Pileus Git - ~andy/linux/blob - 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         u32 val;
1489
1490         err = pci_enable_device(pdev);
1491         if (err)
1492                 return err;
1493
1494         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1495                 err = -ENODEV;
1496                 goto err_out_disable_pdev;
1497         }
1498
1499         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
1500         if (err)
1501                 goto err_out_disable_pdev;
1502
1503         err = pci_request_regions(pdev, qlcnic_driver_name);
1504         if (err)
1505                 goto err_out_disable_pdev;
1506
1507         pci_set_master(pdev);
1508         pci_enable_pcie_error_reporting(pdev);
1509
1510         netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1511         if (!netdev) {
1512                 dev_err(&pdev->dev, "failed to allocate net_device\n");
1513                 err = -ENOMEM;
1514                 goto err_out_free_res;
1515         }
1516
1517         SET_NETDEV_DEV(netdev, &pdev->dev);
1518
1519         adapter = netdev_priv(netdev);
1520         adapter->netdev  = netdev;
1521         adapter->pdev    = pdev;
1522         adapter->dev_rst_time = jiffies;
1523
1524         revision_id = pdev->revision;
1525         adapter->ahw.revision_id = revision_id;
1526
1527         rwlock_init(&adapter->ahw.crb_lock);
1528         mutex_init(&adapter->ahw.mem_lock);
1529
1530         spin_lock_init(&adapter->tx_clean_lock);
1531         INIT_LIST_HEAD(&adapter->mac_list);
1532
1533         err = qlcnic_setup_pci_map(adapter);
1534         if (err)
1535                 goto err_out_free_netdev;
1536
1537         /* This will be reset for mezz cards  */
1538         adapter->portnum = adapter->ahw.pci_func;
1539
1540         err = qlcnic_get_board_info(adapter);
1541         if (err) {
1542                 dev_err(&pdev->dev, "Error getting board config info.\n");
1543                 goto err_out_iounmap;
1544         }
1545
1546         err = qlcnic_setup_idc_param(adapter);
1547         if (err)
1548                 goto err_out_iounmap;
1549
1550         val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
1551         if (QLC_DEV_CHECK_ACTIVE(val, adapter->portnum))
1552                 adapter->flags |= QLCNIC_NEED_FLR;
1553
1554         err = adapter->nic_ops->start_firmware(adapter);
1555         if (err) {
1556                 dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
1557                 goto err_out_decr_ref;
1558         }
1559
1560         if (qlcnic_read_mac_addr(adapter))
1561                 dev_warn(&pdev->dev, "failed to read mac addr\n");
1562
1563         if (adapter->portnum == 0) {
1564                 get_brd_name(adapter, brd_name);
1565
1566                 pr_info("%s: %s Board Chip rev 0x%x\n",
1567                                 module_name(THIS_MODULE),
1568                                 brd_name, adapter->ahw.revision_id);
1569         }
1570
1571         qlcnic_clear_stats(adapter);
1572
1573         qlcnic_setup_intr(adapter);
1574
1575         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
1576         if (err)
1577                 goto err_out_disable_msi;
1578
1579         pci_set_drvdata(pdev, adapter);
1580
1581         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1582
1583         switch (adapter->ahw.port_type) {
1584         case QLCNIC_GBE:
1585                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1586                                 adapter->netdev->name);
1587                 break;
1588         case QLCNIC_XGBE:
1589                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1590                                 adapter->netdev->name);
1591                 break;
1592         }
1593
1594         qlcnic_alloc_lb_filters_mem(adapter);
1595         qlcnic_create_diag_entries(adapter);
1596
1597         return 0;
1598
1599 err_out_disable_msi:
1600         qlcnic_teardown_intr(adapter);
1601
1602 err_out_decr_ref:
1603         qlcnic_clr_all_drv_state(adapter, 0);
1604
1605 err_out_iounmap:
1606         qlcnic_cleanup_pci_map(adapter);
1607
1608 err_out_free_netdev:
1609         free_netdev(netdev);
1610
1611 err_out_free_res:
1612         pci_release_regions(pdev);
1613
1614 err_out_disable_pdev:
1615         pci_set_drvdata(pdev, NULL);
1616         pci_disable_device(pdev);
1617         return err;
1618 }
1619
1620 static void __devexit qlcnic_remove(struct pci_dev *pdev)
1621 {
1622         struct qlcnic_adapter *adapter;
1623         struct net_device *netdev;
1624
1625         adapter = pci_get_drvdata(pdev);
1626         if (adapter == NULL)
1627                 return;
1628
1629         netdev = adapter->netdev;
1630
1631         qlcnic_cancel_fw_work(adapter);
1632
1633         unregister_netdev(netdev);
1634
1635         qlcnic_detach(adapter);
1636
1637         if (adapter->npars != NULL)
1638                 kfree(adapter->npars);
1639         if (adapter->eswitch != NULL)
1640                 kfree(adapter->eswitch);
1641
1642         qlcnic_clr_all_drv_state(adapter, 0);
1643
1644         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1645
1646         qlcnic_free_lb_filters_mem(adapter);
1647
1648         qlcnic_teardown_intr(adapter);
1649
1650         qlcnic_remove_diag_entries(adapter);
1651
1652         qlcnic_cleanup_pci_map(adapter);
1653
1654         qlcnic_release_firmware(adapter);
1655
1656         pci_disable_pcie_error_reporting(pdev);
1657         pci_release_regions(pdev);
1658         pci_disable_device(pdev);
1659         pci_set_drvdata(pdev, NULL);
1660
1661         free_netdev(netdev);
1662 }
1663 static int __qlcnic_shutdown(struct pci_dev *pdev)
1664 {
1665         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1666         struct net_device *netdev = adapter->netdev;
1667         int retval;
1668
1669         netif_device_detach(netdev);
1670
1671         qlcnic_cancel_fw_work(adapter);
1672
1673         if (netif_running(netdev))
1674                 qlcnic_down(adapter, netdev);
1675
1676         qlcnic_clr_all_drv_state(adapter, 0);
1677
1678         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1679
1680         retval = pci_save_state(pdev);
1681         if (retval)
1682                 return retval;
1683
1684         if (qlcnic_wol_supported(adapter)) {
1685                 pci_enable_wake(pdev, PCI_D3cold, 1);
1686                 pci_enable_wake(pdev, PCI_D3hot, 1);
1687         }
1688
1689         return 0;
1690 }
1691
1692 static void qlcnic_shutdown(struct pci_dev *pdev)
1693 {
1694         if (__qlcnic_shutdown(pdev))
1695                 return;
1696
1697         pci_disable_device(pdev);
1698 }
1699
1700 #ifdef CONFIG_PM
1701 static int
1702 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
1703 {
1704         int retval;
1705
1706         retval = __qlcnic_shutdown(pdev);
1707         if (retval)
1708                 return retval;
1709
1710         pci_set_power_state(pdev, pci_choose_state(pdev, state));
1711         return 0;
1712 }
1713
1714 static int
1715 qlcnic_resume(struct pci_dev *pdev)
1716 {
1717         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1718         struct net_device *netdev = adapter->netdev;
1719         int err;
1720
1721         err = pci_enable_device(pdev);
1722         if (err)
1723                 return err;
1724
1725         pci_set_power_state(pdev, PCI_D0);
1726         pci_set_master(pdev);
1727         pci_restore_state(pdev);
1728
1729         err = adapter->nic_ops->start_firmware(adapter);
1730         if (err) {
1731                 dev_err(&pdev->dev, "failed to start firmware\n");
1732                 return err;
1733         }
1734
1735         if (netif_running(netdev)) {
1736                 err = qlcnic_up(adapter, netdev);
1737                 if (err)
1738                         goto done;
1739
1740                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1741         }
1742 done:
1743         netif_device_attach(netdev);
1744         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1745         return 0;
1746 }
1747 #endif
1748
1749 static int qlcnic_open(struct net_device *netdev)
1750 {
1751         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1752         int err;
1753
1754         err = qlcnic_attach(adapter);
1755         if (err)
1756                 return err;
1757
1758         err = __qlcnic_up(adapter, netdev);
1759         if (err)
1760                 goto err_out;
1761
1762         netif_start_queue(netdev);
1763
1764         return 0;
1765
1766 err_out:
1767         qlcnic_detach(adapter);
1768         return err;
1769 }
1770
1771 /*
1772  * qlcnic_close - Disables a network interface entry point
1773  */
1774 static int qlcnic_close(struct net_device *netdev)
1775 {
1776         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1777
1778         __qlcnic_down(adapter, netdev);
1779         return 0;
1780 }
1781
1782 static void
1783 qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
1784 {
1785         void *head;
1786         int i;
1787
1788         if (!qlcnic_mac_learn)
1789                 return;
1790
1791         spin_lock_init(&adapter->mac_learn_lock);
1792
1793         head = kcalloc(QLCNIC_LB_MAX_FILTERS, sizeof(struct hlist_head),
1794                                                                 GFP_KERNEL);
1795         if (!head)
1796                 return;
1797
1798         adapter->fhash.fmax = QLCNIC_LB_MAX_FILTERS;
1799         adapter->fhash.fhead = (struct hlist_head *)head;
1800
1801         for (i = 0; i < adapter->fhash.fmax; i++)
1802                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
1803 }
1804
1805 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
1806 {
1807         if (adapter->fhash.fmax && adapter->fhash.fhead)
1808                 kfree(adapter->fhash.fhead);
1809
1810         adapter->fhash.fhead = NULL;
1811         adapter->fhash.fmax = 0;
1812 }
1813
1814 static void qlcnic_change_filter(struct qlcnic_adapter *adapter,
1815                 u64 uaddr, __le16 vlan_id, struct qlcnic_host_tx_ring *tx_ring)
1816 {
1817         struct cmd_desc_type0 *hwdesc;
1818         struct qlcnic_nic_req *req;
1819         struct qlcnic_mac_req *mac_req;
1820         struct qlcnic_vlan_req *vlan_req;
1821         u32 producer;
1822         u64 word;
1823
1824         producer = tx_ring->producer;
1825         hwdesc = &tx_ring->desc_head[tx_ring->producer];
1826
1827         req = (struct qlcnic_nic_req *)hwdesc;
1828         memset(req, 0, sizeof(struct qlcnic_nic_req));
1829         req->qhdr = cpu_to_le64(QLCNIC_REQUEST << 23);
1830
1831         word = QLCNIC_MAC_EVENT | ((u64)(adapter->portnum) << 16);
1832         req->req_hdr = cpu_to_le64(word);
1833
1834         mac_req = (struct qlcnic_mac_req *)&(req->words[0]);
1835         mac_req->op = vlan_id ? QLCNIC_MAC_VLAN_ADD : QLCNIC_MAC_ADD;
1836         memcpy(mac_req->mac_addr, &uaddr, ETH_ALEN);
1837
1838         vlan_req = (struct qlcnic_vlan_req *)&req->words[1];
1839         vlan_req->vlan_id = vlan_id;
1840
1841         tx_ring->producer = get_next_index(producer, tx_ring->num_desc);
1842 }
1843
1844 #define QLCNIC_MAC_HASH(MAC)\
1845         ((((MAC) & 0x70000) >> 0x10) | (((MAC) & 0x70000000000ULL) >> 0x25))
1846
1847 static void
1848 qlcnic_send_filter(struct qlcnic_adapter *adapter,
1849                 struct qlcnic_host_tx_ring *tx_ring,
1850                 struct cmd_desc_type0 *first_desc,
1851                 struct sk_buff *skb)
1852 {
1853         struct ethhdr *phdr = (struct ethhdr *)(skb->data);
1854         struct qlcnic_filter *fil, *tmp_fil;
1855         struct hlist_node *tmp_hnode, *n;
1856         struct hlist_head *head;
1857         u64 src_addr = 0;
1858         __le16 vlan_id = 0;
1859         u8 hindex;
1860
1861         if (!compare_ether_addr(phdr->h_source, adapter->mac_addr))
1862                 return;
1863
1864         if (adapter->fhash.fnum >= adapter->fhash.fmax)
1865                 return;
1866
1867         /* Only NPAR capable devices support vlan based learning*/
1868         if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
1869                 vlan_id = first_desc->vlan_TCI;
1870         memcpy(&src_addr, phdr->h_source, ETH_ALEN);
1871         hindex = QLCNIC_MAC_HASH(src_addr) & (QLCNIC_LB_MAX_FILTERS - 1);
1872         head = &(adapter->fhash.fhead[hindex]);
1873
1874         hlist_for_each_entry_safe(tmp_fil, tmp_hnode, n, head, fnode) {
1875                 if (!memcmp(tmp_fil->faddr, &src_addr, ETH_ALEN) &&
1876                             tmp_fil->vlan_id == vlan_id) {
1877
1878                         if (jiffies >
1879                             (QLCNIC_READD_AGE * HZ + tmp_fil->ftime))
1880                                 qlcnic_change_filter(adapter, src_addr, vlan_id,
1881                                                                 tx_ring);
1882                         tmp_fil->ftime = jiffies;
1883                         return;
1884                 }
1885         }
1886
1887         fil = kzalloc(sizeof(struct qlcnic_filter), GFP_ATOMIC);
1888         if (!fil)
1889                 return;
1890
1891         qlcnic_change_filter(adapter, src_addr, vlan_id, tx_ring);
1892
1893         fil->ftime = jiffies;
1894         fil->vlan_id = vlan_id;
1895         memcpy(fil->faddr, &src_addr, ETH_ALEN);
1896         spin_lock(&adapter->mac_learn_lock);
1897         hlist_add_head(&(fil->fnode), head);
