Pileus Git - ~andy/linux/blob - drivers/net/ethernet/qlogic/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 <net/ip.h>
  17 #include <linux/ipv6.h>
  18 #include <linux/inetdevice.h>
  19 #include <linux/sysfs.h>
  20 #include <linux/aer.h>
  21 #include <linux/log2.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 qlcnic_probe(struct pci_dev *pdev,
  58                 const struct pci_device_id *ent);
  59 static void 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 #ifdef CONFIG_NET_POLL_CONTROLLER
  70 static void qlcnic_poll_controller(struct net_device *netdev);
  71 #endif
  72
  73 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
  74 static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8);
  75 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
  76
  77 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
  78 static irqreturn_t qlcnic_intr(int irq, void *data);
  79 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
  80 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
  81
  82 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
  83 static void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long);
  84 static int qlcnic_start_firmware(struct qlcnic_adapter *);
  85
  86 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
  87 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
  88 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
  89 static void qlcnic_set_netdev_features(struct qlcnic_adapter *,
  90                                 struct qlcnic_esw_func_cfg *);
  91 static int qlcnic_vlan_rx_add(struct net_device *, u16);
  92 static int qlcnic_vlan_rx_del(struct net_device *, u16);
  93
  94 #define QLCNIC_IS_TSO_CAPABLE(adapter)  \
  95         ((adapter)->ahw->capabilities & QLCNIC_FW_CAPABILITY_TSO)
  96
  97 /*  PCI Device ID Table  */
  98 #define ENTRY(device) \
  99         {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
 100         .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
 101
 102 #define PCI_DEVICE_ID_QLOGIC_QLE824X  0x8020
 103
 104 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
 105         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
 106         {0,}
 107 };
 108
 109 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
 110
 111
 112 inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
 113 {
 114         writel(tx_ring->producer, tx_ring->crb_cmd_producer);
 115 }
 116
 117 static const u32 msi_tgt_status[8] = {
 118         ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
 119         ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
 120         ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
 121         ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
 122 };
 123
 124 static const struct qlcnic_board_info qlcnic_boards[] = {
 125         {0x1077, 0x8020, 0x1077, 0x203,
 126          "8200 Series Single Port 10GbE Converged Network Adapter"
 127          "(TCP/IP Networking)"},
 128         {0x1077, 0x8020, 0x1077, 0x207,
 129          "8200 Series Dual Port 10GbE Converged Network Adapter"
 130          "(TCP/IP Networking)"},
 131         {0x1077, 0x8020, 0x1077, 0x20b,
 132          "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter"},
 133         {0x1077, 0x8020, 0x1077, 0x20c,
 134          "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter"},
 135         {0x1077, 0x8020, 0x1077, 0x20f,
 136          "3200 Series Single Port 10Gb Intelligent Ethernet Adapter"},
 137         {0x1077, 0x8020, 0x103c, 0x3733,
 138          "NC523SFP 10Gb 2-port Server Adapter"},
 139         {0x1077, 0x8020, 0x103c, 0x3346,
 140          "CN1000Q Dual Port Converged Network Adapter"},
 141         {0x1077, 0x8020, 0x1077, 0x210,
 142          "QME8242-k 10GbE Dual Port Mezzanine Card"},
 143         {0x1077, 0x8020, 0x0, 0x0, "cLOM8214 1/10GbE Controller"},
 144 };
 145
 146 #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)
 147
 148 static const
 149 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
 150
 151 int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
 152 {
 153         int size = sizeof(struct qlcnic_host_sds_ring) * count;
 154
 155         recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
 156
 157         return recv_ctx->sds_rings == NULL;
 158 }
 159
 160 void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
 161 {
 162         if (recv_ctx->sds_rings != NULL)
 163                 kfree(recv_ctx->sds_rings);
 164
 165         recv_ctx->sds_rings = NULL;
 166 }
 167
 168 static void qlcnic_clear_stats(struct qlcnic_adapter *adapter)
 169 {
 170         memset(&adapter->stats, 0, sizeof(adapter->stats));
 171 }
 172
 173 static void qlcnic_set_msix_bit(struct pci_dev *pdev, int enable)
 174 {
 175         u32 control;
 176         int pos;
 177
 178         pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
 179         if (pos) {
 180                 pci_read_config_dword(pdev, pos, &control);
 181                 if (enable)
 182                         control |= PCI_MSIX_FLAGS_ENABLE;
 183                 else
 184                         control = 0;
 185                 pci_write_config_dword(pdev, pos, control);
 186         }
 187 }
 188
 189 static void qlcnic_init_msix_entries(struct qlcnic_adapter *adapter, int count)
 190 {
 191         int i;
 192
 193         for (i = 0; i < count; i++)
 194                 adapter->msix_entries[i].entry = i;
 195 }
 196
 197 static int
 198 qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
 199 {
 200         u8 mac_addr[ETH_ALEN];
 201         struct net_device *netdev = adapter->netdev;
 202         struct pci_dev *pdev = adapter->pdev;
 203
 204         if (qlcnic_get_mac_address(adapter, mac_addr) != 0)
 205                 return -EIO;
 206
 207         memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
 208         memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
 209         memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
 210
 211         /* set station address */
 212
 213         if (!is_valid_ether_addr(netdev->perm_addr))
 214                 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
 215                                         netdev->dev_addr);
 216
 217         return 0;
 218 }
 219
 220 static int qlcnic_set_mac(struct net_device *netdev, void *p)
 221 {
 222         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 223         struct sockaddr *addr = p;
 224
 225         if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
 226                 return -EOPNOTSUPP;
 227
 228         if (!is_valid_ether_addr(addr->sa_data))
 229                 return -EADDRNOTAVAIL;
 230
 231         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 232                 netif_device_detach(netdev);
 233                 qlcnic_napi_disable(adapter);
 234         }
 235
 236         memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
 237         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 238         qlcnic_set_multi(adapter->netdev);
 239
 240         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 241                 netif_device_attach(netdev);
 242                 qlcnic_napi_enable(adapter);
 243         }
 244         return 0;
 245 }
 246
 247 static const struct net_device_ops qlcnic_netdev_ops = {
 248         .ndo_open          = qlcnic_open,
 249         .ndo_stop          = qlcnic_close,
 250         .ndo_start_xmit    = qlcnic_xmit_frame,
 251         .ndo_get_stats     = qlcnic_get_stats,
 252         .ndo_validate_addr = eth_validate_addr,
 253         .ndo_set_rx_mode   = qlcnic_set_multi,
 254         .ndo_set_mac_address    = qlcnic_set_mac,
 255         .ndo_change_mtu    = qlcnic_change_mtu,
 256         .ndo_fix_features  = qlcnic_fix_features,
 257         .ndo_set_features  = qlcnic_set_features,
 258         .ndo_tx_timeout    = qlcnic_tx_timeout,
 259         .ndo_vlan_rx_add_vid    = qlcnic_vlan_rx_add,
 260         .ndo_vlan_rx_kill_vid   = qlcnic_vlan_rx_del,
 261 #ifdef CONFIG_NET_POLL_CONTROLLER
 262         .ndo_poll_controller = qlcnic_poll_controller,
 263 #endif
 264 };
 265
 266 static const struct net_device_ops qlcnic_netdev_failed_ops = {
 267         .ndo_open          = qlcnic_open,
 268 };
 269
 270 static struct qlcnic_nic_template qlcnic_ops = {
 271         .config_bridged_mode = qlcnic_config_bridged_mode,
 272         .config_led = qlcnic_config_led,
 273         .start_firmware = qlcnic_start_firmware
 274 };
 275
 276 static struct qlcnic_nic_template qlcnic_vf_ops = {
 277         .config_bridged_mode = qlcnicvf_config_bridged_mode,
 278         .config_led = qlcnicvf_config_led,
 279         .start_firmware = qlcnicvf_start_firmware
 280 };
 281
 282 static int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 283 {
 284         struct pci_dev *pdev = adapter->pdev;
 285         int err = -1;
 286
 287         adapter->max_sds_rings = 1;
 288         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 289         qlcnic_set_msix_bit(pdev, 0);
 290
 291         if (adapter->ahw->msix_supported) {
 292  enable_msix:
 293                 qlcnic_init_msix_entries(adapter, num_msix);
 294                 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
 295                 if (err == 0) {
 296                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 297                         qlcnic_set_msix_bit(pdev, 1);
 298
 299                         adapter->max_sds_rings = num_msix;
 300
 301                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 302                         return err;
 303                 }
 304                 if (err > 0) {
 305                         num_msix = rounddown_pow_of_two(err);
 306                         if (num_msix)
 307                                 goto enable_msix;
 308                 }
 309         }
 310         return err;
 311 }
 312
 313 static void qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
 314 {
 315         u32 offset, mask_reg;
 316         const struct qlcnic_legacy_intr_set *legacy_intrp;
 317         struct qlcnic_hardware_context *ahw = adapter->ahw;
 318         struct pci_dev *pdev = adapter->pdev;
 319
 320         if (use_msi && !pci_enable_msi(pdev)) {
 321                 adapter->flags |= QLCNIC_MSI_ENABLED;
 322                 offset = msi_tgt_status[adapter->ahw->pci_func];
 323                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
 324                                                             offset);
 325                 dev_info(&pdev->dev, "using msi interrupts\n");
 326                 adapter->msix_entries[0].vector = pdev->irq;
 327                 return;
 328         }
 329
 330         legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
 331         adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
 332         offset = legacy_intrp->tgt_status_reg;
 333         adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
 334         mask_reg = legacy_intrp->tgt_mask_reg;
 335         adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
 336         adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
 337         adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
 338         dev_info(&pdev->dev, "using legacy interrupts\n");
 339         adapter->msix_entries[0].vector = pdev->irq;
 340 }
 341
 342 static void
 343 qlcnic_setup_intr(struct qlcnic_adapter *adapter)
 344 {
 345         int num_msix;
 346
 347         if (adapter->ahw->msix_supported) {
 348                 num_msix = rounddown_pow_of_two(min_t(int, num_online_cpus(),
 349                                 QLCNIC_DEF_NUM_STS_DESC_RINGS));
 350         } else
 351                 num_msix = 1;
 352
 353         if (!qlcnic_enable_msix(adapter, num_msix))
 354                 return;
 355
 356         qlcnic_enable_msi_legacy(adapter);
 357 }
 358
 359 static void
 360 qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 361 {
 362         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 363                 pci_disable_msix(adapter->pdev);
 364         if (adapter->flags & QLCNIC_MSI_ENABLED)
 365                 pci_disable_msi(adapter->pdev);
 366 }
 367
 368 static void
 369 qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter)
 370 {
 371         if (adapter->ahw->pci_base0 != NULL)
 372                 iounmap(adapter->ahw->pci_base0);
 373 }
 374
 375 static int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 376 {
 377         struct qlcnic_pci_info *pci_info;
 378         int i, ret = 0, j = 0;
 379         u16 act_pci_func;
 380         u8 pfn;
 381
 382         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 383         if (!pci_info)
 384                 return -ENOMEM;
 385
 386         ret = qlcnic_get_pci_info(adapter, pci_info);
 387         if (ret)
 388                 goto err_pci_info;
 389
 390         act_pci_func = adapter->ahw->act_pci_func;
 391
 392         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
 393                                  act_pci_func, GFP_KERNEL);
 394         if (!adapter->npars) {
 395                 ret = -ENOMEM;
 396                 goto err_pci_info;
 397         }
 398
 399         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
 400                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
