drivers/net/qlcnic/qlcnic_main.c

   1 /*
   2  * QLogic qlcnic NIC Driver
   3  * Copyright (c)  2009-2010 QLogic Corporation
   4  *
   5  * See LICENSE.qlcnic for copyright and licensing details.
   6  */
   7
   8 #include <linux/slab.h>
   9 #include <linux/vmalloc.h>
  10 #include <linux/interrupt.h>
  11
  12 #include "qlcnic.h"
  13
  14 #include <linux/swab.h>
  15 #include <linux/dma-mapping.h>
  16 #include <linux/if_vlan.h>
  17 #include <net/ip.h>
  18 #include <linux/ipv6.h>
  19 #include <linux/inetdevice.h>
  20 #include <linux/sysfs.h>
  21 #include <linux/aer.h>
  22
  23 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
  24 MODULE_LICENSE("GPL");
  25 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
  26 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
  27
  28 char qlcnic_driver_name[] = "qlcnic";
  29 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
  30         "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
  31
  32 static struct workqueue_struct *qlcnic_wq;
  33 static int qlcnic_mac_learn;
  34 module_param(qlcnic_mac_learn, int, 0444);
  35 MODULE_PARM_DESC(qlcnic_mac_learn, "Mac Filter (0=disabled, 1=enabled)");
  36
  37 static int use_msi = 1;
  38 module_param(use_msi, int, 0444);
  39 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled");
  40
  41 static int use_msi_x = 1;
  42 module_param(use_msi_x, int, 0444);
  43 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled");
  44
  45 static int auto_fw_reset = 1;
  46 module_param(auto_fw_reset, int, 0644);
  47 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled");
  48
  49 static int load_fw_file;
  50 module_param(load_fw_file, int, 0444);
  51 MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file");
  52
  53 static int qlcnic_config_npars;
  54 module_param(qlcnic_config_npars, int, 0444);
  55 MODULE_PARM_DESC(qlcnic_config_npars, "Configure NPARs (0=disabled, 1=enabled");
  56
  57 static int __devinit qlcnic_probe(struct pci_dev *pdev,
  58                 const struct pci_device_id *ent);
  59 static void __devexit qlcnic_remove(struct pci_dev *pdev);
  60 static int qlcnic_open(struct net_device *netdev);
  61 static int qlcnic_close(struct net_device *netdev);
  62 static void qlcnic_tx_timeout(struct net_device *netdev);
  63 static void qlcnic_attach_work(struct work_struct *work);
  64 static void qlcnic_fwinit_work(struct work_struct *work);
  65 static void qlcnic_fw_poll_work(struct work_struct *work);
  66 static void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
  67                 work_func_t func, int delay);
  68 static void qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter);
  69 static int qlcnic_poll(struct napi_struct *napi, int budget);
  70 static int qlcnic_rx_poll(struct napi_struct *napi, int budget);
  71 #ifdef CONFIG_NET_POLL_CONTROLLER
  72 static void qlcnic_poll_controller(struct net_device *netdev);
  73 #endif
  74
  75 static void qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter);
  76 static void qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter);
  77 static void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter);
  78 static void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter);
  79
  80 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
  81 static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8);
  82 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
  83
  84 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
  85 static irqreturn_t qlcnic_intr(int irq, void *data);
  86 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
  87 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
  88
  89 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
  90 static void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long);
  91 static int qlcnic_start_firmware(struct qlcnic_adapter *);
  92
  93 static void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter);
  94 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
  95 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
  96 static int qlcnicvf_config_led(struct qlcnic_adapter *, u32, u32);
  97 static int qlcnicvf_config_bridged_mode(struct qlcnic_adapter *, u32);
  98 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
  99 static void qlcnic_set_netdev_features(struct qlcnic_adapter *,
 100                                 struct qlcnic_esw_func_cfg *);
 101 /*  PCI Device ID Table  */
 102 #define ENTRY(device) \
 103         {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
 104         .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
 105
 106 #define PCI_DEVICE_ID_QLOGIC_QLE824X  0x8020
 107
 108 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
 109         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
 110         {0,}
 111 };
 112
 113 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
 114
 115
 116 void
 117 qlcnic_update_cmd_producer(struct qlcnic_adapter *adapter,
 118                 struct qlcnic_host_tx_ring *tx_ring)
 119 {
 120         writel(tx_ring->producer, tx_ring->crb_cmd_producer);
 121 }
 122
 123 static const u32 msi_tgt_status[8] = {
 124         ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
 125         ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
 126         ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
 127         ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
 128 };
 129
 130 static const
 131 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
 132
 133 static inline void qlcnic_disable_int(struct qlcnic_host_sds_ring *sds_ring)
 134 {
 135         writel(0, sds_ring->crb_intr_mask);
 136 }
 137
 138 static inline void qlcnic_enable_int(struct qlcnic_host_sds_ring *sds_ring)
 139 {
 140         struct qlcnic_adapter *adapter = sds_ring->adapter;
 141
 142         writel(0x1, sds_ring->crb_intr_mask);
 143
 144         if (!QLCNIC_IS_MSI_FAMILY(adapter))
 145                 writel(0xfbff, adapter->tgt_mask_reg);
 146 }
 147
 148 static int
 149 qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
 150 {
 151         int size = sizeof(struct qlcnic_host_sds_ring) * count;
 152
 153         recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
 154
 155         return recv_ctx->sds_rings == NULL;
 156 }
 157
 158 static void
 159 qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
 160 {
 161         if (recv_ctx->sds_rings != NULL)
 162                 kfree(recv_ctx->sds_rings);
 163
 164         recv_ctx->sds_rings = NULL;
 165 }
 166
 167 static int
 168 qlcnic_napi_add(struct qlcnic_adapter *adapter, struct net_device *netdev)
 169 {
 170         int ring;
 171         struct qlcnic_host_sds_ring *sds_ring;
 172         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
 173
 174         if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
 175                 return -ENOMEM;
 176
 177         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 178                 sds_ring = &recv_ctx->sds_rings[ring];
 179
 180                 if (ring == adapter->max_sds_rings - 1)
 181                         netif_napi_add(netdev, &sds_ring->napi, qlcnic_poll,
 182                                 QLCNIC_NETDEV_WEIGHT/adapter->max_sds_rings);
 183                 else
 184                         netif_napi_add(netdev, &sds_ring->napi,
 185                                 qlcnic_rx_poll, QLCNIC_NETDEV_WEIGHT*2);
 186         }
 187
 188         return 0;
 189 }
 190
 191 static void
 192 qlcnic_napi_del(struct qlcnic_adapter *adapter)
 193 {
 194         int ring;
 195         struct qlcnic_host_sds_ring *sds_ring;
 196         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
 197
 198         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 199                 sds_ring = &recv_ctx->sds_rings[ring];
 200                 netif_napi_del(&sds_ring->napi);
 201         }
 202
 203         qlcnic_free_sds_rings(&adapter->recv_ctx);
 204 }
 205
 206 static void
 207 qlcnic_napi_enable(struct qlcnic_adapter *adapter)
 208 {
 209         int ring;
 210         struct qlcnic_host_sds_ring *sds_ring;
 211         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
 212
 213         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
 214                 return;
 215
 216         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 217                 sds_ring = &recv_ctx->sds_rings[ring];
 218                 napi_enable(&sds_ring->napi);
 219                 qlcnic_enable_int(sds_ring);
 220         }
 221 }
 222
 223 static void
 224 qlcnic_napi_disable(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                 qlcnic_disable_int(sds_ring);
 236                 napi_synchronize(&sds_ring->napi);
 237                 napi_disable(&sds_ring->napi);
 238         }
 239 }
 240
 241 static void qlcnic_clear_stats(struct qlcnic_adapter *adapter)
 242 {
 243         memset(&adapter->stats, 0, sizeof(adapter->stats));
 244 }
 245
 246 static void qlcnic_set_msix_bit(struct pci_dev *pdev, int enable)
 247 {
 248         u32 control;
 249         int pos;
 250
 251         pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
 252         if (pos) {
 253                 pci_read_config_dword(pdev, pos, &control);
 254                 if (enable)
 255                         control |= PCI_MSIX_FLAGS_ENABLE;
 256                 else
 257                         control = 0;
 258                 pci_write_config_dword(pdev, pos, control);
 259         }
 260 }
 261
 262 static void qlcnic_init_msix_entries(struct qlcnic_adapter *adapter, int count)
 263 {
 264         int i;
 265
 266         for (i = 0; i < count; i++)
 267                 adapter->msix_entries[i].entry = i;
 268 }
 269
 270 static int
 271 qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
 272 {
 273         u8 mac_addr[ETH_ALEN];
 274         struct net_device *netdev = adapter->netdev;
 275         struct pci_dev *pdev = adapter->pdev;
 276
 277         if (qlcnic_get_mac_address(adapter, mac_addr) != 0)
 278                 return -EIO;
 279
 280         memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
 281         memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
 282         memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
 283
 284         /* set station address */
 285
 286         if (!is_valid_ether_addr(netdev->perm_addr))
 287                 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
 288                                         netdev->dev_addr);
 289
 290         return 0;
 291 }
 292
 293 static int qlcnic_set_mac(struct net_device *netdev, void *p)
 294 {
 295         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 296         struct sockaddr *addr = p;
 297
 298         if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
 299                 return -EOPNOTSUPP;
 300
 301         if (!is_valid_ether_addr(addr->sa_data))
 302                 return -EINVAL;
 303
 304         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 305                 netif_device_detach(netdev);
 306                 qlcnic_napi_disable(adapter);
 307         }
 308
 309         memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
 310         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 311         qlcnic_set_multi(adapter->netdev);
 312
 313         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 314                 netif_device_attach(netdev);
 315                 qlcnic_napi_enable(adapter);
 316         }
 317         return 0;
 318 }
 319
 320 static void qlcnic_vlan_rx_register(struct net_device *netdev,
 321                 struct vlan_group *grp)
 322 {
 323         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 324         adapter->vlgrp = grp;
 325 }
 326
 327 static const struct net_device_ops qlcnic_netdev_ops = {
 328         .ndo_open          = qlcnic_open,
 329         .ndo_stop          = qlcnic_close,
 330         .ndo_start_xmit    = qlcnic_xmit_frame,
 331         .ndo_get_stats     = qlcnic_get_stats,
 332         .ndo_validate_addr = eth_validate_addr,
 333         .ndo_set_multicast_list = qlcnic_set_multi,
 334         .ndo_set_mac_address    = qlcnic_set_mac,
 335         .ndo_change_mtu    = qlcnic_change_mtu,
 336         .ndo_tx_timeout    = qlcnic_tx_timeout,
 337         .ndo_vlan_rx_register = qlcnic_vlan_rx_register,
 338 #ifdef CONFIG_NET_POLL_CONTROLLER
 339         .ndo_poll_controller = qlcnic_poll_controller,
 340 #endif
 341 };
 342
 343 static struct qlcnic_nic_template qlcnic_ops = {
 344         .config_bridged_mode = qlcnic_config_bridged_mode,
 345         .config_led = qlcnic_config_led,
 346         .start_firmware = qlcnic_start_firmware
 347 };
 348
 349 static struct qlcnic_nic_template qlcnic_vf_ops = {
 350         .config_bridged_mode = qlcnicvf_config_bridged_mode,
 351         .config_led = qlcnicvf_config_led,
 352         .start_firmware = qlcnicvf_start_firmware
 353 };
 354
 355 static void
 356 qlcnic_setup_intr(struct qlcnic_adapter *adapter)
 357 {
 358         const struct qlcnic_legacy_intr_set *legacy_intrp;
 359         struct pci_dev *pdev = adapter->pdev;
 360         int err, num_msix;
 361
 362         if (adapter->rss_supported) {
 363                 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
 364                         MSIX_ENTRIES_PER_ADAPTER : 2;
 365         } else
 366                 num_msix = 1;
 367
 368         adapter->max_sds_rings = 1;
 369
 370         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 371
 372         legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
 373
 374         adapter->int_vec_bit = legacy_intrp->int_vec_bit;
 375         adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
 376                         legacy_intrp->tgt_status_reg);
 377         adapter->tgt_mask_reg = qlcnic_get_ioaddr(adapter,
 378                         legacy_intrp->tgt_mask_reg);
 379         adapter->isr_int_vec = qlcnic_get_ioaddr(adapter, ISR_INT_VECTOR);
 380
 381         adapter->crb_int_state_reg = qlcnic_get_ioaddr(adapter,
 382                         ISR_INT_STATE_REG);
 383
 384         qlcnic_set_msix_bit(pdev, 0);
 385
 386         if (adapter->msix_supported) {
 387
 388                 qlcnic_init_msix_entries(adapter, num_msix);
 389                 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
 390                 if (err == 0) {
 391                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 392                         qlcnic_set_msix_bit(pdev, 1);
 393
 394                         if (adapter->rss_supported)
 395                                 adapter->max_sds_rings = num_msix;
 396
 397                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 398                         return;
 399                 }
 400
 401                 if (err > 0)
 402                         pci_disable_msix(pdev);
 403
 404                 /* fall through for msi */
 405         }
 406
 407         if (use_msi && !pci_enable_msi(pdev)) {
 408                 adapter->flags |= QLCNIC_MSI_ENABLED;
 409                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
 410                                 msi_tgt_status[adapter->ahw.pci_func]);
 411                 dev_info(&pdev->dev, "using msi interrupts\n");
 412                 adapter->msix_entries[0].vector = pdev->irq;
 413                 return;
 414         }
 415
 416         dev_info(&pdev->dev, "using legacy interrupts\n");
 417         adapter->msix_entries[0].vector = pdev->irq;
 418 }
 419
 420 static void
 421 qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 422 {
 423         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 424                 pci_disable_msix(adapter->pdev);
 425         if (adapter->flags & QLCNIC_MSI_ENABLED)
 426                 pci_disable_msi(adapter->pdev);
 427 }
 428
 429 static void
 430 qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter)
 431 {
 432         if (adapter->ahw.pci_base0 != NULL)
 433                 iounmap(adapter->ahw.pci_base0);
 434 }
 435
 436 static int
 437 qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 438 {
 439         struct qlcnic_pci_info *pci_info;
 440         int i, ret = 0;
 441         u8 pfn;
 442
 443         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 444         if (!pci_info)
 445                 return -ENOMEM;
 446
 447         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
 448                                 QLCNIC_MAX_PCI_FUNC, GFP_KERNEL);
 449         if (!adapter->npars) {
 450                 ret = -ENOMEM;
 451                 goto err_pci_info;
 452         }
 453
 454         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
 455                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
 456         if (!adapter->eswitch) {
 457                 ret = -ENOMEM;
 458                 goto err_npars;
 459         }
 460
 461         ret = qlcnic_get_pci_info(adapter, pci_info);
 462         if (ret)
 463                 goto err_eswitch;
 464
 465         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 466                 pfn = pci_info[i].id;
 467                 if (pfn > QLCNIC_MAX_PCI_FUNC)
 468                         return QL_STATUS_INVALID_PARAM;
 469                 adapter->npars[pfn].active = (u8)pci_info[i].active;
 470                 adapter->npars[pfn].type = (u8)pci_info[i].type;
 471                 adapter->npars[pfn].phy_port = (u8)pci_info[i].default_port;
 472                 adapter->npars[pfn].min_bw = pci_info[i].tx_min_bw;
 473                 adapter->npars[pfn].max_bw = pci_info[i].tx_max_bw;
 474         }
 475
 476         for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
 477                 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
 478
 479         kfree(pci_info);
 480         return 0;
 481
 482 err_eswitch:
 483         kfree(adapter->eswitch);
 484         adapter->eswitch = NULL;
 485 err_npars:
 486         kfree(adapter->npars);
 487         adapter->npars = NULL;
 488 err_pci_info:
 489         kfree(pci_info);
 490
 491         return ret;
 492 }
 493
 494 static int
 495 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
 496 {
 497         u8 id;
 498         u32 ref_count;
 499         int i, ret = 1;
 500         u32 data = QLCNIC_MGMT_FUNC;
 501         void __iomem *priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE;
 502
 503         /* If other drivers are not in use set their privilege level */
 504         ref_count = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
 505         ret = qlcnic_api_lock(adapter);
 506         if (ret)
 507                 goto err_lock;
 508
 509         if (qlcnic_config_npars) {
 510                 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 511                         id = i;
 512                         if (adapter->npars[i].type != QLCNIC_TYPE_NIC ||
 513                                 id == adapter->ahw.pci_func)
 514                                 continue;
 515                         data |= (qlcnic_config_npars &
 516                                         QLC_DEV_SET_DRV(0xf, id));
 517                 }
 518         } else {
 519                 data = readl(priv_op);
 520                 data = (data & ~QLC_DEV_SET_DRV(0xf, adapter->ahw.pci_func)) |
 521                         (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
 522                         adapter->ahw.pci_func));
 523         }
 524         writel(data, priv_op);
 525         qlcnic_api_unlock(adapter);
 526 err_lock:
 527         return ret;
 528 }
 529
 530 static void
 531 qlcnic_check_vf(struct qlcnic_adapter *adapter)
 532 {
 533         void __iomem *msix_base_addr;
 534         void __iomem *priv_op;
 535         u32 func;
 536         u32 msix_base;
 537         u32 op_mode, priv_level;
 538
 539         /* Determine FW API version */
 540         adapter->fw_hal_version = readl(adapter->ahw.pci_base0 + QLCNIC_FW_API);
 541
 542         /* Find PCI function number */
