8798 lines · c
1/* bnx2.c: QLogic bnx2 network driver.2 *3 * Copyright (c) 2004-2014 Broadcom Corporation4 * Copyright (c) 2014-2015 QLogic Corporation5 *6 * This program is free software; you can redistribute it and/or modify7 * it under the terms of the GNU General Public License as published by8 * the Free Software Foundation.9 *10 * Written by: Michael Chan (mchan@broadcom.com)11 */12 13#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt14 15#include <linux/module.h>16#include <linux/moduleparam.h>17 18#include <linux/stringify.h>19#include <linux/kernel.h>20#include <linux/timer.h>21#include <linux/errno.h>22#include <linux/ioport.h>23#include <linux/slab.h>24#include <linux/vmalloc.h>25#include <linux/interrupt.h>26#include <linux/pci.h>27#include <linux/netdevice.h>28#include <linux/etherdevice.h>29#include <linux/skbuff.h>30#include <linux/dma-mapping.h>31#include <linux/bitops.h>32#include <asm/io.h>33#include <asm/irq.h>34#include <linux/delay.h>35#include <asm/byteorder.h>36#include <asm/page.h>37#include <linux/time.h>38#include <linux/ethtool.h>39#include <linux/mii.h>40#include <linux/if.h>41#include <linux/if_vlan.h>42#include <net/ip.h>43#include <net/tcp.h>44#include <net/checksum.h>45#include <linux/workqueue.h>46#include <linux/crc32.h>47#include <linux/prefetch.h>48#include <linux/cache.h>49#include <linux/firmware.h>50#include <linux/log2.h>51#include <linux/crash_dump.h>52 53#if IS_ENABLED(CONFIG_CNIC)54#define BCM_CNIC 155#include "cnic_if.h"56#endif57#include "bnx2.h"58#include "bnx2_fw.h"59 60#define DRV_MODULE_NAME "bnx2"61#define FW_MIPS_FILE_06 "bnx2/bnx2-mips-06-6.2.3.fw"62#define FW_RV2P_FILE_06 "bnx2/bnx2-rv2p-06-6.0.15.fw"63#define FW_MIPS_FILE_09 "bnx2/bnx2-mips-09-6.2.1b.fw"64#define FW_RV2P_FILE_09_Ax "bnx2/bnx2-rv2p-09ax-6.0.17.fw"65#define FW_RV2P_FILE_09 "bnx2/bnx2-rv2p-09-6.0.17.fw"66 67#define RUN_AT(x) (jiffies + (x))68 69/* Time in jiffies before concluding the transmitter is hung. */70#define TX_TIMEOUT (5*HZ)71 72MODULE_AUTHOR("Michael Chan <mchan@broadcom.com>");73MODULE_DESCRIPTION("QLogic BCM5706/5708/5709/5716 Driver");74MODULE_LICENSE("GPL");75MODULE_FIRMWARE(FW_MIPS_FILE_06);76MODULE_FIRMWARE(FW_RV2P_FILE_06);77MODULE_FIRMWARE(FW_MIPS_FILE_09);78MODULE_FIRMWARE(FW_RV2P_FILE_09);79MODULE_FIRMWARE(FW_RV2P_FILE_09_Ax);80 81static int disable_msi = 0;82 83module_param(disable_msi, int, 0444);84MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)");85 86typedef enum {87 BCM5706 = 0,88 NC370T,89 NC370I,90 BCM5706S,91 NC370F,92 BCM5708,93 BCM5708S,94 BCM5709,95 BCM5709S,96 BCM5716,97 BCM5716S,98} board_t;99 100/* indexed by board_t, above */101static struct {102 char *name;103} board_info[] = {104 { "Broadcom NetXtreme II BCM5706 1000Base-T" },105 { "HP NC370T Multifunction Gigabit Server Adapter" },106 { "HP NC370i Multifunction Gigabit Server Adapter" },107 { "Broadcom NetXtreme II BCM5706 1000Base-SX" },108 { "HP NC370F Multifunction Gigabit Server Adapter" },109 { "Broadcom NetXtreme II BCM5708 1000Base-T" },110 { "Broadcom NetXtreme II BCM5708 1000Base-SX" },111 { "Broadcom NetXtreme II BCM5709 1000Base-T" },112 { "Broadcom NetXtreme II BCM5709 1000Base-SX" },113 { "Broadcom NetXtreme II BCM5716 1000Base-T" },114 { "Broadcom NetXtreme II BCM5716 1000Base-SX" },115 };116 117static const struct pci_device_id bnx2_pci_tbl[] = {118 { PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_NX2_5706,119 PCI_VENDOR_ID_HP, 0x3101, 0, 0, NC370T },120 { PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_NX2_5706,121 PCI_VENDOR_ID_HP, 0x3106, 0, 0, NC370I },122 { PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_NX2_5706,123 PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5706 },124 { PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_NX2_5708,125 PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5708 },126 { PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_NX2_5706S,127 PCI_VENDOR_ID_HP, 0x3102, 0, 0, NC370F },128 { PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_NX2_5706S,129 PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5706S },130 { PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_NX2_5708S,131 PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5708S },132 { PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_NX2_5709,133 PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5709 },134 { PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_NX2_5709S,135 PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5709S },136 { PCI_VENDOR_ID_BROADCOM, 0x163b,137 PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5716 },138 { PCI_VENDOR_ID_BROADCOM, 0x163c,139 PCI_ANY_ID, PCI_ANY_ID, 0, 0, BCM5716S },140 { 0, }141};142 143static const struct flash_spec flash_table[] =144{145#define BUFFERED_FLAGS (BNX2_NV_BUFFERED | BNX2_NV_TRANSLATE)146#define NONBUFFERED_FLAGS (BNX2_NV_WREN)147 /* Slow EEPROM */148 {0x00000000, 0x40830380, 0x009f0081, 0xa184a053, 0xaf000400,149 BUFFERED_FLAGS, SEEPROM_PAGE_BITS, SEEPROM_PAGE_SIZE,150 SEEPROM_BYTE_ADDR_MASK, SEEPROM_TOTAL_SIZE,151 "EEPROM - slow"},152 /* Expansion entry 0001 */153 {0x08000002, 0x4b808201, 0x00050081, 0x03840253, 0xaf020406,154 NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,155 SAIFUN_FLASH_BYTE_ADDR_MASK, 0,156 "Entry 0001"},157 /* Saifun SA25F010 (non-buffered flash) */158 /* strap, cfg1, & write1 need updates */159 {0x04000001, 0x47808201, 0x00050081, 0x03840253, 0xaf020406,160 NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,161 SAIFUN_FLASH_BYTE_ADDR_MASK, SAIFUN_FLASH_BASE_TOTAL_SIZE*2,162 "Non-buffered flash (128kB)"},163 /* Saifun SA25F020 (non-buffered flash) */164 /* strap, cfg1, & write1 need updates */165 {0x0c000003, 0x4f808201, 0x00050081, 0x03840253, 0xaf020406,166 NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,167 SAIFUN_FLASH_BYTE_ADDR_MASK, SAIFUN_FLASH_BASE_TOTAL_SIZE*4,168 "Non-buffered flash (256kB)"},169 /* Expansion entry 0100 */170 {0x11000000, 0x53808201, 0x00050081, 0x03840253, 0xaf020406,171 NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,172 SAIFUN_FLASH_BYTE_ADDR_MASK, 0,173 "Entry 0100"},174 /* Entry 0101: ST M45PE10 (non-buffered flash, TetonII B0) */175 {0x19000002, 0x5b808201, 0x000500db, 0x03840253, 0xaf020406,176 NONBUFFERED_FLAGS, ST_MICRO_FLASH_PAGE_BITS, ST_MICRO_FLASH_PAGE_SIZE,177 ST_MICRO_FLASH_BYTE_ADDR_MASK, ST_MICRO_FLASH_BASE_TOTAL_SIZE*2,178 "Entry 0101: ST M45PE10 (128kB non-buffered)"},179 /* Entry 0110: ST M45PE20 (non-buffered flash)*/180 {0x15000001, 0x57808201, 0x000500db, 0x03840253, 0xaf020406,181 NONBUFFERED_FLAGS, ST_MICRO_FLASH_PAGE_BITS, ST_MICRO_FLASH_PAGE_SIZE,182 ST_MICRO_FLASH_BYTE_ADDR_MASK, ST_MICRO_FLASH_BASE_TOTAL_SIZE*4,183 "Entry 0110: ST M45PE20 (256kB non-buffered)"},184 /* Saifun SA25F005 (non-buffered flash) */185 /* strap, cfg1, & write1 need updates */186 {0x1d000003, 0x5f808201, 0x00050081, 0x03840253, 0xaf020406,187 NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,188 SAIFUN_FLASH_BYTE_ADDR_MASK, SAIFUN_FLASH_BASE_TOTAL_SIZE,189 "Non-buffered flash (64kB)"},190 /* Fast EEPROM */191 {0x22000000, 0x62808380, 0x009f0081, 0xa184a053, 0xaf000400,192 BUFFERED_FLAGS, SEEPROM_PAGE_BITS, SEEPROM_PAGE_SIZE,193 SEEPROM_BYTE_ADDR_MASK, SEEPROM_TOTAL_SIZE,194 "EEPROM - fast"},195 /* Expansion entry 1001 */196 {0x2a000002, 0x6b808201, 0x00050081, 0x03840253, 0xaf020406,197 NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,198 SAIFUN_FLASH_BYTE_ADDR_MASK, 0,199 "Entry 1001"},200 /* Expansion entry 1010 */201 {0x26000001, 0x67808201, 0x00050081, 0x03840253, 0xaf020406,202 NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,203 SAIFUN_FLASH_BYTE_ADDR_MASK, 0,204 "Entry 1010"},205 /* ATMEL AT45DB011B (buffered flash) */206 {0x2e000003, 0x6e808273, 0x00570081, 0x68848353, 0xaf000400,207 BUFFERED_FLAGS, BUFFERED_FLASH_PAGE_BITS, BUFFERED_FLASH_PAGE_SIZE,208 BUFFERED_FLASH_BYTE_ADDR_MASK, BUFFERED_FLASH_TOTAL_SIZE,209 "Buffered flash (128kB)"},210 /* Expansion entry 1100 */211 {0x33000000, 0x73808201, 0x00050081, 0x03840253, 0xaf020406,212 NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,213 SAIFUN_FLASH_BYTE_ADDR_MASK, 0,214 "Entry 1100"},215 /* Expansion entry 1101 */216 {0x3b000002, 0x7b808201, 0x00050081, 0x03840253, 0xaf020406,217 NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,218 SAIFUN_FLASH_BYTE_ADDR_MASK, 0,219 "Entry 1101"},220 /* Ateml Expansion entry 1110 */221 {0x37000001, 0x76808273, 0x00570081, 0x68848353, 0xaf000400,222 BUFFERED_FLAGS, BUFFERED_FLASH_PAGE_BITS, BUFFERED_FLASH_PAGE_SIZE,223 BUFFERED_FLASH_BYTE_ADDR_MASK, 0,224 "Entry 1110 (Atmel)"},225 /* ATMEL AT45DB021B (buffered flash) */226 {0x3f000003, 0x7e808273, 0x00570081, 0x68848353, 0xaf000400,227 BUFFERED_FLAGS, BUFFERED_FLASH_PAGE_BITS, BUFFERED_FLASH_PAGE_SIZE,228 BUFFERED_FLASH_BYTE_ADDR_MASK, BUFFERED_FLASH_TOTAL_SIZE*2,229 "Buffered flash (256kB)"},230};231 232static const struct flash_spec flash_5709 = {233 .flags = BNX2_NV_BUFFERED,234 .page_bits = BCM5709_FLASH_PAGE_BITS,235 .page_size = BCM5709_FLASH_PAGE_SIZE,236 .addr_mask = BCM5709_FLASH_BYTE_ADDR_MASK,237 .total_size = BUFFERED_FLASH_TOTAL_SIZE*2,238 .name = "5709 Buffered flash (256kB)",239};240 241MODULE_DEVICE_TABLE(pci, bnx2_pci_tbl);242 243static void bnx2_init_napi(struct bnx2 *bp);244static void bnx2_del_napi(struct bnx2 *bp);245 246static inline u32 bnx2_tx_avail(struct bnx2 *bp, struct bnx2_tx_ring_info *txr)247{248 u32 diff;249 250 /* The ring uses 256 indices for 255 entries, one of them251 * needs to be skipped.252 */253 diff = READ_ONCE(txr->tx_prod) - READ_ONCE(txr->tx_cons);254 if (unlikely(diff >= BNX2_TX_DESC_CNT)) {255 diff &= 0xffff;256 if (diff == BNX2_TX_DESC_CNT)257 diff = BNX2_MAX_TX_DESC_CNT;258 }259 return bp->tx_ring_size - diff;260}261 262static u32263bnx2_reg_rd_ind(struct bnx2 *bp, u32 offset)264{265 unsigned long flags;266 u32 val;267 268 spin_lock_irqsave(&bp->indirect_lock, flags);269 BNX2_WR(bp, BNX2_PCICFG_REG_WINDOW_ADDRESS, offset);270 val = BNX2_RD(bp, BNX2_PCICFG_REG_WINDOW);271 spin_unlock_irqrestore(&bp->indirect_lock, flags);272 return val;273}274 275static void276bnx2_reg_wr_ind(struct bnx2 *bp, u32 offset, u32 val)277{278 unsigned long flags;279 280 spin_lock_irqsave(&bp->indirect_lock, flags);281 BNX2_WR(bp, BNX2_PCICFG_REG_WINDOW_ADDRESS, offset);282 BNX2_WR(bp, BNX2_PCICFG_REG_WINDOW, val);283 spin_unlock_irqrestore(&bp->indirect_lock, flags);284}285 286static void287bnx2_shmem_wr(struct bnx2 *bp, u32 offset, u32 val)288{289 bnx2_reg_wr_ind(bp, bp->shmem_base + offset, val);290}291 292static u32293bnx2_shmem_rd(struct bnx2 *bp, u32 offset)294{295 return bnx2_reg_rd_ind(bp, bp->shmem_base + offset);296}297 298static void299bnx2_ctx_wr(struct bnx2 *bp, u32 cid_addr, u32 offset, u32 val)300{301 unsigned long flags;302 303 offset += cid_addr;304 spin_lock_irqsave(&bp->indirect_lock, flags);305 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {306 int i;307 308 BNX2_WR(bp, BNX2_CTX_CTX_DATA, val);309 BNX2_WR(bp, BNX2_CTX_CTX_CTRL,310 offset | BNX2_CTX_CTX_CTRL_WRITE_REQ);311 for (i = 0; i < 5; i++) {312 val = BNX2_RD(bp, BNX2_CTX_CTX_CTRL);313 if ((val & BNX2_CTX_CTX_CTRL_WRITE_REQ) == 0)314 break;315 udelay(5);316 }317 } else {318 BNX2_WR(bp, BNX2_CTX_DATA_ADR, offset);319 BNX2_WR(bp, BNX2_CTX_DATA, val);320 }321 spin_unlock_irqrestore(&bp->indirect_lock, flags);322}323 324#ifdef BCM_CNIC325static int326bnx2_drv_ctl(struct net_device *dev, struct drv_ctl_info *info)327{328 struct bnx2 *bp = netdev_priv(dev);329 struct drv_ctl_io *io = &info->data.io;330 331 switch (info->cmd) {332 case DRV_CTL_IO_WR_CMD:333 bnx2_reg_wr_ind(bp, io->offset, io->data);334 break;335 case DRV_CTL_IO_RD_CMD:336 io->data = bnx2_reg_rd_ind(bp, io->offset);337 break;338 case DRV_CTL_CTX_WR_CMD:339 bnx2_ctx_wr(bp, io->cid_addr, io->offset, io->data);340 break;341 default:342 return -EINVAL;343 }344 return 0;345}346 347static void bnx2_setup_cnic_irq_info(struct bnx2 *bp)348{349 struct cnic_eth_dev *cp = &bp->cnic_eth_dev;350 struct bnx2_napi *bnapi = &bp->bnx2_napi[0];351 int sb_id;352 353 if (bp->flags & BNX2_FLAG_USING_MSIX) {354 cp->drv_state |= CNIC_DRV_STATE_USING_MSIX;355 bnapi->cnic_present = 0;356 sb_id = bp->irq_nvecs;357 cp->irq_arr[0].irq_flags |= CNIC_IRQ_FL_MSIX;358 } else {359 cp->drv_state &= ~CNIC_DRV_STATE_USING_MSIX;360 bnapi->cnic_tag = bnapi->last_status_idx;361 bnapi->cnic_present = 1;362 sb_id = 0;363 cp->irq_arr[0].irq_flags &= ~CNIC_IRQ_FL_MSIX;364 }365 366 cp->irq_arr[0].vector = bp->irq_tbl[sb_id].vector;367 cp->irq_arr[0].status_blk = (void *)368 ((unsigned long) bnapi->status_blk.msi +369 (BNX2_SBLK_MSIX_ALIGN_SIZE * sb_id));370 cp->irq_arr[0].status_blk_map = bp->status_blk_mapping;371 cp->irq_arr[0].status_blk_num = sb_id;372 cp->num_irq = 1;373}374 375static int bnx2_register_cnic(struct net_device *dev, struct cnic_ops *ops,376 void *data)377{378 struct bnx2 *bp = netdev_priv(dev);379 struct cnic_eth_dev *cp = &bp->cnic_eth_dev;380 381 if (!ops)382 return -EINVAL;383 384 if (cp->drv_state & CNIC_DRV_STATE_REGD)385 return -EBUSY;386 387 if (!bnx2_reg_rd_ind(bp, BNX2_FW_MAX_ISCSI_CONN))388 return -ENODEV;389 390 bp->cnic_data = data;391 rcu_assign_pointer(bp->cnic_ops, ops);392 393 cp->num_irq = 0;394 cp->drv_state = CNIC_DRV_STATE_REGD;395 396 bnx2_setup_cnic_irq_info(bp);397 398 return 0;399}400 401static int bnx2_unregister_cnic(struct net_device *dev)402{403 struct bnx2 *bp = netdev_priv(dev);404 struct bnx2_napi *bnapi = &bp->bnx2_napi[0];405 struct cnic_eth_dev *cp = &bp->cnic_eth_dev;406 407 mutex_lock(&bp->cnic_lock);408 cp->drv_state = 0;409 bnapi->cnic_present = 0;410 RCU_INIT_POINTER(bp->cnic_ops, NULL);411 mutex_unlock(&bp->cnic_lock);412 synchronize_rcu();413 return 0;414}415 416static struct cnic_eth_dev *bnx2_cnic_probe(struct net_device *dev)417{418 struct bnx2 *bp = netdev_priv(dev);419 struct cnic_eth_dev *cp = &bp->cnic_eth_dev;420 421 if (!cp->max_iscsi_conn)422 return NULL;423 424 cp->drv_owner = THIS_MODULE;425 cp->chip_id = bp->chip_id;426 cp->pdev = bp->pdev;427 cp->io_base = bp->regview;428 cp->drv_ctl = bnx2_drv_ctl;429 cp->drv_register_cnic = bnx2_register_cnic;430 cp->drv_unregister_cnic = bnx2_unregister_cnic;431 432 return cp;433}434 435static void436bnx2_cnic_stop(struct bnx2 *bp)437{438 struct cnic_ops *c_ops;439 struct cnic_ctl_info info;440 441 mutex_lock(&bp->cnic_lock);442 c_ops = rcu_dereference_protected(bp->cnic_ops,443 lockdep_is_held(&bp->cnic_lock));444 if (c_ops) {445 info.cmd = CNIC_CTL_STOP_CMD;446 c_ops->cnic_ctl(bp->cnic_data, &info);447 }448 mutex_unlock(&bp->cnic_lock);449}450 451static void452bnx2_cnic_start(struct bnx2 *bp)453{454 struct cnic_ops *c_ops;455 struct cnic_ctl_info info;456 457 mutex_lock(&bp->cnic_lock);458 c_ops = rcu_dereference_protected(bp->cnic_ops,459 lockdep_is_held(&bp->cnic_lock));460 if (c_ops) {461 if (!(bp->flags & BNX2_FLAG_USING_MSIX)) {462 struct bnx2_napi *bnapi = &bp->bnx2_napi[0];463 464 bnapi->cnic_tag = bnapi->last_status_idx;465 }466 info.cmd = CNIC_CTL_START_CMD;467 c_ops->cnic_ctl(bp->cnic_data, &info);468 }469 mutex_unlock(&bp->cnic_lock);470}471 472#else473 474static void475bnx2_cnic_stop(struct bnx2 *bp)476{477}478 479static void480bnx2_cnic_start(struct bnx2 *bp)481{482}483 484#endif485 486static int487bnx2_read_phy(struct bnx2 *bp, u32 reg, u32 *val)488{489 u32 val1;490 int i, ret;491 492 if (bp->phy_flags & BNX2_PHY_FLAG_INT_MODE_AUTO_POLLING) {493 val1 = BNX2_RD(bp, BNX2_EMAC_MDIO_MODE);494 val1 &= ~BNX2_EMAC_MDIO_MODE_AUTO_POLL;495 496 BNX2_WR(bp, BNX2_EMAC_MDIO_MODE, val1);497 BNX2_RD(bp, BNX2_EMAC_MDIO_MODE);498 499 udelay(40);500 }501 502 val1 = (bp->phy_addr << 21) | (reg << 16) |503 BNX2_EMAC_MDIO_COMM_COMMAND_READ | BNX2_EMAC_MDIO_COMM_DISEXT |504 BNX2_EMAC_MDIO_COMM_START_BUSY;505 BNX2_WR(bp, BNX2_EMAC_MDIO_COMM, val1);506 507 for (i = 0; i < 50; i++) {508 udelay(10);509 510 val1 = BNX2_RD(bp, BNX2_EMAC_MDIO_COMM);511 if (!(val1 & BNX2_EMAC_MDIO_COMM_START_BUSY)) {512 udelay(5);513 514 val1 = BNX2_RD(bp, BNX2_EMAC_MDIO_COMM);515 val1 &= BNX2_EMAC_MDIO_COMM_DATA;516 517 break;518 }519 }520 521 if (val1 & BNX2_EMAC_MDIO_COMM_START_BUSY) {522 *val = 0x0;523 ret = -EBUSY;524 }525 else {526 *val = val1;527 ret = 0;528 }529 530 if (bp->phy_flags & BNX2_PHY_FLAG_INT_MODE_AUTO_POLLING) {531 val1 = BNX2_RD(bp, BNX2_EMAC_MDIO_MODE);532 val1 |= BNX2_EMAC_MDIO_MODE_AUTO_POLL;533 534 BNX2_WR(bp, BNX2_EMAC_MDIO_MODE, val1);535 BNX2_RD(bp, BNX2_EMAC_MDIO_MODE);536 537 udelay(40);538 }539 540 return ret;541}542 543static int544bnx2_write_phy(struct bnx2 *bp, u32 reg, u32 val)545{546 u32 val1;547 int i, ret;548 549 if (bp->phy_flags & BNX2_PHY_FLAG_INT_MODE_AUTO_POLLING) {550 val1 = BNX2_RD(bp, BNX2_EMAC_MDIO_MODE);551 val1 &= ~BNX2_EMAC_MDIO_MODE_AUTO_POLL;552 553 BNX2_WR(bp, BNX2_EMAC_MDIO_MODE, val1);554 BNX2_RD(bp, BNX2_EMAC_MDIO_MODE);555 556 udelay(40);557 }558 559 val1 = (bp->phy_addr << 21) | (reg << 16) | val |560 BNX2_EMAC_MDIO_COMM_COMMAND_WRITE |561 BNX2_EMAC_MDIO_COMM_START_BUSY | BNX2_EMAC_MDIO_COMM_DISEXT;562 BNX2_WR(bp, BNX2_EMAC_MDIO_COMM, val1);563 564 for (i = 0; i < 50; i++) {565 udelay(10);566 567 val1 = BNX2_RD(bp, BNX2_EMAC_MDIO_COMM);568 if (!(val1 & BNX2_EMAC_MDIO_COMM_START_BUSY)) {569 udelay(5);570 break;571 }572 }573 574 if (val1 & BNX2_EMAC_MDIO_COMM_START_BUSY)575 ret = -EBUSY;576 else577 ret = 0;578 579 if (bp->phy_flags & BNX2_PHY_FLAG_INT_MODE_AUTO_POLLING) {580 val1 = BNX2_RD(bp, BNX2_EMAC_MDIO_MODE);581 val1 |= BNX2_EMAC_MDIO_MODE_AUTO_POLL;582 583 BNX2_WR(bp, BNX2_EMAC_MDIO_MODE, val1);584 BNX2_RD(bp, BNX2_EMAC_MDIO_MODE);585 586 udelay(40);587 }588 589 return ret;590}591 592static void593bnx2_disable_int(struct bnx2 *bp)594{595 int i;596 struct bnx2_napi *bnapi;597 598 for (i = 0; i < bp->irq_nvecs; i++) {599 bnapi = &bp->bnx2_napi[i];600 BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD, bnapi->int_num |601 BNX2_PCICFG_INT_ACK_CMD_MASK_INT);602 }603 BNX2_RD(bp, BNX2_PCICFG_INT_ACK_CMD);604}605 606static void607bnx2_enable_int(struct bnx2 *bp)608{609 int i;610 struct bnx2_napi *bnapi;611 612 for (i = 0; i < bp->irq_nvecs; i++) {613 bnapi = &bp->bnx2_napi[i];614 615 BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD, bnapi->int_num |616 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID |617 BNX2_PCICFG_INT_ACK_CMD_MASK_INT |618 bnapi->last_status_idx);619 620 BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD, bnapi->int_num |621 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID |622 bnapi->last_status_idx);623 }624 BNX2_WR(bp, BNX2_HC_COMMAND, bp->hc_cmd | BNX2_HC_COMMAND_COAL_NOW);625}626 627static void628bnx2_disable_int_sync(struct bnx2 *bp)629{630 int i;631 632 atomic_inc(&bp->intr_sem);633 if (!netif_running(bp->dev))634 return;635 636 bnx2_disable_int(bp);637 for (i = 0; i < bp->irq_nvecs; i++)638 synchronize_irq(bp->irq_tbl[i].vector);639}640 641static void642bnx2_napi_disable(struct bnx2 *bp)643{644 int i;645 646 for (i = 0; i < bp->irq_nvecs; i++)647 napi_disable(&bp->bnx2_napi[i].napi);648}649 650static void651bnx2_napi_enable(struct bnx2 *bp)652{653 int i;654 655 for (i = 0; i < bp->irq_nvecs; i++)656 napi_enable(&bp->bnx2_napi[i].napi);657}658 659static void660bnx2_netif_stop(struct bnx2 *bp, bool stop_cnic)661{662 if (stop_cnic)663 bnx2_cnic_stop(bp);664 if (netif_running(bp->dev)) {665 bnx2_napi_disable(bp);666 netif_tx_disable(bp->dev);667 }668 bnx2_disable_int_sync(bp);669 netif_carrier_off(bp->dev); /* prevent tx timeout */670}671 672static void673bnx2_netif_start(struct bnx2 *bp, bool start_cnic)674{675 if (atomic_dec_and_test(&bp->intr_sem)) {676 if (netif_running(bp->dev)) {677 netif_tx_wake_all_queues(bp->dev);678 spin_lock_bh(&bp->phy_lock);679 if (bp->link_up)680 netif_carrier_on(bp->dev);681 spin_unlock_bh(&bp->phy_lock);682 bnx2_napi_enable(bp);683 bnx2_enable_int(bp);684 if (start_cnic)685 bnx2_cnic_start(bp);686 }687 }688}689 690static void691bnx2_free_tx_mem(struct bnx2 *bp)692{693 int i;694 695 for (i = 0; i < bp->num_tx_rings; i++) {696 struct bnx2_napi *bnapi = &bp->bnx2_napi[i];697 struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;698 699 if (txr->tx_desc_ring) {700 dma_free_coherent(&bp->pdev->dev, TXBD_RING_SIZE,701 txr->tx_desc_ring,702 txr->tx_desc_mapping);703 txr->tx_desc_ring = NULL;704 }705 kfree(txr->tx_buf_ring);706 txr->tx_buf_ring = NULL;707 }708}709 710static void711bnx2_free_rx_mem(struct bnx2 *bp)712{713 int i;714 715 for (i = 0; i < bp->num_rx_rings; i++) {716 struct bnx2_napi *bnapi = &bp->bnx2_napi[i];717 struct bnx2_rx_ring_info *rxr = &bnapi->rx_ring;718 int j;719 720 for (j = 0; j < bp->rx_max_ring; j++) {721 if (rxr->rx_desc_ring[j])722 dma_free_coherent(&bp->pdev->dev, RXBD_RING_SIZE,723 rxr->rx_desc_ring[j],724 rxr->rx_desc_mapping[j]);725 rxr->rx_desc_ring[j] = NULL;726 }727 vfree(rxr->rx_buf_ring);728 rxr->rx_buf_ring = NULL;729 730 for (j = 0; j < bp->rx_max_pg_ring; j++) {731 if (rxr->rx_pg_desc_ring[j])732 dma_free_coherent(&bp->pdev->dev, RXBD_RING_SIZE,733 rxr->rx_pg_desc_ring[j],734 rxr->rx_pg_desc_mapping[j]);735 rxr->rx_pg_desc_ring[j] = NULL;736 }737 vfree(rxr->rx_pg_ring);738 rxr->rx_pg_ring = NULL;739 }740}741 742static int743bnx2_alloc_tx_mem(struct bnx2 *bp)744{745 int i;746 747 for (i = 0; i < bp->num_tx_rings; i++) {748 struct bnx2_napi *bnapi = &bp->bnx2_napi[i];749 struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;750 751 txr->tx_buf_ring = kzalloc(SW_TXBD_RING_SIZE, GFP_KERNEL);752 if (!txr->tx_buf_ring)753 return -ENOMEM;754 755 txr->tx_desc_ring =756 dma_alloc_coherent(&bp->pdev->dev, TXBD_RING_SIZE,757 &txr->tx_desc_mapping, GFP_KERNEL);758 if (!txr->tx_desc_ring)759 return -ENOMEM;760 }761 return 0;762}763 764static int765bnx2_alloc_rx_mem(struct bnx2 *bp)766{767 int i;768 769 for (i = 0; i < bp->num_rx_rings; i++) {770 struct bnx2_napi *bnapi = &bp->bnx2_napi[i];771 struct bnx2_rx_ring_info *rxr = &bnapi->rx_ring;772 int j;773 774 rxr->rx_buf_ring =775 vzalloc(array_size(SW_RXBD_RING_SIZE, bp->rx_max_ring));776 if (!rxr->rx_buf_ring)777 return -ENOMEM;778 779 for (j = 0; j < bp->rx_max_ring; j++) {780 rxr->rx_desc_ring[j] =781 dma_alloc_coherent(&bp->pdev->dev,782 RXBD_RING_SIZE,783 &rxr->rx_desc_mapping[j],784 GFP_KERNEL);785 if (!rxr->rx_desc_ring[j])786 return -ENOMEM;787 788 }789 790 if (bp->rx_pg_ring_size) {791 rxr->rx_pg_ring =792 vzalloc(array_size(SW_RXPG_RING_SIZE,793 bp->rx_max_pg_ring));794 if (!rxr->rx_pg_ring)795 return -ENOMEM;796 797 }798 799 for (j = 0; j < bp->rx_max_pg_ring; j++) {800 rxr->rx_pg_desc_ring[j] =801 dma_alloc_coherent(&bp->pdev->dev,802 RXBD_RING_SIZE,803 &rxr->rx_pg_desc_mapping[j],804 GFP_KERNEL);805 if (!rxr->rx_pg_desc_ring[j])806 return -ENOMEM;807 808 }809 }810 return 0;811}812 813static void814bnx2_free_stats_blk(struct net_device *dev)815{816 struct bnx2 *bp = netdev_priv(dev);817 818 if (bp->status_blk) {819 dma_free_coherent(&bp->pdev->dev, bp->status_stats_size,820 bp->status_blk,821 bp->status_blk_mapping);822 bp->status_blk = NULL;823 bp->stats_blk = NULL;824 }825}826 827static int828bnx2_alloc_stats_blk(struct net_device *dev)829{830 int status_blk_size;831 void *status_blk;832 struct bnx2 *bp = netdev_priv(dev);833 834 /* Combine status and statistics blocks into one allocation. */835 status_blk_size = L1_CACHE_ALIGN(sizeof(struct status_block));836 if (bp->flags & BNX2_FLAG_MSIX_CAP)837 status_blk_size = L1_CACHE_ALIGN(BNX2_MAX_MSIX_HW_VEC *838 BNX2_SBLK_MSIX_ALIGN_SIZE);839 bp->status_stats_size = status_blk_size +840 sizeof(struct statistics_block);841 status_blk = dma_alloc_coherent(&bp->pdev->dev, bp->status_stats_size,842 &bp->status_blk_mapping, GFP_KERNEL);843 if (!status_blk)844 return -ENOMEM;845 846 bp->status_blk = status_blk;847 bp->stats_blk = status_blk + status_blk_size;848 bp->stats_blk_mapping = bp->status_blk_mapping + status_blk_size;849 850 return 0;851}852 853static void854bnx2_free_mem(struct bnx2 *bp)855{856 int i;857 struct bnx2_napi *bnapi = &bp->bnx2_napi[0];858 859 bnx2_free_tx_mem(bp);860 bnx2_free_rx_mem(bp);861 862 for (i = 0; i < bp->ctx_pages; i++) {863 if (bp->ctx_blk[i]) {864 dma_free_coherent(&bp->pdev->dev, BNX2_PAGE_SIZE,865 bp->ctx_blk[i],866 bp->ctx_blk_mapping[i]);867 bp->ctx_blk[i] = NULL;868 }869 }870 871 if (bnapi->status_blk.msi)872 bnapi->status_blk.msi = NULL;873}874 875static int876bnx2_alloc_mem(struct bnx2 *bp)877{878 int i, err;879 struct bnx2_napi *bnapi;880 881 bnapi = &bp->bnx2_napi[0];882 bnapi->status_blk.msi = bp->status_blk;883 bnapi->hw_tx_cons_ptr =884 &bnapi->status_blk.msi->status_tx_quick_consumer_index0;885 bnapi->hw_rx_cons_ptr =886 &bnapi->status_blk.msi->status_rx_quick_consumer_index0;887 if (bp->flags & BNX2_FLAG_MSIX_CAP) {888 for (i = 1; i < bp->irq_nvecs; i++) {889 struct status_block_msix *sblk;890 891 bnapi = &bp->bnx2_napi[i];892 893 sblk = (bp->status_blk + BNX2_SBLK_MSIX_ALIGN_SIZE * i);894 bnapi->status_blk.msix = sblk;895 bnapi->hw_tx_cons_ptr =896 &sblk->status_tx_quick_consumer_index;897 bnapi->hw_rx_cons_ptr =898 &sblk->status_rx_quick_consumer_index;899 bnapi->int_num = i << 24;900 }901 }902 903 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {904 bp->ctx_pages = 0x2000 / BNX2_PAGE_SIZE;905 if (bp->ctx_pages == 0)906 bp->ctx_pages = 1;907 for (i = 0; i < bp->ctx_pages; i++) {908 bp->ctx_blk[i] = dma_alloc_coherent(&bp->pdev->dev,909 BNX2_PAGE_SIZE,910 &bp->ctx_blk_mapping[i],911 GFP_KERNEL);912 if (!bp->ctx_blk[i])913 goto alloc_mem_err;914 }915 }916 917 err = bnx2_alloc_rx_mem(bp);918 if (err)919 goto alloc_mem_err;920 921 err = bnx2_alloc_tx_mem(bp);922 if (err)923 goto alloc_mem_err;924 925 return 0;926 927alloc_mem_err:928 bnx2_free_mem(bp);929 return -ENOMEM;930}931 932static void933bnx2_report_fw_link(struct bnx2 *bp)934{935 u32 fw_link_status = 0;936 937 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)938 return;939 940 if (bp->link_up) {941 u32 bmsr;942 943 switch (bp->line_speed) {944 case SPEED_10:945 if (bp->duplex == DUPLEX_HALF)946 fw_link_status = BNX2_LINK_STATUS_10HALF;947 else948 fw_link_status = BNX2_LINK_STATUS_10FULL;949 break;950 case SPEED_100:951 if (bp->duplex == DUPLEX_HALF)952 fw_link_status = BNX2_LINK_STATUS_100HALF;953 else954 fw_link_status = BNX2_LINK_STATUS_100FULL;955 break;956 case SPEED_1000:957 if (bp->duplex == DUPLEX_HALF)958 fw_link_status = BNX2_LINK_STATUS_1000HALF;959 else960 fw_link_status = BNX2_LINK_STATUS_1000FULL;961 break;962 case SPEED_2500:963 if (bp->duplex == DUPLEX_HALF)964 fw_link_status = BNX2_LINK_STATUS_2500HALF;965 else966 fw_link_status = BNX2_LINK_STATUS_2500FULL;967 break;968 }969 970 fw_link_status |= BNX2_LINK_STATUS_LINK_UP;971 972 if (bp->autoneg) {973 fw_link_status |= BNX2_LINK_STATUS_AN_ENABLED;974 975 bnx2_read_phy(bp, bp->mii_bmsr, &bmsr);976 bnx2_read_phy(bp, bp->mii_bmsr, &bmsr);977 978 if (!(bmsr & BMSR_ANEGCOMPLETE) ||979 bp->phy_flags & BNX2_PHY_FLAG_PARALLEL_DETECT)980 fw_link_status |= BNX2_LINK_STATUS_PARALLEL_DET;981 else982 fw_link_status |= BNX2_LINK_STATUS_AN_COMPLETE;983 }984 }985 else986 fw_link_status = BNX2_LINK_STATUS_LINK_DOWN;987 988 bnx2_shmem_wr(bp, BNX2_LINK_STATUS, fw_link_status);989}990 991static char *992bnx2_xceiver_str(struct bnx2 *bp)993{994 return (bp->phy_port == PORT_FIBRE) ? "SerDes" :995 ((bp->phy_flags & BNX2_PHY_FLAG_SERDES) ? "Remote Copper" :996 "Copper");997}998 999static void1000bnx2_report_link(struct bnx2 *bp)1001{1002 if (bp->link_up) {1003 netif_carrier_on(bp->dev);1004 netdev_info(bp->dev, "NIC %s Link is Up, %d Mbps %s duplex",1005 bnx2_xceiver_str(bp),1006 bp->line_speed,1007 bp->duplex == DUPLEX_FULL ? "full" : "half");1008 1009 if (bp->flow_ctrl) {1010 if (bp->flow_ctrl & FLOW_CTRL_RX) {1011 pr_cont(", receive ");1012 if (bp->flow_ctrl & FLOW_CTRL_TX)1013 pr_cont("& transmit ");1014 }1015 else {1016 pr_cont(", transmit ");1017 }1018 pr_cont("flow control ON");1019 }1020 pr_cont("\n");1021 } else {1022 netif_carrier_off(bp->dev);1023 netdev_err(bp->dev, "NIC %s Link is Down\n",1024 bnx2_xceiver_str(bp));1025 }1026 1027 bnx2_report_fw_link(bp);1028}1029 1030static void1031bnx2_resolve_flow_ctrl(struct bnx2 *bp)1032{1033 u32 local_adv, remote_adv;1034 1035 bp->flow_ctrl = 0;1036 if ((bp->autoneg & (AUTONEG_SPEED | AUTONEG_FLOW_CTRL)) !=1037 (AUTONEG_SPEED | AUTONEG_FLOW_CTRL)) {1038 1039 if (bp->duplex == DUPLEX_FULL) {1040 bp->flow_ctrl = bp->req_flow_ctrl;1041 }1042 return;1043 }1044 1045 if (bp->duplex != DUPLEX_FULL) {1046 return;1047 }1048 1049 if ((bp->phy_flags & BNX2_PHY_FLAG_SERDES) &&1050 (BNX2_CHIP(bp) == BNX2_CHIP_5708)) {1051 u32 val;1052 1053 bnx2_read_phy(bp, BCM5708S_1000X_STAT1, &val);1054 if (val & BCM5708S_1000X_STAT1_TX_PAUSE)1055 bp->flow_ctrl |= FLOW_CTRL_TX;1056 if (val & BCM5708S_1000X_STAT1_RX_PAUSE)1057 bp->flow_ctrl |= FLOW_CTRL_RX;1058 return;1059 }1060 1061 bnx2_read_phy(bp, bp->mii_adv, &local_adv);1062 bnx2_read_phy(bp, bp->mii_lpa, &remote_adv);1063 1064 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {1065 u32 new_local_adv = 0;1066 u32 new_remote_adv = 0;1067 1068 if (local_adv & ADVERTISE_1000XPAUSE)1069 new_local_adv |= ADVERTISE_PAUSE_CAP;1070 if (local_adv & ADVERTISE_1000XPSE_ASYM)1071 new_local_adv |= ADVERTISE_PAUSE_ASYM;1072 if (remote_adv & ADVERTISE_1000XPAUSE)1073 new_remote_adv |= ADVERTISE_PAUSE_CAP;1074 if (remote_adv & ADVERTISE_1000XPSE_ASYM)1075 new_remote_adv |= ADVERTISE_PAUSE_ASYM;1076 1077 local_adv = new_local_adv;1078 remote_adv = new_remote_adv;1079 }1080 1081 /* See Table 28B-3 of 802.3ab-1999 spec. */1082 if (local_adv & ADVERTISE_PAUSE_CAP) {1083 if(local_adv & ADVERTISE_PAUSE_ASYM) {1084 if (remote_adv & ADVERTISE_PAUSE_CAP) {1085 bp->flow_ctrl = FLOW_CTRL_TX | FLOW_CTRL_RX;1086 }1087 else if (remote_adv & ADVERTISE_PAUSE_ASYM) {1088 bp->flow_ctrl = FLOW_CTRL_RX;1089 }1090 }1091 else {1092 if (remote_adv & ADVERTISE_PAUSE_CAP) {1093 bp->flow_ctrl = FLOW_CTRL_TX | FLOW_CTRL_RX;1094 }1095 }1096 }1097 else if (local_adv & ADVERTISE_PAUSE_ASYM) {1098 if ((remote_adv & ADVERTISE_PAUSE_CAP) &&1099 (remote_adv & ADVERTISE_PAUSE_ASYM)) {1100 1101 bp->flow_ctrl = FLOW_CTRL_TX;1102 }1103 }1104}1105 1106static int1107bnx2_5709s_linkup(struct bnx2 *bp)1108{1109 u32 val, speed;1110 1111 bp->link_up = 1;1112 1113 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_GP_STATUS);1114 bnx2_read_phy(bp, MII_BNX2_GP_TOP_AN_STATUS1, &val);1115 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_COMBO_IEEEB0);1116 1117 if ((bp->autoneg & AUTONEG_SPEED) == 0) {1118 bp->line_speed = bp->req_line_speed;1119 bp->duplex = bp->req_duplex;1120 return 0;1121 }1122 speed = val & MII_BNX2_GP_TOP_AN_SPEED_MSK;1123 switch (speed) {1124 case MII_BNX2_GP_TOP_AN_SPEED_10:1125 bp->line_speed = SPEED_10;1126 break;1127 case MII_BNX2_GP_TOP_AN_SPEED_100:1128 bp->line_speed = SPEED_100;1129 break;1130 case MII_BNX2_GP_TOP_AN_SPEED_1G:1131 case MII_BNX2_GP_TOP_AN_SPEED_1GKV:1132 bp->line_speed = SPEED_1000;1133 break;1134 case MII_BNX2_GP_TOP_AN_SPEED_2_5G:1135 bp->line_speed = SPEED_2500;1136 break;1137 }1138 if (val & MII_BNX2_GP_TOP_AN_FD)1139 bp->duplex = DUPLEX_FULL;1140 else1141 bp->duplex = DUPLEX_HALF;1142 return 0;1143}1144 1145static int1146bnx2_5708s_linkup(struct bnx2 *bp)1147{1148 u32 val;1149 1150 bp->link_up = 1;1151 bnx2_read_phy(bp, BCM5708S_1000X_STAT1, &val);1152 switch (val & BCM5708S_1000X_STAT1_SPEED_MASK) {1153 case BCM5708S_1000X_STAT1_SPEED_10:1154 bp->line_speed = SPEED_10;1155 break;1156 case BCM5708S_1000X_STAT1_SPEED_100:1157 bp->line_speed = SPEED_100;1158 break;1159 case BCM5708S_1000X_STAT1_SPEED_1G:1160 bp->line_speed = SPEED_1000;1161 break;1162 case BCM5708S_1000X_STAT1_SPEED_2G5:1163 bp->line_speed = SPEED_2500;1164 break;1165 }1166 if (val & BCM5708S_1000X_STAT1_FD)1167 bp->duplex = DUPLEX_FULL;1168 else1169 bp->duplex = DUPLEX_HALF;1170 1171 return 0;1172}1173 1174static int1175bnx2_5706s_linkup(struct bnx2 *bp)1176{1177 u32 bmcr, local_adv, remote_adv, common;1178 1179 bp->link_up = 1;1180 bp->line_speed = SPEED_1000;1181 1182 bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);1183 if (bmcr & BMCR_FULLDPLX) {1184 bp->duplex = DUPLEX_FULL;1185 }1186 else {1187 bp->duplex = DUPLEX_HALF;1188 }1189 1190 if (!