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         netif_stop_queue(netdev);
1454
1455         err = register_netdev(netdev);
1456         if (err) {
1457                 dev_err(&pdev->dev, "failed to register net device\n");
1458                 return err;
1459         }
1460
1461         return 0;
1462 }
1463
1464 static int qlcnic_set_dma_mask(struct pci_dev *pdev, u8 *pci_using_dac)
1465 {
1466         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1467                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1468                 *pci_using_dac = 1;
1469         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1470                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1471                 *pci_using_dac = 0;
1472         else {
1473                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1474                 return -EIO;
1475         }
1476
1477         return 0;
1478 }
1479
1480 static int __devinit
1481 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1482 {
1483         struct net_device *netdev = NULL;
1484         struct qlcnic_adapter *adapter = NULL;
1485         int err;
1486         uint8_t revision_id;
1487         uint8_t pci_using_dac;
1488         char brd_name[QLCNIC_MAX_BOARD_NAME_LEN];
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         err = adapter->nic_ops->start_firmware(adapter);
1551         if (err) {
1552                 dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
1553                 goto err_out_decr_ref;
1554         }
1555
1556         if (qlcnic_read_mac_addr(adapter))
1557                 dev_warn(&pdev->dev, "failed to read mac addr\n");
1558
1559         if (adapter->portnum == 0) {
1560                 get_brd_name(adapter, brd_name);
1561
1562                 pr_info("%s: %s Board Chip rev 0x%x\n",
1563                                 module_name(THIS_MODULE),
1564                                 brd_name, adapter->ahw.revision_id);
1565         }
1566
1567         qlcnic_clear_stats(adapter);
1568
1569         qlcnic_setup_intr(adapter);
1570
1571         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
1572         if (err)
1573                 goto err_out_disable_msi;
1574
1575         pci_set_drvdata(pdev, adapter);
1576
1577         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1578
1579         switch (adapter->ahw.port_type) {
1580         case QLCNIC_GBE:
1581                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1582                                 adapter->netdev->name);
1583                 break;
1584         case QLCNIC_XGBE:
1585                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1586                                 adapter->netdev->name);
1587                 break;
1588         }
1589
1590         qlcnic_alloc_lb_filters_mem(adapter);
1591         qlcnic_create_diag_entries(adapter);
1592
1593         return 0;
1594
1595 err_out_disable_msi:
1596         qlcnic_teardown_intr(adapter);
1597
1598 err_out_decr_ref:
1599         qlcnic_clr_all_drv_state(adapter, 0);
1600
1601 err_out_iounmap:
1602         qlcnic_cleanup_pci_map(adapter);
1603
1604 err_out_free_netdev:
1605         free_netdev(netdev);
1606
1607 err_out_free_res:
1608         pci_release_regions(pdev);
1609
1610 err_out_disable_pdev:
1611         pci_set_drvdata(pdev, NULL);
1612         pci_disable_device(pdev);
1613         return err;
1614 }
1615
1616 static void __devexit qlcnic_remove(struct pci_dev *pdev)
1617 {
1618         struct qlcnic_adapter *adapter;
1619         struct net_device *netdev;
1620
1621         adapter = pci_get_drvdata(pdev);
1622         if (adapter == NULL)
1623                 return;
1624
1625         netdev = adapter->netdev;
1626
1627         qlcnic_cancel_fw_work(adapter);
1628
1629         unregister_netdev(netdev);
1630
1631         qlcnic_detach(adapter);
1632
1633         if (adapter->npars != NULL)
1634                 kfree(adapter->npars);
1635         if (adapter->eswitch != NULL)
1636                 kfree(adapter->eswitch);
1637
1638         qlcnic_clr_all_drv_state(adapter, 0);
1639
1640         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1641
1642         qlcnic_free_lb_filters_mem(adapter);
1643
1644         qlcnic_teardown_intr(adapter);
1645
1646         qlcnic_remove_diag_entries(adapter);
1647
1648         qlcnic_cleanup_pci_map(adapter);
1649
1650         qlcnic_release_firmware(adapter);
1651
1652         pci_disable_pcie_error_reporting(pdev);
1653         pci_release_regions(pdev);
1654         pci_disable_device(pdev);
1655         pci_set_drvdata(pdev, NULL);
1656
1657         free_netdev(netdev);
1658 }
1659 static int __qlcnic_shutdown(struct pci_dev *pdev)
1660 {
1661         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1662         struct net_device *netdev = adapter->netdev;
1663         int retval;
1664
1665         netif_device_detach(netdev);
1666
1667         qlcnic_cancel_fw_work(adapter);
1668
1669         if (netif_running(netdev))
1670                 qlcnic_down(adapter, netdev);
1671
1672         qlcnic_clr_all_drv_state(adapter, 0);
1673
1674         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1675
1676         retval = pci_save_state(pdev);
1677         if (retval)
1678                 return retval;
1679
1680         if (qlcnic_wol_supported(adapter)) {
1681                 pci_enable_wake(pdev, PCI_D3cold, 1);
1682                 pci_enable_wake(pdev, PCI_D3hot, 1);
1683         }
1684
1685         return 0;
1686 }
1687
1688 static void qlcnic_shutdown(struct pci_dev *pdev)
1689 {
1690         if (__qlcnic_shutdown(pdev))
1691                 return;
1692
1693         pci_disable_device(pdev);
1694 }
1695
1696 #ifdef CONFIG_PM
1697 static int
1698 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
1699 {
1700         int retval;
1701
1702         retval = __qlcnic_shutdown(pdev);
1703         if (retval)
1704                 return retval;
1705
1706         pci_set_power_state(pdev, pci_choose_state(pdev, state));
1707         return 0;
1708 }
1709
1710 static int
1711 qlcnic_resume(struct pci_dev *pdev)
1712 {
1713         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1714         struct net_device *netdev = adapter->netdev;
1715         int err;
1716
1717         err = pci_enable_device(pdev);
1718         if (err)
1719                 return err;
1720
1721         pci_set_power_state(pdev, PCI_D0);
1722         pci_set_master(pdev);
1723         pci_restore_state(pdev);
1724
1725         err = adapter->nic_ops->start_firmware(adapter);
1726         if (err) {
1727                 dev_err(&pdev->dev, "failed to start firmware\n");
1728                 return err;
1729         }
1730
1731         if (netif_running(netdev)) {
1732                 err = qlcnic_up(adapter, netdev);
1733                 if (err)
1734                         goto done;
1735
1736                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1737         }
1738 done:
1739         netif_device_attach(netdev);
1740         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1741         return 0;
1742 }
1743 #endif
1744
1745 static int qlcnic_open(struct net_device *netdev)
1746 {
1747         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1748         int err;
1749
1750         err = qlcnic_attach(adapter);
1751         if (err)
1752                 return err;
1753
1754         err = __qlcnic_up(adapter, netdev);
1755         if (err)
1756                 goto err_out;
1757
1758         netif_start_queue(netdev);
1759
1760         return 0;
1761
1762 err_out:
1763         qlcnic_detach(adapter);
1764         return err;
1765 }
1766
1767 /*
1768  * qlcnic_close - Disables a network interface entry point
1769  */
1770 static int qlcnic_close(struct net_device *netdev)
1771 {
1772         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1773
1774         __qlcnic_down(adapter, netdev);
1775         return 0;
1776 }
1777
1778 static void
1779 qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
1780 {
1781         void *head;
1782         int i;
1783
1784         if (!qlcnic_mac_learn)
1785                 return;
1786
1787         spin_lock_init(&adapter->mac_learn_lock);
1788
1789         head = kcalloc(QLCNIC_LB_MAX_FILTERS, sizeof(struct hlist_head),
1790                                                                 GFP_KERNEL);
1791         if (!head)
1792                 return;
1793
1794         adapter->fhash.fmax = QLCNIC_LB_MAX_FILTERS;
1795         adapter->fhash.fhead = (struct hlist_head *)head;
1796
1797         for (i = 0; i < adapter->fhash.fmax; i++)
1798                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
1799 }
1800
1801 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
1802 {
1803         if (adapter->fhash.fmax && adapter->fhash.fhead)
1804                 kfree(adapter->fhash.fhead);
1805
1806         adapter->fhash.fhead = NULL;
1807         adapter->fhash.fmax = 0;
1808 }
1809
1810 static void qlcnic_change_filter(struct qlcnic_adapter *adapter,
1811                 u64 uaddr, __le16 vlan_id, struct qlcnic_host_tx_ring *tx_ring)
1812 {
1813         struct cmd_desc_type0 *hwdesc;
1814         struct qlcnic_nic_req *req;
1815         struct qlcnic_mac_req *mac_req;
1816         struct qlcnic_vlan_req *vlan_req;
1817         u32 producer;
1818         u64 word;
1819
1820         producer = tx_ring->producer;
1821         hwdesc = &tx_ring->desc_head[tx_ring->producer];
1822
1823         req = (struct qlcnic_nic_req *)hwdesc;
1824         memset(req, 0, sizeof(struct qlcnic_nic_req));
1825         req->qhdr = cpu_to_le64(QLCNIC_REQUEST << 23);
1826
1827         word = QLCNIC_MAC_EVENT | ((u64)(adapter->portnum) << 16);
1828         req->req_hdr = cpu_to_le64(word);
1829
1830         mac_req = (struct qlcnic_mac_req *)&(req->words[0]);
1831         mac_req->op = vlan_id ? QLCNIC_MAC_VLAN_ADD : QLCNIC_MAC_ADD;
1832         memcpy(mac_req->mac_addr, &uaddr, ETH_ALEN);
1833
1834         vlan_req = (struct qlcnic_vlan_req *)&req->words[1];
1835         vlan_req->vlan_id = vlan_id;
1836
1837         tx_ring->producer = get_next_index(producer, tx_ring->num_desc);
1838 }
1839
1840 #define QLCNIC_MAC_HASH(MAC)\
1841         ((((MAC) & 0x70000) >> 0x10) | (((MAC) & 0x70000000000ULL) >> 0x25))
1842
1843 static void
1844 qlcnic_send_filter(struct qlcnic_adapter *adapter,
1845                 struct qlcnic_host_tx_ring *tx_ring,
1846                 struct cmd_desc_type0 *first_desc,
1847                 struct sk_buff *skb)
1848 {
1849         struct ethhdr *phdr = (struct ethhdr *)(skb->data);
1850         struct qlcnic_filter *fil, *tmp_fil;
1851         struct hlist_node *tmp_hnode, *n;
1852         struct hlist_head *head;
1853         u64 src_addr = 0;
1854         __le16 vlan_id = 0;
1855         u8 hindex;
1856
1857         if (!compare_ether_addr(phdr->h_source, adapter->mac_addr))
1858                 return;
1859
1860         if (adapter->fhash.fnum >= adapter->fhash.fmax)
1861                 return;
1862
1863         /* Only NPAR capable devices support vlan based learning*/
1864         if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
1865                 vlan_id = first_desc->vlan_TCI;
1866         memcpy(&src_addr, phdr->h_source, ETH_ALEN);
1867         hindex = QLCNIC_MAC_HASH(src_addr) & (QLCNIC_LB_MAX_FILTERS - 1);
1868         head = &(adapter->fhash.fhead[hindex]);
1869
1870         hlist_for_each_entry_safe(tmp_fil, tmp_hnode, n, head, fnode) {
1871                 if (!memcmp(tmp_fil->faddr, &src_addr, ETH_ALEN) &&
1872                             tmp_fil->vlan_id == vlan_id) {
1873
1874                         if (jiffies >
1875                             (QLCNIC_READD_AGE * HZ + tmp_fil->ftime))
1876                                 qlcnic_change_filter(adapter, src_addr, vlan_id,
1877                                                                 tx_ring);
1878                         tmp_fil->ftime = jiffies;
1879                         return;
1880                 }
1881         }
1882
1883         fil = kzalloc(sizeof(struct qlcnic_filter), GFP_ATOMIC);
1884         if (!fil)
1885                 return;
1886
1887         qlcnic_change_filter(adapter, src_addr, vlan_id, tx_ring);
1888
1889         fil->ftime = jiffies;
1890         fil->vlan_id = vlan_id;
1891         memcpy(fil->faddr, &src_addr, ETH_ALEN);
1892         spin_lock(&adapter->mac_learn_lock);
1893         hlist_add_head(&(fil->fnode), head);
1894         adapter->fhash.fnum++;
1895         spin_unlock(&adapter->mac_learn_lock);
1896 }
1897
1898 static void
1899 qlcnic_tso_check(struct net_device *netdev,
1900                 struct qlcnic_host_tx_ring *tx_ring,
1901                 struct cmd_desc_type0 *first_desc,
1902                 struct sk_buff *skb)
1903 {
1904         u8 opcode = TX_ETHER_PKT;
1905         __be16 protocol = skb->protocol;
1906         u16 flags = 0;
1907         int copied, offset, copy_len, hdr_len = 0, tso = 0;
