drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c

   1 /*
   2  * QLogic qlcnic NIC Driver
   3  * Copyright (c) 2009-2013 QLogic Corporation
   4  *
   5  * See LICENSE.qlcnic for copyright and licensing details.
   6  */
   7
   8 #include <linux/vmalloc.h>
   9 #include <linux/interrupt.h>
  10
  11 #include "qlcnic.h"
  12 #include "qlcnic_sriov.h"
  13 #include "qlcnic_hw.h"
  14
  15 #include <linux/swab.h>
  16 #include <linux/dma-mapping.h>
  17 #include <linux/if_vlan.h>
  18 #include <net/ip.h>
  19 #include <linux/ipv6.h>
  20 #include <linux/inetdevice.h>
  21 #include <linux/aer.h>
  22 #include <linux/log2.h>
  23 #include <linux/pci.h>
  24 #ifdef CONFIG_QLCNIC_VXLAN
  25 #include <net/vxlan.h>
  26 #endif
  27
  28 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
  29 MODULE_LICENSE("GPL");
  30 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
  31 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
  32
  33 char qlcnic_driver_name[] = "qlcnic";
  34 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
  35         "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
  36
  37 static int qlcnic_mac_learn;
  38 module_param(qlcnic_mac_learn, int, 0444);
  39 MODULE_PARM_DESC(qlcnic_mac_learn,
  40                  "Mac Filter (0=learning is disabled, 1=Driver learning is enabled, 2=FDB learning is enabled)");
  41
  42 int qlcnic_use_msi = 1;
  43 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled)");
  44 module_param_named(use_msi, qlcnic_use_msi, int, 0444);
  45
  46 int qlcnic_use_msi_x = 1;
  47 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled)");
  48 module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444);
  49
  50 int qlcnic_auto_fw_reset = 1;
  51 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled)");
  52 module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644);
  53
  54 int qlcnic_load_fw_file;
  55 MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file)");
  56 module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);
  57
  58 static int qlcnic_probe(struct pci_dev *pdev, 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 #ifdef CONFIG_NET_POLL_CONTROLLER
  66 static void qlcnic_poll_controller(struct net_device *netdev);
  67 #endif
  68
  69 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
  70 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
  71
  72 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
  73 static irqreturn_t qlcnic_intr(int irq, void *data);
  74 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
  75 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
  76 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data);
  77
  78 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
  79 static int qlcnic_start_firmware(struct qlcnic_adapter *);
  80
  81 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
  82 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
  83 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
  84 static int qlcnic_vlan_rx_add(struct net_device *, __be16, u16);
  85 static int qlcnic_vlan_rx_del(struct net_device *, __be16, u16);
  86
  87 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *);
  88 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *, u32);
  89 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *);
  90 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *);
  91 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *);
  92 static void qlcnic_82xx_io_resume(struct pci_dev *);
  93 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *);
  94 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *,
  95                                                       pci_channel_state_t);
  96 static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
  97 {
  98         struct qlcnic_hardware_context *ahw = adapter->ahw;
  99
 100         if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
 101                 return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
 102         else
 103                 return 1;
 104 }
 105
 106 /*  PCI Device ID Table  */
 107 #define ENTRY(device) \
 108         {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
 109         .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
 110
 111 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
 112         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
 113         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
 114         ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE834X),
 115         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE844X),
 116         ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE844X),
 117         {0,}
 118 };
 119
 120 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
 121
 122
 123 inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
 124 {
 125         writel(tx_ring->producer, tx_ring->crb_cmd_producer);
 126 }
 127
 128 static const u32 msi_tgt_status[8] = {
 129         ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
 130         ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
 131         ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
 132         ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
 133 };
 134
 135 static const u32 qlcnic_reg_tbl[] = {
 136         0x1B20A8,       /* PEG_HALT_STAT1 */
 137         0x1B20AC,       /* PEG_HALT_STAT2 */
 138         0x1B20B0,       /* FW_HEARTBEAT */
 139         0x1B2100,       /* LOCK ID */
 140         0x1B2128,       /* FW_CAPABILITIES */
 141         0x1B2138,       /* drv active */
 142         0x1B2140,       /* dev state */
 143         0x1B2144,       /* drv state */
 144         0x1B2148,       /* drv scratch */
 145         0x1B214C,       /* dev partition info */
 146         0x1B2174,       /* drv idc ver */
 147         0x1B2150,       /* fw version major */
 148         0x1B2154,       /* fw version minor */
 149         0x1B2158,       /* fw version sub */
 150         0x1B219C,       /* npar state */
 151         0x1B21FC,       /* FW_IMG_VALID */
 152         0x1B2250,       /* CMD_PEG_STATE */
 153         0x1B233C,       /* RCV_PEG_STATE */
 154         0x1B23B4,       /* ASIC TEMP */
 155         0x1B216C,       /* FW api */
 156         0x1B2170,       /* drv op mode */
 157         0x13C010,       /* flash lock */
 158         0x13C014,       /* flash unlock */
 159 };
 160
 161 static const struct qlcnic_board_info qlcnic_boards[] = {
 162         { PCI_VENDOR_ID_QLOGIC,
 163           PCI_DEVICE_ID_QLOGIC_QLE844X,
 164           0x0,
 165           0x0,
 166           "8400 series 10GbE Converged Network Adapter (TCP/IP Networking)" },
 167         { PCI_VENDOR_ID_QLOGIC,
 168           PCI_DEVICE_ID_QLOGIC_QLE834X,
 169           PCI_VENDOR_ID_QLOGIC,
 170           0x24e,
 171           "8300 Series Dual Port 10GbE Converged Network Adapter "
 172           "(TCP/IP Networking)" },
 173         { PCI_VENDOR_ID_QLOGIC,
 174           PCI_DEVICE_ID_QLOGIC_QLE834X,
 175           PCI_VENDOR_ID_QLOGIC,
 176           0x243,
 177           "8300 Series Single Port 10GbE Converged Network Adapter "
 178           "(TCP/IP Networking)" },
 179         { PCI_VENDOR_ID_QLOGIC,
 180           PCI_DEVICE_ID_QLOGIC_QLE834X,
 181           PCI_VENDOR_ID_QLOGIC,
 182           0x24a,
 183           "8300 Series Dual Port 10GbE Converged Network Adapter "
 184           "(TCP/IP Networking)" },
 185         { PCI_VENDOR_ID_QLOGIC,
 186           PCI_DEVICE_ID_QLOGIC_QLE834X,
 187           PCI_VENDOR_ID_QLOGIC,
 188           0x246,
 189           "8300 Series Dual Port 10GbE Converged Network Adapter "
 190           "(TCP/IP Networking)" },
 191         { PCI_VENDOR_ID_QLOGIC,
 192           PCI_DEVICE_ID_QLOGIC_QLE834X,
 193           PCI_VENDOR_ID_QLOGIC,
