = TG3_TX_RING_SIZE - 1;
9834
9835         ering->rx_pending = tp->rx_pending;
9836         ering->rx_mini_pending = 0;
9837         if (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE)
9838                 ering->rx_jumbo_pending = tp->rx_jumbo_pending;
9839         else
9840                 ering->rx_jumbo_pending = 0;
9841
9842         ering->tx_pending = tp->napi[0].tx_pending;
9843 }
9844
9845 static int tg3_set_ringparam(struct net_device *dev, struct ethtool_ringparam *ering)
9846 {
9847         struct tg3 *tp = netdev_priv(dev);
9848         int i, irq_sync = 0, err = 0;
9849
9850         if ((ering->rx_pending > TG3_RX_RING_SIZE - 1) ||
9851             (ering->rx_jumbo_pending > TG3_RX_JUMBO_RING_SIZE - 1) ||
9852             (ering->tx_pending > TG3_TX_RING_SIZE - 1) ||
9853             (ering->tx_pending <= MAX_SKB_FRAGS) ||
9854             ((tp->tg3_flags2 & TG3_FLG2_TSO_BUG) &&
9855              (ering->tx_pending <= (MAX_SKB_FRAGS * 3))))
9856                 return -EINVAL;
9857
9858         if (netif_running(dev)) {
9859                 tg3_phy_stop(tp);
9860                 tg3_netif_stop(tp);
9861                 irq_sync = 1;
9862         }
9863
9864         tg3_full_lock(tp, irq_sync);
9865
9866         tp->rx_pending = ering->rx_pending;
9867
9868         if ((tp->tg3_flags2 & TG3_FLG2_MAX_RXPEND_64) &&
9869             tp->rx_pending > 63)
9870                 tp->rx_pending = 63;
9871         tp->rx_jumbo_pending = ering->rx_jumbo_pending;
9872
9873         for (i = 0; i < TG3_IRQ_MAX_VECS; i++)
9874                 tp->napi[i].tx_pending = ering->tx_pending;
9875
9876         if (netif_running(dev)) {
9877                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
9878                 err = tg3_restart_hw(tp, 1);
9879                 if (!err)
9880                         tg3_netif_start(tp);
9881         }
9882
9883         tg3_full_unlock(tp);
9884
9885         if (irq_sync && !err)
9886                 tg3_phy_start(tp);
9887
9888         return err;
9889 }
9890
9891 static void tg3_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause)
9892 {
9893         struct tg3 *tp = netdev_priv(dev);
9894
9895         epause->autoneg = (tp->tg3_flags & TG3_FLAG_PAUSE_AUTONEG) != 0;
9896
9897         if (tp->link_config.active_flowctrl & FLOW_CTRL_RX)
9898                 epause->rx_pause = 1;
9899         else
9900                 epause->rx_pause = 0;
9901
9902         if (tp->link_config.active_flowctrl & FLOW_CTRL_TX)
9903                 epause->tx_pause = 1;
9904         else
9905                 epause->tx_pause = 0;
9906 }
9907
9908 static int tg3_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause)
9909 {
9910         struct tg3 *tp = netdev_priv(dev);
9911         int err = 0;
9912
9913         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
9914                 u32 newadv;
9915                 struct phy_device *phydev;
9916
9917                 phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
9918
9919                 if (!(phydev->supported & SUPPORTED_Pause) ||
9920                     (!(phydev->supported & SUPPORTED_Asym_Pause) &&
9921                      ((epause->rx_pause && !epause->tx_pause) ||
9922                       (!epause->rx_pause && epause->tx_pause))))
9923                         return -EINVAL;
9924
9925                 tp->link_config.flowctrl = 0;
9926                 if (epause->rx_pause) {
9927                         tp->link_config.flowctrl |= FLOW_CTRL_RX;
9928
9929                         if (epause->tx_pause) {
9930                                 tp->link_config.flowctrl |= FLOW_CTRL_TX;
9931                                 newadv = ADVERTISED_Pause;
9932                         } else
9933                                 newadv = ADVERTISED_Pause |
9934                                          ADVERTISED_Asym_Pause;
9935                 } else if (epause->tx_pause) {
9936                         tp->link_config.flowctrl |= FLOW_CTRL_TX;
9937                         newadv = ADVERTISED_Asym_Pause;
9938                 } else
9939                         newadv = 0;
9940
9941                 if (epause->autoneg)
9942                         tp->tg3_flags |= TG3_FLAG_PAUSE_AUTONEG;
9943                 else
9944                         tp->tg3_flags &= ~TG3_FLAG_PAUSE_AUTONEG;
9945
9946                 if (tp->phy_flags & TG3_PHYFLG_IS_CONNECTED) {
9947                         u32 oldadv = phydev->advertising &
9948                                      (ADVERTISED_Pause | ADVERTISED_Asym_Pause);
9949                         if (oldadv != newadv) {
9950                                 phydev->advertising &=
9951                                         ~(ADVERTISED_Pause |
9952                                           ADVERTISED_Asym_Pause);
9953                                 phydev->advertising |= newadv;
9954                                 if (phydev->autoneg) {
9955                                         /*
9956                                          * Always renegotiate the link to
9957                                          * inform our link partner of our
9958                                          * flow control settings, even if the
9959                                          * flow control is forced.  Let
9960                                          * tg3_adjust_link() do the final
9961                                          * flow control setup.
9962                                          */
9963                                         return phy_start_aneg(phydev);
9964                                 }
9965                         }
9966
9967                         if (!epause->autoneg)
9968                                 tg3_setup_flow_control(tp, 0, 0);
9969                 } else {
9970                         tp->link_config.orig_advertising &=
9971                                         ~(ADVERTISED_Pause |
9972                                           ADVERTISED_Asym_Pause);
9973                         tp->link_config.orig_advertising |= newadv;
9974                 }
9975         } else {
9976                 int irq_sync = 0;
9977
9978                 if (netif_running(dev)) {
9979                         tg3_netif_stop(tp);
9980                         irq_sync = 1;
9981                 }
9982
9983                 tg3_full_lock(tp, irq_sync);
9984
9985                 if (epause->autoneg)
9986                         tp->tg3_flags |= TG3_FLAG_PAUSE_AUTONEG;
9987                 else
9988                         tp->tg3_flags &= ~TG3_FLAG_PAUSE_AUTONEG;
9989                 if (epause->rx_pause)
9990                         tp->link_config.flowctrl |= FLOW_CTRL_RX;
9991                 else
9992                         tp->link_config.flowctrl &= ~FLOW_CTRL_RX;
9993                 if (epause->tx_pause)
9994                         tp->link_config.flowctrl |= FLOW_CTRL_TX;
9995                 else
9996                         tp->link_config.flowctrl &= ~FLOW_CTRL_TX;
9997
9998                 if (netif_running(dev)) {
9999                         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
10000                         err = tg3_restart_hw(tp, 1);
10001                         if (!err)
10002                                 tg3_netif_start(tp);
10003                 }
10004
10005                 tg3_full_unlock(tp);
10006         }
10007
10008         return err;
10009 }
10010
10011 static u32 tg3_get_rx_csum(struct net_device *dev)
10012 {
10013         struct tg3 *tp = netdev_priv(dev);
10014         return (tp->tg3_flags & TG3_FLAG_RX_CHECKSUMS) != 0;
10015 }
10016
10017 static int tg3_set_rx_csum(struct net_device *dev, u32 data)
10018 {
10019         struct tg3 *tp = netdev_priv(dev);
10020
10021         if (tp->tg3_flags & TG3_FLAG_BROKEN_CHECKSUMS) {
10022                 if (data != 0)
10023                         return -EINVAL;
10024                 return 0;
10025         }
10026
10027         spin_lock_bh(&tp->lock);
10028         if (data)
10029                 tp->tg3_flags |= TG3_FLAG_RX_CHECKSUMS;
10030         else
10031                 tp->tg3_flags &= ~TG3_FLAG_RX_CHECKSUMS;
10032         spin_unlock_bh(&tp->lock);
10033
10034         return 0;
10035 }
10036
10037 static int tg3_set_tx_csum(struct net_device *dev, u32 data)
10038 {
10039         struct tg3 *tp = netdev_priv(dev);
10040
10041         if (tp->tg3_flags & TG3_FLAG_BROKEN_CHECKSUMS) {
10042                 if (data != 0)
10043                         return -EINVAL;
10044                 return 0;
10045         }
10046
10047         if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
10048                 ethtool_op_set_tx_ipv6_csum(dev, data);
10049         else
10050                 ethtool_op_set_tx_csum(dev, data);
10051
10052         return 0;
10053 }
10054
10055 static int tg3_get_sset_count(struct net_device *dev, int sset)
10056 {
10057         switch (sset) {
10058         case ETH_SS_TEST:
10059                 return TG3_NUM_TEST;
10060         case ETH_SS_STATS:
10061                 return TG3_NUM_STATS;
10062         default:
10063                 return -EOPNOTSUPP;
10064         }
10065 }
10066
10067 static void tg3_get_strings(struct net_device *dev, u32 stringset, u8 *buf)
10068 {
10069         switch (stringset) {
10070         case ETH_SS_STATS:
10071                 memcpy(buf, &ethtool_stats_keys, sizeof(ethtool_stats_keys));
10072                 break;
10073         case ETH_SS_TEST:
10074                 memcpy(buf, &ethtool_test_keys, sizeof(ethtool_test_keys));
10075                 break;
10076         default:
10077                 WARN_ON(1);     /* we need a WARN() */
10078                 break;
10079         }
10080 }
10081
10082 static int tg3_phys_id(struct net_device *dev, u32 data)
10083 {
10084         struct tg3 *tp = netdev_priv(dev);
10085         int i;
10086
10087         if (!netif_running(tp->dev))
10088                 return -EAGAIN;
10089
10090         if (data == 0)
10091                 data = UINT_MAX / 2;
10092
10093         for (i = 0; i < (data * 2); i++) {
10094                 if ((i % 2) == 0)
10095                         tw32(MAC_LED_CTRL, LED_CTRL_LNKLED_OVERRIDE |
10096                                            LED_CTRL_1000MBPS_ON |
10097                                            LED_CTRL_100MBPS_ON |
10098                                            LED_CTRL_10MBPS_ON |
10099                                            LED_CTRL_TRAFFIC_OVERRIDE |
10100                                            LED_CTRL_TRAFFIC_BLINK |
10101                                            LED_CTRL_TRAFFIC_LED);
10102
10103                 else
10104                         tw32(MAC_LED_CTRL, LED_CTRL_LNKLED_OVERRIDE |
10105                                            LED_CTRL_TRAFFIC_OVERRIDE);
10106
10107                 if (msleep_interruptible(500))
10108                         break;
10109         }
10110         tw32(MAC_LED_CTRL, tp->led_ctrl);
10111         return 0;
10112 }
10113
10114 static void tg3_get_ethtool_stats(struct net_device *dev,
10115                                    struct ethtool_stats *estats, u64 *tmp_stats)
10116 {
10117         struct tg3 *tp = netdev_priv(dev);
10118         memcpy(tmp_stats, tg3_get_estats(tp), sizeof(tp->estats));
10119 }
10120
10121 #define NVRAM_TEST_SIZE 0x100
10122 #define NVRAM_SELFBOOT_FORMAT1_0_SIZE   0x14
10123 #define NVRAM_SELFBOOT_FORMAT1_2_SIZE   0x18
10124 #define NVRAM_SELFBOOT_FORMAT1_3_SIZE   0x1c
10125 #define NVRAM_SELFBOOT_HW_SIZE 0x20
10126 #define NVRAM_SELFBOOT_DATA_SIZE 0x1c
10127
10128 static int tg3_test_nvram(struct tg3 *tp)
10129 {
10130         u32 csum, magic;
10131         __be32 *buf;
10132         int i, j, k, err = 0, size;
10133
10134         if (tp->tg3_flags3 & TG3_FLG3_NO_NVRAM)
10135                 return 0;
10136
10137         if (tg3_nvram_read(tp, 0, &magic) != 0)
10138                 return -EIO;
10139
10140         if (magic == TG3_EEPROM_MAGIC)
10141                 size = NVRAM_TEST_SIZE;
10142         else if ((magic & TG3_EEPROM_MAGIC_FW_MSK) == TG3_EEPROM_MAGIC_FW) {
10143                 if ((magic & TG3_EEPROM_SB_FORMAT_MASK) ==
10144                     TG3_EEPROM_SB_FORMAT_1) {
10145                         switch (magic & TG3_EEPROM_SB_REVISION_MASK) {
10146                         case TG3_EEPROM_SB_REVISION_0:
10147                                 size = NVRAM_SELFBOOT_FORMAT1_0_SIZE;
10148                                 break;
10149                         case TG3_EEPROM_SB_REVISION_2:
10150                                 size = NVRAM_SELFBOOT_FORMAT1_2_SIZE;
10151                                 break;
10152                         case TG3_EEPROM_SB_REVISION_3:
10153                                 size = NVRAM_SELFBOOT_FORMAT1_3_SIZE;
10154                                 break;
10155                         default:
10156                                 return 0;
10157                         }
10158                 } else
10159                         return 0;
10160         } else if ((magic & TG3_EEPROM_MAGIC_HW_MSK) == TG3_EEPROM_MAGIC_HW)
10161                 size = NVRAM_SELFBOOT_HW_SIZE;
10162         else
10163                 return -EIO;
10164
10165         buf = kmalloc(size, GFP_KERNEL);
10166         if (buf == NULL)
10167                 return -ENOMEM;
10168
10169         err = -EIO;
10170         for (i = 0, j = 0; i < size; i += 4, j++) {
10171                 err = tg3_nvram_read_be32(tp, i, &buf[j]);
10172                 if (err)
10173                         break;
10174         }
10175         if (i < size)
10176                 goto out;
10177
10178         /* Selfboot format */
10179         magic = be32_to_cpu(buf[0]);
10180         if ((magic & TG3_EEPROM_MAGIC_FW_MSK) ==
10181             TG3_EEPROM_MAGIC_FW) {
10182                 u8 *buf8 = (u8 *) buf, csum8 = 0;
10183
10184                 if ((magic & TG3_EEPROM_SB_REVISION_MASK) ==
10185                     TG3_EEPROM_SB_REVISION_2) {
10186                         /* For rev 2, the csum doesn't include the MBA. */
10187                         for (i = 0; i < TG3_EEPROM_SB_F1R2_MBA_OFF; i++)
10188                                 csum8 += buf8[i];
10189                         for (i = TG3_EEPROM_SB_F1R2_MBA_OFF + 4; i < size; i++)
10190                                 csum8 += buf8[i];
10191                 } else {
10192                         for (i = 0; i < size; i++)
10193                                 csum8 += buf8[i];
10194                 }
10195
10196                 if (csum8 == 0) {
10197                         err = 0;
10198                         goto out;
10199                 }
10200
10201                 err = -EIO;
10202                 goto out;
10203         }
10204
10205         if ((magic & TG3_EEPROM_MAGIC_HW_MSK) ==
10206             TG3_EEPROM_MAGIC_HW) {
10207                 u8 data[NVRAM_SELFBOOT_DATA_SIZE];
10208                 u8 parity[NVRAM_SELFBOOT_DATA_SIZE];
10209                 u8 *buf8 = (u8 *) buf;
10210
10211                 /* Separate the parity bits and the data bytes.  */
10212                 for (i = 0, j = 0, k = 0; i < NVRAM_SELFBOOT_HW_SIZE; i++) {
10213                         if ((i == 0) || (i == 8)) {
10214                                 int l;
10215                                 u8 msk;
10216
10217                                 for (l = 0, msk = 0x80; l < 7; l++, msk >>= 1)
10218                                         parity[k++] = buf8[i] & msk;
10219                                 i++;
10220                         } else if (i == 16) {
10221                                 int l;
10222                                 u8 msk;
10223
10224                                 for (l = 0, msk = 0x20; l < 6; l++, msk >>= 1)
10225                                         parity[k++] = buf8[i] & msk;
10226                                 i++;
10227
10228                                 for (l = 0, msk = 0x80; l < 8; l++, msk >>= 1)
10229                                         parity[k++] = buf8[i] & msk;
10230                                 i++;
10231                         }
10232                         data[j++] = buf8[i];
10233                 }
10234
10235                 err = -EIO;
10236                 for (i = 0; i < NVRAM_SELFBOOT_DATA_SIZE; i++) {
10237                         u8 hw8 = hweight8(data[i]);
10238
10239                         if ((hw8 & 0x1) && parity[i])
10240                                 goto out;
10241                         else if (!(hw8 & 0x1) && !parity[i])
10242                                 goto out;
10243                 }
10244                 err = 0;
10245                 goto out;
10246         }
10247
10248         /* Bootstrap checksum at offset 0x10 */
10249         csum = calc_crc((unsigned char *) buf, 0x10);
10250         if (csum != be32_to_cpu(buf[0x10/4]))
10251                 goto out;
10252
10253         /* Manufacturing block starts at offset 0x74, checksum at 0xfc */
10254         csum = calc_crc((unsigned char *) &buf[0x74/4], 0x88);
10255         if (csum != be32_to_cpu(buf[0xfc/4]))
10256                 goto out;
10257
10258         err = 0;
10259
10260 out:
10261         kfree(buf);
10262         return err;
10263 }
10264
10265 #define TG3_SERDES_TIMEOUT_SEC  2
10266 #define TG3_COPPER_TIMEOUT_SEC  6
10267
10268 static int tg3_test_link(struct tg3 *tp)
10269 {
10270         int i, max;
10271
10272         if (!netif_running(tp->dev))
10273                 return -ENODEV;
10274
10275         if (tp->phy_flags & TG3_PHYFLG_ANY_SERDES)
10276                 max = TG3_SERDES_TIMEOUT_SEC;
10277         else
10278                 max = TG3_COPPER_TIMEOUT_SEC;
10279
10280         for (i = 0; i < max; i++) {
10281                 if (netif_carrier_ok(tp->dev))
10282                         return 0;
10283
10284                 if (msleep_interruptible(1000))
10285                         break;
10286         }
10287
10288         return -EIO;
10289 }
10290
10291 /* Only test the commonly used registers */
10292 static int tg3_test_registers(struct tg3 *tp)
10293 {
10294         int i, is_5705, is_5750;
10295         u32 offset, read_mask, write_mask, val, save_val, read_val;
10296         static struct {
10297                 u16 offset;
10298                 u16 flags;
10299 #define TG3_FL_5705     0x1
10300 #define TG3_FL_NOT_5705 0x2
10301 #define TG3_FL_NOT_5788 0x4
10302 #define TG3_FL_NOT_5750 0x8
10303                 u32 read_mask;
10304                 u32 write_mask;
10305         } reg_tbl[] = {
10306                 /* MAC Control Registers */
10307                 { MAC_MODE, TG3_FL_NOT_5705,
10308                         0x00000000, 0x00ef6f8c },
10309                 { MAC_MODE, TG3_FL_5705,
10310                         0x00000000, 0x01ef6b8c },
10311                 { MAC_STATUS, TG3_FL_NOT_5705,
10312                         0x03800107, 0x00000000 },
10313                 { MAC_STATUS, TG3_FL_5705,
10314                         0x03800100, 0x00000000 },
10315                 { MAC_ADDR_0_HIGH, 0x0000,
10316                         0x00000000, 0x0000ffff },
10317                 { MAC_ADDR_0_LOW, 0x0000,
10318                         0x00000000, 0xffffffff },
10319                 { MAC_RX_MTU_SIZE, 0x0000,
10320                         0x00000000, 0x0000ffff },
10321                 { MAC_TX_MODE, 0x0000,
10322                         0x00000000, 0x00000070 },
10323                 { MAC_TX_LENGTHS, 0x0000,
10324                         0x00000000, 0x00003fff },
10325                 { MAC_RX_MODE, TG3_FL_NOT_5705,
10326                         0x00000000, 0x000007fc },
10327                 { MAC_RX_MODE, TG3_FL_5705,
10328                         0x00000000, 0x000007dc },
10329                 { MAC_HASH_REG_0, 0x0000,
10330                         0x00000000, 0xffffffff },
10331                 { MAC_HASH_REG_1, 0x0000,
10332                         0x00000000, 0xffffffff },
10333                 { MAC_HASH_REG_2, 0x0000,
10334                         0x00000000, 0xffffffff },
10335                 { MAC_HASH_REG_3, 0x0000,
10336                         0x00000000, 0xffffffff },
10337
10338                 /* Receive Data and Receive BD Initiator Control Registers. */
10339                 { RCVDBDI_JUMBO_BD+0, TG3_FL_NOT_5705,
10340                         0x00000000, 0xffffffff },
10341                 { RCVDBDI_JUMBO_BD+4, TG3_FL_NOT_5705,
10342                         0x00000000, 0xffffffff },
10343                 { RCVDBDI_JUMBO_BD+8, TG3_FL_NOT_5705,
10344                         0x00000000, 0x00000003 },
10345                 { RCVDBDI_JUMBO_BD+0xc, TG3_FL_NOT_5705,
10346                         0x00000000, 0xffffffff },
10347                 { RCVDBDI_STD_BD+0, 0x0000,
10348                         0x00000000, 0xffffffff },
10349                 { RCVDBDI_STD_BD+4, 0x0000,
10350                         0x00000000, 0xffffffff },
10351                 { RCVDBDI_STD_BD+8, 0x0000,
10352                         0x00000000, 0xffff0002 },
10353                 { RCVDBDI_STD_BD+0xc, 0x0000,
10354                         0x00000000, 0xffffffff },
10355
10356                 /* Receive BD Initiator Control Registers. */
10357                 { RCVBDI_STD_THRESH, TG3_FL_NOT_5705,
10358                         0x00000000, 0xffffffff },
10359                 { RCVBDI_STD_THRESH, TG3_FL_5705,
10360                         0x00000000, 0x000003ff },
10361                 { RCVBDI_JUMBO_THRESH, TG3_FL_NOT_5705,
10362                         0x00000000, 0xffffffff },
10363
10364                 /* Host Coalescing Control Registers. */
10365                 { HOSTCC_MODE, TG3_FL_NOT_5705,
10366                         0x00000000, 0x00000004 },
10367                 { HOSTCC_MODE, TG3_FL_5705,
10368                         0x00000000, 0x000000f6 },
10369                 { HOSTCC_RXCOL_TICKS, TG3_FL_NOT_5705,
10370                         0x00000000, 0xffffffff },
10371                 { HOSTCC_RXCOL_TICKS, TG3_FL_5705,
10372                         0x00000000, 0x000003ff },
10373                 { HOSTCC_TXCOL_TICKS, TG3_FL_NOT_5705,
10374                         0x00000000, 0xffffffff },
10375                 { HOSTCC_TXCOL_TICKS, TG3_FL_5705,
10376                         0x00000000, 0x000003ff },
10377                 { HOSTCC_RXMAX_FRAMES, TG3_FL_NOT_5705,
10378                         0x00000000, 0xffffffff },
10379                 { HOSTCC_RXMAX_FRAMES, TG3_FL_5705 | TG3_FL_NOT_5788,
10380                         0x00000000, 0x000000ff },
10381                 { HOSTCC_TXMAX_FRAMES, TG3_FL_NOT_5705,
10382                         0x00000000, 0xffffffff },
10383                 { HOSTCC_TXMAX_FRAMES, TG3_FL_5705 | TG3_FL_NOT_5788,
10384                         0x00000000, 0x000000ff },
10385                 { HOSTCC_RXCOAL_TICK_INT, TG3_FL_NOT_5705,
10386                         0x00000000, 0xffffffff },
10387                 { HOSTCC_TXCOAL_TICK_INT, TG3_FL_NOT_5705,
10388                         0x00000000, 0xffffffff },
10389                 { HOSTCC_RXCOAL_MAXF_INT, TG3_FL_NOT_5705,
10390                         0x00000000, 0xffffffff },
10391                 { HOSTCC_RXCOAL_MAXF_INT, TG3_FL_5705 | TG3_FL_NOT_5788,
10392                         0x00000000, 0x000000ff },
10393                 { HOSTCC_TXCOAL_MAXF_INT, TG3_FL_NOT_5705,
10394                         0x00000000, 0xffffffff },
10395                 { HOSTCC_TXCOAL_MAXF_INT, TG3_FL_5705 | TG3_FL_NOT_5788,
10396                         0x00000000, 0x000000ff },
10397                 { HOSTCC_STAT_COAL_TICKS, TG3_FL_NOT_5705,
10398                         0x00000000, 0xffffffff },
10399                 { HOSTCC_STATS_BLK_HOST_ADDR, TG3_FL_NOT_5705,
10400                         0x00000000, 0xffffffff },
10401                 { HOSTCC_STATS_BLK_HOST_ADDR+4, TG3_FL_NOT_5705,
10402                         0x00000000, 0xffffffff },
10403                 { HOSTCC_STATUS_BLK_HOST_ADDR, 0x0000,
10404                         0x00000000, 0xffffffff },
10405                 { HOSTCC_STATUS_BLK_HOST_ADDR+4, 0x0000,
10406                         0x00000000, 0xffffffff },
10407                 { HOSTCC_STATS_BLK_NIC_ADDR, 0x0000,
10408                         0xffffffff, 0x00000000 },
10409                 { HOSTCC_STATUS_BLK_NIC_ADDR, 0x0000,
10410                         0xffffffff, 0x00000000 },
10411
10412                 /* Buffer Manager Control Registers. */
10413                 { BUFMGR_MB_POOL_ADDR, TG3_FL_NOT_5750,
10414                         0x00000000, 0x007fff80 },
10415                 { BUFMGR_MB_POOL_SIZE, TG3_FL_NOT_5750,
10416                         0x00000000, 0x007fffff },
10417                 { BUFMGR_MB_RDMA_LOW_WATER, 0x0000,
10418                         0x00000000, 0x0000003f },
10419                 { BUFMGR_MB_MACRX_LOW_WATER, 0x0000,
10420                         0x00000000, 0x000001ff },
10421                 { BUFMGR_MB_HIGH_WATER, 0x0000,
10422                         0x00000000, 0x000001ff },
10423                 { BUFMGR_DMA_DESC_POOL_ADDR, TG3_FL_NOT_5705,
10424                         0xffffffff, 0x00000000 },
10425                 { BUFMGR_DMA_DESC_POOL_SIZE, TG3_FL_NOT_5705,
10426                         0xffffffff, 0x00000000 },
10427
10428                 /* Mailbox Registers */
10429                 { GRCMBOX_RCVSTD_PROD_IDX+4, 0x0000,
10430                         0x00000000, 0x000001ff },
10431                 { GRCMBOX_RCVJUMBO_PROD_IDX+4, TG3_FL_NOT_5705,
10432                         0x00000000, 0x000001ff },
10433                 { GRCMBOX_RCVRET_CON_IDX_0+4, 0x0000,
10434                         0x00000000, 0x000007ff },
10435                 { GRCMBOX_SNDHOST_PROD_IDX_0+4, 0x0000,
10436                         0x00000000, 0x000001ff },
10437
10438                 { 0xffff, 0x0000, 0x00000000, 0x00000000 },
10439         };
10440
10441         is_5705 = is_5750 = 0;
10442         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
10443                 is_5705 = 1;
10444                 if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS)
10445                         is_5750 = 1;
10446         }
10447
10448         for (i = 0; reg_tbl[i].offset != 0xffff; i++) {
10449                 if (is_5705 && (reg_tbl[i].flags & TG3_FL_NOT_5705))
10450                         continue;
10451
10452                 if (!is_5705 && (reg_tbl[i].flags & TG3_FL_5705))
10453                         continue;
10454
10455                 if ((tp->tg3_flags2 & TG3_FLG2_IS_5788) &&
10456                     (reg_tbl[i].flags & TG3_FL_NOT_5788))
10457                         continue;
10458
10459                 if (is_5750 && (reg_tbl[i].flags & TG3_FL_NOT_5750))
10460                         continue;
10461
10462                 offset = (u32) reg_tbl[i].offset;
10463                 read_mask = reg_tbl[i].read_mask;
10464                 write_mask = reg_tbl[i].write_mask;
10465
10466                 /* Save the original register content */
10467                 save_val = tr32(offset);
10468
10469                 /* Determine the read-only value. */
10470                 read_val = save_val & read_mask;
10471
10472                 /* Write zero to the register, then make sure the read-only bits
10473                  * are not changed and the read/write bits are all zeros.
