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) 2005-2011 Broadcom Corporation.
   8  *
   9  * Firmware is:
  10  *      Derived from proprietary unpublished source code,
  11  *      Copyright (C) 2000-2003 Broadcom Corporation.
  12  *
  13  *      Permission is hereby granted for the distribution of this firmware
  14  *      data in hexadecimal or equivalent format, provided this copyright
  15  *      notice is accompanying it.
  16  */
  17
  18
  19 #include <linux/module.h>
  20 #include <linux/moduleparam.h>
  21 #include <linux/stringify.h>
  22 #include <linux/kernel.h>
  23 #include <linux/types.h>
  24 #include <linux/compiler.h>
  25 #include <linux/slab.h>
  26 #include <linux/delay.h>
  27 #include <linux/in.h>
  28 #include <linux/init.h>
  29 #include <linux/ioport.h>
  30 #include <linux/pci.h>
  31 #include <linux/netdevice.h>
  32 #include <linux/etherdevice.h>
  33 #include <linux/skbuff.h>
  34 #include <linux/ethtool.h>
  35 #include <linux/mdio.h>
  36 #include <linux/mii.h>
  37 #include <linux/phy.h>
  38 #include <linux/brcmphy.h>
  39 #include <linux/if_vlan.h>
  40 #include <linux/ip.h>
  41 #include <linux/tcp.h>
  42 #include <linux/workqueue.h>
  43 #include <linux/prefetch.h>
  44 #include <linux/dma-mapping.h>
  45 #include <linux/firmware.h>
  46
  47 #include <net/checksum.h>
  48 #include <net/ip.h>
  49
  50 #include <asm/system.h>
  51 #include <linux/io.h>
  52 #include <asm/byteorder.h>
  53 #include <linux/uaccess.h>
  54
  55 #ifdef CONFIG_SPARC
  56 #include <asm/idprom.h>
  57 #include <asm/prom.h>
  58 #endif
  59
  60 #define BAR_0   0
  61 #define BAR_2   2
  62
  63 #include "tg3.h"
  64
  65 #define DRV_MODULE_NAME         "tg3"
  66 #define TG3_MAJ_NUM                     3
  67 #define TG3_MIN_NUM                     117
  68 #define DRV_MODULE_VERSION      \
  69         __stringify(TG3_MAJ_NUM) "." __stringify(TG3_MIN_NUM)
  70 #define DRV_MODULE_RELDATE      "January 25, 2011"
  71
  72 #define TG3_DEF_MAC_MODE        0
  73 #define TG3_DEF_RX_MODE         0
  74 #define TG3_DEF_TX_MODE         0
  75 #define TG3_DEF_MSG_ENABLE        \
  76         (NETIF_MSG_DRV          | \
  77          NETIF_MSG_PROBE        | \
  78          NETIF_MSG_LINK         | \
  79          NETIF_MSG_TIMER        | \
  80          NETIF_MSG_IFDOWN       | \
  81          NETIF_MSG_IFUP         | \
  82          NETIF_MSG_RX_ERR       | \
  83          NETIF_MSG_TX_ERR)
  84
  85 /* length of time before we decide the hardware is borked,
  86  * and dev->tx_timeout() should be called to fix the problem
  87  */
  88 #define TG3_TX_TIMEOUT                  (5 * HZ)
  89
  90 /* hardware minimum and maximum for a single frame's data payload */
  91 #define TG3_MIN_MTU                     60
  92 #define TG3_MAX_MTU(tp) \
  93         ((tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) ? 9000 : 1500)
  94
  95 /* These numbers seem to be hard coded in the NIC firmware somehow.
  96  * You can't change the ring sizes, but you can change where you place
  97  * them in the NIC onboard memory.
  98  */
  99 #define TG3_RX_STD_RING_SIZE(tp) \
 100         ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 || \
 101           GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719) ? \
 102          RX_STD_MAX_SIZE_5717 : 512)
 103 #define TG3_DEF_RX_RING_PENDING         200
 104 #define TG3_RX_JMB_RING_SIZE(tp) \
 105         ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 || \
 106           GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719) ? \
 107          1024 : 256)
 108 #define TG3_DEF_RX_JUMBO_RING_PENDING   100
 109 #define TG3_RSS_INDIR_TBL_SIZE          128
 110
 111 /* Do not place this n-ring entries value into the tp struct itself,
 112  * we really want to expose these constants to GCC so that modulo et
 113  * al.  operations are done with shifts and masks instead of with
 114  * hw multiply/modulo instructions.  Another solution would be to
 115  * replace things like '% foo' with '& (foo - 1)'.
 116  */
 117
 118 #define TG3_TX_RING_SIZE                512
 119 #define TG3_DEF_TX_RING_PENDING         (TG3_TX_RING_SIZE - 1)
 120
 121 #define TG3_RX_STD_RING_BYTES(tp) \
 122         (sizeof(struct tg3_rx_buffer_desc) * TG3_RX_STD_RING_SIZE(tp))
 123 #define TG3_RX_JMB_RING_BYTES(tp) \
 124         (sizeof(struct tg3_ext_rx_buffer_desc) * TG3_RX_JMB_RING_SIZE(tp))
 125 #define TG3_RX_RCB_RING_BYTES(tp) \
 126         (sizeof(struct tg3_rx_buffer_desc) * (tp->rx_ret_ring_mask + 1))
 127 #define TG3_TX_RING_BYTES       (sizeof(struct tg3_tx_buffer_desc) * \
 128                                  TG3_TX_RING_SIZE)
 129 #define NEXT_TX(N)              (((N) + 1) & (TG3_TX_RING_SIZE - 1))
 130
 131 #define TG3_DMA_BYTE_ENAB               64
 132
 133 #define TG3_RX_STD_DMA_SZ               1536
 134 #define TG3_RX_JMB_DMA_SZ               9046
 135
 136 #define TG3_RX_DMA_TO_MAP_SZ(x)         ((x) + TG3_DMA_BYTE_ENAB)
 137
 138 #define TG3_RX_STD_MAP_SZ               TG3_RX_DMA_TO_MAP_SZ(TG3_RX_STD_DMA_SZ)
 139 #define TG3_RX_JMB_MAP_SZ               TG3_RX_DMA_TO_MAP_SZ(TG3_RX_JMB_DMA_SZ)
 140
 141 #define TG3_RX_STD_BUFF_RING_SIZE(tp) \
 142         (sizeof(struct ring_info) * TG3_RX_STD_RING_SIZE(tp))
 143
 144 #define TG3_RX_JMB_BUFF_RING_SIZE(tp) \
 145         (sizeof(struct ring_info) * TG3_RX_JMB_RING_SIZE(tp))
 146
 147 /* Due to a hardware bug, the 5701 can only DMA to memory addresses
 148  * that are at least dword aligned when used in PCIX mode.  The driver
 149  * works around this bug by double copying the packet.  This workaround
 150  * is built into the normal double copy length check for efficiency.
 151  *
 152  * However, the double copy is only necessary on those architectures
 153  * where unaligned memory accesses are inefficient.  For those architectures
 154  * where unaligned memory accesses incur little penalty, we can reintegrate
 155  * the 5701 in the normal rx path.  Doing so saves a device structure
 156  * dereference by hardcoding the double copy threshold in place.
 157  */
 158 #define TG3_RX_COPY_THRESHOLD           256
 159 #if NET_IP_ALIGN == 0 || defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
 160         #define TG3_RX_COPY_THRESH(tp)  TG3_RX_COPY_THRESHOLD
 161 #else
 162         #define TG3_RX_COPY_THRESH(tp)  ((tp)->rx_copy_thresh)
 163 #endif
 164
 165 /* minimum number of free TX descriptors required to wake up TX process */
 166 #define TG3_TX_WAKEUP_THRESH(tnapi)             ((tnapi)->tx_pending / 4)
 167
 168 #define TG3_RAW_IP_ALIGN 2
 169
 170 /* number of ETHTOOL_GSTATS u64's */
 171 #define TG3_NUM_STATS           (sizeof(struct tg3_ethtool_stats)/sizeof(u64))
 172
 173 #define TG3_NUM_TEST            6
 174
 175 #define TG3_FW_UPDATE_TIMEOUT_SEC       5
 176
 177 #define FIRMWARE_TG3            "tigon/tg3.bin"
 178 #define FIRMWARE_TG3TSO         "tigon/tg3_tso.bin"
 179 #define FIRMWARE_TG3TSO5        "tigon/tg3_tso5.bin"
 180
 181 static char version[] __devinitdata =
 182         DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")";
 183
 184 MODULE_AUTHOR("David S. Miller (davem@redhat.com) and Jeff Garzik (jgarzik@pobox.com)");
 185 MODULE_DESCRIPTION("Broadcom Tigon3 ethernet driver");
 186 MODULE_LICENSE("GPL");
 187 MODULE_VERSION(DRV_MODULE_VERSION);
 188 MODULE_FIRMWARE(FIRMWARE_TG3);
 189 MODULE_FIRMWARE(FIRMWARE_TG3TSO);
 190 MODULE_FIRMWARE(FIRMWARE_TG3TSO5);
 191
 192 static int tg3_debug = -1;      /* -1 == use TG3_DEF_MSG_ENABLE as value */
 193 module_param(tg3_debug, int, 0);
 194 MODULE_PARM_DESC(tg3_debug, "Tigon3 bitmapped debugging message enable value");
 195
 196 static DEFINE_PCI_DEVICE_TABLE(tg3_pci_tbl) = {
 197         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5700)},
 198         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5701)},
 199         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702)},
 200         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5703)},
 201         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5704)},
 202         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702FE)},
 203         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705)},
 204         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705_2)},
 205         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705M)},
 206         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705M_2)},
 207         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702X)},
 208         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5703X)},
 209         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5704S)},
 210         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702A3)},
 211         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5703A3)},
 212         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5782)},
 213         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5788)},
 214         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5789)},
 215         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5901)},
 216         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5901_2)},
 217         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5704S_2)},
 218         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705F)},
 219         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5721)},
 220         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5722)},
 221         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751)},
 222         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751M)},
 223         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751F)},
 224         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5752)},
 225         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5752M)},
 226         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753)},
 227         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753M)},
 228         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753F)},
 229         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5754)},
 230         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5754M)},
 231         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5755)},
 232         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5755M)},
 233         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5756)},
 234         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5786)},
 235         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5787)},
 236         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5787M)},
 237         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5787F)},
 238         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5714)},
 239         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5714S)},
 240         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5715)},
 241         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5715S)},
 242         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5780)},
 243         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5780S)},
 244         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5781)},
 245         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5906)},
 246         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5906M)},
 247         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5784)},
 248         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5764)},
 249         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5723)},
 250         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5761)},
 251         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5761E)},
 252         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5761S)},
 253         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5761SE)},
 254         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5785_G)},
 255         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5785_F)},
 256         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57780)},
 257         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57760)},
 258         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57790)},
 259         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57788)},
 260         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5717)},
 261         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5718)},
 262         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57781)},
 263         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57785)},
 264         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57761)},
 265         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57765)},
 266         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57791)},
 267         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57795)},
 268         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5719)},
 269         {PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_9DXX)},
 270         {PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_9MXX)},
 271         {PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1000)},
 272         {PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1001)},
 273         {PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1003)},
 274         {PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC9100)},
 275         {PCI_DEVICE(PCI_VENDOR_ID_APPLE, PCI_DEVICE_ID_APPLE_TIGON3)},
 276         {}
 277 };
 278
 279 MODULE_DEVICE_TABLE(pci, tg3_pci_tbl);
 280
 281 static const struct {
 282         const char string[ETH_GSTRING_LEN];
 283 } ethtool_stats_keys[TG3_NUM_STATS] = {
 284         { "rx_octets" },
 285         { "rx_fragments" },
 286         { "rx_ucast_packets" },
 287         { "rx_mcast_packets" },
 288         { "rx_bcast_packets" },
 289         { "rx_fcs_errors" },
 290         { "rx_align_errors" },
 291         { "rx_xon_pause_rcvd" },
 292         { "rx_xoff_pause_rcvd" },
 293         { "rx_mac_ctrl_rcvd" },
 294         { "rx_xoff_entered" },
 295         { "rx_frame_too_long_errors" },
 296         { "rx_jabbers" },
 297         { "rx_undersize_packets" },
 298         { "rx_in_length_errors" },
 299         { "rx_out_length_errors" },
 300         { "rx_64_or_less_octet_packets" },
 301         { "rx_65_to_127_octet_packets" },
 302         { "rx_128_to_255_octet_packets" },
 303         { "rx_256_to_511_octet_packets" },
 304         { "rx_512_to_1023_octet_packets" },
 305         { "rx_1024_to_1522_octet_packets" },
 306         { "rx_1523_to_2047_octet_packets" },
 307         { "rx_2048_to_4095_octet_packets" },
 308         { "rx_4096_to_8191_octet_packets" },
 309         { "rx_8192_to_9022_octet_packets" },
 310
 311         { "tx_octets" },
 312         { "tx_collisions" },
 313
 314         { "tx_xon_sent" },
 315         { "tx_xoff_sent" },
 316         { "tx_flow_control" },
 317         { "tx_mac_errors" },
 318         { "tx_single_collisions" },
 319         { "tx_mult_collisions" },
 320         { "tx_deferred" },
 321         { "tx_excessive_collisions" },
 322         { "tx_late_collisions" },
 323         { "tx_collide_2times" },
 324         { "tx_collide_3times" },
 325         { "tx_collide_4times" },
 326         { "tx_collide_5times" },
 327         { "tx_collide_6times" },
 328         { "tx_collide_7times" },
 329         { "tx_collide_8times" },
 330         { "tx_collide_9times" },
 331         { "tx_collide_10times" },
 332         { "tx_collide_11times" },
 333         { "tx_collide_12times" },
 334         { "tx_collide_13times" },
 335         { "tx_collide_14times" },
 336         { "tx_collide_15times" },
 337         { "tx_ucast_packets" },
 338         { "tx_mcast_packets" },
 339         { "tx_bcast_packets" },
 340         { "tx_carrier_sense_errors" },
 341         { "tx_discards" },
 342         { "tx_errors" },
 343
 344         { "dma_writeq_full" },
 345         { "dma_write_prioq_full" },
 346         { "rxbds_empty" },
 347         { "rx_discards" },
 348         { "rx_errors" },
 349         { "rx_threshold_hit" },
 350
 351         { "dma_readq_full" },
 352         { "dma_read_prioq_full" },
 353         { "tx_comp_queue_full" },
 354
 355         { "ring_set_send_prod_index" },
 356         { "ring_status_update" },
 357         { "nic_irqs" },
 358         { "nic_avoided_irqs" },
 359         { "nic_tx_threshold_hit" }
 360 };
 361
 362 static const struct {
 363         const char string[ETH_GSTRING_LEN];
 364 } ethtool_test_keys[TG3_NUM_TEST] = {
 365         { "nvram test     (online) " },
 366         { "link test      (online) " },
 367         { "register test  (offline)" },
 368         { "memory test    (offline)" },
 369         { "loopback test  (offline)" },
 370         { "interrupt test (offline)" },
 371 };
 372
 373 static void tg3_write32(struct tg3 *tp, u32 off, u32 val)
 374 {
 375         writel(val, tp->regs + off);
 376 }
 377
 378 static u32 tg3_read32(struct tg3 *tp, u32 off)
 379 {
 380         return readl(tp->regs + off);
 381 }
 382
 383 static void tg3_ape_write32(struct tg3 *tp, u32 off, u32 val)
 384 {
 385         writel(val, tp->aperegs + off);
 386 }
 387
 388 static u32 tg3_ape_read32(struct tg3 *tp, u32 off)
 389 {
 390         return readl(tp->aperegs + off);
 391 }
 392
 393 static void tg3_write_indirect_reg32(struct tg3 *tp, u32 off, u32 val)
 394 {
 395         unsigned long flags;
 396
 397         spin_lock_irqsave(&tp->indirect_lock, flags);
 398         pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off);
 399         pci_write_config_dword(tp->pdev, TG3PCI_REG_DATA, val);
 400         spin_unlock_irqrestore(&tp->indirect_lock, flags);
 401 }
 402
 403 static void tg3_write_flush_reg32(struct tg3 *tp, u32 off, u32 val)
 404 {
 405         writel(val, tp->regs + off);
 406         readl(tp->regs + off);
 407 }
 408
 409 static u32 tg3_read_indirect_reg32(struct tg3 *tp, u32 off)
 410 {
 411         unsigned long flags;
 412         u32 val;
 413
 414         spin_lock_irqsave(&tp->indirect_lock, flags);
 415         pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off);
 416         pci_read_config_dword(tp->pdev, TG3PCI_REG_DATA, &val);
 417         spin_unlock_irqrestore(&tp->indirect_lock, flags);
 418         return val;
 419 }
 420
 421 static void tg3_write_indirect_mbox(struct tg3 *tp, u32 off, u32 val)
 422 {
 423         unsigned long flags;
 424
 425         if (off == (MAILBOX_RCVRET_CON_IDX_0 + TG3_64BIT_REG_LOW)) {
 426                 pci_write_config_dword(tp->pdev, TG3PCI_RCV_RET_RING_CON_IDX +
 427                                        TG3_64BIT_REG_LOW, val);
 428                 return;
 429         }
 430         if (off == TG3_RX_STD_PROD_IDX_REG) {
 431                 pci_write_config_dword(tp->pdev, TG3PCI_STD_RING_PROD_IDX +
 432                                        TG3_64BIT_REG_LOW, val);
 433                 return;
 434         }
 435
 436         spin_lock_irqsave(&tp->indirect_lock, flags);
 437         pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off + 0x5600);
 438         pci_write_config_dword(tp->pdev, TG3PCI_REG_DATA, val);
 439         spin_unlock_irqrestore(&tp->indirect_lock, flags);
 440
 441         /* In indirect mode when disabling interrupts, we also need
 442          * to clear the interrupt bit in the GRC local ctrl register.
 443          */
 444         if ((off == (MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW)) &&
 445             (val == 0x1)) {
 446                 pci_write_config_dword(tp->pdev, TG3PCI_MISC_LOCAL_CTRL,
 447                                        tp->grc_local_ctrl|GRC_LCLCTRL_CLEARINT);
 448         }
 449 }
 450
 451 static u32 tg3_read_indirect_mbox(struct tg3 *tp, u32 off)
 452 {
 453         unsigned long flags;
 454         u32 val;
 455
 456         spin_lock_irqsave(&tp->indirect_lock, flags);
 457         pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off + 0x5600);
 458         pci_read_config_dword(tp->pdev, TG3PCI_REG_DATA, &val);
 459         spin_unlock_irqrestore(&tp->indirect_lock, flags);
 460         return val;
 461 }
 462
 463 /* usec_wait specifies the wait time in usec when writing to certain registers
 464  * where it is unsafe to read back the register without some delay.
 465  * GRC_LOCAL_CTRL is one example if the GPIOs are toggled to switch power.
 466  * TG3PCI_CLOCK_CTRL is another example if the clock frequencies are changed.
 467  */
 468 static void _tw32_flush(struct tg3 *tp, u32 off, u32 val, u32 usec_wait)
 469 {
 470         if ((tp->tg3_flags & TG3_FLAG_PCIX_TARGET_HWBUG) ||
 471             (tp->tg3_flags2 & TG3_FLG2_ICH_WORKAROUND))
 472                 /* Non-posted methods */
 473                 tp->write32(tp, off, val);
 474         else {
 475                 /* Posted method */
 476                 tg3_write32(tp, off, val);
 477                 if (usec_wait)
 478                         udelay(usec_wait);
 479                 tp->read32(tp, off);
 480         }
 481         /* Wait again after the read for the posted method to guarantee that
 482          * the wait time is met.
 483          */
 484         if (usec_wait)
 485                 udelay(usec_wait);
 486 }
 487
 488 static inline void tw32_mailbox_flush(struct tg3 *tp, u32 off, u32 val)
 489 {
 490         tp->write32_mbox(tp, off, val);
 491         if (!(tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER) &&
 492             !(tp->tg3_flags2 & TG3_FLG2_ICH_WORKAROUND))
 493                 tp->read32_mbox(tp, off);
 494 }
 495
 496 static void tg3_write32_tx_mbox(struct tg3 *tp, u32 off, u32 val)
 497 {
 498         void __iomem *mbox = tp->regs + off;
 499         writel(val, mbox);
 500         if (tp->tg3_flags & TG3_FLAG_TXD_MBOX_HWBUG)
 501                 writel(val, mbox);
 502         if (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)
 503                 readl(mbox);
 504 }
 505
 506 static u32 tg3_read32_mbox_5906(struct tg3 *tp, u32 off)
 507 {
 508         return readl(tp->regs + off + GRCMBOX_BASE);
 509 }
 510
 511 static void tg3_write32_mbox_5906(struct tg3 *tp, u32 off, u32 val)
 512 {
 513         writel(val, tp->regs + off + GRCMBOX_BASE);
 514 }
 515
 516 #define tw32_mailbox(reg, val)          tp->write32_mbox(tp, reg, val)
 517 #define tw32_mailbox_f(reg, val)        tw32_mailbox_flush(tp, (reg), (val))
 518 #define tw32_rx_mbox(reg, val)          tp->write32_rx_mbox(tp, reg, val)
 519 #define tw32_tx_mbox(reg, val)          tp->write32_tx_mbox(tp, reg, val)
 520 #define tr32_mailbox(reg)               tp->read32_mbox(tp, reg)
 521
 522 #define tw32(reg, val)                  tp->write32(tp, reg, val)
 523 #define tw32_f(reg, val)                _tw32_flush(tp, (reg), (val), 0)
 524 #define tw32_wait_f(reg, val, us)       _tw32_flush(tp, (reg), (val), (us))
 525 #define tr32(reg)                       tp->read32(tp, reg)
 526
 527 static void tg3_write_mem(struct tg3 *tp, u32 off, u32 val)
 528 {
 529         unsigned long flags;
 530
 531         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) &&
 532             (off >= NIC_SRAM_STATS_BLK) && (off < NIC_SRAM_TX_BUFFER_DESC))
 533                 return;
 534
 535         spin_lock_irqsave(&tp->indirect_lock, flags);
 536         if (tp->tg3_flags & TG3_FLAG_SRAM_USE_CONFIG) {
 537                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, off);
 538                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_DATA, val);
 539
 540                 /* Always leave this as zero. */
 541                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, 0);
 542         } else {
 543                 tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, off);
 544                 tw32_f(TG3PCI_MEM_WIN_DATA, val);
 545
 546                 /* Always leave this as zero. */
 547                 tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, 0);
 548         }
 549         spin_unlock_irqrestore(&tp->indirect_lock, flags);
 550 }
 551
 552 static void tg3_read_mem(struct tg3 *tp, u32 off, u32 *val)
 553 {
 554         unsigned long flags;
 555
 556         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) &&
 557             (off >= NIC_SRAM_STATS_BLK) && (off < NIC_SRAM_TX_BUFFER_DESC)) {
 558                 *val = 0;
 559                 return;
 560         }
 561
 562         spin_lock_irqsave(&tp->indirect_lock, flags);
 563         if (tp->tg3_flags & TG3_FLAG_SRAM_USE_CONFIG) {
 564                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, off);
 565                 pci_read_config_dword(tp->pdev, TG3PCI_MEM_WIN_DATA, val);
 566
 567                 /* Always leave this as zero. */
 568                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, 0);
 569         } else {
 570                 tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, off);
 571                 *val = tr32(TG3PCI_MEM_WIN_DATA);
 572
 573                 /* Always leave this as zero. */
 574                 tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, 0);
 575         }
 576         spin_unlock_irqrestore(&tp->indirect_lock, flags);
 577 }
 578
 579 static void tg3_ape_lock_init(struct tg3 *tp)
 580 {
 581         int i;
 582         u32 regbase;
 583
 584         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761)
 585                 regbase = TG3_APE_LOCK_GRANT;
 586         else
 587                 regbase = TG3_APE_PER_LOCK_GRANT;
 588
 589         /* Make sure the driver hasn't any stale locks. */
 590         for (i = 0; i < 8; i++)
 591                 tg3_ape_write32(tp, regbase + 4 * i, APE_LOCK_GRANT_DRIVER);
 592 }
 593
 594 static int tg3_ape_lock(struct tg3 *tp, int locknum)
 595 {
 596         int i, off;
 597         int ret = 0;
 598         u32 status, req, gnt;
 599
 600         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE))
 601                 return 0;
 602
 603         switch (locknum) {
 604         case TG3_APE_LOCK_GRC:
 605         case TG3_APE_LOCK_MEM:
 606                 break;
 607         default:
 608                 return -EINVAL;
 609         }
 610
 611         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761) {
 612                 req = TG3_APE_LOCK_REQ;
 613                 gnt = TG3_APE_LOCK_GRANT;
 614         } else {
 615                 req = TG3_APE_PER_LOCK_REQ;
 616                 gnt = TG3_APE_PER_LOCK_GRANT;
 617         }
 618
 619         off = 4 * locknum;
 620
 621         tg3_ape_write32(tp, req + off, APE_LOCK_REQ_DRIVER);
 622
 623         /* Wait for up to 1 millisecond to acquire lock. */
 624         for (i = 0; i < 100; i++) {
 625                 status = tg3_ape_read32(tp, gnt + off);
 626                 if (status == APE_LOCK_GRANT_DRIVER)
 627                         break;
 628                 udelay(10);
 629         }
 630
 631         if (status != APE_LOCK_GRANT_DRIVER) {
 632                 /* Revoke the lock request. */
 633                 tg3_ape_write32(tp, gnt + off,
 634                                 APE_LOCK_GRANT_DRIVER);
 635
 636                 ret = -EBUSY;
 637         }
 638
 639         return ret;
 640 }
 641
 642 static void tg3_ape_unlock(struct tg3 *tp, int locknum)
 643 {
 644         u32 gnt;
 645
 646         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE))
 647                 return;
 648
 649         switch (locknum) {
 650         case TG3_APE_LOCK_GRC:
 651         case TG3_APE_LOCK_MEM:
 652                 break;
 653         default:
 654                 return;
 655         }
 656
 657         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761)
 658                 gnt = TG3_APE_LOCK_GRANT;
 659         else
 660                 gnt = TG3_APE_PER_LOCK_GRANT;
 661
 662         tg3_ape_write32(tp, gnt + 4 * locknum, APE_LOCK_GRANT_DRIVER);
 663 }
 664
 665 static void tg3_disable_ints(struct tg3 *tp)
 666 {
 667         int i;
 668
 669         tw32(TG3PCI_MISC_HOST_CTRL,
 670              (tp->misc_host_ctrl | MISC_HOST_CTRL_MASK_PCI_INT));
 671         for (i = 0; i < tp->irq_max; i++)
 672                 tw32_mailbox_f(tp->napi[i].int_mbox, 0x00000001);
 673 }
 674
 675 static void tg3_enable_ints(struct tg3 *tp)
 676 {
 677         int i;
 678
 679         tp->irq_sync = 0;
 680         wmb();
 681
 682         tw32(TG3PCI_MISC_HOST_CTRL,
 683              (tp->misc_host_ctrl & ~MISC_HOST_CTRL_MASK_PCI_INT));
 684
 685         tp->coal_now = tp->coalesce_mode | HOSTCC_MODE_ENABLE;
 686         for (i = 0; i < tp->irq_cnt; i++) {
 687                 struct tg3_napi *tnapi = &tp->napi[i];
 688
 689                 tw32_mailbox_f(tnapi->int_mbox, tnapi->last_tag << 24);
 690                 if (tp->tg3_flags2 & TG3_FLG2_1SHOT_MSI)
 691                         tw32_mailbox_f(tnapi->int_mbox, tnapi->last_tag << 24);
 692
 693                 tp->coal_now |= tnapi->coal_now;
 694         }
 695
 696         /* Force an initial interrupt */
 697         if (!(tp->tg3_flags & TG3_FLAG_TAGGED_STATUS) &&
 698             (tp->napi[0].hw_status->status & SD_STATUS_UPDATED))
 699                 tw32(GRC_LOCAL_CTRL, tp->grc_local_ctrl | GRC_LCLCTRL_SETINT);
 700         else
 701                 tw32(HOSTCC_MODE, tp->coal_now);
 702
 703         tp->coal_now &= ~(tp->napi[0].coal_now | tp->napi[1].coal_now);
 704 }
 705
 706 static inline unsigned int tg3_has_work(struct tg3_napi *tnapi)
 707 {
 708         struct tg3 *tp = tnapi->tp;
 709         struct tg3_hw_status *sblk = tnapi->hw_status;
 710         unsigned int work_exists = 0;
 711
 712         /* check for phy events */
 713         if (!(tp->tg3_flags &
 714               (TG3_FLAG_USE_LINKCHG_REG |
 715                TG3_FLAG_POLL_SERDES))) {
 716                 if (sblk->status & SD_STATUS_LINK_CHG)
 717                         work_exists = 1;
 718         }
 719         /* check for RX/TX work to do */
 720         if (sblk->idx[0].tx_consumer != tnapi->tx_cons ||
 721             *(tnapi->rx_rcb_prod_idx) != tnapi->rx_rcb_ptr)
 722                 work_exists = 1;
 723
 724         return work_exists;
 725 }
 726
 727 /* tg3_int_reenable
 728  *  similar to tg3_enable_ints, but it accurately determines whether there
 729  *  is new work pending and can return without flushing the PIO write
 730  *  which reenables interrupts
 731  */
 732 static void tg3_int_reenable(struct tg3_napi *tnapi)
 733 {
 734         struct tg3 *tp = tnapi->tp;
 735
 736         tw32_mailbox(tnapi->int_mbox, tnapi->last_tag << 24);
 737         mmiowb();
 738
 739         /* When doing tagged status, this work check is unnecessary.
 740          * The last_tag we write above tells the chip which piece of
 741          * work we've completed.
 742          */
 743         if (!(tp->tg3_flags & TG3_FLAG_TAGGED_STATUS) &&
 744             tg3_has_work(tnapi))
 745                 tw32(HOSTCC_MODE, tp->coalesce_mode |
 746                      HOSTCC_MODE_ENABLE | tnapi->coal_now);
 747 }
 748
 749 static void tg3_switch_clocks(struct tg3 *tp)
 750 {
 751         u32 clock_ctrl;
 752         u32 orig_clock_ctrl;
 753
 754         if ((tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) ||
 755             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
 756                 return;
 757
 758         clock_ctrl = tr32(TG3PCI_CLOCK_CTRL);
 759
 760         orig_clock_ctrl = clock_ctrl;
 761         clock_ctrl &= (CLOCK_CTRL_FORCE_CLKRUN |
 762                        CLOCK_CTRL_CLKRUN_OENABLE |
 763                        0x1f);
 764         tp->pci_clock_ctrl = clock_ctrl;
 765
 766         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
 767                 if (orig_clock_ctrl & CLOCK_CTRL_625_CORE) {
 768                         tw32_wait_f(TG3PCI_CLOCK_CTRL,
 769                                     clock_ctrl | CLOCK_CTRL_625_CORE, 40);
 770                 }
 771         } else if ((orig_clock_ctrl & CLOCK_CTRL_44MHZ_CORE) != 0) {
 772                 tw32_wait_f(TG3PCI_CLOCK_CTRL,
 773                             clock_ctrl |
 774                             (CLOCK_CTRL_44MHZ_CORE | CLOCK_CTRL_ALTCLK),
 775                             40);
 776                 tw32_wait_f(TG3PCI_CLOCK_CTRL,
 777                             clock_ctrl | (CLOCK_CTRL_ALTCLK),
 778                             40);
 779         }
 780         tw32_wait_f(TG3PCI_CLOCK_CTRL, clock_ctrl, 40);
 781 }
 782
 783 #define PHY_BUSY_LOOPS  5000
 784
 785 static int tg3_readphy(struct tg3 *tp, int reg, u32 *val)
 786 {
 787         u32 frame_val;
 788         unsigned int loops;
 789         int ret;
 790
 791         if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
 792                 tw32_f(MAC_MI_MODE,
 793                      (tp->mi_mode & ~MAC_MI_MODE_AUTO_POLL));
 794                 udelay(80);
 795         }
 796
 797         *val = 0x0;
 798
 799         frame_val  = ((tp->phy_addr << MI_COM_PHY_ADDR_SHIFT) &
 800                       MI_COM_PHY_ADDR_MASK);
 801         frame_val |= ((reg << MI_COM_REG_ADDR_SHIFT) &
 802                       MI_COM_REG_ADDR_MASK);
 803         frame_val |= (MI_COM_CMD_READ | MI_COM_START);
 804
 805         tw32_f(MAC_MI_COM, frame_val);
 806
 807         loops = PHY_BUSY_LOOPS;
 808         while (loops != 0) {
 809                 udelay(10);
 810                 frame_val = tr32(MAC_MI_COM);
 811
 812                 if ((frame_val & MI_COM_BUSY) == 0) {
 813                         udelay(5);
 814                         frame_val = tr32(MAC_MI_COM);
 815                         break;
 816                 }
 817                 loops -= 1;
 818         }
 819
 820         ret = -EBUSY;
 821         if (loops != 0) {
 822                 *val = frame_val & MI_COM_DATA_MASK;
 823                 ret = 0;
 824         }
 825
 826         if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
 827                 tw32_f(MAC_MI_MODE, tp->mi_mode);
 828                 udelay(80);
 829         }
 830
 831         return ret;
 832 }
 833
 834 static int tg3_writephy(struct tg3 *tp, int reg, u32 val)
 835 {
 836         u32 frame_val;
 837         unsigned int loops;
 838         int ret;
 839
 840         if ((tp->phy_flags & TG3_PHYFLG_IS_FET) &&
 841             (reg == MII_TG3_CTRL || reg == MII_TG3_AUX_CTRL))
 842                 return 0;
 843
 844         if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
 845                 tw32_f(MAC_MI_MODE,
 846                      (tp->mi_mode & ~MAC_MI_MODE_AUTO_POLL));
 847                 udelay(80);
 848         }
 849
 850         frame_val  = ((tp->phy_addr << MI_COM_PHY_ADDR_SHIFT) &
 851                       MI_COM_PHY_ADDR_MASK);
 852         frame_val |= ((reg << MI_COM_REG_ADDR_SHIFT) &
 853                       MI_COM_REG_ADDR_MASK);
 854         frame_val |= (val & MI_COM_DATA_MASK);
 855         frame_val |= (MI_COM_CMD_WRITE | MI_COM_START);
 856
 857         tw32_f(MAC_MI_COM, frame_val);
 858
 859         loops = PHY_BUSY_LOOPS;
 860         while (loops != 0) {
 861                 udelay(10);
 862                 frame_val = tr32(MAC_MI_COM);
 863                 if ((frame_val & MI_COM_BUSY) == 0) {
 864                         udelay(5);
 865                         frame_val = tr32(MAC_MI_COM);
 866                         break;
 867                 }
 868                 loops -= 1;
 869         }
 870
 871         ret = -EBUSY;
 872         if (loops != 0)
 873                 ret = 0;
 874
 875         if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
 876                 tw32_f(MAC_MI_MODE, tp->mi_mode);
 877                 udelay(80);
 878         }
 879
 880         return ret;
 881 }
 882
 883 static int tg3_bmcr_reset(struct tg3 *tp)
 884 {
 885         u32 phy_control;
 886         int limit, err;
 887
 888         /* OK, reset it, and poll the BMCR_RESET bit until it
 889          * clears or we time out.
 890          */
 891         phy_control = BMCR_RESET;
 892         err = tg3_writephy(tp, MII_BMCR, phy_control);
 893         if (err != 0)
 894                 return -EBUSY;
 895
 896         limit = 5000;
 897         while (limit--) {
 898                 err = tg3_readphy(tp, MII_BMCR, &phy_control);
 899                 if (err != 0)
 900                         return -EBUSY;
 901
 902                 if ((phy_control & BMCR_RESET) == 0) {
 903                         udelay(40);
 904                         break;
 905                 }
 906                 udelay(10);
 907         }
 908         if (limit < 0)
 909                 return -EBUSY;
 910
 911         return 0;
 912 }
 913
 914 static int tg3_mdio_read(struct mii_bus *bp, int mii_id, int reg)
 915 {
 916         struct tg3 *tp = bp->priv;
 917         u32 val;
 918
 919         spin_lock_bh(&tp->lock);
 920
 921         if (tg3_readphy(tp, reg, &val))
 922                 val = -EIO;
 923
 924         spin_unlock_bh(&tp->lock);
 925
 926         return val;
 927 }
 928
 929 static int tg3_mdio_write(struct mii_bus *bp, int mii_id, int reg, u16 val)
 930 {
 931         struct tg3 *tp = bp->priv;
 932         u32 ret = 0;
 933
 934         spin_lock_bh(&tp->lock);
 935
 936         if (tg3_writephy(tp, reg, val))
 937                 ret = -EIO;
 938
 939         spin_unlock_bh(&tp->lock);
 940
 941         return ret;
 942 }
 943
 944 static int tg3_mdio_reset(struct mii_bus *bp)
 945 {
 946         return 0;
 947 }
 948
 949 static void tg3_mdio_config_5785(struct tg3 *tp)
 950 {
 951         u32 val;
 952         struct phy_device *phydev;
 953
 954         phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
 955         switch (phydev->drv->phy_id & phydev->drv->phy_id_mask) {
 956         case PHY_ID_BCM50610:
 957         case PHY_ID_BCM50610M:
 958                 val = MAC_PHYCFG2_50610_LED_MODES;
 959                 break;
 960         case PHY_ID_BCMAC131:
 961                 val = MAC_PHYCFG2_AC131_LED_MODES;
 962                 break;
 963         case PHY_ID_RTL8211C:
 964                 val = MAC_PHYCFG2_RTL8211C_LED_MODES;
 965                 break;
 966         case PHY_ID_RTL8201E:
 967                 val = MAC_PHYCFG2_RTL8201E_LED_MODES;
 968                 break;
 969         default:
 970                 return;
 971         }
 972
 973         if (phydev->interface != PHY_INTERFACE_MODE_RGMII) {
 974                 tw32(MAC_PHYCFG2, val);
 975
 976                 val = tr32(MAC_PHYCFG1);
 977                 val &= ~(MAC_PHYCFG1_RGMII_INT |
 978                          MAC_PHYCFG1_RXCLK_TO_MASK | MAC_PHYCFG1_TXCLK_TO_MASK);
 979                 val |= MAC_PHYCFG1_RXCLK_TIMEOUT | MAC_PHYCFG1_TXCLK_TIMEOUT;
 980                 tw32(MAC_PHYCFG1, val);
 981
 982                 return;
 983         }
 984
 985         if (!(tp->tg3_flags3 & TG3_FLG3_RGMII_INBAND_DISABLE))
 986                 val |= MAC_PHYCFG2_EMODE_MASK_MASK |
 987                        MAC_PHYCFG2_FMODE_MASK_MASK |
 988                        MAC_PHYCFG2_GMODE_MASK_MASK |
 989                        MAC_PHYCFG2_ACT_MASK_MASK   |
 990                        MAC_PHYCFG2_QUAL_MASK_MASK |
 991                        MAC_PHYCFG2_INBAND_ENABLE;
 992
 993         tw32(MAC_PHYCFG2, val);
 994
 995         val = tr32(MAC_PHYCFG1);
 996         val &= ~(MAC_PHYCFG1_RXCLK_TO_MASK | MAC_PHYCFG1_TXCLK_TO_MASK |
 997                  MAC_PHYCFG1_RGMII_EXT_RX_DEC | MAC_PHYCFG1_RGMII_SND_STAT_EN);
 998         if (!(tp->tg3_flags3 & TG3_FLG3_RGMII_INBAND_DISABLE)) {
 999                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_RX_EN)
1000                         val |= MAC_PHYCFG1_RGMII_EXT_RX_DEC;
1001                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_TX_EN)
1002                         val |= MAC_PHYCFG1_RGMII_SND_STAT_EN;
1003         }
1004         val |= MAC_PHYCFG1_RXCLK_TIMEOUT | MAC_PHYCFG1_TXCLK_TIMEOUT |
1005                MAC_PHYCFG1_RGMII_INT | MAC_PHYCFG1_TXC_DRV;
1006         tw32(MAC_PHYCFG1, val);
1007
1008         val = tr32(MAC_EXT_RGMII_MODE);
1009         val &= ~(MAC_RGMII_MODE_RX_INT_B |
1010                  MAC_RGMII_MODE_RX_QUALITY |
1011                  MAC_RGMII_MODE_RX_ACTIVITY |
1012                  MAC_RGMII_MODE_RX_ENG_DET |
1013                  MAC_RGMII_MODE_TX_ENABLE |
1014                  MAC_RGMII_MODE_TX_LOWPWR |
1015                  MAC_RGMII_MODE_TX_RESET);
1016         if (!(tp->tg3_flags3 & TG3_FLG3_RGMII_INBAND_DISABLE)) {
1017                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_RX_EN)
1018                         val |= MAC_RGMII_MODE_RX_INT_B |
1019                                MAC_RGMII_MODE_RX_QUALITY |
1020                                MAC_RGMII_MODE_RX_ACTIVITY |
1021                                MAC_RGMII_MODE_RX_ENG_DET;
1022                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_TX_EN)
1023                         val |= MAC_RGMII_MODE_TX_ENABLE |
1024                                MAC_RGMII_MODE_TX_LOWPWR |
1025                                MAC_RGMII_MODE_TX_RESET;
1026         }
1027         tw32(MAC_EXT_RGMII_MODE, val);
1028 }
1029
1030 static void tg3_mdio_start(struct tg3 *tp)
1031 {
1032         tp->mi_mode &= ~MAC_MI_MODE_AUTO_POLL;
1033         tw32_f(MAC_MI_MODE, tp->mi_mode);
1034         udelay(80);
1035
1036         if ((tp->tg3_flags3 & TG3_FLG3_MDIOBUS_INITED) &&
1037             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
1038                 tg3_mdio_config_5785(tp);
1039 }
1040
1041 static int tg3_mdio_init(struct tg3 *tp)
1042 {
1043         int i;
1044         u32 reg;
1045         struct phy_device *phydev;
1046
1047         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
1048             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719) {
1049                 u32 is_serdes;
1050
1051                 tp->phy_addr = PCI_FUNC(tp->pdev->devfn) + 1;
1052
1053                 if (tp->pci_chip_rev_id != CHIPREV_ID_5717_A0)
1054                         is_serdes = tr32(SG_DIG_STATUS) & SG_DIG_IS_SERDES;
1055                 else
1056                         is_serdes = tr32(TG3_CPMU_PHY_STRAP) &
1057                                     TG3_CPMU_PHY_STRAP_IS_SERDES;
1058                 if (is_serdes)
1059                         tp->phy_addr += 7;
1060         } else
1061                 tp->phy_addr = TG3_PHY_MII_ADDR;
1062
1063         tg3_mdio_start(tp);
1064
1065         if (!(tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) ||
1066             (tp->tg3_flags3 & TG3_FLG3_MDIOBUS_INITED))
1067                 return 0;
1068
1069         tp->mdio_bus = mdiobus_alloc();
1070         if (tp->mdio_bus == NULL)
1071                 return -ENOMEM;
1072
1073         tp->mdio_bus->name     = "tg3 mdio bus";
1074         snprintf(tp->mdio_bus->id, MII_BUS_ID_SIZE, "%x",
1075                  (tp->pdev->bus->number << 8) | tp->pdev->devfn);
1076         tp->mdio_bus->priv     = tp;
1077         tp->mdio_bus->parent   = &tp->pdev->dev;
1078         tp->mdio_bus->read     = &tg3_mdio_read;
1079         tp->mdio_bus->write    = &tg3_mdio_write;
1080         tp->mdio_bus->reset    = &tg3_mdio_reset;
1081         tp->mdio_bus->phy_mask = ~(1 << TG3_PHY_MII_ADDR);
1082         tp->mdio_bus->irq      = &tp->mdio_irq[0];
1083
1084         for (i = 0; i < PHY_MAX_ADDR; i++)
1085                 tp->mdio_bus->irq[i] = PHY_POLL;
1086
1087         /* The bus registration will look for all the PHYs on the mdio bus.
1088          * Unfortunately, it does not ensure the PHY is powered up before
1089          * accessing the PHY ID registers.  A chip reset is the
1090          * quickest way to bring the device back to an operational state..
1091          */
1092         if (tg3_readphy(tp, MII_BMCR, &reg) || (reg & BMCR_PDOWN))
1093                 tg3_bmcr_reset(tp);
1094
1095         i = mdiobus_register(tp->mdio_bus);
1096         if (i) {
1097                 dev_warn(&tp->pdev->dev, "mdiobus_reg failed (0x%x)\n", i);
1098                 mdiobus_free(tp->mdio_bus);
1099                 return i;
1100         }
1101
1102         phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
1103
1104         if (!phydev || !phydev->drv) {
1105                 dev_warn(&tp->pdev->dev, "No PHY devices\n");
1106                 mdiobus_unregister(tp->mdio_bus);
1107                 mdiobus_free(tp->mdio_bus);
1108                 return -ENODEV;
1109         }
1110
1111         switch (phydev->drv->phy_id & phydev->drv->phy_id_mask) {
1112         case PHY_ID_BCM57780:
1113                 phydev->interface = PHY_INTERFACE_MODE_GMII;
1114                 phydev->dev_flags |= PHY_BRCM_AUTO_PWRDWN_ENABLE;
1115                 break;
1116         case PHY_ID_BCM50610:
1117         case PHY_ID_BCM50610M:
1118                 phydev->dev_flags |= PHY_BRCM_CLEAR_RGMII_MODE |
1119                                      PHY_BRCM_RX_REFCLK_UNUSED |
1120                                      PHY_BRCM_DIS_TXCRXC_NOENRGY |
1121                                      PHY_BRCM_AUTO_PWRDWN_ENABLE;
1122                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_INBAND_DISABLE)
1123                         phydev->dev_flags |= PHY_BRCM_STD_IBND_DISABLE;
1124                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_RX_EN)
1125                         phydev->dev_flags |= PHY_BRCM_EXT_IBND_RX_ENABLE;
1126                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_TX_EN)
1127                         phydev->dev_flags |= PHY_BRCM_EXT_IBND_TX_ENABLE;
1128                 /* fallthru */
1129         case PHY_ID_RTL8211C:
1130                 phydev->interface = PHY_INTERFACE_MODE_RGMII;
1131                 break;
1132         case PHY_ID_RTL8201E:
1133         case PHY_ID_BCMAC131:
1134                 phydev->interface = PHY_INTERFACE_MODE_MII;
1135                 phydev->dev_flags |= PHY_BRCM_AUTO_PWRDWN_ENABLE;
1136                 tp->phy_flags |= TG3_PHYFLG_IS_FET;
1137                 break;
1138         }
1139
1140         tp->tg3_flags3 |= TG3_FLG3_MDIOBUS_INITED;
1141
1142         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
1143                 tg3_mdio_config_5785(tp);
1144
1145         return 0;
1146 }
1147
1148 static void tg3_mdio_fini(struct tg3 *tp)
1149 {
1150         if (tp->tg3_flags3 & TG3_FLG3_MDIOBUS_INITED) {
1151                 tp->tg3_flags3 &= ~TG3_FLG3_MDIOBUS_INITED;
1152                 mdiobus_unregister(tp->mdio_bus);
1153                 mdiobus_free(tp->mdio_bus);
1154         }
1155 }
1156
1157 static int tg3_phy_cl45_write(struct tg3 *tp, u32 devad, u32 addr, u32 val)
1158 {
1159         int err;
1160
1161         err = tg3_writephy(tp, MII_TG3_MMD_CTRL, devad);
1162         if (err)
1163                 goto done;
1164
1165         err = tg3_writephy(tp, MII_TG3_MMD_ADDRESS, addr);
1166         if (err)
1167                 goto done;
1168
1169         err = tg3_writephy(tp, MII_TG3_MMD_CTRL,
1170                            MII_TG3_MMD_CTRL_DATA_NOINC | devad);
1171         if (err)
1172                 goto done;
1173
1174         err = tg3_writephy(tp, MII_TG3_MMD_ADDRESS, val);
1175
1176 done:
1177         return err;
1178 }
1179
1180 static int tg3_phy_cl45_read(struct tg3 *tp, u32 devad, u32 addr, u32 *val)
1181 {
1182         int err;
1183
1184         err = tg3_writephy(tp, MII_TG3_MMD_CTRL, devad);
1185         if (err)
1186                 goto done;
1187
1188         err = tg3_writephy(tp, MII_TG3_MMD_ADDRESS, addr);
1189         if (err)
1190                 goto done;
1191
1192         err = tg3_writephy(tp, MII_TG3_MMD_CTRL,
1193                            MII_TG3_MMD_CTRL_DATA_NOINC | devad);
1194         if (err)
1195                 goto done;
1196
1197         err = tg3_readphy(tp, MII_TG3_MMD_ADDRESS, val);
1198
1199 done:
1200         return err;
1201 }
1202
1203 /* tp->lock is held. */
1204 static inline void tg3_generate_fw_event(struct tg3 *tp)
1205 {
1206         u32 val;
1207
1208         val = tr32(GRC_RX_CPU_EVENT);
1209         val |= GRC_RX_CPU_DRIVER_EVENT;
1210         tw32_f(GRC_RX_CPU_EVENT, val);
1211
1212         tp->last_event_jiffies = jiffies;
1213 }
1214
1215 #define TG3_FW_EVENT_TIMEOUT_USEC 2500
1216
1217 /* tp->lock is held. */
1218 static void tg3_wait_for_event_ack(struct tg3 *tp)
1219 {
1220         int i;
1221         unsigned int delay_cnt;
1222         long time_remain;
1223
1224         /* If enough time has passed, no wait is necessary. */
1225         time_remain = (long)(tp->last_event_jiffies + 1 +
1226                       usecs_to_jiffies(TG3_FW_EVENT_TIMEOUT_USEC)) -
1227                       (long)jiffies;
1228         if (time_remain < 0)
1229                 return;
1230
1231         /* Check if we can shorten the wait time. */
1232         delay_cnt = jiffies_to_usecs(time_remain);
1233         if (delay_cnt > TG3_FW_EVENT_TIMEOUT_USEC)
1234                 delay_cnt = TG3_FW_EVENT_TIMEOUT_USEC;
1235         delay_cnt = (delay_cnt >> 3) + 1;
1236
1237         for (i = 0; i < delay_cnt; i++) {
1238                 if (!(tr32(GRC_RX_CPU_EVENT) & GRC_RX_CPU_DRIVER_EVENT))
1239                         break;
1240                 udelay(8);
1241         }
1242 }
1243
1244 /* tp->lock is held. */
1245 static void tg3_ump_link_report(struct tg3 *tp)
1246 {
1247         u32 reg;
1248         u32 val;
1249
1250         if (!(tp->tg3_flags2 & TG3_FLG2_5780_CLASS) ||
1251             !(tp->tg3_flags  & TG3_FLAG_ENABLE_ASF))
1252                 return;
1253
1254         tg3_wait_for_event_ack(tp);
1255
1256         tg3_write_mem(tp, NIC_SRAM_FW_CMD_MBOX, FWCMD_NICDRV_LINK_UPDATE);
1257
1258         tg3_write_mem(tp, NIC_SRAM_FW_CMD_LEN_MBOX, 14);
1259
1260         val = 0;
1261         if (!tg3_readphy(tp, MII_BMCR, &reg))
1262                 val = reg << 16;
1263         if (!tg3_readphy(tp, MII_BMSR, &reg))
1264                 val |= (reg & 0xffff);
1265         tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX, val);
1266
1267         val = 0;
1268         if (!tg3_readphy(tp, MII_ADVERTISE, &reg))
1269                 val = reg << 16;
1270         if (!tg3_readphy(tp, MII_LPA, &reg))
1271                 val |= (reg & 0xffff);
1272         tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 4, val);
1273
1274         val = 0;
1275         if (!(tp->phy_flags & TG3_PHYFLG_MII_SERDES)) {
1276                 if (!tg3_readphy(tp, MII_CTRL1000, &reg))
1277                         val = reg << 16;
1278                 if (!tg3_readphy(tp, MII_STAT1000, &reg))
1279                         val |= (reg & 0xffff);
1280         }
1281         tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 8, val);
1282
1283         if (!tg3_readphy(tp, MII_PHYADDR, &reg))
1284                 val = reg << 16;
1285         else
1286                 val = 0;
1287         tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 12, val);
1288
1289         tg3_generate_fw_event(tp);
1290 }
1291
1292 static void tg3_link_report(struct tg3 *tp)
1293 {
1294         if (!netif_carrier_ok(tp->dev)) {
1295                 netif_info(tp, link, tp->dev, "Link is down\n");
1296                 tg3_ump_link_report(tp);
1297         } else if (netif_msg_link(tp)) {
1298                 netdev_info(tp->dev, "Link is up at %d Mbps, %s duplex\n",
1299                             (tp->link_config.active_speed == SPEED_1000 ?
1300                              1000 :
1301                              (tp->link_config.active_speed == SPEED_100 ?
1302                               100 : 10)),
1303                             (tp->link_config.active_duplex == DUPLEX_FULL ?
1304                              "full" : "half"));
1305
1306                 netdev_info(tp->dev, "Flow control is %s for TX and %s for RX\n",
1307                             (tp->link_config.active_flowctrl & FLOW_CTRL_TX) ?
1308                             "on" : "off",
1309                             (tp->link_config.active_flowctrl & FLOW_CTRL_RX) ?
1310                             "on" : "off");
1311                 tg3_ump_link_report(tp);
1312         }
1313 }
1314
1315 static u16 tg3_advert_flowctrl_1000T(u8 flow_ctrl)
1316 {
1317         u16 miireg;
1318
1319         if ((flow_ctrl & FLOW_CTRL_TX) && (flow_ctrl & FLOW_CTRL_RX))
1320                 miireg = ADVERTISE_PAUSE_CAP;
1321         else if (flow_ctrl & FLOW_CTRL_TX)
1322                 miireg = ADVERTISE_PAUSE_ASYM;
1323         else if (flow_ctrl & FLOW_CTRL_RX)
1324                 miireg = ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
1325         else
1326                 miireg = 0;
1327
1328         return miireg;
1329 }
1330
1331 static u16 tg3_advert_flowctrl_1000X(u8 flow_ctrl)
1332 {
1333         u16 miireg;
1334
1335         if ((flow_ctrl & FLOW_CTRL_TX) && (flow_ctrl & FLOW_CTRL_RX))
1336                 miireg = ADVERTISE_1000XPAUSE;
1337         else if (flow_ctrl & FLOW_CTRL_TX)
1338                 miireg = ADVERTISE_1000XPSE_ASYM;
1339         else if (flow_ctrl & FLOW_CTRL_RX)
1340                 miireg = ADVERTISE_1000XPAUSE | ADVERTISE_1000XPSE_ASYM;
1341         else
1342                 miireg = 0;
1343
1344         return miireg;
1345 }
1346
1347 static u8 tg3_resolve_flowctrl_1000X(u16 lcladv, u16 rmtadv)
1348 {
1349         u8 cap = 0;
1350
1351         if (lcladv & ADVERTISE_1000XPAUSE) {
1352                 if (lcladv & ADVERTISE_1000XPSE_ASYM) {
1353                         if (rmtadv & LPA_1000XPAUSE)
1354                                 cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
1355                         else if (rmtadv & LPA_1000XPAUSE_ASYM)
1356                                 cap = FLOW_CTRL_RX;
1357                 } else {
1358                         if (rmtadv & LPA_1000XPAUSE)
1359                                 cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
1360                 }
1361         } else if (lcladv & ADVERTISE_1000XPSE_ASYM) {
1362                 if ((rmtadv & LPA_1000XPAUSE) && (rmtadv & LPA_1000XPAUSE_ASYM))
1363                         cap = FLOW_CTRL_TX;
1364         }
1365
1366         return cap;
1367 }
1368
1369 static void tg3_setup_flow_control(struct tg3 *tp, u32 lcladv, u32 rmtadv)
1370 {
1371         u8 autoneg;
1372         u8 flowctrl = 0;
1373         u32 old_rx_mode = tp->rx_mode;
1374         u32 old_tx_mode = tp->tx_mode;
1375
1376         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB)
1377                 autoneg = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR]->autoneg;
1378         else
1379                 autoneg = tp->link_config.autoneg;
1380
1381         if (autoneg == AUTONEG_ENABLE &&
1382             (tp->tg3_flags & TG3_FLAG_PAUSE_AUTONEG)) {
1383                 if (tp->phy_flags & TG3_PHYFLG_ANY_SERDES)
1384                         flowctrl = tg3_resolve_flowctrl_1000X(lcladv, rmtadv);
1385                 else
1386                         flowctrl = mii_resolve_flowctrl_fdx(lcladv, rmtadv);
1387         } else
1388                 flowctrl = tp->link_config.flowctrl;
1389
1390         tp->link_config.active_flowctrl = flowctrl;
1391
1392         if (flowctrl & FLOW_CTRL_RX)
1393                 tp->rx_mode |= RX_MODE_FLOW_CTRL_ENABLE;
1394         else
1395                 tp->rx_mode &= ~RX_MODE_FLOW_CTRL_ENABLE;
1396
1397         if (old_rx_mode != tp->rx_mode)
1398                 tw32_f(MAC_RX_MODE, tp->rx_mode);
1399
1400         if (flowctrl & FLOW_CTRL_TX)
1401                 tp->tx_mode |= TX_MODE_FLOW_CTRL_ENABLE;
1402         else
1403                 tp->tx_mode &= ~TX_MODE_FLOW_CTRL_ENABLE;
1404
1405         if (old_tx_mode != tp->tx_mode)
1406                 tw32_f(MAC_TX_MODE, tp->tx_mode);
1407 }
1408
1409 static void tg3_adjust_link(struct net_device *dev)
1410 {
1411         u8 oldflowctrl, linkmesg = 0;
1412         u32 mac_mode, lcl_adv, rmt_adv;
1413         struct tg3 *tp = netdev_priv(dev);
1414         struct phy_device *phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
1415
1416         spin_lock_bh(&tp->lock);
1417
1418         mac_mode = tp->mac_mode & ~(MAC_MODE_PORT_MODE_MASK |
1419                                     MAC_MODE_HALF_DUPLEX);
1420
1421         oldflowctrl = tp->link_config.active_flowctrl;
1422
1423         if (phydev->link) {
1424                 lcl_adv = 0;
1425                 rmt_adv = 0;
1426
1427                 if (phydev->speed == SPEED_100 || phydev->speed == SPEED_10)
1428                         mac_mode |= MAC_MODE_PORT_MODE_MII;
1429                 else if (phydev->speed == SPEED_1000 ||
1430                          GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785)
1431                         mac_mode |= MAC_MODE_PORT_MODE_GMII;
1432                 else
1433                         mac_mode |= MAC_MODE_PORT_MODE_MII;
1434
1435                 if (phydev->duplex == DUPLEX_HALF)
1436                         mac_mode |= MAC_MODE_HALF_DUPLEX;
1437                 else {
1438                         lcl_adv = tg3_advert_flowctrl_1000T(
1439                                   tp->link_config.flowctrl);
1440
1441                         if (phydev->pause)
1442                                 rmt_adv = LPA_PAUSE_CAP;
1443                         if (phydev->asym_pause)
1444                                 rmt_adv |= LPA_PAUSE_ASYM;
1445                 }
1446
1447                 tg3_setup_flow_control(tp, lcl_adv, rmt_adv);
1448         } else
1449                 mac_mode |= MAC_MODE_PORT_MODE_GMII;
1450
1451         if (mac_mode != tp->mac_mode) {
1452                 tp->mac_mode = mac_mode;
1453                 tw32_f(MAC_MODE, tp->mac_mode);
1454                 udelay(40);
1455         }
1456
1457         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785) {
1458                 if (phydev->speed == SPEED_10)
1459                         tw32(MAC_MI_STAT,
1460                              MAC_MI_STAT_10MBPS_MODE |
1461                              MAC_MI_STAT_LNKSTAT_ATTN_ENAB);
1462                 else
1463                         tw32(MAC_MI_STAT, MAC_MI_STAT_LNKSTAT_ATTN_ENAB);
1464         }
1465
1466         if (phydev->speed == SPEED_1000 && phydev->duplex == DUPLEX_HALF)
1467                 tw32(MAC_TX_LENGTHS,
1468                      ((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
1469                       (6 << TX_LENGTHS_IPG_SHIFT) |
1470                       (0xff << TX_LENGTHS_SLOT_TIME_SHIFT)));
1471         else
1472                 tw32(MAC_TX_LENGTHS,
1473                      ((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
1474                       (6 << TX_LENGTHS_IPG_SHIFT) |
1475                       (32 << TX_LENGTHS_SLOT_TIME_SHIFT)));
1476
1477         if ((phydev->link && tp->link_config.active_speed == SPEED_INVALID) ||
1478             (!phydev->link && tp->link_config.active_speed != SPEED_INVALID) ||
1479             phydev->speed != tp->link_config.active_speed ||
1480             phydev->duplex != tp->link_config.active_duplex ||
1481             oldflowctrl != tp->link_config.active_flowctrl)
1482                 linkmesg = 1;
1483
1484         tp->link_config.active_speed = phydev->speed;
1485         tp->link_config.active_duplex = phydev->duplex;
1486
1487         spin_unlock_bh(&tp->lock);
1488
1489         if (linkmesg)
1490                 tg3_link_report(tp);
1491 }
1492
1493 static int tg3_phy_init(struct tg3 *tp)
1494 {
1495         struct phy_device *phydev;
1496
1497         if (tp->phy_flags & TG3_PHYFLG_IS_CONNECTED)
1498                 return 0;
1499
1500         /* Bring the PHY back to a known state. */
1501         tg3_bmcr_reset(tp);
1502
1503         phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
1504
1505         /* Attach the MAC to the PHY. */
1506         phydev = phy_connect(tp->dev, dev_name(&phydev->dev), tg3_adjust_link,
1507                              phydev->dev_flags, phydev->interface);
1508         if (IS_ERR(phydev)) {
1509                 dev_err(&tp->pdev->dev, "Could not attach to PHY\n");
1510                 return PTR_ERR(phydev);
1511         }
1512
1513         /* Mask with MAC supported features. */
1514         switch (phydev->interface) {
1515         case PHY_INTERFACE_MODE_GMII:
1516         case PHY_INTERFACE_MODE_RGMII:
1517                 if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY)) {
1518                         phydev->supported &= (PHY_GBIT_FEATURES |
1519                                               SUPPORTED_Pause |
1520                                               SUPPORTED_Asym_Pause);
1521                         break;
1522                 }
1523                 /* fallthru */
1524         case PHY_INTERFACE_MODE_MII:
1525                 phydev->supported &= (PHY_BASIC_FEATURES |
1526                                       SUPPORTED_Pause |
1527                                       SUPPORTED_Asym_Pause);
1528                 break;
1529         default:
1530                 phy_disconnect(tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR]);
1531                 return -EINVAL;
1532         }
1533
1534         tp->phy_flags |= TG3_PHYFLG_IS_CONNECTED;
1535
1536         phydev->advertising = phydev->supported;
1537
1538         return 0;
1539 }
1540
1541 static void tg3_phy_start(struct tg3 *tp)
1542 {
1543         struct phy_device *phydev;
1544
1545         if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
1546                 return;
1547
1548         phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
1549
1550         if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER) {
1551                 tp->phy_flags &= ~TG3_PHYFLG_IS_LOW_POWER;
1552                 phydev->speed = tp->link_config.orig_speed;
1553                 phydev->duplex = tp->link_config.orig_duplex;
1554                 phydev->autoneg = tp->link_config.orig_autoneg;
1555                 phydev->advertising = tp->link_config.orig_advertising;
1556         }
1557
1558         phy_start(phydev);
1559
1560         phy_start_aneg(phydev);
1561 }
1562
1563 static void tg3_phy_stop(struct tg3 *tp)
1564 {
1565         if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
1566                 return;
1567
1568         phy_stop(tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR]);
1569 }
1570
1571 static void tg3_phy_fini(struct tg3 *tp)
1572 {
1573         if (tp->phy_flags & TG3_PHYFLG_IS_CONNECTED) {
1574                 phy_disconnect(tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR]);
1575                 tp->phy_flags &= ~TG3_PHYFLG_IS_CONNECTED;
1576         }
1577 }
1578
1579 static int tg3_phydsp_read(struct tg3 *tp, u32 reg, u32 *val)
1580 {
1581         int err;
1582
1583         err = tg3_writephy(tp, MII_TG3_DSP_ADDRESS, reg);
1584         if (!err)
1585                 err = tg3_readphy(tp, MII_TG3_DSP_RW_PORT, val);
1586
1587         return err;
1588 }
1589
1590 static int tg3_phydsp_write(struct tg3 *tp, u32 reg, u32 val)
1591 {
1592         int err;
1593
1594         err = tg3_writephy(tp, MII_TG3_DSP_ADDRESS, reg);
1595         if (!err)
1596                 err = tg3_writephy(tp, MII_TG3_DSP_RW_PORT, val);
1597
1598         return err;
1599 }
1600
1601 static void tg3_phy_fet_toggle_apd(struct tg3 *tp, bool enable)
1602 {
1603         u32 phytest;
1604
1605         if (!tg3_readphy(tp, MII_TG3_FET_TEST, &phytest)) {
1606                 u32 phy;
1607
1608                 tg3_writephy(tp, MII_TG3_FET_TEST,
1609                              phytest | MII_TG3_FET_SHADOW_EN);
1610                 if (!tg3_readphy(tp, MII_TG3_FET_SHDW_AUXSTAT2, &phy)) {
1611                         if (enable)
1612                                 phy |= MII_TG3_FET_SHDW_AUXSTAT2_APD;
1613                         else
1614                                 phy &= ~MII_TG3_FET_SHDW_AUXSTAT2_APD;
1615                         tg3_writephy(tp, MII_TG3_FET_SHDW_AUXSTAT2, phy);
1616                 }
1617                 tg3_writephy(tp, MII_TG3_FET_TEST, phytest);
1618         }
1619 }
1620
1621 static void tg3_phy_toggle_apd(struct tg3 *tp, bool enable)
1622 {
1623         u32 reg;
1624
1625         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ||
1626             ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
1627               GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719) &&
1628              (tp->phy_flags & TG3_PHYFLG_MII_SERDES)))
1629                 return;
1630
1631         if (tp->phy_flags & TG3_PHYFLG_IS_FET) {
1632                 tg3_phy_fet_toggle_apd(tp, enable);
1633                 return;
1634         }
1635
1636         reg = MII_TG3_MISC_SHDW_WREN |
1637               MII_TG3_MISC_SHDW_SCR5_SEL |
1638               MII_TG3_MISC_SHDW_SCR5_LPED |
1639               MII_TG3_MISC_SHDW_SCR5_DLPTLM |
1640               MII_TG3_MISC_SHDW_SCR5_SDTL |
1641               MII_TG3_MISC_SHDW_SCR5_C125OE;
1642         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5784 || !enable)
1643                 reg |= MII_TG3_MISC_SHDW_SCR5_DLLAPD;
1644
1645         tg3_writephy(tp, MII_TG3_MISC_SHDW, reg);
1646
1647
1648         reg = MII_TG3_MISC_SHDW_WREN |
1649               MII_TG3_MISC_SHDW_APD_SEL |
1650               MII_TG3_MISC_SHDW_APD_WKTM_84MS;
1651         if (enable)
1652                 reg |= MII_TG3_MISC_SHDW_APD_ENABLE;
1653
1654         tg3_writephy(tp, MII_TG3_MISC_SHDW, reg);
1655 }
1656
1657 static void tg3_phy_toggle_automdix(struct tg3 *tp, int enable)
1658 {
1659         u32 phy;
1660
1661         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ||
1662             (tp->phy_flags & TG3_PHYFLG_ANY_SERDES))
1663                 return;
1664
1665         if (tp->phy_flags & TG3_PHYFLG_IS_FET) {
1666                 u32 ephy;
1667
1668                 if (!tg3_readphy(tp, MII_TG3_FET_TEST, &ephy)) {
1669                         u32 reg = MII_TG3_FET_SHDW_MISCCTRL;
1670
1671                         tg3_writephy(tp, MII_TG3_FET_TEST,
1672                                      ephy | MII_TG3_FET_SHADOW_EN);
1673                         if (!tg3_readphy(tp, reg, &phy)) {
1674                                 if (enable)
1675                                         phy |= MII_TG3_FET_SHDW_MISCCTRL_MDIX;
1676                                 else
1677                                         phy &= ~MII_TG3_FET_SHDW_MISCCTRL_MDIX;
1678                                 tg3_writephy(tp, reg, phy);
1679                         }
1680                         tg3_writephy(tp, MII_TG3_FET_TEST, ephy);
1681                 }
1682         } else {
1683                 phy = MII_TG3_AUXCTL_MISC_RDSEL_MISC |
1684                       MII_TG3_AUXCTL_SHDWSEL_MISC;
1685                 if (!tg3_writephy(tp, MII_TG3_AUX_CTRL, phy) &&
1686                     !tg3_readphy(tp, MII_TG3_AUX_CTRL, &phy)) {
1687                         if (enable)
1688                                 phy |= MII_TG3_AUXCTL_MISC_FORCE_AMDIX;
1689                         else
1690                                 phy &= ~MII_TG3_AUXCTL_MISC_FORCE_AMDIX;
1691                         phy |= MII_TG3_AUXCTL_MISC_WREN;
1692                         tg3_writephy(tp, MII_TG3_AUX_CTRL, phy);
1693                 }
1694         }
1695 }
1696
1697 static void tg3_phy_set_wirespeed(struct tg3 *tp)
1698 {
1699         u32 val;
1700
1701         if (tp->phy_flags & TG3_PHYFLG_NO_ETH_WIRE_SPEED)
1702                 return;
1703
1704         if (!tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x7007) &&
1705             !tg3_readphy(tp, MII_TG3_AUX_CTRL, &val))
1706                 tg3_writephy(tp, MII_TG3_AUX_CTRL,
1707                              (val | (1 << 15) | (1 << 4)));
1708 }
1709
1710 static void tg3_phy_apply_otp(struct tg3 *tp)
1711 {
1712         u32 otp, phy;
1713
1714         if (!tp->phy_otp)
1715                 return;
1716
1717         otp = tp->phy_otp;
1718
1719         /* Enable SM_DSP clock and tx 6dB coding. */
1720         phy = MII_TG3_AUXCTL_SHDWSEL_AUXCTL |
1721               MII_TG3_AUXCTL_ACTL_SMDSP_ENA |
1722               MII_TG3_AUXCTL_ACTL_TX_6DB;
1723         tg3_writephy(tp, MII_TG3_AUX_CTRL, phy);
1724
1725         phy = ((otp & TG3_OTP_AGCTGT_MASK) >> TG3_OTP_AGCTGT_SHIFT);
1726         phy |= MII_TG3_DSP_TAP1_AGCTGT_DFLT;
1727         tg3_phydsp_write(tp, MII_TG3_DSP_TAP1, phy);
1728
1729         phy = ((otp & TG3_OTP_HPFFLTR_MASK) >> TG3_OTP_HPFFLTR_SHIFT) |
1730               ((otp & TG3_OTP_HPFOVER_MASK) >> TG3_OTP_HPFOVER_SHIFT);
1731         tg3_phydsp_write(tp, MII_TG3_DSP_AADJ1CH0, phy);
1732
1733         phy = ((otp & TG3_OTP_LPFDIS_MASK) >> TG3_OTP_LPFDIS_SHIFT);
1734         phy |= MII_TG3_DSP_AADJ1CH3_ADCCKADJ;
1735         tg3_phydsp_write(tp, MII_TG3_DSP_AADJ1CH3, phy);
1736
1737         phy = ((otp & TG3_OTP_VDAC_MASK) >> TG3_OTP_VDAC_SHIFT);
1738         tg3_phydsp_write(tp, MII_TG3_DSP_EXP75, phy);
1739
1740         phy = ((otp & TG3_OTP_10BTAMP_MASK) >> TG3_OTP_10BTAMP_SHIFT);
1741         tg3_phydsp_write(tp, MII_TG3_DSP_EXP96, phy);
1742
1743         phy = ((otp & TG3_OTP_ROFF_MASK) >> TG3_OTP_ROFF_SHIFT) |
1744               ((otp & TG3_OTP_RCOFF_MASK) >> TG3_OTP_RCOFF_SHIFT);
1745         tg3_phydsp_write(tp, MII_TG3_DSP_EXP97, phy);
1746
1747         /* Turn off SM_DSP clock. */
1748         phy = MII_TG3_AUXCTL_SHDWSEL_AUXCTL |
1749               MII_TG3_AUXCTL_ACTL_TX_6DB;
1750         tg3_writephy(tp, MII_TG3_AUX_CTRL, phy);
1751 }
1752
1753 static void tg3_phy_eee_adjust(struct tg3 *tp, u32 current_link_up)
1754 {
1755         u32 val;
1756
1757         if (!(tp->phy_flags & TG3_PHYFLG_EEE_CAP))
1758                 return;
1759
1760         tp->setlpicnt = 0;
1761
1762         if (tp->link_config.autoneg == AUTONEG_ENABLE &&
1763             current_link_up == 1 &&
1764             tp->link_config.active_duplex == DUPLEX_FULL &&
1765             (tp->link_config.active_speed == SPEED_100 ||
1766              tp->link_config.active_speed == SPEED_1000)) {
1767                 u32 eeectl;
1768
1769                 if (tp->link_config.active_speed == SPEED_1000)
1770                         eeectl = TG3_CPMU_EEE_CTRL_EXIT_16_5_US;
1771                 else
1772                         eeectl = TG3_CPMU_EEE_CTRL_EXIT_36_US;
1773
1774                 tw32(TG3_CPMU_EEE_CTRL, eeectl);
1775
1776                 tg3_phy_cl45_read(tp, MDIO_MMD_AN,
1777                                   TG3_CL45_D7_EEERES_STAT, &val);
1778
1779                 switch (val) {
1780                 case TG3_CL45_D7_EEERES_STAT_LP_1000T:
1781                         switch (GET_ASIC_REV(tp->pci_chip_rev_id)) {
1782                         case ASIC_REV_5717:
1783                         case ASIC_REV_5719:
1784                         case ASIC_REV_57765:
1785                                 /* Enable SM_DSP clock and tx 6dB coding. */
1786                                 val = MII_TG3_AUXCTL_SHDWSEL_AUXCTL |
1787                                       MII_TG3_AUXCTL_ACTL_SMDSP_ENA |
1788                                       MII_TG3_AUXCTL_ACTL_TX_6DB;
1789                                 tg3_writephy(tp, MII_TG3_AUX_CTRL, val);
1790
1791                                 tg3_phydsp_write(tp, MII_TG3_DSP_TAP26, 0x0000);
1792
1793                                 /* Turn off SM_DSP clock. */
1794                                 val = MII_TG3_AUXCTL_SHDWSEL_AUXCTL |
1795                                       MII_TG3_AUXCTL_ACTL_TX_6DB;
1796                                 tg3_writephy(tp, MII_TG3_AUX_CTRL, val);
1797                         }
1798                         /* Fallthrough */
1799                 case TG3_CL45_D7_EEERES_STAT_LP_100TX:
1800                         tp->setlpicnt = 2;
1801                 }
1802         }
1803
1804         if (!tp->setlpicnt) {
1805                 val = tr32(TG3_CPMU_EEE_MODE);
1806                 tw32(TG3_CPMU_EEE_MODE, val & ~TG3_CPMU_EEEMD_LPI_ENABLE);
1807         }
1808 }
1809
1810 static int tg3_wait_macro_done(struct tg3 *tp)
1811 {
1812         int limit = 100;
1813
1814         while (limit--) {
1815                 u32 tmp32;
1816
1817                 if (!tg3_readphy(tp, MII_TG3_DSP_CONTROL, &tmp32)) {
1818                         if ((tmp32 & 0x1000) == 0)
1819                                 break;
1820                 }
1821         }
1822         if (limit < 0)
1823                 return -EBUSY;
1824
1825         return 0;
1826 }
1827
1828 static int tg3_phy_write_and_check_testpat(struct tg3 *tp, int *resetp)
1829 {
1830         static const u32 test_pat[4][6] = {
1831         { 0x00005555, 0x00000005, 0x00002aaa, 0x0000000a, 0x00003456, 0x00000003 },
1832         { 0x00002aaa, 0x0000000a, 0x00003333, 0x00000003, 0x0000789a, 0x00000005 },
1833         { 0x00005a5a, 0x00000005, 0x00002a6a, 0x0000000a, 0x00001bcd, 0x00000003 },
1834         { 0x00002a5a, 0x0000000a, 0x000033c3, 0x00000003, 0x00002ef1, 0x00000005 }
1835         };
1836         int chan;
1837
1838         for (chan = 0; chan < 4; chan++) {
1839                 int i;
1840
1841                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
1842                              (chan * 0x2000) | 0x0200);
1843                 tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0002);
1844
1845                 for (i = 0; i < 6; i++)
1846                         tg3_writephy(tp, MII_TG3_DSP_RW_PORT,
1847                                      test_pat[chan][i]);
1848
1849                 tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0202);
1850                 if (tg3_wait_macro_done(tp)) {
1851                         *resetp = 1;
1852                         return -EBUSY;
1853                 }
1854
1855                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
1856                              (chan * 0x2000) | 0x0200);
1857                 tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0082);
1858                 if (tg3_wait_macro_done(tp)) {
1859                         *resetp = 1;
1860                         return -EBUSY;
1861                 }
1862
1863                 tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0802);
1864                 if (tg3_wait_macro_done(tp)) {
1865                         *resetp = 1;
1866                         return -EBUSY;
1867                 }
1868
1869                 for (i = 0; i < 6; i += 2) {
1870                         u32 low, high;
1871
1872                         if (tg3_readphy(tp, MII_TG3_DSP_RW_PORT, &low) ||
1873                             tg3_readphy(tp, MII_TG3_DSP_RW_PORT, &high) ||
1874                             tg3_wait_macro_done(tp)) {
1875                                 *resetp = 1;
1876                                 return -EBUSY;
1877                         }
1878                         low &= 0x7fff;
1879                         high &= 0x000f;
1880                         if (low != test_pat[chan][i] ||
1881                             high != test_pat[chan][i+1]) {
1882                                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000b);
1883                                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x4001);
1884                                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x4005);
1885
1886                                 return -EBUSY;
1887                         }
1888                 }
1889         }
1890
1891         return 0;
1892 }
1893
1894 static int tg3_phy_reset_chanpat(struct tg3 *tp)
1895 {
1896         int chan;
1897
1898         for (chan = 0; chan < 4; chan++) {
1899                 int i;
1900
1901                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
1902                              (chan * 0x2000) | 0x0200);
1903                 tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0002);
1904                 for (i = 0; i < 6; i++)
1905                         tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x000);
1906                 tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0202);
1907                 if (tg3_wait_macro_done(tp))
1908                         return -EBUSY;
1909         }
1910
1911         return 0;
1912 }
1913
1914 static int tg3_phy_reset_5703_4_5(struct tg3 *tp)
1915 {
1916         u32 reg32, phy9_orig;
1917         int retries, do_phy_reset, err;
1918
1919         retries = 10;
1920         do_phy_reset = 1;
1921         do {
1922                 if (do_phy_reset) {
1923                         err = tg3_bmcr_reset(tp);
1924                         if (err)
1925                                 return err;
1926                         do_phy_reset = 0;
1927                 }
1928
1929                 /* Disable transmitter and interrupt.  */
1930                 if (tg3_readphy(tp, MII_TG3_EXT_CTRL, &reg32))
1931                         continue;
1932
1933                 reg32 |= 0x3000;
1934                 tg3_writephy(tp, MII_TG3_EXT_CTRL, reg32);
1935
1936                 /* Set full-duplex, 1000 mbps.  */
1937                 tg3_writephy(tp, MII_BMCR,
1938                              BMCR_FULLDPLX | TG3_BMCR_SPEED1000);
1939
1940                 /* Set to master mode.  */
1941                 if (tg3_readphy(tp, MII_TG3_CTRL, &phy9_orig))
1942                         continue;
1943
1944                 tg3_writephy(tp, MII_TG3_CTRL,
1945                              (MII_TG3_CTRL_AS_MASTER |
1946                               MII_TG3_CTRL_ENABLE_AS_MASTER));
1947
1948                 /* Enable SM_DSP_CLOCK and 6dB.  */
1949                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
1950
1951                 /* Block the PHY control access.  */
1952                 tg3_phydsp_write(tp, 0x8005, 0x0800);
1953
1954                 err = tg3_phy_write_and_check_testpat(tp, &do_phy_reset);
1955                 if (!err)
1956                         break;
1957         } while (--retries);
1958
1959         err = tg3_phy_reset_chanpat(tp);
1960         if (err)
1961                 return err;
1962
1963         tg3_phydsp_write(tp, 0x8005, 0x0000);
1964
1965         tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8200);
1966         tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0000);
1967
1968         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
1969             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
1970                 /* Set Extended packet length bit for jumbo frames */
1971                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4400);
1972         } else {
1973                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
1974         }
1975
1976         tg3_writephy(tp, MII_TG3_CTRL, phy9_orig);
1977
1978         if (!tg3_readphy(tp, MII_TG3_EXT_CTRL, &reg32)) {
1979                 reg32 &= ~0x3000;
1980                 tg3_writephy(tp, MII_TG3_EXT_CTRL, reg32);
1981         } else if (!err)
1982                 err = -EBUSY;
1983
1984         return err;
1985 }
1986
1987 /* This will reset the tigon3 PHY if there is no valid
1988  * link unless the FORCE argument is non-zero.