 194           0x252,
 195           "8300 Series Dual Port 10GbE Converged Network Adapter "
 196           "(TCP/IP Networking)" },
 197         { PCI_VENDOR_ID_QLOGIC,
 198           PCI_DEVICE_ID_QLOGIC_QLE834X,
 199           PCI_VENDOR_ID_QLOGIC,
 200           0x26e,
 201           "8300 Series Dual Port 10GbE Converged Network Adapter "
 202           "(TCP/IP Networking)" },
 203         { PCI_VENDOR_ID_QLOGIC,
 204           PCI_DEVICE_ID_QLOGIC_QLE834X,
 205           PCI_VENDOR_ID_QLOGIC,
 206           0x260,
 207           "8300 Series Dual Port 10GbE Converged Network Adapter "
 208           "(TCP/IP Networking)" },
 209         { PCI_VENDOR_ID_QLOGIC,
 210           PCI_DEVICE_ID_QLOGIC_QLE834X,
 211           PCI_VENDOR_ID_QLOGIC,
 212           0x266,
 213           "8300 Series Single Port 10GbE Converged Network Adapter "
 214           "(TCP/IP Networking)" },
 215         { PCI_VENDOR_ID_QLOGIC,
 216           PCI_DEVICE_ID_QLOGIC_QLE834X,
 217           PCI_VENDOR_ID_QLOGIC,
 218           0x269,
 219           "8300 Series Dual Port 10GbE Converged Network Adapter "
 220           "(TCP/IP Networking)" },
 221         { PCI_VENDOR_ID_QLOGIC,
 222           PCI_DEVICE_ID_QLOGIC_QLE834X,
 223           PCI_VENDOR_ID_QLOGIC,
 224           0x271,
 225           "8300 Series Dual Port 10GbE Converged Network Adapter "
 226           "(TCP/IP Networking)" },
 227         { PCI_VENDOR_ID_QLOGIC,
 228           PCI_DEVICE_ID_QLOGIC_QLE834X,
 229           0x0, 0x0, "8300 Series 1/10GbE Controller" },
 230         { PCI_VENDOR_ID_QLOGIC,
 231           PCI_DEVICE_ID_QLOGIC_QLE824X,
 232           PCI_VENDOR_ID_QLOGIC,
 233           0x203,
 234           "8200 Series Single Port 10GbE Converged Network Adapter"
 235           "(TCP/IP Networking)" },
 236         { PCI_VENDOR_ID_QLOGIC,
 237           PCI_DEVICE_ID_QLOGIC_QLE824X,
 238           PCI_VENDOR_ID_QLOGIC,
 239           0x207,
 240           "8200 Series Dual Port 10GbE Converged Network Adapter"
 241           "(TCP/IP Networking)" },
 242         { PCI_VENDOR_ID_QLOGIC,
 243           PCI_DEVICE_ID_QLOGIC_QLE824X,
 244           PCI_VENDOR_ID_QLOGIC,
 245           0x20b,
 246           "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter" },
 247         { PCI_VENDOR_ID_QLOGIC,
 248           PCI_DEVICE_ID_QLOGIC_QLE824X,
 249           PCI_VENDOR_ID_QLOGIC,
 250           0x20c,
 251           "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter" },
 252         { PCI_VENDOR_ID_QLOGIC,
 253           PCI_DEVICE_ID_QLOGIC_QLE824X,
 254           PCI_VENDOR_ID_QLOGIC,
 255           0x20f,
 256           "3200 Series Single Port 10Gb Intelligent Ethernet Adapter" },
 257         { PCI_VENDOR_ID_QLOGIC,
 258           PCI_DEVICE_ID_QLOGIC_QLE824X,
 259           0x103c, 0x3733,
 260           "NC523SFP 10Gb 2-port Server Adapter" },
 261         { PCI_VENDOR_ID_QLOGIC,
 262           PCI_DEVICE_ID_QLOGIC_QLE824X,
 263           0x103c, 0x3346,
 264           "CN1000Q Dual Port Converged Network Adapter" },
 265         { PCI_VENDOR_ID_QLOGIC,
 266           PCI_DEVICE_ID_QLOGIC_QLE824X,
 267           PCI_VENDOR_ID_QLOGIC,
 268           0x210,
 269           "QME8242-k 10GbE Dual Port Mezzanine Card" },
 270         { PCI_VENDOR_ID_QLOGIC,
 271           PCI_DEVICE_ID_QLOGIC_QLE824X,
 272           0x0, 0x0, "cLOM8214 1/10GbE Controller" },
 273 };
 274
 275 #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)
 276
 277 static const
 278 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
 279
 280 int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
 281 {
 282         int size = sizeof(struct qlcnic_host_sds_ring) * count;
 283
 284         recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
 285
 286         return recv_ctx->sds_rings == NULL;
 287 }
 288
 289 void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
 290 {
 291         if (recv_ctx->sds_rings != NULL)
 292                 kfree(recv_ctx->sds_rings);
 293
 294         recv_ctx->sds_rings = NULL;
 295 }
 296
 297 int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
 298 {
 299         struct net_device *netdev = adapter->netdev;
 300         struct pci_dev *pdev = adapter->pdev;
 301         u8 mac_addr[ETH_ALEN];
 302         int ret;
 303
 304         ret = qlcnic_get_mac_address(adapter, mac_addr,
 305                                      adapter->ahw->pci_func);
 306         if (ret)
 307                 return ret;
 308
 309         memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
 310         memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
 311
 312         /* set station address */
 313
 314         if (!is_valid_ether_addr(netdev->dev_addr))
 315                 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
 316                                         netdev->dev_addr);
 317
 318         return 0;
 319 }
 320
 321 static void qlcnic_delete_adapter_mac(struct qlcnic_adapter *adapter)
 322 {
 323         struct qlcnic_mac_vlan_list *cur;
 324         struct list_head *head;
 325
 326         list_for_each(head, &adapter->mac_list) {
 327                 cur = list_entry(head, struct qlcnic_mac_vlan_list, list);
 328                 if (ether_addr_equal_unaligned(adapter->mac_addr, cur->mac_addr)) {
 329                         qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
 330                                                   0, QLCNIC_MAC_DEL);
 331                         list_del(&cur->list);
 332                         kfree(cur);
 333                         return;
 334                 }
 335         }
 336 }
 337
 338 static int qlcnic_set_mac(struct net_device *netdev, void *p)
 339 {
 340         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 341         struct sockaddr *addr = p;
 342
 343         if (qlcnic_sriov_vf_check(adapter))
 344                 return -EINVAL;
 345
 346         if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
 347                 return -EOPNOTSUPP;
 348
 349         if (!is_valid_ether_addr(addr->sa_data))
 350                 return -EINVAL;
 351
 352         if (ether_addr_equal_unaligned(adapter->mac_addr, addr->sa_data))
 353                 return 0;
 354
 355         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 356                 netif_device_detach(netdev);
 357                 qlcnic_napi_disable(adapter);
 358         }
 359
 360         qlcnic_delete_adapter_mac(adapter);
 361         memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
 362         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 363         qlcnic_set_multi(adapter->netdev);
 364
 365         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 366                 netif_device_attach(netdev);
 367                 qlcnic_napi_enable(adapter);
 368         }
 369         return 0;
 370 }
 371
 372 static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
 373                         struct net_device *netdev, const unsigned char *addr)
 374 {
 375         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 376         int err = -EOPNOTSUPP;
 377
 378         if (!adapter->fdb_mac_learn)
 379                 return ndo_dflt_fdb_del(ndm, tb, netdev, addr);
 380
 381         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 382                 if (is_unicast_ether_addr(addr)) {
 383                         err = dev_uc_del(netdev, addr);
 384                         if (!err)
 385                                 err = qlcnic_nic_del_mac(adapter, addr);
 386                 } else if (is_multicast_ether_addr(addr)) {
 387                         err = dev_mc_del(netdev, addr);
 388                 } else {
 389                         err =  -EINVAL;
 390                 }
 391         }
 392         return err;
 393 }