10474                  */
10475                 tw32(offset, 0);
10476
10477                 val = tr32(offset);
10478
10479                 /* Test the read-only and read/write bits. */
10480                 if (((val & read_mask) != read_val) || (val & write_mask))
10481                         goto out;
10482
10483                 /* Write ones to all the bits defined by RdMask and WrMask, then
10484                  * make sure the read-only bits are not changed and the
10485                  * read/write bits are all ones.
10486                  */
10487                 tw32(offset, read_mask | write_mask);
10488
10489                 val = tr32(offset);
10490
10491                 /* Test the read-only bits. */
10492                 if ((val & read_mask) != read_val)
10493                         goto out;
10494
10495                 /* Test the read/write bits. */
10496                 if ((val & write_mask) != write_mask)
10497                         goto out;
10498
10499                 tw32(offset, save_val);
10500         }
10501
10502         return 0;
10503
10504 out:
10505         if (netif_msg_hw(tp))
10506                 netdev_err(tp->dev,
10507                            "Register test failed at offset %x\n", offset);
10508         tw32(offset, save_val);
10509         return -EIO;
10510 }
10511
10512 static int tg3_do_mem_test(struct tg3 *tp, u32 offset, u32 len)
10513 {
10514         static const u32 test_pattern[] = { 0x00000000, 0xffffffff, 0xaa55a55a };
10515         int i;
10516         u32 j;
10517
10518         for (i = 0; i < ARRAY_SIZE(test_pattern); i++) {
10519                 for (j = 0; j < len; j += 4) {
10520                         u32 val;
10521
10522                         tg3_write_mem(tp, offset + j, test_pattern[i]);
10523                         tg3_read_mem(tp, offset + j, &val);
10524                         if (val != test_pattern[i])
10525                                 return -EIO;
10526                 }
10527         }
10528         return 0;
10529 }
10530
10531 static int tg3_test_memory(struct tg3 *tp)
10532 {
10533         static struct mem_entry {
10534                 u32 offset;
10535                 u32 len;
10536         } mem_tbl_570x[] = {
10537                 { 0x00000000, 0x00b50},
10538                 { 0x00002000, 0x1c000},
10539                 { 0xffffffff, 0x00000}
10540         }, mem_tbl_5705[] = {
10541                 { 0x00000100, 0x0000c},
10542                 { 0x00000200, 0x00008},
10543                 { 0x00004000, 0x00800},
10544                 { 0x00006000, 0x01000},
10545                 { 0x00008000, 0x02000},
10546                 { 0x00010000, 0x0e000},
10547                 { 0xffffffff, 0x00000}
10548         }, mem_tbl_5755[] = {
10549                 { 0x00000200, 0x00008},
10550                 { 0x00004000, 0x00800},
10551                 { 0x00006000, 0x00800},
10552                 { 0x00008000, 0x02000},
10553                 { 0x00010000, 0x0c000},
10554                 { 0xffffffff, 0x00000}
10555         }, mem_tbl_5906[] = {
10556                 { 0x00000200, 0x00008},
10557                 { 0x00004000, 0x00400},
10558                 { 0x00006000, 0x00400},
10559                 { 0x00008000, 0x01000},
10560                 { 0x00010000, 0x01000},
10561                 { 0xffffffff, 0x00000}
10562         }, mem_tbl_5717[] = {
10563                 { 0x00000200, 0x00008},
10564                 { 0x00010000, 0x0a000},
10565                 { 0x00020000, 0x13c00},
10566                 { 0xffffffff, 0x00000}
10567         }, mem_tbl_57765[] = {
10568                 { 0x00000200, 0x00008},
10569                 { 0x00004000, 0x00800},
10570                 { 0x00006000, 0x09800},
10571                 { 0x00010000, 0x0a000},
10572                 { 0xffffffff, 0x00000}
10573         };
10574         struct mem_entry *mem_tbl;
10575         int err = 0;
10576         int i;
10577
10578         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
10579             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719)
10580                 mem_tbl = mem_tbl_5717;
10581         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
10582                 mem_tbl = mem_tbl_57765;
10583         else if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
10584                 mem_tbl = mem_tbl_5755;
10585         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
10586                 mem_tbl = mem_tbl_5906;
10587         else if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
10588                 mem_tbl = mem_tbl_5705;
10589         else
10590                 mem_tbl = mem_tbl_570x;
10591
10592         for (i = 0; mem_tbl[i].offset != 0xffffffff; i++) {
10593                 err = tg3_do_mem_test(tp, mem_tbl[i].offset, mem_tbl[i].len);
10594                 if (err)
10595                         break;
10596         }
10597
10598         return err;
10599 }
10600
10601 #define TG3_MAC_LOOPBACK        0
10602 #define TG3_PHY_LOOPBACK        1
10603
10604 static int tg3_run_loopback(struct tg3 *tp, int loopback_mode)
10605 {
10606         u32 mac_mode, rx_start_idx, rx_idx, tx_idx, opaque_key;
10607         u32 desc_idx, coal_now;
10608         struct sk_buff *skb, *rx_skb;
10609         u8 *tx_data;
10610         dma_addr_t map;
10611         int num_pkts, tx_len, rx_len, i, err;
10612         struct tg3_rx_buffer_desc *desc;
10613         struct tg3_napi *tnapi, *rnapi;
10614         struct tg3_rx_prodring_set *tpr = &tp->prodring[0];
10615
10616         tnapi = &tp->napi[0];
10617         rnapi = &tp->napi[0];
10618         if (tp->irq_cnt > 1) {
10619                 rnapi = &tp->napi[1];
10620                 if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
10621                         tnapi = &tp->napi[1];
10622         }
10623         coal_now = tnapi->coal_now | rnapi->coal_now;
10624
10625         if (loopback_mode == TG3_MAC_LOOPBACK) {
10626                 /* HW errata - mac loopback fails in some cases on 5780.
10627                  * Normal traffic and PHY loopback are not affected by
10628                  * errata.
10629                  */
10630                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780)
10631                         return 0;
10632
10633                 mac_mode = (tp->mac_mode & ~MAC_MODE_PORT_MODE_MASK) |
10634                            MAC_MODE_PORT_INT_LPBACK;
10635                 if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
10636                         mac_mode |= MAC_MODE_LINK_POLARITY;
10637                 if (tp->phy_flags & TG3_PHYFLG_10_100_ONLY)
10638                         mac_mode |= MAC_MODE_PORT_MODE_MII;
10639                 else
10640                         mac_mode |= MAC_MODE_PORT_MODE_GMII;
10641                 tw32(MAC_MODE, mac_mode);
10642         } else if (loopback_mode == TG3_PHY_LOOPBACK) {
10643                 u32 val;
10644
10645                 if (tp->phy_flags & TG3_PHYFLG_IS_FET) {
10646                         tg3_phy_fet_toggle_apd(tp, false);
10647                         val = BMCR_LOOPBACK | BMCR_FULLDPLX | BMCR_SPEED100;
10648                 } else
10649                         val = BMCR_LOOPBACK | BMCR_FULLDPLX | BMCR_SPEED1000;
10650
10651                 tg3_phy_toggle_automdix(tp, 0);
10652
10653                 tg3_writephy(tp, MII_BMCR, val);
10654                 udelay(40);
10655
10656                 mac_mode = tp->mac_mode & ~MAC_MODE_PORT_MODE_MASK;
10657                 if (tp->phy_flags & TG3_PHYFLG_IS_FET) {
10658                         tg3_writephy(tp, MII_TG3_FET_PTEST,
10659                                      MII_TG3_FET_PTEST_FRC_TX_LINK |
10660                                      MII_TG3_FET_PTEST_FRC_TX_LOCK);
10661                         /* The write needs to be flushed for the AC131 */
10662                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
10663                                 tg3_readphy(tp, MII_TG3_FET_PTEST, &val);
10664                         mac_mode |= MAC_MODE_PORT_MODE_MII;
10665                 } else
10666                         mac_mode |= MAC_MODE_PORT_MODE_GMII;
10667
10668                 /* reset to prevent losing 1st rx packet intermittently */
10669                 if (tp->phy_flags & TG3_PHYFLG_MII_SERDES) {
10670                         tw32_f(MAC_RX_MODE, RX_MODE_RESET);
10671                         udelay(10);
10672                         tw32_f(MAC_RX_MODE, tp->rx_mode);
10673                 }
10674                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) {
10675                         u32 masked_phy_id = tp->phy_id & TG3_PHY_ID_MASK;
10676                         if (masked_phy_id == TG3_PHY_ID_BCM5401)
10677                                 mac_mode &= ~MAC_MODE_LINK_POLARITY;
10678                         else if (masked_phy_id == TG3_PHY_ID_BCM5411)
10679                                 mac_mode |= MAC_MODE_LINK_POLARITY;
10680                         tg3_writephy(tp, MII_TG3_EXT_CTRL,
10681                                      MII_TG3_EXT_CTRL_LNK3_LED_MODE);
10682                 }
10683                 tw32(MAC_MODE, mac_mode);
10684         } else {
10685                 return -EINVAL;
10686         }
10687
10688         err = -EIO;
10689
10690         tx_len = 1514;
10691         skb = netdev_alloc_skb(tp->dev, tx_len);
10692         if (!skb)
10693                 return -ENOMEM;
10694
10695         tx_data = skb_put(skb, tx_len);
10696         memcpy(tx_data, tp->dev->dev_addr, 6);
10697         memset(tx_data + 6, 0x0, 8);
10698
10699         tw32(MAC_RX_MTU_SIZE, tx_len + 4);
10700
10701         for (i = 14; i < tx_len; i++)
10702                 tx_data[i] = (u8) (i & 0xff);
10703
10704         map = pci_map_single(tp->pdev, skb->data, tx_len, PCI_DMA_TODEVICE);
10705         if (pci_dma_mapping_error(tp->pdev, map)) {
10706                 dev_kfree_skb(skb);
10707                 return -EIO;
10708         }
10709
10710         tw32_f(HOSTCC_MODE, tp->coalesce_mode | HOSTCC_MODE_ENABLE |
10711                rnapi->coal_now);
10712
10713         udelay(10);
10714
10715         rx_start_idx = rnapi->hw_status->idx[0].rx_producer;
10716
10717         num_pkts = 0;
10718
10719         tg3_set_txd(tnapi, tnapi->tx_prod, map, tx_len, 0, 1);
10720
10721         tnapi->tx_prod++;
10722         num_pkts++;
10723
10724         tw32_tx_mbox(tnapi->prodmbox, tnapi->tx_prod);
10725         tr32_mailbox(tnapi->prodmbox);
10726
10727         udelay(10);
10728
10729         /* 350 usec to allow enough time on some 10/100 Mbps devices.  */
10730         for (i = 0; i < 35; i++) {
10731                 tw32_f(HOSTCC_MODE, tp->coalesce_mode | HOSTCC_MODE_ENABLE |
10732                        coal_now);
10733
10734                 udelay(10);
10735
10736                 tx_idx = tnapi->hw_status->idx[0].tx_consumer;
10737                 rx_idx = rnapi->hw_status->idx[0].rx_producer;
10738                 if ((tx_idx == tnapi->tx_prod) &&
10739                     (rx_idx == (rx_start_idx + num_pkts)))
10740                         break;
10741         }
10742
10743         pci_unmap_single(tp->pdev, map, tx_len, PCI_DMA_TODEVICE);
10744         dev_kfree_skb(skb);
10745
10746         if (tx_idx != tnapi->tx_prod)
10747                 goto out;
10748
10749         if (rx_idx != rx_start_idx + num_pkts)
10750                 goto out;
10751
10752         desc = &rnapi->rx_rcb[rx_start_idx];
10753         desc_idx = desc->opaque & RXD_OPAQUE_INDEX_MASK;
10754         opaque_key = desc->opaque & RXD_OPAQUE_RING_MASK;
10755         if (opaque_key != RXD_OPAQUE_RING_STD)
10756                 goto out;
10757
10758         if ((desc->err_vlan & RXD_ERR_MASK) != 0 &&
10759             (desc->err_vlan != RXD_ERR_ODD_NIBBLE_RCVD_MII))
10760                 goto out;
10761
10762         rx_len = ((desc->idx_len & RXD_LEN_MASK) >> RXD_LEN_SHIFT) - 4;
10763         if (rx_len != tx_len)
10764                 goto out;
10765
10766         rx_skb = tpr->rx_std_buffers[desc_idx].skb;
10767
10768         map = dma_unmap_addr(&tpr->rx_std_buffers[desc_idx], mapping);
10769         pci_dma_sync_single_for_cpu(tp->pdev, map, rx_len, PCI_DMA_FROMDEVICE);
10770
10771         for (i = 14; i < tx_len; i++) {
10772                 if (*(rx_skb->data + i) != (u8) (i & 0xff))
10773                         goto out;
10774         }
10775         err = 0;
10776
10777         /* tg3_free_rings will unmap and free the rx_skb */
10778 out:
10779         return err;
10780 }
10781
10782 #define TG3_MAC_LOOPBACK_FAILED         1
10783 #define TG3_PHY_LOOPBACK_FAILED         2
10784 #define TG3_LOOPBACK_FAILED             (TG3_MAC_LOOPBACK_FAILED |      \
10785                                          TG3_PHY_LOOPBACK_FAILED)
10786
10787 static int tg3_test_loopback(struct tg3 *tp)
10788 {
10789         int err = 0;
10790         u32 cpmuctrl = 0;
10791
10792         if (!netif_running(tp->dev))
10793                 return TG3_LOOPBACK_FAILED;
10794
10795         err = tg3_reset_hw(tp, 1);
10796         if (err)
10797                 return TG3_LOOPBACK_FAILED;
10798
10799         /* Turn off gphy autopowerdown. */
10800         if (tp->phy_flags & TG3_PHYFLG_ENABLE_APD)
10801                 tg3_phy_toggle_apd(tp, false);
10802
10803         if (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) {
10804                 int i;
10805                 u32 status;
10806
10807                 tw32(TG3_CPMU_MUTEX_REQ, CPMU_MUTEX_REQ_DRIVER);
10808
10809                 /* Wait for up to 40 microseconds to acquire lock. */
10810                 for (i = 0; i < 4; i++) {
10811                         status = tr32(TG3_CPMU_MUTEX_GNT);
10812                         if (status == CPMU_MUTEX_GNT_DRIVER)
10813                                 break;
10814                         udelay(10);
10815                 }
10816
10817                 if (status != CPMU_MUTEX_GNT_DRIVER)
10818                         return TG3_LOOPBACK_FAILED;
10819
10820                 /* Turn off link-based power management. */
10821                 cpmuctrl = tr32(TG3_CPMU_CTRL);
10822                 tw32(TG3_CPMU_CTRL,
10823                      cpmuctrl & ~(CPMU_CTRL_LINK_SPEED_MODE |
10824                                   CPMU_CTRL_LINK_AWARE_MODE));
10825         }
10826
10827         if (tg3_run_loopback(tp, TG3_MAC_LOOPBACK))
10828                 err |= TG3_MAC_LOOPBACK_FAILED;
10829
10830         if (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) {
10831                 tw32(TG3_CPMU_CTRL, cpmuctrl);
10832
10833                 /* Release the mutex */
10834                 tw32(TG3_CPMU_MUTEX_GNT, CPMU_MUTEX_GNT_DRIVER);
10835         }
10836
10837         if (!(tp->phy_flags & TG3_PHYFLG_PHY_SERDES) &&
10838             !(tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB)) {
10839                 if (tg3_run_loopback(tp, TG3_PHY_LOOPBACK))
10840                         err |= TG3_PHY_LOOPBACK_FAILED;
10841         }
10842
10843         /* Re-enable gphy autopowerdown. */
10844         if (tp->phy_flags & TG3_PHYFLG_ENABLE_APD)
10845                 tg3_phy_toggle_apd(tp, true);
10846
10847         return err;
10848 }
10849
10850 static void tg3_self_test(struct net_device *dev, struct ethtool_test *etest,
10851                           u64 *data)
10852 {
10853         struct tg3 *tp = netdev_priv(dev);
10854
10855         if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)
10856                 tg3_set_power_state(tp, PCI_D0);
10857
10858         memset(data, 0, sizeof(u64) * TG3_NUM_TEST);
10859
10860         if (tg3_test_nvram(tp) != 0) {
10861                 etest->flags |= ETH_TEST_FL_FAILED;
10862                 data[0] = 1;
10863         }
10864         if (tg3_test_link(tp) != 0) {
10865                 etest->flags |= ETH_TEST_FL_FAILED;
10866                 data[1] = 1;
10867         }
10868         if (etest->flags & ETH_TEST_FL_OFFLINE) {
10869                 int err, err2 = 0, irq_sync = 0;
10870
10871                 if (netif_running(dev)) {
10872                         tg3_phy_stop(tp);
10873                         tg3_netif_stop(tp);
10874                         irq_sync = 1;
10875                 }
10876
10877                 tg3_full_lock(tp, irq_sync);
10878
10879                 tg3_halt(tp, RESET_KIND_SUSPEND, 1);
10880                 err = tg3_nvram_lock(tp);
10881                 tg3_halt_cpu(tp, RX_CPU_BASE);
10882                 if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
10883                         tg3_halt_cpu(tp, TX_CPU_BASE);
10884                 if (!err)
10885                         tg3_nvram_unlock(tp);
10886
10887                 if (tp->phy_flags & TG3_PHYFLG_MII_SERDES)
10888                         tg3_phy_reset(tp);
10889
10890                 if (tg3_test_registers(tp) != 0) {
10891                         etest->flags |= ETH_TEST_FL_FAILED;
10892                         data[2] = 1;
10893                 }
10894                 if (tg3_test_memory(tp) != 0) {
10895                         etest->flags |= ETH_TEST_FL_FAILED;
10896                         data[3] = 1;
10897                 }
10898                 if ((data[4] = tg3_test_loopback(tp)) != 0)
10899                         etest->flags |= ETH_TEST_FL_FAILED;
10900
10901                 tg3_full_unlock(tp);
10902
10903                 if (tg3_test_interrupt(tp) != 0) {
10904                         etest->flags |= ETH_TEST_FL_FAILED;
10905                         data[5] = 1;
10906                 }
10907
10908                 tg3_full_lock(tp, 0);
10909
10910                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
10911                 if (netif_running(dev)) {
10912                         tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
10913                         err2 = tg3_restart_hw(tp, 1);
10914                         if (!err2)
10915                                 tg3_netif_start(tp);
10916                 }
10917
10918                 tg3_full_unlock(tp);
10919
10920                 if (irq_sync && !err2)
10921                         tg3_phy_start(tp);
10922         }
10923         if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)
10924                 tg3_set_power_state(tp, PCI_D3hot);
10925
10926 }
10927
10928 static int tg3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
10929 {
10930         struct mii_ioctl_data *data = if_mii(ifr);
10931         struct tg3 *tp = netdev_priv(dev);
10932         int err;
10933
10934         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
10935                 struct phy_device *phydev;
10936                 if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
10937                         return -EAGAIN;
10938                 phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
10939                 return phy_mii_ioctl(phydev, ifr, cmd);
10940         }
10941
10942         switch (cmd) {
10943         case SIOCGMIIPHY:
10944                 data->phy_id = tp->phy_addr;
10945
10946                 /* fallthru */
10947         case SIOCGMIIREG: {
10948                 u32 mii_regval;
10949
10950                 if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES)
10951                         break;                  /* We have no PHY */
10952
10953                 if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)
10954                         return -EAGAIN;
10955
10956                 spin_lock_bh(&tp->lock);
10957                 err = tg3_readphy(tp, data->reg_num & 0x1f, &mii_regval);
10958                 spin_unlock_bh(&tp->lock);
10959
10960                 data->val_out = mii_regval;
10961
10962                 return err;
10963         }
10964
10965         case SIOCSMIIREG:
10966                 if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES)
10967                         break;                  /* We have no PHY */
10968
10969                 if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)
10970                         return -EAGAIN;
10971
10972                 spin_lock_bh(&tp->lock);
10973                 err = tg3_writephy(tp, data->reg_num & 0x1f, data->val_in);
10974                 spin_unlock_bh(&tp->lock);
10975
10976                 return err;
10977
10978         default:
10979                 /* do nothing */
10980                 break;
10981         }
10982         return -EOPNOTSUPP;
10983 }
10984
10985 #if TG3_VLAN_TAG_USED
10986 static void tg3_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
10987 {
10988         struct tg3 *tp = netdev_priv(dev);
10989
10990         if (!netif_running(dev)) {
10991                 tp->vlgrp = grp;
10992                 return;
10993         }
10994
10995         tg3_netif_stop(tp);
10996
10997         tg3_full_lock(tp, 0);
10998
10999         tp->vlgrp = grp;
11000
11001         /* Update RX_MODE_KEEP_VLAN_TAG bit in RX_MODE register. */
11002         __tg3_set_rx_mode(dev);
11003
11004         tg3_netif_start(tp);
11005
11006         tg3_full_unlock(tp);
11007 }
11008 #endif
11009
11010 static int tg3_get_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
11011 {
11012         struct tg3 *tp = netdev_priv(dev);
11013
11014         memcpy(ec, &tp->coal, sizeof(*ec));
11015         return 0;
11016 }
11017
11018 static int tg3_set_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
11019 {
11020         struct tg3 *tp = netdev_priv(dev);
11021         u32 max_rxcoal_tick_int = 0, max_txcoal_tick_int = 0;
11022         u32 max_stat_coal_ticks = 0, min_stat_coal_ticks = 0;
11023
11024         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
11025                 max_rxcoal_tick_int = MAX_RXCOAL_TICK_INT;
11026                 max_txcoal_tick_int = MAX_TXCOAL_TICK_INT;
11027                 max_stat_coal_ticks = MAX_STAT_COAL_TICKS;
11028                 min_stat_coal_ticks = MIN_STAT_COAL_TICKS;
11029         }
11030
11031         if ((ec->rx_coalesce_usecs > MAX_RXCOL_TICKS) ||
11032             (ec->tx_coalesce_usecs > MAX_TXCOL_TICKS) ||
11033             (ec->rx_max_coalesced_frames > MAX_RXMAX_FRAMES) ||
11034             (ec->tx_max_coalesced_frames > MAX_TXMAX_FRAMES) ||
11035             (ec->rx_coalesce_usecs_irq > max_rxcoal_tick_int) ||
11036             (ec->tx_coalesce_usecs_irq > max_txcoal_tick_int) ||
11037             (ec->rx_max_coalesced_frames_irq > MAX_RXCOAL_MAXF_INT) ||
11038             (ec->tx_max_coalesced_frames_irq > MAX_TXCOAL_MAXF_INT) ||
11039             (ec->stats_block_coalesce_usecs > max_stat_coal_ticks) ||
11040             (ec->stats_block_coalesce_usecs < min_stat_coal_ticks))
11041                 return -EINVAL;
11042
11043         /* No rx interrupts will be generated if both are zero */
11044         if ((ec->rx_coalesce_usecs == 0) &&
11045             (ec->rx_max_coalesced_frames == 0))
11046                 return -EINVAL;
11047
11048         /* No tx interrupts will be generated if both are zero */
11049         if ((ec->tx_coalesce_usecs == 0) &&
11050             (ec->tx_max_coalesced_frames == 0))
11051                 return -EINVAL;
11052
11053         /* Only copy relevant parameters, ignore all others. */
11054         tp->coal.rx_coalesce_usecs = ec->rx_coalesce_usecs;
11055         tp->coal.tx_coalesce_usecs = ec->tx_coalesce_usecs;
11056         tp->coal.rx_max_coalesced_frames = ec->rx_max_coalesced_frames;
11057         tp->coal.tx_max_coalesced_frames = ec->tx_max_coalesced_frames;
11058         tp->coal.rx_coalesce_usecs_irq = ec->rx_coalesce_usecs_irq;
11059         tp->coal.tx_coalesce_usecs_irq = ec->tx_coalesce_usecs_irq;
11060         tp->coal.rx_max_coalesced_frames_irq = ec->rx_max_coalesced_frames_irq;
11061         tp->coal.tx_max_coalesced_frames_irq = ec->tx_max_coalesced_frames_irq;
11062         tp->coal.stats_block_coalesce_usecs = ec->stats_block_coalesce_usecs;
11063
11064         if (netif_running(dev)) {
11065                 tg3_full_lock(tp, 0);
11066                 __tg3_set_coalesce(tp, &tp->coal);
11067                 tg3_full_unlock(tp);
11068         }
11069         return 0;
11070 }
11071
11072 static const struct ethtool_ops tg3_ethtool_ops = {
11073         .get_settings           = tg3_get_settings,
11074         .set_settings           = tg3_set_settings,
11075         .get_drvinfo            = tg3_get_drvinfo,
11076         .get_regs_len           = tg3_get_regs_len,
11077         .get_regs               = tg3_get_regs,
11078         .get_wol                = tg3_get_wol,
11079         .set_wol                = tg3_set_wol,
11080         .get_msglevel           = tg3_get_msglevel,
11081         .set_msglevel           = tg3_set_msglevel,
11082         .nway_reset             = tg3_nway_reset,
11083         .get_link               = ethtool_op_get_link,
11084         .get_eeprom_len         = tg3_get_eeprom_len,
11085         .get_eeprom             = tg3_get_eeprom,
11086         .set_eeprom             = tg3_set_eeprom,
11087         .get_ringparam          = tg3_get_ringparam,
11088         .set_ringparam          = tg3_set_ringparam,
11089         .get_pauseparam         = tg3_get_pauseparam,
11090         .set_pauseparam         = tg3_set_pauseparam,
11091         .get_rx_csum            = tg3_get_rx_csum,
11092         .set_rx_csum            = tg3_set_rx_csum,
11093         .set_tx_csum            = tg3_set_tx_csum,
11094         .set_sg                 = ethtool_op_set_sg,
11095         .set_tso                = tg3_set_tso,
11096         .self_test              = tg3_self_test,
11097         .get_strings            = tg3_get_strings,
11098         .phys_id                = tg3_phys_id,
11099         .get_ethtool_stats      = tg3_get_ethtool_stats,
11100         .get_coalesce           = tg3_get_coalesce,
11101         .set_coalesce           = tg3_set_coalesce,
11102         .get_sset_count         = tg3_get_sset_count,
11103 };
11104
11105 static void __devinit tg3_get_eeprom_size(struct tg3 *tp)
11106 {
11107         u32 cursize, val, magic;
11108
11109         tp->nvram_size = EEPROM_CHIP_SIZE;
11110
11111         if (tg3_nvram_read(tp, 0, &magic) != 0)
11112                 return;
11113
11114         if ((magic != TG3_EEPROM_MAGIC) &&
11115             ((magic & TG3_EEPROM_MAGIC_FW_MSK) != TG3_EEPROM_MAGIC_FW) &&
11116             ((magic & TG3_EEPROM_MAGIC_HW_MSK) != TG3_EEPROM_MAGIC_HW))
11117                 return;
11118
11119         /*
11120          * Size the chip by reading offsets at increasing powers of two.
