drivers/net/qlcnic/qlcnic_main.c

   1 /*
   2  * QLogic qlcnic NIC Driver
   3  * Copyright (c)  2009-2010 QLogic Corporation
   4  *
   5  * See LICENSE.qlcnic for copyright and licensing details.
   6  */
   7
   8 #include <linux/slab.h>
   9 #include <linux/vmalloc.h>
  10 #include <linux/interrupt.h>
  11
  12 #include "qlcnic.h"
  13
  14 #include <linux/swab.h>
  15 #include <linux/dma-mapping.h>
  16 #include <net/ip.h>
  17 #include <linux/ipv6.h>
  18 #include <linux/inetdevice.h>
  19 #include <linux/sysfs.h>
  20 #include <linux/aer.h>
  21 #include <linux/log2.h>
  22
  23 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
  24 MODULE_LICENSE("GPL");
  25 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
  26 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
  27
  28 char qlcnic_driver_name[] = "qlcnic";
  29 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
  30         "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
  31
  32 static struct workqueue_struct *qlcnic_wq;
  33 static int qlcnic_mac_learn;
  34 module_param(qlcnic_mac_learn, int, 0444);
  35 MODULE_PARM_DESC(qlcnic_mac_learn, "Mac Filter (0=disabled, 1=enabled)");
  36
  37 static int use_msi = 1;
  38 module_param(use_msi, int, 0444);
  39 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled");
  40
  41 static int use_msi_x = 1;
  42 module_param(use_msi_x, int, 0444);
  43 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled");
  44
  45 static int auto_fw_reset = 1;
  46 module_param(auto_fw_reset, int, 0644);
  47 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled");
  48
  49 static int load_fw_file;
  50 module_param(load_fw_file, int, 0444);
  51 MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file");
  52
  53 static int qlcnic_config_npars;
  54 module_param(qlcnic_config_npars, int, 0444);
  55 MODULE_PARM_DESC(qlcnic_config_npars, "Configure NPARs (0=disabled, 1=enabled");
  56
  57 static int __devinit qlcnic_probe(struct pci_dev *pdev,
  58                 const struct pci_device_id *ent);
  59 static void __devexit qlcnic_remove(struct pci_dev *pdev);
  60 static int qlcnic_open(struct net_device *netdev);
  61 static int qlcnic_close(struct net_device *netdev);
  62 static void qlcnic_tx_timeout(struct net_device *netdev);
  63 static void qlcnic_attach_work(struct work_struct *work);
  64 static void qlcnic_fwinit_work(struct work_struct *work);
  65 static void qlcnic_fw_poll_work(struct work_struct *work);
  66 static void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
  67                 work_func_t func, int delay);
  68 static void qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter);
  69 static int qlcnic_poll(struct napi_struct *napi, int budget);
  70 static int qlcnic_rx_poll(struct napi_struct *napi, int budget);
  71 #ifdef CONFIG_NET_POLL_CONTROLLER
  72 static void qlcnic_poll_controller(struct net_device *netdev);
  73 #endif
  74
  75 static void qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter);
  76 static void qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter);
  77 static void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter);
  78 static void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter);
  79
  80 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
  81 static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8);
  82 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
  83
  84 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
  85 static irqreturn_t qlcnic_intr(int irq, void *data);
  86 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
  87 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
  88
  89 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
  90 static void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long);
  91 static int qlcnic_start_firmware(struct qlcnic_adapter *);
  92
  93 static void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter);
  94 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
  95 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
  96 static int qlcnicvf_config_led(struct qlcnic_adapter *, u32, u32);
  97 static int qlcnicvf_config_bridged_mode(struct qlcnic_adapter *, u32);
  98 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
  99 static void qlcnic_set_netdev_features(struct qlcnic_adapter *,
 100                                 struct qlcnic_esw_func_cfg *);
 101 static void qlcnic_vlan_rx_add(struct net_device *, u16);
 102 static void qlcnic_vlan_rx_del(struct net_device *, u16);
 103
 104 /*  PCI Device ID Table  */
 105 #define ENTRY(device) \
 106         {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
 107         .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
 108
 109 #define PCI_DEVICE_ID_QLOGIC_QLE824X  0x8020
 110
 111 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
 112         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
 113         {0,}
 114 };
 115
 116 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
 117
 118
 119 inline void
 120 qlcnic_update_cmd_producer(struct qlcnic_adapter *adapter,
 121                 struct qlcnic_host_tx_ring *tx_ring)
 122 {
 123         writel(tx_ring->producer, tx_ring->crb_cmd_producer);
 124 }
 125
 126 static const u32 msi_tgt_status[8] = {
 127         ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
 128         ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
 129         ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
 130         ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
 131 };
 132
 133 static const
 134 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
 135
 136 static inline void qlcnic_disable_int(struct qlcnic_host_sds_ring *sds_ring)
 137 {
 138         writel(0, sds_ring->crb_intr_mask);
 139 }
 140
 141 static inline void qlcnic_enable_int(struct qlcnic_host_sds_ring *sds_ring)
 142 {
 143         struct qlcnic_adapter *adapter = sds_ring->adapter;
 144
 145         writel(0x1, sds_ring->crb_intr_mask);
 146
 147         if (!QLCNIC_IS_MSI_FAMILY(adapter))
 148                 writel(0xfbff, adapter->tgt_mask_reg);
 149 }
 150
 151 static int
 152 qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
 153 {
 154         int size = sizeof(struct qlcnic_host_sds_ring) * count;
 155
 156         recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
 157
 158         return recv_ctx->sds_rings == NULL;
 159 }
 160
 161 static void
 162 qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
 163 {
 164         if (recv_ctx->sds_rings != NULL)
 165                 kfree(recv_ctx->sds_rings);
 166
 167         recv_ctx->sds_rings = NULL;
 168 }
 169
 170 static int
 171 qlcnic_napi_add(struct qlcnic_adapter *adapter, struct net_device *netdev)
 172 {
 173         int ring;
 174         struct qlcnic_host_sds_ring *sds_ring;
 175         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
 176
 177         if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
 178                 return -ENOMEM;
 179
 180         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 181                 sds_ring = &recv_ctx->sds_rings[ring];
 182
 183                 if (ring == adapter->max_sds_rings - 1)
 184                         netif_napi_add(netdev, &sds_ring->napi, qlcnic_poll,
 185                                 QLCNIC_NETDEV_WEIGHT/adapter->max_sds_rings);
 186                 else
 187                         netif_napi_add(netdev, &sds_ring->napi,
 188                                 qlcnic_rx_poll, QLCNIC_NETDEV_WEIGHT*2);
 189         }
 190
 191         return 0;
 192 }
 193
 194 static void
 195 qlcnic_napi_del(struct qlcnic_adapter *adapter)
 196 {
 197         int ring;
 198         struct qlcnic_host_sds_ring *sds_ring;
 199         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
 200
 201         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 202                 sds_ring = &recv_ctx->sds_rings[ring];
 203                 netif_napi_del(&sds_ring->napi);
 204         }
 205
 206         qlcnic_free_sds_rings(adapter->recv_ctx);
 207 }
 208
 209 static void
 210 qlcnic_napi_enable(struct qlcnic_adapter *adapter)
 211 {
 212         int ring;
 213         struct qlcnic_host_sds_ring *sds_ring;
 214         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
 215
 216         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
 217                 return;
 218
 219         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 220                 sds_ring = &recv_ctx->sds_rings[ring];
 221                 napi_enable(&sds_ring->napi);
 222                 qlcnic_enable_int(sds_ring);
 223         }
 224 }
 225
 226 static void
 227 qlcnic_napi_disable(struct qlcnic_adapter *adapter)
 228 {
 229         int ring;
 230         struct qlcnic_host_sds_ring *sds_ring;
 231         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
 232
 233         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
 234                 return;
 235
 236         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 237                 sds_ring = &recv_ctx->sds_rings[ring];
 238                 qlcnic_disable_int(sds_ring);
 239                 napi_synchronize(&sds_ring->napi);
 240                 napi_disable(&sds_ring->napi);
 241         }
 242 }
 243
 244 static void qlcnic_clear_stats(struct qlcnic_adapter *adapter)
 245 {
 246         memset(&adapter->stats, 0, sizeof(adapter->stats));
 247 }
 248
 249 static void qlcnic_set_msix_bit(struct pci_dev *pdev, int enable)
 250 {
 251         u32 control;
 252         int pos;
 253
 254         pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
 255         if (pos) {
 256                 pci_read_config_dword(pdev, pos, &control);
 257                 if (enable)
 258                         control |= PCI_MSIX_FLAGS_ENABLE;
 259                 else
 260                         control = 0;
 261                 pci_write_config_dword(pdev, pos, control);
 262         }
 263 }
 264
 265 static void qlcnic_init_msix_entries(struct qlcnic_adapter *adapter, int count)
 266 {
 267         int i;
 268
 269         for (i = 0; i < count; i++)
 270                 adapter->msix_entries[i].entry = i;
 271 }
 272
 273 static int
 274 qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
 275 {
 276         u8 mac_addr[ETH_ALEN];
 277         struct net_device *netdev = adapter->netdev;
 278         struct pci_dev *pdev = adapter->pdev;
 279
 280         if (qlcnic_get_mac_address(adapter, mac_addr) != 0)
 281                 return -EIO;
 282
 283         memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
 284         memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
 285         memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
 286
 287         /* set station address */
 288
 289         if (!is_valid_ether_addr(netdev->perm_addr))
 290                 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
 291                                         netdev->dev_addr);
 292
 293         return 0;
 294 }
 295
 296 static int qlcnic_set_mac(struct net_device *netdev, void *p)
 297 {
 298         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 299         struct sockaddr *addr = p;
 300
 301         if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
 302                 return -EOPNOTSUPP;
 303
 304         if (!is_valid_ether_addr(addr->sa_data))
 305                 return -EINVAL;
 306
 307         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 308                 netif_device_detach(netdev);
 309                 qlcnic_napi_disable(adapter);
 310         }
 311
 312         memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
 313         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 314         qlcnic_set_multi(adapter->netdev);
 315
 316         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 317                 netif_device_attach(netdev);
 318                 qlcnic_napi_enable(adapter);
 319         }
 320         return 0;
 321 }
 322
 323 static const struct net_device_ops qlcnic_netdev_ops = {
 324         .ndo_open          = qlcnic_open,
 325         .ndo_stop          = qlcnic_close,
 326         .ndo_start_xmit    = qlcnic_xmit_frame,
 327         .ndo_get_stats     = qlcnic_get_stats,
 328         .ndo_validate_addr = eth_validate_addr,
 329         .ndo_set_multicast_list = qlcnic_set_multi,
 330         .ndo_set_mac_address    = qlcnic_set_mac,
 331         .ndo_change_mtu    = qlcnic_change_mtu,
 332         .ndo_fix_features  = qlcnic_fix_features,
 333         .ndo_set_features  = qlcnic_set_features,
 334         .ndo_tx_timeout    = qlcnic_tx_timeout,
 335         .ndo_vlan_rx_add_vid    = qlcnic_vlan_rx_add,
 336         .ndo_vlan_rx_kill_vid   = qlcnic_vlan_rx_del,
 337 #ifdef CONFIG_NET_POLL_CONTROLLER
 338         .ndo_poll_controller = qlcnic_poll_controller,
 339 #endif
 340 };
 341
 342 static struct qlcnic_nic_template qlcnic_ops = {
 343         .config_bridged_mode = qlcnic_config_bridged_mode,
 344         .config_led = qlcnic_config_led,
 345         .start_firmware = qlcnic_start_firmware
 346 };
 347
 348 static struct qlcnic_nic_template qlcnic_vf_ops = {
 349         .config_bridged_mode = qlcnicvf_config_bridged_mode,
 350         .config_led = qlcnicvf_config_led,
 351         .start_firmware = qlcnicvf_start_firmware
 352 };
 353
 354 static int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 355 {
 356         struct pci_dev *pdev = adapter->pdev;
 357         int err = -1;
 358
 359         adapter->max_sds_rings = 1;
 360         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 361         qlcnic_set_msix_bit(pdev, 0);
 362
 363         if (adapter->msix_supported) {
 364  enable_msix:
 365                 qlcnic_init_msix_entries(adapter, num_msix);
 366                 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
 367                 if (err == 0) {
 368                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 369                         qlcnic_set_msix_bit(pdev, 1);
 370
 371                         adapter->max_sds_rings = num_msix;
 372
 373                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 374                         return err;
 375                 }
 376                 if (err > 0) {
 377                         num_msix = rounddown_pow_of_two(err);
 378                         if (num_msix)
 379                                 goto enable_msix;
 380                 }
 381         }
 382         return err;
 383 }
 384
 385
 386 static void qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
 387 {
 388         const struct qlcnic_legacy_intr_set *legacy_intrp;
 389         struct pci_dev *pdev = adapter->pdev;
 390
 391         if (use_msi && !pci_enable_msi(pdev)) {
 392                 adapter->flags |= QLCNIC_MSI_ENABLED;
 393                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
 394                                 msi_tgt_status[adapter->ahw->pci_func]);
 395                 dev_info(&pdev->dev, "using msi interrupts\n");
 396                 adapter->msix_entries[0].vector = pdev->irq;
 397                 return;
 398         }
 399
 400         legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
 401
 402         adapter->int_vec_bit = legacy_intrp->int_vec_bit;
 403         adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
 404                         legacy_intrp->tgt_status_reg);
 405         adapter->tgt_mask_reg = qlcnic_get_ioaddr(adapter,
 406                         legacy_intrp->tgt_mask_reg);
 407         adapter->isr_int_vec = qlcnic_get_ioaddr(adapter, ISR_INT_VECTOR);
 408
 409         adapter->crb_int_state_reg = qlcnic_get_ioaddr(adapter,
 410                         ISR_INT_STATE_REG);
 411         dev_info(&pdev->dev, "using legacy interrupts\n");
 412         adapter->msix_entries[0].vector = pdev->irq;
 413 }
 414
 415 static void
 416 qlcnic_setup_intr(struct qlcnic_adapter *adapter)
 417 {
 418         int num_msix;
 419
 420         if (adapter->msix_supported) {
 421                 num_msix = rounddown_pow_of_two(min_t(int, num_online_cpus(),
 422                                 QLCNIC_DEF_NUM_STS_DESC_RINGS));
 423         } else
 424                 num_msix = 1;
 425
 426         if (!qlcnic_enable_msix(adapter, num_msix))
 427                 return;
 428
 429         qlcnic_enable_msi_legacy(adapter);
 430 }
 431
 432 static void
 433 qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 434 {
 435         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 436                 pci_disable_msix(adapter->pdev);
 437         if (adapter->flags & QLCNIC_MSI_ENABLED)
 438                 pci_disable_msi(adapter->pdev);
 439 }
 440
 441 static void
 442 qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter)
 443 {
 444         if (adapter->ahw->pci_base0 != NULL)
 445                 iounmap(adapter->ahw->pci_base0);
 446 }
 447
 448 static int
 449 qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 450 {
 451         struct qlcnic_pci_info *pci_info;
 452         int i, ret = 0;
 453         u8 pfn;
 454
 455         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 456         if (!pci_info)
 457                 return -ENOMEM;
 458
 459         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
 460                                 QLCNIC_MAX_PCI_FUNC, GFP_KERNEL);
 461         if (!adapter->npars) {
 462                 ret = -ENOMEM;
 463                 goto err_pci_info;
 464         }
 465
 466         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
 467                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
 468         if (!adapter->eswitch) {
 469                 ret = -ENOMEM;
 470                 goto err_npars;
 471         }
 472
 473         ret = qlcnic_get_pci_info(adapter, pci_info);
 474         if (ret)
 475                 goto err_eswitch;
 476
 477         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 478                 pfn = pci_info[i].id;
 479                 if (pfn > QLCNIC_MAX_PCI_FUNC) {
 480                         ret = QL_STATUS_INVALID_PARAM;
 481                         goto err_eswitch;
 482                 }
 483                 adapter->npars[pfn].active = (u8)pci_info[i].active;
 484                 adapter->npars[pfn].type = (u8)pci_info[i].type;
 485                 adapter->npars[pfn].phy_port = (u8)pci_info[i].default_port;
 486                 adapter->npars[pfn].min_bw = pci_info[i].tx_min_bw;
 487                 adapter->npars[pfn].max_bw = pci_info[i].tx_max_bw;
 488         }
 489
 490         for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
 491                 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
 492
 493         kfree(pci_info);
 494         return 0;
 495
 496 err_eswitch:
 497         kfree(adapter->eswitch);
 498         adapter->eswitch = NULL;
 499 err_npars:
 500         kfree(adapter->npars);
 501         adapter->npars = NULL;
 502 err_pci_info:
 503         kfree(pci_info);
 504
 505         return ret;
 506 }
 507
 508 static int
 509 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
 510 {
 511         u8 id;
 512         u32 ref_count;
 513         int i, ret = 1;
 514         u32 data = QLCNIC_MGMT_FUNC;
 515         void __iomem *priv_op = adapter->ahw->pci_base0 + QLCNIC_DRV_OP_MODE;
 516
 517         /* If other drivers are not in use set their privilege level */
 518         ref_count = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
 519         ret = qlcnic_api_lock(adapter);
 520         if (ret)
 521                 goto err_lock;
 522
 523         if (qlcnic_config_npars) {
 524                 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 525                         id = i;
 526                         if (adapter->npars[i].type != QLCNIC_TYPE_NIC ||
 527                                 id == adapter->ahw->pci_func)
 528                                 continue;
 529                         data |= (qlcnic_config_npars &
 530                                         QLC_DEV_SET_DRV(0xf, id));
 531                 }
 532         } else {
 533                 data = readl(priv_op);
 534                 data = (data & ~QLC_DEV_SET_DRV(0xf, adapter->ahw->pci_func)) |
 535                         (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
 536                         adapter->ahw->pci_func));
 537         }
 538         writel(data, priv_op);
 539         qlcnic_api_unlock(adapter);
 540 err_lock:
 541         return ret;
 542 }
 543
 544 static void
 545 qlcnic_check_vf(struct qlcnic_adapter *adapter)
 546 {
 547         void __iomem *msix_base_addr;
 548         void __iomem *priv_op;
 549         u32 func;
 550         u32 msix_base;
 551         u32 op_mode, priv_level;
 552
 553         /* Determine FW API version */
 554         adapter->fw_hal_version = readl(adapter->ahw->pci_base0 +
 555                                         QLCNIC_FW_API);
 556
 557         /* Find PCI function number */