 394
 395 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 396                         struct net_device *netdev,
 397                         const unsigned char *addr, u16 flags)
 398 {
 399         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 400         int err = 0;
 401
 402         if (!adapter->fdb_mac_learn)
 403                 return ndo_dflt_fdb_add(ndm, tb, netdev, addr, flags);
 404
 405         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 406                 pr_info("%s: FDB e-switch is not enabled\n", __func__);
 407                 return -EOPNOTSUPP;
 408         }
 409
 410         if (ether_addr_equal(addr, adapter->mac_addr))
 411                 return err;
 412
 413         if (is_unicast_ether_addr(addr)) {
 414                 if (netdev_uc_count(netdev) < adapter->ahw->max_uc_count)
 415                         err = dev_uc_add_excl(netdev, addr);
 416                 else
 417                         err = -ENOMEM;
 418         } else if (is_multicast_ether_addr(addr)) {
 419                 err = dev_mc_add_excl(netdev, addr);
 420         } else {
 421                 err = -EINVAL;
 422         }
 423
 424         return err;
 425 }
 426
 427 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
 428                         struct net_device *netdev, int idx)
 429 {
 430         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 431
 432         if (!adapter->fdb_mac_learn)
 433                 return ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
 434
 435         if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
 436                 idx = ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
 437
 438         return idx;
 439 }
 440
 441 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
 442 {
 443         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
 444                 usleep_range(10000, 11000);
 445
 446         if (!adapter->fw_work.work.func)
 447                 return;
 448
 449         cancel_delayed_work_sync(&adapter->fw_work);
 450 }
 451
 452 static int qlcnic_get_phys_port_id(struct net_device *netdev,
 453                                    struct netdev_phys_port_id *ppid)
 454 {
 455         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 456         struct qlcnic_hardware_context *ahw = adapter->ahw;
 457
 458         if (!(adapter->flags & QLCNIC_HAS_PHYS_PORT_ID))
 459                 return -EOPNOTSUPP;
 460
 461         ppid->id_len = sizeof(ahw->phys_port_id);
 462         memcpy(ppid->id, ahw->phys_port_id, ppid->id_len);
 463
 464         return 0;
 465 }
 466
 467 #ifdef CONFIG_QLCNIC_VXLAN
 468 static void qlcnic_add_vxlan_port(struct net_device *netdev,
 469                                   sa_family_t sa_family, __be16 port)
 470 {
 471         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 472         struct qlcnic_hardware_context *ahw = adapter->ahw;
 473
 474         /* Adapter supports only one VXLAN port. Use very first port
 475          * for enabling offload
 476          */
 477         if (!qlcnic_encap_rx_offload(adapter) || ahw->vxlan_port)
 478                 return;
 479
 480         ahw->vxlan_port = ntohs(port);
 481         adapter->flags |= QLCNIC_ADD_VXLAN_PORT;
 482 }
 483
 484 static void qlcnic_del_vxlan_port(struct net_device *netdev,
 485                                   sa_family_t sa_family, __be16 port)
 486 {
 487         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 488         struct qlcnic_hardware_context *ahw = adapter->ahw;
 489
 490         if (!qlcnic_encap_rx_offload(adapter) || !ahw->vxlan_port ||
 491             (ahw->vxlan_port != ntohs(port)))
 492                 return;
 493
 494         adapter->flags |= QLCNIC_DEL_VXLAN_PORT;
 495 }
 496 #endif
 497
 498 static const struct net_device_ops qlcnic_netdev_ops = {
 499         .ndo_open          = qlcnic_open,
 500         .ndo_stop          = qlcnic_close,
 501         .ndo_start_xmit    = qlcnic_xmit_frame,
 502         .ndo_get_stats     = qlcnic_get_stats,
 503         .ndo_validate_addr = eth_validate_addr,
 504         .ndo_set_rx_mode   = qlcnic_set_multi,
 505         .ndo_set_mac_address    = qlcnic_set_mac,
 506         .ndo_change_mtu    = qlcnic_change_mtu,
 507         .ndo_fix_features  = qlcnic_fix_features,
 508         .ndo_set_features  = qlcnic_set_features,
 509         .ndo_tx_timeout    = qlcnic_tx_timeout,
 510         .ndo_vlan_rx_add_vid    = qlcnic_vlan_rx_add,
 511         .ndo_vlan_rx_kill_vid   = qlcnic_vlan_rx_del,
 512         .ndo_fdb_add            = qlcnic_fdb_add,
 513         .ndo_fdb_del            = qlcnic_fdb_del,
 514         .ndo_fdb_dump           = qlcnic_fdb_dump,
 515         .ndo_get_phys_port_id   = qlcnic_get_phys_port_id,
 516 #ifdef CONFIG_QLCNIC_VXLAN
 517         .ndo_add_vxlan_port     = qlcnic_add_vxlan_port,
 518         .ndo_del_vxlan_port     = qlcnic_del_vxlan_port,
 519 #endif
 520 #ifdef CONFIG_NET_POLL_CONTROLLER
 521         .ndo_poll_controller = qlcnic_poll_controller,
 522 #endif
 523 #ifdef CONFIG_QLCNIC_SRIOV
 524         .ndo_set_vf_mac         = qlcnic_sriov_set_vf_mac,
 525         .ndo_set_vf_tx_rate     = qlcnic_sriov_set_vf_tx_rate,
 526         .ndo_get_vf_config      = qlcnic_sriov_get_vf_config,
 527         .ndo_set_vf_vlan        = qlcnic_sriov_set_vf_vlan,
 528         .ndo_set_vf_spoofchk    = qlcnic_sriov_set_vf_spoofchk,
 529 #endif
 530 };
 531
 532 static const struct net_device_ops qlcnic_netdev_failed_ops = {
 533         .ndo_open          = qlcnic_open,
 534 };
 535
 536 static struct qlcnic_nic_template qlcnic_ops = {
 537         .config_bridged_mode    = qlcnic_config_bridged_mode,
 538         .config_led             = qlcnic_82xx_config_led,
 539         .start_firmware         = qlcnic_82xx_start_firmware,
 540         .request_reset          = qlcnic_82xx_dev_request_reset,
 541         .cancel_idc_work        = qlcnic_82xx_cancel_idc_work,
 542         .napi_add               = qlcnic_82xx_napi_add,
 543         .napi_del               = qlcnic_82xx_napi_del,
 544         .config_ipaddr          = qlcnic_82xx_config_ipaddr,
 545         .shutdown               = qlcnic_82xx_shutdown,
 546         .resume                 = qlcnic_82xx_resume,
 547         .clear_legacy_intr      = qlcnic_82xx_clear_legacy_intr,
 548 };
 549
 550 struct qlcnic_nic_template qlcnic_vf_ops = {
 551         .config_bridged_mode    = qlcnicvf_config_bridged_mode,
 552         .config_led             = qlcnicvf_config_led,
 553         .start_firmware         = qlcnicvf_start_firmware
 554 };
 555
 556 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
 557         .read_crb                       = qlcnic_82xx_read_crb,
 558         .write_crb                      = qlcnic_82xx_write_crb,
 559         .read_reg                       = qlcnic_82xx_hw_read_wx_2M,
 560         .write_reg                      = qlcnic_82xx_hw_write_wx_2M,
 561         .get_mac_address                = qlcnic_82xx_get_mac_address,
 562         .setup_intr                     = qlcnic_82xx_setup_intr,
 563         .alloc_mbx_args                 = qlcnic_82xx_alloc_mbx_args,
 564         .mbx_cmd                        = qlcnic_82xx_issue_cmd,
 565         .get_func_no                    = qlcnic_82xx_get_func_no,
 566         .api_lock                       = qlcnic_82xx_api_lock,
 567         .api_unlock                     = qlcnic_82xx_api_unlock,
 568         .add_sysfs                      = qlcnic_82xx_add_sysfs,
 569         .remove_sysfs                   = qlcnic_82xx_remove_sysfs,
 570         .process_lb_rcv_ring_diag       = qlcnic_82xx_process_rcv_ring_diag,
 571         .create_rx_ctx                  = qlcnic_82xx_fw_cmd_create_rx_ctx,
 572         .create_tx_ctx                  = qlcnic_82xx_fw_cmd_create_tx_ctx,