1989  */
1990 static int tg3_phy_reset(struct tg3 *tp)
1991 {
1992         u32 val, cpmuctrl;
1993         int err;
1994
1995         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
1996                 val = tr32(GRC_MISC_CFG);
1997                 tw32_f(GRC_MISC_CFG, val & ~GRC_MISC_CFG_EPHY_IDDQ);
1998                 udelay(40);
1999         }
2000         err  = tg3_readphy(tp, MII_BMSR, &val);
2001         err |= tg3_readphy(tp, MII_BMSR, &val);
2002         if (err != 0)
2003                 return -EBUSY;
2004
2005         if (netif_running(tp->dev) && netif_carrier_ok(tp->dev)) {
2006                 netif_carrier_off(tp->dev);
2007                 tg3_link_report(tp);
2008         }
2009
2010         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
2011             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
2012             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
2013                 err = tg3_phy_reset_5703_4_5(tp);
2014                 if (err)
2015                         return err;
2016                 goto out;
2017         }
2018
2019         cpmuctrl = 0;
2020         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
2021             GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) {
2022                 cpmuctrl = tr32(TG3_CPMU_CTRL);
2023                 if (cpmuctrl & CPMU_CTRL_GPHY_10MB_RXONLY)
2024                         tw32(TG3_CPMU_CTRL,
2025                              cpmuctrl & ~CPMU_CTRL_GPHY_10MB_RXONLY);
2026         }
2027
2028         err = tg3_bmcr_reset(tp);
2029         if (err)
2030                 return err;
2031
2032         if (cpmuctrl & CPMU_CTRL_GPHY_10MB_RXONLY) {
2033                 val = MII_TG3_DSP_EXP8_AEDW | MII_TG3_DSP_EXP8_REJ2MHz;
2034                 tg3_phydsp_write(tp, MII_TG3_DSP_EXP8, val);
2035
2036                 tw32(TG3_CPMU_CTRL, cpmuctrl);
2037         }
2038
2039         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX ||
2040             GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5761_AX) {
2041                 val = tr32(TG3_CPMU_LSPD_1000MB_CLK);
2042                 if ((val & CPMU_LSPD_1000MB_MACCLK_MASK) ==
2043                     CPMU_LSPD_1000MB_MACCLK_12_5) {
2044                         val &= ~CPMU_LSPD_1000MB_MACCLK_MASK;
2045                         udelay(40);
2046                         tw32_f(TG3_CPMU_LSPD_1000MB_CLK, val);
2047                 }
2048         }
2049
2050         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
2051              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719) &&
2052             (tp->phy_flags & TG3_PHYFLG_MII_SERDES))
2053                 return 0;
2054
2055         tg3_phy_apply_otp(tp);
2056
2057         if (tp->phy_flags & TG3_PHYFLG_ENABLE_APD)
2058                 tg3_phy_toggle_apd(tp, true);
2059         else
2060                 tg3_phy_toggle_apd(tp, false);
2061
2062 out:
2063         if (tp->phy_flags & TG3_PHYFLG_ADC_BUG) {
2064                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
2065                 tg3_phydsp_write(tp, 0x201f, 0x2aaa);
2066                 tg3_phydsp_write(tp, 0x000a, 0x0323);
2067                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
2068         }
2069         if (tp->phy_flags & TG3_PHYFLG_5704_A0_BUG) {
2070                 tg3_writephy(tp, MII_TG3_MISC_SHDW, 0x8d68);
2071                 tg3_writephy(tp, MII_TG3_MISC_SHDW, 0x8d68);
2072         }
2073         if (tp->phy_flags & TG3_PHYFLG_BER_BUG) {
2074                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
2075                 tg3_phydsp_write(tp, 0x000a, 0x310b);
2076                 tg3_phydsp_write(tp, 0x201f, 0x9506);
2077                 tg3_phydsp_write(tp, 0x401f, 0x14e2);
2078                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
2079         } else if (tp->phy_flags & TG3_PHYFLG_JITTER_BUG) {
2080                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
2081                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000a);
2082                 if (tp->phy_flags & TG3_PHYFLG_ADJUST_TRIM) {
2083                         tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x110b);
2084                         tg3_writephy(tp, MII_TG3_TEST1,
2085                                      MII_TG3_TEST1_TRIM_EN | 0x4);
2086                 } else
2087                         tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x010b);
2088                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
2089         }
2090         /* Set Extended packet length bit (bit 14) on all chips that */
2091         /* support jumbo frames */
2092         if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5401) {
2093                 /* Cannot do read-modify-write on 5401 */
2094                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4c20);
2095         } else if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) {
2096                 /* Set bit 14 with read-modify-write to preserve other bits */
2097                 if (!tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0007) &&
2098                     !tg3_readphy(tp, MII_TG3_AUX_CTRL, &val))
2099                         tg3_writephy(tp, MII_TG3_AUX_CTRL, val | 0x4000);
2100         }
2101
2102         /* Set phy register 0x10 bit 0 to high fifo elasticity to support
2103          * jumbo frames transmission.
2104          */
2105         if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) {
2106                 if (!tg3_readphy(tp, MII_TG3_EXT_CTRL, &val))
2107                         tg3_writephy(tp, MII_TG3_EXT_CTRL,
2108                                      val | MII_TG3_EXT_CTRL_FIFO_ELASTIC);
2109         }
2110
2111         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
2112                 /* adjust output voltage */
2113                 tg3_writephy(tp, MII_TG3_FET_PTEST, 0x12);
2114         }
2115
2116         tg3_phy_toggle_automdix(tp, 1);
2117         tg3_phy_set_wirespeed(tp);
2118         return 0;
2119 }
2120
2121 static void tg3_frob_aux_power(struct tg3 *tp)
2122 {
2123         bool need_vaux = false;
2124
2125         /* The GPIOs do something completely different on 57765. */
2126         if ((tp->tg3_flags2 & TG3_FLG2_IS_NIC) == 0 ||
2127             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719 ||
2128             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
2129                 return;
2130
2131         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
2132              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714 ||
2133              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717) &&
2134             tp->pdev_peer != tp->pdev) {
2135                 struct net_device *dev_peer;
2136
2137                 dev_peer = pci_get_drvdata(tp->pdev_peer);
2138
2139                 /* remove_one() may have been run on the peer. */
2140                 if (dev_peer) {
2141                         struct tg3 *tp_peer = netdev_priv(dev_peer);
2142
2143                         if (tp_peer->tg3_flags & TG3_FLAG_INIT_COMPLETE)
2144                                 return;
2145
2146                         if ((tp_peer->tg3_flags & TG3_FLAG_WOL_ENABLE) ||
2147                             (tp_peer->tg3_flags & TG3_FLAG_ENABLE_ASF))
2148                                 need_vaux = true;
2149                 }
2150         }
2151
2152         if ((tp->tg3_flags & TG3_FLAG_WOL_ENABLE) ||
2153             (tp->tg3_flags & TG3_FLAG_ENABLE_ASF))
2154                 need_vaux = true;
2155
2156         if (need_vaux) {
2157                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
2158                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
2159                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2160                                     (GRC_LCLCTRL_GPIO_OE0 |
2161                                      GRC_LCLCTRL_GPIO_OE1 |
2162                                      GRC_LCLCTRL_GPIO_OE2 |
2163                                      GRC_LCLCTRL_GPIO_OUTPUT0 |
2164                                      GRC_LCLCTRL_GPIO_OUTPUT1),
2165                                     100);
2166                 } else if (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5761 ||
2167                            tp->pdev->device == TG3PCI_DEVICE_TIGON3_5761S) {
2168                         /* The 5761 non-e device swaps GPIO 0 and GPIO 2. */
2169                         u32 grc_local_ctrl = GRC_LCLCTRL_GPIO_OE0 |
2170                                              GRC_LCLCTRL_GPIO_OE1 |
2171                                              GRC_LCLCTRL_GPIO_OE2 |
2172                                              GRC_LCLCTRL_GPIO_OUTPUT0 |
2173                                              GRC_LCLCTRL_GPIO_OUTPUT1 |
2174                                              tp->grc_local_ctrl;
2175                         tw32_wait_f(GRC_LOCAL_CTRL, grc_local_ctrl, 100);
2176
2177                         grc_local_ctrl |= GRC_LCLCTRL_GPIO_OUTPUT2;
2178                         tw32_wait_f(GRC_LOCAL_CTRL, grc_local_ctrl, 100);
2179
2180                         grc_local_ctrl &= ~GRC_LCLCTRL_GPIO_OUTPUT0;
2181                         tw32_wait_f(GRC_LOCAL_CTRL, grc_local_ctrl, 100);
2182                 } else {
2183                         u32 no_gpio2;
2184                         u32 grc_local_ctrl = 0;
2185
2186                         /* Workaround to prevent overdrawing Amps. */
2187                         if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
2188                             ASIC_REV_5714) {
2189                                 grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE3;
2190                                 tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2191                                             grc_local_ctrl, 100);
2192                         }
2193
2194                         /* On 5753 and variants, GPIO2 cannot be used. */
2195                         no_gpio2 = tp->nic_sram_data_cfg &
2196                                     NIC_SRAM_DATA_CFG_NO_GPIO2;
2197
2198                         grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE0 |
2199                                          GRC_LCLCTRL_GPIO_OE1 |
2200                                          GRC_LCLCTRL_GPIO_OE2 |
2201                                          GRC_LCLCTRL_GPIO_OUTPUT1 |
2202                                          GRC_LCLCTRL_GPIO_OUTPUT2;
2203                         if (no_gpio2) {
2204                                 grc_local_ctrl &= ~(GRC_LCLCTRL_GPIO_OE2 |
2205                                                     GRC_LCLCTRL_GPIO_OUTPUT2);
2206                         }
2207                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2208                                                     grc_local_ctrl, 100);
2209
2210                         grc_local_ctrl |= GRC_LCLCTRL_GPIO_OUTPUT0;
2211
2212                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2213                                                     grc_local_ctrl, 100);
2214
2215                         if (!no_gpio2) {
2216                                 grc_local_ctrl &= ~GRC_LCLCTRL_GPIO_OUTPUT2;
2217                                 tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2218                                             grc_local_ctrl, 100);
2219                         }
2220                 }
2221         } else {
2222                 if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
2223                     GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701) {
2224                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2225                                     (GRC_LCLCTRL_GPIO_OE1 |
2226                                      GRC_LCLCTRL_GPIO_OUTPUT1), 100);
2227
2228                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2229                                     GRC_LCLCTRL_GPIO_OE1, 100);
2230
2231                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2232                                     (GRC_LCLCTRL_GPIO_OE1 |
2233                                      GRC_LCLCTRL_GPIO_OUTPUT1), 100);
2234                 }
2235         }
2236 }
2237
2238 static int tg3_5700_link_polarity(struct tg3 *tp, u32 speed)
2239 {
2240         if (tp->led_ctrl == LED_CTRL_MODE_PHY_2)
2241                 return 1;
2242         else if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5411) {
2243                 if (speed != SPEED_10)
2244                         return 1;
2245         } else if (speed == SPEED_10)
2246                 return 1;
2247
2248         return 0;
2249 }
2250
2251 static int tg3_setup_phy(struct tg3 *, int);
2252
2253 #define RESET_KIND_SHUTDOWN     0
2254 #define RESET_KIND_INIT         1
2255 #define RESET_KIND_SUSPEND      2
2256
2257 static void tg3_write_sig_post_reset(struct tg3 *, int);
2258 static int tg3_halt_cpu(struct tg3 *, u32);
2259
2260 static void tg3_power_down_phy(struct tg3 *tp, bool do_low_power)
2261 {
2262         u32 val;
2263
2264         if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES) {
2265                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
2266                         u32 sg_dig_ctrl = tr32(SG_DIG_CTRL);
2267                         u32 serdes_cfg = tr32(MAC_SERDES_CFG);
2268
2269                         sg_dig_ctrl |=
2270                                 SG_DIG_USING_HW_AUTONEG | SG_DIG_SOFT_RESET;
2271                         tw32(SG_DIG_CTRL, sg_dig_ctrl);
2272                         tw32(MAC_SERDES_CFG, serdes_cfg | (1 << 15));
2273                 }
2274                 return;
2275         }
2276
2277         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
2278                 tg3_bmcr_reset(tp);
2279                 val = tr32(GRC_MISC_CFG);
2280                 tw32_f(GRC_MISC_CFG, val | GRC_MISC_CFG_EPHY_IDDQ);
2281                 udelay(40);
2282                 return;
2283         } else if (tp->phy_flags & TG3_PHYFLG_IS_FET) {
2284                 u32 phytest;
2285                 if (!tg3_readphy(tp, MII_TG3_FET_TEST, &phytest)) {
2286                         u32 phy;
2287
2288                         tg3_writephy(tp, MII_ADVERTISE, 0);
2289                         tg3_writephy(tp, MII_BMCR,
2290                                      BMCR_ANENABLE | BMCR_ANRESTART);
2291
2292                         tg3_writephy(tp, MII_TG3_FET_TEST,
2293                                      phytest | MII_TG3_FET_SHADOW_EN);
2294                         if (!tg3_readphy(tp, MII_TG3_FET_SHDW_AUXMODE4, &phy)) {
2295                                 phy |= MII_TG3_FET_SHDW_AUXMODE4_SBPD;
2296                                 tg3_writephy(tp,
2297                                              MII_TG3_FET_SHDW_AUXMODE4,
2298                                              phy);
2299                         }
2300                         tg3_writephy(tp, MII_TG3_FET_TEST, phytest);
2301                 }
2302                 return;
2303         } else if (do_low_power) {
2304                 tg3_writephy(tp, MII_TG3_EXT_CTRL,
2305                              MII_TG3_EXT_CTRL_FORCE_LED_OFF);
2306
2307                 tg3_writephy(tp, MII_TG3_AUX_CTRL,
2308                              MII_TG3_AUXCTL_SHDWSEL_PWRCTL |
2309                              MII_TG3_AUXCTL_PCTL_100TX_LPWR |
2310                              MII_TG3_AUXCTL_PCTL_SPR_ISOLATE |
2311                              MII_TG3_AUXCTL_PCTL_VREG_11V);
2312         }
2313
2314         /* The PHY should not be powered down on some chips because
2315          * of bugs.
2316          */
2317         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
2318             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
2319             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780 &&
2320              (tp->phy_flags & TG3_PHYFLG_MII_SERDES)))
2321                 return;
2322
2323         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX ||
2324             GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5761_AX) {
2325                 val = tr32(TG3_CPMU_LSPD_1000MB_CLK);
2326                 val &= ~CPMU_LSPD_1000MB_MACCLK_MASK;
2327                 val |= CPMU_LSPD_1000MB_MACCLK_12_5;
2328                 tw32_f(TG3_CPMU_LSPD_1000MB_CLK, val);
2329         }
2330
2331         tg3_writephy(tp, MII_BMCR, BMCR_PDOWN);
2332 }
2333
2334 /* tp->lock is held. */
2335 static int tg3_nvram_lock(struct tg3 *tp)
2336 {
2337         if (tp->tg3_flags & TG3_FLAG_NVRAM) {
2338                 int i;
2339
2340                 if (tp->nvram_lock_cnt == 0) {
2341                         tw32(NVRAM_SWARB, SWARB_REQ_SET1);
2342                         for (i = 0; i < 8000; i++) {
2343                                 if (tr32(NVRAM_SWARB) & SWARB_GNT1)
2344                                         break;
2345                                 udelay(20);
2346                         }
2347                         if (i == 8000) {
2348                                 tw32(NVRAM_SWARB, SWARB_REQ_CLR1);
2349                                 return -ENODEV;
2350                         }
2351                 }
2352                 tp->nvram_lock_cnt++;
2353         }
2354         return 0;
2355 }
2356
2357 /* tp->lock is held. */
2358 static void tg3_nvram_unlock(struct tg3 *tp)
2359 {
2360         if (tp->tg3_flags & TG3_FLAG_NVRAM) {
2361                 if (tp->nvram_lock_cnt > 0)
2362                         tp->nvram_lock_cnt--;
2363                 if (tp->nvram_lock_cnt == 0)
2364                         tw32_f(NVRAM_SWARB, SWARB_REQ_CLR1);
2365         }
2366 }
2367
2368 /* tp->lock is held. */
2369 static void tg3_enable_nvram_access(struct tg3 *tp)
2370 {
2371         if ((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
2372             !(tp->tg3_flags3 & TG3_FLG3_PROTECTED_NVRAM)) {
2373                 u32 nvaccess = tr32(NVRAM_ACCESS);
2374
2375                 tw32(NVRAM_ACCESS, nvaccess | ACCESS_ENABLE);
2376         }
2377 }
2378
2379 /* tp->lock is held. */
2380 static void tg3_disable_nvram_access(struct tg3 *tp)
2381 {
2382         if ((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
2383             !(tp->tg3_flags3 & TG3_FLG3_PROTECTED_NVRAM)) {
2384                 u32 nvaccess = tr32(NVRAM_ACCESS);
2385
2386                 tw32(NVRAM_ACCESS, nvaccess & ~ACCESS_ENABLE);
2387         }
2388 }
2389
2390 static int tg3_nvram_read_using_eeprom(struct tg3 *tp,
2391                                         u32 offset, u32 *val)
2392 {
2393         u32 tmp;
2394         int i;
2395
2396         if (offset > EEPROM_ADDR_ADDR_MASK || (offset % 4) != 0)
2397                 return -EINVAL;
2398
2399         tmp = tr32(GRC_EEPROM_ADDR) & ~(EEPROM_ADDR_ADDR_MASK |
2400                                         EEPROM_ADDR_DEVID_MASK |
2401                                         EEPROM_ADDR_READ);
2402         tw32(GRC_EEPROM_ADDR,
2403              tmp |
2404              (0 << EEPROM_ADDR_DEVID_SHIFT) |
2405              ((offset << EEPROM_ADDR_ADDR_SHIFT) &
2406               EEPROM_ADDR_ADDR_MASK) |
2407              EEPROM_ADDR_READ | EEPROM_ADDR_START);
2408
2409         for (i = 0; i < 1000; i++) {
2410                 tmp = tr32(GRC_EEPROM_ADDR);
2411
2412                 if (tmp & EEPROM_ADDR_COMPLETE)
2413                         break;
2414                 msleep(1);
2415         }
2416         if (!(tmp & EEPROM_ADDR_COMPLETE))
2417                 return -EBUSY;
2418
2419         tmp = tr32(GRC_EEPROM_DATA);
2420
2421         /*
2422          * The data will always be opposite the native endian
2423          * format.  Perform a blind byteswap to compensate.
2424          */
2425         *val = swab32(tmp);
2426
2427         return 0;
2428 }
2429
2430 #define NVRAM_CMD_TIMEOUT 10000
2431
2432 static int tg3_nvram_exec_cmd(struct tg3 *tp, u32 nvram_cmd)
2433 {
2434         int i;
2435
2436         tw32(NVRAM_CMD, nvram_cmd);
2437         for (i = 0; i < NVRAM_CMD_TIMEOUT; i++) {
2438                 udelay(10);
2439                 if (tr32(NVRAM_CMD) & NVRAM_CMD_DONE) {
2440                         udelay(10);
2441                         break;
2442                 }
2443         }
2444
2445         if (i == NVRAM_CMD_TIMEOUT)
2446                 return -EBUSY;
2447
2448         return 0;
2449 }
2450
2451 static u32 tg3_nvram_phys_addr(struct tg3 *tp, u32 addr)
2452 {
2453         if ((tp->tg3_flags & TG3_FLAG_NVRAM) &&
2454             (tp->tg3_flags & TG3_FLAG_NVRAM_BUFFERED) &&
2455             (tp->tg3_flags2 & TG3_FLG2_FLASH) &&
2456            !(tp->tg3_flags3 & TG3_FLG3_NO_NVRAM_ADDR_TRANS) &&
2457             (tp->nvram_jedecnum == JEDEC_ATMEL))
2458
2459                 addr = ((addr / tp->nvram_pagesize) <<
2460                         ATMEL_AT45DB0X1B_PAGE_POS) +
2461                        (addr % tp->nvram_pagesize);
2462
2463         return addr;
2464 }
2465
2466 static u32 tg3_nvram_logical_addr(struct tg3 *tp, u32 addr)
2467 {
2468         if ((tp->tg3_flags & TG3_FLAG_NVRAM) &&
2469             (tp->tg3_flags & TG3_FLAG_NVRAM_BUFFERED) &&
2470             (tp->tg3_flags2 & TG3_FLG2_FLASH) &&
2471            !(tp->tg3_flags3 & TG3_FLG3_NO_NVRAM_ADDR_TRANS) &&
2472             (tp->nvram_jedecnum == JEDEC_ATMEL))
2473
2474                 addr = ((addr >> ATMEL_AT45DB0X1B_PAGE_POS) *
2475                         tp->nvram_pagesize) +
2476                        (addr & ((1 << ATMEL_AT45DB0X1B_PAGE_POS) - 1));
2477
2478         return addr;
2479 }
2480
2481 /* NOTE: Data read in from NVRAM is byteswapped according to
2482  * the byteswapping settings for all other register accesses.
2483  * tg3 devices are BE devices, so on a BE machine, the data
2484  * returned will be exactly as it is seen in NVRAM.  On a LE
2485  * machine, the 32-bit value will be byteswapped.
2486  */
2487 static int tg3_nvram_read(struct tg3 *tp, u32 offset, u32 *val)
2488 {
2489         int ret;
2490
2491         if (!(tp->tg3_flags & TG3_FLAG_NVRAM))
2492                 return tg3_nvram_read_using_eeprom(tp, offset, val);
2493
2494         offset = tg3_nvram_phys_addr(tp, offset);
2495
2496         if (offset > NVRAM_ADDR_MSK)
2497                 return -EINVAL;
2498
2499         ret = tg3_nvram_lock(tp);
2500         if (ret)
2501                 return ret;
2502
2503         tg3_enable_nvram_access(tp);
2504
2505         tw32(NVRAM_ADDR, offset);
2506         ret = tg3_nvram_exec_cmd(tp, NVRAM_CMD_RD | NVRAM_CMD_GO |
2507                 NVRAM_CMD_FIRST | NVRAM_CMD_LAST | NVRAM_CMD_DONE);
2508
2509         if (ret == 0)
2510                 *val = tr32(NVRAM_RDDATA);
2511
2512         tg3_disable_nvram_access(tp);
2513
2514         tg3_nvram_unlock(tp);
2515
2516         return ret;
2517 }
2518
2519 /* Ensures NVRAM data is in bytestream format. */
2520 static int tg3_nvram_read_be32(struct tg3 *tp, u32 offset, __be32 *val)
2521 {
2522         u32 v;
2523         int res = tg3_nvram_read(tp, offset, &v);
2524         if (!res)
2525                 *val = cpu_to_be32(v);
2526         return res;
2527 }
2528
2529 /* tp->lock is held. */
2530 static void __tg3_set_mac_addr(struct tg3 *tp, int skip_mac_1)
2531 {
2532         u32 addr_high, addr_low;
2533         int i;
2534
2535         addr_high = ((tp->dev->dev_addr[0] << 8) |
2536                      tp->dev->dev_addr[1]);
2537         addr_low = ((tp->dev->dev_addr[2] << 24) |
2538                     (tp->dev->dev_addr[3] << 16) |
2539                     (tp->dev->dev_addr[4] <<  8) |
2540                     (tp->dev->dev_addr[5] <<  0));
2541         for (i = 0; i < 4; i++) {
2542                 if (i == 1 && skip_mac_1)
2543                         continue;
2544                 tw32(MAC_ADDR_0_HIGH + (i * 8), addr_high);
2545                 tw32(MAC_ADDR_0_LOW + (i * 8), addr_low);
2546         }
2547
2548         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
2549             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
2550                 for (i = 0; i < 12; i++) {
2551                         tw32(MAC_EXTADDR_0_HIGH + (i * 8), addr_high);
2552                         tw32(MAC_EXTADDR_0_LOW + (i * 8), addr_low);
2553                 }
2554         }
2555
2556         addr_high = (tp->dev->dev_addr[0] +
2557                      tp->dev->dev_addr[1] +
2558                      tp->dev->dev_addr[2] +
2559                      tp->dev->dev_addr[3] +
2560                      tp->dev->dev_addr[4] +
2561                      tp->dev->dev_addr[5]) &
2562                 TX_BACKOFF_SEED_MASK;
2563         tw32(MAC_TX_BACKOFF_SEED, addr_high);
2564 }
2565
2566 static void tg3_enable_register_access(struct tg3 *tp)
2567 {
2568         /*
2569          * Make sure register accesses (indirect or otherwise) will function
2570          * correctly.
2571          */
2572         pci_write_config_dword(tp->pdev,
2573                                TG3PCI_MISC_HOST_CTRL, tp->misc_host_ctrl);
2574 }
2575
2576 static int tg3_power_up(struct tg3 *tp)
2577 {
2578         tg3_enable_register_access(tp);
2579
2580         pci_set_power_state(tp->pdev, PCI_D0);
2581
2582         /* Switch out of Vaux if it is a NIC */
2583         if (tp->tg3_flags2 & TG3_FLG2_IS_NIC)
2584                 tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl, 100);
2585
2586         return 0;
2587 }
2588
2589 static int tg3_power_down_prepare(struct tg3 *tp)
2590 {
2591         u32 misc_host_ctrl;
2592         bool device_should_wake, do_low_power;
2593
2594         tg3_enable_register_access(tp);
2595
2596         /* Restore the CLKREQ setting. */
2597         if (tp->tg3_flags3 & TG3_FLG3_CLKREQ_BUG) {
2598                 u16 lnkctl;
2599
2600                 pci_read_config_word(tp->pdev,
2601                                      tp->pcie_cap + PCI_EXP_LNKCTL,
2602                                      &lnkctl);
2603                 lnkctl |= PCI_EXP_LNKCTL_CLKREQ_EN;
2604                 pci_write_config_word(tp->pdev,
2605                                       tp->pcie_cap + PCI_EXP_LNKCTL,
2606                                       lnkctl);
2607         }
2608
2609         misc_host_ctrl = tr32(TG3PCI_MISC_HOST_CTRL);
2610         tw32(TG3PCI_MISC_HOST_CTRL,
2611              misc_host_ctrl | MISC_HOST_CTRL_MASK_PCI_INT);
2612
2613         device_should_wake = device_may_wakeup(&tp->pdev->dev) &&
2614                              (tp->tg3_flags & TG3_FLAG_WOL_ENABLE);
2615
2616         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
2617                 do_low_power = false;
2618                 if ((tp->phy_flags & TG3_PHYFLG_IS_CONNECTED) &&
2619                     !(tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)) {
2620                         struct phy_device *phydev;
2621                         u32 phyid, advertising;
2622
2623                         phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
2624
2625                         tp->phy_flags |= TG3_PHYFLG_IS_LOW_POWER;
2626
2627                         tp->link_config.orig_speed = phydev->speed;
2628                         tp->link_config.orig_duplex = phydev->duplex;
2629                         tp->link_config.orig_autoneg = phydev->autoneg;
2630                         tp->link_config.orig_advertising = phydev->advertising;
2631
2632                         advertising = ADVERTISED_TP |
2633                                       ADVERTISED_Pause |
2634                                       ADVERTISED_Autoneg |
2635                                       ADVERTISED_10baseT_Half;
2636
2637                         if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) ||
2638                             device_should_wake) {
2639                                 if (tp->tg3_flags & TG3_FLAG_WOL_SPEED_100MB)
2640                                         advertising |=
2641                                                 ADVERTISED_100baseT_Half |
2642                                                 ADVERTISED_100baseT_Full |
2643                                                 ADVERTISED_10baseT_Full;
2644                                 else
2645                                         advertising |= ADVERTISED_10baseT_Full;
2646                         }
2647
2648                         phydev->advertising = advertising;
2649
2650                         phy_start_aneg(phydev);
2651
2652                         phyid = phydev->drv->phy_id & phydev->drv->phy_id_mask;
2653                         if (phyid != PHY_ID_BCMAC131) {
2654                                 phyid &= PHY_BCM_OUI_MASK;
2655                                 if (phyid == PHY_BCM_OUI_1 ||
2656                                     phyid == PHY_BCM_OUI_2 ||
2657                                     phyid == PHY_BCM_OUI_3)
2658                                         do_low_power = true;
2659                         }
2660                 }
2661         } else {
2662                 do_low_power = true;
2663
2664                 if (!(tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)) {
2665                         tp->phy_flags |= TG3_PHYFLG_IS_LOW_POWER;
2666                         tp->link_config.orig_speed = tp->link_config.speed;
2667                         tp->link_config.orig_duplex = tp->link_config.duplex;
2668                         tp->link_config.orig_autoneg = tp->link_config.autoneg;
2669                 }
2670
2671                 if (!(tp->phy_flags & TG3_PHYFLG_ANY_SERDES)) {
2672                         tp->link_config.speed = SPEED_10;
2673                         tp->link_config.duplex = DUPLEX_HALF;
2674                         tp->link_config.autoneg = AUTONEG_ENABLE;
2675                         tg3_setup_phy(tp, 0);
2676                 }
2677         }
2678
2679         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
2680                 u32 val;
2681
2682                 val = tr32(GRC_VCPU_EXT_CTRL);
2683                 tw32(GRC_VCPU_EXT_CTRL, val | GRC_VCPU_EXT_CTRL_DISABLE_WOL);
2684         } else if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)) {
2685                 int i;
2686                 u32 val;
2687
2688                 for (i = 0; i < 200; i++) {
2689                         tg3_read_mem(tp, NIC_SRAM_FW_ASF_STATUS_MBOX, &val);
2690                         if (val == ~NIC_SRAM_FIRMWARE_MBOX_MAGIC1)
2691                                 break;
2692                         msleep(1);
2693                 }
2694         }
2695         if (tp->tg3_flags & TG3_FLAG_WOL_CAP)
2696                 tg3_write_mem(tp, NIC_SRAM_WOL_MBOX, WOL_SIGNATURE |
2697                                                      WOL_DRV_STATE_SHUTDOWN |
2698                                                      WOL_DRV_WOL |
2699                                                      WOL_SET_MAGIC_PKT);
2700
2701         if (device_should_wake) {
2702                 u32 mac_mode;
2703
2704                 if (!(tp->phy_flags & TG3_PHYFLG_PHY_SERDES)) {
2705                         if (do_low_power) {
2706                                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x5a);
2707                                 udelay(40);
2708                         }
2709
2710                         if (tp->phy_flags & TG3_PHYFLG_MII_SERDES)
2711                                 mac_mode = MAC_MODE_PORT_MODE_GMII;
2712                         else
2713                                 mac_mode = MAC_MODE_PORT_MODE_MII;
2714
2715                         mac_mode |= tp->mac_mode & MAC_MODE_LINK_POLARITY;
2716                         if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
2717                             ASIC_REV_5700) {
2718                                 u32 speed = (tp->tg3_flags &
2719                                              TG3_FLAG_WOL_SPEED_100MB) ?
2720                                              SPEED_100 : SPEED_10;
2721                                 if (tg3_5700_link_polarity(tp, speed))
2722                                         mac_mode |= MAC_MODE_LINK_POLARITY;
2723                                 else
2724                                         mac_mode &= ~MAC_MODE_LINK_POLARITY;
2725                         }
2726                 } else {
2727                         mac_mode = MAC_MODE_PORT_MODE_TBI;
2728                 }
2729
2730                 if (!(tp->tg3_flags2 & TG3_FLG2_5750_PLUS))
2731                         tw32(MAC_LED_CTRL, tp->led_ctrl);
2732
2733                 mac_mode |= MAC_MODE_MAGIC_PKT_ENABLE;
2734                 if (((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
2735                     !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) &&
2736                     ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) ||
2737                      (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)))
2738                         mac_mode |= MAC_MODE_KEEP_FRAME_IN_WOL;
2739
2740                 if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
2741                         mac_mode |= MAC_MODE_APE_TX_EN |
2742                                     MAC_MODE_APE_RX_EN |
2743                                     MAC_MODE_TDE_ENABLE;
2744
2745                 tw32_f(MAC_MODE, mac_mode);
2746                 udelay(100);
2747
2748                 tw32_f(MAC_RX_MODE, RX_MODE_ENABLE);
2749                 udelay(10);
2750         }
2751
2752         if (!(tp->tg3_flags & TG3_FLAG_WOL_SPEED_100MB) &&
2753             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
2754              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)) {
2755                 u32 base_val;
2756
2757                 base_val = tp->pci_clock_ctrl;
2758                 base_val |= (CLOCK_CTRL_RXCLK_DISABLE |
2759                              CLOCK_CTRL_TXCLK_DISABLE);
2760
2761                 tw32_wait_f(TG3PCI_CLOCK_CTRL, base_val | CLOCK_CTRL_ALTCLK |
2762                             CLOCK_CTRL_PWRDOWN_PLL133, 40);
2763         } else if ((tp->tg3_flags2 & TG3_FLG2_5780_CLASS) ||
2764                    (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) ||
2765                    (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)) {
2766                 /* do nothing */
2767         } else if (!((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
2768                      (tp->tg3_flags & TG3_FLAG_ENABLE_ASF))) {
2769                 u32 newbits1, newbits2;
2770
2771                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
2772                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
2773                         newbits1 = (CLOCK_CTRL_RXCLK_DISABLE |
2774                                     CLOCK_CTRL_TXCLK_DISABLE |
2775                                     CLOCK_CTRL_ALTCLK);
2776                         newbits2 = newbits1 | CLOCK_CTRL_44MHZ_CORE;
2777                 } else if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
2778                         newbits1 = CLOCK_CTRL_625_CORE;
2779                         newbits2 = newbits1 | CLOCK_CTRL_ALTCLK;
2780                 } else {
2781                         newbits1 = CLOCK_CTRL_ALTCLK;
2782                         newbits2 = newbits1 | CLOCK_CTRL_44MHZ_CORE;
2783                 }
2784
2785                 tw32_wait_f(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl | newbits1,
2786                             40);
2787
2788                 tw32_wait_f(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl | newbits2,
2789                             40);
2790
2791                 if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
2792                         u32 newbits3;
2793
2794                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
2795                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
2796                                 newbits3 = (CLOCK_CTRL_RXCLK_DISABLE |
2797                                             CLOCK_CTRL_TXCLK_DISABLE |
2798                                             CLOCK_CTRL_44MHZ_CORE);
2799                         } else {
2800                                 newbits3 = CLOCK_CTRL_44MHZ_CORE;
2801                         }
2802
2803                         tw32_wait_f(TG3PCI_CLOCK_CTRL,
2804                                     tp->pci_clock_ctrl | newbits3, 40);
2805                 }
2806         }
2807
2808         if (!(device_should_wake) &&
2809             !(tp->tg3_flags & TG3_FLAG_ENABLE_ASF))
2810                 tg3_power_down_phy(tp, do_low_power);
2811
2812         tg3_frob_aux_power(tp);
2813
2814         /* Workaround for unstable PLL clock */
2815         if ((GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_AX) ||
2816             (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_BX)) {
2817                 u32 val = tr32(0x7d00);
2818
2819                 val &= ~((1 << 16) | (1 << 4) | (1 << 2) | (1 << 1) | 1);
2820                 tw32(0x7d00, val);
2821                 if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)) {
2822                         int err;
2823
2824                         err = tg3_nvram_lock(tp);
2825                         tg3_halt_cpu(tp, RX_CPU_BASE);
2826                         if (!err)
2827                                 tg3_nvram_unlock(tp);
2828                 }
2829         }
2830
2831         tg3_write_sig_post_reset(tp, RESET_KIND_SHUTDOWN);
2832
2833         return 0;
2834 }
2835
2836 static void tg3_power_down(struct tg3 *tp)
2837 {
2838         tg3_power_down_prepare(tp);
2839
2840         pci_wake_from_d3(tp->pdev, tp->tg3_flags & TG3_FLAG_WOL_ENABLE);
2841         pci_set_power_state(tp->pdev, PCI_D3hot);
2842 }
2843
2844 static void tg3_aux_stat_to_speed_duplex(struct tg3 *tp, u32 val, u16 *speed, u8 *duplex)
2845 {
2846         switch (val & MII_TG3_AUX_STAT_SPDMASK) {
2847         case MII_TG3_AUX_STAT_10HALF:
2848                 *speed = SPEED_10;
2849                 *duplex = DUPLEX_HALF;
2850                 break;
2851
2852         case MII_TG3_AUX_STAT_10FULL:
2853                 *speed = SPEED_10;
2854                 *duplex = DUPLEX_FULL;
2855                 break;
2856
2857         case MII_TG3_AUX_STAT_100HALF:
2858                 *speed = SPEED_100;
2859                 *duplex = DUPLEX_HALF;
2860                 break;
2861
2862         case MII_TG3_AUX_STAT_100FULL:
2863                 *speed = SPEED_100;
2864                 *duplex = DUPLEX_FULL;
2865                 break;
2866
2867         case MII_TG3_AUX_STAT_1000HALF:
2868                 *speed = SPEED_1000;
2869                 *duplex = DUPLEX_HALF;
2870                 break;
2871
2872         case MII_TG3_AUX_STAT_1000FULL:
2873                 *speed = SPEED_1000;
2874                 *duplex = DUPLEX_FULL;
2875                 break;
2876
2877         default:
2878                 if (tp->phy_flags & TG3_PHYFLG_IS_FET) {
2879                         *speed = (val & MII_TG3_AUX_STAT_100) ? SPEED_100 :
2880                                  SPEED_10;
2881                         *duplex = (val & MII_TG3_AUX_STAT_FULL) ? DUPLEX_FULL :
2882                                   DUPLEX_HALF;
2883                         break;
2884                 }
2885                 *speed = SPEED_INVALID;
2886                 *duplex = DUPLEX_INVALID;
2887                 break;
2888         }
2889 }
2890
2891 static void tg3_phy_copper_begin(struct tg3 *tp)
2892 {
2893         u32 new_adv;
2894         int i;
2895
2896         if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER) {
2897                 /* Entering low power mode.  Disable gigabit and
2898                  * 100baseT advertisements.
2899                  */
2900                 tg3_writephy(tp, MII_TG3_CTRL, 0);
2901
2902                 new_adv = (ADVERTISE_10HALF | ADVERTISE_10FULL |
2903                            ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
2904                 if (tp->tg3_flags & TG3_FLAG_WOL_SPEED_100MB)
2905                         new_adv |= (ADVERTISE_100HALF | ADVERTISE_100FULL);
2906
2907                 tg3_writephy(tp, MII_ADVERTISE, new_adv);
2908         } else if (tp->link_config.speed == SPEED_INVALID) {
2909                 if (tp->phy_flags & TG3_PHYFLG_10_100_ONLY)
2910                         tp->link_config.advertising &=
2911                                 ~(ADVERTISED_1000baseT_Half |
2912                                   ADVERTISED_1000baseT_Full);
2913
2914                 new_adv = ADVERTISE_CSMA;
2915                 if (tp->link_config.advertising & ADVERTISED_10baseT_Half)
2916                         new_adv |= ADVERTISE_10HALF;
2917                 if (tp->link_config.advertising & ADVERTISED_10baseT_Full)
2918                         new_adv |= ADVERTISE_10FULL;
2919                 if (tp->link_config.advertising & ADVERTISED_100baseT_Half)
2920                         new_adv |= ADVERTISE_100HALF;
2921                 if (tp->link_config.advertising & ADVERTISED_100baseT_Full)
2922                         new_adv |= ADVERTISE_100FULL;
2923
2924                 new_adv |= tg3_advert_flowctrl_1000T(tp->link_config.flowctrl);
2925
2926                 tg3_writephy(tp, MII_ADVERTISE, new_adv);
2927
2928                 if (tp->link_config.advertising &
2929                     (ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full)) {
2930                         new_adv = 0;
2931                         if (tp->link_config.advertising & ADVERTISED_1000baseT_Half)
2932                                 new_adv |= MII_TG3_CTRL_ADV_1000_HALF;
2933                         if (tp->link_config.advertising & ADVERTISED_1000baseT_Full)
2934                                 new_adv |= MII_TG3_CTRL_ADV_1000_FULL;
2935                         if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY) &&
2936                             (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
2937                              tp->pci_chip_rev_id == CHIPREV_ID_5701_B0))
2938                                 new_adv |= (MII_TG3_CTRL_AS_MASTER |
2939                                             MII_TG3_CTRL_ENABLE_AS_MASTER);
2940                         tg3_writephy(tp, MII_TG3_CTRL, new_adv);
2941                 } else {
2942                         tg3_writephy(tp, MII_TG3_CTRL, 0);
2943                 }
2944         } else {
2945                 new_adv = tg3_advert_flowctrl_1000T(tp->link_config.flowctrl);
2946                 new_adv |= ADVERTISE_CSMA;
2947
2948                 /* Asking for a specific link mode. */
2949                 if (tp->link_config.speed == SPEED_1000) {
2950                         tg3_writephy(tp, MII_ADVERTISE, new_adv);
2951
2952                         if (tp->link_config.duplex == DUPLEX_FULL)
2953                                 new_adv = MII_TG3_CTRL_ADV_1000_FULL;
2954                         else
2955                                 new_adv = MII_TG3_CTRL_ADV_1000_HALF;
2956                         if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
2957                             tp->pci_chip_rev_id == CHIPREV_ID_5701_B0)
2958                                 new_adv |= (MII_TG3_CTRL_AS_MASTER |
2959                                             MII_TG3_CTRL_ENABLE_AS_MASTER);
2960                 } else {
2961                         if (tp->link_config.speed == SPEED_100) {
2962                                 if (tp->link_config.duplex == DUPLEX_FULL)
2963                                         new_adv |= ADVERTISE_100FULL;
2964                                 else
2965                                         new_adv |= ADVERTISE_100HALF;
2966                         } else {
2967                                 if (tp->link_config.duplex == DUPLEX_FULL)
2968                                         new_adv |= ADVERTISE_10FULL;
2969                                 else
2970                                         new_adv |= ADVERTISE_10HALF;
2971                         }
2972                         tg3_writephy(tp, MII_ADVERTISE, new_adv);
2973
2974                         new_adv = 0;
2975                 }
2976
2977                 tg3_writephy(tp, MII_TG3_CTRL, new_adv);
2978         }
2979
2980         if (tp->phy_flags & TG3_PHYFLG_EEE_CAP) {
2981                 u32 val;
2982
2983                 tw32(TG3_CPMU_EEE_MODE,
2984                      tr32(TG3_CPMU_EEE_MODE) & ~TG3_CPMU_EEEMD_LPI_ENABLE);
2985
2986                 /* Enable SM_DSP clock and tx 6dB coding. */
2987                 val = MII_TG3_AUXCTL_SHDWSEL_AUXCTL |
2988                       MII_TG3_AUXCTL_ACTL_SMDSP_ENA |
2989                       MII_TG3_AUXCTL_ACTL_TX_6DB;
2990                 tg3_writephy(tp, MII_TG3_AUX_CTRL, val);
2991
2992                 switch (GET_ASIC_REV(tp->pci_chip_rev_id)) {
2993                 case ASIC_REV_5717:
2994                 case ASIC_REV_57765:
2995                         if (!tg3_phydsp_read(tp, MII_TG3_DSP_CH34TP2, &val))
2996                                 tg3_phydsp_write(tp, MII_TG3_DSP_CH34TP2, val |
2997                                                  MII_TG3_DSP_CH34TP2_HIBW01);
2998                         /* Fall through */
2999                 case ASIC_REV_5719:
3000                         val = MII_TG3_DSP_TAP26_ALNOKO |
3001                               MII_TG3_DSP_TAP26_RMRXSTO |
3002                               MII_TG3_DSP_TAP26_OPCSINPT;
3003                         tg3_phydsp_write(tp, MII_TG3_DSP_TAP26, val);
3004                 }
3005
3006                 val = 0;
3007                 if (tp->link_config.autoneg == AUTONEG_ENABLE) {
3008                         /* Advertise 100-BaseTX EEE ability */
3009                         if (tp->link_config.advertising &
3010                             ADVERTISED_100baseT_Full)
3011                                 val |= MDIO_AN_EEE_ADV_100TX;
3012                         /* Advertise 1000-BaseT EEE ability */
3013                         if (tp->link_config.advertising &
3014                             ADVERTISED_1000baseT_Full)
3015                                 val |= MDIO_AN_EEE_ADV_1000T;
3016                 }
3017                 tg3_phy_cl45_write(tp, MDIO_MMD_AN, MDIO_AN_EEE_ADV, val);
3018
3019                 /* Turn off SM_DSP clock. */
3020                 val = MII_TG3_AUXCTL_SHDWSEL_AUXCTL |
3021                       MII_TG3_AUXCTL_ACTL_TX_6DB;
3022                 tg3_writephy(tp, MII_TG3_AUX_CTRL, val);
3023         }
3024
3025         if (tp->link_config.autoneg == AUTONEG_DISABLE &&
3026             tp->link_config.speed != SPEED_INVALID) {
3027                 u32 bmcr, orig_bmcr;
3028
3029                 tp->link_config.active_speed = tp->link_config.speed;
3030                 tp->link_config.active_duplex = tp->link_config.duplex;
3031
3032                 bmcr = 0;
3033                 switch (tp->link_config.speed) {
3034                 default:
3035                 case SPEED_10:
3036                         break;
3037
3038                 case SPEED_100:
3039                         bmcr |= BMCR_SPEED100;
3040                         break;
3041
3042                 case SPEED_1000:
3043                         bmcr |= TG3_BMCR_SPEED1000;
3044                         break;
3045                 }
3046
3047                 if (tp->link_config.duplex == DUPLEX_FULL)
3048                         bmcr |= BMCR_FULLDPLX;
3049
3050                 if (!tg3_readphy(tp, MII_BMCR, &orig_bmcr) &&
3051                     (bmcr != orig_bmcr)) {
3052                         tg3_writephy(tp, MII_BMCR, BMCR_LOOPBACK);
3053                         for (i = 0; i < 1500; i++) {
3054                                 u32 tmp;
3055
3056                                 udelay(10);
3057                                 if (tg3_readphy(tp, MII_BMSR, &tmp) ||
3058                                     tg3_readphy(tp, MII_BMSR, &tmp))
3059                                         continue;
3060                                 if (!(tmp & BMSR_LSTATUS)) {
3061                                         udelay(40);
3062                                         break;
3063                                 }
3064                         }
3065                         tg3_writephy(tp, MII_BMCR, bmcr);
3066                         udelay(40);
3067                 }
3068         } else {
3069                 tg3_writephy(tp, MII_BMCR,
3070                              BMCR_ANENABLE | BMCR_ANRESTART);
3071         }
3072 }
3073
3074 static int tg3_init_5401phy_dsp(struct tg3 *tp)
3075 {
3076         int err;
3077
3078         /* Turn off tap power management. */
3079         /* Set Extended packet length bit */
3080         err  = tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4c20);
3081
3082         err |= tg3_phydsp_write(tp, 0x0012, 0x1804);
3083         err |= tg3_phydsp_write(tp, 0x0013, 0x1204);
3084         err |= tg3_phydsp_write(tp, 0x8006, 0x0132);
3085         err |= tg3_phydsp_write(tp, 0x8006, 0x0232);
3086         err |= tg3_phydsp_write(tp, 0x201f, 0x0a20);
3087
3088         udelay(40);
3089
3090         return err;
3091 }
3092
3093 static int tg3_copper_is_advertising_all(struct tg3 *tp, u32 mask)
3094 {
3095         u32 adv_reg, all_mask = 0;
3096
3097         if (mask & ADVERTISED_10baseT_Half)
3098                 all_mask |= ADVERTISE_10HALF;
3099         if (mask & ADVERTISED_10baseT_Full)
3100                 all_mask |= ADVERTISE_10FULL;
3101         if (mask & ADVERTISED_100baseT_Half)
3102                 all_mask |= ADVERTISE_100HALF;
3103         if (mask & ADVERTISED_100baseT_Full)
3104                 all_mask |= ADVERTISE_100FULL;
3105
3106         if (tg3_readphy(tp, MII_ADVERTISE, &adv_reg))
3107                 return 0;
3108
3109         if ((adv_reg & all_mask) != all_mask)
3110                 return 0;
3111         if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY)) {
3112                 u32 tg3_ctrl;
3113
3114                 all_mask = 0;
3115                 if (mask & ADVERTISED_1000baseT_Half)
3116                         all_mask |= ADVERTISE_1000HALF;
3117                 if (mask & ADVERTISED_1000baseT_Full)
3118                         all_mask |= ADVERTISE_1000FULL;
3119
3120                 if (tg3_readphy(tp, MII_TG3_CTRL, &tg3_ctrl))
3121                         return 0;
3122
3123                 if ((tg3_ctrl & all_mask) != all_mask)
3124                         return 0;
3125         }
3126         return 1;
3127 }
3128
3129 static int tg3_adv_1000T_flowctrl_ok(struct tg3 *tp, u32 *lcladv, u32 *rmtadv)
3130 {
3131         u32 curadv, reqadv;
3132
3133         if (tg3_readphy(tp, MII_ADVERTISE, lcladv))
3134                 return 1;
3135
3136         curadv = *lcladv & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
3137         reqadv = tg3_advert_flowctrl_1000T(tp->link_config.flowctrl);
3138
3139         if (tp->link_config.active_duplex == DUPLEX_FULL) {
3140                 if (curadv != reqadv)
3141                         return 0;
3142
3143                 if (tp->tg3_flags & TG3_FLAG_PAUSE_AUTONEG)
3144                         tg3_readphy(tp, MII_LPA, rmtadv);
3145         } else {
3146                 /* Reprogram the advertisement register, even if it
3147                  * does not affect the current link.  If the link
3148                  * gets renegotiated in the future, we can save an
3149                  * additional renegotiation cycle by advertising
3150                  * it correctly in the first place.
3151                  */
3152                 if (curadv != reqadv) {
3153                         *lcladv &= ~(ADVERTISE_PAUSE_CAP |
3154                                      ADVERTISE_PAUSE_ASYM);
3155                         tg3_writephy(tp, MII_ADVERTISE, *lcladv | reqadv);
3156                 }
3157         }
3158
3159         return 1;
3160 }
3161
3162 static int tg3_setup_copper_phy(struct tg3 *tp, int force_reset)
3163 {
3164         int current_link_up;
3165         u32 bmsr, val;
3166         u32 lcl_adv, rmt_adv;
3167         u16 current_speed;
3168         u8 current_duplex;
3169         int i, err;
3170
3171         tw32(MAC_EVENT, 0);
3172
3173         tw32_f(MAC_STATUS,
3174              (MAC_STATUS_SYNC_CHANGED |
3175               MAC_STATUS_CFG_CHANGED |
3176               MAC_STATUS_MI_COMPLETION |
3177               MAC_STATUS_LNKSTATE_CHANGED));
3178         udelay(40);
3179
3180         if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
3181                 tw32_f(MAC_MI_MODE,
3182                      (tp->mi_mode & ~MAC_MI_MODE_AUTO_POLL));
3183                 udelay(80);
3184         }
3185
3186         tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x02);
3187
3188         /* Some third-party PHYs need to be reset on link going
3189          * down.
3190          */
3191         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
3192              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
3193              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) &&
3194             netif_carrier_ok(tp->dev)) {
3195                 tg3_readphy(tp, MII_BMSR, &bmsr);
3196                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
3197                     !(bmsr & BMSR_LSTATUS))
3198                         force_reset = 1;
3199         }
3200         if (force_reset)
3201                 tg3_phy_reset(tp);
3202
3203         if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5401) {
3204                 tg3_readphy(tp, MII_BMSR, &bmsr);
3205                 if (tg3_readphy(tp, MII_BMSR, &bmsr) ||
3206                     !(tp->tg3_flags & TG3_FLAG_INIT_COMPLETE))
3207                         bmsr = 0;
3208
3209                 if (!(bmsr & BMSR_LSTATUS)) {
3210                         err = tg3_init_5401phy_dsp(tp);
3211                         if (err)
3212                                 return err;
3213
3214                         tg3_readphy(tp, MII_BMSR, &bmsr);
3215                         for (i = 0; i < 1000; i++) {
3216                                 udelay(10);
3217                                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
3218                                     (bmsr & BMSR_LSTATUS)) {
3219                                         udelay(40);
3220                                         break;
3221                                 }
3222                         }
3223
3224                         if ((tp->phy_id & TG3_PHY_ID_REV_MASK) ==
3225                             TG3_PHY_REV_BCM5401_B0 &&
3226                             !(bmsr & BMSR_LSTATUS) &&
3227                             tp->link_config.active_speed == SPEED_1000) {
3228                                 err = tg3_phy_reset(tp);
3229                                 if (!err)
3230                                         err = tg3_init_5401phy_dsp(tp);
3231                                 if (err)
3232                                         return err;
3233                         }
3234                 }
3235         } else if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
3236                    tp->pci_chip_rev_id == CHIPREV_ID_5701_B0) {
3237                 /* 5701 {A0,B0} CRC bug workaround */
3238                 tg3_writephy(tp, 0x15, 0x0a75);
3239                 tg3_writephy(tp, MII_TG3_MISC_SHDW, 0x8c68);
3240                 tg3_writephy(tp, MII_TG3_MISC_SHDW, 0x8d68);
3241                 tg3_writephy(tp, MII_TG3_MISC_SHDW, 0x8c68);
3242         }
3243
3244         /* Clear pending interrupts... */
3245         tg3_readphy(tp, MII_TG3_ISTAT, &val);
3246         tg3_readphy(tp, MII_TG3_ISTAT, &val);
3247
3248         if (tp->phy_flags & TG3_PHYFLG_USE_MI_INTERRUPT)
3249                 tg3_writephy(tp, MII_TG3_IMASK, ~MII_TG3_INT_LINKCHG);
3250         else if (!(tp->phy_flags & TG3_PHYFLG_IS_FET))
3251                 tg3_writephy(tp, MII_TG3_IMASK, ~0);
3252
3253         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
3254             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
3255                 if (tp->led_ctrl == LED_CTRL_MODE_PHY_1)
3256                         tg3_writephy(tp, MII_TG3_EXT_CTRL,
3257                                      MII_TG3_EXT_CTRL_LNK3_LED_MODE);
3258                 else
3259                         tg3_writephy(tp, MII_TG3_EXT_CTRL, 0);
3260         }
3261
3262         current_link_up = 0;
3263         current_speed = SPEED_INVALID;
3264         current_duplex = DUPLEX_INVALID;
3265
3266         if (tp->phy_flags & TG3_PHYFLG_CAPACITIVE_COUPLING) {
3267                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4007);
3268                 tg3_readphy(tp, MII_TG3_AUX_CTRL, &val);
3269                 if (!(val & (1 << 10))) {
3270                         val |= (1 << 10);
3271                         tg3_writephy(tp, MII_TG3_AUX_CTRL, val);
3272                         goto relink;
3273                 }
3274         }
3275
3276         bmsr = 0;
3277         for (i = 0; i < 100; i++) {
3278                 tg3_readphy(tp, MII_BMSR, &bmsr);
3279                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
3280                     (bmsr & BMSR_LSTATUS))
3281                         break;
3282                 udelay(40);
3283         }
3284
3285         if (bmsr & BMSR_LSTATUS) {
3286                 u32 aux_stat, bmcr;
3287
3288                 tg3_readphy(tp, MII_TG3_AUX_STAT, &aux_stat);
3289                 for (i = 0; i < 2000; i++) {
3290                         udelay(10);
3291                         if (!tg3_readphy(tp, MII_TG3_AUX_STAT, &aux_stat) &&
3292                             aux_stat)
3293                                 break;
3294                 }
3295
3296                 tg3_aux_stat_to_speed_duplex(tp, aux_stat,
3297                                              &current_speed,
3298                                              &current_duplex);
3299
3300                 bmcr = 0;
3301                 for (i = 0; i < 200; i++) {
3302                         tg3_readphy(tp, MII_BMCR, &bmcr);
3303                         if (tg3_readphy(tp, MII_BMCR, &bmcr))
3304                                 continue;
3305                         if (bmcr && bmcr != 0x7fff)
3306                                 break;
3307                         udelay(10);
3308                 }
3309
3310                 lcl_adv = 0;
3311                 rmt_adv = 0;
3312
3313                 tp->link_config.active_speed = current_speed;
3314                 tp->link_config.active_duplex = current_duplex;
3315
3316                 if (tp->link_config.autoneg == AUTONEG_ENABLE) {
3317                         if ((bmcr & BMCR_ANENABLE) &&
3318                             tg3_copper_is_advertising_all(tp,
3319                                                 tp->link_config.advertising)) {
3320                                 if (tg3_adv_1000T_flowctrl_ok(tp, &lcl_adv,
3321                                                                   &rmt_adv))
3322                                         current_link_up = 1;
3323                         }
3324                 } else {
3325                         if (!(bmcr & BMCR_ANENABLE) &&
3326                             tp->link_config.speed == current_speed &&
3327                             tp->link_config.duplex == current_duplex &&
3328                             tp->link_config.flowctrl ==
3329                             tp->link_config.active_flowctrl) {
3330                                 current_link_up = 1;
3331                         }
3332                 }
3333
3334                 if (current_link_up == 1 &&
3335                     tp->link_config.active_duplex == DUPLEX_FULL)
3336                         tg3_setup_flow_control(tp, lcl_adv, rmt_adv);
3337         }
3338
3339 relink:
3340         if (current_link_up == 0 || (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)) {
3341                 tg3_phy_copper_begin(tp);
3342
3343                 tg3_readphy(tp, MII_BMSR, &bmsr);
3344                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
3345                     (bmsr & BMSR_LSTATUS))
3346                         current_link_up = 1;
3347         }
3348
3349         tp->mac_mode &= ~MAC_MODE_PORT_MODE_MASK;
3350         if (current_link_up == 1) {
3351                 if (tp->link_config.active_speed == SPEED_100 ||
3352                     tp->link_config.active_speed == SPEED_10)
3353                         tp->mac_mode |= MAC_MODE_PORT_MODE_MII;
3354                 else
3355                         tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
3356         } else if (tp->phy_flags & TG3_PHYFLG_IS_FET)
3357                 tp->mac_mode |= MAC_MODE_PORT_MODE_MII;
3358         else
3359                 tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
3360
3361         tp->mac_mode &= ~MAC_MODE_HALF_DUPLEX;
3362         if (tp->link_config.active_duplex == DUPLEX_HALF)
3363                 tp->mac_mode |= MAC_MODE_HALF_DUPLEX;
3364
3365         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) {
3366                 if (current_link_up == 1 &&
3367                     tg3_5700_link_polarity(tp, tp->link_config.active_speed))
3368                         tp->mac_mode |= MAC_MODE_LINK_POLARITY;
3369                 else
3370                         tp->mac_mode &= ~MAC_MODE_LINK_POLARITY;
3371         }
3372
3373         /* ??? Without this setting Netgear GA302T PHY does not
3374          * ??? send/receive packets...
3375          */
3376         if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5411 &&
3377             tp->pci_chip_rev_id == CHIPREV_ID_5700_ALTIMA) {
3378                 tp->mi_mode |= MAC_MI_MODE_AUTO_POLL;
3379                 tw32_f(MAC_MI_MODE, tp->mi_mode);
3380                 udelay(80);
3381         }
3382
3383         tw32_f(MAC_MODE, tp->mac_mode);
3384         udelay(40);
3385
3386         tg3_phy_eee_adjust(tp, current_link_up);
3387
3388         if (tp->tg3_flags & TG3_FLAG_USE_LINKCHG_REG) {
3389                 /* Polled via timer. */
3390                 tw32_f(MAC_EVENT, 0);
3391         } else {
3392                 tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
3393         }
3394         udelay(40);
3395
3396         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 &&
3397             current_link_up == 1 &&
3398             tp->link_config.active_speed == SPEED_1000 &&
3399             ((tp->tg3_flags & TG3_FLAG_PCIX_MODE) ||
3400              (tp->tg3_flags & TG3_FLAG_PCI_HIGH_SPEED))) {
3401                 udelay(120);
3402                 tw32_f(MAC_STATUS,
3403                      (MAC_STATUS_SYNC_CHANGED |
3404                       MAC_STATUS_CFG_CHANGED));
3405                 udelay(40);
3406                 tg3_write_mem(tp,
3407                               NIC_SRAM_FIRMWARE_MBOX,
3408                               NIC_SRAM_FIRMWARE_MBOX_MAGIC2);
3409         }
3410
3411         /* Prevent send BD corruption. */
3412         if (tp->tg3_flags3 & TG3_FLG3_CLKREQ_BUG) {
3413                 u16 oldlnkctl, newlnkctl;
3414
3415                 pci_read_config_word(tp->pdev,
3416                                      tp->pcie_cap + PCI_EXP_LNKCTL,
3417                                      &oldlnkctl);
3418                 if (tp->link_config.active_speed == SPEED_100 ||
3419                     tp->link_config.active_speed == SPEED_10)
3420                         newlnkctl = oldlnkctl & ~PCI_EXP_LNKCTL_CLKREQ_EN;
3421                 else
3422                         newlnkctl = oldlnkctl | PCI_EXP_LNKCTL_CLKREQ_EN;
3423                 if (newlnkctl != oldlnkctl)
3424                         pci_write_config_word(tp->pdev,
3425                                               tp->pcie_cap + PCI_EXP_LNKCTL,
3426                                               newlnkctl);
3427         }
3428
3429         if (current_link_up != netif_carrier_ok(tp->dev)) {
3430                 if (current_link_up)
3431                         netif_carrier_on(tp->dev);
3432                 else
3433                         netif_carrier_off(tp->dev);
3434                 tg3_link_report(tp);
3435         }
3436
3437         return 0;
3438 }
3439
3440 struct tg3_fiber_aneginfo {
3441         int state;
3442 #define ANEG_STATE_UNKNOWN              0
3443 #define ANEG_STATE_AN_ENABLE            1
3444 #define ANEG_STATE_RESTART_INIT         2
3445 #define ANEG_STATE_RESTART              3
3446 #define ANEG_STATE_DISABLE_LINK_OK      4
3447 #define ANEG_STATE_ABILITY_DETECT_INIT  5
3448 #define ANEG_STATE_ABILITY_DETECT       6
3449 #define ANEG_STATE_ACK_DETECT_INIT      7
3450 #define ANEG_STATE_ACK_DETECT           8
3451 #define ANEG_STATE_COMPLETE_ACK_INIT    9
3452 #define ANEG_STATE_COMPLETE_ACK         10
3453 #define ANEG_STATE_IDLE_DETECT_INIT     11
3454 #define ANEG_STATE_IDLE_DETECT          12
3455 #define ANEG_STATE_LINK_OK              13
3456 #define ANEG_STATE_NEXT_PAGE_WAIT_INIT  14
3457 #define ANEG_STATE_NEXT_PAGE_WAIT       15
3458
3459         u32 flags;
3460 #define MR_AN_ENABLE            0x00000001
3461 #define MR_RESTART_AN           0x00000002
3462 #define MR_AN_COMPLETE          0x00000004
3463 #define MR_PAGE_RX              0x00000008
3464 #define MR_NP_LOADED            0x00000010
3465 #define MR_TOGGLE_TX            0x00000020
3466 #define MR_LP_ADV_FULL_DUPLEX   0x00000040
3467 #define MR_LP_ADV_HALF_DUPLEX   0x00000080
3468 #define MR_LP_ADV_SYM_PAUSE     0x00000100
3469 #define MR_LP_ADV_ASYM_PAUSE    0x00000200
3470 #define MR_LP_ADV_REMOTE_FAULT1 0x00000400
3471 #define MR_LP_ADV_REMOTE_FAULT2 0x00000800
3472 #define MR_LP_ADV_NEXT_PAGE     0x00001000
3473 #define MR_TOGGLE_RX            0x00002000
3474 #define MR_NP_RX                0x00004000
3475
3476 #define MR_LINK_OK              0x80000000
3477
3478         unsigned long link_time, cur_time;
3479
3480         u32 ability_match_cfg;
3481         int ability_match_count;
3482
3483         char ability_match, idle_match, ack_match;
3484
3485         u32 txconfig, rxconfig;
3486 #define ANEG_CFG_NP             0x00000080
3487 #define ANEG_CFG_ACK            0x00000040
3488 #define ANEG_CFG_RF2            0x00000020
3489 #define ANEG_CFG_RF1            0x00000010
3490 #define ANEG_CFG_PS2            0x00000001
3491 #define ANEG_CFG_PS1            0x00008000
3492 #define ANEG_CFG_HD             0x00004000
3493 #define ANEG_CFG_FD             0x00002000
3494 #define ANEG_CFG_INVAL          0x00001f06
3495
3496 };
3497 #define ANEG_OK         0
3498 #define ANEG_DONE       1
3499 #define ANEG_TIMER_ENAB 2
3500 #define ANEG_FAILED     -1
3501
3502 #define ANEG_STATE_SETTLE_TIME  10000
3503
3504 static int tg3_fiber_aneg_smachine(struct tg3 *tp,
3505                                    struct tg3_fiber_aneginfo *ap)
3506 {
3507         u16 flowctrl;
3508         unsigned long delta;
3509         u32 rx_cfg_reg;
3510         int ret;
3511
3512         if (ap->state == ANEG_STATE_UNKNOWN) {
3513                 ap->rxconfig = 0;
3514                 ap->link_time = 0;
3515                 ap->cur_time = 0;
3516                 ap->ability_match_cfg = 0;
3517                 ap->ability_match_count = 0;
3518                 ap->ability_match = 0;
3519                 ap->idle_match = 0;
3520                 ap->ack_match = 0;
3521         }
3522         ap->cur_time++;
3523
3524         if (tr32(MAC_STATUS) & MAC_STATUS_RCVD_CFG) {
3525                 rx_cfg_reg = tr32(MAC_RX_AUTO_NEG);
3526
3527                 if (rx_cfg_reg != ap->ability_match_cfg) {
3528                         ap->ability_match_cfg = rx_cfg_reg;
3529                         ap->ability_match = 0;
3530                         ap->ability_match_count = 0;
3531                 } else {
3532                         if (++ap->ability_match_count > 1) {
3533                                 ap->ability_match = 1;
3534                                 ap->ability_match_cfg = rx_cfg_reg;
3535                         }
3536                 }
3537                 if (rx_cfg_reg & ANEG_CFG_ACK)
3538                         ap->ack_match = 1;
3539                 else
3540                         ap->ack_match = 0;
3541
3542                 ap->idle_match = 0;
3543         } else {
3544                 ap->idle_match = 1;
3545                 ap->ability_match_cfg = 0;
3546                 ap->ability_match_count = 0;
3547                 ap->ability_match = 0;
3548                 ap->ack_match = 0;
3549
3550                 rx_cfg_reg = 0;
3551         }
3552
3553         ap->rxconfig = rx_cfg_reg;
3554         ret = ANEG_OK;
3555
3556         switch (ap->state) {
3557         case ANEG_STATE_UNKNOWN:
3558                 if (ap->flags & (MR_AN_ENABLE | MR_RESTART_AN))
3559                         ap->state = ANEG_STATE_AN_ENABLE;
3560
3561                 /* fallthru */
3562         case ANEG_STATE_AN_ENABLE:
3563                 ap->flags &= ~(MR_AN_COMPLETE | MR_PAGE_RX);
3564                 if (ap->flags & MR_AN_ENABLE) {
3565                         ap->link_time = 0;
3566                         ap->cur_time = 0;
3567                         ap->ability_match_cfg = 0;
3568                         ap->ability_match_count = 0;
3569                         ap->ability_match = 0;
3570                         ap->idle_match = 0;
3571                         ap->ack_match = 0;
3572
3573                         ap->state = ANEG_STATE_RESTART_INIT;
3574                 } else {
3575                         ap->state = ANEG_STATE_DISABLE_LINK_OK;
3576                 }
3577                 break;
3578
3579         case ANEG_STATE_RESTART_INIT:
3580                 ap->link_time = ap->cur_time;
3581                 ap->flags &= ~(MR_NP_LOADED);
3582                 ap->txconfig = 0;
3583                 tw32(MAC_TX_AUTO_NEG, 0);
3584                 tp->mac_mode |= MAC_MODE_SEND_CONFIGS;
3585                 tw32_f(MAC_MODE, tp->mac_mode);
3586                 udelay(40);
3587
3588                 ret = ANEG_TIMER_ENAB;
3589                 ap->state = ANEG_STATE_RESTART;
3590
3591                 /* fallthru */
3592         case ANEG_STATE_RESTART:
3593                 delta = ap->cur_time - ap->link_time;
3594                 if (delta > ANEG_STATE_SETTLE_TIME)
3595                         ap->state = ANEG_STATE_ABILITY_DETECT_INIT;
3596                 else
3597                         ret = ANEG_TIMER_ENAB;
3598                 break;
3599
3600         case ANEG_STATE_DISABLE_LINK_OK:
3601                 ret = ANEG_DONE;
3602                 break;
3603
3604         case ANEG_STATE_ABILITY_DETECT_INIT:
3605                 ap->flags &= ~(MR_TOGGLE_TX);
3606                 ap->txconfig = ANEG_CFG_FD;
3607                 flowctrl = tg3_advert_flowctrl_1000X(tp->link_config.flowctrl);
3608                 if (flowctrl & ADVERTISE_1000XPAUSE)
3609                         ap->txconfig |= ANEG_CFG_PS1;
3610                 if (flowctrl & ADVERTISE_1000XPSE_ASYM)
3611                         ap->txconfig |= ANEG_CFG_PS2;
3612                 tw32(MAC_TX_AUTO_NEG, ap->txconfig);
3613                 tp->mac_mode |= MAC_MODE_SEND_CONFIGS;
3614                 tw32_f(MAC_MODE, tp->mac_mode);
3615                 udelay(40);
3616
3617                 ap->state = ANEG_STATE_ABILITY_DETECT;
3618                 break;
3619
3620         case ANEG_STATE_ABILITY_DETECT:
3621                 if (ap->ability_match != 0 && ap->rxconfig != 0)
3622                         ap->state = ANEG_STATE_ACK_DETECT_INIT;
3623                 break;
3624
3625         case ANEG_STATE_ACK_DETECT_INIT:
3626                 ap->txconfig |= ANEG_CFG_ACK;
3627                 tw32(MAC_TX_AUTO_NEG, ap->txconfig);
3628                 tp->mac_mode |= MAC_MODE_SEND_CONFIGS;
3629                 tw32_f(MAC_MODE, tp->mac_mode);
3630                 udelay(40);
3631
3632                 ap->state = ANEG_STATE_ACK_DETECT;
3633
3634                 /* fallthru */
3635         case ANEG_STATE_ACK_DETECT:
3636                 if (ap->ack_match != 0) {
3637                         if ((ap->rxconfig & ~ANEG_CFG_ACK) ==
3638                             (ap->ability_match_cfg & ~ANEG_CFG_ACK)) {
3639                                 ap->state = ANEG_STATE_COMPLETE_ACK_INIT;
3640                         } else {
3641                                 ap->state = ANEG_STATE_AN_ENABLE;
3642                         }
3643                 } else if (ap->ability_match != 0 &&
3644                            ap->rxconfig == 0) {
3645                         ap->state = ANEG_STATE_AN_ENABLE;
3646                 }
3647                 break;
3648
3649         case ANEG_STATE_COMPLETE_ACK_INIT:
3650                 if (ap->rxconfig & ANEG_CFG_INVAL) {
3651                         ret = ANEG_FAILED;
3652                         break;
3653                 }
3654                 ap->flags &= ~(MR_LP_ADV_FULL_DUPLEX |
3655                                MR_LP_ADV_HALF_DUPLEX |
3656                                MR_LP_ADV_SYM_PAUSE |
3657                                MR_LP_ADV_ASYM_PAUSE |
3658                                MR_LP_ADV_REMOTE_FAULT1 |
3659                                MR_LP_ADV_REMOTE_FAULT2 |
3660                                MR_LP_ADV_NEXT_PAGE |
3661                                MR_TOGGLE_RX |
3662                                MR_NP_RX);
3663                 if (ap->rxconfig & ANEG_CFG_FD)
3664                         ap->flags |= MR_LP_ADV_FULL_DUPLEX;
3665                 if (ap->rxconfig & ANEG_CFG_HD)
3666                         ap->flags |= MR_LP_ADV_HALF_DUPLEX;
3667                 if (ap->rxconfig & ANEG_CFG_PS1)
3668                         ap->flags |= MR_LP_ADV_SYM_PAUSE;
3669                 if (ap->rxconfig & ANEG_CFG_PS2)
3670                         ap->flags |= MR_LP_ADV_ASYM_PAUSE;
3671                 if (ap->rxconfig & ANEG_CFG_RF1)
3672                         ap->flags |= MR_LP_ADV_REMOTE_FAULT1;
3673                 if (ap->rxconfig & ANEG_CFG_RF2)
3674                         ap->flags |= MR_LP_ADV_REMOTE_FAULT2;
3675                 if (ap->rxconfig & ANEG_CFG_NP)
3676                         ap->flags |= MR_LP_ADV_NEXT_PAGE;
3677
3678                 ap->link_time = ap->cur_time;
3679
3680                 ap->flags ^= (MR_TOGGLE_TX);
3681                 if (ap->rxconfig & 0x0008)
3682                         ap->flags |= MR_TOGGLE_RX;
3683                 if (ap->rxconfig & ANEG_CFG_NP)
3684                         ap->flags |= MR_NP_RX;
3685                 ap->flags |= MR_PAGE_RX;
3686
3687                 ap->state = ANEG_STATE_COMPLETE_ACK;
3688                 ret = ANEG_TIMER_ENAB;
3689                 break;
3690
3691         case ANEG_STATE_COMPLETE_ACK:
3692                 if (ap->ability_match != 0 &&
3693                     ap->rxconfig == 0) {
3694                         ap->state = ANEG_STATE_AN_ENABLE;
3695                         break;
3696                 }
3697                 delta = ap->cur_time - ap->link_time;
3698                 if (delta > ANEG_STATE_SETTLE_TIME) {
3699                         if (!(ap->flags & (MR_LP_ADV_NEXT_PAGE))) {
3700                                 ap->state = ANEG_STATE_IDLE_DETECT_INIT;
3701                         } else {
3702                                 if ((ap->txconfig & ANEG_CFG_NP) == 0 &&
3703                                     !(ap->flags & MR_NP_RX)) {
3704                                         ap->state = ANEG_STATE_IDLE_DETECT_INIT;
3705                                 } else {
3706                                         ret = ANEG_FAILED;
3707                                 }
3708                         }
3709                 }
3710                 break;
3711
3712         case ANEG_STATE_IDLE_DETECT_INIT:
3713                 ap->link_time = ap->cur_time;
3714                 tp->mac_mode &= ~MAC_MODE_SEND_CONFIGS;
3715                 tw32_f(MAC_MODE, tp->mac_mode);
3716                 udelay(40);
3717
3718                 ap->state = ANEG_STATE_IDLE_DETECT;
3719                 ret = ANEG_TIMER_ENAB;
3720                 break;
3721
3722         case ANEG_STATE_IDLE_DETECT:
3723                 if (ap->ability_match != 0 &&
3724                     ap->rxconfig == 0) {
3725                         ap->state = ANEG_STATE_AN_ENABLE;
3726                         break;
3727                 }
3728                 delta = ap->cur_time - ap->link_time;
3729                 if (delta > ANEG_STATE_SETTLE_TIME) {
3730                         /* XXX another gem from the Broadcom driver :( */
3731                         ap->state = ANEG_STATE_LINK_OK;
3732                 }
3733                 break;
3734
3735         case ANEG_STATE_LINK_OK:
3736                 ap->flags |= (MR_AN_COMPLETE | MR_LINK_OK);
3737                 ret = ANEG_DONE;
3738                 break;
3739
3740         case ANEG_STATE_NEXT_PAGE_WAIT_INIT:
3741                 /* ??? unimplemented */
3742                 break;
3743
3744         case ANEG_STATE_NEXT_PAGE_WAIT:
3745                 /* ??? unimplemented */
3746                 break;
3747
3748         default:
3749                 ret = ANEG_FAILED;
3750                 break;
3751         }
3752
3753         return ret;
3754 }
3755
3756 static int fiber_autoneg(struct tg3 *tp, u32 *txflags, u32 *rxflags)
3757 {
3758         int res = 0;
3759         struct tg3_fiber_aneginfo aninfo;
3760         int status = ANEG_FAILED;
3761         unsigned int tick;
3762         u32 tmp;
3763
3764         tw32_f(MAC_TX_AUTO_NEG, 0);
3765
3766         tmp = tp->mac_mode & ~MAC_MODE_PORT_MODE_MASK;
3767         tw32_f(MAC_MODE, tmp | MAC_MODE_PORT_MODE_GMII);
3768         udelay(40);
3769
3770         tw32_f(MAC_MODE, tp->mac_mode | MAC_MODE_SEND_CONFIGS);
3771         udelay(40);
3772
3773         memset(&aninfo, 0, sizeof(aninfo));
3774         aninfo.flags |= MR_AN_ENABLE;
3775         aninfo.state = ANEG_STATE_UNKNOWN;
3776         aninfo.cur_time = 0;
3777         tick = 0;
3778         while (++tick < 195000) {
3779                 status = tg3_fiber_aneg_smachine(tp, &aninfo);
3780                 if (status == ANEG_DONE || status == ANEG_FAILED)
3781                         break;
3782
3783                 udelay(1);
3784         }
3785
3786         tp->mac_mode &= ~MAC_MODE_SEND_CONFIGS;
3787         tw32_f(MAC_MODE, tp->mac_mode);
3788         udelay(40);
3789
3790         *txflags = aninfo.txconfig;
3791         *rxflags = aninfo.flags;
3792
3793         if (status == ANEG_DONE &&
3794             (aninfo.flags & (MR_AN_COMPLETE | MR_LINK_OK |
3795                              MR_LP_ADV_FULL_DUPLEX)))
3796                 res = 1;
3797
3798         return res;
3799 }
3800
3801 static void tg3_init_bcm8002(struct tg3 *tp)
3802 {
3803         u32 mac_status = tr32(MAC_STATUS);
3804         int i;
3805
3806         /* Reset when initting first time or we have a link. */
3807         if ((tp->tg3_flags & TG3_FLAG_INIT_COMPLETE) &&
3808             !(mac_status & MAC_STATUS_PCS_SYNCED))
3809                 return;
3810
3811         /* Set PLL lock range. */
3812         tg3_writephy(tp, 0x16, 0x8007);
3813
3814         /* SW reset */
3815         tg3_writephy(tp, MII_BMCR, BMCR_RESET);
3816
3817         /* Wait for reset to complete. */
3818         /* XXX schedule_timeout() ... */
3819         for (i = 0; i < 500; i++)
3820                 udelay(10);
3821
3822         /* Config mode; select PMA/Ch 1 regs. */
3823         tg3_writephy(tp, 0x10, 0x8411);
3824
3825         /* Enable auto-lock and comdet, select txclk for tx. */
3826         tg3_writephy(tp, 0x11, 0x0a10);
3827
3828         tg3_writephy(tp, 0x18, 0x00a0);
3829         tg3_writephy(tp, 0x16, 0x41ff);
3830
3831         /* Assert and deassert POR. */
3832         tg3_writephy(tp, 0x13, 0x0400);
3833         udelay(40);
3834         tg3_writephy(tp, 0x13, 0x0000);
3835
3836         tg3_writephy(tp, 0x11, 0x0a50);
3837         udelay(40);
3838         tg3_writephy(tp, 0x11, 0x0a10);
3839
3840         /* Wait for signal to stabilize */
3841         /* XXX schedule_timeout() ... */
3842         for (i = 0; i < 15000; i++)
3843                 udelay(10);
3844
3845         /* Deselect the channel register so we can read the PHYID
3846          * later.