(bmcr & BMCR_ANENABLE)) {1191 return 0;1192 }1193 1194 bnx2_read_phy(bp, bp->mii_adv, &local_adv);1195 bnx2_read_phy(bp, bp->mii_lpa, &remote_adv);1196 1197 common = local_adv & remote_adv;1198 if (common & (ADVERTISE_1000XHALF | ADVERTISE_1000XFULL)) {1199 1200 if (common & ADVERTISE_1000XFULL) {1201 bp->duplex = DUPLEX_FULL;1202 }1203 else {1204 bp->duplex = DUPLEX_HALF;1205 }1206 }1207 1208 return 0;1209}1210 1211static int1212bnx2_copper_linkup(struct bnx2 *bp)1213{1214 u32 bmcr;1215 1216 bp->phy_flags &= ~BNX2_PHY_FLAG_MDIX;1217 1218 bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);1219 if (bmcr & BMCR_ANENABLE) {1220 u32 local_adv, remote_adv, common;1221 1222 bnx2_read_phy(bp, MII_CTRL1000, &local_adv);1223 bnx2_read_phy(bp, MII_STAT1000, &remote_adv);1224 1225 common = local_adv & (remote_adv >> 2);1226 if (common & ADVERTISE_1000FULL) {1227 bp->line_speed = SPEED_1000;1228 bp->duplex = DUPLEX_FULL;1229 }1230 else if (common & ADVERTISE_1000HALF) {1231 bp->line_speed = SPEED_1000;1232 bp->duplex = DUPLEX_HALF;1233 }1234 else {1235 bnx2_read_phy(bp, bp->mii_adv, &local_adv);1236 bnx2_read_phy(bp, bp->mii_lpa, &remote_adv);1237 1238 common = local_adv & remote_adv;1239 if (common & ADVERTISE_100FULL) {1240 bp->line_speed = SPEED_100;1241 bp->duplex = DUPLEX_FULL;1242 }1243 else if (common & ADVERTISE_100HALF) {1244 bp->line_speed = SPEED_100;1245 bp->duplex = DUPLEX_HALF;1246 }1247 else if (common & ADVERTISE_10FULL) {1248 bp->line_speed = SPEED_10;1249 bp->duplex = DUPLEX_FULL;1250 }1251 else if (common & ADVERTISE_10HALF) {1252 bp->line_speed = SPEED_10;1253 bp->duplex = DUPLEX_HALF;1254 }1255 else {1256 bp->line_speed = 0;1257 bp->link_up = 0;1258 }1259 }1260 }1261 else {1262 if (bmcr & BMCR_SPEED100) {1263 bp->line_speed = SPEED_100;1264 }1265 else {1266 bp->line_speed = SPEED_10;1267 }1268 if (bmcr & BMCR_FULLDPLX) {1269 bp->duplex = DUPLEX_FULL;1270 }1271 else {1272 bp->duplex = DUPLEX_HALF;1273 }1274 }1275 1276 if (bp->link_up) {1277 u32 ext_status;1278 1279 bnx2_read_phy(bp, MII_BNX2_EXT_STATUS, &ext_status);1280 if (ext_status & EXT_STATUS_MDIX)1281 bp->phy_flags |= BNX2_PHY_FLAG_MDIX;1282 }1283 1284 return 0;1285}1286 1287static void1288bnx2_init_rx_context(struct bnx2 *bp, u32 cid)1289{1290 u32 val, rx_cid_addr = GET_CID_ADDR(cid);1291 1292 val = BNX2_L2CTX_CTX_TYPE_CTX_BD_CHN_TYPE_VALUE;1293 val |= BNX2_L2CTX_CTX_TYPE_SIZE_L2;1294 val |= 0x02 << 8;1295 1296 if (bp->flow_ctrl & FLOW_CTRL_TX)1297 val |= BNX2_L2CTX_FLOW_CTRL_ENABLE;1298 1299 bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_CTX_TYPE, val);1300}1301 1302static void1303bnx2_init_all_rx_contexts(struct bnx2 *bp)1304{1305 int i;1306 u32 cid;1307 1308 for (i = 0, cid = RX_CID; i < bp->num_rx_rings; i++, cid++) {1309 if (i == 1)1310 cid = RX_RSS_CID;1311 bnx2_init_rx_context(bp, cid);1312 }1313}1314 1315static void1316bnx2_set_mac_link(struct bnx2 *bp)1317{1318 u32 val;1319 1320 BNX2_WR(bp, BNX2_EMAC_TX_LENGTHS, 0x2620);1321 if (bp->link_up && (bp->line_speed == SPEED_1000) &&1322 (bp->duplex == DUPLEX_HALF)) {1323 BNX2_WR(bp, BNX2_EMAC_TX_LENGTHS, 0x26ff);1324 }1325 1326 /* Configure the EMAC mode register. */1327 val = BNX2_RD(bp, BNX2_EMAC_MODE);1328 1329 val &= ~(BNX2_EMAC_MODE_PORT | BNX2_EMAC_MODE_HALF_DUPLEX |1330 BNX2_EMAC_MODE_MAC_LOOP | BNX2_EMAC_MODE_FORCE_LINK |1331 BNX2_EMAC_MODE_25G_MODE);1332 1333 if (bp->link_up) {1334 switch (bp->line_speed) {1335 case SPEED_10:1336 if (BNX2_CHIP(bp) != BNX2_CHIP_5706) {1337 val |= BNX2_EMAC_MODE_PORT_MII_10M;1338 break;1339 }1340 fallthrough;1341 case SPEED_100:1342 val |= BNX2_EMAC_MODE_PORT_MII;1343 break;1344 case SPEED_2500:1345 val |= BNX2_EMAC_MODE_25G_MODE;1346 fallthrough;1347 case SPEED_1000:1348 val |= BNX2_EMAC_MODE_PORT_GMII;1349 break;1350 }1351 }1352 else {1353 val |= BNX2_EMAC_MODE_PORT_GMII;1354 }1355 1356 /* Set the MAC to operate in the appropriate duplex mode. */1357 if (bp->duplex == DUPLEX_HALF)1358 val |= BNX2_EMAC_MODE_HALF_DUPLEX;1359 BNX2_WR(bp, BNX2_EMAC_MODE, val);1360 1361 /* Enable/disable rx PAUSE. */1362 bp->rx_mode &= ~BNX2_EMAC_RX_MODE_FLOW_EN;1363 1364 if (bp->flow_ctrl & FLOW_CTRL_RX)1365 bp->rx_mode |= BNX2_EMAC_RX_MODE_FLOW_EN;1366 BNX2_WR(bp, BNX2_EMAC_RX_MODE, bp->rx_mode);1367 1368 /* Enable/disable tx PAUSE. */1369 val = BNX2_RD(bp, BNX2_EMAC_TX_MODE);1370 val &= ~BNX2_EMAC_TX_MODE_FLOW_EN;1371 1372 if (bp->flow_ctrl & FLOW_CTRL_TX)1373 val |= BNX2_EMAC_TX_MODE_FLOW_EN;1374 BNX2_WR(bp, BNX2_EMAC_TX_MODE, val);1375 1376 /* Acknowledge the interrupt. */1377 BNX2_WR(bp, BNX2_EMAC_STATUS, BNX2_EMAC_STATUS_LINK_CHANGE);1378 1379 bnx2_init_all_rx_contexts(bp);1380}1381 1382static void1383bnx2_enable_bmsr1(struct bnx2 *bp)1384{1385 if ((bp->phy_flags & BNX2_PHY_FLAG_SERDES) &&1386 (BNX2_CHIP(bp) == BNX2_CHIP_5709))1387 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,1388 MII_BNX2_BLK_ADDR_GP_STATUS);1389}1390 1391static void1392bnx2_disable_bmsr1(struct bnx2 *bp)1393{1394 if ((bp->phy_flags & BNX2_PHY_FLAG_SERDES) &&1395 (BNX2_CHIP(bp) == BNX2_CHIP_5709))1396 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,1397 MII_BNX2_BLK_ADDR_COMBO_IEEEB0);1398}1399 1400static int1401bnx2_test_and_enable_2g5(struct bnx2 *bp)1402{1403 u32 up1;1404 int ret = 1;1405 1406 if (!(bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE))1407 return 0;1408 1409 if (bp->autoneg & AUTONEG_SPEED)1410 bp->advertising |= ADVERTISED_2500baseX_Full;1411 1412 if (BNX2_CHIP(bp) == BNX2_CHIP_5709)1413 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_OVER1G);1414 1415 bnx2_read_phy(bp, bp->mii_up1, &up1);1416 if (!(up1 & BCM5708S_UP1_2G5)) {1417 up1 |= BCM5708S_UP1_2G5;1418 bnx2_write_phy(bp, bp->mii_up1, up1);1419 ret = 0;1420 }1421 1422 if (BNX2_CHIP(bp) == BNX2_CHIP_5709)1423 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,1424 MII_BNX2_BLK_ADDR_COMBO_IEEEB0);1425 1426 return ret;1427}1428 1429static int1430bnx2_test_and_disable_2g5(struct bnx2 *bp)1431{1432 u32 up1;1433 int ret = 0;1434 1435 if (!(bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE))1436 return 0;1437 1438 if (BNX2_CHIP(bp) == BNX2_CHIP_5709)1439 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_OVER1G);1440 1441 bnx2_read_phy(bp, bp->mii_up1, &up1);1442 if (up1 & BCM5708S_UP1_2G5) {1443 up1 &= ~BCM5708S_UP1_2G5;1444 bnx2_write_phy(bp, bp->mii_up1, up1);1445 ret = 1;1446 }1447 1448 if (BNX2_CHIP(bp) == BNX2_CHIP_5709)1449 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,1450 MII_BNX2_BLK_ADDR_COMBO_IEEEB0);1451 1452 return ret;1453}1454 1455static void1456bnx2_enable_forced_2g5(struct bnx2 *bp)1457{1458 u32 bmcr;1459 int err;1460 1461 if (!(bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE))1462 return;1463 1464 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {1465 u32 val;1466 1467 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,1468 MII_BNX2_BLK_ADDR_SERDES_DIG);1469 if (!bnx2_read_phy(bp, MII_BNX2_SERDES_DIG_MISC1, &val)) {1470 val &= ~MII_BNX2_SD_MISC1_FORCE_MSK;1471 val |= MII_BNX2_SD_MISC1_FORCE |1472 MII_BNX2_SD_MISC1_FORCE_2_5G;1473 bnx2_write_phy(bp, MII_BNX2_SERDES_DIG_MISC1, val);1474 }1475 1476 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,1477 MII_BNX2_BLK_ADDR_COMBO_IEEEB0);1478 err = bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);1479 1480 } else if (BNX2_CHIP(bp) == BNX2_CHIP_5708) {1481 err = bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);1482 if (!err)1483 bmcr |= BCM5708S_BMCR_FORCE_2500;1484 } else {1485 return;1486 }1487 1488 if (err)1489 return;1490 1491 if (bp->autoneg & AUTONEG_SPEED) {1492 bmcr &= ~BMCR_ANENABLE;1493 if (bp->req_duplex == DUPLEX_FULL)1494 bmcr |= BMCR_FULLDPLX;1495 }1496 bnx2_write_phy(bp, bp->mii_bmcr, bmcr);1497}1498 1499static void1500bnx2_disable_forced_2g5(struct bnx2 *bp)1501{1502 u32 bmcr;1503 int err;1504 1505 if (!(bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE))1506 return;1507 1508 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {1509 u32 val;1510 1511 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,1512 MII_BNX2_BLK_ADDR_SERDES_DIG);1513 if (!bnx2_read_phy(bp, MII_BNX2_SERDES_DIG_MISC1, &val)) {1514 val &= ~MII_BNX2_SD_MISC1_FORCE;1515 bnx2_write_phy(bp, MII_BNX2_SERDES_DIG_MISC1, val);1516 }1517 1518 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR,1519 MII_BNX2_BLK_ADDR_COMBO_IEEEB0);1520 err = bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);1521 1522 } else if (BNX2_CHIP(bp) == BNX2_CHIP_5708) {1523 err = bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);1524 if (!err)1525 bmcr &= ~BCM5708S_BMCR_FORCE_2500;1526 } else {1527 return;1528 }1529 1530 if (err)1531 return;1532 1533 if (bp->autoneg & AUTONEG_SPEED)1534 bmcr |= BMCR_SPEED1000 | BMCR_ANENABLE | BMCR_ANRESTART;1535 bnx2_write_phy(bp, bp->mii_bmcr, bmcr);1536}1537 1538static void1539bnx2_5706s_force_link_dn(struct bnx2 *bp, int start)1540{1541 u32 val;1542 1543 bnx2_write_phy(bp, MII_BNX2_DSP_ADDRESS, MII_EXPAND_SERDES_CTL);1544 bnx2_read_phy(bp, MII_BNX2_DSP_RW_PORT, &val);1545 if (start)1546 bnx2_write_phy(bp, MII_BNX2_DSP_RW_PORT, val & 0xff0f);1547 else1548 bnx2_write_phy(bp, MII_BNX2_DSP_RW_PORT, val | 0xc0);1549}1550 1551static int1552bnx2_set_link(struct bnx2 *bp)1553{1554 u32 bmsr;1555 u8 link_up;1556 1557 if (bp->loopback == MAC_LOOPBACK || bp->loopback == PHY_LOOPBACK) {1558 bp->link_up = 1;1559 return 0;1560 }1561 1562 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)1563 return 0;1564 1565 link_up = bp->link_up;1566 1567 bnx2_enable_bmsr1(bp);1568 bnx2_read_phy(bp, bp->mii_bmsr1, &bmsr);1569 bnx2_read_phy(bp, bp->mii_bmsr1, &bmsr);1570 bnx2_disable_bmsr1(bp);1571 1572 if ((bp->phy_flags & BNX2_PHY_FLAG_SERDES) &&1573 (BNX2_CHIP(bp) == BNX2_CHIP_5706)) {1574 u32 val, an_dbg;1575 1576 if (bp->phy_flags & BNX2_PHY_FLAG_FORCED_DOWN) {1577 bnx2_5706s_force_link_dn(bp, 0);1578 bp->phy_flags &= ~BNX2_PHY_FLAG_FORCED_DOWN;1579 }1580 val = BNX2_RD(bp, BNX2_EMAC_STATUS);1581 1582 bnx2_write_phy(bp, MII_BNX2_MISC_SHADOW, MISC_SHDW_AN_DBG);1583 bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &an_dbg);1584 bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &an_dbg);1585 1586 if ((val & BNX2_EMAC_STATUS_LINK) &&1587 !(an_dbg & MISC_SHDW_AN_DBG_NOSYNC))1588 bmsr |= BMSR_LSTATUS;1589 else1590 bmsr &= ~BMSR_LSTATUS;1591 }1592 1593 if (bmsr & BMSR_LSTATUS) {1594 bp->link_up = 1;1595 1596 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {1597 if (BNX2_CHIP(bp) == BNX2_CHIP_5706)1598 bnx2_5706s_linkup(bp);1599 else if (BNX2_CHIP(bp) == BNX2_CHIP_5708)1600 bnx2_5708s_linkup(bp);1601 else if (BNX2_CHIP(bp) == BNX2_CHIP_5709)1602 bnx2_5709s_linkup(bp);1603 }1604 else {1605 bnx2_copper_linkup(bp);1606 }1607 bnx2_resolve_flow_ctrl(bp);1608 }1609 else {1610 if ((bp->phy_flags & BNX2_PHY_FLAG_SERDES) &&1611 (bp->autoneg & AUTONEG_SPEED))1612 bnx2_disable_forced_2g5(bp);1613 1614 if (bp->phy_flags & BNX2_PHY_FLAG_PARALLEL_DETECT) {1615 u32 bmcr;1616 1617 bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);1618 bmcr |= BMCR_ANENABLE;1619 bnx2_write_phy(bp, bp->mii_bmcr, bmcr);1620 1621 bp->phy_flags &= ~BNX2_PHY_FLAG_PARALLEL_DETECT;1622 }1623 bp->link_up = 0;1624 }1625 1626 if (bp->link_up != link_up) {1627 bnx2_report_link(bp);1628 }1629 1630 bnx2_set_mac_link(bp);1631 1632 return 0;1633}1634 1635static int1636bnx2_reset_phy(struct bnx2 *bp)1637{1638 int i;1639 u32 reg;1640 1641 bnx2_write_phy(bp, bp->mii_bmcr, BMCR_RESET);1642 1643#define PHY_RESET_MAX_WAIT 1001644 for (i = 0; i < PHY_RESET_MAX_WAIT; i++) {1645 udelay(10);1646 1647 bnx2_read_phy(bp, bp->mii_bmcr, ®);1648 if (!(reg & BMCR_RESET)) {1649 udelay(20);1650 break;1651 }1652 }1653 if (i == PHY_RESET_MAX_WAIT) {1654 return -EBUSY;1655 }1656 return 0;1657}1658 1659static u321660bnx2_phy_get_pause_adv(struct bnx2 *bp)1661{1662 u32 adv = 0;1663 1664 if ((bp->req_flow_ctrl & (FLOW_CTRL_RX | FLOW_CTRL_TX)) ==1665 (FLOW_CTRL_RX | FLOW_CTRL_TX)) {1666 1667 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {1668 adv = ADVERTISE_1000XPAUSE;1669 }1670 else {1671 adv = ADVERTISE_PAUSE_CAP;1672 }1673 }1674 else if (bp->req_flow_ctrl & FLOW_CTRL_TX) {1675 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {1676 adv = ADVERTISE_1000XPSE_ASYM;1677 }1678 else {1679 adv = ADVERTISE_PAUSE_ASYM;1680 }1681 }1682 else if (bp->req_flow_ctrl & FLOW_CTRL_RX) {1683 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {1684 adv = ADVERTISE_1000XPAUSE | ADVERTISE_1000XPSE_ASYM;1685 }1686 else {1687 adv = ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;1688 }1689 }1690 return adv;1691}1692 1693static int bnx2_fw_sync(struct bnx2 *, u32, int, int);1694 1695static int1696bnx2_setup_remote_phy(struct bnx2 *bp, u8 port)1697__releases(&bp->phy_lock)1698__acquires(&bp->phy_lock)1699{1700 u32 speed_arg = 0, pause_adv;1701 1702 pause_adv = bnx2_phy_get_pause_adv(bp);1703 1704 if (bp->autoneg & AUTONEG_SPEED) {1705 speed_arg |= BNX2_NETLINK_SET_LINK_ENABLE_AUTONEG;1706 if (bp->advertising & ADVERTISED_10baseT_Half)1707 speed_arg |= BNX2_NETLINK_SET_LINK_SPEED_10HALF;1708 if (bp->advertising & ADVERTISED_10baseT_Full)1709 speed_arg |= BNX2_NETLINK_SET_LINK_SPEED_10FULL;1710 if (bp->advertising & ADVERTISED_100baseT_Half)1711 speed_arg |= BNX2_NETLINK_SET_LINK_SPEED_100HALF;1712 if (bp->advertising & ADVERTISED_100baseT_Full)1713 speed_arg |= BNX2_NETLINK_SET_LINK_SPEED_100FULL;1714 if (bp->advertising & ADVERTISED_1000baseT_Full)1715 speed_arg |= BNX2_NETLINK_SET_LINK_SPEED_1GFULL;1716 if (bp->advertising & ADVERTISED_2500baseX_Full)1717 speed_arg |= BNX2_NETLINK_SET_LINK_SPEED_2G5FULL;1718 } else {1719 if (bp->req_line_speed == SPEED_2500)1720 speed_arg = BNX2_NETLINK_SET_LINK_SPEED_2G5FULL;1721 else if (bp->req_line_speed == SPEED_1000)1722 speed_arg = BNX2_NETLINK_SET_LINK_SPEED_1GFULL;1723 else if (bp->req_line_speed == SPEED_100) {1724 if (bp->req_duplex == DUPLEX_FULL)1725 speed_arg = BNX2_NETLINK_SET_LINK_SPEED_100FULL;1726 else1727 speed_arg = BNX2_NETLINK_SET_LINK_SPEED_100HALF;1728 } else if (bp->req_line_speed == SPEED_10) {1729 if (bp->req_duplex == DUPLEX_FULL)1730 speed_arg = BNX2_NETLINK_SET_LINK_SPEED_10FULL;1731 else1732 speed_arg = BNX2_NETLINK_SET_LINK_SPEED_10HALF;1733 }1734 }1735 1736 if (pause_adv & (ADVERTISE_1000XPAUSE | ADVERTISE_PAUSE_CAP))1737 speed_arg |= BNX2_NETLINK_SET_LINK_FC_SYM_PAUSE;1738 if (pause_adv & (ADVERTISE_1000XPSE_ASYM | ADVERTISE_PAUSE_ASYM))1739 speed_arg |= BNX2_NETLINK_SET_LINK_FC_ASYM_PAUSE;1740 1741 if (port == PORT_TP)1742 speed_arg |= BNX2_NETLINK_SET_LINK_PHY_APP_REMOTE |1743 BNX2_NETLINK_SET_LINK_ETH_AT_WIRESPEED;1744 1745 bnx2_shmem_wr(bp, BNX2_DRV_MB_ARG0, speed_arg);1746 1747 spin_unlock_bh(&bp->phy_lock);1748 bnx2_fw_sync(bp, BNX2_DRV_MSG_CODE_CMD_SET_LINK, 1, 0);1749 spin_lock_bh(&bp->phy_lock);1750 1751 return 0;1752}1753 1754static int1755bnx2_setup_serdes_phy(struct bnx2 *bp, u8 port)1756__releases(&bp->phy_lock)1757__acquires(&bp->phy_lock)1758{1759 u32 adv, bmcr;1760 u32 new_adv = 0;1761 1762 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)1763 return bnx2_setup_remote_phy(bp, port);1764 1765 if (!(bp->autoneg & AUTONEG_SPEED)) {1766 u32 new_bmcr;1767 int force_link_down = 0;1768 1769 if (bp->req_line_speed == SPEED_2500) {1770 if (!bnx2_test_and_enable_2g5(bp))1771 force_link_down = 1;1772 } else if (bp->req_line_speed == SPEED_1000) {1773 if (bnx2_test_and_disable_2g5(bp))1774 force_link_down = 1;1775 }1776 bnx2_read_phy(bp, bp->mii_adv, &adv);1777 adv &= ~(ADVERTISE_1000XFULL | ADVERTISE_1000XHALF);1778 1779 bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);1780 new_bmcr = bmcr & ~BMCR_ANENABLE;1781 new_bmcr |= BMCR_SPEED1000;1782 1783 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {1784 if (bp->req_line_speed == SPEED_2500)1785 bnx2_enable_forced_2g5(bp);1786 else if (bp->req_line_speed == SPEED_1000) {1787 bnx2_disable_forced_2g5(bp);1788 new_bmcr &= ~0x2000;1789 }1790 1791 } else if (BNX2_CHIP(bp) == BNX2_CHIP_5708) {1792 if (bp->req_line_speed == SPEED_2500)1793 new_bmcr |= BCM5708S_BMCR_FORCE_2500;1794 else1795 new_bmcr = bmcr & ~BCM5708S_BMCR_FORCE_2500;1796 }1797 1798 if (bp->req_duplex == DUPLEX_FULL) {1799 adv |= ADVERTISE_1000XFULL;1800 new_bmcr |= BMCR_FULLDPLX;1801 }1802 else {1803 adv |= ADVERTISE_1000XHALF;1804 new_bmcr &= ~BMCR_FULLDPLX;1805 }1806 if ((new_bmcr != bmcr) || (force_link_down)) {1807 /* Force a link down visible on the other side */1808 if (bp->link_up) {1809 bnx2_write_phy(bp, bp->mii_adv, adv &1810 ~(ADVERTISE_1000XFULL |1811 ADVERTISE_1000XHALF));1812 bnx2_write_phy(bp, bp->mii_bmcr, bmcr |1813 BMCR_ANRESTART | BMCR_ANENABLE);1814 1815 bp->link_up = 0;1816 netif_carrier_off(bp->dev);1817 bnx2_write_phy(bp, bp->mii_bmcr, new_bmcr);1818 bnx2_report_link(bp);1819 }1820 bnx2_write_phy(bp, bp->mii_adv, adv);1821 bnx2_write_phy(bp, bp->mii_bmcr, new_bmcr);1822 } else {1823 bnx2_resolve_flow_ctrl(bp);1824 bnx2_set_mac_link(bp);1825 }1826 return 0;1827 }1828 1829 bnx2_test_and_enable_2g5(bp);1830 1831 if (bp->advertising & ADVERTISED_1000baseT_Full)1832 new_adv |= ADVERTISE_1000XFULL;1833 1834 new_adv |= bnx2_phy_get_pause_adv(bp);1835 1836 bnx2_read_phy(bp, bp->mii_adv, &adv);1837 bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);1838 1839 bp->serdes_an_pending = 0;1840 if ((adv != new_adv) || ((bmcr & BMCR_ANENABLE) == 0)) {1841 /* Force a link down visible on the other side */1842 if (bp->link_up) {1843 bnx2_write_phy(bp, bp->mii_bmcr, BMCR_LOOPBACK);1844 spin_unlock_bh(&bp->phy_lock);1845 msleep(20);1846 spin_lock_bh(&bp->phy_lock);1847 }1848 1849 bnx2_write_phy(bp, bp->mii_adv, new_adv);1850 bnx2_write_phy(bp, bp->mii_bmcr, bmcr | BMCR_ANRESTART |1851 BMCR_ANENABLE);1852 /* Speed up link-up time when the link partner1853 * does not autonegotiate which is very common1854 * in blade servers. Some blade servers use1855 * IPMI for kerboard input and it's important1856 * to minimize link disruptions. Autoneg. involves1857 * exchanging base pages plus 3 next pages and1858 * normally completes in about 120 msec.1859 */1860 bp->current_interval = BNX2_SERDES_AN_TIMEOUT;1861 bp->serdes_an_pending = 1;1862 mod_timer(&bp->timer, jiffies + bp->current_interval);1863 } else {1864 bnx2_resolve_flow_ctrl(bp);1865 bnx2_set_mac_link(bp);1866 }1867 1868 return 0;1869}1870 1871#define ETHTOOL_ALL_FIBRE_SPEED \1872 (bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE) ? \1873 (ADVERTISED_2500baseX_Full | ADVERTISED_1000baseT_Full) :\1874 (ADVERTISED_1000baseT_Full)1875 1876#define ETHTOOL_ALL_COPPER_SPEED \1877 (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | \1878 ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | \1879 ADVERTISED_1000baseT_Full)1880 1881#define PHY_ALL_10_100_SPEED (ADVERTISE_10HALF | ADVERTISE_10FULL | \1882 ADVERTISE_100HALF | ADVERTISE_100FULL | ADVERTISE_CSMA)1883 1884#define PHY_ALL_1000_SPEED (ADVERTISE_1000HALF | ADVERTISE_1000FULL)1885 1886static void1887bnx2_set_default_remote_link(struct bnx2 *bp)1888{1889 u32 link;1890 1891 if (bp->phy_port == PORT_TP)1892 link = bnx2_shmem_rd(bp, BNX2_RPHY_COPPER_LINK);1893 else1894 link = bnx2_shmem_rd(bp, BNX2_RPHY_SERDES_LINK);1895 1896 if (link & BNX2_NETLINK_SET_LINK_ENABLE_AUTONEG) {1897 bp->req_line_speed = 0;1898 bp->autoneg |= AUTONEG_SPEED;1899 bp->advertising = ADVERTISED_Autoneg;1900 if (link & BNX2_NETLINK_SET_LINK_SPEED_10HALF)1901 bp->advertising |= ADVERTISED_10baseT_Half;1902 if (link & BNX2_NETLINK_SET_LINK_SPEED_10FULL)1903 bp->advertising |= ADVERTISED_10baseT_Full;1904 if (link & BNX2_NETLINK_SET_LINK_SPEED_100HALF)1905 bp->advertising |= ADVERTISED_100baseT_Half;1906 if (link & BNX2_NETLINK_SET_LINK_SPEED_100FULL)1907 bp->advertising |= ADVERTISED_100baseT_Full;1908 if (link & BNX2_NETLINK_SET_LINK_SPEED_1GFULL)1909 bp->advertising |= ADVERTISED_1000baseT_Full;1910 if (link & BNX2_NETLINK_SET_LINK_SPEED_2G5FULL)1911 bp->advertising |= ADVERTISED_2500baseX_Full;1912 } else {1913 bp->autoneg = 0;1914 bp->advertising = 0;1915 bp->req_duplex = DUPLEX_FULL;1916 if (link & BNX2_NETLINK_SET_LINK_SPEED_10) {1917 bp->req_line_speed = SPEED_10;1918 if (link & BNX2_NETLINK_SET_LINK_SPEED_10HALF)1919 bp->req_duplex = DUPLEX_HALF;1920 }1921 if (link & BNX2_NETLINK_SET_LINK_SPEED_100) {1922 bp->req_line_speed = SPEED_100;1923 if (link & BNX2_NETLINK_SET_LINK_SPEED_100HALF)1924 bp->req_duplex = DUPLEX_HALF;1925 }1926 if (link & BNX2_NETLINK_SET_LINK_SPEED_1GFULL)1927 bp->req_line_speed = SPEED_1000;1928 if (link & BNX2_NETLINK_SET_LINK_SPEED_2G5FULL)1929 bp->req_line_speed = SPEED_2500;1930 }1931}1932 1933static void1934bnx2_set_default_link(struct bnx2 *bp)1935{1936 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP) {1937 bnx2_set_default_remote_link(bp);1938 return;1939 }1940 1941 bp->autoneg = AUTONEG_SPEED | AUTONEG_FLOW_CTRL;1942 bp->req_line_speed = 0;1943 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {1944 u32 reg;1945 1946 bp->advertising = ETHTOOL_ALL_FIBRE_SPEED | ADVERTISED_Autoneg;1947 1948 reg = bnx2_shmem_rd(bp, BNX2_PORT_HW_CFG_CONFIG);1949 reg &= BNX2_PORT_HW_CFG_CFG_DFLT_LINK_MASK;1950 if (reg == BNX2_PORT_HW_CFG_CFG_DFLT_LINK_1G) {1951 bp->autoneg = 0;1952 bp->req_line_speed = bp->line_speed = SPEED_1000;1953 bp->req_duplex = DUPLEX_FULL;1954 }1955 } else1956 bp->advertising = ETHTOOL_ALL_COPPER_SPEED | ADVERTISED_Autoneg;1957}1958 1959static void1960bnx2_send_heart_beat(struct bnx2 *bp)1961{1962 u32 msg;1963 u32 addr;1964 1965 spin_lock(&bp->indirect_lock);1966 msg = (u32) (++bp->fw_drv_pulse_wr_seq & BNX2_DRV_PULSE_SEQ_MASK);1967 addr = bp->shmem_base + BNX2_DRV_PULSE_MB;1968 BNX2_WR(bp, BNX2_PCICFG_REG_WINDOW_ADDRESS, addr);1969 BNX2_WR(bp, BNX2_PCICFG_REG_WINDOW, msg);1970 spin_unlock(&bp->indirect_lock);1971}1972 1973static void1974bnx2_remote_phy_event(struct bnx2 *bp)1975{1976 u32 msg;1977 u8 link_up = bp->link_up;1978 u8 old_port;1979 1980 msg = bnx2_shmem_rd(bp, BNX2_LINK_STATUS);1981 1982 if (msg & BNX2_LINK_STATUS_HEART_BEAT_EXPIRED)1983 bnx2_send_heart_beat(bp);1984 1985 msg &= ~BNX2_LINK_STATUS_HEART_BEAT_EXPIRED;1986 1987 if ((msg & BNX2_LINK_STATUS_LINK_UP) == BNX2_LINK_STATUS_LINK_DOWN)1988 bp->link_up = 0;1989 else {1990 u32 speed;1991 1992 bp->link_up = 1;1993 speed = msg & BNX2_LINK_STATUS_SPEED_MASK;1994 bp->duplex = DUPLEX_FULL;1995 switch (speed) {1996 case BNX2_LINK_STATUS_10HALF:1997 bp->duplex = DUPLEX_HALF;1998 fallthrough;1999 case BNX2_LINK_STATUS_10FULL:2000 bp->line_speed = SPEED_10;2001 break;2002 case BNX2_LINK_STATUS_100HALF:2003 bp->duplex = DUPLEX_HALF;2004 fallthrough;2005 case BNX2_LINK_STATUS_100BASE_T4:2006 case BNX2_LINK_STATUS_100FULL:2007 bp->line_speed = SPEED_100;2008 break;2009 case BNX2_LINK_STATUS_1000HALF:2010 bp->duplex = DUPLEX_HALF;2011 fallthrough;2012 case BNX2_LINK_STATUS_1000FULL:2013 bp->line_speed = SPEED_1000;2014 break;2015 case BNX2_LINK_STATUS_2500HALF:2016 bp->duplex = DUPLEX_HALF;2017 fallthrough;2018 case BNX2_LINK_STATUS_2500FULL:2019 bp->line_speed = SPEED_2500;2020 break;2021 default:2022 bp->line_speed = 0;2023 break;2024 }2025 2026 bp->flow_ctrl = 0;2027 if ((bp->autoneg & (AUTONEG_SPEED | AUTONEG_FLOW_CTRL)) !=2028 (AUTONEG_SPEED | AUTONEG_FLOW_CTRL)) {2029 if (bp->duplex == DUPLEX_FULL)2030 bp->flow_ctrl = bp->req_flow_ctrl;2031 } else {2032 if (msg & BNX2_LINK_STATUS_TX_FC_ENABLED)2033 bp->flow_ctrl |= FLOW_CTRL_TX;2034 if (msg & BNX2_LINK_STATUS_RX_FC_ENABLED)2035 bp->flow_ctrl |= FLOW_CTRL_RX;2036 }2037 2038 old_port = bp->phy_port;2039 if (msg & BNX2_LINK_STATUS_SERDES_LINK)2040 bp->phy_port = PORT_FIBRE;2041 else2042 bp->phy_port = PORT_TP;2043 2044 if (old_port != bp->phy_port)2045 bnx2_set_default_link(bp);2046 2047 }2048 if (bp->link_up != link_up)2049 bnx2_report_link(bp);2050 2051 bnx2_set_mac_link(bp);2052}2053 2054static int2055bnx2_set_remote_link(struct bnx2 *bp)2056{2057 u32 evt_code;2058 2059 evt_code = bnx2_shmem_rd(bp, BNX2_FW_EVT_CODE_MB);2060 switch (evt_code) {2061 case BNX2_FW_EVT_CODE_LINK_EVENT:2062 bnx2_remote_phy_event(bp);2063 break;2064 case BNX2_FW_EVT_CODE_SW_TIMER_EXPIRATION_EVENT:2065 default:2066 bnx2_send_heart_beat(bp);2067 break;2068 }2069 return 0;2070}2071 2072static int2073bnx2_setup_copper_phy(struct bnx2 *bp)2074__releases(&bp->phy_lock)2075__acquires(&bp->phy_lock)2076{2077 u32 bmcr, adv_reg, new_adv = 0;2078 u32 new_bmcr;2079 2080 bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);2081 2082 bnx2_read_phy(bp, bp->mii_adv, &adv_reg);2083 adv_reg &= (PHY_ALL_10_100_SPEED | ADVERTISE_PAUSE_CAP |2084 ADVERTISE_PAUSE_ASYM);2085 2086 new_adv = ADVERTISE_CSMA | ethtool_adv_to_mii_adv_t(bp->advertising);2087 2088 if (bp->autoneg & AUTONEG_SPEED) {2089 u32 adv1000_reg;2090 u32 new_adv1000 = 0;2091 2092 new_adv |= bnx2_phy_get_pause_adv(bp);2093 2094 bnx2_read_phy(bp, MII_CTRL1000, &adv1000_reg);2095 adv1000_reg &= PHY_ALL_1000_SPEED;2096 2097 new_adv1000 |= ethtool_adv_to_mii_ctrl1000_t(bp->advertising);2098 if ((adv1000_reg != new_adv1000) ||2099 (adv_reg != new_adv) ||2100 ((bmcr & BMCR_ANENABLE) == 0)) {2101 2102 bnx2_write_phy(bp, bp->mii_adv, new_adv);2103 bnx2_write_phy(bp, MII_CTRL1000, new_adv1000);2104 bnx2_write_phy(bp, bp->mii_bmcr, BMCR_ANRESTART |2105 BMCR_ANENABLE);2106 }2107 else if (bp->link_up) {2108 /* Flow ctrl may have changed from auto to forced */2109 /* or vice-versa. */2110 2111 bnx2_resolve_flow_ctrl(bp);2112 bnx2_set_mac_link(bp);2113 }2114 return 0;2115 }2116 2117 /* advertise nothing when forcing speed */2118 if (adv_reg != new_adv)2119 bnx2_write_phy(bp, bp->mii_adv, new_adv);2120 2121 new_bmcr = 0;2122 if (bp->req_line_speed == SPEED_100) {2123 new_bmcr |= BMCR_SPEED100;2124 }2125 if (bp->req_duplex == DUPLEX_FULL) {2126 new_bmcr |= BMCR_FULLDPLX;2127 }2128 if (new_bmcr != bmcr) {2129 u32 bmsr;2130 2131 bnx2_read_phy(bp, bp->mii_bmsr, &bmsr);2132 bnx2_read_phy(bp, bp->mii_bmsr, &bmsr);2133 2134 if (bmsr & BMSR_LSTATUS) {2135 /* Force link down */2136 bnx2_write_phy(bp, bp->mii_bmcr, BMCR_LOOPBACK);2137 spin_unlock_bh(&bp->phy_lock);2138 msleep(50);2139 spin_lock_bh(&bp->phy_lock);2140 2141 bnx2_read_phy(bp, bp->mii_bmsr, &bmsr);2142 bnx2_read_phy(bp, bp->mii_bmsr, &bmsr);2143 }2144 2145 bnx2_write_phy(bp, bp->mii_bmcr, new_bmcr);2146 2147 /* Normally, the new speed is setup after the link has2148 * gone down and up again. In some cases, link will not go2149 * down so we need to set up the new speed here.2150 */2151 if (bmsr & BMSR_LSTATUS) {2152 bp->line_speed = bp->req_line_speed;2153 bp->duplex = bp->req_duplex;2154 bnx2_resolve_flow_ctrl(bp);2155 bnx2_set_mac_link(bp);2156 }2157 } else {2158 bnx2_resolve_flow_ctrl(bp);2159 bnx2_set_mac_link(bp);2160 }2161 return 0;2162}2163 2164static int2165bnx2_setup_phy(struct bnx2 *bp, u8 port)2166__releases(&bp->phy_lock)2167__acquires(&bp->phy_lock)2168{2169 if (bp->loopback == MAC_LOOPBACK)2170 return 0;2171 2172 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {2173 return bnx2_setup_serdes_phy(bp, port);2174 }2175 else {2176 return bnx2_setup_copper_phy(bp);2177 }2178}2179 2180static int2181bnx2_init_5709s_phy(struct bnx2 *bp, int reset_phy)2182{2183 u32 val;2184 2185 bp->mii_bmcr = MII_BMCR + 0x10;2186 bp->mii_bmsr = MII_BMSR + 0x10;2187 bp->mii_bmsr1 = MII_BNX2_GP_TOP_AN_STATUS1;2188 bp->mii_adv = MII_ADVERTISE + 0x10;2189 bp->mii_lpa = MII_LPA + 0x10;2190 bp->mii_up1 = MII_BNX2_OVER1G_UP1;2191 2192 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_AER);2193 bnx2_write_phy(bp, MII_BNX2_AER_AER, MII_BNX2_AER_AER_AN_MMD);2194 2195 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_COMBO_IEEEB0);2196 if (reset_phy)2197 bnx2_reset_phy(bp);2198 2199 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_SERDES_DIG);2200 2201 bnx2_read_phy(bp, MII_BNX2_SERDES_DIG_1000XCTL1, &val);2202 val &= ~MII_BNX2_SD_1000XCTL1_AUTODET;2203 val |= MII_BNX2_SD_1000XCTL1_FIBER;2204 bnx2_write_phy(bp, MII_BNX2_SERDES_DIG_1000XCTL1, val);2205 2206 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_OVER1G);2207 bnx2_read_phy(bp, MII_BNX2_OVER1G_UP1, &val);2208 if (bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE)2209 val |= BCM5708S_UP1_2G5;2210 else2211 val &= ~BCM5708S_UP1_2G5;2212 bnx2_write_phy(bp, MII_BNX2_OVER1G_UP1, val);2213 2214 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_BAM_NXTPG);2215 bnx2_read_phy(bp, MII_BNX2_BAM_NXTPG_CTL, &val);2216 val |= MII_BNX2_NXTPG_CTL_T2 | MII_BNX2_NXTPG_CTL_BAM;2217 bnx2_write_phy(bp, MII_BNX2_BAM_NXTPG_CTL, val);2218 2219 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_CL73_USERB0);2220 2221 val = MII_BNX2_CL73_BAM_EN | MII_BNX2_CL73_BAM_STA_MGR_EN |2222 MII_BNX2_CL73_BAM_NP_AFT_BP_EN;2223 bnx2_write_phy(bp, MII_BNX2_CL73_BAM_CTL1, val);2224 2225 bnx2_write_phy(bp, MII_BNX2_BLK_ADDR, MII_BNX2_BLK_ADDR_COMBO_IEEEB0);2226 2227 