 573         .del_rx_ctx                     = qlcnic_82xx_fw_cmd_del_rx_ctx,
 574         .del_tx_ctx                     = qlcnic_82xx_fw_cmd_del_tx_ctx,
 575         .setup_link_event               = qlcnic_82xx_linkevent_request,
 576         .get_nic_info                   = qlcnic_82xx_get_nic_info,
 577         .get_pci_info                   = qlcnic_82xx_get_pci_info,
 578         .set_nic_info                   = qlcnic_82xx_set_nic_info,
 579         .change_macvlan                 = qlcnic_82xx_sre_macaddr_change,
 580         .napi_enable                    = qlcnic_82xx_napi_enable,
 581         .napi_disable                   = qlcnic_82xx_napi_disable,
 582         .config_intr_coal               = qlcnic_82xx_config_intr_coalesce,
 583         .config_rss                     = qlcnic_82xx_config_rss,
 584         .config_hw_lro                  = qlcnic_82xx_config_hw_lro,
 585         .config_loopback                = qlcnic_82xx_set_lb_mode,
 586         .clear_loopback                 = qlcnic_82xx_clear_lb_mode,
 587         .config_promisc_mode            = qlcnic_82xx_nic_set_promisc,
 588         .change_l2_filter               = qlcnic_82xx_change_filter,
 589         .get_board_info                 = qlcnic_82xx_get_board_info,
 590         .set_mac_filter_count           = qlcnic_82xx_set_mac_filter_count,
 591         .free_mac_list                  = qlcnic_82xx_free_mac_list,
 592         .read_phys_port_id              = qlcnic_82xx_read_phys_port_id,
 593         .io_error_detected              = qlcnic_82xx_io_error_detected,
 594         .io_slot_reset                  = qlcnic_82xx_io_slot_reset,
 595         .io_resume                      = qlcnic_82xx_io_resume,
 596         .get_beacon_state               = qlcnic_82xx_get_beacon_state,
 597         .enable_sds_intr                = qlcnic_82xx_enable_sds_intr,
 598         .disable_sds_intr               = qlcnic_82xx_disable_sds_intr,
 599         .enable_tx_intr                 = qlcnic_82xx_enable_tx_intr,
 600         .disable_tx_intr                = qlcnic_82xx_disable_tx_intr,
 601         .get_saved_state                = qlcnic_82xx_get_saved_state,
 602         .set_saved_state                = qlcnic_82xx_set_saved_state,
 603         .cache_tmpl_hdr_values          = qlcnic_82xx_cache_tmpl_hdr_values,
 604         .get_cap_size                   = qlcnic_82xx_get_cap_size,
 605         .set_sys_info                   = qlcnic_82xx_set_sys_info,
 606         .store_cap_mask                 = qlcnic_82xx_store_cap_mask,
 607 };
 608
 609 static int qlcnic_check_multi_tx_capability(struct qlcnic_adapter *adapter)
 610 {
 611         struct qlcnic_hardware_context *ahw = adapter->ahw;
 612
 613         if (qlcnic_82xx_check(adapter) &&
 614             (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_MULTI_TX)) {
 615                 test_and_set_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
 616                 return 0;
 617         } else {
 618                 return 1;
 619         }
 620 }
 621
 622 static int qlcnic_max_rings(struct qlcnic_adapter *adapter, u8 ring_cnt,
 623                             int queue_type)
 624 {
 625         int num_rings, max_rings = QLCNIC_MAX_SDS_RINGS;
 626
 627         if (queue_type == QLCNIC_RX_QUEUE)
 628                 max_rings = adapter->max_sds_rings;
 629         else if (queue_type == QLCNIC_TX_QUEUE)
 630                 max_rings = adapter->max_tx_rings;
 631
 632         num_rings = rounddown_pow_of_two(min_t(int, num_online_cpus(),
 633                                               max_rings));
 634
 635         if (ring_cnt > num_rings)
 636                 return num_rings;
 637         else
 638                 return ring_cnt;
 639 }
 640
 641 void qlcnic_set_tx_ring_count(struct qlcnic_adapter *adapter, u8 tx_cnt)
 642 {
 643         /* 83xx adapter does not have max_tx_rings intialized in probe */
 644         if (adapter->max_tx_rings)
 645                 adapter->drv_tx_rings = qlcnic_max_rings(adapter, tx_cnt,
 646                                                          QLCNIC_TX_QUEUE);
 647         else
 648                 adapter->drv_tx_rings = tx_cnt;
 649 }
 650
 651 void qlcnic_set_sds_ring_count(struct qlcnic_adapter *adapter, u8 rx_cnt)
 652 {
 653         /* 83xx adapter does not have max_sds_rings intialized in probe */
 654         if (adapter->max_sds_rings)
 655                 adapter->drv_sds_rings = qlcnic_max_rings(adapter, rx_cnt,
 656                                                           QLCNIC_RX_QUEUE);
 657         else
 658                 adapter->drv_sds_rings = rx_cnt;
 659 }
 660
 661 int qlcnic_setup_tss_rss_intr(struct qlcnic_adapter *adapter)
 662 {
 663         struct pci_dev *pdev = adapter->pdev;
 664         int num_msix = 0, err = 0, vector;
 665
 666         adapter->flags &= ~QLCNIC_TSS_RSS;
 667
 668         if (adapter->drv_tss_rings > 0)
 669                 num_msix += adapter->drv_tss_rings;
 670         else
 671                 num_msix += adapter->drv_tx_rings;
 672
 673         if (adapter->drv_rss_rings  > 0)
 674                 num_msix += adapter->drv_rss_rings;
 675         else
 676                 num_msix += adapter->drv_sds_rings;
 677
 678         if (qlcnic_83xx_check(adapter))
 679                 num_msix += 1;
 680
 681         if (!adapter->msix_entries) {
 682                 adapter->msix_entries = kcalloc(num_msix,
 683                                                 sizeof(struct msix_entry),
 684                                                 GFP_KERNEL);
 685                 if (!adapter->msix_entries)
 686                         return -ENOMEM;
 687         }
 688
 689 restore:
 690         for (vector = 0; vector < num_msix; vector++)
 691                 adapter->msix_entries[vector].entry = vector;
 692
 693         err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
 694         if (err == 0) {
 695                 adapter->ahw->num_msix = num_msix;
 696                 if (adapter->drv_tss_rings > 0)
 697                         adapter->drv_tx_rings = adapter->drv_tss_rings;
 698
 699                 if (adapter->drv_rss_rings > 0)
 700                         adapter->drv_sds_rings = adapter->drv_rss_rings;
 701         } else {
 702                 netdev_info(adapter->netdev,
 703                             "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
 704                             num_msix, err);
 705
 706                 num_msix = adapter->drv_tx_rings + adapter->drv_sds_rings;
 707
 708                 /* Set rings to 0 so we can restore original TSS/RSS count */
 709                 adapter->drv_tss_rings = 0;
 710                 adapter->drv_rss_rings = 0;
 711
 712                 if (qlcnic_83xx_check(adapter))
 713                         num_msix += 1;
 714
 715                 netdev_info(adapter->netdev,
 716                             "Restoring %d Tx, %d SDS rings for total %d vectors.\n",
 717                             adapter->drv_tx_rings, adapter->drv_sds_rings,
 718                             num_msix);
 719                 goto restore;
 720
 721                 err = -EIO;
 722         }
 723
 724         return err;
 725 }
 726
 727 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 728 {
 729         struct pci_dev *pdev = adapter->pdev;
 730         int err, vector;
 731
 732         if (!adapter->msix_entries) {
 733                 adapter->msix_entries = kcalloc(num_msix,
 734                                                 sizeof(struct msix_entry),
 735                                                 GFP_KERNEL);
 736                 if (!adapter->msix_entries)
 737                         return -ENOMEM;
 738         }
 739