 558         pci_read_config_dword(adapter->pdev, QLCNIC_MSIX_TABLE_OFFSET, &func);
 559         msix_base_addr = adapter->ahw->pci_base0 + QLCNIC_MSIX_BASE;
 560         msix_base = readl(msix_base_addr);
 561         func = (func - msix_base)/QLCNIC_MSIX_TBL_PGSIZE;
 562         adapter->ahw->pci_func = func;
 563
 564         /* Determine function privilege level */
 565         priv_op = adapter->ahw->pci_base0 + QLCNIC_DRV_OP_MODE;
 566         op_mode = readl(priv_op);
 567         if (op_mode == QLC_DEV_DRV_DEFAULT)
 568                 priv_level = QLCNIC_MGMT_FUNC;
 569         else
 570                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
 571
 572         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
 573                 adapter->op_mode = QLCNIC_NON_PRIV_FUNC;
 574                 dev_info(&adapter->pdev->dev,
 575                         "HAL Version: %d Non Privileged function\n",
 576                         adapter->fw_hal_version);
 577                 adapter->nic_ops = &qlcnic_vf_ops;
 578         } else
 579                 adapter->nic_ops = &qlcnic_ops;
 580 }
 581
 582 static int
 583 qlcnic_setup_pci_map(struct qlcnic_adapter *adapter)
 584 {
 585         void __iomem *mem_ptr0 = NULL;
 586         resource_size_t mem_base;
 587         unsigned long mem_len, pci_len0 = 0;
 588
 589         struct pci_dev *pdev = adapter->pdev;
 590
 591         /* remap phys address */
 592         mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
 593         mem_len = pci_resource_len(pdev, 0);
 594
 595         if (mem_len == QLCNIC_PCI_2MB_SIZE) {
 596
 597                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
 598                 if (mem_ptr0 == NULL) {
 599                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
 600                         return -EIO;
 601                 }
 602                 pci_len0 = mem_len;
 603         } else {
 604                 return -EIO;
 605         }
 606
 607         dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
 608
 609         adapter->ahw->pci_base0 = mem_ptr0;
 610         adapter->ahw->pci_len0 = pci_len0;
 611
 612         qlcnic_check_vf(adapter);
 613
 614         adapter->ahw->ocm_win_crb = qlcnic_get_ioaddr(adapter,
 615                 QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(
 616                         adapter->ahw->pci_func)));
 617
 618         return 0;
 619 }
 620
 621 static void get_brd_name(struct qlcnic_adapter *adapter, char *name)
 622 {
 623         struct pci_dev *pdev = adapter->pdev;
 624         int i, found = 0;
 625
 626         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
 627                 if (qlcnic_boards[i].vendor == pdev->vendor &&
 628                         qlcnic_boards[i].device == pdev->device &&
 629                         qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
 630                         qlcnic_boards[i].sub_device == pdev->subsystem_device) {
 631                                 sprintf(name, "%pM: %s" ,
 632                                         adapter->mac_addr,
 633                                         qlcnic_boards[i].short_name);
 634                                 found = 1;
 635                                 break;
 636                 }
 637
 638         }
 639
 640         if (!found)
 641                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
 642 }
 643
 644 static void
 645 qlcnic_check_options(struct qlcnic_adapter *adapter)
 646 {
 647         u32 fw_major, fw_minor, fw_build;
 648         struct pci_dev *pdev = adapter->pdev;
 649
 650         fw_major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
 651         fw_minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
 652         fw_build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
 653
 654         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
 655
 656         dev_info(&pdev->dev, "firmware v%d.%d.%d\n",
 657                         fw_major, fw_minor, fw_build);
 658         if (adapter->ahw->port_type == QLCNIC_XGBE) {
 659                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 660                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
 661                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
 662                 } else {
 663                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
 664                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
 665                 }
 666
 667                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 668                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 669
 670         } else if (adapter->ahw->port_type == QLCNIC_GBE) {
 671                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
 672                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 673                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 674                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
 675         }
 676
 677         adapter->msix_supported = !!use_msi_x;
 678
 679         adapter->num_txd = MAX_CMD_DESCRIPTORS;
 680
 681         adapter->max_rds_rings = MAX_RDS_RINGS;
 682 }
 683
 684 static int
 685 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
 686 {
 687         int err;
 688         struct qlcnic_info nic_info;
 689
 690         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
 691         if (err)
 692                 return err;
 693
 694         adapter->physical_port = (u8)nic_info.phys_port;
 695         adapter->switch_mode = nic_info.switch_mode;
 696         adapter->max_tx_ques = nic_info.max_tx_ques;
 697         adapter->max_rx_ques = nic_info.max_rx_ques;
 698         adapter->capabilities = nic_info.capabilities;
 699         adapter->max_mac_filters = nic_info.max_mac_filters;
 700         adapter->max_mtu = nic_info.max_mtu;
 701
 702         if (adapter->capabilities & BIT_6)
 703                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
 704         else
 705                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
 706
 707         return err;
 708 }
 709
 710 static void
 711 qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
 712                 struct qlcnic_esw_func_cfg *esw_cfg)
 713 {
 714         if (esw_cfg->discard_tagged)
 715                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
 716         else
 717                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
 718
 719         if (esw_cfg->vlan_id)
 720                 adapter->pvid = esw_cfg->vlan_id;
 721         else
 722                 adapter->pvid = 0;
 723 }
 724
 725 static void
 726 qlcnic_vlan_rx_add(struct net_device *netdev, u16 vid)
 727 {
 728         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 729         set_bit(vid, adapter->vlans);
 730 }
 731
 732 static void
 733 qlcnic_vlan_rx_del(struct net_device *netdev, u16 vid)
 734 {
 735         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 736
 737         qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
 738         clear_bit(vid, adapter->vlans);
 739 }
 740
 741 static void
 742 qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
 743                 struct qlcnic_esw_func_cfg *esw_cfg)
 744 {
 745         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
 746                                 QLCNIC_PROMISC_DISABLED);
 747
 748         if (esw_cfg->mac_anti_spoof)
 749                 adapter->flags |= QLCNIC_MACSPOOF;
 750
 751         if (!esw_cfg->mac_override)
 752                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
 753
 754         if (!esw_cfg->promisc_mode)
 755                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
 756
 757         qlcnic_set_netdev_features(adapter, esw_cfg);
 758 }
 759
 760 static int
 761 qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
 762 {
 763         struct qlcnic_esw_func_cfg esw_cfg;
 764
 765         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
 766                 return 0;
 767
 768         esw_cfg.pci_func = adapter->ahw->pci_func;
 769         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
 770                         return -EIO;
 771         qlcnic_set_vlan_config(adapter, &esw_cfg);
 772         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
 773
 774         return 0;
 775 }
 776
 777 static void
 778 qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
 779                 struct qlcnic_esw_func_cfg *esw_cfg)
 780 {
 781         struct net_device *netdev = adapter->netdev;
 782         unsigned long features, vlan_features;
 783
 784         features = (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
 785                         NETIF_F_IPV6_CSUM | NETIF_F_GRO);
 786         vlan_features = (NETIF_F_SG | NETIF_F_IP_CSUM |
 787                         NETIF_F_IPV6_CSUM | NETIF_F_HW_VLAN_FILTER);
 788
 789         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO) {
 790                 features |= (NETIF_F_TSO | NETIF_F_TSO6);
 791                 vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
 792         }
 793
 794         if (netdev->features & NETIF_F_LRO)
 795                 features |= NETIF_F_LRO;
 796
 797         if (esw_cfg->offload_flags & BIT_0) {
 798                 netdev->features |= features;
 799                 if (!(esw_cfg->offload_flags & BIT_1))
 800                         netdev->features &= ~NETIF_F_TSO;
 801                 if (!(esw_cfg->offload_flags & BIT_2))
 802                         netdev->features &= ~NETIF_F_TSO6;
 803         } else {
 804                 netdev->features &= ~features;
 805         }
 806
 807         netdev->vlan_features = (features & vlan_features);
 808 }
 809
 810 static int
 811 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
 812 {
 813         void __iomem *priv_op;
 814         u32 op_mode, priv_level;
 815         int err = 0;
 816
 817         err = qlcnic_initialize_nic(adapter);
 818         if (err)
 819                 return err;
 820
 821         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
 822                 return 0;
 823
 824         priv_op = adapter->ahw->pci_base0 + QLCNIC_DRV_OP_MODE;
 825         op_mode = readl(priv_op);
 826         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
 827
 828         if (op_mode == QLC_DEV_DRV_DEFAULT)
 829                 priv_level = QLCNIC_MGMT_FUNC;
 830         else
 831                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
 832
 833         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 834                 if (priv_level == QLCNIC_MGMT_FUNC) {
 835                         adapter->op_mode = QLCNIC_MGMT_FUNC;
 836                         err = qlcnic_init_pci_info(adapter);
 837                         if (err)
 838                                 return err;
 839                         /* Set privilege level for other functions */
 840                         qlcnic_set_function_modes(adapter);
 841                         dev_info(&adapter->pdev->dev,
 842                                 "HAL Version: %d, Management function\n",
 843                                 adapter->fw_hal_version);
 844                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
 845                         adapter->op_mode = QLCNIC_PRIV_FUNC;
 846                         dev_info(&adapter->pdev->dev,
 847                                 "HAL Version: %d, Privileged function\n",
 848                                 adapter->fw_hal_version);
 849                 }
 850         }
 851
 852         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
 853
 854         return err;
 855 }
 856
 857 static int
 858 qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
 859 {
 860         struct qlcnic_esw_func_cfg esw_cfg;
 861         struct qlcnic_npar_info *npar;
 862         u8 i;
 863
 864         if (adapter->need_fw_reset)
 865                 return 0;
 866
 867         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 868                 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
 869                         continue;
 870                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
 871                 esw_cfg.pci_func = i;
 872                 esw_cfg.offload_flags = BIT_0;
 873                 esw_cfg.mac_override = BIT_0;
 874                 esw_cfg.promisc_mode = BIT_0;
 875                 if (adapter->capabilities  & QLCNIC_FW_CAPABILITY_TSO)
 876                         esw_cfg.offload_flags |= (BIT_1 | BIT_2);
 877                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
 878                         return -EIO;
 879                 npar = &adapter->npars[i];
 880                 npar->pvid = esw_cfg.vlan_id;
 881                 npar->mac_override = esw_cfg.mac_override;
 882                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
 883                 npar->discard_tagged = esw_cfg.discard_tagged;
 884                 npar->promisc_mode = esw_cfg.promisc_mode;
 885                 npar->offload_flags = esw_cfg.offload_flags;
 886         }
 887
 888         return 0;
 889 }
 890
 891 static int
 892 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
 893                         struct qlcnic_npar_info *npar, int pci_func)
 894 {
 895         struct qlcnic_esw_func_cfg esw_cfg;
 896         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
 897         esw_cfg.pci_func = pci_func;
 898         esw_cfg.vlan_id = npar->pvid;
 899         esw_cfg.mac_override = npar->mac_override;
 900         esw_cfg.discard_tagged = npar->discard_tagged;
 901         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
 902         esw_cfg.offload_flags = npar->offload_flags;
 903         esw_cfg.promisc_mode = npar->promisc_mode;
 904         if (qlcnic_config_switch_port(adapter, &esw_cfg))
 905                 return -EIO;
 906
 907         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
 908         if (qlcnic_config_switch_port(adapter, &esw_cfg))
 909                 return -EIO;
 910
 911         return 0;
 912 }
 913
 914 static int
 915 qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
 916 {
 917         int i, err;
 918         struct qlcnic_npar_info *npar;
 919         struct qlcnic_info nic_info;
 920
 921         if (!adapter->need_fw_reset)
 922                 return 0;
 923
 924         /* Set the NPAR config data after FW reset */
 925         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 926                 npar = &adapter->npars[i];
 927                 if (npar->type != QLCNIC_TYPE_NIC)
 928                         continue;
 929                 err = qlcnic_get_nic_info(adapter, &nic_info, i);
 930                 if (err)
 931                         return err;
 932                 nic_info.min_tx_bw = npar->min_bw;
 933                 nic_info.max_tx_bw = npar->max_bw;
 934                 err = qlcnic_set_nic_info(adapter, &nic_info);
 935                 if (err)
 936                         return err;
 937
 938                 if (npar->enable_pm) {
 939                         err = qlcnic_config_port_mirroring(adapter,
 940                                                         npar->dest_npar, 1, i);
 941                         if (err)
 942                                 return err;
 943                 }
 944                 err = qlcnic_reset_eswitch_config(adapter, npar, i);
 945                 if (err)
 946                         return err;
 947         }
 948         return 0;
 949 }
 950
 951 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
 952 {
 953         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
 954         u32 npar_state;
 955
 956         if (adapter->op_mode == QLCNIC_MGMT_FUNC)
 957                 return 0;
 958
 959         npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
 960         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
 961                 msleep(1000);
 962                 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
 963         }
 964         if (!npar_opt_timeo) {
 965                 dev_err(&adapter->pdev->dev,
 966                         "Waiting for NPAR state to opertional timeout\n");
 967                 return -EIO;
 968         }
 969         return 0;
 970 }
 971
 972 static int
 973 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
 974 {
 975         int err;
 976
 977         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
 978                     adapter->op_mode != QLCNIC_MGMT_FUNC)
 979                 return 0;
 980
 981         err = qlcnic_set_default_offload_settings(adapter);
 982         if (err)
 983                 return err;
 984
 985         err = qlcnic_reset_npar_config(adapter);
 986         if (err)
 987                 return err;
 988
 989         qlcnic_dev_set_npar_ready(adapter);
 990
 991         return err;
 992 }
 993
 994 static int
 995 qlcnic_start_firmware(struct qlcnic_adapter *adapter)
 996 {
 997         int err;
 998
 999         err = qlcnic_can_start_firmware(adapter);
1000         if (err < 0)
1001                 return err;
1002         else if (!err)
1003                 goto check_fw_status;
1004
1005         if (load_fw_file)
1006                 qlcnic_request_firmware(adapter);
1007         else {
1008                 err = qlcnic_check_flash_fw_ver(adapter);
1009                 if (err)
1010                         goto err_out;
1011
1012                 adapter->fw_type = QLCNIC_FLASH_ROMIMAGE;
1013         }
1014
1015         err = qlcnic_need_fw_reset(adapter);
1016         if (err == 0)
1017                 goto check_fw_status;
1018
1019         err = qlcnic_pinit_from_rom(adapter);
1020         if (err)
1021                 goto err_out;
1022
1023         err = qlcnic_load_firmware(adapter);
1024         if (err)
1025                 goto err_out;
1026
1027         qlcnic_release_firmware(adapter);
1028         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1029
1030 check_fw_status:
1031         err = qlcnic_check_fw_status(adapter);
1032         if (err)
1033                 goto err_out;
1034
1035         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1036         qlcnic_idc_debug_info(adapter, 1);
1037
1038         err = qlcnic_check_eswitch_mode(adapter);
1039         if (err) {
1040                 dev_err(&adapter->pdev->dev,
1041                         "Memory allocation failed for eswitch\n");
1042                 goto err_out;
1043         }
1044         err = qlcnic_set_mgmt_operations(adapter);
1045         if (err)
1046                 goto err_out;
1047
1048         qlcnic_check_options(adapter);
1049         adapter->need_fw_reset = 0;
1050
1051         qlcnic_release_firmware(adapter);
1052         return 0;
1053
1054 err_out:
1055         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1056         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1057
1058         qlcnic_release_firmware(adapter);
1059         return err;
1060 }
1061
1062 static int
1063 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1064 {
1065         irq_handler_t handler;
1066         struct qlcnic_host_sds_ring *sds_ring;
1067         int err, ring;
1068
1069         unsigned long flags = 0;
1070         struct net_device *netdev = adapter->netdev;
1071         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1072
1073         if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1074                 handler = qlcnic_tmp_intr;
1075                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1076                         flags |= IRQF_SHARED;
1077
1078         } else {
1079                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1080                         handler = qlcnic_msix_intr;
1081                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1082                         handler = qlcnic_msi_intr;
1083                 else {
1084                         flags |= IRQF_SHARED;
1085                         handler = qlcnic_intr;
1086                 }
1087         }
1088         adapter->irq = netdev->irq;
1089
1090         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1091                 sds_ring = &recv_ctx->sds_rings[ring];
1092                 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
1093                 err = request_irq(sds_ring->irq, handler,
1094                                   flags, sds_ring->name, sds_ring);
1095                 if (err)
1096                         return err;
1097         }
1098
1099         return 0;
1100 }
1101
1102 static void
1103 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1104 {
1105         int ring;
1106         struct qlcnic_host_sds_ring *sds_ring;
1107
1108         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1109
1110         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1111                 sds_ring = &recv_ctx->sds_rings[ring];
1112                 free_irq(sds_ring->irq, sds_ring);
1113         }
1114 }
1115
1116 static int
