drivers/net/qlcnic/qlcnic_main.c

   1 /*
   2  * Copyright (C) 2009 - QLogic Corporation.
   3  * All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * as published by the Free Software Foundation; either version 2
   8  * of the License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  18  * MA  02111-1307, USA.
  19  *
  20  * The full GNU General Public License is included in this distribution
  21  * in the file called "COPYING".
  22  *
  23  */
  24
  25 #include <linux/vmalloc.h>
  26 #include <linux/interrupt.h>
  27
  28 #include "qlcnic.h"
  29
  30 #include <linux/dma-mapping.h>
  31 #include <linux/if_vlan.h>
  32 #include <net/ip.h>
  33 #include <linux/ipv6.h>
  34 #include <linux/inetdevice.h>
  35 #include <linux/sysfs.h>
  36
  37 MODULE_DESCRIPTION("QLogic 10 GbE Converged Ethernet Driver");
  38 MODULE_LICENSE("GPL");
  39 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
  40 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
  41
  42 char qlcnic_driver_name[] = "qlcnic";
  43 static const char qlcnic_driver_string[] = "QLogic Converged Ethernet Driver v"
  44     QLCNIC_LINUX_VERSIONID;
  45
  46 static int port_mode = QLCNIC_PORT_MODE_AUTO_NEG;
  47
  48 /* Default to restricted 1G auto-neg mode */
  49 static int wol_port_mode = 5;
  50
  51 static int use_msi = 1;
  52 module_param(use_msi, int, 0644);
  53 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled");
  54
  55 static int use_msi_x = 1;
  56 module_param(use_msi_x, int, 0644);
  57 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled");
  58
  59 static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
  60 module_param(auto_fw_reset, int, 0644);
  61 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled");
  62
  63 static int __devinit qlcnic_probe(struct pci_dev *pdev,
  64                 const struct pci_device_id *ent);
  65 static void __devexit qlcnic_remove(struct pci_dev *pdev);
  66 static int qlcnic_open(struct net_device *netdev);
  67 static int qlcnic_close(struct net_device *netdev);
  68 static netdev_tx_t qlcnic_xmit_frame(struct sk_buff *,
  69                                                struct net_device *);
  70 static void qlcnic_tx_timeout(struct net_device *netdev);
  71 static void qlcnic_tx_timeout_task(struct work_struct *work);
  72 static void qlcnic_attach_work(struct work_struct *work);
  73 static void qlcnic_fwinit_work(struct work_struct *work);
  74 static void qlcnic_fw_poll_work(struct work_struct *work);
  75 static void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
  76                 work_func_t func, int delay);
  77 static void qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter);
  78 static int qlcnic_poll(struct napi_struct *napi, int budget);
  79 #ifdef CONFIG_NET_POLL_CONTROLLER
  80 static void qlcnic_poll_controller(struct net_device *netdev);
  81 #endif
  82
  83 static void qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter);
  84 static void qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter);
  85 static void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter);
  86 static void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter);
  87
  88 static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter);
  89 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
  90
  91 static irqreturn_t qlcnic_intr(int irq, void *data);
  92 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
  93 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
  94
  95 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
  96 static void qlcnic_config_indev_addr(struct net_device *dev, unsigned long);
  97
  98 /*  PCI Device ID Table  */
  99 #define ENTRY(device) \
 100         {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
 101         .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
 102
 103 #define PCI_DEVICE_ID_QLOGIC_QLE824X  0x8020
 104
 105 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
 106         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
 107         {0,}
 108 };
 109
 110 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
 111
 112
 113 void
 114 qlcnic_update_cmd_producer(struct qlcnic_adapter *adapter,
 115                 struct qlcnic_host_tx_ring *tx_ring)
 116 {
 117         writel(tx_ring->producer, tx_ring->crb_cmd_producer);
 118
 119         if (qlcnic_tx_avail(tx_ring) <= TX_STOP_THRESH) {
 120                 netif_stop_queue(adapter->netdev);
 121                 smp_mb();
 122         }
 123 }
 124
 125 static const u32 msi_tgt_status[8] = {
 126         ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
 127         ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
 128         ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
 129         ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
 130 };
 131
 132 static const
 133 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
 134
 135 static inline void qlcnic_disable_int(struct qlcnic_host_sds_ring *sds_ring)
 136 {
 137         writel(0, sds_ring->crb_intr_mask);
 138 }
 139
 140 static inline void qlcnic_enable_int(struct qlcnic_host_sds_ring *sds_ring)
 141 {
 142         struct qlcnic_adapter *adapter = sds_ring->adapter;
 143
 144         writel(0x1, sds_ring->crb_intr_mask);
 145
 146         if (!QLCNIC_IS_MSI_FAMILY(adapter))
 147                 writel(0xfbff, adapter->tgt_mask_reg);
 148 }
 149
 150 static int
 151 qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
 152 {
 153         int size = sizeof(struct qlcnic_host_sds_ring) * count;
 154
 155         recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
 156
 157         return (recv_ctx->sds_rings == NULL);
 158 }
 159
 160 static void
 161 qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
 162 {
 163         if (recv_ctx->sds_rings != NULL)
 164                 kfree(recv_ctx->sds_rings);
 165
 166         recv_ctx->sds_rings = NULL;
 167 }
 168
 169 static int
 170 qlcnic_napi_add(struct qlcnic_adapter *adapter, struct net_device *netdev)
 171 {
 172         int ring;
 173         struct qlcnic_host_sds_ring *sds_ring;
 174         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
 175
 176         if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
 177                 return -ENOMEM;
 178
 179         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 180                 sds_ring = &recv_ctx->sds_rings[ring];
 181                 netif_napi_add(netdev, &sds_ring->napi,
 182                                 qlcnic_poll, QLCNIC_NETDEV_WEIGHT);
 183         }
 184
 185         return 0;
 186 }
 187
 188 static void
 189 qlcnic_napi_del(struct qlcnic_adapter *adapter)
 190 {
 191         int ring;
 192         struct qlcnic_host_sds_ring *sds_ring;
 193         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
 194
 195         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 196                 sds_ring = &recv_ctx->sds_rings[ring];
 197                 netif_napi_del(&sds_ring->napi);
 198         }
 199
 200         qlcnic_free_sds_rings(&adapter->recv_ctx);
 201 }
 202
 203 static void
 204 qlcnic_napi_enable(struct qlcnic_adapter *adapter)
 205 {
 206         int ring;
 207         struct qlcnic_host_sds_ring *sds_ring;
 208         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
 209
 210         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 211                 sds_ring = &recv_ctx->sds_rings[ring];
 212                 napi_enable(&sds_ring->napi);
 213                 qlcnic_enable_int(sds_ring);
 214         }
 215 }
 216
 217 static void
 218 qlcnic_napi_disable(struct qlcnic_adapter *adapter)
 219 {
 220         int ring;
 221         struct qlcnic_host_sds_ring *sds_ring;
 222         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
 223
 224         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 225                 sds_ring = &recv_ctx->sds_rings[ring];
 226                 qlcnic_disable_int(sds_ring);
 227                 napi_synchronize(&sds_ring->napi);
 228                 napi_disable(&sds_ring->napi);
 229         }
 230 }
 231
 232 static void qlcnic_clear_stats(struct qlcnic_adapter *adapter)
 233 {
 234         memset(&adapter->stats, 0, sizeof(adapter->stats));
 235         return;
 236 }
 237
 238 static int qlcnic_set_dma_mask(struct qlcnic_adapter *adapter)
 239 {
 240         struct pci_dev *pdev = adapter->pdev;
 241         u64 mask, cmask;
 242
 243         adapter->pci_using_dac = 0;
 244
 245         mask = DMA_BIT_MASK(39);
 246         cmask = mask;
 247
 248         if (pci_set_dma_mask(pdev, mask) == 0 &&
 249                         pci_set_consistent_dma_mask(pdev, cmask) == 0) {
 250                 adapter->pci_using_dac = 1;
 251                 return 0;
 252         }
 253
 254         return -EIO;
 255 }
 256
 257 /* Update addressable range if firmware supports it */
 258 static int
 259 qlcnic_update_dma_mask(struct qlcnic_adapter *adapter)
 260 {
 261         int change, shift, err;
 262         u64 mask, old_mask, old_cmask;
 263         struct pci_dev *pdev = adapter->pdev;
 264
 265         change = 0;
 266
 267         shift = QLCRD32(adapter, CRB_DMA_SHIFT);
 268         if (shift > 32)
 269                 return 0;
 270
 271         if (shift > 9)
 272                 change = 1;
 273
 274         if (change) {
 275                 old_mask = pdev->dma_mask;
 276                 old_cmask = pdev->dev.coherent_dma_mask;
 277
 278                 mask = DMA_BIT_MASK(32+shift);
 279
 280                 err = pci_set_dma_mask(pdev, mask);
 281                 if (err)
 282                         goto err_out;
 283
 284                 err = pci_set_consistent_dma_mask(pdev, mask);
 285                 if (err)
 286                         goto err_out;
 287                 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
 288         }
 289
 290         return 0;
 291
 292 err_out:
 293         pci_set_dma_mask(pdev, old_mask);
 294         pci_set_consistent_dma_mask(pdev, old_cmask);
 295         return err;
 296 }
 297
 298 static void qlcnic_set_port_mode(struct qlcnic_adapter *adapter)
 299 {
 300         u32 val, data;
 301
 302         val = adapter->ahw.board_type;
 303         if ((val == QLCNIC_BRDTYPE_P3_HMEZ) ||
 304                 (val == QLCNIC_BRDTYPE_P3_XG_LOM)) {
 305                 if (port_mode == QLCNIC_PORT_MODE_802_3_AP) {
 306                         data = QLCNIC_PORT_MODE_802_3_AP;
 307                         QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
 308                 } else if (port_mode == QLCNIC_PORT_MODE_XG) {
 309                         data = QLCNIC_PORT_MODE_XG;
 310                         QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
 311                 } else if (port_mode == QLCNIC_PORT_MODE_AUTO_NEG_1G) {
 312                         data = QLCNIC_PORT_MODE_AUTO_NEG_1G;
 313                         QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
 314                 } else if (port_mode == QLCNIC_PORT_MODE_AUTO_NEG_XG) {