11121          * When we encounter our validation signature, we know the addressing
11122          * has wrapped around, and thus have our chip size.
11123          */
11124         cursize = 0x10;
11125
11126         while (cursize < tp->nvram_size) {
11127                 if (tg3_nvram_read(tp, cursize, &val) != 0)
11128                         return;
11129
11130                 if (val == magic)
11131                         break;
11132
11133                 cursize <<= 1;
11134         }
11135
11136         tp->nvram_size = cursize;
11137 }
11138
11139 static void __devinit tg3_get_nvram_size(struct tg3 *tp)
11140 {
11141         u32 val;
11142
11143         if ((tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) ||
11144             tg3_nvram_read(tp, 0, &val) != 0)
11145                 return;
11146
11147         /* Selfboot format */
11148         if (val != TG3_EEPROM_MAGIC) {
11149                 tg3_get_eeprom_size(tp);
11150                 return;
11151         }
11152
11153         if (tg3_nvram_read(tp, 0xf0, &val) == 0) {
11154                 if (val != 0) {
11155                         /* This is confusing.  We want to operate on the
11156                          * 16-bit value at offset 0xf2.  The tg3_nvram_read()
11157                          * call will read from NVRAM and byteswap the data
11158                          * according to the byteswapping settings for all
11159                          * other register accesses.  This ensures the data we
11160                          * want will always reside in the lower 16-bits.
11161                          * However, the data in NVRAM is in LE format, which
11162                          * means the data from the NVRAM read will always be
11163                          * opposite the endianness of the CPU.  The 16-bit
11164                          * byteswap then brings the data to CPU endianness.
11165                          */
11166                         tp->nvram_size = swab16((u16)(val & 0x0000ffff)) * 1024;
11167                         return;
11168                 }
11169         }
11170         tp->nvram_size = TG3_NVRAM_SIZE_512KB;
11171 }
11172
11173 static void __devinit tg3_get_nvram_info(struct tg3 *tp)
11174 {
11175         u32 nvcfg1;
11176
11177         nvcfg1 = tr32(NVRAM_CFG1);
11178         if (nvcfg1 & NVRAM_CFG1_FLASHIF_ENAB) {
11179                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11180         } else {
11181                 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
11182                 tw32(NVRAM_CFG1, nvcfg1);
11183         }
11184
11185         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750) ||
11186             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
11187                 switch (nvcfg1 & NVRAM_CFG1_VENDOR_MASK) {
11188                 case FLASH_VENDOR_ATMEL_FLASH_BUFFERED:
11189                         tp->nvram_jedecnum = JEDEC_ATMEL;
11190                         tp->nvram_pagesize = ATMEL_AT45DB0X1B_PAGE_SIZE;
11191                         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11192                         break;
11193                 case FLASH_VENDOR_ATMEL_FLASH_UNBUFFERED:
11194                         tp->nvram_jedecnum = JEDEC_ATMEL;
11195                         tp->nvram_pagesize = ATMEL_AT25F512_PAGE_SIZE;
11196                         break;
11197                 case FLASH_VENDOR_ATMEL_EEPROM:
11198                         tp->nvram_jedecnum = JEDEC_ATMEL;
11199                         tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
11200                         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11201                         break;
11202                 case FLASH_VENDOR_ST:
11203                         tp->nvram_jedecnum = JEDEC_ST;
11204                         tp->nvram_pagesize = ST_M45PEX0_PAGE_SIZE;
11205                         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11206                         break;
11207                 case FLASH_VENDOR_SAIFUN:
11208                         tp->nvram_jedecnum = JEDEC_SAIFUN;
11209                         tp->nvram_pagesize = SAIFUN_SA25F0XX_PAGE_SIZE;
11210                         break;
11211                 case FLASH_VENDOR_SST_SMALL:
11212                 case FLASH_VENDOR_SST_LARGE:
11213                         tp->nvram_jedecnum = JEDEC_SST;
11214                         tp->nvram_pagesize = SST_25VF0X0_PAGE_SIZE;
11215                         break;
11216                 }
11217         } else {
11218                 tp->nvram_jedecnum = JEDEC_ATMEL;
11219                 tp->nvram_pagesize = ATMEL_AT45DB0X1B_PAGE_SIZE;
11220                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11221         }
11222 }
11223
11224 static void __devinit tg3_nvram_get_pagesize(struct tg3 *tp, u32 nvmcfg1)
11225 {
11226         switch (nvmcfg1 & NVRAM_CFG1_5752PAGE_SIZE_MASK) {
11227         case FLASH_5752PAGE_SIZE_256:
11228                 tp->nvram_pagesize = 256;
11229                 break;
11230         case FLASH_5752PAGE_SIZE_512:
11231                 tp->nvram_pagesize = 512;
11232                 break;
11233         case FLASH_5752PAGE_SIZE_1K:
11234                 tp->nvram_pagesize = 1024;
11235                 break;
11236         case FLASH_5752PAGE_SIZE_2K:
11237                 tp->nvram_pagesize = 2048;
11238                 break;
11239         case FLASH_5752PAGE_SIZE_4K:
11240                 tp->nvram_pagesize = 4096;
11241                 break;
11242         case FLASH_5752PAGE_SIZE_264:
11243                 tp->nvram_pagesize = 264;
11244                 break;
11245         case FLASH_5752PAGE_SIZE_528:
11246                 tp->nvram_pagesize = 528;
11247                 break;
11248         }
11249 }
11250
11251 static void __devinit tg3_get_5752_nvram_info(struct tg3 *tp)
11252 {
11253         u32 nvcfg1;
11254
11255         nvcfg1 = tr32(NVRAM_CFG1);
11256
11257         /* NVRAM protection for TPM */
11258         if (nvcfg1 & (1 << 27))
11259                 tp->tg3_flags3 |= TG3_FLG3_PROTECTED_NVRAM;
11260
11261         switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11262         case FLASH_5752VENDOR_ATMEL_EEPROM_64KHZ:
11263         case FLASH_5752VENDOR_ATMEL_EEPROM_376KHZ:
11264                 tp->nvram_jedecnum = JEDEC_ATMEL;
11265                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11266                 break;
11267         case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
11268                 tp->nvram_jedecnum = JEDEC_ATMEL;
11269                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11270                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11271                 break;
11272         case FLASH_5752VENDOR_ST_M45PE10:
11273         case FLASH_5752VENDOR_ST_M45PE20:
11274         case FLASH_5752VENDOR_ST_M45PE40:
11275                 tp->nvram_jedecnum = JEDEC_ST;
11276                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11277                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11278                 break;
11279         }
11280
11281         if (tp->tg3_flags2 & TG3_FLG2_FLASH) {
11282                 tg3_nvram_get_pagesize(tp, nvcfg1);
11283         } else {
11284                 /* For eeprom, set pagesize to maximum eeprom size */
11285                 tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
11286
11287                 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
11288                 tw32(NVRAM_CFG1, nvcfg1);
11289         }
11290 }
11291
11292 static void __devinit tg3_get_5755_nvram_info(struct tg3 *tp)
11293 {
11294         u32 nvcfg1, protect = 0;
11295
11296         nvcfg1 = tr32(NVRAM_CFG1);
11297
11298         /* NVRAM protection for TPM */
11299         if (nvcfg1 & (1 << 27)) {
11300                 tp->tg3_flags3 |= TG3_FLG3_PROTECTED_NVRAM;
11301                 protect = 1;
11302         }
11303
11304         nvcfg1 &= NVRAM_CFG1_5752VENDOR_MASK;
11305         switch (nvcfg1) {
11306         case FLASH_5755VENDOR_ATMEL_FLASH_1:
11307         case FLASH_5755VENDOR_ATMEL_FLASH_2:
11308         case FLASH_5755VENDOR_ATMEL_FLASH_3:
11309         case FLASH_5755VENDOR_ATMEL_FLASH_5:
11310                 tp->nvram_jedecnum = JEDEC_ATMEL;
11311                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11312                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11313                 tp->nvram_pagesize = 264;
11314                 if (nvcfg1 == FLASH_5755VENDOR_ATMEL_FLASH_1 ||
11315                     nvcfg1 == FLASH_5755VENDOR_ATMEL_FLASH_5)
11316                         tp->nvram_size = (protect ? 0x3e200 :
11317                                           TG3_NVRAM_SIZE_512KB);
11318                 else if (nvcfg1 == FLASH_5755VENDOR_ATMEL_FLASH_2)
11319                         tp->nvram_size = (protect ? 0x1f200 :
11320                                           TG3_NVRAM_SIZE_256KB);
11321                 else
11322                         tp->nvram_size = (protect ? 0x1f200 :
11323                                           TG3_NVRAM_SIZE_128KB);
11324                 break;
11325         case FLASH_5752VENDOR_ST_M45PE10:
11326         case FLASH_5752VENDOR_ST_M45PE20:
11327         case FLASH_5752VENDOR_ST_M45PE40:
11328                 tp->nvram_jedecnum = JEDEC_ST;
11329                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11330                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11331                 tp->nvram_pagesize = 256;
11332                 if (nvcfg1 == FLASH_5752VENDOR_ST_M45PE10)
11333                         tp->nvram_size = (protect ?
11334                                           TG3_NVRAM_SIZE_64KB :
11335                                           TG3_NVRAM_SIZE_128KB);
11336                 else if (nvcfg1 == FLASH_5752VENDOR_ST_M45PE20)
11337                         tp->nvram_size = (protect ?
11338                                           TG3_NVRAM_SIZE_64KB :
11339                                           TG3_NVRAM_SIZE_256KB);
11340                 else
11341                         tp->nvram_size = (protect ?
11342                                           TG3_NVRAM_SIZE_128KB :
11343                                           TG3_NVRAM_SIZE_512KB);
11344                 break;
11345         }
11346 }
11347
11348 static void __devinit tg3_get_5787_nvram_info(struct tg3 *tp)
11349 {
11350         u32 nvcfg1;
11351
11352         nvcfg1 = tr32(NVRAM_CFG1);
11353
11354         switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11355         case FLASH_5787VENDOR_ATMEL_EEPROM_64KHZ:
11356         case FLASH_5787VENDOR_ATMEL_EEPROM_376KHZ:
11357         case FLASH_5787VENDOR_MICRO_EEPROM_64KHZ:
11358         case FLASH_5787VENDOR_MICRO_EEPROM_376KHZ:
11359                 tp->nvram_jedecnum = JEDEC_ATMEL;
11360                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11361                 tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
11362
11363                 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
11364                 tw32(NVRAM_CFG1, nvcfg1);
11365                 break;
11366         case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
11367         case FLASH_5755VENDOR_ATMEL_FLASH_1:
11368         case FLASH_5755VENDOR_ATMEL_FLASH_2:
11369         case FLASH_5755VENDOR_ATMEL_FLASH_3:
11370                 tp->nvram_jedecnum = JEDEC_ATMEL;
11371                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11372                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11373                 tp->nvram_pagesize = 264;
11374                 break;
11375         case FLASH_5752VENDOR_ST_M45PE10:
11376         case FLASH_5752VENDOR_ST_M45PE20:
11377         case FLASH_5752VENDOR_ST_M45PE40:
11378                 tp->nvram_jedecnum = JEDEC_ST;
11379                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11380                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11381                 tp->nvram_pagesize = 256;
11382                 break;
11383         }
11384 }
11385
11386 static void __devinit tg3_get_5761_nvram_info(struct tg3 *tp)
11387 {
11388         u32 nvcfg1, protect = 0;
11389
11390         nvcfg1 = tr32(NVRAM_CFG1);
11391
11392         /* NVRAM protection for TPM */
11393         if (nvcfg1 & (1 << 27)) {
11394                 tp->tg3_flags3 |= TG3_FLG3_PROTECTED_NVRAM;
11395                 protect = 1;
11396         }
11397
11398         nvcfg1 &= NVRAM_CFG1_5752VENDOR_MASK;
11399         switch (nvcfg1) {
11400         case FLASH_5761VENDOR_ATMEL_ADB021D:
11401         case FLASH_5761VENDOR_ATMEL_ADB041D:
11402         case FLASH_5761VENDOR_ATMEL_ADB081D:
11403         case FLASH_5761VENDOR_ATMEL_ADB161D:
11404         case FLASH_5761VENDOR_ATMEL_MDB021D:
11405         case FLASH_5761VENDOR_ATMEL_MDB041D:
11406         case FLASH_5761VENDOR_ATMEL_MDB081D:
11407         case FLASH_5761VENDOR_ATMEL_MDB161D:
11408                 tp->nvram_jedecnum = JEDEC_ATMEL;
11409                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11410                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11411                 tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM_ADDR_TRANS;
11412                 tp->nvram_pagesize = 256;
11413                 break;
11414         case FLASH_5761VENDOR_ST_A_M45PE20:
11415         case FLASH_5761VENDOR_ST_A_M45PE40:
11416         case FLASH_5761VENDOR_ST_A_M45PE80:
11417         case FLASH_5761VENDOR_ST_A_M45PE16:
11418         case FLASH_5761VENDOR_ST_M_M45PE20:
11419         case FLASH_5761VENDOR_ST_M_M45PE40:
11420         case FLASH_5761VENDOR_ST_M_M45PE80:
11421         case FLASH_5761VENDOR_ST_M_M45PE16:
11422                 tp->nvram_jedecnum = JEDEC_ST;
11423                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11424                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11425                 tp->nvram_pagesize = 256;
11426                 break;
11427         }
11428
11429         if (protect) {
11430                 tp->nvram_size = tr32(NVRAM_ADDR_LOCKOUT);
11431         } else {
11432                 switch (nvcfg1) {
11433                 case FLASH_5761VENDOR_ATMEL_ADB161D:
11434                 case FLASH_5761VENDOR_ATMEL_MDB161D:
11435                 case FLASH_5761VENDOR_ST_A_M45PE16:
11436                 case FLASH_5761VENDOR_ST_M_M45PE16:
11437                         tp->nvram_size = TG3_NVRAM_SIZE_2MB;
11438                         break;
11439                 case FLASH_5761VENDOR_ATMEL_ADB081D:
11440                 case FLASH_5761VENDOR_ATMEL_MDB081D:
11441                 case FLASH_5761VENDOR_ST_A_M45PE80:
11442                 case FLASH_5761VENDOR_ST_M_M45PE80:
11443                         tp->nvram_size = TG3_NVRAM_SIZE_1MB;
11444                         break;
11445                 case FLASH_5761VENDOR_ATMEL_ADB041D:
11446                 case FLASH_5761VENDOR_ATMEL_MDB041D:
11447                 case FLASH_5761VENDOR_ST_A_M45PE40:
11448                 case FLASH_5761VENDOR_ST_M_M45PE40:
11449                         tp->nvram_size = TG3_NVRAM_SIZE_512KB;
11450                         break;
11451                 case FLASH_5761VENDOR_ATMEL_ADB021D:
11452                 case FLASH_5761VENDOR_ATMEL_MDB021D:
11453                 case FLASH_5761VENDOR_ST_A_M45PE20:
11454                 case FLASH_5761VENDOR_ST_M_M45PE20:
11455                         tp->nvram_size = TG3_NVRAM_SIZE_256KB;
11456                         break;
11457                 }
11458         }
11459 }
11460
11461 static void __devinit tg3_get_5906_nvram_info(struct tg3 *tp)
11462 {
11463         tp->nvram_jedecnum = JEDEC_ATMEL;
11464         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11465         tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
11466 }
11467
11468 static void __devinit tg3_get_57780_nvram_info(struct tg3 *tp)
11469 {
11470         u32 nvcfg1;
11471
11472         nvcfg1 = tr32(NVRAM_CFG1);
11473
11474         switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11475         case FLASH_5787VENDOR_ATMEL_EEPROM_376KHZ:
11476         case FLASH_5787VENDOR_MICRO_EEPROM_376KHZ:
11477                 tp->nvram_jedecnum = JEDEC_ATMEL;
11478                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11479                 tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
11480
11481                 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
11482                 tw32(NVRAM_CFG1, nvcfg1);
11483                 return;
11484         case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
11485         case FLASH_57780VENDOR_ATMEL_AT45DB011D:
11486         case FLASH_57780VENDOR_ATMEL_AT45DB011B:
11487         case FLASH_57780VENDOR_ATMEL_AT45DB021D:
11488         case FLASH_57780VENDOR_ATMEL_AT45DB021B:
11489         case FLASH_57780VENDOR_ATMEL_AT45DB041D:
11490         case FLASH_57780VENDOR_ATMEL_AT45DB041B:
11491                 tp->nvram_jedecnum = JEDEC_ATMEL;
11492                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11493                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11494
11495                 switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11496                 case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
11497                 case FLASH_57780VENDOR_ATMEL_AT45DB011D:
11498                 case FLASH_57780VENDOR_ATMEL_AT45DB011B:
11499                         tp->nvram_size = TG3_NVRAM_SIZE_128KB;
11500                         break;
11501                 case FLASH_57780VENDOR_ATMEL_AT45DB021D:
11502                 case FLASH_57780VENDOR_ATMEL_AT45DB021B:
11503                         tp->nvram_size = TG3_NVRAM_SIZE_256KB;
11504                         break;
11505                 case FLASH_57780VENDOR_ATMEL_AT45DB041D:
11506                 case FLASH_57780VENDOR_ATMEL_AT45DB041B:
11507                         tp->nvram_size = TG3_NVRAM_SIZE_512KB;
11508                         break;
11509                 }
11510                 break;
11511         case FLASH_5752VENDOR_ST_M45PE10:
11512         case FLASH_5752VENDOR_ST_M45PE20:
11513         case FLASH_5752VENDOR_ST_M45PE40:
11514                 tp->nvram_jedecnum = JEDEC_ST;
11515                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11516                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11517
11518                 switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11519                 case FLASH_5752VENDOR_ST_M45PE10:
11520                         tp->nvram_size = TG3_NVRAM_SIZE_128KB;
11521                         break;
11522                 case FLASH_5752VENDOR_ST_M45PE20:
11523                         tp->nvram_size = TG3_NVRAM_SIZE_256KB;
11524                         break;
11525                 case FLASH_5752VENDOR_ST_M45PE40:
11526                         tp->nvram_size = TG3_NVRAM_SIZE_512KB;
11527                         break;
11528                 }
11529                 break;
11530         default:
11531                 tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM;
11532                 return;
11533         }
11534
11535         tg3_nvram_get_pagesize(tp, nvcfg1);
11536         if (tp->nvram_pagesize != 264 && tp->nvram_pagesize != 528)
11537                 tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM_ADDR_TRANS;
11538 }
11539
11540
11541 static void __devinit tg3_get_5717_nvram_info(struct tg3 *tp)
11542 {
11543         u32 nvcfg1;
11544
11545         nvcfg1 = tr32(NVRAM_CFG1);
11546
11547         switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11548         case FLASH_5717VENDOR_ATMEL_EEPROM:
11549         case FLASH_5717VENDOR_MICRO_EEPROM:
11550                 tp->nvram_jedecnum = JEDEC_ATMEL;
11551                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11552                 tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
11553
11554                 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
11555                 tw32(NVRAM_CFG1, nvcfg1);
11556                 return;
11557         case FLASH_5717VENDOR_ATMEL_MDB011D:
11558         case FLASH_5717VENDOR_ATMEL_ADB011B:
11559         case FLASH_5717VENDOR_ATMEL_ADB011D:
11560         case FLASH_5717VENDOR_ATMEL_MDB021D:
11561         case FLASH_5717VENDOR_ATMEL_ADB021B:
11562         case FLASH_5717VENDOR_ATMEL_ADB021D:
11563         case FLASH_5717VENDOR_ATMEL_45USPT:
11564                 tp->nvram_jedecnum = JEDEC_ATMEL;
11565                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11566                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11567
11568                 switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11569                 case FLASH_5717VENDOR_ATMEL_MDB021D:
11570                 case FLASH_5717VENDOR_ATMEL_ADB021B:
11571                 case FLASH_5717VENDOR_ATMEL_ADB021D:
11572                         tp->nvram_size = TG3_NVRAM_SIZE_256KB;
11573                         break;
11574                 default:
11575                         tp->nvram_size = TG3_NVRAM_SIZE_128KB;
11576                         break;
11577                 }
11578                 break;
11579         case FLASH_5717VENDOR_ST_M_M25PE10:
11580         case FLASH_5717VENDOR_ST_A_M25PE10:
11581         case FLASH_5717VENDOR_ST_M_M45PE10:
11582         case FLASH_5717VENDOR_ST_A_M45PE10:
11583         case FLASH_5717VENDOR_ST_M_M25PE20:
11584         case FLASH_5717VENDOR_ST_A_M25PE20:
11585         case FLASH_5717VENDOR_ST_M_M45PE20:
11586         case FLASH_5717VENDOR_ST_A_M45PE20:
11587         case FLASH_5717VENDOR_ST_25USPT:
11588         case FLASH_5717VENDOR_ST_45USPT:
11589                 tp->nvram_jedecnum = JEDEC_ST;
11590                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11591                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11592
11593                 switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11594                 case FLASH_5717VENDOR_ST_M_M25PE20:
11595                 case FLASH_5717VENDOR_ST_A_M25PE20:
11596                 case FLASH_5717VENDOR_ST_M_M45PE20:
11597                 case FLASH_5717VENDOR_ST_A_M45PE20:
11598                         tp->nvram_size = TG3_NVRAM_SIZE_256KB;
11599                         break;
11600                 default:
11601                         tp->nvram_size = TG3_NVRAM_SIZE_128KB;
11602                         break;
11603                 }
11604                 break;
11605         default:
11606                 tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM;
11607                 return;
11608         }
11609
11610         tg3_nvram_get_pagesize(tp, nvcfg1);
11611         if (tp->nvram_pagesize != 264 && tp->nvram_pagesize != 528)
11612                 tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM_ADDR_TRANS;
11613 }
11614
11615 /* Chips other than 5700/5701 use the NVRAM for fetching info. */
11616 static void __devinit tg3_nvram_init(struct tg3 *tp)
11617 {
11618         tw32_f(GRC_EEPROM_ADDR,
11619              (EEPROM_ADDR_FSM_RESET |
11620               (EEPROM_DEFAULT_CLOCK_PERIOD <<
11621                EEPROM_ADDR_CLKPERD_SHIFT)));
11622
11623         msleep(1);
11624
11625         /* Enable seeprom accesses. */
11626         tw32_f(GRC_LOCAL_CTRL,
11627              tr32(GRC_LOCAL_CTRL) | GRC_LCLCTRL_AUTO_SEEPROM);
11628         udelay(100);
11629
11630         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
11631             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701) {
11632                 tp->tg3_flags |= TG3_FLAG_NVRAM;
11633
11634                 if (tg3_nvram_lock(tp)) {
11635                         netdev_warn(tp->dev,
11636                                     "Cannot get nvram lock, %s failed\n",
11637                                     __func__);
11638                         return;
11639                 }
11640                 tg3_enable_nvram_access(tp);
11641
11642                 tp->nvram_size = 0;
11643
11644                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752)
11645                         tg3_get_5752_nvram_info(tp);
11646                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755)
11647                         tg3_get_5755_nvram_info(tp);
11648                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5787 ||
11649                          GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
11650                          GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
11651                         tg3_get_5787_nvram_info(tp);
11652                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761)
11653                         tg3_get_5761_nvram_info(tp);
11654                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
11655                         tg3_get_5906_nvram_info(tp);
11656                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 ||
11657                          GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
11658                         tg3_get_57780_nvram_info(tp);
11659                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
11660                          GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719)
11661                         tg3_get_5717_nvram_info(tp);
11662                 else
11663                         tg3_get_nvram_info(tp);
11664
11665                 if (tp->nvram_size == 0)
11666                         tg3_get_nvram_size(tp);
11667
11668                 tg3_disable_nvram_access(tp);
11669                 tg3_nvram_unlock(tp);
11670
11671         } else {
11672                 tp->tg3_flags &= ~(TG3_FLAG_NVRAM | TG3_FLAG_NVRAM_BUFFERED);
11673
11674                 tg3_get_eeprom_size(tp);
11675         }
11676 }
11677
11678 static int tg3_nvram_write_block_using_eeprom(struct tg3 *tp,
11679                                     u32 offset, u32 len, u8 *buf)
11680 {
11681         int i, j, rc = 0;
11682         u32 val;
11683
11684         for (i = 0; i < len; i += 4) {
11685                 u32 addr;
11686                 __be32 data;
11687
11688                 addr = offset + i;
11689
11690                 memcpy(&data, buf + i, 4);
11691
11692                 /*
11693                  * The SEEPROM interface expects the data to always be opposite
11694                  * the native endian format.  We accomplish this by reversing
11695                  * all the operations that would have been performed on the
11696                  * data from a call to tg3_nvram_read_be32().
11697                  */
11698                 tw32(GRC_EEPROM_DATA, swab32(be32_to_cpu(data)));
11699
11700                 val = tr32(GRC_EEPROM_ADDR);
11701                 tw32(GRC_EEPROM_ADDR, val | EEPROM_ADDR_COMPLETE);
11702
11703                 val &= ~(EEPROM_ADDR_ADDR_MASK | EEPROM_ADDR_DEVID_MASK |
11704                         EEPROM_ADDR_READ);
11705                 tw32(GRC_EEPROM_ADDR, val |
11706                         (0 << EEPROM_ADDR_DEVID_SHIFT) |
11707                         (addr & EEPROM_ADDR_ADDR_MASK) |
11708                         EEPROM_ADDR_START |
11709                         EEPROM_ADDR_WRITE);
11710
11711                 for (j = 0; j < 1000; j++) {
11712                         val = tr32(GRC_EEPROM_ADDR);
11713
11714                         if (val & EEPROM_ADDR_COMPLETE)
11715                                 break;
11716                         msleep(1);
11717                 }
11718                 if (!(val & EEPROM_ADDR_COMPLETE)) {
11719                         rc = -EBUSY;
11720                         break;
11721                 }
11722         }
11723
11724         return rc;
11725 }
11726
11727 /* offset and length are dword aligned */
11728 static int tg3_nvram_write_block_unbuffered(struct tg3 *tp, u32 offset, u32 len,
11729                 u8 *buf)
11730 {
11731         int ret = 0;
11732         u32 pagesize = tp->nvram_pagesize;
11733         u32 pagemask = pagesize - 1;
11734         u32 nvram_cmd;
11735         u8 *tmp;
11736
11737         tmp = kmalloc(pagesize, GFP_KERNEL);
11738         if (tmp == NULL)
11739                 return -ENOMEM;
11740
11741         while (len) {
11742                 int j;
11743                 u32 phy_addr, page_off, size;
11744
11745                 phy_addr = offset & ~pagemask;
11746
11747                 for (j = 0; j < pagesize; j += 4) {
11748                         ret = tg3_nvram_read_be32(tp, phy_addr + j,
11749                                                   (__be32 *) (tmp + j));
11750                         if (ret)
11751                                 break;
11752                 }
11753                 if (ret)
11754                         break;
11755
11756                 page_off = offset & pagemask;
11757                 size = pagesize;
11758                 if (len < size)
11759                         size = len;
11760
11761                 len -= size;
11762
11763                 memcpy(tmp + page_off, buf, size);
11764
11765                 offset = offset + (pagesize - page_off);
11766
11767                 tg3_enable_nvram_access(tp);
11768
11769                 /*
11770                  * Before we can erase the flash page, we need
11771                  * to issue a special "write enable" command.