 543         pci_read_config_dword(adapter->pdev, QLCNIC_MSIX_TABLE_OFFSET, &func);
 544         msix_base_addr = adapter->ahw.pci_base0 + QLCNIC_MSIX_BASE;
 545         msix_base = readl(msix_base_addr);
 546         func = (func - msix_base)/QLCNIC_MSIX_TBL_PGSIZE;
 547         adapter->ahw.pci_func = func;
 548
 549         /* Determine function privilege level */
 550         priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE;
 551         op_mode = readl(priv_op);
 552         if (op_mode == QLC_DEV_DRV_DEFAULT)
 553                 priv_level = QLCNIC_MGMT_FUNC;
 554         else
 555                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw.pci_func);
 556
 557         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
 558                 adapter->op_mode = QLCNIC_NON_PRIV_FUNC;
 559                 dev_info(&adapter->pdev->dev,
 560                         "HAL Version: %d Non Privileged function\n",
 561                         adapter->fw_hal_version);
 562                 adapter->nic_ops = &qlcnic_vf_ops;
 563         } else
 564                 adapter->nic_ops = &qlcnic_ops;
 565 }
 566
 567 static int
 568 qlcnic_setup_pci_map(struct qlcnic_adapter *adapter)
 569 {
 570         void __iomem *mem_ptr0 = NULL;
 571         resource_size_t mem_base;
 572         unsigned long mem_len, pci_len0 = 0;
 573
 574         struct pci_dev *pdev = adapter->pdev;
 575
 576         /* remap phys address */
 577         mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
 578         mem_len = pci_resource_len(pdev, 0);
 579
 580         if (mem_len == QLCNIC_PCI_2MB_SIZE) {
 581
 582                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
 583                 if (mem_ptr0 == NULL) {
 584                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
 585                         return -EIO;
 586                 }
 587                 pci_len0 = mem_len;
 588         } else {
 589                 return -EIO;
 590         }
 591
 592         dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
 593
 594         adapter->ahw.pci_base0 = mem_ptr0;
 595         adapter->ahw.pci_len0 = pci_len0;
 596
 597         qlcnic_check_vf(adapter);
 598
 599         adapter->ahw.ocm_win_crb = qlcnic_get_ioaddr(adapter,
 600                 QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(adapter->ahw.pci_func)));
 601
 602         return 0;
 603 }
 604
 605 static void get_brd_name(struct qlcnic_adapter *adapter, char *name)
 606 {
 607         struct pci_dev *pdev = adapter->pdev;
 608         int i, found = 0;
 609
 610         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
 611                 if (qlcnic_boards[i].vendor == pdev->vendor &&
 612                         qlcnic_boards[i].device == pdev->device &&
 613                         qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
 614                         qlcnic_boards[i].sub_device == pdev->subsystem_device) {
 615                                 sprintf(name, "%pM: %s" ,
 616                                         adapter->mac_addr,
 617                                         qlcnic_boards[i].short_name);
 618                                 found = 1;
 619                                 break;
 620                 }
 621
 622         }
 623
 624         if (!found)
 625                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
 626 }
 627
 628 static void
 629 qlcnic_check_options(struct qlcnic_adapter *adapter)
 630 {
 631         u32 fw_major, fw_minor, fw_build;
 632         struct pci_dev *pdev = adapter->pdev;
 633
 634         fw_major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
 635         fw_minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
 636         fw_build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
 637
 638         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
 639
 640         dev_info(&pdev->dev, "firmware v%d.%d.%d\n",
 641                         fw_major, fw_minor, fw_build);
 642         if (adapter->ahw.port_type == QLCNIC_XGBE) {
 643                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 644                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
 645                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
 646                 } else {
 647                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
 648                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
 649                 }
 650
 651                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 652                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 653
 654         } else if (adapter->ahw.port_type == QLCNIC_GBE) {
 655                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
 656                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 657                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 658                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
 659         }
 660
 661         adapter->msix_supported = !!use_msi_x;
 662         adapter->rss_supported = !!use_msi_x;
 663
 664         adapter->num_txd = MAX_CMD_DESCRIPTORS;
 665
 666         adapter->max_rds_rings = MAX_RDS_RINGS;
 667 }
 668
 669 static int
 670 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
 671 {
 672         int err;
 673         struct qlcnic_info nic_info;
 674
 675         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw.pci_func);
 676         if (err)
 677                 return err;
 678
 679         adapter->physical_port = (u8)nic_info.phys_port;
 680         adapter->switch_mode = nic_info.switch_mode;
 681         adapter->max_tx_ques = nic_info.max_tx_ques;
 682         adapter->max_rx_ques = nic_info.max_rx_ques;
 683         adapter->capabilities = nic_info.capabilities;
 684         adapter->max_mac_filters = nic_info.max_mac_filters;
 685         adapter->max_mtu = nic_info.max_mtu;
 686
 687         if (adapter->capabilities & BIT_6)
 688                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
 689         else
 690                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
 691
 692         return err;
 693 }
 694
 695 static void
 696 qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
 697                 struct qlcnic_esw_func_cfg *esw_cfg)
 698 {
 699         if (esw_cfg->discard_tagged)
 700                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
 701         else
 702                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
 703
 704         if (esw_cfg->vlan_id)
 705                 adapter->pvid = esw_cfg->vlan_id;
 706         else
 707                 adapter->pvid = 0;
 708 }
 709
 710 static void
 711 qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
 712                 struct qlcnic_esw_func_cfg *esw_cfg)
 713 {
 714         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
 715                                 QLCNIC_PROMISC_DISABLED);
 716
 717         if (esw_cfg->mac_anti_spoof)
 718                 adapter->flags |= QLCNIC_MACSPOOF;
 719
 720         if (!esw_cfg->mac_override)
 721                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
 722
 723         if (!esw_cfg->promisc_mode)
 724                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
 725
 726         qlcnic_set_netdev_features(adapter, esw_cfg);
 727 }
 728
 729 static int
 730 qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
 731 {
 732         struct qlcnic_esw_func_cfg esw_cfg;
 733
 734         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
 735                 return 0;
 736
 737         esw_cfg.pci_func = adapter->ahw.pci_func;
 738         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
 739                         return -EIO;
 740         qlcnic_set_vlan_config(adapter, &esw_cfg);
 741         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
 742
 743         return 0;
 744 }
 745
 746 static void
 747 qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
 748                 struct qlcnic_esw_func_cfg *esw_cfg)
 749 {
 750         struct net_device *netdev = adapter->netdev;
 751         unsigned long features, vlan_features;
 752
 753         features = (NETIF_F_SG | NETIF_F_IP_CSUM |
 754                         NETIF_F_IPV6_CSUM | NETIF_F_GRO);
 755         vlan_features = (NETIF_F_SG | NETIF_F_IP_CSUM |
 756                         NETIF_F_IPV6_CSUM);
 757
 758         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO) {
 759                 features |= (NETIF_F_TSO | NETIF_F_TSO6);
 760                 vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
 761         }
 762         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
 763                 features |= NETIF_F_LRO;
 764
 765         if (esw_cfg->offload_flags & BIT_0) {
 766                 netdev->features |= features;
 767                 adapter->rx_csum = 1;
 768                 if (!(esw_cfg->offload_flags & BIT_1))
 769                         netdev->features &= ~NETIF_F_TSO;
 770                 if (!(esw_cfg->offload_flags & BIT_2))
 771                         netdev->features &= ~NETIF_F_TSO6;
 772         } else {
 773                 netdev->features &= ~features;
 774                 adapter->rx_csum = 0;
 775         }
 776
 777         netdev->vlan_features = (features & vlan_features);
 778 }
 779
 780 static int
 781 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
 782 {
 783         void __iomem *priv_op;
 784         u32 op_mode, priv_level;
 785         int err = 0;
 786
 787         err = qlcnic_initialize_nic(adapter);
 788         if (err)
 789                 return err;
 790
 791         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
 792                 return 0;
 793
 794         priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE;
 795         op_mode = readl(priv_op);
 796         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw.pci_func);
 797
 798         if (op_mode == QLC_DEV_DRV_DEFAULT)
 799                 priv_level = QLCNIC_MGMT_FUNC;
 800         else
 801                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw.pci_func);
 802
 803         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 804                 if (priv_level == QLCNIC_MGMT_FUNC) {
 805                         adapter->op_mode = QLCNIC_MGMT_FUNC;
 806                         err = qlcnic_init_pci_info(adapter);
 807                         if (err)
 808                                 return err;
 809                         /* Set privilege level for other functions */
 810                         qlcnic_set_function_modes(adapter);
 811                         dev_info(&adapter->pdev->dev,
 812                                 "HAL Version: %d, Management function\n",
 813                                 adapter->fw_hal_version);
 814                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
 815                         adapter->op_mode = QLCNIC_PRIV_FUNC;
 816                         dev_info(&adapter->pdev->dev,
 817                                 "HAL Version: %d, Privileged function\n",
 818                                 adapter->fw_hal_version);
 819                 }
 820         }
 821
 822         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
 823
 824         return err;
 825 }
 826
 827 static int
 828 qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
 829 {
 830         struct qlcnic_esw_func_cfg esw_cfg;
 831         struct qlcnic_npar_info *npar;
 832         u8 i;
 833
 834         if (adapter->need_fw_reset)
 835                 return 0;
 836
 837         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 838                 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
 839                         continue;
 840                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
 841                 esw_cfg.pci_func = i;
 842                 esw_cfg.offload_flags = BIT_0;
 843                 esw_cfg.mac_override = BIT_0;
 844                 esw_cfg.promisc_mode = BIT_0;
 845                 if (adapter->capabilities  & QLCNIC_FW_CAPABILITY_TSO)
 846                         esw_cfg.offload_flags |= (BIT_1 | BIT_2);
 847                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
 848                         return -EIO;
 849                 npar = &adapter->npars[i];
 850                 npar->pvid = esw_cfg.vlan_id;
 851                 npar->mac_override = esw_cfg.mac_override;
 852                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
 853                 npar->discard_tagged = esw_cfg.discard_tagged;
 854                 npar->promisc_mode = esw_cfg.promisc_mode;
 855                 npar->offload_flags = esw_cfg.offload_flags;
 856         }
 857
 858         return 0;
 859 }
 860
 861 static int
 862 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
 863                         struct qlcnic_npar_info *npar, int pci_func)
 864 {
 865         struct qlcnic_esw_func_cfg esw_cfg;
 866         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
 867         esw_cfg.pci_func = pci_func;
 868         esw_cfg.vlan_id = npar->pvid;
 869         esw_cfg.mac_override = npar->mac_override;
 870         esw_cfg.discard_tagged = npar->discard_tagged;
 871         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
 872         esw_cfg.offload_flags = npar->offload_flags;
 873         esw_cfg.promisc_mode = npar->promisc_mode;
 874         if (qlcnic_config_switch_port(adapter, &esw_cfg))
 875                 return -EIO;
 876
 877         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
 878         if (qlcnic_config_switch_port(adapter, &esw_cfg))
 879                 return -EIO;
 880
 881         return 0;
 882 }
 883
 884 static int
 885 qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
 886 {
 887         int i, err;
 888         struct qlcnic_npar_info *npar;
 889         struct qlcnic_info nic_info;
 890
 891         if (!adapter->need_fw_reset)
 892                 return 0;
 893
 894         /* Set the NPAR config data after FW reset */
 895         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 896                 npar = &adapter->npars[i];
 897                 if (npar->type != QLCNIC_TYPE_NIC)
 898                         continue;
 899                 err = qlcnic_get_nic_info(adapter, &nic_info, i);
 900                 if (err)
 901                         return err;
 902                 nic_info.min_tx_bw = npar->min_bw;
 903                 nic_info.max_tx_bw = npar->max_bw;
 904                 err = qlcnic_set_nic_info(adapter, &nic_info);
 905                 if (err)
 906                         return err;
 907
 908                 if (npar->enable_pm) {
 909                         err = qlcnic_config_port_mirroring(adapter,
 910                                                         npar->dest_npar, 1, i);
 911                         if (err)
 912                                 return err;
 913                 }
 914                 err = qlcnic_reset_eswitch_config(adapter, npar, i);
 915                 if (err)
 916                         return err;
 917         }
 918         return 0;
 919 }
 920
 921 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
 922 {
 923         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
 924         u32 npar_state;
 925
 926         if (adapter->op_mode == QLCNIC_MGMT_FUNC)
 927                 return 0;
 928
 929         npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
 930         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
 931                 msleep(1000);
 932                 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
 933         }
 934         if (!npar_opt_timeo) {
 935                 dev_err(&adapter->pdev->dev,
 936                         "Waiting for NPAR state to opertional timeout\n");
 937                 return -EIO;
 938         }
 939         return 0;
 940 }
 941
 942 static int
 943 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
 944 {
 945         int err;
 946
 947         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
 948                     adapter->op_mode != QLCNIC_MGMT_FUNC)
 949                 return 0;
 950
 951         err = qlcnic_set_default_offload_settings(adapter);
 952         if (err)
 953                 return err;
 954
 955         err = qlcnic_reset_npar_config(adapter);
 956         if (err)
 957                 return err;
 958
 959         qlcnic_dev_set_npar_ready(adapter);
 960
 961         return err;
 962 }
 963
 964 static int
 965 qlcnic_start_firmware(struct qlcnic_adapter *adapter)
 966 {
 967         int err;
 968
 969         err = qlcnic_can_start_firmware(adapter);
 970         if (err < 0)
 971                 return err;
 972         else if (!err)
 973                 goto check_fw_status;
 974
 975         if (load_fw_file)
 976                 qlcnic_request_firmware(adapter);
 977         else {
 978                 err = qlcnic_check_flash_fw_ver(adapter);
 979                 if (err)
 980                         goto err_out;
 981
 982                 adapter->fw_type = QLCNIC_FLASH_ROMIMAGE;
 983         }
 984
 985         err = qlcnic_need_fw_reset(adapter);
 986         if (err == 0)
 987                 goto check_fw_status;
 988
 989         err = qlcnic_pinit_from_rom(adapter);
 990         if (err)
 991                 goto err_out;
 992
 993         err = qlcnic_load_firmware(adapter);
 994         if (err)
 995                 goto err_out;
 996
 997         qlcnic_release_firmware(adapter);
 998         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
 999
1000 check_fw_status:
1001         err = qlcnic_check_fw_status(adapter);
1002         if (err)
1003                 goto err_out;
1004
1005         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1006         qlcnic_idc_debug_info(adapter, 1);
1007
1008         err = qlcnic_check_eswitch_mode(adapter);
1009         if (err) {
1010                 dev_err(&adapter->pdev->dev,
1011                         "Memory allocation failed for eswitch\n");
1012                 goto err_out;
1013         }
1014         err = qlcnic_set_mgmt_operations(adapter);
1015         if (err)
1016                 goto err_out;
1017
1018         qlcnic_check_options(adapter);
1019         adapter->need_fw_reset = 0;
1020
1021         qlcnic_release_firmware(adapter);
1022         return 0;
1023
1024 err_out:
1025         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1026         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1027
1028         qlcnic_release_firmware(adapter);
1029         return err;
1030 }
1031
1032 static int
1033 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1034 {
1035         irq_handler_t handler;
1036         struct qlcnic_host_sds_ring *sds_ring;
1037         int err, ring;
1038
1039         unsigned long flags = 0;
1040         struct net_device *netdev = adapter->netdev;
1041         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1042
1043         if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1044                 handler = qlcnic_tmp_intr;
1045                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1046                         flags |= IRQF_SHARED;
1047
1048         } else {
1049                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1050                         handler = qlcnic_msix_intr;
1051                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1052                         handler = qlcnic_msi_intr;
1053                 else {
1054                         flags |= IRQF_SHARED;
1055                         handler = qlcnic_intr;
1056                 }
1057         }
1058         adapter->irq = netdev->irq;
1059
1060         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1061                 sds_ring = &recv_ctx->sds_rings[ring];
1062                 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
