drivers/net/qlcnic/qlcnic_main.c

   1 /*
   2  * QLogic qlcnic NIC Driver
   3  * Copyright (c)  2009-2010 QLogic Corporation
   4  *
   5  * See LICENSE.qlcnic for copyright and licensing details.
   6  */
   7
   8 #include <linux/slab.h>
   9 #include <linux/vmalloc.h>
  10 #include <linux/interrupt.h>
  11
  12 #include "qlcnic.h"
  13
  14 #include <linux/swab.h>
  15 #include <linux/dma-mapping.h>
  16 #include <linux/if_vlan.h>
  17 #include <net/ip.h>
  18 #include <linux/ipv6.h>
  19 #include <linux/inetdevice.h>
  20 #include <linux/sysfs.h>
  21 #include <linux/aer.h>
  22
  23 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
  24 MODULE_LICENSE("GPL");
  25 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
  26 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
  27
  28 char qlcnic_driver_name[] = "qlcnic";
  29 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
  30         "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
  31
  32 static struct workqueue_struct *qlcnic_wq;
  33 static int qlcnic_mac_learn;
  34 module_param(qlcnic_mac_learn, int, 0444);
  35 MODULE_PARM_DESC(qlcnic_mac_learn, "Mac Filter (0=disabled, 1=enabled)");
  36
  37 static int use_msi = 1;
  38 module_param(use_msi, int, 0444);
  39 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled");
  40
  41 static int use_msi_x = 1;
  42 module_param(use_msi_x, int, 0444);
  43 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled");
  44
  45 static int auto_fw_reset = 1;
  46 module_param(auto_fw_reset, int, 0644);
  47 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled");
  48
  49 static int load_fw_file;
  50 module_param(load_fw_file, int, 0444);
  51 MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file");
  52
  53 static int qlcnic_config_npars;
  54 module_param(qlcnic_config_npars, int, 0444);
  55 MODULE_PARM_DESC(qlcnic_config_npars, "Configure NPARs (0=disabled, 1=enabled");
  56
  57 static int __devinit qlcnic_probe(struct pci_dev *pdev,
  58                 const struct pci_device_id *ent);
  59 static void __devexit qlcnic_remove(struct pci_dev *pdev);
  60 static int qlcnic_open(struct net_device *netdev);
  61 static int qlcnic_close(struct net_device *netdev);
  62 static void qlcnic_tx_timeout(struct net_device *netdev);
  63 static void qlcnic_attach_work(struct work_struct *work);
  64 static void qlcnic_fwinit_work(struct work_struct *work);
  65 static void qlcnic_fw_poll_work(struct work_struct *work);
  66 static void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
  67                 work_func_t func, int delay);
  68 static void qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter);
  69 static int qlcnic_poll(struct napi_struct *napi, int budget);
  70 static int qlcnic_rx_poll(struct napi_struct *napi, int budget);
  71 #ifdef CONFIG_NET_POLL_CONTROLLER
  72 static void qlcnic_poll_controller(struct net_device *netdev);
  73 #endif
  74
  75 static void qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter);
  76 static void qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter);
  77 static void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter);
  78 static void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter);
  79
  80 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
  81 static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8);
  82 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
  83
  84 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
  85 static irqreturn_t qlcnic_intr(int irq, void *data);
  86 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
  87 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
  88
  89 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
  90 static void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long);
  91 static int qlcnic_start_firmware(struct qlcnic_adapter *);
  92
  93 static void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter);
  94 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
  95 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
  96 static int qlcnicvf_config_led(struct qlcnic_adapter *, u32, u32);
  97 static int qlcnicvf_config_bridged_mode(struct qlcnic_adapter *, u32);
  98 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
  99 static void qlcnic_set_netdev_features(struct qlcnic_adapter *,
 100                                 struct qlcnic_esw_func_cfg *);
 101 /*  PCI Device ID Table  */
 102 #define ENTRY(device) \
 103         {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
 104         .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
 105
 106 #define PCI_DEVICE_ID_QLOGIC_QLE824X  0x8020
 107
 108 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
 109         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
 110         {0,}
 111 };
 112
 113 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
 114
 115
 116 void
 117 qlcnic_update_cmd_producer(struct qlcnic_adapter *adapter,
 118                 struct qlcnic_host_tx_ring *tx_ring)
 119 {
 120         writel(tx_ring->producer, tx_ring->crb_cmd_producer);
 121 }
 122
 123 static const u32 msi_tgt_status[8] = {
 124         ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
 125         ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
 126         ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
 127         ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
 128 };
 129
 130 static const
 131 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
 132
 133 static inline void qlcnic_disable_int(struct qlcnic_host_sds_ring *sds_ring)
 134 {
 135         writel(0, sds_ring->crb_intr_mask);
 136 }
 137
 138 static inline void qlcnic_enable_int(struct qlcnic_host_sds_ring *sds_ring)
 139 {
 140         struct qlcnic_adapter *adapter = sds_ring->adapter;
 141
 142         writel(0x1, sds_ring->crb_intr_mask);
 143
 144         if (!QLCNIC_IS_MSI_FAMILY(adapter))
 145                 writel(0xfbff, adapter->tgt_mask_reg);
 146 }
 147
 148 static int
 149 qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
 150 {
 151         int size = sizeof(struct qlcnic_host_sds_ring) * count;
 152
 153         recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
 154
 155         return recv_ctx->sds_rings == NULL;
 156 }
 157
 158 static void
 159 qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
 160 {
 161         if (recv_ctx->sds_rings != NULL)
 162                 kfree(recv_ctx->sds_rings);
 163
 164         recv_ctx->sds_rings = NULL;
 165 }
 166
 167 static int
 168 qlcnic_napi_add(struct qlcnic_adapter *adapter, struct net_device *netdev)
 169 {
 170         int ring;
 171         struct qlcnic_host_sds_ring *sds_ring;
 172         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
 173
 174         if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
 175                 return -ENOMEM;
 176
 177         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 178                 sds_ring = &recv_ctx->sds_rings[ring];
 179
 180                 if (ring == adapter->max_sds_rings - 1)
 181                         netif_napi_add(netdev, &sds_ring->napi, qlcnic_poll,
 182                                 QLCNIC_NETDEV_WEIGHT/adapter->max_sds_rings);
 183                 else
 184                         netif_napi_add(netdev, &sds_ring->napi,
 185                                 qlcnic_rx_poll, QLCNIC_NETDEV_WEIGHT*2);
 186         }
 187
 188         return 0;
 189 }
 190
 191 static void
 192 qlcnic_napi_del(struct qlcnic_adapter *adapter)
 193 {
 194         int ring;
 195         struct qlcnic_host_sds_ring *sds_ring;
 196         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
 197
 198         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 199                 sds_ring = &recv_ctx->sds_rings[ring];
 200                 netif_napi_del(&sds_ring->napi);
 201         }
 202
 203         qlcnic_free_sds_rings(&adapter->recv_ctx);
 204 }
 205
 206 static void
 207 qlcnic_napi_enable(struct qlcnic_adapter *adapter)
 208 {
 209         int ring;
 210         struct qlcnic_host_sds_ring *sds_ring;
 211         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
 212
 213         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
 214                 return;
 215
 216         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 217                 sds_ring = &recv_ctx->sds_rings[ring];
 218                 napi_enable(&sds_ring->napi);
 219                 qlcnic_enable_int(sds_ring);
 220         }
 221 }
 222
 223 static void
 224 qlcnic_napi_disable(struct qlcnic_adapter *adapter)
 225 {
 226         int ring;
 227         struct qlcnic_host_sds_ring *sds_ring;
 228         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
 229
 230         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
 231                 return;
 232
 233         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 234                 sds_ring = &recv_ctx->sds_rings[ring];
 235                 qlcnic_disable_int(sds_ring);
 236                 napi_synchronize(&sds_ring->napi);
 237                 napi_disable(&sds_ring->napi);
 238         }
 239 }
 240
 241 static void qlcnic_clear_stats(struct qlcnic_adapter *adapter)
 242 {
 243         memset(&adapter->stats, 0, sizeof(adapter->stats));
 244 }
 245
 246 static void qlcnic_set_msix_bit(struct pci_dev *pdev, int enable)
 247 {
 248         u32 control;
 249         int pos;
 250
 251         pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
 252         if (pos) {
 253                 pci_read_config_dword(pdev, pos, &control);
 254                 if (enable)
 255                         control |= PCI_MSIX_FLAGS_ENABLE;
 256                 else
 257                         control = 0;
 258                 pci_write_config_dword(pdev, pos, control);
 259         }
 260 }
 261
 262 static void qlcnic_init_msix_entries(struct qlcnic_adapter *adapter, int count)
 263 {
 264         int i;
 265
 266         for (i = 0; i < count; i++)
 267                 adapter->msix_entries[i].entry = i;
 268 }
 269
 270 static int
 271 qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
 272 {
 273         u8 mac_addr[ETH_ALEN];
 274         struct net_device *netdev = adapter->netdev;
 275         struct pci_dev *pdev = adapter->pdev;
 276
 277         if (qlcnic_get_mac_address(adapter, mac_addr) != 0)
 278                 return -EIO;
 279
 280         memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
 281         memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
 282         memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
 283
 284         /* set station address */
 285
 286         if (!is_valid_ether_addr(netdev->perm_addr))
 287                 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
 288                                         netdev->dev_addr);
 289
 290         return 0;
 291 }
 292
 293 static int qlcnic_set_mac(struct net_device *netdev, void *p)
 294 {
 295         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 296         struct sockaddr *addr = p;
 297
 298         if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
 299                 return -EOPNOTSUPP;
 300
 301         if (!is_valid_ether_addr(addr->sa_data))
 302                 return -EINVAL;
 303
 304         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 305                 netif_device_detach(netdev);
 306                 qlcnic_napi_disable(adapter);
 307         }
 308
 309         memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
 310         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 311         qlcnic_set_multi(adapter->netdev);
 312
 313         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 314                 netif_device_attach(netdev);
 315                 qlcnic_napi_enable(adapter);
 316         }
 317         return 0;
 318 }
 319
 320 static void qlcnic_vlan_rx_register(struct net_device *netdev,
 321                 struct vlan_group *grp)
 322 {
 323         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 324         adapter->vlgrp = grp;
 325 }
 326
 327 static const struct net_device_ops qlcnic_netdev_ops = {
 328         .ndo_open          = qlcnic_open,
 329         .ndo_stop          = qlcnic_close,
 330         .ndo_start_xmit    = qlcnic_xmit_frame,
 331         .ndo_get_stats     = qlcnic_get_stats,
 332         .ndo_validate_addr = eth_validate_addr,
 333         .ndo_set_multicast_list = qlcnic_set_multi,
 334         .ndo_set_mac_address    = qlcnic_set_mac,
 335         .ndo_change_mtu    = qlcnic_change_mtu,
 336         .ndo_tx_timeout    = qlcnic_tx_timeout,
 337         .ndo_vlan_rx_register = qlcnic_vlan_rx_register,
 338 #ifdef CONFIG_NET_POLL_CONTROLLER
 339         .ndo_poll_controller = qlcnic_poll_controller,
 340 #endif
 341 };
 342
 343 static struct qlcnic_nic_template qlcnic_ops = {
 344         .config_bridged_mode = qlcnic_config_bridged_mode,
 345         .config_led = qlcnic_config_led,
 346         .start_firmware = qlcnic_start_firmware
 347 };
 348
 349 static struct qlcnic_nic_template qlcnic_vf_ops = {
 350         .config_bridged_mode = qlcnicvf_config_bridged_mode,
 351         .config_led = qlcnicvf_config_led,
 352         .start_firmware = qlcnicvf_start_firmware
 353 };
 354
 355 static void
 356 qlcnic_setup_intr(struct qlcnic_adapter *adapter)
 357 {
 358         const struct qlcnic_legacy_intr_set *legacy_intrp;
 359         struct pci_dev *pdev = adapter->pdev;
 360         int err, num_msix;
 361
 362         if (adapter->rss_supported) {
 363                 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
 364                         MSIX_ENTRIES_PER_ADAPTER : 2;
 365         } else
 366                 num_msix = 1;
 367
 368         adapter->max_sds_rings = 1;
 369
 370         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 371
 372         legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
 373
 374         adapter->int_vec_bit = legacy_intrp->int_vec_bit;
 375         adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
 376                         legacy_intrp->tgt_status_reg);
 377         adapter->tgt_mask_reg = qlcnic_get_ioaddr(adapter,
 378                         legacy_intrp->tgt_mask_reg);
 379         adapter->isr_int_vec = qlcnic_get_ioaddr(adapter, ISR_INT_VECTOR);
 380
 381         adapter->crb_int_state_reg = qlcnic_get_ioaddr(adapter,
 382                         ISR_INT_STATE_REG);
 383
 384         qlcnic_set_msix_bit(pdev, 0);
 385
 386         if (adapter->msix_supported) {
 387
 388                 qlcnic_init_msix_entries(adapter, num_msix);
 389                 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
 390                 if (err == 0) {
 391                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 392                         qlcnic_set_msix_bit(pdev, 1);
 393
 394                         if (adapter->rss_supported)
 395                                 adapter->max_sds_rings = num_msix;
 396
 397                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 398                         return;
 399                 }
 400
 401                 if (err > 0)
 402                         pci_disable_msix(pdev);
 403
 404                 /* fall through for msi */
 405         }
 406
 407         if (use_msi && !pci_enable_msi(pdev)) {
 408                 adapter->flags |= QLCNIC_MSI_ENABLED;
 409                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
 410                                 msi_tgt_status[adapter->ahw.pci_func]);
 411                 dev_info(&pdev->dev, "using msi interrupts\n");
 412                 adapter->msix_entries[0].vector = pdev->irq;
 413                 return;
 414         }
 415
 416         dev_info(&pdev->dev, "using legacy interrupts\n");
 417         adapter->msix_entries[0].vector = pdev->irq;
 418 }
 419
 420 static void
 421 qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 422 {
 423         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 424                 pci_disable_msix(adapter->pdev);
 425         if (adapter->flags & QLCNIC_MSI_ENABLED)
 426                 pci_disable_msi(adapter->pdev);
 427 }
 428
 429 static void
 430 qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter)
 431 {
 432         if (adapter->ahw.pci_base0 != NULL)
 433                 iounmap(adapter->ahw.pci_base0);
 434 }
 435
 436 static int
 437 qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 438 {
 439         struct qlcnic_pci_info *pci_info;
 440         int i, ret = 0;
 441         u8 pfn;
 442
 443         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 444         if (!pci_info)
 445                 return -ENOMEM;
 446
 447         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
 448                                 QLCNIC_MAX_PCI_FUNC, GFP_KERNEL);
 449         if (!adapter->npars) {
 450                 ret = -ENOMEM;
 451                 goto err_pci_info;
 452         }
 453
 454         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
 455                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
 456         if (!adapter->eswitch) {
 457                 ret = -ENOMEM;
 458                 goto err_npars;
 459         }
 460
 461         ret = qlcnic_get_pci_info(adapter, pci_info);
 462         if (ret)
 463                 goto err_eswitch;
 464
 465         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 466                 pfn = pci_info[i].id;
 467                 if (pfn > QLCNIC_MAX_PCI_FUNC)
 468                         return QL_STATUS_INVALID_PARAM;
 469                 adapter->npars[pfn].active = (u8)pci_info[i].active;
 470                 adapter->npars[pfn].type = (u8)pci_info[i].type;
 471                 adapter->npars[pfn].phy_port = (u8)pci_info[i].default_port;
 472                 adapter->npars[pfn].min_bw = pci_info[i].tx_min_bw;
 473                 adapter->npars[pfn].max_bw = pci_info[i].tx_max_bw;
 474         }
 475
 476         for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
 477                 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
 478
 479         kfree(pci_info);
 480         return 0;
 481
 482 err_eswitch:
 483         kfree(adapter->eswitch);
 484         adapter->eswitch = NULL;
 485 err_npars:
 486         kfree(adapter->npars);
 487         adapter->npars = NULL;
 488 err_pci_info:
 489         kfree(pci_info);
 490
 491         return ret;
 492 }
 493
 494 static int
 495 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
 496 {
 497         u8 id;
 498         u32 ref_count;
 499         int i, ret = 1;
 500         u32 data = QLCNIC_MGMT_FUNC;
 501         void __iomem *priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE;
 502
 503         /* If other drivers are not in use set their privilege level */
 504         ref_count = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
 505         ret = qlcnic_api_lock(adapter);
 506         if (ret)
 507                 goto err_lock;
 508
 509         if (qlcnic_config_npars) {
 510                 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 511                         id = i;
 512                         if (adapter->npars[i].type != QLCNIC_TYPE_NIC ||
 513                                 id == adapter->ahw.pci_func)
 514                                 continue;
 515                         data |= (qlcnic_config_npars &
 516                                         QLC_DEV_SET_DRV(0xf, id));
 517                 }
 518         } else {
 519                 data = readl(priv_op);
 520                 data = (data & ~QLC_DEV_SET_DRV(0xf, adapter->ahw.pci_func)) |
 521                         (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
 522                         adapter->ahw.pci_func));
 523         }
 524         writel(data, priv_op);
 525         qlcnic_api_unlock(adapter);
 526 err_lock:
 527         return ret;
 528 }
 529
 530 static void
 531 qlcnic_check_vf(struct qlcnic_adapter *adapter)
 532 {
 533         void __iomem *msix_base_addr;
 534         void __iomem *priv_op;
