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  10  *      Derived from proprietary unpublished source code,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/kernel.h>
  22 #include <linux/types.h>
  23 #include <linux/compiler.h>
  24 #include <linux/slab.h>
  25 #include <linux/delay.h>
  26 #include <linux/in.h>
  27 #include <linux/init.h>
  28 #include <linux/ioport.h>
  29 #include <linux/pci.h>
  30 #include <linux/netdevice.h>
  31 #include <linux/etherdevice.h>
  32 #include <linux/skbuff.h>
  33 #include <linux/ethtool.h>
  34 #include <linux/mii.h>
  35 #include <linux/phy.h>
  36 #include <linux/brcmphy.h>
  37 #include <linux/if_vlan.h>
  38 #include <linux/ip.h>
  39 #include <linux/tcp.h>
  40 #include <linux/workqueue.h>
  41 #include <linux/prefetch.h>
  42 #include <linux/dma-mapping.h>
  43 #include <linux/firmware.h>
  44
  45 #include <net/checksum.h>
  46 #include <net/ip.h>
  47
  48 #include <asm/system.h>
  49 #include <asm/io.h>
  50 #include <asm/byteorder.h>
  51 #include <asm/uaccess.h>
  52
  53 #ifdef CONFIG_SPARC
  54 #include <asm/idprom.h>
  55 #include <asm/prom.h>
  56 #endif
  57
  58 #define BAR_0   0
  59 #define BAR_2   2
  60
  61 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
  62 #define TG3_VLAN_TAG_USED 1
  63 #else
  64 #define TG3_VLAN_TAG_USED 0
  65 #endif
  66
  67 #include "tg3.h"
  68
  69 #define DRV_MODULE_NAME         "tg3"
  70 #define DRV_MODULE_VERSION      "3.110"
  71 #define DRV_MODULE_RELDATE      "April 9, 2010"
  72
  73 #define TG3_DEF_MAC_MODE        0
  74 #define TG3_DEF_RX_MODE         0
  75 #define TG3_DEF_TX_MODE         0
  76 #define TG3_DEF_MSG_ENABLE        \
  77         (NETIF_MSG_DRV          | \
  78          NETIF_MSG_PROBE        | \
  79          NETIF_MSG_LINK         | \
  80          NETIF_MSG_TIMER        | \
  81          NETIF_MSG_IFDOWN       | \
  82          NETIF_MSG_IFUP         | \
  83          NETIF_MSG_RX_ERR       | \
  84          NETIF_MSG_TX_ERR)
  85
  86 /* length of time before we decide the hardware is borked,
  87  * and dev->tx_timeout() should be called to fix the problem
  88  */
  89 #define TG3_TX_TIMEOUT                  (5 * HZ)
  90
  91 /* hardware minimum and maximum for a single frame's data payload */
  92 #define TG3_MIN_MTU                     60
  93 #define TG3_MAX_MTU(tp) \
  94         ((tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) ? 9000 : 1500)
  95
  96 /* These numbers seem to be hard coded in the NIC firmware somehow.
  97  * You can't change the ring sizes, but you can change where you place
  98  * them in the NIC onboard memory.
  99  */
 100 #define TG3_RX_RING_SIZE                512
 101 #define TG3_DEF_RX_RING_PENDING         200
 102 #define TG3_RX_JUMBO_RING_SIZE          256
 103 #define TG3_DEF_RX_JUMBO_RING_PENDING   100
 104 #define TG3_RSS_INDIR_TBL_SIZE          128
 105
 106 /* Do not place this n-ring entries value into the tp struct itself,
 107  * we really want to expose these constants to GCC so that modulo et
 108  * al.  operations are done with shifts and masks instead of with
 109  * hw multiply/modulo instructions.  Another solution would be to
 110  * replace things like '% foo' with '& (foo - 1)'.
 111  */
 112 #define TG3_RX_RCB_RING_SIZE(tp)        \
 113         (((tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) && \
 114           !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) ? 1024 : 512)
 115
 116 #define TG3_TX_RING_SIZE                512
 117 #define TG3_DEF_TX_RING_PENDING         (TG3_TX_RING_SIZE - 1)
 118
 119 #define TG3_RX_RING_BYTES       (sizeof(struct tg3_rx_buffer_desc) * \
 120                                  TG3_RX_RING_SIZE)
 121 #define TG3_RX_JUMBO_RING_BYTES (sizeof(struct tg3_ext_rx_buffer_desc) * \
 122                                  TG3_RX_JUMBO_RING_SIZE)
 123 #define TG3_RX_RCB_RING_BYTES(tp) (sizeof(struct tg3_rx_buffer_desc) * \
 124                                  TG3_RX_RCB_RING_SIZE(tp))
 125 #define TG3_TX_RING_BYTES       (sizeof(struct tg3_tx_buffer_desc) * \
 126                                  TG3_TX_RING_SIZE)
 127 #define NEXT_TX(N)              (((N) + 1) & (TG3_TX_RING_SIZE - 1))
 128
 129 #define TG3_RX_DMA_ALIGN                16
 130 #define TG3_RX_HEADROOM                 ALIGN(VLAN_HLEN, TG3_RX_DMA_ALIGN)
 131
 132 #define TG3_DMA_BYTE_ENAB               64
 133
 134 #define TG3_RX_STD_DMA_SZ               1536
 135 #define TG3_RX_JMB_DMA_SZ               9046
 136
 137 #define TG3_RX_DMA_TO_MAP_SZ(x)         ((x) + TG3_DMA_BYTE_ENAB)
 138
 139 #define TG3_RX_STD_MAP_SZ               TG3_RX_DMA_TO_MAP_SZ(TG3_RX_STD_DMA_SZ)
 140 #define TG3_RX_JMB_MAP_SZ               TG3_RX_DMA_TO_MAP_SZ(TG3_RX_JMB_DMA_SZ)
 141
 142 #define TG3_RX_STD_BUFF_RING_SIZE \
 143         (sizeof(struct ring_info) * TG3_RX_RING_SIZE)
 144
 145 #define TG3_RX_JMB_BUFF_RING_SIZE \
 146         (sizeof(struct ring_info) * TG3_RX_JUMBO_RING_SIZE)
 147
 148 #define TG3_RSS_MIN_NUM_MSIX_VECS       2
 149
 150 /* Due to a hardware bug, the 5701 can only DMA to memory addresses
 151  * that are at least dword aligned when used in PCIX mode.  The driver
 152  * works around this bug by double copying the packet.  This workaround
 153  * is built into the normal double copy length check for efficiency.
 154  *
 155  * However, the double copy is only necessary on those architectures
 156  * where unaligned memory accesses are inefficient.  For those architectures
 157  * where unaligned memory accesses incur little penalty, we can reintegrate
 158  * the 5701 in the normal rx path.  Doing so saves a device structure
 159  * dereference by hardcoding the double copy threshold in place.
 160  */
 161 #define TG3_RX_COPY_THRESHOLD           256
 162 #if NET_IP_ALIGN == 0 || defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
 163         #define TG3_RX_COPY_THRESH(tp)  TG3_RX_COPY_THRESHOLD
 164 #else
 165         #define TG3_RX_COPY_THRESH(tp)  ((tp)->rx_copy_thresh)
 166 #endif
 167
 168 /* minimum number of free TX descriptors required to wake up TX process */
 169 #define TG3_TX_WAKEUP_THRESH(tnapi)             ((tnapi)->tx_pending / 4)
 170
 171 #define TG3_RAW_IP_ALIGN 2
 172
 173 /* number of ETHTOOL_GSTATS u64's */
 174 #define TG3_NUM_STATS           (sizeof(struct tg3_ethtool_stats)/sizeof(u64))
 175
 176 #define TG3_NUM_TEST            6
 177
 178 #define TG3_FW_UPDATE_TIMEOUT_SEC       5
 179
 180 #define FIRMWARE_TG3            "tigon/tg3.bin"
 181 #define FIRMWARE_TG3TSO         "tigon/tg3_tso.bin"
 182 #define FIRMWARE_TG3TSO5        "tigon/tg3_tso5.bin"
 183
 184 static char version[] __devinitdata =
 185         DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")";
 186
 187 MODULE_AUTHOR("David S. Miller (davem@redhat.com) and Jeff Garzik (jgarzik@pobox.com)");
 188 MODULE_DESCRIPTION("Broadcom Tigon3 ethernet driver");
 189 MODULE_LICENSE("GPL");
 190 MODULE_VERSION(DRV_MODULE_VERSION);
 191 MODULE_FIRMWARE(FIRMWARE_TG3);
 192 MODULE_FIRMWARE(FIRMWARE_TG3TSO);
 193 MODULE_FIRMWARE(FIRMWARE_TG3TSO5);
 194
 195 static int tg3_debug = -1;      /* -1 == use TG3_DEF_MSG_ENABLE as value */
 196 module_param(tg3_debug, int, 0);
 197 MODULE_PARM_DESC(tg3_debug, "Tigon3 bitmapped debugging message enable value");
 198
 199 static DEFINE_PCI_DEVICE_TABLE(tg3_pci_tbl) = {
 200         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5700)},
 201         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5701)},
 202         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702)},
 203         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5703)},
 204         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5704)},
 205         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702FE)},
 206         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705)},
 207         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705_2)},
 208         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705M)},
 209         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705M_2)},
 210         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702X)},
 211         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5703X)},
 212         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5704S)},
 213         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702A3)},
 214         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5703A3)},
 215         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5782)},
 216         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5788)},
 217         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5789)},
 218         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5901)},
 219         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5901_2)},
 220         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5704S_2)},
 221         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705F)},
 222         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5720)},
 223         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5721)},
 224         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5722)},
 225         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5750)},
 226         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751)},
 227         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5750M)},
 228         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751M)},
 229         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751F)},
 230         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5752)},
 231         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5752M)},
 232         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753)},
 233         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753M)},
 234         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753F)},
 235         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5754)},
 236         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5754M)},
 237         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5755)},
 238         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5755M)},
 239         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5756)},
 240         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5786)},
 241         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5787)},
 242         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5787M)},
 243         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5787F)},
 244         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5714)},
 245         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5714S)},
 246         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5715)},
 247         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5715S)},
 248         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5780)},
 249         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5780S)},
 250         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5781)},
 251         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5906)},
 252         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5906M)},
 253         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5784)},
 254         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5764)},
 255         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5723)},
 256         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5761)},
 257         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5761E)},
 258         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5761S)},
 259         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5761SE)},
 260         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5785_G)},
 261         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5785_F)},
 262         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57780)},
 263         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57760)},
 264         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57790)},
 265         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57788)},
 266         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5717)},
 267         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5718)},
 268         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5724)},
 269         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57781)},
 270         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57785)},
 271         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57761)},
 272         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57765)},
 273         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57791)},
 274         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57795)},
 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->tg3_flags3 & TG3_FLG3_PHY_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                 u32 funcnum, is_serdes;
1091
1092                 funcnum = tr32(TG3_CPMU_STATUS) & TG3_CPMU_STATUS_PCIE_FUNC;
1093                 if (funcnum)
1094                         tp->phy_addr = 2;
1095                 else
1096                         tp->phy_addr = 1;
1097
1098                 if (tp->pci_chip_rev_id != CHIPREV_ID_5717_A0)
1099                         is_serdes = tr32(SG_DIG_STATUS) & SG_DIG_IS_SERDES;
1100                 else
1101                         is_serdes = tr32(TG3_CPMU_PHY_STRAP) &
1102                                     TG3_CPMU_PHY_STRAP_IS_SERDES;
1103                 if (is_serdes)
1104                         tp->phy_addr += 7;
1105         } else
1106                 tp->phy_addr = TG3_PHY_MII_ADDR;
1107
1108         tg3_mdio_start(tp);
1109
1110         if (!(tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) ||
1111             (tp->tg3_flags3 & TG3_FLG3_MDIOBUS_INITED))
1112                 return 0;
1113
1114         tp->mdio_bus = mdiobus_alloc();
1115         if (tp->mdio_bus == NULL)
1116                 return -ENOMEM;
1117
1118         tp->mdio_bus->name     = "tg3 mdio bus";
1119         snprintf(tp->mdio_bus->id, MII_BUS_ID_SIZE, "%x",
1120                  (tp->pdev->bus->number << 8) | tp->pdev->devfn);
1121         tp->mdio_bus->priv     = tp;
1122         tp->mdio_bus->parent   = &tp->pdev->dev;
1123         tp->mdio_bus->read     = &tg3_mdio_read;
1124         tp->mdio_bus->write    = &tg3_mdio_write;
1125         tp->mdio_bus->reset    = &tg3_mdio_reset;
1126         tp->mdio_bus->phy_mask = ~(1 << TG3_PHY_MII_ADDR);
1127         tp->mdio_bus->irq      = &tp->mdio_irq[0];
1128
1129         for (i = 0; i < PHY_MAX_ADDR; i++)
1130                 tp->mdio_bus->irq[i] = PHY_POLL;
1131
1132         /* The bus registration will look for all the PHYs on the mdio bus.
1133          * Unfortunately, it does not ensure the PHY is powered up before
1134          * accessing the PHY ID registers.  A chip reset is the
1135          * quickest way to bring the device back to an operational state..
1136          */
1137         if (tg3_readphy(tp, MII_BMCR, &reg) || (reg & BMCR_PDOWN))
1138                 tg3_bmcr_reset(tp);
1139
1140         i = mdiobus_register(tp->mdio_bus);
1141         if (i) {
1142                 dev_warn(&tp->pdev->dev, "mdiobus_reg failed (0x%x)\n", i);
1143                 mdiobus_free(tp->mdio_bus);
1144                 return i;
1145         }
1146
1147         phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
1148
1149         if (!phydev || !phydev->drv) {
1150                 dev_warn(&tp->pdev->dev, "No PHY devices\n");
1151                 mdiobus_unregister(tp->mdio_bus);
1152                 mdiobus_free(tp->mdio_bus);
1153                 return -ENODEV;
1154         }
1155
1156         switch (phydev->drv->phy_id & phydev->drv->phy_id_mask) {
1157         case PHY_ID_BCM57780:
1158                 phydev->interface = PHY_INTERFACE_MODE_GMII;
1159                 phydev->dev_flags |= PHY_BRCM_AUTO_PWRDWN_ENABLE;
1160                 break;
1161         case PHY_ID_BCM50610:
1162         case PHY_ID_BCM50610M:
1163                 phydev->dev_flags |= PHY_BRCM_CLEAR_RGMII_MODE |
1164                                      PHY_BRCM_RX_REFCLK_UNUSED |
1165                                      PHY_BRCM_DIS_TXCRXC_NOENRGY |
1166                                      PHY_BRCM_AUTO_PWRDWN_ENABLE;
1167                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_INBAND_DISABLE)
1168                         phydev->dev_flags |= PHY_BRCM_STD_IBND_DISABLE;
1169                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_RX_EN)
1170                         phydev->dev_flags |= PHY_BRCM_EXT_IBND_RX_ENABLE;
1171                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_TX_EN)
1172                         phydev->dev_flags |= PHY_BRCM_EXT_IBND_TX_ENABLE;
1173                 /* fallthru */
1174         case PHY_ID_RTL8211C:
1175                 phydev->interface = PHY_INTERFACE_MODE_RGMII;
1176                 break;
1177         case PHY_ID_RTL8201E:
1178         case PHY_ID_BCMAC131:
1179                 phydev->interface = PHY_INTERFACE_MODE_MII;
1180                 phydev->dev_flags |= PHY_BRCM_AUTO_PWRDWN_ENABLE;
1181                 tp->tg3_flags3 |= TG3_FLG3_PHY_IS_FET;
1182                 break;
1183         }
1184
1185         tp->tg3_flags3 |= TG3_FLG3_MDIOBUS_INITED;
1186
1187         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
1188                 tg3_mdio_config_5785(tp);
1189
1190         return 0;
1191 }
1192
1193 static void tg3_mdio_fini(struct tg3 *tp)
1194 {
1195         if (tp->tg3_flags3 & TG3_FLG3_MDIOBUS_INITED) {
1196                 tp->tg3_flags3 &= ~TG3_FLG3_MDIOBUS_INITED;
1197                 mdiobus_unregister(tp->mdio_bus);
1198                 mdiobus_free(tp->mdio_bus);
1199         }
1200 }
1201
1202 /* tp->lock is held. */
1203 static inline void tg3_generate_fw_event(struct tg3 *tp)
1204 {
1205         u32 val;
1206
1207         val = tr32(GRC_RX_CPU_EVENT);
1208         val |= GRC_RX_CPU_DRIVER_EVENT;
1209         tw32_f(GRC_RX_CPU_EVENT, val);
1210
1211         tp->last_event_jiffies = jiffies;
1212 }
1213
1214 #define TG3_FW_EVENT_TIMEOUT_USEC 2500
1215
1216 /* tp->lock is held. */
1217 static void tg3_wait_for_event_ack(struct tg3 *tp)
1218 {
1219         int i;
1220         unsigned int delay_cnt;
1221         long time_remain;
1222
1223         /* If enough time has passed, no wait is necessary. */
1224         time_remain = (long)(tp->last_event_jiffies + 1 +
1225                       usecs_to_jiffies(TG3_FW_EVENT_TIMEOUT_USEC)) -
1226                       (long)jiffies;
1227         if (time_remain < 0)
1228                 return;
1229
1230         /* Check if we can shorten the wait time. */
1231         delay_cnt = jiffies_to_usecs(time_remain);
1232         if (delay_cnt > TG3_FW_EVENT_TIMEOUT_USEC)
1233                 delay_cnt = TG3_FW_EVENT_TIMEOUT_USEC;
1234         delay_cnt = (delay_cnt >> 3) + 1;
1235
1236         for (i = 0; i < delay_cnt; i++) {
1237                 if (!(tr32(GRC_RX_CPU_EVENT) & GRC_RX_CPU_DRIVER_EVENT))
1238                         break;
1239                 udelay(8);
1240         }
1241 }
1242
1243 /* tp->lock is held. */
1244 static void tg3_ump_link_report(struct tg3 *tp)
1245 {
1246         u32 reg;
1247         u32 val;
1248
1249         if (!(tp->tg3_flags2 & TG3_FLG2_5780_CLASS) ||
1250             !(tp->tg3_flags  & TG3_FLAG_ENABLE_ASF))
1251                 return;
1252
1253         tg3_wait_for_event_ack(tp);
1254
1255         tg3_write_mem(tp, NIC_SRAM_FW_CMD_MBOX, FWCMD_NICDRV_LINK_UPDATE);
1256
1257         tg3_write_mem(tp, NIC_SRAM_FW_CMD_LEN_MBOX, 14);
1258
1259         val = 0;
1260         if (!tg3_readphy(tp, MII_BMCR, &reg))
1261                 val = reg << 16;
1262         if (!tg3_readphy(tp, MII_BMSR, &reg))
1263                 val |= (reg & 0xffff);
1264         tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX, val);
1265
1266         val = 0;
1267         if (!tg3_readphy(tp, MII_ADVERTISE, &reg))
1268                 val = reg << 16;
1269         if (!tg3_readphy(tp, MII_LPA, &reg))
1270                 val |= (reg & 0xffff);
1271         tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 4, val);
1272
1273         val = 0;
1274         if (!(tp->tg3_flags2 & TG3_FLG2_MII_SERDES)) {
1275                 if (!tg3_readphy(tp, MII_CTRL1000, &reg))
1276                         val = reg << 16;
1277                 if (!tg3_readphy(tp, MII_STAT1000, &reg))
1278                         val |= (reg & 0xffff);
1279         }
1280         tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 8, val);
1281
1282         if (!tg3_readphy(tp, MII_PHYADDR, &reg))
1283                 val = reg << 16;
1284         else
1285                 val = 0;
1286         tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 12, val);
1287
1288         tg3_generate_fw_event(tp);
1289 }
1290
1291 static void tg3_link_report(struct tg3 *tp)
1292 {
1293         if (!netif_carrier_ok(tp->dev)) {
1294                 netif_info(tp, link, tp->dev, "Link is down\n");
1295                 tg3_ump_link_report(tp);
1296         } else if (netif_msg_link(tp)) {
1297                 netdev_info(tp->dev, "Link is up at %d Mbps, %s duplex\n",
1298                             (tp->link_config.active_speed == SPEED_1000 ?
1299                              1000 :
1300                              (tp->link_config.active_speed == SPEED_100 ?
1301                               100 : 10)),
1302                             (tp->link_config.active_duplex == DUPLEX_FULL ?
1303                              "full" : "half"));
1304
1305                 netdev_info(tp->dev, "Flow control is %s for TX and %s for RX\n",
1306                             (tp->link_config.active_flowctrl & FLOW_CTRL_TX) ?
1307                             "on" : "off",
1308                             (tp->link_config.active_flowctrl & FLOW_CTRL_RX) ?
1309                             "on" : "off");
1310                 tg3_ump_link_report(tp);
1311         }
1312 }
1313
1314 static u16 tg3_advert_flowctrl_1000T(u8 flow_ctrl)
1315 {
1316         u16 miireg;
1317
1318         if ((flow_ctrl & FLOW_CTRL_TX) && (flow_ctrl & FLOW_CTRL_RX))
1319                 miireg = ADVERTISE_PAUSE_CAP;
1320         else if (flow_ctrl & FLOW_CTRL_TX)
1321                 miireg = ADVERTISE_PAUSE_ASYM;
1322         else if (flow_ctrl & FLOW_CTRL_RX)
1323                 miireg = ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
1324         else
1325                 miireg = 0;
1326
1327         return miireg;
1328 }
1329
1330 static u16 tg3_advert_flowctrl_1000X(u8 flow_ctrl)
1331 {
1332         u16 miireg;
1333
1334         if ((flow_ctrl & FLOW_CTRL_TX) && (flow_ctrl & FLOW_CTRL_RX))
1335                 miireg = ADVERTISE_1000XPAUSE;
1336         else if (flow_ctrl & FLOW_CTRL_TX)
1337                 miireg = ADVERTISE_1000XPSE_ASYM;
1338         else if (flow_ctrl & FLOW_CTRL_RX)
1339                 miireg = ADVERTISE_1000XPAUSE | ADVERTISE_1000XPSE_ASYM;
1340         else
1341                 miireg = 0;
1342
1343         return miireg;
1344 }
1345
1346 static u8 tg3_resolve_flowctrl_1000X(u16 lcladv, u16 rmtadv)
1347 {
1348         u8 cap = 0;
1349
1350         if (lcladv & ADVERTISE_1000XPAUSE) {
1351                 if (lcladv & ADVERTISE_1000XPSE_ASYM) {
1352                         if (rmtadv & LPA_1000XPAUSE)
1353                                 cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
1354                         else if (rmtadv & LPA_1000XPAUSE_ASYM)
1355                                 cap = FLOW_CTRL_RX;
1356                 } else {
1357                         if (rmtadv & LPA_1000XPAUSE)
1358                                 cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
1359                 }
1360         } else if (lcladv & ADVERTISE_1000XPSE_ASYM) {
1361                 if ((rmtadv & LPA_1000XPAUSE) && (rmtadv & LPA_1000XPAUSE_ASYM))
1362                         cap = FLOW_CTRL_TX;
1363         }
1364
1365         return cap;
1366 }
1367
1368 static void tg3_setup_flow_control(struct tg3 *tp, u32 lcladv, u32 rmtadv)
1369 {
1370         u8 autoneg;
1371         u8 flowctrl = 0;
1372         u32 old_rx_mode = tp->rx_mode;
1373         u32 old_tx_mode = tp->tx_mode;
1374
1375         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB)
1376                 autoneg = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR]->autoneg;
1377         else
1378                 autoneg = tp->link_config.autoneg;
1379
1380         if (autoneg == AUTONEG_ENABLE &&
1381             (tp->tg3_flags & TG3_FLAG_PAUSE_AUTONEG)) {
1382                 if (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES)
1383                         flowctrl = tg3_resolve_flowctrl_1000X(lcladv, rmtadv);
1384                 else
1385                         flowctrl = mii_resolve_flowctrl_fdx(lcladv, rmtadv);
1386         } else
1387                 flowctrl = tp->link_config.flowctrl;
1388
1389         tp->link_config.active_flowctrl = flowctrl;
1390
1391         if (flowctrl & FLOW_CTRL_RX)
1392                 tp->rx_mode |= RX_MODE_FLOW_CTRL_ENABLE;
1393         else
1394                 tp->rx_mode &= ~RX_MODE_FLOW_CTRL_ENABLE;
1395
1396         if (old_rx_mode != tp->rx_mode)
1397                 tw32_f(MAC_RX_MODE, tp->rx_mode);
1398
1399         if (flowctrl & FLOW_CTRL_TX)
1400                 tp->tx_mode |= TX_MODE_FLOW_CTRL_ENABLE;
1401         else
1402                 tp->tx_mode &= ~TX_MODE_FLOW_CTRL_ENABLE;
1403
1404         if (old_tx_mode != tp->tx_mode)
1405                 tw32_f(MAC_TX_MODE, tp->tx_mode);
1406 }
1407
1408 static void tg3_adjust_link(struct net_device *dev)
1409 {
1410         u8 oldflowctrl, linkmesg = 0;
1411         u32 mac_mode, lcl_adv, rmt_adv;
1412         struct tg3 *tp = netdev_priv(dev);
1413         struct phy_device *phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
1414
1415         spin_lock_bh(&tp->lock);
1416
1417         mac_mode = tp->mac_mode & ~(MAC_MODE_PORT_MODE_MASK |
1418                                     MAC_MODE_HALF_DUPLEX);
1419
1420         oldflowctrl = tp->link_config.active_flowctrl;
1421
1422         if (phydev->link) {
1423                 lcl_adv = 0;
1424                 rmt_adv = 0;
1425
1426                 if (phydev->speed == SPEED_100 || phydev->speed == SPEED_10)
1427                         mac_mode |= MAC_MODE_PORT_MODE_MII;
1428                 else if (phydev->speed == SPEED_1000 ||
1429                          GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785)
1430                         mac_mode |= MAC_MODE_PORT_MODE_GMII;
1431                 else
1432                         mac_mode |= MAC_MODE_PORT_MODE_MII;
1433
1434                 if (phydev->duplex == DUPLEX_HALF)
1435                         mac_mode |= MAC_MODE_HALF_DUPLEX;
1436                 else {
1437                         lcl_adv = tg3_advert_flowctrl_1000T(
1438                                   tp->link_config.flowctrl);
1439
1440                         if (phydev->pause)
1441                                 rmt_adv = LPA_PAUSE_CAP;
1442                         if (phydev->asym_pause)
1443                                 rmt_adv |= LPA_PAUSE_ASYM;
1444                 }
1445
1446                 tg3_setup_flow_control(tp, lcl_adv, rmt_adv);
1447         } else
1448                 mac_mode |= MAC_MODE_PORT_MODE_GMII;
1449
1450         if (mac_mode != tp->mac_mode) {
1451                 tp->mac_mode = mac_mode;
1452                 tw32_f(MAC_MODE, tp->mac_mode);
1453                 udelay(40);
1454         }
1455
1456         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785) {
1457                 if (phydev->speed == SPEED_10)
1458                         tw32(MAC_MI_STAT,
1459                              MAC_MI_STAT_10MBPS_MODE |
1460                              MAC_MI_STAT_LNKSTAT_ATTN_ENAB);
1461                 else
1462                         tw32(MAC_MI_STAT, MAC_MI_STAT_LNKSTAT_ATTN_ENAB);
1463         }
1464
1465         if (phydev->speed == SPEED_1000 && phydev->duplex == DUPLEX_HALF)
1466                 tw32(MAC_TX_LENGTHS,
1467                      ((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
1468                       (6 << TX_LENGTHS_IPG_SHIFT) |
1469                       (0xff << TX_LENGTHS_SLOT_TIME_SHIFT)));
1470         else
1471                 tw32(MAC_TX_LENGTHS,
1472                      ((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
1473                       (6 << TX_LENGTHS_IPG_SHIFT) |
1474                       (32 << TX_LENGTHS_SLOT_TIME_SHIFT)));
1475
1476         if ((phydev->link && tp->link_config.active_speed == SPEED_INVALID) ||
1477             (!phydev->link && tp->link_config.active_speed != SPEED_INVALID) ||
1478             phydev->speed != tp->link_config.active_speed ||
1479             phydev->duplex != tp->link_config.active_duplex ||
1480             oldflowctrl != tp->link_config.active_flowctrl)
1481                 linkmesg = 1;
1482
1483         tp->link_config.active_speed = phydev->speed;
1484         tp->link_config.active_duplex = phydev->duplex;
1485
1486         spin_unlock_bh(&tp->lock);
1487
1488         if (linkmesg)
1489                 tg3_link_report(tp);
1490 }
1491
1492 static int tg3_phy_init(struct tg3 *tp)
1493 {
1494         struct phy_device *phydev;
1495
1496         if (tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED)
1497                 return 0;
1498
1499         /* Bring the PHY back to a known state. */
1500         tg3_bmcr_reset(tp);
1501
1502         phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
1503
1504         /* Attach the MAC to the PHY. */
1505         phydev = phy_connect(tp->dev, dev_name(&phydev->dev), tg3_adjust_link,
1506                              phydev->dev_flags, phydev->interface);
1507         if (IS_ERR(phydev)) {
1508                 dev_err(&tp->pdev->dev, "Could not attach to PHY\n");
1509                 return PTR_ERR(phydev);
1510         }
1511
1512         /* Mask with MAC supported features. */
1513         switch (phydev->interface) {
1514         case PHY_INTERFACE_MODE_GMII:
1515         case PHY_INTERFACE_MODE_RGMII:
1516                 if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY)) {
1517                         phydev->supported &= (PHY_GBIT_FEATURES |
1518                                               SUPPORTED_Pause |
1519                                               SUPPORTED_Asym_Pause);
1520                         break;
1521                 }
1522                 /* fallthru */
1523         case PHY_INTERFACE_MODE_MII:
1524                 phydev->supported &= (PHY_BASIC_FEATURES |
1525                                       SUPPORTED_Pause |
1526                                       SUPPORTED_Asym_Pause);
1527                 break;
1528         default:
1529                 phy_disconnect(tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR]);
1530                 return -EINVAL;
1531         }
1532
1533         tp->tg3_flags3 |= TG3_FLG3_PHY_CONNECTED;
1534
1535         phydev->advertising = phydev->supported;
1536
1537         return 0;
1538 }
1539
1540 static void tg3_phy_start(struct tg3 *tp)
1541 {
1542         struct phy_device *phydev;
1543
1544         if (!(tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED))
1545                 return;
1546
1547         phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
1548
1549         if (tp->link_config.phy_is_low_power) {
1550                 tp->link_config.phy_is_low_power = 0;
1551                 phydev->speed = tp->link_config.orig_speed;
1552                 phydev->duplex = tp->link_config.orig_duplex;
1553                 phydev->autoneg = tp->link_config.orig_autoneg;
1554                 phydev->advertising = tp->link_config.orig_advertising;
1555         }
1556
1557         phy_start(phydev);
1558
1559         phy_start_aneg(phydev);
1560 }
1561
1562 static void tg3_phy_stop(struct tg3 *tp)
1563 {
1564         if (!(tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED))
1565                 return;
1566
1567         phy_stop(tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR]);
1568 }
1569
1570 static void tg3_phy_fini(struct tg3 *tp)
1571 {
1572         if (tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED) {
1573                 phy_disconnect(tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR]);
1574                 tp->tg3_flags3 &= ~TG3_FLG3_PHY_CONNECTED;
1575         }
1576 }
1577
1578 static void tg3_phydsp_write(struct tg3 *tp, u32 reg, u32 val)
1579 {
1580         tg3_writephy(tp, MII_TG3_DSP_ADDRESS, reg);
1581         tg3_writephy(tp, MII_TG3_DSP_RW_PORT, val);
1582 }
1583
1584 static void tg3_phy_fet_toggle_apd(struct tg3 *tp, bool enable)
1585 {
1586         u32 phytest;
1587
1588         if (!tg3_readphy(tp, MII_TG3_FET_TEST, &phytest)) {
1589                 u32 phy;
1590
1591                 tg3_writephy(tp, MII_TG3_FET_TEST,
1592                              phytest | MII_TG3_FET_SHADOW_EN);
1593                 if (!tg3_readphy(tp, MII_TG3_FET_SHDW_AUXSTAT2, &phy)) {
1594                         if (enable)
1595                                 phy |= MII_TG3_FET_SHDW_AUXSTAT2_APD;
1596                         else
1597                                 phy &= ~MII_TG3_FET_SHDW_AUXSTAT2_APD;
1598                         tg3_writephy(tp, MII_TG3_FET_SHDW_AUXSTAT2, phy);
1599                 }
1600                 tg3_writephy(tp, MII_TG3_FET_TEST, phytest);
1601         }
1602 }
1603
1604 static void tg3_phy_toggle_apd(struct tg3 *tp, bool enable)
1605 {
1606         u32 reg;
1607
1608         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ||
1609                 (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 &&
1610              (tp->tg3_flags2 & TG3_FLG2_MII_SERDES)))
1611                 return;
1612
1613         if (tp->tg3_flags3 & TG3_FLG3_PHY_IS_FET) {
1614                 tg3_phy_fet_toggle_apd(tp, enable);
1615                 return;
1616         }
1617
1618         reg = MII_TG3_MISC_SHDW_WREN |
1619               MII_TG3_MISC_SHDW_SCR5_SEL |
1620               MII_TG3_MISC_SHDW_SCR5_LPED |
1621               MII_TG3_MISC_SHDW_SCR5_DLPTLM |
1622               MII_TG3_MISC_SHDW_SCR5_SDTL |
1623               MII_TG3_MISC_SHDW_SCR5_C125OE;
1624         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5784 || !enable)
1625                 reg |= MII_TG3_MISC_SHDW_SCR5_DLLAPD;
1626
1627         tg3_writephy(tp, MII_TG3_MISC_SHDW, reg);
1628
1629
1630         reg = MII_TG3_MISC_SHDW_WREN |
1631               MII_TG3_MISC_SHDW_APD_SEL |
1632               MII_TG3_MISC_SHDW_APD_WKTM_84MS;
1633         if (enable)
1634                 reg |= MII_TG3_MISC_SHDW_APD_ENABLE;
1635
1636         tg3_writephy(tp, MII_TG3_MISC_SHDW, reg);
1637 }
1638
1639 static void tg3_phy_toggle_automdix(struct tg3 *tp, int enable)
1640 {
1641         u32 phy;
1642
1643         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ||
1644             (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES))
1645                 return;
1646
1647         if (tp->tg3_flags3 & TG3_FLG3_PHY_IS_FET) {
1648                 u32 ephy;
1649
1650                 if (!tg3_readphy(tp, MII_TG3_FET_TEST, &ephy)) {
1651                         u32 reg = MII_TG3_FET_SHDW_MISCCTRL;
1652
1653                         tg3_writephy(tp, MII_TG3_FET_TEST,
1654                                      ephy | MII_TG3_FET_SHADOW_EN);
1655                         if (!tg3_readphy(tp, reg, &phy)) {
1656                                 if (enable)
1657                                         phy |= MII_TG3_FET_SHDW_MISCCTRL_MDIX;
1658                                 else
1659                                         phy &= ~MII_TG3_FET_SHDW_MISCCTRL_MDIX;
1660                                 tg3_writephy(tp, reg, phy);
1661                         }
1662                         tg3_writephy(tp, MII_TG3_FET_TEST, ephy);
1663                 }
1664         } else {
1665                 phy = MII_TG3_AUXCTL_MISC_RDSEL_MISC |
1666                       MII_TG3_AUXCTL_SHDWSEL_MISC;
1667                 if (!tg3_writephy(tp, MII_TG3_AUX_CTRL, phy) &&
1668                     !tg3_readphy(tp, MII_TG3_AUX_CTRL, &phy)) {
1669                         if (enable)
1670                                 phy |= MII_TG3_AUXCTL_MISC_FORCE_AMDIX;
1671                         else
1672                                 phy &= ~MII_TG3_AUXCTL_MISC_FORCE_AMDIX;
1673                         phy |= MII_TG3_AUXCTL_MISC_WREN;
1674                         tg3_writephy(tp, MII_TG3_AUX_CTRL, phy);
1675                 }
1676         }
1677 }
1678
1679 static void tg3_phy_set_wirespeed(struct tg3 *tp)
1680 {
1681         u32 val;
1682
1683         if (tp->tg3_flags2 & TG3_FLG2_NO_ETH_WIRE_SPEED)
1684                 return;
1685
1686         if (!tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x7007) &&
1687             !tg3_readphy(tp, MII_TG3_AUX_CTRL, &val))
1688                 tg3_writephy(tp, MII_TG3_AUX_CTRL,
1689                              (val | (1 << 15) | (1 << 4)));
1690 }
1691
1692 static void tg3_phy_apply_otp(struct tg3 *tp)
1693 {
1694         u32 otp, phy;
1695
1696         if (!tp->phy_otp)
1697                 return;
1698
1699         otp = tp->phy_otp;
1700
1701         /* Enable SM_DSP clock and tx 6dB coding. */
1702         phy = MII_TG3_AUXCTL_SHDWSEL_AUXCTL |
1703               MII_TG3_AUXCTL_ACTL_SMDSP_ENA |
1704               MII_TG3_AUXCTL_ACTL_TX_6DB;
1705         tg3_writephy(tp, MII_TG3_AUX_CTRL, phy);
1706
1707         phy = ((otp & TG3_OTP_AGCTGT_MASK) >> TG3_OTP_AGCTGT_SHIFT);
1708         phy |= MII_TG3_DSP_TAP1_AGCTGT_DFLT;
1709         tg3_phydsp_write(tp, MII_TG3_DSP_TAP1, phy);
1710
1711         phy = ((otp & TG3_OTP_HPFFLTR_MASK) >> TG3_OTP_HPFFLTR_SHIFT) |
1712               ((otp & TG3_OTP_HPFOVER_MASK) >> TG3_OTP_HPFOVER_SHIFT);
1713         tg3_phydsp_write(tp, MII_TG3_DSP_AADJ1CH0, phy);
1714
1715         phy = ((otp & TG3_OTP_LPFDIS_MASK) >> TG3_OTP_LPFDIS_SHIFT);
1716         phy |= MII_TG3_DSP_AADJ1CH3_ADCCKADJ;
1717         tg3_phydsp_write(tp, MII_TG3_DSP_AADJ1CH3, phy);
1718
1719         phy = ((otp & TG3_OTP_VDAC_MASK) >> TG3_OTP_VDAC_SHIFT);
1720         tg3_phydsp_write(tp, MII_TG3_DSP_EXP75, phy);
1721
1722         phy = ((otp & TG3_OTP_10BTAMP_MASK) >> TG3_OTP_10BTAMP_SHIFT);
1723         tg3_phydsp_write(tp, MII_TG3_DSP_EXP96, phy);
1724
1725         phy = ((otp & TG3_OTP_ROFF_MASK) >> TG3_OTP_ROFF_SHIFT) |
1726               ((otp & TG3_OTP_RCOFF_MASK) >> TG3_OTP_RCOFF_SHIFT);
1727         tg3_phydsp_write(tp, MII_TG3_DSP_EXP97, phy);
1728
1729         /* Turn off SM_DSP clock. */
1730         phy = MII_TG3_AUXCTL_SHDWSEL_AUXCTL |
1731               MII_TG3_AUXCTL_ACTL_TX_6DB;
1732         tg3_writephy(tp, MII_TG3_AUX_CTRL, phy);
1733 }
1734
1735 static int tg3_wait_macro_done(struct tg3 *tp)
1736 {
1737         int limit = 100;
1738
1739         while (limit--) {
1740                 u32 tmp32;
1741
1742                 if (!tg3_readphy(tp, 0x16, &tmp32)) {
1743                         if ((tmp32 & 0x1000) == 0)
1744                                 break;
1745                 }
1746         }
1747         if (limit < 0)
1748                 return -EBUSY;
1749
1750         return 0;
1751 }
1752
1753 static int tg3_phy_write_and_check_testpat(struct tg3 *tp, int *resetp)
1754 {
1755         static const u32 test_pat[4][6] = {
1756         { 0x00005555, 0x00000005, 0x00002aaa, 0x0000000a, 0x00003456, 0x00000003 },
1757         { 0x00002aaa, 0x0000000a, 0x00003333, 0x00000003, 0x0000789a, 0x00000005 },
1758         { 0x00005a5a, 0x00000005, 0x00002a6a, 0x0000000a, 0x00001bcd, 0x00000003 },
1759         { 0x00002a5a, 0x0000000a, 0x000033c3, 0x00000003, 0x00002ef1, 0x00000005 }
1760         };
1761         int chan;
1762
1763         for (chan = 0; chan < 4; chan++) {
1764                 int i;
1765
1766                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
1767                              (chan * 0x2000) | 0x0200);
1768                 tg3_writephy(tp, 0x16, 0x0002);
1769
1770                 for (i = 0; i < 6; i++)
1771                         tg3_writephy(tp, MII_TG3_DSP_RW_PORT,
1772                                      test_pat[chan][i]);
1773
1774                 tg3_writephy(tp, 0x16, 0x0202);
1775                 if (tg3_wait_macro_done(tp)) {
1776                         *resetp = 1;
1777                         return -EBUSY;
1778                 }
1779
1780                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
1781                              (chan * 0x2000) | 0x0200);
1782                 tg3_writephy(tp, 0x16, 0x0082);
1783                 if (tg3_wait_macro_done(tp)) {
1784                         *resetp = 1;
1785                         return -EBUSY;
1786                 }
1787
1788                 tg3_writephy(tp, 0x16, 0x0802);
1789                 if (tg3_wait_macro_done(tp)) {
1790                         *resetp = 1;
1791                         return -EBUSY;
1792                 }
1793
1794                 for (i = 0; i < 6; i += 2) {
1795                         u32 low, high;
1796
1797                         if (tg3_readphy(tp, MII_TG3_DSP_RW_PORT, &low) ||
1798                             tg3_readphy(tp, MII_TG3_DSP_RW_PORT, &high) ||
1799                             tg3_wait_macro_done(tp)) {
1800                                 *resetp = 1;
1801                                 return -EBUSY;
1802                         }
1803                         low &= 0x7fff;
1804                         high &= 0x000f;
1805                         if (low != test_pat[chan][i] ||
1806                             high != test_pat[chan][i+1]) {
1807                                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000b);
1808                                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x4001);
1809                                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x4005);
1810
1811                                 return -EBUSY;
1812                         }
1813                 }
1814         }
1815
1816         return 0;
1817 }
1818
1819 static int tg3_phy_reset_chanpat(struct tg3 *tp)
1820 {
1821         int chan;
1822
1823         for (chan = 0; chan < 4; chan++) {
1824                 int i;
1825
1826                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
1827                              (chan * 0x2000) | 0x0200);
1828                 tg3_writephy(tp, 0x16, 0x0002);
1829                 for (i = 0; i < 6; i++)
1830                         tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x000);
1831                 tg3_writephy(tp, 0x16, 0x0202);
1832                 if (tg3_wait_macro_done(tp))
1833                         return -EBUSY;
1834         }
1835
1836         return 0;
1837 }
1838
1839 static int tg3_phy_reset_5703_4_5(struct tg3 *tp)
1840 {
1841         u32 reg32, phy9_orig;
1842         int retries, do_phy_reset, err;
1843
1844         retries = 10;
1845         do_phy_reset = 1;
1846         do {
1847                 if (do_phy_reset) {
1848                         err = tg3_bmcr_reset(tp);
1849                         if (err)
1850                                 return err;
1851                         do_phy_reset = 0;
1852                 }
1853
1854                 /* Disable transmitter and interrupt.  */
1855                 if (tg3_readphy(tp, MII_TG3_EXT_CTRL, &reg32))
1856                         continue;
1857
1858                 reg32 |= 0x3000;
1859                 tg3_writephy(tp, MII_TG3_EXT_CTRL, reg32);
1860
1861                 /* Set full-duplex, 1000 mbps.  */
1862                 tg3_writephy(tp, MII_BMCR,
1863                              BMCR_FULLDPLX | TG3_BMCR_SPEED1000);
1864
1865                 /* Set to master mode.  */
1866                 if (tg3_readphy(tp, MII_TG3_CTRL, &phy9_orig))
1867                         continue;
1868
1869                 tg3_writephy(tp, MII_TG3_CTRL,
1870                              (MII_TG3_CTRL_AS_MASTER |
1871                               MII_TG3_CTRL_ENABLE_AS_MASTER));
1872
1873                 /* Enable SM_DSP_CLOCK and 6dB.  */
1874                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
1875
1876                 /* Block the PHY control access.  */
1877                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8005);
1878                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x0800);
1879
1880                 err = tg3_phy_write_and_check_testpat(tp, &do_phy_reset);
1881                 if (!err)
1882                         break;
1883         } while (--retries);
1884
1885         err = tg3_phy_reset_chanpat(tp);
1886         if (err)
1887                 return err;
1888
1889         tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8005);
1890         tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x0000);
1891
1892         tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8200);
1893         tg3_writephy(tp, 0x16, 0x0000);
1894
1895         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
1896             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
1897                 /* Set Extended packet length bit for jumbo frames */
1898                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4400);
1899         } else {
1900                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
1901         }
1902
1903         tg3_writephy(tp, MII_TG3_CTRL, phy9_orig);
1904
1905         if (!tg3_readphy(tp, MII_TG3_EXT_CTRL, &reg32)) {
1906                 reg32 &= ~0x3000;
1907                 tg3_writephy(tp, MII_TG3_EXT_CTRL, reg32);
1908         } else if (!err)
1909                 err = -EBUSY;
1910
1911         return err;
1912 }
1913
1914 /* This will reset the tigon3 PHY if there is no valid
1915  * link unless the FORCE argument is non-zero.
1916  */
1917 static int tg3_phy_reset(struct tg3 *tp)
1918 {
1919         u32 cpmuctrl;
1920         u32 phy_status;
1921         int err;
1922
1923         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
1924                 u32 val;
1925
1926                 val = tr32(GRC_MISC_CFG);
1927                 tw32_f(GRC_MISC_CFG, val & ~GRC_MISC_CFG_EPHY_IDDQ);
1928                 udelay(40);
1929         }
1930         err  = tg3_readphy(tp, MII_BMSR, &phy_status);
1931         err |= tg3_readphy(tp, MII_BMSR, &phy_status);
1932         if (err != 0)
1933                 return -EBUSY;
1934
1935         if (netif_running(tp->dev) && netif_carrier_ok(tp->dev)) {
1936                 netif_carrier_off(tp->dev);
1937                 tg3_link_report(tp);
1938         }
1939
1940         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
1941             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
1942             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
1943                 err = tg3_phy_reset_5703_4_5(tp);
1944                 if (err)
1945                         return err;
1946                 goto out;
1947         }
1948
1949         cpmuctrl = 0;
1950         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
1951             GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) {
1952                 cpmuctrl = tr32(TG3_CPMU_CTRL);
1953                 if (cpmuctrl & CPMU_CTRL_GPHY_10MB_RXONLY)
1954                         tw32(TG3_CPMU_CTRL,
1955                              cpmuctrl & ~CPMU_CTRL_GPHY_10MB_RXONLY);
1956         }
1957
1958         err = tg3_bmcr_reset(tp);
1959         if (err)
1960                 return err;
1961
1962         if (cpmuctrl & CPMU_CTRL_GPHY_10MB_RXONLY) {
1963                 u32 phy;
1964
1965                 phy = MII_TG3_DSP_EXP8_AEDW | MII_TG3_DSP_EXP8_REJ2MHz;
1966                 tg3_phydsp_write(tp, MII_TG3_DSP_EXP8, phy);
1967
1968                 tw32(TG3_CPMU_CTRL, cpmuctrl);
1969         }
1970
1971         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX ||
1972             GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5761_AX) {
1973                 u32 val;
1974
1975                 val = tr32(TG3_CPMU_LSPD_1000MB_CLK);
1976                 if ((val & CPMU_LSPD_1000MB_MACCLK_MASK) ==
1977                     CPMU_LSPD_1000MB_MACCLK_12_5) {
1978                         val &= ~CPMU_LSPD_1000MB_MACCLK_MASK;
1979                         udelay(40);
1980                         tw32_f(TG3_CPMU_LSPD_1000MB_CLK, val);
1981                 }
1982         }
1983
1984         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 &&
1985             (tp->tg3_flags2 & TG3_FLG2_MII_SERDES))
1986                 return 0;
1987
1988         tg3_phy_apply_otp(tp);
1989
1990         if (tp->tg3_flags3 & TG3_FLG3_PHY_ENABLE_APD)
1991                 tg3_phy_toggle_apd(tp, true);
1992         else
1993                 tg3_phy_toggle_apd(tp, false);
1994
1995 out:
1996         if (tp->tg3_flags2 & TG3_FLG2_PHY_ADC_BUG) {
1997                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
1998                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x201f);
1999                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x2aaa);
2000                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000a);
2001                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x0323);
2002                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
2003         }
2004         if (tp->tg3_flags2 & TG3_FLG2_PHY_5704_A0_BUG) {
2005                 tg3_writephy(tp, 0x1c, 0x8d68);
2006                 tg3_writephy(tp, 0x1c, 0x8d68);
2007         }
2008         if (tp->tg3_flags2 & TG3_FLG2_PHY_BER_BUG) {
2009                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
2010                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000a);
2011                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x310b);
2012                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x201f);
2013                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x9506);
2014                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x401f);
2015                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x14e2);
2016                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
2017         } else if (tp->tg3_flags2 & TG3_FLG2_PHY_JITTER_BUG) {
2018                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
2019                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000a);
2020                 if (tp->tg3_flags2 & TG3_FLG2_PHY_ADJUST_TRIM) {
2021                         tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x110b);
2022                         tg3_writephy(tp, MII_TG3_TEST1,
2023                                      MII_TG3_TEST1_TRIM_EN | 0x4);
2024                 } else
2025                         tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x010b);
2026                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
2027         }
2028         /* Set Extended packet length bit (bit 14) on all chips that */
2029         /* support jumbo frames */
2030         if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5401) {
2031                 /* Cannot do read-modify-write on 5401 */
2032                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4c20);
2033         } else if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) {
2034                 u32 phy_reg;
2035
2036                 /* Set bit 14 with read-modify-write to preserve other bits */
2037                 if (!tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0007) &&
2038                     !tg3_readphy(tp, MII_TG3_AUX_CTRL, &phy_reg))
2039                         tg3_writephy(tp, MII_TG3_AUX_CTRL, phy_reg | 0x4000);
2040         }
2041
2042         /* Set phy register 0x10 bit 0 to high fifo elasticity to support
2043          * jumbo frames transmission.
2044          */
2045         if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) {
2046                 u32 phy_reg;
2047
2048                 if (!tg3_readphy(tp, MII_TG3_EXT_CTRL, &phy_reg))
2049                         tg3_writephy(tp, MII_TG3_EXT_CTRL,
2050                                      phy_reg | MII_TG3_EXT_CTRL_FIFO_ELASTIC);
2051         }
2052
2053         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
2054                 /* adjust output voltage */
2055                 tg3_writephy(tp, MII_TG3_FET_PTEST, 0x12);
2056         }
2057
2058         tg3_phy_toggle_automdix(tp, 1);
2059         tg3_phy_set_wirespeed(tp);
2060         return 0;
2061 }
2062
2063 static void tg3_frob_aux_power(struct tg3 *tp)
2064 {
2065         struct tg3 *tp_peer = tp;
2066
2067         /* The GPIOs do something completely different on 57765. */
2068         if ((tp->tg3_flags2 & TG3_FLG2_IS_NIC) == 0 ||
2069             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
2070                 return;
2071
2072         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
2073             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714 ||
2074             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717) {
2075                 struct net_device *dev_peer;
2076
2077                 dev_peer = pci_get_drvdata(tp->pdev_peer);
2078                 /* remove_one() may have been run on the peer. */
2079                 if (!dev_peer)
2080                         tp_peer = tp;
2081                 else
2082                         tp_peer = netdev_priv(dev_peer);
2083         }
2084
2085         if ((tp->tg3_flags & TG3_FLAG_WOL_ENABLE) != 0 ||
2086             (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) != 0 ||
2087             (tp_peer->tg3_flags & TG3_FLAG_WOL_ENABLE) != 0 ||
2088             (tp_peer->tg3_flags & TG3_FLAG_ENABLE_ASF) != 0) {
2089                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
2090                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
2091                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2092                                     (GRC_LCLCTRL_GPIO_OE0 |
2093                                      GRC_LCLCTRL_GPIO_OE1 |
2094                                      GRC_LCLCTRL_GPIO_OE2 |
2095                                      GRC_LCLCTRL_GPIO_OUTPUT0 |
2096                                      GRC_LCLCTRL_GPIO_OUTPUT1),
2097                                     100);
2098                 } else if (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5761 ||
2099                            tp->pdev->device == TG3PCI_DEVICE_TIGON3_5761S) {
2100                         /* The 5761 non-e device swaps GPIO 0 and GPIO 2. */
2101                         u32 grc_local_ctrl = GRC_LCLCTRL_GPIO_OE0 |
2102                                              GRC_LCLCTRL_GPIO_OE1 |
2103                                              GRC_LCLCTRL_GPIO_OE2 |
2104                                              GRC_LCLCTRL_GPIO_OUTPUT0 |
2105                                              GRC_LCLCTRL_GPIO_OUTPUT1 |
2106                                              tp->grc_local_ctrl;
2107                         tw32_wait_f(GRC_LOCAL_CTRL, grc_local_ctrl, 100);
2108
2109                         grc_local_ctrl |= GRC_LCLCTRL_GPIO_OUTPUT2;
2110                         tw32_wait_f(GRC_LOCAL_CTRL, grc_local_ctrl, 100);
2111
2112                         grc_local_ctrl &= ~GRC_LCLCTRL_GPIO_OUTPUT0;
2113                         tw32_wait_f(GRC_LOCAL_CTRL, grc_local_ctrl, 100);
2114                 } else {
2115                         u32 no_gpio2;
2116                         u32 grc_local_ctrl = 0;
2117
2118                         if (tp_peer != tp &&
2119                             (tp_peer->tg3_flags & TG3_FLAG_INIT_COMPLETE) != 0)
2120                                 return;
2121
2122                         /* Workaround to prevent overdrawing Amps. */
2123                         if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
2124                             ASIC_REV_5714) {
2125                                 grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE3;
2126                                 tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2127                                             grc_local_ctrl, 100);
2128                         }
2129
2130                         /* On 5753 and variants, GPIO2 cannot be used. */
2131                         no_gpio2 = tp->nic_sram_data_cfg &
2132                                     NIC_SRAM_DATA_CFG_NO_GPIO2;
2133
2134                         grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE0 |
2135                                          GRC_LCLCTRL_GPIO_OE1 |
2136                                          GRC_LCLCTRL_GPIO_OE2 |
2137                                          GRC_LCLCTRL_GPIO_OUTPUT1 |
2138                                          GRC_LCLCTRL_GPIO_OUTPUT2;
2139                         if (no_gpio2) {
2140                                 grc_local_ctrl &= ~(GRC_LCLCTRL_GPIO_OE2 |
2141                                                     GRC_LCLCTRL_GPIO_OUTPUT2);
2142                         }
2143                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2144                                                     grc_local_ctrl, 100);
2145
2146                         grc_local_ctrl |= GRC_LCLCTRL_GPIO_OUTPUT0;
2147
2148                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2149                                                     grc_local_ctrl, 100);
2150
2151                         if (!no_gpio2) {
2152                                 grc_local_ctrl &= ~GRC_LCLCTRL_GPIO_OUTPUT2;
2153                                 tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2154                                             grc_local_ctrl, 100);
2155                         }
2156                 }
2157         } else {
2158                 if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
2159                     GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701) {
2160                         if (tp_peer != tp &&
2161                             (tp_peer->tg3_flags & TG3_FLAG_INIT_COMPLETE) != 0)
2162                                 return;
2163
2164                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2165                                     (GRC_LCLCTRL_GPIO_OE1 |
2166                                      GRC_LCLCTRL_GPIO_OUTPUT1), 100);
2167
2168                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2169                                     GRC_LCLCTRL_GPIO_OE1, 100);
2170
2171                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2172                                     (GRC_LCLCTRL_GPIO_OE1 |
2173                                      GRC_LCLCTRL_GPIO_OUTPUT1), 100);
2174                 }
2175         }
2176 }
2177
2178 static int tg3_5700_link_polarity(struct tg3 *tp, u32 speed)
2179 {
2180         if (tp->led_ctrl == LED_CTRL_MODE_PHY_2)
2181                 return 1;
2182         else if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5411) {
2183                 if (speed != SPEED_10)
2184                         return 1;
2185         } else if (speed == SPEED_10)
2186                 return 1;
2187
2188         return 0;
2189 }
2190
2191 static int tg3_setup_phy(struct tg3 *, int);
2192
2193 #define RESET_KIND_SHUTDOWN     0
2194 #define RESET_KIND_INIT         1
2195 #define RESET_KIND_SUSPEND      2
2196
2197 static void tg3_write_sig_post_reset(struct tg3 *, int);
2198 static int tg3_halt_cpu(struct tg3 *, u32);
2199
2200 static void tg3_power_down_phy(struct tg3 *tp, bool do_low_power)
2201 {
2202         u32 val;
2203
2204         if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) {
2205                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
2206                         u32 sg_dig_ctrl = tr32(SG_DIG_CTRL);
2207                         u32 serdes_cfg = tr32(MAC_SERDES_CFG);
2208
2209                         sg_dig_ctrl |=
2210                                 SG_DIG_USING_HW_AUTONEG | SG_DIG_SOFT_RESET;
2211                         tw32(SG_DIG_CTRL, sg_dig_ctrl);
2212                         tw32(MAC_SERDES_CFG, serdes_cfg | (1 << 15));
2213                 }
2214                 return;
2215         }
2216
2217         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
2218                 tg3_bmcr_reset(tp);
2219                 val = tr32(GRC_MISC_CFG);
2220                 tw32_f(GRC_MISC_CFG, val | GRC_MISC_CFG_EPHY_IDDQ);
2221                 udelay(40);
2222                 return;
2223         } else if (tp->tg3_flags3 & TG3_FLG3_PHY_IS_FET) {
2224                 u32 phytest;
2225                 if (!tg3_readphy(tp, MII_TG3_FET_TEST, &phytest)) {
2226                         u32 phy;
2227
2228                         tg3_writephy(tp, MII_ADVERTISE, 0);
2229                         tg3_writephy(tp, MII_BMCR,
2230                                      BMCR_ANENABLE | BMCR_ANRESTART);
2231
2232                         tg3_writephy(tp, MII_TG3_FET_TEST,
2233                                      phytest | MII_TG3_FET_SHADOW_EN);
2234                         if (!tg3_readphy(tp, MII_TG3_FET_SHDW_AUXMODE4, &phy)) {
2235                                 phy |= MII_TG3_FET_SHDW_AUXMODE4_SBPD;
2236                                 tg3_writephy(tp,
2237                                              MII_TG3_FET_SHDW_AUXMODE4,
2238                                              phy);
2239                         }
2240                         tg3_writephy(tp, MII_TG3_FET_TEST, phytest);
2241                 }
2242                 return;
2243         } else if (do_low_power) {
2244                 tg3_writephy(tp, MII_TG3_EXT_CTRL,
2245                              MII_TG3_EXT_CTRL_FORCE_LED_OFF);
2246
2247                 tg3_writephy(tp, MII_TG3_AUX_CTRL,
2248                              MII_TG3_AUXCTL_SHDWSEL_PWRCTL |
2249                              MII_TG3_AUXCTL_PCTL_100TX_LPWR |
2250                              MII_TG3_AUXCTL_PCTL_SPR_ISOLATE |
2251                              MII_TG3_AUXCTL_PCTL_VREG_11V);
2252         }
2253
2254         /* The PHY should not be powered down on some chips because
2255          * of bugs.
2256          */
2257         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
2258             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
2259             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780 &&
2260              (tp->tg3_flags2 & TG3_FLG2_MII_SERDES)))
2261                 return;
2262
2263         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX ||
2264             GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5761_AX) {
2265                 val = tr32(TG3_CPMU_LSPD_1000MB_CLK);
2266                 val &= ~CPMU_LSPD_1000MB_MACCLK_MASK;
2267                 val |= CPMU_LSPD_1000MB_MACCLK_12_5;
2268                 tw32_f(TG3_CPMU_LSPD_1000MB_CLK, val);
2269         }
2270
2271         tg3_writephy(tp, MII_BMCR, BMCR_PDOWN);
2272 }
2273
2274 /* tp->lock is held. */
2275 static int tg3_nvram_lock(struct tg3 *tp)
2276 {
2277         if (tp->tg3_flags & TG3_FLAG_NVRAM) {
2278                 int i;
2279
2280                 if (tp->nvram_lock_cnt == 0) {
2281                         tw32(NVRAM_SWARB, SWARB_REQ_SET1);
2282                         for (i = 0; i < 8000; i++) {
2283                                 if (tr32(NVRAM_SWARB) & SWARB_GNT1)
2284                                         break;
2285                                 udelay(20);
2286                         }
2287                         if (i == 8000) {
2288                                 tw32(NVRAM_SWARB, SWARB_REQ_CLR1);
2289                                 return -ENODEV;
2290                         }
2291                 }
2292                 tp->nvram_lock_cnt++;
2293         }
2294         return 0;
2295 }
2296
2297 /* tp->lock is held. */
2298 static void tg3_nvram_unlock(struct tg3 *tp)
2299 {
2300         if (tp->tg3_flags & TG3_FLAG_NVRAM) {
2301                 if (tp->nvram_lock_cnt > 0)
2302                         tp->nvram_lock_cnt--;
2303                 if (tp->nvram_lock_cnt == 0)
2304                         tw32_f(NVRAM_SWARB, SWARB_REQ_CLR1);
2305         }
2306 }
2307
2308 /* tp->lock is held. */
2309 static void tg3_enable_nvram_access(struct tg3 *tp)
2310 {
2311         if ((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
2312             !(tp->tg3_flags3 & TG3_FLG3_PROTECTED_NVRAM)) {
2313                 u32 nvaccess = tr32(NVRAM_ACCESS);
2314
2315                 tw32(NVRAM_ACCESS, nvaccess | ACCESS_ENABLE);
2316         }
2317 }
2318
2319 /* tp->lock is held. */
2320 static void tg3_disable_nvram_access(struct tg3 *tp)
2321 {
2322         if ((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
2323             !(tp->tg3_flags3 & TG3_FLG3_PROTECTED_NVRAM)) {
2324                 u32 nvaccess = tr32(NVRAM_ACCESS);
2325
2326                 tw32(NVRAM_ACCESS, nvaccess & ~ACCESS_ENABLE);
2327         }
2328 }
2329
2330 static int tg3_nvram_read_using_eeprom(struct tg3 *tp,
2331                                         u32 offset, u32 *val)
2332 {
2333         u32 tmp;
2334         int i;
2335
2336         if (offset > EEPROM_ADDR_ADDR_MASK || (offset % 4) != 0)
2337                 return -EINVAL;
2338
2339         tmp = tr32(GRC_EEPROM_ADDR) & ~(EEPROM_ADDR_ADDR_MASK |
2340                                         EEPROM_ADDR_DEVID_MASK |
2341                                         EEPROM_ADDR_READ);
2342         tw32(GRC_EEPROM_ADDR,
2343              tmp |
2344              (0 << EEPROM_ADDR_DEVID_SHIFT) |
2345              ((offset << EEPROM_ADDR_ADDR_SHIFT) &
2346               EEPROM_ADDR_ADDR_MASK) |
2347              EEPROM_ADDR_READ | EEPROM_ADDR_START);
2348
2349         for (i = 0; i < 1000; i++) {
2350                 tmp = tr32(GRC_EEPROM_ADDR);
2351
2352                 if (tmp & EEPROM_ADDR_COMPLETE)
2353                         break;
2354                 msleep(1);
2355         }
2356         if (!(tmp & EEPROM_ADDR_COMPLETE))
2357                 return -EBUSY;
2358
2359         tmp = tr32(GRC_EEPROM_DATA);
2360
2361         /*
2362          * The data will always be opposite the native endian
2363          * format.  Perform a blind byteswap to compensate.
2364          */
2365         *val = swab32(tmp);
2366
2367         return 0;
2368 }
2369
2370 #define NVRAM_CMD_TIMEOUT 10000
2371
2372 static int tg3_nvram_exec_cmd(struct tg3 *tp, u32 nvram_cmd)
2373 {
2374         int i;
2375
2376         tw32(NVRAM_CMD, nvram_cmd);
2377         for (i = 0; i < NVRAM_CMD_TIMEOUT; i++) {
2378                 udelay(10);
2379                 if (tr32(NVRAM_CMD) & NVRAM_CMD_DONE) {
2380                         udelay(10);
2381                         break;
2382                 }
2383         }
2384
2385         if (i == NVRAM_CMD_TIMEOUT)
2386                 return -EBUSY;
2387
2388         return 0;
2389 }
2390
2391 static u32 tg3_nvram_phys_addr(struct tg3 *tp, u32 addr)
2392 {
2393         if ((tp->tg3_flags & TG3_FLAG_NVRAM) &&
2394             (tp->tg3_flags & TG3_FLAG_NVRAM_BUFFERED) &&
2395             (tp->tg3_flags2 & TG3_FLG2_FLASH) &&
2396            !(tp->tg3_flags3 & TG3_FLG3_NO_NVRAM_ADDR_TRANS) &&
2397             (tp->nvram_jedecnum == JEDEC_ATMEL))
2398
2399                 addr = ((addr / tp->nvram_pagesize) <<
2400                         ATMEL_AT45DB0X1B_PAGE_POS) +
2401                        (addr % tp->nvram_pagesize);
2402
2403         return addr;
2404 }
2405
2406 static u32 tg3_nvram_logical_addr(struct tg3 *tp, u32 addr)
2407 {
2408         if ((tp->tg3_flags & TG3_FLAG_NVRAM) &&
2409             (tp->tg3_flags & TG3_FLAG_NVRAM_BUFFERED) &&
2410             (tp->tg3_flags2 & TG3_FLG2_FLASH) &&
2411            !(tp->tg3_flags3 & TG3_FLG3_NO_NVRAM_ADDR_TRANS) &&
2412             (tp->nvram_jedecnum == JEDEC_ATMEL))
2413
2414                 addr = ((addr >> ATMEL_AT45DB0X1B_PAGE_POS) *
2415                         tp->nvram_pagesize) +
2416                        (addr & ((1 << ATMEL_AT45DB0X1B_PAGE_POS) - 1));
2417
2418         return addr;
2419 }
2420
2421 /* NOTE: Data read in from NVRAM is byteswapped according to
2422  * the byteswapping settings for all other register accesses.
2423  * tg3 devices are BE devices, so on a BE machine, the data
2424  * returned will be exactly as it is seen in NVRAM.  On a LE
2425  * machine, the 32-bit value will be byteswapped.
2426  */
2427 static int tg3_nvram_read(struct tg3 *tp, u32 offset, u32 *val)
2428 {
2429         int ret;
2430
2431         if (!(tp->tg3_flags & TG3_FLAG_NVRAM))
2432                 return tg3_nvram_read_using_eeprom(tp, offset, val);
2433
2434         offset = tg3_nvram_phys_addr(tp, offset);
2435
2436         if (offset > NVRAM_ADDR_MSK)
2437                 return -EINVAL;
2438
2439         ret = tg3_nvram_lock(tp);
2440         if (ret)
2441                 return ret;
2442
2443         tg3_enable_nvram_access(tp);
2444
2445         tw32(NVRAM_ADDR, offset);
2446         ret = tg3_nvram_exec_cmd(tp, NVRAM_CMD_RD | NVRAM_CMD_GO |
2447                 NVRAM_CMD_FIRST | NVRAM_CMD_LAST | NVRAM_CMD_DONE);
2448
2449         if (ret == 0)
2450                 *val = tr32(NVRAM_RDDATA);
2451
2452         tg3_disable_nvram_access(tp);
2453
2454         tg3_nvram_unlock(tp);
2455
2456         return ret;
2457 }
2458
2459 /* Ensures NVRAM data is in bytestream format. */
2460 static int tg3_nvram_read_be32(struct tg3 *tp, u32 offset, __be32 *val)
2461 {
2462         u32 v;
2463         int res = tg3_nvram_read(tp, offset, &v);
2464         if (!res)
2465                 *val = cpu_to_be32(v);
2466         return res;
2467 }
2468
2469 /* tp->lock is held. */
2470 static void __tg3_set_mac_addr(struct tg3 *tp, int skip_mac_1)
2471 {
2472         u32 addr_high, addr_low;
2473         int i;
2474
2475         addr_high = ((tp->dev->dev_addr[0] << 8) |
2476                      tp->dev->dev_addr[1]);
2477         addr_low = ((tp->dev->dev_addr[2] << 24) |
2478                     (tp->dev->dev_addr[3] << 16) |
2479                     (tp->dev->dev_addr[4] <<  8) |
2480                     (tp->dev->dev_addr[5] <<  0));
2481         for (i = 0; i < 4; i++) {
2482                 if (i == 1 && skip_mac_1)
2483                         continue;
2484                 tw32(MAC_ADDR_0_HIGH + (i * 8), addr_high);
2485                 tw32(MAC_ADDR_0_LOW + (i * 8), addr_low);
2486         }
2487
2488         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
2489             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
2490                 for (i = 0; i < 12; i++) {
2491                         tw32(MAC_EXTADDR_0_HIGH + (i * 8), addr_high);
2492                         tw32(MAC_EXTADDR_0_LOW + (i * 8), addr_low);
2493                 }
2494         }
2495
2496         addr_high = (tp->dev->dev_addr[0] +
2497                      tp->dev->dev_addr[1] +
2498                      tp->dev->dev_addr[2] +
2499                      tp->dev->dev_addr[3] +
2500                      tp->dev->dev_addr[4] +
2501                      tp->dev->dev_addr[5]) &
2502                 TX_BACKOFF_SEED_MASK;
2503         tw32(MAC_TX_BACKOFF_SEED, addr_high);
2504 }
2505
2506 static int tg3_set_power_state(struct tg3 *tp, pci_power_t state)
2507 {
2508         u32 misc_host_ctrl;
2509         bool device_should_wake, do_low_power;
2510
2511         /* Make sure register accesses (indirect or otherwise)
2512          * will function correctly.