return 0;2228}2229 2230static int2231bnx2_init_5708s_phy(struct bnx2 *bp, int reset_phy)2232{2233 u32 val;2234 2235 if (reset_phy)2236 bnx2_reset_phy(bp);2237 2238 bp->mii_up1 = BCM5708S_UP1;2239 2240 bnx2_write_phy(bp, BCM5708S_BLK_ADDR, BCM5708S_BLK_ADDR_DIG3);2241 bnx2_write_phy(bp, BCM5708S_DIG_3_0, BCM5708S_DIG_3_0_USE_IEEE);2242 bnx2_write_phy(bp, BCM5708S_BLK_ADDR, BCM5708S_BLK_ADDR_DIG);2243 2244 bnx2_read_phy(bp, BCM5708S_1000X_CTL1, &val);2245 val |= BCM5708S_1000X_CTL1_FIBER_MODE | BCM5708S_1000X_CTL1_AUTODET_EN;2246 bnx2_write_phy(bp, BCM5708S_1000X_CTL1, val);2247 2248 bnx2_read_phy(bp, BCM5708S_1000X_CTL2, &val);2249 val |= BCM5708S_1000X_CTL2_PLLEL_DET_EN;2250 bnx2_write_phy(bp, BCM5708S_1000X_CTL2, val);2251 2252 if (bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE) {2253 bnx2_read_phy(bp, BCM5708S_UP1, &val);2254 val |= BCM5708S_UP1_2G5;2255 bnx2_write_phy(bp, BCM5708S_UP1, val);2256 }2257 2258 if ((BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5708_A0) ||2259 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5708_B0) ||2260 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5708_B1)) {2261 /* increase tx signal amplitude */2262 bnx2_write_phy(bp, BCM5708S_BLK_ADDR,2263 BCM5708S_BLK_ADDR_TX_MISC);2264 bnx2_read_phy(bp, BCM5708S_TX_ACTL1, &val);2265 val &= ~BCM5708S_TX_ACTL1_DRIVER_VCM;2266 bnx2_write_phy(bp, BCM5708S_TX_ACTL1, val);2267 bnx2_write_phy(bp, BCM5708S_BLK_ADDR, BCM5708S_BLK_ADDR_DIG);2268 }2269 2270 val = bnx2_shmem_rd(bp, BNX2_PORT_HW_CFG_CONFIG) &2271 BNX2_PORT_HW_CFG_CFG_TXCTL3_MASK;2272 2273 if (val) {2274 u32 is_backplane;2275 2276 is_backplane = bnx2_shmem_rd(bp, BNX2_SHARED_HW_CFG_CONFIG);2277 if (is_backplane & BNX2_SHARED_HW_CFG_PHY_BACKPLANE) {2278 bnx2_write_phy(bp, BCM5708S_BLK_ADDR,2279 BCM5708S_BLK_ADDR_TX_MISC);2280 bnx2_write_phy(bp, BCM5708S_TX_ACTL3, val);2281 bnx2_write_phy(bp, BCM5708S_BLK_ADDR,2282 BCM5708S_BLK_ADDR_DIG);2283 }2284 }2285 return 0;2286}2287 2288static int2289bnx2_init_5706s_phy(struct bnx2 *bp, int reset_phy)2290{2291 if (reset_phy)2292 bnx2_reset_phy(bp);2293 2294 bp->phy_flags &= ~BNX2_PHY_FLAG_PARALLEL_DETECT;2295 2296 if (BNX2_CHIP(bp) == BNX2_CHIP_5706)2297 BNX2_WR(bp, BNX2_MISC_GP_HW_CTL0, 0x300);2298 2299 if (bp->dev->mtu > ETH_DATA_LEN) {2300 u32 val;2301 2302 /* Set extended packet length bit */2303 bnx2_write_phy(bp, 0x18, 0x7);2304 bnx2_read_phy(bp, 0x18, &val);2305 bnx2_write_phy(bp, 0x18, (val & 0xfff8) | 0x4000);2306 2307 bnx2_write_phy(bp, 0x1c, 0x6c00);2308 bnx2_read_phy(bp, 0x1c, &val);2309 bnx2_write_phy(bp, 0x1c, (val & 0x3ff) | 0xec02);2310 }2311 else {2312 u32 val;2313 2314 bnx2_write_phy(bp, 0x18, 0x7);2315 bnx2_read_phy(bp, 0x18, &val);2316 bnx2_write_phy(bp, 0x18, val & ~0x4007);2317 2318 bnx2_write_phy(bp, 0x1c, 0x6c00);2319 bnx2_read_phy(bp, 0x1c, &val);2320 bnx2_write_phy(bp, 0x1c, (val & 0x3fd) | 0xec00);2321 }2322 2323 return 0;2324}2325 2326static int2327bnx2_init_copper_phy(struct bnx2 *bp, int reset_phy)2328{2329 u32 val;2330 2331 if (reset_phy)2332 bnx2_reset_phy(bp);2333 2334 if (bp->phy_flags & BNX2_PHY_FLAG_CRC_FIX) {2335 bnx2_write_phy(bp, 0x18, 0x0c00);2336 bnx2_write_phy(bp, 0x17, 0x000a);2337 bnx2_write_phy(bp, 0x15, 0x310b);2338 bnx2_write_phy(bp, 0x17, 0x201f);2339 bnx2_write_phy(bp, 0x15, 0x9506);2340 bnx2_write_phy(bp, 0x17, 0x401f);2341 bnx2_write_phy(bp, 0x15, 0x14e2);2342 bnx2_write_phy(bp, 0x18, 0x0400);2343 }2344 2345 if (bp->phy_flags & BNX2_PHY_FLAG_DIS_EARLY_DAC) {2346 bnx2_write_phy(bp, MII_BNX2_DSP_ADDRESS,2347 MII_BNX2_DSP_EXPAND_REG | 0x8);2348 bnx2_read_phy(bp, MII_BNX2_DSP_RW_PORT, &val);2349 val &= ~(1 << 8);2350 bnx2_write_phy(bp, MII_BNX2_DSP_RW_PORT, val);2351 }2352 2353 if (bp->dev->mtu > ETH_DATA_LEN) {2354 /* Set extended packet length bit */2355 bnx2_write_phy(bp, 0x18, 0x7);2356 bnx2_read_phy(bp, 0x18, &val);2357 bnx2_write_phy(bp, 0x18, val | 0x4000);2358 2359 bnx2_read_phy(bp, 0x10, &val);2360 bnx2_write_phy(bp, 0x10, val | 0x1);2361 }2362 else {2363 bnx2_write_phy(bp, 0x18, 0x7);2364 bnx2_read_phy(bp, 0x18, &val);2365 bnx2_write_phy(bp, 0x18, val & ~0x4007);2366 2367 bnx2_read_phy(bp, 0x10, &val);2368 bnx2_write_phy(bp, 0x10, val & ~0x1);2369 }2370 2371 /* ethernet@wirespeed */2372 bnx2_write_phy(bp, MII_BNX2_AUX_CTL, AUX_CTL_MISC_CTL);2373 bnx2_read_phy(bp, MII_BNX2_AUX_CTL, &val);2374 val |= AUX_CTL_MISC_CTL_WR | AUX_CTL_MISC_CTL_WIRESPEED;2375 2376 /* auto-mdix */2377 if (BNX2_CHIP(bp) == BNX2_CHIP_5709)2378 val |= AUX_CTL_MISC_CTL_AUTOMDIX;2379 2380 bnx2_write_phy(bp, MII_BNX2_AUX_CTL, val);2381 return 0;2382}2383 2384 2385static int2386bnx2_init_phy(struct bnx2 *bp, int reset_phy)2387__releases(&bp->phy_lock)2388__acquires(&bp->phy_lock)2389{2390 u32 val;2391 int rc = 0;2392 2393 bp->phy_flags &= ~BNX2_PHY_FLAG_INT_MODE_MASK;2394 bp->phy_flags |= BNX2_PHY_FLAG_INT_MODE_LINK_READY;2395 2396 bp->mii_bmcr = MII_BMCR;2397 bp->mii_bmsr = MII_BMSR;2398 bp->mii_bmsr1 = MII_BMSR;2399 bp->mii_adv = MII_ADVERTISE;2400 bp->mii_lpa = MII_LPA;2401 2402 BNX2_WR(bp, BNX2_EMAC_ATTENTION_ENA, BNX2_EMAC_ATTENTION_ENA_LINK);2403 2404 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)2405 goto setup_phy;2406 2407 bnx2_read_phy(bp, MII_PHYSID1, &val);2408 bp->phy_id = val << 16;2409 bnx2_read_phy(bp, MII_PHYSID2, &val);2410 bp->phy_id |= val & 0xffff;2411 2412 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {2413 if (BNX2_CHIP(bp) == BNX2_CHIP_5706)2414 rc = bnx2_init_5706s_phy(bp, reset_phy);2415 else if (BNX2_CHIP(bp) == BNX2_CHIP_5708)2416 rc = bnx2_init_5708s_phy(bp, reset_phy);2417 else if (BNX2_CHIP(bp) == BNX2_CHIP_5709)2418 rc = bnx2_init_5709s_phy(bp, reset_phy);2419 }2420 else {2421 rc = bnx2_init_copper_phy(bp, reset_phy);2422 }2423 2424setup_phy:2425 if (!rc)2426 rc = bnx2_setup_phy(bp, bp->phy_port);2427 2428 return rc;2429}2430 2431static int2432bnx2_set_mac_loopback(struct bnx2 *bp)2433{2434 u32 mac_mode;2435 2436 mac_mode = BNX2_RD(bp, BNX2_EMAC_MODE);2437 mac_mode &= ~BNX2_EMAC_MODE_PORT;2438 mac_mode |= BNX2_EMAC_MODE_MAC_LOOP | BNX2_EMAC_MODE_FORCE_LINK;2439 BNX2_WR(bp, BNX2_EMAC_MODE, mac_mode);2440 bp->link_up = 1;2441 return 0;2442}2443 2444static int bnx2_test_link(struct bnx2 *);2445 2446static int2447bnx2_set_phy_loopback(struct bnx2 *bp)2448{2449 u32 mac_mode;2450 int rc, i;2451 2452 spin_lock_bh(&bp->phy_lock);2453 rc = bnx2_write_phy(bp, bp->mii_bmcr, BMCR_LOOPBACK | BMCR_FULLDPLX |2454 BMCR_SPEED1000);2455 spin_unlock_bh(&bp->phy_lock);2456 if (rc)2457 return rc;2458 2459 for (i = 0; i < 10; i++) {2460 if (bnx2_test_link(bp) == 0)2461 break;2462 msleep(100);2463 }2464 2465 mac_mode = BNX2_RD(bp, BNX2_EMAC_MODE);2466 mac_mode &= ~(BNX2_EMAC_MODE_PORT | BNX2_EMAC_MODE_HALF_DUPLEX |2467 BNX2_EMAC_MODE_MAC_LOOP | BNX2_EMAC_MODE_FORCE_LINK |2468 BNX2_EMAC_MODE_25G_MODE);2469 2470 mac_mode |= BNX2_EMAC_MODE_PORT_GMII;2471 BNX2_WR(bp, BNX2_EMAC_MODE, mac_mode);2472 bp->link_up = 1;2473 return 0;2474}2475 2476static void2477bnx2_dump_mcp_state(struct bnx2 *bp)2478{2479 struct net_device *dev = bp->dev;2480 u32 mcp_p0, mcp_p1;2481 2482 netdev_err(dev, "<--- start MCP states dump --->\n");2483 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {2484 mcp_p0 = BNX2_MCP_STATE_P0;2485 mcp_p1 = BNX2_MCP_STATE_P1;2486 } else {2487 mcp_p0 = BNX2_MCP_STATE_P0_5708;2488 mcp_p1 = BNX2_MCP_STATE_P1_5708;2489 }2490 netdev_err(dev, "DEBUG: MCP_STATE_P0[%08x] MCP_STATE_P1[%08x]\n",2491 bnx2_reg_rd_ind(bp, mcp_p0), bnx2_reg_rd_ind(bp, mcp_p1));2492 netdev_err(dev, "DEBUG: MCP mode[%08x] state[%08x] evt_mask[%08x]\n",2493 bnx2_reg_rd_ind(bp, BNX2_MCP_CPU_MODE),2494 bnx2_reg_rd_ind(bp, BNX2_MCP_CPU_STATE),2495 bnx2_reg_rd_ind(bp, BNX2_MCP_CPU_EVENT_MASK));2496 netdev_err(dev, "DEBUG: pc[%08x] pc[%08x] instr[%08x]\n",2497 bnx2_reg_rd_ind(bp, BNX2_MCP_CPU_PROGRAM_COUNTER),2498 bnx2_reg_rd_ind(bp, BNX2_MCP_CPU_PROGRAM_COUNTER),2499 bnx2_reg_rd_ind(bp, BNX2_MCP_CPU_INSTRUCTION));2500 netdev_err(dev, "DEBUG: shmem states:\n");2501 netdev_err(dev, "DEBUG: drv_mb[%08x] fw_mb[%08x] link_status[%08x]",2502 bnx2_shmem_rd(bp, BNX2_DRV_MB),2503 bnx2_shmem_rd(bp, BNX2_FW_MB),2504 bnx2_shmem_rd(bp, BNX2_LINK_STATUS));2505 pr_cont(" drv_pulse_mb[%08x]\n", bnx2_shmem_rd(bp, BNX2_DRV_PULSE_MB));2506 netdev_err(dev, "DEBUG: dev_info_signature[%08x] reset_type[%08x]",2507 bnx2_shmem_rd(bp, BNX2_DEV_INFO_SIGNATURE),2508 bnx2_shmem_rd(bp, BNX2_BC_STATE_RESET_TYPE));2509 pr_cont(" condition[%08x]\n",2510 bnx2_shmem_rd(bp, BNX2_BC_STATE_CONDITION));2511 DP_SHMEM_LINE(bp, BNX2_BC_RESET_TYPE);2512 DP_SHMEM_LINE(bp, 0x3cc);2513 DP_SHMEM_LINE(bp, 0x3dc);2514 DP_SHMEM_LINE(bp, 0x3ec);2515 netdev_err(dev, "DEBUG: 0x3fc[%08x]\n", bnx2_shmem_rd(bp, 0x3fc));2516 netdev_err(dev, "<--- end MCP states dump --->\n");2517}2518 2519static int2520bnx2_fw_sync(struct bnx2 *bp, u32 msg_data, int ack, int silent)2521{2522 int i;2523 u32 val;2524 2525 bp->fw_wr_seq++;2526 msg_data |= bp->fw_wr_seq;2527 bp->fw_last_msg = msg_data;2528 2529 bnx2_shmem_wr(bp, BNX2_DRV_MB, msg_data);2530 2531 if (!ack)2532 return 0;2533 2534 /* wait for an acknowledgement. */2535 for (i = 0; i < (BNX2_FW_ACK_TIME_OUT_MS / 10); i++) {2536 msleep(10);2537 2538 val = bnx2_shmem_rd(bp, BNX2_FW_MB);2539 2540 if ((val & BNX2_FW_MSG_ACK) == (msg_data & BNX2_DRV_MSG_SEQ))2541 break;2542 }2543 if ((msg_data & BNX2_DRV_MSG_DATA) == BNX2_DRV_MSG_DATA_WAIT0)2544 return 0;2545 2546 /* If we timed out, inform the firmware that this is the case. */2547 if ((val & BNX2_FW_MSG_ACK) != (msg_data & BNX2_DRV_MSG_SEQ)) {2548 msg_data &= ~BNX2_DRV_MSG_CODE;2549 msg_data |= BNX2_DRV_MSG_CODE_FW_TIMEOUT;2550 2551 bnx2_shmem_wr(bp, BNX2_DRV_MB, msg_data);2552 if (!silent) {2553 pr_err("fw sync timeout, reset code = %x\n", msg_data);2554 bnx2_dump_mcp_state(bp);2555 }2556 2557 return -EBUSY;2558 }2559 2560 if ((val & BNX2_FW_MSG_STATUS_MASK) != BNX2_FW_MSG_STATUS_OK)2561 return -EIO;2562 2563 return 0;2564}2565 2566static int2567bnx2_init_5709_context(struct bnx2 *bp)2568{2569 int i, ret = 0;2570 u32 val;2571 2572 val = BNX2_CTX_COMMAND_ENABLED | BNX2_CTX_COMMAND_MEM_INIT | (1 << 12);2573 val |= (BNX2_PAGE_BITS - 8) << 16;2574 BNX2_WR(bp, BNX2_CTX_COMMAND, val);2575 for (i = 0; i < 10; i++) {2576 val = BNX2_RD(bp, BNX2_CTX_COMMAND);2577 if (!(val & BNX2_CTX_COMMAND_MEM_INIT))2578 break;2579 udelay(2);2580 }2581 if (val & BNX2_CTX_COMMAND_MEM_INIT)2582 return -EBUSY;2583 2584 for (i = 0; i < bp->ctx_pages; i++) {2585 int j;2586 2587 if (bp->ctx_blk[i])2588 memset(bp->ctx_blk[i], 0, BNX2_PAGE_SIZE);2589 else2590 return -ENOMEM;2591 2592 BNX2_WR(bp, BNX2_CTX_HOST_PAGE_TBL_DATA0,2593 (bp->ctx_blk_mapping[i] & 0xffffffff) |2594 BNX2_CTX_HOST_PAGE_TBL_DATA0_VALID);2595 BNX2_WR(bp, BNX2_CTX_HOST_PAGE_TBL_DATA1,2596 (u64) bp->ctx_blk_mapping[i] >> 32);2597 BNX2_WR(bp, BNX2_CTX_HOST_PAGE_TBL_CTRL, i |2598 BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ);2599 for (j = 0; j < 10; j++) {2600 2601 val = BNX2_RD(bp, BNX2_CTX_HOST_PAGE_TBL_CTRL);2602 if (!(val & BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ))2603 break;2604 udelay(5);2605 }2606 if (val & BNX2_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ) {2607 ret = -EBUSY;2608 break;2609 }2610 }2611 return ret;2612}2613 2614static void2615bnx2_init_context(struct bnx2 *bp)2616{2617 u32 vcid;2618 2619 vcid = 96;2620 while (vcid) {2621 u32 vcid_addr, pcid_addr, offset;2622 int i;2623 2624 vcid--;2625 2626 if (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A0) {2627 u32 new_vcid;2628 2629 vcid_addr = GET_PCID_ADDR(vcid);2630 if (vcid & 0x8) {2631 new_vcid = 0x60 + (vcid & 0xf0) + (vcid & 0x7);2632 }2633 else {2634 new_vcid = vcid;2635 }2636 pcid_addr = GET_PCID_ADDR(new_vcid);2637 }2638 else {2639 vcid_addr = GET_CID_ADDR(vcid);2640 pcid_addr = vcid_addr;2641 }2642 2643 for (i = 0; i < (CTX_SIZE / PHY_CTX_SIZE); i++) {2644 vcid_addr += (i << PHY_CTX_SHIFT);2645 pcid_addr += (i << PHY_CTX_SHIFT);2646 2647 BNX2_WR(bp, BNX2_CTX_VIRT_ADDR, vcid_addr);2648 BNX2_WR(bp, BNX2_CTX_PAGE_TBL, pcid_addr);2649 2650 /* Zero out the context. */2651 for (offset = 0; offset < PHY_CTX_SIZE; offset += 4)2652 bnx2_ctx_wr(bp, vcid_addr, offset, 0);2653 }2654 }2655}2656 2657static int2658bnx2_alloc_bad_rbuf(struct bnx2 *bp)2659{2660 u16 *good_mbuf;2661 u32 good_mbuf_cnt;2662 u32 val;2663 2664 good_mbuf = kmalloc_array(512, sizeof(u16), GFP_KERNEL);2665 if (!good_mbuf)2666 return -ENOMEM;2667 2668 BNX2_WR(bp, BNX2_MISC_ENABLE_SET_BITS,2669 BNX2_MISC_ENABLE_SET_BITS_RX_MBUF_ENABLE);2670 2671 good_mbuf_cnt = 0;2672 2673 /* Allocate a bunch of mbufs and save the good ones in an array. */2674 val = bnx2_reg_rd_ind(bp, BNX2_RBUF_STATUS1);2675 while (val & BNX2_RBUF_STATUS1_FREE_COUNT) {2676 bnx2_reg_wr_ind(bp, BNX2_RBUF_COMMAND,2677 BNX2_RBUF_COMMAND_ALLOC_REQ);2678 2679 val = bnx2_reg_rd_ind(bp, BNX2_RBUF_FW_BUF_ALLOC);2680 2681 val &= BNX2_RBUF_FW_BUF_ALLOC_VALUE;2682 2683 /* The addresses with Bit 9 set are bad memory blocks. */2684 if (!(val & (1 << 9))) {2685 good_mbuf[good_mbuf_cnt] = (u16) val;2686 good_mbuf_cnt++;2687 }2688 2689 val = bnx2_reg_rd_ind(bp, BNX2_RBUF_STATUS1);2690 }2691 2692 /* Free the good ones back to the mbuf pool thus discarding2693 * all the bad ones. */2694 while (good_mbuf_cnt) {2695 good_mbuf_cnt--;2696 2697 val = good_mbuf[good_mbuf_cnt];2698 val = (val << 9) | val | 1;2699 2700 bnx2_reg_wr_ind(bp, BNX2_RBUF_FW_BUF_FREE, val);2701 }2702 kfree(good_mbuf);2703 return 0;2704}2705 2706static void2707bnx2_set_mac_addr(struct bnx2 *bp, const u8 *mac_addr, u32 pos)2708{2709 u32 val;2710 2711 val = (mac_addr[0] << 8) | mac_addr[1];2712 2713 BNX2_WR(bp, BNX2_EMAC_MAC_MATCH0 + (pos * 8), val);2714 2715 val = (mac_addr[2] << 24) | (mac_addr[3] << 16) |2716 (mac_addr[4] << 8) | mac_addr[5];2717 2718 BNX2_WR(bp, BNX2_EMAC_MAC_MATCH1 + (pos * 8), val);2719}2720 2721static inline int2722bnx2_alloc_rx_page(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr, u16 index, gfp_t gfp)2723{2724 dma_addr_t mapping;2725 struct bnx2_sw_pg *rx_pg = &rxr->rx_pg_ring[index];2726 struct bnx2_rx_bd *rxbd =2727 &rxr->rx_pg_desc_ring[BNX2_RX_RING(index)][BNX2_RX_IDX(index)];2728 struct page *page = alloc_page(gfp);2729 2730 if (!page)2731 return -ENOMEM;2732 mapping = dma_map_page(&bp->pdev->dev, page, 0, PAGE_SIZE,2733 DMA_FROM_DEVICE);2734 if (dma_mapping_error(&bp->pdev->dev, mapping)) {2735 __free_page(page);2736 return -EIO;2737 }2738 2739 rx_pg->page = page;2740 dma_unmap_addr_set(rx_pg, mapping, mapping);2741 rxbd->rx_bd_haddr_hi = (u64) mapping >> 32;2742 rxbd->rx_bd_haddr_lo = (u64) mapping & 0xffffffff;2743 return 0;2744}2745 2746static void2747bnx2_free_rx_page(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr, u16 index)2748{2749 struct bnx2_sw_pg *rx_pg = &rxr->rx_pg_ring[index];2750 struct page *page = rx_pg->page;2751 2752 if (!page)2753 return;2754 2755 dma_unmap_page(&bp->pdev->dev, dma_unmap_addr(rx_pg, mapping),2756 PAGE_SIZE, DMA_FROM_DEVICE);2757 2758 __free_page(page);2759 rx_pg->page = NULL;2760}2761 2762static inline int2763bnx2_alloc_rx_data(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr, u16 index, gfp_t gfp)2764{2765 u8 *data;2766 struct bnx2_sw_bd *rx_buf = &rxr->rx_buf_ring[index];2767 dma_addr_t mapping;2768 struct bnx2_rx_bd *rxbd =2769 &rxr->rx_desc_ring[BNX2_RX_RING(index)][BNX2_RX_IDX(index)];2770 2771 data = kmalloc(bp->rx_buf_size, gfp);2772 if (!data)2773 return -ENOMEM;2774 2775 mapping = dma_map_single(&bp->pdev->dev,2776 get_l2_fhdr(data),2777 bp->rx_buf_use_size,2778 DMA_FROM_DEVICE);2779 if (dma_mapping_error(&bp->pdev->dev, mapping)) {2780 kfree(data);2781 return -EIO;2782 }2783 2784 rx_buf->data = data;2785 dma_unmap_addr_set(rx_buf, mapping, mapping);2786 2787 rxbd->rx_bd_haddr_hi = (u64) mapping >> 32;2788 rxbd->rx_bd_haddr_lo = (u64) mapping & 0xffffffff;2789 2790 rxr->rx_prod_bseq += bp->rx_buf_use_size;2791 2792 return 0;2793}2794 2795static int2796bnx2_phy_event_is_set(struct bnx2 *bp, struct bnx2_napi *bnapi, u32 event)2797{2798 struct status_block *sblk = bnapi->status_blk.msi;2799 u32 new_link_state, old_link_state;2800 int is_set = 1;2801 2802 new_link_state = sblk->status_attn_bits & event;2803 old_link_state = sblk->status_attn_bits_ack & event;2804 if (new_link_state != old_link_state) {2805 if (new_link_state)2806 BNX2_WR(bp, BNX2_PCICFG_STATUS_BIT_SET_CMD, event);2807 else2808 BNX2_WR(bp, BNX2_PCICFG_STATUS_BIT_CLEAR_CMD, event);2809 } else2810 is_set = 0;2811 2812 return is_set;2813}2814 2815static void2816bnx2_phy_int(struct bnx2 *bp, struct bnx2_napi *bnapi)2817{2818 spin_lock(&bp->phy_lock);2819 2820 if (bnx2_phy_event_is_set(bp, bnapi, STATUS_ATTN_BITS_LINK_STATE))2821 bnx2_set_link(bp);2822 if (bnx2_phy_event_is_set(bp, bnapi, STATUS_ATTN_BITS_TIMER_ABORT))2823 bnx2_set_remote_link(bp);2824 2825 spin_unlock(&bp->phy_lock);2826 2827}2828 2829static inline u162830bnx2_get_hw_tx_cons(struct bnx2_napi *bnapi)2831{2832 u16 cons;2833 2834 cons = READ_ONCE(*bnapi->hw_tx_cons_ptr);2835 2836 if (unlikely((cons & BNX2_MAX_TX_DESC_CNT) == BNX2_MAX_TX_DESC_CNT))2837 cons++;2838 return cons;2839}2840 2841static int2842bnx2_tx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget)2843{2844 struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;2845 u16 hw_cons, sw_cons, sw_ring_cons;2846 int tx_pkt = 0, index;2847 unsigned int tx_bytes = 0;2848 struct netdev_queue *txq;2849 2850 index = (bnapi - bp->bnx2_napi);2851 txq = netdev_get_tx_queue(bp->dev, index);2852 2853 hw_cons = bnx2_get_hw_tx_cons(bnapi);2854 sw_cons = txr->tx_cons;2855 2856 while (sw_cons != hw_cons) {2857 struct bnx2_sw_tx_bd *tx_buf;2858 struct sk_buff *skb;2859 int i, last;2860 2861 sw_ring_cons = BNX2_TX_RING_IDX(sw_cons);2862 2863 tx_buf = &txr->tx_buf_ring[sw_ring_cons];2864 skb = tx_buf->skb;2865 2866 /* prefetch skb_end_pointer() to speedup skb_shinfo(skb) */2867 prefetch(&skb->end);2868 2869 /* partial BD completions possible with TSO packets */2870 if (tx_buf->is_gso) {2871 u16 last_idx, last_ring_idx;2872 2873 last_idx = sw_cons + tx_buf->nr_frags + 1;2874 last_ring_idx = sw_ring_cons + tx_buf->nr_frags + 1;2875 if (unlikely(last_ring_idx >= BNX2_MAX_TX_DESC_CNT)) {2876 last_idx++;2877 }2878 if (((s16) ((s16) last_idx - (s16) hw_cons)) > 0) {2879 break;2880 }2881 }2882 2883 dma_unmap_single(&bp->pdev->dev, dma_unmap_addr(tx_buf, mapping),2884 skb_headlen(skb), DMA_TO_DEVICE);2885 2886 tx_buf->skb = NULL;2887 last = tx_buf->nr_frags;2888 2889 for (i = 0; i < last; i++) {2890 struct bnx2_sw_tx_bd *tx_buf;2891 2892 sw_cons = BNX2_NEXT_TX_BD(sw_cons);2893 2894 tx_buf = &txr->tx_buf_ring[BNX2_TX_RING_IDX(sw_cons)];2895 dma_unmap_page(&bp->pdev->dev,2896 dma_unmap_addr(tx_buf, mapping),2897 skb_frag_size(&skb_shinfo(skb)->frags[i]),2898 DMA_TO_DEVICE);2899 }2900 2901 sw_cons = BNX2_NEXT_TX_BD(sw_cons);2902 2903 tx_bytes += skb->len;2904 dev_kfree_skb_any(skb);2905 tx_pkt++;2906 if (tx_pkt == budget)2907 break;2908 2909 if (hw_cons == sw_cons)2910 hw_cons = bnx2_get_hw_tx_cons(bnapi);2911 }2912 2913 netdev_tx_completed_queue(txq, tx_pkt, tx_bytes);2914 txr->hw_tx_cons = hw_cons;2915 txr->tx_cons = sw_cons;2916 2917 /* Need to make the tx_cons update visible to bnx2_start_xmit()2918 * before checking for netif_tx_queue_stopped(). Without the2919 * memory barrier, there is a small possibility that bnx2_start_xmit()2920 * will miss it and cause the queue to be stopped forever.2921 */2922 smp_mb();2923 2924 if (unlikely(netif_tx_queue_stopped(txq)) &&2925 (bnx2_tx_avail(bp, txr) > bp->tx_wake_thresh)) {2926 __netif_tx_lock(txq, smp_processor_id());2927 if ((netif_tx_queue_stopped(txq)) &&2928 (bnx2_tx_avail(bp, txr) > bp->tx_wake_thresh))2929 netif_tx_wake_queue(txq);2930 __netif_tx_unlock(txq);2931 }2932 2933 return tx_pkt;2934}2935 2936static void2937bnx2_reuse_rx_skb_pages(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr,2938 struct sk_buff *skb, int count)2939{2940 struct bnx2_sw_pg *cons_rx_pg, *prod_rx_pg;2941 struct bnx2_rx_bd *cons_bd, *prod_bd;2942 int i;2943 u16 hw_prod, prod;2944 u16 cons = rxr->rx_pg_cons;2945 2946 cons_rx_pg = &rxr->rx_pg_ring[cons];2947 2948 /* The caller was unable to allocate a new page to replace the2949 * last one in the frags array, so we need to recycle that page2950 * and then free the skb.2951 */2952 if (skb) {2953 struct page *page;2954 struct skb_shared_info *shinfo;2955 2956 shinfo = skb_shinfo(skb);2957 shinfo->nr_frags--;2958 page = skb_frag_page(&shinfo->frags[shinfo->nr_frags]);2959 2960 cons_rx_pg->page = page;2961 dev_kfree_skb(skb);2962 }2963 2964 hw_prod = rxr->rx_pg_prod;2965 2966 for (i = 0; i < count; i++) {2967 prod = BNX2_RX_PG_RING_IDX(hw_prod);2968 2969 prod_rx_pg = &rxr->rx_pg_ring[prod];2970 cons_rx_pg = &rxr->rx_pg_ring[cons];2971 cons_bd = &rxr->rx_pg_desc_ring[BNX2_RX_RING(cons)]2972 [BNX2_RX_IDX(cons)];2973 prod_bd = &rxr->rx_pg_desc_ring[BNX2_RX_RING(prod)]2974 [BNX2_RX_IDX(prod)];2975 2976 if (prod != cons) {2977 prod_rx_pg->page = cons_rx_pg->page;2978 cons_rx_pg->page = NULL;2979 dma_unmap_addr_set(prod_rx_pg, mapping,2980 dma_unmap_addr(cons_rx_pg, mapping));2981 2982 prod_bd->rx_bd_haddr_hi = cons_bd->rx_bd_haddr_hi;2983 prod_bd->rx_bd_haddr_lo = cons_bd->rx_bd_haddr_lo;2984 2985 }2986 cons = BNX2_RX_PG_RING_IDX(BNX2_NEXT_RX_BD(cons));2987 hw_prod = BNX2_NEXT_RX_BD(hw_prod);2988 }2989 rxr->rx_pg_prod = hw_prod;2990 rxr->rx_pg_cons = cons;2991}2992 2993static inline void2994bnx2_reuse_rx_data(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr,2995 u8 *data, u16 cons, u16 prod)2996{2997 struct bnx2_sw_bd *cons_rx_buf, *prod_rx_buf;2998 struct bnx2_rx_bd *cons_bd, *prod_bd;2999 3000 cons_rx_buf = &rxr->rx_buf_ring[cons];3001 prod_rx_buf = &rxr->rx_buf_ring[prod];3002 3003 dma_sync_single_for_device(&bp->pdev->dev,3004 dma_unmap_addr(cons_rx_buf, mapping),3005 BNX2_RX_OFFSET + BNX2_RX_COPY_THRESH, DMA_FROM_DEVICE);3006 3007 rxr->rx_prod_bseq += bp->rx_buf_use_size;3008 3009 prod_rx_buf->data = data;3010 3011 if (cons == prod)3012 return;3013 3014 dma_unmap_addr_set(prod_rx_buf, mapping,3015 dma_unmap_addr(cons_rx_buf, mapping));3016 3017 cons_bd = &rxr->rx_desc_ring[BNX2_RX_RING(cons)][BNX2_RX_IDX(cons)];3018 prod_bd = &rxr->rx_desc_ring[BNX2_RX_RING(prod)][BNX2_RX_IDX(prod)];3019 prod_bd->rx_bd_haddr_hi = cons_bd->rx_bd_haddr_hi;3020 prod_bd->rx_bd_haddr_lo = cons_bd->rx_bd_haddr_lo;3021}3022 3023static struct sk_buff *3024bnx2_rx_skb(struct bnx2 *bp, struct bnx2_rx_ring_info *rxr, u8 *data,3025 unsigned int len, unsigned int hdr_len, dma_addr_t dma_addr,3026 u32 ring_idx)3027{3028 int err;3029 u16 prod = ring_idx & 0xffff;3030 struct sk_buff *skb;3031 3032 err = bnx2_alloc_rx_data(bp, rxr, prod, GFP_ATOMIC);3033 if (unlikely(err)) {3034 bnx2_reuse_rx_data(bp, rxr, data, (u16) (ring_idx >> 16), prod);3035error:3036 if (hdr_len) {3037 unsigned int raw_len = len + 4;3038 int pages = PAGE_ALIGN(raw_len - hdr_len) >> PAGE_SHIFT;3039 3040 bnx2_reuse_rx_skb_pages(bp, rxr, NULL, pages);3041 }3042 return NULL;3043 }3044 3045 dma_unmap_single(&bp->pdev->dev, dma_addr, bp->rx_buf_use_size,3046 DMA_FROM_DEVICE);3047 skb = slab_build_skb(data);3048 if (!skb) {3049 kfree(data);3050 goto error;3051 }3052 skb_reserve(skb, ((u8 *)get_l2_fhdr(data) - data) + BNX2_RX_OFFSET);3053 if (hdr_len == 0) {3054 skb_put(skb, len);3055 return skb;3056 } else {3057 unsigned int i, frag_len, frag_size, pages;3058 struct bnx2_sw_pg *rx_pg;3059 u16 pg_cons = rxr->rx_pg_cons;3060 u16 pg_prod = rxr->rx_pg_prod;3061 3062 frag_size = len + 4 - hdr_len;3063 pages = PAGE_ALIGN(frag_size) >> PAGE_SHIFT;3064 skb_put(skb, hdr_len);3065 3066 for (i = 0; i < pages; i++) {3067 dma_addr_t mapping_old;3068 3069 frag_len = min(frag_size, (unsigned int) PAGE_SIZE);3070 if (unlikely(frag_len <= 4)) {3071 unsigned int tail = 4 - frag_len;3072 3073 rxr->rx_pg_cons = pg_cons;3074 rxr->rx_pg_prod = pg_prod;3075 bnx2_reuse_rx_skb_pages(bp, rxr, NULL,3076 pages - i);3077 skb->len -= tail;3078 if (i == 0) {3079 skb->tail -= tail;3080 } else {3081 skb_frag_t *frag =3082 &skb_shinfo(skb)->frags[i - 1];3083 skb_frag_size_sub(frag, tail);3084 skb->data_len -= tail;3085 }3086 return skb;3087 }3088 rx_pg = &rxr->rx_pg_ring[pg_cons];3089 3090 /* Don't unmap yet. If we're unable to allocate a new3091 * page, we need to recycle the page and the DMA addr.3092 */3093 mapping_old = dma_unmap_addr(rx_pg, mapping);3094 if (i == pages - 1)3095 frag_len -= 4;3096 3097 skb_fill_page_desc(skb, i, rx_pg->page, 0, frag_len);3098 rx_pg->page = NULL;3099 3100 err = bnx2_alloc_rx_page(bp, rxr,3101 BNX2_RX_PG_RING_IDX(pg_prod),3102 GFP_ATOMIC);3103 if (unlikely(err)) {3104 rxr->rx_pg_cons = pg_cons;3105 rxr->rx_pg_prod = pg_prod;3106 bnx2_reuse_rx_skb_pages(bp, rxr, skb,3107 pages - i);3108 return NULL;3109 }3110 3111 dma_unmap_page(&bp->pdev->dev, mapping_old,3112 PAGE_SIZE, DMA_FROM_DEVICE);3113 3114 frag_size -= frag_len;3115 skb->data_len += frag_len;3116 skb->truesize += PAGE_SIZE;3117 skb->len += frag_len;3118 3119 pg_prod = BNX2_NEXT_RX_BD(pg_prod);3120 pg_cons = BNX2_RX_PG_RING_IDX(BNX2_NEXT_RX_BD(pg_cons));3121 }3122 rxr->rx_pg_prod = pg_prod;3123 rxr->rx_pg_cons = pg_cons;3124 }3125 return skb;3126}3127 3128static inline u163129bnx2_get_hw_rx_cons(struct bnx2_napi *bnapi)3130{3131 u16 cons;3132 3133 cons = READ_ONCE(*bnapi->hw_rx_cons_ptr);3134 3135 if (unlikely((cons & BNX2_MAX_RX_DESC_CNT) == BNX2_MAX_RX_DESC_CNT))3136 cons++;3137 return cons;3138}3139 3140static int3141bnx2_rx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget)3142{3143 struct bnx2_rx_ring_info *rxr = &bnapi->rx_ring;3144 u16 hw_cons, sw_cons, sw_ring_cons, sw_prod, sw_ring_prod;3145 struct l2_fhdr *rx_hdr;3146 int rx_pkt = 0, pg_ring_used = 0;3147 3148 if (budget <= 0)3149 return rx_pkt;3150 3151 hw_cons = bnx2_get_hw_rx_cons(bnapi);3152 sw_cons = rxr->rx_cons;3153 sw_prod = rxr->rx_prod;3154 3155 /* Memory barrier necessary as speculative reads of the rx3156 * buffer can be ahead of the index in the status block3157 */3158 rmb();3159 while (sw_cons != hw_cons) {3160 unsigned int len, hdr_len;3161 u32 status;3162 struct bnx2_sw_bd *rx_buf, *next_rx_buf;3163 struct sk_buff *skb;3164 dma_addr_t dma_addr;3165 u8 *data;3166 u16 next_ring_idx;3167 3168 sw_ring_cons = BNX2_RX_RING_IDX(sw_cons);3169 sw_ring_prod = BNX2_RX_RING_IDX(sw_prod);3170 3171 rx_buf = &rxr->rx_buf_ring[sw_ring_cons];3172 data = rx_buf->data;3173 rx_buf->data = NULL;3174 3175 rx_hdr = get_l2_fhdr(data);3176 prefetch(rx_hdr);3177 3178 dma_addr = dma_unmap_addr(rx_buf, mapping);3179 3180 dma_sync_single_for_cpu(&bp->pdev->dev, dma_addr,3181 BNX2_RX_OFFSET + BNX2_RX_COPY_THRESH,3182 DMA_FROM_DEVICE);3183 3184 next_ring_idx = BNX2_RX_RING_IDX(BNX2_NEXT_RX_BD(sw_cons));3185 next_rx_buf = &rxr->rx_buf_ring[next_ring_idx];3186 prefetch(get_l2_fhdr(next_rx_buf->data));3187 3188 len = rx_hdr->l2_fhdr_pkt_len;3189 status = rx_hdr->l2_fhdr_status;3190 3191 hdr_len = 0;3192 if (status & L2_FHDR_STATUS_SPLIT) {3193 hdr_len = rx_hdr->l2_fhdr_ip_xsum;3194 pg_ring_used = 1;3195 } else if (len > bp->rx_jumbo_thresh) {3196 hdr_len = bp->rx_jumbo_thresh;3197 pg_ring_used = 1;3198 }3199 3200 if (unlikely(status & (L2_FHDR_ERRORS_BAD_CRC |3201 L2_FHDR_ERRORS_PHY_DECODE |3202 L2_FHDR_ERRORS_ALIGNMENT |3203 L2_FHDR_ERRORS_TOO_SHORT |3204 L2_FHDR_ERRORS_GIANT_FRAME))) {3205 3206 bnx2_reuse_rx_data(bp, rxr, data, sw_ring_cons,3207 sw_ring_prod);3208 if (pg_ring_used) {3209 int pages;3210 3211 pages = PAGE_ALIGN(len - hdr_len) >> PAGE_SHIFT;3212 3213 bnx2_reuse_rx_skb_pages(bp, rxr, NULL, pages);3214 }3215 goto next_rx;3216 }3217 3218 len -= 4;3219 3220 if (len <= bp->rx_copy_thresh) {3221 skb = netdev_alloc_skb(bp->dev, len + 6);3222 if (!skb) {3223 bnx2_reuse_rx_data(bp, rxr, data, sw_ring_cons,3224 sw_ring_prod);3225 goto next_rx;3226 }3227 3228 /* aligned copy */3229 memcpy(skb->data,3230 (u8 *)rx_hdr + BNX2_RX_OFFSET - 6,3231 len + 6);3232 skb_reserve(skb, 6);3233 skb_put(skb, len);3234 3235 bnx2_reuse_rx_data(bp, rxr, data,3236 sw_ring_cons, sw_ring_prod);3237 3238 } else {3239 skb = bnx2_rx_skb(bp, rxr, data, len, hdr_len, dma_addr,3240 (sw_ring_cons << 16) | sw_ring_prod);3241 if (!skb)3242 goto next_rx;3243 }3244 if ((status & L2_FHDR_STATUS_L2_VLAN_TAG) &&3245 !