drivers/net/tg3.c

   1 /*
   2  * tg3.c: Broadcom Tigon3 ethernet driver.
   3  *
   4  * Copyright (C) 2001, 2002, 2003, 2004 David S. Miller (davem@redhat.com)
   5  * Copyright (C) 2001, 2002, 2003 Jeff Garzik (jgarzik@pobox.com)
   6  * Copyright (C) 2004 Sun Microsystems Inc.
   7  * Copyright (C) 2005-2010 Broadcom Corporation.
   8  *
   9  * Firmware is:
  10  *      Derived from proprietary unpublished source code,
  11  *      Copyright (C) 2000-2003 Broadcom Corporation.
  12  *
  13  *      Permission is hereby granted for the distribution of this firmware
  14  *      data in hexadecimal or equivalent format, provided this copyright
  15  *      notice is accompanying it.
  16  */
  17
  18
  19 #include <linux/module.h>
  20 #include <linux/moduleparam.h>
  21 #include <linux/kernel.h>
  22 #include <linux/types.h>
  23 #include <linux/compiler.h>
  24 #include <linux/slab.h>
  25 #include <linux/delay.h>
  26 #include <linux/in.h>
  27 #include <linux/init.h>
  28 #include <linux/ioport.h>
  29 #include <linux/pci.h>
  30 #include <linux/netdevice.h>
  31 #include <linux/etherdevice.h>
  32 #include <linux/skbuff.h>
  33 #include <linux/ethtool.h>
  34 #include <linux/mii.h>
  35 #include <linux/phy.h>
  36 #include <linux/brcmphy.h>
  37 #include <linux/if_vlan.h>
  38 #include <linux/ip.h>
  39 #include <linux/tcp.h>
  40 #include <linux/workqueue.h>
  41 #include <linux/prefetch.h>
  42 #include <linux/dma-mapping.h>
  43 #include <linux/firmware.h>
  44
  45 #include <net/checksum.h>
  46 #include <net/ip.h>
  47
  48 #include <asm/system.h>
  49 #include <asm/io.h>
  50 #include <asm/byteorder.h>
  51 #include <asm/uaccess.h>
  52
  53 #ifdef CONFIG_SPARC
  54 #include <asm/idprom.h>
  55 #include <asm/prom.h>
  56 #endif
  57
  58 #define BAR_0   0
  59 #define BAR_2   2
  60
  61 #if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
  62 #define TG3_VLAN_TAG_USED 1
  63 #else
  64 #define TG3_VLAN_TAG_USED 0
  65 #endif
  66
  67 #include "tg3.h"
  68
  69 #define DRV_MODULE_NAME         "tg3"
  70 #define DRV_MODULE_VERSION      "3.110"
  71 #define DRV_MODULE_RELDATE      "April 9, 2010"
  72
  73 #define TG3_DEF_MAC_MODE        0
  74 #define TG3_DEF_RX_MODE         0
  75 #define TG3_DEF_TX_MODE         0
  76 #define TG3_DEF_MSG_ENABLE        \
  77         (NETIF_MSG_DRV          | \
  78          NETIF_MSG_PROBE        | \
  79          NETIF_MSG_LINK         | \
  80          NETIF_MSG_TIMER        | \
  81          NETIF_MSG_IFDOWN       | \
  82          NETIF_MSG_IFUP         | \
  83          NETIF_MSG_RX_ERR       | \
  84          NETIF_MSG_TX_ERR)
  85
  86 /* length of time before we decide the hardware is borked,
  87  * and dev->tx_timeout() should be called to fix the problem
  88  */
  89 #define TG3_TX_TIMEOUT                  (5 * HZ)
  90
  91 /* hardware minimum and maximum for a single frame's data payload */
  92 #define TG3_MIN_MTU                     60
  93 #define TG3_MAX_MTU(tp) \
  94         ((tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) ? 9000 : 1500)
  95
  96 /* These numbers seem to be hard coded in the NIC firmware somehow.
  97  * You can't change the ring sizes, but you can change where you place
  98  * them in the NIC onboard memory.
  99  */
 100 #define TG3_RX_RING_SIZE                512
 101 #define TG3_DEF_RX_RING_PENDING         200
 102 #define TG3_RX_JUMBO_RING_SIZE          256
 103 #define TG3_DEF_RX_JUMBO_RING_PENDING   100
 104 #define TG3_RSS_INDIR_TBL_SIZE          128
 105
 106 /* Do not place this n-ring entries value into the tp struct itself,
 107  * we really want to expose these constants to GCC so that modulo et
 108  * al.  operations are done with shifts and masks instead of with
 109  * hw multiply/modulo instructions.  Another solution would be to
 110  * replace things like '% foo' with '& (foo - 1)'.
 111  */
 112 #define TG3_RX_RCB_RING_SIZE(tp)        \
 113         (((tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) && \
 114           !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) ? 1024 : 512)
 115
 116 #define TG3_TX_RING_SIZE                512
 117 #define TG3_DEF_TX_RING_PENDING         (TG3_TX_RING_SIZE - 1)
 118
 119 #define TG3_RX_RING_BYTES       (sizeof(struct tg3_rx_buffer_desc) * \
 120                                  TG3_RX_RING_SIZE)
 121 #define TG3_RX_JUMBO_RING_BYTES (sizeof(struct tg3_ext_rx_buffer_desc) * \
 122                                  TG3_RX_JUMBO_RING_SIZE)
 123 #define TG3_RX_RCB_RING_BYTES(tp) (sizeof(struct tg3_rx_buffer_desc) * \
 124                                  TG3_RX_RCB_RING_SIZE(tp))
 125 #define TG3_TX_RING_BYTES       (sizeof(struct tg3_tx_buffer_desc) * \
 126                                  TG3_TX_RING_SIZE)
 127 #define NEXT_TX(N)              (((N) + 1) & (TG3_TX_RING_SIZE - 1))
 128
 129 #define TG3_RX_DMA_ALIGN                16
 130 #define TG3_RX_HEADROOM                 ALIGN(VLAN_HLEN, TG3_RX_DMA_ALIGN)
 131
 132 #define TG3_DMA_BYTE_ENAB               64
 133
 134 #define TG3_RX_STD_DMA_SZ               1536
 135 #define TG3_RX_JMB_DMA_SZ               9046
 136
 137 #define TG3_RX_DMA_TO_MAP_SZ(x)         ((x) + TG3_DMA_BYTE_ENAB)
 138
 139 #define TG3_RX_STD_MAP_SZ               TG3_RX_DMA_TO_MAP_SZ(TG3_RX_STD_DMA_SZ)
 140 #define TG3_RX_JMB_MAP_SZ               TG3_RX_DMA_TO_MAP_SZ(TG3_RX_JMB_DMA_SZ)
 141
 142 #define TG3_RX_STD_BUFF_RING_SIZE \
 143         (sizeof(struct ring_info) * TG3_RX_RING_SIZE)
 144
 145 #define TG3_RX_JMB_BUFF_RING_SIZE \
 146         (sizeof(struct ring_info) * TG3_RX_JUMBO_RING_SIZE)
 147
 148 /* Due to a hardware bug, the 5701 can only DMA to memory addresses
 149  * that are at least dword aligned when used in PCIX mode.  The driver
 150  * works around this bug by double copying the packet.  This workaround
 151  * is built into the normal double copy length check for efficiency.
 152  *
 153  * However, the double copy is only necessary on those architectures
 154  * where unaligned memory accesses are inefficient.  For those architectures
 155  * where unaligned memory accesses incur little penalty, we can reintegrate
 156  * the 5701 in the normal rx path.  Doing so saves a device structure
 157  * dereference by hardcoding the double copy threshold in place.
 158  */
 159 #define TG3_RX_COPY_THRESHOLD           256
 160 #if NET_IP_ALIGN == 0 || defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
 161         #define TG3_RX_COPY_THRESH(tp)  TG3_RX_COPY_THRESHOLD
 162 #else
 163         #define TG3_RX_COPY_THRESH(tp)  ((tp)->rx_copy_thresh)
 164 #endif
 165
 166 /* minimum number of free TX descriptors required to wake up TX process */
 167 #define TG3_TX_WAKEUP_THRESH(tnapi)             ((tnapi)->tx_pending / 4)
 168
 169 #define TG3_RAW_IP_ALIGN 2
 170
 171 /* number of ETHTOOL_GSTATS u64's */
 172 #define TG3_NUM_STATS           (sizeof(struct tg3_ethtool_stats)/sizeof(u64))
 173
 174 #define TG3_NUM_TEST            6
 175
 176 #define TG3_FW_UPDATE_TIMEOUT_SEC       5
 177
 178 #define FIRMWARE_TG3            "tigon/tg3.bin"
 179 #define FIRMWARE_TG3TSO         "tigon/tg3_tso.bin"
 180 #define FIRMWARE_TG3TSO5        "tigon/tg3_tso5.bin"
 181
 182 static char version[] __devinitdata =
 183         DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")";
 184
 185 MODULE_AUTHOR("David S. Miller (davem@redhat.com) and Jeff Garzik (jgarzik@pobox.com)");
 186 MODULE_DESCRIPTION("Broadcom Tigon3 ethernet driver");
 187 MODULE_LICENSE("GPL");
 188 MODULE_VERSION(DRV_MODULE_VERSION);
 189 MODULE_FIRMWARE(FIRMWARE_TG3);
 190 MODULE_FIRMWARE(FIRMWARE_TG3TSO);
 191 MODULE_FIRMWARE(FIRMWARE_TG3TSO5);
 192
 193 static int tg3_debug = -1;      /* -1 == use TG3_DEF_MSG_ENABLE as value */
 194 module_param(tg3_debug, int, 0);
 195 MODULE_PARM_DESC(tg3_debug, "Tigon3 bitmapped debugging message enable value");
 196
 197 static DEFINE_PCI_DEVICE_TABLE(tg3_pci_tbl) = {
 198         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5700)},
 199         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5701)},
 200         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702)},
 201         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5703)},
 202         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5704)},
 203         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702FE)},
 204         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705)},
 205         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705_2)},
 206         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705M)},
 207         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705M_2)},
 208         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702X)},
 209         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5703X)},
 210         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5704S)},
 211         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5702A3)},
 212         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5703A3)},
 213         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5782)},
 214         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5788)},
 215         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5789)},
 216         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5901)},
 217         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5901_2)},
 218         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5704S_2)},
 219         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5705F)},
 220         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5720)},
 221         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5721)},
 222         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5722)},
 223         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5750)},
 224         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751)},
 225         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5750M)},
 226         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751M)},
 227         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5751F)},
 228         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5752)},
 229         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5752M)},
 230         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753)},
 231         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753M)},
 232         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5753F)},
 233         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5754)},
 234         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5754M)},
 235         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5755)},
 236         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5755M)},
 237         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5756)},
 238         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5786)},
 239         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5787)},
 240         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5787M)},
 241         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5787F)},
 242         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5714)},
 243         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5714S)},
 244         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5715)},
 245         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5715S)},
 246         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5780)},
 247         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5780S)},
 248         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5781)},
 249         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5906)},
 250         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5906M)},
 251         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5784)},
 252         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5764)},
 253         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5723)},
 254         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5761)},
 255         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_TIGON3_5761E)},
 256         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5761S)},
 257         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5761SE)},
 258         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5785_G)},
 259         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5785_F)},
 260         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57780)},
 261         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57760)},
 262         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57790)},
 263         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57788)},
 264         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5717)},
 265         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5718)},
 266         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5724)},
 267         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57781)},
 268         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57785)},
 269         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57761)},
 270         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57765)},
 271         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57791)},
 272         {PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57795)},
 273         {PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_9DXX)},
 274         {PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_9MXX)},
 275         {PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1000)},
 276         {PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1001)},
 277         {PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1003)},
 278         {PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC9100)},
 279         {PCI_DEVICE(PCI_VENDOR_ID_APPLE, PCI_DEVICE_ID_APPLE_TIGON3)},
 280         {}
 281 };
 282
 283 MODULE_DEVICE_TABLE(pci, tg3_pci_tbl);
 284
 285 static const struct {
 286         const char string[ETH_GSTRING_LEN];
 287 } ethtool_stats_keys[TG3_NUM_STATS] = {
 288         { "rx_octets" },
 289         { "rx_fragments" },
 290         { "rx_ucast_packets" },
 291         { "rx_mcast_packets" },
 292         { "rx_bcast_packets" },
 293         { "rx_fcs_errors" },
 294         { "rx_align_errors" },
 295         { "rx_xon_pause_rcvd" },
 296         { "rx_xoff_pause_rcvd" },
 297         { "rx_mac_ctrl_rcvd" },
 298         { "rx_xoff_entered" },
 299         { "rx_frame_too_long_errors" },
 300         { "rx_jabbers" },
 301         { "rx_undersize_packets" },
 302         { "rx_in_length_errors" },
 303         { "rx_out_length_errors" },
 304         { "rx_64_or_less_octet_packets" },
 305         { "rx_65_to_127_octet_packets" },
 306         { "rx_128_to_255_octet_packets" },
 307         { "rx_256_to_511_octet_packets" },
 308         { "rx_512_to_1023_octet_packets" },
 309         { "rx_1024_to_1522_octet_packets" },
 310         { "rx_1523_to_2047_octet_packets" },
 311         { "rx_2048_to_4095_octet_packets" },
 312         { "rx_4096_to_8191_octet_packets" },
 313         { "rx_8192_to_9022_octet_packets" },
 314
 315         { "tx_octets" },
 316         { "tx_collisions" },
 317
 318         { "tx_xon_sent" },
 319         { "tx_xoff_sent" },
 320         { "tx_flow_control" },
 321         { "tx_mac_errors" },
 322         { "tx_single_collisions" },
 323         { "tx_mult_collisions" },
 324         { "tx_deferred" },
 325         { "tx_excessive_collisions" },
 326         { "tx_late_collisions" },
 327         { "tx_collide_2times" },
 328         { "tx_collide_3times" },
 329         { "tx_collide_4times" },
 330         { "tx_collide_5times" },
 331         { "tx_collide_6times" },
 332         { "tx_collide_7times" },
 333         { "tx_collide_8times" },
 334         { "tx_collide_9times" },
 335         { "tx_collide_10times" },
 336         { "tx_collide_11times" },
 337         { "tx_collide_12times" },
 338         { "tx_collide_13times" },
 339         { "tx_collide_14times" },
 340         { "tx_collide_15times" },
 341         { "tx_ucast_packets" },
 342         { "tx_mcast_packets" },
 343         { "tx_bcast_packets" },
 344         { "tx_carrier_sense_errors" },
 345         { "tx_discards" },
 346         { "tx_errors" },
 347
 348         { "dma_writeq_full" },
 349         { "dma_write_prioq_full" },
 350         { "rxbds_empty" },
 351         { "rx_discards" },
 352         { "rx_errors" },
 353         { "rx_threshold_hit" },
 354
 355         { "dma_readq_full" },
 356         { "dma_read_prioq_full" },
 357         { "tx_comp_queue_full" },
 358
 359         { "ring_set_send_prod_index" },
 360         { "ring_status_update" },
 361         { "nic_irqs" },
 362         { "nic_avoided_irqs" },
 363         { "nic_tx_threshold_hit" }
 364 };
 365
 366 static const struct {
 367         const char string[ETH_GSTRING_LEN];
 368 } ethtool_test_keys[TG3_NUM_TEST] = {
 369         { "nvram test     (online) " },
 370         { "link test      (online) " },
 371         { "register test  (offline)" },
 372         { "memory test    (offline)" },
 373         { "loopback test  (offline)" },
 374         { "interrupt test (offline)" },
 375 };
 376
 377 static void tg3_write32(struct tg3 *tp, u32 off, u32 val)
 378 {
 379         writel(val, tp->regs + off);
 380 }
 381
 382 static u32 tg3_read32(struct tg3 *tp, u32 off)
 383 {
 384         return readl(tp->regs + off);
 385 }
 386
 387 static void tg3_ape_write32(struct tg3 *tp, u32 off, u32 val)
 388 {
 389         writel(val, tp->aperegs + off);
 390 }
 391
 392 static u32 tg3_ape_read32(struct tg3 *tp, u32 off)
 393 {
 394         return readl(tp->aperegs + off);
 395 }
 396
 397 static void tg3_write_indirect_reg32(struct tg3 *tp, u32 off, u32 val)
 398 {
 399         unsigned long flags;
 400
 401         spin_lock_irqsave(&tp->indirect_lock, flags);
 402         pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off);
 403         pci_write_config_dword(tp->pdev, TG3PCI_REG_DATA, val);
 404         spin_unlock_irqrestore(&tp->indirect_lock, flags);
 405 }
 406
 407 static void tg3_write_flush_reg32(struct tg3 *tp, u32 off, u32 val)
 408 {
 409         writel(val, tp->regs + off);
 410         readl(tp->regs + off);
 411 }
 412
 413 static u32 tg3_read_indirect_reg32(struct tg3 *tp, u32 off)
 414 {
 415         unsigned long flags;
 416         u32 val;
 417
 418         spin_lock_irqsave(&tp->indirect_lock, flags);
 419         pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off);
 420         pci_read_config_dword(tp->pdev, TG3PCI_REG_DATA, &val);
 421         spin_unlock_irqrestore(&tp->indirect_lock, flags);
 422         return val;
 423 }
 424
 425 static void tg3_write_indirect_mbox(struct tg3 *tp, u32 off, u32 val)
 426 {
 427         unsigned long flags;
 428
 429         if (off == (MAILBOX_RCVRET_CON_IDX_0 + TG3_64BIT_REG_LOW)) {
 430                 pci_write_config_dword(tp->pdev, TG3PCI_RCV_RET_RING_CON_IDX +
 431                                        TG3_64BIT_REG_LOW, val);
 432                 return;
 433         }
 434         if (off == TG3_RX_STD_PROD_IDX_REG) {
 435                 pci_write_config_dword(tp->pdev, TG3PCI_STD_RING_PROD_IDX +
 436                                        TG3_64BIT_REG_LOW, val);
 437                 return;
 438         }
 439
 440         spin_lock_irqsave(&tp->indirect_lock, flags);
 441         pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off + 0x5600);
 442         pci_write_config_dword(tp->pdev, TG3PCI_REG_DATA, val);
 443         spin_unlock_irqrestore(&tp->indirect_lock, flags);
 444
 445         /* In indirect mode when disabling interrupts, we also need
 446          * to clear the interrupt bit in the GRC local ctrl register.
 447          */
 448         if ((off == (MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW)) &&
 449             (val == 0x1)) {
 450                 pci_write_config_dword(tp->pdev, TG3PCI_MISC_LOCAL_CTRL,
 451                                        tp->grc_local_ctrl|GRC_LCLCTRL_CLEARINT);
 452         }
 453 }
 454
 455 static u32 tg3_read_indirect_mbox(struct tg3 *tp, u32 off)
 456 {
 457         unsigned long flags;
 458         u32 val;
 459
 460         spin_lock_irqsave(&tp->indirect_lock, flags);
 461         pci_write_config_dword(tp->pdev, TG3PCI_REG_BASE_ADDR, off + 0x5600);
 462         pci_read_config_dword(tp->pdev, TG3PCI_REG_DATA, &val);
 463         spin_unlock_irqrestore(&tp->indirect_lock, flags);
 464         return val;
 465 }
 466
 467 /* usec_wait specifies the wait time in usec when writing to certain registers
 468  * where it is unsafe to read back the register without some delay.
 469  * GRC_LOCAL_CTRL is one example if the GPIOs are toggled to switch power.
 470  * TG3PCI_CLOCK_CTRL is another example if the clock frequencies are changed.
 471  */
 472 static void _tw32_flush(struct tg3 *tp, u32 off, u32 val, u32 usec_wait)
 473 {
 474         if ((tp->tg3_flags & TG3_FLAG_PCIX_TARGET_HWBUG) ||
 475             (tp->tg3_flags2 & TG3_FLG2_ICH_WORKAROUND))
 476                 /* Non-posted methods */
 477                 tp->write32(tp, off, val);
 478         else {
 479                 /* Posted method */
 480                 tg3_write32(tp, off, val);
 481                 if (usec_wait)
 482                         udelay(usec_wait);
 483                 tp->read32(tp, off);
 484         }
 485         /* Wait again after the read for the posted method to guarantee that
 486          * the wait time is met.
 487          */
 488         if (usec_wait)
 489                 udelay(usec_wait);
 490 }
 491
 492 static inline void tw32_mailbox_flush(struct tg3 *tp, u32 off, u32 val)
 493 {
 494         tp->write32_mbox(tp, off, val);
 495         if (!(tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER) &&
 496             !(tp->tg3_flags2 & TG3_FLG2_ICH_WORKAROUND))
 497                 tp->read32_mbox(tp, off);
 498 }
 499
 500 static void tg3_write32_tx_mbox(struct tg3 *tp, u32 off, u32 val)
 501 {
 502         void __iomem *mbox = tp->regs + off;
 503         writel(val, mbox);
 504         if (tp->tg3_flags & TG3_FLAG_TXD_MBOX_HWBUG)
 505                 writel(val, mbox);
 506         if (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)
 507                 readl(mbox);
 508 }
 509
 510 static u32 tg3_read32_mbox_5906(struct tg3 *tp, u32 off)
 511 {
 512         return readl(tp->regs + off + GRCMBOX_BASE);
 513 }
 514
 515 static void tg3_write32_mbox_5906(struct tg3 *tp, u32 off, u32 val)
 516 {
 517         writel(val, tp->regs + off + GRCMBOX_BASE);
 518 }
 519
 520 #define tw32_mailbox(reg, val)          tp->write32_mbox(tp, reg, val)
 521 #define tw32_mailbox_f(reg, val)        tw32_mailbox_flush(tp, (reg), (val))
 522 #define tw32_rx_mbox(reg, val)          tp->write32_rx_mbox(tp, reg, val)
 523 #define tw32_tx_mbox(reg, val)          tp->write32_tx_mbox(tp, reg, val)
 524 #define tr32_mailbox(reg)               tp->read32_mbox(tp, reg)
 525
 526 #define tw32(reg, val)                  tp->write32(tp, reg, val)
 527 #define tw32_f(reg, val)                _tw32_flush(tp, (reg), (val), 0)
 528 #define tw32_wait_f(reg, val, us)       _tw32_flush(tp, (reg), (val), (us))
 529 #define tr32(reg)                       tp->read32(tp, reg)
 530
 531 static void tg3_write_mem(struct tg3 *tp, u32 off, u32 val)
 532 {
 533         unsigned long flags;
 534
 535         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) &&
 536             (off >= NIC_SRAM_STATS_BLK) && (off < NIC_SRAM_TX_BUFFER_DESC))
 537                 return;
 538
 539         spin_lock_irqsave(&tp->indirect_lock, flags);
 540         if (tp->tg3_flags & TG3_FLAG_SRAM_USE_CONFIG) {
 541                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, off);
 542                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_DATA, val);
 543
 544                 /* Always leave this as zero. */
 545                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, 0);
 546         } else {
 547                 tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, off);
 548                 tw32_f(TG3PCI_MEM_WIN_DATA, val);
 549
 550                 /* Always leave this as zero. */
 551                 tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, 0);
 552         }
 553         spin_unlock_irqrestore(&tp->indirect_lock, flags);
 554 }
 555
 556 static void tg3_read_mem(struct tg3 *tp, u32 off, u32 *val)
 557 {
 558         unsigned long flags;
 559
 560         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) &&
 561             (off >= NIC_SRAM_STATS_BLK) && (off < NIC_SRAM_TX_BUFFER_DESC)) {
 562                 *val = 0;
 563                 return;
 564         }
 565
 566         spin_lock_irqsave(&tp->indirect_lock, flags);
 567         if (tp->tg3_flags & TG3_FLAG_SRAM_USE_CONFIG) {
 568                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, off);
 569                 pci_read_config_dword(tp->pdev, TG3PCI_MEM_WIN_DATA, val);
 570
 571                 /* Always leave this as zero. */
 572                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, 0);
 573         } else {
 574                 tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, off);
 575                 *val = tr32(TG3PCI_MEM_WIN_DATA);
 576
 577                 /* Always leave this as zero. */
 578                 tw32_f(TG3PCI_MEM_WIN_BASE_ADDR, 0);
 579         }
 580         spin_unlock_irqrestore(&tp->indirect_lock, flags);
 581 }
 582
 583 static void tg3_ape_lock_init(struct tg3 *tp)
 584 {
 585         int i;
 586         u32 regbase;
 587
 588         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761)
 589                 regbase = TG3_APE_LOCK_GRANT;
 590         else
 591                 regbase = TG3_APE_PER_LOCK_GRANT;
 592
 593         /* Make sure the driver hasn't any stale locks. */
 594         for (i = 0; i < 8; i++)
 595                 tg3_ape_write32(tp, regbase + 4 * i, APE_LOCK_GRANT_DRIVER);
 596 }
 597
 598 static int tg3_ape_lock(struct tg3 *tp, int locknum)
 599 {
 600         int i, off;
 601         int ret = 0;
 602         u32 status, req, gnt;
 603
 604         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE))
 605                 return 0;
 606
 607         switch (locknum) {
 608         case TG3_APE_LOCK_GRC:
 609         case TG3_APE_LOCK_MEM:
 610                 break;
 611         default:
 612                 return -EINVAL;
 613         }
 614
 615         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761) {
 616                 req = TG3_APE_LOCK_REQ;
 617                 gnt = TG3_APE_LOCK_GRANT;
 618         } else {
 619                 req = TG3_APE_PER_LOCK_REQ;
 620                 gnt = TG3_APE_PER_LOCK_GRANT;
 621         }
 622
 623         off = 4 * locknum;
 624
 625         tg3_ape_write32(tp, req + off, APE_LOCK_REQ_DRIVER);
 626
 627         /* Wait for up to 1 millisecond to acquire lock. */
 628         for (i = 0; i < 100; i++) {
 629                 status = tg3_ape_read32(tp, gnt + off);
 630                 if (status == APE_LOCK_GRANT_DRIVER)
 631                         break;
 632                 udelay(10);
 633         }
 634
 635         if (status != APE_LOCK_GRANT_DRIVER) {
 636                 /* Revoke the lock request. */
 637                 tg3_ape_write32(tp, gnt + off,
 638                                 APE_LOCK_GRANT_DRIVER);
 639
 640                 ret = -EBUSY;
 641         }
 642
 643         return ret;
 644 }
 645
 646 static void tg3_ape_unlock(struct tg3 *tp, int locknum)
 647 {
 648         u32 gnt;
 649
 650         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE))
 651                 return;
 652
 653         switch (locknum) {
 654         case TG3_APE_LOCK_GRC:
 655         case TG3_APE_LOCK_MEM:
 656                 break;
 657         default:
 658                 return;
 659         }
 660
 661         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761)
 662                 gnt = TG3_APE_LOCK_GRANT;
 663         else
 664                 gnt = TG3_APE_PER_LOCK_GRANT;
 665
 666         tg3_ape_write32(tp, gnt + 4 * locknum, APE_LOCK_GRANT_DRIVER);
 667 }
 668
 669 static void tg3_disable_ints(struct tg3 *tp)
 670 {
 671         int i;
 672
 673         tw32(TG3PCI_MISC_HOST_CTRL,
 674              (tp->misc_host_ctrl | MISC_HOST_CTRL_MASK_PCI_INT));
 675         for (i = 0; i < tp->irq_max; i++)
 676                 tw32_mailbox_f(tp->napi[i].int_mbox, 0x00000001);
 677 }
 678
 679 static void tg3_enable_ints(struct tg3 *tp)
 680 {
 681         int i;
 682
 683         tp->irq_sync = 0;
 684         wmb();
 685
 686         tw32(TG3PCI_MISC_HOST_CTRL,
 687              (tp->misc_host_ctrl & ~MISC_HOST_CTRL_MASK_PCI_INT));
 688
 689         tp->coal_now = tp->coalesce_mode | HOSTCC_MODE_ENABLE;
 690         for (i = 0; i < tp->irq_cnt; i++) {
 691                 struct tg3_napi *tnapi = &tp->napi[i];
 692
 693                 tw32_mailbox_f(tnapi->int_mbox, tnapi->last_tag << 24);
 694                 if (tp->tg3_flags2 & TG3_FLG2_1SHOT_MSI)
 695                         tw32_mailbox_f(tnapi->int_mbox, tnapi->last_tag << 24);
 696
 697                 tp->coal_now |= tnapi->coal_now;
 698         }
 699
 700         /* Force an initial interrupt */
 701         if (!(tp->tg3_flags & TG3_FLAG_TAGGED_STATUS) &&
 702             (tp->napi[0].hw_status->status & SD_STATUS_UPDATED))
 703                 tw32(GRC_LOCAL_CTRL, tp->grc_local_ctrl | GRC_LCLCTRL_SETINT);
 704         else
 705                 tw32(HOSTCC_MODE, tp->coal_now);
 706
 707         tp->coal_now &= ~(tp->napi[0].coal_now | tp->napi[1].coal_now);
 708 }
 709
 710 static inline unsigned int tg3_has_work(struct tg3_napi *tnapi)
 711 {
 712         struct tg3 *tp = tnapi->tp;
 713         struct tg3_hw_status *sblk = tnapi->hw_status;
 714         unsigned int work_exists = 0;
 715
 716         /* check for phy events */
 717         if (!(tp->tg3_flags &
 718               (TG3_FLAG_USE_LINKCHG_REG |
 719                TG3_FLAG_POLL_SERDES))) {
 720                 if (sblk->status & SD_STATUS_LINK_CHG)
 721                         work_exists = 1;
 722         }
 723         /* check for RX/TX work to do */
 724         if (sblk->idx[0].tx_consumer != tnapi->tx_cons ||
 725             *(tnapi->rx_rcb_prod_idx) != tnapi->rx_rcb_ptr)
 726                 work_exists = 1;
 727
 728         return work_exists;
 729 }
 730
 731 /* tg3_int_reenable
 732  *  similar to tg3_enable_ints, but it accurately determines whether there
 733  *  is new work pending and can return without flushing the PIO write
 734  *  which reenables interrupts
 735  */
 736 static void tg3_int_reenable(struct tg3_napi *tnapi)
 737 {
 738         struct tg3 *tp = tnapi->tp;
 739
 740         tw32_mailbox(tnapi->int_mbox, tnapi->last_tag << 24);
 741         mmiowb();
 742
 743         /* When doing tagged status, this work check is unnecessary.
 744          * The last_tag we write above tells the chip which piece of
 745          * work we've completed.
 746          */
 747         if (!(tp->tg3_flags & TG3_FLAG_TAGGED_STATUS) &&
 748             tg3_has_work(tnapi))
 749                 tw32(HOSTCC_MODE, tp->coalesce_mode |
 750                      HOSTCC_MODE_ENABLE | tnapi->coal_now);
 751 }
 752
 753 static void tg3_napi_disable(struct tg3 *tp)
 754 {
 755         int i;
 756
 757         for (i = tp->irq_cnt - 1; i >= 0; i--)
 758                 napi_disable(&tp->napi[i].napi);
 759 }
 760
 761 static void tg3_napi_enable(struct tg3 *tp)
 762 {
 763         int i;
 764
 765         for (i = 0; i < tp->irq_cnt; i++)
 766                 napi_enable(&tp->napi[i].napi);
 767 }
 768
 769 static inline void tg3_netif_stop(struct tg3 *tp)
 770 {
 771         tp->dev->trans_start = jiffies; /* prevent tx timeout */
 772         tg3_napi_disable(tp);
 773         netif_tx_disable(tp->dev);
 774 }
 775
 776 static inline void tg3_netif_start(struct tg3 *tp)
 777 {
 778         /* NOTE: unconditional netif_tx_wake_all_queues is only
 779          * appropriate so long as all callers are assured to
 780          * have free tx slots (such as after tg3_init_hw)
 781          */
 782         netif_tx_wake_all_queues(tp->dev);
 783
 784         tg3_napi_enable(tp);
 785         tp->napi[0].hw_status->status |= SD_STATUS_UPDATED;
 786         tg3_enable_ints(tp);
 787 }
 788
 789 static void tg3_switch_clocks(struct tg3 *tp)
 790 {
 791         u32 clock_ctrl;
 792         u32 orig_clock_ctrl;
 793
 794         if ((tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) ||
 795             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
 796                 return;
 797
 798         clock_ctrl = tr32(TG3PCI_CLOCK_CTRL);
 799
 800         orig_clock_ctrl = clock_ctrl;
 801         clock_ctrl &= (CLOCK_CTRL_FORCE_CLKRUN |
 802                        CLOCK_CTRL_CLKRUN_OENABLE |
 803                        0x1f);
 804         tp->pci_clock_ctrl = clock_ctrl;
 805
 806         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
 807                 if (orig_clock_ctrl & CLOCK_CTRL_625_CORE) {
 808                         tw32_wait_f(TG3PCI_CLOCK_CTRL,
 809                                     clock_ctrl | CLOCK_CTRL_625_CORE, 40);
 810                 }
 811         } else if ((orig_clock_ctrl & CLOCK_CTRL_44MHZ_CORE) != 0) {
 812                 tw32_wait_f(TG3PCI_CLOCK_CTRL,
 813                             clock_ctrl |
 814                             (CLOCK_CTRL_44MHZ_CORE | CLOCK_CTRL_ALTCLK),
 815                             40);
 816                 tw32_wait_f(TG3PCI_CLOCK_CTRL,
 817                             clock_ctrl | (CLOCK_CTRL_ALTCLK),
 818                             40);
 819         }
 820         tw32_wait_f(TG3PCI_CLOCK_CTRL, clock_ctrl, 40);
 821 }
 822
 823 #define PHY_BUSY_LOOPS  5000
 824
 825 static int tg3_readphy(struct tg3 *tp, int reg, u32 *val)
 826 {
 827         u32 frame_val;
 828         unsigned int loops;
 829         int ret;
 830
 831         if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
 832                 tw32_f(MAC_MI_MODE,
 833                      (tp->mi_mode & ~MAC_MI_MODE_AUTO_POLL));
 834                 udelay(80);
 835         }
 836
 837         *val = 0x0;
 838
 839         frame_val  = ((tp->phy_addr << MI_COM_PHY_ADDR_SHIFT) &
 840                       MI_COM_PHY_ADDR_MASK);
 841         frame_val |= ((reg << MI_COM_REG_ADDR_SHIFT) &
 842                       MI_COM_REG_ADDR_MASK);
 843         frame_val |= (MI_COM_CMD_READ | MI_COM_START);
 844
 845         tw32_f(MAC_MI_COM, frame_val);
 846
 847         loops = PHY_BUSY_LOOPS;
 848         while (loops != 0) {
 849                 udelay(10);
 850                 frame_val = tr32(MAC_MI_COM);
 851
 852                 if ((frame_val & MI_COM_BUSY) == 0) {
 853                         udelay(5);
 854                         frame_val = tr32(MAC_MI_COM);
 855                         break;
 856                 }
 857                 loops -= 1;
 858         }
 859
 860         ret = -EBUSY;
 861         if (loops != 0) {
 862                 *val = frame_val & MI_COM_DATA_MASK;
 863                 ret = 0;
 864         }
 865
 866         if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
 867                 tw32_f(MAC_MI_MODE, tp->mi_mode);
 868                 udelay(80);
 869         }
 870
 871         return ret;
 872 }
 873
 874 static int tg3_writephy(struct tg3 *tp, int reg, u32 val)
 875 {
 876         u32 frame_val;
 877         unsigned int loops;
 878         int ret;
 879
 880         if ((tp->tg3_flags3 & TG3_FLG3_PHY_IS_FET) &&
 881             (reg == MII_TG3_CTRL || reg == MII_TG3_AUX_CTRL))
 882                 return 0;
 883
 884         if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
 885                 tw32_f(MAC_MI_MODE,
 886                      (tp->mi_mode & ~MAC_MI_MODE_AUTO_POLL));
 887                 udelay(80);
 888         }
 889
 890         frame_val  = ((tp->phy_addr << MI_COM_PHY_ADDR_SHIFT) &
 891                       MI_COM_PHY_ADDR_MASK);
 892         frame_val |= ((reg << MI_COM_REG_ADDR_SHIFT) &
 893                       MI_COM_REG_ADDR_MASK);
 894         frame_val |= (val & MI_COM_DATA_MASK);
 895         frame_val |= (MI_COM_CMD_WRITE | MI_COM_START);
 896
 897         tw32_f(MAC_MI_COM, frame_val);
 898
 899         loops = PHY_BUSY_LOOPS;
 900         while (loops != 0) {
 901                 udelay(10);
 902                 frame_val = tr32(MAC_MI_COM);
 903                 if ((frame_val & MI_COM_BUSY) == 0) {
 904                         udelay(5);
 905                         frame_val = tr32(MAC_MI_COM);
 906                         break;
 907                 }
 908                 loops -= 1;
 909         }
 910
 911         ret = -EBUSY;
 912         if (loops != 0)
 913                 ret = 0;
 914
 915         if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
 916                 tw32_f(MAC_MI_MODE, tp->mi_mode);
 917                 udelay(80);
 918         }
 919
 920         return ret;
 921 }
 922
 923 static int tg3_bmcr_reset(struct tg3 *tp)
 924 {
 925         u32 phy_control;
 926         int limit, err;
 927
 928         /* OK, reset it, and poll the BMCR_RESET bit until it
 929          * clears or we time out.
 930          */
 931         phy_control = BMCR_RESET;
 932         err = tg3_writephy(tp, MII_BMCR, phy_control);
 933         if (err != 0)
 934                 return -EBUSY;
 935
 936         limit = 5000;
 937         while (limit--) {
 938                 err = tg3_readphy(tp, MII_BMCR, &phy_control);
 939                 if (err != 0)
 940                         return -EBUSY;
 941
 942                 if ((phy_control & BMCR_RESET) == 0) {
 943                         udelay(40);
 944                         break;
 945                 }
 946                 udelay(10);
 947         }
 948         if (limit < 0)
 949                 return -EBUSY;
 950
 951         return 0;
 952 }
 953
 954 static int tg3_mdio_read(struct mii_bus *bp, int mii_id, int reg)
 955 {
 956         struct tg3 *tp = bp->priv;
 957         u32 val;
 958
 959         spin_lock_bh(&tp->lock);
 960
 961         if (tg3_readphy(tp, reg, &val))
 962                 val = -EIO;
 963
 964         spin_unlock_bh(&tp->lock);
 965
 966         return val;
 967 }
 968
 969 static int tg3_mdio_write(struct mii_bus *bp, int mii_id, int reg, u16 val)
 970 {
 971         struct tg3 *tp = bp->priv;
 972         u32 ret = 0;
 973
 974         spin_lock_bh(&tp->lock);
 975
 976         if (tg3_writephy(tp, reg, val))
 977                 ret = -EIO;
 978
 979         spin_unlock_bh(&tp->lock);
 980
 981         return ret;
 982 }
 983
 984 static int tg3_mdio_reset(struct mii_bus *bp)
 985 {
 986         return 0;
 987 }
 988
 989 static void tg3_mdio_config_5785(struct tg3 *tp)
 990 {
 991         u32 val;
 992         struct phy_device *phydev;
 993
 994         phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
 995         switch (phydev->drv->phy_id & phydev->drv->phy_id_mask) {
 996         case PHY_ID_BCM50610:
 997         case PHY_ID_BCM50610M:
 998                 val = MAC_PHYCFG2_50610_LED_MODES;
 999                 break;
1000         case PHY_ID_BCMAC131:
1001                 val = MAC_PHYCFG2_AC131_LED_MODES;
1002                 break;
1003         case PHY_ID_RTL8211C:
1004                 val = MAC_PHYCFG2_RTL8211C_LED_MODES;
1005                 break;
1006         case PHY_ID_RTL8201E:
1007                 val = MAC_PHYCFG2_RTL8201E_LED_MODES;
1008                 break;
1009         default:
1010                 return;
1011         }
1012
1013         if (phydev->interface != PHY_INTERFACE_MODE_RGMII) {
1014                 tw32(MAC_PHYCFG2, val);
1015
1016                 val = tr32(MAC_PHYCFG1);
1017                 val &= ~(MAC_PHYCFG1_RGMII_INT |
1018                          MAC_PHYCFG1_RXCLK_TO_MASK | MAC_PHYCFG1_TXCLK_TO_MASK);
1019                 val |= MAC_PHYCFG1_RXCLK_TIMEOUT | MAC_PHYCFG1_TXCLK_TIMEOUT;
1020                 tw32(MAC_PHYCFG1, val);
1021
1022                 return;
1023         }
1024
1025         if (!(tp->tg3_flags3 & TG3_FLG3_RGMII_INBAND_DISABLE))
1026                 val |= MAC_PHYCFG2_EMODE_MASK_MASK |
1027                        MAC_PHYCFG2_FMODE_MASK_MASK |
1028                        MAC_PHYCFG2_GMODE_MASK_MASK |
1029                        MAC_PHYCFG2_ACT_MASK_MASK   |
1030                        MAC_PHYCFG2_QUAL_MASK_MASK |
1031                        MAC_PHYCFG2_INBAND_ENABLE;
1032
1033         tw32(MAC_PHYCFG2, val);
1034
1035         val = tr32(MAC_PHYCFG1);
1036         val &= ~(MAC_PHYCFG1_RXCLK_TO_MASK | MAC_PHYCFG1_TXCLK_TO_MASK |
1037                  MAC_PHYCFG1_RGMII_EXT_RX_DEC | MAC_PHYCFG1_RGMII_SND_STAT_EN);
1038         if (!(tp->tg3_flags3 & TG3_FLG3_RGMII_INBAND_DISABLE)) {
1039                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_RX_EN)
1040                         val |= MAC_PHYCFG1_RGMII_EXT_RX_DEC;
1041                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_TX_EN)
1042                         val |= MAC_PHYCFG1_RGMII_SND_STAT_EN;
1043         }
1044         val |= MAC_PHYCFG1_RXCLK_TIMEOUT | MAC_PHYCFG1_TXCLK_TIMEOUT |
1045                MAC_PHYCFG1_RGMII_INT | MAC_PHYCFG1_TXC_DRV;
1046         tw32(MAC_PHYCFG1, val);
1047
1048         val = tr32(MAC_EXT_RGMII_MODE);
1049         val &= ~(MAC_RGMII_MODE_RX_INT_B |
1050                  MAC_RGMII_MODE_RX_QUALITY |
1051                  MAC_RGMII_MODE_RX_ACTIVITY |
1052                  MAC_RGMII_MODE_RX_ENG_DET |
1053                  MAC_RGMII_MODE_TX_ENABLE |
1054                  MAC_RGMII_MODE_TX_LOWPWR |
1055                  MAC_RGMII_MODE_TX_RESET);
1056         if (!(tp->tg3_flags3 & TG3_FLG3_RGMII_INBAND_DISABLE)) {
1057                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_RX_EN)
1058                         val |= MAC_RGMII_MODE_RX_INT_B |
1059                                MAC_RGMII_MODE_RX_QUALITY |
1060                                MAC_RGMII_MODE_RX_ACTIVITY |
1061                                MAC_RGMII_MODE_RX_ENG_DET;
1062                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_TX_EN)
1063                         val |= MAC_RGMII_MODE_TX_ENABLE |
1064                                MAC_RGMII_MODE_TX_LOWPWR |
1065                                MAC_RGMII_MODE_TX_RESET;
1066         }
1067         tw32(MAC_EXT_RGMII_MODE, val);
1068 }
1069
1070 static void tg3_mdio_start(struct tg3 *tp)
1071 {
1072         tp->mi_mode &= ~MAC_MI_MODE_AUTO_POLL;
1073         tw32_f(MAC_MI_MODE, tp->mi_mode);
1074         udelay(80);
1075
1076         if ((tp->tg3_flags3 & TG3_FLG3_MDIOBUS_INITED) &&
1077             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
1078                 tg3_mdio_config_5785(tp);
1079 }
1080
1081 static int tg3_mdio_init(struct tg3 *tp)
1082 {
1083         int i;
1084         u32 reg;
1085         struct phy_device *phydev;
1086
1087         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717) {
1088                 u32 funcnum, is_serdes;
1089
1090                 funcnum = tr32(TG3_CPMU_STATUS) & TG3_CPMU_STATUS_PCIE_FUNC;
1091                 if (funcnum)
1092                         tp->phy_addr = 2;
1093                 else
1094                         tp->phy_addr = 1;
1095
1096                 if (tp->pci_chip_rev_id != CHIPREV_ID_5717_A0)
1097                         is_serdes = tr32(SG_DIG_STATUS) & SG_DIG_IS_SERDES;
1098                 else
1099                         is_serdes = tr32(TG3_CPMU_PHY_STRAP) &
1100                                     TG3_CPMU_PHY_STRAP_IS_SERDES;
1101                 if (is_serdes)
1102                         tp->phy_addr += 7;
1103         } else
1104                 tp->phy_addr = TG3_PHY_MII_ADDR;
1105
1106         tg3_mdio_start(tp);
1107
1108         if (!(tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) ||
1109             (tp->tg3_flags3 & TG3_FLG3_MDIOBUS_INITED))
1110                 return 0;
1111
1112         tp->mdio_bus = mdiobus_alloc();
1113         if (tp->mdio_bus == NULL)
1114                 return -ENOMEM;
1115
1116         tp->mdio_bus->name     = "tg3 mdio bus";
1117         snprintf(tp->mdio_bus->id, MII_BUS_ID_SIZE, "%x",
1118                  (tp->pdev->bus->number << 8) | tp->pdev->devfn);
1119         tp->mdio_bus->priv     = tp;
1120         tp->mdio_bus->parent   = &tp->pdev->dev;
1121         tp->mdio_bus->read     = &tg3_mdio_read;
1122         tp->mdio_bus->write    = &tg3_mdio_write;
1123         tp->mdio_bus->reset    = &tg3_mdio_reset;
1124         tp->mdio_bus->phy_mask = ~(1 << TG3_PHY_MII_ADDR);
1125         tp->mdio_bus->irq      = &tp->mdio_irq[0];
1126
1127         for (i = 0; i < PHY_MAX_ADDR; i++)
1128                 tp->mdio_bus->irq[i] = PHY_POLL;
1129
1130         /* The bus registration will look for all the PHYs on the mdio bus.
1131          * Unfortunately, it does not ensure the PHY is powered up before
1132          * accessing the PHY ID registers.  A chip reset is the
1133          * quickest way to bring the device back to an operational state..
1134          */
1135         if (tg3_readphy(tp, MII_BMCR, &reg) || (reg & BMCR_PDOWN))
1136                 tg3_bmcr_reset(tp);
1137
1138         i = mdiobus_register(tp->mdio_bus);
1139         if (i) {
1140                 dev_warn(&tp->pdev->dev, "mdiobus_reg failed (0x%x)\n", i);
1141                 mdiobus_free(tp->mdio_bus);
1142                 return i;
1143         }
1144
1145         phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
1146
1147         if (!phydev || !phydev->drv) {
1148                 dev_warn(&tp->pdev->dev, "No PHY devices\n");
1149                 mdiobus_unregister(tp->mdio_bus);
1150                 mdiobus_free(tp->mdio_bus);
1151                 return -ENODEV;
1152         }
1153
1154         switch (phydev->drv->phy_id & phydev->drv->phy_id_mask) {
1155         case PHY_ID_BCM57780:
1156                 phydev->interface = PHY_INTERFACE_MODE_GMII;
1157                 phydev->dev_flags |= PHY_BRCM_AUTO_PWRDWN_ENABLE;
1158                 break;
1159         case PHY_ID_BCM50610:
1160         case PHY_ID_BCM50610M:
1161                 phydev->dev_flags |= PHY_BRCM_CLEAR_RGMII_MODE |
1162                                      PHY_BRCM_RX_REFCLK_UNUSED |
1163                                      PHY_BRCM_DIS_TXCRXC_NOENRGY |
1164                                      PHY_BRCM_AUTO_PWRDWN_ENABLE;
1165                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_INBAND_DISABLE)
1166                         phydev->dev_flags |= PHY_BRCM_STD_IBND_DISABLE;
1167                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_RX_EN)
1168                         phydev->dev_flags |= PHY_BRCM_EXT_IBND_RX_ENABLE;
1169                 if (tp->tg3_flags3 & TG3_FLG3_RGMII_EXT_IBND_TX_EN)
1170                         phydev->dev_flags |= PHY_BRCM_EXT_IBND_TX_ENABLE;
1171                 /* fallthru */
1172         case PHY_ID_RTL8211C:
1173                 phydev->interface = PHY_INTERFACE_MODE_RGMII;
1174                 break;
1175         case PHY_ID_RTL8201E:
1176         case PHY_ID_BCMAC131:
1177                 phydev->interface = PHY_INTERFACE_MODE_MII;
1178                 phydev->dev_flags |= PHY_BRCM_AUTO_PWRDWN_ENABLE;
1179                 tp->tg3_flags3 |= TG3_FLG3_PHY_IS_FET;
1180                 break;
1181         }
1182
1183         tp->tg3_flags3 |= TG3_FLG3_MDIOBUS_INITED;
1184
1185         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
1186                 tg3_mdio_config_5785(tp);
1187
1188         return 0;
1189 }
1190
1191 static void tg3_mdio_fini(struct tg3 *tp)
1192 {
1193         if (tp->tg3_flags3 & TG3_FLG3_MDIOBUS_INITED) {
1194                 tp->tg3_flags3 &= ~TG3_FLG3_MDIOBUS_INITED;
1195                 mdiobus_unregister(tp->mdio_bus);
1196                 mdiobus_free(tp->mdio_bus);
1197         }
1198 }
1199
1200 /* tp->lock is held. */
1201 static inline void tg3_generate_fw_event(struct tg3 *tp)
1202 {
1203         u32 val;
1204
1205         val = tr32(GRC_RX_CPU_EVENT);
1206         val |= GRC_RX_CPU_DRIVER_EVENT;
1207         tw32_f(GRC_RX_CPU_EVENT, val);
1208
1209         tp->last_event_jiffies = jiffies;
1210 }
1211
1212 #define TG3_FW_EVENT_TIMEOUT_USEC 2500
1213
1214 /* tp->lock is held. */
1215 static void tg3_wait_for_event_ack(struct tg3 *tp)
1216 {
1217         int i;
1218         unsigned int delay_cnt;
1219         long time_remain;
1220
1221         /* If enough time has passed, no wait is necessary. */
1222         time_remain = (long)(tp->last_event_jiffies + 1 +
1223                       usecs_to_jiffies(TG3_FW_EVENT_TIMEOUT_USEC)) -
1224                       (long)jiffies;
1225         if (time_remain < 0)
1226                 return;
1227
1228         /* Check if we can shorten the wait time. */
1229         delay_cnt = jiffies_to_usecs(time_remain);
1230         if (delay_cnt > TG3_FW_EVENT_TIMEOUT_USEC)
1231                 delay_cnt = TG3_FW_EVENT_TIMEOUT_USEC;
1232         delay_cnt = (delay_cnt >> 3) + 1;
1233
1234         for (i = 0; i < delay_cnt; i++) {
1235                 if (!(tr32(GRC_RX_CPU_EVENT) & GRC_RX_CPU_DRIVER_EVENT))
1236                         break;
1237                 udelay(8);
1238         }
1239 }
1240
1241 /* tp->lock is held. */
1242 static void tg3_ump_link_report(struct tg3 *tp)
1243 {
1244         u32 reg;
1245         u32 val;
1246
1247         if (!(tp->tg3_flags2 & TG3_FLG2_5780_CLASS) ||
1248             !(tp->tg3_flags  & TG3_FLAG_ENABLE_ASF))
1249                 return;
1250
1251         tg3_wait_for_event_ack(tp);
1252
1253         tg3_write_mem(tp, NIC_SRAM_FW_CMD_MBOX, FWCMD_NICDRV_LINK_UPDATE);
1254
1255         tg3_write_mem(tp, NIC_SRAM_FW_CMD_LEN_MBOX, 14);
1256
1257         val = 0;
1258         if (!tg3_readphy(tp, MII_BMCR, &reg))
1259                 val = reg << 16;
1260         if (!tg3_readphy(tp, MII_BMSR, &reg))
1261                 val |= (reg & 0xffff);
1262         tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX, val);
1263
1264         val = 0;
1265         if (!tg3_readphy(tp, MII_ADVERTISE, &reg))
1266                 val = reg << 16;
1267         if (!tg3_readphy(tp, MII_LPA, &reg))
1268                 val |= (reg & 0xffff);
1269         tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 4, val);
1270
1271         val = 0;
1272         if (!(tp->tg3_flags2 & TG3_FLG2_MII_SERDES)) {
1273                 if (!tg3_readphy(tp, MII_CTRL1000, &reg))
1274                         val = reg << 16;
1275                 if (!tg3_readphy(tp, MII_STAT1000, &reg))
1276                         val |= (reg & 0xffff);
1277         }
1278         tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 8, val);
1279
1280         if (!tg3_readphy(tp, MII_PHYADDR, &reg))
1281                 val = reg << 16;
1282         else
1283                 val = 0;
1284         tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 12, val);
1285
1286         tg3_generate_fw_event(tp);
1287 }
1288
1289 static void tg3_link_report(struct tg3 *tp)
1290 {
1291         if (!netif_carrier_ok(tp->dev)) {
1292                 netif_info(tp, link, tp->dev, "Link is down\n");
1293                 tg3_ump_link_report(tp);
1294         } else if (netif_msg_link(tp)) {
1295                 netdev_info(tp->dev, "Link is up at %d Mbps, %s duplex\n",
1296                             (tp->link_config.active_speed == SPEED_1000 ?
1297                              1000 :
1298                              (tp->link_config.active_speed == SPEED_100 ?
1299                               100 : 10)),
1300                             (tp->link_config.active_duplex == DUPLEX_FULL ?
1301                              "full" : "half"));
1302
1303                 netdev_info(tp->dev, "Flow control is %s for TX and %s for RX\n",
1304                             (tp->link_config.active_flowctrl & FLOW_CTRL_TX) ?
1305                             "on" : "off",
1306                             (tp->link_config.active_flowctrl & FLOW_CTRL_RX) ?
1307                             "on" : "off");
1308                 tg3_ump_link_report(tp);
1309         }
1310 }
1311
1312 static u16 tg3_advert_flowctrl_1000T(u8 flow_ctrl)
1313 {
1314         u16 miireg;
1315
1316         if ((flow_ctrl & FLOW_CTRL_TX) && (flow_ctrl & FLOW_CTRL_RX))
1317                 miireg = ADVERTISE_PAUSE_CAP;
1318         else if (flow_ctrl & FLOW_CTRL_TX)
1319                 miireg = ADVERTISE_PAUSE_ASYM;
1320         else if (flow_ctrl & FLOW_CTRL_RX)
1321                 miireg = ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
1322         else
1323                 miireg = 0;
1324
1325         return miireg;
1326 }
1327
1328 static u16 tg3_advert_flowctrl_1000X(u8 flow_ctrl)
1329 {
1330         u16 miireg;
1331
1332         if ((flow_ctrl & FLOW_CTRL_TX) && (flow_ctrl & FLOW_CTRL_RX))
1333                 miireg = ADVERTISE_1000XPAUSE;
1334         else if (flow_ctrl & FLOW_CTRL_TX)
1335                 miireg = ADVERTISE_1000XPSE_ASYM;
1336         else if (flow_ctrl & FLOW_CTRL_RX)
1337                 miireg = ADVERTISE_1000XPAUSE | ADVERTISE_1000XPSE_ASYM;
1338         else
1339                 miireg = 0;
1340
1341         return miireg;
1342 }
1343
1344 static u8 tg3_resolve_flowctrl_1000X(u16 lcladv, u16 rmtadv)
1345 {
1346         u8 cap = 0;
1347
1348         if (lcladv & ADVERTISE_1000XPAUSE) {
1349                 if (lcladv & ADVERTISE_1000XPSE_ASYM) {
1350                         if (rmtadv & LPA_1000XPAUSE)
1351                                 cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
1352                         else if (rmtadv & LPA_1000XPAUSE_ASYM)
1353                                 cap = FLOW_CTRL_RX;
1354                 } else {
1355                         if (rmtadv & LPA_1000XPAUSE)
1356                                 cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
1357                 }
1358         } else if (lcladv & ADVERTISE_1000XPSE_ASYM) {
1359                 if ((rmtadv & LPA_1000XPAUSE) && (rmtadv & LPA_1000XPAUSE_ASYM))
1360                         cap = FLOW_CTRL_TX;
1361         }
1362
1363         return cap;
1364 }
1365
1366 static void tg3_setup_flow_control(struct tg3 *tp, u32 lcladv, u32 rmtadv)
1367 {
1368         u8 autoneg;
1369         u8 flowctrl = 0;
1370         u32 old_rx_mode = tp->rx_mode;
1371         u32 old_tx_mode = tp->tx_mode;
1372
1373         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB)
1374                 autoneg = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR]->autoneg;
1375         else
1376                 autoneg = tp->link_config.autoneg;
1377
1378         if (autoneg == AUTONEG_ENABLE &&
1379             (tp->tg3_flags & TG3_FLAG_PAUSE_AUTONEG)) {
1380                 if (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES)
1381                         flowctrl = tg3_resolve_flowctrl_1000X(lcladv, rmtadv);
1382                 else
1383                         flowctrl = mii_resolve_flowctrl_fdx(lcladv, rmtadv);
1384         } else
1385                 flowctrl = tp->link_config.flowctrl;
1386
1387         tp->link_config.active_flowctrl = flowctrl;
1388
1389         if (flowctrl & FLOW_CTRL_RX)
1390                 tp->rx_mode |= RX_MODE_FLOW_CTRL_ENABLE;
1391         else
1392                 tp->rx_mode &= ~RX_MODE_FLOW_CTRL_ENABLE;
1393
1394         if (old_rx_mode != tp->rx_mode)
1395                 tw32_f(MAC_RX_MODE, tp->rx_mode);
1396
1397         if (flowctrl & FLOW_CTRL_TX)
1398                 tp->tx_mode |= TX_MODE_FLOW_CTRL_ENABLE;
1399         else
1400                 tp->tx_mode &= ~TX_MODE_FLOW_CTRL_ENABLE;
1401
1402         if (old_tx_mode != tp->tx_mode)
1403                 tw32_f(MAC_TX_MODE, tp->tx_mode);
1404 }
1405
1406 static void tg3_adjust_link(struct net_device *dev)
1407 {
1408         u8 oldflowctrl, linkmesg = 0;
1409         u32 mac_mode, lcl_adv, rmt_adv;
1410         struct tg3 *tp = netdev_priv(dev);
1411         struct phy_device *phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
1412
1413         spin_lock_bh(&tp->lock);
1414
1415         mac_mode = tp->mac_mode & ~(MAC_MODE_PORT_MODE_MASK |
1416                                     MAC_MODE_HALF_DUPLEX);
1417
1418         oldflowctrl = tp->link_config.active_flowctrl;
1419
1420         if (phydev->link) {
1421                 lcl_adv = 0;
1422                 rmt_adv = 0;
1423
1424                 if (phydev->speed == SPEED_100 || phydev->speed == SPEED_10)
1425                         mac_mode |= MAC_MODE_PORT_MODE_MII;
1426                 else if (phydev->speed == SPEED_1000 ||
1427                          GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785)
1428                         mac_mode |= MAC_MODE_PORT_MODE_GMII;
1429                 else
1430                         mac_mode |= MAC_MODE_PORT_MODE_MII;
1431
1432                 if (phydev->duplex == DUPLEX_HALF)
1433                         mac_mode |= MAC_MODE_HALF_DUPLEX;
1434                 else {
1435                         lcl_adv = tg3_advert_flowctrl_1000T(
1436                                   tp->link_config.flowctrl);
1437
1438                         if (phydev->pause)
1439                                 rmt_adv = LPA_PAUSE_CAP;
1440                         if (phydev->asym_pause)
1441                                 rmt_adv |= LPA_PAUSE_ASYM;
1442                 }
1443
1444                 tg3_setup_flow_control(tp, lcl_adv, rmt_adv);
1445         } else
1446                 mac_mode |= MAC_MODE_PORT_MODE_GMII;
1447
1448         if (mac_mode != tp->mac_mode) {
1449                 tp->mac_mode = mac_mode;
1450                 tw32_f(MAC_MODE, tp->mac_mode);
1451                 udelay(40);
1452         }
1453
1454         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785) {
1455                 if (phydev->speed == SPEED_10)
1456                         tw32(MAC_MI_STAT,
1457                              MAC_MI_STAT_10MBPS_MODE |
1458                              MAC_MI_STAT_LNKSTAT_ATTN_ENAB);
1459                 else
1460                         tw32(MAC_MI_STAT, MAC_MI_STAT_LNKSTAT_ATTN_ENAB);
1461         }
1462
1463         if (phydev->speed == SPEED_1000 && phydev->duplex == DUPLEX_HALF)
1464                 tw32(MAC_TX_LENGTHS,
1465                      ((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
1466                       (6 << TX_LENGTHS_IPG_SHIFT) |
1467                       (0xff << TX_LENGTHS_SLOT_TIME_SHIFT)));
1468         else
1469                 tw32(MAC_TX_LENGTHS,
1470                      ((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
1471                       (6 << TX_LENGTHS_IPG_SHIFT) |
1472                       (32 << TX_LENGTHS_SLOT_TIME_SHIFT)));
1473
1474         if ((phydev->link && tp->link_config.active_speed == SPEED_INVALID) ||
1475             (!phydev->link && tp->link_config.active_speed != SPEED_INVALID) ||
1476             phydev->speed != tp->link_config.active_speed ||
1477             phydev->duplex != tp->link_config.active_duplex ||
1478             oldflowctrl != tp->link_config.active_flowctrl)
1479                 linkmesg = 1;
1480
1481         tp->link_config.active_speed = phydev->speed;
1482         tp->link_config.active_duplex = phydev->duplex;
1483
1484         spin_unlock_bh(&tp->lock);
1485
1486         if (linkmesg)
1487                 tg3_link_report(tp);
1488 }
1489
1490 static int tg3_phy_init(struct tg3 *tp)
1491 {
1492         struct phy_device *phydev;
1493
1494         if (tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED)
1495                 return 0;
1496
1497         /* Bring the PHY back to a known state. */
1498         tg3_bmcr_reset(tp);
1499
1500         phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
1501
1502         /* Attach the MAC to the PHY. */
1503         phydev = phy_connect(tp->dev, dev_name(&phydev->dev), tg3_adjust_link,
1504                              phydev->dev_flags, phydev->interface);
1505         if (IS_ERR(phydev)) {
1506                 dev_err(&tp->pdev->dev, "Could not attach to PHY\n");
1507                 return PTR_ERR(phydev);
1508         }
1509
1510         /* Mask with MAC supported features. */
1511         switch (phydev->interface) {
1512         case PHY_INTERFACE_MODE_GMII:
1513         case PHY_INTERFACE_MODE_RGMII:
1514                 if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY)) {
1515                         phydev->supported &= (PHY_GBIT_FEATURES |
1516                                               SUPPORTED_Pause |
1517                                               SUPPORTED_Asym_Pause);
1518                         break;
1519                 }
1520                 /* fallthru */
1521         case PHY_INTERFACE_MODE_MII:
1522                 phydev->supported &= (PHY_BASIC_FEATURES |
1523                                       SUPPORTED_Pause |
1524                                       SUPPORTED_Asym_Pause);
1525                 break;
1526         default:
1527                 phy_disconnect(tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR]);
1528                 return -EINVAL;
1529         }
1530
1531         tp->tg3_flags3 |= TG3_FLG3_PHY_CONNECTED;
1532
1533         phydev->advertising = phydev->supported;
1534
1535         return 0;
1536 }
1537
1538 static void tg3_phy_start(struct tg3 *tp)
1539 {
1540         struct phy_device *phydev;
1541
1542         if (!(tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED))
1543                 return;
1544
1545         phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
1546
1547         if (tp->link_config.phy_is_low_power) {
1548                 tp->link_config.phy_is_low_power = 0;
1549                 phydev->speed = tp->link_config.orig_speed;
1550                 phydev->duplex = tp->link_config.orig_duplex;
1551                 phydev->autoneg = tp->link_config.orig_autoneg;
1552                 phydev->advertising = tp->link_config.orig_advertising;
1553         }
1554
1555         phy_start(phydev);
1556
1557         phy_start_aneg(phydev);
1558 }
1559
1560 static void tg3_phy_stop(struct tg3 *tp)
1561 {
1562         if (!(tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED))
1563                 return;
1564
1565         phy_stop(tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR]);
1566 }
1567
1568 static void tg3_phy_fini(struct tg3 *tp)
1569 {
1570         if (tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED) {
1571                 phy_disconnect(tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR]);
1572                 tp->tg3_flags3 &= ~TG3_FLG3_PHY_CONNECTED;
1573         }
1574 }
1575
1576 static void tg3_phydsp_write(struct tg3 *tp, u32 reg, u32 val)
1577 {
1578         tg3_writephy(tp, MII_TG3_DSP_ADDRESS, reg);
1579         tg3_writephy(tp, MII_TG3_DSP_RW_PORT, val);
1580 }
1581
1582 static void tg3_phy_fet_toggle_apd(struct tg3 *tp, bool enable)
1583 {
1584         u32 phytest;
1585
1586         if (!tg3_readphy(tp, MII_TG3_FET_TEST, &phytest)) {
1587                 u32 phy;
1588
1589                 tg3_writephy(tp, MII_TG3_FET_TEST,
1590                              phytest | MII_TG3_FET_SHADOW_EN);
1591                 if (!tg3_readphy(tp, MII_TG3_FET_SHDW_AUXSTAT2, &phy)) {
1592                         if (enable)
1593                                 phy |= MII_TG3_FET_SHDW_AUXSTAT2_APD;
1594                         else
1595                                 phy &= ~MII_TG3_FET_SHDW_AUXSTAT2_APD;
1596                         tg3_writephy(tp, MII_TG3_FET_SHDW_AUXSTAT2, phy);
1597                 }
1598                 tg3_writephy(tp, MII_TG3_FET_TEST, phytest);
1599         }
1600 }
1601
1602 static void tg3_phy_toggle_apd(struct tg3 *tp, bool enable)
1603 {
1604         u32 reg;
1605
1606         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ||
1607                 (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 &&
1608              (tp->tg3_flags2 & TG3_FLG2_MII_SERDES)))
1609                 return;
1610
1611         if (tp->tg3_flags3 & TG3_FLG3_PHY_IS_FET) {
1612                 tg3_phy_fet_toggle_apd(tp, enable);
1613                 return;
1614         }
1615
1616         reg = MII_TG3_MISC_SHDW_WREN |
1617               MII_TG3_MISC_SHDW_SCR5_SEL |
1618               MII_TG3_MISC_SHDW_SCR5_LPED |
1619               MII_TG3_MISC_SHDW_SCR5_DLPTLM |
1620               MII_TG3_MISC_SHDW_SCR5_SDTL |
1621               MII_TG3_MISC_SHDW_SCR5_C125OE;
1622         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5784 || !enable)
1623                 reg |= MII_TG3_MISC_SHDW_SCR5_DLLAPD;
1624
1625         tg3_writephy(tp, MII_TG3_MISC_SHDW, reg);
1626
1627
1628         reg = MII_TG3_MISC_SHDW_WREN |
1629               MII_TG3_MISC_SHDW_APD_SEL |
1630               MII_TG3_MISC_SHDW_APD_WKTM_84MS;
1631         if (enable)
1632                 reg |= MII_TG3_MISC_SHDW_APD_ENABLE;
1633
1634         tg3_writephy(tp, MII_TG3_MISC_SHDW, reg);
1635 }
1636
1637 static void tg3_phy_toggle_automdix(struct tg3 *tp, int enable)
1638 {
1639         u32 phy;
1640
1641         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ||
1642             (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES))
1643                 return;
1644
1645         if (tp->tg3_flags3 & TG3_FLG3_PHY_IS_FET) {
1646                 u32 ephy;
1647
1648                 if (!tg3_readphy(tp, MII_TG3_FET_TEST, &ephy)) {
1649                         u32 reg = MII_TG3_FET_SHDW_MISCCTRL;
1650
1651                         tg3_writephy(tp, MII_TG3_FET_TEST,
1652                                      ephy | MII_TG3_FET_SHADOW_EN);
1653                         if (!tg3_readphy(tp, reg, &phy)) {
1654                                 if (enable)
1655                                         phy |= MII_TG3_FET_SHDW_MISCCTRL_MDIX;
1656                                 else
1657                                         phy &= ~MII_TG3_FET_SHDW_MISCCTRL_MDIX;
1658                                 tg3_writephy(tp, reg, phy);
1659                         }
1660                         tg3_writephy(tp, MII_TG3_FET_TEST, ephy);
1661                 }
1662         } else {
1663                 phy = MII_TG3_AUXCTL_MISC_RDSEL_MISC |
1664                       MII_TG3_AUXCTL_SHDWSEL_MISC;
1665                 if (!tg3_writephy(tp, MII_TG3_AUX_CTRL, phy) &&
1666                     !tg3_readphy(tp, MII_TG3_AUX_CTRL, &phy)) {
1667                         if (enable)
1668                                 phy |= MII_TG3_AUXCTL_MISC_FORCE_AMDIX;
1669                         else
1670                                 phy &= ~MII_TG3_AUXCTL_MISC_FORCE_AMDIX;
1671                         phy |= MII_TG3_AUXCTL_MISC_WREN;
1672                         tg3_writephy(tp, MII_TG3_AUX_CTRL, phy);
1673                 }
1674         }
1675 }
1676
1677 static void tg3_phy_set_wirespeed(struct tg3 *tp)
1678 {
1679         u32 val;
1680
1681         if (tp->tg3_flags2 & TG3_FLG2_NO_ETH_WIRE_SPEED)
1682                 return;
1683
1684         if (!tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x7007) &&
1685             !tg3_readphy(tp, MII_TG3_AUX_CTRL, &val))
1686                 tg3_writephy(tp, MII_TG3_AUX_CTRL,
1687                              (val | (1 << 15) | (1 << 4)));
1688 }
1689
1690 static void tg3_phy_apply_otp(struct tg3 *tp)
1691 {
1692         u32 otp, phy;
1693
1694         if (!tp->phy_otp)
1695                 return;
1696
1697         otp = tp->phy_otp;
1698
1699         /* Enable SM_DSP clock and tx 6dB coding. */
1700         phy = MII_TG3_AUXCTL_SHDWSEL_AUXCTL |
1701               MII_TG3_AUXCTL_ACTL_SMDSP_ENA |
1702               MII_TG3_AUXCTL_ACTL_TX_6DB;
1703         tg3_writephy(tp, MII_TG3_AUX_CTRL, phy);
1704
1705         phy = ((otp & TG3_OTP_AGCTGT_MASK) >> TG3_OTP_AGCTGT_SHIFT);
1706         phy |= MII_TG3_DSP_TAP1_AGCTGT_DFLT;
1707         tg3_phydsp_write(tp, MII_TG3_DSP_TAP1, phy);
1708
1709         phy = ((otp & TG3_OTP_HPFFLTR_MASK) >> TG3_OTP_HPFFLTR_SHIFT) |
1710               ((otp & TG3_OTP_HPFOVER_MASK) >> TG3_OTP_HPFOVER_SHIFT);
1711         tg3_phydsp_write(tp, MII_TG3_DSP_AADJ1CH0, phy);
1712
1713         phy = ((otp & TG3_OTP_LPFDIS_MASK) >> TG3_OTP_LPFDIS_SHIFT);
1714         phy |= MII_TG3_DSP_AADJ1CH3_ADCCKADJ;
1715         tg3_phydsp_write(tp, MII_TG3_DSP_AADJ1CH3, phy);
1716
1717         phy = ((otp & TG3_OTP_VDAC_MASK) >> TG3_OTP_VDAC_SHIFT);
1718         tg3_phydsp_write(tp, MII_TG3_DSP_EXP75, phy);
1719
1720         phy = ((otp & TG3_OTP_10BTAMP_MASK) >> TG3_OTP_10BTAMP_SHIFT);
1721         tg3_phydsp_write(tp, MII_TG3_DSP_EXP96, phy);
1722
1723         phy = ((otp & TG3_OTP_ROFF_MASK) >> TG3_OTP_ROFF_SHIFT) |
1724               ((otp & TG3_OTP_RCOFF_MASK) >> TG3_OTP_RCOFF_SHIFT);
1725         tg3_phydsp_write(tp, MII_TG3_DSP_EXP97, phy);
1726
1727         /* Turn off SM_DSP clock. */
1728         phy = MII_TG3_AUXCTL_SHDWSEL_AUXCTL |
1729               MII_TG3_AUXCTL_ACTL_TX_6DB;
1730         tg3_writephy(tp, MII_TG3_AUX_CTRL, phy);
1731 }
1732
1733 static int tg3_wait_macro_done(struct tg3 *tp)
1734 {
1735         int limit = 100;
1736
1737         while (limit--) {
1738                 u32 tmp32;
1739
1740                 if (!tg3_readphy(tp, 0x16, &tmp32)) {
1741                         if ((tmp32 & 0x1000) == 0)
1742                                 break;
1743                 }
1744         }
1745         if (limit < 0)
1746                 return -EBUSY;
1747
1748         return 0;
1749 }
1750
1751 static int tg3_phy_write_and_check_testpat(struct tg3 *tp, int *resetp)
1752 {
1753         static const u32 test_pat[4][6] = {
1754         { 0x00005555, 0x00000005, 0x00002aaa, 0x0000000a, 0x00003456, 0x00000003 },
1755         { 0x00002aaa, 0x0000000a, 0x00003333, 0x00000003, 0x0000789a, 0x00000005 },
1756         { 0x00005a5a, 0x00000005, 0x00002a6a, 0x0000000a, 0x00001bcd, 0x00000003 },
1757         { 0x00002a5a, 0x0000000a, 0x000033c3, 0x00000003, 0x00002ef1, 0x00000005 }
1758         };
1759         int chan;
1760
1761         for (chan = 0; chan < 4; chan++) {
1762                 int i;
1763
1764                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
1765                              (chan * 0x2000) | 0x0200);
1766                 tg3_writephy(tp, 0x16, 0x0002);
1767
1768                 for (i = 0; i < 6; i++)
1769                         tg3_writephy(tp, MII_TG3_DSP_RW_PORT,
1770                                      test_pat[chan][i]);
1771
1772                 tg3_writephy(tp, 0x16, 0x0202);
1773                 if (tg3_wait_macro_done(tp)) {
1774                         *resetp = 1;
1775                         return -EBUSY;
1776                 }
1777
1778                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
1779                              (chan * 0x2000) | 0x0200);
1780                 tg3_writephy(tp, 0x16, 0x0082);
1781                 if (tg3_wait_macro_done(tp)) {
1782                         *resetp = 1;
1783                         return -EBUSY;
1784                 }
1785
1786                 tg3_writephy(tp, 0x16, 0x0802);
1787                 if (tg3_wait_macro_done(tp)) {
1788                         *resetp = 1;
1789                         return -EBUSY;
1790                 }
1791
1792                 for (i = 0; i < 6; i += 2) {
1793                         u32 low, high;
1794
1795                         if (tg3_readphy(tp, MII_TG3_DSP_RW_PORT, &low) ||
1796                             tg3_readphy(tp, MII_TG3_DSP_RW_PORT, &high) ||
1797                             tg3_wait_macro_done(tp)) {
1798                                 *resetp = 1;
1799                                 return -EBUSY;
1800                         }
1801                         low &= 0x7fff;
1802                         high &= 0x000f;
1803                         if (low != test_pat[chan][i] ||
1804                             high != test_pat[chan][i+1]) {
1805                                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000b);
1806                                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x4001);
1807                                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x4005);
1808
1809                                 return -EBUSY;
1810                         }
1811                 }
1812         }
1813
1814         return 0;
1815 }
1816
1817 static int tg3_phy_reset_chanpat(struct tg3 *tp)
1818 {
1819         int chan;
1820
1821         for (chan = 0; chan < 4; chan++) {
1822                 int i;
1823
1824                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
1825                              (chan * 0x2000) | 0x0200);
1826                 tg3_writephy(tp, 0x16, 0x0002);
1827                 for (i = 0; i < 6; i++)
1828                         tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x000);
1829                 tg3_writephy(tp, 0x16, 0x0202);
1830                 if (tg3_wait_macro_done(tp))
1831                         return -EBUSY;
1832         }
1833
1834         return 0;
1835 }
1836
1837 static int tg3_phy_reset_5703_4_5(struct tg3 *tp)
1838 {
1839         u32 reg32, phy9_orig;
1840         int retries, do_phy_reset, err;
1841
1842         retries = 10;
1843         do_phy_reset = 1;
1844         do {
1845                 if (do_phy_reset) {
1846                         err = tg3_bmcr_reset(tp);
1847                         if (err)
1848                                 return err;
1849                         do_phy_reset = 0;
1850                 }
1851
1852                 /* Disable transmitter and interrupt.  */
1853                 if (tg3_readphy(tp, MII_TG3_EXT_CTRL, &reg32))
1854                         continue;
1855
1856                 reg32 |= 0x3000;
1857                 tg3_writephy(tp, MII_TG3_EXT_CTRL, reg32);
1858
1859                 /* Set full-duplex, 1000 mbps.  */
1860                 tg3_writephy(tp, MII_BMCR,
1861                              BMCR_FULLDPLX | TG3_BMCR_SPEED1000);
1862
1863                 /* Set to master mode.  */
1864                 if (tg3_readphy(tp, MII_TG3_CTRL, &phy9_orig))
1865                         continue;
1866
1867                 tg3_writephy(tp, MII_TG3_CTRL,
1868                              (MII_TG3_CTRL_AS_MASTER |
1869                               MII_TG3_CTRL_ENABLE_AS_MASTER));
1870
1871                 /* Enable SM_DSP_CLOCK and 6dB.  */
1872                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
1873
1874                 /* Block the PHY control access.  */
1875                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8005);
1876                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x0800);
1877
1878                 err = tg3_phy_write_and_check_testpat(tp, &do_phy_reset);
1879                 if (!err)
1880                         break;
1881         } while (--retries);
1882
1883         err = tg3_phy_reset_chanpat(tp);
1884         if (err)
1885                 return err;
1886
1887         tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8005);
1888         tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x0000);
1889
1890         tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8200);
1891         tg3_writephy(tp, 0x16, 0x0000);
1892
1893         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
1894             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
1895                 /* Set Extended packet length bit for jumbo frames */
1896                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4400);
1897         } else {
1898                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
1899         }
1900
1901         tg3_writephy(tp, MII_TG3_CTRL, phy9_orig);
1902
1903         if (!tg3_readphy(tp, MII_TG3_EXT_CTRL, &reg32)) {
1904                 reg32 &= ~0x3000;
1905                 tg3_writephy(tp, MII_TG3_EXT_CTRL, reg32);
1906         } else if (!err)
1907                 err = -EBUSY;
1908
1909         return err;
1910 }
1911
1912 /* This will reset the tigon3 PHY if there is no valid
1913  * link unless the FORCE argument is non-zero.