1117 __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1118 {
1119         int ring;
1120         struct qlcnic_host_rds_ring *rds_ring;
1121
1122         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1123                 return -EIO;
1124
1125         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1126                 return 0;
1127         if (qlcnic_set_eswitch_port_config(adapter))
1128                 return -EIO;
1129
1130         if (qlcnic_fw_create_ctx(adapter))
1131                 return -EIO;
1132
1133         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1134                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1135                 qlcnic_post_rx_buffers(adapter, rds_ring);
1136         }
1137
1138         qlcnic_set_multi(netdev);
1139         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1140
1141         adapter->ahw->linkup = 0;
1142
1143         if (adapter->max_sds_rings > 1)
1144                 qlcnic_config_rss(adapter, 1);
1145
1146         qlcnic_config_intr_coalesce(adapter);
1147
1148         if (netdev->features & NETIF_F_LRO)
1149                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1150
1151         qlcnic_napi_enable(adapter);
1152
1153         qlcnic_linkevent_request(adapter, 1);
1154
1155         adapter->reset_context = 0;
1156         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1157         return 0;
1158 }
1159
1160 /* Usage: During resume and firmware recovery module.*/
1161
1162 static int
1163 qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1164 {
1165         int err = 0;
1166
1167         rtnl_lock();
1168         if (netif_running(netdev))
1169                 err = __qlcnic_up(adapter, netdev);
1170         rtnl_unlock();
1171
1172         return err;
1173 }
1174
1175 static void
1176 __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1177 {
1178         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1179                 return;
1180
1181         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1182                 return;
1183
1184         smp_mb();
1185         spin_lock(&adapter->tx_clean_lock);
1186         netif_carrier_off(netdev);
1187         netif_tx_disable(netdev);
1188
1189         qlcnic_free_mac_list(adapter);
1190
1191         if (adapter->fhash.fnum)
1192                 qlcnic_delete_lb_filters(adapter);
1193
1194         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1195
1196         qlcnic_napi_disable(adapter);
1197
1198         qlcnic_fw_destroy_ctx(adapter);
1199
1200         qlcnic_reset_rx_buffers_list(adapter);
1201         qlcnic_release_tx_buffers(adapter);
1202         spin_unlock(&adapter->tx_clean_lock);
1203 }
1204
1205 /* Usage: During suspend and firmware recovery module */
1206
1207 static void
1208 qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1209 {
1210         rtnl_lock();
1211         if (netif_running(netdev))
1212                 __qlcnic_down(adapter, netdev);
1213         rtnl_unlock();
1214
1215 }
1216
1217 static int
1218 qlcnic_attach(struct qlcnic_adapter *adapter)
1219 {
1220         struct net_device *netdev = adapter->netdev;
1221         struct pci_dev *pdev = adapter->pdev;
1222         int err;
1223
1224         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1225                 return 0;
1226
1227         err = qlcnic_napi_add(adapter, netdev);
1228         if (err)
1229                 return err;
1230
1231         err = qlcnic_alloc_sw_resources(adapter);
1232         if (err) {
1233                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1234                 goto err_out_napi_del;
1235         }
1236
1237         err = qlcnic_alloc_hw_resources(adapter);
1238         if (err) {
1239                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1240                 goto err_out_free_sw;
1241         }
1242
1243         err = qlcnic_request_irq(adapter);
1244         if (err) {
1245                 dev_err(&pdev->dev, "failed to setup interrupt\n");
1246                 goto err_out_free_hw;
1247         }
1248
1249         qlcnic_create_sysfs_entries(adapter);
1250
1251         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1252         return 0;
1253
1254 err_out_free_hw:
1255         qlcnic_free_hw_resources(adapter);
1256 err_out_free_sw:
1257         qlcnic_free_sw_resources(adapter);
1258 err_out_napi_del:
1259         qlcnic_napi_del(adapter);
1260         return err;
1261 }
1262
1263 static void
1264 qlcnic_detach(struct qlcnic_adapter *adapter)
1265 {
1266         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1267                 return;
1268
1269         qlcnic_remove_sysfs_entries(adapter);
1270
1271         qlcnic_free_hw_resources(adapter);
1272         qlcnic_release_rx_buffers(adapter);
1273         qlcnic_free_irq(adapter);
1274         qlcnic_napi_del(adapter);
1275         qlcnic_free_sw_resources(adapter);
1276
1277         adapter->is_up = 0;
1278 }
1279
1280 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1281 {
1282         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1283         struct qlcnic_host_sds_ring *sds_ring;
1284         int ring;
1285
1286         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1287         if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1288                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1289                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1290                         qlcnic_disable_int(sds_ring);
1291                 }
1292         }
1293
1294         qlcnic_fw_destroy_ctx(adapter);
1295
1296         qlcnic_detach(adapter);
1297
1298         adapter->diag_test = 0;
1299         adapter->max_sds_rings = max_sds_rings;
1300
1301         if (qlcnic_attach(adapter))
1302                 goto out;
1303
1304         if (netif_running(netdev))
1305                 __qlcnic_up(adapter, netdev);
1306 out:
1307         netif_device_attach(netdev);
1308 }
1309
1310 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
1311 {
1312         int err = 0;
1313         adapter->ahw = kzalloc(sizeof(struct qlcnic_hardware_context),
1314                                 GFP_KERNEL);
1315         if (!adapter->ahw) {
1316                 dev_err(&adapter->pdev->dev,
1317                         "Failed to allocate recv ctx resources for adapter\n");
1318                 err = -ENOMEM;
1319                 goto err_out;
1320         }
1321         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
1322                                 GFP_KERNEL);
1323         if (!adapter->recv_ctx) {
1324                 dev_err(&adapter->pdev->dev,
1325                         "Failed to allocate recv ctx resources for adapter\n");
1326                 kfree(adapter->ahw);
1327                 adapter->ahw = NULL;
1328                 err = -ENOMEM;
1329                 goto err_out;
1330         }
1331         /* Initialize interrupt coalesce parameters */
1332         adapter->ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1333         adapter->ahw->coal.rx_time_us = QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
1334         adapter->ahw->coal.rx_packets = QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
1335 err_out:
1336         return err;
1337 }
1338
1339 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
1340 {
1341         kfree(adapter->recv_ctx);
1342         adapter->recv_ctx = NULL;
1343
1344         if (adapter->ahw->fw_dump.tmpl_hdr) {
1345                 vfree(adapter->ahw->fw_dump.tmpl_hdr);
1346                 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1347         }
1348         kfree(adapter->ahw);
1349         adapter->ahw = NULL;
1350 }
1351
1352 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1353 {
1354         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1355         struct qlcnic_host_sds_ring *sds_ring;
1356         struct qlcnic_host_rds_ring *rds_ring;
1357         int ring;
1358         int ret;
1359
1360         netif_device_detach(netdev);
1361
1362         if (netif_running(netdev))
1363                 __qlcnic_down(adapter, netdev);
1364
1365         qlcnic_detach(adapter);
1366
1367         adapter->max_sds_rings = 1;
1368         adapter->diag_test = test;
1369
1370         ret = qlcnic_attach(adapter);
1371         if (ret) {
1372                 netif_device_attach(netdev);
1373                 return ret;
1374         }
1375
1376         ret = qlcnic_fw_create_ctx(adapter);
1377         if (ret) {
1378                 qlcnic_detach(adapter);
1379                 netif_device_attach(netdev);
1380                 return ret;
1381         }
1382
1383         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1384                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1385                 qlcnic_post_rx_buffers(adapter, rds_ring);
1386         }
1387
1388         if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1389                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1390                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1391                         qlcnic_enable_int(sds_ring);
1392                 }
1393         }
1394
1395         if (adapter->diag_test == QLCNIC_LOOPBACK_TEST) {
1396                 adapter->ahw->loopback_state = 0;
1397                 qlcnic_linkevent_request(adapter, 1);
1398         }
1399
1400         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1401
1402         return 0;
1403 }
1404
1405 /* Reset context in hardware only */
1406 static int
1407 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1408 {
1409         struct net_device *netdev = adapter->netdev;
1410
1411         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1412                 return -EBUSY;
1413
1414         netif_device_detach(netdev);
1415
1416         qlcnic_down(adapter, netdev);
1417
1418         qlcnic_up(adapter, netdev);
1419
1420         netif_device_attach(netdev);
1421
1422         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1423         return 0;
1424 }
1425
1426 int
1427 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1428 {
1429         int err = 0;
1430         struct net_device *netdev = adapter->netdev;
1431
1432         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1433                 return -EBUSY;
1434
1435         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1436
1437                 netif_device_detach(netdev);
1438
1439                 if (netif_running(netdev))
1440                         __qlcnic_down(adapter, netdev);
1441
1442                 qlcnic_detach(adapter);
1443
1444                 if (netif_running(netdev)) {
1445                         err = qlcnic_attach(adapter);
1446                         if (!err)
1447                                 __qlcnic_up(adapter, netdev);
1448                 }
1449
1450                 netif_device_attach(netdev);
1451         }
1452
1453         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1454         return err;
1455 }
1456
1457 static int
1458 qlcnic_setup_netdev(struct qlcnic_adapter *adapter,
1459                 struct net_device *netdev, u8 pci_using_dac)
1460 {
1461         int err;
1462         struct pci_dev *pdev = adapter->pdev;
1463
1464         adapter->mc_enabled = 0;
1465         adapter->max_mc_count = 38;
1466
1467         netdev->netdev_ops         = &qlcnic_netdev_ops;
1468         netdev->watchdog_timeo     = 5*HZ;
1469
1470         qlcnic_change_mtu(netdev, netdev->mtu);
1471
1472         SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1473
1474         netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM |
1475                 NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM;
1476
1477         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO)
1478                 netdev->hw_features |= NETIF_F_TSO | NETIF_F_TSO6;
1479         if (pci_using_dac)
1480                 netdev->hw_features |= NETIF_F_HIGHDMA;
1481
1482         netdev->vlan_features = netdev->hw_features;
1483
1484         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX)
1485                 netdev->hw_features |= NETIF_F_HW_VLAN_TX;
1486         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1487                 netdev->hw_features |= NETIF_F_LRO;
1488
1489         netdev->features |= netdev->hw_features |
1490                 NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER;
1491
1492         netdev->irq = adapter->msix_entries[0].vector;
1493
1494         err = register_netdev(netdev);
1495         if (err) {
1496                 dev_err(&pdev->dev, "failed to register net device\n");
1497                 return err;
1498         }
1499
1500         return 0;
1501 }
1502
1503 static int qlcnic_set_dma_mask(struct pci_dev *pdev, u8 *pci_using_dac)
1504 {
1505         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1506                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1507                 *pci_using_dac = 1;
1508         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1509                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1510                 *pci_using_dac = 0;
1511         else {
1512                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1513                 return -EIO;
1514         }
1515
1516         return 0;
1517 }
1518
1519 static int
1520 qlcnic_alloc_msix_entries(struct qlcnic_adapter *adapter, u16 count)
1521 {
1522         adapter->msix_entries = kcalloc(count, sizeof(struct msix_entry),
1523                                         GFP_KERNEL);
1524
1525         if (adapter->msix_entries)
1526                 return 0;
1527
1528         dev_err(&adapter->pdev->dev, "failed allocating msix_entries\n");
1529         return -ENOMEM;
1530 }
1531
1532 static int __devinit
1533 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1534 {
1535         struct net_device *netdev = NULL;
1536         struct qlcnic_adapter *adapter = NULL;
1537         int err;
1538         uint8_t revision_id;
1539         uint8_t pci_using_dac;
1540         char brd_name[QLCNIC_MAX_BOARD_NAME_LEN];
1541
1542         err = pci_enable_device(pdev);
1543         if (err)
1544                 return err;
1545
1546         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1547                 err = -ENODEV;
1548                 goto err_out_disable_pdev;
1549         }
1550
1551         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
1552         if (err)
1553                 goto err_out_disable_pdev;
1554
1555         err = pci_request_regions(pdev, qlcnic_driver_name);
1556         if (err)
1557                 goto err_out_disable_pdev;
1558
1559         pci_set_master(pdev);
1560         pci_enable_pcie_error_reporting(pdev);
1561
1562         netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1563         if (!netdev) {
1564                 dev_err(&pdev->dev, "failed to allocate net_device\n");
1565                 err = -ENOMEM;
1566                 goto err_out_free_res;
1567         }
1568
1569         SET_NETDEV_DEV(netdev, &pdev->dev);
1570
1571         adapter = netdev_priv(netdev);
1572         adapter->netdev  = netdev;
1573         adapter->pdev    = pdev;
1574
1575         if (qlcnic_alloc_adapter_resources(adapter))
1576                 goto err_out_free_netdev;
1577
1578         adapter->dev_rst_time = jiffies;
1579         revision_id = pdev->revision;
1580         adapter->ahw->revision_id = revision_id;
1581
1582         rwlock_init(&adapter->ahw->crb_lock);
1583         mutex_init(&adapter->ahw->mem_lock);
1584
1585         spin_lock_init(&adapter->tx_clean_lock);
1586         INIT_LIST_HEAD(&adapter->mac_list);
1587
1588         err = qlcnic_setup_pci_map(adapter);
1589         if (err)
1590                 goto err_out_free_hw;
1591
1592         /* This will be reset for mezz cards  */
1593         adapter->portnum = adapter->ahw->pci_func;
1594
1595         err = qlcnic_get_board_info(adapter);
1596         if (err) {
1597                 dev_err(&pdev->dev, "Error getting board config info.\n");
1598                 goto err_out_iounmap;
1599         }
1600
1601         err = qlcnic_setup_idc_param(adapter);
1602         if (err)
1603                 goto err_out_iounmap;
1604
1605         adapter->flags |= QLCNIC_NEED_FLR;
1606
1607         err = adapter->nic_ops->start_firmware(adapter);
1608         if (err) {
1609                 dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
1610                 goto err_out_decr_ref;
1611         }
1612
1613         /* Get FW dump template and store it */
1614         if (adapter->op_mode != QLCNIC_NON_PRIV_FUNC)
1615                 if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1616                         dev_info(&pdev->dev,
1617                                 "Supports FW dump capability\n");
1618
1619         if (qlcnic_read_mac_addr(adapter))
1620                 dev_warn(&pdev->dev, "failed to read mac addr\n");
1621
1622         if (adapter->portnum == 0) {
1623                 get_brd_name(adapter, brd_name);
1624
1625                 pr_info("%s: %s Board Chip rev 0x%x\n",
1626                                 module_name(THIS_MODULE),
1627                                 brd_name, adapter->ahw->revision_id);
1628         }
1629
1630         qlcnic_clear_stats(adapter);
1631
1632         err = qlcnic_alloc_msix_entries(adapter, adapter->max_rx_ques);
1633         if (err)
1634                 goto err_out_decr_ref;
1635
1636         qlcnic_setup_intr(adapter);
1637
1638         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
1639         if (err)
1640                 goto err_out_disable_msi;
1641
1642         pci_set_drvdata(pdev, adapter);
1643
1644         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1645
1646         switch (adapter->ahw->port_type) {
1647         case QLCNIC_GBE:
1648                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1649                                 adapter->netdev->name);
1650                 break;
1651         case QLCNIC_XGBE:
1652                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1653                                 adapter->netdev->name);
1654                 break;
1655         }
1656
1657         qlcnic_alloc_lb_filters_mem(adapter);
1658         qlcnic_create_diag_entries(adapter);
1659
1660         return 0;
1661
1662 err_out_disable_msi:
1663         qlcnic_teardown_intr(adapter);
1664         kfree(adapter->msix_entries);
1665
1666 err_out_decr_ref:
1667         qlcnic_clr_all_drv_state(adapter, 0);
1668
1669 err_out_iounmap:
1670         qlcnic_cleanup_pci_map(adapter);
1671
1672 err_out_free_hw:
1673         qlcnic_free_adapter_resources(adapter);
1674
1675 err_out_free_netdev:
1676         free_netdev(netdev);
1677
1678 err_out_free_res:
1679         pci_release_regions(pdev);
1680
1681 err_out_disable_pdev:
1682         pci_set_drvdata(pdev, NULL);
1683         pci_disable_device(pdev);
1684         return err;
1685 }
1686
1687 static void __devexit qlcnic_remove(struct pci_dev *pdev)
1688 {
1689         struct qlcnic_adapter *adapter;
1690         struct net_device *netdev;
1691
1692         adapter = pci_get_drvdata(pdev);
1693         if (adapter == NULL)
1694                 return;
1695
1696         netdev = adapter->netdev;
1697
1698         qlcnic_cancel_fw_work(adapter);
1699
1700         unregister_netdev(netdev);
1701
1702         qlcnic_detach(adapter);
1703
1704         if (adapter->npars != NULL)
1705                 kfree(adapter->npars);
1706         if (adapter->eswitch != NULL)
1707                 kfree(adapter->eswitch);
1708
1709         qlcnic_clr_all_drv_state(adapter, 0);
1710
1711         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1712
1713         qlcnic_free_lb_filters_mem(adapter);
1714
1715         qlcnic_teardown_intr(adapter);
1716         kfree(adapter->msix_entries);
1717
1718         qlcnic_remove_diag_entries(adapter);
1719
1720         qlcnic_cleanup_pci_map(adapter);
1721
1722         qlcnic_release_firmware(adapter);
1723
1724         pci_disable_pcie_error_reporting(pdev);
1725         pci_release_regions(pdev);
1726         pci_disable_device(pdev);
1727         pci_set_drvdata(pdev, NULL);
1728
1729         qlcnic_free_adapter_resources(adapter);
1730         free_netdev(netdev);
1731 }
1732 static int __qlcnic_shutdown(struct pci_dev *pdev)
1733 {
1734         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1735         struct net_device *netdev = adapter->netdev;
1736         int retval;
1737
1738         netif_device_detach(netdev);
1739
1740         qlcnic_cancel_fw_work(adapter);
1741
1742         if (netif_running(netdev))
1743                 qlcnic_down(adapter, netdev);
1744
1745         qlcnic_clr_all_drv_state(adapter, 0);
1746
1747         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1748
1749         retval = pci_save_state(pdev);
1750         if (retval)
1751                 return retval;
1752
1753         if (qlcnic_wol_supported(adapter)) {
1754                 pci_enable_wake(pdev, PCI_D3cold, 1);