 401         if (!adapter->eswitch) {
 402                 ret = -ENOMEM;
 403                 goto err_npars;
 404         }
 405
 406         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 407                 pfn = pci_info[i].id;
 408
 409                 if (pfn >= QLCNIC_MAX_PCI_FUNC) {
 410                         ret = QL_STATUS_INVALID_PARAM;
 411                         goto err_eswitch;
 412                 }
 413
 414                 if (!pci_info[i].active ||
 415                     (pci_info[i].type != QLCNIC_TYPE_NIC))
 416                         continue;
 417
 418                 adapter->npars[j].pci_func = pfn;
 419                 adapter->npars[j].active = (u8)pci_info[i].active;
 420                 adapter->npars[j].type = (u8)pci_info[i].type;
 421                 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
 422                 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
 423                 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
 424                 j++;
 425         }
 426
 427         for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
 428                 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
 429
 430         kfree(pci_info);
 431         return 0;
 432
 433 err_eswitch:
 434         kfree(adapter->eswitch);
 435         adapter->eswitch = NULL;
 436 err_npars:
 437         kfree(adapter->npars);
 438         adapter->npars = NULL;
 439 err_pci_info:
 440         kfree(pci_info);
 441
 442         return ret;
 443 }
 444
 445 static int
 446 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
 447 {
 448         u8 id;
 449         u32 ref_count;
 450         int i, ret = 1;
 451         u32 data = QLCNIC_MGMT_FUNC;
 452         struct qlcnic_hardware_context *ahw = adapter->ahw;
 453
 454         /* If other drivers are not in use set their privilege level */
 455         ref_count = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
 456         ret = qlcnic_api_lock(adapter);
 457         if (ret)
 458                 goto err_lock;
 459
 460         if (qlcnic_config_npars) {
 461                 for (i = 0; i < ahw->act_pci_func; i++) {
 462                         id = adapter->npars[i].pci_func;
 463                         if (id == ahw->pci_func)
 464                                 continue;
 465                         data |= (qlcnic_config_npars &
 466                                         QLC_DEV_SET_DRV(0xf, id));
 467                 }
 468         } else {
 469                 data = QLCRD32(adapter, QLCNIC_DRV_OP_MODE);
 470                 data = (data & ~QLC_DEV_SET_DRV(0xf, ahw->pci_func)) |
 471                         (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
 472                                          ahw->pci_func));
 473         }
 474         QLCWR32(adapter, QLCNIC_DRV_OP_MODE, data);
 475         qlcnic_api_unlock(adapter);
 476 err_lock:
 477         return ret;
 478 }
 479
 480 static void
 481 qlcnic_check_vf(struct qlcnic_adapter *adapter)
 482 {
 483         void __iomem *msix_base_addr;
 484         void __iomem *priv_op;
 485         u32 func;
 486         u32 msix_base;
 487         u32 op_mode, priv_level;
 488
 489         /* Determine FW API version */
 490         adapter->ahw->fw_hal_version = readl(adapter->ahw->pci_base0 +
 491                                              QLCNIC_FW_API);
 492
 493         /* Find PCI function number */
 494         pci_read_config_dword(adapter->pdev, QLCNIC_MSIX_TABLE_OFFSET, &func);
 495         msix_base_addr = adapter->ahw->pci_base0 + QLCNIC_MSIX_BASE;
 496         msix_base = readl(msix_base_addr);
 497         func = (func - msix_base)/QLCNIC_MSIX_TBL_PGSIZE;
 498         adapter->ahw->pci_func = func;
 499
 500         /* Determine function privilege level */
 501         priv_op = adapter->ahw->pci_base0 + QLCNIC_DRV_OP_MODE;
 502         op_mode = readl(priv_op);
 503         if (op_mode == QLC_DEV_DRV_DEFAULT)
 504                 priv_level = QLCNIC_MGMT_FUNC;
 505         else
 506                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
 507
 508         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
 509                 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
 510                 dev_info(&adapter->pdev->dev,
 511                         "HAL Version: %d Non Privileged function\n",
 512                          adapter->ahw->fw_hal_version);
 513                 adapter->nic_ops = &qlcnic_vf_ops;
 514         } else
 515                 adapter->nic_ops = &qlcnic_ops;
 516 }
 517
 518 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
 519 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
 520 {
 521         switch (dev_id) {
 522         case PCI_DEVICE_ID_QLOGIC_QLE824X:
 523                 *bar = QLCNIC_82XX_BAR0_LENGTH;
 524                 break;
 525         default:
 526                 *bar = 0;
 527         }
 528 }
 529
 530 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
 531                                 struct qlcnic_hardware_context *ahw)
 532 {
 533         u32 offset;
 534         void __iomem *mem_ptr0 = NULL;
 535         resource_size_t mem_base;
 536         unsigned long mem_len, pci_len0 = 0, bar0_len;
 537
 538         /* remap phys address */
 539         mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
 540         mem_len = pci_resource_len(pdev, 0);
 541
 542         qlcnic_get_bar_length(pdev->device, &bar0_len);
 543         if (mem_len >= bar0_len) {
 544
 545                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
 546                 if (mem_ptr0 == NULL) {
 547                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
 548                         return -EIO;
 549                 }
 550                 pci_len0 = mem_len;
 551         } else {
 552                 return -EIO;
 553         }
 554
 555         dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
 556         ahw->pci_base0 = mem_ptr0;
 557         ahw->pci_len0 = pci_len0;
 558         offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
 559         qlcnic_get_ioaddr(ahw, offset);
 560
 561         return 0;
 562 }
 563
 564 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
 565 {
 566         struct pci_dev *pdev = adapter->pdev;
 567         int i, found = 0;
 568
 569         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
 570                 if (qlcnic_boards[i].vendor == pdev->vendor &&
 571                         qlcnic_boards[i].device == pdev->device &&
 572                         qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
 573                         qlcnic_boards[i].sub_device == pdev->subsystem_device) {
 574                                 sprintf(name, "%pM: %s" ,
 575                                         adapter->mac_addr,
 576                                         qlcnic_boards[i].short_name);
 577                                 found = 1;
 578                                 break;
 579                 }
 580
 581         }
 582
 583         if (!found)
 584                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
 585 }
 586
 587 static void
 588 qlcnic_check_options(struct qlcnic_adapter *adapter)
 589 {
 590         u32 fw_major, fw_minor, fw_build, prev_fw_version;
 591         struct pci_dev *pdev = adapter->pdev;
 592         struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
 593
 594         prev_fw_version = adapter->fw_version;
 595
 596         fw_major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
 597         fw_minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
 598         fw_build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
 599
 600         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
 601
 602         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
 603                 if (fw_dump->tmpl_hdr == NULL ||
 604                                 adapter->fw_version > prev_fw_version) {
 605                         if (fw_dump->tmpl_hdr)
 606                                 vfree(fw_dump->tmpl_hdr);
 607                         if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
 608                                 dev_info(&pdev->dev,
 609                                         "Supports FW dump capability\n");
 610                 }
 611         }
 612
 613         dev_info(&pdev->dev, "firmware v%d.%d.%d\n",
 614                         fw_major, fw_minor, fw_build);
 615         if (adapter->ahw->port_type == QLCNIC_XGBE) {
 616                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 617                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
 618                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
 619                 } else {
 620                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
 621                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
 622                 }
 623
 624                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 625                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 626
 627         } else if (adapter->ahw->port_type == QLCNIC_GBE) {
 628                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
 629                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 630                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 631                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
 632         }
 633
 634         adapter->ahw->msix_supported = !!use_msi_x;
 635
 636         adapter->num_txd = MAX_CMD_DESCRIPTORS;
 637
 638         adapter->max_rds_rings = MAX_RDS_RINGS;
 639 }
 640
 641 static int
 642 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
 643 {
 644         int err;
 645         struct qlcnic_info nic_info;
 646
 647         memset(&nic_info, 0, sizeof(struct qlcnic_info));
 648         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
 649         if (err)
 650                 return err;
 651
 652         adapter->ahw->physical_port = (u8)nic_info.phys_port;
 653         adapter->ahw->switch_mode = nic_info.switch_mode;
 654         adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
 655         adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
 656         adapter->ahw->capabilities = nic_info.capabilities;
 657         adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
 658         adapter->ahw->max_mtu = nic_info.max_mtu;
 659
 660         if (adapter->ahw->capabilities & BIT_6)
 661                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
 662         else
 663                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
 664
 665         return err;
 666 }
 667
 668 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
 669                             struct qlcnic_esw_func_cfg *esw_cfg)
 670 {
 671         if (esw_cfg->discard_tagged)
 672                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
 673         else
 674                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
 675
 676         if (esw_cfg->vlan_id)
 677                 adapter->pvid = esw_cfg->vlan_id;
 678         else
 679                 adapter->pvid = 0;
 680 }
 681
 682 static int
 683 qlcnic_vlan_rx_add(struct net_device *netdev, u16 vid)
 684 {
 685         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 686         set_bit(vid, adapter->vlans);
 687         return 0;
 688 }
 689
 690 static int
 691 qlcnic_vlan_rx_del(struct net_device *netdev, u16 vid)
 692 {
 693         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 694
 695         qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
 696         clear_bit(vid, adapter->vlans);
 697         return 0;
 698 }
 699
 700 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
 701                                       struct qlcnic_esw_func_cfg *esw_cfg)
 702 {
 703         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
 704                                 QLCNIC_PROMISC_DISABLED);
 705
 706         if (esw_cfg->mac_anti_spoof)
 707                 adapter->flags |= QLCNIC_MACSPOOF;
 708
 709         if (!esw_cfg->mac_override)
 710                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
 711
 712         if (!esw_cfg->promisc_mode)
 713                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
 714
 715         qlcnic_set_netdev_features(adapter, esw_cfg);
 716 }
 717
 718 static int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
 719 {
 720         struct qlcnic_esw_func_cfg esw_cfg;
 721
 722         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
 723                 return 0;
 724
 725         esw_cfg.pci_func = adapter->ahw->pci_func;
 726         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
 727                         return -EIO;
 728         qlcnic_set_vlan_config(adapter, &esw_cfg);
 729         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
 730
 731         return 0;
 732 }
 733
 734 static void
 735 qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
 736                 struct qlcnic_esw_func_cfg *esw_cfg)
 737 {
 738         struct net_device *netdev = adapter->netdev;
 739         netdev_features_t features, vlan_features;
 740