2513          */
2514         pci_write_config_dword(tp->pdev,
2515                                TG3PCI_MISC_HOST_CTRL,
2516                                tp->misc_host_ctrl);
2517
2518         switch (state) {
2519         case PCI_D0:
2520                 pci_enable_wake(tp->pdev, state, false);
2521                 pci_set_power_state(tp->pdev, PCI_D0);
2522
2523                 /* Switch out of Vaux if it is a NIC */
2524                 if (tp->tg3_flags2 & TG3_FLG2_IS_NIC)
2525                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl, 100);
2526
2527                 return 0;
2528
2529         case PCI_D1:
2530         case PCI_D2:
2531         case PCI_D3hot:
2532                 break;
2533
2534         default:
2535                 netdev_err(tp->dev, "Invalid power state (D%d) requested\n",
2536                            state);
2537                 return -EINVAL;
2538         }
2539
2540         /* Restore the CLKREQ setting. */
2541         if (tp->tg3_flags3 & TG3_FLG3_CLKREQ_BUG) {
2542                 u16 lnkctl;
2543
2544                 pci_read_config_word(tp->pdev,
2545                                      tp->pcie_cap + PCI_EXP_LNKCTL,
2546                                      &lnkctl);
2547                 lnkctl |= PCI_EXP_LNKCTL_CLKREQ_EN;
2548                 pci_write_config_word(tp->pdev,
2549                                       tp->pcie_cap + PCI_EXP_LNKCTL,
2550                                       lnkctl);
2551         }
2552
2553         misc_host_ctrl = tr32(TG3PCI_MISC_HOST_CTRL);
2554         tw32(TG3PCI_MISC_HOST_CTRL,
2555              misc_host_ctrl | MISC_HOST_CTRL_MASK_PCI_INT);
2556
2557         device_should_wake = pci_pme_capable(tp->pdev, state) &&
2558                              device_may_wakeup(&tp->pdev->dev) &&
2559                              (tp->tg3_flags & TG3_FLAG_WOL_ENABLE);
2560
2561         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
2562                 do_low_power = false;
2563                 if ((tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED) &&
2564                     !tp->link_config.phy_is_low_power) {
2565                         struct phy_device *phydev;
2566                         u32 phyid, advertising;
2567
2568                         phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
2569
2570                         tp->link_config.phy_is_low_power = 1;
2571
2572                         tp->link_config.orig_speed = phydev->speed;
2573                         tp->link_config.orig_duplex = phydev->duplex;
2574                         tp->link_config.orig_autoneg = phydev->autoneg;
2575                         tp->link_config.orig_advertising = phydev->advertising;
2576
2577                         advertising = ADVERTISED_TP |
2578                                       ADVERTISED_Pause |
2579                                       ADVERTISED_Autoneg |
2580                                       ADVERTISED_10baseT_Half;
2581
2582                         if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) ||
2583                             device_should_wake) {
2584                                 if (tp->tg3_flags & TG3_FLAG_WOL_SPEED_100MB)
2585                                         advertising |=
2586                                                 ADVERTISED_100baseT_Half |
2587                                                 ADVERTISED_100baseT_Full |
2588                                                 ADVERTISED_10baseT_Full;
2589                                 else
2590                                         advertising |= ADVERTISED_10baseT_Full;
2591                         }
2592
2593                         phydev->advertising = advertising;
2594
2595                         phy_start_aneg(phydev);
2596
2597                         phyid = phydev->drv->phy_id & phydev->drv->phy_id_mask;
2598                         if (phyid != PHY_ID_BCMAC131) {
2599                                 phyid &= PHY_BCM_OUI_MASK;
2600                                 if (phyid == PHY_BCM_OUI_1 ||
2601                                     phyid == PHY_BCM_OUI_2 ||
2602                                     phyid == PHY_BCM_OUI_3)
2603                                         do_low_power = true;
2604                         }
2605                 }
2606         } else {
2607                 do_low_power = true;
2608
2609                 if (tp->link_config.phy_is_low_power == 0) {
2610                         tp->link_config.phy_is_low_power = 1;
2611                         tp->link_config.orig_speed = tp->link_config.speed;
2612                         tp->link_config.orig_duplex = tp->link_config.duplex;
2613                         tp->link_config.orig_autoneg = tp->link_config.autoneg;
2614                 }
2615
2616                 if (!(tp->tg3_flags2 & TG3_FLG2_ANY_SERDES)) {
2617                         tp->link_config.speed = SPEED_10;
2618                         tp->link_config.duplex = DUPLEX_HALF;
2619                         tp->link_config.autoneg = AUTONEG_ENABLE;
2620                         tg3_setup_phy(tp, 0);
2621                 }
2622         }
2623
2624         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
2625                 u32 val;
2626
2627                 val = tr32(GRC_VCPU_EXT_CTRL);
2628                 tw32(GRC_VCPU_EXT_CTRL, val | GRC_VCPU_EXT_CTRL_DISABLE_WOL);
2629         } else if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)) {
2630                 int i;
2631                 u32 val;
2632
2633                 for (i = 0; i < 200; i++) {
2634                         tg3_read_mem(tp, NIC_SRAM_FW_ASF_STATUS_MBOX, &val);
2635                         if (val == ~NIC_SRAM_FIRMWARE_MBOX_MAGIC1)
2636                                 break;
2637                         msleep(1);
2638                 }
2639         }
2640         if (tp->tg3_flags & TG3_FLAG_WOL_CAP)
2641                 tg3_write_mem(tp, NIC_SRAM_WOL_MBOX, WOL_SIGNATURE |
2642                                                      WOL_DRV_STATE_SHUTDOWN |
2643                                                      WOL_DRV_WOL |
2644                                                      WOL_SET_MAGIC_PKT);
2645
2646         if (device_should_wake) {
2647                 u32 mac_mode;
2648
2649                 if (!(tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)) {
2650                         if (do_low_power) {
2651                                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x5a);
2652                                 udelay(40);
2653                         }
2654
2655                         if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES)
2656                                 mac_mode = MAC_MODE_PORT_MODE_GMII;
2657                         else
2658                                 mac_mode = MAC_MODE_PORT_MODE_MII;
2659
2660                         mac_mode |= tp->mac_mode & MAC_MODE_LINK_POLARITY;
2661                         if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
2662                             ASIC_REV_5700) {
2663                                 u32 speed = (tp->tg3_flags &
2664                                              TG3_FLAG_WOL_SPEED_100MB) ?
2665                                              SPEED_100 : SPEED_10;
2666                                 if (tg3_5700_link_polarity(tp, speed))
2667                                         mac_mode |= MAC_MODE_LINK_POLARITY;
2668                                 else
2669                                         mac_mode &= ~MAC_MODE_LINK_POLARITY;
2670                         }
2671                 } else {
2672                         mac_mode = MAC_MODE_PORT_MODE_TBI;
2673                 }
2674
2675                 if (!(tp->tg3_flags2 & TG3_FLG2_5750_PLUS))
2676                         tw32(MAC_LED_CTRL, tp->led_ctrl);
2677
2678                 mac_mode |= MAC_MODE_MAGIC_PKT_ENABLE;
2679                 if (((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
2680                     !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) &&
2681                     ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) ||
2682                      (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)))
2683                         mac_mode |= MAC_MODE_KEEP_FRAME_IN_WOL;
2684
2685                 if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
2686                         mac_mode |= tp->mac_mode &
2687                                     (MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN);
2688                         if (mac_mode & MAC_MODE_APE_TX_EN)
2689                                 mac_mode |= MAC_MODE_TDE_ENABLE;
2690                 }
2691
2692                 tw32_f(MAC_MODE, mac_mode);
2693                 udelay(100);
2694
2695                 tw32_f(MAC_RX_MODE, RX_MODE_ENABLE);
2696                 udelay(10);
2697         }
2698
2699         if (!(tp->tg3_flags & TG3_FLAG_WOL_SPEED_100MB) &&
2700             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
2701              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)) {
2702                 u32 base_val;
2703
2704                 base_val = tp->pci_clock_ctrl;
2705                 base_val |= (CLOCK_CTRL_RXCLK_DISABLE |
2706                              CLOCK_CTRL_TXCLK_DISABLE);
2707
2708                 tw32_wait_f(TG3PCI_CLOCK_CTRL, base_val | CLOCK_CTRL_ALTCLK |
2709                             CLOCK_CTRL_PWRDOWN_PLL133, 40);
2710         } else if ((tp->tg3_flags2 & TG3_FLG2_5780_CLASS) ||
2711                    (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) ||
2712                    (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)) {
2713                 /* do nothing */
2714         } else if (!((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
2715                      (tp->tg3_flags & TG3_FLAG_ENABLE_ASF))) {
2716                 u32 newbits1, newbits2;
2717
2718                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
2719                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
2720                         newbits1 = (CLOCK_CTRL_RXCLK_DISABLE |
2721                                     CLOCK_CTRL_TXCLK_DISABLE |
2722                                     CLOCK_CTRL_ALTCLK);
2723                         newbits2 = newbits1 | CLOCK_CTRL_44MHZ_CORE;
2724                 } else if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
2725                         newbits1 = CLOCK_CTRL_625_CORE;
2726                         newbits2 = newbits1 | CLOCK_CTRL_ALTCLK;
2727                 } else {
2728                         newbits1 = CLOCK_CTRL_ALTCLK;
2729                         newbits2 = newbits1 | CLOCK_CTRL_44MHZ_CORE;
2730                 }
2731
2732                 tw32_wait_f(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl | newbits1,
2733                             40);
2734
2735                 tw32_wait_f(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl | newbits2,
2736                             40);
2737
2738                 if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
2739                         u32 newbits3;
2740
2741                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
2742                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
2743                                 newbits3 = (CLOCK_CTRL_RXCLK_DISABLE |
2744                                             CLOCK_CTRL_TXCLK_DISABLE |
2745                                             CLOCK_CTRL_44MHZ_CORE);
2746                         } else {
2747                                 newbits3 = CLOCK_CTRL_44MHZ_CORE;
2748                         }
2749
2750                         tw32_wait_f(TG3PCI_CLOCK_CTRL,
2751                                     tp->pci_clock_ctrl | newbits3, 40);
2752                 }
2753         }
2754
2755         if (!(device_should_wake) &&
2756             !(tp->tg3_flags & TG3_FLAG_ENABLE_ASF))
2757                 tg3_power_down_phy(tp, do_low_power);
2758
2759         tg3_frob_aux_power(tp);
2760
2761         /* Workaround for unstable PLL clock */
2762         if ((GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_AX) ||
2763             (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_BX)) {
2764                 u32 val = tr32(0x7d00);
2765
2766                 val &= ~((1 << 16) | (1 << 4) | (1 << 2) | (1 << 1) | 1);
2767                 tw32(0x7d00, val);
2768                 if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)) {
2769                         int err;
2770
2771                         err = tg3_nvram_lock(tp);
2772                         tg3_halt_cpu(tp, RX_CPU_BASE);
2773                         if (!err)
2774                                 tg3_nvram_unlock(tp);
2775                 }
2776         }
2777
2778         tg3_write_sig_post_reset(tp, RESET_KIND_SHUTDOWN);
2779
2780         if (device_should_wake)
2781                 pci_enable_wake(tp->pdev, state, true);
2782
2783         /* Finally, set the new power state. */
2784         pci_set_power_state(tp->pdev, state);
2785
2786         return 0;
2787 }
2788
2789 static void tg3_aux_stat_to_speed_duplex(struct tg3 *tp, u32 val, u16 *speed, u8 *duplex)
2790 {
2791         switch (val & MII_TG3_AUX_STAT_SPDMASK) {
2792         case MII_TG3_AUX_STAT_10HALF:
2793                 *speed = SPEED_10;
2794                 *duplex = DUPLEX_HALF;
2795                 break;
2796
2797         case MII_TG3_AUX_STAT_10FULL:
2798                 *speed = SPEED_10;
2799                 *duplex = DUPLEX_FULL;
2800                 break;
2801
2802         case MII_TG3_AUX_STAT_100HALF:
2803                 *speed = SPEED_100;
2804                 *duplex = DUPLEX_HALF;
2805                 break;
2806
2807         case MII_TG3_AUX_STAT_100FULL:
2808                 *speed = SPEED_100;
2809                 *duplex = DUPLEX_FULL;
2810                 break;
2811
2812         case MII_TG3_AUX_STAT_1000HALF:
2813                 *speed = SPEED_1000;
2814                 *duplex = DUPLEX_HALF;
2815                 break;
2816
2817         case MII_TG3_AUX_STAT_1000FULL:
2818                 *speed = SPEED_1000;
2819                 *duplex = DUPLEX_FULL;
2820                 break;
2821
2822         default:
2823                 if (tp->tg3_flags3 & TG3_FLG3_PHY_IS_FET) {
2824                         *speed = (val & MII_TG3_AUX_STAT_100) ? SPEED_100 :
2825                                  SPEED_10;
2826                         *duplex = (val & MII_TG3_AUX_STAT_FULL) ? DUPLEX_FULL :
2827                                   DUPLEX_HALF;
2828                         break;
2829                 }
2830                 *speed = SPEED_INVALID;
2831                 *duplex = DUPLEX_INVALID;
2832                 break;
2833         }
2834 }
2835
2836 static void tg3_phy_copper_begin(struct tg3 *tp)
2837 {
2838         u32 new_adv;
2839         int i;
2840
2841         if (tp->link_config.phy_is_low_power) {
2842                 /* Entering low power mode.  Disable gigabit and
2843                  * 100baseT advertisements.
2844                  */
2845                 tg3_writephy(tp, MII_TG3_CTRL, 0);
2846
2847                 new_adv = (ADVERTISE_10HALF | ADVERTISE_10FULL |
2848                            ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
2849                 if (tp->tg3_flags & TG3_FLAG_WOL_SPEED_100MB)
2850                         new_adv |= (ADVERTISE_100HALF | ADVERTISE_100FULL);
2851
2852                 tg3_writephy(tp, MII_ADVERTISE, new_adv);
2853         } else if (tp->link_config.speed == SPEED_INVALID) {
2854                 if (tp->tg3_flags & TG3_FLAG_10_100_ONLY)
2855                         tp->link_config.advertising &=
2856                                 ~(ADVERTISED_1000baseT_Half |
2857                                   ADVERTISED_1000baseT_Full);
2858
2859                 new_adv = ADVERTISE_CSMA;
2860                 if (tp->link_config.advertising & ADVERTISED_10baseT_Half)
2861                         new_adv |= ADVERTISE_10HALF;
2862                 if (tp->link_config.advertising & ADVERTISED_10baseT_Full)
2863                         new_adv |= ADVERTISE_10FULL;
2864                 if (tp->link_config.advertising & ADVERTISED_100baseT_Half)
2865                         new_adv |= ADVERTISE_100HALF;
2866                 if (tp->link_config.advertising & ADVERTISED_100baseT_Full)
2867                         new_adv |= ADVERTISE_100FULL;
2868
2869                 new_adv |= tg3_advert_flowctrl_1000T(tp->link_config.flowctrl);
2870
2871                 tg3_writephy(tp, MII_ADVERTISE, new_adv);
2872
2873                 if (tp->link_config.advertising &
2874                     (ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full)) {
2875                         new_adv = 0;
2876                         if (tp->link_config.advertising & ADVERTISED_1000baseT_Half)
2877                                 new_adv |= MII_TG3_CTRL_ADV_1000_HALF;
2878                         if (tp->link_config.advertising & ADVERTISED_1000baseT_Full)
2879                                 new_adv |= MII_TG3_CTRL_ADV_1000_FULL;
2880                         if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY) &&
2881                             (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
2882                              tp->pci_chip_rev_id == CHIPREV_ID_5701_B0))
2883                                 new_adv |= (MII_TG3_CTRL_AS_MASTER |
2884                                             MII_TG3_CTRL_ENABLE_AS_MASTER);
2885                         tg3_writephy(tp, MII_TG3_CTRL, new_adv);
2886                 } else {
2887                         tg3_writephy(tp, MII_TG3_CTRL, 0);
2888                 }
2889         } else {
2890                 new_adv = tg3_advert_flowctrl_1000T(tp->link_config.flowctrl);
2891                 new_adv |= ADVERTISE_CSMA;
2892
2893                 /* Asking for a specific link mode. */
2894                 if (tp->link_config.speed == SPEED_1000) {
2895                         tg3_writephy(tp, MII_ADVERTISE, new_adv);
2896
2897                         if (tp->link_config.duplex == DUPLEX_FULL)
2898                                 new_adv = MII_TG3_CTRL_ADV_1000_FULL;
2899                         else
2900                                 new_adv = MII_TG3_CTRL_ADV_1000_HALF;
2901                         if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
2902                             tp->pci_chip_rev_id == CHIPREV_ID_5701_B0)
2903                                 new_adv |= (MII_TG3_CTRL_AS_MASTER |
2904                                             MII_TG3_CTRL_ENABLE_AS_MASTER);
2905                 } else {
2906                         if (tp->link_config.speed == SPEED_100) {
2907                                 if (tp->link_config.duplex == DUPLEX_FULL)
2908                                         new_adv |= ADVERTISE_100FULL;
2909                                 else
2910                                         new_adv |= ADVERTISE_100HALF;
2911                         } else {
2912                                 if (tp->link_config.duplex == DUPLEX_FULL)
2913                                         new_adv |= ADVERTISE_10FULL;
2914                                 else
2915                                         new_adv |= ADVERTISE_10HALF;
2916                         }
2917                         tg3_writephy(tp, MII_ADVERTISE, new_adv);
2918
2919                         new_adv = 0;
2920                 }
2921
2922                 tg3_writephy(tp, MII_TG3_CTRL, new_adv);
2923         }
2924
2925         if (tp->link_config.autoneg == AUTONEG_DISABLE &&
2926             tp->link_config.speed != SPEED_INVALID) {
2927                 u32 bmcr, orig_bmcr;
2928
2929                 tp->link_config.active_speed = tp->link_config.speed;
2930                 tp->link_config.active_duplex = tp->link_config.duplex;
2931
2932                 bmcr = 0;
2933                 switch (tp->link_config.speed) {
2934                 default:
2935                 case SPEED_10:
2936                         break;
2937
2938                 case SPEED_100:
2939                         bmcr |= BMCR_SPEED100;
2940                         break;
2941
2942                 case SPEED_1000:
2943                         bmcr |= TG3_BMCR_SPEED1000;
2944                         break;
2945                 }
2946
2947                 if (tp->link_config.duplex == DUPLEX_FULL)
2948                         bmcr |= BMCR_FULLDPLX;
2949
2950                 if (!tg3_readphy(tp, MII_BMCR, &orig_bmcr) &&
2951                     (bmcr != orig_bmcr)) {
2952                         tg3_writephy(tp, MII_BMCR, BMCR_LOOPBACK);
2953                         for (i = 0; i < 1500; i++) {
2954                                 u32 tmp;
2955
2956                                 udelay(10);
2957                                 if (tg3_readphy(tp, MII_BMSR, &tmp) ||
2958                                     tg3_readphy(tp, MII_BMSR, &tmp))
2959                                         continue;
2960                                 if (!(tmp & BMSR_LSTATUS)) {
2961                                         udelay(40);
2962                                         break;
2963                                 }
2964                         }
2965                         tg3_writephy(tp, MII_BMCR, bmcr);
2966                         udelay(40);
2967                 }
2968         } else {
2969                 tg3_writephy(tp, MII_BMCR,
2970                              BMCR_ANENABLE | BMCR_ANRESTART);
2971         }
2972 }
2973
2974 static int tg3_init_5401phy_dsp(struct tg3 *tp)
2975 {
2976         int err;
2977
2978         /* Turn off tap power management. */
2979         /* Set Extended packet length bit */
2980         err  = tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4c20);
2981
2982         err |= tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x0012);
2983         err |= tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x1804);
2984
2985         err |= tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x0013);
2986         err |= tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x1204);
2987
2988         err |= tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8006);
2989         err |= tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x0132);
2990
2991         err |= tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8006);
2992         err |= tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x0232);
2993
2994         err |= tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x201f);
2995         err |= tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x0a20);
2996
2997         udelay(40);
2998
2999         return err;
3000 }
3001
3002 static int tg3_copper_is_advertising_all(struct tg3 *tp, u32 mask)
3003 {
3004         u32 adv_reg, all_mask = 0;
3005
3006         if (mask & ADVERTISED_10baseT_Half)
3007                 all_mask |= ADVERTISE_10HALF;
3008         if (mask & ADVERTISED_10baseT_Full)
3009                 all_mask |= ADVERTISE_10FULL;
3010         if (mask & ADVERTISED_100baseT_Half)
3011                 all_mask |= ADVERTISE_100HALF;
3012         if (mask & ADVERTISED_100baseT_Full)
3013                 all_mask |= ADVERTISE_100FULL;
3014
3015         if (tg3_readphy(tp, MII_ADVERTISE, &adv_reg))
3016                 return 0;
3017
3018         if ((adv_reg & all_mask) != all_mask)
3019                 return 0;
3020         if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY)) {
3021                 u32 tg3_ctrl;
3022
3023                 all_mask = 0;
3024                 if (mask & ADVERTISED_1000baseT_Half)
3025                         all_mask |= ADVERTISE_1000HALF;
3026                 if (mask & ADVERTISED_1000baseT_Full)
3027                         all_mask |= ADVERTISE_1000FULL;
3028
3029                 if (tg3_readphy(tp, MII_TG3_CTRL, &tg3_ctrl))
3030                         return 0;
3031
3032                 if ((tg3_ctrl & all_mask) != all_mask)
3033                         return 0;
3034         }
3035         return 1;
3036 }
3037
3038 static int tg3_adv_1000T_flowctrl_ok(struct tg3 *tp, u32 *lcladv, u32 *rmtadv)
3039 {
3040         u32 curadv, reqadv;
3041
3042         if (tg3_readphy(tp, MII_ADVERTISE, lcladv))
3043                 return 1;
3044
3045         curadv = *lcladv & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
3046         reqadv = tg3_advert_flowctrl_1000T(tp->link_config.flowctrl);
3047
3048         if (tp->link_config.active_duplex == DUPLEX_FULL) {
3049                 if (curadv != reqadv)
3050                         return 0;
3051
3052                 if (tp->tg3_flags & TG3_FLAG_PAUSE_AUTONEG)
3053                         tg3_readphy(tp, MII_LPA, rmtadv);
3054         } else {
3055                 /* Reprogram the advertisement register, even if it
3056                  * does not affect the current link.  If the link
3057                  * gets renegotiated in the future, we can save an
3058                  * additional renegotiation cycle by advertising
3059                  * it correctly in the first place.
3060                  */
3061                 if (curadv != reqadv) {
3062                         *lcladv &= ~(ADVERTISE_PAUSE_CAP |
3063                                      ADVERTISE_PAUSE_ASYM);
3064                         tg3_writephy(tp, MII_ADVERTISE, *lcladv | reqadv);
3065                 }
3066         }
3067
3068         return 1;
3069 }
3070
3071 static int tg3_setup_copper_phy(struct tg3 *tp, int force_reset)
3072 {
3073         int current_link_up;
3074         u32 bmsr, dummy;
3075         u32 lcl_adv, rmt_adv;
3076         u16 current_speed;
3077         u8 current_duplex;
3078         int i, err;
3079
3080         tw32(MAC_EVENT, 0);
3081
3082         tw32_f(MAC_STATUS,
3083              (MAC_STATUS_SYNC_CHANGED |
3084               MAC_STATUS_CFG_CHANGED |
3085               MAC_STATUS_MI_COMPLETION |
3086               MAC_STATUS_LNKSTATE_CHANGED));
3087         udelay(40);
3088
3089         if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
3090                 tw32_f(MAC_MI_MODE,
3091                      (tp->mi_mode & ~MAC_MI_MODE_AUTO_POLL));
3092                 udelay(80);
3093         }
3094
3095         tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x02);
3096
3097         /* Some third-party PHYs need to be reset on link going
3098          * down.
3099          */
3100         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
3101              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
3102              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) &&
3103             netif_carrier_ok(tp->dev)) {
3104                 tg3_readphy(tp, MII_BMSR, &bmsr);
3105                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
3106                     !(bmsr & BMSR_LSTATUS))
3107                         force_reset = 1;
3108         }
3109         if (force_reset)
3110                 tg3_phy_reset(tp);
3111
3112         if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5401) {
3113                 tg3_readphy(tp, MII_BMSR, &bmsr);
3114                 if (tg3_readphy(tp, MII_BMSR, &bmsr) ||
3115                     !(tp->tg3_flags & TG3_FLAG_INIT_COMPLETE))
3116                         bmsr = 0;
3117
3118                 if (!(bmsr & BMSR_LSTATUS)) {
3119                         err = tg3_init_5401phy_dsp(tp);
3120                         if (err)
3121                                 return err;
3122
3123                         tg3_readphy(tp, MII_BMSR, &bmsr);
3124                         for (i = 0; i < 1000; i++) {
3125                                 udelay(10);
3126                                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
3127                                     (bmsr & BMSR_LSTATUS)) {
3128                                         udelay(40);
3129                                         break;
3130                                 }
3131                         }
3132
3133                         if ((tp->phy_id & TG3_PHY_ID_REV_MASK) ==
3134                             TG3_PHY_REV_BCM5401_B0 &&
3135                             !(bmsr & BMSR_LSTATUS) &&
3136                             tp->link_config.active_speed == SPEED_1000) {
3137                                 err = tg3_phy_reset(tp);
3138                                 if (!err)
3139                                         err = tg3_init_5401phy_dsp(tp);
3140                                 if (err)
3141                                         return err;
3142                         }
3143                 }
3144         } else if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
3145                    tp->pci_chip_rev_id == CHIPREV_ID_5701_B0) {
3146                 /* 5701 {A0,B0} CRC bug workaround */
3147                 tg3_writephy(tp, 0x15, 0x0a75);
3148                 tg3_writephy(tp, 0x1c, 0x8c68);
3149                 tg3_writephy(tp, 0x1c, 0x8d68);
3150                 tg3_writephy(tp, 0x1c, 0x8c68);
3151         }
3152
3153         /* Clear pending interrupts... */
3154         tg3_readphy(tp, MII_TG3_ISTAT, &dummy);
3155         tg3_readphy(tp, MII_TG3_ISTAT, &dummy);
3156
3157         if (tp->tg3_flags & TG3_FLAG_USE_MI_INTERRUPT)
3158                 tg3_writephy(tp, MII_TG3_IMASK, ~MII_TG3_INT_LINKCHG);
3159         else if (!(tp->tg3_flags3 & TG3_FLG3_PHY_IS_FET))
3160                 tg3_writephy(tp, MII_TG3_IMASK, ~0);
3161
3162         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
3163             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
3164                 if (tp->led_ctrl == LED_CTRL_MODE_PHY_1)
3165                         tg3_writephy(tp, MII_TG3_EXT_CTRL,
3166                                      MII_TG3_EXT_CTRL_LNK3_LED_MODE);
3167                 else
3168                         tg3_writephy(tp, MII_TG3_EXT_CTRL, 0);
3169         }
3170
3171         current_link_up = 0;
3172         current_speed = SPEED_INVALID;
3173         current_duplex = DUPLEX_INVALID;
3174
3175         if (tp->tg3_flags2 & TG3_FLG2_CAPACITIVE_COUPLING) {
3176                 u32 val;
3177
3178                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4007);
3179                 tg3_readphy(tp, MII_TG3_AUX_CTRL, &val);
3180                 if (!(val & (1 << 10))) {
3181                         val |= (1 << 10);
3182                         tg3_writephy(tp, MII_TG3_AUX_CTRL, val);
3183                         goto relink;
3184                 }
3185         }
3186
3187         bmsr = 0;
3188         for (i = 0; i < 100; i++) {
3189                 tg3_readphy(tp, MII_BMSR, &bmsr);
3190                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
3191                     (bmsr & BMSR_LSTATUS))
3192                         break;
3193                 udelay(40);
3194         }
3195
3196         if (bmsr & BMSR_LSTATUS) {
3197                 u32 aux_stat, bmcr;
3198
3199                 tg3_readphy(tp, MII_TG3_AUX_STAT, &aux_stat);
3200                 for (i = 0; i < 2000; i++) {
3201                         udelay(10);
3202                         if (!tg3_readphy(tp, MII_TG3_AUX_STAT, &aux_stat) &&
3203                             aux_stat)
3204                                 break;
3205                 }
3206
3207                 tg3_aux_stat_to_speed_duplex(tp, aux_stat,
3208                                              &current_speed,
3209                                              &current_duplex);
3210
3211                 bmcr = 0;
3212                 for (i = 0; i < 200; i++) {
3213                         tg3_readphy(tp, MII_BMCR, &bmcr);
3214                         if (tg3_readphy(tp, MII_BMCR, &bmcr))
3215                                 continue;
3216                         if (bmcr && bmcr != 0x7fff)
3217                                 break;
3218                         udelay(10);
3219                 }
3220
3221                 lcl_adv = 0;
3222                 rmt_adv = 0;
3223
3224                 tp->link_config.active_speed = current_speed;
3225                 tp->link_config.active_duplex = current_duplex;
3226
3227                 if (tp->link_config.autoneg == AUTONEG_ENABLE) {
3228                         if ((bmcr & BMCR_ANENABLE) &&
3229                             tg3_copper_is_advertising_all(tp,
3230                                                 tp->link_config.advertising)) {
3231                                 if (tg3_adv_1000T_flowctrl_ok(tp, &lcl_adv,
3232                                                                   &rmt_adv))
3233                                         current_link_up = 1;
3234                         }
3235                 } else {
3236                         if (!(bmcr & BMCR_ANENABLE) &&
3237                             tp->link_config.speed == current_speed &&
3238                             tp->link_config.duplex == current_duplex &&
3239                             tp->link_config.flowctrl ==
3240                             tp->link_config.active_flowctrl) {
3241                                 current_link_up = 1;
3242                         }
3243                 }
3244
3245                 if (current_link_up == 1 &&
3246                     tp->link_config.active_duplex == DUPLEX_FULL)
3247                         tg3_setup_flow_control(tp, lcl_adv, rmt_adv);
3248         }
3249
3250 relink:
3251         if (current_link_up == 0 || tp->link_config.phy_is_low_power) {
3252                 u32 tmp;
3253
3254                 tg3_phy_copper_begin(tp);
3255
3256                 tg3_readphy(tp, MII_BMSR, &tmp);
3257                 if (!tg3_readphy(tp, MII_BMSR, &tmp) &&
3258                     (tmp & BMSR_LSTATUS))
3259                         current_link_up = 1;
3260         }
3261
3262         tp->mac_mode &= ~MAC_MODE_PORT_MODE_MASK;
3263         if (current_link_up == 1) {
3264                 if (tp->link_config.active_speed == SPEED_100 ||
3265                     tp->link_config.active_speed == SPEED_10)
3266                         tp->mac_mode |= MAC_MODE_PORT_MODE_MII;
3267                 else
3268                         tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
3269         } else if (tp->tg3_flags3 & TG3_FLG3_PHY_IS_FET)
3270                 tp->mac_mode |= MAC_MODE_PORT_MODE_MII;
3271         else
3272                 tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
3273
3274         tp->mac_mode &= ~MAC_MODE_HALF_DUPLEX;
3275         if (tp->link_config.active_duplex == DUPLEX_HALF)
3276                 tp->mac_mode |= MAC_MODE_HALF_DUPLEX;
3277
3278         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) {
3279                 if (current_link_up == 1 &&
3280                     tg3_5700_link_polarity(tp, tp->link_config.active_speed))
3281                         tp->mac_mode |= MAC_MODE_LINK_POLARITY;
3282                 else
3283                         tp->mac_mode &= ~MAC_MODE_LINK_POLARITY;
3284         }
3285
3286         /* ??? Without this setting Netgear GA302T PHY does not
3287          * ??? send/receive packets...
3288          */
3289         if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5411 &&
3290             tp->pci_chip_rev_id == CHIPREV_ID_5700_ALTIMA) {
3291                 tp->mi_mode |= MAC_MI_MODE_AUTO_POLL;
3292                 tw32_f(MAC_MI_MODE, tp->mi_mode);
3293                 udelay(80);
3294         }
3295
3296         tw32_f(MAC_MODE, tp->mac_mode);
3297         udelay(40);
3298
3299         if (tp->tg3_flags & TG3_FLAG_USE_LINKCHG_REG) {
3300                 /* Polled via timer. */
3301                 tw32_f(MAC_EVENT, 0);
3302         } else {
3303                 tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
3304         }
3305         udelay(40);
3306
3307         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 &&
3308             current_link_up == 1 &&
3309             tp->link_config.active_speed == SPEED_1000 &&
3310             ((tp->tg3_flags & TG3_FLAG_PCIX_MODE) ||
3311              (tp->tg3_flags & TG3_FLAG_PCI_HIGH_SPEED))) {
3312                 udelay(120);
3313                 tw32_f(MAC_STATUS,
3314                      (MAC_STATUS_SYNC_CHANGED |
3315                       MAC_STATUS_CFG_CHANGED));
3316                 udelay(40);
3317                 tg3_write_mem(tp,
3318                               NIC_SRAM_FIRMWARE_MBOX,
3319                               NIC_SRAM_FIRMWARE_MBOX_MAGIC2);
3320         }
3321
3322         /* Prevent send BD corruption. */
3323         if (tp->tg3_flags3 & TG3_FLG3_CLKREQ_BUG) {
3324                 u16 oldlnkctl, newlnkctl;
3325
3326                 pci_read_config_word(tp->pdev,
3327                                      tp->pcie_cap + PCI_EXP_LNKCTL,
3328                                      &oldlnkctl);
3329                 if (tp->link_config.active_speed == SPEED_100 ||
3330                     tp->link_config.active_speed == SPEED_10)
3331                         newlnkctl = oldlnkctl & ~PCI_EXP_LNKCTL_CLKREQ_EN;
3332                 else
3333                         newlnkctl = oldlnkctl | PCI_EXP_LNKCTL_CLKREQ_EN;
3334                 if (newlnkctl != oldlnkctl)
3335                         pci_write_config_word(tp->pdev,
3336                                               tp->pcie_cap + PCI_EXP_LNKCTL,
3337                                               newlnkctl);
3338         }
3339
3340         if (current_link_up != netif_carrier_ok(tp->dev)) {
3341                 if (current_link_up)
3342                         netif_carrier_on(tp->dev);
3343                 else
3344                         netif_carrier_off(tp->dev);
3345                 tg3_link_report(tp);
3346         }
3347
3348         return 0;
3349 }
3350
3351 struct tg3_fiber_aneginfo {
3352         int state;
3353 #define ANEG_STATE_UNKNOWN              0
3354 #define ANEG_STATE_AN_ENABLE            1
3355 #define ANEG_STATE_RESTART_INIT         2
3356 #define ANEG_STATE_RESTART              3
3357 #define ANEG_STATE_DISABLE_LINK_OK      4
3358 #define ANEG_STATE_ABILITY_DETECT_INIT  5
3359 #define ANEG_STATE_ABILITY_DETECT       6
3360 #define ANEG_STATE_ACK_DETECT_INIT      7
3361 #define ANEG_STATE_ACK_DETECT           8
3362 #define ANEG_STATE_COMPLETE_ACK_INIT    9
3363 #define ANEG_STATE_COMPLETE_ACK         10
3364 #define ANEG_STATE_IDLE_DETECT_INIT     11
3365 #define ANEG_STATE_IDLE_DETECT          12
3366 #define ANEG_STATE_LINK_OK              13
3367 #define ANEG_STATE_NEXT_PAGE_WAIT_INIT  14
3368 #define ANEG_STATE_NEXT_PAGE_WAIT       15
3369
3370         u32 flags;
3371 #define MR_AN_ENABLE            0x00000001
3372 #define MR_RESTART_AN           0x00000002
3373 #define MR_AN_COMPLETE          0x00000004
3374 #define MR_PAGE_RX              0x00000008
3375 #define MR_NP_LOADED            0x00000010
3376 #define MR_TOGGLE_TX            0x00000020
3377 #define MR_LP_ADV_FULL_DUPLEX   0x00000040
3378 #define MR_LP_ADV_HALF_DUPLEX   0x00000080
3379 #define MR_LP_ADV_SYM_PAUSE     0x00000100
3380 #define MR_LP_ADV_ASYM_PAUSE    0x00000200
3381 #define MR_LP_ADV_REMOTE_FAULT1 0x00000400
3382 #define MR_LP_ADV_REMOTE_FAULT2 0x00000800
3383 #define MR_LP_ADV_NEXT_PAGE     0x00001000
3384 #define MR_TOGGLE_RX            0x00002000
3385 #define MR_NP_RX                0x00004000
3386
3387 #define MR_LINK_OK              0x80000000
3388
3389         unsigned long link_time, cur_time;
3390
3391         u32 ability_match_cfg;
3392         int ability_match_count;
3393
3394         char ability_match, idle_match, ack_match;
3395
3396         u32 txconfig, rxconfig;
3397 #define ANEG_CFG_NP             0x00000080
3398 #define ANEG_CFG_ACK            0x00000040
3399 #define ANEG_CFG_RF2            0x00000020
3400 #define ANEG_CFG_RF1            0x00000010
3401 #define ANEG_CFG_PS2            0x00000001
3402 #define ANEG_CFG_PS1            0x00008000
3403 #define ANEG_CFG_HD             0x00004000
3404 #define ANEG_CFG_FD             0x00002000
3405 #define ANEG_CFG_INVAL          0x00001f06
3406
3407 };
3408 #define ANEG_OK         0
3409 #define ANEG_DONE       1
3410 #define ANEG_TIMER_ENAB 2
3411 #define ANEG_FAILED     -1
3412
3413 #define ANEG_STATE_SETTLE_TIME  10000
3414
3415 static int tg3_fiber_aneg_smachine(struct tg3 *tp,
3416                                    struct tg3_fiber_aneginfo *ap)
3417 {
3418         u16 flowctrl;
3419         unsigned long delta;
3420         u32 rx_cfg_reg;
3421         int ret;
3422
3423         if (ap->state == ANEG_STATE_UNKNOWN) {
3424                 ap->rxconfig = 0;
3425                 ap->link_time = 0;
3426                 ap->cur_time = 0;
3427                 ap->ability_match_cfg = 0;
3428                 ap->ability_match_count = 0;
3429                 ap->ability_match = 0;
3430                 ap->idle_match = 0;
3431                 ap->ack_match = 0;
3432         }
3433         ap->cur_time++;
3434
3435         if (tr32(MAC_STATUS) & MAC_STATUS_RCVD_CFG) {
3436                 rx_cfg_reg = tr32(MAC_RX_AUTO_NEG);
3437
3438                 if (rx_cfg_reg != ap->ability_match_cfg) {
3439                         ap->ability_match_cfg = rx_cfg_reg;
3440                         ap->ability_match = 0;
3441                         ap->ability_match_count = 0;
3442                 } else {
3443                         if (++ap->ability_match_count > 1) {
3444                                 ap->ability_match = 1;
3445                                 ap->ability_match_cfg = rx_cfg_reg;
3446                         }
3447                 }
3448                 if (rx_cfg_reg & ANEG_CFG_ACK)
3449                         ap->ack_match = 1;
3450                 else
3451                         ap->ack_match = 0;
3452
3453                 ap->idle_match = 0;
3454         } else {
3455                 ap->idle_match = 1;
3456                 ap->ability_match_cfg = 0;
3457                 ap->ability_match_count = 0;
3458                 ap->ability_match = 0;
3459                 ap->ack_match = 0;
3460
3461                 rx_cfg_reg = 0;
3462         }
3463
3464         ap->rxconfig = rx_cfg_reg;
3465         ret = ANEG_OK;
3466
3467         switch (ap->state) {
3468         case ANEG_STATE_UNKNOWN:
3469                 if (ap->flags & (MR_AN_ENABLE | MR_RESTART_AN))
3470                         ap->state = ANEG_STATE_AN_ENABLE;
3471
3472                 /* fallthru */
3473         case ANEG_STATE_AN_ENABLE:
3474                 ap->flags &= ~(MR_AN_COMPLETE | MR_PAGE_RX);
3475                 if (ap->flags & MR_AN_ENABLE) {
3476                         ap->link_time = 0;
3477                         ap->cur_time = 0;
3478                         ap->ability_match_cfg = 0;
3479                         ap->ability_match_count = 0;
3480                         ap->ability_match = 0;
3481                         ap->idle_match = 0;
3482                         ap->ack_match = 0;
3483
3484                         ap->state = ANEG_STATE_RESTART_INIT;
3485                 } else {
3486                         ap->state = ANEG_STATE_DISABLE_LINK_OK;
3487                 }
3488                 break;
3489
3490         case ANEG_STATE_RESTART_INIT:
3491                 ap->link_time = ap->cur_time;
3492                 ap->flags &= ~(MR_NP_LOADED);
3493                 ap->txconfig = 0;
3494                 tw32(MAC_TX_AUTO_NEG, 0);
3495                 tp->mac_mode |= MAC_MODE_SEND_CONFIGS;
3496                 tw32_f(MAC_MODE, tp->mac_mode);
3497                 udelay(40);
3498
3499                 ret = ANEG_TIMER_ENAB;
3500                 ap->state = ANEG_STATE_RESTART;
3501
3502                 /* fallthru */
3503         case ANEG_STATE_RESTART:
3504                 delta = ap->cur_time - ap->link_time;
3505                 if (delta > ANEG_STATE_SETTLE_TIME)
3506                         ap->state = ANEG_STATE_ABILITY_DETECT_INIT;
3507                 else
3508                         ret = ANEG_TIMER_ENAB;
3509                 break;
3510
3511         case ANEG_STATE_DISABLE_LINK_OK:
3512                 ret = ANEG_DONE;
3513                 break;
3514
3515         case ANEG_STATE_ABILITY_DETECT_INIT:
3516                 ap->flags &= ~(MR_TOGGLE_TX);
3517                 ap->txconfig = ANEG_CFG_FD;
3518                 flowctrl = tg3_advert_flowctrl_1000X(tp->link_config.flowctrl);
3519                 if (flowctrl & ADVERTISE_1000XPAUSE)
3520                         ap->txconfig |= ANEG_CFG_PS1;
3521                 if (flowctrl & ADVERTISE_1000XPSE_ASYM)
3522                         ap->txconfig |= ANEG_CFG_PS2;
3523                 tw32(MAC_TX_AUTO_NEG, ap->txconfig);
3524                 tp->mac_mode |= MAC_MODE_SEND_CONFIGS;
3525                 tw32_f(MAC_MODE, tp->mac_mode);
3526                 udelay(40);
3527
3528                 ap->state = ANEG_STATE_ABILITY_DETECT;
3529                 break;
3530
3531         case ANEG_STATE_ABILITY_DETECT:
3532                 if (ap->ability_match != 0 && ap->rxconfig != 0)
3533                         ap->state = ANEG_STATE_ACK_DETECT_INIT;
3534                 break;
3535
3536         case ANEG_STATE_ACK_DETECT_INIT:
3537                 ap->txconfig |= ANEG_CFG_ACK;
3538                 tw32(MAC_TX_AUTO_NEG, ap->txconfig);
3539                 tp->mac_mode |= MAC_MODE_SEND_CONFIGS;
3540                 tw32_f(MAC_MODE, tp->mac_mode);
3541                 udelay(40);
3542
3543                 ap->state = ANEG_STATE_ACK_DETECT;
3544
3545                 /* fallthru */
3546         case ANEG_STATE_ACK_DETECT:
3547                 if (ap->ack_match != 0) {
3548                         if ((ap->rxconfig & ~ANEG_CFG_ACK) ==
3549                             (ap->ability_match_cfg & ~ANEG_CFG_ACK)) {
3550                                 ap->state = ANEG_STATE_COMPLETE_ACK_INIT;
3551                         } else {
3552                                 ap->state = ANEG_STATE_AN_ENABLE;
3553                         }
3554                 } else if (ap->ability_match != 0 &&
3555                            ap->rxconfig == 0) {
3556                         ap->state = ANEG_STATE_AN_ENABLE;
3557                 }
3558                 break;
3559
3560         case ANEG_STATE_COMPLETE_ACK_INIT:
3561                 if (ap->rxconfig & ANEG_CFG_INVAL) {
3562                         ret = ANEG_FAILED;
3563                         break;
3564                 }
3565                 ap->flags &= ~(MR_LP_ADV_FULL_DUPLEX |
3566                                MR_LP_ADV_HALF_DUPLEX |
3567                                MR_LP_ADV_SYM_PAUSE |
3568                                MR_LP_ADV_ASYM_PAUSE |
3569                                MR_LP_ADV_REMOTE_FAULT1 |
3570                                MR_LP_ADV_REMOTE_FAULT2 |
3571                                MR_LP_ADV_NEXT_PAGE |
3572                                MR_TOGGLE_RX |
3573                                MR_NP_RX);
3574                 if (ap->rxconfig & ANEG_CFG_FD)
3575                         ap->flags |= MR_LP_ADV_FULL_DUPLEX;
3576                 if (ap->rxconfig & ANEG_CFG_HD)
3577                         ap->flags |= MR_LP_ADV_HALF_DUPLEX;
3578                 if (ap->rxconfig & ANEG_CFG_PS1)
3579                         ap->flags |= MR_LP_ADV_SYM_PAUSE;
3580                 if (ap->rxconfig & ANEG_CFG_PS2)
3581                         ap->flags |= MR_LP_ADV_ASYM_PAUSE;
3582                 if (ap->rxconfig & ANEG_CFG_RF1)
3583                         ap->flags |= MR_LP_ADV_REMOTE_FAULT1;
3584                 if (ap->rxconfig & ANEG_CFG_RF2)
3585                         ap->flags |= MR_LP_ADV_REMOTE_FAULT2;
3586                 if (ap->rxconfig & ANEG_CFG_NP)
3587                         ap->flags |= MR_LP_ADV_NEXT_PAGE;
3588
3589                 ap->link_time = ap->cur_time;
3590
3591                 ap->flags ^= (MR_TOGGLE_TX);
3592                 if (ap->rxconfig & 0x0008)
3593                         ap->flags |= MR_TOGGLE_RX;
3594                 if (ap->rxconfig & ANEG_CFG_NP)
3595                         ap->flags |= MR_NP_RX;
3596                 ap->flags |= MR_PAGE_RX;
3597
3598                 ap->state = ANEG_STATE_COMPLETE_ACK;
3599                 ret = ANEG_TIMER_ENAB;
3600                 break;
3601
3602         case ANEG_STATE_COMPLETE_ACK:
3603                 if (ap->ability_match != 0 &&
3604                     ap->rxconfig == 0) {
3605                         ap->state = ANEG_STATE_AN_ENABLE;
3606                         break;
3607                 }
3608                 delta = ap->cur_time - ap->link_time;
3609                 if (delta > ANEG_STATE_SETTLE_TIME) {
3610                         if (!(ap->flags & (MR_LP_ADV_NEXT_PAGE))) {
3611                                 ap->state = ANEG_STATE_IDLE_DETECT_INIT;
3612                         } else {
3613                                 if ((ap->txconfig & ANEG_CFG_NP) == 0 &&
3614                                     !(ap->flags & MR_NP_RX)) {
3615                                         ap->state = ANEG_STATE_IDLE_DETECT_INIT;
3616                                 } else {
3617                                         ret = ANEG_FAILED;
3618                                 }
3619                         }
3620                 }
3621                 break;
3622
3623         case ANEG_STATE_IDLE_DETECT_INIT:
3624                 ap->link_time = ap->cur_time;
3625                 tp->mac_mode &= ~MAC_MODE_SEND_CONFIGS;
3626                 tw32_f(MAC_MODE, tp->mac_mode);
3627                 udelay(40);
3628
3629                 ap->state = ANEG_STATE_IDLE_DETECT;
3630                 ret = ANEG_TIMER_ENAB;
3631                 break;
3632
3633         case ANEG_STATE_IDLE_DETECT:
3634                 if (ap->ability_match != 0 &&
3635                     ap->rxconfig == 0) {
3636                         ap->state = ANEG_STATE_AN_ENABLE;
3637                         break;
3638                 }
3639                 delta = ap->cur_time - ap->link_time;
3640                 if (delta > ANEG_STATE_SETTLE_TIME) {
3641                         /* XXX another gem from the Broadcom driver :( */
3642                         ap->state = ANEG_STATE_LINK_OK;
3643                 }
3644                 break;
3645
3646         case ANEG_STATE_LINK_OK:
3647                 ap->flags |= (MR_AN_COMPLETE | MR_LINK_OK);
3648                 ret = ANEG_DONE;
3649                 break;
3650
3651         case ANEG_STATE_NEXT_PAGE_WAIT_INIT:
3652                 /* ??? unimplemented */
3653                 break;
3654
3655         case ANEG_STATE_NEXT_PAGE_WAIT:
3656                 /* ??? unimplemented */
3657                 break;
3658
3659         default:
3660                 ret = ANEG_FAILED;
3661                 break;
3662         }
3663
3664         return ret;
3665 }
3666
3667 static int fiber_autoneg(struct tg3 *tp, u32 *txflags, u32 *rxflags)
3668 {
3669         int res = 0;
3670         struct tg3_fiber_aneginfo aninfo;
3671         int status = ANEG_FAILED;
3672         unsigned int tick;
3673         u32 tmp;
3674
3675         tw32_f(MAC_TX_AUTO_NEG, 0);
3676
3677         tmp = tp->mac_mode & ~MAC_MODE_PORT_MODE_MASK;
3678         tw32_f(MAC_MODE, tmp | MAC_MODE_PORT_MODE_GMII);
3679         udelay(40);
3680
3681         tw32_f(MAC_MODE, tp->mac_mode | MAC_MODE_SEND_CONFIGS);
3682         udelay(40);
3683
3684         memset(&aninfo, 0, sizeof(aninfo));
3685         aninfo.flags |= MR_AN_ENABLE;
3686         aninfo.state = ANEG_STATE_UNKNOWN;
3687         aninfo.cur_time = 0;
3688         tick = 0;
3689         while (++tick < 195000) {
3690                 status = tg3_fiber_aneg_smachine(tp, &aninfo);
3691                 if (status == ANEG_DONE || status == ANEG_FAILED)
3692                         break;
3693
3694                 udelay(1);
3695         }
3696
3697         tp->mac_mode &= ~MAC_MODE_SEND_CONFIGS;
3698         tw32_f(MAC_MODE, tp->mac_mode);
3699         udelay(40);
3700
3701         *txflags = aninfo.txconfig;
3702         *rxflags = aninfo.flags;
3703
3704         if (status == ANEG_DONE &&
3705             (aninfo.flags & (MR_AN_COMPLETE | MR_LINK_OK |
3706                              MR_LP_ADV_FULL_DUPLEX)))
3707                 res = 1;
3708
3709         return res;
3710 }
3711
3712 static void tg3_init_bcm8002(struct tg3 *tp)
3713 {
3714         u32 mac_status = tr32(MAC_STATUS);
3715         int i;
3716
3717         /* Reset when initting first time or we have a link. */
3718         if ((tp->tg3_flags & TG3_FLAG_INIT_COMPLETE) &&
3719             !(mac_status & MAC_STATUS_PCS_SYNCED))
3720                 return;
3721
3722         /* Set PLL lock range. */
3723         tg3_writephy(tp, 0x16, 0x8007);
3724
3725         /* SW reset */
3726         tg3_writephy(tp, MII_BMCR, BMCR_RESET);
3727
3728         /* Wait for reset to complete. */
3729         /* XXX schedule_timeout() ... */
3730         for (i = 0; i < 500; i++)
3731                 udelay(10);
3732
3733         /* Config mode; select PMA/Ch 1 regs. */
3734         tg3_writephy(tp, 0x10, 0x8411);
3735
3736         /* Enable auto-lock and comdet, select txclk for tx. */
3737         tg3_writephy(tp, 0x11, 0x0a10);
3738
3739         tg3_writephy(tp, 0x18, 0x00a0);
3740         tg3_writephy(tp, 0x16, 0x41ff);
3741
3742         /* Assert and deassert POR. */
3743         tg3_writephy(tp, 0x13, 0x0400);
3744         udelay(40);
3745         tg3_writephy(tp, 0x13, 0x0000);
3746
3747         tg3_writephy(tp, 0x11, 0x0a50);
3748         udelay(40);
3749         tg3_writephy(tp, 0x11, 0x0a10);
3750
3751         /* Wait for signal to stabilize */
3752         /* XXX schedule_timeout() ... */
3753         for (i = 0; i < 15000; i++)
3754                 udelay(10);
3755
3756         /* Deselect the channel register so we can read the PHYID
3757          * later.
3758          */
3759         tg3_writephy(tp, 0x10, 0x8011);
3760 }
3761
3762 static int tg3_setup_fiber_hw_autoneg(struct tg3 *tp, u32 mac_status)
3763 {
3764         u16 flowctrl;
3765         u32 sg_dig_ctrl, sg_dig_status;
3766         u32 serdes_cfg, expected_sg_dig_ctrl;
3767         int workaround, port_a;
3768         int current_link_up;
3769
3770         serdes_cfg = 0;
3771         expected_sg_dig_ctrl = 0;
3772         workaround = 0;
3773         port_a = 1;
3774         current_link_up = 0;
3775
3776         if (tp->pci_chip_rev_id != CHIPREV_ID_5704_A0 &&
3777             tp->pci_chip_rev_id != CHIPREV_ID_5704_A1) {
3778                 workaround = 1;
3779                 if (tr32(TG3PCI_DUAL_MAC_CTRL) & DUAL_MAC_CTRL_ID)
3780                         port_a = 0;
3781
3782                 /* preserve bits 0-11,13,14 for signal pre-emphasis */
3783                 /* preserve bits 20-23 for voltage regulator */
3784                 serdes_cfg = tr32(MAC_SERDES_CFG) & 0x00f06fff;
3785         }
3786
3787         sg_dig_ctrl = tr32(SG_DIG_CTRL);
3788
3789         if (tp->link_config.autoneg != AUTONEG_ENABLE) {
3790                 if (sg_dig_ctrl & SG_DIG_USING_HW_AUTONEG) {
3791                         if (workaround) {
3792                                 u32 val = serdes_cfg;
3793
3794                                 if (port_a)
3795                                         val |= 0xc010000;
3796                                 else
3797                                         val |= 0x4010000;
3798                                 tw32_f(MAC_SERDES_CFG, val);
3799                         }
3800
3801                         tw32_f(SG_DIG_CTRL, SG_DIG_COMMON_SETUP);
3802                 }
3803                 if (mac_status & MAC_STATUS_PCS_SYNCED) {
3804                         tg3_setup_flow_control(tp, 0, 0);
3805                         current_link_up = 1;
3806                 }
3807                 goto out;
3808         }
3809
3810         /* Want auto-negotiation.  */
3811         expected_sg_dig_ctrl = SG_DIG_USING_HW_AUTONEG | SG_DIG_COMMON_SETUP;
3812
3813         flowctrl = tg3_advert_flowctrl_1000X(tp->link_config.flowctrl);
3814         if (flowctrl & ADVERTISE_1000XPAUSE)
3815                 expected_sg_dig_ctrl |= SG_DIG_PAUSE_CAP;
3816         if (flowctrl & ADVERTISE_1000XPSE_ASYM)
3817                 expected_sg_dig_ctrl |= SG_DIG_ASYM_PAUSE;
3818
3819         if (sg_dig_ctrl != expected_sg_dig_ctrl) {
3820                 if ((tp->tg3_flags2 & TG3_FLG2_PARALLEL_DETECT) &&
3821                     tp->serdes_counter &&
3822                     ((mac_status & (MAC_STATUS_PCS_SYNCED |
3823                                     MAC_STATUS_RCVD_CFG)) ==
3824                      MAC_STATUS_PCS_SYNCED)) {
3825                         tp->serdes_counter--;
3826                         current_link_up = 1;
3827                         goto out;
3828                 }
3829 restart_autoneg:
3830                 if (workaround)
3831                         tw32_f(MAC_SERDES_CFG, serdes_cfg | 0xc011000);
3832                 tw32_f(SG_DIG_CTRL, expected_sg_dig_ctrl | SG_DIG_SOFT_RESET);
3833                 udelay(5);
3834                 tw32_f(SG_DIG_CTRL, expected_sg_dig_ctrl);
3835
3836                 tp->serdes_counter = SERDES_AN_TIMEOUT_5704S;
3837                 tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
3838         } else if (mac_status & (MAC_STATUS_PCS_SYNCED |
3839                                  MAC_STATUS_SIGNAL_DET)) {
3840                 sg_dig_status = tr32(SG_DIG_STATUS);
3841                 mac_status = tr32(MAC_STATUS);
3842
3843                 if ((sg_dig_status & SG_DIG_AUTONEG_COMPLETE) &&
3844                     (mac_status & MAC_STATUS_PCS_SYNCED)) {
3845                         u32 local_adv = 0, remote_adv = 0;
3846
3847                         if (sg_dig_ctrl & SG_DIG_PAUSE_CAP)
3848                                 local_adv |= ADVERTISE_1000XPAUSE;
3849                         if (sg_dig_ctrl & SG_DIG_ASYM_PAUSE)
3850                                 local_adv |= ADVERTISE_1000XPSE_ASYM;
3851
3852                         if (sg_dig_status & SG_DIG_PARTNER_PAUSE_CAPABLE)
3853                                 remote_adv |= LPA_1000XPAUSE;
3854                         if (sg_dig_status & SG_DIG_PARTNER_ASYM_PAUSE)
3855                                 remote_adv |= LPA_1000XPAUSE_ASYM;
3856
3857                         tg3_setup_flow_control(tp, local_adv, remote_adv);
3858                         current_link_up = 1;
3859                         tp->serdes_counter = 0;
3860                         tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
3861                 } else if (!(sg_dig_status & SG_DIG_AUTONEG_COMPLETE)) {
3862                         if (tp->serdes_counter)
3863                                 tp->serdes_counter--;
3864                         else {
3865                                 if (workaround) {
3866                                         u32 val = serdes_cfg;
3867
3868                                         if (port_a)
3869                                                 val |= 0xc010000;
3870                                         else
3871                                                 val |= 0x4010000;
3872
3873                                         tw32_f(MAC_SERDES_CFG, val);
3874                                 }
3875
3876                                 tw32_f(SG_DIG_CTRL, SG_DIG_COMMON_SETUP);
3877                                 udelay(40);
3878
3879                                 /* Link parallel detection - link is up */
3880                                 /* only if we have PCS_SYNC and not */
3881                                 /* receiving config code words */
3882                                 mac_status = tr32(MAC_STATUS);
3883                                 if ((mac_status & MAC_STATUS_PCS_SYNCED) &&
3884                                     !(mac_status & MAC_STATUS_RCVD_CFG)) {
3885                                         tg3_setup_flow_control(tp, 0, 0);
3886                                         current_link_up = 1;
3887                                         tp->tg3_flags2 |=
3888                                                 TG3_FLG2_PARALLEL_DETECT;
3889                                         tp->serdes_counter =
3890                                                 SERDES_PARALLEL_DET_TIMEOUT;
3891                                 } else
3892                                         goto restart_autoneg;
3893                         }
3894                 }
3895         } else {
3896                 tp->serdes_counter = SERDES_AN_TIMEOUT_5704S;
3897                 tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
3898         }
3899
3900 out:
3901         return current_link_up;
3902 }
3903
3904 static int tg3_setup_fiber_by_hand(struct tg3 *tp, u32 mac_status)
3905 {
3906         int current_link_up = 0;
3907
3908         if (!(mac_status & MAC_STATUS_PCS_SYNCED))
3909                 goto out;
3910
3911         if (tp->link_config.autoneg == AUTONEG_ENABLE) {
3912                 u32 txflags, rxflags;
3913                 int i;
3914
3915                 if (fiber_autoneg(tp, &txflags, &rxflags)) {
3916                         u32 local_adv = 0, remote_adv = 0;
3917
3918                         if (txflags & ANEG_CFG_PS1)
3919                                 local_adv |= ADVERTISE_1000XPAUSE;
3920                         if (txflags & ANEG_CFG_PS2)
3921                                 local_adv |= ADVERTISE_1000XPSE_ASYM;
3922
3923                         if (rxflags & MR_LP_ADV_SYM_PAUSE)
3924                                 remote_adv |= LPA_1000XPAUSE;
3925                         if (rxflags & MR_LP_ADV_ASYM_PAUSE)
3926                                 remote_adv |= LPA_1000XPAUSE_ASYM;
3927
3928                         tg3_setup_flow_control(tp, local_adv, remote_adv);
3929
3930                         current_link_up = 1;
3931                 }
3932                 for (i = 0; i < 30; i++) {
3933                         udelay(20);
3934                         tw32_f(MAC_STATUS,
3935                                (MAC_STATUS_SYNC_CHANGED |
3936                                 MAC_STATUS_CFG_CHANGED));
3937                         udelay(40);
3938                         if ((tr32(MAC_STATUS) &
3939                              (MAC_STATUS_SYNC_CHANGED |
3940                               MAC_STATUS_CFG_CHANGED)) == 0)
3941                                 break;
3942                 }
3943
3944                 mac_status = tr32(MAC_STATUS);
3945                 if (current_link_up == 0 &&
3946                     (mac_status & MAC_STATUS_PCS_SYNCED) &&
3947                     !(mac_status & MAC_STATUS_RCVD_CFG))
3948                         current_link_up = 1;
3949         } else {
3950                 tg3_setup_flow_control(tp, 0, 0);
3951
3952                 /* Forcing 1000FD link up. */
3953                 current_link_up = 1;
3954
3955                 tw32_f(MAC_MODE, (tp->mac_mode | MAC_MODE_SEND_CONFIGS));
3956                 udelay(40);
3957
3958                 tw32_f(MAC_MODE, tp->mac_mode);
3959                 udelay(40);
3960         }
3961
3962 out:
3963         return current_link_up;
3964 }
3965
3966 static int tg3_setup_fiber_phy(struct tg3 *tp, int force_reset)
3967 {
3968         u32 orig_pause_cfg;
3969         u16 orig_active_speed;
3970         u8 orig_active_duplex;
3971         u32 mac_status;
3972         int current_link_up;
3973         int i;
3974
3975         orig_pause_cfg = tp->link_config.active_flowctrl;
3976         orig_active_speed = tp->link_config.active_speed;
3977         orig_active_duplex = tp->link_config.active_duplex;
3978
3979         if (!(tp->tg3_flags2 & TG3_FLG2_HW_AUTONEG) &&
3980             netif_carrier_ok(tp->dev) &&
3981             (tp->tg3_flags & TG3_FLAG_INIT_COMPLETE)) {
3982                 mac_status = tr32(MAC_STATUS);
3983                 mac_status &= (MAC_STATUS_PCS_SYNCED |
3984                                MAC_STATUS_SIGNAL_DET |
3985                                MAC_STATUS_CFG_CHANGED |
3986                                MAC_STATUS_RCVD_CFG);
3987                 if (mac_status == (MAC_STATUS_PCS_SYNCED |
3988                                    MAC_STATUS_SIGNAL_DET)) {
3989                         tw32_f(MAC_STATUS, (MAC_STATUS_SYNC_CHANGED |
3990                                             MAC_STATUS_CFG_CHANGED));
3991                         return 0;
3992                 }
3993         }
3994
3995         tw32_f(MAC_TX_AUTO_NEG, 0);
3996
3997         tp->mac_mode &= ~(MAC_MODE_PORT_MODE_MASK | MAC_MODE_HALF_DUPLEX);
3998         tp->mac_mode |= MAC_MODE_PORT_MODE_TBI;
3999         tw32_f(MAC_MODE, tp->mac_mode);
4000         udelay(40);
4001
4002         if (tp->phy_id == TG3_PHY_ID_BCM8002)
4003                 tg3_init_bcm8002(tp);
4004
4005         /* Enable link change event even when serdes polling.  */
4006         tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
4007         udelay(40);
4008
4009         current_link_up = 0;
4010         mac_status = tr32(MAC_STATUS);
4011
4012         if (tp->tg3_flags2 & TG3_FLG2_HW_AUTONEG)
4013                 current_link_up = tg3_setup_fiber_hw_autoneg(tp, mac_status);
4014         else
4015                 current_link_up = tg3_setup_fiber_by_hand(tp, mac_status);
4016
4017         tp->napi[0].hw_status->status =
4018                 (SD_STATUS_UPDATED |
4019                  (tp->napi[0].hw_status->status & ~SD_STATUS_LINK_CHG));
4020
4021         for (i = 0; i < 100; i++) {
4022                 tw32_f(MAC_STATUS, (MAC_STATUS_SYNC_CHANGED |
4023                                     MAC_STATUS_CFG_CHANGED));
4024                 udelay(5);
4025                 if ((tr32(MAC_STATUS) & (MAC_STATUS_SYNC_CHANGED |
4026                                          MAC_STATUS_CFG_CHANGED |
4027                                          MAC_STATUS_LNKSTATE_CHANGED)) == 0)
4028                         break;
4029         }
4030
4031         mac_status = tr32(MAC_STATUS);
4032         if ((mac_status & MAC_STATUS_PCS_SYNCED) == 0) {
4033                 current_link_up = 0;
4034                 if (tp->link_config.autoneg == AUTONEG_ENABLE &&
4035                     tp->serdes_counter == 0) {
4036                         tw32_f(MAC_MODE, (tp->mac_mode |
4037                                           MAC_MODE_SEND_CONFIGS));
4038                         udelay(1);
4039                         tw32_f(MAC_MODE, tp->mac_mode);
4040                 }
4041         }
4042
4043         if (current_link_up == 1) {
4044                 tp->link_config.active_speed = SPEED_1000;
4045                 tp->link_config.active_duplex = DUPLEX_FULL;
4046                 tw32(MAC_LED_CTRL, (tp->led_ctrl |
4047                                     LED_CTRL_LNKLED_OVERRIDE |
4048                                     LED_CTRL_1000MBPS_ON));
4049         } else {
4050                 tp->link_config.active_speed = SPEED_INVALID;
4051                 tp->link_config.active_duplex = DUPLEX_INVALID;
4052                 tw32(MAC_LED_CTRL, (tp->led_ctrl |
4053                                     LED_CTRL_LNKLED_OVERRIDE |
4054                                     LED_CTRL_TRAFFIC_OVERRIDE));
4055         }
4056
4057         if (current_link_up != netif_carrier_ok(tp->dev)) {
4058                 if (current_link_up)
4059                         netif_carrier_on(tp->dev);
4060                 else
4061                         netif_carrier_off(tp->dev);
4062                 tg3_link_report(tp);
4063         } else {
4064                 u32 now_pause_cfg = tp->link_config.active_flowctrl;
4065                 if (orig_pause_cfg != now_pause_cfg ||
4066                     orig_active_speed != tp->link_config.active_speed ||
4067                     orig_active_duplex != tp->link_config.active_duplex)
4068                         tg3_link_report(tp);
4069         }
4070
4071         return 0;
4072 }
4073
4074 static int tg3_setup_fiber_mii_phy(struct tg3 *tp, int force_reset)
4075 {
4076         int current_link_up, err = 0;
4077         u32 bmsr, bmcr;
4078         u16 current_speed;
4079         u8 current_duplex;
4080         u32 local_adv, remote_adv;
4081
4082         tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
4083         tw32_f(MAC_MODE, tp->mac_mode);
4084         udelay(40);
4085
4086         tw32(MAC_EVENT, 0);
4087
4088         tw32_f(MAC_STATUS,
4089              (MAC_STATUS_SYNC_CHANGED |
4090               MAC_STATUS_CFG_CHANGED |
4091               MAC_STATUS_MI_COMPLETION |
4092               MAC_STATUS_LNKSTATE_CHANGED));
4093         udelay(40);
4094
4095         if (force_reset)
4096                 tg3_phy_reset(tp);
4097
4098         current_link_up = 0;
4099         current_speed = SPEED_INVALID;
4100         current_duplex = DUPLEX_INVALID;
4101
4102         err |= tg3_readphy(tp, MII_BMSR, &bmsr);
4103         err |= tg3_readphy(tp, MII_BMSR, &bmsr);
4104         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714) {
4105                 if (tr32(MAC_TX_STATUS) & TX_STATUS_LINK_UP)
4106                         bmsr |= BMSR_LSTATUS;
4107                 else
4108                         bmsr &= ~BMSR_LSTATUS;
4109         }
4110
4111         err |= tg3_readphy(tp, MII_BMCR, &bmcr);
4112
4113         if ((tp->link_config.autoneg == AUTONEG_ENABLE) && !force_reset &&
4114             (tp->tg3_flags2 & TG3_FLG2_PARALLEL_DETECT)) {
4115                 /* do nothing, just check for link up at the end */
4116         } else if (tp->link_config.autoneg == AUTONEG_ENABLE) {
4117                 u32 adv, new_adv;
4118
4119                 err |= tg3_readphy(tp, MII_ADVERTISE, &adv);
4120                 new_adv = adv & ~(ADVERTISE_1000XFULL | ADVERTISE_1000XHALF |
4121                                   ADVERTISE_1000XPAUSE |
4122                                   ADVERTISE_1000XPSE_ASYM |
4123                                   ADVERTISE_SLCT);
4124
4125                 new_adv |= tg3_advert_flowctrl_1000X(tp->link_config.flowctrl);
4126
4127                 if (tp->link_config.advertising & ADVERTISED_1000baseT_Half)
4128                         new_adv |= ADVERTISE_1000XHALF;
4129                 if (tp->link_config.advertising & ADVERTISED_1000baseT_Full)
4130                         new_adv |= ADVERTISE_1000XFULL;
4131
4132                 if ((new_adv != adv) || !(bmcr & BMCR_ANENABLE)) {
4133                         tg3_writephy(tp, MII_ADVERTISE, new_adv);
4134                         bmcr |= BMCR_ANENABLE | BMCR_ANRESTART;
4135                         tg3_writephy(tp, MII_BMCR, bmcr);
4136
4137                         tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
4138                         tp->serdes_counter = SERDES_AN_TIMEOUT_5714S;
4139                         tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
4140
4141                         return err;
4142                 }
4143         } else {
4144                 u32 new_bmcr;
4145
4146                 bmcr &= ~BMCR_SPEED1000;
4147                 new_bmcr = bmcr & ~(BMCR_ANENABLE | BMCR_FULLDPLX);
4148
4149                 if (tp->link_config.duplex == DUPLEX_FULL)
4150                         new_bmcr |= BMCR_FULLDPLX;
4151
4152                 if (new_bmcr != bmcr) {
4153                         /* BMCR_SPEED1000 is a reserved bit that needs
4154                          * to be set on write.
4155                          */
4156                         new_bmcr |= BMCR_SPEED1000;
4157
4158                         /* Force a linkdown */
4159                         if (netif_carrier_ok(tp->dev)) {
4160                                 u32 adv;
4161
4162                                 err |= tg3_readphy(tp, MII_ADVERTISE, &adv);
4163                                 adv &= ~(ADVERTISE_1000XFULL |
4164                                          ADVERTISE_1000XHALF |
4165                                          ADVERTISE_SLCT);
4166                                 tg3_writephy(tp, MII_ADVERTISE, adv);
4167                                 tg3_writephy(tp, MII_BMCR, bmcr |
4168                                                            BMCR_ANRESTART |
4169                                                            BMCR_ANENABLE);
4170                                 udelay(10);
4171                                 netif_carrier_off(tp->dev);
4172                         }
4173                         tg3_writephy(tp, MII_BMCR, new_bmcr);
4174                         bmcr = new_bmcr;
4175                         err |= tg3_readphy(tp, MII_BMSR, &bmsr);
4176                         err |= tg3_readphy(tp, MII_BMSR, &bmsr);
4177                         if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
4178                             ASIC_REV_5714) {
4179                                 if (tr32(MAC_TX_STATUS) & TX_STATUS_LINK_UP)
4180                                         bmsr |= BMSR_LSTATUS;
4181                                 else
4182                                         bmsr &= ~BMSR_LSTATUS;
4183                         }
4184                         tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
4185                 }
4186         }
4187
4188         if (bmsr & BMSR_LSTATUS) {
4189                 current_speed = SPEED_1000;
4190                 current_link_up = 1;
4191                 if (bmcr & BMCR_FULLDPLX)
4192                         current_duplex = DUPLEX_FULL;
4193                 else
4194                         current_duplex = DUPLEX_HALF;
4195
4196                 local_adv = 0;
4197                 remote_adv = 0;
4198
4199                 if (bmcr & BMCR_ANENABLE) {
4200                         u32 common;
4201
4202                         err |= tg3_readphy(tp, MII_ADVERTISE, &local_adv);
4203                         err |= tg3_readphy(tp, MII_LPA, &remote_adv);
4204                         common = local_adv & remote_adv;
4205                         if (common & (ADVERTISE_1000XHALF |
4206                                       ADVERTISE_1000XFULL)) {
4207                                 if (common & ADVERTISE_1000XFULL)
4208                                         current_duplex = DUPLEX_FULL;
4209                                 else
4210                                         current_duplex = DUPLEX_HALF;
4211                         } else {
4212                                 current_link_up = 0;
4213                         }
4214                 }
4215         }
4216
4217         if (current_link_up == 1 && current_duplex == DUPLEX_FULL)
4218                 tg3_setup_flow_control(tp, local_adv, remote_adv);
4219
4220         tp->mac_mode &= ~MAC_MODE_HALF_DUPLEX;
4221         if (tp->link_config.active_duplex == DUPLEX_HALF)
4222                 tp->mac_mode |= MAC_MODE_HALF_DUPLEX;
4223
4224         tw32_f(MAC_MODE, tp->mac_mode);
4225         udelay(40);
4226
4227         tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
4228
4229         tp->link_config.active_speed = current_speed;
4230         tp->link_config.active_duplex = current_duplex;
4231
4232         if (current_link_up != netif_carrier_ok(tp->dev)) {
4233                 if (current_link_up)
4234                         netif_carrier_on(tp->dev);
4235                 else {
4236                         netif_carrier_off(tp->dev);
4237                         tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
4238                 }
4239                 tg3_link_report(tp);
4240         }
4241         return err;
4242 }
4243
4244 static void tg3_serdes_parallel_detect(struct tg3 *tp)
4245 {
4246         if (tp->serdes_counter) {
4247                 /* Give autoneg time to complete. */
4248                 tp->serdes_counter--;
4249                 return;
4250         }
4251
4252         if (!netif_carrier_ok(tp->dev) &&
4253             (tp->link_config.autoneg == AUTONEG_ENABLE)) {
4254                 u32 bmcr;
4255
4256                 tg3_readphy(tp, MII_BMCR, &bmcr);
4257                 if (bmcr & BMCR_ANENABLE) {
4258                         u32 phy1, phy2;
4259
4260                         /* Select shadow register 0x1f */
4261                         tg3_writephy(tp, 0x1c, 0x7c00);
4262                         tg3_readphy(tp, 0x1c, &phy1);
4263
4264                         /* Select expansion interrupt status register */
4265                         tg3_writephy(tp, 0x17, 0x0f01);
4266                         tg3_readphy(tp, 0x15, &phy2);
4267                         tg3_readphy(tp, 0x15, &phy2);
4268
4269                         if ((phy1 & 0x10) && !(phy2 & 0x20)) {
4270                                 /* We have signal detect and not receiving
4271                                  * config code words, link is up by parallel
4272                                  * detection.
4273                                  */
4274
4275                                 bmcr &= ~BMCR_ANENABLE;
4276                                 bmcr |= BMCR_SPEED1000 | BMCR_FULLDPLX;
4277                                 tg3_writephy(tp, MII_BMCR, bmcr);
4278                                 tp->tg3_flags2 |= TG3_FLG2_PARALLEL_DETECT;
4279                         }
4280                 }
4281         } else if (netif_carrier_ok(tp->dev) &&
4282                    (tp->link_config.autoneg == AUTONEG_ENABLE) &&
4283                    (tp->tg3_flags2 & TG3_FLG2_PARALLEL_DETECT)) {
4284                 u32 phy2;
4285
4286                 /* Select expansion interrupt status register */
4287                 tg3_writephy(tp, 0x17, 0x0f01);
4288                 tg3_readphy(tp, 0x15, &phy2);
4289                 if (phy2 & 0x20) {
4290                         u32 bmcr;
4291
4292                         /* Config code words received, turn on autoneg. */
4293                         tg3_readphy(tp, MII_BMCR, &bmcr);
4294                         tg3_writephy(tp, MII_BMCR, bmcr | BMCR_ANENABLE);
4295
4296                         tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
4297
4298                 }
4299         }
4300 }
4301
4302 static int tg3_setup_phy(struct tg3 *tp, int force_reset)
4303 {
4304         int err;
4305
4306         if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)
4307                 err = tg3_setup_fiber_phy(tp, force_reset);
4308         else if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES)
4309                 err = tg3_setup_fiber_mii_phy(tp, force_reset);
4310         else
4311                 err = tg3_setup_copper_phy(tp, force_reset);
4312
4313         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX) {
4314                 u32 val, scale;
4315
4316                 val = tr32(TG3_CPMU_CLCK_STAT) & CPMU_CLCK_STAT_MAC_CLCK_MASK;
4317                 if (val == CPMU_CLCK_STAT_MAC_CLCK_62_5)
4318                         scale = 65;
4319                 else if (val == CPMU_CLCK_STAT_MAC_CLCK_6_25)
4320                         scale = 6;
4321                 else
4322                         scale = 12;
4323
4324                 val = tr32(GRC_MISC_CFG) & ~GRC_MISC_CFG_PRESCALAR_MASK;
4325                 val |= (scale << GRC_MISC_CFG_PRESCALAR_SHIFT);
4326                 tw32(GRC_MISC_CFG, val);
4327         }
4328
4329         if (tp->link_config.active_speed == SPEED_1000 &&
4330             tp->link_config.active_duplex == DUPLEX_HALF)
4331                 tw32(MAC_TX_LENGTHS,
4332                      ((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
4333                       (6 << TX_LENGTHS_IPG_SHIFT) |
4334                       (0xff << TX_LENGTHS_SLOT_TIME_SHIFT)));
4335         else
4336                 tw32(MAC_TX_LENGTHS,
4337                      ((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
4338                       (6 << TX_LENGTHS_IPG_SHIFT) |
4339                       (32 << TX_LENGTHS_SLOT_TIME_SHIFT)));
4340
4341         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
4342                 if (netif_carrier_ok(tp->dev)) {
4343                         tw32(HOSTCC_STAT_COAL_TICKS,
4344                              tp->coal.stats_block_coalesce_usecs);
4345                 } else {
4346                         tw32(HOSTCC_STAT_COAL_TICKS, 0);
4347                 }
4348         }
4349
4350         if (tp->tg3_flags & TG3_FLAG_ASPM_WORKAROUND) {
4351                 u32 val = tr32(PCIE_PWR_MGMT_THRESH);
4352                 if (!netif_carrier_ok(tp->dev))
4353                         val = (val & ~PCIE_PWR_MGMT_L1_THRESH_MSK) |
4354                               tp->pwrmgmt_thresh;
4355                 else
4356                         val |= PCIE_PWR_MGMT_L1_THRESH_MSK;
4357                 tw32(PCIE_PWR_MGMT_THRESH, val);
4358         }
4359
4360         return err;
4361 }
4362
4363 /* This is called whenever we suspect that the system chipset is re-
4364  * ordering the sequence of MMIO to the tx send mailbox. The symptom
4365  * is bogus tx completions. We try to recover by setting the
4366  * TG3_FLAG_MBOX_WRITE_REORDER flag and resetting the chip later
4367  * in the workqueue.