11772                  */
11773                 nvram_cmd = NVRAM_CMD_WREN | NVRAM_CMD_GO | NVRAM_CMD_DONE;
11774
11775                 if (tg3_nvram_exec_cmd(tp, nvram_cmd))
11776                         break;
11777
11778                 /* Erase the target page */
11779                 tw32(NVRAM_ADDR, phy_addr);
11780
11781                 nvram_cmd = NVRAM_CMD_GO | NVRAM_CMD_DONE | NVRAM_CMD_WR |
11782                         NVRAM_CMD_FIRST | NVRAM_CMD_LAST | NVRAM_CMD_ERASE;
11783
11784                 if (tg3_nvram_exec_cmd(tp, nvram_cmd))
11785                         break;
11786
11787                 /* Issue another write enable to start the write. */
11788                 nvram_cmd = NVRAM_CMD_WREN | NVRAM_CMD_GO | NVRAM_CMD_DONE;
11789
11790                 if (tg3_nvram_exec_cmd(tp, nvram_cmd))
11791                         break;
11792
11793                 for (j = 0; j < pagesize; j += 4) {
11794                         __be32 data;
11795
11796                         data = *((__be32 *) (tmp + j));
11797
11798                         tw32(NVRAM_WRDATA, be32_to_cpu(data));
11799
11800                         tw32(NVRAM_ADDR, phy_addr + j);
11801
11802                         nvram_cmd = NVRAM_CMD_GO | NVRAM_CMD_DONE |
11803                                 NVRAM_CMD_WR;
11804
11805                         if (j == 0)
11806                                 nvram_cmd |= NVRAM_CMD_FIRST;
11807                         else if (j == (pagesize - 4))
11808                                 nvram_cmd |= NVRAM_CMD_LAST;
11809
11810                         if ((ret = tg3_nvram_exec_cmd(tp, nvram_cmd)))
11811                                 break;
11812                 }
11813                 if (ret)
11814                         break;
11815         }
11816
11817         nvram_cmd = NVRAM_CMD_WRDI | NVRAM_CMD_GO | NVRAM_CMD_DONE;
11818         tg3_nvram_exec_cmd(tp, nvram_cmd);
11819
11820         kfree(tmp);
11821
11822         return ret;
11823 }
11824
11825 /* offset and length are dword aligned */
11826 static int tg3_nvram_write_block_buffered(struct tg3 *tp, u32 offset, u32 len,
11827                 u8 *buf)
11828 {
11829         int i, ret = 0;
11830
11831         for (i = 0; i < len; i += 4, offset += 4) {
11832                 u32 page_off, phy_addr, nvram_cmd;
11833                 __be32 data;
11834
11835                 memcpy(&data, buf + i, 4);
11836                 tw32(NVRAM_WRDATA, be32_to_cpu(data));
11837
11838                 page_off = offset % tp->nvram_pagesize;
11839
11840                 phy_addr = tg3_nvram_phys_addr(tp, offset);
11841
11842                 tw32(NVRAM_ADDR, phy_addr);
11843
11844                 nvram_cmd = NVRAM_CMD_GO | NVRAM_CMD_DONE | NVRAM_CMD_WR;
11845
11846                 if (page_off == 0 || i == 0)
11847                         nvram_cmd |= NVRAM_CMD_FIRST;
11848                 if (page_off == (tp->nvram_pagesize - 4))
11849                         nvram_cmd |= NVRAM_CMD_LAST;
11850
11851                 if (i == (len - 4))
11852                         nvram_cmd |= NVRAM_CMD_LAST;
11853
11854                 if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5752 &&
11855                     !(tp->tg3_flags3 & TG3_FLG3_5755_PLUS) &&
11856                     (tp->nvram_jedecnum == JEDEC_ST) &&
11857                     (nvram_cmd & NVRAM_CMD_FIRST)) {
11858
11859                         if ((ret = tg3_nvram_exec_cmd(tp,
11860                                 NVRAM_CMD_WREN | NVRAM_CMD_GO |
11861                                 NVRAM_CMD_DONE)))
11862
11863                                 break;
11864                 }
11865                 if (!(tp->tg3_flags2 & TG3_FLG2_FLASH)) {
11866                         /* We always do complete word writes to eeprom. */
11867                         nvram_cmd |= (NVRAM_CMD_FIRST | NVRAM_CMD_LAST);
11868                 }
11869
11870                 if ((ret = tg3_nvram_exec_cmd(tp, nvram_cmd)))
11871                         break;
11872         }
11873         return ret;
11874 }
11875
11876 /* offset and length are dword aligned */
11877 static int tg3_nvram_write_block(struct tg3 *tp, u32 offset, u32 len, u8 *buf)
11878 {
11879         int ret;
11880
11881         if (tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT) {
11882                 tw32_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl &
11883                        ~GRC_LCLCTRL_GPIO_OUTPUT1);
11884                 udelay(40);
11885         }
11886
11887         if (!(tp->tg3_flags & TG3_FLAG_NVRAM)) {
11888                 ret = tg3_nvram_write_block_using_eeprom(tp, offset, len, buf);
11889         } else {
11890                 u32 grc_mode;
11891
11892                 ret = tg3_nvram_lock(tp);
11893                 if (ret)
11894                         return ret;
11895
11896                 tg3_enable_nvram_access(tp);
11897                 if ((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
11898                     !(tp->tg3_flags3 & TG3_FLG3_PROTECTED_NVRAM))
11899                         tw32(NVRAM_WRITE1, 0x406);
11900
11901                 grc_mode = tr32(GRC_MODE);
11902                 tw32(GRC_MODE, grc_mode | GRC_MODE_NVRAM_WR_ENABLE);
11903
11904                 if ((tp->tg3_flags & TG3_FLAG_NVRAM_BUFFERED) ||
11905                         !(tp->tg3_flags2 & TG3_FLG2_FLASH)) {
11906
11907                         ret = tg3_nvram_write_block_buffered(tp, offset, len,
11908                                 buf);
11909                 } else {
11910                         ret = tg3_nvram_write_block_unbuffered(tp, offset, len,
11911                                 buf);
11912                 }
11913
11914                 grc_mode = tr32(GRC_MODE);
11915                 tw32(GRC_MODE, grc_mode & ~GRC_MODE_NVRAM_WR_ENABLE);
11916
11917                 tg3_disable_nvram_access(tp);
11918                 tg3_nvram_unlock(tp);
11919         }
11920
11921         if (tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT) {
11922                 tw32_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl);
11923                 udelay(40);
11924         }
11925
11926         return ret;
11927 }
11928
11929 struct subsys_tbl_ent {
11930         u16 subsys_vendor, subsys_devid;
11931         u32 phy_id;
11932 };
11933
11934 static struct subsys_tbl_ent subsys_id_to_phy_id[] __devinitdata = {
11935         /* Broadcom boards. */
11936         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11937           TG3PCI_SUBDEVICE_ID_BROADCOM_95700A6, TG3_PHY_ID_BCM5401 },
11938         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11939           TG3PCI_SUBDEVICE_ID_BROADCOM_95701A5, TG3_PHY_ID_BCM5701 },
11940         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11941           TG3PCI_SUBDEVICE_ID_BROADCOM_95700T6, TG3_PHY_ID_BCM8002 },
11942         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11943           TG3PCI_SUBDEVICE_ID_BROADCOM_95700A9, 0 },
11944         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11945           TG3PCI_SUBDEVICE_ID_BROADCOM_95701T1, TG3_PHY_ID_BCM5701 },
11946         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11947           TG3PCI_SUBDEVICE_ID_BROADCOM_95701T8, TG3_PHY_ID_BCM5701 },
11948         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11949           TG3PCI_SUBDEVICE_ID_BROADCOM_95701A7, 0 },
11950         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11951           TG3PCI_SUBDEVICE_ID_BROADCOM_95701A10, TG3_PHY_ID_BCM5701 },
11952         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11953           TG3PCI_SUBDEVICE_ID_BROADCOM_95701A12, TG3_PHY_ID_BCM5701 },
11954         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11955           TG3PCI_SUBDEVICE_ID_BROADCOM_95703AX1, TG3_PHY_ID_BCM5703 },
11956         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11957           TG3PCI_SUBDEVICE_ID_BROADCOM_95703AX2, TG3_PHY_ID_BCM5703 },
11958
11959         /* 3com boards. */
11960         { TG3PCI_SUBVENDOR_ID_3COM,
11961           TG3PCI_SUBDEVICE_ID_3COM_3C996T, TG3_PHY_ID_BCM5401 },
11962         { TG3PCI_SUBVENDOR_ID_3COM,
11963           TG3PCI_SUBDEVICE_ID_3COM_3C996BT, TG3_PHY_ID_BCM5701 },
11964         { TG3PCI_SUBVENDOR_ID_3COM,
11965           TG3PCI_SUBDEVICE_ID_3COM_3C996SX, 0 },
11966         { TG3PCI_SUBVENDOR_ID_3COM,
11967           TG3PCI_SUBDEVICE_ID_3COM_3C1000T, TG3_PHY_ID_BCM5701 },
11968         { TG3PCI_SUBVENDOR_ID_3COM,
11969           TG3PCI_SUBDEVICE_ID_3COM_3C940BR01, TG3_PHY_ID_BCM5701 },
11970
11971         /* DELL boards. */
11972         { TG3PCI_SUBVENDOR_ID_DELL,
11973           TG3PCI_SUBDEVICE_ID_DELL_VIPER, TG3_PHY_ID_BCM5401 },
11974         { TG3PCI_SUBVENDOR_ID_DELL,
11975           TG3PCI_SUBDEVICE_ID_DELL_JAGUAR, TG3_PHY_ID_BCM5401 },
11976         { TG3PCI_SUBVENDOR_ID_DELL,
11977           TG3PCI_SUBDEVICE_ID_DELL_MERLOT, TG3_PHY_ID_BCM5411 },
11978         { TG3PCI_SUBVENDOR_ID_DELL,
11979           TG3PCI_SUBDEVICE_ID_DELL_SLIM_MERLOT, TG3_PHY_ID_BCM5411 },
11980
11981         /* Compaq boards. */
11982         { TG3PCI_SUBVENDOR_ID_COMPAQ,
11983           TG3PCI_SUBDEVICE_ID_COMPAQ_BANSHEE, TG3_PHY_ID_BCM5701 },
11984         { TG3PCI_SUBVENDOR_ID_COMPAQ,
11985           TG3PCI_SUBDEVICE_ID_COMPAQ_BANSHEE_2, TG3_PHY_ID_BCM5701 },
11986         { TG3PCI_SUBVENDOR_ID_COMPAQ,
11987           TG3PCI_SUBDEVICE_ID_COMPAQ_CHANGELING, 0 },
11988         { TG3PCI_SUBVENDOR_ID_COMPAQ,
11989           TG3PCI_SUBDEVICE_ID_COMPAQ_NC7780, TG3_PHY_ID_BCM5701 },
11990         { TG3PCI_SUBVENDOR_ID_COMPAQ,
11991           TG3PCI_SUBDEVICE_ID_COMPAQ_NC7780_2, TG3_PHY_ID_BCM5701 },
11992
11993         /* IBM boards. */
11994         { TG3PCI_SUBVENDOR_ID_IBM,
11995           TG3PCI_SUBDEVICE_ID_IBM_5703SAX2, 0 }
11996 };
11997
11998 static struct subsys_tbl_ent * __devinit tg3_lookup_by_subsys(struct tg3 *tp)
11999 {
12000         int i;
12001
12002         for (i = 0; i < ARRAY_SIZE(subsys_id_to_phy_id); i++) {
12003                 if ((subsys_id_to_phy_id[i].subsys_vendor ==
12004                      tp->pdev->subsystem_vendor) &&
12005                     (subsys_id_to_phy_id[i].subsys_devid ==
12006                      tp->pdev->subsystem_device))
12007                         return &subsys_id_to_phy_id[i];
12008         }
12009         return NULL;
12010 }
12011
12012 static void __devinit tg3_get_eeprom_hw_cfg(struct tg3 *tp)
12013 {
12014         u32 val;
12015         u16 pmcsr;
12016
12017         /* On some early chips the SRAM cannot be accessed in D3hot state,
12018          * so need make sure we're in D0.
12019          */
12020         pci_read_config_word(tp->pdev, tp->pm_cap + PCI_PM_CTRL, &pmcsr);
12021         pmcsr &= ~PCI_PM_CTRL_STATE_MASK;
12022         pci_write_config_word(tp->pdev, tp->pm_cap + PCI_PM_CTRL, pmcsr);
12023         msleep(1);
12024
12025         /* Make sure register accesses (indirect or otherwise)
12026          * will function correctly.
12027          */
12028         pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
12029                                tp->misc_host_ctrl);
12030
12031         /* The memory arbiter has to be enabled in order for SRAM accesses
12032          * to succeed.  Normally on powerup the tg3 chip firmware will make
12033          * sure it is enabled, but other entities such as system netboot
12034          * code might disable it.
12035          */
12036         val = tr32(MEMARB_MODE);
12037         tw32(MEMARB_MODE, val | MEMARB_MODE_ENABLE);
12038
12039         tp->phy_id = TG3_PHY_ID_INVALID;
12040         tp->led_ctrl = LED_CTRL_MODE_PHY_1;
12041
12042         /* Assume an onboard device and WOL capable by default.  */
12043         tp->tg3_flags |= TG3_FLAG_EEPROM_WRITE_PROT | TG3_FLAG_WOL_CAP;
12044
12045         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
12046                 if (!(tr32(PCIE_TRANSACTION_CFG) & PCIE_TRANS_CFG_LOM)) {
12047                         tp->tg3_flags &= ~TG3_FLAG_EEPROM_WRITE_PROT;
12048                         tp->tg3_flags2 |= TG3_FLG2_IS_NIC;
12049                 }
12050                 val = tr32(VCPU_CFGSHDW);
12051                 if (val & VCPU_CFGSHDW_ASPM_DBNC)
12052                         tp->tg3_flags |= TG3_FLAG_ASPM_WORKAROUND;
12053                 if ((val & VCPU_CFGSHDW_WOL_ENABLE) &&
12054                     (val & VCPU_CFGSHDW_WOL_MAGPKT))
12055                         tp->tg3_flags |= TG3_FLAG_WOL_ENABLE;
12056                 goto done;
12057         }
12058
12059         tg3_read_mem(tp, NIC_SRAM_DATA_SIG, &val);
12060         if (val == NIC_SRAM_DATA_SIG_MAGIC) {
12061                 u32 nic_cfg, led_cfg;
12062                 u32 nic_phy_id, ver, cfg2 = 0, cfg4 = 0, eeprom_phy_id;
12063                 int eeprom_phy_serdes = 0;
12064
12065                 tg3_read_mem(tp, NIC_SRAM_DATA_CFG, &nic_cfg);
12066                 tp->nic_sram_data_cfg = nic_cfg;
12067
12068                 tg3_read_mem(tp, NIC_SRAM_DATA_VER, &ver);
12069                 ver >>= NIC_SRAM_DATA_VER_SHIFT;
12070                 if ((GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700) &&
12071                     (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701) &&
12072                     (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5703) &&
12073                     (ver > 0) && (ver < 0x100))
12074                         tg3_read_mem(tp, NIC_SRAM_DATA_CFG_2, &cfg2);
12075
12076                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
12077                         tg3_read_mem(tp, NIC_SRAM_DATA_CFG_4, &cfg4);
12078
12079                 if ((nic_cfg & NIC_SRAM_DATA_CFG_PHY_TYPE_MASK) ==
12080                     NIC_SRAM_DATA_CFG_PHY_TYPE_FIBER)
12081                         eeprom_phy_serdes = 1;
12082
12083                 tg3_read_mem(tp, NIC_SRAM_DATA_PHY_ID, &nic_phy_id);
12084                 if (nic_phy_id != 0) {
12085                         u32 id1 = nic_phy_id & NIC_SRAM_DATA_PHY_ID1_MASK;
12086                         u32 id2 = nic_phy_id & NIC_SRAM_DATA_PHY_ID2_MASK;
12087
12088                         eeprom_phy_id  = (id1 >> 16) << 10;
12089                         eeprom_phy_id |= (id2 & 0xfc00) << 16;
12090                         eeprom_phy_id |= (id2 & 0x03ff) <<  0;
12091                 } else
12092                         eeprom_phy_id = 0;
12093
12094                 tp->phy_id = eeprom_phy_id;
12095                 if (eeprom_phy_serdes) {
12096                         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
12097                                 tp->phy_flags |= TG3_PHYFLG_PHY_SERDES;
12098                         else
12099                                 tp->phy_flags |= TG3_PHYFLG_MII_SERDES;
12100                 }
12101
12102                 if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS)
12103                         led_cfg = cfg2 & (NIC_SRAM_DATA_CFG_LED_MODE_MASK |
12104                                     SHASTA_EXT_LED_MODE_MASK);
12105                 else
12106                         led_cfg = nic_cfg & NIC_SRAM_DATA_CFG_LED_MODE_MASK;
12107
12108                 switch (led_cfg) {
12109                 default:
12110                 case NIC_SRAM_DATA_CFG_LED_MODE_PHY_1:
12111                         tp->led_ctrl = LED_CTRL_MODE_PHY_1;
12112                         break;
12113
12114                 case NIC_SRAM_DATA_CFG_LED_MODE_PHY_2:
12115                         tp->led_ctrl = LED_CTRL_MODE_PHY_2;
12116                         break;
12117
12118                 case NIC_SRAM_DATA_CFG_LED_MODE_MAC:
12119                         tp->led_ctrl = LED_CTRL_MODE_MAC;
12120
12121                         /* Default to PHY_1_MODE if 0 (MAC_MODE) is
12122                          * read on some older 5700/5701 bootcode.
12123                          */
12124                         if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
12125                             ASIC_REV_5700 ||
12126                             GET_ASIC_REV(tp->pci_chip_rev_id) ==
12127                             ASIC_REV_5701)
12128                                 tp->led_ctrl = LED_CTRL_MODE_PHY_1;
12129
12130                         break;
12131
12132                 case SHASTA_EXT_LED_SHARED:
12133                         tp->led_ctrl = LED_CTRL_MODE_SHARED;
12134                         if (tp->pci_chip_rev_id != CHIPREV_ID_5750_A0 &&
12135                             tp->pci_chip_rev_id != CHIPREV_ID_5750_A1)
12136                                 tp->led_ctrl |= (LED_CTRL_MODE_PHY_1 |
12137                                                  LED_CTRL_MODE_PHY_2);
12138                         break;
12139
12140                 case SHASTA_EXT_LED_MAC:
12141                         tp->led_ctrl = LED_CTRL_MODE_SHASTA_MAC;
12142                         break;
12143
12144                 case SHASTA_EXT_LED_COMBO:
12145                         tp->led_ctrl = LED_CTRL_MODE_COMBO;
12146                         if (tp->pci_chip_rev_id != CHIPREV_ID_5750_A0)
12147                                 tp->led_ctrl |= (LED_CTRL_MODE_PHY_1 |
12148                                                  LED_CTRL_MODE_PHY_2);
12149                         break;
12150
12151                 }
12152
12153                 if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
12154                      GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) &&
12155                     tp->pdev->subsystem_vendor == PCI_VENDOR_ID_DELL)
12156                         tp->led_ctrl = LED_CTRL_MODE_PHY_2;
12157
12158                 if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX)
12159                         tp->led_ctrl = LED_CTRL_MODE_PHY_1;
12160
12161                 if (nic_cfg & NIC_SRAM_DATA_CFG_EEPROM_WP) {
12162                         tp->tg3_flags |= TG3_FLAG_EEPROM_WRITE_PROT;
12163                         if ((tp->pdev->subsystem_vendor ==
12164                              PCI_VENDOR_ID_ARIMA) &&
12165                             (tp->pdev->subsystem_device == 0x205a ||
12166                              tp->pdev->subsystem_device == 0x2063))
12167                                 tp->tg3_flags &= ~TG3_FLAG_EEPROM_WRITE_PROT;
12168                 } else {
12169                         tp->tg3_flags &= ~TG3_FLAG_EEPROM_WRITE_PROT;
12170                         tp->tg3_flags2 |= TG3_FLG2_IS_NIC;
12171                 }
12172
12173                 if (nic_cfg & NIC_SRAM_DATA_CFG_ASF_ENABLE) {
12174                         tp->tg3_flags |= TG3_FLAG_ENABLE_ASF;
12175                         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS)
12176                                 tp->tg3_flags2 |= TG3_FLG2_ASF_NEW_HANDSHAKE;
12177                 }
12178
12179                 if ((nic_cfg & NIC_SRAM_DATA_CFG_APE_ENABLE) &&
12180                         (tp->tg3_flags2 & TG3_FLG2_5750_PLUS))
12181                         tp->tg3_flags3 |= TG3_FLG3_ENABLE_APE;
12182
12183                 if (tp->phy_flags & TG3_PHYFLG_ANY_SERDES &&
12184                     !(nic_cfg & NIC_SRAM_DATA_CFG_FIBER_WOL))
12185                         tp->tg3_flags &= ~TG3_FLAG_WOL_CAP;
12186
12187                 if ((tp->tg3_flags & TG3_FLAG_WOL_CAP) &&
12188                     (nic_cfg & NIC_SRAM_DATA_CFG_WOL_ENABLE))
12189                         tp->tg3_flags |= TG3_FLAG_WOL_ENABLE;
12190
12191                 if (cfg2 & (1 << 17))
12192                         tp->phy_flags |= TG3_PHYFLG_CAPACITIVE_COUPLING;
12193
12194                 /* serdes signal pre-emphasis in register 0x590 set by */
12195                 /* bootcode if bit 18 is set */
12196                 if (cfg2 & (1 << 18))
12197                         tp->phy_flags |= TG3_PHYFLG_SERDES_PREEMPHASIS;
12198
12199                 if (((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
12200                       GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX)) &&
12201                     (cfg2 & NIC_SRAM_DATA_CFG_2_APD_EN))
12202                         tp->phy_flags |= TG3_PHYFLG_ENABLE_APD;
12203
12204                 if ((tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) &&
12205                     GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785 &&
12206                     !(tp->tg3_flags3 & TG3_FLG3_5717_PLUS)) {
12207                         u32 cfg3;
12208
12209                         tg3_read_mem(tp, NIC_SRAM_DATA_CFG_3, &cfg3);
12210                         if (cfg3 & NIC_SRAM_ASPM_DEBOUNCE)
12211                                 tp->tg3_flags |= TG3_FLAG_ASPM_WORKAROUND;
12212                 }
12213
12214                 if (cfg4 & NIC_SRAM_RGMII_INBAND_DISABLE)
12215                         tp->tg3_flags3 |= TG3_FLG3_RGMII_INBAND_DISABLE;
12216                 if (cfg4 & NIC_SRAM_RGMII_EXT_IBND_RX_EN)
12217                         tp->tg3_flags3 |= TG3_FLG3_RGMII_EXT_IBND_RX_EN;
12218                 if (cfg4 & NIC_SRAM_RGMII_EXT_IBND_TX_EN)
12219                         tp->tg3_flags3 |= TG3_FLG3_RGMII_EXT_IBND_TX_EN;
12220         }
12221 done:
12222         device_init_wakeup(&tp->pdev->dev, tp->tg3_flags & TG3_FLAG_WOL_CAP);
12223         device_set_wakeup_enable(&tp->pdev->dev,
12224                                  tp->tg3_flags & TG3_FLAG_WOL_ENABLE);
12225 }
12226
12227 static int __devinit tg3_issue_otp_command(struct tg3 *tp, u32 cmd)
12228 {
12229         int i;
12230         u32 val;
12231
12232         tw32(OTP_CTRL, cmd | OTP_CTRL_OTP_CMD_START);
12233         tw32(OTP_CTRL, cmd);
12234
12235         /* Wait for up to 1 ms for command to execute. */
12236         for (i = 0; i < 100; i++) {
12237                 val = tr32(OTP_STATUS);
12238                 if (val & OTP_STATUS_CMD_DONE)
12239                         break;
12240                 udelay(10);
12241         }
12242
12243         return (val & OTP_STATUS_CMD_DONE) ? 0 : -EBUSY;
12244 }
12245
12246 /* Read the gphy configuration from the OTP region of the chip.  The gphy
12247  * configuration is a 32-bit value that straddles the alignment boundary.
12248  * We do two 32-bit reads and then shift and merge the results.
12249  */
12250 static u32 __devinit tg3_read_otp_phycfg(struct tg3 *tp)
12251 {
12252         u32 bhalf_otp, thalf_otp;
12253
12254         tw32(OTP_MODE, OTP_MODE_OTP_THRU_GRC);
12255
12256         if (tg3_issue_otp_command(tp, OTP_CTRL_OTP_CMD_INIT))
12257                 return 0;
12258
12259         tw32(OTP_ADDRESS, OTP_ADDRESS_MAGIC1);
12260
12261         if (tg3_issue_otp_command(tp, OTP_CTRL_OTP_CMD_READ))
12262                 return 0;
12263
12264         thalf_otp = tr32(OTP_READ_DATA);
12265
12266         tw32(OTP_ADDRESS, OTP_ADDRESS_MAGIC2);
12267
12268         if (tg3_issue_otp_command(tp, OTP_CTRL_OTP_CMD_READ))
12269                 return 0;
12270
12271         bhalf_otp = tr32(OTP_READ_DATA);
12272
12273         return ((thalf_otp & 0x0000ffff) << 16) | (bhalf_otp >> 16);
12274 }
12275
12276 static int __devinit tg3_phy_probe(struct tg3 *tp)
12277 {
12278         u32 hw_phy_id_1, hw_phy_id_2;
12279         u32 hw_phy_id, hw_phy_id_masked;
12280         int err;
12281
12282         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB)
12283                 return tg3_phy_init(tp);
12284
12285         /* Reading the PHY ID register can conflict with ASF
12286          * firmware access to the PHY hardware.
12287          */
12288         err = 0;
12289         if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) ||
12290             (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)) {
12291                 hw_phy_id = hw_phy_id_masked = TG3_PHY_ID_INVALID;
12292         } else {
12293                 /* Now read the physical PHY_ID from the chip and verify
12294                  * that it is sane.  If it doesn't look good, we fall back
12295                  * to either the hard-coded table based PHY_ID and failing
12296                  * that the value found in the eeprom area.
12297                  */
12298                 err |= tg3_readphy(tp, MII_PHYSID1, &hw_phy_id_1);
12299                 err |= tg3_readphy(tp, MII_PHYSID2, &hw_phy_id_2);
12300
12301                 hw_phy_id  = (hw_phy_id_1 & 0xffff) << 10;
12302                 hw_phy_id |= (hw_phy_id_2 & 0xfc00) << 16;
12303                 hw_phy_id |= (hw_phy_id_2 & 0x03ff) <<  0;
12304
12305                 hw_phy_id_masked = hw_phy_id & TG3_PHY_ID_MASK;
12306         }
12307
12308         if (!err && TG3_KNOWN_PHY_ID(hw_phy_id_masked)) {
12309                 tp->phy_id = hw_phy_id;
12310                 if (hw_phy_id_masked == TG3_PHY_ID_BCM8002)
12311                         tp->phy_flags |= TG3_PHYFLG_PHY_SERDES;
12312                 else
12313                         tp->phy_flags &= ~TG3_PHYFLG_PHY_SERDES;
12314         } else {
12315                 if (tp->phy_id != TG3_PHY_ID_INVALID) {
12316                         /* Do nothing, phy ID already set up in
12317                          * tg3_get_eeprom_hw_cfg().