1898         adapter->fhash.fnum++;
1899         spin_unlock(&adapter->mac_learn_lock);
1900 }
1901
1902 static void
1903 qlcnic_tso_check(struct net_device *netdev,
1904                 struct qlcnic_host_tx_ring *tx_ring,
1905                 struct cmd_desc_type0 *first_desc,
1906                 struct sk_buff *skb)
1907 {
1908         u8 opcode = TX_ETHER_PKT;
1909         __be16 protocol = skb->protocol;
1910         u16 flags = 0;
1911         int copied, offset, copy_len, hdr_len = 0, tso = 0;
1912         struct cmd_desc_type0 *hwdesc;
1913         struct vlan_ethhdr *vh;
1914         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1915         u32 producer = tx_ring->producer;
1916         __le16 vlan_oob = first_desc->flags_opcode &
1917                                 cpu_to_le16(FLAGS_VLAN_OOB);
1918
1919         if (*(skb->data) & BIT_0) {
1920                 flags |= BIT_0;
1921                 memcpy(&first_desc->eth_addr, skb->data, ETH_ALEN);
1922         }
1923
1924         if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1925                         skb_shinfo(skb)->gso_size > 0) {
1926
1927                 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1928
1929                 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1930                 first_desc->total_hdr_length = hdr_len;
1931                 if (vlan_oob) {
1932                         first_desc->total_hdr_length += VLAN_HLEN;
1933                         first_desc->tcp_hdr_offset = VLAN_HLEN;
1934                         first_desc->ip_hdr_offset = VLAN_HLEN;
1935                         /* Only in case of TSO on vlan device */
1936                         flags |= FLAGS_VLAN_TAGGED;
1937                 }
1938
1939                 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1940                                 TX_TCP_LSO6 : TX_TCP_LSO;
1941                 tso = 1;
1942
1943         } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1944                 u8 l4proto;
1945
1946                 if (protocol == cpu_to_be16(ETH_P_IP)) {
1947                         l4proto = ip_hdr(skb)->protocol;
1948
1949                         if (l4proto == IPPROTO_TCP)
1950                                 opcode = TX_TCP_PKT;
1951                         else if (l4proto == IPPROTO_UDP)
1952                                 opcode = TX_UDP_PKT;
1953                 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1954                         l4proto = ipv6_hdr(skb)->nexthdr;
1955
1956                         if (l4proto == IPPROTO_TCP)
1957                                 opcode = TX_TCPV6_PKT;
1958                         else if (l4proto == IPPROTO_UDP)
1959                                 opcode = TX_UDPV6_PKT;
1960                 }
1961         }
1962
1963         first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1964         first_desc->ip_hdr_offset += skb_network_offset(skb);
1965         qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
1966
1967         if (!tso)
1968                 return;
1969
1970         /* For LSO, we need to copy the MAC/IP/TCP headers into
1971          * the descriptor ring
1972          */
1973         copied = 0;
1974         offset = 2;
1975
1976         if (vlan_oob) {
1977                 /* Create a TSO vlan header template for firmware */
1978
1979                 hwdesc = &tx_ring->desc_head[producer];
1980                 tx_ring->cmd_buf_arr[producer].skb = NULL;
1981
1982                 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1983                                 hdr_len + VLAN_HLEN);
1984
1985                 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1986                 skb_copy_from_linear_data(skb, vh, 12);
1987                 vh->h_vlan_proto = htons(ETH_P_8021Q);
1988                 vh->h_vlan_TCI = (__be16)swab16((u16)first_desc->vlan_TCI);
1989
1990                 skb_copy_from_linear_data_offset(skb, 12,
1991                                 (char *)vh + 16, copy_len - 16);
1992
1993                 copied = copy_len - VLAN_HLEN;
1994                 offset = 0;
1995
1996                 producer = get_next_index(producer, tx_ring->num_desc);
1997         }
1998
1999         while (copied < hdr_len) {
2000
2001                 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
2002                                 (hdr_len - copied));
2003
2004                 hwdesc = &tx_ring->desc_head[producer];
2005                 tx_ring->cmd_buf_arr[producer].skb = NULL;
2006
2007                 skb_copy_from_linear_data_offset(skb, copied,
2008                                  (char *)hwdesc + offset, copy_len);
2009
2010                 copied += copy_len;
2011                 offset = 0;
2012
2013                 producer = get_next_index(producer, tx_ring->num_desc);
2014         }
2015
2016         tx_ring->producer = producer;
2017         barrier();
2018         adapter->stats.lso_frames++;
2019 }
2020
2021 static int
2022 qlcnic_map_tx_skb(struct pci_dev *pdev,
2023                 struct sk_buff *skb, struct qlcnic_cmd_buffer *pbuf)
2024 {
2025         struct qlcnic_skb_frag *nf;
2026         struct skb_frag_struct *frag;
2027         int i, nr_frags;
2028         dma_addr_t map;
2029
2030         nr_frags = skb_shinfo(skb)->nr_frags;
2031         nf = &pbuf->frag_array[0];
2032
2033         map = pci_map_single(pdev, skb->data,
2034                         skb_headlen(skb), PCI_DMA_TODEVICE);
2035         if (pci_dma_mapping_error(pdev, map))
2036                 goto out_err;
2037
2038         nf->dma = map;
2039         nf->length = skb_headlen(skb);
2040
2041         for (i = 0; i < nr_frags; i++) {
2042                 frag = &skb_shinfo(skb)->frags[i];
2043                 nf = &pbuf->frag_array[i+1];
2044
2045                 map = pci_map_page(pdev, frag->page, frag->page_offset,
2046                                 frag->size, PCI_DMA_TODEVICE);
2047                 if (pci_dma_mapping_error(pdev, map))
2048                         goto unwind;
2049
2050                 nf->dma = map;
2051                 nf->length = frag->size;
2052         }
2053
2054         return 0;
2055
2056 unwind:
2057         while (--i >= 0) {
2058                 nf = &pbuf->frag_array[i+1];
2059                 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
2060         }
2061
2062         nf = &pbuf->frag_array[0];
2063         pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
2064
2065 out_err:
2066         return -ENOMEM;
2067 }
2068
2069 static int
2070 qlcnic_check_tx_tagging(struct qlcnic_adapter *adapter,
2071                         struct sk_buff *skb,
2072                         struct cmd_desc_type0 *first_desc)
2073 {
2074         u8 opcode = 0;
2075         u16 flags = 0;
2076         __be16 protocol = skb->protocol;
2077         struct vlan_ethhdr *vh;
2078
2079         if (protocol == cpu_to_be16(ETH_P_8021Q)) {
2080                 vh = (struct vlan_ethhdr *)skb->data;
2081                 protocol = vh->h_vlan_encapsulated_proto;
2082                 flags = FLAGS_VLAN_TAGGED;
2083                 qlcnic_set_tx_vlan_tci(first_desc, ntohs(vh->h_vlan_TCI));
2084         } else if (vlan_tx_tag_present(skb)) {
2085                 flags = FLAGS_VLAN_OOB;
2086                 qlcnic_set_tx_vlan_tci(first_desc, vlan_tx_tag_get(skb));
2087         }
2088         if (unlikely(adapter->pvid)) {
2089                 if (first_desc->vlan_TCI &&
2090                                 !(adapter->flags & QLCNIC_TAGGING_ENABLED))
2091                         return -EIO;
2092                 if (first_desc->vlan_TCI &&
2093                                 (adapter->flags & QLCNIC_TAGGING_ENABLED))
2094                         goto set_flags;
2095
2096                 flags = FLAGS_VLAN_OOB;
2097                 qlcnic_set_tx_vlan_tci(first_desc, adapter->pvid);
2098         }
2099 set_flags:
2100         qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
2101         return 0;
2102 }
2103
2104 static inline void
2105 qlcnic_clear_cmddesc(u64 *desc)
2106 {
2107         desc[0] = 0ULL;
2108         desc[2] = 0ULL;
2109         desc[7] = 0ULL;
2110 }
2111
2112 netdev_tx_t
2113 qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
2114 {
2115         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2116         struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
2117         struct qlcnic_cmd_buffer *pbuf;
2118         struct qlcnic_skb_frag *buffrag;
2119         struct cmd_desc_type0 *hwdesc, *first_desc;
2120         struct pci_dev *pdev;
2121         struct ethhdr *phdr;
2122         int i, k;
2123
2124         u32 producer;
2125         int frag_count, no_of_desc;
2126         u32 num_txd = tx_ring->num_desc;
2127
2128         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
2129                 netif_stop_queue(netdev);
2130                 return NETDEV_TX_BUSY;
2131         }
2132
2133         if (adapter->flags & QLCNIC_MACSPOOF) {
2134                 phdr = (struct ethhdr *)skb->data;
2135                 if (compare_ether_addr(phdr->h_source,
2136                                         adapter->mac_addr))
2137                         goto drop_packet;
2138         }
2139
2140         frag_count = skb_shinfo(skb)->nr_frags + 1;
2141
2142         /* 4 fragments per cmd des */
2143         no_of_desc = (frag_count + 3) >> 2;
2144
2145         if (unlikely(qlcnic_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
2146                 netif_stop_queue(netdev);
2147                 smp_mb();
2148                 if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH)
2149                         netif_start_queue(netdev);
2150                 else {
2151                         adapter->stats.xmit_off++;
2152                         return NETDEV_TX_BUSY;
2153                 }
2154         }
2155
2156         producer = tx_ring->producer;
2157         pbuf = &tx_ring->cmd_buf_arr[producer];
2158
2159         pdev = adapter->pdev;
2160
2161         first_desc = hwdesc = &tx_ring->desc_head[producer];
2162         qlcnic_clear_cmddesc((u64 *)hwdesc);
2163
2164         if (qlcnic_check_tx_tagging(adapter, skb, first_desc))
2165                 goto drop_packet;
2166
2167         if (qlcnic_map_tx_skb(pdev, skb, pbuf)) {
2168                 adapter->stats.tx_dma_map_error++;
2169                 goto drop_packet;
2170         }
2171
2172         pbuf->skb = skb;
2173         pbuf->frag_count = frag_count;
2174
2175         qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len);
2176         qlcnic_set_tx_port(first_desc, adapter->portnum);
2177
2178         for (i = 0; i < frag_count; i++) {
2179
2180                 k = i % 4;
2181
2182                 if ((k == 0) && (i > 0)) {
2183                         /* move to next desc.*/
2184                         producer = get_next_index(producer, num_txd);
2185                         hwdesc = &tx_ring->desc_head[producer];
2186                         qlcnic_clear_cmddesc((u64 *)hwdesc);
2187                         tx_ring->cmd_buf_arr[producer].skb = NULL;
2188                 }
2189
2190                 buffrag = &pbuf->frag_array[i];
2191
2192                 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
2193                 switch (k) {
2194                 case 0:
2195                         hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
2196                         break;
2197                 case 1:
2198                         hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
2199                         break;
2200                 case 2:
2201                         hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
2202                         break;
2203                 case 3:
2204                         hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
2205                         break;
2206                 }
2207         }
2208
2209         tx_ring->producer = get_next_index(producer, num_txd);
2210
2211         qlcnic_tso_check(netdev, tx_ring, first_desc, skb);
2212
2213         if (qlcnic_mac_learn)
2214                 qlcnic_send_filter(adapter, tx_ring, first_desc, skb);
2215
2216         qlcnic_update_cmd_producer(adapter, tx_ring);
2217
2218         adapter->stats.txbytes += skb->len;
2219         adapter->stats.xmitcalled++;
2220
2221         return NETDEV_TX_OK;
2222
2223 drop_packet:
2224         adapter->stats.txdropped++;
2225         dev_kfree_skb_any(skb);
2226         return NETDEV_TX_OK;
2227 }
2228
2229 static int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2230 {
2231         struct net_device *netdev = adapter->netdev;
2232         u32 temp, temp_state, temp_val;
2233         int rv = 0;
2234
2235         temp = QLCRD32(adapter, CRB_TEMP_STATE);
2236
2237         temp_state = qlcnic_get_temp_state(temp);
2238         temp_val = qlcnic_get_temp_val(temp);
2239
2240         if (temp_state == QLCNIC_TEMP_PANIC) {
2241                 dev_err(&netdev->dev,
2242                        "Device temperature %d degrees C exceeds"
2243                        " maximum allowed. Hardware has been shut down.\n",
2244                        temp_val);
2245                 rv = 1;
2246         } else if (temp_state == QLCNIC_TEMP_WARN) {
2247                 if (adapter->temp == QLCNIC_TEMP_NORMAL) {
2248                         dev_err(&netdev->dev,
2249                                "Device temperature %d degrees C "
2250                                "exceeds operating range."