4368  */
4369 static void tg3_tx_recover(struct tg3 *tp)
4370 {
4371         BUG_ON((tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER) ||
4372                tp->write32_tx_mbox == tg3_write_indirect_mbox);
4373
4374         netdev_warn(tp->dev,
4375                     "The system may be re-ordering memory-mapped I/O "
4376                     "cycles to the network device, attempting to recover. "
4377                     "Please report the problem to the driver maintainer "
4378                     "and include system chipset information.\n");
4379
4380         spin_lock(&tp->lock);
4381         tp->tg3_flags |= TG3_FLAG_TX_RECOVERY_PENDING;
4382         spin_unlock(&tp->lock);
4383 }
4384
4385 static inline u32 tg3_tx_avail(struct tg3_napi *tnapi)
4386 {
4387         smp_mb();
4388         return tnapi->tx_pending -
4389                ((tnapi->tx_prod - tnapi->tx_cons) & (TG3_TX_RING_SIZE - 1));
4390 }
4391
4392 /* Tigon3 never reports partial packet sends.  So we do not
4393  * need special logic to handle SKBs that have not had all
4394  * of their frags sent yet, like SunGEM does.
4395  */
4396 static void tg3_tx(struct tg3_napi *tnapi)
4397 {
4398         struct tg3 *tp = tnapi->tp;
4399         u32 hw_idx = tnapi->hw_status->idx[0].tx_consumer;
4400         u32 sw_idx = tnapi->tx_cons;
4401         struct netdev_queue *txq;
4402         int index = tnapi - tp->napi;
4403
4404         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
4405                 index--;
4406
4407         txq = netdev_get_tx_queue(tp->dev, index);
4408
4409         while (sw_idx != hw_idx) {
4410                 struct ring_info *ri = &tnapi->tx_buffers[sw_idx];
4411                 struct sk_buff *skb = ri->skb;
4412                 int i, tx_bug = 0;
4413
4414                 if (unlikely(skb == NULL)) {
4415                         tg3_tx_recover(tp);
4416                         return;
4417                 }
4418
4419                 pci_unmap_single(tp->pdev,
4420                                  dma_unmap_addr(ri, mapping),
4421                                  skb_headlen(skb),
4422                                  PCI_DMA_TODEVICE);
4423
4424                 ri->skb = NULL;
4425
4426                 sw_idx = NEXT_TX(sw_idx);
4427
4428                 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
4429                         ri = &tnapi->tx_buffers[sw_idx];
4430                         if (unlikely(ri->skb != NULL || sw_idx == hw_idx))
4431                                 tx_bug = 1;
4432
4433                         pci_unmap_page(tp->pdev,
4434                                        dma_unmap_addr(ri, mapping),
4435                                        skb_shinfo(skb)->frags[i].size,
4436                                        PCI_DMA_TODEVICE);
4437                         sw_idx = NEXT_TX(sw_idx);
4438                 }
4439
4440                 dev_kfree_skb(skb);
4441
4442                 if (unlikely(tx_bug)) {
4443                         tg3_tx_recover(tp);
4444                         return;
4445                 }
4446         }
4447
4448         tnapi->tx_cons = sw_idx;
4449
4450         /* Need to make the tx_cons update visible to tg3_start_xmit()
4451          * before checking for netif_queue_stopped().  Without the
4452          * memory barrier, there is a small possibility that tg3_start_xmit()
4453          * will miss it and cause the queue to be stopped forever.
4454          */
4455         smp_mb();
4456
4457         if (unlikely(netif_tx_queue_stopped(txq) &&
4458                      (tg3_tx_avail(tnapi) > TG3_TX_WAKEUP_THRESH(tnapi)))) {
4459                 __netif_tx_lock(txq, smp_processor_id());
4460                 if (netif_tx_queue_stopped(txq) &&
4461                     (tg3_tx_avail(tnapi) > TG3_TX_WAKEUP_THRESH(tnapi)))
4462                         netif_tx_wake_queue(txq);
4463                 __netif_tx_unlock(txq);
4464         }
4465 }
4466
4467 static void tg3_rx_skb_free(struct tg3 *tp, struct ring_info *ri, u32 map_sz)
4468 {
4469         if (!ri->skb)
4470                 return;
4471
4472         pci_unmap_single(tp->pdev, dma_unmap_addr(ri, mapping),
4473                          map_sz, PCI_DMA_FROMDEVICE);
4474         dev_kfree_skb_any(ri->skb);
4475         ri->skb = NULL;
4476 }
4477
4478 /* Returns size of skb allocated or < 0 on error.
4479  *
4480  * We only need to fill in the address because the other members
4481  * of the RX descriptor are invariant, see tg3_init_rings.
4482  *
4483  * Note the purposeful assymetry of cpu vs. chip accesses.  For
4484  * posting buffers we only dirty the first cache line of the RX
4485  * descriptor (containing the address).  Whereas for the RX status
4486  * buffers the cpu only reads the last cacheline of the RX descriptor
4487  * (to fetch the error flags, vlan tag, checksum, and opaque cookie).
4488  */
4489 static int tg3_alloc_rx_skb(struct tg3 *tp, struct tg3_rx_prodring_set *tpr,
4490                             u32 opaque_key, u32 dest_idx_unmasked)
4491 {
4492         struct tg3_rx_buffer_desc *desc;
4493         struct ring_info *map, *src_map;
4494         struct sk_buff *skb;
4495         dma_addr_t mapping;
4496         int skb_size, dest_idx;
4497
4498         src_map = NULL;
4499         switch (opaque_key) {
4500         case RXD_OPAQUE_RING_STD:
4501                 dest_idx = dest_idx_unmasked % TG3_RX_RING_SIZE;
4502                 desc = &tpr->rx_std[dest_idx];
4503                 map = &tpr->rx_std_buffers[dest_idx];
4504                 skb_size = tp->rx_pkt_map_sz;
4505                 break;
4506
4507         case RXD_OPAQUE_RING_JUMBO:
4508                 dest_idx = dest_idx_unmasked % TG3_RX_JUMBO_RING_SIZE;
4509                 desc = &tpr->rx_jmb[dest_idx].std;
4510                 map = &tpr->rx_jmb_buffers[dest_idx];
4511                 skb_size = TG3_RX_JMB_MAP_SZ;
4512                 break;
4513
4514         default:
4515                 return -EINVAL;
4516         }
4517
4518         /* Do not overwrite any of the map or rp information
4519          * until we are sure we can commit to a new buffer.
4520          *
4521          * Callers depend upon this behavior and assume that
4522          * we leave everything unchanged if we fail.
4523          */
4524         skb = netdev_alloc_skb(tp->dev, skb_size + tp->rx_offset);
4525         if (skb == NULL)
4526                 return -ENOMEM;
4527
4528         skb_reserve(skb, tp->rx_offset);
4529
4530         mapping = pci_map_single(tp->pdev, skb->data, skb_size,
4531                                  PCI_DMA_FROMDEVICE);
4532         if (pci_dma_mapping_error(tp->pdev, mapping)) {
4533                 dev_kfree_skb(skb);
4534                 return -EIO;
4535         }
4536
4537         map->skb = skb;
4538         dma_unmap_addr_set(map, mapping, mapping);
4539
4540         desc->addr_hi = ((u64)mapping >> 32);
4541         desc->addr_lo = ((u64)mapping & 0xffffffff);
4542
4543         return skb_size;
4544 }
4545
4546 /* We only need to move over in the address because the other
4547  * members of the RX descriptor are invariant.  See notes above
4548  * tg3_alloc_rx_skb for full details.
4549  */
4550 static void tg3_recycle_rx(struct tg3_napi *tnapi,
4551                            struct tg3_rx_prodring_set *dpr,
4552                            u32 opaque_key, int src_idx,
4553                            u32 dest_idx_unmasked)
4554 {
4555         struct tg3 *tp = tnapi->tp;
4556         struct tg3_rx_buffer_desc *src_desc, *dest_desc;
4557         struct ring_info *src_map, *dest_map;
4558         struct tg3_rx_prodring_set *spr = &tp->prodring[0];
4559         int dest_idx;
4560
4561         switch (opaque_key) {
4562         case RXD_OPAQUE_RING_STD:
4563                 dest_idx = dest_idx_unmasked % TG3_RX_RING_SIZE;
4564                 dest_desc = &dpr->rx_std[dest_idx];
4565                 dest_map = &dpr->rx_std_buffers[dest_idx];
4566                 src_desc = &spr->rx_std[src_idx];
4567                 src_map = &spr->rx_std_buffers[src_idx];
4568                 break;
4569
4570         case RXD_OPAQUE_RING_JUMBO:
4571                 dest_idx = dest_idx_unmasked % TG3_RX_JUMBO_RING_SIZE;
4572                 dest_desc = &dpr->rx_jmb[dest_idx].std;
4573                 dest_map = &dpr->rx_jmb_buffers[dest_idx];
4574                 src_desc = &spr->rx_jmb[src_idx].std;
4575                 src_map = &spr->rx_jmb_buffers[src_idx];
4576                 break;
4577
4578         default:
4579                 return;
4580         }
4581
4582         dest_map->skb = src_map->skb;
4583         dma_unmap_addr_set(dest_map, mapping,
4584                            dma_unmap_addr(src_map, mapping));
4585         dest_desc->addr_hi = src_desc->addr_hi;
4586         dest_desc->addr_lo = src_desc->addr_lo;
4587
4588         /* Ensure that the update to the skb happens after the physical
4589          * addresses have been transferred to the new BD location.
4590          */
4591         smp_wmb();
4592
4593         src_map->skb = NULL;
4594 }
4595
4596 /* The RX ring scheme is composed of multiple rings which post fresh
4597  * buffers to the chip, and one special ring the chip uses to report
4598  * status back to the host.
4599  *
4600  * The special ring reports the status of received packets to the
4601  * host.  The chip does not write into the original descriptor the
4602  * RX buffer was obtained from.  The chip simply takes the original
4603  * descriptor as provided by the host, updates the status and length
4604  * field, then writes this into the next status ring entry.
4605  *
4606  * Each ring the host uses to post buffers to the chip is described
4607  * by a TG3_BDINFO entry in the chips SRAM area.  When a packet arrives,
4608  * it is first placed into the on-chip ram.  When the packet's length
4609  * is known, it walks down the TG3_BDINFO entries to select the ring.
4610  * Each TG3_BDINFO specifies a MAXLEN field and the first TG3_BDINFO
4611  * which is within the range of the new packet's length is chosen.
4612  *
4613  * The "separate ring for rx status" scheme may sound queer, but it makes
4614  * sense from a cache coherency perspective.  If only the host writes
4615  * to the buffer post rings, and only the chip writes to the rx status
4616  * rings, then cache lines never move beyond shared-modified state.
4617  * If both the host and chip were to write into the same ring, cache line
4618  * eviction could occur since both entities want it in an exclusive state.
4619  */
4620 static int tg3_rx(struct tg3_napi *tnapi, int budget)
4621 {
4622         struct tg3 *tp = tnapi->tp;
4623         u32 work_mask, rx_std_posted = 0;
4624         u32 std_prod_idx, jmb_prod_idx;
4625         u32 sw_idx = tnapi->rx_rcb_ptr;
4626         u16 hw_idx;
4627         int received;
4628         struct tg3_rx_prodring_set *tpr = tnapi->prodring;
4629
4630         hw_idx = *(tnapi->rx_rcb_prod_idx);
4631         /*
4632          * We need to order the read of hw_idx and the read of
4633          * the opaque cookie.
4634          */
4635         rmb();
4636         work_mask = 0;
4637         received = 0;
4638         std_prod_idx = tpr->rx_std_prod_idx;
4639         jmb_prod_idx = tpr->rx_jmb_prod_idx;
4640         while (sw_idx != hw_idx && budget > 0) {
4641                 struct ring_info *ri;
4642                 struct tg3_rx_buffer_desc *desc = &tnapi->rx_rcb[sw_idx];
4643                 unsigned int len;
4644                 struct sk_buff *skb;
4645                 dma_addr_t dma_addr;
4646                 u32 opaque_key, desc_idx, *post_ptr;
4647                 bool hw_vlan __maybe_unused = false;
4648                 u16 vtag __maybe_unused = 0;
4649
4650                 desc_idx = desc->opaque & RXD_OPAQUE_INDEX_MASK;
4651                 opaque_key = desc->opaque & RXD_OPAQUE_RING_MASK;
4652                 if (opaque_key == RXD_OPAQUE_RING_STD) {
4653                         ri = &tp->prodring[0].rx_std_buffers[desc_idx];
4654                         dma_addr = dma_unmap_addr(ri, mapping);
4655                         skb = ri->skb;
4656                         post_ptr = &std_prod_idx;
4657                         rx_std_posted++;
4658                 } else if (opaque_key == RXD_OPAQUE_RING_JUMBO) {
4659                         ri = &tp->prodring[0].rx_jmb_buffers[desc_idx];
4660                         dma_addr = dma_unmap_addr(ri, mapping);
4661                         skb = ri->skb;
4662                         post_ptr = &jmb_prod_idx;
4663                 } else
4664                         goto next_pkt_nopost;
4665
4666                 work_mask |= opaque_key;
4667
4668                 if ((desc->err_vlan & RXD_ERR_MASK) != 0 &&
4669                     (desc->err_vlan != RXD_ERR_ODD_NIBBLE_RCVD_MII)) {
4670                 drop_it:
4671                         tg3_recycle_rx(tnapi, tpr, opaque_key,
4672                                        desc_idx, *post_ptr);
4673                 drop_it_no_recycle:
4674                         /* Other statistics kept track of by card. */
4675                         tp->net_stats.rx_dropped++;
4676                         goto next_pkt;
4677                 }
4678
4679                 len = ((desc->idx_len & RXD_LEN_MASK) >> RXD_LEN_SHIFT) -
4680                       ETH_FCS_LEN;
4681
4682                 if (len > TG3_RX_COPY_THRESH(tp)) {
4683                         int skb_size;
4684
4685                         skb_size = tg3_alloc_rx_skb(tp, tpr, opaque_key,
4686                                                     *post_ptr);
4687                         if (skb_size < 0)
4688                                 goto drop_it;
4689
4690                         pci_unmap_single(tp->pdev, dma_addr, skb_size,
4691                                          PCI_DMA_FROMDEVICE);
4692
4693                         /* Ensure that the update to the skb happens
4694                          * after the usage of the old DMA mapping.
4695                          */
4696                         smp_wmb();
4697
4698                         ri->skb = NULL;
4699
4700                         skb_put(skb, len);
4701                 } else {
4702                         struct sk_buff *copy_skb;
4703
4704                         tg3_recycle_rx(tnapi, tpr, opaque_key,
4705                                        desc_idx, *post_ptr);
4706
4707                         copy_skb = netdev_alloc_skb(tp->dev, len + VLAN_HLEN +
4708                                                     TG3_RAW_IP_ALIGN);
4709                         if (copy_skb == NULL)
4710                                 goto drop_it_no_recycle;
4711
4712                         skb_reserve(copy_skb, TG3_RAW_IP_ALIGN + VLAN_HLEN);
4713                         skb_put(copy_skb, len);
4714                         pci_dma_sync_single_for_cpu(tp->pdev, dma_addr, len, PCI_DMA_FROMDEVICE);
4715                         skb_copy_from_linear_data(skb, copy_skb->data, len);
4716                         pci_dma_sync_single_for_device(tp->pdev, dma_addr, len, PCI_DMA_FROMDEVICE);
4717
4718                         /* We'll reuse the original ring buffer. */
4719                         skb = copy_skb;
4720                 }
4721
4722                 if ((tp->tg3_flags & TG3_FLAG_RX_CHECKSUMS) &&
4723                     (desc->type_flags & RXD_FLAG_TCPUDP_CSUM) &&
4724                     (((desc->ip_tcp_csum & RXD_TCPCSUM_MASK)
4725                       >> RXD_TCPCSUM_SHIFT) == 0xffff))
4726                         skb->ip_summed = CHECKSUM_UNNECESSARY;
4727                 else
4728                         skb->ip_summed = CHECKSUM_NONE;
4729
4730                 skb->protocol = eth_type_trans(skb, tp->dev);
4731
4732                 if (len > (tp->dev->mtu + ETH_HLEN) &&
4733                     skb->protocol != htons(ETH_P_8021Q)) {
4734                         dev_kfree_skb(skb);
4735                         goto next_pkt;
4736                 }
4737
4738                 if (desc->type_flags & RXD_FLAG_VLAN &&
4739                     !(tp->rx_mode & RX_MODE_KEEP_VLAN_TAG)) {
4740                         vtag = desc->err_vlan & RXD_VLAN_MASK;
4741 #if TG3_VLAN_TAG_USED
4742                         if (tp->vlgrp)
4743                                 hw_vlan = true;
4744                         else
4745 #endif
4746                         {
4747                                 struct vlan_ethhdr *ve = (struct vlan_ethhdr *)
4748                                                     __skb_push(skb, VLAN_HLEN);
4749
4750                                 memmove(ve, skb->data + VLAN_HLEN,
4751                                         ETH_ALEN * 2);
4752                                 ve->h_vlan_proto = htons(ETH_P_8021Q);
4753                                 ve->h_vlan_TCI = htons(vtag);
4754                         }
4755                 }
4756
4757 #if TG3_VLAN_TAG_USED
4758                 if (hw_vlan)
4759                         vlan_gro_receive(&tnapi->napi, tp->vlgrp, vtag, skb);
4760                 else
4761 #endif
4762                         napi_gro_receive(&tnapi->napi, skb);
4763
4764                 received++;
4765                 budget--;
4766
4767 next_pkt:
4768                 (*post_ptr)++;
4769
4770                 if (unlikely(rx_std_posted >= tp->rx_std_max_post)) {
4771                         tpr->rx_std_prod_idx = std_prod_idx % TG3_RX_RING_SIZE;
4772                         tw32_rx_mbox(TG3_RX_STD_PROD_IDX_REG,
4773                                      tpr->rx_std_prod_idx);
4774                         work_mask &= ~RXD_OPAQUE_RING_STD;
4775                         rx_std_posted = 0;
4776                 }
4777 next_pkt_nopost:
4778                 sw_idx++;
4779                 sw_idx &= (TG3_RX_RCB_RING_SIZE(tp) - 1);
4780
4781                 /* Refresh hw_idx to see if there is new work */
4782                 if (sw_idx == hw_idx) {
4783                         hw_idx = *(tnapi->rx_rcb_prod_idx);
4784                         rmb();
4785                 }
4786         }
4787
4788         /* ACK the status ring. */
4789         tnapi->rx_rcb_ptr = sw_idx;
4790         tw32_rx_mbox(tnapi->consmbox, sw_idx);
4791
4792         /* Refill RX ring(s). */
4793         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS)) {
4794                 if (work_mask & RXD_OPAQUE_RING_STD) {
4795                         tpr->rx_std_prod_idx = std_prod_idx % TG3_RX_RING_SIZE;
4796                         tw32_rx_mbox(TG3_RX_STD_PROD_IDX_REG,
4797                                      tpr->rx_std_prod_idx);
4798                 }
4799                 if (work_mask & RXD_OPAQUE_RING_JUMBO) {
4800                         tpr->rx_jmb_prod_idx = jmb_prod_idx %
4801                                                TG3_RX_JUMBO_RING_SIZE;
4802                         tw32_rx_mbox(TG3_RX_JMB_PROD_IDX_REG,
4803                                      tpr->rx_jmb_prod_idx);
4804                 }
4805                 mmiowb();
4806         } else if (work_mask) {
4807                 /* rx_std_buffers[] and rx_jmb_buffers[] entries must be
4808                  * updated before the producer indices can be updated.
4809                  */
4810                 smp_wmb();
4811
4812                 tpr->rx_std_prod_idx = std_prod_idx % TG3_RX_RING_SIZE;
4813                 tpr->rx_jmb_prod_idx = jmb_prod_idx % TG3_RX_JUMBO_RING_SIZE;
4814
4815                 if (tnapi != &tp->napi[1])
4816                         napi_schedule(&tp->napi[1].napi);
4817         }
4818
4819         return received;
4820 }
4821
4822 static void tg3_poll_link(struct tg3 *tp)
4823 {
4824         /* handle link change and other phy events */
4825         if (!(tp->tg3_flags &
4826               (TG3_FLAG_USE_LINKCHG_REG |
4827                TG3_FLAG_POLL_SERDES))) {
4828                 struct tg3_hw_status *sblk = tp->napi[0].hw_status;
4829
4830                 if (sblk->status & SD_STATUS_LINK_CHG) {
4831                         sblk->status = SD_STATUS_UPDATED |
4832                                        (sblk->status & ~SD_STATUS_LINK_CHG);
4833                         spin_lock(&tp->lock);
4834                         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
4835                                 tw32_f(MAC_STATUS,
4836                                      (MAC_STATUS_SYNC_CHANGED |
4837                                       MAC_STATUS_CFG_CHANGED |
4838                                       MAC_STATUS_MI_COMPLETION |
4839                                       MAC_STATUS_LNKSTATE_CHANGED));
4840                                 udelay(40);
4841                         } else
4842                                 tg3_setup_phy(tp, 0);
4843                         spin_unlock(&tp->lock);
4844                 }
4845         }
4846 }
4847
4848 static int tg3_rx_prodring_xfer(struct tg3 *tp,
4849                                 struct tg3_rx_prodring_set *dpr,
4850                                 struct tg3_rx_prodring_set *spr)
4851 {
4852         u32 si, di, cpycnt, src_prod_idx;
4853         int i, err = 0;
4854
4855         while (1) {
4856                 src_prod_idx = spr->rx_std_prod_idx;
4857
4858                 /* Make sure updates to the rx_std_buffers[] entries and the
4859                  * standard producer index are seen in the correct order.
4860                  */
4861                 smp_rmb();
4862
4863                 if (spr->rx_std_cons_idx == src_prod_idx)
4864                         break;
4865
4866                 if (spr->rx_std_cons_idx < src_prod_idx)
4867                         cpycnt = src_prod_idx - spr->rx_std_cons_idx;
4868                 else
4869                         cpycnt = TG3_RX_RING_SIZE - spr->rx_std_cons_idx;
4870
4871                 cpycnt = min(cpycnt, TG3_RX_RING_SIZE - dpr->rx_std_prod_idx);
4872
4873                 si = spr->rx_std_cons_idx;
4874                 di = dpr->rx_std_prod_idx;
4875
4876                 for (i = di; i < di + cpycnt; i++) {
4877                         if (dpr->rx_std_buffers[i].skb) {
4878                                 cpycnt = i - di;
4879                                 err = -ENOSPC;
4880                                 break;
4881                         }
4882                 }
4883
4884                 if (!cpycnt)
4885                         break;
4886
4887                 /* Ensure that updates to the rx_std_buffers ring and the
4888                  * shadowed hardware producer ring from tg3_recycle_skb() are
4889                  * ordered correctly WRT the skb check above.
4890                  */
4891                 smp_rmb();
4892
4893                 memcpy(&dpr->rx_std_buffers[di],
4894                        &spr->rx_std_buffers[si],
4895                        cpycnt * sizeof(struct ring_info));
4896
4897                 for (i = 0; i < cpycnt; i++, di++, si++) {
4898                         struct tg3_rx_buffer_desc *sbd, *dbd;
4899                         sbd = &spr->rx_std[si];
4900                         dbd = &dpr->rx_std[di];
4901                         dbd->addr_hi = sbd->addr_hi;
4902                         dbd->addr_lo = sbd->addr_lo;
4903                 }
4904
4905                 spr->rx_std_cons_idx = (spr->rx_std_cons_idx + cpycnt) %
4906                                        TG3_RX_RING_SIZE;
4907                 dpr->rx_std_prod_idx = (dpr->rx_std_prod_idx + cpycnt) %
4908                                        TG3_RX_RING_SIZE;
4909         }
4910
4911         while (1) {
4912                 src_prod_idx = spr->rx_jmb_prod_idx;
4913
4914                 /* Make sure updates to the rx_jmb_buffers[] entries and
4915                  * the jumbo producer index are seen in the correct order.
4916                  */
4917                 smp_rmb();
4918
4919                 if (spr->rx_jmb_cons_idx == src_prod_idx)
4920                         break;
4921
4922                 if (spr->rx_jmb_cons_idx < src_prod_idx)
4923                         cpycnt = src_prod_idx - spr->rx_jmb_cons_idx;
4924                 else
4925                         cpycnt = TG3_RX_JUMBO_RING_SIZE - spr->rx_jmb_cons_idx;
4926
4927                 cpycnt = min(cpycnt,
4928                              TG3_RX_JUMBO_RING_SIZE - dpr->rx_jmb_prod_idx);
4929
4930                 si = spr->rx_jmb_cons_idx;
4931                 di = dpr->rx_jmb_prod_idx;
4932
4933                 for (i = di; i < di + cpycnt; i++) {
4934                         if (dpr->rx_jmb_buffers[i].skb) {
4935                                 cpycnt = i - di;
4936                                 err = -ENOSPC;
4937                                 break;
4938                         }
4939                 }
4940
4941                 if (!cpycnt)
4942                         break;
4943
4944                 /* Ensure that updates to the rx_jmb_buffers ring and the
4945                  * shadowed hardware producer ring from tg3_recycle_skb() are
4946                  * ordered correctly WRT the skb check above.
4947                  */
4948                 smp_rmb();
4949
4950                 memcpy(&dpr->rx_jmb_buffers[di],
4951                        &spr->rx_jmb_buffers[si],
4952                        cpycnt * sizeof(struct ring_info));
4953
4954                 for (i = 0; i < cpycnt; i++, di++, si++) {
4955                         struct tg3_rx_buffer_desc *sbd, *dbd;
4956                         sbd = &spr->rx_jmb[si].std;
4957                         dbd = &dpr->rx_jmb[di].std;
4958                         dbd->addr_hi = sbd->addr_hi;
4959                         dbd->addr_lo = sbd->addr_lo;
4960                 }
4961
4962                 spr->rx_jmb_cons_idx = (spr->rx_jmb_cons_idx + cpycnt) %
4963                                        TG3_RX_JUMBO_RING_SIZE;
4964                 dpr->rx_jmb_prod_idx = (dpr->rx_jmb_prod_idx + cpycnt) %
4965                                        TG3_RX_JUMBO_RING_SIZE;
4966         }
4967
4968         return err;
4969 }
4970
4971 static int tg3_poll_work(struct tg3_napi *tnapi, int work_done, int budget)
4972 {
4973         struct tg3 *tp = tnapi->tp;
4974
4975         /* run TX completion thread */
4976         if (tnapi->hw_status->idx[0].tx_consumer != tnapi->tx_cons) {
4977                 tg3_tx(tnapi);
4978                 if (unlikely(tp->tg3_flags & TG3_FLAG_TX_RECOVERY_PENDING))
4979                         return work_done;
4980         }
4981
4982         /* run RX thread, within the bounds set by NAPI.
4983          * All RX "locking" is done by ensuring outside
4984          * code synchronizes with tg3->napi.poll()
4985          */
4986         if (*(tnapi->rx_rcb_prod_idx) != tnapi->rx_rcb_ptr)
4987                 work_done += tg3_rx(tnapi, budget - work_done);
4988
4989         if ((tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS) && tnapi == &tp->napi[1]) {
4990                 struct tg3_rx_prodring_set *dpr = &tp->prodring[0];
4991                 int i, err = 0;
4992                 u32 std_prod_idx = dpr->rx_std_prod_idx;
4993                 u32 jmb_prod_idx = dpr->rx_jmb_prod_idx;
4994
4995                 for (i = 1; i < tp->irq_cnt; i++)
4996                         err |= tg3_rx_prodring_xfer(tp, dpr,
4997                                                     tp->napi[i].prodring);
4998
4999                 wmb();
5000
5001                 if (std_prod_idx != dpr->rx_std_prod_idx)
5002                         tw32_rx_mbox(TG3_RX_STD_PROD_IDX_REG,
5003                                      dpr->rx_std_prod_idx);
5004
5005                 if (jmb_prod_idx != dpr->rx_jmb_prod_idx)
5006                         tw32_rx_mbox(TG3_RX_JMB_PROD_IDX_REG,
5007                                      dpr->rx_jmb_prod_idx);
5008
5009                 mmiowb();
5010
5011                 if (err)
5012                         tw32_f(HOSTCC_MODE, tp->coal_now);
5013         }
5014
5015         return work_done;
5016 }
5017
5018 static int tg3_poll_msix(struct napi_struct *napi, int budget)
5019 {
5020         struct tg3_napi *tnapi = container_of(napi, struct tg3_napi, napi);
5021         struct tg3 *tp = tnapi->tp;
5022         int work_done = 0;
5023         struct tg3_hw_status *sblk = tnapi->hw_status;
5024
5025         while (1) {
5026                 work_done = tg3_poll_work(tnapi, work_done, budget);
5027
5028                 if (unlikely(tp->tg3_flags & TG3_FLAG_TX_RECOVERY_PENDING))
5029                         goto tx_recovery;
5030
5031                 if (unlikely(work_done >= budget))
5032                         break;
5033
5034                 /* tp->last_tag is used in tg3_int_reenable() below
5035                  * to tell the hw how much work has been processed,
5036                  * so we must read it before checking for more work.
5037                  */
5038                 tnapi->last_tag = sblk->status_tag;
5039                 tnapi->last_irq_tag = tnapi->last_tag;
5040                 rmb();
5041
5042                 /* check for RX/TX work to do */
5043                 if (likely(sblk->idx[0].tx_consumer == tnapi->tx_cons &&
5044                            *(tnapi->rx_rcb_prod_idx) == tnapi->rx_rcb_ptr)) {
5045                         napi_complete(napi);
5046                         /* Reenable interrupts. */
5047                         tw32_mailbox(tnapi->int_mbox, tnapi->last_tag << 24);
5048                         mmiowb();
5049                         break;
5050                 }
5051         }
5052
5053         return work_done;
5054
5055 tx_recovery:
5056         /* work_done is guaranteed to be less than budget. */
5057         napi_complete(napi);
5058         schedule_work(&tp->reset_task);
5059         return work_done;
5060 }
5061
5062 static int tg3_poll(struct napi_struct *napi, int budget)
5063 {
5064         struct tg3_napi *tnapi = container_of(napi, struct tg3_napi, napi);
5065         struct tg3 *tp = tnapi->tp;
5066         int work_done = 0;
5067         struct tg3_hw_status *sblk = tnapi->hw_status;
5068
5069         while (1) {
5070                 tg3_poll_link(tp);
5071
5072                 work_done = tg3_poll_work(tnapi, work_done, budget);
5073
5074                 if (unlikely(tp->tg3_flags & TG3_FLAG_TX_RECOVERY_PENDING))
5075                         goto tx_recovery;
5076
5077                 if (unlikely(work_done >= budget))
5078                         break;
5079
5080                 if (tp->tg3_flags & TG3_FLAG_TAGGED_STATUS) {
5081                         /* tp->last_tag is used in tg3_int_reenable() below
5082                          * to tell the hw how much work has been processed,
5083                          * so we must read it before checking for more work.
5084                          */
5085                         tnapi->last_tag = sblk->status_tag;
5086                         tnapi->last_irq_tag = tnapi->last_tag;
5087                         rmb();
5088                 } else
5089                         sblk->status &= ~SD_STATUS_UPDATED;
5090
5091                 if (likely(!tg3_has_work(tnapi))) {
5092                         napi_complete(napi);
5093                         tg3_int_reenable(tnapi);
5094                         break;
5095                 }
5096         }
5097
5098         return work_done;
5099
5100 tx_recovery:
5101         /* work_done is guaranteed to be less than budget. */
5102         napi_complete(napi);
5103         schedule_work(&tp->reset_task);
5104         return work_done;
5105 }
5106
5107 static void tg3_irq_quiesce(struct tg3 *tp)
5108 {
5109         int i;
5110
5111         BUG_ON(tp->irq_sync);
5112
5113         tp->irq_sync = 1;
5114         smp_mb();
5115
5116         for (i = 0; i < tp->irq_cnt; i++)
5117                 synchronize_irq(tp->napi[i].irq_vec);
5118 }
5119
5120 static inline int tg3_irq_sync(struct tg3 *tp)
5121 {
5122         return tp->irq_sync;
5123 }
5124
5125 /* Fully shutdown all tg3 driver activity elsewhere in the system.
5126  * If irq_sync is non-zero, then the IRQ handler must be synchronized
5127  * with as well.  Most of the time, this is not necessary except when
5128  * shutting down the device.
5129  */
5130 static inline void tg3_full_lock(struct tg3 *tp, int irq_sync)
5131 {
5132         spin_lock_bh(&tp->lock);
5133         if (irq_sync)
5134                 tg3_irq_quiesce(tp);
5135 }
5136
5137 static inline void tg3_full_unlock(struct tg3 *tp)
5138 {
5139         spin_unlock_bh(&tp->lock);
5140 }
5141
5142 /* One-shot MSI handler - Chip automatically disables interrupt
5143  * after sending MSI so driver doesn't have to do it.
5144  */
5145 static irqreturn_t tg3_msi_1shot(int irq, void *dev_id)
5146 {
5147         struct tg3_napi *tnapi = dev_id;
5148         struct tg3 *tp = tnapi->tp;
5149
5150         prefetch(tnapi->hw_status);
5151         if (tnapi->rx_rcb)
5152                 prefetch(&tnapi->rx_rcb[tnapi->rx_rcb_ptr]);
5153
5154         if (likely(!tg3_irq_sync(tp)))
5155                 napi_schedule(&tnapi->napi);
5156
5157         return IRQ_HANDLED;
5158 }
5159
5160 /* MSI ISR - No need to check for interrupt sharing and no need to
5161  * flush status block and interrupt mailbox. PCI ordering rules
5162  * guarantee that MSI will arrive after the status block.
5163  */
5164 static irqreturn_t tg3_msi(int irq, void *dev_id)
5165 {
5166         struct tg3_napi *tnapi = dev_id;
5167         struct tg3 *tp = tnapi->tp;
5168
5169         prefetch(tnapi->hw_status);
5170         if (tnapi->rx_rcb)
5171                 prefetch(&tnapi->rx_rcb[tnapi->rx_rcb_ptr]);
5172         /*
5173          * Writing any value to intr-mbox-0 clears PCI INTA# and
5174          * chip-internal interrupt pending events.
5175          * Writing non-zero to intr-mbox-0 additional tells the
5176          * NIC to stop sending us irqs, engaging "in-intr-handler"
5177          * event coalescing.
5178          */
5179         tw32_mailbox(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
5180         if (likely(!tg3_irq_sync(tp)))
5181                 napi_schedule(&tnapi->napi);
5182
5183         return IRQ_RETVAL(1);
5184 }
5185
5186 static irqreturn_t tg3_interrupt(int irq, void *dev_id)
5187 {
5188         struct tg3_napi *tnapi = dev_id;
5189         struct tg3 *tp = tnapi->tp;
5190         struct tg3_hw_status *sblk = tnapi->hw_status;
5191         unsigned int handled = 1;
5192
5193         /* In INTx mode, it is possible for the interrupt to arrive at
5194          * the CPU before the status block posted prior to the interrupt.
5195          * Reading the PCI State register will confirm whether the
5196          * interrupt is ours and will flush the status block.
5197          */
5198         if (unlikely(!(sblk->status & SD_STATUS_UPDATED))) {
5199                 if ((tp->tg3_flags & TG3_FLAG_CHIP_RESETTING) ||
5200                     (tr32(TG3PCI_PCISTATE) & PCISTATE_INT_NOT_ACTIVE)) {
5201                         handled = 0;
5202                         goto out;
5203                 }
5204         }
5205
5206         /*
5207          * Writing any value to intr-mbox-0 clears PCI INTA# and
5208          * chip-internal interrupt pending events.
5209          * Writing non-zero to intr-mbox-0 additional tells the
5210          * NIC to stop sending us irqs, engaging "in-intr-handler"
5211          * event coalescing.
5212          *
5213          * Flush the mailbox to de-assert the IRQ immediately to prevent
5214          * spurious interrupts.  The flush impacts performance but
5215          * excessive spurious interrupts can be worse in some cases.
5216          */
5217         tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
5218         if (tg3_irq_sync(tp))
5219                 goto out;
5220         sblk->status &= ~SD_STATUS_UPDATED;
5221         if (likely(tg3_has_work(tnapi))) {
5222                 prefetch(&tnapi->rx_rcb[tnapi->rx_rcb_ptr]);
5223                 napi_schedule(&tnapi->napi);
5224         } else {
5225                 /* No work, shared interrupt perhaps?  re-enable
5226                  * interrupts, and flush that PCI write
5227                  */
5228                 tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW,
5229                                0x00000000);
5230         }
5231 out:
5232         return IRQ_RETVAL(handled);
5233 }
5234
5235 static irqreturn_t tg3_interrupt_tagged(int irq, void *dev_id)
5236 {
5237         struct tg3_napi *tnapi = dev_id;
5238         struct tg3 *tp = tnapi->tp;
5239         struct tg3_hw_status *sblk = tnapi->hw_status;
5240         unsigned int handled = 1;
5241
5242         /* In INTx mode, it is possible for the interrupt to arrive at
5243          * the CPU before the status block posted prior to the interrupt.
5244          * Reading the PCI State register will confirm whether the
5245          * interrupt is ours and will flush the status block.
5246          */
5247         if (unlikely(sblk->status_tag == tnapi->last_irq_tag)) {
5248                 if ((tp->tg3_flags & TG3_FLAG_CHIP_RESETTING) ||
5249                     (tr32(TG3PCI_PCISTATE) & PCISTATE_INT_NOT_ACTIVE)) {
5250                         handled = 0;
5251                         goto out;
5252                 }
5253         }
5254
5255         /*
5256          * writing any value to intr-mbox-0 clears PCI INTA# and
5257          * chip-internal interrupt pending events.
5258          * writing non-zero to intr-mbox-0 additional tells the
5259          * NIC to stop sending us irqs, engaging "in-intr-handler"
5260          * event coalescing.
5261          *
5262          * Flush the mailbox to de-assert the IRQ immediately to prevent
5263          * spurious interrupts.  The flush impacts performance but
5264          * excessive spurious interrupts can be worse in some cases.
5265          */
5266         tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
5267
5268         /*
5269          * In a shared interrupt configuration, sometimes other devices'
5270          * interrupts will scream.  We record the current status tag here
5271          * so that the above check can report that the screaming interrupts
5272          * are unhandled.  Eventually they will be silenced.
5273          */
5274         tnapi->last_irq_tag = sblk->status_tag;
5275
5276         if (tg3_irq_sync(tp))
5277                 goto out;
5278
5279         prefetch(&tnapi->rx_rcb[tnapi->rx_rcb_ptr]);
5280
5281         napi_schedule(&tnapi->napi);
5282
5283 out:
5284         return IRQ_RETVAL(handled);
5285 }
5286
5287 /* ISR for interrupt test */
5288 static irqreturn_t tg3_test_isr(int irq, void *dev_id)
5289 {
5290         struct tg3_napi *tnapi = dev_id;
5291         struct tg3 *tp = tnapi->tp;
5292         struct tg3_hw_status *sblk = tnapi->hw_status;
5293
5294         if ((sblk->status & SD_STATUS_UPDATED) ||
5295             !(tr32(TG3PCI_PCISTATE) & PCISTATE_INT_NOT_ACTIVE)) {
5296                 tg3_disable_ints(tp);
5297                 return IRQ_RETVAL(1);
5298         }
5299         return IRQ_RETVAL(0);
5300 }
5301
5302 static int tg3_init_hw(struct tg3 *, int);
5303 static int tg3_halt(struct tg3 *, int, int);
5304
5305 /* Restart hardware after configuration changes, self-test, etc.
5306  * Invoked with tp->lock held.
5307  */
5308 static int tg3_restart_hw(struct tg3 *tp, int reset_phy)
5309         __releases(tp->lock)
5310         __acquires(tp->lock)
5311 {
5312         int err;
5313
5314         err = tg3_init_hw(tp, reset_phy);
5315         if (err) {
5316                 netdev_err(tp->dev,
5317                            "Failed to re-initialize device, aborting\n");
5318                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
5319                 tg3_full_unlock(tp);
5320                 del_timer_sync(&tp->timer);
5321                 tp->irq_sync = 0;
5322                 tg3_napi_enable(tp);
5323                 dev_close(tp->dev);
5324                 tg3_full_lock(tp, 0);
5325         }
5326         return err;
5327 }
5328
5329 #ifdef CONFIG_NET_POLL_CONTROLLER
5330 static void tg3_poll_controller(struct net_device *dev)
5331 {
5332         int i;
5333         struct tg3 *tp = netdev_priv(dev);
5334
5335         for (i = 0; i < tp->irq_cnt; i++)
5336                 tg3_interrupt(tp->napi[i].irq_vec, &tp->napi[i]);
5337 }
5338 #endif
5339
5340 static void tg3_reset_task(struct work_struct *work)
5341 {
5342         struct tg3 *tp = container_of(work, struct tg3, reset_task);
5343         int err;
5344         unsigned int restart_timer;
5345
5346         tg3_full_lock(tp, 0);
5347
5348         if (!netif_running(tp->dev)) {
5349                 tg3_full_unlock(tp);
5350                 return;
5351         }
5352
5353         tg3_full_unlock(tp);
5354
5355         tg3_phy_stop(tp);
5356
5357         tg3_netif_stop(tp);
5358
5359         tg3_full_lock(tp, 1);
5360
5361         restart_timer = tp->tg3_flags2 & TG3_FLG2_RESTART_TIMER;
5362         tp->tg3_flags2 &= ~TG3_FLG2_RESTART_TIMER;
5363
5364         if (tp->tg3_flags & TG3_FLAG_TX_RECOVERY_PENDING) {
5365                 tp->write32_tx_mbox = tg3_write32_tx_mbox;
5366                 tp->write32_rx_mbox = tg3_write_flush_reg32;
5367                 tp->tg3_flags |= TG3_FLAG_MBOX_WRITE_REORDER;
5368                 tp->tg3_flags &= ~TG3_FLAG_TX_RECOVERY_PENDING;
5369         }
5370
5371         tg3_halt(tp, RESET_KIND_SHUTDOWN, 0);
5372         err = tg3_init_hw(tp, 1);
5373         if (err)
5374                 goto out;
5375
5376         tg3_netif_start(tp);
5377
5378         if (restart_timer)
5379                 mod_timer(&tp->timer, jiffies + 1);
5380
5381 out:
5382         tg3_full_unlock(tp);
5383
5384         if (!err)
5385                 tg3_phy_start(tp);
5386 }
5387
5388 static void tg3_dump_short_state(struct tg3 *tp)
5389 {
5390         netdev_err(tp->dev, "DEBUG: MAC_TX_STATUS[%08x] MAC_RX_STATUS[%08x]\n",
5391                    tr32(MAC_TX_STATUS), tr32(MAC_RX_STATUS));
5392         netdev_err(tp->dev, "DEBUG: RDMAC_STATUS[%08x] WDMAC_STATUS[%08x]\n",
5393                    tr32(RDMAC_STATUS), tr32(WDMAC_STATUS));
5394 }
5395
5396 static void tg3_tx_timeout(struct net_device *dev)
5397 {
5398         struct tg3 *tp = netdev_priv(dev);
5399
5400         if (netif_msg_tx_err(tp)) {
5401                 netdev_err(dev, "transmit timed out, resetting\n");
5402                 tg3_dump_short_state(tp);
5403         }
5404
5405         schedule_work(&tp->reset_task);
5406 }
5407
5408 /* Test for DMA buffers crossing any 4GB boundaries: 4G, 8G, etc */
5409 static inline int tg3_4g_overflow_test(dma_addr_t mapping, int len)
5410 {
5411         u32 base = (u32) mapping & 0xffffffff;
5412
5413         return ((base > 0xffffdcc0) &&
5414                 (base + len + 8 < base));
5415 }
5416
5417 /* Test for DMA addresses > 40-bit */
5418 static inline int tg3_40bit_overflow_test(struct tg3 *tp, dma_addr_t mapping,
5419                                           int len)
5420 {
5421 #if defined(CONFIG_HIGHMEM) && (BITS_PER_LONG == 64)
5422         if (tp->tg3_flags & TG3_FLAG_40BIT_DMA_BUG)
5423                 return (((u64) mapping + len) > DMA_BIT_MASK(40));
5424         return 0;
5425 #else
5426         return 0;
5427 #endif
5428 }
5429
5430 static void tg3_set_txd(struct tg3_napi *, int, dma_addr_t, int, u32, u32);
5431
5432 /* Workaround 4GB and 40-bit hardware DMA bugs. */
5433 static int tigon3_dma_hwbug_workaround(struct tg3_napi *tnapi,
5434                                        struct sk_buff *skb, u32 last_plus_one,
5435                                        u32 *start, u32 base_flags, u32 mss)
5436 {
5437         struct tg3 *tp = tnapi->tp;
5438         struct sk_buff *new_skb;
5439         dma_addr_t new_addr = 0;
5440         u32 entry = *start;
5441         int i, ret = 0;
5442
5443         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701)
5444                 new_skb = skb_copy(skb, GFP_ATOMIC);
5445         else {
5446                 int more_headroom = 4 - ((unsigned long)skb->data & 3);
5447
5448                 new_skb = skb_copy_expand(skb,
5449                                           skb_headroom(skb) + more_headroom,
5450                                           skb_tailroom(skb), GFP_ATOMIC);
5451         }
5452
5453         if (!new_skb) {
5454                 ret = -1;
5455         } else {
5456                 /* New SKB is guaranteed to be linear. */
5457                 entry = *start;
5458                 new_addr = pci_map_single(tp->pdev, new_skb->data, new_skb->len,
5459                                           PCI_DMA_TODEVICE);
5460                 /* Make sure the mapping succeeded */
5461                 if (pci_dma_mapping_error(tp->pdev, new_addr)) {
5462                         ret = -1;
5463                         dev_kfree_skb(new_skb);
5464                         new_skb = NULL;
5465
5466                 /* Make sure new skb does not cross any 4G boundaries.
5467                  * Drop the packet if it does.
5468                  */
5469                 } else if ((tp->tg3_flags3 & TG3_FLG3_4G_DMA_BNDRY_BUG) &&
5470                             tg3_4g_overflow_test(new_addr, new_skb->len)) {
5471                         pci_unmap_single(tp->pdev, new_addr, new_skb->len,
5472                                          PCI_DMA_TODEVICE);
5473                         ret = -1;
5474                         dev_kfree_skb(new_skb);
5475                         new_skb = NULL;
5476                 } else {
5477                         tg3_set_txd(tnapi, entry, new_addr, new_skb->len,
5478                                     base_flags, 1 | (mss << 1));
5479                         *start = NEXT_TX(entry);
5480                 }
5481         }
5482
5483         /* Now clean up the sw ring entries. */
5484         i = 0;
5485         while (entry != last_plus_one) {
5486                 int len;
5487
5488                 if (i == 0)
5489                         len = skb_headlen(skb);
5490                 else
5491                         len = skb_shinfo(skb)->frags[i-1].size;
5492
5493                 pci_unmap_single(tp->pdev,
5494                                  dma_unmap_addr(&tnapi->tx_buffers[entry],
5495                                                 mapping),
5496                                  len, PCI_DMA_TODEVICE);
5497                 if (i == 0) {
5498                         tnapi->tx_buffers[entry].skb = new_skb;
5499                         dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping,
5500                                            new_addr);
5501                 } else {
5502                         tnapi->tx_buffers[entry].skb = NULL;
5503                 }
5504                 entry = NEXT_TX(entry);
5505                 i++;
5506         }
5507
5508         dev_kfree_skb(skb);
5509
5510         return ret;
5511 }
5512
5513 static void tg3_set_txd(struct tg3_napi *tnapi, int entry,
5514                         dma_addr_t mapping, int len, u32 flags,
5515                         u32 mss_and_is_end)
5516 {
5517         struct tg3_tx_buffer_desc *txd = &tnapi->tx_ring[entry];
5518         int is_end = (mss_and_is_end & 0x1);
5519         u32 mss = (mss_and_is_end >> 1);
5520         u32 vlan_tag = 0;
5521
5522         if (is_end)
5523                 flags |= TXD_FLAG_END;
5524         if (flags & TXD_FLAG_VLAN) {
5525                 vlan_tag = flags >> 16;
5526                 flags &= 0xffff;
5527         }
5528         vlan_tag |= (mss << TXD_MSS_SHIFT);
5529
5530         txd->addr_hi = ((u64) mapping >> 32);
5531         txd->addr_lo = ((u64) mapping & 0xffffffff);
5532         txd->len_flags = (len << TXD_LEN_SHIFT) | flags;
5533         txd->vlan_tag = vlan_tag << TXD_VLAN_TAG_SHIFT;
5534 }
5535
5536 /* hard_start_xmit for devices that don't have any bugs and
5537  * support TG3_FLG2_HW_TSO_2 and TG3_FLG2_HW_TSO_3 only.
5538  */
5539 static netdev_tx_t tg3_start_xmit(struct sk_buff *skb,
5540                                   struct net_device *dev)
5541 {
5542         struct tg3 *tp = netdev_priv(dev);
5543         u32 len, entry, base_flags, mss;
5544         dma_addr_t mapping;
5545         struct tg3_napi *tnapi;
5546         struct netdev_queue *txq;
5547         unsigned int i, last;
5548
5549         txq = netdev_get_tx_queue(dev, skb_get_queue_mapping(skb));
5550         tnapi = &tp->napi[skb_get_queue_mapping(skb)];
5551         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
5552                 tnapi++;
5553
5554         /* We are running in BH disabled context with netif_tx_lock
5555          * and TX reclaim runs via tp->napi.poll inside of a software
5556          * interrupt.  Furthermore, IRQ processing runs lockless so we have
5557          * no IRQ context deadlocks to worry about either.  Rejoice!
5558          */
5559         if (unlikely(tg3_tx_avail(tnapi) <= (skb_shinfo(skb)->nr_frags + 1))) {
5560                 if (!netif_tx_queue_stopped(txq)) {
5561                         netif_tx_stop_queue(txq);
5562
5563                         /* This is a hard error, log it. */
5564                         netdev_err(dev,
5565                                    "BUG! Tx Ring full when queue awake!\n");
5566                 }
5567                 return NETDEV_TX_BUSY;
5568         }
5569
5570         entry = tnapi->tx_prod;
5571         base_flags = 0;
5572         mss = 0;
5573         if ((mss = skb_shinfo(skb)->gso_size) != 0) {
5574                 int tcp_opt_len, ip_tcp_len;
5575                 u32 hdrlen;
5576
5577                 if (skb_header_cloned(skb) &&
5578                     pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) {
5579                         dev_kfree_skb(skb);
5580                         goto out_unlock;
5581                 }
5582
5583                 if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6)
5584                         hdrlen = skb_headlen(skb) - ETH_HLEN;
5585                 else {
5586                         struct iphdr *iph = ip_hdr(skb);
5587
5588                         tcp_opt_len = tcp_optlen(skb);
5589                         ip_tcp_len = ip_hdrlen(skb) + sizeof(struct tcphdr);
5590
5591                         iph->check = 0;
5592                         iph->tot_len = htons(mss + ip_tcp_len + tcp_opt_len);
5593                         hdrlen = ip_tcp_len + tcp_opt_len;
5594                 }
5595
5596                 if (tp->tg3_flags2 & TG3_FLG2_HW_TSO_3) {
5597                         mss |= (hdrlen & 0xc) << 12;
5598                         if (hdrlen & 0x10)
5599                                 base_flags |= 0x00000010;
5600                         base_flags |= (hdrlen & 0x3e0) << 5;
5601                 } else
5602                         mss |= hdrlen << 9;
5603
5604                 base_flags |= (TXD_FLAG_CPU_PRE_DMA |
5605                                TXD_FLAG_CPU_POST_DMA);
5606
5607                 tcp_hdr(skb)->check = 0;
5608
5609         } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
5610                 base_flags |= TXD_FLAG_TCPUDP_CSUM;
5611         }
5612
5613 #if TG3_VLAN_TAG_USED
5614         if (tp->vlgrp != NULL && vlan_tx_tag_present(skb))
5615                 base_flags |= (TXD_FLAG_VLAN |
5616                                (vlan_tx_tag_get(skb) << 16));
5617 #endif
5618
5619         len = skb_headlen(skb);
5620
5621         /* Queue skb data, a.k.a. the main skb fragment. */
5622         mapping = pci_map_single(tp->pdev, skb->data, len, PCI_DMA_TODEVICE);
5623         if (pci_dma_mapping_error(tp->pdev, mapping)) {
5624                 dev_kfree_skb(skb);
5625                 goto out_unlock;
5626         }
5627
5628         tnapi->tx_buffers[entry].skb = skb;
5629         dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping, mapping);
5630
5631         if ((tp->tg3_flags3 & TG3_FLG3_USE_JUMBO_BDFLAG) &&
5632             !mss && skb->len > ETH_DATA_LEN)
5633                 base_flags |= TXD_FLAG_JMB_PKT;
5634
5635         tg3_set_txd(tnapi, entry, mapping, len, base_flags,
5636                     (skb_shinfo(skb)->nr_frags == 0) | (mss << 1));
5637
5638         entry = NEXT_TX(entry);
5639
5640         /* Now loop through additional data fragments, and queue them. */
5641         if (skb_shinfo(skb)->nr_frags > 0) {
5642                 last = skb_shinfo(skb)->nr_frags - 1;
5643                 for (i = 0; i <= last; i++) {
5644                         skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
5645
5646                         len = frag->size;
5647                         mapping = pci_map_page(tp->pdev,
5648                                                frag->page,
5649                                                frag->page_offset,
5650                                                len, PCI_DMA_TODEVICE);
5651                         if (pci_dma_mapping_error(tp->pdev, mapping))
5652                                 goto dma_error;
5653
5654                         tnapi->tx_buffers[entry].skb = NULL;
5655                         dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping,
5656                                            mapping);
5657
5658                         tg3_set_txd(tnapi, entry, mapping, len,
5659                                     base_flags, (i == last) | (mss << 1));
5660
5661                         entry = NEXT_TX(entry);
5662                 }
5663         }
5664
5665         /* Packets are ready, update Tx producer idx local and on card. */
5666         tw32_tx_mbox(tnapi->prodmbox, entry);
5667
5668         tnapi->tx_prod = entry;
5669         if (unlikely(tg3_tx_avail(tnapi) <= (MAX_SKB_FRAGS + 1))) {
5670                 netif_tx_stop_queue(txq);
5671                 if (tg3_tx_avail(tnapi) > TG3_TX_WAKEUP_THRESH(tnapi))
5672                         netif_tx_wake_queue(txq);
5673         }
5674
5675 out_unlock:
5676         mmiowb();
5677
5678         return NETDEV_TX_OK;
5679
5680 dma_error:
5681         last = i;
5682         entry = tnapi->tx_prod;
5683         tnapi->tx_buffers[entry].skb = NULL;
5684         pci_unmap_single(tp->pdev,
5685                          dma_unmap_addr(&tnapi->tx_buffers[entry], mapping),
5686                          skb_headlen(skb),
5687                          PCI_DMA_TODEVICE);
5688         for (i = 0; i <= last; i++) {
5689                 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
5690                 entry = NEXT_TX(entry);
5691
5692                 pci_unmap_page(tp->pdev,
5693                                dma_unmap_addr(&tnapi->tx_buffers[entry],
5694                                               mapping),
5695                                frag->size, PCI_DMA_TODEVICE);
5696         }
5697
5698         dev_kfree_skb(skb);
5699         return NETDEV_TX_OK;
5700 }
5701
5702 static netdev_tx_t tg3_start_xmit_dma_bug(struct sk_buff *,
5703                                           struct net_device *);
5704
5705 /* Use GSO to workaround a rare TSO bug that may be triggered when the
5706  * TSO header is greater than 80 bytes.
5707  */
5708 static int tg3_tso_bug(struct tg3 *tp, struct sk_buff *skb)
5709 {
5710         struct sk_buff *segs, *nskb;
5711         u32 frag_cnt_est = skb_shinfo(skb)->gso_segs * 3;
5712
5713         /* Estimate the number of fragments in the worst case */
5714         if (unlikely(tg3_tx_avail(&tp->napi[0]) <= frag_cnt_est)) {
5715                 netif_stop_queue(tp->dev);
5716                 if (tg3_tx_avail(&tp->napi[0]) <= frag_cnt_est)
5717                         return NETDEV_TX_BUSY;
5718
5719                 netif_wake_queue(tp->dev);
5720         }
5721
5722         segs = skb_gso_segment(skb, tp->dev->features & ~NETIF_F_TSO);
5723         if (IS_ERR(segs))
5724                 goto tg3_tso_bug_end;
5725
5726         do {
5727                 nskb = segs;
5728                 segs = segs->next;
5729                 nskb->next = NULL;
5730                 tg3_start_xmit_dma_bug(nskb, tp->dev);
5731         } while (segs);
5732
5733 tg3_tso_bug_end:
5734         dev_kfree_skb(skb);
5735
5736         return NETDEV_TX_OK;
5737 }
5738
5739 /* hard_start_xmit for devices that have the 4G bug and/or 40-bit bug and
5740  * support TG3_FLG2_HW_TSO_1 or firmware TSO only.
5741  */
5742 static netdev_tx_t tg3_start_xmit_dma_bug(struct sk_buff *skb,
5743                                           struct net_device *dev)
5744 {
5745         struct tg3 *tp = netdev_priv(dev);
5746         u32 len, entry, base_flags, mss;
5747         int would_hit_hwbug;
5748         dma_addr_t mapping;
5749         struct tg3_napi *tnapi;
5750         struct netdev_queue *txq;
5751         unsigned int i, last;
5752
5753         txq = netdev_get_tx_queue(dev, skb_get_queue_mapping(skb));
5754         tnapi = &tp->napi[skb_get_queue_mapping(skb)];
5755         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
5756                 tnapi++;
5757
5758         /* We are running in BH disabled context with netif_tx_lock
5759          * and TX reclaim runs via tp->napi.poll inside of a software
5760          * interrupt.  Furthermore, IRQ processing runs lockless so we have
5761          * no IRQ context deadlocks to worry about either.  Rejoice!
5762          */
5763         if (unlikely(tg3_tx_avail(tnapi) <= (skb_shinfo(skb)->nr_frags + 1))) {
5764                 if (!netif_tx_queue_stopped(txq)) {
5765                         netif_tx_stop_queue(txq);
5766
5767                         /* This is a hard error, log it. */
5768                         netdev_err(dev,
5769                                    "BUG! Tx Ring full when queue awake!\n");
5770                 }
5771                 return NETDEV_TX_BUSY;
5772         }
5773
5774         entry = tnapi->tx_prod;
5775         base_flags = 0;
5776         if (skb->ip_summed == CHECKSUM_PARTIAL)
5777                 base_flags |= TXD_FLAG_TCPUDP_CSUM;
5778
5779         if ((mss = skb_shinfo(skb)->gso_size) != 0) {
5780                 struct iphdr *iph;
5781                 u32 tcp_opt_len, ip_tcp_len, hdr_len;
5782
5783                 if (skb_header_cloned(skb) &&
5784                     pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) {
5785                         dev_kfree_skb(skb);
5786                         goto out_unlock;
5787                 }
5788
5789                 tcp_opt_len = tcp_optlen(skb);
5790                 ip_tcp_len = ip_hdrlen(skb) + sizeof(struct tcphdr);
5791
5792                 hdr_len = ip_tcp_len + tcp_opt_len;
5793                 if (unlikely((ETH_HLEN + hdr_len) > 80) &&
5794                              (tp->tg3_flags2 & TG3_FLG2_TSO_BUG))
5795                         return tg3_tso_bug(tp, skb);
5796
5797                 base_flags |= (TXD_FLAG_CPU_PRE_DMA |
5798                                TXD_FLAG_CPU_POST_DMA);
5799
5800                 iph = ip_hdr(skb);
5801                 iph->check = 0;
5802                 iph->tot_len = htons(mss + hdr_len);
5803                 if (tp->tg3_flags2 & TG3_FLG2_HW_TSO) {
5804                         tcp_hdr(skb)->check = 0;
5805                         base_flags &= ~TXD_FLAG_TCPUDP_CSUM;
5806                 } else
5807                         tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
5808                                                                  iph->daddr, 0,
5809                                                                  IPPROTO_TCP,
5810                                                                  0);
5811
5812                 if (tp->tg3_flags2 & TG3_FLG2_HW_TSO_3) {
5813                         mss |= (hdr_len & 0xc) << 12;
5814                         if (hdr_len & 0x10)
5815                                 base_flags |= 0x00000010;
5816                         base_flags |= (hdr_len & 0x3e0) << 5;
5817                 } else if (tp->tg3_flags2 & TG3_FLG2_HW_TSO_2)
5818                         mss |= hdr_len << 9;
5819                 else if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_1) ||
5820                          GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
5821                         if (tcp_opt_len || iph->ihl > 5) {
5822                                 int tsflags;
5823
5824                                 tsflags = (iph->ihl - 5) + (tcp_opt_len >> 2);
5825                                 mss |= (tsflags << 11);
5826                         }
5827                 } else {
5828                         if (tcp_opt_len || iph->ihl > 5) {
5829                                 int tsflags;
5830
5831                                 tsflags = (iph->ihl - 5) + (tcp_opt_len >> 2);
5832                                 base_flags |= tsflags << 12;
5833                         }
5834                 }
5835         }
5836 #if TG3_VLAN_TAG_USED
5837         if (tp->vlgrp != NULL && vlan_tx_tag_present(skb))
5838                 base_flags |= (TXD_FLAG_VLAN |
5839                                (vlan_tx_tag_get(skb) << 16));
5840 #endif
5841
5842         if ((tp->tg3_flags3 & TG3_FLG3_USE_JUMBO_BDFLAG) &&
5843             !mss && skb->len > ETH_DATA_LEN)
5844                 base_flags |= TXD_FLAG_JMB_PKT;
5845
5846         len = skb_headlen(skb);
5847
5848         mapping = pci_map_single(tp->pdev, skb->data, len, PCI_DMA_TODEVICE);
5849         if (pci_dma_mapping_error(tp->pdev, mapping)) {
5850                 dev_kfree_skb(skb);
5851                 goto out_unlock;
5852         }
5853
5854         tnapi->tx_buffers[entry].skb = skb;
5855         dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping, mapping);
5856
5857         would_hit_hwbug = 0;
5858
5859         if ((tp->tg3_flags3 & TG3_FLG3_SHORT_DMA_BUG) && len <= 8)
5860                 would_hit_hwbug = 1;
5861
5862         if ((tp->tg3_flags3 & TG3_FLG3_4G_DMA_BNDRY_BUG) &&
5863             tg3_4g_overflow_test(mapping, len))
5864                 would_hit_hwbug = 1;
5865
5866         if ((tp->tg3_flags3 & TG3_FLG3_40BIT_DMA_LIMIT_BUG) &&
5867             tg3_40bit_overflow_test(tp, mapping, len))
5868                 would_hit_hwbug = 1;
5869
5870         if (tp->tg3_flags3 & TG3_FLG3_5701_DMA_BUG)
5871                 would_hit_hwbug = 1;
5872
5873         tg3_set_txd(tnapi, entry, mapping, len, base_flags,
5874                     (skb_shinfo(skb)->nr_frags == 0) | (mss << 1));
5875
5876         entry = NEXT_TX(entry);
5877
5878         /* Now loop through additional data fragments, and queue them. */
5879         if (skb_shinfo(skb)->nr_frags > 0) {
5880                 last = skb_shinfo(skb)->nr_frags - 1;
5881                 for (i = 0; i <= last; i++) {
5882                         skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
5883
5884                         len = frag->size;
5885                         mapping = pci_map_page(tp->pdev,
5886                                                frag->page,
5887                                                frag->page_offset,
5888                                                len, PCI_DMA_TODEVICE);
5889
5890                         tnapi->tx_buffers[entry].skb = NULL;
5891                         dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping,
5892                                            mapping);
5893                         if (pci_dma_mapping_error(tp->pdev, mapping))
5894                                 goto dma_error;
5895
5896                         if ((tp->tg3_flags3 & TG3_FLG3_SHORT_DMA_BUG) &&
5897                             len <= 8)
5898                                 would_hit_hwbug = 1;
5899
5900                         if ((tp->tg3_flags3 & TG3_FLG3_4G_DMA_BNDRY_BUG) &&
5901                             tg3_4g_overflow_test(mapping, len))
5902                                 would_hit_hwbug = 1;
5903
5904                         if ((tp->tg3_flags3 & TG3_FLG3_40BIT_DMA_LIMIT_BUG) &&
5905                             tg3_40bit_overflow_test(tp, mapping, len))
5906                                 would_hit_hwbug = 1;
5907
5908                         if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
5909                                 tg3_set_txd(tnapi, entry, mapping, len,
5910                                             base_flags, (i == last)|(mss << 1));
5911                         else
5912                                 tg3_set_txd(tnapi, entry, mapping, len,
5913                                             base_flags, (i == last));
5914
5915                         entry = NEXT_TX(entry);
5916                 }
5917         }
5918
5919         if (would_hit_hwbug) {
5920                 u32 last_plus_one = entry;
5921                 u32 start;
5922
5923                 start = entry - 1 - skb_shinfo(skb)->nr_frags;
5924                 start &= (TG3_TX_RING_SIZE - 1);
5925
5926                 /* If the workaround fails due to memory/mapping
5927                  * failure, silently drop this packet.
5928                  */
5929                 if (tigon3_dma_hwbug_workaround(tnapi, skb, last_plus_one,
5930                                                 &start, base_flags, mss))
5931                         goto out_unlock;
5932
5933                 entry = start;
5934         }
5935
5936         /* Packets are ready, update Tx producer idx local and on card. */
5937         tw32_tx_mbox(tnapi->prodmbox, entry);
5938
5939         tnapi->tx_prod = entry;
5940         if (unlikely(tg3_tx_avail(tnapi) <= (MAX_SKB_FRAGS + 1))) {
5941                 netif_tx_stop_queue(txq);
5942                 if (tg3_tx_avail(tnapi) > TG3_TX_WAKEUP_THRESH(tnapi))
5943                         netif_tx_wake_queue(txq);
5944         }
5945
5946 out_unlock:
5947         mmiowb();
5948
5949         return NETDEV_TX_OK;
5950
5951 dma_error:
5952         last = i;
5953         entry = tnapi->tx_prod;
5954         tnapi->tx_buffers[entry].skb = NULL;
5955         pci_unmap_single(tp->pdev,
5956                          dma_unmap_addr(&tnapi->tx_buffers[entry], mapping),
5957                          skb_headlen(skb),
5958                          PCI_DMA_TODEVICE);
5959         for (i = 0; i <= last; i++) {
5960                 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
5961                 entry = NEXT_TX(entry);
5962
5963                 pci_unmap_page(tp->pdev,
5964                                dma_unmap_addr(&tnapi->tx_buffers[entry],
5965                                               mapping),
5966                                frag->size, PCI_DMA_TODEVICE);
5967         }
5968
5969         dev_kfree_skb(skb);
5970         return NETDEV_TX_OK;
5971 }
5972
5973 static inline void tg3_set_mtu(struct net_device *dev, struct tg3 *tp,
5974                                int new_mtu)
5975 {
5976         dev->mtu = new_mtu;
5977
5978         if (new_mtu > ETH_DATA_LEN) {
5979                 if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) {
5980                         tp->tg3_flags2 &= ~TG3_FLG2_TSO_CAPABLE;
5981                         ethtool_op_set_tso(dev, 0);
5982                 } else {
5983                         tp->tg3_flags |= TG3_FLAG_JUMBO_RING_ENABLE;
5984                 }
5985         } else {
5986                 if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)
5987                         tp->tg3_flags2 |= TG3_FLG2_TSO_CAPABLE;
5988                 tp->tg3_flags &= ~TG3_FLAG_JUMBO_RING_ENABLE;
5989         }
5990 }
5991
5992 static int tg3_change_mtu(struct net_device *dev, int new_mtu)
5993 {
5994         struct tg3 *tp = netdev_priv(dev);
5995         int err;
5996
5997         if (new_mtu < TG3_MIN_MTU || new_mtu > TG3_MAX_MTU(tp))
5998                 return -EINVAL;
5999
6000         if (!netif_running(dev)) {
6001                 /* We'll just catch it later when the
6002                  * device is up'd.
6003                  */
6004                 tg3_set_mtu(dev, tp, new_mtu);
6005                 return 0;
6006         }
6007
6008         tg3_phy_stop(tp);
6009
6010         tg3_netif_stop(tp);
6011
6012         tg3_full_lock(tp, 1);
6013
6014         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
6015
6016         tg3_set_mtu(dev, tp, new_mtu);
6017
6018         err = tg3_restart_hw(tp, 0);
6019
6020         if (!err)
6021                 tg3_netif_start(tp);
6022
6023         tg3_full_unlock(tp);
6024
6025         if (!err)
6026                 tg3_phy_start(tp);
6027
6028         return err;
6029 }
6030
6031 static void tg3_rx_prodring_free(struct tg3 *tp,
6032                                  struct tg3_rx_prodring_set *tpr)
6033 {
6034         int i;
6035
6036         if (tpr != &tp->prodring[0]) {
6037                 for (i = tpr->rx_std_cons_idx; i != tpr->rx_std_prod_idx;
6038                      i = (i + 1) % TG3_RX_RING_SIZE)
6039                         tg3_rx_skb_free(tp, &tpr->rx_std_buffers[i],
6040                                         tp->rx_pkt_map_sz);
6041
6042                 if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) {
6043                         for (i = tpr->rx_jmb_cons_idx;
6044                              i != tpr->rx_jmb_prod_idx;
6045                              i = (i + 1) % TG3_RX_JUMBO_RING_SIZE) {
6046                                 tg3_rx_skb_free(tp, &tpr->rx_jmb_buffers[i],
6047                                                 TG3_RX_JMB_MAP_SZ);
6048                         }
6049                 }
6050
6051                 return;
6052         }
6053
6054         for (i = 0; i < TG3_RX_RING_SIZE; i++)
6055                 tg3_rx_skb_free(tp, &tpr->rx_std_buffers[i],
6056                                 tp->rx_pkt_map_sz);
6057
6058         if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) {
6059                 for (i = 0; i < TG3_RX_JUMBO_RING_SIZE; i++)
6060                         tg3_rx_skb_free(tp, &tpr->rx_jmb_buffers[i],
6061                                         TG3_RX_JMB_MAP_SZ);
6062         }
6063 }
6064
6065 /* Initialize rx rings for packet processing.
6066  *
6067  * The chip has been shut down and the driver detached from
6068  * the networking, so no interrupts or new tx packets will
6069  * end up in the driver.  tp->{tx,}lock are held and thus
6070  * we may not sleep.
6071  */
6072 static int tg3_rx_prodring_alloc(struct tg3 *tp,
6073                                  struct tg3_rx_prodring_set *tpr)
6074 {
6075         u32 i, rx_pkt_dma_sz;
6076
6077         tpr->rx_std_cons_idx = 0;
6078         tpr->rx_std_prod_idx = 0;
6079         tpr->rx_jmb_cons_idx = 0;
6080         tpr->rx_jmb_prod_idx = 0;
6081
6082         if (tpr != &tp->prodring[0]) {
6083                 memset(&tpr->rx_std_buffers[0], 0, TG3_RX_STD_BUFF_RING_SIZE);
6084                 if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE)
6085                         memset(&tpr->rx_jmb_buffers[0], 0,
6086                                TG3_RX_JMB_BUFF_RING_SIZE);
6087                 goto done;
6088         }
6089
6090         /* Zero out all descriptors. */
6091         memset(tpr->rx_std, 0, TG3_RX_RING_BYTES);
6092
6093         rx_pkt_dma_sz = TG3_RX_STD_DMA_SZ;
6094         if ((tp->tg3_flags2 & TG3_FLG2_5780_CLASS) &&
6095             tp->dev->mtu > ETH_DATA_LEN)
6096                 rx_pkt_dma_sz = TG3_RX_JMB_DMA_SZ;
6097         tp->rx_pkt_map_sz = TG3_RX_DMA_TO_MAP_SZ(rx_pkt_dma_sz);
6098
6099         /* Initialize invariants of the rings, we only set this
6100          * stuff once.  This works because the card does not
6101          * write into the rx buffer posting rings.
6102          */
6103         for (i = 0; i < TG3_RX_RING_SIZE; i++) {
6104                 struct tg3_rx_buffer_desc *rxd;
6105
6106                 rxd = &tpr->rx_std[i];
6107                 rxd->idx_len = rx_pkt_dma_sz << RXD_LEN_SHIFT;
6108                 rxd->type_flags = (RXD_FLAG_END << RXD_FLAGS_SHIFT);
6109                 rxd->opaque = (RXD_OPAQUE_RING_STD |
6110                                (i << RXD_OPAQUE_INDEX_SHIFT));
6111         }
6112
6113         /* Now allocate fresh SKBs for each rx ring. */
6114         for (i = 0; i < tp->rx_pending; i++) {
6115                 if (tg3_alloc_rx_skb(tp, tpr, RXD_OPAQUE_RING_STD, i) < 0) {
6116                         netdev_warn(tp->dev,
6117                                     "Using a smaller RX standard ring. Only "
6118                                     "%d out of %d buffers were allocated "
6119                                     "successfully\n", i, tp->rx_pending);
6120                         if (i == 0)
6121                                 goto initfail;
6122                         tp->rx_pending = i;
6123                         break;
6124                 }
6125         }
6126
6127         if (!(tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE))
6128                 goto done;
6129
6130         memset(tpr->rx_jmb, 0, TG3_RX_JUMBO_RING_BYTES);
6131
6132         if (!(tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE))
6133                 goto done;
6134
6135         for (i = 0; i < TG3_RX_JUMBO_RING_SIZE; i++) {
6136                 struct tg3_rx_buffer_desc *rxd;
6137
6138                 rxd = &tpr->rx_jmb[i].std;
6139                 rxd->idx_len = TG3_RX_JMB_DMA_SZ << RXD_LEN_SHIFT;
6140                 rxd->type_flags = (RXD_FLAG_END << RXD_FLAGS_SHIFT) |
6141                                   RXD_FLAG_JUMBO;
6142                 rxd->opaque = (RXD_OPAQUE_RING_JUMBO |
6143                        (i << RXD_OPAQUE_INDEX_SHIFT));
6144         }
6145
6146         for (i = 0; i < tp->rx_jumbo_pending; i++) {
6147                 if (tg3_alloc_rx_skb(tp, tpr, RXD_OPAQUE_RING_JUMBO, i) < 0) {
6148                         netdev_warn(tp->dev,
6149                                     "Using a smaller RX jumbo ring. Only %d "
6150                                     "out of %d buffers were allocated "
6151                                     "successfully\n", i, tp->rx_jumbo_pending);
6152                         if (i == 0)
6153                                 goto initfail;
6154                         tp->rx_jumbo_pending = i;
6155                         break;
6156                 }
6157         }
6158
6159 done:
6160         return 0;
6161
6162 initfail:
6163         tg3_rx_prodring_free(tp, tpr);
6164         return -ENOMEM;
6165 }
6166
6167 static void tg3_rx_prodring_fini(struct tg3 *tp,
6168                                  struct tg3_rx_prodring_set *tpr)
6169 {
6170         kfree(tpr->rx_std_buffers);
6171         tpr->rx_std_buffers = NULL;
6172         kfree(tpr->rx_jmb_buffers);
6173         tpr->rx_jmb_buffers = NULL;
6174         if (tpr->rx_std) {
6175                 pci_free_consistent(tp->pdev, TG3_RX_RING_BYTES,
6176                                     tpr->rx_std, tpr->rx_std_mapping);
6177                 tpr->rx_std = NULL;
6178         }
6179         if (tpr->rx_jmb) {
6180                 pci_free_consistent(tp->pdev, TG3_RX_JUMBO_RING_BYTES,
6181                                     tpr->rx_jmb, tpr->rx_jmb_mapping);
6182                 tpr->rx_jmb = NULL;
6183         }
6184 }
6185
6186 static int tg3_rx_prodring_init(struct tg3 *tp,
6187                                 struct tg3_rx_prodring_set *tpr)
6188 {
6189         tpr->rx_std_buffers = kzalloc(TG3_RX_STD_BUFF_RING_SIZE, GFP_KERNEL);
6190         if (!tpr->rx_std_buffers)
6191                 return -ENOMEM;
6192
6193         tpr->rx_std = pci_alloc_consistent(tp->pdev, TG3_RX_RING_BYTES,
6194                                            &tpr->rx_std_mapping);
6195         if (!tpr->rx_std)
6196                 goto err_out;
6197
6198         if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) {
6199                 tpr->rx_jmb_buffers = kzalloc(TG3_RX_JMB_BUFF_RING_SIZE,
6200                                               GFP_KERNEL);
6201                 if (!tpr->rx_jmb_buffers)
6202                         goto err_out;
6203
6204                 tpr->rx_jmb = pci_alloc_consistent(tp->pdev,
6205                                                    TG3_RX_JUMBO_RING_BYTES,
6206                                                    &tpr->rx_jmb_mapping);
6207                 if (!tpr->rx_jmb)
6208                         goto err_out;
6209         }
6210
6211         return 0;
6212
6213 err_out:
6214         tg3_rx_prodring_fini(tp, tpr);
6215         return -ENOMEM;
6216 }
6217
6218 /* Free up pending packets in all rx/tx rings.