(bp->rx_mode & BNX2_EMAC_RX_MODE_KEEP_VLAN_TAG))3246 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rx_hdr->l2_fhdr_vlan_tag);3247 3248 skb->protocol = eth_type_trans(skb, bp->dev);3249 3250 if (len > (bp->dev->mtu + ETH_HLEN) &&3251 skb->protocol != htons(0x8100) &&3252 skb->protocol != htons(ETH_P_8021AD)) {3253 3254 dev_kfree_skb(skb);3255 goto next_rx;3256 3257 }3258 3259 skb_checksum_none_assert(skb);3260 if ((bp->dev->features & NETIF_F_RXCSUM) &&3261 (status & (L2_FHDR_STATUS_TCP_SEGMENT |3262 L2_FHDR_STATUS_UDP_DATAGRAM))) {3263 3264 if (likely((status & (L2_FHDR_ERRORS_TCP_XSUM |3265 L2_FHDR_ERRORS_UDP_XSUM)) == 0))3266 skb->ip_summed = CHECKSUM_UNNECESSARY;3267 }3268 if ((bp->dev->features & NETIF_F_RXHASH) &&3269 ((status & L2_FHDR_STATUS_USE_RXHASH) ==3270 L2_FHDR_STATUS_USE_RXHASH))3271 skb_set_hash(skb, rx_hdr->l2_fhdr_hash,3272 PKT_HASH_TYPE_L3);3273 3274 skb_record_rx_queue(skb, bnapi - &bp->bnx2_napi[0]);3275 napi_gro_receive(&bnapi->napi, skb);3276 rx_pkt++;3277 3278next_rx:3279 sw_cons = BNX2_NEXT_RX_BD(sw_cons);3280 sw_prod = BNX2_NEXT_RX_BD(sw_prod);3281 3282 if (rx_pkt == budget)3283 break;3284 3285 /* Refresh hw_cons to see if there is new work */3286 if (sw_cons == hw_cons) {3287 hw_cons = bnx2_get_hw_rx_cons(bnapi);3288 rmb();3289 }3290 }3291 rxr->rx_cons = sw_cons;3292 rxr->rx_prod = sw_prod;3293 3294 if (pg_ring_used)3295 BNX2_WR16(bp, rxr->rx_pg_bidx_addr, rxr->rx_pg_prod);3296 3297 BNX2_WR16(bp, rxr->rx_bidx_addr, sw_prod);3298 3299 BNX2_WR(bp, rxr->rx_bseq_addr, rxr->rx_prod_bseq);3300 3301 return rx_pkt;3302 3303}3304 3305/* MSI ISR - The only difference between this and the INTx ISR3306 * is that the MSI interrupt is always serviced.3307 */3308static irqreturn_t3309bnx2_msi(int irq, void *dev_instance)3310{3311 struct bnx2_napi *bnapi = dev_instance;3312 struct bnx2 *bp = bnapi->bp;3313 3314 prefetch(bnapi->status_blk.msi);3315 BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD,3316 BNX2_PCICFG_INT_ACK_CMD_USE_INT_HC_PARAM |3317 BNX2_PCICFG_INT_ACK_CMD_MASK_INT);3318 3319 /* Return here if interrupt is disabled. */3320 if (unlikely(atomic_read(&bp->intr_sem) != 0))3321 return IRQ_HANDLED;3322 3323 napi_schedule(&bnapi->napi);3324 3325 return IRQ_HANDLED;3326}3327 3328static irqreturn_t3329bnx2_msi_1shot(int irq, void *dev_instance)3330{3331 struct bnx2_napi *bnapi = dev_instance;3332 struct bnx2 *bp = bnapi->bp;3333 3334 prefetch(bnapi->status_blk.msi);3335 3336 /* Return here if interrupt is disabled. */3337 if (unlikely(atomic_read(&bp->intr_sem) != 0))3338 return IRQ_HANDLED;3339 3340 napi_schedule(&bnapi->napi);3341 3342 return IRQ_HANDLED;3343}3344 3345static irqreturn_t3346bnx2_interrupt(int irq, void *dev_instance)3347{3348 struct bnx2_napi *bnapi = dev_instance;3349 struct bnx2 *bp = bnapi->bp;3350 struct status_block *sblk = bnapi->status_blk.msi;3351 3352 /* When using INTx, it is possible for the interrupt to arrive3353 * at the CPU before the status block posted prior to the3354 * interrupt. Reading a register will flush the status block.3355 * When using MSI, the MSI message will always complete after3356 * the status block write.3357 */3358 if ((sblk->status_idx == bnapi->last_status_idx) &&3359 (BNX2_RD(bp, BNX2_PCICFG_MISC_STATUS) &3360 BNX2_PCICFG_MISC_STATUS_INTA_VALUE))3361 return IRQ_NONE;3362 3363 BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD,3364 BNX2_PCICFG_INT_ACK_CMD_USE_INT_HC_PARAM |3365 BNX2_PCICFG_INT_ACK_CMD_MASK_INT);3366 3367 /* Read back to deassert IRQ immediately to avoid too many3368 * spurious interrupts.3369 */3370 BNX2_RD(bp, BNX2_PCICFG_INT_ACK_CMD);3371 3372 /* Return here if interrupt is shared and is disabled. */3373 if (unlikely(atomic_read(&bp->intr_sem) != 0))3374 return IRQ_HANDLED;3375 3376 if (napi_schedule_prep(&bnapi->napi)) {3377 bnapi->last_status_idx = sblk->status_idx;3378 __napi_schedule(&bnapi->napi);3379 }3380 3381 return IRQ_HANDLED;3382}3383 3384static inline int3385bnx2_has_fast_work(struct bnx2_napi *bnapi)3386{3387 struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;3388 struct bnx2_rx_ring_info *rxr = &bnapi->rx_ring;3389 3390 if ((bnx2_get_hw_rx_cons(bnapi) != rxr->rx_cons) ||3391 (bnx2_get_hw_tx_cons(bnapi) != txr->hw_tx_cons))3392 return 1;3393 return 0;3394}3395 3396#define STATUS_ATTN_EVENTS (STATUS_ATTN_BITS_LINK_STATE | \3397 STATUS_ATTN_BITS_TIMER_ABORT)3398 3399static inline int3400bnx2_has_work(struct bnx2_napi *bnapi)3401{3402 struct status_block *sblk = bnapi->status_blk.msi;3403 3404 if (bnx2_has_fast_work(bnapi))3405 return 1;3406 3407#ifdef BCM_CNIC3408 if (bnapi->cnic_present && (bnapi->cnic_tag != sblk->status_idx))3409 return 1;3410#endif3411 3412 if ((sblk->status_attn_bits & STATUS_ATTN_EVENTS) !=3413 (sblk->status_attn_bits_ack & STATUS_ATTN_EVENTS))3414 return 1;3415 3416 return 0;3417}3418 3419static void3420bnx2_chk_missed_msi(struct bnx2 *bp)3421{3422 struct bnx2_napi *bnapi = &bp->bnx2_napi[0];3423 u32 msi_ctrl;3424 3425 if (bnx2_has_work(bnapi)) {3426 msi_ctrl = BNX2_RD(bp, BNX2_PCICFG_MSI_CONTROL);3427 if (!(msi_ctrl & BNX2_PCICFG_MSI_CONTROL_ENABLE))3428 return;3429 3430 if (bnapi->last_status_idx == bp->idle_chk_status_idx) {3431 BNX2_WR(bp, BNX2_PCICFG_MSI_CONTROL, msi_ctrl &3432 ~BNX2_PCICFG_MSI_CONTROL_ENABLE);3433 BNX2_WR(bp, BNX2_PCICFG_MSI_CONTROL, msi_ctrl);3434 bnx2_msi(bp->irq_tbl[0].vector, bnapi);3435 }3436 }3437 3438 bp->idle_chk_status_idx = bnapi->last_status_idx;3439}3440 3441#ifdef BCM_CNIC3442static void bnx2_poll_cnic(struct bnx2 *bp, struct bnx2_napi *bnapi)3443{3444 struct cnic_ops *c_ops;3445 3446 if (!bnapi->cnic_present)3447 return;3448 3449 rcu_read_lock();3450 c_ops = rcu_dereference(bp->cnic_ops);3451 if (c_ops)3452 bnapi->cnic_tag = c_ops->cnic_handler(bp->cnic_data,3453 bnapi->status_blk.msi);3454 rcu_read_unlock();3455}3456#endif3457 3458static void bnx2_poll_link(struct bnx2 *bp, struct bnx2_napi *bnapi)3459{3460 struct status_block *sblk = bnapi->status_blk.msi;3461 u32 status_attn_bits = sblk->status_attn_bits;3462 u32 status_attn_bits_ack = sblk->status_attn_bits_ack;3463 3464 if ((status_attn_bits & STATUS_ATTN_EVENTS) !=3465 (status_attn_bits_ack & STATUS_ATTN_EVENTS)) {3466 3467 bnx2_phy_int(bp, bnapi);3468 3469 /* This is needed to take care of transient status3470 * during link changes.3471 */3472 BNX2_WR(bp, BNX2_HC_COMMAND,3473 bp->hc_cmd | BNX2_HC_COMMAND_COAL_NOW_WO_INT);3474 BNX2_RD(bp, BNX2_HC_COMMAND);3475 }3476}3477 3478static int bnx2_poll_work(struct bnx2 *bp, struct bnx2_napi *bnapi,3479 int work_done, int budget)3480{3481 struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;3482 struct bnx2_rx_ring_info *rxr = &bnapi->rx_ring;3483 3484 if (bnx2_get_hw_tx_cons(bnapi) != txr->hw_tx_cons)3485 bnx2_tx_int(bp, bnapi, 0);3486 3487 if (bnx2_get_hw_rx_cons(bnapi) != rxr->rx_cons)3488 work_done += bnx2_rx_int(bp, bnapi, budget - work_done);3489 3490 return work_done;3491}3492 3493static int bnx2_poll_msix(struct napi_struct *napi, int budget)3494{3495 struct bnx2_napi *bnapi = container_of(napi, struct bnx2_napi, napi);3496 struct bnx2 *bp = bnapi->bp;3497 int work_done = 0;3498 struct status_block_msix *sblk = bnapi->status_blk.msix;3499 3500 while (1) {3501 work_done = bnx2_poll_work(bp, bnapi, work_done, budget);3502 if (unlikely(work_done >= budget))3503 break;3504 3505 bnapi->last_status_idx = sblk->status_idx;3506 /* status idx must be read before checking for more work. */3507 rmb();3508 if (likely(!bnx2_has_fast_work(bnapi))) {3509 3510 napi_complete_done(napi, work_done);3511 BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD, bnapi->int_num |3512 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID |3513 bnapi->last_status_idx);3514 break;3515 }3516 }3517 return work_done;3518}3519 3520static int bnx2_poll(struct napi_struct *napi, int budget)3521{3522 struct bnx2_napi *bnapi = container_of(napi, struct bnx2_napi, napi);3523 struct bnx2 *bp = bnapi->bp;3524 int work_done = 0;3525 struct status_block *sblk = bnapi->status_blk.msi;3526 3527 while (1) {3528 bnx2_poll_link(bp, bnapi);3529 3530 work_done = bnx2_poll_work(bp, bnapi, work_done, budget);3531 3532#ifdef BCM_CNIC3533 bnx2_poll_cnic(bp, bnapi);3534#endif3535 3536 /* bnapi->last_status_idx is used below to tell the hw how3537 * much work has been processed, so we must read it before3538 * checking for more work.3539 */3540 bnapi->last_status_idx = sblk->status_idx;3541 3542 if (unlikely(work_done >= budget))3543 break;3544 3545 rmb();3546 if (likely(!bnx2_has_work(bnapi))) {3547 napi_complete_done(napi, work_done);3548 if (likely(bp->flags & BNX2_FLAG_USING_MSI_OR_MSIX)) {3549 BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD,3550 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID |3551 bnapi->last_status_idx);3552 break;3553 }3554 BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD,3555 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID |3556 BNX2_PCICFG_INT_ACK_CMD_MASK_INT |3557 bnapi->last_status_idx);3558 3559 BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD,3560 BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID |3561 bnapi->last_status_idx);3562 break;3563 }3564 }3565 3566 return work_done;3567}3568 3569/* Called with rtnl_lock from vlan functions and also netif_tx_lock3570 * from set_multicast.3571 */3572static void3573bnx2_set_rx_mode(struct net_device *dev)3574{3575 struct bnx2 *bp = netdev_priv(dev);3576 u32 rx_mode, sort_mode;3577 struct netdev_hw_addr *ha;3578 int i;3579 3580 if (!netif_running(dev))3581 return;3582 3583 spin_lock_bh(&bp->phy_lock);3584 3585 rx_mode = bp->rx_mode & ~(BNX2_EMAC_RX_MODE_PROMISCUOUS |3586 BNX2_EMAC_RX_MODE_KEEP_VLAN_TAG);3587 sort_mode = 1 | BNX2_RPM_SORT_USER0_BC_EN;3588 if (!(dev->features & NETIF_F_HW_VLAN_CTAG_RX) &&3589 (bp->flags & BNX2_FLAG_CAN_KEEP_VLAN))3590 rx_mode |= BNX2_EMAC_RX_MODE_KEEP_VLAN_TAG;3591 if (dev->flags & IFF_PROMISC) {3592 /* Promiscuous mode. */3593 rx_mode |= BNX2_EMAC_RX_MODE_PROMISCUOUS;3594 sort_mode |= BNX2_RPM_SORT_USER0_PROM_EN |3595 BNX2_RPM_SORT_USER0_PROM_VLAN;3596 }3597 else if (dev->flags & IFF_ALLMULTI) {3598 for (i = 0; i < NUM_MC_HASH_REGISTERS; i++) {3599 BNX2_WR(bp, BNX2_EMAC_MULTICAST_HASH0 + (i * 4),3600 0xffffffff);3601 }3602 sort_mode |= BNX2_RPM_SORT_USER0_MC_EN;3603 }3604 else {3605 /* Accept one or more multicast(s). */3606 u32 mc_filter[NUM_MC_HASH_REGISTERS];3607 u32 regidx;3608 u32 bit;3609 u32 crc;3610 3611 memset(mc_filter, 0, 4 * NUM_MC_HASH_REGISTERS);3612 3613 netdev_for_each_mc_addr(ha, dev) {3614 crc = ether_crc_le(ETH_ALEN, ha->addr);3615 bit = crc & 0xff;3616 regidx = (bit & 0xe0) >> 5;3617 bit &= 0x1f;3618 mc_filter[regidx] |= (1 << bit);3619 }3620 3621 for (i = 0; i < NUM_MC_HASH_REGISTERS; i++) {3622 BNX2_WR(bp, BNX2_EMAC_MULTICAST_HASH0 + (i * 4),3623 mc_filter[i]);3624 }3625 3626 sort_mode |= BNX2_RPM_SORT_USER0_MC_HSH_EN;3627 }3628 3629 if (netdev_uc_count(dev) > BNX2_MAX_UNICAST_ADDRESSES) {3630 rx_mode |= BNX2_EMAC_RX_MODE_PROMISCUOUS;3631 sort_mode |= BNX2_RPM_SORT_USER0_PROM_EN |3632 BNX2_RPM_SORT_USER0_PROM_VLAN;3633 } else if (!(dev->flags & IFF_PROMISC)) {3634 /* Add all entries into to the match filter list */3635 i = 0;3636 netdev_for_each_uc_addr(ha, dev) {3637 bnx2_set_mac_addr(bp, ha->addr,3638 i + BNX2_START_UNICAST_ADDRESS_INDEX);3639 sort_mode |= (1 <<3640 (i + BNX2_START_UNICAST_ADDRESS_INDEX));3641 i++;3642 }3643 3644 }3645 3646 if (rx_mode != bp->rx_mode) {3647 bp->rx_mode = rx_mode;3648 BNX2_WR(bp, BNX2_EMAC_RX_MODE, rx_mode);3649 }3650 3651 BNX2_WR(bp, BNX2_RPM_SORT_USER0, 0x0);3652 BNX2_WR(bp, BNX2_RPM_SORT_USER0, sort_mode);3653 BNX2_WR(bp, BNX2_RPM_SORT_USER0, sort_mode | BNX2_RPM_SORT_USER0_ENA);3654 3655 spin_unlock_bh(&bp->phy_lock);3656}3657 3658static int3659check_fw_section(const struct firmware *fw,3660 const struct bnx2_fw_file_section *section,3661 u32 alignment, bool non_empty)3662{3663 u32 offset = be32_to_cpu(section->offset);3664 u32 len = be32_to_cpu(section->len);3665 3666 if ((offset == 0 && len != 0) || offset >= fw->size || offset & 3)3667 return -EINVAL;3668 if ((non_empty && len == 0) || len > fw->size - offset ||3669 len & (alignment - 1))3670 return -EINVAL;3671 return 0;3672}3673 3674static int3675check_mips_fw_entry(const struct firmware *fw,3676 const struct bnx2_mips_fw_file_entry *entry)3677{3678 if (check_fw_section(fw, &entry->text, 4, true) ||3679 check_fw_section(fw, &entry->data, 4, false) ||3680 check_fw_section(fw, &entry->rodata, 4, false))3681 return -EINVAL;3682 return 0;3683}3684 3685static void bnx2_release_firmware(struct bnx2 *bp)3686{3687 if (bp->rv2p_firmware) {3688 release_firmware(bp->mips_firmware);3689 release_firmware(bp->rv2p_firmware);3690 bp->rv2p_firmware = NULL;3691 }3692}3693 3694static int bnx2_request_uncached_firmware(struct bnx2 *bp)3695{3696 const char *mips_fw_file, *rv2p_fw_file;3697 const struct bnx2_mips_fw_file *mips_fw;3698 const struct bnx2_rv2p_fw_file *rv2p_fw;3699 int rc;3700 3701 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {3702 mips_fw_file = FW_MIPS_FILE_09;3703 if ((BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5709_A0) ||3704 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5709_A1))3705 rv2p_fw_file = FW_RV2P_FILE_09_Ax;3706 else3707 rv2p_fw_file = FW_RV2P_FILE_09;3708 } else {3709 mips_fw_file = FW_MIPS_FILE_06;3710 rv2p_fw_file = FW_RV2P_FILE_06;3711 }3712 3713 rc = request_firmware(&bp->mips_firmware, mips_fw_file, &bp->pdev->dev);3714 if (rc) {3715 pr_err("Can't load firmware file \"%s\"\n", mips_fw_file);3716 goto out;3717 }3718 3719 rc = request_firmware(&bp->rv2p_firmware, rv2p_fw_file, &bp->pdev->dev);3720 if (rc) {3721 pr_err("Can't load firmware file \"%s\"\n", rv2p_fw_file);3722 goto err_release_mips_firmware;3723 }3724 mips_fw = (const struct bnx2_mips_fw_file *) bp->mips_firmware->data;3725 rv2p_fw = (const struct bnx2_rv2p_fw_file *) bp->rv2p_firmware->data;3726 if (bp->mips_firmware->size < sizeof(*mips_fw) ||3727 check_mips_fw_entry(bp->mips_firmware, &mips_fw->com) ||3728 check_mips_fw_entry(bp->mips_firmware, &mips_fw->cp) ||3729 check_mips_fw_entry(bp->mips_firmware, &mips_fw->rxp) ||3730 check_mips_fw_entry(bp->mips_firmware, &mips_fw->tpat) ||3731 check_mips_fw_entry(bp->mips_firmware, &mips_fw->txp)) {3732 pr_err("Firmware file \"%s\" is invalid\n", mips_fw_file);3733 rc = -EINVAL;3734 goto err_release_firmware;3735 }3736 if (bp->rv2p_firmware->size < sizeof(*rv2p_fw) ||3737 check_fw_section(bp->rv2p_firmware, &rv2p_fw->proc1.rv2p, 8, true) ||3738 check_fw_section(bp->rv2p_firmware, &rv2p_fw->proc2.rv2p, 8, true)) {3739 pr_err("Firmware file \"%s\" is invalid\n", rv2p_fw_file);3740 rc = -EINVAL;3741 goto err_release_firmware;3742 }3743out:3744 return rc;3745 3746err_release_firmware:3747 release_firmware(bp->rv2p_firmware);3748 bp->rv2p_firmware = NULL;3749err_release_mips_firmware:3750 release_firmware(bp->mips_firmware);3751 goto out;3752}3753 3754static int bnx2_request_firmware(struct bnx2 *bp)3755{3756 return bp->rv2p_firmware ? 0 : bnx2_request_uncached_firmware(bp);3757}3758 3759static u323760rv2p_fw_fixup(u32 rv2p_proc, int idx, u32 loc, u32 rv2p_code)3761{3762 switch (idx) {3763 case RV2P_P1_FIXUP_PAGE_SIZE_IDX:3764 rv2p_code &= ~RV2P_BD_PAGE_SIZE_MSK;3765 rv2p_code |= RV2P_BD_PAGE_SIZE;3766 break;3767 }3768 return rv2p_code;3769}3770 3771static int3772load_rv2p_fw(struct bnx2 *bp, u32 rv2p_proc,3773 const struct bnx2_rv2p_fw_file_entry *fw_entry)3774{3775 u32 rv2p_code_len, file_offset;3776 __be32 *rv2p_code;3777 int i;3778 u32 val, cmd, addr;3779 3780 rv2p_code_len = be32_to_cpu(fw_entry->rv2p.len);3781 file_offset = be32_to_cpu(fw_entry->rv2p.offset);3782 3783 rv2p_code = (__be32 *)(bp->rv2p_firmware->data + file_offset);3784 3785 if (rv2p_proc == RV2P_PROC1) {3786 cmd = BNX2_RV2P_PROC1_ADDR_CMD_RDWR;3787 addr = BNX2_RV2P_PROC1_ADDR_CMD;3788 } else {3789 cmd = BNX2_RV2P_PROC2_ADDR_CMD_RDWR;3790 addr = BNX2_RV2P_PROC2_ADDR_CMD;3791 }3792 3793 for (i = 0; i < rv2p_code_len; i += 8) {3794 BNX2_WR(bp, BNX2_RV2P_INSTR_HIGH, be32_to_cpu(*rv2p_code));3795 rv2p_code++;3796 BNX2_WR(bp, BNX2_RV2P_INSTR_LOW, be32_to_cpu(*rv2p_code));3797 rv2p_code++;3798 3799 val = (i / 8) | cmd;3800 BNX2_WR(bp, addr, val);3801 }3802 3803 rv2p_code = (__be32 *)(bp->rv2p_firmware->data + file_offset);3804 for (i = 0; i < 8; i++) {3805 u32 loc, code;3806 3807 loc = be32_to_cpu(fw_entry->fixup[i]);3808 if (loc && ((loc * 4) < rv2p_code_len)) {3809 code = be32_to_cpu(*(rv2p_code + loc - 1));3810 BNX2_WR(bp, BNX2_RV2P_INSTR_HIGH, code);3811 code = be32_to_cpu(*(rv2p_code + loc));3812 code = rv2p_fw_fixup(rv2p_proc, i, loc, code);3813 BNX2_WR(bp, BNX2_RV2P_INSTR_LOW, code);3814 3815 val = (loc / 2) | cmd;3816 BNX2_WR(bp, addr, val);3817 }3818 }3819 3820 /* Reset the processor, un-stall is done later. */3821 if (rv2p_proc == RV2P_PROC1) {3822 BNX2_WR(bp, BNX2_RV2P_COMMAND, BNX2_RV2P_COMMAND_PROC1_RESET);3823 }3824 else {3825 BNX2_WR(bp, BNX2_RV2P_COMMAND, BNX2_RV2P_COMMAND_PROC2_RESET);3826 }3827 3828 return 0;3829}3830 3831static void3832load_cpu_fw(struct bnx2 *bp, const struct cpu_reg *cpu_reg,3833 const struct bnx2_mips_fw_file_entry *fw_entry)3834{3835 u32 addr, len, file_offset;3836 __be32 *data;3837 u32 offset;3838 u32 val;3839 3840 /* Halt the CPU. */3841 val = bnx2_reg_rd_ind(bp, cpu_reg->mode);3842 val |= cpu_reg->mode_value_halt;3843 bnx2_reg_wr_ind(bp, cpu_reg->mode, val);3844 bnx2_reg_wr_ind(bp, cpu_reg->state, cpu_reg->state_value_clear);3845 3846 /* Load the Text area. */3847 addr = be32_to_cpu(fw_entry->text.addr);3848 len = be32_to_cpu(fw_entry->text.len);3849 file_offset = be32_to_cpu(fw_entry->text.offset);3850 data = (__be32 *)(bp->mips_firmware->data + file_offset);3851 3852 offset = cpu_reg->spad_base + (addr - cpu_reg->mips_view_base);3853 if (len) {3854 int j;3855 3856 for (j = 0; j < (len / 4); j++, offset += 4)3857 bnx2_reg_wr_ind(bp, offset, be32_to_cpu(data[j]));3858 }3859 3860 /* Load the Data area. */3861 addr = be32_to_cpu(fw_entry->data.addr);3862 len = be32_to_cpu(fw_entry->data.len);3863 file_offset = be32_to_cpu(fw_entry->data.offset);3864 data = (__be32 *)(bp->mips_firmware->data + file_offset);3865 3866 offset = cpu_reg->spad_base + (addr - cpu_reg->mips_view_base);3867 if (len) {3868 int j;3869 3870 for (j = 0; j < (len / 4); j++, offset += 4)3871 bnx2_reg_wr_ind(bp, offset, be32_to_cpu(data[j]));3872 }3873 3874 /* Load the Read-Only area. */3875 addr = be32_to_cpu(fw_entry->rodata.addr);3876 len = be32_to_cpu(fw_entry->rodata.len);3877 file_offset = be32_to_cpu(fw_entry->rodata.offset);3878 data = (__be32 *)(bp->mips_firmware->data + file_offset);3879 3880 offset = cpu_reg->spad_base + (addr - cpu_reg->mips_view_base);3881 if (len) {3882 int j;3883 3884 for (j = 0; j < (len / 4); j++, offset += 4)3885 bnx2_reg_wr_ind(bp, offset, be32_to_cpu(data[j]));3886 }3887 3888 /* Clear the pre-fetch instruction. */3889 bnx2_reg_wr_ind(bp, cpu_reg->inst, 0);3890 3891 val = be32_to_cpu(fw_entry->start_addr);3892 bnx2_reg_wr_ind(bp, cpu_reg->pc, val);3893 3894 /* Start the CPU. */3895 val = bnx2_reg_rd_ind(bp, cpu_reg->mode);3896 val &= ~cpu_reg->mode_value_halt;3897 bnx2_reg_wr_ind(bp, cpu_reg->state, cpu_reg->state_value_clear);3898 bnx2_reg_wr_ind(bp, cpu_reg->mode, val);3899}3900 3901static void3902bnx2_init_cpus(struct bnx2 *bp)3903{3904 const struct bnx2_mips_fw_file *mips_fw =3905 (const struct bnx2_mips_fw_file *) bp->mips_firmware->data;3906 const struct bnx2_rv2p_fw_file *rv2p_fw =3907 (const struct bnx2_rv2p_fw_file *) bp->rv2p_firmware->data;3908 3909 /* Initialize the RV2P processor. */3910 load_rv2p_fw(bp, RV2P_PROC1, &rv2p_fw->proc1);3911 load_rv2p_fw(bp, RV2P_PROC2, &rv2p_fw->proc2);3912 3913 /* Initialize the RX Processor. */3914 load_cpu_fw(bp, &cpu_reg_rxp, &mips_fw->rxp);3915 3916 /* Initialize the TX Processor. */3917 load_cpu_fw(bp, &cpu_reg_txp, &mips_fw->txp);3918 3919 /* Initialize the TX Patch-up Processor. */3920 load_cpu_fw(bp, &cpu_reg_tpat, &mips_fw->tpat);3921 3922 /* Initialize the Completion Processor. */3923 load_cpu_fw(bp, &cpu_reg_com, &mips_fw->com);3924 3925 /* Initialize the Command Processor. */3926 load_cpu_fw(bp, &cpu_reg_cp, &mips_fw->cp);3927}3928 3929static void3930bnx2_setup_wol(struct bnx2 *bp)3931{3932 int i;3933 u32 val, wol_msg;3934 3935 if (bp->wol) {3936 u32 advertising;3937 u8 autoneg;3938 3939 autoneg = bp->autoneg;3940 advertising = bp->advertising;3941 3942 if (bp->phy_port == PORT_TP) {3943 bp->autoneg = AUTONEG_SPEED;3944 bp->advertising = ADVERTISED_10baseT_Half |3945 ADVERTISED_10baseT_Full |3946 ADVERTISED_100baseT_Half |3947 ADVERTISED_100baseT_Full |3948 ADVERTISED_Autoneg;3949 }3950 3951 spin_lock_bh(&bp->phy_lock);3952 bnx2_setup_phy(bp, bp->phy_port);3953 spin_unlock_bh(&bp->phy_lock);3954 3955 bp->autoneg = autoneg;3956 bp->advertising = advertising;3957 3958 bnx2_set_mac_addr(bp, bp->dev->dev_addr, 0);3959 3960 val = BNX2_RD(bp, BNX2_EMAC_MODE);3961 3962 /* Enable port mode. */3963 val &= ~BNX2_EMAC_MODE_PORT;3964 val |= BNX2_EMAC_MODE_MPKT_RCVD |3965 BNX2_EMAC_MODE_ACPI_RCVD |3966 BNX2_EMAC_MODE_MPKT;3967 if (bp->phy_port == PORT_TP) {3968 val |= BNX2_EMAC_MODE_PORT_MII;3969 } else {3970 val |= BNX2_EMAC_MODE_PORT_GMII;3971 if (bp->line_speed == SPEED_2500)3972 val |= BNX2_EMAC_MODE_25G_MODE;3973 }3974 3975 BNX2_WR(bp, BNX2_EMAC_MODE, val);3976 3977 /* receive all multicast */3978 for (i = 0; i < NUM_MC_HASH_REGISTERS; i++) {3979 BNX2_WR(bp, BNX2_EMAC_MULTICAST_HASH0 + (i * 4),3980 0xffffffff);3981 }3982 BNX2_WR(bp, BNX2_EMAC_RX_MODE, BNX2_EMAC_RX_MODE_SORT_MODE);3983 3984 val = 1 | BNX2_RPM_SORT_USER0_BC_EN | BNX2_RPM_SORT_USER0_MC_EN;3985 BNX2_WR(bp, BNX2_RPM_SORT_USER0, 0x0);3986 BNX2_WR(bp, BNX2_RPM_SORT_USER0, val);3987 BNX2_WR(bp, BNX2_RPM_SORT_USER0, val | BNX2_RPM_SORT_USER0_ENA);3988 3989 /* Need to enable EMAC and RPM for WOL. */3990 BNX2_WR(bp, BNX2_MISC_ENABLE_SET_BITS,3991 BNX2_MISC_ENABLE_SET_BITS_RX_PARSER_MAC_ENABLE |3992 BNX2_MISC_ENABLE_SET_BITS_TX_HEADER_Q_ENABLE |3993 BNX2_MISC_ENABLE_SET_BITS_EMAC_ENABLE);3994 3995 val = BNX2_RD(bp, BNX2_RPM_CONFIG);3996 val &= ~BNX2_RPM_CONFIG_ACPI_ENA;3997 BNX2_WR(bp, BNX2_RPM_CONFIG, val);3998 3999 wol_msg = BNX2_DRV_MSG_CODE_SUSPEND_WOL;4000 } else {4001 wol_msg = BNX2_DRV_MSG_CODE_SUSPEND_NO_WOL;4002 }4003 4004 if (!(bp->flags & BNX2_FLAG_NO_WOL)) {4005 u32 val;4006 4007 wol_msg |= BNX2_DRV_MSG_DATA_WAIT3;4008 if (bp->fw_last_msg || BNX2_CHIP(bp) != BNX2_CHIP_5709) {4009 bnx2_fw_sync(bp, wol_msg, 1, 0);4010 return;4011 }4012 /* Tell firmware not to power down the PHY yet, otherwise4013 * the chip will take a long time to respond to MMIO reads.4014 */4015 val = bnx2_shmem_rd(bp, BNX2_PORT_FEATURE);4016 bnx2_shmem_wr(bp, BNX2_PORT_FEATURE,4017 val | BNX2_PORT_FEATURE_ASF_ENABLED);4018 bnx2_fw_sync(bp, wol_msg, 1, 0);4019 bnx2_shmem_wr(bp, BNX2_PORT_FEATURE, val);4020 }4021 4022}4023 4024static int4025bnx2_set_power_state(struct bnx2 *bp, pci_power_t state)4026{4027 switch (state) {4028 case PCI_D0: {4029 u32 val;4030 4031 pci_enable_wake(bp->pdev, PCI_D0, false);4032 pci_set_power_state(bp->pdev, PCI_D0);4033 4034 val = BNX2_RD(bp, BNX2_EMAC_MODE);4035 val |= BNX2_EMAC_MODE_MPKT_RCVD | BNX2_EMAC_MODE_ACPI_RCVD;4036 val &= ~BNX2_EMAC_MODE_MPKT;4037 BNX2_WR(bp, BNX2_EMAC_MODE, val);4038 4039 val = BNX2_RD(bp, BNX2_RPM_CONFIG);4040 val &= ~BNX2_RPM_CONFIG_ACPI_ENA;4041 BNX2_WR(bp, BNX2_RPM_CONFIG, val);4042 break;4043 }4044 case PCI_D3hot: {4045 bnx2_setup_wol(bp);4046 pci_wake_from_d3(bp->pdev, bp->wol);4047 if ((BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A0) ||4048 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A1)) {4049 4050 if (bp->wol)4051 pci_set_power_state(bp->pdev, PCI_D3hot);4052 break;4053 4054 }4055 if (!bp->fw_last_msg && BNX2_CHIP(bp) == BNX2_CHIP_5709) {4056 u32 val;4057 4058 /* Tell firmware not to power down the PHY yet,4059 * otherwise the other port may not respond to4060 * MMIO reads.4061 */4062 val = bnx2_shmem_rd(bp, BNX2_BC_STATE_CONDITION);4063 val &= ~BNX2_CONDITION_PM_STATE_MASK;4064 val |= BNX2_CONDITION_PM_STATE_UNPREP;4065 bnx2_shmem_wr(bp, BNX2_BC_STATE_CONDITION, val);4066 }4067 pci_set_power_state(bp->pdev, PCI_D3hot);4068 4069 /* No more memory access after this point until4070 * device is brought back to D0.4071 */4072 break;4073 }4074 default:4075 return -EINVAL;4076 }4077 return 0;4078}4079 4080static int4081bnx2_acquire_nvram_lock(struct bnx2 *bp)4082{4083 u32 val;4084 int j;4085 4086 /* Request access to the flash interface. */4087 BNX2_WR(bp, BNX2_NVM_SW_ARB, BNX2_NVM_SW_ARB_ARB_REQ_SET2);4088 for (j = 0; j < NVRAM_TIMEOUT_COUNT; j++) {4089 val = BNX2_RD(bp, BNX2_NVM_SW_ARB);4090 if (val & BNX2_NVM_SW_ARB_ARB_ARB2)4091 break;4092 4093 udelay(5);4094 }4095 4096 if (j >= NVRAM_TIMEOUT_COUNT)4097 return -EBUSY;4098 4099 return 0;4100}4101 4102static int4103bnx2_release_nvram_lock(struct bnx2 *bp)4104{4105 int j;4106 u32 val;4107 4108 /* Relinquish nvram interface. */4109 BNX2_WR(bp, BNX2_NVM_SW_ARB, BNX2_NVM_SW_ARB_ARB_REQ_CLR2);4110 4111 for (j = 0; j < NVRAM_TIMEOUT_COUNT; j++) {4112 val = BNX2_RD(bp, BNX2_NVM_SW_ARB);4113 if (!(val & BNX2_NVM_SW_ARB_ARB_ARB2))4114 break;4115 4116 udelay(5);4117 }4118 4119 if (j >= NVRAM_TIMEOUT_COUNT)4120 return -EBUSY;4121 4122 return 0;4123}4124 4125 4126static int4127bnx2_enable_nvram_write(struct bnx2 *bp)4128{4129 u32 val;4130 4131 val = BNX2_RD(bp, BNX2_MISC_CFG);4132 BNX2_WR(bp, BNX2_MISC_CFG, val | BNX2_MISC_CFG_NVM_WR_EN_PCI);4133 4134 if (bp->flash_info->flags & BNX2_NV_WREN) {4135 int j;4136 4137 BNX2_WR(bp, BNX2_NVM_COMMAND, BNX2_NVM_COMMAND_DONE);4138 BNX2_WR(bp, BNX2_NVM_COMMAND,4139 BNX2_NVM_COMMAND_WREN | BNX2_NVM_COMMAND_DOIT);4140 4141 for (j = 0; j < NVRAM_TIMEOUT_COUNT; j++) {4142 udelay(5);4143 4144 val = BNX2_RD(bp, BNX2_NVM_COMMAND);4145 if (val & BNX2_NVM_COMMAND_DONE)4146 break;4147 }4148 4149 if (j >= NVRAM_TIMEOUT_COUNT)4150 return -EBUSY;4151 }4152 return 0;4153}4154 4155static void4156bnx2_disable_nvram_write(struct bnx2 *bp)4157{4158 u32 val;4159 4160 val = BNX2_RD(bp, BNX2_MISC_CFG);4161 BNX2_WR(bp, BNX2_MISC_CFG, val & ~BNX2_MISC_CFG_NVM_WR_EN);4162}4163 4164 4165static void4166bnx2_enable_nvram_access(struct bnx2 *bp)4167{4168 u32 val;4169 4170 val = BNX2_RD(bp, BNX2_NVM_ACCESS_ENABLE);4171 /* Enable both bits, even on read. */4172 BNX2_WR(bp, BNX2_NVM_ACCESS_ENABLE,4173 val | BNX2_NVM_ACCESS_ENABLE_EN | BNX2_NVM_ACCESS_ENABLE_WR_EN);4174}4175 4176static void4177bnx2_disable_nvram_access(struct bnx2 *bp)4178{4179 u32 val;4180 4181 val = BNX2_RD(bp, BNX2_NVM_ACCESS_ENABLE);4182 /* Disable both bits, even after read. */4183 BNX2_WR(bp, BNX2_NVM_ACCESS_ENABLE,4184 val & ~(BNX2_NVM_ACCESS_ENABLE_EN |4185 BNX2_NVM_ACCESS_ENABLE_WR_EN));4186}4187 4188static int4189bnx2_nvram_erase_page(struct bnx2 *bp, u32 offset)4190{4191 u32 cmd;4192 int j;4193 4194 if (bp->flash_info->flags & BNX2_NV_BUFFERED)4195 /* Buffered flash, no erase needed */4196 return 0;4197 4198 /* Build an erase command */4199 cmd = BNX2_NVM_COMMAND_ERASE | BNX2_NVM_COMMAND_WR |4200 BNX2_NVM_COMMAND_DOIT;4201 4202 /* Need to clear DONE bit separately. */4203 BNX2_WR(bp, BNX2_NVM_COMMAND, BNX2_NVM_COMMAND_DONE);4204 4205 /* Address of the NVRAM to read from. */4206 BNX2_WR(bp, BNX2_NVM_ADDR, offset & BNX2_NVM_ADDR_NVM_ADDR_VALUE);4207 4208 /* Issue an erase command. */4209 BNX2_WR(bp, BNX2_NVM_COMMAND, cmd);4210 4211 /* Wait for completion. */4212 for (j = 0; j < NVRAM_TIMEOUT_COUNT; j++) {4213 u32 val;4214 4215 udelay(5);4216 4217 val = BNX2_RD(bp, BNX2_NVM_COMMAND);4218 if (val & BNX2_NVM_COMMAND_DONE)4219 break;4220 }4221 4222 if (j >= NVRAM_TIMEOUT_COUNT)4223 return -EBUSY;4224 4225 return 0;4226}4227 4228static int4229bnx2_nvram_read_dword(struct bnx2 *bp, u32 offset, u8 *ret_val, u32 cmd_flags)4230{4231 u32 cmd;4232 int j;4233 4234 /* Build the command word. */4235 cmd = BNX2_NVM_COMMAND_DOIT | cmd_flags;4236 4237 /* Calculate an offset of a buffered flash, not needed for 5709. */4238 if (bp->flash_info->flags & BNX2_NV_TRANSLATE) {4239 offset = ((offset / bp->flash_info->page_size) <<4240 bp->flash_info->page_bits) +4241 (offset % bp->flash_info->page_size);4242 }4243 4244 /* Need to clear DONE bit separately. */4245 BNX2_WR(bp, BNX2_NVM_COMMAND, BNX2_NVM_COMMAND_DONE);4246 4247 /* Address of the NVRAM to read from. */4248 BNX2_WR(bp, BNX2_NVM_ADDR, offset & BNX2_NVM_ADDR_NVM_ADDR_VALUE);4249 4250 /* Issue a read command. */4251 BNX2_WR(bp, BNX2_NVM_COMMAND, cmd);4252 4253 /* Wait for completion. */4254 for (j = 0; j < NVRAM_TIMEOUT_COUNT; j++) {4255 u32 val;4256 4257 udelay(5);4258 4259 val = BNX2_RD(bp, BNX2_NVM_COMMAND);4260 if (val & BNX2_NVM_COMMAND_DONE) {4261 __be32 v = cpu_to_be32(BNX2_RD(bp, BNX2_NVM_READ));4262 memcpy(ret_val, &v, 4);4263 break;4264 }4265 }4266 if (j >= NVRAM_TIMEOUT_COUNT)4267 return -EBUSY;4268 4269 return 0;4270}4271 4272 4273static int4274bnx2_nvram_write_dword(struct bnx2 *bp, u32 offset, u8 *val, u32 cmd_flags)4275{4276 u32 cmd;4277 __be32 val32;4278 int j;4279 4280 /* Build the command word. */4281 cmd = BNX2_NVM_COMMAND_DOIT | BNX2_NVM_COMMAND_WR | cmd_flags;4282 4283 /* Calculate an offset of a buffered flash, not needed for 5709. */4284 if (bp->flash_info->flags & BNX2_NV_TRANSLATE) {4285 offset = ((offset / bp->flash_info->page_size) <<4286 bp->flash_info->page_bits) +4287 (offset % bp->flash_info->page_size);4288 }4289 4290 /* Need to clear DONE bit separately. */4291 BNX2_WR(bp, BNX2_NVM_COMMAND, BNX2_NVM_COMMAND_DONE);4292 4293 memcpy(&val32, val, 4);4294 4295 /* Write the data. */4296 BNX2_WR(bp, BNX2_NVM_WRITE, be32_to_cpu(val32));4297 4298 /* Address of the NVRAM to write to. */4299 BNX2_WR(bp, BNX2_NVM_ADDR, offset & BNX2_NVM_ADDR_NVM_ADDR_VALUE);4300 4301 /* Issue the write command. */4302 BNX2_WR(bp, BNX2_NVM_COMMAND, cmd);4303 4304 /* Wait for completion. */4305 for (j = 0; j < NVRAM_TIMEOUT_COUNT; j++) {4306 udelay(5);4307 4308 if (BNX2_RD(bp, BNX2_NVM_COMMAND) & BNX2_NVM_COMMAND_DONE)4309 break;4310 }4311 if (j >= NVRAM_TIMEOUT_COUNT)4312 return -EBUSY;4313 4314 return 0;4315}4316 4317static int4318bnx2_init_nvram(struct bnx2 *bp)4319{4320 u32 val;4321 int j, entry_count, rc = 0;4322 const struct flash_spec *flash;4323 4324 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {4325 bp->flash_info = &flash_5709;4326 goto get_flash_size;4327 }4328 4329 /* Determine the selected interface. */4330 val = BNX2_RD(bp, BNX2_NVM_CFG1);4331 4332 entry_count = ARRAY_SIZE(flash_table);4333 4334 if (val & 0x40000000) {4335 4336 /* Flash interface has been reconfigured */4337 for (j = 0, flash = &flash_table[0]; j < entry_count;4338 j++, flash++) {4339 if ((val & FLASH_BACKUP_STRAP_MASK) ==4340 (flash->config1 & FLASH_BACKUP_STRAP_MASK)) {4341 bp->flash_info = flash;4342 break;4343 }4344 }4345 }4346 else {4347 u32 mask;4348 /* Not yet been reconfigured */4349 4350 if (val & (1 << 23))4351 mask = FLASH_BACKUP_STRAP_MASK;4352 else4353 mask = FLASH_STRAP_MASK;4354 4355 for (j = 0, flash = &flash_table[0]; j < entry_count;4356 j++, flash++) {4357 4358 if ((val & mask) == (flash->strapping & mask)) {4359 bp->flash_info = flash;4360 4361 /* Request access to the flash interface. */4362 if ((rc = bnx2_acquire_nvram_lock(bp)) != 0)4363 return rc;4364 4365 /* Enable access to flash interface */4366 bnx2_enable_nvram_access(bp);4367 4368 /* Reconfigure the flash interface */4369 BNX2_WR(bp, BNX2_NVM_CFG1, flash->config1);4370 BNX2_WR(bp, BNX2_NVM_CFG2, flash->config2);4371 BNX2_WR(bp, BNX2_NVM_CFG3, flash->config3);4372 BNX2_WR(bp, BNX2_NVM_WRITE1, flash->write1);4373 4374 /* Disable access to flash interface */4375 bnx2_disable_nvram_access(bp);4376 bnx2_release_nvram_lock(bp);4377 4378 break;4379 }4380 }4381 } /* if (val & 0x40000000) */4382 4383 if (j == entry_count) {4384 bp->flash_info = NULL;4385 pr_alert("Unknown flash/EEPROM type\n");4386 return -ENODEV;4387 }4388 4389get_flash_size:4390 val = bnx2_shmem_rd(bp, BNX2_SHARED_HW_CFG_CONFIG2);4391 val &= BNX2_SHARED_HW_CFG2_NVM_SIZE_MASK;4392 if (val)4393 bp->flash_size = val;4394 else4395 bp->flash_size = bp->flash_info->total_size;4396 4397 return rc;4398}4399 4400static int4401bnx2_nvram_read(struct bnx2 *bp, u32 offset, u8 *ret_buf,4402 int buf_size)4403{4404 int rc = 0;4405 u32 cmd_flags, offset32, len32, extra;4406 4407 if (buf_size == 0)4408 return 0;4409 4410 /* Request access to the flash interface. */4411 if ((rc = bnx2_acquire_nvram_lock(bp)) != 0)4412 return rc;4413 4414 /* Enable access to flash interface */4415 bnx2_enable_nvram_access(bp);4416 4417 len32 = buf_size;4418 offset32 = offset;4419 extra = 0;4420 4421 cmd_flags = 0;4422 4423 if (offset32 & 3) {4424 u8 buf[4];4425 u32 pre_len;4426 4427 offset32 &= ~3;4428 pre_len = 4 - (offset & 3);4429 4430 if (pre_len >= len32) {4431 pre_len = len32;4432 cmd_flags = BNX2_NVM_COMMAND_FIRST |4433 BNX2_NVM_COMMAND_LAST;4434 }4435 else {4436 cmd_flags = BNX2_NVM_COMMAND_FIRST;4437 }4438 4439 rc = bnx2_nvram_read_dword(bp, offset32, buf, cmd_flags);4440 4441 if (rc)4442 return rc;4443 4444 memcpy(ret_buf, buf + (offset & 3), pre_len);4445 4446 offset32 += 4;4447 ret_buf += pre_len;4448 len32 -= pre_len;4449 }4450 if (len32 & 3) {4451 extra = 4 - (len32 & 3);4452 len32 = (len32 + 4) & ~3;4453 }4454 4455 if (len32 == 4) {4456 u8 buf[4];4457 4458 if (cmd_flags)4459 cmd_flags = BNX2_NVM_COMMAND_LAST;4460 else4461 cmd_flags = BNX2_NVM_COMMAND_FIRST |4462 BNX2_NVM_COMMAND_LAST;4463 4464 rc = bnx2_nvram_read_dword(bp, offset32, buf, cmd_flags);4465 4466 memcpy(ret_buf, buf, 4 - extra);4467 }4468 else if (len32 > 0) {4469 u8 buf[4];4470 4471 /* Read the first word. */4472 if (cmd_flags)4473 cmd_flags = 0;4474 else4475 cmd_flags = BNX2_NVM_COMMAND_FIRST;4476 4477 rc = bnx2_nvram_read_dword(bp, offset32, ret_buf, cmd_flags);4478 4479 /* Advance to the next dword. */4480 offset32 += 4;4481 ret_buf += 4;4482 len32 -= 4;4483 4484 while (len32 > 4 && rc == 0) {4485 rc = bnx2_nvram_read_dword(bp, offset32, ret_buf, 0);4486 4487 /* Advance to the next dword. */4488 offset32 += 4;4489 ret_buf += 4;4490 len32 -= 4;4491 }4492 4493 if (rc)4494 return rc;4495 4496 cmd_flags = BNX2_NVM_COMMAND_LAST;4497 rc = bnx2_nvram_read_dword(bp, offset32, buf, cmd_flags);4498 4499 memcpy(ret_buf, buf, 4 - extra);4500 }4501 4502 /* Disable access to flash interface */4503 bnx2_disable_nvram_access(bp);4504 4505 bnx2_release_nvram_lock(bp);4506 4507 return rc;4508}4509 4510static int4511bnx2_nvram_write(struct bnx2 *bp, u32 offset, u8 *data_buf,4512 int buf_size)4513{4514 u32 written, offset32, len32;4515 u8 *buf, start[4], end[4], *align_buf = NULL, *flash_buffer = NULL;4516 int rc = 0;4517 int align_start, align_end;4518 4519 buf = data_buf;4520 offset32 = offset;4521 len32 = buf_size;4522 align_start = align_end = 0;4523 4524 if ((align_start = (offset32 & 3))) {4525 offset32 &= ~3;4526 len32 += align_start;4527 if (len32 < 4)4528 len32 = 4;4529 if ((rc = bnx2_nvram_read(bp, offset32, start, 4)))4530 return rc;4531 }4532 4533 if (len32 & 3) {4534 align_end = 4 - (len32 & 3);4535 len32 += align_end;4536 if ((rc = bnx2_nvram_read(bp, offset32 + len32 - 4, end, 4)))4537 return rc;4538 }4539 4540 if (align_start || align_end) {4541 align_buf = kmalloc(len32, GFP_KERNEL);4542 if (!align_buf)4543 return -ENOMEM;4544 if (align_start) {4545 memcpy(align_buf, start, 4);4546 }4547 if (align_end) {4548 memcpy(align_buf + len32 - 4, end, 4);4549 }4550 memcpy(align_buf + align_start, data_buf, buf_size);4551 buf = align_buf;4552 }4553 4554 if (!