1908         struct cmd_desc_type0 *hwdesc;
1909         struct vlan_ethhdr *vh;
1910         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1911         u32 producer = tx_ring->producer;
1912         __le16 vlan_oob = first_desc->flags_opcode &
1913                                 cpu_to_le16(FLAGS_VLAN_OOB);
1914
1915         if (*(skb->data) & BIT_0) {
1916                 flags |= BIT_0;
1917                 memcpy(&first_desc->eth_addr, skb->data, ETH_ALEN);
1918         }
1919
1920         if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1921                         skb_shinfo(skb)->gso_size > 0) {
1922
1923                 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1924
1925                 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1926                 first_desc->total_hdr_length = hdr_len;
1927                 if (vlan_oob) {
1928                         first_desc->total_hdr_length += VLAN_HLEN;
1929                         first_desc->tcp_hdr_offset = VLAN_HLEN;
1930                         first_desc->ip_hdr_offset = VLAN_HLEN;
1931                         /* Only in case of TSO on vlan device */
1932                         flags |= FLAGS_VLAN_TAGGED;
1933                 }
1934
1935                 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1936                                 TX_TCP_LSO6 : TX_TCP_LSO;
1937                 tso = 1;
1938
1939         } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1940                 u8 l4proto;
1941
1942                 if (protocol == cpu_to_be16(ETH_P_IP)) {
1943                         l4proto = ip_hdr(skb)->protocol;
1944
1945                         if (l4proto == IPPROTO_TCP)
1946                                 opcode = TX_TCP_PKT;
1947                         else if (l4proto == IPPROTO_UDP)
1948                                 opcode = TX_UDP_PKT;
1949                 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1950                         l4proto = ipv6_hdr(skb)->nexthdr;
1951
1952                         if (l4proto == IPPROTO_TCP)
1953                                 opcode = TX_TCPV6_PKT;
1954                         else if (l4proto == IPPROTO_UDP)
1955                                 opcode = TX_UDPV6_PKT;
1956                 }
1957         }
1958
1959         first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1960         first_desc->ip_hdr_offset += skb_network_offset(skb);
1961         qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
1962
1963         if (!tso)
1964                 return;
1965
1966         /* For LSO, we need to copy the MAC/IP/TCP headers into
1967          * the descriptor ring
1968          */
1969         copied = 0;
1970         offset = 2;
1971
1972         if (vlan_oob) {
1973                 /* Create a TSO vlan header template for firmware */
1974
1975                 hwdesc = &tx_ring->desc_head[producer];
1976                 tx_ring->cmd_buf_arr[producer].skb = NULL;
1977
1978                 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1979                                 hdr_len + VLAN_HLEN);
1980
1981                 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1982                 skb_copy_from_linear_data(skb, vh, 12);
1983                 vh->h_vlan_proto = htons(ETH_P_8021Q);
1984                 vh->h_vlan_TCI = (__be16)swab16((u16)first_desc->vlan_TCI);
1985
1986                 skb_copy_from_linear_data_offset(skb, 12,
1987                                 (char *)vh + 16, copy_len - 16);
1988
1989                 copied = copy_len - VLAN_HLEN;
1990                 offset = 0;
1991
1992                 producer = get_next_index(producer, tx_ring->num_desc);
1993         }
1994
1995         while (copied < hdr_len) {
1996
1997                 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1998                                 (hdr_len - copied));
1999
2000                 hwdesc = &tx_ring->desc_head[producer];
2001                 tx_ring->cmd_buf_arr[producer].skb = NULL;
2002
2003                 skb_copy_from_linear_data_offset(skb, copied,
2004                                  (char *)hwdesc + offset, copy_len);
2005
2006                 copied += copy_len;
2007                 offset = 0;
2008
2009                 producer = get_next_index(producer, tx_ring->num_desc);
2010         }
2011
2012         tx_ring->producer = producer;
2013         barrier();
2014         adapter->stats.lso_frames++;
2015 }
2016
2017 static int
2018 qlcnic_map_tx_skb(struct pci_dev *pdev,
2019                 struct sk_buff *skb, struct qlcnic_cmd_buffer *pbuf)
2020 {
2021         struct qlcnic_skb_frag *nf;
2022         struct skb_frag_struct *frag;
2023         int i, nr_frags;
2024         dma_addr_t map;
2025
2026         nr_frags = skb_shinfo(skb)->nr_frags;
2027         nf = &pbuf->frag_array[0];
2028
2029         map = pci_map_single(pdev, skb->data,
2030                         skb_headlen(skb), PCI_DMA_TODEVICE);
2031         if (pci_dma_mapping_error(pdev, map))
2032                 goto out_err;
2033
2034         nf->dma = map;
2035         nf->length = skb_headlen(skb);
2036
2037         for (i = 0; i < nr_frags; i++) {
2038                 frag = &skb_shinfo(skb)->frags[i];
2039                 nf = &pbuf->frag_array[i+1];
2040
2041                 map = pci_map_page(pdev, frag->page, frag->page_offset,
2042                                 frag->size, PCI_DMA_TODEVICE);
2043                 if (pci_dma_mapping_error(pdev, map))
2044                         goto unwind;
2045
2046                 nf->dma = map;
2047                 nf->length = frag->size;
2048         }
2049
2050         return 0;
2051
2052 unwind:
2053         while (--i >= 0) {
2054                 nf = &pbuf->frag_array[i+1];
2055                 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
2056         }
2057
2058         nf = &pbuf->frag_array[0];
2059         pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
2060
2061 out_err:
2062         return -ENOMEM;
2063 }
2064
2065 static int
2066 qlcnic_check_tx_tagging(struct qlcnic_adapter *adapter,
2067                         struct sk_buff *skb,
2068                         struct cmd_desc_type0 *first_desc)
2069 {
2070         u8 opcode = 0;
2071         u16 flags = 0;
2072         __be16 protocol = skb->protocol;
2073         struct vlan_ethhdr *vh;
2074
2075         if (protocol == cpu_to_be16(ETH_P_8021Q)) {
2076                 vh = (struct vlan_ethhdr *)skb->data;
2077                 protocol = vh->h_vlan_encapsulated_proto;
2078                 flags = FLAGS_VLAN_TAGGED;
2079                 qlcnic_set_tx_vlan_tci(first_desc, ntohs(vh->h_vlan_TCI));
2080         } else if (vlan_tx_tag_present(skb)) {
2081                 flags = FLAGS_VLAN_OOB;
2082                 qlcnic_set_tx_vlan_tci(first_desc, vlan_tx_tag_get(skb));
2083         }
2084         if (unlikely(adapter->pvid)) {
2085                 if (first_desc->vlan_TCI &&
2086                                 !(adapter->flags & QLCNIC_TAGGING_ENABLED))
2087                         return -EIO;
2088                 if (first_desc->vlan_TCI &&
2089                                 (adapter->flags & QLCNIC_TAGGING_ENABLED))
2090                         goto set_flags;
2091
2092                 flags = FLAGS_VLAN_OOB;
2093                 qlcnic_set_tx_vlan_tci(first_desc, adapter->pvid);
2094         }
2095 set_flags:
2096         qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
2097         return 0;
2098 }
2099
2100 static inline void
2101 qlcnic_clear_cmddesc(u64 *desc)
2102 {
2103         desc[0] = 0ULL;
2104         desc[2] = 0ULL;
2105         desc[7] = 0ULL;
2106 }
2107
2108 netdev_tx_t
2109 qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
2110 {
2111         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2112         struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
2113         struct qlcnic_cmd_buffer *pbuf;
2114         struct qlcnic_skb_frag *buffrag;
2115         struct cmd_desc_type0 *hwdesc, *first_desc;
2116         struct pci_dev *pdev;
2117         struct ethhdr *phdr;
2118         int i, k;
2119
2120         u32 producer;
2121         int frag_count, no_of_desc;
2122         u32 num_txd = tx_ring->num_desc;
2123
2124         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
2125                 netif_stop_queue(netdev);
2126                 return NETDEV_TX_BUSY;
2127         }
2128
2129         if (adapter->flags & QLCNIC_MACSPOOF) {
2130                 phdr = (struct ethhdr *)skb->data;
2131                 if (compare_ether_addr(phdr->h_source,
2132                                         adapter->mac_addr))
2133                         goto drop_packet;
2134         }
2135
2136         frag_count = skb_shinfo(skb)->nr_frags + 1;
2137
2138         /* 4 fragments per cmd des */
2139         no_of_desc = (frag_count + 3) >> 2;
2140
2141         if (unlikely(qlcnic_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
2142                 netif_stop_queue(netdev);
2143                 smp_mb();
2144                 if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH)
2145                         netif_start_queue(netdev);
2146                 else {
2147                         adapter->stats.xmit_off++;
2148                         return NETDEV_TX_BUSY;
2149                 }
2150         }
2151
2152         producer = tx_ring->producer;
2153         pbuf = &tx_ring->cmd_buf_arr[producer];
2154
2155         pdev = adapter->pdev;
2156
2157         first_desc = hwdesc = &tx_ring->desc_head[producer];
2158         qlcnic_clear_cmddesc((u64 *)hwdesc);
2159
2160         if (qlcnic_check_tx_tagging(adapter, skb, first_desc))
2161                 goto drop_packet;
2162
2163         if (qlcnic_map_tx_skb(pdev, skb, pbuf)) {
2164                 adapter->stats.tx_dma_map_error++;
2165                 goto drop_packet;
2166         }
2167
2168         pbuf->skb = skb;
2169         pbuf->frag_count = frag_count;
2170
2171         qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len);
2172         qlcnic_set_tx_port(first_desc, adapter->portnum);
2173
2174         for (i = 0; i < frag_count; i++) {
2175
2176                 k = i % 4;
2177
2178                 if ((k == 0) && (i > 0)) {
2179                         /* move to next desc.*/
2180                         producer = get_next_index(producer, num_txd);
2181                         hwdesc = &tx_ring->desc_head[producer];
2182                         qlcnic_clear_cmddesc((u64 *)hwdesc);
2183                         tx_ring->cmd_buf_arr[producer].skb = NULL;
2184                 }
2185
2186                 buffrag = &pbuf->frag_array[i];
2187
2188                 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
2189                 switch (k) {
2190                 case 0:
2191                         hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
2192                         break;
2193                 case 1:
2194                         hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
2195                         break;
2196                 case 2:
2197                         hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
2198                         break;
2199                 case 3:
2200                         hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
2201                         break;
2202                 }
2203         }
2204
2205         tx_ring->producer = get_next_index(producer, num_txd);
2206
2207         qlcnic_tso_check(netdev, tx_ring, first_desc, skb);
2208
2209         if (qlcnic_mac_learn)
2210                 qlcnic_send_filter(adapter, tx_ring, first_desc, skb);
2211
2212         qlcnic_update_cmd_producer(adapter, tx_ring);
2213
2214         adapter->stats.txbytes += skb->len;
2215         adapter->stats.xmitcalled++;
2216
2217         return NETDEV_TX_OK;
2218
2219 drop_packet:
2220         adapter->stats.txdropped++;
2221         dev_kfree_skb_any(skb);
2222         return NETDEV_TX_OK;
2223 }
2224
2225 static int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2226 {
2227         struct net_device *netdev = adapter->netdev;
2228         u32 temp, temp_state, temp_val;
2229         int rv = 0;
2230
2231         temp = QLCRD32(adapter, CRB_TEMP_STATE);
2232
2233         temp_state = qlcnic_get_temp_state(temp);
2234         temp_val = qlcnic_get_temp_val(temp);
2235
2236         if (temp_state == QLCNIC_TEMP_PANIC) {
2237                 dev_err(&netdev->dev,
2238                        "Device temperature %d degrees C exceeds"
2239                        " maximum allowed. Hardware has been shut down.\n",
2240                        temp_val);
2241                 rv = 1;
2242         } else if (temp_state == QLCNIC_TEMP_WARN) {
2243                 if (adapter->temp == QLCNIC_TEMP_NORMAL) {
2244                         dev_err(&netdev->dev,
2245                                "Device temperature %d degrees C "
2246                                "exceeds operating range."