3847          */
3848         tg3_writephy(tp, 0x10, 0x8011);
3849 }
3850
3851 static int tg3_setup_fiber_hw_autoneg(struct tg3 *tp, u32 mac_status)
3852 {
3853         u16 flowctrl;
3854         u32 sg_dig_ctrl, sg_dig_status;
3855         u32 serdes_cfg, expected_sg_dig_ctrl;
3856         int workaround, port_a;
3857         int current_link_up;
3858
3859         serdes_cfg = 0;
3860         expected_sg_dig_ctrl = 0;
3861         workaround = 0;
3862         port_a = 1;
3863         current_link_up = 0;
3864
3865         if (tp->pci_chip_rev_id != CHIPREV_ID_5704_A0 &&
3866             tp->pci_chip_rev_id != CHIPREV_ID_5704_A1) {
3867                 workaround = 1;
3868                 if (tr32(TG3PCI_DUAL_MAC_CTRL) & DUAL_MAC_CTRL_ID)
3869                         port_a = 0;
3870
3871                 /* preserve bits 0-11,13,14 for signal pre-emphasis */
3872                 /* preserve bits 20-23 for voltage regulator */
3873                 serdes_cfg = tr32(MAC_SERDES_CFG) & 0x00f06fff;
3874         }
3875
3876         sg_dig_ctrl = tr32(SG_DIG_CTRL);
3877
3878         if (tp->link_config.autoneg != AUTONEG_ENABLE) {
3879                 if (sg_dig_ctrl & SG_DIG_USING_HW_AUTONEG) {
3880                         if (workaround) {
3881                                 u32 val = serdes_cfg;
3882
3883                                 if (port_a)
3884                                         val |= 0xc010000;
3885                                 else
3886                                         val |= 0x4010000;
3887                                 tw32_f(MAC_SERDES_CFG, val);
3888                         }
3889
3890                         tw32_f(SG_DIG_CTRL, SG_DIG_COMMON_SETUP);
3891                 }
3892                 if (mac_status & MAC_STATUS_PCS_SYNCED) {
3893                         tg3_setup_flow_control(tp, 0, 0);
3894                         current_link_up = 1;
3895                 }
3896                 goto out;
3897         }
3898
3899         /* Want auto-negotiation.  */
3900         expected_sg_dig_ctrl = SG_DIG_USING_HW_AUTONEG | SG_DIG_COMMON_SETUP;
3901
3902         flowctrl = tg3_advert_flowctrl_1000X(tp->link_config.flowctrl);
3903         if (flowctrl & ADVERTISE_1000XPAUSE)
3904                 expected_sg_dig_ctrl |= SG_DIG_PAUSE_CAP;
3905         if (flowctrl & ADVERTISE_1000XPSE_ASYM)
3906                 expected_sg_dig_ctrl |= SG_DIG_ASYM_PAUSE;
3907
3908         if (sg_dig_ctrl != expected_sg_dig_ctrl) {
3909                 if ((tp->phy_flags & TG3_PHYFLG_PARALLEL_DETECT) &&
3910                     tp->serdes_counter &&
3911                     ((mac_status & (MAC_STATUS_PCS_SYNCED |
3912                                     MAC_STATUS_RCVD_CFG)) ==
3913                      MAC_STATUS_PCS_SYNCED)) {
3914                         tp->serdes_counter--;
3915                         current_link_up = 1;
3916                         goto out;
3917                 }
3918 restart_autoneg:
3919                 if (workaround)
3920                         tw32_f(MAC_SERDES_CFG, serdes_cfg | 0xc011000);
3921                 tw32_f(SG_DIG_CTRL, expected_sg_dig_ctrl | SG_DIG_SOFT_RESET);
3922                 udelay(5);
3923                 tw32_f(SG_DIG_CTRL, expected_sg_dig_ctrl);
3924
3925                 tp->serdes_counter = SERDES_AN_TIMEOUT_5704S;
3926                 tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
3927         } else if (mac_status & (MAC_STATUS_PCS_SYNCED |
3928                                  MAC_STATUS_SIGNAL_DET)) {
3929                 sg_dig_status = tr32(SG_DIG_STATUS);
3930                 mac_status = tr32(MAC_STATUS);
3931
3932                 if ((sg_dig_status & SG_DIG_AUTONEG_COMPLETE) &&
3933                     (mac_status & MAC_STATUS_PCS_SYNCED)) {
3934                         u32 local_adv = 0, remote_adv = 0;
3935
3936                         if (sg_dig_ctrl & SG_DIG_PAUSE_CAP)
3937                                 local_adv |= ADVERTISE_1000XPAUSE;
3938                         if (sg_dig_ctrl & SG_DIG_ASYM_PAUSE)
3939                                 local_adv |= ADVERTISE_1000XPSE_ASYM;
3940
3941                         if (sg_dig_status & SG_DIG_PARTNER_PAUSE_CAPABLE)
3942                                 remote_adv |= LPA_1000XPAUSE;
3943                         if (sg_dig_status & SG_DIG_PARTNER_ASYM_PAUSE)
3944                                 remote_adv |= LPA_1000XPAUSE_ASYM;
3945
3946                         tg3_setup_flow_control(tp, local_adv, remote_adv);
3947                         current_link_up = 1;
3948                         tp->serdes_counter = 0;
3949                         tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
3950                 } else if (!(sg_dig_status & SG_DIG_AUTONEG_COMPLETE)) {
3951                         if (tp->serdes_counter)
3952                                 tp->serdes_counter--;
3953                         else {
3954                                 if (workaround) {
3955                                         u32 val = serdes_cfg;
3956
3957                                         if (port_a)
3958                                                 val |= 0xc010000;
3959                                         else
3960                                                 val |= 0x4010000;
3961
3962                                         tw32_f(MAC_SERDES_CFG, val);
3963                                 }
3964
3965                                 tw32_f(SG_DIG_CTRL, SG_DIG_COMMON_SETUP);
3966                                 udelay(40);
3967
3968                                 /* Link parallel detection - link is up */
3969                                 /* only if we have PCS_SYNC and not */
3970                                 /* receiving config code words */
3971                                 mac_status = tr32(MAC_STATUS);
3972                                 if ((mac_status & MAC_STATUS_PCS_SYNCED) &&
3973                                     !(mac_status & MAC_STATUS_RCVD_CFG)) {
3974                                         tg3_setup_flow_control(tp, 0, 0);
3975                                         current_link_up = 1;
3976                                         tp->phy_flags |=
3977                                                 TG3_PHYFLG_PARALLEL_DETECT;
3978                                         tp->serdes_counter =
3979                                                 SERDES_PARALLEL_DET_TIMEOUT;
3980                                 } else
3981                                         goto restart_autoneg;
3982                         }
3983                 }
3984         } else {
3985                 tp->serdes_counter = SERDES_AN_TIMEOUT_5704S;
3986                 tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
3987         }
3988
3989 out:
3990         return current_link_up;
3991 }
3992
3993 static int tg3_setup_fiber_by_hand(struct tg3 *tp, u32 mac_status)
3994 {
3995         int current_link_up = 0;
3996
3997         if (!(mac_status & MAC_STATUS_PCS_SYNCED))
3998                 goto out;
3999
4000         if (tp->link_config.autoneg == AUTONEG_ENABLE) {
4001                 u32 txflags, rxflags;
4002                 int i;
4003
4004                 if (fiber_autoneg(tp, &txflags, &rxflags)) {
4005                         u32 local_adv = 0, remote_adv = 0;
4006
4007                         if (txflags & ANEG_CFG_PS1)
4008                                 local_adv |= ADVERTISE_1000XPAUSE;
4009                         if (txflags & ANEG_CFG_PS2)
4010                                 local_adv |= ADVERTISE_1000XPSE_ASYM;
4011
4012                         if (rxflags & MR_LP_ADV_SYM_PAUSE)
4013                                 remote_adv |= LPA_1000XPAUSE;
4014                         if (rxflags & MR_LP_ADV_ASYM_PAUSE)
4015                                 remote_adv |= LPA_1000XPAUSE_ASYM;
4016
4017                         tg3_setup_flow_control(tp, local_adv, remote_adv);
4018
4019                         current_link_up = 1;
4020                 }
4021                 for (i = 0; i < 30; i++) {
4022                         udelay(20);
4023                         tw32_f(MAC_STATUS,
4024                                (MAC_STATUS_SYNC_CHANGED |
4025                                 MAC_STATUS_CFG_CHANGED));
4026                         udelay(40);
4027                         if ((tr32(MAC_STATUS) &
4028                              (MAC_STATUS_SYNC_CHANGED |
4029                               MAC_STATUS_CFG_CHANGED)) == 0)
4030                                 break;
4031                 }
4032
4033                 mac_status = tr32(MAC_STATUS);
4034                 if (current_link_up == 0 &&
4035                     (mac_status & MAC_STATUS_PCS_SYNCED) &&
4036                     !(mac_status & MAC_STATUS_RCVD_CFG))
4037                         current_link_up = 1;
4038         } else {
4039                 tg3_setup_flow_control(tp, 0, 0);
4040
4041                 /* Forcing 1000FD link up. */
4042                 current_link_up = 1;
4043
4044                 tw32_f(MAC_MODE, (tp->mac_mode | MAC_MODE_SEND_CONFIGS));
4045                 udelay(40);
4046
4047                 tw32_f(MAC_MODE, tp->mac_mode);
4048                 udelay(40);
4049         }
4050
4051 out:
4052         return current_link_up;
4053 }
4054
4055 static int tg3_setup_fiber_phy(struct tg3 *tp, int force_reset)
4056 {
4057         u32 orig_pause_cfg;
4058         u16 orig_active_speed;
4059         u8 orig_active_duplex;
4060         u32 mac_status;
4061         int current_link_up;
4062         int i;
4063
4064         orig_pause_cfg = tp->link_config.active_flowctrl;
4065         orig_active_speed = tp->link_config.active_speed;
4066         orig_active_duplex = tp->link_config.active_duplex;
4067
4068         if (!(tp->tg3_flags2 & TG3_FLG2_HW_AUTONEG) &&
4069             netif_carrier_ok(tp->dev) &&
4070             (tp->tg3_flags & TG3_FLAG_INIT_COMPLETE)) {
4071                 mac_status = tr32(MAC_STATUS);
4072                 mac_status &= (MAC_STATUS_PCS_SYNCED |
4073                                MAC_STATUS_SIGNAL_DET |
4074                                MAC_STATUS_CFG_CHANGED |
4075                                MAC_STATUS_RCVD_CFG);
4076                 if (mac_status == (MAC_STATUS_PCS_SYNCED |
4077                                    MAC_STATUS_SIGNAL_DET)) {
4078                         tw32_f(MAC_STATUS, (MAC_STATUS_SYNC_CHANGED |
4079                                             MAC_STATUS_CFG_CHANGED));
4080                         return 0;
4081                 }
4082         }
4083
4084         tw32_f(MAC_TX_AUTO_NEG, 0);
4085
4086         tp->mac_mode &= ~(MAC_MODE_PORT_MODE_MASK | MAC_MODE_HALF_DUPLEX);
4087         tp->mac_mode |= MAC_MODE_PORT_MODE_TBI;
4088         tw32_f(MAC_MODE, tp->mac_mode);
4089         udelay(40);
4090
4091         if (tp->phy_id == TG3_PHY_ID_BCM8002)
4092                 tg3_init_bcm8002(tp);
4093
4094         /* Enable link change event even when serdes polling.  */
4095         tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
4096         udelay(40);
4097
4098         current_link_up = 0;
4099         mac_status = tr32(MAC_STATUS);
4100
4101         if (tp->tg3_flags2 & TG3_FLG2_HW_AUTONEG)
4102                 current_link_up = tg3_setup_fiber_hw_autoneg(tp, mac_status);
4103         else
4104                 current_link_up = tg3_setup_fiber_by_hand(tp, mac_status);
4105
4106         tp->napi[0].hw_status->status =
4107                 (SD_STATUS_UPDATED |
4108                  (tp->napi[0].hw_status->status & ~SD_STATUS_LINK_CHG));
4109
4110         for (i = 0; i < 100; i++) {
4111                 tw32_f(MAC_STATUS, (MAC_STATUS_SYNC_CHANGED |
4112                                     MAC_STATUS_CFG_CHANGED));
4113                 udelay(5);
4114                 if ((tr32(MAC_STATUS) & (MAC_STATUS_SYNC_CHANGED |
4115                                          MAC_STATUS_CFG_CHANGED |
4116                                          MAC_STATUS_LNKSTATE_CHANGED)) == 0)
4117                         break;
4118         }
4119
4120         mac_status = tr32(MAC_STATUS);
4121         if ((mac_status & MAC_STATUS_PCS_SYNCED) == 0) {
4122                 current_link_up = 0;
4123                 if (tp->link_config.autoneg == AUTONEG_ENABLE &&
4124                     tp->serdes_counter == 0) {
4125                         tw32_f(MAC_MODE, (tp->mac_mode |
4126                                           MAC_MODE_SEND_CONFIGS));
4127                         udelay(1);
4128                         tw32_f(MAC_MODE, tp->mac_mode);
4129                 }
4130         }
4131
4132         if (current_link_up == 1) {
4133                 tp->link_config.active_speed = SPEED_1000;
4134                 tp->link_config.active_duplex = DUPLEX_FULL;
4135                 tw32(MAC_LED_CTRL, (tp->led_ctrl |
4136                                     LED_CTRL_LNKLED_OVERRIDE |
4137                                     LED_CTRL_1000MBPS_ON));
4138         } else {
4139                 tp->link_config.active_speed = SPEED_INVALID;
4140                 tp->link_config.active_duplex = DUPLEX_INVALID;
4141                 tw32(MAC_LED_CTRL, (tp->led_ctrl |
4142                                     LED_CTRL_LNKLED_OVERRIDE |
4143                                     LED_CTRL_TRAFFIC_OVERRIDE));
4144         }
4145
4146         if (current_link_up != netif_carrier_ok(tp->dev)) {
4147                 if (current_link_up)
4148                         netif_carrier_on(tp->dev);
4149                 else
4150                         netif_carrier_off(tp->dev);
4151                 tg3_link_report(tp);
4152         } else {
4153                 u32 now_pause_cfg = tp->link_config.active_flowctrl;
4154                 if (orig_pause_cfg != now_pause_cfg ||
4155                     orig_active_speed != tp->link_config.active_speed ||
4156                     orig_active_duplex != tp->link_config.active_duplex)
4157                         tg3_link_report(tp);
4158         }
4159
4160         return 0;
4161 }
4162
4163 static int tg3_setup_fiber_mii_phy(struct tg3 *tp, int force_reset)
4164 {
4165         int current_link_up, err = 0;
4166         u32 bmsr, bmcr;
4167         u16 current_speed;
4168         u8 current_duplex;
4169         u32 local_adv, remote_adv;
4170
4171         tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
4172         tw32_f(MAC_MODE, tp->mac_mode);
4173         udelay(40);
4174
4175         tw32(MAC_EVENT, 0);
4176
4177         tw32_f(MAC_STATUS,
4178              (MAC_STATUS_SYNC_CHANGED |
4179               MAC_STATUS_CFG_CHANGED |
4180               MAC_STATUS_MI_COMPLETION |
4181               MAC_STATUS_LNKSTATE_CHANGED));
4182         udelay(40);
4183
4184         if (force_reset)
4185                 tg3_phy_reset(tp);
4186
4187         current_link_up = 0;
4188         current_speed = SPEED_INVALID;
4189         current_duplex = DUPLEX_INVALID;
4190
4191         err |= tg3_readphy(tp, MII_BMSR, &bmsr);
4192         err |= tg3_readphy(tp, MII_BMSR, &bmsr);
4193         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714) {
4194                 if (tr32(MAC_TX_STATUS) & TX_STATUS_LINK_UP)
4195                         bmsr |= BMSR_LSTATUS;
4196                 else
4197                         bmsr &= ~BMSR_LSTATUS;
4198         }
4199
4200         err |= tg3_readphy(tp, MII_BMCR, &bmcr);
4201
4202         if ((tp->link_config.autoneg == AUTONEG_ENABLE) && !force_reset &&
4203             (tp->phy_flags & TG3_PHYFLG_PARALLEL_DETECT)) {
4204                 /* do nothing, just check for link up at the end */
4205         } else if (tp->link_config.autoneg == AUTONEG_ENABLE) {
4206                 u32 adv, new_adv;
4207
4208                 err |= tg3_readphy(tp, MII_ADVERTISE, &adv);
4209                 new_adv = adv & ~(ADVERTISE_1000XFULL | ADVERTISE_1000XHALF |
4210                                   ADVERTISE_1000XPAUSE |
4211                                   ADVERTISE_1000XPSE_ASYM |
4212                                   ADVERTISE_SLCT);
4213
4214                 new_adv |= tg3_advert_flowctrl_1000X(tp->link_config.flowctrl);
4215
4216                 if (tp->link_config.advertising & ADVERTISED_1000baseT_Half)
4217                         new_adv |= ADVERTISE_1000XHALF;
4218                 if (tp->link_config.advertising & ADVERTISED_1000baseT_Full)
4219                         new_adv |= ADVERTISE_1000XFULL;
4220
4221                 if ((new_adv != adv) || !(bmcr & BMCR_ANENABLE)) {
4222                         tg3_writephy(tp, MII_ADVERTISE, new_adv);
4223                         bmcr |= BMCR_ANENABLE | BMCR_ANRESTART;
4224                         tg3_writephy(tp, MII_BMCR, bmcr);
4225
4226                         tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
4227                         tp->serdes_counter = SERDES_AN_TIMEOUT_5714S;
4228                         tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
4229
4230                         return err;
4231                 }
4232         } else {
4233                 u32 new_bmcr;
4234
4235                 bmcr &= ~BMCR_SPEED1000;
4236                 new_bmcr = bmcr & ~(BMCR_ANENABLE | BMCR_FULLDPLX);
4237
4238                 if (tp->link_config.duplex == DUPLEX_FULL)
4239                         new_bmcr |= BMCR_FULLDPLX;
4240
4241                 if (new_bmcr != bmcr) {
4242                         /* BMCR_SPEED1000 is a reserved bit that needs
4243                          * to be set on write.
4244                          */
4245                         new_bmcr |= BMCR_SPEED1000;
4246
4247                         /* Force a linkdown */
4248                         if (netif_carrier_ok(tp->dev)) {
4249                                 u32 adv;
4250
4251                                 err |= tg3_readphy(tp, MII_ADVERTISE, &adv);
4252                                 adv &= ~(ADVERTISE_1000XFULL |
4253                                          ADVERTISE_1000XHALF |
4254                                          ADVERTISE_SLCT);
4255                                 tg3_writephy(tp, MII_ADVERTISE, adv);
4256                                 tg3_writephy(tp, MII_BMCR, bmcr |
4257                                                            BMCR_ANRESTART |
4258                                                            BMCR_ANENABLE);
4259                                 udelay(10);
4260                                 netif_carrier_off(tp->dev);
4261                         }
4262                         tg3_writephy(tp, MII_BMCR, new_bmcr);
4263                         bmcr = new_bmcr;
4264                         err |= tg3_readphy(tp, MII_BMSR, &bmsr);
4265                         err |= tg3_readphy(tp, MII_BMSR, &bmsr);
4266                         if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
4267                             ASIC_REV_5714) {
4268                                 if (tr32(MAC_TX_STATUS) & TX_STATUS_LINK_UP)
4269                                         bmsr |= BMSR_LSTATUS;
4270                                 else
4271                                         bmsr &= ~BMSR_LSTATUS;
4272                         }
4273                         tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
4274                 }
4275         }
4276
4277         if (bmsr & BMSR_LSTATUS) {
4278                 current_speed = SPEED_1000;
4279                 current_link_up = 1;
4280                 if (bmcr & BMCR_FULLDPLX)
4281                         current_duplex = DUPLEX_FULL;
4282                 else
4283                         current_duplex = DUPLEX_HALF;
4284
4285                 local_adv = 0;
4286                 remote_adv = 0;
4287
4288                 if (bmcr & BMCR_ANENABLE) {
4289                         u32 common;
4290
4291                         err |= tg3_readphy(tp, MII_ADVERTISE, &local_adv);
4292                         err |= tg3_readphy(tp, MII_LPA, &remote_adv);
4293                         common = local_adv & remote_adv;
4294                         if (common & (ADVERTISE_1000XHALF |
4295                                       ADVERTISE_1000XFULL)) {
4296                                 if (common & ADVERTISE_1000XFULL)
4297                                         current_duplex = DUPLEX_FULL;
4298                                 else
4299                                         current_duplex = DUPLEX_HALF;
4300                         } else if (!(tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
4301                                 /* Link is up via parallel detect */
4302                         } else {
4303                                 current_link_up = 0;
4304                         }
4305                 }
4306         }
4307
4308         if (current_link_up == 1 && current_duplex == DUPLEX_FULL)
4309                 tg3_setup_flow_control(tp, local_adv, remote_adv);
4310
4311         tp->mac_mode &= ~MAC_MODE_HALF_DUPLEX;
4312         if (tp->link_config.active_duplex == DUPLEX_HALF)
4313                 tp->mac_mode |= MAC_MODE_HALF_DUPLEX;
4314
4315         tw32_f(MAC_MODE, tp->mac_mode);
4316         udelay(40);
4317
4318         tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
4319
4320         tp->link_config.active_speed = current_speed;
4321         tp->link_config.active_duplex = current_duplex;
4322
4323         if (current_link_up != netif_carrier_ok(tp->dev)) {
4324                 if (current_link_up)
4325                         netif_carrier_on(tp->dev);
4326                 else {
4327                         netif_carrier_off(tp->dev);
4328                         tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
4329                 }
4330                 tg3_link_report(tp);
4331         }
4332         return err;
4333 }
4334
4335 static void tg3_serdes_parallel_detect(struct tg3 *tp)
4336 {
4337         if (tp->serdes_counter) {
4338                 /* Give autoneg time to complete. */
4339                 tp->serdes_counter--;
4340                 return;
4341         }
4342
4343         if (!netif_carrier_ok(tp->dev) &&
4344             (tp->link_config.autoneg == AUTONEG_ENABLE)) {
4345                 u32 bmcr;
4346
4347                 tg3_readphy(tp, MII_BMCR, &bmcr);
4348                 if (bmcr & BMCR_ANENABLE) {
4349                         u32 phy1, phy2;
4350
4351                         /* Select shadow register 0x1f */
4352                         tg3_writephy(tp, MII_TG3_MISC_SHDW, 0x7c00);
4353                         tg3_readphy(tp, MII_TG3_MISC_SHDW, &phy1);
4354
4355                         /* Select expansion interrupt status register */
4356                         tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
4357                                          MII_TG3_DSP_EXP1_INT_STAT);
4358                         tg3_readphy(tp, MII_TG3_DSP_RW_PORT, &phy2);
4359                         tg3_readphy(tp, MII_TG3_DSP_RW_PORT, &phy2);
4360
4361                         if ((phy1 & 0x10) && !(phy2 & 0x20)) {
4362                                 /* We have signal detect and not receiving
4363                                  * config code words, link is up by parallel
4364                                  * detection.
4365                                  */
4366
4367                                 bmcr &= ~BMCR_ANENABLE;
4368                                 bmcr |= BMCR_SPEED1000 | BMCR_FULLDPLX;
4369                                 tg3_writephy(tp, MII_BMCR, bmcr);
4370                                 tp->phy_flags |= TG3_PHYFLG_PARALLEL_DETECT;
4371                         }
4372                 }
4373         } else if (netif_carrier_ok(tp->dev) &&
4374                    (tp->link_config.autoneg == AUTONEG_ENABLE) &&
4375                    (tp->phy_flags & TG3_PHYFLG_PARALLEL_DETECT)) {
4376                 u32 phy2;
4377
4378                 /* Select expansion interrupt status register */
4379                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
4380                                  MII_TG3_DSP_EXP1_INT_STAT);
4381                 tg3_readphy(tp, MII_TG3_DSP_RW_PORT, &phy2);
4382                 if (phy2 & 0x20) {
4383                         u32 bmcr;
4384
4385                         /* Config code words received, turn on autoneg. */
4386                         tg3_readphy(tp, MII_BMCR, &bmcr);
4387                         tg3_writephy(tp, MII_BMCR, bmcr | BMCR_ANENABLE);
4388
4389                         tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
4390
4391                 }
4392         }
4393 }
4394
4395 static int tg3_setup_phy(struct tg3 *tp, int force_reset)
4396 {
4397         int err;
4398
4399         if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES)
4400                 err = tg3_setup_fiber_phy(tp, force_reset);
4401         else if (tp->phy_flags & TG3_PHYFLG_MII_SERDES)
4402                 err = tg3_setup_fiber_mii_phy(tp, force_reset);
4403         else
4404                 err = tg3_setup_copper_phy(tp, force_reset);
4405
4406         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX) {
4407                 u32 val, scale;
4408
4409                 val = tr32(TG3_CPMU_CLCK_STAT) & CPMU_CLCK_STAT_MAC_CLCK_MASK;
4410                 if (val == CPMU_CLCK_STAT_MAC_CLCK_62_5)
4411                         scale = 65;
4412                 else if (val == CPMU_CLCK_STAT_MAC_CLCK_6_25)
4413                         scale = 6;
4414                 else
4415                         scale = 12;
4416
4417                 val = tr32(GRC_MISC_CFG) & ~GRC_MISC_CFG_PRESCALAR_MASK;
4418                 val |= (scale << GRC_MISC_CFG_PRESCALAR_SHIFT);
4419                 tw32(GRC_MISC_CFG, val);
4420         }
4421
4422         if (tp->link_config.active_speed == SPEED_1000 &&
4423             tp->link_config.active_duplex == DUPLEX_HALF)
4424                 tw32(MAC_TX_LENGTHS,
4425                      ((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
4426                       (6 << TX_LENGTHS_IPG_SHIFT) |
4427                       (0xff << TX_LENGTHS_SLOT_TIME_SHIFT)));
4428         else
4429                 tw32(MAC_TX_LENGTHS,
4430                      ((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
4431                       (6 << TX_LENGTHS_IPG_SHIFT) |
4432                       (32 << TX_LENGTHS_SLOT_TIME_SHIFT)));
4433
4434         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
4435                 if (netif_carrier_ok(tp->dev)) {
4436                         tw32(HOSTCC_STAT_COAL_TICKS,
4437                              tp->coal.stats_block_coalesce_usecs);
4438                 } else {
4439                         tw32(HOSTCC_STAT_COAL_TICKS, 0);
4440                 }
4441         }
4442
4443         if (tp->tg3_flags & TG3_FLAG_ASPM_WORKAROUND) {
4444                 u32 val = tr32(PCIE_PWR_MGMT_THRESH);
4445                 if (!netif_carrier_ok(tp->dev))
4446                         val = (val & ~PCIE_PWR_MGMT_L1_THRESH_MSK) |
4447                               tp->pwrmgmt_thresh;
4448                 else
4449                         val |= PCIE_PWR_MGMT_L1_THRESH_MSK;
4450                 tw32(PCIE_PWR_MGMT_THRESH, val);
4451         }
4452
4453         return err;
4454 }
4455
4456 static inline int tg3_irq_sync(struct tg3 *tp)
4457 {
4458         return tp->irq_sync;
4459 }
4460
4461 /* This is called whenever we suspect that the system chipset is re-
4462  * ordering the sequence of MMIO to the tx send mailbox. The symptom
4463  * is bogus tx completions. We try to recover by setting the
4464  * TG3_FLAG_MBOX_WRITE_REORDER flag and resetting the chip later
4465  * in the workqueue.
4466  */
4467 static void tg3_tx_recover(struct tg3 *tp)
4468 {
4469         BUG_ON((tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER) ||
4470                tp->write32_tx_mbox == tg3_write_indirect_mbox);
4471
4472         netdev_warn(tp->dev,
4473                     "The system may be re-ordering memory-mapped I/O "
4474                     "cycles to the network device, attempting to recover. "
4475                     "Please report the problem to the driver maintainer "
4476                     "and include system chipset information.\n");
4477
4478         spin_lock(&tp->lock);
4479         tp->tg3_flags |= TG3_FLAG_TX_RECOVERY_PENDING;
4480         spin_unlock(&tp->lock);
4481 }
4482
4483 static inline u32 tg3_tx_avail(struct tg3_napi *tnapi)
4484 {
4485         /* Tell compiler to fetch tx indices from memory. */
4486         barrier();
4487         return tnapi->tx_pending -
4488                ((tnapi->tx_prod - tnapi->tx_cons) & (TG3_TX_RING_SIZE - 1));
4489 }
4490
4491 /* Tigon3 never reports partial packet sends.  So we do not
4492  * need special logic to handle SKBs that have not had all
4493  * of their frags sent yet, like SunGEM does.
4494  */
4495 static void tg3_tx(struct tg3_napi *tnapi)
4496 {
4497         struct tg3 *tp = tnapi->tp;
4498         u32 hw_idx = tnapi->hw_status->idx[0].tx_consumer;
4499         u32 sw_idx = tnapi->tx_cons;
4500         struct netdev_queue *txq;
4501         int index = tnapi - tp->napi;
4502
4503         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
4504                 index--;
4505
4506         txq = netdev_get_tx_queue(tp->dev, index);
4507
4508         while (sw_idx != hw_idx) {
4509                 struct ring_info *ri = &tnapi->tx_buffers[sw_idx];
4510                 struct sk_buff *skb = ri->skb;
4511                 int i, tx_bug = 0;
4512
4513                 if (unlikely(skb == NULL)) {
4514                         tg3_tx_recover(tp);
4515                         return;
4516                 }
4517
4518                 pci_unmap_single(tp->pdev,
4519                                  dma_unmap_addr(ri, mapping),
4520                                  skb_headlen(skb),
4521                                  PCI_DMA_TODEVICE);
4522
4523                 ri->skb = NULL;
4524
4525                 sw_idx = NEXT_TX(sw_idx);
4526
4527                 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
4528                         ri = &tnapi->tx_buffers[sw_idx];
4529                         if (unlikely(ri->skb != NULL || sw_idx == hw_idx))
4530                                 tx_bug = 1;
4531
4532                         pci_unmap_page(tp->pdev,
4533                                        dma_unmap_addr(ri, mapping),
4534                                        skb_shinfo(skb)->frags[i].size,
4535                                        PCI_DMA_TODEVICE);
4536                         sw_idx = NEXT_TX(sw_idx);
4537                 }
4538
4539                 dev_kfree_skb(skb);
4540
4541                 if (unlikely(tx_bug)) {
4542                         tg3_tx_recover(tp);
4543                         return;
4544                 }
4545         }
4546
4547         tnapi->tx_cons = sw_idx;
4548
4549         /* Need to make the tx_cons update visible to tg3_start_xmit()
4550          * before checking for netif_queue_stopped().  Without the
4551          * memory barrier, there is a small possibility that tg3_start_xmit()
4552          * will miss it and cause the queue to be stopped forever.
4553          */
4554         smp_mb();
4555
4556         if (unlikely(netif_tx_queue_stopped(txq) &&
4557                      (tg3_tx_avail(tnapi) > TG3_TX_WAKEUP_THRESH(tnapi)))) {
4558                 __netif_tx_lock(txq, smp_processor_id());
4559                 if (netif_tx_queue_stopped(txq) &&
4560                     (tg3_tx_avail(tnapi) > TG3_TX_WAKEUP_THRESH(tnapi)))
4561                         netif_tx_wake_queue(txq);
4562                 __netif_tx_unlock(txq);
4563         }
4564 }
4565
4566 static void tg3_rx_skb_free(struct tg3 *tp, struct ring_info *ri, u32 map_sz)
4567 {
4568         if (!ri->skb)
4569                 return;
4570
4571         pci_unmap_single(tp->pdev, dma_unmap_addr(ri, mapping),
4572                          map_sz, PCI_DMA_FROMDEVICE);
4573         dev_kfree_skb_any(ri->skb);
4574         ri->skb = NULL;
4575 }
4576
4577 /* Returns size of skb allocated or < 0 on error.
4578  *
4579  * We only need to fill in the address because the other members
4580  * of the RX descriptor are invariant, see tg3_init_rings.
4581  *
4582  * Note the purposeful assymetry of cpu vs. chip accesses.  For
4583  * posting buffers we only dirty the first cache line of the RX
4584  * descriptor (containing the address).  Whereas for the RX status
4585  * buffers the cpu only reads the last cacheline of the RX descriptor
4586  * (to fetch the error flags, vlan tag, checksum, and opaque cookie).
4587  */
4588 static int tg3_alloc_rx_skb(struct tg3 *tp, struct tg3_rx_prodring_set *tpr,
4589                             u32 opaque_key, u32 dest_idx_unmasked)
4590 {
4591         struct tg3_rx_buffer_desc *desc;
4592         struct ring_info *map;
4593         struct sk_buff *skb;
4594         dma_addr_t mapping;
4595         int skb_size, dest_idx;
4596
4597         switch (opaque_key) {
4598         case RXD_OPAQUE_RING_STD:
4599                 dest_idx = dest_idx_unmasked & tp->rx_std_ring_mask;
4600                 desc = &tpr->rx_std[dest_idx];
4601                 map = &tpr->rx_std_buffers[dest_idx];
4602                 skb_size = tp->rx_pkt_map_sz;
4603                 break;
4604
4605         case RXD_OPAQUE_RING_JUMBO:
4606                 dest_idx = dest_idx_unmasked & tp->rx_jmb_ring_mask;
4607                 desc = &tpr->rx_jmb[dest_idx].std;
4608                 map = &tpr->rx_jmb_buffers[dest_idx];
4609                 skb_size = TG3_RX_JMB_MAP_SZ;
4610                 break;
4611
4612         default:
4613                 return -EINVAL;
4614         }
4615
4616         /* Do not overwrite any of the map or rp information
4617          * until we are sure we can commit to a new buffer.
4618          *
4619          * Callers depend upon this behavior and assume that
4620          * we leave everything unchanged if we fail.
4621          */
4622         skb = netdev_alloc_skb(tp->dev, skb_size + tp->rx_offset);
4623         if (skb == NULL)
4624                 return -ENOMEM;
4625
4626         skb_reserve(skb, tp->rx_offset);
4627
4628         mapping = pci_map_single(tp->pdev, skb->data, skb_size,
4629                                  PCI_DMA_FROMDEVICE);
4630         if (pci_dma_mapping_error(tp->pdev, mapping)) {
4631                 dev_kfree_skb(skb);
4632                 return -EIO;
4633         }
4634
4635         map->skb = skb;
4636         dma_unmap_addr_set(map, mapping, mapping);
4637
4638         desc->addr_hi = ((u64)mapping >> 32);
4639         desc->addr_lo = ((u64)mapping & 0xffffffff);
4640
4641         return skb_size;
4642 }
4643
4644 /* We only need to move over in the address because the other
4645  * members of the RX descriptor are invariant.  See notes above
4646  * tg3_alloc_rx_skb for full details.
4647  */
4648 static void tg3_recycle_rx(struct tg3_napi *tnapi,
4649                            struct tg3_rx_prodring_set *dpr,
4650                            u32 opaque_key, int src_idx,
4651                            u32 dest_idx_unmasked)
4652 {
4653         struct tg3 *tp = tnapi->tp;
4654         struct tg3_rx_buffer_desc *src_desc, *dest_desc;
4655         struct ring_info *src_map, *dest_map;
4656         struct tg3_rx_prodring_set *spr = &tp->napi[0].prodring;
4657         int dest_idx;
4658
4659         switch (opaque_key) {
4660         case RXD_OPAQUE_RING_STD:
4661                 dest_idx = dest_idx_unmasked & tp->rx_std_ring_mask;
4662                 dest_desc = &dpr->rx_std[dest_idx];
4663                 dest_map = &dpr->rx_std_buffers[dest_idx];
4664                 src_desc = &spr->rx_std[src_idx];
4665                 src_map = &spr->rx_std_buffers[src_idx];
4666                 break;
4667
4668         case RXD_OPAQUE_RING_JUMBO:
4669                 dest_idx = dest_idx_unmasked & tp->rx_jmb_ring_mask;
4670                 dest_desc = &dpr->rx_jmb[dest_idx].std;
4671                 dest_map = &dpr->rx_jmb_buffers[dest_idx];
4672                 src_desc = &spr->rx_jmb[src_idx].std;
4673                 src_map = &spr->rx_jmb_buffers[src_idx];
4674                 break;
4675
4676         default:
4677                 return;
4678         }
4679
4680         dest_map->skb = src_map->skb;
4681         dma_unmap_addr_set(dest_map, mapping,
4682                            dma_unmap_addr(src_map, mapping));
4683         dest_desc->addr_hi = src_desc->addr_hi;
4684         dest_desc->addr_lo = src_desc->addr_lo;
4685
4686         /* Ensure that the update to the skb happens after the physical
4687          * addresses have been transferred to the new BD location.
4688          */
4689         smp_wmb();
4690
4691         src_map->skb = NULL;
4692 }
4693
4694 /* The RX ring scheme is composed of multiple rings which post fresh
4695  * buffers to the chip, and one special ring the chip uses to report
4696  * status back to the host.
4697  *
4698  * The special ring reports the status of received packets to the
4699  * host.  The chip does not write into the original descriptor the
4700  * RX buffer was obtained from.  The chip simply takes the original
4701  * descriptor as provided by the host, updates the status and length
4702  * field, then writes this into the next status ring entry.
4703  *
4704  * Each ring the host uses to post buffers to the chip is described
4705  * by a TG3_BDINFO entry in the chips SRAM area.  When a packet arrives,
4706  * it is first placed into the on-chip ram.  When the packet's length
4707  * is known, it walks down the TG3_BDINFO entries to select the ring.
4708  * Each TG3_BDINFO specifies a MAXLEN field and the first TG3_BDINFO
4709  * which is within the range of the new packet's length is chosen.
4710  *
4711  * The "separate ring for rx status" scheme may sound queer, but it makes
4712  * sense from a cache coherency perspective.  If only the host writes
4713  * to the buffer post rings, and only the chip writes to the rx status
4714  * rings, then cache lines never move beyond shared-modified state.
4715  * If both the host and chip were to write into the same ring, cache line
4716  * eviction could occur since both entities want it in an exclusive state.
4717  */
4718 static int tg3_rx(struct tg3_napi *tnapi, int budget)
4719 {
4720         struct tg3 *tp = tnapi->tp;
4721         u32 work_mask, rx_std_posted = 0;
4722         u32 std_prod_idx, jmb_prod_idx;
4723         u32 sw_idx = tnapi->rx_rcb_ptr;
4724         u16 hw_idx;
4725         int received;
4726         struct tg3_rx_prodring_set *tpr = &tnapi->prodring;
4727
4728         hw_idx = *(tnapi->rx_rcb_prod_idx);
4729         /*
4730          * We need to order the read of hw_idx and the read of
4731          * the opaque cookie.
4732          */
4733         rmb();
4734         work_mask = 0;
4735         received = 0;
4736         std_prod_idx = tpr->rx_std_prod_idx;
4737         jmb_prod_idx = tpr->rx_jmb_prod_idx;
4738         while (sw_idx != hw_idx && budget > 0) {
4739                 struct ring_info *ri;
4740                 struct tg3_rx_buffer_desc *desc = &tnapi->rx_rcb[sw_idx];
4741                 unsigned int len;
4742                 struct sk_buff *skb;
4743                 dma_addr_t dma_addr;
4744                 u32 opaque_key, desc_idx, *post_ptr;
4745
4746                 desc_idx = desc->opaque & RXD_OPAQUE_INDEX_MASK;
4747                 opaque_key = desc->opaque & RXD_OPAQUE_RING_MASK;
4748                 if (opaque_key == RXD_OPAQUE_RING_STD) {
4749                         ri = &tp->napi[0].prodring.rx_std_buffers[desc_idx];
4750                         dma_addr = dma_unmap_addr(ri, mapping);
4751                         skb = ri->skb;
4752                         post_ptr = &std_prod_idx;
4753                         rx_std_posted++;
4754                 } else if (opaque_key == RXD_OPAQUE_RING_JUMBO) {
4755                         ri = &tp->napi[0].prodring.rx_jmb_buffers[desc_idx];
4756                         dma_addr = dma_unmap_addr(ri, mapping);
4757                         skb = ri->skb;
4758                         post_ptr = &jmb_prod_idx;
4759                 } else
4760                         goto next_pkt_nopost;
4761
4762                 work_mask |= opaque_key;
4763
4764                 if ((desc->err_vlan & RXD_ERR_MASK) != 0 &&
4765                     (desc->err_vlan != RXD_ERR_ODD_NIBBLE_RCVD_MII)) {
4766                 drop_it:
4767                         tg3_recycle_rx(tnapi, tpr, opaque_key,
4768                                        desc_idx, *post_ptr);
4769                 drop_it_no_recycle:
4770                         /* Other statistics kept track of by card. */
4771                         tp->rx_dropped++;
4772                         goto next_pkt;
4773                 }
4774
4775                 len = ((desc->idx_len & RXD_LEN_MASK) >> RXD_LEN_SHIFT) -
4776                       ETH_FCS_LEN;
4777
4778                 if (len > TG3_RX_COPY_THRESH(tp)) {
4779                         int skb_size;
4780
4781                         skb_size = tg3_alloc_rx_skb(tp, tpr, opaque_key,
4782                                                     *post_ptr);
4783                         if (skb_size < 0)
4784                                 goto drop_it;
4785
4786                         pci_unmap_single(tp->pdev, dma_addr, skb_size,
4787                                          PCI_DMA_FROMDEVICE);
4788
4789                         /* Ensure that the update to the skb happens
4790                          * after the usage of the old DMA mapping.
4791                          */
4792                         smp_wmb();
4793
4794                         ri->skb = NULL;
4795
4796                         skb_put(skb, len);
4797                 } else {
4798                         struct sk_buff *copy_skb;
4799
4800                         tg3_recycle_rx(tnapi, tpr, opaque_key,
4801                                        desc_idx, *post_ptr);
4802
4803                         copy_skb = netdev_alloc_skb(tp->dev, len +
4804                                                     TG3_RAW_IP_ALIGN);
4805                         if (copy_skb == NULL)
4806                                 goto drop_it_no_recycle;
4807
4808                         skb_reserve(copy_skb, TG3_RAW_IP_ALIGN);
4809                         skb_put(copy_skb, len);
4810                         pci_dma_sync_single_for_cpu(tp->pdev, dma_addr, len, PCI_DMA_FROMDEVICE);
4811                         skb_copy_from_linear_data(skb, copy_skb->data, len);
4812                         pci_dma_sync_single_for_device(tp->pdev, dma_addr, len, PCI_DMA_FROMDEVICE);
4813
4814                         /* We'll reuse the original ring buffer. */
4815                         skb = copy_skb;
4816                 }
4817
4818                 if ((tp->tg3_flags & TG3_FLAG_RX_CHECKSUMS) &&
4819                     (desc->type_flags & RXD_FLAG_TCPUDP_CSUM) &&
4820                     (((desc->ip_tcp_csum & RXD_TCPCSUM_MASK)
4821                       >> RXD_TCPCSUM_SHIFT) == 0xffff))
4822                         skb->ip_summed = CHECKSUM_UNNECESSARY;
4823                 else
4824                         skb_checksum_none_assert(skb);
4825
4826                 skb->protocol = eth_type_trans(skb, tp->dev);
4827
4828                 if (len > (tp->dev->mtu + ETH_HLEN) &&
4829                     skb->protocol != htons(ETH_P_8021Q)) {
4830                         dev_kfree_skb(skb);
4831                         goto drop_it_no_recycle;
4832                 }
4833
4834                 if (desc->type_flags & RXD_FLAG_VLAN &&
4835                     !(tp->rx_mode & RX_MODE_KEEP_VLAN_TAG))
4836                         __vlan_hwaccel_put_tag(skb,
4837                                                desc->err_vlan & RXD_VLAN_MASK);
4838
4839                 napi_gro_receive(&tnapi->napi, skb);
4840
4841                 received++;
4842                 budget--;
4843
4844 next_pkt:
4845                 (*post_ptr)++;
4846
4847                 if (unlikely(rx_std_posted >= tp->rx_std_max_post)) {
4848                         tpr->rx_std_prod_idx = std_prod_idx &
4849                                                tp->rx_std_ring_mask;
4850                         tw32_rx_mbox(TG3_RX_STD_PROD_IDX_REG,
4851                                      tpr->rx_std_prod_idx);
4852                         work_mask &= ~RXD_OPAQUE_RING_STD;
4853                         rx_std_posted = 0;
4854                 }
4855 next_pkt_nopost:
4856                 sw_idx++;
4857                 sw_idx &= tp->rx_ret_ring_mask;
4858
4859                 /* Refresh hw_idx to see if there is new work */
4860                 if (sw_idx == hw_idx) {
4861                         hw_idx = *(tnapi->rx_rcb_prod_idx);
4862                         rmb();
4863                 }
4864         }
4865
4866         /* ACK the status ring. */
4867         tnapi->rx_rcb_ptr = sw_idx;
4868         tw32_rx_mbox(tnapi->consmbox, sw_idx);
4869
4870         /* Refill RX ring(s). */
4871         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS)) {
4872                 if (work_mask & RXD_OPAQUE_RING_STD) {
4873                         tpr->rx_std_prod_idx = std_prod_idx &
4874                                                tp->rx_std_ring_mask;
4875                         tw32_rx_mbox(TG3_RX_STD_PROD_IDX_REG,
4876                                      tpr->rx_std_prod_idx);
4877                 }
4878                 if (work_mask & RXD_OPAQUE_RING_JUMBO) {
4879                         tpr->rx_jmb_prod_idx = jmb_prod_idx &
4880                                                tp->rx_jmb_ring_mask;
4881                         tw32_rx_mbox(TG3_RX_JMB_PROD_IDX_REG,
4882                                      tpr->rx_jmb_prod_idx);
4883                 }
4884                 mmiowb();
4885         } else if (work_mask) {
4886                 /* rx_std_buffers[] and rx_jmb_buffers[] entries must be
4887                  * updated before the producer indices can be updated.
4888                  */
4889                 smp_wmb();
4890
4891                 tpr->rx_std_prod_idx = std_prod_idx & tp->rx_std_ring_mask;
4892                 tpr->rx_jmb_prod_idx = jmb_prod_idx & tp->rx_jmb_ring_mask;
4893
4894                 if (tnapi != &tp->napi[1])
4895                         napi_schedule(&tp->napi[1].napi);
4896         }
4897
4898         return received;
4899 }
4900
4901 static void tg3_poll_link(struct tg3 *tp)
4902 {
4903         /* handle link change and other phy events */
4904         if (!(tp->tg3_flags &
4905               (TG3_FLAG_USE_LINKCHG_REG |
4906                TG3_FLAG_POLL_SERDES))) {
4907                 struct tg3_hw_status *sblk = tp->napi[0].hw_status;
4908
4909                 if (sblk->status & SD_STATUS_LINK_CHG) {
4910                         sblk->status = SD_STATUS_UPDATED |
4911                                        (sblk->status & ~SD_STATUS_LINK_CHG);
4912                         spin_lock(&tp->lock);
4913                         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
4914                                 tw32_f(MAC_STATUS,
4915                                      (MAC_STATUS_SYNC_CHANGED |
4916                                       MAC_STATUS_CFG_CHANGED |
4917                                       MAC_STATUS_MI_COMPLETION |
4918                                       MAC_STATUS_LNKSTATE_CHANGED));
4919                                 udelay(40);
4920                         } else
4921                                 tg3_setup_phy(tp, 0);
4922                         spin_unlock(&tp->lock);
4923                 }
4924         }
4925 }
4926
4927 static int tg3_rx_prodring_xfer(struct tg3 *tp,
4928                                 struct tg3_rx_prodring_set *dpr,
4929                                 struct tg3_rx_prodring_set *spr)
4930 {
4931         u32 si, di, cpycnt, src_prod_idx;
4932         int i, err = 0;
4933
4934         while (1) {
4935                 src_prod_idx = spr->rx_std_prod_idx;
4936
4937                 /* Make sure updates to the rx_std_buffers[] entries and the
4938                  * standard producer index are seen in the correct order.
4939                  */
4940                 smp_rmb();
4941
4942                 if (spr->rx_std_cons_idx == src_prod_idx)
4943                         break;
4944
4945                 if (spr->rx_std_cons_idx < src_prod_idx)
4946                         cpycnt = src_prod_idx - spr->rx_std_cons_idx;
4947                 else
4948                         cpycnt = tp->rx_std_ring_mask + 1 -
4949                                  spr->rx_std_cons_idx;
4950
4951                 cpycnt = min(cpycnt,
4952                              tp->rx_std_ring_mask + 1 - dpr->rx_std_prod_idx);
4953
4954                 si = spr->rx_std_cons_idx;
4955                 di = dpr->rx_std_prod_idx;
4956
4957                 for (i = di; i < di + cpycnt; i++) {
4958                         if (dpr->rx_std_buffers[i].skb) {
4959                                 cpycnt = i - di;
4960                                 err = -ENOSPC;
4961                                 break;
4962                         }
4963                 }
4964
4965                 if (!cpycnt)
4966                         break;
4967
4968                 /* Ensure that updates to the rx_std_buffers ring and the
4969                  * shadowed hardware producer ring from tg3_recycle_skb() are
4970                  * ordered correctly WRT the skb check above.
4971                  */
4972                 smp_rmb();
4973
4974                 memcpy(&dpr->rx_std_buffers[di],
4975                        &spr->rx_std_buffers[si],
4976                        cpycnt * sizeof(struct ring_info));
4977
4978                 for (i = 0; i < cpycnt; i++, di++, si++) {
4979                         struct tg3_rx_buffer_desc *sbd, *dbd;
4980                         sbd = &spr->rx_std[si];
4981                         dbd = &dpr->rx_std[di];
4982                         dbd->addr_hi = sbd->addr_hi;
4983                         dbd->addr_lo = sbd->addr_lo;
4984                 }
4985
4986                 spr->rx_std_cons_idx = (spr->rx_std_cons_idx + cpycnt) &
4987                                        tp->rx_std_ring_mask;
4988                 dpr->rx_std_prod_idx = (dpr->rx_std_prod_idx + cpycnt) &
4989                                        tp->rx_std_ring_mask;
4990         }
4991
4992         while (1) {
4993                 src_prod_idx = spr->rx_jmb_prod_idx;
4994
4995                 /* Make sure updates to the rx_jmb_buffers[] entries and
4996                  * the jumbo producer index are seen in the correct order.
4997                  */
4998                 smp_rmb();
4999
5000                 if (spr->rx_jmb_cons_idx == src_prod_idx)
5001                         break;
5002
5003                 if (spr->rx_jmb_cons_idx < src_prod_idx)
5004                         cpycnt = src_prod_idx - spr->rx_jmb_cons_idx;
5005                 else
5006                         cpycnt = tp->rx_jmb_ring_mask + 1 -
5007                                  spr->rx_jmb_cons_idx;
5008
5009                 cpycnt = min(cpycnt,
5010                              tp->rx_jmb_ring_mask + 1 - dpr->rx_jmb_prod_idx);
5011
5012                 si = spr->rx_jmb_cons_idx;
5013                 di = dpr->rx_jmb_prod_idx;
5014
5015                 for (i = di; i < di + cpycnt; i++) {
5016                         if (dpr->rx_jmb_buffers[i].skb) {
5017                                 cpycnt = i - di;
5018                                 err = -ENOSPC;
5019                                 break;
5020                         }
5021                 }
5022
5023                 if (!cpycnt)
5024                         break;
5025
5026                 /* Ensure that updates to the rx_jmb_buffers ring and the
5027                  * shadowed hardware producer ring from tg3_recycle_skb() are
5028                  * ordered correctly WRT the skb check above.
5029                  */
5030                 smp_rmb();
5031
5032                 memcpy(&dpr->rx_jmb_buffers[di],
5033                        &spr->rx_jmb_buffers[si],
5034                        cpycnt * sizeof(struct ring_info));
5035
5036                 for (i = 0; i < cpycnt; i++, di++, si++) {
5037                         struct tg3_rx_buffer_desc *sbd, *dbd;
5038                         sbd = &spr->rx_jmb[si].std;
5039                         dbd = &dpr->rx_jmb[di].std;
5040                         dbd->addr_hi = sbd->addr_hi;
5041                         dbd->addr_lo = sbd->addr_lo;
5042                 }
5043
5044                 spr->rx_jmb_cons_idx = (spr->rx_jmb_cons_idx + cpycnt) &
5045                                        tp->rx_jmb_ring_mask;
5046                 dpr->rx_jmb_prod_idx = (dpr->rx_jmb_prod_idx + cpycnt) &
5047                                        tp->rx_jmb_ring_mask;
5048         }
5049
5050         return err;
5051 }
5052
5053 static int tg3_poll_work(struct tg3_napi *tnapi, int work_done, int budget)
5054 {
5055         struct tg3 *tp = tnapi->tp;
5056
5057         /* run TX completion thread */
5058         if (tnapi->hw_status->idx[0].tx_consumer != tnapi->tx_cons) {
5059                 tg3_tx(tnapi);
5060                 if (unlikely(tp->tg3_flags & TG3_FLAG_TX_RECOVERY_PENDING))
5061                         return work_done;
5062         }
5063
5064         /* run RX thread, within the bounds set by NAPI.
5065          * All RX "locking" is done by ensuring outside
5066          * code synchronizes with tg3->napi.poll()
5067          */
5068         if (*(tnapi->rx_rcb_prod_idx) != tnapi->rx_rcb_ptr)
5069                 work_done += tg3_rx(tnapi, budget - work_done);
5070
5071         if ((tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS) && tnapi == &tp->napi[1]) {
5072                 struct tg3_rx_prodring_set *dpr = &tp->napi[0].prodring;
5073                 int i, err = 0;
5074                 u32 std_prod_idx = dpr->rx_std_prod_idx;
5075                 u32 jmb_prod_idx = dpr->rx_jmb_prod_idx;
5076
5077                 for (i = 1; i < tp->irq_cnt; i++)
5078                         err |= tg3_rx_prodring_xfer(tp, dpr,
5079                                                     &tp->napi[i].prodring);
5080
5081                 wmb();
5082
5083                 if (std_prod_idx != dpr->rx_std_prod_idx)
5084                         tw32_rx_mbox(TG3_RX_STD_PROD_IDX_REG,
5085                                      dpr->rx_std_prod_idx);
5086
5087                 if (jmb_prod_idx != dpr->rx_jmb_prod_idx)
5088                         tw32_rx_mbox(TG3_RX_JMB_PROD_IDX_REG,
5089                                      dpr->rx_jmb_prod_idx);
5090
5091                 mmiowb();
5092
5093                 if (err)
5094                         tw32_f(HOSTCC_MODE, tp->coal_now);
5095         }
5096
5097         return work_done;
5098 }
5099
5100 static int tg3_poll_msix(struct napi_struct *napi, int budget)
5101 {
5102         struct tg3_napi *tnapi = container_of(napi, struct tg3_napi, napi);
5103         struct tg3 *tp = tnapi->tp;
5104         int work_done = 0;
5105         struct tg3_hw_status *sblk = tnapi->hw_status;
5106
5107         while (1) {
5108                 work_done = tg3_poll_work(tnapi, work_done, budget);
5109
5110                 if (unlikely(tp->tg3_flags & TG3_FLAG_TX_RECOVERY_PENDING))
5111                         goto tx_recovery;
5112
5113                 if (unlikely(work_done >= budget))
5114                         break;
5115
5116                 /* tp->last_tag is used in tg3_int_reenable() below
5117                  * to tell the hw how much work has been processed,
5118                  * so we must read it before checking for more work.
5119                  */
5120                 tnapi->last_tag = sblk->status_tag;
5121                 tnapi->last_irq_tag = tnapi->last_tag;
5122                 rmb();
5123
5124                 /* check for RX/TX work to do */
5125                 if (likely(sblk->idx[0].tx_consumer == tnapi->tx_cons &&
5126                            *(tnapi->rx_rcb_prod_idx) == tnapi->rx_rcb_ptr)) {
5127                         napi_complete(napi);
5128                         /* Reenable interrupts. */
5129                         tw32_mailbox(tnapi->int_mbox, tnapi->last_tag << 24);
5130                         mmiowb();
5131                         break;
5132                 }
5133         }
5134
5135         return work_done;
5136
5137 tx_recovery:
5138         /* work_done is guaranteed to be less than budget. */
5139         napi_complete(napi);
5140         schedule_work(&tp->reset_task);
5141         return work_done;
5142 }
5143
5144 static int tg3_poll(struct napi_struct *napi, int budget)
5145 {
5146         struct tg3_napi *tnapi = container_of(napi, struct tg3_napi, napi);
5147         struct tg3 *tp = tnapi->tp;
5148         int work_done = 0;
5149         struct tg3_hw_status *sblk = tnapi->hw_status;
5150
5151         while (1) {
5152                 tg3_poll_link(tp);
5153
5154                 work_done = tg3_poll_work(tnapi, work_done, budget);
5155
5156                 if (unlikely(tp->tg3_flags & TG3_FLAG_TX_RECOVERY_PENDING))
5157                         goto tx_recovery;
5158
5159                 if (unlikely(work_done >= budget))
5160                         break;
5161
5162                 if (tp->tg3_flags & TG3_FLAG_TAGGED_STATUS) {
5163                         /* tp->last_tag is used in tg3_int_reenable() below
5164                          * to tell the hw how much work has been processed,
5165                          * so we must read it before checking for more work.
5166                          */
5167                         tnapi->last_tag = sblk->status_tag;
5168                         tnapi->last_irq_tag = tnapi->last_tag;
5169                         rmb();
5170                 } else
5171                         sblk->status &= ~SD_STATUS_UPDATED;
5172
5173                 if (likely(!tg3_has_work(tnapi))) {
5174                         napi_complete(napi);
5175                         tg3_int_reenable(tnapi);
5176                         break;
5177                 }
5178         }
5179
5180         return work_done;
5181
5182 tx_recovery:
5183         /* work_done is guaranteed to be less than budget. */
5184         napi_complete(napi);
5185         schedule_work(&tp->reset_task);
5186         return work_done;
5187 }
5188
5189 static void tg3_napi_disable(struct tg3 *tp)
5190 {
5191         int i;
5192
5193         for (i = tp->irq_cnt - 1; i >= 0; i--)
5194                 napi_disable(&tp->napi[i].napi);
5195 }
5196
5197 static void tg3_napi_enable(struct tg3 *tp)
5198 {
5199         int i;
5200
5201         for (i = 0; i < tp->irq_cnt; i++)
5202                 napi_enable(&tp->napi[i].napi);
5203 }
5204
5205 static void tg3_napi_init(struct tg3 *tp)
5206 {
5207         int i;
5208
5209         netif_napi_add(tp->dev, &tp->napi[0].napi, tg3_poll, 64);
5210         for (i = 1; i < tp->irq_cnt; i++)
5211                 netif_napi_add(tp->dev, &tp->napi[i].napi, tg3_poll_msix, 64);
5212 }
5213
5214 static void tg3_napi_fini(struct tg3 *tp)
5215 {
5216         int i;
5217
5218         for (i = 0; i < tp->irq_cnt; i++)
5219                 netif_napi_del(&tp->napi[i].napi);
5220 }
5221
5222 static inline void tg3_netif_stop(struct tg3 *tp)
5223 {
5224         tp->dev->trans_start = jiffies; /* prevent tx timeout */
5225         tg3_napi_disable(tp);
5226         netif_tx_disable(tp->dev);
5227 }
5228
5229 static inline void tg3_netif_start(struct tg3 *tp)
5230 {
5231         /* NOTE: unconditional netif_tx_wake_all_queues is only
5232          * appropriate so long as all callers are assured to
5233          * have free tx slots (such as after tg3_init_hw)
5234          */
5235         netif_tx_wake_all_queues(tp->dev);
5236
5237         tg3_napi_enable(tp);
5238         tp->napi[0].hw_status->status |= SD_STATUS_UPDATED;
5239         tg3_enable_ints(tp);
5240 }
5241
5242 static void tg3_irq_quiesce(struct tg3 *tp)
5243 {
5244         int i;
5245
5246         BUG_ON(tp->irq_sync);
5247
5248         tp->irq_sync = 1;
5249         smp_mb();
5250
5251         for (i = 0; i < tp->irq_cnt; i++)
5252                 synchronize_irq(tp->napi[i].irq_vec);
5253 }
5254
5255 /* Fully shutdown all tg3 driver activity elsewhere in the system.
5256  * If irq_sync is non-zero, then the IRQ handler must be synchronized
5257  * with as well.  Most of the time, this is not necessary except when
5258  * shutting down the device.
5259  */
5260 static inline void tg3_full_lock(struct tg3 *tp, int irq_sync)
5261 {
5262         spin_lock_bh(&tp->lock);
5263         if (irq_sync)
5264                 tg3_irq_quiesce(tp);
5265 }
5266
5267 static inline void tg3_full_unlock(struct tg3 *tp)
5268 {
5269         spin_unlock_bh(&tp->lock);
5270 }
5271
5272 /* One-shot MSI handler - Chip automatically disables interrupt
5273  * after sending MSI so driver doesn't have to do it.
5274  */
5275 static irqreturn_t tg3_msi_1shot(int irq, void *dev_id)
5276 {
5277         struct tg3_napi *tnapi = dev_id;
5278         struct tg3 *tp = tnapi->tp;
5279
5280         prefetch(tnapi->hw_status);
5281         if (tnapi->rx_rcb)
5282                 prefetch(&tnapi->rx_rcb[tnapi->rx_rcb_ptr]);
5283
5284         if (likely(!tg3_irq_sync(tp)))
5285                 napi_schedule(&tnapi->napi);
5286
5287         return IRQ_HANDLED;
5288 }
5289
5290 /* MSI ISR - No need to check for interrupt sharing and no need to
5291  * flush status block and interrupt mailbox. PCI ordering rules
5292  * guarantee that MSI will arrive after the status block.
5293  */
5294 static irqreturn_t tg3_msi(int irq, void *dev_id)
5295 {
5296         struct tg3_napi *tnapi = dev_id;
5297         struct tg3 *tp = tnapi->tp;
5298
5299         prefetch(tnapi->hw_status);
5300         if (tnapi->rx_rcb)
5301                 prefetch(&tnapi->rx_rcb[tnapi->rx_rcb_ptr]);
5302         /*
5303          * Writing any value to intr-mbox-0 clears PCI INTA# and
5304          * chip-internal interrupt pending events.
5305          * Writing non-zero to intr-mbox-0 additional tells the
5306          * NIC to stop sending us irqs, engaging "in-intr-handler"
5307          * event coalescing.
5308          */
5309         tw32_mailbox(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
5310         if (likely(!tg3_irq_sync(tp)))
5311                 napi_schedule(&tnapi->napi);
5312
5313         return IRQ_RETVAL(1);
5314 }
5315
5316 static irqreturn_t tg3_interrupt(int irq, void *dev_id)
5317 {
5318         struct tg3_napi *tnapi = dev_id;
5319         struct tg3 *tp = tnapi->tp;
5320         struct tg3_hw_status *sblk = tnapi->hw_status;
5321         unsigned int handled = 1;
5322
5323         /* In INTx mode, it is possible for the interrupt to arrive at
5324          * the CPU before the status block posted prior to the interrupt.
5325          * Reading the PCI State register will confirm whether the
5326          * interrupt is ours and will flush the status block.
5327          */
5328         if (unlikely(!(sblk->status & SD_STATUS_UPDATED))) {
5329                 if ((tp->tg3_flags & TG3_FLAG_CHIP_RESETTING) ||
5330                     (tr32(TG3PCI_PCISTATE) & PCISTATE_INT_NOT_ACTIVE)) {
5331                         handled = 0;
5332                         goto out;
5333                 }
5334         }
5335
5336         /*
5337          * Writing any value to intr-mbox-0 clears PCI INTA# and
5338          * chip-internal interrupt pending events.
5339          * Writing non-zero to intr-mbox-0 additional tells the
5340          * NIC to stop sending us irqs, engaging "in-intr-handler"
5341          * event coalescing.
5342          *
5343          * Flush the mailbox to de-assert the IRQ immediately to prevent
5344          * spurious interrupts.  The flush impacts performance but
5345          * excessive spurious interrupts can be worse in some cases.
5346          */
5347         tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
5348         if (tg3_irq_sync(tp))
5349                 goto out;
5350         sblk->status &= ~SD_STATUS_UPDATED;
5351         if (likely(tg3_has_work(tnapi))) {
5352                 prefetch(&tnapi->rx_rcb[tnapi->rx_rcb_ptr]);
5353                 napi_schedule(&tnapi->napi);
5354         } else {
5355                 /* No work, shared interrupt perhaps?  re-enable
5356                  * interrupts, and flush that PCI write
5357                  */
5358                 tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW,
5359                                0x00000000);
5360         }
5361 out:
5362         return IRQ_RETVAL(handled);
5363 }
5364
5365 static irqreturn_t tg3_interrupt_tagged(int irq, void *dev_id)
5366 {
5367         struct tg3_napi *tnapi = dev_id;
5368         struct tg3 *tp = tnapi->tp;
5369         struct tg3_hw_status *sblk = tnapi->hw_status;
5370         unsigned int handled = 1;
5371
5372         /* In INTx mode, it is possible for the interrupt to arrive at
5373          * the CPU before the status block posted prior to the interrupt.
5374          * Reading the PCI State register will confirm whether the
5375          * interrupt is ours and will flush the status block.
5376          */
5377         if (unlikely(sblk->status_tag == tnapi->last_irq_tag)) {
5378                 if ((tp->tg3_flags & TG3_FLAG_CHIP_RESETTING) ||
5379                     (tr32(TG3PCI_PCISTATE) & PCISTATE_INT_NOT_ACTIVE)) {
5380                         handled = 0;
5381                         goto out;
5382                 }
5383         }
5384
5385         /*
5386          * writing any value to intr-mbox-0 clears PCI INTA# and
5387          * chip-internal interrupt pending events.
5388          * writing non-zero to intr-mbox-0 additional tells the
5389          * NIC to stop sending us irqs, engaging "in-intr-handler"
5390          * event coalescing.
5391          *
5392          * Flush the mailbox to de-assert the IRQ immediately to prevent
5393          * spurious interrupts.  The flush impacts performance but
5394          * excessive spurious interrupts can be worse in some cases.
5395          */
5396         tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
5397
5398         /*
5399          * In a shared interrupt configuration, sometimes other devices'
5400          * interrupts will scream.  We record the current status tag here
5401          * so that the above check can report that the screaming interrupts
5402          * are unhandled.  Eventually they will be silenced.
5403          */
5404         tnapi->last_irq_tag = sblk->status_tag;
5405
5406         if (tg3_irq_sync(tp))
5407                 goto out;
5408
5409         prefetch(&tnapi->rx_rcb[tnapi->rx_rcb_ptr]);
5410
5411         napi_schedule(&tnapi->napi);
5412
5413 out:
5414         return IRQ_RETVAL(handled);
5415 }
5416
5417 /* ISR for interrupt test */
5418 static irqreturn_t tg3_test_isr(int irq, void *dev_id)
5419 {
5420         struct tg3_napi *tnapi = dev_id;
5421         struct tg3 *tp = tnapi->tp;
5422         struct tg3_hw_status *sblk = tnapi->hw_status;
5423
5424         if ((sblk->status & SD_STATUS_UPDATED) ||
5425             !(tr32(TG3PCI_PCISTATE) & PCISTATE_INT_NOT_ACTIVE)) {
5426                 tg3_disable_ints(tp);
5427                 return IRQ_RETVAL(1);
5428         }
5429         return IRQ_RETVAL(0);
5430 }
5431
5432 static int tg3_init_hw(struct tg3 *, int);
5433 static int tg3_halt(struct tg3 *, int, int);
5434
5435 /* Restart hardware after configuration changes, self-test, etc.
5436  * Invoked with tp->lock held.
5437  */
5438 static int tg3_restart_hw(struct tg3 *tp, int reset_phy)
5439         __releases(tp->lock)
5440         __acquires(tp->lock)
5441 {
5442         int err;
5443
5444         err = tg3_init_hw(tp, reset_phy);
5445         if (err) {
5446                 netdev_err(tp->dev,
5447                            "Failed to re-initialize device, aborting\n");
5448                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
5449                 tg3_full_unlock(tp);
5450                 del_timer_sync(&tp->timer);
5451                 tp->irq_sync = 0;
5452                 tg3_napi_enable(tp);
5453                 dev_close(tp->dev);
5454                 tg3_full_lock(tp, 0);
5455         }
5456         return err;
5457 }
5458
5459 #ifdef CONFIG_NET_POLL_CONTROLLER
5460 static void tg3_poll_controller(struct net_device *dev)
5461 {
5462         int i;
5463         struct tg3 *tp = netdev_priv(dev);
5464
5465         for (i = 0; i < tp->irq_cnt; i++)
5466                 tg3_interrupt(tp->napi[i].irq_vec, &tp->napi[i]);
5467 }
5468 #endif
5469
5470 static void tg3_reset_task(struct work_struct *work)
5471 {
5472         struct tg3 *tp = container_of(work, struct tg3, reset_task);
5473         int err;
5474         unsigned int restart_timer;
5475
5476         tg3_full_lock(tp, 0);
5477
5478         if (!netif_running(tp->dev)) {
5479                 tg3_full_unlock(tp);
5480                 return;
5481         }
5482
5483         tg3_full_unlock(tp);
5484
5485         tg3_phy_stop(tp);
5486
5487         tg3_netif_stop(tp);
5488
5489         tg3_full_lock(tp, 1);
5490
5491         restart_timer = tp->tg3_flags2 & TG3_FLG2_RESTART_TIMER;
5492         tp->tg3_flags2 &= ~TG3_FLG2_RESTART_TIMER;
5493
5494         if (tp->tg3_flags & TG3_FLAG_TX_RECOVERY_PENDING) {
5495                 tp->write32_tx_mbox = tg3_write32_tx_mbox;
5496                 tp->write32_rx_mbox = tg3_write_flush_reg32;
5497                 tp->tg3_flags |= TG3_FLAG_MBOX_WRITE_REORDER;
5498                 tp->tg3_flags &= ~TG3_FLAG_TX_RECOVERY_PENDING;
5499         }
5500
5501         tg3_halt(tp, RESET_KIND_SHUTDOWN, 0);
5502         err = tg3_init_hw(tp, 1);
5503         if (err)
5504                 goto out;
5505
5506         tg3_netif_start(tp);
5507
5508         if (restart_timer)
5509                 mod_timer(&tp->timer, jiffies + 1);
5510
5511 out:
5512         tg3_full_unlock(tp);
5513
5514         if (!err)
5515                 tg3_phy_start(tp);
5516 }
5517
5518 static void tg3_dump_short_state(struct tg3 *tp)
5519 {
5520         netdev_err(tp->dev, "DEBUG: MAC_TX_STATUS[%08x] MAC_RX_STATUS[%08x]\n",
5521                    tr32(MAC_TX_STATUS), tr32(MAC_RX_STATUS));
5522         netdev_err(tp->dev, "DEBUG: RDMAC_STATUS[%08x] WDMAC_STATUS[%08x]\n",
5523                    tr32(RDMAC_STATUS), tr32(WDMAC_STATUS));
5524 }
5525
5526 static void tg3_tx_timeout(struct net_device *dev)
5527 {
5528         struct tg3 *tp = netdev_priv(dev);
5529
5530         if (netif_msg_tx_err(tp)) {
5531                 netdev_err(dev, "transmit timed out, resetting\n");
5532                 tg3_dump_short_state(tp);
5533         }
5534
5535         schedule_work(&tp->reset_task);
5536 }
5537
5538 /* Test for DMA buffers crossing any 4GB boundaries: 4G, 8G, etc */
5539 static inline int tg3_4g_overflow_test(dma_addr_t mapping, int len)
5540 {
5541         u32 base = (u32) mapping & 0xffffffff;
5542
5543         return (base > 0xffffdcc0) && (base + len + 8 < base);
5544 }
5545
5546 /* Test for DMA addresses > 40-bit */
5547 static inline int tg3_40bit_overflow_test(struct tg3 *tp, dma_addr_t mapping,
5548                                           int len)
5549 {
5550 #if defined(CONFIG_HIGHMEM) && (BITS_PER_LONG == 64)
5551         if (tp->tg3_flags & TG3_FLAG_40BIT_DMA_BUG)
5552                 return ((u64) mapping + len) > DMA_BIT_MASK(40);
5553         return 0;
5554 #else
5555         return 0;
5556 #endif
5557 }
5558
5559 static void tg3_set_txd(struct tg3_napi *, int, dma_addr_t, int, u32, u32);
5560
5561 /* Workaround 4GB and 40-bit hardware DMA bugs. */
5562 static int tigon3_dma_hwbug_workaround(struct tg3_napi *tnapi,
5563                                        struct sk_buff *skb, u32 last_plus_one,
5564                                        u32 *start, u32 base_flags, u32 mss)
5565 {
5566         struct tg3 *tp = tnapi->tp;
5567         struct sk_buff *new_skb;
5568         dma_addr_t new_addr = 0;
5569         u32 entry = *start;
5570         int i, ret = 0;
5571
5572         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701)
5573                 new_skb = skb_copy(skb, GFP_ATOMIC);
5574         else {
5575                 int more_headroom = 4 - ((unsigned long)skb->data & 3);
5576
5577                 new_skb = skb_copy_expand(skb,
5578                                           skb_headroom(skb) + more_headroom,
5579                                           skb_tailroom(skb), GFP_ATOMIC);
5580         }
5581
5582         if (!new_skb) {
5583                 ret = -1;
5584         } else {
5585                 /* New SKB is guaranteed to be linear. */
5586                 entry = *start;
5587                 new_addr = pci_map_single(tp->pdev, new_skb->data, new_skb->len,
5588                                           PCI_DMA_TODEVICE);
5589                 /* Make sure the mapping succeeded */
5590                 if (pci_dma_mapping_error(tp->pdev, new_addr)) {
5591                         ret = -1;
5592                         dev_kfree_skb(new_skb);
5593                         new_skb = NULL;
5594
5595                 /* Make sure new skb does not cross any 4G boundaries.
5596                  * Drop the packet if it does.
5597                  */
5598                 } else if ((tp->tg3_flags3 & TG3_FLG3_4G_DMA_BNDRY_BUG) &&
5599                             tg3_4g_overflow_test(new_addr, new_skb->len)) {
5600                         pci_unmap_single(tp->pdev, new_addr, new_skb->len,
5601                                          PCI_DMA_TODEVICE);
5602                         ret = -1;
5603                         dev_kfree_skb(new_skb);
5604                         new_skb = NULL;
5605                 } else {
5606                         tg3_set_txd(tnapi, entry, new_addr, new_skb->len,
5607                                     base_flags, 1 | (mss << 1));
5608                         *start = NEXT_TX(entry);
5609                 }
5610         }
5611
5612         /* Now clean up the sw ring entries. */
5613         i = 0;
5614         while (entry != last_plus_one) {
5615                 int len;
5616
5617                 if (i == 0)
5618                         len = skb_headlen(skb);
5619                 else
5620                         len = skb_shinfo(skb)->frags[i-1].size;
5621
5622                 pci_unmap_single(tp->pdev,
5623                                  dma_unmap_addr(&tnapi->tx_buffers[entry],
5624                                                 mapping),
5625                                  len, PCI_DMA_TODEVICE);
5626                 if (i == 0) {
5627                         tnapi->tx_buffers[entry].skb = new_skb;
5628                         dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping,
5629                                            new_addr);
5630                 } else {
5631                         tnapi->tx_buffers[entry].skb = NULL;
5632                 }
5633                 entry = NEXT_TX(entry);
5634                 i++;
5635         }
5636
5637         dev_kfree_skb(skb);
5638
5639         return ret;
5640 }
5641
5642 static void tg3_set_txd(struct tg3_napi *tnapi, int entry,
5643                         dma_addr_t mapping, int len, u32 flags,
5644                         u32 mss_and_is_end)
5645 {
5646         struct tg3_tx_buffer_desc *txd = &tnapi->tx_ring[entry];
5647         int is_end = (mss_and_is_end & 0x1);
5648         u32 mss = (mss_and_is_end >> 1);
5649         u32 vlan_tag = 0;
5650
5651         if (is_end)
5652                 flags |= TXD_FLAG_END;
5653         if (flags & TXD_FLAG_VLAN) {
5654                 vlan_tag = flags >> 16;
5655                 flags &= 0xffff;
5656         }
5657         vlan_tag |= (mss << TXD_MSS_SHIFT);
5658
5659         txd->addr_hi = ((u64) mapping >> 32);
5660         txd->addr_lo = ((u64) mapping & 0xffffffff);
5661         txd->len_flags = (len << TXD_LEN_SHIFT) | flags;
5662         txd->vlan_tag = vlan_tag << TXD_VLAN_TAG_SHIFT;
5663 }
5664
5665 /* hard_start_xmit for devices that don't have any bugs and
5666  * support TG3_FLG2_HW_TSO_2 and TG3_FLG2_HW_TSO_3 only.
5667  */
5668 static netdev_tx_t tg3_start_xmit(struct sk_buff *skb,
5669                                   struct net_device *dev)
5670 {
5671         struct tg3 *tp = netdev_priv(dev);
5672         u32 len, entry, base_flags, mss;
5673         dma_addr_t mapping;
5674         struct tg3_napi *tnapi;
5675         struct netdev_queue *txq;
5676         unsigned int i, last;
5677
5678         txq = netdev_get_tx_queue(dev, skb_get_queue_mapping(skb));
5679         tnapi = &tp->napi[skb_get_queue_mapping(skb)];
5680         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
5681                 tnapi++;
5682
5683         /* We are running in BH disabled context with netif_tx_lock
5684          * and TX reclaim runs via tp->napi.poll inside of a software
5685          * interrupt.  Furthermore, IRQ processing runs lockless so we have
5686          * no IRQ context deadlocks to worry about either.  Rejoice!
5687          */
5688         if (unlikely(tg3_tx_avail(tnapi) <= (skb_shinfo(skb)->nr_frags + 1))) {
5689                 if (!netif_tx_queue_stopped(txq)) {
5690                         netif_tx_stop_queue(txq);
5691
5692                         /* This is a hard error, log it. */
5693                         netdev_err(dev,
5694                                    "BUG! Tx Ring full when queue awake!\n");
5695                 }
5696                 return NETDEV_TX_BUSY;
5697         }
5698
5699         entry = tnapi->tx_prod;
5700         base_flags = 0;
5701         mss = skb_shinfo(skb)->gso_size;
5702         if (mss) {
5703                 int tcp_opt_len, ip_tcp_len;
5704                 u32 hdrlen;
5705
5706                 if (skb_header_cloned(skb) &&
5707                     pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) {
5708                         dev_kfree_skb(skb);
5709                         goto out_unlock;
5710                 }
5711
5712                 if (skb_is_gso_v6(skb)) {
5713                         hdrlen = skb_headlen(skb) - ETH_HLEN;
5714                 } else {
5715                         struct iphdr *iph = ip_hdr(skb);
5716
5717                         tcp_opt_len = tcp_optlen(skb);
5718                         ip_tcp_len = ip_hdrlen(skb) + sizeof(struct tcphdr);
5719
5720                         iph->check = 0;
5721                         iph->tot_len = htons(mss + ip_tcp_len + tcp_opt_len);
5722                         hdrlen = ip_tcp_len + tcp_opt_len;
5723                 }
5724
5725                 if (tp->tg3_flags2 & TG3_FLG2_HW_TSO_3) {
5726                         mss |= (hdrlen & 0xc) << 12;
5727                         if (hdrlen & 0x10)
5728                                 base_flags |= 0x00000010;
5729                         base_flags |= (hdrlen & 0x3e0) << 5;
5730                 } else
5731                         mss |= hdrlen << 9;
5732
5733                 base_flags |= (TXD_FLAG_CPU_PRE_DMA |
5734                                TXD_FLAG_CPU_POST_DMA);
5735
5736                 tcp_hdr(skb)->check = 0;
5737
5738         } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
5739                 base_flags |= TXD_FLAG_TCPUDP_CSUM;
5740         }
5741
5742         if (vlan_tx_tag_present(skb))
5743                 base_flags |= (TXD_FLAG_VLAN |
5744                                (vlan_tx_tag_get(skb) << 16));
5745
5746         len = skb_headlen(skb);
5747
5748         /* Queue skb data, a.k.a. the main skb fragment. */
5749         mapping = pci_map_single(tp->pdev, skb->data, len, PCI_DMA_TODEVICE);
5750         if (pci_dma_mapping_error(tp->pdev, mapping)) {
5751                 dev_kfree_skb(skb);
5752                 goto out_unlock;
5753         }
5754
5755         tnapi->tx_buffers[entry].skb = skb;
5756         dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping, mapping);
5757
5758         if ((tp->tg3_flags3 & TG3_FLG3_USE_JUMBO_BDFLAG) &&
5759             !mss && skb->len > VLAN_ETH_FRAME_LEN)
5760                 base_flags |= TXD_FLAG_JMB_PKT;
5761
5762         tg3_set_txd(tnapi, entry, mapping, len, base_flags,
5763                     (skb_shinfo(skb)->nr_frags == 0) | (mss << 1));
5764
5765         entry = NEXT_TX(entry);
5766
5767         /* Now loop through additional data fragments, and queue them. */
5768         if (skb_shinfo(skb)->nr_frags > 0) {
5769                 last = skb_shinfo(skb)->nr_frags - 1;
5770                 for (i = 0; i <= last; i++) {
5771                         skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
5772
5773                         len = frag->size;
5774                         mapping = pci_map_page(tp->pdev,
5775                                                frag->page,
5776                                                frag->page_offset,
5777                                                len, PCI_DMA_TODEVICE);
5778                         if (pci_dma_mapping_error(tp->pdev, mapping))
5779                                 goto dma_error;
5780
5781                         tnapi->tx_buffers[entry].skb = NULL;
5782                         dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping,
5783                                            mapping);
5784
5785                         tg3_set_txd(tnapi, entry, mapping, len,
5786                                     base_flags, (i == last) | (mss << 1));
5787
5788                         entry = NEXT_TX(entry);
5789                 }
5790         }
5791
5792         /* Packets are ready, update Tx producer idx local and on card. */
5793         tw32_tx_mbox(tnapi->prodmbox, entry);
5794
5795         tnapi->tx_prod = entry;
5796         if (unlikely(tg3_tx_avail(tnapi) <= (MAX_SKB_FRAGS + 1))) {
5797                 netif_tx_stop_queue(txq);
5798
5799                 /* netif_tx_stop_queue() must be done before checking
5800                  * checking tx index in tg3_tx_avail() below, because in
5801                  * tg3_tx(), we update tx index before checking for
5802                  * netif_tx_queue_stopped().