 740         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 741
 742         if (adapter->ahw->msix_supported) {
 743 enable_msix:
 744                 for (vector = 0; vector < num_msix; vector++)
 745                         adapter->msix_entries[vector].entry = vector;
 746
 747                 err = pci_enable_msix_range(pdev,
 748                                             adapter->msix_entries, 1, num_msix);
 749
 750                 if (err == num_msix) {
 751                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 752                         adapter->ahw->num_msix = num_msix;
 753                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 754                         return 0;
 755                 } else if (err > 0) {
 756                         pci_disable_msix(pdev);
 757
 758                         dev_info(&pdev->dev,
 759                                  "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
 760                                  num_msix, err);
 761
 762                         if (qlcnic_82xx_check(adapter)) {
 763                                 num_msix = rounddown_pow_of_two(err);
 764                                 if (err < QLCNIC_82XX_MINIMUM_VECTOR)
 765                                         return -ENOSPC;
 766                         } else {
 767                                 num_msix = rounddown_pow_of_two(err - 1);
 768                                 num_msix += 1;
 769                                 if (err < QLCNIC_83XX_MINIMUM_VECTOR)
 770                                         return -ENOSPC;
 771                         }
 772
 773                         if (qlcnic_82xx_check(adapter) &&
 774                             !qlcnic_check_multi_tx(adapter)) {
 775                                 adapter->drv_sds_rings = num_msix;
 776                                 adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
 777                         } else {
 778                                 /* Distribute vectors equally */
 779                                 adapter->drv_tx_rings = num_msix / 2;
 780                                 adapter->drv_sds_rings = adapter->drv_tx_rings;
 781                         }
 782
 783                         if (num_msix) {
 784                                 dev_info(&pdev->dev,
 785                                          "Trying to allocate %d MSI-X interrupt vectors\n",
 786                                          num_msix);
 787                                 goto enable_msix;
 788                         }
 789                 } else {
 790                         dev_info(&pdev->dev,
 791                                  "Unable to allocate %d MSI-X vectors, err=%d\n",
 792                                  num_msix, err);
 793                         return err;
 794                 }
 795         }
 796
 797         return -EIO;
 798 }
 799
 800 static int qlcnic_82xx_calculate_msix_vector(struct qlcnic_adapter *adapter)
 801 {
 802         int num_msix;
 803
 804         num_msix = adapter->drv_sds_rings;
 805
 806         if (qlcnic_check_multi_tx(adapter))
 807                 num_msix += adapter->drv_tx_rings;
 808         else
 809                 num_msix += QLCNIC_SINGLE_RING;
 810
 811         return num_msix;
 812 }
 813
 814 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
 815 {
 816         int err = 0;
 817         u32 offset, mask_reg;
 818         const struct qlcnic_legacy_intr_set *legacy_intrp;
 819         struct qlcnic_hardware_context *ahw = adapter->ahw;
 820         struct pci_dev *pdev = adapter->pdev;
 821
 822         if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
 823                 adapter->flags |= QLCNIC_MSI_ENABLED;
 824                 offset = msi_tgt_status[adapter->ahw->pci_func];
 825                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
 826                                                             offset);
 827                 dev_info(&pdev->dev, "using msi interrupts\n");
 828                 adapter->msix_entries[0].vector = pdev->irq;
 829                 return err;
 830         }
 831
 832         if (qlcnic_use_msi || qlcnic_use_msi_x)
 833                 return -EOPNOTSUPP;
 834
 835         legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
 836         adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
 837         offset = legacy_intrp->tgt_status_reg;
 838         adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
 839         mask_reg = legacy_intrp->tgt_mask_reg;
 840         adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
 841         adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
 842         adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
 843         dev_info(&pdev->dev, "using legacy interrupts\n");
 844         adapter->msix_entries[0].vector = pdev->irq;
 845         return err;
 846 }
 847
 848 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter)
 849 {
 850         int num_msix, err = 0;
 851
 852         if (adapter->flags & QLCNIC_TSS_RSS) {
 853                 err = qlcnic_setup_tss_rss_intr(adapter);
 854                 if (err < 0)
 855                         return err;
 856                 num_msix = adapter->ahw->num_msix;
 857         } else {
 858                 num_msix = qlcnic_82xx_calculate_msix_vector(adapter);
 859
 860                 err = qlcnic_enable_msix(adapter, num_msix);
 861                 if (err == -ENOMEM)
 862                         return err;
 863
 864                 if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
 865                         qlcnic_disable_multi_tx(adapter);
 866                         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
 867
 868                         err = qlcnic_enable_msi_legacy(adapter);
 869                         if (err)
 870                                 return err;
 871                 }
 872         }
 873
 874         return 0;
 875 }
 876
 877 int qlcnic_82xx_mq_intrpt(struct qlcnic_adapter *adapter, int op_type)
 878 {
 879         struct qlcnic_hardware_context *ahw = adapter->ahw;
 880         int err, i;
 881
 882         if (qlcnic_check_multi_tx(adapter) &&
 883             !ahw->diag_test &&
 884             (adapter->flags & QLCNIC_MSIX_ENABLED)) {
 885                 ahw->intr_tbl = vzalloc(ahw->num_msix *
 886                                         sizeof(struct qlcnic_intrpt_config));
 887                 if (!ahw->intr_tbl)
 888                         return -ENOMEM;
 889
 890                 for (i = 0; i < ahw->num_msix; i++) {
 891                         ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
 892                         ahw->intr_tbl[i].id = i;
 893                         ahw->intr_tbl[i].src = 0;
 894                 }
 895
 896                 err = qlcnic_82xx_config_intrpt(adapter, 1);
 897                 if (err)
 898                         dev_err(&adapter->pdev->dev,
 899                                 "Failed to configure Interrupt for %d vector\n",
 900                                 ahw->num_msix);
 901                 return err;
 902         }
 903
 904         return 0;
 905 }
 906
 907 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 908 {
 909         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 910                 pci_disable_msix(adapter->pdev);
 911         if (adapter->flags & QLCNIC_MSI_ENABLED)
 912                 pci_disable_msi(adapter->pdev);
 913
 914         kfree(adapter->msix_entries);
 915         adapter->msix_entries = NULL;
 916
 917         if (adapter->ahw->intr_tbl) {
 918                 vfree(adapter->ahw->intr_tbl);
 919                 adapter->ahw->intr_tbl = NULL;
 920         }
 921 }
 922
 923 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