2247                                " Immediate action needed.\n",
2248                                temp_val);
2249                 }
2250         } else {
2251                 if (adapter->temp == QLCNIC_TEMP_WARN) {
2252                         dev_info(&netdev->dev,
2253                                "Device temperature is now %d degrees C"
2254                                " in normal range.\n", temp_val);
2255                 }
2256         }
2257         adapter->temp = temp_state;
2258         return rv;
2259 }
2260
2261 void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup)
2262 {
2263         struct net_device *netdev = adapter->netdev;
2264
2265         if (adapter->ahw.linkup && !linkup) {
2266                 netdev_info(netdev, "NIC Link is down\n");
2267                 adapter->ahw.linkup = 0;
2268                 if (netif_running(netdev)) {
2269                         netif_carrier_off(netdev);
2270                         netif_stop_queue(netdev);
2271                 }
2272         } else if (!adapter->ahw.linkup && linkup) {
2273                 netdev_info(netdev, "NIC Link is up\n");
2274                 adapter->ahw.linkup = 1;
2275                 if (netif_running(netdev)) {
2276                         netif_carrier_on(netdev);
2277                         netif_wake_queue(netdev);
2278                 }
2279         }
2280 }
2281
2282 static void qlcnic_tx_timeout(struct net_device *netdev)
2283 {
2284         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2285
2286         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2287                 return;
2288
2289         dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2290
2291         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
2292                 adapter->need_fw_reset = 1;
2293         else
2294                 adapter->reset_context = 1;
2295 }
2296
2297 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2298 {
2299         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2300         struct net_device_stats *stats = &netdev->stats;
2301
2302         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2303         stats->tx_packets = adapter->stats.xmitfinished;
2304         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2305         stats->tx_bytes = adapter->stats.txbytes;
2306         stats->rx_dropped = adapter->stats.rxdropped;
2307         stats->tx_dropped = adapter->stats.txdropped;
2308
2309         return stats;
2310 }
2311
2312 static irqreturn_t qlcnic_clear_legacy_intr(struct qlcnic_adapter *adapter)
2313 {
2314         u32 status;
2315
2316         status = readl(adapter->isr_int_vec);
2317
2318         if (!(status & adapter->int_vec_bit))
2319                 return IRQ_NONE;
2320
2321         /* check interrupt state machine, to be sure */
2322         status = readl(adapter->crb_int_state_reg);
2323         if (!ISR_LEGACY_INT_TRIGGERED(status))
2324                 return IRQ_NONE;
2325
2326         writel(0xffffffff, adapter->tgt_status_reg);
2327         /* read twice to ensure write is flushed */
2328         readl(adapter->isr_int_vec);
2329         readl(adapter->isr_int_vec);
2330
2331         return IRQ_HANDLED;
2332 }
2333
2334 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2335 {
2336         struct qlcnic_host_sds_ring *sds_ring = data;
2337         struct qlcnic_adapter *adapter = sds_ring->adapter;
2338
2339         if (adapter->flags & QLCNIC_MSIX_ENABLED)
2340                 goto done;
2341         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2342                 writel(0xffffffff, adapter->tgt_status_reg);
2343                 goto done;
2344         }
2345
2346         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2347                 return IRQ_NONE;
2348
2349 done:
2350         adapter->diag_cnt++;
2351         qlcnic_enable_int(sds_ring);
2352         return IRQ_HANDLED;
2353 }
2354
2355 static irqreturn_t qlcnic_intr(int irq, void *data)
2356 {
2357         struct qlcnic_host_sds_ring *sds_ring = data;
2358         struct qlcnic_adapter *adapter = sds_ring->adapter;
2359
2360         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2361                 return IRQ_NONE;
2362
2363         napi_schedule(&sds_ring->napi);
2364
2365         return IRQ_HANDLED;
2366 }
2367
2368 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2369 {
2370         struct qlcnic_host_sds_ring *sds_ring = data;
2371         struct qlcnic_adapter *adapter = sds_ring->adapter;
2372
2373         /* clear interrupt */
2374         writel(0xffffffff, adapter->tgt_status_reg);
2375
2376         napi_schedule(&sds_ring->napi);
2377         return IRQ_HANDLED;
2378 }
2379
2380 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2381 {
2382         struct qlcnic_host_sds_ring *sds_ring = data;
2383
2384         napi_schedule(&sds_ring->napi);
2385         return IRQ_HANDLED;
2386 }
2387
2388 static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter)
2389 {
2390         u32 sw_consumer, hw_consumer;
2391         int count = 0, i;
2392         struct qlcnic_cmd_buffer *buffer;
2393         struct pci_dev *pdev = adapter->pdev;
2394         struct net_device *netdev = adapter->netdev;
2395         struct qlcnic_skb_frag *frag;
2396         int done;
2397         struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
2398
2399         if (!spin_trylock(&adapter->tx_clean_lock))
2400                 return 1;
2401
2402         sw_consumer = tx_ring->sw_consumer;
2403         hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
2404
2405         while (sw_consumer != hw_consumer) {
2406                 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
2407                 if (buffer->skb) {
2408                         frag = &buffer->frag_array[0];
2409                         pci_unmap_single(pdev, frag->dma, frag->length,
2410                                          PCI_DMA_TODEVICE);
2411                         frag->dma = 0ULL;
2412                         for (i = 1; i < buffer->frag_count; i++) {
2413                                 frag++;
2414                                 pci_unmap_page(pdev, frag->dma, frag->length,
2415                                                PCI_DMA_TODEVICE);
2416                                 frag->dma = 0ULL;
2417                         }
2418
2419                         adapter->stats.xmitfinished++;
2420                         dev_kfree_skb_any(buffer->skb);
2421                         buffer->skb = NULL;
2422                 }
2423
2424                 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
2425                 if (++count >= MAX_STATUS_HANDLE)
2426                         break;
2427         }
2428
2429         if (count && netif_running(netdev)) {
2430                 tx_ring->sw_consumer = sw_consumer;
2431
2432                 smp_mb();
2433
2434                 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
2435                         if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) {
2436                                 netif_wake_queue(netdev);
2437                                 adapter->stats.xmit_on++;
2438                         }
2439                 }
2440                 adapter->tx_timeo_cnt = 0;
2441         }
2442         /*
2443          * If everything is freed up to consumer then check if the ring is full
2444          * If the ring is full then check if more needs to be freed and
2445          * schedule the call back again.
2446          *
2447          * This happens when there are 2 CPUs. One could be freeing and the
2448          * other filling it. If the ring is full when we get out of here and
2449          * the card has already interrupted the host then the host can miss the
2450          * interrupt.
2451          *
2452          * There is still a possible race condition and the host could miss an
2453          * interrupt. The card has to take care of this.
