drivers/net/qlcnic/qlcnic_main.c

   1 /*
   2  * Copyright (C) 2009 - QLogic Corporation.
   3  * All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * as published by the Free Software Foundation; either version 2
   8  * of the License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  18  * MA  02111-1307, USA.
  19  *
  20  * The full GNU General Public License is included in this distribution
  21  * in the file called "COPYING".
  22  *
  23  */
  24
  25 #include <linux/slab.h>
  26 #include <linux/vmalloc.h>
  27 #include <linux/interrupt.h>
  28
  29 #include "qlcnic.h"
  30
  31 #include <linux/swab.h>
  32 #include <linux/dma-mapping.h>
  33 #include <linux/if_vlan.h>
  34 #include <net/ip.h>
  35 #include <linux/ipv6.h>
  36 #include <linux/inetdevice.h>
  37 #include <linux/sysfs.h>
  38 #include <linux/aer.h>
  39
  40 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
  41 MODULE_LICENSE("GPL");
  42 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
  43 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
  44
  45 char qlcnic_driver_name[] = "qlcnic";
  46 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
  47         "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
  48
  49 static struct workqueue_struct *qlcnic_wq;
  50 static int qlcnic_mac_learn;
  51 module_param(qlcnic_mac_learn, int, 0644);
  52 MODULE_PARM_DESC(qlcnic_mac_learn, "Mac Filter (0=disabled, 1=enabled)");
  53
  54 static int use_msi = 1;
  55 module_param(use_msi, int, 0644);
  56 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled");
  57
  58 static int use_msi_x = 1;
  59 module_param(use_msi_x, int, 0644);
  60 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled");
  61
  62 static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
  63 module_param(auto_fw_reset, int, 0644);
  64 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled");
  65
  66 static int load_fw_file;
  67 module_param(load_fw_file, int, 0644);
  68 MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file");
  69
  70 static int qlcnic_config_npars;
  71 module_param(qlcnic_config_npars, int, 0644);
  72 MODULE_PARM_DESC(qlcnic_config_npars, "Configure NPARs (0=disabled, 1=enabled");
  73
  74 static int __devinit qlcnic_probe(struct pci_dev *pdev,
  75                 const struct pci_device_id *ent);
  76 static void __devexit qlcnic_remove(struct pci_dev *pdev);
  77 static int qlcnic_open(struct net_device *netdev);
  78 static int qlcnic_close(struct net_device *netdev);
  79 static void qlcnic_tx_timeout(struct net_device *netdev);
  80 static void qlcnic_attach_work(struct work_struct *work);
  81 static void qlcnic_fwinit_work(struct work_struct *work);
  82 static void qlcnic_fw_poll_work(struct work_struct *work);
  83 static void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
  84                 work_func_t func, int delay);
  85 static void qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter);
  86 static int qlcnic_poll(struct napi_struct *napi, int budget);
  87 static int qlcnic_rx_poll(struct napi_struct *napi, int budget);
  88 #ifdef CONFIG_NET_POLL_CONTROLLER
  89 static void qlcnic_poll_controller(struct net_device *netdev);
  90 #endif
  91
  92 static void qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter);
  93 static void qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter);
  94 static void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter);
  95 static void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter);
  96
  97 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
  98 static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8);
  99 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
 100
 101 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
 102 static irqreturn_t qlcnic_intr(int irq, void *data);
 103 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
 104 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
 105
 106 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
 107 static void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long);
 108 static int qlcnic_start_firmware(struct qlcnic_adapter *);
 109
 110 static void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter);
 111 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
 112 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
 113 static int qlcnicvf_config_led(struct qlcnic_adapter *, u32, u32);
 114 static int qlcnicvf_config_bridged_mode(struct qlcnic_adapter *, u32);
 115 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
 116 static void qlcnic_set_netdev_features(struct qlcnic_adapter *,
 117                                 struct qlcnic_esw_func_cfg *);
 118 /*  PCI Device ID Table  */
 119 #define ENTRY(device) \
 120         {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
 121         .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
 122
 123 #define PCI_DEVICE_ID_QLOGIC_QLE824X  0x8020
 124
 125 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
 126         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
 127         {0,}
 128 };
 129
 130 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
 131
 132
 133 void
 134 qlcnic_update_cmd_producer(struct qlcnic_adapter *adapter,
 135                 struct qlcnic_host_tx_ring *tx_ring)
 136 {
 137         writel(tx_ring->producer, tx_ring->crb_cmd_producer);
 138 }
 139
 140 static const u32 msi_tgt_status[8] = {
 141         ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
 142         ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
 143         ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
 144         ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
 145 };
 146
 147 static const
 148 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
 149
 150 static inline void qlcnic_disable_int(struct qlcnic_host_sds_ring *sds_ring)
 151 {
 152         writel(0, sds_ring->crb_intr_mask);
 153 }
 154
 155 static inline void qlcnic_enable_int(struct qlcnic_host_sds_ring *sds_ring)
 156 {
 157         struct qlcnic_adapter *adapter = sds_ring->adapter;
 158
 159         writel(0x1, sds_ring->crb_intr_mask);
 160
 161         if (!QLCNIC_IS_MSI_FAMILY(adapter))
 162                 writel(0xfbff, adapter->tgt_mask_reg);
 163 }
 164
 165 static int
 166 qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
 167 {
 168         int size = sizeof(struct qlcnic_host_sds_ring) * count;
 169
 170         recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
 171
 172         return recv_ctx->sds_rings == NULL;
 173 }
 174
 175 static void
 176 qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
 177 {
 178         if (recv_ctx->sds_rings != NULL)
 179                 kfree(recv_ctx->sds_rings);
 180
 181         recv_ctx->sds_rings = NULL;
 182 }
 183
 184 static int
 185 qlcnic_napi_add(struct qlcnic_adapter *adapter, struct net_device *netdev)
 186 {
 187         int ring;
 188         struct qlcnic_host_sds_ring *sds_ring;
 189         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
 190
 191         if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
 192                 return -ENOMEM;
 193
 194         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 195                 sds_ring = &recv_ctx->sds_rings[ring];
 196
 197                 if (ring == adapter->max_sds_rings - 1)
 198                         netif_napi_add(netdev, &sds_ring->napi, qlcnic_poll,
 199                                 QLCNIC_NETDEV_WEIGHT/adapter->max_sds_rings);
 200                 else
 201                         netif_napi_add(netdev, &sds_ring->napi,
 202                                 qlcnic_rx_poll, QLCNIC_NETDEV_WEIGHT*2);
 203         }
 204
 205         return 0;
 206 }
 207
 208 static void
 209 qlcnic_napi_del(struct qlcnic_adapter *adapter)
 210 {
 211         int ring;
 212         struct qlcnic_host_sds_ring *sds_ring;
 213         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
 214
 215         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 216                 sds_ring = &recv_ctx->sds_rings[ring];
 217                 netif_napi_del(&sds_ring->napi);
 218         }
 219
 220         qlcnic_free_sds_rings(&adapter->recv_ctx);
 221 }
 222
 223 static void
 224 qlcnic_napi_enable(struct qlcnic_adapter *adapter)
 225 {
 226         int ring;
 227         struct qlcnic_host_sds_ring *sds_ring;
 228         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
 229
 230         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
 231                 return;
 232
 233         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 234                 sds_ring = &recv_ctx->sds_rings[ring];
 235                 napi_enable(&sds_ring->napi);
 236                 qlcnic_enable_int(sds_ring);
 237         }
 238 }
 239
 240 static void
 241 qlcnic_napi_disable(struct qlcnic_adapter *adapter)
 242 {
 243         int ring;
 244         struct qlcnic_host_sds_ring *sds_ring;
 245         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
 246
 247         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
 248                 return;
 249
 250         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 251                 sds_ring = &recv_ctx->sds_rings[ring];
 252                 qlcnic_disable_int(sds_ring);
 253                 napi_synchronize(&sds_ring->napi);
 254                 napi_disable(&sds_ring->napi);
 255         }
 256 }
 257
 258 static void qlcnic_clear_stats(struct qlcnic_adapter *adapter)
 259 {
 260         memset(&adapter->stats, 0, sizeof(adapter->stats));
 261 }
 262
 263 static void qlcnic_set_msix_bit(struct pci_dev *pdev, int enable)
 264 {
 265         u32 control;
 266         int pos;
 267
 268         pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
 269         if (pos) {
 270                 pci_read_config_dword(pdev, pos, &control);
 271                 if (enable)
 272                         control |= PCI_MSIX_FLAGS_ENABLE;
 273                 else
 274                         control = 0;
 275                 pci_write_config_dword(pdev, pos, control);
 276         }
 277 }
 278
 279 static void qlcnic_init_msix_entries(struct qlcnic_adapter *adapter, int count)
 280 {
 281         int i;
 282
 283         for (i = 0; i < count; i++)
 284                 adapter->msix_entries[i].entry = i;
 285 }
 286
 287 static int
 288 qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
 289 {
 290         u8 mac_addr[ETH_ALEN];
 291         struct net_device *netdev = adapter->netdev;
 292         struct pci_dev *pdev = adapter->pdev;
 293
 294         if (qlcnic_get_mac_address(adapter, mac_addr) != 0)
 295                 return -EIO;
 296
 297         memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
 298         memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
 299         memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
 300
 301         /* set station address */
 302
 303         if (!is_valid_ether_addr(netdev->perm_addr))
 304                 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
 305                                         netdev->dev_addr);
 306
 307         return 0;
 308 }
 309
 310 static int qlcnic_set_mac(struct net_device *netdev, void *p)
 311 {
 312         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 313         struct sockaddr *addr = p;
 314
 315         if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
 316                 return -EOPNOTSUPP;
 317
 318         if (!is_valid_ether_addr(addr->sa_data))
 319                 return -EINVAL;
 320
 321         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 322                 netif_device_detach(netdev);
 323                 qlcnic_napi_disable(adapter);
 324         }
 325
 326         memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
 327         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 328         qlcnic_set_multi(adapter->netdev);
 329
 330         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 331                 netif_device_attach(netdev);
 332                 qlcnic_napi_enable(adapter);
 333         }
 334         return 0;
 335 }
 336
 337 static void qlcnic_vlan_rx_register(struct net_device *netdev,
 338                 struct vlan_group *grp)
 339 {
 340         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 341         adapter->vlgrp = grp;
 342 }
 343
 344 static const struct net_device_ops qlcnic_netdev_ops = {
 345         .ndo_open          = qlcnic_open,
 346         .ndo_stop          = qlcnic_close,
 347         .ndo_start_xmit    = qlcnic_xmit_frame,
 348         .ndo_get_stats     = qlcnic_get_stats,
 349         .ndo_validate_addr = eth_validate_addr,
 350         .ndo_set_multicast_list = qlcnic_set_multi,
 351         .ndo_set_mac_address    = qlcnic_set_mac,
 352         .ndo_change_mtu    = qlcnic_change_mtu,
 353         .ndo_tx_timeout    = qlcnic_tx_timeout,
 354         .ndo_vlan_rx_register = qlcnic_vlan_rx_register,
 355 #ifdef CONFIG_NET_POLL_CONTROLLER
 356         .ndo_poll_controller = qlcnic_poll_controller,
 357 #endif
 358 };
 359
 360 static struct qlcnic_nic_template qlcnic_ops = {
 361         .config_bridged_mode = qlcnic_config_bridged_mode,
 362         .config_led = qlcnic_config_led,
 363         .start_firmware = qlcnic_start_firmware
 364 };
 365
 366 static struct qlcnic_nic_template qlcnic_vf_ops = {
 367         .config_bridged_mode = qlcnicvf_config_bridged_mode,
 368         .config_led = qlcnicvf_config_led,
 369         .start_firmware = qlcnicvf_start_firmware
 370 };
 371
 372 static void
 373 qlcnic_setup_intr(struct qlcnic_adapter *adapter)
 374 {
 375         const struct qlcnic_legacy_intr_set *legacy_intrp;
 376         struct pci_dev *pdev = adapter->pdev;
 377         int err, num_msix;
 378
 379         if (adapter->rss_supported) {
 380                 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
 381                         MSIX_ENTRIES_PER_ADAPTER : 2;
 382         } else
 383                 num_msix = 1;
 384
 385         adapter->max_sds_rings = 1;
 386
 387         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 388
 389         legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
 390
 391         adapter->int_vec_bit = legacy_intrp->int_vec_bit;
 392         adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
 393                         legacy_intrp->tgt_status_reg);
 394         adapter->tgt_mask_reg = qlcnic_get_ioaddr(adapter,
 395                         legacy_intrp->tgt_mask_reg);
 396         adapter->isr_int_vec = qlcnic_get_ioaddr(adapter, ISR_INT_VECTOR);
 397
 398         adapter->crb_int_state_reg = qlcnic_get_ioaddr(adapter,
 399                         ISR_INT_STATE_REG);
 400
 401         qlcnic_set_msix_bit(pdev, 0);
 402
 403         if (adapter->msix_supported) {
 404
 405                 qlcnic_init_msix_entries(adapter, num_msix);
 406                 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
 407                 if (err == 0) {
 408                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 409                         qlcnic_set_msix_bit(pdev, 1);
 410
 411                         if (adapter->rss_supported)
 412                                 adapter->max_sds_rings = num_msix;
 413
 414                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 415                         return;
 416                 }
 417
 418                 if (err > 0)
 419                         pci_disable_msix(pdev);
 420
 421                 /* fall through for msi */
 422         }
 423
 424         if (use_msi && !pci_enable_msi(pdev)) {
 425                 adapter->flags |= QLCNIC_MSI_ENABLED;
 426                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
 427                                 msi_tgt_status[adapter->ahw.pci_func]);
 428                 dev_info(&pdev->dev, "using msi interrupts\n");
 429                 adapter->msix_entries[0].vector = pdev->irq;
 430                 return;
 431         }
 432
 433         dev_info(&pdev->dev, "using legacy interrupts\n");
 434         adapter->msix_entries[0].vector = pdev->irq;
 435 }
 436
 437 static void
 438 qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 439 {
 440         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 441                 pci_disable_msix(adapter->pdev);
 442         if (adapter->flags & QLCNIC_MSI_ENABLED)
 443                 pci_disable_msi(adapter->pdev);
 444 }
 445
 446 static void
 447 qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter)
 448 {
 449         if (adapter->ahw.pci_base0 != NULL)
 450                 iounmap(adapter->ahw.pci_base0);
 451 }
 452
 453 static int
 454 qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 455 {
 456         struct qlcnic_pci_info *pci_info;
 457         int i, ret = 0;
 458         u8 pfn;
 459
 460         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 461         if (!pci_info)
 462                 return -ENOMEM;
 463
 464         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
 465                                 QLCNIC_MAX_PCI_FUNC, GFP_KERNEL);
 466         if (!adapter->npars) {
 467                 ret = -ENOMEM;
 468                 goto err_pci_info;
 469         }
 470
 471         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
 472                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
 473         if (!adapter->eswitch) {
 474                 ret = -ENOMEM;
 475                 goto err_npars;
 476         }
 477
 478         ret = qlcnic_get_pci_info(adapter, pci_info);
 479         if (ret)
 480                 goto err_eswitch;
 481
 482         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 483                 pfn = pci_info[i].id;
 484                 if (pfn > QLCNIC_MAX_PCI_FUNC)
 485                         return QL_STATUS_INVALID_PARAM;
 486                 adapter->npars[pfn].active = (u8)pci_info[i].active;
 487                 adapter->npars[pfn].type = (u8)pci_info[i].type;
 488                 adapter->npars[pfn].phy_port = (u8)pci_info[i].default_port;
 489                 adapter->npars[pfn].min_bw = pci_info[i].tx_min_bw;
 490                 adapter->npars[pfn].max_bw = pci_info[i].tx_max_bw;
 491         }
 492
 493         for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
 494                 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
 495
 496         kfree(pci_info);
 497         return 0;
 498
 499 err_eswitch:
 500         kfree(adapter->eswitch);
 501         adapter->eswitch = NULL;
 502 err_npars:
 503         kfree(adapter->npars);
 504         adapter->npars = NULL;
 505 err_pci_info:
 506         kfree(pci_info);
 507
 508         return ret;
 509 }
 510
 511 static int
 512 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
 513 {
 514         u8 id;
 515         u32 ref_count;
 516         int i, ret = 1;
 517         u32 data = QLCNIC_MGMT_FUNC;
 518         void __iomem *priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE;
 519
 520         /* If other drivers are not in use set their privilege level */
 521         ref_count = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
 522         ret = qlcnic_api_lock(adapter);
 523         if (ret)
 524                 goto err_lock;
 525
 526         if (qlcnic_config_npars) {
 527                 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 528                         id = i;
 529                         if (adapter->npars[i].type != QLCNIC_TYPE_NIC ||
 530                                 id == adapter->ahw.pci_func)
 531                                 continue;
 532                         data |= (qlcnic_config_npars &
 533                                         QLC_DEV_SET_DRV(0xf, id));
 534                 }
 535         } else {
 536                 data = readl(priv_op);
 537                 data = (data & ~QLC_DEV_SET_DRV(0xf, adapter->ahw.pci_func)) |
 538                         (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
 539                         adapter->ahw.pci_func));
 540         }
 541         writel(data, priv_op);
 542         qlcnic_api_unlock(adapter);