 535         u32 func;
 536         u32 msix_base;
 537         u32 op_mode, priv_level;
 538
 539         /* Determine FW API version */
 540         adapter->fw_hal_version = readl(adapter->ahw.pci_base0 + QLCNIC_FW_API);
 541
 542         /* Find PCI function number */
 543         pci_read_config_dword(adapter->pdev, QLCNIC_MSIX_TABLE_OFFSET, &func);
 544         msix_base_addr = adapter->ahw.pci_base0 + QLCNIC_MSIX_BASE;
 545         msix_base = readl(msix_base_addr);
 546         func = (func - msix_base)/QLCNIC_MSIX_TBL_PGSIZE;
 547         adapter->ahw.pci_func = func;
 548
 549         /* Determine function privilege level */
 550         priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE;
 551         op_mode = readl(priv_op);
 552         if (op_mode == QLC_DEV_DRV_DEFAULT)
 553                 priv_level = QLCNIC_MGMT_FUNC;
 554         else
 555                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw.pci_func);
 556
 557         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
 558                 adapter->op_mode = QLCNIC_NON_PRIV_FUNC;
 559                 dev_info(&adapter->pdev->dev,
 560                         "HAL Version: %d Non Privileged function\n",
 561                         adapter->fw_hal_version);
 562                 adapter->nic_ops = &qlcnic_vf_ops;
 563         } else
 564                 adapter->nic_ops = &qlcnic_ops;
 565 }
 566
 567 static int
 568 qlcnic_setup_pci_map(struct qlcnic_adapter *adapter)
 569 {
 570         void __iomem *mem_ptr0 = NULL;
 571         resource_size_t mem_base;
 572         unsigned long mem_len, pci_len0 = 0;
 573
 574         struct pci_dev *pdev = adapter->pdev;
 575
 576         /* remap phys address */
 577         mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
 578         mem_len = pci_resource_len(pdev, 0);
 579
 580         if (mem_len == QLCNIC_PCI_2MB_SIZE) {
 581
 582                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
 583                 if (mem_ptr0 == NULL) {
 584                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
 585                         return -EIO;
 586                 }
 587                 pci_len0 = mem_len;
 588         } else {
 589                 return -EIO;
 590         }
 591
 592         dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
 593
 594         adapter->ahw.pci_base0 = mem_ptr0;
 595         adapter->ahw.pci_len0 = pci_len0;
 596
 597         qlcnic_check_vf(adapter);
 598
 599         adapter->ahw.ocm_win_crb = qlcnic_get_ioaddr(adapter,
 600                 QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(adapter->ahw.pci_func)));
 601
 602         return 0;
 603 }
 604
 605 static void get_brd_name(struct qlcnic_adapter *adapter, char *name)
 606 {
 607         struct pci_dev *pdev = adapter->pdev;
 608         int i, found = 0;
 609
 610         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
 611                 if (qlcnic_boards[i].vendor == pdev->vendor &&
 612                         qlcnic_boards[i].device == pdev->device &&
 613                         qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
 614                         qlcnic_boards[i].sub_device == pdev->subsystem_device) {
 615                                 sprintf(name, "%pM: %s" ,
 616                                         adapter->mac_addr,
 617                                         qlcnic_boards[i].short_name);
 618                                 found = 1;
 619                                 break;
 620                 }
 621
 622         }
 623
 624         if (!found)
 625                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
 626 }
 627
 628 static void
 629 qlcnic_check_options(struct qlcnic_adapter *adapter)
 630 {
 631         u32 fw_major, fw_minor, fw_build;
 632         struct pci_dev *pdev = adapter->pdev;
 633
 634         fw_major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
 635         fw_minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
 636         fw_build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
 637
 638         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
 639
 640         dev_info(&pdev->dev, "firmware v%d.%d.%d\n",
 641                         fw_major, fw_minor, fw_build);
 642         if (adapter->ahw.port_type == QLCNIC_XGBE) {
 643                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 644                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
 645                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
 646                 } else {
 647                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
 648                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
 649                 }
 650
 651                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 652                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 653
 654         } else if (adapter->ahw.port_type == QLCNIC_GBE) {
 655                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
 656                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 657                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 658                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
 659         }
 660
 661         adapter->msix_supported = !!use_msi_x;
 662         adapter->rss_supported = !!use_msi_x;
 663
 664         adapter->num_txd = MAX_CMD_DESCRIPTORS;
 665
 666         adapter->max_rds_rings = MAX_RDS_RINGS;
 667 }
 668
 669 static int
 670 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
 671 {
 672         int err;
 673         struct qlcnic_info nic_info;
 674
 675         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw.pci_func);
 676         if (err)
 677                 return err;
 678
 679         adapter->physical_port = (u8)nic_info.phys_port;
 680         adapter->switch_mode = nic_info.switch_mode;
 681         adapter->max_tx_ques = nic_info.max_tx_ques;
 682         adapter->max_rx_ques = nic_info.max_rx_ques;
 683         adapter->capabilities = nic_info.capabilities;
 684         adapter->max_mac_filters = nic_info.max_mac_filters;
 685         adapter->max_mtu = nic_info.max_mtu;
 686
 687         if (adapter->capabilities & BIT_6)
 688                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
 689         else
 690                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
 691
 692         return err;
 693 }
 694
 695 static void
 696 qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
 697                 struct qlcnic_esw_func_cfg *esw_cfg)
 698 {
 699         if (esw_cfg->discard_tagged)
 700                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
 701         else
 702                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
 703
 704         if (esw_cfg->vlan_id)
 705                 adapter->pvid = esw_cfg->vlan_id;
 706         else
 707                 adapter->pvid = 0;
 708 }
 709
 710 static void
 711 qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
 712                 struct qlcnic_esw_func_cfg *esw_cfg)
 713 {
 714         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
 715                                 QLCNIC_PROMISC_DISABLED);
 716
 717         if (esw_cfg->mac_anti_spoof)
 718                 adapter->flags |= QLCNIC_MACSPOOF;
 719
 720         if (!esw_cfg->mac_override)
 721                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
 722
 723         if (!esw_cfg->promisc_mode)
 724                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
 725
 726         qlcnic_set_netdev_features(adapter, esw_cfg);
 727 }
 728
 729 static int
 730 qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
 731 {
 732         struct qlcnic_esw_func_cfg esw_cfg;
 733
 734         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
 735                 return 0;
 736
 737         esw_cfg.pci_func = adapter->ahw.pci_func;
 738         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
 739                         return -EIO;
 740         qlcnic_set_vlan_config(adapter, &esw_cfg);
 741         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
 742
 743         return 0;
 744 }
 745
 746 static void
 747 qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
 748                 struct qlcnic_esw_func_cfg *esw_cfg)
 749 {
 750         struct net_device *netdev = adapter->netdev;
 751         unsigned long features, vlan_features;
 752
 753         features = (NETIF_F_SG | NETIF_F_IP_CSUM |
 754                         NETIF_F_IPV6_CSUM | NETIF_F_GRO);
 755         vlan_features = (NETIF_F_SG | NETIF_F_IP_CSUM |
 756                         NETIF_F_IPV6_CSUM);
 757
 758         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO) {
 759                 features |= (NETIF_F_TSO | NETIF_F_TSO6);
 760                 vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
 761         }
 762         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
 763                 features |= NETIF_F_LRO;
 764
 765         if (esw_cfg->offload_flags & BIT_0) {
 766                 netdev->features |= features;
 767                 adapter->rx_csum = 1;
 768                 if (!(esw_cfg->offload_flags & BIT_1))
 769                         netdev->features &= ~NETIF_F_TSO;
 770                 if (!(esw_cfg->offload_flags & BIT_2))
 771                         netdev->features &= ~NETIF_F_TSO6;
 772         } else {
 773                 netdev->features &= ~features;
 774                 adapter->rx_csum = 0;
 775         }
 776
 777         netdev->vlan_features = (features & vlan_features);
 778 }
 779
 780 static int
 781 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
 782 {
 783         void __iomem *priv_op;
 784         u32 op_mode, priv_level;
 785         int err = 0;
 786
 787         err = qlcnic_initialize_nic(adapter);
 788         if (err)
 789                 return err;
 790
 791         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
 792                 return 0;
 793
 794         priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE;
 795         op_mode = readl(priv_op);
 796         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw.pci_func);
 797
 798         if (op_mode == QLC_DEV_DRV_DEFAULT)
 799                 priv_level = QLCNIC_MGMT_FUNC;
 800         else
 801                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw.pci_func);
 802
 803         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 804                 if (priv_level == QLCNIC_MGMT_FUNC) {
 805                         adapter->op_mode = QLCNIC_MGMT_FUNC;
 806                         err = qlcnic_init_pci_info(adapter);
 807                         if (err)
 808                                 return err;
 809                         /* Set privilege level for other functions */
 810                         qlcnic_set_function_modes(adapter);
 811                         dev_info(&adapter->pdev->dev,
 812                                 "HAL Version: %d, Management function\n",
 813                                 adapter->fw_hal_version);
 814                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
 815                         adapter->op_mode = QLCNIC_PRIV_FUNC;
 816                         dev_info(&adapter->pdev->dev,
 817                                 "HAL Version: %d, Privileged function\n",
 818                                 adapter->fw_hal_version);
 819                 }
 820         }
 821
 822         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
 823
 824         return err;
 825 }
 826
 827 static int
 828 qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
 829 {
 830         struct qlcnic_esw_func_cfg esw_cfg;
 831         struct qlcnic_npar_info *npar;
 832         u8 i;
 833
 834         if (adapter->need_fw_reset)
 835                 return 0;
 836
 837         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 838                 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
 839                         continue;
 840                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
 841                 esw_cfg.pci_func = i;
 842                 esw_cfg.offload_flags = BIT_0;
 843                 esw_cfg.mac_override = BIT_0;
 844                 esw_cfg.promisc_mode = BIT_0;
 845                 if (adapter->capabilities  & QLCNIC_FW_CAPABILITY_TSO)
 846                         esw_cfg.offload_flags |= (BIT_1 | BIT_2);
 847                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
 848                         return -EIO;
 849                 npar = &adapter->npars[i];
 850                 npar->pvid = esw_cfg.vlan_id;
 851                 npar->mac_override = esw_cfg.mac_override;
 852                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
 853                 npar->discard_tagged = esw_cfg.discard_tagged;
 854                 npar->promisc_mode = esw_cfg.promisc_mode;
 855                 npar->offload_flags = esw_cfg.offload_flags;
 856         }
 857
 858         return 0;
 859 }
 860
 861 static int
 862 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
 863                         struct qlcnic_npar_info *npar, int pci_func)
 864 {
 865         struct qlcnic_esw_func_cfg esw_cfg;
 866         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
 867         esw_cfg.pci_func = pci_func;
 868         esw_cfg.vlan_id = npar->pvid;
 869         esw_cfg.mac_override = npar->mac_override;
 870         esw_cfg.discard_tagged = npar->discard_tagged;
 871         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
 872         esw_cfg.offload_flags = npar->offload_flags;
 873         esw_cfg.promisc_mode = npar->promisc_mode;
 874         if (qlcnic_config_switch_port(adapter, &esw_cfg))
 875                 return -EIO;
 876
 877         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
 878         if (qlcnic_config_switch_port(adapter, &esw_cfg))
 879                 return -EIO;
 880
 881         return 0;
 882 }
 883
 884 static int
 885 qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
 886 {
 887         int i, err;
 888         struct qlcnic_npar_info *npar;
 889         struct qlcnic_info nic_info;
 890
 891         if (!adapter->need_fw_reset)
 892                 return 0;
 893
 894         /* Set the NPAR config data after FW reset */
 895         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 896                 npar = &adapter->npars[i];
 897                 if (npar->type != QLCNIC_TYPE_NIC)
 898                         continue;
 899                 err = qlcnic_get_nic_info(adapter, &nic_info, i);
 900                 if (err)
 901                         return err;
 902                 nic_info.min_tx_bw = npar->min_bw;
 903                 nic_info.max_tx_bw = npar->max_bw;
 904                 err = qlcnic_set_nic_info(adapter, &nic_info);
 905                 if (err)
 906                         return err;
 907
 908                 if (npar->enable_pm) {
 909                         err = qlcnic_config_port_mirroring(adapter,
 910                                                         npar->dest_npar, 1, i);
 911                         if (err)
 912                                 return err;
 913                 }
 914                 err = qlcnic_reset_eswitch_config(adapter, npar, i);
 915                 if (err)
 916                         return err;
 917         }
 918         return 0;
 919 }
 920
 921 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
 922 {
 923         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
 924         u32 npar_state;
 925
 926         if (adapter->op_mode == QLCNIC_MGMT_FUNC)
 927                 return 0;
 928
 929         npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
 930         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
 931                 msleep(1000);
 932                 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
 933         }
 934         if (!npar_opt_timeo) {
 935                 dev_err(&adapter->pdev->dev,
 936                         "Waiting for NPAR state to opertional timeout\n");
 937                 return -EIO;
 938         }
 939         return 0;
 940 }
 941
 942 static int
 943 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
 944 {
 945         int err;
 946
 947         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
 948                     adapter->op_mode != QLCNIC_MGMT_FUNC)
 949                 return 0;
 950
 951         err = qlcnic_set_default_offload_settings(adapter);
 952         if (err)
 953                 return err;
 954
 955         err = qlcnic_reset_npar_config(adapter);
 956         if (err)
 957                 return err;
 958
 959         qlcnic_dev_set_npar_ready(adapter);
 960
 961         return err;
 962 }
 963
 964 static int
 965 qlcnic_start_firmware(struct qlcnic_adapter *adapter)
 966 {
 967         int err;
 968
 969         err = qlcnic_can_start_firmware(adapter);
 970         if (err < 0)
 971                 return err;
 972         else if (!err)
 973                 goto check_fw_status;
 974
 975         if (load_fw_file)
 976                 qlcnic_request_firmware(adapter);
 977         else {
 978                 err = qlcnic_check_flash_fw_ver(adapter);
 979                 if (err)
 980                         goto err_out;
 981
 982                 adapter->fw_type = QLCNIC_FLASH_ROMIMAGE;
 983         }
 984
 985         err = qlcnic_need_fw_reset(adapter);
 986         if (err == 0)
 987                 goto check_fw_status;
 988
 989         err = qlcnic_pinit_from_rom(adapter);
 990         if (err)
 991                 goto err_out;
 992
 993         err = qlcnic_load_firmware(adapter);
 994         if (err)
 995                 goto err_out;
 996
 997         qlcnic_release_firmware(adapter);
 998         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
 999
1000 check_fw_status:
1001         err = qlcnic_check_fw_status(adapter);
1002         if (err)
1003                 goto err_out;
1004
1005         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1006         qlcnic_idc_debug_info(adapter, 1);
1007
1008         err = qlcnic_check_eswitch_mode(adapter);
1009         if (err) {
1010                 dev_err(&adapter->pdev->dev,
1011                         "Memory allocation failed for eswitch\n");
1012                 goto err_out;
1013         }
1014         err = qlcnic_set_mgmt_operations(adapter);
1015         if (err)
1016                 goto err_out;
1017
1018         qlcnic_check_options(adapter);
1019         adapter->need_fw_reset = 0;
1020
1021         qlcnic_release_firmware(adapter);
1022         return 0;
1023
1024 err_out:
1025         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1026         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1027
1028         qlcnic_release_firmware(adapter);
1029         return err;
1030 }
1031
1032 static int
1033 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1034 {
1035         irq_handler_t handler;
1036         struct qlcnic_host_sds_ring *sds_ring;
1037         int err, ring;
1038
1039         unsigned long flags = 0;
1040         struct net_device *netdev = adapter->netdev;
1041         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1042
1043         if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1044                 handler = qlcnic_tmp_intr;
1045                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1046                         flags |= IRQF_SHARED;
1047
1048         } else {
1049                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1050                         handler = qlcnic_msix_intr;
1051                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1052                         handler = qlcnic_msi_intr;
1053                 else {
1054                         flags |= IRQF_SHARED;
1055                         handler = qlcnic_intr;
1056                 }
1057         }
1058         adapter->irq = netdev->irq;
1059
