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, 0644);
  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, 0644);
  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, 0644);
  43 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled");
  44
  45 static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
  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, 0644);
  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, 0644);
  55 MODULE_PARM_DESC(qlcnic_config_npars, "Configure NPARs (0=disabled, 1=enabled");
  56
  57 static int __devinit qlcnic_probe(struct pci_dev *pdev,
  58                 const struct pci_device_id *ent);
  59 static void __devexit qlcnic_remove(struct pci_dev *pdev);
  60 static int qlcnic_open(struct net_device *netdev);
  61 static int qlcnic_close(struct net_device *netdev);
  62 static void qlcnic_tx_timeout(struct net_device *netdev);
  63 static void qlcnic_attach_work(struct work_struct *work);
  64 static void qlcnic_fwinit_work(struct work_struct *work);
  65 static void qlcnic_fw_poll_work(struct work_struct *work);
  66 static void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
  67                 work_func_t func, int delay);
  68 static void qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter);
  69 static int qlcnic_poll(struct napi_struct *napi, int budget);
  70 static int qlcnic_rx_poll(struct napi_struct *napi, int budget);
  71 #ifdef CONFIG_NET_POLL_CONTROLLER
  72 static void qlcnic_poll_controller(struct net_device *netdev);
  73 #endif
  74
  75 static void qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter);
  76 static void qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter);
  77 static void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter);
  78 static void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter);
  79
  80 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
  81 static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8);
  82 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
  83
  84 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
  85 static irqreturn_t qlcnic_intr(int irq, void *data);
  86 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
  87 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
  88
  89 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
  90 static void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long);
  91 static int qlcnic_start_firmware(struct qlcnic_adapter *);
  92
  93 static void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter);
  94 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
  95 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
  96 static int qlcnicvf_config_led(struct qlcnic_adapter *, u32, u32);
  97 static int qlcnicvf_config_bridged_mode(struct qlcnic_adapter *, u32);
  98 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
  99 static void qlcnic_set_netdev_features(struct qlcnic_adapter *,
 100                                 struct qlcnic_esw_func_cfg *);
 101 /*  PCI Device ID Table  */
 102 #define ENTRY(device) \
 103         {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
 104         .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
 105
 106 #define PCI_DEVICE_ID_QLOGIC_QLE824X  0x8020
 107
 108 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
 109         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
 110         {0,}
 111 };
 112
 113 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
 114
 115
 116 void
 117 qlcnic_update_cmd_producer(struct qlcnic_adapter *adapter,
 118                 struct qlcnic_host_tx_ring *tx_ring)
 119 {
 120         writel(tx_ring->producer, tx_ring->crb_cmd_producer);
 121 }
 122
 123 static const u32 msi_tgt_status[8] = {
 124         ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
 125         ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
 126         ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
 127         ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
 128 };
 129
 130 static const
 131 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
 132
 133 static inline void qlcnic_disable_int(struct qlcnic_host_sds_ring *sds_ring)
 134 {
 135         writel(0, sds_ring->crb_intr_mask);
 136 }
 137
 138 static inline void qlcnic_enable_int(struct qlcnic_host_sds_ring *sds_ring)
 139 {
 140         struct qlcnic_adapter *adapter = sds_ring->adapter;
 141
 142         writel(0x1, sds_ring->crb_intr_mask);
 143
 144         if (!QLCNIC_IS_MSI_FAMILY(adapter))
 145                 writel(0xfbff, adapter->tgt_mask_reg);
 146 }
 147
 148 static int
 149 qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
 150 {
 151         int size = sizeof(struct qlcnic_host_sds_ring) * count;
 152
 153         recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
 154
 155         return recv_ctx->sds_rings == NULL;
 156 }
 157
 158 static void
 159 qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
 160 {
 161         if (recv_ctx->sds_rings != NULL)
 162                 kfree(recv_ctx->sds_rings);
 163
 164         recv_ctx->sds_rings = NULL;
 165 }
 166
 167 static int
 168 qlcnic_napi_add(struct qlcnic_adapter *adapter, struct net_device *netdev)
 169 {
 170         int ring;
 171         struct qlcnic_host_sds_ring *sds_ring;
 172         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
 173
 174         if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
 175                 return -ENOMEM;
 176
 177         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 178                 sds_ring = &recv_ctx->sds_rings[ring];
 179
 180                 if (ring == adapter->max_sds_rings - 1)
 181                         netif_napi_add(netdev, &sds_ring->napi, qlcnic_poll,
 182                                 QLCNIC_NETDEV_WEIGHT/adapter->max_sds_rings);
 183                 else
 184                         netif_napi_add(netdev, &sds_ring->napi,
 185                                 qlcnic_rx_poll, QLCNIC_NETDEV_WEIGHT*2);
 186         }
 187
 188         return 0;
 189 }
 190
 191 static void
 192 qlcnic_napi_del(struct qlcnic_adapter *adapter)
 193 {
 194         int ring;
 195         struct qlcnic_host_sds_ring *sds_ring;
 196         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
 197
 198         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 199                 sds_ring = &recv_ctx->sds_rings[ring];
 200                 netif_napi_del(&sds_ring->napi);
 201         }
 202
 203         qlcnic_free_sds_rings(&adapter->recv_ctx);
 204 }
 205
 206 static void
 207 qlcnic_napi_enable(struct qlcnic_adapter *adapter)
 208 {
 209         int ring;
 210         struct qlcnic_host_sds_ring *sds_ring;
 211         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
 212
 213         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
 214                 return;
 215
 216         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 217                 sds_ring = &recv_ctx->sds_rings[ring];
 218                 napi_enable(&sds_ring->napi);
 219                 qlcnic_enable_int(sds_ring);
 220         }
 221 }
 222
 223 static void
 224 qlcnic_napi_disable(struct qlcnic_adapter *adapter)
 225 {
 226         int ring;
 227         struct qlcnic_host_sds_ring *sds_ring;
 228         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
 229
 230         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
 231                 return;
 232
 233         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 234                 sds_ring = &recv_ctx->sds_rings[ring];
 235                 qlcnic_disable_int(sds_ring);
 236                 napi_synchronize(&sds_ring->napi);
 237                 napi_disable(&sds_ring->napi);
 238         }
 239 }
 240
 241 static void qlcnic_clear_stats(struct qlcnic_adapter *adapter)
 242 {
 243         memset(&adapter->stats, 0, sizeof(adapter->stats));
 244 }
 245
 246 static void qlcnic_set_msix_bit(struct pci_dev *pdev, int enable)
 247 {
 248         u32 control;
 249         int pos;
 250
 251         pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
 252         if (pos) {
 253                 pci_read_config_dword(pdev, pos, &control);
 254                 if (enable)
 255                         control |= PCI_MSIX_FLAGS_ENABLE;
 256                 else
 257                         control = 0;
 258                 pci_write_config_dword(pdev, pos, control);
 259         }
 260 }
 261
 262 static void qlcnic_init_msix_entries(struct qlcnic_adapter *adapter, int count)
 263 {
 264         int i;
 265
 266         for (i = 0; i < count; i++)
 267                 adapter->msix_entries[i].entry = i;
 268 }
 269
 270 static int
 271 qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
 272 {
 273         u8 mac_addr[ETH_ALEN];
 274         struct net_device *netdev = adapter->netdev;
 275         struct pci_dev *pdev = adapter->pdev;
 276
 277         if (qlcnic_get_mac_address(adapter, mac_addr) != 0)
 278                 return -EIO;
 279
 280         memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
 281         memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
 282         memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
 283
 284         /* set station address */
 285
 286         if (!is_valid_ether_addr(netdev->perm_addr))
 287                 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
 288                                         netdev->dev_addr);
 289
 290         return 0;
 291 }
 292
 293 static int qlcnic_set_mac(struct net_device *netdev, void *p)
 294 {
 295         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 296         struct sockaddr *addr = p;
 297
 298         if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
 299                 return -EOPNOTSUPP;
 300
 301         if (!is_valid_ether_addr(addr->sa_data))
 302                 return -EINVAL;
 303
 304         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 305                 netif_device_detach(netdev);
 306                 qlcnic_napi_disable(adapter);
 307         }
 308
 309         memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
 310         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 311         qlcnic_set_multi(adapter->netdev);
 312
 313         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 314                 netif_device_attach(netdev);
 315                 qlcnic_napi_enable(adapter);
 316         }
 317         return 0;
 318 }
 319
 320 static void qlcnic_vlan_rx_register(struct net_device *netdev,
 321                 struct vlan_group *grp)
 322 {
 323         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 324         adapter->vlgrp = grp;
 325 }
 326
 327 static const struct net_device_ops qlcnic_netdev_ops = {
 328         .ndo_open          = qlcnic_open,
 329         .ndo_stop          = qlcnic_close,
 330         .ndo_start_xmit    = qlcnic_xmit_frame,
 331         .ndo_get_stats     = qlcnic_get_stats,
 332         .ndo_validate_addr = eth_validate_addr,
 333         .ndo_set_multicast_list = qlcnic_set_multi,
 334         .ndo_set_mac_address    = qlcnic_set_mac,
 335         .ndo_change_mtu    = qlcnic_change_mtu,
 336         .ndo_tx_timeout    = qlcnic_tx_timeout,
 337         .ndo_vlan_rx_register = qlcnic_vlan_rx_register,
 338 #ifdef CONFIG_NET_POLL_CONTROLLER
 339         .ndo_poll_controller = qlcnic_poll_controller,
 340 #endif
 341 };
 342
 343 static struct qlcnic_nic_template qlcnic_ops = {
 344         .config_bridged_mode = qlcnic_config_bridged_mode,
 345         .config_led = qlcnic_config_led,
 346         .start_firmware = qlcnic_start_firmware
 347 };
 348
 349 static struct qlcnic_nic_template qlcnic_vf_ops = {
 350         .config_bridged_mode = qlcnicvf_config_bridged_mode,
 351         .config_led = qlcnicvf_config_led,
 352         .start_firmware = qlcnicvf_start_firmware
 353 };
 354
 355 static void
 356 qlcnic_setup_intr(struct qlcnic_adapter *adapter)
 357 {
 358         const struct qlcnic_legacy_intr_set *legacy_intrp;
 359         struct pci_dev *pdev = adapter->pdev;
 360         int err, num_msix;
 361
 362         if (adapter->rss_supported) {
 363                 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
 364                         MSIX_ENTRIES_PER_ADAPTER : 2;
 365         } else
 366                 num_msix = 1;
 367
 368         adapter->max_sds_rings = 1;
 369
 370         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 371
 372         legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
 373
 374         adapter->int_vec_bit = legacy_intrp->int_vec_bit;
 375         adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
 376                         legacy_intrp->tgt_status_reg);
 377         adapter->tgt_mask_reg = qlcnic_get_ioaddr(adapter,
 378                         legacy_intrp->tgt_mask_reg);
 379         adapter->isr_int_vec = qlcnic_get_ioaddr(adapter, ISR_INT_VECTOR);
 380
 381         adapter->crb_int_state_reg = qlcnic_get_ioaddr(adapter,
 382                         ISR_INT_STATE_REG);
 383
 384         qlcnic_set_msix_bit(pdev, 0);
 385
 386         if (adapter->msix_supported) {
 387
 388                 qlcnic_init_msix_entries(adapter, num_msix);
 389                 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
 390                 if (err == 0) {
 391                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 392                         qlcnic_set_msix_bit(pdev, 1);
 393
 394                         if (adapter->rss_supported)
 395                                 adapter->max_sds_rings = num_msix;
 396
 397                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 398                         return;
 399                 }
 400
 401                 if (err > 0)
 402                         pci_disable_msix(pdev);
 403
 404                 /* fall through for msi */
 405         }
 406
 407         if (use_msi && !pci_enable_msi(pdev)) {
 408                 adapter->flags |= QLCNIC_MSI_ENABLED;
 409                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
 410                                 msi_tgt_status[adapter->ahw.pci_func]);
 411                 dev_info(&pdev->dev, "using msi interrupts\n");
 412                 adapter->msix_entries[0].vector = pdev->irq;
 413                 return;
 414         }
 415
 416         dev_info(&pdev->dev, "using legacy interrupts\n");
 417         adapter->msix_entries[0].vector = pdev->irq;
 418 }
 419
 420 static void
 421 qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 422 {
 423         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 424                 pci_disable_msix(adapter->pdev);
 425         if (adapter->flags & QLCNIC_MSI_ENABLED)
 426                 pci_disable_msi(adapter->pdev);
 427 }
 428
 429 static void
 430 qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter)
 431 {
 432         if (adapter->ahw.pci_base0 != NULL)
 433                 iounmap(adapter->ahw.pci_base0);
 434 }
 435
 436 static int
 437 qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 438 {
 439         struct qlcnic_pci_info *pci_info;
 440         int i, ret = 0;
 441         u8 pfn;
 442
 443         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 444         if (!pci_info)
 445                 return -ENOMEM;
 446
 447         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
 448                                 QLCNIC_MAX_PCI_FUNC, GFP_KERNEL);
 449         if (!adapter->npars) {
 450                 ret = -ENOMEM;
 451                 goto err_pci_info;
 452         }
 453
 454         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
 455                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
 456         if (!adapter->eswitch) {
 457                 ret = -ENOMEM;
 458                 goto err_npars;
 459         }
 460
 461         ret = qlcnic_get_pci_info(adapter, pci_info);
 462         if (ret)
 463                 goto err_eswitch;
 464
 465         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 466                 pfn = pci_info[i].id;
 467                 if (pfn > QLCNIC_MAX_PCI_FUNC)
 468                         return QL_STATUS_INVALID_PARAM;
 469                 adapter->npars[pfn].active = (u8)pci_info[i].active;
 470                 adapter->npars[pfn].type = (u8)pci_info[i].type;
 471                 adapter->npars[pfn].phy_port = (u8)pci_info[i].default_port;
 472                 adapter->npars[pfn].min_bw = pci_info[i].tx_min_bw;
 473                 adapter->npars[pfn].max_bw = pci_info[i].tx_max_bw;
 474         }
 475
 476         for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
 477                 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
 478
 479         kfree(pci_info);
 480         return 0;
 481
 482 err_eswitch:
 483         kfree(adapter->eswitch);
 484         adapter->eswitch = NULL;
 485 err_npars:
 486         kfree(adapter->npars);
 487         adapter->npars = NULL;
 488 err_pci_info:
 489         kfree(pci_info);
 490
 491         return ret;
 492 }
 493
 494 static int
 495 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
 496 {
 497         u8 id;
 498         u32 ref_count;
 499         int i, ret = 1;
 500         u32 data = QLCNIC_MGMT_FUNC;
 501         void __iomem *priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE;
 502
 503         /* If other drivers are not in use set their privilege level */
 504         ref_count = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
 505         ret = qlcnic_api_lock(adapter);
 506         if (ret)
 507                 goto err_lock;
 508
 509         if (qlcnic_config_npars) {
 510                 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 511                         id = i;
 512                         if (adapter->npars[i].type != QLCNIC_TYPE_NIC ||
 513                                 id == adapter->ahw.pci_func)
 514                                 continue;
 515                         data |= (qlcnic_config_npars &
 516                                         QLC_DEV_SET_DRV(0xf, id));
 517                 }
 518         } else {
 519                 data = readl(priv_op);
 520                 data = (data & ~QLC_DEV_SET_DRV(0xf, adapter->ahw.pci_func)) |
 521                         (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
 522                         adapter->ahw.pci_func));
 523         }
 524         writel(data, priv_op);
 525         qlcnic_api_unlock(adapter);
 526 err_lock:
 527         return ret;
 528 }
 529
 530 static void
 531 qlcnic_check_vf(struct qlcnic_adapter *adapter)
 532 {
 533         void __iomem *msix_base_addr;
 534         void __iomem *priv_op;
 535         u32 func;
 536         u32 msix_base;
 537         u32 op_mode, priv_level;
 538
 539         /* Determine FW API version */
 540         adapter->fw_hal_version = readl(adapter->ahw.pci_base0 + QLCNIC_FW_API);
 541
 542         /* Find PCI function number */
 543         pci_read_config_dword(adapter->pdev, QLCNIC_MSIX_TABLE_OFFSET, &func);
 544         msix_base_addr = adapter->ahw.pci_base0 + QLCNIC_MSIX_BASE;
 545         msix_base = readl(msix_base_addr);
 546         func = (func - msix_base)/QLCNIC_MSIX_TBL_PGSIZE;
 547         adapter->ahw.pci_func = func;
 548
 549         /* Determine function privilege level */
 550         priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE;
 551         op_mode = readl(priv_op);
 552         if (op_mode == QLC_DEV_DRV_DEFAULT)
 553                 priv_level = QLCNIC_MGMT_FUNC;
 554         else
 555                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw.pci_func);
 556
 557         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
 558                 adapter->op_mode = QLCNIC_NON_PRIV_FUNC;