 741         features = (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
 742                         NETIF_F_IPV6_CSUM | NETIF_F_GRO);
 743         vlan_features = (NETIF_F_SG | NETIF_F_IP_CSUM |
 744                         NETIF_F_IPV6_CSUM | NETIF_F_HW_VLAN_FILTER);
 745
 746         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_TSO) {
 747                 features |= (NETIF_F_TSO | NETIF_F_TSO6);
 748                 vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
 749         }
 750
 751         if (netdev->features & NETIF_F_LRO)
 752                 features |= NETIF_F_LRO;
 753
 754         if (esw_cfg->offload_flags & BIT_0) {
 755                 netdev->features |= features;
 756                 if (!(esw_cfg->offload_flags & BIT_1))
 757                         netdev->features &= ~NETIF_F_TSO;
 758                 if (!(esw_cfg->offload_flags & BIT_2))
 759                         netdev->features &= ~NETIF_F_TSO6;
 760         } else {
 761                 netdev->features &= ~features;
 762         }
 763
 764         netdev->vlan_features = (features & vlan_features);
 765 }
 766
 767 static int
 768 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
 769 {
 770         void __iomem *priv_op;
 771         u32 op_mode, priv_level;
 772         int err = 0;
 773
 774         err = qlcnic_initialize_nic(adapter);
 775         if (err)
 776                 return err;
 777
 778         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
 779                 return 0;
 780
 781         priv_op = adapter->ahw->pci_base0 + QLCNIC_DRV_OP_MODE;
 782         op_mode = readl(priv_op);
 783         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
 784
 785         if (op_mode == QLC_DEV_DRV_DEFAULT)
 786                 priv_level = QLCNIC_MGMT_FUNC;
 787         else
 788                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
 789
 790         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 791                 if (priv_level == QLCNIC_MGMT_FUNC) {
 792                         adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
 793                         err = qlcnic_init_pci_info(adapter);
 794                         if (err)
 795                                 return err;
 796                         /* Set privilege level for other functions */
 797                         qlcnic_set_function_modes(adapter);
 798                         dev_info(&adapter->pdev->dev,
 799                                 "HAL Version: %d, Management function\n",
 800                                  adapter->ahw->fw_hal_version);
 801                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
 802                         adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
 803                         dev_info(&adapter->pdev->dev,
 804                                 "HAL Version: %d, Privileged function\n",
 805                                  adapter->ahw->fw_hal_version);
 806                 }
 807         }
 808
 809         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
 810
 811         return err;
 812 }
 813
 814 static int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
 815 {
 816         struct qlcnic_esw_func_cfg esw_cfg;
 817         struct qlcnic_npar_info *npar;
 818         u8 i;
 819
 820         if (adapter->need_fw_reset)
 821                 return 0;
 822
 823         for (i = 0; i < adapter->ahw->act_pci_func; i++) {
 824                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
 825                 esw_cfg.pci_func = adapter->npars[i].pci_func;
 826                 esw_cfg.mac_override = BIT_0;
 827                 esw_cfg.promisc_mode = BIT_0;
 828                 if (qlcnic_82xx_check(adapter)) {
 829                         esw_cfg.offload_flags = BIT_0;
 830                         if (QLCNIC_IS_TSO_CAPABLE(adapter))
 831                                 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
 832                 }
 833                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
 834                         return -EIO;
 835                 npar = &adapter->npars[i];
 836                 npar->pvid = esw_cfg.vlan_id;
 837                 npar->mac_override = esw_cfg.mac_override;
 838                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
 839                 npar->discard_tagged = esw_cfg.discard_tagged;
 840                 npar->promisc_mode = esw_cfg.promisc_mode;
 841                 npar->offload_flags = esw_cfg.offload_flags;
 842         }
 843
 844         return 0;
 845 }
 846
 847 static int
 848 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
 849                         struct qlcnic_npar_info *npar, int pci_func)
 850 {
 851         struct qlcnic_esw_func_cfg esw_cfg;
 852         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
 853         esw_cfg.pci_func = pci_func;
 854         esw_cfg.vlan_id = npar->pvid;
 855         esw_cfg.mac_override = npar->mac_override;
 856         esw_cfg.discard_tagged = npar->discard_tagged;
 857         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
 858         esw_cfg.offload_flags = npar->offload_flags;
 859         esw_cfg.promisc_mode = npar->promisc_mode;
 860         if (qlcnic_config_switch_port(adapter, &esw_cfg))
 861                 return -EIO;
 862
 863         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
 864         if (qlcnic_config_switch_port(adapter, &esw_cfg))
 865                 return -EIO;
 866
 867         return 0;
 868 }
 869
 870 static int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
 871 {
 872         int i, err;
 873         struct qlcnic_npar_info *npar;
 874         struct qlcnic_info nic_info;
 875         u8 pci_func;
 876
 877         if (qlcnic_82xx_check(adapter))
 878                 if (!adapter->need_fw_reset)
 879                         return 0;
 880
 881         /* Set the NPAR config data after FW reset */
 882         for (i = 0; i < adapter->ahw->act_pci_func; i++) {
 883                 npar = &adapter->npars[i];
 884                 pci_func = npar->pci_func;
 885                 memset(&nic_info, 0, sizeof(struct qlcnic_info));
 886                 err = qlcnic_get_nic_info(adapter,
 887                                           &nic_info, pci_func);
 888                 if (err)
 889                         return err;
 890                 nic_info.min_tx_bw = npar->min_bw;
 891                 nic_info.max_tx_bw = npar->max_bw;
 892                 err = qlcnic_set_nic_info(adapter, &nic_info);
 893                 if (err)
 894                         return err;
 895
 896                 if (npar->enable_pm) {
 897                         err = qlcnic_config_port_mirroring(adapter,
 898                                                            npar->dest_npar, 1,
 899                                                            pci_func);
 900                         if (err)
 901                                 return err;
 902                 }
 903                 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
 904                 if (err)
 905                         return err;
 906         }
 907         return 0;
 908 }
 909
 910 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
 911 {
 912         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
 913         u32 npar_state;
 914
 915         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
 916                 return 0;
 917
 918         npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
 919         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
 920                 msleep(1000);
 921                 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
 922         }
 923         if (!npar_opt_timeo) {
 924                 dev_err(&adapter->pdev->dev,
 925                         "Waiting for NPAR state to opertional timeout\n");
 926                 return -EIO;
 927         }
 928         return 0;
 929 }
 930
 931 static int
 932 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
 933 {
 934         int err;
 935
 936         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
 937             adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
 938                 return 0;
 939
 940         err = qlcnic_set_default_offload_settings(adapter);
 941         if (err)
 942                 return err;
 943
 944         err = qlcnic_reset_npar_config(adapter);
 945         if (err)
 946                 return err;
 947
 948         qlcnic_dev_set_npar_ready(adapter);
 949
 950         return err;
 951 }
 952
 953 static int
 954 qlcnic_start_firmware(struct qlcnic_adapter *adapter)
 955 {
 956         int err;
 957
 958         err = qlcnic_can_start_firmware(adapter);
 959         if (err < 0)
 960                 return err;
 961         else if (!err)
 962                 goto check_fw_status;
 963
 964         if (load_fw_file)
 965                 qlcnic_request_firmware(adapter);
 966         else {
 967                 err = qlcnic_check_flash_fw_ver(adapter);
 968                 if (err)
 969                         goto err_out;
 970
 971                 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
 972         }
 973
 974         err = qlcnic_need_fw_reset(adapter);
 975         if (err == 0)
 976                 goto check_fw_status;
 977
 978         err = qlcnic_pinit_from_rom(adapter);
 979         if (err)
 980                 goto err_out;
 981
 982         err = qlcnic_load_firmware(adapter);
 983         if (err)
 984                 goto err_out;
 985
 986         qlcnic_release_firmware(adapter);
 987         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
 988
 989 check_fw_status:
 990         err = qlcnic_check_fw_status(adapter);
 991         if (err)
 992                 goto err_out;
 993
 994         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
 995         qlcnic_idc_debug_info(adapter, 1);
 996
 997         err = qlcnic_check_eswitch_mode(adapter);
 998         if (err) {
 999                 dev_err(&adapter->pdev->dev,
1000                         "Memory allocation failed for eswitch\n");
1001                 goto err_out;
1002         }
1003         err = qlcnic_set_mgmt_operations(adapter);
1004         if (err)
1005                 goto err_out;
1006
1007         qlcnic_check_options(adapter);
1008         adapter->need_fw_reset = 0;
1009
1010         qlcnic_release_firmware(adapter);
1011         return 0;
1012
1013 err_out:
1014         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1015         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1016
1017         qlcnic_release_firmware(adapter);
1018         return err;
1019 }
1020
1021 static int
1022 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1023 {
1024         irq_handler_t handler;
1025         struct qlcnic_host_sds_ring *sds_ring;
1026         int err, ring;
1027
1028         unsigned long flags = 0;
1029         struct net_device *netdev = adapter->netdev;
1030         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1031
1032         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1033                 handler = qlcnic_tmp_intr;
1034                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1035                         flags |= IRQF_SHARED;
1036
1037         } else {
1038                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1039                         handler = qlcnic_msix_intr;
1040                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1041                         handler = qlcnic_msi_intr;
1042                 else {
1043                         flags |= IRQF_SHARED;
1044                         handler = qlcnic_intr;
1045                 }
1046         }
1047         adapter->irq = netdev->irq;
1048
1049         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1050                 sds_ring = &recv_ctx->sds_rings[ring];
1051                 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
1052                 err = request_irq(sds_ring->irq, handler,
1053                                   flags, sds_ring->name, sds_ring);
1054                 if (err)
1055                         return err;
1056         }
1057
1058         return 0;
1059 }
1060
1061 static void
1062 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1063 {
1064         int ring;
1065         struct qlcnic_host_sds_ring *sds_ring;
1066
1067         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1068
1069         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1070                 sds_ring = &recv_ctx->sds_rings[ring];
1071                 free_irq(sds_ring->irq, sds_ring);
1072         }
1073 }
1074
1075 static int
1076 __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1077 {
1078         int ring;
1079         u32 capab2;
1080
1081         struct qlcnic_host_rds_ring *rds_ring;
1082
1083         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1084                 return -EIO;
1085
1086         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1087                 return 0;
1088         if (qlcnic_set_eswitch_port_config(adapter))
1089                 return -EIO;
1090
1091         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1092                 capab2 = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