1060         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1061                 sds_ring = &recv_ctx->sds_rings[ring];
1062                 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
1063                 err = request_irq(sds_ring->irq, handler,
1064                                   flags, sds_ring->name, sds_ring);
1065                 if (err)
1066                         return err;
1067         }
1068
1069         return 0;
1070 }
1071
1072 static void
1073 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1074 {
1075         int ring;
1076         struct qlcnic_host_sds_ring *sds_ring;
1077
1078         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1079
1080         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1081                 sds_ring = &recv_ctx->sds_rings[ring];
1082                 free_irq(sds_ring->irq, sds_ring);
1083         }
1084 }
1085
1086 static void
1087 qlcnic_init_coalesce_defaults(struct qlcnic_adapter *adapter)
1088 {
1089         adapter->coal.flags = QLCNIC_INTR_DEFAULT;
1090         adapter->coal.normal.data.rx_time_us =
1091                 QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
1092         adapter->coal.normal.data.rx_packets =
1093                 QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
1094         adapter->coal.normal.data.tx_time_us =
1095                 QLCNIC_DEFAULT_INTR_COALESCE_TX_TIME_US;
1096         adapter->coal.normal.data.tx_packets =
1097                 QLCNIC_DEFAULT_INTR_COALESCE_TX_PACKETS;
1098 }
1099
1100 static int
1101 __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1102 {
1103         int ring;
1104         struct qlcnic_host_rds_ring *rds_ring;
1105
1106         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1107                 return -EIO;
1108
1109         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1110                 return 0;
1111         if (qlcnic_set_eswitch_port_config(adapter))
1112                 return -EIO;
1113
1114         if (qlcnic_fw_create_ctx(adapter))
1115                 return -EIO;
1116
1117         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1118                 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1119                 qlcnic_post_rx_buffers(adapter, ring, rds_ring);
1120         }
1121
1122         qlcnic_set_multi(netdev);
1123         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1124
1125         adapter->ahw.linkup = 0;
1126
1127         if (adapter->max_sds_rings > 1)
1128                 qlcnic_config_rss(adapter, 1);
1129
1130         qlcnic_config_intr_coalesce(adapter);
1131
1132         if (netdev->features & NETIF_F_LRO)
1133                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1134
1135         qlcnic_napi_enable(adapter);
1136
1137         qlcnic_linkevent_request(adapter, 1);
1138
1139         adapter->reset_context = 0;
1140         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1141         return 0;
1142 }
1143
1144 /* Usage: During resume and firmware recovery module.*/
1145
1146 static int
1147 qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1148 {
1149         int err = 0;
1150
1151         rtnl_lock();
1152         if (netif_running(netdev))
1153                 err = __qlcnic_up(adapter, netdev);
1154         rtnl_unlock();
1155
1156         return err;
1157 }
1158
1159 static void
1160 __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1161 {
1162         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1163                 return;
1164
1165         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1166                 return;
1167
1168         smp_mb();
1169         spin_lock(&adapter->tx_clean_lock);
1170         netif_carrier_off(netdev);
1171         netif_tx_disable(netdev);
1172
1173         qlcnic_free_mac_list(adapter);
1174
1175         if (adapter->fhash.fnum)
1176                 qlcnic_delete_lb_filters(adapter);
1177
1178         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1179
1180         qlcnic_napi_disable(adapter);
1181
1182         qlcnic_fw_destroy_ctx(adapter);
1183
1184         qlcnic_reset_rx_buffers_list(adapter);
1185         qlcnic_release_tx_buffers(adapter);
1186         spin_unlock(&adapter->tx_clean_lock);
1187 }
1188
1189 /* Usage: During suspend and firmware recovery module */
1190
1191 static void
1192 qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1193 {
1194         rtnl_lock();
1195         if (netif_running(netdev))
1196                 __qlcnic_down(adapter, netdev);
1197         rtnl_unlock();
1198
1199 }
1200
1201 static int
1202 qlcnic_attach(struct qlcnic_adapter *adapter)
1203 {
1204         struct net_device *netdev = adapter->netdev;
1205         struct pci_dev *pdev = adapter->pdev;
1206         int err;
1207
1208         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1209                 return 0;
1210
1211         err = qlcnic_napi_add(adapter, netdev);
1212         if (err)
1213                 return err;
1214
1215         err = qlcnic_alloc_sw_resources(adapter);
1216         if (err) {
1217                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1218                 goto err_out_napi_del;
1219         }
1220
1221         err = qlcnic_alloc_hw_resources(adapter);
1222         if (err) {
1223                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1224                 goto err_out_free_sw;
1225         }
1226
1227         err = qlcnic_request_irq(adapter);
1228         if (err) {
1229                 dev_err(&pdev->dev, "failed to setup interrupt\n");
1230                 goto err_out_free_hw;
1231         }
1232
1233         qlcnic_init_coalesce_defaults(adapter);
1234
1235         qlcnic_create_sysfs_entries(adapter);
1236
1237         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1238         return 0;
1239
1240 err_out_free_hw:
1241         qlcnic_free_hw_resources(adapter);
1242 err_out_free_sw:
1243         qlcnic_free_sw_resources(adapter);
1244 err_out_napi_del:
1245         qlcnic_napi_del(adapter);
1246         return err;
1247 }
1248
1249 static void
1250 qlcnic_detach(struct qlcnic_adapter *adapter)
1251 {
1252         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1253                 return;
1254
1255         qlcnic_remove_sysfs_entries(adapter);
1256
1257         qlcnic_free_hw_resources(adapter);
1258         qlcnic_release_rx_buffers(adapter);
1259         qlcnic_free_irq(adapter);
1260         qlcnic_napi_del(adapter);
1261         qlcnic_free_sw_resources(adapter);
1262
1263         adapter->is_up = 0;
1264 }
1265
1266 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1267 {
1268         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1269         struct qlcnic_host_sds_ring *sds_ring;
1270         int ring;
1271
1272         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1273         if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1274                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1275                         sds_ring = &adapter->recv_ctx.sds_rings[ring];
1276                         qlcnic_disable_int(sds_ring);
1277                 }
1278         }
1279
1280         qlcnic_fw_destroy_ctx(adapter);
1281
1282         qlcnic_detach(adapter);
1283
1284         adapter->diag_test = 0;
1285         adapter->max_sds_rings = max_sds_rings;
1286
1287         if (qlcnic_attach(adapter))
1288                 goto out;
1289
1290         if (netif_running(netdev))
1291                 __qlcnic_up(adapter, netdev);
1292 out:
1293         netif_device_attach(netdev);
1294 }
1295
1296 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1297 {
1298         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1299         struct qlcnic_host_sds_ring *sds_ring;
1300         struct qlcnic_host_rds_ring *rds_ring;
1301         int ring;
1302         int ret;
1303
1304         netif_device_detach(netdev);
1305
1306         if (netif_running(netdev))
1307                 __qlcnic_down(adapter, netdev);
1308
1309         qlcnic_detach(adapter);
1310
1311         adapter->max_sds_rings = 1;
1312         adapter->diag_test = test;
1313
1314         ret = qlcnic_attach(adapter);
1315         if (ret) {
1316                 netif_device_attach(netdev);
1317                 return ret;
1318         }
1319
1320         ret = qlcnic_fw_create_ctx(adapter);
1321         if (ret) {
1322                 qlcnic_detach(adapter);
1323                 netif_device_attach(netdev);
1324                 return ret;
1325         }
1326
1327         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1328                 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1329                 qlcnic_post_rx_buffers(adapter, ring, rds_ring);
1330         }
1331
1332         if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1333                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1334                         sds_ring = &adapter->recv_ctx.sds_rings[ring];
1335                         qlcnic_enable_int(sds_ring);
1336                 }
1337         }
1338         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1339
1340         return 0;
1341 }
1342
1343 /* Reset context in hardware only */
1344 static int
1345 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1346 {
1347         struct net_device *netdev = adapter->netdev;
1348
1349         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1350                 return -EBUSY;
1351
1352         netif_device_detach(netdev);
1353
1354         qlcnic_down(adapter, netdev);
1355
1356         qlcnic_up(adapter, netdev);
1357
1358         netif_device_attach(netdev);
1359
1360         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1361         return 0;
1362 }
1363
1364 int
1365 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1366 {
1367         int err = 0;
1368         struct net_device *netdev = adapter->netdev;
1369
1370         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1371                 return -EBUSY;
1372
1373         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1374
1375                 netif_device_detach(netdev);
1376
1377                 if (netif_running(netdev))
1378                         __qlcnic_down(adapter, netdev);
1379
1380                 qlcnic_detach(adapter);
1381
1382                 if (netif_running(netdev)) {
1383                         err = qlcnic_attach(adapter);
1384                         if (!err)
1385                                 __qlcnic_up(adapter, netdev);
1386                 }
1387
1388                 netif_device_attach(netdev);
1389         }
1390
1391         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1392         return err;
1393 }
1394
1395 static int
1396 qlcnic_setup_netdev(struct qlcnic_adapter *adapter,
1397                 struct net_device *netdev, u8 pci_using_dac)
1398 {
1399         int err;
1400         struct pci_dev *pdev = adapter->pdev;
1401
1402         adapter->rx_csum = 1;
1403         adapter->mc_enabled = 0;
1404         adapter->max_mc_count = 38;
1405
1406         netdev->netdev_ops         = &qlcnic_netdev_ops;
1407         netdev->watchdog_timeo     = 5*HZ;
1408
1409         qlcnic_change_mtu(netdev, netdev->mtu);
1410
1411         SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1412
1413         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1414                 NETIF_F_IPV6_CSUM | NETIF_F_GRO | NETIF_F_HW_VLAN_RX);
1415         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1416                 NETIF_F_IPV6_CSUM);
1417
1418         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO) {
1419                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
1420                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
1421         }
1422
1423         if (pci_using_dac) {
1424                 netdev->features |= NETIF_F_HIGHDMA;
1425                 netdev->vlan_features |= NETIF_F_HIGHDMA;
1426         }
1427
1428         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX)
1429                 netdev->features |= (NETIF_F_HW_VLAN_TX);
1430
1431         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1432                 netdev->features |= NETIF_F_LRO;
1433         netdev->irq = adapter->msix_entries[0].vector;
1434
1435         netif_carrier_off(netdev);
1436
1437         err = register_netdev(netdev);
1438         if (err) {
1439                 dev_err(&pdev->dev, "failed to register net device\n");
1440                 return err;
1441         }
1442
1443         return 0;
1444 }
1445
1446 static int qlcnic_set_dma_mask(struct pci_dev *pdev, u8 *pci_using_dac)
1447 {
1448         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1449                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1450                 *pci_using_dac = 1;
1451         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1452                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1453                 *pci_using_dac = 0;
1454         else {
1455                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1456                 return -EIO;
1457         }
1458
1459         return 0;
1460 }
1461
1462 static int __devinit
1463 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1464 {
1465         struct net_device *netdev = NULL;
1466         struct qlcnic_adapter *adapter = NULL;
1467         int err;
1468         uint8_t revision_id;
1469         uint8_t pci_using_dac;
1470         char brd_name[QLCNIC_MAX_BOARD_NAME_LEN];
1471
1472         err = pci_enable_device(pdev);
1473         if (err)
1474                 return err;
1475
1476         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1477                 err = -ENODEV;
1478                 goto err_out_disable_pdev;
1479         }
1480
1481         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
1482         if (err)
1483                 goto err_out_disable_pdev;
1484
1485         err = pci_request_regions(pdev, qlcnic_driver_name);
1486         if (err)
1487                 goto err_out_disable_pdev;
1488
1489         pci_set_master(pdev);
1490         pci_enable_pcie_error_reporting(pdev);
1491
1492         netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1493         if (!netdev) {
1494                 dev_err(&pdev->dev, "failed to allocate net_device\n");
1495                 err = -ENOMEM;
1496                 goto err_out_free_res;
1497         }
1498
1499         SET_NETDEV_DEV(netdev, &pdev->dev);
1500
1501         adapter = netdev_priv(netdev);
1502         adapter->netdev  = netdev;
1503         adapter->pdev    = pdev;
1504         adapter->dev_rst_time = jiffies;
1505
1506         revision_id = pdev->revision;
1507         adapter->ahw.revision_id = revision_id;
1508
1509         rwlock_init(&adapter->ahw.crb_lock);
1510         mutex_init(&adapter->ahw.mem_lock);
1511
1512         spin_lock_init(&adapter->tx_clean_lock);
1513         INIT_LIST_HEAD(&adapter->mac_list);
1514
1515         err = qlcnic_setup_pci_map(adapter);
1516         if (err)
1517                 goto err_out_free_netdev;
1518
1519         /* This will be reset for mezz cards  */
1520         adapter->portnum = adapter->ahw.pci_func;
1521
1522         err = qlcnic_get_board_info(adapter);
1523         if (err) {
1524                 dev_err(&pdev->dev, "Error getting board config info.\n");
1525                 goto err_out_iounmap;
1526         }
1527
1528         err = qlcnic_setup_idc_param(adapter);
1529         if (err)
1530                 goto err_out_iounmap;
1531
1532         adapter->flags |= QLCNIC_NEED_FLR;
1533
1534         err = adapter->nic_ops->start_firmware(adapter);
1535         if (err) {
1536                 dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
1537                 goto err_out_decr_ref;
1538         }
1539
1540         if (qlcnic_read_mac_addr(adapter))
1541                 dev_warn(&pdev->dev, "failed to read mac addr\n");
1542
1543         if (adapter->portnum == 0) {
1544                 get_brd_name(adapter, brd_name);
1545
1546                 pr_info("%s: %s Board Chip rev 0x%x\n",
1547                                 module_name(THIS_MODULE),
1548                                 brd_name, adapter->ahw.revision_id);
1549         }
1550
1551         qlcnic_clear_stats(adapter);
1552
1553         qlcnic_setup_intr(adapter);
1554
1555         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
1556         if (err)
1557                 goto err_out_disable_msi;
1558
1559         pci_set_drvdata(pdev, adapter);
1560
1561         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1562
1563         switch (adapter->ahw.port_type) {
1564         case QLCNIC_GBE:
1565                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1566                                 adapter->netdev->name);
1567                 break;
1568         case QLCNIC_XGBE:
1569                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1570                                 adapter->netdev->name);
1571                 break;
1572         }
1573
1574         qlcnic_alloc_lb_filters_mem(adapter);
1575         qlcnic_create_diag_entries(adapter);
1576
1577         return 0;
1578
1579 err_out_disable_msi:
1580         qlcnic_teardown_intr(adapter);
1581
1582 err_out_decr_ref:
1583         qlcnic_clr_all_drv_state(adapter, 0);
1584
1585 err_out_iounmap:
1586         qlcnic_cleanup_pci_map(adapter);
1587
1588 err_out_free_netdev:
1589         free_netdev(netdev);
1590
1591 err_out_free_res:
1592         pci_release_regions(pdev);
1593
1594 err_out_disable_pdev:
1595         pci_set_drvdata(pdev, NULL);
1596         pci_disable_device(pdev);
1597         return err;
1598 }
1599
1600 static void __devexit qlcnic_remove(struct pci_dev *pdev)
1601 {
1602         struct qlcnic_adapter *adapter;
1603         struct net_device *netdev;
1604
1605         adapter = pci_get_drvdata(pdev);
1606         if (adapter == NULL)
1607                 return;
1608
1609         netdev = adapter->netdev;
1610
1611         qlcnic_cancel_fw_work(adapter);
1612
1613         unregister_netdev(netdev);
1614
1615         qlcnic_detach(adapter);
1616
1617         if (adapter->npars != NULL)
1618                 kfree(adapter->npars);
1619         if (adapter->eswitch != NULL)
1620                 kfree(adapter->eswitch);
1621
1622         qlcnic_clr_all_drv_state(adapter, 0);
1623
1624         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1625
1626         qlcnic_free_lb_filters_mem(adapter);
1627
1628         qlcnic_teardown_intr(adapter);
1629
1630         qlcnic_remove_diag_entries(adapter);
1631
1632         qlcnic_cleanup_pci_map(adapter);
1633
1634         qlcnic_release_firmware(adapter);
1635
1636         pci_disable_pcie_error_reporting(pdev);
1637         pci_release_regions(pdev);
1638         pci_disable_device(pdev);
1639         pci_set_drvdata(pdev, NULL);
1640
1641         free_netdev(netdev);
1642 }
1643 static int __qlcnic_shutdown(struct pci_dev *pdev)
1644 {
1645         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1646         struct net_device *netdev = adapter->netdev;
1647         int retval;
1648
1649         netif_device_detach(netdev);
1650
1651         qlcnic_cancel_fw_work(adapter);
1652
1653         if (netif_running(netdev))
1654                 qlcnic_down(adapter, netdev);
1655
1656         qlcnic_clr_all_drv_state(adapter, 0);
1657
1658         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1659
1660         retval = pci_save_state(pdev);
1661         if (retval)
1662                 return retval;
1663
1664         if (qlcnic_wol_supported(adapter)) {
1665                 pci_enable_wake(pdev, PCI_D3cold, 1);
1666                 pci_enable_wake(pdev, PCI_D3hot, 1);
1667         }
1668
1669         return 0;
1670 }
1671
1672 static void qlcnic_shutdown(struct pci_dev *pdev)
1673 {
1674         if (__qlcnic_shutdown(pdev))
1675                 return;
1676
1677         pci_disable_device(pdev);
1678 }
1679
1680 #ifdef CONFIG_PM
1681 static int
1682 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
1683 {
1684         int retval;
1685