 315                         data = QLCNIC_PORT_MODE_AUTO_NEG_XG;
 316                         QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
 317                 } else {
 318                         data = QLCNIC_PORT_MODE_AUTO_NEG;
 319                         QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
 320                 }
 321
 322                 if ((wol_port_mode != QLCNIC_PORT_MODE_802_3_AP) &&
 323                         (wol_port_mode != QLCNIC_PORT_MODE_XG) &&
 324                         (wol_port_mode != QLCNIC_PORT_MODE_AUTO_NEG_1G) &&
 325                         (wol_port_mode != QLCNIC_PORT_MODE_AUTO_NEG_XG)) {
 326                         wol_port_mode = QLCNIC_PORT_MODE_AUTO_NEG;
 327                 }
 328                 QLCWR32(adapter, QLCNIC_WOL_PORT_MODE, wol_port_mode);
 329         }
 330 }
 331
 332 static void qlcnic_set_msix_bit(struct pci_dev *pdev, int enable)
 333 {
 334         u32 control;
 335         int pos;
 336
 337         pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
 338         if (pos) {
 339                 pci_read_config_dword(pdev, pos, &control);
 340                 if (enable)
 341                         control |= PCI_MSIX_FLAGS_ENABLE;
 342                 else
 343                         control = 0;
 344                 pci_write_config_dword(pdev, pos, control);
 345         }
 346 }
 347
 348 static void qlcnic_init_msix_entries(struct qlcnic_adapter *adapter, int count)
 349 {
 350         int i;
 351
 352         for (i = 0; i < count; i++)
 353                 adapter->msix_entries[i].entry = i;
 354 }
 355
 356 static int
 357 qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
 358 {
 359         int i;
 360         unsigned char *p;
 361         u64 mac_addr;
 362         struct net_device *netdev = adapter->netdev;
 363         struct pci_dev *pdev = adapter->pdev;
 364
 365         if (qlcnic_get_mac_addr(adapter, &mac_addr) != 0)
 366                 return -EIO;
 367
 368         p = (unsigned char *)&mac_addr;
 369         for (i = 0; i < 6; i++)
 370                 netdev->dev_addr[i] = *(p + 5 - i);
 371
 372         memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
 373         memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
 374
 375         /* set station address */
 376
 377         if (!is_valid_ether_addr(netdev->perm_addr))
 378                 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
 379                                         netdev->dev_addr);
 380
 381         return 0;
 382 }
 383
 384 static int qlcnic_set_mac(struct net_device *netdev, void *p)
 385 {
 386         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 387         struct sockaddr *addr = p;
 388
 389         if (!is_valid_ether_addr(addr->sa_data))
 390                 return -EINVAL;
 391
 392         if (netif_running(netdev)) {
 393                 netif_device_detach(netdev);
 394                 qlcnic_napi_disable(adapter);
 395         }
 396
 397         memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
 398         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 399         qlcnic_set_multi(adapter->netdev);
 400
 401         if (netif_running(netdev)) {
 402                 netif_device_attach(netdev);
 403                 qlcnic_napi_enable(adapter);
 404         }
 405         return 0;
 406 }
 407
 408 static const struct net_device_ops qlcnic_netdev_ops = {
 409         .ndo_open          = qlcnic_open,
 410         .ndo_stop          = qlcnic_close,
 411         .ndo_start_xmit    = qlcnic_xmit_frame,
 412         .ndo_get_stats     = qlcnic_get_stats,
 413         .ndo_validate_addr = eth_validate_addr,
 414         .ndo_set_multicast_list = qlcnic_set_multi,
 415         .ndo_set_mac_address    = qlcnic_set_mac,
 416         .ndo_change_mtu    = qlcnic_change_mtu,
 417         .ndo_tx_timeout    = qlcnic_tx_timeout,
 418 #ifdef CONFIG_NET_POLL_CONTROLLER
 419         .ndo_poll_controller = qlcnic_poll_controller,
 420 #endif
 421 };
 422
 423 static void
 424 qlcnic_setup_intr(struct qlcnic_adapter *adapter)
 425 {
 426         const struct qlcnic_legacy_intr_set *legacy_intrp;
 427         struct pci_dev *pdev = adapter->pdev;
 428         int err, num_msix;
 429
 430         if (adapter->rss_supported) {
 431                 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
 432                         MSIX_ENTRIES_PER_ADAPTER : 2;
 433         } else
 434                 num_msix = 1;
 435
 436         adapter->max_sds_rings = 1;
 437
 438         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 439
 440         legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
 441
 442         adapter->int_vec_bit = legacy_intrp->int_vec_bit;
 443         adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
 444                         legacy_intrp->tgt_status_reg);
 445         adapter->tgt_mask_reg = qlcnic_get_ioaddr(adapter,
 446                         legacy_intrp->tgt_mask_reg);
 447         adapter->isr_int_vec = qlcnic_get_ioaddr(adapter, ISR_INT_VECTOR);
 448
 449         adapter->crb_int_state_reg = qlcnic_get_ioaddr(adapter,
 450                         ISR_INT_STATE_REG);
 451
 452         qlcnic_set_msix_bit(pdev, 0);
 453
 454         if (adapter->msix_supported) {
 455
 456                 qlcnic_init_msix_entries(adapter, num_msix);
 457                 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
 458                 if (err == 0) {
 459                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 460                         qlcnic_set_msix_bit(pdev, 1);
 461
 462                         if (adapter->rss_supported)
 463                                 adapter->max_sds_rings = num_msix;
 464
 465                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 466                         return;
 467                 }
 468
 469                 if (err > 0)
 470                         pci_disable_msix(pdev);
 471
 472                 /* fall through for msi */
 473         }
 474
 475         if (use_msi && !pci_enable_msi(pdev)) {
 476                 adapter->flags |= QLCNIC_MSI_ENABLED;
 477                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
 478                                 msi_tgt_status[adapter->ahw.pci_func]);
 479                 dev_info(&pdev->dev, "using msi interrupts\n");
 480                 adapter->msix_entries[0].vector = pdev->irq;
 481                 return;
 482         }
 483
 484         dev_info(&pdev->dev, "using legacy interrupts\n");
 485         adapter->msix_entries[0].vector = pdev->irq;
 486 }
 487
 488 static void
 489 qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 490 {
 491         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 492                 pci_disable_msix(adapter->pdev);
 493         if (adapter->flags & QLCNIC_MSI_ENABLED)
 494                 pci_disable_msi(adapter->pdev);
 495 }
 496
 497 static void
 498 qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter)
 499 {
 500         if (adapter->ahw.pci_base0 != NULL)
 501                 iounmap(adapter->ahw.pci_base0);
 502 }
 503
 504 static int
 505 qlcnic_setup_pci_map(struct qlcnic_adapter *adapter)
 506 {
 507         void __iomem *mem_ptr0 = NULL;
 508         resource_size_t mem_base;
 509         unsigned long mem_len, pci_len0 = 0;
 510
 511         struct pci_dev *pdev = adapter->pdev;
 512         int pci_func = adapter->ahw.pci_func;
 513
 514         /*
 515          * Set the CRB window to invalid. If any register in window 0 is
 516          * accessed it should set the window to 0 and then reset it to 1.
 517          */
 518         adapter->ahw.crb_win = -1;
 519         adapter->ahw.ocm_win = -1;
 520
 521         /* remap phys address */
 522         mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
 523         mem_len = pci_resource_len(pdev, 0);
 524
 525         if (mem_len == QLCNIC_PCI_2MB_SIZE) {
 526
 527                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
 528                 if (mem_ptr0 == NULL) {
 529                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
 530                         return -EIO;
 531                 }
 532                 pci_len0 = mem_len;
 533         } else {
 534                 return -EIO;
 535         }
 536
 537         dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
 538
 539         adapter->ahw.pci_base0 = mem_ptr0;
 540         adapter->ahw.pci_len0 = pci_len0;
 541
 542         adapter->ahw.ocm_win_crb = qlcnic_get_ioaddr(adapter,
 543                 QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
 544
 545         return 0;
 546 }
 547
 548 static void get_brd_name(struct qlcnic_adapter *adapter, char *name)
 549 {
 550         struct pci_dev *pdev = adapter->pdev;
 551         int i, found = 0;
 552
 553         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
 554                 if (qlcnic_boards[i].vendor == pdev->vendor &&
 555                         qlcnic_boards[i].device == pdev->device &&
 556                         qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
 557                         qlcnic_boards[i].sub_device == pdev->subsystem_device) {
 558                                 strcpy(name, qlcnic_boards[i].short_name);
 559                                 found = 1;
 560                                 break;
 561                 }
 562
 563         }
 564
 565         if (!found)
 566                 name = "Unknown";
 567 }
 568
 569 static void
 570 qlcnic_check_options(struct qlcnic_adapter *adapter)
 571 {
 572         u32 fw_major, fw_minor, fw_build;
 573         char brd_name[QLCNIC_MAX_BOARD_NAME_LEN];
 574         char serial_num[32];
 575         int i, offset, val;
 576         int *ptr32;
 577         struct pci_dev *pdev = adapter->pdev;
 578
 579         adapter->driver_mismatch = 0;
 580
 581         ptr32 = (int *)&serial_num;
 582         offset = QLCNIC_FW_SERIAL_NUM_OFFSET;
 583         for (i = 0; i < 8; i++) {
 584                 if (qlcnic_rom_fast_read(adapter, offset, &val) == -1) {
 585                         dev_err(&pdev->dev, "error reading board info\n");
 586                         adapter->driver_mismatch = 1;
 587                         return;
 588                 }
 589                 ptr32[i] = cpu_to_le32(val);
 590                 offset += sizeof(u32);
 591         }
 592
 593         fw_major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
 594         fw_minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
 595         fw_build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
 596
 597         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
 598
 599         if (adapter->portnum == 0) {
 600                 get_brd_name(adapter, brd_name);
 601
 602                 pr_info("%s: %s Board Chip rev 0x%x\n",
 603                                 module_name(THIS_MODULE),
 604                                 brd_name, adapter->ahw.revision_id);
 605         }
 606