 559                 dev_info(&adapter->pdev->dev,
 560                         "HAL Version: %d Non Privileged function\n",
 561                         adapter->fw_hal_version);
 562                 adapter->nic_ops = &qlcnic_vf_ops;
 563         } else
 564                 adapter->nic_ops = &qlcnic_ops;
 565 }
 566
 567 static int
 568 qlcnic_setup_pci_map(struct qlcnic_adapter *adapter)
 569 {
 570         void __iomem *mem_ptr0 = NULL;
 571         resource_size_t mem_base;
 572         unsigned long mem_len, pci_len0 = 0;
 573
 574         struct pci_dev *pdev = adapter->pdev;
 575
 576         /* remap phys address */
 577         mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
 578         mem_len = pci_resource_len(pdev, 0);
 579
 580         if (mem_len == QLCNIC_PCI_2MB_SIZE) {
 581
 582                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
 583                 if (mem_ptr0 == NULL) {
 584                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
 585                         return -EIO;
 586                 }
 587                 pci_len0 = mem_len;
 588         } else {
 589                 return -EIO;
 590         }
 591
 592         dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
 593
 594         adapter->ahw.pci_base0 = mem_ptr0;
 595         adapter->ahw.pci_len0 = pci_len0;
 596
 597         qlcnic_check_vf(adapter);
 598
 599         adapter->ahw.ocm_win_crb = qlcnic_get_ioaddr(adapter,
 600                 QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(adapter->ahw.pci_func)));
 601
 602         return 0;
 603 }
 604
 605 static void get_brd_name(struct qlcnic_adapter *adapter, char *name)
 606 {
 607         struct pci_dev *pdev = adapter->pdev;
 608         int i, found = 0;
 609
 610         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
 611                 if (qlcnic_boards[i].vendor == pdev->vendor &&
 612                         qlcnic_boards[i].device == pdev->device &&
 613                         qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
 614                         qlcnic_boards[i].sub_device == pdev->subsystem_device) {
 615                                 sprintf(name, "%pM: %s" ,
 616                                         adapter->mac_addr,
 617                                         qlcnic_boards[i].short_name);
 618                                 found = 1;
 619                                 break;
 620                 }
 621
 622         }
 623
 624         if (!found)
 625                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
 626 }
 627
 628 static void
 629 qlcnic_check_options(struct qlcnic_adapter *adapter)
 630 {
 631         u32 fw_major, fw_minor, fw_build;
 632         struct pci_dev *pdev = adapter->pdev;
 633
 634         fw_major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
 635         fw_minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
 636         fw_build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
 637
 638         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
 639
 640         dev_info(&pdev->dev, "firmware v%d.%d.%d\n",
 641                         fw_major, fw_minor, fw_build);
 642         if (adapter->ahw.port_type == QLCNIC_XGBE) {
 643                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 644                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
 645                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
 646                 } else {
 647                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
 648                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
 649                 }
 650
 651                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 652                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 653
 654         } else if (adapter->ahw.port_type == QLCNIC_GBE) {
 655                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
 656                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 657                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 658                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
 659         }
 660
 661         adapter->msix_supported = !!use_msi_x;
 662         adapter->rss_supported = !!use_msi_x;
 663
 664         adapter->num_txd = MAX_CMD_DESCRIPTORS;
 665
 666         adapter->max_rds_rings = MAX_RDS_RINGS;
 667 }
 668
 669 static int
 670 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
 671 {
 672         int err;
 673         struct qlcnic_info nic_info;
 674
 675         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw.pci_func);
 676         if (err)
 677                 return err;
 678
 679         adapter->physical_port = (u8)nic_info.phys_port;
 680         adapter->switch_mode = nic_info.switch_mode;
 681         adapter->max_tx_ques = nic_info.max_tx_ques;
 682         adapter->max_rx_ques = nic_info.max_rx_ques;
 683         adapter->capabilities = nic_info.capabilities;
 684         adapter->max_mac_filters = nic_info.max_mac_filters;
 685         adapter->max_mtu = nic_info.max_mtu;
 686
 687         if (adapter->capabilities & BIT_6)
 688                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
 689         else
 690                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
 691
 692         return err;
 693 }
 694
 695 static void
 696 qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
 697                 struct qlcnic_esw_func_cfg *esw_cfg)
 698 {
 699         if (esw_cfg->discard_tagged)
 700                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
 701         else
 702                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
 703
 704         if (esw_cfg->vlan_id)
 705                 adapter->pvid = esw_cfg->vlan_id;
 706         else
 707                 adapter->pvid = 0;
 708 }
 709
 710 static void
 711 qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
 712                 struct qlcnic_esw_func_cfg *esw_cfg)
 713 {
 714         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
 715                                 QLCNIC_PROMISC_DISABLED);
 716
 717         if (esw_cfg->mac_anti_spoof)
 718                 adapter->flags |= QLCNIC_MACSPOOF;
 719
 720         if (!esw_cfg->mac_override)
 721                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
 722
 723         if (!esw_cfg->promisc_mode)
 724                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
 725
 726         qlcnic_set_netdev_features(adapter, esw_cfg);
 727 }
 728
 729 static int
 730 qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
 731 {
 732         struct qlcnic_esw_func_cfg esw_cfg;
 733
 734         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
 735                 return 0;
 736
 737         esw_cfg.pci_func = adapter->ahw.pci_func;
 738         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
 739                         return -EIO;
 740         qlcnic_set_vlan_config(adapter, &esw_cfg);
 741         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
 742
 743         return 0;
 744 }
 745
 746 static void
 747 qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
 748                 struct qlcnic_esw_func_cfg *esw_cfg)
 749 {
 750         struct net_device *netdev = adapter->netdev;
 751         unsigned long features, vlan_features;
 752
 753         features = (NETIF_F_SG | NETIF_F_IP_CSUM |
 754                         NETIF_F_IPV6_CSUM | NETIF_F_GRO);
 755         vlan_features = (NETIF_F_SG | NETIF_F_IP_CSUM |
 756                         NETIF_F_IPV6_CSUM);
 757
 758         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO) {
 759                 features |= (NETIF_F_TSO | NETIF_F_TSO6);
 760                 vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
 761         }
 762         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
 763                 features |= NETIF_F_LRO;
 764
 765         if (esw_cfg->offload_flags & BIT_0) {
 766                 netdev->features |= features;
 767                 adapter->rx_csum = 1;
 768                 if (!(esw_cfg->offload_flags & BIT_1))
 769                         netdev->features &= ~NETIF_F_TSO;
 770                 if (!(esw_cfg->offload_flags & BIT_2))
 771                         netdev->features &= ~NETIF_F_TSO6;
 772         } else {
 773                 netdev->features &= ~features;
 774                 adapter->rx_csum = 0;
 775         }
 776
 777         netdev->vlan_features = (features & vlan_features);
 778 }
 779
 780 static int
 781 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
 782 {
 783         void __iomem *priv_op;
 784         u32 op_mode, priv_level;
 785         int err = 0;
 786
 787         err = qlcnic_initialize_nic(adapter);
 788         if (err)
 789                 return err;
 790
 791         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
 792                 return 0;
 793
 794         priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE;
 795         op_mode = readl(priv_op);
 796         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw.pci_func);
 797
 798         if (op_mode == QLC_DEV_DRV_DEFAULT)
 799                 priv_level = QLCNIC_MGMT_FUNC;
 800         else
 801                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw.pci_func);
 802
 803         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 804                 if (priv_level == QLCNIC_MGMT_FUNC) {
 805                         adapter->op_mode = QLCNIC_MGMT_FUNC;
 806                         err = qlcnic_init_pci_info(adapter);
 807                         if (err)
 808                                 return err;
 809                         /* Set privilege level for other functions */
 810                         qlcnic_set_function_modes(adapter);
 811                         dev_info(&adapter->pdev->dev,
 812                                 "HAL Version: %d, Management function\n",
 813                                 adapter->fw_hal_version);
 814                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
 815                         adapter->op_mode = QLCNIC_PRIV_FUNC;
 816                         dev_info(&adapter->pdev->dev,
 817                                 "HAL Version: %d, Privileged function\n",
 818                                 adapter->fw_hal_version);
 819                 }
 820         }
 821
 822         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
 823
 824         return err;
 825 }
 826
 827 static int
 828 qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
 829 {
 830         struct qlcnic_esw_func_cfg esw_cfg;
 831         struct qlcnic_npar_info *npar;
 832         u8 i;
 833
 834         if (adapter->need_fw_reset)
 835                 return 0;
 836
 837         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 838                 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
 839                         continue;
 840                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
 841                 esw_cfg.pci_func = i;
 842                 esw_cfg.offload_flags = BIT_0;
 843                 esw_cfg.mac_override = BIT_0;
 844                 esw_cfg.promisc_mode = BIT_0;
 845                 if (adapter->capabilities  & QLCNIC_FW_CAPABILITY_TSO)
 846                         esw_cfg.offload_flags |= (BIT_1 | BIT_2);
 847                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
 848                         return -EIO;
 849                 npar = &adapter->npars[i];
 850                 npar->pvid = esw_cfg.vlan_id;
 851                 npar->mac_override = esw_cfg.mac_override;
 852                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
 853                 npar->discard_tagged = esw_cfg.discard_tagged;
 854                 npar->promisc_mode = esw_cfg.promisc_mode;
 855                 npar->offload_flags = esw_cfg.offload_flags;
 856         }
 857
 858         return 0;
 859 }
 860
 861 static int
 862 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
 863                         struct qlcnic_npar_info *npar, int pci_func)
 864 {
 865         struct qlcnic_esw_func_cfg esw_cfg;
 866         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
 867         esw_cfg.pci_func = pci_func;
 868         esw_cfg.vlan_id = npar->pvid;
 869         esw_cfg.mac_override = npar->mac_override;
 870         esw_cfg.discard_tagged = npar->discard_tagged;
 871         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
 872         esw_cfg.offload_flags = npar->offload_flags;
 873         esw_cfg.promisc_mode = npar->promisc_mode;
 874         if (qlcnic_config_switch_port(adapter, &esw_cfg))
 875                 return -EIO;
 876
 877         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
 878         if (qlcnic_config_switch_port(adapter, &esw_cfg))
 879                 return -EIO;
 880
 881         return 0;
 882 }
 883
 884 static int
 885 qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
 886 {
 887         int i, err;
 888         struct qlcnic_npar_info *npar;
 889         struct qlcnic_info nic_info;
 890
 891         if (!adapter->need_fw_reset)
 892                 return 0;
 893
 894         /* Set the NPAR config data after FW reset */
 895         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 896                 npar = &adapter->npars[i];
 897                 if (npar->type != QLCNIC_TYPE_NIC)
 898                         continue;
 899                 err = qlcnic_get_nic_info(adapter, &nic_info, i);
 900                 if (err)
 901                         return err;
 902                 nic_info.min_tx_bw = npar->min_bw;
 903                 nic_info.max_tx_bw = npar->max_bw;
 904                 err = qlcnic_set_nic_info(adapter, &nic_info);
 905                 if (err)
 906                         return err;
 907
 908                 if (npar->enable_pm) {
 909                         err = qlcnic_config_port_mirroring(adapter,
 910                                                         npar->dest_npar, 1, i);
 911                         if (err)
 912                                 return err;
 913                 }
 914                 err = qlcnic_reset_eswitch_config(adapter, npar, i);
 915                 if (err)
 916                         return err;
 917         }
 918         return 0;
 919 }
 920
 921 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
 922 {
 923         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
 924         u32 npar_state;
 925
 926         if (adapter->op_mode == QLCNIC_MGMT_FUNC)
 927                 return 0;
 928
 929         npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
 930         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
 931                 msleep(1000);
 932                 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
 933         }
 934         if (!npar_opt_timeo) {
 935                 dev_err(&adapter->pdev->dev,
 936                         "Waiting for NPAR state to opertional timeout\n");
 937                 return -EIO;
 938         }
 939         return 0;
 940 }
 941
 942 static int
 943 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
 944 {
 945         int err;
 946
 947         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
 948                     adapter->op_mode != QLCNIC_MGMT_FUNC)
 949                 return 0;
 950
 951         err = qlcnic_set_default_offload_settings(adapter);
 952         if (err)
 953                 return err;
 954
 955         err = qlcnic_reset_npar_config(adapter);
 956         if (err)
 957                 return err;
 958
 959         qlcnic_dev_set_npar_ready(adapter);
 960
 961         return err;
 962 }
 963
 964 static int
 965 qlcnic_start_firmware(struct qlcnic_adapter *adapter)
 966 {
 967         int err;
 968
 969         err = qlcnic_can_start_firmware(adapter);
 970         if (err < 0)
 971                 return err;
 972         else if (!err)
 973                 goto check_fw_status;
 974
 975         if (load_fw_file)
 976                 qlcnic_request_firmware(adapter);
 977         else {
 978                 err = qlcnic_check_flash_fw_ver(adapter);
 979                 if (err)
 980                         goto err_out;
 981
 982                 adapter->fw_type = QLCNIC_FLASH_ROMIMAGE;
 983         }
 984
 985         err = qlcnic_need_fw_reset(adapter);
 986         if (err == 0)
 987                 goto check_fw_status;
 988
 989         err = qlcnic_pinit_from_rom(adapter);
 990         if (err)
 991                 goto err_out;
 992
 993         err = qlcnic_load_firmware(adapter);
 994         if (err)
 995                 goto err_out;
 996
 997         qlcnic_release_firmware(adapter);
 998         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
 999
1000 check_fw_status:
1001         err = qlcnic_check_fw_status(adapter);
1002         if (err)
1003                 goto err_out;
1004
1005         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1006         qlcnic_idc_debug_info(adapter, 1);
1007
1008         err = qlcnic_check_eswitch_mode(adapter);
1009         if (err) {
1010                 dev_err(&adapter->pdev->dev,
1011                         "Memory allocation failed for eswitch\n");
1012                 goto err_out;
1013         }
1014         err = qlcnic_set_mgmt_operations(adapter);
1015         if (err)
1016                 goto err_out;
1017
1018         qlcnic_check_options(adapter);
1019         adapter->need_fw_reset = 0;
1020
1021         qlcnic_release_firmware(adapter);
1022         return 0;
1023
1024 err_out:
1025         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1026         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1027
1028         qlcnic_release_firmware(adapter);
1029         return err;
1030 }
1031
1032 static int
1033 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1034 {
1035         irq_handler_t handler;
1036         struct qlcnic_host_sds_ring *sds_ring;
1037         int err, ring;
1038
1039         unsigned long flags = 0;
1040         struct net_device *netdev = adapter->netdev;
1041         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1042
1043         if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1044                 handler = qlcnic_tmp_intr;
1045                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1046                         flags |= IRQF_SHARED;
1047
1048         } else {
1049                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1050                         handler = qlcnic_msix_intr;
1051                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1052                         handler = qlcnic_msi_intr;
1053                 else {
1054                         flags |= IRQF_SHARED;
1055                         handler = qlcnic_intr;
1056                 }
1057         }
1058         adapter->irq = netdev->irq;
1059
1060         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1061                 sds_ring = &recv_ctx->sds_rings[ring];
1062                 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
1063                 err = request_irq(sds_ring->irq, handler,
1064                                   flags, sds_ring->name, sds_ring);
1065                 if (err)
1066                         return err;
1067         }
1068
1069         return 0;
1070 }
1071
1072 static void
1073 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1074 {
1075         int ring;
1076         struct qlcnic_host_sds_ring *sds_ring;
1077
1078         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1079
1080         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1081                 sds_ring = &recv_ctx->sds_rings[ring];