5803                  */
5804                 smp_mb();
5805                 if (tg3_tx_avail(tnapi) > TG3_TX_WAKEUP_THRESH(tnapi))
5806                         netif_tx_wake_queue(txq);
5807         }
5808
5809 out_unlock:
5810         mmiowb();
5811
5812         return NETDEV_TX_OK;
5813
5814 dma_error:
5815         last = i;
5816         entry = tnapi->tx_prod;
5817         tnapi->tx_buffers[entry].skb = NULL;
5818         pci_unmap_single(tp->pdev,
5819                          dma_unmap_addr(&tnapi->tx_buffers[entry], mapping),
5820                          skb_headlen(skb),
5821                          PCI_DMA_TODEVICE);
5822         for (i = 0; i <= last; i++) {
5823                 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
5824                 entry = NEXT_TX(entry);
5825
5826                 pci_unmap_page(tp->pdev,
5827                                dma_unmap_addr(&tnapi->tx_buffers[entry],
5828                                               mapping),
5829                                frag->size, PCI_DMA_TODEVICE);
5830         }
5831
5832         dev_kfree_skb(skb);
5833         return NETDEV_TX_OK;
5834 }
5835
5836 static netdev_tx_t tg3_start_xmit_dma_bug(struct sk_buff *,
5837                                           struct net_device *);
5838
5839 /* Use GSO to workaround a rare TSO bug that may be triggered when the
5840  * TSO header is greater than 80 bytes.
5841  */
5842 static int tg3_tso_bug(struct tg3 *tp, struct sk_buff *skb)
5843 {
5844         struct sk_buff *segs, *nskb;
5845         u32 frag_cnt_est = skb_shinfo(skb)->gso_segs * 3;
5846
5847         /* Estimate the number of fragments in the worst case */
5848         if (unlikely(tg3_tx_avail(&tp->napi[0]) <= frag_cnt_est)) {
5849                 netif_stop_queue(tp->dev);
5850
5851                 /* netif_tx_stop_queue() must be done before checking
5852                  * checking tx index in tg3_tx_avail() below, because in
5853                  * tg3_tx(), we update tx index before checking for
5854                  * netif_tx_queue_stopped().
5855                  */
5856                 smp_mb();
5857                 if (tg3_tx_avail(&tp->napi[0]) <= frag_cnt_est)
5858                         return NETDEV_TX_BUSY;
5859
5860                 netif_wake_queue(tp->dev);
5861         }
5862
5863         segs = skb_gso_segment(skb, tp->dev->features & ~NETIF_F_TSO);
5864         if (IS_ERR(segs))
5865                 goto tg3_tso_bug_end;
5866
5867         do {
5868                 nskb = segs;
5869                 segs = segs->next;
5870                 nskb->next = NULL;
5871                 tg3_start_xmit_dma_bug(nskb, tp->dev);
5872         } while (segs);
5873
5874 tg3_tso_bug_end:
5875         dev_kfree_skb(skb);
5876
5877         return NETDEV_TX_OK;
5878 }
5879
5880 /* hard_start_xmit for devices that have the 4G bug and/or 40-bit bug and
5881  * support TG3_FLG2_HW_TSO_1 or firmware TSO only.
5882  */
5883 static netdev_tx_t tg3_start_xmit_dma_bug(struct sk_buff *skb,
5884                                           struct net_device *dev)
5885 {
5886         struct tg3 *tp = netdev_priv(dev);
5887         u32 len, entry, base_flags, mss;
5888         int would_hit_hwbug;
5889         dma_addr_t mapping;
5890         struct tg3_napi *tnapi;
5891         struct netdev_queue *txq;
5892         unsigned int i, last;
5893
5894         txq = netdev_get_tx_queue(dev, skb_get_queue_mapping(skb));
5895         tnapi = &tp->napi[skb_get_queue_mapping(skb)];
5896         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
5897                 tnapi++;
5898
5899         /* We are running in BH disabled context with netif_tx_lock
5900          * and TX reclaim runs via tp->napi.poll inside of a software
5901          * interrupt.  Furthermore, IRQ processing runs lockless so we have
5902          * no IRQ context deadlocks to worry about either.  Rejoice!
5903          */
5904         if (unlikely(tg3_tx_avail(tnapi) <= (skb_shinfo(skb)->nr_frags + 1))) {
5905                 if (!netif_tx_queue_stopped(txq)) {
5906                         netif_tx_stop_queue(txq);
5907
5908                         /* This is a hard error, log it. */
5909                         netdev_err(dev,
5910                                    "BUG! Tx Ring full when queue awake!\n");
5911                 }
5912                 return NETDEV_TX_BUSY;
5913         }
5914
5915         entry = tnapi->tx_prod;
5916         base_flags = 0;
5917         if (skb->ip_summed == CHECKSUM_PARTIAL)
5918                 base_flags |= TXD_FLAG_TCPUDP_CSUM;
5919
5920         mss = skb_shinfo(skb)->gso_size;
5921         if (mss) {
5922                 struct iphdr *iph;
5923                 u32 tcp_opt_len, hdr_len;
5924
5925                 if (skb_header_cloned(skb) &&
5926                     pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) {
5927                         dev_kfree_skb(skb);
5928                         goto out_unlock;
5929                 }
5930
5931                 iph = ip_hdr(skb);
5932                 tcp_opt_len = tcp_optlen(skb);
5933
5934                 if (skb_is_gso_v6(skb)) {
5935                         hdr_len = skb_headlen(skb) - ETH_HLEN;
5936                 } else {
5937                         u32 ip_tcp_len;
5938
5939                         ip_tcp_len = ip_hdrlen(skb) + sizeof(struct tcphdr);
5940                         hdr_len = ip_tcp_len + tcp_opt_len;
5941
5942                         iph->check = 0;
5943                         iph->tot_len = htons(mss + hdr_len);
5944                 }
5945
5946                 if (unlikely((ETH_HLEN + hdr_len) > 80) &&
5947                              (tp->tg3_flags2 & TG3_FLG2_TSO_BUG))
5948                         return tg3_tso_bug(tp, skb);
5949
5950                 base_flags |= (TXD_FLAG_CPU_PRE_DMA |
5951                                TXD_FLAG_CPU_POST_DMA);
5952
5953                 if (tp->tg3_flags2 & TG3_FLG2_HW_TSO) {
5954                         tcp_hdr(skb)->check = 0;
5955                         base_flags &= ~TXD_FLAG_TCPUDP_CSUM;
5956                 } else
5957                         tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
5958                                                                  iph->daddr, 0,
5959                                                                  IPPROTO_TCP,
5960                                                                  0);
5961
5962                 if (tp->tg3_flags2 & TG3_FLG2_HW_TSO_3) {
5963                         mss |= (hdr_len & 0xc) << 12;
5964                         if (hdr_len & 0x10)
5965                                 base_flags |= 0x00000010;
5966                         base_flags |= (hdr_len & 0x3e0) << 5;
5967                 } else if (tp->tg3_flags2 & TG3_FLG2_HW_TSO_2)
5968                         mss |= hdr_len << 9;
5969                 else if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_1) ||
5970                          GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
5971                         if (tcp_opt_len || iph->ihl > 5) {
5972                                 int tsflags;
5973
5974                                 tsflags = (iph->ihl - 5) + (tcp_opt_len >> 2);
5975                                 mss |= (tsflags << 11);
5976                         }
5977                 } else {
5978                         if (tcp_opt_len || iph->ihl > 5) {
5979                                 int tsflags;
5980
5981                                 tsflags = (iph->ihl - 5) + (tcp_opt_len >> 2);
5982                                 base_flags |= tsflags << 12;
5983                         }
5984                 }
5985         }
5986
5987         if (vlan_tx_tag_present(skb))
5988                 base_flags |= (TXD_FLAG_VLAN |
5989                                (vlan_tx_tag_get(skb) << 16));
5990
5991         if ((tp->tg3_flags3 & TG3_FLG3_USE_JUMBO_BDFLAG) &&
5992             !mss && skb->len > VLAN_ETH_FRAME_LEN)
5993                 base_flags |= TXD_FLAG_JMB_PKT;
5994
5995         len = skb_headlen(skb);
5996
5997         mapping = pci_map_single(tp->pdev, skb->data, len, PCI_DMA_TODEVICE);
5998         if (pci_dma_mapping_error(tp->pdev, mapping)) {
5999                 dev_kfree_skb(skb);
6000                 goto out_unlock;
6001         }
6002
6003         tnapi->tx_buffers[entry].skb = skb;
6004         dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping, mapping);
6005
6006         would_hit_hwbug = 0;
6007
6008         if ((tp->tg3_flags3 & TG3_FLG3_SHORT_DMA_BUG) && len <= 8)
6009                 would_hit_hwbug = 1;
6010
6011         if ((tp->tg3_flags3 & TG3_FLG3_4G_DMA_BNDRY_BUG) &&
6012             tg3_4g_overflow_test(mapping, len))
6013                 would_hit_hwbug = 1;
6014
6015         if ((tp->tg3_flags3 & TG3_FLG3_40BIT_DMA_LIMIT_BUG) &&
6016             tg3_40bit_overflow_test(tp, mapping, len))
6017                 would_hit_hwbug = 1;
6018
6019         if (tp->tg3_flags3 & TG3_FLG3_5701_DMA_BUG)
6020                 would_hit_hwbug = 1;
6021
6022         tg3_set_txd(tnapi, entry, mapping, len, base_flags,
6023                     (skb_shinfo(skb)->nr_frags == 0) | (mss << 1));
6024
6025         entry = NEXT_TX(entry);
6026
6027         /* Now loop through additional data fragments, and queue them. */
6028         if (skb_shinfo(skb)->nr_frags > 0) {
6029                 last = skb_shinfo(skb)->nr_frags - 1;
6030                 for (i = 0; i <= last; i++) {
6031                         skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
6032
6033                         len = frag->size;
6034                         mapping = pci_map_page(tp->pdev,
6035                                                frag->page,
6036                                                frag->page_offset,
6037                                                len, PCI_DMA_TODEVICE);
6038
6039                         tnapi->tx_buffers[entry].skb = NULL;
6040                         dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping,
6041                                            mapping);
6042                         if (pci_dma_mapping_error(tp->pdev, mapping))
6043                                 goto dma_error;
6044
6045                         if ((tp->tg3_flags3 & TG3_FLG3_SHORT_DMA_BUG) &&
6046                             len <= 8)
6047                                 would_hit_hwbug = 1;
6048
6049                         if ((tp->tg3_flags3 & TG3_FLG3_4G_DMA_BNDRY_BUG) &&
6050                             tg3_4g_overflow_test(mapping, len))
6051                                 would_hit_hwbug = 1;
6052
6053                         if ((tp->tg3_flags3 & TG3_FLG3_40BIT_DMA_LIMIT_BUG) &&
6054                             tg3_40bit_overflow_test(tp, mapping, len))
6055                                 would_hit_hwbug = 1;
6056
6057                         if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
6058                                 tg3_set_txd(tnapi, entry, mapping, len,
6059                                             base_flags, (i == last)|(mss << 1));
6060                         else
6061                                 tg3_set_txd(tnapi, entry, mapping, len,
6062                                             base_flags, (i == last));
6063
6064                         entry = NEXT_TX(entry);
6065                 }
6066         }
6067
6068         if (would_hit_hwbug) {
6069                 u32 last_plus_one = entry;
6070                 u32 start;
6071
6072                 start = entry - 1 - skb_shinfo(skb)->nr_frags;
6073                 start &= (TG3_TX_RING_SIZE - 1);
6074
6075                 /* If the workaround fails due to memory/mapping
6076                  * failure, silently drop this packet.
6077                  */
6078                 if (tigon3_dma_hwbug_workaround(tnapi, skb, last_plus_one,
6079                                                 &start, base_flags, mss))
6080                         goto out_unlock;
6081
6082                 entry = start;
6083         }
6084
6085         /* Packets are ready, update Tx producer idx local and on card. */
6086         tw32_tx_mbox(tnapi->prodmbox, entry);
6087
6088         tnapi->tx_prod = entry;
6089         if (unlikely(tg3_tx_avail(tnapi) <= (MAX_SKB_FRAGS + 1))) {
6090                 netif_tx_stop_queue(txq);
6091
6092                 /* netif_tx_stop_queue() must be done before checking
6093                  * checking tx index in tg3_tx_avail() below, because in
6094                  * tg3_tx(), we update tx index before checking for
6095                  * netif_tx_queue_stopped().
6096                  */
6097                 smp_mb();
6098                 if (tg3_tx_avail(tnapi) > TG3_TX_WAKEUP_THRESH(tnapi))
6099                         netif_tx_wake_queue(txq);
6100         }
6101
6102 out_unlock:
6103         mmiowb();
6104
6105         return NETDEV_TX_OK;
6106
6107 dma_error:
6108         last = i;
6109         entry = tnapi->tx_prod;
6110         tnapi->tx_buffers[entry].skb = NULL;
6111         pci_unmap_single(tp->pdev,
6112                          dma_unmap_addr(&tnapi->tx_buffers[entry], mapping),
6113                          skb_headlen(skb),
6114                          PCI_DMA_TODEVICE);
6115         for (i = 0; i <= last; i++) {
6116                 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
6117                 entry = NEXT_TX(entry);
6118
6119                 pci_unmap_page(tp->pdev,
6120                                dma_unmap_addr(&tnapi->tx_buffers[entry],
6121                                               mapping),
6122                                frag->size, PCI_DMA_TODEVICE);
6123         }
6124
6125         dev_kfree_skb(skb);
6126         return NETDEV_TX_OK;
6127 }
6128
6129 static inline void tg3_set_mtu(struct net_device *dev, struct tg3 *tp,
6130                                int new_mtu)
6131 {
6132         dev->mtu = new_mtu;
6133
6134         if (new_mtu > ETH_DATA_LEN) {
6135                 if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) {
6136                         tp->tg3_flags2 &= ~TG3_FLG2_TSO_CAPABLE;
6137                         ethtool_op_set_tso(dev, 0);
6138                 } else {
6139                         tp->tg3_flags |= TG3_FLAG_JUMBO_RING_ENABLE;
6140                 }
6141         } else {
6142                 if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)
6143                         tp->tg3_flags2 |= TG3_FLG2_TSO_CAPABLE;
6144                 tp->tg3_flags &= ~TG3_FLAG_JUMBO_RING_ENABLE;
6145         }
6146 }
6147
6148 static int tg3_change_mtu(struct net_device *dev, int new_mtu)
6149 {
6150         struct tg3 *tp = netdev_priv(dev);
6151         int err;
6152
6153         if (new_mtu < TG3_MIN_MTU || new_mtu > TG3_MAX_MTU(tp))
6154                 return -EINVAL;
6155
6156         if (!netif_running(dev)) {
6157                 /* We'll just catch it later when the
6158                  * device is up'd.
6159                  */
6160                 tg3_set_mtu(dev, tp, new_mtu);
6161                 return 0;
6162         }
6163
6164         tg3_phy_stop(tp);
6165
6166         tg3_netif_stop(tp);
6167
6168         tg3_full_lock(tp, 1);
6169
6170         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
6171
6172         tg3_set_mtu(dev, tp, new_mtu);
6173
6174         err = tg3_restart_hw(tp, 0);
6175
6176         if (!err)
6177                 tg3_netif_start(tp);
6178
6179         tg3_full_unlock(tp);
6180
6181         if (!err)
6182                 tg3_phy_start(tp);
6183
6184         return err;
6185 }
6186
6187 static void tg3_rx_prodring_free(struct tg3 *tp,
6188                                  struct tg3_rx_prodring_set *tpr)
6189 {
6190         int i;
6191
6192         if (tpr != &tp->napi[0].prodring) {
6193                 for (i = tpr->rx_std_cons_idx; i != tpr->rx_std_prod_idx;
6194                      i = (i + 1) & tp->rx_std_ring_mask)
6195                         tg3_rx_skb_free(tp, &tpr->rx_std_buffers[i],
6196                                         tp->rx_pkt_map_sz);
6197
6198                 if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) {
6199                         for (i = tpr->rx_jmb_cons_idx;
6200                              i != tpr->rx_jmb_prod_idx;
6201                              i = (i + 1) & tp->rx_jmb_ring_mask) {
6202                                 tg3_rx_skb_free(tp, &tpr->rx_jmb_buffers[i],
6203                                                 TG3_RX_JMB_MAP_SZ);
6204                         }
6205                 }
6206
6207                 return;
6208         }
6209
6210         for (i = 0; i <= tp->rx_std_ring_mask; i++)
6211                 tg3_rx_skb_free(tp, &tpr->rx_std_buffers[i],
6212                                 tp->rx_pkt_map_sz);
6213
6214         if ((tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) &&
6215             !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
6216                 for (i = 0; i <= tp->rx_jmb_ring_mask; i++)
6217                         tg3_rx_skb_free(tp, &tpr->rx_jmb_buffers[i],
6218                                         TG3_RX_JMB_MAP_SZ);
6219         }
6220 }
6221
6222 /* Initialize rx rings for packet processing.
6223  *
6224  * The chip has been shut down and the driver detached from
6225  * the networking, so no interrupts or new tx packets will
6226  * end up in the driver.  tp->{tx,}lock are held and thus
6227  * we may not sleep.
6228  */
6229 static int tg3_rx_prodring_alloc(struct tg3 *tp,
6230                                  struct tg3_rx_prodring_set *tpr)
6231 {
6232         u32 i, rx_pkt_dma_sz;
6233
6234         tpr->rx_std_cons_idx = 0;
6235         tpr->rx_std_prod_idx = 0;
6236         tpr->rx_jmb_cons_idx = 0;
6237         tpr->rx_jmb_prod_idx = 0;
6238
6239         if (tpr != &tp->napi[0].prodring) {
6240                 memset(&tpr->rx_std_buffers[0], 0,
6241                        TG3_RX_STD_BUFF_RING_SIZE(tp));
6242                 if (tpr->rx_jmb_buffers)
6243                         memset(&tpr->rx_jmb_buffers[0], 0,
6244                                TG3_RX_JMB_BUFF_RING_SIZE(tp));
6245                 goto done;
6246         }
6247
6248         /* Zero out all descriptors. */
6249         memset(tpr->rx_std, 0, TG3_RX_STD_RING_BYTES(tp));
6250
6251         rx_pkt_dma_sz = TG3_RX_STD_DMA_SZ;
6252         if ((tp->tg3_flags2 & TG3_FLG2_5780_CLASS) &&
6253             tp->dev->mtu > ETH_DATA_LEN)
6254                 rx_pkt_dma_sz = TG3_RX_JMB_DMA_SZ;
6255         tp->rx_pkt_map_sz = TG3_RX_DMA_TO_MAP_SZ(rx_pkt_dma_sz);
6256
6257         /* Initialize invariants of the rings, we only set this
6258          * stuff once.  This works because the card does not
6259          * write into the rx buffer posting rings.
6260          */
6261         for (i = 0; i <= tp->rx_std_ring_mask; i++) {
6262                 struct tg3_rx_buffer_desc *rxd;
6263
6264                 rxd = &tpr->rx_std[i];
6265                 rxd->idx_len = rx_pkt_dma_sz << RXD_LEN_SHIFT;
6266                 rxd->type_flags = (RXD_FLAG_END << RXD_FLAGS_SHIFT);
6267                 rxd->opaque = (RXD_OPAQUE_RING_STD |
6268                                (i << RXD_OPAQUE_INDEX_SHIFT));
6269         }
6270
6271         /* Now allocate fresh SKBs for each rx ring. */
6272         for (i = 0; i < tp->rx_pending; i++) {
6273                 if (tg3_alloc_rx_skb(tp, tpr, RXD_OPAQUE_RING_STD, i) < 0) {
6274                         netdev_warn(tp->dev,
6275                                     "Using a smaller RX standard ring. Only "
6276                                     "%d out of %d buffers were allocated "
6277                                     "successfully\n", i, tp->rx_pending);
6278                         if (i == 0)
6279                                 goto initfail;
6280                         tp->rx_pending = i;
6281                         break;
6282                 }
6283         }
6284
6285         if (!(tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) ||
6286             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
6287                 goto done;
6288
6289         memset(tpr->rx_jmb, 0, TG3_RX_JMB_RING_BYTES(tp));
6290
6291         if (!(tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE))
6292                 goto done;
6293
6294         for (i = 0; i <= tp->rx_jmb_ring_mask; i++) {
6295                 struct tg3_rx_buffer_desc *rxd;
6296
6297                 rxd = &tpr->rx_jmb[i].std;
6298                 rxd->idx_len = TG3_RX_JMB_DMA_SZ << RXD_LEN_SHIFT;
6299                 rxd->type_flags = (RXD_FLAG_END << RXD_FLAGS_SHIFT) |
6300                                   RXD_FLAG_JUMBO;
6301                 rxd->opaque = (RXD_OPAQUE_RING_JUMBO |
6302                        (i << RXD_OPAQUE_INDEX_SHIFT));
6303         }
6304
6305         for (i = 0; i < tp->rx_jumbo_pending; i++) {
6306                 if (tg3_alloc_rx_skb(tp, tpr, RXD_OPAQUE_RING_JUMBO, i) < 0) {
6307                         netdev_warn(tp->dev,
6308                                     "Using a smaller RX jumbo ring. Only %d "
6309                                     "out of %d buffers were allocated "
6310                                     "successfully\n", i, tp->rx_jumbo_pending);
6311                         if (i == 0)
6312                                 goto initfail;
6313                         tp->rx_jumbo_pending = i;
6314                         break;
6315                 }
6316         }
6317
6318 done:
6319         return 0;
6320
6321 initfail:
6322         tg3_rx_prodring_free(tp, tpr);
6323         return -ENOMEM;
6324 }
6325
6326 static void tg3_rx_prodring_fini(struct tg3 *tp,
6327                                  struct tg3_rx_prodring_set *tpr)
6328 {
6329         kfree(tpr->rx_std_buffers);
6330         tpr->rx_std_buffers = NULL;
6331         kfree(tpr->rx_jmb_buffers);
6332         tpr->rx_jmb_buffers = NULL;
6333         if (tpr->rx_std) {
6334                 dma_free_coherent(&tp->pdev->dev, TG3_RX_STD_RING_BYTES(tp),
6335                                   tpr->rx_std, tpr->rx_std_mapping);
6336                 tpr->rx_std = NULL;
6337         }
6338         if (tpr->rx_jmb) {
6339                 dma_free_coherent(&tp->pdev->dev, TG3_RX_JMB_RING_BYTES(tp),
6340                                   tpr->rx_jmb, tpr->rx_jmb_mapping);
6341                 tpr->rx_jmb = NULL;
6342         }
6343 }
6344
6345 static int tg3_rx_prodring_init(struct tg3 *tp,
6346                                 struct tg3_rx_prodring_set *tpr)
6347 {
6348         tpr->rx_std_buffers = kzalloc(TG3_RX_STD_BUFF_RING_SIZE(tp),
6349                                       GFP_KERNEL);
6350         if (!tpr->rx_std_buffers)
6351                 return -ENOMEM;
6352
6353         tpr->rx_std = dma_alloc_coherent(&tp->pdev->dev,
6354                                          TG3_RX_STD_RING_BYTES(tp),
6355                                          &tpr->rx_std_mapping,
6356                                          GFP_KERNEL);
6357         if (!tpr->rx_std)
6358                 goto err_out;
6359
6360         if ((tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) &&
6361             !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
6362                 tpr->rx_jmb_buffers = kzalloc(TG3_RX_JMB_BUFF_RING_SIZE(tp),
6363                                               GFP_KERNEL);
6364                 if (!tpr->rx_jmb_buffers)
6365                         goto err_out;
6366
6367                 tpr->rx_jmb = dma_alloc_coherent(&tp->pdev->dev,
6368                                                  TG3_RX_JMB_RING_BYTES(tp),
6369                                                  &tpr->rx_jmb_mapping,
6370                                                  GFP_KERNEL);
6371                 if (!tpr->rx_jmb)
6372                         goto err_out;
6373         }
6374
6375         return 0;
6376
6377 err_out:
6378         tg3_rx_prodring_fini(tp, tpr);
6379         return -ENOMEM;
6380 }
6381
6382 /* Free up pending packets in all rx/tx rings.
6383  *
6384  * The chip has been shut down and the driver detached from
6385  * the networking, so no interrupts or new tx packets will
6386  * end up in the driver.  tp->{tx,}lock is not held and we are not
6387  * in an interrupt context and thus may sleep.
6388  */
6389 static void tg3_free_rings(struct tg3 *tp)
6390 {
6391         int i, j;
6392
6393         for (j = 0; j < tp->irq_cnt; j++) {
6394                 struct tg3_napi *tnapi = &tp->napi[j];
6395
6396                 tg3_rx_prodring_free(tp, &tnapi->prodring);
6397
6398                 if (!tnapi->tx_buffers)
6399                         continue;
6400
6401                 for (i = 0; i < TG3_TX_RING_SIZE; ) {
6402                         struct ring_info *txp;
6403                         struct sk_buff *skb;
6404                         unsigned int k;
6405
6406                         txp = &tnapi->tx_buffers[i];
6407                         skb = txp->skb;
6408
6409                         if (skb == NULL) {
6410                                 i++;
6411                                 continue;
6412                         }
6413
6414                         pci_unmap_single(tp->pdev,
6415                                          dma_unmap_addr(txp, mapping),
6416                                          skb_headlen(skb),
6417                                          PCI_DMA_TODEVICE);
6418                         txp->skb = NULL;
6419
6420                         i++;
6421
6422                         for (k = 0; k < skb_shinfo(skb)->nr_frags; k++) {
6423                                 txp = &tnapi->tx_buffers[i & (TG3_TX_RING_SIZE - 1)];
6424                                 pci_unmap_page(tp->pdev,
6425                                                dma_unmap_addr(txp, mapping),
6426                                                skb_shinfo(skb)->frags[k].size,
6427                                                PCI_DMA_TODEVICE);
6428                                 i++;
6429                         }
6430
6431                         dev_kfree_skb_any(skb);
6432                 }
6433         }
6434 }
6435
6436 /* Initialize tx/rx rings for packet processing.
6437  *
6438  * The chip has been shut down and the driver detached from
6439  * the networking, so no interrupts or new tx packets will
6440  * end up in the driver.  tp->{tx,}lock are held and thus
6441  * we may not sleep.
6442  */
6443 static int tg3_init_rings(struct tg3 *tp)
6444 {
6445         int i;
6446
6447         /* Free up all the SKBs. */
6448         tg3_free_rings(tp);
6449
6450         for (i = 0; i < tp->irq_cnt; i++) {
6451                 struct tg3_napi *tnapi = &tp->napi[i];
6452
6453                 tnapi->last_tag = 0;
6454                 tnapi->last_irq_tag = 0;
6455                 tnapi->hw_status->status = 0;
6456                 tnapi->hw_status->status_tag = 0;
6457                 memset(tnapi->hw_status, 0, TG3_HW_STATUS_SIZE);
6458
6459                 tnapi->tx_prod = 0;
6460                 tnapi->tx_cons = 0;
6461                 if (tnapi->tx_ring)
6462                         memset(tnapi->tx_ring, 0, TG3_TX_RING_BYTES);
6463
6464                 tnapi->rx_rcb_ptr = 0;
6465                 if (tnapi->rx_rcb)
6466                         memset(tnapi->rx_rcb, 0, TG3_RX_RCB_RING_BYTES(tp));
6467
6468                 if (tg3_rx_prodring_alloc(tp, &tnapi->prodring)) {
6469                         tg3_free_rings(tp);
6470                         return -ENOMEM;
6471                 }
6472         }
6473
6474         return 0;
6475 }
6476
6477 /*
6478  * Must not be invoked with interrupt sources disabled and
6479  * the hardware shutdown down.
6480  */
6481 static void tg3_free_consistent(struct tg3 *tp)
6482 {
6483         int i;
6484
6485         for (i = 0; i < tp->irq_cnt; i++) {
6486                 struct tg3_napi *tnapi = &tp->napi[i];
6487
6488                 if (tnapi->tx_ring) {
6489                         dma_free_coherent(&tp->pdev->dev, TG3_TX_RING_BYTES,
6490                                 tnapi->tx_ring, tnapi->tx_desc_mapping);
6491                         tnapi->tx_ring = NULL;
6492                 }
6493
6494                 kfree(tnapi->tx_buffers);
6495                 tnapi->tx_buffers = NULL;
6496
6497                 if (tnapi->rx_rcb) {
6498                         dma_free_coherent(&tp->pdev->dev,
6499                                           TG3_RX_RCB_RING_BYTES(tp),
6500                                           tnapi->rx_rcb,
6501                                           tnapi->rx_rcb_mapping);
6502                         tnapi->rx_rcb = NULL;
6503                 }
6504
6505                 tg3_rx_prodring_fini(tp, &tnapi->prodring);
6506
6507                 if (tnapi->hw_status) {
6508                         dma_free_coherent(&tp->pdev->dev, TG3_HW_STATUS_SIZE,
6509                                           tnapi->hw_status,
6510                                           tnapi->status_mapping);
6511                         tnapi->hw_status = NULL;
6512                 }
6513         }
6514
6515         if (tp->hw_stats) {
6516                 dma_free_coherent(&tp->pdev->dev, sizeof(struct tg3_hw_stats),
6517                                   tp->hw_stats, tp->stats_mapping);
6518                 tp->hw_stats = NULL;
6519         }
6520 }
6521
6522 /*
6523  * Must not be invoked with interrupt sources disabled and
6524  * the hardware shutdown down.  Can sleep.
6525  */
6526 static int tg3_alloc_consistent(struct tg3 *tp)
6527 {
6528         int i;
6529
6530         tp->hw_stats = dma_alloc_coherent(&tp->pdev->dev,
6531                                           sizeof(struct tg3_hw_stats),
6532                                           &tp->stats_mapping,
6533                                           GFP_KERNEL);
6534         if (!tp->hw_stats)
6535                 goto err_out;
6536
6537         memset(tp->hw_stats, 0, sizeof(struct tg3_hw_stats));
6538
6539         for (i = 0; i < tp->irq_cnt; i++) {
6540                 struct tg3_napi *tnapi = &tp->napi[i];
6541                 struct tg3_hw_status *sblk;
6542
6543                 tnapi->hw_status = dma_alloc_coherent(&tp->pdev->dev,
6544                                                       TG3_HW_STATUS_SIZE,
6545                                                       &tnapi->status_mapping,
6546                                                       GFP_KERNEL);
6547                 if (!tnapi->hw_status)
6548                         goto err_out;
6549
6550                 memset(tnapi->hw_status, 0, TG3_HW_STATUS_SIZE);
6551                 sblk = tnapi->hw_status;
6552
6553                 if (tg3_rx_prodring_init(tp, &tnapi->prodring))
6554                         goto err_out;
6555
6556                 /* If multivector TSS is enabled, vector 0 does not handle
6557                  * tx interrupts.  Don't allocate any resources for it.
6558                  */
6559                 if ((!i && !(tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)) ||
6560                     (i && (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS))) {
6561                         tnapi->tx_buffers = kzalloc(sizeof(struct ring_info) *
6562                                                     TG3_TX_RING_SIZE,
6563                                                     GFP_KERNEL);
6564                         if (!tnapi->tx_buffers)
6565                                 goto err_out;
6566
6567                         tnapi->tx_ring = dma_alloc_coherent(&tp->pdev->dev,
6568                                                             TG3_TX_RING_BYTES,
6569                                                         &tnapi->tx_desc_mapping,
6570                                                             GFP_KERNEL);
6571                         if (!tnapi->tx_ring)
6572                                 goto err_out;
6573                 }
6574
6575                 /*
6576                  * When RSS is enabled, the status block format changes
6577                  * slightly.  The "rx_jumbo_consumer", "reserved",
6578                  * and "rx_mini_consumer" members get mapped to the
6579                  * other three rx return ring producer indexes.
6580                  */
6581                 switch (i) {
6582                 default:
6583                         tnapi->rx_rcb_prod_idx = &sblk->idx[0].rx_producer;
6584                         break;
6585                 case 2:
6586                         tnapi->rx_rcb_prod_idx = &sblk->rx_jumbo_consumer;
6587                         break;
6588                 case 3:
6589                         tnapi->rx_rcb_prod_idx = &sblk->reserved;
6590                         break;
6591                 case 4:
6592                         tnapi->rx_rcb_prod_idx = &sblk->rx_mini_consumer;
6593                         break;
6594                 }
6595
6596                 /*
6597                  * If multivector RSS is enabled, vector 0 does not handle
6598                  * rx or tx interrupts.  Don't allocate any resources for it.
6599                  */
6600                 if (!i && (tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS))
6601                         continue;
6602
6603                 tnapi->rx_rcb = dma_alloc_coherent(&tp->pdev->dev,
6604                                                    TG3_RX_RCB_RING_BYTES(tp),
6605                                                    &tnapi->rx_rcb_mapping,
6606                                                    GFP_KERNEL);
6607                 if (!tnapi->rx_rcb)
6608                         goto err_out;
6609
6610                 memset(tnapi->rx_rcb, 0, TG3_RX_RCB_RING_BYTES(tp));
6611         }
6612
6613         return 0;
6614
6615 err_out:
6616         tg3_free_consistent(tp);
6617         return -ENOMEM;
6618 }
6619
6620 #define MAX_WAIT_CNT 1000
6621
6622 /* To stop a block, clear the enable bit and poll till it
6623  * clears.  tp->lock is held.
6624  */
6625 static int tg3_stop_block(struct tg3 *tp, unsigned long ofs, u32 enable_bit, int silent)
6626 {
6627         unsigned int i;
6628         u32 val;
6629
6630         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
6631                 switch (ofs) {
6632                 case RCVLSC_MODE:
6633                 case DMAC_MODE:
6634                 case MBFREE_MODE:
6635                 case BUFMGR_MODE:
6636                 case MEMARB_MODE:
6637                         /* We can't enable/disable these bits of the
6638                          * 5705/5750, just say success.
6639                          */
6640                         return 0;
6641
6642                 default:
6643                         break;
6644                 }
6645         }
6646
6647         val = tr32(ofs);
6648         val &= ~enable_bit;
6649         tw32_f(ofs, val);
6650
6651         for (i = 0; i < MAX_WAIT_CNT; i++) {
6652                 udelay(100);
6653                 val = tr32(ofs);
6654                 if ((val & enable_bit) == 0)
6655                         break;
6656         }
6657
6658         if (i == MAX_WAIT_CNT && !silent) {
6659                 dev_err(&tp->pdev->dev,
6660                         "tg3_stop_block timed out, ofs=%lx enable_bit=%x\n",
6661                         ofs, enable_bit);
6662                 return -ENODEV;
6663         }
6664
6665         return 0;
6666 }
6667
6668 /* tp->lock is held. */
6669 static int tg3_abort_hw(struct tg3 *tp, int silent)
6670 {
6671         int i, err;
6672
6673         tg3_disable_ints(tp);
6674
6675         tp->rx_mode &= ~RX_MODE_ENABLE;
6676         tw32_f(MAC_RX_MODE, tp->rx_mode);
6677         udelay(10);
6678
6679         err  = tg3_stop_block(tp, RCVBDI_MODE, RCVBDI_MODE_ENABLE, silent);
6680         err |= tg3_stop_block(tp, RCVLPC_MODE, RCVLPC_MODE_ENABLE, silent);
6681         err |= tg3_stop_block(tp, RCVLSC_MODE, RCVLSC_MODE_ENABLE, silent);
6682         err |= tg3_stop_block(tp, RCVDBDI_MODE, RCVDBDI_MODE_ENABLE, silent);
6683         err |= tg3_stop_block(tp, RCVDCC_MODE, RCVDCC_MODE_ENABLE, silent);
6684         err |= tg3_stop_block(tp, RCVCC_MODE, RCVCC_MODE_ENABLE, silent);
6685
6686         err |= tg3_stop_block(tp, SNDBDS_MODE, SNDBDS_MODE_ENABLE, silent);
6687         err |= tg3_stop_block(tp, SNDBDI_MODE, SNDBDI_MODE_ENABLE, silent);
6688         err |= tg3_stop_block(tp, SNDDATAI_MODE, SNDDATAI_MODE_ENABLE, silent);
6689         err |= tg3_stop_block(tp, RDMAC_MODE, RDMAC_MODE_ENABLE, silent);
6690         err |= tg3_stop_block(tp, SNDDATAC_MODE, SNDDATAC_MODE_ENABLE, silent);
6691         err |= tg3_stop_block(tp, DMAC_MODE, DMAC_MODE_ENABLE, silent);
6692         err |= tg3_stop_block(tp, SNDBDC_MODE, SNDBDC_MODE_ENABLE, silent);
6693
6694         tp->mac_mode &= ~MAC_MODE_TDE_ENABLE;
6695         tw32_f(MAC_MODE, tp->mac_mode);
6696         udelay(40);
6697
6698         tp->tx_mode &= ~TX_MODE_ENABLE;
6699         tw32_f(MAC_TX_MODE, tp->tx_mode);
6700
6701         for (i = 0; i < MAX_WAIT_CNT; i++) {
6702                 udelay(100);
6703                 if (!(tr32(MAC_TX_MODE) & TX_MODE_ENABLE))
6704                         break;
6705         }
6706         if (i >= MAX_WAIT_CNT) {
6707                 dev_err(&tp->pdev->dev,
6708                         "%s timed out, TX_MODE_ENABLE will not clear "
6709                         "MAC_TX_MODE=%08x\n", __func__, tr32(MAC_TX_MODE));
6710                 err |= -ENODEV;
6711         }
6712
6713         err |= tg3_stop_block(tp, HOSTCC_MODE, HOSTCC_MODE_ENABLE, silent);
6714         err |= tg3_stop_block(tp, WDMAC_MODE, WDMAC_MODE_ENABLE, silent);
6715         err |= tg3_stop_block(tp, MBFREE_MODE, MBFREE_MODE_ENABLE, silent);
6716
6717         tw32(FTQ_RESET, 0xffffffff);
6718         tw32(FTQ_RESET, 0x00000000);
6719
6720         err |= tg3_stop_block(tp, BUFMGR_MODE, BUFMGR_MODE_ENABLE, silent);
6721         err |= tg3_stop_block(tp, MEMARB_MODE, MEMARB_MODE_ENABLE, silent);
6722
6723         for (i = 0; i < tp->irq_cnt; i++) {
6724                 struct tg3_napi *tnapi = &tp->napi[i];
6725                 if (tnapi->hw_status)
6726                         memset(tnapi->hw_status, 0, TG3_HW_STATUS_SIZE);
6727         }
6728         if (tp->hw_stats)
6729                 memset(tp->hw_stats, 0, sizeof(struct tg3_hw_stats));
6730
6731         return err;
6732 }
6733
6734 static void tg3_ape_send_event(struct tg3 *tp, u32 event)
6735 {
6736         int i;
6737         u32 apedata;
6738
6739         /* NCSI does not support APE events */
6740         if (tp->tg3_flags3 & TG3_FLG3_APE_HAS_NCSI)
6741                 return;
6742
6743         apedata = tg3_ape_read32(tp, TG3_APE_SEG_SIG);
6744         if (apedata != APE_SEG_SIG_MAGIC)
6745                 return;
6746
6747         apedata = tg3_ape_read32(tp, TG3_APE_FW_STATUS);
6748         if (!(apedata & APE_FW_STATUS_READY))
6749                 return;
6750
6751         /* Wait for up to 1 millisecond for APE to service previous event. */
6752         for (i = 0; i < 10; i++) {
6753                 if (tg3_ape_lock(tp, TG3_APE_LOCK_MEM))
6754                         return;
6755
6756                 apedata = tg3_ape_read32(tp, TG3_APE_EVENT_STATUS);
6757
6758                 if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING))
6759                         tg3_ape_write32(tp, TG3_APE_EVENT_STATUS,
6760                                         event | APE_EVENT_STATUS_EVENT_PENDING);
6761
6762                 tg3_ape_unlock(tp, TG3_APE_LOCK_MEM);
6763
6764                 if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING))
6765                         break;
6766
6767                 udelay(100);
6768         }
6769
6770         if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING))
6771                 tg3_ape_write32(tp, TG3_APE_EVENT, APE_EVENT_1);
6772 }
6773
6774 static void tg3_ape_driver_state_change(struct tg3 *tp, int kind)
6775 {
6776         u32 event;
6777         u32 apedata;
6778
6779         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE))
6780                 return;
6781
6782         switch (kind) {
6783         case RESET_KIND_INIT:
6784                 tg3_ape_write32(tp, TG3_APE_HOST_SEG_SIG,
6785                                 APE_HOST_SEG_SIG_MAGIC);
6786                 tg3_ape_write32(tp, TG3_APE_HOST_SEG_LEN,
6787                                 APE_HOST_SEG_LEN_MAGIC);
6788                 apedata = tg3_ape_read32(tp, TG3_APE_HOST_INIT_COUNT);
6789                 tg3_ape_write32(tp, TG3_APE_HOST_INIT_COUNT, ++apedata);
6790                 tg3_ape_write32(tp, TG3_APE_HOST_DRIVER_ID,
6791                         APE_HOST_DRIVER_ID_MAGIC(TG3_MAJ_NUM, TG3_MIN_NUM));
6792                 tg3_ape_write32(tp, TG3_APE_HOST_BEHAVIOR,
6793                                 APE_HOST_BEHAV_NO_PHYLOCK);
6794                 tg3_ape_write32(tp, TG3_APE_HOST_DRVR_STATE,
6795                                     TG3_APE_HOST_DRVR_STATE_START);
6796
6797                 event = APE_EVENT_STATUS_STATE_START;
6798                 break;
6799         case RESET_KIND_SHUTDOWN:
6800                 /* With the interface we are currently using,
6801                  * APE does not track driver state.  Wiping
6802                  * out the HOST SEGMENT SIGNATURE forces
6803                  * the APE to assume OS absent status.
6804                  */
6805                 tg3_ape_write32(tp, TG3_APE_HOST_SEG_SIG, 0x0);
6806
6807                 if (device_may_wakeup(&tp->pdev->dev) &&
6808                     (tp->tg3_flags & TG3_FLAG_WOL_ENABLE)) {
6809                         tg3_ape_write32(tp, TG3_APE_HOST_WOL_SPEED,
6810                                             TG3_APE_HOST_WOL_SPEED_AUTO);
6811                         apedata = TG3_APE_HOST_DRVR_STATE_WOL;
6812                 } else
6813                         apedata = TG3_APE_HOST_DRVR_STATE_UNLOAD;
6814
6815                 tg3_ape_write32(tp, TG3_APE_HOST_DRVR_STATE, apedata);
6816
6817                 event = APE_EVENT_STATUS_STATE_UNLOAD;
6818                 break;
6819         case RESET_KIND_SUSPEND:
6820                 event = APE_EVENT_STATUS_STATE_SUSPEND;
6821                 break;
6822         default:
6823                 return;
6824         }
6825
6826         event |= APE_EVENT_STATUS_DRIVER_EVNT | APE_EVENT_STATUS_STATE_CHNGE;
6827
6828         tg3_ape_send_event(tp, event);
6829 }
6830
6831 /* tp->lock is held. */
6832 static void tg3_write_sig_pre_reset(struct tg3 *tp, int kind)
6833 {
6834         tg3_write_mem(tp, NIC_SRAM_FIRMWARE_MBOX,
6835                       NIC_SRAM_FIRMWARE_MBOX_MAGIC1);
6836
6837         if (tp->tg3_flags2 & TG3_FLG2_ASF_NEW_HANDSHAKE) {
6838                 switch (kind) {
6839                 case RESET_KIND_INIT:
6840                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6841                                       DRV_STATE_START);
6842                         break;
6843
6844                 case RESET_KIND_SHUTDOWN:
6845                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6846                                       DRV_STATE_UNLOAD);
6847                         break;
6848
6849                 case RESET_KIND_SUSPEND:
6850                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6851                                       DRV_STATE_SUSPEND);
6852                         break;
6853
6854                 default:
6855                         break;
6856                 }
6857         }
6858
6859         if (kind == RESET_KIND_INIT ||
6860             kind == RESET_KIND_SUSPEND)
6861                 tg3_ape_driver_state_change(tp, kind);
6862 }
6863
6864 /* tp->lock is held. */
6865 static void tg3_write_sig_post_reset(struct tg3 *tp, int kind)
6866 {
6867         if (tp->tg3_flags2 & TG3_FLG2_ASF_NEW_HANDSHAKE) {
6868                 switch (kind) {
6869                 case RESET_KIND_INIT:
6870                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6871                                       DRV_STATE_START_DONE);
6872                         break;
6873
6874                 case RESET_KIND_SHUTDOWN:
6875                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6876                                       DRV_STATE_UNLOAD_DONE);
6877                         break;
6878
6879                 default:
6880                         break;
6881                 }
6882         }
6883
6884         if (kind == RESET_KIND_SHUTDOWN)
6885                 tg3_ape_driver_state_change(tp, kind);
6886 }
6887
6888 /* tp->lock is held. */
6889 static void tg3_write_sig_legacy(struct tg3 *tp, int kind)
6890 {
6891         if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) {
6892                 switch (kind) {
6893                 case RESET_KIND_INIT:
6894                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6895                                       DRV_STATE_START);
6896                         break;
6897
6898                 case RESET_KIND_SHUTDOWN:
6899                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6900                                       DRV_STATE_UNLOAD);
6901                         break;
6902
6903                 case RESET_KIND_SUSPEND:
6904                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6905                                       DRV_STATE_SUSPEND);
6906                         break;
6907
6908                 default:
6909                         break;
6910                 }
6911         }
6912 }
6913
6914 static int tg3_poll_fw(struct tg3 *tp)
6915 {
6916         int i;
6917         u32 val;
6918
6919         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
6920                 /* Wait up to 20ms for init done. */
6921                 for (i = 0; i < 200; i++) {
6922                         if (tr32(VCPU_STATUS) & VCPU_STATUS_INIT_DONE)
6923                                 return 0;
6924                         udelay(100);
6925                 }
6926                 return -ENODEV;
6927         }
6928
6929         /* Wait for firmware initialization to complete. */
6930         for (i = 0; i < 100000; i++) {
6931                 tg3_read_mem(tp, NIC_SRAM_FIRMWARE_MBOX, &val);
6932                 if (val == ~NIC_SRAM_FIRMWARE_MBOX_MAGIC1)
6933                         break;
6934                 udelay(10);
6935         }
6936
6937         /* Chip might not be fitted with firmware.  Some Sun onboard
6938          * parts are configured like that.  So don't signal the timeout
6939          * of the above loop as an error, but do report the lack of
6940          * running firmware once.
6941          */
6942         if (i >= 100000 &&
6943             !(tp->tg3_flags2 & TG3_FLG2_NO_FWARE_REPORTED)) {
6944                 tp->tg3_flags2 |= TG3_FLG2_NO_FWARE_REPORTED;
6945
6946                 netdev_info(tp->dev, "No firmware running\n");
6947         }
6948
6949         if (tp->pci_chip_rev_id == CHIPREV_ID_57765_A0) {
6950                 /* The 57765 A0 needs a little more
6951                  * time to do some important work.
6952                  */
6953                 mdelay(10);
6954         }
6955
6956         return 0;
6957 }
6958
6959 /* Save PCI command register before chip reset */
6960 static void tg3_save_pci_state(struct tg3 *tp)
6961 {
6962         pci_read_config_word(tp->pdev, PCI_COMMAND, &tp->pci_cmd);
6963 }
6964
6965 /* Restore PCI state after chip reset */
6966 static void tg3_restore_pci_state(struct tg3 *tp)
6967 {
6968         u32 val;
6969
6970         /* Re-enable indirect register accesses. */
6971         pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
6972                                tp->misc_host_ctrl);
6973
6974         /* Set MAX PCI retry to zero. */
6975         val = (PCISTATE_ROM_ENABLE | PCISTATE_ROM_RETRY_ENABLE);
6976         if (tp->pci_chip_rev_id == CHIPREV_ID_5704_A0 &&
6977             (tp->tg3_flags & TG3_FLAG_PCIX_MODE))
6978                 val |= PCISTATE_RETRY_SAME_DMA;
6979         /* Allow reads and writes to the APE register and memory space. */
6980         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
6981                 val |= PCISTATE_ALLOW_APE_CTLSPC_WR |
6982                        PCISTATE_ALLOW_APE_SHMEM_WR |
6983                        PCISTATE_ALLOW_APE_PSPACE_WR;
6984         pci_write_config_dword(tp->pdev, TG3PCI_PCISTATE, val);
6985
6986         pci_write_config_word(tp->pdev, PCI_COMMAND, tp->pci_cmd);
6987
6988         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785) {
6989                 if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS)
6990                         pcie_set_readrq(tp->pdev, tp->pcie_readrq);
6991                 else {
6992                         pci_write_config_byte(tp->pdev, PCI_CACHE_LINE_SIZE,
6993                                               tp->pci_cacheline_sz);
6994                         pci_write_config_byte(tp->pdev, PCI_LATENCY_TIMER,
6995                                               tp->pci_lat_timer);
6996                 }
6997         }
6998
6999         /* Make sure PCI-X relaxed ordering bit is clear. */
7000         if (tp->tg3_flags & TG3_FLAG_PCIX_MODE) {
7001                 u16 pcix_cmd;
7002
7003                 pci_read_config_word(tp->pdev, tp->pcix_cap + PCI_X_CMD,
7004                                      &pcix_cmd);
7005                 pcix_cmd &= ~PCI_X_CMD_ERO;
7006                 pci_write_config_word(tp->pdev, tp->pcix_cap + PCI_X_CMD,
7007                                       pcix_cmd);
7008         }
7009
7010         if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) {
7011
7012                 /* Chip reset on 5780 will reset MSI enable bit,
7013                  * so need to restore it.
7014                  */
7015                 if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
7016                         u16 ctrl;
7017
7018                         pci_read_config_word(tp->pdev,
7019                                              tp->msi_cap + PCI_MSI_FLAGS,
7020                                              &ctrl);
7021                         pci_write_config_word(tp->pdev,
7022                                               tp->msi_cap + PCI_MSI_FLAGS,
7023                                               ctrl | PCI_MSI_FLAGS_ENABLE);
7024                         val = tr32(MSGINT_MODE);
7025                         tw32(MSGINT_MODE, val | MSGINT_MODE_ENABLE);
7026                 }
7027         }
7028 }
7029
7030 static void tg3_stop_fw(struct tg3 *);
7031
7032 /* tp->lock is held. */
7033 static int tg3_chip_reset(struct tg3 *tp)
7034 {
7035         u32 val;
7036         void (*write_op)(struct tg3 *, u32, u32);
7037         int i, err;
7038
7039         tg3_nvram_lock(tp);
7040
7041         tg3_ape_lock(tp, TG3_APE_LOCK_GRC);
7042
7043         /* No matching tg3_nvram_unlock() after this because
7044          * chip reset below will undo the nvram lock.
7045          */
7046         tp->nvram_lock_cnt = 0;
7047
7048         /* GRC_MISC_CFG core clock reset will clear the memory
7049          * enable bit in PCI register 4 and the MSI enable bit
7050          * on some chips, so we save relevant registers here.
7051          */
7052         tg3_save_pci_state(tp);
7053
7054         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752 ||
7055             (tp->tg3_flags3 & TG3_FLG3_5755_PLUS))
7056                 tw32(GRC_FASTBOOT_PC, 0);
7057
7058         /*
7059          * We must avoid the readl() that normally takes place.
7060          * It locks machines, causes machine checks, and other
7061          * fun things.  So, temporarily disable the 5701
7062          * hardware workaround, while we do the reset.
7063          */
7064         write_op = tp->write32;
7065         if (write_op == tg3_write_flush_reg32)
7066                 tp->write32 = tg3_write32;
7067
7068         /* Prevent the irq handler from reading or writing PCI registers
7069          * during chip reset when the memory enable bit in the PCI command
7070          * register may be cleared.  The chip does not generate interrupt
7071          * at this time, but the irq handler may still be called due to irq
7072          * sharing or irqpoll.
7073          */
7074         tp->tg3_flags |= TG3_FLAG_CHIP_RESETTING;
7075         for (i = 0; i < tp->irq_cnt; i++) {
7076                 struct tg3_napi *tnapi = &tp->napi[i];
7077                 if (tnapi->hw_status) {
7078                         tnapi->hw_status->status = 0;
7079                         tnapi->hw_status->status_tag = 0;
7080                 }
7081                 tnapi->last_tag = 0;
7082                 tnapi->last_irq_tag = 0;
7083         }
7084         smp_mb();
7085
7086         for (i = 0; i < tp->irq_cnt; i++)
7087                 synchronize_irq(tp->napi[i].irq_vec);
7088
7089         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780) {
7090                 val = tr32(TG3_PCIE_LNKCTL) & ~TG3_PCIE_LNKCTL_L1_PLL_PD_EN;
7091                 tw32(TG3_PCIE_LNKCTL, val | TG3_PCIE_LNKCTL_L1_PLL_PD_DIS);
7092         }
7093
7094         /* do the reset */
7095         val = GRC_MISC_CFG_CORECLK_RESET;
7096
7097         if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
7098                 /* Force PCIe 1.0a mode */
7099                 if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785 &&
7100                     !(tp->tg3_flags3 & TG3_FLG3_5717_PLUS) &&
7101                     tr32(TG3_PCIE_PHY_TSTCTL) ==
7102                     (TG3_PCIE_PHY_TSTCTL_PCIE10 | TG3_PCIE_PHY_TSTCTL_PSCRAM))
7103                         tw32(TG3_PCIE_PHY_TSTCTL, TG3_PCIE_PHY_TSTCTL_PSCRAM);
7104
7105                 if (tp->pci_chip_rev_id != CHIPREV_ID_5750_A0) {
7106                         tw32(GRC_MISC_CFG, (1 << 29));
7107                         val |= (1 << 29);
7108                 }
7109         }
7110
7111         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
7112                 tw32(VCPU_STATUS, tr32(VCPU_STATUS) | VCPU_STATUS_DRV_RESET);
7113                 tw32(GRC_VCPU_EXT_CTRL,
7114                      tr32(GRC_VCPU_EXT_CTRL) & ~GRC_VCPU_EXT_CTRL_HALT_CPU);
7115         }
7116
7117         /* Manage gphy power for all CPMU absent PCIe devices. */
7118         if ((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
7119             !(tp->tg3_flags & TG3_FLAG_CPMU_PRESENT))
7120                 val |= GRC_MISC_CFG_KEEP_GPHY_POWER;
7121
7122         tw32(GRC_MISC_CFG, val);
7123
7124         /* restore 5701 hardware bug workaround write method */
7125         tp->write32 = write_op;
7126
7127         /* Unfortunately, we have to delay before the PCI read back.
7128          * Some 575X chips even will not respond to a PCI cfg access
7129          * when the reset command is given to the chip.
7130          *
7131          * How do these hardware designers expect things to work
7132          * properly if the PCI write is posted for a long period
7133          * of time?  It is always necessary to have some method by
7134          * which a register read back can occur to push the write
7135          * out which does the reset.
7136          *
7137          * For most tg3 variants the trick below was working.
7138          * Ho hum...
7139          */
7140         udelay(120);
7141
7142         /* Flush PCI posted writes.  The normal MMIO registers
7143          * are inaccessible at this time so this is the only
7144          * way to make this reliably (actually, this is no longer
7145          * the case, see above).  I tried to use indirect
7146          * register read/write but this upset some 5701 variants.
7147          */
7148         pci_read_config_dword(tp->pdev, PCI_COMMAND, &val);
7149
7150         udelay(120);
7151
7152         if ((tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) && tp->pcie_cap) {
7153                 u16 val16;
7154
7155                 if (tp->pci_chip_rev_id == CHIPREV_ID_5750_A0) {
7156                         int i;
7157                         u32 cfg_val;
7158
7159                         /* Wait for link training to complete.  */
7160                         for (i = 0; i < 5000; i++)
7161                                 udelay(100);
7162
7163                         pci_read_config_dword(tp->pdev, 0xc4, &cfg_val);
7164                         pci_write_config_dword(tp->pdev, 0xc4,
7165                                                cfg_val | (1 << 15));
7166                 }
7167
7168                 /* Clear the "no snoop" and "relaxed ordering" bits. */
7169                 pci_read_config_word(tp->pdev,
7170                                      tp->pcie_cap + PCI_EXP_DEVCTL,
7171                                      &val16);
7172                 val16 &= ~(PCI_EXP_DEVCTL_RELAX_EN |
7173                            PCI_EXP_DEVCTL_NOSNOOP_EN);
7174                 /*
7175                  * Older PCIe devices only support the 128 byte
7176                  * MPS setting.  Enforce the restriction.
7177                  */
7178                 if (!(tp->tg3_flags & TG3_FLAG_CPMU_PRESENT))
7179                         val16 &= ~PCI_EXP_DEVCTL_PAYLOAD;
7180                 pci_write_config_word(tp->pdev,
7181                                       tp->pcie_cap + PCI_EXP_DEVCTL,
7182                                       val16);
7183
7184                 pcie_set_readrq(tp->pdev, tp->pcie_readrq);
7185
7186                 /* Clear error status */
7187                 pci_write_config_word(tp->pdev,
7188                                       tp->pcie_cap + PCI_EXP_DEVSTA,
7189                                       PCI_EXP_DEVSTA_CED |
7190                                       PCI_EXP_DEVSTA_NFED |
7191                                       PCI_EXP_DEVSTA_FED |
7192                                       PCI_EXP_DEVSTA_URD);
7193         }
7194
7195         tg3_restore_pci_state(tp);
7196
7197         tp->tg3_flags &= ~TG3_FLAG_CHIP_RESETTING;
7198
7199         val = 0;
7200         if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)
7201                 val = tr32(MEMARB_MODE);
7202         tw32(MEMARB_MODE, val | MEMARB_MODE_ENABLE);
7203
7204         if (tp->pci_chip_rev_id == CHIPREV_ID_5750_A3) {
7205                 tg3_stop_fw(tp);
7206                 tw32(0x5000, 0x400);
7207         }
7208
7209         tw32(GRC_MODE, tp->grc_mode);
7210
7211         if (tp->pci_chip_rev_id == CHIPREV_ID_5705_A0) {
7212                 val = tr32(0xc4);
7213
7214                 tw32(0xc4, val | (1 << 15));
7215         }
7216
7217         if ((tp->nic_sram_data_cfg & NIC_SRAM_DATA_CFG_MINI_PCI) != 0 &&
7218             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
7219                 tp->pci_clock_ctrl |= CLOCK_CTRL_CLKRUN_OENABLE;
7220                 if (tp->pci_chip_rev_id == CHIPREV_ID_5705_A0)
7221                         tp->pci_clock_ctrl |= CLOCK_CTRL_FORCE_CLKRUN;
7222                 tw32(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl);
7223         }
7224
7225         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
7226                 tp->mac_mode = MAC_MODE_APE_TX_EN |
7227                                MAC_MODE_APE_RX_EN |
7228                                MAC_MODE_TDE_ENABLE;
7229
7230         if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES) {
7231                 tp->mac_mode |= MAC_MODE_PORT_MODE_TBI;
7232                 val = tp->mac_mode;
7233         } else if (tp->phy_flags & TG3_PHYFLG_MII_SERDES) {
7234                 tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
7235                 val = tp->mac_mode;
7236         } else
7237                 val = 0;
7238
7239         tw32_f(MAC_MODE, val);
7240         udelay(40);
7241
7242         tg3_ape_unlock(tp, TG3_APE_LOCK_GRC);
7243
7244         err = tg3_poll_fw(tp);
7245         if (err)
7246                 return err;
7247
7248         tg3_mdio_start(tp);
7249
7250         if ((tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) &&
7251             tp->pci_chip_rev_id != CHIPREV_ID_5750_A0 &&
7252             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785 &&
7253             !(tp->tg3_flags3 & TG3_FLG3_5717_PLUS)) {
7254                 val = tr32(0x7c00);
7255
7256                 tw32(0x7c00, val | (1 << 25));
7257         }
7258
7259         /* Reprobe ASF enable state.  */
7260         tp->tg3_flags &= ~TG3_FLAG_ENABLE_ASF;
7261         tp->tg3_flags2 &= ~TG3_FLG2_ASF_NEW_HANDSHAKE;
7262         tg3_read_mem(tp, NIC_SRAM_DATA_SIG, &val);
7263         if (val == NIC_SRAM_DATA_SIG_MAGIC) {
7264                 u32 nic_cfg;
7265
7266                 tg3_read_mem(tp, NIC_SRAM_DATA_CFG, &nic_cfg);
7267                 if (nic_cfg & NIC_SRAM_DATA_CFG_ASF_ENABLE) {
7268                         tp->tg3_flags |= TG3_FLAG_ENABLE_ASF;
7269                         tp->last_event_jiffies = jiffies;
7270                         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS)
7271                                 tp->tg3_flags2 |= TG3_FLG2_ASF_NEW_HANDSHAKE;
7272                 }
7273         }
7274
7275         return 0;
7276 }
7277
7278 /* tp->lock is held. */
7279 static void tg3_stop_fw(struct tg3 *tp)
7280 {
7281         if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) &&
7282            !(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)) {
7283                 /* Wait for RX cpu to ACK the previous event. */
7284                 tg3_wait_for_event_ack(tp);
7285
7286                 tg3_write_mem(tp, NIC_SRAM_FW_CMD_MBOX, FWCMD_NICDRV_PAUSE_FW);
7287
7288                 tg3_generate_fw_event(tp);
7289
7290                 /* Wait for RX cpu to ACK this event. */
7291                 tg3_wait_for_event_ack(tp);
7292         }
7293 }
7294
7295 /* tp->lock is held. */
7296 static int tg3_halt(struct tg3 *tp, int kind, int silent)
7297 {
7298         int err;
7299
7300         tg3_stop_fw(tp);
7301
7302         tg3_write_sig_pre_reset(tp, kind);
7303
7304         tg3_abort_hw(tp, silent);
7305         err = tg3_chip_reset(tp);
7306
7307         __tg3_set_mac_addr(tp, 0);
7308
7309         tg3_write_sig_legacy(tp, kind);
7310         tg3_write_sig_post_reset(tp, kind);
7311
7312         if (err)
7313                 return err;
7314
7315         return 0;
7316 }
7317
7318 #define RX_CPU_SCRATCH_BASE     0x30000
7319 #define RX_CPU_SCRATCH_SIZE     0x04000
7320 #define TX_CPU_SCRATCH_BASE     0x34000
7321 #define TX_CPU_SCRATCH_SIZE     0x04000
7322
7323 /* tp->lock is held. */
7324 static int tg3_halt_cpu(struct tg3 *tp, u32 offset)
7325 {
7326         int i;
7327
7328         BUG_ON(offset == TX_CPU_BASE &&
7329             (tp->tg3_flags2 & TG3_FLG2_5705_PLUS));
7330
7331         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
7332                 u32 val = tr32(GRC_VCPU_EXT_CTRL);
7333
7334                 tw32(GRC_VCPU_EXT_CTRL, val | GRC_VCPU_EXT_CTRL_HALT_CPU);
7335                 return 0;
7336         }
7337         if (offset == RX_CPU_BASE) {
7338                 for (i = 0; i < 10000; i++) {
7339                         tw32(offset + CPU_STATE, 0xffffffff);
7340                         tw32(offset + CPU_MODE,  CPU_MODE_HALT);
7341                         if (tr32(offset + CPU_MODE) & CPU_MODE_HALT)
7342                                 break;
7343                 }
7344
7345                 tw32(offset + CPU_STATE, 0xffffffff);
7346                 tw32_f(offset + CPU_MODE,  CPU_MODE_HALT);
7347                 udelay(10);
7348         } else {
7349                 for (i = 0; i < 10000; i++) {
7350                         tw32(offset + CPU_STATE, 0xffffffff);
7351                         tw32(offset + CPU_MODE,  CPU_MODE_HALT);
7352                         if (tr32(offset + CPU_MODE) & CPU_MODE_HALT)
7353                                 break;
7354                 }
7355         }
7356
7357         if (i >= 10000) {
7358                 netdev_err(tp->dev, "%s timed out, %s CPU\n",
7359                            __func__, offset == RX_CPU_BASE ? "RX" : "TX");
7360                 return -ENODEV;
7361         }
7362
7363         /* Clear firmware's nvram arbitration. */
7364         if (tp->tg3_flags & TG3_FLAG_NVRAM)
7365                 tw32(NVRAM_SWARB, SWARB_REQ_CLR0);
7366         return 0;
7367 }
7368
7369 struct fw_info {
7370         unsigned int fw_base;
7371         unsigned int fw_len;
7372         const __be32 *fw_data;
7373 };
7374
7375 /* tp->lock is held. */
7376 static int tg3_load_firmware_cpu(struct tg3 *tp, u32 cpu_base, u32 cpu_scratch_base,
7377                                  int cpu_scratch_size, struct fw_info *info)
7378 {
7379         int err, lock_err, i;
7380         void (*write_op)(struct tg3 *, u32, u32);
7381
7382         if (cpu_base == TX_CPU_BASE &&
7383             (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
7384                 netdev_err(tp->dev,
7385                            "%s: Trying to load TX cpu firmware which is 5705\n",
7386                            __func__);
7387                 return -EINVAL;
7388         }
7389
7390         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
7391                 write_op = tg3_write_mem;
7392         else
7393                 write_op = tg3_write_indirect_reg32;
7394
7395         /* It is possible that bootcode is still loading at this point.
7396          * Get the nvram lock first before halting the cpu.
7397          */
7398         lock_err = tg3_nvram_lock(tp);
7399         err = tg3_halt_cpu(tp, cpu_base);
7400         if (!lock_err)
7401                 tg3_nvram_unlock(tp);
7402         if (err)
7403                 goto out;
7404
7405         for (i = 0; i < cpu_scratch_size; i += sizeof(u32))
7406                 write_op(tp, cpu_scratch_base + i, 0);
7407         tw32(cpu_base + CPU_STATE, 0xffffffff);
7408         tw32(cpu_base + CPU_MODE, tr32(cpu_base+CPU_MODE)|CPU_MODE_HALT);
7409         for (i = 0; i < (info->fw_len / sizeof(u32)); i++)
7410                 write_op(tp, (cpu_scratch_base +
7411                               (info->fw_base & 0xffff) +
7412                               (i * sizeof(u32))),
7413                               be32_to_cpu(info->fw_data[i]));
7414
7415         err = 0;
7416
7417 out:
7418         return err;
7419 }
7420
7421 /* tp->lock is held. */
7422 static int tg3_load_5701_a0_firmware_fix(struct tg3 *tp)
7423 {
7424         struct fw_info info;
7425         const __be32 *fw_data;
7426         int err, i;
7427
7428         fw_data = (void *)tp->fw->data;
7429
7430         /* Firmware blob starts with version numbers, followed by
7431            start address and length. We are setting complete length.
7432            length = end_address_of_bss - start_address_of_text.
7433            Remainder is the blob to be loaded contiguously
7434            from start address. */
7435
7436         info.fw_base = be32_to_cpu(fw_data[1]);
7437         info.fw_len = tp->fw->size - 12;
7438         info.fw_data = &fw_data[3];
7439
7440         err = tg3_load_firmware_cpu(tp, RX_CPU_BASE,
7441                                     RX_CPU_SCRATCH_BASE, RX_CPU_SCRATCH_SIZE,
7442                                     &info);
7443         if (err)
7444                 return err;
7445
7446         err = tg3_load_firmware_cpu(tp, TX_CPU_BASE,
7447                                     TX_CPU_SCRATCH_BASE, TX_CPU_SCRATCH_SIZE,
7448                                     &info);
7449         if (err)
7450                 return err;
7451
7452         /* Now startup only the RX cpu. */
7453         tw32(RX_CPU_BASE + CPU_STATE, 0xffffffff);
7454         tw32_f(RX_CPU_BASE + CPU_PC, info.fw_base);
7455
7456         for (i = 0; i < 5; i++) {
7457                 if (tr32(RX_CPU_BASE + CPU_PC) == info.fw_base)
7458                         break;
7459                 tw32(RX_CPU_BASE + CPU_STATE, 0xffffffff);
7460                 tw32(RX_CPU_BASE + CPU_MODE,  CPU_MODE_HALT);
7461                 tw32_f(RX_CPU_BASE + CPU_PC, info.fw_base);
7462                 udelay(1000);
7463         }
7464         if (i >= 5) {
7465                 netdev_err(tp->dev, "%s fails to set RX CPU PC, is %08x "
7466                            "should be %08x\n", __func__,
7467                            tr32(RX_CPU_BASE + CPU_PC), info.fw_base);
7468                 return -ENODEV;
7469         }
7470         tw32(RX_CPU_BASE + CPU_STATE, 0xffffffff);
7471         tw32_f(RX_CPU_BASE + CPU_MODE,  0x00000000);
7472
7473         return 0;
7474 }
7475
7476 /* 5705 needs a special version of the TSO firmware.  */
7477
7478 /* tp->lock is held. */
7479 static int tg3_load_tso_firmware(struct tg3 *tp)
7480 {
7481         struct fw_info info;
7482         const __be32 *fw_data;
7483         unsigned long cpu_base, cpu_scratch_base, cpu_scratch_size;
7484         int err, i;
7485
7486         if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
7487                 return 0;
7488
7489         fw_data = (void *)tp->fw->data;
7490
7491         /* Firmware blob starts with version numbers, followed by
7492            start address and length. We are setting complete length.
7493            length = end_address_of_bss - start_address_of_text.
7494            Remainder is the blob to be loaded contiguously
7495            from start address. */
7496
7497         info.fw_base = be32_to_cpu(fw_data[1]);
7498         cpu_scratch_size = tp->fw_len;
7499         info.fw_len = tp->fw->size - 12;
7500         info.fw_data = &fw_data[3];
7501
7502         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
7503                 cpu_base = RX_CPU_BASE;
7504                 cpu_scratch_base = NIC_SRAM_MBUF_POOL_BASE5705;
7505         } else {
7506                 cpu_base = TX_CPU_BASE;
7507                 cpu_scratch_base = TX_CPU_SCRATCH_BASE;
7508                 cpu_scratch_size = TX_CPU_SCRATCH_SIZE;
7509         }
7510
7511         err = tg3_load_firmware_cpu(tp, cpu_base,
7512                                     cpu_scratch_base, cpu_scratch_size,
7513                                     &info);
7514         if (err)
7515                 return err;
7516
7517         /* Now startup the cpu. */
7518         tw32(cpu_base + CPU_STATE, 0xffffffff);
7519         tw32_f(cpu_base + CPU_PC, info.fw_base);
7520
7521         for (i = 0; i < 5; i++) {
7522                 if (tr32(cpu_base + CPU_PC) == info.fw_base)
7523                         break;
7524                 tw32(cpu_base + CPU_STATE, 0xffffffff);
7525                 tw32(cpu_base + CPU_MODE,  CPU_MODE_HALT);
7526                 tw32_f(cpu_base + CPU_PC, info.fw_base);
7527                 udelay(1000);
7528         }
7529         if (i >= 5) {
7530                 netdev_err(tp->dev,
7531                            "%s fails to set CPU PC, is %08x should be %08x\n",
7532                            __func__, tr32(cpu_base + CPU_PC), info.fw_base);
7533                 return -ENODEV;
7534         }
7535         tw32(cpu_base + CPU_STATE, 0xffffffff);
7536         tw32_f(cpu_base + CPU_MODE,  0x00000000);
7537         return 0;
7538 }
7539
7540
7541 static int tg3_set_mac_addr(struct net_device *dev, void *p)
7542 {
7543         struct tg3 *tp = netdev_priv(dev);
7544         struct sockaddr *addr = p;
7545         int err = 0, skip_mac_1 = 0;
7546
7547         if (!is_valid_ether_addr(addr->sa_data))
7548                 return -EINVAL;
7549
7550         memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
7551
7552         if (!netif_running(dev))
7553                 return 0;
7554
7555         if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) {
7556                 u32 addr0_high, addr0_low, addr1_high, addr1_low;
7557
7558                 addr0_high = tr32(MAC_ADDR_0_HIGH);
7559                 addr0_low = tr32(MAC_ADDR_0_LOW);
7560                 addr1_high = tr32(MAC_ADDR_1_HIGH);
7561                 addr1_low = tr32(MAC_ADDR_1_LOW);
7562
7563                 /* Skip MAC addr 1 if ASF is using it. */
7564                 if ((addr0_high != addr1_high || addr0_low != addr1_low) &&
7565                     !(addr1_high == 0 && addr1_low == 0))
7566                         skip_mac_1 = 1;
7567         }
7568         spin_lock_bh(&tp->lock);
7569         __tg3_set_mac_addr(tp, skip_mac_1);
7570         spin_unlock_bh(&tp->lock);
7571
7572         return err;
7573 }
7574
7575 /* tp->lock is held. */
7576 static void tg3_set_bdinfo(struct tg3 *tp, u32 bdinfo_addr,
7577                            dma_addr_t mapping, u32 maxlen_flags,
7578                            u32 nic_addr)
7579 {
7580         tg3_write_mem(tp,
7581                       (bdinfo_addr + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_HIGH),
7582                       ((u64) mapping >> 32));
7583         tg3_write_mem(tp,
7584                       (bdinfo_addr + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_LOW),
7585                       ((u64) mapping & 0xffffffff));
7586         tg3_write_mem(tp,
7587                       (bdinfo_addr + TG3_BDINFO_MAXLEN_FLAGS),
7588                        maxlen_flags);
7589
7590         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
7591                 tg3_write_mem(tp,
7592                               (bdinfo_addr + TG3_BDINFO_NIC_ADDR),
7593                               nic_addr);
7594 }
7595
7596 static void __tg3_set_rx_mode(struct net_device *);
7597 static void __tg3_set_coalesce(struct tg3 *tp, struct ethtool_coalesce *ec)
7598 {
7599         int i;
7600
7601         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)) {
7602                 tw32(HOSTCC_TXCOL_TICKS, ec->tx_coalesce_usecs);
7603                 tw32(HOSTCC_TXMAX_FRAMES, ec->tx_max_coalesced_frames);
7604                 tw32(HOSTCC_TXCOAL_MAXF_INT, ec->tx_max_coalesced_frames_irq);
7605         } else {
7606                 tw32(HOSTCC_TXCOL_TICKS, 0);
7607                 tw32(HOSTCC_TXMAX_FRAMES, 0);
7608                 tw32(HOSTCC_TXCOAL_MAXF_INT, 0);
7609         }
7610
7611         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS)) {
7612                 tw32(HOSTCC_RXCOL_TICKS, ec->rx_coalesce_usecs);
7613                 tw32(HOSTCC_RXMAX_FRAMES, ec->rx_max_coalesced_frames);
7614                 tw32(HOSTCC_RXCOAL_MAXF_INT, ec->rx_max_coalesced_frames_irq);
7615         } else {
7616                 tw32(HOSTCC_RXCOL_TICKS, 0);
7617                 tw32(HOSTCC_RXMAX_FRAMES, 0);
7618                 tw32(HOSTCC_RXCOAL_MAXF_INT, 0);
7619         }
7620
7621         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
7622                 u32 val = ec->stats_block_coalesce_usecs;
7623
7624                 tw32(HOSTCC_RXCOAL_TICK_INT, ec->rx_coalesce_usecs_irq);
7625                 tw32(HOSTCC_TXCOAL_TICK_INT, ec->tx_coalesce_usecs_irq);
7626
7627                 if (!netif_carrier_ok(tp->dev))
7628                         val = 0;
7629
7630                 tw32(HOSTCC_STAT_COAL_TICKS, val);
7631         }
7632
7633         for (i = 0; i < tp->irq_cnt - 1; i++) {
7634                 u32 reg;
7635
7636                 reg = HOSTCC_RXCOL_TICKS_VEC1 + i * 0x18;
7637                 tw32(reg, ec->rx_coalesce_usecs);
7638                 reg = HOSTCC_RXMAX_FRAMES_VEC1 + i * 0x18;
7639                 tw32(reg, ec->rx_max_coalesced_frames);
7640                 reg = HOSTCC_RXCOAL_MAXF_INT_VEC1 + i * 0x18;
7641                 tw32(reg, ec->rx_max_coalesced_frames_irq);
7642
7643                 if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS) {
7644                         reg = HOSTCC_TXCOL_TICKS_VEC1 + i * 0x18;
7645                         tw32(reg, ec->tx_coalesce_usecs);
7646                         reg = HOSTCC_TXMAX_FRAMES_VEC1 + i * 0x18;
7647                         tw32(reg, ec->tx_max_coalesced_frames);
7648                         reg = HOSTCC_TXCOAL_MAXF_INT_VEC1 + i * 0x18;
7649                         tw32(reg, ec->tx_max_coalesced_frames_irq);
7650                 }
7651         }
7652
7653         for (; i < tp->irq_max - 1; i++) {
7654                 tw32(HOSTCC_RXCOL_TICKS_VEC1 + i * 0x18, 0);
7655                 tw32(HOSTCC_RXMAX_FRAMES_VEC1 + i * 0x18, 0);
7656                 tw32(HOSTCC_RXCOAL_MAXF_INT_VEC1 + i * 0x18, 0);
7657
7658                 if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS) {
7659                         tw32(HOSTCC_TXCOL_TICKS_VEC1 + i * 0x18, 0);
7660                         tw32(HOSTCC_TXMAX_FRAMES_VEC1 + i * 0x18, 0);
7661                         tw32(HOSTCC_TXCOAL_MAXF_INT_VEC1 + i * 0x18, 0);
7662                 }
7663         }
7664 }
7665
7666 /* tp->lock is held. */
7667 static void tg3_rings_reset(struct tg3 *tp)
7668 {
7669         int i;
7670         u32 stblk, txrcb, rxrcb, limit;
7671         struct tg3_napi *tnapi = &tp->napi[0];
7672
7673         /* Disable all transmit rings but the first. */
7674         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
7675                 limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE * 16;
7676         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
7677                  GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719)
7678                 limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE * 4;
7679         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
7680                 limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE * 2;
7681         else
7682                 limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE;
7683
7684         for (txrcb = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE;
7685              txrcb < limit; txrcb += TG3_BDINFO_SIZE)
7686                 tg3_write_mem(tp, txrcb + TG3_BDINFO_MAXLEN_FLAGS,
7687                               BDINFO_FLAGS_DISABLED);
7688
7689
7690         /* Disable all receive return rings but the first. */
7691         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
7692             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719)
7693                 limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE * 17;
7694         else if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
7695                 limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE * 16;
7696         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 ||
7697                  GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
7698                 limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE * 4;
7699         else
7700                 limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE;
7701
7702         for (rxrcb = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE;
7703              rxrcb < limit; rxrcb += TG3_BDINFO_SIZE)
7704                 tg3_write_mem(tp, rxrcb + TG3_BDINFO_MAXLEN_FLAGS,
7705                               BDINFO_FLAGS_DISABLED);
7706
7707         /* Disable interrupts */
7708         tw32_mailbox_f(tp->napi[0].int_mbox, 1);
7709
7710         /* Zero mailbox registers. */
7711         if (tp->tg3_flags & TG3_FLAG_SUPPORT_MSIX) {
7712                 for (i = 1; i < tp->irq_max; i++) {
7713                         tp->napi[i].tx_prod = 0;
7714                         tp->napi[i].tx_cons = 0;
7715                         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
7716                                 tw32_mailbox(tp->napi[i].prodmbox, 0);
7717                         tw32_rx_mbox(tp->napi[i].consmbox, 0);
7718                         tw32_mailbox_f(tp->napi[i].int_mbox, 1);
7719                 }
7720                 if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS))
7721                         tw32_mailbox(tp->napi[0].prodmbox, 0);
7722         } else {
7723                 tp->napi[0].tx_prod = 0;
7724                 tp->napi[0].tx_cons = 0;
7725                 tw32_mailbox(tp->napi[0].prodmbox, 0);
7726                 tw32_rx_mbox(tp->napi[0].consmbox, 0);
7727         }
7728
7729         /* Make sure the NIC-based send BD rings are disabled. */
7730         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
7731                 u32 mbox = MAILBOX_SNDNIC_PROD_IDX_0 + TG3_64BIT_REG_LOW;
7732                 for (i = 0; i < 16; i++)
7733                         tw32_tx_mbox(mbox + i * 8, 0);
7734         }
7735
7736         txrcb = NIC_SRAM_SEND_RCB;
7737         rxrcb = NIC_SRAM_RCV_RET_RCB;
7738
7739         /* Clear status block in ram. */
7740         memset(tnapi->hw_status, 0, TG3_HW_STATUS_SIZE);
7741
7742         /* Set status block DMA address */
7743         tw32(HOSTCC_STATUS_BLK_HOST_ADDR + TG3_64BIT_REG_HIGH,
7744              ((u64) tnapi->status_mapping >> 32));
7745         tw32(HOSTCC_STATUS_BLK_HOST_ADDR + TG3_64BIT_REG_LOW,
7746              ((u64) tnapi->status_mapping & 0xffffffff));
7747
7748         if (tnapi->tx_ring) {
7749                 tg3_set_bdinfo(tp, txrcb, tnapi->tx_desc_mapping,
7750                                (TG3_TX_RING_SIZE <<
7751                                 BDINFO_FLAGS_MAXLEN_SHIFT),
7752                                NIC_SRAM_TX_BUFFER_DESC);
7753                 txrcb += TG3_BDINFO_SIZE;
7754         }
7755
7756         if (tnapi->rx_rcb) {
7757                 tg3_set_bdinfo(tp, rxrcb, tnapi->rx_rcb_mapping,
7758                                (tp->rx_ret_ring_mask + 1) <<
7759                                 BDINFO_FLAGS_MAXLEN_SHIFT, 0);
7760                 rxrcb += TG3_BDINFO_SIZE;
7761         }
7762
7763         stblk = HOSTCC_STATBLCK_RING1;
7764
7765         for (i = 1, tnapi++; i < tp->irq_cnt; i++, tnapi++) {
7766                 u64 mapping = (u64)tnapi->status_mapping;
7767                 tw32(stblk + TG3_64BIT_REG_HIGH, mapping >> 32);
7768                 tw32(stblk + TG3_64BIT_REG_LOW, mapping & 0xffffffff);
7769
7770                 /* Clear status block in ram. */
7771                 memset(tnapi->hw_status, 0, TG3_HW_STATUS_SIZE);
7772
7773                 if (tnapi->tx_ring) {
7774                         tg3_set_bdinfo(tp, txrcb, tnapi->tx_desc_mapping,
7775                                        (TG3_TX_RING_SIZE <<
7776                                         BDINFO_FLAGS_MAXLEN_SHIFT),
7777                                        NIC_SRAM_TX_BUFFER_DESC);
7778                         txrcb += TG3_BDINFO_SIZE;
7779                 }
7780
7781                 tg3_set_bdinfo(tp, rxrcb, tnapi->rx_rcb_mapping,
7782                                ((tp->rx_ret_ring_mask + 1) <<
7783                                 BDINFO_FLAGS_MAXLEN_SHIFT), 0);
7784
7785                 stblk += 8;
7786                 rxrcb += TG3_BDINFO_SIZE;
7787         }
7788 }
7789
7790 /* tp->lock is held. */
7791 static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
7792 {
7793         u32 val, rdmac_mode;
7794         int i, err, limit;
7795         struct tg3_rx_prodring_set *tpr = &tp->napi[0].prodring;
7796
7797         tg3_disable_ints(tp);
7798
7799         tg3_stop_fw(tp);
7800
7801         tg3_write_sig_pre_reset(tp, RESET_KIND_INIT);
7802
7803         if (tp->tg3_flags & TG3_FLAG_INIT_COMPLETE)
7804                 tg3_abort_hw(tp, 1);
7805
7806         /* Enable MAC control of LPI */
7807         if (tp->phy_flags & TG3_PHYFLG_EEE_CAP) {
7808                 tw32_f(TG3_CPMU_EEE_LNKIDL_CTRL,
7809                        TG3_CPMU_EEE_LNKIDL_PCIE_NL0 |
7810                        TG3_CPMU_EEE_LNKIDL_UART_IDL);
7811
7812                 tw32_f(TG3_CPMU_EEE_CTRL,
7813                        TG3_CPMU_EEE_CTRL_EXIT_20_1_US);
7814
7815                 val = TG3_CPMU_EEEMD_ERLY_L1_XIT_DET |
7816                       TG3_CPMU_EEEMD_LPI_IN_TX |
7817                       TG3_CPMU_EEEMD_LPI_IN_RX |
7818                       TG3_CPMU_EEEMD_EEE_ENABLE;
7819
7820                 if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5717)
7821                         val |= TG3_CPMU_EEEMD_SND_IDX_DET_EN;
7822
7823                 if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
7824                         val |= TG3_CPMU_EEEMD_APE_TX_DET_EN;
7825
7826                 tw32_f(TG3_CPMU_EEE_MODE, val);
7827
7828                 tw32_f(TG3_CPMU_EEE_DBTMR1,
7829                        TG3_CPMU_DBTMR1_PCIEXIT_2047US |
7830                        TG3_CPMU_DBTMR1_LNKIDLE_2047US);
7831
7832                 tw32_f(TG3_CPMU_EEE_DBTMR2,
7833                        TG3_CPMU_DBTMR2_APE_TX_2047US |
7834                        TG3_CPMU_DBTMR2_TXIDXEQ_2047US);
7835         }
7836
7837         if (reset_phy)
7838                 tg3_phy_reset(tp);
7839
7840         err = tg3_chip_reset(tp);
7841         if (err)
7842                 return err;
7843
7844         tg3_write_sig_legacy(tp, RESET_KIND_INIT);
7845
7846         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX) {
7847                 val = tr32(TG3_CPMU_CTRL);
7848                 val &= ~(CPMU_CTRL_LINK_AWARE_MODE | CPMU_CTRL_LINK_IDLE_MODE);
7849                 tw32(TG3_CPMU_CTRL, val);
7850
7851                 val = tr32(TG3_CPMU_LSPD_10MB_CLK);
7852                 val &= ~CPMU_LSPD_10MB_MACCLK_MASK;
7853                 val |= CPMU_LSPD_10MB_MACCLK_6_25;
7854                 tw32(TG3_CPMU_LSPD_10MB_CLK, val);
7855
7856                 val = tr32(TG3_CPMU_LNK_AWARE_PWRMD);
7857                 val &= ~CPMU_LNK_AWARE_MACCLK_MASK;
7858                 val |= CPMU_LNK_AWARE_MACCLK_6_25;
7859                 tw32(TG3_CPMU_LNK_AWARE_PWRMD, val);
7860
7861                 val = tr32(TG3_CPMU_HST_ACC);
7862                 val &= ~CPMU_HST_ACC_MACCLK_MASK;
7863                 val |= CPMU_HST_ACC_MACCLK_6_25;
7864                 tw32(TG3_CPMU_HST_ACC, val);
7865         }
7866
7867         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780) {
7868                 val = tr32(PCIE_PWR_MGMT_THRESH) & ~PCIE_PWR_MGMT_L1_THRESH_MSK;
7869                 val |= PCIE_PWR_MGMT_EXT_ASPM_TMR_EN |
7870                        PCIE_PWR_MGMT_L1_THRESH_4MS;
7871                 tw32(PCIE_PWR_MGMT_THRESH, val);
7872
7873                 val = tr32(TG3_PCIE_EIDLE_DELAY) & ~TG3_PCIE_EIDLE_DELAY_MASK;
7874                 tw32(TG3_PCIE_EIDLE_DELAY, val | TG3_PCIE_EIDLE_DELAY_13_CLKS);
7875
7876                 tw32(TG3_CORR_ERR_STAT, TG3_CORR_ERR_STAT_CLEAR);
7877
7878                 val = tr32(TG3_PCIE_LNKCTL) & ~TG3_PCIE_LNKCTL_L1_PLL_PD_EN;
7879                 tw32(TG3_PCIE_LNKCTL, val | TG3_PCIE_LNKCTL_L1_PLL_PD_DIS);
7880         }
7881
7882         if (tp->tg3_flags3 & TG3_FLG3_L1PLLPD_EN) {
7883                 u32 grc_mode = tr32(GRC_MODE);
7884
7885                 /* Access the lower 1K of PL PCIE block registers. */
7886                 val = grc_mode & ~GRC_MODE_PCIE_PORT_MASK;
7887                 tw32(GRC_MODE, val | GRC_MODE_PCIE_PL_SEL);
7888
7889                 val = tr32(TG3_PCIE_TLDLPL_PORT + TG3_PCIE_PL_LO_PHYCTL1);
7890                 tw32(TG3_PCIE_TLDLPL_PORT + TG3_PCIE_PL_LO_PHYCTL1,
7891                      val | TG3_PCIE_PL_LO_PHYCTL1_L1PLLPD_EN);
7892
7893                 tw32(GRC_MODE, grc_mode);
7894         }
7895
7896         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765) {
7897                 if (tp->pci_chip_rev_id == CHIPREV_ID_57765_A0) {
7898                         u32 grc_mode = tr32(GRC_MODE);
7899
7900                         /* Access the lower 1K of PL PCIE block registers. */
7901                         val = grc_mode & ~GRC_MODE_PCIE_PORT_MASK;
7902                         tw32(GRC_MODE, val | GRC_MODE_PCIE_PL_SEL);
7903
7904                         val = tr32(TG3_PCIE_TLDLPL_PORT +
7905                                    TG3_PCIE_PL_LO_PHYCTL5);
7906                         tw32(TG3_PCIE_TLDLPL_PORT + TG3_PCIE_PL_LO_PHYCTL5,
7907                              val | TG3_PCIE_PL_LO_PHYCTL5_DIS_L2CLKREQ);
7908
7909                         tw32(GRC_MODE, grc_mode);
7910                 }
7911
7912                 val = tr32(TG3_CPMU_LSPD_10MB_CLK);
7913                 val &= ~CPMU_LSPD_10MB_MACCLK_MASK;
7914                 val |= CPMU_LSPD_10MB_MACCLK_6_25;
7915                 tw32(TG3_CPMU_LSPD_10MB_CLK, val);
7916         }
7917
7918         /* This works around an issue with Athlon chipsets on
7919          * B3 tigon3 silicon.  This bit has no effect on any
7920          * other revision.  But do not set this on PCI Express
7921          * chips and don't even touch the clocks if the CPMU is present.