6219  *
6220  * The chip has been shut down and the driver detached from
6221  * the networking, so no interrupts or new tx packets will
6222  * end up in the driver.  tp->{tx,}lock is not held and we are not
6223  * in an interrupt context and thus may sleep.
6224  */
6225 static void tg3_free_rings(struct tg3 *tp)
6226 {
6227         int i, j;
6228
6229         for (j = 0; j < tp->irq_cnt; j++) {
6230                 struct tg3_napi *tnapi = &tp->napi[j];
6231
6232                 if (!tnapi->tx_buffers)
6233                         continue;
6234
6235                 for (i = 0; i < TG3_TX_RING_SIZE; ) {
6236                         struct ring_info *txp;
6237                         struct sk_buff *skb;
6238                         unsigned int k;
6239
6240                         txp = &tnapi->tx_buffers[i];
6241                         skb = txp->skb;
6242
6243                         if (skb == NULL) {
6244                                 i++;
6245                                 continue;
6246                         }
6247
6248                         pci_unmap_single(tp->pdev,
6249                                          dma_unmap_addr(txp, mapping),
6250                                          skb_headlen(skb),
6251                                          PCI_DMA_TODEVICE);
6252                         txp->skb = NULL;
6253
6254                         i++;
6255
6256                         for (k = 0; k < skb_shinfo(skb)->nr_frags; k++) {
6257                                 txp = &tnapi->tx_buffers[i & (TG3_TX_RING_SIZE - 1)];
6258                                 pci_unmap_page(tp->pdev,
6259                                                dma_unmap_addr(txp, mapping),
6260                                                skb_shinfo(skb)->frags[k].size,
6261                                                PCI_DMA_TODEVICE);
6262                                 i++;
6263                         }
6264
6265                         dev_kfree_skb_any(skb);
6266                 }
6267
6268                 tg3_rx_prodring_free(tp, &tp->prodring[j]);
6269         }
6270 }
6271
6272 /* Initialize tx/rx rings for packet processing.
6273  *
6274  * The chip has been shut down and the driver detached from
6275  * the networking, so no interrupts or new tx packets will
6276  * end up in the driver.  tp->{tx,}lock are held and thus
6277  * we may not sleep.
6278  */
6279 static int tg3_init_rings(struct tg3 *tp)
6280 {
6281         int i;
6282
6283         /* Free up all the SKBs. */
6284         tg3_free_rings(tp);
6285
6286         for (i = 0; i < tp->irq_cnt; i++) {
6287                 struct tg3_napi *tnapi = &tp->napi[i];
6288
6289                 tnapi->last_tag = 0;
6290                 tnapi->last_irq_tag = 0;
6291                 tnapi->hw_status->status = 0;
6292                 tnapi->hw_status->status_tag = 0;
6293                 memset(tnapi->hw_status, 0, TG3_HW_STATUS_SIZE);
6294
6295                 tnapi->tx_prod = 0;
6296                 tnapi->tx_cons = 0;
6297                 if (tnapi->tx_ring)
6298                         memset(tnapi->tx_ring, 0, TG3_TX_RING_BYTES);
6299
6300                 tnapi->rx_rcb_ptr = 0;
6301                 if (tnapi->rx_rcb)
6302                         memset(tnapi->rx_rcb, 0, TG3_RX_RCB_RING_BYTES(tp));
6303
6304                 if (tg3_rx_prodring_alloc(tp, &tp->prodring[i])) {
6305                         tg3_free_rings(tp);
6306                         return -ENOMEM;
6307                 }
6308         }
6309
6310         return 0;
6311 }
6312
6313 /*
6314  * Must not be invoked with interrupt sources disabled and
6315  * the hardware shutdown down.
6316  */
6317 static void tg3_free_consistent(struct tg3 *tp)
6318 {
6319         int i;
6320
6321         for (i = 0; i < tp->irq_cnt; i++) {
6322                 struct tg3_napi *tnapi = &tp->napi[i];
6323
6324                 if (tnapi->tx_ring) {
6325                         pci_free_consistent(tp->pdev, TG3_TX_RING_BYTES,
6326                                 tnapi->tx_ring, tnapi->tx_desc_mapping);
6327                         tnapi->tx_ring = NULL;
6328                 }
6329
6330                 kfree(tnapi->tx_buffers);
6331                 tnapi->tx_buffers = NULL;
6332
6333                 if (tnapi->rx_rcb) {
6334                         pci_free_consistent(tp->pdev, TG3_RX_RCB_RING_BYTES(tp),
6335                                             tnapi->rx_rcb,
6336                                             tnapi->rx_rcb_mapping);
6337                         tnapi->rx_rcb = NULL;
6338                 }
6339
6340                 if (tnapi->hw_status) {
6341                         pci_free_consistent(tp->pdev, TG3_HW_STATUS_SIZE,
6342                                             tnapi->hw_status,
6343                                             tnapi->status_mapping);
6344                         tnapi->hw_status = NULL;
6345                 }
6346         }
6347
6348         if (tp->hw_stats) {
6349                 pci_free_consistent(tp->pdev, sizeof(struct tg3_hw_stats),
6350                                     tp->hw_stats, tp->stats_mapping);
6351                 tp->hw_stats = NULL;
6352         }
6353
6354         for (i = 0; i < tp->irq_cnt; i++)
6355                 tg3_rx_prodring_fini(tp, &tp->prodring[i]);
6356 }
6357
6358 /*
6359  * Must not be invoked with interrupt sources disabled and
6360  * the hardware shutdown down.  Can sleep.
6361  */
6362 static int tg3_alloc_consistent(struct tg3 *tp)
6363 {
6364         int i;
6365
6366         for (i = 0; i < tp->irq_cnt; i++) {
6367                 if (tg3_rx_prodring_init(tp, &tp->prodring[i]))
6368                         goto err_out;
6369         }
6370
6371         tp->hw_stats = pci_alloc_consistent(tp->pdev,
6372                                             sizeof(struct tg3_hw_stats),
6373                                             &tp->stats_mapping);
6374         if (!tp->hw_stats)
6375                 goto err_out;
6376
6377         memset(tp->hw_stats, 0, sizeof(struct tg3_hw_stats));
6378
6379         for (i = 0; i < tp->irq_cnt; i++) {
6380                 struct tg3_napi *tnapi = &tp->napi[i];
6381                 struct tg3_hw_status *sblk;
6382
6383                 tnapi->hw_status = pci_alloc_consistent(tp->pdev,
6384                                                         TG3_HW_STATUS_SIZE,
6385                                                         &tnapi->status_mapping);
6386                 if (!tnapi->hw_status)
6387                         goto err_out;
6388
6389                 memset(tnapi->hw_status, 0, TG3_HW_STATUS_SIZE);
6390                 sblk = tnapi->hw_status;
6391
6392                 /* If multivector TSS is enabled, vector 0 does not handle
6393                  * tx interrupts.  Don't allocate any resources for it.
6394                  */
6395                 if ((!i && !(tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)) ||
6396                     (i && (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS))) {
6397                         tnapi->tx_buffers = kzalloc(sizeof(struct ring_info) *
6398                                                     TG3_TX_RING_SIZE,
6399                                                     GFP_KERNEL);
6400                         if (!tnapi->tx_buffers)
6401                                 goto err_out;
6402
6403                         tnapi->tx_ring = pci_alloc_consistent(tp->pdev,
6404                                                               TG3_TX_RING_BYTES,
6405                                                        &tnapi->tx_desc_mapping);
6406                         if (!tnapi->tx_ring)
6407                                 goto err_out;
6408                 }
6409
6410                 /*
6411                  * When RSS is enabled, the status block format changes
6412                  * slightly.  The "rx_jumbo_consumer", "reserved",
6413                  * and "rx_mini_consumer" members get mapped to the
6414                  * other three rx return ring producer indexes.
6415                  */
6416                 switch (i) {
6417                 default:
6418                         tnapi->rx_rcb_prod_idx = &sblk->idx[0].rx_producer;
6419                         break;
6420                 case 2:
6421                         tnapi->rx_rcb_prod_idx = &sblk->rx_jumbo_consumer;
6422                         break;
6423                 case 3:
6424                         tnapi->rx_rcb_prod_idx = &sblk->reserved;
6425                         break;
6426                 case 4:
6427                         tnapi->rx_rcb_prod_idx = &sblk->rx_mini_consumer;
6428                         break;
6429                 }
6430
6431                 tnapi->prodring = &tp->prodring[i];
6432
6433                 /*
6434                  * If multivector RSS is enabled, vector 0 does not handle
6435                  * rx or tx interrupts.  Don't allocate any resources for it.
6436                  */
6437                 if (!i && (tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS))
6438                         continue;
6439
6440                 tnapi->rx_rcb = pci_alloc_consistent(tp->pdev,
6441                                                      TG3_RX_RCB_RING_BYTES(tp),
6442                                                      &tnapi->rx_rcb_mapping);
6443                 if (!tnapi->rx_rcb)
6444                         goto err_out;
6445
6446                 memset(tnapi->rx_rcb, 0, TG3_RX_RCB_RING_BYTES(tp));
6447         }
6448
6449         return 0;
6450
6451 err_out:
6452         tg3_free_consistent(tp);
6453         return -ENOMEM;
6454 }
6455
6456 #define MAX_WAIT_CNT 1000
6457
6458 /* To stop a block, clear the enable bit and poll till it
6459  * clears.  tp->lock is held.
6460  */
6461 static int tg3_stop_block(struct tg3 *tp, unsigned long ofs, u32 enable_bit, int silent)
6462 {
6463         unsigned int i;
6464         u32 val;
6465
6466         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
6467                 switch (ofs) {
6468                 case RCVLSC_MODE:
6469                 case DMAC_MODE:
6470                 case MBFREE_MODE:
6471                 case BUFMGR_MODE:
6472                 case MEMARB_MODE:
6473                         /* We can't enable/disable these bits of the
6474                          * 5705/5750, just say success.
6475                          */
6476                         return 0;
6477
6478                 default:
6479                         break;
6480                 }
6481         }
6482
6483         val = tr32(ofs);
6484         val &= ~enable_bit;
6485         tw32_f(ofs, val);
6486
6487         for (i = 0; i < MAX_WAIT_CNT; i++) {
6488                 udelay(100);
6489                 val = tr32(ofs);
6490                 if ((val & enable_bit) == 0)
6491                         break;
6492         }
6493
6494         if (i == MAX_WAIT_CNT && !silent) {
6495                 dev_err(&tp->pdev->dev,
6496                         "tg3_stop_block timed out, ofs=%lx enable_bit=%x\n",
6497                         ofs, enable_bit);
6498                 return -ENODEV;
6499         }
6500
6501         return 0;
6502 }
6503
6504 /* tp->lock is held. */
6505 static int tg3_abort_hw(struct tg3 *tp, int silent)
6506 {
6507         int i, err;
6508
6509         tg3_disable_ints(tp);
6510
6511         tp->rx_mode &= ~RX_MODE_ENABLE;
6512         tw32_f(MAC_RX_MODE, tp->rx_mode);
6513         udelay(10);
6514
6515         err  = tg3_stop_block(tp, RCVBDI_MODE, RCVBDI_MODE_ENABLE, silent);
6516         err |= tg3_stop_block(tp, RCVLPC_MODE, RCVLPC_MODE_ENABLE, silent);
6517         err |= tg3_stop_block(tp, RCVLSC_MODE, RCVLSC_MODE_ENABLE, silent);
6518         err |= tg3_stop_block(tp, RCVDBDI_MODE, RCVDBDI_MODE_ENABLE, silent);
6519         err |= tg3_stop_block(tp, RCVDCC_MODE, RCVDCC_MODE_ENABLE, silent);
6520         err |= tg3_stop_block(tp, RCVCC_MODE, RCVCC_MODE_ENABLE, silent);
6521
6522         err |= tg3_stop_block(tp, SNDBDS_MODE, SNDBDS_MODE_ENABLE, silent);
6523         err |= tg3_stop_block(tp, SNDBDI_MODE, SNDBDI_MODE_ENABLE, silent);
6524         err |= tg3_stop_block(tp, SNDDATAI_MODE, SNDDATAI_MODE_ENABLE, silent);
6525         err |= tg3_stop_block(tp, RDMAC_MODE, RDMAC_MODE_ENABLE, silent);
6526         err |= tg3_stop_block(tp, SNDDATAC_MODE, SNDDATAC_MODE_ENABLE, silent);
6527         err |= tg3_stop_block(tp, DMAC_MODE, DMAC_MODE_ENABLE, silent);
6528         err |= tg3_stop_block(tp, SNDBDC_MODE, SNDBDC_MODE_ENABLE, silent);
6529
6530         tp->mac_mode &= ~MAC_MODE_TDE_ENABLE;
6531         tw32_f(MAC_MODE, tp->mac_mode);
6532         udelay(40);
6533
6534         tp->tx_mode &= ~TX_MODE_ENABLE;
6535         tw32_f(MAC_TX_MODE, tp->tx_mode);
6536
6537         for (i = 0; i < MAX_WAIT_CNT; i++) {
6538                 udelay(100);
6539                 if (!(tr32(MAC_TX_MODE) & TX_MODE_ENABLE))
6540                         break;
6541         }
6542         if (i >= MAX_WAIT_CNT) {
6543                 dev_err(&tp->pdev->dev,
6544                         "%s timed out, TX_MODE_ENABLE will not clear "
6545                         "MAC_TX_MODE=%08x\n", __func__, tr32(MAC_TX_MODE));
6546                 err |= -ENODEV;
6547         }
6548
6549         err |= tg3_stop_block(tp, HOSTCC_MODE, HOSTCC_MODE_ENABLE, silent);
6550         err |= tg3_stop_block(tp, WDMAC_MODE, WDMAC_MODE_ENABLE, silent);
6551         err |= tg3_stop_block(tp, MBFREE_MODE, MBFREE_MODE_ENABLE, silent);
6552
6553         tw32(FTQ_RESET, 0xffffffff);
6554         tw32(FTQ_RESET, 0x00000000);
6555
6556         err |= tg3_stop_block(tp, BUFMGR_MODE, BUFMGR_MODE_ENABLE, silent);
6557         err |= tg3_stop_block(tp, MEMARB_MODE, MEMARB_MODE_ENABLE, silent);
6558
6559         for (i = 0; i < tp->irq_cnt; i++) {
6560                 struct tg3_napi *tnapi = &tp->napi[i];
6561                 if (tnapi->hw_status)
6562                         memset(tnapi->hw_status, 0, TG3_HW_STATUS_SIZE);
6563         }
6564         if (tp->hw_stats)
6565                 memset(tp->hw_stats, 0, sizeof(struct tg3_hw_stats));
6566
6567         return err;
6568 }
6569
6570 static void tg3_ape_send_event(struct tg3 *tp, u32 event)
6571 {
6572         int i;
6573         u32 apedata;
6574
6575         apedata = tg3_ape_read32(tp, TG3_APE_SEG_SIG);
6576         if (apedata != APE_SEG_SIG_MAGIC)
6577                 return;
6578
6579         apedata = tg3_ape_read32(tp, TG3_APE_FW_STATUS);
6580         if (!(apedata & APE_FW_STATUS_READY))
6581                 return;
6582
6583         /* Wait for up to 1 millisecond for APE to service previous event. */
6584         for (i = 0; i < 10; i++) {
6585                 if (tg3_ape_lock(tp, TG3_APE_LOCK_MEM))
6586                         return;
6587
6588                 apedata = tg3_ape_read32(tp, TG3_APE_EVENT_STATUS);
6589
6590                 if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING))
6591                         tg3_ape_write32(tp, TG3_APE_EVENT_STATUS,
6592                                         event | APE_EVENT_STATUS_EVENT_PENDING);
6593
6594                 tg3_ape_unlock(tp, TG3_APE_LOCK_MEM);
6595
6596                 if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING))
6597                         break;
6598
6599                 udelay(100);
6600         }
6601
6602         if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING))
6603                 tg3_ape_write32(tp, TG3_APE_EVENT, APE_EVENT_1);
6604 }
6605
6606 static void tg3_ape_driver_state_change(struct tg3 *tp, int kind)
6607 {
6608         u32 event;
6609         u32 apedata;
6610
6611         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE))
6612                 return;
6613
6614         switch (kind) {
6615         case RESET_KIND_INIT:
6616                 tg3_ape_write32(tp, TG3_APE_HOST_SEG_SIG,
6617                                 APE_HOST_SEG_SIG_MAGIC);
6618                 tg3_ape_write32(tp, TG3_APE_HOST_SEG_LEN,
6619                                 APE_HOST_SEG_LEN_MAGIC);
6620                 apedata = tg3_ape_read32(tp, TG3_APE_HOST_INIT_COUNT);
6621                 tg3_ape_write32(tp, TG3_APE_HOST_INIT_COUNT, ++apedata);
6622                 tg3_ape_write32(tp, TG3_APE_HOST_DRIVER_ID,
6623                                 APE_HOST_DRIVER_ID_MAGIC);
6624                 tg3_ape_write32(tp, TG3_APE_HOST_BEHAVIOR,
6625                                 APE_HOST_BEHAV_NO_PHYLOCK);
6626
6627                 event = APE_EVENT_STATUS_STATE_START;
6628                 break;
6629         case RESET_KIND_SHUTDOWN:
6630                 /* With the interface we are currently using,
6631                  * APE does not track driver state.  Wiping
6632                  * out the HOST SEGMENT SIGNATURE forces
6633                  * the APE to assume OS absent status.
6634                  */
6635                 tg3_ape_write32(tp, TG3_APE_HOST_SEG_SIG, 0x0);
6636
6637                 event = APE_EVENT_STATUS_STATE_UNLOAD;
6638                 break;
6639         case RESET_KIND_SUSPEND:
6640                 event = APE_EVENT_STATUS_STATE_SUSPEND;
6641                 break;
6642         default:
6643                 return;
6644         }
6645
6646         event |= APE_EVENT_STATUS_DRIVER_EVNT | APE_EVENT_STATUS_STATE_CHNGE;
6647
6648         tg3_ape_send_event(tp, event);
6649 }
6650
6651 /* tp->lock is held. */
6652 static void tg3_write_sig_pre_reset(struct tg3 *tp, int kind)
6653 {
6654         tg3_write_mem(tp, NIC_SRAM_FIRMWARE_MBOX,
6655                       NIC_SRAM_FIRMWARE_MBOX_MAGIC1);
6656
6657         if (tp->tg3_flags2 & TG3_FLG2_ASF_NEW_HANDSHAKE) {
6658                 switch (kind) {
6659                 case RESET_KIND_INIT:
6660                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6661                                       DRV_STATE_START);
6662                         break;
6663
6664                 case RESET_KIND_SHUTDOWN:
6665                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6666                                       DRV_STATE_UNLOAD);
6667                         break;
6668
6669                 case RESET_KIND_SUSPEND:
6670                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6671                                       DRV_STATE_SUSPEND);
6672                         break;
6673
6674                 default:
6675                         break;
6676                 }
6677         }
6678
6679         if (kind == RESET_KIND_INIT ||
6680             kind == RESET_KIND_SUSPEND)
6681                 tg3_ape_driver_state_change(tp, kind);
6682 }
6683
6684 /* tp->lock is held. */
6685 static void tg3_write_sig_post_reset(struct tg3 *tp, int kind)
6686 {
6687         if (tp->tg3_flags2 & TG3_FLG2_ASF_NEW_HANDSHAKE) {
6688                 switch (kind) {
6689                 case RESET_KIND_INIT:
6690                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6691                                       DRV_STATE_START_DONE);
6692                         break;
6693
6694                 case RESET_KIND_SHUTDOWN:
6695                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6696                                       DRV_STATE_UNLOAD_DONE);
6697                         break;
6698
6699                 default:
6700                         break;
6701                 }
6702         }
6703
6704         if (kind == RESET_KIND_SHUTDOWN)
6705                 tg3_ape_driver_state_change(tp, kind);
6706 }
6707
6708 /* tp->lock is held. */
6709 static void tg3_write_sig_legacy(struct tg3 *tp, int kind)
6710 {
6711         if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) {
6712                 switch (kind) {
6713                 case RESET_KIND_INIT:
6714                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6715                                       DRV_STATE_START);
6716                         break;
6717
6718                 case RESET_KIND_SHUTDOWN:
6719                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6720                                       DRV_STATE_UNLOAD);
6721                         break;
6722
6723                 case RESET_KIND_SUSPEND:
6724                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6725                                       DRV_STATE_SUSPEND);
6726                         break;
6727
6728                 default:
6729                         break;
6730                 }
6731         }
6732 }
6733
6734 static int tg3_poll_fw(struct tg3 *tp)
6735 {
6736         int i;
6737         u32 val;
6738
6739         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
6740                 /* Wait up to 20ms for init done. */
6741                 for (i = 0; i < 200; i++) {
6742                         if (tr32(VCPU_STATUS) & VCPU_STATUS_INIT_DONE)
6743                                 return 0;
6744                         udelay(100);
6745                 }
6746                 return -ENODEV;
6747         }
6748
6749         /* Wait for firmware initialization to complete. */
6750         for (i = 0; i < 100000; i++) {
6751                 tg3_read_mem(tp, NIC_SRAM_FIRMWARE_MBOX, &val);
6752                 if (val == ~NIC_SRAM_FIRMWARE_MBOX_MAGIC1)
6753                         break;
6754                 udelay(10);
6755         }
6756
6757         /* Chip might not be fitted with firmware.  Some Sun onboard
6758          * parts are configured like that.  So don't signal the timeout
6759          * of the above loop as an error, but do report the lack of
6760          * running firmware once.
6761          */
6762         if (i >= 100000 &&
6763             !(tp->tg3_flags2 & TG3_FLG2_NO_FWARE_REPORTED)) {
6764                 tp->tg3_flags2 |= TG3_FLG2_NO_FWARE_REPORTED;
6765
6766                 netdev_info(tp->dev, "No firmware running\n");
6767         }
6768
6769         if (tp->pci_chip_rev_id == CHIPREV_ID_57765_A0) {
6770                 /* The 57765 A0 needs a little more
6771                  * time to do some important work.
6772                  */
6773                 mdelay(10);
6774         }
6775
6776         return 0;
6777 }
6778
6779 /* Save PCI command register before chip reset */
6780 static void tg3_save_pci_state(struct tg3 *tp)
6781 {
6782         pci_read_config_word(tp->pdev, PCI_COMMAND, &tp->pci_cmd);
6783 }
6784
6785 /* Restore PCI state after chip reset */
6786 static void tg3_restore_pci_state(struct tg3 *tp)
6787 {
6788         u32 val;
6789
6790         /* Re-enable indirect register accesses. */
6791         pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
6792                                tp->misc_host_ctrl);
6793
6794         /* Set MAX PCI retry to zero. */
6795         val = (PCISTATE_ROM_ENABLE | PCISTATE_ROM_RETRY_ENABLE);
6796         if (tp->pci_chip_rev_id == CHIPREV_ID_5704_A0 &&
6797             (tp->tg3_flags & TG3_FLAG_PCIX_MODE))
6798                 val |= PCISTATE_RETRY_SAME_DMA;
6799         /* Allow reads and writes to the APE register and memory space. */
6800         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
6801                 val |= PCISTATE_ALLOW_APE_CTLSPC_WR |
6802                        PCISTATE_ALLOW_APE_SHMEM_WR |
6803                        PCISTATE_ALLOW_APE_PSPACE_WR;
6804         pci_write_config_dword(tp->pdev, TG3PCI_PCISTATE, val);
6805
6806         pci_write_config_word(tp->pdev, PCI_COMMAND, tp->pci_cmd);
6807
6808         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785) {
6809                 if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS)
6810                         pcie_set_readrq(tp->pdev, 4096);
6811                 else {
6812                         pci_write_config_byte(tp->pdev, PCI_CACHE_LINE_SIZE,
6813                                               tp->pci_cacheline_sz);
6814                         pci_write_config_byte(tp->pdev, PCI_LATENCY_TIMER,
6815                                               tp->pci_lat_timer);
6816                 }
6817         }
6818
6819         /* Make sure PCI-X relaxed ordering bit is clear. */
6820         if (tp->tg3_flags & TG3_FLAG_PCIX_MODE) {
6821                 u16 pcix_cmd;
6822
6823                 pci_read_config_word(tp->pdev, tp->pcix_cap + PCI_X_CMD,
6824                                      &pcix_cmd);
6825                 pcix_cmd &= ~PCI_X_CMD_ERO;
6826                 pci_write_config_word(tp->pdev, tp->pcix_cap + PCI_X_CMD,
6827                                       pcix_cmd);
6828         }
6829
6830         if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) {
6831
6832                 /* Chip reset on 5780 will reset MSI enable bit,
6833                  * so need to restore it.
6834                  */
6835                 if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
6836                         u16 ctrl;
6837
6838                         pci_read_config_word(tp->pdev,
6839                                              tp->msi_cap + PCI_MSI_FLAGS,
6840                                              &ctrl);
6841                         pci_write_config_word(tp->pdev,
6842                                               tp->msi_cap + PCI_MSI_FLAGS,
6843                                               ctrl | PCI_MSI_FLAGS_ENABLE);
6844                         val = tr32(MSGINT_MODE);
6845                         tw32(MSGINT_MODE, val | MSGINT_MODE_ENABLE);
6846                 }
6847         }
6848 }
6849
6850 static void tg3_stop_fw(struct tg3 *);
6851
6852 /* tp->lock is held. */
6853 static int tg3_chip_reset(struct tg3 *tp)
6854 {
6855         u32 val;
6856         void (*write_op)(struct tg3 *, u32, u32);
6857         int i, err;
6858
6859         tg3_nvram_lock(tp);
6860
6861         tg3_ape_lock(tp, TG3_APE_LOCK_GRC);
6862
6863         /* No matching tg3_nvram_unlock() after this because
6864          * chip reset below will undo the nvram lock.
6865          */
6866         tp->nvram_lock_cnt = 0;
6867
6868         /* GRC_MISC_CFG core clock reset will clear the memory
6869          * enable bit in PCI register 4 and the MSI enable bit
6870          * on some chips, so we save relevant registers here.
6871          */
6872         tg3_save_pci_state(tp);
6873
6874         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752 ||
6875             (tp->tg3_flags3 & TG3_FLG3_5755_PLUS))
6876                 tw32(GRC_FASTBOOT_PC, 0);
6877
6878         /*
6879          * We must avoid the readl() that normally takes place.
6880          * It locks machines, causes machine checks, and other
6881          * fun things.  So, temporarily disable the 5701
6882          * hardware workaround, while we do the reset.
6883          */
6884         write_op = tp->write32;
6885         if (write_op == tg3_write_flush_reg32)
6886                 tp->write32 = tg3_write32;
6887
6888         /* Prevent the irq handler from reading or writing PCI registers
6889          * during chip reset when the memory enable bit in the PCI command
6890          * register may be cleared.  The chip does not generate interrupt
6891          * at this time, but the irq handler may still be called due to irq
6892          * sharing or irqpoll.
6893          */
6894         tp->tg3_flags |= TG3_FLAG_CHIP_RESETTING;
6895         for (i = 0; i < tp->irq_cnt; i++) {
6896                 struct tg3_napi *tnapi = &tp->napi[i];
6897                 if (tnapi->hw_status) {
6898                         tnapi->hw_status->status = 0;
6899                         tnapi->hw_status->status_tag = 0;
6900                 }
6901                 tnapi->last_tag = 0;
6902                 tnapi->last_irq_tag = 0;
6903         }
6904         smp_mb();
6905
6906         for (i = 0; i < tp->irq_cnt; i++)
6907                 synchronize_irq(tp->napi[i].irq_vec);
6908
6909         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780) {
6910                 val = tr32(TG3_PCIE_LNKCTL) & ~TG3_PCIE_LNKCTL_L1_PLL_PD_EN;
6911                 tw32(TG3_PCIE_LNKCTL, val | TG3_PCIE_LNKCTL_L1_PLL_PD_DIS);
6912         }
6913
6914         /* do the reset */
6915         val = GRC_MISC_CFG_CORECLK_RESET;
6916
6917         if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
6918                 if (tr32(0x7e2c) == 0x60) {
6919                         tw32(0x7e2c, 0x20);
6920                 }
6921                 if (tp->pci_chip_rev_id != CHIPREV_ID_5750_A0) {
6922                         tw32(GRC_MISC_CFG, (1 << 29));
6923                         val |= (1 << 29);
6924                 }
6925         }
6926
6927         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
6928                 tw32(VCPU_STATUS, tr32(VCPU_STATUS) | VCPU_STATUS_DRV_RESET);
6929                 tw32(GRC_VCPU_EXT_CTRL,
6930                      tr32(GRC_VCPU_EXT_CTRL) & ~GRC_VCPU_EXT_CTRL_HALT_CPU);
6931         }
6932
6933         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
6934                 val |= GRC_MISC_CFG_KEEP_GPHY_POWER;
6935         tw32(GRC_MISC_CFG, val);
6936
6937         /* restore 5701 hardware bug workaround write method */
6938         tp->write32 = write_op;
6939
6940         /* Unfortunately, we have to delay before the PCI read back.
6941          * Some 575X chips even will not respond to a PCI cfg access
6942          * when the reset command is given to the chip.
6943          *
6944          * How do these hardware designers expect things to work
6945          * properly if the PCI write is posted for a long period
6946          * of time?  It is always necessary to have some method by
6947          * which a register read back can occur to push the write
6948          * out which does the reset.
6949          *
6950          * For most tg3 variants the trick below was working.
6951          * Ho hum...
6952          */
6953         udelay(120);
6954
6955         /* Flush PCI posted writes.  The normal MMIO registers
6956          * are inaccessible at this time so this is the only
6957          * way to make this reliably (actually, this is no longer
6958          * the case, see above).  I tried to use indirect
6959          * register read/write but this upset some 5701 variants.
6960          */
6961         pci_read_config_dword(tp->pdev, PCI_COMMAND, &val);
6962
6963         udelay(120);
6964
6965         if ((tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) && tp->pcie_cap) {
6966                 u16 val16;
6967
6968                 if (tp->pci_chip_rev_id == CHIPREV_ID_5750_A0) {
6969                         int i;
6970                         u32 cfg_val;
6971
6972                         /* Wait for link training to complete.  */
6973                         for (i = 0; i < 5000; i++)
6974                                 udelay(100);
6975
6976                         pci_read_config_dword(tp->pdev, 0xc4, &cfg_val);
6977                         pci_write_config_dword(tp->pdev, 0xc4,
6978                                                cfg_val | (1 << 15));
6979                 }
6980
6981                 /* Clear the "no snoop" and "relaxed ordering" bits. */
6982                 pci_read_config_word(tp->pdev,
6983                                      tp->pcie_cap + PCI_EXP_DEVCTL,
6984                                      &val16);
6985                 val16 &= ~(PCI_EXP_DEVCTL_RELAX_EN |
6986                            PCI_EXP_DEVCTL_NOSNOOP_EN);
6987                 /*
6988                  * Older PCIe devices only support the 128 byte
6989                  * MPS setting.  Enforce the restriction.
6990                  */
6991                 if (!(tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) ||
6992                     (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784))
6993                         val16 &= ~PCI_EXP_DEVCTL_PAYLOAD;
6994                 pci_write_config_word(tp->pdev,
6995                                       tp->pcie_cap + PCI_EXP_DEVCTL,
6996                                       val16);
6997
6998                 pcie_set_readrq(tp->pdev, 4096);
6999
7000                 /* Clear error status */
7001                 pci_write_config_word(tp->pdev,
7002                                       tp->pcie_cap + PCI_EXP_DEVSTA,
7003                                       PCI_EXP_DEVSTA_CED |
7004                                       PCI_EXP_DEVSTA_NFED |
7005                                       PCI_EXP_DEVSTA_FED |
7006                                       PCI_EXP_DEVSTA_URD);
7007         }
7008
7009         tg3_restore_pci_state(tp);
7010
7011         tp->tg3_flags &= ~TG3_FLAG_CHIP_RESETTING;
7012
7013         val = 0;
7014         if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)
7015                 val = tr32(MEMARB_MODE);
7016         tw32(MEMARB_MODE, val | MEMARB_MODE_ENABLE);
7017
7018         if (tp->pci_chip_rev_id == CHIPREV_ID_5750_A3) {
7019                 tg3_stop_fw(tp);
7020                 tw32(0x5000, 0x400);
7021         }
7022
7023         tw32(GRC_MODE, tp->grc_mode);
7024
7025         if (tp->pci_chip_rev_id == CHIPREV_ID_5705_A0) {
7026                 val = tr32(0xc4);
7027
7028                 tw32(0xc4, val | (1 << 15));
7029         }
7030
7031         if ((tp->nic_sram_data_cfg & NIC_SRAM_DATA_CFG_MINI_PCI) != 0 &&
7032             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
7033                 tp->pci_clock_ctrl |= CLOCK_CTRL_CLKRUN_OENABLE;
7034                 if (tp->pci_chip_rev_id == CHIPREV_ID_5705_A0)
7035                         tp->pci_clock_ctrl |= CLOCK_CTRL_FORCE_CLKRUN;
7036                 tw32(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl);
7037         }
7038
7039         if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) {
7040                 tp->mac_mode = MAC_MODE_PORT_MODE_TBI;
7041                 tw32_f(MAC_MODE, tp->mac_mode);
7042         } else if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES) {
7043                 tp->mac_mode = MAC_MODE_PORT_MODE_GMII;
7044                 tw32_f(MAC_MODE, tp->mac_mode);
7045         } else if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
7046                 tp->mac_mode &= (MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN);
7047                 if (tp->mac_mode & MAC_MODE_APE_TX_EN)
7048                         tp->mac_mode |= MAC_MODE_TDE_ENABLE;
7049                 tw32_f(MAC_MODE, tp->mac_mode);
7050         } else
7051                 tw32_f(MAC_MODE, 0);
7052         udelay(40);
7053
7054         tg3_ape_unlock(tp, TG3_APE_LOCK_GRC);
7055
7056         err = tg3_poll_fw(tp);
7057         if (err)
7058                 return err;
7059
7060         tg3_mdio_start(tp);
7061
7062         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780) {
7063                 u8 phy_addr;
7064
7065                 phy_addr = tp->phy_addr;
7066                 tp->phy_addr = TG3_PHY_PCIE_ADDR;
7067
7068                 tg3_writephy(tp, TG3_PCIEPHY_BLOCK_ADDR,
7069                              TG3_PCIEPHY_TXB_BLK << TG3_PCIEPHY_BLOCK_SHIFT);
7070                 val = TG3_PCIEPHY_TX0CTRL1_TXOCM | TG3_PCIEPHY_TX0CTRL1_RDCTL |
7071                       TG3_PCIEPHY_TX0CTRL1_TXCMV | TG3_PCIEPHY_TX0CTRL1_TKSEL |
7072                       TG3_PCIEPHY_TX0CTRL1_NB_EN;
7073                 tg3_writephy(tp, TG3_PCIEPHY_TX0CTRL1, val);
7074                 udelay(10);
7075
7076                 tg3_writephy(tp, TG3_PCIEPHY_BLOCK_ADDR,
7077                              TG3_PCIEPHY_XGXS_BLK1 << TG3_PCIEPHY_BLOCK_SHIFT);
7078                 val = TG3_PCIEPHY_PWRMGMT4_LOWPWR_EN |
7079                       TG3_PCIEPHY_PWRMGMT4_L1PLLPD_EN;
7080                 tg3_writephy(tp, TG3_PCIEPHY_PWRMGMT4, val);
7081                 udelay(10);
7082
7083                 tp->phy_addr = phy_addr;
7084         }
7085
7086         if ((tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) &&
7087             tp->pci_chip_rev_id != CHIPREV_ID_5750_A0 &&
7088             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785 &&
7089             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5717 &&
7090             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_57765) {
7091                 val = tr32(0x7c00);
7092
7093                 tw32(0x7c00, val | (1 << 25));
7094         }
7095
7096         /* Reprobe ASF enable state.  */
7097         tp->tg3_flags &= ~TG3_FLAG_ENABLE_ASF;
7098         tp->tg3_flags2 &= ~TG3_FLG2_ASF_NEW_HANDSHAKE;
7099         tg3_read_mem(tp, NIC_SRAM_DATA_SIG, &val);
7100         if (val == NIC_SRAM_DATA_SIG_MAGIC) {
7101                 u32 nic_cfg;
7102
7103                 tg3_read_mem(tp, NIC_SRAM_DATA_CFG, &nic_cfg);
7104                 if (nic_cfg & NIC_SRAM_DATA_CFG_ASF_ENABLE) {
7105                         tp->tg3_flags |= TG3_FLAG_ENABLE_ASF;
7106                         tp->last_event_jiffies = jiffies;
7107                         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS)
7108                                 tp->tg3_flags2 |= TG3_FLG2_ASF_NEW_HANDSHAKE;
7109                 }
7110         }
7111
7112         return 0;
7113 }
7114
7115 /* tp->lock is held. */
7116 static void tg3_stop_fw(struct tg3 *tp)
7117 {
7118         if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) &&
7119            !(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)) {
7120                 /* Wait for RX cpu to ACK the previous event. */
7121                 tg3_wait_for_event_ack(tp);
7122
7123                 tg3_write_mem(tp, NIC_SRAM_FW_CMD_MBOX, FWCMD_NICDRV_PAUSE_FW);
7124
7125                 tg3_generate_fw_event(tp);
7126
7127                 /* Wait for RX cpu to ACK this event. */
7128                 tg3_wait_for_event_ack(tp);
7129         }
7130 }
7131
7132 /* tp->lock is held. */
7133 static int tg3_halt(struct tg3 *tp, int kind, int silent)
7134 {
7135         int err;
7136
7137         tg3_stop_fw(tp);
7138
7139         tg3_write_sig_pre_reset(tp, kind);
7140
7141         tg3_abort_hw(tp, silent);
7142         err = tg3_chip_reset(tp);
7143
7144         __tg3_set_mac_addr(tp, 0);
7145
7146         tg3_write_sig_legacy(tp, kind);
7147         tg3_write_sig_post_reset(tp, kind);
7148
7149         if (err)
7150                 return err;
7151
7152         return 0;
7153 }
7154
7155 #define RX_CPU_SCRATCH_BASE     0x30000
7156 #define RX_CPU_SCRATCH_SIZE     0x04000
7157 #define TX_CPU_SCRATCH_BASE     0x34000
7158 #define TX_CPU_SCRATCH_SIZE     0x04000
7159
7160 /* tp->lock is held. */
7161 static int tg3_halt_cpu(struct tg3 *tp, u32 offset)
7162 {
7163         int i;
7164
7165         BUG_ON(offset == TX_CPU_BASE &&
7166             (tp->tg3_flags2 & TG3_FLG2_5705_PLUS));
7167
7168         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
7169                 u32 val = tr32(GRC_VCPU_EXT_CTRL);
7170
7171                 tw32(GRC_VCPU_EXT_CTRL, val | GRC_VCPU_EXT_CTRL_HALT_CPU);
7172                 return 0;
7173         }
7174         if (offset == RX_CPU_BASE) {
7175                 for (i = 0; i < 10000; i++) {
7176                         tw32(offset + CPU_STATE, 0xffffffff);
7177                         tw32(offset + CPU_MODE,  CPU_MODE_HALT);
7178                         if (tr32(offset + CPU_MODE) & CPU_MODE_HALT)
7179                                 break;
7180                 }
7181
7182                 tw32(offset + CPU_STATE, 0xffffffff);
7183                 tw32_f(offset + CPU_MODE,  CPU_MODE_HALT);
7184                 udelay(10);
7185         } else {
7186                 for (i = 0; i < 10000; i++) {
7187                         tw32(offset + CPU_STATE, 0xffffffff);
7188                         tw32(offset + CPU_MODE,  CPU_MODE_HALT);
7189                         if (tr32(offset + CPU_MODE) & CPU_MODE_HALT)
7190                                 break;
7191                 }
7192         }
7193
7194         if (i >= 10000) {
7195                 netdev_err(tp->dev, "%s timed out, %s CPU\n",
7196                            __func__, offset == RX_CPU_BASE ? "RX" : "TX");
7197                 return -ENODEV;
7198         }
7199
7200         /* Clear firmware's nvram arbitration. */
7201         if (tp->tg3_flags & TG3_FLAG_NVRAM)
7202                 tw32(NVRAM_SWARB, SWARB_REQ_CLR0);
7203         return 0;
7204 }
7205
7206 struct fw_info {
7207         unsigned int fw_base;
7208         unsigned int fw_len;
7209         const __be32 *fw_data;
7210 };
7211
7212 /* tp->lock is held. */
7213 static int tg3_load_firmware_cpu(struct tg3 *tp, u32 cpu_base, u32 cpu_scratch_base,
7214                                  int cpu_scratch_size, struct fw_info *info)
7215 {
7216         int err, lock_err, i;
7217         void (*write_op)(struct tg3 *, u32, u32);
7218
7219         if (cpu_base == TX_CPU_BASE &&
7220             (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
7221                 netdev_err(tp->dev,
7222                            "%s: Trying to load TX cpu firmware which is 5705\n",
7223                            __func__);
7224                 return -EINVAL;
7225         }
7226
7227         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
7228                 write_op = tg3_write_mem;
7229         else
7230                 write_op = tg3_write_indirect_reg32;
7231
7232         /* It is possible that bootcode is still loading at this point.
7233          * Get the nvram lock first before halting the cpu.
7234          */
7235         lock_err = tg3_nvram_lock(tp);
7236         err = tg3_halt_cpu(tp, cpu_base);
7237         if (!lock_err)
7238                 tg3_nvram_unlock(tp);
7239         if (err)
7240                 goto out;
7241
7242         for (i = 0; i < cpu_scratch_size; i += sizeof(u32))
7243                 write_op(tp, cpu_scratch_base + i, 0);
7244         tw32(cpu_base + CPU_STATE, 0xffffffff);
7245         tw32(cpu_base + CPU_MODE, tr32(cpu_base+CPU_MODE)|CPU_MODE_HALT);
7246         for (i = 0; i < (info->fw_len / sizeof(u32)); i++)
7247                 write_op(tp, (cpu_scratch_base +
7248                               (info->fw_base & 0xffff) +
7249                               (i * sizeof(u32))),
7250                               be32_to_cpu(info->fw_data[i]));
7251
7252         err = 0;
7253
7254 out:
7255         return err;
7256 }
7257
7258 /* tp->lock is held. */
7259 static int tg3_load_5701_a0_firmware_fix(struct tg3 *tp)
7260 {
7261         struct fw_info info;
7262         const __be32 *fw_data;
7263         int err, i;
7264
7265         fw_data = (void *)tp->fw->data;
7266
7267         /* Firmware blob starts with version numbers, followed by
7268            start address and length. We are setting complete length.
7269            length = end_address_of_bss - start_address_of_text.
7270            Remainder is the blob to be loaded contiguously
7271            from start address. */
7272
7273         info.fw_base = be32_to_cpu(fw_data[1]);
7274         info.fw_len = tp->fw->size - 12;
7275         info.fw_data = &fw_data[3];
7276
7277         err = tg3_load_firmware_cpu(tp, RX_CPU_BASE,
7278                                     RX_CPU_SCRATCH_BASE, RX_CPU_SCRATCH_SIZE,
7279                                     &info);
7280         if (err)
7281                 return err;
7282
7283         err = tg3_load_firmware_cpu(tp, TX_CPU_BASE,
7284                                     TX_CPU_SCRATCH_BASE, TX_CPU_SCRATCH_SIZE,
7285                                     &info);
7286         if (err)
7287                 return err;
7288
7289         /* Now startup only the RX cpu. */
7290         tw32(RX_CPU_BASE + CPU_STATE, 0xffffffff);
7291         tw32_f(RX_CPU_BASE + CPU_PC, info.fw_base);
7292
7293         for (i = 0; i < 5; i++) {
7294                 if (tr32(RX_CPU_BASE + CPU_PC) == info.fw_base)
7295                         break;
7296                 tw32(RX_CPU_BASE + CPU_STATE, 0xffffffff);
7297                 tw32(RX_CPU_BASE + CPU_MODE,  CPU_MODE_HALT);
7298                 tw32_f(RX_CPU_BASE + CPU_PC, info.fw_base);
7299                 udelay(1000);
7300         }
7301         if (i >= 5) {
7302                 netdev_err(tp->dev, "%s fails to set RX CPU PC, is %08x "
7303                            "should be %08x\n", __func__,
7304                            tr32(RX_CPU_BASE + CPU_PC), info.fw_base);
7305                 return -ENODEV;
7306         }
7307         tw32(RX_CPU_BASE + CPU_STATE, 0xffffffff);
7308         tw32_f(RX_CPU_BASE + CPU_MODE,  0x00000000);
7309
7310         return 0;
7311 }
7312
7313 /* 5705 needs a special version of the TSO firmware.  */
7314
7315 /* tp->lock is held. */
7316 static int tg3_load_tso_firmware(struct tg3 *tp)
7317 {
7318         struct fw_info info;
7319         const __be32 *fw_data;
7320         unsigned long cpu_base, cpu_scratch_base, cpu_scratch_size;
7321         int err, i;
7322
7323         if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
7324                 return 0;
7325
7326         fw_data = (void *)tp->fw->data;
7327
7328         /* Firmware blob starts with version numbers, followed by
7329            start address and length. We are setting complete length.
7330            length = end_address_of_bss - start_address_of_text.
7331            Remainder is the blob to be loaded contiguously
7332            from start address. */
7333
7334         info.fw_base = be32_to_cpu(fw_data[1]);
7335         cpu_scratch_size = tp->fw_len;
7336         info.fw_len = tp->fw->size - 12;
7337         info.fw_data = &fw_data[3];
7338
7339         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
7340                 cpu_base = RX_CPU_BASE;
7341                 cpu_scratch_base = NIC_SRAM_MBUF_POOL_BASE5705;
7342         } else {
7343                 cpu_base = TX_CPU_BASE;
7344                 cpu_scratch_base = TX_CPU_SCRATCH_BASE;
7345                 cpu_scratch_size = TX_CPU_SCRATCH_SIZE;
7346         }
7347
7348         err = tg3_load_firmware_cpu(tp, cpu_base,
7349                                     cpu_scratch_base, cpu_scratch_size,
7350                                     &info);
7351         if (err)
7352                 return err;
7353
7354         /* Now startup the cpu. */
7355         tw32(cpu_base + CPU_STATE, 0xffffffff);
7356         tw32_f(cpu_base + CPU_PC, info.fw_base);
7357
7358         for (i = 0; i < 5; i++) {
7359                 if (tr32(cpu_base + CPU_PC) == info.fw_base)
7360                         break;
7361                 tw32(cpu_base + CPU_STATE, 0xffffffff);
7362                 tw32(cpu_base + CPU_MODE,  CPU_MODE_HALT);
7363                 tw32_f(cpu_base + CPU_PC, info.fw_base);
7364                 udelay(1000);
7365         }
7366         if (i >= 5) {
7367                 netdev_err(tp->dev,
7368                            "%s fails to set CPU PC, is %08x should be %08x\n",
7369                            __func__, tr32(cpu_base + CPU_PC), info.fw_base);
7370                 return -ENODEV;
7371         }
7372         tw32(cpu_base + CPU_STATE, 0xffffffff);
7373         tw32_f(cpu_base + CPU_MODE,  0x00000000);
7374         return 0;
7375 }
7376
7377
7378 static int tg3_set_mac_addr(struct net_device *dev, void *p)
7379 {
7380         struct tg3 *tp = netdev_priv(dev);
7381         struct sockaddr *addr = p;
7382         int err = 0, skip_mac_1 = 0;
7383
7384         if (!is_valid_ether_addr(addr->sa_data))
7385                 return -EINVAL;
7386
7387         memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
7388
7389         if (!netif_running(dev))
7390                 return 0;
7391
7392         if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) {
7393                 u32 addr0_high, addr0_low, addr1_high, addr1_low;
7394
7395                 addr0_high = tr32(MAC_ADDR_0_HIGH);
7396                 addr0_low = tr32(MAC_ADDR_0_LOW);
7397                 addr1_high = tr32(MAC_ADDR_1_HIGH);
7398                 addr1_low = tr32(MAC_ADDR_1_LOW);
7399
7400                 /* Skip MAC addr 1 if ASF is using it. */
7401                 if ((addr0_high != addr1_high || addr0_low != addr1_low) &&
7402                     !(addr1_high == 0 && addr1_low == 0))
7403                         skip_mac_1 = 1;
7404         }
7405         spin_lock_bh(&tp->lock);
7406         __tg3_set_mac_addr(tp, skip_mac_1);
7407         spin_unlock_bh(&tp->lock);
7408
7409         return err;
7410 }
7411
7412 /* tp->lock is held. */
7413 static void tg3_set_bdinfo(struct tg3 *tp, u32 bdinfo_addr,
7414                            dma_addr_t mapping, u32 maxlen_flags,
7415                            u32 nic_addr)
7416 {
7417         tg3_write_mem(tp,
7418                       (bdinfo_addr + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_HIGH),
7419                       ((u64) mapping >> 32));
7420         tg3_write_mem(tp,
7421                       (bdinfo_addr + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_LOW),
7422                       ((u64) mapping & 0xffffffff));
7423         tg3_write_mem(tp,
7424                       (bdinfo_addr + TG3_BDINFO_MAXLEN_FLAGS),
7425                        maxlen_flags);
7426
7427         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
7428                 tg3_write_mem(tp,
7429                               (bdinfo_addr + TG3_BDINFO_NIC_ADDR),
7430                               nic_addr);
7431 }
7432
7433 static void __tg3_set_rx_mode(struct net_device *);
7434 static void __tg3_set_coalesce(struct tg3 *tp, struct ethtool_coalesce *ec)
7435 {
7436         int i;
7437
7438         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)) {
7439                 tw32(HOSTCC_TXCOL_TICKS, ec->tx_coalesce_usecs);
7440                 tw32(HOSTCC_TXMAX_FRAMES, ec->tx_max_coalesced_frames);
7441                 tw32(HOSTCC_TXCOAL_MAXF_INT, ec->tx_max_coalesced_frames_irq);
7442         } else {
7443                 tw32(HOSTCC_TXCOL_TICKS, 0);
7444                 tw32(HOSTCC_TXMAX_FRAMES, 0);
7445                 tw32(HOSTCC_TXCOAL_MAXF_INT, 0);
7446         }
7447
7448         if (!(tp->tg3_flags2 & TG3_FLG2_USING_MSIX)) {
7449                 tw32(HOSTCC_RXCOL_TICKS, ec->rx_coalesce_usecs);
7450                 tw32(HOSTCC_RXMAX_FRAMES, ec->rx_max_coalesced_frames);
7451                 tw32(HOSTCC_RXCOAL_MAXF_INT, ec->rx_max_coalesced_frames_irq);
7452         } else {
7453                 tw32(HOSTCC_RXCOL_TICKS, 0);
7454                 tw32(HOSTCC_RXMAX_FRAMES, 0);
7455                 tw32(HOSTCC_RXCOAL_MAXF_INT, 0);
7456         }
7457
7458         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
7459                 u32 val = ec->stats_block_coalesce_usecs;
7460
7461                 tw32(HOSTCC_RXCOAL_TICK_INT, ec->rx_coalesce_usecs_irq);
7462                 tw32(HOSTCC_TXCOAL_TICK_INT, ec->tx_coalesce_usecs_irq);
7463
7464                 if (!netif_carrier_ok(tp->dev))
7465                         val = 0;
7466
7467                 tw32(HOSTCC_STAT_COAL_TICKS, val);
7468         }
7469
7470         for (i = 0; i < tp->irq_cnt - 1; i++) {
7471                 u32 reg;
7472
7473                 reg = HOSTCC_RXCOL_TICKS_VEC1 + i * 0x18;
7474                 tw32(reg, ec->rx_coalesce_usecs);
7475                 reg = HOSTCC_RXMAX_FRAMES_VEC1 + i * 0x18;
7476                 tw32(reg, ec->rx_max_coalesced_frames);
7477                 reg = HOSTCC_RXCOAL_MAXF_INT_VEC1 + i * 0x18;
7478                 tw32(reg, ec->rx_max_coalesced_frames_irq);
7479
7480                 if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS) {
7481                         reg = HOSTCC_TXCOL_TICKS_VEC1 + i * 0x18;
7482                         tw32(reg, ec->tx_coalesce_usecs);
7483                         reg = HOSTCC_TXMAX_FRAMES_VEC1 + i * 0x18;
7484                         tw32(reg, ec->tx_max_coalesced_frames);
7485                         reg = HOSTCC_TXCOAL_MAXF_INT_VEC1 + i * 0x18;
7486                         tw32(reg, ec->tx_max_coalesced_frames_irq);
7487                 }
7488         }
7489
7490         for (; i < tp->irq_max - 1; i++) {
7491                 tw32(HOSTCC_RXCOL_TICKS_VEC1 + i * 0x18, 0);
7492                 tw32(HOSTCC_RXMAX_FRAMES_VEC1 + i * 0x18, 0);
7493                 tw32(HOSTCC_RXCOAL_MAXF_INT_VEC1 + i * 0x18, 0);
7494
7495                 if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS) {
7496                         tw32(HOSTCC_TXCOL_TICKS_VEC1 + i * 0x18, 0);
7497                         tw32(HOSTCC_TXMAX_FRAMES_VEC1 + i * 0x18, 0);
7498                         tw32(HOSTCC_TXCOAL_MAXF_INT_VEC1 + i * 0x18, 0);
7499                 }
7500         }
7501 }
7502
7503 /* tp->lock is held. */
7504 static void tg3_rings_reset(struct tg3 *tp)
7505 {
7506         int i;
7507         u32 stblk, txrcb, rxrcb, limit;
7508         struct tg3_napi *tnapi = &tp->napi[0];
7509
7510         /* Disable all transmit rings but the first. */
7511         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
7512                 limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE * 16;
7513         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
7514                 limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE * 2;
7515         else
7516                 limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE;
7517
7518         for (txrcb = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE;
7519              txrcb < limit; txrcb += TG3_BDINFO_SIZE)
7520                 tg3_write_mem(tp, txrcb + TG3_BDINFO_MAXLEN_FLAGS,
7521                               BDINFO_FLAGS_DISABLED);
7522
7523
7524         /* Disable all receive return rings but the first. */
7525         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717)
7526                 limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE * 17;
7527         else if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
7528                 limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE * 16;
7529         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 ||
7530                  GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
7531                 limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE * 4;
7532         else
7533                 limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE;
7534
7535         for (rxrcb = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE;
7536              rxrcb < limit; rxrcb += TG3_BDINFO_SIZE)
7537                 tg3_write_mem(tp, rxrcb + TG3_BDINFO_MAXLEN_FLAGS,
7538                               BDINFO_FLAGS_DISABLED);
7539
7540         /* Disable interrupts */
7541         tw32_mailbox_f(tp->napi[0].int_mbox, 1);
7542
7543         /* Zero mailbox registers. */
7544         if (tp->tg3_flags & TG3_FLAG_SUPPORT_MSIX) {
7545                 for (i = 1; i < TG3_IRQ_MAX_VECS; i++) {
7546                         tp->napi[i].tx_prod = 0;
7547                         tp->napi[i].tx_cons = 0;
7548                         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
7549                                 tw32_mailbox(tp->napi[i].prodmbox, 0);
7550                         tw32_rx_mbox(tp->napi[i].consmbox, 0);
7551                         tw32_mailbox_f(tp->napi[i].int_mbox, 1);
7552                 }
7553                 if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS))
7554                         tw32_mailbox(tp->napi[0].prodmbox, 0);
7555         } else {
7556                 tp->napi[0].tx_prod = 0;
7557                 tp->napi[0].tx_cons = 0;
7558                 tw32_mailbox(tp->napi[0].prodmbox, 0);
7559                 tw32_rx_mbox(tp->napi[0].consmbox, 0);
7560         }
7561
7562         /* Make sure the NIC-based send BD rings are disabled. */
7563         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
7564                 u32 mbox = MAILBOX_SNDNIC_PROD_IDX_0 + TG3_64BIT_REG_LOW;
7565                 for (i = 0; i < 16; i++)
7566                         tw32_tx_mbox(mbox + i * 8, 0);
7567         }
7568
7569         txrcb = NIC_SRAM_SEND_RCB;
7570         rxrcb = NIC_SRAM_RCV_RET_RCB;
7571
7572         /* Clear status block in ram. */
7573         memset(tnapi->hw_status, 0, TG3_HW_STATUS_SIZE);
7574
7575         /* Set status block DMA address */
7576         tw32(HOSTCC_STATUS_BLK_HOST_ADDR + TG3_64BIT_REG_HIGH,
7577              ((u64) tnapi->status_mapping >> 32));
7578         tw32(HOSTCC_STATUS_BLK_HOST_ADDR + TG3_64BIT_REG_LOW,
7579              ((u64) tnapi->status_mapping & 0xffffffff));
7580
7581         if (tnapi->tx_ring) {
7582                 tg3_set_bdinfo(tp, txrcb, tnapi->tx_desc_mapping,
7583                                (TG3_TX_RING_SIZE <<
7584                                 BDINFO_FLAGS_MAXLEN_SHIFT),
7585                                NIC_SRAM_TX_BUFFER_DESC);
7586                 txrcb += TG3_BDINFO_SIZE;
7587         }
7588
7589         if (tnapi->rx_rcb) {
7590                 tg3_set_bdinfo(tp, rxrcb, tnapi->rx_rcb_mapping,
7591                                (TG3_RX_RCB_RING_SIZE(tp) <<
7592                                 BDINFO_FLAGS_MAXLEN_SHIFT), 0);
7593                 rxrcb += TG3_BDINFO_SIZE;
7594         }
7595
7596         stblk = HOSTCC_STATBLCK_RING1;
7597
7598         for (i = 1, tnapi++; i < tp->irq_cnt; i++, tnapi++) {
7599                 u64 mapping = (u64)tnapi->status_mapping;
7600                 tw32(stblk + TG3_64BIT_REG_HIGH, mapping >> 32);
7601                 tw32(stblk + TG3_64BIT_REG_LOW, mapping & 0xffffffff);
7602
7603                 /* Clear status block in ram. */
7604                 memset(tnapi->hw_status, 0, TG3_HW_STATUS_SIZE);
7605
7606                 if (tnapi->tx_ring) {
7607                         tg3_set_bdinfo(tp, txrcb, tnapi->tx_desc_mapping,
7608                                        (TG3_TX_RING_SIZE <<
7609                                         BDINFO_FLAGS_MAXLEN_SHIFT),
7610                                        NIC_SRAM_TX_BUFFER_DESC);
7611                         txrcb += TG3_BDINFO_SIZE;
7612                 }
7613
7614                 tg3_set_bdinfo(tp, rxrcb, tnapi->rx_rcb_mapping,
7615                                (TG3_RX_RCB_RING_SIZE(tp) <<
7616                                 BDINFO_FLAGS_MAXLEN_SHIFT), 0);
7617
7618                 stblk += 8;
7619                 rxrcb += TG3_BDINFO_SIZE;
7620         }
7621 }
7622
7623 /* tp->lock is held. */
7624 static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
7625 {
7626         u32 val, rdmac_mode;
7627         int i, err, limit;
7628         struct tg3_rx_prodring_set *tpr = &tp->prodring[0];
7629
7630         tg3_disable_ints(tp);
7631
7632         tg3_stop_fw(tp);
7633
7634         tg3_write_sig_pre_reset(tp, RESET_KIND_INIT);
7635
7636         if (tp->tg3_flags & TG3_FLAG_INIT_COMPLETE)
7637                 tg3_abort_hw(tp, 1);
7638
7639         if (reset_phy)
7640                 tg3_phy_reset(tp);
7641
7642         err = tg3_chip_reset(tp);
7643         if (err)
7644                 return err;
7645
7646         tg3_write_sig_legacy(tp, RESET_KIND_INIT);
7647
7648         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX) {
7649                 val = tr32(TG3_CPMU_CTRL);
7650                 val &= ~(CPMU_CTRL_LINK_AWARE_MODE | CPMU_CTRL_LINK_IDLE_MODE);
7651                 tw32(TG3_CPMU_CTRL, val);
7652
7653                 val = tr32(TG3_CPMU_LSPD_10MB_CLK);
7654                 val &= ~CPMU_LSPD_10MB_MACCLK_MASK;
7655                 val |= CPMU_LSPD_10MB_MACCLK_6_25;
7656                 tw32(TG3_CPMU_LSPD_10MB_CLK, val);
7657
7658                 val = tr32(TG3_CPMU_LNK_AWARE_PWRMD);
7659                 val &= ~CPMU_LNK_AWARE_MACCLK_MASK;
7660                 val |= CPMU_LNK_AWARE_MACCLK_6_25;
7661                 tw32(TG3_CPMU_LNK_AWARE_PWRMD, val);
7662
7663                 val = tr32(TG3_CPMU_HST_ACC);
7664                 val &= ~CPMU_HST_ACC_MACCLK_MASK;
7665                 val |= CPMU_HST_ACC_MACCLK_6_25;
7666                 tw32(TG3_CPMU_HST_ACC, val);
7667         }
7668
7669         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780) {
7670                 val = tr32(PCIE_PWR_MGMT_THRESH) & ~PCIE_PWR_MGMT_L1_THRESH_MSK;
7671                 val |= PCIE_PWR_MGMT_EXT_ASPM_TMR_EN |
7672                        PCIE_PWR_MGMT_L1_THRESH_4MS;
7673                 tw32(PCIE_PWR_MGMT_THRESH, val);
7674
7675                 val = tr32(TG3_PCIE_EIDLE_DELAY) & ~TG3_PCIE_EIDLE_DELAY_MASK;
7676                 tw32(TG3_PCIE_EIDLE_DELAY, val | TG3_PCIE_EIDLE_DELAY_13_CLKS);
7677
7678                 tw32(TG3_CORR_ERR_STAT, TG3_CORR_ERR_STAT_CLEAR);
7679
7680                 val = tr32(TG3_PCIE_LNKCTL) & ~TG3_PCIE_LNKCTL_L1_PLL_PD_EN;
7681                 tw32(TG3_PCIE_LNKCTL, val | TG3_PCIE_LNKCTL_L1_PLL_PD_DIS);
7682         }
7683
7684         if (tp->tg3_flags3 & TG3_FLG3_L1PLLPD_EN) {
7685                 u32 grc_mode = tr32(GRC_MODE);
7686
7687                 /* Access the lower 1K of PL PCIE block registers. */
7688                 val = grc_mode & ~GRC_MODE_PCIE_PORT_MASK;
7689                 tw32(GRC_MODE, val | GRC_MODE_PCIE_PL_SEL);
7690
7691                 val = tr32(TG3_PCIE_TLDLPL_PORT + TG3_PCIE_PL_LO_PHYCTL1);
7692                 tw32(TG3_PCIE_TLDLPL_PORT + TG3_PCIE_PL_LO_PHYCTL1,
7693                      val | TG3_PCIE_PL_LO_PHYCTL1_L1PLLPD_EN);
7694
7695                 tw32(GRC_MODE, grc_mode);
7696         }
7697
7698         if (tp->pci_chip_rev_id == CHIPREV_ID_57765_A0) {
7699                 u32 grc_mode = tr32(GRC_MODE);
7700
7701                 /* Access the lower 1K of PL PCIE block registers. */
7702                 val = grc_mode & ~GRC_MODE_PCIE_PORT_MASK;
7703                 tw32(GRC_MODE, val | GRC_MODE_PCIE_PL_SEL);
7704
7705                 val = tr32(TG3_PCIE_TLDLPL_PORT + TG3_PCIE_PL_LO_PHYCTL5);
7706                 tw32(TG3_PCIE_TLDLPL_PORT + TG3_PCIE_PL_LO_PHYCTL5,
7707                      val | TG3_PCIE_PL_LO_PHYCTL5_DIS_L2CLKREQ);
7708
7709                 tw32(GRC_MODE, grc_mode);
7710
7711                 val = tr32(TG3_CPMU_LSPD_10MB_CLK);
7712                 val &= ~CPMU_LSPD_10MB_MACCLK_MASK;
7713                 val |= CPMU_LSPD_10MB_MACCLK_6_25;
7714                 tw32(TG3_CPMU_LSPD_10MB_CLK, val);
7715         }
7716
7717         /* This works around an issue with Athlon chipsets on
7718          * B3 tigon3 silicon.  This bit has no effect on any
7719          * other revision.  But do not set this on PCI Express
7720          * chips and don't even touch the clocks if the CPMU is present.
7721          */
7722         if (!(tp->tg3_flags & TG3_FLAG_CPMU_PRESENT)) {
7723                 if (!(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS))
7724                         tp->pci_clock_ctrl |= CLOCK_CTRL_DELAY_PCI_GRANT;
7725                 tw32_f(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl);
7726         }
7727
7728         if (tp->pci_chip_rev_id == CHIPREV_ID_5704_A0 &&
7729             (tp->tg3_flags & TG3_FLAG_PCIX_MODE)) {
7730                 val = tr32(TG3PCI_PCISTATE);
7731                 val |= PCISTATE_RETRY_SAME_DMA;
7732                 tw32(TG3PCI_PCISTATE, val);
7733         }
7734
7735         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
7736                 /* Allow reads and writes to the
7737                  * APE register and memory space.
7738                  */
7739                 val = tr32(TG3PCI_PCISTATE);
7740                 val |= PCISTATE_ALLOW_APE_CTLSPC_WR |
7741                        PCISTATE_ALLOW_APE_SHMEM_WR |
7742                        PCISTATE_ALLOW_APE_PSPACE_WR;
7743                 tw32(TG3PCI_PCISTATE, val);
7744         }
7745
7746         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5704_BX) {
7747                 /* Enable some hw fixes.  */
7748                 val = tr32(TG3PCI_MSI_DATA);
7749                 val |= (1 << 26) | (1 << 28) | (1 << 29);
7750                 tw32(TG3PCI_MSI_DATA, val);
7751         }
7752
7753         /* Descriptor ring init may make accesses to the
7754          * NIC SRAM area to setup the TX descriptors, so we
7755          * can only do this after the hardware has been
7756          * successfully reset.
7757          */
7758         err = tg3_init_rings(tp);
7759         if (err)
7760                 return err;
7761
7762         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
7763             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765) {
7764                 val = tr32(TG3PCI_DMA_RW_CTRL) &
7765                       ~DMA_RWCTRL_DIS_CACHE_ALIGNMENT;
7766                 if (tp->pci_chip_rev_id == CHIPREV_ID_57765_A0)
7767                         val &= ~DMA_RWCTRL_CRDRDR_RDMA_MRRS_MSK;
7768                 tw32(TG3PCI_DMA_RW_CTRL, val | tp->dma_rwctrl);
7769         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5784 &&
7770                    GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5761) {
7771                 /* This value is determined during the probe time DMA
7772                  * engine test, tg3_test_dma.
7773                  */
7774                 tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
7775         }
7776
7777         tp->grc_mode &= ~(GRC_MODE_HOST_SENDBDS |
7778                           GRC_MODE_4X_NIC_SEND_RINGS |
7779                           GRC_MODE_NO_TX_PHDR_CSUM |
7780                           GRC_MODE_NO_RX_PHDR_CSUM);
7781         tp->grc_mode |= GRC_MODE_HOST_SENDBDS;
7782
7783         /* Pseudo-header checksum is done by hardware logic and not
7784          * the offload processers, so make the chip do the pseudo-
7785          * header checksums on receive.  For transmit it is more
7786          * convenient to do the pseudo-header checksum in software
7787          * as Linux does that on transmit for us in all cases.
7788          */
7789         tp->grc_mode |= GRC_MODE_NO_TX_PHDR_CSUM;
7790
7791         tw32(GRC_MODE,
7792              tp->grc_mode |
7793              (GRC_MODE_IRQ_ON_MAC_ATTN | GRC_MODE_HOST_STACKUP));
7794
7795         /* Setup the timer prescalar register.  Clock is always 66Mhz. */
7796         val = tr32(GRC_MISC_CFG);
7797         val &= ~0xff;
7798         val |= (65 << GRC_MISC_CFG_PRESCALAR_SHIFT);
7799         tw32(GRC_MISC_CFG, val);
7800
7801         /* Initialize MBUF/DESC pool. */
7802         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) {
7803                 /* Do nothing.  */
7804         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5705) {
7805                 tw32(BUFMGR_MB_POOL_ADDR, NIC_SRAM_MBUF_POOL_BASE);
7806                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704)
7807                         tw32(BUFMGR_MB_POOL_SIZE, NIC_SRAM_MBUF_POOL_SIZE64);
7808                 else
7809                         tw32(BUFMGR_MB_POOL_SIZE, NIC_SRAM_MBUF_POOL_SIZE96);
7810                 tw32(BUFMGR_DMA_DESC_POOL_ADDR, NIC_SRAM_DMA_DESC_POOL_BASE);
7811                 tw32(BUFMGR_DMA_DESC_POOL_SIZE, NIC_SRAM_DMA_DESC_POOL_SIZE);
7812         } else if (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) {
7813                 int fw_len;
7814
7815                 fw_len = tp->fw_len;
7816                 fw_len = (fw_len + (0x80 - 1)) & ~(0x80 - 1);
7817                 tw32(BUFMGR_MB_POOL_ADDR,
7818                      NIC_SRAM_MBUF_POOL_BASE5705 + fw_len);
7819                 tw32(BUFMGR_MB_POOL_SIZE,
7820                      NIC_SRAM_MBUF_POOL_SIZE5705 - fw_len - 0xa00);
7821         }
7822
7823         if (tp->dev->mtu <= ETH_DATA_LEN) {
7824                 tw32(BUFMGR_MB_RDMA_LOW_WATER,
7825                      tp->bufmgr_config.mbuf_read_dma_low_water);
7826                 tw32(BUFMGR_MB_MACRX_LOW_WATER,
7827                      tp->bufmgr_config.mbuf_mac_rx_low_water);
7828                 tw32(BUFMGR_MB_HIGH_WATER,
7829                      tp->bufmgr_config.mbuf_high_water);
7830         } else {
7831                 tw32(BUFMGR_MB_RDMA_LOW_WATER,
7832                      tp->bufmgr_config.mbuf_read_dma_low_water_jumbo);
7833                 tw32(BUFMGR_MB_MACRX_LOW_WATER,
7834                      tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo);
7835                 tw32(BUFMGR_MB_HIGH_WATER,
7836                      tp->bufmgr_config.mbuf_high_water_jumbo);
7837         }
7838         tw32(BUFMGR_DMA_LOW_WATER,
7839              tp->bufmgr_config.dma_low_water);
7840         tw32(BUFMGR_DMA_HIGH_WATER,
7841              tp->bufmgr_config.dma_high_water);
7842
7843         tw32(BUFMGR_MODE, BUFMGR_MODE_ENABLE | BUFMGR_MODE_ATTN_ENABLE);
7844         for (i = 0; i < 2000; i++) {
7845                 if (tr32(BUFMGR_MODE) & BUFMGR_MODE_ENABLE)
7846                         break;
7847                 udelay(10);
7848         }
7849         if (i >= 2000) {
7850                 netdev_err(tp->dev, "%s cannot enable BUFMGR\n", __func__);
7851                 return -ENODEV;
7852         }
7853
7854         /* Setup replenish threshold. */
7855         val = tp->rx_pending / 8;
7856         if (val == 0)
7857                 val = 1;
7858         else if (val > tp->rx_std_max_post)
7859                 val = tp->rx_std_max_post;
7860         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
7861                 if (tp->pci_chip_rev_id == CHIPREV_ID_5906_A1)
7862                         tw32(ISO_PKT_TX, (tr32(ISO_PKT_TX) & ~0x3) | 0x2);
7863
7864                 if (val > (TG3_RX_INTERNAL_RING_SZ_5906 / 2))
7865                         val = TG3_RX_INTERNAL_RING_SZ_5906 / 2;
7866         }
7867
7868         tw32(RCVBDI_STD_THRESH, val);
7869
7870         /* Initialize TG3_BDINFO's at:
7871          *  RCVDBDI_STD_BD:     standard eth size rx ring
7872          *  RCVDBDI_JUMBO_BD:   jumbo frame rx ring
7873          *  RCVDBDI_MINI_BD:    small frame rx ring (??? does not work)
7874          *
7875          * like so:
7876          *  TG3_BDINFO_HOST_ADDR:       high/low parts of DMA address of ring
7877          *  TG3_BDINFO_MAXLEN_FLAGS:    (rx max buffer size << 16) |
7878          *                              ring attribute flags
7879          *  TG3_BDINFO_NIC_ADDR:        location of descriptors in nic SRAM
7880          *
7881          * Standard receive ring @ NIC_SRAM_RX_BUFFER_DESC, 512 entries.
7882          * Jumbo receive ring @ NIC_SRAM_RX_JUMBO_BUFFER_DESC, 256 entries.
7883          *
7884          * The size of each ring is fixed in the firmware, but the location is
7885          * configurable.
7886          */
7887         tw32(RCVDBDI_STD_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_HIGH,
7888              ((u64) tpr->rx_std_mapping >> 32));
7889         tw32(RCVDBDI_STD_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_LOW,
7890              ((u64) tpr->rx_std_mapping & 0xffffffff));
7891         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5717)
7892                 tw32(RCVDBDI_STD_BD + TG3_BDINFO_NIC_ADDR,
7893                      NIC_SRAM_RX_BUFFER_DESC);
7894
7895         /* Disable the mini ring */
7896         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
7897                 tw32(RCVDBDI_MINI_BD + TG3_BDINFO_MAXLEN_FLAGS,
7898                      BDINFO_FLAGS_DISABLED);
7899
7900         /* Program the jumbo buffer descriptor ring control
7901          * blocks on those devices that have them.