12318                          */
12319                 } else {
12320                         struct subsys_tbl_ent *p;
12321
12322                         /* No eeprom signature?  Try the hardcoded
12323                          * subsys device table.
12324                          */
12325                         p = tg3_lookup_by_subsys(tp);
12326                         if (!p)
12327                                 return -ENODEV;
12328
12329                         tp->phy_id = p->phy_id;
12330                         if (!tp->phy_id ||
12331                             tp->phy_id == TG3_PHY_ID_BCM8002)
12332                                 tp->phy_flags |= TG3_PHYFLG_PHY_SERDES;
12333                 }
12334         }
12335
12336         if (!(tp->phy_flags & TG3_PHYFLG_ANY_SERDES) &&
12337             !(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) &&
12338             !(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)) {
12339                 u32 bmsr, adv_reg, tg3_ctrl, mask;
12340
12341                 tg3_readphy(tp, MII_BMSR, &bmsr);
12342                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
12343                     (bmsr & BMSR_LSTATUS))
12344                         goto skip_phy_reset;
12345
12346                 err = tg3_phy_reset(tp);
12347                 if (err)
12348                         return err;
12349
12350                 adv_reg = (ADVERTISE_10HALF | ADVERTISE_10FULL |
12351                            ADVERTISE_100HALF | ADVERTISE_100FULL |
12352                            ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
12353                 tg3_ctrl = 0;
12354                 if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY)) {
12355                         tg3_ctrl = (MII_TG3_CTRL_ADV_1000_HALF |
12356                                     MII_TG3_CTRL_ADV_1000_FULL);
12357                         if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
12358                             tp->pci_chip_rev_id == CHIPREV_ID_5701_B0)
12359                                 tg3_ctrl |= (MII_TG3_CTRL_AS_MASTER |
12360                                              MII_TG3_CTRL_ENABLE_AS_MASTER);
12361                 }
12362
12363                 mask = (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full |
12364                         ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full |
12365                         ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full);
12366                 if (!tg3_copper_is_advertising_all(tp, mask)) {
12367                         tg3_writephy(tp, MII_ADVERTISE, adv_reg);
12368
12369                         if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY))
12370                                 tg3_writephy(tp, MII_TG3_CTRL, tg3_ctrl);
12371
12372                         tg3_writephy(tp, MII_BMCR,
12373                                      BMCR_ANENABLE | BMCR_ANRESTART);
12374                 }
12375                 tg3_phy_set_wirespeed(tp);
12376
12377                 tg3_writephy(tp, MII_ADVERTISE, adv_reg);
12378                 if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY))
12379                         tg3_writephy(tp, MII_TG3_CTRL, tg3_ctrl);
12380         }
12381
12382 skip_phy_reset:
12383         if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5401) {
12384                 err = tg3_init_5401phy_dsp(tp);
12385                 if (err)
12386                         return err;
12387
12388                 err = tg3_init_5401phy_dsp(tp);
12389         }
12390
12391         if (tp->phy_flags & TG3_PHYFLG_ANY_SERDES)
12392                 tp->link_config.advertising =
12393                         (ADVERTISED_1000baseT_Half |
12394                          ADVERTISED_1000baseT_Full |
12395                          ADVERTISED_Autoneg |
12396                          ADVERTISED_FIBRE);
12397         if (tp->phy_flags & TG3_PHYFLG_10_100_ONLY)
12398                 tp->link_config.advertising &=
12399                         ~(ADVERTISED_1000baseT_Half |
12400                           ADVERTISED_1000baseT_Full);
12401
12402         return err;
12403 }
12404
12405 static void __devinit tg3_read_vpd(struct tg3 *tp)
12406 {
12407         u8 vpd_data[TG3_NVM_VPD_LEN];
12408         unsigned int block_end, rosize, len;
12409         int j, i = 0;
12410         u32 magic;
12411
12412         if ((tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) ||
12413             tg3_nvram_read(tp, 0x0, &magic))
12414                 goto out_not_found;
12415
12416         if (magic == TG3_EEPROM_MAGIC) {
12417                 for (i = 0; i < TG3_NVM_VPD_LEN; i += 4) {
12418                         u32 tmp;
12419
12420                         /* The data is in little-endian format in NVRAM.
12421                          * Use the big-endian read routines to preserve
12422                          * the byte order as it exists in NVRAM.
12423                          */
12424                         if (tg3_nvram_read_be32(tp, TG3_NVM_VPD_OFF + i, &tmp))
12425                                 goto out_not_found;
12426
12427                         memcpy(&vpd_data[i], &tmp, sizeof(tmp));
12428                 }
12429         } else {
12430                 ssize_t cnt;
12431                 unsigned int pos = 0;
12432
12433                 for (; pos < TG3_NVM_VPD_LEN && i < 3; i++, pos += cnt) {
12434                         cnt = pci_read_vpd(tp->pdev, pos,
12435                                            TG3_NVM_VPD_LEN - pos,
12436                                            &vpd_data[pos]);
12437                         if (cnt == -ETIMEDOUT || -EINTR)
12438                                 cnt = 0;
12439                         else if (cnt < 0)
12440                                 goto out_not_found;
12441                 }
12442                 if (pos != TG3_NVM_VPD_LEN)
12443                         goto out_not_found;
12444         }
12445
12446         i = pci_vpd_find_tag(vpd_data, 0, TG3_NVM_VPD_LEN,
12447                              PCI_VPD_LRDT_RO_DATA);
12448         if (i < 0)
12449                 goto out_not_found;
12450
12451         rosize = pci_vpd_lrdt_size(&vpd_data[i]);
12452         block_end = i + PCI_VPD_LRDT_TAG_SIZE + rosize;
12453         i += PCI_VPD_LRDT_TAG_SIZE;
12454
12455         if (block_end > TG3_NVM_VPD_LEN)
12456                 goto out_not_found;
12457
12458         j = pci_vpd_find_info_keyword(vpd_data, i, rosize,
12459                                       PCI_VPD_RO_KEYWORD_MFR_ID);
12460         if (j > 0) {
12461                 len = pci_vpd_info_field_size(&vpd_data[j]);
12462
12463                 j += PCI_VPD_INFO_FLD_HDR_SIZE;
12464                 if (j + len > block_end || len != 4 ||
12465                     memcmp(&vpd_data[j], "1028", 4))
12466                         goto partno;
12467
12468                 j = pci_vpd_find_info_keyword(vpd_data, i, rosize,
12469                                               PCI_VPD_RO_KEYWORD_VENDOR0);
12470                 if (j < 0)
12471                         goto partno;
12472
12473                 len = pci_vpd_info_field_size(&vpd_data[j]);
12474
12475                 j += PCI_VPD_INFO_FLD_HDR_SIZE;
12476                 if (j + len > block_end)
12477                         goto partno;
12478
12479                 memcpy(tp->fw_ver, &vpd_data[j], len);
12480                 strncat(tp->fw_ver, " bc ", TG3_NVM_VPD_LEN - len - 1);
12481         }
12482
12483 partno:
12484         i = pci_vpd_find_info_keyword(vpd_data, i, rosize,
12485                                       PCI_VPD_RO_KEYWORD_PARTNO);
12486         if (i < 0)
12487                 goto out_not_found;
12488
12489         len = pci_vpd_info_field_size(&vpd_data[i]);
12490
12491         i += PCI_VPD_INFO_FLD_HDR_SIZE;
12492         if (len > TG3_BPN_SIZE ||
12493             (len + i) > TG3_NVM_VPD_LEN)
12494                 goto out_not_found;
12495
12496         memcpy(tp->board_part_number, &vpd_data[i], len);
12497
12498         return;
12499
12500 out_not_found:
12501         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
12502                 strcpy(tp->board_part_number, "BCM95906");
12503         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 &&
12504                  tp->pdev->device == TG3PCI_DEVICE_TIGON3_57780)
12505                 strcpy(tp->board_part_number, "BCM57780");
12506         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 &&
12507                  tp->pdev->device == TG3PCI_DEVICE_TIGON3_57760)
12508                 strcpy(tp->board_part_number, "BCM57760");
12509         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 &&
12510                  tp->pdev->device == TG3PCI_DEVICE_TIGON3_57790)
12511                 strcpy(tp->board_part_number, "BCM57790");
12512         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 &&
12513                  tp->pdev->device == TG3PCI_DEVICE_TIGON3_57788)
12514                 strcpy(tp->board_part_number, "BCM57788");
12515         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765 &&
12516                  tp->pdev->device == TG3PCI_DEVICE_TIGON3_57761)
12517                 strcpy(tp->board_part_number, "BCM57761");
12518         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765 &&
12519                  tp->pdev->device == TG3PCI_DEVICE_TIGON3_57765)
12520                 strcpy(tp->board_part_number, "BCM57765");
12521         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765 &&
12522                  tp->pdev->device == TG3PCI_DEVICE_TIGON3_57781)
12523                 strcpy(tp->board_part_number, "BCM57781");
12524         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765 &&
12525                  tp->pdev->device == TG3PCI_DEVICE_TIGON3_57785)
12526                 strcpy(tp->board_part_number, "BCM57785");
12527         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765 &&
12528                  tp->pdev->device == TG3PCI_DEVICE_TIGON3_57791)
12529                 strcpy(tp->board_part_number, "BCM57791");
12530         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765 &&
12531                  tp->pdev->device == TG3PCI_DEVICE_TIGON3_57795)
12532                 strcpy(tp->board_part_number, "BCM57795");
12533         else
12534                 strcpy(tp->board_part_number, "none");
12535 }
12536
12537 static int __devinit tg3_fw_img_is_valid(struct tg3 *tp, u32 offset)
12538 {
12539         u32 val;
12540
12541         if (tg3_nvram_read(tp, offset, &val) ||
12542             (val & 0xfc000000) != 0x0c000000 ||
12543             tg3_nvram_read(tp, offset + 4, &val) ||
12544             val != 0)
12545                 return 0;
12546
12547         return 1;
12548 }
12549
12550 static void __devinit tg3_read_bc_ver(struct tg3 *tp)
12551 {
12552         u32 val, offset, start, ver_offset;
12553         int i, dst_off;
12554         bool newver = false;
12555
12556         if (tg3_nvram_read(tp, 0xc, &offset) ||
12557             tg3_nvram_read(tp, 0x4, &start))
12558                 return;
12559
12560         offset = tg3_nvram_logical_addr(tp, offset);
12561
12562         if (tg3_nvram_read(tp, offset, &val))
12563                 return;
12564
12565         if ((val & 0xfc000000) == 0x0c000000) {
12566                 if (tg3_nvram_read(tp, offset + 4, &val))
12567                         return;
12568
12569                 if (val == 0)
12570                         newver = true;
12571         }
12572
12573         dst_off = strlen(tp->fw_ver);
12574
12575         if (newver) {
12576                 if (TG3_VER_SIZE - dst_off < 16 ||
12577                     tg3_nvram_read(tp, offset + 8, &ver_offset))
12578                         return;
12579
12580                 offset = offset + ver_offset - start;
12581                 for (i = 0; i < 16; i += 4) {
12582                         __be32 v;
12583                         if (tg3_nvram_read_be32(tp, offset + i, &v))
12584                                 return;
12585
12586                         memcpy(tp->fw_ver + dst_off + i, &v, sizeof(v));
12587                 }
12588         } else {
12589                 u32 major, minor;
12590
12591                 if (tg3_nvram_read(tp, TG3_NVM_PTREV_BCVER, &ver_offset))
12592                         return;
12593
12594                 major = (ver_offset & TG3_NVM_BCVER_MAJMSK) >>
12595                         TG3_NVM_BCVER_MAJSFT;
12596                 minor = ver_offset & TG3_NVM_BCVER_MINMSK;
12597                 snprintf(&tp->fw_ver[dst_off], TG3_VER_SIZE - dst_off,
12598                          "v%d.%02d", major, minor);
12599         }
12600 }
12601
12602 static void __devinit tg3_read_hwsb_ver(struct tg3 *tp)
12603 {
12604         u32 val, major, minor;
12605
12606         /* Use native endian representation */
12607         if (tg3_nvram_read(tp, TG3_NVM_HWSB_CFG1, &val))
12608                 return;
12609
12610         major = (val & TG3_NVM_HWSB_CFG1_MAJMSK) >>
12611                 TG3_NVM_HWSB_CFG1_MAJSFT;
12612         minor = (val & TG3_NVM_HWSB_CFG1_MINMSK) >>
12613                 TG3_NVM_HWSB_CFG1_MINSFT;
12614
12615         snprintf(&tp->fw_ver[0], 32, "sb v%d.%02d", major, minor);
12616 }
12617
12618 static void __devinit tg3_read_sb_ver(struct tg3 *tp, u32 val)
12619 {
12620         u32 offset, major, minor, build;
12621
12622         strncat(tp->fw_ver, "sb", TG3_VER_SIZE - strlen(tp->fw_ver) - 1);
12623
12624         if ((val & TG3_EEPROM_SB_FORMAT_MASK) != TG3_EEPROM_SB_FORMAT_1)
12625                 return;
12626
12627         switch (val & TG3_EEPROM_SB_REVISION_MASK) {
12628         case TG3_EEPROM_SB_REVISION_0:
12629                 offset = TG3_EEPROM_SB_F1R0_EDH_OFF;
12630                 break;
12631         case TG3_EEPROM_SB_REVISION_2:
12632                 offset = TG3_EEPROM_SB_F1R2_EDH_OFF;
12633                 break;
12634         case TG3_EEPROM_SB_REVISION_3:
12635                 offset = TG3_EEPROM_SB_F1R3_EDH_OFF;
12636                 break;
12637         case TG3_EEPROM_SB_REVISION_4:
12638                 offset = TG3_EEPROM_SB_F1R4_EDH_OFF;
12639                 break;
12640         case TG3_EEPROM_SB_REVISION_5:
12641                 offset = TG3_EEPROM_SB_F1R5_EDH_OFF;
12642                 break;
12643         default:
12644                 return;
12645         }
12646
12647         if (tg3_nvram_read(tp, offset, &val))
12648                 return;
12649
12650         build = (val & TG3_EEPROM_SB_EDH_BLD_MASK) >>
12651                 TG3_EEPROM_SB_EDH_BLD_SHFT;
12652         major = (val & TG3_EEPROM_SB_EDH_MAJ_MASK) >>
12653                 TG3_EEPROM_SB_EDH_MAJ_SHFT;
12654         minor =  val & TG3_EEPROM_SB_EDH_MIN_MASK;
12655
12656         if (minor > 99 || build > 26)
12657                 return;
12658
12659         offset = strlen(tp->fw_ver);
12660         snprintf(&tp->fw_ver[offset], TG3_VER_SIZE - offset,
12661                  " v%d.%02d", major, minor);
12662
12663         if (build > 0) {
12664                 offset = strlen(tp->fw_ver);
12665                 if (offset < TG3_VER_SIZE - 1)
12666                         tp->fw_ver[offset] = 'a' + build - 1;
12667         }
12668 }
12669
12670 static void __devinit tg3_read_mgmtfw_ver(struct tg3 *tp)
12671 {
12672         u32 val, offset, start;
12673         int i, vlen;
12674
12675         for (offset = TG3_NVM_DIR_START;
12676              offset < TG3_NVM_DIR_END;
12677              offset += TG3_NVM_DIRENT_SIZE) {
12678                 if (tg3_nvram_read(tp, offset, &val))
12679                         return;
12680
12681                 if ((val >> TG3_NVM_DIRTYPE_SHIFT) == TG3_NVM_DIRTYPE_ASFINI)
12682                         break;
12683         }
12684
12685         if (offset == TG3_NVM_DIR_END)
12686                 return;
12687
12688         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
12689                 start = 0x08000000;
12690         else if (tg3_nvram_read(tp, offset - 4, &start))
12691                 return;
12692
12693         if (tg3_nvram_read(tp, offset + 4, &offset) ||
12694             !tg3_fw_img_is_valid(tp, offset) ||
12695             tg3_nvram_read(tp, offset + 8, &val))
12696                 return;
12697
12698         offset += val - start;
12699
12700         vlen = strlen(tp->fw_ver);
12701
12702         tp->fw_ver[vlen++] = ',';
12703         tp->fw_ver[vlen++] = ' ';
12704
12705         for (i = 0; i < 4; i++) {
12706                 __be32 v;
12707                 if (tg3_nvram_read_be32(tp, offset, &v))
12708                         return;
12709
12710                 offset += sizeof(v);
12711
12712                 if (vlen > TG3_VER_SIZE - sizeof(v)) {
12713                         memcpy(&tp->fw_ver[vlen], &v, TG3_VER_SIZE - vlen);
12714                         break;
12715                 }
12716
12717                 memcpy(&tp->fw_ver[vlen], &v, sizeof(v));
12718                 vlen += sizeof(v);
12719         }
12720 }
12721
12722 static void __devinit tg3_read_dash_ver(struct tg3 *tp)
12723 {
12724         int vlen;
12725         u32 apedata;
12726         char *fwtype;
12727
12728         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) ||
12729             !(tp->tg3_flags  & TG3_FLAG_ENABLE_ASF))
12730                 return;
12731
12732         apedata = tg3_ape_read32(tp, TG3_APE_SEG_SIG);
12733         if (apedata != APE_SEG_SIG_MAGIC)
12734                 return;
12735
12736         apedata = tg3_ape_read32(tp, TG3_APE_FW_STATUS);
12737         if (!(apedata & APE_FW_STATUS_READY))
12738                 return;
12739
12740         apedata = tg3_ape_read32(tp, TG3_APE_FW_VERSION);
12741
12742         if (tg3_ape_read32(tp, TG3_APE_FW_FEATURES) & TG3_APE_FW_FEATURE_NCSI)
12743                 fwtype = "NCSI";
12744         else
12745                 fwtype = "DASH";
12746
12747         vlen = strlen(tp->fw_ver);
12748
12749         snprintf(&tp->fw_ver[vlen], TG3_VER_SIZE - vlen, " %s v%d.%d.%d.%d",
12750                  fwtype,
12751                  (apedata & APE_FW_VERSION_MAJMSK) >> APE_FW_VERSION_MAJSFT,
12752                  (apedata & APE_FW_VERSION_MINMSK) >> APE_FW_VERSION_MINSFT,
12753                  (apedata & APE_FW_VERSION_REVMSK) >> APE_FW_VERSION_REVSFT,
12754                  (apedata & APE_FW_VERSION_BLDMSK));
12755 }
12756
12757 static void __devinit tg3_read_fw_ver(struct tg3 *tp)
12758 {
12759         u32 val;
12760         bool vpd_vers = false;
12761
12762         if (tp->fw_ver[0] != 0)
12763                 vpd_vers = true;
12764
12765         if (tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) {
12766                 strcat(tp->fw_ver, "sb");
12767                 return;
12768         }
12769
12770         if (tg3_nvram_read(tp, 0, &val))
12771                 return;
12772
12773         if (val == TG3_EEPROM_MAGIC)
12774                 tg3_read_bc_ver(tp);
12775         else if ((val & TG3_EEPROM_MAGIC_FW_MSK) == TG3_EEPROM_MAGIC_FW)
12776                 tg3_read_sb_ver(tp, val);
12777         else if ((val & TG3_EEPROM_MAGIC_HW_MSK) == TG3_EEPROM_MAGIC_HW)
12778                 tg3_read_hwsb_ver(tp);
12779         else
12780                 return;
12781
12782         if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF) ||
12783              (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) || vpd_vers)
12784                 goto done;
12785
12786         tg3_read_mgmtfw_ver(tp);
12787
12788 done:
12789         tp->fw_ver[TG3_VER_SIZE - 1] = 0;
12790 }
12791
12792 static struct pci_dev * __devinit tg3_find_peer(struct tg3 *);
12793
12794 static void inline vlan_features_add(struct net_device *dev, unsigned long flags)
12795 {
12796 #if TG3_VLAN_TAG_USED
12797         dev->vlan_features |= flags;
12798 #endif
12799 }
12800
12801 static int __devinit tg3_get_invariants(struct tg3 *tp)
12802 {
12803         static struct pci_device_id write_reorder_chipsets[] = {
12804                 { PCI_DEVICE(PCI_VENDOR_ID_AMD,
12805                              PCI_DEVICE_ID_AMD_FE_GATE_700C) },
12806                 { PCI_DEVICE(PCI_VENDOR_ID_AMD,
12807                              PCI_DEVICE_ID_AMD_8131_BRIDGE) },
12808                 { PCI_DEVICE(PCI_VENDOR_ID_VIA,
12809                              PCI_DEVICE_ID_VIA_8385_0) },
12810                 { },
12811         };
12812         u32 misc_ctrl_reg;
12813         u32 pci_state_reg, grc_misc_cfg;
12814         u32 val;
12815         u16 pci_cmd;
12816         int err;
12817
12818         /* Force memory write invalidate off.  If we leave it on,
12819          * then on 5700_BX chips we have to enable a workaround.
12820          * The workaround is to set the TG3PCI_DMA_RW_CTRL boundary
12821          * to match the cacheline size.  The Broadcom driver have this
12822          * workaround but turns MWI off all the times so never uses
12823          * it.  This seems to suggest that the workaround is insufficient.
12824          */
12825         pci_read_config_word(tp->pdev, PCI_COMMAND, &pci_cmd);
12826         pci_cmd &= ~PCI_COMMAND_INVALIDATE;
12827         pci_write_config_word(tp->pdev, PCI_COMMAND, pci_cmd);
12828
12829         /* It is absolutely critical that TG3PCI_MISC_HOST_CTRL
12830          * has the register indirect write enable bit set before
12831          * we try to access any of the MMIO registers.  It is also
12832          * critical that the PCI-X hw workaround situation is decided
12833          * before that as well.
12834          */
12835         pci_read_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
12836                               &misc_ctrl_reg);
12837
12838         tp->pci_chip_rev_id = (misc_ctrl_reg >>
12839                                MISC_HOST_CTRL_CHIPREV_SHIFT);
12840         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_USE_PROD_ID_REG) {
12841                 u32 prod_id_asic_rev;
12842
12843                 if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_5717 ||
12844                     tp->pdev->device == TG3PCI_DEVICE_TIGON3_5718 ||
12845                     tp->pdev->device == TG3PCI_DEVICE_TIGON3_5724 ||
12846                     tp->pdev->device == TG3PCI_DEVICE_TIGON3_5719)
12847                         pci_read_config_dword(tp->pdev,
12848                                               TG3PCI_GEN2_PRODID_ASICREV,
12849                                               &prod_id_asic_rev);
12850                 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57781 ||
12851                          tp->pdev->device == TG3PCI_DEVICE_TIGON3_57785 ||
12852                          tp->pdev->device == TG3PCI_DEVICE_TIGON3_57761 ||
12853                          tp->pdev->device == TG3PCI_DEVICE_TIGON3_57765 ||
12854                          tp->pdev->device == TG3PCI_DEVICE_TIGON3_57791 ||
12855                          tp->pdev->device == TG3PCI_DEVICE_TIGON3_57795)
12856                         pci_read_config_dword(tp->pdev,
12857                                               TG3PCI_GEN15_PRODID_ASICREV,
12858                                               &prod_id_asic_rev);
12859                 else
12860                         pci_read_config_dword(tp->pdev, TG3PCI_PRODID_ASICREV,
12861                                               &prod_id_asic_rev);
12862
12863                 tp->pci_chip_rev_id = prod_id_asic_rev;
12864         }
12865
12866         /* Wrong chip ID in 5752 A0. This code can be removed later
12867          * as A0 is not in production.
12868          */
12869         if (tp->pci_chip_rev_id == CHIPREV_ID_5752_A0_HW)
12870                 tp->pci_chip_rev_id = CHIPREV_ID_5752_A0;
12871
12872         /* If we have 5702/03 A1 or A2 on certain ICH chipsets,
12873          * we need to disable memory and use config. cycles
12874          * only to access all registers. The 5702/03 chips
12875          * can mistakenly decode the special cycles from the
12876          * ICH chipsets as memory write cycles, causing corruption
12877          * of register and memory space. Only certain ICH bridges
12878          * will drive special cycles with non-zero data during the
12879          * address phase which can fall within the 5703's address
12880          * range. This is not an ICH bug as the PCI spec allows
12881          * non-zero address during special cycles. However, only
12882          * these ICH bridges are known to drive non-zero addresses
12883          * during special cycles.
12884          *
12885          * Since special cycles do not cross PCI bridges, we only
12886          * enable this workaround if the 5703 is on the secondary
12887          * bus of these ICH bridges.
12888          */
12889         if ((tp->pci_chip_rev_id == CHIPREV_ID_5703_A1) ||
12890             (tp->pci_chip_rev_id == CHIPREV_ID_5703_A2)) {
12891                 static struct tg3_dev_id {
12892                         u32     vendor;
12893                         u32     device;
12894                         u32     rev;
12895                 } ich_chipsets[] = {
12896                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_8,
12897                           PCI_ANY_ID },
12898                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_8,
12899                           PCI_ANY_ID },
12900                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_11,
12901                           0xa },
12902                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_6,
12903                           PCI_ANY_ID },
12904                         { },
12905                 };
12906                 struct tg3_dev_id *pci_id = &ich_chipsets[0];
12907                 struct pci_dev *bridge = NULL;
12908
12909                 while (pci_id->vendor != 0) {
12910                         bridge = pci_get_device(pci_id->vendor, pci_id->device,
12911                                                 bridge);
12912                         if (!bridge) {
12913                                 pci_id++;
12914                                 continue;
12915                         }
12916                         if (pci_id->rev != PCI_ANY_ID) {
12917                                 if (bridge->revision > pci_id->rev)
12918                                         continue;
12919                         }
12920                         if (bridge->subordinate &&
12921                             (bridge->subordinate->number ==
12922                              tp->pdev->bus->number)) {
12923
12924                                 tp->tg3_flags2 |= TG3_FLG2_ICH_WORKAROUND;
12925                                 pci_dev_put(bridge);
12926                                 break;
12927                         }
12928                 }
12929         }
12930
12931         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)) {
12932                 static struct tg3_dev_id {
12933                         u32     vendor;
12934                         u32     device;
12935                 } bridge_chipsets[] = {
12936                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0 },
12937                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1 },
12938                         { },
12939                 };
12940                 struct tg3_dev_id *pci_id = &bridge_chipsets[0];
12941                 struct pci_dev *bridge = NULL;
12942
12943                 while (pci_id->vendor != 0) {
12944                         bridge = pci_get_device(pci_id->vendor,
12945                                                 pci_id->device,
12946                                                 bridge);
12947                         if (!bridge) {
12948                                 pci_id++;
12949                                 continue;
12950                         }
12951                         if (bridge->subordinate &&
12952                             (bridge->subordinate->number <=
12953                              tp->pdev->bus->number) &&
12954                             (bridge->subordinate->subordinate >=
12955                              tp->pdev->bus->number)) {
12956                                 tp->tg3_flags3 |= TG3_FLG3_5701_DMA_BUG;
12957                                 pci_dev_put(bridge);
12958                                 break;
12959                         }
12960                 }
12961         }
12962
12963         /* The EPB bridge inside 5714, 5715, and 5780 cannot support
12964          * DMA addresses > 40-bit. This bridge may have other additional
12965          * 57xx devices behind it in some 4-port NIC designs for example.
12966          * Any tg3 device found behind the bridge will also need the 40-bit
12967          * DMA workaround.