1914  */
1915 static int tg3_phy_reset(struct tg3 *tp)
1916 {
1917         u32 cpmuctrl;
1918         u32 phy_status;
1919         int err;
1920
1921         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
1922                 u32 val;
1923
1924                 val = tr32(GRC_MISC_CFG);
1925                 tw32_f(GRC_MISC_CFG, val & ~GRC_MISC_CFG_EPHY_IDDQ);
1926                 udelay(40);
1927         }
1928         err  = tg3_readphy(tp, MII_BMSR, &phy_status);
1929         err |= tg3_readphy(tp, MII_BMSR, &phy_status);
1930         if (err != 0)
1931                 return -EBUSY;
1932
1933         if (netif_running(tp->dev) && netif_carrier_ok(tp->dev)) {
1934                 netif_carrier_off(tp->dev);
1935                 tg3_link_report(tp);
1936         }
1937
1938         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
1939             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
1940             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
1941                 err = tg3_phy_reset_5703_4_5(tp);
1942                 if (err)
1943                         return err;
1944                 goto out;
1945         }
1946
1947         cpmuctrl = 0;
1948         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
1949             GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) {
1950                 cpmuctrl = tr32(TG3_CPMU_CTRL);
1951                 if (cpmuctrl & CPMU_CTRL_GPHY_10MB_RXONLY)
1952                         tw32(TG3_CPMU_CTRL,
1953                              cpmuctrl & ~CPMU_CTRL_GPHY_10MB_RXONLY);
1954         }
1955
1956         err = tg3_bmcr_reset(tp);
1957         if (err)
1958                 return err;
1959
1960         if (cpmuctrl & CPMU_CTRL_GPHY_10MB_RXONLY) {
1961                 u32 phy;
1962
1963                 phy = MII_TG3_DSP_EXP8_AEDW | MII_TG3_DSP_EXP8_REJ2MHz;
1964                 tg3_phydsp_write(tp, MII_TG3_DSP_EXP8, phy);
1965
1966                 tw32(TG3_CPMU_CTRL, cpmuctrl);
1967         }
1968
1969         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX ||
1970             GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5761_AX) {
1971                 u32 val;
1972
1973                 val = tr32(TG3_CPMU_LSPD_1000MB_CLK);
1974                 if ((val & CPMU_LSPD_1000MB_MACCLK_MASK) ==
1975                     CPMU_LSPD_1000MB_MACCLK_12_5) {
1976                         val &= ~CPMU_LSPD_1000MB_MACCLK_MASK;
1977                         udelay(40);
1978                         tw32_f(TG3_CPMU_LSPD_1000MB_CLK, val);
1979                 }
1980         }
1981
1982         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 &&
1983             (tp->tg3_flags2 & TG3_FLG2_MII_SERDES))
1984                 return 0;
1985
1986         tg3_phy_apply_otp(tp);
1987
1988         if (tp->tg3_flags3 & TG3_FLG3_PHY_ENABLE_APD)
1989                 tg3_phy_toggle_apd(tp, true);
1990         else
1991                 tg3_phy_toggle_apd(tp, false);
1992
1993 out:
1994         if (tp->tg3_flags2 & TG3_FLG2_PHY_ADC_BUG) {
1995                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
1996                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x201f);
1997                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x2aaa);
1998                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000a);
1999                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x0323);
2000                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
2001         }
2002         if (tp->tg3_flags2 & TG3_FLG2_PHY_5704_A0_BUG) {
2003                 tg3_writephy(tp, 0x1c, 0x8d68);
2004                 tg3_writephy(tp, 0x1c, 0x8d68);
2005         }
2006         if (tp->tg3_flags2 & TG3_FLG2_PHY_BER_BUG) {
2007                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
2008                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000a);
2009                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x310b);
2010                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x201f);
2011                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x9506);
2012                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x401f);
2013                 tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x14e2);
2014                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
2015         } else if (tp->tg3_flags2 & TG3_FLG2_PHY_JITTER_BUG) {
2016                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0c00);
2017                 tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000a);
2018                 if (tp->tg3_flags2 & TG3_FLG2_PHY_ADJUST_TRIM) {
2019                         tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x110b);
2020                         tg3_writephy(tp, MII_TG3_TEST1,
2021                                      MII_TG3_TEST1_TRIM_EN | 0x4);
2022                 } else
2023                         tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x010b);
2024                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0400);
2025         }
2026         /* Set Extended packet length bit (bit 14) on all chips that */
2027         /* support jumbo frames */
2028         if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5401) {
2029                 /* Cannot do read-modify-write on 5401 */
2030                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4c20);
2031         } else if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) {
2032                 u32 phy_reg;
2033
2034                 /* Set bit 14 with read-modify-write to preserve other bits */
2035                 if (!tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0007) &&
2036                     !tg3_readphy(tp, MII_TG3_AUX_CTRL, &phy_reg))
2037                         tg3_writephy(tp, MII_TG3_AUX_CTRL, phy_reg | 0x4000);
2038         }
2039
2040         /* Set phy register 0x10 bit 0 to high fifo elasticity to support
2041          * jumbo frames transmission.
2042          */
2043         if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) {
2044                 u32 phy_reg;
2045
2046                 if (!tg3_readphy(tp, MII_TG3_EXT_CTRL, &phy_reg))
2047                         tg3_writephy(tp, MII_TG3_EXT_CTRL,
2048                                      phy_reg | MII_TG3_EXT_CTRL_FIFO_ELASTIC);
2049         }
2050
2051         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
2052                 /* adjust output voltage */
2053                 tg3_writephy(tp, MII_TG3_FET_PTEST, 0x12);
2054         }
2055
2056         tg3_phy_toggle_automdix(tp, 1);
2057         tg3_phy_set_wirespeed(tp);
2058         return 0;
2059 }
2060
2061 static void tg3_frob_aux_power(struct tg3 *tp)
2062 {
2063         struct tg3 *tp_peer = tp;
2064
2065         /* The GPIOs do something completely different on 57765. */
2066         if ((tp->tg3_flags2 & TG3_FLG2_IS_NIC) == 0 ||
2067             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
2068                 return;
2069
2070         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
2071             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714 ||
2072             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717) {
2073                 struct net_device *dev_peer;
2074
2075                 dev_peer = pci_get_drvdata(tp->pdev_peer);
2076                 /* remove_one() may have been run on the peer. */
2077                 if (!dev_peer)
2078                         tp_peer = tp;
2079                 else
2080                         tp_peer = netdev_priv(dev_peer);
2081         }
2082
2083         if ((tp->tg3_flags & TG3_FLAG_WOL_ENABLE) != 0 ||
2084             (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) != 0 ||
2085             (tp_peer->tg3_flags & TG3_FLAG_WOL_ENABLE) != 0 ||
2086             (tp_peer->tg3_flags & TG3_FLAG_ENABLE_ASF) != 0) {
2087                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
2088                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
2089                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2090                                     (GRC_LCLCTRL_GPIO_OE0 |
2091                                      GRC_LCLCTRL_GPIO_OE1 |
2092                                      GRC_LCLCTRL_GPIO_OE2 |
2093                                      GRC_LCLCTRL_GPIO_OUTPUT0 |
2094                                      GRC_LCLCTRL_GPIO_OUTPUT1),
2095                                     100);
2096                 } else if (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5761 ||
2097                            tp->pdev->device == TG3PCI_DEVICE_TIGON3_5761S) {
2098                         /* The 5761 non-e device swaps GPIO 0 and GPIO 2. */
2099                         u32 grc_local_ctrl = GRC_LCLCTRL_GPIO_OE0 |
2100                                              GRC_LCLCTRL_GPIO_OE1 |
2101                                              GRC_LCLCTRL_GPIO_OE2 |
2102                                              GRC_LCLCTRL_GPIO_OUTPUT0 |
2103                                              GRC_LCLCTRL_GPIO_OUTPUT1 |
2104                                              tp->grc_local_ctrl;
2105                         tw32_wait_f(GRC_LOCAL_CTRL, grc_local_ctrl, 100);
2106
2107                         grc_local_ctrl |= GRC_LCLCTRL_GPIO_OUTPUT2;
2108                         tw32_wait_f(GRC_LOCAL_CTRL, grc_local_ctrl, 100);
2109
2110                         grc_local_ctrl &= ~GRC_LCLCTRL_GPIO_OUTPUT0;
2111                         tw32_wait_f(GRC_LOCAL_CTRL, grc_local_ctrl, 100);
2112                 } else {
2113                         u32 no_gpio2;
2114                         u32 grc_local_ctrl = 0;
2115
2116                         if (tp_peer != tp &&
2117                             (tp_peer->tg3_flags & TG3_FLAG_INIT_COMPLETE) != 0)
2118                                 return;
2119
2120                         /* Workaround to prevent overdrawing Amps. */
2121                         if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
2122                             ASIC_REV_5714) {
2123                                 grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE3;
2124                                 tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2125                                             grc_local_ctrl, 100);
2126                         }
2127
2128                         /* On 5753 and variants, GPIO2 cannot be used. */
2129                         no_gpio2 = tp->nic_sram_data_cfg &
2130                                     NIC_SRAM_DATA_CFG_NO_GPIO2;
2131
2132                         grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE0 |
2133                                          GRC_LCLCTRL_GPIO_OE1 |
2134                                          GRC_LCLCTRL_GPIO_OE2 |
2135                                          GRC_LCLCTRL_GPIO_OUTPUT1 |
2136                                          GRC_LCLCTRL_GPIO_OUTPUT2;
2137                         if (no_gpio2) {
2138                                 grc_local_ctrl &= ~(GRC_LCLCTRL_GPIO_OE2 |
2139                                                     GRC_LCLCTRL_GPIO_OUTPUT2);
2140                         }
2141                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2142                                                     grc_local_ctrl, 100);
2143
2144                         grc_local_ctrl |= GRC_LCLCTRL_GPIO_OUTPUT0;
2145
2146                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2147                                                     grc_local_ctrl, 100);
2148
2149                         if (!no_gpio2) {
2150                                 grc_local_ctrl &= ~GRC_LCLCTRL_GPIO_OUTPUT2;
2151                                 tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2152                                             grc_local_ctrl, 100);
2153                         }
2154                 }
2155         } else {
2156                 if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
2157                     GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701) {
2158                         if (tp_peer != tp &&
2159                             (tp_peer->tg3_flags & TG3_FLAG_INIT_COMPLETE) != 0)
2160                                 return;
2161
2162                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2163                                     (GRC_LCLCTRL_GPIO_OE1 |
2164                                      GRC_LCLCTRL_GPIO_OUTPUT1), 100);
2165
2166                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2167                                     GRC_LCLCTRL_GPIO_OE1, 100);
2168
2169                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl |
2170                                     (GRC_LCLCTRL_GPIO_OE1 |
2171                                      GRC_LCLCTRL_GPIO_OUTPUT1), 100);
2172                 }
2173         }
2174 }
2175
2176 static int tg3_5700_link_polarity(struct tg3 *tp, u32 speed)
2177 {
2178         if (tp->led_ctrl == LED_CTRL_MODE_PHY_2)
2179                 return 1;
2180         else if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5411) {
2181                 if (speed != SPEED_10)
2182                         return 1;
2183         } else if (speed == SPEED_10)
2184                 return 1;
2185
2186         return 0;
2187 }
2188
2189 static int tg3_setup_phy(struct tg3 *, int);
2190
2191 #define RESET_KIND_SHUTDOWN     0
2192 #define RESET_KIND_INIT         1
2193 #define RESET_KIND_SUSPEND      2
2194
2195 static void tg3_write_sig_post_reset(struct tg3 *, int);
2196 static int tg3_halt_cpu(struct tg3 *, u32);
2197
2198 static void tg3_power_down_phy(struct tg3 *tp, bool do_low_power)
2199 {
2200         u32 val;
2201
2202         if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) {
2203                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
2204                         u32 sg_dig_ctrl = tr32(SG_DIG_CTRL);
2205                         u32 serdes_cfg = tr32(MAC_SERDES_CFG);
2206
2207                         sg_dig_ctrl |=
2208                                 SG_DIG_USING_HW_AUTONEG | SG_DIG_SOFT_RESET;
2209                         tw32(SG_DIG_CTRL, sg_dig_ctrl);
2210                         tw32(MAC_SERDES_CFG, serdes_cfg | (1 << 15));
2211                 }
2212                 return;
2213         }
2214
2215         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
2216                 tg3_bmcr_reset(tp);
2217                 val = tr32(GRC_MISC_CFG);
2218                 tw32_f(GRC_MISC_CFG, val | GRC_MISC_CFG_EPHY_IDDQ);
2219                 udelay(40);
2220                 return;
2221         } else if (tp->tg3_flags3 & TG3_FLG3_PHY_IS_FET) {
2222                 u32 phytest;
2223                 if (!tg3_readphy(tp, MII_TG3_FET_TEST, &phytest)) {
2224                         u32 phy;
2225
2226                         tg3_writephy(tp, MII_ADVERTISE, 0);
2227                         tg3_writephy(tp, MII_BMCR,
2228                                      BMCR_ANENABLE | BMCR_ANRESTART);
2229
2230                         tg3_writephy(tp, MII_TG3_FET_TEST,
2231                                      phytest | MII_TG3_FET_SHADOW_EN);
2232                         if (!tg3_readphy(tp, MII_TG3_FET_SHDW_AUXMODE4, &phy)) {
2233                                 phy |= MII_TG3_FET_SHDW_AUXMODE4_SBPD;
2234                                 tg3_writephy(tp,
2235                                              MII_TG3_FET_SHDW_AUXMODE4,
2236                                              phy);
2237                         }
2238                         tg3_writephy(tp, MII_TG3_FET_TEST, phytest);
2239                 }
2240                 return;
2241         } else if (do_low_power) {
2242                 tg3_writephy(tp, MII_TG3_EXT_CTRL,
2243                              MII_TG3_EXT_CTRL_FORCE_LED_OFF);
2244
2245                 tg3_writephy(tp, MII_TG3_AUX_CTRL,
2246                              MII_TG3_AUXCTL_SHDWSEL_PWRCTL |
2247                              MII_TG3_AUXCTL_PCTL_100TX_LPWR |
2248                              MII_TG3_AUXCTL_PCTL_SPR_ISOLATE |
2249                              MII_TG3_AUXCTL_PCTL_VREG_11V);
2250         }
2251
2252         /* The PHY should not be powered down on some chips because
2253          * of bugs.
2254          */
2255         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
2256             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
2257             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780 &&
2258              (tp->tg3_flags2 & TG3_FLG2_MII_SERDES)))
2259                 return;
2260
2261         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX ||
2262             GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5761_AX) {
2263                 val = tr32(TG3_CPMU_LSPD_1000MB_CLK);
2264                 val &= ~CPMU_LSPD_1000MB_MACCLK_MASK;
2265                 val |= CPMU_LSPD_1000MB_MACCLK_12_5;
2266                 tw32_f(TG3_CPMU_LSPD_1000MB_CLK, val);
2267         }
2268
2269         tg3_writephy(tp, MII_BMCR, BMCR_PDOWN);
2270 }
2271
2272 /* tp->lock is held. */
2273 static int tg3_nvram_lock(struct tg3 *tp)
2274 {
2275         if (tp->tg3_flags & TG3_FLAG_NVRAM) {
2276                 int i;
2277
2278                 if (tp->nvram_lock_cnt == 0) {
2279                         tw32(NVRAM_SWARB, SWARB_REQ_SET1);
2280                         for (i = 0; i < 8000; i++) {
2281                                 if (tr32(NVRAM_SWARB) & SWARB_GNT1)
2282                                         break;
2283                                 udelay(20);
2284                         }
2285                         if (i == 8000) {
2286                                 tw32(NVRAM_SWARB, SWARB_REQ_CLR1);
2287                                 return -ENODEV;
2288                         }
2289                 }
2290                 tp->nvram_lock_cnt++;
2291         }
2292         return 0;
2293 }
2294
2295 /* tp->lock is held. */
2296 static void tg3_nvram_unlock(struct tg3 *tp)
2297 {
2298         if (tp->tg3_flags & TG3_FLAG_NVRAM) {
2299                 if (tp->nvram_lock_cnt > 0)
2300                         tp->nvram_lock_cnt--;
2301                 if (tp->nvram_lock_cnt == 0)
2302                         tw32_f(NVRAM_SWARB, SWARB_REQ_CLR1);
2303         }
2304 }
2305
2306 /* tp->lock is held. */
2307 static void tg3_enable_nvram_access(struct tg3 *tp)
2308 {
2309         if ((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
2310             !(tp->tg3_flags3 & TG3_FLG3_PROTECTED_NVRAM)) {
2311                 u32 nvaccess = tr32(NVRAM_ACCESS);
2312
2313                 tw32(NVRAM_ACCESS, nvaccess | ACCESS_ENABLE);
2314         }
2315 }
2316
2317 /* tp->lock is held. */
2318 static void tg3_disable_nvram_access(struct tg3 *tp)
2319 {
2320         if ((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
2321             !(tp->tg3_flags3 & TG3_FLG3_PROTECTED_NVRAM)) {
2322                 u32 nvaccess = tr32(NVRAM_ACCESS);
2323
2324                 tw32(NVRAM_ACCESS, nvaccess & ~ACCESS_ENABLE);
2325         }
2326 }
2327
2328 static int tg3_nvram_read_using_eeprom(struct tg3 *tp,
2329                                         u32 offset, u32 *val)
2330 {
2331         u32 tmp;
2332         int i;
2333
2334         if (offset > EEPROM_ADDR_ADDR_MASK || (offset % 4) != 0)
2335                 return -EINVAL;
2336
2337         tmp = tr32(GRC_EEPROM_ADDR) & ~(EEPROM_ADDR_ADDR_MASK |
2338                                         EEPROM_ADDR_DEVID_MASK |
2339                                         EEPROM_ADDR_READ);
2340         tw32(GRC_EEPROM_ADDR,
2341              tmp |
2342              (0 << EEPROM_ADDR_DEVID_SHIFT) |
2343              ((offset << EEPROM_ADDR_ADDR_SHIFT) &
2344               EEPROM_ADDR_ADDR_MASK) |
2345              EEPROM_ADDR_READ | EEPROM_ADDR_START);
2346
2347         for (i = 0; i < 1000; i++) {
2348                 tmp = tr32(GRC_EEPROM_ADDR);
2349
2350                 if (tmp & EEPROM_ADDR_COMPLETE)
2351                         break;
2352                 msleep(1);
2353         }
2354         if (!(tmp & EEPROM_ADDR_COMPLETE))
2355                 return -EBUSY;
2356
2357         tmp = tr32(GRC_EEPROM_DATA);
2358
2359         /*
2360          * The data will always be opposite the native endian
2361          * format.  Perform a blind byteswap to compensate.
2362          */
2363         *val = swab32(tmp);
2364
2365         return 0;
2366 }
2367
2368 #define NVRAM_CMD_TIMEOUT 10000
2369
2370 static int tg3_nvram_exec_cmd(struct tg3 *tp, u32 nvram_cmd)
2371 {
2372         int i;
2373
2374         tw32(NVRAM_CMD, nvram_cmd);
2375         for (i = 0; i < NVRAM_CMD_TIMEOUT; i++) {
2376                 udelay(10);
2377                 if (tr32(NVRAM_CMD) & NVRAM_CMD_DONE) {
2378                         udelay(10);
2379                         break;
2380                 }
2381         }
2382
2383         if (i == NVRAM_CMD_TIMEOUT)
2384                 return -EBUSY;
2385
2386         return 0;
2387 }
2388
2389 static u32 tg3_nvram_phys_addr(struct tg3 *tp, u32 addr)
2390 {
2391         if ((tp->tg3_flags & TG3_FLAG_NVRAM) &&
2392             (tp->tg3_flags & TG3_FLAG_NVRAM_BUFFERED) &&
2393             (tp->tg3_flags2 & TG3_FLG2_FLASH) &&
2394            !(tp->tg3_flags3 & TG3_FLG3_NO_NVRAM_ADDR_TRANS) &&
2395             (tp->nvram_jedecnum == JEDEC_ATMEL))
2396
2397                 addr = ((addr / tp->nvram_pagesize) <<
2398                         ATMEL_AT45DB0X1B_PAGE_POS) +
2399                        (addr % tp->nvram_pagesize);
2400
2401         return addr;
2402 }
2403
2404 static u32 tg3_nvram_logical_addr(struct tg3 *tp, u32 addr)
2405 {
2406         if ((tp->tg3_flags & TG3_FLAG_NVRAM) &&
2407             (tp->tg3_flags & TG3_FLAG_NVRAM_BUFFERED) &&
2408             (tp->tg3_flags2 & TG3_FLG2_FLASH) &&
2409            !(tp->tg3_flags3 & TG3_FLG3_NO_NVRAM_ADDR_TRANS) &&
2410             (tp->nvram_jedecnum == JEDEC_ATMEL))
2411
2412                 addr = ((addr >> ATMEL_AT45DB0X1B_PAGE_POS) *
2413                         tp->nvram_pagesize) +
2414                        (addr & ((1 << ATMEL_AT45DB0X1B_PAGE_POS) - 1));
2415
2416         return addr;
2417 }
2418
2419 /* NOTE: Data read in from NVRAM is byteswapped according to
2420  * the byteswapping settings for all other register accesses.
2421  * tg3 devices are BE devices, so on a BE machine, the data
2422  * returned will be exactly as it is seen in NVRAM.  On a LE
2423  * machine, the 32-bit value will be byteswapped.
2424  */
2425 static int tg3_nvram_read(struct tg3 *tp, u32 offset, u32 *val)
2426 {
2427         int ret;
2428
2429         if (!(tp->tg3_flags & TG3_FLAG_NVRAM))
2430                 return tg3_nvram_read_using_eeprom(tp, offset, val);
2431
2432         offset = tg3_nvram_phys_addr(tp, offset);
2433
2434         if (offset > NVRAM_ADDR_MSK)
2435                 return -EINVAL;
2436
2437         ret = tg3_nvram_lock(tp);
2438         if (ret)
2439                 return ret;
2440
2441         tg3_enable_nvram_access(tp);
2442
2443         tw32(NVRAM_ADDR, offset);
2444         ret = tg3_nvram_exec_cmd(tp, NVRAM_CMD_RD | NVRAM_CMD_GO |
2445                 NVRAM_CMD_FIRST | NVRAM_CMD_LAST | NVRAM_CMD_DONE);
2446
2447         if (ret == 0)
2448                 *val = tr32(NVRAM_RDDATA);
2449
2450         tg3_disable_nvram_access(tp);
2451
2452         tg3_nvram_unlock(tp);
2453
2454         return ret;
2455 }
2456
2457 /* Ensures NVRAM data is in bytestream format. */
2458 static int tg3_nvram_read_be32(struct tg3 *tp, u32 offset, __be32 *val)
2459 {
2460         u32 v;
2461         int res = tg3_nvram_read(tp, offset, &v);
2462         if (!res)
2463                 *val = cpu_to_be32(v);
2464         return res;
2465 }
2466
2467 /* tp->lock is held. */
2468 static void __tg3_set_mac_addr(struct tg3 *tp, int skip_mac_1)
2469 {
2470         u32 addr_high, addr_low;
2471         int i;
2472
2473         addr_high = ((tp->dev->dev_addr[0] << 8) |
2474                      tp->dev->dev_addr[1]);
2475         addr_low = ((tp->dev->dev_addr[2] << 24) |
2476                     (tp->dev->dev_addr[3] << 16) |
2477                     (tp->dev->dev_addr[4] <<  8) |
2478                     (tp->dev->dev_addr[5] <<  0));
2479         for (i = 0; i < 4; i++) {
2480                 if (i == 1 && skip_mac_1)
2481                         continue;
2482                 tw32(MAC_ADDR_0_HIGH + (i * 8), addr_high);
2483                 tw32(MAC_ADDR_0_LOW + (i * 8), addr_low);
2484         }
2485
2486         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
2487             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
2488                 for (i = 0; i < 12; i++) {
2489                         tw32(MAC_EXTADDR_0_HIGH + (i * 8), addr_high);
2490                         tw32(MAC_EXTADDR_0_LOW + (i * 8), addr_low);
2491                 }
2492         }
2493
2494         addr_high = (tp->dev->dev_addr[0] +
2495                      tp->dev->dev_addr[1] +
2496                      tp->dev->dev_addr[2] +
2497                      tp->dev->dev_addr[3] +
2498                      tp->dev->dev_addr[4] +
2499                      tp->dev->dev_addr[5]) &
2500                 TX_BACKOFF_SEED_MASK;
2501         tw32(MAC_TX_BACKOFF_SEED, addr_high);
2502 }
2503
2504 static int tg3_set_power_state(struct tg3 *tp, pci_power_t state)
2505 {
2506         u32 misc_host_ctrl;
2507         bool device_should_wake, do_low_power;
2508
2509         /* Make sure register accesses (indirect or otherwise)
2510          * will function correctly.
2511          */
2512         pci_write_config_dword(tp->pdev,
2513                                TG3PCI_MISC_HOST_CTRL,
2514                                tp->misc_host_ctrl);
2515
2516         switch (state) {
2517         case PCI_D0:
2518                 pci_enable_wake(tp->pdev, state, false);
2519                 pci_set_power_state(tp->pdev, PCI_D0);
2520
2521                 /* Switch out of Vaux if it is a NIC */
2522                 if (tp->tg3_flags2 & TG3_FLG2_IS_NIC)
2523                         tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl, 100);
2524
2525                 return 0;
2526
2527         case PCI_D1:
2528         case PCI_D2:
2529         case PCI_D3hot:
2530                 break;
2531
2532         default:
2533                 netdev_err(tp->dev, "Invalid power state (D%d) requested\n",
2534                            state);
2535                 return -EINVAL;
2536         }
2537
2538         /* Restore the CLKREQ setting. */
2539         if (tp->tg3_flags3 & TG3_FLG3_CLKREQ_BUG) {
2540                 u16 lnkctl;
2541
2542                 pci_read_config_word(tp->pdev,
2543                                      tp->pcie_cap + PCI_EXP_LNKCTL,
2544                                      &lnkctl);
2545                 lnkctl |= PCI_EXP_LNKCTL_CLKREQ_EN;
2546                 pci_write_config_word(tp->pdev,
2547                                       tp->pcie_cap + PCI_EXP_LNKCTL,
2548                                       lnkctl);
2549         }
2550
2551         misc_host_ctrl = tr32(TG3PCI_MISC_HOST_CTRL);
2552         tw32(TG3PCI_MISC_HOST_CTRL,
2553              misc_host_ctrl | MISC_HOST_CTRL_MASK_PCI_INT);
2554
2555         device_should_wake = pci_pme_capable(tp->pdev, state) &&
2556                              device_may_wakeup(&tp->pdev->dev) &&
2557                              (tp->tg3_flags & TG3_FLAG_WOL_ENABLE);
2558
2559         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
2560                 do_low_power = false;
2561                 if ((tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED) &&
2562                     !tp->link_config.phy_is_low_power) {
2563                         struct phy_device *phydev;
2564                         u32 phyid, advertising;
2565
2566                         phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
2567
2568                         tp->link_config.phy_is_low_power = 1;
2569
2570                         tp->link_config.orig_speed = phydev->speed;
2571                         tp->link_config.orig_duplex = phydev->duplex;
2572                         tp->link_config.orig_autoneg = phydev->autoneg;
2573                         tp->link_config.orig_advertising = phydev->advertising;
2574
2575                         advertising = ADVERTISED_TP |
2576                                       ADVERTISED_Pause |
2577                                       ADVERTISED_Autoneg |
2578                                       ADVERTISED_10baseT_Half;
2579
2580                         if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) ||
2581                             device_should_wake) {
2582                                 if (tp->tg3_flags & TG3_FLAG_WOL_SPEED_100MB)
2583                                         advertising |=
2584                                                 ADVERTISED_100baseT_Half |
2585                                                 ADVERTISED_100baseT_Full |
2586                                                 ADVERTISED_10baseT_Full;
2587                                 else
2588                                         advertising |= ADVERTISED_10baseT_Full;
2589                         }
2590
2591                         phydev->advertising = advertising;
2592
2593                         phy_start_aneg(phydev);
2594
2595                         phyid = phydev->drv->phy_id & phydev->drv->phy_id_mask;
2596                         if (phyid != PHY_ID_BCMAC131) {
2597                                 phyid &= PHY_BCM_OUI_MASK;
2598                                 if (phyid == PHY_BCM_OUI_1 ||
2599                                     phyid == PHY_BCM_OUI_2 ||
2600                                     phyid == PHY_BCM_OUI_3)
2601                                         do_low_power = true;
2602                         }
2603                 }
2604         } else {
2605                 do_low_power = true;
2606
2607                 if (tp->link_config.phy_is_low_power == 0) {
2608                         tp->link_config.phy_is_low_power = 1;
2609                         tp->link_config.orig_speed = tp->link_config.speed;
2610                         tp->link_config.orig_duplex = tp->link_config.duplex;
2611                         tp->link_config.orig_autoneg = tp->link_config.autoneg;
2612                 }
2613
2614                 if (!(tp->tg3_flags2 & TG3_FLG2_ANY_SERDES)) {
2615                         tp->link_config.speed = SPEED_10;
2616                         tp->link_config.duplex = DUPLEX_HALF;
2617                         tp->link_config.autoneg = AUTONEG_ENABLE;
2618                         tg3_setup_phy(tp, 0);
2619                 }
2620         }
2621
2622         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
2623                 u32 val;
2624
2625                 val = tr32(GRC_VCPU_EXT_CTRL);
2626                 tw32(GRC_VCPU_EXT_CTRL, val | GRC_VCPU_EXT_CTRL_DISABLE_WOL);
2627         } else if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)) {
2628                 int i;
2629                 u32 val;
2630
2631                 for (i = 0; i < 200; i++) {
2632                         tg3_read_mem(tp, NIC_SRAM_FW_ASF_STATUS_MBOX, &val);
2633                         if (val == ~NIC_SRAM_FIRMWARE_MBOX_MAGIC1)
2634                                 break;
2635                         msleep(1);
2636                 }
2637         }
2638         if (tp->tg3_flags & TG3_FLAG_WOL_CAP)
2639                 tg3_write_mem(tp, NIC_SRAM_WOL_MBOX, WOL_SIGNATURE |
2640                                                      WOL_DRV_STATE_SHUTDOWN |
2641                                                      WOL_DRV_WOL |
2642                                                      WOL_SET_MAGIC_PKT);
2643
2644         if (device_should_wake) {
2645                 u32 mac_mode;
2646
2647                 if (!(tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)) {
2648                         if (do_low_power) {
2649                                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x5a);
2650                                 udelay(40);
2651                         }
2652
2653                         if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES)
2654                                 mac_mode = MAC_MODE_PORT_MODE_GMII;
2655                         else
2656                                 mac_mode = MAC_MODE_PORT_MODE_MII;
2657
2658                         mac_mode |= tp->mac_mode & MAC_MODE_LINK_POLARITY;
2659                         if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
2660                             ASIC_REV_5700) {
2661                                 u32 speed = (tp->tg3_flags &
2662                                              TG3_FLAG_WOL_SPEED_100MB) ?
2663                                              SPEED_100 : SPEED_10;
2664                                 if (tg3_5700_link_polarity(tp, speed))
2665                                         mac_mode |= MAC_MODE_LINK_POLARITY;
2666                                 else
2667                                         mac_mode &= ~MAC_MODE_LINK_POLARITY;
2668                         }
2669                 } else {
2670                         mac_mode = MAC_MODE_PORT_MODE_TBI;
2671                 }
2672
2673                 if (!(tp->tg3_flags2 & TG3_FLG2_5750_PLUS))
2674                         tw32(MAC_LED_CTRL, tp->led_ctrl);
2675
2676                 mac_mode |= MAC_MODE_MAGIC_PKT_ENABLE;
2677                 if (((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
2678                     !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) &&
2679                     ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) ||
2680                      (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)))
2681                         mac_mode |= MAC_MODE_KEEP_FRAME_IN_WOL;
2682
2683                 if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
2684                         mac_mode |= tp->mac_mode &
2685                                     (MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN);
2686                         if (mac_mode & MAC_MODE_APE_TX_EN)
2687                                 mac_mode |= MAC_MODE_TDE_ENABLE;
2688                 }
2689
2690                 tw32_f(MAC_MODE, mac_mode);
2691                 udelay(100);
2692
2693                 tw32_f(MAC_RX_MODE, RX_MODE_ENABLE);
2694                 udelay(10);
2695         }
2696
2697         if (!(tp->tg3_flags & TG3_FLAG_WOL_SPEED_100MB) &&
2698             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
2699              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)) {
2700                 u32 base_val;
2701
2702                 base_val = tp->pci_clock_ctrl;
2703                 base_val |= (CLOCK_CTRL_RXCLK_DISABLE |
2704                              CLOCK_CTRL_TXCLK_DISABLE);
2705
2706                 tw32_wait_f(TG3PCI_CLOCK_CTRL, base_val | CLOCK_CTRL_ALTCLK |
2707                             CLOCK_CTRL_PWRDOWN_PLL133, 40);
2708         } else if ((tp->tg3_flags2 & TG3_FLG2_5780_CLASS) ||
2709                    (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) ||
2710                    (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)) {
2711                 /* do nothing */
2712         } else if (!((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
2713                      (tp->tg3_flags & TG3_FLAG_ENABLE_ASF))) {
2714                 u32 newbits1, newbits2;
2715
2716                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
2717                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
2718                         newbits1 = (CLOCK_CTRL_RXCLK_DISABLE |
2719                                     CLOCK_CTRL_TXCLK_DISABLE |
2720                                     CLOCK_CTRL_ALTCLK);
2721                         newbits2 = newbits1 | CLOCK_CTRL_44MHZ_CORE;
2722                 } else if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
2723                         newbits1 = CLOCK_CTRL_625_CORE;
2724                         newbits2 = newbits1 | CLOCK_CTRL_ALTCLK;
2725                 } else {
2726                         newbits1 = CLOCK_CTRL_ALTCLK;
2727                         newbits2 = newbits1 | CLOCK_CTRL_44MHZ_CORE;
2728                 }
2729
2730                 tw32_wait_f(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl | newbits1,
2731                             40);
2732
2733                 tw32_wait_f(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl | newbits2,
2734                             40);
2735
2736                 if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
2737                         u32 newbits3;
2738
2739                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
2740                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
2741                                 newbits3 = (CLOCK_CTRL_RXCLK_DISABLE |
2742                                             CLOCK_CTRL_TXCLK_DISABLE |
2743                                             CLOCK_CTRL_44MHZ_CORE);
2744                         } else {
2745                                 newbits3 = CLOCK_CTRL_44MHZ_CORE;
2746                         }
2747
2748                         tw32_wait_f(TG3PCI_CLOCK_CTRL,
2749                                     tp->pci_clock_ctrl | newbits3, 40);
2750                 }
2751         }
2752
2753         if (!(device_should_wake) &&
2754             !(tp->tg3_flags & TG3_FLAG_ENABLE_ASF))
2755                 tg3_power_down_phy(tp, do_low_power);
2756
2757         tg3_frob_aux_power(tp);
2758
2759         /* Workaround for unstable PLL clock */
2760         if ((GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_AX) ||
2761             (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_BX)) {
2762                 u32 val = tr32(0x7d00);
2763
2764                 val &= ~((1 << 16) | (1 << 4) | (1 << 2) | (1 << 1) | 1);
2765                 tw32(0x7d00, val);
2766                 if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)) {
2767                         int err;
2768
2769                         err = tg3_nvram_lock(tp);
2770                         tg3_halt_cpu(tp, RX_CPU_BASE);
2771                         if (!err)
2772                                 tg3_nvram_unlock(tp);
2773                 }
2774         }
2775
2776         tg3_write_sig_post_reset(tp, RESET_KIND_SHUTDOWN);
2777
2778         if (device_should_wake)
2779                 pci_enable_wake(tp->pdev, state, true);
2780
2781         /* Finally, set the new power state. */
2782         pci_set_power_state(tp->pdev, state);
2783
2784         return 0;
2785 }
2786
2787 static void tg3_aux_stat_to_speed_duplex(struct tg3 *tp, u32 val, u16 *speed, u8 *duplex)
2788 {
2789         switch (val & MII_TG3_AUX_STAT_SPDMASK) {
2790         case MII_TG3_AUX_STAT_10HALF:
2791                 *speed = SPEED_10;
2792                 *duplex = DUPLEX_HALF;
2793                 break;
2794
2795         case MII_TG3_AUX_STAT_10FULL:
2796                 *speed = SPEED_10;
2797                 *duplex = DUPLEX_FULL;
2798                 break;
2799
2800         case MII_TG3_AUX_STAT_100HALF:
2801                 *speed = SPEED_100;
2802                 *duplex = DUPLEX_HALF;
2803                 break;
2804
2805         case MII_TG3_AUX_STAT_100FULL:
2806                 *speed = SPEED_100;
2807                 *duplex = DUPLEX_FULL;
2808                 break;
2809
2810         case MII_TG3_AUX_STAT_1000HALF:
2811                 *speed = SPEED_1000;
2812                 *duplex = DUPLEX_HALF;
2813                 break;
2814
2815         case MII_TG3_AUX_STAT_1000FULL:
2816                 *speed = SPEED_1000;
2817                 *duplex = DUPLEX_FULL;
2818                 break;
2819
2820         default:
2821                 if (tp->tg3_flags3 & TG3_FLG3_PHY_IS_FET) {
2822                         *speed = (val & MII_TG3_AUX_STAT_100) ? SPEED_100 :
2823                                  SPEED_10;
2824                         *duplex = (val & MII_TG3_AUX_STAT_FULL) ? DUPLEX_FULL :
2825                                   DUPLEX_HALF;
2826                         break;
2827                 }
2828                 *speed = SPEED_INVALID;
2829                 *duplex = DUPLEX_INVALID;
2830                 break;
2831         }
2832 }
2833
2834 static void tg3_phy_copper_begin(struct tg3 *tp)
2835 {
2836         u32 new_adv;
2837         int i;
2838
2839         if (tp->link_config.phy_is_low_power) {
2840                 /* Entering low power mode.  Disable gigabit and
2841                  * 100baseT advertisements.
2842                  */
2843                 tg3_writephy(tp, MII_TG3_CTRL, 0);
2844
2845                 new_adv = (ADVERTISE_10HALF | ADVERTISE_10FULL |
2846                            ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
2847                 if (tp->tg3_flags & TG3_FLAG_WOL_SPEED_100MB)
2848                         new_adv |= (ADVERTISE_100HALF | ADVERTISE_100FULL);
2849
2850                 tg3_writephy(tp, MII_ADVERTISE, new_adv);
2851         } else if (tp->link_config.speed == SPEED_INVALID) {
2852                 if (tp->tg3_flags & TG3_FLAG_10_100_ONLY)
2853                         tp->link_config.advertising &=
2854                                 ~(ADVERTISED_1000baseT_Half |
2855                                   ADVERTISED_1000baseT_Full);
2856
2857                 new_adv = ADVERTISE_CSMA;
2858                 if (tp->link_config.advertising & ADVERTISED_10baseT_Half)
2859                         new_adv |= ADVERTISE_10HALF;
2860                 if (tp->link_config.advertising & ADVERTISED_10baseT_Full)
2861                         new_adv |= ADVERTISE_10FULL;
2862                 if (tp->link_config.advertising & ADVERTISED_100baseT_Half)
2863                         new_adv |= ADVERTISE_100HALF;
2864                 if (tp->link_config.advertising & ADVERTISED_100baseT_Full)
2865                         new_adv |= ADVERTISE_100FULL;
2866
2867                 new_adv |= tg3_advert_flowctrl_1000T(tp->link_config.flowctrl);
2868
2869                 tg3_writephy(tp, MII_ADVERTISE, new_adv);
2870
2871                 if (tp->link_config.advertising &
2872                     (ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full)) {
2873                         new_adv = 0;
2874                         if (tp->link_config.advertising & ADVERTISED_1000baseT_Half)
2875                                 new_adv |= MII_TG3_CTRL_ADV_1000_HALF;
2876                         if (tp->link_config.advertising & ADVERTISED_1000baseT_Full)
2877                                 new_adv |= MII_TG3_CTRL_ADV_1000_FULL;
2878                         if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY) &&
2879                             (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
2880                              tp->pci_chip_rev_id == CHIPREV_ID_5701_B0))
2881                                 new_adv |= (MII_TG3_CTRL_AS_MASTER |
2882                                             MII_TG3_CTRL_ENABLE_AS_MASTER);
2883                         tg3_writephy(tp, MII_TG3_CTRL, new_adv);
2884                 } else {
2885                         tg3_writephy(tp, MII_TG3_CTRL, 0);
2886                 }
2887         } else {
2888                 new_adv = tg3_advert_flowctrl_1000T(tp->link_config.flowctrl);
2889                 new_adv |= ADVERTISE_CSMA;
2890
2891                 /* Asking for a specific link mode. */
2892                 if (tp->link_config.speed == SPEED_1000) {
2893                         tg3_writephy(tp, MII_ADVERTISE, new_adv);
2894
2895                         if (tp->link_config.duplex == DUPLEX_FULL)
2896                                 new_adv = MII_TG3_CTRL_ADV_1000_FULL;
2897                         else
2898                                 new_adv = MII_TG3_CTRL_ADV_1000_HALF;
2899                         if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
2900                             tp->pci_chip_rev_id == CHIPREV_ID_5701_B0)
2901                                 new_adv |= (MII_TG3_CTRL_AS_MASTER |
2902                                             MII_TG3_CTRL_ENABLE_AS_MASTER);
2903                 } else {
2904                         if (tp->link_config.speed == SPEED_100) {
2905                                 if (tp->link_config.duplex == DUPLEX_FULL)
2906                                         new_adv |= ADVERTISE_100FULL;
2907                                 else
2908                                         new_adv |= ADVERTISE_100HALF;
2909                         } else {
2910                                 if (tp->link_config.duplex == DUPLEX_FULL)
2911                                         new_adv |= ADVERTISE_10FULL;
2912                                 else
2913                                         new_adv |= ADVERTISE_10HALF;
2914                         }
2915                         tg3_writephy(tp, MII_ADVERTISE, new_adv);
2916
2917                         new_adv = 0;
2918                 }
2919
2920                 tg3_writephy(tp, MII_TG3_CTRL, new_adv);
2921         }
2922
2923         if (tp->link_config.autoneg == AUTONEG_DISABLE &&
2924             tp->link_config.speed != SPEED_INVALID) {
2925                 u32 bmcr, orig_bmcr;
2926
2927                 tp->link_config.active_speed = tp->link_config.speed;
2928                 tp->link_config.active_duplex = tp->link_config.duplex;
2929
2930                 bmcr = 0;
2931                 switch (tp->link_config.speed) {
2932                 default:
2933                 case SPEED_10:
2934                         break;
2935
2936                 case SPEED_100:
2937                         bmcr |= BMCR_SPEED100;
2938                         break;
2939
2940                 case SPEED_1000:
2941                         bmcr |= TG3_BMCR_SPEED1000;
2942                         break;
2943                 }
2944
2945                 if (tp->link_config.duplex == DUPLEX_FULL)
2946                         bmcr |= BMCR_FULLDPLX;
2947
2948                 if (!tg3_readphy(tp, MII_BMCR, &orig_bmcr) &&
2949                     (bmcr != orig_bmcr)) {
2950                         tg3_writephy(tp, MII_BMCR, BMCR_LOOPBACK);
2951                         for (i = 0; i < 1500; i++) {
2952                                 u32 tmp;
2953
2954                                 udelay(10);
2955                                 if (tg3_readphy(tp, MII_BMSR, &tmp) ||
2956                                     tg3_readphy(tp, MII_BMSR, &tmp))
2957                                         continue;
2958                                 if (!(tmp & BMSR_LSTATUS)) {
2959                                         udelay(40);
2960                                         break;
2961                                 }
2962                         }
2963                         tg3_writephy(tp, MII_BMCR, bmcr);
2964                         udelay(40);
2965                 }
2966         } else {
2967                 tg3_writephy(tp, MII_BMCR,
2968                              BMCR_ANENABLE | BMCR_ANRESTART);
2969         }
2970 }
2971
2972 static int tg3_init_5401phy_dsp(struct tg3 *tp)
2973 {
2974         int err;
2975
2976         /* Turn off tap power management. */
2977         /* Set Extended packet length bit */
2978         err  = tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4c20);
2979
2980         err |= tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x0012);
2981         err |= tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x1804);
2982
2983         err |= tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x0013);
2984         err |= tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x1204);
2985
2986         err |= tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8006);
2987         err |= tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x0132);
2988
2989         err |= tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8006);
2990         err |= tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x0232);
2991
2992         err |= tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x201f);
2993         err |= tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x0a20);
2994
2995         udelay(40);
2996
2997         return err;
2998 }
2999
3000 static int tg3_copper_is_advertising_all(struct tg3 *tp, u32 mask)
3001 {
3002         u32 adv_reg, all_mask = 0;
3003
3004         if (mask & ADVERTISED_10baseT_Half)
3005                 all_mask |= ADVERTISE_10HALF;
3006         if (mask & ADVERTISED_10baseT_Full)
3007                 all_mask |= ADVERTISE_10FULL;
3008         if (mask & ADVERTISED_100baseT_Half)
3009                 all_mask |= ADVERTISE_100HALF;
3010         if (mask & ADVERTISED_100baseT_Full)
3011                 all_mask |= ADVERTISE_100FULL;
3012
3013         if (tg3_readphy(tp, MII_ADVERTISE, &adv_reg))
3014                 return 0;
3015
3016         if ((adv_reg & all_mask) != all_mask)
3017                 return 0;
3018         if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY)) {
3019                 u32 tg3_ctrl;
3020
3021                 all_mask = 0;
3022                 if (mask & ADVERTISED_1000baseT_Half)
3023                         all_mask |= ADVERTISE_1000HALF;
3024                 if (mask & ADVERTISED_1000baseT_Full)
3025                         all_mask |= ADVERTISE_1000FULL;
3026
3027                 if (tg3_readphy(tp, MII_TG3_CTRL, &tg3_ctrl))
3028                         return 0;
3029
3030                 if ((tg3_ctrl & all_mask) != all_mask)
3031                         return 0;
3032         }
3033         return 1;
3034 }
3035
3036 static int tg3_adv_1000T_flowctrl_ok(struct tg3 *tp, u32 *lcladv, u32 *rmtadv)
3037 {
3038         u32 curadv, reqadv;
3039
3040         if (tg3_readphy(tp, MII_ADVERTISE, lcladv))
3041                 return 1;
3042
3043         curadv = *lcladv & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
3044         reqadv = tg3_advert_flowctrl_1000T(tp->link_config.flowctrl);
3045
3046         if (tp->link_config.active_duplex == DUPLEX_FULL) {
3047                 if (curadv != reqadv)
3048                         return 0;
3049
3050                 if (tp->tg3_flags & TG3_FLAG_PAUSE_AUTONEG)
3051                         tg3_readphy(tp, MII_LPA, rmtadv);
3052         } else {
3053                 /* Reprogram the advertisement register, even if it
3054                  * does not affect the current link.  If the link
3055                  * gets renegotiated in the future, we can save an
3056                  * additional renegotiation cycle by advertising
3057                  * it correctly in the first place.
3058                  */
3059                 if (curadv != reqadv) {
3060                         *lcladv &= ~(ADVERTISE_PAUSE_CAP |
3061                                      ADVERTISE_PAUSE_ASYM);
3062                         tg3_writephy(tp, MII_ADVERTISE, *lcladv | reqadv);
3063                 }
3064         }
3065
3066         return 1;
3067 }
3068
3069 static int tg3_setup_copper_phy(struct tg3 *tp, int force_reset)
3070 {
3071         int current_link_up;
3072         u32 bmsr, dummy;
3073         u32 lcl_adv, rmt_adv;
3074         u16 current_speed;
3075         u8 current_duplex;
3076         int i, err;
3077
3078         tw32(MAC_EVENT, 0);
3079
3080         tw32_f(MAC_STATUS,
3081              (MAC_STATUS_SYNC_CHANGED |
3082               MAC_STATUS_CFG_CHANGED |
3083               MAC_STATUS_MI_COMPLETION |
3084               MAC_STATUS_LNKSTATE_CHANGED));
3085         udelay(40);
3086
3087         if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
3088                 tw32_f(MAC_MI_MODE,
3089                      (tp->mi_mode & ~MAC_MI_MODE_AUTO_POLL));
3090                 udelay(80);
3091         }
3092
3093         tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x02);
3094
3095         /* Some third-party PHYs need to be reset on link going
3096          * down.
3097          */
3098         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
3099              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
3100              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) &&
3101             netif_carrier_ok(tp->dev)) {
3102                 tg3_readphy(tp, MII_BMSR, &bmsr);
3103                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
3104                     !(bmsr & BMSR_LSTATUS))
3105                         force_reset = 1;
3106         }
3107         if (force_reset)
3108                 tg3_phy_reset(tp);
3109
3110         if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5401) {
3111                 tg3_readphy(tp, MII_BMSR, &bmsr);
3112                 if (tg3_readphy(tp, MII_BMSR, &bmsr) ||
3113                     !(tp->tg3_flags & TG3_FLAG_INIT_COMPLETE))
3114                         bmsr = 0;
3115
3116                 if (!(bmsr & BMSR_LSTATUS)) {
3117                         err = tg3_init_5401phy_dsp(tp);
3118                         if (err)
3119                                 return err;
3120
3121                         tg3_readphy(tp, MII_BMSR, &bmsr);
3122                         for (i = 0; i < 1000; i++) {
3123                                 udelay(10);
3124                                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
3125                                     (bmsr & BMSR_LSTATUS)) {
3126                                         udelay(40);
3127                                         break;
3128                                 }
3129                         }
3130
3131                         if ((tp->phy_id & TG3_PHY_ID_REV_MASK) ==
3132                             TG3_PHY_REV_BCM5401_B0 &&
3133                             !(bmsr & BMSR_LSTATUS) &&
3134                             tp->link_config.active_speed == SPEED_1000) {
3135                                 err = tg3_phy_reset(tp);
3136                                 if (!err)
3137                                         err = tg3_init_5401phy_dsp(tp);
3138                                 if (err)
3139                                         return err;
3140                         }
3141                 }
3142         } else if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
3143                    tp->pci_chip_rev_id == CHIPREV_ID_5701_B0) {
3144                 /* 5701 {A0,B0} CRC bug workaround */
3145                 tg3_writephy(tp, 0x15, 0x0a75);
3146                 tg3_writephy(tp, 0x1c, 0x8c68);
3147                 tg3_writephy(tp, 0x1c, 0x8d68);
3148                 tg3_writephy(tp, 0x1c, 0x8c68);
3149         }
3150
3151         /* Clear pending interrupts... */
3152         tg3_readphy(tp, MII_TG3_ISTAT, &dummy);
3153         tg3_readphy(tp, MII_TG3_ISTAT, &dummy);
3154
3155         if (tp->tg3_flags & TG3_FLAG_USE_MI_INTERRUPT)
3156                 tg3_writephy(tp, MII_TG3_IMASK, ~MII_TG3_INT_LINKCHG);
3157         else if (!(tp->tg3_flags3 & TG3_FLG3_PHY_IS_FET))
3158                 tg3_writephy(tp, MII_TG3_IMASK, ~0);
3159
3160         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
3161             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
3162                 if (tp->led_ctrl == LED_CTRL_MODE_PHY_1)
3163                         tg3_writephy(tp, MII_TG3_EXT_CTRL,
3164                                      MII_TG3_EXT_CTRL_LNK3_LED_MODE);
3165                 else
3166                         tg3_writephy(tp, MII_TG3_EXT_CTRL, 0);
3167         }
3168
3169         current_link_up = 0;
3170         current_speed = SPEED_INVALID;
3171         current_duplex = DUPLEX_INVALID;
3172
3173         if (tp->tg3_flags2 & TG3_FLG2_CAPACITIVE_COUPLING) {
3174                 u32 val;
3175
3176                 tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4007);
3177                 tg3_readphy(tp, MII_TG3_AUX_CTRL, &val);
3178                 if (!(val & (1 << 10))) {
3179                         val |= (1 << 10);
3180                         tg3_writephy(tp, MII_TG3_AUX_CTRL, val);
3181                         goto relink;
3182                 }
3183         }
3184
3185         bmsr = 0;
3186         for (i = 0; i < 100; i++) {
3187                 tg3_readphy(tp, MII_BMSR, &bmsr);
3188                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
3189                     (bmsr & BMSR_LSTATUS))
3190                         break;
3191                 udelay(40);
3192         }
3193
3194         if (bmsr & BMSR_LSTATUS) {
3195                 u32 aux_stat, bmcr;
3196
3197                 tg3_readphy(tp, MII_TG3_AUX_STAT, &aux_stat);
3198                 for (i = 0; i < 2000; i++) {
3199                         udelay(10);
3200                         if (!tg3_readphy(tp, MII_TG3_AUX_STAT, &aux_stat) &&
3201                             aux_stat)
3202                                 break;
3203                 }
3204
3205                 tg3_aux_stat_to_speed_duplex(tp, aux_stat,
3206                                              &current_speed,
3207                                              &current_duplex);
3208
3209                 bmcr = 0;
3210                 for (i = 0; i < 200; i++) {
3211                         tg3_readphy(tp, MII_BMCR, &bmcr);
3212                         if (tg3_readphy(tp, MII_BMCR, &bmcr))
3213                                 continue;
3214                         if (bmcr && bmcr != 0x7fff)
3215                                 break;
3216                         udelay(10);
3217                 }
3218
3219                 lcl_adv = 0;
3220                 rmt_adv = 0;
3221
3222                 tp->link_config.active_speed = current_speed;
3223                 tp->link_config.active_duplex = current_duplex;
3224
3225                 if (tp->link_config.autoneg == AUTONEG_ENABLE) {
3226                         if ((bmcr & BMCR_ANENABLE) &&
3227                             tg3_copper_is_advertising_all(tp,
3228                                                 tp->link_config.advertising)) {
3229                                 if (tg3_adv_1000T_flowctrl_ok(tp, &lcl_adv,
3230                                                                   &rmt_adv))
3231                                         current_link_up = 1;
3232                         }
3233                 } else {
3234                         if (!(bmcr & BMCR_ANENABLE) &&
3235                             tp->link_config.speed == current_speed &&
3236                             tp->link_config.duplex == current_duplex &&
3237                             tp->link_config.flowctrl ==
3238                             tp->link_config.active_flowctrl) {
3239                                 current_link_up = 1;
3240                         }
3241                 }
3242
3243                 if (current_link_up == 1 &&
3244                     tp->link_config.active_duplex == DUPLEX_FULL)
3245                         tg3_setup_flow_control(tp, lcl_adv, rmt_adv);
3246         }
3247
3248 relink:
3249         if (current_link_up == 0 || tp->link_config.phy_is_low_power) {
3250                 u32 tmp;
3251
3252                 tg3_phy_copper_begin(tp);
3253
3254                 tg3_readphy(tp, MII_BMSR, &tmp);
3255                 if (!tg3_readphy(tp, MII_BMSR, &tmp) &&
3256                     (tmp & BMSR_LSTATUS))
3257                         current_link_up = 1;
3258         }
3259
3260         tp->mac_mode &= ~MAC_MODE_PORT_MODE_MASK;
3261         if (current_link_up == 1) {
3262                 if (tp->link_config.active_speed == SPEED_100 ||
3263                     tp->link_config.active_speed == SPEED_10)
3264                         tp->mac_mode |= MAC_MODE_PORT_MODE_MII;
3265                 else
3266                         tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
3267         } else if (tp->tg3_flags3 & TG3_FLG3_PHY_IS_FET)
3268                 tp->mac_mode |= MAC_MODE_PORT_MODE_MII;
3269         else
3270                 tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
3271
3272         tp->mac_mode &= ~MAC_MODE_HALF_DUPLEX;
3273         if (tp->link_config.active_duplex == DUPLEX_HALF)
3274                 tp->mac_mode |= MAC_MODE_HALF_DUPLEX;
3275
3276         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) {
3277                 if (current_link_up == 1 &&
3278                     tg3_5700_link_polarity(tp, tp->link_config.active_speed))
3279                         tp->mac_mode |= MAC_MODE_LINK_POLARITY;
3280                 else
3281                         tp->mac_mode &= ~MAC_MODE_LINK_POLARITY;
3282         }
3283
3284         /* ??? Without this setting Netgear GA302T PHY does not
3285          * ??? send/receive packets...
3286          */
3287         if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5411 &&
3288             tp->pci_chip_rev_id == CHIPREV_ID_5700_ALTIMA) {
3289                 tp->mi_mode |= MAC_MI_MODE_AUTO_POLL;
3290                 tw32_f(MAC_MI_MODE, tp->mi_mode);
3291                 udelay(80);
3292         }
3293
3294         tw32_f(MAC_MODE, tp->mac_mode);
3295         udelay(40);
3296
3297         if (tp->tg3_flags & TG3_FLAG_USE_LINKCHG_REG) {
3298                 /* Polled via timer. */
3299                 tw32_f(MAC_EVENT, 0);
3300         } else {
3301                 tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
3302         }
3303         udelay(40);
3304
3305         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 &&
3306             current_link_up == 1 &&
3307             tp->link_config.active_speed == SPEED_1000 &&
3308             ((tp->tg3_flags & TG3_FLAG_PCIX_MODE) ||
3309              (tp->tg3_flags & TG3_FLAG_PCI_HIGH_SPEED))) {
3310                 udelay(120);
3311                 tw32_f(MAC_STATUS,
3312                      (MAC_STATUS_SYNC_CHANGED |
3313                       MAC_STATUS_CFG_CHANGED));
3314                 udelay(40);
3315                 tg3_write_mem(tp,
3316                               NIC_SRAM_FIRMWARE_MBOX,
3317                               NIC_SRAM_FIRMWARE_MBOX_MAGIC2);
3318         }
3319
3320         /* Prevent send BD corruption. */
3321         if (tp->tg3_flags3 & TG3_FLG3_CLKREQ_BUG) {
3322                 u16 oldlnkctl, newlnkctl;
3323
3324                 pci_read_config_word(tp->pdev,
3325                                      tp->pcie_cap + PCI_EXP_LNKCTL,
3326                                      &oldlnkctl);
3327                 if (tp->link_config.active_speed == SPEED_100 ||
3328                     tp->link_config.active_speed == SPEED_10)
3329                         newlnkctl = oldlnkctl & ~PCI_EXP_LNKCTL_CLKREQ_EN;
3330                 else
3331                         newlnkctl = oldlnkctl | PCI_EXP_LNKCTL_CLKREQ_EN;
3332                 if (newlnkctl != oldlnkctl)
3333                         pci_write_config_word(tp->pdev,
3334                                               tp->pcie_cap + PCI_EXP_LNKCTL,
3335                                               newlnkctl);
3336         }
3337
3338         if (current_link_up != netif_carrier_ok(tp->dev)) {
3339                 if (current_link_up)
3340                         netif_carrier_on(tp->dev);
3341                 else
3342                         netif_carrier_off(tp->dev);
3343                 tg3_link_report(tp);
3344         }
3345
3346         return 0;
3347 }
3348
3349 struct tg3_fiber_aneginfo {
3350         int state;
3351 #define ANEG_STATE_UNKNOWN              0
3352 #define ANEG_STATE_AN_ENABLE            1
3353 #define ANEG_STATE_RESTART_INIT         2
3354 #define ANEG_STATE_RESTART              3
3355 #define ANEG_STATE_DISABLE_LINK_OK      4
3356 #define ANEG_STATE_ABILITY_DETECT_INIT  5
3357 #define ANEG_STATE_ABILITY_DETECT       6
3358 #define ANEG_STATE_ACK_DETECT_INIT      7
3359 #define ANEG_STATE_ACK_DETECT           8
3360 #define ANEG_STATE_COMPLETE_ACK_INIT    9
3361 #define ANEG_STATE_COMPLETE_ACK         10
3362 #define ANEG_STATE_IDLE_DETECT_INIT     11
3363 #define ANEG_STATE_IDLE_DETECT          12
3364 #define ANEG_STATE_LINK_OK              13
3365 #define ANEG_STATE_NEXT_PAGE_WAIT_INIT  14
3366 #define ANEG_STATE_NEXT_PAGE_WAIT       15
3367
3368         u32 flags;
3369 #define MR_AN_ENABLE            0x00000001
3370 #define MR_RESTART_AN           0x00000002
3371 #define MR_AN_COMPLETE          0x00000004
3372 #define MR_PAGE_RX              0x00000008
3373 #define MR_NP_LOADED            0x00000010
3374 #define MR_TOGGLE_TX            0x00000020
3375 #define MR_LP_ADV_FULL_DUPLEX   0x00000040
3376 #define MR_LP_ADV_HALF_DUPLEX   0x00000080
3377 #define MR_LP_ADV_SYM_PAUSE     0x00000100
3378 #define MR_LP_ADV_ASYM_PAUSE    0x00000200
3379 #define MR_LP_ADV_REMOTE_FAULT1 0x00000400
3380 #define MR_LP_ADV_REMOTE_FAULT2 0x00000800
3381 #define MR_LP_ADV_NEXT_PAGE     0x00001000
3382 #define MR_TOGGLE_RX            0x00002000
3383 #define MR_NP_RX                0x00004000
3384
3385 #define MR_LINK_OK              0x80000000
3386
3387         unsigned long link_time, cur_time;
3388
3389         u32 ability_match_cfg;
3390         int ability_match_count;
3391
3392         char ability_match, idle_match, ack_match;
3393
3394         u32 txconfig, rxconfig;
3395 #define ANEG_CFG_NP             0x00000080
3396 #define ANEG_CFG_ACK            0x00000040
3397 #define ANEG_CFG_RF2            0x00000020
3398 #define ANEG_CFG_RF1            0x00000010
3399 #define ANEG_CFG_PS2            0x00000001
3400 #define ANEG_CFG_PS1            0x00008000
3401 #define ANEG_CFG_HD             0x00004000
3402 #define ANEG_CFG_FD             0x00002000
3403 #define ANEG_CFG_INVAL          0x00001f06
3404
3405 };
3406 #define ANEG_OK         0
3407 #define ANEG_DONE       1
3408 #define ANEG_TIMER_ENAB 2
3409 #define ANEG_FAILED     -1
3410
3411 #define ANEG_STATE_SETTLE_TIME  10000
3412
3413 static int tg3_fiber_aneg_smachine(struct tg3 *tp,
3414                                    struct tg3_fiber_aneginfo *ap)
3415 {
3416         u16 flowctrl;
3417         unsigned long delta;
3418         u32 rx_cfg_reg;
3419         int ret;
3420
3421         if (ap->state == ANEG_STATE_UNKNOWN) {
3422                 ap->rxconfig = 0;
3423                 ap->link_time = 0;
3424                 ap->cur_time = 0;
3425                 ap->ability_match_cfg = 0;
3426                 ap->ability_match_count = 0;
3427                 ap->ability_match = 0;
3428                 ap->idle_match = 0;
3429                 ap->ack_match = 0;
3430         }
3431         ap->cur_time++;
3432
3433         if (tr32(MAC_STATUS) & MAC_STATUS_RCVD_CFG) {
3434                 rx_cfg_reg = tr32(MAC_RX_AUTO_NEG);
3435
3436                 if (rx_cfg_reg != ap->ability_match_cfg) {
3437                         ap->ability_match_cfg = rx_cfg_reg;
3438                         ap->ability_match = 0;
3439                         ap->ability_match_count = 0;
3440                 } else {
3441                         if (++ap->ability_match_count > 1) {
3442                                 ap->ability_match = 1;
3443                                 ap->ability_match_cfg = rx_cfg_reg;
3444                         }
3445                 }
3446                 if (rx_cfg_reg & ANEG_CFG_ACK)
3447                         ap->ack_match = 1;
3448                 else
3449                         ap->ack_match = 0;
3450
3451                 ap->idle_match = 0;
3452         } else {
3453                 ap->idle_match = 1;
3454                 ap->ability_match_cfg = 0;
3455                 ap->ability_match_count = 0;
3456                 ap->ability_match = 0;
3457                 ap->ack_match = 0;
3458
3459                 rx_cfg_reg = 0;
3460         }
3461
3462         ap->rxconfig = rx_cfg_reg;
3463         ret = ANEG_OK;
3464
3465         switch (ap->state) {
3466         case ANEG_STATE_UNKNOWN:
3467                 if (ap->flags & (MR_AN_ENABLE | MR_RESTART_AN))
3468                         ap->state = ANEG_STATE_AN_ENABLE;
3469
3470                 /* fallthru */
3471         case ANEG_STATE_AN_ENABLE:
3472                 ap->flags &= ~(MR_AN_COMPLETE | MR_PAGE_RX);
3473                 if (ap->flags & MR_AN_ENABLE) {
3474                         ap->link_time = 0;
3475                         ap->cur_time = 0;
3476                         ap->ability_match_cfg = 0;
3477                         ap->ability_match_count = 0;
3478                         ap->ability_match = 0;
3479                         ap->idle_match = 0;
3480                         ap->ack_match = 0;
3481
3482                         ap->state = ANEG_STATE_RESTART_INIT;
3483                 } else {
3484                         ap->state = ANEG_STATE_DISABLE_LINK_OK;
3485                 }
3486                 break;
3487
3488         case ANEG_STATE_RESTART_INIT:
3489                 ap->link_time = ap->cur_time;
3490                 ap->flags &= ~(MR_NP_LOADED);
3491                 ap->txconfig = 0;
3492                 tw32(MAC_TX_AUTO_NEG, 0);
3493                 tp->mac_mode |= MAC_MODE_SEND_CONFIGS;
3494                 tw32_f(MAC_MODE, tp->mac_mode);
3495                 udelay(40);
3496
3497                 ret = ANEG_TIMER_ENAB;
3498                 ap->state = ANEG_STATE_RESTART;
3499
3500                 /* fallthru */
3501         case ANEG_STATE_RESTART:
3502                 delta = ap->cur_time - ap->link_time;
3503                 if (delta > ANEG_STATE_SETTLE_TIME)
3504                         ap->state = ANEG_STATE_ABILITY_DETECT_INIT;
3505                 else
3506                         ret = ANEG_TIMER_ENAB;
3507                 break;
3508
3509         case ANEG_STATE_DISABLE_LINK_OK:
3510                 ret = ANEG_DONE;
3511                 break;
3512
3513         case ANEG_STATE_ABILITY_DETECT_INIT:
3514                 ap->flags &= ~(MR_TOGGLE_TX);
3515                 ap->txconfig = ANEG_CFG_FD;
3516                 flowctrl = tg3_advert_flowctrl_1000X(tp->link_config.flowctrl);
3517                 if (flowctrl & ADVERTISE_1000XPAUSE)
3518                         ap->txconfig |= ANEG_CFG_PS1;
3519                 if (flowctrl & ADVERTISE_1000XPSE_ASYM)
3520                         ap->txconfig |= ANEG_CFG_PS2;
3521                 tw32(MAC_TX_AUTO_NEG, ap->txconfig);
3522                 tp->mac_mode |= MAC_MODE_SEND_CONFIGS;
3523                 tw32_f(MAC_MODE, tp->mac_mode);
3524                 udelay(40);
3525
3526                 ap->state = ANEG_STATE_ABILITY_DETECT;
3527                 break;
3528
3529         case ANEG_STATE_ABILITY_DETECT:
3530                 if (ap->ability_match != 0 && ap->rxconfig != 0)
3531                         ap->state = ANEG_STATE_ACK_DETECT_INIT;
3532                 break;
3533
3534         case ANEG_STATE_ACK_DETECT_INIT:
3535                 ap->txconfig |= ANEG_CFG_ACK;
3536                 tw32(MAC_TX_AUTO_NEG, ap->txconfig);
3537                 tp->mac_mode |= MAC_MODE_SEND_CONFIGS;
3538                 tw32_f(MAC_MODE, tp->mac_mode);
3539                 udelay(40);
3540
3541                 ap->state = ANEG_STATE_ACK_DETECT;
3542
3543                 /* fallthru */
3544         case ANEG_STATE_ACK_DETECT:
3545                 if (ap->ack_match != 0) {
3546                         if ((ap->rxconfig & ~ANEG_CFG_ACK) ==
3547                             (ap->ability_match_cfg & ~ANEG_CFG_ACK)) {
3548                                 ap->state = ANEG_STATE_COMPLETE_ACK_INIT;
3549                         } else {
3550                                 ap->state = ANEG_STATE_AN_ENABLE;
3551                         }
3552                 } else if (ap->ability_match != 0 &&
3553                            ap->rxconfig == 0) {
3554                         ap->state = ANEG_STATE_AN_ENABLE;
3555                 }
3556                 break;
3557
3558         case ANEG_STATE_COMPLETE_ACK_INIT:
3559                 if (ap->rxconfig & ANEG_CFG_INVAL) {
3560                         ret = ANEG_FAILED;
3561                         break;
3562                 }
3563                 ap->flags &= ~(MR_LP_ADV_FULL_DUPLEX |
3564                                MR_LP_ADV_HALF_DUPLEX |
3565                                MR_LP_ADV_SYM_PAUSE |
3566                                MR_LP_ADV_ASYM_PAUSE |
3567                                MR_LP_ADV_REMOTE_FAULT1 |
3568                                MR_LP_ADV_REMOTE_FAULT2 |
3569                                MR_LP_ADV_NEXT_PAGE |
3570                                MR_TOGGLE_RX |
3571                                MR_NP_RX);
3572                 if (ap->rxconfig & ANEG_CFG_FD)
3573                         ap->flags |= MR_LP_ADV_FULL_DUPLEX;
3574                 if (ap->rxconfig & ANEG_CFG_HD)
3575                         ap->flags |= MR_LP_ADV_HALF_DUPLEX;
3576                 if (ap->rxconfig & ANEG_CFG_PS1)
3577                         ap->flags |= MR_LP_ADV_SYM_PAUSE;
3578                 if (ap->rxconfig & ANEG_CFG_PS2)
3579                         ap->flags |= MR_LP_ADV_ASYM_PAUSE;
3580                 if (ap->rxconfig & ANEG_CFG_RF1)
3581                         ap->flags |= MR_LP_ADV_REMOTE_FAULT1;
3582                 if (ap->rxconfig & ANEG_CFG_RF2)
3583                         ap->flags |= MR_LP_ADV_REMOTE_FAULT2;
3584                 if (ap->rxconfig & ANEG_CFG_NP)
3585                         ap->flags |= MR_LP_ADV_NEXT_PAGE;
3586
3587                 ap->link_time = ap->cur_time;
3588
3589                 ap->flags ^= (MR_TOGGLE_TX);
3590                 if (ap->rxconfig & 0x0008)
3591                         ap->flags |= MR_TOGGLE_RX;
3592                 if (ap->rxconfig & ANEG_CFG_NP)
3593                         ap->flags |= MR_NP_RX;
3594                 ap->flags |= MR_PAGE_RX;
3595
3596                 ap->state = ANEG_STATE_COMPLETE_ACK;
3597                 ret = ANEG_TIMER_ENAB;
3598                 break;
3599
3600         case ANEG_STATE_COMPLETE_ACK:
3601                 if (ap->ability_match != 0 &&
3602                     ap->rxconfig == 0) {
3603                         ap->state = ANEG_STATE_AN_ENABLE;
3604                         break;
3605                 }
3606                 delta = ap->cur_time - ap->link_time;
3607                 if (delta > ANEG_STATE_SETTLE_TIME) {
3608                         if (!(ap->flags & (MR_LP_ADV_NEXT_PAGE))) {
3609                                 ap->state = ANEG_STATE_IDLE_DETECT_INIT;
3610                         } else {
3611                                 if ((ap->txconfig & ANEG_CFG_NP) == 0 &&
3612                                     !(ap->flags & MR_NP_RX)) {
3613                                         ap->state = ANEG_STATE_IDLE_DETECT_INIT;
3614                                 } else {
3615                                         ret = ANEG_FAILED;
3616                                 }
3617                         }
3618                 }
3619                 break;
3620
3621         case ANEG_STATE_IDLE_DETECT_INIT:
3622                 ap->link_time = ap->cur_time;
3623                 tp->mac_mode &= ~MAC_MODE_SEND_CONFIGS;
3624                 tw32_f(MAC_MODE, tp->mac_mode);
3625                 udelay(40);
3626
3627                 ap->state = ANEG_STATE_IDLE_DETECT;
3628                 ret = ANEG_TIMER_ENAB;
3629                 break;
3630
3631         case ANEG_STATE_IDLE_DETECT:
3632                 if (ap->ability_match != 0 &&
3633                     ap->rxconfig == 0) {
3634                         ap->state = ANEG_STATE_AN_ENABLE;
3635                         break;
3636                 }
3637                 delta = ap->cur_time - ap->link_time;
3638                 if (delta > ANEG_STATE_SETTLE_TIME) {
3639                         /* XXX another gem from the Broadcom driver :( */
3640                         ap->state = ANEG_STATE_LINK_OK;
3641                 }
3642                 break;
3643
3644         case ANEG_STATE_LINK_OK:
3645                 ap->flags |= (MR_AN_COMPLETE | MR_LINK_OK);
3646                 ret = ANEG_DONE;
3647                 break;
3648
3649         case ANEG_STATE_NEXT_PAGE_WAIT_INIT:
3650                 /* ??? unimplemented */
3651                 break;
3652
3653         case ANEG_STATE_NEXT_PAGE_WAIT:
3654                 /* ??? unimplemented */
3655                 break;
3656
3657         default:
3658                 ret = ANEG_FAILED;
3659                 break;
3660         }
3661
3662         return ret;
3663 }
3664
3665 static int fiber_autoneg(struct tg3 *tp, u32 *txflags, u32 *rxflags)
3666 {
3667         int res = 0;
3668         struct tg3_fiber_aneginfo aninfo;
3669         int status = ANEG_FAILED;
3670         unsigned int tick;
3671         u32 tmp;
3672
3673         tw32_f(MAC_TX_AUTO_NEG, 0);
3674
3675         tmp = tp->mac_mode & ~MAC_MODE_PORT_MODE_MASK;
3676         tw32_f(MAC_MODE, tmp | MAC_MODE_PORT_MODE_GMII);
3677         udelay(40);
3678
3679         tw32_f(MAC_MODE, tp->mac_mode | MAC_MODE_SEND_CONFIGS);
3680         udelay(40);
3681
3682         memset(&aninfo, 0, sizeof(aninfo));
3683         aninfo.flags |= MR_AN_ENABLE;
3684         aninfo.state = ANEG_STATE_UNKNOWN;
3685         aninfo.cur_time = 0;
3686         tick = 0;
3687         while (++tick < 195000) {
3688                 status = tg3_fiber_aneg_smachine(tp, &aninfo);
3689                 if (status == ANEG_DONE || status == ANEG_FAILED)
3690                         break;
3691
3692                 udelay(1);
3693         }
3694
3695         tp->mac_mode &= ~MAC_MODE_SEND_CONFIGS;
3696         tw32_f(MAC_MODE, tp->mac_mode);
3697         udelay(40);
3698
3699         *txflags = aninfo.txconfig;
3700         *rxflags = aninfo.flags;
3701
3702         if (status == ANEG_DONE &&
3703             (aninfo.flags & (MR_AN_COMPLETE | MR_LINK_OK |
3704                              MR_LP_ADV_FULL_DUPLEX)))
3705                 res = 1;
3706
3707         return res;
3708 }
3709
3710 static void tg3_init_bcm8002(struct tg3 *tp)
3711 {
3712         u32 mac_status = tr32(MAC_STATUS);
3713         int i;
3714
3715         /* Reset when initting first time or we have a link. */
3716         if ((tp->tg3_flags & TG3_FLAG_INIT_COMPLETE) &&
3717             !(mac_status & MAC_STATUS_PCS_SYNCED))
3718                 return;
3719
3720         /* Set PLL lock range. */
3721         tg3_writephy(tp, 0x16, 0x8007);
3722
3723         /* SW reset */
3724         tg3_writephy(tp, MII_BMCR, BMCR_RESET);
3725
3726         /* Wait for reset to complete. */
3727         /* XXX schedule_timeout() ... */
3728         for (i = 0; i < 500; i++)
3729                 udelay(10);
3730
3731         /* Config mode; select PMA/Ch 1 regs. */
3732         tg3_writephy(tp, 0x10, 0x8411);
3733
3734         /* Enable auto-lock and comdet, select txclk for tx. */
3735         tg3_writephy(tp, 0x11, 0x0a10);
3736
3737         tg3_writephy(tp, 0x18, 0x00a0);
3738         tg3_writephy(tp, 0x16, 0x41ff);
3739
3740         /* Assert and deassert POR. */
3741         tg3_writephy(tp, 0x13, 0x0400);
3742         udelay(40);
3743         tg3_writephy(tp, 0x13, 0x0000);
3744
3745         tg3_writephy(tp, 0x11, 0x0a50);
3746         udelay(40);
3747         tg3_writephy(tp, 0x11, 0x0a10);
3748
3749         /* Wait for signal to stabilize */
3750         /* XXX schedule_timeout() ... */
3751         for (i = 0; i < 15000; i++)
3752                 udelay(10);
3753
3754         /* Deselect the channel register so we can read the PHYID
3755          * later.