1755                 pci_enable_wake(pdev, PCI_D3hot, 1);
1756         }
1757
1758         return 0;
1759 }
1760
1761 static void qlcnic_shutdown(struct pci_dev *pdev)
1762 {
1763         if (__qlcnic_shutdown(pdev))
1764                 return;
1765
1766         pci_disable_device(pdev);
1767 }
1768
1769 #ifdef CONFIG_PM
1770 static int
1771 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
1772 {
1773         int retval;
1774
1775         retval = __qlcnic_shutdown(pdev);
1776         if (retval)
1777                 return retval;
1778
1779         pci_set_power_state(pdev, pci_choose_state(pdev, state));
1780         return 0;
1781 }
1782
1783 static int
1784 qlcnic_resume(struct pci_dev *pdev)
1785 {
1786         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1787         struct net_device *netdev = adapter->netdev;
1788         int err;
1789
1790         err = pci_enable_device(pdev);
1791         if (err)
1792                 return err;
1793
1794         pci_set_power_state(pdev, PCI_D0);
1795         pci_set_master(pdev);
1796         pci_restore_state(pdev);
1797
1798         err = adapter->nic_ops->start_firmware(adapter);
1799         if (err) {
1800                 dev_err(&pdev->dev, "failed to start firmware\n");
1801                 return err;
1802         }
1803
1804         if (netif_running(netdev)) {
1805                 err = qlcnic_up(adapter, netdev);
1806                 if (err)
1807                         goto done;
1808
1809                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1810         }
1811 done:
1812         netif_device_attach(netdev);
1813         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1814         return 0;
1815 }
1816 #endif
1817
1818 static int qlcnic_open(struct net_device *netdev)
1819 {
1820         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1821         int err;
1822
1823         netif_carrier_off(netdev);
1824
1825         err = qlcnic_attach(adapter);
1826         if (err)
1827                 return err;
1828
1829         err = __qlcnic_up(adapter, netdev);
1830         if (err)
1831                 goto err_out;
1832
1833         netif_start_queue(netdev);
1834
1835         return 0;
1836
1837 err_out:
1838         qlcnic_detach(adapter);
1839         return err;
1840 }
1841
1842 /*
1843  * qlcnic_close - Disables a network interface entry point
1844  */
1845 static int qlcnic_close(struct net_device *netdev)
1846 {
1847         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1848
1849         __qlcnic_down(adapter, netdev);
1850         return 0;
1851 }
1852
1853 static void
1854 qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
1855 {
1856         void *head;
1857         int i;
1858
1859         if (!qlcnic_mac_learn)
1860                 return;
1861
1862         spin_lock_init(&adapter->mac_learn_lock);
1863
1864         head = kcalloc(QLCNIC_LB_MAX_FILTERS, sizeof(struct hlist_head),
1865                                                                 GFP_KERNEL);
1866         if (!head)
1867                 return;
1868
1869         adapter->fhash.fmax = QLCNIC_LB_MAX_FILTERS;
1870         adapter->fhash.fhead = head;
1871
1872         for (i = 0; i < adapter->fhash.fmax; i++)
1873                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
1874 }
1875
1876 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
1877 {
1878         if (adapter->fhash.fmax && adapter->fhash.fhead)
1879                 kfree(adapter->fhash.fhead);
1880
1881         adapter->fhash.fhead = NULL;
1882         adapter->fhash.fmax = 0;
1883 }
1884
1885 static void qlcnic_change_filter(struct qlcnic_adapter *adapter,
1886                 u64 uaddr, __le16 vlan_id, struct qlcnic_host_tx_ring *tx_ring)
1887 {
1888         struct cmd_desc_type0 *hwdesc;
1889         struct qlcnic_nic_req *req;
1890         struct qlcnic_mac_req *mac_req;
1891         struct qlcnic_vlan_req *vlan_req;
1892         u32 producer;
1893         u64 word;
1894
1895         producer = tx_ring->producer;
1896         hwdesc = &tx_ring->desc_head[tx_ring->producer];
1897
1898         req = (struct qlcnic_nic_req *)hwdesc;
1899         memset(req, 0, sizeof(struct qlcnic_nic_req));
1900         req->qhdr = cpu_to_le64(QLCNIC_REQUEST << 23);
1901
1902         word = QLCNIC_MAC_EVENT | ((u64)(adapter->portnum) << 16);
1903         req->req_hdr = cpu_to_le64(word);
1904
1905         mac_req = (struct qlcnic_mac_req *)&(req->words[0]);
1906         mac_req->op = vlan_id ? QLCNIC_MAC_VLAN_ADD : QLCNIC_MAC_ADD;
1907         memcpy(mac_req->mac_addr, &uaddr, ETH_ALEN);
1908
1909         vlan_req = (struct qlcnic_vlan_req *)&req->words[1];
1910         vlan_req->vlan_id = vlan_id;
1911
1912         tx_ring->producer = get_next_index(producer, tx_ring->num_desc);
1913         smp_mb();
1914 }
1915
1916 #define QLCNIC_MAC_HASH(MAC)\
1917         ((((MAC) & 0x70000) >> 0x10) | (((MAC) & 0x70000000000ULL) >> 0x25))
1918
1919 static void
1920 qlcnic_send_filter(struct qlcnic_adapter *adapter,
1921                 struct qlcnic_host_tx_ring *tx_ring,
1922                 struct cmd_desc_type0 *first_desc,
1923                 struct sk_buff *skb)
1924 {
1925         struct ethhdr *phdr = (struct ethhdr *)(skb->data);
1926         struct qlcnic_filter *fil, *tmp_fil;
1927         struct hlist_node *tmp_hnode, *n;
1928         struct hlist_head *head;
1929         u64 src_addr = 0;
1930         __le16 vlan_id = 0;
1931         u8 hindex;
1932
1933         if (!compare_ether_addr(phdr->h_source, adapter->mac_addr))
1934                 return;
1935
1936         if (adapter->fhash.fnum >= adapter->fhash.fmax)
1937                 return;
1938
1939         /* Only NPAR capable devices support vlan based learning*/
1940         if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
1941                 vlan_id = first_desc->vlan_TCI;
1942         memcpy(&src_addr, phdr->h_source, ETH_ALEN);
1943         hindex = QLCNIC_MAC_HASH(src_addr) & (QLCNIC_LB_MAX_FILTERS - 1);
1944         head = &(adapter->fhash.fhead[hindex]);
1945
1946         hlist_for_each_entry_safe(tmp_fil, tmp_hnode, n, head, fnode) {
1947                 if (!memcmp(tmp_fil->faddr, &src_addr, ETH_ALEN) &&
1948                             tmp_fil->vlan_id == vlan_id) {
1949
1950                         if (jiffies >
1951                             (QLCNIC_READD_AGE * HZ + tmp_fil->ftime))
1952                                 qlcnic_change_filter(adapter, src_addr, vlan_id,
1953                                                                 tx_ring);
1954                         tmp_fil->ftime = jiffies;
1955                         return;
1956                 }
1957         }
1958
1959         fil = kzalloc(sizeof(struct qlcnic_filter), GFP_ATOMIC);
1960         if (!fil)
1961                 return;
1962
1963         qlcnic_change_filter(adapter, src_addr, vlan_id, tx_ring);
1964
1965         fil->ftime = jiffies;
1966         fil->vlan_id = vlan_id;
1967         memcpy(fil->faddr, &src_addr, ETH_ALEN);
1968         spin_lock(&adapter->mac_learn_lock);
1969         hlist_add_head(&(fil->fnode), head);
1970         adapter->fhash.fnum++;
1971         spin_unlock(&adapter->mac_learn_lock);
1972 }
1973
1974 static int
1975 qlcnic_tx_pkt(struct qlcnic_adapter *adapter,
1976                 struct cmd_desc_type0 *first_desc,
1977                 struct sk_buff *skb)
1978 {
1979         u8 opcode = 0, hdr_len = 0;
1980         u16 flags = 0, vlan_tci = 0;
1981         int copied, offset, copy_len;
1982         struct cmd_desc_type0 *hwdesc;
1983         struct vlan_ethhdr *vh;
1984         struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
1985         u16 protocol = ntohs(skb->protocol);
1986         u32 producer = tx_ring->producer;
1987
1988         if (protocol == ETH_P_8021Q) {
1989                 vh = (struct vlan_ethhdr *)skb->data;
1990                 flags = FLAGS_VLAN_TAGGED;
1991                 vlan_tci = vh->h_vlan_TCI;
1992         } else if (vlan_tx_tag_present(skb)) {
1993                 flags = FLAGS_VLAN_OOB;
1994                 vlan_tci = vlan_tx_tag_get(skb);
1995         }
1996         if (unlikely(adapter->pvid)) {
1997                 if (vlan_tci && !(adapter->flags & QLCNIC_TAGGING_ENABLED))
1998                         return -EIO;
1999                 if (vlan_tci && (adapter->flags & QLCNIC_TAGGING_ENABLED))
2000                         goto set_flags;
2001
2002                 flags = FLAGS_VLAN_OOB;
2003                 vlan_tci = adapter->pvid;
2004         }
2005 set_flags:
2006         qlcnic_set_tx_vlan_tci(first_desc, vlan_tci);
2007         qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
2008
2009         if (*(skb->data) & BIT_0) {
2010                 flags |= BIT_0;
2011                 memcpy(&first_desc->eth_addr, skb->data, ETH_ALEN);
2012         }
2013         opcode = TX_ETHER_PKT;
2014         if ((adapter->netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
2015                         skb_shinfo(skb)->gso_size > 0) {
2016
2017                 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
2018
2019                 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
2020                 first_desc->total_hdr_length = hdr_len;
2021
2022                 opcode = (protocol == ETH_P_IPV6) ? TX_TCP_LSO6 : TX_TCP_LSO;
2023
2024                 /* For LSO, we need to copy the MAC/IP/TCP headers into
2025                 * the descriptor ring */
2026                 copied = 0;
2027                 offset = 2;
2028
2029                 if (flags & FLAGS_VLAN_OOB) {
2030                         first_desc->total_hdr_length += VLAN_HLEN;
2031                         first_desc->tcp_hdr_offset = VLAN_HLEN;
2032                         first_desc->ip_hdr_offset = VLAN_HLEN;
2033                         /* Only in case of TSO on vlan device */
2034                         flags |= FLAGS_VLAN_TAGGED;
2035
2036                         /* Create a TSO vlan header template for firmware */
2037
2038                         hwdesc = &tx_ring->desc_head[producer];
2039                         tx_ring->cmd_buf_arr[producer].skb = NULL;
2040
2041                         copy_len = min((int)sizeof(struct cmd_desc_type0) -
2042                                 offset, hdr_len + VLAN_HLEN);
2043
2044                         vh = (struct vlan_ethhdr *)((char *) hwdesc + 2);
2045                         skb_copy_from_linear_data(skb, vh, 12);
2046                         vh->h_vlan_proto = htons(ETH_P_8021Q);
2047                         vh->h_vlan_TCI = htons(vlan_tci);
2048
2049                         skb_copy_from_linear_data_offset(skb, 12,
2050                                 (char *)vh + 16, copy_len - 16);
2051
2052                         copied = copy_len - VLAN_HLEN;
2053                         offset = 0;
2054
2055                         producer = get_next_index(producer, tx_ring->num_desc);
2056                 }
2057
2058                 while (copied < hdr_len) {
2059
2060                         copy_len = min((int)sizeof(struct cmd_desc_type0) -
2061                                 offset, (hdr_len - copied));
2062
2063                         hwdesc = &tx_ring->desc_head[producer];
2064                         tx_ring->cmd_buf_arr[producer].skb = NULL;
2065
2066                         skb_copy_from_linear_data_offset(skb, copied,
2067                                  (char *) hwdesc + offset, copy_len);
2068
2069                         copied += copy_len;
2070                         offset = 0;
2071
2072                         producer = get_next_index(producer, tx_ring->num_desc);
2073                 }
2074
2075                 tx_ring->producer = producer;
2076                 smp_mb();
2077                 adapter->stats.lso_frames++;
2078
2079         } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
2080                 u8 l4proto;
2081
2082                 if (protocol == ETH_P_IP) {
2083                         l4proto = ip_hdr(skb)->protocol;
2084
2085                         if (l4proto == IPPROTO_TCP)
2086                                 opcode = TX_TCP_PKT;
2087                         else if (l4proto == IPPROTO_UDP)
2088                                 opcode = TX_UDP_PKT;
2089                 } else if (protocol == ETH_P_IPV6) {
2090                         l4proto = ipv6_hdr(skb)->nexthdr;
2091
2092                         if (l4proto == IPPROTO_TCP)
2093                                 opcode = TX_TCPV6_PKT;
2094                         else if (l4proto == IPPROTO_UDP)
2095                                 opcode = TX_UDPV6_PKT;
2096                 }
2097         }
2098         first_desc->tcp_hdr_offset += skb_transport_offset(skb);
2099         first_desc->ip_hdr_offset += skb_network_offset(skb);
2100         qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
2101
2102         return 0;
2103 }
2104
2105 static int
2106 qlcnic_map_tx_skb(struct pci_dev *pdev,
2107                 struct sk_buff *skb, struct qlcnic_cmd_buffer *pbuf)
2108 {
2109         struct qlcnic_skb_frag *nf;
2110         struct skb_frag_struct *frag;
2111         int i, nr_frags;
2112         dma_addr_t map;
2113
2114         nr_frags = skb_shinfo(skb)->nr_frags;
2115         nf = &pbuf->frag_array[0];
2116
2117         map = pci_map_single(pdev, skb->data,
2118                         skb_headlen(skb), PCI_DMA_TODEVICE);
2119         if (pci_dma_mapping_error(pdev, map))
2120                 goto out_err;
2121
2122         nf->dma = map;
2123         nf->length = skb_headlen(skb);
2124
2125         for (i = 0; i < nr_frags; i++) {
2126                 frag = &skb_shinfo(skb)->frags[i];
2127                 nf = &pbuf->frag_array[i+1];
2128
2129                 map = pci_map_page(pdev, frag->page, frag->page_offset,
2130                                 frag->size, PCI_DMA_TODEVICE);
2131                 if (pci_dma_mapping_error(pdev, map))
2132                         goto unwind;
2133
2134                 nf->dma = map;
2135                 nf->length = frag->size;
2136         }
2137
2138         return 0;
2139
2140 unwind:
2141         while (--i >= 0) {
2142                 nf = &pbuf->frag_array[i+1];
2143                 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
2144         }
2145
2146         nf = &pbuf->frag_array[0];
2147         pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
2148
2149 out_err:
2150         return -ENOMEM;
2151 }
2152
2153 static void
2154 qlcnic_unmap_buffers(struct pci_dev *pdev, struct sk_buff *skb,
2155                         struct qlcnic_cmd_buffer *pbuf)
2156 {
2157         struct qlcnic_skb_frag *nf = &pbuf->frag_array[0];
2158         int nr_frags = skb_shinfo(skb)->nr_frags;
2159         int i;
2160
2161         for (i = 0; i < nr_frags; i++) {
2162                 nf = &pbuf->frag_array[i+1];
2163                 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
2164         }
2165
2166         nf = &pbuf->frag_array[0];
2167         pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
2168         pbuf->skb = NULL;
2169 }
2170
2171 static inline void
2172 qlcnic_clear_cmddesc(u64 *desc)
2173 {
2174         desc[0] = 0ULL;
2175         desc[2] = 0ULL;
2176         desc[7] = 0ULL;
2177 }
2178
2179 netdev_tx_t
2180 qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
2181 {
2182         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2183         struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
2184         struct qlcnic_cmd_buffer *pbuf;
2185         struct qlcnic_skb_frag *buffrag;
2186         struct cmd_desc_type0 *hwdesc, *first_desc;
2187         struct pci_dev *pdev;
2188         struct ethhdr *phdr;
2189         int delta = 0;
2190         int i, k;
2191
2192         u32 producer;
2193         int frag_count;
2194         u32 num_txd = tx_ring->num_desc;
2195
2196         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
2197                 netif_stop_queue(netdev);
2198                 return NETDEV_TX_BUSY;
2199         }
2200
2201         if (adapter->flags & QLCNIC_MACSPOOF) {
2202                 phdr = (struct ethhdr *)skb->data;
2203                 if (compare_ether_addr(phdr->h_source,
2204                                         adapter->mac_addr))
2205                         goto drop_packet;
2206         }
2207
2208         frag_count = skb_shinfo(skb)->nr_frags + 1;
2209         /* 14 frags supported for normal packet and
2210          * 32 frags supported for TSO packet
2211          */
2212         if (!skb_is_gso(skb) && frag_count > QLCNIC_MAX_FRAGS_PER_TX) {
2213
2214                 for (i = 0; i < (frag_count - QLCNIC_MAX_FRAGS_PER_TX); i++)
2215                         delta += skb_shinfo(skb)->frags[i].size;
2216
2217                 if (!__pskb_pull_tail(skb, delta))
2218                         goto drop_packet;
2219
2220                 frag_count = 1 + skb_shinfo(skb)->nr_frags;
2221         }
2222
2223         if (unlikely(qlcnic_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
2224                 netif_stop_queue(netdev);
2225                 if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH)
2226                         netif_start_queue(netdev);
2227                 else {
2228                         adapter->stats.xmit_off++;
2229                         return NETDEV_TX_BUSY;
2230                 }
2231         }
2232
2233         producer = tx_ring->producer;
2234         pbuf = &tx_ring->cmd_buf_arr[producer];
2235
2236         pdev = adapter->pdev;
2237
2238         first_desc = hwdesc = &tx_ring->desc_head[producer];
2239         qlcnic_clear_cmddesc((u64 *)hwdesc);
2240
2241         if (qlcnic_map_tx_skb(pdev, skb, pbuf)) {
2242                 adapter->stats.tx_dma_map_error++;
2243                 goto drop_packet;
2244         }
2245
2246         pbuf->skb = skb;
2247         pbuf->frag_count = frag_count;
2248
2249         qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len);
2250         qlcnic_set_tx_port(first_desc, adapter->portnum);
2251
2252         for (i = 0; i < frag_count; i++) {
2253
2254                 k = i % 4;
2255
2256                 if ((k == 0) && (i > 0)) {
2257                         /* move to next desc.*/
2258                         producer = get_next_index(producer, num_txd);
2259                         hwdesc = &tx_ring->desc_head[producer];
2260                         qlcnic_clear_cmddesc((u64 *)hwdesc);
2261                         tx_ring->cmd_buf_arr[producer].skb = NULL;
2262                 }
2263
2264                 buffrag = &pbuf->frag_array[i];
2265
2266                 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
2267                 switch (k) {
2268                 case 0:
2269                         hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
2270                         break;
2271                 case 1:
2272                         hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
2273                         break;
2274                 case 2:
2275                         hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
2276                         break;
2277                 case 3:
2278                         hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
2279                         break;
2280                 }
2281         }
2282
2283         tx_ring->producer = get_next_index(producer, num_txd);
2284         smp_mb();
2285
2286         if (unlikely(qlcnic_tx_pkt(adapter, first_desc, skb)))
2287                 goto unwind_buff;
2288
2289         if (qlcnic_mac_learn)
2290                 qlcnic_send_filter(adapter, tx_ring, first_desc, skb);
2291
2292         qlcnic_update_cmd_producer(adapter, tx_ring);
2293
2294         adapter->stats.txbytes += skb->len;
2295         adapter->stats.xmitcalled++;
2296
2297         return NETDEV_TX_OK;
2298
2299 unwind_buff:
2300         qlcnic_unmap_buffers(pdev, skb, pbuf);
2301 drop_packet:
2302         adapter->stats.txdropped++;
2303         dev_kfree_skb_any(skb);
2304         return NETDEV_TX_OK;
2305 }
2306
2307 static int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2308 {
2309         struct net_device *netdev = adapter->netdev;
2310         u32 temp, temp_state, temp_val;
2311         int rv = 0;
2312
2313         temp = QLCRD32(adapter, CRB_TEMP_STATE);
2314
2315         temp_state = qlcnic_get_temp_state(temp);
2316         temp_val = qlcnic_get_temp_val(temp);
2317
2318         if (temp_state == QLCNIC_TEMP_PANIC) {
2319                 dev_err(&netdev->dev,
2320                        "Device temperature %d degrees C exceeds"
2321                        " maximum allowed. Hardware has been shut down.\n",
2322                        temp_val);
2323                 rv = 1;
2324         } else if (temp_state == QLCNIC_TEMP_WARN) {
2325                 if (adapter->temp == QLCNIC_TEMP_NORMAL) {
2326                         dev_err(&netdev->dev,
2327                                "Device temperature %d degrees C "
2328                                "exceeds operating range."