 543 err_lock:
 544         return ret;
 545 }
 546
 547 static void
 548 qlcnic_check_vf(struct qlcnic_adapter *adapter)
 549 {
 550         void __iomem *msix_base_addr;
 551         void __iomem *priv_op;
 552         u32 func;
 553         u32 msix_base;
 554         u32 op_mode, priv_level;
 555
 556         /* Determine FW API version */
 557         adapter->fw_hal_version = readl(adapter->ahw.pci_base0 + QLCNIC_FW_API);
 558
 559         /* Find PCI function number */
 560         pci_read_config_dword(adapter->pdev, QLCNIC_MSIX_TABLE_OFFSET, &func);
 561         msix_base_addr = adapter->ahw.pci_base0 + QLCNIC_MSIX_BASE;
 562         msix_base = readl(msix_base_addr);
 563         func = (func - msix_base)/QLCNIC_MSIX_TBL_PGSIZE;
 564         adapter->ahw.pci_func = func;
 565
 566         /* Determine function privilege level */
 567         priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE;
 568         op_mode = readl(priv_op);
 569         if (op_mode == QLC_DEV_DRV_DEFAULT)
 570                 priv_level = QLCNIC_MGMT_FUNC;
 571         else
 572                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw.pci_func);
 573
 574         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
 575                 adapter->op_mode = QLCNIC_NON_PRIV_FUNC;
 576                 dev_info(&adapter->pdev->dev,
 577                         "HAL Version: %d Non Privileged function\n",
 578                         adapter->fw_hal_version);
 579                 adapter->nic_ops = &qlcnic_vf_ops;
 580         } else
 581                 adapter->nic_ops = &qlcnic_ops;
 582 }
 583
 584 static int
 585 qlcnic_setup_pci_map(struct qlcnic_adapter *adapter)
 586 {
 587         void __iomem *mem_ptr0 = NULL;
 588         resource_size_t mem_base;
 589         unsigned long mem_len, pci_len0 = 0;
 590
 591         struct pci_dev *pdev = adapter->pdev;
 592
 593         /* remap phys address */
 594         mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
 595         mem_len = pci_resource_len(pdev, 0);
 596
 597         if (mem_len == QLCNIC_PCI_2MB_SIZE) {
 598
 599                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
 600                 if (mem_ptr0 == NULL) {
 601                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
 602                         return -EIO;
 603                 }
 604                 pci_len0 = mem_len;
 605         } else {
 606                 return -EIO;
 607         }
 608
 609         dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
 610
 611         adapter->ahw.pci_base0 = mem_ptr0;
 612         adapter->ahw.pci_len0 = pci_len0;
 613
 614         qlcnic_check_vf(adapter);
 615
 616         adapter->ahw.ocm_win_crb = qlcnic_get_ioaddr(adapter,
 617                 QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(adapter->ahw.pci_func)));
 618
 619         return 0;
 620 }
 621
 622 static void get_brd_name(struct qlcnic_adapter *adapter, char *name)
 623 {
 624         struct pci_dev *pdev = adapter->pdev;
 625         int i, found = 0;
 626
 627         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
 628                 if (qlcnic_boards[i].vendor == pdev->vendor &&
 629                         qlcnic_boards[i].device == pdev->device &&
 630                         qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
 631                         qlcnic_boards[i].sub_device == pdev->subsystem_device) {
 632                                 sprintf(name, "%pM: %s" ,
 633                                         adapter->mac_addr,
 634                                         qlcnic_boards[i].short_name);
 635                                 found = 1;
 636                                 break;
 637                 }
 638
 639         }
 640
 641         if (!found)
 642                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
 643 }
 644
 645 static void
 646 qlcnic_check_options(struct qlcnic_adapter *adapter)
 647 {
 648         u32 fw_major, fw_minor, fw_build;
 649         struct pci_dev *pdev = adapter->pdev;
 650
 651         fw_major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
 652         fw_minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
 653         fw_build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
 654
 655         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
 656
 657         dev_info(&pdev->dev, "firmware v%d.%d.%d\n",
 658                         fw_major, fw_minor, fw_build);
 659         if (adapter->ahw.port_type == QLCNIC_XGBE) {
 660                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 661                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
 662                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
 663                 } else {
 664                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
 665                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
 666                 }
 667
 668                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 669                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 670
 671         } else if (adapter->ahw.port_type == QLCNIC_GBE) {
 672                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
 673                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 674                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 675                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
 676         }
 677
 678         adapter->msix_supported = !!use_msi_x;
 679         adapter->rss_supported = !!use_msi_x;
 680
 681         adapter->num_txd = MAX_CMD_DESCRIPTORS;
 682
 683         adapter->max_rds_rings = MAX_RDS_RINGS;
 684 }
 685
 686 static int
 687 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
 688 {
 689         int err;
 690         struct qlcnic_info nic_info;
 691
 692         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw.pci_func);
 693         if (err)
 694                 return err;
 695
 696         adapter->physical_port = (u8)nic_info.phys_port;
 697         adapter->switch_mode = nic_info.switch_mode;
 698         adapter->max_tx_ques = nic_info.max_tx_ques;
 699         adapter->max_rx_ques = nic_info.max_rx_ques;
 700         adapter->capabilities = nic_info.capabilities;
 701         adapter->max_mac_filters = nic_info.max_mac_filters;
 702         adapter->max_mtu = nic_info.max_mtu;
 703
 704         if (adapter->capabilities & BIT_6)
 705                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
 706         else
 707                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
 708
 709         return err;
 710 }
 711
 712 static void
 713 qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
 714                 struct qlcnic_esw_func_cfg *esw_cfg)
 715 {
 716         if (esw_cfg->discard_tagged)
 717                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
 718         else
 719                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
 720
 721         if (esw_cfg->vlan_id)
 722                 adapter->pvid = esw_cfg->vlan_id;
 723         else
 724                 adapter->pvid = 0;
 725 }
 726
 727 static void
 728 qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
 729                 struct qlcnic_esw_func_cfg *esw_cfg)
 730 {
 731         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
 732                                 QLCNIC_PROMISC_DISABLED);
 733
 734         if (esw_cfg->mac_anti_spoof)
 735                 adapter->flags |= QLCNIC_MACSPOOF;
 736
 737         if (!esw_cfg->mac_override)
 738                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
 739
 740         if (!esw_cfg->promisc_mode)
 741                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
 742
 743         qlcnic_set_netdev_features(adapter, esw_cfg);
 744 }
 745
 746 static int
 747 qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
 748 {
 749         struct qlcnic_esw_func_cfg esw_cfg;
 750
 751         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
 752                 return 0;
 753
 754         esw_cfg.pci_func = adapter->ahw.pci_func;
 755         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
 756                         return -EIO;
 757         qlcnic_set_vlan_config(adapter, &esw_cfg);
 758         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
 759
 760         return 0;
 761 }
 762
 763 static void
 764 qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
 765                 struct qlcnic_esw_func_cfg *esw_cfg)
 766 {
 767         struct net_device *netdev = adapter->netdev;
 768         unsigned long features, vlan_features;
 769
 770         features = (NETIF_F_SG | NETIF_F_IP_CSUM |
 771                         NETIF_F_IPV6_CSUM | NETIF_F_GRO);
 772         vlan_features = (NETIF_F_SG | NETIF_F_IP_CSUM |
 773                         NETIF_F_IPV6_CSUM);
 774
 775         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO) {
 776                 features |= (NETIF_F_TSO | NETIF_F_TSO6);
 777                 vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
 778         }
 779         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
 780                 features |= NETIF_F_LRO;
 781
 782         if (esw_cfg->offload_flags & BIT_0) {
 783                 netdev->features |= features;
 784                 adapter->rx_csum = 1;
 785                 if (!(esw_cfg->offload_flags & BIT_1))
 786                         netdev->features &= ~NETIF_F_TSO;
 787                 if (!(esw_cfg->offload_flags & BIT_2))
 788                         netdev->features &= ~NETIF_F_TSO6;
 789         } else {
 790                 netdev->features &= ~features;
 791                 adapter->rx_csum = 0;
 792         }
 793
 794         netdev->vlan_features = (features & vlan_features);
 795 }
 796
 797 static int
 798 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
 799 {
 800         void __iomem *priv_op;
 801         u32 op_mode, priv_level;
 802         int err = 0;
 803
 804         err = qlcnic_initialize_nic(adapter);
 805         if (err)
 806                 return err;
 807
 808         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
 809                 return 0;
 810
 811         priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE;
 812         op_mode = readl(priv_op);
 813         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw.pci_func);
 814
 815         if (op_mode == QLC_DEV_DRV_DEFAULT)
 816                 priv_level = QLCNIC_MGMT_FUNC;
 817         else
 818                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw.pci_func);
 819
 820         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 821                 if (priv_level == QLCNIC_MGMT_FUNC) {
 822                         adapter->op_mode = QLCNIC_MGMT_FUNC;
 823                         err = qlcnic_init_pci_info(adapter);
 824                         if (err)
 825                                 return err;
 826                         /* Set privilege level for other functions */
 827                         qlcnic_set_function_modes(adapter);
 828                         dev_info(&adapter->pdev->dev,
 829                                 "HAL Version: %d, Management function\n",
 830                                 adapter->fw_hal_version);
 831                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
 832                         adapter->op_mode = QLCNIC_PRIV_FUNC;
 833                         dev_info(&adapter->pdev->dev,
 834                                 "HAL Version: %d, Privileged function\n",
 835                                 adapter->fw_hal_version);
 836                 }
 837         }
 838
 839         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
 840
 841         return err;
 842 }
 843
 844 static int
 845 qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
 846 {
 847         struct qlcnic_esw_func_cfg esw_cfg;
 848         struct qlcnic_npar_info *npar;
 849         u8 i;
 850
 851         if (adapter->need_fw_reset)
 852                 return 0;
 853
 854         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 855                 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
 856                         continue;
 857                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
 858                 esw_cfg.pci_func = i;
 859                 esw_cfg.offload_flags = BIT_0;
 860                 esw_cfg.mac_override = BIT_0;
 861                 esw_cfg.promisc_mode = BIT_0;
 862                 if (adapter->capabilities  & QLCNIC_FW_CAPABILITY_TSO)
 863                         esw_cfg.offload_flags |= (BIT_1 | BIT_2);
 864                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
 865                         return -EIO;
 866                 npar = &adapter->npars[i];
 867                 npar->pvid = esw_cfg.vlan_id;
 868                 npar->mac_override = esw_cfg.mac_override;
 869                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
 870                 npar->discard_tagged = esw_cfg.discard_tagged;
 871                 npar->promisc_mode = esw_cfg.promisc_mode;
 872                 npar->offload_flags = esw_cfg.offload_flags;
 873         }
 874
 875         return 0;
 876 }
 877
 878 static int
 879 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
 880                         struct qlcnic_npar_info *npar, int pci_func)
 881 {
 882         struct qlcnic_esw_func_cfg esw_cfg;
 883         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
 884         esw_cfg.pci_func = pci_func;
 885         esw_cfg.vlan_id = npar->pvid;
 886         esw_cfg.mac_override = npar->mac_override;
 887         esw_cfg.discard_tagged = npar->discard_tagged;
 888         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
 889         esw_cfg.offload_flags = npar->offload_flags;
 890         esw_cfg.promisc_mode = npar->promisc_mode;
 891         if (qlcnic_config_switch_port(adapter, &esw_cfg))
 892                 return -EIO;
 893
 894         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
 895         if (qlcnic_config_switch_port(adapter, &esw_cfg))
 896                 return -EIO;
 897
 898         return 0;
 899 }
 900
 901 static int
 902 qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
 903 {
 904         int i, err;
 905         struct qlcnic_npar_info *npar;
 906         struct qlcnic_info nic_info;
 907
 908         if (!adapter->need_fw_reset)
 909                 return 0;
 910
 911         /* Set the NPAR config data after FW reset */
 912         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 913                 npar = &adapter->npars[i];
 914                 if (npar->type != QLCNIC_TYPE_NIC)
 915                         continue;
 916                 err = qlcnic_get_nic_info(adapter, &nic_info, i);
 917                 if (err)
 918                         return err;
 919                 nic_info.min_tx_bw = npar->min_bw;
 920                 nic_info.max_tx_bw = npar->max_bw;
 921                 err = qlcnic_set_nic_info(adapter, &nic_info);
 922                 if (err)
 923                         return err;
 924
 925                 if (npar->enable_pm) {
 926                         err = qlcnic_config_port_mirroring(adapter,
 927                                                         npar->dest_npar, 1, i);
 928                         if (err)
 929                                 return err;
 930                 }
 931                 err = qlcnic_reset_eswitch_config(adapter, npar, i);
 932                 if (err)
 933                         return err;
 934         }
 935         return 0;
 936 }
 937
 938 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
 939 {
 940         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
 941         u32 npar_state;
 942
 943         if (adapter->op_mode == QLCNIC_MGMT_FUNC)
 944                 return 0;
 945
 946         npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
 947         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
 948                 msleep(1000);
 949                 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
 950         }
 951         if (!npar_opt_timeo) {
 952                 dev_err(&adapter->pdev->dev,
 953                         "Waiting for NPAR state to opertional timeout\n");
 954                 return -EIO;
 955         }
 956         return 0;
 957 }
 958
 959 static int
 960 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
 961 {
 962         int err;
 963
 964         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
 965                     adapter->op_mode != QLCNIC_MGMT_FUNC)
 966                 return 0;
 967
 968         err = qlcnic_set_default_offload_settings(adapter);
 969         if (err)
 970                 return err;
 971
 972         err = qlcnic_reset_npar_config(adapter);
 973         if (err)
 974                 return err;
 975
 976         qlcnic_dev_set_npar_ready(adapter);
 977
 978         return err;
 979 }
 980
 981 static int
 982 qlcnic_start_firmware(struct qlcnic_adapter *adapter)
 983 {
 984         int err;
 985
 986         err = qlcnic_can_start_firmware(adapter);
 987         if (err < 0)
 988                 return err;
 989         else if (!err)
 990                 goto check_fw_status;
 991
 992         if (load_fw_file)
 993                 qlcnic_request_firmware(adapter);
 994         else {
 995                 err = qlcnic_check_flash_fw_ver(adapter);
 996                 if (err)
 997                         goto err_out;
 998
 999                 adapter->fw_type = QLCNIC_FLASH_ROMIMAGE;
1000         }
1001
1002         err = qlcnic_need_fw_reset(adapter);
1003         if (err == 0)
1004                 goto check_fw_status;
1005
1006         err = qlcnic_pinit_from_rom(adapter);
1007         if (err)
1008                 goto err_out;
1009
1010         err = qlcnic_load_firmware(adapter);
1011         if (err)
1012                 goto err_out;
1013
1014         qlcnic_release_firmware(adapter);
1015         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1016
1017 check_fw_status:
1018         err = qlcnic_check_fw_status(adapter);
1019         if (err)
1020                 goto err_out;
1021
1022         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1023         qlcnic_idc_debug_info(adapter, 1);
1024
1025         err = qlcnic_check_eswitch_mode(adapter);
1026         if (err) {
1027                 dev_err(&adapter->pdev->dev,
1028                         "Memory allocation failed for eswitch\n");
1029                 goto err_out;
1030         }
1031         err = qlcnic_set_mgmt_operations(adapter);
1032         if (err)
1033                 goto err_out;
1034
1035         qlcnic_check_options(adapter);
1036         adapter->need_fw_reset = 0;
1037
1038         qlcnic_release_firmware(adapter);
1039         return 0;
1040
1041 err_out:
1042         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1043         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1044
1045         qlcnic_release_firmware(adapter);
1046         return err;
1047 }
1048
1049 static int
1050 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1051 {
1052         irq_handler_t handler;
1053         struct qlcnic_host_sds_ring *sds_ring;
1054         int err, ring;
1055
1056         unsigned long flags = 0;
1057         struct net_device *netdev = adapter->netdev;
1058         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1059
1060         if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1061                 handler = qlcnic_tmp_intr;
1062                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1063                         flags |= IRQF_SHARED;
1064
1065         } else {
1066                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1067                         handler = qlcnic_msix_intr;
1068                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1069                         handler = qlcnic_msi_intr;
1070                 else {
1071                         flags |= IRQF_SHARED;