3756          */
3757         tg3_writephy(tp, 0x10, 0x8011);
3758 }
3759
3760 static int tg3_setup_fiber_hw_autoneg(struct tg3 *tp, u32 mac_status)
3761 {
3762         u16 flowctrl;
3763         u32 sg_dig_ctrl, sg_dig_status;
3764         u32 serdes_cfg, expected_sg_dig_ctrl;
3765         int workaround, port_a;
3766         int current_link_up;
3767
3768         serdes_cfg = 0;
3769         expected_sg_dig_ctrl = 0;
3770         workaround = 0;
3771         port_a = 1;
3772         current_link_up = 0;
3773
3774         if (tp->pci_chip_rev_id != CHIPREV_ID_5704_A0 &&
3775             tp->pci_chip_rev_id != CHIPREV_ID_5704_A1) {
3776                 workaround = 1;
3777                 if (tr32(TG3PCI_DUAL_MAC_CTRL) & DUAL_MAC_CTRL_ID)
3778                         port_a = 0;
3779
3780                 /* preserve bits 0-11,13,14 for signal pre-emphasis */
3781                 /* preserve bits 20-23 for voltage regulator */
3782                 serdes_cfg = tr32(MAC_SERDES_CFG) & 0x00f06fff;
3783         }
3784
3785         sg_dig_ctrl = tr32(SG_DIG_CTRL);
3786
3787         if (tp->link_config.autoneg != AUTONEG_ENABLE) {
3788                 if (sg_dig_ctrl & SG_DIG_USING_HW_AUTONEG) {
3789                         if (workaround) {
3790                                 u32 val = serdes_cfg;
3791
3792                                 if (port_a)
3793                                         val |= 0xc010000;
3794                                 else
3795                                         val |= 0x4010000;
3796                                 tw32_f(MAC_SERDES_CFG, val);
3797                         }
3798
3799                         tw32_f(SG_DIG_CTRL, SG_DIG_COMMON_SETUP);
3800                 }
3801                 if (mac_status & MAC_STATUS_PCS_SYNCED) {
3802                         tg3_setup_flow_control(tp, 0, 0);
3803                         current_link_up = 1;
3804                 }
3805                 goto out;
3806         }
3807
3808         /* Want auto-negotiation.  */
3809         expected_sg_dig_ctrl = SG_DIG_USING_HW_AUTONEG | SG_DIG_COMMON_SETUP;
3810
3811         flowctrl = tg3_advert_flowctrl_1000X(tp->link_config.flowctrl);
3812         if (flowctrl & ADVERTISE_1000XPAUSE)
3813                 expected_sg_dig_ctrl |= SG_DIG_PAUSE_CAP;
3814         if (flowctrl & ADVERTISE_1000XPSE_ASYM)
3815                 expected_sg_dig_ctrl |= SG_DIG_ASYM_PAUSE;
3816
3817         if (sg_dig_ctrl != expected_sg_dig_ctrl) {
3818                 if ((tp->tg3_flags2 & TG3_FLG2_PARALLEL_DETECT) &&
3819                     tp->serdes_counter &&
3820                     ((mac_status & (MAC_STATUS_PCS_SYNCED |
3821                                     MAC_STATUS_RCVD_CFG)) ==
3822                      MAC_STATUS_PCS_SYNCED)) {
3823                         tp->serdes_counter--;
3824                         current_link_up = 1;
3825                         goto out;
3826                 }
3827 restart_autoneg:
3828                 if (workaround)
3829                         tw32_f(MAC_SERDES_CFG, serdes_cfg | 0xc011000);
3830                 tw32_f(SG_DIG_CTRL, expected_sg_dig_ctrl | SG_DIG_SOFT_RESET);
3831                 udelay(5);
3832                 tw32_f(SG_DIG_CTRL, expected_sg_dig_ctrl);
3833
3834                 tp->serdes_counter = SERDES_AN_TIMEOUT_5704S;
3835                 tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
3836         } else if (mac_status & (MAC_STATUS_PCS_SYNCED |
3837                                  MAC_STATUS_SIGNAL_DET)) {
3838                 sg_dig_status = tr32(SG_DIG_STATUS);
3839                 mac_status = tr32(MAC_STATUS);
3840
3841                 if ((sg_dig_status & SG_DIG_AUTONEG_COMPLETE) &&
3842                     (mac_status & MAC_STATUS_PCS_SYNCED)) {
3843                         u32 local_adv = 0, remote_adv = 0;
3844
3845                         if (sg_dig_ctrl & SG_DIG_PAUSE_CAP)
3846                                 local_adv |= ADVERTISE_1000XPAUSE;
3847                         if (sg_dig_ctrl & SG_DIG_ASYM_PAUSE)
3848                                 local_adv |= ADVERTISE_1000XPSE_ASYM;
3849
3850                         if (sg_dig_status & SG_DIG_PARTNER_PAUSE_CAPABLE)
3851                                 remote_adv |= LPA_1000XPAUSE;
3852                         if (sg_dig_status & SG_DIG_PARTNER_ASYM_PAUSE)
3853                                 remote_adv |= LPA_1000XPAUSE_ASYM;
3854
3855                         tg3_setup_flow_control(tp, local_adv, remote_adv);
3856                         current_link_up = 1;
3857                         tp->serdes_counter = 0;
3858                         tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
3859                 } else if (!(sg_dig_status & SG_DIG_AUTONEG_COMPLETE)) {
3860                         if (tp->serdes_counter)
3861                                 tp->serdes_counter--;
3862                         else {
3863                                 if (workaround) {
3864                                         u32 val = serdes_cfg;
3865
3866                                         if (port_a)
3867                                                 val |= 0xc010000;
3868                                         else
3869                                                 val |= 0x4010000;
3870
3871                                         tw32_f(MAC_SERDES_CFG, val);
3872                                 }
3873
3874                                 tw32_f(SG_DIG_CTRL, SG_DIG_COMMON_SETUP);
3875                                 udelay(40);
3876
3877                                 /* Link parallel detection - link is up */
3878                                 /* only if we have PCS_SYNC and not */
3879                                 /* receiving config code words */
3880                                 mac_status = tr32(MAC_STATUS);
3881                                 if ((mac_status & MAC_STATUS_PCS_SYNCED) &&
3882                                     !(mac_status & MAC_STATUS_RCVD_CFG)) {
3883                                         tg3_setup_flow_control(tp, 0, 0);
3884                                         current_link_up = 1;
3885                                         tp->tg3_flags2 |=
3886                                                 TG3_FLG2_PARALLEL_DETECT;
3887                                         tp->serdes_counter =
3888                                                 SERDES_PARALLEL_DET_TIMEOUT;
3889                                 } else
3890                                         goto restart_autoneg;
3891                         }
3892                 }
3893         } else {
3894                 tp->serdes_counter = SERDES_AN_TIMEOUT_5704S;
3895                 tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
3896         }
3897
3898 out:
3899         return current_link_up;
3900 }
3901
3902 static int tg3_setup_fiber_by_hand(struct tg3 *tp, u32 mac_status)
3903 {
3904         int current_link_up = 0;
3905
3906         if (!(mac_status & MAC_STATUS_PCS_SYNCED))
3907                 goto out;
3908
3909         if (tp->link_config.autoneg == AUTONEG_ENABLE) {
3910                 u32 txflags, rxflags;
3911                 int i;
3912
3913                 if (fiber_autoneg(tp, &txflags, &rxflags)) {
3914                         u32 local_adv = 0, remote_adv = 0;
3915
3916                         if (txflags & ANEG_CFG_PS1)
3917                                 local_adv |= ADVERTISE_1000XPAUSE;
3918                         if (txflags & ANEG_CFG_PS2)
3919                                 local_adv |= ADVERTISE_1000XPSE_ASYM;
3920
3921                         if (rxflags & MR_LP_ADV_SYM_PAUSE)
3922                                 remote_adv |= LPA_1000XPAUSE;
3923                         if (rxflags & MR_LP_ADV_ASYM_PAUSE)
3924                                 remote_adv |= LPA_1000XPAUSE_ASYM;
3925
3926                         tg3_setup_flow_control(tp, local_adv, remote_adv);
3927
3928                         current_link_up = 1;
3929                 }
3930                 for (i = 0; i < 30; i++) {
3931                         udelay(20);
3932                         tw32_f(MAC_STATUS,
3933                                (MAC_STATUS_SYNC_CHANGED |
3934                                 MAC_STATUS_CFG_CHANGED));
3935                         udelay(40);
3936                         if ((tr32(MAC_STATUS) &
3937                              (MAC_STATUS_SYNC_CHANGED |
3938                               MAC_STATUS_CFG_CHANGED)) == 0)
3939                                 break;
3940                 }
3941
3942                 mac_status = tr32(MAC_STATUS);
3943                 if (current_link_up == 0 &&
3944                     (mac_status & MAC_STATUS_PCS_SYNCED) &&
3945                     !(mac_status & MAC_STATUS_RCVD_CFG))
3946                         current_link_up = 1;
3947         } else {
3948                 tg3_setup_flow_control(tp, 0, 0);
3949
3950                 /* Forcing 1000FD link up. */
3951                 current_link_up = 1;
3952
3953                 tw32_f(MAC_MODE, (tp->mac_mode | MAC_MODE_SEND_CONFIGS));
3954                 udelay(40);
3955
3956                 tw32_f(MAC_MODE, tp->mac_mode);
3957                 udelay(40);
3958         }
3959
3960 out:
3961         return current_link_up;
3962 }
3963
3964 static int tg3_setup_fiber_phy(struct tg3 *tp, int force_reset)
3965 {
3966         u32 orig_pause_cfg;
3967         u16 orig_active_speed;
3968         u8 orig_active_duplex;
3969         u32 mac_status;
3970         int current_link_up;
3971         int i;
3972
3973         orig_pause_cfg = tp->link_config.active_flowctrl;
3974         orig_active_speed = tp->link_config.active_speed;
3975         orig_active_duplex = tp->link_config.active_duplex;
3976
3977         if (!(tp->tg3_flags2 & TG3_FLG2_HW_AUTONEG) &&
3978             netif_carrier_ok(tp->dev) &&
3979             (tp->tg3_flags & TG3_FLAG_INIT_COMPLETE)) {
3980                 mac_status = tr32(MAC_STATUS);
3981                 mac_status &= (MAC_STATUS_PCS_SYNCED |
3982                                MAC_STATUS_SIGNAL_DET |
3983                                MAC_STATUS_CFG_CHANGED |
3984                                MAC_STATUS_RCVD_CFG);
3985                 if (mac_status == (MAC_STATUS_PCS_SYNCED |
3986                                    MAC_STATUS_SIGNAL_DET)) {
3987                         tw32_f(MAC_STATUS, (MAC_STATUS_SYNC_CHANGED |
3988                                             MAC_STATUS_CFG_CHANGED));
3989                         return 0;
3990                 }
3991         }
3992
3993         tw32_f(MAC_TX_AUTO_NEG, 0);
3994
3995         tp->mac_mode &= ~(MAC_MODE_PORT_MODE_MASK | MAC_MODE_HALF_DUPLEX);
3996         tp->mac_mode |= MAC_MODE_PORT_MODE_TBI;
3997         tw32_f(MAC_MODE, tp->mac_mode);
3998         udelay(40);
3999
4000         if (tp->phy_id == TG3_PHY_ID_BCM8002)
4001                 tg3_init_bcm8002(tp);
4002
4003         /* Enable link change event even when serdes polling.  */
4004         tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
4005         udelay(40);
4006
4007         current_link_up = 0;
4008         mac_status = tr32(MAC_STATUS);
4009
4010         if (tp->tg3_flags2 & TG3_FLG2_HW_AUTONEG)
4011                 current_link_up = tg3_setup_fiber_hw_autoneg(tp, mac_status);
4012         else
4013                 current_link_up = tg3_setup_fiber_by_hand(tp, mac_status);
4014
4015         tp->napi[0].hw_status->status =
4016                 (SD_STATUS_UPDATED |
4017                  (tp->napi[0].hw_status->status & ~SD_STATUS_LINK_CHG));
4018
4019         for (i = 0; i < 100; i++) {
4020                 tw32_f(MAC_STATUS, (MAC_STATUS_SYNC_CHANGED |
4021                                     MAC_STATUS_CFG_CHANGED));
4022                 udelay(5);
4023                 if ((tr32(MAC_STATUS) & (MAC_STATUS_SYNC_CHANGED |
4024                                          MAC_STATUS_CFG_CHANGED |
4025                                          MAC_STATUS_LNKSTATE_CHANGED)) == 0)
4026                         break;
4027         }
4028
4029         mac_status = tr32(MAC_STATUS);
4030         if ((mac_status & MAC_STATUS_PCS_SYNCED) == 0) {
4031                 current_link_up = 0;
4032                 if (tp->link_config.autoneg == AUTONEG_ENABLE &&
4033                     tp->serdes_counter == 0) {
4034                         tw32_f(MAC_MODE, (tp->mac_mode |
4035                                           MAC_MODE_SEND_CONFIGS));
4036                         udelay(1);
4037                         tw32_f(MAC_MODE, tp->mac_mode);
4038                 }
4039         }
4040
4041         if (current_link_up == 1) {
4042                 tp->link_config.active_speed = SPEED_1000;
4043                 tp->link_config.active_duplex = DUPLEX_FULL;
4044                 tw32(MAC_LED_CTRL, (tp->led_ctrl |
4045                                     LED_CTRL_LNKLED_OVERRIDE |
4046                                     LED_CTRL_1000MBPS_ON));
4047         } else {
4048                 tp->link_config.active_speed = SPEED_INVALID;
4049                 tp->link_config.active_duplex = DUPLEX_INVALID;
4050                 tw32(MAC_LED_CTRL, (tp->led_ctrl |
4051                                     LED_CTRL_LNKLED_OVERRIDE |
4052                                     LED_CTRL_TRAFFIC_OVERRIDE));
4053         }
4054
4055         if (current_link_up != netif_carrier_ok(tp->dev)) {
4056                 if (current_link_up)
4057                         netif_carrier_on(tp->dev);
4058                 else
4059                         netif_carrier_off(tp->dev);
4060                 tg3_link_report(tp);
4061         } else {
4062                 u32 now_pause_cfg = tp->link_config.active_flowctrl;
4063                 if (orig_pause_cfg != now_pause_cfg ||
4064                     orig_active_speed != tp->link_config.active_speed ||
4065                     orig_active_duplex != tp->link_config.active_duplex)
4066                         tg3_link_report(tp);
4067         }
4068
4069         return 0;
4070 }
4071
4072 static int tg3_setup_fiber_mii_phy(struct tg3 *tp, int force_reset)
4073 {
4074         int current_link_up, err = 0;
4075         u32 bmsr, bmcr;
4076         u16 current_speed;
4077         u8 current_duplex;
4078         u32 local_adv, remote_adv;
4079
4080         tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
4081         tw32_f(MAC_MODE, tp->mac_mode);
4082         udelay(40);
4083
4084         tw32(MAC_EVENT, 0);
4085
4086         tw32_f(MAC_STATUS,
4087              (MAC_STATUS_SYNC_CHANGED |
4088               MAC_STATUS_CFG_CHANGED |
4089               MAC_STATUS_MI_COMPLETION |
4090               MAC_STATUS_LNKSTATE_CHANGED));
4091         udelay(40);
4092
4093         if (force_reset)
4094                 tg3_phy_reset(tp);
4095
4096         current_link_up = 0;
4097         current_speed = SPEED_INVALID;
4098         current_duplex = DUPLEX_INVALID;
4099
4100         err |= tg3_readphy(tp, MII_BMSR, &bmsr);
4101         err |= tg3_readphy(tp, MII_BMSR, &bmsr);
4102         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714) {
4103                 if (tr32(MAC_TX_STATUS) & TX_STATUS_LINK_UP)
4104                         bmsr |= BMSR_LSTATUS;
4105                 else
4106                         bmsr &= ~BMSR_LSTATUS;
4107         }
4108
4109         err |= tg3_readphy(tp, MII_BMCR, &bmcr);
4110
4111         if ((tp->link_config.autoneg == AUTONEG_ENABLE) && !force_reset &&
4112             (tp->tg3_flags2 & TG3_FLG2_PARALLEL_DETECT)) {
4113                 /* do nothing, just check for link up at the end */
4114         } else if (tp->link_config.autoneg == AUTONEG_ENABLE) {
4115                 u32 adv, new_adv;
4116
4117                 err |= tg3_readphy(tp, MII_ADVERTISE, &adv);
4118                 new_adv = adv & ~(ADVERTISE_1000XFULL | ADVERTISE_1000XHALF |
4119                                   ADVERTISE_1000XPAUSE |
4120                                   ADVERTISE_1000XPSE_ASYM |
4121                                   ADVERTISE_SLCT);
4122
4123                 new_adv |= tg3_advert_flowctrl_1000X(tp->link_config.flowctrl);
4124
4125                 if (tp->link_config.advertising & ADVERTISED_1000baseT_Half)
4126                         new_adv |= ADVERTISE_1000XHALF;
4127                 if (tp->link_config.advertising & ADVERTISED_1000baseT_Full)
4128                         new_adv |= ADVERTISE_1000XFULL;
4129
4130                 if ((new_adv != adv) || !(bmcr & BMCR_ANENABLE)) {
4131                         tg3_writephy(tp, MII_ADVERTISE, new_adv);
4132                         bmcr |= BMCR_ANENABLE | BMCR_ANRESTART;
4133                         tg3_writephy(tp, MII_BMCR, bmcr);
4134
4135                         tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
4136                         tp->serdes_counter = SERDES_AN_TIMEOUT_5714S;
4137                         tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
4138
4139                         return err;
4140                 }
4141         } else {
4142                 u32 new_bmcr;
4143
4144                 bmcr &= ~BMCR_SPEED1000;
4145                 new_bmcr = bmcr & ~(BMCR_ANENABLE | BMCR_FULLDPLX);
4146
4147                 if (tp->link_config.duplex == DUPLEX_FULL)
4148                         new_bmcr |= BMCR_FULLDPLX;
4149
4150                 if (new_bmcr != bmcr) {
4151                         /* BMCR_SPEED1000 is a reserved bit that needs
4152                          * to be set on write.
4153                          */
4154                         new_bmcr |= BMCR_SPEED1000;
4155
4156                         /* Force a linkdown */
4157                         if (netif_carrier_ok(tp->dev)) {
4158                                 u32 adv;
4159
4160                                 err |= tg3_readphy(tp, MII_ADVERTISE, &adv);
4161                                 adv &= ~(ADVERTISE_1000XFULL |
4162                                          ADVERTISE_1000XHALF |
4163                                          ADVERTISE_SLCT);
4164                                 tg3_writephy(tp, MII_ADVERTISE, adv);
4165                                 tg3_writephy(tp, MII_BMCR, bmcr |
4166                                                            BMCR_ANRESTART |
4167                                                            BMCR_ANENABLE);
4168                                 udelay(10);
4169                                 netif_carrier_off(tp->dev);
4170                         }
4171                         tg3_writephy(tp, MII_BMCR, new_bmcr);
4172                         bmcr = new_bmcr;
4173                         err |= tg3_readphy(tp, MII_BMSR, &bmsr);
4174                         err |= tg3_readphy(tp, MII_BMSR, &bmsr);
4175                         if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
4176                             ASIC_REV_5714) {
4177                                 if (tr32(MAC_TX_STATUS) & TX_STATUS_LINK_UP)
4178                                         bmsr |= BMSR_LSTATUS;
4179                                 else
4180                                         bmsr &= ~BMSR_LSTATUS;
4181                         }
4182                         tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
4183                 }
4184         }
4185
4186         if (bmsr & BMSR_LSTATUS) {
4187                 current_speed = SPEED_1000;
4188                 current_link_up = 1;
4189                 if (bmcr & BMCR_FULLDPLX)
4190                         current_duplex = DUPLEX_FULL;
4191                 else
4192                         current_duplex = DUPLEX_HALF;
4193
4194                 local_adv = 0;
4195                 remote_adv = 0;
4196
4197                 if (bmcr & BMCR_ANENABLE) {
4198                         u32 common;
4199
4200                         err |= tg3_readphy(tp, MII_ADVERTISE, &local_adv);
4201                         err |= tg3_readphy(tp, MII_LPA, &remote_adv);
4202                         common = local_adv & remote_adv;
4203                         if (common & (ADVERTISE_1000XHALF |
4204                                       ADVERTISE_1000XFULL)) {
4205                                 if (common & ADVERTISE_1000XFULL)
4206                                         current_duplex = DUPLEX_FULL;
4207                                 else
4208                                         current_duplex = DUPLEX_HALF;
4209                         } else {
4210                                 current_link_up = 0;
4211                         }
4212                 }
4213         }
4214
4215         if (current_link_up == 1 && current_duplex == DUPLEX_FULL)
4216                 tg3_setup_flow_control(tp, local_adv, remote_adv);
4217
4218         tp->mac_mode &= ~MAC_MODE_HALF_DUPLEX;
4219         if (tp->link_config.active_duplex == DUPLEX_HALF)
4220                 tp->mac_mode |= MAC_MODE_HALF_DUPLEX;
4221
4222         tw32_f(MAC_MODE, tp->mac_mode);
4223         udelay(40);
4224
4225         tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
4226
4227         tp->link_config.active_speed = current_speed;
4228         tp->link_config.active_duplex = current_duplex;
4229
4230         if (current_link_up != netif_carrier_ok(tp->dev)) {
4231                 if (current_link_up)
4232                         netif_carrier_on(tp->dev);
4233                 else {
4234                         netif_carrier_off(tp->dev);
4235                         tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
4236                 }
4237                 tg3_link_report(tp);
4238         }
4239         return err;
4240 }
4241
4242 static void tg3_serdes_parallel_detect(struct tg3 *tp)
4243 {
4244         if (tp->serdes_counter) {
4245                 /* Give autoneg time to complete. */
4246                 tp->serdes_counter--;
4247                 return;
4248         }
4249
4250         if (!netif_carrier_ok(tp->dev) &&
4251             (tp->link_config.autoneg == AUTONEG_ENABLE)) {
4252                 u32 bmcr;
4253
4254                 tg3_readphy(tp, MII_BMCR, &bmcr);
4255                 if (bmcr & BMCR_ANENABLE) {
4256                         u32 phy1, phy2;
4257
4258                         /* Select shadow register 0x1f */
4259                         tg3_writephy(tp, 0x1c, 0x7c00);
4260                         tg3_readphy(tp, 0x1c, &phy1);
4261
4262                         /* Select expansion interrupt status register */
4263                         tg3_writephy(tp, 0x17, 0x0f01);
4264                         tg3_readphy(tp, 0x15, &phy2);
4265                         tg3_readphy(tp, 0x15, &phy2);
4266
4267                         if ((phy1 & 0x10) && !(phy2 & 0x20)) {
4268                                 /* We have signal detect and not receiving
4269                                  * config code words, link is up by parallel
4270                                  * detection.
4271                                  */
4272
4273                                 bmcr &= ~BMCR_ANENABLE;
4274                                 bmcr |= BMCR_SPEED1000 | BMCR_FULLDPLX;
4275                                 tg3_writephy(tp, MII_BMCR, bmcr);
4276                                 tp->tg3_flags2 |= TG3_FLG2_PARALLEL_DETECT;
4277                         }
4278                 }
4279         } else if (netif_carrier_ok(tp->dev) &&
4280                    (tp->link_config.autoneg == AUTONEG_ENABLE) &&
4281                    (tp->tg3_flags2 & TG3_FLG2_PARALLEL_DETECT)) {
4282                 u32 phy2;
4283
4284                 /* Select expansion interrupt status register */
4285                 tg3_writephy(tp, 0x17, 0x0f01);
4286                 tg3_readphy(tp, 0x15, &phy2);
4287                 if (phy2 & 0x20) {
4288                         u32 bmcr;
4289
4290                         /* Config code words received, turn on autoneg. */
4291                         tg3_readphy(tp, MII_BMCR, &bmcr);
4292                         tg3_writephy(tp, MII_BMCR, bmcr | BMCR_ANENABLE);
4293
4294                         tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
4295
4296                 }
4297         }
4298 }
4299
4300 static int tg3_setup_phy(struct tg3 *tp, int force_reset)
4301 {
4302         int err;
4303
4304         if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)
4305                 err = tg3_setup_fiber_phy(tp, force_reset);
4306         else if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES)
4307                 err = tg3_setup_fiber_mii_phy(tp, force_reset);
4308         else
4309                 err = tg3_setup_copper_phy(tp, force_reset);
4310
4311         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX) {
4312                 u32 val, scale;
4313
4314                 val = tr32(TG3_CPMU_CLCK_STAT) & CPMU_CLCK_STAT_MAC_CLCK_MASK;
4315                 if (val == CPMU_CLCK_STAT_MAC_CLCK_62_5)
4316                         scale = 65;
4317                 else if (val == CPMU_CLCK_STAT_MAC_CLCK_6_25)
4318                         scale = 6;
4319                 else
4320                         scale = 12;
4321
4322                 val = tr32(GRC_MISC_CFG) & ~GRC_MISC_CFG_PRESCALAR_MASK;
4323                 val |= (scale << GRC_MISC_CFG_PRESCALAR_SHIFT);
4324                 tw32(GRC_MISC_CFG, val);
4325         }
4326
4327         if (tp->link_config.active_speed == SPEED_1000 &&
4328             tp->link_config.active_duplex == DUPLEX_HALF)
4329                 tw32(MAC_TX_LENGTHS,
4330                      ((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
4331                       (6 << TX_LENGTHS_IPG_SHIFT) |
4332                       (0xff << TX_LENGTHS_SLOT_TIME_SHIFT)));
4333         else
4334                 tw32(MAC_TX_LENGTHS,
4335                      ((2 << TX_LENGTHS_IPG_CRS_SHIFT) |
4336                       (6 << TX_LENGTHS_IPG_SHIFT) |
4337                       (32 << TX_LENGTHS_SLOT_TIME_SHIFT)));
4338
4339         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
4340                 if (netif_carrier_ok(tp->dev)) {
4341                         tw32(HOSTCC_STAT_COAL_TICKS,
4342                              tp->coal.stats_block_coalesce_usecs);
4343                 } else {
4344                         tw32(HOSTCC_STAT_COAL_TICKS, 0);
4345                 }
4346         }
4347
4348         if (tp->tg3_flags & TG3_FLAG_ASPM_WORKAROUND) {
4349                 u32 val = tr32(PCIE_PWR_MGMT_THRESH);
4350                 if (!netif_carrier_ok(tp->dev))
4351                         val = (val & ~PCIE_PWR_MGMT_L1_THRESH_MSK) |
4352                               tp->pwrmgmt_thresh;
4353                 else
4354                         val |= PCIE_PWR_MGMT_L1_THRESH_MSK;
4355                 tw32(PCIE_PWR_MGMT_THRESH, val);
4356         }
4357
4358         return err;
4359 }
4360
4361 /* This is called whenever we suspect that the system chipset is re-
4362  * ordering the sequence of MMIO to the tx send mailbox. The symptom
4363  * is bogus tx completions. We try to recover by setting the
4364  * TG3_FLAG_MBOX_WRITE_REORDER flag and resetting the chip later
4365  * in the workqueue.
4366  */
4367 static void tg3_tx_recover(struct tg3 *tp)
4368 {
4369         BUG_ON((tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER) ||
4370                tp->write32_tx_mbox == tg3_write_indirect_mbox);
4371
4372         netdev_warn(tp->dev,
4373                     "The system may be re-ordering memory-mapped I/O "
4374                     "cycles to the network device, attempting to recover. "
4375                     "Please report the problem to the driver maintainer "
4376                     "and include system chipset information.\n");
4377
4378         spin_lock(&tp->lock);
4379         tp->tg3_flags |= TG3_FLAG_TX_RECOVERY_PENDING;
4380         spin_unlock(&tp->lock);
4381 }
4382
4383 static inline u32 tg3_tx_avail(struct tg3_napi *tnapi)
4384 {
4385         smp_mb();
4386         return tnapi->tx_pending -
4387                ((tnapi->tx_prod - tnapi->tx_cons) & (TG3_TX_RING_SIZE - 1));
4388 }
4389
4390 /* Tigon3 never reports partial packet sends.  So we do not
4391  * need special logic to handle SKBs that have not had all
4392  * of their frags sent yet, like SunGEM does.
4393  */
4394 static void tg3_tx(struct tg3_napi *tnapi)
4395 {
4396         struct tg3 *tp = tnapi->tp;
4397         u32 hw_idx = tnapi->hw_status->idx[0].tx_consumer;
4398         u32 sw_idx = tnapi->tx_cons;
4399         struct netdev_queue *txq;
4400         int index = tnapi - tp->napi;
4401
4402         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
4403                 index--;
4404
4405         txq = netdev_get_tx_queue(tp->dev, index);
4406
4407         while (sw_idx != hw_idx) {
4408                 struct ring_info *ri = &tnapi->tx_buffers[sw_idx];
4409                 struct sk_buff *skb = ri->skb;
4410                 int i, tx_bug = 0;
4411
4412                 if (unlikely(skb == NULL)) {
4413                         tg3_tx_recover(tp);
4414                         return;
4415                 }
4416
4417                 pci_unmap_single(tp->pdev,
4418                                  dma_unmap_addr(ri, mapping),
4419                                  skb_headlen(skb),
4420                                  PCI_DMA_TODEVICE);
4421
4422                 ri->skb = NULL;
4423
4424                 sw_idx = NEXT_TX(sw_idx);
4425
4426                 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
4427                         ri = &tnapi->tx_buffers[sw_idx];
4428                         if (unlikely(ri->skb != NULL || sw_idx == hw_idx))
4429                                 tx_bug = 1;
4430
4431                         pci_unmap_page(tp->pdev,
4432                                        dma_unmap_addr(ri, mapping),
4433                                        skb_shinfo(skb)->frags[i].size,
4434                                        PCI_DMA_TODEVICE);
4435                         sw_idx = NEXT_TX(sw_idx);
4436                 }
4437
4438                 dev_kfree_skb(skb);
4439
4440                 if (unlikely(tx_bug)) {
4441                         tg3_tx_recover(tp);
4442                         return;
4443                 }
4444         }
4445
4446         tnapi->tx_cons = sw_idx;
4447
4448         /* Need to make the tx_cons update visible to tg3_start_xmit()
4449          * before checking for netif_queue_stopped().  Without the
4450          * memory barrier, there is a small possibility that tg3_start_xmit()
4451          * will miss it and cause the queue to be stopped forever.
4452          */
4453         smp_mb();
4454
4455         if (unlikely(netif_tx_queue_stopped(txq) &&
4456                      (tg3_tx_avail(tnapi) > TG3_TX_WAKEUP_THRESH(tnapi)))) {
4457                 __netif_tx_lock(txq, smp_processor_id());
4458                 if (netif_tx_queue_stopped(txq) &&
4459                     (tg3_tx_avail(tnapi) > TG3_TX_WAKEUP_THRESH(tnapi)))
4460                         netif_tx_wake_queue(txq);
4461                 __netif_tx_unlock(txq);
4462         }
4463 }
4464
4465 static void tg3_rx_skb_free(struct tg3 *tp, struct ring_info *ri, u32 map_sz)
4466 {
4467         if (!ri->skb)
4468                 return;
4469
4470         pci_unmap_single(tp->pdev, dma_unmap_addr(ri, mapping),
4471                          map_sz, PCI_DMA_FROMDEVICE);
4472         dev_kfree_skb_any(ri->skb);
4473         ri->skb = NULL;
4474 }
4475
4476 /* Returns size of skb allocated or < 0 on error.
4477  *
4478  * We only need to fill in the address because the other members
4479  * of the RX descriptor are invariant, see tg3_init_rings.
4480  *
4481  * Note the purposeful assymetry of cpu vs. chip accesses.  For
4482  * posting buffers we only dirty the first cache line of the RX
4483  * descriptor (containing the address).  Whereas for the RX status
4484  * buffers the cpu only reads the last cacheline of the RX descriptor
4485  * (to fetch the error flags, vlan tag, checksum, and opaque cookie).
4486  */
4487 static int tg3_alloc_rx_skb(struct tg3 *tp, struct tg3_rx_prodring_set *tpr,
4488                             u32 opaque_key, u32 dest_idx_unmasked)
4489 {
4490         struct tg3_rx_buffer_desc *desc;
4491         struct ring_info *map, *src_map;
4492         struct sk_buff *skb;
4493         dma_addr_t mapping;
4494         int skb_size, dest_idx;
4495
4496         src_map = NULL;
4497         switch (opaque_key) {
4498         case RXD_OPAQUE_RING_STD:
4499                 dest_idx = dest_idx_unmasked % TG3_RX_RING_SIZE;
4500                 desc = &tpr->rx_std[dest_idx];
4501                 map = &tpr->rx_std_buffers[dest_idx];
4502                 skb_size = tp->rx_pkt_map_sz;
4503                 break;
4504
4505         case RXD_OPAQUE_RING_JUMBO:
4506                 dest_idx = dest_idx_unmasked % TG3_RX_JUMBO_RING_SIZE;
4507                 desc = &tpr->rx_jmb[dest_idx].std;
4508                 map = &tpr->rx_jmb_buffers[dest_idx];
4509                 skb_size = TG3_RX_JMB_MAP_SZ;
4510                 break;
4511
4512         default:
4513                 return -EINVAL;
4514         }
4515
4516         /* Do not overwrite any of the map or rp information
4517          * until we are sure we can commit to a new buffer.
4518          *
4519          * Callers depend upon this behavior and assume that
4520          * we leave everything unchanged if we fail.
4521          */
4522         skb = netdev_alloc_skb(tp->dev, skb_size + tp->rx_offset);
4523         if (skb == NULL)
4524                 return -ENOMEM;
4525
4526         skb_reserve(skb, tp->rx_offset);
4527
4528         mapping = pci_map_single(tp->pdev, skb->data, skb_size,
4529                                  PCI_DMA_FROMDEVICE);
4530         if (pci_dma_mapping_error(tp->pdev, mapping)) {
4531                 dev_kfree_skb(skb);
4532                 return -EIO;
4533         }
4534
4535         map->skb = skb;
4536         dma_unmap_addr_set(map, mapping, mapping);
4537
4538         desc->addr_hi = ((u64)mapping >> 32);
4539         desc->addr_lo = ((u64)mapping & 0xffffffff);
4540
4541         return skb_size;
4542 }
4543
4544 /* We only need to move over in the address because the other
4545  * members of the RX descriptor are invariant.  See notes above
4546  * tg3_alloc_rx_skb for full details.
4547  */
4548 static void tg3_recycle_rx(struct tg3_napi *tnapi,
4549                            struct tg3_rx_prodring_set *dpr,
4550                            u32 opaque_key, int src_idx,
4551                            u32 dest_idx_unmasked)
4552 {
4553         struct tg3 *tp = tnapi->tp;
4554         struct tg3_rx_buffer_desc *src_desc, *dest_desc;
4555         struct ring_info *src_map, *dest_map;
4556         struct tg3_rx_prodring_set *spr = &tp->prodring[0];
4557         int dest_idx;
4558
4559         switch (opaque_key) {
4560         case RXD_OPAQUE_RING_STD:
4561                 dest_idx = dest_idx_unmasked % TG3_RX_RING_SIZE;
4562                 dest_desc = &dpr->rx_std[dest_idx];
4563                 dest_map = &dpr->rx_std_buffers[dest_idx];
4564                 src_desc = &spr->rx_std[src_idx];
4565                 src_map = &spr->rx_std_buffers[src_idx];
4566                 break;
4567
4568         case RXD_OPAQUE_RING_JUMBO:
4569                 dest_idx = dest_idx_unmasked % TG3_RX_JUMBO_RING_SIZE;
4570                 dest_desc = &dpr->rx_jmb[dest_idx].std;
4571                 dest_map = &dpr->rx_jmb_buffers[dest_idx];
4572                 src_desc = &spr->rx_jmb[src_idx].std;
4573                 src_map = &spr->rx_jmb_buffers[src_idx];
4574                 break;
4575
4576         default:
4577                 return;
4578         }
4579
4580         dest_map->skb = src_map->skb;
4581         dma_unmap_addr_set(dest_map, mapping,
4582                            dma_unmap_addr(src_map, mapping));
4583         dest_desc->addr_hi = src_desc->addr_hi;
4584         dest_desc->addr_lo = src_desc->addr_lo;
4585
4586         /* Ensure that the update to the skb happens after the physical
4587          * addresses have been transferred to the new BD location.
4588          */
4589         smp_wmb();
4590
4591         src_map->skb = NULL;
4592 }
4593
4594 /* The RX ring scheme is composed of multiple rings which post fresh
4595  * buffers to the chip, and one special ring the chip uses to report
4596  * status back to the host.
4597  *
4598  * The special ring reports the status of received packets to the
4599  * host.  The chip does not write into the original descriptor the
4600  * RX buffer was obtained from.  The chip simply takes the original
4601  * descriptor as provided by the host, updates the status and length
4602  * field, then writes this into the next status ring entry.
4603  *
4604  * Each ring the host uses to post buffers to the chip is described
4605  * by a TG3_BDINFO entry in the chips SRAM area.  When a packet arrives,
4606  * it is first placed into the on-chip ram.  When the packet's length
4607  * is known, it walks down the TG3_BDINFO entries to select the ring.
4608  * Each TG3_BDINFO specifies a MAXLEN field and the first TG3_BDINFO
4609  * which is within the range of the new packet's length is chosen.
4610  *
4611  * The "separate ring for rx status" scheme may sound queer, but it makes
4612  * sense from a cache coherency perspective.  If only the host writes
4613  * to the buffer post rings, and only the chip writes to the rx status
4614  * rings, then cache lines never move beyond shared-modified state.
4615  * If both the host and chip were to write into the same ring, cache line
4616  * eviction could occur since both entities want it in an exclusive state.
4617  */
4618 static int tg3_rx(struct tg3_napi *tnapi, int budget)
4619 {
4620         struct tg3 *tp = tnapi->tp;
4621         u32 work_mask, rx_std_posted = 0;
4622         u32 std_prod_idx, jmb_prod_idx;
4623         u32 sw_idx = tnapi->rx_rcb_ptr;
4624         u16 hw_idx;
4625         int received;
4626         struct tg3_rx_prodring_set *tpr = tnapi->prodring;
4627
4628         hw_idx = *(tnapi->rx_rcb_prod_idx);
4629         /*
4630          * We need to order the read of hw_idx and the read of
4631          * the opaque cookie.
4632          */
4633         rmb();
4634         work_mask = 0;
4635         received = 0;
4636         std_prod_idx = tpr->rx_std_prod_idx;
4637         jmb_prod_idx = tpr->rx_jmb_prod_idx;
4638         while (sw_idx != hw_idx && budget > 0) {
4639                 struct ring_info *ri;
4640                 struct tg3_rx_buffer_desc *desc = &tnapi->rx_rcb[sw_idx];
4641                 unsigned int len;
4642                 struct sk_buff *skb;
4643                 dma_addr_t dma_addr;
4644                 u32 opaque_key, desc_idx, *post_ptr;
4645                 bool hw_vlan __maybe_unused = false;
4646                 u16 vtag __maybe_unused = 0;
4647
4648                 desc_idx = desc->opaque & RXD_OPAQUE_INDEX_MASK;
4649                 opaque_key = desc->opaque & RXD_OPAQUE_RING_MASK;
4650                 if (opaque_key == RXD_OPAQUE_RING_STD) {
4651                         ri = &tp->prodring[0].rx_std_buffers[desc_idx];
4652                         dma_addr = dma_unmap_addr(ri, mapping);
4653                         skb = ri->skb;
4654                         post_ptr = &std_prod_idx;
4655                         rx_std_posted++;
4656                 } else if (opaque_key == RXD_OPAQUE_RING_JUMBO) {
4657                         ri = &tp->prodring[0].rx_jmb_buffers[desc_idx];
4658                         dma_addr = dma_unmap_addr(ri, mapping);
4659                         skb = ri->skb;
4660                         post_ptr = &jmb_prod_idx;
4661                 } else
4662                         goto next_pkt_nopost;
4663
4664                 work_mask |= opaque_key;
4665
4666                 if ((desc->err_vlan & RXD_ERR_MASK) != 0 &&
4667                     (desc->err_vlan != RXD_ERR_ODD_NIBBLE_RCVD_MII)) {
4668                 drop_it:
4669                         tg3_recycle_rx(tnapi, tpr, opaque_key,
4670                                        desc_idx, *post_ptr);
4671                 drop_it_no_recycle:
4672                         /* Other statistics kept track of by card. */
4673                         tp->net_stats.rx_dropped++;
4674                         goto next_pkt;
4675                 }
4676
4677                 len = ((desc->idx_len & RXD_LEN_MASK) >> RXD_LEN_SHIFT) -
4678                       ETH_FCS_LEN;
4679
4680                 if (len > TG3_RX_COPY_THRESH(tp)) {
4681                         int skb_size;
4682
4683                         skb_size = tg3_alloc_rx_skb(tp, tpr, opaque_key,
4684                                                     *post_ptr);
4685                         if (skb_size < 0)
4686                                 goto drop_it;
4687
4688                         pci_unmap_single(tp->pdev, dma_addr, skb_size,
4689                                          PCI_DMA_FROMDEVICE);
4690
4691                         /* Ensure that the update to the skb happens
4692                          * after the usage of the old DMA mapping.
4693                          */
4694                         smp_wmb();
4695
4696                         ri->skb = NULL;
4697
4698                         skb_put(skb, len);
4699                 } else {
4700                         struct sk_buff *copy_skb;
4701
4702                         tg3_recycle_rx(tnapi, tpr, opaque_key,
4703                                        desc_idx, *post_ptr);
4704
4705                         copy_skb = netdev_alloc_skb(tp->dev, len + VLAN_HLEN +
4706                                                     TG3_RAW_IP_ALIGN);
4707                         if (copy_skb == NULL)
4708                                 goto drop_it_no_recycle;
4709
4710                         skb_reserve(copy_skb, TG3_RAW_IP_ALIGN + VLAN_HLEN);
4711                         skb_put(copy_skb, len);
4712                         pci_dma_sync_single_for_cpu(tp->pdev, dma_addr, len, PCI_DMA_FROMDEVICE);
4713                         skb_copy_from_linear_data(skb, copy_skb->data, len);
4714                         pci_dma_sync_single_for_device(tp->pdev, dma_addr, len, PCI_DMA_FROMDEVICE);
4715
4716                         /* We'll reuse the original ring buffer. */
4717                         skb = copy_skb;
4718                 }
4719
4720                 if ((tp->tg3_flags & TG3_FLAG_RX_CHECKSUMS) &&
4721                     (desc->type_flags & RXD_FLAG_TCPUDP_CSUM) &&
4722                     (((desc->ip_tcp_csum & RXD_TCPCSUM_MASK)
4723                       >> RXD_TCPCSUM_SHIFT) == 0xffff))
4724                         skb->ip_summed = CHECKSUM_UNNECESSARY;
4725                 else
4726                         skb->ip_summed = CHECKSUM_NONE;
4727
4728                 skb->protocol = eth_type_trans(skb, tp->dev);
4729
4730                 if (len > (tp->dev->mtu + ETH_HLEN) &&
4731                     skb->protocol != htons(ETH_P_8021Q)) {
4732                         dev_kfree_skb(skb);
4733                         goto next_pkt;
4734                 }
4735
4736                 if (desc->type_flags & RXD_FLAG_VLAN &&
4737                     !(tp->rx_mode & RX_MODE_KEEP_VLAN_TAG)) {
4738                         vtag = desc->err_vlan & RXD_VLAN_MASK;
4739 #if TG3_VLAN_TAG_USED
4740                         if (tp->vlgrp)
4741                                 hw_vlan = true;
4742                         else
4743 #endif
4744                         {
4745                                 struct vlan_ethhdr *ve = (struct vlan_ethhdr *)
4746                                                     __skb_push(skb, VLAN_HLEN);
4747
4748                                 memmove(ve, skb->data + VLAN_HLEN,
4749                                         ETH_ALEN * 2);
4750                                 ve->h_vlan_proto = htons(ETH_P_8021Q);
4751                                 ve->h_vlan_TCI = htons(vtag);
4752                         }
4753                 }
4754
4755 #if TG3_VLAN_TAG_USED
4756                 if (hw_vlan)
4757                         vlan_gro_receive(&tnapi->napi, tp->vlgrp, vtag, skb);
4758                 else
4759 #endif
4760                         napi_gro_receive(&tnapi->napi, skb);
4761
4762                 received++;
4763                 budget--;
4764
4765 next_pkt:
4766                 (*post_ptr)++;
4767
4768                 if (unlikely(rx_std_posted >= tp->rx_std_max_post)) {
4769                         tpr->rx_std_prod_idx = std_prod_idx % TG3_RX_RING_SIZE;
4770                         tw32_rx_mbox(TG3_RX_STD_PROD_IDX_REG,
4771                                      tpr->rx_std_prod_idx);
4772                         work_mask &= ~RXD_OPAQUE_RING_STD;
4773                         rx_std_posted = 0;
4774                 }
4775 next_pkt_nopost:
4776                 sw_idx++;
4777                 sw_idx &= (TG3_RX_RCB_RING_SIZE(tp) - 1);
4778
4779                 /* Refresh hw_idx to see if there is new work */
4780                 if (sw_idx == hw_idx) {
4781                         hw_idx = *(tnapi->rx_rcb_prod_idx);
4782                         rmb();
4783                 }
4784         }
4785
4786         /* ACK the status ring. */
4787         tnapi->rx_rcb_ptr = sw_idx;
4788         tw32_rx_mbox(tnapi->consmbox, sw_idx);
4789
4790         /* Refill RX ring(s). */
4791         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS)) {
4792                 if (work_mask & RXD_OPAQUE_RING_STD) {
4793                         tpr->rx_std_prod_idx = std_prod_idx % TG3_RX_RING_SIZE;
4794                         tw32_rx_mbox(TG3_RX_STD_PROD_IDX_REG,
4795                                      tpr->rx_std_prod_idx);
4796                 }
4797                 if (work_mask & RXD_OPAQUE_RING_JUMBO) {
4798                         tpr->rx_jmb_prod_idx = jmb_prod_idx %
4799                                                TG3_RX_JUMBO_RING_SIZE;
4800                         tw32_rx_mbox(TG3_RX_JMB_PROD_IDX_REG,
4801                                      tpr->rx_jmb_prod_idx);
4802                 }
4803                 mmiowb();
4804         } else if (work_mask) {
4805                 /* rx_std_buffers[] and rx_jmb_buffers[] entries must be
4806                  * updated before the producer indices can be updated.
4807                  */
4808                 smp_wmb();
4809
4810                 tpr->rx_std_prod_idx = std_prod_idx % TG3_RX_RING_SIZE;
4811                 tpr->rx_jmb_prod_idx = jmb_prod_idx % TG3_RX_JUMBO_RING_SIZE;
4812
4813                 if (tnapi != &tp->napi[1])
4814                         napi_schedule(&tp->napi[1].napi);
4815         }
4816
4817         return received;
4818 }
4819
4820 static void tg3_poll_link(struct tg3 *tp)
4821 {
4822         /* handle link change and other phy events */
4823         if (!(tp->tg3_flags &
4824               (TG3_FLAG_USE_LINKCHG_REG |
4825                TG3_FLAG_POLL_SERDES))) {
4826                 struct tg3_hw_status *sblk = tp->napi[0].hw_status;
4827
4828                 if (sblk->status & SD_STATUS_LINK_CHG) {
4829                         sblk->status = SD_STATUS_UPDATED |
4830                                        (sblk->status & ~SD_STATUS_LINK_CHG);
4831                         spin_lock(&tp->lock);
4832                         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
4833                                 tw32_f(MAC_STATUS,
4834                                      (MAC_STATUS_SYNC_CHANGED |
4835                                       MAC_STATUS_CFG_CHANGED |
4836                                       MAC_STATUS_MI_COMPLETION |
4837                                       MAC_STATUS_LNKSTATE_CHANGED));
4838                                 udelay(40);
4839                         } else
4840                                 tg3_setup_phy(tp, 0);
4841                         spin_unlock(&tp->lock);
4842                 }
4843         }
4844 }
4845
4846 static int tg3_rx_prodring_xfer(struct tg3 *tp,
4847                                 struct tg3_rx_prodring_set *dpr,
4848                                 struct tg3_rx_prodring_set *spr)
4849 {
4850         u32 si, di, cpycnt, src_prod_idx;
4851         int i, err = 0;
4852
4853         while (1) {
4854                 src_prod_idx = spr->rx_std_prod_idx;
4855
4856                 /* Make sure updates to the rx_std_buffers[] entries and the
4857                  * standard producer index are seen in the correct order.
4858                  */
4859                 smp_rmb();
4860
4861                 if (spr->rx_std_cons_idx == src_prod_idx)
4862                         break;
4863
4864                 if (spr->rx_std_cons_idx < src_prod_idx)
4865                         cpycnt = src_prod_idx - spr->rx_std_cons_idx;
4866                 else
4867                         cpycnt = TG3_RX_RING_SIZE - spr->rx_std_cons_idx;
4868
4869                 cpycnt = min(cpycnt, TG3_RX_RING_SIZE - dpr->rx_std_prod_idx);
4870
4871                 si = spr->rx_std_cons_idx;
4872                 di = dpr->rx_std_prod_idx;
4873
4874                 for (i = di; i < di + cpycnt; i++) {
4875                         if (dpr->rx_std_buffers[i].skb) {
4876                                 cpycnt = i - di;
4877                                 err = -ENOSPC;
4878                                 break;
4879                         }
4880                 }
4881
4882                 if (!cpycnt)
4883                         break;
4884
4885                 /* Ensure that updates to the rx_std_buffers ring and the
4886                  * shadowed hardware producer ring from tg3_recycle_skb() are
4887                  * ordered correctly WRT the skb check above.
4888                  */
4889                 smp_rmb();
4890
4891                 memcpy(&dpr->rx_std_buffers[di],
4892                        &spr->rx_std_buffers[si],
4893                        cpycnt * sizeof(struct ring_info));
4894
4895                 for (i = 0; i < cpycnt; i++, di++, si++) {
4896                         struct tg3_rx_buffer_desc *sbd, *dbd;
4897                         sbd = &spr->rx_std[si];
4898                         dbd = &dpr->rx_std[di];
4899                         dbd->addr_hi = sbd->addr_hi;
4900                         dbd->addr_lo = sbd->addr_lo;
4901                 }
4902
4903                 spr->rx_std_cons_idx = (spr->rx_std_cons_idx + cpycnt) %
4904                                        TG3_RX_RING_SIZE;
4905                 dpr->rx_std_prod_idx = (dpr->rx_std_prod_idx + cpycnt) %
4906                                        TG3_RX_RING_SIZE;
4907         }
4908
4909         while (1) {
4910                 src_prod_idx = spr->rx_jmb_prod_idx;
4911
4912                 /* Make sure updates to the rx_jmb_buffers[] entries and
4913                  * the jumbo producer index are seen in the correct order.
4914                  */
4915                 smp_rmb();
4916
4917                 if (spr->rx_jmb_cons_idx == src_prod_idx)
4918                         break;
4919
4920                 if (spr->rx_jmb_cons_idx < src_prod_idx)
4921                         cpycnt = src_prod_idx - spr->rx_jmb_cons_idx;
4922                 else
4923                         cpycnt = TG3_RX_JUMBO_RING_SIZE - spr->rx_jmb_cons_idx;
4924
4925                 cpycnt = min(cpycnt,
4926                              TG3_RX_JUMBO_RING_SIZE - dpr->rx_jmb_prod_idx);
4927
4928                 si = spr->rx_jmb_cons_idx;
4929                 di = dpr->rx_jmb_prod_idx;
4930
4931                 for (i = di; i < di + cpycnt; i++) {
4932                         if (dpr->rx_jmb_buffers[i].skb) {
4933                                 cpycnt = i - di;
4934                                 err = -ENOSPC;
4935                                 break;
4936                         }
4937                 }
4938
4939                 if (!cpycnt)
4940                         break;
4941
4942                 /* Ensure that updates to the rx_jmb_buffers ring and the
4943                  * shadowed hardware producer ring from tg3_recycle_skb() are
4944                  * ordered correctly WRT the skb check above.
4945                  */
4946                 smp_rmb();
4947
4948                 memcpy(&dpr->rx_jmb_buffers[di],
4949                        &spr->rx_jmb_buffers[si],
4950                        cpycnt * sizeof(struct ring_info));
4951
4952                 for (i = 0; i < cpycnt; i++, di++, si++) {
4953                         struct tg3_rx_buffer_desc *sbd, *dbd;
4954                         sbd = &spr->rx_jmb[si].std;
4955                         dbd = &dpr->rx_jmb[di].std;
4956                         dbd->addr_hi = sbd->addr_hi;
4957                         dbd->addr_lo = sbd->addr_lo;
4958                 }
4959
4960                 spr->rx_jmb_cons_idx = (spr->rx_jmb_cons_idx + cpycnt) %
4961                                        TG3_RX_JUMBO_RING_SIZE;
4962                 dpr->rx_jmb_prod_idx = (dpr->rx_jmb_prod_idx + cpycnt) %
4963                                        TG3_RX_JUMBO_RING_SIZE;
4964         }
4965
4966         return err;
4967 }
4968
4969 static int tg3_poll_work(struct tg3_napi *tnapi, int work_done, int budget)
4970 {
4971         struct tg3 *tp = tnapi->tp;
4972
4973         /* run TX completion thread */
4974         if (tnapi->hw_status->idx[0].tx_consumer != tnapi->tx_cons) {
4975                 tg3_tx(tnapi);
4976                 if (unlikely(tp->tg3_flags & TG3_FLAG_TX_RECOVERY_PENDING))
4977                         return work_done;
4978         }
4979
4980         /* run RX thread, within the bounds set by NAPI.
4981          * All RX "locking" is done by ensuring outside
4982          * code synchronizes with tg3->napi.poll()
4983          */
4984         if (*(tnapi->rx_rcb_prod_idx) != tnapi->rx_rcb_ptr)
4985                 work_done += tg3_rx(tnapi, budget - work_done);
4986
4987         if ((tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS) && tnapi == &tp->napi[1]) {
4988                 struct tg3_rx_prodring_set *dpr = &tp->prodring[0];
4989                 int i, err = 0;
4990                 u32 std_prod_idx = dpr->rx_std_prod_idx;
4991                 u32 jmb_prod_idx = dpr->rx_jmb_prod_idx;
4992
4993                 for (i = 1; i < tp->irq_cnt; i++)
4994                         err |= tg3_rx_prodring_xfer(tp, dpr,
4995                                                     tp->napi[i].prodring);
4996
4997                 wmb();
4998
4999                 if (std_prod_idx != dpr->rx_std_prod_idx)
5000                         tw32_rx_mbox(TG3_RX_STD_PROD_IDX_REG,
5001                                      dpr->rx_std_prod_idx);
5002
5003                 if (jmb_prod_idx != dpr->rx_jmb_prod_idx)
5004                         tw32_rx_mbox(TG3_RX_JMB_PROD_IDX_REG,
5005                                      dpr->rx_jmb_prod_idx);
5006
5007                 mmiowb();
5008
5009                 if (err)
5010                         tw32_f(HOSTCC_MODE, tp->coal_now);
5011         }
5012
5013         return work_done;
5014 }
5015
5016 static int tg3_poll_msix(struct napi_struct *napi, int budget)
5017 {
5018         struct tg3_napi *tnapi = container_of(napi, struct tg3_napi, napi);
5019         struct tg3 *tp = tnapi->tp;
5020         int work_done = 0;
5021         struct tg3_hw_status *sblk = tnapi->hw_status;
5022
5023         while (1) {
5024                 work_done = tg3_poll_work(tnapi, work_done, budget);
5025
5026                 if (unlikely(tp->tg3_flags & TG3_FLAG_TX_RECOVERY_PENDING))
5027                         goto tx_recovery;
5028
5029                 if (unlikely(work_done >= budget))
5030                         break;
5031
5032                 /* tp->last_tag is used in tg3_int_reenable() below
5033                  * to tell the hw how much work has been processed,
5034                  * so we must read it before checking for more work.
5035                  */
5036                 tnapi->last_tag = sblk->status_tag;
5037                 tnapi->last_irq_tag = tnapi->last_tag;
5038                 rmb();
5039
5040                 /* check for RX/TX work to do */
5041                 if (likely(sblk->idx[0].tx_consumer == tnapi->tx_cons &&
5042                            *(tnapi->rx_rcb_prod_idx) == tnapi->rx_rcb_ptr)) {
5043                         napi_complete(napi);
5044                         /* Reenable interrupts. */
5045                         tw32_mailbox(tnapi->int_mbox, tnapi->last_tag << 24);
5046                         mmiowb();
5047                         break;
5048                 }
5049         }
5050
5051         return work_done;
5052
5053 tx_recovery:
5054         /* work_done is guaranteed to be less than budget. */
5055         napi_complete(napi);
5056         schedule_work(&tp->reset_task);
5057         return work_done;
5058 }
5059
5060 static int tg3_poll(struct napi_struct *napi, int budget)
5061 {
5062         struct tg3_napi *tnapi = container_of(napi, struct tg3_napi, napi);
5063         struct tg3 *tp = tnapi->tp;
5064         int work_done = 0;
5065         struct tg3_hw_status *sblk = tnapi->hw_status;
5066
5067         while (1) {
5068                 tg3_poll_link(tp);
5069
5070                 work_done = tg3_poll_work(tnapi, work_done, budget);
5071
5072                 if (unlikely(tp->tg3_flags & TG3_FLAG_TX_RECOVERY_PENDING))
5073                         goto tx_recovery;
5074
5075                 if (unlikely(work_done >= budget))
5076                         break;
5077
5078                 if (tp->tg3_flags & TG3_FLAG_TAGGED_STATUS) {
5079                         /* tp->last_tag is used in tg3_int_reenable() below
5080                          * to tell the hw how much work has been processed,
5081                          * so we must read it before checking for more work.
5082                          */
5083                         tnapi->last_tag = sblk->status_tag;
5084                         tnapi->last_irq_tag = tnapi->last_tag;
5085                         rmb();
5086                 } else
5087                         sblk->status &= ~SD_STATUS_UPDATED;
5088
5089                 if (likely(!tg3_has_work(tnapi))) {
5090                         napi_complete(napi);
5091                         tg3_int_reenable(tnapi);
5092                         break;
5093                 }
5094         }
5095
5096         return work_done;
5097
5098 tx_recovery:
5099         /* work_done is guaranteed to be less than budget. */
5100         napi_complete(napi);
5101         schedule_work(&tp->reset_task);
5102         return work_done;
5103 }
5104
5105 static void tg3_irq_quiesce(struct tg3 *tp)
5106 {
5107         int i;
5108
5109         BUG_ON(tp->irq_sync);
5110
5111         tp->irq_sync = 1;
5112         smp_mb();
5113
5114         for (i = 0; i < tp->irq_cnt; i++)
5115                 synchronize_irq(tp->napi[i].irq_vec);
5116 }
5117
5118 static inline int tg3_irq_sync(struct tg3 *tp)
5119 {
5120         return tp->irq_sync;
5121 }
5122
5123 /* Fully shutdown all tg3 driver activity elsewhere in the system.
5124  * If irq_sync is non-zero, then the IRQ handler must be synchronized
5125  * with as well.  Most of the time, this is not necessary except when
5126  * shutting down the device.
5127  */
5128 static inline void tg3_full_lock(struct tg3 *tp, int irq_sync)
5129 {
5130         spin_lock_bh(&tp->lock);
5131         if (irq_sync)
5132                 tg3_irq_quiesce(tp);
5133 }
5134
5135 static inline void tg3_full_unlock(struct tg3 *tp)
5136 {
5137         spin_unlock_bh(&tp->lock);
5138 }
5139
5140 /* One-shot MSI handler - Chip automatically disables interrupt
5141  * after sending MSI so driver doesn't have to do it.
5142  */
5143 static irqreturn_t tg3_msi_1shot(int irq, void *dev_id)
5144 {
5145         struct tg3_napi *tnapi = dev_id;
5146         struct tg3 *tp = tnapi->tp;
5147
5148         prefetch(tnapi->hw_status);
5149         if (tnapi->rx_rcb)
5150                 prefetch(&tnapi->rx_rcb[tnapi->rx_rcb_ptr]);
5151
5152         if (likely(!tg3_irq_sync(tp)))
5153                 napi_schedule(&tnapi->napi);
5154
5155         return IRQ_HANDLED;
5156 }
5157
5158 /* MSI ISR - No need to check for interrupt sharing and no need to
5159  * flush status block and interrupt mailbox. PCI ordering rules
5160  * guarantee that MSI will arrive after the status block.
5161  */
5162 static irqreturn_t tg3_msi(int irq, void *dev_id)
5163 {
5164         struct tg3_napi *tnapi = dev_id;
5165         struct tg3 *tp = tnapi->tp;
5166
5167         prefetch(tnapi->hw_status);
5168         if (tnapi->rx_rcb)
5169                 prefetch(&tnapi->rx_rcb[tnapi->rx_rcb_ptr]);
5170         /*
5171          * Writing any value to intr-mbox-0 clears PCI INTA# and
5172          * chip-internal interrupt pending events.
5173          * Writing non-zero to intr-mbox-0 additional tells the
5174          * NIC to stop sending us irqs, engaging "in-intr-handler"
5175          * event coalescing.
5176          */
5177         tw32_mailbox(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
5178         if (likely(!tg3_irq_sync(tp)))
5179                 napi_schedule(&tnapi->napi);
5180
5181         return IRQ_RETVAL(1);
5182 }
5183
5184 static irqreturn_t tg3_interrupt(int irq, void *dev_id)
5185 {
5186         struct tg3_napi *tnapi = dev_id;
5187         struct tg3 *tp = tnapi->tp;
5188         struct tg3_hw_status *sblk = tnapi->hw_status;
5189         unsigned int handled = 1;
5190
5191         /* In INTx mode, it is possible for the interrupt to arrive at
5192          * the CPU before the status block posted prior to the interrupt.
5193          * Reading the PCI State register will confirm whether the
5194          * interrupt is ours and will flush the status block.
5195          */
5196         if (unlikely(!(sblk->status & SD_STATUS_UPDATED))) {
5197                 if ((tp->tg3_flags & TG3_FLAG_CHIP_RESETTING) ||
5198                     (tr32(TG3PCI_PCISTATE) & PCISTATE_INT_NOT_ACTIVE)) {
5199                         handled = 0;
5200                         goto out;
5201                 }
5202         }
5203
5204         /*
5205          * Writing any value to intr-mbox-0 clears PCI INTA# and
5206          * chip-internal interrupt pending events.
5207          * Writing non-zero to intr-mbox-0 additional tells the
5208          * NIC to stop sending us irqs, engaging "in-intr-handler"
5209          * event coalescing.
5210          *
5211          * Flush the mailbox to de-assert the IRQ immediately to prevent
5212          * spurious interrupts.  The flush impacts performance but
5213          * excessive spurious interrupts can be worse in some cases.
5214          */
5215         tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
5216         if (tg3_irq_sync(tp))
5217                 goto out;
5218         sblk->status &= ~SD_STATUS_UPDATED;
5219         if (likely(tg3_has_work(tnapi))) {
5220                 prefetch(&tnapi->rx_rcb[tnapi->rx_rcb_ptr]);
5221                 napi_schedule(&tnapi->napi);
5222         } else {
5223                 /* No work, shared interrupt perhaps?  re-enable
5224                  * interrupts, and flush that PCI write
5225                  */
5226                 tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW,
5227                                0x00000000);
5228         }
5229 out:
5230         return IRQ_RETVAL(handled);
5231 }
5232
5233 static irqreturn_t tg3_interrupt_tagged(int irq, void *dev_id)
5234 {
5235         struct tg3_napi *tnapi = dev_id;
5236         struct tg3 *tp = tnapi->tp;
5237         struct tg3_hw_status *sblk = tnapi->hw_status;
5238         unsigned int handled = 1;
5239
5240         /* In INTx mode, it is possible for the interrupt to arrive at
5241          * the CPU before the status block posted prior to the interrupt.
5242          * Reading the PCI State register will confirm whether the
5243          * interrupt is ours and will flush the status block.
5244          */
5245         if (unlikely(sblk->status_tag == tnapi->last_irq_tag)) {
5246                 if ((tp->tg3_flags & TG3_FLAG_CHIP_RESETTING) ||
5247                     (tr32(TG3PCI_PCISTATE) & PCISTATE_INT_NOT_ACTIVE)) {
5248                         handled = 0;
5249                         goto out;
5250                 }
5251         }
5252
5253         /*
5254          * writing any value to intr-mbox-0 clears PCI INTA# and
5255          * chip-internal interrupt pending events.
5256          * writing non-zero to intr-mbox-0 additional tells the
5257          * NIC to stop sending us irqs, engaging "in-intr-handler"
5258          * event coalescing.
5259          *
5260          * Flush the mailbox to de-assert the IRQ immediately to prevent
5261          * spurious interrupts.  The flush impacts performance but
5262          * excessive spurious interrupts can be worse in some cases.
5263          */
5264         tw32_mailbox_f(MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW, 0x00000001);
5265
5266         /*
5267          * In a shared interrupt configuration, sometimes other devices'
5268          * interrupts will scream.  We record the current status tag here
5269          * so that the above check can report that the screaming interrupts
5270          * are unhandled.  Eventually they will be silenced.
5271          */
5272         tnapi->last_irq_tag = sblk->status_tag;
5273
5274         if (tg3_irq_sync(tp))
5275                 goto out;
5276
5277         prefetch(&tnapi->rx_rcb[tnapi->rx_rcb_ptr]);
5278
5279         napi_schedule(&tnapi->napi);
5280
5281 out:
5282         return IRQ_RETVAL(handled);
5283 }
5284
5285 /* ISR for interrupt test */
5286 static irqreturn_t tg3_test_isr(int irq, void *dev_id)
5287 {
5288         struct tg3_napi *tnapi = dev_id;
5289         struct tg3 *tp = tnapi->tp;
5290         struct tg3_hw_status *sblk = tnapi->hw_status;
5291
5292         if ((sblk->status & SD_STATUS_UPDATED) ||
5293             !(tr32(TG3PCI_PCISTATE) & PCISTATE_INT_NOT_ACTIVE)) {
5294                 tg3_disable_ints(tp);
5295                 return IRQ_RETVAL(1);
5296         }
5297         return IRQ_RETVAL(0);
5298 }
5299
5300 static int tg3_init_hw(struct tg3 *, int);
5301 static int tg3_halt(struct tg3 *, int, int);
5302
5303 /* Restart hardware after configuration changes, self-test, etc.
5304  * Invoked with tp->lock held.
5305  */
5306 static int tg3_restart_hw(struct tg3 *tp, int reset_phy)
5307         __releases(tp->lock)
5308         __acquires(tp->lock)
5309 {
5310         int err;
5311
5312         err = tg3_init_hw(tp, reset_phy);
5313         if (err) {
5314                 netdev_err(tp->dev,
5315                            "Failed to re-initialize device, aborting\n");
5316                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
5317                 tg3_full_unlock(tp);
5318                 del_timer_sync(&tp->timer);
5319                 tp->irq_sync = 0;
5320                 tg3_napi_enable(tp);
5321                 dev_close(tp->dev);
5322                 tg3_full_lock(tp, 0);
5323         }
5324         return err;
5325 }
5326
5327 #ifdef CONFIG_NET_POLL_CONTROLLER
5328 static void tg3_poll_controller(struct net_device *dev)
5329 {
5330         int i;
5331         struct tg3 *tp = netdev_priv(dev);
5332
5333         for (i = 0; i < tp->irq_cnt; i++)
5334                 tg3_interrupt(tp->napi[i].irq_vec, &tp->napi[i]);
5335 }
5336 #endif
5337
5338 static void tg3_reset_task(struct work_struct *work)
5339 {
5340         struct tg3 *tp = container_of(work, struct tg3, reset_task);
5341         int err;
5342         unsigned int restart_timer;
5343
5344         tg3_full_lock(tp, 0);
5345
5346         if (!netif_running(tp->dev)) {
5347                 tg3_full_unlock(tp);
5348                 return;
5349         }
5350
5351         tg3_full_unlock(tp);
5352
5353         tg3_phy_stop(tp);
5354
5355         tg3_netif_stop(tp);
5356
5357         tg3_full_lock(tp, 1);
5358
5359         restart_timer = tp->tg3_flags2 & TG3_FLG2_RESTART_TIMER;
5360         tp->tg3_flags2 &= ~TG3_FLG2_RESTART_TIMER;
5361
5362         if (tp->tg3_flags & TG3_FLAG_TX_RECOVERY_PENDING) {
5363                 tp->write32_tx_mbox = tg3_write32_tx_mbox;
5364                 tp->write32_rx_mbox = tg3_write_flush_reg32;
5365                 tp->tg3_flags |= TG3_FLAG_MBOX_WRITE_REORDER;
5366                 tp->tg3_flags &= ~TG3_FLAG_TX_RECOVERY_PENDING;
5367         }
5368
5369         tg3_halt(tp, RESET_KIND_SHUTDOWN, 0);
5370         err = tg3_init_hw(tp, 1);
5371         if (err)
5372                 goto out;
5373
5374         tg3_netif_start(tp);
5375
5376         if (restart_timer)
5377                 mod_timer(&tp->timer, jiffies + 1);
5378
5379 out:
5380         tg3_full_unlock(tp);
5381
5382         if (!err)
5383                 tg3_phy_start(tp);
5384 }
5385
5386 static void tg3_dump_short_state(struct tg3 *tp)
5387 {
5388         netdev_err(tp->dev, "DEBUG: MAC_TX_STATUS[%08x] MAC_RX_STATUS[%08x]\n",
5389                    tr32(MAC_TX_STATUS), tr32(MAC_RX_STATUS));
5390         netdev_err(tp->dev, "DEBUG: RDMAC_STATUS[%08x] WDMAC_STATUS[%08x]\n",
5391                    tr32(RDMAC_STATUS), tr32(WDMAC_STATUS));
5392 }
5393
5394 static void tg3_tx_timeout(struct net_device *dev)
5395 {
5396         struct tg3 *tp = netdev_priv(dev);
5397
5398         if (netif_msg_tx_err(tp)) {
5399                 netdev_err(dev, "transmit timed out, resetting\n");
5400                 tg3_dump_short_state(tp);
5401         }
5402
5403         schedule_work(&tp->reset_task);
5404 }
5405
5406 /* Test for DMA buffers crossing any 4GB boundaries: 4G, 8G, etc */
5407 static inline int tg3_4g_overflow_test(dma_addr_t mapping, int len)
5408 {
5409         u32 base = (u32) mapping & 0xffffffff;
5410
5411         return ((base > 0xffffdcc0) &&
5412                 (base + len + 8 < base));
5413 }
5414
5415 /* Test for DMA addresses > 40-bit */
5416 static inline int tg3_40bit_overflow_test(struct tg3 *tp, dma_addr_t mapping,
5417                                           int len)
5418 {
5419 #if defined(CONFIG_HIGHMEM) && (BITS_PER_LONG == 64)
5420         if (tp->tg3_flags & TG3_FLAG_40BIT_DMA_BUG)
5421                 return (((u64) mapping + len) > DMA_BIT_MASK(40));
5422         return 0;
5423 #else
5424         return 0;
5425 #endif
5426 }
5427
5428 static void tg3_set_txd(struct tg3_napi *, int, dma_addr_t, int, u32, u32);
5429
5430 /* Workaround 4GB and 40-bit hardware DMA bugs. */
5431 static int tigon3_dma_hwbug_workaround(struct tg3_napi *tnapi,
5432                                        struct sk_buff *skb, u32 last_plus_one,
5433                                        u32 *start, u32 base_flags, u32 mss)
5434 {
5435         struct tg3 *tp = tnapi->tp;
5436         struct sk_buff *new_skb;
5437         dma_addr_t new_addr = 0;
5438         u32 entry = *start;
5439         int i, ret = 0;
5440
5441         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701)
5442                 new_skb = skb_copy(skb, GFP_ATOMIC);
5443         else {
5444                 int more_headroom = 4 - ((unsigned long)skb->data & 3);
5445
5446                 new_skb = skb_copy_expand(skb,
5447                                           skb_headroom(skb) + more_headroom,
5448                                           skb_tailroom(skb), GFP_ATOMIC);
5449         }
5450
5451         if (!new_skb) {
5452                 ret = -1;
5453         } else {
5454                 /* New SKB is guaranteed to be linear. */
5455                 entry = *start;
5456                 new_addr = pci_map_single(tp->pdev, new_skb->data, new_skb->len,
5457                                           PCI_DMA_TODEVICE);
5458                 /* Make sure the mapping succeeded */
5459                 if (pci_dma_mapping_error(tp->pdev, new_addr)) {
5460                         ret = -1;
5461                         dev_kfree_skb(new_skb);
5462                         new_skb = NULL;
5463
5464                 /* Make sure new skb does not cross any 4G boundaries.
5465                  * Drop the packet if it does.
5466                  */
5467                 } else if ((tp->tg3_flags3 & TG3_FLG3_4G_DMA_BNDRY_BUG) &&
5468                             tg3_4g_overflow_test(new_addr, new_skb->len)) {
5469                         pci_unmap_single(tp->pdev, new_addr, new_skb->len,
5470                                          PCI_DMA_TODEVICE);
5471                         ret = -1;
5472                         dev_kfree_skb(new_skb);
5473                         new_skb = NULL;
5474                 } else {
5475                         tg3_set_txd(tnapi, entry, new_addr, new_skb->len,
5476                                     base_flags, 1 | (mss << 1));
5477                         *start = NEXT_TX(entry);
5478                 }
5479         }
5480
5481         /* Now clean up the sw ring entries. */
5482         i = 0;
5483         while (entry != last_plus_one) {
5484                 int len;
5485
5486                 if (i == 0)
5487                         len = skb_headlen(skb);
5488                 else
5489                         len = skb_shinfo(skb)->frags[i-1].size;
5490
5491                 pci_unmap_single(tp->pdev,
5492                                  dma_unmap_addr(&tnapi->tx_buffers[entry],
5493                                                 mapping),
5494                                  len, PCI_DMA_TODEVICE);
5495                 if (i == 0) {
5496                         tnapi->tx_buffers[entry].skb = new_skb;
5497                         dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping,
5498                                            new_addr);
5499                 } else {
5500                         tnapi->tx_buffers[entry].skb = NULL;
5501                 }
5502                 entry = NEXT_TX(entry);
5503                 i++;
5504         }
5505
5506         dev_kfree_skb(skb);
5507
5508         return ret;
5509 }
5510
5511 static void tg3_set_txd(struct tg3_napi *tnapi, int entry,
5512                         dma_addr_t mapping, int len, u32 flags,
5513                         u32 mss_and_is_end)
5514 {
5515         struct tg3_tx_buffer_desc *txd = &tnapi->tx_ring[entry];
5516         int is_end = (mss_and_is_end & 0x1);
5517         u32 mss = (mss_and_is_end >> 1);
5518         u32 vlan_tag = 0;
5519
5520         if (is_end)
5521                 flags |= TXD_FLAG_END;
5522         if (flags & TXD_FLAG_VLAN) {
5523                 vlan_tag = flags >> 16;
5524                 flags &= 0xffff;
5525         }
5526         vlan_tag |= (mss << TXD_MSS_SHIFT);
5527
5528         txd->addr_hi = ((u64) mapping >> 32);
5529         txd->addr_lo = ((u64) mapping & 0xffffffff);
5530         txd->len_flags = (len << TXD_LEN_SHIFT) | flags;
5531         txd->vlan_tag = vlan_tag << TXD_VLAN_TAG_SHIFT;
5532 }
5533
5534 /* hard_start_xmit for devices that don't have any bugs and
5535  * support TG3_FLG2_HW_TSO_2 and TG3_FLG2_HW_TSO_3 only.
5536  */
5537 static netdev_tx_t tg3_start_xmit(struct sk_buff *skb,
5538                                   struct net_device *dev)
5539 {
5540         struct tg3 *tp = netdev_priv(dev);
5541         u32 len, entry, base_flags, mss;
5542         dma_addr_t mapping;
5543         struct tg3_napi *tnapi;
5544         struct netdev_queue *txq;
5545         unsigned int i, last;
5546
5547         txq = netdev_get_tx_queue(dev, skb_get_queue_mapping(skb));
5548         tnapi = &tp->napi[skb_get_queue_mapping(skb)];
5549         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
5550                 tnapi++;
5551
5552         /* We are running in BH disabled context with netif_tx_lock
5553          * and TX reclaim runs via tp->napi.poll inside of a software
5554          * interrupt.  Furthermore, IRQ processing runs lockless so we have
5555          * no IRQ context deadlocks to worry about either.  Rejoice!
5556          */
5557         if (unlikely(tg3_tx_avail(tnapi) <= (skb_shinfo(skb)->nr_frags + 1))) {
5558                 if (!netif_tx_queue_stopped(txq)) {
5559                         netif_tx_stop_queue(txq);
5560
5561                         /* This is a hard error, log it. */
5562                         netdev_err(dev,
5563                                    "BUG! Tx Ring full when queue awake!\n");
5564                 }
5565                 return NETDEV_TX_BUSY;
5566         }
5567
5568         entry = tnapi->tx_prod;
5569         base_flags = 0;
5570         mss = 0;
5571         if ((mss = skb_shinfo(skb)->gso_size) != 0) {
5572                 int tcp_opt_len, ip_tcp_len;
5573                 u32 hdrlen;
5574
5575                 if (skb_header_cloned(skb) &&
5576                     pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) {
5577                         dev_kfree_skb(skb);
5578                         goto out_unlock;
5579                 }
5580
5581                 if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6)
5582                         hdrlen = skb_headlen(skb) - ETH_HLEN;
5583                 else {
5584                         struct iphdr *iph = ip_hdr(skb);
5585
5586                         tcp_opt_len = tcp_optlen(skb);
5587                         ip_tcp_len = ip_hdrlen(skb) + sizeof(struct tcphdr);
5588
5589                         iph->check = 0;
5590                         iph->tot_len = htons(mss + ip_tcp_len + tcp_opt_len);
5591                         hdrlen = ip_tcp_len + tcp_opt_len;
5592                 }
5593
5594                 if (tp->tg3_flags2 & TG3_FLG2_HW_TSO_3) {
5595                         mss |= (hdrlen & 0xc) << 12;
5596                         if (hdrlen & 0x10)
5597                                 base_flags |= 0x00000010;
5598                         base_flags |= (hdrlen & 0x3e0) << 5;
5599                 } else
5600                         mss |= hdrlen << 9;
5601
5602                 base_flags |= (TXD_FLAG_CPU_PRE_DMA |
5603                                TXD_FLAG_CPU_POST_DMA);
5604
5605                 tcp_hdr(skb)->check = 0;
5606
5607         } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
5608                 base_flags |= TXD_FLAG_TCPUDP_CSUM;
5609         }
5610
5611 #if TG3_VLAN_TAG_USED
5612         if (tp->vlgrp != NULL && vlan_tx_tag_present(skb))
5613                 base_flags |= (TXD_FLAG_VLAN |
5614                                (vlan_tx_tag_get(skb) << 16));
5615 #endif
5616
5617         len = skb_headlen(skb);
5618
5619         /* Queue skb data, a.k.a. the main skb fragment. */
5620         mapping = pci_map_single(tp->pdev, skb->data, len, PCI_DMA_TODEVICE);
5621         if (pci_dma_mapping_error(tp->pdev, mapping)) {
5622                 dev_kfree_skb(skb);
5623                 goto out_unlock;
5624         }
5625
5626         tnapi->tx_buffers[entry].skb = skb;
5627         dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping, mapping);
5628
5629         if ((tp->tg3_flags3 & TG3_FLG3_USE_JUMBO_BDFLAG) &&
5630             !mss && skb->len > ETH_DATA_LEN)
5631                 base_flags |= TXD_FLAG_JMB_PKT;
5632
5633         tg3_set_txd(tnapi, entry, mapping, len, base_flags,
5634                     (skb_shinfo(skb)->nr_frags == 0) | (mss << 1));
5635
5636         entry = NEXT_TX(entry);
5637
5638         /* Now loop through additional data fragments, and queue them. */
5639         if (skb_shinfo(skb)->nr_frags > 0) {
5640                 last = skb_shinfo(skb)->nr_frags - 1;
5641                 for (i = 0; i <= last; i++) {
5642                         skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
5643
5644                         len = frag->size;
5645                         mapping = pci_map_page(tp->pdev,
5646                                                frag->page,
5647                                                frag->page_offset,
5648                                                len, PCI_DMA_TODEVICE);
5649                         if (pci_dma_mapping_error(tp->pdev, mapping))
5650                                 goto dma_error;
5651
5652                         tnapi->tx_buffers[entry].skb = NULL;
5653                         dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping,
5654                                            mapping);
5655
5656                         tg3_set_txd(tnapi, entry, mapping, len,
5657                                     base_flags, (i == last) | (mss << 1));
5658
5659                         entry = NEXT_TX(entry);
5660                 }
5661         }
5662
5663         /* Packets are ready, update Tx producer idx local and on card. */
5664         tw32_tx_mbox(tnapi->prodmbox, entry);
5665
5666         tnapi->tx_prod = entry;
5667         if (unlikely(tg3_tx_avail(tnapi) <= (MAX_SKB_FRAGS + 1))) {
5668                 netif_tx_stop_queue(txq);
5669                 if (tg3_tx_avail(tnapi) > TG3_TX_WAKEUP_THRESH(tnapi))
5670                         netif_tx_wake_queue(txq);
5671         }
5672
5673 out_unlock:
5674         mmiowb();
5675
5676         return NETDEV_TX_OK;
5677
5678 dma_error:
5679         last = i;
5680         entry = tnapi->tx_prod;
5681         tnapi->tx_buffers[entry].skb = NULL;
5682         pci_unmap_single(tp->pdev,
5683                          dma_unmap_addr(&tnapi->tx_buffers[entry], mapping),
5684                          skb_headlen(skb),
5685                          PCI_DMA_TODEVICE);
5686         for (i = 0; i <= last; i++) {
5687                 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
5688                 entry = NEXT_TX(entry);
5689
5690                 pci_unmap_page(tp->pdev,
5691                                dma_unmap_addr(&tnapi->tx_buffers[entry],
5692                                               mapping),
5693                                frag->size, PCI_DMA_TODEVICE);
5694         }
5695
5696         dev_kfree_skb(skb);
5697         return NETDEV_TX_OK;
5698 }
5699
5700 static netdev_tx_t tg3_start_xmit_dma_bug(struct sk_buff *,
5701                                           struct net_device *);
5702
5703 /* Use GSO to workaround a rare TSO bug that may be triggered when the
5704  * TSO header is greater than 80 bytes.