1082                 free_irq(sds_ring->irq, sds_ring);
1083         }
1084 }
1085
1086 static void
1087 qlcnic_init_coalesce_defaults(struct qlcnic_adapter *adapter)
1088 {
1089         adapter->coal.flags = QLCNIC_INTR_DEFAULT;
1090         adapter->coal.normal.data.rx_time_us =
1091                 QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
1092         adapter->coal.normal.data.rx_packets =
1093                 QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
1094         adapter->coal.normal.data.tx_time_us =
1095                 QLCNIC_DEFAULT_INTR_COALESCE_TX_TIME_US;
1096         adapter->coal.normal.data.tx_packets =
1097                 QLCNIC_DEFAULT_INTR_COALESCE_TX_PACKETS;
1098 }
1099
1100 static int
1101 __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1102 {
1103         int ring;
1104         struct qlcnic_host_rds_ring *rds_ring;
1105
1106         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1107                 return -EIO;
1108
1109         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1110                 return 0;
1111         if (qlcnic_set_eswitch_port_config(adapter))
1112                 return -EIO;
1113
1114         if (qlcnic_fw_create_ctx(adapter))
1115                 return -EIO;
1116
1117         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1118                 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1119                 qlcnic_post_rx_buffers(adapter, ring, rds_ring);
1120         }
1121
1122         qlcnic_set_multi(netdev);
1123         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1124
1125         adapter->ahw.linkup = 0;
1126
1127         if (adapter->max_sds_rings > 1)
1128                 qlcnic_config_rss(adapter, 1);
1129
1130         qlcnic_config_intr_coalesce(adapter);
1131
1132         if (netdev->features & NETIF_F_LRO)
1133                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1134
1135         qlcnic_napi_enable(adapter);
1136
1137         qlcnic_linkevent_request(adapter, 1);
1138
1139         adapter->reset_context = 0;
1140         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1141         return 0;
1142 }
1143
1144 /* Usage: During resume and firmware recovery module.*/
1145
1146 static int
1147 qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1148 {
1149         int err = 0;
1150
1151         rtnl_lock();
1152         if (netif_running(netdev))
1153                 err = __qlcnic_up(adapter, netdev);
1154         rtnl_unlock();
1155
1156         return err;
1157 }
1158
1159 static void
1160 __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1161 {
1162         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1163                 return;
1164
1165         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1166                 return;
1167
1168         smp_mb();
1169         spin_lock(&adapter->tx_clean_lock);
1170         netif_carrier_off(netdev);
1171         netif_tx_disable(netdev);
1172
1173         qlcnic_free_mac_list(adapter);
1174
1175         if (adapter->fhash.fnum)
1176                 qlcnic_delete_lb_filters(adapter);
1177
1178         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1179
1180         qlcnic_napi_disable(adapter);
1181
1182         qlcnic_fw_destroy_ctx(adapter);
1183
1184         qlcnic_reset_rx_buffers_list(adapter);
1185         qlcnic_release_tx_buffers(adapter);
1186         spin_unlock(&adapter->tx_clean_lock);
1187 }
1188
1189 /* Usage: During suspend and firmware recovery module */
1190
1191 static void
1192 qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1193 {
1194         rtnl_lock();
1195         if (netif_running(netdev))
1196                 __qlcnic_down(adapter, netdev);
1197         rtnl_unlock();
1198
1199 }
1200
1201 static int
1202 qlcnic_attach(struct qlcnic_adapter *adapter)
1203 {
1204         struct net_device *netdev = adapter->netdev;
1205         struct pci_dev *pdev = adapter->pdev;
1206         int err;
1207
1208         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1209                 return 0;
1210
1211         err = qlcnic_napi_add(adapter, netdev);
1212         if (err)
1213                 return err;
1214
1215         err = qlcnic_alloc_sw_resources(adapter);
1216         if (err) {
1217                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1218                 goto err_out_napi_del;
1219         }
1220
1221         err = qlcnic_alloc_hw_resources(adapter);
1222         if (err) {
1223                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1224                 goto err_out_free_sw;
1225         }
1226
1227         err = qlcnic_request_irq(adapter);
1228         if (err) {
1229                 dev_err(&pdev->dev, "failed to setup interrupt\n");
1230                 goto err_out_free_hw;
1231         }
1232
1233         qlcnic_init_coalesce_defaults(adapter);
1234
1235         qlcnic_create_sysfs_entries(adapter);
1236
1237         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1238         return 0;
1239
1240 err_out_free_hw:
1241         qlcnic_free_hw_resources(adapter);
1242 err_out_free_sw:
1243         qlcnic_free_sw_resources(adapter);
1244 err_out_napi_del:
1245         qlcnic_napi_del(adapter);
1246         return err;
1247 }
1248
1249 static void
1250 qlcnic_detach(struct qlcnic_adapter *adapter)
1251 {
1252         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1253                 return;
1254
1255         qlcnic_remove_sysfs_entries(adapter);
1256
1257         qlcnic_free_hw_resources(adapter);
1258         qlcnic_release_rx_buffers(adapter);
1259         qlcnic_free_irq(adapter);
1260         qlcnic_napi_del(adapter);
1261         qlcnic_free_sw_resources(adapter);
1262
1263         adapter->is_up = 0;
1264 }
1265
1266 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1267 {
1268         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1269         struct qlcnic_host_sds_ring *sds_ring;
1270         int ring;
1271
1272         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1273         if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1274                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1275                         sds_ring = &adapter->recv_ctx.sds_rings[ring];
1276                         qlcnic_disable_int(sds_ring);
1277                 }
1278         }
1279
1280         qlcnic_fw_destroy_ctx(adapter);
1281
1282         qlcnic_detach(adapter);
1283
1284         adapter->diag_test = 0;
1285         adapter->max_sds_rings = max_sds_rings;
1286
1287         if (qlcnic_attach(adapter))
1288                 goto out;
1289
1290         if (netif_running(netdev))
1291                 __qlcnic_up(adapter, netdev);
1292 out:
1293         netif_device_attach(netdev);
1294 }
1295
1296 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1297 {
1298         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1299         struct qlcnic_host_sds_ring *sds_ring;
1300         struct qlcnic_host_rds_ring *rds_ring;
1301         int ring;
1302         int ret;
1303
1304         netif_device_detach(netdev);
1305
1306         if (netif_running(netdev))
1307                 __qlcnic_down(adapter, netdev);
1308
1309         qlcnic_detach(adapter);
1310
1311         adapter->max_sds_rings = 1;
1312         adapter->diag_test = test;
1313
1314         ret = qlcnic_attach(adapter);
1315         if (ret) {
1316                 netif_device_attach(netdev);
1317                 return ret;
1318         }
1319
1320         ret = qlcnic_fw_create_ctx(adapter);
1321         if (ret) {
1322                 qlcnic_detach(adapter);
1323                 netif_device_attach(netdev);
1324                 return ret;
1325         }
1326
1327         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1328                 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1329                 qlcnic_post_rx_buffers(adapter, ring, rds_ring);
1330         }
1331
1332         if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1333                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1334                         sds_ring = &adapter->recv_ctx.sds_rings[ring];
1335                         qlcnic_enable_int(sds_ring);
1336                 }
1337         }
1338         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1339
1340         return 0;
1341 }
1342
1343 /* Reset context in hardware only */
1344 static int
1345 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1346 {
1347         struct net_device *netdev = adapter->netdev;
1348
1349         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1350                 return -EBUSY;
1351
1352         netif_device_detach(netdev);
1353
1354         qlcnic_down(adapter, netdev);
1355
1356         qlcnic_up(adapter, netdev);
1357
1358         netif_device_attach(netdev);
1359
1360         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1361         return 0;
1362 }
1363
1364 int
1365 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1366 {
1367         int err = 0;
1368         struct net_device *netdev = adapter->netdev;
1369
1370         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1371                 return -EBUSY;
1372
1373         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1374
1375                 netif_device_detach(netdev);
1376
1377                 if (netif_running(netdev))
1378                         __qlcnic_down(adapter, netdev);
1379
1380                 qlcnic_detach(adapter);
1381
1382                 if (netif_running(netdev)) {
1383                         err = qlcnic_attach(adapter);
1384                         if (!err)
1385                                 __qlcnic_up(adapter, netdev);
1386                 }
1387
1388                 netif_device_attach(netdev);
1389         }
1390
1391         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1392         return err;
1393 }
1394
1395 static int
1396 qlcnic_setup_netdev(struct qlcnic_adapter *adapter,
1397                 struct net_device *netdev, u8 pci_using_dac)
1398 {
1399         int err;
1400         struct pci_dev *pdev = adapter->pdev;
1401
1402         adapter->rx_csum = 1;
1403         adapter->mc_enabled = 0;
1404         adapter->max_mc_count = 38;
1405
1406         netdev->netdev_ops         = &qlcnic_netdev_ops;
1407         netdev->watchdog_timeo     = 5*HZ;
1408
1409         qlcnic_change_mtu(netdev, netdev->mtu);
1410
1411         SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1412
1413         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1414                 NETIF_F_IPV6_CSUM | NETIF_F_GRO | NETIF_F_HW_VLAN_RX);
1415         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1416                 NETIF_F_IPV6_CSUM);
1417
1418         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO) {
1419                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
1420                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
1421         }
1422
1423         if (pci_using_dac) {
1424                 netdev->features |= NETIF_F_HIGHDMA;
1425                 netdev->vlan_features |= NETIF_F_HIGHDMA;
1426         }
1427
1428         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX)
1429                 netdev->features |= (NETIF_F_HW_VLAN_TX);
1430
1431         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1432                 netdev->features |= NETIF_F_LRO;
1433         netdev->irq = adapter->msix_entries[0].vector;
1434
1435         netif_carrier_off(netdev);
1436
1437         err = register_netdev(netdev);
1438         if (err) {
1439                 dev_err(&pdev->dev, "failed to register net device\n");
1440                 return err;
1441         }
1442
1443         return 0;
1444 }
1445
1446 static int qlcnic_set_dma_mask(struct pci_dev *pdev, u8 *pci_using_dac)
1447 {
1448         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1449                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1450                 *pci_using_dac = 1;
1451         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1452                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1453                 *pci_using_dac = 0;
1454         else {
1455                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1456                 return -EIO;
1457         }
1458
1459         return 0;
1460 }
1461
1462 static int __devinit
1463 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1464 {
1465         struct net_device *netdev = NULL;
1466         struct qlcnic_adapter *adapter = NULL;
1467         int err;
1468         uint8_t revision_id;
1469         uint8_t pci_using_dac;
1470         char brd_name[QLCNIC_MAX_BOARD_NAME_LEN];
1471         u32 val;
1472
1473         err = pci_enable_device(pdev);
1474         if (err)
1475                 return err;
1476
1477         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1478                 err = -ENODEV;
1479                 goto err_out_disable_pdev;
1480         }
1481
1482         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
1483         if (err)
1484                 goto err_out_disable_pdev;
1485
1486         err = pci_request_regions(pdev, qlcnic_driver_name);
1487         if (err)
1488                 goto err_out_disable_pdev;
1489
1490         pci_set_master(pdev);
1491         pci_enable_pcie_error_reporting(pdev);
1492
1493         netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1494         if (!netdev) {
1495                 dev_err(&pdev->dev, "failed to allocate net_device\n");
1496                 err = -ENOMEM;
1497                 goto err_out_free_res;
1498         }
1499
1500         SET_NETDEV_DEV(netdev, &pdev->dev);
1501
1502         adapter = netdev_priv(netdev);
1503         adapter->netdev  = netdev;
1504         adapter->pdev    = pdev;
1505         adapter->dev_rst_time = jiffies;
1506
1507         revision_id = pdev->revision;
1508         adapter->ahw.revision_id = revision_id;
1509
1510         rwlock_init(&adapter->ahw.crb_lock);
1511         mutex_init(&adapter->ahw.mem_lock);
1512
1513         spin_lock_init(&adapter->tx_clean_lock);
1514         INIT_LIST_HEAD(&adapter->mac_list);
1515
1516         err = qlcnic_setup_pci_map(adapter);
1517         if (err)
1518                 goto err_out_free_netdev;
1519
1520         /* This will be reset for mezz cards  */
1521         adapter->portnum = adapter->ahw.pci_func;
1522
1523         err = qlcnic_get_board_info(adapter);
1524         if (err) {
1525                 dev_err(&pdev->dev, "Error getting board config info.\n");
1526                 goto err_out_iounmap;
1527         }
1528
1529         err = qlcnic_setup_idc_param(adapter);
1530         if (err)
1531                 goto err_out_iounmap;
1532
1533         val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
1534         if (QLC_DEV_CHECK_ACTIVE(val, adapter->portnum))
1535                 adapter->flags |= QLCNIC_NEED_FLR;
1536
1537         err = adapter->nic_ops->start_firmware(adapter);
1538         if (err) {
1539                 dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
1540                 goto err_out_decr_ref;
1541         }
1542
1543         if (qlcnic_read_mac_addr(adapter))
1544                 dev_warn(&pdev->dev, "failed to read mac addr\n");
1545
1546         if (adapter->portnum == 0) {
1547                 get_brd_name(adapter, brd_name);
1548
1549                 pr_info("%s: %s Board Chip rev 0x%x\n",
1550                                 module_name(THIS_MODULE),
1551                                 brd_name, adapter->ahw.revision_id);
1552         }
1553
1554         qlcnic_clear_stats(adapter);
1555
1556         qlcnic_setup_intr(adapter);
1557
1558         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
1559         if (err)
1560                 goto err_out_disable_msi;
1561
1562         pci_set_drvdata(pdev, adapter);
1563
1564         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1565
1566         switch (adapter->ahw.port_type) {
1567         case QLCNIC_GBE:
1568                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1569                                 adapter->netdev->name);
1570                 break;
1571         case QLCNIC_XGBE:
1572                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1573                                 adapter->netdev->name);
1574                 break;
1575         }
1576
1577         qlcnic_alloc_lb_filters_mem(adapter);
1578         qlcnic_create_diag_entries(adapter);
1579
1580         return 0;
1581
1582 err_out_disable_msi:
1583         qlcnic_teardown_intr(adapter);
1584
1585 err_out_decr_ref:
1586         qlcnic_clr_all_drv_state(adapter, 0);
1587
1588 err_out_iounmap:
1589         qlcnic_cleanup_pci_map(adapter);
1590
1591 err_out_free_netdev:
1592         free_netdev(netdev);
1593
1594 err_out_free_res:
1595         pci_release_regions(pdev);
1596
1597 err_out_disable_pdev:
1598         pci_set_drvdata(pdev, NULL);
1599         pci_disable_device(pdev);
1600         return err;
1601 }
1602
1603 static void __devexit qlcnic_remove(struct pci_dev *pdev)
1604 {
1605         struct qlcnic_adapter *adapter;
1606         struct net_device *netdev;
1607
1608         adapter = pci_get_drvdata(pdev);
1609         if (adapter == NULL)
1610                 return;
1611
1612         netdev = adapter->netdev;
1613
1614         qlcnic_cancel_fw_work(adapter);
1615
1616         unregister_netdev(netdev);
1617
1618         qlcnic_detach(adapter);
1619
1620         if (adapter->npars != NULL)
1621                 kfree(adapter->npars);
1622         if (adapter->eswitch != NULL)
1623                 kfree(adapter->eswitch);
1624
1625         qlcnic_clr_all_drv_state(adapter, 0);
1626
1627         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1628
1629         qlcnic_free_lb_filters_mem(adapter);
1630
1631         qlcnic_teardown_intr(adapter);
1632
1633         qlcnic_remove_diag_entries(adapter);
1634
1635         qlcnic_cleanup_pci_map(adapter);
1636
1637         qlcnic_release_firmware(adapter);
1638
1639         pci_disable_pcie_error_reporting(pdev);
1640         pci_release_regions(pdev);
1641         pci_disable_device(pdev);
1642         pci_set_drvdata(pdev, NULL);
1643
1644         free_netdev(netdev);
1645 }
1646 static int __qlcnic_shutdown(struct pci_dev *pdev)
1647 {
1648         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1649         struct net_device *netdev = adapter->netdev;
1650         int retval;
1651
1652         netif_device_detach(netdev);
1653
1654         qlcnic_cancel_fw_work(adapter);
1655
1656         if (netif_running(netdev))
1657                 qlcnic_down(adapter, netdev);
1658
1659         qlcnic_clr_all_drv_state(adapter, 0);
1660
1661         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1662
1663         retval = pci_save_state(pdev);
1664         if (retval)
1665                 return retval;
1666
1667         if (qlcnic_wol_supported(adapter)) {
1668                 pci_enable_wake(pdev, PCI_D3cold, 1);
1669                 pci_enable_wake(pdev, PCI_D3hot, 1);
1670         }
1671
1672         return 0;
1673 }
1674
1675 static void qlcnic_shutdown(struct pci_dev *pdev)
1676 {
1677         if (__qlcnic_shutdown(pdev))
1678                 return;
1679
1680         pci_disable_device(pdev);
1681 }
1682
1683 #ifdef CONFIG_PM
1684 static int
1685 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
1686 {
1687         int retval;
1688
1689         retval = __qlcnic_shutdown(pdev);
1690         if (retval)
1691                 return retval;
1692
1693         pci_set_power_state(pdev, pci_choose_state(pdev, state));
1694         return 0;
1695 }
1696
1697 static int
1698 qlcnic_resume(struct pci_dev *pdev)
1699 {