7902          */
7903         if ((tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) &&
7904             !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
7905                 /* Setup replenish threshold. */
7906                 tw32(RCVBDI_JUMBO_THRESH, tp->rx_jumbo_pending / 8);
7907
7908                 if (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE) {
7909                         tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_HIGH,
7910                              ((u64) tpr->rx_jmb_mapping >> 32));
7911                         tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_LOW,
7912                              ((u64) tpr->rx_jmb_mapping & 0xffffffff));
7913                         tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_MAXLEN_FLAGS,
7914                              (RX_JUMBO_MAX_SIZE << BDINFO_FLAGS_MAXLEN_SHIFT) |
7915                              BDINFO_FLAGS_USE_EXT_RECV);
7916                         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5717)
7917                                 tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_NIC_ADDR,
7918                                      NIC_SRAM_RX_JUMBO_BUFFER_DESC);
7919                 } else {
7920                         tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_MAXLEN_FLAGS,
7921                              BDINFO_FLAGS_DISABLED);
7922                 }
7923
7924                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
7925                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
7926                         val = (RX_STD_MAX_SIZE_5705 << BDINFO_FLAGS_MAXLEN_SHIFT) |
7927                               (TG3_RX_STD_DMA_SZ << 2);
7928                 else
7929                         val = TG3_RX_STD_DMA_SZ << BDINFO_FLAGS_MAXLEN_SHIFT;
7930         } else
7931                 val = RX_STD_MAX_SIZE_5705 << BDINFO_FLAGS_MAXLEN_SHIFT;
7932
7933         tw32(RCVDBDI_STD_BD + TG3_BDINFO_MAXLEN_FLAGS, val);
7934
7935         tpr->rx_std_prod_idx = tp->rx_pending;
7936         tw32_rx_mbox(TG3_RX_STD_PROD_IDX_REG, tpr->rx_std_prod_idx);
7937
7938         tpr->rx_jmb_prod_idx = (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE) ?
7939                           tp->rx_jumbo_pending : 0;
7940         tw32_rx_mbox(TG3_RX_JMB_PROD_IDX_REG, tpr->rx_jmb_prod_idx);
7941
7942         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
7943             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765) {
7944                 tw32(STD_REPLENISH_LWM, 32);
7945                 tw32(JMB_REPLENISH_LWM, 16);
7946         }
7947
7948         tg3_rings_reset(tp);
7949
7950         /* Initialize MAC address and backoff seed. */
7951         __tg3_set_mac_addr(tp, 0);
7952
7953         /* MTU + ethernet header + FCS + optional VLAN tag */
7954         tw32(MAC_RX_MTU_SIZE,
7955              tp->dev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN);
7956
7957         /* The slot time is changed by tg3_setup_phy if we
7958          * run at gigabit with half duplex.
7959          */
7960         tw32(MAC_TX_LENGTHS,
7961              (2 << TX_LENGTHS_IPG_CRS_SHIFT) |
7962              (6 << TX_LENGTHS_IPG_SHIFT) |
7963              (32 << TX_LENGTHS_SLOT_TIME_SHIFT));
7964
7965         /* Receive rules. */
7966         tw32(MAC_RCV_RULE_CFG, RCV_RULE_CFG_DEFAULT_CLASS);
7967         tw32(RCVLPC_CONFIG, 0x0181);
7968
7969         /* Calculate RDMAC_MODE setting early, we need it to determine
7970          * the RCVLPC_STATE_ENABLE mask.
7971          */
7972         rdmac_mode = (RDMAC_MODE_ENABLE | RDMAC_MODE_TGTABORT_ENAB |
7973                       RDMAC_MODE_MSTABORT_ENAB | RDMAC_MODE_PARITYERR_ENAB |
7974                       RDMAC_MODE_ADDROFLOW_ENAB | RDMAC_MODE_FIFOOFLOW_ENAB |
7975                       RDMAC_MODE_FIFOURUN_ENAB | RDMAC_MODE_FIFOOREAD_ENAB |
7976                       RDMAC_MODE_LNGREAD_ENAB);
7977
7978         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717)
7979                 rdmac_mode |= RDMAC_MODE_MULT_DMA_RD_DIS;
7980
7981         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
7982             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
7983             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
7984                 rdmac_mode |= RDMAC_MODE_BD_SBD_CRPT_ENAB |
7985                               RDMAC_MODE_MBUF_RBD_CRPT_ENAB |
7986                               RDMAC_MODE_MBUF_SBD_CRPT_ENAB;
7987
7988         /* If statement applies to 5705 and 5750 PCI devices only */
7989         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 &&
7990              tp->pci_chip_rev_id != CHIPREV_ID_5705_A0) ||
7991             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750)) {
7992                 if (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE &&
7993                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
7994                         rdmac_mode |= RDMAC_MODE_FIFO_SIZE_128;
7995                 } else if (!(tr32(TG3PCI_PCISTATE) & PCISTATE_BUS_SPEED_HIGH) &&
7996                            !(tp->tg3_flags2 & TG3_FLG2_IS_5788)) {
7997                         rdmac_mode |= RDMAC_MODE_FIFO_LONG_BURST;
7998                 }
7999         }
8000
8001         if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS)
8002                 rdmac_mode |= RDMAC_MODE_FIFO_LONG_BURST;
8003
8004         if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
8005                 rdmac_mode |= RDMAC_MODE_IPV4_LSO_EN;
8006
8007         if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_3) ||
8008             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
8009             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
8010                 rdmac_mode |= RDMAC_MODE_IPV6_LSO_EN;
8011
8012         /* Receive/send statistics. */
8013         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) {
8014                 val = tr32(RCVLPC_STATS_ENABLE);
8015                 val &= ~RCVLPC_STATSENAB_DACK_FIX;
8016                 tw32(RCVLPC_STATS_ENABLE, val);
8017         } else if ((rdmac_mode & RDMAC_MODE_FIFO_SIZE_128) &&
8018                    (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE)) {
8019                 val = tr32(RCVLPC_STATS_ENABLE);
8020                 val &= ~RCVLPC_STATSENAB_LNGBRST_RFIX;
8021                 tw32(RCVLPC_STATS_ENABLE, val);
8022         } else {
8023                 tw32(RCVLPC_STATS_ENABLE, 0xffffff);
8024         }
8025         tw32(RCVLPC_STATSCTRL, RCVLPC_STATSCTRL_ENABLE);
8026         tw32(SNDDATAI_STATSENAB, 0xffffff);
8027         tw32(SNDDATAI_STATSCTRL,
8028              (SNDDATAI_SCTRL_ENABLE |
8029               SNDDATAI_SCTRL_FASTUPD));
8030
8031         /* Setup host coalescing engine. */
8032         tw32(HOSTCC_MODE, 0);
8033         for (i = 0; i < 2000; i++) {
8034                 if (!(tr32(HOSTCC_MODE) & HOSTCC_MODE_ENABLE))
8035                         break;
8036                 udelay(10);
8037         }
8038
8039         __tg3_set_coalesce(tp, &tp->coal);
8040
8041         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
8042                 /* Status/statistics block address.  See tg3_timer,
8043                  * the tg3_periodic_fetch_stats call there, and
8044                  * tg3_get_stats to see how this works for 5705/5750 chips.
8045                  */
8046                 tw32(HOSTCC_STATS_BLK_HOST_ADDR + TG3_64BIT_REG_HIGH,
8047                      ((u64) tp->stats_mapping >> 32));
8048                 tw32(HOSTCC_STATS_BLK_HOST_ADDR + TG3_64BIT_REG_LOW,
8049                      ((u64) tp->stats_mapping & 0xffffffff));
8050                 tw32(HOSTCC_STATS_BLK_NIC_ADDR, NIC_SRAM_STATS_BLK);
8051
8052                 tw32(HOSTCC_STATUS_BLK_NIC_ADDR, NIC_SRAM_STATUS_BLK);
8053
8054                 /* Clear statistics and status block memory areas */
8055                 for (i = NIC_SRAM_STATS_BLK;
8056                      i < NIC_SRAM_STATUS_BLK + TG3_HW_STATUS_SIZE;
8057                      i += sizeof(u32)) {
8058                         tg3_write_mem(tp, i, 0);
8059                         udelay(40);
8060                 }
8061         }
8062
8063         tw32(HOSTCC_MODE, HOSTCC_MODE_ENABLE | tp->coalesce_mode);
8064
8065         tw32(RCVCC_MODE, RCVCC_MODE_ENABLE | RCVCC_MODE_ATTN_ENABLE);
8066         tw32(RCVLPC_MODE, RCVLPC_MODE_ENABLE);
8067         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
8068                 tw32(RCVLSC_MODE, RCVLSC_MODE_ENABLE | RCVLSC_MODE_ATTN_ENABLE);
8069
8070         if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES) {
8071                 tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
8072                 /* reset to prevent losing 1st rx packet intermittently */
8073                 tw32_f(MAC_RX_MODE, RX_MODE_RESET);
8074                 udelay(10);
8075         }
8076
8077         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
8078                 tp->mac_mode &= MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN;
8079         else
8080                 tp->mac_mode = 0;
8081         tp->mac_mode |= MAC_MODE_TXSTAT_ENABLE | MAC_MODE_RXSTAT_ENABLE |
8082                 MAC_MODE_TDE_ENABLE | MAC_MODE_RDE_ENABLE | MAC_MODE_FHDE_ENABLE;
8083         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
8084             !(tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) &&
8085             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700)
8086                 tp->mac_mode |= MAC_MODE_LINK_POLARITY;
8087         tw32_f(MAC_MODE, tp->mac_mode | MAC_MODE_RXSTAT_CLEAR | MAC_MODE_TXSTAT_CLEAR);
8088         udelay(40);
8089
8090         /* tp->grc_local_ctrl is partially set up during tg3_get_invariants().
8091          * If TG3_FLG2_IS_NIC is zero, we should read the
8092          * register to preserve the GPIO settings for LOMs. The GPIOs,
8093          * whether used as inputs or outputs, are set by boot code after
8094          * reset.
8095          */
8096         if (!(tp->tg3_flags2 & TG3_FLG2_IS_NIC)) {
8097                 u32 gpio_mask;
8098
8099                 gpio_mask = GRC_LCLCTRL_GPIO_OE0 | GRC_LCLCTRL_GPIO_OE1 |
8100                             GRC_LCLCTRL_GPIO_OE2 | GRC_LCLCTRL_GPIO_OUTPUT0 |
8101                             GRC_LCLCTRL_GPIO_OUTPUT1 | GRC_LCLCTRL_GPIO_OUTPUT2;
8102
8103                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752)
8104                         gpio_mask |= GRC_LCLCTRL_GPIO_OE3 |
8105                                      GRC_LCLCTRL_GPIO_OUTPUT3;
8106
8107                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755)
8108                         gpio_mask |= GRC_LCLCTRL_GPIO_UART_SEL;
8109
8110                 tp->grc_local_ctrl &= ~gpio_mask;
8111                 tp->grc_local_ctrl |= tr32(GRC_LOCAL_CTRL) & gpio_mask;
8112
8113                 /* GPIO1 must be driven high for eeprom write protect */
8114                 if (tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT)
8115                         tp->grc_local_ctrl |= (GRC_LCLCTRL_GPIO_OE1 |
8116                                                GRC_LCLCTRL_GPIO_OUTPUT1);
8117         }
8118         tw32_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl);
8119         udelay(100);
8120
8121         if (tp->tg3_flags2 & TG3_FLG2_USING_MSIX) {
8122                 val = tr32(MSGINT_MODE);
8123                 val |= MSGINT_MODE_MULTIVEC_EN | MSGINT_MODE_ENABLE;
8124                 tw32(MSGINT_MODE, val);
8125         }
8126
8127         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
8128                 tw32_f(DMAC_MODE, DMAC_MODE_ENABLE);
8129                 udelay(40);
8130         }
8131
8132         val = (WDMAC_MODE_ENABLE | WDMAC_MODE_TGTABORT_ENAB |
8133                WDMAC_MODE_MSTABORT_ENAB | WDMAC_MODE_PARITYERR_ENAB |
8134                WDMAC_MODE_ADDROFLOW_ENAB | WDMAC_MODE_FIFOOFLOW_ENAB |
8135                WDMAC_MODE_FIFOURUN_ENAB | WDMAC_MODE_FIFOOREAD_ENAB |
8136                WDMAC_MODE_LNGREAD_ENAB);
8137
8138         /* If statement applies to 5705 and 5750 PCI devices only */
8139         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 &&
8140              tp->pci_chip_rev_id != CHIPREV_ID_5705_A0) ||
8141             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750) {
8142                 if ((tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) &&
8143                     (tp->pci_chip_rev_id == CHIPREV_ID_5705_A1 ||
8144                      tp->pci_chip_rev_id == CHIPREV_ID_5705_A2)) {
8145                         /* nothing */
8146                 } else if (!(tr32(TG3PCI_PCISTATE) & PCISTATE_BUS_SPEED_HIGH) &&
8147                            !(tp->tg3_flags2 & TG3_FLG2_IS_5788) &&
8148                            !(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS)) {
8149                         val |= WDMAC_MODE_RX_ACCEL;
8150                 }
8151         }
8152
8153         /* Enable host coalescing bug fix */
8154         if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
8155                 val |= WDMAC_MODE_STATUS_TAG_FIX;
8156
8157         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
8158                 val |= WDMAC_MODE_BURST_ALL_DATA;
8159
8160         tw32_f(WDMAC_MODE, val);
8161         udelay(40);
8162
8163         if (tp->tg3_flags & TG3_FLAG_PCIX_MODE) {
8164                 u16 pcix_cmd;
8165
8166                 pci_read_config_word(tp->pdev, tp->pcix_cap + PCI_X_CMD,
8167                                      &pcix_cmd);
8168                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703) {
8169                         pcix_cmd &= ~PCI_X_CMD_MAX_READ;
8170                         pcix_cmd |= PCI_X_CMD_READ_2K;
8171                 } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
8172                         pcix_cmd &= ~(PCI_X_CMD_MAX_SPLIT | PCI_X_CMD_MAX_READ);
8173                         pcix_cmd |= PCI_X_CMD_READ_2K;
8174                 }
8175                 pci_write_config_word(tp->pdev, tp->pcix_cap + PCI_X_CMD,
8176                                       pcix_cmd);
8177         }
8178
8179         tw32_f(RDMAC_MODE, rdmac_mode);
8180         udelay(40);
8181
8182         tw32(RCVDCC_MODE, RCVDCC_MODE_ENABLE | RCVDCC_MODE_ATTN_ENABLE);
8183         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
8184                 tw32(MBFREE_MODE, MBFREE_MODE_ENABLE);
8185
8186         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761)
8187                 tw32(SNDDATAC_MODE,
8188                      SNDDATAC_MODE_ENABLE | SNDDATAC_MODE_CDELAY);
8189         else
8190                 tw32(SNDDATAC_MODE, SNDDATAC_MODE_ENABLE);
8191
8192         tw32(SNDBDC_MODE, SNDBDC_MODE_ENABLE | SNDBDC_MODE_ATTN_ENABLE);
8193         tw32(RCVBDI_MODE, RCVBDI_MODE_ENABLE | RCVBDI_MODE_RCB_ATTN_ENAB);
8194         tw32(RCVDBDI_MODE, RCVDBDI_MODE_ENABLE | RCVDBDI_MODE_INV_RING_SZ);
8195         tw32(SNDDATAI_MODE, SNDDATAI_MODE_ENABLE);
8196         if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
8197                 tw32(SNDDATAI_MODE, SNDDATAI_MODE_ENABLE | 0x8);
8198         val = SNDBDI_MODE_ENABLE | SNDBDI_MODE_ATTN_ENABLE;
8199         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
8200                 val |= SNDBDI_MODE_MULTI_TXQ_EN;
8201         tw32(SNDBDI_MODE, val);
8202         tw32(SNDBDS_MODE, SNDBDS_MODE_ENABLE | SNDBDS_MODE_ATTN_ENABLE);
8203
8204         if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0) {
8205                 err = tg3_load_5701_a0_firmware_fix(tp);
8206                 if (err)
8207                         return err;
8208         }
8209
8210         if (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) {
8211                 err = tg3_load_tso_firmware(tp);
8212                 if (err)
8213                         return err;
8214         }
8215
8216         tp->tx_mode = TX_MODE_ENABLE;
8217         tw32_f(MAC_TX_MODE, tp->tx_mode);
8218         udelay(100);
8219
8220         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS) {
8221                 u32 reg = MAC_RSS_INDIR_TBL_0;
8222                 u8 *ent = (u8 *)&val;
8223
8224                 /* Setup the indirection table */
8225                 for (i = 0; i < TG3_RSS_INDIR_TBL_SIZE; i++) {
8226                         int idx = i % sizeof(val);
8227
8228                         ent[idx] = i % (tp->irq_cnt - 1);
8229                         if (idx == sizeof(val) - 1) {
8230                                 tw32(reg, val);
8231                                 reg += 4;
8232                         }
8233                 }
8234
8235                 /* Setup the "secret" hash key. */
8236                 tw32(MAC_RSS_HASH_KEY_0, 0x5f865437);
8237                 tw32(MAC_RSS_HASH_KEY_1, 0xe4ac62cc);
8238                 tw32(MAC_RSS_HASH_KEY_2, 0x50103a45);
8239                 tw32(MAC_RSS_HASH_KEY_3, 0x36621985);
8240                 tw32(MAC_RSS_HASH_KEY_4, 0xbf14c0e8);
8241                 tw32(MAC_RSS_HASH_KEY_5, 0x1bc27a1e);
8242                 tw32(MAC_RSS_HASH_KEY_6, 0x84f4b556);
8243                 tw32(MAC_RSS_HASH_KEY_7, 0x094ea6fe);
8244                 tw32(MAC_RSS_HASH_KEY_8, 0x7dda01e7);
8245                 tw32(MAC_RSS_HASH_KEY_9, 0xc04d7481);
8246         }
8247
8248         tp->rx_mode = RX_MODE_ENABLE;
8249         if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
8250                 tp->rx_mode |= RX_MODE_IPV6_CSUM_ENABLE;
8251
8252         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS)
8253                 tp->rx_mode |= RX_MODE_RSS_ENABLE |
8254                                RX_MODE_RSS_ITBL_HASH_BITS_7 |
8255                                RX_MODE_RSS_IPV6_HASH_EN |
8256                                RX_MODE_RSS_TCP_IPV6_HASH_EN |
8257                                RX_MODE_RSS_IPV4_HASH_EN |
8258                                RX_MODE_RSS_TCP_IPV4_HASH_EN;
8259
8260         tw32_f(MAC_RX_MODE, tp->rx_mode);
8261         udelay(10);
8262
8263         tw32(MAC_LED_CTRL, tp->led_ctrl);
8264
8265         tw32(MAC_MI_STAT, MAC_MI_STAT_LNKSTAT_ATTN_ENAB);
8266         if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) {
8267                 tw32_f(MAC_RX_MODE, RX_MODE_RESET);
8268                 udelay(10);
8269         }
8270         tw32_f(MAC_RX_MODE, tp->rx_mode);
8271         udelay(10);
8272
8273         if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) {
8274                 if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) &&
8275                         !(tp->tg3_flags2 & TG3_FLG2_SERDES_PREEMPHASIS)) {
8276                         /* Set drive transmission level to 1.2V  */
8277                         /* only if the signal pre-emphasis bit is not set  */
8278                         val = tr32(MAC_SERDES_CFG);
8279                         val &= 0xfffff000;
8280                         val |= 0x880;
8281                         tw32(MAC_SERDES_CFG, val);
8282                 }
8283                 if (tp->pci_chip_rev_id == CHIPREV_ID_5703_A1)
8284                         tw32(MAC_SERDES_CFG, 0x616000);
8285         }
8286
8287         /* Prevent chip from dropping frames when flow control
8288          * is enabled.
8289          */
8290         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
8291                 val = 1;
8292         else
8293                 val = 2;
8294         tw32_f(MAC_LOW_WMARK_MAX_RX_FRAME, val);
8295
8296         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 &&
8297             (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)) {
8298                 /* Use hardware link auto-negotiation */
8299                 tp->tg3_flags2 |= TG3_FLG2_HW_AUTONEG;
8300         }
8301
8302         if ((tp->tg3_flags2 & TG3_FLG2_MII_SERDES) &&
8303             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714)) {
8304                 u32 tmp;
8305
8306                 tmp = tr32(SERDES_RX_CTRL);
8307                 tw32(SERDES_RX_CTRL, tmp | SERDES_RX_SIG_DETECT);
8308                 tp->grc_local_ctrl &= ~GRC_LCLCTRL_USE_EXT_SIG_DETECT;
8309                 tp->grc_local_ctrl |= GRC_LCLCTRL_USE_SIG_DETECT;
8310                 tw32(GRC_LOCAL_CTRL, tp->grc_local_ctrl);
8311         }
8312
8313         if (!(tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB)) {
8314                 if (tp->link_config.phy_is_low_power) {
8315                         tp->link_config.phy_is_low_power = 0;
8316                         tp->link_config.speed = tp->link_config.orig_speed;
8317                         tp->link_config.duplex = tp->link_config.orig_duplex;
8318                         tp->link_config.autoneg = tp->link_config.orig_autoneg;
8319                 }
8320
8321                 err = tg3_setup_phy(tp, 0);
8322                 if (err)
8323                         return err;
8324
8325                 if (!(tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) &&
8326                     !(tp->tg3_flags3 & TG3_FLG3_PHY_IS_FET)) {
8327                         u32 tmp;
8328
8329                         /* Clear CRC stats. */
8330                         if (!tg3_readphy(tp, MII_TG3_TEST1, &tmp)) {
8331                                 tg3_writephy(tp, MII_TG3_TEST1,
8332                                              tmp | MII_TG3_TEST1_CRC_EN);
8333                                 tg3_readphy(tp, 0x14, &tmp);
8334                         }
8335                 }
8336         }
8337
8338         __tg3_set_rx_mode(tp->dev);
8339
8340         /* Initialize receive rules. */
8341         tw32(MAC_RCV_RULE_0,  0xc2000000 & RCV_RULE_DISABLE_MASK);
8342         tw32(MAC_RCV_VALUE_0, 0xffffffff & RCV_RULE_DISABLE_MASK);
8343         tw32(MAC_RCV_RULE_1,  0x86000004 & RCV_RULE_DISABLE_MASK);
8344         tw32(MAC_RCV_VALUE_1, 0xffffffff & RCV_RULE_DISABLE_MASK);
8345
8346         if ((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
8347             !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
8348                 limit = 8;
8349         else
8350                 limit = 16;
8351         if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF)
8352                 limit -= 4;
8353         switch (limit) {
8354         case 16:
8355                 tw32(MAC_RCV_RULE_15,  0); tw32(MAC_RCV_VALUE_15,  0);
8356         case 15:
8357                 tw32(MAC_RCV_RULE_14,  0); tw32(MAC_RCV_VALUE_14,  0);
8358         case 14:
8359                 tw32(MAC_RCV_RULE_13,  0); tw32(MAC_RCV_VALUE_13,  0);
8360         case 13:
8361                 tw32(MAC_RCV_RULE_12,  0); tw32(MAC_RCV_VALUE_12,  0);
8362         case 12:
8363                 tw32(MAC_RCV_RULE_11,  0); tw32(MAC_RCV_VALUE_11,  0);
8364         case 11:
8365                 tw32(MAC_RCV_RULE_10,  0); tw32(MAC_RCV_VALUE_10,  0);
8366         case 10:
8367                 tw32(MAC_RCV_RULE_9,  0); tw32(MAC_RCV_VALUE_9,  0);
8368         case 9:
8369                 tw32(MAC_RCV_RULE_8,  0); tw32(MAC_RCV_VALUE_8,  0);
8370         case 8:
8371                 tw32(MAC_RCV_RULE_7,  0); tw32(MAC_RCV_VALUE_7,  0);
8372         case 7:
8373                 tw32(MAC_RCV_RULE_6,  0); tw32(MAC_RCV_VALUE_6,  0);
8374         case 6:
8375                 tw32(MAC_RCV_RULE_5,  0); tw32(MAC_RCV_VALUE_5,  0);
8376         case 5:
8377                 tw32(MAC_RCV_RULE_4,  0); tw32(MAC_RCV_VALUE_4,  0);
8378         case 4:
8379                 /* tw32(MAC_RCV_RULE_3,  0); tw32(MAC_RCV_VALUE_3,  0); */
8380         case 3:
8381                 /* tw32(MAC_RCV_RULE_2,  0); tw32(MAC_RCV_VALUE_2,  0); */
8382         case 2:
8383         case 1:
8384
8385         default:
8386                 break;
8387         }
8388
8389         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
8390                 /* Write our heartbeat update interval to APE. */
8391                 tg3_ape_write32(tp, TG3_APE_HOST_HEARTBEAT_INT_MS,
8392                                 APE_HOST_HEARTBEAT_INT_DISABLE);
8393
8394         tg3_write_sig_post_reset(tp, RESET_KIND_INIT);
8395
8396         return 0;
8397 }
8398
8399 /* Called at device open time to get the chip ready for
8400  * packet processing.  Invoked with tp->lock held.
8401  */
8402 static int tg3_init_hw(struct tg3 *tp, int reset_phy)
8403 {
8404         tg3_switch_clocks(tp);
8405
8406         tw32(TG3PCI_MEM_WIN_BASE_ADDR, 0);
8407
8408         return tg3_reset_hw(tp, reset_phy);
8409 }
8410
8411 #define TG3_STAT_ADD32(PSTAT, REG) \
8412 do {    u32 __val = tr32(REG); \
8413         (PSTAT)->low += __val; \
8414         if ((PSTAT)->low < __val) \
8415                 (PSTAT)->high += 1; \
8416 } while (0)
8417
8418 static void tg3_periodic_fetch_stats(struct tg3 *tp)
8419 {
8420         struct tg3_hw_stats *sp = tp->hw_stats;
8421
8422         if (!netif_carrier_ok(tp->dev))
8423                 return;
8424
8425         TG3_STAT_ADD32(&sp->tx_octets, MAC_TX_STATS_OCTETS);
8426         TG3_STAT_ADD32(&sp->tx_collisions, MAC_TX_STATS_COLLISIONS);
8427         TG3_STAT_ADD32(&sp->tx_xon_sent, MAC_TX_STATS_XON_SENT);
8428         TG3_STAT_ADD32(&sp->tx_xoff_sent, MAC_TX_STATS_XOFF_SENT);
8429         TG3_STAT_ADD32(&sp->tx_mac_errors, MAC_TX_STATS_MAC_ERRORS);
8430         TG3_STAT_ADD32(&sp->tx_single_collisions, MAC_TX_STATS_SINGLE_COLLISIONS);
8431         TG3_STAT_ADD32(&sp->tx_mult_collisions, MAC_TX_STATS_MULT_COLLISIONS);
8432         TG3_STAT_ADD32(&sp->tx_deferred, MAC_TX_STATS_DEFERRED);
8433         TG3_STAT_ADD32(&sp->tx_excessive_collisions, MAC_TX_STATS_EXCESSIVE_COL);
8434         TG3_STAT_ADD32(&sp->tx_late_collisions, MAC_TX_STATS_LATE_COL);
8435         TG3_STAT_ADD32(&sp->tx_ucast_packets, MAC_TX_STATS_UCAST);
8436         TG3_STAT_ADD32(&sp->tx_mcast_packets, MAC_TX_STATS_MCAST);
8437         TG3_STAT_ADD32(&sp->tx_bcast_packets, MAC_TX_STATS_BCAST);
8438
8439         TG3_STAT_ADD32(&sp->rx_octets, MAC_RX_STATS_OCTETS);
8440         TG3_STAT_ADD32(&sp->rx_fragments, MAC_RX_STATS_FRAGMENTS);
8441         TG3_STAT_ADD32(&sp->rx_ucast_packets, MAC_RX_STATS_UCAST);
8442         TG3_STAT_ADD32(&sp->rx_mcast_packets, MAC_RX_STATS_MCAST);
8443         TG3_STAT_ADD32(&sp->rx_bcast_packets, MAC_RX_STATS_BCAST);
8444         TG3_STAT_ADD32(&sp->rx_fcs_errors, MAC_RX_STATS_FCS_ERRORS);
8445         TG3_STAT_ADD32(&sp->rx_align_errors, MAC_RX_STATS_ALIGN_ERRORS);
8446         TG3_STAT_ADD32(&sp->rx_xon_pause_rcvd, MAC_RX_STATS_XON_PAUSE_RECVD);
8447         TG3_STAT_ADD32(&sp->rx_xoff_pause_rcvd, MAC_RX_STATS_XOFF_PAUSE_RECVD);
8448         TG3_STAT_ADD32(&sp->rx_mac_ctrl_rcvd, MAC_RX_STATS_MAC_CTRL_RECVD);
8449         TG3_STAT_ADD32(&sp->rx_xoff_entered, MAC_RX_STATS_XOFF_ENTERED);
8450         TG3_STAT_ADD32(&sp->rx_frame_too_long_errors, MAC_RX_STATS_FRAME_TOO_LONG);
8451         TG3_STAT_ADD32(&sp->rx_jabbers, MAC_RX_STATS_JABBERS);
8452         TG3_STAT_ADD32(&sp->rx_undersize_packets, MAC_RX_STATS_UNDERSIZE);
8453
8454         TG3_STAT_ADD32(&sp->rxbds_empty, RCVLPC_NO_RCV_BD_CNT);
8455         TG3_STAT_ADD32(&sp->rx_discards, RCVLPC_IN_DISCARDS_CNT);
8456         TG3_STAT_ADD32(&sp->rx_errors, RCVLPC_IN_ERRORS_CNT);
8457 }
8458
8459 static void tg3_timer(unsigned long __opaque)
8460 {
8461         struct tg3 *tp = (struct tg3 *) __opaque;
8462
8463         if (tp->irq_sync)
8464                 goto restart_timer;
8465
8466         spin_lock(&tp->lock);
8467
8468         if (!(tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)) {
8469                 /* All of this garbage is because when using non-tagged
8470                  * IRQ status the mailbox/status_block protocol the chip
8471                  * uses with the cpu is race prone.
8472                  */
8473                 if (tp->napi[0].hw_status->status & SD_STATUS_UPDATED) {
8474                         tw32(GRC_LOCAL_CTRL,
8475                              tp->grc_local_ctrl | GRC_LCLCTRL_SETINT);
8476                 } else {
8477                         tw32(HOSTCC_MODE, tp->coalesce_mode |
8478                              HOSTCC_MODE_ENABLE | HOSTCC_MODE_NOW);
8479                 }
8480
8481                 if (!(tr32(WDMAC_MODE) & WDMAC_MODE_ENABLE)) {
8482                         tp->tg3_flags2 |= TG3_FLG2_RESTART_TIMER;
8483                         spin_unlock(&tp->lock);
8484                         schedule_work(&tp->reset_task);
8485                         return;
8486                 }
8487         }
8488
8489         /* This part only runs once per second. */
8490         if (!--tp->timer_counter) {
8491                 if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
8492                         tg3_periodic_fetch_stats(tp);
8493
8494                 if (tp->tg3_flags & TG3_FLAG_USE_LINKCHG_REG) {
8495                         u32 mac_stat;
8496                         int phy_event;
8497
8498                         mac_stat = tr32(MAC_STATUS);
8499
8500                         phy_event = 0;
8501                         if (tp->tg3_flags & TG3_FLAG_USE_MI_INTERRUPT) {
8502                                 if (mac_stat & MAC_STATUS_MI_INTERRUPT)
8503                                         phy_event = 1;
8504                         } else if (mac_stat & MAC_STATUS_LNKSTATE_CHANGED)
8505                                 phy_event = 1;
8506
8507                         if (phy_event)
8508                                 tg3_setup_phy(tp, 0);
8509                 } else if (tp->tg3_flags & TG3_FLAG_POLL_SERDES) {
8510                         u32 mac_stat = tr32(MAC_STATUS);
8511                         int need_setup = 0;
8512
8513                         if (netif_carrier_ok(tp->dev) &&
8514                             (mac_stat & MAC_STATUS_LNKSTATE_CHANGED)) {
8515                                 need_setup = 1;
8516                         }
8517                         if (! netif_carrier_ok(tp->dev) &&
8518                             (mac_stat & (MAC_STATUS_PCS_SYNCED |
8519                                          MAC_STATUS_SIGNAL_DET))) {
8520                                 need_setup = 1;
8521                         }
8522                         if (need_setup) {
8523                                 if (!tp->serdes_counter) {
8524                                         tw32_f(MAC_MODE,
8525                                              (tp->mac_mode &
8526                                               ~MAC_MODE_PORT_MODE_MASK));
8527                                         udelay(40);
8528                                         tw32_f(MAC_MODE, tp->mac_mode);
8529                                         udelay(40);
8530                                 }
8531                                 tg3_setup_phy(tp, 0);
8532                         }
8533                 } else if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES)
8534                         tg3_serdes_parallel_detect(tp);
8535
8536                 tp->timer_counter = tp->timer_multiplier;
8537         }
8538
8539         /* Heartbeat is only sent once every 2 seconds.
8540          *
8541          * The heartbeat is to tell the ASF firmware that the host
8542          * driver is still alive.  In the event that the OS crashes,
8543          * ASF needs to reset the hardware to free up the FIFO space
8544          * that may be filled with rx packets destined for the host.
8545          * If the FIFO is full, ASF will no longer function properly.
8546          *
8547          * Unintended resets have been reported on real time kernels
8548          * where the timer doesn't run on time.  Netpoll will also have
8549          * same problem.
8550          *
8551          * The new FWCMD_NICDRV_ALIVE3 command tells the ASF firmware
8552          * to check the ring condition when the heartbeat is expiring
8553          * before doing the reset.  This will prevent most unintended
8554          * resets.
8555          */
8556         if (!--tp->asf_counter) {
8557                 if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) &&
8558                     !(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)) {
8559                         tg3_wait_for_event_ack(tp);
8560
8561                         tg3_write_mem(tp, NIC_SRAM_FW_CMD_MBOX,
8562                                       FWCMD_NICDRV_ALIVE3);
8563                         tg3_write_mem(tp, NIC_SRAM_FW_CMD_LEN_MBOX, 4);
8564                         tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX,
8565                                       TG3_FW_UPDATE_TIMEOUT_SEC);
8566
8567                         tg3_generate_fw_event(tp);
8568                 }
8569                 tp->asf_counter = tp->asf_multiplier;
8570         }
8571
8572         spin_unlock(&tp->lock);
8573
8574 restart_timer:
8575         tp->timer.expires = jiffies + tp->timer_offset;
8576         add_timer(&tp->timer);
8577 }
8578
8579 static int tg3_request_irq(struct tg3 *tp, int irq_num)
8580 {
8581         irq_handler_t fn;
8582         unsigned long flags;
8583         char *name;
8584         struct tg3_napi *tnapi = &tp->napi[irq_num];
8585
8586         if (tp->irq_cnt == 1)
8587                 name = tp->dev->name;
8588         else {
8589                 name = &tnapi->irq_lbl[0];
8590                 snprintf(name, IFNAMSIZ, "%s-%d", tp->dev->name, irq_num);
8591                 name[IFNAMSIZ-1] = 0;
8592         }
8593
8594         if (tp->tg3_flags2 & TG3_FLG2_USING_MSI_OR_MSIX) {
8595                 fn = tg3_msi;
8596                 if (tp->tg3_flags2 & TG3_FLG2_1SHOT_MSI)
8597                         fn = tg3_msi_1shot;
8598                 flags = IRQF_SAMPLE_RANDOM;
8599         } else {
8600                 fn = tg3_interrupt;
8601                 if (tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)
8602                         fn = tg3_interrupt_tagged;
8603                 flags = IRQF_SHARED | IRQF_SAMPLE_RANDOM;
8604         }
8605
8606         return request_irq(tnapi->irq_vec, fn, flags, name, tnapi);
8607 }
8608
8609 static int tg3_test_interrupt(struct tg3 *tp)
8610 {
8611         struct tg3_napi *tnapi = &tp->napi[0];
8612         struct net_device *dev = tp->dev;
8613         int err, i, intr_ok = 0;
8614         u32 val;
8615
8616         if (!netif_running(dev))
8617                 return -ENODEV;
8618
8619         tg3_disable_ints(tp);
8620
8621         free_irq(tnapi->irq_vec, tnapi);
8622
8623         /*
8624          * Turn off MSI one shot mode.  Otherwise this test has no
8625          * observable way to know whether the interrupt was delivered.
8626          */
8627         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
8628              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765) &&
8629             (tp->tg3_flags2 & TG3_FLG2_USING_MSI)) {
8630                 val = tr32(MSGINT_MODE) | MSGINT_MODE_ONE_SHOT_DISABLE;
8631                 tw32(MSGINT_MODE, val);
8632         }
8633
8634         err = request_irq(tnapi->irq_vec, tg3_test_isr,
8635                           IRQF_SHARED | IRQF_SAMPLE_RANDOM, dev->name, tnapi);
8636         if (err)
8637                 return err;
8638
8639         tnapi->hw_status->status &= ~SD_STATUS_UPDATED;
8640         tg3_enable_ints(tp);
8641
8642         tw32_f(HOSTCC_MODE, tp->coalesce_mode | HOSTCC_MODE_ENABLE |
8643                tnapi->coal_now);
8644
8645         for (i = 0; i < 5; i++) {
8646                 u32 int_mbox, misc_host_ctrl;
8647
8648                 int_mbox = tr32_mailbox(tnapi->int_mbox);
8649                 misc_host_ctrl = tr32(TG3PCI_MISC_HOST_CTRL);
8650
8651                 if ((int_mbox != 0) ||
8652                     (misc_host_ctrl & MISC_HOST_CTRL_MASK_PCI_INT)) {
8653                         intr_ok = 1;
8654                         break;
8655                 }
8656
8657                 msleep(10);
8658         }
8659
8660         tg3_disable_ints(tp);
8661
8662         free_irq(tnapi->irq_vec, tnapi);
8663
8664         err = tg3_request_irq(tp, 0);
8665
8666         if (err)
8667                 return err;
8668
8669         if (intr_ok) {
8670                 /* Reenable MSI one shot mode. */
8671                 if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
8672                      GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765) &&
8673                     (tp->tg3_flags2 & TG3_FLG2_USING_MSI)) {
8674                         val = tr32(MSGINT_MODE) & ~MSGINT_MODE_ONE_SHOT_DISABLE;
8675                         tw32(MSGINT_MODE, val);
8676                 }
8677                 return 0;
8678         }
8679
8680         return -EIO;
8681 }
8682
8683 /* Returns 0 if MSI test succeeds or MSI test fails and INTx mode is
8684  * successfully restored
8685  */
8686 static int tg3_test_msi(struct tg3 *tp)
8687 {
8688         int err;
8689         u16 pci_cmd;
8690
8691         if (!(tp->tg3_flags2 & TG3_FLG2_USING_MSI))
8692                 return 0;
8693
8694         /* Turn off SERR reporting in case MSI terminates with Master
8695          * Abort.
8696          */
8697         pci_read_config_word(tp->pdev, PCI_COMMAND, &pci_cmd);
8698         pci_write_config_word(tp->pdev, PCI_COMMAND,
8699                               pci_cmd & ~PCI_COMMAND_SERR);
8700
8701         err = tg3_test_interrupt(tp);
8702
8703         pci_write_config_word(tp->pdev, PCI_COMMAND, pci_cmd);
8704
8705         if (!err)
8706                 return 0;
8707
8708         /* other failures */
8709         if (err != -EIO)
8710                 return err;
8711
8712         /* MSI test failed, go back to INTx mode */
8713         netdev_warn(tp->dev, "No interrupt was generated using MSI. Switching "
8714                     "to INTx mode. Please report this failure to the PCI "
8715                     "maintainer and include system chipset information\n");
8716
8717         free_irq(tp->napi[0].irq_vec, &tp->napi[0]);
8718
8719         pci_disable_msi(tp->pdev);
8720
8721         tp->tg3_flags2 &= ~TG3_FLG2_USING_MSI;
8722         tp->napi[0].irq_vec = tp->pdev->irq;
8723
8724         err = tg3_request_irq(tp, 0);
8725         if (err)
8726                 return err;
8727
8728         /* Need to reset the chip because the MSI cycle may have terminated
8729          * with Master Abort.
8730          */
8731         tg3_full_lock(tp, 1);
8732
8733         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
8734         err = tg3_init_hw(tp, 1);
8735
8736         tg3_full_unlock(tp);
8737
8738         if (err)
8739                 free_irq(tp->napi[0].irq_vec, &tp->napi[0]);
8740
8741         return err;
8742 }
8743
8744 static int tg3_request_firmware(struct tg3 *tp)
8745 {
8746         const __be32 *fw_data;
8747
8748         if (request_firmware(&tp->fw, tp->fw_needed, &tp->pdev->dev)) {
8749                 netdev_err(tp->dev, "Failed to load firmware \"%s\"\n",
8750                            tp->fw_needed);
8751                 return -ENOENT;
8752         }
8753
8754         fw_data = (void *)tp->fw->data;
8755
8756         /* Firmware blob starts with version numbers, followed by
8757          * start address and _full_ length including BSS sections
8758          * (which must be longer than the actual data, of course
8759          */
8760
8761         tp->fw_len = be32_to_cpu(fw_data[2]);   /* includes bss */
8762         if (tp->fw_len < (tp->fw->size - 12)) {
8763                 netdev_err(tp->dev, "bogus length %d in \"%s\"\n",
8764                            tp->fw_len, tp->fw_needed);
8765                 release_firmware(tp->fw);
8766                 tp->fw = NULL;
8767                 return -EINVAL;
8768         }
8769
8770         /* We no longer need firmware; we have it. */
8771         tp->fw_needed = NULL;
8772         return 0;
8773 }
8774
8775 static bool tg3_enable_msix(struct tg3 *tp)
8776 {
8777         int i, rc, cpus = num_online_cpus();
8778         struct msix_entry msix_ent[tp->irq_max];
8779
8780         if (cpus == 1)
8781                 /* Just fallback to the simpler MSI mode. */
8782                 return false;
8783
8784         /*
8785          * We want as many rx rings enabled as there are cpus.
8786          * The first MSIX vector only deals with link interrupts, etc,
8787          * so we add one to the number of vectors we are requesting.
8788          */
8789         tp->irq_cnt = min_t(unsigned, cpus + 1, tp->irq_max);
8790
8791         for (i = 0; i < tp->irq_max; i++) {
8792                 msix_ent[i].entry  = i;
8793                 msix_ent[i].vector = 0;
8794         }
8795
8796         rc = pci_enable_msix(tp->pdev, msix_ent, tp->irq_cnt);
8797         if (rc != 0) {
8798                 if (rc < TG3_RSS_MIN_NUM_MSIX_VECS)
8799                         return false;
8800                 if (pci_enable_msix(tp->pdev, msix_ent, rc))
8801                         return false;
8802                 netdev_notice(tp->dev, "Requested %d MSI-X vectors, received %d\n",
8803                               tp->irq_cnt, rc);
8804                 tp->irq_cnt = rc;
8805         }
8806
8807         tp->tg3_flags3 |= TG3_FLG3_ENABLE_RSS;
8808
8809         for (i = 0; i < tp->irq_max; i++)
8810                 tp->napi[i].irq_vec = msix_ent[i].vector;
8811
8812         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717) {
8813                 tp->tg3_flags3 |= TG3_FLG3_ENABLE_TSS;
8814                 tp->dev->real_num_tx_queues = tp->irq_cnt - 1;
8815         } else
8816                 tp->dev->real_num_tx_queues = 1;
8817
8818         return true;
8819 }
8820
8821 static void tg3_ints_init(struct tg3 *tp)
8822 {
8823         if ((tp->tg3_flags & TG3_FLAG_SUPPORT_MSI_OR_MSIX) &&
8824             !(tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)) {
8825                 /* All MSI supporting chips should support tagged
8826                  * status.  Assert that this is the case.
8827                  */
8828                 netdev_warn(tp->dev,
8829                             "MSI without TAGGED_STATUS? Not using MSI\n");
8830                 goto defcfg;
8831         }
8832
8833         if ((tp->tg3_flags & TG3_FLAG_SUPPORT_MSIX) && tg3_enable_msix(tp))
8834                 tp->tg3_flags2 |= TG3_FLG2_USING_MSIX;
8835         else if ((tp->tg3_flags & TG3_FLAG_SUPPORT_MSI) &&
8836                  pci_enable_msi(tp->pdev) == 0)
8837                 tp->tg3_flags2 |= TG3_FLG2_USING_MSI;
8838
8839         if (tp->tg3_flags2 & TG3_FLG2_USING_MSI_OR_MSIX) {
8840                 u32 msi_mode = tr32(MSGINT_MODE);
8841                 if (tp->tg3_flags2 & TG3_FLG2_USING_MSIX)
8842                         msi_mode |= MSGINT_MODE_MULTIVEC_EN;
8843                 tw32(MSGINT_MODE, msi_mode | MSGINT_MODE_ENABLE);
8844         }
8845 defcfg:
8846         if (!(tp->tg3_flags2 & TG3_FLG2_USING_MSIX)) {
8847                 tp->irq_cnt = 1;
8848                 tp->napi[0].irq_vec = tp->pdev->irq;
8849                 tp->dev->real_num_tx_queues = 1;
8850         }
8851 }
8852
8853 static void tg3_ints_fini(struct tg3 *tp)
8854 {
8855         if (tp->tg3_flags2 & TG3_FLG2_USING_MSIX)
8856                 pci_disable_msix(tp->pdev);
8857         else if (tp->tg3_flags2 & TG3_FLG2_USING_MSI)
8858                 pci_disable_msi(tp->pdev);
8859         tp->tg3_flags2 &= ~TG3_FLG2_USING_MSI_OR_MSIX;
8860         tp->tg3_flags3 &= ~TG3_FLG3_ENABLE_RSS;
8861 }
8862
8863 static int tg3_open(struct net_device *dev)
8864 {
8865         struct tg3 *tp = netdev_priv(dev);
8866         int i, err;
8867
8868         if (tp->fw_needed) {
8869                 err = tg3_request_firmware(tp);
8870                 if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0) {
8871                         if (err)
8872                                 return err;
8873                 } else if (err) {
8874                         netdev_warn(tp->dev, "TSO capability disabled\n");
8875                         tp->tg3_flags2 &= ~TG3_FLG2_TSO_CAPABLE;
8876                 } else if (!(tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE)) {
8877                         netdev_notice(tp->dev, "TSO capability restored\n");
8878                         tp->tg3_flags2 |= TG3_FLG2_TSO_CAPABLE;
8879                 }
8880         }
8881
8882         netif_carrier_off(tp->dev);
8883
8884         err = tg3_set_power_state(tp, PCI_D0);
8885         if (err)
8886                 return err;
8887
8888         tg3_full_lock(tp, 0);
8889
8890         tg3_disable_ints(tp);
8891         tp->tg3_flags &= ~TG3_FLAG_INIT_COMPLETE;
8892
8893         tg3_full_unlock(tp);
8894
8895         /*
8896          * Setup interrupts first so we know how
8897          * many NAPI resources to allocate
8898          */
8899         tg3_ints_init(tp);
8900
8901         /* The placement of this call is tied
8902          * to the setup and use of Host TX descriptors.
8903          */
8904         err = tg3_alloc_consistent(tp);
8905         if (err)
8906                 goto err_out1;
8907
8908         tg3_napi_enable(tp);
8909
8910         for (i = 0; i < tp->irq_cnt; i++) {
8911                 struct tg3_napi *tnapi = &tp->napi[i];
8912                 err = tg3_request_irq(tp, i);
8913                 if (err) {
8914                         for (i--; i >= 0; i--)
8915                                 free_irq(tnapi->irq_vec, tnapi);
8916                         break;
8917                 }
8918         }
8919
8920         if (err)
8921                 goto err_out2;
8922
8923         tg3_full_lock(tp, 0);
8924
8925         err = tg3_init_hw(tp, 1);
8926         if (err) {
8927                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
8928                 tg3_free_rings(tp);
8929         } else {
8930                 if (tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)
8931                         tp->timer_offset = HZ;
8932                 else
8933                         tp->timer_offset = HZ / 10;
8934
8935                 BUG_ON(tp->timer_offset > HZ);
8936                 tp->timer_counter = tp->timer_multiplier =
8937                         (HZ / tp->timer_offset);
8938                 tp->asf_counter = tp->asf_multiplier =
8939                         ((HZ / tp->timer_offset) * 2);
8940
8941                 init_timer(&tp->timer);
8942                 tp->timer.expires = jiffies + tp->timer_offset;
8943                 tp->timer.data = (unsigned long) tp;
8944                 tp->timer.function = tg3_timer;
8945         }
8946
8947         tg3_full_unlock(tp);
8948
8949         if (err)
8950                 goto err_out3;
8951
8952         if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
8953                 err = tg3_test_msi(tp);
8954
8955                 if (err) {
8956                         tg3_full_lock(tp, 0);
8957                         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
8958                         tg3_free_rings(tp);
8959                         tg3_full_unlock(tp);
8960
8961                         goto err_out2;
8962                 }
8963
8964                 if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5717 &&
8965                     GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_57765 &&
8966                     (tp->tg3_flags2 & TG3_FLG2_USING_MSI) &&
8967                     (tp->tg3_flags2 & TG3_FLG2_1SHOT_MSI)) {
8968                         u32 val = tr32(PCIE_TRANSACTION_CFG);
8969
8970                         tw32(PCIE_TRANSACTION_CFG,
8971                              val | PCIE_TRANS_CFG_1SHOT_MSI);
8972                 }
8973         }
8974
8975         tg3_phy_start(tp);
8976
8977         tg3_full_lock(tp, 0);
8978
8979         add_timer(&tp->timer);
8980         tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
8981         tg3_enable_ints(tp);
8982
8983         tg3_full_unlock(tp);
8984
8985         netif_tx_start_all_queues(dev);
8986
8987         return 0;
8988
8989 err_out3:
8990         for (i = tp->irq_cnt - 1; i >= 0; i--) {
8991                 struct tg3_napi *tnapi = &tp->napi[i];
8992                 free_irq(tnapi->irq_vec, tnapi);
8993         }
8994
8995 err_out2:
8996         tg3_napi_disable(tp);
8997         tg3_free_consistent(tp);
8998
8999 err_out1:
9000         tg3_ints_fini(tp);
9001         return err;
9002 }
9003
9004 static struct net_device_stats *tg3_get_stats(struct net_device *);
9005 static struct tg3_ethtool_stats *tg3_get_estats(struct tg3 *);
9006
9007 static int tg3_close(struct net_device *dev)
9008 {
9009         int i;
9010         struct tg3 *tp = netdev_priv(dev);
9011
9012         tg3_napi_disable(tp);
9013         cancel_work_sync(&tp->reset_task);
9014
9015         netif_tx_stop_all_queues(dev);
9016
9017         del_timer_sync(&tp->timer);
9018
9019         tg3_phy_stop(tp);
9020
9021         tg3_full_lock(tp, 1);
9022
9023         tg3_disable_ints(tp);
9024
9025         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
9026         tg3_free_rings(tp);
9027         tp->tg3_flags &= ~TG3_FLAG_INIT_COMPLETE;
9028
9029         tg3_full_unlock(tp);
9030
9031         for (i = tp->irq_cnt - 1; i >= 0; i--) {
9032                 struct tg3_napi *tnapi = &tp->napi[i];
9033                 free_irq(tnapi->irq_vec, tnapi);
9034         }
9035
9036         tg3_ints_fini(tp);
9037
9038         memcpy(&tp->net_stats_prev, tg3_get_stats(tp->dev),
9039                sizeof(tp->net_stats_prev));
9040         memcpy(&tp->estats_prev, tg3_get_estats(tp),
9041                sizeof(tp->estats_prev));
9042
9043         tg3_free_consistent(tp);
9044
9045         tg3_set_power_state(tp, PCI_D3hot);
9046
9047         netif_carrier_off(tp->dev);
9048
9049         return 0;
9050 }
9051
9052 static inline unsigned long get_stat64(tg3_stat64_t *val)
9053 {
9054         unsigned long ret;
9055
9056 #if (BITS_PER_LONG == 32)
9057         ret = val->low;
9058 #else
9059         ret = ((u64)val->high << 32) | ((u64)val->low);
9060 #endif
9061         return ret;
9062 }
9063
9064 static inline u64 get_estat64(tg3_stat64_t *val)
9065 {
9066        return ((u64)val->high << 32) | ((u64)val->low);
9067 }
9068
9069 static unsigned long calc_crc_errors(struct tg3 *tp)
9070 {
9071         struct tg3_hw_stats *hw_stats = tp->hw_stats;
9072
9073         if (!(tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) &&
9074             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
9075              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)) {
9076                 u32 val;
9077
9078                 spin_lock_bh(&tp->lock);
9079                 if (!tg3_readphy(tp, MII_TG3_TEST1, &val)) {
9080                         tg3_writephy(tp, MII_TG3_TEST1,
9081                                      val | MII_TG3_TEST1_CRC_EN);
9082                         tg3_readphy(tp, 0x14, &val);
9083                 } else
9084                         val = 0;
9085                 spin_unlock_bh(&tp->lock);
9086
9087                 tp->phy_crc_errors += val;
9088
9089                 return tp->phy_crc_errors;
9090         }
9091
9092         return get_stat64(&hw_stats->rx_fcs_errors);
9093 }
9094
9095 #define ESTAT_ADD(member) \
9096         estats->member =        old_estats->member + \
9097                                 get_estat64(&hw_stats->member)
9098
9099 static struct tg3_ethtool_stats *tg3_get_estats(struct tg3 *tp)
9100 {
9101         struct tg3_ethtool_stats *estats = &tp->estats;
9102         struct tg3_ethtool_stats *old_estats = &tp->estats_prev;
9103         struct tg3_hw_stats *hw_stats = tp->hw_stats;
9104
9105         if (!hw_stats)
9106                 return old_estats;
9107
9108         ESTAT_ADD(rx_octets);
9109         ESTAT_ADD(rx_fragments);
9110         ESTAT_ADD(rx_ucast_packets);
9111         ESTAT_ADD(rx_mcast_packets);
9112         ESTAT_ADD(rx_bcast_packets);
9113         ESTAT_ADD(rx_fcs_errors);
9114         ESTAT_ADD(rx_align_errors);
9115         ESTAT_ADD(rx_xon_pause_rcvd);
9116         ESTAT_ADD(rx_xoff_pause_rcvd);
9117         ESTAT_ADD(rx_mac_ctrl_rcvd);
9118         ESTAT_ADD(rx_xoff_entered);
9119         ESTAT_ADD(rx_frame_too_long_errors);
9120         ESTAT_ADD(rx_jabbers);
9121         ESTAT_ADD(rx_undersize_packets);
9122         ESTAT_ADD(rx_in_length_errors);
9123         ESTAT_ADD(rx_out_length_errors);
9124         ESTAT_ADD(rx_64_or_less_octet_packets);
9125         ESTAT_ADD(rx_65_to_127_octet_packets);
9126         ESTAT_ADD(rx_128_to_255_octet_packets);
9127         ESTAT_ADD(rx_256_to_511_octet_packets);
9128         ESTAT_ADD(rx_512_to_1023_octet_packets);
9129         ESTAT_ADD(rx_1024_to_1522_octet_packets);
9130         ESTAT_ADD(rx_1523_to_2047_octet_packets);
9131         ESTAT_ADD(rx_2048_to_4095_octet_packets);
9132         ESTAT_ADD(rx_4096_to_8191_octet_packets);
9133         ESTAT_ADD(rx_8192_to_9022_octet_packets);
9134
9135         ESTAT_ADD(tx_octets);
9136         ESTAT_ADD(tx_collisions);
9137         ESTAT_ADD(tx_xon_sent);
9138         ESTAT_ADD(tx_xoff_sent);
9139         ESTAT_ADD(tx_flow_control);
9140         ESTAT_ADD(tx_mac_errors);
9141         ESTAT_ADD(tx_single_collisions);
9142         ESTAT_ADD(tx_mult_collisions);
9143         ESTAT_ADD(tx_deferred);
9144         ESTAT_ADD(tx_excessive_collisions);
9145         ESTAT_ADD(tx_late_collisions);
9146         ESTAT_ADD(tx_collide_2times);
9147         ESTAT_ADD(tx_collide_3times);
9148         ESTAT_ADD(tx_collide_4times);
9149         ESTAT_ADD(tx_collide_5times);
9150         ESTAT_ADD(tx_collide_6times);
9151         ESTAT_ADD(tx_collide_7times);
9152         ESTAT_ADD(tx_collide_8times);
9153         ESTAT_ADD(tx_collide_9times);
9154         ESTAT_ADD(tx_collide_10times);
9155         ESTAT_ADD(tx_collide_11times);
9156         ESTAT_ADD(tx_collide_12times);
9157         ESTAT_ADD(tx_collide_13times);
9158         ESTAT_ADD(tx_collide_14times);
9159         ESTAT_ADD(tx_collide_15times);
9160         ESTAT_ADD(tx_ucast_packets);
9161         ESTAT_ADD(tx_mcast_packets);
9162         ESTAT_ADD(tx_bcast_packets);
9163         ESTAT_ADD(tx_carrier_sense_errors);
9164         ESTAT_ADD(tx_discards);
9165         ESTAT_ADD(tx_errors);
9166
9167         ESTAT_ADD(dma_writeq_full);
9168         ESTAT_ADD(dma_write_prioq_full);
9169         ESTAT_ADD(rxbds_empty);
9170         ESTAT_ADD(rx_discards);
9171         ESTAT_ADD(rx_errors);
9172         ESTAT_ADD(rx_threshold_hit);
9173
9174         ESTAT_ADD(dma_readq_full);
9175         ESTAT_ADD(dma_read_prioq_full);
9176         ESTAT_ADD(tx_comp_queue_full);
9177
9178         ESTAT_ADD(ring_set_send_prod_index);
9179         ESTAT_ADD(ring_status_update);
9180         ESTAT_ADD(nic_irqs);
9181         ESTAT_ADD(nic_avoided_irqs);
9182         ESTAT_ADD(nic_tx_threshold_hit);
9183
9184         return estats;
9185 }
9186
9187 static struct net_device_stats *tg3_get_stats(struct net_device *dev)
9188 {
9189         struct tg3 *tp = netdev_priv(dev);
9190         struct net_device_stats *stats = &tp->net_stats;
9191         struct net_device_stats *old_stats = &tp->net_stats_prev;
9192         struct tg3_hw_stats *hw_stats = tp->hw_stats;
9193
9194         if (!hw_stats)
9195                 return old_stats;
9196
9197         stats->rx_packets = old_stats->rx_packets +
9198                 get_stat64(&hw_stats->rx_ucast_packets) +
9199                 get_stat64(&hw_stats->rx_mcast_packets) +
9200                 get_stat64(&hw_stats->rx_bcast_packets);
9201
9202         stats->tx_packets = old_stats->tx_packets +
9203                 get_stat64(&hw_stats->tx_ucast_packets) +
9204                 get_stat64(&hw_stats->tx_mcast_packets) +
9205                 get_stat64(&hw_stats->tx_bcast_packets);
9206
9207         stats->rx_bytes = old_stats->rx_bytes +
9208                 get_stat64(&hw_stats->rx_octets);
9209         stats->tx_bytes = old_stats->tx_bytes +
9210                 get_stat64(&hw_stats->tx_octets);
9211
9212         stats->rx_errors = old_stats->rx_errors +
9213                 get_stat64(&hw_stats->rx_errors);
9214         stats->tx_errors = old_stats->tx_errors +
9215                 get_stat64(&hw_stats->tx_errors) +
9216                 get_stat64(&hw_stats->tx_mac_errors) +
9217                 get_stat64(&hw_stats->tx_carrier_sense_errors) +
9218                 get_stat64(&hw_stats->tx_discards);
9219
9220         stats->multicast = old_stats->multicast +
9221                 get_stat64(&hw_stats->rx_mcast_packets);
9222         stats->collisions = old_stats->collisions +
9223                 get_stat64(&hw_stats->tx_collisions);
9224
9225         stats->rx_length_errors = old_stats->rx_length_errors +
9226                 get_stat64(&hw_stats->rx_frame_too_long_errors) +
9227                 get_stat64(&hw_stats->rx_undersize_packets);
9228
9229         stats->rx_over_errors = old_stats->rx_over_errors +
9230                 get_stat64(&hw_stats->rxbds_empty);
9231         stats->rx_frame_errors = old_stats->rx_frame_errors +
9232                 get_stat64(&hw_stats->rx_align_errors);
9233         stats->tx_aborted_errors = old_stats->tx_aborted_errors +
9234                 get_stat64(&hw_stats->tx_discards);
9235         stats->tx_carrier_errors = old_stats->tx_carrier_errors +
9236                 get_stat64(&hw_stats->tx_carrier_sense_errors);
9237
9238         stats->rx_crc_errors = old_stats->rx_crc_errors +
9239                 calc_crc_errors(tp);
9240
9241         stats->rx_missed_errors = old_stats->rx_missed_errors +
9242                 get_stat64(&hw_stats->rx_discards);
9243
9244         return stats;
9245 }
9246
9247 static inline u32 calc_crc(unsigned char *buf, int len)
9248 {
9249         u32 reg;
9250         u32 tmp;
9251         int j, k;
9252
9253         reg = 0xffffffff;
9254
9255         for (j = 0; j < len; j++) {
9256                 reg ^= buf[j];
9257
9258                 for (k = 0; k < 8; k++) {
9259                         tmp = reg & 0x01;
9260
9261                         reg >>= 1;
9262
9263                         if (tmp)
9264                                 reg ^= 0xedb88320;
9265                 }
9266         }
9267
9268         return ~reg;
9269 }
9270
9271 static void tg3_set_multi(struct tg3 *tp, unsigned int accept_all)
9272 {
9273         /* accept or reject all multicast frames */
9274         tw32(MAC_HASH_REG_0, accept_all ? 0xffffffff : 0);
9275         tw32(MAC_HASH_REG_1, accept_all ? 0xffffffff : 0);
9276         tw32(MAC_HASH_REG_2, accept_all ? 0xffffffff : 0);
9277         tw32(MAC_HASH_REG_3, accept_all ? 0xffffffff : 0);
9278 }
9279
9280 static void __tg3_set_rx_mode(struct net_device *dev)
9281 {
9282         struct tg3 *tp = netdev_priv(dev);
9283         u32 rx_mode;
9284
9285         rx_mode = tp->rx_mode & ~(RX_MODE_PROMISC |
9286                                   RX_MODE_KEEP_VLAN_TAG);
9287
9288         /* When ASF is in use, we always keep the RX_MODE_KEEP_VLAN_TAG
9289          * flag clear.
9290          */
9291 #if TG3_VLAN_TAG_USED
9292         if (!tp->vlgrp &&
9293             !(tp->tg3_flags & TG3_FLAG_ENABLE_ASF))
9294                 rx_mode |= RX_MODE_KEEP_VLAN_TAG;
9295 #else
9296         /* By definition, VLAN is disabled always in this
9297          * case.