 607         if (adapter->fw_version < QLCNIC_VERSION_CODE(3, 4, 216)) {
 608                 adapter->driver_mismatch = 1;
 609                 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
 610                                 fw_major, fw_minor, fw_build);
 611                 return;
 612         }
 613
 614         i = QLCRD32(adapter, QLCNIC_SRE_MISC);
 615         adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
 616
 617         dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n",
 618                         fw_major, fw_minor, fw_build,
 619                         adapter->ahw.cut_through ? "cut-through" : "legacy");
 620
 621         if (adapter->fw_version >= QLCNIC_VERSION_CODE(4, 0, 222))
 622                 adapter->capabilities = QLCRD32(adapter, CRB_FW_CAPABILITIES_1);
 623
 624         adapter->flags &= ~QLCNIC_LRO_ENABLED;
 625
 626         if (adapter->ahw.port_type == QLCNIC_XGBE) {
 627                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
 628                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 629         } else if (adapter->ahw.port_type == QLCNIC_GBE) {
 630                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
 631                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 632         }
 633
 634         adapter->msix_supported = !!use_msi_x;
 635         adapter->rss_supported = !!use_msi_x;
 636
 637         adapter->num_txd = MAX_CMD_DESCRIPTORS;
 638
 639         adapter->num_lro_rxd = 0;
 640         adapter->max_rds_rings = 2;
 641 }
 642
 643 static int
 644 qlcnic_start_firmware(struct qlcnic_adapter *adapter)
 645 {
 646         int val, err, first_boot;
 647
 648         err = qlcnic_set_dma_mask(adapter);
 649         if (err)
 650                 return err;
 651
 652         if (!qlcnic_can_start_firmware(adapter))
 653                 goto wait_init;
 654
 655         first_boot = QLCRD32(adapter, QLCNIC_CAM_RAM(0x1fc));
 656         if (first_boot == 0x55555555)
 657                 /* This is the first boot after power up */
 658                 QLCWR32(adapter, QLCNIC_CAM_RAM(0x1fc), QLCNIC_BDINFO_MAGIC);
 659
 660         qlcnic_request_firmware(adapter);
 661
 662         err = qlcnic_need_fw_reset(adapter);
 663         if (err < 0)
 664                 goto err_out;
 665         if (err == 0)
 666                 goto wait_init;
 667
 668         if (first_boot != 0x55555555) {
 669                 QLCWR32(adapter, CRB_CMDPEG_STATE, 0);
 670                 qlcnic_pinit_from_rom(adapter);
 671                 msleep(1);
 672         }
 673
 674         QLCWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
 675         QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS1, 0);
 676         QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS2, 0);
 677
 678         qlcnic_set_port_mode(adapter);
 679
 680         err = qlcnic_load_firmware(adapter);
 681         if (err)
 682                 goto err_out;
 683
 684         qlcnic_release_firmware(adapter);
 685
 686         val = (_QLCNIC_LINUX_MAJOR << 16)
 687                 | ((_QLCNIC_LINUX_MINOR << 8))
 688                 | (_QLCNIC_LINUX_SUBVERSION);
 689         QLCWR32(adapter, CRB_DRIVER_VERSION, val);
 690
 691 wait_init:
 692         /* Handshake with the card before we register the devices. */
 693         err = qlcnic_phantom_init(adapter);
 694         if (err)
 695                 goto err_out;
 696
 697         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
 698
 699         qlcnic_update_dma_mask(adapter);
 700
 701         qlcnic_check_options(adapter);
 702
 703         adapter->need_fw_reset = 0;
 704
 705         /* fall through and release firmware */
 706
 707 err_out:
 708         qlcnic_release_firmware(adapter);
 709         return err;
 710 }
 711
 712 static int
 713 qlcnic_request_irq(struct qlcnic_adapter *adapter)
 714 {
 715         irq_handler_t handler;
 716         struct qlcnic_host_sds_ring *sds_ring;
 717         int err, ring;
 718
 719         unsigned long flags = 0;
 720         struct net_device *netdev = adapter->netdev;
 721         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
 722
 723         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 724                 handler = qlcnic_msix_intr;
 725         else if (adapter->flags & QLCNIC_MSI_ENABLED)
 726                 handler = qlcnic_msi_intr;
 727         else {
 728                 flags |= IRQF_SHARED;
 729                 handler = qlcnic_intr;
 730         }
 731         adapter->irq = netdev->irq;
 732
 733         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 734                 sds_ring = &recv_ctx->sds_rings[ring];
 735                 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
 736                 err = request_irq(sds_ring->irq, handler,
 737                                   flags, sds_ring->name, sds_ring);
 738                 if (err)
 739                         return err;
 740         }
 741
 742         return 0;
 743 }
 744
 745 static void
 746 qlcnic_free_irq(struct qlcnic_adapter *adapter)
 747 {
 748         int ring;
 749         struct qlcnic_host_sds_ring *sds_ring;
 750
 751         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
 752
 753         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 754                 sds_ring = &recv_ctx->sds_rings[ring];
 755                 free_irq(sds_ring->irq, sds_ring);
 756         }
 757 }
 758
 759 static void
 760 qlcnic_init_coalesce_defaults(struct qlcnic_adapter *adapter)
 761 {
 762         adapter->coal.flags = QLCNIC_INTR_DEFAULT;
 763         adapter->coal.normal.data.rx_time_us =
 764                 QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
 765         adapter->coal.normal.data.rx_packets =
 766                 QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
 767         adapter->coal.normal.data.tx_time_us =
 768                 QLCNIC_DEFAULT_INTR_COALESCE_TX_TIME_US;
 769         adapter->coal.normal.data.tx_packets =
 770                 QLCNIC_DEFAULT_INTR_COALESCE_TX_PACKETS;
 771 }
 772
 773 static int
 774 __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
 775 {
 776         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
 777                 return -EIO;
 778
 779         qlcnic_set_multi(netdev);
 780         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
 781
 782         adapter->ahw.linkup = 0;
 783
 784         if (adapter->max_sds_rings > 1)
 785                 qlcnic_config_rss(adapter, 1);
 786
 787         qlcnic_config_intr_coalesce(adapter);
 788
 789         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
 790                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
 791
 792         qlcnic_napi_enable(adapter);
 793
 794         qlcnic_linkevent_request(adapter, 1);
 795
 796         set_bit(__QLCNIC_DEV_UP, &adapter->state);
 797         return 0;
 798 }
 799
 800 /* Usage: During resume and firmware recovery module.*/
 801
 802 static int
 803 qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
 804 {
 805         int err = 0;
 806
 807         rtnl_lock();
 808         if (netif_running(netdev))
 809                 err = __qlcnic_up(adapter, netdev);
 810         rtnl_unlock();
 811
 812         return err;
 813 }
 814
 815 static void
 816 __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
 817 {
 818         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
 819                 return;
 820
 821         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
 822                 return;
 823
 824         smp_mb();
 825         spin_lock(&adapter->tx_clean_lock);
 826         netif_carrier_off(netdev);
 827         netif_tx_disable(netdev);
 828
 829         qlcnic_free_mac_list(adapter);
 830
 831         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
 832
 833         qlcnic_napi_disable(adapter);
 834
 835         qlcnic_release_tx_buffers(adapter);
 836         spin_unlock(&adapter->tx_clean_lock);
 837 }
 838
 839 /* Usage: During suspend and firmware recovery module */
 840
 841 static void
 842 qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
 843 {
 844         rtnl_lock();
 845         if (netif_running(netdev))
 846                 __qlcnic_down(adapter, netdev);
 847         rtnl_unlock();
 848
 849 }
 850
 851 static int
 852 qlcnic_attach(struct qlcnic_adapter *adapter)
 853 {
 854         struct net_device *netdev = adapter->netdev;
 855         struct pci_dev *pdev = adapter->pdev;
 856         int err, ring;
 857         struct qlcnic_host_rds_ring *rds_ring;
 858
 859         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
 860                 return 0;
 861
 862         err = qlcnic_init_firmware(adapter);
 863         if (err)
 864                 return err;
 865
 866         err = qlcnic_napi_add(adapter, netdev);
 867         if (err)
 868                 return err;
 869
 870         err = qlcnic_alloc_sw_resources(adapter);
 871         if (err) {
 872                 dev_err(&pdev->dev, "Error in setting sw resources\n");
 873                 return err;
 874         }
 875
 876         err = qlcnic_alloc_hw_resources(adapter);
 877         if (err) {
 878                 dev_err(&pdev->dev, "Error in setting hw resources\n");
 879                 goto err_out_free_sw;
 880         }
 881
 882
 883         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
 884                 rds_ring = &adapter->recv_ctx.rds_rings[ring];
 885                 qlcnic_post_rx_buffers(adapter, ring, rds_ring);
 886         }
 887
 888         err = qlcnic_request_irq(adapter);
 889         if (err) {
 890                 dev_err(&pdev->dev, "failed to setup interrupt\n");
 891                 goto err_out_free_rxbuf;
 892         }
 893
 894         qlcnic_init_coalesce_defaults(adapter);
 895
 896         qlcnic_create_sysfs_entries(adapter);
 897
 898         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
 899         return 0;
 900
 901 err_out_free_rxbuf:
 902         qlcnic_release_rx_buffers(adapter);
 903         qlcnic_free_hw_resources(adapter);
 904 err_out_free_sw:
 905         qlcnic_free_sw_resources(adapter);
 906         return err;
 907 }
 908
 909 static void
 910 qlcnic_detach(struct qlcnic_adapter *adapter)
 911 {
 912         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
 913                 return;
 914
 915         qlcnic_remove_sysfs_entries(adapter);
 916
 917         qlcnic_free_hw_resources(adapter);
 918         qlcnic_release_rx_buffers(adapter);
 919         qlcnic_free_irq(adapter);
 920         qlcnic_napi_del(adapter);
 921         qlcnic_free_sw_resources(adapter);
 922
 923         adapter->is_up = 0;
 924 }
 925
 926 int
 927 qlcnic_reset_context(struct qlcnic_adapter *adapter)
 928 {
 929         int err = 0;
 930         struct net_device *netdev = adapter->netdev;
 931
 932         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
 933                 return -EBUSY;
 934
 935         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
 936