2329                                " Immediate action needed.\n",
2330                                temp_val);
2331                 }
2332         } else {
2333                 if (adapter->temp == QLCNIC_TEMP_WARN) {
2334                         dev_info(&netdev->dev,
2335                                "Device temperature is now %d degrees C"
2336                                " in normal range.\n", temp_val);
2337                 }
2338         }
2339         adapter->temp = temp_state;
2340         return rv;
2341 }
2342
2343 void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup)
2344 {
2345         struct net_device *netdev = adapter->netdev;
2346
2347         if (adapter->ahw->linkup && !linkup) {
2348                 netdev_info(netdev, "NIC Link is down\n");
2349                 adapter->ahw->linkup = 0;
2350                 if (netif_running(netdev)) {
2351                         netif_carrier_off(netdev);
2352                         netif_stop_queue(netdev);
2353                 }
2354         } else if (!adapter->ahw->linkup && linkup) {
2355                 netdev_info(netdev, "NIC Link is up\n");
2356                 adapter->ahw->linkup = 1;
2357                 if (netif_running(netdev)) {
2358                         netif_carrier_on(netdev);
2359                         netif_wake_queue(netdev);
2360                 }
2361         }
2362 }
2363
2364 static void qlcnic_tx_timeout(struct net_device *netdev)
2365 {
2366         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2367
2368         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2369                 return;
2370
2371         dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2372
2373         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
2374                 adapter->need_fw_reset = 1;
2375         else
2376                 adapter->reset_context = 1;
2377 }
2378
2379 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2380 {
2381         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2382         struct net_device_stats *stats = &netdev->stats;
2383
2384         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2385         stats->tx_packets = adapter->stats.xmitfinished;
2386         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2387         stats->tx_bytes = adapter->stats.txbytes;
2388         stats->rx_dropped = adapter->stats.rxdropped;
2389         stats->tx_dropped = adapter->stats.txdropped;
2390
2391         return stats;
2392 }
2393
2394 static irqreturn_t qlcnic_clear_legacy_intr(struct qlcnic_adapter *adapter)
2395 {
2396         u32 status;
2397
2398         status = readl(adapter->isr_int_vec);
2399
2400         if (!(status & adapter->int_vec_bit))
2401                 return IRQ_NONE;
2402
2403         /* check interrupt state machine, to be sure */
2404         status = readl(adapter->crb_int_state_reg);
2405         if (!ISR_LEGACY_INT_TRIGGERED(status))
2406                 return IRQ_NONE;
2407
2408         writel(0xffffffff, adapter->tgt_status_reg);
2409         /* read twice to ensure write is flushed */
2410         readl(adapter->isr_int_vec);
2411         readl(adapter->isr_int_vec);
2412
2413         return IRQ_HANDLED;
2414 }
2415
2416 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2417 {
2418         struct qlcnic_host_sds_ring *sds_ring = data;
2419         struct qlcnic_adapter *adapter = sds_ring->adapter;
2420
2421         if (adapter->flags & QLCNIC_MSIX_ENABLED)
2422                 goto done;
2423         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2424                 writel(0xffffffff, adapter->tgt_status_reg);
2425                 goto done;
2426         }
2427
2428         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2429                 return IRQ_NONE;
2430
2431 done:
2432         adapter->diag_cnt++;
2433         qlcnic_enable_int(sds_ring);
2434         return IRQ_HANDLED;
2435 }
2436
2437 static irqreturn_t qlcnic_intr(int irq, void *data)
2438 {
2439         struct qlcnic_host_sds_ring *sds_ring = data;
2440         struct qlcnic_adapter *adapter = sds_ring->adapter;
2441
2442         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2443                 return IRQ_NONE;
2444
2445         napi_schedule(&sds_ring->napi);
2446
2447         return IRQ_HANDLED;
2448 }
2449
2450 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2451 {
2452         struct qlcnic_host_sds_ring *sds_ring = data;
2453         struct qlcnic_adapter *adapter = sds_ring->adapter;
2454
2455         /* clear interrupt */
2456         writel(0xffffffff, adapter->tgt_status_reg);
2457
2458         napi_schedule(&sds_ring->napi);
2459         return IRQ_HANDLED;
2460 }
2461
2462 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2463 {
2464         struct qlcnic_host_sds_ring *sds_ring = data;
2465
2466         napi_schedule(&sds_ring->napi);
2467         return IRQ_HANDLED;
2468 }
2469
2470 static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter)
2471 {
2472         u32 sw_consumer, hw_consumer;
2473         int count = 0, i;
2474         struct qlcnic_cmd_buffer *buffer;
2475         struct pci_dev *pdev = adapter->pdev;
2476         struct net_device *netdev = adapter->netdev;
2477         struct qlcnic_skb_frag *frag;
2478         int done;
2479         struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
2480
2481         if (!spin_trylock(&adapter->tx_clean_lock))
2482                 return 1;
2483
2484         sw_consumer = tx_ring->sw_consumer;
2485         hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
2486
2487         while (sw_consumer != hw_consumer) {
2488                 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
2489                 if (buffer->skb) {
2490                         frag = &buffer->frag_array[0];
2491                         pci_unmap_single(pdev, frag->dma, frag->length,
2492                                          PCI_DMA_TODEVICE);
2493                         frag->dma = 0ULL;
2494                         for (i = 1; i < buffer->frag_count; i++) {
2495                                 frag++;
2496                                 pci_unmap_page(pdev, frag->dma, frag->length,
2497                                                PCI_DMA_TODEVICE);
2498                                 frag->dma = 0ULL;
2499                         }
2500
2501                         adapter->stats.xmitfinished++;
2502                         dev_kfree_skb_any(buffer->skb);
2503                         buffer->skb = NULL;
2504                 }
2505
2506                 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
2507                 if (++count >= MAX_STATUS_HANDLE)
2508                         break;
2509         }
2510
2511         if (count && netif_running(netdev)) {
2512                 tx_ring->sw_consumer = sw_consumer;
2513
2514                 smp_mb();
2515
2516                 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
2517                         if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) {
2518                                 netif_wake_queue(netdev);
2519                                 adapter->stats.xmit_on++;
2520                         }
2521                 }
2522                 adapter->tx_timeo_cnt = 0;
2523         }
2524         /*
2525          * If everything is freed up to consumer then check if the ring is full
2526          * If the ring is full then check if more needs to be freed and
2527          * schedule the call back again.
2528          *
2529          * This happens when there are 2 CPUs. One could be freeing and the
2530          * other filling it. If the ring is full when we get out of here and
2531          * the card has already interrupted the host then the host can miss the
2532          * interrupt.
2533          *
2534          * There is still a possible race condition and the host could miss an
2535          * interrupt. The card has to take care of this.
2536          */
2537         hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
2538         done = (sw_consumer == hw_consumer);
2539         spin_unlock(&adapter->tx_clean_lock);
2540
2541         return done;
2542 }
2543
2544 static int qlcnic_poll(struct napi_struct *napi, int budget)
2545 {
2546         struct qlcnic_host_sds_ring *sds_ring =
2547                 container_of(napi, struct qlcnic_host_sds_ring, napi);
2548
2549         struct qlcnic_adapter *adapter = sds_ring->adapter;
2550
2551         int tx_complete;
2552         int work_done;
2553
2554         tx_complete = qlcnic_process_cmd_ring(adapter);
2555
2556         work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2557
2558         if ((work_done < budget) && tx_complete) {
2559                 napi_complete(&sds_ring->napi);
2560                 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2561                         qlcnic_enable_int(sds_ring);
2562         }
2563
2564         return work_done;
2565 }
2566
2567 static int qlcnic_rx_poll(struct napi_struct *napi, int budget)
2568 {
2569         struct qlcnic_host_sds_ring *sds_ring =
2570                 container_of(napi, struct qlcnic_host_sds_ring, napi);
2571
2572         struct qlcnic_adapter *adapter = sds_ring->adapter;
2573         int work_done;
2574
2575         work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2576
2577         if (work_done < budget) {
2578                 napi_complete(&sds_ring->napi);
2579                 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2580                         qlcnic_enable_int(sds_ring);
2581         }
2582
2583         return work_done;
2584 }
2585
2586 #ifdef CONFIG_NET_POLL_CONTROLLER
2587 static void qlcnic_poll_controller(struct net_device *netdev)
2588 {
2589         int ring;
2590         struct qlcnic_host_sds_ring *sds_ring;
2591         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2592         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2593
2594         disable_irq(adapter->irq);
2595         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2596                 sds_ring = &recv_ctx->sds_rings[ring];
2597                 qlcnic_intr(adapter->irq, sds_ring);
2598         }
2599         enable_irq(adapter->irq);
2600 }
2601 #endif
2602
2603 static void
2604 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2605 {
2606         u32 val;
2607
2608         val = adapter->portnum & 0xf;
2609         val |= encoding << 7;
2610         val |= (jiffies - adapter->dev_rst_time) << 8;
2611
2612         QLCWR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2613         adapter->dev_rst_time = jiffies;
2614 }
2615
2616 static int
2617 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2618 {
2619         u32  val;
2620
2621         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2622                         state != QLCNIC_DEV_NEED_QUISCENT);
2623
2624         if (qlcnic_api_lock(adapter))
2625                 return -EIO;
2626
2627         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2628
2629         if (state == QLCNIC_DEV_NEED_RESET)
2630                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2631         else if (state == QLCNIC_DEV_NEED_QUISCENT)
2632                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2633
2634         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2635
2636         qlcnic_api_unlock(adapter);
2637
2638         return 0;
2639 }
2640
2641 static int
2642 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2643 {
2644         u32  val;
2645
2646         if (qlcnic_api_lock(adapter))
2647                 return -EBUSY;
2648
2649         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2650         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2651         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2652
2653         qlcnic_api_unlock(adapter);
2654
2655         return 0;
2656 }
2657
2658 static void
2659 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2660 {
2661         u32  val;
2662
2663         if (qlcnic_api_lock(adapter))
2664                 goto err;
2665
2666         val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2667         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2668         QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2669
2670         if (failed) {
2671                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
2672                 dev_info(&adapter->pdev->dev,
2673                                 "Device state set to Failed. Please Reboot\n");
2674         } else if (!(val & 0x11111111))
2675                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_COLD);
2676
2677         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2678         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2679         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2680
2681         qlcnic_api_unlock(adapter);
2682 err:
2683         adapter->fw_fail_cnt = 0;
2684         clear_bit(__QLCNIC_START_FW, &adapter->state);
2685         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2686 }
2687
2688 /* Grab api lock, before checking state */
2689 static int
2690 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2691 {
2692         int act, state, active_mask;
2693
2694         state = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2695         act = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2696
2697         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
2698                 active_mask = (~(1 << (adapter->ahw->pci_func * 4)));
2699                 act = act & active_mask;
2700         }
2701
2702         if (((state & 0x11111111) == (act & 0x11111111)) ||
2703                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2704                 return 0;
2705         else
2706                 return 1;
2707 }
2708
2709 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2710 {
2711         u32 val = QLCRD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2712
2713         if (val != QLCNIC_DRV_IDC_VER) {
2714                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2715                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2716         }
2717
2718         return 0;
2719 }
2720
2721 static int
2722 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2723 {
2724         u32 val, prev_state;
2725         u8 dev_init_timeo = adapter->dev_init_timeo;
2726         u8 portnum = adapter->portnum;
2727         u8 ret;
2728
2729         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2730                 return 1;
2731
2732         if (qlcnic_api_lock(adapter))
2733                 return -1;
2734
2735         val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2736         if (!(val & (1 << (portnum * 4)))) {
2737                 QLC_DEV_SET_REF_CNT(val, portnum);
2738                 QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2739         }
2740
2741         prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2742         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2743
2744         switch (prev_state) {
2745         case QLCNIC_DEV_COLD:
2746                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
2747                 QLCWR32(adapter, QLCNIC_CRB_DRV_IDC_VER, QLCNIC_DRV_IDC_VER);
2748                 qlcnic_idc_debug_info(adapter, 0);
2749                 qlcnic_api_unlock(adapter);
2750                 return 1;
2751
2752         case QLCNIC_DEV_READY:
2753                 ret = qlcnic_check_idc_ver(adapter);
2754                 qlcnic_api_unlock(adapter);
2755                 return ret;
2756
2757         case QLCNIC_DEV_NEED_RESET:
2758                 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2759                 QLC_DEV_SET_RST_RDY(val, portnum);
2760                 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2761                 break;
2762
2763         case QLCNIC_DEV_NEED_QUISCENT:
2764                 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2765                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
2766                 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2767                 break;
2768
2769         case QLCNIC_DEV_FAILED:
2770                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
2771                 qlcnic_api_unlock(adapter);
2772                 return -1;
2773
2774         case QLCNIC_DEV_INITIALIZING:
2775         case QLCNIC_DEV_QUISCENT:
2776                 break;
2777         }
2778
2779         qlcnic_api_unlock(adapter);
2780
2781         do {
2782                 msleep(1000);
2783                 prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2784
2785                 if (prev_state == QLCNIC_DEV_QUISCENT)
2786                         continue;
2787         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
2788
2789         if (!dev_init_timeo) {
2790                 dev_err(&adapter->pdev->dev,
2791                         "Waiting for device to initialize timeout\n");
2792                 return -1;
2793         }
2794
2795         if (qlcnic_api_lock(adapter))
2796                 return -1;
2797
2798         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2799         QLC_DEV_CLR_RST_QSCNT(val, portnum);
2800         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2801
2802         ret = qlcnic_check_idc_ver(adapter);
2803         qlcnic_api_unlock(adapter);
2804
2805         return ret;
2806 }
2807
2808 static void
2809 qlcnic_fwinit_work(struct work_struct *work)
2810 {
2811         struct qlcnic_adapter *adapter = container_of(work,
2812                         struct qlcnic_adapter, fw_work.work);
2813         u32 dev_state = 0xf;
2814
2815         if (qlcnic_api_lock(adapter))
2816                 goto err_ret;
2817
2818         dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2819         if (dev_state == QLCNIC_DEV_QUISCENT ||
2820             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2821                 qlcnic_api_unlock(adapter);
2822                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2823                                                 FW_POLL_DELAY * 2);
2824                 return;
2825         }
2826
2827         if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC) {
2828                 qlcnic_api_unlock(adapter);
2829                 goto wait_npar;
2830         }
2831
2832         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2833                 dev_err(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2834                                         adapter->reset_ack_timeo);
2835                 goto skip_ack_check;
2836         }
2837
2838         if (!qlcnic_check_drv_state(adapter)) {
2839 skip_ack_check:
2840                 if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2841                         qlcnic_api_unlock(adapter);
2842                         goto wait_npar;
2843                 }
2844
2845                 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2846
2847                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2848                         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE,
2849                                                 QLCNIC_DEV_INITIALIZING);
2850                         set_bit(__QLCNIC_START_FW, &adapter->state);
2851                         QLCDB(adapter, DRV, "Restarting fw\n");
2852                         qlcnic_idc_debug_info(adapter, 0);
2853                 }
2854
2855                 qlcnic_api_unlock(adapter);
2856
2857                 rtnl_lock();
2858                 if (adapter->ahw->fw_dump.enable) {
2859                         QLCDB(adapter, DRV, "Take FW dump\n");
2860                         qlcnic_dump_fw(adapter);
2861                         adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
2862                 }
2863                 rtnl_unlock();
2864                 if (!adapter->nic_ops->start_firmware(adapter)) {
2865                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2866                         adapter->fw_wait_cnt = 0;
2867                         return;
2868                 }
2869                 goto err_ret;
2870         }
2871
2872         qlcnic_api_unlock(adapter);
2873
2874 wait_npar:
2875         dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2876         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
2877
2878         switch (dev_state) {
2879         case QLCNIC_DEV_READY:
2880                 if (!adapter->nic_ops->start_firmware(adapter)) {
2881                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2882                         adapter->fw_wait_cnt = 0;
2883                         return;
2884                 }
2885         case QLCNIC_DEV_FAILED:
2886                 break;
2887         default:
2888                 qlcnic_schedule_work(adapter,
2889                         qlcnic_fwinit_work, FW_POLL_DELAY);
2890                 return;
2891         }
2892
2893 err_ret:
2894         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2895                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
2896         netif_device_attach(adapter->netdev);
2897         qlcnic_clr_all_drv_state(adapter, 0);
2898 }
2899
2900 static void
2901 qlcnic_detach_work(struct work_struct *work)
2902 {
2903         struct qlcnic_adapter *adapter = container_of(work,
2904                         struct qlcnic_adapter, fw_work.work);
2905         struct net_device *netdev = adapter->netdev;
2906         u32 status;
2907
2908         netif_device_detach(netdev);
2909
2910         /* Dont grab rtnl lock during Quiscent mode */
2911         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2912                 if (netif_running(netdev))
2913                         __qlcnic_down(adapter, netdev);
2914         } else
2915                 qlcnic_down(adapter, netdev);
2916
2917         status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2918
2919         if (status & QLCNIC_RCODE_FATAL_ERROR)
2920                 goto err_ret;
2921
2922         if (adapter->temp == QLCNIC_TEMP_PANIC)
2923                 goto err_ret;
2924         /* Dont ack if this instance is the reset owner */
2925         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2926                 if (qlcnic_set_drv_state(adapter, adapter->dev_state))
2927                         goto err_ret;
2928         }
2929
2930         adapter->fw_wait_cnt = 0;
2931
2932         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2933
2934         return;
2935
2936 err_ret:
2937         dev_err(&adapter->pdev->dev, "detach failed; status=%d temp=%d\n",
2938                         status, adapter->temp);
2939         netif_device_attach(netdev);
2940         qlcnic_clr_all_drv_state(adapter, 1);
2941 }
2942
2943 /*Transit NPAR state to NON Operational */
2944 static void
2945 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
2946 {
2947         u32 state;
2948
2949         state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2950         if (state == QLCNIC_DEV_NPAR_NON_OPER)
2951                 return;
2952
2953         if (qlcnic_api_lock(adapter))
2954                 return;
2955         QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
2956         qlcnic_api_unlock(adapter);
2957 }
2958
2959 /*Transit to RESET state from READY state only */
2960 void
2961 qlcnic_dev_request_reset(struct qlcnic_adapter *adapter)
2962 {
2963         u32 state;
2964
2965         adapter->need_fw_reset = 1;
2966         if (qlcnic_api_lock(adapter))
2967                 return;
2968
2969         state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2970
2971         if (state == QLCNIC_DEV_READY) {
2972                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_RESET);
2973                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
2974                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
2975                 qlcnic_idc_debug_info(adapter, 0);
2976         }
2977
2978         QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
2979         qlcnic_api_unlock(adapter);
2980 }
2981
2982 /* Transit to NPAR READY state from NPAR NOT READY state */
2983 static void
2984 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
2985 {
2986         if (qlcnic_api_lock(adapter))
2987                 return;
2988
2989         QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_OPER);
2990         QLCDB(adapter, DRV, "NPAR operational state set\n");
2991
2992         qlcnic_api_unlock(adapter);
2993 }
2994
2995 static void
2996 qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2997                 work_func_t func, int delay)
2998 {
2999         if (test_bit(__QLCNIC_AER, &adapter->state))
3000                 return;
3001
3002         INIT_DELAYED_WORK(&adapter->fw_work, func);
3003         queue_delayed_work(qlcnic_wq, &adapter->fw_work,
3004                                         round_jiffies_relative(delay));
3005 }
3006
3007 static void
3008 qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter)
3009 {
3010         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
3011                 msleep(10);
3012
3013         cancel_delayed_work_sync(&adapter->fw_work);
3014 }
3015
3016 static void
3017 qlcnic_attach_work(struct work_struct *work)
3018 {
3019         struct qlcnic_adapter *adapter = container_of(work,
3020                                 struct qlcnic_adapter, fw_work.work);
3021         struct net_device *netdev = adapter->netdev;
3022         u32 npar_state;
3023
3024         if (adapter->op_mode != QLCNIC_MGMT_FUNC) {
3025                 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3026                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3027                         qlcnic_clr_all_drv_state(adapter, 0);
3028                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3029                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
3030                                                         FW_POLL_DELAY);
3031                 else
3032                         goto attach;
3033                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3034                 return;
3035         }
3036 attach:
3037         if (netif_running(netdev)) {
3038                 if (qlcnic_up(adapter, netdev))
3039                         goto done;
3040
3041                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3042         }
3043
3044 done:
3045         netif_device_attach(netdev);
3046         adapter->fw_fail_cnt = 0;
3047         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3048
3049         if (!qlcnic_clr_drv_state(adapter))
3050                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3051                                                         FW_POLL_DELAY);
3052 }
3053
3054 static int
3055 qlcnic_check_health(struct qlcnic_adapter *adapter)
3056 {
3057         u32 state = 0, heartbeat;
3058         struct net_device *netdev = adapter->netdev;
3059
3060         if (qlcnic_check_temp(adapter))
3061                 goto detach;
3062
3063         if (adapter->need_fw_reset)
3064                 qlcnic_dev_request_reset(adapter);
3065
3066         state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
3067         if (state == QLCNIC_DEV_NEED_RESET) {
3068                 qlcnic_set_npar_non_operational(adapter);
3069                 adapter->need_fw_reset = 1;
3070         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3071                 goto detach;
3072
3073         heartbeat = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3074         if (heartbeat != adapter->heartbeat) {
3075                 adapter->heartbeat = heartbeat;
3076                 adapter->fw_fail_cnt = 0;
3077                 if (adapter->need_fw_reset)
3078                         goto detach;
3079
3080                 if (adapter->reset_context && auto_fw_reset) {
3081                         qlcnic_reset_hw_context(adapter);
3082                         adapter->netdev->trans_start = jiffies;
3083                 }
3084
3085                 return 0;
3086         }
3087
3088         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3089                 return 0;
3090
3091         qlcnic_dev_request_reset(adapter);
3092
3093         if (auto_fw_reset)
3094                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3095
3096         dev_info(&netdev->dev, "firmware hang detected\n");
3097
3098 detach:
3099         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3100                 QLCNIC_DEV_NEED_RESET;
3101
3102         if (auto_fw_reset &&
3103                 !test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) {
3104
3105                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3106                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3107         }
3108
3109         return 1;
3110 }
3111
3112 static void
3113 qlcnic_fw_poll_work(struct work_struct *work)
3114 {
3115         struct qlcnic_adapter *adapter = container_of(work,
3116                                 struct qlcnic_adapter, fw_work.work);
3117
3118         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3119                 goto reschedule;
3120
3121
3122         if (qlcnic_check_health(adapter))
3123                 return;
3124
3125         if (adapter->fhash.fnum)
3126                 qlcnic_prune_lb_filters(adapter);
3127
3128 reschedule:
3129         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3130 }
3131
3132 static int qlcnic_is_first_func(struct pci_dev *pdev)
3133 {
3134         struct pci_dev *oth_pdev;
3135         int val = pdev->devfn;
3136
3137         while (val-- > 0) {
3138                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3139                         (pdev->bus), pdev->bus->number,
3140                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3141                 if (!oth_pdev)
3142                         continue;
3143
3144                 if (oth_pdev->current_state != PCI_D3cold) {
3145                         pci_dev_put(oth_pdev);
3146                         return 0;
3147                 }
3148                 pci_dev_put(oth_pdev);
3149         }
3150         return 1;
3151 }
3152
3153 static int qlcnic_attach_func(struct pci_dev *pdev)
3154 {
3155         int err, first_func;
3156         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3157         struct net_device *netdev = adapter->netdev;
3158
3159         pdev->error_state = pci_channel_io_normal;
3160
3161         err = pci_enable_device(pdev);
3162         if (err)
3163                 return err;
3164
3165         pci_set_power_state(pdev, PCI_D0);
3166         pci_set_master(pdev);
3167         pci_restore_state(pdev);
3168
3169         first_func = qlcnic_is_first_func(pdev);
3170
3171         if (qlcnic_api_lock(adapter))
3172                 return -EINVAL;
3173
3174         if (adapter->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3175                 adapter->need_fw_reset = 1;
3176                 set_bit(__QLCNIC_START_FW, &adapter->state);
3177                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
3178                 QLCDB(adapter, DRV, "Restarting fw\n");
3179         }
3180         qlcnic_api_unlock(adapter);
3181
3182         err = adapter->nic_ops->start_firmware(adapter);
3183         if (err)
3184                 return err;
3185
3186         qlcnic_clr_drv_state(adapter);
3187         qlcnic_setup_intr(adapter);
3188
3189         if (netif_running(netdev)) {
3190                 err = qlcnic_attach(adapter);
3191                 if (err) {
3192                         qlcnic_clr_all_drv_state(adapter, 1);
3193                         clear_bit(__QLCNIC_AER, &adapter->state);
3194                         netif_device_attach(netdev);
3195                         return err;
3196                 }
3197
3198                 err = qlcnic_up(adapter, netdev);
3199                 if (err)
3200                         goto done;
3201
3202                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3203         }
3204  done:
3205         netif_device_attach(netdev);
3206         return err;
3207 }
3208
3209 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3210                                                 pci_channel_state_t state)
3211 {
3212         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3213         struct net_device *netdev = adapter->netdev;
3214
3215         if (state == pci_channel_io_perm_failure)
3216                 return PCI_ERS_RESULT_DISCONNECT;
3217
3218         if (state == pci_channel_io_normal)
3219                 return PCI_ERS_RESULT_RECOVERED;
3220
3221         set_bit(__QLCNIC_AER, &adapter->state);
3222         netif_device_detach(netdev);
3223
3224         cancel_delayed_work_sync(&adapter->fw_work);
3225
3226         if (netif_running(netdev))
3227                 qlcnic_down(adapter, netdev);
3228
3229         qlcnic_detach(adapter);
3230         qlcnic_teardown_intr(adapter);
3231
3232         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3233
3234         pci_save_state(pdev);
3235         pci_disable_device(pdev);
3236
3237         return PCI_ERS_RESULT_NEED_RESET;
3238 }
3239
3240 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3241 {
3242         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3243                                 PCI_ERS_RESULT_RECOVERED;
3244 }
3245
3246 static void qlcnic_io_resume(struct pci_dev *pdev)
3247 {
3248         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3249
3250         pci_cleanup_aer_uncorrect_error_status(pdev);
3251
3252         if (QLCRD32(adapter, QLCNIC_CRB_DEV_STATE) == QLCNIC_DEV_READY &&
3253             test_and_clear_bit(__QLCNIC_AER, &adapter->state))
3254                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3255                                                 FW_POLL_DELAY);
3256 }
3257
3258 static int
3259 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3260 {
3261         int err;
3262
3263         err = qlcnic_can_start_firmware(adapter);
3264         if (err)
3265                 return err;
3266
3267         err = qlcnic_check_npar_opertional(adapter);
3268         if (err)
3269                 return err;
3270
3271         err = qlcnic_initialize_nic(adapter);
3272         if (err)
3273                 return err;
3274
3275         qlcnic_check_options(adapter);
3276
3277         err = qlcnic_set_eswitch_port_config(adapter);
3278         if (err)
3279                 return err;
3280
3281         adapter->need_fw_reset = 0;
3282
3283         return err;
3284 }
3285
3286 static int
3287 qlcnicvf_config_bridged_mode(struct qlcnic_adapter *adapter, u32 enable)
3288 {
3289         return -EOPNOTSUPP;
3290 }
3291
3292 static int
3293 qlcnicvf_config_led(struct qlcnic_adapter *adapter, u32 state, u32 rate)
3294 {
3295         return -EOPNOTSUPP;
3296 }
3297
3298 static ssize_t
3299 qlcnic_store_bridged_mode(struct device *dev,
3300                 struct device_attribute *attr, const char *buf, size_t len)
3301 {
3302         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3303         unsigned long new;
3304         int ret = -EINVAL;
3305
3306         if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG))
3307                 goto err_out;
3308
3309         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3310                 goto err_out;
3311
3312         if (strict_strtoul(buf, 2, &new))
3313                 goto err_out;
3314
3315         if (!adapter->nic_ops->config_bridged_mode(adapter, !!new))
3316                 ret = len;
3317
3318 err_out:
3319         return ret;
3320 }
3321
3322 static ssize_t
3323 qlcnic_show_bridged_mode(struct device *dev,
3324                 struct device_attribute *attr, char *buf)
3325 {
3326         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3327         int bridged_mode = 0;
3328
3329         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
3330                 bridged_mode = !!(adapter->flags & QLCNIC_BRIDGE_ENABLED);
3331
3332         return sprintf(buf, "%d\n", bridged_mode);
3333 }
3334
3335 static struct device_attribute dev_attr_bridged_mode = {
3336        .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
3337        .show = qlcnic_show_bridged_mode,
3338        .store = qlcnic_store_bridged_mode,
3339 };
3340
3341 static ssize_t
3342 qlcnic_store_diag_mode(struct device *dev,
3343                 struct device_attribute *attr, const char *buf, size_t len)
3344 {
3345         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3346         unsigned long new;
3347
3348         if (strict_strtoul(buf, 2, &new))
3349                 return -EINVAL;
3350
3351         if (!!new != !!(adapter->flags & QLCNIC_DIAG_ENABLED))
3352                 adapter->flags ^= QLCNIC_DIAG_ENABLED;
3353
3354         return len;
3355 }
3356
3357 static ssize_t
3358 qlcnic_show_diag_mode(struct device *dev,
3359                 struct device_attribute *attr, char *buf)
3360 {
3361         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3362
3363         return sprintf(buf, "%d\n",
3364                         !!(adapter->flags & QLCNIC_DIAG_ENABLED));
3365 }
3366
3367 static struct device_attribute dev_attr_diag_mode = {
3368         .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
3369         .show = qlcnic_show_diag_mode,
3370         .store = qlcnic_store_diag_mode,
3371 };
3372