12968          */
12969         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780 ||
12970             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714) {
12971                 tp->tg3_flags2 |= TG3_FLG2_5780_CLASS;
12972                 tp->tg3_flags |= TG3_FLAG_40BIT_DMA_BUG;
12973                 tp->msi_cap = pci_find_capability(tp->pdev, PCI_CAP_ID_MSI);
12974         } else {
12975                 struct pci_dev *bridge = NULL;
12976
12977                 do {
12978                         bridge = pci_get_device(PCI_VENDOR_ID_SERVERWORKS,
12979                                                 PCI_DEVICE_ID_SERVERWORKS_EPB,
12980                                                 bridge);
12981                         if (bridge && bridge->subordinate &&
12982                             (bridge->subordinate->number <=
12983                              tp->pdev->bus->number) &&
12984                             (bridge->subordinate->subordinate >=
12985                              tp->pdev->bus->number)) {
12986                                 tp->tg3_flags |= TG3_FLAG_40BIT_DMA_BUG;
12987                                 pci_dev_put(bridge);
12988                                 break;
12989                         }
12990                 } while (bridge);
12991         }
12992
12993         /* Initialize misc host control in PCI block. */
12994         tp->misc_host_ctrl |= (misc_ctrl_reg &
12995                                MISC_HOST_CTRL_CHIPREV);
12996         pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
12997                                tp->misc_host_ctrl);
12998
12999         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
13000             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714 ||
13001             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717)
13002                 tp->pdev_peer = tg3_find_peer(tp);
13003
13004         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
13005             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719 ||
13006             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
13007                 tp->tg3_flags3 |= TG3_FLG3_5717_PLUS;
13008
13009         /* Intentionally exclude ASIC_REV_5906 */
13010         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 ||
13011             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5787 ||
13012             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
13013             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
13014             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
13015             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 ||
13016             (tp->tg3_flags3 & TG3_FLG3_5717_PLUS))
13017                 tp->tg3_flags3 |= TG3_FLG3_5755_PLUS;
13018
13019         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750 ||
13020             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752 ||
13021             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906 ||
13022             (tp->tg3_flags3 & TG3_FLG3_5755_PLUS) ||
13023             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
13024                 tp->tg3_flags2 |= TG3_FLG2_5750_PLUS;
13025
13026         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) ||
13027             (tp->tg3_flags2 & TG3_FLG2_5750_PLUS))
13028                 tp->tg3_flags2 |= TG3_FLG2_5705_PLUS;
13029
13030         /* 5700 B0 chips do not support checksumming correctly due
13031          * to hardware bugs.
13032          */
13033         if (tp->pci_chip_rev_id == CHIPREV_ID_5700_B0)
13034                 tp->tg3_flags |= TG3_FLAG_BROKEN_CHECKSUMS;
13035         else {
13036                 unsigned long features = NETIF_F_IP_CSUM | NETIF_F_SG | NETIF_F_GRO;
13037
13038                 tp->tg3_flags |= TG3_FLAG_RX_CHECKSUMS;
13039                 if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
13040                         features |= NETIF_F_IPV6_CSUM;
13041                 tp->dev->features |= features;
13042                 vlan_features_add(tp->dev, features);
13043         }
13044
13045         /* Determine TSO capabilities */
13046         if (tp->tg3_flags3 & TG3_FLG3_5717_PLUS)
13047                 tp->tg3_flags2 |= TG3_FLG2_HW_TSO_3;
13048         else if ((tp->tg3_flags3 & TG3_FLG3_5755_PLUS) ||
13049                  GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
13050                 tp->tg3_flags2 |= TG3_FLG2_HW_TSO_2;
13051         else if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) {
13052                 tp->tg3_flags2 |= TG3_FLG2_HW_TSO_1 | TG3_FLG2_TSO_BUG;
13053                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750 &&
13054                     tp->pci_chip_rev_id >= CHIPREV_ID_5750_C2)
13055                         tp->tg3_flags2 &= ~TG3_FLG2_TSO_BUG;
13056         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
13057                    GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701 &&
13058                    tp->pci_chip_rev_id != CHIPREV_ID_5705_A0) {
13059                 tp->tg3_flags2 |= TG3_FLG2_TSO_BUG;
13060                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705)
13061                         tp->fw_needed = FIRMWARE_TG3TSO5;
13062                 else
13063                         tp->fw_needed = FIRMWARE_TG3TSO;
13064         }
13065
13066         tp->irq_max = 1;
13067
13068         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) {
13069                 tp->tg3_flags |= TG3_FLAG_SUPPORT_MSI;
13070                 if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_AX ||
13071                     GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_BX ||
13072                     (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714 &&
13073                      tp->pci_chip_rev_id <= CHIPREV_ID_5714_A2 &&
13074                      tp->pdev_peer == tp->pdev))
13075                         tp->tg3_flags &= ~TG3_FLAG_SUPPORT_MSI;
13076
13077                 if ((tp->tg3_flags3 & TG3_FLG3_5755_PLUS) ||
13078                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
13079                         tp->tg3_flags2 |= TG3_FLG2_1SHOT_MSI;
13080                 }
13081
13082                 if (tp->tg3_flags3 & TG3_FLG3_5717_PLUS) {
13083                         tp->tg3_flags |= TG3_FLAG_SUPPORT_MSIX;
13084                         tp->irq_max = TG3_IRQ_MAX_VECS;
13085                 }
13086         }
13087
13088         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
13089             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719 ||
13090             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
13091                 tp->tg3_flags3 |= TG3_FLG3_SHORT_DMA_BUG;
13092         else if (!(tp->tg3_flags3 & TG3_FLG3_5755_PLUS)) {
13093                 tp->tg3_flags3 |= TG3_FLG3_4G_DMA_BNDRY_BUG;
13094                 tp->tg3_flags3 |= TG3_FLG3_40BIT_DMA_LIMIT_BUG;
13095         }
13096
13097         if (tp->tg3_flags3 & TG3_FLG3_5717_PLUS)
13098                 tp->tg3_flags3 |= TG3_FLG3_USE_JUMBO_BDFLAG;
13099
13100         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ||
13101             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) ||
13102             (tp->tg3_flags3 & TG3_FLG3_USE_JUMBO_BDFLAG))
13103                 tp->tg3_flags |= TG3_FLAG_JUMBO_CAPABLE;
13104
13105         pci_read_config_dword(tp->pdev, TG3PCI_PCISTATE,
13106                               &pci_state_reg);
13107
13108         tp->pcie_cap = pci_find_capability(tp->pdev, PCI_CAP_ID_EXP);
13109         if (tp->pcie_cap != 0) {
13110                 u16 lnkctl;
13111
13112                 tp->tg3_flags2 |= TG3_FLG2_PCI_EXPRESS;
13113
13114                 pcie_set_readrq(tp->pdev, 4096);
13115
13116                 pci_read_config_word(tp->pdev,
13117                                      tp->pcie_cap + PCI_EXP_LNKCTL,
13118                                      &lnkctl);
13119                 if (lnkctl & PCI_EXP_LNKCTL_CLKREQ_EN) {
13120                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
13121                                 tp->tg3_flags2 &= ~TG3_FLG2_HW_TSO_2;
13122                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
13123                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
13124                             tp->pci_chip_rev_id == CHIPREV_ID_57780_A0 ||
13125                             tp->pci_chip_rev_id == CHIPREV_ID_57780_A1)
13126                                 tp->tg3_flags3 |= TG3_FLG3_CLKREQ_BUG;
13127                 } else if (tp->pci_chip_rev_id == CHIPREV_ID_5717_A0) {
13128                         tp->tg3_flags3 |= TG3_FLG3_L1PLLPD_EN;
13129                 }
13130         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785) {
13131                 tp->tg3_flags2 |= TG3_FLG2_PCI_EXPRESS;
13132         } else if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ||
13133                    (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
13134                 tp->pcix_cap = pci_find_capability(tp->pdev, PCI_CAP_ID_PCIX);
13135                 if (!tp->pcix_cap) {
13136                         dev_err(&tp->pdev->dev,
13137                                 "Cannot find PCI-X capability, aborting\n");
13138                         return -EIO;
13139                 }
13140
13141                 if (!(pci_state_reg & PCISTATE_CONV_PCI_MODE))
13142                         tp->tg3_flags |= TG3_FLAG_PCIX_MODE;
13143         }
13144
13145         /* If we have an AMD 762 or VIA K8T800 chipset, write
13146          * reordering to the mailbox registers done by the host
13147          * controller can cause major troubles.  We read back from
13148          * every mailbox register write to force the writes to be
13149          * posted to the chip in order.
13150          */
13151         if (pci_dev_present(write_reorder_chipsets) &&
13152             !(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS))
13153                 tp->tg3_flags |= TG3_FLAG_MBOX_WRITE_REORDER;
13154
13155         pci_read_config_byte(tp->pdev, PCI_CACHE_LINE_SIZE,
13156                              &tp->pci_cacheline_sz);
13157         pci_read_config_byte(tp->pdev, PCI_LATENCY_TIMER,
13158                              &tp->pci_lat_timer);
13159         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 &&
13160             tp->pci_lat_timer < 64) {
13161                 tp->pci_lat_timer = 64;
13162                 pci_write_config_byte(tp->pdev, PCI_LATENCY_TIMER,
13163                                       tp->pci_lat_timer);
13164         }
13165
13166         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5700_BX) {
13167                 /* 5700 BX chips need to have their TX producer index
13168                  * mailboxes written twice to workaround a bug.
13169                  */
13170                 tp->tg3_flags |= TG3_FLAG_TXD_MBOX_HWBUG;
13171
13172                 /* If we are in PCI-X mode, enable register write workaround.
13173                  *
13174                  * The workaround is to use indirect register accesses
13175                  * for all chip writes not to mailbox registers.
13176                  */
13177                 if (tp->tg3_flags & TG3_FLAG_PCIX_MODE) {
13178                         u32 pm_reg;
13179
13180                         tp->tg3_flags |= TG3_FLAG_PCIX_TARGET_HWBUG;
13181
13182                         /* The chip can have it's power management PCI config
13183                          * space registers clobbered due to this bug.
13184                          * So explicitly force the chip into D0 here.
13185                          */
13186                         pci_read_config_dword(tp->pdev,
13187                                               tp->pm_cap + PCI_PM_CTRL,
13188                                               &pm_reg);
13189                         pm_reg &= ~PCI_PM_CTRL_STATE_MASK;
13190                         pm_reg |= PCI_PM_CTRL_PME_ENABLE | 0 /* D0 */;
13191                         pci_write_config_dword(tp->pdev,
13192                                                tp->pm_cap + PCI_PM_CTRL,
13193                                                pm_reg);
13194
13195                         /* Also, force SERR#/PERR# in PCI command. */
13196                         pci_read_config_word(tp->pdev, PCI_COMMAND, &pci_cmd);
13197                         pci_cmd |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
13198                         pci_write_config_word(tp->pdev, PCI_COMMAND, pci_cmd);
13199                 }
13200         }
13201
13202         if ((pci_state_reg & PCISTATE_BUS_SPEED_HIGH) != 0)
13203                 tp->tg3_flags |= TG3_FLAG_PCI_HIGH_SPEED;
13204         if ((pci_state_reg & PCISTATE_BUS_32BIT) != 0)
13205                 tp->tg3_flags |= TG3_FLAG_PCI_32BIT;
13206
13207         /* Chip-specific fixup from Broadcom driver */
13208         if ((tp->pci_chip_rev_id == CHIPREV_ID_5704_A0) &&
13209             (!(pci_state_reg & PCISTATE_RETRY_SAME_DMA))) {
13210                 pci_state_reg |= PCISTATE_RETRY_SAME_DMA;
13211                 pci_write_config_dword(tp->pdev, TG3PCI_PCISTATE, pci_state_reg);
13212         }
13213
13214         /* Default fast path register access methods */
13215         tp->read32 = tg3_read32;
13216         tp->write32 = tg3_write32;
13217         tp->read32_mbox = tg3_read32;
13218         tp->write32_mbox = tg3_write32;
13219         tp->write32_tx_mbox = tg3_write32;
13220         tp->write32_rx_mbox = tg3_write32;
13221
13222         /* Various workaround register access methods */
13223         if (tp->tg3_flags & TG3_FLAG_PCIX_TARGET_HWBUG)
13224                 tp->write32 = tg3_write_indirect_reg32;
13225         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701 ||
13226                  ((tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) &&
13227                   tp->pci_chip_rev_id == CHIPREV_ID_5750_A0)) {
13228                 /*
13229                  * Back to back register writes can cause problems on these
13230                  * chips, the workaround is to read back all reg writes
13231                  * except those to mailbox regs.
13232                  *
13233                  * See tg3_write_indirect_reg32().
13234                  */
13235                 tp->write32 = tg3_write_flush_reg32;
13236         }
13237
13238         if ((tp->tg3_flags & TG3_FLAG_TXD_MBOX_HWBUG) ||
13239             (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)) {
13240                 tp->write32_tx_mbox = tg3_write32_tx_mbox;
13241                 if (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)
13242                         tp->write32_rx_mbox = tg3_write_flush_reg32;
13243         }
13244
13245         if (tp->tg3_flags2 & TG3_FLG2_ICH_WORKAROUND) {
13246                 tp->read32 = tg3_read_indirect_reg32;
13247                 tp->write32 = tg3_write_indirect_reg32;
13248                 tp->read32_mbox = tg3_read_indirect_mbox;
13249                 tp->write32_mbox = tg3_write_indirect_mbox;
13250                 tp->write32_tx_mbox = tg3_write_indirect_mbox;
13251                 tp->write32_rx_mbox = tg3_write_indirect_mbox;
13252
13253                 iounmap(tp->regs);
13254                 tp->regs = NULL;
13255
13256                 pci_read_config_word(tp->pdev, PCI_COMMAND, &pci_cmd);
13257                 pci_cmd &= ~PCI_COMMAND_MEMORY;
13258                 pci_write_config_word(tp->pdev, PCI_COMMAND, pci_cmd);
13259         }
13260         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
13261                 tp->read32_mbox = tg3_read32_mbox_5906;
13262                 tp->write32_mbox = tg3_write32_mbox_5906;
13263                 tp->write32_tx_mbox = tg3_write32_mbox_5906;
13264                 tp->write32_rx_mbox = tg3_write32_mbox_5906;
13265         }
13266
13267         if (tp->write32 == tg3_write_indirect_reg32 ||
13268             ((tp->tg3_flags & TG3_FLAG_PCIX_MODE) &&
13269              (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
13270               GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)))
13271                 tp->tg3_flags |= TG3_FLAG_SRAM_USE_CONFIG;
13272
13273         /* Get eeprom hw config before calling tg3_set_power_state().
13274          * In particular, the TG3_FLG2_IS_NIC flag must be
13275          * determined before calling tg3_set_power_state() so that
13276          * we know whether or not to switch out of Vaux power.
13277          * When the flag is set, it means that GPIO1 is used for eeprom
13278          * write protect and also implies that it is a LOM where GPIOs
13279          * are not used to switch power.
13280          */
13281         tg3_get_eeprom_hw_cfg(tp);
13282
13283         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
13284                 /* Allow reads and writes to the
13285                  * APE register and memory space.
13286                  */
13287                 pci_state_reg |= PCISTATE_ALLOW_APE_CTLSPC_WR |
13288                                  PCISTATE_ALLOW_APE_SHMEM_WR |
13289                                  PCISTATE_ALLOW_APE_PSPACE_WR;
13290                 pci_write_config_dword(tp->pdev, TG3PCI_PCISTATE,
13291                                        pci_state_reg);
13292         }
13293
13294         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
13295             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
13296             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
13297             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 ||
13298             (tp->tg3_flags3 & TG3_FLG3_5717_PLUS))
13299                 tp->tg3_flags |= TG3_FLAG_CPMU_PRESENT;
13300
13301         /* Set up tp->grc_local_ctrl before calling tg3_set_power_state().
13302          * GPIO1 driven high will bring 5700's external PHY out of reset.
13303          * It is also used as eeprom write protect on LOMs.
13304          */
13305         tp->grc_local_ctrl = GRC_LCLCTRL_INT_ON_ATTN | GRC_LCLCTRL_AUTO_SEEPROM;
13306         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) ||
13307             (tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT))
13308                 tp->grc_local_ctrl |= (GRC_LCLCTRL_GPIO_OE1 |
13309                                        GRC_LCLCTRL_GPIO_OUTPUT1);
13310         /* Unused GPIO3 must be driven as output on 5752 because there
13311          * are no pull-up resistors on unused GPIO pins.
13312          */
13313         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752)
13314                 tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE3;
13315
13316         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 ||
13317             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 ||
13318             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
13319                 tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_UART_SEL;
13320
13321         if (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5761 ||
13322             tp->pdev->device == TG3PCI_DEVICE_TIGON3_5761S) {
13323                 /* Turn off the debug UART. */
13324                 tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_UART_SEL;
13325                 if (tp->tg3_flags2 & TG3_FLG2_IS_NIC)
13326                         /* Keep VMain power. */
13327                         tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE0 |
13328                                               GRC_LCLCTRL_GPIO_OUTPUT0;
13329         }
13330
13331         /* Force the chip into D0. */
13332         err = tg3_set_power_state(tp, PCI_D0);
13333         if (err) {
13334                 dev_err(&tp->pdev->dev, "Transition to D0 failed\n");
13335                 return err;
13336         }
13337
13338         /* Derive initial jumbo mode from MTU assigned in
13339          * ether_setup() via the alloc_etherdev() call
13340          */
13341         if (tp->dev->mtu > ETH_DATA_LEN &&
13342             !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
13343                 tp->tg3_flags |= TG3_FLAG_JUMBO_RING_ENABLE;
13344
13345         /* Determine WakeOnLan speed to use. */
13346         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
13347             tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
13348             tp->pci_chip_rev_id == CHIPREV_ID_5701_B0 ||
13349             tp->pci_chip_rev_id == CHIPREV_ID_5701_B2) {
13350                 tp->tg3_flags &= ~(TG3_FLAG_WOL_SPEED_100MB);
13351         } else {
13352                 tp->tg3_flags |= TG3_FLAG_WOL_SPEED_100MB;
13353         }
13354
13355         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
13356                 tp->phy_flags |= TG3_PHYFLG_IS_FET;
13357
13358         /* A few boards don't want Ethernet@WireSpeed phy feature */
13359         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) ||
13360             ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) &&
13361              (tp->pci_chip_rev_id != CHIPREV_ID_5705_A0) &&
13362              (tp->pci_chip_rev_id != CHIPREV_ID_5705_A1)) ||
13363             (tp->phy_flags & TG3_PHYFLG_IS_FET) ||
13364             (tp->phy_flags & TG3_PHYFLG_ANY_SERDES))
13365                 tp->phy_flags |= TG3_PHYFLG_NO_ETH_WIRE_SPEED;
13366
13367         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5703_AX ||
13368             GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5704_AX)
13369                 tp->phy_flags |= TG3_PHYFLG_ADC_BUG;
13370         if (tp->pci_chip_rev_id == CHIPREV_ID_5704_A0)
13371                 tp->phy_flags |= TG3_PHYFLG_5704_A0_BUG;
13372
13373         if ((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
13374             !(tp->phy_flags & TG3_PHYFLG_IS_FET) &&
13375             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785 &&
13376             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_57780 &&
13377             !(tp->tg3_flags3 & TG3_FLG3_5717_PLUS)) {
13378                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 ||
13379                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5787 ||
13380                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
13381                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761) {
13382                         if (tp->pdev->device != PCI_DEVICE_ID_TIGON3_5756 &&
13383                             tp->pdev->device != PCI_DEVICE_ID_TIGON3_5722)
13384                                 tp->phy_flags |= TG3_PHYFLG_JITTER_BUG;
13385                         if (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5755M)
13386                                 tp->phy_flags |= TG3_PHYFLG_ADJUST_TRIM;
13387                 } else
13388                         tp->phy_flags |= TG3_PHYFLG_BER_BUG;
13389         }
13390
13391         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
13392             GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) {
13393                 tp->phy_otp = tg3_read_otp_phycfg(tp);
13394                 if (tp->phy_otp == 0)
13395                         tp->phy_otp = TG3_OTP_DEFAULT;
13396         }
13397
13398         if (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT)
13399                 tp->mi_mode = MAC_MI_MODE_500KHZ_CONST;
13400         else
13401                 tp->mi_mode = MAC_MI_MODE_BASE;
13402
13403         tp->coalesce_mode = 0;
13404         if (GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5700_AX &&
13405             GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5700_BX)
13406                 tp->coalesce_mode |= HOSTCC_MODE_32BYTE;
13407
13408         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
13409             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
13410                 tp->tg3_flags3 |= TG3_FLG3_USE_PHYLIB;
13411
13412         err = tg3_mdio_init(tp);
13413         if (err)
13414                 return err;
13415
13416         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 &&
13417             tp->pci_chip_rev_id != CHIPREV_ID_5717_A0)
13418                 return -ENOTSUPP;
13419
13420         /* Initialize data/descriptor byte/word swapping. */
13421         val = tr32(GRC_MODE);
13422         val &= GRC_MODE_HOST_STACKUP;
13423         tw32(GRC_MODE, val | tp->grc_mode);
13424
13425         tg3_switch_clocks(tp);
13426
13427         /* Clear this out for sanity. */
13428         tw32(TG3PCI_MEM_WIN_BASE_ADDR, 0);
13429
13430         pci_read_config_dword(tp->pdev, TG3PCI_PCISTATE,
13431                               &pci_state_reg);
13432         if ((pci_state_reg & PCISTATE_CONV_PCI_MODE) == 0 &&
13433             (tp->tg3_flags & TG3_FLAG_PCIX_TARGET_HWBUG) == 0) {
13434                 u32 chiprevid = GET_CHIP_REV_ID(tp->misc_host_ctrl);
13435
13436                 if (chiprevid == CHIPREV_ID_5701_A0 ||
13437                     chiprevid == CHIPREV_ID_5701_B0 ||
13438                     chiprevid == CHIPREV_ID_5701_B2 ||
13439                     chiprevid == CHIPREV_ID_5701_B5) {
13440                         void __iomem *sram_base;
13441
13442                         /* Write some dummy words into the SRAM status block
13443                          * area, see if it reads back correctly.  If the return
13444                          * value is bad, force enable the PCIX workaround.
13445                          */
13446                         sram_base = tp->regs + NIC_SRAM_WIN_BASE + NIC_SRAM_STATS_BLK;
13447
13448                         writel(0x00000000, sram_base);
13449                         writel(0x00000000, sram_base + 4);
13450                         writel(0xffffffff, sram_base + 4);
13451                         if (readl(sram_base) != 0x00000000)
13452                                 tp->tg3_flags |= TG3_FLAG_PCIX_TARGET_HWBUG;
13453                 }
13454         }
13455
13456         udelay(50);
13457         tg3_nvram_init(tp);
13458
13459         grc_misc_cfg = tr32(GRC_MISC_CFG);
13460         grc_misc_cfg &= GRC_MISC_CFG_BOARD_ID_MASK;
13461
13462         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 &&
13463             (grc_misc_cfg == GRC_MISC_CFG_BOARD_ID_5788 ||
13464              grc_misc_cfg == GRC_MISC_CFG_BOARD_ID_5788M))
13465                 tp->tg3_flags2 |= TG3_FLG2_IS_5788;
13466
13467         if (!(tp->tg3_flags2 & TG3_FLG2_IS_5788) &&
13468             (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700))
13469                 tp->tg3_flags |= TG3_FLAG_TAGGED_STATUS;
13470         if (tp->tg3_flags & TG3_FLAG_TAGGED_STATUS) {
13471                 tp->coalesce_mode |= (HOSTCC_MODE_CLRTICK_RXBD |
13472                                       HOSTCC_MODE_CLRTICK_TXBD);
13473
13474                 tp->misc_host_ctrl |= MISC_HOST_CTRL_TAGGED_STATUS;
13475                 pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
13476                                        tp->misc_host_ctrl);
13477         }
13478
13479         /* Preserve the APE MAC_MODE bits */
13480         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
13481                 tp->mac_mode = tr32(MAC_MODE) |
13482                                MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN;
13483         else
13484                 tp->mac_mode = TG3_DEF_MAC_MODE;
13485
13486         /* these are limited to 10/100 only */
13487         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 &&
13488              (grc_misc_cfg == 0x8000 || grc_misc_cfg == 0x4000)) ||
13489             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 &&
13490              tp->pdev->vendor == PCI_VENDOR_ID_BROADCOM &&
13491              (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5901 ||
13492               tp->pdev->device == PCI_DEVICE_ID_TIGON3_5901_2 ||
13493               tp->pdev->device == PCI_DEVICE_ID_TIGON3_5705F)) ||
13494             (tp->pdev->vendor == PCI_VENDOR_ID_BROADCOM &&
13495              (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5751F ||
13496               tp->pdev->device == PCI_DEVICE_ID_TIGON3_5753F ||
13497               tp->pdev->device == PCI_DEVICE_ID_TIGON3_5787F)) ||
13498             tp->pdev->device == TG3PCI_DEVICE_TIGON3_57790 ||
13499             tp->pdev->device == TG3PCI_DEVICE_TIGON3_57791 ||
13500             tp->pdev->device == TG3PCI_DEVICE_TIGON3_57795 ||
13501             (tp->phy_flags & TG3_PHYFLG_IS_FET))
13502                 tp->phy_flags |= TG3_PHYFLG_10_100_ONLY;
13503
13504         err = tg3_phy_probe(tp);
13505         if (err) {
13506                 dev_err(&tp->pdev->dev, "phy probe failed, err %d\n", err);
13507                 /* ... but do not return immediately ... */
13508                 tg3_mdio_fini(tp);
13509         }
13510
13511         tg3_read_vpd(tp);
13512         tg3_read_fw_ver(tp);
13513
13514         if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES) {
13515                 tp->phy_flags &= ~TG3_PHYFLG_USE_MI_INTERRUPT;
13516         } else {
13517                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700)
13518                         tp->phy_flags |= TG3_PHYFLG_USE_MI_INTERRUPT;
13519                 else
13520                         tp->phy_flags &= ~TG3_PHYFLG_USE_MI_INTERRUPT;
13521         }
13522
13523         /* 5700 {AX,BX} chips have a broken status block link
13524          * change bit implementation, so we must use the
13525          * status register in those cases.
13526          */
13527         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700)
13528                 tp->tg3_flags |= TG3_FLAG_USE_LINKCHG_REG;
13529         else
13530                 tp->tg3_flags &= ~TG3_FLAG_USE_LINKCHG_REG;
13531
13532         /* The led_ctrl is set during tg3_phy_probe, here we might
13533          * have to force the link status polling mechanism based
13534          * upon subsystem IDs.
13535          */
13536         if (tp->pdev->subsystem_vendor == PCI_VENDOR_ID_DELL &&
13537             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701 &&
13538             !(tp->phy_flags & TG3_PHYFLG_PHY_SERDES)) {
13539                 tp->phy_flags |= TG3_PHYFLG_USE_MI_INTERRUPT;
13540                 tp->tg3_flags |= TG3_FLAG_USE_LINKCHG_REG;
13541         }
13542
13543         /* For all SERDES we poll the MAC status register. */
13544         if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES)
13545                 tp->tg3_flags |= TG3_FLAG_POLL_SERDES;
13546         else
13547                 tp->tg3_flags &= ~TG3_FLAG_POLL_SERDES;
13548
13549         tp->rx_offset = NET_IP_ALIGN + TG3_RX_HEADROOM;
13550         tp->rx_copy_thresh = TG3_RX_COPY_THRESHOLD;
13551         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701 &&
13552             (tp->tg3_flags & TG3_FLAG_PCIX_MODE) != 0) {
13553                 tp->rx_offset -= NET_IP_ALIGN;
13554 #ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
13555                 tp->rx_copy_thresh = ~(u16)0;
13556 #endif
13557         }
13558
13559         tp->rx_std_max_post = TG3_RX_RING_SIZE;
13560
13561         /* Increment the rx prod index on the rx std ring by at most
13562          * 8 for these chips to workaround hw errata.