9298          */
9299         if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF))
9300                 rx_mode |= RX_MODE_KEEP_VLAN_TAG;
9301 #endif
9302
9303         if (dev->flags & IFF_PROMISC) {
9304                 /* Promiscuous mode. */
9305                 rx_mode |= RX_MODE_PROMISC;
9306         } else if (dev->flags & IFF_ALLMULTI) {
9307                 /* Accept all multicast. */
9308                 tg3_set_multi(tp, 1);
9309         } else if (netdev_mc_empty(dev)) {
9310                 /* Reject all multicast. */
9311                 tg3_set_multi(tp, 0);
9312         } else {
9313                 /* Accept one or more multicast(s). */
9314                 struct netdev_hw_addr *ha;
9315                 u32 mc_filter[4] = { 0, };
9316                 u32 regidx;
9317                 u32 bit;
9318                 u32 crc;
9319
9320                 netdev_for_each_mc_addr(ha, dev) {
9321                         crc = calc_crc(ha->addr, ETH_ALEN);
9322                         bit = ~crc & 0x7f;
9323                         regidx = (bit & 0x60) >> 5;
9324                         bit &= 0x1f;
9325                         mc_filter[regidx] |= (1 << bit);
9326                 }
9327
9328                 tw32(MAC_HASH_REG_0, mc_filter[0]);
9329                 tw32(MAC_HASH_REG_1, mc_filter[1]);
9330                 tw32(MAC_HASH_REG_2, mc_filter[2]);
9331                 tw32(MAC_HASH_REG_3, mc_filter[3]);
9332         }
9333
9334         if (rx_mode != tp->rx_mode) {
9335                 tp->rx_mode = rx_mode;
9336                 tw32_f(MAC_RX_MODE, rx_mode);
9337                 udelay(10);
9338         }
9339 }
9340
9341 static void tg3_set_rx_mode(struct net_device *dev)
9342 {
9343         struct tg3 *tp = netdev_priv(dev);
9344
9345         if (!netif_running(dev))
9346                 return;
9347
9348         tg3_full_lock(tp, 0);
9349         __tg3_set_rx_mode(dev);
9350         tg3_full_unlock(tp);
9351 }
9352
9353 #define TG3_REGDUMP_LEN         (32 * 1024)
9354
9355 static int tg3_get_regs_len(struct net_device *dev)
9356 {
9357         return TG3_REGDUMP_LEN;
9358 }
9359
9360 static void tg3_get_regs(struct net_device *dev,
9361                 struct ethtool_regs *regs, void *_p)
9362 {
9363         u32 *p = _p;
9364         struct tg3 *tp = netdev_priv(dev);
9365         u8 *orig_p = _p;
9366         int i;
9367
9368         regs->version = 0;
9369
9370         memset(p, 0, TG3_REGDUMP_LEN);
9371
9372         if (tp->link_config.phy_is_low_power)
9373                 return;
9374
9375         tg3_full_lock(tp, 0);
9376
9377 #define __GET_REG32(reg)        (*(p)++ = tr32(reg))
9378 #define GET_REG32_LOOP(base,len)                \
9379 do {    p = (u32 *)(orig_p + (base));           \
9380         for (i = 0; i < len; i += 4)            \
9381                 __GET_REG32((base) + i);        \
9382 } while (0)
9383 #define GET_REG32_1(reg)                        \
9384 do {    p = (u32 *)(orig_p + (reg));            \
9385         __GET_REG32((reg));                     \
9386 } while (0)
9387
9388         GET_REG32_LOOP(TG3PCI_VENDOR, 0xb0);
9389         GET_REG32_LOOP(MAILBOX_INTERRUPT_0, 0x200);
9390         GET_REG32_LOOP(MAC_MODE, 0x4f0);
9391         GET_REG32_LOOP(SNDDATAI_MODE, 0xe0);
9392         GET_REG32_1(SNDDATAC_MODE);
9393         GET_REG32_LOOP(SNDBDS_MODE, 0x80);
9394         GET_REG32_LOOP(SNDBDI_MODE, 0x48);
9395         GET_REG32_1(SNDBDC_MODE);
9396         GET_REG32_LOOP(RCVLPC_MODE, 0x20);
9397         GET_REG32_LOOP(RCVLPC_SELLST_BASE, 0x15c);
9398         GET_REG32_LOOP(RCVDBDI_MODE, 0x0c);
9399         GET_REG32_LOOP(RCVDBDI_JUMBO_BD, 0x3c);
9400         GET_REG32_LOOP(RCVDBDI_BD_PROD_IDX_0, 0x44);
9401         GET_REG32_1(RCVDCC_MODE);
9402         GET_REG32_LOOP(RCVBDI_MODE, 0x20);
9403         GET_REG32_LOOP(RCVCC_MODE, 0x14);
9404         GET_REG32_LOOP(RCVLSC_MODE, 0x08);
9405         GET_REG32_1(MBFREE_MODE);
9406         GET_REG32_LOOP(HOSTCC_MODE, 0x100);
9407         GET_REG32_LOOP(MEMARB_MODE, 0x10);
9408         GET_REG32_LOOP(BUFMGR_MODE, 0x58);
9409         GET_REG32_LOOP(RDMAC_MODE, 0x08);
9410         GET_REG32_LOOP(WDMAC_MODE, 0x08);
9411         GET_REG32_1(RX_CPU_MODE);
9412         GET_REG32_1(RX_CPU_STATE);
9413         GET_REG32_1(RX_CPU_PGMCTR);
9414         GET_REG32_1(RX_CPU_HWBKPT);
9415         GET_REG32_1(TX_CPU_MODE);
9416         GET_REG32_1(TX_CPU_STATE);
9417         GET_REG32_1(TX_CPU_PGMCTR);
9418         GET_REG32_LOOP(GRCMBOX_INTERRUPT_0, 0x110);
9419         GET_REG32_LOOP(FTQ_RESET, 0x120);
9420         GET_REG32_LOOP(MSGINT_MODE, 0x0c);
9421         GET_REG32_1(DMAC_MODE);
9422         GET_REG32_LOOP(GRC_MODE, 0x4c);
9423         if (tp->tg3_flags & TG3_FLAG_NVRAM)
9424                 GET_REG32_LOOP(NVRAM_CMD, 0x24);
9425
9426 #undef __GET_REG32
9427 #undef GET_REG32_LOOP
9428 #undef GET_REG32_1
9429
9430         tg3_full_unlock(tp);
9431 }
9432
9433 static int tg3_get_eeprom_len(struct net_device *dev)
9434 {
9435         struct tg3 *tp = netdev_priv(dev);
9436
9437         return tp->nvram_size;
9438 }
9439
9440 static int tg3_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, u8 *data)
9441 {
9442         struct tg3 *tp = netdev_priv(dev);
9443         int ret;
9444         u8  *pd;
9445         u32 i, offset, len, b_offset, b_count;
9446         __be32 val;
9447
9448         if (tp->tg3_flags3 & TG3_FLG3_NO_NVRAM)
9449                 return -EINVAL;
9450
9451         if (tp->link_config.phy_is_low_power)
9452                 return -EAGAIN;
9453
9454         offset = eeprom->offset;
9455         len = eeprom->len;
9456         eeprom->len = 0;
9457
9458         eeprom->magic = TG3_EEPROM_MAGIC;
9459
9460         if (offset & 3) {
9461                 /* adjustments to start on required 4 byte boundary */
9462                 b_offset = offset & 3;
9463                 b_count = 4 - b_offset;
9464                 if (b_count > len) {
9465                         /* i.e. offset=1 len=2 */
9466                         b_count = len;
9467                 }
9468                 ret = tg3_nvram_read_be32(tp, offset-b_offset, &val);
9469                 if (ret)
9470                         return ret;
9471                 memcpy(data, ((char*)&val) + b_offset, b_count);
9472                 len -= b_count;
9473                 offset += b_count;
9474                 eeprom->len += b_count;
9475         }
9476
9477         /* read bytes upto the last 4 byte boundary */
9478         pd = &data[eeprom->len];
9479         for (i = 0; i < (len - (len & 3)); i += 4) {
9480                 ret = tg3_nvram_read_be32(tp, offset + i, &val);
9481                 if (ret) {
9482                         eeprom->len += i;
9483                         return ret;
9484                 }
9485                 memcpy(pd + i, &val, 4);
9486         }
9487         eeprom->len += i;
9488
9489         if (len & 3) {
9490                 /* read last bytes not ending on 4 byte boundary */
9491                 pd = &data[eeprom->len];
9492                 b_count = len & 3;
9493                 b_offset = offset + len - b_count;
9494                 ret = tg3_nvram_read_be32(tp, b_offset, &val);
9495                 if (ret)
9496                         return ret;
9497                 memcpy(pd, &val, b_count);
9498                 eeprom->len += b_count;
9499         }
9500         return 0;
9501 }
9502
9503 static int tg3_nvram_write_block(struct tg3 *tp, u32 offset, u32 len, u8 *buf);
9504
9505 static int tg3_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, u8 *data)
9506 {
9507         struct tg3 *tp = netdev_priv(dev);
9508         int ret;
9509         u32 offset, len, b_offset, odd_len;
9510         u8 *buf;
9511         __be32 start, end;
9512
9513         if (tp->link_config.phy_is_low_power)
9514                 return -EAGAIN;
9515
9516         if ((tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) ||
9517             eeprom->magic != TG3_EEPROM_MAGIC)
9518                 return -EINVAL;
9519
9520         offset = eeprom->offset;
9521         len = eeprom->len;
9522
9523         if ((b_offset = (offset & 3))) {
9524                 /* adjustments to start on required 4 byte boundary */
9525                 ret = tg3_nvram_read_be32(tp, offset-b_offset, &start);
9526                 if (ret)
9527                         return ret;
9528                 len += b_offset;
9529                 offset &= ~3;
9530                 if (len < 4)
9531                         len = 4;
9532         }
9533
9534         odd_len = 0;
9535         if (len & 3) {
9536                 /* adjustments to end on required 4 byte boundary */
9537                 odd_len = 1;
9538                 len = (len + 3) & ~3;
9539                 ret = tg3_nvram_read_be32(tp, offset+len-4, &end);
9540                 if (ret)
9541                         return ret;
9542         }
9543
9544         buf = data;
9545         if (b_offset || odd_len) {
9546                 buf = kmalloc(len, GFP_KERNEL);
9547                 if (!buf)
9548                         return -ENOMEM;
9549                 if (b_offset)
9550                         memcpy(buf, &start, 4);
9551                 if (odd_len)
9552                         memcpy(buf+len-4, &end, 4);
9553                 memcpy(buf + b_offset, data, eeprom->len);
9554         }
9555
9556         ret = tg3_nvram_write_block(tp, offset, len, buf);
9557
9558         if (buf != data)
9559                 kfree(buf);
9560
9561         return ret;
9562 }
9563
9564 static int tg3_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
9565 {
9566         struct tg3 *tp = netdev_priv(dev);
9567
9568         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
9569                 struct phy_device *phydev;
9570                 if (!(tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED))
9571                         return -EAGAIN;
9572                 phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
9573                 return phy_ethtool_gset(phydev, cmd);
9574         }
9575
9576         cmd->supported = (SUPPORTED_Autoneg);
9577
9578         if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY))
9579                 cmd->supported |= (SUPPORTED_1000baseT_Half |
9580                                    SUPPORTED_1000baseT_Full);
9581
9582         if (!(tp->tg3_flags2 & TG3_FLG2_ANY_SERDES)) {
9583                 cmd->supported |= (SUPPORTED_100baseT_Half |
9584                                   SUPPORTED_100baseT_Full |
9585                                   SUPPORTED_10baseT_Half |
9586                                   SUPPORTED_10baseT_Full |
9587                                   SUPPORTED_TP);
9588                 cmd->port = PORT_TP;
9589         } else {
9590                 cmd->supported |= SUPPORTED_FIBRE;
9591                 cmd->port = PORT_FIBRE;
9592         }
9593
9594         cmd->advertising = tp->link_config.advertising;
9595         if (netif_running(dev)) {
9596                 cmd->speed = tp->link_config.active_speed;
9597                 cmd->duplex = tp->link_config.active_duplex;
9598         }
9599         cmd->phy_address = tp->phy_addr;
9600         cmd->transceiver = XCVR_INTERNAL;
9601         cmd->autoneg = tp->link_config.autoneg;
9602         cmd->maxtxpkt = 0;
9603         cmd->maxrxpkt = 0;
9604         return 0;
9605 }
9606
9607 static int tg3_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
9608 {
9609         struct tg3 *tp = netdev_priv(dev);
9610
9611         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
9612                 struct phy_device *phydev;
9613                 if (!(tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED))
9614                         return -EAGAIN;
9615                 phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
9616                 return phy_ethtool_sset(phydev, cmd);
9617         }
9618
9619         if (cmd->autoneg != AUTONEG_ENABLE &&
9620             cmd->autoneg != AUTONEG_DISABLE)
9621                 return -EINVAL;
9622
9623         if (cmd->autoneg == AUTONEG_DISABLE &&
9624             cmd->duplex != DUPLEX_FULL &&
9625             cmd->duplex != DUPLEX_HALF)
9626                 return -EINVAL;
9627
9628         if (cmd->autoneg == AUTONEG_ENABLE) {
9629                 u32 mask = ADVERTISED_Autoneg |
9630                            ADVERTISED_Pause |
9631                            ADVERTISED_Asym_Pause;
9632
9633                 if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY))
9634                         mask |= ADVERTISED_1000baseT_Half |
9635                                 ADVERTISED_1000baseT_Full;
9636
9637                 if (!(tp->tg3_flags2 & TG3_FLG2_ANY_SERDES))
9638                         mask |= ADVERTISED_100baseT_Half |
9639                                 ADVERTISED_100baseT_Full |
9640                                 ADVERTISED_10baseT_Half |
9641                                 ADVERTISED_10baseT_Full |
9642                                 ADVERTISED_TP;
9643                 else
9644                         mask |= ADVERTISED_FIBRE;
9645
9646                 if (cmd->advertising & ~mask)
9647                         return -EINVAL;
9648
9649                 mask &= (ADVERTISED_1000baseT_Half |
9650                          ADVERTISED_1000baseT_Full |
9651                          ADVERTISED_100baseT_Half |
9652                          ADVERTISED_100baseT_Full |
9653                          ADVERTISED_10baseT_Half |
9654                          ADVERTISED_10baseT_Full);
9655
9656                 cmd->advertising &= mask;
9657         } else {
9658                 if (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES) {
9659                         if (cmd->speed != SPEED_1000)
9660                                 return -EINVAL;
9661
9662                         if (cmd->duplex != DUPLEX_FULL)
9663                                 return -EINVAL;
9664                 } else {
9665                         if (cmd->speed != SPEED_100 &&
9666                             cmd->speed != SPEED_10)
9667                                 return -EINVAL;
9668                 }
9669         }
9670
9671         tg3_full_lock(tp, 0);
9672
9673         tp->link_config.autoneg = cmd->autoneg;
9674         if (cmd->autoneg == AUTONEG_ENABLE) {
9675                 tp->link_config.advertising = (cmd->advertising |
9676                                               ADVERTISED_Autoneg);
9677                 tp->link_config.speed = SPEED_INVALID;
9678                 tp->link_config.duplex = DUPLEX_INVALID;
9679         } else {
9680                 tp->link_config.advertising = 0;
9681                 tp->link_config.speed = cmd->speed;
9682                 tp->link_config.duplex = cmd->duplex;
9683         }
9684
9685         tp->link_config.orig_speed = tp->link_config.speed;
9686         tp->link_config.orig_duplex = tp->link_config.duplex;
9687         tp->link_config.orig_autoneg = tp->link_config.autoneg;
9688
9689         if (netif_running(dev))
9690                 tg3_setup_phy(tp, 1);
9691
9692         tg3_full_unlock(tp);
9693
9694         return 0;
9695 }
9696
9697 static void tg3_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
9698 {
9699         struct tg3 *tp = netdev_priv(dev);
9700
9701         strcpy(info->driver, DRV_MODULE_NAME);
9702         strcpy(info->version, DRV_MODULE_VERSION);
9703         strcpy(info->fw_version, tp->fw_ver);
9704         strcpy(info->bus_info, pci_name(tp->pdev));
9705 }
9706
9707 static void tg3_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
9708 {
9709         struct tg3 *tp = netdev_priv(dev);
9710
9711         if ((tp->tg3_flags & TG3_FLAG_WOL_CAP) &&
9712             device_can_wakeup(&tp->pdev->dev))
9713                 wol->supported = WAKE_MAGIC;
9714         else
9715                 wol->supported = 0;
9716         wol->wolopts = 0;
9717         if ((tp->tg3_flags & TG3_FLAG_WOL_ENABLE) &&
9718             device_can_wakeup(&tp->pdev->dev))
9719                 wol->wolopts = WAKE_MAGIC;
9720         memset(&wol->sopass, 0, sizeof(wol->sopass));
9721 }
9722
9723 static int tg3_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
9724 {
9725         struct tg3 *tp = netdev_priv(dev);
9726         struct device *dp = &tp->pdev->dev;
9727
9728         if (wol->wolopts & ~WAKE_MAGIC)
9729                 return -EINVAL;
9730         if ((wol->wolopts & WAKE_MAGIC) &&
9731             !((tp->tg3_flags & TG3_FLAG_WOL_CAP) && device_can_wakeup(dp)))
9732                 return -EINVAL;
9733
9734         spin_lock_bh(&tp->lock);
9735         if (wol->wolopts & WAKE_MAGIC) {
9736                 tp->tg3_flags |= TG3_FLAG_WOL_ENABLE;
9737                 device_set_wakeup_enable(dp, true);
9738         } else {
9739                 tp->tg3_flags &= ~TG3_FLAG_WOL_ENABLE;
9740                 device_set_wakeup_enable(dp, false);
9741         }
9742         spin_unlock_bh(&tp->lock);
9743
9744         return 0;
9745 }
9746
9747 static u32 tg3_get_msglevel(struct net_device *dev)
9748 {
9749         struct tg3 *tp = netdev_priv(dev);
9750         return tp->msg_enable;
9751 }
9752
9753 static void tg3_set_msglevel(struct net_device *dev, u32 value)
9754 {
9755         struct tg3 *tp = netdev_priv(dev);
9756         tp->msg_enable = value;
9757 }
9758
9759 static int tg3_set_tso(struct net_device *dev, u32 value)
9760 {
9761         struct tg3 *tp = netdev_priv(dev);
9762
9763         if (!(tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE)) {
9764                 if (value)
9765                         return -EINVAL;
9766                 return 0;
9767         }
9768         if ((dev->features & NETIF_F_IPV6_CSUM) &&
9769             ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_2) ||
9770              (tp->tg3_flags2 & TG3_FLG2_HW_TSO_3))) {
9771                 if (value) {
9772                         dev->features |= NETIF_F_TSO6;
9773                         if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_3) ||
9774                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
9775                             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
9776                              GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) ||
9777                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
9778                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
9779                                 dev->features |= NETIF_F_TSO_ECN;
9780                 } else
9781                         dev->features &= ~(NETIF_F_TSO6 | NETIF_F_TSO_ECN);
9782         }
9783         return ethtool_op_set_tso(dev, value);
9784 }
9785
9786 static int tg3_nway_reset(struct net_device *dev)
9787 {
9788         struct tg3 *tp = netdev_priv(dev);
9789         int r;
9790
9791         if (!netif_running(dev))
9792                 return -EAGAIN;
9793
9794         if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)
9795                 return -EINVAL;
9796
9797         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
9798                 if (!(tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED))
9799                         return -EAGAIN;
9800                 r = phy_start_aneg(tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR]);
9801         } else {
9802                 u32 bmcr;
9803
9804                 spin_lock_bh(&tp->lock);
9805                 r = -EINVAL;
9806                 tg3_readphy(tp, MII_BMCR, &bmcr);
9807                 if (!tg3_readphy(tp, MII_BMCR, &bmcr) &&
9808                     ((bmcr & BMCR_ANENABLE) ||
9809                      (tp->tg3_flags2 & TG3_FLG2_PARALLEL_DETECT))) {
9810                         tg3_writephy(tp, MII_BMCR, bmcr | BMCR_ANRESTART |
9811                                                    BMCR_ANENABLE);
9812                         r = 0;
9813                 }
9814                 spin_unlock_bh(&tp->lock);
9815         }
9816
9817         return r;
9818 }
9819
9820 static void tg3_get_ringparam(struct net_device *dev, struct ethtool_ringparam *ering)
9821 {
9822         struct tg3 *tp = netdev_priv(dev);
9823
9824         ering->rx_max_pending = TG3_RX_RING_SIZE - 1;
9825         ering->rx_mini_max_pending = 0;
9826         if (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE)
9827                 ering->rx_jumbo_max_pending = TG3_RX_JUMBO_RING_SIZE - 1;
9828         else
9829                 ering->rx_jumbo_max_pending = 0;
9830
9831         ering->tx_max_pending = TG3_TX_RING_SIZE - 1;
9832
9833         ering->rx_pending = tp->rx_pending;
9834         ering->rx_mini_pending = 0;
9835         if (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE)
9836                 ering->rx_jumbo_pending = tp->rx_jumbo_pending;
9837         else
9838                 ering->rx_jumbo_pending = 0;
9839
9840         ering->tx_pending = tp->napi[0].tx_pending;
9841 }
9842
9843 static int tg3_set_ringparam(struct net_device *dev, struct ethtool_ringparam *ering)
9844 {
9845         struct tg3 *tp = netdev_priv(dev);
9846         int i, irq_sync = 0, err = 0;
9847
9848         if ((ering->rx_pending > TG3_RX_RING_SIZE - 1) ||
9849             (ering->rx_jumbo_pending > TG3_RX_JUMBO_RING_SIZE - 1) ||
9850             (ering->tx_pending > TG3_TX_RING_SIZE - 1) ||
9851             (ering->tx_pending <= MAX_SKB_FRAGS) ||
9852             ((tp->tg3_flags2 & TG3_FLG2_TSO_BUG) &&
9853              (ering->tx_pending <= (MAX_SKB_FRAGS * 3))))
9854                 return -EINVAL;
9855
9856         if (netif_running(dev)) {
9857                 tg3_phy_stop(tp);
9858                 tg3_netif_stop(tp);
9859                 irq_sync = 1;
9860         }
9861
9862         tg3_full_lock(tp, irq_sync);
9863
9864         tp->rx_pending = ering->rx_pending;
9865
9866         if ((tp->tg3_flags2 & TG3_FLG2_MAX_RXPEND_64) &&
9867             tp->rx_pending > 63)
9868                 tp->rx_pending = 63;
9869         tp->rx_jumbo_pending = ering->rx_jumbo_pending;
9870
9871         for (i = 0; i < TG3_IRQ_MAX_VECS; i++)
9872                 tp->napi[i].tx_pending = ering->tx_pending;
9873
9874         if (netif_running(dev)) {
9875                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
9876                 err = tg3_restart_hw(tp, 1);
9877                 if (!err)
9878                         tg3_netif_start(tp);
9879         }
9880
9881         tg3_full_unlock(tp);
9882
9883         if (irq_sync && !err)
9884                 tg3_phy_start(tp);
9885
9886         return err;
9887 }
9888
9889 static void tg3_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause)
9890 {
9891         struct tg3 *tp = netdev_priv(dev);
9892
9893         epause->autoneg = (tp->tg3_flags & TG3_FLAG_PAUSE_AUTONEG) != 0;
9894
9895         if (tp->link_config.active_flowctrl & FLOW_CTRL_RX)
9896                 epause->rx_pause = 1;
9897         else
9898                 epause->rx_pause = 0;
9899
9900         if (tp->link_config.active_flowctrl & FLOW_CTRL_TX)
9901                 epause->tx_pause = 1;
9902         else
9903                 epause->tx_pause = 0;
9904 }
9905
9906 static int tg3_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause)
9907 {
9908         struct tg3 *tp = netdev_priv(dev);
9909         int err = 0;
9910
9911         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
9912                 u32 newadv;
9913                 struct phy_device *phydev;
9914
9915                 phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
9916
9917                 if (!(phydev->supported & SUPPORTED_Pause) ||
9918                     (!(phydev->supported & SUPPORTED_Asym_Pause) &&
9919                      ((epause->rx_pause && !epause->tx_pause) ||
9920                       (!epause->rx_pause && epause->tx_pause))))
9921                         return -EINVAL;
9922
9923                 tp->link_config.flowctrl = 0;
9924                 if (epause->rx_pause) {
9925                         tp->link_config.flowctrl |= FLOW_CTRL_RX;
9926
9927                         if (epause->tx_pause) {
9928                                 tp->link_config.flowctrl |= FLOW_CTRL_TX;
9929                                 newadv = ADVERTISED_Pause;
9930                         } else
9931                                 newadv = ADVERTISED_Pause |
9932                                          ADVERTISED_Asym_Pause;
9933                 } else if (epause->tx_pause) {
9934                         tp->link_config.flowctrl |= FLOW_CTRL_TX;
9935                         newadv = ADVERTISED_Asym_Pause;
9936                 } else
9937                         newadv = 0;
9938
9939                 if (epause->autoneg)
9940                         tp->tg3_flags |= TG3_FLAG_PAUSE_AUTONEG;
9941                 else
9942                         tp->tg3_flags &= ~TG3_FLAG_PAUSE_AUTONEG;
9943
9944                 if (tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED) {
9945                         u32 oldadv = phydev->advertising &
9946                                      (ADVERTISED_Pause | ADVERTISED_Asym_Pause);
9947                         if (oldadv != newadv) {
9948                                 phydev->advertising &=
9949                                         ~(ADVERTISED_Pause |
9950                                           ADVERTISED_Asym_Pause);
9951                                 phydev->advertising |= newadv;
9952                                 if (phydev->autoneg) {
9953                                         /*
9954                                          * Always renegotiate the link to
9955                                          * inform our link partner of our
9956                                          * flow control settings, even if the
9957                                          * flow control is forced.  Let
9958                                          * tg3_adjust_link() do the final
9959                                          * flow control setup.
9960                                          */
9961                                         return phy_start_aneg(phydev);
9962                                 }
9963                         }
9964
9965                         if (!epause->autoneg)
9966                                 tg3_setup_flow_control(tp, 0, 0);
9967                 } else {
9968                         tp->link_config.orig_advertising &=
9969                                         ~(ADVERTISED_Pause |
9970                                           ADVERTISED_Asym_Pause);
9971                         tp->link_config.orig_advertising |= newadv;
9972                 }
9973         } else {
9974                 int irq_sync = 0;
9975
9976                 if (netif_running(dev)) {
9977                         tg3_netif_stop(tp);
9978                         irq_sync = 1;
9979                 }
9980
9981                 tg3_full_lock(tp, irq_sync);
9982
9983                 if (epause->autoneg)
9984                         tp->tg3_flags |= TG3_FLAG_PAUSE_AUTONEG;
9985                 else
9986                         tp->tg3_flags &= ~TG3_FLAG_PAUSE_AUTONEG;
9987                 if (epause->rx_pause)
9988                         tp->link_config.flowctrl |= FLOW_CTRL_RX;
9989                 else
9990                         tp->link_config.flowctrl &= ~FLOW_CTRL_RX;
9991                 if (epause->tx_pause)
9992                         tp->link_config.flowctrl |= FLOW_CTRL_TX;
9993                 else
9994                         tp->link_config.flowctrl &= ~FLOW_CTRL_TX;
9995
9996                 if (netif_running(dev)) {
9997                         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
9998                         err = tg3_restart_hw(tp, 1);
9999                         if (!err)
10000                                 tg3_netif_start(tp);
10001                 }
10002
10003                 tg3_full_unlock(tp);
10004         }
10005
10006         return err;
10007 }
10008
10009 static u32 tg3_get_rx_csum(struct net_device *dev)
10010 {
10011         struct tg3 *tp = netdev_priv(dev);
10012         return (tp->tg3_flags & TG3_FLAG_RX_CHECKSUMS) != 0;
10013 }
10014
10015 static int tg3_set_rx_csum(struct net_device *dev, u32 data)
10016 {
10017         struct tg3 *tp = netdev_priv(dev);
10018
10019         if (tp->tg3_flags & TG3_FLAG_BROKEN_CHECKSUMS) {
10020                 if (data != 0)
10021                         return -EINVAL;
10022                 return 0;
10023         }
10024
10025         spin_lock_bh(&tp->lock);
10026         if (data)
10027                 tp->tg3_flags |= TG3_FLAG_RX_CHECKSUMS;
10028         else
10029                 tp->tg3_flags &= ~TG3_FLAG_RX_CHECKSUMS;
10030         spin_unlock_bh(&tp->lock);
10031
10032         return 0;
10033 }
10034
10035 static int tg3_set_tx_csum(struct net_device *dev, u32 data)
10036 {
10037         struct tg3 *tp = netdev_priv(dev);
10038
10039         if (tp->tg3_flags & TG3_FLAG_BROKEN_CHECKSUMS) {
10040                 if (data != 0)
10041                         return -EINVAL;
10042                 return 0;
10043         }
10044
10045         if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
10046                 ethtool_op_set_tx_ipv6_csum(dev, data);
10047         else
10048                 ethtool_op_set_tx_csum(dev, data);
10049
10050         return 0;
10051 }
10052
10053 static int tg3_get_sset_count(struct net_device *dev, int sset)
10054 {
10055         switch (sset) {
10056         case ETH_SS_TEST:
10057                 return TG3_NUM_TEST;
10058         case ETH_SS_STATS:
10059                 return TG3_NUM_STATS;
10060         default:
10061                 return -EOPNOTSUPP;
10062         }
10063 }
10064
10065 static void tg3_get_strings(struct net_device *dev, u32 stringset, u8 *buf)
10066 {
10067         switch (stringset) {
10068         case ETH_SS_STATS:
10069                 memcpy(buf, &ethtool_stats_keys, sizeof(ethtool_stats_keys));
10070                 break;
10071         case ETH_SS_TEST:
10072                 memcpy(buf, &ethtool_test_keys, sizeof(ethtool_test_keys));
10073                 break;
10074         default:
10075                 WARN_ON(1);     /* we need a WARN() */
10076                 break;
10077         }
10078 }
10079
10080 static int tg3_phys_id(struct net_device *dev, u32 data)
10081 {
10082         struct tg3 *tp = netdev_priv(dev);
10083         int i;
10084
10085         if (!netif_running(tp->dev))
10086                 return -EAGAIN;
10087
10088         if (data == 0)
10089                 data = UINT_MAX / 2;
10090
10091         for (i = 0; i < (data * 2); i++) {
10092                 if ((i % 2) == 0)
10093                         tw32(MAC_LED_CTRL, LED_CTRL_LNKLED_OVERRIDE |
10094                                            LED_CTRL_1000MBPS_ON |
10095                                            LED_CTRL_100MBPS_ON |
10096                                            LED_CTRL_10MBPS_ON |
10097                                            LED_CTRL_TRAFFIC_OVERRIDE |
10098                                            LED_CTRL_TRAFFIC_BLINK |
10099                                            LED_CTRL_TRAFFIC_LED);
10100
10101                 else
10102                         tw32(MAC_LED_CTRL, LED_CTRL_LNKLED_OVERRIDE |
10103                                            LED_CTRL_TRAFFIC_OVERRIDE);
10104
10105                 if (msleep_interruptible(500))
10106                         break;
10107         }
10108         tw32(MAC_LED_CTRL, tp->led_ctrl);
10109         return 0;
10110 }
10111
10112 static void tg3_get_ethtool_stats(struct net_device *dev,
10113                                    struct ethtool_stats *estats, u64 *tmp_stats)
10114 {
10115         struct tg3 *tp = netdev_priv(dev);
10116         memcpy(tmp_stats, tg3_get_estats(tp), sizeof(tp->estats));
10117 }
10118
10119 #define NVRAM_TEST_SIZE 0x100
10120 #define NVRAM_SELFBOOT_FORMAT1_0_SIZE   0x14
10121 #define NVRAM_SELFBOOT_FORMAT1_2_SIZE   0x18
10122 #define NVRAM_SELFBOOT_FORMAT1_3_SIZE   0x1c
10123 #define NVRAM_SELFBOOT_HW_SIZE 0x20
10124 #define NVRAM_SELFBOOT_DATA_SIZE 0x1c
10125
10126 static int tg3_test_nvram(struct tg3 *tp)
10127 {
10128         u32 csum, magic;
10129         __be32 *buf;
10130         int i, j, k, err = 0, size;
10131
10132         if (tp->tg3_flags3 & TG3_FLG3_NO_NVRAM)
10133                 return 0;
10134
10135         if (tg3_nvram_read(tp, 0, &magic) != 0)
10136                 return -EIO;
10137
10138         if (magic == TG3_EEPROM_MAGIC)
10139                 size = NVRAM_TEST_SIZE;
10140         else if ((magic & TG3_EEPROM_MAGIC_FW_MSK) == TG3_EEPROM_MAGIC_FW) {
10141                 if ((magic & TG3_EEPROM_SB_FORMAT_MASK) ==
10142                     TG3_EEPROM_SB_FORMAT_1) {
10143                         switch (magic & TG3_EEPROM_SB_REVISION_MASK) {
10144                         case TG3_EEPROM_SB_REVISION_0:
10145                                 size = NVRAM_SELFBOOT_FORMAT1_0_SIZE;
10146                                 break;
10147                         case TG3_EEPROM_SB_REVISION_2:
10148                                 size = NVRAM_SELFBOOT_FORMAT1_2_SIZE;
10149                                 break;
10150                         case TG3_EEPROM_SB_REVISION_3:
10151                                 size = NVRAM_SELFBOOT_FORMAT1_3_SIZE;
10152                                 break;
10153                         default:
10154                                 return 0;
10155                         }
10156                 } else
10157                         return 0;
10158         } else if ((magic & TG3_EEPROM_MAGIC_HW_MSK) == TG3_EEPROM_MAGIC_HW)
10159                 size = NVRAM_SELFBOOT_HW_SIZE;
10160         else
10161                 return -EIO;
10162
10163         buf = kmalloc(size, GFP_KERNEL);
10164         if (buf == NULL)
10165                 return -ENOMEM;
10166
10167         err = -EIO;
10168         for (i = 0, j = 0; i < size; i += 4, j++) {
10169                 err = tg3_nvram_read_be32(tp, i, &buf[j]);
10170                 if (err)
10171                         break;
10172         }
10173         if (i < size)
10174                 goto out;
10175
10176         /* Selfboot format */
10177         magic = be32_to_cpu(buf[0]);
10178         if ((magic & TG3_EEPROM_MAGIC_FW_MSK) ==
10179             TG3_EEPROM_MAGIC_FW) {
10180                 u8 *buf8 = (u8 *) buf, csum8 = 0;
10181
10182                 if ((magic & TG3_EEPROM_SB_REVISION_MASK) ==
10183                     TG3_EEPROM_SB_REVISION_2) {
10184                         /* For rev 2, the csum doesn't include the MBA. */
10185                         for (i = 0; i < TG3_EEPROM_SB_F1R2_MBA_OFF; i++)
10186                                 csum8 += buf8[i];
10187                         for (i = TG3_EEPROM_SB_F1R2_MBA_OFF + 4; i < size; i++)
10188                                 csum8 += buf8[i];
10189                 } else {
10190                         for (i = 0; i < size; i++)
10191                                 csum8 += buf8[i];
10192                 }
10193
10194                 if (csum8 == 0) {
10195                         err = 0;
10196                         goto out;
10197                 }
10198
10199                 err = -EIO;
10200                 goto out;
10201         }
10202
10203         if ((magic & TG3_EEPROM_MAGIC_HW_MSK) ==
10204             TG3_EEPROM_MAGIC_HW) {
10205                 u8 data[NVRAM_SELFBOOT_DATA_SIZE];
10206                 u8 parity[NVRAM_SELFBOOT_DATA_SIZE];
10207                 u8 *buf8 = (u8 *) buf;
10208
10209                 /* Separate the parity bits and the data bytes.  */
10210                 for (i = 0, j = 0, k = 0; i < NVRAM_SELFBOOT_HW_SIZE; i++) {
10211                         if ((i == 0) || (i == 8)) {
10212                                 int l;
10213                                 u8 msk;
10214
10215                                 for (l = 0, msk = 0x80; l < 7; l++, msk >>= 1)
10216                                         parity[k++] = buf8[i] & msk;
10217                                 i++;
10218                         } else if (i == 16) {
10219                                 int l;
10220                                 u8 msk;
10221
10222                                 for (l = 0, msk = 0x20; l < 6; l++, msk >>= 1)
10223                                         parity[k++] = buf8[i] & msk;
10224                                 i++;
10225
10226                                 for (l = 0, msk = 0x80; l < 8; l++, msk >>= 1)
10227                                         parity[k++] = buf8[i] & msk;
10228                                 i++;
10229                         }
10230                         data[j++] = buf8[i];
10231                 }
10232
10233                 err = -EIO;
10234                 for (i = 0; i < NVRAM_SELFBOOT_DATA_SIZE; i++) {
10235                         u8 hw8 = hweight8(data[i]);
10236
10237                         if ((hw8 & 0x1) && parity[i])
10238                                 goto out;
10239                         else if (!(hw8 & 0x1) && !parity[i])
10240                                 goto out;
10241                 }
10242                 err = 0;
10243                 goto out;
10244         }
10245
10246         /* Bootstrap checksum at offset 0x10 */
10247         csum = calc_crc((unsigned char *) buf, 0x10);
10248         if (csum != be32_to_cpu(buf[0x10/4]))
10249                 goto out;
10250
10251         /* Manufacturing block starts at offset 0x74, checksum at 0xfc */
10252         csum = calc_crc((unsigned char *) &buf[0x74/4], 0x88);
10253         if (csum != be32_to_cpu(buf[0xfc/4]))
10254                 goto out;
10255
10256         err = 0;
10257
10258 out:
10259         kfree(buf);
10260         return err;
10261 }
10262
10263 #define TG3_SERDES_TIMEOUT_SEC  2
10264 #define TG3_COPPER_TIMEOUT_SEC  6
10265
10266 static int tg3_test_link(struct tg3 *tp)
10267 {
10268         int i, max;
10269
10270         if (!netif_running(tp->dev))
10271                 return -ENODEV;
10272
10273         if (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES)
10274                 max = TG3_SERDES_TIMEOUT_SEC;
10275         else
10276                 max = TG3_COPPER_TIMEOUT_SEC;
10277
10278         for (i = 0; i < max; i++) {
10279                 if (netif_carrier_ok(tp->dev))
10280                         return 0;
10281
10282                 if (msleep_interruptible(1000))
10283                         break;
10284         }
10285
10286         return -EIO;
10287 }
10288
10289 /* Only test the commonly used registers */
10290 static int tg3_test_registers(struct tg3 *tp)
10291 {
10292         int i, is_5705, is_5750;
10293         u32 offset, read_mask, write_mask, val, save_val, read_val;
10294         static struct {
10295                 u16 offset;
10296                 u16 flags;
10297 #define TG3_FL_5705     0x1
10298 #define TG3_FL_NOT_5705 0x2
10299 #define TG3_FL_NOT_5788 0x4
10300 #define TG3_FL_NOT_5750 0x8
10301                 u32 read_mask;
10302                 u32 write_mask;
10303         } reg_tbl[] = {
10304                 /* MAC Control Registers */
10305                 { MAC_MODE, TG3_FL_NOT_5705,
10306                         0x00000000, 0x00ef6f8c },
10307                 { MAC_MODE, TG3_FL_5705,
10308                         0x00000000, 0x01ef6b8c },
10309                 { MAC_STATUS, TG3_FL_NOT_5705,
10310                         0x03800107, 0x00000000 },
10311                 { MAC_STATUS, TG3_FL_5705,
10312                         0x03800100, 0x00000000 },
10313                 { MAC_ADDR_0_HIGH, 0x0000,
10314                         0x00000000, 0x0000ffff },
10315                 { MAC_ADDR_0_LOW, 0x0000,
10316                         0x00000000, 0xffffffff },
10317                 { MAC_RX_MTU_SIZE, 0x0000,
10318                         0x00000000, 0x0000ffff },
10319                 { MAC_TX_MODE, 0x0000,
10320                         0x00000000, 0x00000070 },
10321                 { MAC_TX_LENGTHS, 0x0000,
10322                         0x00000000, 0x00003fff },
10323                 { MAC_RX_MODE, TG3_FL_NOT_5705,
10324                         0x00000000, 0x000007fc },
10325                 { MAC_RX_MODE, TG3_FL_5705,
10326                         0x00000000, 0x000007dc },
10327                 { MAC_HASH_REG_0, 0x0000,
10328                         0x00000000, 0xffffffff },
10329                 { MAC_HASH_REG_1, 0x0000,
10330                         0x00000000, 0xffffffff },
10331                 { MAC_HASH_REG_2, 0x0000,
10332                         0x00000000, 0xffffffff },
10333                 { MAC_HASH_REG_3, 0x0000,
10334                         0x00000000, 0xffffffff },
10335
10336                 /* Receive Data and Receive BD Initiator Control Registers. */
10337                 { RCVDBDI_JUMBO_BD+0, TG3_FL_NOT_5705,
10338                         0x00000000, 0xffffffff },
10339                 { RCVDBDI_JUMBO_BD+4, TG3_FL_NOT_5705,
10340                         0x00000000, 0xffffffff },
10341                 { RCVDBDI_JUMBO_BD+8, TG3_FL_NOT_5705,
10342                         0x00000000, 0x00000003 },
10343                 { RCVDBDI_JUMBO_BD+0xc, TG3_FL_NOT_5705,
10344                         0x00000000, 0xffffffff },
10345                 { RCVDBDI_STD_BD+0, 0x0000,
10346                         0x00000000, 0xffffffff },
10347                 { RCVDBDI_STD_BD+4, 0x0000,
10348                         0x00000000, 0xffffffff },
10349                 { RCVDBDI_STD_BD+8, 0x0000,
10350                         0x00000000, 0xffff0002 },
10351                 { RCVDBDI_STD_BD+0xc, 0x0000,
10352                         0x00000000, 0xffffffff },
10353
10354                 /* Receive BD Initiator Control Registers. */
10355                 { RCVBDI_STD_THRESH, TG3_FL_NOT_5705,
10356                         0x00000000, 0xffffffff },
10357                 { RCVBDI_STD_THRESH, TG3_FL_5705,
10358                         0x00000000, 0x000003ff },
10359                 { RCVBDI_JUMBO_THRESH, TG3_FL_NOT_5705,
10360                         0x00000000, 0xffffffff },
10361
10362                 /* Host Coalescing Control Registers. */
10363                 { HOSTCC_MODE, TG3_FL_NOT_5705,
10364                         0x00000000, 0x00000004 },
10365                 { HOSTCC_MODE, TG3_FL_5705,
10366                         0x00000000, 0x000000f6 },
10367                 { HOSTCC_RXCOL_TICKS, TG3_FL_NOT_5705,
10368                         0x00000000, 0xffffffff },
10369                 { HOSTCC_RXCOL_TICKS, TG3_FL_5705,
10370                         0x00000000, 0x000003ff },
10371                 { HOSTCC_TXCOL_TICKS, TG3_FL_NOT_5705,
10372                         0x00000000, 0xffffffff },
10373                 { HOSTCC_TXCOL_TICKS, TG3_FL_5705,
10374                         0x00000000, 0x000003ff },
10375                 { HOSTCC_RXMAX_FRAMES, TG3_FL_NOT_5705,
10376                         0x00000000, 0xffffffff },
10377                 { HOSTCC_RXMAX_FRAMES, TG3_FL_5705 | TG3_FL_NOT_5788,
10378                         0x00000000, 0x000000ff },
10379                 { HOSTCC_TXMAX_FRAMES, TG3_FL_NOT_5705,
10380                         0x00000000, 0xffffffff },
10381                 { HOSTCC_TXMAX_FRAMES, TG3_FL_5705 | TG3_FL_NOT_5788,
10382                         0x00000000, 0x000000ff },
10383                 { HOSTCC_RXCOAL_TICK_INT, TG3_FL_NOT_5705,
10384                         0x00000000, 0xffffffff },
10385                 { HOSTCC_TXCOAL_TICK_INT, TG3_FL_NOT_5705,
10386                         0x00000000, 0xffffffff },
10387                 { HOSTCC_RXCOAL_MAXF_INT, TG3_FL_NOT_5705,
10388                         0x00000000, 0xffffffff },
10389                 { HOSTCC_RXCOAL_MAXF_INT, TG3_FL_5705 | TG3_FL_NOT_5788,
10390                         0x00000000, 0x000000ff },
10391                 { HOSTCC_TXCOAL_MAXF_INT, TG3_FL_NOT_5705,
10392                         0x00000000, 0xffffffff },
10393                 { HOSTCC_TXCOAL_MAXF_INT, TG3_FL_5705 | TG3_FL_NOT_5788,
10394                         0x00000000, 0x000000ff },
10395                 { HOSTCC_STAT_COAL_TICKS, TG3_FL_NOT_5705,
10396                         0x00000000, 0xffffffff },
10397                 { HOSTCC_STATS_BLK_HOST_ADDR, TG3_FL_NOT_5705,
10398                         0x00000000, 0xffffffff },
10399                 { HOSTCC_STATS_BLK_HOST_ADDR+4, TG3_FL_NOT_5705,
10400                         0x00000000, 0xffffffff },
10401                 { HOSTCC_STATUS_BLK_HOST_ADDR, 0x0000,
10402                         0x00000000, 0xffffffff },
10403                 { HOSTCC_STATUS_BLK_HOST_ADDR+4, 0x0000,
10404                         0x00000000, 0xffffffff },
10405                 { HOSTCC_STATS_BLK_NIC_ADDR, 0x0000,
10406                         0xffffffff, 0x00000000 },
10407                 { HOSTCC_STATUS_BLK_NIC_ADDR, 0x0000,
10408                         0xffffffff, 0x00000000 },
10409
10410                 /* Buffer Manager Control Registers. */
10411                 { BUFMGR_MB_POOL_ADDR, TG3_FL_NOT_5750,
10412                         0x00000000, 0x007fff80 },
10413                 { BUFMGR_MB_POOL_SIZE, TG3_FL_NOT_5750,
10414                         0x00000000, 0x007fffff },
10415                 { BUFMGR_MB_RDMA_LOW_WATER, 0x0000,
10416                         0x00000000, 0x0000003f },
10417                 { BUFMGR_MB_MACRX_LOW_WATER, 0x0000,
10418                         0x00000000, 0x000001ff },
10419                 { BUFMGR_MB_HIGH_WATER, 0x0000,
10420                         0x00000000, 0x000001ff },
10421                 { BUFMGR_DMA_DESC_POOL_ADDR, TG3_FL_NOT_5705,
10422                         0xffffffff, 0x00000000 },
10423                 { BUFMGR_DMA_DESC_POOL_SIZE, TG3_FL_NOT_5705,
10424                         0xffffffff, 0x00000000 },
10425
10426                 /* Mailbox Registers */
10427                 { GRCMBOX_RCVSTD_PROD_IDX+4, 0x0000,
10428                         0x00000000, 0x000001ff },
10429                 { GRCMBOX_RCVJUMBO_PROD_IDX+4, TG3_FL_NOT_5705,
10430                         0x00000000, 0x000001ff },
10431                 { GRCMBOX_RCVRET_CON_IDX_0+4, 0x0000,
10432                         0x00000000, 0x000007ff },
10433                 { GRCMBOX_SNDHOST_PROD_IDX_0+4, 0x0000,
10434                         0x00000000, 0x000001ff },
10435
10436                 { 0xffff, 0x0000, 0x00000000, 0x00000000 },
10437         };
10438
10439         is_5705 = is_5750 = 0;
10440         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
10441                 is_5705 = 1;
10442                 if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS)
10443                         is_5750 = 1;
10444         }
10445
10446         for (i = 0; reg_tbl[i].offset != 0xffff; i++) {
10447                 if (is_5705 && (reg_tbl[i].flags & TG3_FL_NOT_5705))
10448                         continue;
10449
10450                 if (!is_5705 && (reg_tbl[i].flags & TG3_FL_5705))
10451                         continue;
10452
10453                 if ((tp->tg3_flags2 & TG3_FLG2_IS_5788) &&
10454                     (reg_tbl[i].flags & TG3_FL_NOT_5788))
10455                         continue;
10456
10457                 if (is_5750 && (reg_tbl[i].flags & TG3_FL_NOT_5750))
10458                         continue;
10459
10460                 offset = (u32) reg_tbl[i].offset;
10461                 read_mask = reg_tbl[i].read_mask;
10462                 write_mask = reg_tbl[i].write_mask;
10463
10464                 /* Save the original register content */
10465                 save_val = tr32(offset);
10466
10467                 /* Determine the read-only value. */
10468                 read_val = save_val & read_mask;
10469
10470                 /* Write zero to the register, then make sure the read-only bits
10471                  * are not changed and the read/write bits are all zeros.
10472                  */
10473                 tw32(offset, 0);
10474
10475                 val = tr32(offset);
10476
10477                 /* Test the read-only and read/write bits. */
10478                 if (((val & read_mask) != read_val) || (val & write_mask))
10479                         goto out;
10480
10481                 /* Write ones to all the bits defined by RdMask and WrMask, then
10482                  * make sure the read-only bits are not changed and the
10483                  * read/write bits are all ones.
10484                  */
10485                 tw32(offset, read_mask | write_mask);
10486
10487                 val = tr32(offset);
10488
10489                 /* Test the read-only bits. */
10490                 if ((val & read_mask) != read_val)
10491                         goto out;
10492
10493                 /* Test the read/write bits. */
10494                 if ((val & write_mask) != write_mask)
10495                         goto out;
10496
10497                 tw32(offset, save_val);
10498         }
10499
10500         return 0;
10501
10502 out:
10503         if (netif_msg_hw(tp))
10504                 netdev_err(tp->dev,
10505                            "Register test failed at offset %x\n", offset);
10506         tw32(offset, save_val);
10507         return -EIO;
10508 }
10509
10510 static int tg3_do_mem_test(struct tg3 *tp, u32 offset, u32 len)
10511 {
10512         static const u32 test_pattern[] = { 0x00000000, 0xffffffff, 0xaa55a55a };
10513         int i;
10514         u32 j;
10515
10516         for (i = 0; i < ARRAY_SIZE(test_pattern); i++) {
10517                 for (j = 0; j < len; j += 4) {
10518                         u32 val;
10519
10520                         tg3_write_mem(tp, offset + j, test_pattern[i]);
10521                         tg3_read_mem(tp, offset + j, &val);
10522                         if (val != test_pattern[i])
10523                                 return -EIO;
10524                 }
10525         }
10526         return 0;
10527 }
10528
10529 static int tg3_test_memory(struct tg3 *tp)
10530 {
10531         static struct mem_entry {
10532                 u32 offset;
10533                 u32 len;
10534         } mem_tbl_570x[] = {
10535                 { 0x00000000, 0x00b50},
10536                 { 0x00002000, 0x1c000},
10537                 { 0xffffffff, 0x00000}
10538         }, mem_tbl_5705[] = {
10539                 { 0x00000100, 0x0000c},
10540                 { 0x00000200, 0x00008},
10541                 { 0x00004000, 0x00800},
10542                 { 0x00006000, 0x01000},
10543                 { 0x00008000, 0x02000},
10544                 { 0x00010000, 0x0e000},
10545                 { 0xffffffff, 0x00000}
10546         }, mem_tbl_5755[] = {
10547                 { 0x00000200, 0x00008},
10548                 { 0x00004000, 0x00800},
10549                 { 0x00006000, 0x00800},
10550                 { 0x00008000, 0x02000},
10551                 { 0x00010000, 0x0c000},
10552                 { 0xffffffff, 0x00000}
10553         }, mem_tbl_5906[] = {
10554                 { 0x00000200, 0x00008},
10555                 { 0x00004000, 0x00400},
10556                 { 0x00006000, 0x00400},
10557                 { 0x00008000, 0x01000},
10558                 { 0x00010000, 0x01000},
10559                 { 0xffffffff, 0x00000}
10560         }, mem_tbl_5717[] = {
10561                 { 0x00000200, 0x00008},
10562                 { 0x00010000, 0x0a000},
10563                 { 0x00020000, 0x13c00},
10564                 { 0xffffffff, 0x00000}
10565         }, mem_tbl_57765[] = {
10566                 { 0x00000200, 0x00008},
10567                 { 0x00004000, 0x00800},
10568                 { 0x00006000, 0x09800},
10569                 { 0x00010000, 0x0a000},
10570                 { 0xffffffff, 0x00000}
10571         };
10572         struct mem_entry *mem_tbl;
10573         int err = 0;
10574         int i;
10575
10576         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717)
10577                 mem_tbl = mem_tbl_5717;
10578         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
10579                 mem_tbl = mem_tbl_57765;
10580         else if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
10581                 mem_tbl = mem_tbl_5755;
10582         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
10583                 mem_tbl = mem_tbl_5906;
10584         else if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
10585                 mem_tbl = mem_tbl_5705;
10586         else
10587                 mem_tbl = mem_tbl_570x;
10588
10589         for (i = 0; mem_tbl[i].offset != 0xffffffff; i++) {
10590                 if ((err = tg3_do_mem_test(tp, mem_tbl[i].offset,
10591                     mem_tbl[i].len)) != 0)
10592                         break;
10593         }
10594
10595         return err;
10596 }
10597
10598 #define TG3_MAC_LOOPBACK        0
10599 #define TG3_PHY_LOOPBACK        1
10600
10601 static int tg3_run_loopback(struct tg3 *tp, int loopback_mode)
10602 {
10603         u32 mac_mode, rx_start_idx, rx_idx, tx_idx, opaque_key;
10604         u32 desc_idx, coal_now;
10605         struct sk_buff *skb, *rx_skb;
10606         u8 *tx_data;
10607         dma_addr_t map;
10608         int num_pkts, tx_len, rx_len, i, err;
10609         struct tg3_rx_buffer_desc *desc;
10610         struct tg3_napi *tnapi, *rnapi;
10611         struct tg3_rx_prodring_set *tpr = &tp->prodring[0];
10612
10613         tnapi = &tp->napi[0];
10614         rnapi = &tp->napi[0];
10615         if (tp->irq_cnt > 1) {
10616                 rnapi = &tp->napi[1];
10617                 if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
10618                         tnapi = &tp->napi[1];
10619         }
10620         coal_now = tnapi->coal_now | rnapi->coal_now;
10621
10622         if (loopback_mode == TG3_MAC_LOOPBACK) {
10623                 /* HW errata - mac loopback fails in some cases on 5780.
10624                  * Normal traffic and PHY loopback are not affected by
10625                  * errata.
10626                  */
10627                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780)
10628                         return 0;
10629
10630                 mac_mode = (tp->mac_mode & ~MAC_MODE_PORT_MODE_MASK) |
10631                            MAC_MODE_PORT_INT_LPBACK;
10632                 if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
10633                         mac_mode |= MAC_MODE_LINK_POLARITY;
10634                 if (tp->tg3_flags & TG3_FLAG_10_100_ONLY)
10635                         mac_mode |= MAC_MODE_PORT_MODE_MII;
10636                 else
10637                         mac_mode |= MAC_MODE_PORT_MODE_GMII;
10638                 tw32(MAC_MODE, mac_mode);
10639         } else if (loopback_mode == TG3_PHY_LOOPBACK) {
10640                 u32 val;
10641
10642                 if (tp->tg3_flags3 & TG3_FLG3_PHY_IS_FET) {
10643                         tg3_phy_fet_toggle_apd(tp, false);
10644                         val = BMCR_LOOPBACK | BMCR_FULLDPLX | BMCR_SPEED100;
10645                 } else
10646                         val = BMCR_LOOPBACK | BMCR_FULLDPLX | BMCR_SPEED1000;
10647
10648                 tg3_phy_toggle_automdix(tp, 0);
10649
10650                 tg3_writephy(tp, MII_BMCR, val);
10651                 udelay(40);
10652
10653                 mac_mode = tp->mac_mode & ~MAC_MODE_PORT_MODE_MASK;
10654                 if (tp->tg3_flags3 & TG3_FLG3_PHY_IS_FET) {
10655                         tg3_writephy(tp, MII_TG3_FET_PTEST,
10656                                      MII_TG3_FET_PTEST_FRC_TX_LINK |
10657                                      MII_TG3_FET_PTEST_FRC_TX_LOCK);
10658                         /* The write needs to be flushed for the AC131 */
10659                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
10660                                 tg3_readphy(tp, MII_TG3_FET_PTEST, &val);
10661                         mac_mode |= MAC_MODE_PORT_MODE_MII;
10662                 } else
10663                         mac_mode |= MAC_MODE_PORT_MODE_GMII;
10664
10665                 /* reset to prevent losing 1st rx packet intermittently */
10666                 if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES) {
10667                         tw32_f(MAC_RX_MODE, RX_MODE_RESET);
10668                         udelay(10);
10669                         tw32_f(MAC_RX_MODE, tp->rx_mode);
10670                 }
10671                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) {
10672                         u32 masked_phy_id = tp->phy_id & TG3_PHY_ID_MASK;
10673                         if (masked_phy_id == TG3_PHY_ID_BCM5401)
10674                                 mac_mode &= ~MAC_MODE_LINK_POLARITY;
10675                         else if (masked_phy_id == TG3_PHY_ID_BCM5411)
10676                                 mac_mode |= MAC_MODE_LINK_POLARITY;
10677                         tg3_writephy(tp, MII_TG3_EXT_CTRL,
10678                                      MII_TG3_EXT_CTRL_LNK3_LED_MODE);
10679                 }
10680                 tw32(MAC_MODE, mac_mode);
10681         } else {
10682                 return -EINVAL;
10683         }
10684
10685         err = -EIO;
10686
10687         tx_len = 1514;
10688         skb = netdev_alloc_skb(tp->dev, tx_len);
10689         if (!skb)
10690                 return -ENOMEM;
10691
10692         tx_data = skb_put(skb, tx_len);
10693         memcpy(tx_data, tp->dev->dev_addr, 6);
10694         memset(tx_data + 6, 0x0, 8);
10695
10696         tw32(MAC_RX_MTU_SIZE, tx_len + 4);
10697
10698         for (i = 14; i < tx_len; i++)
10699                 tx_data[i] = (u8) (i & 0xff);
10700
10701         map = pci_map_single(tp->pdev, skb->data, tx_len, PCI_DMA_TODEVICE);
10702         if (pci_dma_mapping_error(tp->pdev, map)) {
10703                 dev_kfree_skb(skb);
10704                 return -EIO;
10705         }
10706
10707         tw32_f(HOSTCC_MODE, tp->coalesce_mode | HOSTCC_MODE_ENABLE |
10708                rnapi->coal_now);
10709
10710         udelay(10);
10711
10712         rx_start_idx = rnapi->hw_status->idx[0].rx_producer;
10713
10714         num_pkts = 0;
10715
10716         tg3_set_txd(tnapi, tnapi->tx_prod, map, tx_len, 0, 1);
10717
10718         tnapi->tx_prod++;
10719         num_pkts++;
10720
10721         tw32_tx_mbox(tnapi->prodmbox, tnapi->tx_prod);
10722         tr32_mailbox(tnapi->prodmbox);
10723
10724         udelay(10);
10725
10726         /* 350 usec to allow enough time on some 10/100 Mbps devices.  */
10727         for (i = 0; i < 35; i++) {
10728                 tw32_f(HOSTCC_MODE, tp->coalesce_mode | HOSTCC_MODE_ENABLE |
10729                        coal_now);
10730
10731                 udelay(10);
10732
10733                 tx_idx = tnapi->hw_status->idx[0].tx_consumer;
10734                 rx_idx = rnapi->hw_status->idx[0].rx_producer;
10735                 if ((tx_idx == tnapi->tx_prod) &&
10736                     (rx_idx == (rx_start_idx + num_pkts)))
10737                         break;
10738         }
10739
10740         pci_unmap_single(tp->pdev, map, tx_len, PCI_DMA_TODEVICE);
10741         dev_kfree_skb(skb);
10742
10743         if (tx_idx != tnapi->tx_prod)
10744                 goto out;
10745
10746         if (rx_idx != rx_start_idx + num_pkts)
10747                 goto out;
10748
10749         desc = &rnapi->rx_rcb[rx_start_idx];
10750         desc_idx = desc->opaque & RXD_OPAQUE_INDEX_MASK;
10751         opaque_key = desc->opaque & RXD_OPAQUE_RING_MASK;
10752         if (opaque_key != RXD_OPAQUE_RING_STD)
10753                 goto out;
10754
10755         if ((desc->err_vlan & RXD_ERR_MASK) != 0 &&
10756             (desc->err_vlan != RXD_ERR_ODD_NIBBLE_RCVD_MII))
10757                 goto out;
10758
10759         rx_len = ((desc->idx_len & RXD_LEN_MASK) >> RXD_LEN_SHIFT) - 4;
10760         if (rx_len != tx_len)
10761                 goto out;
10762
10763         rx_skb = tpr->rx_std_buffers[desc_idx].skb;
10764
10765         map = dma_unmap_addr(&tpr->rx_std_buffers[desc_idx], mapping);
10766         pci_dma_sync_single_for_cpu(tp->pdev, map, rx_len, PCI_DMA_FROMDEVICE);
10767
10768         for (i = 14; i < tx_len; i++) {
10769                 if (*(rx_skb->data + i) != (u8) (i & 0xff))
10770                         goto out;
10771         }
10772         err = 0;
10773
10774         /* tg3_free_rings will unmap and free the rx_skb */
10775 out:
10776         return err;
10777 }
10778
10779 #define TG3_MAC_LOOPBACK_FAILED         1
10780 #define TG3_PHY_LOOPBACK_FAILED         2
10781 #define TG3_LOOPBACK_FAILED             (TG3_MAC_LOOPBACK_FAILED |      \
10782                                          TG3_PHY_LOOPBACK_FAILED)
10783
10784 static int tg3_test_loopback(struct tg3 *tp)
10785 {
10786         int err = 0;
10787         u32 cpmuctrl = 0;
10788
10789         if (!netif_running(tp->dev))
10790                 return TG3_LOOPBACK_FAILED;
10791
10792         err = tg3_reset_hw(tp, 1);
10793         if (err)
10794                 return TG3_LOOPBACK_FAILED;
10795
10796         /* Turn off gphy autopowerdown. */
10797         if (tp->tg3_flags3 & TG3_FLG3_PHY_ENABLE_APD)
10798                 tg3_phy_toggle_apd(tp, false);
10799
10800         if (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) {
10801                 int i;
10802                 u32 status;
10803
10804                 tw32(TG3_CPMU_MUTEX_REQ, CPMU_MUTEX_REQ_DRIVER);
10805
10806                 /* Wait for up to 40 microseconds to acquire lock. */
10807                 for (i = 0; i < 4; i++) {
10808                         status = tr32(TG3_CPMU_MUTEX_GNT);
10809                         if (status == CPMU_MUTEX_GNT_DRIVER)
10810                                 break;
10811                         udelay(10);
10812                 }
10813
10814                 if (status != CPMU_MUTEX_GNT_DRIVER)
10815                         return TG3_LOOPBACK_FAILED;
10816
10817                 /* Turn off link-based power management. */
10818                 cpmuctrl = tr32(TG3_CPMU_CTRL);
10819                 tw32(TG3_CPMU_CTRL,
10820                      cpmuctrl & ~(CPMU_CTRL_LINK_SPEED_MODE |
10821                                   CPMU_CTRL_LINK_AWARE_MODE));
10822         }
10823
10824         if (tg3_run_loopback(tp, TG3_MAC_LOOPBACK))
10825                 err |= TG3_MAC_LOOPBACK_FAILED;
10826
10827         if (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) {
10828                 tw32(TG3_CPMU_CTRL, cpmuctrl);
10829
10830                 /* Release the mutex */
10831                 tw32(TG3_CPMU_MUTEX_GNT, CPMU_MUTEX_GNT_DRIVER);
10832         }
10833
10834         if (!(tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) &&
10835             !(tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB)) {
10836                 if (tg3_run_loopback(tp, TG3_PHY_LOOPBACK))
10837                         err |= TG3_PHY_LOOPBACK_FAILED;
10838         }
10839
10840         /* Re-enable gphy autopowerdown. */
10841         if (tp->tg3_flags3 & TG3_FLG3_PHY_ENABLE_APD)
10842                 tg3_phy_toggle_apd(tp, true);
10843
10844         return err;
10845 }
10846
10847 static void tg3_self_test(struct net_device *dev, struct ethtool_test *etest,
10848                           u64 *data)
10849 {
10850         struct tg3 *tp = netdev_priv(dev);
10851
10852         if (tp->link_config.phy_is_low_power)
10853                 tg3_set_power_state(tp, PCI_D0);
10854
10855         memset(data, 0, sizeof(u64) * TG3_NUM_TEST);
10856
10857         if (tg3_test_nvram(tp) != 0) {
10858                 etest->flags |= ETH_TEST_FL_FAILED;
10859                 data[0] = 1;
10860         }
10861         if (tg3_test_link(tp) != 0) {
10862                 etest->flags |= ETH_TEST_FL_FAILED;
10863                 data[1] = 1;
10864         }
10865         if (etest->flags & ETH_TEST_FL_OFFLINE) {
10866                 int err, err2 = 0, irq_sync = 0;
10867
10868                 if (netif_running(dev)) {
10869                         tg3_phy_stop(tp);
10870                         tg3_netif_stop(tp);
10871                         irq_sync = 1;
10872                 }
10873
10874                 tg3_full_lock(tp, irq_sync);
10875
10876                 tg3_halt(tp, RESET_KIND_SUSPEND, 1);
10877                 err = tg3_nvram_lock(tp);
10878                 tg3_halt_cpu(tp, RX_CPU_BASE);
10879                 if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
10880                         tg3_halt_cpu(tp, TX_CPU_BASE);
10881                 if (!err)
10882                         tg3_nvram_unlock(tp);
10883
10884                 if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES)
10885                         tg3_phy_reset(tp);
10886
10887                 if (tg3_test_registers(tp) != 0) {
10888                         etest->flags |= ETH_TEST_FL_FAILED;
10889                         data[2] = 1;
10890                 }
10891                 if (tg3_test_memory(tp) != 0) {
10892                         etest->flags |= ETH_TEST_FL_FAILED;
10893                         data[3] = 1;
10894                 }
10895                 if ((data[4] = tg3_test_loopback(tp)) != 0)
10896                         etest->flags |= ETH_TEST_FL_FAILED;
10897
10898                 tg3_full_unlock(tp);
10899
10900                 if (tg3_test_interrupt(tp) != 0) {
10901                         etest->flags |= ETH_TEST_FL_FAILED;
10902                         data[5] = 1;
10903                 }
10904
10905                 tg3_full_lock(tp, 0);
10906
10907                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
10908                 if (netif_running(dev)) {
10909                         tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
10910                         err2 = tg3_restart_hw(tp, 1);
10911                         if (!err2)
10912                                 tg3_netif_start(tp);
10913                 }
10914
10915                 tg3_full_unlock(tp);
10916
10917                 if (irq_sync && !err2)
10918                         tg3_phy_start(tp);
10919         }
10920         if (tp->link_config.phy_is_low_power)
10921                 tg3_set_power_state(tp, PCI_D3hot);
10922
10923 }
10924
10925 static int tg3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
10926 {
10927         struct mii_ioctl_data *data = if_mii(ifr);
10928         struct tg3 *tp = netdev_priv(dev);
10929         int err;
10930
10931         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
10932                 struct phy_device *phydev;
10933                 if (!(tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED))
10934                         return -EAGAIN;
10935                 phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
10936                 return phy_mii_ioctl(phydev, data, cmd);
10937         }
10938
10939         switch (cmd) {
10940         case SIOCGMIIPHY:
10941                 data->phy_id = tp->phy_addr;
10942
10943                 /* fallthru */
10944         case SIOCGMIIREG: {
10945                 u32 mii_regval;
10946
10947                 if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)
10948                         break;                  /* We have no PHY */
10949
10950                 if (tp->link_config.phy_is_low_power)
10951                         return -EAGAIN;
10952
10953                 spin_lock_bh(&tp->lock);
10954                 err = tg3_readphy(tp, data->reg_num & 0x1f, &mii_regval);
10955                 spin_unlock_bh(&tp->lock);
10956
10957                 data->val_out = mii_regval;
10958
10959                 return err;
10960         }
10961
10962         case SIOCSMIIREG:
10963                 if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)
10964                         break;                  /* We have no PHY */
10965
10966                 if (tp->link_config.phy_is_low_power)
10967                         return -EAGAIN;
10968
10969                 spin_lock_bh(&tp->lock);
10970                 err = tg3_writephy(tp, data->reg_num & 0x1f, data->val_in);
10971                 spin_unlock_bh(&tp->lock);
10972
10973                 return err;
10974
10975         default:
10976                 /* do nothing */
10977                 break;
10978         }
10979         return -EOPNOTSUPP;
10980 }
10981
10982 #if TG3_VLAN_TAG_USED
10983 static void tg3_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
10984 {
10985         struct tg3 *tp = netdev_priv(dev);
10986
10987         if (!netif_running(dev)) {
10988                 tp->vlgrp = grp;
10989                 return;
10990         }
10991
10992         tg3_netif_stop(tp);
10993
10994         tg3_full_lock(tp, 0);
10995
10996         tp->vlgrp = grp;
10997
10998         /* Update RX_MODE_KEEP_VLAN_TAG bit in RX_MODE register. */
10999         __tg3_set_rx_mode(dev);
11000
11001         tg3_netif_start(tp);
11002
11003         tg3_full_unlock(tp);
11004 }
11005 #endif
11006
11007 static int tg3_get_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
11008 {
11009         struct tg3 *tp = netdev_priv(dev);
11010
11011         memcpy(ec, &tp->coal, sizeof(*ec));
11012         return 0;
11013 }
11014
11015 static int tg3_set_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
11016 {
11017         struct tg3 *tp = netdev_priv(dev);
11018         u32 max_rxcoal_tick_int = 0, max_txcoal_tick_int = 0;
11019         u32 max_stat_coal_ticks = 0, min_stat_coal_ticks = 0;
11020
11021         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
11022                 max_rxcoal_tick_int = MAX_RXCOAL_TICK_INT;
11023                 max_txcoal_tick_int = MAX_TXCOAL_TICK_INT;
11024                 max_stat_coal_ticks = MAX_STAT_COAL_TICKS;
11025                 min_stat_coal_ticks = MIN_STAT_COAL_TICKS;
11026         }
11027
11028         if ((ec->rx_coalesce_usecs > MAX_RXCOL_TICKS) ||
11029             (ec->tx_coalesce_usecs > MAX_TXCOL_TICKS) ||
11030             (ec->rx_max_coalesced_frames > MAX_RXMAX_FRAMES) ||
11031             (ec->tx_max_coalesced_frames > MAX_TXMAX_FRAMES) ||
11032             (ec->rx_coalesce_usecs_irq > max_rxcoal_tick_int) ||
11033             (ec->tx_coalesce_usecs_irq > max_txcoal_tick_int) ||
11034             (ec->rx_max_coalesced_frames_irq > MAX_RXCOAL_MAXF_INT) ||
11035             (ec->tx_max_coalesced_frames_irq > MAX_TXCOAL_MAXF_INT) ||
11036             (ec->stats_block_coalesce_usecs > max_stat_coal_ticks) ||
11037             (ec->stats_block_coalesce_usecs < min_stat_coal_ticks))
11038                 return -EINVAL;
11039
11040         /* No rx interrupts will be generated if both are zero */
11041         if ((ec->rx_coalesce_usecs == 0) &&
11042             (ec->rx_max_coalesced_frames == 0))
11043                 return -EINVAL;
11044
11045         /* No tx interrupts will be generated if both are zero */
11046         if ((ec->tx_coalesce_usecs == 0) &&
11047             (ec->tx_max_coalesced_frames == 0))
11048                 return -EINVAL;
11049
11050         /* Only copy relevant parameters, ignore all others. */
11051         tp->coal.rx_coalesce_usecs = ec->rx_coalesce_usecs;
11052         tp->coal.tx_coalesce_usecs = ec->tx_coalesce_usecs;
11053         tp->coal.rx_max_coalesced_frames = ec->rx_max_coalesced_frames;
11054         tp->coal.tx_max_coalesced_frames = ec->tx_max_coalesced_frames;
11055         tp->coal.rx_coalesce_usecs_irq = ec->rx_coalesce_usecs_irq;
11056         tp->coal.tx_coalesce_usecs_irq = ec->tx_coalesce_usecs_irq;
11057         tp->coal.rx_max_coalesced_frames_irq = ec->rx_max_coalesced_frames_irq;
11058         tp->coal.tx_max_coalesced_frames_irq = ec->tx_max_coalesced_frames_irq;
11059         tp->coal.stats_block_coalesce_usecs = ec->stats_block_coalesce_usecs;
11060
11061         if (netif_running(dev)) {
11062                 tg3_full_lock(tp, 0);
11063                 __tg3_set_coalesce(tp, &tp->coal);
11064                 tg3_full_unlock(tp);
11065         }
11066         return 0;
11067 }
11068
11069 static const struct ethtool_ops tg3_ethtool_ops = {
11070         .get_settings           = tg3_get_settings,
11071         .set_settings           = tg3_set_settings,
11072         .get_drvinfo            = tg3_get_drvinfo,
11073         .get_regs_len           = tg3_get_regs_len,
11074         .get_regs               = tg3_get_regs,
11075         .get_wol                = tg3_get_wol,
11076         .set_wol                = tg3_set_wol,
11077         .get_msglevel           = tg3_get_msglevel,
11078         .set_msglevel           = tg3_set_msglevel,
11079         .nway_reset             = tg3_nway_reset,
11080         .get_link               = ethtool_op_get_link,
11081         .get_eeprom_len         = tg3_get_eeprom_len,
11082         .get_eeprom             = tg3_get_eeprom,
11083         .set_eeprom             = tg3_set_eeprom,
11084         .get_ringparam          = tg3_get_ringparam,
11085         .set_ringparam          = tg3_set_ringparam,
11086         .get_pauseparam         = tg3_get_pauseparam,
11087         .set_pauseparam         = tg3_set_pauseparam,
11088         .get_rx_csum            = tg3_get_rx_csum,
11089         .set_rx_csum            = tg3_set_rx_csum,
11090         .set_tx_csum            = tg3_set_tx_csum,
11091         .set_sg                 = ethtool_op_set_sg,
11092         .set_tso                = tg3_set_tso,
11093         .self_test              = tg3_self_test,
11094         .get_strings            = tg3_get_strings,
11095         .phys_id                = tg3_phys_id,
11096         .get_ethtool_stats      = tg3_get_ethtool_stats,
11097         .get_coalesce           = tg3_get_coalesce,
11098         .set_coalesce           = tg3_set_coalesce,
11099         .get_sset_count         = tg3_get_sset_count,
11100 };
11101
11102 static void __devinit tg3_get_eeprom_size(struct tg3 *tp)
11103 {
11104         u32 cursize, val, magic;
11105
11106         tp->nvram_size = EEPROM_CHIP_SIZE;
11107
11108         if (tg3_nvram_read(tp, 0, &magic) != 0)
11109                 return;
11110
11111         if ((magic != TG3_EEPROM_MAGIC) &&
11112             ((magic & TG3_EEPROM_MAGIC_FW_MSK) != TG3_EEPROM_MAGIC_FW) &&
11113             ((magic & TG3_EEPROM_MAGIC_HW_MSK) != TG3_EEPROM_MAGIC_HW))
11114                 return;
11115
11116         /*
11117          * Size the chip by reading offsets at increasing powers of two.
11118          * When we encounter our validation signature, we know the addressing
11119          * has wrapped around, and thus have our chip size.
11120          */
11121         cursize = 0x10;
11122
11123         while (cursize < tp->nvram_size) {
11124                 if (tg3_nvram_read(tp, cursize, &val) != 0)
11125                         return;
11126
11127                 if (val == magic)
11128                         break;
11129
11130                 cursize <<= 1;
11131         }
11132
11133         tp->nvram_size = cursize;
11134 }
11135
11136 static void __devinit tg3_get_nvram_size(struct tg3 *tp)
11137 {
11138         u32 val;
11139
11140         if ((tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) ||
11141             tg3_nvram_read(tp, 0, &val) != 0)
11142                 return;
11143
11144         /* Selfboot format */
11145         if (val != TG3_EEPROM_MAGIC) {
11146                 tg3_get_eeprom_size(tp);
11147                 return;
11148         }
11149
11150         if (tg3_nvram_read(tp, 0xf0, &val) == 0) {
11151                 if (val != 0) {
11152                         /* This is confusing.  We want to operate on the
11153                          * 16-bit value at offset 0xf2.  The tg3_nvram_read()
11154                          * call will read from NVRAM and byteswap the data
11155                          * according to the byteswapping settings for all
11156                          * other register accesses.  This ensures the data we
11157                          * want will always reside in the lower 16-bits.
11158                          * However, the data in NVRAM is in LE format, which
11159                          * means the data from the NVRAM read will always be
11160                          * opposite the endianness of the CPU.  The 16-bit
11161                          * byteswap then brings the data to CPU endianness.
11162                          */
11163                         tp->nvram_size = swab16((u16)(val & 0x0000ffff)) * 1024;
11164                         return;
11165                 }
11166         }
11167         tp->nvram_size = TG3_NVRAM_SIZE_512KB;
11168 }
11169
11170 static void __devinit tg3_get_nvram_info(struct tg3 *tp)
11171 {
11172         u32 nvcfg1;
11173
11174         nvcfg1 = tr32(NVRAM_CFG1);
11175         if (nvcfg1 & NVRAM_CFG1_FLASHIF_ENAB) {
11176                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11177         } else {
11178                 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
11179                 tw32(NVRAM_CFG1, nvcfg1);
11180         }
11181
11182         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750) ||
11183             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
11184                 switch (nvcfg1 & NVRAM_CFG1_VENDOR_MASK) {
11185                 case FLASH_VENDOR_ATMEL_FLASH_BUFFERED:
11186                         tp->nvram_jedecnum = JEDEC_ATMEL;
11187                         tp->nvram_pagesize = ATMEL_AT45DB0X1B_PAGE_SIZE;
11188                         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11189                         break;
11190                 case FLASH_VENDOR_ATMEL_FLASH_UNBUFFERED:
11191                         tp->nvram_jedecnum = JEDEC_ATMEL;
11192                         tp->nvram_pagesize = ATMEL_AT25F512_PAGE_SIZE;
11193                         break;
11194                 case FLASH_VENDOR_ATMEL_EEPROM:
11195                         tp->nvram_jedecnum = JEDEC_ATMEL;
11196                         tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
11197                         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11198                         break;
11199                 case FLASH_VENDOR_ST:
11200                         tp->nvram_jedecnum = JEDEC_ST;
11201                         tp->nvram_pagesize = ST_M45PEX0_PAGE_SIZE;
11202                         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11203                         break;
11204                 case FLASH_VENDOR_SAIFUN:
11205                         tp->nvram_jedecnum = JEDEC_SAIFUN;
11206                         tp->nvram_pagesize = SAIFUN_SA25F0XX_PAGE_SIZE;
11207                         break;
11208                 case FLASH_VENDOR_SST_SMALL:
11209                 case FLASH_VENDOR_SST_LARGE:
11210                         tp->nvram_jedecnum = JEDEC_SST;
11211                         tp->nvram_pagesize = SST_25VF0X0_PAGE_SIZE;
11212                         break;
11213                 }
11214         } else {
11215                 tp->nvram_jedecnum = JEDEC_ATMEL;
11216                 tp->nvram_pagesize = ATMEL_AT45DB0X1B_PAGE_SIZE;
11217                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11218         }
11219 }
11220
11221 static void __devinit tg3_nvram_get_pagesize(struct tg3 *tp, u32 nvmcfg1)
11222 {
11223         switch (nvmcfg1 & NVRAM_CFG1_5752PAGE_SIZE_MASK) {
11224         case FLASH_5752PAGE_SIZE_256:
11225                 tp->nvram_pagesize = 256;
11226                 break;
11227         case FLASH_5752PAGE_SIZE_512:
11228                 tp->nvram_pagesize = 512;
11229                 break;
11230         case FLASH_5752PAGE_SIZE_1K:
11231                 tp->nvram_pagesize = 1024;
11232                 break;
11233         case FLASH_5752PAGE_SIZE_2K:
11234                 tp->nvram_pagesize = 2048;
11235                 break;
11236         case FLASH_5752PAGE_SIZE_4K:
11237                 tp->nvram_pagesize = 4096;
11238                 break;
11239         case FLASH_5752PAGE_SIZE_264:
11240                 tp->nvram_pagesize = 264;
11241                 break;
11242         case FLASH_5752PAGE_SIZE_528:
11243                 tp->nvram_pagesize = 528;
11244                 break;
11245         }
11246 }
11247
11248 static void __devinit tg3_get_5752_nvram_info(struct tg3 *tp)
11249 {
11250         u32 nvcfg1;
11251
11252         nvcfg1 = tr32(NVRAM_CFG1);
11253
11254         /* NVRAM protection for TPM */
11255         if (nvcfg1 & (1 << 27))
11256                 tp->tg3_flags3 |= TG3_FLG3_PROTECTED_NVRAM;
11257
11258         switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11259         case FLASH_5752VENDOR_ATMEL_EEPROM_64KHZ:
11260         case FLASH_5752VENDOR_ATMEL_EEPROM_376KHZ:
11261                 tp->nvram_jedecnum = JEDEC_ATMEL;
11262                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11263                 break;
11264         case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
11265                 tp->nvram_jedecnum = JEDEC_ATMEL;
11266                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11267                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11268                 break;
11269         case FLASH_5752VENDOR_ST_M45PE10:
11270         case FLASH_5752VENDOR_ST_M45PE20:
11271         case FLASH_5752VENDOR_ST_M45PE40:
11272                 tp->nvram_jedecnum = JEDEC_ST;
11273                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11274                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11275                 break;
11276         }
11277
11278         if (tp->tg3_flags2 & TG3_FLG2_FLASH) {
11279                 tg3_nvram_get_pagesize(tp, nvcfg1);
11280         } else {
11281                 /* For eeprom, set pagesize to maximum eeprom size */
11282                 tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
11283
11284                 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
11285                 tw32(NVRAM_CFG1, nvcfg1);
11286         }
11287 }
11288
11289 static void __devinit tg3_get_5755_nvram_info(struct tg3 *tp)
11290 {
11291         u32 nvcfg1, protect = 0;
11292
11293         nvcfg1 = tr32(NVRAM_CFG1);
11294
11295         /* NVRAM protection for TPM */
11296         if (nvcfg1 & (1 << 27)) {
11297                 tp->tg3_flags3 |= TG3_FLG3_PROTECTED_NVRAM;
11298                 protect = 1;
11299         }
11300
11301         nvcfg1 &= NVRAM_CFG1_5752VENDOR_MASK;
11302         switch (nvcfg1) {
11303         case FLASH_5755VENDOR_ATMEL_FLASH_1:
11304         case FLASH_5755VENDOR_ATMEL_FLASH_2:
11305         case FLASH_5755VENDOR_ATMEL_FLASH_3:
11306         case FLASH_5755VENDOR_ATMEL_FLASH_5:
11307                 tp->nvram_jedecnum = JEDEC_ATMEL;
11308                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11309                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11310                 tp->nvram_pagesize = 264;
11311                 if (nvcfg1 == FLASH_5755VENDOR_ATMEL_FLASH_1 ||
11312                     nvcfg1 == FLASH_5755VENDOR_ATMEL_FLASH_5)
11313                         tp->nvram_size = (protect ? 0x3e200 :
11314                                           TG3_NVRAM_SIZE_512KB);
11315                 else if (nvcfg1 == FLASH_5755VENDOR_ATMEL_FLASH_2)
11316                         tp->nvram_size = (protect ? 0x1f200 :
11317                                           TG3_NVRAM_SIZE_256KB);
11318                 else
11319                         tp->nvram_size = (protect ? 0x1f200 :
11320                                           TG3_NVRAM_SIZE_128KB);
11321                 break;
11322         case FLASH_5752VENDOR_ST_M45PE10:
11323         case FLASH_5752VENDOR_ST_M45PE20:
11324         case FLASH_5752VENDOR_ST_M45PE40:
11325                 tp->nvram_jedecnum = JEDEC_ST;
11326                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11327                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11328                 tp->nvram_pagesize = 256;
11329                 if (nvcfg1 == FLASH_5752VENDOR_ST_M45PE10)
11330                         tp->nvram_size = (protect ?
11331                                           TG3_NVRAM_SIZE_64KB :
11332                                           TG3_NVRAM_SIZE_128KB);
11333                 else if (nvcfg1 == FLASH_5752VENDOR_ST_M45PE20)
11334                         tp->nvram_size = (protect ?
11335                                           TG3_NVRAM_SIZE_64KB :
11336                                           TG3_NVRAM_SIZE_256KB);
11337                 else
11338                         tp->nvram_size = (protect ?