1072                         handler = qlcnic_intr;
1073                 }
1074         }
1075         adapter->irq = netdev->irq;
1076
1077         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1078                 sds_ring = &recv_ctx->sds_rings[ring];
1079                 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
1080                 err = request_irq(sds_ring->irq, handler,
1081                                   flags, sds_ring->name, sds_ring);
1082                 if (err)
1083                         return err;
1084         }
1085
1086         return 0;
1087 }
1088
1089 static void
1090 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1091 {
1092         int ring;
1093         struct qlcnic_host_sds_ring *sds_ring;
1094
1095         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1096
1097         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1098                 sds_ring = &recv_ctx->sds_rings[ring];
1099                 free_irq(sds_ring->irq, sds_ring);
1100         }
1101 }
1102
1103 static void
1104 qlcnic_init_coalesce_defaults(struct qlcnic_adapter *adapter)
1105 {
1106         adapter->coal.flags = QLCNIC_INTR_DEFAULT;
1107         adapter->coal.normal.data.rx_time_us =
1108                 QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
1109         adapter->coal.normal.data.rx_packets =
1110                 QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
1111         adapter->coal.normal.data.tx_time_us =
1112                 QLCNIC_DEFAULT_INTR_COALESCE_TX_TIME_US;
1113         adapter->coal.normal.data.tx_packets =
1114                 QLCNIC_DEFAULT_INTR_COALESCE_TX_PACKETS;
1115 }
1116
1117 static int
1118 __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1119 {
1120         int ring;
1121         struct qlcnic_host_rds_ring *rds_ring;
1122
1123         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1124                 return -EIO;
1125
1126         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1127                 return 0;
1128         if (qlcnic_set_eswitch_port_config(adapter))
1129                 return -EIO;
1130
1131         if (qlcnic_fw_create_ctx(adapter))
1132                 return -EIO;
1133
1134         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1135                 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1136                 qlcnic_post_rx_buffers(adapter, ring, rds_ring);
1137         }
1138
1139         qlcnic_set_multi(netdev);
1140         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1141
1142         adapter->ahw.linkup = 0;
1143
1144         if (adapter->max_sds_rings > 1)
1145                 qlcnic_config_rss(adapter, 1);
1146
1147         qlcnic_config_intr_coalesce(adapter);
1148
1149         if (netdev->features & NETIF_F_LRO)
1150                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1151
1152         qlcnic_napi_enable(adapter);
1153
1154         qlcnic_linkevent_request(adapter, 1);
1155
1156         adapter->reset_context = 0;
1157         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1158         return 0;
1159 }
1160
1161 /* Usage: During resume and firmware recovery module.*/
1162
1163 static int
1164 qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1165 {
1166         int err = 0;
1167
1168         rtnl_lock();
1169         if (netif_running(netdev))
1170                 err = __qlcnic_up(adapter, netdev);
1171         rtnl_unlock();
1172
1173         return err;
1174 }
1175
1176 static void
1177 __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1178 {
1179         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1180                 return;
1181
1182         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1183                 return;
1184
1185         smp_mb();
1186         spin_lock(&adapter->tx_clean_lock);
1187         netif_carrier_off(netdev);
1188         netif_tx_disable(netdev);
1189
1190         qlcnic_free_mac_list(adapter);
1191
1192         if (adapter->fhash.fnum)
1193                 qlcnic_delete_lb_filters(adapter);
1194
1195         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1196
1197         qlcnic_napi_disable(adapter);
1198
1199         qlcnic_fw_destroy_ctx(adapter);
1200
1201         qlcnic_reset_rx_buffers_list(adapter);
1202         qlcnic_release_tx_buffers(adapter);
1203         spin_unlock(&adapter->tx_clean_lock);
1204 }
1205
1206 /* Usage: During suspend and firmware recovery module */
1207
1208 static void
1209 qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1210 {
1211         rtnl_lock();
1212         if (netif_running(netdev))
1213                 __qlcnic_down(adapter, netdev);
1214         rtnl_unlock();
1215
1216 }
1217
1218 static int
1219 qlcnic_attach(struct qlcnic_adapter *adapter)
1220 {
1221         struct net_device *netdev = adapter->netdev;
1222         struct pci_dev *pdev = adapter->pdev;
1223         int err;
1224
1225         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1226                 return 0;
1227
1228         err = qlcnic_napi_add(adapter, netdev);
1229         if (err)
1230                 return err;
1231
1232         err = qlcnic_alloc_sw_resources(adapter);
1233         if (err) {
1234                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1235                 goto err_out_napi_del;
1236         }
1237
1238         err = qlcnic_alloc_hw_resources(adapter);
1239         if (err) {
1240                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1241                 goto err_out_free_sw;
1242         }
1243
1244         err = qlcnic_request_irq(adapter);
1245         if (err) {
1246                 dev_err(&pdev->dev, "failed to setup interrupt\n");
1247                 goto err_out_free_hw;
1248         }
1249
1250         qlcnic_init_coalesce_defaults(adapter);
1251
1252         qlcnic_create_sysfs_entries(adapter);
1253
1254         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1255         return 0;
1256
1257 err_out_free_hw:
1258         qlcnic_free_hw_resources(adapter);
1259 err_out_free_sw:
1260         qlcnic_free_sw_resources(adapter);
1261 err_out_napi_del:
1262         qlcnic_napi_del(adapter);
1263         return err;
1264 }
1265
1266 static void
1267 qlcnic_detach(struct qlcnic_adapter *adapter)
1268 {
1269         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1270                 return;
1271
1272         qlcnic_remove_sysfs_entries(adapter);
1273
1274         qlcnic_free_hw_resources(adapter);
1275         qlcnic_release_rx_buffers(adapter);
1276         qlcnic_free_irq(adapter);
1277         qlcnic_napi_del(adapter);
1278         qlcnic_free_sw_resources(adapter);
1279
1280         adapter->is_up = 0;
1281 }
1282
1283 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1284 {
1285         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1286         struct qlcnic_host_sds_ring *sds_ring;
1287         int ring;
1288
1289         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1290         if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1291                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1292                         sds_ring = &adapter->recv_ctx.sds_rings[ring];
1293                         qlcnic_disable_int(sds_ring);
1294                 }
1295         }
1296
1297         qlcnic_fw_destroy_ctx(adapter);
1298
1299         qlcnic_detach(adapter);
1300
1301         adapter->diag_test = 0;
1302         adapter->max_sds_rings = max_sds_rings;
1303
1304         if (qlcnic_attach(adapter))
1305                 goto out;
1306
1307         if (netif_running(netdev))
1308                 __qlcnic_up(adapter, netdev);
1309 out:
1310         netif_device_attach(netdev);
1311 }
1312
1313 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1314 {
1315         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1316         struct qlcnic_host_sds_ring *sds_ring;
1317         struct qlcnic_host_rds_ring *rds_ring;
1318         int ring;
1319         int ret;
1320
1321         netif_device_detach(netdev);
1322
1323         if (netif_running(netdev))
1324                 __qlcnic_down(adapter, netdev);
1325
1326         qlcnic_detach(adapter);
1327
1328         adapter->max_sds_rings = 1;
1329         adapter->diag_test = test;
1330
1331         ret = qlcnic_attach(adapter);
1332         if (ret) {
1333                 netif_device_attach(netdev);
1334                 return ret;
1335         }
1336
1337         ret = qlcnic_fw_create_ctx(adapter);
1338         if (ret) {
1339                 qlcnic_detach(adapter);
1340                 netif_device_attach(netdev);
1341                 return ret;
1342         }
1343
1344         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1345                 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1346                 qlcnic_post_rx_buffers(adapter, ring, rds_ring);
1347         }
1348
1349         if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1350                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1351                         sds_ring = &adapter->recv_ctx.sds_rings[ring];
1352                         qlcnic_enable_int(sds_ring);
1353                 }
1354         }
1355         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1356
1357         return 0;
1358 }
1359
1360 /* Reset context in hardware only */
1361 static int
1362 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1363 {
1364         struct net_device *netdev = adapter->netdev;
1365
1366         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1367                 return -EBUSY;
1368
1369         netif_device_detach(netdev);
1370
1371         qlcnic_down(adapter, netdev);
1372
1373         qlcnic_up(adapter, netdev);
1374
1375         netif_device_attach(netdev);
1376
1377         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1378         return 0;
1379 }
1380
1381 int
1382 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1383 {
1384         int err = 0;
1385         struct net_device *netdev = adapter->netdev;
1386
1387         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1388                 return -EBUSY;
1389
1390         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1391
1392                 netif_device_detach(netdev);
1393
1394                 if (netif_running(netdev))
1395                         __qlcnic_down(adapter, netdev);
1396
1397                 qlcnic_detach(adapter);
1398
1399                 if (netif_running(netdev)) {
1400                         err = qlcnic_attach(adapter);
1401                         if (!err)
1402                                 __qlcnic_up(adapter, netdev);
1403                 }
1404
1405                 netif_device_attach(netdev);
1406         }
1407
1408         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1409         return err;
1410 }
1411
1412 static int
1413 qlcnic_setup_netdev(struct qlcnic_adapter *adapter,
1414                 struct net_device *netdev, u8 pci_using_dac)
1415 {
1416         int err;
1417         struct pci_dev *pdev = adapter->pdev;
1418
1419         adapter->rx_csum = 1;
1420         adapter->mc_enabled = 0;
1421         adapter->max_mc_count = 38;
1422
1423         netdev->netdev_ops         = &qlcnic_netdev_ops;
1424         netdev->watchdog_timeo     = 5*HZ;
1425
1426         qlcnic_change_mtu(netdev, netdev->mtu);
1427
1428         SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1429
1430         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1431                 NETIF_F_IPV6_CSUM | NETIF_F_GRO | NETIF_F_HW_VLAN_RX);
1432         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1433                 NETIF_F_IPV6_CSUM);
1434
1435         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO) {
1436                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
1437                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
1438         }
1439
1440         if (pci_using_dac) {
1441                 netdev->features |= NETIF_F_HIGHDMA;
1442                 netdev->vlan_features |= NETIF_F_HIGHDMA;
1443         }
1444
1445         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX)
1446                 netdev->features |= (NETIF_F_HW_VLAN_TX);
1447
1448         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1449                 netdev->features |= NETIF_F_LRO;
1450         netdev->irq = adapter->msix_entries[0].vector;
1451
1452         netif_carrier_off(netdev);
1453
1454         err = register_netdev(netdev);
1455         if (err) {
1456                 dev_err(&pdev->dev, "failed to register net device\n");
1457                 return err;
1458         }
1459
1460         return 0;
1461 }
1462
1463 static int qlcnic_set_dma_mask(struct pci_dev *pdev, u8 *pci_using_dac)
1464 {
1465         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1466                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1467                 *pci_using_dac = 1;
1468         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1469                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1470                 *pci_using_dac = 0;
1471         else {
1472                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1473                 return -EIO;
1474         }
1475
1476         return 0;
1477 }
1478
1479 static int __devinit
1480 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1481 {
1482         struct net_device *netdev = NULL;
1483         struct qlcnic_adapter *adapter = NULL;
1484         int err;
1485         uint8_t revision_id;
1486         uint8_t pci_using_dac;
1487         char brd_name[QLCNIC_MAX_BOARD_NAME_LEN];
1488
1489         err = pci_enable_device(pdev);
1490         if (err)
1491                 return err;
1492
1493         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1494                 err = -ENODEV;
1495                 goto err_out_disable_pdev;
1496         }
1497
1498         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
1499         if (err)
1500                 goto err_out_disable_pdev;
1501
1502         err = pci_request_regions(pdev, qlcnic_driver_name);
1503         if (err)
1504                 goto err_out_disable_pdev;
1505
1506         pci_set_master(pdev);
1507         pci_enable_pcie_error_reporting(pdev);
1508
1509         netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1510         if (!netdev) {
1511                 dev_err(&pdev->dev, "failed to allocate net_device\n");
1512                 err = -ENOMEM;
1513                 goto err_out_free_res;
1514         }
1515
1516         SET_NETDEV_DEV(netdev, &pdev->dev);
1517
1518         adapter = netdev_priv(netdev);
1519         adapter->netdev  = netdev;
1520         adapter->pdev    = pdev;
1521         adapter->dev_rst_time = jiffies;
1522
1523         revision_id = pdev->revision;
1524         adapter->ahw.revision_id = revision_id;
1525
1526         rwlock_init(&adapter->ahw.crb_lock);
1527         mutex_init(&adapter->ahw.mem_lock);
1528
1529         spin_lock_init(&adapter->tx_clean_lock);
1530         INIT_LIST_HEAD(&adapter->mac_list);
1531
1532         err = qlcnic_setup_pci_map(adapter);
1533         if (err)
1534                 goto err_out_free_netdev;
1535
1536         /* This will be reset for mezz cards  */
1537         adapter->portnum = adapter->ahw.pci_func;
1538
1539         err = qlcnic_get_board_info(adapter);
1540         if (err) {
1541                 dev_err(&pdev->dev, "Error getting board config info.\n");
1542                 goto err_out_iounmap;
1543         }
1544
1545         err = qlcnic_setup_idc_param(adapter);
1546         if (err)
1547                 goto err_out_iounmap;
1548
1549         err = adapter->nic_ops->start_firmware(adapter);
1550         if (err) {
1551                 dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
1552                 goto err_out_decr_ref;
1553         }
1554
1555         if (qlcnic_read_mac_addr(adapter))
1556                 dev_warn(&pdev->dev, "failed to read mac addr\n");
1557
1558         if (adapter->portnum == 0) {
1559                 get_brd_name(adapter, brd_name);
1560
1561                 pr_info("%s: %s Board Chip rev 0x%x\n",
1562                                 module_name(THIS_MODULE),
1563                                 brd_name, adapter->ahw.revision_id);
1564         }
1565
1566         qlcnic_clear_stats(adapter);
1567
1568         qlcnic_setup_intr(adapter);
1569
1570         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
1571         if (err)
1572                 goto err_out_disable_msi;
1573
1574         pci_set_drvdata(pdev, adapter);
1575
1576         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1577
1578         switch (adapter->ahw.port_type) {
1579         case QLCNIC_GBE:
1580                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1581                                 adapter->netdev->name);
1582                 break;
1583         case QLCNIC_XGBE:
1584                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1585                                 adapter->netdev->name);
1586                 break;
1587         }
1588
1589         qlcnic_alloc_lb_filters_mem(adapter);
1590         qlcnic_create_diag_entries(adapter);
1591
1592         return 0;
1593
1594 err_out_disable_msi:
1595         qlcnic_teardown_intr(adapter);
1596
1597 err_out_decr_ref:
1598         qlcnic_clr_all_drv_state(adapter, 0);
1599
1600 err_out_iounmap:
1601         qlcnic_cleanup_pci_map(adapter);
1602
1603 err_out_free_netdev:
1604         free_netdev(netdev);
1605
1606 err_out_free_res:
1607         pci_release_regions(pdev);
1608
1609 err_out_disable_pdev:
1610         pci_set_drvdata(pdev, NULL);
1611         pci_disable_device(pdev);
1612         return err;
1613 }
1614
1615 static void __devexit qlcnic_remove(struct pci_dev *pdev)
1616 {
1617         struct qlcnic_adapter *adapter;
1618         struct net_device *netdev;
1619
1620         adapter = pci_get_drvdata(pdev);
1621         if (adapter == NULL)
1622                 return;
1623
1624         netdev = adapter->netdev;
1625
1626         qlcnic_cancel_fw_work(adapter);
1627
1628         unregister_netdev(netdev);
1629
1630         qlcnic_detach(adapter);
1631
1632         if (adapter->npars != NULL)
1633                 kfree(adapter->npars);
1634         if (adapter->eswitch != NULL)
1635                 kfree(adapter->eswitch);
1636
1637         qlcnic_clr_all_drv_state(adapter, 0);
1638
1639         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1640
1641         qlcnic_free_lb_filters_mem(adapter);
1642
1643         qlcnic_teardown_intr(adapter);
1644
1645         qlcnic_remove_diag_entries(adapter);
1646
1647         qlcnic_cleanup_pci_map(adapter);
1648
1649         qlcnic_release_firmware(adapter);
1650
1651         pci_disable_pcie_error_reporting(pdev);
1652         pci_release_regions(pdev);
1653         pci_disable_device(pdev);
1654         pci_set_drvdata(pdev, NULL);
1655
1656         free_netdev(netdev);
1657 }
1658 static int __qlcnic_shutdown(struct pci_dev *pdev)
1659 {
1660         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1661         struct net_device *netdev = adapter->netdev;
1662         int retval;
1663
1664         netif_device_detach(netdev);
1665
1666         qlcnic_cancel_fw_work(adapter);
1667
1668         if (netif_running(netdev))
1669                 qlcnic_down(adapter, netdev);
1670
1671         qlcnic_clr_all_drv_state(adapter, 0);
1672
1673         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1674
1675         retval = pci_save_state(pdev);
1676         if (retval)
1677                 return retval;
1678
1679         if (qlcnic_wol_supported(adapter)) {
1680                 pci_enable_wake(pdev, PCI_D3cold, 1);
1681                 pci_enable_wake(pdev, PCI_D3hot, 1);
1682         }
1683
1684         return 0;
1685 }
1686
1687 static void qlcnic_shutdown(struct pci_dev *pdev)
1688 {
1689         if (__qlcnic_shutdown(pdev))
1690                 return;
1691
1692         pci_disable_device(pdev);
1693 }
1694
1695 #ifdef CONFIG_PM
1696 static int
1697 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