 937                 netif_device_detach(netdev);
 938
 939                 if (netif_running(netdev))
 940                         __qlcnic_down(adapter, netdev);
 941
 942                 qlcnic_detach(adapter);
 943
 944                 if (netif_running(netdev)) {
 945                         err = qlcnic_attach(adapter);
 946                         if (!err)
 947                                 err = __qlcnic_up(adapter, netdev);
 948
 949                         if (err)
 950                                 goto done;
 951                 }
 952
 953                 netif_device_attach(netdev);
 954         }
 955
 956 done:
 957         clear_bit(__QLCNIC_RESETTING, &adapter->state);
 958         return err;
 959 }
 960
 961 static int
 962 qlcnic_setup_netdev(struct qlcnic_adapter *adapter,
 963                 struct net_device *netdev)
 964 {
 965         int err;
 966         struct pci_dev *pdev = adapter->pdev;
 967
 968         adapter->rx_csum = 1;
 969         adapter->mc_enabled = 0;
 970         adapter->max_mc_count = 38;
 971
 972         netdev->netdev_ops         = &qlcnic_netdev_ops;
 973         netdev->watchdog_timeo     = 2*HZ;
 974
 975         qlcnic_change_mtu(netdev, netdev->mtu);
 976
 977         SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
 978
 979         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
 980         netdev->features |= (NETIF_F_GRO);
 981         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
 982
 983         netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
 984         netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
 985
 986         if (adapter->pci_using_dac) {
 987                 netdev->features |= NETIF_F_HIGHDMA;
 988                 netdev->vlan_features |= NETIF_F_HIGHDMA;
 989         }
 990
 991         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX)
 992                 netdev->features |= (NETIF_F_HW_VLAN_TX);
 993
 994         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
 995                 netdev->features |= NETIF_F_LRO;
 996
 997         netdev->irq = adapter->msix_entries[0].vector;
 998
 999         INIT_WORK(&adapter->tx_timeout_task, qlcnic_tx_timeout_task);
1000
1001         if (qlcnic_read_mac_addr(adapter))
1002                 dev_warn(&pdev->dev, "failed to read mac addr\n");
1003
1004         netif_carrier_off(netdev);
1005         netif_stop_queue(netdev);
1006
1007         err = register_netdev(netdev);
1008         if (err) {
1009                 dev_err(&pdev->dev, "failed to register net device\n");
1010                 return err;
1011         }
1012
1013         return 0;
1014 }
1015
1016 static int __devinit
1017 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1018 {
1019         struct net_device *netdev = NULL;
1020         struct qlcnic_adapter *adapter = NULL;
1021         int err;
1022         int pci_func_id = PCI_FUNC(pdev->devfn);
1023         uint8_t revision_id;
1024
1025         err = pci_enable_device(pdev);
1026         if (err)
1027                 return err;
1028
1029         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1030                 err = -ENODEV;
1031                 goto err_out_disable_pdev;
1032         }
1033
1034         err = pci_request_regions(pdev, qlcnic_driver_name);
1035         if (err)
1036                 goto err_out_disable_pdev;
1037
1038         pci_set_master(pdev);
1039
1040         netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1041         if (!netdev) {
1042                 dev_err(&pdev->dev, "failed to allocate net_device\n");
1043                 err = -ENOMEM;
1044                 goto err_out_free_res;
1045         }
1046
1047         SET_NETDEV_DEV(netdev, &pdev->dev);
1048
1049         adapter = netdev_priv(netdev);
1050         adapter->netdev  = netdev;
1051         adapter->pdev    = pdev;
1052         adapter->ahw.pci_func  = pci_func_id;
1053
1054         revision_id = pdev->revision;
1055         adapter->ahw.revision_id = revision_id;
1056
1057         rwlock_init(&adapter->ahw.crb_lock);
1058         mutex_init(&adapter->ahw.mem_lock);
1059
1060         spin_lock_init(&adapter->tx_clean_lock);
1061         INIT_LIST_HEAD(&adapter->mac_list);
1062
1063         err = qlcnic_setup_pci_map(adapter);
1064         if (err)
1065                 goto err_out_free_netdev;
1066
1067         /* This will be reset for mezz cards  */
1068         adapter->portnum = pci_func_id;
1069
1070         err = qlcnic_get_board_info(adapter);
1071         if (err) {
1072                 dev_err(&pdev->dev, "Error getting board config info.\n");
1073                 goto err_out_iounmap;
1074         }
1075
1076
1077         err = qlcnic_start_firmware(adapter);
1078         if (err)
1079                 goto err_out_decr_ref;
1080
1081         /*
1082          * See if the firmware gave us a virtual-physical port mapping.
1083          */
1084         adapter->physical_port = adapter->portnum;
1085
1086         qlcnic_clear_stats(adapter);
1087
1088         qlcnic_setup_intr(adapter);
1089
1090         err = qlcnic_setup_netdev(adapter, netdev);
1091         if (err)
1092                 goto err_out_disable_msi;
1093
1094         pci_set_drvdata(pdev, adapter);
1095
1096         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1097
1098         switch (adapter->ahw.port_type) {
1099         case QLCNIC_GBE:
1100                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1101                                 adapter->netdev->name);
1102                 break;
1103         case QLCNIC_XGBE:
1104                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1105                                 adapter->netdev->name);
1106                 break;
1107         }
1108
1109         qlcnic_create_diag_entries(adapter);
1110
1111         return 0;
1112
1113 err_out_disable_msi:
1114         qlcnic_teardown_intr(adapter);
1115
1116 err_out_decr_ref:
1117         qlcnic_clr_all_drv_state(adapter);
1118
1119 err_out_iounmap:
1120         qlcnic_cleanup_pci_map(adapter);
1121
1122 err_out_free_netdev:
1123         free_netdev(netdev);
1124
1125 err_out_free_res:
1126         pci_release_regions(pdev);
1127
1128 err_out_disable_pdev:
1129         pci_set_drvdata(pdev, NULL);
1130         pci_disable_device(pdev);
1131         return err;
1132 }
1133
1134 static void __devexit qlcnic_remove(struct pci_dev *pdev)
1135 {
1136         struct qlcnic_adapter *adapter;
1137         struct net_device *netdev;
1138
1139         adapter = pci_get_drvdata(pdev);
1140         if (adapter == NULL)
1141                 return;
1142
1143         netdev = adapter->netdev;
1144
1145         qlcnic_cancel_fw_work(adapter);
1146
1147         unregister_netdev(netdev);
1148
1149         cancel_work_sync(&adapter->tx_timeout_task);
1150
1151         qlcnic_detach(adapter);
1152
1153         qlcnic_clr_all_drv_state(adapter);
1154
1155         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1156
1157         qlcnic_teardown_intr(adapter);
1158
1159         qlcnic_remove_diag_entries(adapter);
1160
1161         qlcnic_cleanup_pci_map(adapter);
1162
1163         qlcnic_release_firmware(adapter);
1164
1165         pci_release_regions(pdev);
1166         pci_disable_device(pdev);
1167         pci_set_drvdata(pdev, NULL);
1168
1169         free_netdev(netdev);
1170 }
1171 static int __qlcnic_shutdown(struct pci_dev *pdev)
1172 {
1173         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1174         struct net_device *netdev = adapter->netdev;
1175         int retval;
1176
1177         netif_device_detach(netdev);
1178
1179         qlcnic_cancel_fw_work(adapter);
1180
1181         if (netif_running(netdev))
1182                 qlcnic_down(adapter, netdev);
1183
1184         cancel_work_sync(&adapter->tx_timeout_task);
1185
1186         qlcnic_detach(adapter);
1187
1188         qlcnic_clr_all_drv_state(adapter);
1189
1190         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1191
1192         retval = pci_save_state(pdev);
1193         if (retval)
1194                 return retval;
1195
1196         if (qlcnic_wol_supported(adapter)) {
1197                 pci_enable_wake(pdev, PCI_D3cold, 1);
1198                 pci_enable_wake(pdev, PCI_D3hot, 1);
1199         }
1200
1201         return 0;
1202 }
1203
1204 static void qlcnic_shutdown(struct pci_dev *pdev)
1205 {
1206         if (__qlcnic_shutdown(pdev))
1207                 return;
1208
1209         pci_disable_device(pdev);
1210 }
1211
1212 #ifdef CONFIG_PM
1213 static int
1214 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
1215 {
1216         int retval;
1217
1218         retval = __qlcnic_shutdown(pdev);
1219         if (retval)
1220                 return retval;
1221
1222         pci_set_power_state(pdev, pci_choose_state(pdev, state));
1223         return 0;
1224 }
1225
1226 static int
1227 qlcnic_resume(struct pci_dev *pdev)
1228 {
1229         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1230         struct net_device *netdev = adapter->netdev;
1231         int err;
1232
1233         err = pci_enable_device(pdev);
1234         if (err)
1235                 return err;
1236
1237         pci_set_power_state(pdev, PCI_D0);
1238         pci_set_master(pdev);
1239         pci_restore_state(pdev);
1240
1241         adapter->ahw.crb_win = -1;
1242         adapter->ahw.ocm_win = -1;
1243
1244         err = qlcnic_start_firmware(adapter);
1245         if (err) {
1246                 dev_err(&pdev->dev, "failed to start firmware\n");
1247                 return err;
1248         }
1249
1250         if (netif_running(netdev)) {
1251                 err = qlcnic_attach(adapter);
1252                 if (err)
1253                         goto err_out;
1254
1255                 err = qlcnic_up(adapter, netdev);
1256                 if (err)
1257                         goto err_out_detach;
1258
1259
1260                 qlcnic_config_indev_addr(netdev, NETDEV_UP);
1261         }
1262
1263         netif_device_attach(netdev);
1264         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1265         return 0;
1266
1267 err_out_detach:
1268         qlcnic_detach(adapter);
1269 err_out:
1270         qlcnic_clr_all_drv_state(adapter);
1271         return err;
1272 }
1273 #endif
1274
1275 static int qlcnic_open(struct net_device *netdev)
1276 {
1277         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1278         int err;
1279
1280         if (adapter->driver_mismatch)
1281                 return -EIO;
1282
1283         err = qlcnic_attach(adapter);
1284         if (err)
1285                 return err;
1286
1287         err = __qlcnic_up(adapter, netdev);
1288         if (err)
1289                 goto err_out;
1290
1291         netif_start_queue(netdev);
1292
1293         return 0;
1294
1295 err_out:
1296         qlcnic_detach(adapter);
1297         return err;
1298 }
1299
1300 /*
1301  * qlcnic_close - Disables a network interface entry point
1302  */
1303 static int qlcnic_close(struct net_device *netdev)
1304 {