1700         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1701         struct net_device *netdev = adapter->netdev;
1702         int err;
1703
1704         err = pci_enable_device(pdev);
1705         if (err)
1706                 return err;
1707
1708         pci_set_power_state(pdev, PCI_D0);
1709         pci_set_master(pdev);
1710         pci_restore_state(pdev);
1711
1712         err = adapter->nic_ops->start_firmware(adapter);
1713         if (err) {
1714                 dev_err(&pdev->dev, "failed to start firmware\n");
1715                 return err;
1716         }
1717
1718         if (netif_running(netdev)) {
1719                 err = qlcnic_up(adapter, netdev);
1720                 if (err)
1721                         goto done;
1722
1723                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1724         }
1725 done:
1726         netif_device_attach(netdev);
1727         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1728         return 0;
1729 }
1730 #endif
1731
1732 static int qlcnic_open(struct net_device *netdev)
1733 {
1734         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1735         int err;
1736
1737         err = qlcnic_attach(adapter);
1738         if (err)
1739                 return err;
1740
1741         err = __qlcnic_up(adapter, netdev);
1742         if (err)
1743                 goto err_out;
1744
1745         netif_start_queue(netdev);
1746
1747         return 0;
1748
1749 err_out:
1750         qlcnic_detach(adapter);
1751         return err;
1752 }
1753
1754 /*
1755  * qlcnic_close - Disables a network interface entry point
1756  */
1757 static int qlcnic_close(struct net_device *netdev)
1758 {
1759         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1760
1761         __qlcnic_down(adapter, netdev);
1762         return 0;
1763 }
1764
1765 static void
1766 qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
1767 {
1768         void *head;
1769         int i;
1770
1771         if (!qlcnic_mac_learn)
1772                 return;
1773
1774         spin_lock_init(&adapter->mac_learn_lock);
1775
1776         head = kcalloc(QLCNIC_LB_MAX_FILTERS, sizeof(struct hlist_head),
1777                                                                 GFP_KERNEL);
1778         if (!head)
1779                 return;
1780
1781         adapter->fhash.fmax = QLCNIC_LB_MAX_FILTERS;
1782         adapter->fhash.fhead = (struct hlist_head *)head;
1783
1784         for (i = 0; i < adapter->fhash.fmax; i++)
1785                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
1786 }
1787
1788 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
1789 {
1790         if (adapter->fhash.fmax && adapter->fhash.fhead)
1791                 kfree(adapter->fhash.fhead);
1792
1793         adapter->fhash.fhead = NULL;
1794         adapter->fhash.fmax = 0;
1795 }
1796
1797 static void qlcnic_change_filter(struct qlcnic_adapter *adapter,
1798                 u64 uaddr, __le16 vlan_id, struct qlcnic_host_tx_ring *tx_ring)
1799 {
1800         struct cmd_desc_type0 *hwdesc;
1801         struct qlcnic_nic_req *req;
1802         struct qlcnic_mac_req *mac_req;
1803         struct qlcnic_vlan_req *vlan_req;
1804         u32 producer;
1805         u64 word;
1806
1807         producer = tx_ring->producer;
1808         hwdesc = &tx_ring->desc_head[tx_ring->producer];
1809
1810         req = (struct qlcnic_nic_req *)hwdesc;
1811         memset(req, 0, sizeof(struct qlcnic_nic_req));
1812         req->qhdr = cpu_to_le64(QLCNIC_REQUEST << 23);
1813
1814         word = QLCNIC_MAC_EVENT | ((u64)(adapter->portnum) << 16);
1815         req->req_hdr = cpu_to_le64(word);
1816
1817         mac_req = (struct qlcnic_mac_req *)&(req->words[0]);
1818         mac_req->op = vlan_id ? QLCNIC_MAC_VLAN_ADD : QLCNIC_MAC_ADD;
1819         memcpy(mac_req->mac_addr, &uaddr, ETH_ALEN);
1820
1821         vlan_req = (struct qlcnic_vlan_req *)&req->words[1];
1822         vlan_req->vlan_id = vlan_id;
1823
1824         tx_ring->producer = get_next_index(producer, tx_ring->num_desc);
1825 }
1826
1827 #define QLCNIC_MAC_HASH(MAC)\
1828         ((((MAC) & 0x70000) >> 0x10) | (((MAC) & 0x70000000000ULL) >> 0x25))
1829
1830 static void
1831 qlcnic_send_filter(struct qlcnic_adapter *adapter,
1832                 struct qlcnic_host_tx_ring *tx_ring,
1833                 struct cmd_desc_type0 *first_desc,
1834                 struct sk_buff *skb)
1835 {
1836         struct ethhdr *phdr = (struct ethhdr *)(skb->data);
1837         struct qlcnic_filter *fil, *tmp_fil;
1838         struct hlist_node *tmp_hnode, *n;
1839         struct hlist_head *head;
1840         u64 src_addr = 0;
1841         __le16 vlan_id = 0;
1842         u8 hindex;
1843
1844         if (!compare_ether_addr(phdr->h_source, adapter->mac_addr))
1845                 return;
1846
1847         if (adapter->fhash.fnum >= adapter->fhash.fmax)
1848                 return;
1849
1850         /* Only NPAR capable devices support vlan based learning*/
1851         if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
1852                 vlan_id = first_desc->vlan_TCI;
1853         memcpy(&src_addr, phdr->h_source, ETH_ALEN);
1854         hindex = QLCNIC_MAC_HASH(src_addr) & (QLCNIC_LB_MAX_FILTERS - 1);
1855         head = &(adapter->fhash.fhead[hindex]);
1856
1857         hlist_for_each_entry_safe(tmp_fil, tmp_hnode, n, head, fnode) {
1858                 if (!memcmp(tmp_fil->faddr, &src_addr, ETH_ALEN) &&
1859                             tmp_fil->vlan_id == vlan_id) {
1860
1861                         if (jiffies >
1862                             (QLCNIC_READD_AGE * HZ + tmp_fil->ftime))
1863                                 qlcnic_change_filter(adapter, src_addr, vlan_id,
1864                                                                 tx_ring);
1865                         tmp_fil->ftime = jiffies;
1866                         return;
1867                 }
1868         }
1869
1870         fil = kzalloc(sizeof(struct qlcnic_filter), GFP_ATOMIC);
1871         if (!fil)
1872                 return;
1873
1874         qlcnic_change_filter(adapter, src_addr, vlan_id, tx_ring);
1875
1876         fil->ftime = jiffies;
1877         fil->vlan_id = vlan_id;
1878         memcpy(fil->faddr, &src_addr, ETH_ALEN);
1879         spin_lock(&adapter->mac_learn_lock);
1880         hlist_add_head(&(fil->fnode), head);
1881         adapter->fhash.fnum++;
1882         spin_unlock(&adapter->mac_learn_lock);
1883 }
1884
1885 static void
1886 qlcnic_tso_check(struct net_device *netdev,
1887                 struct qlcnic_host_tx_ring *tx_ring,
1888                 struct cmd_desc_type0 *first_desc,
1889                 struct sk_buff *skb)
1890 {
1891         u8 opcode = TX_ETHER_PKT;
1892         __be16 protocol = skb->protocol;
1893         u16 flags = 0;
1894         int copied, offset, copy_len, hdr_len = 0, tso = 0;
1895         struct cmd_desc_type0 *hwdesc;
1896         struct vlan_ethhdr *vh;
1897         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1898         u32 producer = tx_ring->producer;
1899         __le16 vlan_oob = first_desc->flags_opcode &
1900                                 cpu_to_le16(FLAGS_VLAN_OOB);
1901
1902         if (*(skb->data) & BIT_0) {
1903                 flags |= BIT_0;
1904                 memcpy(&first_desc->eth_addr, skb->data, ETH_ALEN);
1905         }
1906
1907         if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1908                         skb_shinfo(skb)->gso_size > 0) {
1909
1910                 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1911
1912                 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1913                 first_desc->total_hdr_length = hdr_len;
1914                 if (vlan_oob) {
1915                         first_desc->total_hdr_length += VLAN_HLEN;
1916                         first_desc->tcp_hdr_offset = VLAN_HLEN;
1917                         first_desc->ip_hdr_offset = VLAN_HLEN;
1918                         /* Only in case of TSO on vlan device */
1919                         flags |= FLAGS_VLAN_TAGGED;
1920                 }
1921
1922                 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1923                                 TX_TCP_LSO6 : TX_TCP_LSO;
1924                 tso = 1;
1925
1926         } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1927                 u8 l4proto;
1928
1929                 if (protocol == cpu_to_be16(ETH_P_IP)) {
1930                         l4proto = ip_hdr(skb)->protocol;
1931
1932                         if (l4proto == IPPROTO_TCP)
1933                                 opcode = TX_TCP_PKT;
1934                         else if (l4proto == IPPROTO_UDP)
1935                                 opcode = TX_UDP_PKT;
1936                 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1937                         l4proto = ipv6_hdr(skb)->nexthdr;
1938
1939                         if (l4proto == IPPROTO_TCP)
1940                                 opcode = TX_TCPV6_PKT;
1941                         else if (l4proto == IPPROTO_UDP)
1942                                 opcode = TX_UDPV6_PKT;
1943                 }
1944         }
1945
1946         first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1947         first_desc->ip_hdr_offset += skb_network_offset(skb);
1948         qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
1949
1950         if (!tso)
1951                 return;
1952
1953         /* For LSO, we need to copy the MAC/IP/TCP headers into
1954          * the descriptor ring
1955          */
1956         copied = 0;
1957         offset = 2;
1958
1959         if (vlan_oob) {
1960                 /* Create a TSO vlan header template for firmware */
1961
1962                 hwdesc = &tx_ring->desc_head[producer];
1963                 tx_ring->cmd_buf_arr[producer].skb = NULL;
1964
1965                 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1966                                 hdr_len + VLAN_HLEN);
1967
1968                 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1969                 skb_copy_from_linear_data(skb, vh, 12);
1970                 vh->h_vlan_proto = htons(ETH_P_8021Q);
1971                 vh->h_vlan_TCI = (__be16)swab16((u16)first_desc->vlan_TCI);
1972
1973                 skb_copy_from_linear_data_offset(skb, 12,
1974                                 (char *)vh + 16, copy_len - 16);
1975
1976                 copied = copy_len - VLAN_HLEN;
1977                 offset = 0;
1978
1979                 producer = get_next_index(producer, tx_ring->num_desc);
1980         }
1981
1982         while (copied < hdr_len) {
1983
1984                 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1985                                 (hdr_len - copied));
1986
1987                 hwdesc = &tx_ring->desc_head[producer];
1988                 tx_ring->cmd_buf_arr[producer].skb = NULL;
1989
1990                 skb_copy_from_linear_data_offset(skb, copied,
1991                                  (char *)hwdesc + offset, copy_len);
1992
1993                 copied += copy_len;
1994                 offset = 0;
1995
1996                 producer = get_next_index(producer, tx_ring->num_desc);
1997         }
1998
1999         tx_ring->producer = producer;
2000         barrier();
2001         adapter->stats.lso_frames++;
2002 }
2003
2004 static int
2005 qlcnic_map_tx_skb(struct pci_dev *pdev,
2006                 struct sk_buff *skb, struct qlcnic_cmd_buffer *pbuf)
2007 {
2008         struct qlcnic_skb_frag *nf;
2009         struct skb_frag_struct *frag;
2010         int i, nr_frags;
2011         dma_addr_t map;
2012
2013         nr_frags = skb_shinfo(skb)->nr_frags;
2014         nf = &pbuf->frag_array[0];
2015
2016         map = pci_map_single(pdev, skb->data,
2017                         skb_headlen(skb), PCI_DMA_TODEVICE);
2018         if (pci_dma_mapping_error(pdev, map))
2019                 goto out_err;
2020
2021         nf->dma = map;
2022         nf->length = skb_headlen(skb);
2023
2024         for (i = 0; i < nr_frags; i++) {
2025                 frag = &skb_shinfo(skb)->frags[i];
2026                 nf = &pbuf->frag_array[i+1];
2027
2028                 map = pci_map_page(pdev, frag->page, frag->page_offset,
2029                                 frag->size, PCI_DMA_TODEVICE);
2030                 if (pci_dma_mapping_error(pdev, map))
2031                         goto unwind;
2032
2033                 nf->dma = map;
2034                 nf->length = frag->size;
2035         }
2036
2037         return 0;
2038
2039 unwind:
2040         while (--i >= 0) {
2041                 nf = &pbuf->frag_array[i+1];
2042                 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
2043         }
2044
2045         nf = &pbuf->frag_array[0];
2046         pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
2047
2048 out_err:
2049         return -ENOMEM;
2050 }
2051
2052 static int
2053 qlcnic_check_tx_tagging(struct qlcnic_adapter *adapter,
2054                         struct sk_buff *skb,
2055                         struct cmd_desc_type0 *first_desc)
2056 {
2057         u8 opcode = 0;
2058         u16 flags = 0;
2059         __be16 protocol = skb->protocol;
2060         struct vlan_ethhdr *vh;
2061
2062         if (protocol == cpu_to_be16(ETH_P_8021Q)) {
2063                 vh = (struct vlan_ethhdr *)skb->data;
2064                 protocol = vh->h_vlan_encapsulated_proto;
2065                 flags = FLAGS_VLAN_TAGGED;
2066                 qlcnic_set_tx_vlan_tci(first_desc, ntohs(vh->h_vlan_TCI));
2067         } else if (vlan_tx_tag_present(skb)) {
2068                 flags = FLAGS_VLAN_OOB;
2069                 qlcnic_set_tx_vlan_tci(first_desc, vlan_tx_tag_get(skb));
2070         }
2071         if (unlikely(adapter->pvid)) {
2072                 if (first_desc->vlan_TCI &&
2073                                 !(adapter->flags & QLCNIC_TAGGING_ENABLED))
2074                         return -EIO;
2075                 if (first_desc->vlan_TCI &&
2076                                 (adapter->flags & QLCNIC_TAGGING_ENABLED))
2077                         goto set_flags;
2078
2079                 flags = FLAGS_VLAN_OOB;
2080                 qlcnic_set_tx_vlan_tci(first_desc, adapter->pvid);
2081         }
2082 set_flags:
2083         qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
2084         return 0;
2085 }
2086
2087 static inline void
2088 qlcnic_clear_cmddesc(u64 *desc)
2089 {
2090         desc[0] = 0ULL;
2091         desc[2] = 0ULL;
2092         desc[7] = 0ULL;
2093 }
2094
2095 netdev_tx_t
2096 qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
2097 {
2098         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2099         struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
2100         struct qlcnic_cmd_buffer *pbuf;
2101         struct qlcnic_skb_frag *buffrag;
2102         struct cmd_desc_type0 *hwdesc, *first_desc;
2103         struct pci_dev *pdev;
2104         struct ethhdr *phdr;
2105         int i, k;
2106
2107         u32 producer;
2108         int frag_count, no_of_desc;
2109         u32 num_txd = tx_ring->num_desc;
2110
2111         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
2112                 netif_stop_queue(netdev);
2113                 return NETDEV_TX_BUSY;
2114         }
2115
2116         if (adapter->flags & QLCNIC_MACSPOOF) {
2117                 phdr = (struct ethhdr *)skb->data;
2118                 if (compare_ether_addr(phdr->h_source,
2119                                         adapter->mac_addr))
2120                         goto drop_packet;
2121         }
2122
2123         frag_count = skb_shinfo(skb)->nr_frags + 1;
2124
2125         /* 4 fragments per cmd des */
2126         no_of_desc = (frag_count + 3) >> 2;
2127
2128         if (unlikely(qlcnic_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
2129                 netif_stop_queue(netdev);
2130                 smp_mb();
2131                 if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH)
2132                         netif_start_queue(netdev);
2133                 else {
2134                         adapter->stats.xmit_off++;
2135                         return NETDEV_TX_BUSY;
2136                 }
2137         }
2138
2139         producer = tx_ring->producer;
2140         pbuf = &tx_ring->cmd_buf_arr[producer];
2141
2142         pdev = adapter->pdev;
2143
2144         first_desc = hwdesc = &tx_ring->desc_head[producer];
2145         qlcnic_clear_cmddesc((u64 *)hwdesc);
2146
2147         if (qlcnic_check_tx_tagging(adapter, skb, first_desc))
2148                 goto drop_packet;
2149
2150         if (qlcnic_map_tx_skb(pdev, skb, pbuf)) {
2151                 adapter->stats.tx_dma_map_error++;
2152                 goto drop_packet;
2153         }
2154
2155         pbuf->skb = skb;
2156         pbuf->frag_count = frag_count;
2157
2158         qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len);
2159         qlcnic_set_tx_port(first_desc, adapter->portnum);
2160
2161         for (i = 0; i < frag_count; i++) {
2162
2163                 k = i % 4;
2164
2165                 if ((k == 0) && (i > 0)) {
2166                         /* move to next desc.*/
2167                         producer = get_next_index(producer, num_txd);
2168                         hwdesc = &tx_ring->desc_head[producer];
2169                         qlcnic_clear_cmddesc((u64 *)hwdesc);
2170                         tx_ring->cmd_buf_arr[producer].skb = NULL;
2171                 }
2172
2173                 buffrag = &pbuf->frag_array[i];
2174
2175                 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
2176                 switch (k) {
2177                 case 0:
2178                         hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
2179                         break;
2180                 case 1:
2181                         hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
2182                         break;
2183                 case 2:
2184                         hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
2185                         break;
2186                 case 3:
2187                         hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
2188                         break;
2189                 }
2190         }
2191
2192         tx_ring->producer = get_next_index(producer, num_txd);
2193
2194         qlcnic_tso_check(netdev, tx_ring, first_desc, skb);
2195
2196         if (qlcnic_mac_learn)
2197                 qlcnic_send_filter(adapter, tx_ring, first_desc, skb);
2198
2199         qlcnic_update_cmd_producer(adapter, tx_ring);
2200
2201         adapter->stats.txbytes += skb->len;
2202         adapter->stats.xmitcalled++;
2203
2204         return NETDEV_TX_OK;
2205
2206 drop_packet:
2207         adapter->stats.txdropped++;
2208         dev_kfree_skb_any(skb);
2209         return NETDEV_TX_OK;
2210 }
2211
2212 static int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2213 {
2214         struct net_device *netdev = adapter->netdev;
2215         u32 temp, temp_state, temp_val;
2216         int rv = 0;
2217
2218         temp = QLCRD32(adapter, CRB_TEMP_STATE);
2219
2220         temp_state = qlcnic_get_temp_state(temp);
2221         temp_val = qlcnic_get_temp_val(temp);
2222
2223         if (temp_state == QLCNIC_TEMP_PANIC) {
2224                 dev_err(&netdev->dev,
2225                        "Device temperature %d degrees C exceeds"
2226                        " maximum allowed. Hardware has been shut down.\n",
2227                        temp_val);
2228                 rv = 1;
2229         } else if (temp_state == QLCNIC_TEMP_WARN) {
2230                 if (adapter->temp == QLCNIC_TEMP_NORMAL) {
2231                         dev_err(&netdev->dev,
2232                                "Device temperature %d degrees C "
2233                                "exceeds operating range."