(bp->flash_info->flags & BNX2_NV_BUFFERED)) {4555 flash_buffer = kmalloc(264, GFP_KERNEL);4556 if (!flash_buffer) {4557 rc = -ENOMEM;4558 goto nvram_write_end;4559 }4560 }4561 4562 written = 0;4563 while ((written < len32) && (rc == 0)) {4564 u32 page_start, page_end, data_start, data_end;4565 u32 addr, cmd_flags;4566 int i;4567 4568 /* Find the page_start addr */4569 page_start = offset32 + written;4570 page_start -= (page_start % bp->flash_info->page_size);4571 /* Find the page_end addr */4572 page_end = page_start + bp->flash_info->page_size;4573 /* Find the data_start addr */4574 data_start = (written == 0) ? offset32 : page_start;4575 /* Find the data_end addr */4576 data_end = (page_end > offset32 + len32) ?4577 (offset32 + len32) : page_end;4578 4579 /* Request access to the flash interface. */4580 if ((rc = bnx2_acquire_nvram_lock(bp)) != 0)4581 goto nvram_write_end;4582 4583 /* Enable access to flash interface */4584 bnx2_enable_nvram_access(bp);4585 4586 cmd_flags = BNX2_NVM_COMMAND_FIRST;4587 if (!(bp->flash_info->flags & BNX2_NV_BUFFERED)) {4588 int j;4589 4590 /* Read the whole page into the buffer4591 * (non-buffer flash only) */4592 for (j = 0; j < bp->flash_info->page_size; j += 4) {4593 if (j == (bp->flash_info->page_size - 4)) {4594 cmd_flags |= BNX2_NVM_COMMAND_LAST;4595 }4596 rc = bnx2_nvram_read_dword(bp,4597 page_start + j,4598 &flash_buffer[j],4599 cmd_flags);4600 4601 if (rc)4602 goto nvram_write_end;4603 4604 cmd_flags = 0;4605 }4606 }4607 4608 /* Enable writes to flash interface (unlock write-protect) */4609 if ((rc = bnx2_enable_nvram_write(bp)) != 0)4610 goto nvram_write_end;4611 4612 /* Loop to write back the buffer data from page_start to4613 * data_start */4614 i = 0;4615 if (!(bp->flash_info->flags & BNX2_NV_BUFFERED)) {4616 /* Erase the page */4617 if ((rc = bnx2_nvram_erase_page(bp, page_start)) != 0)4618 goto nvram_write_end;4619 4620 /* Re-enable the write again for the actual write */4621 bnx2_enable_nvram_write(bp);4622 4623 for (addr = page_start; addr < data_start;4624 addr += 4, i += 4) {4625 4626 rc = bnx2_nvram_write_dword(bp, addr,4627 &flash_buffer[i], cmd_flags);4628 4629 if (rc != 0)4630 goto nvram_write_end;4631 4632 cmd_flags = 0;4633 }4634 }4635 4636 /* Loop to write the new data from data_start to data_end */4637 for (addr = data_start; addr < data_end; addr += 4, i += 4) {4638 if ((addr == page_end - 4) ||4639 ((bp->flash_info->flags & BNX2_NV_BUFFERED) &&4640 (addr == data_end - 4))) {4641 4642 cmd_flags |= BNX2_NVM_COMMAND_LAST;4643 }4644 rc = bnx2_nvram_write_dword(bp, addr, buf,4645 cmd_flags);4646 4647 if (rc != 0)4648 goto nvram_write_end;4649 4650 cmd_flags = 0;4651 buf += 4;4652 }4653 4654 /* Loop to write back the buffer data from data_end4655 * to page_end */4656 if (!(bp->flash_info->flags & BNX2_NV_BUFFERED)) {4657 for (addr = data_end; addr < page_end;4658 addr += 4, i += 4) {4659 4660 if (addr == page_end-4) {4661 cmd_flags = BNX2_NVM_COMMAND_LAST;4662 }4663 rc = bnx2_nvram_write_dword(bp, addr,4664 &flash_buffer[i], cmd_flags);4665 4666 if (rc != 0)4667 goto nvram_write_end;4668 4669 cmd_flags = 0;4670 }4671 }4672 4673 /* Disable writes to flash interface (lock write-protect) */4674 bnx2_disable_nvram_write(bp);4675 4676 /* Disable access to flash interface */4677 bnx2_disable_nvram_access(bp);4678 bnx2_release_nvram_lock(bp);4679 4680 /* Increment written */4681 written += data_end - data_start;4682 }4683 4684nvram_write_end:4685 kfree(flash_buffer);4686 kfree(align_buf);4687 return rc;4688}4689 4690static void4691bnx2_init_fw_cap(struct bnx2 *bp)4692{4693 u32 val, sig = 0;4694 4695 bp->phy_flags &= ~BNX2_PHY_FLAG_REMOTE_PHY_CAP;4696 bp->flags &= ~BNX2_FLAG_CAN_KEEP_VLAN;4697 4698 if (!(bp->flags & BNX2_FLAG_ASF_ENABLE))4699 bp->flags |= BNX2_FLAG_CAN_KEEP_VLAN;4700 4701 val = bnx2_shmem_rd(bp, BNX2_FW_CAP_MB);4702 if ((val & BNX2_FW_CAP_SIGNATURE_MASK) != BNX2_FW_CAP_SIGNATURE)4703 return;4704 4705 if ((val & BNX2_FW_CAP_CAN_KEEP_VLAN) == BNX2_FW_CAP_CAN_KEEP_VLAN) {4706 bp->flags |= BNX2_FLAG_CAN_KEEP_VLAN;4707 sig |= BNX2_DRV_ACK_CAP_SIGNATURE | BNX2_FW_CAP_CAN_KEEP_VLAN;4708 }4709 4710 if ((bp->phy_flags & BNX2_PHY_FLAG_SERDES) &&4711 (val & BNX2_FW_CAP_REMOTE_PHY_CAPABLE)) {4712 u32 link;4713 4714 bp->phy_flags |= BNX2_PHY_FLAG_REMOTE_PHY_CAP;4715 4716 link = bnx2_shmem_rd(bp, BNX2_LINK_STATUS);4717 if (link & BNX2_LINK_STATUS_SERDES_LINK)4718 bp->phy_port = PORT_FIBRE;4719 else4720 bp->phy_port = PORT_TP;4721 4722 sig |= BNX2_DRV_ACK_CAP_SIGNATURE |4723 BNX2_FW_CAP_REMOTE_PHY_CAPABLE;4724 }4725 4726 if (netif_running(bp->dev) && sig)4727 bnx2_shmem_wr(bp, BNX2_DRV_ACK_CAP_MB, sig);4728}4729 4730static void4731bnx2_setup_msix_tbl(struct bnx2 *bp)4732{4733 BNX2_WR(bp, BNX2_PCI_GRC_WINDOW_ADDR, BNX2_PCI_GRC_WINDOW_ADDR_SEP_WIN);4734 4735 BNX2_WR(bp, BNX2_PCI_GRC_WINDOW2_ADDR, BNX2_MSIX_TABLE_ADDR);4736 BNX2_WR(bp, BNX2_PCI_GRC_WINDOW3_ADDR, BNX2_MSIX_PBA_ADDR);4737}4738 4739static void4740bnx2_wait_dma_complete(struct bnx2 *bp)4741{4742 u32 val;4743 int i;4744 4745 /*4746 * Wait for the current PCI transaction to complete before4747 * issuing a reset.4748 */4749 if ((BNX2_CHIP(bp) == BNX2_CHIP_5706) ||4750 (BNX2_CHIP(bp) == BNX2_CHIP_5708)) {4751 BNX2_WR(bp, BNX2_MISC_ENABLE_CLR_BITS,4752 BNX2_MISC_ENABLE_CLR_BITS_TX_DMA_ENABLE |4753 BNX2_MISC_ENABLE_CLR_BITS_DMA_ENGINE_ENABLE |4754 BNX2_MISC_ENABLE_CLR_BITS_RX_DMA_ENABLE |4755 BNX2_MISC_ENABLE_CLR_BITS_HOST_COALESCE_ENABLE);4756 val = BNX2_RD(bp, BNX2_MISC_ENABLE_CLR_BITS);4757 udelay(5);4758 } else { /* 5709 */4759 val = BNX2_RD(bp, BNX2_MISC_NEW_CORE_CTL);4760 val &= ~BNX2_MISC_NEW_CORE_CTL_DMA_ENABLE;4761 BNX2_WR(bp, BNX2_MISC_NEW_CORE_CTL, val);4762 val = BNX2_RD(bp, BNX2_MISC_NEW_CORE_CTL);4763 4764 for (i = 0; i < 100; i++) {4765 msleep(1);4766 val = BNX2_RD(bp, BNX2_PCICFG_DEVICE_CONTROL);4767 if (!(val & BNX2_PCICFG_DEVICE_STATUS_NO_PEND))4768 break;4769 }4770 }4771 4772 return;4773}4774 4775 4776static int4777bnx2_reset_chip(struct bnx2 *bp, u32 reset_code)4778{4779 u32 val;4780 int i, rc = 0;4781 u8 old_port;4782 4783 /* Wait for the current PCI transaction to complete before4784 * issuing a reset. */4785 bnx2_wait_dma_complete(bp);4786 4787 /* Wait for the firmware to tell us it is ok to issue a reset. */4788 bnx2_fw_sync(bp, BNX2_DRV_MSG_DATA_WAIT0 | reset_code, 1, 1);4789 4790 /* Deposit a driver reset signature so the firmware knows that4791 * this is a soft reset. */4792 bnx2_shmem_wr(bp, BNX2_DRV_RESET_SIGNATURE,4793 BNX2_DRV_RESET_SIGNATURE_MAGIC);4794 4795 /* Do a dummy read to force the chip to complete all current transaction4796 * before we issue a reset. */4797 val = BNX2_RD(bp, BNX2_MISC_ID);4798 4799 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {4800 BNX2_WR(bp, BNX2_MISC_COMMAND, BNX2_MISC_COMMAND_SW_RESET);4801 BNX2_RD(bp, BNX2_MISC_COMMAND);4802 udelay(5);4803 4804 val = BNX2_PCICFG_MISC_CONFIG_REG_WINDOW_ENA |4805 BNX2_PCICFG_MISC_CONFIG_TARGET_MB_WORD_SWAP;4806 4807 BNX2_WR(bp, BNX2_PCICFG_MISC_CONFIG, val);4808 4809 } else {4810 val = BNX2_PCICFG_MISC_CONFIG_CORE_RST_REQ |4811 BNX2_PCICFG_MISC_CONFIG_REG_WINDOW_ENA |4812 BNX2_PCICFG_MISC_CONFIG_TARGET_MB_WORD_SWAP;4813 4814 /* Chip reset. */4815 BNX2_WR(bp, BNX2_PCICFG_MISC_CONFIG, val);4816 4817 /* Reading back any register after chip reset will hang the4818 * bus on 5706 A0 and A1. The msleep below provides plenty4819 * of margin for write posting.4820 */4821 if ((BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A0) ||4822 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A1))4823 msleep(20);4824 4825 /* Reset takes approximate 30 usec */4826 for (i = 0; i < 10; i++) {4827 val = BNX2_RD(bp, BNX2_PCICFG_MISC_CONFIG);4828 if ((val & (BNX2_PCICFG_MISC_CONFIG_CORE_RST_REQ |4829 BNX2_PCICFG_MISC_CONFIG_CORE_RST_BSY)) == 0)4830 break;4831 udelay(10);4832 }4833 4834 if (val & (BNX2_PCICFG_MISC_CONFIG_CORE_RST_REQ |4835 BNX2_PCICFG_MISC_CONFIG_CORE_RST_BSY)) {4836 pr_err("Chip reset did not complete\n");4837 return -EBUSY;4838 }4839 }4840 4841 /* Make sure byte swapping is properly configured. */4842 val = BNX2_RD(bp, BNX2_PCI_SWAP_DIAG0);4843 if (val != 0x01020304) {4844 pr_err("Chip not in correct endian mode\n");4845 return -ENODEV;4846 }4847 4848 /* Wait for the firmware to finish its initialization. */4849 rc = bnx2_fw_sync(bp, BNX2_DRV_MSG_DATA_WAIT1 | reset_code, 1, 0);4850 if (rc)4851 return rc;4852 4853 spin_lock_bh(&bp->phy_lock);4854 old_port = bp->phy_port;4855 bnx2_init_fw_cap(bp);4856 if ((bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP) &&4857 old_port != bp->phy_port)4858 bnx2_set_default_remote_link(bp);4859 spin_unlock_bh(&bp->phy_lock);4860 4861 if (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A0) {4862 /* Adjust the voltage regular to two steps lower. The default4863 * of this register is 0x0000000e. */4864 BNX2_WR(bp, BNX2_MISC_VREG_CONTROL, 0x000000fa);4865 4866 /* Remove bad rbuf memory from the free pool. */4867 rc = bnx2_alloc_bad_rbuf(bp);4868 }4869 4870 if (bp->flags & BNX2_FLAG_USING_MSIX) {4871 bnx2_setup_msix_tbl(bp);4872 /* Prevent MSIX table reads and write from timing out */4873 BNX2_WR(bp, BNX2_MISC_ECO_HW_CTL,4874 BNX2_MISC_ECO_HW_CTL_LARGE_GRC_TMOUT_EN);4875 }4876 4877 return rc;4878}4879 4880static int4881bnx2_init_chip(struct bnx2 *bp)4882{4883 u32 val, mtu;4884 int rc, i;4885 4886 /* Make sure the interrupt is not active. */4887 BNX2_WR(bp, BNX2_PCICFG_INT_ACK_CMD, BNX2_PCICFG_INT_ACK_CMD_MASK_INT);4888 4889 val = BNX2_DMA_CONFIG_DATA_BYTE_SWAP |4890 BNX2_DMA_CONFIG_DATA_WORD_SWAP |4891#ifdef __BIG_ENDIAN4892 BNX2_DMA_CONFIG_CNTL_BYTE_SWAP |4893#endif4894 BNX2_DMA_CONFIG_CNTL_WORD_SWAP |4895 DMA_READ_CHANS << 12 |4896 DMA_WRITE_CHANS << 16;4897 4898 val |= (0x2 << 20) | (1 << 11);4899 4900 if ((bp->flags & BNX2_FLAG_PCIX) && (bp->bus_speed_mhz == 133))4901 val |= (1 << 23);4902 4903 if ((BNX2_CHIP(bp) == BNX2_CHIP_5706) &&4904 (BNX2_CHIP_ID(bp) != BNX2_CHIP_ID_5706_A0) &&4905 !(bp->flags & BNX2_FLAG_PCIX))4906 val |= BNX2_DMA_CONFIG_CNTL_PING_PONG_DMA;4907 4908 BNX2_WR(bp, BNX2_DMA_CONFIG, val);4909 4910 if (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A0) {4911 val = BNX2_RD(bp, BNX2_TDMA_CONFIG);4912 val |= BNX2_TDMA_CONFIG_ONE_DMA;4913 BNX2_WR(bp, BNX2_TDMA_CONFIG, val);4914 }4915 4916 if (bp->flags & BNX2_FLAG_PCIX) {4917 u16 val16;4918 4919 pci_read_config_word(bp->pdev, bp->pcix_cap + PCI_X_CMD,4920 &val16);4921 pci_write_config_word(bp->pdev, bp->pcix_cap + PCI_X_CMD,4922 val16 & ~PCI_X_CMD_ERO);4923 }4924 4925 BNX2_WR(bp, BNX2_MISC_ENABLE_SET_BITS,4926 BNX2_MISC_ENABLE_SET_BITS_HOST_COALESCE_ENABLE |4927 BNX2_MISC_ENABLE_STATUS_BITS_RX_V2P_ENABLE |4928 BNX2_MISC_ENABLE_STATUS_BITS_CONTEXT_ENABLE);4929 4930 /* Initialize context mapping and zero out the quick contexts. The4931 * context block must have already been enabled. */4932 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {4933 rc = bnx2_init_5709_context(bp);4934 if (rc)4935 return rc;4936 } else4937 bnx2_init_context(bp);4938 4939 bnx2_init_cpus(bp);4940 4941 bnx2_init_nvram(bp);4942 4943 bnx2_set_mac_addr(bp, bp->dev->dev_addr, 0);4944 4945 val = BNX2_RD(bp, BNX2_MQ_CONFIG);4946 val &= ~BNX2_MQ_CONFIG_KNL_BYP_BLK_SIZE;4947 val |= BNX2_MQ_CONFIG_KNL_BYP_BLK_SIZE_256;4948 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {4949 val |= BNX2_MQ_CONFIG_BIN_MQ_MODE;4950 if (BNX2_CHIP_REV(bp) == BNX2_CHIP_REV_Ax)4951 val |= BNX2_MQ_CONFIG_HALT_DIS;4952 }4953 4954 BNX2_WR(bp, BNX2_MQ_CONFIG, val);4955 4956 val = 0x10000 + (MAX_CID_CNT * MB_KERNEL_CTX_SIZE);4957 BNX2_WR(bp, BNX2_MQ_KNL_BYP_WIND_START, val);4958 BNX2_WR(bp, BNX2_MQ_KNL_WIND_END, val);4959 4960 val = (BNX2_PAGE_BITS - 8) << 24;4961 BNX2_WR(bp, BNX2_RV2P_CONFIG, val);4962 4963 /* Configure page size. */4964 val = BNX2_RD(bp, BNX2_TBDR_CONFIG);4965 val &= ~BNX2_TBDR_CONFIG_PAGE_SIZE;4966 val |= (BNX2_PAGE_BITS - 8) << 24 | 0x40;4967 BNX2_WR(bp, BNX2_TBDR_CONFIG, val);4968 4969 val = bp->mac_addr[0] +4970 (bp->mac_addr[1] << 8) +4971 (bp->mac_addr[2] << 16) +4972 bp->mac_addr[3] +4973 (bp->mac_addr[4] << 8) +4974 (bp->mac_addr[5] << 16);4975 BNX2_WR(bp, BNX2_EMAC_BACKOFF_SEED, val);4976 4977 /* Program the MTU. Also include 4 bytes for CRC32. */4978 mtu = bp->dev->mtu;4979 val = mtu + ETH_HLEN + ETH_FCS_LEN;4980 if (val > (MAX_ETHERNET_PACKET_SIZE + ETH_HLEN + 4))4981 val |= BNX2_EMAC_RX_MTU_SIZE_JUMBO_ENA;4982 BNX2_WR(bp, BNX2_EMAC_RX_MTU_SIZE, val);4983 4984 if (mtu < ETH_DATA_LEN)4985 mtu = ETH_DATA_LEN;4986 4987 bnx2_reg_wr_ind(bp, BNX2_RBUF_CONFIG, BNX2_RBUF_CONFIG_VAL(mtu));4988 bnx2_reg_wr_ind(bp, BNX2_RBUF_CONFIG2, BNX2_RBUF_CONFIG2_VAL(mtu));4989 bnx2_reg_wr_ind(bp, BNX2_RBUF_CONFIG3, BNX2_RBUF_CONFIG3_VAL(mtu));4990 4991 memset(bp->bnx2_napi[0].status_blk.msi, 0, bp->status_stats_size);4992 for (i = 0; i < BNX2_MAX_MSIX_VEC; i++)4993 bp->bnx2_napi[i].last_status_idx = 0;4994 4995 bp->idle_chk_status_idx = 0xffff;4996 4997 /* Set up how to generate a link change interrupt. */4998 BNX2_WR(bp, BNX2_EMAC_ATTENTION_ENA, BNX2_EMAC_ATTENTION_ENA_LINK);4999 5000 BNX2_WR(bp, BNX2_HC_STATUS_ADDR_L,5001 (u64) bp->status_blk_mapping & 0xffffffff);5002 BNX2_WR(bp, BNX2_HC_STATUS_ADDR_H, (u64) bp->status_blk_mapping >> 32);5003 5004 BNX2_WR(bp, BNX2_HC_STATISTICS_ADDR_L,5005 (u64) bp->stats_blk_mapping & 0xffffffff);5006 BNX2_WR(bp, BNX2_HC_STATISTICS_ADDR_H,5007 (u64) bp->stats_blk_mapping >> 32);5008 5009 BNX2_WR(bp, BNX2_HC_TX_QUICK_CONS_TRIP,5010 (bp->tx_quick_cons_trip_int << 16) | bp->tx_quick_cons_trip);5011 5012 BNX2_WR(bp, BNX2_HC_RX_QUICK_CONS_TRIP,5013 (bp->rx_quick_cons_trip_int << 16) | bp->rx_quick_cons_trip);5014 5015 BNX2_WR(bp, BNX2_HC_COMP_PROD_TRIP,5016 (bp->comp_prod_trip_int << 16) | bp->comp_prod_trip);5017 5018 BNX2_WR(bp, BNX2_HC_TX_TICKS, (bp->tx_ticks_int << 16) | bp->tx_ticks);5019 5020 BNX2_WR(bp, BNX2_HC_RX_TICKS, (bp->rx_ticks_int << 16) | bp->rx_ticks);5021 5022 BNX2_WR(bp, BNX2_HC_COM_TICKS,5023 (bp->com_ticks_int << 16) | bp->com_ticks);5024 5025 BNX2_WR(bp, BNX2_HC_CMD_TICKS,5026 (bp->cmd_ticks_int << 16) | bp->cmd_ticks);5027 5028 if (bp->flags & BNX2_FLAG_BROKEN_STATS)5029 BNX2_WR(bp, BNX2_HC_STATS_TICKS, 0);5030 else5031 BNX2_WR(bp, BNX2_HC_STATS_TICKS, bp->stats_ticks);5032 BNX2_WR(bp, BNX2_HC_STAT_COLLECT_TICKS, 0xbb8); /* 3ms */5033 5034 if (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A1)5035 val = BNX2_HC_CONFIG_COLLECT_STATS;5036 else {5037 val = BNX2_HC_CONFIG_RX_TMR_MODE | BNX2_HC_CONFIG_TX_TMR_MODE |5038 BNX2_HC_CONFIG_COLLECT_STATS;5039 }5040 5041 if (bp->flags & BNX2_FLAG_USING_MSIX) {5042 BNX2_WR(bp, BNX2_HC_MSIX_BIT_VECTOR,5043 BNX2_HC_MSIX_BIT_VECTOR_VAL);5044 5045 val |= BNX2_HC_CONFIG_SB_ADDR_INC_128B;5046 }5047 5048 if (bp->flags & BNX2_FLAG_ONE_SHOT_MSI)5049 val |= BNX2_HC_CONFIG_ONE_SHOT | BNX2_HC_CONFIG_USE_INT_PARAM;5050 5051 BNX2_WR(bp, BNX2_HC_CONFIG, val);5052 5053 if (bp->rx_ticks < 25)5054 bnx2_reg_wr_ind(bp, BNX2_FW_RX_LOW_LATENCY, 1);5055 else5056 bnx2_reg_wr_ind(bp, BNX2_FW_RX_LOW_LATENCY, 0);5057 5058 for (i = 1; i < bp->irq_nvecs; i++) {5059 u32 base = ((i - 1) * BNX2_HC_SB_CONFIG_SIZE) +5060 BNX2_HC_SB_CONFIG_1;5061 5062 BNX2_WR(bp, base,5063 BNX2_HC_SB_CONFIG_1_TX_TMR_MODE |5064 BNX2_HC_SB_CONFIG_1_RX_TMR_MODE |5065 BNX2_HC_SB_CONFIG_1_ONE_SHOT);5066 5067 BNX2_WR(bp, base + BNX2_HC_TX_QUICK_CONS_TRIP_OFF,5068 (bp->tx_quick_cons_trip_int << 16) |5069 bp->tx_quick_cons_trip);5070 5071 BNX2_WR(bp, base + BNX2_HC_TX_TICKS_OFF,5072 (bp->tx_ticks_int << 16) | bp->tx_ticks);5073 5074 BNX2_WR(bp, base + BNX2_HC_RX_QUICK_CONS_TRIP_OFF,5075 (bp->rx_quick_cons_trip_int << 16) |5076 bp->rx_quick_cons_trip);5077 5078 BNX2_WR(bp, base + BNX2_HC_RX_TICKS_OFF,5079 (bp->rx_ticks_int << 16) | bp->rx_ticks);5080 }5081 5082 /* Clear internal stats counters. */5083 BNX2_WR(bp, BNX2_HC_COMMAND, BNX2_HC_COMMAND_CLR_STAT_NOW);5084 5085 BNX2_WR(bp, BNX2_HC_ATTN_BITS_ENABLE, STATUS_ATTN_EVENTS);5086 5087 /* Initialize the receive filter. */5088 bnx2_set_rx_mode(bp->dev);5089 5090 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {5091 val = BNX2_RD(bp, BNX2_MISC_NEW_CORE_CTL);5092 val |= BNX2_MISC_NEW_CORE_CTL_DMA_ENABLE;5093 BNX2_WR(bp, BNX2_MISC_NEW_CORE_CTL, val);5094 }5095 rc = bnx2_fw_sync(bp, BNX2_DRV_MSG_DATA_WAIT2 | BNX2_DRV_MSG_CODE_RESET,5096 1, 0);5097 5098 BNX2_WR(bp, BNX2_MISC_ENABLE_SET_BITS, BNX2_MISC_ENABLE_DEFAULT);5099 BNX2_RD(bp, BNX2_MISC_ENABLE_SET_BITS);5100 5101 udelay(20);5102 5103 bp->hc_cmd = BNX2_RD(bp, BNX2_HC_COMMAND);5104 5105 return rc;5106}5107 5108static void5109bnx2_clear_ring_states(struct bnx2 *bp)5110{5111 struct bnx2_napi *bnapi;5112 struct bnx2_tx_ring_info *txr;5113 struct bnx2_rx_ring_info *rxr;5114 int i;5115 5116 for (i = 0; i < BNX2_MAX_MSIX_VEC; i++) {5117 bnapi = &bp->bnx2_napi[i];5118 txr = &bnapi->tx_ring;5119 rxr = &bnapi->rx_ring;5120 5121 txr->tx_cons = 0;5122 txr->hw_tx_cons = 0;5123 rxr->rx_prod_bseq = 0;5124 rxr->rx_prod = 0;5125 rxr->rx_cons = 0;5126 rxr->rx_pg_prod = 0;5127 rxr->rx_pg_cons = 0;5128 }5129}5130 5131static void5132bnx2_init_tx_context(struct bnx2 *bp, u32 cid, struct bnx2_tx_ring_info *txr)5133{5134 u32 val, offset0, offset1, offset2, offset3;5135 u32 cid_addr = GET_CID_ADDR(cid);5136 5137 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {5138 offset0 = BNX2_L2CTX_TYPE_XI;5139 offset1 = BNX2_L2CTX_CMD_TYPE_XI;5140 offset2 = BNX2_L2CTX_TBDR_BHADDR_HI_XI;5141 offset3 = BNX2_L2CTX_TBDR_BHADDR_LO_XI;5142 } else {5143 offset0 = BNX2_L2CTX_TYPE;5144 offset1 = BNX2_L2CTX_CMD_TYPE;5145 offset2 = BNX2_L2CTX_TBDR_BHADDR_HI;5146 offset3 = BNX2_L2CTX_TBDR_BHADDR_LO;5147 }5148 val = BNX2_L2CTX_TYPE_TYPE_L2 | BNX2_L2CTX_TYPE_SIZE_L2;5149 bnx2_ctx_wr(bp, cid_addr, offset0, val);5150 5151 val = BNX2_L2CTX_CMD_TYPE_TYPE_L2 | (8 << 16);5152 bnx2_ctx_wr(bp, cid_addr, offset1, val);5153 5154 val = (u64) txr->tx_desc_mapping >> 32;5155 bnx2_ctx_wr(bp, cid_addr, offset2, val);5156 5157 val = (u64) txr->tx_desc_mapping & 0xffffffff;5158 bnx2_ctx_wr(bp, cid_addr, offset3, val);5159}5160 5161static void5162bnx2_init_tx_ring(struct bnx2 *bp, int ring_num)5163{5164 struct bnx2_tx_bd *txbd;5165 u32 cid = TX_CID;5166 struct bnx2_napi *bnapi;5167 struct bnx2_tx_ring_info *txr;5168 5169 bnapi = &bp->bnx2_napi[ring_num];5170 txr = &bnapi->tx_ring;5171 5172 if (ring_num == 0)5173 cid = TX_CID;5174 else5175 cid = TX_TSS_CID + ring_num - 1;5176 5177 bp->tx_wake_thresh = bp->tx_ring_size / 2;5178 5179 txbd = &txr->tx_desc_ring[BNX2_MAX_TX_DESC_CNT];5180 5181 txbd->tx_bd_haddr_hi = (u64) txr->tx_desc_mapping >> 32;5182 txbd->tx_bd_haddr_lo = (u64) txr->tx_desc_mapping & 0xffffffff;5183 5184 txr->tx_prod = 0;5185 txr->tx_prod_bseq = 0;5186 5187 txr->tx_bidx_addr = MB_GET_CID_ADDR(cid) + BNX2_L2CTX_TX_HOST_BIDX;5188 txr->tx_bseq_addr = MB_GET_CID_ADDR(cid) + BNX2_L2CTX_TX_HOST_BSEQ;5189 5190 bnx2_init_tx_context(bp, cid, txr);5191}5192 5193static void5194bnx2_init_rxbd_rings(struct bnx2_rx_bd *rx_ring[], dma_addr_t dma[],5195 u32 buf_size, int num_rings)5196{5197 int i;5198 struct bnx2_rx_bd *rxbd;5199 5200 for (i = 0; i < num_rings; i++) {5201 int j;5202 5203 rxbd = &rx_ring[i][0];5204 for (j = 0; j < BNX2_MAX_RX_DESC_CNT; j++, rxbd++) {5205 rxbd->rx_bd_len = buf_size;5206 rxbd->rx_bd_flags = RX_BD_FLAGS_START | RX_BD_FLAGS_END;5207 }5208 if (i == (num_rings - 1))5209 j = 0;5210 else5211 j = i + 1;5212 rxbd->rx_bd_haddr_hi = (u64) dma[j] >> 32;5213 rxbd->rx_bd_haddr_lo = (u64) dma[j] & 0xffffffff;5214 }5215}5216 5217static void5218bnx2_init_rx_ring(struct bnx2 *bp, int ring_num)5219{5220 int i;5221 u16 prod, ring_prod;5222 u32 cid, rx_cid_addr, val;5223 struct bnx2_napi *bnapi = &bp->bnx2_napi[ring_num];5224 struct bnx2_rx_ring_info *rxr = &bnapi->rx_ring;5225 5226 if (ring_num == 0)5227 cid = RX_CID;5228 else5229 cid = RX_RSS_CID + ring_num - 1;5230 5231 rx_cid_addr = GET_CID_ADDR(cid);5232 5233 bnx2_init_rxbd_rings(rxr->rx_desc_ring, rxr->rx_desc_mapping,5234 bp->rx_buf_use_size, bp->rx_max_ring);5235 5236 bnx2_init_rx_context(bp, cid);5237 5238 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {5239 val = BNX2_RD(bp, BNX2_MQ_MAP_L2_5);5240 BNX2_WR(bp, BNX2_MQ_MAP_L2_5, val | BNX2_MQ_MAP_L2_5_ARM);5241 }5242 5243 bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_PG_BUF_SIZE, 0);5244 if (bp->rx_pg_ring_size) {5245 bnx2_init_rxbd_rings(rxr->rx_pg_desc_ring,5246 rxr->rx_pg_desc_mapping,5247 PAGE_SIZE, bp->rx_max_pg_ring);5248 val = (bp->rx_buf_use_size << 16) | PAGE_SIZE;5249 bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_PG_BUF_SIZE, val);5250 bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_RBDC_KEY,5251 BNX2_L2CTX_RBDC_JUMBO_KEY - ring_num);5252 5253 val = (u64) rxr->rx_pg_desc_mapping[0] >> 32;5254 bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_NX_PG_BDHADDR_HI, val);5255 5256 val = (u64) rxr->rx_pg_desc_mapping[0] & 0xffffffff;5257 bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_NX_PG_BDHADDR_LO, val);5258 5259 if (BNX2_CHIP(bp) == BNX2_CHIP_5709)5260 BNX2_WR(bp, BNX2_MQ_MAP_L2_3, BNX2_MQ_MAP_L2_3_DEFAULT);5261 }5262 5263 val = (u64) rxr->rx_desc_mapping[0] >> 32;5264 bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_NX_BDHADDR_HI, val);5265 5266 val = (u64) rxr->rx_desc_mapping[0] & 0xffffffff;5267 bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_NX_BDHADDR_LO, val);5268 5269 ring_prod = prod = rxr->rx_pg_prod;5270 for (i = 0; i < bp->rx_pg_ring_size; i++) {5271 if (bnx2_alloc_rx_page(bp, rxr, ring_prod, GFP_KERNEL) < 0) {5272 netdev_warn(bp->dev, "init'ed rx page ring %d with %d/%d pages only\n",5273 ring_num, i, bp->rx_pg_ring_size);5274 break;5275 }5276 prod = BNX2_NEXT_RX_BD(prod);5277 ring_prod = BNX2_RX_PG_RING_IDX(prod);5278 }5279 rxr->rx_pg_prod = prod;5280 5281 ring_prod = prod = rxr->rx_prod;5282 for (i = 0; i < bp->rx_ring_size; i++) {5283 if (bnx2_alloc_rx_data(bp, rxr, ring_prod, GFP_KERNEL) < 0) {5284 netdev_warn(bp->dev, "init'ed rx ring %d with %d/%d skbs only\n",5285 ring_num, i, bp->rx_ring_size);5286 break;5287 }5288 prod = BNX2_NEXT_RX_BD(prod);5289 ring_prod = BNX2_RX_RING_IDX(prod);5290 }5291 rxr->rx_prod = prod;5292 5293 rxr->rx_bidx_addr = MB_GET_CID_ADDR(cid) + BNX2_L2CTX_HOST_BDIDX;5294 rxr->rx_bseq_addr = MB_GET_CID_ADDR(cid) + BNX2_L2CTX_HOST_BSEQ;5295 rxr->rx_pg_bidx_addr = MB_GET_CID_ADDR(cid) + BNX2_L2CTX_HOST_PG_BDIDX;5296 5297 BNX2_WR16(bp, rxr->rx_pg_bidx_addr, rxr->rx_pg_prod);5298 BNX2_WR16(bp, rxr->rx_bidx_addr, prod);5299 5300 BNX2_WR(bp, rxr->rx_bseq_addr, rxr->rx_prod_bseq);5301}5302 5303static void5304bnx2_init_all_rings(struct bnx2 *bp)5305{5306 int i;5307 u32 val;5308 5309 bnx2_clear_ring_states(bp);5310 5311 BNX2_WR(bp, BNX2_TSCH_TSS_CFG, 0);5312 for (i = 0; i < bp->num_tx_rings; i++)5313 bnx2_init_tx_ring(bp, i);5314 5315 if (bp->num_tx_rings > 1)5316 BNX2_WR(bp, BNX2_TSCH_TSS_CFG, ((bp->num_tx_rings - 1) << 24) |5317 (TX_TSS_CID << 7));5318 5319 BNX2_WR(bp, BNX2_RLUP_RSS_CONFIG, 0);5320 bnx2_reg_wr_ind(bp, BNX2_RXP_SCRATCH_RSS_TBL_SZ, 0);5321 5322 for (i = 0; i < bp->num_rx_rings; i++)5323 bnx2_init_rx_ring(bp, i);5324 5325 if (bp->num_rx_rings > 1) {5326 u32 tbl_32 = 0;5327 5328 for (i = 0; i < BNX2_RXP_SCRATCH_RSS_TBL_MAX_ENTRIES; i++) {5329 int shift = (i % 8) << 2;5330 5331 tbl_32 |= (i % (bp->num_rx_rings - 1)) << shift;5332 if ((i % 8) == 7) {5333 BNX2_WR(bp, BNX2_RLUP_RSS_DATA, tbl_32);5334 BNX2_WR(bp, BNX2_RLUP_RSS_COMMAND, (i >> 3) |5335 BNX2_RLUP_RSS_COMMAND_RSS_WRITE_MASK |5336 BNX2_RLUP_RSS_COMMAND_WRITE |5337 BNX2_RLUP_RSS_COMMAND_HASH_MASK);5338 tbl_32 = 0;5339 }5340 }5341 5342 val = BNX2_RLUP_RSS_CONFIG_IPV4_RSS_TYPE_ALL_XI |5343 BNX2_RLUP_RSS_CONFIG_IPV6_RSS_TYPE_ALL_XI;5344 5345 BNX2_WR(bp, BNX2_RLUP_RSS_CONFIG, val);5346 5347 }5348}5349 5350static u32 bnx2_find_max_ring(u32 ring_size, u32 max_size)5351{5352 u32 max, num_rings = 1;5353 5354 while (ring_size > BNX2_MAX_RX_DESC_CNT) {5355 ring_size -= BNX2_MAX_RX_DESC_CNT;5356 num_rings++;5357 }5358 /* round to next power of 2 */5359 max = max_size;5360 while ((max & num_rings) == 0)5361 max >>= 1;5362 5363 if (num_rings != max)5364 max <<= 1;5365 5366 return max;5367}5368 5369static void5370bnx2_set_rx_ring_size(struct bnx2 *bp, u32 size)5371{5372 u32 rx_size, rx_space, jumbo_size;5373 5374 /* 8 for CRC and VLAN */5375 rx_size = bp->dev->mtu + ETH_HLEN + BNX2_RX_OFFSET + 8;5376 5377 rx_space = SKB_DATA_ALIGN(rx_size + BNX2_RX_ALIGN) + NET_SKB_PAD +5378 SKB_DATA_ALIGN(sizeof(struct skb_shared_info));5379 5380 bp->rx_copy_thresh = BNX2_RX_COPY_THRESH;5381 bp->rx_pg_ring_size = 0;5382 bp->rx_max_pg_ring = 0;5383 bp->rx_max_pg_ring_idx = 0;5384 if ((rx_space > PAGE_SIZE) && !