2454          */
2455         hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
2456         done = (sw_consumer == hw_consumer);
2457         spin_unlock(&adapter->tx_clean_lock);
2458
2459         return done;
2460 }
2461
2462 static int qlcnic_poll(struct napi_struct *napi, int budget)
2463 {
2464         struct qlcnic_host_sds_ring *sds_ring =
2465                 container_of(napi, struct qlcnic_host_sds_ring, napi);
2466
2467         struct qlcnic_adapter *adapter = sds_ring->adapter;
2468
2469         int tx_complete;
2470         int work_done;
2471
2472         tx_complete = qlcnic_process_cmd_ring(adapter);
2473
2474         work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2475
2476         if ((work_done < budget) && tx_complete) {
2477                 napi_complete(&sds_ring->napi);
2478                 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2479                         qlcnic_enable_int(sds_ring);
2480         }
2481
2482         return work_done;
2483 }
2484
2485 static int qlcnic_rx_poll(struct napi_struct *napi, int budget)
2486 {
2487         struct qlcnic_host_sds_ring *sds_ring =
2488                 container_of(napi, struct qlcnic_host_sds_ring, napi);
2489
2490         struct qlcnic_adapter *adapter = sds_ring->adapter;
2491         int work_done;
2492
2493         work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2494
2495         if (work_done < budget) {
2496                 napi_complete(&sds_ring->napi);
2497                 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2498                         qlcnic_enable_int(sds_ring);
2499         }
2500
2501         return work_done;
2502 }
2503
2504 #ifdef CONFIG_NET_POLL_CONTROLLER
2505 static void qlcnic_poll_controller(struct net_device *netdev)
2506 {
2507         int ring;
2508         struct qlcnic_host_sds_ring *sds_ring;
2509         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2510         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
2511
2512         disable_irq(adapter->irq);
2513         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2514                 sds_ring = &recv_ctx->sds_rings[ring];
2515                 qlcnic_intr(adapter->irq, sds_ring);
2516         }
2517         enable_irq(adapter->irq);
2518 }
2519 #endif
2520
2521 static void
2522 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2523 {
2524         u32 val;
2525
2526         val = adapter->portnum & 0xf;
2527         val |= encoding << 7;
2528         val |= (jiffies - adapter->dev_rst_time) << 8;
2529
2530         QLCWR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2531         adapter->dev_rst_time = jiffies;
2532 }
2533
2534 static int
2535 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2536 {
2537         u32  val;
2538
2539         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2540                         state != QLCNIC_DEV_NEED_QUISCENT);
2541
2542         if (qlcnic_api_lock(adapter))
2543                 return -EIO;
2544
2545         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2546
2547         if (state == QLCNIC_DEV_NEED_RESET)
2548                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2549         else if (state == QLCNIC_DEV_NEED_QUISCENT)
2550                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2551
2552         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2553
2554         qlcnic_api_unlock(adapter);
2555
2556         return 0;
2557 }
2558
2559 static int
2560 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2561 {
2562         u32  val;
2563
2564         if (qlcnic_api_lock(adapter))
2565                 return -EBUSY;
2566
2567         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2568         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2569         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2570
2571         qlcnic_api_unlock(adapter);
2572
2573         return 0;
2574 }
2575
2576 static void
2577 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2578 {
2579         u32  val;
2580
2581         if (qlcnic_api_lock(adapter))
2582                 goto err;
2583
2584         val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2585         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2586         QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2587
2588         if (failed) {
2589                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
2590                 dev_info(&adapter->pdev->dev,
2591                                 "Device state set to Failed. Please Reboot\n");
2592         } else if (!(val & 0x11111111))
2593                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_COLD);
2594
2595         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2596         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2597         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2598
2599         qlcnic_api_unlock(adapter);
2600 err:
2601         adapter->fw_fail_cnt = 0;
2602         clear_bit(__QLCNIC_START_FW, &adapter->state);
2603         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2604 }
2605
2606 /* Grab api lock, before checking state */
2607 static int
2608 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2609 {
2610         int act, state;
2611
2612         state = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2613         act = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2614
2615         if (((state & 0x11111111) == (act & 0x11111111)) ||
2616                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2617                 return 0;
2618         else
2619                 return 1;
2620 }
2621
2622 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2623 {
2624         u32 val = QLCRD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2625
2626         if (val != QLCNIC_DRV_IDC_VER) {
2627                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2628                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2629         }
2630
2631         return 0;
2632 }
2633
2634 static int
2635 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2636 {
2637         u32 val, prev_state;
2638         u8 dev_init_timeo = adapter->dev_init_timeo;
2639         u8 portnum = adapter->portnum;
2640         u8 ret;
2641
2642         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2643                 return 1;
2644
2645         if (qlcnic_api_lock(adapter))
2646                 return -1;
2647
2648         val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2649         if (!(val & (1 << (portnum * 4)))) {
2650                 QLC_DEV_SET_REF_CNT(val, portnum);
2651                 QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2652         }
2653
2654         prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2655         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2656
2657         switch (prev_state) {
2658         case QLCNIC_DEV_COLD:
2659                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
2660                 QLCWR32(adapter, QLCNIC_CRB_DRV_IDC_VER, QLCNIC_DRV_IDC_VER);
2661                 qlcnic_idc_debug_info(adapter, 0);
2662                 qlcnic_api_unlock(adapter);
2663                 return 1;
2664
2665         case QLCNIC_DEV_READY:
2666                 ret = qlcnic_check_idc_ver(adapter);
2667                 qlcnic_api_unlock(adapter);
2668                 return ret;
2669
2670         case QLCNIC_DEV_NEED_RESET:
2671                 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2672                 QLC_DEV_SET_RST_RDY(val, portnum);
2673                 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2674                 break;
2675
2676         case QLCNIC_DEV_NEED_QUISCENT:
2677                 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2678                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
2679                 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2680                 break;
2681
2682         case QLCNIC_DEV_FAILED:
2683                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
2684                 qlcnic_api_unlock(adapter);
2685                 return -1;
2686
2687         case QLCNIC_DEV_INITIALIZING:
2688         case QLCNIC_DEV_QUISCENT:
2689                 break;
2690         }
2691
2692         qlcnic_api_unlock(adapter);
2693
2694         do {
2695                 msleep(1000);
2696                 prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2697
2698                 if (prev_state == QLCNIC_DEV_QUISCENT)
2699                         continue;
2700         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
2701
2702         if (!dev_init_timeo) {
2703                 dev_err(&adapter->pdev->dev,
2704                         "Waiting for device to initialize timeout\n");
2705                 return -1;
2706         }
2707
2708         if (qlcnic_api_lock(adapter))
2709                 return -1;
2710
2711         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2712         QLC_DEV_CLR_RST_QSCNT(val, portnum);
2713         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2714
2715         ret = qlcnic_check_idc_ver(adapter);
2716         qlcnic_api_unlock(adapter);
2717
2718         return ret;
2719 }
2720
2721 static void
2722 qlcnic_fwinit_work(struct work_struct *work)
2723 {
2724         struct qlcnic_adapter *adapter = container_of(work,
2725                         struct qlcnic_adapter, fw_work.work);
2726         u32 dev_state = 0xf;
2727
2728         if (qlcnic_api_lock(adapter))
2729                 goto err_ret;
2730
2731         dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2732         if (dev_state == QLCNIC_DEV_QUISCENT ||
2733             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2734                 qlcnic_api_unlock(adapter);
2735                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2736                                                 FW_POLL_DELAY * 2);
2737                 return;
2738         }
2739
2740         if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC) {
2741                 qlcnic_api_unlock(adapter);
2742                 goto wait_npar;
2743         }
2744
2745         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2746                 dev_err(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2747                                         adapter->reset_ack_timeo);
2748                 goto skip_ack_check;
2749         }
2750
2751         if (!qlcnic_check_drv_state(adapter)) {
2752 skip_ack_check:
2753                 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2754
2755                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2756                         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE,
2757                                                 QLCNIC_DEV_INITIALIZING);
2758                         set_bit(__QLCNIC_START_FW, &adapter->state);
2759                         QLCDB(adapter, DRV, "Restarting fw\n");
2760                         qlcnic_idc_debug_info(adapter, 0);
2761                 }
2762
2763                 qlcnic_api_unlock(adapter);
2764
2765                 if (!adapter->nic_ops->start_firmware(adapter)) {
2766                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2767                         adapter->fw_wait_cnt = 0;
2768                         return;
2769                 }
2770                 goto err_ret;
2771         }
2772
2773         qlcnic_api_unlock(adapter);
2774
2775 wait_npar:
2776         dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2777         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
2778
2779         switch (dev_state) {
2780         case QLCNIC_DEV_READY:
2781                 if (!adapter->nic_ops->start_firmware(adapter)) {
2782                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2783                         adapter->fw_wait_cnt = 0;
2784                         return;
2785                 }
2786         case QLCNIC_DEV_FAILED:
2787                 break;
2788         default:
2789                 qlcnic_schedule_work(adapter,
2790                         qlcnic_fwinit_work, FW_POLL_DELAY);
2791                 return;
2792         }
2793
2794 err_ret:
2795         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2796                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
2797         netif_device_attach(adapter->netdev);
2798         qlcnic_clr_all_drv_state(adapter, 0);
2799 }
2800
2801 static void
2802 qlcnic_detach_work(struct work_struct *work)
2803 {
2804         struct qlcnic_adapter *adapter = container_of(work,
2805                         struct qlcnic_adapter, fw_work.work);
2806         struct net_device *netdev = adapter->netdev;
2807         u32 status;
2808
2809         netif_device_detach(netdev);
2810
2811         /* Dont grab rtnl lock during Quiscent mode */
2812         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2813                 if (netif_running(netdev))
2814                         __qlcnic_down(adapter, netdev);
2815         } else
2816                 qlcnic_down(adapter, netdev);
2817
2818         status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2819
2820         if (status & QLCNIC_RCODE_FATAL_ERROR)
2821                 goto err_ret;
2822
2823         if (adapter->temp == QLCNIC_TEMP_PANIC)
2824                 goto err_ret;
2825
2826         if (qlcnic_set_drv_state(adapter, adapter->dev_state))
2827                 goto err_ret;
2828
2829         adapter->fw_wait_cnt = 0;
2830
2831         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2832
2833         return;
2834
2835 err_ret:
2836         dev_err(&adapter->pdev->dev, "detach failed; status=%d temp=%d\n",
2837                         status, adapter->temp);
2838         netif_device_attach(netdev);
2839         qlcnic_clr_all_drv_state(adapter, 1);
2840 }
2841
2842 /*Transit NPAR state to NON Operational */
2843 static void
2844 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
2845 {
2846         u32 state;
2847
2848         state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2849         if (state == QLCNIC_DEV_NPAR_NON_OPER)
2850                 return;
2851
2852         if (qlcnic_api_lock(adapter))
2853                 return;
2854         QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
2855         qlcnic_api_unlock(adapter);
2856 }
2857
2858 /* Caller should held RESETTING bit.
2859  * This should be call in sync with qlcnic_request_quiscent_mode.
2860  */
2861 void qlcnic_clear_quiscent_mode(struct qlcnic_adapter *adapter)
2862 {
2863         qlcnic_clr_drv_state(adapter);
2864         qlcnic_api_lock(adapter);
2865         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
2866         qlcnic_api_unlock(adapter);
2867 }
2868
2869 /* Caller should held RESETTING bit.