2234                                " Immediate action needed.\n",
2235                                temp_val);
2236                 }
2237         } else {
2238                 if (adapter->temp == QLCNIC_TEMP_WARN) {
2239                         dev_info(&netdev->dev,
2240                                "Device temperature is now %d degrees C"
2241                                " in normal range.\n", temp_val);
2242                 }
2243         }
2244         adapter->temp = temp_state;
2245         return rv;
2246 }
2247
2248 void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup)
2249 {
2250         struct net_device *netdev = adapter->netdev;
2251
2252         if (adapter->ahw.linkup && !linkup) {
2253                 netdev_info(netdev, "NIC Link is down\n");
2254                 adapter->ahw.linkup = 0;
2255                 if (netif_running(netdev)) {
2256                         netif_carrier_off(netdev);
2257                         netif_stop_queue(netdev);
2258                 }
2259         } else if (!adapter->ahw.linkup && linkup) {
2260                 netdev_info(netdev, "NIC Link is up\n");
2261                 adapter->ahw.linkup = 1;
2262                 if (netif_running(netdev)) {
2263                         netif_carrier_on(netdev);
2264                         netif_wake_queue(netdev);
2265                 }
2266         }
2267 }
2268
2269 static void qlcnic_tx_timeout(struct net_device *netdev)
2270 {
2271         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2272
2273         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2274                 return;
2275
2276         dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2277
2278         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
2279                 adapter->need_fw_reset = 1;
2280         else
2281                 adapter->reset_context = 1;
2282 }
2283
2284 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2285 {
2286         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2287         struct net_device_stats *stats = &netdev->stats;
2288
2289         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2290         stats->tx_packets = adapter->stats.xmitfinished;
2291         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2292         stats->tx_bytes = adapter->stats.txbytes;
2293         stats->rx_dropped = adapter->stats.rxdropped;
2294         stats->tx_dropped = adapter->stats.txdropped;
2295
2296         return stats;
2297 }
2298
2299 static irqreturn_t qlcnic_clear_legacy_intr(struct qlcnic_adapter *adapter)
2300 {
2301         u32 status;
2302
2303         status = readl(adapter->isr_int_vec);
2304
2305         if (!(status & adapter->int_vec_bit))
2306                 return IRQ_NONE;
2307
2308         /* check interrupt state machine, to be sure */
2309         status = readl(adapter->crb_int_state_reg);
2310         if (!ISR_LEGACY_INT_TRIGGERED(status))
2311                 return IRQ_NONE;
2312
2313         writel(0xffffffff, adapter->tgt_status_reg);
2314         /* read twice to ensure write is flushed */
2315         readl(adapter->isr_int_vec);
2316         readl(adapter->isr_int_vec);
2317
2318         return IRQ_HANDLED;
2319 }
2320
2321 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2322 {
2323         struct qlcnic_host_sds_ring *sds_ring = data;
2324         struct qlcnic_adapter *adapter = sds_ring->adapter;
2325
2326         if (adapter->flags & QLCNIC_MSIX_ENABLED)
2327                 goto done;
2328         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2329                 writel(0xffffffff, adapter->tgt_status_reg);
2330                 goto done;
2331         }
2332
2333         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2334                 return IRQ_NONE;
2335
2336 done:
2337         adapter->diag_cnt++;
2338         qlcnic_enable_int(sds_ring);
2339         return IRQ_HANDLED;
2340 }
2341
2342 static irqreturn_t qlcnic_intr(int irq, void *data)
2343 {
2344         struct qlcnic_host_sds_ring *sds_ring = data;
2345         struct qlcnic_adapter *adapter = sds_ring->adapter;
2346
2347         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2348                 return IRQ_NONE;
2349
2350         napi_schedule(&sds_ring->napi);
2351
2352         return IRQ_HANDLED;
2353 }
2354
2355 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2356 {
2357         struct qlcnic_host_sds_ring *sds_ring = data;
2358         struct qlcnic_adapter *adapter = sds_ring->adapter;
2359
2360         /* clear interrupt */
2361         writel(0xffffffff, adapter->tgt_status_reg);
2362
2363         napi_schedule(&sds_ring->napi);
2364         return IRQ_HANDLED;
2365 }
2366
2367 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2368 {
2369         struct qlcnic_host_sds_ring *sds_ring = data;
2370
2371         napi_schedule(&sds_ring->napi);
2372         return IRQ_HANDLED;
2373 }
2374
2375 static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter)
2376 {
2377         u32 sw_consumer, hw_consumer;
2378         int count = 0, i;
2379         struct qlcnic_cmd_buffer *buffer;
2380         struct pci_dev *pdev = adapter->pdev;
2381         struct net_device *netdev = adapter->netdev;
2382         struct qlcnic_skb_frag *frag;
2383         int done;
2384         struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
2385
2386         if (!spin_trylock(&adapter->tx_clean_lock))
2387                 return 1;
2388
2389         sw_consumer = tx_ring->sw_consumer;
2390         hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
2391
2392         while (sw_consumer != hw_consumer) {
2393                 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
2394                 if (buffer->skb) {
2395                         frag = &buffer->frag_array[0];
2396                         pci_unmap_single(pdev, frag->dma, frag->length,
2397                                          PCI_DMA_TODEVICE);
2398                         frag->dma = 0ULL;
2399                         for (i = 1; i < buffer->frag_count; i++) {
2400                                 frag++;
2401                                 pci_unmap_page(pdev, frag->dma, frag->length,
2402                                                PCI_DMA_TODEVICE);
2403                                 frag->dma = 0ULL;
2404                         }
2405
2406                         adapter->stats.xmitfinished++;
2407                         dev_kfree_skb_any(buffer->skb);
2408                         buffer->skb = NULL;
2409                 }
2410
2411                 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
2412                 if (++count >= MAX_STATUS_HANDLE)
2413                         break;
2414         }
2415
2416         if (count && netif_running(netdev)) {
2417                 tx_ring->sw_consumer = sw_consumer;
2418
2419                 smp_mb();
2420
2421                 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
2422                         if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) {
2423                                 netif_wake_queue(netdev);
2424                                 adapter->stats.xmit_on++;
2425                         }
2426                 }
2427                 adapter->tx_timeo_cnt = 0;
2428         }
2429         /*
2430          * If everything is freed up to consumer then check if the ring is full
2431          * If the ring is full then check if more needs to be freed and
2432          * schedule the call back again.
2433          *
2434          * This happens when there are 2 CPUs. One could be freeing and the
2435          * other filling it. If the ring is full when we get out of here and
2436          * the card has already interrupted the host then the host can miss the
2437          * interrupt.
2438          *
2439          * There is still a possible race condition and the host could miss an
2440          * interrupt. The card has to take care of this.
2441          */
2442         hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
2443         done = (sw_consumer == hw_consumer);
2444         spin_unlock(&adapter->tx_clean_lock);
2445
2446         return done;
2447 }
2448
2449 static int qlcnic_poll(struct napi_struct *napi, int budget)
2450 {
2451         struct qlcnic_host_sds_ring *sds_ring =
2452                 container_of(napi, struct qlcnic_host_sds_ring, napi);
2453
2454         struct qlcnic_adapter *adapter = sds_ring->adapter;
2455
2456         int tx_complete;
2457         int work_done;
2458
2459         tx_complete = qlcnic_process_cmd_ring(adapter);
2460
2461         work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2462
2463         if ((work_done < budget) && tx_complete) {
2464                 napi_complete(&sds_ring->napi);
2465                 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2466                         qlcnic_enable_int(sds_ring);
2467         }
2468
2469         return work_done;
2470 }
2471
2472 static int qlcnic_rx_poll(struct napi_struct *napi, int budget)
2473 {
2474         struct qlcnic_host_sds_ring *sds_ring =
2475                 container_of(napi, struct qlcnic_host_sds_ring, napi);
2476
2477         struct qlcnic_adapter *adapter = sds_ring->adapter;
2478         int work_done;
2479
2480         work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2481
2482         if (work_done < budget) {
2483                 napi_complete(&sds_ring->napi);
2484                 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2485                         qlcnic_enable_int(sds_ring);
2486         }
2487
2488         return work_done;
2489 }
2490
2491 #ifdef CONFIG_NET_POLL_CONTROLLER
2492 static void qlcnic_poll_controller(struct net_device *netdev)
2493 {
2494         int ring;
2495         struct qlcnic_host_sds_ring *sds_ring;
2496         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2497         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
2498
2499         disable_irq(adapter->irq);
2500         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2501                 sds_ring = &recv_ctx->sds_rings[ring];
2502                 qlcnic_intr(adapter->irq, sds_ring);
2503         }
2504         enable_irq(adapter->irq);
2505 }
2506 #endif
2507
2508 static void
2509 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2510 {
2511         u32 val;
2512
2513         val = adapter->portnum & 0xf;
2514         val |= encoding << 7;
2515         val |= (jiffies - adapter->dev_rst_time) << 8;
2516
2517         QLCWR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2518         adapter->dev_rst_time = jiffies;
2519 }
2520
2521 static int
2522 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2523 {
2524         u32  val;
2525
2526         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2527                         state != QLCNIC_DEV_NEED_QUISCENT);
2528
2529         if (qlcnic_api_lock(adapter))
2530                 return -EIO;
2531
2532         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2533
2534         if (state == QLCNIC_DEV_NEED_RESET)
2535                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2536         else if (state == QLCNIC_DEV_NEED_QUISCENT)
2537                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2538
2539         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2540
2541         qlcnic_api_unlock(adapter);
2542
2543         return 0;
2544 }
2545
2546 static int
2547 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2548 {
2549         u32  val;
2550
2551         if (qlcnic_api_lock(adapter))
2552                 return -EBUSY;
2553
2554         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2555         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2556         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2557
2558         qlcnic_api_unlock(adapter);
2559
2560         return 0;
2561 }
2562
2563 static void
2564 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2565 {
2566         u32  val;
2567
2568         if (qlcnic_api_lock(adapter))
2569                 goto err;
2570
2571         val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2572         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2573         QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2574
2575         if (failed) {
2576                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
2577                 dev_info(&adapter->pdev->dev,
2578                                 "Device state set to Failed. Please Reboot\n");
2579         } else if (!(val & 0x11111111))
2580                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_COLD);
2581
2582         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2583         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2584         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2585
2586         qlcnic_api_unlock(adapter);
2587 err:
2588         adapter->fw_fail_cnt = 0;
2589         clear_bit(__QLCNIC_START_FW, &adapter->state);
2590         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2591 }
2592
2593 /* Grab api lock, before checking state */
2594 static int
2595 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2596 {
2597         int act, state;
2598
2599         state = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2600         act = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2601
2602         if (((state & 0x11111111) == (act & 0x11111111)) ||
2603                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2604                 return 0;
2605         else
2606                 return 1;
2607 }
2608
2609 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2610 {
2611         u32 val = QLCRD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2612
2613         if (val != QLCNIC_DRV_IDC_VER) {
2614                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2615                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2616         }
2617
2618         return 0;
2619 }
2620
2621 static int
2622 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2623 {
2624         u32 val, prev_state;
2625         u8 dev_init_timeo = adapter->dev_init_timeo;
2626         u8 portnum = adapter->portnum;
2627         u8 ret;
2628
2629         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2630                 return 1;
2631
2632         if (qlcnic_api_lock(adapter))
2633                 return -1;
2634
2635         val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2636         if (!(val & (1 << (portnum * 4)))) {
2637                 QLC_DEV_SET_REF_CNT(val, portnum);
2638                 QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2639         }
2640
2641         prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2642         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2643
2644         switch (prev_state) {
2645         case QLCNIC_DEV_COLD:
2646                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
2647                 QLCWR32(adapter, QLCNIC_CRB_DRV_IDC_VER, QLCNIC_DRV_IDC_VER);
2648                 qlcnic_idc_debug_info(adapter, 0);
2649                 qlcnic_api_unlock(adapter);
2650                 return 1;
2651
2652         case QLCNIC_DEV_READY:
2653                 ret = qlcnic_check_idc_ver(adapter);
2654                 qlcnic_api_unlock(adapter);
2655                 return ret;
2656
2657         case QLCNIC_DEV_NEED_RESET:
2658                 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2659                 QLC_DEV_SET_RST_RDY(val, portnum);
2660                 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2661                 break;
2662
2663         case QLCNIC_DEV_NEED_QUISCENT:
2664                 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2665                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
2666                 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2667                 break;
2668
2669         case QLCNIC_DEV_FAILED:
2670                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
2671                 qlcnic_api_unlock(adapter);
2672                 return -1;
2673
2674         case QLCNIC_DEV_INITIALIZING:
2675         case QLCNIC_DEV_QUISCENT:
2676                 break;
2677         }
2678
2679         qlcnic_api_unlock(adapter);
2680
2681         do {
2682                 msleep(1000);
2683                 prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2684
2685                 if (prev_state == QLCNIC_DEV_QUISCENT)
2686                         continue;
2687         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
2688
2689         if (!dev_init_timeo) {
2690                 dev_err(&adapter->pdev->dev,
2691                         "Waiting for device to initialize timeout\n");
2692                 return -1;
2693         }
2694
2695         if (qlcnic_api_lock(adapter))
2696                 return -1;
2697
2698         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2699         QLC_DEV_CLR_RST_QSCNT(val, portnum);
2700         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2701
2702         ret = qlcnic_check_idc_ver(adapter);
2703         qlcnic_api_unlock(adapter);
2704
2705         return ret;
2706 }
2707
2708 static void
2709 qlcnic_fwinit_work(struct work_struct *work)
2710 {
2711         struct qlcnic_adapter *adapter = container_of(work,
2712                         struct qlcnic_adapter, fw_work.work);
2713         u32 dev_state = 0xf;
2714
2715         if (qlcnic_api_lock(adapter))
2716                 goto err_ret;
2717
2718         dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2719         if (dev_state == QLCNIC_DEV_QUISCENT ||
2720             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2721                 qlcnic_api_unlock(adapter);
2722                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2723                                                 FW_POLL_DELAY * 2);
2724                 return;