1698 {
1699         int retval;
1700
1701         retval = __qlcnic_shutdown(pdev);
1702         if (retval)
1703                 return retval;
1704
1705         pci_set_power_state(pdev, pci_choose_state(pdev, state));
1706         return 0;
1707 }
1708
1709 static int
1710 qlcnic_resume(struct pci_dev *pdev)
1711 {
1712         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1713         struct net_device *netdev = adapter->netdev;
1714         int err;
1715
1716         err = pci_enable_device(pdev);
1717         if (err)
1718                 return err;
1719
1720         pci_set_power_state(pdev, PCI_D0);
1721         pci_set_master(pdev);
1722         pci_restore_state(pdev);
1723
1724         err = adapter->nic_ops->start_firmware(adapter);
1725         if (err) {
1726                 dev_err(&pdev->dev, "failed to start firmware\n");
1727                 return err;
1728         }
1729
1730         if (netif_running(netdev)) {
1731                 err = qlcnic_up(adapter, netdev);
1732                 if (err)
1733                         goto done;
1734
1735                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1736         }
1737 done:
1738         netif_device_attach(netdev);
1739         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1740         return 0;
1741 }
1742 #endif
1743
1744 static int qlcnic_open(struct net_device *netdev)
1745 {
1746         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1747         int err;
1748
1749         err = qlcnic_attach(adapter);
1750         if (err)
1751                 return err;
1752
1753         err = __qlcnic_up(adapter, netdev);
1754         if (err)
1755                 goto err_out;
1756
1757         netif_start_queue(netdev);
1758
1759         return 0;
1760
1761 err_out:
1762         qlcnic_detach(adapter);
1763         return err;
1764 }
1765
1766 /*
1767  * qlcnic_close - Disables a network interface entry point
1768  */
1769 static int qlcnic_close(struct net_device *netdev)
1770 {
1771         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1772
1773         __qlcnic_down(adapter, netdev);
1774         return 0;
1775 }
1776
1777 static void
1778 qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
1779 {
1780         void *head;
1781         int i;
1782
1783         if (!qlcnic_mac_learn)
1784                 return;
1785
1786         spin_lock_init(&adapter->mac_learn_lock);
1787
1788         head = kcalloc(QLCNIC_LB_MAX_FILTERS, sizeof(struct hlist_head),
1789                                                                 GFP_KERNEL);
1790         if (!head)
1791                 return;
1792
1793         adapter->fhash.fmax = QLCNIC_LB_MAX_FILTERS;
1794         adapter->fhash.fhead = (struct hlist_head *)head;
1795
1796         for (i = 0; i < adapter->fhash.fmax; i++)
1797                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
1798 }
1799
1800 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
1801 {
1802         if (adapter->fhash.fmax && adapter->fhash.fhead)
1803                 kfree(adapter->fhash.fhead);
1804
1805         adapter->fhash.fhead = NULL;
1806         adapter->fhash.fmax = 0;
1807 }
1808
1809 static void qlcnic_change_filter(struct qlcnic_adapter *adapter,
1810                 u64 uaddr, __le16 vlan_id, struct qlcnic_host_tx_ring *tx_ring)
1811 {
1812         struct cmd_desc_type0 *hwdesc;
1813         struct qlcnic_nic_req *req;
1814         struct qlcnic_mac_req *mac_req;
1815         struct qlcnic_vlan_req *vlan_req;
1816         u32 producer;
1817         u64 word;
1818
1819         producer = tx_ring->producer;
1820         hwdesc = &tx_ring->desc_head[tx_ring->producer];
1821
1822         req = (struct qlcnic_nic_req *)hwdesc;
1823         memset(req, 0, sizeof(struct qlcnic_nic_req));
1824         req->qhdr = cpu_to_le64(QLCNIC_REQUEST << 23);
1825
1826         word = QLCNIC_MAC_EVENT | ((u64)(adapter->portnum) << 16);
1827         req->req_hdr = cpu_to_le64(word);
1828
1829         mac_req = (struct qlcnic_mac_req *)&(req->words[0]);
1830         mac_req->op = vlan_id ? QLCNIC_MAC_VLAN_ADD : QLCNIC_MAC_ADD;
1831         memcpy(mac_req->mac_addr, &uaddr, ETH_ALEN);
1832
1833         vlan_req = (struct qlcnic_vlan_req *)&req->words[1];
1834         vlan_req->vlan_id = vlan_id;
1835
1836         tx_ring->producer = get_next_index(producer, tx_ring->num_desc);
1837 }
1838
1839 #define QLCNIC_MAC_HASH(MAC)\
1840         ((((MAC) & 0x70000) >> 0x10) | (((MAC) & 0x70000000000ULL) >> 0x25))
1841
1842 static void
1843 qlcnic_send_filter(struct qlcnic_adapter *adapter,
1844                 struct qlcnic_host_tx_ring *tx_ring,
1845                 struct cmd_desc_type0 *first_desc,
1846                 struct sk_buff *skb)
1847 {
1848         struct ethhdr *phdr = (struct ethhdr *)(skb->data);
1849         struct qlcnic_filter *fil, *tmp_fil;
1850         struct hlist_node *tmp_hnode, *n;
1851         struct hlist_head *head;
1852         u64 src_addr = 0;
1853         __le16 vlan_id = 0;
1854         u8 hindex;
1855
1856         if (!compare_ether_addr(phdr->h_source, adapter->mac_addr))
1857                 return;
1858
1859         if (adapter->fhash.fnum >= adapter->fhash.fmax)
1860                 return;
1861
1862         /* Only NPAR capable devices support vlan based learning*/
1863         if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
1864                 vlan_id = first_desc->vlan_TCI;
1865         memcpy(&src_addr, phdr->h_source, ETH_ALEN);
1866         hindex = QLCNIC_MAC_HASH(src_addr) & (QLCNIC_LB_MAX_FILTERS - 1);
1867         head = &(adapter->fhash.fhead[hindex]);
1868
1869         hlist_for_each_entry_safe(tmp_fil, tmp_hnode, n, head, fnode) {
1870                 if (!memcmp(tmp_fil->faddr, &src_addr, ETH_ALEN) &&
1871                             tmp_fil->vlan_id == vlan_id) {
1872
1873                         if (jiffies >
1874                             (QLCNIC_READD_AGE * HZ + tmp_fil->ftime))
1875                                 qlcnic_change_filter(adapter, src_addr, vlan_id,
1876                                                                 tx_ring);
1877                         tmp_fil->ftime = jiffies;
1878                         return;
1879                 }
1880         }
1881
1882         fil = kzalloc(sizeof(struct qlcnic_filter), GFP_ATOMIC);
1883         if (!fil)
1884                 return;
1885
1886         qlcnic_change_filter(adapter, src_addr, vlan_id, tx_ring);
1887
1888         fil->ftime = jiffies;
1889         fil->vlan_id = vlan_id;
1890         memcpy(fil->faddr, &src_addr, ETH_ALEN);
1891         spin_lock(&adapter->mac_learn_lock);
1892         hlist_add_head(&(fil->fnode), head);
1893         adapter->fhash.fnum++;
1894         spin_unlock(&adapter->mac_learn_lock);
1895 }
1896
1897 static void
1898 qlcnic_tso_check(struct net_device *netdev,
1899                 struct qlcnic_host_tx_ring *tx_ring,
1900                 struct cmd_desc_type0 *first_desc,
1901                 struct sk_buff *skb)
1902 {
1903         u8 opcode = TX_ETHER_PKT;
1904         __be16 protocol = skb->protocol;
1905         u16 flags = 0;
1906         int copied, offset, copy_len, hdr_len = 0, tso = 0;
1907         struct cmd_desc_type0 *hwdesc;
1908         struct vlan_ethhdr *vh;
1909         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1910         u32 producer = tx_ring->producer;
1911         __le16 vlan_oob = first_desc->flags_opcode &
1912                                 cpu_to_le16(FLAGS_VLAN_OOB);
1913
1914         if (*(skb->data) & BIT_0) {
1915                 flags |= BIT_0;
1916                 memcpy(&first_desc->eth_addr, skb->data, ETH_ALEN);
1917         }
1918
1919         if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1920                         skb_shinfo(skb)->gso_size > 0) {
1921
1922                 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1923
1924                 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1925                 first_desc->total_hdr_length = hdr_len;
1926                 if (vlan_oob) {
1927                         first_desc->total_hdr_length += VLAN_HLEN;
1928                         first_desc->tcp_hdr_offset = VLAN_HLEN;
1929                         first_desc->ip_hdr_offset = VLAN_HLEN;
1930                         /* Only in case of TSO on vlan device */
1931                         flags |= FLAGS_VLAN_TAGGED;
1932                 }
1933
1934                 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1935                                 TX_TCP_LSO6 : TX_TCP_LSO;
1936                 tso = 1;
1937
1938         } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1939                 u8 l4proto;
1940
1941                 if (protocol == cpu_to_be16(ETH_P_IP)) {
1942                         l4proto = ip_hdr(skb)->protocol;
1943
1944                         if (l4proto == IPPROTO_TCP)
1945                                 opcode = TX_TCP_PKT;
1946                         else if (l4proto == IPPROTO_UDP)
1947                                 opcode = TX_UDP_PKT;
1948                 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1949                         l4proto = ipv6_hdr(skb)->nexthdr;
1950
1951                         if (l4proto == IPPROTO_TCP)
1952                                 opcode = TX_TCPV6_PKT;
1953                         else if (l4proto == IPPROTO_UDP)
1954                                 opcode = TX_UDPV6_PKT;
1955                 }
1956         }
1957
1958         first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1959         first_desc->ip_hdr_offset += skb_network_offset(skb);
1960         qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
1961
1962         if (!tso)
1963                 return;
1964
1965         /* For LSO, we need to copy the MAC/IP/TCP headers into
1966          * the descriptor ring
1967          */
1968         copied = 0;
1969         offset = 2;
1970
1971         if (vlan_oob) {
1972                 /* Create a TSO vlan header template for firmware */
1973
1974                 hwdesc = &tx_ring->desc_head[producer];
1975                 tx_ring->cmd_buf_arr[producer].skb = NULL;
1976
1977                 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1978                                 hdr_len + VLAN_HLEN);
1979
1980                 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1981                 skb_copy_from_linear_data(skb, vh, 12);
1982                 vh->h_vlan_proto = htons(ETH_P_8021Q);
1983                 vh->h_vlan_TCI = (__be16)swab16((u16)first_desc->vlan_TCI);
1984
1985                 skb_copy_from_linear_data_offset(skb, 12,
1986                                 (char *)vh + 16, copy_len - 16);
1987
1988                 copied = copy_len - VLAN_HLEN;
1989                 offset = 0;
1990
1991                 producer = get_next_index(producer, tx_ring->num_desc);
1992         }
1993
1994         while (copied < hdr_len) {
1995
1996                 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1997                                 (hdr_len - copied));
1998
1999                 hwdesc = &tx_ring->desc_head[producer];
2000                 tx_ring->cmd_buf_arr[producer].skb = NULL;
2001
2002                 skb_copy_from_linear_data_offset(skb, copied,
2003                                  (char *)hwdesc + offset, copy_len);
2004
2005                 copied += copy_len;
2006                 offset = 0;
2007
2008                 producer = get_next_index(producer, tx_ring->num_desc);
2009         }
2010
2011         tx_ring->producer = producer;
2012         barrier();
2013         adapter->stats.lso_frames++;
2014 }
2015
2016 static int
2017 qlcnic_map_tx_skb(struct pci_dev *pdev,
2018                 struct sk_buff *skb, struct qlcnic_cmd_buffer *pbuf)
2019 {
2020         struct qlcnic_skb_frag *nf;
2021         struct skb_frag_struct *frag;
2022         int i, nr_frags;
2023         dma_addr_t map;
2024
2025         nr_frags = skb_shinfo(skb)->nr_frags;
2026         nf = &pbuf->frag_array[0];
2027
2028         map = pci_map_single(pdev, skb->data,
2029                         skb_headlen(skb), PCI_DMA_TODEVICE);
2030         if (pci_dma_mapping_error(pdev, map))
2031                 goto out_err;
2032
2033         nf->dma = map;
2034         nf->length = skb_headlen(skb);
2035
2036         for (i = 0; i < nr_frags; i++) {
2037                 frag = &skb_shinfo(skb)->frags[i];
2038                 nf = &pbuf->frag_array[i+1];
2039
2040                 map = pci_map_page(pdev, frag->page, frag->page_offset,
2041                                 frag->size, PCI_DMA_TODEVICE);
2042                 if (pci_dma_mapping_error(pdev, map))
2043                         goto unwind;
2044
2045                 nf->dma = map;
2046                 nf->length = frag->size;
2047         }
2048
2049         return 0;
2050
2051 unwind:
2052         while (--i >= 0) {
2053                 nf = &pbuf->frag_array[i+1];
2054                 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
2055         }
2056
2057         nf = &pbuf->frag_array[0];
2058         pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
2059
2060 out_err:
2061         return -ENOMEM;
2062 }
2063
2064 static int
2065 qlcnic_check_tx_tagging(struct qlcnic_adapter *adapter,
2066                         struct sk_buff *skb,
2067                         struct cmd_desc_type0 *first_desc)
2068 {
2069         u8 opcode = 0;
2070         u16 flags = 0;
2071         __be16 protocol = skb->protocol;
2072         struct vlan_ethhdr *vh;
2073
2074         if (protocol == cpu_to_be16(ETH_P_8021Q)) {
2075                 vh = (struct vlan_ethhdr *)skb->data;
2076                 protocol = vh->h_vlan_encapsulated_proto;
2077                 flags = FLAGS_VLAN_TAGGED;
2078                 qlcnic_set_tx_vlan_tci(first_desc, ntohs(vh->h_vlan_TCI));
2079         } else if (vlan_tx_tag_present(skb)) {
2080                 flags = FLAGS_VLAN_OOB;
2081                 qlcnic_set_tx_vlan_tci(first_desc, vlan_tx_tag_get(skb));
2082         }
2083         if (unlikely(adapter->pvid)) {
2084                 if (first_desc->vlan_TCI &&
2085                                 !(adapter->flags & QLCNIC_TAGGING_ENABLED))
2086                         return -EIO;
2087                 if (first_desc->vlan_TCI &&
2088                                 (adapter->flags & QLCNIC_TAGGING_ENABLED))
2089                         goto set_flags;
2090
2091                 flags = FLAGS_VLAN_OOB;
2092                 qlcnic_set_tx_vlan_tci(first_desc, adapter->pvid);
2093         }
2094 set_flags:
2095         qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
2096         return 0;
2097 }
2098
2099 static inline void
2100 qlcnic_clear_cmddesc(u64 *desc)
2101 {
2102         desc[0] = 0ULL;
2103         desc[2] = 0ULL;
2104         desc[7] = 0ULL;
2105 }
2106
2107 netdev_tx_t
2108 qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
2109 {
2110         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2111         struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
2112         struct qlcnic_cmd_buffer *pbuf;
2113         struct qlcnic_skb_frag *buffrag;
2114         struct cmd_desc_type0 *hwdesc, *first_desc;
2115         struct pci_dev *pdev;
2116         struct ethhdr *phdr;
2117         int i, k;
2118
2119         u32 producer;
2120         int frag_count, no_of_desc;
2121         u32 num_txd = tx_ring->num_desc;
2122
2123         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
2124                 netif_stop_queue(netdev);
2125                 return NETDEV_TX_BUSY;
2126         }
2127
2128         if (adapter->flags & QLCNIC_MACSPOOF) {
2129                 phdr = (struct ethhdr *)skb->data;
2130                 if (compare_ether_addr(phdr->h_source,
2131                                         adapter->mac_addr))
2132                         goto drop_packet;
2133         }
2134
2135         frag_count = skb_shinfo(skb)->nr_frags + 1;
2136
2137         /* 4 fragments per cmd des */
2138         no_of_desc = (frag_count + 3) >> 2;
2139
2140         if (unlikely(qlcnic_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
2141                 netif_stop_queue(netdev);
2142                 smp_mb();
2143                 if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH)
2144                         netif_start_queue(netdev);
2145                 else {
2146                         adapter->stats.xmit_off++;
2147                         return NETDEV_TX_BUSY;
2148                 }
2149         }
2150
2151         producer = tx_ring->producer;
2152         pbuf = &tx_ring->cmd_buf_arr[producer];
2153
2154         pdev = adapter->pdev;
2155
2156         first_desc = hwdesc = &tx_ring->desc_head[producer];
2157         qlcnic_clear_cmddesc((u64 *)hwdesc);
2158
2159         if (qlcnic_check_tx_tagging(adapter, skb, first_desc))
2160                 goto drop_packet;
2161
2162         if (qlcnic_map_tx_skb(pdev, skb, pbuf)) {
2163                 adapter->stats.tx_dma_map_error++;
2164                 goto drop_packet;
2165         }
2166
2167         pbuf->skb = skb;
2168         pbuf->frag_count = frag_count;
2169
2170         qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len);
2171         qlcnic_set_tx_port(first_desc, adapter->portnum);
2172
2173         for (i = 0; i < frag_count; i++) {
2174
2175                 k = i % 4;
2176
2177                 if ((k == 0) && (i > 0)) {
2178                         /* move to next desc.*/
2179                         producer = get_next_index(producer, num_txd);
2180                         hwdesc = &tx_ring->desc_head[producer];
2181                         qlcnic_clear_cmddesc((u64 *)hwdesc);
2182                         tx_ring->cmd_buf_arr[producer].skb = NULL;
2183                 }
2184
2185                 buffrag = &pbuf->frag_array[i];
2186
2187                 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
2188                 switch (k) {
2189                 case 0:
2190                         hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
2191                         break;
2192                 case 1:
2193                         hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
2194                         break;
2195                 case 2:
2196                         hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
2197                         break;
2198                 case 3:
2199                         hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
2200                         break;
2201                 }
2202         }
2203
2204         tx_ring->producer = get_next_index(producer, num_txd);
2205
2206         qlcnic_tso_check(netdev, tx_ring, first_desc, skb);
2207
2208         if (qlcnic_mac_learn)
2209                 qlcnic_send_filter(adapter, tx_ring, first_desc, skb);
2210
2211         qlcnic_update_cmd_producer(adapter, tx_ring);
2212
2213         adapter->stats.txbytes += skb->len;
2214         adapter->stats.xmitcalled++;
2215
2216         return NETDEV_TX_OK;
2217
2218 drop_packet:
2219         adapter->stats.txdropped++;
2220         dev_kfree_skb_any(skb);
2221         return NETDEV_TX_OK;
2222 }
2223
2224 static int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2225 {
2226         struct net_device *netdev = adapter->netdev;
2227         u32 temp, temp_state, temp_val;
2228         int rv = 0;
2229
2230         temp = QLCRD32(adapter, CRB_TEMP_STATE);
2231
2232         temp_state = qlcnic_get_temp_state(temp);
2233         temp_val = qlcnic_get_temp_val(temp);
2234
2235         if (temp_state == QLCNIC_TEMP_PANIC) {
2236                 dev_err(&netdev->dev,
2237                        "Device temperature %d degrees C exceeds"
2238                        " maximum allowed. Hardware has been shut down.\n",
2239                        temp_val);
2240                 rv = 1;
2241         } else if (temp_state == QLCNIC_TEMP_WARN) {
2242                 if (adapter->temp == QLCNIC_TEMP_NORMAL) {
2243                         dev_err(&netdev->dev,
2244                                "Device temperature %d degrees C "
2245                                "exceeds operating range."
