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