2251                                " Immediate action needed.\n",
2252                                temp_val);
2253                 }
2254         } else {
2255                 if (adapter->temp == QLCNIC_TEMP_WARN) {
2256                         dev_info(&netdev->dev,
2257                                "Device temperature is now %d degrees C"
2258                                " in normal range.\n", temp_val);
2259                 }
2260         }
2261         adapter->temp = temp_state;
2262         return rv;
2263 }
2264
2265 void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup)
2266 {
2267         struct net_device *netdev = adapter->netdev;
2268
2269         if (adapter->ahw.linkup && !linkup) {
2270                 netdev_info(netdev, "NIC Link is down\n");
2271                 adapter->ahw.linkup = 0;
2272                 if (netif_running(netdev)) {
2273                         netif_carrier_off(netdev);
2274                         netif_stop_queue(netdev);
2275                 }
2276         } else if (!adapter->ahw.linkup && linkup) {
2277                 netdev_info(netdev, "NIC Link is up\n");
2278                 adapter->ahw.linkup = 1;
2279                 if (netif_running(netdev)) {
2280                         netif_carrier_on(netdev);
2281                         netif_wake_queue(netdev);
2282                 }
2283         }
2284 }
2285
2286 static void qlcnic_tx_timeout(struct net_device *netdev)
2287 {
2288         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2289
2290         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2291                 return;
2292
2293         dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2294
2295         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
2296                 adapter->need_fw_reset = 1;
2297         else
2298                 adapter->reset_context = 1;
2299 }
2300
2301 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2302 {
2303         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2304         struct net_device_stats *stats = &netdev->stats;
2305
2306         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2307         stats->tx_packets = adapter->stats.xmitfinished;
2308         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2309         stats->tx_bytes = adapter->stats.txbytes;
2310         stats->rx_dropped = adapter->stats.rxdropped;
2311         stats->tx_dropped = adapter->stats.txdropped;
2312
2313         return stats;
2314 }
2315
2316 static irqreturn_t qlcnic_clear_legacy_intr(struct qlcnic_adapter *adapter)
2317 {
2318         u32 status;
2319
2320         status = readl(adapter->isr_int_vec);
2321
2322         if (!(status & adapter->int_vec_bit))
2323                 return IRQ_NONE;
2324
2325         /* check interrupt state machine, to be sure */
2326         status = readl(adapter->crb_int_state_reg);
2327         if (!ISR_LEGACY_INT_TRIGGERED(status))
2328                 return IRQ_NONE;
2329
2330         writel(0xffffffff, adapter->tgt_status_reg);
2331         /* read twice to ensure write is flushed */
2332         readl(adapter->isr_int_vec);
2333         readl(adapter->isr_int_vec);
2334
2335         return IRQ_HANDLED;
2336 }
2337
2338 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2339 {
2340         struct qlcnic_host_sds_ring *sds_ring = data;
2341         struct qlcnic_adapter *adapter = sds_ring->adapter;
2342
2343         if (adapter->flags & QLCNIC_MSIX_ENABLED)
2344                 goto done;
2345         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2346                 writel(0xffffffff, adapter->tgt_status_reg);
2347                 goto done;
2348         }
2349
2350         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2351                 return IRQ_NONE;
2352
2353 done:
2354         adapter->diag_cnt++;
2355         qlcnic_enable_int(sds_ring);
2356         return IRQ_HANDLED;
2357 }
2358
2359 static irqreturn_t qlcnic_intr(int irq, void *data)
2360 {
2361         struct qlcnic_host_sds_ring *sds_ring = data;
2362         struct qlcnic_adapter *adapter = sds_ring->adapter;
2363
2364         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2365                 return IRQ_NONE;
2366
2367         napi_schedule(&sds_ring->napi);
2368
2369         return IRQ_HANDLED;
2370 }
2371
2372 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2373 {
2374         struct qlcnic_host_sds_ring *sds_ring = data;
2375         struct qlcnic_adapter *adapter = sds_ring->adapter;
2376
2377         /* clear interrupt */
2378         writel(0xffffffff, adapter->tgt_status_reg);
2379
2380         napi_schedule(&sds_ring->napi);
2381         return IRQ_HANDLED;
2382 }
2383
2384 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2385 {
2386         struct qlcnic_host_sds_ring *sds_ring = data;
2387
2388         napi_schedule(&sds_ring->napi);
2389         return IRQ_HANDLED;
2390 }
2391
2392 static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter)
2393 {
2394         u32 sw_consumer, hw_consumer;
2395         int count = 0, i;
2396         struct qlcnic_cmd_buffer *buffer;
2397         struct pci_dev *pdev = adapter->pdev;
2398         struct net_device *netdev = adapter->netdev;
2399         struct qlcnic_skb_frag *frag;
2400         int done;
2401         struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
2402
2403         if (!spin_trylock(&adapter->tx_clean_lock))
2404                 return 1;
2405
2406         sw_consumer = tx_ring->sw_consumer;
2407         hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
2408
2409         while (sw_consumer != hw_consumer) {
2410                 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
2411                 if (buffer->skb) {
2412                         frag = &buffer->frag_array[0];
2413                         pci_unmap_single(pdev, frag->dma, frag->length,
2414                                          PCI_DMA_TODEVICE);
2415                         frag->dma = 0ULL;
2416                         for (i = 1; i < buffer->frag_count; i++) {
2417                                 frag++;
2418                                 pci_unmap_page(pdev, frag->dma, frag->length,
2419                                                PCI_DMA_TODEVICE);
2420                                 frag->dma = 0ULL;
2421                         }
2422
2423                         adapter->stats.xmitfinished++;
2424                         dev_kfree_skb_any(buffer->skb);
2425                         buffer->skb = NULL;
2426                 }
2427
2428                 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
2429                 if (++count >= MAX_STATUS_HANDLE)
2430                         break;
2431         }
2432
2433         if (count && netif_running(netdev)) {
2434                 tx_ring->sw_consumer = sw_consumer;
2435
2436                 smp_mb();
2437
2438                 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
2439                         if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) {
2440                                 netif_wake_queue(netdev);
2441                                 adapter->stats.xmit_on++;
2442                         }
2443                 }
2444                 adapter->tx_timeo_cnt = 0;
2445         }
2446         /*
2447          * If everything is freed up to consumer then check if the ring is full
2448          * If the ring is full then check if more needs to be freed and
2449          * schedule the call back again.
2450          *
2451          * This happens when there are 2 CPUs. One could be freeing and the
2452          * other filling it. If the ring is full when we get out of here and
2453          * the card has already interrupted the host then the host can miss the
2454          * interrupt.
2455          *
2456          * There is still a possible race condition and the host could miss an
2457          * interrupt. The card has to take care of this.