2246                                " Immediate action needed.\n",
2247                                temp_val);
2248                 }
2249         } else {
2250                 if (adapter->temp == QLCNIC_TEMP_WARN) {
2251                         dev_info(&netdev->dev,
2252                                "Device temperature is now %d degrees C"
2253                                " in normal range.\n", temp_val);
2254                 }
2255         }
2256         adapter->temp = temp_state;
2257         return rv;
2258 }
2259
2260 void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup)
2261 {
2262         struct net_device *netdev = adapter->netdev;
2263
2264         if (adapter->ahw.linkup && !linkup) {
2265                 netdev_info(netdev, "NIC Link is down\n");
2266                 adapter->ahw.linkup = 0;
2267                 if (netif_running(netdev)) {
2268                         netif_carrier_off(netdev);
2269                         netif_stop_queue(netdev);
2270                 }
2271         } else if (!adapter->ahw.linkup && linkup) {
2272                 netdev_info(netdev, "NIC Link is up\n");
2273                 adapter->ahw.linkup = 1;
2274                 if (netif_running(netdev)) {
2275                         netif_carrier_on(netdev);
2276                         netif_wake_queue(netdev);
2277                 }
2278         }
2279 }
2280
2281 static void qlcnic_tx_timeout(struct net_device *netdev)
2282 {
2283         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2284
2285         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2286                 return;
2287
2288         dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2289
2290         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
2291                 adapter->need_fw_reset = 1;
2292         else
2293                 adapter->reset_context = 1;
2294 }
2295
2296 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2297 {
2298         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2299         struct net_device_stats *stats = &netdev->stats;
2300
2301         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2302         stats->tx_packets = adapter->stats.xmitfinished;
2303         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2304         stats->tx_bytes = adapter->stats.txbytes;
2305         stats->rx_dropped = adapter->stats.rxdropped;
2306         stats->tx_dropped = adapter->stats.txdropped;
2307
2308         return stats;
2309 }
2310
2311 static irqreturn_t qlcnic_clear_legacy_intr(struct qlcnic_adapter *adapter)
2312 {
2313         u32 status;
2314
2315         status = readl(adapter->isr_int_vec);
2316
2317         if (!(status & adapter->int_vec_bit))
2318                 return IRQ_NONE;
2319
2320         /* check interrupt state machine, to be sure */
2321         status = readl(adapter->crb_int_state_reg);
2322         if (!ISR_LEGACY_INT_TRIGGERED(status))
2323                 return IRQ_NONE;
2324
2325         writel(0xffffffff, adapter->tgt_status_reg);
2326         /* read twice to ensure write is flushed */
2327         readl(adapter->isr_int_vec);
2328         readl(adapter->isr_int_vec);
2329
2330         return IRQ_HANDLED;
2331 }
2332
2333 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2334 {
2335         struct qlcnic_host_sds_ring *sds_ring = data;
2336         struct qlcnic_adapter *adapter = sds_ring->adapter;
2337
2338         if (adapter->flags & QLCNIC_MSIX_ENABLED)
2339                 goto done;
2340         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2341                 writel(0xffffffff, adapter->tgt_status_reg);
2342                 goto done;
2343         }
2344
2345         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2346                 return IRQ_NONE;
2347
2348 done:
2349         adapter->diag_cnt++;
2350         qlcnic_enable_int(sds_ring);
2351         return IRQ_HANDLED;
2352 }
2353
2354 static irqreturn_t qlcnic_intr(int irq, void *data)
2355 {
2356         struct qlcnic_host_sds_ring *sds_ring = data;
2357         struct qlcnic_adapter *adapter = sds_ring->adapter;
2358
2359         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2360                 return IRQ_NONE;
2361
2362         napi_schedule(&sds_ring->napi);
2363
2364         return IRQ_HANDLED;
2365 }
2366
2367 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2368 {
2369         struct qlcnic_host_sds_ring *sds_ring = data;
2370         struct qlcnic_adapter *adapter = sds_ring->adapter;
2371
2372         /* clear interrupt */
2373         writel(0xffffffff, adapter->tgt_status_reg);
2374
2375         napi_schedule(&sds_ring->napi);
2376         return IRQ_HANDLED;
2377 }
2378
2379 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2380 {
2381         struct qlcnic_host_sds_ring *sds_ring = data;
2382
2383         napi_schedule(&sds_ring->napi);
2384         return IRQ_HANDLED;
2385 }
2386
2387 static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter)
2388 {
2389         u32 sw_consumer, hw_consumer;
2390         int count = 0, i;
2391         struct qlcnic_cmd_buffer *buffer;
2392         struct pci_dev *pdev = adapter->pdev;
2393         struct net_device *netdev = adapter->netdev;
2394         struct qlcnic_skb_frag *frag;
2395         int done;
2396         struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
2397
2398         if (!spin_trylock(&adapter->tx_clean_lock))
2399                 return 1;
2400
2401         sw_consumer = tx_ring->sw_consumer;
2402         hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
2403
2404         while (sw_consumer != hw_consumer) {
2405                 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
2406                 if (buffer->skb) {
2407                         frag = &buffer->frag_array[0];
2408                         pci_unmap_single(pdev, frag->dma, frag->length,
2409                                          PCI_DMA_TODEVICE);
2410                         frag->dma = 0ULL;
2411                         for (i = 1; i < buffer->frag_count; i++) {
2412                                 frag++;
2413                                 pci_unmap_page(pdev, frag->dma, frag->length,
2414                                                PCI_DMA_TODEVICE);
2415                                 frag->dma = 0ULL;
2416                         }
2417
2418                         adapter->stats.xmitfinished++;
2419                         dev_kfree_skb_any(buffer->skb);
2420                         buffer->skb = NULL;
2421                 }
2422
2423                 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
2424                 if (++count >= MAX_STATUS_HANDLE)
2425                         break;
2426         }
2427
2428         if (count && netif_running(netdev)) {
2429                 tx_ring->sw_consumer = sw_consumer;
2430
2431                 smp_mb();
2432
2433                 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
2434                         if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) {
2435                                 netif_wake_queue(netdev);
2436                                 adapter->stats.xmit_on++;
2437                         }
2438                 }
2439                 adapter->tx_timeo_cnt = 0;
2440         }
2441         /*
2442          * If everything is freed up to consumer then check if the ring is full
2443          * If the ring is full then check if more needs to be freed and
2444          * schedule the call back again.
2445          *
2446          * This happens when there are 2 CPUs. One could be freeing and the
2447          * other filling it. If the ring is full when we get out of here and
2448          * the card has already interrupted the host then the host can miss the
2449          * interrupt.
2450          *
2451          * There is still a possible race condition and the host could miss an
2452          * interrupt. The card has to take care of this.
2453          */
2454         hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
2455         done = (sw_consumer == hw_consumer);
2456         spin_unlock(&adapter->tx_clean_lock);
2457
2458         return done;
2459 }
2460
2461 static int qlcnic_poll(struct napi_struct *napi, int budget)
2462 {
2463         struct qlcnic_host_sds_ring *sds_ring =
2464                 container_of(napi, struct qlcnic_host_sds_ring, napi);
2465
2466         struct qlcnic_adapter *adapter = sds_ring->adapter;
2467
2468         int tx_complete;
2469         int work_done;
2470
2471         tx_complete = qlcnic_process_cmd_ring(adapter);
2472
2473         work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2474
2475         if ((work_done < budget) && tx_complete) {
2476                 napi_complete(&sds_ring->napi);
2477                 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2478                         qlcnic_enable_int(sds_ring);
2479         }
2480
2481         return work_done;
2482 }
2483
2484 static int qlcnic_rx_poll(struct napi_struct *napi, int budget)
2485 {
2486         struct qlcnic_host_sds_ring *sds_ring =
2487                 container_of(napi, struct qlcnic_host_sds_ring, napi);
2488
2489         struct qlcnic_adapter *adapter = sds_ring->adapter;
2490         int work_done;
2491
2492         work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2493
2494         if (work_done < budget) {
2495                 napi_complete(&sds_ring->napi);
2496                 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2497                         qlcnic_enable_int(sds_ring);
2498         }
2499
2500         return work_done;
2501 }
2502
2503 #ifdef CONFIG_NET_POLL_CONTROLLER
2504 static void qlcnic_poll_controller(struct net_device *netdev)
2505 {
2506         int ring;
2507         struct qlcnic_host_sds_ring *sds_ring;
2508         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2509         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
2510
2511         disable_irq(adapter->irq);
2512         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2513                 sds_ring = &recv_ctx->sds_rings[ring];
2514                 qlcnic_intr(adapter->irq, sds_ring);
2515         }
2516         enable_irq(adapter->irq);
2517 }
2518 #endif
2519
2520 static void
2521 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2522 {
2523         u32 val;
2524
2525         val = adapter->portnum & 0xf;
2526         val |= encoding << 7;
2527         val |= (jiffies - adapter->dev_rst_time) << 8;
2528
2529         QLCWR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2530         adapter->dev_rst_time = jiffies;
2531 }
2532
2533 static int
2534 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2535 {
2536         u32  val;
2537
2538         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2539                         state != QLCNIC_DEV_NEED_QUISCENT);
2540
2541         if (qlcnic_api_lock(adapter))
2542                 return -EIO;
2543
2544         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2545
2546         if (state == QLCNIC_DEV_NEED_RESET)
2547                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2548         else if (state == QLCNIC_DEV_NEED_QUISCENT)
2549                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2550
2551         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2552
2553         qlcnic_api_unlock(adapter);
2554
2555         return 0;
2556 }
2557
2558 static int
2559 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2560 {
2561         u32  val;
2562
2563         if (qlcnic_api_lock(adapter))
2564                 return -EBUSY;
2565
2566         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2567         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2568         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2569
2570         qlcnic_api_unlock(adapter);
2571
2572         return 0;
2573 }
2574
2575 static void
2576 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2577 {
2578         u32  val;
2579
2580         if (qlcnic_api_lock(adapter))
2581                 goto err;
2582
2583         val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2584         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2585         QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2586
2587         if (failed) {
2588                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
2589                 dev_info(&adapter->pdev->dev,
2590                                 "Device state set to Failed. Please Reboot\n");
2591         } else if (!(val & 0x11111111))
2592                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_COLD);
2593
2594         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2595         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2596         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2597
2598         qlcnic_api_unlock(adapter);
2599 err:
2600         adapter->fw_fail_cnt = 0;
2601         clear_bit(__QLCNIC_START_FW, &adapter->state);
2602         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2603 }
2604
2605 /* Grab api lock, before checking state */
2606 static int
2607 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2608 {
2609         int act, state;
2610
2611         state = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2612         act = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2613
2614         if (((state & 0x11111111) == (act & 0x11111111)) ||
2615                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2616                 return 0;
2617         else
2618                 return 1;
2619 }
2620
2621 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2622 {
2623         u32 val = QLCRD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2624
2625         if (val != QLCNIC_DRV_IDC_VER) {
2626                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2627                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2628         }
2629
2630         return 0;
2631 }
2632
2633 static int
2634 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2635 {
2636         u32 val, prev_state;
2637         u8 dev_init_timeo = adapter->dev_init_timeo;
2638         u8 portnum = adapter->portnum;
2639         u8 ret;
2640
2641         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2642                 return 1;
2643
2644         if (qlcnic_api_lock(adapter))
2645                 return -1;
2646
2647         val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2648         if (!(val & (1 << (portnum * 4)))) {
2649                 QLC_DEV_SET_REF_CNT(val, portnum);
2650                 QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2651         }
2652
2653         prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2654         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2655
2656         switch (prev_state) {
2657         case QLCNIC_DEV_COLD:
2658                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
2659                 QLCWR32(adapter, QLCNIC_CRB_DRV_IDC_VER, QLCNIC_DRV_IDC_VER);
2660                 qlcnic_idc_debug_info(adapter, 0);
2661                 qlcnic_api_unlock(adapter);
2662                 return 1;
2663
2664         case QLCNIC_DEV_READY:
2665                 ret = qlcnic_check_idc_ver(adapter);
2666                 qlcnic_api_unlock(adapter);
2667                 return ret;
2668
2669         case QLCNIC_DEV_NEED_RESET:
2670                 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2671                 QLC_DEV_SET_RST_RDY(val, portnum);
2672                 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2673                 break;
2674
2675         case QLCNIC_DEV_NEED_QUISCENT:
2676                 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2677                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
2678                 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2679                 break;
2680
2681         case QLCNIC_DEV_FAILED:
2682                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
2683                 qlcnic_api_unlock(adapter);
2684                 return -1;
2685
2686         case QLCNIC_DEV_INITIALIZING:
2687         case QLCNIC_DEV_QUISCENT:
2688                 break;
2689         }
2690
2691         qlcnic_api_unlock(adapter);
2692
2693         do {
2694                 msleep(1000);
2695                 prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2696
2697                 if (prev_state == QLCNIC_DEV_QUISCENT)
2698                         continue;
2699         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
2700
2701         if (!dev_init_timeo) {
2702                 dev_err(&adapter->pdev->dev,
2703                         "Waiting for device to initialize timeout\n");
2704                 return -1;
2705         }
2706
2707         if (qlcnic_api_lock(adapter))
2708                 return -1;
2709
2710         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2711         QLC_DEV_CLR_RST_QSCNT(val, portnum);
2712         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2713
2714         ret = qlcnic_check_idc_ver(adapter);
2715         qlcnic_api_unlock(adapter);
2716
2717         return ret;
2718 }
2719
2720 static void
2721 qlcnic_fwinit_work(struct work_struct *work)
2722 {
2723         struct qlcnic_adapter *adapter = container_of(work,
2724                         struct qlcnic_adapter, fw_work.work);
2725         u32 dev_state = 0xf;
2726
2727         if (qlcnic_api_lock(adapter))
2728                 goto err_ret;
2729
2730         dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2731         if (dev_state == QLCNIC_DEV_QUISCENT ||
2732             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2733                 qlcnic_api_unlock(adapter);
2734                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2735                                                 FW_POLL_DELAY * 2);
2736                 return;
2737         }
2738
2739         if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC) {
2740                 qlcnic_api_unlock(adapter);
2741                 goto wait_npar;
2742         }
2743
2744         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2745                 dev_err(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2746                                         adapter->reset_ack_timeo);
2747                 goto skip_ack_check;
2748         }
2749
2750         if (!qlcnic_check_drv_state(adapter)) {
2751 skip_ack_check:
2752                 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2753
2754                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2755                         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE,
2756                                                 QLCNIC_DEV_INITIALIZING);
2757                         set_bit(__QLCNIC_START_FW, &adapter->state);
2758                         QLCDB(adapter, DRV, "Restarting fw\n");
2759                         qlcnic_idc_debug_info(adapter, 0);
2760                 }
2761
2762                 qlcnic_api_unlock(adapter);
2763
2764                 if (!adapter->nic_ops->start_firmware(adapter)) {
2765                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2766                         adapter->fw_wait_cnt = 0;
2767                         return;
2768                 }
2769                 goto err_ret;
2770         }
2771
2772         qlcnic_api_unlock(adapter);
2773
2774 wait_npar:
2775         dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2776         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
2777
2778         switch (dev_state) {
2779         case QLCNIC_DEV_READY:
2780                 if (!adapter->nic_ops->start_firmware(adapter)) {
2781                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2782                         adapter->fw_wait_cnt = 0;
2783                         return;
2784                 }
2785         case QLCNIC_DEV_FAILED:
2786                 break;
2787         default:
2788                 qlcnic_schedule_work(adapter,
2789                         qlcnic_fwinit_work, FW_POLL_DELAY);
2790                 return;
2791         }
2792
2793 err_ret:
2794         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2795                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
2796         netif_device_attach(adapter->netdev);
2797         qlcnic_clr_all_drv_state(adapter, 0);
2798 }
2799
2800 static void
2801 qlcnic_detach_work(struct work_struct *work)
2802 {
2803         struct qlcnic_adapter *adapter = container_of(work,
2804                         struct qlcnic_adapter, fw_work.work);
2805         struct net_device *netdev = adapter->netdev;
2806         u32 status;
2807
2808         netif_device_detach(netdev);
2809
2810         /* Dont grab rtnl lock during Quiscent mode */
2811         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2812                 if (netif_running(netdev))
2813                         __qlcnic_down(adapter, netdev);
2814         } else
2815                 qlcnic_down(adapter, netdev);
2816
2817         status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2818
2819         if (status & QLCNIC_RCODE_FATAL_ERROR)
2820                 goto err_ret;
2821
2822         if (adapter->temp == QLCNIC_TEMP_PANIC)
2823                 goto err_ret;
2824
2825         if (qlcnic_set_drv_state(adapter, adapter->dev_state))
2826                 goto err_ret;
2827
2828         adapter->fw_wait_cnt = 0;
2829
2830         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2831
2832         return;
2833
2834 err_ret:
2835         dev_err(&adapter->pdev->dev, "detach failed; status=%d temp=%d\n",
2836                         status, adapter->temp);
2837         netif_device_attach(netdev);
2838         qlcnic_clr_all_drv_state(adapter, 1);
2839 }
2840
2841 /*Transit NPAR state to NON Operational */
2842 static void
2843 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
2844 {
2845         u32 state;
2846
2847         state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2848         if (state == QLCNIC_DEV_NPAR_NON_OPER)
2849                 return;
2850
2851         if (qlcnic_api_lock(adapter))
2852                 return;
2853         QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
2854         qlcnic_api_unlock(adapter);
2855 }
2856
2857 /* Caller should held RESETTING bit.