3373 int qlcnic_validate_max_rss(struct net_device *netdev, u8 max_hw, u8 val)
3374 {
3375         if (!use_msi_x && !use_msi) {
3376                 netdev_info(netdev, "no msix or msi support, hence no rss\n");
3377                 return -EINVAL;
3378         }
3379
3380         if ((val > max_hw) || (val <  2) || !is_power_of_2(val)) {
3381                 netdev_info(netdev, "rss_ring valid range [2 - %x] in "
3382                         " powers of 2\n", max_hw);
3383                 return -EINVAL;
3384         }
3385         return 0;
3386
3387 }
3388
3389 int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data)
3390 {
3391         struct net_device *netdev = adapter->netdev;
3392         int err = 0;
3393
3394         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
3395                 return -EBUSY;
3396
3397         netif_device_detach(netdev);
3398         if (netif_running(netdev))
3399                 __qlcnic_down(adapter, netdev);
3400         qlcnic_detach(adapter);
3401         qlcnic_teardown_intr(adapter);
3402
3403         if (qlcnic_enable_msix(adapter, data)) {
3404                 netdev_info(netdev, "failed setting max_rss; rss disabled\n");
3405                 qlcnic_enable_msi_legacy(adapter);
3406         }
3407
3408         if (netif_running(netdev)) {
3409                 err = qlcnic_attach(adapter);
3410                 if (err)
3411                         goto done;
3412                 err = __qlcnic_up(adapter, netdev);
3413                 if (err)
3414                         goto done;
3415                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3416         }
3417  done:
3418         netif_device_attach(netdev);
3419         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3420         return err;
3421 }
3422
3423 static int
3424 qlcnic_sysfs_validate_crb(struct qlcnic_adapter *adapter,
3425                 loff_t offset, size_t size)
3426 {
3427         size_t crb_size = 4;
3428
3429         if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
3430                 return -EIO;
3431
3432         if (offset < QLCNIC_PCI_CRBSPACE) {
3433                 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM,
3434                                         QLCNIC_PCI_CAMQM_END))
3435                         crb_size = 8;
3436                 else
3437                         return -EINVAL;
3438         }
3439
3440         if ((size != crb_size) || (offset & (crb_size-1)))
3441                 return  -EINVAL;
3442
3443         return 0;
3444 }
3445
3446 static ssize_t
3447 qlcnic_sysfs_read_crb(struct file *filp, struct kobject *kobj,
3448                 struct bin_attribute *attr,
3449                 char *buf, loff_t offset, size_t size)
3450 {
3451         struct device *dev = container_of(kobj, struct device, kobj);
3452         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3453         u32 data;
3454         u64 qmdata;
3455         int ret;
3456
3457         ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
3458         if (ret != 0)
3459                 return ret;
3460
3461         if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
3462                 qlcnic_pci_camqm_read_2M(adapter, offset, &qmdata);
3463                 memcpy(buf, &qmdata, size);
3464         } else {
3465                 data = QLCRD32(adapter, offset);
3466                 memcpy(buf, &data, size);
3467         }
3468         return size;
3469 }
3470
3471 static ssize_t
3472 qlcnic_sysfs_write_crb(struct file *filp, struct kobject *kobj,
3473                 struct bin_attribute *attr,
3474                 char *buf, loff_t offset, size_t size)
3475 {
3476         struct device *dev = container_of(kobj, struct device, kobj);
3477         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3478         u32 data;
3479         u64 qmdata;
3480         int ret;
3481
3482         ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
3483         if (ret != 0)
3484                 return ret;
3485
3486         if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
3487                 memcpy(&qmdata, buf, size);
3488                 qlcnic_pci_camqm_write_2M(adapter, offset, qmdata);
3489         } else {
3490                 memcpy(&data, buf, size);
3491                 QLCWR32(adapter, offset, data);
3492         }
3493         return size;
3494 }
3495
3496 static int
3497 qlcnic_sysfs_validate_mem(struct qlcnic_adapter *adapter,
3498                 loff_t offset, size_t size)
3499 {
3500         if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
3501                 return -EIO;
3502
3503         if ((size != 8) || (offset & 0x7))
3504                 return  -EIO;
3505
3506         return 0;
3507 }
3508
3509 static ssize_t
3510 qlcnic_sysfs_read_mem(struct file *filp, struct kobject *kobj,
3511                 struct bin_attribute *attr,
3512                 char *buf, loff_t offset, size_t size)
3513 {
3514         struct device *dev = container_of(kobj, struct device, kobj);
3515         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3516         u64 data;
3517         int ret;
3518
3519         ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
3520         if (ret != 0)
3521                 return ret;
3522
3523         if (qlcnic_pci_mem_read_2M(adapter, offset, &data))
3524                 return -EIO;
3525
3526         memcpy(buf, &data, size);
3527
3528         return size;
3529 }
3530
3531 static ssize_t
3532 qlcnic_sysfs_write_mem(struct file *filp, struct kobject *kobj,
3533                 struct bin_attribute *attr,
3534                 char *buf, loff_t offset, size_t size)
3535 {
3536         struct device *dev = container_of(kobj, struct device, kobj);
3537         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3538         u64 data;
3539         int ret;
3540
3541         ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
3542         if (ret != 0)
3543                 return ret;
3544
3545         memcpy(&data, buf, size);
3546
3547         if (qlcnic_pci_mem_write_2M(adapter, offset, data))
3548                 return -EIO;
3549
3550         return size;
3551 }
3552
3553 static struct bin_attribute bin_attr_crb = {
3554         .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
3555         .size = 0,
3556         .read = qlcnic_sysfs_read_crb,
3557         .write = qlcnic_sysfs_write_crb,
3558 };
3559
3560 static struct bin_attribute bin_attr_mem = {
3561         .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
3562         .size = 0,
3563         .read = qlcnic_sysfs_read_mem,
3564         .write = qlcnic_sysfs_write_mem,
3565 };
3566
3567 static int
3568 validate_pm_config(struct qlcnic_adapter *adapter,
3569                         struct qlcnic_pm_func_cfg *pm_cfg, int count)
3570 {
3571
3572         u8 src_pci_func, s_esw_id, d_esw_id;
3573         u8 dest_pci_func;
3574         int i;
3575
3576         for (i = 0; i < count; i++) {
3577                 src_pci_func = pm_cfg[i].pci_func;
3578                 dest_pci_func = pm_cfg[i].dest_npar;
3579                 if (src_pci_func >= QLCNIC_MAX_PCI_FUNC
3580                                 || dest_pci_func >= QLCNIC_MAX_PCI_FUNC)
3581                         return QL_STATUS_INVALID_PARAM;
3582
3583                 if (adapter->npars[src_pci_func].type != QLCNIC_TYPE_NIC)
3584                         return QL_STATUS_INVALID_PARAM;
3585
3586                 if (adapter->npars[dest_pci_func].type != QLCNIC_TYPE_NIC)
3587                         return QL_STATUS_INVALID_PARAM;
3588
3589                 s_esw_id = adapter->npars[src_pci_func].phy_port;
3590                 d_esw_id = adapter->npars[dest_pci_func].phy_port;
3591
3592                 if (s_esw_id != d_esw_id)
3593                         return QL_STATUS_INVALID_PARAM;
3594
3595         }
3596         return 0;
3597
3598 }
3599
3600 static ssize_t
3601 qlcnic_sysfs_write_pm_config(struct file *filp, struct kobject *kobj,
3602         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3603 {
3604         struct device *dev = container_of(kobj, struct device, kobj);
3605         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3606         struct qlcnic_pm_func_cfg *pm_cfg;
3607         u32 id, action, pci_func;
3608         int count, rem, i, ret;
3609
3610         count   = size / sizeof(struct qlcnic_pm_func_cfg);
3611         rem     = size % sizeof(struct qlcnic_pm_func_cfg);
3612         if (rem)
3613                 return QL_STATUS_INVALID_PARAM;
3614
3615         pm_cfg = (struct qlcnic_pm_func_cfg *) buf;
3616
3617         ret = validate_pm_config(adapter, pm_cfg, count);
3618         if (ret)
3619                 return ret;
3620         for (i = 0; i < count; i++) {
3621                 pci_func = pm_cfg[i].pci_func;
3622                 action = !!pm_cfg[i].action;
3623                 id = adapter->npars[pci_func].phy_port;
3624                 ret = qlcnic_config_port_mirroring(adapter, id,
3625                                                 action, pci_func);
3626                 if (ret)
3627                         return ret;
3628         }
3629
3630         for (i = 0; i < count; i++) {
3631                 pci_func = pm_cfg[i].pci_func;
3632                 id = adapter->npars[pci_func].phy_port;
3633                 adapter->npars[pci_func].enable_pm = !!pm_cfg[i].action;
3634                 adapter->npars[pci_func].dest_npar = id;
3635         }
3636         return size;
3637 }
3638
3639 static ssize_t
3640 qlcnic_sysfs_read_pm_config(struct file *filp, struct kobject *kobj,
3641         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3642 {
3643         struct device *dev = container_of(kobj, struct device, kobj);
3644         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3645         struct qlcnic_pm_func_cfg pm_cfg[QLCNIC_MAX_PCI_FUNC];
3646         int i;
3647
3648         if (size != sizeof(pm_cfg))
3649                 return QL_STATUS_INVALID_PARAM;
3650
3651         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
3652                 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3653                         continue;
3654                 pm_cfg[i].action = adapter->npars[i].enable_pm;
3655                 pm_cfg[i].dest_npar = 0;
3656                 pm_cfg[i].pci_func = i;
3657         }
3658         memcpy(buf, &pm_cfg, size);
3659
3660         return size;
3661 }
3662
3663 static int
3664 validate_esw_config(struct qlcnic_adapter *adapter,
3665         struct qlcnic_esw_func_cfg *esw_cfg, int count)
3666 {
3667         u32 op_mode;
3668         u8 pci_func;
3669         int i;
3670
3671         op_mode = readl(adapter->ahw->pci_base0 + QLCNIC_DRV_OP_MODE);
3672
3673         for (i = 0; i < count; i++) {
3674                 pci_func = esw_cfg[i].pci_func;
3675                 if (pci_func >= QLCNIC_MAX_PCI_FUNC)
3676                         return QL_STATUS_INVALID_PARAM;
3677
3678                 if (adapter->op_mode == QLCNIC_MGMT_FUNC)
3679                         if (adapter->npars[pci_func].type != QLCNIC_TYPE_NIC)
3680                                 return QL_STATUS_INVALID_PARAM;
3681
3682                 switch (esw_cfg[i].op_mode) {
3683                 case QLCNIC_PORT_DEFAULTS:
3684                         if (QLC_DEV_GET_DRV(op_mode, pci_func) !=
3685                                                 QLCNIC_NON_PRIV_FUNC) {
3686                                 if (esw_cfg[i].mac_anti_spoof != 0)
3687                                         return QL_STATUS_INVALID_PARAM;
3688                                 if (esw_cfg[i].mac_override != 1)
3689                                         return QL_STATUS_INVALID_PARAM;
3690                                 if (esw_cfg[i].promisc_mode != 1)
3691                                         return QL_STATUS_INVALID_PARAM;
3692                         }
3693                         break;
3694                 case QLCNIC_ADD_VLAN:
3695                         if (!IS_VALID_VLAN(esw_cfg[i].vlan_id))
3696                                 return QL_STATUS_INVALID_PARAM;
3697                         if (!esw_cfg[i].op_type)
3698                                 return QL_STATUS_INVALID_PARAM;
3699                         break;
3700                 case QLCNIC_DEL_VLAN:
3701                         if (!esw_cfg[i].op_type)
3702                                 return QL_STATUS_INVALID_PARAM;
3703                         break;
3704                 default:
3705                         return QL_STATUS_INVALID_PARAM;
3706                 }
3707         }
3708         return 0;
3709 }
3710
3711 static ssize_t
3712 qlcnic_sysfs_write_esw_config(struct file *file, struct kobject *kobj,
3713         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3714 {
3715         struct device *dev = container_of(kobj, struct device, kobj);
3716         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3717         struct qlcnic_esw_func_cfg *esw_cfg;
3718         struct qlcnic_npar_info *npar;
3719         int count, rem, i, ret;
3720         u8 pci_func, op_mode = 0;
3721
3722         count   = size / sizeof(struct qlcnic_esw_func_cfg);
3723         rem     = size % sizeof(struct qlcnic_esw_func_cfg);
3724         if (rem)
3725                 return QL_STATUS_INVALID_PARAM;
3726
3727         esw_cfg = (struct qlcnic_esw_func_cfg *) buf;
3728         ret = validate_esw_config(adapter, esw_cfg, count);
3729         if (ret)
3730                 return ret;
3731
3732         for (i = 0; i < count; i++) {
3733                 if (adapter->op_mode == QLCNIC_MGMT_FUNC)
3734                         if (qlcnic_config_switch_port(adapter, &esw_cfg[i]))
3735                                 return QL_STATUS_INVALID_PARAM;
3736
3737                 if (adapter->ahw->pci_func != esw_cfg[i].pci_func)
3738                         continue;
3739
3740                 op_mode = esw_cfg[i].op_mode;
3741                 qlcnic_get_eswitch_port_config(adapter, &esw_cfg[i]);
3742                 esw_cfg[i].op_mode = op_mode;
3743                 esw_cfg[i].pci_func = adapter->ahw->pci_func;
3744
3745                 switch (esw_cfg[i].op_mode) {
3746                 case QLCNIC_PORT_DEFAULTS:
3747                         qlcnic_set_eswitch_port_features(adapter, &esw_cfg[i]);
3748                         break;
3749                 case QLCNIC_ADD_VLAN:
3750                         qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
3751                         break;
3752                 case QLCNIC_DEL_VLAN:
3753                         esw_cfg[i].vlan_id = 0;
3754                         qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
3755                         break;
3756                 }
3757         }
3758
3759         if (adapter->op_mode != QLCNIC_MGMT_FUNC)
3760                 goto out;
3761
3762         for (i = 0; i < count; i++) {
3763                 pci_func = esw_cfg[i].pci_func;
3764                 npar = &adapter->npars[pci_func];
3765                 switch (esw_cfg[i].op_mode) {
3766                 case QLCNIC_PORT_DEFAULTS:
3767                         npar->promisc_mode = esw_cfg[i].promisc_mode;
3768                         npar->mac_override = esw_cfg[i].mac_override;
3769                         npar->offload_flags = esw_cfg[i].offload_flags;
3770                         npar->mac_anti_spoof = esw_cfg[i].mac_anti_spoof;
3771                         npar->discard_tagged = esw_cfg[i].discard_tagged;
3772                         break;
3773                 case QLCNIC_ADD_VLAN:
3774                         npar->pvid = esw_cfg[i].vlan_id;
3775                         break;
3776                 case QLCNIC_DEL_VLAN:
3777                         npar->pvid = 0;
3778                         break;
3779                 }
3780         }
3781 out:
3782         return size;
3783 }
3784
3785 static ssize_t
3786 qlcnic_sysfs_read_esw_config(struct file *file, struct kobject *kobj,
3787         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3788 {
3789         struct device *dev = container_of(kobj, struct device, kobj);
3790         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3791         struct qlcnic_esw_func_cfg esw_cfg[QLCNIC_MAX_PCI_FUNC];
3792         u8 i;
3793
3794         if (size != sizeof(esw_cfg))
3795                 return QL_STATUS_INVALID_PARAM;
3796
3797         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
3798                 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3799                         continue;
3800                 esw_cfg[i].pci_func = i;
3801                 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg[i]))
3802                         return QL_STATUS_INVALID_PARAM;
3803         }
3804         memcpy(buf, &esw_cfg, size);
3805
3806         return size;
3807 }
3808
3809 static int
3810 validate_npar_config(struct qlcnic_adapter *adapter,
3811                                 struct qlcnic_npar_func_cfg *np_cfg, int count)
3812 {
3813         u8 pci_func, i;
3814
3815         for (i = 0; i < count; i++) {
3816                 pci_func = np_cfg[i].pci_func;
3817                 if (pci_func >= QLCNIC_MAX_PCI_FUNC)
3818                         return QL_STATUS_INVALID_PARAM;
3819
3820                 if (adapter->npars[pci_func].type != QLCNIC_TYPE_NIC)
3821                         return QL_STATUS_INVALID_PARAM;
3822
3823                 if (!IS_VALID_BW(np_cfg[i].min_bw) ||
3824                     !IS_VALID_BW(np_cfg[i].max_bw))
3825                         return QL_STATUS_INVALID_PARAM;
3826         }
3827         return 0;
3828 }
3829
3830 static ssize_t
3831 qlcnic_sysfs_write_npar_config(struct file *file, struct kobject *kobj,
3832         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3833 {
3834         struct device *dev = container_of(kobj, struct device, kobj);
3835         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3836         struct qlcnic_info nic_info;
3837         struct qlcnic_npar_func_cfg *np_cfg;
3838         int i, count, rem, ret;
3839         u8 pci_func;
3840
3841         count   = size / sizeof(struct qlcnic_npar_func_cfg);
3842         rem     = size % sizeof(struct qlcnic_npar_func_cfg);
3843         if (rem)
3844                 return QL_STATUS_INVALID_PARAM;
3845
3846         np_cfg = (struct qlcnic_npar_func_cfg *) buf;
3847         ret = validate_npar_config(adapter, np_cfg, count);
3848         if (ret)
3849                 return ret;
3850
3851         for (i = 0; i < count ; i++) {
3852                 pci_func = np_cfg[i].pci_func;
3853                 ret = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
3854                 if (ret)
3855                         return ret;
3856                 nic_info.pci_func = pci_func;
3857                 nic_info.min_tx_bw = np_cfg[i].min_bw;