5705  */
5706 static int tg3_tso_bug(struct tg3 *tp, struct sk_buff *skb)
5707 {
5708         struct sk_buff *segs, *nskb;
5709         u32 frag_cnt_est = skb_shinfo(skb)->gso_segs * 3;
5710
5711         /* Estimate the number of fragments in the worst case */
5712         if (unlikely(tg3_tx_avail(&tp->napi[0]) <= frag_cnt_est)) {
5713                 netif_stop_queue(tp->dev);
5714                 if (tg3_tx_avail(&tp->napi[0]) <= frag_cnt_est)
5715                         return NETDEV_TX_BUSY;
5716
5717                 netif_wake_queue(tp->dev);
5718         }
5719
5720         segs = skb_gso_segment(skb, tp->dev->features & ~NETIF_F_TSO);
5721         if (IS_ERR(segs))
5722                 goto tg3_tso_bug_end;
5723
5724         do {
5725                 nskb = segs;
5726                 segs = segs->next;
5727                 nskb->next = NULL;
5728                 tg3_start_xmit_dma_bug(nskb, tp->dev);
5729         } while (segs);
5730
5731 tg3_tso_bug_end:
5732         dev_kfree_skb(skb);
5733
5734         return NETDEV_TX_OK;
5735 }
5736
5737 /* hard_start_xmit for devices that have the 4G bug and/or 40-bit bug and
5738  * support TG3_FLG2_HW_TSO_1 or firmware TSO only.
5739  */
5740 static netdev_tx_t tg3_start_xmit_dma_bug(struct sk_buff *skb,
5741                                           struct net_device *dev)
5742 {
5743         struct tg3 *tp = netdev_priv(dev);
5744         u32 len, entry, base_flags, mss;
5745         int would_hit_hwbug;
5746         dma_addr_t mapping;
5747         struct tg3_napi *tnapi;
5748         struct netdev_queue *txq;
5749         unsigned int i, last;
5750
5751         txq = netdev_get_tx_queue(dev, skb_get_queue_mapping(skb));
5752         tnapi = &tp->napi[skb_get_queue_mapping(skb)];
5753         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
5754                 tnapi++;
5755
5756         /* We are running in BH disabled context with netif_tx_lock
5757          * and TX reclaim runs via tp->napi.poll inside of a software
5758          * interrupt.  Furthermore, IRQ processing runs lockless so we have
5759          * no IRQ context deadlocks to worry about either.  Rejoice!
5760          */
5761         if (unlikely(tg3_tx_avail(tnapi) <= (skb_shinfo(skb)->nr_frags + 1))) {
5762                 if (!netif_tx_queue_stopped(txq)) {
5763                         netif_tx_stop_queue(txq);
5764
5765                         /* This is a hard error, log it. */
5766                         netdev_err(dev,
5767                                    "BUG! Tx Ring full when queue awake!\n");
5768                 }
5769                 return NETDEV_TX_BUSY;
5770         }
5771
5772         entry = tnapi->tx_prod;
5773         base_flags = 0;
5774         if (skb->ip_summed == CHECKSUM_PARTIAL)
5775                 base_flags |= TXD_FLAG_TCPUDP_CSUM;
5776
5777         if ((mss = skb_shinfo(skb)->gso_size) != 0) {
5778                 struct iphdr *iph;
5779                 u32 tcp_opt_len, ip_tcp_len, hdr_len;
5780
5781                 if (skb_header_cloned(skb) &&
5782                     pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) {
5783                         dev_kfree_skb(skb);
5784                         goto out_unlock;
5785                 }
5786
5787                 tcp_opt_len = tcp_optlen(skb);
5788                 ip_tcp_len = ip_hdrlen(skb) + sizeof(struct tcphdr);
5789
5790                 hdr_len = ip_tcp_len + tcp_opt_len;
5791                 if (unlikely((ETH_HLEN + hdr_len) > 80) &&
5792                              (tp->tg3_flags2 & TG3_FLG2_TSO_BUG))
5793                         return tg3_tso_bug(tp, skb);
5794
5795                 base_flags |= (TXD_FLAG_CPU_PRE_DMA |
5796                                TXD_FLAG_CPU_POST_DMA);
5797
5798                 iph = ip_hdr(skb);
5799                 iph->check = 0;
5800                 iph->tot_len = htons(mss + hdr_len);
5801                 if (tp->tg3_flags2 & TG3_FLG2_HW_TSO) {
5802                         tcp_hdr(skb)->check = 0;
5803                         base_flags &= ~TXD_FLAG_TCPUDP_CSUM;
5804                 } else
5805                         tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
5806                                                                  iph->daddr, 0,
5807                                                                  IPPROTO_TCP,
5808                                                                  0);
5809
5810                 if (tp->tg3_flags2 & TG3_FLG2_HW_TSO_3) {
5811                         mss |= (hdr_len & 0xc) << 12;
5812                         if (hdr_len & 0x10)
5813                                 base_flags |= 0x00000010;
5814                         base_flags |= (hdr_len & 0x3e0) << 5;
5815                 } else if (tp->tg3_flags2 & TG3_FLG2_HW_TSO_2)
5816                         mss |= hdr_len << 9;
5817                 else if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_1) ||
5818                          GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
5819                         if (tcp_opt_len || iph->ihl > 5) {
5820                                 int tsflags;
5821
5822                                 tsflags = (iph->ihl - 5) + (tcp_opt_len >> 2);
5823                                 mss |= (tsflags << 11);
5824                         }
5825                 } else {
5826                         if (tcp_opt_len || iph->ihl > 5) {
5827                                 int tsflags;
5828
5829                                 tsflags = (iph->ihl - 5) + (tcp_opt_len >> 2);
5830                                 base_flags |= tsflags << 12;
5831                         }
5832                 }
5833         }
5834 #if TG3_VLAN_TAG_USED
5835         if (tp->vlgrp != NULL && vlan_tx_tag_present(skb))
5836                 base_flags |= (TXD_FLAG_VLAN |
5837                                (vlan_tx_tag_get(skb) << 16));
5838 #endif
5839
5840         if ((tp->tg3_flags3 & TG3_FLG3_USE_JUMBO_BDFLAG) &&
5841             !mss && skb->len > ETH_DATA_LEN)
5842                 base_flags |= TXD_FLAG_JMB_PKT;
5843
5844         len = skb_headlen(skb);
5845
5846         mapping = pci_map_single(tp->pdev, skb->data, len, PCI_DMA_TODEVICE);
5847         if (pci_dma_mapping_error(tp->pdev, mapping)) {
5848                 dev_kfree_skb(skb);
5849                 goto out_unlock;
5850         }
5851
5852         tnapi->tx_buffers[entry].skb = skb;
5853         dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping, mapping);
5854
5855         would_hit_hwbug = 0;
5856
5857         if ((tp->tg3_flags3 & TG3_FLG3_SHORT_DMA_BUG) && len <= 8)
5858                 would_hit_hwbug = 1;
5859
5860         if ((tp->tg3_flags3 & TG3_FLG3_4G_DMA_BNDRY_BUG) &&
5861             tg3_4g_overflow_test(mapping, len))
5862                 would_hit_hwbug = 1;
5863
5864         if ((tp->tg3_flags3 & TG3_FLG3_40BIT_DMA_LIMIT_BUG) &&
5865             tg3_40bit_overflow_test(tp, mapping, len))
5866                 would_hit_hwbug = 1;
5867
5868         if (tp->tg3_flags3 & TG3_FLG3_5701_DMA_BUG)
5869                 would_hit_hwbug = 1;
5870
5871         tg3_set_txd(tnapi, entry, mapping, len, base_flags,
5872                     (skb_shinfo(skb)->nr_frags == 0) | (mss << 1));
5873
5874         entry = NEXT_TX(entry);
5875
5876         /* Now loop through additional data fragments, and queue them. */
5877         if (skb_shinfo(skb)->nr_frags > 0) {
5878                 last = skb_shinfo(skb)->nr_frags - 1;
5879                 for (i = 0; i <= last; i++) {
5880                         skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
5881
5882                         len = frag->size;
5883                         mapping = pci_map_page(tp->pdev,
5884                                                frag->page,
5885                                                frag->page_offset,
5886                                                len, PCI_DMA_TODEVICE);
5887
5888                         tnapi->tx_buffers[entry].skb = NULL;
5889                         dma_unmap_addr_set(&tnapi->tx_buffers[entry], mapping,
5890                                            mapping);
5891                         if (pci_dma_mapping_error(tp->pdev, mapping))
5892                                 goto dma_error;
5893
5894                         if ((tp->tg3_flags3 & TG3_FLG3_SHORT_DMA_BUG) &&
5895                             len <= 8)
5896                                 would_hit_hwbug = 1;
5897
5898                         if ((tp->tg3_flags3 & TG3_FLG3_4G_DMA_BNDRY_BUG) &&
5899                             tg3_4g_overflow_test(mapping, len))
5900                                 would_hit_hwbug = 1;
5901
5902                         if ((tp->tg3_flags3 & TG3_FLG3_40BIT_DMA_LIMIT_BUG) &&
5903                             tg3_40bit_overflow_test(tp, mapping, len))
5904                                 would_hit_hwbug = 1;
5905
5906                         if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
5907                                 tg3_set_txd(tnapi, entry, mapping, len,
5908                                             base_flags, (i == last)|(mss << 1));
5909                         else
5910                                 tg3_set_txd(tnapi, entry, mapping, len,
5911                                             base_flags, (i == last));
5912
5913                         entry = NEXT_TX(entry);
5914                 }
5915         }
5916
5917         if (would_hit_hwbug) {
5918                 u32 last_plus_one = entry;
5919                 u32 start;
5920
5921                 start = entry - 1 - skb_shinfo(skb)->nr_frags;
5922                 start &= (TG3_TX_RING_SIZE - 1);
5923
5924                 /* If the workaround fails due to memory/mapping
5925                  * failure, silently drop this packet.
5926                  */
5927                 if (tigon3_dma_hwbug_workaround(tnapi, skb, last_plus_one,
5928                                                 &start, base_flags, mss))
5929                         goto out_unlock;
5930
5931                 entry = start;
5932         }
5933
5934         /* Packets are ready, update Tx producer idx local and on card. */
5935         tw32_tx_mbox(tnapi->prodmbox, entry);
5936
5937         tnapi->tx_prod = entry;
5938         if (unlikely(tg3_tx_avail(tnapi) <= (MAX_SKB_FRAGS + 1))) {
5939                 netif_tx_stop_queue(txq);
5940                 if (tg3_tx_avail(tnapi) > TG3_TX_WAKEUP_THRESH(tnapi))
5941                         netif_tx_wake_queue(txq);
5942         }
5943
5944 out_unlock:
5945         mmiowb();
5946
5947         return NETDEV_TX_OK;
5948
5949 dma_error:
5950         last = i;
5951         entry = tnapi->tx_prod;
5952         tnapi->tx_buffers[entry].skb = NULL;
5953         pci_unmap_single(tp->pdev,
5954                          dma_unmap_addr(&tnapi->tx_buffers[entry], mapping),
5955                          skb_headlen(skb),
5956                          PCI_DMA_TODEVICE);
5957         for (i = 0; i <= last; i++) {
5958                 skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
5959                 entry = NEXT_TX(entry);
5960
5961                 pci_unmap_page(tp->pdev,
5962                                dma_unmap_addr(&tnapi->tx_buffers[entry],
5963                                               mapping),
5964                                frag->size, PCI_DMA_TODEVICE);
5965         }
5966
5967         dev_kfree_skb(skb);
5968         return NETDEV_TX_OK;
5969 }
5970
5971 static inline void tg3_set_mtu(struct net_device *dev, struct tg3 *tp,
5972                                int new_mtu)
5973 {
5974         dev->mtu = new_mtu;
5975
5976         if (new_mtu > ETH_DATA_LEN) {
5977                 if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) {
5978                         tp->tg3_flags2 &= ~TG3_FLG2_TSO_CAPABLE;
5979                         ethtool_op_set_tso(dev, 0);
5980                 } else {
5981                         tp->tg3_flags |= TG3_FLAG_JUMBO_RING_ENABLE;
5982                 }
5983         } else {
5984                 if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)
5985                         tp->tg3_flags2 |= TG3_FLG2_TSO_CAPABLE;
5986                 tp->tg3_flags &= ~TG3_FLAG_JUMBO_RING_ENABLE;
5987         }
5988 }
5989
5990 static int tg3_change_mtu(struct net_device *dev, int new_mtu)
5991 {
5992         struct tg3 *tp = netdev_priv(dev);
5993         int err;
5994
5995         if (new_mtu < TG3_MIN_MTU || new_mtu > TG3_MAX_MTU(tp))
5996                 return -EINVAL;
5997
5998         if (!netif_running(dev)) {
5999                 /* We'll just catch it later when the
6000                  * device is up'd.
6001                  */
6002                 tg3_set_mtu(dev, tp, new_mtu);
6003                 return 0;
6004         }
6005
6006         tg3_phy_stop(tp);
6007
6008         tg3_netif_stop(tp);
6009
6010         tg3_full_lock(tp, 1);
6011
6012         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
6013
6014         tg3_set_mtu(dev, tp, new_mtu);
6015
6016         err = tg3_restart_hw(tp, 0);
6017
6018         if (!err)
6019                 tg3_netif_start(tp);
6020
6021         tg3_full_unlock(tp);
6022
6023         if (!err)
6024                 tg3_phy_start(tp);
6025
6026         return err;
6027 }
6028
6029 static void tg3_rx_prodring_free(struct tg3 *tp,
6030                                  struct tg3_rx_prodring_set *tpr)
6031 {
6032         int i;
6033
6034         if (tpr != &tp->prodring[0]) {
6035                 for (i = tpr->rx_std_cons_idx; i != tpr->rx_std_prod_idx;
6036                      i = (i + 1) % TG3_RX_RING_SIZE)
6037                         tg3_rx_skb_free(tp, &tpr->rx_std_buffers[i],
6038                                         tp->rx_pkt_map_sz);
6039
6040                 if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) {
6041                         for (i = tpr->rx_jmb_cons_idx;
6042                              i != tpr->rx_jmb_prod_idx;
6043                              i = (i + 1) % TG3_RX_JUMBO_RING_SIZE) {
6044                                 tg3_rx_skb_free(tp, &tpr->rx_jmb_buffers[i],
6045                                                 TG3_RX_JMB_MAP_SZ);
6046                         }
6047                 }
6048
6049                 return;
6050         }
6051
6052         for (i = 0; i < TG3_RX_RING_SIZE; i++)
6053                 tg3_rx_skb_free(tp, &tpr->rx_std_buffers[i],
6054                                 tp->rx_pkt_map_sz);
6055
6056         if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) {
6057                 for (i = 0; i < TG3_RX_JUMBO_RING_SIZE; i++)
6058                         tg3_rx_skb_free(tp, &tpr->rx_jmb_buffers[i],
6059                                         TG3_RX_JMB_MAP_SZ);
6060         }
6061 }
6062
6063 /* Initialize rx rings for packet processing.
6064  *
6065  * The chip has been shut down and the driver detached from
6066  * the networking, so no interrupts or new tx packets will
6067  * end up in the driver.  tp->{tx,}lock are held and thus
6068  * we may not sleep.
6069  */
6070 static int tg3_rx_prodring_alloc(struct tg3 *tp,
6071                                  struct tg3_rx_prodring_set *tpr)
6072 {
6073         u32 i, rx_pkt_dma_sz;
6074
6075         tpr->rx_std_cons_idx = 0;
6076         tpr->rx_std_prod_idx = 0;
6077         tpr->rx_jmb_cons_idx = 0;
6078         tpr->rx_jmb_prod_idx = 0;
6079
6080         if (tpr != &tp->prodring[0]) {
6081                 memset(&tpr->rx_std_buffers[0], 0, TG3_RX_STD_BUFF_RING_SIZE);
6082                 if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE)
6083                         memset(&tpr->rx_jmb_buffers[0], 0,
6084                                TG3_RX_JMB_BUFF_RING_SIZE);
6085                 goto done;
6086         }
6087
6088         /* Zero out all descriptors. */
6089         memset(tpr->rx_std, 0, TG3_RX_RING_BYTES);
6090
6091         rx_pkt_dma_sz = TG3_RX_STD_DMA_SZ;
6092         if ((tp->tg3_flags2 & TG3_FLG2_5780_CLASS) &&
6093             tp->dev->mtu > ETH_DATA_LEN)
6094                 rx_pkt_dma_sz = TG3_RX_JMB_DMA_SZ;
6095         tp->rx_pkt_map_sz = TG3_RX_DMA_TO_MAP_SZ(rx_pkt_dma_sz);
6096
6097         /* Initialize invariants of the rings, we only set this
6098          * stuff once.  This works because the card does not
6099          * write into the rx buffer posting rings.
6100          */
6101         for (i = 0; i < TG3_RX_RING_SIZE; i++) {
6102                 struct tg3_rx_buffer_desc *rxd;
6103
6104                 rxd = &tpr->rx_std[i];
6105                 rxd->idx_len = rx_pkt_dma_sz << RXD_LEN_SHIFT;
6106                 rxd->type_flags = (RXD_FLAG_END << RXD_FLAGS_SHIFT);
6107                 rxd->opaque = (RXD_OPAQUE_RING_STD |
6108                                (i << RXD_OPAQUE_INDEX_SHIFT));
6109         }
6110
6111         /* Now allocate fresh SKBs for each rx ring. */
6112         for (i = 0; i < tp->rx_pending; i++) {
6113                 if (tg3_alloc_rx_skb(tp, tpr, RXD_OPAQUE_RING_STD, i) < 0) {
6114                         netdev_warn(tp->dev,
6115                                     "Using a smaller RX standard ring. Only "
6116                                     "%d out of %d buffers were allocated "
6117                                     "successfully\n", i, tp->rx_pending);
6118                         if (i == 0)
6119                                 goto initfail;
6120                         tp->rx_pending = i;
6121                         break;
6122                 }
6123         }
6124
6125         if (!(tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE))
6126                 goto done;
6127
6128         memset(tpr->rx_jmb, 0, TG3_RX_JUMBO_RING_BYTES);
6129
6130         if (!(tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE))
6131                 goto done;
6132
6133         for (i = 0; i < TG3_RX_JUMBO_RING_SIZE; i++) {
6134                 struct tg3_rx_buffer_desc *rxd;
6135
6136                 rxd = &tpr->rx_jmb[i].std;
6137                 rxd->idx_len = TG3_RX_JMB_DMA_SZ << RXD_LEN_SHIFT;
6138                 rxd->type_flags = (RXD_FLAG_END << RXD_FLAGS_SHIFT) |
6139                                   RXD_FLAG_JUMBO;
6140                 rxd->opaque = (RXD_OPAQUE_RING_JUMBO |
6141                        (i << RXD_OPAQUE_INDEX_SHIFT));
6142         }
6143
6144         for (i = 0; i < tp->rx_jumbo_pending; i++) {
6145                 if (tg3_alloc_rx_skb(tp, tpr, RXD_OPAQUE_RING_JUMBO, i) < 0) {
6146                         netdev_warn(tp->dev,
6147                                     "Using a smaller RX jumbo ring. Only %d "
6148                                     "out of %d buffers were allocated "
6149                                     "successfully\n", i, tp->rx_jumbo_pending);
6150                         if (i == 0)
6151                                 goto initfail;
6152                         tp->rx_jumbo_pending = i;
6153                         break;
6154                 }
6155         }
6156
6157 done:
6158         return 0;
6159
6160 initfail:
6161         tg3_rx_prodring_free(tp, tpr);
6162         return -ENOMEM;
6163 }
6164
6165 static void tg3_rx_prodring_fini(struct tg3 *tp,
6166                                  struct tg3_rx_prodring_set *tpr)
6167 {
6168         kfree(tpr->rx_std_buffers);
6169         tpr->rx_std_buffers = NULL;
6170         kfree(tpr->rx_jmb_buffers);
6171         tpr->rx_jmb_buffers = NULL;
6172         if (tpr->rx_std) {
6173                 pci_free_consistent(tp->pdev, TG3_RX_RING_BYTES,
6174                                     tpr->rx_std, tpr->rx_std_mapping);
6175                 tpr->rx_std = NULL;
6176         }
6177         if (tpr->rx_jmb) {
6178                 pci_free_consistent(tp->pdev, TG3_RX_JUMBO_RING_BYTES,
6179                                     tpr->rx_jmb, tpr->rx_jmb_mapping);
6180                 tpr->rx_jmb = NULL;
6181         }
6182 }
6183
6184 static int tg3_rx_prodring_init(struct tg3 *tp,
6185                                 struct tg3_rx_prodring_set *tpr)
6186 {
6187         tpr->rx_std_buffers = kzalloc(TG3_RX_STD_BUFF_RING_SIZE, GFP_KERNEL);
6188         if (!tpr->rx_std_buffers)
6189                 return -ENOMEM;
6190
6191         tpr->rx_std = pci_alloc_consistent(tp->pdev, TG3_RX_RING_BYTES,
6192                                            &tpr->rx_std_mapping);
6193         if (!tpr->rx_std)
6194                 goto err_out;
6195
6196         if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) {
6197                 tpr->rx_jmb_buffers = kzalloc(TG3_RX_JMB_BUFF_RING_SIZE,
6198                                               GFP_KERNEL);
6199                 if (!tpr->rx_jmb_buffers)
6200                         goto err_out;
6201
6202                 tpr->rx_jmb = pci_alloc_consistent(tp->pdev,
6203                                                    TG3_RX_JUMBO_RING_BYTES,
6204                                                    &tpr->rx_jmb_mapping);
6205                 if (!tpr->rx_jmb)
6206                         goto err_out;
6207         }
6208
6209         return 0;
6210
6211 err_out:
6212         tg3_rx_prodring_fini(tp, tpr);
6213         return -ENOMEM;
6214 }
6215
6216 /* Free up pending packets in all rx/tx rings.
6217  *
6218  * The chip has been shut down and the driver detached from
6219  * the networking, so no interrupts or new tx packets will
6220  * end up in the driver.  tp->{tx,}lock is not held and we are not
6221  * in an interrupt context and thus may sleep.
6222  */
6223 static void tg3_free_rings(struct tg3 *tp)
6224 {
6225         int i, j;
6226
6227         for (j = 0; j < tp->irq_cnt; j++) {
6228                 struct tg3_napi *tnapi = &tp->napi[j];
6229
6230                 tg3_rx_prodring_free(tp, &tp->prodring[j]);
6231
6232                 if (!tnapi->tx_buffers)
6233                         continue;
6234
6235                 for (i = 0; i < TG3_TX_RING_SIZE; ) {
6236                         struct ring_info *txp;
6237                         struct sk_buff *skb;
6238                         unsigned int k;
6239
6240                         txp = &tnapi->tx_buffers[i];
6241                         skb = txp->skb;
6242
6243                         if (skb == NULL) {
6244                                 i++;
6245                                 continue;
6246                         }
6247
6248                         pci_unmap_single(tp->pdev,
6249                                          dma_unmap_addr(txp, mapping),
6250                                          skb_headlen(skb),
6251                                          PCI_DMA_TODEVICE);
6252                         txp->skb = NULL;
6253
6254                         i++;
6255
6256                         for (k = 0; k < skb_shinfo(skb)->nr_frags; k++) {
6257                                 txp = &tnapi->tx_buffers[i & (TG3_TX_RING_SIZE - 1)];
6258                                 pci_unmap_page(tp->pdev,
6259                                                dma_unmap_addr(txp, mapping),
6260                                                skb_shinfo(skb)->frags[k].size,
6261                                                PCI_DMA_TODEVICE);
6262                                 i++;
6263                         }
6264
6265                         dev_kfree_skb_any(skb);
6266                 }
6267         }
6268 }
6269
6270 /* Initialize tx/rx rings for packet processing.
6271  *
6272  * The chip has been shut down and the driver detached from
6273  * the networking, so no interrupts or new tx packets will
6274  * end up in the driver.  tp->{tx,}lock are held and thus
6275  * we may not sleep.
6276  */
6277 static int tg3_init_rings(struct tg3 *tp)
6278 {
6279         int i;
6280
6281         /* Free up all the SKBs. */
6282         tg3_free_rings(tp);
6283
6284         for (i = 0; i < tp->irq_cnt; i++) {
6285                 struct tg3_napi *tnapi = &tp->napi[i];
6286
6287                 tnapi->last_tag = 0;
6288                 tnapi->last_irq_tag = 0;
6289                 tnapi->hw_status->status = 0;
6290                 tnapi->hw_status->status_tag = 0;
6291                 memset(tnapi->hw_status, 0, TG3_HW_STATUS_SIZE);
6292
6293                 tnapi->tx_prod = 0;
6294                 tnapi->tx_cons = 0;
6295                 if (tnapi->tx_ring)
6296                         memset(tnapi->tx_ring, 0, TG3_TX_RING_BYTES);
6297
6298                 tnapi->rx_rcb_ptr = 0;
6299                 if (tnapi->rx_rcb)
6300                         memset(tnapi->rx_rcb, 0, TG3_RX_RCB_RING_BYTES(tp));
6301
6302                 if (tg3_rx_prodring_alloc(tp, &tp->prodring[i])) {
6303                         tg3_free_rings(tp);
6304                         return -ENOMEM;
6305                 }
6306         }
6307
6308         return 0;
6309 }
6310
6311 /*
6312  * Must not be invoked with interrupt sources disabled and
6313  * the hardware shutdown down.
6314  */
6315 static void tg3_free_consistent(struct tg3 *tp)
6316 {
6317         int i;
6318
6319         for (i = 0; i < tp->irq_cnt; i++) {
6320                 struct tg3_napi *tnapi = &tp->napi[i];
6321
6322                 if (tnapi->tx_ring) {
6323                         pci_free_consistent(tp->pdev, TG3_TX_RING_BYTES,
6324                                 tnapi->tx_ring, tnapi->tx_desc_mapping);
6325                         tnapi->tx_ring = NULL;
6326                 }
6327
6328                 kfree(tnapi->tx_buffers);
6329                 tnapi->tx_buffers = NULL;
6330
6331                 if (tnapi->rx_rcb) {
6332                         pci_free_consistent(tp->pdev, TG3_RX_RCB_RING_BYTES(tp),
6333                                             tnapi->rx_rcb,
6334                                             tnapi->rx_rcb_mapping);
6335                         tnapi->rx_rcb = NULL;
6336                 }
6337
6338                 if (tnapi->hw_status) {
6339                         pci_free_consistent(tp->pdev, TG3_HW_STATUS_SIZE,
6340                                             tnapi->hw_status,
6341                                             tnapi->status_mapping);
6342                         tnapi->hw_status = NULL;
6343                 }
6344         }
6345
6346         if (tp->hw_stats) {
6347                 pci_free_consistent(tp->pdev, sizeof(struct tg3_hw_stats),
6348                                     tp->hw_stats, tp->stats_mapping);
6349                 tp->hw_stats = NULL;
6350         }
6351
6352         for (i = 0; i < tp->irq_cnt; i++)
6353                 tg3_rx_prodring_fini(tp, &tp->prodring[i]);
6354 }
6355
6356 /*
6357  * Must not be invoked with interrupt sources disabled and
6358  * the hardware shutdown down.  Can sleep.
6359  */
6360 static int tg3_alloc_consistent(struct tg3 *tp)
6361 {
6362         int i;
6363
6364         for (i = 0; i < tp->irq_cnt; i++) {
6365                 if (tg3_rx_prodring_init(tp, &tp->prodring[i]))
6366                         goto err_out;
6367         }
6368
6369         tp->hw_stats = pci_alloc_consistent(tp->pdev,
6370                                             sizeof(struct tg3_hw_stats),
6371                                             &tp->stats_mapping);
6372         if (!tp->hw_stats)
6373                 goto err_out;
6374
6375         memset(tp->hw_stats, 0, sizeof(struct tg3_hw_stats));
6376
6377         for (i = 0; i < tp->irq_cnt; i++) {
6378                 struct tg3_napi *tnapi = &tp->napi[i];
6379                 struct tg3_hw_status *sblk;
6380
6381                 tnapi->hw_status = pci_alloc_consistent(tp->pdev,
6382                                                         TG3_HW_STATUS_SIZE,
6383                                                         &tnapi->status_mapping);
6384                 if (!tnapi->hw_status)
6385                         goto err_out;
6386
6387                 memset(tnapi->hw_status, 0, TG3_HW_STATUS_SIZE);
6388                 sblk = tnapi->hw_status;
6389
6390                 /* If multivector TSS is enabled, vector 0 does not handle
6391                  * tx interrupts.  Don't allocate any resources for it.
6392                  */
6393                 if ((!i && !(tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)) ||
6394                     (i && (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS))) {
6395                         tnapi->tx_buffers = kzalloc(sizeof(struct ring_info) *
6396                                                     TG3_TX_RING_SIZE,
6397                                                     GFP_KERNEL);
6398                         if (!tnapi->tx_buffers)
6399                                 goto err_out;
6400
6401                         tnapi->tx_ring = pci_alloc_consistent(tp->pdev,
6402                                                               TG3_TX_RING_BYTES,
6403                                                        &tnapi->tx_desc_mapping);
6404                         if (!tnapi->tx_ring)
6405                                 goto err_out;
6406                 }
6407
6408                 /*
6409                  * When RSS is enabled, the status block format changes
6410                  * slightly.  The "rx_jumbo_consumer", "reserved",
6411                  * and "rx_mini_consumer" members get mapped to the
6412                  * other three rx return ring producer indexes.
6413                  */
6414                 switch (i) {
6415                 default:
6416                         tnapi->rx_rcb_prod_idx = &sblk->idx[0].rx_producer;
6417                         break;
6418                 case 2:
6419                         tnapi->rx_rcb_prod_idx = &sblk->rx_jumbo_consumer;
6420                         break;
6421                 case 3:
6422                         tnapi->rx_rcb_prod_idx = &sblk->reserved;
6423                         break;
6424                 case 4:
6425                         tnapi->rx_rcb_prod_idx = &sblk->rx_mini_consumer;
6426                         break;
6427                 }
6428
6429                 tnapi->prodring = &tp->prodring[i];
6430
6431                 /*
6432                  * If multivector RSS is enabled, vector 0 does not handle
6433                  * rx or tx interrupts.  Don't allocate any resources for it.
6434                  */
6435                 if (!i && (tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS))
6436                         continue;
6437
6438                 tnapi->rx_rcb = pci_alloc_consistent(tp->pdev,
6439                                                      TG3_RX_RCB_RING_BYTES(tp),
6440                                                      &tnapi->rx_rcb_mapping);
6441                 if (!tnapi->rx_rcb)
6442                         goto err_out;
6443
6444                 memset(tnapi->rx_rcb, 0, TG3_RX_RCB_RING_BYTES(tp));
6445         }
6446
6447         return 0;
6448
6449 err_out:
6450         tg3_free_consistent(tp);
6451         return -ENOMEM;
6452 }
6453
6454 #define MAX_WAIT_CNT 1000
6455
6456 /* To stop a block, clear the enable bit and poll till it
6457  * clears.  tp->lock is held.
6458  */
6459 static int tg3_stop_block(struct tg3 *tp, unsigned long ofs, u32 enable_bit, int silent)
6460 {
6461         unsigned int i;
6462         u32 val;
6463
6464         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
6465                 switch (ofs) {
6466                 case RCVLSC_MODE:
6467                 case DMAC_MODE:
6468                 case MBFREE_MODE:
6469                 case BUFMGR_MODE:
6470                 case MEMARB_MODE:
6471                         /* We can't enable/disable these bits of the
6472                          * 5705/5750, just say success.
6473                          */
6474                         return 0;
6475
6476                 default:
6477                         break;
6478                 }
6479         }
6480
6481         val = tr32(ofs);
6482         val &= ~enable_bit;
6483         tw32_f(ofs, val);
6484
6485         for (i = 0; i < MAX_WAIT_CNT; i++) {
6486                 udelay(100);
6487                 val = tr32(ofs);
6488                 if ((val & enable_bit) == 0)
6489                         break;
6490         }
6491
6492         if (i == MAX_WAIT_CNT && !silent) {
6493                 dev_err(&tp->pdev->dev,
6494                         "tg3_stop_block timed out, ofs=%lx enable_bit=%x\n",
6495                         ofs, enable_bit);
6496                 return -ENODEV;
6497         }
6498
6499         return 0;
6500 }
6501
6502 /* tp->lock is held. */
6503 static int tg3_abort_hw(struct tg3 *tp, int silent)
6504 {
6505         int i, err;
6506
6507         tg3_disable_ints(tp);
6508
6509         tp->rx_mode &= ~RX_MODE_ENABLE;
6510         tw32_f(MAC_RX_MODE, tp->rx_mode);
6511         udelay(10);
6512
6513         err  = tg3_stop_block(tp, RCVBDI_MODE, RCVBDI_MODE_ENABLE, silent);
6514         err |= tg3_stop_block(tp, RCVLPC_MODE, RCVLPC_MODE_ENABLE, silent);
6515         err |= tg3_stop_block(tp, RCVLSC_MODE, RCVLSC_MODE_ENABLE, silent);
6516         err |= tg3_stop_block(tp, RCVDBDI_MODE, RCVDBDI_MODE_ENABLE, silent);
6517         err |= tg3_stop_block(tp, RCVDCC_MODE, RCVDCC_MODE_ENABLE, silent);
6518         err |= tg3_stop_block(tp, RCVCC_MODE, RCVCC_MODE_ENABLE, silent);
6519
6520         err |= tg3_stop_block(tp, SNDBDS_MODE, SNDBDS_MODE_ENABLE, silent);
6521         err |= tg3_stop_block(tp, SNDBDI_MODE, SNDBDI_MODE_ENABLE, silent);
6522         err |= tg3_stop_block(tp, SNDDATAI_MODE, SNDDATAI_MODE_ENABLE, silent);
6523         err |= tg3_stop_block(tp, RDMAC_MODE, RDMAC_MODE_ENABLE, silent);
6524         err |= tg3_stop_block(tp, SNDDATAC_MODE, SNDDATAC_MODE_ENABLE, silent);
6525         err |= tg3_stop_block(tp, DMAC_MODE, DMAC_MODE_ENABLE, silent);
6526         err |= tg3_stop_block(tp, SNDBDC_MODE, SNDBDC_MODE_ENABLE, silent);
6527
6528         tp->mac_mode &= ~MAC_MODE_TDE_ENABLE;
6529         tw32_f(MAC_MODE, tp->mac_mode);
6530         udelay(40);
6531
6532         tp->tx_mode &= ~TX_MODE_ENABLE;
6533         tw32_f(MAC_TX_MODE, tp->tx_mode);
6534
6535         for (i = 0; i < MAX_WAIT_CNT; i++) {
6536                 udelay(100);
6537                 if (!(tr32(MAC_TX_MODE) & TX_MODE_ENABLE))
6538                         break;
6539         }
6540         if (i >= MAX_WAIT_CNT) {
6541                 dev_err(&tp->pdev->dev,
6542                         "%s timed out, TX_MODE_ENABLE will not clear "
6543                         "MAC_TX_MODE=%08x\n", __func__, tr32(MAC_TX_MODE));
6544                 err |= -ENODEV;
6545         }
6546
6547         err |= tg3_stop_block(tp, HOSTCC_MODE, HOSTCC_MODE_ENABLE, silent);
6548         err |= tg3_stop_block(tp, WDMAC_MODE, WDMAC_MODE_ENABLE, silent);
6549         err |= tg3_stop_block(tp, MBFREE_MODE, MBFREE_MODE_ENABLE, silent);
6550
6551         tw32(FTQ_RESET, 0xffffffff);
6552         tw32(FTQ_RESET, 0x00000000);
6553
6554         err |= tg3_stop_block(tp, BUFMGR_MODE, BUFMGR_MODE_ENABLE, silent);
6555         err |= tg3_stop_block(tp, MEMARB_MODE, MEMARB_MODE_ENABLE, silent);
6556
6557         for (i = 0; i < tp->irq_cnt; i++) {
6558                 struct tg3_napi *tnapi = &tp->napi[i];
6559                 if (tnapi->hw_status)
6560                         memset(tnapi->hw_status, 0, TG3_HW_STATUS_SIZE);
6561         }
6562         if (tp->hw_stats)
6563                 memset(tp->hw_stats, 0, sizeof(struct tg3_hw_stats));
6564
6565         return err;
6566 }
6567
6568 static void tg3_ape_send_event(struct tg3 *tp, u32 event)
6569 {
6570         int i;
6571         u32 apedata;
6572
6573         apedata = tg3_ape_read32(tp, TG3_APE_SEG_SIG);
6574         if (apedata != APE_SEG_SIG_MAGIC)
6575                 return;
6576
6577         apedata = tg3_ape_read32(tp, TG3_APE_FW_STATUS);
6578         if (!(apedata & APE_FW_STATUS_READY))
6579                 return;
6580
6581         /* Wait for up to 1 millisecond for APE to service previous event. */
6582         for (i = 0; i < 10; i++) {
6583                 if (tg3_ape_lock(tp, TG3_APE_LOCK_MEM))
6584                         return;
6585
6586                 apedata = tg3_ape_read32(tp, TG3_APE_EVENT_STATUS);
6587
6588                 if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING))
6589                         tg3_ape_write32(tp, TG3_APE_EVENT_STATUS,
6590                                         event | APE_EVENT_STATUS_EVENT_PENDING);
6591
6592                 tg3_ape_unlock(tp, TG3_APE_LOCK_MEM);
6593
6594                 if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING))
6595                         break;
6596
6597                 udelay(100);
6598         }
6599
6600         if (!(apedata & APE_EVENT_STATUS_EVENT_PENDING))
6601                 tg3_ape_write32(tp, TG3_APE_EVENT, APE_EVENT_1);
6602 }
6603
6604 static void tg3_ape_driver_state_change(struct tg3 *tp, int kind)
6605 {
6606         u32 event;
6607         u32 apedata;
6608
6609         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE))
6610                 return;
6611
6612         switch (kind) {
6613         case RESET_KIND_INIT:
6614                 tg3_ape_write32(tp, TG3_APE_HOST_SEG_SIG,
6615                                 APE_HOST_SEG_SIG_MAGIC);
6616                 tg3_ape_write32(tp, TG3_APE_HOST_SEG_LEN,
6617                                 APE_HOST_SEG_LEN_MAGIC);
6618                 apedata = tg3_ape_read32(tp, TG3_APE_HOST_INIT_COUNT);
6619                 tg3_ape_write32(tp, TG3_APE_HOST_INIT_COUNT, ++apedata);
6620                 tg3_ape_write32(tp, TG3_APE_HOST_DRIVER_ID,
6621                                 APE_HOST_DRIVER_ID_MAGIC);
6622                 tg3_ape_write32(tp, TG3_APE_HOST_BEHAVIOR,
6623                                 APE_HOST_BEHAV_NO_PHYLOCK);
6624
6625                 event = APE_EVENT_STATUS_STATE_START;
6626                 break;
6627         case RESET_KIND_SHUTDOWN:
6628                 /* With the interface we are currently using,
6629                  * APE does not track driver state.  Wiping
6630                  * out the HOST SEGMENT SIGNATURE forces
6631                  * the APE to assume OS absent status.
6632                  */
6633                 tg3_ape_write32(tp, TG3_APE_HOST_SEG_SIG, 0x0);
6634
6635                 event = APE_EVENT_STATUS_STATE_UNLOAD;
6636                 break;
6637         case RESET_KIND_SUSPEND:
6638                 event = APE_EVENT_STATUS_STATE_SUSPEND;
6639                 break;
6640         default:
6641                 return;
6642         }
6643
6644         event |= APE_EVENT_STATUS_DRIVER_EVNT | APE_EVENT_STATUS_STATE_CHNGE;
6645
6646         tg3_ape_send_event(tp, event);
6647 }
6648
6649 /* tp->lock is held. */
6650 static void tg3_write_sig_pre_reset(struct tg3 *tp, int kind)
6651 {
6652         tg3_write_mem(tp, NIC_SRAM_FIRMWARE_MBOX,
6653                       NIC_SRAM_FIRMWARE_MBOX_MAGIC1);
6654
6655         if (tp->tg3_flags2 & TG3_FLG2_ASF_NEW_HANDSHAKE) {
6656                 switch (kind) {
6657                 case RESET_KIND_INIT:
6658                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6659                                       DRV_STATE_START);
6660                         break;
6661
6662                 case RESET_KIND_SHUTDOWN:
6663                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6664                                       DRV_STATE_UNLOAD);
6665                         break;
6666
6667                 case RESET_KIND_SUSPEND:
6668                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6669                                       DRV_STATE_SUSPEND);
6670                         break;
6671
6672                 default:
6673                         break;
6674                 }
6675         }
6676
6677         if (kind == RESET_KIND_INIT ||
6678             kind == RESET_KIND_SUSPEND)
6679                 tg3_ape_driver_state_change(tp, kind);
6680 }
6681
6682 /* tp->lock is held. */
6683 static void tg3_write_sig_post_reset(struct tg3 *tp, int kind)
6684 {
6685         if (tp->tg3_flags2 & TG3_FLG2_ASF_NEW_HANDSHAKE) {
6686                 switch (kind) {
6687                 case RESET_KIND_INIT:
6688                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6689                                       DRV_STATE_START_DONE);
6690                         break;
6691
6692                 case RESET_KIND_SHUTDOWN:
6693                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6694                                       DRV_STATE_UNLOAD_DONE);
6695                         break;
6696
6697                 default:
6698                         break;
6699                 }
6700         }
6701
6702         if (kind == RESET_KIND_SHUTDOWN)
6703                 tg3_ape_driver_state_change(tp, kind);
6704 }
6705
6706 /* tp->lock is held. */
6707 static void tg3_write_sig_legacy(struct tg3 *tp, int kind)
6708 {
6709         if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) {
6710                 switch (kind) {
6711                 case RESET_KIND_INIT:
6712                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6713                                       DRV_STATE_START);
6714                         break;
6715
6716                 case RESET_KIND_SHUTDOWN:
6717                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6718                                       DRV_STATE_UNLOAD);
6719                         break;
6720
6721                 case RESET_KIND_SUSPEND:
6722                         tg3_write_mem(tp, NIC_SRAM_FW_DRV_STATE_MBOX,
6723                                       DRV_STATE_SUSPEND);
6724                         break;
6725
6726                 default:
6727                         break;
6728                 }
6729         }
6730 }
6731
6732 static int tg3_poll_fw(struct tg3 *tp)
6733 {
6734         int i;
6735         u32 val;
6736
6737         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
6738                 /* Wait up to 20ms for init done. */
6739                 for (i = 0; i < 200; i++) {
6740                         if (tr32(VCPU_STATUS) & VCPU_STATUS_INIT_DONE)
6741                                 return 0;
6742                         udelay(100);
6743                 }
6744                 return -ENODEV;
6745         }
6746
6747         /* Wait for firmware initialization to complete. */
6748         for (i = 0; i < 100000; i++) {
6749                 tg3_read_mem(tp, NIC_SRAM_FIRMWARE_MBOX, &val);
6750                 if (val == ~NIC_SRAM_FIRMWARE_MBOX_MAGIC1)
6751                         break;
6752                 udelay(10);
6753         }
6754
6755         /* Chip might not be fitted with firmware.  Some Sun onboard
6756          * parts are configured like that.  So don't signal the timeout
6757          * of the above loop as an error, but do report the lack of
6758          * running firmware once.
6759          */
6760         if (i >= 100000 &&
6761             !(tp->tg3_flags2 & TG3_FLG2_NO_FWARE_REPORTED)) {
6762                 tp->tg3_flags2 |= TG3_FLG2_NO_FWARE_REPORTED;
6763
6764                 netdev_info(tp->dev, "No firmware running\n");
6765         }
6766
6767         if (tp->pci_chip_rev_id == CHIPREV_ID_57765_A0) {
6768                 /* The 57765 A0 needs a little more
6769                  * time to do some important work.
6770                  */
6771                 mdelay(10);
6772         }
6773
6774         return 0;
6775 }
6776
6777 /* Save PCI command register before chip reset */
6778 static void tg3_save_pci_state(struct tg3 *tp)
6779 {
6780         pci_read_config_word(tp->pdev, PCI_COMMAND, &tp->pci_cmd);
6781 }
6782
6783 /* Restore PCI state after chip reset */
6784 static void tg3_restore_pci_state(struct tg3 *tp)
6785 {
6786         u32 val;
6787
6788         /* Re-enable indirect register accesses. */
6789         pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
6790                                tp->misc_host_ctrl);
6791
6792         /* Set MAX PCI retry to zero. */
6793         val = (PCISTATE_ROM_ENABLE | PCISTATE_ROM_RETRY_ENABLE);
6794         if (tp->pci_chip_rev_id == CHIPREV_ID_5704_A0 &&
6795             (tp->tg3_flags & TG3_FLAG_PCIX_MODE))
6796                 val |= PCISTATE_RETRY_SAME_DMA;
6797         /* Allow reads and writes to the APE register and memory space. */
6798         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
6799                 val |= PCISTATE_ALLOW_APE_CTLSPC_WR |
6800                        PCISTATE_ALLOW_APE_SHMEM_WR |
6801                        PCISTATE_ALLOW_APE_PSPACE_WR;
6802         pci_write_config_dword(tp->pdev, TG3PCI_PCISTATE, val);
6803
6804         pci_write_config_word(tp->pdev, PCI_COMMAND, tp->pci_cmd);
6805
6806         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785) {
6807                 if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS)
6808                         pcie_set_readrq(tp->pdev, 4096);
6809                 else {
6810                         pci_write_config_byte(tp->pdev, PCI_CACHE_LINE_SIZE,
6811                                               tp->pci_cacheline_sz);
6812                         pci_write_config_byte(tp->pdev, PCI_LATENCY_TIMER,
6813                                               tp->pci_lat_timer);
6814                 }
6815         }
6816
6817         /* Make sure PCI-X relaxed ordering bit is clear. */
6818         if (tp->tg3_flags & TG3_FLAG_PCIX_MODE) {
6819                 u16 pcix_cmd;
6820
6821                 pci_read_config_word(tp->pdev, tp->pcix_cap + PCI_X_CMD,
6822                                      &pcix_cmd);
6823                 pcix_cmd &= ~PCI_X_CMD_ERO;
6824                 pci_write_config_word(tp->pdev, tp->pcix_cap + PCI_X_CMD,
6825                                       pcix_cmd);
6826         }
6827
6828         if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) {
6829
6830                 /* Chip reset on 5780 will reset MSI enable bit,
6831                  * so need to restore it.
6832                  */
6833                 if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
6834                         u16 ctrl;
6835
6836                         pci_read_config_word(tp->pdev,
6837                                              tp->msi_cap + PCI_MSI_FLAGS,
6838                                              &ctrl);
6839                         pci_write_config_word(tp->pdev,
6840                                               tp->msi_cap + PCI_MSI_FLAGS,
6841                                               ctrl | PCI_MSI_FLAGS_ENABLE);
6842                         val = tr32(MSGINT_MODE);
6843                         tw32(MSGINT_MODE, val | MSGINT_MODE_ENABLE);
6844                 }
6845         }
6846 }
6847
6848 static void tg3_stop_fw(struct tg3 *);
6849
6850 /* tp->lock is held. */
6851 static int tg3_chip_reset(struct tg3 *tp)
6852 {
6853         u32 val;
6854         void (*write_op)(struct tg3 *, u32, u32);
6855         int i, err;
6856
6857         tg3_nvram_lock(tp);
6858
6859         tg3_ape_lock(tp, TG3_APE_LOCK_GRC);
6860
6861         /* No matching tg3_nvram_unlock() after this because
6862          * chip reset below will undo the nvram lock.
6863          */
6864         tp->nvram_lock_cnt = 0;
6865
6866         /* GRC_MISC_CFG core clock reset will clear the memory
6867          * enable bit in PCI register 4 and the MSI enable bit
6868          * on some chips, so we save relevant registers here.
6869          */
6870         tg3_save_pci_state(tp);
6871
6872         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752 ||
6873             (tp->tg3_flags3 & TG3_FLG3_5755_PLUS))
6874                 tw32(GRC_FASTBOOT_PC, 0);
6875
6876         /*
6877          * We must avoid the readl() that normally takes place.
6878          * It locks machines, causes machine checks, and other
6879          * fun things.  So, temporarily disable the 5701
6880          * hardware workaround, while we do the reset.
6881          */
6882         write_op = tp->write32;
6883         if (write_op == tg3_write_flush_reg32)
6884                 tp->write32 = tg3_write32;
6885
6886         /* Prevent the irq handler from reading or writing PCI registers
6887          * during chip reset when the memory enable bit in the PCI command
6888          * register may be cleared.  The chip does not generate interrupt
6889          * at this time, but the irq handler may still be called due to irq
6890          * sharing or irqpoll.
6891          */
6892         tp->tg3_flags |= TG3_FLAG_CHIP_RESETTING;
6893         for (i = 0; i < tp->irq_cnt; i++) {
6894                 struct tg3_napi *tnapi = &tp->napi[i];
6895                 if (tnapi->hw_status) {
6896                         tnapi->hw_status->status = 0;
6897                         tnapi->hw_status->status_tag = 0;
6898                 }
6899                 tnapi->last_tag = 0;
6900                 tnapi->last_irq_tag = 0;
6901         }
6902         smp_mb();
6903
6904         for (i = 0; i < tp->irq_cnt; i++)
6905                 synchronize_irq(tp->napi[i].irq_vec);
6906
6907         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780) {
6908                 val = tr32(TG3_PCIE_LNKCTL) & ~TG3_PCIE_LNKCTL_L1_PLL_PD_EN;
6909                 tw32(TG3_PCIE_LNKCTL, val | TG3_PCIE_LNKCTL_L1_PLL_PD_DIS);
6910         }
6911
6912         /* do the reset */
6913         val = GRC_MISC_CFG_CORECLK_RESET;
6914
6915         if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
6916                 if (tr32(0x7e2c) == 0x60) {
6917                         tw32(0x7e2c, 0x20);
6918                 }
6919                 if (tp->pci_chip_rev_id != CHIPREV_ID_5750_A0) {
6920                         tw32(GRC_MISC_CFG, (1 << 29));
6921                         val |= (1 << 29);
6922                 }
6923         }
6924
6925         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
6926                 tw32(VCPU_STATUS, tr32(VCPU_STATUS) | VCPU_STATUS_DRV_RESET);
6927                 tw32(GRC_VCPU_EXT_CTRL,
6928                      tr32(GRC_VCPU_EXT_CTRL) & ~GRC_VCPU_EXT_CTRL_HALT_CPU);
6929         }
6930
6931         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
6932                 val |= GRC_MISC_CFG_KEEP_GPHY_POWER;
6933         tw32(GRC_MISC_CFG, val);
6934
6935         /* restore 5701 hardware bug workaround write method */
6936         tp->write32 = write_op;
6937
6938         /* Unfortunately, we have to delay before the PCI read back.
6939          * Some 575X chips even will not respond to a PCI cfg access
6940          * when the reset command is given to the chip.
6941          *
6942          * How do these hardware designers expect things to work
6943          * properly if the PCI write is posted for a long period
6944          * of time?  It is always necessary to have some method by
6945          * which a register read back can occur to push the write
6946          * out which does the reset.
6947          *
6948          * For most tg3 variants the trick below was working.
6949          * Ho hum...
6950          */
6951         udelay(120);
6952
6953         /* Flush PCI posted writes.  The normal MMIO registers
6954          * are inaccessible at this time so this is the only
6955          * way to make this reliably (actually, this is no longer
6956          * the case, see above).  I tried to use indirect
6957          * register read/write but this upset some 5701 variants.
6958          */
6959         pci_read_config_dword(tp->pdev, PCI_COMMAND, &val);
6960
6961         udelay(120);
6962
6963         if ((tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) && tp->pcie_cap) {
6964                 u16 val16;
6965
6966                 if (tp->pci_chip_rev_id == CHIPREV_ID_5750_A0) {
6967                         int i;
6968                         u32 cfg_val;
6969
6970                         /* Wait for link training to complete.  */
6971                         for (i = 0; i < 5000; i++)
6972                                 udelay(100);
6973
6974                         pci_read_config_dword(tp->pdev, 0xc4, &cfg_val);
6975                         pci_write_config_dword(tp->pdev, 0xc4,
6976                                                cfg_val | (1 << 15));
6977                 }
6978
6979                 /* Clear the "no snoop" and "relaxed ordering" bits. */
6980                 pci_read_config_word(tp->pdev,
6981                                      tp->pcie_cap + PCI_EXP_DEVCTL,
6982                                      &val16);
6983                 val16 &= ~(PCI_EXP_DEVCTL_RELAX_EN |
6984                            PCI_EXP_DEVCTL_NOSNOOP_EN);
6985                 /*
6986                  * Older PCIe devices only support the 128 byte
6987                  * MPS setting.  Enforce the restriction.
6988                  */
6989                 if (!(tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) ||
6990                     (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784))
6991                         val16 &= ~PCI_EXP_DEVCTL_PAYLOAD;
6992                 pci_write_config_word(tp->pdev,
6993                                       tp->pcie_cap + PCI_EXP_DEVCTL,
6994                                       val16);
6995
6996                 pcie_set_readrq(tp->pdev, 4096);
6997
6998                 /* Clear error status */
6999                 pci_write_config_word(tp->pdev,
7000                                       tp->pcie_cap + PCI_EXP_DEVSTA,
7001                                       PCI_EXP_DEVSTA_CED |
7002                                       PCI_EXP_DEVSTA_NFED |
7003                                       PCI_EXP_DEVSTA_FED |
7004                                       PCI_EXP_DEVSTA_URD);
7005         }
7006
7007         tg3_restore_pci_state(tp);
7008
7009         tp->tg3_flags &= ~TG3_FLAG_CHIP_RESETTING;
7010
7011         val = 0;
7012         if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)
7013                 val = tr32(MEMARB_MODE);
7014         tw32(MEMARB_MODE, val | MEMARB_MODE_ENABLE);
7015
7016         if (tp->pci_chip_rev_id == CHIPREV_ID_5750_A3) {
7017                 tg3_stop_fw(tp);
7018                 tw32(0x5000, 0x400);
7019         }
7020
7021         tw32(GRC_MODE, tp->grc_mode);
7022
7023         if (tp->pci_chip_rev_id == CHIPREV_ID_5705_A0) {
7024                 val = tr32(0xc4);
7025
7026                 tw32(0xc4, val | (1 << 15));
7027         }
7028
7029         if ((tp->nic_sram_data_cfg & NIC_SRAM_DATA_CFG_MINI_PCI) != 0 &&
7030             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
7031                 tp->pci_clock_ctrl |= CLOCK_CTRL_CLKRUN_OENABLE;
7032                 if (tp->pci_chip_rev_id == CHIPREV_ID_5705_A0)
7033                         tp->pci_clock_ctrl |= CLOCK_CTRL_FORCE_CLKRUN;
7034                 tw32(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl);
7035         }
7036
7037         if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) {
7038                 tp->mac_mode = MAC_MODE_PORT_MODE_TBI;
7039                 tw32_f(MAC_MODE, tp->mac_mode);
7040         } else if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES) {
7041                 tp->mac_mode = MAC_MODE_PORT_MODE_GMII;
7042                 tw32_f(MAC_MODE, tp->mac_mode);
7043         } else if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
7044                 tp->mac_mode &= (MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN);
7045                 if (tp->mac_mode & MAC_MODE_APE_TX_EN)
7046                         tp->mac_mode |= MAC_MODE_TDE_ENABLE;
7047                 tw32_f(MAC_MODE, tp->mac_mode);
7048         } else
7049                 tw32_f(MAC_MODE, 0);
7050         udelay(40);
7051
7052         tg3_ape_unlock(tp, TG3_APE_LOCK_GRC);
7053
7054         err = tg3_poll_fw(tp);
7055         if (err)
7056                 return err;
7057
7058         tg3_mdio_start(tp);
7059
7060         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780) {
7061                 u8 phy_addr;
7062
7063                 phy_addr = tp->phy_addr;
7064                 tp->phy_addr = TG3_PHY_PCIE_ADDR;
7065
7066                 tg3_writephy(tp, TG3_PCIEPHY_BLOCK_ADDR,
7067                              TG3_PCIEPHY_TXB_BLK << TG3_PCIEPHY_BLOCK_SHIFT);
7068                 val = TG3_PCIEPHY_TX0CTRL1_TXOCM | TG3_PCIEPHY_TX0CTRL1_RDCTL |
7069                       TG3_PCIEPHY_TX0CTRL1_TXCMV | TG3_PCIEPHY_TX0CTRL1_TKSEL |
7070                       TG3_PCIEPHY_TX0CTRL1_NB_EN;
7071                 tg3_writephy(tp, TG3_PCIEPHY_TX0CTRL1, val);
7072                 udelay(10);
7073
7074                 tg3_writephy(tp, TG3_PCIEPHY_BLOCK_ADDR,
7075                              TG3_PCIEPHY_XGXS_BLK1 << TG3_PCIEPHY_BLOCK_SHIFT);
7076                 val = TG3_PCIEPHY_PWRMGMT4_LOWPWR_EN |
7077                       TG3_PCIEPHY_PWRMGMT4_L1PLLPD_EN;
7078                 tg3_writephy(tp, TG3_PCIEPHY_PWRMGMT4, val);
7079                 udelay(10);
7080
7081                 tp->phy_addr = phy_addr;
7082         }
7083
7084         if ((tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) &&
7085             tp->pci_chip_rev_id != CHIPREV_ID_5750_A0 &&
7086             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785 &&
7087             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5717 &&
7088             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_57765) {
7089                 val = tr32(0x7c00);
7090
7091                 tw32(0x7c00, val | (1 << 25));
7092         }
7093
7094         /* Reprobe ASF enable state.  */
7095         tp->tg3_flags &= ~TG3_FLAG_ENABLE_ASF;
7096         tp->tg3_flags2 &= ~TG3_FLG2_ASF_NEW_HANDSHAKE;
7097         tg3_read_mem(tp, NIC_SRAM_DATA_SIG, &val);
7098         if (val == NIC_SRAM_DATA_SIG_MAGIC) {
7099                 u32 nic_cfg;
7100
7101                 tg3_read_mem(tp, NIC_SRAM_DATA_CFG, &nic_cfg);
7102                 if (nic_cfg & NIC_SRAM_DATA_CFG_ASF_ENABLE) {
7103                         tp->tg3_flags |= TG3_FLAG_ENABLE_ASF;
7104                         tp->last_event_jiffies = jiffies;
7105                         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS)
7106                                 tp->tg3_flags2 |= TG3_FLG2_ASF_NEW_HANDSHAKE;
7107                 }
7108         }
7109
7110         return 0;
7111 }
7112
7113 /* tp->lock is held. */
7114 static void tg3_stop_fw(struct tg3 *tp)
7115 {
7116         if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) &&
7117            !(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)) {
7118                 /* Wait for RX cpu to ACK the previous event. */
7119                 tg3_wait_for_event_ack(tp);
7120
7121                 tg3_write_mem(tp, NIC_SRAM_FW_CMD_MBOX, FWCMD_NICDRV_PAUSE_FW);
7122
7123                 tg3_generate_fw_event(tp);
7124
7125                 /* Wait for RX cpu to ACK this event. */
7126                 tg3_wait_for_event_ack(tp);
7127         }
7128 }
7129
7130 /* tp->lock is held. */
7131 static int tg3_halt(struct tg3 *tp, int kind, int silent)
7132 {
7133         int err;
7134
7135         tg3_stop_fw(tp);
7136
7137         tg3_write_sig_pre_reset(tp, kind);
7138
7139         tg3_abort_hw(tp, silent);
7140         err = tg3_chip_reset(tp);
7141
7142         __tg3_set_mac_addr(tp, 0);
7143
7144         tg3_write_sig_legacy(tp, kind);
7145         tg3_write_sig_post_reset(tp, kind);
7146
7147         if (err)
7148                 return err;
7149
7150         return 0;
7151 }
7152
7153 #define RX_CPU_SCRATCH_BASE     0x30000
7154 #define RX_CPU_SCRATCH_SIZE     0x04000
7155 #define TX_CPU_SCRATCH_BASE     0x34000
7156 #define TX_CPU_SCRATCH_SIZE     0x04000
7157
7158 /* tp->lock is held. */
7159 static int tg3_halt_cpu(struct tg3 *tp, u32 offset)
7160 {
7161         int i;
7162
7163         BUG_ON(offset == TX_CPU_BASE &&
7164             (tp->tg3_flags2 & TG3_FLG2_5705_PLUS));
7165
7166         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
7167                 u32 val = tr32(GRC_VCPU_EXT_CTRL);
7168
7169                 tw32(GRC_VCPU_EXT_CTRL, val | GRC_VCPU_EXT_CTRL_HALT_CPU);
7170                 return 0;
7171         }
7172         if (offset == RX_CPU_BASE) {
7173                 for (i = 0; i < 10000; i++) {
7174                         tw32(offset + CPU_STATE, 0xffffffff);
7175                         tw32(offset + CPU_MODE,  CPU_MODE_HALT);
7176                         if (tr32(offset + CPU_MODE) & CPU_MODE_HALT)
7177                                 break;
7178                 }
7179
7180                 tw32(offset + CPU_STATE, 0xffffffff);
7181                 tw32_f(offset + CPU_MODE,  CPU_MODE_HALT);
7182                 udelay(10);
7183         } else {
7184                 for (i = 0; i < 10000; i++) {
7185                         tw32(offset + CPU_STATE, 0xffffffff);
7186                         tw32(offset + CPU_MODE,  CPU_MODE_HALT);
7187                         if (tr32(offset + CPU_MODE) & CPU_MODE_HALT)
7188                                 break;
7189                 }
7190         }
7191
7192         if (i >= 10000) {
7193                 netdev_err(tp->dev, "%s timed out, %s CPU\n",
7194                            __func__, offset == RX_CPU_BASE ? "RX" : "TX");
7195                 return -ENODEV;
7196         }
7197
7198         /* Clear firmware's nvram arbitration. */
7199         if (tp->tg3_flags & TG3_FLAG_NVRAM)
7200                 tw32(NVRAM_SWARB, SWARB_REQ_CLR0);
7201         return 0;
7202 }
7203
7204 struct fw_info {
7205         unsigned int fw_base;
7206         unsigned int fw_len;
7207         const __be32 *fw_data;
7208 };
7209
7210 /* tp->lock is held. */
7211 static int tg3_load_firmware_cpu(struct tg3 *tp, u32 cpu_base, u32 cpu_scratch_base,
7212                                  int cpu_scratch_size, struct fw_info *info)
7213 {
7214         int err, lock_err, i;
7215         void (*write_op)(struct tg3 *, u32, u32);
7216
7217         if (cpu_base == TX_CPU_BASE &&
7218             (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
7219                 netdev_err(tp->dev,
7220                            "%s: Trying to load TX cpu firmware which is 5705\n",
7221                            __func__);
7222                 return -EINVAL;
7223         }
7224
7225         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
7226                 write_op = tg3_write_mem;
7227         else
7228                 write_op = tg3_write_indirect_reg32;
7229
7230         /* It is possible that bootcode is still loading at this point.
7231          * Get the nvram lock first before halting the cpu.
7232          */
7233         lock_err = tg3_nvram_lock(tp);
7234         err = tg3_halt_cpu(tp, cpu_base);
7235         if (!lock_err)
7236                 tg3_nvram_unlock(tp);
7237         if (err)
7238                 goto out;
7239
7240         for (i = 0; i < cpu_scratch_size; i += sizeof(u32))
7241                 write_op(tp, cpu_scratch_base + i, 0);
7242         tw32(cpu_base + CPU_STATE, 0xffffffff);
7243         tw32(cpu_base + CPU_MODE, tr32(cpu_base+CPU_MODE)|CPU_MODE_HALT);
7244         for (i = 0; i < (info->fw_len / sizeof(u32)); i++)
7245                 write_op(tp, (cpu_scratch_base +
7246                               (info->fw_base & 0xffff) +
7247                               (i * sizeof(u32))),
7248                               be32_to_cpu(info->fw_data[i]));
7249
7250         err = 0;
7251
7252 out:
7253         return err;
7254 }
7255
7256 /* tp->lock is held. */
7257 static int tg3_load_5701_a0_firmware_fix(struct tg3 *tp)
7258 {
7259         struct fw_info info;
7260         const __be32 *fw_data;
7261         int err, i;
7262
7263         fw_data = (void *)tp->fw->data;
7264
7265         /* Firmware blob starts with version numbers, followed by
7266            start address and length. We are setting complete length.
7267            length = end_address_of_bss - start_address_of_text.
7268            Remainder is the blob to be loaded contiguously
7269            from start address. */
7270
7271         info.fw_base = be32_to_cpu(fw_data[1]);
7272         info.fw_len = tp->fw->size - 12;
7273         info.fw_data = &fw_data[3];
7274
7275         err = tg3_load_firmware_cpu(tp, RX_CPU_BASE,
7276                                     RX_CPU_SCRATCH_BASE, RX_CPU_SCRATCH_SIZE,
7277                                     &info);
7278         if (err)
7279                 return err;
7280
7281         err = tg3_load_firmware_cpu(tp, TX_CPU_BASE,
7282                                     TX_CPU_SCRATCH_BASE, TX_CPU_SCRATCH_SIZE,
7283                                     &info);
7284         if (err)
7285                 return err;
7286
7287         /* Now startup only the RX cpu. */
7288         tw32(RX_CPU_BASE + CPU_STATE, 0xffffffff);
7289         tw32_f(RX_CPU_BASE + CPU_PC, info.fw_base);
7290
7291         for (i = 0; i < 5; i++) {
7292                 if (tr32(RX_CPU_BASE + CPU_PC) == info.fw_base)
7293                         break;
7294                 tw32(RX_CPU_BASE + CPU_STATE, 0xffffffff);
7295                 tw32(RX_CPU_BASE + CPU_MODE,  CPU_MODE_HALT);
7296                 tw32_f(RX_CPU_BASE + CPU_PC, info.fw_base);
7297                 udelay(1000);
7298         }
7299         if (i >= 5) {
7300                 netdev_err(tp->dev, "%s fails to set RX CPU PC, is %08x "
7301                            "should be %08x\n", __func__,
7302                            tr32(RX_CPU_BASE + CPU_PC), info.fw_base);
7303                 return -ENODEV;
7304         }
7305         tw32(RX_CPU_BASE + CPU_STATE, 0xffffffff);
7306         tw32_f(RX_CPU_BASE + CPU_MODE,  0x00000000);
7307
7308         return 0;
7309 }
7310
7311 /* 5705 needs a special version of the TSO firmware.  */
7312
7313 /* tp->lock is held. */
7314 static int tg3_load_tso_firmware(struct tg3 *tp)
7315 {
7316         struct fw_info info;
7317         const __be32 *fw_data;
7318         unsigned long cpu_base, cpu_scratch_base, cpu_scratch_size;
7319         int err, i;
7320
7321         if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
7322                 return 0;
7323
7324         fw_data = (void *)tp->fw->data;
7325
7326         /* Firmware blob starts with version numbers, followed by
7327            start address and length. We are setting complete length.
7328            length = end_address_of_bss - start_address_of_text.
7329            Remainder is the blob to be loaded contiguously
7330            from start address. */
7331
7332         info.fw_base = be32_to_cpu(fw_data[1]);
7333         cpu_scratch_size = tp->fw_len;
7334         info.fw_len = tp->fw->size - 12;
7335         info.fw_data = &fw_data[3];
7336
7337         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
7338                 cpu_base = RX_CPU_BASE;
7339                 cpu_scratch_base = NIC_SRAM_MBUF_POOL_BASE5705;
7340         } else {
7341                 cpu_base = TX_CPU_BASE;
7342                 cpu_scratch_base = TX_CPU_SCRATCH_BASE;
7343                 cpu_scratch_size = TX_CPU_SCRATCH_SIZE;
7344         }
7345
7346         err = tg3_load_firmware_cpu(tp, cpu_base,
7347                                     cpu_scratch_base, cpu_scratch_size,
7348                                     &info);
7349         if (err)
7350                 return err;
7351
7352         /* Now startup the cpu. */
7353         tw32(cpu_base + CPU_STATE, 0xffffffff);
7354         tw32_f(cpu_base + CPU_PC, info.fw_base);
7355
7356         for (i = 0; i < 5; i++) {
7357                 if (tr32(cpu_base + CPU_PC) == info.fw_base)
7358                         break;
7359                 tw32(cpu_base + CPU_STATE, 0xffffffff);
7360                 tw32(cpu_base + CPU_MODE,  CPU_MODE_HALT);
7361                 tw32_f(cpu_base + CPU_PC, info.fw_base);
7362                 udelay(1000);
7363         }
7364         if (i >= 5) {
7365                 netdev_err(tp->dev,
7366                            "%s fails to set CPU PC, is %08x should be %08x\n",
7367                            __func__, tr32(cpu_base + CPU_PC), info.fw_base);
7368                 return -ENODEV;
7369         }
7370         tw32(cpu_base + CPU_STATE, 0xffffffff);
7371         tw32_f(cpu_base + CPU_MODE,  0x00000000);
7372         return 0;
7373 }
7374
7375
7376 static int tg3_set_mac_addr(struct net_device *dev, void *p)
7377 {
7378         struct tg3 *tp = netdev_priv(dev);
7379         struct sockaddr *addr = p;
7380         int err = 0, skip_mac_1 = 0;
7381
7382         if (!is_valid_ether_addr(addr->sa_data))
7383                 return -EINVAL;
7384
7385         memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
7386
7387         if (!netif_running(dev))
7388                 return 0;
7389
7390         if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) {
7391                 u32 addr0_high, addr0_low, addr1_high, addr1_low;
7392
7393                 addr0_high = tr32(MAC_ADDR_0_HIGH);
7394                 addr0_low = tr32(MAC_ADDR_0_LOW);
7395                 addr1_high = tr32(MAC_ADDR_1_HIGH);
7396                 addr1_low = tr32(MAC_ADDR_1_LOW);
7397
7398                 /* Skip MAC addr 1 if ASF is using it. */
7399                 if ((addr0_high != addr1_high || addr0_low != addr1_low) &&
7400                     !(addr1_high == 0 && addr1_low == 0))
7401                         skip_mac_1 = 1;
7402         }
7403         spin_lock_bh(&tp->lock);
7404         __tg3_set_mac_addr(tp, skip_mac_1);
7405         spin_unlock_bh(&tp->lock);
7406
7407         return err;
7408 }
7409
7410 /* tp->lock is held. */
7411 static void tg3_set_bdinfo(struct tg3 *tp, u32 bdinfo_addr,
7412                            dma_addr_t mapping, u32 maxlen_flags,
7413                            u32 nic_addr)
7414 {
7415         tg3_write_mem(tp,
7416                       (bdinfo_addr + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_HIGH),
7417                       ((u64) mapping >> 32));
7418         tg3_write_mem(tp,
7419                       (bdinfo_addr + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_LOW),
7420                       ((u64) mapping & 0xffffffff));
7421         tg3_write_mem(tp,
7422                       (bdinfo_addr + TG3_BDINFO_MAXLEN_FLAGS),
7423                        maxlen_flags);
7424
7425         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
7426                 tg3_write_mem(tp,
7427                               (bdinfo_addr + TG3_BDINFO_NIC_ADDR),
7428                               nic_addr);
7429 }
7430
7431 static void __tg3_set_rx_mode(struct net_device *);
7432 static void __tg3_set_coalesce(struct tg3 *tp, struct ethtool_coalesce *ec)
7433 {
7434         int i;
7435
7436         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)) {
7437                 tw32(HOSTCC_TXCOL_TICKS, ec->tx_coalesce_usecs);
7438                 tw32(HOSTCC_TXMAX_FRAMES, ec->tx_max_coalesced_frames);
7439                 tw32(HOSTCC_TXCOAL_MAXF_INT, ec->tx_max_coalesced_frames_irq);
7440         } else {
7441                 tw32(HOSTCC_TXCOL_TICKS, 0);
7442                 tw32(HOSTCC_TXMAX_FRAMES, 0);
7443                 tw32(HOSTCC_TXCOAL_MAXF_INT, 0);
7444         }
7445
7446         if (!(tp->tg3_flags2 & TG3_FLG2_USING_MSIX)) {
7447                 tw32(HOSTCC_RXCOL_TICKS, ec->rx_coalesce_usecs);
7448                 tw32(HOSTCC_RXMAX_FRAMES, ec->rx_max_coalesced_frames);
7449                 tw32(HOSTCC_RXCOAL_MAXF_INT, ec->rx_max_coalesced_frames_irq);
7450         } else {
7451                 tw32(HOSTCC_RXCOL_TICKS, 0);
7452                 tw32(HOSTCC_RXMAX_FRAMES, 0);
7453                 tw32(HOSTCC_RXCOAL_MAXF_INT, 0);
7454         }
7455
7456         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
7457                 u32 val = ec->stats_block_coalesce_usecs;
7458
7459                 tw32(HOSTCC_RXCOAL_TICK_INT, ec->rx_coalesce_usecs_irq);
7460                 tw32(HOSTCC_TXCOAL_TICK_INT, ec->tx_coalesce_usecs_irq);
7461
7462                 if (!netif_carrier_ok(tp->dev))
7463                         val = 0;
7464
7465                 tw32(HOSTCC_STAT_COAL_TICKS, val);
7466         }
7467
7468         for (i = 0; i < tp->irq_cnt - 1; i++) {
7469                 u32 reg;
7470
7471                 reg = HOSTCC_RXCOL_TICKS_VEC1 + i * 0x18;
7472                 tw32(reg, ec->rx_coalesce_usecs);
7473                 reg = HOSTCC_RXMAX_FRAMES_VEC1 + i * 0x18;
7474                 tw32(reg, ec->rx_max_coalesced_frames);
7475                 reg = HOSTCC_RXCOAL_MAXF_INT_VEC1 + i * 0x18;
7476                 tw32(reg, ec->rx_max_coalesced_frames_irq);
7477
7478                 if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS) {
7479                         reg = HOSTCC_TXCOL_TICKS_VEC1 + i * 0x18;
7480                         tw32(reg, ec->tx_coalesce_usecs);
7481                         reg = HOSTCC_TXMAX_FRAMES_VEC1 + i * 0x18;
7482                         tw32(reg, ec->tx_max_coalesced_frames);
7483                         reg = HOSTCC_TXCOAL_MAXF_INT_VEC1 + i * 0x18;
7484                         tw32(reg, ec->tx_max_coalesced_frames_irq);
7485                 }
7486         }
7487
7488         for (; i < tp->irq_max - 1; i++) {
7489                 tw32(HOSTCC_RXCOL_TICKS_VEC1 + i * 0x18, 0);
7490                 tw32(HOSTCC_RXMAX_FRAMES_VEC1 + i * 0x18, 0);
7491                 tw32(HOSTCC_RXCOAL_MAXF_INT_VEC1 + i * 0x18, 0);
7492
7493                 if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS) {
7494                         tw32(HOSTCC_TXCOL_TICKS_VEC1 + i * 0x18, 0);
7495                         tw32(HOSTCC_TXMAX_FRAMES_VEC1 + i * 0x18, 0);
7496                         tw32(HOSTCC_TXCOAL_MAXF_INT_VEC1 + i * 0x18, 0);
7497                 }
7498         }
7499 }
7500
7501 /* tp->lock is held. */
7502 static void tg3_rings_reset(struct tg3 *tp)
7503 {
7504         int i;
7505         u32 stblk, txrcb, rxrcb, limit;
7506         struct tg3_napi *tnapi = &tp->napi[0];
7507
7508         /* Disable all transmit rings but the first. */
7509         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
7510                 limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE * 16;
7511         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
7512                 limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE * 2;
7513         else
7514                 limit = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE;
7515
7516         for (txrcb = NIC_SRAM_SEND_RCB + TG3_BDINFO_SIZE;
7517              txrcb < limit; txrcb += TG3_BDINFO_SIZE)
7518                 tg3_write_mem(tp, txrcb + TG3_BDINFO_MAXLEN_FLAGS,
7519                               BDINFO_FLAGS_DISABLED);
7520
7521
7522         /* Disable all receive return rings but the first. */
7523         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717)
7524                 limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE * 17;
7525         else if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
7526                 limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE * 16;
7527         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 ||
7528                  GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
7529                 limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE * 4;
7530         else
7531                 limit = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE;
7532
7533         for (rxrcb = NIC_SRAM_RCV_RET_RCB + TG3_BDINFO_SIZE;
7534              rxrcb < limit; rxrcb += TG3_BDINFO_SIZE)
7535                 tg3_write_mem(tp, rxrcb + TG3_BDINFO_MAXLEN_FLAGS,
7536                               BDINFO_FLAGS_DISABLED);
7537
7538         /* Disable interrupts */
7539         tw32_mailbox_f(tp->napi[0].int_mbox, 1);
7540
7541         /* Zero mailbox registers. */
7542         if (tp->tg3_flags & TG3_FLAG_SUPPORT_MSIX) {
7543                 for (i = 1; i < TG3_IRQ_MAX_VECS; i++) {
7544                         tp->napi[i].tx_prod = 0;
7545                         tp->napi[i].tx_cons = 0;
7546                         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
7547                                 tw32_mailbox(tp->napi[i].prodmbox, 0);
7548                         tw32_rx_mbox(tp->napi[i].consmbox, 0);
7549                         tw32_mailbox_f(tp->napi[i].int_mbox, 1);
7550                 }
7551                 if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS))
7552                         tw32_mailbox(tp->napi[0].prodmbox, 0);
7553         } else {
7554                 tp->napi[0].tx_prod = 0;
7555                 tp->napi[0].tx_cons = 0;
7556                 tw32_mailbox(tp->napi[0].prodmbox, 0);
7557                 tw32_rx_mbox(tp->napi[0].consmbox, 0);
7558         }
7559
7560         /* Make sure the NIC-based send BD rings are disabled. */
7561         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
7562                 u32 mbox = MAILBOX_SNDNIC_PROD_IDX_0 + TG3_64BIT_REG_LOW;
7563                 for (i = 0; i < 16; i++)
7564                         tw32_tx_mbox(mbox + i * 8, 0);
7565         }
7566
7567         txrcb = NIC_SRAM_SEND_RCB;
7568         rxrcb = NIC_SRAM_RCV_RET_RCB;
7569
7570         /* Clear status block in ram. */
7571         memset(tnapi->hw_status, 0, TG3_HW_STATUS_SIZE);
7572
7573         /* Set status block DMA address */
7574         tw32(HOSTCC_STATUS_BLK_HOST_ADDR + TG3_64BIT_REG_HIGH,
7575              ((u64) tnapi->status_mapping >> 32));
7576         tw32(HOSTCC_STATUS_BLK_HOST_ADDR + TG3_64BIT_REG_LOW,
7577              ((u64) tnapi->status_mapping & 0xffffffff));
7578
7579         if (tnapi->tx_ring) {
7580                 tg3_set_bdinfo(tp, txrcb, tnapi->tx_desc_mapping,
7581                                (TG3_TX_RING_SIZE <<
7582                                 BDINFO_FLAGS_MAXLEN_SHIFT),
7583                                NIC_SRAM_TX_BUFFER_DESC);
7584                 txrcb += TG3_BDINFO_SIZE;
7585         }
7586
7587         if (tnapi->rx_rcb) {
7588                 tg3_set_bdinfo(tp, rxrcb, tnapi->rx_rcb_mapping,
7589                                (TG3_RX_RCB_RING_SIZE(tp) <<
7590                                 BDINFO_FLAGS_MAXLEN_SHIFT), 0);
7591                 rxrcb += TG3_BDINFO_SIZE;
7592         }
7593
7594         stblk = HOSTCC_STATBLCK_RING1;
7595
7596         for (i = 1, tnapi++; i < tp->irq_cnt; i++, tnapi++) {
7597                 u64 mapping = (u64)tnapi->status_mapping;
7598                 tw32(stblk + TG3_64BIT_REG_HIGH, mapping >> 32);
7599                 tw32(stblk + TG3_64BIT_REG_LOW, mapping & 0xffffffff);
7600
7601                 /* Clear status block in ram. */
7602                 memset(tnapi->hw_status, 0, TG3_HW_STATUS_SIZE);
7603
7604                 if (tnapi->tx_ring) {
7605                         tg3_set_bdinfo(tp, txrcb, tnapi->tx_desc_mapping,
7606                                        (TG3_TX_RING_SIZE <<
7607                                         BDINFO_FLAGS_MAXLEN_SHIFT),
7608                                        NIC_SRAM_TX_BUFFER_DESC);
7609                         txrcb += TG3_BDINFO_SIZE;
7610                 }
7611
7612                 tg3_set_bdinfo(tp, rxrcb, tnapi->rx_rcb_mapping,
7613                                (TG3_RX_RCB_RING_SIZE(tp) <<
7614                                 BDINFO_FLAGS_MAXLEN_SHIFT), 0);
7615
7616                 stblk += 8;
7617                 rxrcb += TG3_BDINFO_SIZE;
7618         }
7619 }
7620
7621 /* tp->lock is held. */
7622 static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
7623 {
7624         u32 val, rdmac_mode;
7625         int i, err, limit;
7626         struct tg3_rx_prodring_set *tpr = &tp->prodring[0];
7627
7628         tg3_disable_ints(tp);
7629
7630         tg3_stop_fw(tp);
7631
7632         tg3_write_sig_pre_reset(tp, RESET_KIND_INIT);
7633
7634         if (tp->tg3_flags & TG3_FLAG_INIT_COMPLETE)
7635                 tg3_abort_hw(tp, 1);
7636
7637         if (reset_phy)
7638                 tg3_phy_reset(tp);
7639
7640         err = tg3_chip_reset(tp);
7641         if (err)
7642                 return err;
7643
7644         tg3_write_sig_legacy(tp, RESET_KIND_INIT);
7645
7646         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX) {
7647                 val = tr32(TG3_CPMU_CTRL);
7648                 val &= ~(CPMU_CTRL_LINK_AWARE_MODE | CPMU_CTRL_LINK_IDLE_MODE);
7649                 tw32(TG3_CPMU_CTRL, val);
7650
7651                 val = tr32(TG3_CPMU_LSPD_10MB_CLK);
7652                 val &= ~CPMU_LSPD_10MB_MACCLK_MASK;
7653                 val |= CPMU_LSPD_10MB_MACCLK_6_25;
7654                 tw32(TG3_CPMU_LSPD_10MB_CLK, val);
7655
7656                 val = tr32(TG3_CPMU_LNK_AWARE_PWRMD);
7657                 val &= ~CPMU_LNK_AWARE_MACCLK_MASK;
7658                 val |= CPMU_LNK_AWARE_MACCLK_6_25;
7659                 tw32(TG3_CPMU_LNK_AWARE_PWRMD, val);
7660
7661                 val = tr32(TG3_CPMU_HST_ACC);
7662                 val &= ~CPMU_HST_ACC_MACCLK_MASK;
7663                 val |= CPMU_HST_ACC_MACCLK_6_25;
7664                 tw32(TG3_CPMU_HST_ACC, val);
7665         }
7666
7667         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780) {
7668                 val = tr32(PCIE_PWR_MGMT_THRESH) & ~PCIE_PWR_MGMT_L1_THRESH_MSK;
7669                 val |= PCIE_PWR_MGMT_EXT_ASPM_TMR_EN |
7670                        PCIE_PWR_MGMT_L1_THRESH_4MS;
7671                 tw32(PCIE_PWR_MGMT_THRESH, val);
7672
7673                 val = tr32(TG3_PCIE_EIDLE_DELAY) & ~TG3_PCIE_EIDLE_DELAY_MASK;
7674                 tw32(TG3_PCIE_EIDLE_DELAY, val | TG3_PCIE_EIDLE_DELAY_13_CLKS);
7675
7676                 tw32(TG3_CORR_ERR_STAT, TG3_CORR_ERR_STAT_CLEAR);
7677
7678                 val = tr32(TG3_PCIE_LNKCTL) & ~TG3_PCIE_LNKCTL_L1_PLL_PD_EN;
7679                 tw32(TG3_PCIE_LNKCTL, val | TG3_PCIE_LNKCTL_L1_PLL_PD_DIS);
7680         }
7681
7682         if (tp->tg3_flags3 & TG3_FLG3_L1PLLPD_EN) {
7683                 u32 grc_mode = tr32(GRC_MODE);
7684
7685                 /* Access the lower 1K of PL PCIE block registers. */
7686                 val = grc_mode & ~GRC_MODE_PCIE_PORT_MASK;
7687                 tw32(GRC_MODE, val | GRC_MODE_PCIE_PL_SEL);
7688
7689                 val = tr32(TG3_PCIE_TLDLPL_PORT + TG3_PCIE_PL_LO_PHYCTL1);
7690                 tw32(TG3_PCIE_TLDLPL_PORT + TG3_PCIE_PL_LO_PHYCTL1,
7691                      val | TG3_PCIE_PL_LO_PHYCTL1_L1PLLPD_EN);
7692
7693                 tw32(GRC_MODE, grc_mode);
7694         }
7695
7696         if (tp->pci_chip_rev_id == CHIPREV_ID_57765_A0) {
7697                 u32 grc_mode = tr32(GRC_MODE);
7698
7699                 /* Access the lower 1K of PL PCIE block registers. */
7700                 val = grc_mode & ~GRC_MODE_PCIE_PORT_MASK;
7701                 tw32(GRC_MODE, val | GRC_MODE_PCIE_PL_SEL);
7702
7703                 val = tr32(TG3_PCIE_TLDLPL_PORT + TG3_PCIE_PL_LO_PHYCTL5);
7704                 tw32(TG3_PCIE_TLDLPL_PORT + TG3_PCIE_PL_LO_PHYCTL5,
7705                      val | TG3_PCIE_PL_LO_PHYCTL5_DIS_L2CLKREQ);
7706
7707                 tw32(GRC_MODE, grc_mode);
7708
7709                 val = tr32(TG3_CPMU_LSPD_10MB_CLK);
7710                 val &= ~CPMU_LSPD_10MB_MACCLK_MASK;
7711                 val |= CPMU_LSPD_10MB_MACCLK_6_25;
7712                 tw32(TG3_CPMU_LSPD_10MB_CLK, val);
7713         }
7714
7715         /* This works around an issue with Athlon chipsets on
7716          * B3 tigon3 silicon.  This bit has no effect on any
7717          * other revision.  But do not set this on PCI Express
7718          * chips and don't even touch the clocks if the CPMU is present.