2458          */
2459         hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
2460         done = (sw_consumer == hw_consumer);
2461         spin_unlock(&adapter->tx_clean_lock);
2462
2463         return done;
2464 }
2465
2466 static int qlcnic_poll(struct napi_struct *napi, int budget)
2467 {
2468         struct qlcnic_host_sds_ring *sds_ring =
2469                 container_of(napi, struct qlcnic_host_sds_ring, napi);
2470
2471         struct qlcnic_adapter *adapter = sds_ring->adapter;
2472
2473         int tx_complete;
2474         int work_done;
2475
2476         tx_complete = qlcnic_process_cmd_ring(adapter);
2477
2478         work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2479
2480         if ((work_done < budget) && tx_complete) {
2481                 napi_complete(&sds_ring->napi);
2482                 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2483                         qlcnic_enable_int(sds_ring);
2484         }
2485
2486         return work_done;
2487 }
2488
2489 static int qlcnic_rx_poll(struct napi_struct *napi, int budget)
2490 {
2491         struct qlcnic_host_sds_ring *sds_ring =
2492                 container_of(napi, struct qlcnic_host_sds_ring, napi);
2493
2494         struct qlcnic_adapter *adapter = sds_ring->adapter;
2495         int work_done;
2496
2497         work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2498
2499         if (work_done < budget) {
2500                 napi_complete(&sds_ring->napi);
2501                 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2502                         qlcnic_enable_int(sds_ring);
2503         }
2504
2505         return work_done;
2506 }
2507
2508 #ifdef CONFIG_NET_POLL_CONTROLLER
2509 static void qlcnic_poll_controller(struct net_device *netdev)
2510 {
2511         int ring;
2512         struct qlcnic_host_sds_ring *sds_ring;
2513         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2514         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
2515
2516         disable_irq(adapter->irq);
2517         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2518                 sds_ring = &recv_ctx->sds_rings[ring];
2519                 qlcnic_intr(adapter->irq, sds_ring);
2520         }
2521         enable_irq(adapter->irq);
2522 }
2523 #endif
2524
2525 static void
2526 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2527 {
2528         u32 val;
2529
2530         val = adapter->portnum & 0xf;
2531         val |= encoding << 7;
2532         val |= (jiffies - adapter->dev_rst_time) << 8;
2533
2534         QLCWR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2535         adapter->dev_rst_time = jiffies;
2536 }
2537
2538 static int
2539 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2540 {
2541         u32  val;
2542
2543         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2544                         state != QLCNIC_DEV_NEED_QUISCENT);
2545
2546         if (qlcnic_api_lock(adapter))
2547                 return -EIO;
2548
2549         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2550
2551         if (state == QLCNIC_DEV_NEED_RESET)
2552                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2553         else if (state == QLCNIC_DEV_NEED_QUISCENT)
2554                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2555
2556         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2557
2558         qlcnic_api_unlock(adapter);
2559
2560         return 0;
2561 }
2562
2563 static int
2564 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2565 {
2566         u32  val;
2567
2568         if (qlcnic_api_lock(adapter))
2569                 return -EBUSY;
2570
2571         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2572         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2573         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2574
2575         qlcnic_api_unlock(adapter);
2576
2577         return 0;
2578 }
2579
2580 static void
2581 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2582 {
2583         u32  val;
2584
2585         if (qlcnic_api_lock(adapter))
2586                 goto err;
2587
2588         val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2589         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2590         QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2591
2592         if (failed) {
2593                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
2594                 dev_info(&adapter->pdev->dev,
2595                                 "Device state set to Failed. Please Reboot\n");
2596         } else if (!(val & 0x11111111))
2597                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_COLD);
2598
2599         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2600         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2601         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2602
2603         qlcnic_api_unlock(adapter);
2604 err:
2605         adapter->fw_fail_cnt = 0;
2606         clear_bit(__QLCNIC_START_FW, &adapter->state);
2607         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2608 }
2609
2610 /* Grab api lock, before checking state */
2611 static int
2612 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2613 {
2614         int act, state;
2615
2616         state = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2617         act = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2618
2619         if (((state & 0x11111111) == (act & 0x11111111)) ||
2620                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2621                 return 0;
2622         else
2623                 return 1;
2624 }
2625
2626 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2627 {
2628         u32 val = QLCRD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2629
2630         if (val != QLCNIC_DRV_IDC_VER) {
2631                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2632                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2633         }
2634
2635         return 0;
2636 }
2637
2638 static int
2639 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2640 {
2641         u32 val, prev_state;
2642         u8 dev_init_timeo = adapter->dev_init_timeo;
2643         u8 portnum = adapter->portnum;
2644         u8 ret;
2645
2646         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2647                 return 1;
2648
2649         if (qlcnic_api_lock(adapter))
2650                 return -1;
2651
2652         val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2653         if (!(val & (1 << (portnum * 4)))) {
2654                 QLC_DEV_SET_REF_CNT(val, portnum);
2655                 QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2656         }
2657
2658         prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2659         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2660
2661         switch (prev_state) {
2662         case QLCNIC_DEV_COLD:
2663                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
2664                 QLCWR32(adapter, QLCNIC_CRB_DRV_IDC_VER, QLCNIC_DRV_IDC_VER);
2665                 qlcnic_idc_debug_info(adapter, 0);
2666                 qlcnic_api_unlock(adapter);
2667                 return 1;
2668
2669         case QLCNIC_DEV_READY:
2670                 ret = qlcnic_check_idc_ver(adapter);
2671                 qlcnic_api_unlock(adapter);
2672                 return ret;
2673
2674         case QLCNIC_DEV_NEED_RESET:
2675                 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2676                 QLC_DEV_SET_RST_RDY(val, portnum);
2677                 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2678                 break;
2679
2680         case QLCNIC_DEV_NEED_QUISCENT:
2681                 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2682                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
2683                 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2684                 break;
2685
2686         case QLCNIC_DEV_FAILED:
2687                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
2688                 qlcnic_api_unlock(adapter);
2689                 return -1;
2690
2691         case QLCNIC_DEV_INITIALIZING:
2692         case QLCNIC_DEV_QUISCENT:
2693                 break;
2694         }
2695
2696         qlcnic_api_unlock(adapter);
2697
2698         do {
2699                 msleep(1000);
2700                 prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2701
2702                 if (prev_state == QLCNIC_DEV_QUISCENT)
2703                         continue;
2704         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
2705
2706         if (!dev_init_timeo) {
2707                 dev_err(&adapter->pdev->dev,
2708                         "Waiting for device to initialize timeout\n");
2709                 return -1;
2710         }
2711
2712         if (qlcnic_api_lock(adapter))
2713                 return -1;
2714
2715         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2716         QLC_DEV_CLR_RST_QSCNT(val, portnum);
2717         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2718
2719         ret = qlcnic_check_idc_ver(adapter);
2720         qlcnic_api_unlock(adapter);
2721
2722         return ret;
2723 }
2724
2725 static void
2726 qlcnic_fwinit_work(struct work_struct *work)
2727 {
2728         struct qlcnic_adapter *adapter = container_of(work,
2729                         struct qlcnic_adapter, fw_work.work);
2730         u32 dev_state = 0xf;
2731
2732         if (qlcnic_api_lock(adapter))
2733                 goto err_ret;
2734
2735         dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2736         if (dev_state == QLCNIC_DEV_QUISCENT ||
2737             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2738                 qlcnic_api_unlock(adapter);
2739                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2740                                                 FW_POLL_DELAY * 2);
2741                 return;
2742         }
2743
2744         if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC) {
2745                 qlcnic_api_unlock(adapter);
2746                 goto wait_npar;
2747         }
2748
2749         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2750                 dev_err(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2751                                         adapter->reset_ack_timeo);
2752                 goto skip_ack_check;
2753         }
2754
2755         if (!qlcnic_check_drv_state(adapter)) {
2756 skip_ack_check:
2757                 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2758
2759                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2760                         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE,
2761                                                 QLCNIC_DEV_INITIALIZING);
2762                         set_bit(__QLCNIC_START_FW, &adapter->state);
2763                         QLCDB(adapter, DRV, "Restarting fw\n");
2764                         qlcnic_idc_debug_info(adapter, 0);
2765                 }
2766
2767                 qlcnic_api_unlock(adapter);
2768
2769                 if (!adapter->nic_ops->start_firmware(adapter)) {
2770                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2771                         adapter->fw_wait_cnt = 0;
2772                         return;
2773                 }
2774                 goto err_ret;
2775         }
2776
2777         qlcnic_api_unlock(adapter);
2778
2779 wait_npar:
2780         dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2781         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
2782
2783         switch (dev_state) {
2784         case QLCNIC_DEV_READY:
2785                 if (!adapter->nic_ops->start_firmware(adapter)) {
2786                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2787                         adapter->fw_wait_cnt = 0;
2788                         return;
2789                 }
2790         case QLCNIC_DEV_FAILED:
2791                 break;
2792         default:
2793                 qlcnic_schedule_work(adapter,
2794                         qlcnic_fwinit_work, FW_POLL_DELAY);
2795                 return;
2796         }
2797
2798 err_ret:
2799         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2800                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
2801         netif_device_attach(adapter->netdev);
2802         qlcnic_clr_all_drv_state(adapter, 0);
2803 }
2804
2805 static void
2806 qlcnic_detach_work(struct work_struct *work)
2807 {
2808         struct qlcnic_adapter *adapter = container_of(work,
2809                         struct qlcnic_adapter, fw_work.work);
2810         struct net_device *netdev = adapter->netdev;
2811         u32 status;
2812
2813         netif_device_detach(netdev);
2814
2815         /* Dont grab rtnl lock during Quiscent mode */
2816         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2817                 if (netif_running(netdev))
2818                         __qlcnic_down(adapter, netdev);
2819         } else
2820                 qlcnic_down(adapter, netdev);
2821
2822         status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2823
2824         if (status & QLCNIC_RCODE_FATAL_ERROR)
2825                 goto err_ret;
2826
2827         if (adapter->temp == QLCNIC_TEMP_PANIC)
2828                 goto err_ret;
2829
2830         if (qlcnic_set_drv_state(adapter, adapter->dev_state))
2831                 goto err_ret;
2832
2833         adapter->fw_wait_cnt = 0;
2834
2835         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2836
2837         return;
2838
2839 err_ret:
2840         dev_err(&adapter->pdev->dev, "detach failed; status=%d temp=%d\n",
2841                         status, adapter->temp);
2842         netif_device_attach(netdev);
2843         qlcnic_clr_all_drv_state(adapter, 1);
2844 }
2845
2846 /*Transit NPAR state to NON Operational */
2847 static void
2848 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
2849 {
2850         u32 state;
2851
2852         state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2853         if (state == QLCNIC_DEV_NPAR_NON_OPER)
2854                 return;
2855
2856         if (qlcnic_api_lock(adapter))
2857                 return;
2858         QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
2859         qlcnic_api_unlock(adapter);
2860 }
2861
2862 /* Caller should held RESETTING bit.
2863  * This should be call in sync with qlcnic_request_quiscent_mode.
2864  */
2865 void qlcnic_clear_quiscent_mode(struct qlcnic_adapter *adapter)
2866 {
2867         qlcnic_clr_drv_state(adapter);
2868         qlcnic_api_lock(adapter);
2869         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
2870         qlcnic_api_unlock(adapter);
2871 }
2872
2873 /* Caller should held RESETTING bit.