2725         }
2726
2727         if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC) {
2728                 qlcnic_api_unlock(adapter);
2729                 goto wait_npar;
2730         }
2731
2732         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2733                 dev_err(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2734                                         adapter->reset_ack_timeo);
2735                 goto skip_ack_check;
2736         }
2737
2738         if (!qlcnic_check_drv_state(adapter)) {
2739 skip_ack_check:
2740                 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2741
2742                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2743                         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE,
2744                                                 QLCNIC_DEV_INITIALIZING);
2745                         set_bit(__QLCNIC_START_FW, &adapter->state);
2746                         QLCDB(adapter, DRV, "Restarting fw\n");
2747                         qlcnic_idc_debug_info(adapter, 0);
2748                 }
2749
2750                 qlcnic_api_unlock(adapter);
2751
2752                 if (!adapter->nic_ops->start_firmware(adapter)) {
2753                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2754                         adapter->fw_wait_cnt = 0;
2755                         return;
2756                 }
2757                 goto err_ret;
2758         }
2759
2760         qlcnic_api_unlock(adapter);
2761
2762 wait_npar:
2763         dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2764         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
2765
2766         switch (dev_state) {
2767         case QLCNIC_DEV_READY:
2768                 if (!adapter->nic_ops->start_firmware(adapter)) {
2769                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2770                         adapter->fw_wait_cnt = 0;
2771                         return;
2772                 }
2773         case QLCNIC_DEV_FAILED:
2774                 break;
2775         default:
2776                 qlcnic_schedule_work(adapter,
2777                         qlcnic_fwinit_work, FW_POLL_DELAY);
2778                 return;
2779         }
2780
2781 err_ret:
2782         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2783                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
2784         netif_device_attach(adapter->netdev);
2785         qlcnic_clr_all_drv_state(adapter, 0);
2786 }
2787
2788 static void
2789 qlcnic_detach_work(struct work_struct *work)
2790 {
2791         struct qlcnic_adapter *adapter = container_of(work,
2792                         struct qlcnic_adapter, fw_work.work);
2793         struct net_device *netdev = adapter->netdev;
2794         u32 status;
2795
2796         netif_device_detach(netdev);
2797
2798         /* Dont grab rtnl lock during Quiscent mode */
2799         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2800                 if (netif_running(netdev))
2801                         __qlcnic_down(adapter, netdev);
2802         } else
2803                 qlcnic_down(adapter, netdev);
2804
2805         status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2806
2807         if (status & QLCNIC_RCODE_FATAL_ERROR)
2808                 goto err_ret;
2809
2810         if (adapter->temp == QLCNIC_TEMP_PANIC)
2811                 goto err_ret;
2812
2813         if (qlcnic_set_drv_state(adapter, adapter->dev_state))
2814                 goto err_ret;
2815
2816         adapter->fw_wait_cnt = 0;
2817
2818         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2819
2820         return;
2821
2822 err_ret:
2823         dev_err(&adapter->pdev->dev, "detach failed; status=%d temp=%d\n",
2824                         status, adapter->temp);
2825         netif_device_attach(netdev);
2826         qlcnic_clr_all_drv_state(adapter, 1);
2827 }
2828
2829 /*Transit NPAR state to NON Operational */
2830 static void
2831 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
2832 {
2833         u32 state;
2834
2835         state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2836         if (state == QLCNIC_DEV_NPAR_NON_OPER)
2837                 return;
2838
2839         if (qlcnic_api_lock(adapter))
2840                 return;
2841         QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
2842         qlcnic_api_unlock(adapter);
2843 }
2844
2845 /*Transit to RESET state from READY state only */
2846 static void
2847 qlcnic_dev_request_reset(struct qlcnic_adapter *adapter)
2848 {
2849         u32 state;
2850
2851         adapter->need_fw_reset = 1;
2852         if (qlcnic_api_lock(adapter))
2853                 return;
2854
2855         state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2856
2857         if (state == QLCNIC_DEV_READY) {
2858                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_RESET);
2859                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
2860                 qlcnic_idc_debug_info(adapter, 0);
2861         }
2862
2863         QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
2864         qlcnic_api_unlock(adapter);
2865 }
2866
2867 /* Transit to NPAR READY state from NPAR NOT READY state */
2868 static void
2869 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
2870 {
2871         if (qlcnic_api_lock(adapter))
2872                 return;
2873
2874         QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_OPER);
2875         QLCDB(adapter, DRV, "NPAR operational state set\n");
2876
2877         qlcnic_api_unlock(adapter);
2878 }
2879
2880 static void
2881 qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2882                 work_func_t func, int delay)
2883 {
2884         if (test_bit(__QLCNIC_AER, &adapter->state))
2885                 return;
2886
2887         INIT_DELAYED_WORK(&adapter->fw_work, func);
2888         queue_delayed_work(qlcnic_wq, &adapter->fw_work,
2889                                         round_jiffies_relative(delay));
2890 }
2891
2892 static void
2893 qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter)
2894 {
2895         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2896                 msleep(10);
2897
2898         cancel_delayed_work_sync(&adapter->fw_work);
2899 }
2900
2901 static void
2902 qlcnic_attach_work(struct work_struct *work)
2903 {
2904         struct qlcnic_adapter *adapter = container_of(work,
2905                                 struct qlcnic_adapter, fw_work.work);
2906         struct net_device *netdev = adapter->netdev;
2907         u32 npar_state;
2908
2909         if (adapter->op_mode != QLCNIC_MGMT_FUNC) {
2910                 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2911                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
2912                         qlcnic_clr_all_drv_state(adapter, 0);
2913                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
2914                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
2915                                                         FW_POLL_DELAY);
2916                 else
2917                         goto attach;
2918                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
2919                 return;
2920         }
2921 attach:
2922         if (netif_running(netdev)) {
2923                 if (qlcnic_up(adapter, netdev))
2924                         goto done;
2925
2926                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2927         }
2928
2929 done:
2930         netif_device_attach(netdev);
2931         adapter->fw_fail_cnt = 0;
2932         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2933
2934         if (!qlcnic_clr_drv_state(adapter))
2935                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2936                                                         FW_POLL_DELAY);
2937 }
2938
2939 static int
2940 qlcnic_check_health(struct qlcnic_adapter *adapter)
2941 {
2942         u32 state = 0, heartbeat;
2943         struct net_device *netdev = adapter->netdev;
2944
2945         if (qlcnic_check_temp(adapter))
2946                 goto detach;
2947
2948         if (adapter->need_fw_reset)
2949                 qlcnic_dev_request_reset(adapter);
2950
2951         state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2952         if (state == QLCNIC_DEV_NEED_RESET) {
2953                 qlcnic_set_npar_non_operational(adapter);
2954                 adapter->need_fw_reset = 1;
2955         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
2956                 goto detach;
2957
2958         heartbeat = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
2959         if (heartbeat != adapter->heartbeat) {
2960                 adapter->heartbeat = heartbeat;
2961                 adapter->fw_fail_cnt = 0;
2962                 if (adapter->need_fw_reset)
2963                         goto detach;
2964
2965                 if (adapter->reset_context &&
2966                     auto_fw_reset == AUTO_FW_RESET_ENABLED) {
2967                         qlcnic_reset_hw_context(adapter);
2968                         adapter->netdev->trans_start = jiffies;
2969                 }
2970
2971                 return 0;
2972         }
2973
2974         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2975                 return 0;
2976
2977         qlcnic_dev_request_reset(adapter);
2978
2979         if ((auto_fw_reset == AUTO_FW_RESET_ENABLED))
2980                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
2981
2982         dev_info(&netdev->dev, "firmware hang detected\n");
2983
2984 detach:
2985         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
2986                 QLCNIC_DEV_NEED_RESET;
2987
2988         if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2989                 !test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) {
2990
2991                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
2992                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
2993         }
2994
2995         return 1;
2996 }
2997
2998 static void
2999 qlcnic_fw_poll_work(struct work_struct *work)
3000 {
3001         struct qlcnic_adapter *adapter = container_of(work,
3002                                 struct qlcnic_adapter, fw_work.work);
3003
3004         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3005                 goto reschedule;
3006
3007
3008         if (qlcnic_check_health(adapter))
3009                 return;
3010
3011         if (adapter->fhash.fnum)
3012                 qlcnic_prune_lb_filters(adapter);
3013
3014 reschedule:
3015         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3016 }
3017
3018 static int qlcnic_is_first_func(struct pci_dev *pdev)
3019 {
3020         struct pci_dev *oth_pdev;
3021         int val = pdev->devfn;
3022
3023         while (val-- > 0) {
3024                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3025                         (pdev->bus), pdev->bus->number,
3026                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3027                 if (!oth_pdev)
3028                         continue;
3029
3030                 if (oth_pdev->current_state != PCI_D3cold) {
3031                         pci_dev_put(oth_pdev);
3032                         return 0;
3033                 }
3034                 pci_dev_put(oth_pdev);
3035         }
3036         return 1;
3037 }
3038
3039 static int qlcnic_attach_func(struct pci_dev *pdev)
3040 {
3041         int err, first_func;
3042         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3043         struct net_device *netdev = adapter->netdev;
3044
3045         pdev->error_state = pci_channel_io_normal;
3046
3047         err = pci_enable_device(pdev);
3048         if (err)
3049                 return err;
3050
3051         pci_set_power_state(pdev, PCI_D0);
3052         pci_set_master(pdev);
3053         pci_restore_state(pdev);
3054
3055         first_func = qlcnic_is_first_func(pdev);
3056
3057         if (qlcnic_api_lock(adapter))
3058                 return -EINVAL;
3059
3060         if (adapter->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3061                 adapter->need_fw_reset = 1;
3062                 set_bit(__QLCNIC_START_FW, &adapter->state);
3063                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
3064                 QLCDB(adapter, DRV, "Restarting fw\n");
3065         }
3066         qlcnic_api_unlock(adapter);
3067
3068         err = adapter->nic_ops->start_firmware(adapter);
3069         if (err)
3070                 return err;
3071
3072         qlcnic_clr_drv_state(adapter);
3073         qlcnic_setup_intr(adapter);
3074
3075         if (netif_running(netdev)) {
3076                 err = qlcnic_attach(adapter);
3077                 if (err) {
3078                         qlcnic_clr_all_drv_state(adapter, 1);
3079                         clear_bit(__QLCNIC_AER, &adapter->state);
3080                         netif_device_attach(netdev);
3081                         return err;
3082                 }
3083
3084                 err = qlcnic_up(adapter, netdev);
3085                 if (err)
3086                         goto done;
3087
3088                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3089         }
3090  done:
3091         netif_device_attach(netdev);
3092         return err;
3093 }
3094
3095 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3096                                                 pci_channel_state_t state)
3097 {
3098         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3099         struct net_device *netdev = adapter->netdev;
3100
3101         if (state == pci_channel_io_perm_failure)
3102                 return PCI_ERS_RESULT_DISCONNECT;
3103
3104         if (state == pci_channel_io_normal)
3105                 return PCI_ERS_RESULT_RECOVERED;
3106
3107         set_bit(__QLCNIC_AER, &adapter->state);
3108         netif_device_detach(netdev);
3109
3110         cancel_delayed_work_sync(&adapter->fw_work);
3111
3112         if (netif_running(netdev))
3113                 qlcnic_down(adapter, netdev);
3114
3115         qlcnic_detach(adapter);
3116         qlcnic_teardown_intr(adapter);
3117
3118         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3119
3120         pci_save_state(pdev);
3121         pci_disable_device(pdev);
3122
3123         return PCI_ERS_RESULT_NEED_RESET;
3124 }
3125
3126 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3127 {
3128         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3129                                 PCI_ERS_RESULT_RECOVERED;
3130 }
3131
3132 static void qlcnic_io_resume(struct pci_dev *pdev)
3133 {
3134         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3135
3136         pci_cleanup_aer_uncorrect_error_status(pdev);
3137
3138         if (QLCRD32(adapter, QLCNIC_CRB_DEV_STATE) == QLCNIC_DEV_READY &&
3139             test_and_clear_bit(__QLCNIC_AER, &adapter->state))
3140                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3141                                                 FW_POLL_DELAY);
3142 }
3143
3144 static int
3145 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3146 {
3147         int err;
3148
3149         err = qlcnic_can_start_firmware(adapter);
3150         if (err)
3151                 return err;
3152
3153         err = qlcnic_check_npar_opertional(adapter);
3154         if (err)
3155                 return err;
3156
3157         err = qlcnic_initialize_nic(adapter);
3158         if (err)
3159                 return err;
3160
3161         qlcnic_check_options(adapter);
3162
3163         err = qlcnic_set_eswitch_port_config(adapter);
3164         if (err)
3165                 return err;
3166
3167         adapter->need_fw_reset = 0;
3168
3169         return err;
3170 }
3171
3172 static int
3173 qlcnicvf_config_bridged_mode(struct qlcnic_adapter *adapter, u32 enable)
3174 {
3175         return -EOPNOTSUPP;
3176 }
3177
3178 static int
3179 qlcnicvf_config_led(struct qlcnic_adapter *adapter, u32 state, u32 rate)
3180 {
3181         return -EOPNOTSUPP;
3182 }
3183
3184 static ssize_t
3185 qlcnic_store_bridged_mode(struct device *dev,
3186                 struct device_attribute *attr, const char *buf, size_t len)
3187 {
3188         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3189         unsigned long new;
3190         int ret = -EINVAL;
3191
3192         if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG))
3193                 goto err_out;
3194
3195         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3196                 goto err_out;
3197
3198         if (strict_strtoul(buf, 2, &new))
3199                 goto err_out;
3200
3201         if (!adapter->nic_ops->config_bridged_mode(adapter, !!new))
3202                 ret = len;
3203
3204 err_out:
3205         return ret;
3206 }
3207
3208 static ssize_t
3209 qlcnic_show_bridged_mode(struct device *dev,
3210                 struct device_attribute *attr, char *buf)
3211 {
3212         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3213         int bridged_mode = 0;
3214
3215         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
3216                 bridged_mode = !!(adapter->flags & QLCNIC_BRIDGE_ENABLED);
3217
3218         return sprintf(buf, "%d\n", bridged_mode);
3219 }
3220
3221 static struct device_attribute dev_attr_bridged_mode = {
3222        .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
3223        .show = qlcnic_show_bridged_mode,
3224        .store = qlcnic_store_bridged_mode,
3225 };
3226
3227 static ssize_t
3228 qlcnic_store_diag_mode(struct device *dev,
3229                 struct device_attribute *attr, const char *buf, size_t len)
3230 {
3231         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3232         unsigned long new;
3233
3234         if (strict_strtoul(buf, 2, &new))
3235                 return -EINVAL;
3236
3237         if (!!new != !!(adapter->flags & QLCNIC_DIAG_ENABLED))