7719          */
7720         if (!(tp->tg3_flags & TG3_FLAG_CPMU_PRESENT)) {
7721                 if (!(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS))
7722                         tp->pci_clock_ctrl |= CLOCK_CTRL_DELAY_PCI_GRANT;
7723                 tw32_f(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl);
7724         }
7725
7726         if (tp->pci_chip_rev_id == CHIPREV_ID_5704_A0 &&
7727             (tp->tg3_flags & TG3_FLAG_PCIX_MODE)) {
7728                 val = tr32(TG3PCI_PCISTATE);
7729                 val |= PCISTATE_RETRY_SAME_DMA;
7730                 tw32(TG3PCI_PCISTATE, val);
7731         }
7732
7733         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
7734                 /* Allow reads and writes to the
7735                  * APE register and memory space.
7736                  */
7737                 val = tr32(TG3PCI_PCISTATE);
7738                 val |= PCISTATE_ALLOW_APE_CTLSPC_WR |
7739                        PCISTATE_ALLOW_APE_SHMEM_WR |
7740                        PCISTATE_ALLOW_APE_PSPACE_WR;
7741                 tw32(TG3PCI_PCISTATE, val);
7742         }
7743
7744         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5704_BX) {
7745                 /* Enable some hw fixes.  */
7746                 val = tr32(TG3PCI_MSI_DATA);
7747                 val |= (1 << 26) | (1 << 28) | (1 << 29);
7748                 tw32(TG3PCI_MSI_DATA, val);
7749         }
7750
7751         /* Descriptor ring init may make accesses to the
7752          * NIC SRAM area to setup the TX descriptors, so we
7753          * can only do this after the hardware has been
7754          * successfully reset.
7755          */
7756         err = tg3_init_rings(tp);
7757         if (err)
7758                 return err;
7759
7760         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
7761             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765) {
7762                 val = tr32(TG3PCI_DMA_RW_CTRL) &
7763                       ~DMA_RWCTRL_DIS_CACHE_ALIGNMENT;
7764                 if (tp->pci_chip_rev_id == CHIPREV_ID_57765_A0)
7765                         val &= ~DMA_RWCTRL_CRDRDR_RDMA_MRRS_MSK;
7766                 tw32(TG3PCI_DMA_RW_CTRL, val | tp->dma_rwctrl);
7767         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5784 &&
7768                    GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5761) {
7769                 /* This value is determined during the probe time DMA
7770                  * engine test, tg3_test_dma.
7771                  */
7772                 tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
7773         }
7774
7775         tp->grc_mode &= ~(GRC_MODE_HOST_SENDBDS |
7776                           GRC_MODE_4X_NIC_SEND_RINGS |
7777                           GRC_MODE_NO_TX_PHDR_CSUM |
7778                           GRC_MODE_NO_RX_PHDR_CSUM);
7779         tp->grc_mode |= GRC_MODE_HOST_SENDBDS;
7780
7781         /* Pseudo-header checksum is done by hardware logic and not
7782          * the offload processers, so make the chip do the pseudo-
7783          * header checksums on receive.  For transmit it is more
7784          * convenient to do the pseudo-header checksum in software
7785          * as Linux does that on transmit for us in all cases.
7786          */
7787         tp->grc_mode |= GRC_MODE_NO_TX_PHDR_CSUM;
7788
7789         tw32(GRC_MODE,
7790              tp->grc_mode |
7791              (GRC_MODE_IRQ_ON_MAC_ATTN | GRC_MODE_HOST_STACKUP));
7792
7793         /* Setup the timer prescalar register.  Clock is always 66Mhz. */
7794         val = tr32(GRC_MISC_CFG);
7795         val &= ~0xff;
7796         val |= (65 << GRC_MISC_CFG_PRESCALAR_SHIFT);
7797         tw32(GRC_MISC_CFG, val);
7798
7799         /* Initialize MBUF/DESC pool. */
7800         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) {
7801                 /* Do nothing.  */
7802         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5705) {
7803                 tw32(BUFMGR_MB_POOL_ADDR, NIC_SRAM_MBUF_POOL_BASE);
7804                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704)
7805                         tw32(BUFMGR_MB_POOL_SIZE, NIC_SRAM_MBUF_POOL_SIZE64);
7806                 else
7807                         tw32(BUFMGR_MB_POOL_SIZE, NIC_SRAM_MBUF_POOL_SIZE96);
7808                 tw32(BUFMGR_DMA_DESC_POOL_ADDR, NIC_SRAM_DMA_DESC_POOL_BASE);
7809                 tw32(BUFMGR_DMA_DESC_POOL_SIZE, NIC_SRAM_DMA_DESC_POOL_SIZE);
7810         } else if (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) {
7811                 int fw_len;
7812
7813                 fw_len = tp->fw_len;
7814                 fw_len = (fw_len + (0x80 - 1)) & ~(0x80 - 1);
7815                 tw32(BUFMGR_MB_POOL_ADDR,
7816                      NIC_SRAM_MBUF_POOL_BASE5705 + fw_len);
7817                 tw32(BUFMGR_MB_POOL_SIZE,
7818                      NIC_SRAM_MBUF_POOL_SIZE5705 - fw_len - 0xa00);
7819         }
7820
7821         if (tp->dev->mtu <= ETH_DATA_LEN) {
7822                 tw32(BUFMGR_MB_RDMA_LOW_WATER,
7823                      tp->bufmgr_config.mbuf_read_dma_low_water);
7824                 tw32(BUFMGR_MB_MACRX_LOW_WATER,
7825                      tp->bufmgr_config.mbuf_mac_rx_low_water);
7826                 tw32(BUFMGR_MB_HIGH_WATER,
7827                      tp->bufmgr_config.mbuf_high_water);
7828         } else {
7829                 tw32(BUFMGR_MB_RDMA_LOW_WATER,
7830                      tp->bufmgr_config.mbuf_read_dma_low_water_jumbo);
7831                 tw32(BUFMGR_MB_MACRX_LOW_WATER,
7832                      tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo);
7833                 tw32(BUFMGR_MB_HIGH_WATER,
7834                      tp->bufmgr_config.mbuf_high_water_jumbo);
7835         }
7836         tw32(BUFMGR_DMA_LOW_WATER,
7837              tp->bufmgr_config.dma_low_water);
7838         tw32(BUFMGR_DMA_HIGH_WATER,
7839              tp->bufmgr_config.dma_high_water);
7840
7841         tw32(BUFMGR_MODE, BUFMGR_MODE_ENABLE | BUFMGR_MODE_ATTN_ENABLE);
7842         for (i = 0; i < 2000; i++) {
7843                 if (tr32(BUFMGR_MODE) & BUFMGR_MODE_ENABLE)
7844                         break;
7845                 udelay(10);
7846         }
7847         if (i >= 2000) {
7848                 netdev_err(tp->dev, "%s cannot enable BUFMGR\n", __func__);
7849                 return -ENODEV;
7850         }
7851
7852         /* Setup replenish threshold. */
7853         val = tp->rx_pending / 8;
7854         if (val == 0)
7855                 val = 1;
7856         else if (val > tp->rx_std_max_post)
7857                 val = tp->rx_std_max_post;
7858         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
7859                 if (tp->pci_chip_rev_id == CHIPREV_ID_5906_A1)
7860                         tw32(ISO_PKT_TX, (tr32(ISO_PKT_TX) & ~0x3) | 0x2);
7861
7862                 if (val > (TG3_RX_INTERNAL_RING_SZ_5906 / 2))
7863                         val = TG3_RX_INTERNAL_RING_SZ_5906 / 2;
7864         }
7865
7866         tw32(RCVBDI_STD_THRESH, val);
7867
7868         /* Initialize TG3_BDINFO's at:
7869          *  RCVDBDI_STD_BD:     standard eth size rx ring
7870          *  RCVDBDI_JUMBO_BD:   jumbo frame rx ring
7871          *  RCVDBDI_MINI_BD:    small frame rx ring (??? does not work)
7872          *
7873          * like so:
7874          *  TG3_BDINFO_HOST_ADDR:       high/low parts of DMA address of ring
7875          *  TG3_BDINFO_MAXLEN_FLAGS:    (rx max buffer size << 16) |
7876          *                              ring attribute flags
7877          *  TG3_BDINFO_NIC_ADDR:        location of descriptors in nic SRAM
7878          *
7879          * Standard receive ring @ NIC_SRAM_RX_BUFFER_DESC, 512 entries.
7880          * Jumbo receive ring @ NIC_SRAM_RX_JUMBO_BUFFER_DESC, 256 entries.
7881          *
7882          * The size of each ring is fixed in the firmware, but the location is
7883          * configurable.
7884          */
7885         tw32(RCVDBDI_STD_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_HIGH,
7886              ((u64) tpr->rx_std_mapping >> 32));
7887         tw32(RCVDBDI_STD_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_LOW,
7888              ((u64) tpr->rx_std_mapping & 0xffffffff));
7889         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5717)
7890                 tw32(RCVDBDI_STD_BD + TG3_BDINFO_NIC_ADDR,
7891                      NIC_SRAM_RX_BUFFER_DESC);
7892
7893         /* Disable the mini ring */
7894         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
7895                 tw32(RCVDBDI_MINI_BD + TG3_BDINFO_MAXLEN_FLAGS,
7896                      BDINFO_FLAGS_DISABLED);
7897
7898         /* Program the jumbo buffer descriptor ring control
7899          * blocks on those devices that have them.
7900          */
7901         if ((tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) &&
7902             !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
7903                 /* Setup replenish threshold. */
7904                 tw32(RCVBDI_JUMBO_THRESH, tp->rx_jumbo_pending / 8);
7905
7906                 if (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE) {
7907                         tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_HIGH,
7908                              ((u64) tpr->rx_jmb_mapping >> 32));
7909                         tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_HOST_ADDR + TG3_64BIT_REG_LOW,
7910                              ((u64) tpr->rx_jmb_mapping & 0xffffffff));
7911                         tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_MAXLEN_FLAGS,
7912                              (RX_JUMBO_MAX_SIZE << BDINFO_FLAGS_MAXLEN_SHIFT) |
7913                              BDINFO_FLAGS_USE_EXT_RECV);
7914                         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5717)
7915                                 tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_NIC_ADDR,
7916                                      NIC_SRAM_RX_JUMBO_BUFFER_DESC);
7917                 } else {
7918                         tw32(RCVDBDI_JUMBO_BD + TG3_BDINFO_MAXLEN_FLAGS,
7919                              BDINFO_FLAGS_DISABLED);
7920                 }
7921
7922                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
7923                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
7924                         val = (RX_STD_MAX_SIZE_5705 << BDINFO_FLAGS_MAXLEN_SHIFT) |
7925                               (TG3_RX_STD_DMA_SZ << 2);
7926                 else
7927                         val = TG3_RX_STD_DMA_SZ << BDINFO_FLAGS_MAXLEN_SHIFT;
7928         } else
7929                 val = RX_STD_MAX_SIZE_5705 << BDINFO_FLAGS_MAXLEN_SHIFT;
7930
7931         tw32(RCVDBDI_STD_BD + TG3_BDINFO_MAXLEN_FLAGS, val);
7932
7933         tpr->rx_std_prod_idx = tp->rx_pending;
7934         tw32_rx_mbox(TG3_RX_STD_PROD_IDX_REG, tpr->rx_std_prod_idx);
7935
7936         tpr->rx_jmb_prod_idx = (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE) ?
7937                           tp->rx_jumbo_pending : 0;
7938         tw32_rx_mbox(TG3_RX_JMB_PROD_IDX_REG, tpr->rx_jmb_prod_idx);
7939
7940         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
7941             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765) {
7942                 tw32(STD_REPLENISH_LWM, 32);
7943                 tw32(JMB_REPLENISH_LWM, 16);
7944         }
7945
7946         tg3_rings_reset(tp);
7947
7948         /* Initialize MAC address and backoff seed. */
7949         __tg3_set_mac_addr(tp, 0);
7950
7951         /* MTU + ethernet header + FCS + optional VLAN tag */
7952         tw32(MAC_RX_MTU_SIZE,
7953              tp->dev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN);
7954
7955         /* The slot time is changed by tg3_setup_phy if we
7956          * run at gigabit with half duplex.
7957          */
7958         tw32(MAC_TX_LENGTHS,
7959              (2 << TX_LENGTHS_IPG_CRS_SHIFT) |
7960              (6 << TX_LENGTHS_IPG_SHIFT) |
7961              (32 << TX_LENGTHS_SLOT_TIME_SHIFT));
7962
7963         /* Receive rules. */
7964         tw32(MAC_RCV_RULE_CFG, RCV_RULE_CFG_DEFAULT_CLASS);
7965         tw32(RCVLPC_CONFIG, 0x0181);
7966
7967         /* Calculate RDMAC_MODE setting early, we need it to determine
7968          * the RCVLPC_STATE_ENABLE mask.
7969          */
7970         rdmac_mode = (RDMAC_MODE_ENABLE | RDMAC_MODE_TGTABORT_ENAB |
7971                       RDMAC_MODE_MSTABORT_ENAB | RDMAC_MODE_PARITYERR_ENAB |
7972                       RDMAC_MODE_ADDROFLOW_ENAB | RDMAC_MODE_FIFOOFLOW_ENAB |
7973                       RDMAC_MODE_FIFOURUN_ENAB | RDMAC_MODE_FIFOOREAD_ENAB |
7974                       RDMAC_MODE_LNGREAD_ENAB);
7975
7976         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717)
7977                 rdmac_mode |= RDMAC_MODE_MULT_DMA_RD_DIS;
7978
7979         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
7980             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
7981             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
7982                 rdmac_mode |= RDMAC_MODE_BD_SBD_CRPT_ENAB |
7983                               RDMAC_MODE_MBUF_RBD_CRPT_ENAB |
7984                               RDMAC_MODE_MBUF_SBD_CRPT_ENAB;
7985
7986         /* If statement applies to 5705 and 5750 PCI devices only */
7987         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 &&
7988              tp->pci_chip_rev_id != CHIPREV_ID_5705_A0) ||
7989             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750)) {
7990                 if (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE &&
7991                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
7992                         rdmac_mode |= RDMAC_MODE_FIFO_SIZE_128;
7993                 } else if (!(tr32(TG3PCI_PCISTATE) & PCISTATE_BUS_SPEED_HIGH) &&
7994                            !(tp->tg3_flags2 & TG3_FLG2_IS_5788)) {
7995                         rdmac_mode |= RDMAC_MODE_FIFO_LONG_BURST;
7996                 }
7997         }
7998
7999         if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS)
8000                 rdmac_mode |= RDMAC_MODE_FIFO_LONG_BURST;
8001
8002         if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
8003                 rdmac_mode |= RDMAC_MODE_IPV4_LSO_EN;
8004
8005         if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_3) ||
8006             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
8007             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
8008                 rdmac_mode |= RDMAC_MODE_IPV6_LSO_EN;
8009
8010         /* Receive/send statistics. */
8011         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) {
8012                 val = tr32(RCVLPC_STATS_ENABLE);
8013                 val &= ~RCVLPC_STATSENAB_DACK_FIX;
8014                 tw32(RCVLPC_STATS_ENABLE, val);
8015         } else if ((rdmac_mode & RDMAC_MODE_FIFO_SIZE_128) &&
8016                    (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE)) {
8017                 val = tr32(RCVLPC_STATS_ENABLE);
8018                 val &= ~RCVLPC_STATSENAB_LNGBRST_RFIX;
8019                 tw32(RCVLPC_STATS_ENABLE, val);
8020         } else {
8021                 tw32(RCVLPC_STATS_ENABLE, 0xffffff);
8022         }
8023         tw32(RCVLPC_STATSCTRL, RCVLPC_STATSCTRL_ENABLE);
8024         tw32(SNDDATAI_STATSENAB, 0xffffff);
8025         tw32(SNDDATAI_STATSCTRL,
8026              (SNDDATAI_SCTRL_ENABLE |
8027               SNDDATAI_SCTRL_FASTUPD));
8028
8029         /* Setup host coalescing engine. */
8030         tw32(HOSTCC_MODE, 0);
8031         for (i = 0; i < 2000; i++) {
8032                 if (!(tr32(HOSTCC_MODE) & HOSTCC_MODE_ENABLE))
8033                         break;
8034                 udelay(10);
8035         }
8036
8037         __tg3_set_coalesce(tp, &tp->coal);
8038
8039         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
8040                 /* Status/statistics block address.  See tg3_timer,
8041                  * the tg3_periodic_fetch_stats call there, and
8042                  * tg3_get_stats to see how this works for 5705/5750 chips.
8043                  */
8044                 tw32(HOSTCC_STATS_BLK_HOST_ADDR + TG3_64BIT_REG_HIGH,
8045                      ((u64) tp->stats_mapping >> 32));
8046                 tw32(HOSTCC_STATS_BLK_HOST_ADDR + TG3_64BIT_REG_LOW,
8047                      ((u64) tp->stats_mapping & 0xffffffff));
8048                 tw32(HOSTCC_STATS_BLK_NIC_ADDR, NIC_SRAM_STATS_BLK);
8049
8050                 tw32(HOSTCC_STATUS_BLK_NIC_ADDR, NIC_SRAM_STATUS_BLK);
8051
8052                 /* Clear statistics and status block memory areas */
8053                 for (i = NIC_SRAM_STATS_BLK;
8054                      i < NIC_SRAM_STATUS_BLK + TG3_HW_STATUS_SIZE;
8055                      i += sizeof(u32)) {
8056                         tg3_write_mem(tp, i, 0);
8057                         udelay(40);
8058                 }
8059         }
8060
8061         tw32(HOSTCC_MODE, HOSTCC_MODE_ENABLE | tp->coalesce_mode);
8062
8063         tw32(RCVCC_MODE, RCVCC_MODE_ENABLE | RCVCC_MODE_ATTN_ENABLE);
8064         tw32(RCVLPC_MODE, RCVLPC_MODE_ENABLE);
8065         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
8066                 tw32(RCVLSC_MODE, RCVLSC_MODE_ENABLE | RCVLSC_MODE_ATTN_ENABLE);
8067
8068         if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES) {
8069                 tp->tg3_flags2 &= ~TG3_FLG2_PARALLEL_DETECT;
8070                 /* reset to prevent losing 1st rx packet intermittently */
8071                 tw32_f(MAC_RX_MODE, RX_MODE_RESET);
8072                 udelay(10);
8073         }
8074
8075         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
8076                 tp->mac_mode &= MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN;
8077         else
8078                 tp->mac_mode = 0;
8079         tp->mac_mode |= MAC_MODE_TXSTAT_ENABLE | MAC_MODE_RXSTAT_ENABLE |
8080                 MAC_MODE_TDE_ENABLE | MAC_MODE_RDE_ENABLE | MAC_MODE_FHDE_ENABLE;
8081         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
8082             !(tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) &&
8083             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700)
8084                 tp->mac_mode |= MAC_MODE_LINK_POLARITY;
8085         tw32_f(MAC_MODE, tp->mac_mode | MAC_MODE_RXSTAT_CLEAR | MAC_MODE_TXSTAT_CLEAR);
8086         udelay(40);
8087
8088         /* tp->grc_local_ctrl is partially set up during tg3_get_invariants().
8089          * If TG3_FLG2_IS_NIC is zero, we should read the
8090          * register to preserve the GPIO settings for LOMs. The GPIOs,
8091          * whether used as inputs or outputs, are set by boot code after
8092          * reset.
8093          */
8094         if (!(tp->tg3_flags2 & TG3_FLG2_IS_NIC)) {
8095                 u32 gpio_mask;
8096
8097                 gpio_mask = GRC_LCLCTRL_GPIO_OE0 | GRC_LCLCTRL_GPIO_OE1 |
8098                             GRC_LCLCTRL_GPIO_OE2 | GRC_LCLCTRL_GPIO_OUTPUT0 |
8099                             GRC_LCLCTRL_GPIO_OUTPUT1 | GRC_LCLCTRL_GPIO_OUTPUT2;
8100
8101                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752)
8102                         gpio_mask |= GRC_LCLCTRL_GPIO_OE3 |
8103                                      GRC_LCLCTRL_GPIO_OUTPUT3;
8104
8105                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755)
8106                         gpio_mask |= GRC_LCLCTRL_GPIO_UART_SEL;
8107
8108                 tp->grc_local_ctrl &= ~gpio_mask;
8109                 tp->grc_local_ctrl |= tr32(GRC_LOCAL_CTRL) & gpio_mask;
8110
8111                 /* GPIO1 must be driven high for eeprom write protect */
8112                 if (tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT)
8113                         tp->grc_local_ctrl |= (GRC_LCLCTRL_GPIO_OE1 |
8114                                                GRC_LCLCTRL_GPIO_OUTPUT1);
8115         }
8116         tw32_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl);
8117         udelay(100);
8118
8119         if (tp->tg3_flags2 & TG3_FLG2_USING_MSIX) {
8120                 val = tr32(MSGINT_MODE);
8121                 val |= MSGINT_MODE_MULTIVEC_EN | MSGINT_MODE_ENABLE;
8122                 tw32(MSGINT_MODE, val);
8123         }
8124
8125         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
8126                 tw32_f(DMAC_MODE, DMAC_MODE_ENABLE);
8127                 udelay(40);
8128         }
8129
8130         val = (WDMAC_MODE_ENABLE | WDMAC_MODE_TGTABORT_ENAB |
8131                WDMAC_MODE_MSTABORT_ENAB | WDMAC_MODE_PARITYERR_ENAB |
8132                WDMAC_MODE_ADDROFLOW_ENAB | WDMAC_MODE_FIFOOFLOW_ENAB |
8133                WDMAC_MODE_FIFOURUN_ENAB | WDMAC_MODE_FIFOOREAD_ENAB |
8134                WDMAC_MODE_LNGREAD_ENAB);
8135
8136         /* If statement applies to 5705 and 5750 PCI devices only */
8137         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 &&
8138              tp->pci_chip_rev_id != CHIPREV_ID_5705_A0) ||
8139             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750) {
8140                 if ((tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) &&
8141                     (tp->pci_chip_rev_id == CHIPREV_ID_5705_A1 ||
8142                      tp->pci_chip_rev_id == CHIPREV_ID_5705_A2)) {
8143                         /* nothing */
8144                 } else if (!(tr32(TG3PCI_PCISTATE) & PCISTATE_BUS_SPEED_HIGH) &&
8145                            !(tp->tg3_flags2 & TG3_FLG2_IS_5788) &&
8146                            !(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS)) {
8147                         val |= WDMAC_MODE_RX_ACCEL;
8148                 }
8149         }
8150
8151         /* Enable host coalescing bug fix */
8152         if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
8153                 val |= WDMAC_MODE_STATUS_TAG_FIX;
8154
8155         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
8156                 val |= WDMAC_MODE_BURST_ALL_DATA;
8157
8158         tw32_f(WDMAC_MODE, val);
8159         udelay(40);
8160
8161         if (tp->tg3_flags & TG3_FLAG_PCIX_MODE) {
8162                 u16 pcix_cmd;
8163
8164                 pci_read_config_word(tp->pdev, tp->pcix_cap + PCI_X_CMD,
8165                                      &pcix_cmd);
8166                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703) {
8167                         pcix_cmd &= ~PCI_X_CMD_MAX_READ;
8168                         pcix_cmd |= PCI_X_CMD_READ_2K;
8169                 } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
8170                         pcix_cmd &= ~(PCI_X_CMD_MAX_SPLIT | PCI_X_CMD_MAX_READ);
8171                         pcix_cmd |= PCI_X_CMD_READ_2K;
8172                 }
8173                 pci_write_config_word(tp->pdev, tp->pcix_cap + PCI_X_CMD,
8174                                       pcix_cmd);
8175         }
8176
8177         tw32_f(RDMAC_MODE, rdmac_mode);
8178         udelay(40);
8179
8180         tw32(RCVDCC_MODE, RCVDCC_MODE_ENABLE | RCVDCC_MODE_ATTN_ENABLE);
8181         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
8182                 tw32(MBFREE_MODE, MBFREE_MODE_ENABLE);
8183
8184         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761)
8185                 tw32(SNDDATAC_MODE,
8186                      SNDDATAC_MODE_ENABLE | SNDDATAC_MODE_CDELAY);
8187         else
8188                 tw32(SNDDATAC_MODE, SNDDATAC_MODE_ENABLE);
8189
8190         tw32(SNDBDC_MODE, SNDBDC_MODE_ENABLE | SNDBDC_MODE_ATTN_ENABLE);
8191         tw32(RCVBDI_MODE, RCVBDI_MODE_ENABLE | RCVBDI_MODE_RCB_ATTN_ENAB);
8192         tw32(RCVDBDI_MODE, RCVDBDI_MODE_ENABLE | RCVDBDI_MODE_INV_RING_SZ);
8193         tw32(SNDDATAI_MODE, SNDDATAI_MODE_ENABLE);
8194         if (tp->tg3_flags2 & TG3_FLG2_HW_TSO)
8195                 tw32(SNDDATAI_MODE, SNDDATAI_MODE_ENABLE | 0x8);
8196         val = SNDBDI_MODE_ENABLE | SNDBDI_MODE_ATTN_ENABLE;
8197         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
8198                 val |= SNDBDI_MODE_MULTI_TXQ_EN;
8199         tw32(SNDBDI_MODE, val);
8200         tw32(SNDBDS_MODE, SNDBDS_MODE_ENABLE | SNDBDS_MODE_ATTN_ENABLE);
8201
8202         if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0) {
8203                 err = tg3_load_5701_a0_firmware_fix(tp);
8204                 if (err)
8205                         return err;
8206         }
8207
8208         if (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) {
8209                 err = tg3_load_tso_firmware(tp);
8210                 if (err)
8211                         return err;
8212         }
8213
8214         tp->tx_mode = TX_MODE_ENABLE;
8215         if ((tp->tg3_flags3 & TG3_FLG3_5755_PLUS) ||
8216             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
8217                 tp->tx_mode |= TX_MODE_MBUF_LOCKUP_FIX;
8218         tw32_f(MAC_TX_MODE, tp->tx_mode);
8219         udelay(100);
8220
8221         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS) {
8222                 u32 reg = MAC_RSS_INDIR_TBL_0;
8223                 u8 *ent = (u8 *)&val;
8224
8225                 /* Setup the indirection table */
8226                 for (i = 0; i < TG3_RSS_INDIR_TBL_SIZE; i++) {
8227                         int idx = i % sizeof(val);
8228
8229                         ent[idx] = (i % (tp->irq_cnt - 1)) + 1;
8230                         if (idx == sizeof(val) - 1) {
8231                                 tw32(reg, val);
8232                                 reg += 4;
8233                         }
8234                 }
8235
8236                 /* Setup the "secret" hash key. */
8237                 tw32(MAC_RSS_HASH_KEY_0, 0x5f865437);
8238                 tw32(MAC_RSS_HASH_KEY_1, 0xe4ac62cc);
8239                 tw32(MAC_RSS_HASH_KEY_2, 0x50103a45);
8240                 tw32(MAC_RSS_HASH_KEY_3, 0x36621985);
8241                 tw32(MAC_RSS_HASH_KEY_4, 0xbf14c0e8);
8242                 tw32(MAC_RSS_HASH_KEY_5, 0x1bc27a1e);
8243                 tw32(MAC_RSS_HASH_KEY_6, 0x84f4b556);
8244                 tw32(MAC_RSS_HASH_KEY_7, 0x094ea6fe);
8245                 tw32(MAC_RSS_HASH_KEY_8, 0x7dda01e7);
8246                 tw32(MAC_RSS_HASH_KEY_9, 0xc04d7481);
8247         }
8248
8249         tp->rx_mode = RX_MODE_ENABLE;
8250         if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
8251                 tp->rx_mode |= RX_MODE_IPV6_CSUM_ENABLE;
8252
8253         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_RSS)
8254                 tp->rx_mode |= RX_MODE_RSS_ENABLE |
8255                                RX_MODE_RSS_ITBL_HASH_BITS_7 |
8256                                RX_MODE_RSS_IPV6_HASH_EN |
8257                                RX_MODE_RSS_TCP_IPV6_HASH_EN |
8258                                RX_MODE_RSS_IPV4_HASH_EN |
8259                                RX_MODE_RSS_TCP_IPV4_HASH_EN;
8260
8261         tw32_f(MAC_RX_MODE, tp->rx_mode);
8262         udelay(10);
8263
8264         tw32(MAC_LED_CTRL, tp->led_ctrl);
8265
8266         tw32(MAC_MI_STAT, MAC_MI_STAT_LNKSTAT_ATTN_ENAB);
8267         if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) {
8268                 tw32_f(MAC_RX_MODE, RX_MODE_RESET);
8269                 udelay(10);
8270         }
8271         tw32_f(MAC_RX_MODE, tp->rx_mode);
8272         udelay(10);
8273
8274         if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) {
8275                 if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) &&
8276                         !(tp->tg3_flags2 & TG3_FLG2_SERDES_PREEMPHASIS)) {
8277                         /* Set drive transmission level to 1.2V  */
8278                         /* only if the signal pre-emphasis bit is not set  */
8279                         val = tr32(MAC_SERDES_CFG);
8280                         val &= 0xfffff000;
8281                         val |= 0x880;
8282                         tw32(MAC_SERDES_CFG, val);
8283                 }
8284                 if (tp->pci_chip_rev_id == CHIPREV_ID_5703_A1)
8285                         tw32(MAC_SERDES_CFG, 0x616000);
8286         }
8287
8288         /* Prevent chip from dropping frames when flow control
8289          * is enabled.
8290          */
8291         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
8292                 val = 1;
8293         else
8294                 val = 2;
8295         tw32_f(MAC_LOW_WMARK_MAX_RX_FRAME, val);
8296
8297         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 &&
8298             (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)) {
8299                 /* Use hardware link auto-negotiation */
8300                 tp->tg3_flags2 |= TG3_FLG2_HW_AUTONEG;
8301         }
8302
8303         if ((tp->tg3_flags2 & TG3_FLG2_MII_SERDES) &&
8304             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714)) {
8305                 u32 tmp;
8306
8307                 tmp = tr32(SERDES_RX_CTRL);
8308                 tw32(SERDES_RX_CTRL, tmp | SERDES_RX_SIG_DETECT);
8309                 tp->grc_local_ctrl &= ~GRC_LCLCTRL_USE_EXT_SIG_DETECT;
8310                 tp->grc_local_ctrl |= GRC_LCLCTRL_USE_SIG_DETECT;
8311                 tw32(GRC_LOCAL_CTRL, tp->grc_local_ctrl);
8312         }
8313
8314         if (!(tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB)) {
8315                 if (tp->link_config.phy_is_low_power) {
8316                         tp->link_config.phy_is_low_power = 0;
8317                         tp->link_config.speed = tp->link_config.orig_speed;
8318                         tp->link_config.duplex = tp->link_config.orig_duplex;
8319                         tp->link_config.autoneg = tp->link_config.orig_autoneg;
8320                 }
8321
8322                 err = tg3_setup_phy(tp, 0);
8323                 if (err)
8324                         return err;
8325
8326                 if (!(tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) &&
8327                     !(tp->tg3_flags3 & TG3_FLG3_PHY_IS_FET)) {
8328                         u32 tmp;
8329
8330                         /* Clear CRC stats. */
8331                         if (!tg3_readphy(tp, MII_TG3_TEST1, &tmp)) {
8332                                 tg3_writephy(tp, MII_TG3_TEST1,
8333                                              tmp | MII_TG3_TEST1_CRC_EN);
8334                                 tg3_readphy(tp, 0x14, &tmp);
8335                         }
8336                 }
8337         }
8338
8339         __tg3_set_rx_mode(tp->dev);
8340
8341         /* Initialize receive rules. */
8342         tw32(MAC_RCV_RULE_0,  0xc2000000 & RCV_RULE_DISABLE_MASK);
8343         tw32(MAC_RCV_VALUE_0, 0xffffffff & RCV_RULE_DISABLE_MASK);
8344         tw32(MAC_RCV_RULE_1,  0x86000004 & RCV_RULE_DISABLE_MASK);
8345         tw32(MAC_RCV_VALUE_1, 0xffffffff & RCV_RULE_DISABLE_MASK);
8346
8347         if ((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
8348             !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
8349                 limit = 8;
8350         else
8351                 limit = 16;
8352         if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF)
8353                 limit -= 4;
8354         switch (limit) {
8355         case 16:
8356                 tw32(MAC_RCV_RULE_15,  0); tw32(MAC_RCV_VALUE_15,  0);
8357         case 15:
8358                 tw32(MAC_RCV_RULE_14,  0); tw32(MAC_RCV_VALUE_14,  0);
8359         case 14:
8360                 tw32(MAC_RCV_RULE_13,  0); tw32(MAC_RCV_VALUE_13,  0);
8361         case 13:
8362                 tw32(MAC_RCV_RULE_12,  0); tw32(MAC_RCV_VALUE_12,  0);
8363         case 12:
8364                 tw32(MAC_RCV_RULE_11,  0); tw32(MAC_RCV_VALUE_11,  0);
8365         case 11:
8366                 tw32(MAC_RCV_RULE_10,  0); tw32(MAC_RCV_VALUE_10,  0);
8367         case 10:
8368                 tw32(MAC_RCV_RULE_9,  0); tw32(MAC_RCV_VALUE_9,  0);
8369         case 9:
8370                 tw32(MAC_RCV_RULE_8,  0); tw32(MAC_RCV_VALUE_8,  0);
8371         case 8:
8372                 tw32(MAC_RCV_RULE_7,  0); tw32(MAC_RCV_VALUE_7,  0);
8373         case 7:
8374                 tw32(MAC_RCV_RULE_6,  0); tw32(MAC_RCV_VALUE_6,  0);
8375         case 6:
8376                 tw32(MAC_RCV_RULE_5,  0); tw32(MAC_RCV_VALUE_5,  0);
8377         case 5:
8378                 tw32(MAC_RCV_RULE_4,  0); tw32(MAC_RCV_VALUE_4,  0);
8379         case 4:
8380                 /* tw32(MAC_RCV_RULE_3,  0); tw32(MAC_RCV_VALUE_3,  0); */
8381         case 3:
8382                 /* tw32(MAC_RCV_RULE_2,  0); tw32(MAC_RCV_VALUE_2,  0); */
8383         case 2:
8384         case 1:
8385
8386         default:
8387                 break;
8388         }
8389
8390         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
8391                 /* Write our heartbeat update interval to APE. */
8392                 tg3_ape_write32(tp, TG3_APE_HOST_HEARTBEAT_INT_MS,
8393                                 APE_HOST_HEARTBEAT_INT_DISABLE);
8394
8395         tg3_write_sig_post_reset(tp, RESET_KIND_INIT);
8396
8397         return 0;
8398 }
8399
8400 /* Called at device open time to get the chip ready for
8401  * packet processing.  Invoked with tp->lock held.
8402  */
8403 static int tg3_init_hw(struct tg3 *tp, int reset_phy)
8404 {
8405         tg3_switch_clocks(tp);
8406
8407         tw32(TG3PCI_MEM_WIN_BASE_ADDR, 0);
8408
8409         return tg3_reset_hw(tp, reset_phy);
8410 }
8411
8412 #define TG3_STAT_ADD32(PSTAT, REG) \
8413 do {    u32 __val = tr32(REG); \
8414         (PSTAT)->low += __val; \
8415         if ((PSTAT)->low < __val) \
8416                 (PSTAT)->high += 1; \
8417 } while (0)
8418
8419 static void tg3_periodic_fetch_stats(struct tg3 *tp)
8420 {
8421         struct tg3_hw_stats *sp = tp->hw_stats;
8422
8423         if (!netif_carrier_ok(tp->dev))
8424                 return;
8425
8426         TG3_STAT_ADD32(&sp->tx_octets, MAC_TX_STATS_OCTETS);
8427         TG3_STAT_ADD32(&sp->tx_collisions, MAC_TX_STATS_COLLISIONS);
8428         TG3_STAT_ADD32(&sp->tx_xon_sent, MAC_TX_STATS_XON_SENT);
8429         TG3_STAT_ADD32(&sp->tx_xoff_sent, MAC_TX_STATS_XOFF_SENT);
8430         TG3_STAT_ADD32(&sp->tx_mac_errors, MAC_TX_STATS_MAC_ERRORS);
8431         TG3_STAT_ADD32(&sp->tx_single_collisions, MAC_TX_STATS_SINGLE_COLLISIONS);
8432         TG3_STAT_ADD32(&sp->tx_mult_collisions, MAC_TX_STATS_MULT_COLLISIONS);
8433         TG3_STAT_ADD32(&sp->tx_deferred, MAC_TX_STATS_DEFERRED);
8434         TG3_STAT_ADD32(&sp->tx_excessive_collisions, MAC_TX_STATS_EXCESSIVE_COL);
8435         TG3_STAT_ADD32(&sp->tx_late_collisions, MAC_TX_STATS_LATE_COL);
8436         TG3_STAT_ADD32(&sp->tx_ucast_packets, MAC_TX_STATS_UCAST);
8437         TG3_STAT_ADD32(&sp->tx_mcast_packets, MAC_TX_STATS_MCAST);
8438         TG3_STAT_ADD32(&sp->tx_bcast_packets, MAC_TX_STATS_BCAST);
8439
8440         TG3_STAT_ADD32(&sp->rx_octets, MAC_RX_STATS_OCTETS);
8441         TG3_STAT_ADD32(&sp->rx_fragments, MAC_RX_STATS_FRAGMENTS);
8442         TG3_STAT_ADD32(&sp->rx_ucast_packets, MAC_RX_STATS_UCAST);
8443         TG3_STAT_ADD32(&sp->rx_mcast_packets, MAC_RX_STATS_MCAST);
8444         TG3_STAT_ADD32(&sp->rx_bcast_packets, MAC_RX_STATS_BCAST);
8445         TG3_STAT_ADD32(&sp->rx_fcs_errors, MAC_RX_STATS_FCS_ERRORS);
8446         TG3_STAT_ADD32(&sp->rx_align_errors, MAC_RX_STATS_ALIGN_ERRORS);
8447         TG3_STAT_ADD32(&sp->rx_xon_pause_rcvd, MAC_RX_STATS_XON_PAUSE_RECVD);
8448         TG3_STAT_ADD32(&sp->rx_xoff_pause_rcvd, MAC_RX_STATS_XOFF_PAUSE_RECVD);
8449         TG3_STAT_ADD32(&sp->rx_mac_ctrl_rcvd, MAC_RX_STATS_MAC_CTRL_RECVD);
8450         TG3_STAT_ADD32(&sp->rx_xoff_entered, MAC_RX_STATS_XOFF_ENTERED);
8451         TG3_STAT_ADD32(&sp->rx_frame_too_long_errors, MAC_RX_STATS_FRAME_TOO_LONG);
8452         TG3_STAT_ADD32(&sp->rx_jabbers, MAC_RX_STATS_JABBERS);
8453         TG3_STAT_ADD32(&sp->rx_undersize_packets, MAC_RX_STATS_UNDERSIZE);
8454
8455         TG3_STAT_ADD32(&sp->rxbds_empty, RCVLPC_NO_RCV_BD_CNT);
8456         TG3_STAT_ADD32(&sp->rx_discards, RCVLPC_IN_DISCARDS_CNT);
8457         TG3_STAT_ADD32(&sp->rx_errors, RCVLPC_IN_ERRORS_CNT);
8458 }
8459
8460 static void tg3_timer(unsigned long __opaque)
8461 {
8462         struct tg3 *tp = (struct tg3 *) __opaque;
8463
8464         if (tp->irq_sync)
8465                 goto restart_timer;
8466
8467         spin_lock(&tp->lock);
8468
8469         if (!(tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)) {
8470                 /* All of this garbage is because when using non-tagged
8471                  * IRQ status the mailbox/status_block protocol the chip
8472                  * uses with the cpu is race prone.
8473                  */
8474                 if (tp->napi[0].hw_status->status & SD_STATUS_UPDATED) {
8475                         tw32(GRC_LOCAL_CTRL,
8476                              tp->grc_local_ctrl | GRC_LCLCTRL_SETINT);
8477                 } else {
8478                         tw32(HOSTCC_MODE, tp->coalesce_mode |
8479                              HOSTCC_MODE_ENABLE | HOSTCC_MODE_NOW);
8480                 }
8481
8482                 if (!(tr32(WDMAC_MODE) & WDMAC_MODE_ENABLE)) {
8483                         tp->tg3_flags2 |= TG3_FLG2_RESTART_TIMER;
8484                         spin_unlock(&tp->lock);
8485                         schedule_work(&tp->reset_task);
8486                         return;
8487                 }
8488         }
8489
8490         /* This part only runs once per second. */
8491         if (!--tp->timer_counter) {
8492                 if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
8493                         tg3_periodic_fetch_stats(tp);
8494
8495                 if (tp->tg3_flags & TG3_FLAG_USE_LINKCHG_REG) {
8496                         u32 mac_stat;
8497                         int phy_event;
8498
8499                         mac_stat = tr32(MAC_STATUS);
8500
8501                         phy_event = 0;
8502                         if (tp->tg3_flags & TG3_FLAG_USE_MI_INTERRUPT) {
8503                                 if (mac_stat & MAC_STATUS_MI_INTERRUPT)
8504                                         phy_event = 1;
8505                         } else if (mac_stat & MAC_STATUS_LNKSTATE_CHANGED)
8506                                 phy_event = 1;
8507
8508                         if (phy_event)
8509                                 tg3_setup_phy(tp, 0);
8510                 } else if (tp->tg3_flags & TG3_FLAG_POLL_SERDES) {
8511                         u32 mac_stat = tr32(MAC_STATUS);
8512                         int need_setup = 0;
8513
8514                         if (netif_carrier_ok(tp->dev) &&
8515                             (mac_stat & MAC_STATUS_LNKSTATE_CHANGED)) {
8516                                 need_setup = 1;
8517                         }
8518                         if (! netif_carrier_ok(tp->dev) &&
8519                             (mac_stat & (MAC_STATUS_PCS_SYNCED |
8520                                          MAC_STATUS_SIGNAL_DET))) {
8521                                 need_setup = 1;
8522                         }
8523                         if (need_setup) {
8524                                 if (!tp->serdes_counter) {
8525                                         tw32_f(MAC_MODE,
8526                                              (tp->mac_mode &
8527                                               ~MAC_MODE_PORT_MODE_MASK));
8528                                         udelay(40);
8529                                         tw32_f(MAC_MODE, tp->mac_mode);
8530                                         udelay(40);
8531                                 }
8532                                 tg3_setup_phy(tp, 0);
8533                         }
8534                 } else if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES)
8535                         tg3_serdes_parallel_detect(tp);
8536
8537                 tp->timer_counter = tp->timer_multiplier;
8538         }
8539
8540         /* Heartbeat is only sent once every 2 seconds.
8541          *
8542          * The heartbeat is to tell the ASF firmware that the host
8543          * driver is still alive.  In the event that the OS crashes,
8544          * ASF needs to reset the hardware to free up the FIFO space
8545          * that may be filled with rx packets destined for the host.
8546          * If the FIFO is full, ASF will no longer function properly.
8547          *
8548          * Unintended resets have been reported on real time kernels
8549          * where the timer doesn't run on time.  Netpoll will also have
8550          * same problem.
8551          *
8552          * The new FWCMD_NICDRV_ALIVE3 command tells the ASF firmware
8553          * to check the ring condition when the heartbeat is expiring
8554          * before doing the reset.  This will prevent most unintended
8555          * resets.
8556          */
8557         if (!--tp->asf_counter) {
8558                 if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) &&
8559                     !(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)) {
8560                         tg3_wait_for_event_ack(tp);
8561
8562                         tg3_write_mem(tp, NIC_SRAM_FW_CMD_MBOX,
8563                                       FWCMD_NICDRV_ALIVE3);
8564                         tg3_write_mem(tp, NIC_SRAM_FW_CMD_LEN_MBOX, 4);
8565                         tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX,
8566                                       TG3_FW_UPDATE_TIMEOUT_SEC);
8567
8568                         tg3_generate_fw_event(tp);
8569                 }
8570                 tp->asf_counter = tp->asf_multiplier;
8571         }
8572
8573         spin_unlock(&tp->lock);
8574
8575 restart_timer:
8576         tp->timer.expires = jiffies + tp->timer_offset;
8577         add_timer(&tp->timer);
8578 }
8579
8580 static int tg3_request_irq(struct tg3 *tp, int irq_num)
8581 {
8582         irq_handler_t fn;
8583         unsigned long flags;
8584         char *name;
8585         struct tg3_napi *tnapi = &tp->napi[irq_num];
8586
8587         if (tp->irq_cnt == 1)
8588                 name = tp->dev->name;
8589         else {
8590                 name = &tnapi->irq_lbl[0];
8591                 snprintf(name, IFNAMSIZ, "%s-%d", tp->dev->name, irq_num);
8592                 name[IFNAMSIZ-1] = 0;
8593         }
8594
8595         if (tp->tg3_flags2 & TG3_FLG2_USING_MSI_OR_MSIX) {
8596                 fn = tg3_msi;
8597                 if (tp->tg3_flags2 & TG3_FLG2_1SHOT_MSI)
8598                         fn = tg3_msi_1shot;
8599                 flags = IRQF_SAMPLE_RANDOM;
8600         } else {
8601                 fn = tg3_interrupt;
8602                 if (tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)
8603                         fn = tg3_interrupt_tagged;
8604                 flags = IRQF_SHARED | IRQF_SAMPLE_RANDOM;
8605         }
8606
8607         return request_irq(tnapi->irq_vec, fn, flags, name, tnapi);
8608 }
8609
8610 static int tg3_test_interrupt(struct tg3 *tp)
8611 {
8612         struct tg3_napi *tnapi = &tp->napi[0];
8613         struct net_device *dev = tp->dev;
8614         int err, i, intr_ok = 0;
8615         u32 val;
8616
8617         if (!netif_running(dev))
8618                 return -ENODEV;
8619
8620         tg3_disable_ints(tp);
8621
8622         free_irq(tnapi->irq_vec, tnapi);
8623
8624         /*
8625          * Turn off MSI one shot mode.  Otherwise this test has no
8626          * observable way to know whether the interrupt was delivered.
8627          */
8628         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
8629              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765) &&
8630             (tp->tg3_flags2 & TG3_FLG2_USING_MSI)) {
8631                 val = tr32(MSGINT_MODE) | MSGINT_MODE_ONE_SHOT_DISABLE;
8632                 tw32(MSGINT_MODE, val);
8633         }
8634
8635         err = request_irq(tnapi->irq_vec, tg3_test_isr,
8636                           IRQF_SHARED | IRQF_SAMPLE_RANDOM, dev->name, tnapi);
8637         if (err)
8638                 return err;
8639
8640         tnapi->hw_status->status &= ~SD_STATUS_UPDATED;
8641         tg3_enable_ints(tp);
8642
8643         tw32_f(HOSTCC_MODE, tp->coalesce_mode | HOSTCC_MODE_ENABLE |
8644                tnapi->coal_now);
8645
8646         for (i = 0; i < 5; i++) {
8647                 u32 int_mbox, misc_host_ctrl;
8648
8649                 int_mbox = tr32_mailbox(tnapi->int_mbox);
8650                 misc_host_ctrl = tr32(TG3PCI_MISC_HOST_CTRL);
8651
8652                 if ((int_mbox != 0) ||
8653                     (misc_host_ctrl & MISC_HOST_CTRL_MASK_PCI_INT)) {
8654                         intr_ok = 1;
8655                         break;
8656                 }
8657
8658                 msleep(10);
8659         }
8660
8661         tg3_disable_ints(tp);
8662
8663         free_irq(tnapi->irq_vec, tnapi);
8664
8665         err = tg3_request_irq(tp, 0);
8666
8667         if (err)
8668                 return err;
8669
8670         if (intr_ok) {
8671                 /* Reenable MSI one shot mode. */
8672                 if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
8673                      GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765) &&
8674                     (tp->tg3_flags2 & TG3_FLG2_USING_MSI)) {
8675                         val = tr32(MSGINT_MODE) & ~MSGINT_MODE_ONE_SHOT_DISABLE;
8676                         tw32(MSGINT_MODE, val);
8677                 }
8678                 return 0;
8679         }
8680
8681         return -EIO;
8682 }
8683
8684 /* Returns 0 if MSI test succeeds or MSI test fails and INTx mode is
8685  * successfully restored
8686  */
8687 static int tg3_test_msi(struct tg3 *tp)
8688 {
8689         int err;
8690         u16 pci_cmd;
8691
8692         if (!(tp->tg3_flags2 & TG3_FLG2_USING_MSI))
8693                 return 0;
8694
8695         /* Turn off SERR reporting in case MSI terminates with Master
8696          * Abort.
8697          */
8698         pci_read_config_word(tp->pdev, PCI_COMMAND, &pci_cmd);
8699         pci_write_config_word(tp->pdev, PCI_COMMAND,
8700                               pci_cmd & ~PCI_COMMAND_SERR);
8701
8702         err = tg3_test_interrupt(tp);
8703
8704         pci_write_config_word(tp->pdev, PCI_COMMAND, pci_cmd);
8705
8706         if (!err)
8707                 return 0;
8708
8709         /* other failures */
8710         if (err != -EIO)
8711                 return err;
8712
8713         /* MSI test failed, go back to INTx mode */
8714         netdev_warn(tp->dev, "No interrupt was generated using MSI. Switching "
8715                     "to INTx mode. Please report this failure to the PCI "
8716                     "maintainer and include system chipset information\n");
8717
8718         free_irq(tp->napi[0].irq_vec, &tp->napi[0]);
8719
8720         pci_disable_msi(tp->pdev);
8721
8722         tp->tg3_flags2 &= ~TG3_FLG2_USING_MSI;
8723         tp->napi[0].irq_vec = tp->pdev->irq;
8724
8725         err = tg3_request_irq(tp, 0);
8726         if (err)
8727                 return err;
8728
8729         /* Need to reset the chip because the MSI cycle may have terminated
8730          * with Master Abort.
8731          */
8732         tg3_full_lock(tp, 1);
8733
8734         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
8735         err = tg3_init_hw(tp, 1);
8736
8737         tg3_full_unlock(tp);
8738
8739         if (err)
8740                 free_irq(tp->napi[0].irq_vec, &tp->napi[0]);
8741
8742         return err;
8743 }
8744
8745 static int tg3_request_firmware(struct tg3 *tp)
8746 {
8747         const __be32 *fw_data;
8748
8749         if (request_firmware(&tp->fw, tp->fw_needed, &tp->pdev->dev)) {
8750                 netdev_err(tp->dev, "Failed to load firmware \"%s\"\n",
8751                            tp->fw_needed);
8752                 return -ENOENT;
8753         }
8754
8755         fw_data = (void *)tp->fw->data;
8756
8757         /* Firmware blob starts with version numbers, followed by
8758          * start address and _full_ length including BSS sections
8759          * (which must be longer than the actual data, of course
8760          */
8761
8762         tp->fw_len = be32_to_cpu(fw_data[2]);   /* includes bss */
8763         if (tp->fw_len < (tp->fw->size - 12)) {
8764                 netdev_err(tp->dev, "bogus length %d in \"%s\"\n",
8765                            tp->fw_len, tp->fw_needed);
8766                 release_firmware(tp->fw);
8767                 tp->fw = NULL;
8768                 return -EINVAL;
8769         }
8770
8771         /* We no longer need firmware; we have it. */
8772         tp->fw_needed = NULL;
8773         return 0;
8774 }
8775
8776 static bool tg3_enable_msix(struct tg3 *tp)
8777 {
8778         int i, rc, cpus = num_online_cpus();
8779         struct msix_entry msix_ent[tp->irq_max];
8780
8781         if (cpus == 1)
8782                 /* Just fallback to the simpler MSI mode. */
8783                 return false;
8784
8785         /*
8786          * We want as many rx rings enabled as there are cpus.
8787          * The first MSIX vector only deals with link interrupts, etc,
8788          * so we add one to the number of vectors we are requesting.
8789          */
8790         tp->irq_cnt = min_t(unsigned, cpus + 1, tp->irq_max);
8791
8792         for (i = 0; i < tp->irq_max; i++) {
8793                 msix_ent[i].entry  = i;
8794                 msix_ent[i].vector = 0;
8795         }
8796
8797         rc = pci_enable_msix(tp->pdev, msix_ent, tp->irq_cnt);
8798         if (rc < 0) {
8799                 return false;
8800         } else if (rc != 0) {
8801                 if (pci_enable_msix(tp->pdev, msix_ent, rc))
8802                         return false;
8803                 netdev_notice(tp->dev, "Requested %d MSI-X vectors, received %d\n",
8804                               tp->irq_cnt, rc);
8805                 tp->irq_cnt = rc;
8806         }
8807
8808         for (i = 0; i < tp->irq_max; i++)
8809                 tp->napi[i].irq_vec = msix_ent[i].vector;
8810
8811         tp->dev->real_num_tx_queues = 1;
8812         if (tp->irq_cnt > 1) {
8813                 tp->tg3_flags3 |= TG3_FLG3_ENABLE_RSS;
8814
8815                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717) {
8816                         tp->tg3_flags3 |= TG3_FLG3_ENABLE_TSS;
8817                         tp->dev->real_num_tx_queues = tp->irq_cnt - 1;
8818                 }
8819         }
8820
8821         return true;
8822 }
8823
8824 static void tg3_ints_init(struct tg3 *tp)
8825 {
8826         if ((tp->tg3_flags & TG3_FLAG_SUPPORT_MSI_OR_MSIX) &&
8827             !(tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)) {
8828                 /* All MSI supporting chips should support tagged
8829                  * status.  Assert that this is the case.
8830                  */
8831                 netdev_warn(tp->dev,
8832                             "MSI without TAGGED_STATUS? Not using MSI\n");
8833                 goto defcfg;
8834         }
8835
8836         if ((tp->tg3_flags & TG3_FLAG_SUPPORT_MSIX) && tg3_enable_msix(tp))
8837                 tp->tg3_flags2 |= TG3_FLG2_USING_MSIX;
8838         else if ((tp->tg3_flags & TG3_FLAG_SUPPORT_MSI) &&
8839                  pci_enable_msi(tp->pdev) == 0)
8840                 tp->tg3_flags2 |= TG3_FLG2_USING_MSI;
8841
8842         if (tp->tg3_flags2 & TG3_FLG2_USING_MSI_OR_MSIX) {
8843                 u32 msi_mode = tr32(MSGINT_MODE);
8844                 if (tp->tg3_flags2 & TG3_FLG2_USING_MSIX)
8845                         msi_mode |= MSGINT_MODE_MULTIVEC_EN;
8846                 tw32(MSGINT_MODE, msi_mode | MSGINT_MODE_ENABLE);
8847         }
8848 defcfg:
8849         if (!(tp->tg3_flags2 & TG3_FLG2_USING_MSIX)) {
8850                 tp->irq_cnt = 1;
8851                 tp->napi[0].irq_vec = tp->pdev->irq;
8852                 tp->dev->real_num_tx_queues = 1;
8853         }
8854 }
8855
8856 static void tg3_ints_fini(struct tg3 *tp)
8857 {
8858         if (tp->tg3_flags2 & TG3_FLG2_USING_MSIX)
8859                 pci_disable_msix(tp->pdev);
8860         else if (tp->tg3_flags2 & TG3_FLG2_USING_MSI)
8861                 pci_disable_msi(tp->pdev);
8862         tp->tg3_flags2 &= ~TG3_FLG2_USING_MSI_OR_MSIX;
8863         tp->tg3_flags3 &= ~TG3_FLG3_ENABLE_RSS;
8864 }
8865
8866 static int tg3_open(struct net_device *dev)
8867 {
8868         struct tg3 *tp = netdev_priv(dev);
8869         int i, err;
8870
8871         if (tp->fw_needed) {
8872                 err = tg3_request_firmware(tp);
8873                 if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0) {
8874                         if (err)
8875                                 return err;
8876                 } else if (err) {
8877                         netdev_warn(tp->dev, "TSO capability disabled\n");
8878                         tp->tg3_flags2 &= ~TG3_FLG2_TSO_CAPABLE;
8879                 } else if (!(tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE)) {
8880                         netdev_notice(tp->dev, "TSO capability restored\n");
8881                         tp->tg3_flags2 |= TG3_FLG2_TSO_CAPABLE;
8882                 }
8883         }
8884
8885         netif_carrier_off(tp->dev);
8886
8887         err = tg3_set_power_state(tp, PCI_D0);
8888         if (err)
8889                 return err;
8890
8891         tg3_full_lock(tp, 0);
8892
8893         tg3_disable_ints(tp);
8894         tp->tg3_flags &= ~TG3_FLAG_INIT_COMPLETE;
8895
8896         tg3_full_unlock(tp);
8897
8898         /*
8899          * Setup interrupts first so we know how
8900          * many NAPI resources to allocate
8901          */
8902         tg3_ints_init(tp);
8903
8904         /* The placement of this call is tied
8905          * to the setup and use of Host TX descriptors.
8906          */
8907         err = tg3_alloc_consistent(tp);
8908         if (err)
8909                 goto err_out1;
8910
8911         tg3_napi_enable(tp);
8912
8913         for (i = 0; i < tp->irq_cnt; i++) {
8914                 struct tg3_napi *tnapi = &tp->napi[i];
8915                 err = tg3_request_irq(tp, i);
8916                 if (err) {
8917                         for (i--; i >= 0; i--)
8918                                 free_irq(tnapi->irq_vec, tnapi);
8919                         break;
8920                 }
8921         }
8922
8923         if (err)
8924                 goto err_out2;
8925
8926         tg3_full_lock(tp, 0);
8927
8928         err = tg3_init_hw(tp, 1);
8929         if (err) {
8930                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
8931                 tg3_free_rings(tp);
8932         } else {
8933                 if (tp->tg3_flags & TG3_FLAG_TAGGED_STATUS)
8934                         tp->timer_offset = HZ;
8935                 else
8936                         tp->timer_offset = HZ / 10;
8937
8938                 BUG_ON(tp->timer_offset > HZ);
8939                 tp->timer_counter = tp->timer_multiplier =
8940                         (HZ / tp->timer_offset);
8941                 tp->asf_counter = tp->asf_multiplier =
8942                         ((HZ / tp->timer_offset) * 2);
8943
8944                 init_timer(&tp->timer);
8945                 tp->timer.expires = jiffies + tp->timer_offset;
8946                 tp->timer.data = (unsigned long) tp;
8947                 tp->timer.function = tg3_timer;
8948         }
8949
8950         tg3_full_unlock(tp);
8951
8952         if (err)
8953                 goto err_out3;
8954
8955         if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
8956                 err = tg3_test_msi(tp);
8957
8958                 if (err) {
8959                         tg3_full_lock(tp, 0);
8960                         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
8961                         tg3_free_rings(tp);
8962                         tg3_full_unlock(tp);
8963
8964                         goto err_out2;
8965                 }
8966
8967                 if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5717 &&
8968                     GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_57765 &&
8969                     (tp->tg3_flags2 & TG3_FLG2_USING_MSI) &&
8970                     (tp->tg3_flags2 & TG3_FLG2_1SHOT_MSI)) {
8971                         u32 val = tr32(PCIE_TRANSACTION_CFG);
8972
8973                         tw32(PCIE_TRANSACTION_CFG,
8974                              val | PCIE_TRANS_CFG_1SHOT_MSI);
8975                 }
8976         }
8977
8978         tg3_phy_start(tp);
8979
8980         tg3_full_lock(tp, 0);
8981
8982         add_timer(&tp->timer);
8983         tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
8984         tg3_enable_ints(tp);
8985
8986         tg3_full_unlock(tp);
8987
8988         netif_tx_start_all_queues(dev);
8989
8990         return 0;
8991
8992 err_out3:
8993         for (i = tp->irq_cnt - 1; i >= 0; i--) {
8994                 struct tg3_napi *tnapi = &tp->napi[i];
8995                 free_irq(tnapi->irq_vec, tnapi);
8996         }
8997
8998 err_out2:
8999         tg3_napi_disable(tp);
9000         tg3_free_consistent(tp);
9001
9002 err_out1:
9003         tg3_ints_fini(tp);
9004         return err;
9005 }
9006
9007 static struct net_device_stats *tg3_get_stats(struct net_device *);
9008 static struct tg3_ethtool_stats *tg3_get_estats(struct tg3 *);
9009
9010 static int tg3_close(struct net_device *dev)
9011 {
9012         int i;
9013         struct tg3 *tp = netdev_priv(dev);
9014
9015         tg3_napi_disable(tp);
9016         cancel_work_sync(&tp->reset_task);
9017
9018         netif_tx_stop_all_queues(dev);
9019
9020         del_timer_sync(&tp->timer);
9021
9022         tg3_phy_stop(tp);
9023
9024         tg3_full_lock(tp, 1);
9025
9026         tg3_disable_ints(tp);
9027
9028         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
9029         tg3_free_rings(tp);
9030         tp->tg3_flags &= ~TG3_FLAG_INIT_COMPLETE;
9031
9032         tg3_full_unlock(tp);
9033
9034         for (i = tp->irq_cnt - 1; i >= 0; i--) {
9035                 struct tg3_napi *tnapi = &tp->napi[i];
9036                 free_irq(tnapi->irq_vec, tnapi);
9037         }
9038
9039         tg3_ints_fini(tp);
9040
9041         memcpy(&tp->net_stats_prev, tg3_get_stats(tp->dev),
9042                sizeof(tp->net_stats_prev));
9043         memcpy(&tp->estats_prev, tg3_get_estats(tp),
9044                sizeof(tp->estats_prev));
9045
9046         tg3_free_consistent(tp);
9047
9048         tg3_set_power_state(tp, PCI_D3hot);
9049
9050         netif_carrier_off(tp->dev);
9051
9052         return 0;
9053 }
9054
9055 static inline unsigned long get_stat64(tg3_stat64_t *val)
9056 {
9057         unsigned long ret;
9058
9059 #if (BITS_PER_LONG == 32)
9060         ret = val->low;
9061 #else
9062         ret = ((u64)val->high << 32) | ((u64)val->low);
9063 #endif
9064         return ret;
9065 }
9066
9067 static inline u64 get_estat64(tg3_stat64_t *val)
9068 {
9069        return ((u64)val->high << 32) | ((u64)val->low);
9070 }
9071
9072 static unsigned long calc_crc_errors(struct tg3 *tp)
9073 {
9074         struct tg3_hw_stats *hw_stats = tp->hw_stats;
9075
9076         if (!(tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) &&
9077             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
9078              GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)) {
9079                 u32 val;
9080
9081                 spin_lock_bh(&tp->lock);
9082                 if (!tg3_readphy(tp, MII_TG3_TEST1, &val)) {
9083                         tg3_writephy(tp, MII_TG3_TEST1,
9084                                      val | MII_TG3_TEST1_CRC_EN);
9085                         tg3_readphy(tp, 0x14, &val);
9086                 } else
9087                         val = 0;
9088                 spin_unlock_bh(&tp->lock);
9089
9090                 tp->phy_crc_errors += val;
9091
9092                 return tp->phy_crc_errors;
9093         }
9094
9095         return get_stat64(&hw_stats->rx_fcs_errors);
9096 }
9097
9098 #define ESTAT_ADD(member) \
9099         estats->member =        old_estats->member + \
9100                                 get_estat64(&hw_stats->member)
9101
9102 static struct tg3_ethtool_stats *tg3_get_estats(struct tg3 *tp)
9103 {
9104         struct tg3_ethtool_stats *estats = &tp->estats;
9105         struct tg3_ethtool_stats *old_estats = &tp->estats_prev;
9106         struct tg3_hw_stats *hw_stats = tp->hw_stats;
9107
9108         if (!hw_stats)
9109                 return old_estats;
9110
9111         ESTAT_ADD(rx_octets);
9112         ESTAT_ADD(rx_fragments);
9113         ESTAT_ADD(rx_ucast_packets);
9114         ESTAT_ADD(rx_mcast_packets);
9115         ESTAT_ADD(rx_bcast_packets);
9116         ESTAT_ADD(rx_fcs_errors);
9117         ESTAT_ADD(rx_align_errors);
9118         ESTAT_ADD(rx_xon_pause_rcvd);
9119         ESTAT_ADD(rx_xoff_pause_rcvd);
9120         ESTAT_ADD(rx_mac_ctrl_rcvd);
9121         ESTAT_ADD(rx_xoff_entered);
9122         ESTAT_ADD(rx_frame_too_long_errors);
9123         ESTAT_ADD(rx_jabbers);
9124         ESTAT_ADD(rx_undersize_packets);
9125         ESTAT_ADD(rx_in_length_errors);
9126         ESTAT_ADD(rx_out_length_errors);
9127         ESTAT_ADD(rx_64_or_less_octet_packets);
9128         ESTAT_ADD(rx_65_to_127_octet_packets);
9129         ESTAT_ADD(rx_128_to_255_octet_packets);
9130         ESTAT_ADD(rx_256_to_511_octet_packets);
9131         ESTAT_ADD(rx_512_to_1023_octet_packets);
9132         ESTAT_ADD(rx_1024_to_1522_octet_packets);
9133         ESTAT_ADD(rx_1523_to_2047_octet_packets);
9134         ESTAT_ADD(rx_2048_to_4095_octet_packets);
9135         ESTAT_ADD(rx_4096_to_8191_octet_packets);
9136         ESTAT_ADD(rx_8192_to_9022_octet_packets);
9137
9138         ESTAT_ADD(tx_octets);
9139         ESTAT_ADD(tx_collisions);
9140         ESTAT_ADD(tx_xon_sent);
9141         ESTAT_ADD(tx_xoff_sent);
9142         ESTAT_ADD(tx_flow_control);
9143         ESTAT_ADD(tx_mac_errors);
9144         ESTAT_ADD(tx_single_collisions);
9145         ESTAT_ADD(tx_mult_collisions);
9146         ESTAT_ADD(tx_deferred);
9147         ESTAT_ADD(tx_excessive_collisions);
9148         ESTAT_ADD(tx_late_collisions);
9149         ESTAT_ADD(tx_collide_2times);
9150         ESTAT_ADD(tx_collide_3times);
9151         ESTAT_ADD(tx_collide_4times);
9152         ESTAT_ADD(tx_collide_5times);
9153         ESTAT_ADD(tx_collide_6times);
9154         ESTAT_ADD(tx_collide_7times);
9155         ESTAT_ADD(tx_collide_8times);
9156         ESTAT_ADD(tx_collide_9times);
9157         ESTAT_ADD(tx_collide_10times);
9158         ESTAT_ADD(tx_collide_11times);
9159         ESTAT_ADD(tx_collide_12times);
9160         ESTAT_ADD(tx_collide_13times);
9161         ESTAT_ADD(tx_collide_14times);
9162         ESTAT_ADD(tx_collide_15times);
9163         ESTAT_ADD(tx_ucast_packets);
9164         ESTAT_ADD(tx_mcast_packets);
9165         ESTAT_ADD(tx_bcast_packets);
9166         ESTAT_ADD(tx_carrier_sense_errors);
9167         ESTAT_ADD(tx_discards);
9168         ESTAT_ADD(tx_errors);
9169
9170         ESTAT_ADD(dma_writeq_full);
9171         ESTAT_ADD(dma_write_prioq_full);
9172         ESTAT_ADD(rxbds_empty);
9173         ESTAT_ADD(rx_discards);
9174         ESTAT_ADD(rx_errors);
9175         ESTAT_ADD(rx_threshold_hit);
9176
9177         ESTAT_ADD(dma_readq_full);
9178         ESTAT_ADD(dma_read_prioq_full);
9179         ESTAT_ADD(tx_comp_queue_full);
9180
9181         ESTAT_ADD(ring_set_send_prod_index);
9182         ESTAT_ADD(ring_status_update);
9183         ESTAT_ADD(nic_irqs);
9184         ESTAT_ADD(nic_avoided_irqs);
9185         ESTAT_ADD(nic_tx_threshold_hit);
9186
9187         return estats;
9188 }
9189
9190 static struct net_device_stats *tg3_get_stats(struct net_device *dev)
9191 {
9192         struct tg3 *tp = netdev_priv(dev);
9193         struct net_device_stats *stats = &tp->net_stats;
9194         struct net_device_stats *old_stats = &tp->net_stats_prev;
9195         struct tg3_hw_stats *hw_stats = tp->hw_stats;
9196
9197         if (!hw_stats)
9198                 return old_stats;
9199
9200         stats->rx_packets = old_stats->rx_packets +
9201                 get_stat64(&hw_stats->rx_ucast_packets) +
9202                 get_stat64(&hw_stats->rx_mcast_packets) +
9203                 get_stat64(&hw_stats->rx_bcast_packets);
9204
9205         stats->tx_packets = old_stats->tx_packets +
9206                 get_stat64(&hw_stats->tx_ucast_packets) +
9207                 get_stat64(&hw_stats->tx_mcast_packets) +
9208                 get_stat64(&hw_stats->tx_bcast_packets);
9209
9210         stats->rx_bytes = old_stats->rx_bytes +
9211                 get_stat64(&hw_stats->rx_octets);
9212         stats->tx_bytes = old_stats->tx_bytes +
9213                 get_stat64(&hw_stats->tx_octets);
9214
9215         stats->rx_errors = old_stats->rx_errors +
9216                 get_stat64(&hw_stats->rx_errors);
9217         stats->tx_errors = old_stats->tx_errors +
9218                 get_stat64(&hw_stats->tx_errors) +
9219                 get_stat64(&hw_stats->tx_mac_errors) +
9220                 get_stat64(&hw_stats->tx_carrier_sense_errors) +
9221                 get_stat64(&hw_stats->tx_discards);
9222
9223         stats->multicast = old_stats->multicast +
9224                 get_stat64(&hw_stats->rx_mcast_packets);
9225         stats->collisions = old_stats->collisions +
9226                 get_stat64(&hw_stats->tx_collisions);
9227
9228         stats->rx_length_errors = old_stats->rx_length_errors +
9229                 get_stat64(&hw_stats->rx_frame_too_long_errors) +
9230                 get_stat64(&hw_stats->rx_undersize_packets);
9231
9232         stats->rx_over_errors = old_stats->rx_over_errors +
9233                 get_stat64(&hw_stats->rxbds_empty);
9234         stats->rx_frame_errors = old_stats->rx_frame_errors +
9235                 get_stat64(&hw_stats->rx_align_errors);
9236         stats->tx_aborted_errors = old_stats->tx_aborted_errors +
9237                 get_stat64(&hw_stats->tx_discards);
9238         stats->tx_carrier_errors = old_stats->tx_carrier_errors +
9239                 get_stat64(&hw_stats->tx_carrier_sense_errors);
9240
9241         stats->rx_crc_errors = old_stats->rx_crc_errors +
9242                 calc_crc_errors(tp);
9243
9244         stats->rx_missed_errors = old_stats->rx_missed_errors +
9245                 get_stat64(&hw_stats->rx_discards);
9246
9247         return stats;
9248 }
9249
9250 static inline u32 calc_crc(unsigned char *buf, int len)
9251 {
9252         u32 reg;
9253         u32 tmp;
9254         int j, k;
9255
9256         reg = 0xffffffff;
9257
9258         for (j = 0; j < len; j++) {
9259                 reg ^= buf[j];
9260
9261                 for (k = 0; k < 8; k++) {
9262                         tmp = reg & 0x01;
9263
9264                         reg >>= 1;
9265
9266                         if (tmp)
9267                                 reg ^= 0xedb88320;
9268                 }
9269         }
9270
9271         return ~reg;
9272 }
9273
9274 static void tg3_set_multi(struct tg3 *tp, unsigned int accept_all)
9275 {
9276         /* accept or reject all multicast frames */
9277         tw32(MAC_HASH_REG_0, accept_all ? 0xffffffff : 0);
9278         tw32(MAC_HASH_REG_1, accept_all ? 0xffffffff : 0);
9279         tw32(MAC_HASH_REG_2, accept_all ? 0xffffffff : 0);
9280         tw32(MAC_HASH_REG_3, accept_all ? 0xffffffff : 0);
9281 }
9282
9283 static void __tg3_set_rx_mode(struct net_device *dev)
9284 {
9285         struct tg3 *tp = netdev_priv(dev);
9286         u32 rx_mode;
9287
9288         rx_mode = tp->rx_mode & ~(RX_MODE_PROMISC |
9289                                   RX_MODE_KEEP_VLAN_TAG);
9290
9291         /* When ASF is in use, we always keep the RX_MODE_KEEP_VLAN_TAG
9292          * flag clear.
9293          */
9294 #if TG3_VLAN_TAG_USED
9295         if (!tp->vlgrp &&
9296             !(tp->tg3_flags & TG3_FLAG_ENABLE_ASF))
9297                 rx_mode |= RX_MODE_KEEP_VLAN_TAG;
9298 #else
9299         /* By definition, VLAN is disabled always in this
9300          * case.