2874  */
2875 int qlcnic_request_quiscent_mode(struct qlcnic_adapter *adapter)
2876 {
2877         u8 timeo = adapter->dev_init_timeo / 2;
2878         u32 state;
2879
2880         if (qlcnic_api_lock(adapter))
2881                 return -EIO;
2882
2883         state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2884         if (state != QLCNIC_DEV_READY)
2885                 return -EIO;
2886
2887         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_QUISCENT);
2888         qlcnic_api_unlock(adapter);
2889         QLCDB(adapter, DRV, "NEED QUISCENT state set\n");
2890         qlcnic_idc_debug_info(adapter, 0);
2891
2892         qlcnic_set_drv_state(adapter, QLCNIC_DEV_NEED_QUISCENT);
2893
2894         do {
2895                 msleep(2000);
2896                 state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2897                 if (state == QLCNIC_DEV_QUISCENT)
2898                         return 0;
2899                 if (!qlcnic_check_drv_state(adapter)) {
2900                         if (qlcnic_api_lock(adapter))
2901                                 return -EIO;
2902                         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE,
2903                                                         QLCNIC_DEV_QUISCENT);
2904                         qlcnic_api_unlock(adapter);
2905                         QLCDB(adapter, DRV, "QUISCENT mode set\n");
2906                         return 0;
2907                 }
2908         } while (--timeo);
2909
2910         dev_err(&adapter->pdev->dev, "Failed to quiesce device, DRV_STATE=%08x"
2911                 " DRV_ACTIVE=%08x\n", QLCRD32(adapter, QLCNIC_CRB_DRV_STATE),
2912                 QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE));
2913         qlcnic_clear_quiscent_mode(adapter);
2914         return -EIO;
2915 }
2916
2917 /*Transit to RESET state from READY state only */
2918 static void
2919 qlcnic_dev_request_reset(struct qlcnic_adapter *adapter)
2920 {
2921         u32 state;
2922
2923         adapter->need_fw_reset = 1;
2924         if (qlcnic_api_lock(adapter))
2925                 return;
2926
2927         state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2928
2929         if (state == QLCNIC_DEV_READY) {
2930                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_RESET);
2931                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
2932                 qlcnic_idc_debug_info(adapter, 0);
2933         }
2934
2935         QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
2936         qlcnic_api_unlock(adapter);
2937 }
2938
2939 /* Transit to NPAR READY state from NPAR NOT READY state */
2940 static void
2941 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
2942 {
2943         if (qlcnic_api_lock(adapter))
2944                 return;
2945
2946         QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_OPER);
2947         QLCDB(adapter, DRV, "NPAR operational state set\n");
2948
2949         qlcnic_api_unlock(adapter);
2950 }
2951
2952 static void
2953 qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2954                 work_func_t func, int delay)
2955 {
2956         if (test_bit(__QLCNIC_AER, &adapter->state))
2957                 return;
2958
2959         INIT_DELAYED_WORK(&adapter->fw_work, func);
2960         queue_delayed_work(qlcnic_wq, &adapter->fw_work,
2961                                         round_jiffies_relative(delay));
2962 }
2963
2964 static void
2965 qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter)
2966 {
2967         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2968                 msleep(10);
2969
2970         cancel_delayed_work_sync(&adapter->fw_work);
2971 }
2972
2973 static void
2974 qlcnic_attach_work(struct work_struct *work)
2975 {
2976         struct qlcnic_adapter *adapter = container_of(work,
2977                                 struct qlcnic_adapter, fw_work.work);
2978         struct net_device *netdev = adapter->netdev;
2979         u32 npar_state;
2980
2981         if (adapter->op_mode != QLCNIC_MGMT_FUNC) {
2982                 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2983                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
2984                         qlcnic_clr_all_drv_state(adapter, 0);
2985                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
2986                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
2987                                                         FW_POLL_DELAY);
2988                 else
2989                         goto attach;
2990                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
2991                 return;
2992         }
2993 attach:
2994         if (netif_running(netdev)) {
2995                 if (qlcnic_up(adapter, netdev))
2996                         goto done;
2997
2998                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2999         }
3000
3001 done:
3002         netif_device_attach(netdev);
3003         adapter->fw_fail_cnt = 0;
3004         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3005
3006         if (!qlcnic_clr_drv_state(adapter))
3007                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3008                                                         FW_POLL_DELAY);
3009 }
3010
3011 static int
3012 qlcnic_check_health(struct qlcnic_adapter *adapter)
3013 {
3014         u32 state = 0, heartbeat;
3015         struct net_device *netdev = adapter->netdev;
3016
3017         if (qlcnic_check_temp(adapter))
3018                 goto detach;
3019
3020         if (adapter->need_fw_reset)
3021                 qlcnic_dev_request_reset(adapter);
3022
3023         state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
3024         if (state == QLCNIC_DEV_NEED_RESET) {
3025                 qlcnic_set_npar_non_operational(adapter);
3026                 adapter->need_fw_reset = 1;
3027         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3028                 goto detach;
3029
3030         heartbeat = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3031         if (heartbeat != adapter->heartbeat) {
3032                 adapter->heartbeat = heartbeat;
3033                 adapter->fw_fail_cnt = 0;
3034                 if (adapter->need_fw_reset)
3035                         goto detach;
3036
3037                 if (adapter->reset_context &&
3038                     auto_fw_reset == AUTO_FW_RESET_ENABLED) {
3039                         qlcnic_reset_hw_context(adapter);
3040                         adapter->netdev->trans_start = jiffies;
3041                 }
3042
3043                 return 0;
3044         }
3045
3046         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3047                 return 0;
3048
3049         qlcnic_dev_request_reset(adapter);
3050
3051         if ((auto_fw_reset == AUTO_FW_RESET_ENABLED))
3052                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3053
3054         dev_info(&netdev->dev, "firmware hang detected\n");
3055
3056 detach:
3057         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3058                 QLCNIC_DEV_NEED_RESET;
3059
3060         if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
3061                 !test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) {
3062
3063                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3064                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3065         }
3066
3067         return 1;
3068 }
3069
3070 static void
3071 qlcnic_fw_poll_work(struct work_struct *work)
3072 {
3073         struct qlcnic_adapter *adapter = container_of(work,
3074                                 struct qlcnic_adapter, fw_work.work);
3075
3076         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3077                 goto reschedule;
3078
3079
3080         if (qlcnic_check_health(adapter))
3081                 return;
3082
3083         if (adapter->fhash.fnum)
3084                 qlcnic_prune_lb_filters(adapter);
3085
3086 reschedule:
3087         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3088 }
3089
3090 static int qlcnic_is_first_func(struct pci_dev *pdev)
3091 {
3092         struct pci_dev *oth_pdev;
3093         int val = pdev->devfn;
3094
3095         while (val-- > 0) {
3096                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3097                         (pdev->bus), pdev->bus->number,
3098                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3099                 if (!oth_pdev)
3100                         continue;
3101
3102                 if (oth_pdev->current_state != PCI_D3cold) {
3103                         pci_dev_put(oth_pdev);
3104                         return 0;
3105                 }
3106                 pci_dev_put(oth_pdev);
3107         }
3108         return 1;
3109 }
3110
3111 static int qlcnic_attach_func(struct pci_dev *pdev)
3112 {
3113         int err, first_func;
3114         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3115         struct net_device *netdev = adapter->netdev;
3116
3117         pdev->error_state = pci_channel_io_normal;
3118
3119         err = pci_enable_device(pdev);
3120         if (err)
3121                 return err;
3122
3123         pci_set_power_state(pdev, PCI_D0);
3124         pci_set_master(pdev);
3125         pci_restore_state(pdev);
3126
3127         first_func = qlcnic_is_first_func(pdev);
3128
3129         if (qlcnic_api_lock(adapter))
3130                 return -EINVAL;
3131
3132         if (adapter->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3133                 adapter->need_fw_reset = 1;
3134                 set_bit(__QLCNIC_START_FW, &adapter->state);
3135                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
3136                 QLCDB(adapter, DRV, "Restarting fw\n");
3137         }
3138         qlcnic_api_unlock(adapter);
3139
3140         err = adapter->nic_ops->start_firmware(adapter);
3141         if (err)
3142                 return err;
3143
3144         qlcnic_clr_drv_state(adapter);
3145         qlcnic_setup_intr(adapter);
3146
3147         if (netif_running(netdev)) {
3148                 err = qlcnic_attach(adapter);
3149                 if (err) {
3150                         qlcnic_clr_all_drv_state(adapter, 1);
3151                         clear_bit(__QLCNIC_AER, &adapter->state);
3152                         netif_device_attach(netdev);
3153                         return err;
3154                 }
3155
3156                 err = qlcnic_up(adapter, netdev);
3157                 if (err)
3158                         goto done;
3159
3160                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3161         }
3162  done:
3163         netif_device_attach(netdev);
3164         return err;
3165 }
3166
3167 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3168                                                 pci_channel_state_t state)
3169 {
3170         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3171         struct net_device *netdev = adapter->netdev;
3172
3173         if (state == pci_channel_io_perm_failure)
3174                 return PCI_ERS_RESULT_DISCONNECT;
3175
3176         if (state == pci_channel_io_normal)
3177                 return PCI_ERS_RESULT_RECOVERED;
3178
3179         set_bit(__QLCNIC_AER, &adapter->state);
3180         netif_device_detach(netdev);
3181
3182         cancel_delayed_work_sync(&adapter->fw_work);
3183
3184         if (netif_running(netdev))
3185                 qlcnic_down(adapter, netdev);
3186
3187         qlcnic_detach(adapter);
3188         qlcnic_teardown_intr(adapter);
3189
3190         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3191
3192         pci_save_state(pdev);
3193         pci_disable_device(pdev);
3194
3195         return PCI_ERS_RESULT_NEED_RESET;
3196 }
3197
3198 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3199 {
3200         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3201                                 PCI_ERS_RESULT_RECOVERED;
3202 }
3203
3204 static void qlcnic_io_resume(struct pci_dev *pdev)
3205 {
3206         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3207
3208         pci_cleanup_aer_uncorrect_error_status(pdev);
3209
3210         if (QLCRD32(adapter, QLCNIC_CRB_DEV_STATE) == QLCNIC_DEV_READY &&
3211             test_and_clear_bit(__QLCNIC_AER, &adapter->state))
3212                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3213                                                 FW_POLL_DELAY);
3214 }
3215
3216 static int
3217 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3218 {
3219         int err;
3220
3221         err = qlcnic_can_start_firmware(adapter);
3222         if (err)
3223                 return err;
3224
3225         err = qlcnic_check_npar_opertional(adapter);
3226         if (err)
3227                 return err;
3228
3229         err = qlcnic_initialize_nic(adapter);
3230         if (err)