3858                 nic_info.max_tx_bw = np_cfg[i].max_bw;
3859                 ret = qlcnic_set_nic_info(adapter, &nic_info);
3860                 if (ret)
3861                         return ret;
3862                 adapter->npars[i].min_bw = nic_info.min_tx_bw;
3863                 adapter->npars[i].max_bw = nic_info.max_tx_bw;
3864         }
3865
3866         return size;
3867
3868 }
3869 static ssize_t
3870 qlcnic_sysfs_read_npar_config(struct file *file, struct kobject *kobj,
3871         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3872 {
3873         struct device *dev = container_of(kobj, struct device, kobj);
3874         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3875         struct qlcnic_info nic_info;
3876         struct qlcnic_npar_func_cfg np_cfg[QLCNIC_MAX_PCI_FUNC];
3877         int i, ret;
3878
3879         if (size != sizeof(np_cfg))
3880                 return QL_STATUS_INVALID_PARAM;
3881
3882         for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) {
3883                 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3884                         continue;
3885                 ret = qlcnic_get_nic_info(adapter, &nic_info, i);
3886                 if (ret)
3887                         return ret;
3888
3889                 np_cfg[i].pci_func = i;
3890                 np_cfg[i].op_mode = (u8)nic_info.op_mode;
3891                 np_cfg[i].port_num = nic_info.phys_port;
3892                 np_cfg[i].fw_capab = nic_info.capabilities;
3893                 np_cfg[i].min_bw = nic_info.min_tx_bw ;
3894                 np_cfg[i].max_bw = nic_info.max_tx_bw;
3895                 np_cfg[i].max_tx_queues = nic_info.max_tx_ques;
3896                 np_cfg[i].max_rx_queues = nic_info.max_rx_ques;
3897         }
3898         memcpy(buf, &np_cfg, size);
3899         return size;
3900 }
3901
3902 static ssize_t
3903 qlcnic_sysfs_get_port_stats(struct file *file, struct kobject *kobj,
3904         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3905 {
3906         struct device *dev = container_of(kobj, struct device, kobj);
3907         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3908         struct qlcnic_esw_statistics port_stats;
3909         int ret;
3910
3911         if (size != sizeof(struct qlcnic_esw_statistics))
3912                 return QL_STATUS_INVALID_PARAM;
3913
3914         if (offset >= QLCNIC_MAX_PCI_FUNC)
3915                 return QL_STATUS_INVALID_PARAM;
3916
3917         memset(&port_stats, 0, size);
3918         ret = qlcnic_get_port_stats(adapter, offset, QLCNIC_QUERY_RX_COUNTER,
3919                                                                 &port_stats.rx);
3920         if (ret)
3921                 return ret;
3922
3923         ret = qlcnic_get_port_stats(adapter, offset, QLCNIC_QUERY_TX_COUNTER,
3924                                                                 &port_stats.tx);
3925         if (ret)
3926                 return ret;
3927
3928         memcpy(buf, &port_stats, size);
3929         return size;
3930 }
3931
3932 static ssize_t
3933 qlcnic_sysfs_get_esw_stats(struct file *file, struct kobject *kobj,
3934         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3935 {
3936         struct device *dev = container_of(kobj, struct device, kobj);
3937         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3938         struct qlcnic_esw_statistics esw_stats;
3939         int ret;
3940
3941         if (size != sizeof(struct qlcnic_esw_statistics))
3942                 return QL_STATUS_INVALID_PARAM;
3943
3944         if (offset >= QLCNIC_NIU_MAX_XG_PORTS)
3945                 return QL_STATUS_INVALID_PARAM;
3946
3947         memset(&esw_stats, 0, size);
3948         ret = qlcnic_get_eswitch_stats(adapter, offset, QLCNIC_QUERY_RX_COUNTER,
3949                                                                 &esw_stats.rx);
3950         if (ret)
3951                 return ret;
3952
3953         ret = qlcnic_get_eswitch_stats(adapter, offset, QLCNIC_QUERY_TX_COUNTER,
3954                                                                 &esw_stats.tx);
3955         if (ret)
3956                 return ret;
3957
3958         memcpy(buf, &esw_stats, size);
3959         return size;
3960 }
3961
3962 static ssize_t
3963 qlcnic_sysfs_clear_esw_stats(struct file *file, struct kobject *kobj,
3964         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3965 {
3966         struct device *dev = container_of(kobj, struct device, kobj);
3967         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3968         int ret;
3969
3970         if (offset >= QLCNIC_NIU_MAX_XG_PORTS)
3971                 return QL_STATUS_INVALID_PARAM;
3972
3973         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_ESWITCH, offset,
3974                                                 QLCNIC_QUERY_RX_COUNTER);
3975         if (ret)
3976                 return ret;
3977
3978         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_ESWITCH, offset,
3979                                                 QLCNIC_QUERY_TX_COUNTER);
3980         if (ret)
3981                 return ret;
3982
3983         return size;
3984 }
3985
3986 static ssize_t
3987 qlcnic_sysfs_clear_port_stats(struct file *file, struct kobject *kobj,
3988         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3989 {
3990
3991         struct device *dev = container_of(kobj, struct device, kobj);
3992         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3993         int ret;
3994
3995         if (offset >= QLCNIC_MAX_PCI_FUNC)
3996                 return QL_STATUS_INVALID_PARAM;
3997
3998         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_PORT, offset,
3999                                                 QLCNIC_QUERY_RX_COUNTER);
4000         if (ret)
4001                 return ret;
4002
4003         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_PORT, offset,
4004                                                 QLCNIC_QUERY_TX_COUNTER);
4005         if (ret)
4006                 return ret;
4007
4008         return size;
4009 }
4010
4011 static ssize_t
4012 qlcnic_sysfs_read_pci_config(struct file *file, struct kobject *kobj,
4013         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
4014 {
4015         struct device *dev = container_of(kobj, struct device, kobj);
4016         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
4017         struct qlcnic_pci_func_cfg pci_cfg[QLCNIC_MAX_PCI_FUNC];
4018         struct qlcnic_pci_info *pci_info;
4019         int i, ret;
4020
4021         if (size != sizeof(pci_cfg))
4022                 return QL_STATUS_INVALID_PARAM;
4023
4024         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
4025         if (!pci_info)
4026                 return -ENOMEM;
4027
4028         ret = qlcnic_get_pci_info(adapter, pci_info);
4029         if (ret) {
4030                 kfree(pci_info);
4031                 return ret;
4032         }
4033
4034         for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) {
4035                 pci_cfg[i].pci_func = pci_info[i].id;
4036                 pci_cfg[i].func_type = pci_info[i].type;
4037                 pci_cfg[i].port_num = pci_info[i].default_port;
4038                 pci_cfg[i].min_bw = pci_info[i].tx_min_bw;
4039                 pci_cfg[i].max_bw = pci_info[i].tx_max_bw;
4040                 memcpy(&pci_cfg[i].def_mac_addr, &pci_info[i].mac, ETH_ALEN);
4041         }
4042         memcpy(buf, &pci_cfg, size);
4043         kfree(pci_info);
4044         return size;
4045 }
4046 static struct bin_attribute bin_attr_npar_config = {
4047         .attr = {.name = "npar_config", .mode = (S_IRUGO | S_IWUSR)},
4048         .size = 0,
4049         .read = qlcnic_sysfs_read_npar_config,
4050         .write = qlcnic_sysfs_write_npar_config,
4051 };
4052
4053 static struct bin_attribute bin_attr_pci_config = {
4054         .attr = {.name = "pci_config", .mode = (S_IRUGO | S_IWUSR)},
4055         .size = 0,
4056         .read = qlcnic_sysfs_read_pci_config,
4057         .write = NULL,
4058 };
4059
4060 static struct bin_attribute bin_attr_port_stats = {
4061         .attr = {.name = "port_stats", .mode = (S_IRUGO | S_IWUSR)},
4062         .size = 0,
4063         .read = qlcnic_sysfs_get_port_stats,
4064         .write = qlcnic_sysfs_clear_port_stats,
4065 };
4066
4067 static struct bin_attribute bin_attr_esw_stats = {
4068         .attr = {.name = "esw_stats", .mode = (S_IRUGO | S_IWUSR)},
4069         .size = 0,
4070         .read = qlcnic_sysfs_get_esw_stats,
4071         .write = qlcnic_sysfs_clear_esw_stats,
4072 };
4073
4074 static struct bin_attribute bin_attr_esw_config = {
4075         .attr = {.name = "esw_config", .mode = (S_IRUGO | S_IWUSR)},
4076         .size = 0,
4077         .read = qlcnic_sysfs_read_esw_config,
4078         .write = qlcnic_sysfs_write_esw_config,
4079 };
4080
4081 static struct bin_attribute bin_attr_pm_config = {
4082         .attr = {.name = "pm_config", .mode = (S_IRUGO | S_IWUSR)},
4083         .size = 0,
4084         .read = qlcnic_sysfs_read_pm_config,
4085         .write = qlcnic_sysfs_write_pm_config,
4086 };
4087
4088 static void
4089 qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter)
4090 {
4091         struct device *dev = &adapter->pdev->dev;
4092
4093         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
4094                 if (device_create_file(dev, &dev_attr_bridged_mode))
4095                         dev_warn(dev,
4096                                 "failed to create bridged_mode sysfs entry\n");
4097 }
4098
4099 static void
4100 qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter)
4101 {
4102         struct device *dev = &adapter->pdev->dev;
4103
4104         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
4105                 device_remove_file(dev, &dev_attr_bridged_mode);
4106 }
4107
4108 static void
4109 qlcnic_create_diag_entries(struct qlcnic_adapter *adapter)
4110 {
4111         struct device *dev = &adapter->pdev->dev;
4112
4113         if (device_create_bin_file(dev, &bin_attr_port_stats))
4114                 dev_info(dev, "failed to create port stats sysfs entry");
4115
4116         if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
4117                 return;
4118         if (device_create_file(dev, &dev_attr_diag_mode))
4119                 dev_info(dev, "failed to create diag_mode sysfs entry\n");
4120         if (device_create_bin_file(dev, &bin_attr_crb))
4121                 dev_info(dev, "failed to create crb sysfs entry\n");
4122         if (device_create_bin_file(dev, &bin_attr_mem))
4123                 dev_info(dev, "failed to create mem sysfs entry\n");
4124         if (device_create_bin_file(dev, &bin_attr_pci_config))
4125                 dev_info(dev, "failed to create pci config sysfs entry");
4126         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
4127                 return;
4128         if (device_create_bin_file(dev, &bin_attr_esw_config))
4129                 dev_info(dev, "failed to create esw config sysfs entry");
4130         if (adapter->op_mode != QLCNIC_MGMT_FUNC)
4131                 return;
4132         if (device_create_bin_file(dev, &bin_attr_npar_config))
4133                 dev_info(dev, "failed to create npar config sysfs entry");
4134         if (device_create_bin_file(dev, &bin_attr_pm_config))
4135                 dev_info(dev, "failed to create pm config sysfs entry");
4136         if (device_create_bin_file(dev, &bin_attr_esw_stats))
4137                 dev_info(dev, "failed to create eswitch stats sysfs entry");
4138 }
4139
4140 static void
4141 qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter)
4142 {
4143         struct device *dev = &adapter->pdev->dev;
4144
4145         device_remove_bin_file(dev, &bin_attr_port_stats);
4146
4147         if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
4148                 return;
4149         device_remove_file(dev, &dev_attr_diag_mode);
4150         device_remove_bin_file(dev, &bin_attr_crb);
4151         device_remove_bin_file(dev, &bin_attr_mem);
4152         device_remove_bin_file(dev, &bin_attr_pci_config);
4153         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
4154                 return;
4155         device_remove_bin_file(dev, &bin_attr_esw_config);
4156         if (adapter->op_mode != QLCNIC_MGMT_FUNC)
4157                 return;
4158         device_remove_bin_file(dev, &bin_attr_npar_config);
4159         device_remove_bin_file(dev, &bin_attr_pm_config);
4160         device_remove_bin_file(dev, &bin_attr_esw_stats);
4161 }
4162
4163 #ifdef CONFIG_INET
4164
4165 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4166
4167 static void
4168 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4169                         struct net_device *dev, unsigned long event)
4170 {
4171         struct in_device *indev;
4172
4173         indev = in_dev_get(dev);
4174         if (!indev)
4175                 return;
4176
4177         for_ifa(indev) {
4178                 switch (event) {
4179                 case NETDEV_UP:
4180                         qlcnic_config_ipaddr(adapter,
4181                                         ifa->ifa_address, QLCNIC_IP_UP);
4182                         break;
4183                 case NETDEV_DOWN:
4184                         qlcnic_config_ipaddr(adapter,
4185                                         ifa->ifa_address, QLCNIC_IP_DOWN);
4186                         break;
4187                 default:
4188                         break;
4189                 }
4190         } endfor_ifa(indev);
4191
4192         in_dev_put(indev);
4193 }
4194
4195 static void
4196 qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4197 {
4198         struct qlcnic_adapter *adapter = netdev_priv(netdev);
4199         struct net_device *dev;
4200         u16 vid;
4201
4202         qlcnic_config_indev_addr(adapter, netdev, event);
4203
4204         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
4205                 dev = vlan_find_dev(netdev, vid);
4206                 if (!dev)
4207                         continue;
4208                 qlcnic_config_indev_addr(adapter, dev, event);
4209         }
4210 }
4211
4212 static int qlcnic_netdev_event(struct notifier_block *this,
4213                                  unsigned long event, void *ptr)
4214 {
4215         struct qlcnic_adapter *adapter;
4216         struct net_device *dev = (struct net_device *)ptr;
4217
4218 recheck:
4219         if (dev == NULL)
4220                 goto done;
4221
4222         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4223                 dev = vlan_dev_real_dev(dev);
4224                 goto recheck;
4225         }
4226
4227         if (!is_qlcnic_netdev(dev))
4228                 goto done;
4229
4230         adapter = netdev_priv(dev);
4231
4232         if (!adapter)
4233                 goto done;
4234
4235         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4236                 goto done;
4237
4238         qlcnic_config_indev_addr(adapter, dev, event);
4239 done:
4240         return NOTIFY_DONE;
4241 }
4242
4243 static int
4244 qlcnic_inetaddr_event(struct notifier_block *this,
4245                 unsigned long event, void *ptr)
4246 {
4247         struct qlcnic_adapter *adapter;
4248         struct net_device *dev;
4249
4250         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4251
4252         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4253
4254 recheck:
4255         if (dev == NULL)
4256                 goto done;
4257
4258         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4259                 dev = vlan_dev_real_dev(dev);
4260                 goto recheck;
4261         }
4262
4263         if (!is_qlcnic_netdev(dev))
4264                 goto done;
4265
4266         adapter = netdev_priv(dev);
4267
4268         if (!adapter)
4269                 goto done;
4270
4271         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4272                 goto done;
4273
4274         switch (event) {
4275         case NETDEV_UP:
4276                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4277                 break;
4278         case NETDEV_DOWN:
4279                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4280                 break;
4281         default:
4282                 break;
4283         }
4284
4285 done:
4286         return NOTIFY_DONE;
4287 }
4288
4289 static struct notifier_block    qlcnic_netdev_cb = {
4290         .notifier_call = qlcnic_netdev_event,
4291 };
4292
4293 static struct notifier_block qlcnic_inetaddr_cb = {
4294         .notifier_call = qlcnic_inetaddr_event,
4295 };
4296 #else
4297 static void
4298 qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4299 { }
4300 #endif
4301 static struct pci_error_handlers qlcnic_err_handler = {
4302         .error_detected = qlcnic_io_error_detected,
4303         .slot_reset = qlcnic_io_slot_reset,
4304         .resume = qlcnic_io_resume,
4305 };
4306
4307 static struct pci_driver qlcnic_driver = {
4308         .name = qlcnic_driver_name,
4309         .id_table = qlcnic_pci_tbl,
4310         .probe = qlcnic_probe,
4311         .remove = __devexit_p(qlcnic_remove),
4312 #ifdef CONFIG_PM
4313         .suspend = qlcnic_suspend,
4314         .resume = qlcnic_resume,
4315 #endif
4316         .shutdown = qlcnic_shutdown,
4317         .err_handler = &qlcnic_err_handler
4318
4319 };
4320
4321 static int __init qlcnic_init_module(void)
4322 {
4323         int ret;
4324
4325         printk(KERN_INFO "%s\n", qlcnic_driver_string);
4326
4327         qlcnic_wq = create_singlethread_workqueue("qlcnic");
4328         if (qlcnic_wq == NULL) {
4329                 printk(KERN_ERR "qlcnic: cannot create workqueue\n");
4330                 return -ENOMEM;
4331         }
4332
4333 #ifdef CONFIG_INET
4334         register_netdevice_notifier(&qlcnic_netdev_cb);
4335         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4336 #endif
4337
4338         ret = pci_register_driver(&qlcnic_driver);
4339         if (ret) {
4340 #ifdef CONFIG_INET
4341                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4342                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4343 #endif
4344                 destroy_workqueue(qlcnic_wq);
4345         }
4346
4347         return ret;
4348 }
4349
4350 module_init(qlcnic_init_module);
4351
4352 static void __exit qlcnic_exit_module(void)
4353 {
4354
4355         pci_unregister_driver(&qlcnic_driver);
4356
4357 #ifdef CONFIG_INET
4358         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4359         unregister_netdevice_notifier(&qlcnic_netdev_cb);
4360 #endif
4361         destroy_workqueue(qlcnic_wq);
4362 }
4363
4364 module_exit(qlcnic_exit_module);