1063                 err = request_irq(sds_ring->irq, handler,
1064                                   flags, sds_ring->name, sds_ring);
1065                 if (err)
1066                         return err;
1067         }
1068
1069         return 0;
1070 }
1071
1072 static void
1073 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1074 {
1075         int ring;
1076         struct qlcnic_host_sds_ring *sds_ring;
1077
1078         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1079
1080         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1081                 sds_ring = &recv_ctx->sds_rings[ring];
1082                 free_irq(sds_ring->irq, sds_ring);
1083         }
1084 }
1085
1086 static void
1087 qlcnic_init_coalesce_defaults(struct qlcnic_adapter *adapter)
1088 {
1089         adapter->coal.flags = QLCNIC_INTR_DEFAULT;
1090         adapter->coal.normal.data.rx_time_us =
1091                 QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
1092         adapter->coal.normal.data.rx_packets =
1093                 QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
1094         adapter->coal.normal.data.tx_time_us =
1095                 QLCNIC_DEFAULT_INTR_COALESCE_TX_TIME_US;
1096         adapter->coal.normal.data.tx_packets =
1097                 QLCNIC_DEFAULT_INTR_COALESCE_TX_PACKETS;
1098 }
1099
1100 static int
1101 __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1102 {
1103         int ring;
1104         struct qlcnic_host_rds_ring *rds_ring;
1105
1106         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1107                 return -EIO;
1108
1109         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1110                 return 0;
1111         if (qlcnic_set_eswitch_port_config(adapter))
1112                 return -EIO;
1113
1114         if (qlcnic_fw_create_ctx(adapter))
1115                 return -EIO;
1116
1117         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1118                 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1119                 qlcnic_post_rx_buffers(adapter, ring, rds_ring);
1120         }
1121
1122         qlcnic_set_multi(netdev);
1123         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1124
1125         adapter->ahw.linkup = 0;
1126
1127         if (adapter->max_sds_rings > 1)
1128                 qlcnic_config_rss(adapter, 1);
1129
1130         qlcnic_config_intr_coalesce(adapter);
1131
1132         if (netdev->features & NETIF_F_LRO)
1133                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1134
1135         qlcnic_napi_enable(adapter);
1136
1137         qlcnic_linkevent_request(adapter, 1);
1138
1139         adapter->reset_context = 0;
1140         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1141         return 0;
1142 }
1143
1144 /* Usage: During resume and firmware recovery module.*/
1145
1146 static int
1147 qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1148 {
1149         int err = 0;
1150
1151         rtnl_lock();
1152         if (netif_running(netdev))
1153                 err = __qlcnic_up(adapter, netdev);
1154         rtnl_unlock();
1155
1156         return err;
1157 }
1158
1159 static void
1160 __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1161 {
1162         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1163                 return;
1164
1165         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1166                 return;
1167
1168         smp_mb();
1169         spin_lock(&adapter->tx_clean_lock);
1170         netif_carrier_off(netdev);
1171         netif_tx_disable(netdev);
1172
1173         qlcnic_free_mac_list(adapter);
1174
1175         if (adapter->fhash.fnum)
1176                 qlcnic_delete_lb_filters(adapter);
1177
1178         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1179
1180         qlcnic_napi_disable(adapter);
1181
1182         qlcnic_fw_destroy_ctx(adapter);
1183
1184         qlcnic_reset_rx_buffers_list(adapter);
1185         qlcnic_release_tx_buffers(adapter);
1186         spin_unlock(&adapter->tx_clean_lock);
1187 }
1188
1189 /* Usage: During suspend and firmware recovery module */
1190
1191 static void
1192 qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1193 {
1194         rtnl_lock();
1195         if (netif_running(netdev))
1196                 __qlcnic_down(adapter, netdev);
1197         rtnl_unlock();
1198
1199 }
1200
1201 static int
1202 qlcnic_attach(struct qlcnic_adapter *adapter)
1203 {
1204         struct net_device *netdev = adapter->netdev;
1205         struct pci_dev *pdev = adapter->pdev;
1206         int err;
1207
1208         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1209                 return 0;
1210
1211         err = qlcnic_napi_add(adapter, netdev);
1212         if (err)
1213                 return err;
1214
1215         err = qlcnic_alloc_sw_resources(adapter);
1216         if (err) {
1217                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1218                 goto err_out_napi_del;
1219         }
1220
1221         err = qlcnic_alloc_hw_resources(adapter);
1222         if (err) {
1223                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1224                 goto err_out_free_sw;
1225         }
1226
1227         err = qlcnic_request_irq(adapter);
1228         if (err) {
1229                 dev_err(&pdev->dev, "failed to setup interrupt\n");
1230                 goto err_out_free_hw;
1231         }
1232
1233         qlcnic_init_coalesce_defaults(adapter);
1234
1235         qlcnic_create_sysfs_entries(adapter);
1236
1237         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1238         return 0;
1239
1240 err_out_free_hw:
1241         qlcnic_free_hw_resources(adapter);
1242 err_out_free_sw:
1243         qlcnic_free_sw_resources(adapter);
1244 err_out_napi_del:
1245         qlcnic_napi_del(adapter);
1246         return err;
1247 }
1248
1249 static void
1250 qlcnic_detach(struct qlcnic_adapter *adapter)
1251 {
1252         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1253                 return;
1254
1255         qlcnic_remove_sysfs_entries(adapter);
1256
1257         qlcnic_free_hw_resources(adapter);
1258         qlcnic_release_rx_buffers(adapter);
1259         qlcnic_free_irq(adapter);
1260         qlcnic_napi_del(adapter);
1261         qlcnic_free_sw_resources(adapter);
1262
1263         adapter->is_up = 0;
1264 }
1265
1266 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1267 {
1268         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1269         struct qlcnic_host_sds_ring *sds_ring;
1270         int ring;
1271
1272         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1273         if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1274                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1275                         sds_ring = &adapter->recv_ctx.sds_rings[ring];
1276                         qlcnic_disable_int(sds_ring);
1277                 }
1278         }
1279
1280         qlcnic_fw_destroy_ctx(adapter);
1281
1282         qlcnic_detach(adapter);
1283
1284         adapter->diag_test = 0;
1285         adapter->max_sds_rings = max_sds_rings;
1286
1287         if (qlcnic_attach(adapter))
1288                 goto out;
1289
1290         if (netif_running(netdev))
1291                 __qlcnic_up(adapter, netdev);
1292 out:
1293         netif_device_attach(netdev);
1294 }
1295
1296 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1297 {
1298         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1299         struct qlcnic_host_sds_ring *sds_ring;
1300         struct qlcnic_host_rds_ring *rds_ring;
1301         int ring;
1302         int ret;
1303
1304         netif_device_detach(netdev);
1305
1306         if (netif_running(netdev))
1307                 __qlcnic_down(adapter, netdev);
1308
1309         qlcnic_detach(adapter);
1310
1311         adapter->max_sds_rings = 1;
1312         adapter->diag_test = test;
1313
1314         ret = qlcnic_attach(adapter);
1315         if (ret) {
1316                 netif_device_attach(netdev);
1317                 return ret;
1318         }
1319
1320         ret = qlcnic_fw_create_ctx(adapter);
1321         if (ret) {
1322                 qlcnic_detach(adapter);
1323                 netif_device_attach(netdev);
1324                 return ret;
1325         }
1326
1327         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1328                 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1329                 qlcnic_post_rx_buffers(adapter, ring, rds_ring);
1330         }
1331
1332         if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1333                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1334                         sds_ring = &adapter->recv_ctx.sds_rings[ring];
1335                         qlcnic_enable_int(sds_ring);
1336                 }
1337         }
1338         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1339
1340         return 0;
1341 }
1342
1343 /* Reset context in hardware only */
1344 static int
1345 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1346 {
1347         struct net_device *netdev = adapter->netdev;
1348
1349         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1350                 return -EBUSY;
1351
1352         netif_device_detach(netdev);
1353
1354         qlcnic_down(adapter, netdev);
1355
1356         qlcnic_up(adapter, netdev);
1357
1358         netif_device_attach(netdev);
1359
1360         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1361         return 0;
1362 }
1363
1364 int
1365 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1366 {
1367         int err = 0;
1368         struct net_device *netdev = adapter->netdev;
1369
1370         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1371                 return -EBUSY;
1372
1373         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1374
1375                 netif_device_detach(netdev);
1376
1377                 if (netif_running(netdev))
1378                         __qlcnic_down(adapter, netdev);
1379
1380                 qlcnic_detach(adapter);
1381
1382                 if (netif_running(netdev)) {
1383                         err = qlcnic_attach(adapter);
1384                         if (!err)
1385                                 __qlcnic_up(adapter, netdev);
1386                 }
1387
1388                 netif_device_attach(netdev);
1389         }
1390
1391         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1392         return err;
1393 }
1394
1395 static int
1396 qlcnic_setup_netdev(struct qlcnic_adapter *adapter,
1397                 struct net_device *netdev, u8 pci_using_dac)
1398 {
1399         int err;
1400         struct pci_dev *pdev = adapter->pdev;
1401
1402         adapter->rx_csum = 1;
1403         adapter->mc_enabled = 0;
1404         adapter->max_mc_count = 38;
1405
1406         netdev->netdev_ops         = &qlcnic_netdev_ops;
1407         netdev->watchdog_timeo     = 5*HZ;
1408
1409         qlcnic_change_mtu(netdev, netdev->mtu);
1410
1411         SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1412
1413         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1414                 NETIF_F_IPV6_CSUM | NETIF_F_GRO | NETIF_F_HW_VLAN_RX);
1415         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1416                 NETIF_F_IPV6_CSUM);
1417
1418         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO) {
1419                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
1420                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
1421         }
1422
1423         if (pci_using_dac) {
1424                 netdev->features |= NETIF_F_HIGHDMA;
1425                 netdev->vlan_features |= NETIF_F_HIGHDMA;
1426         }
1427
1428         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX)
1429                 netdev->features |= (NETIF_F_HW_VLAN_TX);
1430
1431         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1432                 netdev->features |= NETIF_F_LRO;
1433         netdev->irq = adapter->msix_entries[0].vector;
1434
1435         netif_carrier_off(netdev);
1436
1437         err = register_netdev(netdev);
1438         if (err) {
1439                 dev_err(&pdev->dev, "failed to register net device\n");
1440                 return err;
1441         }
1442
1443         return 0;
1444 }
1445
1446 static int qlcnic_set_dma_mask(struct pci_dev *pdev, u8 *pci_using_dac)
1447 {
1448         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1449                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1450                 *pci_using_dac = 1;
1451         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1452                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1453                 *pci_using_dac = 0;
1454         else {
1455                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1456                 return -EIO;
1457         }
1458
1459         return 0;
1460 }
1461
1462 static int __devinit
1463 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1464 {
1465         struct net_device *netdev = NULL;
1466         struct qlcnic_adapter *adapter = NULL;
1467         int err;
1468         uint8_t revision_id;
1469         uint8_t pci_using_dac;
1470         char brd_name[QLCNIC_MAX_BOARD_NAME_LEN];
1471
1472         err = pci_enable_device(pdev);
1473         if (err)
1474                 return err;
1475
1476         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1477                 err = -ENODEV;
1478                 goto err_out_disable_pdev;
1479         }
1480
1481         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
1482         if (err)
1483                 goto err_out_disable_pdev;
1484
1485         err = pci_request_regions(pdev, qlcnic_driver_name);
1486         if (err)
1487                 goto err_out_disable_pdev;
1488
1489         pci_set_master(pdev);
1490         pci_enable_pcie_error_reporting(pdev);
1491
1492         netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1493         if (!netdev) {
1494                 dev_err(&pdev->dev, "failed to allocate net_device\n");
1495                 err = -ENOMEM;
1496                 goto err_out_free_res;
1497         }
1498
1499         SET_NETDEV_DEV(netdev, &pdev->dev);
1500
1501         adapter = netdev_priv(netdev);
1502         adapter->netdev  = netdev;
1503         adapter->pdev    = pdev;
1504         adapter->dev_rst_time = jiffies;
1505
1506         revision_id = pdev->revision;
1507         adapter->ahw.revision_id = revision_id;
1508
1509         rwlock_init(&adapter->ahw.crb_lock);
1510         mutex_init(&adapter->ahw.mem_lock);
1511
1512         spin_lock_init(&adapter->tx_clean_lock);
1513         INIT_LIST_HEAD(&adapter->mac_list);
1514
1515         err = qlcnic_setup_pci_map(adapter);
1516         if (err)
1517                 goto err_out_free_netdev;
1518
1519         /* This will be reset for mezz cards  */
1520         adapter->portnum = adapter->ahw.pci_func;
1521
1522         err = qlcnic_get_board_info(adapter);
1523         if (err) {
1524                 dev_err(&pdev->dev, "Error getting board config info.\n");
1525                 goto err_out_iounmap;
1526         }
1527
1528         err = qlcnic_setup_idc_param(adapter);
1529         if (err)
1530                 goto err_out_iounmap;
1531
1532         adapter->flags |= QLCNIC_NEED_FLR;
1533
1534         err = adapter->nic_ops->start_firmware(adapter);
1535         if (err) {
1536                 dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
1537                 goto err_out_decr_ref;
1538         }
1539
1540         if (qlcnic_read_mac_addr(adapter))
1541                 dev_warn(&pdev->dev, "failed to read mac addr\n");
1542
1543         if (adapter->portnum == 0) {
1544                 get_brd_name(adapter, brd_name);
1545
1546                 pr_info("%s: %s Board Chip rev 0x%x\n",
1547                                 module_name(THIS_MODULE),
1548                                 brd_name, adapter->ahw.revision_id);
1549         }
1550
1551         qlcnic_clear_stats(adapter);
1552
1553         qlcnic_setup_intr(adapter);
1554
1555         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
1556         if (err)
1557                 goto err_out_disable_msi;
1558
1559         pci_set_drvdata(pdev, adapter);
1560
1561         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1562
1563         switch (adapter->ahw.port_type) {
1564         case QLCNIC_GBE:
1565                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1566                                 adapter->netdev->name);
1567                 break;
1568         case QLCNIC_XGBE:
1569                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1570                                 adapter->netdev->name);
1571                 break;
1572         }
1573
1574         qlcnic_alloc_lb_filters_mem(adapter);
1575         qlcnic_create_diag_entries(adapter);
1576
1577         return 0;
1578
1579 err_out_disable_msi:
1580         qlcnic_teardown_intr(adapter);
1581
1582 err_out_decr_ref:
1583         qlcnic_clr_all_drv_state(adapter, 0);
1584
1585 err_out_iounmap:
1586         qlcnic_cleanup_pci_map(adapter);
1587
1588 err_out_free_netdev:
1589         free_netdev(netdev);
1590
1591 err_out_free_res:
1592         pci_release_regions(pdev);
1593
1594 err_out_disable_pdev:
1595         pci_set_drvdata(pdev, NULL);
1596         pci_disable_device(pdev);
1597         return err;
1598 }
1599
1600 static void __devexit qlcnic_remove(struct pci_dev *pdev)
1601 {
1602         struct qlcnic_adapter *adapter;
1603         struct net_device *netdev;
1604
1605         adapter = pci_get_drvdata(pdev);
1606         if (adapter == NULL)
1607                 return;
1608
1609         netdev = adapter->netdev;
1610
1611         qlcnic_cancel_fw_work(adapter);
1612
1613         unregister_netdev(netdev);
1614
1615         qlcnic_detach(adapter);
1616
1617         if (adapter->npars != NULL)
1618                 kfree(adapter->npars);
1619         if (adapter->eswitch != NULL)
1620                 kfree(adapter->eswitch);
1621
1622         qlcnic_clr_all_drv_state(adapter, 0);
1623
1624         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1625
1626         qlcnic_free_lb_filters_mem(adapter);
1627
1628         qlcnic_teardown_intr(adapter);
1629
1630         qlcnic_remove_diag_entries(adapter);
1631
1632         qlcnic_cleanup_pci_map(adapter);
1633
1634         qlcnic_release_firmware(adapter);
1635
1636         pci_disable_pcie_error_reporting(pdev);
1637         pci_release_regions(pdev);
1638         pci_disable_device(pdev);
1639         pci_set_drvdata(pdev, NULL);
1640
1641         free_netdev(netdev);
1642 }
1643 static int __qlcnic_shutdown(struct pci_dev *pdev)
1644 {
1645         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1646         struct net_device *netdev = adapter->netdev;
1647         int retval;
1648
1649         netif_device_detach(netdev);
1650
1651         qlcnic_cancel_fw_work(adapter);
1652
1653         if (netif_running(netdev))
1654                 qlcnic_down(adapter, netdev);
1655
1656         qlcnic_clr_all_drv_state(adapter, 0);
1657
1658         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1659
1660         retval = pci_save_state(pdev);
1661         if (retval)
1662                 return retval;
1663
1664         if (qlcnic_wol_supported(adapter)) {
1665                 pci_enable_wake(pdev, PCI_D3cold, 1);
1666                 pci_enable_wake(pdev, PCI_D3hot, 1);
1667         }
1668
1669         return 0;
1670 }
1671
1672 static void qlcnic_shutdown(struct pci_dev *pdev)
1673 {
1674         if (__qlcnic_shutdown(pdev))
1675                 return;
1676
1677         pci_disable_device(pdev);
1678 }
1679
1680 #ifdef CONFIG_PM
1681 static int
1682 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
1683 {
1684         int retval;
1685
1686         retval = __qlcnic_shutdown(pdev);
1687         if (retval)