3231                 return err;
3232
3233         qlcnic_check_options(adapter);
3234
3235         err = qlcnic_set_eswitch_port_config(adapter);
3236         if (err)
3237                 return err;
3238
3239         adapter->need_fw_reset = 0;
3240
3241         return err;
3242 }
3243
3244 static int
3245 qlcnicvf_config_bridged_mode(struct qlcnic_adapter *adapter, u32 enable)
3246 {
3247         return -EOPNOTSUPP;
3248 }
3249
3250 static int
3251 qlcnicvf_config_led(struct qlcnic_adapter *adapter, u32 state, u32 rate)
3252 {
3253         return -EOPNOTSUPP;
3254 }
3255
3256 static ssize_t
3257 qlcnic_store_bridged_mode(struct device *dev,
3258                 struct device_attribute *attr, const char *buf, size_t len)
3259 {
3260         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3261         unsigned long new;
3262         int ret = -EINVAL;
3263
3264         if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG))
3265                 goto err_out;
3266
3267         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3268                 goto err_out;
3269
3270         if (strict_strtoul(buf, 2, &new))
3271                 goto err_out;
3272
3273         if (!adapter->nic_ops->config_bridged_mode(adapter, !!new))
3274                 ret = len;
3275
3276 err_out:
3277         return ret;
3278 }
3279
3280 static ssize_t
3281 qlcnic_show_bridged_mode(struct device *dev,
3282                 struct device_attribute *attr, char *buf)
3283 {
3284         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3285         int bridged_mode = 0;
3286
3287         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
3288                 bridged_mode = !!(adapter->flags & QLCNIC_BRIDGE_ENABLED);
3289
3290         return sprintf(buf, "%d\n", bridged_mode);
3291 }
3292
3293 static struct device_attribute dev_attr_bridged_mode = {
3294        .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
3295        .show = qlcnic_show_bridged_mode,
3296        .store = qlcnic_store_bridged_mode,
3297 };
3298
3299 static ssize_t
3300 qlcnic_store_diag_mode(struct device *dev,
3301                 struct device_attribute *attr, const char *buf, size_t len)
3302 {
3303         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3304         unsigned long new;
3305
3306         if (strict_strtoul(buf, 2, &new))
3307                 return -EINVAL;
3308
3309         if (!!new != !!(adapter->flags & QLCNIC_DIAG_ENABLED))
3310                 adapter->flags ^= QLCNIC_DIAG_ENABLED;
3311
3312         return len;
3313 }
3314
3315 static ssize_t
3316 qlcnic_show_diag_mode(struct device *dev,
3317                 struct device_attribute *attr, char *buf)
3318 {
3319         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3320
3321         return sprintf(buf, "%d\n",
3322                         !!(adapter->flags & QLCNIC_DIAG_ENABLED));
3323 }
3324
3325 static struct device_attribute dev_attr_diag_mode = {
3326         .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
3327         .show = qlcnic_show_diag_mode,
3328         .store = qlcnic_store_diag_mode,
3329 };
3330
3331 static int
3332 qlcnic_sysfs_validate_crb(struct qlcnic_adapter *adapter,
3333                 loff_t offset, size_t size)
3334 {
3335         size_t crb_size = 4;
3336
3337         if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
3338                 return -EIO;
3339
3340         if (offset < QLCNIC_PCI_CRBSPACE) {
3341                 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM,
3342                                         QLCNIC_PCI_CAMQM_END))
3343                         crb_size = 8;
3344                 else
3345                         return -EINVAL;
3346         }
3347
3348         if ((size != crb_size) || (offset & (crb_size-1)))
3349                 return  -EINVAL;
3350
3351         return 0;
3352 }
3353
3354 static ssize_t
3355 qlcnic_sysfs_read_crb(struct file *filp, struct kobject *kobj,
3356                 struct bin_attribute *attr,
3357                 char *buf, loff_t offset, size_t size)
3358 {
3359         struct device *dev = container_of(kobj, struct device, kobj);
3360         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3361         u32 data;
3362         u64 qmdata;
3363         int ret;
3364
3365         ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
3366         if (ret != 0)
3367                 return ret;
3368
3369         if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
3370                 qlcnic_pci_camqm_read_2M(adapter, offset, &qmdata);
3371                 memcpy(buf, &qmdata, size);
3372         } else {
3373                 data = QLCRD32(adapter, offset);
3374                 memcpy(buf, &data, size);
3375         }
3376         return size;
3377 }
3378
3379 static ssize_t
3380 qlcnic_sysfs_write_crb(struct file *filp, struct kobject *kobj,
3381                 struct bin_attribute *attr,
3382                 char *buf, loff_t offset, size_t size)
3383 {
3384         struct device *dev = container_of(kobj, struct device, kobj);
3385         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3386         u32 data;
3387         u64 qmdata;
3388         int ret;
3389
3390         ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
3391         if (ret != 0)
3392                 return ret;
3393
3394         if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
3395                 memcpy(&qmdata, buf, size);
3396                 qlcnic_pci_camqm_write_2M(adapter, offset, qmdata);
3397         } else {
3398                 memcpy(&data, buf, size);
3399                 QLCWR32(adapter, offset, data);
3400         }
3401         return size;
3402 }
3403
3404 static int
3405 qlcnic_sysfs_validate_mem(struct qlcnic_adapter *adapter,
3406                 loff_t offset, size_t size)
3407 {
3408         if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
3409                 return -EIO;
3410
3411         if ((size != 8) || (offset & 0x7))
3412                 return  -EIO;
3413
3414         return 0;
3415 }
3416
3417 static ssize_t
3418 qlcnic_sysfs_read_mem(struct file *filp, struct kobject *kobj,
3419                 struct bin_attribute *attr,
3420                 char *buf, loff_t offset, size_t size)
3421 {
3422         struct device *dev = container_of(kobj, struct device, kobj);
3423         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3424         u64 data;
3425         int ret;
3426
3427         ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
3428         if (ret != 0)
3429                 return ret;
3430
3431         if (qlcnic_pci_mem_read_2M(adapter, offset, &data))
3432                 return -EIO;
3433
3434         memcpy(buf, &data, size);
3435
3436         return size;
3437 }
3438
3439 static ssize_t
3440 qlcnic_sysfs_write_mem(struct file *filp, struct kobject *kobj,
3441                 struct bin_attribute *attr,
3442                 char *buf, loff_t offset, size_t size)
3443 {
3444         struct device *dev = container_of(kobj, struct device, kobj);
3445         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3446         u64 data;
3447         int ret;
3448
3449         ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
3450         if (ret != 0)
3451                 return ret;
3452
3453         memcpy(&data, buf, size);
3454
3455         if (qlcnic_pci_mem_write_2M(adapter, offset, data))
3456                 return -EIO;
3457
3458         return size;
3459 }
3460
3461
3462 static struct bin_attribute bin_attr_crb = {
3463         .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
3464         .size = 0,
3465         .read = qlcnic_sysfs_read_crb,
3466         .write = qlcnic_sysfs_write_crb,
3467 };
3468
3469 static struct bin_attribute bin_attr_mem = {
3470         .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
3471         .size = 0,
3472         .read = qlcnic_sysfs_read_mem,
3473         .write = qlcnic_sysfs_write_mem,
3474 };
3475
3476 static int
3477 validate_pm_config(struct qlcnic_adapter *adapter,
3478                         struct qlcnic_pm_func_cfg *pm_cfg, int count)
3479 {
3480
3481         u8 src_pci_func, s_esw_id, d_esw_id;
3482         u8 dest_pci_func;
3483         int i;
3484
3485         for (i = 0; i < count; i++) {
3486                 src_pci_func = pm_cfg[i].pci_func;
3487                 dest_pci_func = pm_cfg[i].dest_npar;
3488                 if (src_pci_func >= QLCNIC_MAX_PCI_FUNC
3489                                 || dest_pci_func >= QLCNIC_MAX_PCI_FUNC)
3490                         return QL_STATUS_INVALID_PARAM;
3491
3492                 if (adapter->npars[src_pci_func].type != QLCNIC_TYPE_NIC)
3493                         return QL_STATUS_INVALID_PARAM;
3494
3495                 if (adapter->npars[dest_pci_func].type != QLCNIC_TYPE_NIC)
3496                         return QL_STATUS_INVALID_PARAM;
3497
3498                 s_esw_id = adapter->npars[src_pci_func].phy_port;
3499                 d_esw_id = adapter->npars[dest_pci_func].phy_port;
3500
3501                 if (s_esw_id != d_esw_id)
3502                         return QL_STATUS_INVALID_PARAM;
3503
3504         }
3505         return 0;
3506
3507 }
3508
3509 static ssize_t
3510 qlcnic_sysfs_write_pm_config(struct file *filp, struct kobject *kobj,
3511         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3512 {
3513         struct device *dev = container_of(kobj, struct device, kobj);
3514         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3515         struct qlcnic_pm_func_cfg *pm_cfg;
3516         u32 id, action, pci_func;
3517         int count, rem, i, ret;
3518
3519         count   = size / sizeof(struct qlcnic_pm_func_cfg);
3520         rem     = size % sizeof(struct qlcnic_pm_func_cfg);
3521         if (rem)
3522                 return QL_STATUS_INVALID_PARAM;
3523
3524         pm_cfg = (struct qlcnic_pm_func_cfg *) buf;
3525
3526         ret = validate_pm_config(adapter, pm_cfg, count);
3527         if (ret)
3528                 return ret;
3529         for (i = 0; i < count; i++) {
3530                 pci_func = pm_cfg[i].pci_func;
3531                 action = !!pm_cfg[i].action;
3532                 id = adapter->npars[pci_func].phy_port;
3533                 ret = qlcnic_config_port_mirroring(adapter, id,
3534                                                 action, pci_func);
3535                 if (ret)
3536                         return ret;
3537         }
3538
3539         for (i = 0; i < count; i++) {
3540                 pci_func = pm_cfg[i].pci_func;
3541                 id = adapter->npars[pci_func].phy_port;
3542                 adapter->npars[pci_func].enable_pm = !!pm_cfg[i].action;
3543                 adapter->npars[pci_func].dest_npar = id;
3544         }
3545         return size;
3546 }
3547
3548 static ssize_t
3549 qlcnic_sysfs_read_pm_config(struct file *filp, struct kobject *kobj,
3550         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3551 {
3552         struct device *dev = container_of(kobj, struct device, kobj);
3553         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3554         struct qlcnic_pm_func_cfg pm_cfg[QLCNIC_MAX_PCI_FUNC];
3555         int i;
3556
3557         if (size != sizeof(pm_cfg))
3558                 return QL_STATUS_INVALID_PARAM;
3559
3560         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
3561                 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3562                         continue;
3563                 pm_cfg[i].action = adapter->npars[i].enable_pm;
3564                 pm_cfg[i].dest_npar = 0;
3565                 pm_cfg[i].pci_func = i;
3566         }
3567         memcpy(buf, &pm_cfg, size);
3568
3569         return size;
3570 }
3571
3572 static int
3573 validate_esw_config(struct qlcnic_adapter *adapter,
3574         struct qlcnic_esw_func_cfg *esw_cfg, int count)
3575 {
3576         u32 op_mode;
3577         u8 pci_func;
3578         int i;
3579
3580         op_mode = readl(adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE);
3581
3582         for (i = 0; i < count; i++) {
3583                 pci_func = esw_cfg[i].pci_func;
3584                 if (pci_func >= QLCNIC_MAX_PCI_FUNC)
3585                         return QL_STATUS_INVALID_PARAM;
3586
3587                 if (adapter->op_mode == QLCNIC_MGMT_FUNC)
3588                         if (adapter->npars[pci_func].type != QLCNIC_TYPE_NIC)
3589                                 return QL_STATUS_INVALID_PARAM;
3590
3591                 switch (esw_cfg[i].op_mode) {
3592                 case QLCNIC_PORT_DEFAULTS:
3593                         if (QLC_DEV_GET_DRV(op_mode, pci_func) !=
3594                                                 QLCNIC_NON_PRIV_FUNC) {
3595                                 esw_cfg[i].mac_anti_spoof = 0;
3596                                 esw_cfg[i].mac_override = 1;
3597                                 esw_cfg[i].promisc_mode = 1;
3598                         }
3599                         break;