9301          */
9302         if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF))
9303                 rx_mode |= RX_MODE_KEEP_VLAN_TAG;
9304 #endif
9305
9306         if (dev->flags & IFF_PROMISC) {
9307                 /* Promiscuous mode. */
9308                 rx_mode |= RX_MODE_PROMISC;
9309         } else if (dev->flags & IFF_ALLMULTI) {
9310                 /* Accept all multicast. */
9311                 tg3_set_multi(tp, 1);
9312         } else if (netdev_mc_empty(dev)) {
9313                 /* Reject all multicast. */
9314                 tg3_set_multi(tp, 0);
9315         } else {
9316                 /* Accept one or more multicast(s). */
9317                 struct netdev_hw_addr *ha;
9318                 u32 mc_filter[4] = { 0, };
9319                 u32 regidx;
9320                 u32 bit;
9321                 u32 crc;
9322
9323                 netdev_for_each_mc_addr(ha, dev) {
9324                         crc = calc_crc(ha->addr, ETH_ALEN);
9325                         bit = ~crc & 0x7f;
9326                         regidx = (bit & 0x60) >> 5;
9327                         bit &= 0x1f;
9328                         mc_filter[regidx] |= (1 << bit);
9329                 }
9330
9331                 tw32(MAC_HASH_REG_0, mc_filter[0]);
9332                 tw32(MAC_HASH_REG_1, mc_filter[1]);
9333                 tw32(MAC_HASH_REG_2, mc_filter[2]);
9334                 tw32(MAC_HASH_REG_3, mc_filter[3]);
9335         }
9336
9337         if (rx_mode != tp->rx_mode) {
9338                 tp->rx_mode = rx_mode;
9339                 tw32_f(MAC_RX_MODE, rx_mode);
9340                 udelay(10);
9341         }
9342 }
9343
9344 static void tg3_set_rx_mode(struct net_device *dev)
9345 {
9346         struct tg3 *tp = netdev_priv(dev);
9347
9348         if (!netif_running(dev))
9349                 return;
9350
9351         tg3_full_lock(tp, 0);
9352         __tg3_set_rx_mode(dev);
9353         tg3_full_unlock(tp);
9354 }
9355
9356 #define TG3_REGDUMP_LEN         (32 * 1024)
9357
9358 static int tg3_get_regs_len(struct net_device *dev)
9359 {
9360         return TG3_REGDUMP_LEN;
9361 }
9362
9363 static void tg3_get_regs(struct net_device *dev,
9364                 struct ethtool_regs *regs, void *_p)
9365 {
9366         u32 *p = _p;
9367         struct tg3 *tp = netdev_priv(dev);
9368         u8 *orig_p = _p;
9369         int i;
9370
9371         regs->version = 0;
9372
9373         memset(p, 0, TG3_REGDUMP_LEN);
9374
9375         if (tp->link_config.phy_is_low_power)
9376                 return;
9377
9378         tg3_full_lock(tp, 0);
9379
9380 #define __GET_REG32(reg)        (*(p)++ = tr32(reg))
9381 #define GET_REG32_LOOP(base,len)                \
9382 do {    p = (u32 *)(orig_p + (base));           \
9383         for (i = 0; i < len; i += 4)            \
9384                 __GET_REG32((base) + i);        \
9385 } while (0)
9386 #define GET_REG32_1(reg)                        \
9387 do {    p = (u32 *)(orig_p + (reg));            \
9388         __GET_REG32((reg));                     \
9389 } while (0)
9390
9391         GET_REG32_LOOP(TG3PCI_VENDOR, 0xb0);
9392         GET_REG32_LOOP(MAILBOX_INTERRUPT_0, 0x200);
9393         GET_REG32_LOOP(MAC_MODE, 0x4f0);
9394         GET_REG32_LOOP(SNDDATAI_MODE, 0xe0);
9395         GET_REG32_1(SNDDATAC_MODE);
9396         GET_REG32_LOOP(SNDBDS_MODE, 0x80);
9397         GET_REG32_LOOP(SNDBDI_MODE, 0x48);
9398         GET_REG32_1(SNDBDC_MODE);
9399         GET_REG32_LOOP(RCVLPC_MODE, 0x20);
9400         GET_REG32_LOOP(RCVLPC_SELLST_BASE, 0x15c);
9401         GET_REG32_LOOP(RCVDBDI_MODE, 0x0c);
9402         GET_REG32_LOOP(RCVDBDI_JUMBO_BD, 0x3c);
9403         GET_REG32_LOOP(RCVDBDI_BD_PROD_IDX_0, 0x44);
9404         GET_REG32_1(RCVDCC_MODE);
9405         GET_REG32_LOOP(RCVBDI_MODE, 0x20);
9406         GET_REG32_LOOP(RCVCC_MODE, 0x14);
9407         GET_REG32_LOOP(RCVLSC_MODE, 0x08);
9408         GET_REG32_1(MBFREE_MODE);
9409         GET_REG32_LOOP(HOSTCC_MODE, 0x100);
9410         GET_REG32_LOOP(MEMARB_MODE, 0x10);
9411         GET_REG32_LOOP(BUFMGR_MODE, 0x58);
9412         GET_REG32_LOOP(RDMAC_MODE, 0x08);
9413         GET_REG32_LOOP(WDMAC_MODE, 0x08);
9414         GET_REG32_1(RX_CPU_MODE);
9415         GET_REG32_1(RX_CPU_STATE);
9416         GET_REG32_1(RX_CPU_PGMCTR);
9417         GET_REG32_1(RX_CPU_HWBKPT);
9418         GET_REG32_1(TX_CPU_MODE);
9419         GET_REG32_1(TX_CPU_STATE);
9420         GET_REG32_1(TX_CPU_PGMCTR);
9421         GET_REG32_LOOP(GRCMBOX_INTERRUPT_0, 0x110);
9422         GET_REG32_LOOP(FTQ_RESET, 0x120);
9423         GET_REG32_LOOP(MSGINT_MODE, 0x0c);
9424         GET_REG32_1(DMAC_MODE);
9425         GET_REG32_LOOP(GRC_MODE, 0x4c);
9426         if (tp->tg3_flags & TG3_FLAG_NVRAM)
9427                 GET_REG32_LOOP(NVRAM_CMD, 0x24);
9428
9429 #undef __GET_REG32
9430 #undef GET_REG32_LOOP
9431 #undef GET_REG32_1
9432
9433         tg3_full_unlock(tp);
9434 }
9435
9436 static int tg3_get_eeprom_len(struct net_device *dev)
9437 {
9438         struct tg3 *tp = netdev_priv(dev);
9439
9440         return tp->nvram_size;
9441 }
9442
9443 static int tg3_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, u8 *data)
9444 {
9445         struct tg3 *tp = netdev_priv(dev);
9446         int ret;
9447         u8  *pd;
9448         u32 i, offset, len, b_offset, b_count;
9449         __be32 val;
9450
9451         if (tp->tg3_flags3 & TG3_FLG3_NO_NVRAM)
9452                 return -EINVAL;
9453
9454         if (tp->link_config.phy_is_low_power)
9455                 return -EAGAIN;
9456
9457         offset = eeprom->offset;
9458         len = eeprom->len;
9459         eeprom->len = 0;
9460
9461         eeprom->magic = TG3_EEPROM_MAGIC;
9462
9463         if (offset & 3) {
9464                 /* adjustments to start on required 4 byte boundary */
9465                 b_offset = offset & 3;
9466                 b_count = 4 - b_offset;
9467                 if (b_count > len) {
9468                         /* i.e. offset=1 len=2 */
9469                         b_count = len;
9470                 }
9471                 ret = tg3_nvram_read_be32(tp, offset-b_offset, &val);
9472                 if (ret)
9473                         return ret;
9474                 memcpy(data, ((char*)&val) + b_offset, b_count);
9475                 len -= b_count;
9476                 offset += b_count;
9477                 eeprom->len += b_count;
9478         }
9479
9480         /* read bytes upto the last 4 byte boundary */
9481         pd = &data[eeprom->len];
9482         for (i = 0; i < (len - (len & 3)); i += 4) {
9483                 ret = tg3_nvram_read_be32(tp, offset + i, &val);
9484                 if (ret) {
9485                         eeprom->len += i;
9486                         return ret;
9487                 }
9488                 memcpy(pd + i, &val, 4);
9489         }
9490         eeprom->len += i;
9491
9492         if (len & 3) {
9493                 /* read last bytes not ending on 4 byte boundary */
9494                 pd = &data[eeprom->len];
9495                 b_count = len & 3;
9496                 b_offset = offset + len - b_count;
9497                 ret = tg3_nvram_read_be32(tp, b_offset, &val);
9498                 if (ret)
9499                         return ret;
9500                 memcpy(pd, &val, b_count);
9501                 eeprom->len += b_count;
9502         }
9503         return 0;
9504 }
9505
9506 static int tg3_nvram_write_block(struct tg3 *tp, u32 offset, u32 len, u8 *buf);
9507
9508 static int tg3_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, u8 *data)
9509 {
9510         struct tg3 *tp = netdev_priv(dev);
9511         int ret;
9512         u32 offset, len, b_offset, odd_len;
9513         u8 *buf;
9514         __be32 start, end;
9515
9516         if (tp->link_config.phy_is_low_power)
9517                 return -EAGAIN;
9518
9519         if ((tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) ||
9520             eeprom->magic != TG3_EEPROM_MAGIC)
9521                 return -EINVAL;
9522
9523         offset = eeprom->offset;
9524         len = eeprom->len;
9525
9526         if ((b_offset = (offset & 3))) {
9527                 /* adjustments to start on required 4 byte boundary */
9528                 ret = tg3_nvram_read_be32(tp, offset-b_offset, &start);
9529                 if (ret)
9530                         return ret;
9531                 len += b_offset;
9532                 offset &= ~3;
9533                 if (len < 4)
9534                         len = 4;
9535         }
9536
9537         odd_len = 0;
9538         if (len & 3) {
9539                 /* adjustments to end on required 4 byte boundary */
9540                 odd_len = 1;
9541                 len = (len + 3) & ~3;
9542                 ret = tg3_nvram_read_be32(tp, offset+len-4, &end);
9543                 if (ret)
9544                         return ret;
9545         }
9546
9547         buf = data;
9548         if (b_offset || odd_len) {
9549                 buf = kmalloc(len, GFP_KERNEL);
9550                 if (!buf)
9551                         return -ENOMEM;
9552                 if (b_offset)
9553                         memcpy(buf, &start, 4);
9554                 if (odd_len)
9555                         memcpy(buf+len-4, &end, 4);
9556                 memcpy(buf + b_offset, data, eeprom->len);
9557         }
9558
9559         ret = tg3_nvram_write_block(tp, offset, len, buf);
9560
9561         if (buf != data)
9562                 kfree(buf);
9563
9564         return ret;
9565 }
9566
9567 static int tg3_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
9568 {
9569         struct tg3 *tp = netdev_priv(dev);
9570
9571         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
9572                 struct phy_device *phydev;
9573                 if (!(tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED))
9574                         return -EAGAIN;
9575                 phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
9576                 return phy_ethtool_gset(phydev, cmd);
9577         }
9578
9579         cmd->supported = (SUPPORTED_Autoneg);
9580
9581         if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY))
9582                 cmd->supported |= (SUPPORTED_1000baseT_Half |
9583                                    SUPPORTED_1000baseT_Full);
9584
9585         if (!(tp->tg3_flags2 & TG3_FLG2_ANY_SERDES)) {
9586                 cmd->supported |= (SUPPORTED_100baseT_Half |
9587                                   SUPPORTED_100baseT_Full |
9588                                   SUPPORTED_10baseT_Half |
9589                                   SUPPORTED_10baseT_Full |
9590                                   SUPPORTED_TP);
9591                 cmd->port = PORT_TP;
9592         } else {
9593                 cmd->supported |= SUPPORTED_FIBRE;
9594                 cmd->port = PORT_FIBRE;
9595         }
9596
9597         cmd->advertising = tp->link_config.advertising;
9598         if (netif_running(dev)) {
9599                 cmd->speed = tp->link_config.active_speed;
9600                 cmd->duplex = tp->link_config.active_duplex;
9601         }
9602         cmd->phy_address = tp->phy_addr;
9603         cmd->transceiver = XCVR_INTERNAL;
9604         cmd->autoneg = tp->link_config.autoneg;
9605         cmd->maxtxpkt = 0;
9606         cmd->maxrxpkt = 0;
9607         return 0;
9608 }
9609
9610 static int tg3_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
9611 {
9612         struct tg3 *tp = netdev_priv(dev);
9613
9614         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
9615                 struct phy_device *phydev;
9616                 if (!(tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED))
9617                         return -EAGAIN;
9618                 phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
9619                 return phy_ethtool_sset(phydev, cmd);
9620         }
9621
9622         if (cmd->autoneg != AUTONEG_ENABLE &&
9623             cmd->autoneg != AUTONEG_DISABLE)
9624                 return -EINVAL;
9625
9626         if (cmd->autoneg == AUTONEG_DISABLE &&
9627             cmd->duplex != DUPLEX_FULL &&
9628             cmd->duplex != DUPLEX_HALF)
9629                 return -EINVAL;
9630
9631         if (cmd->autoneg == AUTONEG_ENABLE) {
9632                 u32 mask = ADVERTISED_Autoneg |
9633                            ADVERTISED_Pause |
9634                            ADVERTISED_Asym_Pause;
9635
9636                 if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY))
9637                         mask |= ADVERTISED_1000baseT_Half |
9638                                 ADVERTISED_1000baseT_Full;
9639
9640                 if (!(tp->tg3_flags2 & TG3_FLG2_ANY_SERDES))
9641                         mask |= ADVERTISED_100baseT_Half |
9642                                 ADVERTISED_100baseT_Full |
9643                                 ADVERTISED_10baseT_Half |
9644                                 ADVERTISED_10baseT_Full |
9645                                 ADVERTISED_TP;
9646                 else
9647                         mask |= ADVERTISED_FIBRE;
9648
9649                 if (cmd->advertising & ~mask)
9650                         return -EINVAL;
9651
9652                 mask &= (ADVERTISED_1000baseT_Half |
9653                          ADVERTISED_1000baseT_Full |
9654                          ADVERTISED_100baseT_Half |
9655                          ADVERTISED_100baseT_Full |
9656                          ADVERTISED_10baseT_Half |
9657                          ADVERTISED_10baseT_Full);
9658
9659                 cmd->advertising &= mask;
9660         } else {
9661                 if (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES) {
9662                         if (cmd->speed != SPEED_1000)
9663                                 return -EINVAL;
9664
9665                         if (cmd->duplex != DUPLEX_FULL)
9666                                 return -EINVAL;
9667                 } else {
9668                         if (cmd->speed != SPEED_100 &&
9669                             cmd->speed != SPEED_10)
9670                                 return -EINVAL;
9671                 }
9672         }
9673
9674         tg3_full_lock(tp, 0);
9675
9676         tp->link_config.autoneg = cmd->autoneg;
9677         if (cmd->autoneg == AUTONEG_ENABLE) {
9678                 tp->link_config.advertising = (cmd->advertising |
9679                                               ADVERTISED_Autoneg);
9680                 tp->link_config.speed = SPEED_INVALID;
9681                 tp->link_config.duplex = DUPLEX_INVALID;
9682         } else {
9683                 tp->link_config.advertising = 0;
9684                 tp->link_config.speed = cmd->speed;
9685                 tp->link_config.duplex = cmd->duplex;
9686         }
9687
9688         tp->link_config.orig_speed = tp->link_config.speed;
9689         tp->link_config.orig_duplex = tp->link_config.duplex;
9690         tp->link_config.orig_autoneg = tp->link_config.autoneg;
9691
9692         if (netif_running(dev))
9693                 tg3_setup_phy(tp, 1);
9694
9695         tg3_full_unlock(tp);
9696
9697         return 0;
9698 }
9699
9700 static void tg3_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
9701 {
9702         struct tg3 *tp = netdev_priv(dev);
9703
9704         strcpy(info->driver, DRV_MODULE_NAME);
9705         strcpy(info->version, DRV_MODULE_VERSION);
9706         strcpy(info->fw_version, tp->fw_ver);
9707         strcpy(info->bus_info, pci_name(tp->pdev));
9708 }
9709
9710 static void tg3_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
9711 {
9712         struct tg3 *tp = netdev_priv(dev);
9713
9714         if ((tp->tg3_flags & TG3_FLAG_WOL_CAP) &&
9715             device_can_wakeup(&tp->pdev->dev))
9716                 wol->supported = WAKE_MAGIC;
9717         else
9718                 wol->supported = 0;
9719         wol->wolopts = 0;
9720         if ((tp->tg3_flags & TG3_FLAG_WOL_ENABLE) &&
9721             device_can_wakeup(&tp->pdev->dev))
9722                 wol->wolopts = WAKE_MAGIC;
9723         memset(&wol->sopass, 0, sizeof(wol->sopass));
9724 }
9725
9726 static int tg3_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
9727 {
9728         struct tg3 *tp = netdev_priv(dev);
9729         struct device *dp = &tp->pdev->dev;
9730
9731         if (wol->wolopts & ~WAKE_MAGIC)
9732                 return -EINVAL;
9733         if ((wol->wolopts & WAKE_MAGIC) &&
9734             !((tp->tg3_flags & TG3_FLAG_WOL_CAP) && device_can_wakeup(dp)))
9735                 return -EINVAL;
9736
9737         spin_lock_bh(&tp->lock);
9738         if (wol->wolopts & WAKE_MAGIC) {
9739                 tp->tg3_flags |= TG3_FLAG_WOL_ENABLE;
9740                 device_set_wakeup_enable(dp, true);
9741         } else {
9742                 tp->tg3_flags &= ~TG3_FLAG_WOL_ENABLE;
9743                 device_set_wakeup_enable(dp, false);
9744         }
9745         spin_unlock_bh(&tp->lock);
9746
9747         return 0;
9748 }
9749
9750 static u32 tg3_get_msglevel(struct net_device *dev)
9751 {
9752         struct tg3 *tp = netdev_priv(dev);
9753         return tp->msg_enable;
9754 }
9755
9756 static void tg3_set_msglevel(struct net_device *dev, u32 value)
9757 {
9758         struct tg3 *tp = netdev_priv(dev);
9759         tp->msg_enable = value;
9760 }
9761
9762 static int tg3_set_tso(struct net_device *dev, u32 value)
9763 {
9764         struct tg3 *tp = netdev_priv(dev);
9765
9766         if (!(tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE)) {
9767                 if (value)
9768                         return -EINVAL;
9769                 return 0;
9770         }
9771         if ((dev->features & NETIF_F_IPV6_CSUM) &&
9772             ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_2) ||
9773              (tp->tg3_flags2 & TG3_FLG2_HW_TSO_3))) {
9774                 if (value) {
9775                         dev->features |= NETIF_F_TSO6;
9776                         if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_3) ||
9777                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
9778                             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
9779                              GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) ||
9780                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
9781                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
9782                                 dev->features |= NETIF_F_TSO_ECN;
9783                 } else
9784                         dev->features &= ~(NETIF_F_TSO6 | NETIF_F_TSO_ECN);
9785         }
9786         return ethtool_op_set_tso(dev, value);
9787 }
9788
9789 static int tg3_nway_reset(struct net_device *dev)
9790 {
9791         struct tg3 *tp = netdev_priv(dev);
9792         int r;
9793
9794         if (!netif_running(dev))
9795                 return -EAGAIN;
9796
9797         if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)
9798                 return -EINVAL;
9799
9800         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
9801                 if (!(tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED))
9802                         return -EAGAIN;
9803                 r = phy_start_aneg(tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR]);
9804         } else {
9805                 u32 bmcr;
9806
9807                 spin_lock_bh(&tp->lock);
9808                 r = -EINVAL;
9809                 tg3_readphy(tp, MII_BMCR, &bmcr);
9810                 if (!tg3_readphy(tp, MII_BMCR, &bmcr) &&
9811                     ((bmcr & BMCR_ANENABLE) ||
9812                      (tp->tg3_flags2 & TG3_FLG2_PARALLEL_DETECT))) {
9813                         tg3_writephy(tp, MII_BMCR, bmcr | BMCR_ANRESTART |
9814                                                    BMCR_ANENABLE);
9815                         r = 0;
9816                 }
9817                 spin_unlock_bh(&tp->lock);
9818         }
9819
9820         return r;
9821 }
9822
9823 static void tg3_get_ringparam(struct net_device *dev, struct ethtool_ringparam *ering)
9824 {
9825         struct tg3 *tp = netdev_priv(dev);
9826
9827         ering->rx_max_pending = TG3_RX_RING_SIZE - 1;
9828         ering->rx_mini_max_pending = 0;
9829         if (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE)
9830                 ering->rx_jumbo_max_pending = TG3_RX_JUMBO_RING_SIZE - 1;
9831         else
9832                 ering->rx_jumbo_max_pending = 0;
9833
9834         ering->tx_max_pending = TG3_TX_RING_SIZE - 1;
9835
9836         ering->rx_pending = tp->rx_pending;
9837         ering->rx_mini_pending = 0;
9838         if (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE)
9839                 ering->rx_jumbo_pending = tp->rx_jumbo_pending;
9840         else
9841                 ering->rx_jumbo_pending = 0;
9842
9843         ering->tx_pending = tp->napi[0].tx_pending;
9844 }
9845
9846 static int tg3_set_ringparam(struct net_device *dev, struct ethtool_ringparam *ering)
9847 {
9848         struct tg3 *tp = netdev_priv(dev);
9849         int i, irq_sync = 0, err = 0;
9850
9851         if ((ering->rx_pending > TG3_RX_RING_SIZE - 1) ||
9852             (ering->rx_jumbo_pending > TG3_RX_JUMBO_RING_SIZE - 1) ||
9853             (ering->tx_pending > TG3_TX_RING_SIZE - 1) ||
9854             (ering->tx_pending <= MAX_SKB_FRAGS) ||
9855             ((tp->tg3_flags2 & TG3_FLG2_TSO_BUG) &&
9856              (ering->tx_pending <= (MAX_SKB_FRAGS * 3))))
9857                 return -EINVAL;
9858
9859         if (netif_running(dev)) {
9860                 tg3_phy_stop(tp);
9861                 tg3_netif_stop(tp);
9862                 irq_sync = 1;
9863         }
9864
9865         tg3_full_lock(tp, irq_sync);
9866
9867         tp->rx_pending = ering->rx_pending;
9868
9869         if ((tp->tg3_flags2 & TG3_FLG2_MAX_RXPEND_64) &&
9870             tp->rx_pending > 63)
9871                 tp->rx_pending = 63;
9872         tp->rx_jumbo_pending = ering->rx_jumbo_pending;
9873
9874         for (i = 0; i < TG3_IRQ_MAX_VECS; i++)
9875                 tp->napi[i].tx_pending = ering->tx_pending;
9876
9877         if (netif_running(dev)) {
9878                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
9879                 err = tg3_restart_hw(tp, 1);
9880                 if (!err)
9881                         tg3_netif_start(tp);
9882         }
9883
9884         tg3_full_unlock(tp);
9885
9886         if (irq_sync && !err)
9887                 tg3_phy_start(tp);
9888
9889         return err;
9890 }
9891
9892 static void tg3_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause)
9893 {
9894         struct tg3 *tp = netdev_priv(dev);
9895
9896         epause->autoneg = (tp->tg3_flags & TG3_FLAG_PAUSE_AUTONEG) != 0;
9897
9898         if (tp->link_config.active_flowctrl & FLOW_CTRL_RX)
9899                 epause->rx_pause = 1;
9900         else
9901                 epause->rx_pause = 0;
9902
9903         if (tp->link_config.active_flowctrl & FLOW_CTRL_TX)
9904                 epause->tx_pause = 1;
9905         else
9906                 epause->tx_pause = 0;
9907 }
9908
9909 static int tg3_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause)
9910 {
9911         struct tg3 *tp = netdev_priv(dev);
9912         int err = 0;
9913
9914         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
9915                 u32 newadv;
9916                 struct phy_device *phydev;
9917
9918                 phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
9919
9920                 if (!(phydev->supported & SUPPORTED_Pause) ||
9921                     (!(phydev->supported & SUPPORTED_Asym_Pause) &&
9922                      ((epause->rx_pause && !epause->tx_pause) ||
9923                       (!epause->rx_pause && epause->tx_pause))))
9924                         return -EINVAL;
9925
9926                 tp->link_config.flowctrl = 0;
9927                 if (epause->rx_pause) {
9928                         tp->link_config.flowctrl |= FLOW_CTRL_RX;
9929
9930                         if (epause->tx_pause) {
9931                                 tp->link_config.flowctrl |= FLOW_CTRL_TX;
9932                                 newadv = ADVERTISED_Pause;
9933                         } else
9934                                 newadv = ADVERTISED_Pause |
9935                                          ADVERTISED_Asym_Pause;
9936                 } else if (epause->tx_pause) {
9937                         tp->link_config.flowctrl |= FLOW_CTRL_TX;
9938                         newadv = ADVERTISED_Asym_Pause;
9939                 } else
9940                         newadv = 0;
9941
9942                 if (epause->autoneg)
9943                         tp->tg3_flags |= TG3_FLAG_PAUSE_AUTONEG;
9944                 else
9945                         tp->tg3_flags &= ~TG3_FLAG_PAUSE_AUTONEG;
9946
9947                 if (tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED) {
9948                         u32 oldadv = phydev->advertising &
9949                                      (ADVERTISED_Pause | ADVERTISED_Asym_Pause);
9950                         if (oldadv != newadv) {
9951                                 phydev->advertising &=
9952                                         ~(ADVERTISED_Pause |
9953                                           ADVERTISED_Asym_Pause);
9954                                 phydev->advertising |= newadv;
9955                                 if (phydev->autoneg) {
9956                                         /*
9957                                          * Always renegotiate the link to
9958                                          * inform our link partner of our
9959                                          * flow control settings, even if the
9960                                          * flow control is forced.  Let
9961                                          * tg3_adjust_link() do the final
9962                                          * flow control setup.
9963                                          */
9964                                         return phy_start_aneg(phydev);
9965                                 }
9966                         }
9967
9968                         if (!epause->autoneg)
9969                                 tg3_setup_flow_control(tp, 0, 0);
9970                 } else {
9971                         tp->link_config.orig_advertising &=
9972                                         ~(ADVERTISED_Pause |
9973                                           ADVERTISED_Asym_Pause);
9974                         tp->link_config.orig_advertising |= newadv;
9975                 }
9976         } else {
9977                 int irq_sync = 0;
9978
9979                 if (netif_running(dev)) {
9980                         tg3_netif_stop(tp);
9981                         irq_sync = 1;
9982                 }
9983
9984                 tg3_full_lock(tp, irq_sync);
9985
9986                 if (epause->autoneg)
9987                         tp->tg3_flags |= TG3_FLAG_PAUSE_AUTONEG;
9988                 else
9989                         tp->tg3_flags &= ~TG3_FLAG_PAUSE_AUTONEG;
9990                 if (epause->rx_pause)
9991                         tp->link_config.flowctrl |= FLOW_CTRL_RX;
9992                 else
9993                         tp->link_config.flowctrl &= ~FLOW_CTRL_RX;
9994                 if (epause->tx_pause)
9995                         tp->link_config.flowctrl |= FLOW_CTRL_TX;
9996                 else
9997                         tp->link_config.flowctrl &= ~FLOW_CTRL_TX;
9998
9999                 if (netif_running(dev)) {
10000                         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
10001                         err = tg3_restart_hw(tp, 1);
10002                         if (!err)
10003                                 tg3_netif_start(tp);
10004                 }
10005
10006                 tg3_full_unlock(tp);
10007         }
10008
10009         return err;
10010 }
10011
10012 static u32 tg3_get_rx_csum(struct net_device *dev)
10013 {
10014         struct tg3 *tp = netdev_priv(dev);
10015         return (tp->tg3_flags & TG3_FLAG_RX_CHECKSUMS) != 0;
10016 }
10017
10018 static int tg3_set_rx_csum(struct net_device *dev, u32 data)
10019 {
10020         struct tg3 *tp = netdev_priv(dev);
10021
10022         if (tp->tg3_flags & TG3_FLAG_BROKEN_CHECKSUMS) {
10023                 if (data != 0)
10024                         return -EINVAL;
10025                 return 0;
10026         }
10027
10028         spin_lock_bh(&tp->lock);
10029         if (data)
10030                 tp->tg3_flags |= TG3_FLAG_RX_CHECKSUMS;
10031         else
10032                 tp->tg3_flags &= ~TG3_FLAG_RX_CHECKSUMS;
10033         spin_unlock_bh(&tp->lock);
10034
10035         return 0;
10036 }
10037
10038 static int tg3_set_tx_csum(struct net_device *dev, u32 data)
10039 {
10040         struct tg3 *tp = netdev_priv(dev);
10041
10042         if (tp->tg3_flags & TG3_FLAG_BROKEN_CHECKSUMS) {
10043                 if (data != 0)
10044                         return -EINVAL;
10045                 return 0;
10046         }
10047
10048         if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
10049                 ethtool_op_set_tx_ipv6_csum(dev, data);
10050         else
10051                 ethtool_op_set_tx_csum(dev, data);
10052
10053         return 0;
10054 }
10055
10056 static int tg3_get_sset_count(struct net_device *dev, int sset)
10057 {
10058         switch (sset) {
10059         case ETH_SS_TEST:
10060                 return TG3_NUM_TEST;
10061         case ETH_SS_STATS:
10062                 return TG3_NUM_STATS;
10063         default:
10064                 return -EOPNOTSUPP;
10065         }
10066 }
10067
10068 static void tg3_get_strings(struct net_device *dev, u32 stringset, u8 *buf)
10069 {
10070         switch (stringset) {
10071         case ETH_SS_STATS:
10072                 memcpy(buf, &ethtool_stats_keys, sizeof(ethtool_stats_keys));
10073                 break;
10074         case ETH_SS_TEST:
10075                 memcpy(buf, &ethtool_test_keys, sizeof(ethtool_test_keys));
10076                 break;
10077         default:
10078                 WARN_ON(1);     /* we need a WARN() */
10079                 break;
10080         }
10081 }
10082
10083 static int tg3_phys_id(struct net_device *dev, u32 data)
10084 {
10085         struct tg3 *tp = netdev_priv(dev);
10086         int i;
10087
10088         if (!netif_running(tp->dev))
10089                 return -EAGAIN;
10090
10091         if (data == 0)
10092                 data = UINT_MAX / 2;
10093
10094         for (i = 0; i < (data * 2); i++) {
10095                 if ((i % 2) == 0)
10096                         tw32(MAC_LED_CTRL, LED_CTRL_LNKLED_OVERRIDE |
10097                                            LED_CTRL_1000MBPS_ON |
10098                                            LED_CTRL_100MBPS_ON |
10099                                            LED_CTRL_10MBPS_ON |
10100                                            LED_CTRL_TRAFFIC_OVERRIDE |
10101                                            LED_CTRL_TRAFFIC_BLINK |
10102                                            LED_CTRL_TRAFFIC_LED);
10103
10104                 else
10105                         tw32(MAC_LED_CTRL, LED_CTRL_LNKLED_OVERRIDE |
10106                                            LED_CTRL_TRAFFIC_OVERRIDE);
10107
10108                 if (msleep_interruptible(500))
10109                         break;
10110         }
10111         tw32(MAC_LED_CTRL, tp->led_ctrl);
10112         return 0;
10113 }
10114
10115 static void tg3_get_ethtool_stats(struct net_device *dev,
10116                                    struct ethtool_stats *estats, u64 *tmp_stats)
10117 {
10118         struct tg3 *tp = netdev_priv(dev);
10119         memcpy(tmp_stats, tg3_get_estats(tp), sizeof(tp->estats));
10120 }
10121
10122 #define NVRAM_TEST_SIZE 0x100
10123 #define NVRAM_SELFBOOT_FORMAT1_0_SIZE   0x14
10124 #define NVRAM_SELFBOOT_FORMAT1_2_SIZE   0x18
10125 #define NVRAM_SELFBOOT_FORMAT1_3_SIZE   0x1c
10126 #define NVRAM_SELFBOOT_HW_SIZE 0x20
10127 #define NVRAM_SELFBOOT_DATA_SIZE 0x1c
10128
10129 static int tg3_test_nvram(struct tg3 *tp)
10130 {
10131         u32 csum, magic;
10132         __be32 *buf;
10133         int i, j, k, err = 0, size;
10134
10135         if (tp->tg3_flags3 & TG3_FLG3_NO_NVRAM)
10136                 return 0;
10137
10138         if (tg3_nvram_read(tp, 0, &magic) != 0)
10139                 return -EIO;
10140
10141         if (magic == TG3_EEPROM_MAGIC)
10142                 size = NVRAM_TEST_SIZE;
10143         else if ((magic & TG3_EEPROM_MAGIC_FW_MSK) == TG3_EEPROM_MAGIC_FW) {
10144                 if ((magic & TG3_EEPROM_SB_FORMAT_MASK) ==
10145                     TG3_EEPROM_SB_FORMAT_1) {
10146                         switch (magic & TG3_EEPROM_SB_REVISION_MASK) {
10147                         case TG3_EEPROM_SB_REVISION_0:
10148                                 size = NVRAM_SELFBOOT_FORMAT1_0_SIZE;
10149                                 break;
10150                         case TG3_EEPROM_SB_REVISION_2:
10151                                 size = NVRAM_SELFBOOT_FORMAT1_2_SIZE;
10152                                 break;
10153                         case TG3_EEPROM_SB_REVISION_3:
10154                                 size = NVRAM_SELFBOOT_FORMAT1_3_SIZE;
10155                                 break;
10156                         default:
10157                                 return 0;
10158                         }
10159                 } else
10160                         return 0;
10161         } else if ((magic & TG3_EEPROM_MAGIC_HW_MSK) == TG3_EEPROM_MAGIC_HW)
10162                 size = NVRAM_SELFBOOT_HW_SIZE;
10163         else
10164                 return -EIO;
10165
10166         buf = kmalloc(size, GFP_KERNEL);
10167         if (buf == NULL)
10168                 return -ENOMEM;
10169
10170         err = -EIO;
10171         for (i = 0, j = 0; i < size; i += 4, j++) {
10172                 err = tg3_nvram_read_be32(tp, i, &buf[j]);
10173                 if (err)
10174                         break;
10175         }
10176         if (i < size)
10177                 goto out;
10178
10179         /* Selfboot format */
10180         magic = be32_to_cpu(buf[0]);
10181         if ((magic & TG3_EEPROM_MAGIC_FW_MSK) ==
10182             TG3_EEPROM_MAGIC_FW) {
10183                 u8 *buf8 = (u8 *) buf, csum8 = 0;
10184
10185                 if ((magic & TG3_EEPROM_SB_REVISION_MASK) ==
10186                     TG3_EEPROM_SB_REVISION_2) {
10187                         /* For rev 2, the csum doesn't include the MBA. */
10188                         for (i = 0; i < TG3_EEPROM_SB_F1R2_MBA_OFF; i++)
10189                                 csum8 += buf8[i];
10190                         for (i = TG3_EEPROM_SB_F1R2_MBA_OFF + 4; i < size; i++)
10191                                 csum8 += buf8[i];
10192                 } else {
10193                         for (i = 0; i < size; i++)
10194                                 csum8 += buf8[i];
10195                 }
10196
10197                 if (csum8 == 0) {
10198                         err = 0;
10199                         goto out;
10200                 }
10201
10202                 err = -EIO;
10203                 goto out;
10204         }
10205
10206         if ((magic & TG3_EEPROM_MAGIC_HW_MSK) ==
10207             TG3_EEPROM_MAGIC_HW) {
10208                 u8 data[NVRAM_SELFBOOT_DATA_SIZE];
10209                 u8 parity[NVRAM_SELFBOOT_DATA_SIZE];
10210                 u8 *buf8 = (u8 *) buf;
10211
10212                 /* Separate the parity bits and the data bytes.  */
10213                 for (i = 0, j = 0, k = 0; i < NVRAM_SELFBOOT_HW_SIZE; i++) {
10214                         if ((i == 0) || (i == 8)) {
10215                                 int l;
10216                                 u8 msk;
10217
10218                                 for (l = 0, msk = 0x80; l < 7; l++, msk >>= 1)
10219                                         parity[k++] = buf8[i] & msk;
10220                                 i++;
10221                         } else if (i == 16) {
10222                                 int l;
10223                                 u8 msk;
10224
10225                                 for (l = 0, msk = 0x20; l < 6; l++, msk >>= 1)
10226                                         parity[k++] = buf8[i] & msk;
10227                                 i++;
10228
10229                                 for (l = 0, msk = 0x80; l < 8; l++, msk >>= 1)
10230                                         parity[k++] = buf8[i] & msk;
10231                                 i++;
10232                         }
10233                         data[j++] = buf8[i];
10234                 }
10235
10236                 err = -EIO;
10237                 for (i = 0; i < NVRAM_SELFBOOT_DATA_SIZE; i++) {
10238                         u8 hw8 = hweight8(data[i]);
10239
10240                         if ((hw8 & 0x1) && parity[i])
10241                                 goto out;
10242                         else if (!(hw8 & 0x1) && !parity[i])
10243                                 goto out;
10244                 }
10245                 err = 0;
10246                 goto out;
10247         }
10248
10249         /* Bootstrap checksum at offset 0x10 */
10250         csum = calc_crc((unsigned char *) buf, 0x10);
10251         if (csum != be32_to_cpu(buf[0x10/4]))
10252                 goto out;
10253
10254         /* Manufacturing block starts at offset 0x74, checksum at 0xfc */
10255         csum = calc_crc((unsigned char *) &buf[0x74/4], 0x88);
10256         if (csum != be32_to_cpu(buf[0xfc/4]))
10257                 goto out;
10258
10259         err = 0;
10260
10261 out:
10262         kfree(buf);
10263         return err;
10264 }
10265
10266 #define TG3_SERDES_TIMEOUT_SEC  2
10267 #define TG3_COPPER_TIMEOUT_SEC  6
10268
10269 static int tg3_test_link(struct tg3 *tp)
10270 {
10271         int i, max;
10272
10273         if (!netif_running(tp->dev))
10274                 return -ENODEV;
10275
10276         if (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES)
10277                 max = TG3_SERDES_TIMEOUT_SEC;
10278         else
10279                 max = TG3_COPPER_TIMEOUT_SEC;
10280
10281         for (i = 0; i < max; i++) {
10282                 if (netif_carrier_ok(tp->dev))
10283                         return 0;
10284
10285                 if (msleep_interruptible(1000))
10286                         break;
10287         }
10288
10289         return -EIO;
10290 }
10291
10292 /* Only test the commonly used registers */
10293 static int tg3_test_registers(struct tg3 *tp)
10294 {
10295         int i, is_5705, is_5750;
10296         u32 offset, read_mask, write_mask, val, save_val, read_val;
10297         static struct {
10298                 u16 offset;
10299                 u16 flags;
10300 #define TG3_FL_5705     0x1
10301 #define TG3_FL_NOT_5705 0x2
10302 #define TG3_FL_NOT_5788 0x4
10303 #define TG3_FL_NOT_5750 0x8
10304                 u32 read_mask;
10305                 u32 write_mask;
10306         } reg_tbl[] = {
10307                 /* MAC Control Registers */
10308                 { MAC_MODE, TG3_FL_NOT_5705,
10309                         0x00000000, 0x00ef6f8c },
10310                 { MAC_MODE, TG3_FL_5705,
10311                         0x00000000, 0x01ef6b8c },
10312                 { MAC_STATUS, TG3_FL_NOT_5705,
10313                         0x03800107, 0x00000000 },
10314                 { MAC_STATUS, TG3_FL_5705,
10315                         0x03800100, 0x00000000 },
10316                 { MAC_ADDR_0_HIGH, 0x0000,
10317                         0x00000000, 0x0000ffff },
10318                 { MAC_ADDR_0_LOW, 0x0000,
10319                         0x00000000, 0xffffffff },
10320                 { MAC_RX_MTU_SIZE, 0x0000,
10321                         0x00000000, 0x0000ffff },
10322                 { MAC_TX_MODE, 0x0000,
10323                         0x00000000, 0x00000070 },
10324                 { MAC_TX_LENGTHS, 0x0000,
10325                         0x00000000, 0x00003fff },
10326                 { MAC_RX_MODE, TG3_FL_NOT_5705,
10327                         0x00000000, 0x000007fc },
10328                 { MAC_RX_MODE, TG3_FL_5705,
10329                         0x00000000, 0x000007dc },
10330                 { MAC_HASH_REG_0, 0x0000,
10331                         0x00000000, 0xffffffff },
10332                 { MAC_HASH_REG_1, 0x0000,
10333                         0x00000000, 0xffffffff },
10334                 { MAC_HASH_REG_2, 0x0000,
10335                         0x00000000, 0xffffffff },
10336                 { MAC_HASH_REG_3, 0x0000,
10337                         0x00000000, 0xffffffff },
10338
10339                 /* Receive Data and Receive BD Initiator Control Registers. */
10340                 { RCVDBDI_JUMBO_BD+0, TG3_FL_NOT_5705,
10341                         0x00000000, 0xffffffff },
10342                 { RCVDBDI_JUMBO_BD+4, TG3_FL_NOT_5705,
10343                         0x00000000, 0xffffffff },
10344                 { RCVDBDI_JUMBO_BD+8, TG3_FL_NOT_5705,
10345                         0x00000000, 0x00000003 },
10346                 { RCVDBDI_JUMBO_BD+0xc, TG3_FL_NOT_5705,
10347                         0x00000000, 0xffffffff },
10348                 { RCVDBDI_STD_BD+0, 0x0000,
10349                         0x00000000, 0xffffffff },
10350                 { RCVDBDI_STD_BD+4, 0x0000,
10351                         0x00000000, 0xffffffff },
10352                 { RCVDBDI_STD_BD+8, 0x0000,
10353                         0x00000000, 0xffff0002 },
10354                 { RCVDBDI_STD_BD+0xc, 0x0000,
10355                         0x00000000, 0xffffffff },
10356
10357                 /* Receive BD Initiator Control Registers. */
10358                 { RCVBDI_STD_THRESH, TG3_FL_NOT_5705,
10359                         0x00000000, 0xffffffff },
10360                 { RCVBDI_STD_THRESH, TG3_FL_5705,
10361                         0x00000000, 0x000003ff },
10362                 { RCVBDI_JUMBO_THRESH, TG3_FL_NOT_5705,
10363                         0x00000000, 0xffffffff },
10364
10365                 /* Host Coalescing Control Registers. */
10366                 { HOSTCC_MODE, TG3_FL_NOT_5705,
10367                         0x00000000, 0x00000004 },
10368                 { HOSTCC_MODE, TG3_FL_5705,
10369                         0x00000000, 0x000000f6 },
10370                 { HOSTCC_RXCOL_TICKS, TG3_FL_NOT_5705,
10371                         0x00000000, 0xffffffff },
10372                 { HOSTCC_RXCOL_TICKS, TG3_FL_5705,
10373                         0x00000000, 0x000003ff },
10374                 { HOSTCC_TXCOL_TICKS, TG3_FL_NOT_5705,
10375                         0x00000000, 0xffffffff },
10376                 { HOSTCC_TXCOL_TICKS, TG3_FL_5705,
10377                         0x00000000, 0x000003ff },
10378                 { HOSTCC_RXMAX_FRAMES, TG3_FL_NOT_5705,
10379                         0x00000000, 0xffffffff },
10380                 { HOSTCC_RXMAX_FRAMES, TG3_FL_5705 | TG3_FL_NOT_5788,
10381                         0x00000000, 0x000000ff },
10382                 { HOSTCC_TXMAX_FRAMES, TG3_FL_NOT_5705,
10383                         0x00000000, 0xffffffff },
10384                 { HOSTCC_TXMAX_FRAMES, TG3_FL_5705 | TG3_FL_NOT_5788,
10385                         0x00000000, 0x000000ff },
10386                 { HOSTCC_RXCOAL_TICK_INT, TG3_FL_NOT_5705,
10387                         0x00000000, 0xffffffff },
10388                 { HOSTCC_TXCOAL_TICK_INT, TG3_FL_NOT_5705,
10389                         0x00000000, 0xffffffff },
10390                 { HOSTCC_RXCOAL_MAXF_INT, TG3_FL_NOT_5705,
10391                         0x00000000, 0xffffffff },
10392                 { HOSTCC_RXCOAL_MAXF_INT, TG3_FL_5705 | TG3_FL_NOT_5788,
10393                         0x00000000, 0x000000ff },
10394                 { HOSTCC_TXCOAL_MAXF_INT, TG3_FL_NOT_5705,
10395                         0x00000000, 0xffffffff },
10396                 { HOSTCC_TXCOAL_MAXF_INT, TG3_FL_5705 | TG3_FL_NOT_5788,
10397                         0x00000000, 0x000000ff },
10398                 { HOSTCC_STAT_COAL_TICKS, TG3_FL_NOT_5705,
10399                         0x00000000, 0xffffffff },
10400                 { HOSTCC_STATS_BLK_HOST_ADDR, TG3_FL_NOT_5705,
10401                         0x00000000, 0xffffffff },
10402                 { HOSTCC_STATS_BLK_HOST_ADDR+4, TG3_FL_NOT_5705,
10403                         0x00000000, 0xffffffff },
10404                 { HOSTCC_STATUS_BLK_HOST_ADDR, 0x0000,
10405                         0x00000000, 0xffffffff },
10406                 { HOSTCC_STATUS_BLK_HOST_ADDR+4, 0x0000,
10407                         0x00000000, 0xffffffff },
10408                 { HOSTCC_STATS_BLK_NIC_ADDR, 0x0000,
10409                         0xffffffff, 0x00000000 },
10410                 { HOSTCC_STATUS_BLK_NIC_ADDR, 0x0000,
10411                         0xffffffff, 0x00000000 },
10412
10413                 /* Buffer Manager Control Registers. */
10414                 { BUFMGR_MB_POOL_ADDR, TG3_FL_NOT_5750,
10415                         0x00000000, 0x007fff80 },
10416                 { BUFMGR_MB_POOL_SIZE, TG3_FL_NOT_5750,
10417                         0x00000000, 0x007fffff },
10418                 { BUFMGR_MB_RDMA_LOW_WATER, 0x0000,
10419                         0x00000000, 0x0000003f },
10420                 { BUFMGR_MB_MACRX_LOW_WATER, 0x0000,
10421                         0x00000000, 0x000001ff },
10422                 { BUFMGR_MB_HIGH_WATER, 0x0000,
10423                         0x00000000, 0x000001ff },
10424                 { BUFMGR_DMA_DESC_POOL_ADDR, TG3_FL_NOT_5705,
10425                         0xffffffff, 0x00000000 },
10426                 { BUFMGR_DMA_DESC_POOL_SIZE, TG3_FL_NOT_5705,
10427                         0xffffffff, 0x00000000 },
10428
10429                 /* Mailbox Registers */
10430                 { GRCMBOX_RCVSTD_PROD_IDX+4, 0x0000,
10431                         0x00000000, 0x000001ff },
10432                 { GRCMBOX_RCVJUMBO_PROD_IDX+4, TG3_FL_NOT_5705,
10433                         0x00000000, 0x000001ff },
10434                 { GRCMBOX_RCVRET_CON_IDX_0+4, 0x0000,
10435                         0x00000000, 0x000007ff },
10436                 { GRCMBOX_SNDHOST_PROD_IDX_0+4, 0x0000,
10437                         0x00000000, 0x000001ff },
10438
10439                 { 0xffff, 0x0000, 0x00000000, 0x00000000 },
10440         };
10441
10442         is_5705 = is_5750 = 0;
10443         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
10444                 is_5705 = 1;
10445                 if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS)
10446                         is_5750 = 1;
10447         }
10448
10449         for (i = 0; reg_tbl[i].offset != 0xffff; i++) {
10450                 if (is_5705 && (reg_tbl[i].flags & TG3_FL_NOT_5705))
10451                         continue;
10452
10453                 if (!is_5705 && (reg_tbl[i].flags & TG3_FL_5705))
10454                         continue;
10455
10456                 if ((tp->tg3_flags2 & TG3_FLG2_IS_5788) &&
10457                     (reg_tbl[i].flags & TG3_FL_NOT_5788))
10458                         continue;
10459
10460                 if (is_5750 && (reg_tbl[i].flags & TG3_FL_NOT_5750))
10461                         continue;
10462
10463                 offset = (u32) reg_tbl[i].offset;
10464                 read_mask = reg_tbl[i].read_mask;
10465                 write_mask = reg_tbl[i].write_mask;
10466
10467                 /* Save the original register content */
10468                 save_val = tr32(offset);
10469
10470                 /* Determine the read-only value. */
10471                 read_val = save_val & read_mask;
10472
10473                 /* Write zero to the register, then make sure the read-only bits
10474                  * are not changed and the read/write bits are all zeros.
10475                  */
10476                 tw32(offset, 0);
10477
10478                 val = tr32(offset);
10479
10480                 /* Test the read-only and read/write bits. */
10481                 if (((val & read_mask) != read_val) || (val & write_mask))
10482                         goto out;
10483
10484                 /* Write ones to all the bits defined by RdMask and WrMask, then
10485                  * make sure the read-only bits are not changed and the
10486                  * read/write bits are all ones.
10487                  */
10488                 tw32(offset, read_mask | write_mask);
10489
10490                 val = tr32(offset);
10491
10492                 /* Test the read-only bits. */
10493                 if ((val & read_mask) != read_val)
10494                         goto out;
10495
10496                 /* Test the read/write bits. */
10497                 if ((val & write_mask) != write_mask)
10498                         goto out;
10499
10500                 tw32(offset, save_val);
10501         }
10502
10503         return 0;
10504
10505 out:
10506         if (netif_msg_hw(tp))
10507                 netdev_err(tp->dev,
10508                            "Register test failed at offset %x\n", offset);
10509         tw32(offset, save_val);
10510         return -EIO;
10511 }
10512
10513 static int tg3_do_mem_test(struct tg3 *tp, u32 offset, u32 len)
10514 {
10515         static const u32 test_pattern[] = { 0x00000000, 0xffffffff, 0xaa55a55a };
10516         int i;
10517         u32 j;
10518
10519         for (i = 0; i < ARRAY_SIZE(test_pattern); i++) {
10520                 for (j = 0; j < len; j += 4) {
10521                         u32 val;
10522
10523                         tg3_write_mem(tp, offset + j, test_pattern[i]);
10524                         tg3_read_mem(tp, offset + j, &val);
10525                         if (val != test_pattern[i])
10526                                 return -EIO;
10527                 }
10528         }
10529         return 0;
10530 }
10531
10532 static int tg3_test_memory(struct tg3 *tp)
10533 {
10534         static struct mem_entry {
10535                 u32 offset;
10536                 u32 len;
10537         } mem_tbl_570x[] = {
10538                 { 0x00000000, 0x00b50},
10539                 { 0x00002000, 0x1c000},
10540                 { 0xffffffff, 0x00000}
10541         }, mem_tbl_5705[] = {
10542                 { 0x00000100, 0x0000c},
10543                 { 0x00000200, 0x00008},
10544                 { 0x00004000, 0x00800},
10545                 { 0x00006000, 0x01000},
10546                 { 0x00008000, 0x02000},
10547                 { 0x00010000, 0x0e000},
10548                 { 0xffffffff, 0x00000}
10549         }, mem_tbl_5755[] = {
10550                 { 0x00000200, 0x00008},
10551                 { 0x00004000, 0x00800},
10552                 { 0x00006000, 0x00800},
10553                 { 0x00008000, 0x02000},
10554                 { 0x00010000, 0x0c000},
10555                 { 0xffffffff, 0x00000}
10556         }, mem_tbl_5906[] = {
10557                 { 0x00000200, 0x00008},
10558                 { 0x00004000, 0x00400},
10559                 { 0x00006000, 0x00400},
10560                 { 0x00008000, 0x01000},
10561                 { 0x00010000, 0x01000},
10562                 { 0xffffffff, 0x00000}
10563         }, mem_tbl_5717[] = {
10564                 { 0x00000200, 0x00008},
10565                 { 0x00010000, 0x0a000},
10566                 { 0x00020000, 0x13c00},
10567                 { 0xffffffff, 0x00000}
10568         }, mem_tbl_57765[] = {
10569                 { 0x00000200, 0x00008},
10570                 { 0x00004000, 0x00800},
10571                 { 0x00006000, 0x09800},
10572                 { 0x00010000, 0x0a000},
10573                 { 0xffffffff, 0x00000}
10574         };
10575         struct mem_entry *mem_tbl;
10576         int err = 0;
10577         int i;
10578
10579         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717)
10580                 mem_tbl = mem_tbl_5717;
10581         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
10582                 mem_tbl = mem_tbl_57765;
10583         else if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
10584                 mem_tbl = mem_tbl_5755;
10585         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
10586                 mem_tbl = mem_tbl_5906;
10587         else if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS)
10588                 mem_tbl = mem_tbl_5705;
10589         else
10590                 mem_tbl = mem_tbl_570x;
10591
10592         for (i = 0; mem_tbl[i].offset != 0xffffffff; i++) {
10593                 if ((err = tg3_do_mem_test(tp, mem_tbl[i].offset,
10594                     mem_tbl[i].len)) != 0)
10595                         break;
10596         }
10597
10598         return err;
10599 }
10600
10601 #define TG3_MAC_LOOPBACK        0
10602 #define TG3_PHY_LOOPBACK        1
10603
10604 static int tg3_run_loopback(struct tg3 *tp, int loopback_mode)
10605 {
10606         u32 mac_mode, rx_start_idx, rx_idx, tx_idx, opaque_key;
10607         u32 desc_idx, coal_now;
10608         struct sk_buff *skb, *rx_skb;
10609         u8 *tx_data;
10610         dma_addr_t map;
10611         int num_pkts, tx_len, rx_len, i, err;
10612         struct tg3_rx_buffer_desc *desc;
10613         struct tg3_napi *tnapi, *rnapi;
10614         struct tg3_rx_prodring_set *tpr = &tp->prodring[0];
10615
10616         tnapi = &tp->napi[0];
10617         rnapi = &tp->napi[0];
10618         if (tp->irq_cnt > 1) {
10619                 rnapi = &tp->napi[1];
10620                 if (tp->tg3_flags3 & TG3_FLG3_ENABLE_TSS)
10621                         tnapi = &tp->napi[1];
10622         }
10623         coal_now = tnapi->coal_now | rnapi->coal_now;
10624
10625         if (loopback_mode == TG3_MAC_LOOPBACK) {
10626                 /* HW errata - mac loopback fails in some cases on 5780.
10627                  * Normal traffic and PHY loopback are not affected by
10628                  * errata.
10629                  */
10630                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780)
10631                         return 0;
10632
10633                 mac_mode = (tp->mac_mode & ~MAC_MODE_PORT_MODE_MASK) |
10634                            MAC_MODE_PORT_INT_LPBACK;
10635                 if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
10636                         mac_mode |= MAC_MODE_LINK_POLARITY;
10637                 if (tp->tg3_flags & TG3_FLAG_10_100_ONLY)
10638                         mac_mode |= MAC_MODE_PORT_MODE_MII;
10639                 else
10640                         mac_mode |= MAC_MODE_PORT_MODE_GMII;
10641                 tw32(MAC_MODE, mac_mode);
10642         } else if (loopback_mode == TG3_PHY_LOOPBACK) {
10643                 u32 val;
10644
10645                 if (tp->tg3_flags3 & TG3_FLG3_PHY_IS_FET) {
10646                         tg3_phy_fet_toggle_apd(tp, false);
10647                         val = BMCR_LOOPBACK | BMCR_FULLDPLX | BMCR_SPEED100;
10648                 } else
10649                         val = BMCR_LOOPBACK | BMCR_FULLDPLX | BMCR_SPEED1000;
10650
10651                 tg3_phy_toggle_automdix(tp, 0);
10652
10653                 tg3_writephy(tp, MII_BMCR, val);
10654                 udelay(40);
10655
10656                 mac_mode = tp->mac_mode & ~MAC_MODE_PORT_MODE_MASK;
10657                 if (tp->tg3_flags3 & TG3_FLG3_PHY_IS_FET) {
10658                         tg3_writephy(tp, MII_TG3_FET_PTEST,
10659                                      MII_TG3_FET_PTEST_FRC_TX_LINK |
10660                                      MII_TG3_FET_PTEST_FRC_TX_LOCK);
10661                         /* The write needs to be flushed for the AC131 */
10662                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
10663                                 tg3_readphy(tp, MII_TG3_FET_PTEST, &val);
10664                         mac_mode |= MAC_MODE_PORT_MODE_MII;
10665                 } else
10666                         mac_mode |= MAC_MODE_PORT_MODE_GMII;
10667
10668                 /* reset to prevent losing 1st rx packet intermittently */
10669                 if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES) {
10670                         tw32_f(MAC_RX_MODE, RX_MODE_RESET);
10671                         udelay(10);
10672                         tw32_f(MAC_RX_MODE, tp->rx_mode);
10673                 }
10674                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) {
10675                         u32 masked_phy_id = tp->phy_id & TG3_PHY_ID_MASK;
10676                         if (masked_phy_id == TG3_PHY_ID_BCM5401)
10677                                 mac_mode &= ~MAC_MODE_LINK_POLARITY;
10678                         else if (masked_phy_id == TG3_PHY_ID_BCM5411)
10679                                 mac_mode |= MAC_MODE_LINK_POLARITY;
10680                         tg3_writephy(tp, MII_TG3_EXT_CTRL,
10681                                      MII_TG3_EXT_CTRL_LNK3_LED_MODE);
10682                 }
10683                 tw32(MAC_MODE, mac_mode);
10684         } else {
10685                 return -EINVAL;
10686         }
10687
10688         err = -EIO;
10689
10690         tx_len = 1514;
10691         skb = netdev_alloc_skb(tp->dev, tx_len);
10692         if (!skb)
10693                 return -ENOMEM;
10694
10695         tx_data = skb_put(skb, tx_len);
10696         memcpy(tx_data, tp->dev->dev_addr, 6);
10697         memset(tx_data + 6, 0x0, 8);
10698
10699         tw32(MAC_RX_MTU_SIZE, tx_len + 4);
10700
10701         for (i = 14; i < tx_len; i++)
10702                 tx_data[i] = (u8) (i & 0xff);
10703
10704         map = pci_map_single(tp->pdev, skb->data, tx_len, PCI_DMA_TODEVICE);
10705         if (pci_dma_mapping_error(tp->pdev, map)) {
10706                 dev_kfree_skb(skb);
10707                 return -EIO;
10708         }
10709
10710         tw32_f(HOSTCC_MODE, tp->coalesce_mode | HOSTCC_MODE_ENABLE |
10711                rnapi->coal_now);
10712
10713         udelay(10);
10714
10715         rx_start_idx = rnapi->hw_status->idx[0].rx_producer;
10716
10717         num_pkts = 0;
10718
10719         tg3_set_txd(tnapi, tnapi->tx_prod, map, tx_len, 0, 1);
10720
10721         tnapi->tx_prod++;
10722         num_pkts++;
10723
10724         tw32_tx_mbox(tnapi->prodmbox, tnapi->tx_prod);
10725         tr32_mailbox(tnapi->prodmbox);
10726
10727         udelay(10);
10728
10729         /* 350 usec to allow enough time on some 10/100 Mbps devices.  */
10730         for (i = 0; i < 35; i++) {
10731                 tw32_f(HOSTCC_MODE, tp->coalesce_mode | HOSTCC_MODE_ENABLE |
10732                        coal_now);
10733
10734                 udelay(10);
10735
10736                 tx_idx = tnapi->hw_status->idx[0].tx_consumer;
10737                 rx_idx = rnapi->hw_status->idx[0].rx_producer;
10738                 if ((tx_idx == tnapi->tx_prod) &&
10739                     (rx_idx == (rx_start_idx + num_pkts)))
10740                         break;
10741         }
10742
10743         pci_unmap_single(tp->pdev, map, tx_len, PCI_DMA_TODEVICE);
10744         dev_kfree_skb(skb);
10745
10746         if (tx_idx != tnapi->tx_prod)
10747                 goto out;
10748
10749         if (rx_idx != rx_start_idx + num_pkts)
10750                 goto out;
10751
10752         desc = &rnapi->rx_rcb[rx_start_idx];
10753         desc_idx = desc->opaque & RXD_OPAQUE_INDEX_MASK;
10754         opaque_key = desc->opaque & RXD_OPAQUE_RING_MASK;
10755         if (opaque_key != RXD_OPAQUE_RING_STD)
10756                 goto out;
10757
10758         if ((desc->err_vlan & RXD_ERR_MASK) != 0 &&
10759             (desc->err_vlan != RXD_ERR_ODD_NIBBLE_RCVD_MII))
10760                 goto out;
10761
10762         rx_len = ((desc->idx_len & RXD_LEN_MASK) >> RXD_LEN_SHIFT) - 4;
10763         if (rx_len != tx_len)
10764                 goto out;
10765
10766         rx_skb = tpr->rx_std_buffers[desc_idx].skb;
10767
10768         map = dma_unmap_addr(&tpr->rx_std_buffers[desc_idx], mapping);
10769         pci_dma_sync_single_for_cpu(tp->pdev, map, rx_len, PCI_DMA_FROMDEVICE);
10770
10771         for (i = 14; i < tx_len; i++) {
10772                 if (*(rx_skb->data + i) != (u8) (i & 0xff))
10773                         goto out;
10774         }
10775         err = 0;
10776
10777         /* tg3_free_rings will unmap and free the rx_skb */
10778 out:
10779         return err;
10780 }
10781
10782 #define TG3_MAC_LOOPBACK_FAILED         1
10783 #define TG3_PHY_LOOPBACK_FAILED         2
10784 #define TG3_LOOPBACK_FAILED             (TG3_MAC_LOOPBACK_FAILED |      \
10785                                          TG3_PHY_LOOPBACK_FAILED)
10786
10787 static int tg3_test_loopback(struct tg3 *tp)
10788 {
10789         int err = 0;
10790         u32 cpmuctrl = 0;
10791
10792         if (!netif_running(tp->dev))
10793                 return TG3_LOOPBACK_FAILED;
10794
10795         err = tg3_reset_hw(tp, 1);
10796         if (err)
10797                 return TG3_LOOPBACK_FAILED;
10798
10799         /* Turn off gphy autopowerdown. */
10800         if (tp->tg3_flags3 & TG3_FLG3_PHY_ENABLE_APD)
10801                 tg3_phy_toggle_apd(tp, false);
10802
10803         if (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) {
10804                 int i;
10805                 u32 status;
10806
10807                 tw32(TG3_CPMU_MUTEX_REQ, CPMU_MUTEX_REQ_DRIVER);
10808
10809                 /* Wait for up to 40 microseconds to acquire lock. */
10810                 for (i = 0; i < 4; i++) {
10811                         status = tr32(TG3_CPMU_MUTEX_GNT);
10812                         if (status == CPMU_MUTEX_GNT_DRIVER)
10813                                 break;
10814                         udelay(10);
10815                 }
10816
10817                 if (status != CPMU_MUTEX_GNT_DRIVER)
10818                         return TG3_LOOPBACK_FAILED;
10819
10820                 /* Turn off link-based power management. */
10821                 cpmuctrl = tr32(TG3_CPMU_CTRL);
10822                 tw32(TG3_CPMU_CTRL,
10823                      cpmuctrl & ~(CPMU_CTRL_LINK_SPEED_MODE |
10824                                   CPMU_CTRL_LINK_AWARE_MODE));
10825         }
10826
10827         if (tg3_run_loopback(tp, TG3_MAC_LOOPBACK))
10828                 err |= TG3_MAC_LOOPBACK_FAILED;
10829
10830         if (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) {
10831                 tw32(TG3_CPMU_CTRL, cpmuctrl);
10832
10833                 /* Release the mutex */
10834                 tw32(TG3_CPMU_MUTEX_GNT, CPMU_MUTEX_GNT_DRIVER);
10835         }
10836
10837         if (!(tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) &&
10838             !(tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB)) {
10839                 if (tg3_run_loopback(tp, TG3_PHY_LOOPBACK))
10840                         err |= TG3_PHY_LOOPBACK_FAILED;
10841         }
10842
10843         /* Re-enable gphy autopowerdown. */
10844         if (tp->tg3_flags3 & TG3_FLG3_PHY_ENABLE_APD)
10845                 tg3_phy_toggle_apd(tp, true);
10846
10847         return err;
10848 }
10849
10850 static void tg3_self_test(struct net_device *dev, struct ethtool_test *etest,
10851                           u64 *data)
10852 {
10853         struct tg3 *tp = netdev_priv(dev);
10854
10855         if (tp->link_config.phy_is_low_power)
10856                 tg3_set_power_state(tp, PCI_D0);
10857
10858         memset(data, 0, sizeof(u64) * TG3_NUM_TEST);
10859
10860         if (tg3_test_nvram(tp) != 0) {
10861                 etest->flags |= ETH_TEST_FL_FAILED;
10862                 data[0] = 1;
10863         }
10864         if (tg3_test_link(tp) != 0) {
10865                 etest->flags |= ETH_TEST_FL_FAILED;
10866                 data[1] = 1;
10867         }
10868         if (etest->flags & ETH_TEST_FL_OFFLINE) {
10869                 int err, err2 = 0, irq_sync = 0;
10870
10871                 if (netif_running(dev)) {
10872                         tg3_phy_stop(tp);
10873                         tg3_netif_stop(tp);
10874                         irq_sync = 1;
10875                 }
10876
10877                 tg3_full_lock(tp, irq_sync);
10878
10879                 tg3_halt(tp, RESET_KIND_SUSPEND, 1);
10880                 err = tg3_nvram_lock(tp);
10881                 tg3_halt_cpu(tp, RX_CPU_BASE);
10882                 if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
10883                         tg3_halt_cpu(tp, TX_CPU_BASE);
10884                 if (!err)
10885                         tg3_nvram_unlock(tp);
10886
10887                 if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES)
10888                         tg3_phy_reset(tp);
10889
10890                 if (tg3_test_registers(tp) != 0) {
10891                         etest->flags |= ETH_TEST_FL_FAILED;
10892                         data[2] = 1;
10893                 }
10894                 if (tg3_test_memory(tp) != 0) {
10895                         etest->flags |= ETH_TEST_FL_FAILED;
10896                         data[3] = 1;
10897                 }
10898                 if ((data[4] = tg3_test_loopback(tp)) != 0)
10899                         etest->flags |= ETH_TEST_FL_FAILED;
10900
10901                 tg3_full_unlock(tp);
10902
10903                 if (tg3_test_interrupt(tp) != 0) {
10904                         etest->flags |= ETH_TEST_FL_FAILED;
10905                         data[5] = 1;
10906                 }
10907
10908                 tg3_full_lock(tp, 0);
10909
10910                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
10911                 if (netif_running(dev)) {
10912                         tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
10913                         err2 = tg3_restart_hw(tp, 1);
10914                         if (!err2)
10915                                 tg3_netif_start(tp);
10916                 }
10917
10918                 tg3_full_unlock(tp);
10919
10920                 if (irq_sync && !err2)
10921                         tg3_phy_start(tp);
10922         }
10923         if (tp->link_config.phy_is_low_power)
10924                 tg3_set_power_state(tp, PCI_D3hot);
10925
10926 }
10927
10928 static int tg3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
10929 {
10930         struct mii_ioctl_data *data = if_mii(ifr);
10931         struct tg3 *tp = netdev_priv(dev);
10932         int err;
10933
10934         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
10935                 struct phy_device *phydev;
10936                 if (!(tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED))
10937                         return -EAGAIN;
10938                 phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
10939                 return phy_mii_ioctl(phydev, data, cmd);
10940         }
10941
10942         switch (cmd) {
10943         case SIOCGMIIPHY:
10944                 data->phy_id = tp->phy_addr;
10945
10946                 /* fallthru */
10947         case SIOCGMIIREG: {
10948                 u32 mii_regval;
10949
10950                 if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)
10951                         break;                  /* We have no PHY */
10952
10953                 if (tp->link_config.phy_is_low_power)
10954                         return -EAGAIN;
10955
10956                 spin_lock_bh(&tp->lock);
10957                 err = tg3_readphy(tp, data->reg_num & 0x1f, &mii_regval);
10958                 spin_unlock_bh(&tp->lock);
10959
10960                 data->val_out = mii_regval;
10961
10962                 return err;
10963         }
10964
10965         case SIOCSMIIREG:
10966                 if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)
10967                         break;                  /* We have no PHY */
10968
10969                 if (tp->link_config.phy_is_low_power)
10970                         return -EAGAIN;
10971
10972                 spin_lock_bh(&tp->lock);
10973                 err = tg3_writephy(tp, data->reg_num & 0x1f, data->val_in);
10974                 spin_unlock_bh(&tp->lock);
10975
10976                 return err;
10977
10978         default:
10979                 /* do nothing */
10980                 break;
10981         }
10982         return -EOPNOTSUPP;
10983 }
10984
10985 #if TG3_VLAN_TAG_USED
10986 static void tg3_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
10987 {
10988         struct tg3 *tp = netdev_priv(dev);
10989
10990         if (!netif_running(dev)) {
10991                 tp->vlgrp = grp;
10992                 return;
10993         }
10994
10995         tg3_netif_stop(tp);
10996
10997         tg3_full_lock(tp, 0);
10998
10999         tp->vlgrp = grp;
11000
11001         /* Update RX_MODE_KEEP_VLAN_TAG bit in RX_MODE register. */
11002         __tg3_set_rx_mode(dev);
11003
11004         tg3_netif_start(tp);
11005
11006         tg3_full_unlock(tp);
11007 }
11008 #endif
11009
11010 static int tg3_get_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
11011 {
11012         struct tg3 *tp = netdev_priv(dev);
11013
11014         memcpy(ec, &tp->coal, sizeof(*ec));
11015         return 0;
11016 }
11017
11018 static int tg3_set_coalesce(struct net_device *dev, struct ethtool_coalesce *ec)
11019 {
11020         struct tg3 *tp = netdev_priv(dev);
11021         u32 max_rxcoal_tick_int = 0, max_txcoal_tick_int = 0;
11022         u32 max_stat_coal_ticks = 0, min_stat_coal_ticks = 0;
11023
11024         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
11025                 max_rxcoal_tick_int = MAX_RXCOAL_TICK_INT;
11026                 max_txcoal_tick_int = MAX_TXCOAL_TICK_INT;
11027                 max_stat_coal_ticks = MAX_STAT_COAL_TICKS;
11028                 min_stat_coal_ticks = MIN_STAT_COAL_TICKS;
11029         }
11030
11031         if ((ec->rx_coalesce_usecs > MAX_RXCOL_TICKS) ||
11032             (ec->tx_coalesce_usecs > MAX_TXCOL_TICKS) ||
11033             (ec->rx_max_coalesced_frames > MAX_RXMAX_FRAMES) ||
11034             (ec->tx_max_coalesced_frames > MAX_TXMAX_FRAMES) ||
11035             (ec->rx_coalesce_usecs_irq > max_rxcoal_tick_int) ||
11036             (ec->tx_coalesce_usecs_irq > max_txcoal_tick_int) ||
11037             (ec->rx_max_coalesced_frames_irq > MAX_RXCOAL_MAXF_INT) ||
11038             (ec->tx_max_coalesced_frames_irq > MAX_TXCOAL_MAXF_INT) ||
11039             (ec->stats_block_coalesce_usecs > max_stat_coal_ticks) ||
11040             (ec->stats_block_coalesce_usecs < min_stat_coal_ticks))
11041                 return -EINVAL;
11042
11043         /* No rx interrupts will be generated if both are zero */
11044         if ((ec->rx_coalesce_usecs == 0) &&
11045             (ec->rx_max_coalesced_frames == 0))
11046                 return -EINVAL;
11047
11048         /* No tx interrupts will be generated if both are zero */
11049         if ((ec->tx_coalesce_usecs == 0) &&
11050             (ec->tx_max_coalesced_frames == 0))
11051                 return -EINVAL;
11052
11053         /* Only copy relevant parameters, ignore all others. */
11054         tp->coal.rx_coalesce_usecs = ec->rx_coalesce_usecs;
11055         tp->coal.tx_coalesce_usecs = ec->tx_coalesce_usecs;
11056         tp->coal.rx_max_coalesced_frames = ec->rx_max_coalesced_frames;
11057         tp->coal.tx_max_coalesced_frames = ec->tx_max_coalesced_frames;
11058         tp->coal.rx_coalesce_usecs_irq = ec->rx_coalesce_usecs_irq;
11059         tp->coal.tx_coalesce_usecs_irq = ec->tx_coalesce_usecs_irq;
11060         tp->coal.rx_max_coalesced_frames_irq = ec->rx_max_coalesced_frames_irq;
11061         tp->coal.tx_max_coalesced_frames_irq = ec->tx_max_coalesced_frames_irq;
11062         tp->coal.stats_block_coalesce_usecs = ec->stats_block_coalesce_usecs;
11063
11064         if (netif_running(dev)) {
11065                 tg3_full_lock(tp, 0);
11066                 __tg3_set_coalesce(tp, &tp->coal);
11067                 tg3_full_unlock(tp);
11068         }
11069         return 0;
11070 }
11071
11072 static const struct ethtool_ops tg3_ethtool_ops = {
11073         .get_settings           = tg3_get_settings,
11074         .set_settings           = tg3_set_settings,
11075         .get_drvinfo            = tg3_get_drvinfo,
11076         .get_regs_len           = tg3_get_regs_len,
11077         .get_regs               = tg3_get_regs,
11078         .get_wol                = tg3_get_wol,
11079         .set_wol                = tg3_set_wol,
11080         .get_msglevel           = tg3_get_msglevel,
11081         .set_msglevel           = tg3_set_msglevel,
11082         .nway_reset             = tg3_nway_reset,
11083         .get_link               = ethtool_op_get_link,
11084         .get_eeprom_len         = tg3_get_eeprom_len,
11085         .get_eeprom             = tg3_get_eeprom,
11086         .set_eeprom             = tg3_set_eeprom,
11087         .get_ringparam          = tg3_get_ringparam,
11088         .set_ringparam          = tg3_set_ringparam,
11089         .get_pauseparam         = tg3_get_pauseparam,
11090         .set_pauseparam         = tg3_set_pauseparam,
11091         .get_rx_csum            = tg3_get_rx_csum,
11092         .set_rx_csum            = tg3_set_rx_csum,
11093         .set_tx_csum            = tg3_set_tx_csum,
11094         .set_sg                 = ethtool_op_set_sg,
11095         .set_tso                = tg3_set_tso,
11096         .self_test              = tg3_self_test,
11097         .get_strings            = tg3_get_strings,
11098         .phys_id                = tg3_phys_id,
11099         .get_ethtool_stats      = tg3_get_ethtool_stats,
11100         .get_coalesce           = tg3_get_coalesce,
11101         .set_coalesce           = tg3_set_coalesce,
11102         .get_sset_count         = tg3_get_sset_count,
11103 };
11104
11105 static void __devinit tg3_get_eeprom_size(struct tg3 *tp)
11106 {
11107         u32 cursize, val, magic;
11108
11109         tp->nvram_size = EEPROM_CHIP_SIZE;
11110
11111         if (tg3_nvram_read(tp, 0, &magic) != 0)
11112                 return;
11113
11114         if ((magic != TG3_EEPROM_MAGIC) &&
11115             ((magic & TG3_EEPROM_MAGIC_FW_MSK) != TG3_EEPROM_MAGIC_FW) &&
11116             ((magic & TG3_EEPROM_MAGIC_HW_MSK) != TG3_EEPROM_MAGIC_HW))
11117                 return;
11118
11119         /*
11120          * Size the chip by reading offsets at increasing powers of two.
11121          * When we encounter our validation signature, we know the addressing
11122          * has wrapped around, and thus have our chip size.
11123          */
11124         cursize = 0x10;
11125
11126         while (cursize < tp->nvram_size) {
11127                 if (tg3_nvram_read(tp, cursize, &val) != 0)
11128                         return;
11129
11130                 if (val == magic)
11131                         break;
11132
11133                 cursize <<= 1;
11134         }
11135
11136         tp->nvram_size = cursize;
11137 }
11138
11139 static void __devinit tg3_get_nvram_size(struct tg3 *tp)
11140 {
11141         u32 val;
11142
11143         if ((tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) ||
11144             tg3_nvram_read(tp, 0, &val) != 0)
11145                 return;
11146
11147         /* Selfboot format */
11148         if (val != TG3_EEPROM_MAGIC) {
11149                 tg3_get_eeprom_size(tp);
11150                 return;
11151         }
11152
11153         if (tg3_nvram_read(tp, 0xf0, &val) == 0) {
11154                 if (val != 0) {
11155                         /* This is confusing.  We want to operate on the
11156                          * 16-bit value at offset 0xf2.  The tg3_nvram_read()
11157                          * call will read from NVRAM and byteswap the data
11158                          * according to the byteswapping settings for all
11159                          * other register accesses.  This ensures the data we
11160                          * want will always reside in the lower 16-bits.
11161                          * However, the data in NVRAM is in LE format, which
11162                          * means the data from the NVRAM read will always be
11163                          * opposite the endianness of the CPU.  The 16-bit
11164                          * byteswap then brings the data to CPU endianness.