7922          */
7923         if (!(tp->tg3_flags & TG3_FLAG_CPMU_PRESENT)) {
7924                 if (!(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS))
7925                         tp->pci_clock_ctrl |= CLOCK_CTRL_DELAY_PCI_GRANT;
7926                 tw32_f(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl);
7927         }
7928
7929         if (tp->pci_chip_rev_id == CHIPREV_ID_5704_A0 &&
7930             (tp->tg3_flags & TG3_FLAG_PCIX_MODE)) {
7931                 val = tr32(TG3PCI_PCISTATE);
7932                 val |= PCISTATE_RETRY_SAME_DMA;
7933                 tw32(TG3PCI_PCISTATE, val);
7934         }
7935
7936         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
7937                 /* Allow reads and writes to the
7938                  * APE register and memory space.
7939                  */
7940                 val = tr32(TG3PCI_PCISTATE);
7941                 val |= PCISTATE_ALLOW_APE_CTLSPC_WR |
7942                        PCISTATE_ALLOW_APE_SHMEM_WR |
7943                        PCISTATE_ALLOW_APE_PSPACE_WR;
7944                 tw32(TG3PCI_PCISTATE, val);
7945         }
7946
7947         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5704_BX) {
7948                 /* Enable some hw fixes.  */
7949                 val = tr32(TG3PCI_MSI_DATA);
7950                 val |= (1 << 26) | (1 << 28) | (1 << 29);
7951                 tw32(TG3PCI_MSI_DATA, val);
7952         }
7953
7954         /* Descriptor ring init may make accesses to the
7955          * NIC SRAM area to setup the TX descriptors, so we
7956          * can only do this after the hardware has been
7957          * successfully reset.
7958          */
7959         err = tg3_init_rings(tp);
7960         if (err)
7961                 return err;
7962
7963         if (tp->tg3_flags3 & TG3_FLG3_5717_PLUS) {
7964                 val = tr32(TG3PCI_DMA_RW_CTRL) &
7965                       ~DMA_RWCTRL_DIS_CACHE_ALIGNMENT;
7966                 if (tp->pci_chip_rev_id == CHIPREV_ID_57765_A0)
7967                         val &= ~DMA_RWCTRL_CRDRDR_RDMA_MRRS_MSK;
7968                 tw32(TG3PCI_DMA_RW_CTRL, val | tp->dma_rwctrl);
7969         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5784 &&
7970                    GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5761) {
7971                 /* This value is determined during the probe time DMA
7972                  * engine test, tg3_test_dma.
7973                  */
7974                 tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
7975         }
7976
7977         tp->grc_mode &= ~(GRC_MODE_HOST_SENDBDS |
7978                           GRC_MODE_4X_NIC_SEND_RINGS |
7979                           GRC_MODE_NO_TX_PHDR_CSUM |
7980                           GRC_MODE_NO_RX_PHDR_CSUM);
7981         tp->grc_mode |= GRC_MODE_HOST_SENDBDS;
7982
7983         /* Pseudo-header checksum is done by hardware logic and not
7984          * the offload processers, so make the chip do the pseudo-
7985          * header checksums on receive.  For transmit it is more
7986          * convenient to do the pseudo-header checksum in software
7987          * as Linux does that on transmit for us in all cases.
7988          */
7989         tp->grc_mode |= GRC_MODE_NO_TX_PHDR_CSUM;
7990
7991         tw32(GRC_MODE,
7992              tp->grc_mode |
7993              (GRC_MODE_IRQ_ON_MAC_ATTN | GRC_MODE_HOST_STACKUP));
7994
7995         /* Setup the timer prescalar register.  Clock is always 66Mhz. */
7996         val = tr32(GRC_MISC_CFG);
7997         val &= ~0xff;
7998         val |= (65 << GRC_MISC_CFG_PRESCALAR_SHIFT);
7999         tw32(GRC_MISC_CFG, val);
8000
8001         /* Initialize MBUF/DESC pool. */
8002         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) {
8003                 /* Do nothing.  */
8004         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5705) {
8005                 tw32(BUFMGR_MB_POOL_ADDR, NIC_SRAM_MBUF_POOL_BASE);
8006                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704)
8007                         tw32(BUFMGR_MB_POOL_SIZE, NIC_SRAM_MBUF_POOL_SIZE64);
8008                 else
8009                         tw32(BUFMGR_MB_POOL_SIZE, NIC_SRAM_MBUF_POOL_SIZE96);
8010                 tw32(BUFMGR_DMA_DESC_POOL_ADDR, NIC_SRAM_DMA_DESC_POOL_BASE);
8011                 tw32(BUFMGR_DMA_DESC_POOL_SIZE, NIC_SRAM_DMA_DESC_POOL_SIZE);
8012         } else if (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) {
8013                 int fw_len;
8014
8015                 fw_len = tp->fw_len;
8016                 fw_len = (fw_len + (0x80 - 1)) & ~(0x80 - 1);
8017                 tw32(BUFMGR_MB_POOL_ADDR,
8018                      NIC_SRAM_MBUF_POOL_BASE5705 + fw_len);
8019                 tw32(BUFMGR_MB_POOL_SIZE,
8020                      NIC_SRAM_MBUF_POOL_SIZE5705 - fw_len - 0xa00);
8021         }
8022
8023         if (tp->dev->mtu <= ETH_DATA_LEN) {
8024                 tw32(BUFMGR_MB_RDMA_LOW_WATER,
8025                      tp->bufmgr_config.mbuf_read_dma_low_water);
8026                 tw32(BUFMGR_MB_MACRX_LOW_WATER,
8027                      tp->bufmgr_config.mbuf_mac_rx_low_water);
8028                 tw32(BUFMGR_MB_HIGH_WATER,
8029                      tp->bufmgr_config.mbuf_high_water);
8030         } else {
8031                 tw32(BUFMGR_MB_RDMA_LOW_WATER,
8032                      tp->bufmgr_config.mbuf_read_dma_low_water_jumbo);
8033                 tw32(BUFMGR_MB_MACRX_LOW_WATER,
8034                      tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo);
8035                 tw32(BUFMGR_MB_HIGH_WATER,
8036                      tp->bufmgr_config.mbuf_high_water_jumbo);
8037         }
8038         tw32(BUFMGR_DMA_LOW_WATER,
8039              tp->bufmgr_config.dma_low_water);
8040         tw32(BUFMGR_DMA_HIGH_WATER,
8041              tp->bufmgr_config.dma_high_water);
8042
8043         val = BUFMGR_MODE_ENABLE | BUFMGR_MODE_ATTN_ENABLE;
8044         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719)
8045                 val |= BUFMGR_MODE_NO_TX_UNDERRUN;
8046         tw32(BUFMGR_MODE, val);
8047         for (i = 0; i < 2000; i++) {
8048                 if (tr32(BUFMGR_MODE) & BUFMGR_MODE_ENABLE)
8049                         break;
8050                 udelay(10);
8051         }
8052         if (i >= 2000) {
8053                 netdev_err(tp->dev, "%s cannot enable BUFMGR\n", __func__);
8054                 return -ENODEV;
8055         }
8056
8057         /* Setup replenish threshold. */
8058         val = tp->rx_pending / 8;
8059         if (val == 0)
8060                 val = 1;
8061         else if (val > tp->rx_std_max_post)
8062                 val = tp->rx_std_max_post;
8063         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
8064                 if (tp->pci_chip_rev_id == CHIPREV_ID_5906_A1)
8065                         tw32(ISO_PKT_TX, (tr32(ISO_PKT_TX) & ~0x3) | 0x2);
8066
8067                 if (val > (TG3_RX_INTERNAL_RING_SZ_5906 / 2))
8068                         val = TG3_RX_INTERNAL_RING_SZ_5906 / 2;
8069         }
8070
8071         tw32(RCVBDI_STD_THRESH, val);
8072
8073         /* Initialize TG3_BDINFO's at:
8074          *  RCVDBDI_STD_BD:     standard eth size rx ring
8075          *  RCVDBDI_JUMBO_BD:   jumbo frame rx ring
8076          *  RCVDBDI_MINI_BD:    small frame rx ring (??? does not work)
8077          *
8078          * like so:
8079          *  TG3_BDINFO_HOST_ADDR:       high/low parts of DMA address of ring
8080          *  TG3_BDINFO_MAXLEN_FLAGS:    (rx max buffer size << 16) |
8081          *                              ring attribute flags
8082          *  TG3_BDINFO_NIC_ADDR:        location of descriptors in nic SRAM
8083          *
8084          * Standard receive ring @ NIC_SRAM_RX_BUFFER_DESC, 512 entries.
8085          * Jumbo receive ring @ NIC_SRAM_RX_JUMBO_BUFFER_DESC, 256 entries.
8086          *
8087          * The size of each ring is fixed in the firmware, but the location is
8088          * configurable.
8089          */
8090         tw32(RCVDBDI_STD_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_HIGH,
8091              ((u64) tpr->rx_std_mapping >> 32));
8092         tw32(RCVDBDI_STD_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_LOW,
8093              ((u64) tpr->rx_std_mapping & 0xffffffff));
8094         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5717 &&
8095             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5719)
8096                 tw32(RCVDBDI_STD_BD + TG3_BDINFO_NIC_ADDR,
8097                      NIC_SRAM_RX_BUFFER_DESC);
8098
8099         /* Disable the mini ring */
8100         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
8101                 tw32(RCVDBDI_MINI_BD + TG3_BDINFO_MAXLEN_FLAGS,
8102                      BDINFO_FLAGS_DISABLED);
8103
8104         /* Program the jumbo buffer descriptor ring control
8105          * blocks on those devices that have them.
8106          */
8107         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719 ||
8108             ((tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) &&
8109             !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS))) {
8110                 /* Setup replenish threshold. */
8111                 tw32(RCVBDI_JUMBO_THRESH, tp->rx_jumbo_pending / 8);
8112
8113                 if (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE) {
8114                         tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_HIGH,
8115                              ((u64) tpr->rx_jmb_mapping >> 32));
8116                         tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_LOW,
8117                              ((u64) tpr->rx_jmb_mapping & 0xffffffff));
8118                         tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_MAXLEN_FLAGS,
8119                              (RX_JUMBO_MAX_SIZE << BDINFO_FLAGS_MAXLEN_SHIFT) |
8120                              BDINFO_FLAGS_USE_EXT_RECV);
8121                         if (!(tp->tg3_flags3 & TG3_FLG3_USE_JUMBO_BDFLAG) ||
8122                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
8123                                 tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_NIC_ADDR,
8124                                      NIC_SRAM_RX_JUMBO_BUFFER_DESC);
8125                 } else {
8126                         tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_MAXLEN_FLAGS,
8127                              BDINFO_FLAGS_DISABLED);
8128                 }
8129
8130                 if (tp->tg3_flags3 & TG3_FLG3_5717_PLUS) {
8131                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
8132                                 val = RX_STD_MAX_SIZE_5705;
8133                         else
8134                                 val = RX_STD_MAX_SIZE_5717;
8135                         val <<= BDINFO_FLAGS_MAXLEN_SHIFT;
8136                         val |= (TG3_RX_STD_DMA_SZ << 2);
8137                 } else
8138                         val = TG3_RX_STD_DMA_SZ << BDINFO_FLAGS_MAXLEN_SHIFT;
8139         } else
8140                 val = RX_STD_MAX_SIZE_5705 << BDINFO_FLAGS_MAXLEN_SHIFT;
8141
8142         tw32(RCVDBDI_STD_BD + TG3_BDINFO_MAXLEN_FLAGS, val);
8143
8144         tpr->rx_std_prod_idx = tp->rx_pending;
8145         tw32_rx_mbox(TG3_RX_STD_PROD_IDX_REG, tpr->rx_std_prod_idx);
8146
8147         tpr->rx_jmb_prod_idx = (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE) ?
8148                           tp->rx_jumbo_pending : 0;
8149         tw32_rx_mbox(TG3_RX_JMB_PROD_IDX_REG, tpr->rx_jmb_prod_idx);
8150
8151         if (tp->tg3_flags3 & TG3_FLG3_5717_PLUS) {
8152                 tw32(STD_REPLENISH_LWM, 32);
8153                 tw32(JMB_REPLENISH_LWM, 16);
8154         }
8155
8156         tg3_rings_reset(tp);
8157
8158         /* Initialize MAC address and backoff seed. */
8159         __tg3_set_mac_addr(tp, 0);
8160
8161         /* MTU + ethernet header + FCS + optional VLAN tag */
8162         tw32(MAC_RX_MTU_SIZE,
8163              tp->dev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN);
8164
8165         /* The slot time is changed by tg3_setup_phy if we
8166          * run at gigabit with half duplex.
8167          */
8168         tw32(MAC_TX_LENGTHS,
8169              (2 << TX_LENGTHS_IPG_CRS_SHIFT) |
8170              (6 << TX_LENGTHS_IPG_SHIFT) |
8171              (32 << TX_LENGTHS_SLOT_TIME_SHIFT));
8172
8173         /* Receive rules. */
8174         tw32(MAC_RCV_RULE_CFG, RCV_RULE_CFG_DEFAULT_CLASS);
8175         tw32(RCVLPC_CONFIG, 0x0181);
8176
8177         /* Calculate RDMAC_MODE setting early, we need it to determine
8178          * the RCVLPC_STATE_ENABLE mask.
8179          */
8180         rdmac_mode = (RDMAC_MODE_ENABLE | RDMAC_MODE_TGTABORT_ENAB |
8181                       RDMAC_MODE_MSTABORT_ENAB | RDMAC_MODE_PARITYERR_ENAB |
8182                       RDMAC_MODE_ADDROFLOW_ENAB | RDMAC_MODE_FIFOOFLOW_ENAB |
8183                       RDMAC_MODE_FIFOURUN_ENAB | RDMAC_MODE_FIFOOREAD_ENAB |
8184                       RDMAC_MODE_LNGREAD_ENAB);
8185
8186         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717)
8187                 rdmac_mode |= RDMAC_MODE_MULT_DMA_RD_DIS;
8188
8189         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
8190             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
8191             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
8192                 rdmac_mode |= RDMAC_MODE_BD_SBD_CRPT_ENAB |
8193                               RDMAC_MODE_MBUF_RBD_CRPT_ENAB |
8194                               RDMAC_MODE_MBUF_SBD_CRPT_ENAB;
8195
8196         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 &&
8197             tp->pci_chip_rev_id != CHIPREV_ID_5705_A0) {
8198                 if (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE &&
8199                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
8200                         rdmac_mode |= RDMAC_MODE_FIFO_SIZE_128;
8201                 } else if (!(tr32(TG3PCI_PCISTATE) & PCISTATE_BUS_SPEED_HIGH) &&
8202                            !(tp->tg3_flags2 & TG3_FLG2_IS_5788)) {
8203                         rdmac_mode |= RDMAC_MODE_FIFO_LONG_BURST;
8204                 }
8205         }
8206
8207         if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS)
8208                 rdmac_mode |= RDMAC_MODE_FIFO_LONG_BURST;
8209
8210         if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
8211                 rdmac_mode |= RDMAC_MODE_IPV4_LSO_EN;
8212
8213         if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_3) ||
8214             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
8215             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
8216                 rdmac_mode |= RDMAC_MODE_IPV6_LSO_EN;
8217
8218         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
8219             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
8220             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
8221             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 ||
8222             (tp->tg3_flags3 & TG3_FLG3_5717_PLUS)) {
8223                 val = tr32(TG3_RDMA_RSRVCTRL_REG);
8224                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719) {
8225                         val &= ~(TG3_RDMA_RSRVCTRL_TXMRGN_MASK |
8226                                  TG3_RDMA_RSRVCTRL_FIFO_LWM_MASK |
8227                                  TG3_RDMA_RSRVCTRL_FIFO_HWM_MASK);
8228                         val |= TG3_RDMA_RSRVCTRL_TXMRGN_320B |
8229                                TG3_RDMA_RSRVCTRL_FIFO_LWM_1_5K |
8230                                TG3_RDMA_RSRVCTRL_FIFO_HWM_1_5K;
8231                 }
8232                 tw32(TG3_RDMA_RSRVCTRL_REG,
8233                      val | TG3_RDMA_RSRVCTRL_FIFO_OFLW_FIX);
8234         }
8235
8236         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719) {
8237                 val = tr32(TG3_LSO_RD_DMA_CRPTEN_CTRL);
8238                 tw32(TG3_LSO_RD_DMA_CRPTEN_CTRL, val |
8239                      TG3_LSO_RD_DMA_CRPTEN_CTRL_BLEN_BD_4K |
8240                      TG3_LSO_RD_DMA_CRPTEN_CTRL_BLEN_LSO_4K);
8241         }
8242
8243         /* Receive/send statistics. */
8244         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) {
8245                 val = tr32(RCVLPC_STATS_ENABLE);
8246                 val &= ~RCVLPC_STATSENAB_DACK_FIX;
8247                 tw32(RCVLPC_STATS_ENABLE, val);
8248         } else if ((rdmac_mode & RDMAC_MODE_FIFO_SIZE_128) &&
8249                    (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE)) {
8250                 val = tr32(RCVLPC_STATS_ENABLE);
8251                 val &= ~RCVLPC_STATSENAB_LNGBRST_RFIX;
8252                 tw32(RCVLPC_STATS_ENABLE, val);
8253         } else {
8254                 tw32(RCVLPC_STATS_ENABLE, 0xffffff);
8255         }
8256         tw32(RCVLPC_STATSCTRL, RCVLPC_STATSCTRL_ENABLE);
8257         tw32(SNDDATAI_STATSENAB, 0xffffff);
8258         tw32(SNDDATAI_STATSCTRL,
8259              (SNDDATAI_SCTRL_ENABLE |
8260               SNDDATAI_SCTRL_FASTUPD));
8261
8262         /* Setup host coalescing engine. */
8263         tw32(HOSTCC_MODE, 0);
8264         for (i = 0; i < 2000; i++) {
8265                 if (!(tr32(HOSTCC_MODE) & HOSTCC_MODE_ENABLE))
8266                         break;
8267                 udelay(10);
8268         }
8269
8270         __tg3_set_coalesce(tp, &tp->coal);
8271
8272         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
8273                 /* Status/statistics block address.  See tg3_timer,
8274                  * the tg3_periodic_fetch_stats call there, and
8275                  * tg3_get_stats to see how this works for 5705/5750 chips.
8276                  */
8277                 tw32(HOSTCC_STATS_BLK_HOST_ADDR + TG3_64BIT_REG_HIGH,
8278                      ((u64) tp->stats_mapping >> 32));
8279                 tw32(HOSTCC_STATS_BLK_HOST_ADDR + TG3_64BIT_REG_LOW,
8280                      ((u64) tp->stats_mapping & 0xffffffff));
8281                 tw32(HOSTCC_STATS_BLK_NIC_ADDR, NIC_SRAM_STATS_BLK);
8282
8283                 tw32(HOSTCC_STATUS_BLK_NIC_ADDR, NIC_SRAM_STATUS_BLK);
8284
8285                 /* Clear statistics and status block memory areas */
8286                 for (i = NIC_SRAM_STATS_BLK;
8287                      i < NIC_SRAM_STATUS_BLK + TG3_HW_STATUS_SIZE;
8288                      i += sizeof(u32)) {
8289                         tg3_write_mem(tp, i, 0);
8290                         udelay(40);
8291                 }
8292         }
8293
8294         tw32(HOSTCC_MODE, HOSTCC_MODE_ENABLE | tp->coalesce_mode);
8295
8296         tw32(RCVCC_MODE, RCVCC_MODE_ENABLE | RCVCC_MODE_ATTN_ENABLE);
8297         tw32(RCVLPC_MODE, RCVLPC_MODE_ENABLE);
8298         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
8299                 tw32(RCVLSC_MODE, RCVLSC_MODE_ENABLE | RCVLSC_MODE_ATTN_ENABLE);
8300
8301         if (tp->phy_flags & TG3_PHYFLG_MII_SERDES) {
8302                 tp->phy_flags &= ~TG3_PHYFLG_PARALLEL_DETECT;
8303                 /* reset to prevent losing 1st rx packet intermittently */
8304                 tw32_f(MAC_RX_MODE, RX_MODE_RESET);
8305                 udelay(10);
8306         }
8307
8308         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
8309                 tp->mac_mode = MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN;
8310         else
8311                 tp->mac_mode = 0;
8312         tp->mac_mode |= MAC_MODE_TXSTAT_ENABLE | MAC_MODE_RXSTAT_ENABLE |
8313                 MAC_MODE_TDE_ENABLE | MAC_MODE_RDE_ENABLE | MAC_MODE_FHDE_ENABLE;
8314         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
8315             !(tp->phy_flags & TG3_PHYFLG_PHY_SERDES) &&
8316             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700)
8317                 tp->mac_mode |= MAC_MODE_LINK_POLARITY;
8318         tw32_f(MAC_MODE, tp->mac_mode | MAC_MODE_RXSTAT_CLEAR | MAC_MODE_TXSTAT_CLEAR);
8319         udelay(40);
8320
8321         /* tp->grc_local_ctrl is partially set up during tg3_get_invariants().
8322          * If TG3_FLG2_IS_NIC is zero, we should read the
8323          * register to preserve the GPIO settings for LOMs. The GPIOs,
8324          * whether used as inputs or outputs, are set by boot code after
8325          * reset.
8326          */
8327         if (!(tp->tg3_flags2 & TG3_FLG2_IS_NIC)) {
8328                 u32 gpio_mask;
8329
8330                 gpio_mask = GRC_LCLCTRL_GPIO_OE0 | GRC_LCLCTRL_GPIO_OE1 |
8331                             GRC_LCLCTRL_GPIO_OE2 | GRC_LCLCTRL_GPIO_OUTPUT0 |
8332                             GRC_LCLCTRL_GPIO_OUTPUT1 | GRC_LCLCTRL_GPIO_OUTPUT2;
8333
8334                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752)
8335                         gpio_mask |= GRC_LCLCTRL_GPIO_OE3 |
8336                                      GRC_LCLCTRL_GPIO_OUTPUT3;
8337
8338                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755)
8339                         gpio_mask |= GRC_LCLCTRL_GPIO_UART_SEL;
8340
8341                 tp->grc_local_ctrl &= ~gpio_mask;
8342                 tp->grc_local_ctrl |= tr32(GRC_LOCAL_CTRL) & gpio_mask;
8343
8344                 /* GPIO1 must be driven high for eeprom write protect */
8345                 if (tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT)
8346                         tp->grc_local_ctrl |= (GRC_LCLCTRL_GPIO_OE1 |
8347                                                GRC_LCLCTRL_GPIO_OUTPUT1);
8348         }
8349         tw32_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl);
8350         udelay(100);
8351
8352         if ((tp->tg3_flags2 & TG3_FLG2_USING_MSIX) &&
8353                 tp->irq_cnt > 1) {
8354                 val = tr32(MSGINT_MODE);
8355                 val |= MSGINT_MODE_MULTIVEC_EN | MSGINT_MODE_ENABLE;
8356                 tw32(MSGINT_MODE, val);
8357         }
8358
8359         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
8360                 tw32_f(DMAC_MODE, DMAC_MODE_ENABLE);
8361                 udelay(40);
8362         }
8363
8364         val = (WDMAC_MODE_ENABLE | WDMAC_MODE_TGTABORT_ENAB |
8365                WDMAC_MODE_MSTABORT_ENAB | WDMAC_MODE_PARITYERR_ENAB |
8366                WDMAC_MODE_ADDROFLOW_ENAB | WDMAC_MODE_FIFOOFLOW_ENAB |
8367                WDMAC_MODE_FIFOURUN_ENAB | WDMAC_MODE_FIFOOREAD_ENAB |
8368                WDMAC_MODE_LNGREAD_ENAB);
8369
8370         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 &&
8371             tp->pci_chip_rev_id != CHIPREV_ID_5705_A0) {
8372                 if ((tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) &&
8373                     (tp->pci_chip_rev_id == CHIPREV_ID_5705_A1 ||
8374                      tp->pci_chip_rev_id == CHIPREV_ID_5705_A2)) {
8375                         /* nothing */
8376                 } else if (!(tr32(TG3PCI_PCISTATE) & PCISTATE_BUS_SPEED_HIGH) &&
8377                            !(tp->tg3_flags2 & TG3_FLG2_IS_5788)) {
8378                         val |= WDMAC_MODE_RX_ACCEL;
8379                 }
8380         }
8381
8382         /* Enable host coalescing bug fix */
8383         if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
8384                 val |= WDMAC_MODE_STATUS_TAG_FIX;
8385
8386         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
8387                 val |= WDMAC_MODE_BURST_ALL_DATA;
8388
8389         tw32_f(WDMAC_MODE, val);
8390         udelay(40);
8391
8392         if (tp->tg3_flags & TG3_FLAG_PCIX_MODE) {
8393                 u16 pcix_cmd;
8394
8395                 pci_read_config_word(tp->pdev, tp->pcix_cap + PCI_X_CMD,
8396                                      &pcix_cmd);
8397                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703) {
8398                         pcix_cmd &= ~PCI_X_CMD_MAX_READ;
8399                         pcix_cmd |= PCI_X_CMD_READ_2K;
8400                 } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
8401                         pcix_cmd &= ~(PCI_X_CMD_MAX_SPLIT | PCI_X_CMD_MAX_READ);
8402                         pcix_cmd |= PCI_X_CMD_READ_2K;
8403                 }
8404                 pci_write_config_word(tp->pdev, tp->pcix_cap + PCI_X_CMD,
8405                                       pcix_cmd);
8406         }
8407
8408         tw32_f(RDMAC_MODE, rdmac_mode);
8409         udelay(40);
8410
8411         tw32(RCVDCC_MODE, RCVDCC_MODE_ENABLE | RCVDCC_MODE_ATTN_ENABLE);
8412         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
8413                 tw32(MBFREE_MODE, MBFREE_MODE_ENABLE);
8414
8415         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761)
8416                 tw32(SNDDATAC_MODE,
8417                      SNDDATAC_MODE_ENABLE | SNDDATAC_MODE_CDELAY);
8418         else
8419                 tw32(SNDDATAC_MODE, SNDDATAC_MODE_ENABLE);
8420
8421         tw32(SNDBDC_MODE, SNDBDC_MODE_ENABLE | SNDBDC_MODE_ATTN_ENABLE);
8422         tw32(RCVBDI_MODE, RCVBDI_MODE_ENABLE | RCVBDI_MODE_RCB_ATTN_ENAB);
8423         val = RCVDBDI_MODE_ENABLE | RCVDBDI_MODE_INV_RING_SZ;
8424         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
8425             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719)
8426                 val |= RCVDBDI_MODE_LRG_RING_SZ;
8427         tw32(RCVDBDI_MODE, val);
8428         tw32(SNDDATAI_MODE, SNDDATAI_MODE_ENABLE);
8429         if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
8430                 tw32(SNDDATAI_MODE, SNDDATAI_MODE_ENABLE | 0x8);
8431         val = SNDBDI_MODE_ENABLE | SNDBDI_MODE_ATTN_ENABLE;
8432         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
8433                 val |= SNDBDI_MODE_MULTI_TXQ_EN;
8434         tw32(SNDBDI_MODE, val);
8435         tw32(SNDBDS_MODE, SNDBDS_MODE_ENABLE | SNDBDS_MODE_ATTN_ENABLE);
8436
8437         if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0) {
8438                 err = tg3_load_5701_a0_firmware_fix(tp);
8439                 if (err)
8440                         return err;
8441         }
8442
8443         if (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) {
8444                 err = tg3_load_tso_firmware(tp);
8445                 if (err)
8446                         return err;
8447         }
8448
8449         tp->tx_mode = TX_MODE_ENABLE;
8450         if ((tp->tg3_flags3 & TG3_FLG3_5755_PLUS) ||
8451             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
8452                 tp->tx_mode |= TX_MODE_MBUF_LOCKUP_FIX;
8453         tw32_f(MAC_TX_MODE, tp->tx_mode);
8454         udelay(100);
8455
8456         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS) {
8457                 u32 reg = MAC_RSS_INDIR_TBL_0;
8458                 u8 *ent = (u8 *)&val;
8459
8460                 /* Setup the indirection table */
8461                 for (i = 0; i < TG3_RSS_INDIR_TBL_SIZE; i++) {
8462                         int idx = i % sizeof(val);
8463
8464                         ent[idx] = i % (tp->irq_cnt - 1);
8465                         if (idx == sizeof(val) - 1) {
8466                                 tw32(reg, val);
8467                                 reg += 4;
8468                         }
8469                 }
8470
8471                 /* Setup the "secret" hash key. */
8472                 tw32(MAC_RSS_HASH_KEY_0, 0x5f865437);
8473                 tw32(MAC_RSS_HASH_KEY_1, 0xe4ac62cc);
8474                 tw32(MAC_RSS_HASH_KEY_2, 0x50103a45);
8475                 tw32(MAC_RSS_HASH_KEY_3, 0x36621985);
8476                 tw32(MAC_RSS_HASH_KEY_4, 0xbf14c0e8);
8477                 tw32(MAC_RSS_HASH_KEY_5, 0x1bc27a1e);
8478                 tw32(MAC_RSS_HASH_KEY_6, 0x84f4b556);
8479                 tw32(MAC_RSS_HASH_KEY_7, 0x094ea6fe);
8480                 tw32(MAC_RSS_HASH_KEY_8, 0x7dda01e7);
8481                 tw32(MAC_RSS_HASH_KEY_9, 0xc04d7481);
8482         }
8483
8484         tp->rx_mode = RX_MODE_ENABLE;
8485         if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
8486                 tp->rx_mode |= RX_MODE_IPV6_CSUM_ENABLE;
8487
8488         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS)
8489                 tp->rx_mode |= RX_MODE_RSS_ENABLE |
8490                                RX_MODE_RSS_ITBL_HASH_BITS_7 |
8491                                RX_MODE_RSS_IPV6_HASH_EN |
8492                                RX_MODE_RSS_TCP_IPV6_HASH_EN |
8493                                RX_MODE_RSS_IPV4_HASH_EN |
8494                                RX_MODE_RSS_TCP_IPV4_HASH_EN;
8495
8496         tw32_f(MAC_RX_MODE, tp->rx_mode);
8497         udelay(10);
8498
8499         tw32(MAC_LED_CTRL, tp->led_ctrl);
8500
8501         tw32(MAC_MI_STAT, MAC_MI_STAT_LNKSTAT_ATTN_ENAB);
8502         if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES) {
8503                 tw32_f(MAC_RX_MODE, RX_MODE_RESET);
8504                 udelay(10);
8505         }
8506         tw32_f(MAC_RX_MODE, tp->rx_mode);
8507         udelay(10);
8508
8509         if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES) {
8510                 if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) &&
8511                         !(tp->phy_flags & TG3_PHYFLG_SERDES_PREEMPHASIS)) {
8512                         /* Set drive transmission level to 1.2V  */
8513                         /* only if the signal pre-emphasis bit is not set  */
8514                         val = tr32(MAC_SERDES_CFG);
8515                         val &= 0xfffff000;
8516                         val |= 0x880;
8517                         tw32(MAC_SERDES_CFG, val);
8518                 }
8519                 if (tp->pci_chip_rev_id == CHIPREV_ID_5703_A1)
8520                         tw32(MAC_SERDES_CFG, 0x616000);
8521         }
8522
8523         /* Prevent chip from dropping frames when flow control
8524          * is enabled.
8525          */
8526         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
8527                 val = 1;
8528         else
8529                 val = 2;
8530         tw32_f(MAC_LOW_WMARK_MAX_RX_FRAME, val);
8531
8532         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 &&
8533             (tp->phy_flags & TG3_PHYFLG_PHY_SERDES)) {
8534                 /* Use hardware link auto-negotiation */
8535                 tp->tg3_flags2 |= TG3_FLG2_HW_AUTONEG;
8536         }
8537
8538         if ((tp->phy_flags & TG3_PHYFLG_MII_SERDES) &&
8539             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714)) {
8540                 u32 tmp;
8541
8542                 tmp = tr32(SERDES_RX_CTRL);
8543                 tw32(SERDES_RX_CTRL, tmp | SERDES_RX_SIG_DETECT);
8544                 tp->grc_local_ctrl &= ~GRC_LCLCTRL_USE_EXT_SIG_DETECT;
8545                 tp->grc_local_ctrl |= GRC_LCLCTRL_USE_SIG_DETECT;
8546                 tw32(GRC_LOCAL_CTRL, tp->grc_local_ctrl);
8547         }
8548
8549         if (!(tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB)) {
8550                 if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER) {
8551                         tp->phy_flags &= ~TG3_PHYFLG_IS_LOW_POWER;
8552                         tp->link_config.speed = tp->link_config.orig_speed;
8553                         tp->link_config.duplex = tp->link_config.orig_duplex;
8554                         tp->link_config.autoneg = tp->link_config.orig_autoneg;
8555                 }
8556
8557                 err = tg3_setup_phy(tp, 0);
8558                 if (err)
8559                         return err;
8560
8561                 if (!(tp->phy_flags & TG3_PHYFLG_PHY_SERDES) &&
8562                     !(tp->phy_flags & TG3_PHYFLG_IS_FET)) {
8563                         u32 tmp;
8564
8565                         /* Clear CRC stats. */
8566                         if (!tg3_readphy(tp, MII_TG3_TEST1, &tmp)) {
8567                                 tg3_writephy(tp, MII_TG3_TEST1,
8568                                              tmp | MII_TG3_TEST1_CRC_EN);
8569                                 tg3_readphy(tp, MII_TG3_RXR_COUNTERS, &tmp);
8570                         }
8571                 }
8572         }
8573
8574         __tg3_set_rx_mode(tp->dev);
8575
8576         /* Initialize receive rules. */
8577         tw32(MAC_RCV_RULE_0,  0xc2000000 & RCV_RULE_DISABLE_MASK);
8578         tw32(MAC_RCV_VALUE_0, 0xffffffff & RCV_RULE_DISABLE_MASK);
8579         tw32(MAC_RCV_RULE_1,  0x86000004 & RCV_RULE_DISABLE_MASK);
8580         tw32(MAC_RCV_VALUE_1, 0xffffffff & RCV_RULE_DISABLE_MASK);
8581
8582         if ((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
8583             !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
8584                 limit = 8;
8585         else
8586                 limit = 16;
8587         if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF)
8588                 limit -= 4;
8589         switch (limit) {
8590         case 16:
8591                 tw32(MAC_RCV_RULE_15,  0); tw32(MAC_RCV_VALUE_15,  0);
8592         case 15:
8593                 tw32(MAC_RCV_RULE_14,  0); tw32(MAC_RCV_VALUE_14,  0);
8594         case 14:
8595                 tw32(MAC_RCV_RULE_13,  0); tw32(MAC_RCV_VALUE_13,  0);
8596         case 13:
8597                 tw32(MAC_RCV_RULE_12,  0); tw32(MAC_RCV_VALUE_12,  0);
8598         case 12:
8599                 tw32(MAC_RCV_RULE_11,  0); tw32(MAC_RCV_VALUE_11,  0);
8600         case 11:
8601                 tw32(MAC_RCV_RULE_10,  0); tw32(MAC_RCV_VALUE_10,  0);
8602         case 10:
8603                 tw32(MAC_RCV_RULE_9,  0); tw32(MAC_RCV_VALUE_9,  0);
8604         case 9:
8605                 tw32(MAC_RCV_RULE_8,  0); tw32(MAC_RCV_VALUE_8,  0);
8606         case 8:
8607                 tw32(MAC_RCV_RULE_7,  0); tw32(MAC_RCV_VALUE_7,  0);
8608         case 7:
8609                 tw32(MAC_RCV_RULE_6,  0); tw32(MAC_RCV_VALUE_6,  0);
8610         case 6:
8611                 tw32(MAC_RCV_RULE_5,  0); tw32(MAC_RCV_VALUE_5,  0);
8612         case 5:
8613                 tw32(MAC_RCV_RULE_4,  0); tw32(MAC_RCV_VALUE_4,  0);
8614         case 4:
8615                 /* tw32(MAC_RCV_RULE_3,  0); tw32(MAC_RCV_VALUE_3,  0); */
8616         case 3:
8617                 /* tw32(MAC_RCV_RULE_2,  0); tw32(MAC_RCV_VALUE_2,  0); */
8618         case 2:
8619         case 1:
8620
8621         default:
8622                 break;
8623         }
8624
8625         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
8626                 /* Write our heartbeat update interval to APE. */
8627                 tg3_ape_write32(tp, TG3_APE_HOST_HEARTBEAT_INT_MS,
8628                                 APE_HOST_HEARTBEAT_INT_DISABLE);
8629
8630         tg3_write_sig_post_reset(tp, RESET_KIND_INIT);
8631
8632         return 0;
8633 }
8634
8635 /* Called at device open time to get the chip ready for
8636  * packet processing.  Invoked with tp->lock held.
8637  */
8638 static int tg3_init_hw(struct tg3 *tp, int reset_phy)
8639 {
8640         tg3_switch_clocks(tp);
8641
8642         tw32(TG3PCI_MEM_WIN_BASE_ADDR, 0);
8643
8644         return tg3_reset_hw(tp, reset_phy);
8645 }
8646
8647 #define TG3_STAT_ADD32(PSTAT, REG) \
8648 do {    u32 __val = tr32(REG); \
8649         (PSTAT)->low += __val; \
8650         if ((PSTAT)->low < __val) \
8651                 (PSTAT)->high += 1; \
8652 } while (0)
8653
8654 static void tg3_periodic_fetch_stats(struct tg3 *tp)
8655 {
8656         struct tg3_hw_stats *sp = tp->hw_stats;
8657
8658         if (!netif_carrier_ok(tp->dev))
8659                 return;
8660
8661         TG3_STAT_ADD32(&sp->tx_octets, MAC_TX_STATS_OCTETS);
8662         TG3_STAT_ADD32(&sp->tx_collisions, MAC_TX_STATS_COLLISIONS);
8663         TG3_STAT_ADD32(&sp->tx_xon_sent, MAC_TX_STATS_XON_SENT);
8664         TG3_STAT_ADD32(&sp->tx_xoff_sent, MAC_TX_STATS_XOFF_SENT);
8665         TG3_STAT_ADD32(&sp->tx_mac_errors, MAC_TX_STATS_MAC_ERRORS);
8666         TG3_STAT_ADD32(&sp->tx_single_collisions, MAC_TX_STATS_SINGLE_COLLISIONS);
8667         TG3_STAT_ADD32(&sp->tx_mult_collisions, MAC_TX_STATS_MULT_COLLISIONS);
8668         TG3_STAT_ADD32(&sp->tx_deferred, MAC_TX_STATS_DEFERRED);
8669         TG3_STAT_ADD32(&sp->tx_excessive_collisions, MAC_TX_STATS_EXCESSIVE_COL);
8670         TG3_STAT_ADD32(&sp->tx_late_collisions, MAC_TX_STATS_LATE_COL);
8671         TG3_STAT_ADD32(&sp->tx_ucast_packets, MAC_TX_STATS_UCAST);
8672         TG3_STAT_ADD32(&sp->tx_mcast_packets, MAC_TX_STATS_MCAST);
8673         TG3_STAT_ADD32(&sp->tx_bcast_packets, MAC_TX_STATS_BCAST);
8674
8675         TG3_STAT_ADD32(&sp->rx_octets, MAC_RX_STATS_OCTETS);
8676         TG3_STAT_ADD32(&sp->rx_fragments, MAC_RX_STATS_FRAGMENTS);
8677         TG3_STAT_ADD32(&sp->rx_ucast_packets, MAC_RX_STATS_UCAST);
8678         TG3_STAT_ADD32(&sp->rx_mcast_packets, MAC_RX_STATS_MCAST);
8679         TG3_STAT_ADD32(&sp->rx_bcast_packets, MAC_RX_STATS_BCAST);
8680         TG3_STAT_ADD32(&sp->rx_fcs_errors, MAC_RX_STATS_FCS_ERRORS);
8681         TG3_STAT_ADD32(&sp->rx_align_errors, MAC_RX_STATS_ALIGN_ERRORS);
8682         TG3_STAT_ADD32(&sp->rx_xon_pause_rcvd, MAC_RX_STATS_XON_PAUSE_RECVD);
8683         TG3_STAT_ADD32(&sp->rx_xoff_pause_rcvd, MAC_RX_STATS_XOFF_PAUSE_RECVD);
8684         TG3_STAT_ADD32(&sp->rx_mac_ctrl_rcvd, MAC_RX_STATS_MAC_CTRL_RECVD);
8685         TG3_STAT_ADD32(&sp->rx_xoff_entered, MAC_RX_STATS_XOFF_ENTERED);
8686         TG3_STAT_ADD32(&sp->rx_frame_too_long_errors, MAC_RX_STATS_FRAME_TOO_LONG);
8687         TG3_STAT_ADD32(&sp->rx_jabbers, MAC_RX_STATS_JABBERS);
8688         TG3_STAT_ADD32(&sp->rx_undersize_packets, MAC_RX_STATS_UNDERSIZE);
8689
8690         TG3_STAT_ADD32(&sp->rxbds_empty, RCVLPC_NO_RCV_BD_CNT);
8691         TG3_STAT_ADD32(&sp->rx_discards, RCVLPC_IN_DISCARDS_CNT);
8692         TG3_STAT_ADD32(&sp->rx_errors, RCVLPC_IN_ERRORS_CNT);
8693 }
8694
8695 static void tg3_timer(unsigned long __opaque)
8696 {
8697         struct tg3 *tp = (struct tg3 *) __opaque;
8698
8699         if (tp->irq_sync)
8700                 goto restart_timer;
8701
8702         spin_lock(&tp->lock);
8703
8704         if (!(tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)) {
8705                 /* All of this garbage is because when using non-tagged
8706                  * IRQ status the mailbox/status_block protocol the chip
8707                  * uses with the cpu is race prone.
8708                  */
8709                 if (tp->napi[0].hw_status->status & SD_STATUS_UPDATED) {
8710                         tw32(GRC_LOCAL_CTRL,
8711                              tp->grc_local_ctrl | GRC_LCLCTRL_SETINT);
8712                 } else {
8713                         tw32(HOSTCC_MODE, tp->coalesce_mode |
8714                              HOSTCC_MODE_ENABLE | HOSTCC_MODE_NOW);
8715                 }
8716
8717                 if (!(tr32(WDMAC_MODE) & WDMAC_MODE_ENABLE)) {
8718                         tp->tg3_flags2 |= TG3_FLG2_RESTART_TIMER;
8719                         spin_unlock(&tp->lock);
8720                         schedule_work(&tp->reset_task);
8721                         return;
8722                 }
8723         }
8724
8725         /* This part only runs once per second. */
8726         if (!--tp->timer_counter) {
8727                 if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
8728                         tg3_periodic_fetch_stats(tp);
8729
8730                 if (tp->setlpicnt && !--tp->setlpicnt) {
8731                         u32 val = tr32(TG3_CPMU_EEE_MODE);
8732                         tw32(TG3_CPMU_EEE_MODE,
8733                              val | TG3_CPMU_EEEMD_LPI_ENABLE);
8734                 }
8735
8736                 if (tp->tg3_flags & TG3_FLAG_USE_LINKCHG_REG) {
8737                         u32 mac_stat;
8738                         int phy_event;
8739
8740                         mac_stat = tr32(MAC_STATUS);
8741
8742                         phy_event = 0;
8743                         if (tp->phy_flags & TG3_PHYFLG_USE_MI_INTERRUPT) {
8744                                 if (mac_stat & MAC_STATUS_MI_INTERRUPT)
8745                                         phy_event = 1;
8746                         } else if (mac_stat & MAC_STATUS_LNKSTATE_CHANGED)
8747                                 phy_event = 1;
8748
8749                         if (phy_event)
8750                                 tg3_setup_phy(tp, 0);
8751                 } else if (tp->tg3_flags & TG3_FLAG_POLL_SERDES) {
8752                         u32 mac_stat = tr32(MAC_STATUS);
8753                         int need_setup = 0;
8754
8755                         if (netif_carrier_ok(tp->dev) &&
8756                             (mac_stat & MAC_STATUS_LNKSTATE_CHANGED)) {
8757                                 need_setup = 1;
8758                         }
8759                         if (!netif_carrier_ok(tp->dev) &&
8760                             (mac_stat & (MAC_STATUS_PCS_SYNCED |
8761                                          MAC_STATUS_SIGNAL_DET))) {
8762                                 need_setup = 1;
8763                         }
8764                         if (need_setup) {
8765                                 if (!tp->serdes_counter) {
8766                                         tw32_f(MAC_MODE,
8767                                              (tp->mac_mode &
8768                                               ~MAC_MODE_PORT_MODE_MASK));
8769                                         udelay(40);
8770                                         tw32_f(MAC_MODE, tp->mac_mode);
8771                                         udelay(40);
8772                                 }
8773                                 tg3_setup_phy(tp, 0);
8774                         }
8775                 } else if ((tp->phy_flags & TG3_PHYFLG_MII_SERDES) &&
8776                            (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
8777                         tg3_serdes_parallel_detect(tp);
8778                 }
8779
8780                 tp->timer_counter = tp->timer_multiplier;
8781         }
8782
8783         /* Heartbeat is only sent once every 2 seconds.
8784          *
8785          * The heartbeat is to tell the ASF firmware that the host
8786          * driver is still alive.  In the event that the OS crashes,
8787          * ASF needs to reset the hardware to free up the FIFO space
8788          * that may be filled with rx packets destined for the host.
8789          * If the FIFO is full, ASF will no longer function properly.
8790          *
8791          * Unintended resets have been reported on real time kernels
8792          * where the timer doesn't run on time.  Netpoll will also have
8793          * same problem.
8794          *
8795          * The new FWCMD_NICDRV_ALIVE3 command tells the ASF firmware
8796          * to check the ring condition when the heartbeat is expiring
8797          * before doing the reset.  This will prevent most unintended
8798          * resets.
8799          */
8800         if (!--tp->asf_counter) {
8801                 if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) &&
8802                     !(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)) {
8803                         tg3_wait_for_event_ack(tp);
8804
8805                         tg3_write_mem(tp, NIC_SRAM_FW_CMD_MBOX,
8806                                       FWCMD_NICDRV_ALIVE3);
8807                         tg3_write_mem(tp, NIC_SRAM_FW_CMD_LEN_MBOX, 4);
8808                         tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX,
8809                                       TG3_FW_UPDATE_TIMEOUT_SEC);
8810
8811                         tg3_generate_fw_event(tp);
8812                 }
8813                 tp->asf_counter = tp->asf_multiplier;
8814         }
8815
8816         spin_unlock(&tp->lock);
8817
8818 restart_timer:
8819         tp->timer.expires = jiffies + tp->timer_offset;
8820         add_timer(&tp->timer);
8821 }
8822
8823 static int tg3_request_irq(struct tg3 *tp, int irq_num)
8824 {
8825         irq_handler_t fn;
8826         unsigned long flags;
8827         char *name;
8828         struct tg3_napi *tnapi = &tp->napi[irq_num];
8829
8830         if (tp->irq_cnt == 1)
8831                 name = tp->dev->name;
8832         else {
8833                 name = &tnapi->irq_lbl[0];
8834                 snprintf(name, IFNAMSIZ, "%s-%d", tp->dev->name, irq_num);
8835                 name[IFNAMSIZ-1] = 0;
8836         }
8837
8838         if (tp->tg3_flags2 & TG3_FLG2_USING_MSI_OR_MSIX) {
8839                 fn = tg3_msi;
8840                 if (tp->tg3_flags2 & TG3_FLG2_1SHOT_MSI)
8841                         fn = tg3_msi_1shot;
8842                 flags = IRQF_SAMPLE_RANDOM;
8843         } else {
8844                 fn = tg3_interrupt;
8845                 if (tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)
8846                         fn = tg3_interrupt_tagged;
8847                 flags = IRQF_SHARED | IRQF_SAMPLE_RANDOM;
8848         }
8849
8850         return request_irq(tnapi->irq_vec, fn, flags, name, tnapi);
8851 }
8852
8853 static int tg3_test_interrupt(struct tg3 *tp)
8854 {
8855         struct tg3_napi *tnapi = &tp->napi[0];
8856         struct net_device *dev = tp->dev;
8857         int err, i, intr_ok = 0;
8858         u32 val;
8859
8860         if (!netif_running(dev))
8861                 return -ENODEV;
8862
8863         tg3_disable_ints(tp);
8864
8865         free_irq(tnapi->irq_vec, tnapi);
8866
8867         /*
8868          * Turn off MSI one shot mode.  Otherwise this test has no
8869          * observable way to know whether the interrupt was delivered.
8870          */
8871         if ((tp->tg3_flags3 & TG3_FLG3_5717_PLUS) &&
8872             (tp->tg3_flags2 & TG3_FLG2_USING_MSI)) {
8873                 val = tr32(MSGINT_MODE) | MSGINT_MODE_ONE_SHOT_DISABLE;
8874                 tw32(MSGINT_MODE, val);
8875         }
8876
8877         err = request_irq(tnapi->irq_vec, tg3_test_isr,
8878                           IRQF_SHARED | IRQF_SAMPLE_RANDOM, dev->name, tnapi);
8879         if (err)
8880                 return err;
8881
8882         tnapi->hw_status->status &= ~SD_STATUS_UPDATED;
8883         tg3_enable_ints(tp);
8884
8885         tw32_f(HOSTCC_MODE, tp->coalesce_mode | HOSTCC_MODE_ENABLE |
8886                tnapi->coal_now);
8887
8888         for (i = 0; i < 5; i++) {
8889                 u32 int_mbox, misc_host_ctrl;
8890
8891                 int_mbox = tr32_mailbox(tnapi->int_mbox);
8892                 misc_host_ctrl = tr32(TG3PCI_MISC_HOST_CTRL);
8893
8894                 if ((int_mbox != 0) ||
8895                     (misc_host_ctrl & MISC_HOST_CTRL_MASK_PCI_INT)) {
8896                         intr_ok = 1;
8897                         break;
8898                 }
8899
8900                 msleep(10);
8901         }
8902
8903         tg3_disable_ints(tp);
8904
8905         free_irq(tnapi->irq_vec, tnapi);
8906
8907         err = tg3_request_irq(tp, 0);
8908
8909         if (err)
8910                 return err;
8911
8912         if (intr_ok) {
8913                 /* Reenable MSI one shot mode. */
8914                 if ((tp->tg3_flags3 & TG3_FLG3_5717_PLUS) &&
8915                     (tp->tg3_flags2 & TG3_FLG2_USING_MSI)) {
8916                         val = tr32(MSGINT_MODE) & ~MSGINT_MODE_ONE_SHOT_DISABLE;
8917                         tw32(MSGINT_MODE, val);
8918                 }
8919                 return 0;
8920         }
8921
8922         return -EIO;
8923 }
8924
8925 /* Returns 0 if MSI test succeeds or MSI test fails and INTx mode is
8926  * successfully restored
8927  */
8928 static int tg3_test_msi(struct tg3 *tp)
8929 {
8930         int err;
8931         u16 pci_cmd;
8932
8933         if (!(tp->tg3_flags2 & TG3_FLG2_USING_MSI))
8934                 return 0;
8935
8936         /* Turn off SERR reporting in case MSI terminates with Master
8937          * Abort.
8938          */
8939         pci_read_config_word(tp->pdev, PCI_COMMAND, &pci_cmd);
8940         pci_write_config_word(tp->pdev, PCI_COMMAND,
8941                               pci_cmd & ~PCI_COMMAND_SERR);
8942
8943         err = tg3_test_interrupt(tp);
8944
8945         pci_write_config_word(tp->pdev, PCI_COMMAND, pci_cmd);
8946
8947         if (!err)
8948                 return 0;
8949
8950         /* other failures */
8951         if (err != -EIO)
8952                 return err;
8953
8954         /* MSI test failed, go back to INTx mode */
8955         netdev_warn(tp->dev, "No interrupt was generated using MSI. Switching "
8956                     "to INTx mode. Please report this failure to the PCI "
8957                     "maintainer and include system chipset information\n");
8958
8959         free_irq(tp->napi[0].irq_vec, &tp->napi[0]);
8960
8961         pci_disable_msi(tp->pdev);
8962
8963         tp->tg3_flags2 &= ~TG3_FLG2_USING_MSI;
8964         tp->napi[0].irq_vec = tp->pdev->irq;
8965
8966         err = tg3_request_irq(tp, 0);
8967         if (err)
8968                 return err;
8969
8970         /* Need to reset the chip because the MSI cycle may have terminated
8971          * with Master Abort.
8972          */
8973         tg3_full_lock(tp, 1);
8974
8975         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
8976         err = tg3_init_hw(tp, 1);
8977
8978         tg3_full_unlock(tp);
8979
8980         if (err)
8981                 free_irq(tp->napi[0].irq_vec, &tp->napi[0]);
8982
8983         return err;
8984 }
8985
8986 static int tg3_request_firmware(struct tg3 *tp)
8987 {
8988         const __be32 *fw_data;
8989
8990         if (request_firmware(&tp->fw, tp->fw_needed, &tp->pdev->dev)) {
8991                 netdev_err(tp->dev, "Failed to load firmware \"%s\"\n",
8992                            tp->fw_needed);
8993                 return -ENOENT;
8994         }
8995
8996         fw_data = (void *)tp->fw->data;
8997
8998         /* Firmware blob starts with version numbers, followed by
8999          * start address and _full_ length including BSS sections
9000          * (which must be longer than the actual data, of course
9001          */
9002
9003         tp->fw_len = be32_to_cpu(fw_data[2]);   /* includes bss */
9004         if (tp->fw_len < (tp->fw->size - 12)) {
9005                 netdev_err(tp->dev, "bogus length %d in \"%s\"\n",
9006                            tp->fw_len, tp->fw_needed);
9007                 release_firmware(tp->fw);
9008                 tp->fw = NULL;
9009                 return -EINVAL;
9010         }
9011
9012         /* We no longer need firmware; we have it. */
9013         tp->fw_needed = NULL;
9014         return 0;
9015 }
9016
9017 static bool tg3_enable_msix(struct tg3 *tp)
9018 {
9019         int i, rc, cpus = num_online_cpus();
9020         struct msix_entry msix_ent[tp->irq_max];
9021
9022         if (cpus == 1)
9023                 /* Just fallback to the simpler MSI mode. */
9024                 return false;
9025
9026         /*
9027          * We want as many rx rings enabled as there are cpus.
9028          * The first MSIX vector only deals with link interrupts, etc,
9029          * so we add one to the number of vectors we are requesting.
9030          */
9031         tp->irq_cnt = min_t(unsigned, cpus + 1, tp->irq_max);
9032
9033         for (i = 0; i < tp->irq_max; i++) {
9034                 msix_ent[i].entry  = i;
9035                 msix_ent[i].vector = 0;
9036         }
9037
9038         rc = pci_enable_msix(tp->pdev, msix_ent, tp->irq_cnt);
9039         if (rc < 0) {
9040                 return false;
9041         } else if (rc != 0) {
9042                 if (pci_enable_msix(tp->pdev, msix_ent, rc))
9043                         return false;
9044                 netdev_notice(tp->dev, "Requested %d MSI-X vectors, received %d\n",
9045                               tp->irq_cnt, rc);
9046                 tp->irq_cnt = rc;
9047         }
9048
9049         for (i = 0; i < tp->irq_max; i++)
9050                 tp->napi[i].irq_vec = msix_ent[i].vector;
9051
9052         netif_set_real_num_tx_queues(tp->dev, 1);
9053         rc = tp->irq_cnt > 1 ? tp->irq_cnt - 1 : 1;
9054         if (netif_set_real_num_rx_queues(tp->dev, rc)) {
9055                 pci_disable_msix(tp->pdev);
9056                 return false;
9057         }
9058
9059         if (tp->irq_cnt > 1) {
9060                 tp->tg3_flags3 |= TG3_FLG3_ENABLE_RSS;
9061                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719) {
9062                         tp->tg3_flags3 |= TG3_FLG3_ENABLE_TSS;
9063                         netif_set_real_num_tx_queues(tp->dev, tp->irq_cnt - 1);
9064                 }
9065         }
9066
9067         return true;
9068 }
9069
9070 static void tg3_ints_init(struct tg3 *tp)
9071 {
9072         if ((tp->tg3_flags & TG3_FLAG_SUPPORT_MSI_OR_MSIX) &&
9073             !(tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)) {
9074                 /* All MSI supporting chips should support tagged
9075                  * status.  Assert that this is the case.
9076                  */
9077                 netdev_warn(tp->dev,
9078                             "MSI without TAGGED_STATUS? Not using MSI\n");
9079                 goto defcfg;
9080         }
9081
9082         if ((tp->tg3_flags & TG3_FLAG_SUPPORT_MSIX) && tg3_enable_msix(tp))
9083                 tp->tg3_flags2 |= TG3_FLG2_USING_MSIX;
9084         else if ((tp->tg3_flags & TG3_FLAG_SUPPORT_MSI) &&
9085                  pci_enable_msi(tp->pdev) == 0)
9086                 tp->tg3_flags2 |= TG3_FLG2_USING_MSI;
9087
9088         if (tp->tg3_flags2 & TG3_FLG2_USING_MSI_OR_MSIX) {
9089                 u32 msi_mode = tr32(MSGINT_MODE);
9090                 if ((tp->tg3_flags2 & TG3_FLG2_USING_MSIX) &&
9091                     tp->irq_cnt > 1)
9092                         msi_mode |= MSGINT_MODE_MULTIVEC_EN;
9093                 tw32(MSGINT_MODE, msi_mode | MSGINT_MODE_ENABLE);
9094         }
9095 defcfg:
9096         if (!(tp->tg3_flags2 & TG3_FLG2_USING_MSIX)) {
9097                 tp->irq_cnt = 1;
9098                 tp->napi[0].irq_vec = tp->pdev->irq;
9099                 netif_set_real_num_tx_queues(tp->dev, 1);
9100                 netif_set_real_num_rx_queues(tp->dev, 1);
9101         }
9102 }
9103
9104 static void tg3_ints_fini(struct tg3 *tp)
9105 {
9106         if (tp->tg3_flags2 & TG3_FLG2_USING_MSIX)
9107                 pci_disable_msix(tp->pdev);
9108         else if (tp->tg3_flags2 & TG3_FLG2_USING_MSI)
9109                 pci_disable_msi(tp->pdev);
9110         tp->tg3_flags2 &= ~TG3_FLG2_USING_MSI_OR_MSIX;
9111         tp->tg3_flags3 &= ~(TG3_FLG3_ENABLE_RSS | TG3_FLG3_ENABLE_TSS);
9112 }
9113
9114 static int tg3_open(struct net_device *dev)
9115 {
9116         struct tg3 *tp = netdev_priv(dev);
9117         int i, err;
9118
9119         if (tp->fw_needed) {
9120                 err = tg3_request_firmware(tp);
9121                 if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0) {
9122                         if (err)
9123                                 return err;
9124                 } else if (err) {
9125                         netdev_warn(tp->dev, "TSO capability disabled\n");
9126                         tp->tg3_flags2 &= ~TG3_FLG2_TSO_CAPABLE;
9127                 } else if (!(tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE)) {
9128                         netdev_notice(tp->dev, "TSO capability restored\n");
9129                         tp->tg3_flags2 |= TG3_FLG2_TSO_CAPABLE;
9130                 }
9131         }
9132
9133         netif_carrier_off(tp->dev);
9134
9135         err = tg3_power_up(tp);
9136         if (err)
9137                 return err;
9138
9139         tg3_full_lock(tp, 0);
9140
9141         tg3_disable_ints(tp);
9142         tp->tg3_flags &= ~TG3_FLAG_INIT_COMPLETE;
9143
9144         tg3_full_unlock(tp);
9145
9146         /*
9147          * Setup interrupts first so we know how
9148          * many NAPI resources to allocate
9149          */
9150         tg3_ints_init(tp);
9151
9152         /* The placement of this call is tied
9153          * to the setup and use of Host TX descriptors.
9154          */
9155         err = tg3_alloc_consistent(tp);
9156         if (err)
9157                 goto err_out1;
9158
9159         tg3_napi_init(tp);
9160
9161         tg3_napi_enable(tp);
9162
9163         for (i = 0; i < tp->irq_cnt; i++) {
9164                 struct tg3_napi *tnapi = &tp->napi[i];
9165                 err = tg3_request_irq(tp, i);
9166                 if (err) {
9167                         for (i--; i >= 0; i--)
9168                                 free_irq(tnapi->irq_vec, tnapi);
9169                         break;
9170                 }
9171         }
9172
9173         if (err)
9174                 goto err_out2;
9175
9176         tg3_full_lock(tp, 0);
9177
9178         err = tg3_init_hw(tp, 1);
9179         if (err) {
9180                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
9181                 tg3_free_rings(tp);
9182         } else {
9183                 if (tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)
9184                         tp->timer_offset = HZ;
9185                 else
9186                         tp->timer_offset = HZ / 10;
9187
9188                 BUG_ON(tp->timer_offset > HZ);
9189                 tp->timer_counter = tp->timer_multiplier =
9190                         (HZ / tp->timer_offset);
9191                 tp->asf_counter = tp->asf_multiplier =
9192                         ((HZ / tp->timer_offset) * 2);
9193
9194                 init_timer(&tp->timer);
9195                 tp->timer.expires = jiffies + tp->timer_offset;
9196                 tp->timer.data = (unsigned long) tp;
9197                 tp->timer.function = tg3_timer;
9198         }
9199
9200         tg3_full_unlock(tp);
9201
9202         if (err)
9203                 goto err_out3;
9204
9205         if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
9206                 err = tg3_test_msi(tp);
9207
9208                 if (err) {
9209                         tg3_full_lock(tp, 0);
9210                         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
9211                         tg3_free_rings(tp);
9212                         tg3_full_unlock(tp);
9213
9214                         goto err_out2;
9215                 }
9216
9217                 if (!(tp->tg3_flags3 & TG3_FLG3_5717_PLUS) &&
9218                     (tp->tg3_flags2 & TG3_FLG2_USING_MSI)) {
9219                         u32 val = tr32(PCIE_TRANSACTION_CFG);
9220
9221                         tw32(PCIE_TRANSACTION_CFG,
9222                              val | PCIE_TRANS_CFG_1SHOT_MSI);
9223                 }
9224         }
9225
9226         tg3_phy_start(tp);
9227
9228         tg3_full_lock(tp, 0);
9229
9230         add_timer(&tp->timer);
9231         tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
9232         tg3_enable_ints(tp);
9233
9234         tg3_full_unlock(tp);
9235
9236         netif_tx_start_all_queues(dev);
9237
9238         return 0;
9239
9240 err_out3:
9241         for (i = tp->irq_cnt - 1; i >= 0; i--) {
9242                 struct tg3_napi *tnapi = &tp->napi[i];
9243                 free_irq(tnapi->irq_vec, tnapi);
9244         }
9245
9246 err_out2:
9247         tg3_napi_disable(tp);
9248         tg3_napi_fini(tp);
9249         tg3_free_consistent(tp);
9250
9251 err_out1:
9252         tg3_ints_fini(tp);
9253         return err;
9254 }
9255
9256 static struct rtnl_link_stats64 *tg3_get_stats64(struct net_device *,
9257                                                  struct rtnl_link_stats64 *);
9258 static struct tg3_ethtool_stats *tg3_get_estats(struct tg3 *);
9259
9260 static int tg3_close(struct net_device *dev)
9261 {
9262         int i;
9263         struct tg3 *tp = netdev_priv(dev);
9264
9265         tg3_napi_disable(tp);
9266         cancel_work_sync(&tp->reset_task);
9267
9268         netif_tx_stop_all_queues(dev);
9269
9270         del_timer_sync(&tp->timer);
9271
9272         tg3_phy_stop(tp);
9273
9274         tg3_full_lock(tp, 1);
9275
9276         tg3_disable_ints(tp);
9277
9278         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
9279         tg3_free_rings(tp);
9280         tp->tg3_flags &= ~TG3_FLAG_INIT_COMPLETE;
9281
9282         tg3_full_unlock(tp);
9283
9284         for (i = tp->irq_cnt - 1; i >= 0; i--) {
9285                 struct tg3_napi *tnapi = &tp->napi[i];
9286                 free_irq(tnapi->irq_vec, tnapi);
9287         }
9288
9289         tg3_ints_fini(tp);
9290
9291         tg3_get_stats64(tp->dev, &tp->net_stats_prev);
9292
9293         memcpy(&tp->estats_prev, tg3_get_estats(tp),
9294                sizeof(tp->estats_prev));
9295
9296         tg3_napi_fini(tp);
9297
9298         tg3_free_consistent(tp);
9299
9300         tg3_power_down(tp);
9301
9302         netif_carrier_off(tp->dev);
9303
9304         return 0;
9305 }
9306
9307 static inline u64 get_stat64(tg3_stat64_t *val)
9308 {
9309        return ((u64)val->high << 32) | ((u64)val->low);
9310 }
9311
9312 static u64 calc_crc_errors(struct tg3 *tp)
9313 {
9314         struct tg3_hw_stats *hw_stats = tp->hw_stats;
9315
9316         if (!(tp->phy_flags & TG3_PHYFLG_PHY_SERDES) &&
9317             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
9318              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)) {
9319                 u32 val;
9320
9321                 spin_lock_bh(&tp->lock);
9322                 if (!tg3_readphy(tp, MII_TG3_TEST1, &val)) {
9323                         tg3_writephy(tp, MII_TG3_TEST1,
9324                                      val | MII_TG3_TEST1_CRC_EN);
9325                         tg3_readphy(tp, MII_TG3_RXR_COUNTERS, &val);
9326                 } else
9327                         val = 0;
9328                 spin_unlock_bh(&tp->lock);
9329
9330                 tp->phy_crc_errors += val;
9331
9332                 return tp->phy_crc_errors;
9333         }
9334
9335         return get_stat64(&hw_stats->rx_fcs_errors);
9336 }
9337
9338 #define ESTAT_ADD(member) \
9339         estats->member =        old_estats->member + \
9340                                 get_stat64(&hw_stats->member)
9341
9342 static struct tg3_ethtool_stats *tg3_get_estats(struct tg3 *tp)
9343 {
9344         struct tg3_ethtool_stats *estats = &tp->estats;
9345         struct tg3_ethtool_stats *old_estats = &tp->estats_prev;
9346         struct tg3_hw_stats *hw_stats = tp->hw_stats;
9347
9348         if (!hw_stats)
9349                 return old_estats;
9350
9351         ESTAT_ADD(rx_octets);
9352         ESTAT_ADD(rx_fragments);
9353         ESTAT_ADD(rx_ucast_packets);
9354         ESTAT_ADD(rx_mcast_packets);
9355         ESTAT_ADD(rx_bcast_packets);
9356         ESTAT_ADD(rx_fcs_errors);
9357         ESTAT_ADD(rx_align_errors);
9358         ESTAT_ADD(rx_xon_pause_rcvd);
9359         ESTAT_ADD(rx_xoff_pause_rcvd);
9360         ESTAT_ADD(rx_mac_ctrl_rcvd);
9361         ESTAT_ADD(rx_xoff_entered);
9362         ESTAT_ADD(rx_frame_too_long_errors);
9363         ESTAT_ADD(rx_jabbers);
9364         ESTAT_ADD(rx_undersize_packets);
9365         ESTAT_ADD(rx_in_length_errors);
9366         ESTAT_ADD(rx_out_length_errors);
9367         ESTAT_ADD(rx_64_or_less_octet_packets);
9368         ESTAT_ADD(rx_65_to_127_octet_packets);
9369         ESTAT_ADD(rx_128_to_255_octet_packets);
9370         ESTAT_ADD(rx_256_to_511_octet_packets);
9371         ESTAT_ADD(rx_512_to_1023_octet_packets);
9372         ESTAT_ADD(rx_1024_to_1522_octet_packets);
9373         ESTAT_ADD(rx_1523_to_2047_octet_packets);
9374         ESTAT_ADD(rx_2048_to_4095_octet_packets);
9375         ESTAT_ADD(rx_4096_to_8191_octet_packets);
9376         ESTAT_ADD(rx_8192_to_9022_octet_packets);
9377
9378         ESTAT_ADD(tx_octets);
9379         ESTAT_ADD(tx_collisions);
9380         ESTAT_ADD(tx_xon_sent);
9381         ESTAT_ADD(tx_xoff_sent);
9382         ESTAT_ADD(tx_flow_control);
9383         ESTAT_ADD(tx_mac_errors);
9384         ESTAT_ADD(tx_single_collisions);
9385         ESTAT_ADD(tx_mult_collisions);
9386         ESTAT_ADD(tx_deferred);
9387         ESTAT_ADD(tx_excessive_collisions);
9388         ESTAT_ADD(tx_late_collisions);
9389         ESTAT_ADD(tx_collide_2times);
9390         ESTAT_ADD(tx_collide_3times);
9391         ESTAT_ADD(tx_collide_4times);
9392         ESTAT_ADD(tx_collide_5times);
9393         ESTAT_ADD(tx_collide_6times);
9394         ESTAT_ADD(tx_collide_7times);
9395         ESTAT_ADD(tx_collide_8times);
9396         ESTAT_ADD(tx_collide_9times);
9397         ESTAT_ADD(tx_collide_10times);
9398         ESTAT_ADD(tx_collide_11times);
9399         ESTAT_ADD(tx_collide_12times);
9400         ESTAT_ADD(tx_collide_13times);
9401         ESTAT_ADD(tx_collide_14times);
9402         ESTAT_ADD(tx_collide_15times);
9403         ESTAT_ADD(tx_ucast_packets);
9404         ESTAT_ADD(tx_mcast_packets);
9405         ESTAT_ADD(tx_bcast_packets);
9406         ESTAT_ADD(tx_carrier_sense_errors);
9407         ESTAT_ADD(tx_discards);
9408         ESTAT_ADD(tx_errors);
9409
9410         ESTAT_ADD(dma_writeq_full);
9411         ESTAT_ADD(dma_write_prioq_full);
9412         ESTAT_ADD(rxbds_empty);
9413         ESTAT_ADD(rx_discards);
9414         ESTAT_ADD(rx_errors);
9415         ESTAT_ADD(rx_threshold_hit);
9416
9417         ESTAT_ADD(dma_readq_full);
9418         ESTAT_ADD(dma_read_prioq_full);
9419         ESTAT_ADD(tx_comp_queue_full);
9420
9421         ESTAT_ADD(ring_set_send_prod_index);
9422         ESTAT_ADD(ring_status_update);
9423         ESTAT_ADD(nic_irqs);
9424         ESTAT_ADD(nic_avoided_irqs);
9425         ESTAT_ADD(nic_tx_threshold_hit);
9426
9427         return estats;
9428 }
9429
9430 static struct rtnl_link_stats64 *tg3_get_stats64(struct net_device *dev,
9431                                                  struct rtnl_link_stats64 *stats)
9432 {
9433         struct tg3 *tp = netdev_priv(dev);
9434         struct rtnl_link_stats64 *old_stats = &tp->net_stats_prev;
9435         struct tg3_hw_stats *hw_stats = tp->hw_stats;
9436
9437         if (!hw_stats)
9438                 return old_stats;
9439
9440         stats->rx_packets = old_stats->rx_packets +
9441                 get_stat64(&hw_stats->rx_ucast_packets) +
9442                 get_stat64(&hw_stats->rx_mcast_packets) +
9443                 get_stat64(&hw_stats->rx_bcast_packets);
9444
9445         stats->tx_packets = old_stats->tx_packets +
9446                 get_stat64(&hw_stats->tx_ucast_packets) +
9447                 get_stat64(&hw_stats->tx_mcast_packets) +
9448                 get_stat64(&hw_stats->tx_bcast_packets);
9449
9450         stats->rx_bytes = old_stats->rx_bytes +
9451                 get_stat64(&hw_stats->rx_octets);
9452         stats->tx_bytes = old_stats->tx_bytes +
9453                 get_stat64(&hw_stats->tx_octets);
9454
9455         stats->rx_errors = old_stats->rx_errors +
9456                 get_stat64(&hw_stats->rx_errors);
9457         stats->tx_errors = old_stats->tx_errors +
9458                 get_stat64(&hw_stats->tx_errors) +
9459                 get_stat64(&hw_stats->tx_mac_errors) +
9460                 get_stat64(&hw_stats->tx_carrier_sense_errors) +
9461                 get_stat64(&hw_stats->tx_discards);
9462
9463         stats->multicast = old_stats->multicast +
9464                 get_stat64(&hw_stats->rx_mcast_packets);
9465         stats->collisions = old_stats->collisions +
9466                 get_stat64(&hw_stats->tx_collisions);
9467
9468         stats->rx_length_errors = old_stats->rx_length_errors +
9469                 get_stat64(&hw_stats->rx_frame_too_long_errors) +
9470                 get_stat64(&hw_stats->rx_undersize_packets);
9471
9472         stats->rx_over_errors = old_stats->rx_over_errors +
9473                 get_stat64(&hw_stats->rxbds_empty);
9474         stats->rx_frame_errors = old_stats->rx_frame_errors +
9475                 get_stat64(&hw_stats->rx_align_errors);
9476         stats->tx_aborted_errors = old_stats->tx_aborted_errors +
9477                 get_stat64(&hw_stats->tx_discards);
9478         stats->tx_carrier_errors = old_stats->tx_carrier_errors +
9479                 get_stat64(&hw_stats->tx_carrier_sense_errors);
9480
9481         stats->rx_crc_errors = old_stats->rx_crc_errors +
9482                 calc_crc_errors(tp);
9483
9484         stats->rx_missed_errors = old_stats->rx_missed_errors +
9485                 get_stat64(&hw_stats->rx_discards);
9486
9487         stats->rx_dropped = tp->rx_dropped;
9488
9489         return stats;
9490 }
9491
9492 static inline u32 calc_crc(unsigned char *buf, int len)
9493 {
9494         u32 reg;
9495         u32 tmp;
9496         int j, k;
9497
9498         reg = 0xffffffff;
9499
9500         for (j = 0; j < len; j++) {
9501                 reg ^= buf[j];
9502
9503                 for (k = 0; k < 8; k++) {
9504                         tmp = reg & 0x01;
9505
9506                         reg >>= 1;
9507
9508                         if (tmp)
9509                                 reg ^= 0xedb88320;
9510                 }
9511         }
9512
9513         return ~reg;
9514 }
9515
9516 static void tg3_set_multi(struct tg3 *tp, unsigned int accept_all)
9517 {
9518         /* accept or reject all multicast frames */
9519         tw32(MAC_HASH_REG_0, accept_all ? 0xffffffff : 0);
9520         tw32(MAC_HASH_REG_1, accept_all ? 0xffffffff : 0);
9521         tw32(MAC_HASH_REG_2, accept_all ? 0xffffffff : 0);
9522         tw32(MAC_HASH_REG_3, accept_all ? 0xffffffff : 0);
9523 }
9524
9525 static void __tg3_set_rx_mode(struct net_device *dev)
9526 {
9527         struct tg3 *tp = netdev_priv(dev);
9528         u32 rx_mode;
9529
9530         rx_mode = tp->rx_mode & ~(RX_MODE_PROMISC |
9531                                   RX_MODE_KEEP_VLAN_TAG);
9532
9533 #if !defined(CONFIG_VLAN_8021Q) && !defined(CONFIG_VLAN_8021Q_MODULE)
9534         /* When ASF is in use, we always keep the RX_MODE_KEEP_VLAN_TAG
9535          * flag clear.