3600                 case QLCNIC_ADD_VLAN:
3601                         if (!IS_VALID_VLAN(esw_cfg[i].vlan_id))
3602                                 return QL_STATUS_INVALID_PARAM;
3603                         if (!esw_cfg[i].op_type)
3604                                 return QL_STATUS_INVALID_PARAM;
3605                         break;
3606                 case QLCNIC_DEL_VLAN:
3607                         if (!esw_cfg[i].op_type)
3608                                 return QL_STATUS_INVALID_PARAM;
3609                         break;
3610                 default:
3611                         return QL_STATUS_INVALID_PARAM;
3612                 }
3613         }
3614         return 0;
3615 }
3616
3617 static ssize_t
3618 qlcnic_sysfs_write_esw_config(struct file *file, struct kobject *kobj,
3619         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3620 {
3621         struct device *dev = container_of(kobj, struct device, kobj);
3622         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3623         struct qlcnic_esw_func_cfg *esw_cfg;
3624         struct qlcnic_npar_info *npar;
3625         int count, rem, i, ret;
3626         u8 pci_func, op_mode = 0;
3627
3628         count   = size / sizeof(struct qlcnic_esw_func_cfg);
3629         rem     = size % sizeof(struct qlcnic_esw_func_cfg);
3630         if (rem)
3631                 return QL_STATUS_INVALID_PARAM;
3632
3633         esw_cfg = (struct qlcnic_esw_func_cfg *) buf;
3634         ret = validate_esw_config(adapter, esw_cfg, count);
3635         if (ret)
3636                 return ret;
3637
3638         for (i = 0; i < count; i++) {
3639                 if (adapter->op_mode == QLCNIC_MGMT_FUNC)
3640                         if (qlcnic_config_switch_port(adapter, &esw_cfg[i]))
3641                                 return QL_STATUS_INVALID_PARAM;
3642
3643                 if (adapter->ahw.pci_func != esw_cfg[i].pci_func)
3644                         continue;
3645
3646                 op_mode = esw_cfg[i].op_mode;
3647                 qlcnic_get_eswitch_port_config(adapter, &esw_cfg[i]);
3648                 esw_cfg[i].op_mode = op_mode;
3649                 esw_cfg[i].pci_func = adapter->ahw.pci_func;
3650
3651                 switch (esw_cfg[i].op_mode) {
3652                 case QLCNIC_PORT_DEFAULTS:
3653                         qlcnic_set_eswitch_port_features(adapter, &esw_cfg[i]);
3654                         break;
3655                 case QLCNIC_ADD_VLAN:
3656                         qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
3657                         break;
3658                 case QLCNIC_DEL_VLAN:
3659                         esw_cfg[i].vlan_id = 0;
3660                         qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
3661                         break;
3662                 }
3663         }
3664
3665         if (adapter->op_mode != QLCNIC_MGMT_FUNC)
3666                 goto out;
3667
3668         for (i = 0; i < count; i++) {
3669                 pci_func = esw_cfg[i].pci_func;
3670                 npar = &adapter->npars[pci_func];
3671                 switch (esw_cfg[i].op_mode) {
3672                 case QLCNIC_PORT_DEFAULTS:
3673                         npar->promisc_mode = esw_cfg[i].promisc_mode;
3674                         npar->mac_override = esw_cfg[i].mac_override;
3675                         npar->offload_flags = esw_cfg[i].offload_flags;
3676                         npar->mac_anti_spoof = esw_cfg[i].mac_anti_spoof;
3677                         npar->discard_tagged = esw_cfg[i].discard_tagged;
3678                         break;
3679                 case QLCNIC_ADD_VLAN:
3680                         npar->pvid = esw_cfg[i].vlan_id;
3681                         break;
3682                 case QLCNIC_DEL_VLAN:
3683                         npar->pvid = 0;
3684                         break;
3685                 }
3686         }
3687 out:
3688         return size;
3689 }
3690
3691 static ssize_t
3692 qlcnic_sysfs_read_esw_config(struct file *file, struct kobject *kobj,
3693         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3694 {
3695         struct device *dev = container_of(kobj, struct device, kobj);
3696         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3697         struct qlcnic_esw_func_cfg esw_cfg[QLCNIC_MAX_PCI_FUNC];
3698         u8 i;
3699
3700         if (size != sizeof(esw_cfg))
3701                 return QL_STATUS_INVALID_PARAM;
3702
3703         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
3704                 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3705                         continue;
3706                 esw_cfg[i].pci_func = i;
3707                 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg[i]))
3708                         return QL_STATUS_INVALID_PARAM;
3709         }
3710         memcpy(buf, &esw_cfg, size);
3711
3712         return size;
3713 }
3714
3715 static int
3716 validate_npar_config(struct qlcnic_adapter *adapter,
3717                                 struct qlcnic_npar_func_cfg *np_cfg, int count)
3718 {
3719         u8 pci_func, i;
3720
3721         for (i = 0; i < count; i++) {
3722                 pci_func = np_cfg[i].pci_func;
3723                 if (pci_func >= QLCNIC_MAX_PCI_FUNC)
3724                         return QL_STATUS_INVALID_PARAM;
3725
3726                 if (adapter->npars[pci_func].type != QLCNIC_TYPE_NIC)
3727                         return QL_STATUS_INVALID_PARAM;
3728
3729                 if (!IS_VALID_BW(np_cfg[i].min_bw)
3730                                 || !IS_VALID_BW(np_cfg[i].max_bw)
3731                                 || !IS_VALID_RX_QUEUES(np_cfg[i].max_rx_queues)
3732                                 || !IS_VALID_TX_QUEUES(np_cfg[i].max_tx_queues))
3733                         return QL_STATUS_INVALID_PARAM;
3734         }
3735         return 0;
3736 }
3737
3738 static ssize_t
3739 qlcnic_sysfs_write_npar_config(struct file *file, struct kobject *kobj,
3740         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3741 {
3742         struct device *dev = container_of(kobj, struct device, kobj);
3743         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3744         struct qlcnic_info nic_info;
3745         struct qlcnic_npar_func_cfg *np_cfg;
3746         int i, count, rem, ret;
3747         u8 pci_func;
3748
3749         count   = size / sizeof(struct qlcnic_npar_func_cfg);
3750         rem     = size % sizeof(struct qlcnic_npar_func_cfg);
3751         if (rem)
3752                 return QL_STATUS_INVALID_PARAM;
3753
3754         np_cfg = (struct qlcnic_npar_func_cfg *) buf;
3755         ret = validate_npar_config(adapter, np_cfg, count);
3756         if (ret)
3757                 return ret;
3758
3759         for (i = 0; i < count ; i++) {
3760                 pci_func = np_cfg[i].pci_func;
3761                 ret = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
3762                 if (ret)
3763                         return ret;
3764                 nic_info.pci_func = pci_func;
3765                 nic_info.min_tx_bw = np_cfg[i].min_bw;
3766                 nic_info.max_tx_bw = np_cfg[i].max_bw;
3767                 ret = qlcnic_set_nic_info(adapter, &nic_info);
3768                 if (ret)
3769                         return ret;
3770                 adapter->npars[i].min_bw = nic_info.min_tx_bw;
3771                 adapter->npars[i].max_bw = nic_info.max_tx_bw;
3772         }
3773
3774         return size;
3775
3776 }
3777 static ssize_t
3778 qlcnic_sysfs_read_npar_config(struct file *file, struct kobject *kobj,
3779         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3780 {
3781         struct device *dev = container_of(kobj, struct device, kobj);
3782         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3783         struct qlcnic_info nic_info;
3784         struct qlcnic_npar_func_cfg np_cfg[QLCNIC_MAX_PCI_FUNC];
3785         int i, ret;
3786
3787         if (size != sizeof(np_cfg))
3788                 return QL_STATUS_INVALID_PARAM;
3789
3790         for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) {
3791                 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3792                         continue;
3793                 ret = qlcnic_get_nic_info(adapter, &nic_info, i);
3794                 if (ret)
3795                         return ret;
3796
3797                 np_cfg[i].pci_func = i;
3798                 np_cfg[i].op_mode = (u8)nic_info.op_mode;
3799                 np_cfg[i].port_num = nic_info.phys_port;
3800                 np_cfg[i].fw_capab = nic_info.capabilities;
3801                 np_cfg[i].min_bw = nic_info.min_tx_bw ;
3802                 np_cfg[i].max_bw = nic_info.max_tx_bw;
3803                 np_cfg[i].max_tx_queues = nic_info.max_tx_ques;
3804                 np_cfg[i].max_rx_queues = nic_info.max_rx_ques;
3805         }
3806         memcpy(buf, &np_cfg, size);
3807         return size;
3808 }
3809
3810 static ssize_t
3811 qlcnic_sysfs_get_port_stats(struct file *file, struct kobject *kobj,
3812         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3813 {
3814         struct device *dev = container_of(kobj, struct device, kobj);
3815         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3816         struct qlcnic_esw_statistics port_stats;
3817         int ret;
3818
3819         if (size != sizeof(struct qlcnic_esw_statistics))
3820                 return QL_STATUS_INVALID_PARAM;
3821
3822         if (offset >= QLCNIC_MAX_PCI_FUNC)
3823                 return QL_STATUS_INVALID_PARAM;
3824
3825         memset(&port_stats, 0, size);
3826         ret = qlcnic_get_port_stats(adapter, offset, QLCNIC_QUERY_RX_COUNTER,
3827                                                                 &port_stats.rx);
3828         if (ret)
3829                 return ret;
3830
3831         ret = qlcnic_get_port_stats(adapter, offset, QLCNIC_QUERY_TX_COUNTER,
3832                                                                 &port_stats.tx);
3833         if (ret)
3834                 return ret;
3835
3836         memcpy(buf, &port_stats, size);
3837         return size;
3838 }
3839
3840 static ssize_t
3841 qlcnic_sysfs_get_esw_stats(struct file *file, struct kobject *kobj,
3842         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3843 {
3844         struct device *dev = container_of(kobj, struct device, kobj);
3845         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3846         struct qlcnic_esw_statistics esw_stats;
3847         int ret;
3848
3849         if (size != sizeof(struct qlcnic_esw_statistics))
3850                 return QL_STATUS_INVALID_PARAM;
3851
3852         if (offset >= QLCNIC_NIU_MAX_XG_PORTS)
3853                 return QL_STATUS_INVALID_PARAM;
3854
3855         memset(&esw_stats, 0, size);
3856         ret = qlcnic_get_eswitch_stats(adapter, offset, QLCNIC_QUERY_RX_COUNTER,
3857                                                                 &esw_stats.rx);
3858         if (ret)
3859                 return ret;
3860
3861         ret = qlcnic_get_eswitch_stats(adapter, offset, QLCNIC_QUERY_TX_COUNTER,
3862                                                                 &esw_stats.tx);
3863         if (ret)
3864                 return ret;
3865
3866         memcpy(buf, &esw_stats, size);
3867         return size;
3868 }
3869
3870 static ssize_t
3871 qlcnic_sysfs_clear_esw_stats(struct file *file, struct kobject *kobj,
3872         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3873 {
3874         struct device *dev = container_of(kobj, struct device, kobj);
3875         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3876         int ret;
3877
3878         if (offset >= QLCNIC_NIU_MAX_XG_PORTS)
3879                 return QL_STATUS_INVALID_PARAM;
3880
3881         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_ESWITCH, offset,
3882                                                 QLCNIC_QUERY_RX_COUNTER);
3883         if (ret)
3884                 return ret;
3885
3886         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_ESWITCH, offset,
3887                                                 QLCNIC_QUERY_TX_COUNTER);
3888         if (ret)
3889                 return ret;
3890
3891         return size;
3892 }
3893
3894 static ssize_t
3895 qlcnic_sysfs_clear_port_stats(struct file *file, struct kobject *kobj,
3896         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3897 {
3898
3899         struct device *dev = container_of(kobj, struct device, kobj);
3900         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3901         int ret;
3902
3903         if (offset >= QLCNIC_MAX_PCI_FUNC)
3904                 return QL_STATUS_INVALID_PARAM;
3905
3906         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_PORT, offset,
3907                                                 QLCNIC_QUERY_RX_COUNTER);
3908         if (ret)
3909                 return ret;
3910