1686         retval = __qlcnic_shutdown(pdev);
1687         if (retval)
1688                 return retval;
1689
1690         pci_set_power_state(pdev, pci_choose_state(pdev, state));
1691         return 0;
1692 }
1693
1694 static int
1695 qlcnic_resume(struct pci_dev *pdev)
1696 {
1697         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1698         struct net_device *netdev = adapter->netdev;
1699         int err;
1700
1701         err = pci_enable_device(pdev);
1702         if (err)
1703                 return err;
1704
1705         pci_set_power_state(pdev, PCI_D0);
1706         pci_set_master(pdev);
1707         pci_restore_state(pdev);
1708
1709         err = adapter->nic_ops->start_firmware(adapter);
1710         if (err) {
1711                 dev_err(&pdev->dev, "failed to start firmware\n");
1712                 return err;
1713         }
1714
1715         if (netif_running(netdev)) {
1716                 err = qlcnic_up(adapter, netdev);
1717                 if (err)
1718                         goto done;
1719
1720                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1721         }
1722 done:
1723         netif_device_attach(netdev);
1724         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1725         return 0;
1726 }
1727 #endif
1728
1729 static int qlcnic_open(struct net_device *netdev)
1730 {
1731         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1732         int err;
1733
1734         err = qlcnic_attach(adapter);
1735         if (err)
1736                 return err;
1737
1738         err = __qlcnic_up(adapter, netdev);
1739         if (err)
1740                 goto err_out;
1741
1742         netif_start_queue(netdev);
1743
1744         return 0;
1745
1746 err_out:
1747         qlcnic_detach(adapter);
1748         return err;
1749 }
1750
1751 /*
1752  * qlcnic_close - Disables a network interface entry point
1753  */
1754 static int qlcnic_close(struct net_device *netdev)
1755 {
1756         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1757
1758         __qlcnic_down(adapter, netdev);
1759         return 0;
1760 }
1761
1762 static void
1763 qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
1764 {
1765         void *head;
1766         int i;
1767
1768         if (!qlcnic_mac_learn)
1769                 return;
1770
1771         spin_lock_init(&adapter->mac_learn_lock);
1772
1773         head = kcalloc(QLCNIC_LB_MAX_FILTERS, sizeof(struct hlist_head),
1774                                                                 GFP_KERNEL);
1775         if (!head)
1776                 return;
1777
1778         adapter->fhash.fmax = QLCNIC_LB_MAX_FILTERS;
1779         adapter->fhash.fhead = (struct hlist_head *)head;
1780
1781         for (i = 0; i < adapter->fhash.fmax; i++)
1782                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
1783 }
1784
1785 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
1786 {
1787         if (adapter->fhash.fmax && adapter->fhash.fhead)
1788                 kfree(adapter->fhash.fhead);
1789
1790         adapter->fhash.fhead = NULL;
1791         adapter->fhash.fmax = 0;
1792 }
1793
1794 static void qlcnic_change_filter(struct qlcnic_adapter *adapter,
1795                 u64 uaddr, __le16 vlan_id, struct qlcnic_host_tx_ring *tx_ring)
1796 {
1797         struct cmd_desc_type0 *hwdesc;
1798         struct qlcnic_nic_req *req;
1799         struct qlcnic_mac_req *mac_req;
1800         struct qlcnic_vlan_req *vlan_req;
1801         u32 producer;
1802         u64 word;
1803
1804         producer = tx_ring->producer;
1805         hwdesc = &tx_ring->desc_head[tx_ring->producer];
1806
1807         req = (struct qlcnic_nic_req *)hwdesc;
1808         memset(req, 0, sizeof(struct qlcnic_nic_req));
1809         req->qhdr = cpu_to_le64(QLCNIC_REQUEST << 23);
1810
1811         word = QLCNIC_MAC_EVENT | ((u64)(adapter->portnum) << 16);
1812         req->req_hdr = cpu_to_le64(word);
1813
1814         mac_req = (struct qlcnic_mac_req *)&(req->words[0]);
1815         mac_req->op = vlan_id ? QLCNIC_MAC_VLAN_ADD : QLCNIC_MAC_ADD;
1816         memcpy(mac_req->mac_addr, &uaddr, ETH_ALEN);
1817
1818         vlan_req = (struct qlcnic_vlan_req *)&req->words[1];
1819         vlan_req->vlan_id = vlan_id;
1820
1821         tx_ring->producer = get_next_index(producer, tx_ring->num_desc);
1822 }
1823
1824 #define QLCNIC_MAC_HASH(MAC)\
1825         ((((MAC) & 0x70000) >> 0x10) | (((MAC) & 0x70000000000ULL) >> 0x25))
1826
1827 static void
1828 qlcnic_send_filter(struct qlcnic_adapter *adapter,
1829                 struct qlcnic_host_tx_ring *tx_ring,
1830                 struct cmd_desc_type0 *first_desc,
1831                 struct sk_buff *skb)
1832 {
1833         struct ethhdr *phdr = (struct ethhdr *)(skb->data);
1834         struct qlcnic_filter *fil, *tmp_fil;
1835         struct hlist_node *tmp_hnode, *n;
1836         struct hlist_head *head;
1837         u64 src_addr = 0;
1838         __le16 vlan_id = 0;
1839         u8 hindex;
1840
1841         if (!compare_ether_addr(phdr->h_source, adapter->mac_addr))
1842                 return;
1843
1844         if (adapter->fhash.fnum >= adapter->fhash.fmax)
1845                 return;
1846
1847         /* Only NPAR capable devices support vlan based learning*/
1848         if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
1849                 vlan_id = first_desc->vlan_TCI;
1850         memcpy(&src_addr, phdr->h_source, ETH_ALEN);
1851         hindex = QLCNIC_MAC_HASH(src_addr) & (QLCNIC_LB_MAX_FILTERS - 1);
1852         head = &(adapter->fhash.fhead[hindex]);
1853
1854         hlist_for_each_entry_safe(tmp_fil, tmp_hnode, n, head, fnode) {
1855                 if (!memcmp(tmp_fil->faddr, &src_addr, ETH_ALEN) &&
1856                             tmp_fil->vlan_id == vlan_id) {
1857
1858                         if (jiffies >
1859                             (QLCNIC_READD_AGE * HZ + tmp_fil->ftime))
1860                                 qlcnic_change_filter(adapter, src_addr, vlan_id,
1861                                                                 tx_ring);
1862                         tmp_fil->ftime = jiffies;
1863                         return;
1864                 }
1865         }
1866
1867         fil = kzalloc(sizeof(struct qlcnic_filter), GFP_ATOMIC);
1868         if (!fil)
1869                 return;
1870
1871         qlcnic_change_filter(adapter, src_addr, vlan_id, tx_ring);
1872
1873         fil->ftime = jiffies;
1874         fil->vlan_id = vlan_id;
1875         memcpy(fil->faddr, &src_addr, ETH_ALEN);
1876         spin_lock(&adapter->mac_learn_lock);
1877         hlist_add_head(&(fil->fnode), head);
1878         adapter->fhash.fnum++;
1879         spin_unlock(&adapter->mac_learn_lock);
1880 }
1881
1882 static void
1883 qlcnic_tso_check(struct net_device *netdev,
1884                 struct qlcnic_host_tx_ring *tx_ring,
1885                 struct cmd_desc_type0 *first_desc,
1886                 struct sk_buff *skb)
1887 {
1888         u8 opcode = TX_ETHER_PKT;
1889         __be16 protocol = skb->protocol;
1890         u16 flags = 0;
1891         int copied, offset, copy_len, hdr_len = 0, tso = 0;
1892         struct cmd_desc_type0 *hwdesc;
1893         struct vlan_ethhdr *vh;
1894         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1895         u32 producer = tx_ring->producer;
1896         __le16 vlan_oob = first_desc->flags_opcode &
1897                                 cpu_to_le16(FLAGS_VLAN_OOB);
1898
1899         if (*(skb->data) & BIT_0) {
1900                 flags |= BIT_0;
1901                 memcpy(&first_desc->eth_addr, skb->data, ETH_ALEN);
1902         }
1903
1904         if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1905                         skb_shinfo(skb)->gso_size > 0) {
1906
1907                 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1908
1909                 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1910                 first_desc->total_hdr_length = hdr_len;
1911                 if (vlan_oob) {
1912                         first_desc->total_hdr_length += VLAN_HLEN;
1913                         first_desc->tcp_hdr_offset = VLAN_HLEN;
1914                         first_desc->ip_hdr_offset = VLAN_HLEN;
1915                         /* Only in case of TSO on vlan device */
1916                         flags |= FLAGS_VLAN_TAGGED;
1917                 }
1918
1919                 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1920                                 TX_TCP_LSO6 : TX_TCP_LSO;
1921                 tso = 1;
1922
1923         } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1924                 u8 l4proto;
1925
1926                 if (protocol == cpu_to_be16(ETH_P_IP)) {
1927                         l4proto = ip_hdr(skb)->protocol;
1928
1929                         if (l4proto == IPPROTO_TCP)
1930                                 opcode = TX_TCP_PKT;
1931                         else if (l4proto == IPPROTO_UDP)
1932                                 opcode = TX_UDP_PKT;
1933                 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1934                         l4proto = ipv6_hdr(skb)->nexthdr;
1935
1936                         if (l4proto == IPPROTO_TCP)
1937                                 opcode = TX_TCPV6_PKT;
1938                         else if (l4proto == IPPROTO_UDP)
1939                                 opcode = TX_UDPV6_PKT;
1940                 }
1941         }
1942
1943         first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1944         first_desc->ip_hdr_offset += skb_network_offset(skb);
1945         qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
1946
1947         if (!tso)
1948                 return;
1949
1950         /* For LSO, we need to copy the MAC/IP/TCP headers into
1951          * the descriptor ring
1952          */
1953         copied = 0;
1954         offset = 2;
1955
1956         if (vlan_oob) {
1957                 /* Create a TSO vlan header template for firmware */
1958
1959                 hwdesc = &tx_ring->desc_head[producer];
1960                 tx_ring->cmd_buf_arr[producer].skb = NULL;
1961
1962                 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1963                                 hdr_len + VLAN_HLEN);
1964
1965                 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1966                 skb_copy_from_linear_data(skb, vh, 12);
1967                 vh->h_vlan_proto = htons(ETH_P_8021Q);
1968                 vh->h_vlan_TCI = (__be16)swab16((u16)first_desc->vlan_TCI);
1969
1970                 skb_copy_from_linear_data_offset(skb, 12,
1971                                 (char *)vh + 16, copy_len - 16);
1972
1973                 copied = copy_len - VLAN_HLEN;
1974                 offset = 0;
1975
1976                 producer = get_next_index(producer, tx_ring->num_desc);
1977         }
1978
1979         while (copied < hdr_len) {
1980
1981                 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1982                                 (hdr_len - copied));
1983
1984                 hwdesc = &tx_ring->desc_head[producer];
1985                 tx_ring->cmd_buf_arr[producer].skb = NULL;
1986
1987                 skb_copy_from_linear_data_offset(skb, copied,
1988                                  (char *)hwdesc + offset, copy_len);
1989
1990                 copied += copy_len;
1991                 offset = 0;
1992
1993                 producer = get_next_index(producer, tx_ring->num_desc);
1994         }
1995
1996         tx_ring->producer = producer;
1997         barrier();
1998         adapter->stats.lso_frames++;
1999 }
2000
2001 static int
2002 qlcnic_map_tx_skb(struct pci_dev *pdev,
2003                 struct sk_buff *skb, struct qlcnic_cmd_buffer *pbuf)
2004 {
2005         struct qlcnic_skb_frag *nf;
2006         struct skb_frag_struct *frag;
2007         int i, nr_frags;
2008         dma_addr_t map;
2009
2010         nr_frags = skb_shinfo(skb)->nr_frags;
2011         nf = &pbuf->frag_array[0];
2012
2013         map = pci_map_single(pdev, skb->data,
2014                         skb_headlen(skb), PCI_DMA_TODEVICE);
2015         if (pci_dma_mapping_error(pdev, map))
2016                 goto out_err;
2017
2018         nf->dma = map;
2019         nf->length = skb_headlen(skb);
2020
2021         for (i = 0; i < nr_frags; i++) {
2022                 frag = &skb_shinfo(skb)->frags[i];
2023                 nf = &pbuf->frag_array[i+1];
2024
2025                 map = pci_map_page(pdev, frag->page, frag->page_offset,
2026                                 frag->size, PCI_DMA_TODEVICE);
2027                 if (pci_dma_mapping_error(pdev, map))
2028                         goto unwind;
2029
2030                 nf->dma = map;
2031                 nf->length = frag->size;
2032         }
2033
2034         return 0;
2035
2036 unwind:
2037         while (--i >= 0) {
2038                 nf = &pbuf->frag_array[i+1];
2039                 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
2040         }
2041
2042         nf = &pbuf->frag_array[0];
2043         pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
2044
2045 out_err:
2046         return -ENOMEM;
2047 }
2048
2049 static int
2050 qlcnic_check_tx_tagging(struct qlcnic_adapter *adapter,
2051                         struct sk_buff *skb,
2052                         struct cmd_desc_type0 *first_desc)
2053 {
2054         u8 opcode = 0;
2055         u16 flags = 0;
2056         __be16 protocol = skb->protocol;
2057         struct vlan_ethhdr *vh;
2058
2059         if (protocol == cpu_to_be16(ETH_P_8021Q)) {
2060                 vh = (struct vlan_ethhdr *)skb->data;
2061                 protocol = vh->h_vlan_encapsulated_proto;
2062                 flags = FLAGS_VLAN_TAGGED;
2063                 qlcnic_set_tx_vlan_tci(first_desc, ntohs(vh->h_vlan_TCI));
2064         } else if (vlan_tx_tag_present(skb)) {
2065                 flags = FLAGS_VLAN_OOB;
2066                 qlcnic_set_tx_vlan_tci(first_desc, vlan_tx_tag_get(skb));
2067         }
2068         if (unlikely(adapter->pvid)) {
2069                 if (first_desc->vlan_TCI &&
2070                                 !(adapter->flags & QLCNIC_TAGGING_ENABLED))
2071                         return -EIO;
2072                 if (first_desc->vlan_TCI &&
2073                                 (adapter->flags & QLCNIC_TAGGING_ENABLED))
2074                         goto set_flags;
2075
2076                 flags = FLAGS_VLAN_OOB;
2077                 qlcnic_set_tx_vlan_tci(first_desc, adapter->pvid);
2078         }
2079 set_flags:
2080         qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
2081         return 0;
2082 }
2083
2084 static inline void
2085 qlcnic_clear_cmddesc(u64 *desc)
2086 {
2087         desc[0] = 0ULL;
2088         desc[2] = 0ULL;
2089         desc[7] = 0ULL;
2090 }
2091
2092 netdev_tx_t
2093 qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
2094 {
2095         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2096         struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
2097         struct qlcnic_cmd_buffer *pbuf;
2098         struct qlcnic_skb_frag *buffrag;
2099         struct cmd_desc_type0 *hwdesc, *first_desc;
2100         struct pci_dev *pdev;
2101         struct ethhdr *phdr;
2102         int i, k;
2103
2104         u32 producer;
2105         int frag_count, no_of_desc;
2106         u32 num_txd = tx_ring->num_desc;
2107
2108         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
2109                 netif_stop_queue(netdev);
2110                 return NETDEV_TX_BUSY;
2111         }
2112
2113         if (adapter->flags & QLCNIC_MACSPOOF) {
2114                 phdr = (struct ethhdr *)skb->data;
2115                 if (compare_ether_addr(phdr->h_source,
2116                                         adapter->mac_addr))
2117                         goto drop_packet;
2118         }
2119
2120         frag_count = skb_shinfo(skb)->nr_frags + 1;
2121
2122         /* 4 fragments per cmd des */
2123         no_of_desc = (frag_count + 3) >> 2;
2124
2125         if (unlikely(qlcnic_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
2126                 netif_stop_queue(netdev);
2127                 smp_mb();
2128                 if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH)
2129                         netif_start_queue(netdev);
2130                 else {
2131                         adapter->stats.xmit_off++;
2132                         return NETDEV_TX_BUSY;
2133                 }
2134         }
2135
2136         producer = tx_ring->producer;
2137         pbuf = &tx_ring->cmd_buf_arr[producer];
2138
2139         pdev = adapter->pdev;
2140
2141         first_desc = hwdesc = &tx_ring->desc_head[producer];
2142         qlcnic_clear_cmddesc((u64 *)hwdesc);
2143
2144         if (qlcnic_check_tx_tagging(adapter, skb, first_desc))
2145                 goto drop_packet;
2146
2147         if (qlcnic_map_tx_skb(pdev, skb, pbuf)) {
2148                 adapter->stats.tx_dma_map_error++;
2149                 goto drop_packet;
2150         }
2151
2152         pbuf->skb = skb;
2153         pbuf->frag_count = frag_count;
2154
2155         qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len);
2156         qlcnic_set_tx_port(first_desc, adapter->portnum);
2157
2158         for (i = 0; i < frag_count; i++) {
2159
2160                 k = i % 4;
2161
2162                 if ((k == 0) && (i > 0)) {
2163                         /* move to next desc.*/
2164                         producer = get_next_index(producer, num_txd);
2165                         hwdesc = &tx_ring->desc_head[producer];
2166                         qlcnic_clear_cmddesc((u64 *)hwdesc);
2167                         tx_ring->cmd_buf_arr[producer].skb = NULL;
2168                 }
2169
2170                 buffrag = &pbuf->frag_array[i];
2171
2172                 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
2173                 switch (k) {
2174                 case 0:
2175                         hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
2176                         break;
2177                 case 1:
2178                         hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
2179                         break;
2180                 case 2:
2181                         hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
2182                         break;
2183                 case 3:
2184                         hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
2185                         break;
2186                 }
2187         }
2188
2189         tx_ring->producer = get_next_index(producer, num_txd);
2190
2191         qlcnic_tso_check(netdev, tx_ring, first_desc, skb);
2192
2193         if (qlcnic_mac_learn)
2194                 qlcnic_send_filter(adapter, tx_ring, first_desc, skb);
2195
2196         qlcnic_update_cmd_producer(adapter, tx_ring);
2197
2198         adapter->stats.txbytes += skb->len;
2199         adapter->stats.xmitcalled++;
2200
2201         return NETDEV_TX_OK;
2202
2203 drop_packet:
2204         adapter->stats.txdropped++;
2205         dev_kfree_skb_any(skb);
2206         return NETDEV_TX_OK;
2207 }
2208
2209 static int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2210 {
2211         struct net_device *netdev = adapter->netdev;
2212         u32 temp, temp_state, temp_val;
2213         int rv = 0;
2214
2215         temp = QLCRD32(adapter, CRB_TEMP_STATE);
2216
2217         temp_state = qlcnic_get_temp_state(temp);
2218         temp_val = qlcnic_get_temp_val(temp);
2219
2220         if (temp_state == QLCNIC_TEMP_PANIC) {
2221                 dev_err(&netdev->dev,
2222                        "Device temperature %d degrees C exceeds"
2223                        " maximum allowed. Hardware has been shut down.\n",
2224                        temp_val);
2225                 rv = 1;
2226         } else if (temp_state == QLCNIC_TEMP_WARN) {
2227                 if (adapter->temp == QLCNIC_TEMP_NORMAL) {
2228                         dev_err(&netdev->dev,
2229                                "Device temperature %d degrees C "
2230                                "exceeds operating range."