 924 {
 925         if (ahw->pci_base0 != NULL)
 926                 iounmap(ahw->pci_base0);
 927 }
 928
 929 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
 930 {
 931         struct qlcnic_hardware_context *ahw = adapter->ahw;
 932         struct qlcnic_pci_info *pci_info;
 933         int ret;
 934
 935         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 936                 switch (ahw->port_type) {
 937                 case QLCNIC_GBE:
 938                         ahw->total_nic_func = QLCNIC_NIU_MAX_GBE_PORTS;
 939                         break;
 940                 case QLCNIC_XGBE:
 941                         ahw->total_nic_func = QLCNIC_NIU_MAX_XG_PORTS;
 942                         break;
 943                 }
 944                 return 0;
 945         }
 946
 947         if (ahw->op_mode == QLCNIC_MGMT_FUNC)
 948                 return 0;
 949
 950         pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
 951         if (!pci_info)
 952                 return -ENOMEM;
 953
 954         ret = qlcnic_get_pci_info(adapter, pci_info);
 955         kfree(pci_info);
 956         return ret;
 957 }
 958
 959 static bool qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter *adapter)
 960 {
 961         bool ret = false;
 962
 963         if (qlcnic_84xx_check(adapter)) {
 964                 ret = true;
 965         } else if (qlcnic_83xx_check(adapter)) {
 966                 if (adapter->ahw->extra_capability[0] &
 967                     QLCNIC_FW_CAPABILITY_2_PER_PORT_ESWITCH_CFG)
 968                         ret = true;
 969                 else
 970                         ret = false;
 971         }
 972
 973         return ret;
 974 }
 975
 976 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 977 {
 978         struct qlcnic_hardware_context *ahw = adapter->ahw;
 979         struct qlcnic_pci_info *pci_info;
 980         int i, id = 0, ret = 0, j = 0;
 981         u16 act_pci_func;
 982         u8 pfn;
 983
 984         pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
 985         if (!pci_info)
 986                 return -ENOMEM;
 987
 988         ret = qlcnic_get_pci_info(adapter, pci_info);
 989         if (ret)
 990                 goto err_pci_info;
 991
 992         act_pci_func = ahw->total_nic_func;
 993
 994         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
 995                                  act_pci_func, GFP_KERNEL);
 996         if (!adapter->npars) {
 997                 ret = -ENOMEM;
 998                 goto err_pci_info;
 999         }
1000
1001         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
1002                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
1003         if (!adapter->eswitch) {
1004                 ret = -ENOMEM;
1005                 goto err_npars;
1006         }
1007
1008         for (i = 0; i < ahw->max_vnic_func; i++) {
1009                 pfn = pci_info[i].id;
1010
1011                 if (pfn >= ahw->max_vnic_func) {
1012                         ret = QL_STATUS_INVALID_PARAM;
1013                         goto err_eswitch;
1014                 }
1015
1016                 if (!pci_info[i].active ||
1017                     (pci_info[i].type != QLCNIC_TYPE_NIC))
1018                         continue;
1019
1020                 if (qlcnic_port_eswitch_cfg_capability(adapter)) {
1021                         if (!qlcnic_83xx_set_port_eswitch_status(adapter, pfn,
1022                                                                  &id))
1023                                 adapter->npars[j].eswitch_status = true;
1024                         else
1025                                 continue;
1026                 } else {
1027                         adapter->npars[j].eswitch_status = true;
1028                 }
1029
1030                 adapter->npars[j].pci_func = pfn;
1031                 adapter->npars[j].active = (u8)pci_info[i].active;
1032                 adapter->npars[j].type = (u8)pci_info[i].type;
1033                 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
1034                 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
1035                 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
1036
1037                 memcpy(&adapter->npars[j].mac, &pci_info[i].mac, ETH_ALEN);
1038                 j++;
1039         }
1040
1041         /* Update eSwitch status for adapters without per port eSwitch
1042          * configuration capability
1043          */
1044         if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
1045                 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
1046                         adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
1047         }
1048
1049         kfree(pci_info);
1050         return 0;
1051
1052 err_eswitch:
1053         kfree(adapter->eswitch);
1054         adapter->eswitch = NULL;
1055 err_npars:
1056         kfree(adapter->npars);
1057         adapter->npars = NULL;
1058 err_pci_info:
1059         kfree(pci_info);
1060
1061         return ret;
1062 }
1063
1064 static int
1065 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
1066 {
1067         u8 id;
1068         int ret;
1069         u32 data = QLCNIC_MGMT_FUNC;
1070         struct qlcnic_hardware_context *ahw = adapter->ahw;
1071
1072         ret = qlcnic_api_lock(adapter);
1073         if (ret)
1074                 goto err_lock;
1075
1076         id = ahw->pci_func;
1077         data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1078         data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
1079                QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
1080         QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
1081         qlcnic_api_unlock(adapter);
1082 err_lock:
1083         return ret;
1084 }
1085
1086 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
1087                             const struct pci_device_id *ent)
1088 {
1089         u32 op_mode, priv_level;
1090
1091         /* Determine FW API version */
1092         adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
1093                                                            QLCNIC_FW_API);
1094
1095         /* Find PCI function number */
1096         qlcnic_get_func_no(adapter);
1097
1098         /* Determine function privilege level */
1099         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1100         if (op_mode == QLC_DEV_DRV_DEFAULT)
1101                 priv_level = QLCNIC_MGMT_FUNC;
1102         else
1103                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1104
1105         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
1106                 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
1107                 dev_info(&adapter->pdev->dev,
1108                         "HAL Version: %d Non Privileged function\n",
1109                          adapter->ahw->fw_hal_version);
1110                 adapter->nic_ops = &qlcnic_vf_ops;
1111         } else
1112                 adapter->nic_ops = &qlcnic_ops;
1113 }
1114
1115 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
1116 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
1117 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
1118 {
1119         switch (dev_id) {
1120         case PCI_DEVICE_ID_QLOGIC_QLE824X:
1121                 *bar = QLCNIC_82XX_BAR0_LENGTH;
1122                 break;
1123         case PCI_DEVICE_ID_QLOGIC_QLE834X:
1124         case PCI_DEVICE_ID_QLOGIC_QLE844X:
1125         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
1126         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
1127                 *bar = QLCNIC_83XX_BAR0_LENGTH;
1128                 break;
1129         default:
1130                 *bar = 0;
1131         }
1132 }
1133