1305         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1306
1307         __qlcnic_down(adapter, netdev);
1308         return 0;
1309 }
1310
1311 static void
1312 qlcnic_tso_check(struct net_device *netdev,
1313                 struct qlcnic_host_tx_ring *tx_ring,
1314                 struct cmd_desc_type0 *first_desc,
1315                 struct sk_buff *skb)
1316 {
1317         u8 opcode = TX_ETHER_PKT;
1318         __be16 protocol = skb->protocol;
1319         u16 flags = 0, vid = 0;
1320         u32 producer;
1321         int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1322         struct cmd_desc_type0 *hwdesc;
1323         struct vlan_ethhdr *vh;
1324
1325         if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1326
1327                 vh = (struct vlan_ethhdr *)skb->data;
1328                 protocol = vh->h_vlan_encapsulated_proto;
1329                 flags = FLAGS_VLAN_TAGGED;
1330
1331         } else if (vlan_tx_tag_present(skb)) {
1332
1333                 flags = FLAGS_VLAN_OOB;
1334                 vid = vlan_tx_tag_get(skb);
1335                 qlcnic_set_tx_vlan_tci(first_desc, vid);
1336                 vlan_oob = 1;
1337         }
1338
1339         if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1340                         skb_shinfo(skb)->gso_size > 0) {
1341
1342                 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1343
1344                 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1345                 first_desc->total_hdr_length = hdr_len;
1346                 if (vlan_oob) {
1347                         first_desc->total_hdr_length += VLAN_HLEN;
1348                         first_desc->tcp_hdr_offset = VLAN_HLEN;
1349                         first_desc->ip_hdr_offset = VLAN_HLEN;
1350                         /* Only in case of TSO on vlan device */
1351                         flags |= FLAGS_VLAN_TAGGED;
1352                 }
1353
1354                 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1355                                 TX_TCP_LSO6 : TX_TCP_LSO;
1356                 tso = 1;
1357
1358         } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1359                 u8 l4proto;
1360
1361                 if (protocol == cpu_to_be16(ETH_P_IP)) {
1362                         l4proto = ip_hdr(skb)->protocol;
1363
1364                         if (l4proto == IPPROTO_TCP)
1365                                 opcode = TX_TCP_PKT;
1366                         else if (l4proto == IPPROTO_UDP)
1367                                 opcode = TX_UDP_PKT;
1368                 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1369                         l4proto = ipv6_hdr(skb)->nexthdr;
1370
1371                         if (l4proto == IPPROTO_TCP)
1372                                 opcode = TX_TCPV6_PKT;
1373                         else if (l4proto == IPPROTO_UDP)
1374                                 opcode = TX_UDPV6_PKT;
1375                 }
1376         }
1377
1378         first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1379         first_desc->ip_hdr_offset += skb_network_offset(skb);
1380         qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
1381
1382         if (!tso)
1383                 return;
1384
1385         /* For LSO, we need to copy the MAC/IP/TCP headers into
1386          * the descriptor ring
1387          */
1388         producer = tx_ring->producer;
1389         copied = 0;
1390         offset = 2;
1391
1392         if (vlan_oob) {
1393                 /* Create a TSO vlan header template for firmware */
1394
1395                 hwdesc = &tx_ring->desc_head[producer];
1396                 tx_ring->cmd_buf_arr[producer].skb = NULL;
1397
1398                 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1399                                 hdr_len + VLAN_HLEN);
1400
1401                 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1402                 skb_copy_from_linear_data(skb, vh, 12);
1403                 vh->h_vlan_proto = htons(ETH_P_8021Q);
1404                 vh->h_vlan_TCI = htons(vid);
1405                 skb_copy_from_linear_data_offset(skb, 12,
1406                                 (char *)vh + 16, copy_len - 16);
1407
1408                 copied = copy_len - VLAN_HLEN;
1409                 offset = 0;
1410
1411                 producer = get_next_index(producer, tx_ring->num_desc);
1412         }
1413
1414         while (copied < hdr_len) {
1415
1416                 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1417                                 (hdr_len - copied));
1418
1419                 hwdesc = &tx_ring->desc_head[producer];
1420                 tx_ring->cmd_buf_arr[producer].skb = NULL;
1421
1422                 skb_copy_from_linear_data_offset(skb, copied,
1423                                  (char *)hwdesc + offset, copy_len);
1424
1425                 copied += copy_len;
1426                 offset = 0;
1427
1428                 producer = get_next_index(producer, tx_ring->num_desc);
1429         }
1430
1431         tx_ring->producer = producer;
1432         barrier();
1433 }
1434
1435 static int
1436 qlcnic_map_tx_skb(struct pci_dev *pdev,
1437                 struct sk_buff *skb, struct qlcnic_cmd_buffer *pbuf)
1438 {
1439         struct qlcnic_skb_frag *nf;
1440         struct skb_frag_struct *frag;
1441         int i, nr_frags;
1442         dma_addr_t map;
1443
1444         nr_frags = skb_shinfo(skb)->nr_frags;
1445         nf = &pbuf->frag_array[0];
1446
1447         map = pci_map_single(pdev, skb->data,
1448                         skb_headlen(skb), PCI_DMA_TODEVICE);
1449         if (pci_dma_mapping_error(pdev, map))
1450                 goto out_err;
1451
1452         nf->dma = map;
1453         nf->length = skb_headlen(skb);
1454
1455         for (i = 0; i < nr_frags; i++) {
1456                 frag = &skb_shinfo(skb)->frags[i];
1457                 nf = &pbuf->frag_array[i+1];
1458
1459                 map = pci_map_page(pdev, frag->page, frag->page_offset,
1460                                 frag->size, PCI_DMA_TODEVICE);
1461                 if (pci_dma_mapping_error(pdev, map))
1462                         goto unwind;
1463
1464                 nf->dma = map;
1465                 nf->length = frag->size;
1466         }
1467
1468         return 0;
1469
1470 unwind:
1471         while (--i >= 0) {
1472                 nf = &pbuf->frag_array[i+1];
1473                 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
1474         }
1475
1476         nf = &pbuf->frag_array[0];
1477         pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1478
1479 out_err:
1480         return -ENOMEM;
1481 }
1482
1483 static inline void
1484 qlcnic_clear_cmddesc(u64 *desc)
1485 {
1486         desc[0] = 0ULL;
1487         desc[2] = 0ULL;
1488 }
1489
1490 static netdev_tx_t
1491 qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
1492 {
1493         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1494         struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
1495         struct qlcnic_cmd_buffer *pbuf;
1496         struct qlcnic_skb_frag *buffrag;
1497         struct cmd_desc_type0 *hwdesc, *first_desc;
1498         struct pci_dev *pdev;
1499         int i, k;
1500
1501         u32 producer;
1502         int frag_count, no_of_desc;
1503         u32 num_txd = tx_ring->num_desc;
1504
1505         frag_count = skb_shinfo(skb)->nr_frags + 1;
1506
1507         /* 4 fragments per cmd des */
1508         no_of_desc = (frag_count + 3) >> 2;
1509
1510         if (unlikely(no_of_desc + 2 > qlcnic_tx_avail(tx_ring))) {
1511                 netif_stop_queue(netdev);
1512                 return NETDEV_TX_BUSY;
1513         }
1514
1515         producer = tx_ring->producer;
1516         pbuf = &tx_ring->cmd_buf_arr[producer];
1517
1518         pdev = adapter->pdev;
1519
1520         if (qlcnic_map_tx_skb(pdev, skb, pbuf))
1521                 goto drop_packet;
1522
1523         pbuf->skb = skb;
1524         pbuf->frag_count = frag_count;
1525
1526         first_desc = hwdesc = &tx_ring->desc_head[producer];
1527         qlcnic_clear_cmddesc((u64 *)hwdesc);
1528
1529         qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len);
1530         qlcnic_set_tx_port(first_desc, adapter->portnum);
1531
1532         for (i = 0; i < frag_count; i++) {
1533
1534                 k = i % 4;
1535
1536                 if ((k == 0) && (i > 0)) {
1537                         /* move to next desc.*/
1538                         producer = get_next_index(producer, num_txd);
1539                         hwdesc = &tx_ring->desc_head[producer];
1540                         qlcnic_clear_cmddesc((u64 *)hwdesc);
1541                         tx_ring->cmd_buf_arr[producer].skb = NULL;
1542                 }
1543
1544                 buffrag = &pbuf->frag_array[i];
1545
1546                 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
1547                 switch (k) {
1548                 case 0:
1549                         hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
1550                         break;
1551                 case 1:
1552                         hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
1553                         break;
1554                 case 2:
1555                         hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
1556                         break;
1557                 case 3:
1558                         hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
1559                         break;
1560                 }
1561         }
1562
1563         tx_ring->producer = get_next_index(producer, num_txd);
1564
1565         qlcnic_tso_check(netdev, tx_ring, first_desc, skb);
1566
1567         qlcnic_update_cmd_producer(adapter, tx_ring);
1568
1569         adapter->stats.txbytes += skb->len;
1570         adapter->stats.xmitcalled++;
1571
1572         return NETDEV_TX_OK;
1573
1574 drop_packet:
1575         adapter->stats.txdropped++;
1576         dev_kfree_skb_any(skb);
1577         return NETDEV_TX_OK;
1578 }
1579
1580 static int qlcnic_check_temp(struct qlcnic_adapter *adapter)
1581 {
1582         struct net_device *netdev = adapter->netdev;
1583         u32 temp, temp_state, temp_val;
1584         int rv = 0;
1585
1586         temp = QLCRD32(adapter, CRB_TEMP_STATE);
1587
1588         temp_state = qlcnic_get_temp_state(temp);
1589         temp_val = qlcnic_get_temp_val(temp);
1590
1591         if (temp_state == QLCNIC_TEMP_PANIC) {
1592                 dev_err(&netdev->dev,
1593                        "Device temperature %d degrees C exceeds"
1594                        " maximum allowed. Hardware has been shut down.\n",
1595                        temp_val);
1596                 rv = 1;
1597         } else if (temp_state == QLCNIC_TEMP_WARN) {
1598                 if (adapter->temp == QLCNIC_TEMP_NORMAL) {
1599                         dev_err(&netdev->dev,
1600                                "Device temperature %d degrees C "
1601                                "exceeds operating range."