9536          */
9537         if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF))
9538                 rx_mode |= RX_MODE_KEEP_VLAN_TAG;
9539 #endif
9540
9541         if (dev->flags & IFF_PROMISC) {
9542                 /* Promiscuous mode. */
9543                 rx_mode |= RX_MODE_PROMISC;
9544         } else if (dev->flags & IFF_ALLMULTI) {
9545                 /* Accept all multicast. */
9546                 tg3_set_multi(tp, 1);
9547         } else if (netdev_mc_empty(dev)) {
9548                 /* Reject all multicast. */
9549                 tg3_set_multi(tp, 0);
9550         } else {
9551                 /* Accept one or more multicast(s). */
9552                 struct netdev_hw_addr *ha;
9553                 u32 mc_filter[4] = { 0, };
9554                 u32 regidx;
9555                 u32 bit;
9556                 u32 crc;
9557
9558                 netdev_for_each_mc_addr(ha, dev) {
9559                         crc = calc_crc(ha->addr, ETH_ALEN);
9560                         bit = ~crc & 0x7f;
9561                         regidx = (bit & 0x60) >> 5;
9562                         bit &= 0x1f;
9563                         mc_filter[regidx] |= (1 << bit);
9564                 }
9565
9566                 tw32(MAC_HASH_REG_0, mc_filter[0]);
9567                 tw32(MAC_HASH_REG_1, mc_filter[1]);
9568                 tw32(MAC_HASH_REG_2, mc_filter[2]);
9569                 tw32(MAC_HASH_REG_3, mc_filter[3]);
9570         }
9571
9572         if (rx_mode != tp->rx_mode) {
9573                 tp->rx_mode = rx_mode;
9574                 tw32_f(MAC_RX_MODE, rx_mode);
9575                 udelay(10);
9576         }
9577 }
9578
9579 static void tg3_set_rx_mode(struct net_device *dev)
9580 {
9581         struct tg3 *tp = netdev_priv(dev);
9582
9583         if (!netif_running(dev))
9584                 return;
9585
9586         tg3_full_lock(tp, 0);
9587         __tg3_set_rx_mode(dev);
9588         tg3_full_unlock(tp);
9589 }
9590
9591 #define TG3_REGDUMP_LEN         (32 * 1024)
9592
9593 static int tg3_get_regs_len(struct net_device *dev)
9594 {
9595         return TG3_REGDUMP_LEN;
9596 }
9597
9598 static void tg3_get_regs(struct net_device *dev,
9599                 struct ethtool_regs *regs, void *_p)
9600 {
9601         u32 *p = _p;
9602         struct tg3 *tp = netdev_priv(dev);
9603         u8 *orig_p = _p;
9604         int i;
9605
9606         regs->version = 0;
9607
9608         memset(p, 0, TG3_REGDUMP_LEN);
9609
9610         if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)
9611                 return;
9612
9613         tg3_full_lock(tp, 0);
9614
9615 #define __GET_REG32(reg)        (*(p)++ = tr32(reg))
9616 #define GET_REG32_LOOP(base, len)               \
9617 do {    p = (u32 *)(orig_p + (base));           \
9618         for (i = 0; i < len; i += 4)            \
9619                 __GET_REG32((base) + i);        \
9620 } while (0)
9621 #define GET_REG32_1(reg)                        \
9622 do {    p = (u32 *)(orig_p + (reg));            \
9623         __GET_REG32((reg));                     \
9624 } while (0)
9625
9626         GET_REG32_LOOP(TG3PCI_VENDOR, 0xb0);
9627         GET_REG32_LOOP(MAILBOX_INTERRUPT_0, 0x200);
9628         GET_REG32_LOOP(MAC_MODE, 0x4f0);
9629         GET_REG32_LOOP(SNDDATAI_MODE, 0xe0);
9630         GET_REG32_1(SNDDATAC_MODE);
9631         GET_REG32_LOOP(SNDBDS_MODE, 0x80);
9632         GET_REG32_LOOP(SNDBDI_MODE, 0x48);
9633         GET_REG32_1(SNDBDC_MODE);
9634         GET_REG32_LOOP(RCVLPC_MODE, 0x20);
9635         GET_REG32_LOOP(RCVLPC_SELLST_BASE, 0x15c);
9636         GET_REG32_LOOP(RCVDBDI_MODE, 0x0c);
9637         GET_REG32_LOOP(RCVDBDI_JUMBO_BD, 0x3c);
9638         GET_REG32_LOOP(RCVDBDI_BD_PROD_IDX_0, 0x44);
9639         GET_REG32_1(RCVDCC_MODE);
9640         GET_REG32_LOOP(RCVBDI_MODE, 0x20);
9641         GET_REG32_LOOP(RCVCC_MODE, 0x14);
9642         GET_REG32_LOOP(RCVLSC_MODE, 0x08);
9643         GET_REG32_1(MBFREE_MODE);
9644         GET_REG32_LOOP(HOSTCC_MODE, 0x100);
9645         GET_REG32_LOOP(MEMARB_MODE, 0x10);
9646         GET_REG32_LOOP(BUFMGR_MODE, 0x58);
9647         GET_REG32_LOOP(RDMAC_MODE, 0x08);
9648         GET_REG32_LOOP(WDMAC_MODE, 0x08);
9649         GET_REG32_1(RX_CPU_MODE);
9650         GET_REG32_1(RX_CPU_STATE);
9651         GET_REG32_1(RX_CPU_PGMCTR);
9652         GET_REG32_1(RX_CPU_HWBKPT);
9653         GET_REG32_1(TX_CPU_MODE);
9654         GET_REG32_1(TX_CPU_STATE);
9655         GET_REG32_1(TX_CPU_PGMCTR);
9656         GET_REG32_LOOP(GRCMBOX_INTERRUPT_0, 0x110);
9657         GET_REG32_LOOP(FTQ_RESET, 0x120);
9658         GET_REG32_LOOP(MSGINT_MODE, 0x0c);
9659         GET_REG32_1(DMAC_MODE);
9660         GET_REG32_LOOP(GRC_MODE, 0x4c);
9661         if (tp->tg3_flags & TG3_FLAG_NVRAM)
9662                 GET_REG32_LOOP(NVRAM_CMD, 0x24);
9663
9664 #undef __GET_REG32
9665 #undef GET_REG32_LOOP
9666 #undef GET_REG32_1
9667
9668         tg3_full_unlock(tp);
9669 }
9670
9671 static int tg3_get_eeprom_len(struct net_device *dev)
9672 {
9673         struct tg3 *tp = netdev_priv(dev);
9674
9675         return tp->nvram_size;
9676 }
9677
9678 static int tg3_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, u8 *data)
9679 {
9680         struct tg3 *tp = netdev_priv(dev);
9681         int ret;
9682         u8  *pd;
9683         u32 i, offset, len, b_offset, b_count;
9684         __be32 val;
9685
9686         if (tp->tg3_flags3 & TG3_FLG3_NO_NVRAM)
9687                 return -EINVAL;
9688
9689         if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)
9690                 return -EAGAIN;
9691
9692         offset = eeprom->offset;
9693         len = eeprom->len;
9694         eeprom->len = 0;
9695
9696         eeprom->magic = TG3_EEPROM_MAGIC;
9697
9698         if (offset & 3) {
9699                 /* adjustments to start on required 4 byte boundary */
9700                 b_offset = offset & 3;
9701                 b_count = 4 - b_offset;
9702                 if (b_count > len) {
9703                         /* i.e. offset=1 len=2 */
9704                         b_count = len;
9705                 }
9706                 ret = tg3_nvram_read_be32(tp, offset-b_offset, &val);
9707                 if (ret)
9708                         return ret;
9709                 memcpy(data, ((char *)&val) + b_offset, b_count);
9710                 len -= b_count;
9711                 offset += b_count;
9712                 eeprom->len += b_count;
9713         }
9714
9715         /* read bytes up to the last 4 byte boundary */
9716         pd = &data[eeprom->len];
9717         for (i = 0; i < (len - (len & 3)); i += 4) {
9718                 ret = tg3_nvram_read_be32(tp, offset + i, &val);
9719                 if (ret) {
9720                         eeprom->len += i;
9721                         return ret;
9722                 }
9723                 memcpy(pd + i, &val, 4);
9724         }
9725         eeprom->len += i;
9726
9727         if (len & 3) {
9728                 /* read last bytes not ending on 4 byte boundary */
9729                 pd = &data[eeprom->len];
9730                 b_count = len & 3;
9731                 b_offset = offset + len - b_count;
9732                 ret = tg3_nvram_read_be32(tp, b_offset, &val);
9733                 if (ret)
9734                         return ret;
9735                 memcpy(pd, &val, b_count);
9736                 eeprom->len += b_count;
9737         }
9738         return 0;
9739 }
9740
9741 static int tg3_nvram_write_block(struct tg3 *tp, u32 offset, u32 len, u8 *buf);
9742
9743 static int tg3_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, u8 *data)
9744 {
9745         struct tg3 *tp = netdev_priv(dev);
9746         int ret;
9747         u32 offset, len, b_offset, odd_len;
9748         u8 *buf;
9749         __be32 start, end;
9750
9751         if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)
9752                 return -EAGAIN;
9753
9754         if ((tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) ||
9755             eeprom->magic != TG3_EEPROM_MAGIC)
9756                 return -EINVAL;
9757
9758         offset = eeprom->offset;
9759         len = eeprom->len;
9760
9761         if ((b_offset = (offset & 3))) {
9762                 /* adjustments to start on required 4 byte boundary */
9763                 ret = tg3_nvram_read_be32(tp, offset-b_offset, &start);
9764                 if (ret)
9765                         return ret;
9766                 len += b_offset;
9767                 offset &= ~3;
9768                 if (len < 4)
9769                         len = 4;
9770         }
9771
9772         odd_len = 0;
9773         if (len & 3) {
9774                 /* adjustments to end on required 4 byte boundary */
9775                 odd_len = 1;
9776                 len = (len + 3) & ~3;
9777                 ret = tg3_nvram_read_be32(tp, offset+len-4, &end);
9778                 if (ret)
9779                         return ret;
9780         }
9781
9782         buf = data;
9783         if (b_offset || odd_len) {
9784                 buf = kmalloc(len, GFP_KERNEL);
9785                 if (!buf)
9786                         return -ENOMEM;
9787                 if (b_offset)
9788                         memcpy(buf, &start, 4);
9789                 if (odd_len)
9790                         memcpy(buf+len-4, &end, 4);
9791                 memcpy(buf + b_offset, data, eeprom->len);
9792         }
9793
9794         ret = tg3_nvram_write_block(tp, offset, len, buf);
9795
9796         if (buf != data)
9797                 kfree(buf);
9798
9799         return ret;
9800 }
9801
9802 static int tg3_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
9803 {
9804         struct tg3 *tp = netdev_priv(dev);
9805
9806         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
9807                 struct phy_device *phydev;
9808                 if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
9809                         return -EAGAIN;
9810                 phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
9811                 return phy_ethtool_gset(phydev, cmd);
9812         }
9813
9814         cmd->supported = (SUPPORTED_Autoneg);
9815
9816         if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY))
9817                 cmd->supported |= (SUPPORTED_1000baseT_Half |
9818                                    SUPPORTED_1000baseT_Full);
9819
9820         if (!(tp->phy_flags & TG3_PHYFLG_ANY_SERDES)) {
9821                 cmd->supported |= (SUPPORTED_100baseT_Half |
9822                                   SUPPORTED_100baseT_Full |
9823                                   SUPPORTED_10baseT_Half |
9824                                   SUPPORTED_10baseT_Full |
9825                                   SUPPORTED_TP);
9826                 cmd->port = PORT_TP;
9827         } else {
9828                 cmd->supported |= SUPPORTED_FIBRE;
9829                 cmd->port = PORT_FIBRE;
9830         }
9831
9832         cmd->advertising = tp->link_config.advertising;
9833         if (netif_running(dev)) {
9834                 cmd->speed = tp->link_config.active_speed;
9835                 cmd->duplex = tp->link_config.active_duplex;
9836         } else {
9837                 cmd->speed = SPEED_INVALID;
9838                 cmd->duplex = DUPLEX_INVALID;
9839         }
9840         cmd->phy_address = tp->phy_addr;
9841         cmd->transceiver = XCVR_INTERNAL;
9842         cmd->autoneg = tp->link_config.autoneg;
9843         cmd->maxtxpkt = 0;
9844         cmd->maxrxpkt = 0;
9845         return 0;
9846 }
9847
9848 static int tg3_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
9849 {
9850         struct tg3 *tp = netdev_priv(dev);
9851
9852         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
9853                 struct phy_device *phydev;
9854                 if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
9855                         return -EAGAIN;
9856                 phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
9857                 return phy_ethtool_sset(phydev, cmd);
9858         }
9859
9860         if (cmd->autoneg != AUTONEG_ENABLE &&
9861             cmd->autoneg != AUTONEG_DISABLE)
9862                 return -EINVAL;
9863
9864         if (cmd->autoneg == AUTONEG_DISABLE &&
9865             cmd->duplex != DUPLEX_FULL &&
9866             cmd->duplex != DUPLEX_HALF)
9867                 return -EINVAL;
9868
9869         if (cmd->autoneg == AUTONEG_ENABLE) {
9870                 u32 mask = ADVERTISED_Autoneg |
9871                            ADVERTISED_Pause |
9872                            ADVERTISED_Asym_Pause;
9873
9874                 if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY))
9875                         mask |= ADVERTISED_1000baseT_Half |
9876                                 ADVERTISED_1000baseT_Full;
9877
9878                 if (!(tp->phy_flags & TG3_PHYFLG_ANY_SERDES))
9879                         mask |= ADVERTISED_100baseT_Half |
9880                                 ADVERTISED_100baseT_Full |
9881                                 ADVERTISED_10baseT_Half |
9882                                 ADVERTISED_10baseT_Full |
9883                                 ADVERTISED_TP;
9884                 else
9885                         mask |= ADVERTISED_FIBRE;
9886
9887                 if (cmd->advertising & ~mask)
9888                         return -EINVAL;
9889
9890                 mask &= (ADVERTISED_1000baseT_Half |
9891                          ADVERTISED_1000baseT_Full |
9892                          ADVERTISED_100baseT_Half |
9893                          ADVERTISED_100baseT_Full |
9894                          ADVERTISED_10baseT_Half |
9895                          ADVERTISED_10baseT_Full);
9896
9897                 cmd->advertising &= mask;
9898         } else {
9899                 if (tp->phy_flags & TG3_PHYFLG_ANY_SERDES) {
9900                         if (cmd->speed != SPEED_1000)
9901                                 return -EINVAL;
9902
9903                         if (cmd->duplex != DUPLEX_FULL)
9904                                 return -EINVAL;
9905                 } else {
9906                         if (cmd->speed != SPEED_100 &&
9907                             cmd->speed != SPEED_10)
9908                                 return -EINVAL;
9909                 }
9910         }
9911
9912         tg3_full_lock(tp, 0);
9913
9914         tp->link_config.autoneg = cmd->autoneg;
9915         if (cmd->autoneg == AUTONEG_ENABLE) {
9916                 tp->link_config.advertising = (cmd->advertising |
9917                                               ADVERTISED_Autoneg);
9918                 tp->link_config.speed = SPEED_INVALID;
9919                 tp->link_config.duplex = DUPLEX_INVALID;
9920         } else {
9921                 tp->link_config.advertising = 0;
9922                 tp->link_config.speed = cmd->speed;
9923                 tp->link_config.duplex = cmd->duplex;
9924         }
9925
9926         tp->link_config.orig_speed = tp->link_config.speed;
9927         tp->link_config.orig_duplex = tp->link_config.duplex;
9928         tp->link_config.orig_autoneg = tp->link_config.autoneg;
9929
9930         if (netif_running(dev))
9931                 tg3_setup_phy(tp, 1);
9932
9933         tg3_full_unlock(tp);
9934
9935         return 0;
9936 }
9937
9938 static void tg3_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
9939 {
9940         struct tg3 *tp = netdev_priv(dev);
9941
9942         strcpy(info->driver, DRV_MODULE_NAME);
9943         strcpy(info->version, DRV_MODULE_VERSION);
9944         strcpy(info->fw_version, tp->fw_ver);
9945         strcpy(info->bus_info, pci_name(tp->pdev));
9946 }
9947
9948 static void tg3_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
9949 {
9950         struct tg3 *tp = netdev_priv(dev);
9951
9952         if ((tp->tg3_flags & TG3_FLAG_WOL_CAP) &&
9953             device_can_wakeup(&tp->pdev->dev))
9954                 wol->supported = WAKE_MAGIC;
9955         else
9956                 wol->supported = 0;
9957         wol->wolopts = 0;
9958         if ((tp->tg3_flags & TG3_FLAG_WOL_ENABLE) &&
9959             device_can_wakeup(&tp->pdev->dev))
9960                 wol->wolopts = WAKE_MAGIC;
9961         memset(&wol->sopass, 0, sizeof(wol->sopass));
9962 }
9963
9964 static int tg3_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
9965 {
9966         struct tg3 *tp = netdev_priv(dev);
9967         struct device *dp = &tp->pdev->dev;
9968
9969         if (wol->wolopts & ~WAKE_MAGIC)
9970                 return -EINVAL;
9971         if ((wol->wolopts & WAKE_MAGIC) &&
9972             !((tp->tg3_flags & TG3_FLAG_WOL_CAP) && device_can_wakeup(dp)))
9973                 return -EINVAL;
9974
9975         device_set_wakeup_enable(dp, wol->wolopts & WAKE_MAGIC);
9976
9977         spin_lock_bh(&tp->lock);
9978         if (device_may_wakeup(dp))
9979                 tp->tg3_flags |= TG3_FLAG_WOL_ENABLE;
9980         else
9981                 tp->tg3_flags &= ~TG3_FLAG_WOL_ENABLE;
9982         spin_unlock_bh(&tp->lock);
9983
9984
9985         return 0;
9986 }
9987
9988 static u32 tg3_get_msglevel(struct net_device *dev)
9989 {
9990         struct tg3 *tp = netdev_priv(dev);
9991         return tp->msg_enable;
9992 }
9993
9994 static void tg3_set_msglevel(struct net_device *dev, u32 value)
9995 {
9996         struct tg3 *tp = netdev_priv(dev);
9997         tp->msg_enable = value;
9998 }
9999
10000 static int tg3_set_tso(struct net_device *dev, u32 value)
10001 {
10002         struct tg3 *tp = netdev_priv(dev);
10003
10004         if (!(tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE)) {
10005                 if (value)
10006                         return -EINVAL;
10007                 return 0;
10008         }
10009         if ((dev->features & NETIF_F_IPV6_CSUM) &&
10010             ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_2) ||
10011              (tp->tg3_flags2 & TG3_FLG2_HW_TSO_3))) {
10012                 if (value) {
10013                         dev->features |= NETIF_F_TSO6;
10014                         if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_3) ||
10015                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
10016                             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
10017                              GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) ||
10018                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
10019                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
10020                                 dev->features |= NETIF_F_TSO_ECN;
10021                 } else
10022                         dev->features &= ~(NETIF_F_TSO6 | NETIF_F_TSO_ECN);
10023         }
10024         return ethtool_op_set_tso(dev, value);
10025 }
10026
10027 static int tg3_nway_reset(struct net_device *dev)
10028 {
10029         struct tg3 *tp = netdev_priv(dev);
10030         int r;
10031
10032         if (!netif_running(dev))
10033                 return -EAGAIN;
10034
10035         if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES)
10036                 return -EINVAL;
10037
10038         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
10039                 if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
10040                         return -EAGAIN;
10041                 r = phy_start_aneg(tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR]);
10042         } else {
10043                 u32 bmcr;
10044
10045                 spin_lock_bh(&tp->lock);
10046                 r = -EINVAL;
10047                 tg3_readphy(tp, MII_BMCR, &bmcr);
10048                 if (!tg3_readphy(tp, MII_BMCR, &bmcr) &&
10049                     ((bmcr & BMCR_ANENABLE) ||
10050                      (tp->phy_flags & TG3_PHYFLG_PARALLEL_DETECT))) {
10051                         tg3_writephy(tp, MII_BMCR, bmcr | BMCR_ANRESTART |
10052                                                    BMCR_ANENABLE);
10053                         r = 0;
10054                 }
10055                 spin_unlock_bh(&tp->lock);
10056         }
10057
10058         return r;
10059 }
10060
10061 static void tg3_get_ringparam(struct net_device *dev, struct ethtool_ringparam *ering)
10062 {
10063         struct tg3 *tp = netdev_priv(dev);
10064
10065         ering->rx_max_pending = tp->rx_std_ring_mask;
10066         ering->rx_mini_max_pending = 0;
10067         if (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE)
10068                 ering->rx_jumbo_max_pending = tp->rx_jmb_ring_mask;
10069         else
10070                 ering->rx_jumbo_max_pending = 0;
10071
10072         ering->tx_max_pending = TG3_TX_RING_SIZE - 1;
10073
10074         ering->rx_pending = tp->rx_pending;
10075         ering->rx_mini_pending = 0;
10076         if (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE)
10077                 ering->rx_jumbo_pending = tp->rx_jumbo_pending;
10078         else
10079                 ering->rx_jumbo_pending = 0;
10080
10081         ering->tx_pending = tp->napi[0].tx_pending;
10082 }
10083
10084 static int tg3_set_ringparam(struct net_device *dev, struct ethtool_ringparam *ering)
10085 {
10086         struct tg3 *tp = netdev_priv(dev);
10087         int i, irq_sync = 0, err = 0;
10088
10089         if ((ering->rx_pending > tp->rx_std_ring_mask) ||
10090             (ering->rx_jumbo_pending > tp->rx_jmb_ring_mask) ||
10091             (ering->tx_pending > TG3_TX_RING_SIZE - 1) ||
10092             (ering->tx_pending <= MAX_SKB_FRAGS) ||
10093             ((tp->tg3_flags2 & TG3_FLG2_TSO_BUG) &&
10094              (ering->tx_pending <= (MAX_SKB_FRAGS * 3))))
10095                 return -EINVAL;
10096
10097         if (netif_running(dev)) {
10098                 tg3_phy_stop(tp);
10099                 tg3_netif_stop(tp);
10100                 irq_sync = 1;
10101         }
10102
10103         tg3_full_lock(tp, irq_sync);
10104
10105         tp->rx_pending = ering->rx_pending;
10106
10107         if ((tp->tg3_flags2 & TG3_FLG2_MAX_RXPEND_64) &&
10108             tp->rx_pending > 63)
10109                 tp->rx_pending = 63;
10110         tp->rx_jumbo_pending = ering->rx_jumbo_pending;
10111
10112         for (i = 0; i < tp->irq_max; i++)
10113                 tp->napi[i].tx_pending = ering->tx_pending;
10114
10115         if (netif_running(dev)) {
10116                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
10117                 err = tg3_restart_hw(tp, 1);
10118                 if (!err)
10119                         tg3_netif_start(tp);
10120         }
10121
10122         tg3_full_unlock(tp);
10123
10124         if (irq_sync && !err)
10125                 tg3_phy_start(tp);
10126
10127         return err;
10128 }
10129
10130 static void tg3_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause)
10131 {
10132         struct tg3 *tp = netdev_priv(dev);
10133
10134         epause->autoneg = (tp->tg3_flags & TG3_FLAG_PAUSE_AUTONEG) != 0;
10135
10136         if (tp->link_config.active_flowctrl & FLOW_CTRL_RX)
10137                 epause->rx_pause = 1;
10138         else
10139                 epause->rx_pause = 0;
10140
10141         if (tp->link_config.active_flowctrl & FLOW_CTRL_TX)
10142                 epause->tx_pause = 1;
10143         else
10144                 epause->tx_pause = 0;
10145 }
10146
10147 static int tg3_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause)
10148 {
10149         struct tg3 *tp = netdev_priv(dev);
10150         int err = 0;
10151
10152         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
10153                 u32 newadv;
10154                 struct phy_device *phydev;
10155
10156                 phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
10157
10158                 if (!(phydev->supported & SUPPORTED_Pause) ||
10159                     (!(phydev->supported & SUPPORTED_Asym_Pause) &&
10160                      (epause->rx_pause != epause->tx_pause)))
10161                         return -EINVAL;
10162
10163                 tp->link_config.flowctrl = 0;
10164                 if (epause->rx_pause) {
10165                         tp->link_config.flowctrl |= FLOW_CTRL_RX;
10166
10167                         if (epause->tx_pause) {
10168                                 tp->link_config.flowctrl |= FLOW_CTRL_TX;
10169                                 newadv = ADVERTISED_Pause;
10170                         } else
10171                                 newadv = ADVERTISED_Pause |
10172                                          ADVERTISED_Asym_Pause;
10173                 } else if (epause->tx_pause) {
10174                         tp->link_config.flowctrl |= FLOW_CTRL_TX;
10175                         newadv = ADVERTISED_Asym_Pause;
10176                 } else
10177                         newadv = 0;
10178
10179                 if (epause->autoneg)
10180                         tp->tg3_flags |= TG3_FLAG_PAUSE_AUTONEG;
10181                 else
10182                         tp->tg3_flags &= ~TG3_FLAG_PAUSE_AUTONEG;
10183
10184                 if (tp->phy_flags & TG3_PHYFLG_IS_CONNECTED) {
10185                         u32 oldadv = phydev->advertising &
10186                                      (ADVERTISED_Pause | ADVERTISED_Asym_Pause);
10187                         if (oldadv != newadv) {
10188                                 phydev->advertising &=
10189                                         ~(ADVERTISED_Pause |
10190                                           ADVERTISED_Asym_Pause);
10191                                 phydev->advertising |= newadv;
10192                                 if (phydev->autoneg) {
10193                                         /*
10194                                          * Always renegotiate the link to
10195                                          * inform our link partner of our
10196                                          * flow control settings, even if the
10197                                          * flow control is forced.  Let
10198                                          * tg3_adjust_link() do the final
10199                                          * flow control setup.
10200                                          */
10201                                         return phy_start_aneg(phydev);
10202                                 }
10203                         }
10204
10205                         if (!epause->autoneg)
10206                                 tg3_setup_flow_control(tp, 0, 0);
10207                 } else {
10208                         tp->link_config.orig_advertising &=
10209                                         ~(ADVERTISED_Pause |
10210                                           ADVERTISED_Asym_Pause);
10211                         tp->link_config.orig_advertising |= newadv;
10212                 }
10213         } else {
10214                 int irq_sync = 0;
10215
10216                 if (netif_running(dev)) {
10217                         tg3_netif_stop(tp);
10218                         irq_sync = 1;
10219                 }
10220
10221                 tg3_full_lock(tp, irq_sync);
10222
10223                 if (epause->autoneg)
10224                         tp->tg3_flags |= TG3_FLAG_PAUSE_AUTONEG;
10225                 else
10226                         tp->tg3_flags &= ~TG3_FLAG_PAUSE_AUTONEG;
10227                 if (epause->rx_pause)
10228                         tp->link_config.flowctrl |= FLOW_CTRL_RX;
10229                 else
10230                         tp->link_config.flowctrl &= ~FLOW_CTRL_RX;
10231                 if (epause->tx_pause)
10232                         tp->link_config.flowctrl |= FLOW_CTRL_TX;
10233                 else
10234                         tp->link_config.flowctrl &= ~FLOW_CTRL_TX;
10235
10236                 if (netif_running(dev)) {
10237                         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
10238                         err = tg3_restart_hw(tp, 1);
10239                         if (!err)
10240                                 tg3_netif_start(tp);
10241                 }
10242
10243                 tg3_full_unlock(tp);
10244         }
10245
10246         return err;
10247 }
10248
10249 static u32 tg3_get_rx_csum(struct net_device *dev)
10250 {
10251         struct tg3 *tp = netdev_priv(dev);
10252         return (tp->tg3_flags & TG3_FLAG_RX_CHECKSUMS) != 0;
10253 }
10254
10255 static int tg3_set_rx_csum(struct net_device *dev, u32 data)
10256 {
10257         struct tg3 *tp = netdev_priv(dev);
10258
10259         if (tp->tg3_flags & TG3_FLAG_BROKEN_CHECKSUMS) {
10260                 if (data != 0)
10261                         return -EINVAL;
10262                 return 0;
10263         }
10264
10265         spin_lock_bh(&tp->lock);
10266         if (data)
10267                 tp->tg3_flags |= TG3_FLAG_RX_CHECKSUMS;
10268         else
10269                 tp->tg3_flags &= ~TG3_FLAG_RX_CHECKSUMS;
10270         spin_unlock_bh(&tp->lock);
10271
10272         return 0;
10273 }
10274
10275 static int tg3_set_tx_csum(struct net_device *dev, u32 data)
10276 {
10277         struct tg3 *tp = netdev_priv(dev);
10278
10279         if (tp->tg3_flags & TG3_FLAG_BROKEN_CHECKSUMS) {
10280                 if (data != 0)
10281                         return -EINVAL;
10282                 return 0;
10283         }
10284
10285         if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
10286                 ethtool_op_set_tx_ipv6_csum(dev, data);
10287         else
10288                 ethtool_op_set_tx_csum(dev, data);
10289
10290         return 0;
10291 }
10292
10293 static int tg3_get_sset_count(struct net_device *dev, int sset)
10294 {
10295         switch (sset) {
10296         case ETH_SS_TEST:
10297                 return TG3_NUM_TEST;
10298         case ETH_SS_STATS:
10299                 return TG3_NUM_STATS;
10300         default:
10301                 return -EOPNOTSUPP;
10302         }
10303 }
10304
10305 static void tg3_get_strings(struct net_device *dev, u32 stringset, u8 *buf)
10306 {
10307         switch (stringset) {
10308         case ETH_SS_STATS:
10309                 memcpy(buf, &ethtool_stats_keys, sizeof(ethtool_stats_keys));
10310                 break;
10311         case ETH_SS_TEST:
10312                 memcpy(buf, &ethtool_test_keys, sizeof(ethtool_test_keys));
10313                 break;
10314         default:
10315                 WARN_ON(1);     /* we need a WARN() */
10316                 break;
10317         }
10318 }
10319
10320 static int tg3_phys_id(struct net_device *dev, u32 data)
10321 {
10322         struct tg3 *tp = netdev_priv(dev);
10323         int i;
10324
10325         if (!netif_running(tp->dev))
10326                 return -EAGAIN;
10327
10328         if (data == 0)
10329                 data = UINT_MAX / 2;
10330
10331         for (i = 0; i < (data * 2); i++) {
10332                 if ((i % 2) == 0)
10333                         tw32(MAC_LED_CTRL, LED_CTRL_LNKLED_OVERRIDE |
10334                                            LED_CTRL_1000MBPS_ON |
10335                                            LED_CTRL_100MBPS_ON |
10336                                            LED_CTRL_10MBPS_ON |
10337                                            LED_CTRL_TRAFFIC_OVERRIDE |
10338                                            LED_CTRL_TRAFFIC_BLINK |
10339                                            LED_CTRL_TRAFFIC_LED);
10340
10341                 else
10342                         tw32(MAC_LED_CTRL, LED_CTRL_LNKLED_OVERRIDE |
10343                                            LED_CTRL_TRAFFIC_OVERRIDE);
10344
10345                 if (msleep_interruptible(500))
10346                         break;
10347         }
10348         tw32(MAC_LED_CTRL, tp->led_ctrl);
10349         return 0;
10350 }
10351
10352 static void tg3_get_ethtool_stats(struct net_device *dev,
10353                                    struct ethtool_stats *estats, u64 *tmp_stats)
10354 {
10355         struct tg3 *tp = netdev_priv(dev);
10356         memcpy(tmp_stats, tg3_get_estats(tp), sizeof(tp->estats));
10357 }
10358
10359 #define NVRAM_TEST_SIZE 0x100
10360 #define NVRAM_SELFBOOT_FORMAT1_0_SIZE   0x14
10361 #define NVRAM_SELFBOOT_FORMAT1_2_SIZE   0x18
10362 #define NVRAM_SELFBOOT_FORMAT1_3_SIZE   0x1c
10363 #define NVRAM_SELFBOOT_HW_SIZE 0x20
10364 #define NVRAM_SELFBOOT_DATA_SIZE 0x1c
10365
10366 static int tg3_test_nvram(struct tg3 *tp)
10367 {
10368         u32 csum, magic;
10369         __be32 *buf;
10370         int i, j, k, err = 0, size;
10371
10372         if (tp->tg3_flags3 & TG3_FLG3_NO_NVRAM)
10373                 return 0;
10374
10375         if (tg3_nvram_read(tp, 0, &magic) != 0)
10376                 return -EIO;
10377
10378         if (magic == TG3_EEPROM_MAGIC)
10379                 size = NVRAM_TEST_SIZE;
10380         else if ((magic & TG3_EEPROM_MAGIC_FW_MSK) == TG3_EEPROM_MAGIC_FW) {
10381                 if ((magic & TG3_EEPROM_SB_FORMAT_MASK) ==
10382                     TG3_EEPROM_SB_FORMAT_1) {
10383                         switch (magic & TG3_EEPROM_SB_REVISION_MASK) {
10384                         case TG3_EEPROM_SB_REVISION_0:
10385                                 size = NVRAM_SELFBOOT_FORMAT1_0_SIZE;
10386                                 break;
10387                         case TG3_EEPROM_SB_REVISION_2:
10388                                 size = NVRAM_SELFBOOT_FORMAT1_2_SIZE;
10389                                 break;
10390                         case TG3_EEPROM_SB_REVISION_3:
10391                                 size = NVRAM_SELFBOOT_FORMAT1_3_SIZE;
10392                                 break;
10393                         default:
10394                                 return 0;
10395                         }
10396                 } else
10397                         return 0;
10398         } else if ((magic & TG3_EEPROM_MAGIC_HW_MSK) == TG3_EEPROM_MAGIC_HW)
10399                 size = NVRAM_SELFBOOT_HW_SIZE;
10400         else
10401                 return -EIO;
10402
10403         buf = kmalloc(size, GFP_KERNEL);
10404         if (buf == NULL)
10405                 return -ENOMEM;
10406
10407         err = -EIO;
10408         for (i = 0, j = 0; i < size; i += 4, j++) {
10409                 err = tg3_nvram_read_be32(tp, i, &buf[j]);
10410                 if (err)
10411                         break;
10412         }
10413         if (i < size)
10414                 goto out;
10415
10416         /* Selfboot format */
10417         magic = be32_to_cpu(buf[0]);
10418         if ((magic & TG3_EEPROM_MAGIC_FW_MSK) ==
10419             TG3_EEPROM_MAGIC_FW) {
10420                 u8 *buf8 = (u8 *) buf, csum8 = 0;
10421
10422                 if ((magic & TG3_EEPROM_SB_REVISION_MASK) ==
10423                     TG3_EEPROM_SB_REVISION_2) {
10424                         /* For rev 2, the csum doesn't include the MBA. */
10425                         for (i = 0; i < TG3_EEPROM_SB_F1R2_MBA_OFF; i++)
10426                                 csum8 += buf8[i];
10427                         for (i = TG3_EEPROM_SB_F1R2_MBA_OFF + 4; i < size; i++)
10428                                 csum8 += buf8[i];
10429                 } else {
10430                         for (i = 0; i < size; i++)
10431                                 csum8 += buf8[i];
10432                 }
10433
10434                 if (csum8 == 0) {
10435                         err = 0;
10436                         goto out;
10437                 }
10438
10439                 err = -EIO;
10440                 goto out;
10441         }
10442
10443         if ((magic & TG3_EEPROM_MAGIC_HW_MSK) ==
10444             TG3_EEPROM_MAGIC_HW) {
10445                 u8 data[NVRAM_SELFBOOT_DATA_SIZE];
10446                 u8 parity[NVRAM_SELFBOOT_DATA_SIZE];
10447                 u8 *buf8 = (u8 *) buf;
10448
10449                 /* Separate the parity bits and the data bytes.  */
10450                 for (i = 0, j = 0, k = 0; i < NVRAM_SELFBOOT_HW_SIZE; i++) {
10451                         if ((i == 0) || (i == 8)) {
10452                                 int l;
10453                                 u8 msk;
10454
10455                                 for (l = 0, msk = 0x80; l < 7; l++, msk >>= 1)
10456                                         parity[k++] = buf8[i] & msk;
10457                                 i++;
10458                         } else if (i == 16) {
10459                                 int l;
10460                                 u8 msk;
10461
10462                                 for (l = 0, msk = 0x20; l < 6; l++, msk >>= 1)
10463                                         parity[k++] = buf8[i] & msk;
10464                                 i++;
10465
10466                                 for (l = 0, msk = 0x80; l < 8; l++, msk >>= 1)
10467                                         parity[k++] = buf8[i] & msk;
10468                                 i++;
10469                         }
10470                         data[j++] = buf8[i];
10471                 }
10472
10473                 err = -EIO;
10474                 for (i = 0; i < NVRAM_SELFBOOT_DATA_SIZE; i++) {
10475                         u8 hw8 = hweight8(data[i]);
10476
10477                         if ((hw8 & 0x1) && parity[i])
10478                                 goto out;
10479                         else if (!(hw8 & 0x1) && !parity[i])
10480                                 goto out;
10481                 }
10482                 err = 0;
10483                 goto out;
10484         }
10485
10486         err = -EIO;
10487
10488         /* Bootstrap checksum at offset 0x10 */
10489         csum = calc_crc((unsigned char *) buf, 0x10);
10490         if (csum != le32_to_cpu(buf[0x10/4]))
10491                 goto out;
10492
10493         /* Manufacturing block starts at offset 0x74, checksum at 0xfc */
10494         csum = calc_crc((unsigned char *) &buf[0x74/4], 0x88);
10495         if (csum != le32_to_cpu(buf[0xfc/4]))
10496                 goto out;
10497
10498         for (i = 0; i < TG3_NVM_VPD_LEN; i += 4) {
10499                 /* The data is in little-endian format in NVRAM.
10500                  * Use the big-endian read routines to preserve
10501                  * the byte order as it exists in NVRAM.
10502                  */
10503                 if (tg3_nvram_read_be32(tp, TG3_NVM_VPD_OFF + i, &buf[i/4]))
10504                         goto out;
10505         }
10506
10507         i = pci_vpd_find_tag((u8 *)buf, 0, TG3_NVM_VPD_LEN,
10508                              PCI_VPD_LRDT_RO_DATA);
10509         if (i > 0) {
10510                 j = pci_vpd_lrdt_size(&((u8 *)buf)[i]);
10511                 if (j < 0)
10512                         goto out;
10513
10514                 if (i + PCI_VPD_LRDT_TAG_SIZE + j > TG3_NVM_VPD_LEN)
10515                         goto out;
10516
10517                 i += PCI_VPD_LRDT_TAG_SIZE;
10518                 j = pci_vpd_find_info_keyword((u8 *)buf, i, j,
10519                                               PCI_VPD_RO_KEYWORD_CHKSUM);
10520                 if (j > 0) {
10521                         u8 csum8 = 0;
10522
10523                         j += PCI_VPD_INFO_FLD_HDR_SIZE;
10524
10525                         for (i = 0; i <= j; i++)
10526                                 csum8 += ((u8 *)buf)[i];
10527
10528                         if (csum8)
10529                                 goto out;
10530                 }
10531         }
10532
10533         err = 0;
10534
10535 out:
10536         kfree(buf);
10537         return err;
10538 }
10539
10540 #define TG3_SERDES_TIMEOUT_SEC  2
10541 #define TG3_COPPER_TIMEOUT_SEC  6
10542
10543 static int tg3_test_link(struct tg3 *tp)
10544 {
10545         int i, max;
10546
10547         if (!netif_running(tp->dev))
10548                 return -ENODEV;
10549
10550         if (tp->phy_flags & TG3_PHYFLG_ANY_SERDES)
10551                 max = TG3_SERDES_TIMEOUT_SEC;
10552         else
10553                 max = TG3_COPPER_TIMEOUT_SEC;
10554
10555         for (i = 0; i < max; i++) {
10556                 if (netif_carrier_ok(tp->dev))
10557                         return 0;
10558
10559                 if (msleep_interruptible(1000))
10560                         break;
10561         }
10562
10563         return -EIO;
10564 }
10565
10566 /* Only test the commonly used registers */
10567 static int tg3_test_registers(struct tg3 *tp)
10568 {
10569         int i, is_5705, is_5750;
10570         u32 offset, read_mask, write_mask, val, save_val, read_val;
10571         static struct {
10572                 u16 offset;
10573                 u16 flags;
10574 #define TG3_FL_5705     0x1
10575 #define TG3_FL_NOT_5705 0x2
10576 #define TG3_FL_NOT_5788 0x4
10577 #define TG3_FL_NOT_5750 0x8
10578                 u32 read_mask;
10579                 u32 write_mask;
10580         } reg_tbl[] = {
10581                 /* MAC Control Registers */
10582                 { MAC_MODE, TG3_FL_NOT_5705,
10583                         0x00000000, 0x00ef6f8c },
10584                 { MAC_MODE, TG3_FL_5705,
10585                         0x00000000, 0x01ef6b8c },
10586                 { MAC_STATUS, TG3_FL_NOT_5705,
10587                         0x03800107, 0x00000000 },
10588                 { MAC_STATUS, TG3_FL_5705,
10589                         0x03800100, 0x00000000 },
10590                 { MAC_ADDR_0_HIGH, 0x0000,
10591                         0x00000000, 0x0000ffff },
10592                 { MAC_ADDR_0_LOW, 0x0000,
10593                         0x00000000, 0xffffffff },
10594                 { MAC_RX_MTU_SIZE, 0x0000,
10595                         0x00000000, 0x0000ffff },
10596                 { MAC_TX_MODE, 0x0000,
10597                         0x00000000, 0x00000070 },
10598                 { MAC_TX_LENGTHS, 0x0000,
10599                         0x00000000, 0x00003fff },
10600                 { MAC_RX_MODE, TG3_FL_NOT_5705,
10601                         0x00000000, 0x000007fc },
10602                 { MAC_RX_MODE, TG3_FL_5705,
10603                         0x00000000, 0x000007dc },
10604                 { MAC_HASH_REG_0, 0x0000,
10605                         0x00000000, 0xffffffff },
10606                 { MAC_HASH_REG_1, 0x0000,
10607                         0x00000000, 0xffffffff },
10608                 { MAC_HASH_REG_2, 0x0000,
10609                         0x00000000, 0xffffffff },
10610                 { MAC_HASH_REG_3, 0x0000,
10611                         0x00000000, 0xffffffff },
10612
10613                 /* Receive Data and Receive BD Initiator Control Registers. */
10614                 { RCVDBDI_JUMBO_BD+0, TG3_FL_NOT_5705,
10615                         0x00000000, 0xffffffff },
10616                 { RCVDBDI_JUMBO_BD+4, TG3_FL_NOT_5705,
10617                         0x00000000, 0xffffffff },
10618                 { RCVDBDI_JUMBO_BD+8, TG3_FL_NOT_5705,
10619                         0x00000000, 0x00000003 },
10620                 { RCVDBDI_JUMBO_BD+0xc, TG3_FL_NOT_5705,
10621                         0x00000000, 0xffffffff },
10622                 { RCVDBDI_STD_BD+0, 0x0000,
10623                         0x00000000, 0xffffffff },
10624                 { RCVDBDI_STD_BD+4, 0x0000,
10625                         0x00000000, 0xffffffff },
10626                 { RCVDBDI_STD_BD+8, 0x0000,
10627                         0x00000000, 0xffff0002 },
10628                 { RCVDBDI_STD_BD+0xc, 0x0000,
10629                         0x00000000, 0xffffffff },
10630
10631                 /* Receive BD Initiator Control Registers. */
10632                 { RCVBDI_STD_THRESH, TG3_FL_NOT_5705,
10633                         0x00000000, 0xffffffff },
10634                 { RCVBDI_STD_THRESH, TG3_FL_5705,
10635                         0x00000000, 0x000003ff },
10636                 { RCVBDI_JUMBO_THRESH, TG3_FL_NOT_5705,
10637                         0x00000000, 0xffffffff },
10638
10639                 /* Host Coalescing Control Registers. */
10640                 { HOSTCC_MODE, TG3_FL_NOT_5705,
10641                         0x00000000, 0x00000004 },
10642                 { HOSTCC_MODE, TG3_FL_5705,
10643                         0x00000000, 0x000000f6 },
10644                 { HOSTCC_RXCOL_TICKS, TG3_FL_NOT_5705,
10645                         0x00000000, 0xffffffff },
10646                 { HOSTCC_RXCOL_TICKS, TG3_FL_5705,
10647                         0x00000000, 0x000003ff },
10648                 { HOSTCC_TXCOL_TICKS, TG3_FL_NOT_5705,
10649                         0x00000000, 0xffffffff },
10650                 { HOSTCC_TXCOL_TICKS, TG3_FL_5705,
10651                         0x00000000, 0x000003ff },
10652                 { HOSTCC_RXMAX_FRAMES, TG3_FL_NOT_5705,
10653                         0x00000000, 0xffffffff },
10654                 { HOSTCC_RXMAX_FRAMES, TG3_FL_5705 | TG3_FL_NOT_5788,
10655                         0x00000000, 0x000000ff },
10656                 { HOSTCC_TXMAX_FRAMES, TG3_FL_NOT_5705,
10657                         0x00000000, 0xffffffff },
10658                 { HOSTCC_TXMAX_FRAMES, TG3_FL_5705 | TG3_FL_NOT_5788,
10659                         0x00000000, 0x000000ff },
10660                 { HOSTCC_RXCOAL_TICK_INT, TG3_FL_NOT_5705,
10661                         0x00000000, 0xffffffff },
10662                 { HOSTCC_TXCOAL_TICK_INT, TG3_FL_NOT_5705,
10663                         0x00000000, 0xffffffff },
10664                 { HOSTCC_RXCOAL_MAXF_INT, TG3_FL_NOT_5705,
10665                         0x00000000, 0xffffffff },
10666                 { HOSTCC_RXCOAL_MAXF_INT, TG3_FL_5705 | TG3_FL_NOT_5788,
10667                         0x00000000, 0x000000ff },
10668                 { HOSTCC_TXCOAL_MAXF_INT, TG3_FL_NOT_5705,
10669                         0x00000000, 0xffffffff },
10670                 { HOSTCC_TXCOAL_MAXF_INT, TG3_FL_5705 | TG3_FL_NOT_5788,
10671                         0x00000000, 0x000000ff },
10672                 { HOSTCC_STAT_COAL_TICKS, TG3_FL_NOT_5705,
10673                         0x00000000, 0xffffffff },
10674                 { HOSTCC_STATS_BLK_HOST_ADDR, TG3_FL_NOT_5705,
10675                         0x00000000, 0xffffffff },
10676                 { HOSTCC_STATS_BLK_HOST_ADDR+4, TG3_FL_NOT_5705,
10677                         0x00000000, 0xffffffff },
10678                 { HOSTCC_STATUS_BLK_HOST_ADDR, 0x0000,
10679                         0x00000000, 0xffffffff },
10680                 { HOSTCC_STATUS_BLK_HOST_ADDR+4, 0x0000,
10681                         0x00000000, 0xffffffff },
10682                 { HOSTCC_STATS_BLK_NIC_ADDR, 0x0000,
10683                         0xffffffff, 0x00000000 },
10684                 { HOSTCC_STATUS_BLK_NIC_ADDR, 0x0000,
10685                         0xffffffff, 0x00000000 },
10686
10687                 /* Buffer Manager Control Registers. */
10688                 { BUFMGR_MB_POOL_ADDR, TG3_FL_NOT_5750,
10689                         0x00000000, 0x007fff80 },
10690                 { BUFMGR_MB_POOL_SIZE, TG3_FL_NOT_5750,
10691                         0x00000000, 0x007fffff },
10692                 { BUFMGR_MB_RDMA_LOW_WATER, 0x0000,
10693                         0x00000000, 0x0000003f },
10694                 { BUFMGR_MB_MACRX_LOW_WATER, 0x0000,
10695                         0x00000000, 0x000001ff },
10696                 { BUFMGR_MB_HIGH_WATER, 0x0000,
10697                         0x00000000, 0x000001ff },
10698                 { BUFMGR_DMA_DESC_POOL_ADDR, TG3_FL_NOT_5705,
10699                         0xffffffff, 0x00000000 },
10700                 { BUFMGR_DMA_DESC_POOL_SIZE, TG3_FL_NOT_5705,
10701                         0xffffffff, 0x00000000 },
10702
10703                 /* Mailbox Registers */
10704                 { GRCMBOX_RCVSTD_PROD_IDX+4, 0x0000,
10705                         0x00000000, 0x000001ff },
10706                 { GRCMBOX_RCVJUMBO_PROD_IDX+4, TG3_FL_NOT_5705,
10707                         0x00000000, 0x000001ff },
10708                 { GRCMBOX_RCVRET_CON_IDX_0+4, 0x0000,
10709                         0x00000000, 0x000007ff },
10710                 { GRCMBOX_SNDHOST_PROD_IDX_0+4, 0x0000,
10711                         0x00000000, 0x000001ff },
10712
10713                 { 0xffff, 0x0000, 0x00000000, 0x00000000 },
10714         };
10715
10716         is_5705 = is_5750 = 0;
10717         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
10718                 is_5705 = 1;
10719                 if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS)
10720                         is_5750 = 1;
10721         }
10722
10723         for (i = 0; reg_tbl[i].offset != 0xffff; i++) {
10724                 if (is_5705 && (reg_tbl[i].flags & TG3_FL_NOT_5705))
10725                         continue;
10726
10727                 if (!is_5705 && (reg_tbl[i].flags & TG3_FL_5705))
10728                         continue;
10729
10730                 if ((tp->tg3_flags2 & TG3_FLG2_IS_5788) &&
10731                     (reg_tbl[i].flags & TG3_FL_NOT_5788))
10732                         continue;
10733
10734                 if (is_5750 && (reg_tbl[i].flags & TG3_FL_NOT_5750))
10735                         continue;
10736
10737                 offset = (u32) reg_tbl[i].offset;
10738                 read_mask = reg_tbl[i].read_mask;
10739                 write_mask = reg_tbl[i].write_mask;
10740
10741                 /* Save the original register content */
10742                 save_val = tr32(offset);
10743
10744                 /* Determine the read-only value. */
10745                 read_val = save_val & read_mask;
10746
10747                 /* Write zero to the register, then make sure the read-only bits
10748                  * are not changed and the read/write bits are all zeros.
10749                  */
10750                 tw32(offset, 0);
10751
10752                 val = tr32(offset);
10753
10754                 /* Test the read-only and read/write bits. */
10755                 if (((val & read_mask) != read_val) || (val & write_mask))
10756                         goto out;
10757
10758                 /* Write ones to all the bits defined by RdMask and WrMask, then
10759                  * make sure the read-only bits are not changed and the
10760                  * read/write bits are all ones.
10761                  */
10762                 tw32(offset, read_mask | write_mask);
10763
10764                 val = tr32(offset);
10765
10766                 /* Test the read-only bits. */
10767                 if ((val & read_mask) != read_val)
10768                         goto out;
10769
10770                 /* Test the read/write bits. */
10771                 if ((val & write_mask) != write_mask)
10772                         goto out;
10773
10774                 tw32(offset, save_val);
10775         }
10776
10777         return 0;
10778
10779 out:
10780         if (netif_msg_hw(tp))
10781                 netdev_err(tp->dev,
10782                            "Register test failed at offset %x\n", offset);
10783         tw32(offset, save_val);
10784         return -EIO;
10785 }
10786
10787 static int tg3_do_mem_test(struct tg3 *tp, u32 offset, u32 len)
10788 {
10789         static const u32 test_pattern[] = { 0x00000000, 0xffffffff, 0xaa55a55a };
10790         int i;
10791         u32 j;
10792
10793         for (i = 0; i < ARRAY_SIZE(test_pattern); i++) {
10794                 for (j = 0; j < len; j += 4) {
10795                         u32 val;
10796
10797                         tg3_write_mem(tp, offset + j, test_pattern[i]);
10798                         tg3_read_mem(tp, offset + j, &val);
10799                         if (val != test_pattern[i])
10800                                 return -EIO;
10801                 }
10802         }
10803         return 0;
10804 }
10805
10806 static int tg3_test_memory(struct tg3 *tp)
10807 {
10808         static struct mem_entry {
10809                 u32 offset;
10810                 u32 len;
10811         } mem_tbl_570x[] = {
10812                 { 0x00000000, 0x00b50},
10813                 { 0x00002000, 0x1c000},
10814                 { 0xffffffff, 0x00000}
10815         }, mem_tbl_5705[] = {
10816                 { 0x00000100, 0x0000c},
10817                 { 0x00000200, 0x00008},
10818                 { 0x00004000, 0x00800},
10819                 { 0x00006000, 0x01000},
10820                 { 0x00008000, 0x02000},
10821                 { 0x00010000, 0x0e000},
10822                 { 0xffffffff, 0x00000}
10823         }, mem_tbl_5755[] = {
10824                 { 0x00000200, 0x00008},
10825                 { 0x00004000, 0x00800},
10826                 { 0x00006000, 0x00800},
10827                 { 0x00008000, 0x02000},
10828                 { 0x00010000, 0x0c000},
10829                 { 0xffffffff, 0x00000}
10830         }, mem_tbl_5906[] = {
10831                 { 0x00000200, 0x00008},
10832                 { 0x00004000, 0x00400},
10833                 { 0x00006000, 0x00400},
10834                 { 0x00008000, 0x01000},
10835                 { 0x00010000, 0x01000},
10836                 { 0xffffffff, 0x00000}
10837         }, mem_tbl_5717[] = {
10838                 { 0x00000200, 0x00008},
10839                 { 0x00010000, 0x0a000},
10840                 { 0x00020000, 0x13c00},
10841                 { 0xffffffff, 0x00000}
10842         }, mem_tbl_57765[] = {
10843                 { 0x00000200, 0x00008},
10844                 { 0x00004000, 0x00800},
10845                 { 0x00006000, 0x09800},
10846                 { 0x00010000, 0x0a000},
10847                 { 0xffffffff, 0x00000}
10848         };
10849         struct mem_entry *mem_tbl;
10850         int err = 0;
10851         int i;
10852
10853         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
10854             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719)
10855                 mem_tbl = mem_tbl_5717;
10856         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
10857                 mem_tbl = mem_tbl_57765;
10858         else if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
10859                 mem_tbl = mem_tbl_5755;
10860         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
10861                 mem_tbl = mem_tbl_5906;
10862         else if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
10863                 mem_tbl = mem_tbl_5705;
10864         else
10865                 mem_tbl = mem_tbl_570x;
10866
10867         for (i = 0; mem_tbl[i].offset != 0xffffffff; i++) {
10868                 err = tg3_do_mem_test(tp, mem_tbl[i].offset, mem_tbl[i].len);
10869                 if (err)
10870                         break;
10871         }
10872
10873         return err;
10874 }
10875
10876 #define TG3_MAC_LOOPBACK        0
10877 #define TG3_PHY_LOOPBACK        1
10878
10879 static int tg3_run_loopback(struct tg3 *tp, int loopback_mode)
10880 {
10881         u32 mac_mode, rx_start_idx, rx_idx, tx_idx, opaque_key;
10882         u32 desc_idx, coal_now;
10883         struct sk_buff *skb, *rx_skb;
10884         u8 *tx_data;
10885         dma_addr_t map;
10886         int num_pkts, tx_len, rx_len, i, err;
10887         struct tg3_rx_buffer_desc *desc;
10888         struct tg3_napi *tnapi, *rnapi;
10889         struct tg3_rx_prodring_set *tpr = &tp->napi[0].prodring;
10890
10891         tnapi = &tp->napi[0];
10892         rnapi = &tp->napi[0];
10893         if (tp->irq_cnt > 1) {
10894                 if (tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS)
10895                         rnapi = &tp->napi[1];
10896                 if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
10897                         tnapi = &tp->napi[1];
10898         }
10899         coal_now = tnapi->coal_now | rnapi->coal_now;
10900
10901         if (loopback_mode == TG3_MAC_LOOPBACK) {
10902                 /* HW errata - mac loopback fails in some cases on 5780.
10903                  * Normal traffic and PHY loopback are not affected by
10904                  * errata.  Also, the MAC loopback test is deprecated for
10905                  * all newer ASIC revisions.
10906                  */
10907                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780 ||
10908                     (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT))
10909                         return 0;
10910
10911                 mac_mode = tp->mac_mode &
10912                            ~(MAC_MODE_PORT_MODE_MASK | MAC_MODE_HALF_DUPLEX);
10913                 mac_mode |= MAC_MODE_PORT_INT_LPBACK;
10914                 if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
10915                         mac_mode |= MAC_MODE_LINK_POLARITY;
10916                 if (tp->phy_flags & TG3_PHYFLG_10_100_ONLY)
10917                         mac_mode |= MAC_MODE_PORT_MODE_MII;
10918                 else
10919                         mac_mode |= MAC_MODE_PORT_MODE_GMII;
10920                 tw32(MAC_MODE, mac_mode);
10921         } else if (loopback_mode == TG3_PHY_LOOPBACK) {
10922                 u32 val;
10923
10924                 if (tp->phy_flags & TG3_PHYFLG_IS_FET) {
10925                         tg3_phy_fet_toggle_apd(tp, false);
10926                         val = BMCR_LOOPBACK | BMCR_FULLDPLX | BMCR_SPEED100;
10927                 } else
10928                         val = BMCR_LOOPBACK | BMCR_FULLDPLX | BMCR_SPEED1000;
10929
10930                 tg3_phy_toggle_automdix(tp, 0);
10931
10932                 tg3_writephy(tp, MII_BMCR, val);
10933                 udelay(40);
10934
10935                 mac_mode = tp->mac_mode &
10936                            ~(MAC_MODE_PORT_MODE_MASK | MAC_MODE_HALF_DUPLEX);
10937                 if (tp->phy_flags & TG3_PHYFLG_IS_FET) {
10938                         tg3_writephy(tp, MII_TG3_FET_PTEST,
10939                                      MII_TG3_FET_PTEST_FRC_TX_LINK |
10940                                      MII_TG3_FET_PTEST_FRC_TX_LOCK);
10941                         /* The write needs to be flushed for the AC131 */
10942                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
10943                                 tg3_readphy(tp, MII_TG3_FET_PTEST, &val);
10944                         mac_mode |= MAC_MODE_PORT_MODE_MII;
10945                 } else
10946                         mac_mode |= MAC_MODE_PORT_MODE_GMII;
10947
10948                 /* reset to prevent losing 1st rx packet intermittently */
10949                 if (tp->phy_flags & TG3_PHYFLG_MII_SERDES) {
10950                         tw32_f(MAC_RX_MODE, RX_MODE_RESET);
10951                         udelay(10);
10952                         tw32_f(MAC_RX_MODE, tp->rx_mode);
10953                 }
10954                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) {
10955                         u32 masked_phy_id = tp->phy_id & TG3_PHY_ID_MASK;
10956                         if (masked_phy_id == TG3_PHY_ID_BCM5401)
10957                                 mac_mode &= ~MAC_MODE_LINK_POLARITY;
10958                         else if (masked_phy_id == TG3_PHY_ID_BCM5411)
10959                                 mac_mode |= MAC_MODE_LINK_POLARITY;
10960                         tg3_writephy(tp, MII_TG3_EXT_CTRL,
10961                                      MII_TG3_EXT_CTRL_LNK3_LED_MODE);
10962                 }
10963                 tw32(MAC_MODE, mac_mode);
10964
10965                 /* Wait for link */
10966                 for (i = 0; i < 100; i++) {
10967                         if (tr32(MAC_TX_STATUS) & TX_STATUS_LINK_UP)
10968                                 break;
10969                         mdelay(1);
10970                 }
10971         } else {
10972                 return -EINVAL;
10973         }
10974
10975         err = -EIO;
10976
10977         tx_len = 1514;
10978         skb = netdev_alloc_skb(tp->dev, tx_len);
10979         if (!skb)
10980                 return -ENOMEM;
10981
10982         tx_data = skb_put(skb, tx_len);
10983         memcpy(tx_data, tp->dev->dev_addr, 6);
10984         memset(tx_data + 6, 0x0, 8);
10985
10986         tw32(MAC_RX_MTU_SIZE, tx_len + 4);
10987
10988         for (i = 14; i < tx_len; i++)
10989                 tx_data[i] = (u8) (i & 0xff);
10990
10991         map = pci_map_single(tp->pdev, skb->data, tx_len, PCI_DMA_TODEVICE);
10992         if (pci_dma_mapping_error(tp->pdev, map)) {
10993                 dev_kfree_skb(skb);
10994                 return -EIO;
10995         }
10996
10997         tw32_f(HOSTCC_MODE, tp->coalesce_mode | HOSTCC_MODE_ENABLE |
10998                rnapi->coal_now);
10999
11000         udelay(10);
11001
11002         rx_start_idx = rnapi->hw_status->idx[0].rx_producer;
11003
11004         num_pkts = 0;
11005
11006         tg3_set_txd(tnapi, tnapi->tx_prod, map, tx_len, 0, 1);
11007
11008         tnapi->tx_prod++;
11009         num_pkts++;
11010
11011         tw32_tx_mbox(tnapi->prodmbox, tnapi->tx_prod);
11012         tr32_mailbox(tnapi->prodmbox);
11013
11014         udelay(10);
11015
11016         /* 350 usec to allow enough time on some 10/100 Mbps devices.  */
11017         for (i = 0; i < 35; i++) {
11018                 tw32_f(HOSTCC_MODE, tp->coalesce_mode | HOSTCC_MODE_ENABLE |
11019                        coal_now);
11020
11021                 udelay(10);
11022
11023                 tx_idx = tnapi->hw_status->idx[0].tx_consumer;
11024                 rx_idx = rnapi->hw_status->idx[0].rx_producer;
11025                 if ((tx_idx == tnapi->tx_prod) &&
11026                     (rx_idx == (rx_start_idx + num_pkts)))
11027                         break;
11028         }
11029
11030         pci_unmap_single(tp->pdev, map, tx_len, PCI_DMA_TODEVICE);
11031         dev_kfree_skb(skb);
11032
11033         if (tx_idx != tnapi->tx_prod)
11034                 goto out;
11035
11036         if (rx_idx != rx_start_idx + num_pkts)
11037                 goto out;
11038
11039         desc = &rnapi->rx_rcb[rx_start_idx];
11040         desc_idx = desc->opaque & RXD_OPAQUE_INDEX_MASK;
11041         opaque_key = desc->opaque & RXD_OPAQUE_RING_MASK;
11042         if (opaque_key != RXD_OPAQUE_RING_STD)
11043                 goto out;
11044
11045         if ((desc->err_vlan & RXD_ERR_MASK) != 0 &&
11046             (desc->err_vlan != RXD_ERR_ODD_NIBBLE_RCVD_MII))
11047                 goto out;
11048
11049         rx_len = ((desc->idx_len & RXD_LEN_MASK) >> RXD_LEN_SHIFT) - 4;
11050         if (rx_len != tx_len)
11051                 goto out;
11052
11053         rx_skb = tpr->rx_std_buffers[desc_idx].skb;
11054
11055         map = dma_unmap_addr(&tpr->rx_std_buffers[desc_idx], mapping);
11056         pci_dma_sync_single_for_cpu(tp->pdev, map, rx_len, PCI_DMA_FROMDEVICE);
11057
11058         for (i = 14; i < tx_len; i++) {
11059                 if (*(rx_skb->data + i) != (u8) (i & 0xff))
11060                         goto out;
11061         }
11062         err = 0;
11063
11064         /* tg3_free_rings will unmap and free the rx_skb */
11065 out:
11066         return err;
11067 }
11068
11069 #define TG3_MAC_LOOPBACK_FAILED         1
11070 #define TG3_PHY_LOOPBACK_FAILED         2
11071 #define TG3_LOOPBACK_FAILED             (TG3_MAC_LOOPBACK_FAILED |      \
11072                                          TG3_PHY_LOOPBACK_FAILED)
11073
11074 static int tg3_test_loopback(struct tg3 *tp)
11075 {
11076         int err = 0;
11077         u32 eee_cap, cpmuctrl = 0;
11078
11079         if (!netif_running(tp->dev))
11080                 return TG3_LOOPBACK_FAILED;
11081
11082         eee_cap = tp->phy_flags & TG3_PHYFLG_EEE_CAP;
11083         tp->phy_flags &= ~TG3_PHYFLG_EEE_CAP;
11084
11085         err = tg3_reset_hw(tp, 1);
11086         if (err) {
11087                 err = TG3_LOOPBACK_FAILED;
11088                 goto done;
11089         }
11090
11091         /* Turn off gphy autopowerdown. */
11092         if (tp->phy_flags & TG3_PHYFLG_ENABLE_APD)
11093                 tg3_phy_toggle_apd(tp, false);
11094
11095         if (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) {
11096                 int i;
11097                 u32 status;
11098
11099                 tw32(TG3_CPMU_MUTEX_REQ, CPMU_MUTEX_REQ_DRIVER);
11100
11101                 /* Wait for up to 40 microseconds to acquire lock. */
11102                 for (i = 0; i < 4; i++) {
11103                         status = tr32(TG3_CPMU_MUTEX_GNT);
11104                         if (status == CPMU_MUTEX_GNT_DRIVER)
11105                                 break;
11106                         udelay(10);
11107                 }
11108
11109                 if (status != CPMU_MUTEX_GNT_DRIVER) {
11110                         err = TG3_LOOPBACK_FAILED;
11111                         goto done;
11112                 }
11113
11114                 /* Turn off link-based power management. */
11115                 cpmuctrl = tr32(TG3_CPMU_CTRL);
11116                 tw32(TG3_CPMU_CTRL,
11117                      cpmuctrl & ~(CPMU_CTRL_LINK_SPEED_MODE |
11118                                   CPMU_CTRL_LINK_AWARE_MODE));
11119         }
11120
11121         if (tg3_run_loopback(tp, TG3_MAC_LOOPBACK))
11122                 err |= TG3_MAC_LOOPBACK_FAILED;
11123
11124         if (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) {
11125                 tw32(TG3_CPMU_CTRL, cpmuctrl);
11126
11127                 /* Release the mutex */
11128                 tw32(TG3_CPMU_MUTEX_GNT, CPMU_MUTEX_GNT_DRIVER);
11129         }
11130
11131         if (!(tp->phy_flags & TG3_PHYFLG_PHY_SERDES) &&
11132             !(tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB)) {
11133                 if (tg3_run_loopback(tp, TG3_PHY_LOOPBACK))
11134                         err |= TG3_PHY_LOOPBACK_FAILED;
11135         }
11136
11137         /* Re-enable gphy autopowerdown. */
11138         if (tp->phy_flags & TG3_PHYFLG_ENABLE_APD)
11139                 tg3_phy_toggle_apd(tp, true);
11140
11141 done:
11142         tp->phy_flags |= eee_cap;
11143
11144         return err;
11145 }
11146
11147 static void tg3_self_test(struct net_device *dev, struct ethtool_test *etest,
11148                           u64 *data)
11149 {
11150         struct tg3 *tp = netdev_priv(dev);
11151
11152         if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)
11153                 tg3_power_up(tp);
11154
11155         memset(data, 0, sizeof(u64) * TG3_NUM_TEST);
11156
11157         if (tg3_test_nvram(tp) != 0) {
11158                 etest->flags |= ETH_TEST_FL_FAILED;
11159                 data[0] = 1;
11160         }
11161         if (tg3_test_link(tp) != 0) {
11162                 etest->flags |= ETH_TEST_FL_FAILED;
11163                 data[1] = 1;
11164         }
11165         if (etest->flags & ETH_TEST_FL_OFFLINE) {
11166                 int err, err2 = 0, irq_sync = 0;
11167
11168                 if (netif_running(dev)) {
11169                         tg3_phy_stop(tp);
11170                         tg3_netif_stop(tp);
11171                         irq_sync = 1;
11172                 }
11173
11174                 tg3_full_lock(tp, irq_sync);
11175
11176                 tg3_halt(tp, RESET_KIND_SUSPEND, 1);
11177                 err = tg3_nvram_lock(tp);
11178                 tg3_halt_cpu(tp, RX_CPU_BASE);
11179                 if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
11180                         tg3_halt_cpu(tp, TX_CPU_BASE);
11181                 if (!err)
11182                         tg3_nvram_unlock(tp);
11183
11184                 if (tp->phy_flags & TG3_PHYFLG_MII_SERDES)
11185                         tg3_phy_reset(tp);
11186
11187                 if (tg3_test_registers(tp) != 0) {
11188                         etest->flags |= ETH_TEST_FL_FAILED;
11189                         data[2] = 1;
11190                 }
11191                 if (tg3_test_memory(tp) != 0) {
11192                         etest->flags |= ETH_TEST_FL_FAILED;
11193                         data[3] = 1;
11194                 }
11195                 if ((data[4] = tg3_test_loopback(tp)) != 0)
11196                         etest->flags |= ETH_TEST_FL_FAILED;
11197
11198                 tg3_full_unlock(tp);
11199
11200                 if (tg3_test_interrupt(tp) != 0) {
11201                         etest->flags |= ETH_TEST_FL_FAILED;
11202                         data[5] = 1;
11203                 }
11204
11205                 tg3_full_lock(tp, 0);
11206
11207                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
11208                 if (netif_running(dev)) {
11209                         tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
11210                         err2 = tg3_restart_hw(tp, 1);
11211                         if (!err2)
11212                                 tg3_netif_start(tp);
11213                 }
11214
11215                 tg3_full_unlock(tp);
11216
11217                 if (irq_sync && !err2)
11218                         tg3_phy_start(tp);
11219         }
11220         if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)
11221                 tg3_power_down(tp);
11222
11223 }
11224
11225 static int tg3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
11226 {
11227         struct mii_ioctl_data *data = if_mii(ifr);
11228         struct tg3 *tp = netdev_priv(dev);
11229         int err;
11230
11231         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
11232                 struct phy_device *phydev;
11233                 if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
11234                         return -EAGAIN;
11235                 phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
11236                 return phy_mii_ioctl(phydev, ifr, cmd);
11237         }
11238
11239         switch (cmd) {
11240         case SIOCGMIIPHY:
11241                 data->phy_id = tp->phy_addr;
11242
11243                 /* fallthru */
11244         case SIOCGMIIREG: {
11245                 u32 mii_regval;
11246
11247                 if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES)
11248                         break;                  /* We have no PHY */
11249
11250                 if ((tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER) ||
11251                     ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) &&
11252                      !netif_running(dev)))
11253                         return -EAGAIN;
11254
11255                 spin_lock_bh(&tp->lock);
11256                 err = tg3_readphy(tp, data->reg_num & 0x1f, &mii_regval);
11257                 spin_unlock_bh(&tp->lock);
11258
11259                 data->val_out = mii_regval;
11260
11261                 return err;
11262         }
11263
11264         case SIOCSMIIREG:
11265                 if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES)
11266                         break;                  /* We have no PHY */
11267
11268                 if ((tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER) ||
11269                     ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) &&
11270                      !netif_running(dev)))
11271                         return -EAGAIN;
11272
11273                 spin_lock_bh(&tp->lock);
11274                 err = tg3_writephy(tp, data->reg_num & 0x1f, data->val_in);
11275                 spin_unlock_bh(&tp->lock);
11276
11277                 return err;
11278
11279         default:
11280                 /* do nothing */
11281                 break;
11282         }
11283         return -EOPNOTSUPP;
11284 }
11285
11286 static int tg3_get_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
11287 {
11288         struct tg3 *tp = netdev_priv(dev);
11289
11290         memcpy(ec, &tp->coal, sizeof(*ec));
11291         return 0;
11292 }
11293
11294 static int tg3_set_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
11295 {
11296         struct tg3 *tp = netdev_priv(dev);
11297         u32 max_rxcoal_tick_int = 0, max_txcoal_tick_int = 0;
11298         u32 max_stat_coal_ticks = 0, min_stat_coal_ticks = 0;
11299
11300         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
11301                 max_rxcoal_tick_int = MAX_RXCOAL_TICK_INT;
11302                 max_txcoal_tick_int = MAX_TXCOAL_TICK_INT;
11303                 max_stat_coal_ticks = MAX_STAT_COAL_TICKS;
11304                 min_stat_coal_ticks = MIN_STAT_COAL_TICKS;
11305         }
11306
11307         if ((ec->rx_coalesce_usecs > MAX_RXCOL_TICKS) ||
11308             (ec->tx_coalesce_usecs > MAX_TXCOL_TICKS) ||
11309             (ec->rx_max_coalesced_frames > MAX_RXMAX_FRAMES) ||
11310             (ec->tx_max_coalesced_frames > MAX_TXMAX_FRAMES) ||
11311             (ec->rx_coalesce_usecs_irq > max_rxcoal_tick_int) ||
11312             (ec->tx_coalesce_usecs_irq > max_txcoal_tick_int) ||
11313             (ec->rx_max_coalesced_frames_irq > MAX_RXCOAL_MAXF_INT) ||
11314             (ec->tx_max_coalesced_frames_irq > MAX_TXCOAL_MAXF_INT) ||
11315             (ec->stats_block_coalesce_usecs > max_stat_coal_ticks) ||
11316             (ec->stats_block_coalesce_usecs < min_stat_coal_ticks))
11317                 return -EINVAL;
11318
11319         /* No rx interrupts will be generated if both are zero */
11320         if ((ec->rx_coalesce_usecs == 0) &&
11321             (ec->rx_max_coalesced_frames == 0))
11322                 return -EINVAL;
11323
11324         /* No tx interrupts will be generated if both are zero */
11325         if ((ec->tx_coalesce_usecs == 0) &&
11326             (ec->tx_max_coalesced_frames == 0))
11327                 return -EINVAL;
11328
11329         /* Only copy relevant parameters, ignore all others. */
11330         tp->coal.rx_coalesce_usecs = ec->rx_coalesce_usecs;
11331         tp->coal.tx_coalesce_usecs = ec->tx_coalesce_usecs;
11332         tp->coal.rx_max_coalesced_frames = ec->rx_max_coalesced_frames;
11333         tp->coal.tx_max_coalesced_frames = ec->tx_max_coalesced_frames;
11334         tp->coal.rx_coalesce_usecs_irq = ec->rx_coalesce_usecs_irq;
11335         tp->coal.tx_coalesce_usecs_irq = ec->tx_coalesce_usecs_irq;
11336         tp->coal.rx_max_coalesced_frames_irq = ec->rx_max_coalesced_frames_irq;
11337         tp->coal.tx_max_coalesced_frames_irq = ec->tx_max_coalesced_frames_irq;
11338         tp->coal.stats_block_coalesce_usecs = ec->stats_block_coalesce_usecs;
11339
11340         if (netif_running(dev)) {
11341                 tg3_full_lock(tp, 0);
11342                 __tg3_set_coalesce(tp, &tp->coal);
11343                 tg3_full_unlock(tp);
11344         }
11345         return 0;
11346 }
11347
11348 static const struct ethtool_ops tg3_ethtool_ops = {
11349         .get_settings           = tg3_get_settings,
11350         .set_settings           = tg3_set_settings,
11351         .get_drvinfo            = tg3_get_drvinfo,
11352         .get_regs_len           = tg3_get_regs_len,
11353         .get_regs               = tg3_get_regs,
11354         .get_wol                = tg3_get_wol,
11355         .set_wol                = tg3_set_wol,
11356         .get_msglevel           = tg3_get_msglevel,
11357         .set_msglevel           = tg3_set_msglevel,
11358         .nway_reset             = tg3_nway_reset,
11359         .get_link               = ethtool_op_get_link,
11360         .get_eeprom_len         = tg3_get_eeprom_len,
11361         .get_eeprom             = tg3_get_eeprom,
11362         .set_eeprom             = tg3_set_eeprom,
11363         .get_ringparam          = tg3_get_ringparam,
11364         .set_ringparam          = tg3_set_ringparam,
11365         .get_pauseparam         = tg3_get_pauseparam,
11366         .set_pauseparam         = tg3_set_pauseparam,
11367         .get_rx_csum            = tg3_get_rx_csum,
11368         .set_rx_csum            = tg3_set_rx_csum,
11369         .set_tx_csum            = tg3_set_tx_csum,
11370         .set_sg                 = ethtool_op_set_sg,
11371         .set_tso                = tg3_set_tso,
11372         .self_test              = tg3_self_test,
11373         .get_strings            = tg3_get_strings,
11374         .phys_id                = tg3_phys_id,
11375         .get_ethtool_stats      = tg3_get_ethtool_stats,
11376         .get_coalesce           = tg3_get_coalesce,
11377         .set_coalesce           = tg3_set_coalesce,
11378         .get_sset_count         = tg3_get_sset_count,
11379 };
11380
11381 static void __devinit tg3_get_eeprom_size(struct tg3 *tp)
11382 {
11383         u32 cursize, val, magic;
11384
11385         tp->nvram_size = EEPROM_CHIP_SIZE;
11386
11387         if (tg3_nvram_read(tp, 0, &magic) != 0)
11388                 return;
11389
11390         if ((magic != TG3_EEPROM_MAGIC) &&
11391             ((magic & TG3_EEPROM_MAGIC_FW_MSK) != TG3_EEPROM_MAGIC_FW) &&
11392             ((magic & TG3_EEPROM_MAGIC_HW_MSK) != TG3_EEPROM_MAGIC_HW))
11393                 return;
11394
11395         /*
11396          * Size the chip by reading offsets at increasing powers of two.
11397          * When we encounter our validation signature, we know the addressing
11398          * has wrapped around, and thus have our chip size.
11399          */
11400         cursize = 0x10;
11401
11402         while (cursize < tp->nvram_size) {
11403                 if (tg3_nvram_read(tp, cursize, &val) != 0)
11404                         return;
11405
11406                 if (val == magic)
11407                         break;
11408
11409                 cursize <<= 1;
11410         }
11411
11412         tp->nvram_size = cursize;
11413 }
11414
11415 static void __devinit tg3_get_nvram_size(struct tg3 *tp)
11416 {
11417         u32 val;
11418
11419         if ((tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) ||
11420             tg3_nvram_read(tp, 0, &val) != 0)
11421                 return;
11422
11423         /* Selfboot format */
11424         if (val != TG3_EEPROM_MAGIC) {
11425                 tg3_get_eeprom_size(tp);
11426                 return;
11427         }
11428
11429         if (tg3_nvram_read(tp, 0xf0, &val) == 0) {
11430                 if (val != 0) {
11431                         /* This is confusing.  We want to operate on the
11432                          * 16-bit value at offset 0xf2.  The tg3_nvram_read()
11433                          * call will read from NVRAM and byteswap the data
11434                          * according to the byteswapping settings for all
11435                          * other register accesses.  This ensures the data we
11436                          * want will always reside in the lower 16-bits.
11437                          * However, the data in NVRAM is in LE format, which
11438                          * means the data from the NVRAM read will always be
11439                          * opposite the endianness of the CPU.  The 16-bit
11440                          * byteswap then brings the data to CPU endianness.