1093                 if (capab2 & QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1094                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1095         }
1096
1097         if (qlcnic_fw_create_ctx(adapter))
1098                 return -EIO;
1099
1100         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1101                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1102                 qlcnic_post_rx_buffers(adapter, rds_ring);
1103         }
1104
1105         qlcnic_set_multi(netdev);
1106         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1107
1108         adapter->ahw->linkup = 0;
1109
1110         if (adapter->max_sds_rings > 1)
1111                 qlcnic_config_rss(adapter, 1);
1112
1113         qlcnic_config_intr_coalesce(adapter);
1114
1115         if (netdev->features & NETIF_F_LRO)
1116                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1117
1118         qlcnic_napi_enable(adapter);
1119
1120         qlcnic_linkevent_request(adapter, 1);
1121
1122         adapter->ahw->reset_context = 0;
1123         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1124         return 0;
1125 }
1126
1127 /* Usage: During resume and firmware recovery module.*/
1128
1129 static int
1130 qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1131 {
1132         int err = 0;
1133
1134         rtnl_lock();
1135         if (netif_running(netdev))
1136                 err = __qlcnic_up(adapter, netdev);
1137         rtnl_unlock();
1138
1139         return err;
1140 }
1141
1142 static void
1143 __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1144 {
1145         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1146                 return;
1147
1148         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1149                 return;
1150
1151         smp_mb();
1152         spin_lock(&adapter->tx_clean_lock);
1153         netif_carrier_off(netdev);
1154         netif_tx_disable(netdev);
1155
1156         qlcnic_free_mac_list(adapter);
1157
1158         if (adapter->fhash.fnum)
1159                 qlcnic_delete_lb_filters(adapter);
1160
1161         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1162
1163         qlcnic_napi_disable(adapter);
1164
1165         qlcnic_fw_destroy_ctx(adapter);
1166         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1167
1168         qlcnic_reset_rx_buffers_list(adapter);
1169         qlcnic_release_tx_buffers(adapter);
1170         spin_unlock(&adapter->tx_clean_lock);
1171 }
1172
1173 /* Usage: During suspend and firmware recovery module */
1174
1175 static void
1176 qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1177 {
1178         rtnl_lock();
1179         if (netif_running(netdev))
1180                 __qlcnic_down(adapter, netdev);
1181         rtnl_unlock();
1182
1183 }
1184
1185 static int
1186 qlcnic_attach(struct qlcnic_adapter *adapter)
1187 {
1188         struct net_device *netdev = adapter->netdev;
1189         struct pci_dev *pdev = adapter->pdev;
1190         int err;
1191
1192         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1193                 return 0;
1194
1195         err = qlcnic_napi_add(adapter, netdev);
1196         if (err)
1197                 return err;
1198
1199         err = qlcnic_alloc_sw_resources(adapter);
1200         if (err) {
1201                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1202                 goto err_out_napi_del;
1203         }
1204
1205         err = qlcnic_alloc_hw_resources(adapter);
1206         if (err) {
1207                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1208                 goto err_out_free_sw;
1209         }
1210
1211         err = qlcnic_request_irq(adapter);
1212         if (err) {
1213                 dev_err(&pdev->dev, "failed to setup interrupt\n");
1214                 goto err_out_free_hw;
1215         }
1216
1217         qlcnic_create_sysfs_entries(adapter);
1218
1219         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1220         return 0;
1221
1222 err_out_free_hw:
1223         qlcnic_free_hw_resources(adapter);
1224 err_out_free_sw:
1225         qlcnic_free_sw_resources(adapter);
1226 err_out_napi_del:
1227         qlcnic_napi_del(adapter);
1228         return err;
1229 }
1230
1231 static void
1232 qlcnic_detach(struct qlcnic_adapter *adapter)
1233 {
1234         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1235                 return;
1236
1237         qlcnic_remove_sysfs_entries(adapter);
1238
1239         qlcnic_free_hw_resources(adapter);
1240         qlcnic_release_rx_buffers(adapter);
1241         qlcnic_free_irq(adapter);
1242         qlcnic_napi_del(adapter);
1243         qlcnic_free_sw_resources(adapter);
1244
1245         adapter->is_up = 0;
1246 }
1247
1248 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1249 {
1250         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1251         struct qlcnic_host_sds_ring *sds_ring;
1252         int ring;
1253
1254         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1255         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1256                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1257                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1258                         qlcnic_disable_int(sds_ring);
1259                 }
1260         }
1261
1262         qlcnic_fw_destroy_ctx(adapter);
1263
1264         qlcnic_detach(adapter);
1265
1266         adapter->ahw->diag_test = 0;
1267         adapter->max_sds_rings = max_sds_rings;
1268
1269         if (qlcnic_attach(adapter))
1270                 goto out;
1271
1272         if (netif_running(netdev))
1273                 __qlcnic_up(adapter, netdev);
1274 out:
1275         netif_device_attach(netdev);
1276 }
1277
1278 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
1279 {
1280         int err = 0;
1281         adapter->ahw = kzalloc(sizeof(struct qlcnic_hardware_context),
1282                                 GFP_KERNEL);
1283         if (!adapter->ahw) {
1284                 dev_err(&adapter->pdev->dev,
1285                         "Failed to allocate recv ctx resources for adapter\n");
1286                 err = -ENOMEM;
1287                 goto err_out;
1288         }
1289         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
1290                                 GFP_KERNEL);
1291         if (!adapter->recv_ctx) {
1292                 dev_err(&adapter->pdev->dev,
1293                         "Failed to allocate recv ctx resources for adapter\n");
1294                 kfree(adapter->ahw);
1295                 adapter->ahw = NULL;
1296                 err = -ENOMEM;
1297                 goto err_out;
1298         }
1299         /* Initialize interrupt coalesce parameters */
1300         adapter->ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1301         adapter->ahw->coal.rx_time_us = QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
1302         adapter->ahw->coal.rx_packets = QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
1303 err_out:
1304         return err;
1305 }
1306
1307 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
1308 {
1309         kfree(adapter->recv_ctx);
1310         adapter->recv_ctx = NULL;
1311
1312         if (adapter->ahw->fw_dump.tmpl_hdr) {
1313                 vfree(adapter->ahw->fw_dump.tmpl_hdr);
1314                 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1315         }
1316         kfree(adapter->ahw);
1317         adapter->ahw = NULL;
1318 }
1319
1320 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1321 {
1322         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1323         struct qlcnic_host_sds_ring *sds_ring;
1324         struct qlcnic_host_rds_ring *rds_ring;
1325         int ring;
1326         int ret;
1327
1328         netif_device_detach(netdev);
1329
1330         if (netif_running(netdev))
1331                 __qlcnic_down(adapter, netdev);
1332
1333         qlcnic_detach(adapter);
1334
1335         adapter->max_sds_rings = 1;
1336         adapter->ahw->diag_test = test;
1337
1338         ret = qlcnic_attach(adapter);
1339         if (ret) {
1340                 netif_device_attach(netdev);
1341                 return ret;
1342         }
1343
1344         ret = qlcnic_fw_create_ctx(adapter);
1345         if (ret) {
1346                 qlcnic_detach(adapter);
1347                 netif_device_attach(netdev);
1348                 return ret;
1349         }
1350
1351         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1352                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1353                 qlcnic_post_rx_buffers(adapter, rds_ring);
1354         }
1355
1356         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1357                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1358                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1359                         qlcnic_enable_int(sds_ring);
1360                 }
1361         }
1362
1363         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
1364                 adapter->ahw->loopback_state = 0;
1365                 qlcnic_linkevent_request(adapter, 1);
1366         }
1367
1368         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1369
1370         return 0;
1371 }
1372
1373 /* Reset context in hardware only */
1374 static int
1375 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1376 {
1377         struct net_device *netdev = adapter->netdev;
1378
1379         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1380                 return -EBUSY;
1381
1382         netif_device_detach(netdev);
1383
1384         qlcnic_down(adapter, netdev);
1385
1386         qlcnic_up(adapter, netdev);
1387
1388         netif_device_attach(netdev);
1389
1390         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1391         return 0;
1392 }
1393
1394 int
1395 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1396 {
1397         int err = 0;
1398         struct net_device *netdev = adapter->netdev;
1399
1400         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1401                 return -EBUSY;
1402
1403         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1404
1405                 netif_device_detach(netdev);
1406
1407                 if (netif_running(netdev))
1408                         __qlcnic_down(adapter, netdev);
1409
1410                 qlcnic_detach(adapter);
1411
1412                 if (netif_running(netdev)) {
1413                         err = qlcnic_attach(adapter);
1414                         if (!err) {
1415                                 __qlcnic_up(adapter, netdev);
1416                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1417                         }
1418                 }
1419
1420                 netif_device_attach(netdev);
1421         }
1422
1423         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1424         return err;
1425 }
1426
1427 static int
1428 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
1429                     int pci_using_dac)
1430 {
1431         int err;
1432         struct pci_dev *pdev = adapter->pdev;
1433
1434         adapter->ahw->mc_enabled = 0;
1435         adapter->ahw->max_mc_count = 38;
1436
1437         netdev->netdev_ops         = &qlcnic_netdev_ops;
1438         netdev->watchdog_timeo     = 5*HZ;
1439
1440         qlcnic_change_mtu(netdev, netdev->mtu);
1441
1442         SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1443
1444         netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM |
1445                 NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM;
1446
1447         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_TSO)
1448                 netdev->hw_features |= NETIF_F_TSO | NETIF_F_TSO6;
1449         if (pci_using_dac == 1)
1450                 netdev->hw_features |= NETIF_F_HIGHDMA;
1451
1452         netdev->vlan_features = netdev->hw_features;
1453
1454         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX)
1455                 netdev->hw_features |= NETIF_F_HW_VLAN_TX;
1456         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1457                 netdev->hw_features |= NETIF_F_LRO;
1458
1459         netdev->features |= netdev->hw_features |
1460                 NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER;
1461
1462         netdev->irq = adapter->msix_entries[0].vector;
1463
1464         err = register_netdev(netdev);
1465         if (err) {
1466                 dev_err(&pdev->dev, "failed to register net device\n");
1467                 return err;
1468         }
1469
1470         return 0;
1471 }
1472
1473 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
1474 {
1475         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1476                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1477                 *pci_using_dac = 1;
1478         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1479                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1480                 *pci_using_dac = 0;
1481         else {
1482                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1483                 return -EIO;
1484         }
1485
1486         return 0;
1487 }
1488