11339                                           TG3_NVRAM_SIZE_128KB :
11340                                           TG3_NVRAM_SIZE_512KB);
11341                 break;
11342         }
11343 }
11344
11345 static void __devinit tg3_get_5787_nvram_info(struct tg3 *tp)
11346 {
11347         u32 nvcfg1;
11348
11349         nvcfg1 = tr32(NVRAM_CFG1);
11350
11351         switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11352         case FLASH_5787VENDOR_ATMEL_EEPROM_64KHZ:
11353         case FLASH_5787VENDOR_ATMEL_EEPROM_376KHZ:
11354         case FLASH_5787VENDOR_MICRO_EEPROM_64KHZ:
11355         case FLASH_5787VENDOR_MICRO_EEPROM_376KHZ:
11356                 tp->nvram_jedecnum = JEDEC_ATMEL;
11357                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11358                 tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
11359
11360                 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
11361                 tw32(NVRAM_CFG1, nvcfg1);
11362                 break;
11363         case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
11364         case FLASH_5755VENDOR_ATMEL_FLASH_1:
11365         case FLASH_5755VENDOR_ATMEL_FLASH_2:
11366         case FLASH_5755VENDOR_ATMEL_FLASH_3:
11367                 tp->nvram_jedecnum = JEDEC_ATMEL;
11368                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11369                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11370                 tp->nvram_pagesize = 264;
11371                 break;
11372         case FLASH_5752VENDOR_ST_M45PE10:
11373         case FLASH_5752VENDOR_ST_M45PE20:
11374         case FLASH_5752VENDOR_ST_M45PE40:
11375                 tp->nvram_jedecnum = JEDEC_ST;
11376                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11377                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11378                 tp->nvram_pagesize = 256;
11379                 break;
11380         }
11381 }
11382
11383 static void __devinit tg3_get_5761_nvram_info(struct tg3 *tp)
11384 {
11385         u32 nvcfg1, protect = 0;
11386
11387         nvcfg1 = tr32(NVRAM_CFG1);
11388
11389         /* NVRAM protection for TPM */
11390         if (nvcfg1 & (1 << 27)) {
11391                 tp->tg3_flags3 |= TG3_FLG3_PROTECTED_NVRAM;
11392                 protect = 1;
11393         }
11394
11395         nvcfg1 &= NVRAM_CFG1_5752VENDOR_MASK;
11396         switch (nvcfg1) {
11397         case FLASH_5761VENDOR_ATMEL_ADB021D:
11398         case FLASH_5761VENDOR_ATMEL_ADB041D:
11399         case FLASH_5761VENDOR_ATMEL_ADB081D:
11400         case FLASH_5761VENDOR_ATMEL_ADB161D:
11401         case FLASH_5761VENDOR_ATMEL_MDB021D:
11402         case FLASH_5761VENDOR_ATMEL_MDB041D:
11403         case FLASH_5761VENDOR_ATMEL_MDB081D:
11404         case FLASH_5761VENDOR_ATMEL_MDB161D:
11405                 tp->nvram_jedecnum = JEDEC_ATMEL;
11406                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11407                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11408                 tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM_ADDR_TRANS;
11409                 tp->nvram_pagesize = 256;
11410                 break;
11411         case FLASH_5761VENDOR_ST_A_M45PE20:
11412         case FLASH_5761VENDOR_ST_A_M45PE40:
11413         case FLASH_5761VENDOR_ST_A_M45PE80:
11414         case FLASH_5761VENDOR_ST_A_M45PE16:
11415         case FLASH_5761VENDOR_ST_M_M45PE20:
11416         case FLASH_5761VENDOR_ST_M_M45PE40:
11417         case FLASH_5761VENDOR_ST_M_M45PE80:
11418         case FLASH_5761VENDOR_ST_M_M45PE16:
11419                 tp->nvram_jedecnum = JEDEC_ST;
11420                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11421                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11422                 tp->nvram_pagesize = 256;
11423                 break;
11424         }
11425
11426         if (protect) {
11427                 tp->nvram_size = tr32(NVRAM_ADDR_LOCKOUT);
11428         } else {
11429                 switch (nvcfg1) {
11430                 case FLASH_5761VENDOR_ATMEL_ADB161D:
11431                 case FLASH_5761VENDOR_ATMEL_MDB161D:
11432                 case FLASH_5761VENDOR_ST_A_M45PE16:
11433                 case FLASH_5761VENDOR_ST_M_M45PE16:
11434                         tp->nvram_size = TG3_NVRAM_SIZE_2MB;
11435                         break;
11436                 case FLASH_5761VENDOR_ATMEL_ADB081D:
11437                 case FLASH_5761VENDOR_ATMEL_MDB081D:
11438                 case FLASH_5761VENDOR_ST_A_M45PE80:
11439                 case FLASH_5761VENDOR_ST_M_M45PE80:
11440                         tp->nvram_size = TG3_NVRAM_SIZE_1MB;
11441                         break;
11442                 case FLASH_5761VENDOR_ATMEL_ADB041D:
11443                 case FLASH_5761VENDOR_ATMEL_MDB041D:
11444                 case FLASH_5761VENDOR_ST_A_M45PE40:
11445                 case FLASH_5761VENDOR_ST_M_M45PE40:
11446                         tp->nvram_size = TG3_NVRAM_SIZE_512KB;
11447                         break;
11448                 case FLASH_5761VENDOR_ATMEL_ADB021D:
11449                 case FLASH_5761VENDOR_ATMEL_MDB021D:
11450                 case FLASH_5761VENDOR_ST_A_M45PE20:
11451                 case FLASH_5761VENDOR_ST_M_M45PE20:
11452                         tp->nvram_size = TG3_NVRAM_SIZE_256KB;
11453                         break;
11454                 }
11455         }
11456 }
11457
11458 static void __devinit tg3_get_5906_nvram_info(struct tg3 *tp)
11459 {
11460         tp->nvram_jedecnum = JEDEC_ATMEL;
11461         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11462         tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
11463 }
11464
11465 static void __devinit tg3_get_57780_nvram_info(struct tg3 *tp)
11466 {
11467         u32 nvcfg1;
11468
11469         nvcfg1 = tr32(NVRAM_CFG1);
11470
11471         switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11472         case FLASH_5787VENDOR_ATMEL_EEPROM_376KHZ:
11473         case FLASH_5787VENDOR_MICRO_EEPROM_376KHZ:
11474                 tp->nvram_jedecnum = JEDEC_ATMEL;
11475                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11476                 tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
11477
11478                 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
11479                 tw32(NVRAM_CFG1, nvcfg1);
11480                 return;
11481         case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
11482         case FLASH_57780VENDOR_ATMEL_AT45DB011D:
11483         case FLASH_57780VENDOR_ATMEL_AT45DB011B:
11484         case FLASH_57780VENDOR_ATMEL_AT45DB021D:
11485         case FLASH_57780VENDOR_ATMEL_AT45DB021B:
11486         case FLASH_57780VENDOR_ATMEL_AT45DB041D:
11487         case FLASH_57780VENDOR_ATMEL_AT45DB041B:
11488                 tp->nvram_jedecnum = JEDEC_ATMEL;
11489                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11490                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11491
11492                 switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11493                 case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
11494                 case FLASH_57780VENDOR_ATMEL_AT45DB011D:
11495                 case FLASH_57780VENDOR_ATMEL_AT45DB011B:
11496                         tp->nvram_size = TG3_NVRAM_SIZE_128KB;
11497                         break;
11498                 case FLASH_57780VENDOR_ATMEL_AT45DB021D:
11499                 case FLASH_57780VENDOR_ATMEL_AT45DB021B:
11500                         tp->nvram_size = TG3_NVRAM_SIZE_256KB;
11501                         break;
11502                 case FLASH_57780VENDOR_ATMEL_AT45DB041D:
11503                 case FLASH_57780VENDOR_ATMEL_AT45DB041B:
11504                         tp->nvram_size = TG3_NVRAM_SIZE_512KB;
11505                         break;
11506                 }
11507                 break;
11508         case FLASH_5752VENDOR_ST_M45PE10:
11509         case FLASH_5752VENDOR_ST_M45PE20:
11510         case FLASH_5752VENDOR_ST_M45PE40:
11511                 tp->nvram_jedecnum = JEDEC_ST;
11512                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11513                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11514
11515                 switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11516                 case FLASH_5752VENDOR_ST_M45PE10:
11517                         tp->nvram_size = TG3_NVRAM_SIZE_128KB;
11518                         break;
11519                 case FLASH_5752VENDOR_ST_M45PE20:
11520                         tp->nvram_size = TG3_NVRAM_SIZE_256KB;
11521                         break;
11522                 case FLASH_5752VENDOR_ST_M45PE40:
11523                         tp->nvram_size = TG3_NVRAM_SIZE_512KB;
11524                         break;
11525                 }
11526                 break;
11527         default:
11528                 tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM;
11529                 return;
11530         }
11531
11532         tg3_nvram_get_pagesize(tp, nvcfg1);
11533         if (tp->nvram_pagesize != 264 && tp->nvram_pagesize != 528)
11534                 tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM_ADDR_TRANS;
11535 }
11536
11537
11538 static void __devinit tg3_get_5717_nvram_info(struct tg3 *tp)
11539 {
11540         u32 nvcfg1;
11541
11542         nvcfg1 = tr32(NVRAM_CFG1);
11543
11544         switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11545         case FLASH_5717VENDOR_ATMEL_EEPROM:
11546         case FLASH_5717VENDOR_MICRO_EEPROM:
11547                 tp->nvram_jedecnum = JEDEC_ATMEL;
11548                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11549                 tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
11550
11551                 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
11552                 tw32(NVRAM_CFG1, nvcfg1);
11553                 return;
11554         case FLASH_5717VENDOR_ATMEL_MDB011D:
11555         case FLASH_5717VENDOR_ATMEL_ADB011B:
11556         case FLASH_5717VENDOR_ATMEL_ADB011D:
11557         case FLASH_5717VENDOR_ATMEL_MDB021D:
11558         case FLASH_5717VENDOR_ATMEL_ADB021B:
11559         case FLASH_5717VENDOR_ATMEL_ADB021D:
11560         case FLASH_5717VENDOR_ATMEL_45USPT:
11561                 tp->nvram_jedecnum = JEDEC_ATMEL;
11562                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11563                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11564
11565                 switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11566                 case FLASH_5717VENDOR_ATMEL_MDB021D:
11567                 case FLASH_5717VENDOR_ATMEL_ADB021B:
11568                 case FLASH_5717VENDOR_ATMEL_ADB021D:
11569                         tp->nvram_size = TG3_NVRAM_SIZE_256KB;
11570                         break;
11571                 default:
11572                         tp->nvram_size = TG3_NVRAM_SIZE_128KB;
11573                         break;
11574                 }
11575                 break;
11576         case FLASH_5717VENDOR_ST_M_M25PE10:
11577         case FLASH_5717VENDOR_ST_A_M25PE10:
11578         case FLASH_5717VENDOR_ST_M_M45PE10:
11579         case FLASH_5717VENDOR_ST_A_M45PE10:
11580         case FLASH_5717VENDOR_ST_M_M25PE20:
11581         case FLASH_5717VENDOR_ST_A_M25PE20:
11582         case FLASH_5717VENDOR_ST_M_M45PE20:
11583         case FLASH_5717VENDOR_ST_A_M45PE20:
11584         case FLASH_5717VENDOR_ST_25USPT:
11585         case FLASH_5717VENDOR_ST_45USPT:
11586                 tp->nvram_jedecnum = JEDEC_ST;
11587                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11588                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11589
11590                 switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11591                 case FLASH_5717VENDOR_ST_M_M25PE20:
11592                 case FLASH_5717VENDOR_ST_A_M25PE20:
11593                 case FLASH_5717VENDOR_ST_M_M45PE20:
11594                 case FLASH_5717VENDOR_ST_A_M45PE20:
11595                         tp->nvram_size = TG3_NVRAM_SIZE_256KB;
11596                         break;
11597                 default:
11598                         tp->nvram_size = TG3_NVRAM_SIZE_128KB;
11599                         break;
11600                 }
11601                 break;
11602         default:
11603                 tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM;
11604                 return;
11605         }
11606
11607         tg3_nvram_get_pagesize(tp, nvcfg1);
11608         if (tp->nvram_pagesize != 264 && tp->nvram_pagesize != 528)
11609                 tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM_ADDR_TRANS;
11610 }
11611
11612 /* Chips other than 5700/5701 use the NVRAM for fetching info. */
11613 static void __devinit tg3_nvram_init(struct tg3 *tp)
11614 {
11615         tw32_f(GRC_EEPROM_ADDR,
11616              (EEPROM_ADDR_FSM_RESET |
11617               (EEPROM_DEFAULT_CLOCK_PERIOD <<
11618                EEPROM_ADDR_CLKPERD_SHIFT)));
11619
11620         msleep(1);
11621
11622         /* Enable seeprom accesses. */
11623         tw32_f(GRC_LOCAL_CTRL,
11624              tr32(GRC_LOCAL_CTRL) | GRC_LCLCTRL_AUTO_SEEPROM);
11625         udelay(100);
11626
11627         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
11628             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701) {
11629                 tp->tg3_flags |= TG3_FLAG_NVRAM;
11630
11631                 if (tg3_nvram_lock(tp)) {
11632                         netdev_warn(tp->dev,
11633                                     "Cannot get nvram lock, %s failed\n",
11634                                     __func__);
11635                         return;
11636                 }
11637                 tg3_enable_nvram_access(tp);
11638
11639                 tp->nvram_size = 0;
11640
11641                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752)
11642                         tg3_get_5752_nvram_info(tp);
11643                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755)
11644                         tg3_get_5755_nvram_info(tp);
11645                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5787 ||
11646                          GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
11647                          GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
11648                         tg3_get_5787_nvram_info(tp);
11649                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761)
11650                         tg3_get_5761_nvram_info(tp);
11651                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
11652                         tg3_get_5906_nvram_info(tp);
11653                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 ||
11654                          GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
11655                         tg3_get_57780_nvram_info(tp);
11656                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717)
11657                         tg3_get_5717_nvram_info(tp);
11658                 else
11659                         tg3_get_nvram_info(tp);
11660
11661                 if (tp->nvram_size == 0)
11662                         tg3_get_nvram_size(tp);
11663
11664                 tg3_disable_nvram_access(tp);
11665                 tg3_nvram_unlock(tp);
11666
11667         } else {
11668                 tp->tg3_flags &= ~(TG3_FLAG_NVRAM | TG3_FLAG_NVRAM_BUFFERED);
11669
11670                 tg3_get_eeprom_size(tp);
11671         }
11672 }
11673
11674 static int tg3_nvram_write_block_using_eeprom(struct tg3 *tp,
11675                                     u32 offset, u32 len, u8 *buf)
11676 {
11677         int i, j, rc = 0;
11678         u32 val;
11679
11680         for (i = 0; i < len; i += 4) {
11681                 u32 addr;
11682                 __be32 data;
11683
11684                 addr = offset + i;
11685
11686                 memcpy(&data, buf + i, 4);
11687
11688                 /*
11689                  * The SEEPROM interface expects the data to always be opposite
11690                  * the native endian format.  We accomplish this by reversing
11691                  * all the operations that would have been performed on the
11692                  * data from a call to tg3_nvram_read_be32().
11693                  */
11694                 tw32(GRC_EEPROM_DATA, swab32(be32_to_cpu(data)));
11695
11696                 val = tr32(GRC_EEPROM_ADDR);
11697                 tw32(GRC_EEPROM_ADDR, val | EEPROM_ADDR_COMPLETE);
11698
11699                 val &= ~(EEPROM_ADDR_ADDR_MASK | EEPROM_ADDR_DEVID_MASK |
11700                         EEPROM_ADDR_READ);
11701                 tw32(GRC_EEPROM_ADDR, val |
11702                         (0 << EEPROM_ADDR_DEVID_SHIFT) |
11703                         (addr & EEPROM_ADDR_ADDR_MASK) |
11704                         EEPROM_ADDR_START |
11705                         EEPROM_ADDR_WRITE);
11706
11707                 for (j = 0; j < 1000; j++) {
11708                         val = tr32(GRC_EEPROM_ADDR);
11709
11710                         if (val & EEPROM_ADDR_COMPLETE)
11711                                 break;
11712                         msleep(1);
11713                 }
11714                 if (!(val & EEPROM_ADDR_COMPLETE)) {
11715                         rc = -EBUSY;
11716                         break;
11717                 }
11718         }
11719
11720         return rc;
11721 }
11722
11723 /* offset and length are dword aligned */
11724 static int tg3_nvram_write_block_unbuffered(struct tg3 *tp, u32 offset, u32 len,
11725                 u8 *buf)
11726 {
11727         int ret = 0;
11728         u32 pagesize = tp->nvram_pagesize;
11729         u32 pagemask = pagesize - 1;
11730         u32 nvram_cmd;
11731         u8 *tmp;
11732
11733         tmp = kmalloc(pagesize, GFP_KERNEL);
11734         if (tmp == NULL)
11735                 return -ENOMEM;
11736
11737         while (len) {
11738                 int j;
11739                 u32 phy_addr, page_off, size;
11740
11741                 phy_addr = offset & ~pagemask;
11742
11743                 for (j = 0; j < pagesize; j += 4) {
11744                         ret = tg3_nvram_read_be32(tp, phy_addr + j,
11745                                                   (__be32 *) (tmp + j));
11746                         if (ret)
11747                                 break;
11748                 }
11749                 if (ret)
11750                         break;
11751
11752                 page_off = offset & pagemask;
11753                 size = pagesize;
11754                 if (len < size)
11755                         size = len;
11756
11757                 len -= size;
11758
11759                 memcpy(tmp + page_off, buf, size);
11760
11761                 offset = offset + (pagesize - page_off);
11762
11763                 tg3_enable_nvram_access(tp);
11764
11765                 /*
11766                  * Before we can erase the flash page, we need
11767                  * to issue a special "write enable" command.
11768                  */
11769                 nvram_cmd = NVRAM_CMD_WREN | NVRAM_CMD_GO | NVRAM_CMD_DONE;
11770
11771                 if (tg3_nvram_exec_cmd(tp, nvram_cmd))
11772                         break;
11773
11774                 /* Erase the target page */
11775                 tw32(NVRAM_ADDR, phy_addr);
11776
11777                 nvram_cmd = NVRAM_CMD_GO | NVRAM_CMD_DONE | NVRAM_CMD_WR |
11778                         NVRAM_CMD_FIRST | NVRAM_CMD_LAST | NVRAM_CMD_ERASE;
11779
11780                 if (tg3_nvram_exec_cmd(tp, nvram_cmd))
11781                         break;
11782
11783                 /* Issue another write enable to start the write. */
11784                 nvram_cmd = NVRAM_CMD_WREN | NVRAM_CMD_GO | NVRAM_CMD_DONE;
11785
11786                 if (tg3_nvram_exec_cmd(tp, nvram_cmd))
11787                         break;
11788
11789                 for (j = 0; j < pagesize; j += 4) {
11790                         __be32 data;
11791
11792                         data = *((__be32 *) (tmp + j));
11793
11794                         tw32(NVRAM_WRDATA, be32_to_cpu(data));
11795
11796                         tw32(NVRAM_ADDR, phy_addr + j);
11797
11798                         nvram_cmd = NVRAM_CMD_GO | NVRAM_CMD_DONE |
11799                                 NVRAM_CMD_WR;
11800
11801                         if (j == 0)
11802                                 nvram_cmd |= NVRAM_CMD_FIRST;
11803                         else if (j == (pagesize - 4))
11804                                 nvram_cmd |= NVRAM_CMD_LAST;
11805
11806                         if ((ret = tg3_nvram_exec_cmd(tp, nvram_cmd)))
11807                                 break;
11808                 }
11809                 if (ret)
11810                         break;
11811         }
11812
11813         nvram_cmd = NVRAM_CMD_WRDI | NVRAM_CMD_GO | NVRAM_CMD_DONE;
11814         tg3_nvram_exec_cmd(tp, nvram_cmd);
11815
11816         kfree(tmp);
11817
11818         return ret;
11819 }
11820
11821 /* offset and length are dword aligned */
11822 static int tg3_nvram_write_block_buffered(struct tg3 *tp, u32 offset, u32 len,
11823                 u8 *buf)
11824 {
11825         int i, ret = 0;
11826
11827         for (i = 0; i < len; i += 4, offset += 4) {
11828                 u32 page_off, phy_addr, nvram_cmd;
11829                 __be32 data;
11830
11831                 memcpy(&data, buf + i, 4);
11832                 tw32(NVRAM_WRDATA, be32_to_cpu(data));
11833
11834                 page_off = offset % tp->nvram_pagesize;
11835
11836                 phy_addr = tg3_nvram_phys_addr(tp, offset);
11837
11838                 tw32(NVRAM_ADDR, phy_addr);
11839
11840                 nvram_cmd = NVRAM_CMD_GO | NVRAM_CMD_DONE | NVRAM_CMD_WR;
11841
11842                 if (page_off == 0 || i == 0)
11843                         nvram_cmd |= NVRAM_CMD_FIRST;
11844                 if (page_off == (tp->nvram_pagesize - 4))
11845                         nvram_cmd |= NVRAM_CMD_LAST;
11846
11847                 if (i == (len - 4))
11848                         nvram_cmd |= NVRAM_CMD_LAST;
11849
11850                 if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5752 &&
11851                     !(tp->tg3_flags3 & TG3_FLG3_5755_PLUS) &&
11852                     (tp->nvram_jedecnum == JEDEC_ST) &&
11853                     (nvram_cmd & NVRAM_CMD_FIRST)) {
11854
11855                         if ((ret = tg3_nvram_exec_cmd(tp,
11856                                 NVRAM_CMD_WREN | NVRAM_CMD_GO |
11857                                 NVRAM_CMD_DONE)))
11858
11859                                 break;
11860                 }
11861                 if (!(tp->tg3_flags2 & TG3_FLG2_FLASH)) {
11862                         /* We always do complete word writes to eeprom. */
11863                         nvram_cmd |= (NVRAM_CMD_FIRST | NVRAM_CMD_LAST);
11864                 }
11865
11866                 if ((ret = tg3_nvram_exec_cmd(tp, nvram_cmd)))
11867                         break;
11868         }
11869         return ret;
11870 }
11871
11872 /* offset and length are dword aligned */
11873 static int tg3_nvram_write_block(struct tg3 *tp, u32 offset, u32 len, u8 *buf)
11874 {
11875         int ret;
11876
11877         if (tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT) {
11878                 tw32_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl &
11879                        ~GRC_LCLCTRL_GPIO_OUTPUT1);
11880                 udelay(40);
11881         }
11882
11883         if (!(tp->tg3_flags & TG3_FLAG_NVRAM)) {
11884                 ret = tg3_nvram_write_block_using_eeprom(tp, offset, len, buf);
11885         } else {
11886                 u32 grc_mode;
11887
11888                 ret = tg3_nvram_lock(tp);
11889                 if (ret)
11890                         return ret;
11891
11892                 tg3_enable_nvram_access(tp);
11893                 if ((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
11894                     !(tp->tg3_flags3 & TG3_FLG3_PROTECTED_NVRAM))
11895                         tw32(NVRAM_WRITE1, 0x406);
11896
11897                 grc_mode = tr32(GRC_MODE);
11898                 tw32(GRC_MODE, grc_mode | GRC_MODE_NVRAM_WR_ENABLE);
11899
11900                 if ((tp->tg3_flags & TG3_FLAG_NVRAM_BUFFERED) ||
11901                         !(tp->tg3_flags2 & TG3_FLG2_FLASH)) {
11902
11903                         ret = tg3_nvram_write_block_buffered(tp, offset, len,
11904                                 buf);
11905                 } else {
11906                         ret = tg3_nvram_write_block_unbuffered(tp, offset, len,
11907                                 buf);
11908                 }
11909
11910                 grc_mode = tr32(GRC_MODE);
11911                 tw32(GRC_MODE, grc_mode & ~GRC_MODE_NVRAM_WR_ENABLE);
11912
11913                 tg3_disable_nvram_access(tp);
11914                 tg3_nvram_unlock(tp);
11915         }
11916
11917         if (tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT) {
11918                 tw32_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl);
11919                 udelay(40);
11920         }
11921
11922         return ret;
11923 }
11924
11925 struct subsys_tbl_ent {
11926         u16 subsys_vendor, subsys_devid;
11927         u32 phy_id;
11928 };
11929
11930 static struct subsys_tbl_ent subsys_id_to_phy_id[] __devinitdata = {
11931         /* Broadcom boards. */
11932         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11933           TG3PCI_SUBDEVICE_ID_BROADCOM_95700A6, TG3_PHY_ID_BCM5401 },
11934         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11935           TG3PCI_SUBDEVICE_ID_BROADCOM_95701A5, TG3_PHY_ID_BCM5701 },
11936         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11937           TG3PCI_SUBDEVICE_ID_BROADCOM_95700T6, TG3_PHY_ID_BCM8002 },
11938         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11939           TG3PCI_SUBDEVICE_ID_BROADCOM_95700A9, 0 },
11940         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11941           TG3PCI_SUBDEVICE_ID_BROADCOM_95701T1, TG3_PHY_ID_BCM5701 },
11942         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11943           TG3PCI_SUBDEVICE_ID_BROADCOM_95701T8, TG3_PHY_ID_BCM5701 },
11944         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11945           TG3PCI_SUBDEVICE_ID_BROADCOM_95701A7, 0 },
11946         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11947           TG3PCI_SUBDEVICE_ID_BROADCOM_95701A10, TG3_PHY_ID_BCM5701 },
11948         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11949           TG3PCI_SUBDEVICE_ID_BROADCOM_95701A12, TG3_PHY_ID_BCM5701 },
11950         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11951           TG3PCI_SUBDEVICE_ID_BROADCOM_95703AX1, TG3_PHY_ID_BCM5703 },
11952         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11953           TG3PCI_SUBDEVICE_ID_BROADCOM_95703AX2, TG3_PHY_ID_BCM5703 },
11954
11955         /* 3com boards. */
11956         { TG3PCI_SUBVENDOR_ID_3COM,
11957           TG3PCI_SUBDEVICE_ID_3COM_3C996T, TG3_PHY_ID_BCM5401 },
11958         { TG3PCI_SUBVENDOR_ID_3COM,
11959           TG3PCI_SUBDEVICE_ID_3COM_3C996BT, TG3_PHY_ID_BCM5701 },
11960         { TG3PCI_SUBVENDOR_ID_3COM,
11961           TG3PCI_SUBDEVICE_ID_3COM_3C996SX, 0 },
11962         { TG3PCI_SUBVENDOR_ID_3COM,
11963           TG3PCI_SUBDEVICE_ID_3COM_3C1000T, TG3_PHY_ID_BCM5701 },
11964         { TG3PCI_SUBVENDOR_ID_3COM,
11965           TG3PCI_SUBDEVICE_ID_3COM_3C940BR01, TG3_PHY_ID_BCM5701 },
11966
11967         /* DELL boards. */
11968         { TG3PCI_SUBVENDOR_ID_DELL,
11969           TG3PCI_SUBDEVICE_ID_DELL_VIPER, TG3_PHY_ID_BCM5401 },
11970         { TG3PCI_SUBVENDOR_ID_DELL,
11971           TG3PCI_SUBDEVICE_ID_DELL_JAGUAR, TG3_PHY_ID_BCM5401 },
11972         { TG3PCI_SUBVENDOR_ID_DELL,
11973           TG3PCI_SUBDEVICE_ID_DELL_MERLOT, TG3_PHY_ID_BCM5411 },
11974         { TG3PCI_SUBVENDOR_ID_DELL,
11975           TG3PCI_SUBDEVICE_ID_DELL_SLIM_MERLOT, TG3_PHY_ID_BCM5411 },
11976
11977         /* Compaq boards. */
11978         { TG3PCI_SUBVENDOR_ID_COMPAQ,
11979           TG3PCI_SUBDEVICE_ID_COMPAQ_BANSHEE, TG3_PHY_ID_BCM5701 },
11980         { TG3PCI_SUBVENDOR_ID_COMPAQ,
11981           TG3PCI_SUBDEVICE_ID_COMPAQ_BANSHEE_2, TG3_PHY_ID_BCM5701 },
11982         { TG3PCI_SUBVENDOR_ID_COMPAQ,
11983           TG3PCI_SUBDEVICE_ID_COMPAQ_CHANGELING, 0 },
11984         { TG3PCI_SUBVENDOR_ID_COMPAQ,
11985           TG3PCI_SUBDEVICE_ID_COMPAQ_NC7780, TG3_PHY_ID_BCM5701 },
11986         { TG3PCI_SUBVENDOR_ID_COMPAQ,
11987           TG3PCI_SUBDEVICE_ID_COMPAQ_NC7780_2, TG3_PHY_ID_BCM5701 },
11988
11989         /* IBM boards. */
11990         { TG3PCI_SUBVENDOR_ID_IBM,
11991           TG3PCI_SUBDEVICE_ID_IBM_5703SAX2, 0 }
11992 };
11993
11994 static struct subsys_tbl_ent * __devinit tg3_lookup_by_subsys(struct tg3 *tp)
11995 {
11996         int i;
11997
11998         for (i = 0; i < ARRAY_SIZE(subsys_id_to_phy_id); i++) {
11999                 if ((subsys_id_to_phy_id[i].subsys_vendor ==
12000                      tp->pdev->subsystem_vendor) &&
12001                     (subsys_id_to_phy_id[i].subsys_devid ==
12002                      tp->pdev->subsystem_device))
12003                         return &subsys_id_to_phy_id[i];
12004         }
12005         return NULL;
12006 }
12007
12008 static void __devinit tg3_get_eeprom_hw_cfg(struct tg3 *tp)
12009 {
12010         u32 val;
12011         u16 pmcsr;
12012
12013         /* On some early chips the SRAM cannot be accessed in D3hot state,
12014          * so need make sure we're in D0.
12015          */
12016         pci_read_config_word(tp->pdev, tp->pm_cap + PCI_PM_CTRL, &pmcsr);
12017         pmcsr &= ~PCI_PM_CTRL_STATE_MASK;
12018         pci_write_config_word(tp->pdev, tp->pm_cap + PCI_PM_CTRL, pmcsr);
12019         msleep(1);
12020
12021         /* Make sure register accesses (indirect or otherwise)
12022          * will function correctly.
12023          */
12024         pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
12025                                tp->misc_host_ctrl);
12026
12027         /* The memory arbiter has to be enabled in order for SRAM accesses
12028          * to succeed.  Normally on powerup the tg3 chip firmware will make
12029          * sure it is enabled, but other entities such as system netboot
12030          * code might disable it.
12031          */
12032         val = tr32(MEMARB_MODE);
12033         tw32(MEMARB_MODE, val | MEMARB_MODE_ENABLE);
12034
12035         tp->phy_id = TG3_PHY_ID_INVALID;
12036         tp->led_ctrl = LED_CTRL_MODE_PHY_1;
12037
12038         /* Assume an onboard device and WOL capable by default.  */
12039         tp->tg3_flags |= TG3_FLAG_EEPROM_WRITE_PROT | TG3_FLAG_WOL_CAP;
12040
12041         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
12042                 if (!(tr32(PCIE_TRANSACTION_CFG) & PCIE_TRANS_CFG_LOM)) {
12043                         tp->tg3_flags &= ~TG3_FLAG_EEPROM_WRITE_PROT;
12044                         tp->tg3_flags2 |= TG3_FLG2_IS_NIC;
12045                 }
12046                 val = tr32(VCPU_CFGSHDW);
12047                 if (val & VCPU_CFGSHDW_ASPM_DBNC)
12048                         tp->tg3_flags |= TG3_FLAG_ASPM_WORKAROUND;
12049                 if ((val & VCPU_CFGSHDW_WOL_ENABLE) &&
12050                     (val & VCPU_CFGSHDW_WOL_MAGPKT))
12051                         tp->tg3_flags |= TG3_FLAG_WOL_ENABLE;
12052                 goto done;
12053         }
12054
12055         tg3_read_mem(tp, NIC_SRAM_DATA_SIG, &val);
12056         if (val == NIC_SRAM_DATA_SIG_MAGIC) {
12057                 u32 nic_cfg, led_cfg;
12058                 u32 nic_phy_id, ver, cfg2 = 0, cfg4 = 0, eeprom_phy_id;
12059                 int eeprom_phy_serdes = 0;
12060
12061                 tg3_read_mem(tp, NIC_SRAM_DATA_CFG, &nic_cfg);
12062                 tp->nic_sram_data_cfg = nic_cfg;
12063
12064                 tg3_read_mem(tp, NIC_SRAM_DATA_VER, &ver);
12065                 ver >>= NIC_SRAM_DATA_VER_SHIFT;
12066                 if ((GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700) &&
12067                     (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701) &&
12068                     (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5703) &&
12069                     (ver > 0) && (ver < 0x100))
12070                         tg3_read_mem(tp, NIC_SRAM_DATA_CFG_2, &cfg2);
12071
12072                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
12073                         tg3_read_mem(tp, NIC_SRAM_DATA_CFG_4, &cfg4);
12074
12075                 if ((nic_cfg & NIC_SRAM_DATA_CFG_PHY_TYPE_MASK) ==
12076                     NIC_SRAM_DATA_CFG_PHY_TYPE_FIBER)
12077                         eeprom_phy_serdes = 1;
12078
12079                 tg3_read_mem(tp, NIC_SRAM_DATA_PHY_ID, &nic_phy_id);
12080                 if (nic_phy_id != 0) {
12081                         u32 id1 = nic_phy_id & NIC_SRAM_DATA_PHY_ID1_MASK;
12082                         u32 id2 = nic_phy_id & NIC_SRAM_DATA_PHY_ID2_MASK;
12083
12084                         eeprom_phy_id  = (id1 >> 16) << 10;
12085                         eeprom_phy_id |= (id2 & 0xfc00) << 16;
12086                         eeprom_phy_id |= (id2 & 0x03ff) <<  0;
12087                 } else
12088                         eeprom_phy_id = 0;
12089
12090                 tp->phy_id = eeprom_phy_id;
12091                 if (eeprom_phy_serdes) {
12092                         if ((tp->tg3_flags2 & TG3_FLG2_5780_CLASS) ||
12093                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717)
12094                                 tp->tg3_flags2 |= TG3_FLG2_MII_SERDES;
12095                         else
12096                                 tp->tg3_flags2 |= TG3_FLG2_PHY_SERDES;
12097                 }
12098
12099                 if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS)
12100                         led_cfg = cfg2 & (NIC_SRAM_DATA_CFG_LED_MODE_MASK |
12101                                     SHASTA_EXT_LED_MODE_MASK);
12102                 else
12103                         led_cfg = nic_cfg & NIC_SRAM_DATA_CFG_LED_MODE_MASK;
12104
12105                 switch (led_cfg) {
12106                 default:
12107                 case NIC_SRAM_DATA_CFG_LED_MODE_PHY_1:
12108                         tp->led_ctrl = LED_CTRL_MODE_PHY_1;
12109                         break;
12110
12111                 case NIC_SRAM_DATA_CFG_LED_MODE_PHY_2:
12112                         tp->led_ctrl = LED_CTRL_MODE_PHY_2;
12113                         break;
12114
12115                 case NIC_SRAM_DATA_CFG_LED_MODE_MAC:
12116                         tp->led_ctrl = LED_CTRL_MODE_MAC;
12117
12118                         /* Default to PHY_1_MODE if 0 (MAC_MODE) is
12119                          * read on some older 5700/5701 bootcode.
12120                          */
12121                         if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
12122                             ASIC_REV_5700 ||
12123                             GET_ASIC_REV(tp->pci_chip_rev_id) ==
12124                             ASIC_REV_5701)
12125                                 tp->led_ctrl = LED_CTRL_MODE_PHY_1;
12126
12127                         break;
12128
12129                 case SHASTA_EXT_LED_SHARED:
12130                         tp->led_ctrl = LED_CTRL_MODE_SHARED;
12131                         if (tp->pci_chip_rev_id != CHIPREV_ID_5750_A0 &&
12132                             tp->pci_chip_rev_id != CHIPREV_ID_5750_A1)
12133                                 tp->led_ctrl |= (LED_CTRL_MODE_PHY_1 |
12134                                                  LED_CTRL_MODE_PHY_2);
12135                         break;
12136
12137                 case SHASTA_EXT_LED_MAC:
12138                         tp->led_ctrl = LED_CTRL_MODE_SHASTA_MAC;
12139                         break;
12140
12141                 case SHASTA_EXT_LED_COMBO:
12142                         tp->led_ctrl = LED_CTRL_MODE_COMBO;
12143                         if (tp->pci_chip_rev_id != CHIPREV_ID_5750_A0)
12144                                 tp->led_ctrl |= (LED_CTRL_MODE_PHY_1 |
12145                                                  LED_CTRL_MODE_PHY_2);
12146                         break;
12147
12148                 }
12149
12150                 if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
12151                      GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) &&
12152                     tp->pdev->subsystem_vendor == PCI_VENDOR_ID_DELL)
12153                         tp->led_ctrl = LED_CTRL_MODE_PHY_2;
12154
12155                 if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX)
12156                         tp->led_ctrl = LED_CTRL_MODE_PHY_1;
12157
12158                 if (nic_cfg & NIC_SRAM_DATA_CFG_EEPROM_WP) {
12159                         tp->tg3_flags |= TG3_FLAG_EEPROM_WRITE_PROT;
12160                         if ((tp->pdev->subsystem_vendor ==
12161                              PCI_VENDOR_ID_ARIMA) &&
12162                             (tp->pdev->subsystem_device == 0x205a ||
12163                              tp->pdev->subsystem_device == 0x2063))
12164                                 tp->tg3_flags &= ~TG3_FLAG_EEPROM_WRITE_PROT;
12165                 } else {
12166                         tp->tg3_flags &= ~TG3_FLAG_EEPROM_WRITE_PROT;
12167                         tp->tg3_flags2 |= TG3_FLG2_IS_NIC;
12168                 }
12169
12170                 if (nic_cfg & NIC_SRAM_DATA_CFG_ASF_ENABLE) {
12171                         tp->tg3_flags |= TG3_FLAG_ENABLE_ASF;
12172                         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS)
12173                                 tp->tg3_flags2 |= TG3_FLG2_ASF_NEW_HANDSHAKE;
12174                 }
12175
12176                 if ((nic_cfg & NIC_SRAM_DATA_CFG_APE_ENABLE) &&
12177                         (tp->tg3_flags2 & TG3_FLG2_5750_PLUS))
12178                         tp->tg3_flags3 |= TG3_FLG3_ENABLE_APE;
12179
12180                 if (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES &&
12181                     !(nic_cfg & NIC_SRAM_DATA_CFG_FIBER_WOL))
12182                         tp->tg3_flags &= ~TG3_FLAG_WOL_CAP;
12183
12184                 if ((tp->tg3_flags & TG3_FLAG_WOL_CAP) &&
12185                     (nic_cfg & NIC_SRAM_DATA_CFG_WOL_ENABLE))
12186                         tp->tg3_flags |= TG3_FLAG_WOL_ENABLE;
12187
12188                 if (cfg2 & (1 << 17))
12189                         tp->tg3_flags2 |= TG3_FLG2_CAPACITIVE_COUPLING;
12190
12191                 /* serdes signal pre-emphasis in register 0x590 set by */
12192                 /* bootcode if bit 18 is set */
12193                 if (cfg2 & (1 << 18))
12194                         tp->tg3_flags2 |= TG3_FLG2_SERDES_PREEMPHASIS;
12195
12196                 if (((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
12197                       GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX)) &&
12198                     (cfg2 & NIC_SRAM_DATA_CFG_2_APD_EN))
12199                         tp->tg3_flags3 |= TG3_FLG3_PHY_ENABLE_APD;
12200
12201                 if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
12202                         u32 cfg3;
12203
12204                         tg3_read_mem(tp, NIC_SRAM_DATA_CFG_3, &cfg3);
12205                         if (cfg3 & NIC_SRAM_ASPM_DEBOUNCE)
12206                                 tp->tg3_flags |= TG3_FLAG_ASPM_WORKAROUND;
12207                 }
12208
12209                 if (cfg4 & NIC_SRAM_RGMII_INBAND_DISABLE)
12210                         tp->tg3_flags3 |= TG3_FLG3_RGMII_INBAND_DISABLE;
12211                 if (cfg4 & NIC_SRAM_RGMII_EXT_IBND_RX_EN)
12212                         tp->tg3_flags3 |= TG3_FLG3_RGMII_EXT_IBND_RX_EN;
12213                 if (cfg4 & NIC_SRAM_RGMII_EXT_IBND_TX_EN)
12214                         tp->tg3_flags3 |= TG3_FLG3_RGMII_EXT_IBND_TX_EN;
12215         }
12216 done:
12217         device_init_wakeup(&tp->pdev->dev, tp->tg3_flags & TG3_FLAG_WOL_CAP);
12218         device_set_wakeup_enable(&tp->pdev->dev,
12219                                  tp->tg3_flags & TG3_FLAG_WOL_ENABLE);
12220 }
12221
12222 static int __devinit tg3_issue_otp_command(struct tg3 *tp, u32 cmd)
12223 {
12224         int i;
12225         u32 val;
12226
12227         tw32(OTP_CTRL, cmd | OTP_CTRL_OTP_CMD_START);
12228         tw32(OTP_CTRL, cmd);
12229
12230         /* Wait for up to 1 ms for command to execute. */
12231         for (i = 0; i < 100; i++) {
12232                 val = tr32(OTP_STATUS);
12233                 if (val & OTP_STATUS_CMD_DONE)
12234                         break;
12235                 udelay(10);
12236         }
12237
12238         return (val & OTP_STATUS_CMD_DONE) ? 0 : -EBUSY;
12239 }
12240
12241 /* Read the gphy configuration from the OTP region of the chip.  The gphy
12242  * configuration is a 32-bit value that straddles the alignment boundary.
12243  * We do two 32-bit reads and then shift and merge the results.
12244  */
12245 static u32 __devinit tg3_read_otp_phycfg(struct tg3 *tp)
12246 {
12247         u32 bhalf_otp, thalf_otp;
12248
12249         tw32(OTP_MODE, OTP_MODE_OTP_THRU_GRC);
12250
12251         if (tg3_issue_otp_command(tp, OTP_CTRL_OTP_CMD_INIT))
12252                 return 0;
12253
12254         tw32(OTP_ADDRESS, OTP_ADDRESS_MAGIC1);
12255
12256         if (tg3_issue_otp_command(tp, OTP_CTRL_OTP_CMD_READ))
12257                 return 0;
12258
12259         thalf_otp = tr32(OTP_READ_DATA);
12260
12261         tw32(OTP_ADDRESS, OTP_ADDRESS_MAGIC2);
12262
12263         if (tg3_issue_otp_command(tp, OTP_CTRL_OTP_CMD_READ))
12264                 return 0;
12265
12266         bhalf_otp = tr32(OTP_READ_DATA);
12267
12268         return ((thalf_otp & 0x0000ffff) << 16) | (bhalf_otp >> 16);
12269 }
12270
12271 static int __devinit tg3_phy_probe(struct tg3 *tp)
12272 {
12273         u32 hw_phy_id_1, hw_phy_id_2;
12274         u32 hw_phy_id, hw_phy_id_masked;
12275         int err;
12276
12277         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB)
12278                 return tg3_phy_init(tp);
12279
12280         /* Reading the PHY ID register can conflict with ASF
12281          * firmware access to the PHY hardware.
12282          */
12283         err = 0;
12284         if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) ||
12285             (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)) {
12286                 hw_phy_id = hw_phy_id_masked = TG3_PHY_ID_INVALID;
12287         } else {
12288                 /* Now read the physical PHY_ID from the chip and verify
12289                  * that it is sane.  If it doesn't look good, we fall back
12290                  * to either the hard-coded table based PHY_ID and failing
12291                  * that the value found in the eeprom area.
12292                  */
12293                 err |= tg3_readphy(tp, MII_PHYSID1, &hw_phy_id_1);
12294                 err |= tg3_readphy(tp, MII_PHYSID2, &hw_phy_id_2);
12295
12296                 hw_phy_id  = (hw_phy_id_1 & 0xffff) << 10;
12297                 hw_phy_id |= (hw_phy_id_2 & 0xfc00) << 16;
12298                 hw_phy_id |= (hw_phy_id_2 & 0x03ff) <<  0;
12299
12300                 hw_phy_id_masked = hw_phy_id & TG3_PHY_ID_MASK;
12301         }
12302
12303         if (!err && TG3_KNOWN_PHY_ID(hw_phy_id_masked)) {
12304                 tp->phy_id = hw_phy_id;
12305                 if (hw_phy_id_masked == TG3_PHY_ID_BCM8002)
12306                         tp->tg3_flags2 |= TG3_FLG2_PHY_SERDES;
12307                 else
12308                         tp->tg3_flags2 &= ~TG3_FLG2_PHY_SERDES;
12309         } else {
12310                 if (tp->phy_id != TG3_PHY_ID_INVALID) {
12311                         /* Do nothing, phy ID already set up in
12312                          * tg3_get_eeprom_hw_cfg().
12313                          */
12314                 } else {
12315                         struct subsys_tbl_ent *p;
12316
12317                         /* No eeprom signature?  Try the hardcoded
12318                          * subsys device table.
12319                          */
12320                         p = tg3_lookup_by_subsys(tp);
12321                         if (!p)
12322                                 return -ENODEV;
12323
12324                         tp->phy_id = p->phy_id;
12325                         if (!tp->phy_id ||
12326                             tp->phy_id == TG3_PHY_ID_BCM8002)
12327                                 tp->tg3_flags2 |= TG3_FLG2_PHY_SERDES;
12328                 }
12329         }
12330
12331         if (!(tp->tg3_flags2 & TG3_FLG2_ANY_SERDES) &&
12332             !(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) &&
12333             !(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)) {
12334                 u32 bmsr, adv_reg, tg3_ctrl, mask;
12335
12336                 tg3_readphy(tp, MII_BMSR, &bmsr);
12337                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
12338                     (bmsr & BMSR_LSTATUS))
12339                         goto skip_phy_reset;
12340
12341                 err = tg3_phy_reset(tp);
12342                 if (err)
12343                         return err;
12344
12345                 adv_reg = (ADVERTISE_10HALF | ADVERTISE_10FULL |
12346                            ADVERTISE_100HALF | ADVERTISE_100FULL |
12347                            ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
12348                 tg3_ctrl = 0;
12349                 if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY)) {
12350                         tg3_ctrl = (MII_TG3_CTRL_ADV_1000_HALF |
12351                                     MII_TG3_CTRL_ADV_1000_FULL);
12352                         if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
12353                             tp->pci_chip_rev_id == CHIPREV_ID_5701_B0)
12354                                 tg3_ctrl |= (MII_TG3_CTRL_AS_MASTER |
12355                                              MII_TG3_CTRL_ENABLE_AS_MASTER);
12356                 }
12357
12358                 mask = (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full |
12359                         ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full |
12360                         ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full);
12361                 if (!tg3_copper_is_advertising_all(tp, mask)) {
12362                         tg3_writephy(tp, MII_ADVERTISE, adv_reg);
12363
12364                         if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY))
12365                                 tg3_writephy(tp, MII_TG3_CTRL, tg3_ctrl);
12366
12367                         tg3_writephy(tp, MII_BMCR,
12368                                      BMCR_ANENABLE | BMCR_ANRESTART);
12369                 }
12370                 tg3_phy_set_wirespeed(tp);
12371
12372                 tg3_writephy(tp, MII_ADVERTISE, adv_reg);
12373                 if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY))
12374                         tg3_writephy(tp, MII_TG3_CTRL, tg3_ctrl);
12375         }
12376
12377 skip_phy_reset:
12378         if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5401) {
12379                 err = tg3_init_5401phy_dsp(tp);
12380                 if (err)
12381                         return err;
12382
12383                 err = tg3_init_5401phy_dsp(tp);
12384         }
12385
12386         if (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES)
12387                 tp->link_config.advertising =
12388                         (ADVERTISED_1000baseT_Half |
12389                          ADVERTISED_1000baseT_Full |
12390                          ADVERTISED_Autoneg |
12391                          ADVERTISED_FIBRE);
12392         if (tp->tg3_flags & TG3_FLAG_10_100_ONLY)
12393                 tp->link_config.advertising &=
12394                         ~(ADVERTISED_1000baseT_Half |
12395                           ADVERTISED_1000baseT_Full);
12396
12397         return err;
12398 }
12399
12400 static void __devinit tg3_read_vpd(struct tg3 *tp)
12401 {
12402         u8 vpd_data[TG3_NVM_VPD_LEN];
12403         unsigned int block_end, rosize, len;
12404         int j, i = 0;
12405         u32 magic;
12406
12407         if ((tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) ||
12408             tg3_nvram_read(tp, 0x0, &magic))
12409                 goto out_not_found;
12410
12411         if (magic == TG3_EEPROM_MAGIC) {
12412                 for (i = 0; i < TG3_NVM_VPD_LEN; i += 4) {
12413                         u32 tmp;
12414
12415                         /* The data is in little-endian format in NVRAM.
12416                          * Use the big-endian read routines to preserve
12417                          * the byte order as it exists in NVRAM.
12418                          */
12419                         if (tg3_nvram_read_be32(tp, TG3_NVM_VPD_OFF + i, &tmp))
12420                                 goto out_not_found;
12421
12422                         memcpy(&vpd_data[i], &tmp, sizeof(tmp));
12423                 }
12424         } else {
12425                 ssize_t cnt;
12426                 unsigned int pos = 0;
12427
12428                 for (; pos < TG3_NVM_VPD_LEN && i < 3; i++, pos += cnt) {
12429                         cnt = pci_read_vpd(tp->pdev, pos,
12430                                            TG3_NVM_VPD_LEN - pos,
12431                                            &vpd_data[pos]);
12432                         if (cnt == -ETIMEDOUT || -EINTR)
12433                                 cnt = 0;
12434                         else if (cnt < 0)
12435                                 goto out_not_found;
12436                 }
12437                 if (pos != TG3_NVM_VPD_LEN)
12438                         goto out_not_found;
12439         }
12440
12441         i = pci_vpd_find_tag(vpd_data, 0, TG3_NVM_VPD_LEN,
12442                              PCI_VPD_LRDT_RO_DATA);
12443         if (i < 0)
12444                 goto out_not_found;
12445
12446         rosize = pci_vpd_lrdt_size(&vpd_data[i]);
12447         block_end = i + PCI_VPD_LRDT_TAG_SIZE + rosize;
12448         i += PCI_VPD_LRDT_TAG_SIZE;
12449
12450         if (block_end > TG3_NVM_VPD_LEN)
12451                 goto out_not_found;
12452
12453         j = pci_vpd_find_info_keyword(vpd_data, i, rosize,
12454                                       PCI_VPD_RO_KEYWORD_MFR_ID);
12455         if (j > 0) {
12456                 len = pci_vpd_info_field_size(&vpd_data[j]);
12457
12458                 j += PCI_VPD_INFO_FLD_HDR_SIZE;
12459                 if (j + len > block_end || len != 4 ||
12460                     memcmp(&vpd_data[j], "1028", 4))
12461                         goto partno;
12462
12463                 j = pci_vpd_find_info_keyword(vpd_data, i, rosize,
12464                                               PCI_VPD_RO_KEYWORD_VENDOR0);
12465                 if (j < 0)
12466                         goto partno;
12467
12468                 len = pci_vpd_info_field_size(&vpd_data[j]);
12469
12470                 j += PCI_VPD_INFO_FLD_HDR_SIZE;
12471                 if (j + len > block_end)
12472                         goto partno;
12473
12474                 memcpy(tp->fw_ver, &vpd_data[j], len);
12475                 strncat(tp->fw_ver, " bc ", TG3_NVM_VPD_LEN - len - 1);
12476         }
12477
12478 partno:
12479         i = pci_vpd_find_info_keyword(vpd_data, i, rosize,
12480                                       PCI_VPD_RO_KEYWORD_PARTNO);
12481         if (i < 0)
12482                 goto out_not_found;
12483
12484         len = pci_vpd_info_field_size(&vpd_data[i]);
12485
12486         i += PCI_VPD_INFO_FLD_HDR_SIZE;
12487         if (len > TG3_BPN_SIZE ||
12488             (len + i) > TG3_NVM_VPD_LEN)
12489                 goto out_not_found;
12490
12491         memcpy(tp->board_part_number, &vpd_data[i], len);
12492
12493         return;
12494
12495 out_not_found:
12496         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
12497                 strcpy(tp->board_part_number, "BCM95906");
12498         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 &&
12499                  tp->pdev->device == TG3PCI_DEVICE_TIGON3_57780)
12500                 strcpy(tp->board_part_number, "BCM57780");
12501         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 &&
12502                  tp->pdev->device == TG3PCI_DEVICE_TIGON3_57760)
12503                 strcpy(tp->board_part_number, "BCM57760");
12504         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 &&
12505                  tp->pdev->device == TG3PCI_DEVICE_TIGON3_57790)
12506                 strcpy(tp->board_part_number, "BCM57790");
12507         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 &&
12508                  tp->pdev->device == TG3PCI_DEVICE_TIGON3_57788)
12509                 strcpy(tp->board_part_number, "BCM57788");
12510         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765 &&
12511                  tp->pdev->device == TG3PCI_DEVICE_TIGON3_57761)
12512                 strcpy(tp->board_part_number, "BCM57761");
12513         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765 &&
12514                  tp->pdev->device == TG3PCI_DEVICE_TIGON3_57765)
12515                 strcpy(tp->board_part_number, "BCM57765");
12516         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765 &&
12517                  tp->pdev->device == TG3PCI_DEVICE_TIGON3_57781)
12518                 strcpy(tp->board_part_number, "BCM57781");
12519         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765 &&
12520                  tp->pdev->device == TG3PCI_DEVICE_TIGON3_57785)
12521                 strcpy(tp->board_part_number, "BCM57785");
12522         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765 &&
12523                  tp->pdev->device == TG3PCI_DEVICE_TIGON3_57791)
12524                 strcpy(tp->board_part_number, "BCM57791");
12525         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765 &&
12526                  tp->pdev->device == TG3PCI_DEVICE_TIGON3_57795)
12527                 strcpy(tp->board_part_number, "BCM57795");
12528         else
12529                 strcpy(tp->board_part_number, "none");
12530 }
12531
12532 static int __devinit tg3_fw_img_is_valid(struct tg3 *tp, u32 offset)
12533 {
12534         u32 val;
12535
12536         if (tg3_nvram_read(tp, offset, &val) ||
12537             (val & 0xfc000000) != 0x0c000000 ||
12538             tg3_nvram_read(tp, offset + 4, &val) ||
12539             val != 0)
12540                 return 0;
12541
12542         return 1;
12543 }
12544
12545 static void __devinit tg3_read_bc_ver(struct tg3 *tp)
12546 {
12547         u32 val, offset, start, ver_offset;
12548         int i, dst_off;
12549         bool newver = false;
12550
12551         if (tg3_nvram_read(tp, 0xc, &offset) ||
12552             tg3_nvram_read(tp, 0x4, &start))
12553                 return;
12554
12555         offset = tg3_nvram_logical_addr(tp, offset);
12556
12557         if (tg3_nvram_read(tp, offset, &val))
12558                 return;
12559
12560         if ((val & 0xfc000000) == 0x0c000000) {
12561                 if (tg3_nvram_read(tp, offset + 4, &val))
12562                         return;
12563
12564                 if (val == 0)
12565                         newver = true;
12566         }
12567
12568         dst_off = strlen(tp->fw_ver);
12569
12570         if (newver) {
12571                 if (TG3_VER_SIZE - dst_off < 16 ||
12572                     tg3_nvram_read(tp, offset + 8, &ver_offset))
12573                         return;
12574
12575                 offset = offset + ver_offset - start;
12576                 for (i = 0; i < 16; i += 4) {
12577                         __be32 v;
12578                         if (tg3_nvram_read_be32(tp, offset + i, &v))
12579                                 return;
12580
12581                         memcpy(tp->fw_ver + dst_off + i, &v, sizeof(v));
12582                 }
12583         } else {
12584                 u32 major, minor;
12585
12586                 if (tg3_nvram_read(tp, TG3_NVM_PTREV_BCVER, &ver_offset))
12587                         return;
12588
12589                 major = (ver_offset & TG3_NVM_BCVER_MAJMSK) >>
12590                         TG3_NVM_BCVER_MAJSFT;
12591                 minor = ver_offset & TG3_NVM_BCVER_MINMSK;
12592                 snprintf(&tp->fw_ver[dst_off], TG3_VER_SIZE - dst_off,
12593                          "v%d.%02d", major, minor);
12594         }
12595 }
12596
12597 static void __devinit tg3_read_hwsb_ver(struct tg3 *tp)
12598 {
12599         u32 val, major, minor;
12600
12601         /* Use native endian representation */
12602         if (tg3_nvram_read(tp, TG3_NVM_HWSB_CFG1, &val))
12603                 return;
12604
12605         major = (val & TG3_NVM_HWSB_CFG1_MAJMSK) >>
12606                 TG3_NVM_HWSB_CFG1_MAJSFT;
12607         minor = (val & TG3_NVM_HWSB_CFG1_MINMSK) >>
12608                 TG3_NVM_HWSB_CFG1_MINSFT;
12609
12610         snprintf(&tp->fw_ver[0], 32, "sb v%d.%02d", major, minor);
12611 }
12612
12613 static void __devinit tg3_read_sb_ver(struct tg3 *tp, u32 val)
12614 {
12615         u32 offset, major, minor, build;
12616
12617         strncat(tp->fw_ver, "sb", TG3_VER_SIZE - strlen(tp->fw_ver) - 1);
12618
12619         if ((val & TG3_EEPROM_SB_FORMAT_MASK) != TG3_EEPROM_SB_FORMAT_1)
12620                 return;
12621
12622         switch (val & TG3_EEPROM_SB_REVISION_MASK) {
12623         case TG3_EEPROM_SB_REVISION_0:
12624                 offset = TG3_EEPROM_SB_F1R0_EDH_OFF;
12625                 break;
12626         case TG3_EEPROM_SB_REVISION_2:
12627                 offset = TG3_EEPROM_SB_F1R2_EDH_OFF;
12628                 break;
12629         case TG3_EEPROM_SB_REVISION_3:
12630                 offset = TG3_EEPROM_SB_F1R3_EDH_OFF;
12631                 break;
12632         case TG3_EEPROM_SB_REVISION_4:
12633                 offset = TG3_EEPROM_SB_F1R4_EDH_OFF;
12634                 break;
12635         case TG3_EEPROM_SB_REVISION_5:
12636                 offset = TG3_EEPROM_SB_F1R5_EDH_OFF;
12637                 break;
12638         default:
12639                 return;
12640         }
12641
12642         if (tg3_nvram_read(tp, offset, &val))
12643                 return;
12644
12645         build = (val & TG3_EEPROM_SB_EDH_BLD_MASK) >>
12646                 TG3_EEPROM_SB_EDH_BLD_SHFT;
12647         major = (val & TG3_EEPROM_SB_EDH_MAJ_MASK) >>
12648                 TG3_EEPROM_SB_EDH_MAJ_SHFT;
12649         minor =  val & TG3_EEPROM_SB_EDH_MIN_MASK;
12650
12651         if (minor > 99 || build > 26)
12652                 return;
12653
12654         offset = strlen(tp->fw_ver);
12655         snprintf(&tp->fw_ver[offset], TG3_VER_SIZE - offset,
12656                  " v%d.%02d", major, minor);
12657
12658         if (build > 0) {
12659                 offset = strlen(tp->fw_ver);
12660                 if (offset < TG3_VER_SIZE - 1)
12661                         tp->fw_ver[offset] = 'a' + build - 1;
12662         }
12663 }
12664
12665 static void __devinit tg3_read_mgmtfw_ver(struct tg3 *tp)
12666 {
12667         u32 val, offset, start;
12668         int i, vlen;
12669
12670         for (offset = TG3_NVM_DIR_START;
12671              offset < TG3_NVM_DIR_END;
12672              offset += TG3_NVM_DIRENT_SIZE) {
12673                 if (tg3_nvram_read(tp, offset, &val))
12674                         return;
12675
12676                 if ((val >> TG3_NVM_DIRTYPE_SHIFT) == TG3_NVM_DIRTYPE_ASFINI)
12677                         break;
12678         }
12679
12680         if (offset == TG3_NVM_DIR_END)
12681                 return;
12682
12683         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
12684                 start = 0x08000000;
12685         else if (tg3_nvram_read(tp, offset - 4, &start))
12686                 return;
12687
12688         if (tg3_nvram_read(tp, offset + 4, &offset) ||
12689             !tg3_fw_img_is_valid(tp, offset) ||
12690             tg3_nvram_read(tp, offset + 8, &val))
12691                 return;
12692
12693         offset += val - start;
12694
12695         vlen = strlen(tp->fw_ver);
12696
12697         tp->fw_ver[vlen++] = ',';
12698         tp->fw_ver[vlen++] = ' ';
12699
12700         for (i = 0; i < 4; i++) {
12701                 __be32 v;
12702                 if (tg3_nvram_read_be32(tp, offset, &v))
12703                         return;
12704
12705                 offset += sizeof(v);
12706
12707                 if (vlen > TG3_VER_SIZE - sizeof(v)) {
12708                         memcpy(&tp->fw_ver[vlen], &v, TG3_VER_SIZE - vlen);
12709                         break;
12710                 }
12711
12712                 memcpy(&tp->fw_ver[vlen], &v, sizeof(v));
12713                 vlen += sizeof(v);
12714         }
12715 }
12716
12717 static void __devinit tg3_read_dash_ver(struct tg3 *tp)
12718 {
12719         int vlen;
12720         u32 apedata;
12721
12722         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) ||
12723             !(tp->tg3_flags  & TG3_FLAG_ENABLE_ASF))
12724                 return;
12725
12726         apedata = tg3_ape_read32(tp, TG3_APE_SEG_SIG);
12727         if (apedata != APE_SEG_SIG_MAGIC)
12728                 return;
12729
12730         apedata = tg3_ape_read32(tp, TG3_APE_FW_STATUS);
12731         if (!(apedata & APE_FW_STATUS_READY))
12732                 return;
12733
12734         apedata = tg3_ape_read32(tp, TG3_APE_FW_VERSION);
12735
12736         vlen = strlen(tp->fw_ver);
12737
12738         snprintf(&tp->fw_ver[vlen], TG3_VER_SIZE - vlen, " DASH v%d.%d.%d.%d",
12739                  (apedata & APE_FW_VERSION_MAJMSK) >> APE_FW_VERSION_MAJSFT,
12740                  (apedata & APE_FW_VERSION_MINMSK) >> APE_FW_VERSION_MINSFT,
12741                  (apedata & APE_FW_VERSION_REVMSK) >> APE_FW_VERSION_REVSFT,
12742                  (apedata & APE_FW_VERSION_BLDMSK));
12743 }
12744
12745 static void __devinit tg3_read_fw_ver(struct tg3 *tp)
12746 {
12747         u32 val;
12748         bool vpd_vers = false;
12749
12750         if (tp->fw_ver[0] != 0)
12751                 vpd_vers = true;
12752
12753         if (tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) {
12754                 strcat(tp->fw_ver, "sb");
12755                 return;
12756         }
12757
12758         if (tg3_nvram_read(tp, 0, &val))
12759                 return;
12760
12761         if (val == TG3_EEPROM_MAGIC)
12762                 tg3_read_bc_ver(tp);
12763         else if ((val & TG3_EEPROM_MAGIC_FW_MSK) == TG3_EEPROM_MAGIC_FW)
12764                 tg3_read_sb_ver(tp, val);
12765         else if ((val & TG3_EEPROM_MAGIC_HW_MSK) == TG3_EEPROM_MAGIC_HW)
12766                 tg3_read_hwsb_ver(tp);
12767         else
12768                 return;
12769
12770         if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF) ||
12771              (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) || vpd_vers)
12772                 goto done;
12773
12774         tg3_read_mgmtfw_ver(tp);
12775
12776 done:
12777         tp->fw_ver[TG3_VER_SIZE - 1] = 0;
12778 }
12779
12780 static struct pci_dev * __devinit tg3_find_peer(struct tg3 *);
12781
12782 static int __devinit tg3_get_invariants(struct tg3 *tp)
12783 {
12784         static struct pci_device_id write_reorder_chipsets[] = {
12785                 { PCI_DEVICE(PCI_VENDOR_ID_AMD,
12786                              PCI_DEVICE_ID_AMD_FE_GATE_700C) },
12787                 { PCI_DEVICE(PCI_VENDOR_ID_AMD,
12788                              PCI_DEVICE_ID_AMD_8131_BRIDGE) },
12789                 { PCI_DEVICE(PCI_VENDOR_ID_VIA,
12790                              PCI_DEVICE_ID_VIA_8385_0) },
12791                 { },
12792         };
12793         u32 misc_ctrl_reg;
12794         u32 pci_state_reg, grc_misc_cfg;
12795         u32 val;
12796         u16 pci_cmd;
12797         int err;
12798
12799         /* Force memory write invalidate off.  If we leave it on,
12800          * then on 5700_BX chips we have to enable a workaround.
12801          * The workaround is to set the TG3PCI_DMA_RW_CTRL boundary
12802          * to match the cacheline size.  The Broadcom driver have this
12803          * workaround but turns MWI off all the times so never uses
12804          * it.  This seems to suggest that the workaround is insufficient.
12805          */
12806         pci_read_config_word(tp->pdev, PCI_COMMAND, &pci_cmd);
12807         pci_cmd &= ~PCI_COMMAND_INVALIDATE;
12808         pci_write_config_word(tp->pdev, PCI_COMMAND, pci_cmd);
12809
12810         /* It is absolutely critical that TG3PCI_MISC_HOST_CTRL
12811          * has the register indirect write enable bit set before
12812          * we try to access any of the MMIO registers.  It is also
12813          * critical that the PCI-X hw workaround situation is decided
12814          * before that as well.
12815          */
12816         pci_read_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
12817                               &misc_ctrl_reg);
12818
12819         tp->pci_chip_rev_id = (misc_ctrl_reg >>
12820                                MISC_HOST_CTRL_CHIPREV_SHIFT);
12821         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_USE_PROD_ID_REG) {
12822                 u32 prod_id_asic_rev;
12823
12824                 if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_5717 ||
12825                     tp->pdev->device == TG3PCI_DEVICE_TIGON3_5718 ||
12826                     tp->pdev->device == TG3PCI_DEVICE_TIGON3_5724)
12827                         pci_read_config_dword(tp->pdev,
12828                                               TG3PCI_GEN2_PRODID_ASICREV,
12829                                               &prod_id_asic_rev);
12830                 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57781 ||
12831                          tp->pdev->device == TG3PCI_DEVICE_TIGON3_57785 ||
12832                          tp->pdev->device == TG3PCI_DEVICE_TIGON3_57761 ||
12833                          tp->pdev->device == TG3PCI_DEVICE_TIGON3_57765 ||
12834                          tp->pdev->device == TG3PCI_DEVICE_TIGON3_57791 ||
12835                          tp->pdev->device == TG3PCI_DEVICE_TIGON3_57795)
12836                         pci_read_config_dword(tp->pdev,
12837                                               TG3PCI_GEN15_PRODID_ASICREV,
12838                                               &prod_id_asic_rev);
12839                 else
12840                         pci_read_config_dword(tp->pdev, TG3PCI_PRODID_ASICREV,
12841                                               &prod_id_asic_rev);
12842
12843                 tp->pci_chip_rev_id = prod_id_asic_rev;
12844         }
12845
12846         /* Wrong chip ID in 5752 A0. This code can be removed later
12847          * as A0 is not in production.
12848          */
12849         if (tp->pci_chip_rev_id == CHIPREV_ID_5752_A0_HW)
12850                 tp->pci_chip_rev_id = CHIPREV_ID_5752_A0;
12851
12852         /* If we have 5702/03 A1 or A2 on certain ICH chipsets,
12853          * we need to disable memory and use config. cycles
12854          * only to access all registers. The 5702/03 chips
12855          * can mistakenly decode the special cycles from the
12856          * ICH chipsets as memory write cycles, causing corruption
12857          * of register and memory space. Only certain ICH bridges
12858          * will drive special cycles with non-zero data during the
12859          * address phase which can fall within the 5703's address
12860          * range. This is not an ICH bug as the PCI spec allows
12861          * non-zero address during special cycles. However, only
12862          * these ICH bridges are known to drive non-zero addresses
12863          * during special cycles.
12864          *
12865          * Since special cycles do not cross PCI bridges, we only
12866          * enable this workaround if the 5703 is on the secondary
12867          * bus of these ICH bridges.
12868          */
12869         if ((tp->pci_chip_rev_id == CHIPREV_ID_5703_A1) ||
12870             (tp->pci_chip_rev_id == CHIPREV_ID_5703_A2)) {
12871                 static struct tg3_dev_id {
12872                         u32     vendor;
12873                         u32     device;
12874                         u32     rev;
12875                 } ich_chipsets[] = {
12876                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_8,
12877                           PCI_ANY_ID },
12878                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_8,
12879                           PCI_ANY_ID },
12880                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_11,
12881                           0xa },
12882                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_6,
12883                           PCI_ANY_ID },
12884                         { },
12885                 };
12886                 struct tg3_dev_id *pci_id = &ich_chipsets[0];
12887                 struct pci_dev *bridge = NULL;
12888
12889                 while (pci_id->vendor != 0) {
12890                         bridge = pci_get_device(pci_id->vendor, pci_id->device,
12891                                                 bridge);
12892                         if (!bridge) {
12893                                 pci_id++;
12894                                 continue;
12895                         }
12896                         if (pci_id->rev != PCI_ANY_ID) {
12897                                 if (bridge->revision > pci_id->rev)
12898                                         continue;
12899                         }
12900                         if (bridge->subordinate &&
12901                             (bridge->subordinate->number ==
12902                              tp->pdev->bus->number)) {
12903
12904                                 tp->tg3_flags2 |= TG3_FLG2_ICH_WORKAROUND;
12905                                 pci_dev_put(bridge);
12906                                 break;
12907                         }
12908                 }
12909         }
12910
12911         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)) {
12912                 static struct tg3_dev_id {
12913                         u32     vendor;
12914                         u32     device;
12915                 } bridge_chipsets[] = {
12916                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0 },
12917                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1 },
12918                         { },
12919                 };
12920                 struct tg3_dev_id *pci_id = &bridge_chipsets[0];
12921                 struct pci_dev *bridge = NULL;
12922
12923                 while (pci_id->vendor != 0) {
12924                         bridge = pci_get_device(pci_id->vendor,
12925                                                 pci_id->device,
12926                                                 bridge);
12927                         if (!bridge) {
12928                                 pci_id++;
12929                                 continue;
12930                         }
12931                         if (bridge->subordinate &&
12932                             (bridge->subordinate->number <=
12933                              tp->pdev->bus->number) &&
12934                             (bridge->subordinate->subordinate >=
12935                              tp->pdev->bus->number)) {
12936                                 tp->tg3_flags3 |= TG3_FLG3_5701_DMA_BUG;
12937                                 pci_dev_put(bridge);
12938                                 break;
12939                         }
12940                 }
12941         }
12942
12943         /* The EPB bridge inside 5714, 5715, and 5780 cannot support
12944          * DMA addresses > 40-bit. This bridge may have other additional
12945          * 57xx devices behind it in some 4-port NIC designs for example.
12946          * Any tg3 device found behind the bridge will also need the 40-bit
12947          * DMA workaround.
12948          */
12949         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780 ||
12950             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714) {
12951                 tp->tg3_flags2 |= TG3_FLG2_5780_CLASS;
12952                 tp->tg3_flags |= TG3_FLAG_40BIT_DMA_BUG;
12953                 tp->msi_cap = pci_find_capability(tp->pdev, PCI_CAP_ID_MSI);
12954         } else {
12955                 struct pci_dev *bridge = NULL;
12956
12957                 do {
12958                         bridge = pci_get_device(PCI_VENDOR_ID_SERVERWORKS,
12959                                                 PCI_DEVICE_ID_SERVERWORKS_EPB,
12960                                                 bridge);
12961                         if (bridge && bridge->subordinate &&
12962                             (bridge->subordinate->number <=
12963                              tp->pdev->bus->number) &&
12964                             (bridge->subordinate->subordinate >=
12965                              tp->pdev->bus->number)) {
12966                                 tp->tg3_flags |= TG3_FLAG_40BIT_DMA_BUG;
12967                                 pci_dev_put(bridge);
12968                                 break;
12969                         }
12970                 } while (bridge);
12971         }
12972
12973         /* Initialize misc host control in PCI block. */
12974         tp->misc_host_ctrl |= (misc_ctrl_reg &
12975                                MISC_HOST_CTRL_CHIPREV);
12976         pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
12977                                tp->misc_host_ctrl);
12978
12979         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
12980             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714 ||
12981             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717)
12982                 tp->pdev_peer = tg3_find_peer(tp);
12983
12984         /* Intentionally exclude ASIC_REV_5906 */
12985         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 ||
12986             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5787 ||
12987             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
12988             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
12989             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
12990             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 ||
12991             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
12992             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
12993                 tp->tg3_flags3 |= TG3_FLG3_5755_PLUS;
12994
12995         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750 ||
12996             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752 ||
12997             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906 ||
12998             (tp->tg3_flags3 & TG3_FLG3_5755_PLUS) ||
12999             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
13000                 tp->tg3_flags2 |= TG3_FLG2_5750_PLUS;
13001
13002         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) ||
13003             (tp->tg3_flags2 & TG3_FLG2_5750_PLUS))
13004                 tp->tg3_flags2 |= TG3_FLG2_5705_PLUS;
13005
13006         /* 5700 B0 chips do not support checksumming correctly due
13007          * to hardware bugs.
13008          */
13009         if (tp->pci_chip_rev_id == CHIPREV_ID_5700_B0)
13010                 tp->tg3_flags |= TG3_FLAG_BROKEN_CHECKSUMS;
13011         else {
13012                 tp->tg3_flags |= TG3_FLAG_RX_CHECKSUMS;
13013                 tp->dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
13014                 if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
13015                         tp->dev->features |= NETIF_F_IPV6_CSUM;
13016                 tp->dev->features |= NETIF_F_GRO;
13017         }
13018
13019         /* Determine TSO capabilities */
13020         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
13021             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
13022                 tp->tg3_flags2 |= TG3_FLG2_HW_TSO_3;
13023         else if ((tp->tg3_flags3 & TG3_FLG3_5755_PLUS) ||
13024                  GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
13025                 tp->tg3_flags2 |= TG3_FLG2_HW_TSO_2;
13026         else if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) {
13027                 tp->tg3_flags2 |= TG3_FLG2_HW_TSO_1 | TG3_FLG2_TSO_BUG;
13028                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750 &&
13029                     tp->pci_chip_rev_id >= CHIPREV_ID_5750_C2)
13030                         tp->tg3_flags2 &= ~TG3_FLG2_TSO_BUG;
13031         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
13032                    GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701 &&
13033                    tp->pci_chip_rev_id != CHIPREV_ID_5705_A0) {
13034                 tp->tg3_flags2 |= TG3_FLG2_TSO_BUG;
13035                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705)
13036                         tp->fw_needed = FIRMWARE_TG3TSO5;
13037                 else
13038                         tp->fw_needed = FIRMWARE_TG3TSO;
13039         }
13040
13041         tp->irq_max = 1;
13042
13043         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) {
13044                 tp->tg3_flags |= TG3_FLAG_SUPPORT_MSI;
13045                 if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_AX ||
13046                     GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_BX ||
13047                     (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714 &&
13048                      tp->pci_chip_rev_id <= CHIPREV_ID_5714_A2 &&
13049                      tp->pdev_peer == tp->pdev))
13050                         tp->tg3_flags &= ~TG3_FLAG_SUPPORT_MSI;
13051
13052                 if ((tp->tg3_flags3 & TG3_FLG3_5755_PLUS) ||
13053                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
13054                         tp->tg3_flags2 |= TG3_FLG2_1SHOT_MSI;
13055                 }
13056
13057                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
13058                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765) {
13059                         tp->tg3_flags |= TG3_FLAG_SUPPORT_MSIX;
13060                         tp->irq_max = TG3_IRQ_MAX_VECS;
13061                 }
13062         }
13063
13064         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
13065             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
13066                 tp->tg3_flags3 |= TG3_FLG3_SHORT_DMA_BUG;
13067         else if (!(tp->tg3_flags3 & TG3_FLG3_5755_PLUS)) {
13068                 tp->tg3_flags3 |= TG3_FLG3_4G_DMA_BNDRY_BUG;
13069                 tp->tg3_flags3 |= TG3_FLG3_40BIT_DMA_LIMIT_BUG;
13070         }
13071
13072         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
13073             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
13074                 tp->tg3_flags3 |= TG3_FLG3_USE_JUMBO_BDFLAG;
13075
13076         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ||
13077             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) ||
13078             (tp->tg3_flags3 & TG3_FLG3_USE_JUMBO_BDFLAG))
13079                 tp->tg3_flags |= TG3_FLAG_JUMBO_CAPABLE;
13080
13081         pci_read_config_dword(tp->pdev, TG3PCI_PCISTATE,
13082                               &pci_state_reg);
13083
13084         tp->pcie_cap = pci_find_capability(tp->pdev, PCI_CAP_ID_EXP);
13085         if (tp->pcie_cap != 0) {
13086                 u16 lnkctl;
13087
13088                 tp->tg3_flags2 |= TG3_FLG2_PCI_EXPRESS;
13089
13090                 pcie_set_readrq(tp->pdev, 4096);
13091
13092                 pci_read_config_word(tp->pdev,
13093                                      tp->pcie_cap + PCI_EXP_LNKCTL,
13094                                      &lnkctl);
13095                 if (lnkctl & PCI_EXP_LNKCTL_CLKREQ_EN) {
13096                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
13097                                 tp->tg3_flags2 &= ~TG3_FLG2_HW_TSO_2;
13098                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
13099                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
13100                             tp->pci_chip_rev_id == CHIPREV_ID_57780_A0 ||
13101                             tp->pci_chip_rev_id == CHIPREV_ID_57780_A1)
13102                                 tp->tg3_flags3 |= TG3_FLG3_CLKREQ_BUG;
13103                 } else if (tp->pci_chip_rev_id == CHIPREV_ID_5717_A0) {
13104                         tp->tg3_flags3 |= TG3_FLG3_L1PLLPD_EN;
13105                 }
13106         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785) {
13107                 tp->tg3_flags2 |= TG3_FLG2_PCI_EXPRESS;
13108         } else if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ||
13109                    (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
13110                 tp->pcix_cap = pci_find_capability(tp->pdev, PCI_CAP_ID_PCIX);
13111                 if (!tp->pcix_cap) {
13112                         dev_err(&tp->pdev->dev,
13113                                 "Cannot find PCI-X capability, aborting\n");
13114                         return -EIO;
13115                 }
13116
13117                 if (!(pci_state_reg & PCISTATE_CONV_PCI_MODE))
13118                         tp->tg3_flags |= TG3_FLAG_PCIX_MODE;
13119         }
13120
13121         /* If we have an AMD 762 or VIA K8T800 chipset, write
13122          * reordering to the mailbox registers done by the host
13123          * controller can cause major troubles.  We read back from
13124          * every mailbox register write to force the writes to be
13125          * posted to the chip in order.