11441                          */
11442                         tp->nvram_size = swab16((u16)(val & 0x0000ffff)) * 1024;
11443                         return;
11444                 }
11445         }
11446         tp->nvram_size = TG3_NVRAM_SIZE_512KB;
11447 }
11448
11449 static void __devinit tg3_get_nvram_info(struct tg3 *tp)
11450 {
11451         u32 nvcfg1;
11452
11453         nvcfg1 = tr32(NVRAM_CFG1);
11454         if (nvcfg1 & NVRAM_CFG1_FLASHIF_ENAB) {
11455                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11456         } else {
11457                 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
11458                 tw32(NVRAM_CFG1, nvcfg1);
11459         }
11460
11461         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750) ||
11462             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
11463                 switch (nvcfg1 & NVRAM_CFG1_VENDOR_MASK) {
11464                 case FLASH_VENDOR_ATMEL_FLASH_BUFFERED:
11465                         tp->nvram_jedecnum = JEDEC_ATMEL;
11466                         tp->nvram_pagesize = ATMEL_AT45DB0X1B_PAGE_SIZE;
11467                         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11468                         break;
11469                 case FLASH_VENDOR_ATMEL_FLASH_UNBUFFERED:
11470                         tp->nvram_jedecnum = JEDEC_ATMEL;
11471                         tp->nvram_pagesize = ATMEL_AT25F512_PAGE_SIZE;
11472                         break;
11473                 case FLASH_VENDOR_ATMEL_EEPROM:
11474                         tp->nvram_jedecnum = JEDEC_ATMEL;
11475                         tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
11476                         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11477                         break;
11478                 case FLASH_VENDOR_ST:
11479                         tp->nvram_jedecnum = JEDEC_ST;
11480                         tp->nvram_pagesize = ST_M45PEX0_PAGE_SIZE;
11481                         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11482                         break;
11483                 case FLASH_VENDOR_SAIFUN:
11484                         tp->nvram_jedecnum = JEDEC_SAIFUN;
11485                         tp->nvram_pagesize = SAIFUN_SA25F0XX_PAGE_SIZE;
11486                         break;
11487                 case FLASH_VENDOR_SST_SMALL:
11488                 case FLASH_VENDOR_SST_LARGE:
11489                         tp->nvram_jedecnum = JEDEC_SST;
11490                         tp->nvram_pagesize = SST_25VF0X0_PAGE_SIZE;
11491                         break;
11492                 }
11493         } else {
11494                 tp->nvram_jedecnum = JEDEC_ATMEL;
11495                 tp->nvram_pagesize = ATMEL_AT45DB0X1B_PAGE_SIZE;
11496                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11497         }
11498 }
11499
11500 static void __devinit tg3_nvram_get_pagesize(struct tg3 *tp, u32 nvmcfg1)
11501 {
11502         switch (nvmcfg1 & NVRAM_CFG1_5752PAGE_SIZE_MASK) {
11503         case FLASH_5752PAGE_SIZE_256:
11504                 tp->nvram_pagesize = 256;
11505                 break;
11506         case FLASH_5752PAGE_SIZE_512:
11507                 tp->nvram_pagesize = 512;
11508                 break;
11509         case FLASH_5752PAGE_SIZE_1K:
11510                 tp->nvram_pagesize = 1024;
11511                 break;
11512         case FLASH_5752PAGE_SIZE_2K:
11513                 tp->nvram_pagesize = 2048;
11514                 break;
11515         case FLASH_5752PAGE_SIZE_4K:
11516                 tp->nvram_pagesize = 4096;
11517                 break;
11518         case FLASH_5752PAGE_SIZE_264:
11519                 tp->nvram_pagesize = 264;
11520                 break;
11521         case FLASH_5752PAGE_SIZE_528:
11522                 tp->nvram_pagesize = 528;
11523                 break;
11524         }
11525 }
11526
11527 static void __devinit tg3_get_5752_nvram_info(struct tg3 *tp)
11528 {
11529         u32 nvcfg1;
11530
11531         nvcfg1 = tr32(NVRAM_CFG1);
11532
11533         /* NVRAM protection for TPM */
11534         if (nvcfg1 & (1 << 27))
11535                 tp->tg3_flags3 |= TG3_FLG3_PROTECTED_NVRAM;
11536
11537         switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11538         case FLASH_5752VENDOR_ATMEL_EEPROM_64KHZ:
11539         case FLASH_5752VENDOR_ATMEL_EEPROM_376KHZ:
11540                 tp->nvram_jedecnum = JEDEC_ATMEL;
11541                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11542                 break;
11543         case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
11544                 tp->nvram_jedecnum = JEDEC_ATMEL;
11545                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11546                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11547                 break;
11548         case FLASH_5752VENDOR_ST_M45PE10:
11549         case FLASH_5752VENDOR_ST_M45PE20:
11550         case FLASH_5752VENDOR_ST_M45PE40:
11551                 tp->nvram_jedecnum = JEDEC_ST;
11552                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11553                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11554                 break;
11555         }
11556
11557         if (tp->tg3_flags2 & TG3_FLG2_FLASH) {
11558                 tg3_nvram_get_pagesize(tp, nvcfg1);
11559         } else {
11560                 /* For eeprom, set pagesize to maximum eeprom size */
11561                 tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
11562
11563                 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
11564                 tw32(NVRAM_CFG1, nvcfg1);
11565         }
11566 }
11567
11568 static void __devinit tg3_get_5755_nvram_info(struct tg3 *tp)
11569 {
11570         u32 nvcfg1, protect = 0;
11571
11572         nvcfg1 = tr32(NVRAM_CFG1);
11573
11574         /* NVRAM protection for TPM */
11575         if (nvcfg1 & (1 << 27)) {
11576                 tp->tg3_flags3 |= TG3_FLG3_PROTECTED_NVRAM;
11577                 protect = 1;
11578         }
11579
11580         nvcfg1 &= NVRAM_CFG1_5752VENDOR_MASK;
11581         switch (nvcfg1) {
11582         case FLASH_5755VENDOR_ATMEL_FLASH_1:
11583         case FLASH_5755VENDOR_ATMEL_FLASH_2:
11584         case FLASH_5755VENDOR_ATMEL_FLASH_3:
11585         case FLASH_5755VENDOR_ATMEL_FLASH_5:
11586                 tp->nvram_jedecnum = JEDEC_ATMEL;
11587                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11588                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11589                 tp->nvram_pagesize = 264;
11590                 if (nvcfg1 == FLASH_5755VENDOR_ATMEL_FLASH_1 ||
11591                     nvcfg1 == FLASH_5755VENDOR_ATMEL_FLASH_5)
11592                         tp->nvram_size = (protect ? 0x3e200 :
11593                                           TG3_NVRAM_SIZE_512KB);
11594                 else if (nvcfg1 == FLASH_5755VENDOR_ATMEL_FLASH_2)
11595                         tp->nvram_size = (protect ? 0x1f200 :
11596                                           TG3_NVRAM_SIZE_256KB);
11597                 else
11598                         tp->nvram_size = (protect ? 0x1f200 :
11599                                           TG3_NVRAM_SIZE_128KB);
11600                 break;
11601         case FLASH_5752VENDOR_ST_M45PE10:
11602         case FLASH_5752VENDOR_ST_M45PE20:
11603         case FLASH_5752VENDOR_ST_M45PE40:
11604                 tp->nvram_jedecnum = JEDEC_ST;
11605                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11606                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11607                 tp->nvram_pagesize = 256;
11608                 if (nvcfg1 == FLASH_5752VENDOR_ST_M45PE10)
11609                         tp->nvram_size = (protect ?
11610                                           TG3_NVRAM_SIZE_64KB :
11611                                           TG3_NVRAM_SIZE_128KB);
11612                 else if (nvcfg1 == FLASH_5752VENDOR_ST_M45PE20)
11613                         tp->nvram_size = (protect ?
11614                                           TG3_NVRAM_SIZE_64KB :
11615                                           TG3_NVRAM_SIZE_256KB);
11616                 else
11617                         tp->nvram_size = (protect ?
11618                                           TG3_NVRAM_SIZE_128KB :
11619                                           TG3_NVRAM_SIZE_512KB);
11620                 break;
11621         }
11622 }
11623
11624 static void __devinit tg3_get_5787_nvram_info(struct tg3 *tp)
11625 {
11626         u32 nvcfg1;
11627
11628         nvcfg1 = tr32(NVRAM_CFG1);
11629
11630         switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11631         case FLASH_5787VENDOR_ATMEL_EEPROM_64KHZ:
11632         case FLASH_5787VENDOR_ATMEL_EEPROM_376KHZ:
11633         case FLASH_5787VENDOR_MICRO_EEPROM_64KHZ:
11634         case FLASH_5787VENDOR_MICRO_EEPROM_376KHZ:
11635                 tp->nvram_jedecnum = JEDEC_ATMEL;
11636                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11637                 tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
11638
11639                 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
11640                 tw32(NVRAM_CFG1, nvcfg1);
11641                 break;
11642         case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
11643         case FLASH_5755VENDOR_ATMEL_FLASH_1:
11644         case FLASH_5755VENDOR_ATMEL_FLASH_2:
11645         case FLASH_5755VENDOR_ATMEL_FLASH_3:
11646                 tp->nvram_jedecnum = JEDEC_ATMEL;
11647                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11648                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11649                 tp->nvram_pagesize = 264;
11650                 break;
11651         case FLASH_5752VENDOR_ST_M45PE10:
11652         case FLASH_5752VENDOR_ST_M45PE20:
11653         case FLASH_5752VENDOR_ST_M45PE40:
11654                 tp->nvram_jedecnum = JEDEC_ST;
11655                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11656                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11657                 tp->nvram_pagesize = 256;
11658                 break;
11659         }
11660 }
11661
11662 static void __devinit tg3_get_5761_nvram_info(struct tg3 *tp)
11663 {
11664         u32 nvcfg1, protect = 0;
11665
11666         nvcfg1 = tr32(NVRAM_CFG1);
11667
11668         /* NVRAM protection for TPM */
11669         if (nvcfg1 & (1 << 27)) {
11670                 tp->tg3_flags3 |= TG3_FLG3_PROTECTED_NVRAM;
11671                 protect = 1;
11672         }
11673
11674         nvcfg1 &= NVRAM_CFG1_5752VENDOR_MASK;
11675         switch (nvcfg1) {
11676         case FLASH_5761VENDOR_ATMEL_ADB021D:
11677         case FLASH_5761VENDOR_ATMEL_ADB041D:
11678         case FLASH_5761VENDOR_ATMEL_ADB081D:
11679         case FLASH_5761VENDOR_ATMEL_ADB161D:
11680         case FLASH_5761VENDOR_ATMEL_MDB021D:
11681         case FLASH_5761VENDOR_ATMEL_MDB041D:
11682         case FLASH_5761VENDOR_ATMEL_MDB081D:
11683         case FLASH_5761VENDOR_ATMEL_MDB161D:
11684                 tp->nvram_jedecnum = JEDEC_ATMEL;
11685                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11686                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11687                 tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM_ADDR_TRANS;
11688                 tp->nvram_pagesize = 256;
11689                 break;
11690         case FLASH_5761VENDOR_ST_A_M45PE20:
11691         case FLASH_5761VENDOR_ST_A_M45PE40:
11692         case FLASH_5761VENDOR_ST_A_M45PE80:
11693         case FLASH_5761VENDOR_ST_A_M45PE16:
11694         case FLASH_5761VENDOR_ST_M_M45PE20:
11695         case FLASH_5761VENDOR_ST_M_M45PE40:
11696         case FLASH_5761VENDOR_ST_M_M45PE80:
11697         case FLASH_5761VENDOR_ST_M_M45PE16:
11698                 tp->nvram_jedecnum = JEDEC_ST;
11699                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11700                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11701                 tp->nvram_pagesize = 256;
11702                 break;
11703         }
11704
11705         if (protect) {
11706                 tp->nvram_size = tr32(NVRAM_ADDR_LOCKOUT);
11707         } else {
11708                 switch (nvcfg1) {
11709                 case FLASH_5761VENDOR_ATMEL_ADB161D:
11710                 case FLASH_5761VENDOR_ATMEL_MDB161D:
11711                 case FLASH_5761VENDOR_ST_A_M45PE16:
11712                 case FLASH_5761VENDOR_ST_M_M45PE16:
11713                         tp->nvram_size = TG3_NVRAM_SIZE_2MB;
11714                         break;
11715                 case FLASH_5761VENDOR_ATMEL_ADB081D:
11716                 case FLASH_5761VENDOR_ATMEL_MDB081D:
11717                 case FLASH_5761VENDOR_ST_A_M45PE80:
11718                 case FLASH_5761VENDOR_ST_M_M45PE80:
11719                         tp->nvram_size = TG3_NVRAM_SIZE_1MB;
11720                         break;
11721                 case FLASH_5761VENDOR_ATMEL_ADB041D:
11722                 case FLASH_5761VENDOR_ATMEL_MDB041D:
11723                 case FLASH_5761VENDOR_ST_A_M45PE40:
11724                 case FLASH_5761VENDOR_ST_M_M45PE40:
11725                         tp->nvram_size = TG3_NVRAM_SIZE_512KB;
11726                         break;
11727                 case FLASH_5761VENDOR_ATMEL_ADB021D:
11728                 case FLASH_5761VENDOR_ATMEL_MDB021D:
11729                 case FLASH_5761VENDOR_ST_A_M45PE20:
11730                 case FLASH_5761VENDOR_ST_M_M45PE20:
11731                         tp->nvram_size = TG3_NVRAM_SIZE_256KB;
11732                         break;
11733                 }
11734         }
11735 }
11736
11737 static void __devinit tg3_get_5906_nvram_info(struct tg3 *tp)
11738 {
11739         tp->nvram_jedecnum = JEDEC_ATMEL;
11740         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11741         tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
11742 }
11743
11744 static void __devinit tg3_get_57780_nvram_info(struct tg3 *tp)
11745 {
11746         u32 nvcfg1;
11747
11748         nvcfg1 = tr32(NVRAM_CFG1);
11749
11750         switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11751         case FLASH_5787VENDOR_ATMEL_EEPROM_376KHZ:
11752         case FLASH_5787VENDOR_MICRO_EEPROM_376KHZ:
11753                 tp->nvram_jedecnum = JEDEC_ATMEL;
11754                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11755                 tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
11756
11757                 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
11758                 tw32(NVRAM_CFG1, nvcfg1);
11759                 return;
11760         case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
11761         case FLASH_57780VENDOR_ATMEL_AT45DB011D:
11762         case FLASH_57780VENDOR_ATMEL_AT45DB011B:
11763         case FLASH_57780VENDOR_ATMEL_AT45DB021D:
11764         case FLASH_57780VENDOR_ATMEL_AT45DB021B:
11765         case FLASH_57780VENDOR_ATMEL_AT45DB041D:
11766         case FLASH_57780VENDOR_ATMEL_AT45DB041B:
11767                 tp->nvram_jedecnum = JEDEC_ATMEL;
11768                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11769                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11770
11771                 switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11772                 case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
11773                 case FLASH_57780VENDOR_ATMEL_AT45DB011D:
11774                 case FLASH_57780VENDOR_ATMEL_AT45DB011B:
11775                         tp->nvram_size = TG3_NVRAM_SIZE_128KB;
11776                         break;
11777                 case FLASH_57780VENDOR_ATMEL_AT45DB021D:
11778                 case FLASH_57780VENDOR_ATMEL_AT45DB021B:
11779                         tp->nvram_size = TG3_NVRAM_SIZE_256KB;
11780                         break;
11781                 case FLASH_57780VENDOR_ATMEL_AT45DB041D:
11782                 case FLASH_57780VENDOR_ATMEL_AT45DB041B:
11783                         tp->nvram_size = TG3_NVRAM_SIZE_512KB;
11784                         break;
11785                 }
11786                 break;
11787         case FLASH_5752VENDOR_ST_M45PE10:
11788         case FLASH_5752VENDOR_ST_M45PE20:
11789         case FLASH_5752VENDOR_ST_M45PE40:
11790                 tp->nvram_jedecnum = JEDEC_ST;
11791                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11792                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11793
11794                 switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11795                 case FLASH_5752VENDOR_ST_M45PE10:
11796                         tp->nvram_size = TG3_NVRAM_SIZE_128KB;
11797                         break;
11798                 case FLASH_5752VENDOR_ST_M45PE20:
11799                         tp->nvram_size = TG3_NVRAM_SIZE_256KB;
11800                         break;
11801                 case FLASH_5752VENDOR_ST_M45PE40:
11802                         tp->nvram_size = TG3_NVRAM_SIZE_512KB;
11803                         break;
11804                 }
11805                 break;
11806         default:
11807                 tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM;
11808                 return;
11809         }
11810
11811         tg3_nvram_get_pagesize(tp, nvcfg1);
11812         if (tp->nvram_pagesize != 264 && tp->nvram_pagesize != 528)
11813                 tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM_ADDR_TRANS;
11814 }
11815
11816
11817 static void __devinit tg3_get_5717_nvram_info(struct tg3 *tp)
11818 {
11819         u32 nvcfg1;
11820
11821         nvcfg1 = tr32(NVRAM_CFG1);
11822
11823         switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11824         case FLASH_5717VENDOR_ATMEL_EEPROM:
11825         case FLASH_5717VENDOR_MICRO_EEPROM:
11826                 tp->nvram_jedecnum = JEDEC_ATMEL;
11827                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11828                 tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
11829
11830                 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
11831                 tw32(NVRAM_CFG1, nvcfg1);
11832                 return;
11833         case FLASH_5717VENDOR_ATMEL_MDB011D:
11834         case FLASH_5717VENDOR_ATMEL_ADB011B:
11835         case FLASH_5717VENDOR_ATMEL_ADB011D:
11836         case FLASH_5717VENDOR_ATMEL_MDB021D:
11837         case FLASH_5717VENDOR_ATMEL_ADB021B:
11838         case FLASH_5717VENDOR_ATMEL_ADB021D:
11839         case FLASH_5717VENDOR_ATMEL_45USPT:
11840                 tp->nvram_jedecnum = JEDEC_ATMEL;
11841                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11842                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11843
11844                 switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11845                 case FLASH_5717VENDOR_ATMEL_MDB021D:
11846                 case FLASH_5717VENDOR_ATMEL_ADB021B:
11847                 case FLASH_5717VENDOR_ATMEL_ADB021D:
11848                         tp->nvram_size = TG3_NVRAM_SIZE_256KB;
11849                         break;
11850                 default:
11851                         tp->nvram_size = TG3_NVRAM_SIZE_128KB;
11852                         break;
11853                 }
11854                 break;
11855         case FLASH_5717VENDOR_ST_M_M25PE10:
11856         case FLASH_5717VENDOR_ST_A_M25PE10:
11857         case FLASH_5717VENDOR_ST_M_M45PE10:
11858         case FLASH_5717VENDOR_ST_A_M45PE10:
11859         case FLASH_5717VENDOR_ST_M_M25PE20:
11860         case FLASH_5717VENDOR_ST_A_M25PE20:
11861         case FLASH_5717VENDOR_ST_M_M45PE20:
11862         case FLASH_5717VENDOR_ST_A_M45PE20:
11863         case FLASH_5717VENDOR_ST_25USPT:
11864         case FLASH_5717VENDOR_ST_45USPT:
11865                 tp->nvram_jedecnum = JEDEC_ST;
11866                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11867                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11868
11869                 switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11870                 case FLASH_5717VENDOR_ST_M_M25PE20:
11871                 case FLASH_5717VENDOR_ST_A_M25PE20:
11872                 case FLASH_5717VENDOR_ST_M_M45PE20:
11873                 case FLASH_5717VENDOR_ST_A_M45PE20:
11874                         tp->nvram_size = TG3_NVRAM_SIZE_256KB;
11875                         break;
11876                 default:
11877                         tp->nvram_size = TG3_NVRAM_SIZE_128KB;
11878                         break;
11879                 }
11880                 break;
11881         default:
11882                 tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM;
11883                 return;
11884         }
11885
11886         tg3_nvram_get_pagesize(tp, nvcfg1);
11887         if (tp->nvram_pagesize != 264 && tp->nvram_pagesize != 528)
11888                 tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM_ADDR_TRANS;
11889 }
11890
11891 /* Chips other than 5700/5701 use the NVRAM for fetching info. */
11892 static void __devinit tg3_nvram_init(struct tg3 *tp)
11893 {
11894         tw32_f(GRC_EEPROM_ADDR,
11895              (EEPROM_ADDR_FSM_RESET |
11896               (EEPROM_DEFAULT_CLOCK_PERIOD <<
11897                EEPROM_ADDR_CLKPERD_SHIFT)));
11898
11899         msleep(1);
11900
11901         /* Enable seeprom accesses. */
11902         tw32_f(GRC_LOCAL_CTRL,
11903              tr32(GRC_LOCAL_CTRL) | GRC_LCLCTRL_AUTO_SEEPROM);
11904         udelay(100);
11905
11906         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
11907             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701) {
11908                 tp->tg3_flags |= TG3_FLAG_NVRAM;
11909
11910                 if (tg3_nvram_lock(tp)) {
11911                         netdev_warn(tp->dev,
11912                                     "Cannot get nvram lock, %s failed\n",
11913                                     __func__);
11914                         return;
11915                 }
11916                 tg3_enable_nvram_access(tp);
11917
11918                 tp->nvram_size = 0;
11919
11920                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752)
11921                         tg3_get_5752_nvram_info(tp);
11922                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755)
11923                         tg3_get_5755_nvram_info(tp);
11924                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5787 ||
11925                          GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
11926                          GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
11927                         tg3_get_5787_nvram_info(tp);
11928                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761)
11929                         tg3_get_5761_nvram_info(tp);
11930                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
11931                         tg3_get_5906_nvram_info(tp);
11932                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 ||
11933                          GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
11934                         tg3_get_57780_nvram_info(tp);
11935                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
11936                          GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719)
11937                         tg3_get_5717_nvram_info(tp);
11938                 else
11939                         tg3_get_nvram_info(tp);
11940
11941                 if (tp->nvram_size == 0)
11942                         tg3_get_nvram_size(tp);
11943
11944                 tg3_disable_nvram_access(tp);
11945                 tg3_nvram_unlock(tp);
11946
11947         } else {
11948                 tp->tg3_flags &= ~(TG3_FLAG_NVRAM | TG3_FLAG_NVRAM_BUFFERED);
11949
11950                 tg3_get_eeprom_size(tp);
11951         }
11952 }
11953
11954 static int tg3_nvram_write_block_using_eeprom(struct tg3 *tp,
11955                                     u32 offset, u32 len, u8 *buf)
11956 {
11957         int i, j, rc = 0;
11958         u32 val;
11959
11960         for (i = 0; i < len; i += 4) {
11961                 u32 addr;
11962                 __be32 data;
11963
11964                 addr = offset + i;
11965
11966                 memcpy(&data, buf + i, 4);
11967
11968                 /*
11969                  * The SEEPROM interface expects the data to always be opposite
11970                  * the native endian format.  We accomplish this by reversing
11971                  * all the operations that would have been performed on the
11972                  * data from a call to tg3_nvram_read_be32().
11973                  */
11974                 tw32(GRC_EEPROM_DATA, swab32(be32_to_cpu(data)));
11975
11976                 val = tr32(GRC_EEPROM_ADDR);
11977                 tw32(GRC_EEPROM_ADDR, val | EEPROM_ADDR_COMPLETE);
11978
11979                 val &= ~(EEPROM_ADDR_ADDR_MASK | EEPROM_ADDR_DEVID_MASK |
11980                         EEPROM_ADDR_READ);
11981                 tw32(GRC_EEPROM_ADDR, val |
11982                         (0 << EEPROM_ADDR_DEVID_SHIFT) |
11983                         (addr & EEPROM_ADDR_ADDR_MASK) |
11984                         EEPROM_ADDR_START |
11985                         EEPROM_ADDR_WRITE);
11986
11987                 for (j = 0; j < 1000; j++) {
11988                         val = tr32(GRC_EEPROM_ADDR);
11989
11990                         if (val & EEPROM_ADDR_COMPLETE)
11991                                 break;
11992                         msleep(1);
11993                 }
11994                 if (!(val & EEPROM_ADDR_COMPLETE)) {
11995                         rc = -EBUSY;
11996                         break;
11997                 }
11998         }
11999
12000         return rc;
12001 }
12002
12003 /* offset and length are dword aligned */
12004 static int tg3_nvram_write_block_unbuffered(struct tg3 *tp, u32 offset, u32 len,
12005                 u8 *buf)
12006 {
12007         int ret = 0;
12008         u32 pagesize = tp->nvram_pagesize;
12009         u32 pagemask = pagesize - 1;
12010         u32 nvram_cmd;
12011         u8 *tmp;
12012
12013         tmp = kmalloc(pagesize, GFP_KERNEL);
12014         if (tmp == NULL)
12015                 return -ENOMEM;
12016
12017         while (len) {
12018                 int j;
12019                 u32 phy_addr, page_off, size;
12020
12021                 phy_addr = offset & ~pagemask;
12022
12023                 for (j = 0; j < pagesize; j += 4) {
12024                         ret = tg3_nvram_read_be32(tp, phy_addr + j,
12025                                                   (__be32 *) (tmp + j));
12026                         if (ret)
12027                                 break;
12028                 }
12029                 if (ret)
12030                         break;
12031
12032                 page_off = offset & pagemask;
12033                 size = pagesize;
12034                 if (len < size)
12035                         size = len;
12036
12037                 len -= size;
12038
12039                 memcpy(tmp + page_off, buf, size);
12040
12041                 offset = offset + (pagesize - page_off);
12042
12043                 tg3_enable_nvram_access(tp);
12044
12045                 /*
12046                  * Before we can erase the flash page, we need
12047                  * to issue a special "write enable" command.
12048                  */
12049                 nvram_cmd = NVRAM_CMD_WREN | NVRAM_CMD_GO | NVRAM_CMD_DONE;
12050
12051                 if (tg3_nvram_exec_cmd(tp, nvram_cmd))
12052                         break;
12053
12054                 /* Erase the target page */
12055                 tw32(NVRAM_ADDR, phy_addr);
12056
12057                 nvram_cmd = NVRAM_CMD_GO | NVRAM_CMD_DONE | NVRAM_CMD_WR |
12058                         NVRAM_CMD_FIRST | NVRAM_CMD_LAST | NVRAM_CMD_ERASE;
12059
12060                 if (tg3_nvram_exec_cmd(tp, nvram_cmd))
12061                         break;
12062
12063                 /* Issue another write enable to start the write. */
12064                 nvram_cmd = NVRAM_CMD_WREN | NVRAM_CMD_GO | NVRAM_CMD_DONE;
12065
12066                 if (tg3_nvram_exec_cmd(tp, nvram_cmd))
12067                         break;
12068
12069                 for (j = 0; j < pagesize; j += 4) {
12070                         __be32 data;
12071
12072                         data = *((__be32 *) (tmp + j));
12073
12074                         tw32(NVRAM_WRDATA, be32_to_cpu(data));
12075
12076                         tw32(NVRAM_ADDR, phy_addr + j);
12077
12078                         nvram_cmd = NVRAM_CMD_GO | NVRAM_CMD_DONE |
12079                                 NVRAM_CMD_WR;
12080
12081                         if (j == 0)
12082                                 nvram_cmd |= NVRAM_CMD_FIRST;
12083                         else if (j == (pagesize - 4))
12084                                 nvram_cmd |= NVRAM_CMD_LAST;
12085
12086                         if ((ret = tg3_nvram_exec_cmd(tp, nvram_cmd)))
12087                                 break;
12088                 }
12089                 if (ret)
12090                         break;
12091         }
12092
12093         nvram_cmd = NVRAM_CMD_WRDI | NVRAM_CMD_GO | NVRAM_CMD_DONE;
12094         tg3_nvram_exec_cmd(tp, nvram_cmd);
12095
12096         kfree(tmp);
12097
12098         return ret;
12099 }
12100
12101 /* offset and length are dword aligned */
12102 static int tg3_nvram_write_block_buffered(struct tg3 *tp, u32 offset, u32 len,
12103                 u8 *buf)
12104 {
12105         int i, ret = 0;
12106
12107         for (i = 0; i < len; i += 4, offset += 4) {
12108                 u32 page_off, phy_addr, nvram_cmd;
12109                 __be32 data;
12110
12111                 memcpy(&data, buf + i, 4);
12112                 tw32(NVRAM_WRDATA, be32_to_cpu(data));
12113
12114                 page_off = offset % tp->nvram_pagesize;
12115
12116                 phy_addr = tg3_nvram_phys_addr(tp, offset);
12117
12118                 tw32(NVRAM_ADDR, phy_addr);
12119
12120                 nvram_cmd = NVRAM_CMD_GO | NVRAM_CMD_DONE | NVRAM_CMD_WR;
12121
12122                 if (page_off == 0 || i == 0)
12123                         nvram_cmd |= NVRAM_CMD_FIRST;
12124                 if (page_off == (tp->nvram_pagesize - 4))
12125                         nvram_cmd |= NVRAM_CMD_LAST;
12126
12127                 if (i == (len - 4))
12128                         nvram_cmd |= NVRAM_CMD_LAST;
12129
12130                 if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5752 &&
12131                     !(tp->tg3_flags3 & TG3_FLG3_5755_PLUS) &&
12132                     (tp->nvram_jedecnum == JEDEC_ST) &&
12133                     (nvram_cmd & NVRAM_CMD_FIRST)) {
12134
12135                         if ((ret = tg3_nvram_exec_cmd(tp,
12136                                 NVRAM_CMD_WREN | NVRAM_CMD_GO |
12137                                 NVRAM_CMD_DONE)))
12138
12139                                 break;
12140                 }
12141                 if (!(tp->tg3_flags2 & TG3_FLG2_FLASH)) {
12142                         /* We always do complete word writes to eeprom. */
12143                         nvram_cmd |= (NVRAM_CMD_FIRST | NVRAM_CMD_LAST);
12144                 }
12145
12146                 if ((ret = tg3_nvram_exec_cmd(tp, nvram_cmd)))
12147                         break;
12148         }
12149         return ret;
12150 }
12151
12152 /* offset and length are dword aligned */
12153 static int tg3_nvram_write_block(struct tg3 *tp, u32 offset, u32 len, u8 *buf)
12154 {
12155         int ret;
12156
12157         if (tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT) {
12158                 tw32_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl &
12159                        ~GRC_LCLCTRL_GPIO_OUTPUT1);
12160                 udelay(40);
12161         }
12162
12163         if (!(tp->tg3_flags & TG3_FLAG_NVRAM)) {
12164                 ret = tg3_nvram_write_block_using_eeprom(tp, offset, len, buf);
12165         } else {
12166                 u32 grc_mode;
12167
12168                 ret = tg3_nvram_lock(tp);
12169                 if (ret)
12170                         return ret;
12171
12172                 tg3_enable_nvram_access(tp);
12173                 if ((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
12174                     !(tp->tg3_flags3 & TG3_FLG3_PROTECTED_NVRAM))
12175                         tw32(NVRAM_WRITE1, 0x406);
12176
12177                 grc_mode = tr32(GRC_MODE);
12178                 tw32(GRC_MODE, grc_mode | GRC_MODE_NVRAM_WR_ENABLE);
12179
12180                 if ((tp->tg3_flags & TG3_FLAG_NVRAM_BUFFERED) ||
12181                         !(tp->tg3_flags2 & TG3_FLG2_FLASH)) {
12182
12183                         ret = tg3_nvram_write_block_buffered(tp, offset, len,
12184                                 buf);
12185                 } else {
12186                         ret = tg3_nvram_write_block_unbuffered(tp, offset, len,
12187                                 buf);
12188                 }
12189
12190                 grc_mode = tr32(GRC_MODE);
12191                 tw32(GRC_MODE, grc_mode & ~GRC_MODE_NVRAM_WR_ENABLE);
12192
12193                 tg3_disable_nvram_access(tp);
12194                 tg3_nvram_unlock(tp);
12195         }
12196
12197         if (tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT) {
12198                 tw32_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl);
12199                 udelay(40);
12200         }
12201
12202         return ret;
12203 }
12204
12205 struct subsys_tbl_ent {
12206         u16 subsys_vendor, subsys_devid;
12207         u32 phy_id;
12208 };
12209
12210 static struct subsys_tbl_ent subsys_id_to_phy_id[] __devinitdata = {
12211         /* Broadcom boards. */
12212         { TG3PCI_SUBVENDOR_ID_BROADCOM,
12213           TG3PCI_SUBDEVICE_ID_BROADCOM_95700A6, TG3_PHY_ID_BCM5401 },
12214         { TG3PCI_SUBVENDOR_ID_BROADCOM,
12215           TG3PCI_SUBDEVICE_ID_BROADCOM_95701A5, TG3_PHY_ID_BCM5701 },
12216         { TG3PCI_SUBVENDOR_ID_BROADCOM,
12217           TG3PCI_SUBDEVICE_ID_BROADCOM_95700T6, TG3_PHY_ID_BCM8002 },
12218         { TG3PCI_SUBVENDOR_ID_BROADCOM,
12219           TG3PCI_SUBDEVICE_ID_BROADCOM_95700A9, 0 },
12220         { TG3PCI_SUBVENDOR_ID_BROADCOM,
12221           TG3PCI_SUBDEVICE_ID_BROADCOM_95701T1, TG3_PHY_ID_BCM5701 },
12222         { TG3PCI_SUBVENDOR_ID_BROADCOM,
12223           TG3PCI_SUBDEVICE_ID_BROADCOM_95701T8, TG3_PHY_ID_BCM5701 },
12224         { TG3PCI_SUBVENDOR_ID_BROADCOM,
12225           TG3PCI_SUBDEVICE_ID_BROADCOM_95701A7, 0 },
12226         { TG3PCI_SUBVENDOR_ID_BROADCOM,
12227           TG3PCI_SUBDEVICE_ID_BROADCOM_95701A10, TG3_PHY_ID_BCM5701 },
12228         { TG3PCI_SUBVENDOR_ID_BROADCOM,
12229           TG3PCI_SUBDEVICE_ID_BROADCOM_95701A12, TG3_PHY_ID_BCM5701 },
12230         { TG3PCI_SUBVENDOR_ID_BROADCOM,
12231           TG3PCI_SUBDEVICE_ID_BROADCOM_95703AX1, TG3_PHY_ID_BCM5703 },
12232         { TG3PCI_SUBVENDOR_ID_BROADCOM,
12233           TG3PCI_SUBDEVICE_ID_BROADCOM_95703AX2, TG3_PHY_ID_BCM5703 },
12234
12235         /* 3com boards. */
12236         { TG3PCI_SUBVENDOR_ID_3COM,
12237           TG3PCI_SUBDEVICE_ID_3COM_3C996T, TG3_PHY_ID_BCM5401 },
12238         { TG3PCI_SUBVENDOR_ID_3COM,
12239           TG3PCI_SUBDEVICE_ID_3COM_3C996BT, TG3_PHY_ID_BCM5701 },
12240         { TG3PCI_SUBVENDOR_ID_3COM,
12241           TG3PCI_SUBDEVICE_ID_3COM_3C996SX, 0 },
12242         { TG3PCI_SUBVENDOR_ID_3COM,
12243           TG3PCI_SUBDEVICE_ID_3COM_3C1000T, TG3_PHY_ID_BCM5701 },
12244         { TG3PCI_SUBVENDOR_ID_3COM,
12245           TG3PCI_SUBDEVICE_ID_3COM_3C940BR01, TG3_PHY_ID_BCM5701 },
12246
12247         /* DELL boards. */
12248         { TG3PCI_SUBVENDOR_ID_DELL,
12249           TG3PCI_SUBDEVICE_ID_DELL_VIPER, TG3_PHY_ID_BCM5401 },
12250         { TG3PCI_SUBVENDOR_ID_DELL,
12251           TG3PCI_SUBDEVICE_ID_DELL_JAGUAR, TG3_PHY_ID_BCM5401 },
12252         { TG3PCI_SUBVENDOR_ID_DELL,
12253           TG3PCI_SUBDEVICE_ID_DELL_MERLOT, TG3_PHY_ID_BCM5411 },
12254         { TG3PCI_SUBVENDOR_ID_DELL,
12255           TG3PCI_SUBDEVICE_ID_DELL_SLIM_MERLOT, TG3_PHY_ID_BCM5411 },
12256
12257         /* Compaq boards. */
12258         { TG3PCI_SUBVENDOR_ID_COMPAQ,
12259           TG3PCI_SUBDEVICE_ID_COMPAQ_BANSHEE, TG3_PHY_ID_BCM5701 },
12260         { TG3PCI_SUBVENDOR_ID_COMPAQ,
12261           TG3PCI_SUBDEVICE_ID_COMPAQ_BANSHEE_2, TG3_PHY_ID_BCM5701 },
12262         { TG3PCI_SUBVENDOR_ID_COMPAQ,
12263           TG3PCI_SUBDEVICE_ID_COMPAQ_CHANGELING, 0 },
12264         { TG3PCI_SUBVENDOR_ID_COMPAQ,
12265           TG3PCI_SUBDEVICE_ID_COMPAQ_NC7780, TG3_PHY_ID_BCM5701 },
12266         { TG3PCI_SUBVENDOR_ID_COMPAQ,
12267           TG3PCI_SUBDEVICE_ID_COMPAQ_NC7780_2, TG3_PHY_ID_BCM5701 },
12268
12269         /* IBM boards. */
12270         { TG3PCI_SUBVENDOR_ID_IBM,
12271           TG3PCI_SUBDEVICE_ID_IBM_5703SAX2, 0 }
12272 };
12273
12274 static struct subsys_tbl_ent * __devinit tg3_lookup_by_subsys(struct tg3 *tp)
12275 {
12276         int i;
12277
12278         for (i = 0; i < ARRAY_SIZE(subsys_id_to_phy_id); i++) {
12279                 if ((subsys_id_to_phy_id[i].subsys_vendor ==
12280                      tp->pdev->subsystem_vendor) &&
12281                     (subsys_id_to_phy_id[i].subsys_devid ==
12282                      tp->pdev->subsystem_device))
12283                         return &subsys_id_to_phy_id[i];
12284         }
12285         return NULL;
12286 }
12287
12288 static void __devinit tg3_get_eeprom_hw_cfg(struct tg3 *tp)
12289 {
12290         u32 val;
12291         u16 pmcsr;
12292
12293         /* On some early chips the SRAM cannot be accessed in D3hot state,
12294          * so need make sure we're in D0.
12295          */
12296         pci_read_config_word(tp->pdev, tp->pm_cap + PCI_PM_CTRL, &pmcsr);
12297         pmcsr &= ~PCI_PM_CTRL_STATE_MASK;
12298         pci_write_config_word(tp->pdev, tp->pm_cap + PCI_PM_CTRL, pmcsr);
12299         msleep(1);
12300
12301         /* Make sure register accesses (indirect or otherwise)
12302          * will function correctly.
12303          */
12304         pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
12305                                tp->misc_host_ctrl);
12306
12307         /* The memory arbiter has to be enabled in order for SRAM accesses
12308          * to succeed.  Normally on powerup the tg3 chip firmware will make
12309          * sure it is enabled, but other entities such as system netboot
12310          * code might disable it.
12311          */
12312         val = tr32(MEMARB_MODE);
12313         tw32(MEMARB_MODE, val | MEMARB_MODE_ENABLE);
12314
12315         tp->phy_id = TG3_PHY_ID_INVALID;
12316         tp->led_ctrl = LED_CTRL_MODE_PHY_1;
12317
12318         /* Assume an onboard device and WOL capable by default.  */
12319         tp->tg3_flags |= TG3_FLAG_EEPROM_WRITE_PROT | TG3_FLAG_WOL_CAP;
12320
12321         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
12322                 if (!(tr32(PCIE_TRANSACTION_CFG) & PCIE_TRANS_CFG_LOM)) {
12323                         tp->tg3_flags &= ~TG3_FLAG_EEPROM_WRITE_PROT;
12324                         tp->tg3_flags2 |= TG3_FLG2_IS_NIC;
12325                 }
12326                 val = tr32(VCPU_CFGSHDW);
12327                 if (val & VCPU_CFGSHDW_ASPM_DBNC)
12328                         tp->tg3_flags |= TG3_FLAG_ASPM_WORKAROUND;
12329                 if ((val & VCPU_CFGSHDW_WOL_ENABLE) &&
12330                     (val & VCPU_CFGSHDW_WOL_MAGPKT))
12331                         tp->tg3_flags |= TG3_FLAG_WOL_ENABLE;
12332                 goto done;
12333         }
12334
12335         tg3_read_mem(tp, NIC_SRAM_DATA_SIG, &val);
12336         if (val == NIC_SRAM_DATA_SIG_MAGIC) {
12337                 u32 nic_cfg, led_cfg;
12338                 u32 nic_phy_id, ver, cfg2 = 0, cfg4 = 0, eeprom_phy_id;
12339                 int eeprom_phy_serdes = 0;
12340
12341                 tg3_read_mem(tp, NIC_SRAM_DATA_CFG, &nic_cfg);
12342                 tp->nic_sram_data_cfg = nic_cfg;
12343
12344                 tg3_read_mem(tp, NIC_SRAM_DATA_VER, &ver);
12345                 ver >>= NIC_SRAM_DATA_VER_SHIFT;
12346                 if ((GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700) &&
12347                     (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701) &&
12348                     (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5703) &&
12349                     (ver > 0) && (ver < 0x100))
12350                         tg3_read_mem(tp, NIC_SRAM_DATA_CFG_2, &cfg2);
12351
12352                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
12353                         tg3_read_mem(tp, NIC_SRAM_DATA_CFG_4, &cfg4);
12354
12355                 if ((nic_cfg & NIC_SRAM_DATA_CFG_PHY_TYPE_MASK) ==
12356                     NIC_SRAM_DATA_CFG_PHY_TYPE_FIBER)
12357                         eeprom_phy_serdes = 1;
12358
12359                 tg3_read_mem(tp, NIC_SRAM_DATA_PHY_ID, &nic_phy_id);
12360                 if (nic_phy_id != 0) {
12361                         u32 id1 = nic_phy_id & NIC_SRAM_DATA_PHY_ID1_MASK;
12362                         u32 id2 = nic_phy_id & NIC_SRAM_DATA_PHY_ID2_MASK;
12363
12364                         eeprom_phy_id  = (id1 >> 16) << 10;
12365                         eeprom_phy_id |= (id2 & 0xfc00) << 16;
12366                         eeprom_phy_id |= (id2 & 0x03ff) <<  0;
12367                 } else
12368                         eeprom_phy_id = 0;
12369
12370                 tp->phy_id = eeprom_phy_id;
12371                 if (eeprom_phy_serdes) {
12372                         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
12373                                 tp->phy_flags |= TG3_PHYFLG_PHY_SERDES;
12374                         else
12375                                 tp->phy_flags |= TG3_PHYFLG_MII_SERDES;
12376                 }
12377
12378                 if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS)
12379                         led_cfg = cfg2 & (NIC_SRAM_DATA_CFG_LED_MODE_MASK |
12380                                     SHASTA_EXT_LED_MODE_MASK);
12381                 else
12382                         led_cfg = nic_cfg & NIC_SRAM_DATA_CFG_LED_MODE_MASK;
12383
12384                 switch (led_cfg) {
12385                 default:
12386                 case NIC_SRAM_DATA_CFG_LED_MODE_PHY_1:
12387                         tp->led_ctrl = LED_CTRL_MODE_PHY_1;
12388                         break;
12389
12390                 case NIC_SRAM_DATA_CFG_LED_MODE_PHY_2:
12391                         tp->led_ctrl = LED_CTRL_MODE_PHY_2;
12392                         break;
12393
12394                 case NIC_SRAM_DATA_CFG_LED_MODE_MAC:
12395                         tp->led_ctrl = LED_CTRL_MODE_MAC;
12396
12397                         /* Default to PHY_1_MODE if 0 (MAC_MODE) is
12398                          * read on some older 5700/5701 bootcode.
12399                          */
12400                         if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
12401                             ASIC_REV_5700 ||
12402                             GET_ASIC_REV(tp->pci_chip_rev_id) ==
12403                             ASIC_REV_5701)
12404                                 tp->led_ctrl = LED_CTRL_MODE_PHY_1;
12405
12406                         break;
12407
12408                 case SHASTA_EXT_LED_SHARED:
12409                         tp->led_ctrl = LED_CTRL_MODE_SHARED;
12410                         if (tp->pci_chip_rev_id != CHIPREV_ID_5750_A0 &&
12411                             tp->pci_chip_rev_id != CHIPREV_ID_5750_A1)
12412                                 tp->led_ctrl |= (LED_CTRL_MODE_PHY_1 |
12413                                                  LED_CTRL_MODE_PHY_2);
12414                         break;
12415
12416                 case SHASTA_EXT_LED_MAC:
12417                         tp->led_ctrl = LED_CTRL_MODE_SHASTA_MAC;
12418                         break;
12419
12420                 case SHASTA_EXT_LED_COMBO:
12421                         tp->led_ctrl = LED_CTRL_MODE_COMBO;
12422                         if (tp->pci_chip_rev_id != CHIPREV_ID_5750_A0)
12423                                 tp->led_ctrl |= (LED_CTRL_MODE_PHY_1 |
12424                                                  LED_CTRL_MODE_PHY_2);
12425                         break;
12426
12427                 }
12428
12429                 if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
12430                      GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) &&
12431                     tp->pdev->subsystem_vendor == PCI_VENDOR_ID_DELL)
12432                         tp->led_ctrl = LED_CTRL_MODE_PHY_2;
12433
12434                 if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX)
12435                         tp->led_ctrl = LED_CTRL_MODE_PHY_1;
12436
12437                 if (nic_cfg & NIC_SRAM_DATA_CFG_EEPROM_WP) {
12438                         tp->tg3_flags |= TG3_FLAG_EEPROM_WRITE_PROT;
12439                         if ((tp->pdev->subsystem_vendor ==
12440                              PCI_VENDOR_ID_ARIMA) &&
12441                             (tp->pdev->subsystem_device == 0x205a ||
12442                              tp->pdev->subsystem_device == 0x2063))
12443                                 tp->tg3_flags &= ~TG3_FLAG_EEPROM_WRITE_PROT;
12444                 } else {
12445                         tp->tg3_flags &= ~TG3_FLAG_EEPROM_WRITE_PROT;
12446                         tp->tg3_flags2 |= TG3_FLG2_IS_NIC;
12447                 }
12448
12449                 if (nic_cfg & NIC_SRAM_DATA_CFG_ASF_ENABLE) {
12450                         tp->tg3_flags |= TG3_FLAG_ENABLE_ASF;
12451                         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS)
12452                                 tp->tg3_flags2 |= TG3_FLG2_ASF_NEW_HANDSHAKE;
12453                 }
12454
12455                 if ((nic_cfg & NIC_SRAM_DATA_CFG_APE_ENABLE) &&
12456                         (tp->tg3_flags2 & TG3_FLG2_5750_PLUS))
12457                         tp->tg3_flags3 |= TG3_FLG3_ENABLE_APE;
12458
12459                 if (tp->phy_flags & TG3_PHYFLG_ANY_SERDES &&
12460                     !(nic_cfg & NIC_SRAM_DATA_CFG_FIBER_WOL))
12461                         tp->tg3_flags &= ~TG3_FLAG_WOL_CAP;
12462
12463                 if ((tp->tg3_flags & TG3_FLAG_WOL_CAP) &&
12464                     (nic_cfg & NIC_SRAM_DATA_CFG_WOL_ENABLE))
12465                         tp->tg3_flags |= TG3_FLAG_WOL_ENABLE;
12466
12467                 if (cfg2 & (1 << 17))
12468                         tp->phy_flags |= TG3_PHYFLG_CAPACITIVE_COUPLING;
12469
12470                 /* serdes signal pre-emphasis in register 0x590 set by */
12471                 /* bootcode if bit 18 is set */
12472                 if (cfg2 & (1 << 18))
12473                         tp->phy_flags |= TG3_PHYFLG_SERDES_PREEMPHASIS;
12474
12475                 if (((tp->tg3_flags3 & TG3_FLG3_5717_PLUS) ||
12476                     ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
12477                       GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX))) &&
12478                     (cfg2 & NIC_SRAM_DATA_CFG_2_APD_EN))
12479                         tp->phy_flags |= TG3_PHYFLG_ENABLE_APD;
12480
12481                 if ((tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) &&
12482                     GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785 &&
12483                     !(tp->tg3_flags3 & TG3_FLG3_5717_PLUS)) {
12484                         u32 cfg3;
12485
12486                         tg3_read_mem(tp, NIC_SRAM_DATA_CFG_3, &cfg3);
12487                         if (cfg3 & NIC_SRAM_ASPM_DEBOUNCE)
12488                                 tp->tg3_flags |= TG3_FLAG_ASPM_WORKAROUND;
12489                 }
12490
12491                 if (cfg4 & NIC_SRAM_RGMII_INBAND_DISABLE)
12492                         tp->tg3_flags3 |= TG3_FLG3_RGMII_INBAND_DISABLE;
12493                 if (cfg4 & NIC_SRAM_RGMII_EXT_IBND_RX_EN)
12494                         tp->tg3_flags3 |= TG3_FLG3_RGMII_EXT_IBND_RX_EN;
12495                 if (cfg4 & NIC_SRAM_RGMII_EXT_IBND_TX_EN)
12496                         tp->tg3_flags3 |= TG3_FLG3_RGMII_EXT_IBND_TX_EN;
12497         }
12498 done:
12499         if (tp->tg3_flags & TG3_FLAG_WOL_CAP)
12500                 device_set_wakeup_enable(&tp->pdev->dev,
12501                                  tp->tg3_flags & TG3_FLAG_WOL_ENABLE);
12502         else
12503                 device_set_wakeup_capable(&tp->pdev->dev, false);
12504 }
12505
12506 static int __devinit tg3_issue_otp_command(struct tg3 *tp, u32 cmd)
12507 {
12508         int i;
12509         u32 val;
12510
12511         tw32(OTP_CTRL, cmd | OTP_CTRL_OTP_CMD_START);
12512         tw32(OTP_CTRL, cmd);
12513
12514         /* Wait for up to 1 ms for command to execute. */
12515         for (i = 0; i < 100; i++) {
12516                 val = tr32(OTP_STATUS);
12517                 if (val & OTP_STATUS_CMD_DONE)
12518                         break;
12519                 udelay(10);
12520         }
12521
12522         return (val & OTP_STATUS_CMD_DONE) ? 0 : -EBUSY;
12523 }
12524
12525 /* Read the gphy configuration from the OTP region of the chip.  The gphy
12526  * configuration is a 32-bit value that straddles the alignment boundary.
12527  * We do two 32-bit reads and then shift and merge the results.
12528  */
12529 static u32 __devinit tg3_read_otp_phycfg(struct tg3 *tp)
12530 {
12531         u32 bhalf_otp, thalf_otp;
12532
12533         tw32(OTP_MODE, OTP_MODE_OTP_THRU_GRC);
12534
12535         if (tg3_issue_otp_command(tp, OTP_CTRL_OTP_CMD_INIT))
12536                 return 0;
12537
12538         tw32(OTP_ADDRESS, OTP_ADDRESS_MAGIC1);
12539
12540         if (tg3_issue_otp_command(tp, OTP_CTRL_OTP_CMD_READ))
12541                 return 0;
12542
12543         thalf_otp = tr32(OTP_READ_DATA);
12544
12545         tw32(OTP_ADDRESS, OTP_ADDRESS_MAGIC2);
12546
12547         if (tg3_issue_otp_command(tp, OTP_CTRL_OTP_CMD_READ))
12548                 return 0;
12549
12550         bhalf_otp = tr32(OTP_READ_DATA);
12551
12552         return ((thalf_otp & 0x0000ffff) << 16) | (bhalf_otp >> 16);
12553 }
12554
12555 static void __devinit tg3_phy_init_link_config(struct tg3 *tp)
12556 {
12557         u32 adv = ADVERTISED_Autoneg |
12558                   ADVERTISED_Pause;
12559
12560         if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY))
12561                 adv |= ADVERTISED_1000baseT_Half |
12562                        ADVERTISED_1000baseT_Full;
12563
12564         if (!(tp->phy_flags & TG3_PHYFLG_ANY_SERDES))
12565                 adv |= ADVERTISED_100baseT_Half |
12566                        ADVERTISED_100baseT_Full |
12567                        ADVERTISED_10baseT_Half |
12568                        ADVERTISED_10baseT_Full |
12569                        ADVERTISED_TP;
12570         else
12571                 adv |= ADVERTISED_FIBRE;
12572
12573         tp->link_config.advertising = adv;
12574         tp->link_config.speed = SPEED_INVALID;
12575         tp->link_config.duplex = DUPLEX_INVALID;
12576         tp->link_config.autoneg = AUTONEG_ENABLE;
12577         tp->link_config.active_speed = SPEED_INVALID;
12578         tp->link_config.active_duplex = DUPLEX_INVALID;
12579         tp->link_config.orig_speed = SPEED_INVALID;
12580         tp->link_config.orig_duplex = DUPLEX_INVALID;
12581         tp->link_config.orig_autoneg = AUTONEG_INVALID;
12582 }
12583
12584 static int __devinit tg3_phy_probe(struct tg3 *tp)
12585 {
12586         u32 hw_phy_id_1, hw_phy_id_2;
12587         u32 hw_phy_id, hw_phy_id_masked;
12588         int err;
12589
12590         /* flow control autonegotiation is default behavior */
12591         tp->tg3_flags |= TG3_FLAG_PAUSE_AUTONEG;
12592         tp->link_config.flowctrl = FLOW_CTRL_TX | FLOW_CTRL_RX;
12593
12594         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB)
12595                 return tg3_phy_init(tp);
12596
12597         /* Reading the PHY ID register can conflict with ASF
12598          * firmware access to the PHY hardware.
12599          */
12600         err = 0;
12601         if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) ||
12602             (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)) {
12603                 hw_phy_id = hw_phy_id_masked = TG3_PHY_ID_INVALID;
12604         } else {
12605                 /* Now read the physical PHY_ID from the chip and verify
12606                  * that it is sane.  If it doesn't look good, we fall back
12607                  * to either the hard-coded table based PHY_ID and failing
12608                  * that the value found in the eeprom area.
12609                  */
12610                 err |= tg3_readphy(tp, MII_PHYSID1, &hw_phy_id_1);
12611                 err |= tg3_readphy(tp, MII_PHYSID2, &hw_phy_id_2);
12612
12613                 hw_phy_id  = (hw_phy_id_1 & 0xffff) << 10;
12614                 hw_phy_id |= (hw_phy_id_2 & 0xfc00) << 16;
12615                 hw_phy_id |= (hw_phy_id_2 & 0x03ff) <<  0;
12616
12617                 hw_phy_id_masked = hw_phy_id & TG3_PHY_ID_MASK;
12618         }
12619
12620         if (!err && TG3_KNOWN_PHY_ID(hw_phy_id_masked)) {
12621                 tp->phy_id = hw_phy_id;
12622                 if (hw_phy_id_masked == TG3_PHY_ID_BCM8002)
12623                         tp->phy_flags |= TG3_PHYFLG_PHY_SERDES;
12624                 else
12625                         tp->phy_flags &= ~TG3_PHYFLG_PHY_SERDES;
12626         } else {
12627                 if (tp->phy_id != TG3_PHY_ID_INVALID) {
12628                         /* Do nothing, phy ID already set up in
12629                          * tg3_get_eeprom_hw_cfg().
12630                          */
12631                 } else {
12632                         struct subsys_tbl_ent *p;
12633
12634                         /* No eeprom signature?  Try the hardcoded
12635                          * subsys device table.
12636                          */
12637                         p = tg3_lookup_by_subsys(tp);
12638                         if (!p)
12639                                 return -ENODEV;
12640
12641                         tp->phy_id = p->phy_id;
12642                         if (!tp->phy_id ||
12643                             tp->phy_id == TG3_PHY_ID_BCM8002)
12644                                 tp->phy_flags |= TG3_PHYFLG_PHY_SERDES;
12645                 }
12646         }
12647
12648         if (!(tp->phy_flags & TG3_PHYFLG_ANY_SERDES) &&
12649             ((tp->pdev->device == TG3PCI_DEVICE_TIGON3_5718 &&
12650               tp->pci_chip_rev_id != CHIPREV_ID_5717_A0) ||
12651              (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765 &&
12652               tp->pci_chip_rev_id != CHIPREV_ID_57765_A0)))
12653                 tp->phy_flags |= TG3_PHYFLG_EEE_CAP;
12654
12655         tg3_phy_init_link_config(tp);
12656
12657         if (!(tp->phy_flags & TG3_PHYFLG_ANY_SERDES) &&
12658             !(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) &&
12659             !(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)) {
12660                 u32 bmsr, adv_reg, tg3_ctrl, mask;
12661
12662                 tg3_readphy(tp, MII_BMSR, &bmsr);
12663                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
12664                     (bmsr & BMSR_LSTATUS))
12665                         goto skip_phy_reset;
12666
12667                 err = tg3_phy_reset(tp);
12668                 if (err)
12669                         return err;
12670
12671                 adv_reg = (ADVERTISE_10HALF | ADVERTISE_10FULL |
12672                            ADVERTISE_100HALF | ADVERTISE_100FULL |
12673                            ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
12674                 tg3_ctrl = 0;
12675                 if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY)) {
12676                         tg3_ctrl = (MII_TG3_CTRL_ADV_1000_HALF |
12677                                     MII_TG3_CTRL_ADV_1000_FULL);
12678                         if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
12679                             tp->pci_chip_rev_id == CHIPREV_ID_5701_B0)
12680                                 tg3_ctrl |= (MII_TG3_CTRL_AS_MASTER |
12681                                              MII_TG3_CTRL_ENABLE_AS_MASTER);
12682                 }
12683
12684                 mask = (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full |
12685                         ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full |
12686                         ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full);
12687                 if (!tg3_copper_is_advertising_all(tp, mask)) {
12688                         tg3_writephy(tp, MII_ADVERTISE, adv_reg);
12689
12690                         if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY))
12691                                 tg3_writephy(tp, MII_TG3_CTRL, tg3_ctrl);
12692
12693                         tg3_writephy(tp, MII_BMCR,
12694                                      BMCR_ANENABLE | BMCR_ANRESTART);
12695                 }
12696                 tg3_phy_set_wirespeed(tp);
12697
12698                 tg3_writephy(tp, MII_ADVERTISE, adv_reg);
12699                 if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY))
12700                         tg3_writephy(tp, MII_TG3_CTRL, tg3_ctrl);
12701         }
12702
12703 skip_phy_reset:
12704         if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5401) {
12705                 err = tg3_init_5401phy_dsp(tp);
12706                 if (err)
12707                         return err;
12708
12709                 err = tg3_init_5401phy_dsp(tp);
12710         }
12711
12712         return err;
12713 }
12714
12715 static void __devinit tg3_read_vpd(struct tg3 *tp)
12716 {
12717         u8 *vpd_data;
12718         unsigned int block_end, rosize, len;
12719         int j, i = 0;
12720         u32 magic;
12721
12722         if ((tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) ||
12723             tg3_nvram_read(tp, 0x0, &magic))
12724                 goto out_no_vpd;
12725
12726         vpd_data = kmalloc(TG3_NVM_VPD_LEN, GFP_KERNEL);
12727         if (!vpd_data)
12728                 goto out_no_vpd;
12729
12730         if (magic == TG3_EEPROM_MAGIC) {
12731                 for (i = 0; i < TG3_NVM_VPD_LEN; i += 4) {
12732                         u32 tmp;
12733
12734                         /* The data is in little-endian format in NVRAM.
12735                          * Use the big-endian read routines to preserve
12736                          * the byte order as it exists in NVRAM.
12737                          */
12738                         if (tg3_nvram_read_be32(tp, TG3_NVM_VPD_OFF + i, &tmp))
12739                                 goto out_not_found;
12740
12741                         memcpy(&vpd_data[i], &tmp, sizeof(tmp));
12742                 }
12743         } else {
12744                 ssize_t cnt;
12745                 unsigned int pos = 0;
12746
12747                 for (; pos < TG3_NVM_VPD_LEN && i < 3; i++, pos += cnt) {
12748                         cnt = pci_read_vpd(tp->pdev, pos,
12749                                            TG3_NVM_VPD_LEN - pos,
12750                                            &vpd_data[pos]);
12751                         if (cnt == -ETIMEDOUT || cnt == -EINTR)
12752                                 cnt = 0;
12753                         else if (cnt < 0)
12754                                 goto out_not_found;
12755                 }
12756                 if (pos != TG3_NVM_VPD_LEN)
12757                         goto out_not_found;
12758         }
12759
12760         i = pci_vpd_find_tag(vpd_data, 0, TG3_NVM_VPD_LEN,
12761                              PCI_VPD_LRDT_RO_DATA);
12762         if (i < 0)
12763                 goto out_not_found;
12764
12765         rosize = pci_vpd_lrdt_size(&vpd_data[i]);
12766         block_end = i + PCI_VPD_LRDT_TAG_SIZE + rosize;
12767         i += PCI_VPD_LRDT_TAG_SIZE;
12768
12769         if (block_end > TG3_NVM_VPD_LEN)
12770                 goto out_not_found;
12771
12772         j = pci_vpd_find_info_keyword(vpd_data, i, rosize,
12773                                       PCI_VPD_RO_KEYWORD_MFR_ID);
12774         if (j > 0) {
12775                 len = pci_vpd_info_field_size(&vpd_data[j]);
12776
12777                 j += PCI_VPD_INFO_FLD_HDR_SIZE;
12778                 if (j + len > block_end || len != 4 ||
12779                     memcmp(&vpd_data[j], "1028", 4))
12780                         goto partno;
12781
12782                 j = pci_vpd_find_info_keyword(vpd_data, i, rosize,
12783                                               PCI_VPD_RO_KEYWORD_VENDOR0);
12784                 if (j < 0)
12785                         goto partno;
12786
12787                 len = pci_vpd_info_field_size(&vpd_data[j]);
12788
12789                 j += PCI_VPD_INFO_FLD_HDR_SIZE;
12790                 if (j + len > block_end)
12791                         goto partno;
12792
12793                 memcpy(tp->fw_ver, &vpd_data[j], len);
12794                 strncat(tp->fw_ver, " bc ", TG3_NVM_VPD_LEN - len - 1);
12795         }
12796
12797 partno:
12798         i = pci_vpd_find_info_keyword(vpd_data, i, rosize,
12799                                       PCI_VPD_RO_KEYWORD_PARTNO);
12800         if (i < 0)
12801                 goto out_not_found;
12802
12803         len = pci_vpd_info_field_size(&vpd_data[i]);
12804
12805         i += PCI_VPD_INFO_FLD_HDR_SIZE;
12806         if (len > TG3_BPN_SIZE ||
12807             (len + i) > TG3_NVM_VPD_LEN)
12808                 goto out_not_found;
12809
12810         memcpy(tp->board_part_number, &vpd_data[i], len);
12811
12812 out_not_found:
12813         kfree(vpd_data);
12814         if (tp->board_part_number[0])
12815                 return;
12816
12817 out_no_vpd:
12818         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717) {
12819                 if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_5717)
12820                         strcpy(tp->board_part_number, "BCM5717");
12821                 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_5718)
12822                         strcpy(tp->board_part_number, "BCM5718");
12823                 else
12824                         goto nomatch;
12825         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780) {
12826                 if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57780)
12827                         strcpy(tp->board_part_number, "BCM57780");
12828                 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57760)
12829                         strcpy(tp->board_part_number, "BCM57760");
12830                 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57790)
12831                         strcpy(tp->board_part_number, "BCM57790");
12832                 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57788)
12833                         strcpy(tp->board_part_number, "BCM57788");
12834                 else
12835                         goto nomatch;
12836         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765) {
12837                 if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57761)
12838                         strcpy(tp->board_part_number, "BCM57761");
12839                 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57765)
12840                         strcpy(tp->board_part_number, "BCM57765");
12841                 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57781)
12842                         strcpy(tp->board_part_number, "BCM57781");
12843                 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57785)
12844                         strcpy(tp->board_part_number, "BCM57785");
12845                 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57791)
12846                         strcpy(tp->board_part_number, "BCM57791");
12847                 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57795)
12848                         strcpy(tp->board_part_number, "BCM57795");
12849                 else
12850                         goto nomatch;
12851         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
12852                 strcpy(tp->board_part_number, "BCM95906");
12853         } else {
12854 nomatch:
12855                 strcpy(tp->board_part_number, "none");
12856         }
12857 }
12858
12859 static int __devinit tg3_fw_img_is_valid(struct tg3 *tp, u32 offset)
12860 {
12861         u32 val;
12862
12863         if (tg3_nvram_read(tp, offset, &val) ||
12864             (val & 0xfc000000) != 0x0c000000 ||
12865             tg3_nvram_read(tp, offset + 4, &val) ||
12866             val != 0)
12867                 return 0;
12868
12869         return 1;
12870 }
12871
12872 static void __devinit tg3_read_bc_ver(struct tg3 *tp)
12873 {
12874         u32 val, offset, start, ver_offset;
12875         int i, dst_off;
12876         bool newver = false;
12877
12878         if (tg3_nvram_read(tp, 0xc, &offset) ||
12879             tg3_nvram_read(tp, 0x4, &start))
12880                 return;
12881
12882         offset = tg3_nvram_logical_addr(tp, offset);
12883
12884         if (tg3_nvram_read(tp, offset, &val))
12885                 return;
12886
12887         if ((val & 0xfc000000) == 0x0c000000) {
12888                 if (tg3_nvram_read(tp, offset + 4, &val))
12889                         return;
12890
12891                 if (val == 0)
12892                         newver = true;
12893         }
12894
12895         dst_off = strlen(tp->fw_ver);
12896
12897         if (newver) {
12898                 if (TG3_VER_SIZE - dst_off < 16 ||
12899                     tg3_nvram_read(tp, offset + 8, &ver_offset))
12900                         return;
12901
12902                 offset = offset + ver_offset - start;
12903                 for (i = 0; i < 16; i += 4) {
12904                         __be32 v;
12905                         if (tg3_nvram_read_be32(tp, offset + i, &v))
12906                                 return;
12907
12908                         memcpy(tp->fw_ver + dst_off + i, &v, sizeof(v));
12909                 }
12910         } else {
12911                 u32 major, minor;
12912
12913                 if (tg3_nvram_read(tp, TG3_NVM_PTREV_BCVER, &ver_offset))
12914                         return;
12915
12916                 major = (ver_offset & TG3_NVM_BCVER_MAJMSK) >>
12917                         TG3_NVM_BCVER_MAJSFT;
12918                 minor = ver_offset & TG3_NVM_BCVER_MINMSK;
12919                 snprintf(&tp->fw_ver[dst_off], TG3_VER_SIZE - dst_off,
12920                          "v%d.%02d", major, minor);
12921         }
12922 }
12923
12924 static void __devinit tg3_read_hwsb_ver(struct tg3 *tp)
12925 {
12926         u32 val, major, minor;
12927
12928         /* Use native endian representation */
12929         if (tg3_nvram_read(tp, TG3_NVM_HWSB_CFG1, &val))
12930                 return;
12931
12932         major = (val & TG3_NVM_HWSB_CFG1_MAJMSK) >>
12933                 TG3_NVM_HWSB_CFG1_MAJSFT;
12934         minor = (val & TG3_NVM_HWSB_CFG1_MINMSK) >>
12935                 TG3_NVM_HWSB_CFG1_MINSFT;
12936
12937         snprintf(&tp->fw_ver[0], 32, "sb v%d.%02d", major, minor);
12938 }
12939
12940 static void __devinit tg3_read_sb_ver(struct tg3 *tp, u32 val)
12941 {
12942         u32 offset, major, minor, build;
12943
12944         strncat(tp->fw_ver, "sb", TG3_VER_SIZE - strlen(tp->fw_ver) - 1);
12945
12946         if ((val & TG3_EEPROM_SB_FORMAT_MASK) != TG3_EEPROM_SB_FORMAT_1)
12947                 return;
12948
12949         switch (val & TG3_EEPROM_SB_REVISION_MASK) {
12950         case TG3_EEPROM_SB_REVISION_0:
12951                 offset = TG3_EEPROM_SB_F1R0_EDH_OFF;
12952                 break;
12953         case TG3_EEPROM_SB_REVISION_2:
12954                 offset = TG3_EEPROM_SB_F1R2_EDH_OFF;
12955                 break;
12956         case TG3_EEPROM_SB_REVISION_3:
12957                 offset = TG3_EEPROM_SB_F1R3_EDH_OFF;
12958                 break;
12959         case TG3_EEPROM_SB_REVISION_4:
12960                 offset = TG3_EEPROM_SB_F1R4_EDH_OFF;
12961                 break;
12962         case TG3_EEPROM_SB_REVISION_5:
12963                 offset = TG3_EEPROM_SB_F1R5_EDH_OFF;
12964                 break;
12965         case TG3_EEPROM_SB_REVISION_6:
12966                 offset = TG3_EEPROM_SB_F1R6_EDH_OFF;
12967                 break;
12968         default:
12969                 return;
12970         }
12971
12972         if (tg3_nvram_read(tp, offset, &val))
12973                 return;
12974
12975         build = (val & TG3_EEPROM_SB_EDH_BLD_MASK) >>
12976                 TG3_EEPROM_SB_EDH_BLD_SHFT;
12977         major = (val & TG3_EEPROM_SB_EDH_MAJ_MASK) >>
12978                 TG3_EEPROM_SB_EDH_MAJ_SHFT;
12979         minor =  val & TG3_EEPROM_SB_EDH_MIN_MASK;
12980
12981         if (minor > 99 || build > 26)
12982                 return;
12983
12984         offset = strlen(tp->fw_ver);
12985         snprintf(&tp->fw_ver[offset], TG3_VER_SIZE - offset,
12986                  " v%d.%02d", major, minor);
12987
12988         if (build > 0) {
12989                 offset = strlen(tp->fw_ver);
12990                 if (offset < TG3_VER_SIZE - 1)
12991                         tp->fw_ver[offset] = 'a' + build - 1;
12992         }
12993 }
12994
12995 static void __devinit tg3_read_mgmtfw_ver(struct tg3 *tp)
12996 {
12997         u32 val, offset, start;
12998         int i, vlen;
12999
13000         for (offset = TG3_NVM_DIR_START;
13001              offset < TG3_NVM_DIR_END;
13002              offset += TG3_NVM_DIRENT_SIZE) {
13003                 if (tg3_nvram_read(tp, offset, &val))
13004                         return;
13005
13006                 if ((val >> TG3_NVM_DIRTYPE_SHIFT) == TG3_NVM_DIRTYPE_ASFINI)
13007                         break;
13008         }
13009
13010         if (offset == TG3_NVM_DIR_END)
13011                 return;
13012
13013         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
13014                 start = 0x08000000;
13015         else if (tg3_nvram_read(tp, offset - 4, &start))
13016                 return;
13017
13018         if (tg3_nvram_read(tp, offset + 4, &offset) ||
13019             !tg3_fw_img_is_valid(tp, offset) ||
13020             tg3_nvram_read(tp, offset + 8, &val))
13021                 return;
13022
13023         offset += val - start;
13024
13025         vlen = strlen(tp->fw_ver);
13026
13027         tp->fw_ver[vlen++] = ',';
13028         tp->fw_ver[vlen++] = ' ';
13029
13030         for (i = 0; i < 4; i++) {
13031                 __be32 v;
13032                 if (tg3_nvram_read_be32(tp, offset, &v))
13033                         return;
13034
13035                 offset += sizeof(v);
13036
13037                 if (vlen > TG3_VER_SIZE - sizeof(v)) {
13038                         memcpy(&tp->fw_ver[vlen], &v, TG3_VER_SIZE - vlen);
13039                         break;
13040                 }
13041
13042                 memcpy(&tp->fw_ver[vlen], &v, sizeof(v));
13043                 vlen += sizeof(v);
13044         }
13045 }
13046
13047 static void __devinit tg3_read_dash_ver(struct tg3 *tp)
13048 {
13049         int vlen;
13050         u32 apedata;
13051         char *fwtype;
13052
13053         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) ||
13054             !(tp->tg3_flags  & TG3_FLAG_ENABLE_ASF))
13055                 return;
13056
13057         apedata = tg3_ape_read32(tp, TG3_APE_SEG_SIG);
13058         if (apedata != APE_SEG_SIG_MAGIC)
13059                 return;
13060
13061         apedata = tg3_ape_read32(tp, TG3_APE_FW_STATUS);
13062         if (!(apedata & APE_FW_STATUS_READY))
13063                 return;
13064
13065         apedata = tg3_ape_read32(tp, TG3_APE_FW_VERSION);
13066
13067         if (tg3_ape_read32(tp, TG3_APE_FW_FEATURES) & TG3_APE_FW_FEATURE_NCSI) {
13068                 tp->tg3_flags3 |= TG3_FLG3_APE_HAS_NCSI;
13069                 fwtype = "NCSI";
13070         } else {
13071                 fwtype = "DASH";
13072         }
13073
13074         vlen = strlen(tp->fw_ver);
13075
13076         snprintf(&tp->fw_ver[vlen], TG3_VER_SIZE - vlen, " %s v%d.%d.%d.%d",
13077                  fwtype,
13078                  (apedata & APE_FW_VERSION_MAJMSK) >> APE_FW_VERSION_MAJSFT,
13079                  (apedata & APE_FW_VERSION_MINMSK) >> APE_FW_VERSION_MINSFT,
13080                  (apedata & APE_FW_VERSION_REVMSK) >> APE_FW_VERSION_REVSFT,
13081                  (apedata & APE_FW_VERSION_BLDMSK));
13082 }
13083
13084 static void __devinit tg3_read_fw_ver(struct tg3 *tp)
13085 {
13086         u32 val;
13087         bool vpd_vers = false;
13088
13089         if (tp->fw_ver[0] != 0)
13090                 vpd_vers = true;
13091
13092         if (tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) {
13093                 strcat(tp->fw_ver, "sb");
13094                 return;
13095         }
13096
13097         if (tg3_nvram_read(tp, 0, &val))
13098                 return;
13099
13100         if (val == TG3_EEPROM_MAGIC)
13101                 tg3_read_bc_ver(tp);
13102         else if ((val & TG3_EEPROM_MAGIC_FW_MSK) == TG3_EEPROM_MAGIC_FW)
13103                 tg3_read_sb_ver(tp, val);
13104         else if ((val & TG3_EEPROM_MAGIC_HW_MSK) == TG3_EEPROM_MAGIC_HW)
13105                 tg3_read_hwsb_ver(tp);
13106         else
13107                 return;
13108
13109         if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF) ||
13110              (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) || vpd_vers)
13111                 goto done;
13112
13113         tg3_read_mgmtfw_ver(tp);
13114
13115 done:
13116         tp->fw_ver[TG3_VER_SIZE - 1] = 0;
13117 }
13118
13119 static struct pci_dev * __devinit tg3_find_peer(struct tg3 *);
13120
13121 static inline void vlan_features_add(struct net_device *dev, unsigned long flags)
13122 {
13123         dev->vlan_features |= flags;
13124 }
13125
13126 static inline u32 tg3_rx_ret_ring_size(struct tg3 *tp)
13127 {
13128         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
13129             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719)
13130                 return 4096;
13131         else if ((tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) &&
13132                  !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
13133                 return 1024;
13134         else
13135                 return 512;
13136 }
13137
13138 static DEFINE_PCI_DEVICE_TABLE(tg3_write_reorder_chipsets) = {
13139         { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C) },
13140         { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE) },
13141         { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8385_0) },
13142         { },
13143 };
13144
13145 static int __devinit tg3_get_invariants(struct tg3 *tp)
13146 {
13147         u32 misc_ctrl_reg;
13148         u32 pci_state_reg, grc_misc_cfg;
13149         u32 val;
13150         u16 pci_cmd;
13151         int err;
13152
13153         /* Force memory write invalidate off.  If we leave it on,
13154          * then on 5700_BX chips we have to enable a workaround.
13155          * The workaround is to set the TG3PCI_DMA_RW_CTRL boundary
13156          * to match the cacheline size.  The Broadcom driver have this
13157          * workaround but turns MWI off all the times so never uses
13158          * it.  This seems to suggest that the workaround is insufficient.
13159          */
13160         pci_read_config_word(tp->pdev, PCI_COMMAND, &pci_cmd);
13161         pci_cmd &= ~PCI_COMMAND_INVALIDATE;
13162         pci_write_config_word(tp->pdev, PCI_COMMAND, pci_cmd);
13163
13164         /* It is absolutely critical that TG3PCI_MISC_HOST_CTRL
13165          * has the register indirect write enable bit set before
13166          * we try to access any of the MMIO registers.  It is also
13167          * critical that the PCI-X hw workaround situation is decided
13168          * before that as well.
13169          */
13170         pci_read_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
13171                               &misc_ctrl_reg);
13172
13173         tp->pci_chip_rev_id = (misc_ctrl_reg >>
13174                                MISC_HOST_CTRL_CHIPREV_SHIFT);
13175         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_USE_PROD_ID_REG) {
13176                 u32 prod_id_asic_rev;
13177
13178                 if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_5717 ||
13179                     tp->pdev->device == TG3PCI_DEVICE_TIGON3_5718 ||
13180                     tp->pdev->device == TG3PCI_DEVICE_TIGON3_5719)
13181                         pci_read_config_dword(tp->pdev,
13182                                               TG3PCI_GEN2_PRODID_ASICREV,
13183                                               &prod_id_asic_rev);
13184                 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57781 ||
13185                          tp->pdev->device == TG3PCI_DEVICE_TIGON3_57785 ||
13186                          tp->pdev->device == TG3PCI_DEVICE_TIGON3_57761 ||
13187                          tp->pdev->device == TG3PCI_DEVICE_TIGON3_57765 ||
13188                          tp->pdev->device == TG3PCI_DEVICE_TIGON3_57791 ||
13189                          tp->pdev->device == TG3PCI_DEVICE_TIGON3_57795)
13190                         pci_read_config_dword(tp->pdev,
13191                                               TG3PCI_GEN15_PRODID_ASICREV,
13192                                               &prod_id_asic_rev);
13193                 else
13194                         pci_read_config_dword(tp->pdev, TG3PCI_PRODID_ASICREV,
13195                                               &prod_id_asic_rev);
13196
13197                 tp->pci_chip_rev_id = prod_id_asic_rev;
13198         }
13199
13200         /* Wrong chip ID in 5752 A0. This code can be removed later
13201          * as A0 is not in production.
13202          */
13203         if (tp->pci_chip_rev_id == CHIPREV_ID_5752_A0_HW)
13204                 tp->pci_chip_rev_id = CHIPREV_ID_5752_A0;
13205
13206         /* If we have 5702/03 A1 or A2 on certain ICH chipsets,
13207          * we need to disable memory and use config. cycles
13208          * only to access all registers. The 5702/03 chips
13209          * can mistakenly decode the special cycles from the
13210          * ICH chipsets as memory write cycles, causing corruption
13211          * of register and memory space. Only certain ICH bridges
13212          * will drive special cycles with non-zero data during the
13213          * address phase which can fall within the 5703's address
13214          * range. This is not an ICH bug as the PCI spec allows
13215          * non-zero address during special cycles. However, only
13216          * these ICH bridges are known to drive non-zero addresses
13217          * during special cycles.
13218          *
13219          * Since special cycles do not cross PCI bridges, we only
13220          * enable this workaround if the 5703 is on the secondary
13221          * bus of these ICH bridges.
13222          */
13223         if ((tp->pci_chip_rev_id == CHIPREV_ID_5703_A1) ||
13224             (tp->pci_chip_rev_id == CHIPREV_ID_5703_A2)) {
13225                 static struct tg3_dev_id {
13226                         u32     vendor;
13227                         u32     device;
13228                         u32     rev;
13229                 } ich_chipsets[] = {
13230                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_8,
13231                           PCI_ANY_ID },
13232                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_8,
13233                           PCI_ANY_ID },
13234                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_11,
13235                           0xa },
13236                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_6,
13237                           PCI_ANY_ID },
13238                         { },
13239                 };
13240                 struct tg3_dev_id *pci_id = &ich_chipsets[0];
13241                 struct pci_dev *bridge = NULL;
13242
13243                 while (pci_id->vendor != 0) {
13244                         bridge = pci_get_device(pci_id->vendor, pci_id->device,
13245                                                 bridge);
13246                         if (!bridge) {
13247                                 pci_id++;
13248                                 continue;
13249                         }
13250                         if (pci_id->rev != PCI_ANY_ID) {
13251                                 if (bridge->revision > pci_id->rev)
13252                                         continue;
13253                         }
13254                         if (bridge->subordinate &&
13255                             (bridge->subordinate->number ==
13256                              tp->pdev->bus->number)) {
13257
13258                                 tp->tg3_flags2 |= TG3_FLG2_ICH_WORKAROUND;
13259                                 pci_dev_put(bridge);
13260                                 break;
13261                         }
13262                 }
13263         }
13264
13265         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)) {
13266                 static struct tg3_dev_id {
13267                         u32     vendor;
13268                         u32     device;
13269                 } bridge_chipsets[] = {
13270                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0 },
13271                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1 },
13272                         { },
13273                 };
13274                 struct tg3_dev_id *pci_id = &bridge_chipsets[0];
13275                 struct pci_dev *bridge = NULL;
13276
13277                 while (pci_id->vendor != 0) {
13278                         bridge = pci_get_device(pci_id->vendor,
13279                                                 pci_id->device,
13280                                                 bridge);
13281                         if (!bridge) {
13282                                 pci_id++;
13283                                 continue;
13284                         }
13285                         if (bridge->subordinate &&
13286                             (bridge->subordinate->number <=
13287                              tp->pdev->bus->number) &&
13288                             (bridge->subordinate->subordinate >=
13289                              tp->pdev->bus->number)) {
13290                                 tp->tg3_flags3 |= TG3_FLG3_5701_DMA_BUG;
13291                                 pci_dev_put(bridge);
13292                                 break;
13293                         }
13294                 }
13295         }
13296
13297         /* The EPB bridge inside 5714, 5715, and 5780 cannot support
13298          * DMA addresses > 40-bit. This bridge may have other additional
13299          * 57xx devices behind it in some 4-port NIC designs for example.