2231                                " Immediate action needed.\n",
2232                                temp_val);
2233                 }
2234         } else {
2235                 if (adapter->temp == QLCNIC_TEMP_WARN) {
2236                         dev_info(&netdev->dev,
2237                                "Device temperature is now %d degrees C"
2238                                " in normal range.\n", temp_val);
2239                 }
2240         }
2241         adapter->temp = temp_state;
2242         return rv;
2243 }
2244
2245 void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup)
2246 {
2247         struct net_device *netdev = adapter->netdev;
2248
2249         if (adapter->ahw.linkup && !linkup) {
2250                 netdev_info(netdev, "NIC Link is down\n");
2251                 adapter->ahw.linkup = 0;
2252                 if (netif_running(netdev)) {
2253                         netif_carrier_off(netdev);
2254                         netif_stop_queue(netdev);
2255                 }
2256         } else if (!adapter->ahw.linkup && linkup) {
2257                 netdev_info(netdev, "NIC Link is up\n");
2258                 adapter->ahw.linkup = 1;
2259                 if (netif_running(netdev)) {
2260                         netif_carrier_on(netdev);
2261                         netif_wake_queue(netdev);
2262                 }
2263         }
2264 }
2265
2266 static void qlcnic_tx_timeout(struct net_device *netdev)
2267 {
2268         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2269
2270         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2271                 return;
2272
2273         dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2274
2275         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
2276                 adapter->need_fw_reset = 1;
2277         else
2278                 adapter->reset_context = 1;
2279 }
2280
2281 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2282 {
2283         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2284         struct net_device_stats *stats = &netdev->stats;
2285
2286         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2287         stats->tx_packets = adapter->stats.xmitfinished;
2288         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2289         stats->tx_bytes = adapter->stats.txbytes;
2290         stats->rx_dropped = adapter->stats.rxdropped;
2291         stats->tx_dropped = adapter->stats.txdropped;
2292
2293         return stats;
2294 }
2295
2296 static irqreturn_t qlcnic_clear_legacy_intr(struct qlcnic_adapter *adapter)
2297 {
2298         u32 status;
2299
2300         status = readl(adapter->isr_int_vec);
2301
2302         if (!(status & adapter->int_vec_bit))
2303                 return IRQ_NONE;
2304
2305         /* check interrupt state machine, to be sure */
2306         status = readl(adapter->crb_int_state_reg);
2307         if (!ISR_LEGACY_INT_TRIGGERED(status))
2308                 return IRQ_NONE;
2309
2310         writel(0xffffffff, adapter->tgt_status_reg);
2311         /* read twice to ensure write is flushed */
2312         readl(adapter->isr_int_vec);
2313         readl(adapter->isr_int_vec);
2314
2315         return IRQ_HANDLED;
2316 }
2317
2318 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2319 {
2320         struct qlcnic_host_sds_ring *sds_ring = data;
2321         struct qlcnic_adapter *adapter = sds_ring->adapter;
2322
2323         if (adapter->flags & QLCNIC_MSIX_ENABLED)
2324                 goto done;
2325         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2326                 writel(0xffffffff, adapter->tgt_status_reg);
2327                 goto done;
2328         }
2329
2330         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2331                 return IRQ_NONE;
2332
2333 done:
2334         adapter->diag_cnt++;
2335         qlcnic_enable_int(sds_ring);
2336         return IRQ_HANDLED;
2337 }
2338
2339 static irqreturn_t qlcnic_intr(int irq, void *data)
2340 {
2341         struct qlcnic_host_sds_ring *sds_ring = data;
2342         struct qlcnic_adapter *adapter = sds_ring->adapter;
2343
2344         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2345                 return IRQ_NONE;
2346
2347         napi_schedule(&sds_ring->napi);
2348
2349         return IRQ_HANDLED;
2350 }
2351
2352 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2353 {
2354         struct qlcnic_host_sds_ring *sds_ring = data;
2355         struct qlcnic_adapter *adapter = sds_ring->adapter;
2356
2357         /* clear interrupt */
2358         writel(0xffffffff, adapter->tgt_status_reg);
2359
2360         napi_schedule(&sds_ring->napi);
2361         return IRQ_HANDLED;
2362 }
2363
2364 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2365 {
2366         struct qlcnic_host_sds_ring *sds_ring = data;
2367
2368         napi_schedule(&sds_ring->napi);
2369         return IRQ_HANDLED;
2370 }
2371
2372 static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter)
2373 {
2374         u32 sw_consumer, hw_consumer;
2375         int count = 0, i;
2376         struct qlcnic_cmd_buffer *buffer;
2377         struct pci_dev *pdev = adapter->pdev;
2378         struct net_device *netdev = adapter->netdev;
2379         struct qlcnic_skb_frag *frag;
2380         int done;
2381         struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
2382
2383         if (!spin_trylock(&adapter->tx_clean_lock))
2384                 return 1;
2385
2386         sw_consumer = tx_ring->sw_consumer;
2387         hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
2388
2389         while (sw_consumer != hw_consumer) {
2390                 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
2391                 if (buffer->skb) {
2392                         frag = &buffer->frag_array[0];
2393                         pci_unmap_single(pdev, frag->dma, frag->length,
2394                                          PCI_DMA_TODEVICE);
2395                         frag->dma = 0ULL;
2396                         for (i = 1; i < buffer->frag_count; i++) {
2397                                 frag++;
2398                                 pci_unmap_page(pdev, frag->dma, frag->length,
2399                                                PCI_DMA_TODEVICE);
2400                                 frag->dma = 0ULL;
2401                         }
2402
2403                         adapter->stats.xmitfinished++;
2404                         dev_kfree_skb_any(buffer->skb);
2405                         buffer->skb = NULL;
2406                 }
2407
2408                 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
2409                 if (++count >= MAX_STATUS_HANDLE)
2410                         break;
2411         }
2412
2413         if (count && netif_running(netdev)) {
2414                 tx_ring->sw_consumer = sw_consumer;
2415
2416                 smp_mb();
2417
2418                 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
2419                         if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) {
2420                                 netif_wake_queue(netdev);
2421                                 adapter->stats.xmit_on++;
2422                         }
2423                 }
2424                 adapter->tx_timeo_cnt = 0;
2425         }
2426         /*
2427          * If everything is freed up to consumer then check if the ring is full
2428          * If the ring is full then check if more needs to be freed and
2429          * schedule the call back again.
2430          *
2431          * This happens when there are 2 CPUs. One could be freeing and the
2432          * other filling it. If the ring is full when we get out of here and
2433          * the card has already interrupted the host then the host can miss the
2434          * interrupt.
2435          *
2436          * There is still a possible race condition and the host could miss an
2437          * interrupt. The card has to take care of this.
2438          */
2439         hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
2440         done = (sw_consumer == hw_consumer);
2441         spin_unlock(&adapter->tx_clean_lock);
2442
2443         return done;
2444 }
2445
2446 static int qlcnic_poll(struct napi_struct *napi, int budget)
2447 {
2448         struct qlcnic_host_sds_ring *sds_ring =
2449                 container_of(napi, struct qlcnic_host_sds_ring, napi);
2450
2451         struct qlcnic_adapter *adapter = sds_ring->adapter;
2452
2453         int tx_complete;
2454         int work_done;
2455
2456         tx_complete = qlcnic_process_cmd_ring(adapter);
2457
2458         work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2459
2460         if ((work_done < budget) && tx_complete) {
2461                 napi_complete(&sds_ring->napi);
2462                 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2463                         qlcnic_enable_int(sds_ring);
2464         }
2465
2466         return work_done;
2467 }
2468
2469 static int qlcnic_rx_poll(struct napi_struct *napi, int budget)
2470 {
2471         struct qlcnic_host_sds_ring *sds_ring =
2472                 container_of(napi, struct qlcnic_host_sds_ring, napi);
2473
2474         struct qlcnic_adapter *adapter = sds_ring->adapter;
2475         int work_done;
2476
2477         work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2478
2479         if (work_done < budget) {
2480                 napi_complete(&sds_ring->napi);
2481                 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2482                         qlcnic_enable_int(sds_ring);
2483         }
2484
2485         return work_done;
2486 }
2487
2488 #ifdef CONFIG_NET_POLL_CONTROLLER
2489 static void qlcnic_poll_controller(struct net_device *netdev)
2490 {
2491         int ring;
2492         struct qlcnic_host_sds_ring *sds_ring;
2493         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2494         struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
2495
2496         disable_irq(adapter->irq);
2497         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2498                 sds_ring = &recv_ctx->sds_rings[ring];
2499                 qlcnic_intr(adapter->irq, sds_ring);
2500         }
2501         enable_irq(adapter->irq);
2502 }
2503 #endif
2504
2505 static void
2506 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2507 {
2508         u32 val;
2509
2510         val = adapter->portnum & 0xf;
2511         val |= encoding << 7;
2512         val |= (jiffies - adapter->dev_rst_time) << 8;
2513
2514         QLCWR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2515         adapter->dev_rst_time = jiffies;
2516 }
2517
2518 static int
2519 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2520 {
2521         u32  val;
2522
2523         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2524                         state != QLCNIC_DEV_NEED_QUISCENT);
2525
2526         if (qlcnic_api_lock(adapter))
2527                 return -EIO;
2528
2529         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2530
2531         if (state == QLCNIC_DEV_NEED_RESET)
2532                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2533         else if (state == QLCNIC_DEV_NEED_QUISCENT)
2534                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2535
2536         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2537
2538         qlcnic_api_unlock(adapter);
2539
2540         return 0;
2541 }
2542
2543 static int
2544 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2545 {
2546         u32  val;
2547
2548         if (qlcnic_api_lock(adapter))
2549                 return -EBUSY;
2550
2551         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2552         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2553         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2554
2555         qlcnic_api_unlock(adapter);
2556
2557         return 0;
2558 }
2559
2560 static void
2561 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2562 {
2563         u32  val;
2564
2565         if (qlcnic_api_lock(adapter))
2566                 goto err;
2567
2568         val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2569         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2570         QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2571
2572         if (failed) {
2573                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
2574                 dev_info(&adapter->pdev->dev,
2575                                 "Device state set to Failed. Please Reboot\n");
2576         } else if (!(val & 0x11111111))
2577                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_COLD);
2578
2579         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2580         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2581         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2582
2583         qlcnic_api_unlock(adapter);
2584 err:
2585         adapter->fw_fail_cnt = 0;
2586         clear_bit(__QLCNIC_START_FW, &adapter->state);
2587         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2588 }
2589
2590 /* Grab api lock, before checking state */
2591 static int
2592 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2593 {
2594         int act, state;
2595
2596         state = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2597         act = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2598
2599         if (((state & 0x11111111) == (act & 0x11111111)) ||
2600                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2601                 return 0;
2602         else
2603                 return 1;
2604 }
2605
2606 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2607 {
2608         u32 val = QLCRD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2609
2610         if (val != QLCNIC_DRV_IDC_VER) {
2611                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2612                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2613         }
2614
2615         return 0;
2616 }
2617
2618 static int
2619 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2620 {
2621         u32 val, prev_state;
2622         u8 dev_init_timeo = adapter->dev_init_timeo;
2623         u8 portnum = adapter->portnum;
2624         u8 ret;
2625
2626         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2627                 return 1;
2628
2629         if (qlcnic_api_lock(adapter))
2630                 return -1;
2631
2632         val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2633         if (!(val & (1 << (portnum * 4)))) {
2634                 QLC_DEV_SET_REF_CNT(val, portnum);
2635                 QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2636         }
2637
2638         prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2639         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2640
2641         switch (prev_state) {
2642         case QLCNIC_DEV_COLD:
2643                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
2644                 QLCWR32(adapter, QLCNIC_CRB_DRV_IDC_VER, QLCNIC_DRV_IDC_VER);
2645                 qlcnic_idc_debug_info(adapter, 0);
2646                 qlcnic_api_unlock(adapter);
2647                 return 1;
2648
2649         case QLCNIC_DEV_READY:
2650                 ret = qlcnic_check_idc_ver(adapter);
2651                 qlcnic_api_unlock(adapter);
2652                 return ret;
2653
2654         case QLCNIC_DEV_NEED_RESET:
2655                 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2656                 QLC_DEV_SET_RST_RDY(val, portnum);
2657                 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2658                 break;
2659
2660         case QLCNIC_DEV_NEED_QUISCENT:
2661                 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2662                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
2663                 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2664                 break;
2665
2666         case QLCNIC_DEV_FAILED:
2667                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
2668                 qlcnic_api_unlock(adapter);
2669                 return -1;
2670
2671         case QLCNIC_DEV_INITIALIZING:
2672         case QLCNIC_DEV_QUISCENT:
2673                 break;
2674         }
2675
2676         qlcnic_api_unlock(adapter);
2677
2678         do {
2679                 msleep(1000);
2680                 prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2681
2682                 if (prev_state == QLCNIC_DEV_QUISCENT)
2683                         continue;
2684         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
2685
2686         if (!dev_init_timeo) {
2687                 dev_err(&adapter->pdev->dev,
2688                         "Waiting for device to initialize timeout\n");
2689                 return -1;
2690         }
2691
2692         if (qlcnic_api_lock(adapter))
2693                 return -1;
2694
2695         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2696         QLC_DEV_CLR_RST_QSCNT(val, portnum);
2697         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2698
2699         ret = qlcnic_check_idc_ver(adapter);
2700         qlcnic_api_unlock(adapter);
2701
2702         return ret;
2703 }
2704
2705 static void
2706 qlcnic_fwinit_work(struct work_struct *work)
2707 {
2708         struct qlcnic_adapter *adapter = container_of(work,
2709                         struct qlcnic_adapter, fw_work.work);
2710         u32 dev_state = 0xf;
2711
2712         if (qlcnic_api_lock(adapter))
2713                 goto err_ret;
2714
2715         dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2716         if (dev_state == QLCNIC_DEV_QUISCENT ||
2717             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2718                 qlcnic_api_unlock(adapter);
2719                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2720                                                 FW_POLL_DELAY * 2);
2721                 return;
2722         }
2723
2724         if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC) {