(bp->flags & BNX2_FLAG_JUMBO_BROKEN)) {5385 int pages = PAGE_ALIGN(bp->dev->mtu - 40) >> PAGE_SHIFT;5386 5387 jumbo_size = size * pages;5388 if (jumbo_size > BNX2_MAX_TOTAL_RX_PG_DESC_CNT)5389 jumbo_size = BNX2_MAX_TOTAL_RX_PG_DESC_CNT;5390 5391 bp->rx_pg_ring_size = jumbo_size;5392 bp->rx_max_pg_ring = bnx2_find_max_ring(jumbo_size,5393 BNX2_MAX_RX_PG_RINGS);5394 bp->rx_max_pg_ring_idx =5395 (bp->rx_max_pg_ring * BNX2_RX_DESC_CNT) - 1;5396 rx_size = BNX2_RX_COPY_THRESH + BNX2_RX_OFFSET;5397 bp->rx_copy_thresh = 0;5398 }5399 5400 bp->rx_buf_use_size = rx_size;5401 /* hw alignment + build_skb() overhead*/5402 bp->rx_buf_size = kmalloc_size_roundup(5403 SKB_DATA_ALIGN(bp->rx_buf_use_size + BNX2_RX_ALIGN) +5404 NET_SKB_PAD + SKB_DATA_ALIGN(sizeof(struct skb_shared_info)));5405 bp->rx_jumbo_thresh = rx_size - BNX2_RX_OFFSET;5406 bp->rx_ring_size = size;5407 bp->rx_max_ring = bnx2_find_max_ring(size, BNX2_MAX_RX_RINGS);5408 bp->rx_max_ring_idx = (bp->rx_max_ring * BNX2_RX_DESC_CNT) - 1;5409}5410 5411static void5412bnx2_free_tx_skbs(struct bnx2 *bp)5413{5414 int i;5415 5416 for (i = 0; i < bp->num_tx_rings; i++) {5417 struct bnx2_napi *bnapi = &bp->bnx2_napi[i];5418 struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;5419 int j;5420 5421 if (!txr->tx_buf_ring)5422 continue;5423 5424 for (j = 0; j < BNX2_TX_DESC_CNT; ) {5425 struct bnx2_sw_tx_bd *tx_buf = &txr->tx_buf_ring[j];5426 struct sk_buff *skb = tx_buf->skb;5427 int k, last;5428 5429 if (!skb) {5430 j = BNX2_NEXT_TX_BD(j);5431 continue;5432 }5433 5434 dma_unmap_single(&bp->pdev->dev,5435 dma_unmap_addr(tx_buf, mapping),5436 skb_headlen(skb),5437 DMA_TO_DEVICE);5438 5439 tx_buf->skb = NULL;5440 5441 last = tx_buf->nr_frags;5442 j = BNX2_NEXT_TX_BD(j);5443 for (k = 0; k < last; k++, j = BNX2_NEXT_TX_BD(j)) {5444 tx_buf = &txr->tx_buf_ring[BNX2_TX_RING_IDX(j)];5445 dma_unmap_page(&bp->pdev->dev,5446 dma_unmap_addr(tx_buf, mapping),5447 skb_frag_size(&skb_shinfo(skb)->frags[k]),5448 DMA_TO_DEVICE);5449 }5450 dev_kfree_skb(skb);5451 }5452 netdev_tx_reset_queue(netdev_get_tx_queue(bp->dev, i));5453 }5454}5455 5456static void5457bnx2_free_rx_skbs(struct bnx2 *bp)5458{5459 int i;5460 5461 for (i = 0; i < bp->num_rx_rings; i++) {5462 struct bnx2_napi *bnapi = &bp->bnx2_napi[i];5463 struct bnx2_rx_ring_info *rxr = &bnapi->rx_ring;5464 int j;5465 5466 if (!rxr->rx_buf_ring)5467 return;5468 5469 for (j = 0; j < bp->rx_max_ring_idx; j++) {5470 struct bnx2_sw_bd *rx_buf = &rxr->rx_buf_ring[j];5471 u8 *data = rx_buf->data;5472 5473 if (!data)5474 continue;5475 5476 dma_unmap_single(&bp->pdev->dev,5477 dma_unmap_addr(rx_buf, mapping),5478 bp->rx_buf_use_size,5479 DMA_FROM_DEVICE);5480 5481 rx_buf->data = NULL;5482 5483 kfree(data);5484 }5485 for (j = 0; j < bp->rx_max_pg_ring_idx; j++)5486 bnx2_free_rx_page(bp, rxr, j);5487 }5488}5489 5490static void5491bnx2_free_skbs(struct bnx2 *bp)5492{5493 bnx2_free_tx_skbs(bp);5494 bnx2_free_rx_skbs(bp);5495}5496 5497static int5498bnx2_reset_nic(struct bnx2 *bp, u32 reset_code)5499{5500 int rc;5501 5502 rc = bnx2_reset_chip(bp, reset_code);5503 bnx2_free_skbs(bp);5504 if (rc)5505 return rc;5506 5507 if ((rc = bnx2_init_chip(bp)) != 0)5508 return rc;5509 5510 bnx2_init_all_rings(bp);5511 return 0;5512}5513 5514static int5515bnx2_init_nic(struct bnx2 *bp, int reset_phy)5516{5517 int rc;5518 5519 if ((rc = bnx2_reset_nic(bp, BNX2_DRV_MSG_CODE_RESET)) != 0)5520 return rc;5521 5522 spin_lock_bh(&bp->phy_lock);5523 bnx2_init_phy(bp, reset_phy);5524 bnx2_set_link(bp);5525 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)5526 bnx2_remote_phy_event(bp);5527 spin_unlock_bh(&bp->phy_lock);5528 return 0;5529}5530 5531static int5532bnx2_shutdown_chip(struct bnx2 *bp)5533{5534 u32 reset_code;5535 5536 if (bp->flags & BNX2_FLAG_NO_WOL)5537 reset_code = BNX2_DRV_MSG_CODE_UNLOAD_LNK_DN;5538 else if (bp->wol)5539 reset_code = BNX2_DRV_MSG_CODE_SUSPEND_WOL;5540 else5541 reset_code = BNX2_DRV_MSG_CODE_SUSPEND_NO_WOL;5542 5543 return bnx2_reset_chip(bp, reset_code);5544}5545 5546static int5547bnx2_test_registers(struct bnx2 *bp)5548{5549 int ret;5550 int i, is_5709;5551 static const struct {5552 u16 offset;5553 u16 flags;5554#define BNX2_FL_NOT_5709 15555 u32 rw_mask;5556 u32 ro_mask;5557 } reg_tbl[] = {5558 { 0x006c, 0, 0x00000000, 0x0000003f },5559 { 0x0090, 0, 0xffffffff, 0x00000000 },5560 { 0x0094, 0, 0x00000000, 0x00000000 },5561 5562 { 0x0404, BNX2_FL_NOT_5709, 0x00003f00, 0x00000000 },5563 { 0x0418, BNX2_FL_NOT_5709, 0x00000000, 0xffffffff },5564 { 0x041c, BNX2_FL_NOT_5709, 0x00000000, 0xffffffff },5565 { 0x0420, BNX2_FL_NOT_5709, 0x00000000, 0x80ffffff },5566 { 0x0424, BNX2_FL_NOT_5709, 0x00000000, 0x00000000 },5567 { 0x0428, BNX2_FL_NOT_5709, 0x00000000, 0x00000001 },5568 { 0x0450, BNX2_FL_NOT_5709, 0x00000000, 0x0000ffff },5569 { 0x0454, BNX2_FL_NOT_5709, 0x00000000, 0xffffffff },5570 { 0x0458, BNX2_FL_NOT_5709, 0x00000000, 0xffffffff },5571 5572 { 0x0808, BNX2_FL_NOT_5709, 0x00000000, 0xffffffff },5573 { 0x0854, BNX2_FL_NOT_5709, 0x00000000, 0xffffffff },5574 { 0x0868, BNX2_FL_NOT_5709, 0x00000000, 0x77777777 },5575 { 0x086c, BNX2_FL_NOT_5709, 0x00000000, 0x77777777 },5576 { 0x0870, BNX2_FL_NOT_5709, 0x00000000, 0x77777777 },5577 { 0x0874, BNX2_FL_NOT_5709, 0x00000000, 0x77777777 },5578 5579 { 0x0c00, BNX2_FL_NOT_5709, 0x00000000, 0x00000001 },5580 { 0x0c04, BNX2_FL_NOT_5709, 0x00000000, 0x03ff0001 },5581 { 0x0c08, BNX2_FL_NOT_5709, 0x0f0ff073, 0x00000000 },5582 5583 { 0x1000, 0, 0x00000000, 0x00000001 },5584 { 0x1004, BNX2_FL_NOT_5709, 0x00000000, 0x000f0001 },5585 5586 { 0x1408, 0, 0x01c00800, 0x00000000 },5587 { 0x149c, 0, 0x8000ffff, 0x00000000 },5588 { 0x14a8, 0, 0x00000000, 0x000001ff },5589 { 0x14ac, 0, 0x0fffffff, 0x10000000 },5590 { 0x14b0, 0, 0x00000002, 0x00000001 },5591 { 0x14b8, 0, 0x00000000, 0x00000000 },5592 { 0x14c0, 0, 0x00000000, 0x00000009 },5593 { 0x14c4, 0, 0x00003fff, 0x00000000 },5594 { 0x14cc, 0, 0x00000000, 0x00000001 },5595 { 0x14d0, 0, 0xffffffff, 0x00000000 },5596 5597 { 0x1800, 0, 0x00000000, 0x00000001 },5598 { 0x1804, 0, 0x00000000, 0x00000003 },5599 5600 { 0x2800, 0, 0x00000000, 0x00000001 },5601 { 0x2804, 0, 0x00000000, 0x00003f01 },5602 { 0x2808, 0, 0x0f3f3f03, 0x00000000 },5603 { 0x2810, 0, 0xffff0000, 0x00000000 },5604 { 0x2814, 0, 0xffff0000, 0x00000000 },5605 { 0x2818, 0, 0xffff0000, 0x00000000 },5606 { 0x281c, 0, 0xffff0000, 0x00000000 },5607 { 0x2834, 0, 0xffffffff, 0x00000000 },5608 { 0x2840, 0, 0x00000000, 0xffffffff },5609 { 0x2844, 0, 0x00000000, 0xffffffff },5610 { 0x2848, 0, 0xffffffff, 0x00000000 },5611 { 0x284c, 0, 0xf800f800, 0x07ff07ff },5612 5613 { 0x2c00, 0, 0x00000000, 0x00000011 },5614 { 0x2c04, 0, 0x00000000, 0x00030007 },5615 5616 { 0x3c00, 0, 0x00000000, 0x00000001 },5617 { 0x3c04, 0, 0x00000000, 0x00070000 },5618 { 0x3c08, 0, 0x00007f71, 0x07f00000 },5619 { 0x3c0c, 0, 0x1f3ffffc, 0x00000000 },5620 { 0x3c10, 0, 0xffffffff, 0x00000000 },5621 { 0x3c14, 0, 0x00000000, 0xffffffff },5622 { 0x3c18, 0, 0x00000000, 0xffffffff },5623 { 0x3c1c, 0, 0xfffff000, 0x00000000 },5624 { 0x3c20, 0, 0xffffff00, 0x00000000 },5625 5626 { 0x5004, 0, 0x00000000, 0x0000007f },5627 { 0x5008, 0, 0x0f0007ff, 0x00000000 },5628 5629 { 0x5c00, 0, 0x00000000, 0x00000001 },5630 { 0x5c04, 0, 0x00000000, 0x0003000f },5631 { 0x5c08, 0, 0x00000003, 0x00000000 },5632 { 0x5c0c, 0, 0x0000fff8, 0x00000000 },5633 { 0x5c10, 0, 0x00000000, 0xffffffff },5634 { 0x5c80, 0, 0x00000000, 0x0f7113f1 },5635 { 0x5c84, 0, 0x00000000, 0x0000f333 },5636 { 0x5c88, 0, 0x00000000, 0x00077373 },5637 { 0x5c8c, 0, 0x00000000, 0x0007f737 },5638 5639 { 0x6808, 0, 0x0000ff7f, 0x00000000 },5640 { 0x680c, 0, 0xffffffff, 0x00000000 },5641 { 0x6810, 0, 0xffffffff, 0x00000000 },5642 { 0x6814, 0, 0xffffffff, 0x00000000 },5643 { 0x6818, 0, 0xffffffff, 0x00000000 },5644 { 0x681c, 0, 0xffffffff, 0x00000000 },5645 { 0x6820, 0, 0x00ff00ff, 0x00000000 },5646 { 0x6824, 0, 0x00ff00ff, 0x00000000 },5647 { 0x6828, 0, 0x00ff00ff, 0x00000000 },5648 { 0x682c, 0, 0x03ff03ff, 0x00000000 },5649 { 0x6830, 0, 0x03ff03ff, 0x00000000 },5650 { 0x6834, 0, 0x03ff03ff, 0x00000000 },5651 { 0x6838, 0, 0x03ff03ff, 0x00000000 },5652 { 0x683c, 0, 0x0000ffff, 0x00000000 },5653 { 0x6840, 0, 0x00000ff0, 0x00000000 },5654 { 0x6844, 0, 0x00ffff00, 0x00000000 },5655 { 0x684c, 0, 0xffffffff, 0x00000000 },5656 { 0x6850, 0, 0x7f7f7f7f, 0x00000000 },5657 { 0x6854, 0, 0x7f7f7f7f, 0x00000000 },5658 { 0x6858, 0, 0x7f7f7f7f, 0x00000000 },5659 { 0x685c, 0, 0x7f7f7f7f, 0x00000000 },5660 { 0x6908, 0, 0x00000000, 0x0001ff0f },5661 { 0x690c, 0, 0x00000000, 0x0ffe00f0 },5662 5663 { 0xffff, 0, 0x00000000, 0x00000000 },5664 };5665 5666 ret = 0;5667 is_5709 = 0;5668 if (BNX2_CHIP(bp) == BNX2_CHIP_5709)5669 is_5709 = 1;5670 5671 for (i = 0; reg_tbl[i].offset != 0xffff; i++) {5672 u32 offset, rw_mask, ro_mask, save_val, val;5673 u16 flags = reg_tbl[i].flags;5674 5675 if (is_5709 && (flags & BNX2_FL_NOT_5709))5676 continue;5677 5678 offset = (u32) reg_tbl[i].offset;5679 rw_mask = reg_tbl[i].rw_mask;5680 ro_mask = reg_tbl[i].ro_mask;5681 5682 save_val = readl(bp->regview + offset);5683 5684 writel(0, bp->regview + offset);5685 5686 val = readl(bp->regview + offset);5687 if ((val & rw_mask) != 0) {5688 goto reg_test_err;5689 }5690 5691 if ((val & ro_mask) != (save_val & ro_mask)) {5692 goto reg_test_err;5693 }5694 5695 writel(0xffffffff, bp->regview + offset);5696 5697 val = readl(bp->regview + offset);5698 if ((val & rw_mask) != rw_mask) {5699 goto reg_test_err;5700 }5701 5702 if ((val & ro_mask) != (save_val & ro_mask)) {5703 goto reg_test_err;5704 }5705 5706 writel(save_val, bp->regview + offset);5707 continue;5708 5709reg_test_err:5710 writel(save_val, bp->regview + offset);5711 ret = -ENODEV;5712 break;5713 }5714 return ret;5715}5716 5717static int5718bnx2_do_mem_test(struct bnx2 *bp, u32 start, u32 size)5719{5720 static const u32 test_pattern[] = { 0x00000000, 0xffffffff, 0x55555555,5721 0xaaaaaaaa , 0xaa55aa55, 0x55aa55aa };5722 int i;5723 5724 for (i = 0; i < sizeof(test_pattern) / 4; i++) {5725 u32 offset;5726 5727 for (offset = 0; offset < size; offset += 4) {5728 5729 bnx2_reg_wr_ind(bp, start + offset, test_pattern[i]);5730 5731 if (bnx2_reg_rd_ind(bp, start + offset) !=5732 test_pattern[i]) {5733 return -ENODEV;5734 }5735 }5736 }5737 return 0;5738}5739 5740static int5741bnx2_test_memory(struct bnx2 *bp)5742{5743 int ret = 0;5744 int i;5745 static struct mem_entry {5746 u32 offset;5747 u32 len;5748 } mem_tbl_5706[] = {5749 { 0x60000, 0x4000 },5750 { 0xa0000, 0x3000 },5751 { 0xe0000, 0x4000 },5752 { 0x120000, 0x4000 },5753 { 0x1a0000, 0x4000 },5754 { 0x160000, 0x4000 },5755 { 0xffffffff, 0 },5756 },5757 mem_tbl_5709[] = {5758 { 0x60000, 0x4000 },5759 { 0xa0000, 0x3000 },5760 { 0xe0000, 0x4000 },5761 { 0x120000, 0x4000 },5762 { 0x1a0000, 0x4000 },5763 { 0xffffffff, 0 },5764 };5765 struct mem_entry *mem_tbl;5766 5767 if (BNX2_CHIP(bp) == BNX2_CHIP_5709)5768 mem_tbl = mem_tbl_5709;5769 else5770 mem_tbl = mem_tbl_5706;5771 5772 for (i = 0; mem_tbl[i].offset != 0xffffffff; i++) {5773 if ((ret = bnx2_do_mem_test(bp, mem_tbl[i].offset,5774 mem_tbl[i].len)) != 0) {5775 return ret;5776 }5777 }5778 5779 return ret;5780}5781 5782#define BNX2_MAC_LOOPBACK 05783#define BNX2_PHY_LOOPBACK 15784 5785static int5786bnx2_run_loopback(struct bnx2 *bp, int loopback_mode)5787{5788 unsigned int pkt_size, num_pkts, i;5789 struct sk_buff *skb;5790 u8 *data;5791 unsigned char *packet;5792 u16 rx_start_idx, rx_idx;5793 dma_addr_t map;5794 struct bnx2_tx_bd *txbd;5795 struct bnx2_sw_bd *rx_buf;5796 struct l2_fhdr *rx_hdr;5797 int ret = -ENODEV;5798 struct bnx2_napi *bnapi = &bp->bnx2_napi[0], *tx_napi;5799 struct bnx2_tx_ring_info *txr;5800 struct bnx2_rx_ring_info *rxr;5801 5802 tx_napi = bnapi;5803 5804 txr = &tx_napi->tx_ring;5805 rxr = &bnapi->rx_ring;5806 if (loopback_mode == BNX2_MAC_LOOPBACK) {5807 bp->loopback = MAC_LOOPBACK;5808 bnx2_set_mac_loopback(bp);5809 }5810 else if (loopback_mode == BNX2_PHY_LOOPBACK) {5811 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)5812 return 0;5813 5814 bp->loopback = PHY_LOOPBACK;5815 bnx2_set_phy_loopback(bp);5816 }5817 else5818 return -EINVAL;5819 5820 pkt_size = min(bp->dev->mtu + ETH_HLEN, bp->rx_jumbo_thresh - 4);5821 skb = netdev_alloc_skb(bp->dev, pkt_size);5822 if (!skb)5823 return -ENOMEM;5824 packet = skb_put(skb, pkt_size);5825 memcpy(packet, bp->dev->dev_addr, ETH_ALEN);5826 memset(packet + ETH_ALEN, 0x0, 8);5827 for (i = 14; i < pkt_size; i++)5828 packet[i] = (unsigned char) (i & 0xff);5829 5830 map = dma_map_single(&bp->pdev->dev, skb->data, pkt_size,5831 DMA_TO_DEVICE);5832 if (dma_mapping_error(&bp->pdev->dev, map)) {5833 dev_kfree_skb(skb);5834 return -EIO;5835 }5836 5837 BNX2_WR(bp, BNX2_HC_COMMAND,5838 bp->hc_cmd | BNX2_HC_COMMAND_COAL_NOW_WO_INT);5839 5840 BNX2_RD(bp, BNX2_HC_COMMAND);5841 5842 udelay(5);5843 rx_start_idx = bnx2_get_hw_rx_cons(bnapi);5844 5845 num_pkts = 0;5846 5847 txbd = &txr->tx_desc_ring[BNX2_TX_RING_IDX(txr->tx_prod)];5848 5849 txbd->tx_bd_haddr_hi = (u64) map >> 32;5850 txbd->tx_bd_haddr_lo = (u64) map & 0xffffffff;5851 txbd->tx_bd_mss_nbytes = pkt_size;5852 txbd->tx_bd_vlan_tag_flags = TX_BD_FLAGS_START | TX_BD_FLAGS_END;5853 5854 num_pkts++;5855 txr->tx_prod = BNX2_NEXT_TX_BD(txr->tx_prod);5856 txr->tx_prod_bseq += pkt_size;5857 5858 BNX2_WR16(bp, txr->tx_bidx_addr, txr->tx_prod);5859 BNX2_WR(bp, txr->tx_bseq_addr, txr->tx_prod_bseq);5860 5861 udelay(100);5862 5863 BNX2_WR(bp, BNX2_HC_COMMAND,5864 bp->hc_cmd | BNX2_HC_COMMAND_COAL_NOW_WO_INT);5865 5866 BNX2_RD(bp, BNX2_HC_COMMAND);5867 5868 udelay(5);5869 5870 dma_unmap_single(&bp->pdev->dev, map, pkt_size, DMA_TO_DEVICE);5871 dev_kfree_skb(skb);5872 5873 if (bnx2_get_hw_tx_cons(tx_napi) != txr->tx_prod)5874 goto loopback_test_done;5875 5876 rx_idx = bnx2_get_hw_rx_cons(bnapi);5877 if (rx_idx != rx_start_idx + num_pkts) {5878 goto loopback_test_done;5879 }5880 5881 rx_buf = &rxr->rx_buf_ring[rx_start_idx];5882 data = rx_buf->data;5883 5884 rx_hdr = get_l2_fhdr(data);5885 data = (u8 *)rx_hdr + BNX2_RX_OFFSET;5886 5887 dma_sync_single_for_cpu(&bp->pdev->dev,5888 dma_unmap_addr(rx_buf, mapping),5889 bp->rx_buf_use_size, DMA_FROM_DEVICE);5890 5891 if (rx_hdr->l2_fhdr_status &5892 (L2_FHDR_ERRORS_BAD_CRC |5893 L2_FHDR_ERRORS_PHY_DECODE |5894 L2_FHDR_ERRORS_ALIGNMENT |5895 L2_FHDR_ERRORS_TOO_SHORT |5896 L2_FHDR_ERRORS_GIANT_FRAME)) {5897 5898 goto loopback_test_done;5899 }5900 5901 if ((rx_hdr->l2_fhdr_pkt_len - 4) != pkt_size) {5902 goto loopback_test_done;5903 }5904 5905 for (i = 14; i < pkt_size; i++) {5906 if (*(data + i) != (unsigned char) (i & 0xff)) {5907 goto loopback_test_done;5908 }5909 }5910 5911 ret = 0;5912 5913loopback_test_done:5914 bp->loopback = 0;5915 return ret;5916}5917 5918#define BNX2_MAC_LOOPBACK_FAILED 15919#define BNX2_PHY_LOOPBACK_FAILED 25920#define BNX2_LOOPBACK_FAILED (BNX2_MAC_LOOPBACK_FAILED | \5921 BNX2_PHY_LOOPBACK_FAILED)5922 5923static int5924bnx2_test_loopback(struct bnx2 *bp)5925{5926 int rc = 0;5927 5928 if (!netif_running(bp->dev))5929 return BNX2_LOOPBACK_FAILED;5930 5931 bnx2_reset_nic(bp, BNX2_DRV_MSG_CODE_RESET);5932 spin_lock_bh(&bp->phy_lock);5933 bnx2_init_phy(bp, 1);5934 spin_unlock_bh(&bp->phy_lock);5935 if (bnx2_run_loopback(bp, BNX2_MAC_LOOPBACK))5936 rc |= BNX2_MAC_LOOPBACK_FAILED;5937 if (bnx2_run_loopback(bp, BNX2_PHY_LOOPBACK))5938 rc |= BNX2_PHY_LOOPBACK_FAILED;5939 return rc;5940}5941 5942#define NVRAM_SIZE 0x2005943#define CRC32_RESIDUAL 0xdebb20e35944 5945static int5946bnx2_test_nvram(struct bnx2 *bp)5947{5948 __be32 buf[NVRAM_SIZE / 4];5949 u8 *data = (u8 *) buf;5950 int rc = 0;5951 u32 magic, csum;5952 5953 if ((rc = bnx2_nvram_read(bp, 0, data, 4)) != 0)5954 goto test_nvram_done;5955 5956 magic = be32_to_cpu(buf[0]);5957 if (magic != 0x669955aa) {5958 rc = -ENODEV;5959 goto test_nvram_done;5960 }5961 5962 if ((rc = bnx2_nvram_read(bp, 0x100, data, NVRAM_SIZE)) != 0)5963 goto test_nvram_done;5964 5965 csum = ether_crc_le(0x100, data);5966 if (csum != CRC32_RESIDUAL) {5967 rc = -ENODEV;5968 goto test_nvram_done;5969 }5970 5971 csum = ether_crc_le(0x100, data + 0x100);5972 if (csum != CRC32_RESIDUAL) {5973 rc = -ENODEV;5974 }5975 5976test_nvram_done:5977 return rc;5978}5979 5980static int5981bnx2_test_link(struct bnx2 *bp)5982{5983 u32 bmsr;5984 5985 if (!netif_running(bp->dev))5986 return -ENODEV;5987 5988 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP) {5989 if (bp->link_up)5990 return 0;5991 return -ENODEV;5992 }5993 spin_lock_bh(&bp->phy_lock);5994 bnx2_enable_bmsr1(bp);5995 bnx2_read_phy(bp, bp->mii_bmsr1, &bmsr);5996 bnx2_read_phy(bp, bp->mii_bmsr1, &bmsr);5997 bnx2_disable_bmsr1(bp);5998 spin_unlock_bh(&bp->phy_lock);5999 6000 if (bmsr & BMSR_LSTATUS) {6001 return 0;6002 }6003 return -ENODEV;6004}6005 6006static int6007bnx2_test_intr(struct bnx2 *bp)6008{6009 int i;6010 u16 status_idx;6011 6012 if (!netif_running(bp->dev))6013 return -ENODEV;6014 6015 status_idx = BNX2_RD(bp, BNX2_PCICFG_INT_ACK_CMD) & 0xffff;6016 6017 /* This register is not touched during run-time. */6018 BNX2_WR(bp, BNX2_HC_COMMAND, bp->hc_cmd | BNX2_HC_COMMAND_COAL_NOW);6019 BNX2_RD(bp, BNX2_HC_COMMAND);6020 6021 for (i = 0; i < 10; i++) {6022 if ((BNX2_RD(bp, BNX2_PCICFG_INT_ACK_CMD) & 0xffff) !=6023 status_idx) {6024 6025 break;6026 }6027 6028 msleep_interruptible(10);6029 }6030 if (i < 10)6031 return 0;6032 6033 return -ENODEV;6034}6035 6036/* Determining link for parallel detection. */6037static int6038bnx2_5706_serdes_has_link(struct bnx2 *bp)6039{6040 u32 mode_ctl, an_dbg, exp;6041 6042 if (bp->phy_flags & BNX2_PHY_FLAG_NO_PARALLEL)6043 return 0;6044 6045 bnx2_write_phy(bp, MII_BNX2_MISC_SHADOW, MISC_SHDW_MODE_CTL);6046 bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &mode_ctl);6047 6048 if (!(mode_ctl & MISC_SHDW_MODE_CTL_SIG_DET))6049 return 0;6050 6051 bnx2_write_phy(bp, MII_BNX2_MISC_SHADOW, MISC_SHDW_AN_DBG);6052 bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &an_dbg);6053 bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &an_dbg);6054 6055 if (an_dbg & (MISC_SHDW_AN_DBG_NOSYNC | MISC_SHDW_AN_DBG_RUDI_INVALID))6056 return 0;6057 6058 bnx2_write_phy(bp, MII_BNX2_DSP_ADDRESS, MII_EXPAND_REG1);6059 bnx2_read_phy(bp, MII_BNX2_DSP_RW_PORT, &exp);6060 bnx2_read_phy(bp, MII_BNX2_DSP_RW_PORT, &exp);6061 6062 if (exp & MII_EXPAND_REG1_RUDI_C) /* receiving CONFIG */6063 return 0;6064 6065 return 1;6066}6067 6068static void6069bnx2_5706_serdes_timer(struct bnx2 *bp)6070{6071 int check_link = 1;6072 6073 spin_lock(&bp->phy_lock);6074 if (bp->serdes_an_pending) {6075 bp->serdes_an_pending--;6076 check_link = 0;6077 } else if ((bp->link_up == 0) && (bp->autoneg & AUTONEG_SPEED)) {6078 u32 bmcr;6079 6080 bp->current_interval = BNX2_TIMER_INTERVAL;6081 6082 bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);6083 6084 if (bmcr & BMCR_ANENABLE) {6085 if (bnx2_5706_serdes_has_link(bp)) {6086 bmcr &= ~BMCR_ANENABLE;6087 bmcr |= BMCR_SPEED1000 | BMCR_FULLDPLX;6088 bnx2_write_phy(bp, bp->mii_bmcr, bmcr);6089 bp->phy_flags |= BNX2_PHY_FLAG_PARALLEL_DETECT;6090 }6091 }6092 }6093 else if ((bp->link_up) && (bp->autoneg & AUTONEG_SPEED) &&6094 (bp->phy_flags & BNX2_PHY_FLAG_PARALLEL_DETECT)) {6095 u32 phy2;6096 6097 bnx2_write_phy(bp, 0x17, 0x0f01);6098 bnx2_read_phy(bp, 0x15, &phy2);6099 if (phy2 & 0x20) {6100 u32 bmcr;6101 6102 bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);6103 bmcr |= BMCR_ANENABLE;6104 bnx2_write_phy(bp, bp->mii_bmcr, bmcr);6105 6106 bp->phy_flags &= ~BNX2_PHY_FLAG_PARALLEL_DETECT;6107 }6108 } else6109 bp->current_interval = BNX2_TIMER_INTERVAL;6110 6111 if (check_link) {6112 u32 val;6113 6114 bnx2_write_phy(bp, MII_BNX2_MISC_SHADOW, MISC_SHDW_AN_DBG);6115 bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &val);6116 bnx2_read_phy(bp, MII_BNX2_MISC_SHADOW, &val);6117 6118 if (bp->link_up && (val & MISC_SHDW_AN_DBG_NOSYNC)) {6119 if (!(bp->phy_flags & BNX2_PHY_FLAG_FORCED_DOWN)) {6120 bnx2_5706s_force_link_dn(bp, 1);6121 bp->phy_flags |= BNX2_PHY_FLAG_FORCED_DOWN;6122 } else6123 bnx2_set_link(bp);6124 } else if (!bp->link_up && !(val & MISC_SHDW_AN_DBG_NOSYNC))6125 bnx2_set_link(bp);6126 }6127 spin_unlock(&bp->phy_lock);6128}6129 6130static void6131bnx2_5708_serdes_timer(struct bnx2 *bp)6132{6133 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)6134 return;6135 6136 if ((bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE) == 0) {6137 bp->serdes_an_pending = 0;6138 return;6139 }6140 6141 spin_lock(&bp->phy_lock);6142 if (bp->serdes_an_pending)6143 bp->serdes_an_pending--;6144 else if ((bp->link_up == 0) && (bp->autoneg & AUTONEG_SPEED)) {6145 u32 bmcr;6146 6147 bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);6148 if (bmcr & BMCR_ANENABLE) {6149 bnx2_enable_forced_2g5(bp);6150 bp->current_interval = BNX2_SERDES_FORCED_TIMEOUT;6151 } else {6152 bnx2_disable_forced_2g5(bp);6153 bp->serdes_an_pending = 2;6154 bp->current_interval = BNX2_TIMER_INTERVAL;6155 }6156 6157 } else6158 bp->current_interval = BNX2_TIMER_INTERVAL;6159 6160 spin_unlock(&bp->phy_lock);6161}6162 6163static void6164bnx2_timer(struct timer_list *t)6165{6166 struct bnx2 *bp = from_timer(bp, t, timer);6167 6168 if (!netif_running(bp->dev))6169 return;6170 6171 if (atomic_read(&bp->intr_sem) != 0)6172 goto bnx2_restart_timer;6173 6174 if ((bp->flags & (BNX2_FLAG_USING_MSI | BNX2_FLAG_ONE_SHOT_MSI)) ==6175 BNX2_FLAG_USING_MSI)6176 bnx2_chk_missed_msi(bp);6177 6178 bnx2_send_heart_beat(bp);6179 6180 bp->stats_blk->stat_FwRxDrop =6181 bnx2_reg_rd_ind(bp, BNX2_FW_RX_DROP_COUNT);6182 6183 /* workaround occasional corrupted counters */6184 if ((bp->flags & BNX2_FLAG_BROKEN_STATS) && bp->stats_ticks)6185 BNX2_WR(bp, BNX2_HC_COMMAND, bp->hc_cmd |6186 BNX2_HC_COMMAND_STATS_NOW);6187 6188 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {6189 if (BNX2_CHIP(bp) == BNX2_CHIP_5706)6190 bnx2_5706_serdes_timer(bp);6191 else6192 bnx2_5708_serdes_timer(bp);6193 }6194 6195bnx2_restart_timer:6196 mod_timer(&bp->timer, jiffies + bp->current_interval);6197}6198 6199static int6200bnx2_request_irq(struct bnx2 *bp)6201{6202 unsigned long flags;6203 struct bnx2_irq *irq;6204 int rc = 0, i;6205 6206 if (bp->flags & BNX2_FLAG_USING_MSI_OR_MSIX)6207 flags = 0;6208 else6209 flags = IRQF_SHARED;6210 6211 for (i = 0; i < bp->irq_nvecs; i++) {6212 irq = &bp->irq_tbl[i];6213 rc = request_irq(irq->vector, irq->handler, flags, irq->name,6214 &bp->bnx2_napi[i]);6215 if (rc)6216 break;6217 irq->requested = 1;6218 }6219 return rc;6220}6221 6222static void6223__bnx2_free_irq(struct bnx2 *bp)6224{6225 struct bnx2_irq *irq;6226 int i;6227 6228 for (i = 0; i < bp->irq_nvecs; i++) {6229 irq = &bp->irq_tbl[i];6230 if (irq->requested)6231 free_irq(irq->vector, &bp->bnx2_napi[i]);6232 irq->requested = 0;6233 }6234}6235 6236static void6237bnx2_free_irq(struct bnx2 *bp)6238{6239 6240 __bnx2_free_irq(bp);6241 if (bp->flags & BNX2_FLAG_USING_MSI)6242 pci_disable_msi(bp->pdev);6243 else if (bp->flags & BNX2_FLAG_USING_MSIX)6244 pci_disable_msix(bp->pdev);6245 6246 bp->flags &= ~(BNX2_FLAG_USING_MSI_OR_MSIX | BNX2_FLAG_ONE_SHOT_MSI);6247}6248 6249static void6250bnx2_enable_msix(struct bnx2 *bp, int msix_vecs)6251{6252 int i, total_vecs;6253 struct msix_entry msix_ent[BNX2_MAX_MSIX_VEC];6254 struct net_device *dev = bp->dev;6255 const int len = sizeof(bp->irq_tbl[0].name);6256 6257 bnx2_setup_msix_tbl(bp);6258 BNX2_WR(bp, BNX2_PCI_MSIX_CONTROL, BNX2_MAX_MSIX_HW_VEC - 1);6259 BNX2_WR(bp, BNX2_PCI_MSIX_TBL_OFF_BIR, BNX2_PCI_GRC_WINDOW2_BASE);6260 BNX2_WR(bp, BNX2_PCI_MSIX_PBA_OFF_BIT, BNX2_PCI_GRC_WINDOW3_BASE);6261 6262 /* Need to flush the previous three writes to ensure MSI-X6263 * is setup properly */6264 BNX2_RD(bp, BNX2_PCI_MSIX_CONTROL);6265 6266 for (i = 0; i < BNX2_MAX_MSIX_VEC; i++) {6267 msix_ent[i].entry = i;6268 msix_ent[i].vector = 0;6269 }6270 6271 total_vecs = msix_vecs;6272#ifdef BCM_CNIC6273 total_vecs++;6274#endif6275 total_vecs = pci_enable_msix_range(bp->pdev, msix_ent,6276 BNX2_MIN_MSIX_VEC, total_vecs);6277 if (total_vecs < 0)6278 return;6279 6280 msix_vecs = total_vecs;6281#ifdef BCM_CNIC6282 msix_vecs--;6283#endif6284 bp->irq_nvecs = msix_vecs;6285 bp->flags |= BNX2_FLAG_USING_MSIX | BNX2_FLAG_ONE_SHOT_MSI;6286 for (i = 0; i < total_vecs; i++) {6287 bp->irq_tbl[i].vector = msix_ent[i].vector;6288 snprintf(bp->irq_tbl[i].name, len, "%s-%d", dev->name, i);6289 bp->irq_tbl[i].handler = bnx2_msi_1shot;6290 }6291}6292 6293static int6294bnx2_setup_int_mode(struct bnx2 *bp, int dis_msi)6295{6296 int cpus = netif_get_num_default_rss_queues();6297 int msix_vecs;6298 6299 if (!bp->num_req_rx_rings)6300 msix_vecs = max(cpus + 1, bp->num_req_tx_rings);6301 else if (!bp->num_req_tx_rings)6302 msix_vecs = max(cpus, bp->num_req_rx_rings);6303 else6304 msix_vecs = max(bp->num_req_rx_rings, bp->num_req_tx_rings);6305 6306 msix_vecs = min(msix_vecs, RX_MAX_RINGS);6307 6308 bp->irq_tbl[0].handler = bnx2_interrupt;6309 strcpy(bp->irq_tbl[0].name, bp->dev->name);6310 bp->irq_nvecs = 1;6311 bp->irq_tbl[0].vector = bp->pdev->irq;6312 6313 if ((bp->flags & BNX2_FLAG_MSIX_CAP) && !dis_msi)6314 bnx2_enable_msix(bp, msix_vecs);6315 6316 if ((bp->flags & BNX2_FLAG_MSI_CAP) && !dis_msi &&6317 !(bp->flags & BNX2_FLAG_USING_MSIX)) {6318 if (pci_enable_msi(bp->pdev) == 0) {6319 bp->flags |= BNX2_FLAG_USING_MSI;6320 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {6321 bp->flags |= BNX2_FLAG_ONE_SHOT_MSI;6322 bp->irq_tbl[0].handler = bnx2_msi_1shot;6323 } else6324 bp->irq_tbl[0].handler = bnx2_msi;6325 6326 bp->irq_tbl[0].vector = bp->pdev->irq;6327 }6328 }6329 6330 if (!bp->num_req_tx_rings)6331 bp->num_tx_rings = rounddown_pow_of_two(bp->irq_nvecs);6332 else6333 bp->num_tx_rings = min(bp->irq_nvecs, bp->num_req_tx_rings);6334 6335 if (!bp->num_req_rx_rings)6336 bp->num_rx_rings = bp->irq_nvecs;6337 else6338 bp->num_rx_rings = min(bp->irq_nvecs, bp->num_req_rx_rings);6339 6340 netif_set_real_num_tx_queues(bp->dev, bp->num_tx_rings);6341 6342 return netif_set_real_num_rx_queues(bp->dev, bp->num_rx_rings);6343}6344 6345/* Called with rtnl_lock */6346static int6347bnx2_open(struct net_device *dev)6348{6349 struct bnx2 *bp = netdev_priv(dev);6350 int rc;6351 6352 rc = bnx2_request_firmware(bp);6353 if (rc < 0)6354 goto out;6355 6356 netif_carrier_off(dev);6357 6358 bnx2_disable_int(bp);6359 6360 rc = bnx2_setup_int_mode(bp, disable_msi);6361 if (rc)6362 goto open_err;6363 bnx2_init_napi(bp);6364 bnx2_napi_enable(bp);6365 rc = bnx2_alloc_mem(bp);6366 if (rc)6367 goto open_err;6368 6369 rc = bnx2_request_irq(bp);6370 if (rc)6371 goto open_err;6372 6373 rc = bnx2_init_nic(bp, 1);6374 if (rc)6375 goto open_err;6376 6377 mod_timer(&bp->timer, jiffies + bp->current_interval);6378 6379 atomic_set(&bp->intr_sem, 0);6380 6381 memset(bp->temp_stats_blk, 0, sizeof(struct statistics_block));6382 6383 bnx2_enable_int(bp);6384 6385 if (bp->flags & BNX2_FLAG_USING_MSI) {6386 /* Test MSI to make sure it is working6387 * If MSI test fails, go back to INTx mode6388 */6389 if (bnx2_test_intr(bp) != 0) {6390 netdev_warn(bp->dev, "No interrupt was generated using MSI, switching to INTx mode. Please report this failure to the PCI maintainer and include system chipset information.\n");6391 6392 bnx2_disable_int(bp);6393 bnx2_free_irq(bp);6394 6395 bnx2_setup_int_mode(bp, 1);6396 6397 rc = bnx2_init_nic(bp, 0);6398 6399 if (!rc)6400 rc = bnx2_request_irq(bp);6401 6402 if (rc) {6403 del_timer_sync(&bp->timer);6404 goto open_err;6405 }6406 bnx2_enable_int(bp);6407 }6408 }6409 if (bp->flags & BNX2_FLAG_USING_MSI)6410 netdev_info(dev, "using MSI\n");6411 else if (bp->flags & BNX2_FLAG_USING_MSIX)6412 netdev_info(dev, "using MSIX\n");6413 6414 netif_tx_start_all_queues(dev);6415out:6416 return rc;6417 6418open_err:6419 bnx2_napi_disable(bp);6420 bnx2_free_skbs(bp);6421 bnx2_free_irq(bp);6422 bnx2_free_mem(bp);6423 bnx2_del_napi(bp);6424 bnx2_release_firmware(bp);6425 goto out;6426}6427 6428static void6429bnx2_reset_task(struct work_struct *work)6430{6431 struct bnx2 *bp = container_of(work, struct bnx2, reset_task);6432 int rc;6433 u16 pcicmd;6434 6435 rtnl_lock();6436 if (!netif_running(bp->dev)) {6437 rtnl_unlock();6438 return;6439 }6440 6441 bnx2_netif_stop(bp, true);6442 6443 pci_read_config_word(bp->pdev, PCI_COMMAND, &pcicmd);6444 if (!(pcicmd & PCI_COMMAND_MEMORY)) {6445 /* in case PCI block has reset */6446 pci_restore_state(bp->pdev);6447 pci_save_state(bp->pdev);6448 }6449 rc = bnx2_init_nic(bp, 1);6450 if (rc) {6451 netdev_err(bp->dev, "failed to reset NIC, closing\n");6452 bnx2_napi_enable(bp);6453 dev_close(bp->dev);6454 rtnl_unlock();6455 return;6456 }6457 6458 atomic_set(&bp->intr_sem, 1);6459 bnx2_netif_start(bp, true);6460 rtnl_unlock();6461}6462 6463#define BNX2_FTQ_ENTRY(ftq) { __stringify(ftq##FTQ_CTL), BNX2_##ftq##FTQ_CTL }6464 6465static void6466bnx2_dump_ftq(struct bnx2 *bp)6467{6468 int i;6469 u32 reg, bdidx, cid, valid;6470 struct net_device *dev = bp->dev;6471 static const struct ftq_reg {6472 char *name;6473 u32 off;6474 } ftq_arr[] = {6475 BNX2_FTQ_ENTRY(RV2P_P),6476 BNX2_FTQ_ENTRY(RV2P_T),6477 BNX2_FTQ_ENTRY(RV2P_M),6478 BNX2_FTQ_ENTRY(TBDR_),6479 BNX2_FTQ_ENTRY(TDMA_),6480 BNX2_FTQ_ENTRY(TXP_),6481 BNX2_FTQ_ENTRY(TXP_),6482 BNX2_FTQ_ENTRY(TPAT_),6483 BNX2_FTQ_ENTRY(RXP_C),6484 BNX2_FTQ_ENTRY(RXP_),6485 BNX2_FTQ_ENTRY(COM_COMXQ_),6486 BNX2_FTQ_ENTRY(COM_COMTQ_),6487 BNX2_FTQ_ENTRY(COM_COMQ_),6488 BNX2_FTQ_ENTRY(CP_CPQ_),6489 };6490 6491 netdev_err(dev, "<--- start FTQ dump --->\n");6492 for (i = 0; i < ARRAY_SIZE(ftq_arr); i++)6493 netdev_err(dev, "%s %08x\n", ftq_arr[i].name,6494 bnx2_reg_rd_ind(bp, ftq_arr[i].off));6495 6496 netdev_err(dev, "CPU states:\n");6497 for (reg = BNX2_TXP_CPU_MODE; reg <= BNX2_CP_CPU_MODE; reg += 0x40000)6498 netdev_err(dev, "%06x mode %x state %x evt_mask %x pc %x pc %x instr %x\n",6499 reg, bnx2_reg_rd_ind(bp, reg),6500 bnx2_reg_rd_ind(bp, reg + 4),6501 bnx2_reg_rd_ind(bp, reg + 8),6502 bnx2_reg_rd_ind(bp, reg + 0x1c),6503 bnx2_reg_rd_ind(bp, reg + 0x1c),6504 bnx2_reg_rd_ind(bp, reg + 0x20));6505 6506 netdev_err(dev, "<--- end FTQ dump --->\n");6507 netdev_err(dev, "<--- start TBDC dump --->\n");6508 netdev_err(dev, "TBDC free cnt: %ld\n",6509 BNX2_RD(bp, BNX2_TBDC_STATUS) & BNX2_TBDC_STATUS_FREE_CNT);6510 netdev_err(dev, "LINE CID BIDX CMD VALIDS\n");6511 for (i = 0; i < 0x20; i++) {6512 int j = 0;6513 6514 BNX2_WR(bp, BNX2_TBDC_BD_ADDR, i);6515 BNX2_WR(bp, BNX2_TBDC_CAM_OPCODE,6516 BNX2_TBDC_CAM_OPCODE_OPCODE_CAM_READ);6517 BNX2_WR(bp, BNX2_TBDC_COMMAND, BNX2_TBDC_COMMAND_CMD_REG_ARB);6518 while ((BNX2_RD(bp, BNX2_TBDC_COMMAND) &6519 BNX2_TBDC_COMMAND_CMD_REG_ARB) && j < 100)6520 j++;6521 6522 cid = BNX2_RD(bp, BNX2_TBDC_CID);6523 bdidx = BNX2_RD(bp, BNX2_TBDC_BIDX);6524 valid = BNX2_RD(bp, BNX2_TBDC_CAM_OPCODE);6525 netdev_err(dev, "%02x %06x %04lx %02x [%x]\n",6526 i, cid, bdidx & BNX2_TBDC_BDIDX_BDIDX,6527 bdidx >> 24, (valid >> 8) & 0x0ff);6528 }6529 netdev_err(dev, "<--- end TBDC dump --->\n");6530}6531 6532static void6533bnx2_dump_state(struct bnx2 *bp)6534{6535 struct net_device *dev = bp->dev;6536 u32 val1, val2;6537 6538 pci_read_config_dword(bp->pdev, PCI_COMMAND, &val1);6539 netdev_err(dev, "DEBUG: intr_sem[%x] PCI_CMD[%08x]\n",6540 atomic_read(&bp->intr_sem), val1);6541 pci_read_config_dword(bp->pdev, bp->pm_cap + PCI_PM_CTRL, &val1);6542 pci_read_config_dword(bp->pdev, BNX2_PCICFG_MISC_CONFIG, &val2);6543 netdev_err(dev, "DEBUG: PCI_PM[%08x] PCI_MISC_CFG[%08x]\n", val1, val2);6544 netdev_err(dev, "DEBUG: EMAC_TX_STATUS[%08x] EMAC_RX_STATUS[%08x]\n",6545 BNX2_RD(bp, BNX2_EMAC_TX_STATUS),6546 BNX2_RD(bp, BNX2_EMAC_RX_STATUS));6547 netdev_err(dev, "DEBUG: RPM_MGMT_PKT_CTRL[%08x]\n",6548 BNX2_RD(bp, BNX2_RPM_MGMT_PKT_CTRL));6549 netdev_err(dev, "DEBUG: HC_STATS_INTERRUPT_STATUS[%08x]\n",6550 BNX2_RD(bp, BNX2_HC_STATS_INTERRUPT_STATUS));6551 if (bp->flags & BNX2_FLAG_USING_MSIX)6552 netdev_err(dev, "DEBUG: PBA[%08x]\n",6553 BNX2_RD(bp, BNX2_PCI_GRC_WINDOW3_BASE));6554}6555 6556static void6557bnx2_tx_timeout(struct net_device *dev, unsigned int txqueue)6558{6559 struct bnx2 *bp = netdev_priv(dev);6560 6561 bnx2_dump_ftq(bp);6562 bnx2_dump_state(bp);6563 bnx2_dump_mcp_state(bp);6564 6565 /* This allows the netif to be shutdown gracefully before resetting */6566 schedule_work(&bp->reset_task);6567}6568 6569/* Called with netif_tx_lock.6570 * bnx2_tx_int() runs without netif_tx_lock unless it needs to call6571 * netif_wake_queue().6572 */6573static netdev_tx_t6574bnx2_start_xmit(struct sk_buff *skb, struct net_device *dev)6575{6576 struct bnx2 *bp = netdev_priv(dev);6577 dma_addr_t mapping;6578 struct bnx2_tx_bd *txbd;6579 struct bnx2_sw_tx_bd *tx_buf;6580 u32 len, vlan_tag_flags, last_frag, mss;6581 u16 prod, ring_prod;6582 int i;6583 struct bnx2_napi *bnapi;6584 struct bnx2_tx_ring_info *txr;6585 struct netdev_queue *txq;6586 6587 /* Determine which tx ring we will be placed on */6588 i = skb_get_queue_mapping(skb);6589 bnapi = &bp->bnx2_napi[i];6590 txr = &bnapi->tx_ring;6591 txq = netdev_get_tx_queue(dev, i);6592 6593 if (unlikely(bnx2_tx_avail(bp, txr) <6594 (skb_shinfo(skb)->nr_frags + 1))) {6595 netif_tx_stop_queue(txq);6596 netdev_err(dev, "BUG! Tx ring full when queue awake!