3911         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_PORT, offset,
3912                                                 QLCNIC_QUERY_TX_COUNTER);
3913         if (ret)
3914                 return ret;
3915
3916         return size;
3917 }
3918
3919 static ssize_t
3920 qlcnic_sysfs_read_pci_config(struct file *file, struct kobject *kobj,
3921         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3922 {
3923         struct device *dev = container_of(kobj, struct device, kobj);
3924         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3925         struct qlcnic_pci_func_cfg pci_cfg[QLCNIC_MAX_PCI_FUNC];
3926         struct qlcnic_pci_info *pci_info;
3927         int i, ret;
3928
3929         if (size != sizeof(pci_cfg))
3930                 return QL_STATUS_INVALID_PARAM;
3931
3932         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
3933         if (!pci_info)
3934                 return -ENOMEM;
3935
3936         ret = qlcnic_get_pci_info(adapter, pci_info);
3937         if (ret) {
3938                 kfree(pci_info);
3939                 return ret;
3940         }
3941
3942         for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) {
3943                 pci_cfg[i].pci_func = pci_info[i].id;
3944                 pci_cfg[i].func_type = pci_info[i].type;
3945                 pci_cfg[i].port_num = pci_info[i].default_port;
3946                 pci_cfg[i].min_bw = pci_info[i].tx_min_bw;
3947                 pci_cfg[i].max_bw = pci_info[i].tx_max_bw;
3948                 memcpy(&pci_cfg[i].def_mac_addr, &pci_info[i].mac, ETH_ALEN);
3949         }
3950         memcpy(buf, &pci_cfg, size);
3951         kfree(pci_info);
3952         return size;
3953 }
3954 static struct bin_attribute bin_attr_npar_config = {
3955         .attr = {.name = "npar_config", .mode = (S_IRUGO | S_IWUSR)},
3956         .size = 0,
3957         .read = qlcnic_sysfs_read_npar_config,
3958         .write = qlcnic_sysfs_write_npar_config,
3959 };
3960
3961 static struct bin_attribute bin_attr_pci_config = {
3962         .attr = {.name = "pci_config", .mode = (S_IRUGO | S_IWUSR)},
3963         .size = 0,
3964         .read = qlcnic_sysfs_read_pci_config,
3965         .write = NULL,
3966 };
3967
3968 static struct bin_attribute bin_attr_port_stats = {
3969         .attr = {.name = "port_stats", .mode = (S_IRUGO | S_IWUSR)},
3970         .size = 0,
3971         .read = qlcnic_sysfs_get_port_stats,
3972         .write = qlcnic_sysfs_clear_port_stats,
3973 };
3974
3975 static struct bin_attribute bin_attr_esw_stats = {
3976         .attr = {.name = "esw_stats", .mode = (S_IRUGO | S_IWUSR)},
3977         .size = 0,
3978         .read = qlcnic_sysfs_get_esw_stats,
3979         .write = qlcnic_sysfs_clear_esw_stats,
3980 };
3981
3982 static struct bin_attribute bin_attr_esw_config = {
3983         .attr = {.name = "esw_config", .mode = (S_IRUGO | S_IWUSR)},
3984         .size = 0,
3985         .read = qlcnic_sysfs_read_esw_config,
3986         .write = qlcnic_sysfs_write_esw_config,
3987 };
3988
3989 static struct bin_attribute bin_attr_pm_config = {
3990         .attr = {.name = "pm_config", .mode = (S_IRUGO | S_IWUSR)},
3991         .size = 0,
3992         .read = qlcnic_sysfs_read_pm_config,
3993         .write = qlcnic_sysfs_write_pm_config,
3994 };
3995
3996 static void
3997 qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter)
3998 {
3999         struct device *dev = &adapter->pdev->dev;
4000
4001         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
4002                 if (device_create_file(dev, &dev_attr_bridged_mode))
4003                         dev_warn(dev,
4004                                 "failed to create bridged_mode sysfs entry\n");
4005 }
4006
4007 static void
4008 qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter)
4009 {
4010         struct device *dev = &adapter->pdev->dev;
4011
4012         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
4013                 device_remove_file(dev, &dev_attr_bridged_mode);
4014 }
4015
4016 static void
4017 qlcnic_create_diag_entries(struct qlcnic_adapter *adapter)
4018 {
4019         struct device *dev = &adapter->pdev->dev;
4020
4021         if (device_create_bin_file(dev, &bin_attr_port_stats))
4022                 dev_info(dev, "failed to create port stats sysfs entry");
4023
4024         if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
4025                 return;
4026         if (device_create_file(dev, &dev_attr_diag_mode))
4027                 dev_info(dev, "failed to create diag_mode sysfs entry\n");
4028         if (device_create_bin_file(dev, &bin_attr_crb))
4029                 dev_info(dev, "failed to create crb sysfs entry\n");
4030         if (device_create_bin_file(dev, &bin_attr_mem))
4031                 dev_info(dev, "failed to create mem sysfs entry\n");
4032         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
4033                 return;
4034         if (device_create_bin_file(dev, &bin_attr_esw_config))
4035                 dev_info(dev, "failed to create esw config sysfs entry");
4036         if (adapter->op_mode != QLCNIC_MGMT_FUNC)
4037                 return;
4038         if (device_create_bin_file(dev, &bin_attr_pci_config))
4039                 dev_info(dev, "failed to create pci config sysfs entry");
4040         if (device_create_bin_file(dev, &bin_attr_npar_config))
4041                 dev_info(dev, "failed to create npar config sysfs entry");
4042         if (device_create_bin_file(dev, &bin_attr_pm_config))
4043                 dev_info(dev, "failed to create pm config sysfs entry");
4044         if (device_create_bin_file(dev, &bin_attr_esw_stats))
4045                 dev_info(dev, "failed to create eswitch stats sysfs entry");
4046 }
4047
4048 static void
4049 qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter)
4050 {
4051         struct device *dev = &adapter->pdev->dev;
4052
4053         device_remove_bin_file(dev, &bin_attr_port_stats);
4054
4055         if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
4056                 return;
4057         device_remove_file(dev, &dev_attr_diag_mode);
4058         device_remove_bin_file(dev, &bin_attr_crb);
4059         device_remove_bin_file(dev, &bin_attr_mem);
4060         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
4061                 return;
4062         device_remove_bin_file(dev, &bin_attr_esw_config);
4063         if (adapter->op_mode != QLCNIC_MGMT_FUNC)
4064                 return;
4065         device_remove_bin_file(dev, &bin_attr_pci_config);
4066         device_remove_bin_file(dev, &bin_attr_npar_config);
4067         device_remove_bin_file(dev, &bin_attr_pm_config);
4068         device_remove_bin_file(dev, &bin_attr_esw_stats);
4069 }
4070
4071 #ifdef CONFIG_INET
4072
4073 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4074
4075 static void
4076 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4077                         struct net_device *dev, unsigned long event)
4078 {
4079         struct in_device *indev;
4080
4081         indev = in_dev_get(dev);
4082         if (!indev)
4083                 return;
4084
4085         for_ifa(indev) {
4086                 switch (event) {
4087                 case NETDEV_UP:
4088                         qlcnic_config_ipaddr(adapter,
4089                                         ifa->ifa_address, QLCNIC_IP_UP);
4090                         break;
4091                 case NETDEV_DOWN:
4092                         qlcnic_config_ipaddr(adapter,
4093                                         ifa->ifa_address, QLCNIC_IP_DOWN);
4094                         break;
4095                 default:
4096                         break;
4097                 }
4098         } endfor_ifa(indev);
4099
4100         in_dev_put(indev);
4101 }
4102
4103 static void
4104 qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4105 {
4106         struct qlcnic_adapter *adapter = netdev_priv(netdev);
4107         struct net_device *dev;
4108         u16 vid;
4109
4110         qlcnic_config_indev_addr(adapter, netdev, event);
4111
4112         if (!adapter->vlgrp)
4113                 return;
4114
4115         for (vid = 0; vid < VLAN_N_VID; vid++) {
4116                 dev = vlan_group_get_device(adapter->vlgrp, vid);
4117                 if (!dev)
4118                         continue;
4119
4120                 qlcnic_config_indev_addr(adapter, dev, event);
4121         }
4122 }
4123
4124 static int qlcnic_netdev_event(struct notifier_block *this,
4125                                  unsigned long event, void *ptr)
4126 {
4127         struct qlcnic_adapter *adapter;
4128         struct net_device *dev = (struct net_device *)ptr;
4129
4130 recheck:
4131         if (dev == NULL)
4132                 goto done;
4133
4134         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4135                 dev = vlan_dev_real_dev(dev);
4136                 goto recheck;
4137         }
4138
4139         if (!is_qlcnic_netdev(dev))
4140                 goto done;
4141
4142         adapter = netdev_priv(dev);
4143
4144         if (!adapter)
4145                 goto done;
4146
4147         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4148                 goto done;
4149
4150         qlcnic_config_indev_addr(adapter, dev, event);
4151 done:
4152         return NOTIFY_DONE;
4153 }
4154
4155 static int
4156 qlcnic_inetaddr_event(struct notifier_block *this,
4157                 unsigned long event, void *ptr)
4158 {
4159         struct qlcnic_adapter *adapter;
4160         struct net_device *dev;
4161
4162         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4163
4164         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4165
4166 recheck:
4167         if (dev == NULL)
4168                 goto done;
4169
4170         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4171                 dev = vlan_dev_real_dev(dev);
4172                 goto recheck;
4173         }
4174
4175         if (!is_qlcnic_netdev(dev))
4176                 goto done;
4177
4178         adapter = netdev_priv(dev);
4179
4180         if (!adapter)
4181                 goto done;
4182
4183         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4184                 goto done;
4185
4186         switch (event) {
4187         case NETDEV_UP:
4188                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4189                 break;
4190         case NETDEV_DOWN:
4191                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4192                 break;
4193         default:
4194                 break;
4195         }
4196
4197 done:
4198         return NOTIFY_DONE;
4199 }
4200
4201 static struct notifier_block    qlcnic_netdev_cb = {
4202         .notifier_call = qlcnic_netdev_event,
4203 };
4204
4205 static struct notifier_block qlcnic_inetaddr_cb = {
4206         .notifier_call = qlcnic_inetaddr_event,
4207 };
4208 #else
4209 static void
4210 qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4211 { }
4212 #endif
4213 static struct pci_error_handlers qlcnic_err_handler = {
4214         .error_detected = qlcnic_io_error_detected,
4215         .slot_reset = qlcnic_io_slot_reset,
4216         .resume = qlcnic_io_resume,
4217 };
4218
4219 static struct pci_driver qlcnic_driver = {
4220         .name = qlcnic_driver_name,
4221         .id_table = qlcnic_pci_tbl,
4222         .probe = qlcnic_probe,
4223         .remove = __devexit_p(qlcnic_remove),
4224 #ifdef CONFIG_PM
4225         .suspend = qlcnic_suspend,
4226         .resume = qlcnic_resume,
4227 #endif
4228         .shutdown = qlcnic_shutdown,
4229         .err_handler = &qlcnic_err_handler
4230
4231 };
4232
4233 static int __init qlcnic_init_module(void)
4234 {
4235         int ret;
4236
4237         printk(KERN_INFO "%s\n", qlcnic_driver_string);
4238
4239         qlcnic_wq = create_singlethread_workqueue("qlcnic");
4240         if (qlcnic_wq == NULL) {
4241                 printk(KERN_ERR "qlcnic: cannot create workqueue\n");
4242                 return -ENOMEM;
4243         }
4244
4245 #ifdef CONFIG_INET
4246         register_netdevice_notifier(&qlcnic_netdev_cb);
4247         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4248 #endif
4249
4250         ret = pci_register_driver(&qlcnic_driver);
4251         if (ret) {
4252 #ifdef CONFIG_INET
4253                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4254                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4255 #endif
4256                 destroy_workqueue(qlcnic_wq);
4257         }
4258
4259         return ret;
4260 }
4261
4262 module_init(qlcnic_init_module);
4263
4264 static void __exit qlcnic_exit_module(void)
4265 {
4266
4267         pci_unregister_driver(&qlcnic_driver);
4268
4269 #ifdef CONFIG_INET
4270         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4271         unregister_netdevice_notifier(&qlcnic_netdev_cb);
4272 #endif
4273         destroy_workqueue(qlcnic_wq);
4274 }
4275
4276 module_exit(qlcnic_exit_module);