2725                 qlcnic_api_unlock(adapter);
2726                 goto wait_npar;
2727         }
2728
2729         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2730                 dev_err(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2731                                         adapter->reset_ack_timeo);
2732                 goto skip_ack_check;
2733         }
2734
2735         if (!qlcnic_check_drv_state(adapter)) {
2736 skip_ack_check:
2737                 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2738
2739                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2740                         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE,
2741                                                 QLCNIC_DEV_INITIALIZING);
2742                         set_bit(__QLCNIC_START_FW, &adapter->state);
2743                         QLCDB(adapter, DRV, "Restarting fw\n");
2744                         qlcnic_idc_debug_info(adapter, 0);
2745                 }
2746
2747                 qlcnic_api_unlock(adapter);
2748
2749                 if (!adapter->nic_ops->start_firmware(adapter)) {
2750                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2751                         adapter->fw_wait_cnt = 0;
2752                         return;
2753                 }
2754                 goto err_ret;
2755         }
2756
2757         qlcnic_api_unlock(adapter);
2758
2759 wait_npar:
2760         dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2761         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
2762
2763         switch (dev_state) {
2764         case QLCNIC_DEV_READY:
2765                 if (!adapter->nic_ops->start_firmware(adapter)) {
2766                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2767                         adapter->fw_wait_cnt = 0;
2768                         return;
2769                 }
2770         case QLCNIC_DEV_FAILED:
2771                 break;
2772         default:
2773                 qlcnic_schedule_work(adapter,
2774                         qlcnic_fwinit_work, FW_POLL_DELAY);
2775                 return;
2776         }
2777
2778 err_ret:
2779         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2780                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
2781         netif_device_attach(adapter->netdev);
2782         qlcnic_clr_all_drv_state(adapter, 0);
2783 }
2784
2785 static void
2786 qlcnic_detach_work(struct work_struct *work)
2787 {
2788         struct qlcnic_adapter *adapter = container_of(work,
2789                         struct qlcnic_adapter, fw_work.work);
2790         struct net_device *netdev = adapter->netdev;
2791         u32 status;
2792
2793         netif_device_detach(netdev);
2794
2795         /* Dont grab rtnl lock during Quiscent mode */
2796         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2797                 if (netif_running(netdev))
2798                         __qlcnic_down(adapter, netdev);
2799         } else
2800                 qlcnic_down(adapter, netdev);
2801
2802         status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2803
2804         if (status & QLCNIC_RCODE_FATAL_ERROR)
2805                 goto err_ret;
2806
2807         if (adapter->temp == QLCNIC_TEMP_PANIC)
2808                 goto err_ret;
2809
2810         if (qlcnic_set_drv_state(adapter, adapter->dev_state))
2811                 goto err_ret;
2812
2813         adapter->fw_wait_cnt = 0;
2814
2815         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2816
2817         return;
2818
2819 err_ret:
2820         dev_err(&adapter->pdev->dev, "detach failed; status=%d temp=%d\n",
2821                         status, adapter->temp);
2822         netif_device_attach(netdev);
2823         qlcnic_clr_all_drv_state(adapter, 1);
2824 }
2825
2826 /*Transit NPAR state to NON Operational */
2827 static void
2828 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
2829 {
2830         u32 state;
2831
2832         state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2833         if (state == QLCNIC_DEV_NPAR_NON_OPER)
2834                 return;
2835
2836         if (qlcnic_api_lock(adapter))
2837                 return;
2838         QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
2839         qlcnic_api_unlock(adapter);
2840 }
2841
2842 /*Transit to RESET state from READY state only */
2843 static void
2844 qlcnic_dev_request_reset(struct qlcnic_adapter *adapter)
2845 {
2846         u32 state;
2847
2848         adapter->need_fw_reset = 1;
2849         if (qlcnic_api_lock(adapter))
2850                 return;
2851
2852         state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2853
2854         if (state == QLCNIC_DEV_READY) {
2855                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_RESET);
2856                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
2857                 qlcnic_idc_debug_info(adapter, 0);
2858         }
2859
2860         QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
2861         qlcnic_api_unlock(adapter);
2862 }
2863
2864 /* Transit to NPAR READY state from NPAR NOT READY state */
2865 static void
2866 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
2867 {
2868         if (qlcnic_api_lock(adapter))
2869                 return;
2870
2871         QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_OPER);
2872         QLCDB(adapter, DRV, "NPAR operational state set\n");
2873
2874         qlcnic_api_unlock(adapter);
2875 }
2876
2877 static void
2878 qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2879                 work_func_t func, int delay)
2880 {
2881         if (test_bit(__QLCNIC_AER, &adapter->state))
2882                 return;
2883
2884         INIT_DELAYED_WORK(&adapter->fw_work, func);
2885         queue_delayed_work(qlcnic_wq, &adapter->fw_work,
2886                                         round_jiffies_relative(delay));
2887 }
2888
2889 static void
2890 qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter)
2891 {
2892         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2893                 msleep(10);
2894
2895         cancel_delayed_work_sync(&adapter->fw_work);
2896 }
2897
2898 static void
2899 qlcnic_attach_work(struct work_struct *work)
2900 {
2901         struct qlcnic_adapter *adapter = container_of(work,
2902                                 struct qlcnic_adapter, fw_work.work);
2903         struct net_device *netdev = adapter->netdev;
2904         u32 npar_state;
2905
2906         if (adapter->op_mode != QLCNIC_MGMT_FUNC) {
2907                 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2908                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
2909                         qlcnic_clr_all_drv_state(adapter, 0);
2910                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
2911                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
2912                                                         FW_POLL_DELAY);
2913                 else
2914                         goto attach;
2915                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
2916                 return;
2917         }
2918 attach:
2919         if (netif_running(netdev)) {
2920                 if (qlcnic_up(adapter, netdev))
2921                         goto done;
2922
2923                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2924         }
2925
2926 done:
2927         netif_device_attach(netdev);
2928         adapter->fw_fail_cnt = 0;
2929         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2930
2931         if (!qlcnic_clr_drv_state(adapter))
2932                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2933                                                         FW_POLL_DELAY);
2934 }
2935
2936 static int
2937 qlcnic_check_health(struct qlcnic_adapter *adapter)
2938 {
2939         u32 state = 0, heartbeat;
2940         struct net_device *netdev = adapter->netdev;
2941
2942         if (qlcnic_check_temp(adapter))
2943                 goto detach;
2944
2945         if (adapter->need_fw_reset)
2946                 qlcnic_dev_request_reset(adapter);
2947
2948         state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2949         if (state == QLCNIC_DEV_NEED_RESET) {
2950                 qlcnic_set_npar_non_operational(adapter);
2951                 adapter->need_fw_reset = 1;
2952         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
2953                 goto detach;
2954
2955         heartbeat = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
2956         if (heartbeat != adapter->heartbeat) {
2957                 adapter->heartbeat = heartbeat;
2958                 adapter->fw_fail_cnt = 0;
2959                 if (adapter->need_fw_reset)
2960                         goto detach;
2961
2962                 if (adapter->reset_context && auto_fw_reset) {
2963                         qlcnic_reset_hw_context(adapter);
2964                         adapter->netdev->trans_start = jiffies;
2965                 }
2966
2967                 return 0;
2968         }
2969
2970         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2971                 return 0;
2972
2973         qlcnic_dev_request_reset(adapter);
2974
2975         if (auto_fw_reset)
2976                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
2977
2978         dev_info(&netdev->dev, "firmware hang detected\n");
2979
2980 detach:
2981         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
2982                 QLCNIC_DEV_NEED_RESET;
2983
2984         if (auto_fw_reset &&
2985                 !test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) {
2986
2987                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
2988                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
2989         }
2990
2991         return 1;
2992 }
2993
2994 static void
2995 qlcnic_fw_poll_work(struct work_struct *work)
2996 {
2997         struct qlcnic_adapter *adapter = container_of(work,
2998                                 struct qlcnic_adapter, fw_work.work);
2999
3000         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3001                 goto reschedule;
3002
3003
3004         if (qlcnic_check_health(adapter))
3005                 return;
3006
3007         if (adapter->fhash.fnum)
3008                 qlcnic_prune_lb_filters(adapter);
3009
3010 reschedule:
3011         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3012 }
3013
3014 static int qlcnic_is_first_func(struct pci_dev *pdev)
3015 {
3016         struct pci_dev *oth_pdev;
3017         int val = pdev->devfn;
3018
3019         while (val-- > 0) {
3020                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3021                         (pdev->bus), pdev->bus->number,
3022                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3023                 if (!oth_pdev)
3024                         continue;
3025
3026                 if (oth_pdev->current_state != PCI_D3cold) {
3027                         pci_dev_put(oth_pdev);
3028                         return 0;
3029                 }
3030                 pci_dev_put(oth_pdev);
3031         }
3032         return 1;
3033 }
3034
3035 static int qlcnic_attach_func(struct pci_dev *pdev)
3036 {
3037         int err, first_func;
3038         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3039         struct net_device *netdev = adapter->netdev;
3040
3041         pdev->error_state = pci_channel_io_normal;
3042
3043         err = pci_enable_device(pdev);
3044         if (err)
3045                 return err;
3046
3047         pci_set_power_state(pdev, PCI_D0);
3048         pci_set_master(pdev);
3049         pci_restore_state(pdev);
3050
3051         first_func = qlcnic_is_first_func(pdev);
3052
3053         if (qlcnic_api_lock(adapter))
3054                 return -EINVAL;
3055
3056         if (adapter->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3057                 adapter->need_fw_reset = 1;
3058                 set_bit(__QLCNIC_START_FW, &adapter->state);
3059                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
3060                 QLCDB(adapter, DRV, "Restarting fw\n");
3061         }
3062         qlcnic_api_unlock(adapter);
3063
3064         err = adapter->nic_ops->start_firmware(adapter);
3065         if (err)
3066                 return err;
3067
3068         qlcnic_clr_drv_state(adapter);
3069         qlcnic_setup_intr(adapter);
3070
3071         if (netif_running(netdev)) {
3072                 err = qlcnic_attach(adapter);
3073                 if (err) {
3074                         qlcnic_clr_all_drv_state(adapter, 1);
3075                         clear_bit(__QLCNIC_AER, &adapter->state);
3076                         netif_device_attach(netdev);
3077                         return err;
3078                 }
3079
3080                 err = qlcnic_up(adapter, netdev);
3081                 if (err)
3082                         goto done;
3083
3084                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3085         }
3086  done:
3087         netif_device_attach(netdev);
3088         return err;
3089 }
3090
3091 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3092                                                 pci_channel_state_t state)
3093 {
3094         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3095         struct net_device *netdev = adapter->netdev;
3096
3097         if (state == pci_channel_io_perm_failure)
3098                 return PCI_ERS_RESULT_DISCONNECT;
3099
3100         if (state == pci_channel_io_normal)
3101                 return PCI_ERS_RESULT_RECOVERED;
3102
3103         set_bit(__QLCNIC_AER, &adapter->state);
3104         netif_device_detach(netdev);
3105
3106         cancel_delayed_work_sync(&adapter->fw_work);
3107
3108         if (netif_running(netdev))
3109                 qlcnic_down(adapter, netdev);
3110
3111         qlcnic_detach(adapter);
3112         qlcnic_teardown_intr(adapter);
3113
3114         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3115
3116         pci_save_state(pdev);
3117         pci_disable_device(pdev);
3118
3119         return PCI_ERS_RESULT_NEED_RESET;
3120 }
3121
3122 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3123 {
3124         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3125                                 PCI_ERS_RESULT_RECOVERED;
3126 }
3127
3128 static void qlcnic_io_resume(struct pci_dev *pdev)
3129 {
3130         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3131
3132         pci_cleanup_aer_uncorrect_error_status(pdev);
3133
3134         if (QLCRD32(adapter, QLCNIC_CRB_DEV_STATE) == QLCNIC_DEV_READY &&
3135             test_and_clear_bit(__QLCNIC_AER, &adapter->state))
3136                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3137                                                 FW_POLL_DELAY);
3138 }
3139
3140 static int
3141 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3142 {
3143         int err;
3144
3145         err = qlcnic_can_start_firmware(adapter);
3146         if (err)
3147                 return err;
3148
3149         err = qlcnic_check_npar_opertional(adapter);
3150         if (err)
3151                 return err;
3152
3153         err = qlcnic_initialize_nic(adapter);
3154         if (err)
3155                 return err;
3156
3157         qlcnic_check_options(adapter);
3158
3159         err = qlcnic_set_eswitch_port_config(adapter);
3160         if (err)
3161                 return err;
3162
3163         adapter->need_fw_reset = 0;
3164
3165         return err;
3166 }
3167
3168 static int
3169 qlcnicvf_config_bridged_mode(struct qlcnic_adapter *adapter, u32 enable)
3170 {
3171         return -EOPNOTSUPP;
3172 }
3173
3174 static int
3175 qlcnicvf_config_led(struct qlcnic_adapter *adapter, u32 state, u32 rate)
3176 {
3177         return -EOPNOTSUPP;
3178 }
3179
3180 static ssize_t
3181 qlcnic_store_bridged_mode(struct device *dev,
3182                 struct device_attribute *attr, const char *buf, size_t len)
3183 {
3184         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3185         unsigned long new;
3186         int ret = -EINVAL;
3187
3188         if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG))
3189                 goto err_out;
3190
3191         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3192                 goto err_out;
3193
3194         if (strict_strtoul(buf, 2, &new))
3195                 goto err_out;
3196
3197         if (!adapter->nic_ops->config_bridged_mode(adapter, !!new))
3198                 ret = len;
3199
3200 err_out:
3201         return ret;
3202 }
3203
3204 static ssize_t
3205 qlcnic_show_bridged_mode(struct device *dev,
3206                 struct device_attribute *attr, char *buf)
3207 {
3208         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3209         int bridged_mode = 0;
3210
3211         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
3212                 bridged_mode = !!(adapter->flags & QLCNIC_BRIDGE_ENABLED);
3213
3214         return sprintf(buf, "%d\n", bridged_mode);
3215 }
3216
3217 static struct device_attribute dev_attr_bridged_mode = {
3218        .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
3219        .show = qlcnic_show_bridged_mode,
3220        .store = qlcnic_store_bridged_mode,
3221 };
3222
3223 static ssize_t
3224 qlcnic_store_diag_mode(struct device *dev,
3225                 struct device_attribute *attr, const char *buf, size_t len)
3226 {
3227         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3228         unsigned long new;
3229
3230         if (strict_strtoul(buf, 2, &new))
3231                 return -EINVAL;
3232
3233         if (!!new != !!(adapter->flags & QLCNIC_DIAG_ENABLED))
3234                 adapter->flags ^= QLCNIC_DIAG_ENABLED;
3235
3236         return len;
3237 }
3238
3239 static ssize_t
3240 qlcnic_show_diag_mode(struct device *dev,
3241                 struct device_attribute *attr, char *buf)
3242 {
3243         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3244