\n");6597 6598 return NETDEV_TX_BUSY;6599 }6600 len = skb_headlen(skb);6601 prod = txr->tx_prod;6602 ring_prod = BNX2_TX_RING_IDX(prod);6603 6604 vlan_tag_flags = 0;6605 if (skb->ip_summed == CHECKSUM_PARTIAL) {6606 vlan_tag_flags |= TX_BD_FLAGS_TCP_UDP_CKSUM;6607 }6608 6609 if (skb_vlan_tag_present(skb)) {6610 vlan_tag_flags |=6611 (TX_BD_FLAGS_VLAN_TAG | (skb_vlan_tag_get(skb) << 16));6612 }6613 6614 if ((mss = skb_shinfo(skb)->gso_size)) {6615 u32 tcp_opt_len;6616 struct iphdr *iph;6617 6618 vlan_tag_flags |= TX_BD_FLAGS_SW_LSO;6619 6620 tcp_opt_len = tcp_optlen(skb);6621 6622 if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6) {6623 u32 tcp_off = skb_transport_offset(skb) -6624 sizeof(struct ipv6hdr) - ETH_HLEN;6625 6626 vlan_tag_flags |= ((tcp_opt_len >> 2) << 8) |6627 TX_BD_FLAGS_SW_FLAGS;6628 if (likely(tcp_off == 0))6629 vlan_tag_flags &= ~TX_BD_FLAGS_TCP6_OFF0_MSK;6630 else {6631 tcp_off >>= 3;6632 vlan_tag_flags |= ((tcp_off & 0x3) <<6633 TX_BD_FLAGS_TCP6_OFF0_SHL) |6634 ((tcp_off & 0x10) <<6635 TX_BD_FLAGS_TCP6_OFF4_SHL);6636 mss |= (tcp_off & 0xc) << TX_BD_TCP6_OFF2_SHL;6637 }6638 } else {6639 iph = ip_hdr(skb);6640 if (tcp_opt_len || (iph->ihl > 5)) {6641 vlan_tag_flags |= ((iph->ihl - 5) +6642 (tcp_opt_len >> 2)) << 8;6643 }6644 }6645 } else6646 mss = 0;6647 6648 mapping = dma_map_single(&bp->pdev->dev, skb->data, len,6649 DMA_TO_DEVICE);6650 if (dma_mapping_error(&bp->pdev->dev, mapping)) {6651 dev_kfree_skb_any(skb);6652 return NETDEV_TX_OK;6653 }6654 6655 tx_buf = &txr->tx_buf_ring[ring_prod];6656 tx_buf->skb = skb;6657 dma_unmap_addr_set(tx_buf, mapping, mapping);6658 6659 txbd = &txr->tx_desc_ring[ring_prod];6660 6661 txbd->tx_bd_haddr_hi = (u64) mapping >> 32;6662 txbd->tx_bd_haddr_lo = (u64) mapping & 0xffffffff;6663 txbd->tx_bd_mss_nbytes = len | (mss << 16);6664 txbd->tx_bd_vlan_tag_flags = vlan_tag_flags | TX_BD_FLAGS_START;6665 6666 last_frag = skb_shinfo(skb)->nr_frags;6667 tx_buf->nr_frags = last_frag;6668 tx_buf->is_gso = skb_is_gso(skb);6669 6670 for (i = 0; i < last_frag; i++) {6671 const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];6672 6673 prod = BNX2_NEXT_TX_BD(prod);6674 ring_prod = BNX2_TX_RING_IDX(prod);6675 txbd = &txr->tx_desc_ring[ring_prod];6676 6677 len = skb_frag_size(frag);6678 mapping = skb_frag_dma_map(&bp->pdev->dev, frag, 0, len,6679 DMA_TO_DEVICE);6680 if (dma_mapping_error(&bp->pdev->dev, mapping))6681 goto dma_error;6682 dma_unmap_addr_set(&txr->tx_buf_ring[ring_prod], mapping,6683 mapping);6684 6685 txbd->tx_bd_haddr_hi = (u64) mapping >> 32;6686 txbd->tx_bd_haddr_lo = (u64) mapping & 0xffffffff;6687 txbd->tx_bd_mss_nbytes = len | (mss << 16);6688 txbd->tx_bd_vlan_tag_flags = vlan_tag_flags;6689 6690 }6691 txbd->tx_bd_vlan_tag_flags |= TX_BD_FLAGS_END;6692 6693 /* Sync BD data before updating TX mailbox */6694 wmb();6695 6696 netdev_tx_sent_queue(txq, skb->len);6697 6698 prod = BNX2_NEXT_TX_BD(prod);6699 txr->tx_prod_bseq += skb->len;6700 6701 BNX2_WR16(bp, txr->tx_bidx_addr, prod);6702 BNX2_WR(bp, txr->tx_bseq_addr, txr->tx_prod_bseq);6703 6704 txr->tx_prod = prod;6705 6706 if (unlikely(bnx2_tx_avail(bp, txr) <= MAX_SKB_FRAGS)) {6707 netif_tx_stop_queue(txq);6708 6709 /* netif_tx_stop_queue() must be done before checking6710 * tx index in bnx2_tx_avail() below, because in6711 * bnx2_tx_int(), we update tx index before checking for6712 * netif_tx_queue_stopped().6713 */6714 smp_mb();6715 if (bnx2_tx_avail(bp, txr) > bp->tx_wake_thresh)6716 netif_tx_wake_queue(txq);6717 }6718 6719 return NETDEV_TX_OK;6720dma_error:6721 /* save value of frag that failed */6722 last_frag = i;6723 6724 /* start back at beginning and unmap skb */6725 prod = txr->tx_prod;6726 ring_prod = BNX2_TX_RING_IDX(prod);6727 tx_buf = &txr->tx_buf_ring[ring_prod];6728 tx_buf->skb = NULL;6729 dma_unmap_single(&bp->pdev->dev, dma_unmap_addr(tx_buf, mapping),6730 skb_headlen(skb), DMA_TO_DEVICE);6731 6732 /* unmap remaining mapped pages */6733 for (i = 0; i < last_frag; i++) {6734 prod = BNX2_NEXT_TX_BD(prod);6735 ring_prod = BNX2_TX_RING_IDX(prod);6736 tx_buf = &txr->tx_buf_ring[ring_prod];6737 dma_unmap_page(&bp->pdev->dev, dma_unmap_addr(tx_buf, mapping),6738 skb_frag_size(&skb_shinfo(skb)->frags[i]),6739 DMA_TO_DEVICE);6740 }6741 6742 dev_kfree_skb_any(skb);6743 return NETDEV_TX_OK;6744}6745 6746/* Called with rtnl_lock */6747static int6748bnx2_close(struct net_device *dev)6749{6750 struct bnx2 *bp = netdev_priv(dev);6751 6752 bnx2_disable_int_sync(bp);6753 bnx2_napi_disable(bp);6754 netif_tx_disable(dev);6755 del_timer_sync(&bp->timer);6756 bnx2_shutdown_chip(bp);6757 bnx2_free_irq(bp);6758 bnx2_free_skbs(bp);6759 bnx2_free_mem(bp);6760 bnx2_del_napi(bp);6761 bp->link_up = 0;6762 netif_carrier_off(bp->dev);6763 return 0;6764}6765 6766static void6767bnx2_save_stats(struct bnx2 *bp)6768{6769 u32 *hw_stats = (u32 *) bp->stats_blk;6770 u32 *temp_stats = (u32 *) bp->temp_stats_blk;6771 int i;6772 6773 /* The 1st 10 counters are 64-bit counters */6774 for (i = 0; i < 20; i += 2) {6775 u32 hi;6776 u64 lo;6777 6778 hi = temp_stats[i] + hw_stats[i];6779 lo = (u64) temp_stats[i + 1] + (u64) hw_stats[i + 1];6780 if (lo > 0xffffffff)6781 hi++;6782 temp_stats[i] = hi;6783 temp_stats[i + 1] = lo & 0xffffffff;6784 }6785 6786 for ( ; i < sizeof(struct statistics_block) / 4; i++)6787 temp_stats[i] += hw_stats[i];6788}6789 6790#define GET_64BIT_NET_STATS64(ctr) \6791 (((u64) (ctr##_hi) << 32) + (u64) (ctr##_lo))6792 6793#define GET_64BIT_NET_STATS(ctr) \6794 GET_64BIT_NET_STATS64(bp->stats_blk->ctr) + \6795 GET_64BIT_NET_STATS64(bp->temp_stats_blk->ctr)6796 6797#define GET_32BIT_NET_STATS(ctr) \6798 (unsigned long) (bp->stats_blk->ctr + \6799 bp->temp_stats_blk->ctr)6800 6801static void6802bnx2_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *net_stats)6803{6804 struct bnx2 *bp = netdev_priv(dev);6805 6806 if (!bp->stats_blk)6807 return;6808 6809 net_stats->rx_packets =6810 GET_64BIT_NET_STATS(stat_IfHCInUcastPkts) +6811 GET_64BIT_NET_STATS(stat_IfHCInMulticastPkts) +6812 GET_64BIT_NET_STATS(stat_IfHCInBroadcastPkts);6813 6814 net_stats->tx_packets =6815 GET_64BIT_NET_STATS(stat_IfHCOutUcastPkts) +6816 GET_64BIT_NET_STATS(stat_IfHCOutMulticastPkts) +6817 GET_64BIT_NET_STATS(stat_IfHCOutBroadcastPkts);6818 6819 net_stats->rx_bytes =6820 GET_64BIT_NET_STATS(stat_IfHCInOctets);6821 6822 net_stats->tx_bytes =6823 GET_64BIT_NET_STATS(stat_IfHCOutOctets);6824 6825 net_stats->multicast =6826 GET_64BIT_NET_STATS(stat_IfHCInMulticastPkts);6827 6828 net_stats->collisions =6829 GET_32BIT_NET_STATS(stat_EtherStatsCollisions);6830 6831 net_stats->rx_length_errors =6832 GET_32BIT_NET_STATS(stat_EtherStatsUndersizePkts) +6833 GET_32BIT_NET_STATS(stat_EtherStatsOverrsizePkts);6834 6835 net_stats->rx_over_errors =6836 GET_32BIT_NET_STATS(stat_IfInFTQDiscards) +6837 GET_32BIT_NET_STATS(stat_IfInMBUFDiscards);6838 6839 net_stats->rx_frame_errors =6840 GET_32BIT_NET_STATS(stat_Dot3StatsAlignmentErrors);6841 6842 net_stats->rx_crc_errors =6843 GET_32BIT_NET_STATS(stat_Dot3StatsFCSErrors);6844 6845 net_stats->rx_errors = net_stats->rx_length_errors +6846 net_stats->rx_over_errors + net_stats->rx_frame_errors +6847 net_stats->rx_crc_errors;6848 6849 net_stats->tx_aborted_errors =6850 GET_32BIT_NET_STATS(stat_Dot3StatsExcessiveCollisions) +6851 GET_32BIT_NET_STATS(stat_Dot3StatsLateCollisions);6852 6853 if ((BNX2_CHIP(bp) == BNX2_CHIP_5706) ||6854 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5708_A0))6855 net_stats->tx_carrier_errors = 0;6856 else {6857 net_stats->tx_carrier_errors =6858 GET_32BIT_NET_STATS(stat_Dot3StatsCarrierSenseErrors);6859 }6860 6861 net_stats->tx_errors =6862 GET_32BIT_NET_STATS(stat_emac_tx_stat_dot3statsinternalmactransmiterrors) +6863 net_stats->tx_aborted_errors +6864 net_stats->tx_carrier_errors;6865 6866 net_stats->rx_missed_errors =6867 GET_32BIT_NET_STATS(stat_IfInFTQDiscards) +6868 GET_32BIT_NET_STATS(stat_IfInMBUFDiscards) +6869 GET_32BIT_NET_STATS(stat_FwRxDrop);6870 6871}6872 6873/* All ethtool functions called with rtnl_lock */6874 6875static int6876bnx2_get_link_ksettings(struct net_device *dev,6877 struct ethtool_link_ksettings *cmd)6878{6879 struct bnx2 *bp = netdev_priv(dev);6880 int support_serdes = 0, support_copper = 0;6881 u32 supported, advertising;6882 6883 supported = SUPPORTED_Autoneg;6884 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP) {6885 support_serdes = 1;6886 support_copper = 1;6887 } else if (bp->phy_port == PORT_FIBRE)6888 support_serdes = 1;6889 else6890 support_copper = 1;6891 6892 if (support_serdes) {6893 supported |= SUPPORTED_1000baseT_Full |6894 SUPPORTED_FIBRE;6895 if (bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE)6896 supported |= SUPPORTED_2500baseX_Full;6897 }6898 if (support_copper) {6899 supported |= SUPPORTED_10baseT_Half |6900 SUPPORTED_10baseT_Full |6901 SUPPORTED_100baseT_Half |6902 SUPPORTED_100baseT_Full |6903 SUPPORTED_1000baseT_Full |6904 SUPPORTED_TP;6905 }6906 6907 spin_lock_bh(&bp->phy_lock);6908 cmd->base.port = bp->phy_port;6909 advertising = bp->advertising;6910 6911 if (bp->autoneg & AUTONEG_SPEED) {6912 cmd->base.autoneg = AUTONEG_ENABLE;6913 } else {6914 cmd->base.autoneg = AUTONEG_DISABLE;6915 }6916 6917 if (netif_carrier_ok(dev)) {6918 cmd->base.speed = bp->line_speed;6919 cmd->base.duplex = bp->duplex;6920 if (!(bp->phy_flags & BNX2_PHY_FLAG_SERDES)) {6921 if (bp->phy_flags & BNX2_PHY_FLAG_MDIX)6922 cmd->base.eth_tp_mdix = ETH_TP_MDI_X;6923 else6924 cmd->base.eth_tp_mdix = ETH_TP_MDI;6925 }6926 }6927 else {6928 cmd->base.speed = SPEED_UNKNOWN;6929 cmd->base.duplex = DUPLEX_UNKNOWN;6930 }6931 spin_unlock_bh(&bp->phy_lock);6932 6933 cmd->base.phy_address = bp->phy_addr;6934 6935 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,6936 supported);6937 ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,6938 advertising);6939 6940 return 0;6941}6942 6943static int6944bnx2_set_link_ksettings(struct net_device *dev,6945 const struct ethtool_link_ksettings *cmd)6946{6947 struct bnx2 *bp = netdev_priv(dev);6948 u8 autoneg = bp->autoneg;6949 u8 req_duplex = bp->req_duplex;6950 u16 req_line_speed = bp->req_line_speed;6951 u32 advertising = bp->advertising;6952 int err = -EINVAL;6953 6954 spin_lock_bh(&bp->phy_lock);6955 6956 if (cmd->base.port != PORT_TP && cmd->base.port != PORT_FIBRE)6957 goto err_out_unlock;6958 6959 if (cmd->base.port != bp->phy_port &&6960 !(bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP))6961 goto err_out_unlock;6962 6963 /* If device is down, we can store the settings only if the user6964 * is setting the currently active port.6965 */6966 if (!netif_running(dev) && cmd->base.port != bp->phy_port)6967 goto err_out_unlock;6968 6969 if (cmd->base.autoneg == AUTONEG_ENABLE) {6970 autoneg |= AUTONEG_SPEED;6971 6972 ethtool_convert_link_mode_to_legacy_u32(6973 &advertising, cmd->link_modes.advertising);6974 6975 if (cmd->base.port == PORT_TP) {6976 advertising &= ETHTOOL_ALL_COPPER_SPEED;6977 if (!advertising)6978 advertising = ETHTOOL_ALL_COPPER_SPEED;6979 } else {6980 advertising &= ETHTOOL_ALL_FIBRE_SPEED;6981 if (!advertising)6982 advertising = ETHTOOL_ALL_FIBRE_SPEED;6983 }6984 advertising |= ADVERTISED_Autoneg;6985 }6986 else {6987 u32 speed = cmd->base.speed;6988 6989 if (cmd->base.port == PORT_FIBRE) {6990 if ((speed != SPEED_1000 &&6991 speed != SPEED_2500) ||6992 (cmd->base.duplex != DUPLEX_FULL))6993 goto err_out_unlock;6994 6995 if (speed == SPEED_2500 &&6996 !(bp->phy_flags & BNX2_PHY_FLAG_2_5G_CAPABLE))6997 goto err_out_unlock;6998 } else if (speed == SPEED_1000 || speed == SPEED_2500)6999 goto err_out_unlock;7000 7001 autoneg &= ~AUTONEG_SPEED;7002 req_line_speed = speed;7003 req_duplex = cmd->base.duplex;7004 advertising = 0;7005 }7006 7007 bp->autoneg = autoneg;7008 bp->advertising = advertising;7009 bp->req_line_speed = req_line_speed;7010 bp->req_duplex = req_duplex;7011 7012 err = 0;7013 /* If device is down, the new settings will be picked up when it is7014 * brought up.7015 */7016 if (netif_running(dev))7017 err = bnx2_setup_phy(bp, cmd->base.port);7018 7019err_out_unlock:7020 spin_unlock_bh(&bp->phy_lock);7021 7022 return err;7023}7024 7025static void7026bnx2_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)7027{7028 struct bnx2 *bp = netdev_priv(dev);7029 7030 strscpy(info->driver, DRV_MODULE_NAME, sizeof(info->driver));7031 strscpy(info->bus_info, pci_name(bp->pdev), sizeof(info->bus_info));7032 strscpy(info->fw_version, bp->fw_version, sizeof(info->fw_version));7033}7034 7035#define BNX2_REGDUMP_LEN (32 * 1024)7036 7037static int7038bnx2_get_regs_len(struct net_device *dev)7039{7040 return BNX2_REGDUMP_LEN;7041}7042 7043static void7044bnx2_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p)7045{7046 u32 *p = _p, i, offset;7047 u8 *orig_p = _p;7048 struct bnx2 *bp = netdev_priv(dev);7049 static const u32 reg_boundaries[] = {7050 0x0000, 0x0098, 0x0400, 0x045c,7051 0x0800, 0x0880, 0x0c00, 0x0c10,7052 0x0c30, 0x0d08, 0x1000, 0x101c,7053 0x1040, 0x1048, 0x1080, 0x10a4,7054 0x1400, 0x1490, 0x1498, 0x14f0,7055 0x1500, 0x155c, 0x1580, 0x15dc,7056 0x1600, 0x1658, 0x1680, 0x16d8,7057 0x1800, 0x1820, 0x1840, 0x1854,7058 0x1880, 0x1894, 0x1900, 0x1984,7059 0x1c00, 0x1c0c, 0x1c40, 0x1c54,7060 0x1c80, 0x1c94, 0x1d00, 0x1d84,7061 0x2000, 0x2030, 0x23c0, 0x2400,7062 0x2800, 0x2820, 0x2830, 0x2850,7063 0x2b40, 0x2c10, 0x2fc0, 0x3058,7064 0x3c00, 0x3c94, 0x4000, 0x4010,7065 0x4080, 0x4090, 0x43c0, 0x4458,7066 0x4c00, 0x4c18, 0x4c40, 0x4c54,7067 0x4fc0, 0x5010, 0x53c0, 0x5444,7068 0x5c00, 0x5c18, 0x5c80, 0x5c90,7069 0x5fc0, 0x6000, 0x6400, 0x6428,7070 0x6800, 0x6848, 0x684c, 0x6860,7071 0x6888, 0x6910, 0x80007072 };7073 7074 regs->version = 0;7075 7076 memset(p, 0, BNX2_REGDUMP_LEN);7077 7078 if (!netif_running(bp->dev))7079 return;7080 7081 i = 0;7082 offset = reg_boundaries[0];7083 p += offset;7084 while (offset < BNX2_REGDUMP_LEN) {7085 *p++ = BNX2_RD(bp, offset);7086 offset += 4;7087 if (offset == reg_boundaries[i + 1]) {7088 offset = reg_boundaries[i + 2];7089 p = (u32 *) (orig_p + offset);7090 i += 2;7091 }7092 }7093}7094 7095static void7096bnx2_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)7097{7098 struct bnx2 *bp = netdev_priv(dev);7099 7100 if (bp->flags & BNX2_FLAG_NO_WOL) {7101 wol->supported = 0;7102 wol->wolopts = 0;7103 }7104 else {7105 wol->supported = WAKE_MAGIC;7106 if (bp->wol)7107 wol->wolopts = WAKE_MAGIC;7108 else7109 wol->wolopts = 0;7110 }7111 memset(&wol->sopass, 0, sizeof(wol->sopass));7112}7113 7114static int7115bnx2_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)7116{7117 struct bnx2 *bp = netdev_priv(dev);7118 7119 if (wol->wolopts & ~WAKE_MAGIC)7120 return -EINVAL;7121 7122 if (wol->wolopts & WAKE_MAGIC) {7123 if (bp->flags & BNX2_FLAG_NO_WOL)7124 return -EINVAL;7125 7126 bp->wol = 1;7127 }7128 else {7129 bp->wol = 0;7130 }7131 7132 device_set_wakeup_enable(&bp->pdev->dev, bp->wol);7133 7134 return 0;7135}7136 7137static int7138bnx2_nway_reset(struct net_device *dev)7139{7140 struct bnx2 *bp = netdev_priv(dev);7141 u32 bmcr;7142 7143 if (!netif_running(dev))7144 return -EAGAIN;7145 7146 if (!(bp->autoneg & AUTONEG_SPEED)) {7147 return -EINVAL;7148 }7149 7150 spin_lock_bh(&bp->phy_lock);7151 7152 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP) {7153 int rc;7154 7155 rc = bnx2_setup_remote_phy(bp, bp->phy_port);7156 spin_unlock_bh(&bp->phy_lock);7157 return rc;7158 }7159 7160 /* Force a link down visible on the other side */7161 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {7162 bnx2_write_phy(bp, bp->mii_bmcr, BMCR_LOOPBACK);7163 spin_unlock_bh(&bp->phy_lock);7164 7165 msleep(20);7166 7167 spin_lock_bh(&bp->phy_lock);7168 7169 bp->current_interval = BNX2_SERDES_AN_TIMEOUT;7170 bp->serdes_an_pending = 1;7171 mod_timer(&bp->timer, jiffies + bp->current_interval);7172 }7173 7174 bnx2_read_phy(bp, bp->mii_bmcr, &bmcr);7175 bmcr &= ~BMCR_LOOPBACK;7176 bnx2_write_phy(bp, bp->mii_bmcr, bmcr | BMCR_ANRESTART | BMCR_ANENABLE);7177 7178 spin_unlock_bh(&bp->phy_lock);7179 7180 return 0;7181}7182 7183static u327184bnx2_get_link(struct net_device *dev)7185{7186 struct bnx2 *bp = netdev_priv(dev);7187 7188 return bp->link_up;7189}7190 7191static int7192bnx2_get_eeprom_len(struct net_device *dev)7193{7194 struct bnx2 *bp = netdev_priv(dev);7195 7196 if (!bp->flash_info)7197 return 0;7198 7199 return (int) bp->flash_size;7200}7201 7202static int7203bnx2_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,7204 u8 *eebuf)7205{7206 struct bnx2 *bp = netdev_priv(dev);7207 int rc;7208 7209 /* parameters already validated in ethtool_get_eeprom */7210 7211 rc = bnx2_nvram_read(bp, eeprom->offset, eebuf, eeprom->len);7212 7213 return rc;7214}7215 7216static int7217bnx2_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,7218 u8 *eebuf)7219{7220 struct bnx2 *bp = netdev_priv(dev);7221 int rc;7222 7223 /* parameters already validated in ethtool_set_eeprom */7224 7225 rc = bnx2_nvram_write(bp, eeprom->offset, eebuf, eeprom->len);7226 7227 return rc;7228}7229 7230static int bnx2_get_coalesce(struct net_device *dev,7231 struct ethtool_coalesce *coal,7232 struct kernel_ethtool_coalesce *kernel_coal,7233 struct netlink_ext_ack *extack)7234{7235 struct bnx2 *bp = netdev_priv(dev);7236 7237 memset(coal, 0, sizeof(struct ethtool_coalesce));7238 7239 coal->rx_coalesce_usecs = bp->rx_ticks;7240 coal->rx_max_coalesced_frames = bp->rx_quick_cons_trip;7241 coal->rx_coalesce_usecs_irq = bp->rx_ticks_int;7242 coal->rx_max_coalesced_frames_irq = bp->rx_quick_cons_trip_int;7243 7244 coal->tx_coalesce_usecs = bp->tx_ticks;7245 coal->tx_max_coalesced_frames = bp->tx_quick_cons_trip;7246 coal->tx_coalesce_usecs_irq = bp->tx_ticks_int;7247 coal->tx_max_coalesced_frames_irq = bp->tx_quick_cons_trip_int;7248 7249 coal->stats_block_coalesce_usecs = bp->stats_ticks;7250 7251 return 0;7252}7253 7254static int bnx2_set_coalesce(struct net_device *dev,7255 struct ethtool_coalesce *coal,7256 struct kernel_ethtool_coalesce *kernel_coal,7257 struct netlink_ext_ack *extack)7258{7259 struct bnx2 *bp = netdev_priv(dev);7260 7261 bp->rx_ticks = (u16) coal->rx_coalesce_usecs;7262 if (bp->rx_ticks > 0x3ff) bp->rx_ticks = 0x3ff;7263 7264 bp->rx_quick_cons_trip = (u16) coal->rx_max_coalesced_frames;7265 if (bp->rx_quick_cons_trip > 0xff) bp->rx_quick_cons_trip = 0xff;7266 7267 bp->rx_ticks_int = (u16) coal->rx_coalesce_usecs_irq;7268 if (bp->rx_ticks_int > 0x3ff) bp->rx_ticks_int = 0x3ff;7269 7270 bp->rx_quick_cons_trip_int = (u16) coal->rx_max_coalesced_frames_irq;7271 if (bp->rx_quick_cons_trip_int > 0xff)7272 bp->rx_quick_cons_trip_int = 0xff;7273 7274 bp->tx_ticks = (u16) coal->tx_coalesce_usecs;7275 if (bp->tx_ticks > 0x3ff) bp->tx_ticks = 0x3ff;7276 7277 bp->tx_quick_cons_trip = (u16) coal->tx_max_coalesced_frames;7278 if (bp->tx_quick_cons_trip > 0xff) bp->tx_quick_cons_trip = 0xff;7279 7280 bp->tx_ticks_int = (u16) coal->tx_coalesce_usecs_irq;7281 if (bp->tx_ticks_int > 0x3ff) bp->tx_ticks_int = 0x3ff;7282 7283 bp->tx_quick_cons_trip_int = (u16) coal->tx_max_coalesced_frames_irq;7284 if (bp->tx_quick_cons_trip_int > 0xff) bp->tx_quick_cons_trip_int =7285 0xff;7286 7287 bp->stats_ticks = coal->stats_block_coalesce_usecs;7288 if (bp->flags & BNX2_FLAG_BROKEN_STATS) {7289 if (bp->stats_ticks != 0 && bp->stats_ticks != USEC_PER_SEC)7290 bp->stats_ticks = USEC_PER_SEC;7291 }7292 if (bp->stats_ticks > BNX2_HC_STATS_TICKS_HC_STAT_TICKS)7293 bp->stats_ticks = BNX2_HC_STATS_TICKS_HC_STAT_TICKS;7294 bp->stats_ticks &= BNX2_HC_STATS_TICKS_HC_STAT_TICKS;7295 7296 if (netif_running(bp->dev)) {7297 bnx2_netif_stop(bp, true);7298 bnx2_init_nic(bp, 0);7299 bnx2_netif_start(bp, true);7300 }7301 7302 return 0;7303}7304 7305static void7306bnx2_get_ringparam(struct net_device *dev, struct ethtool_ringparam *ering,7307 struct kernel_ethtool_ringparam *kernel_ering,7308 struct netlink_ext_ack *extack)7309{7310 struct bnx2 *bp = netdev_priv(dev);7311 7312 ering->rx_max_pending = BNX2_MAX_TOTAL_RX_DESC_CNT;7313 ering->rx_jumbo_max_pending = BNX2_MAX_TOTAL_RX_PG_DESC_CNT;7314 7315 ering->rx_pending = bp->rx_ring_size;7316 ering->rx_jumbo_pending = bp->rx_pg_ring_size;7317 7318 ering->tx_max_pending = BNX2_MAX_TX_DESC_CNT;7319 ering->tx_pending = bp->tx_ring_size;7320}7321 7322static int7323bnx2_change_ring_size(struct bnx2 *bp, u32 rx, u32 tx, bool reset_irq)7324{7325 if (netif_running(bp->dev)) {7326 /* Reset will erase chipset stats; save them */7327 bnx2_save_stats(bp);7328 7329 bnx2_netif_stop(bp, true);7330 bnx2_reset_chip(bp, BNX2_DRV_MSG_CODE_RESET);7331 if (reset_irq) {7332 bnx2_free_irq(bp);7333 bnx2_del_napi(bp);7334 } else {7335 __bnx2_free_irq(bp);7336 }7337 bnx2_free_skbs(bp);7338 bnx2_free_mem(bp);7339 }7340 7341 bnx2_set_rx_ring_size(bp, rx);7342 bp->tx_ring_size = tx;7343 7344 if (netif_running(bp->dev)) {7345 int rc = 0;7346 7347 if (reset_irq) {7348 rc = bnx2_setup_int_mode(bp, disable_msi);7349 bnx2_init_napi(bp);7350 }7351 7352 if (!rc)7353 rc = bnx2_alloc_mem(bp);7354 7355 if (!rc)7356 rc = bnx2_request_irq(bp);7357 7358 if (!rc)7359 rc = bnx2_init_nic(bp, 0);7360 7361 if (rc) {7362 bnx2_napi_enable(bp);7363 dev_close(bp->dev);7364 return rc;7365 }7366#ifdef BCM_CNIC7367 mutex_lock(&bp->cnic_lock);7368 /* Let cnic know about the new status block. */7369 if (bp->cnic_eth_dev.drv_state & CNIC_DRV_STATE_REGD)7370 bnx2_setup_cnic_irq_info(bp);7371 mutex_unlock(&bp->cnic_lock);7372#endif7373 bnx2_netif_start(bp, true);7374 }7375 return 0;7376}7377 7378static int7379bnx2_set_ringparam(struct net_device *dev, struct ethtool_ringparam *ering,7380 struct kernel_ethtool_ringparam *kernel_ering,7381 struct netlink_ext_ack *extack)7382{7383 struct bnx2 *bp = netdev_priv(dev);7384 int rc;7385 7386 if ((ering->rx_pending > BNX2_MAX_TOTAL_RX_DESC_CNT) ||7387 (ering->tx_pending > BNX2_MAX_TX_DESC_CNT) ||7388 (ering->tx_pending <= MAX_SKB_FRAGS)) {7389 7390 return -EINVAL;7391 }7392 rc = bnx2_change_ring_size(bp, ering->rx_pending, ering->tx_pending,7393 false);7394 return rc;7395}7396 7397static void7398bnx2_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause)7399{7400 struct bnx2 *bp = netdev_priv(dev);7401 7402 epause->autoneg = ((bp->autoneg & AUTONEG_FLOW_CTRL) != 0);7403 epause->rx_pause = ((bp->flow_ctrl & FLOW_CTRL_RX) != 0);7404 epause->tx_pause = ((bp->flow_ctrl & FLOW_CTRL_TX) != 0);7405}7406 7407static int7408bnx2_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause)7409{7410 struct bnx2 *bp = netdev_priv(dev);7411 7412 bp->req_flow_ctrl = 0;7413 if (epause->rx_pause)7414 bp->req_flow_ctrl |= FLOW_CTRL_RX;7415 if (epause->tx_pause)7416 bp->req_flow_ctrl |= FLOW_CTRL_TX;7417 7418 if (epause->autoneg) {7419 bp->autoneg |= AUTONEG_FLOW_CTRL;7420 }7421 else {7422 bp->autoneg &= ~AUTONEG_FLOW_CTRL;7423 }7424 7425 if (netif_running(dev)) {7426 spin_lock_bh(&bp->phy_lock);7427 bnx2_setup_phy(bp, bp->phy_port);7428 spin_unlock_bh(&bp->phy_lock);7429 }7430 7431 return 0;7432}7433 7434static struct {7435 char string[ETH_GSTRING_LEN];7436} bnx2_stats_str_arr[] = {7437 { "rx_bytes" },7438 { "rx_error_bytes" },7439 { "tx_bytes" },7440 { "tx_error_bytes" },7441 { "rx_ucast_packets" },7442 { "rx_mcast_packets" },7443 { "rx_bcast_packets" },7444 { "tx_ucast_packets" },7445 { "tx_mcast_packets" },7446 { "tx_bcast_packets" },7447 { "tx_mac_errors" },7448 { "tx_carrier_errors" },7449 { "rx_crc_errors" },7450 { "rx_align_errors" },7451 { "tx_single_collisions" },7452 { "tx_multi_collisions" },7453 { "tx_deferred" },7454 { "tx_excess_collisions" },7455 { "tx_late_collisions" },7456 { "tx_total_collisions" },7457 { "rx_fragments" },7458 { "rx_jabbers" },7459 { "rx_undersize_packets" },7460 { "rx_oversize_packets" },7461 { "rx_64_byte_packets" },7462 { "rx_65_to_127_byte_packets" },7463 { "rx_128_to_255_byte_packets" },7464 { "rx_256_to_511_byte_packets" },7465 { "rx_512_to_1023_byte_packets" },7466 { "rx_1024_to_1522_byte_packets" },7467 { "rx_1523_to_9022_byte_packets" },7468 { "tx_64_byte_packets" },7469 { "tx_65_to_127_byte_packets" },7470 { "tx_128_to_255_byte_packets" },7471 { "tx_256_to_511_byte_packets" },7472 { "tx_512_to_1023_byte_packets" },7473 { "tx_1024_to_1522_byte_packets" },7474 { "tx_1523_to_9022_byte_packets" },7475 { "rx_xon_frames" },7476 { "rx_xoff_frames" },7477 { "tx_xon_frames" },7478 { "tx_xoff_frames" },7479 { "rx_mac_ctrl_frames" },7480 { "rx_filtered_packets" },7481 { "rx_ftq_discards" },7482 { "rx_discards" },7483 { "rx_fw_discards" },7484};7485 7486#define BNX2_NUM_STATS ARRAY_SIZE(bnx2_stats_str_arr)7487 7488#define STATS_OFFSET32(offset_name) (offsetof(struct statistics_block, offset_name) / 4)7489 7490static const unsigned long bnx2_stats_offset_arr[BNX2_NUM_STATS] = {7491 STATS_OFFSET32(stat_IfHCInOctets_hi),7492 STATS_OFFSET32(stat_IfHCInBadOctets_hi),7493 STATS_OFFSET32(stat_IfHCOutOctets_hi),7494 STATS_OFFSET32(stat_IfHCOutBadOctets_hi),7495 STATS_OFFSET32(stat_IfHCInUcastPkts_hi),7496 STATS_OFFSET32(stat_IfHCInMulticastPkts_hi),7497 STATS_OFFSET32(stat_IfHCInBroadcastPkts_hi),7498 STATS_OFFSET32(stat_IfHCOutUcastPkts_hi),7499 STATS_OFFSET32(stat_IfHCOutMulticastPkts_hi),7500 STATS_OFFSET32(stat_IfHCOutBroadcastPkts_hi),7501 STATS_OFFSET32(stat_emac_tx_stat_dot3statsinternalmactransmiterrors),7502 STATS_OFFSET32(stat_Dot3StatsCarrierSenseErrors),7503 STATS_OFFSET32(stat_Dot3StatsFCSErrors),7504 STATS_OFFSET32(stat_Dot3StatsAlignmentErrors),7505 STATS_OFFSET32(stat_Dot3StatsSingleCollisionFrames),7506 STATS_OFFSET32(stat_Dot3StatsMultipleCollisionFrames),7507 STATS_OFFSET32(stat_Dot3StatsDeferredTransmissions),7508 STATS_OFFSET32(stat_Dot3StatsExcessiveCollisions),7509 STATS_OFFSET32(stat_Dot3StatsLateCollisions),7510 STATS_OFFSET32(stat_EtherStatsCollisions),7511 STATS_OFFSET32(stat_EtherStatsFragments),7512 STATS_OFFSET32(stat_EtherStatsJabbers),7513 STATS_OFFSET32(stat_EtherStatsUndersizePkts),7514 STATS_OFFSET32(stat_EtherStatsOverrsizePkts),7515 STATS_OFFSET32(stat_EtherStatsPktsRx64Octets),7516 STATS_OFFSET32(stat_EtherStatsPktsRx65Octetsto127Octets),7517 STATS_OFFSET32(stat_EtherStatsPktsRx128Octetsto255Octets),7518 STATS_OFFSET32(stat_EtherStatsPktsRx256Octetsto511Octets),7519 STATS_OFFSET32(stat_EtherStatsPktsRx512Octetsto1023Octets),7520 STATS_OFFSET32(stat_EtherStatsPktsRx1024Octetsto1522Octets),7521 STATS_OFFSET32(stat_EtherStatsPktsRx1523Octetsto9022Octets),7522 STATS_OFFSET32(stat_EtherStatsPktsTx64Octets),7523 STATS_OFFSET32(stat_EtherStatsPktsTx65Octetsto127Octets),7524 STATS_OFFSET32(stat_EtherStatsPktsTx128Octetsto255Octets),7525 STATS_OFFSET32(stat_EtherStatsPktsTx256Octetsto511Octets),7526 STATS_OFFSET32(stat_EtherStatsPktsTx512Octetsto1023Octets),7527 STATS_OFFSET32(stat_EtherStatsPktsTx1024Octetsto1522Octets),7528 STATS_OFFSET32(stat_EtherStatsPktsTx1523Octetsto9022Octets),7529 STATS_OFFSET32(stat_XonPauseFramesReceived),7530 STATS_OFFSET32(stat_XoffPauseFramesReceived),7531 STATS_OFFSET32(stat_OutXonSent),7532 STATS_OFFSET32(stat_OutXoffSent),7533 STATS_OFFSET32(stat_MacControlFramesReceived),7534 STATS_OFFSET32(stat_IfInFramesL2FilterDiscards),7535 STATS_OFFSET32(stat_IfInFTQDiscards),7536 STATS_OFFSET32(stat_IfInMBUFDiscards),7537 STATS_OFFSET32(stat_FwRxDrop),7538};7539 7540/* stat_IfHCInBadOctets and stat_Dot3StatsCarrierSenseErrors are7541 * skipped because of errata.7542 */7543static u8 bnx2_5706_stats_len_arr[BNX2_NUM_STATS] = {7544 8,0,8,8,8,8,8,8,8,8,7545 4,0,4,4,4,4,4,4,4,4,7546 4,4,4,4,4,4,4,4,4,4,7547 4,4,4,4,4,4,4,4,4,4,7548 4,4,4,4,4,4,4,7549};7550 7551static u8 bnx2_5708_stats_len_arr[BNX2_NUM_STATS] = {7552 8,0,8,8,8,8,8,8,8,8,7553 4,4,4,4,4,4,4,4,4,4,7554 4,4,4,4,4,4,4,4,4,4,7555 4,4,4,4,4,4,4,4,4,4,7556 4,4,4,4,4,4,4,7557};7558 7559#define BNX2_NUM_TESTS 67560 7561static struct {7562 char string[ETH_GSTRING_LEN];7563} bnx2_tests_str_arr[BNX2_NUM_TESTS] = {7564 { "register_test (offline)" },7565 { "memory_test (offline)" },7566 { "loopback_test (offline)" },7567 { "nvram_test (online)" },7568 { "interrupt_test (online)" },7569 { "link_test (online)" },7570};7571 7572static int7573bnx2_get_sset_count(struct net_device *dev, int sset)7574{7575 switch (sset) {7576 case ETH_SS_TEST:7577 return BNX2_NUM_TESTS;7578 case ETH_SS_STATS:7579 return BNX2_NUM_STATS;7580 default:7581 return -EOPNOTSUPP;7582 }7583}7584 7585static void7586bnx2_self_test(struct net_device *dev, struct ethtool_test *etest, u64 *buf)7587{7588 struct bnx2 *bp = netdev_priv(dev);7589 7590 memset(buf, 0, sizeof(u64) * BNX2_NUM_TESTS);7591 if (etest->flags & ETH_TEST_FL_OFFLINE) {7592 int i;7593 7594 bnx2_netif_stop(bp, true);7595 bnx2_reset_chip(bp, BNX2_DRV_MSG_CODE_DIAG);7596 bnx2_free_skbs(bp);7597 7598 if (bnx2_test_registers(bp) != 0) {7599 buf[0] = 1;7600 etest->flags |= ETH_TEST_FL_FAILED;7601 }7602 if (bnx2_test_memory(bp) != 0) {7603 buf[1] = 1;7604 etest->flags |= ETH_TEST_FL_FAILED;7605 }7606 if ((buf[2] = bnx2_test_loopback(bp)) != 0)7607 etest->flags |= ETH_TEST_FL_FAILED;7608 7609 if (!netif_running(bp->dev))7610 bnx2_shutdown_chip(bp);7611 else {7612 bnx2_init_nic(bp, 1);7613 bnx2_netif_start(bp, true);7614 }7615 7616 /* wait for link up */7617 for (i = 0; i < 7; i++) {7618 if (bp->link_up)7619 break;7620 msleep_interruptible(1000);7621 }7622 }7623 7624 if (bnx2_test_nvram(bp) != 0) {7625 buf[3] = 1;7626 etest->flags |= ETH_TEST_FL_FAILED;7627 }7628 if (bnx2_test_intr(bp) != 0) {7629 buf[4] = 1;7630 etest->flags |= ETH_TEST_FL_FAILED;7631 }7632 7633 if (bnx2_test_link(bp) != 0) {7634 buf[5] = 1;7635 etest->flags |= ETH_TEST_FL_FAILED;7636 7637 }7638}7639 7640static void7641bnx2_get_strings(struct net_device *dev, u32 stringset, u8 *buf)7642{7643 switch (stringset) {7644 case ETH_SS_STATS:7645 memcpy(buf, bnx2_stats_str_arr,7646 sizeof(bnx2_stats_str_arr));7647 break;7648 case ETH_SS_TEST:7649 memcpy(buf, bnx2_tests_str_arr,7650 sizeof(bnx2_tests_str_arr));7651 break;7652 }7653}7654 7655static void7656bnx2_get_ethtool_stats(struct net_device *dev,7657 struct ethtool_stats *stats, u64 *buf)7658{7659 struct bnx2 *bp = netdev_priv(dev);7660 int i;7661 u32 *hw_stats = (u32 *) bp->stats_blk;7662 u32 *temp_stats = (u32 *) bp->temp_stats_blk;7663 u8 *stats_len_arr = NULL;7664 7665 if (!hw_stats) {7666 memset(buf, 0, sizeof(u64) * BNX2_NUM_STATS);7667 return;7668 }7669 7670 if ((BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A0) ||7671 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A1) ||7672 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A2) ||7673 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5708_A0))7674 stats_len_arr = bnx2_5706_stats_len_arr;7675 else7676 stats_len_arr = bnx2_5708_stats_len_arr;7677 7678 for (i = 0; i < BNX2_NUM_STATS; i++) {7679 unsigned long offset;7680 7681 if (stats_len_arr[i] == 0) {7682 /* skip this counter */7683 buf[i] = 0;7684 continue;7685 }7686 7687 offset = bnx2_stats_offset_arr[i];7688 if (stats_len_arr[i] == 4) {7689 /* 4-byte counter */7690 buf[i] = (u64) *(hw_stats + offset) +7691 *(temp_stats + offset);7692 continue;7693 }7694 /* 8-byte counter */7695 buf[i] = (((u64) *(hw_stats + offset)) << 32) +7696 *(hw_stats + offset + 1) +7697 (((u64) *(temp_stats + offset)) << 32) +7698 *(temp_stats + offset + 1);7699 }7700}7701 7702static int7703bnx2_set_phys_id(struct net_device *dev, enum ethtool_phys_id_state state)7704{7705 struct bnx2 *bp = netdev_priv(dev);7706 7707 switch (state) {7708 case ETHTOOL_ID_ACTIVE:7709 bp->leds_save = BNX2_RD(bp, BNX2_MISC_CFG);7710 BNX2_WR(bp, BNX2_MISC_CFG, BNX2_MISC_CFG_LEDMODE_MAC);7711 return 1; /* cycle on/off once per second */7712 7713 case ETHTOOL_ID_ON:7714 BNX2_WR(bp, BNX2_EMAC_LED, BNX2_EMAC_LED_OVERRIDE |7715 BNX2_EMAC_LED_1000MB_OVERRIDE |7716 BNX2_EMAC_LED_100MB_OVERRIDE |7717 BNX2_EMAC_LED_10MB_OVERRIDE |7718 BNX2_EMAC_LED_TRAFFIC_OVERRIDE |7719 BNX2_EMAC_LED_TRAFFIC);7720 break;7721 7722 case ETHTOOL_ID_OFF:7723 BNX2_WR(bp, BNX2_EMAC_LED, BNX2_EMAC_LED_OVERRIDE);7724 break;7725 7726 case ETHTOOL_ID_INACTIVE:7727 BNX2_WR(bp, BNX2_EMAC_LED, 0);7728 BNX2_WR(bp, BNX2_MISC_CFG, bp->leds_save);7729 break;7730 }7731 7732 return 0;7733}7734 7735static int7736bnx2_set_features(struct net_device *dev, netdev_features_t features)7737{7738 struct bnx2 *bp = netdev_priv(dev);7739 7740 /* TSO with VLAN tag won't work with current firmware */7741 if (features & NETIF_F_HW_VLAN_CTAG_TX)7742 dev->vlan_features |= (dev->hw_features & NETIF_F_ALL_TSO);7743 else7744 dev->vlan_features &= ~NETIF_F_ALL_TSO;7745 7746 if ((!!