1602                                " Immediate action needed.\n",
1603                                temp_val);
1604                 }
1605         } else {
1606                 if (adapter->temp == QLCNIC_TEMP_WARN) {
1607                         dev_info(&netdev->dev,
1608                                "Device temperature is now %d degrees C"
1609                                " in normal range.\n", temp_val);
1610                 }
1611         }
1612         adapter->temp = temp_state;
1613         return rv;
1614 }
1615
1616 void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup)
1617 {
1618         struct net_device *netdev = adapter->netdev;
1619
1620         if (adapter->ahw.linkup && !linkup) {
1621                 dev_info(&netdev->dev, "NIC Link is down\n");
1622                 adapter->ahw.linkup = 0;
1623                 if (netif_running(netdev)) {
1624                         netif_carrier_off(netdev);
1625                         netif_stop_queue(netdev);
1626                 }
1627         } else if (!adapter->ahw.linkup && linkup) {
1628                 dev_info(&netdev->dev, "NIC Link is up\n");
1629                 adapter->ahw.linkup = 1;
1630                 if (netif_running(netdev)) {
1631                         netif_carrier_on(netdev);
1632                         netif_wake_queue(netdev);
1633                 }
1634         }
1635 }
1636
1637 static void qlcnic_tx_timeout(struct net_device *netdev)
1638 {
1639         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1640
1641         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
1642                 return;
1643
1644         dev_err(&netdev->dev, "transmit timeout, resetting.\n");
1645         schedule_work(&adapter->tx_timeout_task);
1646 }
1647
1648 static void qlcnic_tx_timeout_task(struct work_struct *work)
1649 {
1650         struct qlcnic_adapter *adapter =
1651                 container_of(work, struct qlcnic_adapter, tx_timeout_task);
1652
1653         if (!netif_running(adapter->netdev))
1654                 return;
1655
1656         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1657                 return;
1658
1659         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
1660                 goto request_reset;
1661
1662         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1663         if (!qlcnic_reset_context(adapter)) {
1664                 adapter->netdev->trans_start = jiffies;
1665                 return;
1666
1667                 /* context reset failed, fall through for fw reset */
1668         }
1669
1670 request_reset:
1671         adapter->need_fw_reset = 1;
1672         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1673 }
1674
1675 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
1676 {
1677         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1678         struct net_device_stats *stats = &netdev->stats;
1679
1680         memset(stats, 0, sizeof(*stats));
1681
1682         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
1683         stats->tx_packets = adapter->stats.xmitfinished;
1684         stats->rx_bytes = adapter->stats.rxbytes;
1685         stats->tx_bytes = adapter->stats.txbytes;
1686         stats->rx_dropped = adapter->stats.rxdropped;
1687         stats->tx_dropped = adapter->stats.txdropped;
1688
1689         return stats;
1690 }
1691
1692 static irqreturn_t qlcnic_intr(int irq, void *data)
1693 {
1694         struct qlcnic_host_sds_ring *sds_ring = data;
1695         struct qlcnic_adapter *adapter = sds_ring->adapter;
1696         u32 status;
1697
1698         status = readl(adapter->isr_int_vec);
1699
1700         if (!(status & adapter->int_vec_bit))
1701                 return IRQ_NONE;
1702
1703         /* check interrupt state machine, to be sure */
1704         status = readl(adapter->crb_int_state_reg);
1705         if (!ISR_LEGACY_INT_TRIGGERED(status))
1706                 return IRQ_NONE;
1707
1708         writel(0xffffffff, adapter->tgt_status_reg);
1709         /* read twice to ensure write is flushed */
1710         readl(adapter->isr_int_vec);
1711         readl(adapter->isr_int_vec);
1712
1713         napi_schedule(&sds_ring->napi);
1714
1715         return IRQ_HANDLED;
1716 }
1717
1718 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
1719 {
1720         struct qlcnic_host_sds_ring *sds_ring = data;
1721         struct qlcnic_adapter *adapter = sds_ring->adapter;
1722
1723         /* clear interrupt */
1724         writel(0xffffffff, adapter->tgt_status_reg);
1725
1726         napi_schedule(&sds_ring->napi);
1727         return IRQ_HANDLED;
1728 }
1729
1730 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
1731 {
1732         struct qlcnic_host_sds_ring *sds_ring = data;
1733
1734         napi_schedule(&sds_ring->napi);
1735         return IRQ_HANDLED;
1736 }
1737
1738 static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter)
1739 {
1740         u32 sw_consumer, hw_consumer;
1741         int count = 0, i;
1742         struct qlcnic_cmd_buffer *buffer;
1743         struct pci_dev *pdev = adapter->pdev;
1744         struct net_device *netdev = adapter->netdev;
1745         struct qlcnic_skb_frag *frag;
1746         int done;
1747         struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
1748
1749         if (!spin_trylock(&adapter->tx_clean_lock))
1750                 return 1;
1751
1752         sw_consumer = tx_ring->sw_consumer;
1753         hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1754
1755         while (sw_consumer != hw_consumer) {
1756                 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
1757                 if (buffer->skb) {
1758                         frag = &buffer->frag_array[0];
1759                         pci_unmap_single(pdev, frag->dma, frag->length,
1760                                          PCI_DMA_TODEVICE);
1761                         frag->dma = 0ULL;
1762                         for (i = 1; i < buffer->frag_count; i++) {
1763                                 frag++;
1764                                 pci_unmap_page(pdev, frag->dma, frag->length,
1765                                                PCI_DMA_TODEVICE);
1766                                 frag->dma = 0ULL;
1767                         }
1768
1769                         adapter->stats.xmitfinished++;
1770                         dev_kfree_skb_any(buffer->skb);
1771                         buffer->skb = NULL;
1772                 }
1773
1774                 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
1775                 if (++count >= MAX_STATUS_HANDLE)
1776                         break;
1777         }
1778
1779         if (count && netif_running(netdev)) {
1780                 tx_ring->sw_consumer = sw_consumer;
1781
1782                 smp_mb();
1783
1784                 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
1785                         __netif_tx_lock(tx_ring->txq, smp_processor_id());
1786                         if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) {
1787                                 netif_wake_queue(netdev);
1788                                 adapter->tx_timeo_cnt = 0;
1789                         }
1790                         __netif_tx_unlock(tx_ring->txq);
1791                 }
1792         }
1793         /*
1794          * If everything is freed up to consumer then check if the ring is full
1795          * If the ring is full then check if more needs to be freed and
1796          * schedule the call back again.
1797          *
1798          * This happens when there are 2 CPUs. One could be freeing and the
1799          * other filling it. If the ring is full when we get out of here and
1800          * the card has already interrupted the host then the host can miss the
1801          * interrupt.
1802          *
1803          * There is still a possible race condition and the host could miss an
1804          * interrupt. The card has to take care of this.
1805          */
1806         hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1807         done = (sw_consumer == hw_consumer);
1808         spin_unlock(&adapter->tx_clean_lock);
1809
1810         return done;
1811 }
1812
1813 static int qlcnic_poll(struct napi_struct *napi, int budget)
1814 {
1815         struct qlcnic_host_sds_ring *sds_ring =
1816                 container_of(napi, struct qlcnic_host_sds_ring, napi);
1817
1818         struct qlcnic_adapter *adapter = sds_ring->adapter;
1819
1820         int tx_complete;
1821         int work_done;
1822
1823         tx_complete = qlcnic_process_cmd_ring(adapter);
1824
1825         work_done = qlcnic_process_rcv_ring(sds_ring, budget);
1826
1827         if ((work_done < budget) && tx_complete) {
1828                 napi_complete(&sds_ring->napi);
1829                 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1830                         qlcnic_enable_int(sds_ring);
1831         }
1832
1833         return work_done;
1834 }
1835
1836 #ifdef CONFIG_NET_POLL_CONTROLLER
1837 static void qlcnic_poll_controller(struct net_device *netdev)
1838 {
1839         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1840         disable_irq(adapter->irq);
1841         qlcnic_intr(adapter->irq, adapter);
1842         enable_irq(adapter->irq);
1843 }
1844 #endif
1845
1846 static void
1847 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, int state)
1848 {
1849         u32  val;
1850
1851         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
1852                         state != QLCNIC_DEV_NEED_QUISCENT);
1853
1854         if (qlcnic_api_lock(adapter))
1855                 return ;
1856
1857         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
1858
1859         if (state == QLCNIC_DEV_NEED_RESET)
1860                 val |= ((u32)0x1 << (adapter->portnum * 4));
1861         else if (state == QLCNIC_DEV_NEED_QUISCENT)
1862                 val |= ((u32)0x1 << ((adapter->portnum * 4) + 1));
1863
1864         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
1865
1866         qlcnic_api_unlock(adapter);
1867 }
1868
1869 static int
1870 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
1871 {
1872         u32  val;
1873
1874         if (qlcnic_api_lock(adapter))
1875                 return -EBUSY;
1876
1877         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
1878         val &= ~((u32)0x3 << (adapter->portnum * 4));
1879         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
1880
1881         qlcnic_api_unlock(adapter);
1882
1883         return 0;
1884 }
1885
1886 static void
1887 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter)
1888 {
1889         u32  val;
1890
1891         if (qlcnic_api_lock(adapter))
1892                 goto err;
1893
1894         val = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT);
1895         val &= ~((u32)0x1 << (adapter->portnum * 4));
1896         QLCWR32(adapter, QLCNIC_CRB_DEV_REF_COUNT, val);
1897
1898         if (!(val & 0x11111111))
1899                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_COLD);
1900
1901         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
1902         val &= ~((u32)0x3 << (adapter->portnum * 4));
1903         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
1904
1905         qlcnic_api_unlock(adapter);
1906 err:
1907         adapter->fw_fail_cnt = 0;
1908         clear_bit(__QLCNIC_START_FW, &adapter->state);
1909         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1910 }
1911
1912 static int