1489 static int
1490 qlcnic_alloc_msix_entries(struct qlcnic_adapter *adapter, u16 count)
1491 {
1492         adapter->msix_entries = kcalloc(count, sizeof(struct msix_entry),
1493                                         GFP_KERNEL);
1494
1495         if (adapter->msix_entries)
1496                 return 0;
1497
1498         dev_err(&adapter->pdev->dev, "failed allocating msix_entries\n");
1499         return -ENOMEM;
1500 }
1501
1502 static int
1503 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1504 {
1505         struct net_device *netdev = NULL;
1506         struct qlcnic_adapter *adapter = NULL;
1507         int err, pci_using_dac = -1;
1508         uint8_t revision_id;
1509         char board_name[QLCNIC_MAX_BOARD_NAME_LEN];
1510
1511         err = pci_enable_device(pdev);
1512         if (err)
1513                 return err;
1514
1515         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1516                 err = -ENODEV;
1517                 goto err_out_disable_pdev;
1518         }
1519
1520         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
1521         if (err)
1522                 goto err_out_disable_pdev;
1523
1524         err = pci_request_regions(pdev, qlcnic_driver_name);
1525         if (err)
1526                 goto err_out_disable_pdev;
1527
1528         pci_set_master(pdev);
1529         pci_enable_pcie_error_reporting(pdev);
1530
1531         netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1532         if (!netdev) {
1533                 err = -ENOMEM;
1534                 goto err_out_free_res;
1535         }
1536
1537         SET_NETDEV_DEV(netdev, &pdev->dev);
1538
1539         adapter = netdev_priv(netdev);
1540         adapter->netdev  = netdev;
1541         adapter->pdev    = pdev;
1542
1543         err = qlcnic_alloc_adapter_resources(adapter);
1544         if (err)
1545                 goto err_out_free_netdev;
1546
1547         adapter->dev_rst_time = jiffies;
1548         revision_id = pdev->revision;
1549         adapter->ahw->revision_id = revision_id;
1550         adapter->mac_learn = qlcnic_mac_learn;
1551
1552         rwlock_init(&adapter->ahw->crb_lock);
1553         mutex_init(&adapter->ahw->mem_lock);
1554
1555         spin_lock_init(&adapter->tx_clean_lock);
1556         INIT_LIST_HEAD(&adapter->mac_list);
1557
1558         err = qlcnic_setup_pci_map(pdev, adapter->ahw);
1559         if (err)
1560                 goto err_out_free_hw;
1561         qlcnic_check_vf(adapter);
1562
1563         /* This will be reset for mezz cards  */
1564         adapter->portnum = adapter->ahw->pci_func;
1565
1566         err = qlcnic_get_board_info(adapter);
1567         if (err) {
1568                 dev_err(&pdev->dev, "Error getting board config info.\n");
1569                 goto err_out_iounmap;
1570         }
1571
1572         err = qlcnic_setup_idc_param(adapter);
1573         if (err)
1574                 goto err_out_iounmap;
1575
1576         adapter->flags |= QLCNIC_NEED_FLR;
1577
1578         err = adapter->nic_ops->start_firmware(adapter);
1579         if (err) {
1580                 dev_err(&pdev->dev, "Loading fw failed. Please Reboot\n"
1581                         "\t\tIf reboot doesn't help, try flashing the card\n");
1582                 goto err_out_maintenance_mode;
1583         }
1584
1585         if (qlcnic_read_mac_addr(adapter))
1586                 dev_warn(&pdev->dev, "failed to read mac addr\n");
1587
1588         if (adapter->portnum == 0) {
1589                 qlcnic_get_board_name(adapter, board_name);
1590                 pr_info("%s: %s Board Chip rev 0x%x\n",
1591                         module_name(THIS_MODULE),
1592                         board_name, adapter->ahw->revision_id);
1593         }
1594
1595         qlcnic_clear_stats(adapter);
1596
1597         err = qlcnic_alloc_msix_entries(adapter, adapter->ahw->max_rx_ques);
1598         if (err)
1599                 goto err_out_decr_ref;
1600
1601         qlcnic_setup_intr(adapter);
1602
1603         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
1604         if (err)
1605                 goto err_out_disable_msi;
1606
1607         pci_set_drvdata(pdev, adapter);
1608
1609         if (qlcnic_82xx_check(adapter))
1610                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
1611                                      FW_POLL_DELAY);
1612
1613         switch (adapter->ahw->port_type) {
1614         case QLCNIC_GBE:
1615                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1616                                 adapter->netdev->name);
1617                 break;
1618         case QLCNIC_XGBE:
1619                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1620                                 adapter->netdev->name);
1621                 break;
1622         }
1623
1624         if (adapter->mac_learn)
1625                 qlcnic_alloc_lb_filters_mem(adapter);
1626
1627         qlcnic_create_diag_entries(adapter);
1628
1629         return 0;
1630
1631 err_out_disable_msi:
1632         qlcnic_teardown_intr(adapter);
1633         kfree(adapter->msix_entries);
1634
1635 err_out_decr_ref:
1636         qlcnic_clr_all_drv_state(adapter, 0);
1637
1638 err_out_iounmap:
1639         qlcnic_cleanup_pci_map(adapter);
1640
1641 err_out_free_hw:
1642         qlcnic_free_adapter_resources(adapter);
1643
1644 err_out_free_netdev:
1645         free_netdev(netdev);
1646
1647 err_out_free_res:
1648         pci_release_regions(pdev);
1649
1650 err_out_disable_pdev:
1651         pci_set_drvdata(pdev, NULL);
1652         pci_disable_device(pdev);
1653         return err;
1654
1655 err_out_maintenance_mode:
1656         netdev->netdev_ops = &qlcnic_netdev_failed_ops;
1657         SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_failed_ops);
1658         err = register_netdev(netdev);
1659         if (err) {
1660                 dev_err(&pdev->dev, "failed to register net device\n");
1661                 goto err_out_decr_ref;
1662         }
1663         pci_set_drvdata(pdev, adapter);
1664         qlcnic_create_diag_entries(adapter);
1665         return 0;
1666 }
1667
1668 static void qlcnic_remove(struct pci_dev *pdev)
1669 {
1670         struct qlcnic_adapter *adapter;
1671         struct net_device *netdev;
1672
1673         adapter = pci_get_drvdata(pdev);
1674         if (adapter == NULL)
1675                 return;
1676
1677         netdev = adapter->netdev;
1678
1679         qlcnic_cancel_fw_work(adapter);
1680
1681         unregister_netdev(netdev);
1682
1683         qlcnic_detach(adapter);
1684
1685         if (adapter->npars != NULL)
1686                 kfree(adapter->npars);
1687         if (adapter->eswitch != NULL)
1688                 kfree(adapter->eswitch);
1689
1690         if (qlcnic_82xx_check(adapter))
1691                 qlcnic_clr_all_drv_state(adapter, 0);
1692
1693         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1694
1695         qlcnic_free_lb_filters_mem(adapter);
1696
1697         qlcnic_teardown_intr(adapter);
1698         kfree(adapter->msix_entries);
1699
1700         qlcnic_remove_diag_entries(adapter);
1701
1702         qlcnic_cleanup_pci_map(adapter);
1703
1704         qlcnic_release_firmware(adapter);
1705
1706         pci_disable_pcie_error_reporting(pdev);
1707         pci_release_regions(pdev);
1708         pci_disable_device(pdev);
1709         pci_set_drvdata(pdev, NULL);
1710
1711         qlcnic_free_adapter_resources(adapter);
1712         free_netdev(netdev);
1713 }
1714 static int __qlcnic_shutdown(struct pci_dev *pdev)
1715 {
1716         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1717         struct net_device *netdev = adapter->netdev;
1718         int retval;
1719
1720         netif_device_detach(netdev);
1721
1722         qlcnic_cancel_fw_work(adapter);
1723
1724         if (netif_running(netdev))
1725                 qlcnic_down(adapter, netdev);
1726
1727         if (qlcnic_82xx_check(adapter))
1728                 qlcnic_clr_all_drv_state(adapter, 0);
1729
1730         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1731
1732         retval = pci_save_state(pdev);
1733         if (retval)
1734                 return retval;
1735
1736         if (qlcnic_82xx_check(adapter)) {
1737                 if (qlcnic_wol_supported(adapter)) {
1738                         pci_enable_wake(pdev, PCI_D3cold, 1);
1739                         pci_enable_wake(pdev, PCI_D3hot, 1);
1740                 }
1741         }
1742
1743         return 0;
1744 }
1745
1746 static void qlcnic_shutdown(struct pci_dev *pdev)
1747 {
1748         if (__qlcnic_shutdown(pdev))
1749                 return;
1750
1751         pci_disable_device(pdev);
1752 }
1753
1754 #ifdef CONFIG_PM
1755 static int
1756 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
1757 {
1758         int retval;
1759
1760         retval = __qlcnic_shutdown(pdev);
1761         if (retval)
1762                 return retval;
1763
1764         pci_set_power_state(pdev, pci_choose_state(pdev, state));
1765         return 0;
1766 }
1767
1768 static int
1769 qlcnic_resume(struct pci_dev *pdev)
1770 {
1771         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1772         struct net_device *netdev = adapter->netdev;
1773         int err;
1774
1775         err = pci_enable_device(pdev);
1776         if (err)
1777                 return err;
1778
1779         pci_set_power_state(pdev, PCI_D0);
1780         pci_set_master(pdev);
1781         pci_restore_state(pdev);
1782
1783         err = adapter->nic_ops->start_firmware(adapter);
1784         if (err) {
1785                 dev_err(&pdev->dev, "failed to start firmware\n");
1786                 return err;
1787         }
1788
1789         if (netif_running(netdev)) {
1790                 err = qlcnic_up(adapter, netdev);
1791                 if (err)
1792                         goto done;
1793
1794                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1795         }
1796 done:
1797         netif_device_attach(netdev);
1798         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1799         return 0;
1800 }
1801 #endif
1802
1803 static int qlcnic_open(struct net_device *netdev)
1804 {
1805         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1806         u32 state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
1807         int err;
1808
1809         if (state == QLCNIC_DEV_FAILED || (state == QLCNIC_DEV_BADBAD)) {
1810                 netdev_err(netdev, "Device in FAILED state\n");
1811                 return -EIO;
1812         }
1813
1814         netif_carrier_off(netdev);
1815
1816         err = qlcnic_attach(adapter);
1817         if (err)
1818                 return err;
1819
1820         err = __qlcnic_up(adapter, netdev);
1821         if (err)
1822                 goto err_out;
1823
1824         netif_start_queue(netdev);
1825
1826         return 0;
1827
1828 err_out:
1829         qlcnic_detach(adapter);
1830         return err;
1831 }
1832
1833 /*
1834  * qlcnic_close - Disables a network interface entry point
1835  */
1836 static int qlcnic_close(struct net_device *netdev)
1837 {
1838         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1839
1840         __qlcnic_down(adapter, netdev);
1841         return 0;
1842 }
1843
1844 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
1845 {
1846         void *head;
1847         int i;
1848
1849         if (adapter->fhash.fmax && adapter->fhash.fhead)
1850                 return;
1851
1852         spin_lock_init(&adapter->mac_learn_lock);
1853
1854         head = kcalloc(QLCNIC_LB_MAX_FILTERS, sizeof(struct hlist_head),
1855                                                                 GFP_KERNEL);
1856         if (!head)
1857                 return;
1858
1859         adapter->fhash.fmax = QLCNIC_LB_MAX_FILTERS;
1860         adapter->fhash.fhead = head;
1861
1862         for (i = 0; i < adapter->fhash.fmax; i++)
1863                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
1864 }
1865
1866 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
1867 {
1868         if (adapter->fhash.fmax && adapter->fhash.fhead)
1869                 kfree(adapter->fhash.fhead);
1870
1871         adapter->fhash.fhead = NULL;
1872         adapter->fhash.fmax = 0;
1873 }
1874
1875 static int qlcnic_check_temp(struct qlcnic_adapter *adapter)
1876 {
1877         struct net_device *netdev = adapter->netdev;
1878         u32 temp_state, temp_val, temp = 0;
1879         int rv = 0;
1880
1881         if (qlcnic_82xx_check(adapter))
1882                 temp = QLCRD32(adapter, CRB_TEMP_STATE);
1883
1884         temp_state = qlcnic_get_temp_state(temp);
1885         temp_val = qlcnic_get_temp_val(temp);
1886
1887         if (temp_state == QLCNIC_TEMP_PANIC) {
1888                 dev_err(&netdev->dev,
1889                        "Device temperature %d degrees C exceeds"
1890                        " maximum allowed. Hardware has been shut down.\n",
1891                        temp_val);
1892                 rv = 1;
1893         } else if (temp_state == QLCNIC_TEMP_WARN) {
1894                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
1895                         dev_err(&netdev->dev,
1896                                "Device temperature %d degrees C "
1897                                "exceeds operating range."