13563          */
13564         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750 ||
13565             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752 ||
13566             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755)
13567                 tp->rx_std_max_post = 8;
13568
13569         if (tp->tg3_flags & TG3_FLAG_ASPM_WORKAROUND)
13570                 tp->pwrmgmt_thresh = tr32(PCIE_PWR_MGMT_THRESH) &
13571                                      PCIE_PWR_MGMT_L1_THRESH_MSK;
13572
13573         return err;
13574 }
13575
13576 #ifdef CONFIG_SPARC
13577 static int __devinit tg3_get_macaddr_sparc(struct tg3 *tp)
13578 {
13579         struct net_device *dev = tp->dev;
13580         struct pci_dev *pdev = tp->pdev;
13581         struct device_node *dp = pci_device_to_OF_node(pdev);
13582         const unsigned char *addr;
13583         int len;
13584
13585         addr = of_get_property(dp, "local-mac-address", &len);
13586         if (addr && len == 6) {
13587                 memcpy(dev->dev_addr, addr, 6);
13588                 memcpy(dev->perm_addr, dev->dev_addr, 6);
13589                 return 0;
13590         }
13591         return -ENODEV;
13592 }
13593
13594 static int __devinit tg3_get_default_macaddr_sparc(struct tg3 *tp)
13595 {
13596         struct net_device *dev = tp->dev;
13597
13598         memcpy(dev->dev_addr, idprom->id_ethaddr, 6);
13599         memcpy(dev->perm_addr, idprom->id_ethaddr, 6);
13600         return 0;
13601 }
13602 #endif
13603
13604 static int __devinit tg3_get_device_address(struct tg3 *tp)
13605 {
13606         struct net_device *dev = tp->dev;
13607         u32 hi, lo, mac_offset;
13608         int addr_ok = 0;
13609
13610 #ifdef CONFIG_SPARC
13611         if (!tg3_get_macaddr_sparc(tp))
13612                 return 0;
13613 #endif
13614
13615         mac_offset = 0x7c;
13616         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) ||
13617             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
13618                 if (tr32(TG3PCI_DUAL_MAC_CTRL) & DUAL_MAC_CTRL_ID)
13619                         mac_offset = 0xcc;
13620                 if (tg3_nvram_lock(tp))
13621                         tw32_f(NVRAM_CMD, NVRAM_CMD_RESET);
13622                 else
13623                         tg3_nvram_unlock(tp);
13624         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
13625                    GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719) {
13626                 if (PCI_FUNC(tp->pdev->devfn) & 1)
13627                         mac_offset = 0xcc;
13628                 if (PCI_FUNC(tp->pdev->devfn) > 1)
13629                         mac_offset += 0x18c;
13630         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
13631                 mac_offset = 0x10;
13632
13633         /* First try to get it from MAC address mailbox. */
13634         tg3_read_mem(tp, NIC_SRAM_MAC_ADDR_HIGH_MBOX, &hi);
13635         if ((hi >> 16) == 0x484b) {
13636                 dev->dev_addr[0] = (hi >>  8) & 0xff;
13637                 dev->dev_addr[1] = (hi >>  0) & 0xff;
13638
13639                 tg3_read_mem(tp, NIC_SRAM_MAC_ADDR_LOW_MBOX, &lo);
13640                 dev->dev_addr[2] = (lo >> 24) & 0xff;
13641                 dev->dev_addr[3] = (lo >> 16) & 0xff;
13642                 dev->dev_addr[4] = (lo >>  8) & 0xff;
13643                 dev->dev_addr[5] = (lo >>  0) & 0xff;
13644
13645                 /* Some old bootcode may report a 0 MAC address in SRAM */
13646                 addr_ok = is_valid_ether_addr(&dev->dev_addr[0]);
13647         }
13648         if (!addr_ok) {
13649                 /* Next, try NVRAM. */
13650                 if (!(tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) &&
13651                     !tg3_nvram_read_be32(tp, mac_offset + 0, &hi) &&
13652                     !tg3_nvram_read_be32(tp, mac_offset + 4, &lo)) {
13653                         memcpy(&dev->dev_addr[0], ((char *)&hi) + 2, 2);
13654                         memcpy(&dev->dev_addr[2], (char *)&lo, sizeof(lo));
13655                 }
13656                 /* Finally just fetch it out of the MAC control regs. */
13657                 else {
13658                         hi = tr32(MAC_ADDR_0_HIGH);
13659                         lo = tr32(MAC_ADDR_0_LOW);
13660
13661                         dev->dev_addr[5] = lo & 0xff;
13662                         dev->dev_addr[4] = (lo >> 8) & 0xff;
13663                         dev->dev_addr[3] = (lo >> 16) & 0xff;
13664                         dev->dev_addr[2] = (lo >> 24) & 0xff;
13665                         dev->dev_addr[1] = hi & 0xff;
13666                         dev->dev_addr[0] = (hi >> 8) & 0xff;
13667                 }
13668         }
13669
13670         if (!is_valid_ether_addr(&dev->dev_addr[0])) {
13671 #ifdef CONFIG_SPARC
13672                 if (!tg3_get_default_macaddr_sparc(tp))
13673                         return 0;
13674 #endif
13675                 return -EINVAL;
13676         }
13677         memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
13678         return 0;
13679 }
13680
13681 #define BOUNDARY_SINGLE_CACHELINE       1
13682 #define BOUNDARY_MULTI_CACHELINE        2
13683
13684 static u32 __devinit tg3_calc_dma_bndry(struct tg3 *tp, u32 val)
13685 {
13686         int cacheline_size;
13687         u8 byte;
13688         int goal;
13689
13690         pci_read_config_byte(tp->pdev, PCI_CACHE_LINE_SIZE, &byte);
13691         if (byte == 0)
13692                 cacheline_size = 1024;
13693         else
13694                 cacheline_size = (int) byte * 4;
13695
13696         /* On 5703 and later chips, the boundary bits have no
13697          * effect.
13698          */
13699         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
13700             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701 &&
13701             !(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS))
13702                 goto out;
13703
13704 #if defined(CONFIG_PPC64) || defined(CONFIG_IA64) || defined(CONFIG_PARISC)
13705         goal = BOUNDARY_MULTI_CACHELINE;
13706 #else
13707 #if defined(CONFIG_SPARC64) || defined(CONFIG_ALPHA)
13708         goal = BOUNDARY_SINGLE_CACHELINE;
13709 #else
13710         goal = 0;
13711 #endif
13712 #endif
13713
13714         if (tp->tg3_flags3 & TG3_FLG3_5717_PLUS) {
13715                 val = goal ? 0 : DMA_RWCTRL_DIS_CACHE_ALIGNMENT;
13716                 goto out;
13717         }
13718
13719         if (!goal)
13720                 goto out;
13721
13722         /* PCI controllers on most RISC systems tend to disconnect
13723          * when a device tries to burst across a cache-line boundary.
13724          * Therefore, letting tg3 do so just wastes PCI bandwidth.
13725          *
13726          * Unfortunately, for PCI-E there are only limited
13727          * write-side controls for this, and thus for reads
13728          * we will still get the disconnects.  We'll also waste
13729          * these PCI cycles for both read and write for chips
13730          * other than 5700 and 5701 which do not implement the
13731          * boundary bits.
13732          */
13733         if ((tp->tg3_flags & TG3_FLAG_PCIX_MODE) &&
13734             !(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS)) {
13735                 switch (cacheline_size) {
13736                 case 16:
13737                 case 32:
13738                 case 64:
13739                 case 128:
13740                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
13741                                 val |= (DMA_RWCTRL_READ_BNDRY_128_PCIX |
13742                                         DMA_RWCTRL_WRITE_BNDRY_128_PCIX);
13743                         } else {
13744                                 val |= (DMA_RWCTRL_READ_BNDRY_384_PCIX |
13745                                         DMA_RWCTRL_WRITE_BNDRY_384_PCIX);
13746                         }
13747                         break;
13748
13749                 case 256:
13750                         val |= (DMA_RWCTRL_READ_BNDRY_256_PCIX |
13751                                 DMA_RWCTRL_WRITE_BNDRY_256_PCIX);
13752                         break;
13753
13754                 default:
13755                         val |= (DMA_RWCTRL_READ_BNDRY_384_PCIX |
13756                                 DMA_RWCTRL_WRITE_BNDRY_384_PCIX);
13757                         break;
13758                 }
13759         } else if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
13760                 switch (cacheline_size) {
13761                 case 16:
13762                 case 32:
13763                 case 64:
13764                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
13765                                 val &= ~DMA_RWCTRL_WRITE_BNDRY_DISAB_PCIE;
13766                                 val |= DMA_RWCTRL_WRITE_BNDRY_64_PCIE;
13767                                 break;
13768                         }
13769                         /* fallthrough */
13770                 case 128:
13771                 default:
13772                         val &= ~DMA_RWCTRL_WRITE_BNDRY_DISAB_PCIE;
13773                         val |= DMA_RWCTRL_WRITE_BNDRY_128_PCIE;
13774                         break;
13775                 }
13776         } else {
13777                 switch (cacheline_size) {
13778                 case 16:
13779                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
13780                                 val |= (DMA_RWCTRL_READ_BNDRY_16 |
13781                                         DMA_RWCTRL_WRITE_BNDRY_16);
13782                                 break;
13783                         }
13784                         /* fallthrough */
13785                 case 32:
13786                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
13787                                 val |= (DMA_RWCTRL_READ_BNDRY_32 |
13788                                         DMA_RWCTRL_WRITE_BNDRY_32);
13789                                 break;
13790                         }
13791                         /* fallthrough */
13792                 case 64:
13793                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
13794                                 val |= (DMA_RWCTRL_READ_BNDRY_64 |
13795                                         DMA_RWCTRL_WRITE_BNDRY_64);
13796                                 break;
13797                         }
13798                         /* fallthrough */
13799                 case 128:
13800                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
13801                                 val |= (DMA_RWCTRL_READ_BNDRY_128 |
13802                                         DMA_RWCTRL_WRITE_BNDRY_128);
13803                                 break;
13804                         }
13805                         /* fallthrough */
13806                 case 256:
13807                         val |= (DMA_RWCTRL_READ_BNDRY_256 |
13808                                 DMA_RWCTRL_WRITE_BNDRY_256);
13809                         break;
13810                 case 512:
13811                         val |= (DMA_RWCTRL_READ_BNDRY_512 |
13812                                 DMA_RWCTRL_WRITE_BNDRY_512);
13813                         break;
13814                 case 1024:
13815                 default:
13816                         val |= (DMA_RWCTRL_READ_BNDRY_1024 |
13817                                 DMA_RWCTRL_WRITE_BNDRY_1024);
13818                         break;
13819                 }
13820         }
13821
13822 out:
13823         return val;
13824 }
13825
13826 static int __devinit tg3_do_test_dma(struct tg3 *tp, u32 *buf, dma_addr_t buf_dma, int size, int to_device)
13827 {
13828         struct tg3_internal_buffer_desc test_desc;
13829         u32 sram_dma_descs;
13830         int i, ret;
13831
13832         sram_dma_descs = NIC_SRAM_DMA_DESC_POOL_BASE;
13833
13834         tw32(FTQ_RCVBD_COMP_FIFO_ENQDEQ, 0);
13835         tw32(FTQ_RCVDATA_COMP_FIFO_ENQDEQ, 0);
13836         tw32(RDMAC_STATUS, 0);
13837         tw32(WDMAC_STATUS, 0);
13838
13839         tw32(BUFMGR_MODE, 0);
13840         tw32(FTQ_RESET, 0);
13841
13842         test_desc.addr_hi = ((u64) buf_dma) >> 32;
13843         test_desc.addr_lo = buf_dma & 0xffffffff;
13844         test_desc.nic_mbuf = 0x00002100;
13845         test_desc.len = size;
13846
13847         /*
13848          * HP ZX1 was seeing test failures for 5701 cards running at 33Mhz
13849          * the *second* time the tg3 driver was getting loaded after an
13850          * initial scan.
13851          *
13852          * Broadcom tells me:
13853          *   ...the DMA engine is connected to the GRC block and a DMA
13854          *   reset may affect the GRC block in some unpredictable way...
13855          *   The behavior of resets to individual blocks has not been tested.
13856          *
13857          * Broadcom noted the GRC reset will also reset all sub-components.
13858          */
13859         if (to_device) {
13860                 test_desc.cqid_sqid = (13 << 8) | 2;
13861
13862                 tw32_f(RDMAC_MODE, RDMAC_MODE_ENABLE);
13863                 udelay(40);
13864         } else {
13865                 test_desc.cqid_sqid = (16 << 8) | 7;
13866
13867                 tw32_f(WDMAC_MODE, WDMAC_MODE_ENABLE);
13868                 udelay(40);
13869         }
13870         test_desc.flags = 0x00000005;
13871
13872         for (i = 0; i < (sizeof(test_desc) / sizeof(u32)); i++) {
13873                 u32 val;
13874
13875                 val = *(((u32 *)&test_desc) + i);
13876                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR,
13877                                        sram_dma_descs + (i * sizeof(u32)));
13878                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_DATA, val);
13879         }
13880         pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, 0);
13881
13882         if (to_device)
13883                 tw32(FTQ_DMA_HIGH_READ_FIFO_ENQDEQ, sram_dma_descs);
13884         else
13885                 tw32(FTQ_DMA_HIGH_WRITE_FIFO_ENQDEQ, sram_dma_descs);
13886
13887         ret = -ENODEV;
13888         for (i = 0; i < 40; i++) {
13889                 u32 val;
13890
13891                 if (to_device)
13892                         val = tr32(FTQ_RCVBD_COMP_FIFO_ENQDEQ);
13893                 else
13894                         val = tr32(FTQ_RCVDATA_COMP_FIFO_ENQDEQ);
13895                 if ((val & 0xffff) == sram_dma_descs) {
13896                         ret = 0;
13897                         break;
13898                 }
13899
13900                 udelay(100);
13901         }
13902
13903         return ret;
13904 }
13905
13906 #define TEST_BUFFER_SIZE        0x2000
13907
13908 static int __devinit tg3_test_dma(struct tg3 *tp)
13909 {
13910         dma_addr_t buf_dma;
13911         u32 *buf, saved_dma_rwctrl;
13912         int ret = 0;
13913
13914         buf = pci_alloc_consistent(tp->pdev, TEST_BUFFER_SIZE, &buf_dma);
13915         if (!buf) {
13916                 ret = -ENOMEM;
13917                 goto out_nofree;
13918         }
13919
13920         tp->dma_rwctrl = ((0x7 << DMA_RWCTRL_PCI_WRITE_CMD_SHIFT) |
13921                           (0x6 << DMA_RWCTRL_PCI_READ_CMD_SHIFT));
13922
13923         tp->dma_rwctrl = tg3_calc_dma_bndry(tp, tp->dma_rwctrl);
13924
13925         if (tp->tg3_flags3 & TG3_FLG3_5717_PLUS)
13926                 goto out;
13927
13928         if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
13929                 /* DMA read watermark not used on PCIE */
13930                 tp->dma_rwctrl |= 0x00180000;
13931         } else if (!(tp->tg3_flags & TG3_FLAG_PCIX_MODE)) {
13932                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 ||
13933                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750)
13934                         tp->dma_rwctrl |= 0x003f0000;
13935                 else
13936                         tp->dma_rwctrl |= 0x003f000f;
13937         } else {
13938                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
13939                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
13940                         u32 ccval = (tr32(TG3PCI_CLOCK_CTRL) & 0x1f);
13941                         u32 read_water = 0x7;
13942
13943                         /* If the 5704 is behind the EPB bridge, we can
13944                          * do the less restrictive ONE_DMA workaround for
13945                          * better performance.
13946                          */
13947                         if ((tp->tg3_flags & TG3_FLAG_40BIT_DMA_BUG) &&
13948                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704)
13949                                 tp->dma_rwctrl |= 0x8000;
13950                         else if (ccval == 0x6 || ccval == 0x7)
13951                                 tp->dma_rwctrl |= DMA_RWCTRL_ONE_DMA;
13952
13953                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703)
13954                                 read_water = 4;
13955                         /* Set bit 23 to enable PCIX hw bug fix */
13956                         tp->dma_rwctrl |=
13957                                 (read_water << DMA_RWCTRL_READ_WATER_SHIFT) |
13958                                 (0x3 << DMA_RWCTRL_WRITE_WATER_SHIFT) |
13959                                 (1 << 23);
13960                 } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780) {
13961                         /* 5780 always in PCIX mode */
13962                         tp->dma_rwctrl |= 0x00144000;
13963                 } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714) {
13964                         /* 5714 always in PCIX mode */
13965                         tp->dma_rwctrl |= 0x00148000;
13966                 } else {
13967                         tp->dma_rwctrl |= 0x001b000f;
13968                 }
13969         }
13970
13971         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
13972             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704)
13973                 tp->dma_rwctrl &= 0xfffffff0;
13974
13975         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
13976             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
13977                 /* Remove this if it causes problems for some boards. */
13978                 tp->dma_rwctrl |= DMA_RWCTRL_USE_MEM_READ_MULT;
13979
13980                 /* On 5700/5701 chips, we need to set this bit.
13981                  * Otherwise the chip will issue cacheline transactions
13982                  * to streamable DMA memory with not all the byte
13983                  * enables turned on.  This is an error on several
13984                  * RISC PCI controllers, in particular sparc64.
13985                  *
13986                  * On 5703/5704 chips, this bit has been reassigned
13987                  * a different meaning.  In particular, it is used
13988                  * on those chips to enable a PCI-X workaround.
13989                  */
13990                 tp->dma_rwctrl |= DMA_RWCTRL_ASSERT_ALL_BE;
13991         }
13992
13993         tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
13994
13995 #if 0
13996         /* Unneeded, already done by tg3_get_invariants.  */
13997         tg3_switch_clocks(tp);
13998 #endif
13999
14000         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
14001             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701)
14002                 goto out;
14003
14004         /* It is best to perform DMA test with maximum write burst size
14005          * to expose the 5700/5701 write DMA bug.
14006          */
14007         saved_dma_rwctrl = tp->dma_rwctrl;
14008         tp->dma_rwctrl &= ~DMA_RWCTRL_WRITE_BNDRY_MASK;
14009         tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
14010
14011         while (1) {
14012                 u32 *p = buf, i;
14013
14014                 for (i = 0; i < TEST_BUFFER_SIZE / sizeof(u32); i++)
14015                         p[i] = i;
14016
14017                 /* Send the buffer to the chip. */
14018                 ret = tg3_do_test_dma(tp, buf, buf_dma, TEST_BUFFER_SIZE, 1);
14019                 if (ret) {
14020                         dev_err(&tp->pdev->dev,
14021                                 "%s: Buffer write failed. err = %d\n",
14022                                 __func__, ret);
14023                         break;
14024                 }
14025
14026 #if 0
14027                 /* validate data reached card RAM correctly. */
14028                 for (i = 0; i < TEST_BUFFER_SIZE / sizeof(u32); i++) {
14029                         u32 val;
14030                         tg3_read_mem(tp, 0x2100 + (i*4), &val);
14031                         if (le32_to_cpu(val) != p[i]) {
14032                                 dev_err(&tp->pdev->dev,
14033                                         "%s: Buffer corrupted on device! "
14034                                         "(%d != %d)\n", __func__, val, i);
14035                                 /* ret = -ENODEV here? */
14036                         }
14037                         p[i] = 0;
14038                 }
14039 #endif
14040                 /* Now read it back. */
14041                 ret = tg3_do_test_dma(tp, buf, buf_dma, TEST_BUFFER_SIZE, 0);
14042                 if (ret) {
14043                         dev_err(&tp->pdev->dev, "%s: Buffer read failed. "
14044                                 "err = %d\n", __func__, ret);
14045                         break;
14046                 }
14047
14048                 /* Verify it. */
14049                 for (i = 0; i < TEST_BUFFER_SIZE / sizeof(u32); i++) {
14050                         if (p[i] == i)
14051                                 continue;
14052
14053                         if ((tp->dma_rwctrl & DMA_RWCTRL_WRITE_BNDRY_MASK) !=
14054                             DMA_RWCTRL_WRITE_BNDRY_16) {
14055                                 tp->dma_rwctrl &= ~DMA_RWCTRL_WRITE_BNDRY_MASK;
14056                                 tp->dma_rwctrl |= DMA_RWCTRL_WRITE_BNDRY_16;
14057                                 tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
14058                                 break;
14059                         } else {
14060                                 dev_err(&tp->pdev->dev,
14061                                         "%s: Buffer corrupted on read back! "
14062                                         "(%d != %d)\n", __func__, p[i], i);
14063                                 ret = -ENODEV;
14064                                 goto out;
14065                         }
14066                 }
14067
14068                 if (i == (TEST_BUFFER_SIZE / sizeof(u32))) {
14069                         /* Success. */
14070                         ret = 0;
14071                         break;
14072                 }
14073         }
14074         if ((tp->dma_rwctrl & DMA_RWCTRL_WRITE_BNDRY_MASK) !=
14075             DMA_RWCTRL_WRITE_BNDRY_16) {
14076                 static struct pci_device_id dma_wait_state_chipsets[] = {
14077                         { PCI_DEVICE(PCI_VENDOR_ID_APPLE,
14078                                      PCI_DEVICE_ID_APPLE_UNI_N_PCI15) },
14079                         { },
14080                 };
14081
14082                 /* DMA test passed without adjusting DMA boundary,
14083                  * now look for chipsets that are known to expose the
14084                  * DMA bug without failing the test.
14085                  */
14086                 if (pci_dev_present(dma_wait_state_chipsets)) {
14087                         tp->dma_rwctrl &= ~DMA_RWCTRL_WRITE_BNDRY_MASK;
14088                         tp->dma_rwctrl |= DMA_RWCTRL_WRITE_BNDRY_16;
14089                 } else {
14090                         /* Safe to use the calculated DMA boundary. */
14091                         tp->dma_rwctrl = saved_dma_rwctrl;
14092                 }
14093
14094                 tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
14095         }
14096
14097 out:
14098         pci_free_consistent(tp->pdev, TEST_BUFFER_SIZE, buf, buf_dma);
14099 out_nofree:
14100         return ret;
14101 }
14102
14103 static void __devinit tg3_init_link_config(struct tg3 *tp)
14104 {
14105         tp->link_config.advertising =
14106                 (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full |
14107                  ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full |
14108                  ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full |
14109                  ADVERTISED_Autoneg | ADVERTISED_MII);
14110         tp->link_config.speed = SPEED_INVALID;
14111         tp->link_config.duplex = DUPLEX_INVALID;
14112         tp->link_config.autoneg = AUTONEG_ENABLE;
14113         tp->link_config.active_speed = SPEED_INVALID;
14114         tp->link_config.active_duplex = DUPLEX_INVALID;
14115         tp->link_config.orig_speed = SPEED_INVALID;
14116         tp->link_config.orig_duplex = DUPLEX_INVALID;
14117         tp->link_config.orig_autoneg = AUTONEG_INVALID;
14118 }
14119
14120 static void __devinit tg3_init_bufmgr_config(struct tg3 *tp)
14121 {
14122         if (tp->tg3_flags3 & TG3_FLG3_5717_PLUS) {
14123                 tp->bufmgr_config.mbuf_read_dma_low_water =
14124                         DEFAULT_MB_RDMA_LOW_WATER_5705;
14125                 tp->bufmgr_config.mbuf_mac_rx_low_water =
14126                         DEFAULT_MB_MACRX_LOW_WATER_57765;
14127                 tp->bufmgr_config.mbuf_high_water =
14128                         DEFAULT_MB_HIGH_WATER_57765;
14129
14130                 tp->bufmgr_config.mbuf_read_dma_low_water_jumbo =
14131                         DEFAULT_MB_RDMA_LOW_WATER_5705;
14132                 tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo =
14133                         DEFAULT_MB_MACRX_LOW_WATER_JUMBO_57765;
14134                 tp->bufmgr_config.mbuf_high_water_jumbo =
14135                         DEFAULT_MB_HIGH_WATER_JUMBO_57765;
14136         } else if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
14137                 tp->bufmgr_config.mbuf_read_dma_low_water =
14138                         DEFAULT_MB_RDMA_LOW_WATER_5705;
14139                 tp->bufmgr_config.mbuf_mac_rx_low_water =
14140                         DEFAULT_MB_MACRX_LOW_WATER_5705;
14141                 tp->bufmgr_config.mbuf_high_water =
14142                         DEFAULT_MB_HIGH_WATER_5705;
14143                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
14144                         tp->bufmgr_config.mbuf_mac_rx_low_water =
14145                                 DEFAULT_MB_MACRX_LOW_WATER_5906;
14146                         tp->bufmgr_config.mbuf_high_water =
14147                                 DEFAULT_MB_HIGH_WATER_5906;
14148                 }
14149
14150                 tp->bufmgr_config.mbuf_read_dma_low_water_jumbo =
14151                         DEFAULT_MB_RDMA_LOW_WATER_JUMBO_5780;
14152                 tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo =
14153                         DEFAULT_MB_MACRX_LOW_WATER_JUMBO_5780;
14154                 tp->bufmgr_config.mbuf_high_water_jumbo =
14155                         DEFAULT_MB_HIGH_WATER_JUMBO_5780;
14156         } else {
14157                 tp->bufmgr_config.mbuf_read_dma_low_water =
14158                         DEFAULT_MB_RDMA_LOW_WATER;
14159                 tp->bufmgr_config.mbuf_mac_rx_low_water =
14160                         DEFAULT_MB_MACRX_LOW_WATER;
14161                 tp->bufmgr_config.mbuf_high_water =
14162                         DEFAULT_MB_HIGH_WATER;
14163
14164                 tp->bufmgr_config.mbuf_read_dma_low_water_jumbo =
14165                         DEFAULT_MB_RDMA_LOW_WATER_JUMBO;
14166                 tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo =
14167                         DEFAULT_MB_MACRX_LOW_WATER_JUMBO;
14168                 tp->bufmgr_config.mbuf_high_water_jumbo =
14169                         DEFAULT_MB_HIGH_WATER_JUMBO;
14170         }
14171
14172         tp->bufmgr_config.dma_low_water = DEFAULT_DMA_LOW_WATER;
14173         tp->bufmgr_config.dma_high_water = DEFAULT_DMA_HIGH_WATER;
14174 }
14175
14176 static char * __devinit tg3_phy_string(struct tg3 *tp)
14177 {
14178         switch (tp->phy_id & TG3_PHY_ID_MASK) {
14179         case TG3_PHY_ID_BCM5400:        return "5400";
14180         case TG3_PHY_ID_BCM5401:        return "5401";
14181         case TG3_PHY_ID_BCM5411:        return "5411";
14182         case TG3_PHY_ID_BCM5701:        return "5701";
14183         case TG3_PHY_ID_BCM5703:        return "5703";
14184         case TG3_PHY_ID_BCM5704:        return "5704";
14185         case TG3_PHY_ID_BCM5705:        return "5705";
14186         case TG3_PHY_ID_BCM5750:        return "5750";
14187         case TG3_PHY_ID_BCM5752:        return "5752";
14188         case TG3_PHY_ID_BCM5714:        return "5714";
14189         case TG3_PHY_ID_BCM5780:        return "5780";
14190         case TG3_PHY_ID_BCM5755:        return "5755";
14191         case TG3_PHY_ID_BCM5787:        return "5787";
14192         case TG3_PHY_ID_BCM5784:        return "5784";
14193         case TG3_PHY_ID_BCM5756:        return "5722/5756";
14194         case TG3_PHY_ID_BCM5906:        return "5906";
14195         case TG3_PHY_ID_BCM5761:        return "5761";
14196         case TG3_PHY_ID_BCM5718C:       return "5718C";
14197         case TG3_PHY_ID_BCM5718S:       return "5718S";
14198         case TG3_PHY_ID_BCM57765:       return "57765";
14199         case TG3_PHY_ID_BCM5719C:       return "5719C";
14200         case TG3_PHY_ID_BCM8002:        return "8002/serdes";
14201         case 0:                 return "serdes";
14202         default:                return "unknown";
14203         }
14204 }
14205
14206 static char * __devinit tg3_bus_string(struct tg3 *tp, char *str)
14207 {
14208         if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
14209                 strcpy(str, "PCI Express");
14210                 return str;
14211         } else if (tp->tg3_flags & TG3_FLAG_PCIX_MODE) {
14212                 u32 clock_ctrl = tr32(TG3PCI_CLOCK_CTRL) & 0x1f;
14213
14214                 strcpy(str, "PCIX:");
14215
14216                 if ((clock_ctrl == 7) ||
14217                     ((tr32(GRC_MISC_CFG) & GRC_MISC_CFG_BOARD_ID_MASK) ==
14218                      GRC_MISC_CFG_BOARD_ID_5704CIOBE))
14219                         strcat(str, "133MHz");
14220                 else if (clock_ctrl == 0)
14221                         strcat(str, "33MHz");
14222                 else if (clock_ctrl == 2)
14223                         strcat(str, "50MHz");
14224                 else if (clock_ctrl == 4)
14225                         strcat(str, "66MHz");
14226                 else if (clock_ctrl == 6)
14227                         strcat(str, "100MHz");
14228         } else {
14229                 strcpy(str, "PCI:");
14230                 if (tp->tg3_flags & TG3_FLAG_PCI_HIGH_SPEED)
14231                         strcat(str, "66MHz");
14232                 else
14233                         strcat(str, "33MHz");
14234         }
14235         if (tp->tg3_flags & TG3_FLAG_PCI_32BIT)
14236                 strcat(str, ":32-bit");
14237         else
14238                 strcat(str, ":64-bit");
14239         return str;
14240 }
14241
14242 static struct pci_dev * __devinit tg3_find_peer(struct tg3 *tp)
14243 {
14244         struct pci_dev *peer;
14245         unsigned int func, devnr = tp->pdev->devfn & ~7;
14246
14247         for (func = 0; func < 8; func++) {
14248                 peer = pci_get_slot(tp->pdev->bus, devnr | func);
14249                 if (peer && peer != tp->pdev)
14250                         break;
14251                 pci_dev_put(peer);
14252         }
14253         /* 5704 can be configured in single-port mode, set peer to
14254          * tp->pdev in that case.