1688                 return retval;
1689
1690         pci_set_power_state(pdev, pci_choose_state(pdev, state));
1691         return 0;
1692 }
1693
1694 static int
1695 qlcnic_resume(struct pci_dev *pdev)
1696 {
1697         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1698         struct net_device *netdev = adapter->netdev;
1699         int err;
1700
1701         err = pci_enable_device(pdev);
1702         if (err)
1703                 return err;
1704
1705         pci_set_power_state(pdev, PCI_D0);
1706         pci_set_master(pdev);
1707         pci_restore_state(pdev);
1708
1709         err = adapter->nic_ops->start_firmware(adapter);
1710         if (err) {
1711                 dev_err(&pdev->dev, "failed to start firmware\n");
1712                 return err;
1713         }
1714
1715         if (netif_running(netdev)) {
1716                 err = qlcnic_up(adapter, netdev);
1717                 if (err)
1718                         goto done;
1719
1720                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1721         }
1722 done:
1723         netif_device_attach(netdev);
1724         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1725         return 0;
1726 }
1727 #endif
1728
1729 static int qlcnic_open(struct net_device *netdev)
1730 {
1731         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1732         int err;
1733
1734         err = qlcnic_attach(adapter);
1735         if (err)
1736                 return err;
1737
1738         err = __qlcnic_up(adapter, netdev);
1739         if (err)
1740                 goto err_out;
1741
1742         netif_start_queue(netdev);
1743
1744         return 0;
1745
1746 err_out:
1747         qlcnic_detach(adapter);
1748         return err;
1749 }
1750
1751 /*
1752  * qlcnic_close - Disables a network interface entry point
1753  */
1754 static int qlcnic_close(struct net_device *netdev)
1755 {
1756         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1757
1758         __qlcnic_down(adapter, netdev);
1759         return 0;
1760 }
1761
1762 static void
1763 qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
1764 {
1765         void *head;
1766         int i;
1767
1768         if (!qlcnic_mac_learn)
1769                 return;
1770
1771         spin_lock_init(&adapter->mac_learn_lock);
1772
1773         head = kcalloc(QLCNIC_LB_MAX_FILTERS, sizeof(struct hlist_head),
1774                                                                 GFP_KERNEL);
1775         if (!head)
1776                 return;
1777
1778         adapter->fhash.fmax = QLCNIC_LB_MAX_FILTERS;
1779         adapter->fhash.fhead = (struct hlist_head *)head;
1780
1781         for (i = 0; i < adapter->fhash.fmax; i++)
1782                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
1783 }
1784
1785 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
1786 {
1787         if (adapter->fhash.fmax && adapter->fhash.fhead)
1788                 kfree(adapter->fhash.fhead);
1789
1790         adapter->fhash.fhead = NULL;
1791         adapter->fhash.fmax = 0;
1792 }
1793
1794 static void qlcnic_change_filter(struct qlcnic_adapter *adapter,
1795                 u64 uaddr, __le16 vlan_id, struct qlcnic_host_tx_ring *tx_ring)
1796 {
1797         struct cmd_desc_type0 *hwdesc;
1798         struct qlcnic_nic_req *req;
1799         struct qlcnic_mac_req *mac_req;
1800         struct qlcnic_vlan_req *vlan_req;
1801         u32 producer;
1802         u64 word;
1803
1804         producer = tx_ring->producer;
1805         hwdesc = &tx_ring->desc_head[tx_ring->producer];
1806
1807         req = (struct qlcnic_nic_req *)hwdesc;
1808         memset(req, 0, sizeof(struct qlcnic_nic_req));
1809         req->qhdr = cpu_to_le64(QLCNIC_REQUEST << 23);
1810
1811         word = QLCNIC_MAC_EVENT | ((u64)(adapter->portnum) << 16);
1812         req->req_hdr = cpu_to_le64(word);
1813
1814         mac_req = (struct qlcnic_mac_req *)&(req->words[0]);
1815         mac_req->op = vlan_id ? QLCNIC_MAC_VLAN_ADD : QLCNIC_MAC_ADD;
1816         memcpy(mac_req->mac_addr, &uaddr, ETH_ALEN);
1817
1818         vlan_req = (struct qlcnic_vlan_req *)&req->words[1];
1819         vlan_req->vlan_id = vlan_id;
1820
1821         tx_ring->producer = get_next_index(producer, tx_ring->num_desc);
1822 }
1823
1824 #define QLCNIC_MAC_HASH(MAC)\
1825         ((((MAC) & 0x70000) >> 0x10) | (((MAC) & 0x70000000000ULL) >> 0x25))
1826
1827 static void
1828 qlcnic_send_filter(struct qlcnic_adapter *adapter,
1829                 struct qlcnic_host_tx_ring *tx_ring,
1830                 struct cmd_desc_type0 *first_desc,
1831                 struct sk_buff *skb)
1832 {
1833         struct ethhdr *phdr = (struct ethhdr *)(skb->data);
1834         struct qlcnic_filter *fil, *tmp_fil;
1835         struct hlist_node *tmp_hnode, *n;
1836         struct hlist_head *head;
1837         u64 src_addr = 0;
1838         __le16 vlan_id = 0;
1839         u8 hindex;
1840
1841         if (!compare_ether_addr(phdr->h_source, adapter->mac_addr))
1842                 return;
1843
1844         if (adapter->fhash.fnum >= adapter->fhash.fmax)
1845                 return;
1846
1847         /* Only NPAR capable devices support vlan based learning*/
1848         if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
1849                 vlan_id = first_desc->vlan_TCI;
1850         memcpy(&src_addr, phdr->h_source, ETH_ALEN);
1851         hindex = QLCNIC_MAC_HASH(src_addr) & (QLCNIC_LB_MAX_FILTERS - 1);
1852         head = &(adapter->fhash.fhead[hindex]);
1853
1854         hlist_for_each_entry_safe(tmp_fil, tmp_hnode, n, head, fnode) {
1855                 if (!memcmp(tmp_fil->faddr, &src_addr, ETH_ALEN) &&
1856                             tmp_fil->vlan_id == vlan_id) {
1857
1858                         if (jiffies >
1859                             (QLCNIC_READD_AGE * HZ + tmp_fil->ftime))
1860                                 qlcnic_change_filter(adapter, src_addr, vlan_id,
1861                                                                 tx_ring);
1862                         tmp_fil->ftime = jiffies;
1863                         return;
1864                 }
1865         }
1866
1867         fil = kzalloc(sizeof(struct qlcnic_filter), GFP_ATOMIC);
1868         if (!fil)
1869                 return;
1870
1871         qlcnic_change_filter(adapter, src_addr, vlan_id, tx_ring);
1872
1873         fil->ftime = jiffies;
1874         fil->vlan_id = vlan_id;
1875         memcpy(fil->faddr, &src_addr, ETH_ALEN);
1876         spin_lock(&adapter->mac_learn_lock);
1877         hlist_add_head(&(fil->fnode), head);
1878         adapter->fhash.fnum++;
1879         spin_unlock(&adapter->mac_learn_lock);
1880 }
1881
1882 static void
1883 qlcnic_tso_check(struct net_device *netdev,
1884                 struct qlcnic_host_tx_ring *tx_ring,
1885                 struct cmd_desc_type0 *first_desc,
1886                 struct sk_buff *skb)
1887 {
1888         u8 opcode = TX_ETHER_PKT;
1889         __be16 protocol = skb->protocol;
1890         u16 flags = 0;
1891         int copied, offset, copy_len, hdr_len = 0, tso = 0;
1892         struct cmd_desc_type0 *hwdesc;
1893         struct vlan_ethhdr *vh;
1894         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1895         u32 producer = tx_ring->producer;
1896         __le16 vlan_oob = first_desc->flags_opcode &
1897                                 cpu_to_le16(FLAGS_VLAN_OOB);
1898
1899         if (*(skb->data) & BIT_0) {
1900                 flags |= BIT_0;
1901                 memcpy(&first_desc->eth_addr, skb->data, ETH_ALEN);
1902         }
1903
1904         if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1905                         skb_shinfo(skb)->gso_size > 0) {
1906
1907                 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1908
1909                 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1910                 first_desc->total_hdr_length = hdr_len;
1911                 if (vlan_oob) {
1912                         first_desc->total_hdr_length += VLAN_HLEN;
1913                         first_desc->tcp_hdr_offset = VLAN_HLEN;
1914                         first_desc->ip_hdr_offset = VLAN_HLEN;
1915                         /* Only in case of TSO on vlan device */
1916                         flags |= FLAGS_VLAN_TAGGED;
1917                 }
1918
1919                 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1920                                 TX_TCP_LSO6 : TX_TCP_LSO;
1921                 tso = 1;
1922
1923         } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1924                 u8 l4proto;
1925
1926                 if (protocol == cpu_to_be16(ETH_P_IP)) {
1927                         l4proto = ip_hdr(skb)->protocol;
1928
1929                         if (l4proto == IPPROTO_TCP)
1930                                 opcode = TX_TCP_PKT;
1931                         else if (l4proto == IPPROTO_UDP)
1932                                 opcode = TX_UDP_PKT;
1933                 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1934                         l4proto = ipv6_hdr(skb)->nexthdr;
1935
1936                         if (l4proto == IPPROTO_TCP)
1937                                 opcode = TX_TCPV6_PKT;
1938                         else if (l4proto == IPPROTO_UDP)
1939                                 opcode = TX_UDPV6_PKT;
1940                 }
1941         }
1942
1943         first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1944         first_desc->ip_hdr_offset += skb_network_offset(skb);
1945         qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
1946
1947         if (!tso)
1948                 return;
1949
1950         /* For LSO, we need to copy the MAC/IP/TCP headers into
1951          * the descriptor ring
1952          */
1953         copied = 0;
1954         offset = 2;
1955
1956         if (vlan_oob) {
1957                 /* Create a TSO vlan header template for firmware */
1958
1959                 hwdesc = &tx_ring->desc_head[producer];
1960                 tx_ring->cmd_buf_arr[producer].skb = NULL;
1961
1962                 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1963                                 hdr_len + VLAN_HLEN);
1964
1965                 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1966                 skb_copy_from_linear_data(skb, vh, 12);
1967                 vh->h_vlan_proto = htons(ETH_P_8021Q);
1968                 vh->h_vlan_TCI = (__be16)swab16((u16)first_desc->vlan_TCI);
1969
1970                 skb_copy_from_linear_data_offset(skb, 12,
1971                                 (char *)vh + 16, copy_len - 16);
1972
1973                 copied = copy_len - VLAN_HLEN;
1974                 offset = 0;
1975
1976                 producer = get_next_index(producer, tx_ring->num_desc);
1977         }
1978
1979         while (copied < hdr_len) {
1980
1981                 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1982                                 (hdr_len - copied));
1983
1984                 hwdesc = &tx_ring->desc_head[producer];
1985                 tx_ring->cmd_buf_arr[producer].skb = NULL;
1986
1987                 skb_copy_from_linear_data_offset(skb, copied,
1988                                  (char *)hwdesc + offset, copy_len);
1989
1990                 copied += copy_len;
1991                 offset = 0;
1992
1993                 producer = get_next_index(producer, tx_ring->num_desc);
1994         }
1995
1996         tx_ring->producer = producer;
1997         barrier();
1998         adapter->stats.lso_frames++;
1999 }
2000
2001 static int
2002 qlcnic_map_tx_skb(struct pci_dev *pdev,
2003                 struct sk_buff *skb, struct qlcnic_cmd_buffer *pbuf)
2004 {
2005         struct qlcnic_skb_frag *nf;
2006         struct skb_frag_struct *frag;
2007         int i, nr_frags;
2008         dma_addr_t map;
2009
2010         nr_frags = skb_shinfo(skb)->nr_frags;
2011         nf = &pbuf->frag_array[0];
2012
2013         map = pci_map_single(pdev, skb->data,
2014                         skb_headlen(skb), PCI_DMA_TODEVICE);
2015         if (pci_dma_mapping_error(pdev, map))
2016                 goto out_err;
2017
2018         nf->dma = map;
2019         nf->length = skb_headlen(skb);
2020
2021         for (i = 0; i < nr_frags; i++) {
2022                 frag = &skb_shinfo(skb)->frags[i];
2023                 nf = &pbuf->frag_array[i+1];
2024
2025                 map = pci_map_page(pdev, frag->page, frag->page_offset,
2026                                 frag->size, PCI_DMA_TODEVICE);
2027                 if (pci_dma_mapping_error(pdev, map))
2028                         goto unwind;
2029
2030                 nf->dma = map;
2031                 nf->length = frag->size;
2032         }
2033
2034         return 0;
2035
2036 unwind:
2037         while (--i >= 0) {
2038                 nf = &pbuf->frag_array[i+1];
2039                 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
2040         }
2041
2042         nf = &pbuf->frag_array[0];
2043         pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
2044
2045 out_err:
2046         return -ENOMEM;
2047 }
2048
2049 static int
2050 qlcnic_check_tx_tagging(struct qlcnic_adapter *adapter,
2051                         struct sk_buff *skb,
2052                         struct cmd_desc_type0 *first_desc)
2053 {
2054         u8 opcode = 0;
2055         u16 flags = 0;
2056         __be16 protocol = skb->protocol;
2057         struct vlan_ethhdr *vh;
2058
2059         if (protocol == cpu_to_be16(ETH_P_8021Q)) {
2060                 vh = (struct vlan_ethhdr *)skb->data;
2061                 protocol = vh->h_vlan_encapsulated_proto;
2062                 flags = FLAGS_VLAN_TAGGED;
2063                 qlcnic_set_tx_vlan_tci(first_desc, ntohs(vh->h_vlan_TCI));
2064         } else if (vlan_tx_tag_present(skb)) {
2065                 flags = FLAGS_VLAN_OOB;
2066                 qlcnic_set_tx_vlan_tci(first_desc, vlan_tx_tag_get(skb));
2067         }
2068         if (unlikely(adapter->pvid)) {
2069                 if (first_desc->vlan_TCI &&
2070                                 !(adapter->flags & QLCNIC_TAGGING_ENABLED))
2071                         return -EIO;
2072                 if (first_desc->vlan_TCI &&
2073                                 (adapter->flags & QLCNIC_TAGGING_ENABLED))
2074                         goto set_flags;
2075
2076                 flags = FLAGS_VLAN_OOB;
2077                 qlcnic_set_tx_vlan_tci(first_desc, adapter->pvid);
2078         }
2079 set_flags:
2080         qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
2081         return 0;
2082 }
2083
2084 static inline void
2085 qlcnic_clear_cmddesc(u64 *desc)
2086 {
2087         desc[0] = 0ULL;
2088         desc[2] = 0ULL;
2089         desc[7] = 0ULL;
2090 }
2091
2092 netdev_tx_t
2093 qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
2094 {
2095         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2096         struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
2097         struct qlcnic_cmd_buffer *pbuf;
2098         struct qlcnic_skb_frag *buffrag;
2099         struct cmd_desc_type0 *hwdesc, *first_desc;
2100         struct pci_dev *pdev;
2101         struct ethhdr *phdr;
2102         int delta = 0;
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         /* 14 frags supported for normal packet and
2123          * 32 frags supported for TSO packet
2124          */
2125         if (!skb_is_gso(skb) && frag_count > QLCNIC_MAX_FRAGS_PER_TX) {
2126
2127                 for (i = 0; i < (frag_count - QLCNIC_MAX_FRAGS_PER_TX); i++)
2128                         delta += skb_shinfo(skb)->frags[i].size;
2129
2130                 if (!__pskb_pull_tail(skb, delta))
2131                         goto drop_packet;
2132
2133                 frag_count = 1 + skb_shinfo(skb)->nr_frags;
2134         }
2135
2136         /* 4 fragments per cmd des */
2137         no_of_desc = (frag_count + 3) >> 2;
2138
2139         if (unlikely(qlcnic_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
2140                 netif_stop_queue(netdev);
2141                 smp_mb();
2142                 if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH)
2143                         netif_start_queue(netdev);
2144                 else {
2145                         adapter->stats.xmit_off++;
2146                         return NETDEV_TX_BUSY;
2147                 }
2148         }
2149
2150         producer = tx_ring->producer;
2151         pbuf = &tx_ring->cmd_buf_arr[producer];
2152
2153         pdev = adapter->pdev;
2154
2155         first_desc = hwdesc = &tx_ring->desc_head[producer];
2156         qlcnic_clear_cmddesc((u64 *)hwdesc);
2157
2158         if (qlcnic_check_tx_tagging(adapter, skb, first_desc))
2159                 goto drop_packet;
2160
2161         if (qlcnic_map_tx_skb(pdev, skb, pbuf)) {
2162                 adapter->stats.tx_dma_map_error++;
2163                 goto drop_packet;
2164         }
2165
2166         pbuf->skb = skb;
2167         pbuf->frag_count = frag_count;
2168
2169         qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len);
2170         qlcnic_set_tx_port(first_desc, adapter->portnum);
2171
2172         for (i = 0; i < frag_count; i++) {
2173
2174                 k = i % 4;
2175
2176                 if ((k == 0) && (i > 0)) {
2177                         /* move to next desc.*/
2178                         producer = get_next_index(producer, num_txd);
2179                         hwdesc = &tx_ring->desc_head[producer];
2180                         qlcnic_clear_cmddesc((u64 *)hwdesc);
2181                         tx_ring->cmd_buf_arr[producer].skb = NULL;
2182                 }
2183
2184                 buffrag = &pbuf->frag_array[i];
2185
2186                 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
2187                 switch (k) {
2188                 case 0:
2189                         hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
2190                         break;
2191                 case 1:
2192                         hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
2193                         break;
2194                 case 2:
2195                         hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
2196                         break;
2197                 case 3:
2198                         hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
2199                         break;
2200                 }
2201         }
2202
2203         tx_ring->producer = get_next_index(producer, num_txd);
2204
2205         qlcnic_tso_check(netdev, tx_ring, first_desc, skb);
2206
2207         if (qlcnic_mac_learn)
2208                 qlcnic_send_filter(adapter, tx_ring, first_desc, skb);
2209
2210         qlcnic_update_cmd_producer(adapter, tx_ring);
2211
2212         adapter->stats.txbytes += skb->len;
2213         adapter->stats.xmitcalled++;
2214
2215         return NETDEV_TX_OK;
2216
2217 drop_packet:
2218         adapter->stats.txdropped++;
2219         dev_kfree_skb_any(skb);
2220         return NETDEV_TX_OK;
2221 }
2222
2223 static int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2224 {
2225         struct net_device *netdev = adapter->netdev;
2226         u32 temp, temp_state, temp_val;
2227         int rv = 0;
2228
2229         temp = QLCRD32(adapter, CRB_TEMP_STATE);
2230
2231         temp_state = qlcnic_get_temp_state(temp);
2232         temp_val = qlcnic_get_temp_val(temp);
2233
2234         if (temp_state == QLCNIC_TEMP_PANIC) {
2235                 dev_err(&netdev->dev,
2236                        "Device temperature %d degrees C exceeds"
2237                        " maximum allowed. Hardware has been shut down.\n",
2238                        temp_val);
2239                 rv = 1;
2240         } else if (temp_state == QLCNIC_TEMP_WARN) {
2241                 if (adapter->temp == QLCNIC_TEMP_NORMAL) {
2242                         dev_err(&netdev->dev,
2243                                "Device temperature %d degrees C "
2244                                "exceeds operating range."