2870  */
2871 int qlcnic_request_quiscent_mode(struct qlcnic_adapter *adapter)
2872 {
2873         u8 timeo = adapter->dev_init_timeo / 2;
2874         u32 state;
2875
2876         if (qlcnic_api_lock(adapter))
2877                 return -EIO;
2878
2879         state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2880         if (state != QLCNIC_DEV_READY)
2881                 return -EIO;
2882
2883         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_QUISCENT);
2884         qlcnic_api_unlock(adapter);
2885         QLCDB(adapter, DRV, "NEED QUISCENT state set\n");
2886         qlcnic_idc_debug_info(adapter, 0);
2887
2888         qlcnic_set_drv_state(adapter, QLCNIC_DEV_NEED_QUISCENT);
2889
2890         do {
2891                 msleep(2000);
2892                 state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2893                 if (state == QLCNIC_DEV_QUISCENT)
2894                         return 0;
2895                 if (!qlcnic_check_drv_state(adapter)) {
2896                         if (qlcnic_api_lock(adapter))
2897                                 return -EIO;
2898                         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE,
2899                                                         QLCNIC_DEV_QUISCENT);
2900                         qlcnic_api_unlock(adapter);
2901                         QLCDB(adapter, DRV, "QUISCENT mode set\n");
2902                         return 0;
2903                 }
2904         } while (--timeo);
2905
2906         dev_err(&adapter->pdev->dev, "Failed to quiesce device, DRV_STATE=%08x"
2907                 " DRV_ACTIVE=%08x\n", QLCRD32(adapter, QLCNIC_CRB_DRV_STATE),
2908                 QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE));
2909         qlcnic_clear_quiscent_mode(adapter);
2910         return -EIO;
2911 }
2912
2913 /*Transit to RESET state from READY state only */
2914 static void
2915 qlcnic_dev_request_reset(struct qlcnic_adapter *adapter)
2916 {
2917         u32 state;
2918
2919         adapter->need_fw_reset = 1;
2920         if (qlcnic_api_lock(adapter))
2921                 return;
2922
2923         state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2924
2925         if (state == QLCNIC_DEV_READY) {
2926                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_RESET);
2927                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
2928                 qlcnic_idc_debug_info(adapter, 0);
2929         }
2930
2931         QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
2932         qlcnic_api_unlock(adapter);
2933 }
2934
2935 /* Transit to NPAR READY state from NPAR NOT READY state */
2936 static void
2937 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
2938 {
2939         if (qlcnic_api_lock(adapter))
2940                 return;
2941
2942         QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_OPER);
2943         QLCDB(adapter, DRV, "NPAR operational state set\n");
2944
2945         qlcnic_api_unlock(adapter);
2946 }
2947
2948 static void
2949 qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2950                 work_func_t func, int delay)
2951 {
2952         if (test_bit(__QLCNIC_AER, &adapter->state))
2953                 return;
2954
2955         INIT_DELAYED_WORK(&adapter->fw_work, func);
2956         queue_delayed_work(qlcnic_wq, &adapter->fw_work,
2957                                         round_jiffies_relative(delay));
2958 }
2959
2960 static void
2961 qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter)
2962 {
2963         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2964                 msleep(10);
2965
2966         cancel_delayed_work_sync(&adapter->fw_work);
2967 }
2968
2969 static void
2970 qlcnic_attach_work(struct work_struct *work)
2971 {
2972         struct qlcnic_adapter *adapter = container_of(work,
2973                                 struct qlcnic_adapter, fw_work.work);
2974         struct net_device *netdev = adapter->netdev;
2975         u32 npar_state;
2976
2977         if (adapter->op_mode != QLCNIC_MGMT_FUNC) {
2978                 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2979                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
2980                         qlcnic_clr_all_drv_state(adapter, 0);
2981                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
2982                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
2983                                                         FW_POLL_DELAY);
2984                 else
2985                         goto attach;
2986                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
2987                 return;
2988         }
2989 attach:
2990         if (netif_running(netdev)) {
2991                 if (qlcnic_up(adapter, netdev))
2992                         goto done;
2993
2994                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2995         }
2996
2997 done:
2998         netif_device_attach(netdev);
2999         adapter->fw_fail_cnt = 0;
3000         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3001
3002         if (!qlcnic_clr_drv_state(adapter))
3003                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3004                                                         FW_POLL_DELAY);
3005 }
3006
3007 static int
3008 qlcnic_check_health(struct qlcnic_adapter *adapter)
3009 {
3010         u32 state = 0, heartbeat;
3011         struct net_device *netdev = adapter->netdev;
3012
3013         if (qlcnic_check_temp(adapter))
3014                 goto detach;
3015
3016         if (adapter->need_fw_reset)
3017                 qlcnic_dev_request_reset(adapter);
3018
3019         state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
3020         if (state == QLCNIC_DEV_NEED_RESET) {
3021                 qlcnic_set_npar_non_operational(adapter);
3022                 adapter->need_fw_reset = 1;
3023         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3024                 goto detach;
3025
3026         heartbeat = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3027         if (heartbeat != adapter->heartbeat) {
3028                 adapter->heartbeat = heartbeat;
3029                 adapter->fw_fail_cnt = 0;
3030                 if (adapter->need_fw_reset)
3031                         goto detach;
3032
3033                 if (adapter->reset_context &&
3034                     auto_fw_reset == AUTO_FW_RESET_ENABLED) {
3035                         qlcnic_reset_hw_context(adapter);
3036                         adapter->netdev->trans_start = jiffies;
3037                 }
3038
3039                 return 0;
3040         }
3041
3042         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3043                 return 0;
3044
3045         qlcnic_dev_request_reset(adapter);
3046
3047         if ((auto_fw_reset == AUTO_FW_RESET_ENABLED))
3048                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3049
3050         dev_info(&netdev->dev, "firmware hang detected\n");
3051
3052 detach:
3053         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3054                 QLCNIC_DEV_NEED_RESET;
3055
3056         if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
3057                 !test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) {
3058
3059                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3060                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3061         }
3062
3063         return 1;
3064 }
3065
3066 static void
3067 qlcnic_fw_poll_work(struct work_struct *work)
3068 {
3069         struct qlcnic_adapter *adapter = container_of(work,
3070                                 struct qlcnic_adapter, fw_work.work);
3071
3072         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3073                 goto reschedule;
3074
3075
3076         if (qlcnic_check_health(adapter))
3077                 return;
3078
3079         if (adapter->fhash.fnum)
3080                 qlcnic_prune_lb_filters(adapter);
3081
3082 reschedule:
3083         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3084 }
3085
3086 static int qlcnic_is_first_func(struct pci_dev *pdev)
3087 {
3088         struct pci_dev *oth_pdev;
3089         int val = pdev->devfn;
3090
3091         while (val-- > 0) {
3092                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3093                         (pdev->bus), pdev->bus->number,
3094                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3095                 if (!oth_pdev)
3096                         continue;
3097
3098                 if (oth_pdev->current_state != PCI_D3cold) {
3099                         pci_dev_put(oth_pdev);
3100                         return 0;
3101                 }
3102                 pci_dev_put(oth_pdev);
3103         }
3104         return 1;
3105 }
3106
3107 static int qlcnic_attach_func(struct pci_dev *pdev)
3108 {
3109         int err, first_func;
3110         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3111         struct net_device *netdev = adapter->netdev;
3112
3113         pdev->error_state = pci_channel_io_normal;
3114
3115         err = pci_enable_device(pdev);
3116         if (err)
3117                 return err;
3118
3119         pci_set_power_state(pdev, PCI_D0);
3120         pci_set_master(pdev);
3121         pci_restore_state(pdev);
3122
3123         first_func = qlcnic_is_first_func(pdev);
3124
3125         if (qlcnic_api_lock(adapter))
3126                 return -EINVAL;
3127
3128         if (adapter->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3129                 adapter->need_fw_reset = 1;
3130                 set_bit(__QLCNIC_START_FW, &adapter->state);
3131                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
3132                 QLCDB(adapter, DRV, "Restarting fw\n");
3133         }
3134         qlcnic_api_unlock(adapter);
3135
3136         err = adapter->nic_ops->start_firmware(adapter);
3137         if (err)
3138                 return err;
3139
3140         qlcnic_clr_drv_state(adapter);
3141         qlcnic_setup_intr(adapter);
3142
3143         if (netif_running(netdev)) {
3144                 err = qlcnic_attach(adapter);
3145                 if (err) {
3146                         qlcnic_clr_all_drv_state(adapter, 1);
3147                         clear_bit(__QLCNIC_AER, &adapter->state);
3148                         netif_device_attach(netdev);
3149                         return err;
3150                 }
3151
3152                 err = qlcnic_up(adapter, netdev);
3153                 if (err)
3154                         goto done;
3155
3156                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3157         }
3158  done:
3159         netif_device_attach(netdev);
3160         return err;
3161 }
3162
3163 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3164                                                 pci_channel_state_t state)
3165 {
3166         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3167         struct net_device *netdev = adapter->netdev;
3168
3169         if (state == pci_channel_io_perm_failure)
3170                 return PCI_ERS_RESULT_DISCONNECT;
3171
3172         if (state == pci_channel_io_normal)
3173                 return PCI_ERS_RESULT_RECOVERED;
3174
3175         set_bit(__QLCNIC_AER, &adapter->state);
3176         netif_device_detach(netdev);
3177
3178         cancel_delayed_work_sync(&adapter->fw_work);
3179
3180         if (netif_running(netdev))
3181                 qlcnic_down(adapter, netdev);
3182
3183         qlcnic_detach(adapter);
3184         qlcnic_teardown_intr(adapter);
3185
3186         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3187
3188         pci_save_state(pdev);
3189         pci_disable_device(pdev);
3190
3191         return PCI_ERS_RESULT_NEED_RESET;
3192 }
3193
3194 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3195 {
3196         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3197                                 PCI_ERS_RESULT_RECOVERED;
3198 }
3199
3200 static void qlcnic_io_resume(struct pci_dev *pdev)
3201 {
3202         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3203
3204         pci_cleanup_aer_uncorrect_error_status(pdev);
3205
3206         if (QLCRD32(adapter, QLCNIC_CRB_DEV_STATE) == QLCNIC_DEV_READY &&
3207             test_and_clear_bit(__QLCNIC_AER, &adapter->state))
3208                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3209                                                 FW_POLL_DELAY);
3210 }
3211
3212 static int
3213 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3214 {
3215         int err;
3216
3217         err = qlcnic_can_start_firmware(adapter);
3218         if (err)
3219                 return err;
3220
3221         err = qlcnic_check_npar_opertional(adapter);
3222         if (err)
3223                 return err;
3224
3225         err = qlcnic_initialize_nic(adapter);
3226         if (err)