11165                          */
11166                         tp->nvram_size = swab16((u16)(val & 0x0000ffff)) * 1024;
11167                         return;
11168                 }
11169         }
11170         tp->nvram_size = TG3_NVRAM_SIZE_512KB;
11171 }
11172
11173 static void __devinit tg3_get_nvram_info(struct tg3 *tp)
11174 {
11175         u32 nvcfg1;
11176
11177         nvcfg1 = tr32(NVRAM_CFG1);
11178         if (nvcfg1 & NVRAM_CFG1_FLASHIF_ENAB) {
11179                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11180         } else {
11181                 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
11182                 tw32(NVRAM_CFG1, nvcfg1);
11183         }
11184
11185         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750) ||
11186             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
11187                 switch (nvcfg1 & NVRAM_CFG1_VENDOR_MASK) {
11188                 case FLASH_VENDOR_ATMEL_FLASH_BUFFERED:
11189                         tp->nvram_jedecnum = JEDEC_ATMEL;
11190                         tp->nvram_pagesize = ATMEL_AT45DB0X1B_PAGE_SIZE;
11191                         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11192                         break;
11193                 case FLASH_VENDOR_ATMEL_FLASH_UNBUFFERED:
11194                         tp->nvram_jedecnum = JEDEC_ATMEL;
11195                         tp->nvram_pagesize = ATMEL_AT25F512_PAGE_SIZE;
11196                         break;
11197                 case FLASH_VENDOR_ATMEL_EEPROM:
11198                         tp->nvram_jedecnum = JEDEC_ATMEL;
11199                         tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
11200                         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11201                         break;
11202                 case FLASH_VENDOR_ST:
11203                         tp->nvram_jedecnum = JEDEC_ST;
11204                         tp->nvram_pagesize = ST_M45PEX0_PAGE_SIZE;
11205                         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11206                         break;
11207                 case FLASH_VENDOR_SAIFUN:
11208                         tp->nvram_jedecnum = JEDEC_SAIFUN;
11209                         tp->nvram_pagesize = SAIFUN_SA25F0XX_PAGE_SIZE;
11210                         break;
11211                 case FLASH_VENDOR_SST_SMALL:
11212                 case FLASH_VENDOR_SST_LARGE:
11213                         tp->nvram_jedecnum = JEDEC_SST;
11214                         tp->nvram_pagesize = SST_25VF0X0_PAGE_SIZE;
11215                         break;
11216                 }
11217         } else {
11218                 tp->nvram_jedecnum = JEDEC_ATMEL;
11219                 tp->nvram_pagesize = ATMEL_AT45DB0X1B_PAGE_SIZE;
11220                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11221         }
11222 }
11223
11224 static void __devinit tg3_nvram_get_pagesize(struct tg3 *tp, u32 nvmcfg1)
11225 {
11226         switch (nvmcfg1 & NVRAM_CFG1_5752PAGE_SIZE_MASK) {
11227         case FLASH_5752PAGE_SIZE_256:
11228                 tp->nvram_pagesize = 256;
11229                 break;
11230         case FLASH_5752PAGE_SIZE_512:
11231                 tp->nvram_pagesize = 512;
11232                 break;
11233         case FLASH_5752PAGE_SIZE_1K:
11234                 tp->nvram_pagesize = 1024;
11235                 break;
11236         case FLASH_5752PAGE_SIZE_2K:
11237                 tp->nvram_pagesize = 2048;
11238                 break;
11239         case FLASH_5752PAGE_SIZE_4K:
11240                 tp->nvram_pagesize = 4096;
11241                 break;
11242         case FLASH_5752PAGE_SIZE_264:
11243                 tp->nvram_pagesize = 264;
11244                 break;
11245         case FLASH_5752PAGE_SIZE_528:
11246                 tp->nvram_pagesize = 528;
11247                 break;
11248         }
11249 }
11250
11251 static void __devinit tg3_get_5752_nvram_info(struct tg3 *tp)
11252 {
11253         u32 nvcfg1;
11254
11255         nvcfg1 = tr32(NVRAM_CFG1);
11256
11257         /* NVRAM protection for TPM */
11258         if (nvcfg1 & (1 << 27))
11259                 tp->tg3_flags3 |= TG3_FLG3_PROTECTED_NVRAM;
11260
11261         switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11262         case FLASH_5752VENDOR_ATMEL_EEPROM_64KHZ:
11263         case FLASH_5752VENDOR_ATMEL_EEPROM_376KHZ:
11264                 tp->nvram_jedecnum = JEDEC_ATMEL;
11265                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11266                 break;
11267         case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
11268                 tp->nvram_jedecnum = JEDEC_ATMEL;
11269                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11270                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11271                 break;
11272         case FLASH_5752VENDOR_ST_M45PE10:
11273         case FLASH_5752VENDOR_ST_M45PE20:
11274         case FLASH_5752VENDOR_ST_M45PE40:
11275                 tp->nvram_jedecnum = JEDEC_ST;
11276                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11277                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11278                 break;
11279         }
11280
11281         if (tp->tg3_flags2 & TG3_FLG2_FLASH) {
11282                 tg3_nvram_get_pagesize(tp, nvcfg1);
11283         } else {
11284                 /* For eeprom, set pagesize to maximum eeprom size */
11285                 tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
11286
11287                 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
11288                 tw32(NVRAM_CFG1, nvcfg1);
11289         }
11290 }
11291
11292 static void __devinit tg3_get_5755_nvram_info(struct tg3 *tp)
11293 {
11294         u32 nvcfg1, protect = 0;
11295
11296         nvcfg1 = tr32(NVRAM_CFG1);
11297
11298         /* NVRAM protection for TPM */
11299         if (nvcfg1 & (1 << 27)) {
11300                 tp->tg3_flags3 |= TG3_FLG3_PROTECTED_NVRAM;
11301                 protect = 1;
11302         }
11303
11304         nvcfg1 &= NVRAM_CFG1_5752VENDOR_MASK;
11305         switch (nvcfg1) {
11306         case FLASH_5755VENDOR_ATMEL_FLASH_1:
11307         case FLASH_5755VENDOR_ATMEL_FLASH_2:
11308         case FLASH_5755VENDOR_ATMEL_FLASH_3:
11309         case FLASH_5755VENDOR_ATMEL_FLASH_5:
11310                 tp->nvram_jedecnum = JEDEC_ATMEL;
11311                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11312                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11313                 tp->nvram_pagesize = 264;
11314                 if (nvcfg1 == FLASH_5755VENDOR_ATMEL_FLASH_1 ||
11315                     nvcfg1 == FLASH_5755VENDOR_ATMEL_FLASH_5)
11316                         tp->nvram_size = (protect ? 0x3e200 :
11317                                           TG3_NVRAM_SIZE_512KB);
11318                 else if (nvcfg1 == FLASH_5755VENDOR_ATMEL_FLASH_2)
11319                         tp->nvram_size = (protect ? 0x1f200 :
11320                                           TG3_NVRAM_SIZE_256KB);
11321                 else
11322                         tp->nvram_size = (protect ? 0x1f200 :
11323                                           TG3_NVRAM_SIZE_128KB);
11324                 break;
11325         case FLASH_5752VENDOR_ST_M45PE10:
11326         case FLASH_5752VENDOR_ST_M45PE20:
11327         case FLASH_5752VENDOR_ST_M45PE40:
11328                 tp->nvram_jedecnum = JEDEC_ST;
11329                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11330                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11331                 tp->nvram_pagesize = 256;
11332                 if (nvcfg1 == FLASH_5752VENDOR_ST_M45PE10)
11333                         tp->nvram_size = (protect ?
11334                                           TG3_NVRAM_SIZE_64KB :
11335                                           TG3_NVRAM_SIZE_128KB);
11336                 else if (nvcfg1 == FLASH_5752VENDOR_ST_M45PE20)
11337                         tp->nvram_size = (protect ?
11338                                           TG3_NVRAM_SIZE_64KB :
11339                                           TG3_NVRAM_SIZE_256KB);
11340                 else
11341                         tp->nvram_size = (protect ?
11342                                           TG3_NVRAM_SIZE_128KB :
11343                                           TG3_NVRAM_SIZE_512KB);
11344                 break;
11345         }
11346 }
11347
11348 static void __devinit tg3_get_5787_nvram_info(struct tg3 *tp)
11349 {
11350         u32 nvcfg1;
11351
11352         nvcfg1 = tr32(NVRAM_CFG1);
11353
11354         switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11355         case FLASH_5787VENDOR_ATMEL_EEPROM_64KHZ:
11356         case FLASH_5787VENDOR_ATMEL_EEPROM_376KHZ:
11357         case FLASH_5787VENDOR_MICRO_EEPROM_64KHZ:
11358         case FLASH_5787VENDOR_MICRO_EEPROM_376KHZ:
11359                 tp->nvram_jedecnum = JEDEC_ATMEL;
11360                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11361                 tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
11362
11363                 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
11364                 tw32(NVRAM_CFG1, nvcfg1);
11365                 break;
11366         case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
11367         case FLASH_5755VENDOR_ATMEL_FLASH_1:
11368         case FLASH_5755VENDOR_ATMEL_FLASH_2:
11369         case FLASH_5755VENDOR_ATMEL_FLASH_3:
11370                 tp->nvram_jedecnum = JEDEC_ATMEL;
11371                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11372                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11373                 tp->nvram_pagesize = 264;
11374                 break;
11375         case FLASH_5752VENDOR_ST_M45PE10:
11376         case FLASH_5752VENDOR_ST_M45PE20:
11377         case FLASH_5752VENDOR_ST_M45PE40:
11378                 tp->nvram_jedecnum = JEDEC_ST;
11379                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11380                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11381                 tp->nvram_pagesize = 256;
11382                 break;
11383         }
11384 }
11385
11386 static void __devinit tg3_get_5761_nvram_info(struct tg3 *tp)
11387 {
11388         u32 nvcfg1, protect = 0;
11389
11390         nvcfg1 = tr32(NVRAM_CFG1);
11391
11392         /* NVRAM protection for TPM */
11393         if (nvcfg1 & (1 << 27)) {
11394                 tp->tg3_flags3 |= TG3_FLG3_PROTECTED_NVRAM;
11395                 protect = 1;
11396         }
11397
11398         nvcfg1 &= NVRAM_CFG1_5752VENDOR_MASK;
11399         switch (nvcfg1) {
11400         case FLASH_5761VENDOR_ATMEL_ADB021D:
11401         case FLASH_5761VENDOR_ATMEL_ADB041D:
11402         case FLASH_5761VENDOR_ATMEL_ADB081D:
11403         case FLASH_5761VENDOR_ATMEL_ADB161D:
11404         case FLASH_5761VENDOR_ATMEL_MDB021D:
11405         case FLASH_5761VENDOR_ATMEL_MDB041D:
11406         case FLASH_5761VENDOR_ATMEL_MDB081D:
11407         case FLASH_5761VENDOR_ATMEL_MDB161D:
11408                 tp->nvram_jedecnum = JEDEC_ATMEL;
11409                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11410                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11411                 tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM_ADDR_TRANS;
11412                 tp->nvram_pagesize = 256;
11413                 break;
11414         case FLASH_5761VENDOR_ST_A_M45PE20:
11415         case FLASH_5761VENDOR_ST_A_M45PE40:
11416         case FLASH_5761VENDOR_ST_A_M45PE80:
11417         case FLASH_5761VENDOR_ST_A_M45PE16:
11418         case FLASH_5761VENDOR_ST_M_M45PE20:
11419         case FLASH_5761VENDOR_ST_M_M45PE40:
11420         case FLASH_5761VENDOR_ST_M_M45PE80:
11421         case FLASH_5761VENDOR_ST_M_M45PE16:
11422                 tp->nvram_jedecnum = JEDEC_ST;
11423                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11424                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11425                 tp->nvram_pagesize = 256;
11426                 break;
11427         }
11428
11429         if (protect) {
11430                 tp->nvram_size = tr32(NVRAM_ADDR_LOCKOUT);
11431         } else {
11432                 switch (nvcfg1) {
11433                 case FLASH_5761VENDOR_ATMEL_ADB161D:
11434                 case FLASH_5761VENDOR_ATMEL_MDB161D:
11435                 case FLASH_5761VENDOR_ST_A_M45PE16:
11436                 case FLASH_5761VENDOR_ST_M_M45PE16:
11437                         tp->nvram_size = TG3_NVRAM_SIZE_2MB;
11438                         break;
11439                 case FLASH_5761VENDOR_ATMEL_ADB081D:
11440                 case FLASH_5761VENDOR_ATMEL_MDB081D:
11441                 case FLASH_5761VENDOR_ST_A_M45PE80:
11442                 case FLASH_5761VENDOR_ST_M_M45PE80:
11443                         tp->nvram_size = TG3_NVRAM_SIZE_1MB;
11444                         break;
11445                 case FLASH_5761VENDOR_ATMEL_ADB041D:
11446                 case FLASH_5761VENDOR_ATMEL_MDB041D:
11447                 case FLASH_5761VENDOR_ST_A_M45PE40:
11448                 case FLASH_5761VENDOR_ST_M_M45PE40:
11449                         tp->nvram_size = TG3_NVRAM_SIZE_512KB;
11450                         break;
11451                 case FLASH_5761VENDOR_ATMEL_ADB021D:
11452                 case FLASH_5761VENDOR_ATMEL_MDB021D:
11453                 case FLASH_5761VENDOR_ST_A_M45PE20:
11454                 case FLASH_5761VENDOR_ST_M_M45PE20:
11455                         tp->nvram_size = TG3_NVRAM_SIZE_256KB;
11456                         break;
11457                 }
11458         }
11459 }
11460
11461 static void __devinit tg3_get_5906_nvram_info(struct tg3 *tp)
11462 {
11463         tp->nvram_jedecnum = JEDEC_ATMEL;
11464         tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11465         tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
11466 }
11467
11468 static void __devinit tg3_get_57780_nvram_info(struct tg3 *tp)
11469 {
11470         u32 nvcfg1;
11471
11472         nvcfg1 = tr32(NVRAM_CFG1);
11473
11474         switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11475         case FLASH_5787VENDOR_ATMEL_EEPROM_376KHZ:
11476         case FLASH_5787VENDOR_MICRO_EEPROM_376KHZ:
11477                 tp->nvram_jedecnum = JEDEC_ATMEL;
11478                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11479                 tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
11480
11481                 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
11482                 tw32(NVRAM_CFG1, nvcfg1);
11483                 return;
11484         case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
11485         case FLASH_57780VENDOR_ATMEL_AT45DB011D:
11486         case FLASH_57780VENDOR_ATMEL_AT45DB011B:
11487         case FLASH_57780VENDOR_ATMEL_AT45DB021D:
11488         case FLASH_57780VENDOR_ATMEL_AT45DB021B:
11489         case FLASH_57780VENDOR_ATMEL_AT45DB041D:
11490         case FLASH_57780VENDOR_ATMEL_AT45DB041B:
11491                 tp->nvram_jedecnum = JEDEC_ATMEL;
11492                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11493                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11494
11495                 switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11496                 case FLASH_5752VENDOR_ATMEL_FLASH_BUFFERED:
11497                 case FLASH_57780VENDOR_ATMEL_AT45DB011D:
11498                 case FLASH_57780VENDOR_ATMEL_AT45DB011B:
11499                         tp->nvram_size = TG3_NVRAM_SIZE_128KB;
11500                         break;
11501                 case FLASH_57780VENDOR_ATMEL_AT45DB021D:
11502                 case FLASH_57780VENDOR_ATMEL_AT45DB021B:
11503                         tp->nvram_size = TG3_NVRAM_SIZE_256KB;
11504                         break;
11505                 case FLASH_57780VENDOR_ATMEL_AT45DB041D:
11506                 case FLASH_57780VENDOR_ATMEL_AT45DB041B:
11507                         tp->nvram_size = TG3_NVRAM_SIZE_512KB;
11508                         break;
11509                 }
11510                 break;
11511         case FLASH_5752VENDOR_ST_M45PE10:
11512         case FLASH_5752VENDOR_ST_M45PE20:
11513         case FLASH_5752VENDOR_ST_M45PE40:
11514                 tp->nvram_jedecnum = JEDEC_ST;
11515                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11516                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11517
11518                 switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11519                 case FLASH_5752VENDOR_ST_M45PE10:
11520                         tp->nvram_size = TG3_NVRAM_SIZE_128KB;
11521                         break;
11522                 case FLASH_5752VENDOR_ST_M45PE20:
11523                         tp->nvram_size = TG3_NVRAM_SIZE_256KB;
11524                         break;
11525                 case FLASH_5752VENDOR_ST_M45PE40:
11526                         tp->nvram_size = TG3_NVRAM_SIZE_512KB;
11527                         break;
11528                 }
11529                 break;
11530         default:
11531                 tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM;
11532                 return;
11533         }
11534
11535         tg3_nvram_get_pagesize(tp, nvcfg1);
11536         if (tp->nvram_pagesize != 264 && tp->nvram_pagesize != 528)
11537                 tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM_ADDR_TRANS;
11538 }
11539
11540
11541 static void __devinit tg3_get_5717_nvram_info(struct tg3 *tp)
11542 {
11543         u32 nvcfg1;
11544
11545         nvcfg1 = tr32(NVRAM_CFG1);
11546
11547         switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11548         case FLASH_5717VENDOR_ATMEL_EEPROM:
11549         case FLASH_5717VENDOR_MICRO_EEPROM:
11550                 tp->nvram_jedecnum = JEDEC_ATMEL;
11551                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11552                 tp->nvram_pagesize = ATMEL_AT24C512_CHIP_SIZE;
11553
11554                 nvcfg1 &= ~NVRAM_CFG1_COMPAT_BYPASS;
11555                 tw32(NVRAM_CFG1, nvcfg1);
11556                 return;
11557         case FLASH_5717VENDOR_ATMEL_MDB011D:
11558         case FLASH_5717VENDOR_ATMEL_ADB011B:
11559         case FLASH_5717VENDOR_ATMEL_ADB011D:
11560         case FLASH_5717VENDOR_ATMEL_MDB021D:
11561         case FLASH_5717VENDOR_ATMEL_ADB021B:
11562         case FLASH_5717VENDOR_ATMEL_ADB021D:
11563         case FLASH_5717VENDOR_ATMEL_45USPT:
11564                 tp->nvram_jedecnum = JEDEC_ATMEL;
11565                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11566                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11567
11568                 switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11569                 case FLASH_5717VENDOR_ATMEL_MDB021D:
11570                 case FLASH_5717VENDOR_ATMEL_ADB021B:
11571                 case FLASH_5717VENDOR_ATMEL_ADB021D:
11572                         tp->nvram_size = TG3_NVRAM_SIZE_256KB;
11573                         break;
11574                 default:
11575                         tp->nvram_size = TG3_NVRAM_SIZE_128KB;
11576                         break;
11577                 }
11578                 break;
11579         case FLASH_5717VENDOR_ST_M_M25PE10:
11580         case FLASH_5717VENDOR_ST_A_M25PE10:
11581         case FLASH_5717VENDOR_ST_M_M45PE10:
11582         case FLASH_5717VENDOR_ST_A_M45PE10:
11583         case FLASH_5717VENDOR_ST_M_M25PE20:
11584         case FLASH_5717VENDOR_ST_A_M25PE20:
11585         case FLASH_5717VENDOR_ST_M_M45PE20:
11586         case FLASH_5717VENDOR_ST_A_M45PE20:
11587         case FLASH_5717VENDOR_ST_25USPT:
11588         case FLASH_5717VENDOR_ST_45USPT:
11589                 tp->nvram_jedecnum = JEDEC_ST;
11590                 tp->tg3_flags |= TG3_FLAG_NVRAM_BUFFERED;
11591                 tp->tg3_flags2 |= TG3_FLG2_FLASH;
11592
11593                 switch (nvcfg1 & NVRAM_CFG1_5752VENDOR_MASK) {
11594                 case FLASH_5717VENDOR_ST_M_M25PE20:
11595                 case FLASH_5717VENDOR_ST_A_M25PE20:
11596                 case FLASH_5717VENDOR_ST_M_M45PE20:
11597                 case FLASH_5717VENDOR_ST_A_M45PE20:
11598                         tp->nvram_size = TG3_NVRAM_SIZE_256KB;
11599                         break;
11600                 default:
11601                         tp->nvram_size = TG3_NVRAM_SIZE_128KB;
11602                         break;
11603                 }
11604                 break;
11605         default:
11606                 tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM;
11607                 return;
11608         }
11609
11610         tg3_nvram_get_pagesize(tp, nvcfg1);
11611         if (tp->nvram_pagesize != 264 && tp->nvram_pagesize != 528)
11612                 tp->tg3_flags3 |= TG3_FLG3_NO_NVRAM_ADDR_TRANS;
11613 }
11614
11615 /* Chips other than 5700/5701 use the NVRAM for fetching info. */
11616 static void __devinit tg3_nvram_init(struct tg3 *tp)
11617 {
11618         tw32_f(GRC_EEPROM_ADDR,
11619              (EEPROM_ADDR_FSM_RESET |
11620               (EEPROM_DEFAULT_CLOCK_PERIOD <<
11621                EEPROM_ADDR_CLKPERD_SHIFT)));
11622
11623         msleep(1);
11624
11625         /* Enable seeprom accesses. */
11626         tw32_f(GRC_LOCAL_CTRL,
11627              tr32(GRC_LOCAL_CTRL) | GRC_LCLCTRL_AUTO_SEEPROM);
11628         udelay(100);
11629
11630         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
11631             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701) {
11632                 tp->tg3_flags |= TG3_FLAG_NVRAM;
11633
11634                 if (tg3_nvram_lock(tp)) {
11635                         netdev_warn(tp->dev,
11636                                     "Cannot get nvram lock, %s failed\n",
11637                                     __func__);
11638                         return;
11639                 }
11640                 tg3_enable_nvram_access(tp);
11641
11642                 tp->nvram_size = 0;
11643
11644                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752)
11645                         tg3_get_5752_nvram_info(tp);
11646                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755)
11647                         tg3_get_5755_nvram_info(tp);
11648                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5787 ||
11649                          GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
11650                          GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
11651                         tg3_get_5787_nvram_info(tp);
11652                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761)
11653                         tg3_get_5761_nvram_info(tp);
11654                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
11655                         tg3_get_5906_nvram_info(tp);
11656                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 ||
11657                          GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
11658                         tg3_get_57780_nvram_info(tp);
11659                 else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717)
11660                         tg3_get_5717_nvram_info(tp);
11661                 else
11662                         tg3_get_nvram_info(tp);
11663
11664                 if (tp->nvram_size == 0)
11665                         tg3_get_nvram_size(tp);
11666
11667                 tg3_disable_nvram_access(tp);
11668                 tg3_nvram_unlock(tp);
11669
11670         } else {
11671                 tp->tg3_flags &= ~(TG3_FLAG_NVRAM | TG3_FLAG_NVRAM_BUFFERED);
11672
11673                 tg3_get_eeprom_size(tp);
11674         }
11675 }
11676
11677 static int tg3_nvram_write_block_using_eeprom(struct tg3 *tp,
11678                                     u32 offset, u32 len, u8 *buf)
11679 {
11680         int i, j, rc = 0;
11681         u32 val;
11682
11683         for (i = 0; i < len; i += 4) {
11684                 u32 addr;
11685                 __be32 data;
11686
11687                 addr = offset + i;
11688
11689                 memcpy(&data, buf + i, 4);
11690
11691                 /*
11692                  * The SEEPROM interface expects the data to always be opposite
11693                  * the native endian format.  We accomplish this by reversing
11694                  * all the operations that would have been performed on the
11695                  * data from a call to tg3_nvram_read_be32().
11696                  */
11697                 tw32(GRC_EEPROM_DATA, swab32(be32_to_cpu(data)));
11698
11699                 val = tr32(GRC_EEPROM_ADDR);
11700                 tw32(GRC_EEPROM_ADDR, val | EEPROM_ADDR_COMPLETE);
11701
11702                 val &= ~(EEPROM_ADDR_ADDR_MASK | EEPROM_ADDR_DEVID_MASK |
11703                         EEPROM_ADDR_READ);
11704                 tw32(GRC_EEPROM_ADDR, val |
11705                         (0 << EEPROM_ADDR_DEVID_SHIFT) |
11706                         (addr & EEPROM_ADDR_ADDR_MASK) |
11707                         EEPROM_ADDR_START |
11708                         EEPROM_ADDR_WRITE);
11709
11710                 for (j = 0; j < 1000; j++) {
11711                         val = tr32(GRC_EEPROM_ADDR);
11712
11713                         if (val & EEPROM_ADDR_COMPLETE)
11714                                 break;
11715                         msleep(1);
11716                 }
11717                 if (!(val & EEPROM_ADDR_COMPLETE)) {
11718                         rc = -EBUSY;
11719                         break;
11720                 }
11721         }
11722
11723         return rc;
11724 }
11725
11726 /* offset and length are dword aligned */
11727 static int tg3_nvram_write_block_unbuffered(struct tg3 *tp, u32 offset, u32 len,
11728                 u8 *buf)
11729 {
11730         int ret = 0;
11731         u32 pagesize = tp->nvram_pagesize;
11732         u32 pagemask = pagesize - 1;
11733         u32 nvram_cmd;
11734         u8 *tmp;
11735
11736         tmp = kmalloc(pagesize, GFP_KERNEL);
11737         if (tmp == NULL)
11738                 return -ENOMEM;
11739
11740         while (len) {
11741                 int j;
11742                 u32 phy_addr, page_off, size;
11743
11744                 phy_addr = offset & ~pagemask;
11745
11746                 for (j = 0; j < pagesize; j += 4) {
11747                         ret = tg3_nvram_read_be32(tp, phy_addr + j,
11748                                                   (__be32 *) (tmp + j));
11749                         if (ret)
11750                                 break;
11751                 }
11752                 if (ret)
11753                         break;
11754
11755                 page_off = offset & pagemask;
11756                 size = pagesize;
11757                 if (len < size)
11758                         size = len;
11759
11760                 len -= size;
11761
11762                 memcpy(tmp + page_off, buf, size);
11763
11764                 offset = offset + (pagesize - page_off);
11765
11766                 tg3_enable_nvram_access(tp);
11767
11768                 /*
11769                  * Before we can erase the flash page, we need
11770                  * to issue a special "write enable" command.
11771                  */
11772                 nvram_cmd = NVRAM_CMD_WREN | NVRAM_CMD_GO | NVRAM_CMD_DONE;
11773
11774                 if (tg3_nvram_exec_cmd(tp, nvram_cmd))
11775                         break;
11776
11777                 /* Erase the target page */
11778                 tw32(NVRAM_ADDR, phy_addr);
11779
11780                 nvram_cmd = NVRAM_CMD_GO | NVRAM_CMD_DONE | NVRAM_CMD_WR |
11781                         NVRAM_CMD_FIRST | NVRAM_CMD_LAST | NVRAM_CMD_ERASE;
11782
11783                 if (tg3_nvram_exec_cmd(tp, nvram_cmd))
11784                         break;
11785
11786                 /* Issue another write enable to start the write. */
11787                 nvram_cmd = NVRAM_CMD_WREN | NVRAM_CMD_GO | NVRAM_CMD_DONE;
11788
11789                 if (tg3_nvram_exec_cmd(tp, nvram_cmd))
11790                         break;
11791
11792                 for (j = 0; j < pagesize; j += 4) {
11793                         __be32 data;
11794
11795                         data = *((__be32 *) (tmp + j));
11796
11797                         tw32(NVRAM_WRDATA, be32_to_cpu(data));
11798
11799                         tw32(NVRAM_ADDR, phy_addr + j);
11800
11801                         nvram_cmd = NVRAM_CMD_GO | NVRAM_CMD_DONE |
11802                                 NVRAM_CMD_WR;
11803
11804                         if (j == 0)
11805                                 nvram_cmd |= NVRAM_CMD_FIRST;
11806                         else if (j == (pagesize - 4))
11807                                 nvram_cmd |= NVRAM_CMD_LAST;
11808
11809                         if ((ret = tg3_nvram_exec_cmd(tp, nvram_cmd)))
11810                                 break;
11811                 }
11812                 if (ret)
11813                         break;
11814         }
11815
11816         nvram_cmd = NVRAM_CMD_WRDI | NVRAM_CMD_GO | NVRAM_CMD_DONE;
11817         tg3_nvram_exec_cmd(tp, nvram_cmd);
11818
11819         kfree(tmp);
11820
11821         return ret;
11822 }
11823
11824 /* offset and length are dword aligned */
11825 static int tg3_nvram_write_block_buffered(struct tg3 *tp, u32 offset, u32 len,
11826                 u8 *buf)
11827 {
11828         int i, ret = 0;
11829
11830         for (i = 0; i < len; i += 4, offset += 4) {
11831                 u32 page_off, phy_addr, nvram_cmd;
11832                 __be32 data;
11833
11834                 memcpy(&data, buf + i, 4);
11835                 tw32(NVRAM_WRDATA, be32_to_cpu(data));
11836
11837                 page_off = offset % tp->nvram_pagesize;
11838
11839                 phy_addr = tg3_nvram_phys_addr(tp, offset);
11840
11841                 tw32(NVRAM_ADDR, phy_addr);
11842
11843                 nvram_cmd = NVRAM_CMD_GO | NVRAM_CMD_DONE | NVRAM_CMD_WR;
11844
11845                 if (page_off == 0 || i == 0)
11846                         nvram_cmd |= NVRAM_CMD_FIRST;
11847                 if (page_off == (tp->nvram_pagesize - 4))
11848                         nvram_cmd |= NVRAM_CMD_LAST;
11849
11850                 if (i == (len - 4))
11851                         nvram_cmd |= NVRAM_CMD_LAST;
11852
11853                 if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5752 &&
11854                     !(tp->tg3_flags3 & TG3_FLG3_5755_PLUS) &&
11855                     (tp->nvram_jedecnum == JEDEC_ST) &&
11856                     (nvram_cmd & NVRAM_CMD_FIRST)) {
11857
11858                         if ((ret = tg3_nvram_exec_cmd(tp,
11859                                 NVRAM_CMD_WREN | NVRAM_CMD_GO |
11860                                 NVRAM_CMD_DONE)))
11861
11862                                 break;
11863                 }
11864                 if (!(tp->tg3_flags2 & TG3_FLG2_FLASH)) {
11865                         /* We always do complete word writes to eeprom. */
11866                         nvram_cmd |= (NVRAM_CMD_FIRST | NVRAM_CMD_LAST);
11867                 }
11868
11869                 if ((ret = tg3_nvram_exec_cmd(tp, nvram_cmd)))
11870                         break;
11871         }
11872         return ret;
11873 }
11874
11875 /* offset and length are dword aligned */
11876 static int tg3_nvram_write_block(struct tg3 *tp, u32 offset, u32 len, u8 *buf)
11877 {
11878         int ret;
11879
11880         if (tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT) {
11881                 tw32_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl &
11882                        ~GRC_LCLCTRL_GPIO_OUTPUT1);
11883                 udelay(40);
11884         }
11885
11886         if (!(tp->tg3_flags & TG3_FLAG_NVRAM)) {
11887                 ret = tg3_nvram_write_block_using_eeprom(tp, offset, len, buf);
11888         } else {
11889                 u32 grc_mode;
11890
11891                 ret = tg3_nvram_lock(tp);
11892                 if (ret)
11893                         return ret;
11894
11895                 tg3_enable_nvram_access(tp);
11896                 if ((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
11897                     !(tp->tg3_flags3 & TG3_FLG3_PROTECTED_NVRAM))
11898                         tw32(NVRAM_WRITE1, 0x406);
11899
11900                 grc_mode = tr32(GRC_MODE);
11901                 tw32(GRC_MODE, grc_mode | GRC_MODE_NVRAM_WR_ENABLE);
11902
11903                 if ((tp->tg3_flags & TG3_FLAG_NVRAM_BUFFERED) ||
11904                         !(tp->tg3_flags2 & TG3_FLG2_FLASH)) {
11905
11906                         ret = tg3_nvram_write_block_buffered(tp, offset, len,
11907                                 buf);
11908                 } else {
11909                         ret = tg3_nvram_write_block_unbuffered(tp, offset, len,
11910                                 buf);
11911                 }
11912
11913                 grc_mode = tr32(GRC_MODE);
11914                 tw32(GRC_MODE, grc_mode & ~GRC_MODE_NVRAM_WR_ENABLE);
11915
11916                 tg3_disable_nvram_access(tp);
11917                 tg3_nvram_unlock(tp);
11918         }
11919
11920         if (tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT) {
11921                 tw32_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl);
11922                 udelay(40);
11923         }
11924
11925         return ret;
11926 }
11927
11928 struct subsys_tbl_ent {
11929         u16 subsys_vendor, subsys_devid;
11930         u32 phy_id;
11931 };
11932
11933 static struct subsys_tbl_ent subsys_id_to_phy_id[] __devinitdata = {
11934         /* Broadcom boards. */
11935         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11936           TG3PCI_SUBDEVICE_ID_BROADCOM_95700A6, TG3_PHY_ID_BCM5401 },
11937         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11938           TG3PCI_SUBDEVICE_ID_BROADCOM_95701A5, TG3_PHY_ID_BCM5701 },
11939         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11940           TG3PCI_SUBDEVICE_ID_BROADCOM_95700T6, TG3_PHY_ID_BCM8002 },
11941         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11942           TG3PCI_SUBDEVICE_ID_BROADCOM_95700A9, 0 },
11943         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11944           TG3PCI_SUBDEVICE_ID_BROADCOM_95701T1, TG3_PHY_ID_BCM5701 },
11945         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11946           TG3PCI_SUBDEVICE_ID_BROADCOM_95701T8, TG3_PHY_ID_BCM5701 },
11947         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11948           TG3PCI_SUBDEVICE_ID_BROADCOM_95701A7, 0 },
11949         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11950           TG3PCI_SUBDEVICE_ID_BROADCOM_95701A10, TG3_PHY_ID_BCM5701 },
11951         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11952           TG3PCI_SUBDEVICE_ID_BROADCOM_95701A12, TG3_PHY_ID_BCM5701 },
11953         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11954           TG3PCI_SUBDEVICE_ID_BROADCOM_95703AX1, TG3_PHY_ID_BCM5703 },
11955         { TG3PCI_SUBVENDOR_ID_BROADCOM,
11956           TG3PCI_SUBDEVICE_ID_BROADCOM_95703AX2, TG3_PHY_ID_BCM5703 },
11957
11958         /* 3com boards. */
11959         { TG3PCI_SUBVENDOR_ID_3COM,
11960           TG3PCI_SUBDEVICE_ID_3COM_3C996T, TG3_PHY_ID_BCM5401 },
11961         { TG3PCI_SUBVENDOR_ID_3COM,
11962           TG3PCI_SUBDEVICE_ID_3COM_3C996BT, TG3_PHY_ID_BCM5701 },
11963         { TG3PCI_SUBVENDOR_ID_3COM,
11964           TG3PCI_SUBDEVICE_ID_3COM_3C996SX, 0 },
11965         { TG3PCI_SUBVENDOR_ID_3COM,
11966           TG3PCI_SUBDEVICE_ID_3COM_3C1000T, TG3_PHY_ID_BCM5701 },
11967         { TG3PCI_SUBVENDOR_ID_3COM,
11968           TG3PCI_SUBDEVICE_ID_3COM_3C940BR01, TG3_PHY_ID_BCM5701 },
11969
11970         /* DELL boards. */
11971         { TG3PCI_SUBVENDOR_ID_DELL,
11972           TG3PCI_SUBDEVICE_ID_DELL_VIPER, TG3_PHY_ID_BCM5401 },
11973         { TG3PCI_SUBVENDOR_ID_DELL,
11974           TG3PCI_SUBDEVICE_ID_DELL_JAGUAR, TG3_PHY_ID_BCM5401 },
11975         { TG3PCI_SUBVENDOR_ID_DELL,
11976           TG3PCI_SUBDEVICE_ID_DELL_MERLOT, TG3_PHY_ID_BCM5411 },
11977         { TG3PCI_SUBVENDOR_ID_DELL,
11978           TG3PCI_SUBDEVICE_ID_DELL_SLIM_MERLOT, TG3_PHY_ID_BCM5411 },
11979
11980         /* Compaq boards. */
11981         { TG3PCI_SUBVENDOR_ID_COMPAQ,
11982           TG3PCI_SUBDEVICE_ID_COMPAQ_BANSHEE, TG3_PHY_ID_BCM5701 },
11983         { TG3PCI_SUBVENDOR_ID_COMPAQ,
11984           TG3PCI_SUBDEVICE_ID_COMPAQ_BANSHEE_2, TG3_PHY_ID_BCM5701 },
11985         { TG3PCI_SUBVENDOR_ID_COMPAQ,
11986           TG3PCI_SUBDEVICE_ID_COMPAQ_CHANGELING, 0 },
11987         { TG3PCI_SUBVENDOR_ID_COMPAQ,
11988           TG3PCI_SUBDEVICE_ID_COMPAQ_NC7780, TG3_PHY_ID_BCM5701 },
11989         { TG3PCI_SUBVENDOR_ID_COMPAQ,
11990           TG3PCI_SUBDEVICE_ID_COMPAQ_NC7780_2, TG3_PHY_ID_BCM5701 },
11991
11992         /* IBM boards. */
11993         { TG3PCI_SUBVENDOR_ID_IBM,
11994           TG3PCI_SUBDEVICE_ID_IBM_5703SAX2, 0 }
11995 };
11996
11997 static struct subsys_tbl_ent * __devinit tg3_lookup_by_subsys(struct tg3 *tp)
11998 {
11999         int i;
12000
12001         for (i = 0; i < ARRAY_SIZE(subsys_id_to_phy_id); i++) {
12002                 if ((subsys_id_to_phy_id[i].subsys_vendor ==
12003                      tp->pdev->subsystem_vendor) &&
12004                     (subsys_id_to_phy_id[i].subsys_devid ==
12005                      tp->pdev->subsystem_device))
12006                         return &subsys_id_to_phy_id[i];
12007         }
12008         return NULL;
12009 }
12010
12011 static void __devinit tg3_get_eeprom_hw_cfg(struct tg3 *tp)
12012 {
12013         u32 val;
12014         u16 pmcsr;
12015
12016         /* On some early chips the SRAM cannot be accessed in D3hot state,
12017          * so need make sure we're in D0.
12018          */
12019         pci_read_config_word(tp->pdev, tp->pm_cap + PCI_PM_CTRL, &pmcsr);
12020         pmcsr &= ~PCI_PM_CTRL_STATE_MASK;
12021         pci_write_config_word(tp->pdev, tp->pm_cap + PCI_PM_CTRL, pmcsr);
12022         msleep(1);
12023
12024         /* Make sure register accesses (indirect or otherwise)
12025          * will function correctly.
12026          */
12027         pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
12028                                tp->misc_host_ctrl);
12029
12030         /* The memory arbiter has to be enabled in order for SRAM accesses
12031          * to succeed.  Normally on powerup the tg3 chip firmware will make
12032          * sure it is enabled, but other entities such as system netboot
12033          * code might disable it.
12034          */
12035         val = tr32(MEMARB_MODE);
12036         tw32(MEMARB_MODE, val | MEMARB_MODE_ENABLE);
12037
12038         tp->phy_id = TG3_PHY_ID_INVALID;
12039         tp->led_ctrl = LED_CTRL_MODE_PHY_1;
12040
12041         /* Assume an onboard device and WOL capable by default.  */
12042         tp->tg3_flags |= TG3_FLAG_EEPROM_WRITE_PROT | TG3_FLAG_WOL_CAP;
12043
12044         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
12045                 if (!(tr32(PCIE_TRANSACTION_CFG) & PCIE_TRANS_CFG_LOM)) {
12046                         tp->tg3_flags &= ~TG3_FLAG_EEPROM_WRITE_PROT;
12047                         tp->tg3_flags2 |= TG3_FLG2_IS_NIC;
12048                 }
12049                 val = tr32(VCPU_CFGSHDW);
12050                 if (val & VCPU_CFGSHDW_ASPM_DBNC)
12051                         tp->tg3_flags |= TG3_FLAG_ASPM_WORKAROUND;
12052                 if ((val & VCPU_CFGSHDW_WOL_ENABLE) &&
12053                     (val & VCPU_CFGSHDW_WOL_MAGPKT))
12054                         tp->tg3_flags |= TG3_FLAG_WOL_ENABLE;
12055                 goto done;
12056         }
12057
12058         tg3_read_mem(tp, NIC_SRAM_DATA_SIG, &val);
12059         if (val == NIC_SRAM_DATA_SIG_MAGIC) {
12060                 u32 nic_cfg, led_cfg;
12061                 u32 nic_phy_id, ver, cfg2 = 0, cfg4 = 0, eeprom_phy_id;
12062                 int eeprom_phy_serdes = 0;
12063
12064                 tg3_read_mem(tp, NIC_SRAM_DATA_CFG, &nic_cfg);
12065                 tp->nic_sram_data_cfg = nic_cfg;
12066
12067                 tg3_read_mem(tp, NIC_SRAM_DATA_VER, &ver);
12068                 ver >>= NIC_SRAM_DATA_VER_SHIFT;
12069                 if ((GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700) &&
12070                     (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701) &&
12071                     (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5703) &&
12072                     (ver > 0) && (ver < 0x100))
12073                         tg3_read_mem(tp, NIC_SRAM_DATA_CFG_2, &cfg2);
12074
12075                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785)
12076                         tg3_read_mem(tp, NIC_SRAM_DATA_CFG_4, &cfg4);
12077
12078                 if ((nic_cfg & NIC_SRAM_DATA_CFG_PHY_TYPE_MASK) ==
12079                     NIC_SRAM_DATA_CFG_PHY_TYPE_FIBER)
12080                         eeprom_phy_serdes = 1;
12081
12082                 tg3_read_mem(tp, NIC_SRAM_DATA_PHY_ID, &nic_phy_id);
12083                 if (nic_phy_id != 0) {
12084                         u32 id1 = nic_phy_id & NIC_SRAM_DATA_PHY_ID1_MASK;
12085                         u32 id2 = nic_phy_id & NIC_SRAM_DATA_PHY_ID2_MASK;
12086
12087                         eeprom_phy_id  = (id1 >> 16) << 10;
12088                         eeprom_phy_id |= (id2 & 0xfc00) << 16;
12089                         eeprom_phy_id |= (id2 & 0x03ff) <<  0;
12090                 } else
12091                         eeprom_phy_id = 0;
12092
12093                 tp->phy_id = eeprom_phy_id;
12094                 if (eeprom_phy_serdes) {
12095                         if ((tp->tg3_flags2 & TG3_FLG2_5780_CLASS) ||
12096                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717)
12097                                 tp->tg3_flags2 |= TG3_FLG2_MII_SERDES;
12098                         else
12099                                 tp->tg3_flags2 |= TG3_FLG2_PHY_SERDES;
12100                 }
12101
12102                 if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS)
12103                         led_cfg = cfg2 & (NIC_SRAM_DATA_CFG_LED_MODE_MASK |
12104                                     SHASTA_EXT_LED_MODE_MASK);
12105                 else
12106                         led_cfg = nic_cfg & NIC_SRAM_DATA_CFG_LED_MODE_MASK;
12107
12108                 switch (led_cfg) {
12109                 default:
12110                 case NIC_SRAM_DATA_CFG_LED_MODE_PHY_1:
12111                         tp->led_ctrl = LED_CTRL_MODE_PHY_1;
12112                         break;
12113
12114                 case NIC_SRAM_DATA_CFG_LED_MODE_PHY_2:
12115                         tp->led_ctrl = LED_CTRL_MODE_PHY_2;
12116                         break;
12117
12118                 case NIC_SRAM_DATA_CFG_LED_MODE_MAC:
12119                         tp->led_ctrl = LED_CTRL_MODE_MAC;
12120
12121                         /* Default to PHY_1_MODE if 0 (MAC_MODE) is
12122                          * read on some older 5700/5701 bootcode.
12123                          */
12124                         if (GET_ASIC_REV(tp->pci_chip_rev_id) ==
12125                             ASIC_REV_5700 ||
12126                             GET_ASIC_REV(tp->pci_chip_rev_id) ==
12127                             ASIC_REV_5701)
12128                                 tp->led_ctrl = LED_CTRL_MODE_PHY_1;
12129
12130                         break;
12131
12132                 case SHASTA_EXT_LED_SHARED:
12133                         tp->led_ctrl = LED_CTRL_MODE_SHARED;
12134                         if (tp->pci_chip_rev_id != CHIPREV_ID_5750_A0 &&
12135                             tp->pci_chip_rev_id != CHIPREV_ID_5750_A1)
12136                                 tp->led_ctrl |= (LED_CTRL_MODE_PHY_1 |
12137                                                  LED_CTRL_MODE_PHY_2);
12138                         break;
12139
12140                 case SHASTA_EXT_LED_MAC:
12141                         tp->led_ctrl = LED_CTRL_MODE_SHASTA_MAC;
12142                         break;
12143
12144                 case SHASTA_EXT_LED_COMBO:
12145                         tp->led_ctrl = LED_CTRL_MODE_COMBO;
12146                         if (tp->pci_chip_rev_id != CHIPREV_ID_5750_A0)
12147                                 tp->led_ctrl |= (LED_CTRL_MODE_PHY_1 |
12148                                                  LED_CTRL_MODE_PHY_2);
12149                         break;
12150
12151                 }
12152
12153                 if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
12154                      GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) &&
12155                     tp->pdev->subsystem_vendor == PCI_VENDOR_ID_DELL)
12156                         tp->led_ctrl = LED_CTRL_MODE_PHY_2;
12157
12158                 if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX)
12159                         tp->led_ctrl = LED_CTRL_MODE_PHY_1;
12160
12161                 if (nic_cfg & NIC_SRAM_DATA_CFG_EEPROM_WP) {
12162                         tp->tg3_flags |= TG3_FLAG_EEPROM_WRITE_PROT;
12163                         if ((tp->pdev->subsystem_vendor ==
12164                              PCI_VENDOR_ID_ARIMA) &&
12165                             (tp->pdev->subsystem_device == 0x205a ||
12166                              tp->pdev->subsystem_device == 0x2063))
12167                                 tp->tg3_flags &= ~TG3_FLAG_EEPROM_WRITE_PROT;
12168                 } else {
12169                         tp->tg3_flags &= ~TG3_FLAG_EEPROM_WRITE_PROT;
12170                         tp->tg3_flags2 |= TG3_FLG2_IS_NIC;
12171                 }
12172
12173                 if (nic_cfg & NIC_SRAM_DATA_CFG_ASF_ENABLE) {
12174                         tp->tg3_flags |= TG3_FLAG_ENABLE_ASF;
12175                         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS)
12176                                 tp->tg3_flags2 |= TG3_FLG2_ASF_NEW_HANDSHAKE;
12177                 }
12178
12179                 if ((nic_cfg & NIC_SRAM_DATA_CFG_APE_ENABLE) &&
12180                         (tp->tg3_flags2 & TG3_FLG2_5750_PLUS))
12181                         tp->tg3_flags3 |= TG3_FLG3_ENABLE_APE;
12182
12183                 if (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES &&
12184                     !(nic_cfg & NIC_SRAM_DATA_CFG_FIBER_WOL))
12185                         tp->tg3_flags &= ~TG3_FLAG_WOL_CAP;
12186
12187                 if ((tp->tg3_flags & TG3_FLAG_WOL_CAP) &&
12188                     (nic_cfg & NIC_SRAM_DATA_CFG_WOL_ENABLE))
12189                         tp->tg3_flags |= TG3_FLAG_WOL_ENABLE;
12190
12191                 if (cfg2 & (1 << 17))
12192                         tp->tg3_flags2 |= TG3_FLG2_CAPACITIVE_COUPLING;
12193
12194                 /* serdes signal pre-emphasis in register 0x590 set by */
12195                 /* bootcode if bit 18 is set */
12196                 if (cfg2 & (1 << 18))
12197                         tp->tg3_flags2 |= TG3_FLG2_SERDES_PREEMPHASIS;
12198
12199                 if (((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
12200                       GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX)) &&
12201                     (cfg2 & NIC_SRAM_DATA_CFG_2_APD_EN))
12202                         tp->tg3_flags3 |= TG3_FLG3_PHY_ENABLE_APD;
12203
12204                 if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
12205                         u32 cfg3;
12206
12207                         tg3_read_mem(tp, NIC_SRAM_DATA_CFG_3, &cfg3);
12208                         if (cfg3 & NIC_SRAM_ASPM_DEBOUNCE)
12209                                 tp->tg3_flags |= TG3_FLAG_ASPM_WORKAROUND;
12210                 }
12211
12212                 if (cfg4 & NIC_SRAM_RGMII_INBAND_DISABLE)
12213                         tp->tg3_flags3 |= TG3_FLG3_RGMII_INBAND_DISABLE;
12214                 if (cfg4 & NIC_SRAM_RGMII_EXT_IBND_RX_EN)
12215                         tp->tg3_flags3 |= TG3_FLG3_RGMII_EXT_IBND_RX_EN;
12216                 if (cfg4 & NIC_SRAM_RGMII_EXT_IBND_TX_EN)
12217                         tp->tg3_flags3 |= TG3_FLG3_RGMII_EXT_IBND_TX_EN;
12218         }
12219 done:
12220         device_init_wakeup(&tp->pdev->dev, tp->tg3_flags & TG3_FLAG_WOL_CAP);
12221         device_set_wakeup_enable(&tp->pdev->dev,
12222                                  tp->tg3_flags & TG3_FLAG_WOL_ENABLE);
12223 }
12224
12225 static int __devinit tg3_issue_otp_command(struct tg3 *tp, u32 cmd)
12226 {
12227         int i;
12228         u32 val;
12229
12230         tw32(OTP_CTRL, cmd | OTP_CTRL_OTP_CMD_START);
12231         tw32(OTP_CTRL, cmd);
12232
12233         /* Wait for up to 1 ms for command to execute. */
12234         for (i = 0; i < 100; i++) {
12235                 val = tr32(OTP_STATUS);
12236                 if (val & OTP_STATUS_CMD_DONE)
12237                         break;
12238                 udelay(10);
12239         }
12240
12241         return (val & OTP_STATUS_CMD_DONE) ? 0 : -EBUSY;
12242 }
12243
12244 /* Read the gphy configuration from the OTP region of the chip.  The gphy
12245  * configuration is a 32-bit value that straddles the alignment boundary.
12246  * We do two 32-bit reads and then shift and merge the results.
12247  */
12248 static u32 __devinit tg3_read_otp_phycfg(struct tg3 *tp)
12249 {
12250         u32 bhalf_otp, thalf_otp;
12251
12252         tw32(OTP_MODE, OTP_MODE_OTP_THRU_GRC);
12253
12254         if (tg3_issue_otp_command(tp, OTP_CTRL_OTP_CMD_INIT))
12255                 return 0;
12256
12257         tw32(OTP_ADDRESS, OTP_ADDRESS_MAGIC1);
12258
12259         if (tg3_issue_otp_command(tp, OTP_CTRL_OTP_CMD_READ))
12260                 return 0;
12261
12262         thalf_otp = tr32(OTP_READ_DATA);
12263
12264         tw32(OTP_ADDRESS, OTP_ADDRESS_MAGIC2);
12265
12266         if (tg3_issue_otp_command(tp, OTP_CTRL_OTP_CMD_READ))
12267                 return 0;
12268
12269         bhalf_otp = tr32(OTP_READ_DATA);
12270
12271         return ((thalf_otp & 0x0000ffff) << 16) | (bhalf_otp >> 16);
12272 }
12273
12274 static int __devinit tg3_phy_probe(struct tg3 *tp)
12275 {
12276         u32 hw_phy_id_1, hw_phy_id_2;
12277         u32 hw_phy_id, hw_phy_id_masked;
12278         int err;
12279
12280         if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB)
12281                 return tg3_phy_init(tp);
12282
12283         /* Reading the PHY ID register can conflict with ASF
12284          * firmware access to the PHY hardware.
12285          */
12286         err = 0;
12287         if ((tp->tg3_flags & TG3_FLAG_ENABLE_ASF) ||
12288             (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)) {
12289                 hw_phy_id = hw_phy_id_masked = TG3_PHY_ID_INVALID;
12290         } else {
12291                 /* Now read the physical PHY_ID from the chip and verify
12292                  * that it is sane.  If it doesn't look good, we fall back
12293                  * to either the hard-coded table based PHY_ID and failing
12294                  * that the value found in the eeprom area.
12295                  */
12296                 err |= tg3_readphy(tp, MII_PHYSID1, &hw_phy_id_1);
12297                 err |= tg3_readphy(tp, MII_PHYSID2, &hw_phy_id_2);
12298
12299                 hw_phy_id  = (hw_phy_id_1 & 0xffff) << 10;
12300                 hw_phy_id |= (hw_phy_id_2 & 0xfc00) << 16;
12301                 hw_phy_id |= (hw_phy_id_2 & 0x03ff) <<  0;
12302
12303                 hw_phy_id_masked = hw_phy_id & TG3_PHY_ID_MASK;
12304         }
12305
12306         if (!err && TG3_KNOWN_PHY_ID(hw_phy_id_masked)) {
12307                 tp->phy_id = hw_phy_id;
12308                 if (hw_phy_id_masked == TG3_PHY_ID_BCM8002)
12309                         tp->tg3_flags2 |= TG3_FLG2_PHY_SERDES;
12310                 else
12311                         tp->tg3_flags2 &= ~TG3_FLG2_PHY_SERDES;
12312         } else {
12313                 if (tp->phy_id != TG3_PHY_ID_INVALID) {
12314                         /* Do nothing, phy ID already set up in
12315                          * tg3_get_eeprom_hw_cfg().
12316                          */
12317                 } else {
12318                         struct subsys_tbl_ent *p;
12319
12320                         /* No eeprom signature?  Try the hardcoded
12321                          * subsys device table.
12322                          */
12323                         p = tg3_lookup_by_subsys(tp);
12324                         if (!p)
12325                                 return -ENODEV;
12326
12327                         tp->phy_id = p->phy_id;
12328                         if (!tp->phy_id ||
12329                             tp->phy_id == TG3_PHY_ID_BCM8002)
12330                                 tp->tg3_flags2 |= TG3_FLG2_PHY_SERDES;
12331                 }
12332         }
12333
12334         if (!(tp->tg3_flags2 & TG3_FLG2_ANY_SERDES) &&
12335             !(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) &&
12336             !(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)) {
12337                 u32 bmsr, adv_reg, tg3_ctrl, mask;
12338
12339                 tg3_readphy(tp, MII_BMSR, &bmsr);
12340                 if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
12341                     (bmsr & BMSR_LSTATUS))
12342                         goto skip_phy_reset;
12343
12344                 err = tg3_phy_reset(tp);
12345                 if (err)
12346                         return err;
12347
12348                 adv_reg = (ADVERTISE_10HALF | ADVERTISE_10FULL |
12349                            ADVERTISE_100HALF | ADVERTISE_100FULL |
12350                            ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
12351                 tg3_ctrl = 0;
12352                 if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY)) {
12353                         tg3_ctrl = (MII_TG3_CTRL_ADV_1000_HALF |
12354                                     MII_TG3_CTRL_ADV_1000_FULL);
12355                         if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
12356                             tp->pci_chip_rev_id == CHIPREV_ID_5701_B0)
12357                                 tg3_ctrl |= (MII_TG3_CTRL_AS_MASTER |
12358                                              MII_TG3_CTRL_ENABLE_AS_MASTER);
12359                 }
12360
12361                 mask = (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full |
12362                         ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full |
12363                         ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full);
12364                 if (!tg3_copper_is_advertising_all(tp, mask)) {
12365                         tg3_writephy(tp, MII_ADVERTISE, adv_reg);
12366
12367                         if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY))
12368                                 tg3_writephy(tp, MII_TG3_CTRL, tg3_ctrl);
12369
12370                         tg3_writephy(tp, MII_BMCR,
12371                                      BMCR_ANENABLE | BMCR_ANRESTART);
12372                 }
12373                 tg3_phy_set_wirespeed(tp);
12374
12375                 tg3_writephy(tp, MII_ADVERTISE, adv_reg);
12376                 if (!(tp->tg3_flags & TG3_FLAG_10_100_ONLY))
12377                         tg3_writephy(tp, MII_TG3_CTRL, tg3_ctrl);
12378         }
12379
12380 skip_phy_reset:
12381         if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5401) {
12382                 err = tg3_init_5401phy_dsp(tp);
12383                 if (err)
12384                         return err;
12385
12386                 err = tg3_init_5401phy_dsp(tp);
12387         }
12388
12389         if (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES)
12390                 tp->link_config.advertising =
12391                         (ADVERTISED_1000baseT_Half |
12392                          ADVERTISED_1000baseT_Full |
12393                          ADVERTISED_Autoneg |
12394                          ADVERTISED_FIBRE);
12395         if (tp->tg3_flags & TG3_FLAG_10_100_ONLY)
12396                 tp->link_config.advertising &=
12397                         ~(ADVERTISED_1000baseT_Half |
12398                           ADVERTISED_1000baseT_Full);
12399
12400         return err;
12401 }
12402
12403 static void __devinit tg3_read_vpd(struct tg3 *tp)
12404 {
12405         u8 vpd_data[TG3_NVM_VPD_LEN];
12406         unsigned int block_end, rosize, len;
12407         int j, i = 0;
12408         u32 magic;
12409
12410         if ((tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) ||
12411             tg3_nvram_read(tp, 0x0, &magic))
12412                 goto out_not_found;
12413
12414         if (magic == TG3_EEPROM_MAGIC) {
12415                 for (i = 0; i < TG3_NVM_VPD_LEN; i += 4) {
12416                         u32 tmp;
12417
12418                         /* The data is in little-endian format in NVRAM.
12419                          * Use the big-endian read routines to preserve
12420                          * the byte order as it exists in NVRAM.
12421                          */
12422                         if (tg3_nvram_read_be32(tp, TG3_NVM_VPD_OFF + i, &tmp))
12423                                 goto out_not_found;
12424
12425                         memcpy(&vpd_data[i], &tmp, sizeof(tmp));
12426                 }
12427         } else {
12428                 ssize_t cnt;
12429                 unsigned int pos = 0;
12430
12431                 for (; pos < TG3_NVM_VPD_LEN && i < 3; i++, pos += cnt) {
12432                         cnt = pci_read_vpd(tp->pdev, pos,
12433                                            TG3_NVM_VPD_LEN - pos,
12434                                            &vpd_data[pos]);
12435                         if (cnt == -ETIMEDOUT || -EINTR)
12436                                 cnt = 0;
12437                         else if (cnt < 0)
12438                                 goto out_not_found;
12439                 }
12440                 if (pos != TG3_NVM_VPD_LEN)
12441                         goto out_not_found;
12442         }
12443
12444         i = pci_vpd_find_tag(vpd_data, 0, TG3_NVM_VPD_LEN,
12445                              PCI_VPD_LRDT_RO_DATA);
12446         if (i < 0)
12447                 goto out_not_found;
12448
12449         rosize = pci_vpd_lrdt_size(&vpd_data[i]);
12450         block_end = i + PCI_VPD_LRDT_TAG_SIZE + rosize;
12451         i += PCI_VPD_LRDT_TAG_SIZE;
12452
12453         if (block_end > TG3_NVM_VPD_LEN)
12454                 goto out_not_found;
12455
12456         j = pci_vpd_find_info_keyword(vpd_data, i, rosize,
12457                                       PCI_VPD_RO_KEYWORD_MFR_ID);
12458         if (j > 0) {
12459                 len = pci_vpd_info_field_size(&vpd_data[j]);
12460
12461                 j += PCI_VPD_INFO_FLD_HDR_SIZE;
12462                 if (j + len > block_end || len != 4 ||
12463                     memcmp(&vpd_data[j], "1028", 4))
12464                         goto partno;
12465
12466                 j = pci_vpd_find_info_keyword(vpd_data, i, rosize,
12467                                               PCI_VPD_RO_KEYWORD_VENDOR0);
12468                 if (j < 0)
12469                         goto partno;
12470
12471                 len = pci_vpd_info_field_size(&vpd_data[j]);
12472
12473                 j += PCI_VPD_INFO_FLD_HDR_SIZE;
12474                 if (j + len > block_end)
12475                         goto partno;
12476
12477                 memcpy(tp->fw_ver, &vpd_data[j], len);
12478                 strncat(tp->fw_ver, " bc ", TG3_NVM_VPD_LEN - len - 1);
12479         }
12480
12481 partno:
12482         i = pci_vpd_find_info_keyword(vpd_data, i, rosize,
12483                                       PCI_VPD_RO_KEYWORD_PARTNO);
12484         if (i < 0)
12485                 goto out_not_found;
12486
12487         len = pci_vpd_info_field_size(&vpd_data[i]);
12488
12489         i += PCI_VPD_INFO_FLD_HDR_SIZE;
12490         if (len > TG3_BPN_SIZE ||
12491             (len + i) > TG3_NVM_VPD_LEN)
12492                 goto out_not_found;
12493
12494         memcpy(tp->board_part_number, &vpd_data[i], len);
12495
12496         return;
12497
12498 out_not_found:
12499         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
12500                 strcpy(tp->board_part_number, "BCM95906");
12501         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 &&
12502                  tp->pdev->device == TG3PCI_DEVICE_TIGON3_57780)
12503                 strcpy(tp->board_part_number, "BCM57780");
12504         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 &&
12505                  tp->pdev->device == TG3PCI_DEVICE_TIGON3_57760)
12506                 strcpy(tp->board_part_number, "BCM57760");
12507         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 &&
12508                  tp->pdev->device == TG3PCI_DEVICE_TIGON3_57790)
12509                 strcpy(tp->board_part_number, "BCM57790");
12510         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 &&
12511                  tp->pdev->device == TG3PCI_DEVICE_TIGON3_57788)
12512                 strcpy(tp->board_part_number, "BCM57788");
12513         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765 &&
12514                  tp->pdev->device == TG3PCI_DEVICE_TIGON3_57761)
12515                 strcpy(tp->board_part_number, "BCM57761");
12516         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765 &&
12517                  tp->pdev->device == TG3PCI_DEVICE_TIGON3_57765)
12518                 strcpy(tp->board_part_number, "BCM57765");
12519         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765 &&
12520                  tp->pdev->device == TG3PCI_DEVICE_TIGON3_57781)
12521                 strcpy(tp->board_part_number, "BCM57781");
12522         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765 &&
12523                  tp->pdev->device == TG3PCI_DEVICE_TIGON3_57785)
12524                 strcpy(tp->board_part_number, "BCM57785");
12525         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765 &&
12526                  tp->pdev->device == TG3PCI_DEVICE_TIGON3_57791)
12527                 strcpy(tp->board_part_number, "BCM57791");
12528         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765 &&
12529                  tp->pdev->device == TG3PCI_DEVICE_TIGON3_57795)
12530                 strcpy(tp->board_part_number, "BCM57795");
12531         else
12532                 strcpy(tp->board_part_number, "none");
12533 }
12534
12535 static int __devinit tg3_fw_img_is_valid(struct tg3 *tp, u32 offset)
12536 {
12537         u32 val;
12538
12539         if (tg3_nvram_read(tp, offset, &val) ||
12540             (val & 0xfc000000) != 0x0c000000 ||
12541             tg3_nvram_read(tp, offset + 4, &val) ||
12542             val != 0)
12543                 return 0;
12544
12545         return 1;
12546 }
12547
12548 static void __devinit tg3_read_bc_ver(struct tg3 *tp)
12549 {
12550         u32 val, offset, start, ver_offset;
12551         int i, dst_off;
12552         bool newver = false;
12553
12554         if (tg3_nvram_read(tp, 0xc, &offset) ||
12555             tg3_nvram_read(tp, 0x4, &start))
12556                 return;
12557
12558         offset = tg3_nvram_logical_addr(tp, offset);
12559
12560         if (tg3_nvram_read(tp, offset, &val))
12561                 return;
12562
12563         if ((val & 0xfc000000) == 0x0c000000) {
12564                 if (tg3_nvram_read(tp, offset + 4, &val))
12565                         return;
12566
12567                 if (val == 0)
12568                         newver = true;
12569         }
12570
12571         dst_off = strlen(tp->fw_ver);
12572
12573         if (newver) {
12574                 if (TG3_VER_SIZE - dst_off < 16 ||
12575                     tg3_nvram_read(tp, offset + 8, &ver_offset))
12576                         return;
12577
12578                 offset = offset + ver_offset - start;
12579                 for (i = 0; i < 16; i += 4) {
12580                         __be32 v;
12581                         if (tg3_nvram_read_be32(tp, offset + i, &v))
12582                                 return;
12583
12584                         memcpy(tp->fw_ver + dst_off + i, &v, sizeof(v));
12585                 }
12586         } else {
12587                 u32 major, minor;
12588
12589                 if (tg3_nvram_read(tp, TG3_NVM_PTREV_BCVER, &ver_offset))
12590                         return;
12591
12592                 major = (ver_offset & TG3_NVM_BCVER_MAJMSK) >>
12593                         TG3_NVM_BCVER_MAJSFT;
12594                 minor = ver_offset & TG3_NVM_BCVER_MINMSK;
12595                 snprintf(&tp->fw_ver[dst_off], TG3_VER_SIZE - dst_off,
12596                          "v%d.%02d", major, minor);
12597         }
12598 }
12599
12600 static void __devinit tg3_read_hwsb_ver(struct tg3 *tp)
12601 {
12602         u32 val, major, minor;
12603
12604         /* Use native endian representation */
12605         if (tg3_nvram_read(tp, TG3_NVM_HWSB_CFG1, &val))
12606                 return;
12607
12608         major = (val & TG3_NVM_HWSB_CFG1_MAJMSK) >>
12609                 TG3_NVM_HWSB_CFG1_MAJSFT;
12610         minor = (val & TG3_NVM_HWSB_CFG1_MINMSK) >>
12611                 TG3_NVM_HWSB_CFG1_MINSFT;
12612
12613         snprintf(&tp->fw_ver[0], 32, "sb v%d.%02d", major, minor);
12614 }
12615
12616 static void __devinit tg3_read_sb_ver(struct tg3 *tp, u32 val)
12617 {
12618         u32 offset, major, minor, build;
12619
12620         strncat(tp->fw_ver, "sb", TG3_VER_SIZE - strlen(tp->fw_ver) - 1);
12621
12622         if ((val & TG3_EEPROM_SB_FORMAT_MASK) != TG3_EEPROM_SB_FORMAT_1)
12623                 return;
12624
12625         switch (val & TG3_EEPROM_SB_REVISION_MASK) {
12626         case TG3_EEPROM_SB_REVISION_0:
12627                 offset = TG3_EEPROM_SB_F1R0_EDH_OFF;
12628                 break;
12629         case TG3_EEPROM_SB_REVISION_2:
12630                 offset = TG3_EEPROM_SB_F1R2_EDH_OFF;
12631                 break;
12632         case TG3_EEPROM_SB_REVISION_3:
12633                 offset = TG3_EEPROM_SB_F1R3_EDH_OFF;
12634                 break;
12635         case TG3_EEPROM_SB_REVISION_4:
12636                 offset = TG3_EEPROM_SB_F1R4_EDH_OFF;
12637                 break;
12638         case TG3_EEPROM_SB_REVISION_5:
12639                 offset = TG3_EEPROM_SB_F1R5_EDH_OFF;
12640                 break;
12641         default:
12642                 return;
12643         }
12644
12645         if (tg3_nvram_read(tp, offset, &val))
12646                 return;
12647
12648         build = (val & TG3_EEPROM_SB_EDH_BLD_MASK) >>
12649                 TG3_EEPROM_SB_EDH_BLD_SHFT;
12650         major = (val & TG3_EEPROM_SB_EDH_MAJ_MASK) >>
12651                 TG3_EEPROM_SB_EDH_MAJ_SHFT;
12652         minor =  val & TG3_EEPROM_SB_EDH_MIN_MASK;
12653
12654         if (minor > 99 || build > 26)
12655                 return;
12656
12657         offset = strlen(tp->fw_ver);
12658         snprintf(&tp->fw_ver[offset], TG3_VER_SIZE - offset,
12659                  " v%d.%02d", major, minor);
12660
12661         if (build > 0) {
12662                 offset = strlen(tp->fw_ver);
12663                 if (offset < TG3_VER_SIZE - 1)
12664                         tp->fw_ver[offset] = 'a' + build - 1;
12665         }
12666 }
12667
12668 static void __devinit tg3_read_mgmtfw_ver(struct tg3 *tp)
12669 {
12670         u32 val, offset, start;
12671         int i, vlen;
12672
12673         for (offset = TG3_NVM_DIR_START;
12674              offset < TG3_NVM_DIR_END;
12675              offset += TG3_NVM_DIRENT_SIZE) {
12676                 if (tg3_nvram_read(tp, offset, &val))
12677                         return;
12678
12679                 if ((val >> TG3_NVM_DIRTYPE_SHIFT) == TG3_NVM_DIRTYPE_ASFINI)
12680                         break;
12681         }
12682
12683         if (offset == TG3_NVM_DIR_END)
12684                 return;
12685
12686         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS))
12687                 start = 0x08000000;
12688         else if (tg3_nvram_read(tp, offset - 4, &start))
12689                 return;
12690
12691         if (tg3_nvram_read(tp, offset + 4, &offset) ||
12692             !tg3_fw_img_is_valid(tp, offset) ||
12693             tg3_nvram_read(tp, offset + 8, &val))
12694                 return;
12695
12696         offset += val - start;
12697
12698         vlen = strlen(tp->fw_ver);
12699
12700         tp->fw_ver[vlen++] = ',';
12701         tp->fw_ver[vlen++] = ' ';
12702
12703         for (i = 0; i < 4; i++) {
12704                 __be32 v;
12705                 if (tg3_nvram_read_be32(tp, offset, &v))
12706                         return;
12707
12708                 offset += sizeof(v);
12709
12710                 if (vlen > TG3_VER_SIZE - sizeof(v)) {
12711                         memcpy(&tp->fw_ver[vlen], &v, TG3_VER_SIZE - vlen);
12712                         break;
12713                 }
12714
12715                 memcpy(&tp->fw_ver[vlen], &v, sizeof(v));
12716                 vlen += sizeof(v);
12717         }
12718 }
12719
12720 static void __devinit tg3_read_dash_ver(struct tg3 *tp)
12721 {
12722         int vlen;
12723         u32 apedata;
12724
12725         if (!(tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) ||
12726             !(tp->tg3_flags  & TG3_FLAG_ENABLE_ASF))
12727                 return;
12728
12729         apedata = tg3_ape_read32(tp, TG3_APE_SEG_SIG);
12730         if (apedata != APE_SEG_SIG_MAGIC)
12731                 return;
12732
12733         apedata = tg3_ape_read32(tp, TG3_APE_FW_STATUS);
12734         if (!(apedata & APE_FW_STATUS_READY))
12735                 return;
12736
12737         apedata = tg3_ape_read32(tp, TG3_APE_FW_VERSION);
12738
12739         vlen = strlen(tp->fw_ver);
12740
12741         snprintf(&tp->fw_ver[vlen], TG3_VER_SIZE - vlen, " DASH v%d.%d.%d.%d",
12742                  (apedata & APE_FW_VERSION_MAJMSK) >> APE_FW_VERSION_MAJSFT,
12743                  (apedata & APE_FW_VERSION_MINMSK) >> APE_FW_VERSION_MINSFT,
12744                  (apedata & APE_FW_VERSION_REVMSK) >> APE_FW_VERSION_REVSFT,
12745                  (apedata & APE_FW_VERSION_BLDMSK));
12746 }
12747
12748 static void __devinit tg3_read_fw_ver(struct tg3 *tp)
12749 {
12750         u32 val;
12751         bool vpd_vers = false;
12752
12753         if (tp->fw_ver[0] != 0)
12754                 vpd_vers = true;
12755
12756         if (tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) {
12757                 strcat(tp->fw_ver, "sb");
12758                 return;
12759         }
12760
12761         if (tg3_nvram_read(tp, 0, &val))
12762                 return;
12763
12764         if (val == TG3_EEPROM_MAGIC)
12765                 tg3_read_bc_ver(tp);
12766         else if ((val & TG3_EEPROM_MAGIC_FW_MSK) == TG3_EEPROM_MAGIC_FW)
12767                 tg3_read_sb_ver(tp, val);
12768         else if ((val & TG3_EEPROM_MAGIC_HW_MSK) == TG3_EEPROM_MAGIC_HW)
12769                 tg3_read_hwsb_ver(tp);
12770         else
12771                 return;
12772
12773         if (!(tp->tg3_flags & TG3_FLAG_ENABLE_ASF) ||
12774              (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) || vpd_vers)
12775                 goto done;
12776
12777         tg3_read_mgmtfw_ver(tp);
12778
12779 done:
12780         tp->fw_ver[TG3_VER_SIZE - 1] = 0;
12781 }
12782
12783 static struct pci_dev * __devinit tg3_find_peer(struct tg3 *);
12784
12785 static int __devinit tg3_get_invariants(struct tg3 *tp)
12786 {
12787         static struct pci_device_id write_reorder_chipsets[] = {
12788                 { PCI_DEVICE(PCI_VENDOR_ID_AMD,
12789                              PCI_DEVICE_ID_AMD_FE_GATE_700C) },
12790                 { PCI_DEVICE(PCI_VENDOR_ID_AMD,
12791                              PCI_DEVICE_ID_AMD_8131_BRIDGE) },
12792                 { PCI_DEVICE(PCI_VENDOR_ID_VIA,
12793                              PCI_DEVICE_ID_VIA_8385_0) },
12794                 { },
12795         };
12796         u32 misc_ctrl_reg;
12797         u32 pci_state_reg, grc_misc_cfg;
12798         u32 val;
12799         u16 pci_cmd;
12800         int err;
12801
12802         /* Force memory write invalidate off.  If we leave it on,
12803          * then on 5700_BX chips we have to enable a workaround.
12804          * The workaround is to set the TG3PCI_DMA_RW_CTRL boundary
12805          * to match the cacheline size.  The Broadcom driver have this
12806          * workaround but turns MWI off all the times so never uses
12807          * it.  This seems to suggest that the workaround is insufficient.
12808          */
12809         pci_read_config_word(tp->pdev, PCI_COMMAND, &pci_cmd);
12810         pci_cmd &= ~PCI_COMMAND_INVALIDATE;
12811         pci_write_config_word(tp->pdev, PCI_COMMAND, pci_cmd);
12812
12813         /* It is absolutely critical that TG3PCI_MISC_HOST_CTRL
12814          * has the register indirect write enable bit set before
12815          * we try to access any of the MMIO registers.  It is also
12816          * critical that the PCI-X hw workaround situation is decided
12817          * before that as well.
12818          */
12819         pci_read_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
12820                               &misc_ctrl_reg);
12821
12822         tp->pci_chip_rev_id = (misc_ctrl_reg >>
12823                                MISC_HOST_CTRL_CHIPREV_SHIFT);
12824         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_USE_PROD_ID_REG) {
12825                 u32 prod_id_asic_rev;
12826
12827                 if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_5717 ||
12828                     tp->pdev->device == TG3PCI_DEVICE_TIGON3_5718 ||
12829                     tp->pdev->device == TG3PCI_DEVICE_TIGON3_5724)
12830                         pci_read_config_dword(tp->pdev,
12831                                               TG3PCI_GEN2_PRODID_ASICREV,
12832                                               &prod_id_asic_rev);
12833                 else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57781 ||
12834                          tp->pdev->device == TG3PCI_DEVICE_TIGON3_57785 ||
12835                          tp->pdev->device == TG3PCI_DEVICE_TIGON3_57761 ||
12836                          tp->pdev->device == TG3PCI_DEVICE_TIGON3_57765 ||
12837                          tp->pdev->device == TG3PCI_DEVICE_TIGON3_57791 ||
12838                          tp->pdev->device == TG3PCI_DEVICE_TIGON3_57795)
12839                         pci_read_config_dword(tp->pdev,
12840                                               TG3PCI_GEN15_PRODID_ASICREV,
12841                                               &prod_id_asic_rev);
12842                 else
12843                         pci_read_config_dword(tp->pdev, TG3PCI_PRODID_ASICREV,
12844                                               &prod_id_asic_rev);
12845
12846                 tp->pci_chip_rev_id = prod_id_asic_rev;
12847         }
12848
12849         /* Wrong chip ID in 5752 A0. This code can be removed later
12850          * as A0 is not in production.
12851          */
12852         if (tp->pci_chip_rev_id == CHIPREV_ID_5752_A0_HW)
12853                 tp->pci_chip_rev_id = CHIPREV_ID_5752_A0;
12854
12855         /* If we have 5702/03 A1 or A2 on certain ICH chipsets,
12856          * we need to disable memory and use config. cycles
12857          * only to access all registers. The 5702/03 chips
12858          * can mistakenly decode the special cycles from the
12859          * ICH chipsets as memory write cycles, causing corruption
12860          * of register and memory space. Only certain ICH bridges
12861          * will drive special cycles with non-zero data during the
12862          * address phase which can fall within the 5703's address
12863          * range. This is not an ICH bug as the PCI spec allows
12864          * non-zero address during special cycles. However, only
12865          * these ICH bridges are known to drive non-zero addresses
12866          * during special cycles.
12867          *
12868          * Since special cycles do not cross PCI bridges, we only
12869          * enable this workaround if the 5703 is on the secondary
12870          * bus of these ICH bridges.
12871          */
12872         if ((tp->pci_chip_rev_id == CHIPREV_ID_5703_A1) ||
12873             (tp->pci_chip_rev_id == CHIPREV_ID_5703_A2)) {
12874                 static struct tg3_dev_id {
12875                         u32     vendor;
12876                         u32     device;
12877                         u32     rev;
12878                 } ich_chipsets[] = {
12879                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_8,
12880                           PCI_ANY_ID },
12881                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_8,
12882                           PCI_ANY_ID },
12883                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_11,
12884                           0xa },
12885                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_6,
12886                           PCI_ANY_ID },
12887                         { },
12888                 };
12889                 struct tg3_dev_id *pci_id = &ich_chipsets[0];
12890                 struct pci_dev *bridge = NULL;
12891
12892                 while (pci_id->vendor != 0) {
12893                         bridge = pci_get_device(pci_id->vendor, pci_id->device,
12894                                                 bridge);
12895                         if (!bridge) {
12896                                 pci_id++;
12897                                 continue;
12898                         }
12899                         if (pci_id->rev != PCI_ANY_ID) {
12900                                 if (bridge->revision > pci_id->rev)
12901                                         continue;
12902                         }
12903                         if (bridge->subordinate &&
12904                             (bridge->subordinate->number ==
12905                              tp->pdev->bus->number)) {
12906
12907                                 tp->tg3_flags2 |= TG3_FLG2_ICH_WORKAROUND;
12908                                 pci_dev_put(bridge);
12909                                 break;
12910                         }
12911                 }
12912         }
12913
12914         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)) {
12915                 static struct tg3_dev_id {
12916                         u32     vendor;
12917                         u32     device;
12918                 } bridge_chipsets[] = {
12919                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0 },
12920                         { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1 },
12921                         { },
12922                 };
12923                 struct tg3_dev_id *pci_id = &bridge_chipsets[0];
12924                 struct pci_dev *bridge = NULL;
12925
12926                 while (pci_id->vendor != 0) {
12927                         bridge = pci_get_device(pci_id->vendor,
12928                                                 pci_id->device,
12929                                                 bridge);
12930                         if (!bridge) {
12931                                 pci_id++;
12932                                 continue;
12933                         }
12934                         if (bridge->subordinate &&
12935                             (bridge->subordinate->number <=
12936                              tp->pdev->bus->number) &&
12937                             (bridge->subordinate->subordinate >=
12938                              tp->pdev->bus->number)) {
12939                                 tp->tg3_flags3 |= TG3_FLG3_5701_DMA_BUG;
12940                                 pci_dev_put(bridge);
12941                                 break;
12942                         }
12943                 }
12944         }
12945
12946         /* The EPB bridge inside 5714, 5715, and 5780 cannot support
12947          * DMA addresses > 40-bit. This bridge may have other additional
12948          * 57xx devices behind it in some 4-port NIC designs for example.
12949          * Any tg3 device found behind the bridge will also need the 40-bit
12950          * DMA workaround.
12951          */
12952         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780 ||
12953             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714) {
12954                 tp->tg3_flags2 |= TG3_FLG2_5780_CLASS;
12955                 tp->tg3_flags |= TG3_FLAG_40BIT_DMA_BUG;
12956                 tp->msi_cap = pci_find_capability(tp->pdev, PCI_CAP_ID_MSI);
12957         } else {
12958                 struct pci_dev *bridge = NULL;
12959
12960                 do {
12961                         bridge = pci_get_device(PCI_VENDOR_ID_SERVERWORKS,
12962                                                 PCI_DEVICE_ID_SERVERWORKS_EPB,
12963                                                 bridge);
12964                         if (bridge && bridge->subordinate &&
12965                             (bridge->subordinate->number <=
12966                              tp->pdev->bus->number) &&
12967                             (bridge->subordinate->subordinate >=
12968                              tp->pdev->bus->number)) {
12969                                 tp->tg3_flags |= TG3_FLAG_40BIT_DMA_BUG;
12970                                 pci_dev_put(bridge);
12971                                 break;
12972                         }
12973                 } while (bridge);
12974         }
12975
12976         /* Initialize misc host control in PCI block. */
12977         tp->misc_host_ctrl |= (misc_ctrl_reg &
12978                                MISC_HOST_CTRL_CHIPREV);
12979         pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
12980                                tp->misc_host_ctrl);
12981
12982         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
12983             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714 ||
12984             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717)
12985                 tp->pdev_peer = tg3_find_peer(tp);
12986
12987         /* Intentionally exclude ASIC_REV_5906 */
12988         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 ||
12989             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5787 ||
12990             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
12991             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
12992             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
12993             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 ||
12994             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
12995             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
12996                 tp->tg3_flags3 |= TG3_FLG3_5755_PLUS;
12997
12998         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750 ||
12999             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752 ||
13000             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906 ||
13001             (tp->tg3_flags3 & TG3_FLG3_5755_PLUS) ||
13002             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
13003                 tp->tg3_flags2 |= TG3_FLG2_5750_PLUS;
13004
13005         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) ||
13006             (tp->tg3_flags2 & TG3_FLG2_5750_PLUS))
13007                 tp->tg3_flags2 |= TG3_FLG2_5705_PLUS;
13008
13009         /* 5700 B0 chips do not support checksumming correctly due
13010          * to hardware bugs.