(features & NETIF_F_HW_VLAN_CTAG_RX) !=7747 !!(bp->rx_mode & BNX2_EMAC_RX_MODE_KEEP_VLAN_TAG)) &&7748 netif_running(dev)) {7749 bnx2_netif_stop(bp, false);7750 dev->features = features;7751 bnx2_set_rx_mode(dev);7752 bnx2_fw_sync(bp, BNX2_DRV_MSG_CODE_KEEP_VLAN_UPDATE, 0, 1);7753 bnx2_netif_start(bp, false);7754 return 1;7755 }7756 7757 return 0;7758}7759 7760static void bnx2_get_channels(struct net_device *dev,7761 struct ethtool_channels *channels)7762{7763 struct bnx2 *bp = netdev_priv(dev);7764 u32 max_rx_rings = 1;7765 u32 max_tx_rings = 1;7766 7767 if ((bp->flags & BNX2_FLAG_MSIX_CAP) && !disable_msi) {7768 max_rx_rings = RX_MAX_RINGS;7769 max_tx_rings = TX_MAX_RINGS;7770 }7771 7772 channels->max_rx = max_rx_rings;7773 channels->max_tx = max_tx_rings;7774 channels->max_other = 0;7775 channels->max_combined = 0;7776 channels->rx_count = bp->num_rx_rings;7777 channels->tx_count = bp->num_tx_rings;7778 channels->other_count = 0;7779 channels->combined_count = 0;7780}7781 7782static int bnx2_set_channels(struct net_device *dev,7783 struct ethtool_channels *channels)7784{7785 struct bnx2 *bp = netdev_priv(dev);7786 u32 max_rx_rings = 1;7787 u32 max_tx_rings = 1;7788 int rc = 0;7789 7790 if ((bp->flags & BNX2_FLAG_MSIX_CAP) && !disable_msi) {7791 max_rx_rings = RX_MAX_RINGS;7792 max_tx_rings = TX_MAX_RINGS;7793 }7794 if (channels->rx_count > max_rx_rings ||7795 channels->tx_count > max_tx_rings)7796 return -EINVAL;7797 7798 bp->num_req_rx_rings = channels->rx_count;7799 bp->num_req_tx_rings = channels->tx_count;7800 7801 if (netif_running(dev))7802 rc = bnx2_change_ring_size(bp, bp->rx_ring_size,7803 bp->tx_ring_size, true);7804 7805 return rc;7806}7807 7808static const struct ethtool_ops bnx2_ethtool_ops = {7809 .supported_coalesce_params = ETHTOOL_COALESCE_USECS |7810 ETHTOOL_COALESCE_MAX_FRAMES |7811 ETHTOOL_COALESCE_USECS_IRQ |7812 ETHTOOL_COALESCE_MAX_FRAMES_IRQ |7813 ETHTOOL_COALESCE_STATS_BLOCK_USECS,7814 .get_drvinfo = bnx2_get_drvinfo,7815 .get_regs_len = bnx2_get_regs_len,7816 .get_regs = bnx2_get_regs,7817 .get_wol = bnx2_get_wol,7818 .set_wol = bnx2_set_wol,7819 .nway_reset = bnx2_nway_reset,7820 .get_link = bnx2_get_link,7821 .get_eeprom_len = bnx2_get_eeprom_len,7822 .get_eeprom = bnx2_get_eeprom,7823 .set_eeprom = bnx2_set_eeprom,7824 .get_coalesce = bnx2_get_coalesce,7825 .set_coalesce = bnx2_set_coalesce,7826 .get_ringparam = bnx2_get_ringparam,7827 .set_ringparam = bnx2_set_ringparam,7828 .get_pauseparam = bnx2_get_pauseparam,7829 .set_pauseparam = bnx2_set_pauseparam,7830 .self_test = bnx2_self_test,7831 .get_strings = bnx2_get_strings,7832 .set_phys_id = bnx2_set_phys_id,7833 .get_ethtool_stats = bnx2_get_ethtool_stats,7834 .get_sset_count = bnx2_get_sset_count,7835 .get_channels = bnx2_get_channels,7836 .set_channels = bnx2_set_channels,7837 .get_link_ksettings = bnx2_get_link_ksettings,7838 .set_link_ksettings = bnx2_set_link_ksettings,7839};7840 7841/* Called with rtnl_lock */7842static int7843bnx2_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)7844{7845 struct mii_ioctl_data *data = if_mii(ifr);7846 struct bnx2 *bp = netdev_priv(dev);7847 int err;7848 7849 switch(cmd) {7850 case SIOCGMIIPHY:7851 data->phy_id = bp->phy_addr;7852 7853 fallthrough;7854 case SIOCGMIIREG: {7855 u32 mii_regval;7856 7857 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)7858 return -EOPNOTSUPP;7859 7860 if (!netif_running(dev))7861 return -EAGAIN;7862 7863 spin_lock_bh(&bp->phy_lock);7864 err = bnx2_read_phy(bp, data->reg_num & 0x1f, &mii_regval);7865 spin_unlock_bh(&bp->phy_lock);7866 7867 data->val_out = mii_regval;7868 7869 return err;7870 }7871 7872 case SIOCSMIIREG:7873 if (bp->phy_flags & BNX2_PHY_FLAG_REMOTE_PHY_CAP)7874 return -EOPNOTSUPP;7875 7876 if (!netif_running(dev))7877 return -EAGAIN;7878 7879 spin_lock_bh(&bp->phy_lock);7880 err = bnx2_write_phy(bp, data->reg_num & 0x1f, data->val_in);7881 spin_unlock_bh(&bp->phy_lock);7882 7883 return err;7884 7885 default:7886 /* do nothing */7887 break;7888 }7889 return -EOPNOTSUPP;7890}7891 7892/* Called with rtnl_lock */7893static int7894bnx2_change_mac_addr(struct net_device *dev, void *p)7895{7896 struct sockaddr *addr = p;7897 struct bnx2 *bp = netdev_priv(dev);7898 7899 if (!is_valid_ether_addr(addr->sa_data))7900 return -EADDRNOTAVAIL;7901 7902 eth_hw_addr_set(dev, addr->sa_data);7903 if (netif_running(dev))7904 bnx2_set_mac_addr(bp, bp->dev->dev_addr, 0);7905 7906 return 0;7907}7908 7909/* Called with rtnl_lock */7910static int7911bnx2_change_mtu(struct net_device *dev, int new_mtu)7912{7913 struct bnx2 *bp = netdev_priv(dev);7914 7915 WRITE_ONCE(dev->mtu, new_mtu);7916 return bnx2_change_ring_size(bp, bp->rx_ring_size, bp->tx_ring_size,7917 false);7918}7919 7920#ifdef CONFIG_NET_POLL_CONTROLLER7921static void7922poll_bnx2(struct net_device *dev)7923{7924 struct bnx2 *bp = netdev_priv(dev);7925 int i;7926 7927 for (i = 0; i < bp->irq_nvecs; i++) {7928 struct bnx2_irq *irq = &bp->irq_tbl[i];7929 7930 disable_irq(irq->vector);7931 irq->handler(irq->vector, &bp->bnx2_napi[i]);7932 enable_irq(irq->vector);7933 }7934}7935#endif7936 7937static void7938bnx2_get_5709_media(struct bnx2 *bp)7939{7940 u32 val = BNX2_RD(bp, BNX2_MISC_DUAL_MEDIA_CTRL);7941 u32 bond_id = val & BNX2_MISC_DUAL_MEDIA_CTRL_BOND_ID;7942 u32 strap;7943 7944 if (bond_id == BNX2_MISC_DUAL_MEDIA_CTRL_BOND_ID_C)7945 return;7946 else if (bond_id == BNX2_MISC_DUAL_MEDIA_CTRL_BOND_ID_S) {7947 bp->phy_flags |= BNX2_PHY_FLAG_SERDES;7948 return;7949 }7950 7951 if (val & BNX2_MISC_DUAL_MEDIA_CTRL_STRAP_OVERRIDE)7952 strap = (val & BNX2_MISC_DUAL_MEDIA_CTRL_PHY_CTRL) >> 21;7953 else7954 strap = (val & BNX2_MISC_DUAL_MEDIA_CTRL_PHY_CTRL_STRAP) >> 8;7955 7956 if (bp->func == 0) {7957 switch (strap) {7958 case 0x4:7959 case 0x5:7960 case 0x6:7961 bp->phy_flags |= BNX2_PHY_FLAG_SERDES;7962 return;7963 }7964 } else {7965 switch (strap) {7966 case 0x1:7967 case 0x2:7968 case 0x4:7969 bp->phy_flags |= BNX2_PHY_FLAG_SERDES;7970 return;7971 }7972 }7973}7974 7975static void7976bnx2_get_pci_speed(struct bnx2 *bp)7977{7978 u32 reg;7979 7980 reg = BNX2_RD(bp, BNX2_PCICFG_MISC_STATUS);7981 if (reg & BNX2_PCICFG_MISC_STATUS_PCIX_DET) {7982 u32 clkreg;7983 7984 bp->flags |= BNX2_FLAG_PCIX;7985 7986 clkreg = BNX2_RD(bp, BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS);7987 7988 clkreg &= BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET;7989 switch (clkreg) {7990 case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_133MHZ:7991 bp->bus_speed_mhz = 133;7992 break;7993 7994 case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_95MHZ:7995 bp->bus_speed_mhz = 100;7996 break;7997 7998 case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_66MHZ:7999 case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_80MHZ:8000 bp->bus_speed_mhz = 66;8001 break;8002 8003 case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_48MHZ:8004 case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_55MHZ:8005 bp->bus_speed_mhz = 50;8006 break;8007 8008 case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_LOW:8009 case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_32MHZ:8010 case BNX2_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_38MHZ:8011 bp->bus_speed_mhz = 33;8012 break;8013 }8014 }8015 else {8016 if (reg & BNX2_PCICFG_MISC_STATUS_M66EN)8017 bp->bus_speed_mhz = 66;8018 else8019 bp->bus_speed_mhz = 33;8020 }8021 8022 if (reg & BNX2_PCICFG_MISC_STATUS_32BIT_DET)8023 bp->flags |= BNX2_FLAG_PCI_32BIT;8024 8025}8026 8027static void8028bnx2_read_vpd_fw_ver(struct bnx2 *bp)8029{8030 unsigned int len;8031 int rc, i, j;8032 u8 *data;8033 8034#define BNX2_VPD_NVRAM_OFFSET 0x3008035#define BNX2_VPD_LEN 1288036#define BNX2_MAX_VER_SLEN 308037 8038 data = kmalloc(BNX2_VPD_LEN, GFP_KERNEL);8039 if (!data)8040 return;8041 8042 rc = bnx2_nvram_read(bp, BNX2_VPD_NVRAM_OFFSET, data, BNX2_VPD_LEN);8043 if (rc)8044 goto vpd_done;8045 8046 for (i = 0; i < BNX2_VPD_LEN; i += 4)8047 swab32s((u32 *)&data[i]);8048 8049 j = pci_vpd_find_ro_info_keyword(data, BNX2_VPD_LEN,8050 PCI_VPD_RO_KEYWORD_MFR_ID, &len);8051 if (j < 0)8052 goto vpd_done;8053 8054 if (len != 4 || memcmp(&data[j], "1028", 4))8055 goto vpd_done;8056 8057 j = pci_vpd_find_ro_info_keyword(data, BNX2_VPD_LEN,8058 PCI_VPD_RO_KEYWORD_VENDOR0,8059 &len);8060 if (j < 0)8061 goto vpd_done;8062 8063 if (len > BNX2_MAX_VER_SLEN)8064 goto vpd_done;8065 8066 memcpy(bp->fw_version, &data[j], len);8067 bp->fw_version[len] = ' ';8068 8069vpd_done:8070 kfree(data);8071}8072 8073static int8074bnx2_init_board(struct pci_dev *pdev, struct net_device *dev)8075{8076 struct bnx2 *bp;8077 int rc, i, j;8078 u32 reg;8079 u64 dma_mask, persist_dma_mask;8080 8081 SET_NETDEV_DEV(dev, &pdev->dev);8082 bp = netdev_priv(dev);8083 8084 bp->flags = 0;8085 bp->phy_flags = 0;8086 8087 bp->temp_stats_blk =8088 kzalloc(sizeof(struct statistics_block), GFP_KERNEL);8089 8090 if (!bp->temp_stats_blk) {8091 rc = -ENOMEM;8092 goto err_out;8093 }8094 8095 /* enable device (incl. PCI PM wakeup), and bus-mastering */8096 rc = pci_enable_device(pdev);8097 if (rc) {8098 dev_err(&pdev->dev, "Cannot enable PCI device, aborting\n");8099 goto err_out;8100 }8101 8102 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {8103 dev_err(&pdev->dev,8104 "Cannot find PCI device base address, aborting\n");8105 rc = -ENODEV;8106 goto err_out_disable;8107 }8108 8109 rc = pci_request_regions(pdev, DRV_MODULE_NAME);8110 if (rc) {8111 dev_err(&pdev->dev, "Cannot obtain PCI resources, aborting\n");8112 goto err_out_disable;8113 }8114 8115 pci_set_master(pdev);8116 8117 bp->pm_cap = pdev->pm_cap;8118 if (bp->pm_cap == 0) {8119 dev_err(&pdev->dev,8120 "Cannot find power management capability, aborting\n");8121 rc = -EIO;8122 goto err_out_release;8123 }8124 8125 bp->dev = dev;8126 bp->pdev = pdev;8127 8128 spin_lock_init(&bp->phy_lock);8129 spin_lock_init(&bp->indirect_lock);8130#ifdef BCM_CNIC8131 mutex_init(&bp->cnic_lock);8132#endif8133 INIT_WORK(&bp->reset_task, bnx2_reset_task);8134 8135 bp->regview = pci_iomap(pdev, 0, MB_GET_CID_ADDR(TX_TSS_CID +8136 TX_MAX_TSS_RINGS + 1));8137 if (!bp->regview) {8138 dev_err(&pdev->dev, "Cannot map register space, aborting\n");8139 rc = -ENOMEM;8140 goto err_out_release;8141 }8142 8143 /* Configure byte swap and enable write to the reg_window registers.8144 * Rely on CPU to do target byte swapping on big endian systems8145 * The chip's target access swapping will not swap all accesses8146 */8147 BNX2_WR(bp, BNX2_PCICFG_MISC_CONFIG,8148 BNX2_PCICFG_MISC_CONFIG_REG_WINDOW_ENA |8149 BNX2_PCICFG_MISC_CONFIG_TARGET_MB_WORD_SWAP);8150 8151 bp->chip_id = BNX2_RD(bp, BNX2_MISC_ID);8152 8153 if (BNX2_CHIP(bp) == BNX2_CHIP_5709) {8154 if (!pci_is_pcie(pdev)) {8155 dev_err(&pdev->dev, "Not PCIE, aborting\n");8156 rc = -EIO;8157 goto err_out_unmap;8158 }8159 bp->flags |= BNX2_FLAG_PCIE;8160 if (BNX2_CHIP_REV(bp) == BNX2_CHIP_REV_Ax)8161 bp->flags |= BNX2_FLAG_JUMBO_BROKEN;8162 } else {8163 bp->pcix_cap = pci_find_capability(pdev, PCI_CAP_ID_PCIX);8164 if (bp->pcix_cap == 0) {8165 dev_err(&pdev->dev,8166 "Cannot find PCIX capability, aborting\n");8167 rc = -EIO;8168 goto err_out_unmap;8169 }8170 bp->flags |= BNX2_FLAG_BROKEN_STATS;8171 }8172 8173 if (BNX2_CHIP(bp) == BNX2_CHIP_5709 &&8174 BNX2_CHIP_REV(bp) != BNX2_CHIP_REV_Ax) {8175 if (pdev->msix_cap)8176 bp->flags |= BNX2_FLAG_MSIX_CAP;8177 }8178 8179 if (BNX2_CHIP_ID(bp) != BNX2_CHIP_ID_5706_A0 &&8180 BNX2_CHIP_ID(bp) != BNX2_CHIP_ID_5706_A1) {8181 if (pdev->msi_cap)8182 bp->flags |= BNX2_FLAG_MSI_CAP;8183 }8184 8185 /* 5708 cannot support DMA addresses > 40-bit. */8186 if (BNX2_CHIP(bp) == BNX2_CHIP_5708)8187 persist_dma_mask = dma_mask = DMA_BIT_MASK(40);8188 else8189 persist_dma_mask = dma_mask = DMA_BIT_MASK(64);8190 8191 /* Configure DMA attributes. */8192 if (dma_set_mask(&pdev->dev, dma_mask) == 0) {8193 dev->features |= NETIF_F_HIGHDMA;8194 rc = dma_set_coherent_mask(&pdev->dev, persist_dma_mask);8195 if (rc) {8196 dev_err(&pdev->dev,8197 "dma_set_coherent_mask failed, aborting\n");8198 goto err_out_unmap;8199 }8200 } else if ((rc = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) != 0) {8201 dev_err(&pdev->dev, "System does not support DMA, aborting\n");8202 goto err_out_unmap;8203 }8204 8205 if (!(bp->flags & BNX2_FLAG_PCIE))8206 bnx2_get_pci_speed(bp);8207 8208 /* 5706A0 may falsely detect SERR and PERR. */8209 if (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A0) {8210 reg = BNX2_RD(bp, PCI_COMMAND);8211 reg &= ~(PCI_COMMAND_SERR | PCI_COMMAND_PARITY);8212 BNX2_WR(bp, PCI_COMMAND, reg);8213 } else if ((BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A1) &&8214 !(bp->flags & BNX2_FLAG_PCIX)) {8215 dev_err(&pdev->dev,8216 "5706 A1 can only be used in a PCIX bus, aborting\n");8217 rc = -EPERM;8218 goto err_out_unmap;8219 }8220 8221 bnx2_init_nvram(bp);8222 8223 reg = bnx2_reg_rd_ind(bp, BNX2_SHM_HDR_SIGNATURE);8224 8225 if (bnx2_reg_rd_ind(bp, BNX2_MCP_TOE_ID) & BNX2_MCP_TOE_ID_FUNCTION_ID)8226 bp->func = 1;8227 8228 if ((reg & BNX2_SHM_HDR_SIGNATURE_SIG_MASK) ==8229 BNX2_SHM_HDR_SIGNATURE_SIG) {8230 u32 off = bp->func << 2;8231 8232 bp->shmem_base = bnx2_reg_rd_ind(bp, BNX2_SHM_HDR_ADDR_0 + off);8233 } else8234 bp->shmem_base = HOST_VIEW_SHMEM_BASE;8235 8236 /* Get the permanent MAC address. First we need to make sure the8237 * firmware is actually running.8238 */8239 reg = bnx2_shmem_rd(bp, BNX2_DEV_INFO_SIGNATURE);8240 8241 if ((reg & BNX2_DEV_INFO_SIGNATURE_MAGIC_MASK) !=8242 BNX2_DEV_INFO_SIGNATURE_MAGIC) {8243 dev_err(&pdev->dev, "Firmware not running, aborting\n");8244 rc = -ENODEV;8245 goto err_out_unmap;8246 }8247 8248 bnx2_read_vpd_fw_ver(bp);8249 8250 j = strlen(bp->fw_version);8251 reg = bnx2_shmem_rd(bp, BNX2_DEV_INFO_BC_REV);8252 for (i = 0; i < 3 && j < 24; i++) {8253 u8 num, k, skip0;8254 8255 if (i == 0) {8256 bp->fw_version[j++] = 'b';8257 bp->fw_version[j++] = 'c';8258 bp->fw_version[j++] = ' ';8259 }8260 num = (u8) (reg >> (24 - (i * 8)));8261 for (k = 100, skip0 = 1; k >= 1; num %= k, k /= 10) {8262 if (num >= k || !skip0 || k == 1) {8263 bp->fw_version[j++] = (num / k) + '0';8264 skip0 = 0;8265 }8266 }8267 if (i != 2)8268 bp->fw_version[j++] = '.';8269 }8270 reg = bnx2_shmem_rd(bp, BNX2_PORT_FEATURE);8271 if (reg & BNX2_PORT_FEATURE_WOL_ENABLED)8272 bp->wol = 1;8273 8274 if (reg & BNX2_PORT_FEATURE_ASF_ENABLED) {8275 bp->flags |= BNX2_FLAG_ASF_ENABLE;8276 8277 for (i = 0; i < 30; i++) {8278 reg = bnx2_shmem_rd(bp, BNX2_BC_STATE_CONDITION);8279 if (reg & BNX2_CONDITION_MFW_RUN_MASK)8280 break;8281 msleep(10);8282 }8283 }8284 reg = bnx2_shmem_rd(bp, BNX2_BC_STATE_CONDITION);8285 reg &= BNX2_CONDITION_MFW_RUN_MASK;8286 if (reg != BNX2_CONDITION_MFW_RUN_UNKNOWN &&8287 reg != BNX2_CONDITION_MFW_RUN_NONE) {8288 u32 addr = bnx2_shmem_rd(bp, BNX2_MFW_VER_PTR);8289 8290 if (j < 32)8291 bp->fw_version[j++] = ' ';8292 for (i = 0; i < 3 && j < 28; i++) {8293 reg = bnx2_reg_rd_ind(bp, addr + i * 4);8294 reg = be32_to_cpu(reg);8295 memcpy(&bp->fw_version[j], ®, 4);8296 j += 4;8297 }8298 }8299 8300 reg = bnx2_shmem_rd(bp, BNX2_PORT_HW_CFG_MAC_UPPER);8301 bp->mac_addr[0] = (u8) (reg >> 8);8302 bp->mac_addr[1] = (u8) reg;8303 8304 reg = bnx2_shmem_rd(bp, BNX2_PORT_HW_CFG_MAC_LOWER);8305 bp->mac_addr[2] = (u8) (reg >> 24);8306 bp->mac_addr[3] = (u8) (reg >> 16);8307 bp->mac_addr[4] = (u8) (reg >> 8);8308 bp->mac_addr[5] = (u8) reg;8309 8310 bp->tx_ring_size = BNX2_MAX_TX_DESC_CNT;8311 bnx2_set_rx_ring_size(bp, 255);8312 8313 bp->tx_quick_cons_trip_int = 2;8314 bp->tx_quick_cons_trip = 20;8315 bp->tx_ticks_int = 18;8316 bp->tx_ticks = 80;8317 8318 bp->rx_quick_cons_trip_int = 2;8319 bp->rx_quick_cons_trip = 12;8320 bp->rx_ticks_int = 18;8321 bp->rx_ticks = 18;8322 8323 bp->stats_ticks = USEC_PER_SEC & BNX2_HC_STATS_TICKS_HC_STAT_TICKS;8324 8325 bp->current_interval = BNX2_TIMER_INTERVAL;8326 8327 bp->phy_addr = 1;8328 8329 /* allocate stats_blk */8330 rc = bnx2_alloc_stats_blk(dev);8331 if (rc)8332 goto err_out_unmap;8333 8334 /* Disable WOL support if we are running on a SERDES chip. */8335 if (BNX2_CHIP(bp) == BNX2_CHIP_5709)8336 bnx2_get_5709_media(bp);8337 else if (BNX2_CHIP_BOND(bp) & BNX2_CHIP_BOND_SERDES_BIT)8338 bp->phy_flags |= BNX2_PHY_FLAG_SERDES;8339 8340 bp->phy_port = PORT_TP;8341 if (bp->phy_flags & BNX2_PHY_FLAG_SERDES) {8342 bp->phy_port = PORT_FIBRE;8343 reg = bnx2_shmem_rd(bp, BNX2_SHARED_HW_CFG_CONFIG);8344 if (!(reg & BNX2_SHARED_HW_CFG_GIG_LINK_ON_VAUX)) {8345 bp->flags |= BNX2_FLAG_NO_WOL;8346 bp->wol = 0;8347 }8348 if (BNX2_CHIP(bp) == BNX2_CHIP_5706) {8349 /* Don't do parallel detect on this board because of8350 * some board problems. The link will not go down8351 * if we do parallel detect.8352 */8353 if (pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&8354 pdev->subsystem_device == 0x310c)8355 bp->phy_flags |= BNX2_PHY_FLAG_NO_PARALLEL;8356 } else {8357 bp->phy_addr = 2;8358 if (reg & BNX2_SHARED_HW_CFG_PHY_2_5G)8359 bp->phy_flags |= BNX2_PHY_FLAG_2_5G_CAPABLE;8360 }8361 } else if (BNX2_CHIP(bp) == BNX2_CHIP_5706 ||8362 BNX2_CHIP(bp) == BNX2_CHIP_5708)8363 bp->phy_flags |= BNX2_PHY_FLAG_CRC_FIX;8364 else if (BNX2_CHIP(bp) == BNX2_CHIP_5709 &&8365 (BNX2_CHIP_REV(bp) == BNX2_CHIP_REV_Ax ||8366 BNX2_CHIP_REV(bp) == BNX2_CHIP_REV_Bx))8367 bp->phy_flags |= BNX2_PHY_FLAG_DIS_EARLY_DAC;8368 8369 bnx2_init_fw_cap(bp);8370 8371 if ((BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5708_A0) ||8372 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5708_B0) ||8373 (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5708_B1) ||8374 !(BNX2_RD(bp, BNX2_PCI_CONFIG_3) & BNX2_PCI_CONFIG_3_VAUX_PRESET)) {8375 bp->flags |= BNX2_FLAG_NO_WOL;8376 bp->wol = 0;8377 }8378 8379 if (bp->flags & BNX2_FLAG_NO_WOL)8380 device_set_wakeup_capable(&bp->pdev->dev, false);8381 else8382 device_set_wakeup_enable(&bp->pdev->dev, bp->wol);8383 8384 if (BNX2_CHIP_ID(bp) == BNX2_CHIP_ID_5706_A0) {8385 bp->tx_quick_cons_trip_int =8386 bp->tx_quick_cons_trip;8387 bp->tx_ticks_int = bp->tx_ticks;8388 bp->rx_quick_cons_trip_int =8389 bp->rx_quick_cons_trip;8390 bp->rx_ticks_int = bp->rx_ticks;8391 bp->comp_prod_trip_int = bp->comp_prod_trip;8392 bp->com_ticks_int = bp->com_ticks;8393 bp->cmd_ticks_int = bp->cmd_ticks;8394 }8395 8396 /* Disable MSI on 5706 if AMD 8132 bridge is found.8397 *8398 * MSI is defined to be 32-bit write. The 5706 does 64-bit MSI writes8399 * with byte enables disabled on the unused 32-bit word. This is legal8400 * but causes problems on the AMD 8132 which will eventually stop8401 * responding after a while.8402 *8403 * AMD believes this incompatibility is unique to the 5706, and8404 * prefers to locally disable MSI rather than globally disabling it.8405 */8406 if (BNX2_CHIP(bp) == BNX2_CHIP_5706 && disable_msi == 0) {8407 struct pci_dev *amd_8132 = NULL;8408 8409 while ((amd_8132 = pci_get_device(PCI_VENDOR_ID_AMD,8410 PCI_DEVICE_ID_AMD_8132_BRIDGE,8411 amd_8132))) {8412 8413 if (amd_8132->revision >= 0x10 &&8414 amd_8132->revision <= 0x13) {8415 disable_msi = 1;8416 pci_dev_put(amd_8132);8417 break;8418 }8419 }8420 }8421 8422 bnx2_set_default_link(bp);8423 bp->req_flow_ctrl = FLOW_CTRL_RX | FLOW_CTRL_TX;8424 8425 timer_setup(&bp->timer, bnx2_timer, 0);8426 bp->timer.expires = RUN_AT(BNX2_TIMER_INTERVAL);8427 8428#ifdef BCM_CNIC8429 if (bnx2_shmem_rd(bp, BNX2_ISCSI_INITIATOR) & BNX2_ISCSI_INITIATOR_EN)8430 bp->cnic_eth_dev.max_iscsi_conn =8431 (bnx2_shmem_rd(bp, BNX2_ISCSI_MAX_CONN) &8432 BNX2_ISCSI_MAX_CONN_MASK) >> BNX2_ISCSI_MAX_CONN_SHIFT;8433 bp->cnic_probe = bnx2_cnic_probe;8434#endif8435 pci_save_state(pdev);8436 8437 return 0;8438 8439err_out_unmap:8440 pci_iounmap(pdev, bp->regview);8441 bp->regview = NULL;8442 8443err_out_release:8444 pci_release_regions(pdev);8445 8446err_out_disable:8447 pci_disable_device(pdev);8448 8449err_out:8450 kfree(bp->temp_stats_blk);8451 8452 return rc;8453}8454 8455static char *8456bnx2_bus_string(struct bnx2 *bp, char *str)8457{8458 char *s = str;8459 8460 if (bp->flags & BNX2_FLAG_PCIE) {8461 s += sprintf(s, "PCI Express");8462 } else {8463 s += sprintf(s, "PCI");8464 if (bp->flags & BNX2_FLAG_PCIX)8465 s += sprintf(s, "-X");8466 if (bp->flags & BNX2_FLAG_PCI_32BIT)8467 s += sprintf(s, " 32-bit");8468 else8469 s += sprintf(s, " 64-bit");8470 s += sprintf(s, " %dMHz", bp->bus_speed_mhz);8471 }8472 return str;8473}8474 8475static void8476bnx2_del_napi(struct bnx2 *bp)8477{8478 int i;8479 8480 for (i = 0; i < bp->irq_nvecs; i++)8481 netif_napi_del(&bp->bnx2_napi[i].napi);8482}8483 8484static void8485bnx2_init_napi(struct bnx2 *bp)8486{8487 int i;8488 8489 for (i = 0; i < bp->irq_nvecs; i++) {8490 struct bnx2_napi *bnapi = &bp->bnx2_napi[i];8491 int (*poll)(struct napi_struct *, int);8492 8493 if (i == 0)8494 poll = bnx2_poll;8495 else8496 poll = bnx2_poll_msix;8497 8498 netif_napi_add(bp->dev, &bp->bnx2_napi[i].napi, poll);8499 bnapi->bp = bp;8500 }8501}8502 8503static const struct net_device_ops bnx2_netdev_ops = {8504 .ndo_open = bnx2_open,8505 .ndo_start_xmit = bnx2_start_xmit,8506 .ndo_stop = bnx2_close,8507 .ndo_get_stats64 = bnx2_get_stats64,8508 .ndo_set_rx_mode = bnx2_set_rx_mode,8509 .ndo_eth_ioctl = bnx2_ioctl,8510 .ndo_validate_addr = eth_validate_addr,8511 .ndo_set_mac_address = bnx2_change_mac_addr,8512 .ndo_change_mtu = bnx2_change_mtu,8513 .ndo_set_features = bnx2_set_features,8514 .ndo_tx_timeout = bnx2_tx_timeout,8515#ifdef CONFIG_NET_POLL_CONTROLLER8516 .ndo_poll_controller = poll_bnx2,8517#endif8518};8519 8520static int8521bnx2_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)8522{8523 struct net_device *dev;8524 struct bnx2 *bp;8525 int rc;8526 char str[40];8527 8528 /* dev zeroed in init_etherdev */8529 dev = alloc_etherdev_mq(sizeof(*bp), TX_MAX_RINGS);8530 if (!dev)8531 return -ENOMEM;8532 8533 rc = bnx2_init_board(pdev, dev);8534 if (rc < 0)8535 goto err_free;8536 8537 dev->netdev_ops = &bnx2_netdev_ops;8538 dev->watchdog_timeo = TX_TIMEOUT;8539 dev->ethtool_ops = &bnx2_ethtool_ops;8540 8541 bp = netdev_priv(dev);8542 8543 pci_set_drvdata(pdev, dev);8544 8545 /*8546 * In-flight DMA from 1st kernel could continue going in kdump kernel.8547 * New io-page table has been created before bnx2 does reset at open stage.8548 * We have to wait for the in-flight DMA to complete to avoid it look up8549 * into the newly created io-page table.8550 */8551 if (is_kdump_kernel())8552 bnx2_wait_dma_complete(bp);8553 8554 eth_hw_addr_set(dev, bp->mac_addr);8555 8556 dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_SG |8557 NETIF_F_TSO | NETIF_F_TSO_ECN |8558 NETIF_F_RXHASH | NETIF_F_RXCSUM;8559 8560 if (BNX2_CHIP(bp) == BNX2_CHIP_5709)8561 dev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6;8562 8563 dev->vlan_features = dev->hw_features;8564 dev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX;8565 dev->features |= dev->hw_features;8566 dev->priv_flags |= IFF_UNICAST_FLT;8567 dev->min_mtu = MIN_ETHERNET_PACKET_SIZE;8568 dev->max_mtu = MAX_ETHERNET_JUMBO_PACKET_SIZE;8569 8570 if (!(bp->flags & BNX2_FLAG_CAN_KEEP_VLAN))8571 dev->hw_features &= ~NETIF_F_HW_VLAN_CTAG_RX;8572 8573 if ((rc = register_netdev(dev))) {8574 dev_err(&pdev->dev, "Cannot register net device\n");8575 goto error;8576 }8577 8578 netdev_info(dev, "%s (%c%d) %s found at mem %lx, IRQ %d, "8579 "node addr %pM\n", board_info[ent->driver_data].name,8580 ((BNX2_CHIP_ID(bp) & 0xf000) >> 12) + 'A',8581 ((BNX2_CHIP_ID(bp) & 0x0ff0) >> 4),8582 bnx2_bus_string(bp, str), (long)pci_resource_start(pdev, 0),8583 pdev->irq, dev->dev_addr);8584 8585 return 0;8586 8587error:8588 pci_iounmap(pdev, bp->regview);8589 pci_release_regions(pdev);8590 pci_disable_device(pdev);8591err_free:8592 bnx2_free_stats_blk(dev);8593 free_netdev(dev);8594 return rc;8595}8596 8597static void8598bnx2_remove_one(struct pci_dev *pdev)8599{8600 struct net_device *dev = pci_get_drvdata(pdev);8601 struct bnx2 *bp = netdev_priv(dev);8602 8603 unregister_netdev(dev);8604 8605 del_timer_sync(&bp->timer);8606 cancel_work_sync(&bp->reset_task);8607 8608 pci_iounmap(bp->pdev, bp->regview);8609 8610 bnx2_free_stats_blk(dev);8611 kfree(bp->temp_stats_blk);8612 8613 bnx2_release_firmware(bp);8614 8615 free_netdev(dev);8616 8617 pci_release_regions(pdev);8618 pci_disable_device(pdev);8619}8620 8621#ifdef CONFIG_PM_SLEEP8622static int8623bnx2_suspend(struct device *device)8624{8625 struct net_device *dev = dev_get_drvdata(device);8626 struct bnx2 *bp = netdev_priv(dev);8627 8628 if (netif_running(dev)) {8629 cancel_work_sync(&bp->reset_task);8630 bnx2_netif_stop(bp, true);8631 netif_device_detach(dev);8632 del_timer_sync(&bp->timer);8633 bnx2_shutdown_chip(bp);8634 __bnx2_free_irq(bp);8635 bnx2_free_skbs(bp);8636 }8637 bnx2_setup_wol(bp);8638 return 0;8639}8640 8641static int8642bnx2_resume(struct device *device)8643{8644 struct net_device *dev = dev_get_drvdata(device);8645 struct bnx2 *bp = netdev_priv(dev);8646 8647 if (!netif_running(dev))8648 return 0;8649 8650 bnx2_set_power_state(bp, PCI_D0);8651 netif_device_attach(dev);8652 bnx2_request_irq(bp);8653 bnx2_init_nic(bp, 1);8654 bnx2_netif_start(bp, true);8655 return 0;8656}8657 8658static SIMPLE_DEV_PM_OPS(bnx2_pm_ops, bnx2_suspend, bnx2_resume);8659#define BNX2_PM_OPS (&bnx2_pm_ops)8660 8661#else8662 8663#define BNX2_PM_OPS NULL8664 8665#endif /* CONFIG_PM_SLEEP */8666/**8667 * bnx2_io_error_detected - called when PCI error is detected8668 * @pdev: Pointer to PCI device8669 * @state: The current pci connection state8670 *8671 * This function is called after a PCI bus error affecting8672 * this device has been detected.8673 */8674static pci_ers_result_t bnx2_io_error_detected(struct pci_dev *pdev,8675 pci_channel_state_t state)8676{8677 struct net_device *dev = pci_get_drvdata(pdev);8678 struct bnx2 *bp = netdev_priv(dev);8679 8680 rtnl_lock();8681 netif_device_detach(dev);8682 8683 if (state == pci_channel_io_perm_failure) {8684 rtnl_unlock();8685 return PCI_ERS_RESULT_DISCONNECT;8686 }8687 8688 if (netif_running(dev)) {8689 bnx2_netif_stop(bp, true);8690 del_timer_sync(&bp->timer);8691 bnx2_reset_nic(bp, BNX2_DRV_MSG_CODE_RESET);8692 }8693 8694 pci_disable_device(pdev);8695 rtnl_unlock();8696 8697 /* Request a slot slot reset. */8698 return PCI_ERS_RESULT_NEED_RESET;8699}8700 8701/**8702 * bnx2_io_slot_reset - called after the pci bus has been reset.8703 * @pdev: Pointer to PCI device8704 *8705 * Restart the card from scratch, as if from a cold-boot.8706 */8707static pci_ers_result_t bnx2_io_slot_reset(struct pci_dev *pdev)8708{8709 struct net_device *dev = pci_get_drvdata(pdev);8710 struct bnx2 *bp = netdev_priv(dev);8711 pci_ers_result_t result = PCI_ERS_RESULT_DISCONNECT;8712 int err = 0;8713 8714 rtnl_lock();8715 if (pci_enable_device(pdev)) {8716 dev_err(&pdev->dev,8717 "Cannot re-enable PCI device after reset\n");8718 } else {8719 pci_set_master(pdev);8720 pci_restore_state(pdev);8721 pci_save_state(pdev);8722 8723 if (netif_running(dev))8724 err = bnx2_init_nic(bp, 1);8725 8726 if (!err)8727 result = PCI_ERS_RESULT_RECOVERED;8728 }8729 8730 if (result != PCI_ERS_RESULT_RECOVERED && netif_running(dev)) {8731 bnx2_napi_enable(bp);8732 dev_close(dev);8733 }8734 rtnl_unlock();8735 8736 return result;8737}8738 8739/**8740 * bnx2_io_resume - called when traffic can start flowing again.8741 * @pdev: Pointer to PCI device8742 *8743 * This callback is called when the error recovery driver tells us that8744 * its OK to resume normal operation.8745 */8746static void bnx2_io_resume(struct pci_dev *pdev)8747{8748 struct net_device *dev = pci_get_drvdata(pdev);8749 struct bnx2 *bp = netdev_priv(dev);8750 8751 rtnl_lock();8752 if (netif_running(dev))8753 bnx2_netif_start(bp, true);8754 8755 netif_device_attach(dev);8756 rtnl_unlock();8757}8758 8759static void bnx2_shutdown(struct pci_dev *pdev)8760{8761 struct net_device *dev = pci_get_drvdata(pdev);8762 struct bnx2 *bp;8763 8764 if (!dev)8765 return;8766 8767 bp = netdev_priv(dev);8768 if (!bp)8769 return;8770 8771 rtnl_lock();8772 if (netif_running(dev))8773 dev_close(bp->dev);8774 8775 if (system_state == SYSTEM_POWER_OFF)8776 bnx2_set_power_state(bp, PCI_D3hot);8777 8778 rtnl_unlock();8779}8780 8781static const struct pci_error_handlers bnx2_err_handler = {8782 .error_detected = bnx2_io_error_detected,8783 .slot_reset = bnx2_io_slot_reset,8784 .resume = bnx2_io_resume,8785};8786 8787static struct pci_driver bnx2_pci_driver = {8788 .name = DRV_MODULE_NAME,8789 .id_table = bnx2_pci_tbl,8790 .probe = bnx2_init_one,8791 .remove = bnx2_remove_one,8792 .driver.pm = BNX2_PM_OPS,8793 .err_handler = &bnx2_err_handler,8794 .shutdown = bnx2_shutdown,8795};8796 8797module_pci_driver(bnx2_pci_driver);8798