3227                 return err;
3228
3229         qlcnic_check_options(adapter);
3230
3231         err = qlcnic_set_eswitch_port_config(adapter);
3232         if (err)
3233                 return err;
3234
3235         adapter->need_fw_reset = 0;
3236
3237         return err;
3238 }
3239
3240 static int
3241 qlcnicvf_config_bridged_mode(struct qlcnic_adapter *adapter, u32 enable)
3242 {
3243         return -EOPNOTSUPP;
3244 }
3245
3246 static int
3247 qlcnicvf_config_led(struct qlcnic_adapter *adapter, u32 state, u32 rate)
3248 {
3249         return -EOPNOTSUPP;
3250 }
3251
3252 static ssize_t
3253 qlcnic_store_bridged_mode(struct device *dev,
3254                 struct device_attribute *attr, const char *buf, size_t len)
3255 {
3256         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3257         unsigned long new;
3258         int ret = -EINVAL;
3259
3260         if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG))
3261                 goto err_out;
3262
3263         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3264                 goto err_out;
3265
3266         if (strict_strtoul(buf, 2, &new))
3267                 goto err_out;
3268
3269         if (!adapter->nic_ops->config_bridged_mode(adapter, !!new))
3270                 ret = len;
3271
3272 err_out:
3273         return ret;
3274 }
3275
3276 static ssize_t
3277 qlcnic_show_bridged_mode(struct device *dev,
3278                 struct device_attribute *attr, char *buf)
3279 {
3280         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3281         int bridged_mode = 0;
3282
3283         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
3284                 bridged_mode = !!(adapter->flags & QLCNIC_BRIDGE_ENABLED);
3285
3286         return sprintf(buf, "%d\n", bridged_mode);
3287 }
3288
3289 static struct device_attribute dev_attr_bridged_mode = {
3290        .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
3291        .show = qlcnic_show_bridged_mode,
3292        .store = qlcnic_store_bridged_mode,
3293 };
3294
3295 static ssize_t
3296 qlcnic_store_diag_mode(struct device *dev,
3297                 struct device_attribute *attr, const char *buf, size_t len)
3298 {
3299         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3300         unsigned long new;
3301
3302         if (strict_strtoul(buf, 2, &new))
3303                 return -EINVAL;
3304
3305         if (!!new != !!(adapter->flags & QLCNIC_DIAG_ENABLED))
3306                 adapter->flags ^= QLCNIC_DIAG_ENABLED;
3307
3308         return len;
3309 }
3310
3311 static ssize_t
3312 qlcnic_show_diag_mode(struct device *dev,
3313                 struct device_attribute *attr, char *buf)
3314 {
3315         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3316
3317         return sprintf(buf, "%d\n",
3318                         !!(adapter->flags & QLCNIC_DIAG_ENABLED));
3319 }
3320
3321 static struct device_attribute dev_attr_diag_mode = {
3322         .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
3323         .show = qlcnic_show_diag_mode,
3324         .store = qlcnic_store_diag_mode,
3325 };
3326
3327 static int
3328 qlcnic_sysfs_validate_crb(struct qlcnic_adapter *adapter,
3329                 loff_t offset, size_t size)
3330 {
3331         size_t crb_size = 4;
3332
3333         if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
3334                 return -EIO;
3335
3336         if (offset < QLCNIC_PCI_CRBSPACE) {
3337                 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM,
3338                                         QLCNIC_PCI_CAMQM_END))
3339                         crb_size = 8;
3340                 else
3341                         return -EINVAL;
3342         }
3343
3344         if ((size != crb_size) || (offset & (crb_size-1)))
3345                 return  -EINVAL;
3346
3347         return 0;
3348 }
3349
3350 static ssize_t
3351 qlcnic_sysfs_read_crb(struct file *filp, struct kobject *kobj,
3352                 struct bin_attribute *attr,
3353                 char *buf, loff_t offset, size_t size)
3354 {
3355         struct device *dev = container_of(kobj, struct device, kobj);
3356         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3357         u32 data;
3358         u64 qmdata;
3359         int ret;
3360
3361         ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
3362         if (ret != 0)
3363                 return ret;
3364
3365         if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
3366                 qlcnic_pci_camqm_read_2M(adapter, offset, &qmdata);
3367                 memcpy(buf, &qmdata, size);
3368         } else {
3369                 data = QLCRD32(adapter, offset);
3370                 memcpy(buf, &data, size);
3371         }
3372         return size;
3373 }
3374
3375 static ssize_t
3376 qlcnic_sysfs_write_crb(struct file *filp, struct kobject *kobj,
3377                 struct bin_attribute *attr,
3378                 char *buf, loff_t offset, size_t size)
3379 {
3380         struct device *dev = container_of(kobj, struct device, kobj);
3381         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3382         u32 data;
3383         u64 qmdata;
3384         int ret;
3385
3386         ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
3387         if (ret != 0)
3388                 return ret;
3389
3390         if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
3391                 memcpy(&qmdata, buf, size);
3392                 qlcnic_pci_camqm_write_2M(adapter, offset, qmdata);
3393         } else {
3394                 memcpy(&data, buf, size);
3395                 QLCWR32(adapter, offset, data);
3396         }
3397         return size;
3398 }
3399
3400 static int
3401 qlcnic_sysfs_validate_mem(struct qlcnic_adapter *adapter,
3402                 loff_t offset, size_t size)
3403 {
3404         if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
3405                 return -EIO;
3406
3407         if ((size != 8) || (offset & 0x7))
3408                 return  -EIO;
3409
3410         return 0;
3411 }
3412
3413 static ssize_t
3414 qlcnic_sysfs_read_mem(struct file *filp, struct kobject *kobj,
3415                 struct bin_attribute *attr,
3416                 char *buf, loff_t offset, size_t size)
3417 {
3418         struct device *dev = container_of(kobj, struct device, kobj);
3419         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3420         u64 data;
3421         int ret;
3422
3423         ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
3424         if (ret != 0)
3425                 return ret;
3426
3427         if (qlcnic_pci_mem_read_2M(adapter, offset, &data))
3428                 return -EIO;
3429
3430         memcpy(buf, &data, size);
3431
3432         return size;
3433 }
3434
3435 static ssize_t
3436 qlcnic_sysfs_write_mem(struct file *filp, struct kobject *kobj,
3437                 struct bin_attribute *attr,
3438                 char *buf, loff_t offset, size_t size)
3439 {
3440         struct device *dev = container_of(kobj, struct device, kobj);
3441         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3442         u64 data;
3443         int ret;
3444
3445         ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
3446         if (ret != 0)
3447                 return ret;
3448
3449         memcpy(&data, buf, size);
3450
3451         if (qlcnic_pci_mem_write_2M(adapter, offset, data))
3452                 return -EIO;
3453
3454         return size;
3455 }
3456
3457
3458 static struct bin_attribute bin_attr_crb = {
3459         .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
3460         .size = 0,
3461         .read = qlcnic_sysfs_read_crb,
3462         .write = qlcnic_sysfs_write_crb,
3463 };
3464
3465 static struct bin_attribute bin_attr_mem = {
3466         .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
3467         .size = 0,
3468         .read = qlcnic_sysfs_read_mem,
3469         .write = qlcnic_sysfs_write_mem,
3470 };
3471
3472 static int
3473 validate_pm_config(struct qlcnic_adapter *adapter,
3474                         struct qlcnic_pm_func_cfg *pm_cfg, int count)
3475 {
3476
3477         u8 src_pci_func, s_esw_id, d_esw_id;
3478         u8 dest_pci_func;
3479         int i;
3480
3481         for (i = 0; i < count; i++) {
3482                 src_pci_func = pm_cfg[i].pci_func;
3483                 dest_pci_func = pm_cfg[i].dest_npar;
3484                 if (src_pci_func >= QLCNIC_MAX_PCI_FUNC
3485                                 || dest_pci_func >= QLCNIC_MAX_PCI_FUNC)
3486                         return QL_STATUS_INVALID_PARAM;
3487
3488                 if (adapter->npars[src_pci_func].type != QLCNIC_TYPE_NIC)
3489                         return QL_STATUS_INVALID_PARAM;
3490
3491                 if (adapter->npars[dest_pci_func].type != QLCNIC_TYPE_NIC)
3492                         return QL_STATUS_INVALID_PARAM;
3493
3494                 s_esw_id = adapter->npars[src_pci_func].phy_port;
3495                 d_esw_id = adapter->npars[dest_pci_func].phy_port;
3496
3497                 if (s_esw_id != d_esw_id)
3498                         return QL_STATUS_INVALID_PARAM;
3499
3500         }
3501         return 0;
3502
3503 }
3504
3505 static ssize_t
3506 qlcnic_sysfs_write_pm_config(struct file *filp, struct kobject *kobj,
3507         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3508 {
3509         struct device *dev = container_of(kobj, struct device, kobj);
3510         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3511         struct qlcnic_pm_func_cfg *pm_cfg;
3512         u32 id, action, pci_func;
3513         int count, rem, i, ret;
3514
3515         count   = size / sizeof(struct qlcnic_pm_func_cfg);
3516         rem     = size % sizeof(struct qlcnic_pm_func_cfg);
3517         if (rem)
3518                 return QL_STATUS_INVALID_PARAM;
3519
3520         pm_cfg = (struct qlcnic_pm_func_cfg *) buf;
3521
3522         ret = validate_pm_config(adapter, pm_cfg, count);
3523         if (ret)
3524                 return ret;
3525         for (i = 0; i < count; i++) {
3526                 pci_func = pm_cfg[i].pci_func;
3527                 action = !!pm_cfg[i].action;
3528                 id = adapter->npars[pci_func].phy_port;
3529                 ret = qlcnic_config_port_mirroring(adapter, id,
3530                                                 action, pci_func);
3531                 if (ret)
3532                         return ret;
3533         }
3534
3535         for (i = 0; i < count; i++) {
3536                 pci_func = pm_cfg[i].pci_func;
3537                 id = adapter->npars[pci_func].phy_port;
3538                 adapter->npars[pci_func].enable_pm = !!pm_cfg[i].action;
3539                 adapter->npars[pci_func].dest_npar = id;
3540         }
3541         return size;
3542 }
3543
3544 static ssize_t
3545 qlcnic_sysfs_read_pm_config(struct file *filp, struct kobject *kobj,
3546         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3547 {
3548         struct device *dev = container_of(kobj, struct device, kobj);
3549         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3550         struct qlcnic_pm_func_cfg pm_cfg[QLCNIC_MAX_PCI_FUNC];
3551         int i;
3552
3553         if (size != sizeof(pm_cfg))
3554                 return QL_STATUS_INVALID_PARAM;
3555
3556         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
3557                 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3558                         continue;
3559                 pm_cfg[i].action = adapter->npars[i].enable_pm;
3560                 pm_cfg[i].dest_npar = 0;
3561                 pm_cfg[i].pci_func = i;
3562         }
3563         memcpy(buf, &pm_cfg, size);
3564
3565         return size;
3566 }
3567
3568 static int
3569 validate_esw_config(struct qlcnic_adapter *adapter,
3570         struct qlcnic_esw_func_cfg *esw_cfg, int count)
3571 {
3572         u32 op_mode;
3573         u8 pci_func;
3574         int i;
3575
3576         op_mode = readl(adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE);
3577
3578         for (i = 0; i < count; i++) {
3579                 pci_func = esw_cfg[i].pci_func;
3580                 if (pci_func >= QLCNIC_MAX_PCI_FUNC)
3581                         return QL_STATUS_INVALID_PARAM;
3582
3583                 if (adapter->op_mode == QLCNIC_MGMT_FUNC)
3584                         if (adapter->npars[pci_func].type != QLCNIC_TYPE_NIC)
3585                                 return QL_STATUS_INVALID_PARAM;
3586
3587                 switch (esw_cfg[i].op_mode) {
3588                 case QLCNIC_PORT_DEFAULTS:
3589                         if (QLC_DEV_GET_DRV(op_mode, pci_func) !=
3590                                                 QLCNIC_NON_PRIV_FUNC) {
3591                                 esw_cfg[i].mac_anti_spoof = 0;
3592                                 esw_cfg[i].mac_override = 1;
3593                                 esw_cfg[i].promisc_mode = 1;
3594                         }
3595                         break;