1913 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
1914 {
1915         int act, state;
1916
1917         state = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
1918         act = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT);
1919
1920         if (((state & 0x11111111) == (act & 0x11111111)) ||
1921                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
1922                 return 0;
1923         else
1924                 return 1;
1925 }
1926
1927 static int
1928 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
1929 {
1930         u32 val, prev_state;
1931         int cnt = 0;
1932         int portnum = adapter->portnum;
1933
1934         if (qlcnic_api_lock(adapter))
1935                 return -1;
1936
1937         val = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT);
1938         if (!(val & ((int)0x1 << (portnum * 4)))) {
1939                 val |= ((u32)0x1 << (portnum * 4));
1940                 QLCWR32(adapter, QLCNIC_CRB_DEV_REF_COUNT, val);
1941         } else if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state)) {
1942                 goto start_fw;
1943         }
1944
1945         prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
1946
1947         switch (prev_state) {
1948         case QLCNIC_DEV_COLD:
1949 start_fw:
1950                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITALIZING);
1951                 qlcnic_api_unlock(adapter);
1952                 return 1;
1953
1954         case QLCNIC_DEV_READY:
1955                 qlcnic_api_unlock(adapter);
1956                 return 0;
1957
1958         case QLCNIC_DEV_NEED_RESET:
1959                 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
1960                 val |= ((u32)0x1 << (portnum * 4));
1961                 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
1962                 break;
1963
1964         case QLCNIC_DEV_NEED_QUISCENT:
1965                 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
1966                 val |= ((u32)0x1 << ((portnum * 4) + 1));
1967                 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
1968                 break;
1969
1970         case QLCNIC_DEV_FAILED:
1971                 qlcnic_api_unlock(adapter);
1972                 return -1;
1973         }
1974
1975         qlcnic_api_unlock(adapter);
1976         msleep(1000);
1977         while ((QLCRD32(adapter, QLCNIC_CRB_DEV_STATE) != QLCNIC_DEV_READY) &&
1978                         ++cnt < 20)
1979                 msleep(1000);
1980
1981         if (cnt >= 20)
1982                 return -1;
1983
1984         if (qlcnic_api_lock(adapter))
1985                 return -1;
1986
1987         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
1988         val &= ~((u32)0x3 << (portnum * 4));
1989         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
1990
1991         qlcnic_api_unlock(adapter);
1992
1993         return 0;
1994 }
1995
1996 static void
1997 qlcnic_fwinit_work(struct work_struct *work)
1998 {
1999         struct qlcnic_adapter *adapter = container_of(work,
2000                         struct qlcnic_adapter, fw_work.work);
2001         int dev_state;
2002
2003         if (++adapter->fw_wait_cnt > FW_POLL_THRESH)
2004                 goto err_ret;
2005
2006         if (test_bit(__QLCNIC_START_FW, &adapter->state)) {
2007
2008                 if (qlcnic_check_drv_state(adapter)) {
2009                         qlcnic_schedule_work(adapter,
2010                                         qlcnic_fwinit_work, FW_POLL_DELAY);
2011                         return;
2012                 }
2013
2014                 if (!qlcnic_start_firmware(adapter)) {
2015                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2016                         return;
2017                 }
2018
2019                 goto err_ret;
2020         }
2021
2022         dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2023         switch (dev_state) {
2024         case QLCNIC_DEV_READY:
2025                 if (!qlcnic_start_firmware(adapter)) {
2026                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2027                         return;
2028                 }
2029         case QLCNIC_DEV_FAILED:
2030                 break;
2031
2032         default:
2033                 qlcnic_schedule_work(adapter,
2034                         qlcnic_fwinit_work, 2 * FW_POLL_DELAY);
2035                 return;
2036         }
2037
2038 err_ret:
2039         qlcnic_clr_all_drv_state(adapter);
2040 }
2041
2042 static void
2043 qlcnic_detach_work(struct work_struct *work)
2044 {
2045         struct qlcnic_adapter *adapter = container_of(work,
2046                         struct qlcnic_adapter, fw_work.work);
2047         struct net_device *netdev = adapter->netdev;
2048         u32 status;
2049
2050         netif_device_detach(netdev);
2051
2052         qlcnic_down(adapter, netdev);
2053
2054         qlcnic_detach(adapter);
2055
2056         status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2057
2058         if (status & QLCNIC_RCODE_FATAL_ERROR)
2059                 goto err_ret;
2060
2061         if (adapter->temp == QLCNIC_TEMP_PANIC)
2062                 goto err_ret;
2063
2064         qlcnic_set_drv_state(adapter, adapter->dev_state);
2065
2066         adapter->fw_wait_cnt = 0;
2067
2068         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2069
2070         return;
2071
2072 err_ret:
2073         qlcnic_clr_all_drv_state(adapter);
2074
2075 }
2076
2077 static void
2078 qlcnic_dev_request_reset(struct qlcnic_adapter *adapter)
2079 {
2080         u32 state;
2081
2082         if (qlcnic_api_lock(adapter))
2083                 return;
2084
2085         state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2086
2087         if (state != QLCNIC_DEV_INITALIZING && state != QLCNIC_DEV_NEED_RESET) {
2088                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_RESET);
2089                 set_bit(__QLCNIC_START_FW, &adapter->state);
2090         }
2091
2092         qlcnic_api_unlock(adapter);
2093 }
2094
2095 static void
2096 qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2097                 work_func_t func, int delay)
2098 {
2099         INIT_DELAYED_WORK(&adapter->fw_work, func);
2100         schedule_delayed_work(&adapter->fw_work, round_jiffies_relative(delay));
2101 }
2102
2103 static void
2104 qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter)
2105 {
2106         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2107                 msleep(10);
2108
2109         cancel_delayed_work_sync(&adapter->fw_work);
2110 }
2111
2112 static void
2113 qlcnic_attach_work(struct work_struct *work)
2114 {
2115         struct qlcnic_adapter *adapter = container_of(work,
2116                                 struct qlcnic_adapter, fw_work.work);
2117         struct net_device *netdev = adapter->netdev;
2118         int err;
2119
2120         if (netif_running(netdev)) {
2121                 err = qlcnic_attach(adapter);
2122                 if (err)
2123                         goto done;
2124
2125                 err = qlcnic_up(adapter, netdev);
2126                 if (err) {
2127                         qlcnic_detach(adapter);
2128                         goto done;
2129                 }
2130
2131                 qlcnic_config_indev_addr(netdev, NETDEV_UP);
2132         }
2133
2134         netif_device_attach(netdev);
2135
2136 done:
2137         adapter->fw_fail_cnt = 0;
2138         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2139
2140         if (!qlcnic_clr_drv_state(adapter))
2141                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2142                                                         FW_POLL_DELAY);
2143 }
2144
2145 static int
2146 qlcnic_check_health(struct qlcnic_adapter *adapter)
2147 {
2148         u32 state = 0, heartbit;
2149         struct net_device *netdev = adapter->netdev;
2150
2151         if (qlcnic_check_temp(adapter))
2152                 goto detach;
2153
2154         if (adapter->need_fw_reset) {
2155                 qlcnic_dev_request_reset(adapter);
2156                 goto detach;
2157         }
2158
2159         state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2160         if (state == QLCNIC_DEV_NEED_RESET || state == QLCNIC_DEV_NEED_QUISCENT)
2161                 adapter->need_fw_reset = 1;
2162
2163         heartbit = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
2164         if (heartbit != adapter->heartbit) {
2165                 adapter->heartbit = heartbit;
2166                 adapter->fw_fail_cnt = 0;
2167                 if (adapter->need_fw_reset)
2168                         goto detach;
2169                 return 0;
2170         }
2171
2172         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2173                 return 0;
2174
2175         qlcnic_dev_request_reset(adapter);
2176
2177         clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
2178
2179         dev_info(&netdev->dev, "firmware hang detected\n");
2180
2181 detach:
2182         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
2183                 QLCNIC_DEV_NEED_RESET;
2184
2185         if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2186                         !test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2187                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
2188
2189         return 1;
2190 }
2191
2192 static void
2193 qlcnic_fw_poll_work(struct work_struct *work)
2194 {
2195         struct qlcnic_adapter *adapter = container_of(work,
2196                                 struct qlcnic_adapter, fw_work.work);
2197
2198         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2199                 goto reschedule;
2200
2201
2202         if (qlcnic_check_health(adapter))
2203                 return;
2204
2205 reschedule:
2206         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
2207 }
2208
2209 static ssize_t
2210 qlcnic_store_bridged_mode(struct device *dev,
2211                 struct device_attribute *attr, const char *buf, size_t len)
2212 {
2213         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2214         unsigned long new;
2215         int ret = -EINVAL;
2216
2217         if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG))
2218                 goto err_out;
2219
2220         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2221                 goto err_out;
2222
2223         if (strict_strtoul(buf, 2, &new))
2224                 goto err_out;
2225
2226         if (!qlcnic_config_bridged_mode(adapter, !!new))
2227                 ret = len;
2228
2229 err_out:
2230         return ret;
2231 }
2232
2233 static ssize_t
2234 qlcnic_show_bridged_mode(struct device *dev,
2235                 struct device_attribute *attr, char *buf)
2236 {
2237         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2238         int bridged_mode = 0;
2239
2240         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
2241                 bridged_mode = !!(adapter->flags & QLCNIC_BRIDGE_ENABLED);
2242
2243         return sprintf(buf, "%d\n", bridged_mode);
2244 }
2245
2246 static struct device_attribute dev_attr_bridged_mode = {
2247        .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2248        .show = qlcnic_show_bridged_mode,
2249        .store = qlcnic_store_bridged_mode,
2250 };
2251
2252 static ssize_t
2253 qlcnic_store_diag_mode(struct device *dev,
2254                 struct device_attribute *attr, const char *buf, size_t len)