2245                                " Immediate action needed.\n",
2246                                temp_val);
2247                 }
2248         } else {
2249                 if (adapter->temp == QLCNIC_TEMP_WARN) {
2250                         dev_info(&netdev->dev,
2251                                "Device temperature is now %d degrees C"
2252                                " in normal range.\n", temp_val);
2253                 }
2254         }
2255         adapter->temp = temp_state;
2256         return rv;
2257 }
2258
2259 void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup)
2260 {
2261         struct net_device *netdev = adapter->netdev;
2262
2263         if (adapter->ahw.linkup && !linkup) {
2264                 netdev_info(netdev, "NIC Link is down\n");
2265                 adapter->ahw.linkup = 0;
2266                 if (netif_running(netdev)) {
2267                         netif_carrier_off(netdev);
2268                         netif_stop_queue(netdev);
2269                 }
2270         } else if (!adapter->ahw.linkup && linkup) {
2271                 netdev_info(netdev, "NIC Link is up\n");
2272                 adapter->ahw.linkup = 1;
2273                 if (netif_running(netdev)) {
2274                         netif_carrier_on(netdev);
2275                         netif_wake_queue(netdev);
2276                 }
2277         }
2278 }
2279
2280 static void qlcnic_tx_timeout(struct net_device *netdev)
2281 {
2282         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2283
2284         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2285                 return;
2286
2287         dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2288
2289         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
2290                 adapter->need_fw_reset = 1;
2291         else
2292                 adapter->reset_context = 1;
2293 }
2294
2295 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2296 {
2297         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2298         struct net_device_stats *stats = &netdev->stats;
2299
2300         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2301         stats->tx_packets = adapter->stats.xmitfinished;
2302         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2303         stats->tx_bytes = adapter->stats.txbytes;
2304         stats->rx_dropped = adapter->stats.rxdropped;
2305         stats->tx_dropped = adapter->stats.txdropped;
2306
2307         return stats;
2308 }
2309
2310 static irqreturn_t qlcnic_clear_legacy_intr(struct qlcnic_adapter *adapter)
2311 {
2312         u32 status;
2313
2314         status = readl(adapter->isr_int_vec);
2315
2316         if (!(status & adapter->int_vec_bit))
2317                 return IRQ_NONE;
2318
2319         /* check interrupt state machine, to be sure */
2320         status = readl(adapter->crb_int_state_reg);
2321         if (!ISR_LEGACY_INT_TRIGGERED(status))
2322                 return IRQ_NONE;
2323
2324         writel(0xffffffff, adapter->tgt_status_reg);
2325         /* read twice to ensure write is flushed */
2326         readl(adapter->isr_int_vec);
2327         readl(adapter->isr_int_vec);
2328
2329         return IRQ_HANDLED;
2330 }
2331
2332 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2333 {
2334         struct qlcnic_host_sds_ring *sds_ring = data;
2335         struct qlcnic_adapter *adapter = sds_ring->adapter;
2336
2337         if (adapter->flags & QLCNIC_MSIX_ENABLED)
2338                 goto done;
2339         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2340                 writel(0xffffffff, adapter->tgt_status_reg);
2341                 goto done;
2342         }
2343
2344         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2345                 return IRQ_NONE;
2346
2347 done:
2348         adapter->diag_cnt++;
2349         qlcnic_enable_int(sds_ring);
2350         return IRQ_HANDLED;
2351 }
2352
2353 static irqreturn_t qlcnic_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         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2359                 return IRQ_NONE;
2360
2361         napi_schedule(&sds_ring->napi);
2362
2363         return IRQ_HANDLED;
2364 }
2365
2366 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2367 {
2368         struct qlcnic_host_sds_ring *sds_ring = data;
2369         struct qlcnic_adapter *adapter = sds_ring->adapter;
2370
2371         /* clear interrupt */
2372         writel(0xffffffff, adapter->tgt_status_reg);
2373
2374         napi_schedule(&sds_ring->napi);
2375         return IRQ_HANDLED;
2376 }
2377
2378 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2379 {
2380         struct qlcnic_host_sds_ring *sds_ring = data;
2381
2382         napi_schedule(&sds_ring->napi);
2383         return IRQ_HANDLED;
2384 }
2385
2386 static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter)
2387 {
2388         u32 sw_consumer, hw_consumer;
2389         int count = 0, i;
2390         struct qlcnic_cmd_buffer *buffer;
2391         struct pci_dev *pdev = adapter->pdev;
2392         struct net_device *netdev = adapter->netdev;
2393         struct qlcnic_skb_frag *frag;
2394         int done;
2395         struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
2396
2397         if (!spin_trylock(&adapter->tx_clean_lock))
2398                 return 1;
2399
2400         sw_consumer = tx_ring->sw_consumer;
2401         hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
2402
2403         while (sw_consumer != hw_consumer) {
2404                 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
2405                 if (buffer->skb) {
2406                         frag = &buffer->frag_array[0];
2407                         pci_unmap_single(pdev, frag->dma, frag->length,
2408                                          PCI_DMA_TODEVICE);
2409                         frag->dma = 0ULL;
2410                         for (i = 1; i < buffer->frag_count; i++) {
2411                                 frag++;
2412                                 pci_unmap_page(pdev, frag->dma, frag->length,
2413                                                PCI_DMA_TODEVICE);
2414                                 frag->dma = 0ULL;
2415                         }
2416
2417                         adapter->stats.xmitfinished++;
2418                         dev_kfree_skb_any(buffer->skb);
2419                         buffer->skb = NULL;
2420                 }
2421
2422                 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
2423                 if (++count >= MAX_STATUS_HANDLE)
2424                         break;
2425         }
2426
2427         if (count && netif_running(netdev)) {
2428                 tx_ring->sw_consumer = sw_consumer;
2429
2430                 smp_mb();
2431
2432                 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
2433                         if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) {
2434                                 netif_wake_queue(netdev);
2435                                 adapter->stats.xmit_on++;
2436                         }
2437                 }
2438                 adapter->tx_timeo_cnt = 0;
2439         }
2440         /*
2441          * If everything is freed up to consumer then check if the ring is full
2442          * If the ring is full then check if more needs to be freed and
2443          * schedule the call back again.
2444          *
2445          * This happens when there are 2 CPUs. One could be freeing and the
2446          * other filling it. If the ring is full when we get out of here and
2447          * the card has already interrupted the host then the host can miss the
2448          * interrupt.
2449          *
2450          * There is still a possible race condition and the host could miss an
2451          * interrupt. The card has to take care of this.
2452          */
2453         hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
2454         done = (sw_consumer == hw_consumer);
2455         spin_unlock(&adapter->tx_clean_lock);
2456
2457         return done;
2458 }
2459
2460 static int qlcnic_poll(struct napi_struct *napi, int budget)
2461 {
2462         struct qlcnic_host_sds_ring *sds_ring =
2463                 container_of(napi, struct qlcnic_host_sds_ring, napi);
2464
2465         struct qlcnic_adapter *adapter = sds_ring->adapter;
2466
2467         int tx_complete;
2468         int work_done;
2469
2470         tx_complete = qlcnic_process_cmd_ring(adapter);
2471
2472         work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2473
2474         if ((work_done < budget) && tx_complete) {
2475                 napi_complete(&sds_ring->napi);
2476                 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2477                         qlcnic_enable_int(sds_ring);
2478         }
2479
2480         return work_done;
2481 }
2482
2483 static int qlcnic_rx_poll(struct napi_struct *napi, int budget)
2484 {
2485         struct qlcnic_host_sds_ring *sds_ring =
2486                 container_of(napi, struct qlcnic_host_sds_ring, napi);
2487
2488         struct qlcnic_adapter *adapter = sds_ring->adapter;
2489         int work_done;
2490
2491         work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2492
2493         if (work_done < budget) {
2494                 napi_complete(&sds_ring->napi);
2495                 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2496                         qlcnic_enable_int(sds_ring);
2497         }
2498
2499         return work_done;
2500 }
2501
2502 #ifdef CONFIG_NET_POLL_CONTROLLER
2503 static void qlcnic_poll_controller(struct net_device *netdev)
2504 {
2505         int ring;
2506         struct qlcnic_host_sds_ring *sds_ring;
2507         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2508         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
2509
2510         disable_irq(adapter->irq);
2511         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2512                 sds_ring = &recv_ctx->sds_rings[ring];
2513                 qlcnic_intr(adapter->irq, sds_ring);
2514         }
2515         enable_irq(adapter->irq);
2516 }
2517 #endif
2518
2519 static void
2520 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2521 {
2522         u32 val;
2523
2524         val = adapter->portnum & 0xf;
2525         val |= encoding << 7;
2526         val |= (jiffies - adapter->dev_rst_time) << 8;
2527
2528         QLCWR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2529         adapter->dev_rst_time = jiffies;
2530 }
2531
2532 static int
2533 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2534 {
2535         u32  val;
2536
2537         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2538                         state != QLCNIC_DEV_NEED_QUISCENT);
2539
2540         if (qlcnic_api_lock(adapter))
2541                 return -EIO;
2542
2543         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2544
2545         if (state == QLCNIC_DEV_NEED_RESET)
2546                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2547         else if (state == QLCNIC_DEV_NEED_QUISCENT)
2548                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2549
2550         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2551
2552         qlcnic_api_unlock(adapter);
2553
2554         return 0;
2555 }
2556
2557 static int
2558 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2559 {
2560         u32  val;
2561
2562         if (qlcnic_api_lock(adapter))
2563                 return -EBUSY;
2564
2565         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2566         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2567         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2568
2569         qlcnic_api_unlock(adapter);
2570
2571         return 0;
2572 }
2573
2574 static void
2575 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2576 {
2577         u32  val;
2578
2579         if (qlcnic_api_lock(adapter))
2580                 goto err;
2581
2582         val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2583         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2584         QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2585
2586         if (failed) {
2587                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
2588                 dev_info(&adapter->pdev->dev,
2589                                 "Device state set to Failed. Please Reboot\n");
2590         } else if (!(val & 0x11111111))
2591                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_COLD);
2592
2593         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2594         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2595         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2596
2597         qlcnic_api_unlock(adapter);
2598 err:
2599         adapter->fw_fail_cnt = 0;
2600         clear_bit(__QLCNIC_START_FW, &adapter->state);
2601         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2602 }
2603
2604 /* Grab api lock, before checking state */
2605 static int
2606 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2607 {
2608         int act, state;
2609
2610         state = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2611         act = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2612
2613         if (((state & 0x11111111) == (act & 0x11111111)) ||
2614                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2615                 return 0;
2616         else
2617                 return 1;
2618 }
2619
2620 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2621 {
2622         u32 val = QLCRD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2623
2624         if (val != QLCNIC_DRV_IDC_VER) {
2625                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2626                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2627         }
2628
2629         return 0;
2630 }
2631
2632 static int
2633 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2634 {
2635         u32 val, prev_state;
2636         u8 dev_init_timeo = adapter->dev_init_timeo;
2637         u8 portnum = adapter->portnum;
2638         u8 ret;
2639
2640         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2641                 return 1;
2642
2643         if (qlcnic_api_lock(adapter))
2644                 return -1;
2645
2646         val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2647         if (!(val & (1 << (portnum * 4)))) {
2648                 QLC_DEV_SET_REF_CNT(val, portnum);
2649                 QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2650         }
2651
2652         prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2653         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2654
2655         switch (prev_state) {
2656         case QLCNIC_DEV_COLD:
2657                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
2658                 QLCWR32(adapter, QLCNIC_CRB_DRV_IDC_VER, QLCNIC_DRV_IDC_VER);
2659                 qlcnic_idc_debug_info(adapter, 0);
2660                 qlcnic_api_unlock(adapter);
2661                 return 1;
2662
2663         case QLCNIC_DEV_READY:
2664                 ret = qlcnic_check_idc_ver(adapter);
2665                 qlcnic_api_unlock(adapter);
2666                 return ret;
2667
2668         case QLCNIC_DEV_NEED_RESET:
2669                 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2670                 QLC_DEV_SET_RST_RDY(val, portnum);
2671                 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2672                 break;
2673
2674         case QLCNIC_DEV_NEED_QUISCENT:
2675                 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2676                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
2677                 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2678                 break;
2679
2680         case QLCNIC_DEV_FAILED:
2681                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
2682                 qlcnic_api_unlock(adapter);
2683                 return -1;
2684
2685         case QLCNIC_DEV_INITIALIZING:
2686         case QLCNIC_DEV_QUISCENT:
2687                 break;
2688         }
2689
2690         qlcnic_api_unlock(adapter);
2691
2692         do {
2693                 msleep(1000);
2694                 prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2695
2696                 if (prev_state == QLCNIC_DEV_QUISCENT)
2697                         continue;
2698         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
2699
2700         if (!dev_init_timeo) {
2701                 dev_err(&adapter->pdev->dev,
2702                         "Waiting for device to initialize timeout\n");
2703                 return -1;
2704         }
2705
2706         if (qlcnic_api_lock(adapter))
2707                 return -1;
2708
2709         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2710         QLC_DEV_CLR_RST_QSCNT(val, portnum);
2711         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2712
2713         ret = qlcnic_check_idc_ver(adapter);
2714         qlcnic_api_unlock(adapter);
2715
2716         return ret;
2717 }
2718
2719 static void
2720 qlcnic_fwinit_work(struct work_struct *work)
2721 {
2722         struct qlcnic_adapter *adapter = container_of(work,
2723                         struct qlcnic_adapter, fw_work.work);
2724         u32 dev_state = 0xf;
2725
2726         if (qlcnic_api_lock(adapter))
2727                 goto err_ret;
2728
2729         dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2730         if (dev_state == QLCNIC_DEV_QUISCENT ||
2731             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2732                 qlcnic_api_unlock(adapter);
2733                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2734                                                 FW_POLL_DELAY * 2);
2735                 return;
2736         }
2737
2738         if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC) {
2739                 qlcnic_api_unlock(adapter);