14255          */
14256         if (!peer) {
14257                 peer = tp->pdev;
14258                 return peer;
14259         }
14260
14261         /*
14262          * We don't need to keep the refcount elevated; there's no way
14263          * to remove one half of this device without removing the other
14264          */
14265         pci_dev_put(peer);
14266
14267         return peer;
14268 }
14269
14270 static void __devinit tg3_init_coal(struct tg3 *tp)
14271 {
14272         struct ethtool_coalesce *ec = &tp->coal;
14273
14274         memset(ec, 0, sizeof(*ec));
14275         ec->cmd = ETHTOOL_GCOALESCE;
14276         ec->rx_coalesce_usecs = LOW_RXCOL_TICKS;
14277         ec->tx_coalesce_usecs = LOW_TXCOL_TICKS;
14278         ec->rx_max_coalesced_frames = LOW_RXMAX_FRAMES;
14279         ec->tx_max_coalesced_frames = LOW_TXMAX_FRAMES;
14280         ec->rx_coalesce_usecs_irq = DEFAULT_RXCOAL_TICK_INT;
14281         ec->tx_coalesce_usecs_irq = DEFAULT_TXCOAL_TICK_INT;
14282         ec->rx_max_coalesced_frames_irq = DEFAULT_RXCOAL_MAXF_INT;
14283         ec->tx_max_coalesced_frames_irq = DEFAULT_TXCOAL_MAXF_INT;
14284         ec->stats_block_coalesce_usecs = DEFAULT_STAT_COAL_TICKS;
14285
14286         if (tp->coalesce_mode & (HOSTCC_MODE_CLRTICK_RXBD |
14287                                  HOSTCC_MODE_CLRTICK_TXBD)) {
14288                 ec->rx_coalesce_usecs = LOW_RXCOL_TICKS_CLRTCKS;
14289                 ec->rx_coalesce_usecs_irq = DEFAULT_RXCOAL_TICK_INT_CLRTCKS;
14290                 ec->tx_coalesce_usecs = LOW_TXCOL_TICKS_CLRTCKS;
14291                 ec->tx_coalesce_usecs_irq = DEFAULT_TXCOAL_TICK_INT_CLRTCKS;
14292         }
14293
14294         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
14295                 ec->rx_coalesce_usecs_irq = 0;
14296                 ec->tx_coalesce_usecs_irq = 0;
14297                 ec->stats_block_coalesce_usecs = 0;
14298         }
14299 }
14300
14301 static const struct net_device_ops tg3_netdev_ops = {
14302         .ndo_open               = tg3_open,
14303         .ndo_stop               = tg3_close,
14304         .ndo_start_xmit         = tg3_start_xmit,
14305         .ndo_get_stats64        = tg3_get_stats64,
14306         .ndo_validate_addr      = eth_validate_addr,
14307         .ndo_set_multicast_list = tg3_set_rx_mode,
14308         .ndo_set_mac_address    = tg3_set_mac_addr,
14309         .ndo_do_ioctl           = tg3_ioctl,
14310         .ndo_tx_timeout         = tg3_tx_timeout,
14311         .ndo_change_mtu         = tg3_change_mtu,
14312 #if TG3_VLAN_TAG_USED
14313         .ndo_vlan_rx_register   = tg3_vlan_rx_register,
14314 #endif
14315 #ifdef CONFIG_NET_POLL_CONTROLLER
14316         .ndo_poll_controller    = tg3_poll_controller,
14317 #endif
14318 };
14319
14320 static const struct net_device_ops tg3_netdev_ops_dma_bug = {
14321         .ndo_open               = tg3_open,
14322         .ndo_stop               = tg3_close,
14323         .ndo_start_xmit         = tg3_start_xmit_dma_bug,
14324         .ndo_get_stats64        = tg3_get_stats64,
14325         .ndo_validate_addr      = eth_validate_addr,
14326         .ndo_set_multicast_list = tg3_set_rx_mode,
14327         .ndo_set_mac_address    = tg3_set_mac_addr,
14328         .ndo_do_ioctl           = tg3_ioctl,
14329         .ndo_tx_timeout         = tg3_tx_timeout,
14330         .ndo_change_mtu         = tg3_change_mtu,
14331 #if TG3_VLAN_TAG_USED
14332         .ndo_vlan_rx_register   = tg3_vlan_rx_register,
14333 #endif
14334 #ifdef CONFIG_NET_POLL_CONTROLLER
14335         .ndo_poll_controller    = tg3_poll_controller,
14336 #endif
14337 };
14338
14339 static int __devinit tg3_init_one(struct pci_dev *pdev,
14340                                   const struct pci_device_id *ent)
14341 {
14342         struct net_device *dev;
14343         struct tg3 *tp;
14344         int i, err, pm_cap;
14345         u32 sndmbx, rcvmbx, intmbx;
14346         char str[40];
14347         u64 dma_mask, persist_dma_mask;
14348
14349         printk_once(KERN_INFO "%s\n", version);
14350
14351         err = pci_enable_device(pdev);
14352         if (err) {
14353                 dev_err(&pdev->dev, "Cannot enable PCI device, aborting\n");
14354                 return err;
14355         }
14356
14357         err = pci_request_regions(pdev, DRV_MODULE_NAME);
14358         if (err) {
14359                 dev_err(&pdev->dev, "Cannot obtain PCI resources, aborting\n");
14360                 goto err_out_disable_pdev;
14361         }
14362
14363         pci_set_master(pdev);
14364
14365         /* Find power-management capability. */
14366         pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM);
14367         if (pm_cap == 0) {
14368                 dev_err(&pdev->dev,
14369                         "Cannot find Power Management capability, aborting\n");
14370                 err = -EIO;
14371                 goto err_out_free_res;
14372         }
14373
14374         dev = alloc_etherdev_mq(sizeof(*tp), TG3_IRQ_MAX_VECS);
14375         if (!dev) {
14376                 dev_err(&pdev->dev, "Etherdev alloc failed, aborting\n");
14377                 err = -ENOMEM;
14378                 goto err_out_free_res;
14379         }
14380
14381         SET_NETDEV_DEV(dev, &pdev->dev);
14382
14383 #if TG3_VLAN_TAG_USED
14384         dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
14385 #endif
14386
14387         tp = netdev_priv(dev);
14388         tp->pdev = pdev;
14389         tp->dev = dev;
14390         tp->pm_cap = pm_cap;
14391         tp->rx_mode = TG3_DEF_RX_MODE;
14392         tp->tx_mode = TG3_DEF_TX_MODE;
14393
14394         if (tg3_debug > 0)
14395                 tp->msg_enable = tg3_debug;
14396         else
14397                 tp->msg_enable = TG3_DEF_MSG_ENABLE;
14398
14399         /* The word/byte swap controls here control register access byte
14400          * swapping.  DMA data byte swapping is controlled in the GRC_MODE
14401          * setting below.
14402          */
14403         tp->misc_host_ctrl =
14404                 MISC_HOST_CTRL_MASK_PCI_INT |
14405                 MISC_HOST_CTRL_WORD_SWAP |
14406                 MISC_HOST_CTRL_INDIR_ACCESS |
14407                 MISC_HOST_CTRL_PCISTATE_RW;
14408
14409         /* The NONFRM (non-frame) byte/word swap controls take effect
14410          * on descriptor entries, anything which isn't packet data.
14411          *
14412          * The StrongARM chips on the board (one for tx, one for rx)
14413          * are running in big-endian mode.
14414          */
14415         tp->grc_mode = (GRC_MODE_WSWAP_DATA | GRC_MODE_BSWAP_DATA |
14416                         GRC_MODE_WSWAP_NONFRM_DATA);
14417 #ifdef __BIG_ENDIAN
14418         tp->grc_mode |= GRC_MODE_BSWAP_NONFRM_DATA;
14419 #endif
14420         spin_lock_init(&tp->lock);
14421         spin_lock_init(&tp->indirect_lock);
14422         INIT_WORK(&tp->reset_task, tg3_reset_task);
14423
14424         tp->regs = pci_ioremap_bar(pdev, BAR_0);
14425         if (!tp->regs) {
14426                 dev_err(&pdev->dev, "Cannot map device registers, aborting\n");
14427                 err = -ENOMEM;
14428                 goto err_out_free_dev;
14429         }
14430
14431         tg3_init_link_config(tp);
14432
14433         tp->rx_pending = TG3_DEF_RX_RING_PENDING;
14434         tp->rx_jumbo_pending = TG3_DEF_RX_JUMBO_RING_PENDING;
14435
14436         dev->ethtool_ops = &tg3_ethtool_ops;
14437         dev->watchdog_timeo = TG3_TX_TIMEOUT;
14438         dev->irq = pdev->irq;
14439
14440         err = tg3_get_invariants(tp);
14441         if (err) {
14442                 dev_err(&pdev->dev,
14443                         "Problem fetching invariants of chip, aborting\n");
14444                 goto err_out_iounmap;
14445         }
14446
14447         if ((tp->tg3_flags3 & TG3_FLG3_5755_PLUS) &&
14448             tp->pci_chip_rev_id != CHIPREV_ID_5717_A0 &&
14449             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5719)
14450                 dev->netdev_ops = &tg3_netdev_ops;
14451         else
14452                 dev->netdev_ops = &tg3_netdev_ops_dma_bug;
14453
14454
14455         /* The EPB bridge inside 5714, 5715, and 5780 and any
14456          * device behind the EPB cannot support DMA addresses > 40-bit.
14457          * On 64-bit systems with IOMMU, use 40-bit dma_mask.
14458          * On 64-bit systems without IOMMU, use 64-bit dma_mask and
14459          * do DMA address check in tg3_start_xmit().
14460          */
14461         if (tp->tg3_flags2 & TG3_FLG2_IS_5788)
14462                 persist_dma_mask = dma_mask = DMA_BIT_MASK(32);
14463         else if (tp->tg3_flags & TG3_FLAG_40BIT_DMA_BUG) {
14464                 persist_dma_mask = dma_mask = DMA_BIT_MASK(40);
14465 #ifdef CONFIG_HIGHMEM
14466                 dma_mask = DMA_BIT_MASK(64);
14467 #endif
14468         } else
14469                 persist_dma_mask = dma_mask = DMA_BIT_MASK(64);
14470
14471         /* Configure DMA attributes. */
14472         if (dma_mask > DMA_BIT_MASK(32)) {
14473                 err = pci_set_dma_mask(pdev, dma_mask);
14474                 if (!err) {
14475                         dev->features |= NETIF_F_HIGHDMA;
14476                         err = pci_set_consistent_dma_mask(pdev,
14477                                                           persist_dma_mask);
14478                         if (err < 0) {
14479                                 dev_err(&pdev->dev, "Unable to obtain 64 bit "
14480                                         "DMA for consistent allocations\n");
14481                                 goto err_out_iounmap;
14482                         }
14483                 }
14484         }
14485         if (err || dma_mask == DMA_BIT_MASK(32)) {
14486                 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
14487                 if (err) {
14488                         dev_err(&pdev->dev,
14489                                 "No usable DMA configuration, aborting\n");
14490                         goto err_out_iounmap;
14491                 }
14492         }
14493
14494         tg3_init_bufmgr_config(tp);
14495
14496         /* Selectively allow TSO based on operating conditions */
14497         if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO) ||
14498             (tp->fw_needed && !(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)))
14499                 tp->tg3_flags2 |= TG3_FLG2_TSO_CAPABLE;
14500         else {
14501                 tp->tg3_flags2 &= ~(TG3_FLG2_TSO_CAPABLE | TG3_FLG2_TSO_BUG);
14502                 tp->fw_needed = NULL;
14503         }
14504
14505         if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0)
14506                 tp->fw_needed = FIRMWARE_TG3;
14507
14508         /* TSO is on by default on chips that support hardware TSO.
14509          * Firmware TSO on older chips gives lower performance, so it
14510          * is off by default, but can be enabled using ethtool.
14511          */
14512         if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO) &&
14513             (dev->features & NETIF_F_IP_CSUM)) {
14514                 dev->features |= NETIF_F_TSO;
14515                 vlan_features_add(dev, NETIF_F_TSO);
14516         }
14517         if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_2) ||
14518             (tp->tg3_flags2 & TG3_FLG2_HW_TSO_3)) {
14519                 if (dev->features & NETIF_F_IPV6_CSUM) {
14520                         dev->features |= NETIF_F_TSO6;
14521                         vlan_features_add(dev, NETIF_F_TSO6);
14522                 }
14523                 if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_3) ||
14524                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
14525                     (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
14526                      GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) ||
14527                         GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
14528                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780) {
14529                         dev->features |= NETIF_F_TSO_ECN;
14530                         vlan_features_add(dev, NETIF_F_TSO_ECN);
14531                 }
14532         }
14533
14534         if (tp->pci_chip_rev_id == CHIPREV_ID_5705_A1 &&
14535             !(tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) &&
14536             !(tr32(TG3PCI_PCISTATE) & PCISTATE_BUS_SPEED_HIGH)) {
14537                 tp->tg3_flags2 |= TG3_FLG2_MAX_RXPEND_64;
14538                 tp->rx_pending = 63;
14539         }
14540
14541         err = tg3_get_device_address(tp);
14542         if (err) {
14543                 dev_err(&pdev->dev,
14544                         "Could not obtain valid ethernet address, aborting\n");
14545                 goto err_out_iounmap;
14546         }
14547
14548         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
14549                 tp->aperegs = pci_ioremap_bar(pdev, BAR_2);
14550                 if (!tp->aperegs) {
14551                         dev_err(&pdev->dev,
14552                                 "Cannot map APE registers, aborting\n");
14553                         err = -ENOMEM;
14554                         goto err_out_iounmap;
14555                 }
14556
14557                 tg3_ape_lock_init(tp);
14558
14559                 if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF)
14560                         tg3_read_dash_ver(tp);
14561         }
14562
14563         /*
14564          * Reset chip in case UNDI or EFI driver did not shutdown
14565          * DMA self test will enable WDMAC and we'll see (spurious)
14566          * pending DMA on the PCI bus at that point.
14567          */
14568         if ((tr32(HOSTCC_MODE) & HOSTCC_MODE_ENABLE) ||
14569             (tr32(WDMAC_MODE) & WDMAC_MODE_ENABLE)) {
14570                 tw32(MEMARB_MODE, MEMARB_MODE_ENABLE);
14571                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
14572         }
14573
14574         err = tg3_test_dma(tp);
14575         if (err) {
14576                 dev_err(&pdev->dev, "DMA engine test failed, aborting\n");
14577                 goto err_out_apeunmap;
14578         }
14579
14580         /* flow control autonegotiation is default behavior */
14581         tp->tg3_flags |= TG3_FLAG_PAUSE_AUTONEG;
14582         tp->link_config.flowctrl = FLOW_CTRL_TX | FLOW_CTRL_RX;
14583
14584         intmbx = MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW;
14585         rcvmbx = MAILBOX_RCVRET_CON_IDX_0 + TG3_64BIT_REG_LOW;
14586         sndmbx = MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW;
14587         for (i = 0; i < TG3_IRQ_MAX_VECS; i++) {
14588                 struct tg3_napi *tnapi = &tp->napi[i];
14589
14590                 tnapi->tp = tp;
14591                 tnapi->tx_pending = TG3_DEF_TX_RING_PENDING;
14592
14593                 tnapi->int_mbox = intmbx;
14594                 if (i < 4)
14595                         intmbx += 0x8;
14596                 else
14597                         intmbx += 0x4;
14598
14599                 tnapi->consmbox = rcvmbx;
14600                 tnapi->prodmbox = sndmbx;
14601
14602                 if (i) {
14603                         tnapi->coal_now = HOSTCC_MODE_COAL_VEC1_NOW << (i - 1);
14604                         netif_napi_add(dev, &tnapi->napi, tg3_poll_msix, 64);
14605                 } else {
14606                         tnapi->coal_now = HOSTCC_MODE_NOW;
14607                         netif_napi_add(dev, &tnapi->napi, tg3_poll, 64);
14608                 }
14609
14610                 if (!(tp->tg3_flags & TG3_FLAG_SUPPORT_MSIX))
14611                         break;
14612
14613                 /*
14614                  * If we support MSIX, we'll be using RSS.  If we're using
14615                  * RSS, the first vector only handles link interrupts and the
14616                  * remaining vectors handle rx and tx interrupts.  Reuse the
14617                  * mailbox values for the next iteration.  The values we setup
14618                  * above are still useful for the single vectored mode.
14619                  */
14620                 if (!i)
14621                         continue;
14622
14623                 rcvmbx += 0x8;
14624
14625                 if (sndmbx & 0x4)
14626                         sndmbx -= 0x4;
14627                 else
14628                         sndmbx += 0xc;
14629         }
14630
14631         tg3_init_coal(tp);
14632
14633         pci_set_drvdata(pdev, dev);
14634
14635         err = register_netdev(dev);
14636         if (err) {
14637                 dev_err(&pdev->dev, "Cannot register net device, aborting\n");
14638                 goto err_out_apeunmap;
14639         }
14640
14641         netdev_info(dev, "Tigon3 [partno(%s) rev %04x] (%s) MAC address %pM\n",
14642                     tp->board_part_number,
14643                     tp->pci_chip_rev_id,
14644                     tg3_bus_string(tp, str),
14645                     dev->dev_addr);
14646
14647         if (tp->phy_flags & TG3_PHYFLG_IS_CONNECTED) {
14648                 struct phy_device *phydev;
14649                 phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
14650                 netdev_info(dev,
14651                             "attached PHY driver [%s] (mii_bus:phy_addr=%s)\n",
14652                             phydev->drv->name, dev_name(&phydev->dev));
14653         } else {
14654                 char *ethtype;
14655
14656                 if (tp->phy_flags & TG3_PHYFLG_10_100_ONLY)
14657                         ethtype = "10/100Base-TX";
14658                 else if (tp->phy_flags & TG3_PHYFLG_ANY_SERDES)
14659                         ethtype = "1000Base-SX";
14660                 else
14661                         ethtype = "10/100/1000Base-T";
14662
14663                 netdev_info(dev, "attached PHY is %s (%s Ethernet) "
14664                             "(WireSpeed[%d])\n", tg3_phy_string(tp), ethtype,
14665                           (tp->phy_flags & TG3_PHYFLG_NO_ETH_WIRE_SPEED) == 0);
14666         }
14667
14668         netdev_info(dev, "RXcsums[%d] LinkChgREG[%d] MIirq[%d] ASF[%d] TSOcap[%d]\n",
14669                     (tp->tg3_flags & TG3_FLAG_RX_CHECKSUMS) != 0,
14670                     (tp->tg3_flags & TG3_FLAG_USE_LINKCHG_REG) != 0,
14671                     (tp->phy_flags & TG3_PHYFLG_USE_MI_INTERRUPT) != 0,
14672                     (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) != 0,
14673                     (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) != 0);
14674         netdev_info(dev, "dma_rwctrl[%08x] dma_mask[%d-bit]\n",
14675                     tp->dma_rwctrl,
14676                     pdev->dma_mask == DMA_BIT_MASK(32) ? 32 :
14677                     ((u64)pdev->dma_mask) == DMA_BIT_MASK(40) ? 40 : 64);
14678
14679         return 0;
14680
14681 err_out_apeunmap:
14682         if (tp->aperegs) {
14683                 iounmap(tp->aperegs);
14684                 tp->aperegs = NULL;
14685         }
14686
14687 err_out_iounmap:
14688         if (tp->regs) {
14689                 iounmap(tp->regs);
14690                 tp->regs = NULL;
14691         }
14692
14693 err_out_free_dev:
14694         free_netdev(dev);
14695
14696 err_out_free_res:
14697         pci_release_regions(pdev);
14698
14699 err_out_disable_pdev:
14700         pci_disable_device(pdev);
14701         pci_set_drvdata(pdev, NULL);
14702         return err;
14703 }
14704
14705 static void __devexit tg3_remove_one(struct pci_dev *pdev)
14706 {
14707         struct net_device *dev = pci_get_drvdata(pdev);
14708
14709         if (dev) {
14710                 struct tg3 *tp = netdev_priv(dev);
14711
14712                 if (tp->fw)
14713                         release_firmware(tp->fw);
14714
14715                 flush_scheduled_work();
14716
14717                 if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
14718                         tg3_phy_fini(tp);
14719                         tg3_mdio_fini(tp);
14720                 }
14721
14722                 unregister_netdev(dev);
14723                 if (tp->aperegs) {
14724                         iounmap(tp->aperegs);
14725                         tp->aperegs = NULL;
14726                 }
14727                 if (tp->regs) {
14728                         iounmap(tp->regs);
14729                         tp->regs = NULL;
14730                 }
14731                 free_netdev(dev);
14732                 pci_release_regions(pdev);
14733                 pci_disable_device(pdev);
14734                 pci_set_drvdata(pdev, NULL);
14735         }
14736 }
14737
14738 static int tg3_suspend(struct pci_dev *pdev, pm_message_t state)
14739 {
14740         struct net_device *dev = pci_get_drvdata(pdev);
14741         struct tg3 *tp = netdev_priv(dev);
14742         pci_power_t target_state;
14743         int err;
14744
14745         /* PCI register 4 needs to be saved whether netif_running() or not.
14746          * MSI address and data need to be saved if using MSI and
14747          * netif_running().
14748          */
14749         pci_save_state(pdev);
14750
14751         if (!netif_running(dev))
14752                 return 0;
14753
14754         flush_scheduled_work();
14755         tg3_phy_stop(tp);
14756         tg3_netif_stop(tp);
14757
14758         del_timer_sync(&tp->timer);
14759
14760         tg3_full_lock(tp, 1);
14761         tg3_disable_ints(tp);
14762         tg3_full_unlock(tp);
14763
14764         netif_device_detach(dev);
14765
14766         tg3_full_lock(tp, 0);
14767         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
14768         tp->tg3_flags &= ~TG3_FLAG_INIT_COMPLETE;
14769         tg3_full_unlock(tp);
14770
14771         target_state = pdev->pm_cap ? pci_target_state(pdev) : PCI_D3hot;
14772
14773         err = tg3_set_power_state(tp, target_state);
14774         if (err) {
14775                 int err2;
14776
14777                 tg3_full_lock(tp, 0);
14778
14779                 tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
14780                 err2 = tg3_restart_hw(tp, 1);
14781                 if (err2)
14782                         goto out;
14783
14784                 tp->timer.expires = jiffies + tp->timer_offset;
14785                 add_timer(&tp->timer);
14786
14787                 netif_device_attach(dev);
14788                 tg3_netif_start(tp);
14789
14790 out:
14791                 tg3_full_unlock(tp);
14792
14793                 if (!err2)
14794                         tg3_phy_start(tp);
14795         }
14796
14797         return err;
14798 }
14799
14800 static int tg3_resume(struct pci_dev *pdev)
14801 {
14802         struct net_device *dev = pci_get_drvdata(pdev);
14803         struct tg3 *tp = netdev_priv(dev);
14804         int err;
14805
14806         pci_restore_state(tp->pdev);
14807
14808         if (!netif_running(dev))
14809                 return 0;
14810
14811         err = tg3_set_power_state(tp, PCI_D0);
14812         if (err)
14813                 return err;
14814
14815         netif_device_attach(dev);
14816
14817         tg3_full_lock(tp, 0);
14818
14819         tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
14820         err = tg3_restart_hw(tp, 1);
14821         if (err)
14822                 goto out;
14823
14824         tp->timer.expires = jiffies + tp->timer_offset;
14825         add_timer(&tp->timer);
14826
14827         tg3_netif_start(tp);
14828
14829 out:
14830         tg3_full_unlock(tp);
14831
14832         if (!err)
14833                 tg3_phy_start(tp);
14834
14835         return err;
14836 }
14837
14838 static struct pci_driver tg3_driver = {
14839         .name           = DRV_MODULE_NAME,
14840         .id_table       = tg3_pci_tbl,
14841         .probe          = tg3_init_one,
14842         .remove         = __devexit_p(tg3_remove_one),
14843         .suspend        = tg3_suspend,
14844         .resume         = tg3_resume
14845 };
14846
14847 static int __init tg3_init(void)
14848 {
14849         return pci_register_driver(&tg3_driver);
14850 }
14851
14852 static void __exit tg3_cleanup(void)
14853 {
14854         pci_unregister_driver(&tg3_driver);
14855 }
14856
14857 module_init(tg3_init);
14858 module_exit(tg3_cleanup);