1134 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
1135                                 struct qlcnic_hardware_context *ahw)
1136 {
1137         u32 offset;
1138         void __iomem *mem_ptr0 = NULL;
1139         unsigned long mem_len, pci_len0 = 0, bar0_len;
1140
1141         /* remap phys address */
1142         mem_len = pci_resource_len(pdev, 0);
1143
1144         qlcnic_get_bar_length(pdev->device, &bar0_len);
1145         if (mem_len >= bar0_len) {
1146
1147                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
1148                 if (mem_ptr0 == NULL) {
1149                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
1150                         return -EIO;
1151                 }
1152                 pci_len0 = mem_len;
1153         } else {
1154                 return -EIO;
1155         }
1156
1157         dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
1158
1159         ahw->pci_base0 = mem_ptr0;
1160         ahw->pci_len0 = pci_len0;
1161         offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
1162         qlcnic_get_ioaddr(ahw, offset);
1163
1164         return 0;
1165 }
1166
1167 static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
1168                                          int index)
1169 {
1170         struct pci_dev *pdev = adapter->pdev;
1171         unsigned short subsystem_vendor;
1172         bool ret = true;
1173
1174         subsystem_vendor = pdev->subsystem_vendor;
1175
1176         if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
1177             pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1178                 if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
1179                     qlcnic_boards[index].sub_device == pdev->subsystem_device)
1180                         ret = true;
1181                 else
1182                         ret = false;
1183         }
1184
1185         return ret;
1186 }
1187
1188 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
1189 {
1190         struct pci_dev *pdev = adapter->pdev;
1191         int i, found = 0;
1192
1193         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1194                 if (qlcnic_boards[i].vendor == pdev->vendor &&
1195                     qlcnic_boards[i].device == pdev->device &&
1196                     qlcnic_validate_subsystem_id(adapter, i)) {
1197                         found = 1;
1198                         break;
1199                 }
1200         }
1201
1202         if (!found)
1203                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
1204         else
1205                 sprintf(name, "%pM: %s" , adapter->mac_addr,
1206                         qlcnic_boards[i].short_name);
1207 }
1208
1209 static void
1210 qlcnic_check_options(struct qlcnic_adapter *adapter)
1211 {
1212         int err;
1213         u32 fw_major, fw_minor, fw_build, prev_fw_version;
1214         struct pci_dev *pdev = adapter->pdev;
1215         struct qlcnic_hardware_context *ahw = adapter->ahw;
1216         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
1217
1218         prev_fw_version = adapter->fw_version;
1219
1220         fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
1221         fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
1222         fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
1223
1224         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
1225
1226         err = qlcnic_get_board_info(adapter);
1227         if (err) {
1228                 dev_err(&pdev->dev, "Error getting board config info.\n");
1229                 return;
1230         }
1231         if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
1232                 if (fw_dump->tmpl_hdr == NULL ||
1233                                 adapter->fw_version > prev_fw_version) {
1234                         if (fw_dump->tmpl_hdr)
1235                                 vfree(fw_dump->tmpl_hdr);
1236                         if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1237                                 dev_info(&pdev->dev,
1238                                         "Supports FW dump capability\n");
1239                 }
1240         }
1241
1242         dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
1243                  QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
1244
1245         if (adapter->ahw->port_type == QLCNIC_XGBE) {
1246                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1247                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
1248                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
1249                 } else {
1250                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
1251                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
1252                 }
1253
1254                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1255                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1256
1257         } else if (adapter->ahw->port_type == QLCNIC_GBE) {
1258                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
1259                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1260                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1261                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
1262         }
1263
1264         adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
1265
1266         adapter->num_txd = MAX_CMD_DESCRIPTORS;
1267
1268         adapter->max_rds_rings = MAX_RDS_RINGS;
1269 }
1270
1271 static int
1272 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
1273 {
1274         struct qlcnic_info nic_info;
1275         int err = 0;
1276
1277         memset(&nic_info, 0, sizeof(struct qlcnic_info));
1278         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
1279         if (err)
1280                 return err;
1281
1282         adapter->ahw->physical_port = (u8)nic_info.phys_port;
1283         adapter->ahw->switch_mode = nic_info.switch_mode;
1284         adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
1285         adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
1286         adapter->ahw->capabilities = nic_info.capabilities;
1287
1288         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1289                 u32 temp;
1290                 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
1291                 if (err == -EIO)
1292                         return err;
1293                 adapter->ahw->extra_capability[0] = temp;
1294         } else {
1295                 adapter->ahw->extra_capability[0] = 0;
1296         }
1297
1298         adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1299         adapter->ahw->max_mtu = nic_info.max_mtu;
1300
1301         if (adapter->ahw->capabilities & BIT_6) {
1302                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1303                 adapter->ahw->nic_mode = QLCNIC_VNIC_MODE;
1304                 adapter->max_tx_rings = QLCNIC_MAX_HW_VNIC_TX_RINGS;
1305                 adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
1306
1307                 dev_info(&adapter->pdev->dev, "vNIC mode enabled.\n");
1308         } else {
1309                 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1310                 adapter->max_tx_rings = QLCNIC_MAX_HW_TX_RINGS;
1311                 adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
1312                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1313         }
1314
1315         return err;
1316 }
1317
1318 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1319                             struct qlcnic_esw_func_cfg *esw_cfg)
1320 {
1321         if (esw_cfg->discard_tagged)
1322                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1323         else