2740                 goto wait_npar;
2741         }
2742
2743         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2744                 dev_err(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2745                                         adapter->reset_ack_timeo);
2746                 goto skip_ack_check;
2747         }
2748
2749         if (!qlcnic_check_drv_state(adapter)) {
2750 skip_ack_check:
2751                 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2752
2753                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2754                         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE,
2755                                                 QLCNIC_DEV_INITIALIZING);
2756                         set_bit(__QLCNIC_START_FW, &adapter->state);
2757                         QLCDB(adapter, DRV, "Restarting fw\n");
2758                         qlcnic_idc_debug_info(adapter, 0);
2759                 }
2760
2761                 qlcnic_api_unlock(adapter);
2762
2763                 if (!adapter->nic_ops->start_firmware(adapter)) {
2764                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2765                         adapter->fw_wait_cnt = 0;
2766                         return;
2767                 }
2768                 goto err_ret;
2769         }
2770
2771         qlcnic_api_unlock(adapter);
2772
2773 wait_npar:
2774         dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2775         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
2776
2777         switch (dev_state) {
2778         case QLCNIC_DEV_READY:
2779                 if (!adapter->nic_ops->start_firmware(adapter)) {
2780                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2781                         adapter->fw_wait_cnt = 0;
2782                         return;
2783                 }
2784         case QLCNIC_DEV_FAILED:
2785                 break;
2786         default:
2787                 qlcnic_schedule_work(adapter,
2788                         qlcnic_fwinit_work, FW_POLL_DELAY);
2789                 return;
2790         }
2791
2792 err_ret:
2793         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2794                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
2795         netif_device_attach(adapter->netdev);
2796         qlcnic_clr_all_drv_state(adapter, 0);
2797 }
2798
2799 static void
2800 qlcnic_detach_work(struct work_struct *work)
2801 {
2802         struct qlcnic_adapter *adapter = container_of(work,
2803                         struct qlcnic_adapter, fw_work.work);
2804         struct net_device *netdev = adapter->netdev;
2805         u32 status;
2806
2807         netif_device_detach(netdev);
2808
2809         /* Dont grab rtnl lock during Quiscent mode */
2810         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2811                 if (netif_running(netdev))
2812                         __qlcnic_down(adapter, netdev);
2813         } else
2814                 qlcnic_down(adapter, netdev);
2815
2816         status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2817
2818         if (status & QLCNIC_RCODE_FATAL_ERROR)
2819                 goto err_ret;
2820
2821         if (adapter->temp == QLCNIC_TEMP_PANIC)
2822                 goto err_ret;
2823
2824         if (qlcnic_set_drv_state(adapter, adapter->dev_state))
2825                 goto err_ret;
2826
2827         adapter->fw_wait_cnt = 0;
2828
2829         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2830
2831         return;
2832
2833 err_ret:
2834         dev_err(&adapter->pdev->dev, "detach failed; status=%d temp=%d\n",
2835                         status, adapter->temp);
2836         netif_device_attach(netdev);
2837         qlcnic_clr_all_drv_state(adapter, 1);
2838 }
2839
2840 /*Transit NPAR state to NON Operational */
2841 static void
2842 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
2843 {
2844         u32 state;
2845
2846         state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2847         if (state == QLCNIC_DEV_NPAR_NON_OPER)
2848                 return;
2849
2850         if (qlcnic_api_lock(adapter))
2851                 return;
2852         QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
2853         qlcnic_api_unlock(adapter);
2854 }
2855
2856 /*Transit to RESET state from READY state only */
2857 static void
2858 qlcnic_dev_request_reset(struct qlcnic_adapter *adapter)
2859 {
2860         u32 state;
2861
2862         adapter->need_fw_reset = 1;
2863         if (qlcnic_api_lock(adapter))
2864                 return;
2865
2866         state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2867
2868         if (state == QLCNIC_DEV_READY) {
2869                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_RESET);
2870                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
2871                 qlcnic_idc_debug_info(adapter, 0);
2872         }
2873
2874         QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
2875         qlcnic_api_unlock(adapter);
2876 }
2877
2878 /* Transit to NPAR READY state from NPAR NOT READY state */
2879 static void
2880 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
2881 {
2882         if (qlcnic_api_lock(adapter))
2883                 return;
2884
2885         QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_OPER);
2886         QLCDB(adapter, DRV, "NPAR operational state set\n");
2887
2888         qlcnic_api_unlock(adapter);
2889 }
2890
2891 static void
2892 qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2893                 work_func_t func, int delay)
2894 {
2895         if (test_bit(__QLCNIC_AER, &adapter->state))
2896                 return;
2897
2898         INIT_DELAYED_WORK(&adapter->fw_work, func);
2899         queue_delayed_work(qlcnic_wq, &adapter->fw_work,
2900                                         round_jiffies_relative(delay));
2901 }
2902
2903 static void
2904 qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter)
2905 {
2906         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2907                 msleep(10);
2908
2909         cancel_delayed_work_sync(&adapter->fw_work);
2910 }
2911
2912 static void
2913 qlcnic_attach_work(struct work_struct *work)
2914 {
2915         struct qlcnic_adapter *adapter = container_of(work,
2916                                 struct qlcnic_adapter, fw_work.work);
2917         struct net_device *netdev = adapter->netdev;
2918         u32 npar_state;
2919
2920         if (adapter->op_mode != QLCNIC_MGMT_FUNC) {
2921                 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2922                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
2923                         qlcnic_clr_all_drv_state(adapter, 0);
2924                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
2925                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
2926                                                         FW_POLL_DELAY);
2927                 else
2928                         goto attach;
2929                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
2930                 return;
2931         }
2932 attach:
2933         if (netif_running(netdev)) {
2934                 if (qlcnic_up(adapter, netdev))
2935                         goto done;
2936
2937                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2938         }
2939
2940 done:
2941         netif_device_attach(netdev);
2942         adapter->fw_fail_cnt = 0;
2943         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2944
2945         if (!qlcnic_clr_drv_state(adapter))
2946                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2947                                                         FW_POLL_DELAY);
2948 }
2949
2950 static int
2951 qlcnic_check_health(struct qlcnic_adapter *adapter)
2952 {
2953         u32 state = 0, heartbeat;
2954         struct net_device *netdev = adapter->netdev;
2955
2956         if (qlcnic_check_temp(adapter))
2957                 goto detach;
2958
2959         if (adapter->need_fw_reset)
2960                 qlcnic_dev_request_reset(adapter);
2961
2962         state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2963         if (state == QLCNIC_DEV_NEED_RESET) {
2964                 qlcnic_set_npar_non_operational(adapter);
2965                 adapter->need_fw_reset = 1;
2966         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
2967                 goto detach;
2968
2969         heartbeat = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
2970         if (heartbeat != adapter->heartbeat) {
2971                 adapter->heartbeat = heartbeat;
2972                 adapter->fw_fail_cnt = 0;
2973                 if (adapter->need_fw_reset)
2974                         goto detach;
2975
2976                 if (adapter->reset_context && auto_fw_reset) {
2977                         qlcnic_reset_hw_context(adapter);
2978                         adapter->netdev->trans_start = jiffies;
2979                 }
2980
2981                 return 0;
2982         }
2983
2984         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2985                 return 0;
2986
2987         qlcnic_dev_request_reset(adapter);
2988
2989         if (auto_fw_reset)
2990                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
2991
2992         dev_info(&netdev->dev, "firmware hang detected\n");
2993
2994 detach:
2995         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
2996                 QLCNIC_DEV_NEED_RESET;
2997
2998         if (auto_fw_reset &&
2999                 !test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) {
3000
3001                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3002                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3003         }
3004
3005         return 1;
3006 }
3007
3008 static void
3009 qlcnic_fw_poll_work(struct work_struct *work)
3010 {
3011         struct qlcnic_adapter *adapter = container_of(work,
3012                                 struct qlcnic_adapter, fw_work.work);
3013
3014         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3015                 goto reschedule;
3016
3017
3018         if (qlcnic_check_health(adapter))
3019                 return;
3020
3021         if (adapter->fhash.fnum)
3022                 qlcnic_prune_lb_filters(adapter);
3023
3024 reschedule:
3025         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3026 }
3027
3028 static int qlcnic_is_first_func(struct pci_dev *pdev)
3029 {
3030         struct pci_dev *oth_pdev;
3031         int val = pdev->devfn;
3032
3033         while (val-- > 0) {
3034                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3035                         (pdev->bus), pdev->bus->number,
3036                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3037                 if (!oth_pdev)
3038                         continue;
3039
3040                 if (oth_pdev->current_state != PCI_D3cold) {
3041                         pci_dev_put(oth_pdev);
3042                         return 0;
3043                 }
3044                 pci_dev_put(oth_pdev);
3045         }
3046         return 1;
3047 }
3048
3049 static int qlcnic_attach_func(struct pci_dev *pdev)
3050 {
3051         int err, first_func;
3052         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3053         struct net_device *netdev = adapter->netdev;
3054
3055         pdev->error_state = pci_channel_io_normal;
3056
3057         err = pci_enable_device(pdev);
3058         if (err)
3059                 return err;
3060
3061         pci_set_power_state(pdev, PCI_D0);
3062         pci_set_master(pdev);
3063         pci_restore_state(pdev);
3064
3065         first_func = qlcnic_is_first_func(pdev);
3066
3067         if (qlcnic_api_lock(adapter))
3068                 return -EINVAL;
3069
3070         if (adapter->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3071                 adapter->need_fw_reset = 1;
3072                 set_bit(__QLCNIC_START_FW, &adapter->state);
3073                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
3074                 QLCDB(adapter, DRV, "Restarting fw\n");
3075         }
3076         qlcnic_api_unlock(adapter);
3077
3078         err = adapter->nic_ops->start_firmware(adapter);
3079         if (err)
3080                 return err;
3081
3082         qlcnic_clr_drv_state(adapter);
3083         qlcnic_setup_intr(adapter);
3084
3085         if (netif_running(netdev)) {
3086                 err = qlcnic_attach(adapter);
3087                 if (err) {
3088                         qlcnic_clr_all_drv_state(adapter, 1);
3089                         clear_bit(__QLCNIC_AER, &adapter->state);
3090                         netif_device_attach(netdev);
3091                         return err;
3092                 }
3093
3094                 err = qlcnic_up(adapter, netdev);
3095                 if (err)
3096                         goto done;
3097
3098                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3099         }
3100  done:
3101         netif_device_attach(netdev);
3102         return err;
3103 }
3104
3105 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3106                                                 pci_channel_state_t state)
3107 {
3108         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3109         struct net_device *netdev = adapter->netdev;
3110
3111         if (state == pci_channel_io_perm_failure)
3112                 return PCI_ERS_RESULT_DISCONNECT;
3113
3114         if (state == pci_channel_io_normal)
3115                 return PCI_ERS_RESULT_RECOVERED;
3116
3117         set_bit(__QLCNIC_AER, &adapter->state);
3118         netif_device_detach(netdev);
3119
3120         cancel_delayed_work_sync(&adapter->fw_work);
3121
3122         if (netif_running(netdev))
3123                 qlcnic_down(adapter, netdev);
3124
3125         qlcnic_detach(adapter);
3126         qlcnic_teardown_intr(adapter);
3127
3128         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3129
3130         pci_save_state(pdev);
3131         pci_disable_device(pdev);
3132
3133         return PCI_ERS_RESULT_NEED_RESET;
3134 }
3135
3136 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3137 {
3138         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3139                                 PCI_ERS_RESULT_RECOVERED;
3140 }
3141
3142 static void qlcnic_io_resume(struct pci_dev *pdev)
3143 {
3144         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3145
3146         pci_cleanup_aer_uncorrect_error_status(pdev);
3147
3148         if (QLCRD32(adapter, QLCNIC_CRB_DEV_STATE) == QLCNIC_DEV_READY &&
3149             test_and_clear_bit(__QLCNIC_AER, &adapter->state))
3150                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3151                                                 FW_POLL_DELAY);
3152 }
3153
3154 static int
3155 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3156 {
3157         int err;
3158
3159         err = qlcnic_can_start_firmware(adapter);
3160         if (err)
3161                 return err;
3162
3163         err = qlcnic_check_npar_opertional(adapter);
3164         if (err)
3165                 return err;
3166
3167         err = qlcnic_initialize_nic(adapter);
3168         if (err)
3169                 return err;
3170
3171         qlcnic_check_options(adapter);
3172
3173         err = qlcnic_set_eswitch_port_config(adapter);
3174         if (err)
3175                 return err;
3176
3177         adapter->need_fw_reset = 0;
3178
3179         return err;
3180 }
3181
3182 static int
3183 qlcnicvf_config_bridged_mode(struct qlcnic_adapter *adapter, u32 enable)
3184 {
3185         return -EOPNOTSUPP;
3186 }
3187
3188 static int
3189 qlcnicvf_config_led(struct qlcnic_adapter *adapter, u32 state, u32 rate)
3190 {
3191         return -EOPNOTSUPP;
3192 }
3193
3194 static ssize_t
3195 qlcnic_store_bridged_mode(struct device *dev,
3196                 struct device_attribute *attr, const char *buf, size_t len)
3197 {
3198         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3199         unsigned long new;
3200         int ret = -EINVAL;
3201
3202         if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG))
3203                 goto err_out;
3204
3205         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3206                 goto err_out;
3207
3208         if (strict_strtoul(buf, 2, &new))
3209                 goto err_out;
3210
3211         if (!adapter->nic_ops->config_bridged_mode(adapter, !!new))
3212                 ret = len;
3213
3214 err_out:
3215         return ret;
3216 }
3217
3218 static ssize_t
3219 qlcnic_show_bridged_mode(struct device *dev,
3220                 struct device_attribute *attr, char *buf)
3221 {
3222         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3223         int bridged_mode = 0;
3224
3225         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
3226                 bridged_mode = !!(adapter->flags & QLCNIC_BRIDGE_ENABLED);
3227
3228         return sprintf(buf, "%d\n", bridged_mode);
3229 }
3230
3231 static struct device_attribute dev_attr_bridged_mode = {
3232        .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
3233        .show = qlcnic_show_bridged_mode,
3234        .store = qlcnic_store_bridged_mode,
3235 };
3236
3237 static ssize_t
3238 qlcnic_store_diag_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
3244         if (strict_strtoul(buf, 2, &new))
3245                 return -EINVAL;
3246
3247         if (!!new != !!(adapter->flags & QLCNIC_DIAG_ENABLED))
3248                 adapter->flags ^= QLCNIC_DIAG_ENABLED;
3249
3250         return len;
3251 }
3252
3253 static ssize_t
3254 qlcnic_show_diag_mode(struct device *dev,
3255                 struct device_attribute *attr, char *buf)
3256 {
3257         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3258
3259         return sprintf(buf, "%d\n",
3260                         !!(adapter->flags & QLCNIC_DIAG_ENABLED));
3261 }
3262