3238                 adapter->flags ^= QLCNIC_DIAG_ENABLED;
3239
3240         return len;
3241 }
3242
3243 static ssize_t
3244 qlcnic_show_diag_mode(struct device *dev,
3245                 struct device_attribute *attr, char *buf)
3246 {
3247         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3248
3249         return sprintf(buf, "%d\n",
3250                         !!(adapter->flags & QLCNIC_DIAG_ENABLED));
3251 }
3252
3253 static struct device_attribute dev_attr_diag_mode = {
3254         .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
3255         .show = qlcnic_show_diag_mode,
3256         .store = qlcnic_store_diag_mode,
3257 };
3258
3259 static int
3260 qlcnic_sysfs_validate_crb(struct qlcnic_adapter *adapter,
3261                 loff_t offset, size_t size)
3262 {
3263         size_t crb_size = 4;
3264
3265         if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
3266                 return -EIO;
3267
3268         if (offset < QLCNIC_PCI_CRBSPACE) {
3269                 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM,
3270                                         QLCNIC_PCI_CAMQM_END))
3271                         crb_size = 8;
3272                 else
3273                         return -EINVAL;
3274         }
3275
3276         if ((size != crb_size) || (offset & (crb_size-1)))
3277                 return  -EINVAL;
3278
3279         return 0;
3280 }
3281
3282 static ssize_t
3283 qlcnic_sysfs_read_crb(struct file *filp, struct kobject *kobj,
3284                 struct bin_attribute *attr,
3285                 char *buf, loff_t offset, size_t size)
3286 {
3287         struct device *dev = container_of(kobj, struct device, kobj);
3288         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3289         u32 data;
3290         u64 qmdata;
3291         int ret;
3292
3293         ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
3294         if (ret != 0)
3295                 return ret;
3296
3297         if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
3298                 qlcnic_pci_camqm_read_2M(adapter, offset, &qmdata);
3299                 memcpy(buf, &qmdata, size);
3300         } else {
3301                 data = QLCRD32(adapter, offset);
3302                 memcpy(buf, &data, size);
3303         }
3304         return size;
3305 }
3306
3307 static ssize_t
3308 qlcnic_sysfs_write_crb(struct file *filp, struct kobject *kobj,
3309                 struct bin_attribute *attr,
3310                 char *buf, loff_t offset, size_t size)
3311 {
3312         struct device *dev = container_of(kobj, struct device, kobj);
3313         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3314         u32 data;
3315         u64 qmdata;
3316         int ret;
3317
3318         ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
3319         if (ret != 0)
3320                 return ret;
3321
3322         if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
3323                 memcpy(&qmdata, buf, size);
3324                 qlcnic_pci_camqm_write_2M(adapter, offset, qmdata);
3325         } else {
3326                 memcpy(&data, buf, size);
3327                 QLCWR32(adapter, offset, data);
3328         }
3329         return size;
3330 }
3331
3332 static int
3333 qlcnic_sysfs_validate_mem(struct qlcnic_adapter *adapter,
3334                 loff_t offset, size_t size)
3335 {
3336         if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
3337                 return -EIO;
3338
3339         if ((size != 8) || (offset & 0x7))
3340                 return  -EIO;
3341
3342         return 0;
3343 }
3344
3345 static ssize_t
3346 qlcnic_sysfs_read_mem(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         u64 data;
3353         int ret;
3354
3355         ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
3356         if (ret != 0)
3357                 return ret;
3358
3359         if (qlcnic_pci_mem_read_2M(adapter, offset, &data))
3360                 return -EIO;
3361
3362         memcpy(buf, &data, size);
3363
3364         return size;
3365 }
3366
3367 static ssize_t
3368 qlcnic_sysfs_write_mem(struct file *filp, struct kobject *kobj,
3369                 struct bin_attribute *attr,
3370                 char *buf, loff_t offset, size_t size)
3371 {
3372         struct device *dev = container_of(kobj, struct device, kobj);
3373         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3374         u64 data;
3375         int ret;
3376
3377         ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
3378         if (ret != 0)
3379                 return ret;
3380
3381         memcpy(&data, buf, size);
3382
3383         if (qlcnic_pci_mem_write_2M(adapter, offset, data))
3384                 return -EIO;
3385
3386         return size;
3387 }
3388
3389
3390 static struct bin_attribute bin_attr_crb = {
3391         .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
3392         .size = 0,
3393         .read = qlcnic_sysfs_read_crb,
3394         .write = qlcnic_sysfs_write_crb,
3395 };
3396
3397 static struct bin_attribute bin_attr_mem = {
3398         .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
3399         .size = 0,
3400         .read = qlcnic_sysfs_read_mem,
3401         .write = qlcnic_sysfs_write_mem,
3402 };
3403
3404 static int
3405 validate_pm_config(struct qlcnic_adapter *adapter,
3406                         struct qlcnic_pm_func_cfg *pm_cfg, int count)
3407 {
3408
3409         u8 src_pci_func, s_esw_id, d_esw_id;
3410         u8 dest_pci_func;
3411         int i;
3412
3413         for (i = 0; i < count; i++) {
3414                 src_pci_func = pm_cfg[i].pci_func;
3415                 dest_pci_func = pm_cfg[i].dest_npar;
3416                 if (src_pci_func >= QLCNIC_MAX_PCI_FUNC
3417                                 || dest_pci_func >= QLCNIC_MAX_PCI_FUNC)
3418                         return QL_STATUS_INVALID_PARAM;
3419
3420                 if (adapter->npars[src_pci_func].type != QLCNIC_TYPE_NIC)
3421                         return QL_STATUS_INVALID_PARAM;
3422
3423                 if (adapter->npars[dest_pci_func].type != QLCNIC_TYPE_NIC)
3424                         return QL_STATUS_INVALID_PARAM;
3425
3426                 s_esw_id = adapter->npars[src_pci_func].phy_port;
3427                 d_esw_id = adapter->npars[dest_pci_func].phy_port;
3428
3429                 if (s_esw_id != d_esw_id)
3430                         return QL_STATUS_INVALID_PARAM;
3431
3432         }
3433         return 0;
3434
3435 }
3436
3437 static ssize_t
3438 qlcnic_sysfs_write_pm_config(struct file *filp, struct kobject *kobj,
3439         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3440 {
3441         struct device *dev = container_of(kobj, struct device, kobj);
3442         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3443         struct qlcnic_pm_func_cfg *pm_cfg;
3444         u32 id, action, pci_func;
3445         int count, rem, i, ret;
3446
3447         count   = size / sizeof(struct qlcnic_pm_func_cfg);
3448         rem     = size % sizeof(struct qlcnic_pm_func_cfg);
3449         if (rem)
3450                 return QL_STATUS_INVALID_PARAM;
3451
3452         pm_cfg = (struct qlcnic_pm_func_cfg *) buf;
3453
3454         ret = validate_pm_config(adapter, pm_cfg, count);
3455         if (ret)
3456                 return ret;
3457         for (i = 0; i < count; i++) {
3458                 pci_func = pm_cfg[i].pci_func;
3459                 action = !!pm_cfg[i].action;
3460                 id = adapter->npars[pci_func].phy_port;
3461                 ret = qlcnic_config_port_mirroring(adapter, id,
3462                                                 action, pci_func);
3463                 if (ret)
3464                         return ret;
3465         }
3466
3467         for (i = 0; i < count; i++) {
3468                 pci_func = pm_cfg[i].pci_func;
3469                 id = adapter->npars[pci_func].phy_port;
3470                 adapter->npars[pci_func].enable_pm = !!pm_cfg[i].action;
3471                 adapter->npars[pci_func].dest_npar = id;
3472         }
3473         return size;
3474 }
3475
3476 static ssize_t
3477 qlcnic_sysfs_read_pm_config(struct file *filp, struct kobject *kobj,
3478         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3479 {
3480         struct device *dev = container_of(kobj, struct device, kobj);
3481         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3482         struct qlcnic_pm_func_cfg pm_cfg[QLCNIC_MAX_PCI_FUNC];
3483         int i;
3484
3485         if (size != sizeof(pm_cfg))
3486                 return QL_STATUS_INVALID_PARAM;
3487
3488         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
3489                 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3490                         continue;
3491                 pm_cfg[i].action = adapter->npars[i].enable_pm;
3492                 pm_cfg[i].dest_npar = 0;
3493                 pm_cfg[i].pci_func = i;
3494         }
3495         memcpy(buf, &pm_cfg, size);
3496
3497         return size;
3498 }
3499
3500 static int
3501 validate_esw_config(struct qlcnic_adapter *adapter,
3502         struct qlcnic_esw_func_cfg *esw_cfg, int count)
3503 {
3504         u32 op_mode;
3505         u8 pci_func;
3506         int i;
3507
3508         op_mode = readl(adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE);
3509
3510         for (i = 0; i < count; i++) {
3511                 pci_func = esw_cfg[i].pci_func;
3512                 if (pci_func >= QLCNIC_MAX_PCI_FUNC)
3513                         return QL_STATUS_INVALID_PARAM;
3514
3515                 if (adapter->op_mode == QLCNIC_MGMT_FUNC)
3516                         if (adapter->npars[pci_func].type != QLCNIC_TYPE_NIC)
3517                                 return QL_STATUS_INVALID_PARAM;
3518
3519                 switch (esw_cfg[i].op_mode) {
3520                 case QLCNIC_PORT_DEFAULTS:
3521                         if (QLC_DEV_GET_DRV(op_mode, pci_func) !=
3522                                                 QLCNIC_NON_PRIV_FUNC) {
3523                                 if (esw_cfg[i].mac_anti_spoof != 0)
3524                                         return QL_STATUS_INVALID_PARAM;
3525                                 if (esw_cfg[i].mac_override != 1)
3526                                         return QL_STATUS_INVALID_PARAM;
3527                                 if (esw_cfg[i].promisc_mode != 1)
3528                                         return QL_STATUS_INVALID_PARAM;
3529                         }
3530                         break;
3531                 case QLCNIC_ADD_VLAN:
3532                         if (!IS_VALID_VLAN(esw_cfg[i].vlan_id))
3533                                 return QL_STATUS_INVALID_PARAM;
3534                         if (!esw_cfg[i].op_type)
3535                                 return QL_STATUS_INVALID_PARAM;
3536                         break;
3537                 case QLCNIC_DEL_VLAN:
3538                         if (!esw_cfg[i].op_type)
3539                                 return QL_STATUS_INVALID_PARAM;
3540                         break;
3541                 default:
3542                         return QL_STATUS_INVALID_PARAM;
3543                 }
3544         }
3545         return 0;
3546 }
3547
3548 static ssize_t
3549 qlcnic_sysfs_write_esw_config(struct file *file, struct kobject *kobj,
3550         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3551 {
3552         struct device *dev = container_of(kobj, struct device, kobj);
3553         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3554         struct qlcnic_esw_func_cfg *esw_cfg;
3555         struct qlcnic_npar_info *npar;
3556         int count, rem, i, ret;
3557         u8 pci_func, op_mode = 0;
3558
3559         count   = size / sizeof(struct qlcnic_esw_func_cfg);
3560         rem     = size % sizeof(struct qlcnic_esw_func_cfg);
3561         if (rem)
3562                 return QL_STATUS_INVALID_PARAM;
3563
3564         esw_cfg = (struct qlcnic_esw_func_cfg *) buf;
3565         ret = validate_esw_config(adapter, esw_cfg, count);
3566         if (ret)
3567                 return ret;
3568
3569         for (i = 0; i < count; i++) {
3570                 if (adapter->op_mode == QLCNIC_MGMT_FUNC)
3571                         if (qlcnic_config_switch_port(adapter, &esw_cfg[i]))
3572                                 return QL_STATUS_INVALID_PARAM;
3573
3574                 if (adapter->ahw.pci_func != esw_cfg[i].pci_func)
3575                         continue;
3576
3577                 op_mode = esw_cfg[i].op_mode;
3578                 qlcnic_get_eswitch_port_config(adapter, &esw_cfg[i]);
3579                 esw_cfg[i].op_mode = op_mode;
3580                 esw_cfg[i].pci_func = adapter->ahw.pci_func;
3581
3582                 switch (esw_cfg[i].op_mode) {
3583                 case QLCNIC_PORT_DEFAULTS:
3584                         qlcnic_set_eswitch_port_features(adapter, &esw_cfg[i]);
3585                         break;
3586                 case QLCNIC_ADD_VLAN:
3587                         qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
3588                         break;
3589                 case QLCNIC_DEL_VLAN:
3590                         esw_cfg[i].vlan_id = 0;
3591                         qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
3592                         break;
3593                 }
3594         }
3595
3596         if (adapter->op_mode != QLCNIC_MGMT_FUNC)
3597                 goto out;
3598
3599         for (i = 0; i < count; i++) {
3600                 pci_func = esw_cfg[i].pci_func;
3601                 npar = &adapter->npars[pci_func];
3602                 switch (esw_cfg[i].op_mode) {
3603                 case QLCNIC_PORT_DEFAULTS:
3604                         npar->promisc_mode = esw_cfg[i].promisc_mode;
3605                         npar->mac_override = esw_cfg[i].mac_override;
3606                         npar->offload_flags = esw_cfg[i].offload_flags;
3607                         npar->mac_anti_spoof = esw_cfg[i].mac_anti_spoof;
3608                         npar->discard_tagged = esw_cfg[i].discard_tagged;
3609                         break;
3610                 case QLCNIC_ADD_VLAN:
3611                         npar->pvid = esw_cfg[i].vlan_id;
3612                         break;
3613                 case QLCNIC_DEL_VLAN:
3614                         npar->pvid = 0;
3615                         break;
3616                 }
3617         }
3618 out:
3619         return size;
3620 }
3621
3622 static ssize_t
3623 qlcnic_sysfs_read_esw_config(struct file *file, struct kobject *kobj,
3624         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3625 {
3626         struct device *dev = container_of(kobj, struct device, kobj);
3627         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3628         struct qlcnic_esw_func_cfg esw_cfg[QLCNIC_MAX_PCI_FUNC];
3629         u8 i;
3630
3631         if (size != sizeof(esw_cfg))
3632                 return QL_STATUS_INVALID_PARAM;
3633
3634         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
3635                 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3636                         continue;
3637                 esw_cfg[i].pci_func = i;
3638                 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg[i]))
3639                         return QL_STATUS_INVALID_PARAM;
3640         }
3641         memcpy(buf, &esw_cfg, size);
3642
3643         return size;
3644 }
3645
3646 static int
3647 validate_npar_config(struct qlcnic_adapter *adapter,
3648                                 struct qlcnic_npar_func_cfg *np_cfg, int count)
3649 {
3650         u8 pci_func, i;
3651
3652         for (i = 0; i < count; i++) {
3653                 pci_func = np_cfg[i].pci_func;
3654                 if (pci_func >= QLCNIC_MAX_PCI_FUNC)
3655                         return QL_STATUS_INVALID_PARAM;
3656
3657                 if (adapter->npars[pci_func].type != QLCNIC_TYPE_NIC)
3658                         return QL_STATUS_INVALID_PARAM;
3659
3660                 if (!IS_VALID_BW(np_cfg[i].min_bw)
3661                                 || !IS_VALID_BW(np_cfg[i].max_bw)
3662                                 || !IS_VALID_RX_QUEUES(np_cfg[i].max_rx_queues)
3663                                 || !IS_VALID_TX_QUEUES(np_cfg[i].max_tx_queues))
3664                         return QL_STATUS_INVALID_PARAM;
3665         }
3666         return 0;
3667 }
3668
3669 static ssize_t
3670 qlcnic_sysfs_write_npar_config(struct file *file, struct kobject *kobj,
3671         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3672 {
3673         struct device *dev = container_of(kobj, struct device, kobj);
3674         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3675         struct qlcnic_info nic_info;
3676         struct qlcnic_npar_func_cfg *np_cfg;
3677         int i, count, rem, ret;
3678         u8 pci_func;
3679
3680         count   = size / sizeof(struct qlcnic_npar_func_cfg);
3681         rem     = size % sizeof(struct qlcnic_npar_func_cfg);
3682         if (rem)
3683                 return QL_STATUS_INVALID_PARAM;
3684
3685         np_cfg = (struct qlcnic_npar_func_cfg *) buf;
3686         ret = validate_npar_config(adapter, np_cfg, count);
3687         if (ret)
3688                 return ret;
3689
3690         for (i = 0; i < count ; i++) {
3691                 pci_func = np_cfg[i].pci_func;
3692                 ret = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
3693                 if (ret)
3694                         return ret;
3695                 nic_info.pci_func = pci_func;
3696                 nic_info.min_tx_bw = np_cfg[i].min_bw;
3697                 nic_info.max_tx_bw = np_cfg[i].max_bw;
3698                 ret = qlcnic_set_nic_info(adapter, &nic_info);
3699                 if (ret)
3700                         return ret;
3701                 adapter->npars[i].min_bw = nic_info.min_tx_bw;
3702                 adapter->npars[i].max_bw = nic_info.max_tx_bw;
3703         }