13126          */
13127         if (pci_dev_present(write_reorder_chipsets) &&
13128             !(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS))
13129                 tp->tg3_flags |= TG3_FLAG_MBOX_WRITE_REORDER;
13130
13131         pci_read_config_byte(tp->pdev, PCI_CACHE_LINE_SIZE,
13132                              &tp->pci_cacheline_sz);
13133         pci_read_config_byte(tp->pdev, PCI_LATENCY_TIMER,
13134                              &tp->pci_lat_timer);
13135         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 &&
13136             tp->pci_lat_timer < 64) {
13137                 tp->pci_lat_timer = 64;
13138                 pci_write_config_byte(tp->pdev, PCI_LATENCY_TIMER,
13139                                       tp->pci_lat_timer);
13140         }
13141
13142         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5700_BX) {
13143                 /* 5700 BX chips need to have their TX producer index
13144                  * mailboxes written twice to workaround a bug.
13145                  */
13146                 tp->tg3_flags |= TG3_FLAG_TXD_MBOX_HWBUG;
13147
13148                 /* If we are in PCI-X mode, enable register write workaround.
13149                  *
13150                  * The workaround is to use indirect register accesses
13151                  * for all chip writes not to mailbox registers.
13152                  */
13153                 if (tp->tg3_flags & TG3_FLAG_PCIX_MODE) {
13154                         u32 pm_reg;
13155
13156                         tp->tg3_flags |= TG3_FLAG_PCIX_TARGET_HWBUG;
13157
13158                         /* The chip can have it's power management PCI config
13159                          * space registers clobbered due to this bug.
13160                          * So explicitly force the chip into D0 here.
13161                          */
13162                         pci_read_config_dword(tp->pdev,
13163                                               tp->pm_cap + PCI_PM_CTRL,
13164                                               &pm_reg);
13165                         pm_reg &= ~PCI_PM_CTRL_STATE_MASK;
13166                         pm_reg |= PCI_PM_CTRL_PME_ENABLE | 0 /* D0 */;
13167                         pci_write_config_dword(tp->pdev,
13168                                                tp->pm_cap + PCI_PM_CTRL,
13169                                                pm_reg);
13170
13171                         /* Also, force SERR#/PERR# in PCI command. */
13172                         pci_read_config_word(tp->pdev, PCI_COMMAND, &pci_cmd);
13173                         pci_cmd |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
13174                         pci_write_config_word(tp->pdev, PCI_COMMAND, pci_cmd);
13175                 }
13176         }
13177
13178         if ((pci_state_reg & PCISTATE_BUS_SPEED_HIGH) != 0)
13179                 tp->tg3_flags |= TG3_FLAG_PCI_HIGH_SPEED;
13180         if ((pci_state_reg & PCISTATE_BUS_32BIT) != 0)
13181                 tp->tg3_flags |= TG3_FLAG_PCI_32BIT;
13182
13183         /* Chip-specific fixup from Broadcom driver */
13184         if ((tp->pci_chip_rev_id == CHIPREV_ID_5704_A0) &&
13185             (!(pci_state_reg & PCISTATE_RETRY_SAME_DMA))) {
13186                 pci_state_reg |= PCISTATE_RETRY_SAME_DMA;
13187                 pci_write_config_dword(tp->pdev, TG3PCI_PCISTATE, pci_state_reg);
13188         }
13189
13190         /* Default fast path register access methods */
13191         tp->read32 = tg3_read32;
13192         tp->write32 = tg3_write32;
13193         tp->read32_mbox = tg3_read32;
13194         tp->write32_mbox = tg3_write32;
13195         tp->write32_tx_mbox = tg3_write32;
13196         tp->write32_rx_mbox = tg3_write32;
13197
13198         /* Various workaround register access methods */
13199         if (tp->tg3_flags & TG3_FLAG_PCIX_TARGET_HWBUG)
13200                 tp->write32 = tg3_write_indirect_reg32;
13201         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701 ||
13202                  ((tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) &&
13203                   tp->pci_chip_rev_id == CHIPREV_ID_5750_A0)) {
13204                 /*
13205                  * Back to back register writes can cause problems on these
13206                  * chips, the workaround is to read back all reg writes
13207                  * except those to mailbox regs.
13208                  *
13209                  * See tg3_write_indirect_reg32().
13210                  */
13211                 tp->write32 = tg3_write_flush_reg32;
13212         }
13213
13214         if ((tp->tg3_flags & TG3_FLAG_TXD_MBOX_HWBUG) ||
13215             (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)) {
13216                 tp->write32_tx_mbox = tg3_write32_tx_mbox;
13217                 if (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)
13218                         tp->write32_rx_mbox = tg3_write_flush_reg32;
13219         }
13220
13221         if (tp->tg3_flags2 & TG3_FLG2_ICH_WORKAROUND) {
13222                 tp->read32 = tg3_read_indirect_reg32;
13223                 tp->write32 = tg3_write_indirect_reg32;
13224                 tp->read32_mbox = tg3_read_indirect_mbox;
13225                 tp->write32_mbox = tg3_write_indirect_mbox;
13226                 tp->write32_tx_mbox = tg3_write_indirect_mbox;
13227                 tp->write32_rx_mbox = tg3_write_indirect_mbox;
13228
13229                 iounmap(tp->regs);
13230                 tp->regs = NULL;
13231
13232                 pci_read_config_word(tp->pdev, PCI_COMMAND, &pci_cmd);
13233                 pci_cmd &= ~PCI_COMMAND_MEMORY;
13234                 pci_write_config_word(tp->pdev, PCI_COMMAND, pci_cmd);
13235         }
13236         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
13237                 tp->read32_mbox = tg3_read32_mbox_5906;
13238                 tp->write32_mbox = tg3_write32_mbox_5906;
13239                 tp->write32_tx_mbox = tg3_write32_mbox_5906;
13240                 tp->write32_rx_mbox = tg3_write32_mbox_5906;
13241         }
13242
13243         if (tp->write32 == tg3_write_indirect_reg32 ||
13244             ((tp->tg3_flags & TG3_FLAG_PCIX_MODE) &&
13245              (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
13246               GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)))
13247                 tp->tg3_flags |= TG3_FLAG_SRAM_USE_CONFIG;
13248
13249         /* Get eeprom hw config before calling tg3_set_power_state().
13250          * In particular, the TG3_FLG2_IS_NIC flag must be
13251          * determined before calling tg3_set_power_state() so that
13252          * we know whether or not to switch out of Vaux power.
13253          * When the flag is set, it means that GPIO1 is used for eeprom
13254          * write protect and also implies that it is a LOM where GPIOs
13255          * are not used to switch power.
13256          */
13257         tg3_get_eeprom_hw_cfg(tp);
13258
13259         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
13260                 /* Allow reads and writes to the
13261                  * APE register and memory space.
13262                  */
13263                 pci_state_reg |= PCISTATE_ALLOW_APE_CTLSPC_WR |
13264                                  PCISTATE_ALLOW_APE_SHMEM_WR |
13265                                  PCISTATE_ALLOW_APE_PSPACE_WR;
13266                 pci_write_config_dword(tp->pdev, TG3PCI_PCISTATE,
13267                                        pci_state_reg);
13268         }
13269
13270         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
13271             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
13272             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
13273             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 ||
13274             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
13275             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
13276                 tp->tg3_flags |= TG3_FLAG_CPMU_PRESENT;
13277
13278         /* Set up tp->grc_local_ctrl before calling tg3_set_power_state().
13279          * GPIO1 driven high will bring 5700's external PHY out of reset.
13280          * It is also used as eeprom write protect on LOMs.
13281          */
13282         tp->grc_local_ctrl = GRC_LCLCTRL_INT_ON_ATTN | GRC_LCLCTRL_AUTO_SEEPROM;
13283         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) ||
13284             (tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT))
13285                 tp->grc_local_ctrl |= (GRC_LCLCTRL_GPIO_OE1 |
13286                                        GRC_LCLCTRL_GPIO_OUTPUT1);
13287         /* Unused GPIO3 must be driven as output on 5752 because there
13288          * are no pull-up resistors on unused GPIO pins.
13289          */
13290         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752)
13291                 tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE3;
13292
13293         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 ||
13294             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 ||
13295             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
13296                 tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_UART_SEL;
13297
13298         if (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5761 ||
13299             tp->pdev->device == TG3PCI_DEVICE_TIGON3_5761S) {
13300                 /* Turn off the debug UART. */
13301                 tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_UART_SEL;
13302                 if (tp->tg3_flags2 & TG3_FLG2_IS_NIC)
13303                         /* Keep VMain power. */
13304                         tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE0 |
13305                                               GRC_LCLCTRL_GPIO_OUTPUT0;
13306         }
13307
13308         /* Force the chip into D0. */
13309         err = tg3_set_power_state(tp, PCI_D0);
13310         if (err) {
13311                 dev_err(&tp->pdev->dev, "Transition to D0 failed\n");
13312                 return err;
13313         }
13314
13315         /* Derive initial jumbo mode from MTU assigned in
13316          * ether_setup() via the alloc_etherdev() call
13317          */
13318         if (tp->dev->mtu > ETH_DATA_LEN &&
13319             !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
13320                 tp->tg3_flags |= TG3_FLAG_JUMBO_RING_ENABLE;
13321
13322         /* Determine WakeOnLan speed to use. */
13323         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
13324             tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
13325             tp->pci_chip_rev_id == CHIPREV_ID_5701_B0 ||
13326             tp->pci_chip_rev_id == CHIPREV_ID_5701_B2) {
13327                 tp->tg3_flags &= ~(TG3_FLAG_WOL_SPEED_100MB);
13328         } else {
13329                 tp->tg3_flags |= TG3_FLAG_WOL_SPEED_100MB;
13330         }
13331
13332         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
13333                 tp->tg3_flags3 |= TG3_FLG3_PHY_IS_FET;
13334
13335         /* A few boards don't want Ethernet@WireSpeed phy feature */
13336         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) ||
13337             ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) &&
13338              (tp->pci_chip_rev_id != CHIPREV_ID_5705_A0) &&
13339              (tp->pci_chip_rev_id != CHIPREV_ID_5705_A1)) ||
13340             (tp->tg3_flags3 & TG3_FLG3_PHY_IS_FET) ||
13341             (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES))
13342                 tp->tg3_flags2 |= TG3_FLG2_NO_ETH_WIRE_SPEED;
13343
13344         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5703_AX ||
13345             GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5704_AX)
13346                 tp->tg3_flags2 |= TG3_FLG2_PHY_ADC_BUG;
13347         if (tp->pci_chip_rev_id == CHIPREV_ID_5704_A0)
13348                 tp->tg3_flags2 |= TG3_FLG2_PHY_5704_A0_BUG;
13349
13350         if ((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
13351             !(tp->tg3_flags3 & TG3_FLG3_PHY_IS_FET) &&
13352             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785 &&
13353             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_57780 &&
13354             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5717 &&
13355             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_57765) {
13356                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 ||
13357                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5787 ||
13358                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
13359                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761) {
13360                         if (tp->pdev->device != PCI_DEVICE_ID_TIGON3_5756 &&
13361                             tp->pdev->device != PCI_DEVICE_ID_TIGON3_5722)
13362                                 tp->tg3_flags2 |= TG3_FLG2_PHY_JITTER_BUG;
13363                         if (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5755M)
13364                                 tp->tg3_flags2 |= TG3_FLG2_PHY_ADJUST_TRIM;
13365                 } else
13366                         tp->tg3_flags2 |= TG3_FLG2_PHY_BER_BUG;
13367         }
13368
13369         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
13370             GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) {
13371                 tp->phy_otp = tg3_read_otp_phycfg(tp);
13372                 if (tp->phy_otp == 0)
13373                         tp->phy_otp = TG3_OTP_DEFAULT;
13374         }
13375
13376         if (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT)
13377                 tp->mi_mode = MAC_MI_MODE_500KHZ_CONST;
13378         else
13379                 tp->mi_mode = MAC_MI_MODE_BASE;
13380
13381         tp->coalesce_mode = 0;
13382         if (GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5700_AX &&
13383             GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5700_BX)
13384                 tp->coalesce_mode |= HOSTCC_MODE_32BYTE;
13385
13386         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
13387             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
13388                 tp->tg3_flags3 |= TG3_FLG3_USE_PHYLIB;
13389
13390         err = tg3_mdio_init(tp);
13391         if (err)
13392                 return err;
13393
13394         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 &&
13395             (tp->pci_chip_rev_id != CHIPREV_ID_5717_A0 ||
13396                  (tp->tg3_flags2 & TG3_FLG2_MII_SERDES)))
13397                 return -ENOTSUPP;
13398
13399         /* Initialize data/descriptor byte/word swapping. */
13400         val = tr32(GRC_MODE);
13401         val &= GRC_MODE_HOST_STACKUP;
13402         tw32(GRC_MODE, val | tp->grc_mode);
13403
13404         tg3_switch_clocks(tp);
13405
13406         /* Clear this out for sanity. */
13407         tw32(TG3PCI_MEM_WIN_BASE_ADDR, 0);
13408
13409         pci_read_config_dword(tp->pdev, TG3PCI_PCISTATE,
13410                               &pci_state_reg);
13411         if ((pci_state_reg & PCISTATE_CONV_PCI_MODE) == 0 &&
13412             (tp->tg3_flags & TG3_FLAG_PCIX_TARGET_HWBUG) == 0) {
13413                 u32 chiprevid = GET_CHIP_REV_ID(tp->misc_host_ctrl);
13414
13415                 if (chiprevid == CHIPREV_ID_5701_A0 ||
13416                     chiprevid == CHIPREV_ID_5701_B0 ||
13417                     chiprevid == CHIPREV_ID_5701_B2 ||
13418                     chiprevid == CHIPREV_ID_5701_B5) {
13419                         void __iomem *sram_base;
13420
13421                         /* Write some dummy words into the SRAM status block
13422                          * area, see if it reads back correctly.  If the return
13423                          * value is bad, force enable the PCIX workaround.
13424                          */
13425                         sram_base = tp->regs + NIC_SRAM_WIN_BASE + NIC_SRAM_STATS_BLK;
13426
13427                         writel(0x00000000, sram_base);
13428                         writel(0x00000000, sram_base + 4);
13429                         writel(0xffffffff, sram_base + 4);
13430                         if (readl(sram_base) != 0x00000000)
13431                                 tp->tg3_flags |= TG3_FLAG_PCIX_TARGET_HWBUG;
13432                 }
13433         }
13434
13435         udelay(50);
13436         tg3_nvram_init(tp);
13437
13438         grc_misc_cfg = tr32(GRC_MISC_CFG);
13439         grc_misc_cfg &= GRC_MISC_CFG_BOARD_ID_MASK;
13440
13441         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 &&
13442             (grc_misc_cfg == GRC_MISC_CFG_BOARD_ID_5788 ||
13443              grc_misc_cfg == GRC_MISC_CFG_BOARD_ID_5788M))
13444                 tp->tg3_flags2 |= TG3_FLG2_IS_5788;
13445
13446         if (!(tp->tg3_flags2 & TG3_FLG2_IS_5788) &&
13447             (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700))
13448                 tp->tg3_flags |= TG3_FLAG_TAGGED_STATUS;
13449         if (tp->tg3_flags & TG3_FLAG_TAGGED_STATUS) {
13450                 tp->coalesce_mode |= (HOSTCC_MODE_CLRTICK_RXBD |
13451                                       HOSTCC_MODE_CLRTICK_TXBD);
13452
13453                 tp->misc_host_ctrl |= MISC_HOST_CTRL_TAGGED_STATUS;
13454                 pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
13455                                        tp->misc_host_ctrl);
13456         }
13457
13458         /* Preserve the APE MAC_MODE bits */
13459         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
13460                 tp->mac_mode = tr32(MAC_MODE) |
13461                                MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN;
13462         else
13463                 tp->mac_mode = TG3_DEF_MAC_MODE;
13464
13465         /* these are limited to 10/100 only */
13466         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 &&
13467              (grc_misc_cfg == 0x8000 || grc_misc_cfg == 0x4000)) ||
13468             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 &&
13469              tp->pdev->vendor == PCI_VENDOR_ID_BROADCOM &&
13470              (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5901 ||
13471               tp->pdev->device == PCI_DEVICE_ID_TIGON3_5901_2 ||
13472               tp->pdev->device == PCI_DEVICE_ID_TIGON3_5705F)) ||
13473             (tp->pdev->vendor == PCI_VENDOR_ID_BROADCOM &&
13474              (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5751F ||
13475               tp->pdev->device == PCI_DEVICE_ID_TIGON3_5753F ||
13476               tp->pdev->device == PCI_DEVICE_ID_TIGON3_5787F)) ||
13477             tp->pdev->device == TG3PCI_DEVICE_TIGON3_57790 ||
13478             tp->pdev->device == TG3PCI_DEVICE_TIGON3_57791 ||
13479             tp->pdev->device == TG3PCI_DEVICE_TIGON3_57795 ||
13480             (tp->tg3_flags3 & TG3_FLG3_PHY_IS_FET))
13481                 tp->tg3_flags |= TG3_FLAG_10_100_ONLY;
13482
13483         err = tg3_phy_probe(tp);
13484         if (err) {
13485                 dev_err(&tp->pdev->dev, "phy probe failed, err %d\n", err);
13486                 /* ... but do not return immediately ... */
13487                 tg3_mdio_fini(tp);
13488         }
13489
13490         tg3_read_vpd(tp);
13491         tg3_read_fw_ver(tp);
13492
13493         if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) {
13494                 tp->tg3_flags &= ~TG3_FLAG_USE_MI_INTERRUPT;
13495         } else {
13496                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700)
13497                         tp->tg3_flags |= TG3_FLAG_USE_MI_INTERRUPT;
13498                 else
13499                         tp->tg3_flags &= ~TG3_FLAG_USE_MI_INTERRUPT;
13500         }
13501
13502         /* 5700 {AX,BX} chips have a broken status block link
13503          * change bit implementation, so we must use the
13504          * status register in those cases.
13505          */
13506         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700)
13507                 tp->tg3_flags |= TG3_FLAG_USE_LINKCHG_REG;
13508         else
13509                 tp->tg3_flags &= ~TG3_FLAG_USE_LINKCHG_REG;
13510
13511         /* The led_ctrl is set during tg3_phy_probe, here we might
13512          * have to force the link status polling mechanism based
13513          * upon subsystem IDs.
13514          */
13515         if (tp->pdev->subsystem_vendor == PCI_VENDOR_ID_DELL &&
13516             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701 &&
13517             !(tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)) {
13518                 tp->tg3_flags |= (TG3_FLAG_USE_MI_INTERRUPT |
13519                                   TG3_FLAG_USE_LINKCHG_REG);
13520         }
13521
13522         /* For all SERDES we poll the MAC status register. */
13523         if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)
13524                 tp->tg3_flags |= TG3_FLAG_POLL_SERDES;
13525         else
13526                 tp->tg3_flags &= ~TG3_FLAG_POLL_SERDES;
13527
13528         tp->rx_offset = NET_IP_ALIGN + TG3_RX_HEADROOM;
13529         tp->rx_copy_thresh = TG3_RX_COPY_THRESHOLD;
13530         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701 &&
13531             (tp->tg3_flags & TG3_FLAG_PCIX_MODE) != 0) {
13532                 tp->rx_offset -= NET_IP_ALIGN;
13533 #ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
13534                 tp->rx_copy_thresh = ~(u16)0;
13535 #endif
13536         }
13537
13538         tp->rx_std_max_post = TG3_RX_RING_SIZE;
13539
13540         /* Increment the rx prod index on the rx std ring by at most
13541          * 8 for these chips to workaround hw errata.
13542          */
13543         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750 ||
13544             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752 ||
13545             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755)
13546                 tp->rx_std_max_post = 8;
13547
13548         if (tp->tg3_flags & TG3_FLAG_ASPM_WORKAROUND)
13549                 tp->pwrmgmt_thresh = tr32(PCIE_PWR_MGMT_THRESH) &
13550                                      PCIE_PWR_MGMT_L1_THRESH_MSK;
13551
13552         return err;
13553 }
13554
13555 #ifdef CONFIG_SPARC
13556 static int __devinit tg3_get_macaddr_sparc(struct tg3 *tp)
13557 {
13558         struct net_device *dev = tp->dev;
13559         struct pci_dev *pdev = tp->pdev;
13560         struct device_node *dp = pci_device_to_OF_node(pdev);
13561         const unsigned char *addr;
13562         int len;
13563
13564         addr = of_get_property(dp, "local-mac-address", &len);
13565         if (addr && len == 6) {
13566                 memcpy(dev->dev_addr, addr, 6);
13567                 memcpy(dev->perm_addr, dev->dev_addr, 6);
13568                 return 0;
13569         }
13570         return -ENODEV;
13571 }
13572
13573 static int __devinit tg3_get_default_macaddr_sparc(struct tg3 *tp)
13574 {
13575         struct net_device *dev = tp->dev;
13576
13577         memcpy(dev->dev_addr, idprom->id_ethaddr, 6);
13578         memcpy(dev->perm_addr, idprom->id_ethaddr, 6);
13579         return 0;
13580 }
13581 #endif
13582
13583 static int __devinit tg3_get_device_address(struct tg3 *tp)
13584 {
13585         struct net_device *dev = tp->dev;
13586         u32 hi, lo, mac_offset;
13587         int addr_ok = 0;
13588
13589 #ifdef CONFIG_SPARC
13590         if (!tg3_get_macaddr_sparc(tp))
13591                 return 0;
13592 #endif
13593
13594         mac_offset = 0x7c;
13595         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) ||
13596             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
13597                 if (tr32(TG3PCI_DUAL_MAC_CTRL) & DUAL_MAC_CTRL_ID)
13598                         mac_offset = 0xcc;
13599                 if (tg3_nvram_lock(tp))
13600                         tw32_f(NVRAM_CMD, NVRAM_CMD_RESET);
13601                 else
13602                         tg3_nvram_unlock(tp);
13603         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717) {
13604                 if (tr32(TG3_CPMU_STATUS) & TG3_CPMU_STATUS_PCIE_FUNC)
13605                         mac_offset = 0xcc;
13606         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
13607                 mac_offset = 0x10;
13608
13609         /* First try to get it from MAC address mailbox. */
13610         tg3_read_mem(tp, NIC_SRAM_MAC_ADDR_HIGH_MBOX, &hi);
13611         if ((hi >> 16) == 0x484b) {
13612                 dev->dev_addr[0] = (hi >>  8) & 0xff;
13613                 dev->dev_addr[1] = (hi >>  0) & 0xff;
13614
13615                 tg3_read_mem(tp, NIC_SRAM_MAC_ADDR_LOW_MBOX, &lo);
13616                 dev->dev_addr[2] = (lo >> 24) & 0xff;
13617                 dev->dev_addr[3] = (lo >> 16) & 0xff;
13618                 dev->dev_addr[4] = (lo >>  8) & 0xff;
13619                 dev->dev_addr[5] = (lo >>  0) & 0xff;
13620
13621                 /* Some old bootcode may report a 0 MAC address in SRAM */
13622                 addr_ok = is_valid_ether_addr(&dev->dev_addr[0]);
13623         }
13624         if (!addr_ok) {
13625                 /* Next, try NVRAM. */
13626                 if (!(tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) &&
13627                     !tg3_nvram_read_be32(tp, mac_offset + 0, &hi) &&
13628                     !tg3_nvram_read_be32(tp, mac_offset + 4, &lo)) {
13629                         memcpy(&dev->dev_addr[0], ((char *)&hi) + 2, 2);
13630                         memcpy(&dev->dev_addr[2], (char *)&lo, sizeof(lo));
13631                 }
13632                 /* Finally just fetch it out of the MAC control regs. */
13633                 else {
13634                         hi = tr32(MAC_ADDR_0_HIGH);
13635                         lo = tr32(MAC_ADDR_0_LOW);
13636
13637                         dev->dev_addr[5] = lo & 0xff;
13638                         dev->dev_addr[4] = (lo >> 8) & 0xff;
13639                         dev->dev_addr[3] = (lo >> 16) & 0xff;
13640                         dev->dev_addr[2] = (lo >> 24) & 0xff;
13641                         dev->dev_addr[1] = hi & 0xff;
13642                         dev->dev_addr[0] = (hi >> 8) & 0xff;
13643                 }
13644         }
13645
13646         if (!is_valid_ether_addr(&dev->dev_addr[0])) {
13647 #ifdef CONFIG_SPARC
13648                 if (!tg3_get_default_macaddr_sparc(tp))
13649                         return 0;
13650 #endif
13651                 return -EINVAL;
13652         }
13653         memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
13654         return 0;
13655 }
13656
13657 #define BOUNDARY_SINGLE_CACHELINE       1
13658 #define BOUNDARY_MULTI_CACHELINE        2
13659
13660 static u32 __devinit tg3_calc_dma_bndry(struct tg3 *tp, u32 val)
13661 {
13662         int cacheline_size;
13663         u8 byte;
13664         int goal;
13665
13666         pci_read_config_byte(tp->pdev, PCI_CACHE_LINE_SIZE, &byte);
13667         if (byte == 0)
13668                 cacheline_size = 1024;
13669         else
13670                 cacheline_size = (int) byte * 4;
13671
13672         /* On 5703 and later chips, the boundary bits have no
13673          * effect.
13674          */
13675         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
13676             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701 &&
13677             !(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS))
13678                 goto out;
13679
13680 #if defined(CONFIG_PPC64) || defined(CONFIG_IA64) || defined(CONFIG_PARISC)
13681         goal = BOUNDARY_MULTI_CACHELINE;
13682 #else
13683 #if defined(CONFIG_SPARC64) || defined(CONFIG_ALPHA)
13684         goal = BOUNDARY_SINGLE_CACHELINE;
13685 #else
13686         goal = 0;
13687 #endif
13688 #endif
13689
13690         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
13691             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765) {
13692                 val = goal ? 0 : DMA_RWCTRL_DIS_CACHE_ALIGNMENT;
13693                 goto out;
13694         }
13695
13696         if (!goal)
13697                 goto out;
13698
13699         /* PCI controllers on most RISC systems tend to disconnect
13700          * when a device tries to burst across a cache-line boundary.
13701          * Therefore, letting tg3 do so just wastes PCI bandwidth.
13702          *
13703          * Unfortunately, for PCI-E there are only limited
13704          * write-side controls for this, and thus for reads
13705          * we will still get the disconnects.  We'll also waste
13706          * these PCI cycles for both read and write for chips
13707          * other than 5700 and 5701 which do not implement the
13708          * boundary bits.
13709          */
13710         if ((tp->tg3_flags & TG3_FLAG_PCIX_MODE) &&
13711             !(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS)) {
13712                 switch (cacheline_size) {
13713                 case 16:
13714                 case 32:
13715                 case 64:
13716                 case 128:
13717                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
13718                                 val |= (DMA_RWCTRL_READ_BNDRY_128_PCIX |
13719                                         DMA_RWCTRL_WRITE_BNDRY_128_PCIX);
13720                         } else {
13721                                 val |= (DMA_RWCTRL_READ_BNDRY_384_PCIX |
13722                                         DMA_RWCTRL_WRITE_BNDRY_384_PCIX);
13723                         }
13724                         break;
13725
13726                 case 256:
13727                         val |= (DMA_RWCTRL_READ_BNDRY_256_PCIX |
13728                                 DMA_RWCTRL_WRITE_BNDRY_256_PCIX);
13729                         break;
13730
13731                 default:
13732                         val |= (DMA_RWCTRL_READ_BNDRY_384_PCIX |
13733                                 DMA_RWCTRL_WRITE_BNDRY_384_PCIX);
13734                         break;
13735                 }
13736         } else if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
13737                 switch (cacheline_size) {
13738                 case 16:
13739                 case 32:
13740                 case 64:
13741                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
13742                                 val &= ~DMA_RWCTRL_WRITE_BNDRY_DISAB_PCIE;
13743                                 val |= DMA_RWCTRL_WRITE_BNDRY_64_PCIE;
13744                                 break;
13745                         }
13746                         /* fallthrough */
13747                 case 128:
13748                 default:
13749                         val &= ~DMA_RWCTRL_WRITE_BNDRY_DISAB_PCIE;
13750                         val |= DMA_RWCTRL_WRITE_BNDRY_128_PCIE;
13751                         break;
13752                 }
13753         } else {
13754                 switch (cacheline_size) {
13755                 case 16:
13756                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
13757                                 val |= (DMA_RWCTRL_READ_BNDRY_16 |
13758                                         DMA_RWCTRL_WRITE_BNDRY_16);
13759                                 break;
13760                         }
13761                         /* fallthrough */
13762                 case 32:
13763                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
13764                                 val |= (DMA_RWCTRL_READ_BNDRY_32 |
13765                                         DMA_RWCTRL_WRITE_BNDRY_32);
13766                                 break;
13767                         }
13768                         /* fallthrough */
13769                 case 64:
13770                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
13771                                 val |= (DMA_RWCTRL_READ_BNDRY_64 |
13772                                         DMA_RWCTRL_WRITE_BNDRY_64);
13773                                 break;
13774                         }
13775                         /* fallthrough */
13776                 case 128:
13777                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
13778                                 val |= (DMA_RWCTRL_READ_BNDRY_128 |
13779                                         DMA_RWCTRL_WRITE_BNDRY_128);
13780                                 break;
13781                         }
13782                         /* fallthrough */
13783                 case 256:
13784                         val |= (DMA_RWCTRL_READ_BNDRY_256 |
13785                                 DMA_RWCTRL_WRITE_BNDRY_256);
13786                         break;
13787                 case 512:
13788                         val |= (DMA_RWCTRL_READ_BNDRY_512 |
13789                                 DMA_RWCTRL_WRITE_BNDRY_512);
13790                         break;
13791                 case 1024:
13792                 default:
13793                         val |= (DMA_RWCTRL_READ_BNDRY_1024 |
13794                                 DMA_RWCTRL_WRITE_BNDRY_1024);
13795                         break;
13796                 }
13797         }
13798
13799 out:
13800         return val;
13801 }
13802
13803 static int __devinit tg3_do_test_dma(struct tg3 *tp, u32 *buf, dma_addr_t buf_dma, int size, int to_device)
13804 {
13805         struct tg3_internal_buffer_desc test_desc;
13806         u32 sram_dma_descs;
13807         int i, ret;
13808
13809         sram_dma_descs = NIC_SRAM_DMA_DESC_POOL_BASE;
13810
13811         tw32(FTQ_RCVBD_COMP_FIFO_ENQDEQ, 0);
13812         tw32(FTQ_RCVDATA_COMP_FIFO_ENQDEQ, 0);
13813         tw32(RDMAC_STATUS, 0);
13814         tw32(WDMAC_STATUS, 0);
13815
13816         tw32(BUFMGR_MODE, 0);
13817         tw32(FTQ_RESET, 0);
13818
13819         test_desc.addr_hi = ((u64) buf_dma) >> 32;
13820         test_desc.addr_lo = buf_dma & 0xffffffff;
13821         test_desc.nic_mbuf = 0x00002100;
13822         test_desc.len = size;
13823
13824         /*
13825          * HP ZX1 was seeing test failures for 5701 cards running at 33Mhz
13826          * the *second* time the tg3 driver was getting loaded after an
13827          * initial scan.
13828          *
13829          * Broadcom tells me:
13830          *   ...the DMA engine is connected to the GRC block and a DMA
13831          *   reset may affect the GRC block in some unpredictable way...
13832          *   The behavior of resets to individual blocks has not been tested.
13833          *
13834          * Broadcom noted the GRC reset will also reset all sub-components.
13835          */
13836         if (to_device) {
13837                 test_desc.cqid_sqid = (13 << 8) | 2;
13838
13839                 tw32_f(RDMAC_MODE, RDMAC_MODE_ENABLE);
13840                 udelay(40);
13841         } else {
13842                 test_desc.cqid_sqid = (16 << 8) | 7;
13843
13844                 tw32_f(WDMAC_MODE, WDMAC_MODE_ENABLE);
13845                 udelay(40);
13846         }
13847         test_desc.flags = 0x00000005;
13848
13849         for (i = 0; i < (sizeof(test_desc) / sizeof(u32)); i++) {
13850                 u32 val;
13851
13852                 val = *(((u32 *)&test_desc) + i);
13853                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR,
13854                                        sram_dma_descs + (i * sizeof(u32)));
13855                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_DATA, val);
13856         }
13857         pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, 0);
13858
13859         if (to_device)
13860                 tw32(FTQ_DMA_HIGH_READ_FIFO_ENQDEQ, sram_dma_descs);
13861         else
13862                 tw32(FTQ_DMA_HIGH_WRITE_FIFO_ENQDEQ, sram_dma_descs);
13863
13864         ret = -ENODEV;
13865         for (i = 0; i < 40; i++) {
13866                 u32 val;
13867
13868                 if (to_device)
13869                         val = tr32(FTQ_RCVBD_COMP_FIFO_ENQDEQ);
13870                 else
13871                         val = tr32(FTQ_RCVDATA_COMP_FIFO_ENQDEQ);
13872                 if ((val & 0xffff) == sram_dma_descs) {
13873                         ret = 0;
13874                         break;
13875                 }
13876
13877                 udelay(100);
13878         }
13879
13880         return ret;
13881 }
13882
13883 #define TEST_BUFFER_SIZE        0x2000
13884
13885 static int __devinit tg3_test_dma(struct tg3 *tp)
13886 {
13887         dma_addr_t buf_dma;
13888         u32 *buf, saved_dma_rwctrl;
13889         int ret = 0;
13890
13891         buf = pci_alloc_consistent(tp->pdev, TEST_BUFFER_SIZE, &buf_dma);
13892         if (!buf) {
13893                 ret = -ENOMEM;
13894                 goto out_nofree;
13895         }
13896
13897         tp->dma_rwctrl = ((0x7 << DMA_RWCTRL_PCI_WRITE_CMD_SHIFT) |
13898                           (0x6 << DMA_RWCTRL_PCI_READ_CMD_SHIFT));
13899
13900         tp->dma_rwctrl = tg3_calc_dma_bndry(tp, tp->dma_rwctrl);
13901
13902         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
13903             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
13904                 goto out;
13905
13906         if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
13907                 /* DMA read watermark not used on PCIE */
13908                 tp->dma_rwctrl |= 0x00180000;
13909         } else if (!(tp->tg3_flags & TG3_FLAG_PCIX_MODE)) {
13910                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 ||
13911                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750)
13912                         tp->dma_rwctrl |= 0x003f0000;
13913                 else
13914                         tp->dma_rwctrl |= 0x003f000f;
13915         } else {
13916                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
13917                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
13918                         u32 ccval = (tr32(TG3PCI_CLOCK_CTRL) & 0x1f);
13919                         u32 read_water = 0x7;
13920
13921                         /* If the 5704 is behind the EPB bridge, we can
13922                          * do the less restrictive ONE_DMA workaround for
13923                          * better performance.
13924                          */
13925                         if ((tp->tg3_flags & TG3_FLAG_40BIT_DMA_BUG) &&
13926                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704)
13927                                 tp->dma_rwctrl |= 0x8000;
13928                         else if (ccval == 0x6 || ccval == 0x7)
13929                                 tp->dma_rwctrl |= DMA_RWCTRL_ONE_DMA;
13930
13931                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703)
13932                                 read_water = 4;
13933                         /* Set bit 23 to enable PCIX hw bug fix */
13934                         tp->dma_rwctrl |=
13935                                 (read_water << DMA_RWCTRL_READ_WATER_SHIFT) |
13936                                 (0x3 << DMA_RWCTRL_WRITE_WATER_SHIFT) |
13937                                 (1 << 23);
13938                 } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780) {
13939                         /* 5780 always in PCIX mode */
13940                         tp->dma_rwctrl |= 0x00144000;
13941                 } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714) {
13942                         /* 5714 always in PCIX mode */
13943                         tp->dma_rwctrl |= 0x00148000;
13944                 } else {
13945                         tp->dma_rwctrl |= 0x001b000f;
13946                 }
13947         }
13948
13949         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
13950             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704)
13951                 tp->dma_rwctrl &= 0xfffffff0;
13952
13953         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
13954             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
13955                 /* Remove this if it causes problems for some boards. */
13956                 tp->dma_rwctrl |= DMA_RWCTRL_USE_MEM_READ_MULT;
13957
13958                 /* On 5700/5701 chips, we need to set this bit.
13959                  * Otherwise the chip will issue cacheline transactions
13960                  * to streamable DMA memory with not all the byte
13961                  * enables turned on.  This is an error on several
13962                  * RISC PCI controllers, in particular sparc64.
13963                  *
13964                  * On 5703/5704 chips, this bit has been reassigned
13965                  * a different meaning.  In particular, it is used
13966                  * on those chips to enable a PCI-X workaround.
13967                  */
13968                 tp->dma_rwctrl |= DMA_RWCTRL_ASSERT_ALL_BE;
13969         }
13970
13971         tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
13972
13973 #if 0
13974         /* Unneeded, already done by tg3_get_invariants.  */
13975         tg3_switch_clocks(tp);
13976 #endif
13977
13978         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
13979             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701)
13980                 goto out;
13981
13982         /* It is best to perform DMA test with maximum write burst size
13983          * to expose the 5700/5701 write DMA bug.
13984          */
13985         saved_dma_rwctrl = tp->dma_rwctrl;
13986         tp->dma_rwctrl &= ~DMA_RWCTRL_WRITE_BNDRY_MASK;
13987         tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
13988
13989         while (1) {
13990                 u32 *p = buf, i;
13991
13992                 for (i = 0; i < TEST_BUFFER_SIZE / sizeof(u32); i++)
13993                         p[i] = i;
13994
13995                 /* Send the buffer to the chip. */
13996                 ret = tg3_do_test_dma(tp, buf, buf_dma, TEST_BUFFER_SIZE, 1);
13997                 if (ret) {
13998                         dev_err(&tp->pdev->dev,
13999                                 "%s: Buffer write failed. err = %d\n",
14000                                 __func__, ret);
14001                         break;
14002                 }
14003
14004 #if 0
14005                 /* validate data reached card RAM correctly. */
14006                 for (i = 0; i < TEST_BUFFER_SIZE / sizeof(u32); i++) {
14007                         u32 val;
14008                         tg3_read_mem(tp, 0x2100 + (i*4), &val);
14009                         if (le32_to_cpu(val) != p[i]) {
14010                                 dev_err(&tp->pdev->dev,
14011                                         "%s: Buffer corrupted on device! "
14012                                         "(%d != %d)\n", __func__, val, i);
14013                                 /* ret = -ENODEV here? */
14014                         }
14015                         p[i] = 0;
14016                 }
14017 #endif
14018                 /* Now read it back. */
14019                 ret = tg3_do_test_dma(tp, buf, buf_dma, TEST_BUFFER_SIZE, 0);
14020                 if (ret) {
14021                         dev_err(&tp->pdev->dev, "%s: Buffer read failed. "
14022                                 "err = %d\n", __func__, ret);
14023                         break;
14024                 }
14025
14026                 /* Verify it. */
14027                 for (i = 0; i < TEST_BUFFER_SIZE / sizeof(u32); i++) {
14028                         if (p[i] == i)
14029                                 continue;
14030
14031                         if ((tp->dma_rwctrl & DMA_RWCTRL_WRITE_BNDRY_MASK) !=
14032                             DMA_RWCTRL_WRITE_BNDRY_16) {
14033                                 tp->dma_rwctrl &= ~DMA_RWCTRL_WRITE_BNDRY_MASK;
14034                                 tp->dma_rwctrl |= DMA_RWCTRL_WRITE_BNDRY_16;
14035                                 tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
14036                                 break;
14037                         } else {
14038                                 dev_err(&tp->pdev->dev,
14039                                         "%s: Buffer corrupted on read back! "
14040                                         "(%d != %d)\n", __func__, p[i], i);
14041                                 ret = -ENODEV;
14042                                 goto out;
14043                         }
14044                 }
14045
14046                 if (i == (TEST_BUFFER_SIZE / sizeof(u32))) {
14047                         /* Success. */
14048                         ret = 0;
14049                         break;
14050                 }
14051         }
14052         if ((tp->dma_rwctrl & DMA_RWCTRL_WRITE_BNDRY_MASK) !=
14053             DMA_RWCTRL_WRITE_BNDRY_16) {
14054                 static struct pci_device_id dma_wait_state_chipsets[] = {
14055                         { PCI_DEVICE(PCI_VENDOR_ID_APPLE,
14056                                      PCI_DEVICE_ID_APPLE_UNI_N_PCI15) },
14057                         { },
14058                 };
14059
14060                 /* DMA test passed without adjusting DMA boundary,
14061                  * now look for chipsets that are known to expose the
14062                  * DMA bug without failing the test.
14063                  */
14064                 if (pci_dev_present(dma_wait_state_chipsets)) {
14065                         tp->dma_rwctrl &= ~DMA_RWCTRL_WRITE_BNDRY_MASK;
14066                         tp->dma_rwctrl |= DMA_RWCTRL_WRITE_BNDRY_16;
14067                 } else {
14068                         /* Safe to use the calculated DMA boundary. */
14069                         tp->dma_rwctrl = saved_dma_rwctrl;
14070                 }
14071
14072                 tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
14073         }
14074
14075 out:
14076         pci_free_consistent(tp->pdev, TEST_BUFFER_SIZE, buf, buf_dma);
14077 out_nofree:
14078         return ret;
14079 }
14080
14081 static void __devinit tg3_init_link_config(struct tg3 *tp)
14082 {
14083         tp->link_config.advertising =
14084                 (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full |
14085                  ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full |
14086                  ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full |
14087                  ADVERTISED_Autoneg | ADVERTISED_MII);
14088         tp->link_config.speed = SPEED_INVALID;
14089         tp->link_config.duplex = DUPLEX_INVALID;
14090         tp->link_config.autoneg = AUTONEG_ENABLE;
14091         tp->link_config.active_speed = SPEED_INVALID;
14092         tp->link_config.active_duplex = DUPLEX_INVALID;
14093         tp->link_config.phy_is_low_power = 0;
14094         tp->link_config.orig_speed = SPEED_INVALID;
14095         tp->link_config.orig_duplex = DUPLEX_INVALID;
14096         tp->link_config.orig_autoneg = AUTONEG_INVALID;
14097 }
14098
14099 static void __devinit tg3_init_bufmgr_config(struct tg3 *tp)
14100 {
14101         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
14102             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765) {
14103                 tp->bufmgr_config.mbuf_read_dma_low_water =
14104                         DEFAULT_MB_RDMA_LOW_WATER_5705;
14105                 tp->bufmgr_config.mbuf_mac_rx_low_water =
14106                         DEFAULT_MB_MACRX_LOW_WATER_57765;
14107                 tp->bufmgr_config.mbuf_high_water =
14108                         DEFAULT_MB_HIGH_WATER_57765;
14109
14110                 tp->bufmgr_config.mbuf_read_dma_low_water_jumbo =
14111                         DEFAULT_MB_RDMA_LOW_WATER_5705;
14112                 tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo =
14113                         DEFAULT_MB_MACRX_LOW_WATER_JUMBO_57765;
14114                 tp->bufmgr_config.mbuf_high_water_jumbo =
14115                         DEFAULT_MB_HIGH_WATER_JUMBO_57765;
14116         } else if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
14117                 tp->bufmgr_config.mbuf_read_dma_low_water =
14118                         DEFAULT_MB_RDMA_LOW_WATER_5705;
14119                 tp->bufmgr_config.mbuf_mac_rx_low_water =
14120                         DEFAULT_MB_MACRX_LOW_WATER_5705;
14121                 tp->bufmgr_config.mbuf_high_water =
14122                         DEFAULT_MB_HIGH_WATER_5705;
14123                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
14124                         tp->bufmgr_config.mbuf_mac_rx_low_water =
14125                                 DEFAULT_MB_MACRX_LOW_WATER_5906;
14126                         tp->bufmgr_config.mbuf_high_water =
14127                                 DEFAULT_MB_HIGH_WATER_5906;
14128                 }
14129
14130                 tp->bufmgr_config.mbuf_read_dma_low_water_jumbo =
14131                         DEFAULT_MB_RDMA_LOW_WATER_JUMBO_5780;
14132                 tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo =
14133                         DEFAULT_MB_MACRX_LOW_WATER_JUMBO_5780;
14134                 tp->bufmgr_config.mbuf_high_water_jumbo =
14135                         DEFAULT_MB_HIGH_WATER_JUMBO_5780;
14136         } else {
14137                 tp->bufmgr_config.mbuf_read_dma_low_water =
14138                         DEFAULT_MB_RDMA_LOW_WATER;
14139                 tp->bufmgr_config.mbuf_mac_rx_low_water =
14140                         DEFAULT_MB_MACRX_LOW_WATER;
14141                 tp->bufmgr_config.mbuf_high_water =
14142                         DEFAULT_MB_HIGH_WATER;
14143
14144                 tp->bufmgr_config.mbuf_read_dma_low_water_jumbo =
14145                         DEFAULT_MB_RDMA_LOW_WATER_JUMBO;
14146                 tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo =
14147                         DEFAULT_MB_MACRX_LOW_WATER_JUMBO;
14148                 tp->bufmgr_config.mbuf_high_water_jumbo =
14149                         DEFAULT_MB_HIGH_WATER_JUMBO;
14150         }
14151
14152         tp->bufmgr_config.dma_low_water = DEFAULT_DMA_LOW_WATER;
14153         tp->bufmgr_config.dma_high_water = DEFAULT_DMA_HIGH_WATER;
14154 }
14155
14156 static char * __devinit tg3_phy_string(struct tg3 *tp)
14157 {
14158         switch (tp->phy_id & TG3_PHY_ID_MASK) {
14159         case TG3_PHY_ID_BCM5400:        return "5400";
14160         case TG3_PHY_ID_BCM5401:        return "5401";
14161         case TG3_PHY_ID_BCM5411:        return "5411";
14162         case TG3_PHY_ID_BCM5701:        return "5701";
14163         case TG3_PHY_ID_BCM5703:        return "5703";
14164         case TG3_PHY_ID_BCM5704:        return "5704";
14165         case TG3_PHY_ID_BCM5705:        return "5705";
14166         case TG3_PHY_ID_BCM5750:        return "5750";
14167         case TG3_PHY_ID_BCM5752:        return "5752";
14168         case TG3_PHY_ID_BCM5714:        return "5714";
14169         case TG3_PHY_ID_BCM5780:        return "5780";
14170         case TG3_PHY_ID_BCM5755:        return "5755";
14171         case TG3_PHY_ID_BCM5787:        return "5787";
14172         case TG3_PHY_ID_BCM5784:        return "5784";
14173         case TG3_PHY_ID_BCM5756:        return "5722/5756";
14174         case TG3_PHY_ID_BCM5906:        return "5906";
14175         case TG3_PHY_ID_BCM5761:        return "5761";
14176         case TG3_PHY_ID_BCM5718C:       return "5718C";
14177         case TG3_PHY_ID_BCM5718S:       return "5718S";
14178         case TG3_PHY_ID_BCM57765:       return "57765";
14179         case TG3_PHY_ID_BCM8002:        return "8002/serdes";
14180         case 0:                 return "serdes";
14181         default:                return "unknown";
14182         }
14183 }
14184
14185 static char * __devinit tg3_bus_string(struct tg3 *tp, char *str)
14186 {
14187         if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
14188                 strcpy(str, "PCI Express");
14189                 return str;
14190         } else if (tp->tg3_flags & TG3_FLAG_PCIX_MODE) {
14191                 u32 clock_ctrl = tr32(TG3PCI_CLOCK_CTRL) & 0x1f;
14192
14193                 strcpy(str, "PCIX:");
14194
14195                 if ((clock_ctrl == 7) ||
14196                     ((tr32(GRC_MISC_CFG) & GRC_MISC_CFG_BOARD_ID_MASK) ==
14197                      GRC_MISC_CFG_BOARD_ID_5704CIOBE))
14198                         strcat(str, "133MHz");
14199                 else if (clock_ctrl == 0)
14200                         strcat(str, "33MHz");
14201                 else if (clock_ctrl == 2)
14202                         strcat(str, "50MHz");
14203                 else if (clock_ctrl == 4)
14204                         strcat(str, "66MHz");
14205                 else if (clock_ctrl == 6)
14206                         strcat(str, "100MHz");
14207         } else {
14208                 strcpy(str, "PCI:");
14209                 if (tp->tg3_flags & TG3_FLAG_PCI_HIGH_SPEED)
14210                         strcat(str, "66MHz");
14211                 else
14212                         strcat(str, "33MHz");
14213         }
14214         if (tp->tg3_flags & TG3_FLAG_PCI_32BIT)
14215                 strcat(str, ":32-bit");
14216         else
14217                 strcat(str, ":64-bit");
14218         return str;
14219 }
14220
14221 static struct pci_dev * __devinit tg3_find_peer(struct tg3 *tp)
14222 {
14223         struct pci_dev *peer;
14224         unsigned int func, devnr = tp->pdev->devfn & ~7;
14225
14226         for (func = 0; func < 8; func++) {
14227                 peer = pci_get_slot(tp->pdev->bus, devnr | func);
14228                 if (peer && peer != tp->pdev)
14229                         break;
14230                 pci_dev_put(peer);
14231         }
14232         /* 5704 can be configured in single-port mode, set peer to
14233          * tp->pdev in that case.
14234          */
14235         if (!peer) {
14236                 peer = tp->pdev;
14237                 return peer;
14238         }
14239
14240         /*
14241          * We don't need to keep the refcount elevated; there's no way
14242          * to remove one half of this device without removing the other
14243          */
14244         pci_dev_put(peer);
14245
14246         return peer;
14247 }
14248
14249 static void __devinit tg3_init_coal(struct tg3 *tp)
14250 {
14251         struct ethtool_coalesce *ec = &tp->coal;
14252
14253         memset(ec, 0, sizeof(*ec));
14254         ec->cmd = ETHTOOL_GCOALESCE;
14255         ec->rx_coalesce_usecs = LOW_RXCOL_TICKS;
14256         ec->tx_coalesce_usecs = LOW_TXCOL_TICKS;
14257         ec->rx_max_coalesced_frames = LOW_RXMAX_FRAMES;
14258         ec->tx_max_coalesced_frames = LOW_TXMAX_FRAMES;
14259         ec->rx_coalesce_usecs_irq = DEFAULT_RXCOAL_TICK_INT;
14260         ec->tx_coalesce_usecs_irq = DEFAULT_TXCOAL_TICK_INT;
14261         ec->rx_max_coalesced_frames_irq = DEFAULT_RXCOAL_MAXF_INT;
14262         ec->tx_max_coalesced_frames_irq = DEFAULT_TXCOAL_MAXF_INT;
14263         ec->stats_block_coalesce_usecs = DEFAULT_STAT_COAL_TICKS;
14264
14265         if (tp->coalesce_mode & (HOSTCC_MODE_CLRTICK_RXBD |
14266                                  HOSTCC_MODE_CLRTICK_TXBD)) {
14267                 ec->rx_coalesce_usecs = LOW_RXCOL_TICKS_CLRTCKS;
14268                 ec->rx_coalesce_usecs_irq = DEFAULT_RXCOAL_TICK_INT_CLRTCKS;
14269                 ec->tx_coalesce_usecs = LOW_TXCOL_TICKS_CLRTCKS;
14270                 ec->tx_coalesce_usecs_irq = DEFAULT_TXCOAL_TICK_INT_CLRTCKS;
14271         }
14272
14273         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
14274                 ec->rx_coalesce_usecs_irq = 0;
14275                 ec->tx_coalesce_usecs_irq = 0;
14276                 ec->stats_block_coalesce_usecs = 0;
14277         }
14278 }
14279
14280 static const struct net_device_ops tg3_netdev_ops = {
14281         .ndo_open               = tg3_open,
14282         .ndo_stop               = tg3_close,
14283         .ndo_start_xmit         = tg3_start_xmit,
14284         .ndo_get_stats          = tg3_get_stats,
14285         .ndo_validate_addr      = eth_validate_addr,
14286         .ndo_set_multicast_list = tg3_set_rx_mode,
14287         .ndo_set_mac_address    = tg3_set_mac_addr,
14288         .ndo_do_ioctl           = tg3_ioctl,
14289         .ndo_tx_timeout         = tg3_tx_timeout,
14290         .ndo_change_mtu         = tg3_change_mtu,
14291 #if TG3_VLAN_TAG_USED
14292         .ndo_vlan_rx_register   = tg3_vlan_rx_register,
14293 #endif
14294 #ifdef CONFIG_NET_POLL_CONTROLLER
14295         .ndo_poll_controller    = tg3_poll_controller,
14296 #endif
14297 };
14298
14299 static const struct net_device_ops tg3_netdev_ops_dma_bug = {
14300         .ndo_open               = tg3_open,
14301         .ndo_stop               = tg3_close,
14302         .ndo_start_xmit         = tg3_start_xmit_dma_bug,
14303         .ndo_get_stats          = tg3_get_stats,
14304         .ndo_validate_addr      = eth_validate_addr,
14305         .ndo_set_multicast_list = tg3_set_rx_mode,
14306         .ndo_set_mac_address    = tg3_set_mac_addr,
14307         .ndo_do_ioctl           = tg3_ioctl,
14308         .ndo_tx_timeout         = tg3_tx_timeout,
14309         .ndo_change_mtu         = tg3_change_mtu,
14310 #if TG3_VLAN_TAG_USED
14311         .ndo_vlan_rx_register   = tg3_vlan_rx_register,
14312 #endif
14313 #ifdef CONFIG_NET_POLL_CONTROLLER
14314         .ndo_poll_controller    = tg3_poll_controller,
14315 #endif
14316 };
14317
14318 static int __devinit tg3_init_one(struct pci_dev *pdev,
14319                                   const struct pci_device_id *ent)
14320 {
14321         struct net_device *dev;
14322         struct tg3 *tp;
14323         int i, err, pm_cap;
14324         u32 sndmbx, rcvmbx, intmbx;
14325         char str[40];
14326         u64 dma_mask, persist_dma_mask;
14327
14328         printk_once(KERN_INFO "%s\n", version);
14329
14330         err = pci_enable_device(pdev);
14331         if (err) {
14332                 dev_err(&pdev->dev, "Cannot enable PCI device, aborting\n");
14333                 return err;
14334         }
14335
14336         err = pci_request_regions(pdev, DRV_MODULE_NAME);
14337         if (err) {
14338                 dev_err(&pdev->dev, "Cannot obtain PCI resources, aborting\n");
14339                 goto err_out_disable_pdev;
14340         }
14341
14342         pci_set_master(pdev);
14343
14344         /* Find power-management capability. */
14345         pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM);
14346         if (pm_cap == 0) {
14347                 dev_err(&pdev->dev,
14348                         "Cannot find Power Management capability, aborting\n");
14349                 err = -EIO;
14350                 goto err_out_free_res;
14351         }
14352
14353         dev = alloc_etherdev_mq(sizeof(*tp), TG3_IRQ_MAX_VECS);
14354         if (!dev) {
14355                 dev_err(&pdev->dev, "Etherdev alloc failed, aborting\n");
14356                 err = -ENOMEM;
14357                 goto err_out_free_res;
14358         }
14359
14360         SET_NETDEV_DEV(dev, &pdev->dev);
14361
14362 #if TG3_VLAN_TAG_USED
14363         dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
14364 #endif
14365
14366         tp = netdev_priv(dev);
14367         tp->pdev = pdev;
14368         tp->dev = dev;
14369         tp->pm_cap = pm_cap;
14370         tp->rx_mode = TG3_DEF_RX_MODE;
14371         tp->tx_mode = TG3_DEF_TX_MODE;
14372
14373         if (tg3_debug > 0)
14374                 tp->msg_enable = tg3_debug;
14375         else
14376                 tp->msg_enable = TG3_DEF_MSG_ENABLE;
14377
14378         /* The word/byte swap controls here control register access byte
14379          * swapping.  DMA data byte swapping is controlled in the GRC_MODE
14380          * setting below.
14381          */
14382         tp->misc_host_ctrl =
14383                 MISC_HOST_CTRL_MASK_PCI_INT |
14384                 MISC_HOST_CTRL_WORD_SWAP |
14385                 MISC_HOST_CTRL_INDIR_ACCESS |
14386                 MISC_HOST_CTRL_PCISTATE_RW;
14387
14388         /* The NONFRM (non-frame) byte/word swap controls take effect
14389          * on descriptor entries, anything which isn't packet data.
14390          *
14391          * The StrongARM chips on the board (one for tx, one for rx)
14392          * are running in big-endian mode.
14393          */
14394         tp->grc_mode = (GRC_MODE_WSWAP_DATA | GRC_MODE_BSWAP_DATA |
14395                         GRC_MODE_WSWAP_NONFRM_DATA);
14396 #ifdef __BIG_ENDIAN
14397         tp->grc_mode |= GRC_MODE_BSWAP_NONFRM_DATA;
14398 #endif
14399         spin_lock_init(&tp->lock);
14400         spin_lock_init(&tp->indirect_lock);
14401         INIT_WORK(&tp->reset_task, tg3_reset_task);
14402
14403         tp->regs = pci_ioremap_bar(pdev, BAR_0);
14404         if (!tp->regs) {
14405                 dev_err(&pdev->dev, "Cannot map device registers, aborting\n");
14406                 err = -ENOMEM;
14407                 goto err_out_free_dev;
14408         }
14409
14410         tg3_init_link_config(tp);
14411
14412         tp->rx_pending = TG3_DEF_RX_RING_PENDING;
14413         tp->rx_jumbo_pending = TG3_DEF_RX_JUMBO_RING_PENDING;
14414
14415         dev->ethtool_ops = &tg3_ethtool_ops;
14416         dev->watchdog_timeo = TG3_TX_TIMEOUT;
14417         dev->irq = pdev->irq;
14418
14419         err = tg3_get_invariants(tp);
14420         if (err) {
14421                 dev_err(&pdev->dev,
14422                         "Problem fetching invariants of chip, aborting\n");
14423                 goto err_out_iounmap;
14424         }
14425
14426         if ((tp->tg3_flags3 & TG3_FLG3_5755_PLUS) &&
14427             tp->pci_chip_rev_id != CHIPREV_ID_5717_A0)
14428                 dev->netdev_ops = &tg3_netdev_ops;
14429         else
14430                 dev->netdev_ops = &tg3_netdev_ops_dma_bug;
14431
14432
14433         /* The EPB bridge inside 5714, 5715, and 5780 and any
14434          * device behind the EPB cannot support DMA addresses > 40-bit.
14435          * On 64-bit systems with IOMMU, use 40-bit dma_mask.
14436          * On 64-bit systems without IOMMU, use 64-bit dma_mask and
14437          * do DMA address check in tg3_start_xmit().
14438          */
14439         if (tp->tg3_flags2 & TG3_FLG2_IS_5788)
14440                 persist_dma_mask = dma_mask = DMA_BIT_MASK(32);
14441         else if (tp->tg3_flags & TG3_FLAG_40BIT_DMA_BUG) {
14442                 persist_dma_mask = dma_mask = DMA_BIT_MASK(40);
14443 #ifdef CONFIG_HIGHMEM
14444                 dma_mask = DMA_BIT_MASK(64);
14445 #endif
14446         } else
14447                 persist_dma_mask = dma_mask = DMA_BIT_MASK(64);
14448
14449         /* Configure DMA attributes. */
14450         if (dma_mask > DMA_BIT_MASK(32)) {
14451                 err = pci_set_dma_mask(pdev, dma_mask);
14452                 if (!err) {
14453                         dev->features |= NETIF_F_HIGHDMA;
14454                         err = pci_set_consistent_dma_mask(pdev,
14455                                                           persist_dma_mask);
14456                         if (err < 0) {
14457                                 dev_err(&pdev->dev, "Unable to obtain 64 bit "
14458                                         "DMA for consistent allocations\n");
14459                                 goto err_out_iounmap;
14460                         }
14461                 }
14462         }
14463         if (err || dma_mask == DMA_BIT_MASK(32)) {
14464                 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
14465                 if (err) {
14466                         dev_err(&pdev->dev,
14467                                 "No usable DMA configuration, aborting\n");
14468                         goto err_out_iounmap;
14469                 }
14470         }
14471
14472         tg3_init_bufmgr_config(tp);
14473
14474         /* Selectively allow TSO based on operating conditions */
14475         if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO) ||
14476             (tp->fw_needed && !(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)))
14477                 tp->tg3_flags2 |= TG3_FLG2_TSO_CAPABLE;
14478         else {
14479                 tp->tg3_flags2 &= ~(TG3_FLG2_TSO_CAPABLE | TG3_FLG2_TSO_BUG);
14480                 tp->fw_needed = NULL;
14481         }
14482
14483         if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0)
14484                 tp->fw_needed = FIRMWARE_TG3;
14485
14486         /* TSO is on by default on chips that support hardware TSO.
14487          * Firmware TSO on older chips gives lower performance, so it
14488          * is off by default, but can be enabled using ethtool.
14489          */
14490         if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO) &&
14491             (dev->features & NETIF_F_IP_CSUM))
14492                 dev->features |= NETIF_F_TSO;
14493
14494         if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_2) ||
14495             (tp->tg3_flags2 & TG3_FLG2_HW_TSO_3)) {
14496                 if (dev->features & NETIF_F_IPV6_CSUM)
14497                         dev->features |= NETIF_F_TSO6;
14498                 if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_3) ||
14499                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
14500                     (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
14501                      GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) ||
14502                         GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
14503                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
14504                         dev->features |= NETIF_F_TSO_ECN;
14505         }
14506
14507         if (tp->pci_chip_rev_id == CHIPREV_ID_5705_A1 &&
14508             !(tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) &&
14509             !(tr32(TG3PCI_PCISTATE) & PCISTATE_BUS_SPEED_HIGH)) {
14510                 tp->tg3_flags2 |= TG3_FLG2_MAX_RXPEND_64;
14511                 tp->rx_pending = 63;
14512         }
14513
14514         err = tg3_get_device_address(tp);
14515         if (err) {
14516                 dev_err(&pdev->dev,
14517                         "Could not obtain valid ethernet address, aborting\n");
14518                 goto err_out_iounmap;
14519         }
14520
14521         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
14522                 tp->aperegs = pci_ioremap_bar(pdev, BAR_2);
14523                 if (!tp->aperegs) {
14524                         dev_err(&pdev->dev,
14525                                 "Cannot map APE registers, aborting\n");
14526                         err = -ENOMEM;
14527                         goto err_out_iounmap;
14528                 }
14529
14530                 tg3_ape_lock_init(tp);
14531
14532                 if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF)
14533                         tg3_read_dash_ver(tp);
14534         }
14535
14536         /*
14537          * Reset chip in case UNDI or EFI driver did not shutdown
14538          * DMA self test will enable WDMAC and we'll see (spurious)
14539          * pending DMA on the PCI bus at that point.
14540          */
14541         if ((tr32(HOSTCC_MODE) & HOSTCC_MODE_ENABLE) ||
14542             (tr32(WDMAC_MODE) & WDMAC_MODE_ENABLE)) {
14543                 tw32(MEMARB_MODE, MEMARB_MODE_ENABLE);
14544                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
14545         }
14546
14547         err = tg3_test_dma(tp);
14548         if (err) {
14549                 dev_err(&pdev->dev, "DMA engine test failed, aborting\n");
14550                 goto err_out_apeunmap;
14551         }
14552
14553         /* flow control autonegotiation is default behavior */
14554         tp->tg3_flags |= TG3_FLAG_PAUSE_AUTONEG;
14555         tp->link_config.flowctrl = FLOW_CTRL_TX | FLOW_CTRL_RX;
14556
14557         intmbx = MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW;
14558         rcvmbx = MAILBOX_RCVRET_CON_IDX_0 + TG3_64BIT_REG_LOW;
14559         sndmbx = MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW;
14560         for (i = 0; i < TG3_IRQ_MAX_VECS; i++) {
14561                 struct tg3_napi *tnapi = &tp->napi[i];
14562
14563                 tnapi->tp = tp;
14564                 tnapi->tx_pending = TG3_DEF_TX_RING_PENDING;
14565
14566                 tnapi->int_mbox = intmbx;
14567                 if (i < 4)
14568                         intmbx += 0x8;
14569                 else
14570                         intmbx += 0x4;
14571
14572                 tnapi->consmbox = rcvmbx;
14573                 tnapi->prodmbox = sndmbx;
14574
14575                 if (i) {
14576                         tnapi->coal_now = HOSTCC_MODE_COAL_VEC1_NOW << (i - 1);
14577                         netif_napi_add(dev, &tnapi->napi, tg3_poll_msix, 64);
14578                 } else {
14579                         tnapi->coal_now = HOSTCC_MODE_NOW;
14580                         netif_napi_add(dev, &tnapi->napi, tg3_poll, 64);
14581                 }
14582
14583                 if (!(tp->tg3_flags & TG3_FLAG_SUPPORT_MSIX))
14584                         break;
14585
14586                 /*
14587                  * If we support MSIX, we'll be using RSS.  If we're using
14588                  * RSS, the first vector only handles link interrupts and the
14589                  * remaining vectors handle rx and tx interrupts.  Reuse the
14590                  * mailbox values for the next iteration.  The values we setup
14591                  * above are still useful for the single vectored mode.
14592                  */
14593                 if (!i)
14594                         continue;
14595
14596                 rcvmbx += 0x8;
14597
14598                 if (sndmbx & 0x4)
14599                         sndmbx -= 0x4;
14600                 else
14601                         sndmbx += 0xc;
14602         }
14603
14604         tg3_init_coal(tp);
14605
14606         pci_set_drvdata(pdev, dev);
14607
14608         err = register_netdev(dev);
14609         if (err) {
14610                 dev_err(&pdev->dev, "Cannot register net device, aborting\n");
14611                 goto err_out_apeunmap;
14612         }
14613
14614         netdev_info(dev, "Tigon3 [partno(%s) rev %04x] (%s) MAC address %pM\n",
14615                     tp->board_part_number,
14616                     tp->pci_chip_rev_id,
14617                     tg3_bus_string(tp, str),
14618                     dev->dev_addr);
14619
14620         if (tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED) {
14621                 struct phy_device *phydev;
14622                 phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
14623                 netdev_info(dev,
14624                             "attached PHY driver [%s] (mii_bus:phy_addr=%s)\n",
14625                             phydev->drv->name, dev_name(&phydev->dev));
14626         } else
14627                 netdev_info(dev, "attached PHY is %s (%s Ethernet) "
14628                             "(WireSpeed[%d])\n", tg3_phy_string(tp),
14629                             ((tp->tg3_flags & TG3_FLAG_10_100_ONLY) ? "10/100Base-TX" :
14630                              ((tp->tg3_flags2 & TG3_FLG2_ANY_SERDES) ? "1000Base-SX" :
14631                               "10/100/1000Base-T")),
14632                             (tp->tg3_flags2 & TG3_FLG2_NO_ETH_WIRE_SPEED) == 0);
14633
14634         netdev_info(dev, "RXcsums[%d] LinkChgREG[%d] MIirq[%d] ASF[%d] TSOcap[%d]\n",
14635                     (tp->tg3_flags & TG3_FLAG_RX_CHECKSUMS) != 0,
14636                     (tp->tg3_flags & TG3_FLAG_USE_LINKCHG_REG) != 0,
14637                     (tp->tg3_flags & TG3_FLAG_USE_MI_INTERRUPT) != 0,
14638                     (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) != 0,
14639                     (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) != 0);
14640         netdev_info(dev, "dma_rwctrl[%08x] dma_mask[%d-bit]\n",
14641                     tp->dma_rwctrl,
14642                     pdev->dma_mask == DMA_BIT_MASK(32) ? 32 :
14643                     ((u64)pdev->dma_mask) == DMA_BIT_MASK(40) ? 40 : 64);
14644
14645         return 0;
14646
14647 err_out_apeunmap:
14648         if (tp->aperegs) {
14649                 iounmap(tp->aperegs);
14650                 tp->aperegs = NULL;
14651         }
14652
14653 err_out_iounmap:
14654         if (tp->regs) {
14655                 iounmap(tp->regs);
14656                 tp->regs = NULL;
14657         }
14658
14659 err_out_free_dev:
14660         free_netdev(dev);
14661
14662 err_out_free_res:
14663         pci_release_regions(pdev);
14664
14665 err_out_disable_pdev:
14666         pci_disable_device(pdev);
14667         pci_set_drvdata(pdev, NULL);
14668         return err;
14669 }
14670
14671 static void __devexit tg3_remove_one(struct pci_dev *pdev)
14672 {
14673         struct net_device *dev = pci_get_drvdata(pdev);
14674
14675         if (dev) {
14676                 struct tg3 *tp = netdev_priv(dev);
14677
14678                 if (tp->fw)
14679                         release_firmware(tp->fw);
14680
14681                 flush_scheduled_work();
14682
14683                 if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
14684                         tg3_phy_fini(tp);
14685                         tg3_mdio_fini(tp);
14686                 }
14687
14688                 unregister_netdev(dev);
14689                 if (tp->aperegs) {
14690                         iounmap(tp->aperegs);
14691                         tp->aperegs = NULL;
14692                 }
14693                 if (tp->regs) {
14694                         iounmap(tp->regs);
14695                         tp->regs = NULL;
14696                 }
14697                 free_netdev(dev);
14698                 pci_release_regions(pdev);
14699                 pci_disable_device(pdev);
14700                 pci_set_drvdata(pdev, NULL);
14701         }
14702 }
14703
14704 static int tg3_suspend(struct pci_dev *pdev, pm_message_t state)
14705 {
14706         struct net_device *dev = pci_get_drvdata(pdev);
14707         struct tg3 *tp = netdev_priv(dev);
14708         pci_power_t target_state;
14709         int err;
14710
14711         /* PCI register 4 needs to be saved whether netif_running() or not.
14712          * MSI address and data need to be saved if using MSI and
14713          * netif_running().
14714          */
14715         pci_save_state(pdev);
14716
14717         if (!netif_running(dev))
14718                 return 0;
14719
14720         flush_scheduled_work();
14721         tg3_phy_stop(tp);
14722         tg3_netif_stop(tp);
14723
14724         del_timer_sync(&tp->timer);
14725
14726         tg3_full_lock(tp, 1);
14727         tg3_disable_ints(tp);
14728         tg3_full_unlock(tp);
14729
14730         netif_device_detach(dev);
14731
14732         tg3_full_lock(tp, 0);
14733         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
14734         tp->tg3_flags &= ~TG3_FLAG_INIT_COMPLETE;
14735         tg3_full_unlock(tp);
14736
14737         target_state = pdev->pm_cap ? pci_target_state(pdev) : PCI_D3hot;
14738
14739         err = tg3_set_power_state(tp, target_state);
14740         if (err) {
14741                 int err2;
14742
14743                 tg3_full_lock(tp, 0);
14744
14745                 tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
14746                 err2 = tg3_restart_hw(tp, 1);
14747                 if (err2)
14748                         goto out;
14749
14750                 tp->timer.expires = jiffies + tp->timer_offset;
14751                 add_timer(&tp->timer);
14752
14753                 netif_device_attach(dev);
14754                 tg3_netif_start(tp);
14755
14756 out:
14757                 tg3_full_unlock(tp);
14758
14759                 if (!err2)
14760                         tg3_phy_start(tp);
14761         }
14762
14763         return err;
14764 }
14765
14766 static int tg3_resume(struct pci_dev *pdev)
14767 {
14768         struct net_device *dev = pci_get_drvdata(pdev);
14769         struct tg3 *tp = netdev_priv(dev);
14770         int err;
14771
14772         pci_restore_state(tp->pdev);
14773
14774         if (!netif_running(dev))
14775                 return 0;
14776
14777         err = tg3_set_power_state(tp, PCI_D0);
14778         if (err)
14779                 return err;
14780
14781         netif_device_attach(dev);
14782
14783         tg3_full_lock(tp, 0);
14784
14785         tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
14786         err = tg3_restart_hw(tp, 1);
14787         if (err)
14788                 goto out;
14789
14790         tp->timer.expires = jiffies + tp->timer_offset;
14791         add_timer(&tp->timer);
14792
14793         tg3_netif_start(tp);
14794
14795 out:
14796         tg3_full_unlock(tp);
14797
14798         if (!err)
14799                 tg3_phy_start(tp);
14800
14801         return err;
14802 }
14803
14804 static struct pci_driver tg3_driver = {
14805         .name           = DRV_MODULE_NAME,
14806         .id_table       = tg3_pci_tbl,
14807         .probe          = tg3_init_one,
14808         .remove         = __devexit_p(tg3_remove_one),
14809         .suspend        = tg3_suspend,
14810         .resume         = tg3_resume
14811 };
14812
14813 static int __init tg3_init(void)
14814 {
14815         return pci_register_driver(&tg3_driver);
14816 }
14817
14818 static void __exit tg3_cleanup(void)
14819 {
14820         pci_unregister_driver(&tg3_driver);
14821 }
14822
14823 module_init(tg3_init);
14824 module_exit(tg3_cleanup);