3263 static struct device_attribute dev_attr_diag_mode = {
3264         .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
3265         .show = qlcnic_show_diag_mode,
3266         .store = qlcnic_store_diag_mode,
3267 };
3268
3269 static int
3270 qlcnic_sysfs_validate_crb(struct qlcnic_adapter *adapter,
3271                 loff_t offset, size_t size)
3272 {
3273         size_t crb_size = 4;
3274
3275         if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
3276                 return -EIO;
3277
3278         if (offset < QLCNIC_PCI_CRBSPACE) {
3279                 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM,
3280                                         QLCNIC_PCI_CAMQM_END))
3281                         crb_size = 8;
3282                 else
3283                         return -EINVAL;
3284         }
3285
3286         if ((size != crb_size) || (offset & (crb_size-1)))
3287                 return  -EINVAL;
3288
3289         return 0;
3290 }
3291
3292 static ssize_t
3293 qlcnic_sysfs_read_crb(struct file *filp, struct kobject *kobj,
3294                 struct bin_attribute *attr,
3295                 char *buf, loff_t offset, size_t size)
3296 {
3297         struct device *dev = container_of(kobj, struct device, kobj);
3298         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3299         u32 data;
3300         u64 qmdata;
3301         int ret;
3302
3303         ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
3304         if (ret != 0)
3305                 return ret;
3306
3307         if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
3308                 qlcnic_pci_camqm_read_2M(adapter, offset, &qmdata);
3309                 memcpy(buf, &qmdata, size);
3310         } else {
3311                 data = QLCRD32(adapter, offset);
3312                 memcpy(buf, &data, size);
3313         }
3314         return size;
3315 }
3316
3317 static ssize_t
3318 qlcnic_sysfs_write_crb(struct file *filp, struct kobject *kobj,
3319                 struct bin_attribute *attr,
3320                 char *buf, loff_t offset, size_t size)
3321 {
3322         struct device *dev = container_of(kobj, struct device, kobj);
3323         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3324         u32 data;
3325         u64 qmdata;
3326         int ret;
3327
3328         ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
3329         if (ret != 0)
3330                 return ret;
3331
3332         if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
3333                 memcpy(&qmdata, buf, size);
3334                 qlcnic_pci_camqm_write_2M(adapter, offset, qmdata);
3335         } else {
3336                 memcpy(&data, buf, size);
3337                 QLCWR32(adapter, offset, data);
3338         }
3339         return size;
3340 }
3341
3342 static int
3343 qlcnic_sysfs_validate_mem(struct qlcnic_adapter *adapter,
3344                 loff_t offset, size_t size)
3345 {
3346         if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
3347                 return -EIO;
3348
3349         if ((size != 8) || (offset & 0x7))
3350                 return  -EIO;
3351
3352         return 0;
3353 }
3354
3355 static ssize_t
3356 qlcnic_sysfs_read_mem(struct file *filp, struct kobject *kobj,
3357                 struct bin_attribute *attr,
3358                 char *buf, loff_t offset, size_t size)
3359 {
3360         struct device *dev = container_of(kobj, struct device, kobj);
3361         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3362         u64 data;
3363         int ret;
3364
3365         ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
3366         if (ret != 0)
3367                 return ret;
3368
3369         if (qlcnic_pci_mem_read_2M(adapter, offset, &data))
3370                 return -EIO;
3371
3372         memcpy(buf, &data, size);
3373
3374         return size;
3375 }
3376
3377 static ssize_t
3378 qlcnic_sysfs_write_mem(struct file *filp, struct kobject *kobj,
3379                 struct bin_attribute *attr,
3380                 char *buf, loff_t offset, size_t size)
3381 {
3382         struct device *dev = container_of(kobj, struct device, kobj);
3383         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3384         u64 data;
3385         int ret;
3386
3387         ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
3388         if (ret != 0)
3389                 return ret;
3390
3391         memcpy(&data, buf, size);
3392
3393         if (qlcnic_pci_mem_write_2M(adapter, offset, data))
3394                 return -EIO;
3395
3396         return size;
3397 }
3398
3399
3400 static struct bin_attribute bin_attr_crb = {
3401         .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
3402         .size = 0,
3403         .read = qlcnic_sysfs_read_crb,
3404         .write = qlcnic_sysfs_write_crb,
3405 };
3406
3407 static struct bin_attribute bin_attr_mem = {
3408         .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
3409         .size = 0,
3410         .read = qlcnic_sysfs_read_mem,
3411         .write = qlcnic_sysfs_write_mem,
3412 };
3413
3414 static int
3415 validate_pm_config(struct qlcnic_adapter *adapter,
3416                         struct qlcnic_pm_func_cfg *pm_cfg, int count)
3417 {
3418
3419         u8 src_pci_func, s_esw_id, d_esw_id;
3420         u8 dest_pci_func;
3421         int i;
3422
3423         for (i = 0; i < count; i++) {
3424                 src_pci_func = pm_cfg[i].pci_func;
3425                 dest_pci_func = pm_cfg[i].dest_npar;
3426                 if (src_pci_func >= QLCNIC_MAX_PCI_FUNC
3427                                 || dest_pci_func >= QLCNIC_MAX_PCI_FUNC)
3428                         return QL_STATUS_INVALID_PARAM;
3429
3430                 if (adapter->npars[src_pci_func].type != QLCNIC_TYPE_NIC)
3431                         return QL_STATUS_INVALID_PARAM;
3432
3433                 if (adapter->npars[dest_pci_func].type != QLCNIC_TYPE_NIC)
3434                         return QL_STATUS_INVALID_PARAM;
3435
3436                 s_esw_id = adapter->npars[src_pci_func].phy_port;
3437                 d_esw_id = adapter->npars[dest_pci_func].phy_port;
3438
3439                 if (s_esw_id != d_esw_id)
3440                         return QL_STATUS_INVALID_PARAM;
3441
3442         }
3443         return 0;
3444
3445 }
3446
3447 static ssize_t
3448 qlcnic_sysfs_write_pm_config(struct file *filp, struct kobject *kobj,
3449         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3450 {
3451         struct device *dev = container_of(kobj, struct device, kobj);
3452         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3453         struct qlcnic_pm_func_cfg *pm_cfg;
3454         u32 id, action, pci_func;
3455         int count, rem, i, ret;
3456
3457         count   = size / sizeof(struct qlcnic_pm_func_cfg);
3458         rem     = size % sizeof(struct qlcnic_pm_func_cfg);
3459         if (rem)
3460                 return QL_STATUS_INVALID_PARAM;
3461
3462         pm_cfg = (struct qlcnic_pm_func_cfg *) buf;
3463
3464         ret = validate_pm_config(adapter, pm_cfg, count);
3465         if (ret)
3466                 return ret;
3467         for (i = 0; i < count; i++) {
3468                 pci_func = pm_cfg[i].pci_func;
3469                 action = !!pm_cfg[i].action;
3470                 id = adapter->npars[pci_func].phy_port;
3471                 ret = qlcnic_config_port_mirroring(adapter, id,
3472                                                 action, pci_func);
3473                 if (ret)
3474                         return ret;
3475         }
3476
3477         for (i = 0; i < count; i++) {
3478                 pci_func = pm_cfg[i].pci_func;
3479                 id = adapter->npars[pci_func].phy_port;
3480                 adapter->npars[pci_func].enable_pm = !!pm_cfg[i].action;
3481                 adapter->npars[pci_func].dest_npar = id;
3482         }
3483         return size;
3484 }
3485
3486 static ssize_t
3487 qlcnic_sysfs_read_pm_config(struct file *filp, struct kobject *kobj,
3488         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3489 {
3490         struct device *dev = container_of(kobj, struct device, kobj);
3491         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3492         struct qlcnic_pm_func_cfg pm_cfg[QLCNIC_MAX_PCI_FUNC];
3493         int i;
3494
3495         if (size != sizeof(pm_cfg))
3496                 return QL_STATUS_INVALID_PARAM;
3497
3498         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
3499                 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3500                         continue;
3501                 pm_cfg[i].action = adapter->npars[i].enable_pm;
3502                 pm_cfg[i].dest_npar = 0;
3503                 pm_cfg[i].pci_func = i;
3504         }
3505         memcpy(buf, &pm_cfg, size);
3506
3507         return size;
3508 }
3509
3510 static int
3511 validate_esw_config(struct qlcnic_adapter *adapter,
3512         struct qlcnic_esw_func_cfg *esw_cfg, int count)
3513 {
3514         u32 op_mode;
3515         u8 pci_func;
3516         int i;
3517
3518         op_mode = readl(adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE);
3519
3520         for (i = 0; i < count; i++) {
3521                 pci_func = esw_cfg[i].pci_func;
3522                 if (pci_func >= QLCNIC_MAX_PCI_FUNC)
3523                         return QL_STATUS_INVALID_PARAM;
3524
3525                 if (adapter->op_mode == QLCNIC_MGMT_FUNC)
3526                         if (adapter->npars[pci_func].type != QLCNIC_TYPE_NIC)
3527                                 return QL_STATUS_INVALID_PARAM;
3528
3529                 switch (esw_cfg[i].op_mode) {
3530                 case QLCNIC_PORT_DEFAULTS:
3531                         if (QLC_DEV_GET_DRV(op_mode, pci_func) !=
3532                                                 QLCNIC_NON_PRIV_FUNC) {
3533                                 if (esw_cfg[i].mac_anti_spoof != 0)
3534                                         return QL_STATUS_INVALID_PARAM;
3535                                 if (esw_cfg[i].mac_override != 1)
3536                                         return QL_STATUS_INVALID_PARAM;
3537                                 if (esw_cfg[i].promisc_mode != 1)
3538                                         return QL_STATUS_INVALID_PARAM;
3539                         }
3540                         break;
3541                 case QLCNIC_ADD_VLAN:
3542                         if (!IS_VALID_VLAN(esw_cfg[i].vlan_id))
3543                                 return QL_STATUS_INVALID_PARAM;
3544                         if (!esw_cfg[i].op_type)
3545                                 return QL_STATUS_INVALID_PARAM;
3546                         break;
3547                 case QLCNIC_DEL_VLAN:
3548                         if (!esw_cfg[i].op_type)
3549                                 return QL_STATUS_INVALID_PARAM;
3550                         break;
3551                 default:
3552                         return QL_STATUS_INVALID_PARAM;
3553                 }
3554         }
3555         return 0;
3556 }
3557
3558 static ssize_t
3559 qlcnic_sysfs_write_esw_config(struct file *file, struct kobject *kobj,
3560         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3561 {
3562         struct device *dev = container_of(kobj, struct device, kobj);
3563         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3564         struct qlcnic_esw_func_cfg *esw_cfg;
3565         struct qlcnic_npar_info *npar;
3566         int count, rem, i, ret;
3567         u8 pci_func, op_mode = 0;
3568
3569         count   = size / sizeof(struct qlcnic_esw_func_cfg);
3570         rem     = size % sizeof(struct qlcnic_esw_func_cfg);
3571         if (rem)
3572                 return QL_STATUS_INVALID_PARAM;
3573
3574         esw_cfg = (struct qlcnic_esw_func_cfg *) buf;
3575         ret = validate_esw_config(adapter, esw_cfg, count);
3576         if (ret)
3577                 return ret;
3578
3579         for (i = 0; i < count; i++) {
3580                 if (adapter->op_mode == QLCNIC_MGMT_FUNC)
3581                         if (qlcnic_config_switch_port(adapter, &esw_cfg[i]))
3582                                 return QL_STATUS_INVALID_PARAM;
3583
3584                 if (adapter->ahw.pci_func != esw_cfg[i].pci_func)
3585                         continue;
3586
3587                 op_mode = esw_cfg[i].op_mode;
3588                 qlcnic_get_eswitch_port_config(adapter, &esw_cfg[i]);
3589                 esw_cfg[i].op_mode = op_mode;
3590                 esw_cfg[i].pci_func = adapter->ahw.pci_func;
3591
3592                 switch (esw_cfg[i].op_mode) {
3593                 case QLCNIC_PORT_DEFAULTS:
3594                         qlcnic_set_eswitch_port_features(adapter, &esw_cfg[i]);
3595                         break;
3596                 case QLCNIC_ADD_VLAN:
3597                         qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
3598                         break;
3599                 case QLCNIC_DEL_VLAN:
3600                         esw_cfg[i].vlan_id = 0;
3601                         qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
3602                         break;
3603                 }
3604         }
3605
3606         if (adapter->op_mode != QLCNIC_MGMT_FUNC)
3607                 goto out;
3608
3609         for (i = 0; i < count; i++) {
3610                 pci_func = esw_cfg[i].pci_func;
3611                 npar = &adapter->npars[pci_func];
3612                 switch (esw_cfg[i].op_mode) {
3613                 case QLCNIC_PORT_DEFAULTS:
3614                         npar->promisc_mode = esw_cfg[i].promisc_mode;
3615                         npar->mac_override = esw_cfg[i].mac_override;
3616                         npar->offload_flags = esw_cfg[i].offload_flags;
3617                         npar->mac_anti_spoof = esw_cfg[i].mac_anti_spoof;
3618                         npar->discard_tagged = esw_cfg[i].discard_tagged;
3619                         break;
3620                 case QLCNIC_ADD_VLAN:
3621                         npar->pvid = esw_cfg[i].vlan_id;
3622                         break;
3623                 case QLCNIC_DEL_VLAN:
3624                         npar->pvid = 0;
3625                         break;
3626                 }
3627         }
3628 out:
3629         return size;
3630 }
3631
3632 static ssize_t
3633 qlcnic_sysfs_read_esw_config(struct file *file, struct kobject *kobj,
3634         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3635 {
3636         struct device *dev = container_of(kobj, struct device, kobj);
3637         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3638         struct qlcnic_esw_func_cfg esw_cfg[QLCNIC_MAX_PCI_FUNC];
3639         u8 i;
3640
3641         if (size != sizeof(esw_cfg))
3642                 return QL_STATUS_INVALID_PARAM;
3643
3644         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
3645                 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3646                         continue;
3647                 esw_cfg[i].pci_func = i;
3648                 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg[i]))
3649                         return QL_STATUS_INVALID_PARAM;
3650         }
3651         memcpy(buf, &esw_cfg, size);
3652
3653         return size;
3654 }
3655
3656 static int
3657 validate_npar_config(struct qlcnic_adapter *adapter,
3658                                 struct qlcnic_npar_func_cfg *np_cfg, int count)
3659 {
3660         u8 pci_func, i;
3661
3662         for (i = 0; i < count; i++) {
3663                 pci_func = np_cfg[i].pci_func;
3664                 if (pci_func >= QLCNIC_MAX_PCI_FUNC)
3665                         return QL_STATUS_INVALID_PARAM;
3666
3667                 if (adapter->npars[pci_func].type != QLCNIC_TYPE_NIC)
3668                         return QL_STATUS_INVALID_PARAM;
3669
3670                 if (!IS_VALID_BW(np_cfg[i].min_bw) ||
3671                     !IS_VALID_BW(np_cfg[i].max_bw))
3672                         return QL_STATUS_INVALID_PARAM;
3673         }
3674         return 0;
3675 }
3676
3677 static ssize_t
3678 qlcnic_sysfs_write_npar_config(struct file *file, struct kobject *kobj,
3679         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3680 {
3681         struct device *dev = container_of(kobj, struct device, kobj);
3682         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3683         struct qlcnic_info nic_info;
3684         struct qlcnic_npar_func_cfg *np_cfg;
3685         int i, count, rem, ret;
3686         u8 pci_func;
3687
3688         count   = size / sizeof(struct qlcnic_npar_func_cfg);
3689         rem     = size % sizeof(struct qlcnic_npar_func_cfg);
3690         if (rem)
3691                 return QL_STATUS_INVALID_PARAM;
3692
3693         np_cfg = (struct qlcnic_npar_func_cfg *) buf;
3694         ret = validate_npar_config(adapter, np_cfg, count);
3695         if (ret)
3696                 return ret;
3697
3698         for (i = 0; i < count ; i++) {
3699                 pci_func = np_cfg[i].pci_func;
3700                 ret = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
3701                 if (ret)
3702                         return ret;
3703                 nic_info.pci_func = pci_func;
3704                 nic_info.min_tx_bw = np_cfg[i].min_bw;
3705                 nic_info.max_tx_bw = np_cfg[i].max_bw;
3706                 ret = qlcnic_set_nic_info(adapter, &nic_info);
3707                 if (ret)
3708                         return ret;
3709                 adapter->npars[i].min_bw = nic_info.min_tx_bw;
3710                 adapter->npars[i].max_bw = nic_info.max_tx_bw;
3711         }
3712
3713         return size;
3714
3715 }
3716 static ssize_t
3717 qlcnic_sysfs_read_npar_config(struct file *file, struct kobject *kobj,
3718         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3719 {
3720         struct device *dev = container_of(kobj, struct device, kobj);
3721         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3722         struct qlcnic_info nic_info;
3723         struct qlcnic_npar_func_cfg np_cfg[QLCNIC_MAX_PCI_FUNC];