2255 {
2256         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2257         unsigned long new;
2258
2259         if (strict_strtoul(buf, 2, &new))
2260                 return -EINVAL;
2261
2262         if (!!new != !!(adapter->flags & QLCNIC_DIAG_ENABLED))
2263                 adapter->flags ^= QLCNIC_DIAG_ENABLED;
2264
2265         return len;
2266 }
2267
2268 static ssize_t
2269 qlcnic_show_diag_mode(struct device *dev,
2270                 struct device_attribute *attr, char *buf)
2271 {
2272         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2273
2274         return sprintf(buf, "%d\n",
2275                         !!(adapter->flags & QLCNIC_DIAG_ENABLED));
2276 }
2277
2278 static struct device_attribute dev_attr_diag_mode = {
2279         .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2280         .show = qlcnic_show_diag_mode,
2281         .store = qlcnic_store_diag_mode,
2282 };
2283
2284 static int
2285 qlcnic_sysfs_validate_crb(struct qlcnic_adapter *adapter,
2286                 loff_t offset, size_t size)
2287 {
2288         if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
2289                 return -EIO;
2290
2291         if ((size != 4) || (offset & 0x3))
2292                 return  -EINVAL;
2293
2294         if (offset < QLCNIC_PCI_CRBSPACE)
2295                 return -EINVAL;
2296
2297         return 0;
2298 }
2299
2300 static ssize_t
2301 qlcnic_sysfs_read_crb(struct kobject *kobj, struct bin_attribute *attr,
2302                 char *buf, loff_t offset, size_t size)
2303 {
2304         struct device *dev = container_of(kobj, struct device, kobj);
2305         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2306         u32 data;
2307         int ret;
2308
2309         ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
2310         if (ret != 0)
2311                 return ret;
2312
2313         data = QLCRD32(adapter, offset);
2314         memcpy(buf, &data, size);
2315         return size;
2316 }
2317
2318 static ssize_t
2319 qlcnic_sysfs_write_crb(struct kobject *kobj, struct bin_attribute *attr,
2320                 char *buf, loff_t offset, size_t size)
2321 {
2322         struct device *dev = container_of(kobj, struct device, kobj);
2323         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2324         u32 data;
2325         int ret;
2326
2327         ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
2328         if (ret != 0)
2329                 return ret;
2330
2331         memcpy(&data, buf, size);
2332         QLCWR32(adapter, offset, data);
2333         return size;
2334 }
2335
2336 static int
2337 qlcnic_sysfs_validate_mem(struct qlcnic_adapter *adapter,
2338                 loff_t offset, size_t size)
2339 {
2340         if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
2341                 return -EIO;
2342
2343         if ((size != 8) || (offset & 0x7))
2344                 return  -EIO;
2345
2346         return 0;
2347 }
2348
2349 static ssize_t
2350 qlcnic_sysfs_read_mem(struct kobject *kobj, struct bin_attribute *attr,
2351                 char *buf, loff_t offset, size_t size)
2352 {
2353         struct device *dev = container_of(kobj, struct device, kobj);
2354         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2355         u64 data;
2356         int ret;
2357
2358         ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
2359         if (ret != 0)
2360                 return ret;
2361
2362         if (qlcnic_pci_mem_read_2M(adapter, offset, &data))
2363                 return -EIO;
2364
2365         memcpy(buf, &data, size);
2366
2367         return size;
2368 }
2369
2370 static ssize_t
2371 qlcnic_sysfs_write_mem(struct kobject *kobj, struct bin_attribute *attr,
2372                 char *buf, loff_t offset, size_t size)
2373 {
2374         struct device *dev = container_of(kobj, struct device, kobj);
2375         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2376         u64 data;
2377         int ret;
2378
2379         ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
2380         if (ret != 0)
2381                 return ret;
2382
2383         memcpy(&data, buf, size);
2384
2385         if (qlcnic_pci_mem_write_2M(adapter, offset, data))
2386                 return -EIO;
2387
2388         return size;
2389 }
2390
2391
2392 static struct bin_attribute bin_attr_crb = {
2393         .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2394         .size = 0,
2395         .read = qlcnic_sysfs_read_crb,
2396         .write = qlcnic_sysfs_write_crb,
2397 };
2398
2399 static struct bin_attribute bin_attr_mem = {
2400         .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2401         .size = 0,
2402         .read = qlcnic_sysfs_read_mem,
2403         .write = qlcnic_sysfs_write_mem,
2404 };
2405
2406 static void
2407 qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter)
2408 {
2409         struct device *dev = &adapter->pdev->dev;
2410
2411         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
2412                 if (device_create_file(dev, &dev_attr_bridged_mode))
2413                         dev_warn(dev,
2414                                 "failed to create bridged_mode sysfs entry\n");
2415 }
2416
2417 static void
2418 qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter)
2419 {
2420         struct device *dev = &adapter->pdev->dev;
2421
2422         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
2423                 device_remove_file(dev, &dev_attr_bridged_mode);
2424 }
2425
2426 static void
2427 qlcnic_create_diag_entries(struct qlcnic_adapter *adapter)
2428 {
2429         struct device *dev = &adapter->pdev->dev;
2430
2431         if (device_create_file(dev, &dev_attr_diag_mode))
2432                 dev_info(dev, "failed to create diag_mode sysfs entry\n");
2433         if (device_create_bin_file(dev, &bin_attr_crb))
2434                 dev_info(dev, "failed to create crb sysfs entry\n");
2435         if (device_create_bin_file(dev, &bin_attr_mem))
2436                 dev_info(dev, "failed to create mem sysfs entry\n");
2437 }
2438
2439
2440 static void
2441 qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter)
2442 {
2443         struct device *dev = &adapter->pdev->dev;
2444
2445         device_remove_file(dev, &dev_attr_diag_mode);
2446         device_remove_bin_file(dev, &bin_attr_crb);
2447         device_remove_bin_file(dev, &bin_attr_mem);
2448 }
2449
2450 #ifdef CONFIG_INET
2451
2452 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
2453
2454 static int
2455 qlcnic_destip_supported(struct qlcnic_adapter *adapter)
2456 {
2457         if (adapter->ahw.cut_through)
2458                 return 0;
2459
2460         return 1;
2461 }
2462
2463 static void
2464 qlcnic_config_indev_addr(struct net_device *dev, unsigned long event)
2465 {
2466         struct in_device *indev;
2467         struct qlcnic_adapter *adapter = netdev_priv(dev);
2468
2469         if (!qlcnic_destip_supported(adapter))
2470                 return;
2471
2472         indev = in_dev_get(dev);
2473         if (!indev)
2474                 return;
2475
2476         for_ifa(indev) {
2477                 switch (event) {
2478                 case NETDEV_UP:
2479                         qlcnic_config_ipaddr(adapter,
2480                                         ifa->ifa_address, QLCNIC_IP_UP);
2481                         break;
2482                 case NETDEV_DOWN:
2483                         qlcnic_config_ipaddr(adapter,
2484                                         ifa->ifa_address, QLCNIC_IP_DOWN);
2485                         break;
2486                 default:
2487                         break;
2488                 }
2489         } endfor_ifa(indev);
2490
2491         in_dev_put(indev);
2492         return;
2493 }
2494
2495 static int qlcnic_netdev_event(struct notifier_block *this,
2496                                  unsigned long event, void *ptr)
2497 {
2498         struct qlcnic_adapter *adapter;
2499         struct net_device *dev = (struct net_device *)ptr;
2500
2501 recheck:
2502         if (dev == NULL)
2503                 goto done;
2504
2505         if (dev->priv_flags & IFF_802_1Q_VLAN) {
2506                 dev = vlan_dev_real_dev(dev);
2507                 goto recheck;
2508         }
2509
2510         if (!is_qlcnic_netdev(dev))
2511                 goto done;
2512
2513         adapter = netdev_priv(dev);
2514
2515         if (!adapter)
2516                 goto done;
2517
2518         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2519                 goto done;
2520
2521         qlcnic_config_indev_addr(dev, event);
2522 done:
2523         return NOTIFY_DONE;
2524 }
2525
2526 static int
2527 qlcnic_inetaddr_event(struct notifier_block *this,
2528                 unsigned long event, void *ptr)
2529 {
2530         struct qlcnic_adapter *adapter;
2531         struct net_device *dev;
2532
2533         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2534
2535         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2536
2537 recheck:
2538         if (dev == NULL || !netif_running(dev))
2539                 goto done;
2540
2541         if (dev->priv_flags & IFF_802_1Q_VLAN) {
2542                 dev = vlan_dev_real_dev(dev);
2543                 goto recheck;
2544         }
2545
2546         if (!is_qlcnic_netdev(dev))
2547                 goto done;
2548
2549         adapter = netdev_priv(dev);
2550
2551         if (!adapter || !qlcnic_destip_supported(adapter))
2552                 goto done;
2553
2554         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2555                 goto done;
2556
2557         switch (event) {
2558         case NETDEV_UP:
2559                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
2560                 break;
2561         case NETDEV_DOWN:
2562                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
2563                 break;
2564         default:
2565                 break;
2566         }
2567
2568 done:
2569         return NOTIFY_DONE;
2570 }
2571
2572 static struct notifier_block    qlcnic_netdev_cb = {
2573         .notifier_call = qlcnic_netdev_event,
2574 };
2575
2576 static struct notifier_block qlcnic_inetaddr_cb = {
2577         .notifier_call = qlcnic_inetaddr_event,
2578 };
2579 #else
2580 static void
2581 qlcnic_config_indev_addr(struct net_device *dev, unsigned long event)
2582 { }
2583 #endif
2584
2585 static struct pci_driver qlcnic_driver = {
2586         .name = qlcnic_driver_name,
2587         .id_table = qlcnic_pci_tbl,
2588         .probe = qlcnic_probe,
2589         .remove = __devexit_p(qlcnic_remove),
2590 #ifdef CONFIG_PM
2591         .suspend = qlcnic_suspend,
2592         .resume = qlcnic_resume,
2593 #endif
2594         .shutdown = qlcnic_shutdown
2595 };
2596
2597 static int __init qlcnic_init_module(void)
2598 {
2599
2600         printk(KERN_INFO "%s\n", qlcnic_driver_string);
2601
2602 #ifdef CONFIG_INET
2603         register_netdevice_notifier(&qlcnic_netdev_cb);
2604         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
2605 #endif
2606
2607
2608         return pci_register_driver(&qlcnic_driver);
2609 }
2610
2611 module_init(qlcnic_init_module);
2612
2613 static void __exit qlcnic_exit_module(void)
2614 {
2615
2616         pci_unregister_driver(&qlcnic_driver);
2617
2618 #ifdef CONFIG_INET
2619         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
2620         unregister_netdevice_notifier(&qlcnic_netdev_cb);
2621 #endif
2622 }
2623
2624 module_exit(qlcnic_exit_module);