3596                 case QLCNIC_ADD_VLAN:
3597                         if (!IS_VALID_VLAN(esw_cfg[i].vlan_id))
3598                                 return QL_STATUS_INVALID_PARAM;
3599                         if (!esw_cfg[i].op_type)
3600                                 return QL_STATUS_INVALID_PARAM;
3601                         break;
3602                 case QLCNIC_DEL_VLAN:
3603                         if (!esw_cfg[i].op_type)
3604                                 return QL_STATUS_INVALID_PARAM;
3605                         break;
3606                 default:
3607                         return QL_STATUS_INVALID_PARAM;
3608                 }
3609         }
3610         return 0;
3611 }
3612
3613 static ssize_t
3614 qlcnic_sysfs_write_esw_config(struct file *file, struct kobject *kobj,
3615         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3616 {
3617         struct device *dev = container_of(kobj, struct device, kobj);
3618         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3619         struct qlcnic_esw_func_cfg *esw_cfg;
3620         struct qlcnic_npar_info *npar;
3621         int count, rem, i, ret;
3622         u8 pci_func, op_mode = 0;
3623
3624         count   = size / sizeof(struct qlcnic_esw_func_cfg);
3625         rem     = size % sizeof(struct qlcnic_esw_func_cfg);
3626         if (rem)
3627                 return QL_STATUS_INVALID_PARAM;
3628
3629         esw_cfg = (struct qlcnic_esw_func_cfg *) buf;
3630         ret = validate_esw_config(adapter, esw_cfg, count);
3631         if (ret)
3632                 return ret;
3633
3634         for (i = 0; i < count; i++) {
3635                 if (adapter->op_mode == QLCNIC_MGMT_FUNC)
3636                         if (qlcnic_config_switch_port(adapter, &esw_cfg[i]))
3637                                 return QL_STATUS_INVALID_PARAM;
3638
3639                 if (adapter->ahw.pci_func != esw_cfg[i].pci_func)
3640                         continue;
3641
3642                 op_mode = esw_cfg[i].op_mode;
3643                 qlcnic_get_eswitch_port_config(adapter, &esw_cfg[i]);
3644                 esw_cfg[i].op_mode = op_mode;
3645                 esw_cfg[i].pci_func = adapter->ahw.pci_func;
3646
3647                 switch (esw_cfg[i].op_mode) {
3648                 case QLCNIC_PORT_DEFAULTS:
3649                         qlcnic_set_eswitch_port_features(adapter, &esw_cfg[i]);
3650                         break;
3651                 case QLCNIC_ADD_VLAN:
3652                         qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
3653                         break;
3654                 case QLCNIC_DEL_VLAN:
3655                         esw_cfg[i].vlan_id = 0;
3656                         qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
3657                         break;
3658                 }
3659         }
3660
3661         if (adapter->op_mode != QLCNIC_MGMT_FUNC)
3662                 goto out;
3663
3664         for (i = 0; i < count; i++) {
3665                 pci_func = esw_cfg[i].pci_func;
3666                 npar = &adapter->npars[pci_func];
3667                 switch (esw_cfg[i].op_mode) {
3668                 case QLCNIC_PORT_DEFAULTS:
3669                         npar->promisc_mode = esw_cfg[i].promisc_mode;
3670                         npar->mac_override = esw_cfg[i].mac_override;
3671                         npar->offload_flags = esw_cfg[i].offload_flags;
3672                         npar->mac_anti_spoof = esw_cfg[i].mac_anti_spoof;
3673                         npar->discard_tagged = esw_cfg[i].discard_tagged;
3674                         break;
3675                 case QLCNIC_ADD_VLAN:
3676                         npar->pvid = esw_cfg[i].vlan_id;
3677                         break;
3678                 case QLCNIC_DEL_VLAN:
3679                         npar->pvid = 0;
3680                         break;
3681                 }
3682         }
3683 out:
3684         return size;
3685 }
3686
3687 static ssize_t
3688 qlcnic_sysfs_read_esw_config(struct file *file, struct kobject *kobj,
3689         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3690 {
3691         struct device *dev = container_of(kobj, struct device, kobj);
3692         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3693         struct qlcnic_esw_func_cfg esw_cfg[QLCNIC_MAX_PCI_FUNC];
3694         u8 i;
3695
3696         if (size != sizeof(esw_cfg))
3697                 return QL_STATUS_INVALID_PARAM;
3698
3699         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
3700                 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3701                         continue;
3702                 esw_cfg[i].pci_func = i;
3703                 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg[i]))
3704                         return QL_STATUS_INVALID_PARAM;
3705         }
3706         memcpy(buf, &esw_cfg, size);
3707
3708         return size;
3709 }
3710
3711 static int
3712 validate_npar_config(struct qlcnic_adapter *adapter,
3713                                 struct qlcnic_npar_func_cfg *np_cfg, int count)
3714 {
3715         u8 pci_func, i;
3716
3717         for (i = 0; i < count; i++) {
3718                 pci_func = np_cfg[i].pci_func;
3719                 if (pci_func >= QLCNIC_MAX_PCI_FUNC)
3720                         return QL_STATUS_INVALID_PARAM;
3721
3722                 if (adapter->npars[pci_func].type != QLCNIC_TYPE_NIC)
3723                         return QL_STATUS_INVALID_PARAM;
3724
3725                 if (!IS_VALID_BW(np_cfg[i].min_bw)
3726                                 || !IS_VALID_BW(np_cfg[i].max_bw)
3727                                 || !IS_VALID_RX_QUEUES(np_cfg[i].max_rx_queues)
3728                                 || !IS_VALID_TX_QUEUES(np_cfg[i].max_tx_queues))
3729                         return QL_STATUS_INVALID_PARAM;
3730         }
3731         return 0;
3732 }
3733
3734 static ssize_t
3735 qlcnic_sysfs_write_npar_config(struct file *file, struct kobject *kobj,
3736         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3737 {
3738         struct device *dev = container_of(kobj, struct device, kobj);
3739         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3740         struct qlcnic_info nic_info;
3741         struct qlcnic_npar_func_cfg *np_cfg;
3742         int i, count, rem, ret;
3743         u8 pci_func;
3744
3745         count   = size / sizeof(struct qlcnic_npar_func_cfg);
3746         rem     = size % sizeof(struct qlcnic_npar_func_cfg);
3747         if (rem)
3748                 return QL_STATUS_INVALID_PARAM;
3749
3750         np_cfg = (struct qlcnic_npar_func_cfg *) buf;
3751         ret = validate_npar_config(adapter, np_cfg, count);
3752         if (ret)
3753                 return ret;
3754
3755         for (i = 0; i < count ; i++) {
3756                 pci_func = np_cfg[i].pci_func;
3757                 ret = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
3758                 if (ret)
3759                         return ret;
3760                 nic_info.pci_func = pci_func;
3761                 nic_info.min_tx_bw = np_cfg[i].min_bw;
3762                 nic_info.max_tx_bw = np_cfg[i].max_bw;
3763                 ret = qlcnic_set_nic_info(adapter, &nic_info);
3764                 if (ret)
3765                         return ret;
3766                 adapter->npars[i].min_bw = nic_info.min_tx_bw;
3767                 adapter->npars[i].max_bw = nic_info.max_tx_bw;
3768         }
3769
3770         return size;
3771
3772 }
3773 static ssize_t
3774 qlcnic_sysfs_read_npar_config(struct file *file, struct kobject *kobj,
3775         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3776 {
3777         struct device *dev = container_of(kobj, struct device, kobj);
3778         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3779         struct qlcnic_info nic_info;
3780         struct qlcnic_npar_func_cfg np_cfg[QLCNIC_MAX_PCI_FUNC];
3781         int i, ret;
3782
3783         if (size != sizeof(np_cfg))
3784                 return QL_STATUS_INVALID_PARAM;
3785
3786         for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) {
3787                 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3788                         continue;
3789                 ret = qlcnic_get_nic_info(adapter, &nic_info, i);
3790                 if (ret)
3791                         return ret;
3792
3793                 np_cfg[i].pci_func = i;
3794                 np_cfg[i].op_mode = (u8)nic_info.op_mode;
3795                 np_cfg[i].port_num = nic_info.phys_port;
3796                 np_cfg[i].fw_capab = nic_info.capabilities;
3797                 np_cfg[i].min_bw = nic_info.min_tx_bw ;
3798                 np_cfg[i].max_bw = nic_info.max_tx_bw;
3799                 np_cfg[i].max_tx_queues = nic_info.max_tx_ques;
3800                 np_cfg[i].max_rx_queues = nic_info.max_rx_ques;
3801         }
3802         memcpy(buf, &np_cfg, size);
3803         return size;
3804 }
3805
3806 static ssize_t
3807 qlcnic_sysfs_get_port_stats(struct file *file, struct kobject *kobj,
3808         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3809 {
3810         struct device *dev = container_of(kobj, struct device, kobj);
3811         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3812         struct qlcnic_esw_statistics port_stats;
3813         int ret;
3814
3815         if (size != sizeof(struct qlcnic_esw_statistics))
3816                 return QL_STATUS_INVALID_PARAM;
3817
3818         if (offset >= QLCNIC_MAX_PCI_FUNC)
3819                 return QL_STATUS_INVALID_PARAM;
3820
3821         memset(&port_stats, 0, size);
3822         ret = qlcnic_get_port_stats(adapter, offset, QLCNIC_QUERY_RX_COUNTER,
3823                                                                 &port_stats.rx);
3824         if (ret)
3825                 return ret;
3826
3827         ret = qlcnic_get_port_stats(adapter, offset, QLCNIC_QUERY_TX_COUNTER,
3828                                                                 &port_stats.tx);
3829         if (ret)
3830                 return ret;
3831
3832         memcpy(buf, &port_stats, size);
3833         return size;
3834 }
3835
3836 static ssize_t
3837 qlcnic_sysfs_get_esw_stats(struct file *file, struct kobject *kobj,
3838         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3839 {
3840         struct device *dev = container_of(kobj, struct device, kobj);
3841         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3842         struct qlcnic_esw_statistics esw_stats;
3843         int ret;
3844
3845         if (size != sizeof(struct qlcnic_esw_statistics))
3846                 return QL_STATUS_INVALID_PARAM;
3847
3848         if (offset >= QLCNIC_NIU_MAX_XG_PORTS)
3849                 return QL_STATUS_INVALID_PARAM;
3850
3851         memset(&esw_stats, 0, size);
3852         ret = qlcnic_get_eswitch_stats(adapter, offset, QLCNIC_QUERY_RX_COUNTER,
3853                                                                 &esw_stats.rx);
3854         if (ret)
3855                 return ret;
3856
3857         ret = qlcnic_get_eswitch_stats(adapter, offset, QLCNIC_QUERY_TX_COUNTER,
3858                                                                 &esw_stats.tx);
3859         if (ret)
3860                 return ret;
3861
3862         memcpy(buf, &esw_stats, size);
3863         return size;
3864 }
3865
3866 static ssize_t
3867 qlcnic_sysfs_clear_esw_stats(struct file *file, struct kobject *kobj,
3868         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3869 {
3870         struct device *dev = container_of(kobj, struct device, kobj);
3871         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3872         int ret;
3873
3874         if (offset >= QLCNIC_NIU_MAX_XG_PORTS)
3875                 return QL_STATUS_INVALID_PARAM;
3876
3877         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_ESWITCH, offset,
3878                                                 QLCNIC_QUERY_RX_COUNTER);
3879         if (ret)
3880                 return ret;
3881
3882         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_ESWITCH, offset,
3883                                                 QLCNIC_QUERY_TX_COUNTER);
3884         if (ret)
3885                 return ret;
3886
3887         return size;
3888 }
3889
3890 static ssize_t
3891 qlcnic_sysfs_clear_port_stats(struct file *file, struct kobject *kobj,
3892         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3893 {
3894
3895         struct device *dev = container_of(kobj, struct device, kobj);
3896         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3897         int ret;
3898
3899         if (offset >= QLCNIC_MAX_PCI_FUNC)
3900                 return QL_STATUS_INVALID_PARAM;
3901
3902         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_PORT, offset,
3903                                                 QLCNIC_QUERY_RX_COUNTER);
3904         if (ret)
3905                 return ret;
3906