3724         int i, ret;
3725
3726         if (size != sizeof(np_cfg))
3727                 return QL_STATUS_INVALID_PARAM;
3728
3729         for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) {
3730                 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3731                         continue;
3732                 ret = qlcnic_get_nic_info(adapter, &nic_info, i);
3733                 if (ret)
3734                         return ret;
3735
3736                 np_cfg[i].pci_func = i;
3737                 np_cfg[i].op_mode = (u8)nic_info.op_mode;
3738                 np_cfg[i].port_num = nic_info.phys_port;
3739                 np_cfg[i].fw_capab = nic_info.capabilities;
3740                 np_cfg[i].min_bw = nic_info.min_tx_bw ;
3741                 np_cfg[i].max_bw = nic_info.max_tx_bw;
3742                 np_cfg[i].max_tx_queues = nic_info.max_tx_ques;
3743                 np_cfg[i].max_rx_queues = nic_info.max_rx_ques;
3744         }
3745         memcpy(buf, &np_cfg, size);
3746         return size;
3747 }
3748
3749 static ssize_t
3750 qlcnic_sysfs_get_port_stats(struct file *file, struct kobject *kobj,
3751         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3752 {
3753         struct device *dev = container_of(kobj, struct device, kobj);
3754         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3755         struct qlcnic_esw_statistics port_stats;
3756         int ret;
3757
3758         if (size != sizeof(struct qlcnic_esw_statistics))
3759                 return QL_STATUS_INVALID_PARAM;
3760
3761         if (offset >= QLCNIC_MAX_PCI_FUNC)
3762                 return QL_STATUS_INVALID_PARAM;
3763
3764         memset(&port_stats, 0, size);
3765         ret = qlcnic_get_port_stats(adapter, offset, QLCNIC_QUERY_RX_COUNTER,
3766                                                                 &port_stats.rx);
3767         if (ret)
3768                 return ret;
3769
3770         ret = qlcnic_get_port_stats(adapter, offset, QLCNIC_QUERY_TX_COUNTER,
3771                                                                 &port_stats.tx);
3772         if (ret)
3773                 return ret;
3774
3775         memcpy(buf, &port_stats, size);
3776         return size;
3777 }
3778
3779 static ssize_t
3780 qlcnic_sysfs_get_esw_stats(struct file *file, struct kobject *kobj,
3781         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3782 {
3783         struct device *dev = container_of(kobj, struct device, kobj);
3784         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3785         struct qlcnic_esw_statistics esw_stats;
3786         int ret;
3787
3788         if (size != sizeof(struct qlcnic_esw_statistics))
3789                 return QL_STATUS_INVALID_PARAM;
3790
3791         if (offset >= QLCNIC_NIU_MAX_XG_PORTS)
3792                 return QL_STATUS_INVALID_PARAM;
3793
3794         memset(&esw_stats, 0, size);
3795         ret = qlcnic_get_eswitch_stats(adapter, offset, QLCNIC_QUERY_RX_COUNTER,
3796                                                                 &esw_stats.rx);
3797         if (ret)
3798                 return ret;
3799
3800         ret = qlcnic_get_eswitch_stats(adapter, offset, QLCNIC_QUERY_TX_COUNTER,
3801                                                                 &esw_stats.tx);
3802         if (ret)
3803                 return ret;
3804
3805         memcpy(buf, &esw_stats, size);
3806         return size;
3807 }
3808
3809 static ssize_t
3810 qlcnic_sysfs_clear_esw_stats(struct file *file, struct kobject *kobj,
3811         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3812 {
3813         struct device *dev = container_of(kobj, struct device, kobj);
3814         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3815         int ret;
3816
3817         if (offset >= QLCNIC_NIU_MAX_XG_PORTS)
3818                 return QL_STATUS_INVALID_PARAM;
3819
3820         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_ESWITCH, offset,
3821                                                 QLCNIC_QUERY_RX_COUNTER);
3822         if (ret)
3823                 return ret;
3824
3825         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_ESWITCH, offset,
3826                                                 QLCNIC_QUERY_TX_COUNTER);
3827         if (ret)
3828                 return ret;
3829
3830         return size;
3831 }
3832
3833 static ssize_t
3834 qlcnic_sysfs_clear_port_stats(struct file *file, struct kobject *kobj,
3835         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3836 {
3837
3838         struct device *dev = container_of(kobj, struct device, kobj);
3839         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3840         int ret;
3841
3842         if (offset >= QLCNIC_MAX_PCI_FUNC)
3843                 return QL_STATUS_INVALID_PARAM;
3844
3845         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_PORT, offset,
3846                                                 QLCNIC_QUERY_RX_COUNTER);
3847         if (ret)
3848                 return ret;
3849
3850         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_PORT, offset,
3851                                                 QLCNIC_QUERY_TX_COUNTER);
3852         if (ret)
3853                 return ret;
3854
3855         return size;
3856 }
3857
3858 static ssize_t
3859 qlcnic_sysfs_read_pci_config(struct file *file, struct kobject *kobj,
3860         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3861 {
3862         struct device *dev = container_of(kobj, struct device, kobj);
3863         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3864         struct qlcnic_pci_func_cfg pci_cfg[QLCNIC_MAX_PCI_FUNC];
3865         struct qlcnic_pci_info *pci_info;
3866         int i, ret;
3867
3868         if (size != sizeof(pci_cfg))
3869                 return QL_STATUS_INVALID_PARAM;
3870
3871         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
3872         if (!pci_info)
3873                 return -ENOMEM;
3874
3875         ret = qlcnic_get_pci_info(adapter, pci_info);
3876         if (ret) {
3877                 kfree(pci_info);
3878                 return ret;
3879         }
3880
3881         for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) {
3882                 pci_cfg[i].pci_func = pci_info[i].id;
3883                 pci_cfg[i].func_type = pci_info[i].type;
3884                 pci_cfg[i].port_num = pci_info[i].default_port;
3885                 pci_cfg[i].min_bw = pci_info[i].tx_min_bw;
3886                 pci_cfg[i].max_bw = pci_info[i].tx_max_bw;
3887                 memcpy(&pci_cfg[i].def_mac_addr, &pci_info[i].mac, ETH_ALEN);
3888         }
3889         memcpy(buf, &pci_cfg, size);
3890         kfree(pci_info);
3891         return size;
3892 }
3893 static struct bin_attribute bin_attr_npar_config = {
3894         .attr = {.name = "npar_config", .mode = (S_IRUGO | S_IWUSR)},
3895         .size = 0,
3896         .read = qlcnic_sysfs_read_npar_config,
3897         .write = qlcnic_sysfs_write_npar_config,
3898 };
3899
3900 static struct bin_attribute bin_attr_pci_config = {
3901         .attr = {.name = "pci_config", .mode = (S_IRUGO | S_IWUSR)},
3902         .size = 0,
3903         .read = qlcnic_sysfs_read_pci_config,
3904         .write = NULL,
3905 };
3906
3907 static struct bin_attribute bin_attr_port_stats = {
3908         .attr = {.name = "port_stats", .mode = (S_IRUGO | S_IWUSR)},
3909         .size = 0,
3910         .read = qlcnic_sysfs_get_port_stats,
3911         .write = qlcnic_sysfs_clear_port_stats,
3912 };
3913
3914 static struct bin_attribute bin_attr_esw_stats = {
3915         .attr = {.name = "esw_stats", .mode = (S_IRUGO | S_IWUSR)},
3916         .size = 0,
3917         .read = qlcnic_sysfs_get_esw_stats,
3918         .write = qlcnic_sysfs_clear_esw_stats,
3919 };
3920
3921 static struct bin_attribute bin_attr_esw_config = {
3922         .attr = {.name = "esw_config", .mode = (S_IRUGO | S_IWUSR)},
3923         .size = 0,
3924         .read = qlcnic_sysfs_read_esw_config,
3925         .write = qlcnic_sysfs_write_esw_config,
3926 };
3927
3928 static struct bin_attribute bin_attr_pm_config = {
3929         .attr = {.name = "pm_config", .mode = (S_IRUGO | S_IWUSR)},
3930         .size = 0,
3931         .read = qlcnic_sysfs_read_pm_config,
3932         .write = qlcnic_sysfs_write_pm_config,
3933 };
3934
3935 static void
3936 qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter)
3937 {
3938         struct device *dev = &adapter->pdev->dev;
3939
3940         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
3941                 if (device_create_file(dev, &dev_attr_bridged_mode))
3942                         dev_warn(dev,
3943                                 "failed to create bridged_mode sysfs entry\n");
3944 }
3945
3946 static void
3947 qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter)
3948 {
3949         struct device *dev = &adapter->pdev->dev;
3950
3951         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
3952                 device_remove_file(dev, &dev_attr_bridged_mode);
3953 }
3954
3955 static void
3956 qlcnic_create_diag_entries(struct qlcnic_adapter *adapter)
3957 {
3958         struct device *dev = &adapter->pdev->dev;
3959
3960         if (device_create_bin_file(dev, &bin_attr_port_stats))
3961                 dev_info(dev, "failed to create port stats sysfs entry");
3962
3963         if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
3964                 return;
3965         if (device_create_file(dev, &dev_attr_diag_mode))
3966                 dev_info(dev, "failed to create diag_mode sysfs entry\n");
3967         if (device_create_bin_file(dev, &bin_attr_crb))
3968                 dev_info(dev, "failed to create crb sysfs entry\n");
3969         if (device_create_bin_file(dev, &bin_attr_mem))
3970                 dev_info(dev, "failed to create mem sysfs entry\n");
3971         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
3972                 return;
3973         if (device_create_bin_file(dev, &bin_attr_esw_config))
3974                 dev_info(dev, "failed to create esw config sysfs entry");
3975         if (adapter->op_mode != QLCNIC_MGMT_FUNC)
3976                 return;
3977         if (device_create_bin_file(dev, &bin_attr_pci_config))
3978                 dev_info(dev, "failed to create pci config sysfs entry");
3979         if (device_create_bin_file(dev, &bin_attr_npar_config))
3980                 dev_info(dev, "failed to create npar config sysfs entry");
3981         if (device_create_bin_file(dev, &bin_attr_pm_config))
3982                 dev_info(dev, "failed to create pm config sysfs entry");
3983         if (device_create_bin_file(dev, &bin_attr_esw_stats))
3984                 dev_info(dev, "failed to create eswitch stats sysfs entry");
3985 }
3986
3987 static void
3988 qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter)
3989 {
3990         struct device *dev = &adapter->pdev->dev;
3991
3992         device_remove_bin_file(dev, &bin_attr_port_stats);
3993
3994         if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
3995                 return;
3996         device_remove_file(dev, &dev_attr_diag_mode);
3997         device_remove_bin_file(dev, &bin_attr_crb);
3998         device_remove_bin_file(dev, &bin_attr_mem);
3999         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
4000                 return;
4001         device_remove_bin_file(dev, &bin_attr_esw_config);
4002         if (adapter->op_mode != QLCNIC_MGMT_FUNC)
4003                 return;
4004         device_remove_bin_file(dev, &bin_attr_pci_config);
4005         device_remove_bin_file(dev, &bin_attr_npar_config);
4006         device_remove_bin_file(dev, &bin_attr_pm_config);
4007         device_remove_bin_file(dev, &bin_attr_esw_stats);
4008 }
4009
4010 #ifdef CONFIG_INET
4011
4012 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4013
4014 static void
4015 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4016                         struct net_device *dev, unsigned long event)
4017 {
4018         struct in_device *indev;
4019
4020         indev = in_dev_get(dev);
4021         if (!indev)
4022                 return;
4023
4024         for_ifa(indev) {
4025                 switch (event) {
4026                 case NETDEV_UP:
4027                         qlcnic_config_ipaddr(adapter,
4028                                         ifa->ifa_address, QLCNIC_IP_UP);
4029                         break;
4030                 case NETDEV_DOWN:
4031                         qlcnic_config_ipaddr(adapter,
4032                                         ifa->ifa_address, QLCNIC_IP_DOWN);
4033                         break;
4034                 default:
4035                         break;
4036                 }
4037         } endfor_ifa(indev);
4038
4039         in_dev_put(indev);
4040 }
4041
4042 static void
4043 qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4044 {
4045         struct qlcnic_adapter *adapter = netdev_priv(netdev);
4046         struct net_device *dev;
4047         u16 vid;
4048
4049         qlcnic_config_indev_addr(adapter, netdev, event);
4050
4051         if (!adapter->vlgrp)
4052                 return;
4053
4054         for (vid = 0; vid < VLAN_N_VID; vid++) {
4055                 dev = vlan_group_get_device(adapter->vlgrp, vid);
4056                 if (!dev)
4057                         continue;
4058
4059                 qlcnic_config_indev_addr(adapter, dev, event);
4060         }
4061 }
4062
4063 static int qlcnic_netdev_event(struct notifier_block *this,
4064                                  unsigned long event, void *ptr)
4065 {
4066         struct qlcnic_adapter *adapter;
4067         struct net_device *dev = (struct net_device *)ptr;
4068
4069 recheck:
4070         if (dev == NULL)
4071                 goto done;
4072
4073         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4074                 dev = vlan_dev_real_dev(dev);
4075                 goto recheck;
4076         }
4077
4078         if (!is_qlcnic_netdev(dev))
4079                 goto done;
4080
4081         adapter = netdev_priv(dev);
4082
4083         if (!adapter)
4084                 goto done;
4085
4086         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4087                 goto done;
4088
4089         qlcnic_config_indev_addr(adapter, dev, event);
4090 done:
4091         return NOTIFY_DONE;
4092 }
4093
4094 static int
4095 qlcnic_inetaddr_event(struct notifier_block *this,
4096                 unsigned long event, void *ptr)
4097 {
4098         struct qlcnic_adapter *adapter;
4099         struct net_device *dev;
4100
4101         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4102
4103         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4104
4105 recheck:
4106         if (dev == NULL)
4107                 goto done;
4108
4109         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4110                 dev = vlan_dev_real_dev(dev);
4111                 goto recheck;
4112         }
4113
4114         if (!is_qlcnic_netdev(dev))
4115                 goto done;
4116
4117         adapter = netdev_priv(dev);
4118
4119         if (!adapter)
4120                 goto done;
4121
4122         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4123                 goto done;
4124
4125         switch (event) {
4126         case NETDEV_UP:
4127                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4128                 break;
4129         case NETDEV_DOWN:
4130                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4131                 break;
4132         default:
4133                 break;
4134         }
4135
4136 done:
4137         return NOTIFY_DONE;
4138 }
4139
4140 static struct notifier_block    qlcnic_netdev_cb = {
4141         .notifier_call = qlcnic_netdev_event,
4142 };
4143
4144 static struct notifier_block qlcnic_inetaddr_cb = {
4145         .notifier_call = qlcnic_inetaddr_event,
4146 };
4147 #else
4148 static void
4149 qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4150 { }
4151 #endif
4152 static struct pci_error_handlers qlcnic_err_handler = {
4153         .error_detected = qlcnic_io_error_detected,
4154         .slot_reset = qlcnic_io_slot_reset,
4155         .resume = qlcnic_io_resume,
4156 };
4157
4158 static struct pci_driver qlcnic_driver = {
4159         .name = qlcnic_driver_name,
4160         .id_table = qlcnic_pci_tbl,
4161         .probe = qlcnic_probe,
4162         .remove = __devexit_p(qlcnic_remove),
4163 #ifdef CONFIG_PM
4164         .suspend = qlcnic_suspend,
4165         .resume = qlcnic_resume,
4166 #endif
4167         .shutdown = qlcnic_shutdown,
4168         .err_handler = &qlcnic_err_handler
4169
4170 };
4171
4172 static int __init qlcnic_init_module(void)
4173 {
4174         int ret;
4175
4176         printk(KERN_INFO "%s\n", qlcnic_driver_string);
4177
4178         qlcnic_wq = create_singlethread_workqueue("qlcnic");
4179         if (qlcnic_wq == NULL) {
4180                 printk(KERN_ERR "qlcnic: cannot create workqueue\n");
4181                 return -ENOMEM;
4182         }
4183
4184 #ifdef CONFIG_INET
4185         register_netdevice_notifier(&qlcnic_netdev_cb);
4186         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4187 #endif
4188
4189         ret = pci_register_driver(&qlcnic_driver);
4190         if (ret) {
4191 #ifdef CONFIG_INET
4192                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4193                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4194 #endif
4195                 destroy_workqueue(qlcnic_wq);
4196         }
4197
4198         return ret;
4199 }
4200
4201 module_init(qlcnic_init_module);
4202
4203 static void __exit qlcnic_exit_module(void)
4204 {
4205
4206         pci_unregister_driver(&qlcnic_driver);
4207
4208 #ifdef CONFIG_INET
4209         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4210         unregister_netdevice_notifier(&qlcnic_netdev_cb);
4211 #endif
4212         destroy_workqueue(qlcnic_wq);
4213 }
4214
4215 module_exit(qlcnic_exit_module);