1898                                " Immediate action needed.\n",
1899                                temp_val);
1900                 }
1901         } else {
1902                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
1903                         dev_info(&netdev->dev,
1904                                "Device temperature is now %d degrees C"
1905                                " in normal range.\n", temp_val);
1906                 }
1907         }
1908         adapter->ahw->temp = temp_state;
1909         return rv;
1910 }
1911
1912 static void qlcnic_tx_timeout(struct net_device *netdev)
1913 {
1914         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1915
1916         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
1917                 return;
1918
1919         dev_err(&netdev->dev, "transmit timeout, resetting.\n");
1920
1921         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
1922                 adapter->need_fw_reset = 1;
1923         else
1924                 adapter->ahw->reset_context = 1;
1925 }
1926
1927 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
1928 {
1929         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1930         struct net_device_stats *stats = &netdev->stats;
1931
1932         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
1933         stats->tx_packets = adapter->stats.xmitfinished;
1934         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
1935         stats->tx_bytes = adapter->stats.txbytes;
1936         stats->rx_dropped = adapter->stats.rxdropped;
1937         stats->tx_dropped = adapter->stats.txdropped;
1938
1939         return stats;
1940 }
1941
1942 static irqreturn_t qlcnic_clear_legacy_intr(struct qlcnic_adapter *adapter)
1943 {
1944         u32 status;
1945
1946         status = readl(adapter->isr_int_vec);
1947
1948         if (!(status & adapter->ahw->int_vec_bit))
1949                 return IRQ_NONE;
1950
1951         /* check interrupt state machine, to be sure */
1952         status = readl(adapter->crb_int_state_reg);
1953         if (!ISR_LEGACY_INT_TRIGGERED(status))
1954                 return IRQ_NONE;
1955
1956         writel(0xffffffff, adapter->tgt_status_reg);
1957         /* read twice to ensure write is flushed */
1958         readl(adapter->isr_int_vec);
1959         readl(adapter->isr_int_vec);
1960
1961         return IRQ_HANDLED;
1962 }
1963
1964 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
1965 {
1966         struct qlcnic_host_sds_ring *sds_ring = data;
1967         struct qlcnic_adapter *adapter = sds_ring->adapter;
1968
1969         if (adapter->flags & QLCNIC_MSIX_ENABLED)
1970                 goto done;
1971         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
1972                 writel(0xffffffff, adapter->tgt_status_reg);
1973                 goto done;
1974         }
1975
1976         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
1977                 return IRQ_NONE;
1978
1979 done:
1980         adapter->ahw->diag_cnt++;
1981         qlcnic_enable_int(sds_ring);
1982         return IRQ_HANDLED;
1983 }
1984
1985 static irqreturn_t qlcnic_intr(int irq, void *data)
1986 {
1987         struct qlcnic_host_sds_ring *sds_ring = data;
1988         struct qlcnic_adapter *adapter = sds_ring->adapter;
1989
1990         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
1991                 return IRQ_NONE;
1992
1993         napi_schedule(&sds_ring->napi);
1994
1995         return IRQ_HANDLED;
1996 }
1997
1998 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
1999 {
2000         struct qlcnic_host_sds_ring *sds_ring = data;
2001         struct qlcnic_adapter *adapter = sds_ring->adapter;
2002
2003         /* clear interrupt */
2004         writel(0xffffffff, adapter->tgt_status_reg);
2005
2006         napi_schedule(&sds_ring->napi);
2007         return IRQ_HANDLED;
2008 }
2009
2010 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2011 {
2012         struct qlcnic_host_sds_ring *sds_ring = data;
2013
2014         napi_schedule(&sds_ring->napi);
2015         return IRQ_HANDLED;
2016 }
2017
2018 #ifdef CONFIG_NET_POLL_CONTROLLER
2019 static void qlcnic_poll_controller(struct net_device *netdev)
2020 {
2021         int ring;
2022         struct qlcnic_host_sds_ring *sds_ring;
2023         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2024         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2025
2026         disable_irq(adapter->irq);
2027         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2028                 sds_ring = &recv_ctx->sds_rings[ring];
2029                 qlcnic_intr(adapter->irq, sds_ring);
2030         }
2031         enable_irq(adapter->irq);
2032 }
2033 #endif
2034
2035 static void
2036 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2037 {
2038         u32 val;
2039
2040         val = adapter->portnum & 0xf;
2041         val |= encoding << 7;
2042         val |= (jiffies - adapter->dev_rst_time) << 8;
2043
2044         QLCWR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2045         adapter->dev_rst_time = jiffies;
2046 }
2047
2048 static int
2049 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2050 {
2051         u32  val;
2052
2053         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2054                         state != QLCNIC_DEV_NEED_QUISCENT);
2055
2056         if (qlcnic_api_lock(adapter))
2057                 return -EIO;
2058
2059         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2060
2061         if (state == QLCNIC_DEV_NEED_RESET)
2062                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2063         else if (state == QLCNIC_DEV_NEED_QUISCENT)
2064                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2065
2066         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2067
2068         qlcnic_api_unlock(adapter);
2069
2070         return 0;
2071 }
2072
2073 static int
2074 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2075 {
2076         u32  val;
2077
2078         if (qlcnic_api_lock(adapter))
2079                 return -EBUSY;
2080
2081         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2082         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2083         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2084
2085         qlcnic_api_unlock(adapter);
2086
2087         return 0;
2088 }
2089
2090 static void
2091 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2092 {
2093         u32  val;
2094
2095         if (qlcnic_api_lock(adapter))
2096                 goto err;
2097
2098         val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2099         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2100         QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2101
2102         if (failed) {
2103                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
2104                 dev_info(&adapter->pdev->dev,
2105                                 "Device state set to Failed. Please Reboot\n");
2106         } else if (!(val & 0x11111111))
2107                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_COLD);
2108
2109         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2110         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2111         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2112
2113         qlcnic_api_unlock(adapter);
2114 err:
2115         adapter->fw_fail_cnt = 0;
2116         adapter->flags &= ~QLCNIC_FW_HANG;
2117         clear_bit(__QLCNIC_START_FW, &adapter->state);
2118         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2119 }
2120
2121 /* Grab api lock, before checking state */
2122 static int
2123 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2124 {
2125         int act, state, active_mask;
2126
2127         state = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2128         act = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2129
2130         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
2131                 active_mask = (~(1 << (adapter->ahw->pci_func * 4)));
2132                 act = act & active_mask;
2133         }
2134
2135         if (((state & 0x11111111) == (act & 0x11111111)) ||
2136                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2137                 return 0;
2138         else
2139                 return 1;
2140 }
2141
2142 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2143 {
2144         u32 val = QLCRD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2145
2146         if (val != QLCNIC_DRV_IDC_VER) {
2147                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2148                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2149         }
2150
2151         return 0;
2152 }
2153
2154 static int
2155 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2156 {
2157         u32 val, prev_state;
2158         u8 dev_init_timeo = adapter->dev_init_timeo;
2159         u8 portnum = adapter->portnum;
2160         u8 ret;
2161
2162         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2163                 return 1;
2164
2165         if (qlcnic_api_lock(adapter))
2166                 return -1;
2167
2168         val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2169         if (!(val & (1 << (portnum * 4)))) {
2170                 QLC_DEV_SET_REF_CNT(val, portnum);
2171                 QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2172         }
2173
2174         prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2175         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2176
2177         switch (prev_state) {
2178         case QLCNIC_DEV_COLD:
2179                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
2180                 QLCWR32(adapter, QLCNIC_CRB_DRV_IDC_VER, QLCNIC_DRV_IDC_VER);
2181                 qlcnic_idc_debug_info(adapter, 0);
2182                 qlcnic_api_unlock(adapter);
2183                 return 1;
2184
2185         case QLCNIC_DEV_READY:
2186                 ret = qlcnic_check_idc_ver(adapter);
2187                 qlcnic_api_unlock(adapter);
2188                 return ret;
2189
2190         case QLCNIC_DEV_NEED_RESET:
2191                 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2192                 QLC_DEV_SET_RST_RDY(val, portnum);
2193                 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2194                 break;
2195
2196         case QLCNIC_DEV_NEED_QUISCENT:
2197                 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2198                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
2199                 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2200                 break;
2201
2202         case QLCNIC_DEV_FAILED:
2203                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
2204                 qlcnic_api_unlock(adapter);
2205                 return -1;
2206
2207         case QLCNIC_DEV_INITIALIZING:
2208         case QLCNIC_DEV_QUISCENT:
2209                 break;
2210         }
2211
2212         qlcnic_api_unlock(adapter);
2213
2214         do {
2215                 msleep(1000);
2216                 prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2217
2218                 if (prev_state == QLCNIC_DEV_QUISCENT)
2219                         continue;
2220         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
2221
2222         if (!dev_init_timeo) {
2223                 dev_err(&adapter->pdev->dev,
2224                         "Waiting for device to initialize timeout\n");
2225                 return -1;
2226         }
2227
2228         if (qlcnic_api_lock(adapter))
2229                 return -1;
2230
2231         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2232         QLC_DEV_CLR_RST_QSCNT(val, portnum);
2233         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2234
2235         ret = qlcnic_check_idc_ver(adapter);
2236         qlcnic_api_unlock(adapter);
2237
2238         return ret;
2239 }
2240
2241 static void
2242 qlcnic_fwinit_work(struct work_struct *work)
2243 {
2244         struct qlcnic_adapter *adapter = container_of(work,
2245                         struct qlcnic_adapter, fw_work.work);
2246         u32 dev_state = 0xf;
2247         u32 val;
2248
2249         if (qlcnic_api_lock(adapter))
2250                 goto err_ret;
2251
2252         dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2253         if (dev_state == QLCNIC_DEV_QUISCENT ||
2254             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2255                 qlcnic_api_unlock(adapter);
2256                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2257                                                 FW_POLL_DELAY * 2);
2258                 return;
2259         }
2260
2261         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
2262                 qlcnic_api_unlock(adapter);
2263                 goto wait_npar;
2264         }
2265
2266         if (dev_state == QLCNIC_DEV_INITIALIZING ||
2267             dev_state == QLCNIC_DEV_READY) {
2268                 dev_info(&adapter->pdev->dev, "Detected state change from "
2269                                 "DEV_NEED_RESET, skipping ack check\n");
2270                 goto skip_ack_check;
2271         }
2272
2273         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2274                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2275                                         adapter->reset_ack_timeo);
2276                 goto skip_ack_check;
2277         }
2278
2279         if (!qlcnic_check_drv_state(adapter)) {