2858  * This should be call in sync with qlcnic_request_quiscent_mode.
2859  */
2860 void qlcnic_clear_quiscent_mode(struct qlcnic_adapter *adapter)
2861 {
2862         qlcnic_clr_drv_state(adapter);
2863         qlcnic_api_lock(adapter);
2864         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
2865         qlcnic_api_unlock(adapter);
2866 }
2867
2868 /* Caller should held RESETTING bit.
2869  */
2870 int qlcnic_request_quiscent_mode(struct qlcnic_adapter *adapter)
2871 {
2872         u8 timeo = adapter->dev_init_timeo / 2;
2873         u32 state;
2874
2875         if (qlcnic_api_lock(adapter))
2876                 return -EIO;
2877
2878         state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2879         if (state != QLCNIC_DEV_READY)
2880                 return -EIO;
2881
2882         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_QUISCENT);
2883         qlcnic_api_unlock(adapter);
2884         QLCDB(adapter, DRV, "NEED QUISCENT state set\n");
2885         qlcnic_idc_debug_info(adapter, 0);
2886
2887         qlcnic_set_drv_state(adapter, QLCNIC_DEV_NEED_QUISCENT);
2888
2889         do {
2890                 msleep(2000);
2891                 state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2892                 if (state == QLCNIC_DEV_QUISCENT)
2893                         return 0;
2894                 if (!qlcnic_check_drv_state(adapter)) {
2895                         if (qlcnic_api_lock(adapter))
2896                                 return -EIO;
2897                         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE,
2898                                                         QLCNIC_DEV_QUISCENT);
2899                         qlcnic_api_unlock(adapter);
2900                         QLCDB(adapter, DRV, "QUISCENT mode set\n");
2901                         return 0;
2902                 }
2903         } while (--timeo);
2904
2905         dev_err(&adapter->pdev->dev, "Failed to quiesce device, DRV_STATE=%08x"
2906                 " DRV_ACTIVE=%08x\n", QLCRD32(adapter, QLCNIC_CRB_DRV_STATE),
2907                 QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE));
2908         qlcnic_clear_quiscent_mode(adapter);
2909         return -EIO;
2910 }
2911
2912 /*Transit to RESET state from READY state only */
2913 static void
2914 qlcnic_dev_request_reset(struct qlcnic_adapter *adapter)
2915 {
2916         u32 state;
2917
2918         adapter->need_fw_reset = 1;
2919         if (qlcnic_api_lock(adapter))
2920                 return;
2921
2922         state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2923
2924         if (state == QLCNIC_DEV_READY) {
2925                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_RESET);
2926                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
2927                 qlcnic_idc_debug_info(adapter, 0);
2928         }
2929
2930         QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
2931         qlcnic_api_unlock(adapter);
2932 }
2933
2934 /* Transit to NPAR READY state from NPAR NOT READY state */
2935 static void
2936 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
2937 {
2938         if (qlcnic_api_lock(adapter))
2939                 return;
2940
2941         QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_OPER);
2942         QLCDB(adapter, DRV, "NPAR operational state set\n");
2943
2944         qlcnic_api_unlock(adapter);
2945 }
2946
2947 static void
2948 qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2949                 work_func_t func, int delay)
2950 {
2951         if (test_bit(__QLCNIC_AER, &adapter->state))
2952                 return;
2953
2954         INIT_DELAYED_WORK(&adapter->fw_work, func);
2955         queue_delayed_work(qlcnic_wq, &adapter->fw_work,
2956                                         round_jiffies_relative(delay));
2957 }
2958
2959 static void
2960 qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter)
2961 {
2962         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2963                 msleep(10);
2964
2965         cancel_delayed_work_sync(&adapter->fw_work);
2966 }
2967
2968 static void
2969 qlcnic_attach_work(struct work_struct *work)
2970 {
2971         struct qlcnic_adapter *adapter = container_of(work,
2972                                 struct qlcnic_adapter, fw_work.work);
2973         struct net_device *netdev = adapter->netdev;
2974         u32 npar_state;
2975
2976         if (adapter->op_mode != QLCNIC_MGMT_FUNC) {
2977                 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2978                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
2979                         qlcnic_clr_all_drv_state(adapter, 0);
2980                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
2981                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
2982                                                         FW_POLL_DELAY);
2983                 else
2984                         goto attach;
2985                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
2986                 return;
2987         }
2988 attach:
2989         if (netif_running(netdev)) {
2990                 if (qlcnic_up(adapter, netdev))
2991                         goto done;
2992
2993                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2994         }
2995
2996 done:
2997         netif_device_attach(netdev);
2998         adapter->fw_fail_cnt = 0;
2999         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3000
3001         if (!qlcnic_clr_drv_state(adapter))
3002                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3003                                                         FW_POLL_DELAY);
3004 }
3005
3006 static int
3007 qlcnic_check_health(struct qlcnic_adapter *adapter)
3008 {
3009         u32 state = 0, heartbeat;
3010         struct net_device *netdev = adapter->netdev;
3011
3012         if (qlcnic_check_temp(adapter))
3013                 goto detach;
3014
3015         if (adapter->need_fw_reset)
3016                 qlcnic_dev_request_reset(adapter);
3017
3018         state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
3019         if (state == QLCNIC_DEV_NEED_RESET) {
3020                 qlcnic_set_npar_non_operational(adapter);
3021                 adapter->need_fw_reset = 1;
3022         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3023                 goto detach;
3024
3025         heartbeat = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3026         if (heartbeat != adapter->heartbeat) {
3027                 adapter->heartbeat = heartbeat;
3028                 adapter->fw_fail_cnt = 0;
3029                 if (adapter->need_fw_reset)
3030                         goto detach;
3031
3032                 if (adapter->reset_context &&
3033                     auto_fw_reset == AUTO_FW_RESET_ENABLED) {
3034                         qlcnic_reset_hw_context(adapter);
3035                         adapter->netdev->trans_start = jiffies;
3036                 }
3037
3038                 return 0;
3039         }
3040
3041         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3042                 return 0;
3043
3044         qlcnic_dev_request_reset(adapter);
3045
3046         if ((auto_fw_reset == AUTO_FW_RESET_ENABLED))
3047                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3048
3049         dev_info(&netdev->dev, "firmware hang detected\n");
3050
3051 detach:
3052         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3053                 QLCNIC_DEV_NEED_RESET;
3054
3055         if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
3056                 !test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) {
3057
3058                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3059                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3060         }
3061
3062         return 1;
3063 }
3064
3065 static void
3066 qlcnic_fw_poll_work(struct work_struct *work)
3067 {
3068         struct qlcnic_adapter *adapter = container_of(work,
3069                                 struct qlcnic_adapter, fw_work.work);
3070
3071         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3072                 goto reschedule;
3073
3074
3075         if (qlcnic_check_health(adapter))
3076                 return;
3077
3078         if (adapter->fhash.fnum)
3079                 qlcnic_prune_lb_filters(adapter);
3080
3081 reschedule:
3082         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3083 }
3084
3085 static int qlcnic_is_first_func(struct pci_dev *pdev)
3086 {
3087         struct pci_dev *oth_pdev;
3088         int val = pdev->devfn;
3089
3090         while (val-- > 0) {
3091                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3092                         (pdev->bus), pdev->bus->number,
3093                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3094                 if (!oth_pdev)
3095                         continue;
3096
3097                 if (oth_pdev->current_state != PCI_D3cold) {
3098                         pci_dev_put(oth_pdev);
3099                         return 0;
3100                 }
3101                 pci_dev_put(oth_pdev);
3102         }
3103         return 1;
3104 }
3105
3106 static int qlcnic_attach_func(struct pci_dev *pdev)
3107 {
3108         int err, first_func;
3109         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3110         struct net_device *netdev = adapter->netdev;
3111
3112         pdev->error_state = pci_channel_io_normal;
3113
3114         err = pci_enable_device(pdev);
3115         if (err)
3116                 return err;
3117
3118         pci_set_power_state(pdev, PCI_D0);
3119         pci_set_master(pdev);
3120         pci_restore_state(pdev);
3121
3122         first_func = qlcnic_is_first_func(pdev);
3123
3124         if (qlcnic_api_lock(adapter))
3125                 return -EINVAL;
3126
3127         if (adapter->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3128                 adapter->need_fw_reset = 1;
3129                 set_bit(__QLCNIC_START_FW, &adapter->state);
3130                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
3131                 QLCDB(adapter, DRV, "Restarting fw\n");
3132         }
3133         qlcnic_api_unlock(adapter);
3134
3135         err = adapter->nic_ops->start_firmware(adapter);
3136         if (err)
3137                 return err;
3138
3139         qlcnic_clr_drv_state(adapter);
3140         qlcnic_setup_intr(adapter);
3141
3142         if (netif_running(netdev)) {
3143                 err = qlcnic_attach(adapter);
3144                 if (err) {
3145                         qlcnic_clr_all_drv_state(adapter, 1);
3146                         clear_bit(__QLCNIC_AER, &adapter->state);
3147                         netif_device_attach(netdev);
3148                         return err;
3149                 }
3150
3151                 err = qlcnic_up(adapter, netdev);
3152                 if (err)
3153                         goto done;
3154
3155                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3156         }
3157  done:
3158         netif_device_attach(netdev);
3159         return err;
3160 }
3161
3162 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3163                                                 pci_channel_state_t state)
3164 {
3165         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3166         struct net_device *netdev = adapter->netdev;
3167
3168         if (state == pci_channel_io_perm_failure)
3169                 return PCI_ERS_RESULT_DISCONNECT;
3170
3171         if (state == pci_channel_io_normal)
3172                 return PCI_ERS_RESULT_RECOVERED;
3173
3174         set_bit(__QLCNIC_AER, &adapter->state);
3175         netif_device_detach(netdev);
3176
3177         cancel_delayed_work_sync(&adapter->fw_work);
3178
3179         if (netif_running(netdev))
3180                 qlcnic_down(adapter, netdev);
3181
3182         qlcnic_detach(adapter);
3183         qlcnic_teardown_intr(adapter);
3184
3185         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3186
3187         pci_save_state(pdev);
3188         pci_disable_device(pdev);
3189
3190         return PCI_ERS_RESULT_NEED_RESET;
3191 }
3192
3193 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3194 {
3195         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3196                                 PCI_ERS_RESULT_RECOVERED;
3197 }
3198
3199 static void qlcnic_io_resume(struct pci_dev *pdev)
3200 {
3201         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3202
3203         pci_cleanup_aer_uncorrect_error_status(pdev);
3204
3205         if (QLCRD32(adapter, QLCNIC_CRB_DEV_STATE) == QLCNIC_DEV_READY &&
3206             test_and_clear_bit(__QLCNIC_AER, &adapter->state))
3207                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3208                                                 FW_POLL_DELAY);
3209 }
3210
3211 static int
3212 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3213 {
3214         int err;
3215
3216         err = qlcnic_can_start_firmware(adapter);
3217         if (err)
3218                 return err;
3219
3220         err = qlcnic_check_npar_opertional(adapter);
3221         if (err)
3222                 return err;
3223
3224         err = qlcnic_initialize_nic(adapter);
3225         if (err)
3226                 return err;
3227
3228         qlcnic_check_options(adapter);
3229
3230         err = qlcnic_set_eswitch_port_config(adapter);
3231         if (err)
3232                 return err;
3233
3234         adapter->need_fw_reset = 0;
3235
3236         return err;
3237 }
3238
3239 static int
3240 qlcnicvf_config_bridged_mode(struct qlcnic_adapter *adapter, u32 enable)
3241 {
3242         return -EOPNOTSUPP;
3243 }
3244
3245 static int
3246 qlcnicvf_config_led(struct qlcnic_adapter *adapter, u32 state, u32 rate)
3247 {
3248         return -EOPNOTSUPP;
3249 }
3250
3251 static ssize_t
3252 qlcnic_store_bridged_mode(struct device *dev,
3253                 struct device_attribute *attr, const char *buf, size_t len)
3254 {
3255         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3256         unsigned long new;
3257         int ret = -EINVAL;
3258
3259         if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG))
3260                 goto err_out;
3261
3262         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3263                 goto err_out;
3264
3265         if (strict_strtoul(buf, 2, &new))
3266                 goto err_out;
3267
3268         if (!adapter->nic_ops->config_bridged_mode(adapter, !!new))
3269                 ret = len;
3270
3271 err_out:
3272         return ret;
3273 }
3274
3275 static ssize_t
3276 qlcnic_show_bridged_mode(struct device *dev,
3277                 struct device_attribute *attr, char *buf)
3278 {
3279         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3280         int bridged_mode = 0;
3281
3282         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
3283                 bridged_mode = !!(adapter->flags & QLCNIC_BRIDGE_ENABLED);
3284
3285         return sprintf(buf, "%d\n", bridged_mode);
3286 }
3287
3288 static struct device_attribute dev_attr_bridged_mode = {
3289        .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
3290        .show = qlcnic_show_bridged_mode,
3291        .store = qlcnic_store_bridged_mode,
3292 };
3293
3294 static ssize_t
3295 qlcnic_store_diag_mode(struct device *dev,
3296                 struct device_attribute *attr, const char *buf, size_t len)
3297 {
3298         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3299         unsigned long new;
3300
3301         if (strict_strtoul(buf, 2, &new))
3302                 return -EINVAL;
3303
3304         if (!!new != !!(adapter->flags & QLCNIC_DIAG_ENABLED))
3305                 adapter->flags ^= QLCNIC_DIAG_ENABLED;
3306
3307         return len;
3308 }
3309
3310 static ssize_t
3311 qlcnic_show_diag_mode(struct device *dev,
3312                 struct device_attribute *attr, char *buf)
3313 {
3314         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3315
3316         return sprintf(buf, "%d\n",
3317                         !!(adapter->flags & QLCNIC_DIAG_ENABLED));
3318 }
3319
3320 static struct device_attribute dev_attr_diag_mode = {
3321         .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
3322         .show = qlcnic_show_diag_mode,
3323         .store = qlcnic_store_diag_mode,
3324 };
3325
3326 static int
3327 qlcnic_sysfs_validate_crb(struct qlcnic_adapter *adapter,
3328                 loff_t offset, size_t size)
3329 {
3330         size_t crb_size = 4;
3331
3332         if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
3333                 return -EIO;
3334
3335         if (offset < QLCNIC_PCI_CRBSPACE) {
3336                 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM,
3337                                         QLCNIC_PCI_CAMQM_END))
3338                         crb_size = 8;
3339                 else
3340                         return -EINVAL;
3341         }
3342
3343         if ((size != crb_size) || (offset & (crb_size-1)))
3344                 return  -EINVAL;
3345
3346         return 0;
3347 }
3348
3349 static ssize_t
3350 qlcnic_sysfs_read_crb(struct file *filp, struct kobject *kobj,
3351                 struct bin_attribute *attr,
3352                 char *buf, loff_t offset, size_t size)
3353 {
