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