2280 skip_ack_check:
2281                 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2282
2283                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2284                         QLCWR32(adapter, QLCNIC_CRB_DEV_STATE,
2285                                                 QLCNIC_DEV_INITIALIZING);
2286                         set_bit(__QLCNIC_START_FW, &adapter->state);
2287                         QLCDB(adapter, DRV, "Restarting fw\n");
2288                         qlcnic_idc_debug_info(adapter, 0);
2289                         val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2290                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2291                         QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2292                 }
2293
2294                 qlcnic_api_unlock(adapter);
2295
2296                 rtnl_lock();
2297                 if (adapter->ahw->fw_dump.enable &&
2298                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2299                         QLCDB(adapter, DRV, "Take FW dump\n");
2300                         qlcnic_dump_fw(adapter);
2301                         adapter->flags |= QLCNIC_FW_HANG;
2302                 }
2303                 rtnl_unlock();
2304
2305                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
2306                 if (!adapter->nic_ops->start_firmware(adapter)) {
2307                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2308                         adapter->fw_wait_cnt = 0;
2309                         return;
2310                 }
2311                 goto err_ret;
2312         }
2313
2314         qlcnic_api_unlock(adapter);
2315
2316 wait_npar:
2317         dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2318         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
2319
2320         switch (dev_state) {
2321         case QLCNIC_DEV_READY:
2322                 if (!adapter->nic_ops->start_firmware(adapter)) {
2323                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2324                         adapter->fw_wait_cnt = 0;
2325                         return;
2326                 }
2327         case QLCNIC_DEV_FAILED:
2328                 break;
2329         default:
2330                 qlcnic_schedule_work(adapter,
2331                         qlcnic_fwinit_work, FW_POLL_DELAY);
2332                 return;
2333         }
2334
2335 err_ret:
2336         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2337                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
2338         netif_device_attach(adapter->netdev);
2339         qlcnic_clr_all_drv_state(adapter, 0);
2340 }
2341
2342 static void
2343 qlcnic_detach_work(struct work_struct *work)
2344 {
2345         struct qlcnic_adapter *adapter = container_of(work,
2346                         struct qlcnic_adapter, fw_work.work);
2347         struct net_device *netdev = adapter->netdev;
2348         u32 status;
2349
2350         netif_device_detach(netdev);
2351
2352         /* Dont grab rtnl lock during Quiscent mode */
2353         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2354                 if (netif_running(netdev))
2355                         __qlcnic_down(adapter, netdev);
2356         } else
2357                 qlcnic_down(adapter, netdev);
2358
2359         status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2360
2361         if (status & QLCNIC_RCODE_FATAL_ERROR) {
2362                 dev_err(&adapter->pdev->dev,
2363                         "Detaching the device: peg halt status1=0x%x\n",
2364                                         status);
2365
2366                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
2367                         dev_err(&adapter->pdev->dev,
2368                         "On board active cooling fan failed. "
2369                                 "Device has been halted.\n");
2370                         dev_err(&adapter->pdev->dev,
2371                                 "Replace the adapter.\n");
2372                 }
2373
2374                 goto err_ret;
2375         }
2376
2377         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
2378                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
2379                         adapter->ahw->temp);
2380                 goto err_ret;
2381         }
2382
2383         /* Dont ack if this instance is the reset owner */
2384         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2385                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
2386                         dev_err(&adapter->pdev->dev,
2387                                 "Failed to set driver state,"
2388                                         "detaching the device.\n");
2389                         goto err_ret;
2390                 }
2391         }
2392
2393         adapter->fw_wait_cnt = 0;
2394
2395         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2396
2397         return;
2398
2399 err_ret:
2400         netif_device_attach(netdev);
2401         qlcnic_clr_all_drv_state(adapter, 1);
2402 }
2403
2404 /*Transit NPAR state to NON Operational */
2405 static void
2406 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
2407 {
2408         u32 state;
2409
2410         state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2411         if (state == QLCNIC_DEV_NPAR_NON_OPER)
2412                 return;
2413
2414         if (qlcnic_api_lock(adapter))
2415                 return;
2416         QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
2417         qlcnic_api_unlock(adapter);
2418 }
2419
2420 /*Transit to RESET state from READY state only */
2421 void
2422 qlcnic_dev_request_reset(struct qlcnic_adapter *adapter)
2423 {
2424         u32 state, xg_val = 0, gb_val = 0;
2425
2426         qlcnic_xg_set_xg0_mask(xg_val);
2427         qlcnic_xg_set_xg1_mask(xg_val);
2428         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
2429         qlcnic_gb_set_gb0_mask(gb_val);
2430         qlcnic_gb_set_gb1_mask(gb_val);
2431         qlcnic_gb_set_gb2_mask(gb_val);
2432         qlcnic_gb_set_gb3_mask(gb_val);
2433         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
2434         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
2435                                 " on all ports\n");
2436         adapter->need_fw_reset = 1;
2437         if (qlcnic_api_lock(adapter))
2438                 return;
2439
2440         state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2441         if (state  == QLCNIC_DEV_FAILED || (state == QLCNIC_DEV_BADBAD)) {
2442                 netdev_err(adapter->netdev,
2443                                 "Device is in FAILED state, Please Reboot\n");
2444                 qlcnic_api_unlock(adapter);
2445                 return;
2446         }
2447
2448         if (state == QLCNIC_DEV_READY) {
2449                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_RESET);
2450                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
2451                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
2452                 qlcnic_idc_debug_info(adapter, 0);
2453         }
2454
2455         QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
2456         qlcnic_api_unlock(adapter);
2457 }
2458
2459 /* Transit to NPAR READY state from NPAR NOT READY state */
2460 static void
2461 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
2462 {
2463         if (qlcnic_api_lock(adapter))
2464                 return;
2465
2466         QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_OPER);
2467         QLCDB(adapter, DRV, "NPAR operational state set\n");
2468
2469         qlcnic_api_unlock(adapter);
2470 }
2471
2472 static void
2473 qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2474                 work_func_t func, int delay)
2475 {
2476         if (test_bit(__QLCNIC_AER, &adapter->state))
2477                 return;
2478
2479         INIT_DELAYED_WORK(&adapter->fw_work, func);
2480         queue_delayed_work(qlcnic_wq, &adapter->fw_work,
2481                                         round_jiffies_relative(delay));
2482 }
2483
2484 static void
2485 qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter)
2486 {
2487         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2488                 msleep(10);
2489
2490         if (!adapter->fw_work.work.func)
2491                 return;
2492
2493         cancel_delayed_work_sync(&adapter->fw_work);
2494 }
2495
2496 static void
2497 qlcnic_attach_work(struct work_struct *work)
2498 {
2499         struct qlcnic_adapter *adapter = container_of(work,
2500                                 struct qlcnic_adapter, fw_work.work);
2501         struct net_device *netdev = adapter->netdev;
2502         u32 npar_state;
2503
2504         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
2505                 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2506                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
2507                         qlcnic_clr_all_drv_state(adapter, 0);
2508                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
2509                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
2510                                                         FW_POLL_DELAY);
2511                 else
2512                         goto attach;
2513                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
2514                 return;
2515         }
2516 attach:
2517         if (netif_running(netdev)) {
2518                 if (qlcnic_up(adapter, netdev))
2519                         goto done;
2520
2521                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2522         }
2523
2524 done:
2525         netif_device_attach(netdev);
2526         adapter->fw_fail_cnt = 0;
2527         adapter->flags &= ~QLCNIC_FW_HANG;
2528         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2529
2530         if (!qlcnic_clr_drv_state(adapter))
2531                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2532                                                         FW_POLL_DELAY);
2533 }
2534
2535 static int
2536 qlcnic_check_health(struct qlcnic_adapter *adapter)
2537 {
2538         u32 state = 0, heartbeat;
2539         u32 peg_status;
2540
2541         if (qlcnic_check_temp(adapter))
2542                 goto detach;
2543
2544         if (adapter->need_fw_reset)
2545                 qlcnic_dev_request_reset(adapter);
2546
2547         state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2548         if (state == QLCNIC_DEV_NEED_RESET) {
2549                 qlcnic_set_npar_non_operational(adapter);
2550                 adapter->need_fw_reset = 1;
2551         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
2552                 goto detach;
2553
2554         heartbeat = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
2555         if (heartbeat != adapter->heartbeat) {
2556                 adapter->heartbeat = heartbeat;
2557                 adapter->fw_fail_cnt = 0;
2558                 if (adapter->need_fw_reset)
2559                         goto detach;
2560
2561                 if (adapter->ahw->reset_context && auto_fw_reset) {
2562                         qlcnic_reset_hw_context(adapter);
2563                         adapter->netdev->trans_start = jiffies;
2564                 }
2565
2566                 return 0;
2567         }
2568
2569         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2570                 return 0;
2571
2572         adapter->flags |= QLCNIC_FW_HANG;
2573
2574         qlcnic_dev_request_reset(adapter);
2575
2576         if (auto_fw_reset)
2577                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
2578
2579         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
2580         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
2581                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
2582                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
2583                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
2584                         "PEG_NET_4_PC: 0x%x\n",
2585                         QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1),
2586                         QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS2),
2587                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c),
2588                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c),
2589                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c),
2590                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c),
2591                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c));
2592         peg_status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2593         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
2594                 dev_err(&adapter->pdev->dev,
2595                         "Firmware aborted with error code 0x00006700. "
2596                                 "Device is being reset.\n");
2597 detach:
2598         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
2599                 QLCNIC_DEV_NEED_RESET;
2600
2601         if (auto_fw_reset &&
2602                 !test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) {
2603
2604                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
2605                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
2606         }
2607
2608         return 1;
2609 }
2610
2611 static void
2612 qlcnic_fw_poll_work(struct work_struct *work)
2613 {