3704
3705         return size;
3706
3707 }
3708 static ssize_t
3709 qlcnic_sysfs_read_npar_config(struct file *file, struct kobject *kobj,
3710         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3711 {
3712         struct device *dev = container_of(kobj, struct device, kobj);
3713         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3714         struct qlcnic_info nic_info;
3715         struct qlcnic_npar_func_cfg np_cfg[QLCNIC_MAX_PCI_FUNC];
3716         int i, ret;
3717
3718         if (size != sizeof(np_cfg))
3719                 return QL_STATUS_INVALID_PARAM;
3720
3721         for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) {
3722                 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3723                         continue;
3724                 ret = qlcnic_get_nic_info(adapter, &nic_info, i);
3725                 if (ret)
3726                         return ret;
3727
3728                 np_cfg[i].pci_func = i;
3729                 np_cfg[i].op_mode = (u8)nic_info.op_mode;
3730                 np_cfg[i].port_num = nic_info.phys_port;
3731                 np_cfg[i].fw_capab = nic_info.capabilities;
3732                 np_cfg[i].min_bw = nic_info.min_tx_bw ;
3733                 np_cfg[i].max_bw = nic_info.max_tx_bw;
3734                 np_cfg[i].max_tx_queues = nic_info.max_tx_ques;
3735                 np_cfg[i].max_rx_queues = nic_info.max_rx_ques;
3736         }
3737         memcpy(buf, &np_cfg, size);
3738         return size;
3739 }
3740
3741 static ssize_t
3742 qlcnic_sysfs_get_port_stats(struct file *file, struct kobject *kobj,
3743         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3744 {
3745         struct device *dev = container_of(kobj, struct device, kobj);
3746         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3747         struct qlcnic_esw_statistics port_stats;
3748         int ret;
3749
3750         if (size != sizeof(struct qlcnic_esw_statistics))
3751                 return QL_STATUS_INVALID_PARAM;
3752
3753         if (offset >= QLCNIC_MAX_PCI_FUNC)
3754                 return QL_STATUS_INVALID_PARAM;
3755
3756         memset(&port_stats, 0, size);
3757         ret = qlcnic_get_port_stats(adapter, offset, QLCNIC_QUERY_RX_COUNTER,
3758                                                                 &port_stats.rx);
3759         if (ret)
3760                 return ret;
3761
3762         ret = qlcnic_get_port_stats(adapter, offset, QLCNIC_QUERY_TX_COUNTER,
3763                                                                 &port_stats.tx);
3764         if (ret)
3765                 return ret;
3766
3767         memcpy(buf, &port_stats, size);
3768         return size;
3769 }
3770
3771 static ssize_t
3772 qlcnic_sysfs_get_esw_stats(struct file *file, struct kobject *kobj,
3773         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3774 {
3775         struct device *dev = container_of(kobj, struct device, kobj);
3776         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3777         struct qlcnic_esw_statistics esw_stats;
3778         int ret;
3779
3780         if (size != sizeof(struct qlcnic_esw_statistics))
3781                 return QL_STATUS_INVALID_PARAM;
3782
3783         if (offset >= QLCNIC_NIU_MAX_XG_PORTS)
3784                 return QL_STATUS_INVALID_PARAM;
3785
3786         memset(&esw_stats, 0, size);
3787         ret = qlcnic_get_eswitch_stats(adapter, offset, QLCNIC_QUERY_RX_COUNTER,
3788                                                                 &esw_stats.rx);
3789         if (ret)
3790                 return ret;
3791
3792         ret = qlcnic_get_eswitch_stats(adapter, offset, QLCNIC_QUERY_TX_COUNTER,
3793                                                                 &esw_stats.tx);
3794         if (ret)
3795                 return ret;
3796
3797         memcpy(buf, &esw_stats, size);
3798         return size;
3799 }
3800
3801 static ssize_t
3802 qlcnic_sysfs_clear_esw_stats(struct file *file, struct kobject *kobj,
3803         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3804 {
3805         struct device *dev = container_of(kobj, struct device, kobj);
3806         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3807         int ret;
3808
3809         if (offset >= QLCNIC_NIU_MAX_XG_PORTS)
3810                 return QL_STATUS_INVALID_PARAM;
3811
3812         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_ESWITCH, offset,
3813                                                 QLCNIC_QUERY_RX_COUNTER);
3814         if (ret)
3815                 return ret;
3816
3817         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_ESWITCH, offset,
3818                                                 QLCNIC_QUERY_TX_COUNTER);
3819         if (ret)
3820                 return ret;
3821
3822         return size;
3823 }
3824
3825 static ssize_t
3826 qlcnic_sysfs_clear_port_stats(struct file *file, struct kobject *kobj,
3827         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3828 {
3829
3830         struct device *dev = container_of(kobj, struct device, kobj);
3831         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3832         int ret;
3833
3834         if (offset >= QLCNIC_MAX_PCI_FUNC)
3835                 return QL_STATUS_INVALID_PARAM;
3836
3837         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_PORT, offset,
3838                                                 QLCNIC_QUERY_RX_COUNTER);
3839         if (ret)
3840                 return ret;
3841
3842         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_PORT, offset,
3843                                                 QLCNIC_QUERY_TX_COUNTER);
3844         if (ret)
3845                 return ret;
3846
3847         return size;
3848 }
3849
3850 static ssize_t
3851 qlcnic_sysfs_read_pci_config(struct file *file, struct kobject *kobj,
3852         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3853 {
3854         struct device *dev = container_of(kobj, struct device, kobj);
3855         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3856         struct qlcnic_pci_func_cfg pci_cfg[QLCNIC_MAX_PCI_FUNC];
3857         struct qlcnic_pci_info *pci_info;
3858         int i, ret;
3859
3860         if (size != sizeof(pci_cfg))
3861                 return QL_STATUS_INVALID_PARAM;
3862
3863         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
3864         if (!pci_info)
3865                 return -ENOMEM;
3866
3867         ret = qlcnic_get_pci_info(adapter, pci_info);
3868         if (ret) {
3869                 kfree(pci_info);
3870                 return ret;
3871         }
3872
3873         for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) {
3874                 pci_cfg[i].pci_func = pci_info[i].id;
3875                 pci_cfg[i].func_type = pci_info[i].type;
3876                 pci_cfg[i].port_num = pci_info[i].default_port;
3877                 pci_cfg[i].min_bw = pci_info[i].tx_min_bw;
3878                 pci_cfg[i].max_bw = pci_info[i].tx_max_bw;
3879                 memcpy(&pci_cfg[i].def_mac_addr, &pci_info[i].mac, ETH_ALEN);
3880         }
3881         memcpy(buf, &pci_cfg, size);
3882         kfree(pci_info);
3883         return size;
3884 }
3885 static struct bin_attribute bin_attr_npar_config = {
3886         .attr = {.name = "npar_config", .mode = (S_IRUGO | S_IWUSR)},
3887         .size = 0,
3888         .read = qlcnic_sysfs_read_npar_config,
3889         .write = qlcnic_sysfs_write_npar_config,
3890 };
3891
3892 static struct bin_attribute bin_attr_pci_config = {
3893         .attr = {.name = "pci_config", .mode = (S_IRUGO | S_IWUSR)},
3894         .size = 0,
3895         .read = qlcnic_sysfs_read_pci_config,
3896         .write = NULL,
3897 };
3898
3899 static struct bin_attribute bin_attr_port_stats = {
3900         .attr = {.name = "port_stats", .mode = (S_IRUGO | S_IWUSR)},
3901         .size = 0,
3902         .read = qlcnic_sysfs_get_port_stats,
3903         .write = qlcnic_sysfs_clear_port_stats,
3904 };
3905
3906 static struct bin_attribute bin_attr_esw_stats = {
3907         .attr = {.name = "esw_stats", .mode = (S_IRUGO | S_IWUSR)},
3908         .size = 0,
3909         .read = qlcnic_sysfs_get_esw_stats,
3910         .write = qlcnic_sysfs_clear_esw_stats,
3911 };
3912
3913 static struct bin_attribute bin_attr_esw_config = {
3914         .attr = {.name = "esw_config", .mode = (S_IRUGO | S_IWUSR)},
3915         .size = 0,
3916         .read = qlcnic_sysfs_read_esw_config,
3917         .write = qlcnic_sysfs_write_esw_config,
3918 };
3919
3920 static struct bin_attribute bin_attr_pm_config = {
3921         .attr = {.name = "pm_config", .mode = (S_IRUGO | S_IWUSR)},
3922         .size = 0,
3923         .read = qlcnic_sysfs_read_pm_config,
3924         .write = qlcnic_sysfs_write_pm_config,
3925 };
3926
3927 static void
3928 qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter)
3929 {
3930         struct device *dev = &adapter->pdev->dev;
3931
3932         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
3933                 if (device_create_file(dev, &dev_attr_bridged_mode))
3934                         dev_warn(dev,
3935                                 "failed to create bridged_mode sysfs entry\n");
3936 }
3937
3938 static void
3939 qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter)
3940 {
3941         struct device *dev = &adapter->pdev->dev;
3942
3943         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
3944                 device_remove_file(dev, &dev_attr_bridged_mode);
3945 }
3946
3947 static void
3948 qlcnic_create_diag_entries(struct qlcnic_adapter *adapter)
3949 {
3950         struct device *dev = &adapter->pdev->dev;
3951
3952         if (device_create_bin_file(dev, &bin_attr_port_stats))
3953                 dev_info(dev, "failed to create port stats sysfs entry");
3954
3955         if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
3956                 return;
3957         if (device_create_file(dev, &dev_attr_diag_mode))
3958                 dev_info(dev, "failed to create diag_mode sysfs entry\n");
3959         if (device_create_bin_file(dev, &bin_attr_crb))
3960                 dev_info(dev, "failed to create crb sysfs entry\n");
3961         if (device_create_bin_file(dev, &bin_attr_mem))
3962                 dev_info(dev, "failed to create mem sysfs entry\n");
3963         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
3964                 return;
3965         if (device_create_bin_file(dev, &bin_attr_esw_config))
3966                 dev_info(dev, "failed to create esw config sysfs entry");
3967         if (adapter->op_mode != QLCNIC_MGMT_FUNC)
3968                 return;
3969         if (device_create_bin_file(dev, &bin_attr_pci_config))
3970                 dev_info(dev, "failed to create pci config sysfs entry");
3971         if (device_create_bin_file(dev, &bin_attr_npar_config))
3972                 dev_info(dev, "failed to create npar config sysfs entry");
3973         if (device_create_bin_file(dev, &bin_attr_pm_config))
3974                 dev_info(dev, "failed to create pm config sysfs entry");
3975         if (device_create_bin_file(dev, &bin_attr_esw_stats))
3976                 dev_info(dev, "failed to create eswitch stats sysfs entry");
3977 }
3978
3979 static void
3980 qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter)
3981 {
3982         struct device *dev = &adapter->pdev->dev;
3983
3984         device_remove_bin_file(dev, &bin_attr_port_stats);
3985
3986         if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
3987                 return;
3988         device_remove_file(dev, &dev_attr_diag_mode);
3989         device_remove_bin_file(dev, &bin_attr_crb);
3990         device_remove_bin_file(dev, &bin_attr_mem);
3991         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
3992                 return;
3993         device_remove_bin_file(dev, &bin_attr_esw_config);
3994         if (adapter->op_mode != QLCNIC_MGMT_FUNC)
3995                 return;
3996         device_remove_bin_file(dev, &bin_attr_pci_config);
3997         device_remove_bin_file(dev, &bin_attr_npar_config);
3998         device_remove_bin_file(dev, &bin_attr_pm_config);
3999         device_remove_bin_file(dev, &bin_attr_esw_stats);
4000 }
4001
4002 #ifdef CONFIG_INET
4003
4004 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4005
4006 static void
4007 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4008                         struct net_device *dev, unsigned long event)
4009 {
4010         struct in_device *indev;
4011
4012         indev = in_dev_get(dev);
4013         if (!indev)
4014                 return;
4015
4016         for_ifa(indev) {
4017                 switch (event) {
4018                 case NETDEV_UP:
4019                         qlcnic_config_ipaddr(adapter,
4020                                         ifa->ifa_address, QLCNIC_IP_UP);
4021                         break;
4022                 case NETDEV_DOWN:
4023                         qlcnic_config_ipaddr(adapter,
4024                                         ifa->ifa_address, QLCNIC_IP_DOWN);
4025                         break;
4026                 default:
4027                         break;
4028                 }
4029         } endfor_ifa(indev);
4030
4031         in_dev_put(indev);
4032 }
4033
4034 static void
4035 qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4036 {
4037         struct qlcnic_adapter *adapter = netdev_priv(netdev);
4038         struct net_device *dev;
4039         u16 vid;
4040
4041         qlcnic_config_indev_addr(adapter, netdev, event);
4042
4043         if (!adapter->vlgrp)
4044                 return;
4045
4046         for (vid = 0; vid < VLAN_N_VID; vid++) {
4047                 dev = vlan_group_get_device(adapter->vlgrp, vid);
4048                 if (!dev)
4049                         continue;
4050
4051                 qlcnic_config_indev_addr(adapter, dev, event);
4052         }
4053 }
4054
4055 static int qlcnic_netdev_event(struct notifier_block *this,
4056                                  unsigned long event, void *ptr)
4057 {
4058         struct qlcnic_adapter *adapter;
4059         struct net_device *dev = (struct net_device *)ptr;
4060
4061 recheck:
4062         if (dev == NULL)
4063                 goto done;
4064
4065         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4066                 dev = vlan_dev_real_dev(dev);
4067                 goto recheck;
4068         }
4069
4070         if (!is_qlcnic_netdev(dev))
4071                 goto done;
4072
4073         adapter = netdev_priv(dev);
4074
4075         if (!adapter)
4076                 goto done;
4077
4078         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4079                 goto done;
4080
4081         qlcnic_config_indev_addr(adapter, dev, event);
4082 done:
4083         return NOTIFY_DONE;
4084 }
4085
4086 static int
4087 qlcnic_inetaddr_event(struct notifier_block *this,
4088                 unsigned long event, void *ptr)
4089 {
4090         struct qlcnic_adapter *adapter;
4091         struct net_device *dev;
4092
4093         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4094
4095         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
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         switch (event) {
4118         case NETDEV_UP:
4119                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4120                 break;
4121         case NETDEV_DOWN:
4122                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4123                 break;
4124         default:
4125                 break;
4126         }
4127
4128 done:
4129         return NOTIFY_DONE;
4130 }
4131
4132 static struct notifier_block    qlcnic_netdev_cb = {
4133         .notifier_call = qlcnic_netdev_event,
4134 };
4135
4136 static struct notifier_block qlcnic_inetaddr_cb = {
4137         .notifier_call = qlcnic_inetaddr_event,
4138 };
4139 #else
4140 static void
4141 qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4142 { }
4143 #endif
4144 static struct pci_error_handlers qlcnic_err_handler = {
4145         .error_detected = qlcnic_io_error_detected,
4146         .slot_reset = qlcnic_io_slot_reset,
4147         .resume = qlcnic_io_resume,
4148 };
4149
4150 static struct pci_driver qlcnic_driver = {
4151         .name = qlcnic_driver_name,
4152         .id_table = qlcnic_pci_tbl,
4153         .probe = qlcnic_probe,
4154         .remove = __devexit_p(qlcnic_remove),
4155 #ifdef CONFIG_PM
4156         .suspend = qlcnic_suspend,
4157         .resume = qlcnic_resume,
4158 #endif
4159         .shutdown = qlcnic_shutdown,
4160         .err_handler = &qlcnic_err_handler
4161
4162 };
4163
4164 static int __init qlcnic_init_module(void)
4165 {
4166         int ret;
4167
4168         printk(KERN_INFO "%s\n", qlcnic_driver_string);
4169
4170         qlcnic_wq = create_singlethread_workqueue("qlcnic");
4171         if (qlcnic_wq == NULL) {
4172                 printk(KERN_ERR "qlcnic: cannot create workqueue\n");
4173                 return -ENOMEM;
4174         }
4175
4176 #ifdef CONFIG_INET
4177         register_netdevice_notifier(&qlcnic_netdev_cb);
4178         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4179 #endif
4180
4181         ret = pci_register_driver(&qlcnic_driver);
4182         if (ret) {
4183 #ifdef CONFIG_INET
4184                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4185                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4186 #endif
4187                 destroy_workqueue(qlcnic_wq);
4188         }
4189
4190         return ret;
4191 }
4192
4193 module_init(qlcnic_init_module);
4194
4195 static void __exit qlcnic_exit_module(void)
4196 {
4197
4198         pci_unregister_driver(&qlcnic_driver);
4199
4200 #ifdef CONFIG_INET
4201         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4202         unregister_netdevice_notifier(&qlcnic_netdev_cb);
4203 #endif
4204         destroy_workqueue(qlcnic_wq);
4205 }
4206
4207 module_exit(qlcnic_exit_module);