3354         struct device *dev = container_of(kobj, struct device, kobj);
3355         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3356         u32 data;
3357         u64 qmdata;
3358         int ret;
3359
3360         ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
3361         if (ret != 0)
3362                 return ret;
3363
3364         if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
3365                 qlcnic_pci_camqm_read_2M(adapter, offset, &qmdata);
3366                 memcpy(buf, &qmdata, size);
3367         } else {
3368                 data = QLCRD32(adapter, offset);
3369                 memcpy(buf, &data, size);
3370         }
3371         return size;
3372 }
3373
3374 static ssize_t
3375 qlcnic_sysfs_write_crb(struct file *filp, struct kobject *kobj,
3376                 struct bin_attribute *attr,
3377                 char *buf, loff_t offset, size_t size)
3378 {
3379         struct device *dev = container_of(kobj, struct device, kobj);
3380         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3381         u32 data;
3382         u64 qmdata;
3383         int ret;
3384
3385         ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
3386         if (ret != 0)
3387                 return ret;
3388
3389         if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
3390                 memcpy(&qmdata, buf, size);
3391                 qlcnic_pci_camqm_write_2M(adapter, offset, qmdata);
3392         } else {
3393                 memcpy(&data, buf, size);
3394                 QLCWR32(adapter, offset, data);
3395         }
3396         return size;
3397 }
3398
3399 static int
3400 qlcnic_sysfs_validate_mem(struct qlcnic_adapter *adapter,
3401                 loff_t offset, size_t size)
3402 {
3403         if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
3404                 return -EIO;
3405
3406         if ((size != 8) || (offset & 0x7))
3407                 return  -EIO;
3408
3409         return 0;
3410 }
3411
3412 static ssize_t
3413 qlcnic_sysfs_read_mem(struct file *filp, struct kobject *kobj,
3414                 struct bin_attribute *attr,
3415                 char *buf, loff_t offset, size_t size)
3416 {
3417         struct device *dev = container_of(kobj, struct device, kobj);
3418         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3419         u64 data;
3420         int ret;
3421
3422         ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
3423         if (ret != 0)
3424                 return ret;
3425
3426         if (qlcnic_pci_mem_read_2M(adapter, offset, &data))
3427                 return -EIO;
3428
3429         memcpy(buf, &data, size);
3430
3431         return size;
3432 }
3433
3434 static ssize_t
3435 qlcnic_sysfs_write_mem(struct file *filp, struct kobject *kobj,
3436                 struct bin_attribute *attr,
3437                 char *buf, loff_t offset, size_t size)
3438 {
3439         struct device *dev = container_of(kobj, struct device, kobj);
3440         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3441         u64 data;
3442         int ret;
3443
3444         ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
3445         if (ret != 0)
3446                 return ret;
3447
3448         memcpy(&data, buf, size);
3449
3450         if (qlcnic_pci_mem_write_2M(adapter, offset, data))
3451                 return -EIO;
3452
3453         return size;
3454 }
3455
3456
3457 static struct bin_attribute bin_attr_crb = {
3458         .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
3459         .size = 0,
3460         .read = qlcnic_sysfs_read_crb,
3461         .write = qlcnic_sysfs_write_crb,
3462 };
3463
3464 static struct bin_attribute bin_attr_mem = {
3465         .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
3466         .size = 0,
3467         .read = qlcnic_sysfs_read_mem,
3468         .write = qlcnic_sysfs_write_mem,
3469 };
3470
3471 static int
3472 validate_pm_config(struct qlcnic_adapter *adapter,
3473                         struct qlcnic_pm_func_cfg *pm_cfg, int count)
3474 {
3475
3476         u8 src_pci_func, s_esw_id, d_esw_id;
3477         u8 dest_pci_func;
3478         int i;
3479
3480         for (i = 0; i < count; i++) {
3481                 src_pci_func = pm_cfg[i].pci_func;
3482                 dest_pci_func = pm_cfg[i].dest_npar;
3483                 if (src_pci_func >= QLCNIC_MAX_PCI_FUNC
3484                                 || dest_pci_func >= QLCNIC_MAX_PCI_FUNC)
3485                         return QL_STATUS_INVALID_PARAM;
3486
3487                 if (adapter->npars[src_pci_func].type != QLCNIC_TYPE_NIC)
3488                         return QL_STATUS_INVALID_PARAM;
3489
3490                 if (adapter->npars[dest_pci_func].type != QLCNIC_TYPE_NIC)
3491                         return QL_STATUS_INVALID_PARAM;
3492
3493                 s_esw_id = adapter->npars[src_pci_func].phy_port;
3494                 d_esw_id = adapter->npars[dest_pci_func].phy_port;
3495
3496                 if (s_esw_id != d_esw_id)
3497                         return QL_STATUS_INVALID_PARAM;
3498
3499         }
3500         return 0;
3501
3502 }
3503
3504 static ssize_t
3505 qlcnic_sysfs_write_pm_config(struct file *filp, struct kobject *kobj,
3506         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3507 {
3508         struct device *dev = container_of(kobj, struct device, kobj);
3509         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3510         struct qlcnic_pm_func_cfg *pm_cfg;
3511         u32 id, action, pci_func;
3512         int count, rem, i, ret;
3513
3514         count   = size / sizeof(struct qlcnic_pm_func_cfg);
3515         rem     = size % sizeof(struct qlcnic_pm_func_cfg);
3516         if (rem)
3517                 return QL_STATUS_INVALID_PARAM;
3518
3519         pm_cfg = (struct qlcnic_pm_func_cfg *) buf;
3520
3521         ret = validate_pm_config(adapter, pm_cfg, count);
3522         if (ret)
3523                 return ret;
3524         for (i = 0; i < count; i++) {
3525                 pci_func = pm_cfg[i].pci_func;
3526                 action = !!pm_cfg[i].action;
3527                 id = adapter->npars[pci_func].phy_port;
3528                 ret = qlcnic_config_port_mirroring(adapter, id,
3529                                                 action, pci_func);
3530                 if (ret)
3531                         return ret;
3532         }
3533
3534         for (i = 0; i < count; i++) {
3535                 pci_func = pm_cfg[i].pci_func;
3536                 id = adapter->npars[pci_func].phy_port;
3537                 adapter->npars[pci_func].enable_pm = !!pm_cfg[i].action;
3538                 adapter->npars[pci_func].dest_npar = id;
3539         }
3540         return size;
3541 }
3542
3543 static ssize_t
3544 qlcnic_sysfs_read_pm_config(struct file *filp, struct kobject *kobj,
3545         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3546 {
3547         struct device *dev = container_of(kobj, struct device, kobj);
3548         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3549         struct qlcnic_pm_func_cfg pm_cfg[QLCNIC_MAX_PCI_FUNC];
3550         int i;
3551
3552         if (size != sizeof(pm_cfg))
3553                 return QL_STATUS_INVALID_PARAM;
3554
3555         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
3556                 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3557                         continue;
3558                 pm_cfg[i].action = adapter->npars[i].enable_pm;
3559                 pm_cfg[i].dest_npar = 0;
3560                 pm_cfg[i].pci_func = i;
3561         }
3562         memcpy(buf, &pm_cfg, size);
3563
3564         return size;
3565 }
3566
3567 static int
3568 validate_esw_config(struct qlcnic_adapter *adapter,
3569         struct qlcnic_esw_func_cfg *esw_cfg, int count)
3570 {
3571         u32 op_mode;
3572         u8 pci_func;
3573         int i;
3574
3575         op_mode = readl(adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE);
3576
3577         for (i = 0; i < count; i++) {
3578                 pci_func = esw_cfg[i].pci_func;
3579                 if (pci_func >= QLCNIC_MAX_PCI_FUNC)
3580                         return QL_STATUS_INVALID_PARAM;
3581
3582                 if (adapter->op_mode == QLCNIC_MGMT_FUNC)
3583                         if (adapter->npars[pci_func].type != QLCNIC_TYPE_NIC)
3584                                 return QL_STATUS_INVALID_PARAM;
3585
3586                 switch (esw_cfg[i].op_mode) {
3587                 case QLCNIC_PORT_DEFAULTS:
3588                         if (QLC_DEV_GET_DRV(op_mode, pci_func) !=
3589                                                 QLCNIC_NON_PRIV_FUNC) {
3590                                 esw_cfg[i].mac_anti_spoof = 0;
3591                                 esw_cfg[i].mac_override = 1;
3592                                 esw_cfg[i].promisc_mode = 1;
3593                         }
3594                         break;
3595                 case QLCNIC_ADD_VLAN:
3596                         if (!IS_VALID_VLAN(esw_cfg[i].vlan_id))
3597                                 return QL_STATUS_INVALID_PARAM;
3598                         if (!esw_cfg[i].op_type)
3599                                 return QL_STATUS_INVALID_PARAM;
3600                         break;
3601                 case QLCNIC_DEL_VLAN:
3602                         if (!esw_cfg[i].op_type)
3603                                 return QL_STATUS_INVALID_PARAM;
3604                         break;
3605                 default:
3606                         return QL_STATUS_INVALID_PARAM;
3607                 }
3608         }
3609         return 0;
3610 }
3611
3612 static ssize_t
3613 qlcnic_sysfs_write_esw_config(struct file *file, struct kobject *kobj,
3614         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3615 {
3616         struct device *dev = container_of(kobj, struct device, kobj);
3617         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3618         struct qlcnic_esw_func_cfg *esw_cfg;
3619         struct qlcnic_npar_info *npar;
3620         int count, rem, i, ret;
3621         u8 pci_func, op_mode = 0;
3622
3623         count   = size / sizeof(struct qlcnic_esw_func_cfg);
3624         rem     = size % sizeof(struct qlcnic_esw_func_cfg);
3625         if (rem)
3626                 return QL_STATUS_INVALID_PARAM;
3627
3628         esw_cfg = (struct qlcnic_esw_func_cfg *) buf;
3629         ret = validate_esw_config(adapter, esw_cfg, count);
3630         if (ret)
3631                 return ret;
3632
3633         for (i = 0; i < count; i++) {
3634                 if (adapter->op_mode == QLCNIC_MGMT_FUNC)
3635                         if (qlcnic_config_switch_port(adapter, &esw_cfg[i]))
3636                                 return QL_STATUS_INVALID_PARAM;
3637
3638                 if (adapter->ahw.pci_func != esw_cfg[i].pci_func)
3639                         continue;
3640
3641                 op_mode = esw_cfg[i].op_mode;
3642                 qlcnic_get_eswitch_port_config(adapter, &esw_cfg[i]);
3643                 esw_cfg[i].op_mode = op_mode;
3644                 esw_cfg[i].pci_func = adapter->ahw.pci_func;
3645
3646                 switch (esw_cfg[i].op_mode) {
3647                 case QLCNIC_PORT_DEFAULTS:
3648                         qlcnic_set_eswitch_port_features(adapter, &esw_cfg[i]);
3649                         break;
3650                 case QLCNIC_ADD_VLAN:
3651                         qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
3652                         break;
3653                 case QLCNIC_DEL_VLAN:
3654                         esw_cfg[i].vlan_id = 0;
3655                         qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
3656                         break;
3657                 }
3658         }
3659
3660         if (adapter->op_mode != QLCNIC_MGMT_FUNC)
3661                 goto out;
3662
3663         for (i = 0; i < count; i++) {
3664                 pci_func = esw_cfg[i].pci_func;
3665                 npar = &adapter->npars[pci_func];
3666                 switch (esw_cfg[i].op_mode) {
3667                 case QLCNIC_PORT_DEFAULTS:
3668                         npar->promisc_mode = esw_cfg[i].promisc_mode;
3669                         npar->mac_override = esw_cfg[i].mac_override;
3670                         npar->offload_flags = esw_cfg[i].offload_flags;
3671                         npar->mac_anti_spoof = esw_cfg[i].mac_anti_spoof;
3672                         npar->discard_tagged = esw_cfg[i].discard_tagged;
3673                         break;
3674                 case QLCNIC_ADD_VLAN:
3675                         npar->pvid = esw_cfg[i].vlan_id;
3676                         break;
3677                 case QLCNIC_DEL_VLAN:
3678                         npar->pvid = 0;
3679                         break;
3680                 }
3681         }
3682 out:
3683         return size;
3684 }
3685
3686 static ssize_t
3687 qlcnic_sysfs_read_esw_config(struct file *file, struct kobject *kobj,
3688         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3689 {
3690         struct device *dev = container_of(kobj, struct device, kobj);
3691         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3692         struct qlcnic_esw_func_cfg esw_cfg[QLCNIC_MAX_PCI_FUNC];
3693         u8 i;
3694
3695         if (size != sizeof(esw_cfg))
3696                 return QL_STATUS_INVALID_PARAM;
3697
3698         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
3699                 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3700                         continue;
3701                 esw_cfg[i].pci_func = i;
3702                 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg[i]))
3703                         return QL_STATUS_INVALID_PARAM;
3704         }
3705         memcpy(buf, &esw_cfg, size);
3706
3707         return size;
3708 }
3709
3710 static int
3711 validate_npar_config(struct qlcnic_adapter *adapter,
3712                                 struct qlcnic_npar_func_cfg *np_cfg, int count)
3713 {
3714         u8 pci_func, i;
3715
3716         for (i = 0; i < count; i++) {
3717                 pci_func = np_cfg[i].pci_func;
3718                 if (pci_func >= QLCNIC_MAX_PCI_FUNC)
3719                         return QL_STATUS_INVALID_PARAM;
3720
3721                 if (adapter->npars[pci_func].type != QLCNIC_TYPE_NIC)
3722                         return QL_STATUS_INVALID_PARAM;
3723
3724                 if (!IS_VALID_BW(np_cfg[i].min_bw)
3725                                 || !IS_VALID_BW(np_cfg[i].max_bw)
3726                                 || !IS_VALID_RX_QUEUES(np_cfg[i].max_rx_queues)
3727                                 || !IS_VALID_TX_QUEUES(np_cfg[i].max_tx_queues))
3728                         return QL_STATUS_INVALID_PARAM;
3729         }
3730         return 0;
3731 }
3732
3733 static ssize_t
3734 qlcnic_sysfs_write_npar_config(struct file *file, struct kobject *kobj,
3735         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3736 {
3737         struct device *dev = container_of(kobj, struct device, kobj);
3738         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3739         struct qlcnic_info nic_info;
3740         struct qlcnic_npar_func_cfg *np_cfg;
3741         int i, count, rem, ret;
3742         u8 pci_func;
3743
3744         count   = size / sizeof(struct qlcnic_npar_func_cfg);
3745         rem     = size % sizeof(struct qlcnic_npar_func_cfg);
3746         if (rem)
3747                 return QL_STATUS_INVALID_PARAM;
3748
3749         np_cfg = (struct qlcnic_npar_func_cfg *) buf;
3750         ret = validate_npar_config(adapter, np_cfg, count);
3751         if (ret)
3752                 return ret;
3753
3754         for (i = 0; i < count ; i++) {
3755                 pci_func = np_cfg[i].pci_func;
3756                 ret = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
3757                 if (ret)
3758                         return ret;
3759                 nic_info.pci_func = pci_func;
3760                 nic_info.min_tx_bw = np_cfg[i].min_bw;
3761                 nic_info.max_tx_bw = np_cfg[i].max_bw;
3762                 ret = qlcnic_set_nic_info(adapter, &nic_info);
3763                 if (ret)
3764                         return ret;
3765                 adapter->npars[i].min_bw = nic_info.min_tx_bw;
3766                 adapter->npars[i].max_bw = nic_info.max_tx_bw;
3767         }
3768
3769         return size;
3770
3771 }
3772 static ssize_t
3773 qlcnic_sysfs_read_npar_config(struct file *file, struct kobject *kobj,
3774         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3775 {
3776         struct device *dev = container_of(kobj, struct device, kobj);
3777         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3778         struct qlcnic_info nic_info;
3779         struct qlcnic_npar_func_cfg np_cfg[QLCNIC_MAX_PCI_FUNC];
3780         int i, ret;
3781
3782         if (size != sizeof(np_cfg))
3783                 return QL_STATUS_INVALID_PARAM;
3784
3785         for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) {
3786                 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3787                         continue;
3788                 ret = qlcnic_get_nic_info(adapter, &nic_info, i);
3789                 if (ret)
3790                         return ret;
3791
3792                 np_cfg[i].pci_func = i;
3793                 np_cfg[i].op_mode = (u8)nic_info.op_mode;
3794                 np_cfg[i].port_num = nic_info.phys_port;