2614         struct qlcnic_adapter *adapter = container_of(work,
2615                                 struct qlcnic_adapter, fw_work.work);
2616
2617         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2618                 goto reschedule;
2619
2620
2621         if (qlcnic_check_health(adapter))
2622                 return;
2623
2624         if (adapter->fhash.fnum)
2625                 qlcnic_prune_lb_filters(adapter);
2626
2627 reschedule:
2628         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
2629 }
2630
2631 static int qlcnic_is_first_func(struct pci_dev *pdev)
2632 {
2633         struct pci_dev *oth_pdev;
2634         int val = pdev->devfn;
2635
2636         while (val-- > 0) {
2637                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
2638                         (pdev->bus), pdev->bus->number,
2639                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
2640                 if (!oth_pdev)
2641                         continue;
2642
2643                 if (oth_pdev->current_state != PCI_D3cold) {
2644                         pci_dev_put(oth_pdev);
2645                         return 0;
2646                 }
2647                 pci_dev_put(oth_pdev);
2648         }
2649         return 1;
2650 }
2651
2652 static int qlcnic_attach_func(struct pci_dev *pdev)
2653 {
2654         int err, first_func;
2655         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2656         struct net_device *netdev = adapter->netdev;
2657
2658         pdev->error_state = pci_channel_io_normal;
2659
2660         err = pci_enable_device(pdev);
2661         if (err)
2662                 return err;
2663
2664         pci_set_power_state(pdev, PCI_D0);
2665         pci_set_master(pdev);
2666         pci_restore_state(pdev);
2667
2668         first_func = qlcnic_is_first_func(pdev);
2669
2670         if (qlcnic_api_lock(adapter))
2671                 return -EINVAL;
2672
2673         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
2674                 adapter->need_fw_reset = 1;
2675                 set_bit(__QLCNIC_START_FW, &adapter->state);
2676                 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
2677                 QLCDB(adapter, DRV, "Restarting fw\n");
2678         }
2679         qlcnic_api_unlock(adapter);
2680
2681         err = adapter->nic_ops->start_firmware(adapter);
2682         if (err)
2683                 return err;
2684
2685         qlcnic_clr_drv_state(adapter);
2686         qlcnic_setup_intr(adapter);
2687
2688         if (netif_running(netdev)) {
2689                 err = qlcnic_attach(adapter);
2690                 if (err) {
2691                         qlcnic_clr_all_drv_state(adapter, 1);
2692                         clear_bit(__QLCNIC_AER, &adapter->state);
2693                         netif_device_attach(netdev);
2694                         return err;
2695                 }
2696
2697                 err = qlcnic_up(adapter, netdev);
2698                 if (err)
2699                         goto done;
2700
2701                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2702         }
2703  done:
2704         netif_device_attach(netdev);
2705         return err;
2706 }
2707
2708 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
2709                                                 pci_channel_state_t state)
2710 {
2711         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2712         struct net_device *netdev = adapter->netdev;
2713
2714         if (state == pci_channel_io_perm_failure)
2715                 return PCI_ERS_RESULT_DISCONNECT;
2716
2717         if (state == pci_channel_io_normal)
2718                 return PCI_ERS_RESULT_RECOVERED;
2719
2720         set_bit(__QLCNIC_AER, &adapter->state);
2721         netif_device_detach(netdev);
2722
2723         cancel_delayed_work_sync(&adapter->fw_work);
2724
2725         if (netif_running(netdev))
2726                 qlcnic_down(adapter, netdev);
2727
2728         qlcnic_detach(adapter);
2729         qlcnic_teardown_intr(adapter);
2730
2731         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2732
2733         pci_save_state(pdev);
2734         pci_disable_device(pdev);
2735
2736         return PCI_ERS_RESULT_NEED_RESET;
2737 }
2738
2739 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
2740 {
2741         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
2742                                 PCI_ERS_RESULT_RECOVERED;
2743 }
2744
2745 static void qlcnic_io_resume(struct pci_dev *pdev)
2746 {
2747         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2748
2749         pci_cleanup_aer_uncorrect_error_status(pdev);
2750
2751         if (QLCRD32(adapter, QLCNIC_CRB_DEV_STATE) == QLCNIC_DEV_READY &&
2752             test_and_clear_bit(__QLCNIC_AER, &adapter->state))
2753                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2754                                                 FW_POLL_DELAY);
2755 }
2756
2757 static int
2758 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
2759 {
2760         int err;
2761
2762         err = qlcnic_can_start_firmware(adapter);
2763         if (err)
2764                 return err;
2765
2766         err = qlcnic_check_npar_opertional(adapter);
2767         if (err)
2768                 return err;
2769
2770         err = qlcnic_initialize_nic(adapter);
2771         if (err)
2772                 return err;
2773
2774         qlcnic_check_options(adapter);
2775
2776         err = qlcnic_set_eswitch_port_config(adapter);
2777         if (err)
2778                 return err;
2779
2780         adapter->need_fw_reset = 0;
2781
2782         return err;
2783 }
2784
2785 int qlcnic_validate_max_rss(struct net_device *netdev, u8 max_hw, u8 val)
2786 {
2787         if (!use_msi_x && !use_msi) {
2788                 netdev_info(netdev, "no msix or msi support, hence no rss\n");
2789                 return -EINVAL;
2790         }
2791
2792         if ((val > max_hw) || (val <  2) || !is_power_of_2(val)) {
2793                 netdev_info(netdev, "rss_ring valid range [2 - %x] in "
2794                         " powers of 2\n", max_hw);
2795                 return -EINVAL;
2796         }
2797         return 0;
2798
2799 }
2800
2801 int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data)
2802 {
2803         struct net_device *netdev = adapter->netdev;
2804         int err = 0;
2805
2806         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2807                 return -EBUSY;
2808
2809         netif_device_detach(netdev);
2810         if (netif_running(netdev))
2811                 __qlcnic_down(adapter, netdev);
2812         qlcnic_detach(adapter);
2813         qlcnic_teardown_intr(adapter);
2814
2815         if (qlcnic_enable_msix(adapter, data)) {
2816                 netdev_info(netdev, "failed setting max_rss; rss disabled\n");
2817                 qlcnic_enable_msi_legacy(adapter);
2818         }
2819
2820         if (netif_running(netdev)) {
2821                 err = qlcnic_attach(adapter);
2822                 if (err)
2823                         goto done;
2824                 err = __qlcnic_up(adapter, netdev);
2825                 if (err)
2826                         goto done;
2827                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2828         }
2829  done:
2830         netif_device_attach(netdev);
2831         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2832         return err;
2833 }
2834
2835 #ifdef CONFIG_INET
2836
2837 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
2838
2839 static void
2840 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
2841                         struct net_device *dev, unsigned long event)
2842 {
2843         struct in_device *indev;
2844
2845         indev = in_dev_get(dev);
2846         if (!indev)
2847                 return;
2848
2849         for_ifa(indev) {
2850                 switch (event) {
2851                 case NETDEV_UP:
2852                         qlcnic_config_ipaddr(adapter,
2853                                         ifa->ifa_address, QLCNIC_IP_UP);
2854                         break;
2855                 case NETDEV_DOWN:
2856                         qlcnic_config_ipaddr(adapter,
2857                                         ifa->ifa_address, QLCNIC_IP_DOWN);
2858                         break;
2859                 default:
2860                         break;
2861                 }
2862         } endfor_ifa(indev);
2863
2864         in_dev_put(indev);
2865 }
2866
2867 static void
2868 qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
2869 {
2870         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2871         struct net_device *dev;
2872         u16 vid;
2873
2874         qlcnic_config_indev_addr(adapter, netdev, event);
2875
2876         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
2877                 dev = __vlan_find_dev_deep(netdev, vid);
2878                 if (!dev)
2879                         continue;
2880                 qlcnic_config_indev_addr(adapter, dev, event);
2881         }
2882 }
2883
2884 static int qlcnic_netdev_event(struct notifier_block *this,
2885                                  unsigned long event, void *ptr)
2886 {
2887         struct qlcnic_adapter *adapter;
2888         struct net_device *dev = (struct net_device *)ptr;
2889
2890 recheck:
2891         if (dev == NULL)
2892                 goto done;
2893
2894         if (dev->priv_flags & IFF_802_1Q_VLAN) {
2895                 dev = vlan_dev_real_dev(dev);
2896                 goto recheck;
2897         }
2898
2899         if (!is_qlcnic_netdev(dev))
2900                 goto done;
2901
2902         adapter = netdev_priv(dev);
2903
2904         if (!adapter)
2905                 goto done;
2906
2907         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
2908                 goto done;
2909
2910         qlcnic_config_indev_addr(adapter, dev, event);
2911 done:
2912         return NOTIFY_DONE;
2913 }
2914
2915 static int
2916 qlcnic_inetaddr_event(struct notifier_block *this,
2917                 unsigned long event, void *ptr)
2918 {
2919         struct qlcnic_adapter *adapter;
2920         struct net_device *dev;
2921
2922         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2923
2924         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2925
2926 recheck:
2927         if (dev == NULL)
2928                 goto done;
2929
2930         if (dev->priv_flags & IFF_802_1Q_VLAN) {
2931                 dev = vlan_dev_real_dev(dev);
2932                 goto recheck;
2933         }
2934
2935         if (!is_qlcnic_netdev(dev))
2936                 goto done;
2937
2938         adapter = netdev_priv(dev);
2939
2940         if (!adapter)
2941                 goto done;
2942
2943         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
2944                 goto done;
2945
2946         switch (event) {
2947         case NETDEV_UP:
2948                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
2949                 break;
2950         case NETDEV_DOWN:
2951                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
2952                 break;
2953         default:
2954                 break;
2955         }
2956
2957 done:
2958         return NOTIFY_DONE;
2959 }
2960
2961 static struct notifier_block    qlcnic_netdev_cb = {
2962         .notifier_call = qlcnic_netdev_event,
2963 };
2964
2965 static struct notifier_block qlcnic_inetaddr_cb = {
2966         .notifier_call = qlcnic_inetaddr_event,
2967 };
2968 #else
2969 static void
2970 qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
2971 { }
2972 #endif
2973 static struct pci_error_handlers qlcnic_err_handler = {
2974         .error_detected = qlcnic_io_error_detected,
2975         .slot_reset = qlcnic_io_slot_reset,
2976         .resume = qlcnic_io_resume,
2977 };
2978
2979 static struct pci_driver qlcnic_driver = {
2980         .name = qlcnic_driver_name,
2981         .id_table = qlcnic_pci_tbl,
2982         .probe = qlcnic_probe,
2983         .remove = qlcnic_remove,
2984 #ifdef CONFIG_PM
2985         .suspend = qlcnic_suspend,
2986         .resume = qlcnic_resume,
2987 #endif
2988         .shutdown = qlcnic_shutdown,
2989         .err_handler = &qlcnic_err_handler
2990
2991 };
2992
2993 static int __init qlcnic_init_module(void)
2994 {
2995         int ret;
2996
2997         printk(KERN_INFO "%s\n", qlcnic_driver_string);
2998
2999         qlcnic_wq = create_singlethread_workqueue("qlcnic");
3000         if (qlcnic_wq == NULL) {
3001                 printk(KERN_ERR "qlcnic: cannot create workqueue\n");
3002                 return -ENOMEM;
3003         }
3004
3005 #ifdef CONFIG_INET
3006         register_netdevice_notifier(&qlcnic_netdev_cb);
3007         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
3008 #endif
3009
3010         ret = pci_register_driver(&qlcnic_driver);
3011         if (ret) {
3012 #ifdef CONFIG_INET
3013                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3014                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3015 #endif
3016                 destroy_workqueue(qlcnic_wq);
3017         }
3018
3019         return ret;
3020 }
3021
3022 module_init(qlcnic_init_module);
3023
3024 static void __exit qlcnic_exit_module(void)
3025 {
3026
3027         pci_unregister_driver(&qlcnic_driver);
3028
3029 #ifdef CONFIG_INET
3030         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3031         unregister_netdevice_notifier(&qlcnic_netdev_cb);
3032 #endif
3033         destroy_workqueue(qlcnic_wq);
3034 }
3035
3036 module_exit(qlcnic_exit_module);