13300          * Any tg3 device found behind the bridge will also need the 40-bit
13301          * DMA workaround.
13302          */
13303         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780 ||
13304             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714) {
13305                 tp->tg3_flags2 |= TG3_FLG2_5780_CLASS;
13306                 tp->tg3_flags |= TG3_FLAG_40BIT_DMA_BUG;
13307                 tp->msi_cap = pci_find_capability(tp->pdev, PCI_CAP_ID_MSI);
13308         } else {
13309                 struct pci_dev *bridge = NULL;
13310
13311                 do {
13312                         bridge = pci_get_device(PCI_VENDOR_ID_SERVERWORKS,
13313                                                 PCI_DEVICE_ID_SERVERWORKS_EPB,
13314                                                 bridge);
13315                         if (bridge && bridge->subordinate &&
13316                             (bridge->subordinate->number <=
13317                              tp->pdev->bus->number) &&
13318                             (bridge->subordinate->subordinate >=
13319                              tp->pdev->bus->number)) {
13320                                 tp->tg3_flags |= TG3_FLAG_40BIT_DMA_BUG;
13321                                 pci_dev_put(bridge);
13322                                 break;
13323                         }
13324                 } while (bridge);
13325         }
13326
13327         /* Initialize misc host control in PCI block. */
13328         tp->misc_host_ctrl |= (misc_ctrl_reg &
13329                                MISC_HOST_CTRL_CHIPREV);
13330         pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
13331                                tp->misc_host_ctrl);
13332
13333         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
13334             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714 ||
13335             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717)
13336                 tp->pdev_peer = tg3_find_peer(tp);
13337
13338         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
13339             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719 ||
13340             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
13341                 tp->tg3_flags3 |= TG3_FLG3_5717_PLUS;
13342
13343         /* Intentionally exclude ASIC_REV_5906 */
13344         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 ||
13345             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5787 ||
13346             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
13347             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
13348             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
13349             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 ||
13350             (tp->tg3_flags3 & TG3_FLG3_5717_PLUS))
13351                 tp->tg3_flags3 |= TG3_FLG3_5755_PLUS;
13352
13353         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750 ||
13354             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752 ||
13355             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906 ||
13356             (tp->tg3_flags3 & TG3_FLG3_5755_PLUS) ||
13357             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
13358                 tp->tg3_flags2 |= TG3_FLG2_5750_PLUS;
13359
13360         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) ||
13361             (tp->tg3_flags2 & TG3_FLG2_5750_PLUS))
13362                 tp->tg3_flags2 |= TG3_FLG2_5705_PLUS;
13363
13364         /* 5700 B0 chips do not support checksumming correctly due
13365          * to hardware bugs.
13366          */
13367         if (tp->pci_chip_rev_id == CHIPREV_ID_5700_B0)
13368                 tp->tg3_flags |= TG3_FLAG_BROKEN_CHECKSUMS;
13369         else {
13370                 unsigned long features = NETIF_F_IP_CSUM | NETIF_F_SG | NETIF_F_GRO;
13371
13372                 tp->tg3_flags |= TG3_FLAG_RX_CHECKSUMS;
13373                 if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
13374                         features |= NETIF_F_IPV6_CSUM;
13375                 tp->dev->features |= features;
13376                 vlan_features_add(tp->dev, features);
13377         }
13378
13379         /* Determine TSO capabilities */
13380         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719)
13381                 ; /* Do nothing. HW bug. */
13382         else if (tp->tg3_flags3 & TG3_FLG3_5717_PLUS)
13383                 tp->tg3_flags2 |= TG3_FLG2_HW_TSO_3;
13384         else if ((tp->tg3_flags3 & TG3_FLG3_5755_PLUS) ||
13385                  GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
13386                 tp->tg3_flags2 |= TG3_FLG2_HW_TSO_2;
13387         else if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) {
13388                 tp->tg3_flags2 |= TG3_FLG2_HW_TSO_1 | TG3_FLG2_TSO_BUG;
13389                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750 &&
13390                     tp->pci_chip_rev_id >= CHIPREV_ID_5750_C2)
13391                         tp->tg3_flags2 &= ~TG3_FLG2_TSO_BUG;
13392         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
13393                    GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701 &&
13394                    tp->pci_chip_rev_id != CHIPREV_ID_5705_A0) {
13395                 tp->tg3_flags2 |= TG3_FLG2_TSO_BUG;
13396                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705)
13397                         tp->fw_needed = FIRMWARE_TG3TSO5;
13398                 else
13399                         tp->fw_needed = FIRMWARE_TG3TSO;
13400         }
13401
13402         tp->irq_max = 1;
13403
13404         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) {
13405                 tp->tg3_flags |= TG3_FLAG_SUPPORT_MSI;
13406                 if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_AX ||
13407                     GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_BX ||
13408                     (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714 &&
13409                      tp->pci_chip_rev_id <= CHIPREV_ID_5714_A2 &&
13410                      tp->pdev_peer == tp->pdev))
13411                         tp->tg3_flags &= ~TG3_FLAG_SUPPORT_MSI;
13412
13413                 if ((tp->tg3_flags3 & TG3_FLG3_5755_PLUS) ||
13414                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
13415                         tp->tg3_flags2 |= TG3_FLG2_1SHOT_MSI;
13416                 }
13417
13418                 if (tp->tg3_flags3 & TG3_FLG3_5717_PLUS) {
13419                         tp->tg3_flags |= TG3_FLAG_SUPPORT_MSIX;
13420                         tp->irq_max = TG3_IRQ_MAX_VECS;
13421                 }
13422         }
13423
13424         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
13425             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719 ||
13426             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
13427                 tp->tg3_flags3 |= TG3_FLG3_SHORT_DMA_BUG;
13428         else if (!(tp->tg3_flags3 & TG3_FLG3_5755_PLUS)) {
13429                 tp->tg3_flags3 |= TG3_FLG3_4G_DMA_BNDRY_BUG;
13430                 tp->tg3_flags3 |= TG3_FLG3_40BIT_DMA_LIMIT_BUG;
13431         }
13432
13433         if ((tp->tg3_flags3 & TG3_FLG3_5717_PLUS) &&
13434             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5719)
13435                 tp->tg3_flags3 |= TG3_FLG3_USE_JUMBO_BDFLAG;
13436
13437         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ||
13438             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) ||
13439             (tp->tg3_flags3 & TG3_FLG3_USE_JUMBO_BDFLAG))
13440                 tp->tg3_flags |= TG3_FLAG_JUMBO_CAPABLE;
13441
13442         pci_read_config_dword(tp->pdev, TG3PCI_PCISTATE,
13443                               &pci_state_reg);
13444
13445         tp->pcie_cap = pci_find_capability(tp->pdev, PCI_CAP_ID_EXP);
13446         if (tp->pcie_cap != 0) {
13447                 u16 lnkctl;
13448
13449                 tp->tg3_flags2 |= TG3_FLG2_PCI_EXPRESS;
13450
13451                 tp->pcie_readrq = 4096;
13452                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719)
13453                         tp->pcie_readrq = 2048;
13454
13455                 pcie_set_readrq(tp->pdev, tp->pcie_readrq);
13456
13457                 pci_read_config_word(tp->pdev,
13458                                      tp->pcie_cap + PCI_EXP_LNKCTL,
13459                                      &lnkctl);
13460                 if (lnkctl & PCI_EXP_LNKCTL_CLKREQ_EN) {
13461                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
13462                                 tp->tg3_flags2 &= ~TG3_FLG2_HW_TSO_2;
13463                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
13464                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
13465                             tp->pci_chip_rev_id == CHIPREV_ID_57780_A0 ||
13466                             tp->pci_chip_rev_id == CHIPREV_ID_57780_A1)
13467                                 tp->tg3_flags3 |= TG3_FLG3_CLKREQ_BUG;
13468                 } else if (tp->pci_chip_rev_id == CHIPREV_ID_5717_A0) {
13469                         tp->tg3_flags3 |= TG3_FLG3_L1PLLPD_EN;
13470                 }
13471         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785) {
13472                 tp->tg3_flags2 |= TG3_FLG2_PCI_EXPRESS;
13473         } else if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ||
13474                    (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
13475                 tp->pcix_cap = pci_find_capability(tp->pdev, PCI_CAP_ID_PCIX);
13476                 if (!tp->pcix_cap) {
13477                         dev_err(&tp->pdev->dev,
13478                                 "Cannot find PCI-X capability, aborting\n");
13479                         return -EIO;
13480                 }
13481
13482                 if (!(pci_state_reg & PCISTATE_CONV_PCI_MODE))
13483                         tp->tg3_flags |= TG3_FLAG_PCIX_MODE;
13484         }
13485
13486         /* If we have an AMD 762 or VIA K8T800 chipset, write
13487          * reordering to the mailbox registers done by the host
13488          * controller can cause major troubles.  We read back from
13489          * every mailbox register write to force the writes to be
13490          * posted to the chip in order.
13491          */
13492         if (pci_dev_present(tg3_write_reorder_chipsets) &&
13493             !(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS))
13494                 tp->tg3_flags |= TG3_FLAG_MBOX_WRITE_REORDER;
13495
13496         pci_read_config_byte(tp->pdev, PCI_CACHE_LINE_SIZE,
13497                              &tp->pci_cacheline_sz);
13498         pci_read_config_byte(tp->pdev, PCI_LATENCY_TIMER,
13499                              &tp->pci_lat_timer);
13500         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 &&
13501             tp->pci_lat_timer < 64) {
13502                 tp->pci_lat_timer = 64;
13503                 pci_write_config_byte(tp->pdev, PCI_LATENCY_TIMER,
13504                                       tp->pci_lat_timer);
13505         }
13506
13507         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5700_BX) {
13508                 /* 5700 BX chips need to have their TX producer index
13509                  * mailboxes written twice to workaround a bug.
13510                  */
13511                 tp->tg3_flags |= TG3_FLAG_TXD_MBOX_HWBUG;
13512
13513                 /* If we are in PCI-X mode, enable register write workaround.
13514                  *
13515                  * The workaround is to use indirect register accesses
13516                  * for all chip writes not to mailbox registers.
13517                  */
13518                 if (tp->tg3_flags & TG3_FLAG_PCIX_MODE) {
13519                         u32 pm_reg;
13520
13521                         tp->tg3_flags |= TG3_FLAG_PCIX_TARGET_HWBUG;
13522
13523                         /* The chip can have it's power management PCI config
13524                          * space registers clobbered due to this bug.
13525                          * So explicitly force the chip into D0 here.
13526                          */
13527                         pci_read_config_dword(tp->pdev,
13528                                               tp->pm_cap + PCI_PM_CTRL,
13529                                               &pm_reg);
13530                         pm_reg &= ~PCI_PM_CTRL_STATE_MASK;
13531                         pm_reg |= PCI_PM_CTRL_PME_ENABLE | 0 /* D0 */;
13532                         pci_write_config_dword(tp->pdev,
13533                                                tp->pm_cap + PCI_PM_CTRL,
13534                                                pm_reg);
13535
13536                         /* Also, force SERR#/PERR# in PCI command. */
13537                         pci_read_config_word(tp->pdev, PCI_COMMAND, &pci_cmd);
13538                         pci_cmd |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
13539                         pci_write_config_word(tp->pdev, PCI_COMMAND, pci_cmd);
13540                 }
13541         }
13542
13543         if ((pci_state_reg & PCISTATE_BUS_SPEED_HIGH) != 0)
13544                 tp->tg3_flags |= TG3_FLAG_PCI_HIGH_SPEED;
13545         if ((pci_state_reg & PCISTATE_BUS_32BIT) != 0)
13546                 tp->tg3_flags |= TG3_FLAG_PCI_32BIT;
13547
13548         /* Chip-specific fixup from Broadcom driver */
13549         if ((tp->pci_chip_rev_id == CHIPREV_ID_5704_A0) &&
13550             (!(pci_state_reg & PCISTATE_RETRY_SAME_DMA))) {
13551                 pci_state_reg |= PCISTATE_RETRY_SAME_DMA;
13552                 pci_write_config_dword(tp->pdev, TG3PCI_PCISTATE, pci_state_reg);
13553         }
13554
13555         /* Default fast path register access methods */
13556         tp->read32 = tg3_read32;
13557         tp->write32 = tg3_write32;
13558         tp->read32_mbox = tg3_read32;
13559         tp->write32_mbox = tg3_write32;
13560         tp->write32_tx_mbox = tg3_write32;
13561         tp->write32_rx_mbox = tg3_write32;
13562
13563         /* Various workaround register access methods */
13564         if (tp->tg3_flags & TG3_FLAG_PCIX_TARGET_HWBUG)
13565                 tp->write32 = tg3_write_indirect_reg32;
13566         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701 ||
13567                  ((tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) &&
13568                   tp->pci_chip_rev_id == CHIPREV_ID_5750_A0)) {
13569                 /*
13570                  * Back to back register writes can cause problems on these
13571                  * chips, the workaround is to read back all reg writes
13572                  * except those to mailbox regs.
13573                  *
13574                  * See tg3_write_indirect_reg32().
13575                  */
13576                 tp->write32 = tg3_write_flush_reg32;
13577         }
13578
13579         if ((tp->tg3_flags & TG3_FLAG_TXD_MBOX_HWBUG) ||
13580             (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)) {
13581                 tp->write32_tx_mbox = tg3_write32_tx_mbox;
13582                 if (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)
13583                         tp->write32_rx_mbox = tg3_write_flush_reg32;
13584         }
13585
13586         if (tp->tg3_flags2 & TG3_FLG2_ICH_WORKAROUND) {
13587                 tp->read32 = tg3_read_indirect_reg32;
13588                 tp->write32 = tg3_write_indirect_reg32;
13589                 tp->read32_mbox = tg3_read_indirect_mbox;
13590                 tp->write32_mbox = tg3_write_indirect_mbox;
13591                 tp->write32_tx_mbox = tg3_write_indirect_mbox;
13592                 tp->write32_rx_mbox = tg3_write_indirect_mbox;
13593
13594                 iounmap(tp->regs);
13595                 tp->regs = NULL;
13596
13597                 pci_read_config_word(tp->pdev, PCI_COMMAND, &pci_cmd);
13598                 pci_cmd &= ~PCI_COMMAND_MEMORY;
13599                 pci_write_config_word(tp->pdev, PCI_COMMAND, pci_cmd);
13600         }
13601         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
13602                 tp->read32_mbox = tg3_read32_mbox_5906;
13603                 tp->write32_mbox = tg3_write32_mbox_5906;
13604                 tp->write32_tx_mbox = tg3_write32_mbox_5906;
13605                 tp->write32_rx_mbox = tg3_write32_mbox_5906;
13606         }
13607
13608         if (tp->write32 == tg3_write_indirect_reg32 ||
13609             ((tp->tg3_flags & TG3_FLAG_PCIX_MODE) &&
13610              (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
13611               GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)))
13612                 tp->tg3_flags |= TG3_FLAG_SRAM_USE_CONFIG;
13613
13614         /* Get eeprom hw config before calling tg3_set_power_state().
13615          * In particular, the TG3_FLG2_IS_NIC flag must be
13616          * determined before calling tg3_set_power_state() so that
13617          * we know whether or not to switch out of Vaux power.
13618          * When the flag is set, it means that GPIO1 is used for eeprom
13619          * write protect and also implies that it is a LOM where GPIOs
13620          * are not used to switch power.
13621          */
13622         tg3_get_eeprom_hw_cfg(tp);
13623
13624         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
13625                 /* Allow reads and writes to the
13626                  * APE register and memory space.
13627                  */
13628                 pci_state_reg |= PCISTATE_ALLOW_APE_CTLSPC_WR |
13629                                  PCISTATE_ALLOW_APE_SHMEM_WR |
13630                                  PCISTATE_ALLOW_APE_PSPACE_WR;
13631                 pci_write_config_dword(tp->pdev, TG3PCI_PCISTATE,
13632                                        pci_state_reg);
13633         }
13634
13635         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
13636             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
13637             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
13638             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 ||
13639             (tp->tg3_flags3 & TG3_FLG3_5717_PLUS))
13640                 tp->tg3_flags |= TG3_FLAG_CPMU_PRESENT;
13641
13642         /* Set up tp->grc_local_ctrl before calling tg_power_up().
13643          * GPIO1 driven high will bring 5700's external PHY out of reset.
13644          * It is also used as eeprom write protect on LOMs.
13645          */
13646         tp->grc_local_ctrl = GRC_LCLCTRL_INT_ON_ATTN | GRC_LCLCTRL_AUTO_SEEPROM;
13647         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) ||
13648             (tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT))
13649                 tp->grc_local_ctrl |= (GRC_LCLCTRL_GPIO_OE1 |
13650                                        GRC_LCLCTRL_GPIO_OUTPUT1);
13651         /* Unused GPIO3 must be driven as output on 5752 because there
13652          * are no pull-up resistors on unused GPIO pins.
13653          */
13654         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752)
13655                 tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE3;
13656
13657         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 ||
13658             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 ||
13659             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
13660                 tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_UART_SEL;
13661
13662         if (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5761 ||
13663             tp->pdev->device == TG3PCI_DEVICE_TIGON3_5761S) {
13664                 /* Turn off the debug UART. */
13665                 tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_UART_SEL;
13666                 if (tp->tg3_flags2 & TG3_FLG2_IS_NIC)
13667                         /* Keep VMain power. */
13668                         tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE0 |
13669                                               GRC_LCLCTRL_GPIO_OUTPUT0;
13670         }
13671
13672         /* Force the chip into D0. */
13673         err = tg3_power_up(tp);
13674         if (err) {
13675                 dev_err(&tp->pdev->dev, "Transition to D0 failed\n");
13676                 return err;
13677         }
13678
13679         /* Derive initial jumbo mode from MTU assigned in
13680          * ether_setup() via the alloc_etherdev() call
13681          */
13682         if (tp->dev->mtu > ETH_DATA_LEN &&
13683             !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
13684                 tp->tg3_flags |= TG3_FLAG_JUMBO_RING_ENABLE;
13685
13686         /* Determine WakeOnLan speed to use. */
13687         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
13688             tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
13689             tp->pci_chip_rev_id == CHIPREV_ID_5701_B0 ||
13690             tp->pci_chip_rev_id == CHIPREV_ID_5701_B2) {
13691                 tp->tg3_flags &= ~(TG3_FLAG_WOL_SPEED_100MB);
13692         } else {
13693                 tp->tg3_flags |= TG3_FLAG_WOL_SPEED_100MB;
13694         }
13695
13696         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
13697                 tp->phy_flags |= TG3_PHYFLG_IS_FET;
13698
13699         /* A few boards don't want Ethernet@WireSpeed phy feature */
13700         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) ||
13701             ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) &&
13702              (tp->pci_chip_rev_id != CHIPREV_ID_5705_A0) &&
13703              (tp->pci_chip_rev_id != CHIPREV_ID_5705_A1)) ||
13704             (tp->phy_flags & TG3_PHYFLG_IS_FET) ||
13705             (tp->phy_flags & TG3_PHYFLG_ANY_SERDES))
13706                 tp->phy_flags |= TG3_PHYFLG_NO_ETH_WIRE_SPEED;
13707
13708         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5703_AX ||
13709             GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5704_AX)
13710                 tp->phy_flags |= TG3_PHYFLG_ADC_BUG;
13711         if (tp->pci_chip_rev_id == CHIPREV_ID_5704_A0)
13712                 tp->phy_flags |= TG3_PHYFLG_5704_A0_BUG;
13713
13714         if ((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
13715             !(tp->phy_flags & TG3_PHYFLG_IS_FET) &&
13716             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785 &&
13717             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_57780 &&
13718             !(tp->tg3_flags3 & TG3_FLG3_5717_PLUS)) {
13719                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 ||
13720                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5787 ||
13721                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
13722                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761) {
13723                         if (tp->pdev->device != PCI_DEVICE_ID_TIGON3_5756 &&
13724                             tp->pdev->device != PCI_DEVICE_ID_TIGON3_5722)
13725                                 tp->phy_flags |= TG3_PHYFLG_JITTER_BUG;
13726                         if (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5755M)
13727                                 tp->phy_flags |= TG3_PHYFLG_ADJUST_TRIM;
13728                 } else
13729                         tp->phy_flags |= TG3_PHYFLG_BER_BUG;
13730         }
13731
13732         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
13733             GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) {
13734                 tp->phy_otp = tg3_read_otp_phycfg(tp);
13735                 if (tp->phy_otp == 0)
13736                         tp->phy_otp = TG3_OTP_DEFAULT;
13737         }
13738
13739         if (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT)
13740                 tp->mi_mode = MAC_MI_MODE_500KHZ_CONST;
13741         else
13742                 tp->mi_mode = MAC_MI_MODE_BASE;
13743
13744         tp->coalesce_mode = 0;
13745         if (GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5700_AX &&
13746             GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5700_BX)
13747                 tp->coalesce_mode |= HOSTCC_MODE_32BYTE;
13748
13749         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
13750             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
13751                 tp->tg3_flags3 |= TG3_FLG3_USE_PHYLIB;
13752
13753         err = tg3_mdio_init(tp);
13754         if (err)
13755                 return err;
13756
13757         /* Initialize data/descriptor byte/word swapping. */
13758         val = tr32(GRC_MODE);
13759         val &= GRC_MODE_HOST_STACKUP;
13760         tw32(GRC_MODE, val | tp->grc_mode);
13761
13762         tg3_switch_clocks(tp);
13763
13764         /* Clear this out for sanity. */
13765         tw32(TG3PCI_MEM_WIN_BASE_ADDR, 0);
13766
13767         pci_read_config_dword(tp->pdev, TG3PCI_PCISTATE,
13768                               &pci_state_reg);
13769         if ((pci_state_reg & PCISTATE_CONV_PCI_MODE) == 0 &&
13770             (tp->tg3_flags & TG3_FLAG_PCIX_TARGET_HWBUG) == 0) {
13771                 u32 chiprevid = GET_CHIP_REV_ID(tp->misc_host_ctrl);
13772
13773                 if (chiprevid == CHIPREV_ID_5701_A0 ||
13774                     chiprevid == CHIPREV_ID_5701_B0 ||
13775                     chiprevid == CHIPREV_ID_5701_B2 ||
13776                     chiprevid == CHIPREV_ID_5701_B5) {
13777                         void __iomem *sram_base;
13778
13779                         /* Write some dummy words into the SRAM status block
13780                          * area, see if it reads back correctly.  If the return
13781                          * value is bad, force enable the PCIX workaround.
13782                          */
13783                         sram_base = tp->regs + NIC_SRAM_WIN_BASE + NIC_SRAM_STATS_BLK;
13784
13785                         writel(0x00000000, sram_base);
13786                         writel(0x00000000, sram_base + 4);
13787                         writel(0xffffffff, sram_base + 4);
13788                         if (readl(sram_base) != 0x00000000)
13789                                 tp->tg3_flags |= TG3_FLAG_PCIX_TARGET_HWBUG;
13790                 }
13791         }
13792
13793         udelay(50);
13794         tg3_nvram_init(tp);
13795
13796         grc_misc_cfg = tr32(GRC_MISC_CFG);
13797         grc_misc_cfg &= GRC_MISC_CFG_BOARD_ID_MASK;
13798
13799         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 &&
13800             (grc_misc_cfg == GRC_MISC_CFG_BOARD_ID_5788 ||
13801              grc_misc_cfg == GRC_MISC_CFG_BOARD_ID_5788M))
13802                 tp->tg3_flags2 |= TG3_FLG2_IS_5788;
13803
13804         if (!(tp->tg3_flags2 & TG3_FLG2_IS_5788) &&
13805             (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700))
13806                 tp->tg3_flags |= TG3_FLAG_TAGGED_STATUS;
13807         if (tp->tg3_flags & TG3_FLAG_TAGGED_STATUS) {
13808                 tp->coalesce_mode |= (HOSTCC_MODE_CLRTICK_RXBD |
13809                                       HOSTCC_MODE_CLRTICK_TXBD);
13810
13811                 tp->misc_host_ctrl |= MISC_HOST_CTRL_TAGGED_STATUS;
13812                 pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
13813                                        tp->misc_host_ctrl);
13814         }
13815
13816         /* Preserve the APE MAC_MODE bits */
13817         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
13818                 tp->mac_mode = MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN;
13819         else
13820                 tp->mac_mode = TG3_DEF_MAC_MODE;
13821
13822         /* these are limited to 10/100 only */
13823         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 &&
13824              (grc_misc_cfg == 0x8000 || grc_misc_cfg == 0x4000)) ||
13825             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 &&
13826              tp->pdev->vendor == PCI_VENDOR_ID_BROADCOM &&
13827              (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5901 ||
13828               tp->pdev->device == PCI_DEVICE_ID_TIGON3_5901_2 ||
13829               tp->pdev->device == PCI_DEVICE_ID_TIGON3_5705F)) ||
13830             (tp->pdev->vendor == PCI_VENDOR_ID_BROADCOM &&
13831              (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5751F ||
13832               tp->pdev->device == PCI_DEVICE_ID_TIGON3_5753F ||
13833               tp->pdev->device == PCI_DEVICE_ID_TIGON3_5787F)) ||
13834             tp->pdev->device == TG3PCI_DEVICE_TIGON3_57790 ||
13835             tp->pdev->device == TG3PCI_DEVICE_TIGON3_57791 ||
13836             tp->pdev->device == TG3PCI_DEVICE_TIGON3_57795 ||
13837             (tp->phy_flags & TG3_PHYFLG_IS_FET))
13838                 tp->phy_flags |= TG3_PHYFLG_10_100_ONLY;
13839
13840         err = tg3_phy_probe(tp);
13841         if (err) {
13842                 dev_err(&tp->pdev->dev, "phy probe failed, err %d\n", err);
13843                 /* ... but do not return immediately ... */
13844                 tg3_mdio_fini(tp);
13845         }
13846
13847         tg3_read_vpd(tp);
13848         tg3_read_fw_ver(tp);
13849
13850         if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES) {
13851                 tp->phy_flags &= ~TG3_PHYFLG_USE_MI_INTERRUPT;
13852         } else {
13853                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700)
13854                         tp->phy_flags |= TG3_PHYFLG_USE_MI_INTERRUPT;
13855                 else
13856                         tp->phy_flags &= ~TG3_PHYFLG_USE_MI_INTERRUPT;
13857         }
13858
13859         /* 5700 {AX,BX} chips have a broken status block link
13860          * change bit implementation, so we must use the
13861          * status register in those cases.
13862          */
13863         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700)
13864                 tp->tg3_flags |= TG3_FLAG_USE_LINKCHG_REG;
13865         else
13866                 tp->tg3_flags &= ~TG3_FLAG_USE_LINKCHG_REG;
13867
13868         /* The led_ctrl is set during tg3_phy_probe, here we might
13869          * have to force the link status polling mechanism based
13870          * upon subsystem IDs.
13871          */
13872         if (tp->pdev->subsystem_vendor == PCI_VENDOR_ID_DELL &&
13873             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701 &&
13874             !(tp->phy_flags & TG3_PHYFLG_PHY_SERDES)) {
13875                 tp->phy_flags |= TG3_PHYFLG_USE_MI_INTERRUPT;
13876                 tp->tg3_flags |= TG3_FLAG_USE_LINKCHG_REG;
13877         }
13878
13879         /* For all SERDES we poll the MAC status register. */
13880         if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES)
13881                 tp->tg3_flags |= TG3_FLAG_POLL_SERDES;
13882         else
13883                 tp->tg3_flags &= ~TG3_FLAG_POLL_SERDES;
13884
13885         tp->rx_offset = NET_IP_ALIGN;
13886         tp->rx_copy_thresh = TG3_RX_COPY_THRESHOLD;
13887         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701 &&
13888             (tp->tg3_flags & TG3_FLAG_PCIX_MODE) != 0) {
13889                 tp->rx_offset = 0;
13890 #ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
13891                 tp->rx_copy_thresh = ~(u16)0;
13892 #endif
13893         }
13894
13895         tp->rx_std_ring_mask = TG3_RX_STD_RING_SIZE(tp) - 1;
13896         tp->rx_jmb_ring_mask = TG3_RX_JMB_RING_SIZE(tp) - 1;
13897         tp->rx_ret_ring_mask = tg3_rx_ret_ring_size(tp) - 1;
13898
13899         tp->rx_std_max_post = tp->rx_std_ring_mask + 1;
13900
13901         /* Increment the rx prod index on the rx std ring by at most
13902          * 8 for these chips to workaround hw errata.
13903          */
13904         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750 ||
13905             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752 ||
13906             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755)
13907                 tp->rx_std_max_post = 8;
13908
13909         if (tp->tg3_flags & TG3_FLAG_ASPM_WORKAROUND)
13910                 tp->pwrmgmt_thresh = tr32(PCIE_PWR_MGMT_THRESH) &
13911                                      PCIE_PWR_MGMT_L1_THRESH_MSK;
13912
13913         return err;
13914 }
13915
13916 #ifdef CONFIG_SPARC
13917 static int __devinit tg3_get_macaddr_sparc(struct tg3 *tp)
13918 {
13919         struct net_device *dev = tp->dev;
13920         struct pci_dev *pdev = tp->pdev;
13921         struct device_node *dp = pci_device_to_OF_node(pdev);
13922         const unsigned char *addr;
13923         int len;
13924
13925         addr = of_get_property(dp, "local-mac-address", &len);
13926         if (addr && len == 6) {
13927                 memcpy(dev->dev_addr, addr, 6);
13928                 memcpy(dev->perm_addr, dev->dev_addr, 6);
13929                 return 0;
13930         }
13931         return -ENODEV;
13932 }
13933
13934 static int __devinit tg3_get_default_macaddr_sparc(struct tg3 *tp)
13935 {
13936         struct net_device *dev = tp->dev;
13937
13938         memcpy(dev->dev_addr, idprom->id_ethaddr, 6);
13939         memcpy(dev->perm_addr, idprom->id_ethaddr, 6);
13940         return 0;
13941 }
13942 #endif
13943
13944 static int __devinit tg3_get_device_address(struct tg3 *tp)
13945 {
13946         struct net_device *dev = tp->dev;
13947         u32 hi, lo, mac_offset;
13948         int addr_ok = 0;
13949
13950 #ifdef CONFIG_SPARC
13951         if (!tg3_get_macaddr_sparc(tp))
13952                 return 0;
13953 #endif
13954
13955         mac_offset = 0x7c;
13956         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) ||
13957             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
13958                 if (tr32(TG3PCI_DUAL_MAC_CTRL) & DUAL_MAC_CTRL_ID)
13959                         mac_offset = 0xcc;
13960                 if (tg3_nvram_lock(tp))
13961                         tw32_f(NVRAM_CMD, NVRAM_CMD_RESET);
13962                 else
13963                         tg3_nvram_unlock(tp);
13964         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
13965                    GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719) {
13966                 if (PCI_FUNC(tp->pdev->devfn) & 1)
13967                         mac_offset = 0xcc;
13968                 if (PCI_FUNC(tp->pdev->devfn) > 1)
13969                         mac_offset += 0x18c;
13970         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
13971                 mac_offset = 0x10;
13972
13973         /* First try to get it from MAC address mailbox. */
13974         tg3_read_mem(tp, NIC_SRAM_MAC_ADDR_HIGH_MBOX, &hi);
13975         if ((hi >> 16) == 0x484b) {
13976                 dev->dev_addr[0] = (hi >>  8) & 0xff;
13977                 dev->dev_addr[1] = (hi >>  0) & 0xff;
13978
13979                 tg3_read_mem(tp, NIC_SRAM_MAC_ADDR_LOW_MBOX, &lo);
13980                 dev->dev_addr[2] = (lo >> 24) & 0xff;
13981                 dev->dev_addr[3] = (lo >> 16) & 0xff;
13982                 dev->dev_addr[4] = (lo >>  8) & 0xff;
13983                 dev->dev_addr[5] = (lo >>  0) & 0xff;
13984
13985                 /* Some old bootcode may report a 0 MAC address in SRAM */
13986                 addr_ok = is_valid_ether_addr(&dev->dev_addr[0]);
13987         }
13988         if (!addr_ok) {
13989                 /* Next, try NVRAM. */
13990                 if (!(tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) &&
13991                     !tg3_nvram_read_be32(tp, mac_offset + 0, &hi) &&
13992                     !tg3_nvram_read_be32(tp, mac_offset + 4, &lo)) {
13993                         memcpy(&dev->dev_addr[0], ((char *)&hi) + 2, 2);
13994                         memcpy(&dev->dev_addr[2], (char *)&lo, sizeof(lo));
13995                 }
13996                 /* Finally just fetch it out of the MAC control regs. */
13997                 else {
13998                         hi = tr32(MAC_ADDR_0_HIGH);
13999                         lo = tr32(MAC_ADDR_0_LOW);
14000
14001                         dev->dev_addr[5] = lo & 0xff;
14002                         dev->dev_addr[4] = (lo >> 8) & 0xff;
14003                         dev->dev_addr[3] = (lo >> 16) & 0xff;
14004                         dev->dev_addr[2] = (lo >> 24) & 0xff;
14005                         dev->dev_addr[1] = hi & 0xff;
14006                         dev->dev_addr[0] = (hi >> 8) & 0xff;
14007                 }
14008         }
14009
14010         if (!is_valid_ether_addr(&dev->dev_addr[0])) {
14011 #ifdef CONFIG_SPARC
14012                 if (!tg3_get_default_macaddr_sparc(tp))
14013                         return 0;
14014 #endif
14015                 return -EINVAL;
14016         }
14017         memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
14018         return 0;
14019 }
14020
14021 #define BOUNDARY_SINGLE_CACHELINE       1
14022 #define BOUNDARY_MULTI_CACHELINE        2
14023
14024 static u32 __devinit tg3_calc_dma_bndry(struct tg3 *tp, u32 val)
14025 {
14026         int cacheline_size;
14027         u8 byte;
14028         int goal;
14029
14030         pci_read_config_byte(tp->pdev, PCI_CACHE_LINE_SIZE, &byte);
14031         if (byte == 0)
14032                 cacheline_size = 1024;
14033         else
14034                 cacheline_size = (int) byte * 4;
14035
14036         /* On 5703 and later chips, the boundary bits have no
14037          * effect.
14038          */
14039         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
14040             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701 &&
14041             !(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS))
14042                 goto out;
14043
14044 #if defined(CONFIG_PPC64) || defined(CONFIG_IA64) || defined(CONFIG_PARISC)
14045         goal = BOUNDARY_MULTI_CACHELINE;
14046 #else
14047 #if defined(CONFIG_SPARC64) || defined(CONFIG_ALPHA)
14048         goal = BOUNDARY_SINGLE_CACHELINE;
14049 #else
14050         goal = 0;
14051 #endif
14052 #endif
14053
14054         if (tp->tg3_flags3 & TG3_FLG3_5717_PLUS) {
14055                 val = goal ? 0 : DMA_RWCTRL_DIS_CACHE_ALIGNMENT;
14056                 goto out;
14057         }
14058
14059         if (!goal)
14060                 goto out;
14061
14062         /* PCI controllers on most RISC systems tend to disconnect
14063          * when a device tries to burst across a cache-line boundary.
14064          * Therefore, letting tg3 do so just wastes PCI bandwidth.
14065          *
14066          * Unfortunately, for PCI-E there are only limited
14067          * write-side controls for this, and thus for reads
14068          * we will still get the disconnects.  We'll also waste
14069          * these PCI cycles for both read and write for chips
14070          * other than 5700 and 5701 which do not implement the
14071          * boundary bits.
14072          */
14073         if ((tp->tg3_flags & TG3_FLAG_PCIX_MODE) &&
14074             !(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS)) {
14075                 switch (cacheline_size) {
14076                 case 16:
14077                 case 32:
14078                 case 64:
14079                 case 128:
14080                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
14081                                 val |= (DMA_RWCTRL_READ_BNDRY_128_PCIX |
14082                                         DMA_RWCTRL_WRITE_BNDRY_128_PCIX);
14083                         } else {
14084                                 val |= (DMA_RWCTRL_READ_BNDRY_384_PCIX |
14085                                         DMA_RWCTRL_WRITE_BNDRY_384_PCIX);
14086                         }
14087                         break;
14088
14089                 case 256:
14090                         val |= (DMA_RWCTRL_READ_BNDRY_256_PCIX |
14091                                 DMA_RWCTRL_WRITE_BNDRY_256_PCIX);
14092                         break;
14093
14094                 default:
14095                         val |= (DMA_RWCTRL_READ_BNDRY_384_PCIX |
14096                                 DMA_RWCTRL_WRITE_BNDRY_384_PCIX);
14097                         break;
14098                 }
14099         } else if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
14100                 switch (cacheline_size) {
14101                 case 16:
14102                 case 32:
14103                 case 64:
14104                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
14105                                 val &= ~DMA_RWCTRL_WRITE_BNDRY_DISAB_PCIE;
14106                                 val |= DMA_RWCTRL_WRITE_BNDRY_64_PCIE;
14107                                 break;
14108                         }
14109                         /* fallthrough */
14110                 case 128:
14111                 default:
14112                         val &= ~DMA_RWCTRL_WRITE_BNDRY_DISAB_PCIE;
14113                         val |= DMA_RWCTRL_WRITE_BNDRY_128_PCIE;
14114                         break;
14115                 }
14116         } else {
14117                 switch (cacheline_size) {
14118                 case 16:
14119                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
14120                                 val |= (DMA_RWCTRL_READ_BNDRY_16 |
14121                                         DMA_RWCTRL_WRITE_BNDRY_16);
14122                                 break;
14123                         }
14124                         /* fallthrough */
14125                 case 32:
14126                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
14127                                 val |= (DMA_RWCTRL_READ_BNDRY_32 |
14128                                         DMA_RWCTRL_WRITE_BNDRY_32);
14129                                 break;
14130                         }
14131                         /* fallthrough */
14132                 case 64:
14133                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
14134                                 val |= (DMA_RWCTRL_READ_BNDRY_64 |
14135                                         DMA_RWCTRL_WRITE_BNDRY_64);
14136                                 break;
14137                         }
14138                         /* fallthrough */
14139                 case 128:
14140                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
14141                                 val |= (DMA_RWCTRL_READ_BNDRY_128 |
14142                                         DMA_RWCTRL_WRITE_BNDRY_128);
14143                                 break;
14144                         }
14145                         /* fallthrough */
14146                 case 256:
14147                         val |= (DMA_RWCTRL_READ_BNDRY_256 |
14148                                 DMA_RWCTRL_WRITE_BNDRY_256);
14149                         break;
14150                 case 512:
14151                         val |= (DMA_RWCTRL_READ_BNDRY_512 |
14152                                 DMA_RWCTRL_WRITE_BNDRY_512);
14153                         break;
14154                 case 1024:
14155                 default:
14156                         val |= (DMA_RWCTRL_READ_BNDRY_1024 |
14157                                 DMA_RWCTRL_WRITE_BNDRY_1024);
14158                         break;
14159                 }
14160         }
14161
14162 out:
14163         return val;
14164 }
14165
14166 static int __devinit tg3_do_test_dma(struct tg3 *tp, u32 *buf, dma_addr_t buf_dma, int size, int to_device)
14167 {
14168         struct tg3_internal_buffer_desc test_desc;
14169         u32 sram_dma_descs;
14170         int i, ret;
14171
14172         sram_dma_descs = NIC_SRAM_DMA_DESC_POOL_BASE;
14173
14174         tw32(FTQ_RCVBD_COMP_FIFO_ENQDEQ, 0);
14175         tw32(FTQ_RCVDATA_COMP_FIFO_ENQDEQ, 0);
14176         tw32(RDMAC_STATUS, 0);
14177         tw32(WDMAC_STATUS, 0);
14178
14179         tw32(BUFMGR_MODE, 0);
14180         tw32(FTQ_RESET, 0);
14181
14182         test_desc.addr_hi = ((u64) buf_dma) >> 32;
14183         test_desc.addr_lo = buf_dma & 0xffffffff;
14184         test_desc.nic_mbuf = 0x00002100;
14185         test_desc.len = size;
14186
14187         /*
14188          * HP ZX1 was seeing test failures for 5701 cards running at 33Mhz
14189          * the *second* time the tg3 driver was getting loaded after an
14190          * initial scan.
14191          *
14192          * Broadcom tells me:
14193          *   ...the DMA engine is connected to the GRC block and a DMA
14194          *   reset may affect the GRC block in some unpredictable way...
14195          *   The behavior of resets to individual blocks has not been tested.
14196          *
14197          * Broadcom noted the GRC reset will also reset all sub-components.
14198          */
14199         if (to_device) {
14200                 test_desc.cqid_sqid = (13 << 8) | 2;
14201
14202                 tw32_f(RDMAC_MODE, RDMAC_MODE_ENABLE);
14203                 udelay(40);
14204         } else {
14205                 test_desc.cqid_sqid = (16 << 8) | 7;
14206
14207                 tw32_f(WDMAC_MODE, WDMAC_MODE_ENABLE);
14208                 udelay(40);
14209         }
14210         test_desc.flags = 0x00000005;
14211
14212         for (i = 0; i < (sizeof(test_desc) / sizeof(u32)); i++) {
14213                 u32 val;
14214
14215                 val = *(((u32 *)&test_desc) + i);
14216                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR,
14217                                        sram_dma_descs + (i * sizeof(u32)));
14218                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_DATA, val);
14219         }
14220         pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, 0);
14221
14222         if (to_device)
14223                 tw32(FTQ_DMA_HIGH_READ_FIFO_ENQDEQ, sram_dma_descs);
14224         else
14225                 tw32(FTQ_DMA_HIGH_WRITE_FIFO_ENQDEQ, sram_dma_descs);
14226
14227         ret = -ENODEV;
14228         for (i = 0; i < 40; i++) {
14229                 u32 val;
14230
14231                 if (to_device)
14232                         val = tr32(FTQ_RCVBD_COMP_FIFO_ENQDEQ);
14233                 else
14234                         val = tr32(FTQ_RCVDATA_COMP_FIFO_ENQDEQ);
14235                 if ((val & 0xffff) == sram_dma_descs) {
14236                         ret = 0;
14237                         break;
14238                 }
14239
14240                 udelay(100);
14241         }
14242
14243         return ret;
14244 }
14245
14246 #define TEST_BUFFER_SIZE        0x2000
14247
14248 static DEFINE_PCI_DEVICE_TABLE(tg3_dma_wait_state_chipsets) = {
14249         { PCI_DEVICE(PCI_VENDOR_ID_APPLE, PCI_DEVICE_ID_APPLE_UNI_N_PCI15) },
14250         { },
14251 };
14252
14253 static int __devinit tg3_test_dma(struct tg3 *tp)
14254 {
14255         dma_addr_t buf_dma;
14256         u32 *buf, saved_dma_rwctrl;
14257         int ret = 0;
14258
14259         buf = dma_alloc_coherent(&tp->pdev->dev, TEST_BUFFER_SIZE,
14260                                  &buf_dma, GFP_KERNEL);
14261         if (!buf) {
14262                 ret = -ENOMEM;
14263                 goto out_nofree;
14264         }
14265
14266         tp->dma_rwctrl = ((0x7 << DMA_RWCTRL_PCI_WRITE_CMD_SHIFT) |
14267                           (0x6 << DMA_RWCTRL_PCI_READ_CMD_SHIFT));
14268
14269         tp->dma_rwctrl = tg3_calc_dma_bndry(tp, tp->dma_rwctrl);
14270
14271         if (tp->tg3_flags3 & TG3_FLG3_5717_PLUS)
14272                 goto out;
14273
14274         if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
14275                 /* DMA read watermark not used on PCIE */
14276                 tp->dma_rwctrl |= 0x00180000;
14277         } else if (!(tp->tg3_flags & TG3_FLAG_PCIX_MODE)) {
14278                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 ||
14279                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750)
14280                         tp->dma_rwctrl |= 0x003f0000;
14281                 else
14282                         tp->dma_rwctrl |= 0x003f000f;
14283         } else {
14284                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
14285                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
14286                         u32 ccval = (tr32(TG3PCI_CLOCK_CTRL) & 0x1f);
14287                         u32 read_water = 0x7;
14288
14289                         /* If the 5704 is behind the EPB bridge, we can
14290                          * do the less restrictive ONE_DMA workaround for
14291                          * better performance.
14292                          */
14293                         if ((tp->tg3_flags & TG3_FLAG_40BIT_DMA_BUG) &&
14294                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704)
14295                                 tp->dma_rwctrl |= 0x8000;
14296                         else if (ccval == 0x6 || ccval == 0x7)
14297                                 tp->dma_rwctrl |= DMA_RWCTRL_ONE_DMA;
14298
14299                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703)
14300                                 read_water = 4;
14301                         /* Set bit 23 to enable PCIX hw bug fix */
14302                         tp->dma_rwctrl |=
14303                                 (read_water << DMA_RWCTRL_READ_WATER_SHIFT) |
14304                                 (0x3 << DMA_RWCTRL_WRITE_WATER_SHIFT) |
14305                                 (1 << 23);
14306                 } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780) {
14307                         /* 5780 always in PCIX mode */
14308                         tp->dma_rwctrl |= 0x00144000;
14309                 } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714) {
14310                         /* 5714 always in PCIX mode */
14311                         tp->dma_rwctrl |= 0x00148000;
14312                 } else {
14313                         tp->dma_rwctrl |= 0x001b000f;
14314                 }
14315         }
14316
14317         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
14318             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704)
14319                 tp->dma_rwctrl &= 0xfffffff0;
14320
14321         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
14322             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
14323                 /* Remove this if it causes problems for some boards. */
14324                 tp->dma_rwctrl |= DMA_RWCTRL_USE_MEM_READ_MULT;
14325
14326                 /* On 5700/5701 chips, we need to set this bit.
14327                  * Otherwise the chip will issue cacheline transactions
14328                  * to streamable DMA memory with not all the byte
14329                  * enables turned on.  This is an error on several
14330                  * RISC PCI controllers, in particular sparc64.
14331                  *
14332                  * On 5703/5704 chips, this bit has been reassigned
14333                  * a different meaning.  In particular, it is used
14334                  * on those chips to enable a PCI-X workaround.
14335                  */
14336                 tp->dma_rwctrl |= DMA_RWCTRL_ASSERT_ALL_BE;
14337         }
14338
14339         tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
14340
14341 #if 0
14342         /* Unneeded, already done by tg3_get_invariants.  */
14343         tg3_switch_clocks(tp);
14344 #endif
14345
14346         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
14347             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701)
14348                 goto out;
14349
14350         /* It is best to perform DMA test with maximum write burst size
14351          * to expose the 5700/5701 write DMA bug.
14352          */
14353         saved_dma_rwctrl = tp->dma_rwctrl;
14354         tp->dma_rwctrl &= ~DMA_RWCTRL_WRITE_BNDRY_MASK;
14355         tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
14356
14357         while (1) {
14358                 u32 *p = buf, i;
14359
14360                 for (i = 0; i < TEST_BUFFER_SIZE / sizeof(u32); i++)
14361                         p[i] = i;
14362
14363                 /* Send the buffer to the chip. */
14364                 ret = tg3_do_test_dma(tp, buf, buf_dma, TEST_BUFFER_SIZE, 1);
14365                 if (ret) {
14366                         dev_err(&tp->pdev->dev,
14367                                 "%s: Buffer write failed. err = %d\n",
14368                                 __func__, ret);
14369                         break;
14370                 }
14371
14372 #if 0
14373                 /* validate data reached card RAM correctly. */
14374                 for (i = 0; i < TEST_BUFFER_SIZE / sizeof(u32); i++) {
14375                         u32 val;
14376                         tg3_read_mem(tp, 0x2100 + (i*4), &val);
14377                         if (le32_to_cpu(val) != p[i]) {
14378                                 dev_err(&tp->pdev->dev,
14379                                         "%s: Buffer corrupted on device! "
14380                                         "(%d != %d)\n", __func__, val, i);
14381                                 /* ret = -ENODEV here? */
14382                         }
14383                         p[i] = 0;
14384                 }
14385 #endif
14386                 /* Now read it back. */
14387                 ret = tg3_do_test_dma(tp, buf, buf_dma, TEST_BUFFER_SIZE, 0);
14388                 if (ret) {
14389                         dev_err(&tp->pdev->dev, "%s: Buffer read failed. "
14390                                 "err = %d\n", __func__, ret);
14391                         break;
14392                 }
14393
14394                 /* Verify it. */
14395                 for (i = 0; i < TEST_BUFFER_SIZE / sizeof(u32); i++) {
14396                         if (p[i] == i)
14397                                 continue;
14398
14399                         if ((tp->dma_rwctrl & DMA_RWCTRL_WRITE_BNDRY_MASK) !=
14400                             DMA_RWCTRL_WRITE_BNDRY_16) {
14401                                 tp->dma_rwctrl &= ~DMA_RWCTRL_WRITE_BNDRY_MASK;
14402                                 tp->dma_rwctrl |= DMA_RWCTRL_WRITE_BNDRY_16;
14403                                 tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
14404                                 break;
14405                         } else {
14406                                 dev_err(&tp->pdev->dev,
14407                                         "%s: Buffer corrupted on read back! "
14408                                         "(%d != %d)\n", __func__, p[i], i);
14409                                 ret = -ENODEV;
14410                                 goto out;
14411                         }
14412                 }
14413
14414                 if (i == (TEST_BUFFER_SIZE / sizeof(u32))) {
14415                         /* Success. */
14416                         ret = 0;
14417                         break;
14418                 }
14419         }
14420         if ((tp->dma_rwctrl & DMA_RWCTRL_WRITE_BNDRY_MASK) !=
14421             DMA_RWCTRL_WRITE_BNDRY_16) {
14422
14423                 /* DMA test passed without adjusting DMA boundary,
14424                  * now look for chipsets that are known to expose the
14425                  * DMA bug without failing the test.
14426                  */
14427                 if (pci_dev_present(tg3_dma_wait_state_chipsets)) {
14428                         tp->dma_rwctrl &= ~DMA_RWCTRL_WRITE_BNDRY_MASK;
14429                         tp->dma_rwctrl |= DMA_RWCTRL_WRITE_BNDRY_16;
14430                 } else {
14431                         /* Safe to use the calculated DMA boundary. */
14432                         tp->dma_rwctrl = saved_dma_rwctrl;
14433                 }
14434
14435                 tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
14436         }
14437
14438 out:
14439         dma_free_coherent(&tp->pdev->dev, TEST_BUFFER_SIZE, buf, buf_dma);
14440 out_nofree:
14441         return ret;
14442 }
14443
14444 static void __devinit tg3_init_bufmgr_config(struct tg3 *tp)
14445 {
14446         if (tp->tg3_flags3 & TG3_FLG3_5717_PLUS) {
14447                 tp->bufmgr_config.mbuf_read_dma_low_water =
14448                         DEFAULT_MB_RDMA_LOW_WATER_5705;
14449                 tp->bufmgr_config.mbuf_mac_rx_low_water =
14450                         DEFAULT_MB_MACRX_LOW_WATER_57765;
14451                 tp->bufmgr_config.mbuf_high_water =
14452                         DEFAULT_MB_HIGH_WATER_57765;
14453
14454                 tp->bufmgr_config.mbuf_read_dma_low_water_jumbo =
14455                         DEFAULT_MB_RDMA_LOW_WATER_5705;
14456                 tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo =
14457                         DEFAULT_MB_MACRX_LOW_WATER_JUMBO_57765;
14458                 tp->bufmgr_config.mbuf_high_water_jumbo =
14459                         DEFAULT_MB_HIGH_WATER_JUMBO_57765;
14460         } else if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
14461                 tp->bufmgr_config.mbuf_read_dma_low_water =
14462                         DEFAULT_MB_RDMA_LOW_WATER_5705;
14463                 tp->bufmgr_config.mbuf_mac_rx_low_water =
14464                         DEFAULT_MB_MACRX_LOW_WATER_5705;
14465                 tp->bufmgr_config.mbuf_high_water =
14466                         DEFAULT_MB_HIGH_WATER_5705;
14467                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
14468                         tp->bufmgr_config.mbuf_mac_rx_low_water =
14469                                 DEFAULT_MB_MACRX_LOW_WATER_5906;
14470                         tp->bufmgr_config.mbuf_high_water =
14471                                 DEFAULT_MB_HIGH_WATER_5906;
14472                 }
14473
14474                 tp->bufmgr_config.mbuf_read_dma_low_water_jumbo =
14475                         DEFAULT_MB_RDMA_LOW_WATER_JUMBO_5780;
14476                 tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo =
14477                         DEFAULT_MB_MACRX_LOW_WATER_JUMBO_5780;
14478                 tp->bufmgr_config.mbuf_high_water_jumbo =
14479                         DEFAULT_MB_HIGH_WATER_JUMBO_5780;
14480         } else {
14481                 tp->bufmgr_config.mbuf_read_dma_low_water =
14482                         DEFAULT_MB_RDMA_LOW_WATER;
14483                 tp->bufmgr_config.mbuf_mac_rx_low_water =
14484                         DEFAULT_MB_MACRX_LOW_WATER;
14485                 tp->bufmgr_config.mbuf_high_water =
14486                         DEFAULT_MB_HIGH_WATER;
14487
14488                 tp->bufmgr_config.mbuf_read_dma_low_water_jumbo =
14489                         DEFAULT_MB_RDMA_LOW_WATER_JUMBO;
14490                 tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo =
14491                         DEFAULT_MB_MACRX_LOW_WATER_JUMBO;
14492                 tp->bufmgr_config.mbuf_high_water_jumbo =
14493                         DEFAULT_MB_HIGH_WATER_JUMBO;
14494         }
14495
14496         tp->bufmgr_config.dma_low_water = DEFAULT_DMA_LOW_WATER;
14497         tp->bufmgr_config.dma_high_water = DEFAULT_DMA_HIGH_WATER;
14498 }
14499
14500 static char * __devinit tg3_phy_string(struct tg3 *tp)
14501 {
14502         switch (tp->phy_id & TG3_PHY_ID_MASK) {
14503         case TG3_PHY_ID_BCM5400:        return "5400";
14504         case TG3_PHY_ID_BCM5401:        return "5401";
14505         case TG3_PHY_ID_BCM5411:        return "5411";
14506         case TG3_PHY_ID_BCM5701:        return "5701";
14507         case TG3_PHY_ID_BCM5703:        return "5703";
14508         case TG3_PHY_ID_BCM5704:        return "5704";
14509         case TG3_PHY_ID_BCM5705:        return "5705";
14510         case TG3_PHY_ID_BCM5750:        return "5750";
14511         case TG3_PHY_ID_BCM5752:        return "5752";
14512         case TG3_PHY_ID_BCM5714:        return "5714";
14513         case TG3_PHY_ID_BCM5780:        return "5780";
14514         case TG3_PHY_ID_BCM5755:        return "5755";
14515         case TG3_PHY_ID_BCM5787:        return "5787";
14516         case TG3_PHY_ID_BCM5784:        return "5784";
14517         case TG3_PHY_ID_BCM5756:        return "5722/5756";
14518         case TG3_PHY_ID_BCM5906:        return "5906";
14519         case TG3_PHY_ID_BCM5761:        return "5761";
14520         case TG3_PHY_ID_BCM5718C:       return "5718C";
14521         case TG3_PHY_ID_BCM5718S:       return "5718S";
14522         case TG3_PHY_ID_BCM57765:       return "57765";
14523         case TG3_PHY_ID_BCM5719C:       return "5719C";
14524         case TG3_PHY_ID_BCM8002:        return "8002/serdes";
14525         case 0:                 return "serdes";
14526         default:                return "unknown";
14527         }
14528 }
14529
14530 static char * __devinit tg3_bus_string(struct tg3 *tp, char *str)
14531 {
14532         if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
14533                 strcpy(str, "PCI Express");
14534                 return str;
14535         } else if (tp->tg3_flags & TG3_FLAG_PCIX_MODE) {
14536                 u32 clock_ctrl = tr32(TG3PCI_CLOCK_CTRL) & 0x1f;
14537
14538                 strcpy(str, "PCIX:");
14539
14540                 if ((clock_ctrl == 7) ||
14541                     ((tr32(GRC_MISC_CFG) & GRC_MISC_CFG_BOARD_ID_MASK) ==
14542                      GRC_MISC_CFG_BOARD_ID_5704CIOBE))
14543                         strcat(str, "133MHz");
14544                 else if (clock_ctrl == 0)
14545                         strcat(str, "33MHz");
14546                 else if (clock_ctrl == 2)
14547                         strcat(str, "50MHz");
14548                 else if (clock_ctrl == 4)
14549                         strcat(str, "66MHz");
14550                 else if (clock_ctrl == 6)
14551                         strcat(str, "100MHz");
14552         } else {
14553                 strcpy(str, "PCI:");
14554                 if (tp->tg3_flags & TG3_FLAG_PCI_HIGH_SPEED)
14555                         strcat(str, "66MHz");
14556                 else
14557                         strcat(str, "33MHz");
14558         }
14559         if (tp->tg3_flags & TG3_FLAG_PCI_32BIT)
14560                 strcat(str, ":32-bit");
14561         else
14562                 strcat(str, ":64-bit");
14563         return str;
14564 }
14565
14566 static struct pci_dev * __devinit tg3_find_peer(struct tg3 *tp)
14567 {
14568         struct pci_dev *peer;
14569         unsigned int func, devnr = tp->pdev->devfn & ~7;
14570
14571         for (func = 0; func < 8; func++) {
14572                 peer = pci_get_slot(tp->pdev->bus, devnr | func);
14573                 if (peer && peer != tp->pdev)
14574                         break;
14575                 pci_dev_put(peer);
14576         }
14577         /* 5704 can be configured in single-port mode, set peer to
14578          * tp->pdev in that case.
14579          */
14580         if (!peer) {
14581                 peer = tp->pdev;
14582                 return peer;
14583         }
14584
14585         /*
14586          * We don't need to keep the refcount elevated; there's no way
14587          * to remove one half of this device without removing the other
14588          */
14589         pci_dev_put(peer);
14590
14591         return peer;
14592 }
14593
14594 static void __devinit tg3_init_coal(struct tg3 *tp)
14595 {
14596         struct ethtool_coalesce *ec = &tp->coal;
14597
14598         memset(ec, 0, sizeof(*ec));
14599         ec->cmd = ETHTOOL_GCOALESCE;
14600         ec->rx_coalesce_usecs = LOW_RXCOL_TICKS;
14601         ec->tx_coalesce_usecs = LOW_TXCOL_TICKS;
14602         ec->rx_max_coalesced_frames = LOW_RXMAX_FRAMES;
14603         ec->tx_max_coalesced_frames = LOW_TXMAX_FRAMES;
14604         ec->rx_coalesce_usecs_irq = DEFAULT_RXCOAL_TICK_INT;
14605         ec->tx_coalesce_usecs_irq = DEFAULT_TXCOAL_TICK_INT;
14606         ec->rx_max_coalesced_frames_irq = DEFAULT_RXCOAL_MAXF_INT;
14607         ec->tx_max_coalesced_frames_irq = DEFAULT_TXCOAL_MAXF_INT;
14608         ec->stats_block_coalesce_usecs = DEFAULT_STAT_COAL_TICKS;
14609
14610         if (tp->coalesce_mode & (HOSTCC_MODE_CLRTICK_RXBD |
14611                                  HOSTCC_MODE_CLRTICK_TXBD)) {
14612                 ec->rx_coalesce_usecs = LOW_RXCOL_TICKS_CLRTCKS;
14613                 ec->rx_coalesce_usecs_irq = DEFAULT_RXCOAL_TICK_INT_CLRTCKS;
14614                 ec->tx_coalesce_usecs = LOW_TXCOL_TICKS_CLRTCKS;
14615                 ec->tx_coalesce_usecs_irq = DEFAULT_TXCOAL_TICK_INT_CLRTCKS;
14616         }
14617
14618         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
14619                 ec->rx_coalesce_usecs_irq = 0;
14620                 ec->tx_coalesce_usecs_irq = 0;
14621                 ec->stats_block_coalesce_usecs = 0;
14622         }
14623 }
14624
14625 static const struct net_device_ops tg3_netdev_ops = {
14626         .ndo_open               = tg3_open,
14627         .ndo_stop               = tg3_close,
14628         .ndo_start_xmit         = tg3_start_xmit,
14629         .ndo_get_stats64        = tg3_get_stats64,
14630         .ndo_validate_addr      = eth_validate_addr,
14631         .ndo_set_multicast_list = tg3_set_rx_mode,
14632         .ndo_set_mac_address    = tg3_set_mac_addr,
14633         .ndo_do_ioctl           = tg3_ioctl,
14634         .ndo_tx_timeout         = tg3_tx_timeout,
14635         .ndo_change_mtu         = tg3_change_mtu,
14636 #ifdef CONFIG_NET_POLL_CONTROLLER
14637         .ndo_poll_controller    = tg3_poll_controller,
14638 #endif
14639 };
14640
14641 static const struct net_device_ops tg3_netdev_ops_dma_bug = {
14642         .ndo_open               = tg3_open,
14643         .ndo_stop               = tg3_close,
14644         .ndo_start_xmit         = tg3_start_xmit_dma_bug,
14645         .ndo_get_stats64        = tg3_get_stats64,
14646         .ndo_validate_addr      = eth_validate_addr,
14647         .ndo_set_multicast_list = tg3_set_rx_mode,
14648         .ndo_set_mac_address    = tg3_set_mac_addr,
14649         .ndo_do_ioctl           = tg3_ioctl,
14650         .ndo_tx_timeout         = tg3_tx_timeout,
14651         .ndo_change_mtu         = tg3_change_mtu,
14652 #ifdef CONFIG_NET_POLL_CONTROLLER
14653         .ndo_poll_controller    = tg3_poll_controller,
14654 #endif
14655 };
14656
14657 static int __devinit tg3_init_one(struct pci_dev *pdev,
14658                                   const struct pci_device_id *ent)
14659 {
14660         struct net_device *dev;
14661         struct tg3 *tp;
14662         int i, err, pm_cap;
14663         u32 sndmbx, rcvmbx, intmbx;
14664         char str[40];
14665         u64 dma_mask, persist_dma_mask;
14666
14667         printk_once(KERN_INFO "%s\n", version);
14668
14669         err = pci_enable_device(pdev);
14670         if (err) {
14671                 dev_err(&pdev->dev, "Cannot enable PCI device, aborting\n");
14672                 return err;
14673         }
14674
14675         err = pci_request_regions(pdev, DRV_MODULE_NAME);
14676         if (err) {
14677                 dev_err(&pdev->dev, "Cannot obtain PCI resources, aborting\n");
14678                 goto err_out_disable_pdev;
14679         }
14680
14681         pci_set_master(pdev);
14682
14683         /* Find power-management capability. */
14684         pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM);
14685         if (pm_cap == 0) {
14686                 dev_err(&pdev->dev,
14687                         "Cannot find Power Management capability, aborting\n");
14688                 err = -EIO;
14689                 goto err_out_free_res;
14690         }
14691
14692         dev = alloc_etherdev_mq(sizeof(*tp), TG3_IRQ_MAX_VECS);
14693         if (!dev) {
14694                 dev_err(&pdev->dev, "Etherdev alloc failed, aborting\n");
14695                 err = -ENOMEM;
14696                 goto err_out_free_res;
14697         }
14698
14699         SET_NETDEV_DEV(dev, &pdev->dev);
14700
14701         dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
14702
14703         tp = netdev_priv(dev);
14704         tp->pdev = pdev;
14705         tp->dev = dev;
14706         tp->pm_cap = pm_cap;
14707         tp->rx_mode = TG3_DEF_RX_MODE;
14708         tp->tx_mode = TG3_DEF_TX_MODE;
14709
14710         if (tg3_debug > 0)
14711                 tp->msg_enable = tg3_debug;
14712         else
14713                 tp->msg_enable = TG3_DEF_MSG_ENABLE;
14714
14715         /* The word/byte swap controls here control register access byte
14716          * swapping.  DMA data byte swapping is controlled in the GRC_MODE
14717          * setting below.
14718          */
14719         tp->misc_host_ctrl =
14720                 MISC_HOST_CTRL_MASK_PCI_INT |
14721                 MISC_HOST_CTRL_WORD_SWAP |
14722                 MISC_HOST_CTRL_INDIR_ACCESS |
14723                 MISC_HOST_CTRL_PCISTATE_RW;
14724
14725         /* The NONFRM (non-frame) byte/word swap controls take effect
14726          * on descriptor entries, anything which isn't packet data.
14727          *
14728          * The StrongARM chips on the board (one for tx, one for rx)
14729          * are running in big-endian mode.
14730          */
14731         tp->grc_mode = (GRC_MODE_WSWAP_DATA | GRC_MODE_BSWAP_DATA |
14732                         GRC_MODE_WSWAP_NONFRM_DATA);
14733 #ifdef __BIG_ENDIAN
14734         tp->grc_mode |= GRC_MODE_BSWAP_NONFRM_DATA;
14735 #endif
14736         spin_lock_init(&tp->lock);
14737         spin_lock_init(&tp->indirect_lock);
14738         INIT_WORK(&tp->reset_task, tg3_reset_task);
14739
14740         tp->regs = pci_ioremap_bar(pdev, BAR_0);
14741         if (!tp->regs) {
14742                 dev_err(&pdev->dev, "Cannot map device registers, aborting\n");
14743                 err = -ENOMEM;
14744                 goto err_out_free_dev;
14745         }
14746
14747         tp->rx_pending = TG3_DEF_RX_RING_PENDING;
14748         tp->rx_jumbo_pending = TG3_DEF_RX_JUMBO_RING_PENDING;
14749
14750         dev->ethtool_ops = &tg3_ethtool_ops;
14751         dev->watchdog_timeo = TG3_TX_TIMEOUT;
14752         dev->irq = pdev->irq;
14753
14754         err = tg3_get_invariants(tp);
14755         if (err) {
14756                 dev_err(&pdev->dev,
14757                         "Problem fetching invariants of chip, aborting\n");
14758                 goto err_out_iounmap;
14759         }
14760
14761         if ((tp->tg3_flags3 & TG3_FLG3_5755_PLUS) &&
14762             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5717 &&
14763             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5719)
14764                 dev->netdev_ops = &tg3_netdev_ops;
14765         else
14766                 dev->netdev_ops = &tg3_netdev_ops_dma_bug;
14767
14768
14769         /* The EPB bridge inside 5714, 5715, and 5780 and any
14770          * device behind the EPB cannot support DMA addresses > 40-bit.
14771          * On 64-bit systems with IOMMU, use 40-bit dma_mask.
14772          * On 64-bit systems without IOMMU, use 64-bit dma_mask and
14773          * do DMA address check in tg3_start_xmit().
14774          */
14775         if (tp->tg3_flags2 & TG3_FLG2_IS_5788)
14776                 persist_dma_mask = dma_mask = DMA_BIT_MASK(32);
14777         else if (tp->tg3_flags & TG3_FLAG_40BIT_DMA_BUG) {
14778                 persist_dma_mask = dma_mask = DMA_BIT_MASK(40);
14779 #ifdef CONFIG_HIGHMEM
14780                 dma_mask = DMA_BIT_MASK(64);
14781 #endif
14782         } else
14783                 persist_dma_mask = dma_mask = DMA_BIT_MASK(64);
14784
14785         /* Configure DMA attributes. */
14786         if (dma_mask > DMA_BIT_MASK(32)) {
14787                 err = pci_set_dma_mask(pdev, dma_mask);
14788                 if (!err) {
14789                         dev->features |= NETIF_F_HIGHDMA;
14790                         err = pci_set_consistent_dma_mask(pdev,
14791                                                           persist_dma_mask);
14792                         if (err < 0) {
14793                                 dev_err(&pdev->dev, "Unable to obtain 64 bit "
14794                                         "DMA for consistent allocations\n");
14795                                 goto err_out_iounmap;
14796                         }
14797                 }
14798         }
14799         if (err || dma_mask == DMA_BIT_MASK(32)) {
14800                 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
14801                 if (err) {
14802                         dev_err(&pdev->dev,
14803                                 "No usable DMA configuration, aborting\n");
14804                         goto err_out_iounmap;
14805                 }
14806         }
14807
14808         tg3_init_bufmgr_config(tp);
14809
14810         /* Selectively allow TSO based on operating conditions */
14811         if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO) ||
14812             (tp->fw_needed && !(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)))
14813                 tp->tg3_flags2 |= TG3_FLG2_TSO_CAPABLE;
14814         else {
14815                 tp->tg3_flags2 &= ~(TG3_FLG2_TSO_CAPABLE | TG3_FLG2_TSO_BUG);
14816                 tp->fw_needed = NULL;
14817         }
14818
14819         if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0)
14820                 tp->fw_needed = FIRMWARE_TG3;
14821
14822         /* TSO is on by default on chips that support hardware TSO.
14823          * Firmware TSO on older chips gives lower performance, so it
14824          * is off by default, but can be enabled using ethtool.
14825          */
14826         if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO) &&
14827             (dev->features & NETIF_F_IP_CSUM)) {
14828                 dev->features |= NETIF_F_TSO;
14829                 vlan_features_add(dev, NETIF_F_TSO);
14830         }
14831         if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_2) ||
14832             (tp->tg3_flags2 & TG3_FLG2_HW_TSO_3)) {
14833                 if (dev->features & NETIF_F_IPV6_CSUM) {
14834                         dev->features |= NETIF_F_TSO6;
14835                         vlan_features_add(dev, NETIF_F_TSO6);
14836                 }
14837                 if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_3) ||
14838                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
14839                     (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
14840                      GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) ||
14841                         GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
14842                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780) {
14843                         dev->features |= NETIF_F_TSO_ECN;
14844                         vlan_features_add(dev, NETIF_F_TSO_ECN);
14845                 }
14846         }
14847
14848         if (tp->pci_chip_rev_id == CHIPREV_ID_5705_A1 &&
14849             !(tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) &&
14850             !(tr32(TG3PCI_PCISTATE) & PCISTATE_BUS_SPEED_HIGH)) {
14851                 tp->tg3_flags2 |= TG3_FLG2_MAX_RXPEND_64;
14852                 tp->rx_pending = 63;
14853         }
14854
14855         err = tg3_get_device_address(tp);
14856         if (err) {
14857                 dev_err(&pdev->dev,
14858                         "Could not obtain valid ethernet address, aborting\n");
14859                 goto err_out_iounmap;
14860         }
14861
14862         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
14863                 tp->aperegs = pci_ioremap_bar(pdev, BAR_2);
14864                 if (!tp->aperegs) {
14865                         dev_err(&pdev->dev,
14866                                 "Cannot map APE registers, aborting\n");
14867                         err = -ENOMEM;
14868                         goto err_out_iounmap;
14869                 }
14870
14871                 tg3_ape_lock_init(tp);
14872
14873                 if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF)
14874                         tg3_read_dash_ver(tp);
14875         }
14876
14877         /*
14878          * Reset chip in case UNDI or EFI driver did not shutdown
14879          * DMA self test will enable WDMAC and we'll see (spurious)
14880          * pending DMA on the PCI bus at that point.
14881          */
14882         if ((tr32(HOSTCC_MODE) & HOSTCC_MODE_ENABLE) ||
14883             (tr32(WDMAC_MODE) & WDMAC_MODE_ENABLE)) {
14884                 tw32(MEMARB_MODE, MEMARB_MODE_ENABLE);
14885                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
14886         }
14887
14888         err = tg3_test_dma(tp);
14889         if (err) {
14890                 dev_err(&pdev->dev, "DMA engine test failed, aborting\n");
14891                 goto err_out_apeunmap;
14892         }
14893
14894         intmbx = MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW;
14895         rcvmbx = MAILBOX_RCVRET_CON_IDX_0 + TG3_64BIT_REG_LOW;
14896         sndmbx = MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW;
14897         for (i = 0; i < tp->irq_max; i++) {
14898                 struct tg3_napi *tnapi = &tp->napi[i];
14899
14900                 tnapi->tp = tp;
14901                 tnapi->tx_pending = TG3_DEF_TX_RING_PENDING;
14902
14903                 tnapi->int_mbox = intmbx;
14904                 if (i < 4)
14905                         intmbx += 0x8;
14906                 else
14907                         intmbx += 0x4;
14908
14909                 tnapi->consmbox = rcvmbx;
14910                 tnapi->prodmbox = sndmbx;
14911
14912                 if (i)
14913                         tnapi->coal_now = HOSTCC_MODE_COAL_VEC1_NOW << (i - 1);
14914                 else
14915                         tnapi->coal_now = HOSTCC_MODE_NOW;
14916
14917                 if (!(tp->tg3_flags & TG3_FLAG_SUPPORT_MSIX))
14918                         break;
14919
14920                 /*
14921                  * If we support MSIX, we'll be using RSS.  If we're using
14922                  * RSS, the first vector only handles link interrupts and the
14923                  * remaining vectors handle rx and tx interrupts.  Reuse the
14924                  * mailbox values for the next iteration.  The values we setup
14925                  * above are still useful for the single vectored mode.
14926                  */
14927                 if (!i)
14928                         continue;
14929
14930                 rcvmbx += 0x8;
14931
14932                 if (sndmbx & 0x4)
14933                         sndmbx -= 0x4;
14934                 else
14935                         sndmbx += 0xc;
14936         }
14937
14938         tg3_init_coal(tp);
14939
14940         pci_set_drvdata(pdev, dev);
14941
14942         err = register_netdev(dev);
14943         if (err) {
14944                 dev_err(&pdev->dev, "Cannot register net device, aborting\n");
14945                 goto err_out_apeunmap;
14946         }
14947
14948         netdev_info(dev, "Tigon3 [partno(%s) rev %04x] (%s) MAC address %pM\n",
14949                     tp->board_part_number,
14950                     tp->pci_chip_rev_id,
14951                     tg3_bus_string(tp, str),
14952                     dev->dev_addr);
14953
14954         if (tp->phy_flags & TG3_PHYFLG_IS_CONNECTED) {
14955                 struct phy_device *phydev;
14956                 phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
14957                 netdev_info(dev,
14958                             "attached PHY driver [%s] (mii_bus:phy_addr=%s)\n",
14959                             phydev->drv->name, dev_name(&phydev->dev));
14960         } else {
14961                 char *ethtype;
14962
14963                 if (tp->phy_flags & TG3_PHYFLG_10_100_ONLY)
14964                         ethtype = "10/100Base-TX";
14965                 else if (tp->phy_flags & TG3_PHYFLG_ANY_SERDES)
14966                         ethtype = "1000Base-SX";
14967                 else
14968                         ethtype = "10/100/1000Base-T";
14969
14970                 netdev_info(dev, "attached PHY is %s (%s Ethernet) "
14971                             "(WireSpeed[%d])\n", tg3_phy_string(tp), ethtype,
14972                           (tp->phy_flags & TG3_PHYFLG_NO_ETH_WIRE_SPEED) == 0);
14973         }
14974
14975         netdev_info(dev, "RXcsums[%d] LinkChgREG[%d] MIirq[%d] ASF[%d] TSOcap[%d]\n",
14976                     (tp->tg3_flags & TG3_FLAG_RX_CHECKSUMS) != 0,
14977                     (tp->tg3_flags & TG3_FLAG_USE_LINKCHG_REG) != 0,
14978                     (tp->phy_flags & TG3_PHYFLG_USE_MI_INTERRUPT) != 0,
14979                     (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) != 0,
14980                     (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) != 0);
14981         netdev_info(dev, "dma_rwctrl[%08x] dma_mask[%d-bit]\n",
14982                     tp->dma_rwctrl,
14983                     pdev->dma_mask == DMA_BIT_MASK(32) ? 32 :
14984                     ((u64)pdev->dma_mask) == DMA_BIT_MASK(40) ? 40 : 64);
14985
14986         return 0;
14987
14988 err_out_apeunmap:
14989         if (tp->aperegs) {
14990                 iounmap(tp->aperegs);
14991                 tp->aperegs = NULL;
14992         }
14993
14994 err_out_iounmap:
14995         if (tp->regs) {
14996                 iounmap(tp->regs);
14997                 tp->regs = NULL;
14998         }
14999
15000 err_out_free_dev:
15001         free_netdev(dev);
15002
15003 err_out_free_res:
15004         pci_release_regions(pdev);
15005
15006 err_out_disable_pdev:
15007         pci_disable_device(pdev);
15008         pci_set_drvdata(pdev, NULL);
15009         return err;
15010 }
15011
15012 static void __devexit tg3_remove_one(struct pci_dev *pdev)
15013 {
15014         struct net_device *dev = pci_get_drvdata(pdev);
15015
15016         if (dev) {
15017                 struct tg3 *tp = netdev_priv(dev);
15018
15019                 if (tp->fw)
15020                         release_firmware(tp->fw);
15021
15022                 cancel_work_sync(&tp->reset_task);
15023
15024                 if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
15025                         tg3_phy_fini(tp);
15026                         tg3_mdio_fini(tp);
15027                 }
15028
15029                 unregister_netdev(dev);
15030                 if (tp->aperegs) {
15031                         iounmap(tp->aperegs);
15032                         tp->aperegs = NULL;
15033                 }
15034                 if (tp->regs) {
15035                         iounmap(tp->regs);
15036                         tp->regs = NULL;
15037                 }
15038                 free_netdev(dev);
15039                 pci_release_regions(pdev);
15040                 pci_disable_device(pdev);
15041                 pci_set_drvdata(pdev, NULL);
15042         }
15043 }
15044
15045 #ifdef CONFIG_PM_SLEEP
15046 static int tg3_suspend(struct device *device)
15047 {
15048         struct pci_dev *pdev = to_pci_dev(device);
15049         struct net_device *dev = pci_get_drvdata(pdev);
15050         struct tg3 *tp = netdev_priv(dev);
15051         int err;
15052
15053         if (!netif_running(dev))
15054                 return 0;
15055
15056         flush_work_sync(&tp->reset_task);
15057         tg3_phy_stop(tp);
15058         tg3_netif_stop(tp);
15059
15060         del_timer_sync(&tp->timer);
15061
15062         tg3_full_lock(tp, 1);
15063         tg3_disable_ints(tp);
15064         tg3_full_unlock(tp);
15065
15066         netif_device_detach(dev);
15067
15068         tg3_full_lock(tp, 0);
15069         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
15070         tp->tg3_flags &= ~TG3_FLAG_INIT_COMPLETE;
15071         tg3_full_unlock(tp);
15072
15073         err = tg3_power_down_prepare(tp);
15074         if (err) {
15075                 int err2;
15076
15077                 tg3_full_lock(tp, 0);
15078
15079                 tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
15080                 err2 = tg3_restart_hw(tp, 1);
15081                 if (err2)
15082                         goto out;
15083
15084                 tp->timer.expires = jiffies + tp->timer_offset;
15085                 add_timer(&tp->timer);
15086
15087                 netif_device_attach(dev);
15088                 tg3_netif_start(tp);
15089
15090 out:
15091                 tg3_full_unlock(tp);
15092
15093                 if (!err2)
15094                         tg3_phy_start(tp);
15095         }
15096
15097         return err;
15098 }
15099
15100 static int tg3_resume(struct device *device)
15101 {
15102         struct pci_dev *pdev = to_pci_dev(device);
15103         struct net_device *dev = pci_get_drvdata(pdev);
15104         struct tg3 *tp = netdev_priv(dev);
15105         int err;
15106
15107         if (!netif_running(dev))
15108                 return 0;
15109
15110         netif_device_attach(dev);
15111
15112         tg3_full_lock(tp, 0);
15113
15114         tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
15115         err = tg3_restart_hw(tp, 1);
15116         if (err)
15117                 goto out;
15118
15119         tp->timer.expires = jiffies + tp->timer_offset;
15120         add_timer(&tp->timer);
15121
15122         tg3_netif_start(tp);
15123
15124 out:
15125         tg3_full_unlock(tp);
15126
15127         if (!err)
15128                 tg3_phy_start(tp);
15129
15130         return err;
15131 }
15132
15133 static SIMPLE_DEV_PM_OPS(tg3_pm_ops, tg3_suspend, tg3_resume);
15134 #define TG3_PM_OPS (&tg3_pm_ops)
15135
15136 #else
15137
15138 #define TG3_PM_OPS NULL
15139
15140 #endif /* CONFIG_PM_SLEEP */
15141
15142 static struct pci_driver tg3_driver = {
15143         .name           = DRV_MODULE_NAME,
15144         .id_table       = tg3_pci_tbl,
15145         .probe          = tg3_init_one,
15146         .remove         = __devexit_p(tg3_remove_one),
15147         .driver.pm      = TG3_PM_OPS,
15148 };
15149
15150 static int __init tg3_init(void)
15151 {
15152         return pci_register_driver(&tg3_driver);
15153 }
15154
15155 static void __exit tg3_cleanup(void)
15156 {
15157         pci_unregister_driver(&tg3_driver);
15158 }
15159
15160 module_init(tg3_init);
15161 module_exit(tg3_cleanup);