3907         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_PORT, offset,
3908                                                 QLCNIC_QUERY_TX_COUNTER);
3909         if (ret)
3910                 return ret;
3911
3912         return size;
3913 }
3914
3915 static ssize_t
3916 qlcnic_sysfs_read_pci_config(struct file *file, struct kobject *kobj,
3917         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3918 {
3919         struct device *dev = container_of(kobj, struct device, kobj);
3920         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3921         struct qlcnic_pci_func_cfg pci_cfg[QLCNIC_MAX_PCI_FUNC];
3922         struct qlcnic_pci_info *pci_info;
3923         int i, ret;
3924
3925         if (size != sizeof(pci_cfg))
3926                 return QL_STATUS_INVALID_PARAM;
3927
3928         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
3929         if (!pci_info)
3930                 return -ENOMEM;
3931
3932         ret = qlcnic_get_pci_info(adapter, pci_info);
3933         if (ret) {
3934                 kfree(pci_info);
3935                 return ret;
3936         }
3937
3938         for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) {
3939                 pci_cfg[i].pci_func = pci_info[i].id;
3940                 pci_cfg[i].func_type = pci_info[i].type;
3941                 pci_cfg[i].port_num = pci_info[i].default_port;
3942                 pci_cfg[i].min_bw = pci_info[i].tx_min_bw;
3943                 pci_cfg[i].max_bw = pci_info[i].tx_max_bw;
3944                 memcpy(&pci_cfg[i].def_mac_addr, &pci_info[i].mac, ETH_ALEN);
3945         }
3946         memcpy(buf, &pci_cfg, size);
3947         kfree(pci_info);
3948         return size;
3949 }
3950 static struct bin_attribute bin_attr_npar_config = {
3951         .attr = {.name = "npar_config", .mode = (S_IRUGO | S_IWUSR)},
3952         .size = 0,
3953         .read = qlcnic_sysfs_read_npar_config,
3954         .write = qlcnic_sysfs_write_npar_config,
3955 };
3956
3957 static struct bin_attribute bin_attr_pci_config = {
3958         .attr = {.name = "pci_config", .mode = (S_IRUGO | S_IWUSR)},
3959         .size = 0,
3960         .read = qlcnic_sysfs_read_pci_config,
3961         .write = NULL,
3962 };
3963
3964 static struct bin_attribute bin_attr_port_stats = {
3965         .attr = {.name = "port_stats", .mode = (S_IRUGO | S_IWUSR)},
3966         .size = 0,
3967         .read = qlcnic_sysfs_get_port_stats,
3968         .write = qlcnic_sysfs_clear_port_stats,
3969 };
3970
3971 static struct bin_attribute bin_attr_esw_stats = {
3972         .attr = {.name = "esw_stats", .mode = (S_IRUGO | S_IWUSR)},
3973         .size = 0,
3974         .read = qlcnic_sysfs_get_esw_stats,
3975         .write = qlcnic_sysfs_clear_esw_stats,
3976 };
3977
3978 static struct bin_attribute bin_attr_esw_config = {
3979         .attr = {.name = "esw_config", .mode = (S_IRUGO | S_IWUSR)},
3980         .size = 0,
3981         .read = qlcnic_sysfs_read_esw_config,
3982         .write = qlcnic_sysfs_write_esw_config,
3983 };
3984
3985 static struct bin_attribute bin_attr_pm_config = {
3986         .attr = {.name = "pm_config", .mode = (S_IRUGO | S_IWUSR)},
3987         .size = 0,
3988         .read = qlcnic_sysfs_read_pm_config,
3989         .write = qlcnic_sysfs_write_pm_config,
3990 };
3991
3992 static void
3993 qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter)
3994 {
3995         struct device *dev = &adapter->pdev->dev;
3996
3997         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
3998                 if (device_create_file(dev, &dev_attr_bridged_mode))
3999                         dev_warn(dev,
4000                                 "failed to create bridged_mode sysfs entry\n");
4001 }
4002
4003 static void
4004 qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter)
4005 {
4006         struct device *dev = &adapter->pdev->dev;
4007
4008         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
4009                 device_remove_file(dev, &dev_attr_bridged_mode);
4010 }
4011
4012 static void
4013 qlcnic_create_diag_entries(struct qlcnic_adapter *adapter)
4014 {
4015         struct device *dev = &adapter->pdev->dev;
4016
4017         if (device_create_bin_file(dev, &bin_attr_port_stats))
4018                 dev_info(dev, "failed to create port stats sysfs entry");
4019
4020         if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
4021                 return;
4022         if (device_create_file(dev, &dev_attr_diag_mode))
4023                 dev_info(dev, "failed to create diag_mode sysfs entry\n");
4024         if (device_create_bin_file(dev, &bin_attr_crb))
4025                 dev_info(dev, "failed to create crb sysfs entry\n");
4026         if (device_create_bin_file(dev, &bin_attr_mem))
4027                 dev_info(dev, "failed to create mem sysfs entry\n");
4028         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
4029                 return;
4030         if (device_create_bin_file(dev, &bin_attr_esw_config))
4031                 dev_info(dev, "failed to create esw config sysfs entry");
4032         if (adapter->op_mode != QLCNIC_MGMT_FUNC)
4033                 return;
4034         if (device_create_bin_file(dev, &bin_attr_pci_config))
4035                 dev_info(dev, "failed to create pci config sysfs entry");
4036         if (device_create_bin_file(dev, &bin_attr_npar_config))
4037                 dev_info(dev, "failed to create npar config sysfs entry");
4038         if (device_create_bin_file(dev, &bin_attr_pm_config))
4039                 dev_info(dev, "failed to create pm config sysfs entry");
4040         if (device_create_bin_file(dev, &bin_attr_esw_stats))
4041                 dev_info(dev, "failed to create eswitch stats sysfs entry");
4042 }
4043
4044 static void
4045 qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter)
4046 {
4047         struct device *dev = &adapter->pdev->dev;
4048
4049         device_remove_bin_file(dev, &bin_attr_port_stats);
4050
4051         if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
4052                 return;
4053         device_remove_file(dev, &dev_attr_diag_mode);
4054         device_remove_bin_file(dev, &bin_attr_crb);
4055         device_remove_bin_file(dev, &bin_attr_mem);
4056         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
4057                 return;
4058         device_remove_bin_file(dev, &bin_attr_esw_config);
4059         if (adapter->op_mode != QLCNIC_MGMT_FUNC)
4060                 return;
4061         device_remove_bin_file(dev, &bin_attr_pci_config);
4062         device_remove_bin_file(dev, &bin_attr_npar_config);
4063         device_remove_bin_file(dev, &bin_attr_pm_config);
4064         device_remove_bin_file(dev, &bin_attr_esw_stats);
4065 }
4066
4067 #ifdef CONFIG_INET
4068
4069 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4070
4071 static void
4072 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4073                         struct net_device *dev, unsigned long event)
4074 {
4075         struct in_device *indev;
4076
4077         indev = in_dev_get(dev);
4078         if (!indev)
4079                 return;
4080
4081         for_ifa(indev) {
4082                 switch (event) {
4083                 case NETDEV_UP:
4084                         qlcnic_config_ipaddr(adapter,
4085                                         ifa->ifa_address, QLCNIC_IP_UP);
4086                         break;
4087                 case NETDEV_DOWN:
4088                         qlcnic_config_ipaddr(adapter,
4089                                         ifa->ifa_address, QLCNIC_IP_DOWN);
4090                         break;
4091                 default:
4092                         break;
4093                 }
4094         } endfor_ifa(indev);
4095
4096         in_dev_put(indev);
4097 }
4098
4099 static void
4100 qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4101 {
4102         struct qlcnic_adapter *adapter = netdev_priv(netdev);
4103         struct net_device *dev;
4104         u16 vid;
4105
4106         qlcnic_config_indev_addr(adapter, netdev, event);
4107
4108         if (!adapter->vlgrp)
4109                 return;
4110
4111         for (vid = 0; vid < VLAN_N_VID; vid++) {
4112                 dev = vlan_group_get_device(adapter->vlgrp, vid);
4113                 if (!dev)
4114                         continue;
4115
4116                 qlcnic_config_indev_addr(adapter, dev, event);
4117         }
4118 }
4119
4120 static int qlcnic_netdev_event(struct notifier_block *this,
4121                                  unsigned long event, void *ptr)
4122 {
4123         struct qlcnic_adapter *adapter;
4124         struct net_device *dev = (struct net_device *)ptr;
4125
4126 recheck:
4127         if (dev == NULL)
4128                 goto done;
4129
4130         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4131                 dev = vlan_dev_real_dev(dev);
4132                 goto recheck;
4133         }
4134
4135         if (!is_qlcnic_netdev(dev))
4136                 goto done;
4137
4138         adapter = netdev_priv(dev);
4139
4140         if (!adapter)
4141                 goto done;
4142
4143         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4144                 goto done;
4145
4146         qlcnic_config_indev_addr(adapter, dev, event);
4147 done:
4148         return NOTIFY_DONE;
4149 }
4150
4151 static int
4152 qlcnic_inetaddr_event(struct notifier_block *this,
4153                 unsigned long event, void *ptr)
4154 {
4155         struct qlcnic_adapter *adapter;
4156         struct net_device *dev;
4157
4158         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4159
4160         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4161
4162 recheck:
4163         if (dev == NULL)
4164                 goto done;
4165
4166         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4167                 dev = vlan_dev_real_dev(dev);
4168                 goto recheck;
4169         }
4170
4171         if (!is_qlcnic_netdev(dev))
4172                 goto done;
4173
4174         adapter = netdev_priv(dev);
4175
4176         if (!adapter)
4177                 goto done;
4178
4179         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4180                 goto done;
4181
4182         switch (event) {
4183         case NETDEV_UP:
4184                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4185                 break;
4186         case NETDEV_DOWN:
4187                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4188                 break;
4189         default:
4190                 break;
4191         }
4192
4193 done:
4194         return NOTIFY_DONE;
4195 }
4196
4197 static struct notifier_block    qlcnic_netdev_cb = {
4198         .notifier_call = qlcnic_netdev_event,
4199 };
4200
4201 static struct notifier_block qlcnic_inetaddr_cb = {
4202         .notifier_call = qlcnic_inetaddr_event,
4203 };
4204 #else
4205 static void
4206 qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4207 { }
4208 #endif
4209 static struct pci_error_handlers qlcnic_err_handler = {
4210         .error_detected = qlcnic_io_error_detected,
4211         .slot_reset = qlcnic_io_slot_reset,
4212         .resume = qlcnic_io_resume,
4213 };
4214
4215 static struct pci_driver qlcnic_driver = {
4216         .name = qlcnic_driver_name,
4217         .id_table = qlcnic_pci_tbl,
4218         .probe = qlcnic_probe,
4219         .remove = __devexit_p(qlcnic_remove),
4220 #ifdef CONFIG_PM
4221         .suspend = qlcnic_suspend,
4222         .resume = qlcnic_resume,
4223 #endif
4224         .shutdown = qlcnic_shutdown,
4225         .err_handler = &qlcnic_err_handler
4226
4227 };
4228
4229 static int __init qlcnic_init_module(void)
4230 {
4231         int ret;
4232
4233         printk(KERN_INFO "%s\n", qlcnic_driver_string);
4234
4235         qlcnic_wq = create_singlethread_workqueue("qlcnic");
4236         if (qlcnic_wq == NULL) {
4237                 printk(KERN_ERR "qlcnic: cannot create workqueue\n");
4238                 return -ENOMEM;
4239         }
4240
4241 #ifdef CONFIG_INET
4242         register_netdevice_notifier(&qlcnic_netdev_cb);
4243         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4244 #endif
4245
4246         ret = pci_register_driver(&qlcnic_driver);
4247         if (ret) {
4248 #ifdef CONFIG_INET
4249                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4250                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4251 #endif
4252                 destroy_workqueue(qlcnic_wq);
4253         }
4254
4255         return ret;
4256 }
4257
4258 module_init(qlcnic_init_module);
4259
4260 static void __exit qlcnic_exit_module(void)
4261 {
4262
4263         pci_unregister_driver(&qlcnic_driver);
4264
4265 #ifdef CONFIG_INET
4266         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4267         unregister_netdevice_notifier(&qlcnic_netdev_cb);
4268 #endif
4269         destroy_workqueue(qlcnic_wq);
4270 }
4271
4272 module_exit(qlcnic_exit_module);