13011          */
13012         if (tp->pci_chip_rev_id == CHIPREV_ID_5700_B0)
13013                 tp->tg3_flags |= TG3_FLAG_BROKEN_CHECKSUMS;
13014         else {
13015                 tp->tg3_flags |= TG3_FLAG_RX_CHECKSUMS;
13016                 tp->dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
13017                 if (tp->tg3_flags3 & TG3_FLG3_5755_PLUS)
13018                         tp->dev->features |= NETIF_F_IPV6_CSUM;
13019                 tp->dev->features |= NETIF_F_GRO;
13020         }
13021
13022         /* Determine TSO capabilities */
13023         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
13024             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
13025                 tp->tg3_flags2 |= TG3_FLG2_HW_TSO_3;
13026         else if ((tp->tg3_flags3 & TG3_FLG3_5755_PLUS) ||
13027                  GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
13028                 tp->tg3_flags2 |= TG3_FLG2_HW_TSO_2;
13029         else if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) {
13030                 tp->tg3_flags2 |= TG3_FLG2_HW_TSO_1 | TG3_FLG2_TSO_BUG;
13031                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750 &&
13032                     tp->pci_chip_rev_id >= CHIPREV_ID_5750_C2)
13033                         tp->tg3_flags2 &= ~TG3_FLG2_TSO_BUG;
13034         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
13035                    GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701 &&
13036                    tp->pci_chip_rev_id != CHIPREV_ID_5705_A0) {
13037                 tp->tg3_flags2 |= TG3_FLG2_TSO_BUG;
13038                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705)
13039                         tp->fw_needed = FIRMWARE_TG3TSO5;
13040                 else
13041                         tp->fw_needed = FIRMWARE_TG3TSO;
13042         }
13043
13044         tp->irq_max = 1;
13045
13046         if (tp->tg3_flags2 & TG3_FLG2_5750_PLUS) {
13047                 tp->tg3_flags |= TG3_FLAG_SUPPORT_MSI;
13048                 if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_AX ||
13049                     GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5750_BX ||
13050                     (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714 &&
13051                      tp->pci_chip_rev_id <= CHIPREV_ID_5714_A2 &&
13052                      tp->pdev_peer == tp->pdev))
13053                         tp->tg3_flags &= ~TG3_FLAG_SUPPORT_MSI;
13054
13055                 if ((tp->tg3_flags3 & TG3_FLG3_5755_PLUS) ||
13056                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
13057                         tp->tg3_flags2 |= TG3_FLG2_1SHOT_MSI;
13058                 }
13059
13060                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
13061                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765) {
13062                         tp->tg3_flags |= TG3_FLAG_SUPPORT_MSIX;
13063                         tp->irq_max = TG3_IRQ_MAX_VECS;
13064                 }
13065         }
13066
13067         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
13068             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
13069                 tp->tg3_flags3 |= TG3_FLG3_SHORT_DMA_BUG;
13070         else if (!(tp->tg3_flags3 & TG3_FLG3_5755_PLUS)) {
13071                 tp->tg3_flags3 |= TG3_FLG3_4G_DMA_BNDRY_BUG;
13072                 tp->tg3_flags3 |= TG3_FLG3_40BIT_DMA_LIMIT_BUG;
13073         }
13074
13075         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
13076             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
13077                 tp->tg3_flags3 |= TG3_FLG3_USE_JUMBO_BDFLAG;
13078
13079         if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ||
13080             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) ||
13081             (tp->tg3_flags3 & TG3_FLG3_USE_JUMBO_BDFLAG))
13082                 tp->tg3_flags |= TG3_FLAG_JUMBO_CAPABLE;
13083
13084         pci_read_config_dword(tp->pdev, TG3PCI_PCISTATE,
13085                               &pci_state_reg);
13086
13087         tp->pcie_cap = pci_find_capability(tp->pdev, PCI_CAP_ID_EXP);
13088         if (tp->pcie_cap != 0) {
13089                 u16 lnkctl;
13090
13091                 tp->tg3_flags2 |= TG3_FLG2_PCI_EXPRESS;
13092
13093                 pcie_set_readrq(tp->pdev, 4096);
13094
13095                 pci_read_config_word(tp->pdev,
13096                                      tp->pcie_cap + PCI_EXP_LNKCTL,
13097                                      &lnkctl);
13098                 if (lnkctl & PCI_EXP_LNKCTL_CLKREQ_EN) {
13099                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
13100                                 tp->tg3_flags2 &= ~TG3_FLG2_HW_TSO_2;
13101                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
13102                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
13103                             tp->pci_chip_rev_id == CHIPREV_ID_57780_A0 ||
13104                             tp->pci_chip_rev_id == CHIPREV_ID_57780_A1)
13105                                 tp->tg3_flags3 |= TG3_FLG3_CLKREQ_BUG;
13106                 } else if (tp->pci_chip_rev_id == CHIPREV_ID_5717_A0) {
13107                         tp->tg3_flags3 |= TG3_FLG3_L1PLLPD_EN;
13108                 }
13109         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785) {
13110                 tp->tg3_flags2 |= TG3_FLG2_PCI_EXPRESS;
13111         } else if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS) ||
13112                    (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
13113                 tp->pcix_cap = pci_find_capability(tp->pdev, PCI_CAP_ID_PCIX);
13114                 if (!tp->pcix_cap) {
13115                         dev_err(&tp->pdev->dev,
13116                                 "Cannot find PCI-X capability, aborting\n");
13117                         return -EIO;
13118                 }
13119
13120                 if (!(pci_state_reg & PCISTATE_CONV_PCI_MODE))
13121                         tp->tg3_flags |= TG3_FLAG_PCIX_MODE;
13122         }
13123
13124         /* If we have an AMD 762 or VIA K8T800 chipset, write
13125          * reordering to the mailbox registers done by the host
13126          * controller can cause major troubles.  We read back from
13127          * every mailbox register write to force the writes to be
13128          * posted to the chip in order.
13129          */
13130         if (pci_dev_present(write_reorder_chipsets) &&
13131             !(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS))
13132                 tp->tg3_flags |= TG3_FLAG_MBOX_WRITE_REORDER;
13133
13134         pci_read_config_byte(tp->pdev, PCI_CACHE_LINE_SIZE,
13135                              &tp->pci_cacheline_sz);
13136         pci_read_config_byte(tp->pdev, PCI_LATENCY_TIMER,
13137                              &tp->pci_lat_timer);
13138         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 &&
13139             tp->pci_lat_timer < 64) {
13140                 tp->pci_lat_timer = 64;
13141                 pci_write_config_byte(tp->pdev, PCI_LATENCY_TIMER,
13142                                       tp->pci_lat_timer);
13143         }
13144
13145         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5700_BX) {
13146                 /* 5700 BX chips need to have their TX producer index
13147                  * mailboxes written twice to workaround a bug.
13148                  */
13149                 tp->tg3_flags |= TG3_FLAG_TXD_MBOX_HWBUG;
13150
13151                 /* If we are in PCI-X mode, enable register write workaround.
13152                  *
13153                  * The workaround is to use indirect register accesses
13154                  * for all chip writes not to mailbox registers.
13155                  */
13156                 if (tp->tg3_flags & TG3_FLAG_PCIX_MODE) {
13157                         u32 pm_reg;
13158
13159                         tp->tg3_flags |= TG3_FLAG_PCIX_TARGET_HWBUG;
13160
13161                         /* The chip can have it's power management PCI config
13162                          * space registers clobbered due to this bug.
13163                          * So explicitly force the chip into D0 here.
13164                          */
13165                         pci_read_config_dword(tp->pdev,
13166                                               tp->pm_cap + PCI_PM_CTRL,
13167                                               &pm_reg);
13168                         pm_reg &= ~PCI_PM_CTRL_STATE_MASK;
13169                         pm_reg |= PCI_PM_CTRL_PME_ENABLE | 0 /* D0 */;
13170                         pci_write_config_dword(tp->pdev,
13171                                                tp->pm_cap + PCI_PM_CTRL,
13172                                                pm_reg);
13173
13174                         /* Also, force SERR#/PERR# in PCI command. */
13175                         pci_read_config_word(tp->pdev, PCI_COMMAND, &pci_cmd);
13176                         pci_cmd |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
13177                         pci_write_config_word(tp->pdev, PCI_COMMAND, pci_cmd);
13178                 }
13179         }
13180
13181         if ((pci_state_reg & PCISTATE_BUS_SPEED_HIGH) != 0)
13182                 tp->tg3_flags |= TG3_FLAG_PCI_HIGH_SPEED;
13183         if ((pci_state_reg & PCISTATE_BUS_32BIT) != 0)
13184                 tp->tg3_flags |= TG3_FLAG_PCI_32BIT;
13185
13186         /* Chip-specific fixup from Broadcom driver */
13187         if ((tp->pci_chip_rev_id == CHIPREV_ID_5704_A0) &&
13188             (!(pci_state_reg & PCISTATE_RETRY_SAME_DMA))) {
13189                 pci_state_reg |= PCISTATE_RETRY_SAME_DMA;
13190                 pci_write_config_dword(tp->pdev, TG3PCI_PCISTATE, pci_state_reg);
13191         }
13192
13193         /* Default fast path register access methods */
13194         tp->read32 = tg3_read32;
13195         tp->write32 = tg3_write32;
13196         tp->read32_mbox = tg3_read32;
13197         tp->write32_mbox = tg3_write32;
13198         tp->write32_tx_mbox = tg3_write32;
13199         tp->write32_rx_mbox = tg3_write32;
13200
13201         /* Various workaround register access methods */
13202         if (tp->tg3_flags & TG3_FLAG_PCIX_TARGET_HWBUG)
13203                 tp->write32 = tg3_write_indirect_reg32;
13204         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701 ||
13205                  ((tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) &&
13206                   tp->pci_chip_rev_id == CHIPREV_ID_5750_A0)) {
13207                 /*
13208                  * Back to back register writes can cause problems on these
13209                  * chips, the workaround is to read back all reg writes
13210                  * except those to mailbox regs.
13211                  *
13212                  * See tg3_write_indirect_reg32().
13213                  */
13214                 tp->write32 = tg3_write_flush_reg32;
13215         }
13216
13217         if ((tp->tg3_flags & TG3_FLAG_TXD_MBOX_HWBUG) ||
13218             (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)) {
13219                 tp->write32_tx_mbox = tg3_write32_tx_mbox;
13220                 if (tp->tg3_flags & TG3_FLAG_MBOX_WRITE_REORDER)
13221                         tp->write32_rx_mbox = tg3_write_flush_reg32;
13222         }
13223
13224         if (tp->tg3_flags2 & TG3_FLG2_ICH_WORKAROUND) {
13225                 tp->read32 = tg3_read_indirect_reg32;
13226                 tp->write32 = tg3_write_indirect_reg32;
13227                 tp->read32_mbox = tg3_read_indirect_mbox;
13228                 tp->write32_mbox = tg3_write_indirect_mbox;
13229                 tp->write32_tx_mbox = tg3_write_indirect_mbox;
13230                 tp->write32_rx_mbox = tg3_write_indirect_mbox;
13231
13232                 iounmap(tp->regs);
13233                 tp->regs = NULL;
13234
13235                 pci_read_config_word(tp->pdev, PCI_COMMAND, &pci_cmd);
13236                 pci_cmd &= ~PCI_COMMAND_MEMORY;
13237                 pci_write_config_word(tp->pdev, PCI_COMMAND, pci_cmd);
13238         }
13239         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
13240                 tp->read32_mbox = tg3_read32_mbox_5906;
13241                 tp->write32_mbox = tg3_write32_mbox_5906;
13242                 tp->write32_tx_mbox = tg3_write32_mbox_5906;
13243                 tp->write32_rx_mbox = tg3_write32_mbox_5906;
13244         }
13245
13246         if (tp->write32 == tg3_write_indirect_reg32 ||
13247             ((tp->tg3_flags & TG3_FLAG_PCIX_MODE) &&
13248              (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
13249               GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701)))
13250                 tp->tg3_flags |= TG3_FLAG_SRAM_USE_CONFIG;
13251
13252         /* Get eeprom hw config before calling tg3_set_power_state().
13253          * In particular, the TG3_FLG2_IS_NIC flag must be
13254          * determined before calling tg3_set_power_state() so that
13255          * we know whether or not to switch out of Vaux power.
13256          * When the flag is set, it means that GPIO1 is used for eeprom
13257          * write protect and also implies that it is a LOM where GPIOs
13258          * are not used to switch power.
13259          */
13260         tg3_get_eeprom_hw_cfg(tp);
13261
13262         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
13263                 /* Allow reads and writes to the
13264                  * APE register and memory space.
13265                  */
13266                 pci_state_reg |= PCISTATE_ALLOW_APE_CTLSPC_WR |
13267                                  PCISTATE_ALLOW_APE_SHMEM_WR |
13268                                  PCISTATE_ALLOW_APE_PSPACE_WR;
13269                 pci_write_config_dword(tp->pdev, TG3PCI_PCISTATE,
13270                                        pci_state_reg);
13271         }
13272
13273         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
13274             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
13275             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
13276             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 ||
13277             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
13278             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
13279                 tp->tg3_flags |= TG3_FLAG_CPMU_PRESENT;
13280
13281         /* Set up tp->grc_local_ctrl before calling tg3_set_power_state().
13282          * GPIO1 driven high will bring 5700's external PHY out of reset.
13283          * It is also used as eeprom write protect on LOMs.
13284          */
13285         tp->grc_local_ctrl = GRC_LCLCTRL_INT_ON_ATTN | GRC_LCLCTRL_AUTO_SEEPROM;
13286         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) ||
13287             (tp->tg3_flags & TG3_FLAG_EEPROM_WRITE_PROT))
13288                 tp->grc_local_ctrl |= (GRC_LCLCTRL_GPIO_OE1 |
13289                                        GRC_LCLCTRL_GPIO_OUTPUT1);
13290         /* Unused GPIO3 must be driven as output on 5752 because there
13291          * are no pull-up resistors on unused GPIO pins.
13292          */
13293         else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752)
13294                 tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE3;
13295
13296         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 ||
13297             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780 ||
13298             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
13299                 tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_UART_SEL;
13300
13301         if (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5761 ||
13302             tp->pdev->device == TG3PCI_DEVICE_TIGON3_5761S) {
13303                 /* Turn off the debug UART. */
13304                 tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_UART_SEL;
13305                 if (tp->tg3_flags2 & TG3_FLG2_IS_NIC)
13306                         /* Keep VMain power. */
13307                         tp->grc_local_ctrl |= GRC_LCLCTRL_GPIO_OE0 |
13308                                               GRC_LCLCTRL_GPIO_OUTPUT0;
13309         }
13310
13311         /* Force the chip into D0. */
13312         err = tg3_set_power_state(tp, PCI_D0);
13313         if (err) {
13314                 dev_err(&tp->pdev->dev, "Transition to D0 failed\n");
13315                 return err;
13316         }
13317
13318         /* Derive initial jumbo mode from MTU assigned in
13319          * ether_setup() via the alloc_etherdev() call
13320          */
13321         if (tp->dev->mtu > ETH_DATA_LEN &&
13322             !(tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
13323                 tp->tg3_flags |= TG3_FLAG_JUMBO_RING_ENABLE;
13324
13325         /* Determine WakeOnLan speed to use. */
13326         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
13327             tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
13328             tp->pci_chip_rev_id == CHIPREV_ID_5701_B0 ||
13329             tp->pci_chip_rev_id == CHIPREV_ID_5701_B2) {
13330                 tp->tg3_flags &= ~(TG3_FLAG_WOL_SPEED_100MB);
13331         } else {
13332                 tp->tg3_flags |= TG3_FLAG_WOL_SPEED_100MB;
13333         }
13334
13335         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
13336                 tp->tg3_flags3 |= TG3_FLG3_PHY_IS_FET;
13337
13338         /* A few boards don't want Ethernet@WireSpeed phy feature */
13339         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) ||
13340             ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) &&
13341              (tp->pci_chip_rev_id != CHIPREV_ID_5705_A0) &&
13342              (tp->pci_chip_rev_id != CHIPREV_ID_5705_A1)) ||
13343             (tp->tg3_flags3 & TG3_FLG3_PHY_IS_FET) ||
13344             (tp->tg3_flags2 & TG3_FLG2_ANY_SERDES))
13345                 tp->tg3_flags2 |= TG3_FLG2_NO_ETH_WIRE_SPEED;
13346
13347         if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5703_AX ||
13348             GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5704_AX)
13349                 tp->tg3_flags2 |= TG3_FLG2_PHY_ADC_BUG;
13350         if (tp->pci_chip_rev_id == CHIPREV_ID_5704_A0)
13351                 tp->tg3_flags2 |= TG3_FLG2_PHY_5704_A0_BUG;
13352
13353         if ((tp->tg3_flags2 & TG3_FLG2_5705_PLUS) &&
13354             !(tp->tg3_flags3 & TG3_FLG3_PHY_IS_FET) &&
13355             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785 &&
13356             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_57780 &&
13357             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5717 &&
13358             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_57765) {
13359                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755 ||
13360                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5787 ||
13361                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 ||
13362                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761) {
13363                         if (tp->pdev->device != PCI_DEVICE_ID_TIGON3_5756 &&
13364                             tp->pdev->device != PCI_DEVICE_ID_TIGON3_5722)
13365                                 tp->tg3_flags2 |= TG3_FLG2_PHY_JITTER_BUG;
13366                         if (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5755M)
13367                                 tp->tg3_flags2 |= TG3_FLG2_PHY_ADJUST_TRIM;
13368                 } else
13369                         tp->tg3_flags2 |= TG3_FLG2_PHY_BER_BUG;
13370         }
13371
13372         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
13373             GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) {
13374                 tp->phy_otp = tg3_read_otp_phycfg(tp);
13375                 if (tp->phy_otp == 0)
13376                         tp->phy_otp = TG3_OTP_DEFAULT;
13377         }
13378
13379         if (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT)
13380                 tp->mi_mode = MAC_MI_MODE_500KHZ_CONST;
13381         else
13382                 tp->mi_mode = MAC_MI_MODE_BASE;
13383
13384         tp->coalesce_mode = 0;
13385         if (GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5700_AX &&
13386             GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5700_BX)
13387                 tp->coalesce_mode |= HOSTCC_MODE_32BYTE;
13388
13389         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
13390             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
13391                 tp->tg3_flags3 |= TG3_FLG3_USE_PHYLIB;
13392
13393         err = tg3_mdio_init(tp);
13394         if (err)
13395                 return err;
13396
13397         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 &&
13398             (tp->pci_chip_rev_id != CHIPREV_ID_5717_A0 ||
13399                  (tp->tg3_flags2 & TG3_FLG2_MII_SERDES)))
13400                 return -ENOTSUPP;
13401
13402         /* Initialize data/descriptor byte/word swapping. */
13403         val = tr32(GRC_MODE);
13404         val &= GRC_MODE_HOST_STACKUP;
13405         tw32(GRC_MODE, val | tp->grc_mode);
13406
13407         tg3_switch_clocks(tp);
13408
13409         /* Clear this out for sanity. */
13410         tw32(TG3PCI_MEM_WIN_BASE_ADDR, 0);
13411
13412         pci_read_config_dword(tp->pdev, TG3PCI_PCISTATE,
13413                               &pci_state_reg);
13414         if ((pci_state_reg & PCISTATE_CONV_PCI_MODE) == 0 &&
13415             (tp->tg3_flags & TG3_FLAG_PCIX_TARGET_HWBUG) == 0) {
13416                 u32 chiprevid = GET_CHIP_REV_ID(tp->misc_host_ctrl);
13417
13418                 if (chiprevid == CHIPREV_ID_5701_A0 ||
13419                     chiprevid == CHIPREV_ID_5701_B0 ||
13420                     chiprevid == CHIPREV_ID_5701_B2 ||
13421                     chiprevid == CHIPREV_ID_5701_B5) {
13422                         void __iomem *sram_base;
13423
13424                         /* Write some dummy words into the SRAM status block
13425                          * area, see if it reads back correctly.  If the return
13426                          * value is bad, force enable the PCIX workaround.
13427                          */
13428                         sram_base = tp->regs + NIC_SRAM_WIN_BASE + NIC_SRAM_STATS_BLK;
13429
13430                         writel(0x00000000, sram_base);
13431                         writel(0x00000000, sram_base + 4);
13432                         writel(0xffffffff, sram_base + 4);
13433                         if (readl(sram_base) != 0x00000000)
13434                                 tp->tg3_flags |= TG3_FLAG_PCIX_TARGET_HWBUG;
13435                 }
13436         }
13437
13438         udelay(50);
13439         tg3_nvram_init(tp);
13440
13441         grc_misc_cfg = tr32(GRC_MISC_CFG);
13442         grc_misc_cfg &= GRC_MISC_CFG_BOARD_ID_MASK;
13443
13444         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 &&
13445             (grc_misc_cfg == GRC_MISC_CFG_BOARD_ID_5788 ||
13446              grc_misc_cfg == GRC_MISC_CFG_BOARD_ID_5788M))
13447                 tp->tg3_flags2 |= TG3_FLG2_IS_5788;
13448
13449         if (!(tp->tg3_flags2 & TG3_FLG2_IS_5788) &&
13450             (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700))
13451                 tp->tg3_flags |= TG3_FLAG_TAGGED_STATUS;
13452         if (tp->tg3_flags & TG3_FLAG_TAGGED_STATUS) {
13453                 tp->coalesce_mode |= (HOSTCC_MODE_CLRTICK_RXBD |
13454                                       HOSTCC_MODE_CLRTICK_TXBD);
13455
13456                 tp->misc_host_ctrl |= MISC_HOST_CTRL_TAGGED_STATUS;
13457                 pci_write_config_dword(tp->pdev, TG3PCI_MISC_HOST_CTRL,
13458                                        tp->misc_host_ctrl);
13459         }
13460
13461         /* Preserve the APE MAC_MODE bits */
13462         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE)
13463                 tp->mac_mode = tr32(MAC_MODE) |
13464                                MAC_MODE_APE_TX_EN | MAC_MODE_APE_RX_EN;
13465         else
13466                 tp->mac_mode = TG3_DEF_MAC_MODE;
13467
13468         /* these are limited to 10/100 only */
13469         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 &&
13470              (grc_misc_cfg == 0x8000 || grc_misc_cfg == 0x4000)) ||
13471             (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 &&
13472              tp->pdev->vendor == PCI_VENDOR_ID_BROADCOM &&
13473              (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5901 ||
13474               tp->pdev->device == PCI_DEVICE_ID_TIGON3_5901_2 ||
13475               tp->pdev->device == PCI_DEVICE_ID_TIGON3_5705F)) ||
13476             (tp->pdev->vendor == PCI_VENDOR_ID_BROADCOM &&
13477              (tp->pdev->device == PCI_DEVICE_ID_TIGON3_5751F ||
13478               tp->pdev->device == PCI_DEVICE_ID_TIGON3_5753F ||
13479               tp->pdev->device == PCI_DEVICE_ID_TIGON3_5787F)) ||
13480             tp->pdev->device == TG3PCI_DEVICE_TIGON3_57790 ||
13481             tp->pdev->device == TG3PCI_DEVICE_TIGON3_57791 ||
13482             tp->pdev->device == TG3PCI_DEVICE_TIGON3_57795 ||
13483             (tp->tg3_flags3 & TG3_FLG3_PHY_IS_FET))
13484                 tp->tg3_flags |= TG3_FLAG_10_100_ONLY;
13485
13486         err = tg3_phy_probe(tp);
13487         if (err) {
13488                 dev_err(&tp->pdev->dev, "phy probe failed, err %d\n", err);
13489                 /* ... but do not return immediately ... */
13490                 tg3_mdio_fini(tp);
13491         }
13492
13493         tg3_read_vpd(tp);
13494         tg3_read_fw_ver(tp);
13495
13496         if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) {
13497                 tp->tg3_flags &= ~TG3_FLAG_USE_MI_INTERRUPT;
13498         } else {
13499                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700)
13500                         tp->tg3_flags |= TG3_FLAG_USE_MI_INTERRUPT;
13501                 else
13502                         tp->tg3_flags &= ~TG3_FLAG_USE_MI_INTERRUPT;
13503         }
13504
13505         /* 5700 {AX,BX} chips have a broken status block link
13506          * change bit implementation, so we must use the
13507          * status register in those cases.
13508          */
13509         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700)
13510                 tp->tg3_flags |= TG3_FLAG_USE_LINKCHG_REG;
13511         else
13512                 tp->tg3_flags &= ~TG3_FLAG_USE_LINKCHG_REG;
13513
13514         /* The led_ctrl is set during tg3_phy_probe, here we might
13515          * have to force the link status polling mechanism based
13516          * upon subsystem IDs.
13517          */
13518         if (tp->pdev->subsystem_vendor == PCI_VENDOR_ID_DELL &&
13519             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701 &&
13520             !(tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)) {
13521                 tp->tg3_flags |= (TG3_FLAG_USE_MI_INTERRUPT |
13522                                   TG3_FLAG_USE_LINKCHG_REG);
13523         }
13524
13525         /* For all SERDES we poll the MAC status register. */
13526         if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)
13527                 tp->tg3_flags |= TG3_FLAG_POLL_SERDES;
13528         else
13529                 tp->tg3_flags &= ~TG3_FLAG_POLL_SERDES;
13530
13531         tp->rx_offset = NET_IP_ALIGN + TG3_RX_HEADROOM;
13532         tp->rx_copy_thresh = TG3_RX_COPY_THRESHOLD;
13533         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701 &&
13534             (tp->tg3_flags & TG3_FLAG_PCIX_MODE) != 0) {
13535                 tp->rx_offset -= NET_IP_ALIGN;
13536 #ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
13537                 tp->rx_copy_thresh = ~(u16)0;
13538 #endif
13539         }
13540
13541         tp->rx_std_max_post = TG3_RX_RING_SIZE;
13542
13543         /* Increment the rx prod index on the rx std ring by at most
13544          * 8 for these chips to workaround hw errata.
13545          */
13546         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750 ||
13547             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5752 ||
13548             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5755)
13549                 tp->rx_std_max_post = 8;
13550
13551         if (tp->tg3_flags & TG3_FLAG_ASPM_WORKAROUND)
13552                 tp->pwrmgmt_thresh = tr32(PCIE_PWR_MGMT_THRESH) &
13553                                      PCIE_PWR_MGMT_L1_THRESH_MSK;
13554
13555         return err;
13556 }
13557
13558 #ifdef CONFIG_SPARC
13559 static int __devinit tg3_get_macaddr_sparc(struct tg3 *tp)
13560 {
13561         struct net_device *dev = tp->dev;
13562         struct pci_dev *pdev = tp->pdev;
13563         struct device_node *dp = pci_device_to_OF_node(pdev);
13564         const unsigned char *addr;
13565         int len;
13566
13567         addr = of_get_property(dp, "local-mac-address", &len);
13568         if (addr && len == 6) {
13569                 memcpy(dev->dev_addr, addr, 6);
13570                 memcpy(dev->perm_addr, dev->dev_addr, 6);
13571                 return 0;
13572         }
13573         return -ENODEV;
13574 }
13575
13576 static int __devinit tg3_get_default_macaddr_sparc(struct tg3 *tp)
13577 {
13578         struct net_device *dev = tp->dev;
13579
13580         memcpy(dev->dev_addr, idprom->id_ethaddr, 6);
13581         memcpy(dev->perm_addr, idprom->id_ethaddr, 6);
13582         return 0;
13583 }
13584 #endif
13585
13586 static int __devinit tg3_get_device_address(struct tg3 *tp)
13587 {
13588         struct net_device *dev = tp->dev;
13589         u32 hi, lo, mac_offset;
13590         int addr_ok = 0;
13591
13592 #ifdef CONFIG_SPARC
13593         if (!tg3_get_macaddr_sparc(tp))
13594                 return 0;
13595 #endif
13596
13597         mac_offset = 0x7c;
13598         if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) ||
13599             (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)) {
13600                 if (tr32(TG3PCI_DUAL_MAC_CTRL) & DUAL_MAC_CTRL_ID)
13601                         mac_offset = 0xcc;
13602                 if (tg3_nvram_lock(tp))
13603                         tw32_f(NVRAM_CMD, NVRAM_CMD_RESET);
13604                 else
13605                         tg3_nvram_unlock(tp);
13606         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717) {
13607                 if (tr32(TG3_CPMU_STATUS) & TG3_CPMU_STATUS_PCIE_FUNC)
13608                         mac_offset = 0xcc;
13609         } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
13610                 mac_offset = 0x10;
13611
13612         /* First try to get it from MAC address mailbox. */
13613         tg3_read_mem(tp, NIC_SRAM_MAC_ADDR_HIGH_MBOX, &hi);
13614         if ((hi >> 16) == 0x484b) {
13615                 dev->dev_addr[0] = (hi >>  8) & 0xff;
13616                 dev->dev_addr[1] = (hi >>  0) & 0xff;
13617
13618                 tg3_read_mem(tp, NIC_SRAM_MAC_ADDR_LOW_MBOX, &lo);
13619                 dev->dev_addr[2] = (lo >> 24) & 0xff;
13620                 dev->dev_addr[3] = (lo >> 16) & 0xff;
13621                 dev->dev_addr[4] = (lo >>  8) & 0xff;
13622                 dev->dev_addr[5] = (lo >>  0) & 0xff;
13623
13624                 /* Some old bootcode may report a 0 MAC address in SRAM */
13625                 addr_ok = is_valid_ether_addr(&dev->dev_addr[0]);
13626         }
13627         if (!addr_ok) {
13628                 /* Next, try NVRAM. */
13629                 if (!(tp->tg3_flags3 & TG3_FLG3_NO_NVRAM) &&
13630                     !tg3_nvram_read_be32(tp, mac_offset + 0, &hi) &&
13631                     !tg3_nvram_read_be32(tp, mac_offset + 4, &lo)) {
13632                         memcpy(&dev->dev_addr[0], ((char *)&hi) + 2, 2);
13633                         memcpy(&dev->dev_addr[2], (char *)&lo, sizeof(lo));
13634                 }
13635                 /* Finally just fetch it out of the MAC control regs. */
13636                 else {
13637                         hi = tr32(MAC_ADDR_0_HIGH);
13638                         lo = tr32(MAC_ADDR_0_LOW);
13639
13640                         dev->dev_addr[5] = lo & 0xff;
13641                         dev->dev_addr[4] = (lo >> 8) & 0xff;
13642                         dev->dev_addr[3] = (lo >> 16) & 0xff;
13643                         dev->dev_addr[2] = (lo >> 24) & 0xff;
13644                         dev->dev_addr[1] = hi & 0xff;
13645                         dev->dev_addr[0] = (hi >> 8) & 0xff;
13646                 }
13647         }
13648
13649         if (!is_valid_ether_addr(&dev->dev_addr[0])) {
13650 #ifdef CONFIG_SPARC
13651                 if (!tg3_get_default_macaddr_sparc(tp))
13652                         return 0;
13653 #endif
13654                 return -EINVAL;
13655         }
13656         memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
13657         return 0;
13658 }
13659
13660 #define BOUNDARY_SINGLE_CACHELINE       1
13661 #define BOUNDARY_MULTI_CACHELINE        2
13662
13663 static u32 __devinit tg3_calc_dma_bndry(struct tg3 *tp, u32 val)
13664 {
13665         int cacheline_size;
13666         u8 byte;
13667         int goal;
13668
13669         pci_read_config_byte(tp->pdev, PCI_CACHE_LINE_SIZE, &byte);
13670         if (byte == 0)
13671                 cacheline_size = 1024;
13672         else
13673                 cacheline_size = (int) byte * 4;
13674
13675         /* On 5703 and later chips, the boundary bits have no
13676          * effect.
13677          */
13678         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
13679             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701 &&
13680             !(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS))
13681                 goto out;
13682
13683 #if defined(CONFIG_PPC64) || defined(CONFIG_IA64) || defined(CONFIG_PARISC)
13684         goal = BOUNDARY_MULTI_CACHELINE;
13685 #else
13686 #if defined(CONFIG_SPARC64) || defined(CONFIG_ALPHA)
13687         goal = BOUNDARY_SINGLE_CACHELINE;
13688 #else
13689         goal = 0;
13690 #endif
13691 #endif
13692
13693         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
13694             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765) {
13695                 val = goal ? 0 : DMA_RWCTRL_DIS_CACHE_ALIGNMENT;
13696                 goto out;
13697         }
13698
13699         if (!goal)
13700                 goto out;
13701
13702         /* PCI controllers on most RISC systems tend to disconnect
13703          * when a device tries to burst across a cache-line boundary.
13704          * Therefore, letting tg3 do so just wastes PCI bandwidth.
13705          *
13706          * Unfortunately, for PCI-E there are only limited
13707          * write-side controls for this, and thus for reads
13708          * we will still get the disconnects.  We'll also waste
13709          * these PCI cycles for both read and write for chips
13710          * other than 5700 and 5701 which do not implement the
13711          * boundary bits.
13712          */
13713         if ((tp->tg3_flags & TG3_FLAG_PCIX_MODE) &&
13714             !(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS)) {
13715                 switch (cacheline_size) {
13716                 case 16:
13717                 case 32:
13718                 case 64:
13719                 case 128:
13720                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
13721                                 val |= (DMA_RWCTRL_READ_BNDRY_128_PCIX |
13722                                         DMA_RWCTRL_WRITE_BNDRY_128_PCIX);
13723                         } else {
13724                                 val |= (DMA_RWCTRL_READ_BNDRY_384_PCIX |
13725                                         DMA_RWCTRL_WRITE_BNDRY_384_PCIX);
13726                         }
13727                         break;
13728
13729                 case 256:
13730                         val |= (DMA_RWCTRL_READ_BNDRY_256_PCIX |
13731                                 DMA_RWCTRL_WRITE_BNDRY_256_PCIX);
13732                         break;
13733
13734                 default:
13735                         val |= (DMA_RWCTRL_READ_BNDRY_384_PCIX |
13736                                 DMA_RWCTRL_WRITE_BNDRY_384_PCIX);
13737                         break;
13738                 }
13739         } else if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
13740                 switch (cacheline_size) {
13741                 case 16:
13742                 case 32:
13743                 case 64:
13744                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
13745                                 val &= ~DMA_RWCTRL_WRITE_BNDRY_DISAB_PCIE;
13746                                 val |= DMA_RWCTRL_WRITE_BNDRY_64_PCIE;
13747                                 break;
13748                         }
13749                         /* fallthrough */
13750                 case 128:
13751                 default:
13752                         val &= ~DMA_RWCTRL_WRITE_BNDRY_DISAB_PCIE;
13753                         val |= DMA_RWCTRL_WRITE_BNDRY_128_PCIE;
13754                         break;
13755                 }
13756         } else {
13757                 switch (cacheline_size) {
13758                 case 16:
13759                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
13760                                 val |= (DMA_RWCTRL_READ_BNDRY_16 |
13761                                         DMA_RWCTRL_WRITE_BNDRY_16);
13762                                 break;
13763                         }
13764                         /* fallthrough */
13765                 case 32:
13766                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
13767                                 val |= (DMA_RWCTRL_READ_BNDRY_32 |
13768                                         DMA_RWCTRL_WRITE_BNDRY_32);
13769                                 break;
13770                         }
13771                         /* fallthrough */
13772                 case 64:
13773                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
13774                                 val |= (DMA_RWCTRL_READ_BNDRY_64 |
13775                                         DMA_RWCTRL_WRITE_BNDRY_64);
13776                                 break;
13777                         }
13778                         /* fallthrough */
13779                 case 128:
13780                         if (goal == BOUNDARY_SINGLE_CACHELINE) {
13781                                 val |= (DMA_RWCTRL_READ_BNDRY_128 |
13782                                         DMA_RWCTRL_WRITE_BNDRY_128);
13783                                 break;
13784                         }
13785                         /* fallthrough */
13786                 case 256:
13787                         val |= (DMA_RWCTRL_READ_BNDRY_256 |
13788                                 DMA_RWCTRL_WRITE_BNDRY_256);
13789                         break;
13790                 case 512:
13791                         val |= (DMA_RWCTRL_READ_BNDRY_512 |
13792                                 DMA_RWCTRL_WRITE_BNDRY_512);
13793                         break;
13794                 case 1024:
13795                 default:
13796                         val |= (DMA_RWCTRL_READ_BNDRY_1024 |
13797                                 DMA_RWCTRL_WRITE_BNDRY_1024);
13798                         break;
13799                 }
13800         }
13801
13802 out:
13803         return val;
13804 }
13805
13806 static int __devinit tg3_do_test_dma(struct tg3 *tp, u32 *buf, dma_addr_t buf_dma, int size, int to_device)
13807 {
13808         struct tg3_internal_buffer_desc test_desc;
13809         u32 sram_dma_descs;
13810         int i, ret;
13811
13812         sram_dma_descs = NIC_SRAM_DMA_DESC_POOL_BASE;
13813
13814         tw32(FTQ_RCVBD_COMP_FIFO_ENQDEQ, 0);
13815         tw32(FTQ_RCVDATA_COMP_FIFO_ENQDEQ, 0);
13816         tw32(RDMAC_STATUS, 0);
13817         tw32(WDMAC_STATUS, 0);
13818
13819         tw32(BUFMGR_MODE, 0);
13820         tw32(FTQ_RESET, 0);
13821
13822         test_desc.addr_hi = ((u64) buf_dma) >> 32;
13823         test_desc.addr_lo = buf_dma & 0xffffffff;
13824         test_desc.nic_mbuf = 0x00002100;
13825         test_desc.len = size;
13826
13827         /*
13828          * HP ZX1 was seeing test failures for 5701 cards running at 33Mhz
13829          * the *second* time the tg3 driver was getting loaded after an
13830          * initial scan.
13831          *
13832          * Broadcom tells me:
13833          *   ...the DMA engine is connected to the GRC block and a DMA
13834          *   reset may affect the GRC block in some unpredictable way...
13835          *   The behavior of resets to individual blocks has not been tested.
13836          *
13837          * Broadcom noted the GRC reset will also reset all sub-components.
13838          */
13839         if (to_device) {
13840                 test_desc.cqid_sqid = (13 << 8) | 2;
13841
13842                 tw32_f(RDMAC_MODE, RDMAC_MODE_ENABLE);
13843                 udelay(40);
13844         } else {
13845                 test_desc.cqid_sqid = (16 << 8) | 7;
13846
13847                 tw32_f(WDMAC_MODE, WDMAC_MODE_ENABLE);
13848                 udelay(40);
13849         }
13850         test_desc.flags = 0x00000005;
13851
13852         for (i = 0; i < (sizeof(test_desc) / sizeof(u32)); i++) {
13853                 u32 val;
13854
13855                 val = *(((u32 *)&test_desc) + i);
13856                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR,
13857                                        sram_dma_descs + (i * sizeof(u32)));
13858                 pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_DATA, val);
13859         }
13860         pci_write_config_dword(tp->pdev, TG3PCI_MEM_WIN_BASE_ADDR, 0);
13861
13862         if (to_device)
13863                 tw32(FTQ_DMA_HIGH_READ_FIFO_ENQDEQ, sram_dma_descs);
13864         else
13865                 tw32(FTQ_DMA_HIGH_WRITE_FIFO_ENQDEQ, sram_dma_descs);
13866
13867         ret = -ENODEV;
13868         for (i = 0; i < 40; i++) {
13869                 u32 val;
13870
13871                 if (to_device)
13872                         val = tr32(FTQ_RCVBD_COMP_FIFO_ENQDEQ);
13873                 else
13874                         val = tr32(FTQ_RCVDATA_COMP_FIFO_ENQDEQ);
13875                 if ((val & 0xffff) == sram_dma_descs) {
13876                         ret = 0;
13877                         break;
13878                 }
13879
13880                 udelay(100);
13881         }
13882
13883         return ret;
13884 }
13885
13886 #define TEST_BUFFER_SIZE        0x2000
13887
13888 static int __devinit tg3_test_dma(struct tg3 *tp)
13889 {
13890         dma_addr_t buf_dma;
13891         u32 *buf, saved_dma_rwctrl;
13892         int ret = 0;
13893
13894         buf = pci_alloc_consistent(tp->pdev, TEST_BUFFER_SIZE, &buf_dma);
13895         if (!buf) {
13896                 ret = -ENOMEM;
13897                 goto out_nofree;
13898         }
13899
13900         tp->dma_rwctrl = ((0x7 << DMA_RWCTRL_PCI_WRITE_CMD_SHIFT) |
13901                           (0x6 << DMA_RWCTRL_PCI_READ_CMD_SHIFT));
13902
13903         tp->dma_rwctrl = tg3_calc_dma_bndry(tp, tp->dma_rwctrl);
13904
13905         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
13906             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765)
13907                 goto out;
13908
13909         if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
13910                 /* DMA read watermark not used on PCIE */
13911                 tp->dma_rwctrl |= 0x00180000;
13912         } else if (!(tp->tg3_flags & TG3_FLAG_PCIX_MODE)) {
13913                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705 ||
13914                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5750)
13915                         tp->dma_rwctrl |= 0x003f0000;
13916                 else
13917                         tp->dma_rwctrl |= 0x003f000f;
13918         } else {
13919                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
13920                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
13921                         u32 ccval = (tr32(TG3PCI_CLOCK_CTRL) & 0x1f);
13922                         u32 read_water = 0x7;
13923
13924                         /* If the 5704 is behind the EPB bridge, we can
13925                          * do the less restrictive ONE_DMA workaround for
13926                          * better performance.
13927                          */
13928                         if ((tp->tg3_flags & TG3_FLAG_40BIT_DMA_BUG) &&
13929                             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704)
13930                                 tp->dma_rwctrl |= 0x8000;
13931                         else if (ccval == 0x6 || ccval == 0x7)
13932                                 tp->dma_rwctrl |= DMA_RWCTRL_ONE_DMA;
13933
13934                         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703)
13935                                 read_water = 4;
13936                         /* Set bit 23 to enable PCIX hw bug fix */
13937                         tp->dma_rwctrl |=
13938                                 (read_water << DMA_RWCTRL_READ_WATER_SHIFT) |
13939                                 (0x3 << DMA_RWCTRL_WRITE_WATER_SHIFT) |
13940                                 (1 << 23);
13941                 } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780) {
13942                         /* 5780 always in PCIX mode */
13943                         tp->dma_rwctrl |= 0x00144000;
13944                 } else if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5714) {
13945                         /* 5714 always in PCIX mode */
13946                         tp->dma_rwctrl |= 0x00148000;
13947                 } else {
13948                         tp->dma_rwctrl |= 0x001b000f;
13949                 }
13950         }
13951
13952         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
13953             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704)
13954                 tp->dma_rwctrl &= 0xfffffff0;
13955
13956         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
13957             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
13958                 /* Remove this if it causes problems for some boards. */
13959                 tp->dma_rwctrl |= DMA_RWCTRL_USE_MEM_READ_MULT;
13960
13961                 /* On 5700/5701 chips, we need to set this bit.
13962                  * Otherwise the chip will issue cacheline transactions
13963                  * to streamable DMA memory with not all the byte
13964                  * enables turned on.  This is an error on several
13965                  * RISC PCI controllers, in particular sparc64.
13966                  *
13967                  * On 5703/5704 chips, this bit has been reassigned
13968                  * a different meaning.  In particular, it is used
13969                  * on those chips to enable a PCI-X workaround.
13970                  */
13971                 tp->dma_rwctrl |= DMA_RWCTRL_ASSERT_ALL_BE;
13972         }
13973
13974         tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
13975
13976 #if 0
13977         /* Unneeded, already done by tg3_get_invariants.  */
13978         tg3_switch_clocks(tp);
13979 #endif
13980
13981         if (GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5700 &&
13982             GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5701)
13983                 goto out;
13984
13985         /* It is best to perform DMA test with maximum write burst size
13986          * to expose the 5700/5701 write DMA bug.
13987          */
13988         saved_dma_rwctrl = tp->dma_rwctrl;
13989         tp->dma_rwctrl &= ~DMA_RWCTRL_WRITE_BNDRY_MASK;
13990         tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
13991
13992         while (1) {
13993                 u32 *p = buf, i;
13994
13995                 for (i = 0; i < TEST_BUFFER_SIZE / sizeof(u32); i++)
13996                         p[i] = i;
13997
13998                 /* Send the buffer to the chip. */
13999                 ret = tg3_do_test_dma(tp, buf, buf_dma, TEST_BUFFER_SIZE, 1);
14000                 if (ret) {
14001                         dev_err(&tp->pdev->dev,
14002                                 "%s: Buffer write failed. err = %d\n",
14003                                 __func__, ret);
14004                         break;
14005                 }
14006
14007 #if 0
14008                 /* validate data reached card RAM correctly. */
14009                 for (i = 0; i < TEST_BUFFER_SIZE / sizeof(u32); i++) {
14010                         u32 val;
14011                         tg3_read_mem(tp, 0x2100 + (i*4), &val);
14012                         if (le32_to_cpu(val) != p[i]) {
14013                                 dev_err(&tp->pdev->dev,
14014                                         "%s: Buffer corrupted on device! "
14015                                         "(%d != %d)\n", __func__, val, i);
14016                                 /* ret = -ENODEV here? */
14017                         }
14018                         p[i] = 0;
14019                 }
14020 #endif
14021                 /* Now read it back. */
14022                 ret = tg3_do_test_dma(tp, buf, buf_dma, TEST_BUFFER_SIZE, 0);
14023                 if (ret) {
14024                         dev_err(&tp->pdev->dev, "%s: Buffer read failed. "
14025                                 "err = %d\n", __func__, ret);
14026                         break;
14027                 }
14028
14029                 /* Verify it. */
14030                 for (i = 0; i < TEST_BUFFER_SIZE / sizeof(u32); i++) {
14031                         if (p[i] == i)
14032                                 continue;
14033
14034                         if ((tp->dma_rwctrl & DMA_RWCTRL_WRITE_BNDRY_MASK) !=
14035                             DMA_RWCTRL_WRITE_BNDRY_16) {
14036                                 tp->dma_rwctrl &= ~DMA_RWCTRL_WRITE_BNDRY_MASK;
14037                                 tp->dma_rwctrl |= DMA_RWCTRL_WRITE_BNDRY_16;
14038                                 tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
14039                                 break;
14040                         } else {
14041                                 dev_err(&tp->pdev->dev,
14042                                         "%s: Buffer corrupted on read back! "
14043                                         "(%d != %d)\n", __func__, p[i], i);
14044                                 ret = -ENODEV;
14045                                 goto out;
14046                         }
14047                 }
14048
14049                 if (i == (TEST_BUFFER_SIZE / sizeof(u32))) {
14050                         /* Success. */
14051                         ret = 0;
14052                         break;
14053                 }
14054         }
14055         if ((tp->dma_rwctrl & DMA_RWCTRL_WRITE_BNDRY_MASK) !=
14056             DMA_RWCTRL_WRITE_BNDRY_16) {
14057                 static struct pci_device_id dma_wait_state_chipsets[] = {
14058                         { PCI_DEVICE(PCI_VENDOR_ID_APPLE,
14059                                      PCI_DEVICE_ID_APPLE_UNI_N_PCI15) },
14060                         { },
14061                 };
14062
14063                 /* DMA test passed without adjusting DMA boundary,
14064                  * now look for chipsets that are known to expose the
14065                  * DMA bug without failing the test.
14066                  */
14067                 if (pci_dev_present(dma_wait_state_chipsets)) {
14068                         tp->dma_rwctrl &= ~DMA_RWCTRL_WRITE_BNDRY_MASK;
14069                         tp->dma_rwctrl |= DMA_RWCTRL_WRITE_BNDRY_16;
14070                 } else {
14071                         /* Safe to use the calculated DMA boundary. */
14072                         tp->dma_rwctrl = saved_dma_rwctrl;
14073                 }
14074
14075                 tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
14076         }
14077
14078 out:
14079         pci_free_consistent(tp->pdev, TEST_BUFFER_SIZE, buf, buf_dma);
14080 out_nofree:
14081         return ret;
14082 }
14083
14084 static void __devinit tg3_init_link_config(struct tg3 *tp)
14085 {
14086         tp->link_config.advertising =
14087                 (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full |
14088                  ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full |
14089                  ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full |
14090                  ADVERTISED_Autoneg | ADVERTISED_MII);
14091         tp->link_config.speed = SPEED_INVALID;
14092         tp->link_config.duplex = DUPLEX_INVALID;
14093         tp->link_config.autoneg = AUTONEG_ENABLE;
14094         tp->link_config.active_speed = SPEED_INVALID;
14095         tp->link_config.active_duplex = DUPLEX_INVALID;
14096         tp->link_config.phy_is_low_power = 0;
14097         tp->link_config.orig_speed = SPEED_INVALID;
14098         tp->link_config.orig_duplex = DUPLEX_INVALID;
14099         tp->link_config.orig_autoneg = AUTONEG_INVALID;
14100 }
14101
14102 static void __devinit tg3_init_bufmgr_config(struct tg3 *tp)
14103 {
14104         if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 ||
14105             GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765) {
14106                 tp->bufmgr_config.mbuf_read_dma_low_water =
14107                         DEFAULT_MB_RDMA_LOW_WATER_5705;
14108                 tp->bufmgr_config.mbuf_mac_rx_low_water =
14109                         DEFAULT_MB_MACRX_LOW_WATER_57765;
14110                 tp->bufmgr_config.mbuf_high_water =
14111                         DEFAULT_MB_HIGH_WATER_57765;
14112
14113                 tp->bufmgr_config.mbuf_read_dma_low_water_jumbo =
14114                         DEFAULT_MB_RDMA_LOW_WATER_5705;
14115                 tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo =
14116                         DEFAULT_MB_MACRX_LOW_WATER_JUMBO_57765;
14117                 tp->bufmgr_config.mbuf_high_water_jumbo =
14118                         DEFAULT_MB_HIGH_WATER_JUMBO_57765;
14119         } else if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
14120                 tp->bufmgr_config.mbuf_read_dma_low_water =
14121                         DEFAULT_MB_RDMA_LOW_WATER_5705;
14122                 tp->bufmgr_config.mbuf_mac_rx_low_water =
14123                         DEFAULT_MB_MACRX_LOW_WATER_5705;
14124                 tp->bufmgr_config.mbuf_high_water =
14125                         DEFAULT_MB_HIGH_WATER_5705;
14126                 if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
14127                         tp->bufmgr_config.mbuf_mac_rx_low_water =
14128                                 DEFAULT_MB_MACRX_LOW_WATER_5906;
14129                         tp->bufmgr_config.mbuf_high_water =
14130                                 DEFAULT_MB_HIGH_WATER_5906;
14131                 }
14132
14133                 tp->bufmgr_config.mbuf_read_dma_low_water_jumbo =
14134                         DEFAULT_MB_RDMA_LOW_WATER_JUMBO_5780;
14135                 tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo =
14136                         DEFAULT_MB_MACRX_LOW_WATER_JUMBO_5780;
14137                 tp->bufmgr_config.mbuf_high_water_jumbo =
14138                         DEFAULT_MB_HIGH_WATER_JUMBO_5780;
14139         } else {
14140                 tp->bufmgr_config.mbuf_read_dma_low_water =
14141                         DEFAULT_MB_RDMA_LOW_WATER;
14142                 tp->bufmgr_config.mbuf_mac_rx_low_water =
14143                         DEFAULT_MB_MACRX_LOW_WATER;
14144                 tp->bufmgr_config.mbuf_high_water =
14145                         DEFAULT_MB_HIGH_WATER;
14146
14147                 tp->bufmgr_config.mbuf_read_dma_low_water_jumbo =
14148                         DEFAULT_MB_RDMA_LOW_WATER_JUMBO;
14149                 tp->bufmgr_config.mbuf_mac_rx_low_water_jumbo =
14150                         DEFAULT_MB_MACRX_LOW_WATER_JUMBO;
14151                 tp->bufmgr_config.mbuf_high_water_jumbo =
14152                         DEFAULT_MB_HIGH_WATER_JUMBO;
14153         }
14154
14155         tp->bufmgr_config.dma_low_water = DEFAULT_DMA_LOW_WATER;
14156         tp->bufmgr_config.dma_high_water = DEFAULT_DMA_HIGH_WATER;
14157 }
14158
14159 static char * __devinit tg3_phy_string(struct tg3 *tp)
14160 {
14161         switch (tp->phy_id & TG3_PHY_ID_MASK) {
14162         case TG3_PHY_ID_BCM5400:        return "5400";
14163         case TG3_PHY_ID_BCM5401:        return "5401";
14164         case TG3_PHY_ID_BCM5411:        return "5411";
14165         case TG3_PHY_ID_BCM5701:        return "5701";
14166         case TG3_PHY_ID_BCM5703:        return "5703";
14167         case TG3_PHY_ID_BCM5704:        return "5704";
14168         case TG3_PHY_ID_BCM5705:        return "5705";
14169         case TG3_PHY_ID_BCM5750:        return "5750";
14170         case TG3_PHY_ID_BCM5752:        return "5752";
14171         case TG3_PHY_ID_BCM5714:        return "5714";
14172         case TG3_PHY_ID_BCM5780:        return "5780";
14173         case TG3_PHY_ID_BCM5755:        return "5755";
14174         case TG3_PHY_ID_BCM5787:        return "5787";
14175         case TG3_PHY_ID_BCM5784:        return "5784";
14176         case TG3_PHY_ID_BCM5756:        return "5722/5756";
14177         case TG3_PHY_ID_BCM5906:        return "5906";
14178         case TG3_PHY_ID_BCM5761:        return "5761";
14179         case TG3_PHY_ID_BCM5718C:       return "5718C";
14180         case TG3_PHY_ID_BCM5718S:       return "5718S";
14181         case TG3_PHY_ID_BCM57765:       return "57765";
14182         case TG3_PHY_ID_BCM8002:        return "8002/serdes";
14183         case 0:                 return "serdes";
14184         default:                return "unknown";
14185         }
14186 }
14187
14188 static char * __devinit tg3_bus_string(struct tg3 *tp, char *str)
14189 {
14190         if (tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) {
14191                 strcpy(str, "PCI Express");
14192                 return str;
14193         } else if (tp->tg3_flags & TG3_FLAG_PCIX_MODE) {
14194                 u32 clock_ctrl = tr32(TG3PCI_CLOCK_CTRL) & 0x1f;
14195
14196                 strcpy(str, "PCIX:");
14197
14198                 if ((clock_ctrl == 7) ||
14199                     ((tr32(GRC_MISC_CFG) & GRC_MISC_CFG_BOARD_ID_MASK) ==
14200                      GRC_MISC_CFG_BOARD_ID_5704CIOBE))
14201                         strcat(str, "133MHz");
14202                 else if (clock_ctrl == 0)
14203                         strcat(str, "33MHz");
14204                 else if (clock_ctrl == 2)
14205                         strcat(str, "50MHz");
14206                 else if (clock_ctrl == 4)
14207                         strcat(str, "66MHz");
14208                 else if (clock_ctrl == 6)
14209                         strcat(str, "100MHz");
14210         } else {
14211                 strcpy(str, "PCI:");
14212                 if (tp->tg3_flags & TG3_FLAG_PCI_HIGH_SPEED)
14213                         strcat(str, "66MHz");
14214                 else
14215                         strcat(str, "33MHz");
14216         }
14217         if (tp->tg3_flags & TG3_FLAG_PCI_32BIT)
14218                 strcat(str, ":32-bit");
14219         else
14220                 strcat(str, ":64-bit");
14221         return str;
14222 }
14223
14224 static struct pci_dev * __devinit tg3_find_peer(struct tg3 *tp)
14225 {
14226         struct pci_dev *peer;
14227         unsigned int func, devnr = tp->pdev->devfn & ~7;
14228
14229         for (func = 0; func < 8; func++) {
14230                 peer = pci_get_slot(tp->pdev->bus, devnr | func);
14231                 if (peer && peer != tp->pdev)
14232                         break;
14233                 pci_dev_put(peer);
14234         }
14235         /* 5704 can be configured in single-port mode, set peer to
14236          * tp->pdev in that case.
14237          */
14238         if (!peer) {
14239                 peer = tp->pdev;
14240                 return peer;
14241         }
14242
14243         /*
14244          * We don't need to keep the refcount elevated; there's no way
14245          * to remove one half of this device without removing the other
14246          */
14247         pci_dev_put(peer);
14248
14249         return peer;
14250 }
14251
14252 static void __devinit tg3_init_coal(struct tg3 *tp)
14253 {
14254         struct ethtool_coalesce *ec = &tp->coal;
14255
14256         memset(ec, 0, sizeof(*ec));
14257         ec->cmd = ETHTOOL_GCOALESCE;
14258         ec->rx_coalesce_usecs = LOW_RXCOL_TICKS;
14259         ec->tx_coalesce_usecs = LOW_TXCOL_TICKS;
14260         ec->rx_max_coalesced_frames = LOW_RXMAX_FRAMES;
14261         ec->tx_max_coalesced_frames = LOW_TXMAX_FRAMES;
14262         ec->rx_coalesce_usecs_irq = DEFAULT_RXCOAL_TICK_INT;
14263         ec->tx_coalesce_usecs_irq = DEFAULT_TXCOAL_TICK_INT;
14264         ec->rx_max_coalesced_frames_irq = DEFAULT_RXCOAL_MAXF_INT;
14265         ec->tx_max_coalesced_frames_irq = DEFAULT_TXCOAL_MAXF_INT;
14266         ec->stats_block_coalesce_usecs = DEFAULT_STAT_COAL_TICKS;
14267
14268         if (tp->coalesce_mode & (HOSTCC_MODE_CLRTICK_RXBD |
14269                                  HOSTCC_MODE_CLRTICK_TXBD)) {
14270                 ec->rx_coalesce_usecs = LOW_RXCOL_TICKS_CLRTCKS;
14271                 ec->rx_coalesce_usecs_irq = DEFAULT_RXCOAL_TICK_INT_CLRTCKS;
14272                 ec->tx_coalesce_usecs = LOW_TXCOL_TICKS_CLRTCKS;
14273                 ec->tx_coalesce_usecs_irq = DEFAULT_TXCOAL_TICK_INT_CLRTCKS;
14274         }
14275
14276         if (tp->tg3_flags2 & TG3_FLG2_5705_PLUS) {
14277                 ec->rx_coalesce_usecs_irq = 0;
14278                 ec->tx_coalesce_usecs_irq = 0;
14279                 ec->stats_block_coalesce_usecs = 0;
14280         }
14281 }
14282
14283 static const struct net_device_ops tg3_netdev_ops = {
14284         .ndo_open               = tg3_open,
14285         .ndo_stop               = tg3_close,
14286         .ndo_start_xmit         = tg3_start_xmit,
14287         .ndo_get_stats          = tg3_get_stats,
14288         .ndo_validate_addr      = eth_validate_addr,
14289         .ndo_set_multicast_list = tg3_set_rx_mode,
14290         .ndo_set_mac_address    = tg3_set_mac_addr,
14291         .ndo_do_ioctl           = tg3_ioctl,
14292         .ndo_tx_timeout         = tg3_tx_timeout,
14293         .ndo_change_mtu         = tg3_change_mtu,
14294 #if TG3_VLAN_TAG_USED
14295         .ndo_vlan_rx_register   = tg3_vlan_rx_register,
14296 #endif
14297 #ifdef CONFIG_NET_POLL_CONTROLLER
14298         .ndo_poll_controller    = tg3_poll_controller,
14299 #endif
14300 };
14301
14302 static const struct net_device_ops tg3_netdev_ops_dma_bug = {
14303         .ndo_open               = tg3_open,
14304         .ndo_stop               = tg3_close,
14305         .ndo_start_xmit         = tg3_start_xmit_dma_bug,
14306         .ndo_get_stats          = tg3_get_stats,
14307         .ndo_validate_addr      = eth_validate_addr,
14308         .ndo_set_multicast_list = tg3_set_rx_mode,
14309         .ndo_set_mac_address    = tg3_set_mac_addr,
14310         .ndo_do_ioctl           = tg3_ioctl,
14311         .ndo_tx_timeout         = tg3_tx_timeout,
14312         .ndo_change_mtu         = tg3_change_mtu,
14313 #if TG3_VLAN_TAG_USED
14314         .ndo_vlan_rx_register   = tg3_vlan_rx_register,
14315 #endif
14316 #ifdef CONFIG_NET_POLL_CONTROLLER
14317         .ndo_poll_controller    = tg3_poll_controller,
14318 #endif
14319 };
14320
14321 static int __devinit tg3_init_one(struct pci_dev *pdev,
14322                                   const struct pci_device_id *ent)
14323 {
14324         struct net_device *dev;
14325         struct tg3 *tp;
14326         int i, err, pm_cap;
14327         u32 sndmbx, rcvmbx, intmbx;
14328         char str[40];
14329         u64 dma_mask, persist_dma_mask;
14330
14331         printk_once(KERN_INFO "%s\n", version);
14332
14333         err = pci_enable_device(pdev);
14334         if (err) {
14335                 dev_err(&pdev->dev, "Cannot enable PCI device, aborting\n");
14336                 return err;
14337         }
14338
14339         err = pci_request_regions(pdev, DRV_MODULE_NAME);
14340         if (err) {
14341                 dev_err(&pdev->dev, "Cannot obtain PCI resources, aborting\n");
14342                 goto err_out_disable_pdev;
14343         }
14344
14345         pci_set_master(pdev);
14346
14347         /* Find power-management capability. */
14348         pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM);
14349         if (pm_cap == 0) {
14350                 dev_err(&pdev->dev,
14351                         "Cannot find Power Management capability, aborting\n");
14352                 err = -EIO;
14353                 goto err_out_free_res;
14354         }
14355
14356         dev = alloc_etherdev_mq(sizeof(*tp), TG3_IRQ_MAX_VECS);
14357         if (!dev) {
14358                 dev_err(&pdev->dev, "Etherdev alloc failed, aborting\n");
14359                 err = -ENOMEM;
14360                 goto err_out_free_res;
14361         }
14362
14363         SET_NETDEV_DEV(dev, &pdev->dev);
14364
14365 #if TG3_VLAN_TAG_USED
14366         dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
14367 #endif
14368
14369         tp = netdev_priv(dev);
14370         tp->pdev = pdev;
14371         tp->dev = dev;
14372         tp->pm_cap = pm_cap;
14373         tp->rx_mode = TG3_DEF_RX_MODE;
14374         tp->tx_mode = TG3_DEF_TX_MODE;
14375
14376         if (tg3_debug > 0)
14377                 tp->msg_enable = tg3_debug;
14378         else
14379                 tp->msg_enable = TG3_DEF_MSG_ENABLE;
14380
14381         /* The word/byte swap controls here control register access byte
14382          * swapping.  DMA data byte swapping is controlled in the GRC_MODE
14383          * setting below.
14384          */
14385         tp->misc_host_ctrl =
14386                 MISC_HOST_CTRL_MASK_PCI_INT |
14387                 MISC_HOST_CTRL_WORD_SWAP |
14388                 MISC_HOST_CTRL_INDIR_ACCESS |
14389                 MISC_HOST_CTRL_PCISTATE_RW;
14390
14391         /* The NONFRM (non-frame) byte/word swap controls take effect
14392          * on descriptor entries, anything which isn't packet data.
14393          *
14394          * The StrongARM chips on the board (one for tx, one for rx)
14395          * are running in big-endian mode.
14396          */
14397         tp->grc_mode = (GRC_MODE_WSWAP_DATA | GRC_MODE_BSWAP_DATA |
14398                         GRC_MODE_WSWAP_NONFRM_DATA);
14399 #ifdef __BIG_ENDIAN
14400         tp->grc_mode |= GRC_MODE_BSWAP_NONFRM_DATA;
14401 #endif
14402         spin_lock_init(&tp->lock);
14403         spin_lock_init(&tp->indirect_lock);
14404         INIT_WORK(&tp->reset_task, tg3_reset_task);
14405
14406         tp->regs = pci_ioremap_bar(pdev, BAR_0);
14407         if (!tp->regs) {
14408                 dev_err(&pdev->dev, "Cannot map device registers, aborting\n");
14409                 err = -ENOMEM;
14410                 goto err_out_free_dev;
14411         }
14412
14413         tg3_init_link_config(tp);
14414
14415         tp->rx_pending = TG3_DEF_RX_RING_PENDING;
14416         tp->rx_jumbo_pending = TG3_DEF_RX_JUMBO_RING_PENDING;
14417
14418         dev->ethtool_ops = &tg3_ethtool_ops;
14419         dev->watchdog_timeo = TG3_TX_TIMEOUT;
14420         dev->irq = pdev->irq;
14421
14422         err = tg3_get_invariants(tp);
14423         if (err) {
14424                 dev_err(&pdev->dev,
14425                         "Problem fetching invariants of chip, aborting\n");
14426                 goto err_out_iounmap;
14427         }
14428
14429         if ((tp->tg3_flags3 & TG3_FLG3_5755_PLUS) &&
14430             tp->pci_chip_rev_id != CHIPREV_ID_5717_A0)
14431                 dev->netdev_ops = &tg3_netdev_ops;
14432         else
14433                 dev->netdev_ops = &tg3_netdev_ops_dma_bug;
14434
14435
14436         /* The EPB bridge inside 5714, 5715, and 5780 and any
14437          * device behind the EPB cannot support DMA addresses > 40-bit.
14438          * On 64-bit systems with IOMMU, use 40-bit dma_mask.
14439          * On 64-bit systems without IOMMU, use 64-bit dma_mask and
14440          * do DMA address check in tg3_start_xmit().
14441          */
14442         if (tp->tg3_flags2 & TG3_FLG2_IS_5788)
14443                 persist_dma_mask = dma_mask = DMA_BIT_MASK(32);
14444         else if (tp->tg3_flags & TG3_FLAG_40BIT_DMA_BUG) {
14445                 persist_dma_mask = dma_mask = DMA_BIT_MASK(40);
14446 #ifdef CONFIG_HIGHMEM
14447                 dma_mask = DMA_BIT_MASK(64);
14448 #endif
14449         } else
14450                 persist_dma_mask = dma_mask = DMA_BIT_MASK(64);
14451
14452         /* Configure DMA attributes. */
14453         if (dma_mask > DMA_BIT_MASK(32)) {
14454                 err = pci_set_dma_mask(pdev, dma_mask);
14455                 if (!err) {
14456                         dev->features |= NETIF_F_HIGHDMA;
14457                         err = pci_set_consistent_dma_mask(pdev,
14458                                                           persist_dma_mask);
14459                         if (err < 0) {
14460                                 dev_err(&pdev->dev, "Unable to obtain 64 bit "
14461                                         "DMA for consistent allocations\n");
14462                                 goto err_out_iounmap;
14463                         }
14464                 }
14465         }
14466         if (err || dma_mask == DMA_BIT_MASK(32)) {
14467                 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
14468                 if (err) {
14469                         dev_err(&pdev->dev,
14470                                 "No usable DMA configuration, aborting\n");
14471                         goto err_out_iounmap;
14472                 }
14473         }
14474
14475         tg3_init_bufmgr_config(tp);
14476
14477         /* Selectively allow TSO based on operating conditions */
14478         if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO) ||
14479             (tp->fw_needed && !(tp->tg3_flags & TG3_FLAG_ENABLE_ASF)))
14480                 tp->tg3_flags2 |= TG3_FLG2_TSO_CAPABLE;
14481         else {
14482                 tp->tg3_flags2 &= ~(TG3_FLG2_TSO_CAPABLE | TG3_FLG2_TSO_BUG);
14483                 tp->fw_needed = NULL;
14484         }
14485
14486         if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0)
14487                 tp->fw_needed = FIRMWARE_TG3;
14488
14489         /* TSO is on by default on chips that support hardware TSO.
14490          * Firmware TSO on older chips gives lower performance, so it
14491          * is off by default, but can be enabled using ethtool.
14492          */
14493         if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO) &&
14494             (dev->features & NETIF_F_IP_CSUM))
14495                 dev->features |= NETIF_F_TSO;
14496
14497         if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_2) ||
14498             (tp->tg3_flags2 & TG3_FLG2_HW_TSO_3)) {
14499                 if (dev->features & NETIF_F_IPV6_CSUM)
14500                         dev->features |= NETIF_F_TSO6;
14501                 if ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_3) ||
14502                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761 ||
14503                     (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
14504                      GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) ||
14505                         GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5785 ||
14506                     GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780)
14507                         dev->features |= NETIF_F_TSO_ECN;
14508         }
14509
14510         if (tp->pci_chip_rev_id == CHIPREV_ID_5705_A1 &&
14511             !(tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) &&
14512             !(tr32(TG3PCI_PCISTATE) & PCISTATE_BUS_SPEED_HIGH)) {
14513                 tp->tg3_flags2 |= TG3_FLG2_MAX_RXPEND_64;
14514                 tp->rx_pending = 63;
14515         }
14516
14517         err = tg3_get_device_address(tp);
14518         if (err) {
14519                 dev_err(&pdev->dev,
14520                         "Could not obtain valid ethernet address, aborting\n");
14521                 goto err_out_iounmap;
14522         }
14523
14524         if (tp->tg3_flags3 & TG3_FLG3_ENABLE_APE) {
14525                 tp->aperegs = pci_ioremap_bar(pdev, BAR_2);
14526                 if (!tp->aperegs) {
14527                         dev_err(&pdev->dev,
14528                                 "Cannot map APE registers, aborting\n");
14529                         err = -ENOMEM;
14530                         goto err_out_iounmap;
14531                 }
14532
14533                 tg3_ape_lock_init(tp);
14534
14535                 if (tp->tg3_flags & TG3_FLAG_ENABLE_ASF)
14536                         tg3_read_dash_ver(tp);
14537         }
14538
14539         /*
14540          * Reset chip in case UNDI or EFI driver did not shutdown
14541          * DMA self test will enable WDMAC and we'll see (spurious)
14542          * pending DMA on the PCI bus at that point.
14543          */
14544         if ((tr32(HOSTCC_MODE) & HOSTCC_MODE_ENABLE) ||
14545             (tr32(WDMAC_MODE) & WDMAC_MODE_ENABLE)) {
14546                 tw32(MEMARB_MODE, MEMARB_MODE_ENABLE);
14547                 tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
14548         }
14549
14550         err = tg3_test_dma(tp);
14551         if (err) {
14552                 dev_err(&pdev->dev, "DMA engine test failed, aborting\n");
14553                 goto err_out_apeunmap;
14554         }
14555
14556         /* flow control autonegotiation is default behavior */
14557         tp->tg3_flags |= TG3_FLAG_PAUSE_AUTONEG;
14558         tp->link_config.flowctrl = FLOW_CTRL_TX | FLOW_CTRL_RX;
14559
14560         intmbx = MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW;
14561         rcvmbx = MAILBOX_RCVRET_CON_IDX_0 + TG3_64BIT_REG_LOW;
14562         sndmbx = MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW;
14563         for (i = 0; i < TG3_IRQ_MAX_VECS; i++) {
14564                 struct tg3_napi *tnapi = &tp->napi[i];
14565
14566                 tnapi->tp = tp;
14567                 tnapi->tx_pending = TG3_DEF_TX_RING_PENDING;
14568
14569                 tnapi->int_mbox = intmbx;
14570                 if (i < 4)
14571                         intmbx += 0x8;
14572                 else
14573                         intmbx += 0x4;
14574
14575                 tnapi->consmbox = rcvmbx;
14576                 tnapi->prodmbox = sndmbx;
14577
14578                 if (i) {
14579                         tnapi->coal_now = HOSTCC_MODE_COAL_VEC1_NOW << (i - 1);
14580                         netif_napi_add(dev, &tnapi->napi, tg3_poll_msix, 64);
14581                 } else {
14582                         tnapi->coal_now = HOSTCC_MODE_NOW;
14583                         netif_napi_add(dev, &tnapi->napi, tg3_poll, 64);
14584                 }
14585
14586                 if (!(tp->tg3_flags & TG3_FLAG_SUPPORT_MSIX))
14587                         break;
14588
14589                 /*
14590                  * If we support MSIX, we'll be using RSS.  If we're using
14591                  * RSS, the first vector only handles link interrupts and the
14592                  * remaining vectors handle rx and tx interrupts.  Reuse the
14593                  * mailbox values for the next iteration.  The values we setup
14594                  * above are still useful for the single vectored mode.
14595                  */
14596                 if (!i)
14597                         continue;
14598
14599                 rcvmbx += 0x8;
14600
14601                 if (sndmbx & 0x4)
14602                         sndmbx -= 0x4;
14603                 else
14604                         sndmbx += 0xc;
14605         }
14606
14607         tg3_init_coal(tp);
14608
14609         pci_set_drvdata(pdev, dev);
14610
14611         err = register_netdev(dev);
14612         if (err) {
14613                 dev_err(&pdev->dev, "Cannot register net device, aborting\n");
14614                 goto err_out_apeunmap;
14615         }
14616
14617         netdev_info(dev, "Tigon3 [partno(%s) rev %04x] (%s) MAC address %pM\n",
14618                     tp->board_part_number,
14619                     tp->pci_chip_rev_id,
14620                     tg3_bus_string(tp, str),
14621                     dev->dev_addr);
14622
14623         if (tp->tg3_flags3 & TG3_FLG3_PHY_CONNECTED) {
14624                 struct phy_device *phydev;
14625                 phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
14626                 netdev_info(dev,
14627                             "attached PHY driver [%s] (mii_bus:phy_addr=%s)\n",
14628                             phydev->drv->name, dev_name(&phydev->dev));
14629         } else
14630                 netdev_info(dev, "attached PHY is %s (%s Ethernet) "
14631                             "(WireSpeed[%d])\n", tg3_phy_string(tp),
14632                             ((tp->tg3_flags & TG3_FLAG_10_100_ONLY) ? "10/100Base-TX" :
14633                              ((tp->tg3_flags2 & TG3_FLG2_ANY_SERDES) ? "1000Base-SX" :
14634                               "10/100/1000Base-T")),
14635                             (tp->tg3_flags2 & TG3_FLG2_NO_ETH_WIRE_SPEED) == 0);
14636
14637         netdev_info(dev, "RXcsums[%d] LinkChgREG[%d] MIirq[%d] ASF[%d] TSOcap[%d]\n",
14638                     (tp->tg3_flags & TG3_FLAG_RX_CHECKSUMS) != 0,
14639                     (tp->tg3_flags & TG3_FLAG_USE_LINKCHG_REG) != 0,
14640                     (tp->tg3_flags & TG3_FLAG_USE_MI_INTERRUPT) != 0,
14641                     (tp->tg3_flags & TG3_FLAG_ENABLE_ASF) != 0,
14642                     (tp->tg3_flags2 & TG3_FLG2_TSO_CAPABLE) != 0);
14643         netdev_info(dev, "dma_rwctrl[%08x] dma_mask[%d-bit]\n",
14644                     tp->dma_rwctrl,
14645                     pdev->dma_mask == DMA_BIT_MASK(32) ? 32 :
14646                     ((u64)pdev->dma_mask) == DMA_BIT_MASK(40) ? 40 : 64);
14647
14648         return 0;
14649
14650 err_out_apeunmap:
14651         if (tp->aperegs) {
14652                 iounmap(tp->aperegs);
14653                 tp->aperegs = NULL;
14654         }
14655
14656 err_out_iounmap:
14657         if (tp->regs) {
14658                 iounmap(tp->regs);
14659                 tp->regs = NULL;
14660         }
14661
14662 err_out_free_dev:
14663         free_netdev(dev);
14664
14665 err_out_free_res:
14666         pci_release_regions(pdev);
14667
14668 err_out_disable_pdev:
14669         pci_disable_device(pdev);
14670         pci_set_drvdata(pdev, NULL);
14671         return err;
14672 }
14673
14674 static void __devexit tg3_remove_one(struct pci_dev *pdev)
14675 {
14676         struct net_device *dev = pci_get_drvdata(pdev);
14677
14678         if (dev) {
14679                 struct tg3 *tp = netdev_priv(dev);
14680
14681                 if (tp->fw)
14682                         release_firmware(tp->fw);
14683
14684                 flush_scheduled_work();
14685
14686                 if (tp->tg3_flags3 & TG3_FLG3_USE_PHYLIB) {
14687                         tg3_phy_fini(tp);
14688                         tg3_mdio_fini(tp);
14689                 }
14690
14691                 unregister_netdev(dev);
14692                 if (tp->aperegs) {
14693                         iounmap(tp->aperegs);
14694                         tp->aperegs = NULL;
14695                 }
14696                 if (tp->regs) {
14697                         iounmap(tp->regs);
14698                         tp->regs = NULL;
14699                 }
14700                 free_netdev(dev);
14701                 pci_release_regions(pdev);
14702                 pci_disable_device(pdev);
14703                 pci_set_drvdata(pdev, NULL);
14704         }
14705 }
14706
14707 static int tg3_suspend(struct pci_dev *pdev, pm_message_t state)
14708 {
14709         struct net_device *dev = pci_get_drvdata(pdev);
14710         struct tg3 *tp = netdev_priv(dev);
14711         pci_power_t target_state;
14712         int err;
14713
14714         /* PCI register 4 needs to be saved whether netif_running() or not.
14715          * MSI address and data need to be saved if using MSI and
14716          * netif_running().
14717          */
14718         pci_save_state(pdev);
14719
14720         if (!netif_running(dev))
14721                 return 0;
14722
14723         flush_scheduled_work();
14724         tg3_phy_stop(tp);
14725         tg3_netif_stop(tp);
14726
14727         del_timer_sync(&tp->timer);
14728
14729         tg3_full_lock(tp, 1);
14730         tg3_disable_ints(tp);
14731         tg3_full_unlock(tp);
14732
14733         netif_device_detach(dev);
14734
14735         tg3_full_lock(tp, 0);
14736         tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
14737         tp->tg3_flags &= ~TG3_FLAG_INIT_COMPLETE;
14738         tg3_full_unlock(tp);
14739
14740         target_state = pdev->pm_cap ? pci_target_state(pdev) : PCI_D3hot;
14741
14742         err = tg3_set_power_state(tp, target_state);
14743         if (err) {
14744                 int err2;
14745
14746                 tg3_full_lock(tp, 0);
14747
14748                 tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
14749                 err2 = tg3_restart_hw(tp, 1);
14750                 if (err2)
14751                         goto out;
14752
14753                 tp->timer.expires = jiffies + tp->timer_offset;
14754                 add_timer(&tp->timer);
14755
14756                 netif_device_attach(dev);
14757                 tg3_netif_start(tp);
14758
14759 out:
14760                 tg3_full_unlock(tp);
14761
14762                 if (!err2)
14763                         tg3_phy_start(tp);
14764         }
14765
14766         return err;
14767 }
14768
14769 static int tg3_resume(struct pci_dev *pdev)
14770 {
14771         struct net_device *dev = pci_get_drvdata(pdev);
14772         struct tg3 *tp = netdev_priv(dev);
14773         int err;
14774
14775         pci_restore_state(tp->pdev);
14776
14777         if (!netif_running(dev))
14778                 return 0;
14779
14780         err = tg3_set_power_state(tp, PCI_D0);
14781         if (err)
14782                 return err;
14783
14784         netif_device_attach(dev);
14785
14786         tg3_full_lock(tp, 0);
14787
14788         tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
14789         err = tg3_restart_hw(tp, 1);
14790         if (err)
14791                 goto out;
14792
14793         tp->timer.expires = jiffies + tp->timer_offset;
14794         add_timer(&tp->timer);
14795
14796         tg3_netif_start(tp);
14797
14798 out:
14799         tg3_full_unlock(tp);
14800
14801         if (!err)
14802                 tg3_phy_start(tp);
14803
14804         return err;
14805 }
14806
14807 static struct pci_driver tg3_driver = {
14808         .name           = DRV_MODULE_NAME,
14809         .id_table       = tg3_pci_tbl,
14810         .probe          = tg3_init_one,
14811         .remove         = __devexit_p(tg3_remove_one),
14812         .suspend        = tg3_suspend,
14813         .resume         = tg3_resume
14814 };
14815
14816 static int __init tg3_init(void)
14817 {
14818         return pci_register_driver(&tg3_driver);
14819 }
14820
14821 static void __exit tg3_cleanup(void)
14822 {
14823         pci_unregister_driver(&tg3_driver);
14824 }
14825
14826 module_init(tg3_init);
14827 module_exit(tg3_cleanup);