3245         return sprintf(buf, "%d\n",
3246                         !!(adapter->flags & QLCNIC_DIAG_ENABLED));
3247 }
3248
3249 static struct device_attribute dev_attr_diag_mode = {
3250         .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
3251         .show = qlcnic_show_diag_mode,
3252         .store = qlcnic_store_diag_mode,
3253 };
3254
3255 static int
3256 qlcnic_sysfs_validate_crb(struct qlcnic_adapter *adapter,
3257                 loff_t offset, size_t size)
3258 {
3259         size_t crb_size = 4;
3260
3261         if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
3262                 return -EIO;
3263
3264         if (offset < QLCNIC_PCI_CRBSPACE) {
3265                 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM,
3266                                         QLCNIC_PCI_CAMQM_END))
3267                         crb_size = 8;
3268                 else
3269                         return -EINVAL;
3270         }
3271
3272         if ((size != crb_size) || (offset & (crb_size-1)))
3273                 return  -EINVAL;
3274
3275         return 0;
3276 }
3277
3278 static ssize_t
3279 qlcnic_sysfs_read_crb(struct file *filp, struct kobject *kobj,
3280                 struct bin_attribute *attr,
3281                 char *buf, loff_t offset, size_t size)
3282 {
3283         struct device *dev = container_of(kobj, struct device, kobj);
3284         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3285         u32 data;
3286         u64 qmdata;
3287         int ret;
3288
3289         ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
3290         if (ret != 0)
3291                 return ret;
3292
3293         if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
3294                 qlcnic_pci_camqm_read_2M(adapter, offset, &qmdata);
3295                 memcpy(buf, &qmdata, size);
3296         } else {
3297                 data = QLCRD32(adapter, offset);
3298                 memcpy(buf, &data, size);
3299         }
3300         return size;
3301 }
3302
3303 static ssize_t
3304 qlcnic_sysfs_write_crb(struct file *filp, struct kobject *kobj,
3305                 struct bin_attribute *attr,
3306                 char *buf, loff_t offset, size_t size)
3307 {
3308         struct device *dev = container_of(kobj, struct device, kobj);
3309         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3310         u32 data;
3311         u64 qmdata;
3312         int ret;
3313
3314         ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
3315         if (ret != 0)
3316                 return ret;
3317
3318         if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
3319                 memcpy(&qmdata, buf, size);
3320                 qlcnic_pci_camqm_write_2M(adapter, offset, qmdata);
3321         } else {
3322                 memcpy(&data, buf, size);
3323                 QLCWR32(adapter, offset, data);
3324         }
3325         return size;
3326 }
3327
3328 static int
3329 qlcnic_sysfs_validate_mem(struct qlcnic_adapter *adapter,
3330                 loff_t offset, size_t size)
3331 {
3332         if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
3333                 return -EIO;
3334
3335         if ((size != 8) || (offset & 0x7))
3336                 return  -EIO;
3337
3338         return 0;
3339 }
3340
3341 static ssize_t
3342 qlcnic_sysfs_read_mem(struct file *filp, struct kobject *kobj,
3343                 struct bin_attribute *attr,
3344                 char *buf, loff_t offset, size_t size)
3345 {
3346         struct device *dev = container_of(kobj, struct device, kobj);
3347         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3348         u64 data;
3349         int ret;
3350
3351         ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
3352         if (ret != 0)
3353                 return ret;
3354
3355         if (qlcnic_pci_mem_read_2M(adapter, offset, &data))
3356                 return -EIO;
3357
3358         memcpy(buf, &data, size);
3359
3360         return size;
3361 }
3362
3363 static ssize_t
3364 qlcnic_sysfs_write_mem(struct file *filp, struct kobject *kobj,
3365                 struct bin_attribute *attr,
3366                 char *buf, loff_t offset, size_t size)
3367 {
3368         struct device *dev = container_of(kobj, struct device, kobj);
3369         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3370         u64 data;
3371         int ret;
3372
3373         ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
3374         if (ret != 0)
3375                 return ret;
3376
3377         memcpy(&data, buf, size);
3378
3379         if (qlcnic_pci_mem_write_2M(adapter, offset, data))
3380                 return -EIO;
3381
3382         return size;
3383 }
3384
3385
3386 static struct bin_attribute bin_attr_crb = {
3387         .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
3388         .size = 0,
3389         .read = qlcnic_sysfs_read_crb,
3390         .write = qlcnic_sysfs_write_crb,
3391 };
3392
3393 static struct bin_attribute bin_attr_mem = {
3394         .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
3395         .size = 0,
3396         .read = qlcnic_sysfs_read_mem,
3397         .write = qlcnic_sysfs_write_mem,
3398 };
3399
3400 static int
3401 validate_pm_config(struct qlcnic_adapter *adapter,
3402                         struct qlcnic_pm_func_cfg *pm_cfg, int count)
3403 {
3404
3405         u8 src_pci_func, s_esw_id, d_esw_id;
3406         u8 dest_pci_func;
3407         int i;
3408
3409         for (i = 0; i < count; i++) {
3410                 src_pci_func = pm_cfg[i].pci_func;
3411                 dest_pci_func = pm_cfg[i].dest_npar;
3412                 if (src_pci_func >= QLCNIC_MAX_PCI_FUNC
3413                                 || dest_pci_func >= QLCNIC_MAX_PCI_FUNC)
3414                         return QL_STATUS_INVALID_PARAM;
3415
3416                 if (adapter->npars[src_pci_func].type != QLCNIC_TYPE_NIC)
3417                         return QL_STATUS_INVALID_PARAM;
3418
3419                 if (adapter->npars[dest_pci_func].type != QLCNIC_TYPE_NIC)
3420                         return QL_STATUS_INVALID_PARAM;
3421
3422                 s_esw_id = adapter->npars[src_pci_func].phy_port;
3423                 d_esw_id = adapter->npars[dest_pci_func].phy_port;
3424
3425                 if (s_esw_id != d_esw_id)
3426                         return QL_STATUS_INVALID_PARAM;
3427
3428         }
3429         return 0;
3430
3431 }
3432
3433 static ssize_t
3434 qlcnic_sysfs_write_pm_config(struct file *filp, struct kobject *kobj,
3435         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3436 {
3437         struct device *dev = container_of(kobj, struct device, kobj);
3438         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3439         struct qlcnic_pm_func_cfg *pm_cfg;
3440         u32 id, action, pci_func;
3441         int count, rem, i, ret;
3442
3443         count   = size / sizeof(struct qlcnic_pm_func_cfg);
3444         rem     = size % sizeof(struct qlcnic_pm_func_cfg);
3445         if (rem)
3446                 return QL_STATUS_INVALID_PARAM;
3447
3448         pm_cfg = (struct qlcnic_pm_func_cfg *) buf;
3449
3450         ret = validate_pm_config(adapter, pm_cfg, count);
3451         if (ret)
3452                 return ret;
3453         for (i = 0; i < count; i++) {
3454                 pci_func = pm_cfg[i].pci_func;
3455                 action = !!pm_cfg[i].action;
3456                 id = adapter->npars[pci_func].phy_port;
3457                 ret = qlcnic_config_port_mirroring(adapter, id,
3458                                                 action, pci_func);
3459                 if (ret)
3460                         return ret;
3461         }
3462
3463         for (i = 0; i < count; i++) {
3464                 pci_func = pm_cfg[i].pci_func;
3465                 id = adapter->npars[pci_func].phy_port;
3466                 adapter->npars[pci_func].enable_pm = !!pm_cfg[i].action;
3467                 adapter->npars[pci_func].dest_npar = id;
3468         }
3469         return size;
3470 }
3471
3472 static ssize_t
3473 qlcnic_sysfs_read_pm_config(struct file *filp, struct kobject *kobj,
3474         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3475 {
3476         struct device *dev = container_of(kobj, struct device, kobj);
3477         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3478         struct qlcnic_pm_func_cfg pm_cfg[QLCNIC_MAX_PCI_FUNC];
3479         int i;
3480
3481         if (size != sizeof(pm_cfg))
3482                 return QL_STATUS_INVALID_PARAM;
3483
3484         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
3485                 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3486                         continue;
3487                 pm_cfg[i].action = adapter->npars[i].enable_pm;
3488                 pm_cfg[i].dest_npar = 0;
3489                 pm_cfg[i].pci_func = i;
3490         }
3491         memcpy(buf, &pm_cfg, size);
3492
3493         return size;
3494 }
3495
3496 static int
3497 validate_esw_config(struct qlcnic_adapter *adapter,
3498         struct qlcnic_esw_func_cfg *esw_cfg, int count)
3499 {
3500         u32 op_mode;
3501         u8 pci_func;
3502         int i;
3503
3504         op_mode = readl(adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE);
3505
3506         for (i = 0; i < count; i++) {
3507                 pci_func = esw_cfg[i].pci_func;
3508                 if (pci_func >= QLCNIC_MAX_PCI_FUNC)
3509                         return QL_STATUS_INVALID_PARAM;
3510
3511                 if (adapter->op_mode == QLCNIC_MGMT_FUNC)
3512                         if (adapter->npars[pci_func].type != QLCNIC_TYPE_NIC)
3513                                 return QL_STATUS_INVALID_PARAM;
3514
3515                 switch (esw_cfg[i].op_mode) {
3516                 case QLCNIC_PORT_DEFAULTS:
3517                         if (QLC_DEV_GET_DRV(op_mode, pci_func) !=
3518                                                 QLCNIC_NON_PRIV_FUNC) {
3519                                 if (esw_cfg[i].mac_anti_spoof != 0)
3520                                         return QL_STATUS_INVALID_PARAM;
3521                                 if (esw_cfg[i].mac_override != 1)
3522                                         return QL_STATUS_INVALID_PARAM;
3523                                 if (esw_cfg[i].promisc_mode != 1)
3524                                         return QL_STATUS_INVALID_PARAM;
3525                         }
3526                         break;
3527                 case QLCNIC_ADD_VLAN:
3528                         if (!IS_VALID_VLAN(esw_cfg[i].vlan_id))
3529                                 return QL_STATUS_INVALID_PARAM;
3530                         if (!esw_cfg[i].op_type)
3531                                 return QL_STATUS_INVALID_PARAM;
3532                         break;
3533                 case QLCNIC_DEL_VLAN:
3534                         if (!esw_cfg[i].op_type)
3535                                 return QL_STATUS_INVALID_PARAM;
3536                         break;
3537                 default:
3538                         return QL_STATUS_INVALID_PARAM;
3539                 }
3540         }
3541         return 0;
3542 }
3543
3544 static ssize_t
3545 qlcnic_sysfs_write_esw_config(struct file *file, struct kobject *kobj,
3546         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3547 {
3548         struct device *dev = container_of(kobj, struct device, kobj);
3549         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3550         struct qlcnic_esw_func_cfg *esw_cfg;
3551         struct qlcnic_npar_info *npar;
3552         int count, rem, i, ret;
3553         u8 pci_func, op_mode = 0;
3554
3555         count   = size / sizeof(struct qlcnic_esw_func_cfg);
3556         rem     = size % sizeof(struct qlcnic_esw_func_cfg);
3557         if (rem)
3558                 return QL_STATUS_INVALID_PARAM;
3559
3560         esw_cfg = (struct qlcnic_esw_func_cfg *) buf;
3561         ret = validate_esw_config(adapter, esw_cfg, count);
3562         if (ret)
3563                 return ret;
3564
3565         for (i = 0; i < count; i++) {
3566                 if (adapter->op_mode == QLCNIC_MGMT_FUNC)
3567                         if (qlcnic_config_switch_port(adapter, &esw_cfg[i]))
3568                                 return QL_STATUS_INVALID_PARAM;
3569
3570                 if (adapter->ahw.pci_func != esw_cfg[i].pci_func)
3571                         continue;
3572
3573                 op_mode = esw_cfg[i].op_mode;
3574                 qlcnic_get_eswitch_port_config(adapter, &esw_cfg[i]);
3575                 esw_cfg[i].op_mode = op_mode;
3576                 esw_cfg[i].pci_func = adapter->ahw.pci_func;
3577
3578                 switch (esw_cfg[i].op_mode) {
3579                 case QLCNIC_PORT_DEFAULTS:
3580                         qlcnic_set_eswitch_port_features(adapter, &esw_cfg[i]);
3581                         break;
3582                 case QLCNIC_ADD_VLAN:
3583                         qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
3584                         break;
3585                 case QLCNIC_DEL_VLAN:
3586                         esw_cfg[i].vlan_id = 0;
3587                         qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
3588                         break;
3589                 }
3590         }
3591
3592         if (adapter->op_mode != QLCNIC_MGMT_FUNC)
3593                 goto out;
3594
3595         for (i = 0; i < count; i++) {
3596                 pci_func = esw_cfg[i].pci_func;
3597                 npar = &adapter->npars[pci_func];
3598                 switch (esw_cfg[i].op_mode) {
3599                 case QLCNIC_PORT_DEFAULTS:
3600                         npar->promisc_mode = esw_cfg[i].promisc_mode;
3601                         npar->mac_override = esw_cfg[i].mac_override;
3602                         npar->offload_flags = esw_cfg[i].offload_flags;
3603                         npar->mac_anti_spoof = esw_cfg[i].mac_anti_spoof;
3604                         npar->discard_tagged = esw_cfg[i].discard_tagged;
3605                         break;
3606                 case QLCNIC_ADD_VLAN:
3607                         npar->pvid = esw_cfg[i].vlan_id;
3608                         break;
3609                 case QLCNIC_DEL_VLAN:
3610                         npar->pvid = 0;
3611                         break;
3612                 }
3613         }
3614 out:
3615         return size;
3616 }
3617
3618 static ssize_t
3619 qlcnic_sysfs_read_esw_config(struct file *file, struct kobject *kobj,
3620         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3621 {
3622         struct device *dev = container_of(kobj, struct device, kobj);
3623         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3624         struct qlcnic_esw_func_cfg esw_cfg[QLCNIC_MAX_PCI_FUNC];
3625         u8 i;
3626
3627         if (size != sizeof(esw_cfg))
3628                 return QL_STATUS_INVALID_PARAM;
3629
3630         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
3631                 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3632                         continue;
3633                 esw_cfg[i].pci_func = i;
3634                 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg[i]))
3635                         return QL_STATUS_INVALID_PARAM;
3636         }
3637         memcpy(buf, &esw_cfg, size);
3638
3639         return size;
3640 }
3641
3642 static int
3643 validate_npar_config(struct qlcnic_adapter *adapter,
3644                                 struct qlcnic_npar_func_cfg *np_cfg, int count)
3645 {
3646         u8 pci_func, i;
3647
3648         for (i = 0; i < count; i++) {
3649                 pci_func = np_cfg[i].pci_func;
3650                 if (pci_func >= QLCNIC_MAX_PCI_FUNC)
3651                         return QL_STATUS_INVALID_PARAM;
3652
3653                 if (adapter->npars[pci_func].type != QLCNIC_TYPE_NIC)
3654                         return QL_STATUS_INVALID_PARAM;
3655
3656                 if (!IS_VALID_BW(np_cfg[i].min_bw) ||
3657                     !IS_VALID_BW(np_cfg[i].max_bw))
3658                         return QL_STATUS_INVALID_PARAM;
3659         }
3660         return 0;
3661 }
3662
3663 static ssize_t
3664 qlcnic_sysfs_write_npar_config(struct file *file, struct kobject *kobj,
3665         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3666 {
3667         struct device *dev = container_of(kobj, struct device, kobj);
3668         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3669         struct qlcnic_info nic_info;
3670         struct qlcnic_npar_func_cfg *np_cfg;
3671         int i, count, rem, ret;
3672         u8 pci_func;
3673
3674         count   = size / sizeof(struct qlcnic_npar_func_cfg);
3675         rem     = size % sizeof(struct qlcnic_npar_func_cfg);
3676         if (rem)
3677                 return QL_STATUS_INVALID_PARAM;
3678
3679         np_cfg = (struct qlcnic_npar_func_cfg *) buf;
3680         ret = validate_npar_config(adapter, np_cfg, count);
3681         if (ret)
3682                 return ret;
3683
3684         for (i = 0; i < count ; i++) {
3685                 pci_func = np_cfg[i].pci_func;
3686                 ret = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
3687                 if (ret)
3688                         return ret;
3689                 nic_info.pci_func = pci_func;
3690                 nic_info.min_tx_bw = np_cfg[i].min_bw;
3691                 nic_info.max_tx_bw = np_cfg[i].max_bw;
3692                 ret = qlcnic_set_nic_info(adapter, &nic_info);
3693                 if (ret)
3694                         return ret;
3695                 adapter->npars[i].min_bw = nic_info.min_tx_bw;
3696                 adapter->npars[i].max_bw = nic_info.max_tx_bw;
3697         }
3698
3699         return size;
3700
3701 }
3702 static ssize_t
3703 qlcnic_sysfs_read_npar_config(struct file *file, struct kobject *kobj,
3704         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3705 {
3706         struct device *dev = container_of(kobj, struct device, kobj);
3707         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3708         struct qlcnic_info nic_info;