3795                 np_cfg[i].fw_capab = nic_info.capabilities;
3796                 np_cfg[i].min_bw = nic_info.min_tx_bw ;
3797                 np_cfg[i].max_bw = nic_info.max_tx_bw;
3798                 np_cfg[i].max_tx_queues = nic_info.max_tx_ques;
3799                 np_cfg[i].max_rx_queues = nic_info.max_rx_ques;
3800         }
3801         memcpy(buf, &np_cfg, size);
3802         return size;
3803 }
3804
3805 static ssize_t
3806 qlcnic_sysfs_get_port_stats(struct file *file, struct kobject *kobj,
3807         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3808 {
3809         struct device *dev = container_of(kobj, struct device, kobj);
3810         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3811         struct qlcnic_esw_statistics port_stats;
3812         int ret;
3813
3814         if (size != sizeof(struct qlcnic_esw_statistics))
3815                 return QL_STATUS_INVALID_PARAM;
3816
3817         if (offset >= QLCNIC_MAX_PCI_FUNC)
3818                 return QL_STATUS_INVALID_PARAM;
3819
3820         memset(&port_stats, 0, size);
3821         ret = qlcnic_get_port_stats(adapter, offset, QLCNIC_QUERY_RX_COUNTER,
3822                                                                 &port_stats.rx);
3823         if (ret)
3824                 return ret;
3825
3826         ret = qlcnic_get_port_stats(adapter, offset, QLCNIC_QUERY_TX_COUNTER,
3827                                                                 &port_stats.tx);
3828         if (ret)
3829                 return ret;
3830
3831         memcpy(buf, &port_stats, size);
3832         return size;
3833 }
3834
3835 static ssize_t
3836 qlcnic_sysfs_get_esw_stats(struct file *file, struct kobject *kobj,
3837         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3838 {
3839         struct device *dev = container_of(kobj, struct device, kobj);
3840         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3841         struct qlcnic_esw_statistics esw_stats;
3842         int ret;
3843
3844         if (size != sizeof(struct qlcnic_esw_statistics))
3845                 return QL_STATUS_INVALID_PARAM;
3846
3847         if (offset >= QLCNIC_NIU_MAX_XG_PORTS)
3848                 return QL_STATUS_INVALID_PARAM;
3849
3850         memset(&esw_stats, 0, size);
3851         ret = qlcnic_get_eswitch_stats(adapter, offset, QLCNIC_QUERY_RX_COUNTER,
3852                                                                 &esw_stats.rx);
3853         if (ret)
3854                 return ret;
3855
3856         ret = qlcnic_get_eswitch_stats(adapter, offset, QLCNIC_QUERY_TX_COUNTER,
3857                                                                 &esw_stats.tx);
3858         if (ret)
3859                 return ret;
3860
3861         memcpy(buf, &esw_stats, size);
3862         return size;
3863 }
3864
3865 static ssize_t
3866 qlcnic_sysfs_clear_esw_stats(struct file *file, struct kobject *kobj,
3867         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3868 {
3869         struct device *dev = container_of(kobj, struct device, kobj);
3870         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3871         int ret;
3872
3873         if (offset >= QLCNIC_NIU_MAX_XG_PORTS)
3874                 return QL_STATUS_INVALID_PARAM;
3875
3876         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_ESWITCH, offset,
3877                                                 QLCNIC_QUERY_RX_COUNTER);
3878         if (ret)
3879                 return ret;
3880
3881         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_ESWITCH, offset,
3882                                                 QLCNIC_QUERY_TX_COUNTER);
3883         if (ret)
3884                 return ret;
3885
3886         return size;
3887 }
3888
3889 static ssize_t
3890 qlcnic_sysfs_clear_port_stats(struct file *file, struct kobject *kobj,
3891         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3892 {
3893
3894         struct device *dev = container_of(kobj, struct device, kobj);
3895         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3896         int ret;
3897
3898         if (offset >= QLCNIC_MAX_PCI_FUNC)
3899                 return QL_STATUS_INVALID_PARAM;
3900
3901         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_PORT, offset,
3902                                                 QLCNIC_QUERY_RX_COUNTER);
3903         if (ret)
3904                 return ret;
3905
3906         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_PORT, offset,
3907                                                 QLCNIC_QUERY_TX_COUNTER);
3908         if (ret)
3909                 return ret;
3910
3911         return size;
3912 }
3913
3914 static ssize_t
3915 qlcnic_sysfs_read_pci_config(struct file *file, struct kobject *kobj,
3916         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3917 {
3918         struct device *dev = container_of(kobj, struct device, kobj);
3919         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3920         struct qlcnic_pci_func_cfg pci_cfg[QLCNIC_MAX_PCI_FUNC];
3921         struct qlcnic_pci_info *pci_info;
3922         int i, ret;
3923
3924         if (size != sizeof(pci_cfg))
3925                 return QL_STATUS_INVALID_PARAM;
3926
3927         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
3928         if (!pci_info)
3929                 return -ENOMEM;
3930
3931         ret = qlcnic_get_pci_info(adapter, pci_info);
3932         if (ret) {
3933                 kfree(pci_info);
3934                 return ret;
3935         }
3936
3937         for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) {
3938                 pci_cfg[i].pci_func = pci_info[i].id;
3939                 pci_cfg[i].func_type = pci_info[i].type;
3940                 pci_cfg[i].port_num = pci_info[i].default_port;
3941                 pci_cfg[i].min_bw = pci_info[i].tx_min_bw;
3942                 pci_cfg[i].max_bw = pci_info[i].tx_max_bw;
3943                 memcpy(&pci_cfg[i].def_mac_addr, &pci_info[i].mac, ETH_ALEN);
3944         }
3945         memcpy(buf, &pci_cfg, size);
3946         kfree(pci_info);
3947         return size;
3948 }
3949 static struct bin_attribute bin_attr_npar_config = {
3950         .attr = {.name = "npar_config", .mode = (S_IRUGO | S_IWUSR)},
3951         .size = 0,
3952         .read = qlcnic_sysfs_read_npar_config,
3953         .write = qlcnic_sysfs_write_npar_config,
3954 };
3955
3956 static struct bin_attribute bin_attr_pci_config = {
3957         .attr = {.name = "pci_config", .mode = (S_IRUGO | S_IWUSR)},
3958         .size = 0,
3959         .read = qlcnic_sysfs_read_pci_config,
3960         .write = NULL,
3961 };
3962
3963 static struct bin_attribute bin_attr_port_stats = {
3964         .attr = {.name = "port_stats", .mode = (S_IRUGO | S_IWUSR)},
3965         .size = 0,
3966         .read = qlcnic_sysfs_get_port_stats,
3967         .write = qlcnic_sysfs_clear_port_stats,
3968 };
3969
3970 static struct bin_attribute bin_attr_esw_stats = {
3971         .attr = {.name = "esw_stats", .mode = (S_IRUGO | S_IWUSR)},
3972         .size = 0,
3973         .read = qlcnic_sysfs_get_esw_stats,
3974         .write = qlcnic_sysfs_clear_esw_stats,
3975 };
3976
3977 static struct bin_attribute bin_attr_esw_config = {
3978         .attr = {.name = "esw_config", .mode = (S_IRUGO | S_IWUSR)},
3979         .size = 0,
3980         .read = qlcnic_sysfs_read_esw_config,
3981         .write = qlcnic_sysfs_write_esw_config,
3982 };
3983
3984 static struct bin_attribute bin_attr_pm_config = {
3985         .attr = {.name = "pm_config", .mode = (S_IRUGO | S_IWUSR)},
3986         .size = 0,
3987         .read = qlcnic_sysfs_read_pm_config,
3988         .write = qlcnic_sysfs_write_pm_config,
3989 };
3990
3991 static void
3992 qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter)
3993 {
3994         struct device *dev = &adapter->pdev->dev;
3995
3996         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
3997                 if (device_create_file(dev, &dev_attr_bridged_mode))
3998                         dev_warn(dev,
3999                                 "failed to create bridged_mode sysfs entry\n");
4000 }
4001
4002 static void
4003 qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter)
4004 {
4005         struct device *dev = &adapter->pdev->dev;
4006
4007         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
4008                 device_remove_file(dev, &dev_attr_bridged_mode);
4009 }
4010
4011 static void
4012 qlcnic_create_diag_entries(struct qlcnic_adapter *adapter)
4013 {
4014         struct device *dev = &adapter->pdev->dev;
4015
4016         if (device_create_bin_file(dev, &bin_attr_port_stats))
4017                 dev_info(dev, "failed to create port stats sysfs entry");
4018
4019         if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
4020                 return;
4021         if (device_create_file(dev, &dev_attr_diag_mode))
4022                 dev_info(dev, "failed to create diag_mode sysfs entry\n");
4023         if (device_create_bin_file(dev, &bin_attr_crb))
4024                 dev_info(dev, "failed to create crb sysfs entry\n");
4025         if (device_create_bin_file(dev, &bin_attr_mem))
4026                 dev_info(dev, "failed to create mem sysfs entry\n");
4027         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
4028                 return;
4029         if (device_create_bin_file(dev, &bin_attr_esw_config))
4030                 dev_info(dev, "failed to create esw config sysfs entry");
4031         if (adapter->op_mode != QLCNIC_MGMT_FUNC)
4032                 return;
4033         if (device_create_bin_file(dev, &bin_attr_pci_config))
4034                 dev_info(dev, "failed to create pci config sysfs entry");
4035         if (device_create_bin_file(dev, &bin_attr_npar_config))
4036                 dev_info(dev, "failed to create npar config sysfs entry");
4037         if (device_create_bin_file(dev, &bin_attr_pm_config))
4038                 dev_info(dev, "failed to create pm config sysfs entry");
4039         if (device_create_bin_file(dev, &bin_attr_esw_stats))
4040                 dev_info(dev, "failed to create eswitch stats sysfs entry");
4041 }
4042
4043 static void
4044 qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter)
4045 {
4046         struct device *dev = &adapter->pdev->dev;
4047
4048         device_remove_bin_file(dev, &bin_attr_port_stats);
4049
4050         if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
4051                 return;
4052         device_remove_file(dev, &dev_attr_diag_mode);
4053         device_remove_bin_file(dev, &bin_attr_crb);
4054         device_remove_bin_file(dev, &bin_attr_mem);
4055         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
4056                 return;
4057         device_remove_bin_file(dev, &bin_attr_esw_config);
4058         if (adapter->op_mode != QLCNIC_MGMT_FUNC)
4059                 return;
4060         device_remove_bin_file(dev, &bin_attr_pci_config);
4061         device_remove_bin_file(dev, &bin_attr_npar_config);
4062         device_remove_bin_file(dev, &bin_attr_pm_config);
4063         device_remove_bin_file(dev, &bin_attr_esw_stats);
4064 }
4065
4066 #ifdef CONFIG_INET
4067
4068 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4069
4070 static void
4071 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4072                         struct net_device *dev, unsigned long event)
4073 {
4074         struct in_device *indev;
4075
4076         indev = in_dev_get(dev);
4077         if (!indev)
4078                 return;
4079
4080         for_ifa(indev) {
4081                 switch (event) {
4082                 case NETDEV_UP:
4083                         qlcnic_config_ipaddr(adapter,
4084                                         ifa->ifa_address, QLCNIC_IP_UP);
4085                         break;
4086                 case NETDEV_DOWN:
4087                         qlcnic_config_ipaddr(adapter,
4088                                         ifa->ifa_address, QLCNIC_IP_DOWN);
4089                         break;
4090                 default:
4091                         break;
4092                 }
4093         } endfor_ifa(indev);
4094
4095         in_dev_put(indev);
4096 }
4097
4098 static void
4099 qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4100 {
4101         struct qlcnic_adapter *adapter = netdev_priv(netdev);
4102         struct net_device *dev;
4103         u16 vid;
4104
4105         qlcnic_config_indev_addr(adapter, netdev, event);
4106
4107         if (!adapter->vlgrp)
4108                 return;
4109
4110         for (vid = 0; vid < VLAN_N_VID; vid++) {
4111                 dev = vlan_group_get_device(adapter->vlgrp, vid);
4112                 if (!dev)
4113                         continue;
4114
4115                 qlcnic_config_indev_addr(adapter, dev, event);
4116         }
4117 }
4118
4119 static int qlcnic_netdev_event(struct notifier_block *this,
4120                                  unsigned long event, void *ptr)
4121 {
4122         struct qlcnic_adapter *adapter;
4123         struct net_device *dev = (struct net_device *)ptr;
4124
4125 recheck:
4126         if (dev == NULL)
4127                 goto done;
4128
4129         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4130                 dev = vlan_dev_real_dev(dev);
4131                 goto recheck;
4132         }
4133
4134         if (!is_qlcnic_netdev(dev))
4135                 goto done;
4136
4137         adapter = netdev_priv(dev);
4138
4139         if (!adapter)
4140                 goto done;
4141
4142         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4143                 goto done;
4144
4145         qlcnic_config_indev_addr(adapter, dev, event);
4146 done:
4147         return NOTIFY_DONE;
4148 }
4149
4150 static int
4151 qlcnic_inetaddr_event(struct notifier_block *this,
4152                 unsigned long event, void *ptr)
4153 {
4154         struct qlcnic_adapter *adapter;
4155         struct net_device *dev;
4156
4157         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4158
4159         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4160
4161 recheck:
4162         if (dev == NULL)
4163                 goto done;
4164
4165         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4166                 dev = vlan_dev_real_dev(dev);
4167                 goto recheck;
4168         }
4169
4170         if (!is_qlcnic_netdev(dev))
4171                 goto done;
4172
4173         adapter = netdev_priv(dev);
4174
4175         if (!adapter)
4176                 goto done;
4177
4178         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4179                 goto done;
4180
4181         switch (event) {
4182         case NETDEV_UP:
4183                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4184                 break;
4185         case NETDEV_DOWN:
4186                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4187                 break;
4188         default:
4189                 break;
4190         }
4191
4192 done:
4193         return NOTIFY_DONE;
4194 }
4195
4196 static struct notifier_block    qlcnic_netdev_cb = {
4197         .notifier_call = qlcnic_netdev_event,
4198 };
4199
4200 static struct notifier_block qlcnic_inetaddr_cb = {
4201         .notifier_call = qlcnic_inetaddr_event,
4202 };
4203 #else
4204 static void
4205 qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4206 { }
4207 #endif
4208 static struct pci_error_handlers qlcnic_err_handler = {
4209         .error_detected = qlcnic_io_error_detected,
4210         .slot_reset = qlcnic_io_slot_reset,
4211         .resume = qlcnic_io_resume,
4212 };
4213
4214 static struct pci_driver qlcnic_driver = {
4215         .name = qlcnic_driver_name,
4216         .id_table = qlcnic_pci_tbl,
4217         .probe = qlcnic_probe,
4218         .remove = __devexit_p(qlcnic_remove),
4219 #ifdef CONFIG_PM
4220         .suspend = qlcnic_suspend,
4221         .resume = qlcnic_resume,
4222 #endif
4223         .shutdown = qlcnic_shutdown,
4224         .err_handler = &qlcnic_err_handler
4225
4226 };
4227
4228 static int __init qlcnic_init_module(void)
4229 {
4230         int ret;
4231
4232         printk(KERN_INFO "%s\n", qlcnic_driver_string);
4233
4234         qlcnic_wq = create_singlethread_workqueue("qlcnic");
4235         if (qlcnic_wq == NULL) {
4236                 printk(KERN_ERR "qlcnic: cannot create workqueue\n");
4237                 return -ENOMEM;
4238         }
4239
4240 #ifdef CONFIG_INET
4241         register_netdevice_notifier(&qlcnic_netdev_cb);
4242         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4243 #endif
4244
4245         ret = pci_register_driver(&qlcnic_driver);
4246         if (ret) {
4247 #ifdef CONFIG_INET
4248                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4249                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4250 #endif
4251                 destroy_workqueue(qlcnic_wq);
4252         }
4253
4254         return ret;
4255 }
4256
4257 module_init(qlcnic_init_module);
4258
4259 static void __exit qlcnic_exit_module(void)
4260 {
4261
4262         pci_unregister_driver(&qlcnic_driver);
4263
4264 #ifdef CONFIG_INET
4265         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4266         unregister_netdevice_notifier(&qlcnic_netdev_cb);
4267 #endif
4268         destroy_workqueue(qlcnic_wq);
4269 }
4270
4271 module_exit(qlcnic_exit_module);