3709         struct qlcnic_npar_func_cfg np_cfg[QLCNIC_MAX_PCI_FUNC];
3710         int i, ret;
3711
3712         if (size != sizeof(np_cfg))
3713                 return QL_STATUS_INVALID_PARAM;
3714
3715         for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) {
3716                 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3717                         continue;
3718                 ret = qlcnic_get_nic_info(adapter, &nic_info, i);
3719                 if (ret)
3720                         return ret;
3721
3722                 np_cfg[i].pci_func = i;
3723                 np_cfg[i].op_mode = (u8)nic_info.op_mode;
3724                 np_cfg[i].port_num = nic_info.phys_port;
3725                 np_cfg[i].fw_capab = nic_info.capabilities;
3726                 np_cfg[i].min_bw = nic_info.min_tx_bw ;
3727                 np_cfg[i].max_bw = nic_info.max_tx_bw;
3728                 np_cfg[i].max_tx_queues = nic_info.max_tx_ques;
3729                 np_cfg[i].max_rx_queues = nic_info.max_rx_ques;
3730         }
3731         memcpy(buf, &np_cfg, size);
3732         return size;
3733 }
3734
3735 static ssize_t
3736 qlcnic_sysfs_get_port_stats(struct file *file, struct kobject *kobj,
3737         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3738 {
3739         struct device *dev = container_of(kobj, struct device, kobj);
3740         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3741         struct qlcnic_esw_statistics port_stats;
3742         int ret;
3743
3744         if (size != sizeof(struct qlcnic_esw_statistics))
3745                 return QL_STATUS_INVALID_PARAM;
3746
3747         if (offset >= QLCNIC_MAX_PCI_FUNC)
3748                 return QL_STATUS_INVALID_PARAM;
3749
3750         memset(&port_stats, 0, size);
3751         ret = qlcnic_get_port_stats(adapter, offset, QLCNIC_QUERY_RX_COUNTER,
3752                                                                 &port_stats.rx);
3753         if (ret)
3754                 return ret;
3755
3756         ret = qlcnic_get_port_stats(adapter, offset, QLCNIC_QUERY_TX_COUNTER,
3757                                                                 &port_stats.tx);
3758         if (ret)
3759                 return ret;
3760
3761         memcpy(buf, &port_stats, size);
3762         return size;
3763 }
3764
3765 static ssize_t
3766 qlcnic_sysfs_get_esw_stats(struct file *file, struct kobject *kobj,
3767         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3768 {
3769         struct device *dev = container_of(kobj, struct device, kobj);
3770         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3771         struct qlcnic_esw_statistics esw_stats;
3772         int ret;
3773
3774         if (size != sizeof(struct qlcnic_esw_statistics))
3775                 return QL_STATUS_INVALID_PARAM;
3776
3777         if (offset >= QLCNIC_NIU_MAX_XG_PORTS)
3778                 return QL_STATUS_INVALID_PARAM;
3779
3780         memset(&esw_stats, 0, size);
3781         ret = qlcnic_get_eswitch_stats(adapter, offset, QLCNIC_QUERY_RX_COUNTER,
3782                                                                 &esw_stats.rx);
3783         if (ret)
3784                 return ret;
3785
3786         ret = qlcnic_get_eswitch_stats(adapter, offset, QLCNIC_QUERY_TX_COUNTER,
3787                                                                 &esw_stats.tx);
3788         if (ret)
3789                 return ret;
3790
3791         memcpy(buf, &esw_stats, size);
3792         return size;
3793 }
3794
3795 static ssize_t
3796 qlcnic_sysfs_clear_esw_stats(struct file *file, struct kobject *kobj,
3797         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3798 {
3799         struct device *dev = container_of(kobj, struct device, kobj);
3800         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3801         int ret;
3802
3803         if (offset >= QLCNIC_NIU_MAX_XG_PORTS)
3804                 return QL_STATUS_INVALID_PARAM;
3805
3806         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_ESWITCH, offset,
3807                                                 QLCNIC_QUERY_RX_COUNTER);
3808         if (ret)
3809                 return ret;
3810
3811         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_ESWITCH, offset,
3812                                                 QLCNIC_QUERY_TX_COUNTER);
3813         if (ret)
3814                 return ret;
3815
3816         return size;
3817 }
3818
3819 static ssize_t
3820 qlcnic_sysfs_clear_port_stats(struct file *file, struct kobject *kobj,
3821         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3822 {
3823
3824         struct device *dev = container_of(kobj, struct device, kobj);
3825         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3826         int ret;
3827
3828         if (offset >= QLCNIC_MAX_PCI_FUNC)
3829                 return QL_STATUS_INVALID_PARAM;
3830
3831         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_PORT, offset,
3832                                                 QLCNIC_QUERY_RX_COUNTER);
3833         if (ret)
3834                 return ret;
3835
3836         ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_PORT, offset,
3837                                                 QLCNIC_QUERY_TX_COUNTER);
3838         if (ret)
3839                 return ret;
3840
3841         return size;
3842 }
3843
3844 static ssize_t
3845 qlcnic_sysfs_read_pci_config(struct file *file, struct kobject *kobj,
3846         struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3847 {
3848         struct device *dev = container_of(kobj, struct device, kobj);
3849         struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3850         struct qlcnic_pci_func_cfg pci_cfg[QLCNIC_MAX_PCI_FUNC];
3851         struct qlcnic_pci_info *pci_info;
3852         int i, ret;
3853
3854         if (size != sizeof(pci_cfg))
3855                 return QL_STATUS_INVALID_PARAM;
3856
3857         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
3858         if (!pci_info)
3859                 return -ENOMEM;
3860
3861         ret = qlcnic_get_pci_info(adapter, pci_info);
3862         if (ret) {
3863                 kfree(pci_info);
3864                 return ret;
3865         }
3866
3867         for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) {
3868                 pci_cfg[i].pci_func = pci_info[i].id;
3869                 pci_cfg[i].func_type = pci_info[i].type;
3870                 pci_cfg[i].port_num = pci_info[i].default_port;
3871                 pci_cfg[i].min_bw = pci_info[i].tx_min_bw;
3872                 pci_cfg[i].max_bw = pci_info[i].tx_max_bw;
3873                 memcpy(&pci_cfg[i].def_mac_addr, &pci_info[i].mac, ETH_ALEN);
3874         }
3875         memcpy(buf, &pci_cfg, size);
3876         kfree(pci_info);
3877         return size;
3878 }
3879 static struct bin_attribute bin_attr_npar_config = {
3880         .attr = {.name = "npar_config", .mode = (S_IRUGO | S_IWUSR)},
3881         .size = 0,
3882         .read = qlcnic_sysfs_read_npar_config,
3883         .write = qlcnic_sysfs_write_npar_config,
3884 };
3885
3886 static struct bin_attribute bin_attr_pci_config = {
3887         .attr = {.name = "pci_config", .mode = (S_IRUGO | S_IWUSR)},
3888         .size = 0,
3889         .read = qlcnic_sysfs_read_pci_config,
3890         .write = NULL,
3891 };
3892
3893 static struct bin_attribute bin_attr_port_stats = {
3894         .attr = {.name = "port_stats", .mode = (S_IRUGO | S_IWUSR)},
3895         .size = 0,
3896         .read = qlcnic_sysfs_get_port_stats,
3897         .write = qlcnic_sysfs_clear_port_stats,
3898 };
3899
3900 static struct bin_attribute bin_attr_esw_stats = {
3901         .attr = {.name = "esw_stats", .mode = (S_IRUGO | S_IWUSR)},
3902         .size = 0,
3903         .read = qlcnic_sysfs_get_esw_stats,
3904         .write = qlcnic_sysfs_clear_esw_stats,
3905 };
3906
3907 static struct bin_attribute bin_attr_esw_config = {
3908         .attr = {.name = "esw_config", .mode = (S_IRUGO | S_IWUSR)},
3909         .size = 0,
3910         .read = qlcnic_sysfs_read_esw_config,
3911         .write = qlcnic_sysfs_write_esw_config,
3912 };
3913
3914 static struct bin_attribute bin_attr_pm_config = {
3915         .attr = {.name = "pm_config", .mode = (S_IRUGO | S_IWUSR)},
3916         .size = 0,
3917         .read = qlcnic_sysfs_read_pm_config,
3918         .write = qlcnic_sysfs_write_pm_config,
3919 };
3920
3921 static void
3922 qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter)
3923 {
3924         struct device *dev = &adapter->pdev->dev;
3925
3926         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
3927                 if (device_create_file(dev, &dev_attr_bridged_mode))
3928                         dev_warn(dev,
3929                                 "failed to create bridged_mode sysfs entry\n");
3930 }
3931
3932 static void
3933 qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter)
3934 {
3935         struct device *dev = &adapter->pdev->dev;
3936
3937         if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
3938                 device_remove_file(dev, &dev_attr_bridged_mode);
3939 }
3940
3941 static void
3942 qlcnic_create_diag_entries(struct qlcnic_adapter *adapter)
3943 {
3944         struct device *dev = &adapter->pdev->dev;
3945
3946         if (device_create_bin_file(dev, &bin_attr_port_stats))
3947                 dev_info(dev, "failed to create port stats sysfs entry");
3948
3949         if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
3950                 return;
3951         if (device_create_file(dev, &dev_attr_diag_mode))
3952                 dev_info(dev, "failed to create diag_mode sysfs entry\n");
3953         if (device_create_bin_file(dev, &bin_attr_crb))
3954                 dev_info(dev, "failed to create crb sysfs entry\n");
3955         if (device_create_bin_file(dev, &bin_attr_mem))
3956                 dev_info(dev, "failed to create mem sysfs entry\n");
3957         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
3958                 return;
3959         if (device_create_bin_file(dev, &bin_attr_esw_config))
3960                 dev_info(dev, "failed to create esw config sysfs entry");
3961         if (adapter->op_mode != QLCNIC_MGMT_FUNC)
3962                 return;
3963         if (device_create_bin_file(dev, &bin_attr_pci_config))
3964                 dev_info(dev, "failed to create pci config sysfs entry");
3965         if (device_create_bin_file(dev, &bin_attr_npar_config))
3966                 dev_info(dev, "failed to create npar config sysfs entry");
3967         if (device_create_bin_file(dev, &bin_attr_pm_config))
3968                 dev_info(dev, "failed to create pm config sysfs entry");
3969         if (device_create_bin_file(dev, &bin_attr_esw_stats))
3970                 dev_info(dev, "failed to create eswitch stats sysfs entry");
3971 }
3972
3973 static void
3974 qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter)
3975 {
3976         struct device *dev = &adapter->pdev->dev;
3977
3978         device_remove_bin_file(dev, &bin_attr_port_stats);
3979
3980         if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
3981                 return;
3982         device_remove_file(dev, &dev_attr_diag_mode);
3983         device_remove_bin_file(dev, &bin_attr_crb);
3984         device_remove_bin_file(dev, &bin_attr_mem);
3985         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
3986                 return;
3987         device_remove_bin_file(dev, &bin_attr_esw_config);
3988         if (adapter->op_mode != QLCNIC_MGMT_FUNC)
3989                 return;
3990         device_remove_bin_file(dev, &bin_attr_pci_config);
3991         device_remove_bin_file(dev, &bin_attr_npar_config);
3992         device_remove_bin_file(dev, &bin_attr_pm_config);
3993         device_remove_bin_file(dev, &bin_attr_esw_stats);
3994 }
3995
3996 #ifdef CONFIG_INET
3997
3998 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
3999
4000 static void
4001 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4002                         struct net_device *dev, unsigned long event)
4003 {
4004         struct in_device *indev;
4005
4006         indev = in_dev_get(dev);
4007         if (!indev)
4008                 return;
4009
4010         for_ifa(indev) {
4011                 switch (event) {
4012                 case NETDEV_UP:
4013                         qlcnic_config_ipaddr(adapter,
4014                                         ifa->ifa_address, QLCNIC_IP_UP);
4015                         break;
4016                 case NETDEV_DOWN:
4017                         qlcnic_config_ipaddr(adapter,
4018                                         ifa->ifa_address, QLCNIC_IP_DOWN);
4019                         break;
4020                 default:
4021                         break;
4022                 }
4023         } endfor_ifa(indev);
4024
4025         in_dev_put(indev);
4026 }
4027
4028 static void
4029 qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4030 {
4031         struct qlcnic_adapter *adapter = netdev_priv(netdev);
4032         struct net_device *dev;
4033         u16 vid;
4034
4035         qlcnic_config_indev_addr(adapter, netdev, event);
4036
4037         if (!adapter->vlgrp)
4038                 return;
4039
4040         for (vid = 0; vid < VLAN_N_VID; vid++) {
4041                 dev = vlan_group_get_device(adapter->vlgrp, vid);
4042                 if (!dev)
4043                         continue;
4044
4045                 qlcnic_config_indev_addr(adapter, dev, event);
4046         }
4047 }
4048
4049 static int qlcnic_netdev_event(struct notifier_block *this,
4050                                  unsigned long event, void *ptr)
4051 {
4052         struct qlcnic_adapter *adapter;
4053         struct net_device *dev = (struct net_device *)ptr;
4054
4055 recheck:
4056         if (dev == NULL)
4057                 goto done;
4058
4059         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4060                 dev = vlan_dev_real_dev(dev);
4061                 goto recheck;
4062         }
4063
4064         if (!is_qlcnic_netdev(dev))
4065                 goto done;
4066
4067         adapter = netdev_priv(dev);
4068
4069         if (!adapter)
4070                 goto done;
4071
4072         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4073                 goto done;
4074
4075         qlcnic_config_indev_addr(adapter, dev, event);
4076 done:
4077         return NOTIFY_DONE;
4078 }
4079
4080 static int
4081 qlcnic_inetaddr_event(struct notifier_block *this,
4082                 unsigned long event, void *ptr)
4083 {
4084         struct qlcnic_adapter *adapter;
4085         struct net_device *dev;
4086
4087         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4088
4089         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4090
4091 recheck:
4092         if (dev == NULL)
4093                 goto done;
4094
4095         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4096                 dev = vlan_dev_real_dev(dev);
4097                 goto recheck;
4098         }
4099
4100         if (!is_qlcnic_netdev(dev))
4101                 goto done;
4102
4103         adapter = netdev_priv(dev);
4104
4105         if (!adapter)
4106                 goto done;
4107
4108         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4109                 goto done;
4110
4111         switch (event) {
4112         case NETDEV_UP:
4113                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4114                 break;
4115         case NETDEV_DOWN:
4116                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4117                 break;
4118         default:
4119                 break;
4120         }
4121
4122 done:
4123         return NOTIFY_DONE;
4124 }
4125
4126 static struct notifier_block    qlcnic_netdev_cb = {
4127         .notifier_call = qlcnic_netdev_event,
4128 };
4129
4130 static struct notifier_block qlcnic_inetaddr_cb = {
4131         .notifier_call = qlcnic_inetaddr_event,
4132 };
4133 #else
4134 static void
4135 qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4136 { }
4137 #endif
4138 static struct pci_error_handlers qlcnic_err_handler = {
4139         .error_detected = qlcnic_io_error_detected,
4140         .slot_reset = qlcnic_io_slot_reset,
4141         .resume = qlcnic_io_resume,
4142 };
4143
4144 static struct pci_driver qlcnic_driver = {
4145         .name = qlcnic_driver_name,
4146         .id_table = qlcnic_pci_tbl,
4147         .probe = qlcnic_probe,
4148         .remove = __devexit_p(qlcnic_remove),
4149 #ifdef CONFIG_PM
4150         .suspend = qlcnic_suspend,
4151         .resume = qlcnic_resume,
4152 #endif
4153         .shutdown = qlcnic_shutdown,
4154         .err_handler = &qlcnic_err_handler
4155
4156 };
4157
4158 static int __init qlcnic_init_module(void)
4159 {
4160         int ret;
4161
4162         printk(KERN_INFO "%s\n", qlcnic_driver_string);
4163
4164         qlcnic_wq = create_singlethread_workqueue("qlcnic");
4165         if (qlcnic_wq == NULL) {
4166                 printk(KERN_ERR "qlcnic: cannot create workqueue\n");
4167                 return -ENOMEM;
4168         }
4169
4170 #ifdef CONFIG_INET
4171         register_netdevice_notifier(&qlcnic_netdev_cb);
4172         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4173 #endif
4174
4175         ret = pci_register_driver(&qlcnic_driver);
4176         if (ret) {
4177 #ifdef CONFIG_INET
4178                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4179                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4180 #endif
4181                 destroy_workqueue(qlcnic_wq);
4182         }
4183
4184         return ret;
4185 }
4186
4187 module_init(qlcnic_init_module);
4188
4189 static void __exit qlcnic_exit_module(void)
4190 {
4191
4192         pci_unregister_driver(&qlcnic_driver);
4193
4194 #ifdef CONFIG_INET
4195         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4196         unregister_netdevice_notifier(&qlcnic_netdev_cb);
4197 #endif
4198         destroy_workqueue(qlcnic_wq);
4199 }
4200
4201 module_exit(qlcnic_exit_module);