1324                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1325
1326         if (esw_cfg->vlan_id) {
1327                 adapter->rx_pvid = esw_cfg->vlan_id;
1328                 adapter->tx_pvid = esw_cfg->vlan_id;
1329         } else {
1330                 adapter->rx_pvid = 0;
1331                 adapter->tx_pvid = 0;
1332         }
1333 }
1334
1335 static int
1336 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1337 {
1338         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1339         int err;
1340
1341         if (qlcnic_sriov_vf_check(adapter)) {
1342                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1343                 if (err) {
1344                         netdev_err(netdev,
1345                                    "Cannot add VLAN filter for VLAN id %d, err=%d",
1346                                    vid, err);
1347                         return err;
1348                 }
1349         }
1350
1351         set_bit(vid, adapter->vlans);
1352         return 0;
1353 }
1354
1355 static int
1356 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1357 {
1358         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1359         int err;
1360
1361         if (qlcnic_sriov_vf_check(adapter)) {
1362                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1363                 if (err) {
1364                         netdev_err(netdev,
1365                                    "Cannot delete VLAN filter for VLAN id %d, err=%d",
1366                                    vid, err);
1367                         return err;
1368                 }
1369         }
1370
1371         qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1372         clear_bit(vid, adapter->vlans);
1373         return 0;
1374 }
1375
1376 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1377                                       struct qlcnic_esw_func_cfg *esw_cfg)
1378 {
1379         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1380                                 QLCNIC_PROMISC_DISABLED);
1381
1382         if (esw_cfg->mac_anti_spoof)
1383                 adapter->flags |= QLCNIC_MACSPOOF;
1384
1385         if (!esw_cfg->mac_override)
1386                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1387
1388         if (!esw_cfg->promisc_mode)
1389                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1390 }
1391
1392 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1393 {
1394         struct qlcnic_esw_func_cfg esw_cfg;
1395
1396         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1397                 return 0;
1398
1399         esw_cfg.pci_func = adapter->ahw->pci_func;
1400         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1401                         return -EIO;
1402         qlcnic_set_vlan_config(adapter, &esw_cfg);
1403         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1404         qlcnic_set_netdev_features(adapter, &esw_cfg);
1405
1406         return 0;
1407 }
1408
1409 void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1410                                 struct qlcnic_esw_func_cfg *esw_cfg)
1411 {
1412         struct net_device *netdev = adapter->netdev;
1413
1414         if (qlcnic_83xx_check(adapter))
1415                 return;
1416
1417         adapter->offload_flags = esw_cfg->offload_flags;
1418         adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1419         netdev_update_features(netdev);
1420         adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1421 }
1422
1423 static int
1424 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1425 {
1426         u32 op_mode, priv_level;
1427         int err = 0;
1428
1429         err = qlcnic_initialize_nic(adapter);
1430         if (err)
1431                 return err;
1432
1433         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1434                 return 0;
1435
1436         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1437         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1438
1439         if (op_mode == QLC_DEV_DRV_DEFAULT)
1440                 priv_level = QLCNIC_MGMT_FUNC;
1441         else
1442                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1443
1444         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1445                 if (priv_level == QLCNIC_MGMT_FUNC) {
1446                         adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1447                         err = qlcnic_init_pci_info(adapter);
1448                         if (err)
1449                                 return err;
1450                         /* Set privilege level for other functions */
1451                         qlcnic_set_function_modes(adapter);
1452                         dev_info(&adapter->pdev->dev,
1453                                 "HAL Version: %d, Management function\n",
1454                                  adapter->ahw->fw_hal_version);
1455                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1456                         adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1457                         dev_info(&adapter->pdev->dev,
1458                                 "HAL Version: %d, Privileged function\n",
1459                                  adapter->ahw->fw_hal_version);
1460                 }
1461         } else {
1462                 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1463         }
1464
1465         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1466
1467         return err;
1468 }
1469
1470 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1471 {
1472         struct qlcnic_esw_func_cfg esw_cfg;
1473         struct qlcnic_npar_info *npar;
1474         u8 i;
1475
1476         if (adapter->need_fw_reset)
1477                 return 0;
1478
1479         for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1480                 if (!adapter->npars[i].eswitch_status)
1481                         continue;
1482
1483                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1484                 esw_cfg.pci_func = adapter->npars[i].pci_func;
1485                 esw_cfg.mac_override = BIT_0;
1486                 esw_cfg.promisc_mode = BIT_0;
1487                 if (qlcnic_82xx_check(adapter)) {
1488                         esw_cfg.offload_flags = BIT_0;
1489                         if (QLCNIC_IS_TSO_CAPABLE(adapter))
1490                                 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1491                 }
1492                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1493                         return -EIO;
1494                 npar = &adapter->npars[i];
1495                 npar->pvid = esw_cfg.vlan_id;
1496                 npar->mac_override = esw_cfg.mac_override;
1497                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1498                 npar->discard_tagged = esw_cfg.discard_tagged;
1499                 npar->promisc_mode = esw_cfg.promisc_mode;
1500                 npar->offload_flags = esw_cfg.offload_flags;
1501         }
1502
1503         return 0;
1504 }
1505
1506
1507 static int
1508 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1509                         struct qlcnic_npar_info *npar, int pci_func)
1510 {
1511         struct qlcnic_esw_func_cfg esw_cfg;
1512         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1513         esw_cfg.pci_func = pci_func;
1514         esw_cfg.vlan_id = npar->pvid;
1515         esw_cfg.mac_override = npar->mac_override;
1516         esw_cfg.discard_tagged = npar->discard_tagged;
1517         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1518         esw_cfg.offload_flags = npar->offload_flags;
1519         esw_cfg.promisc_mode = npar->promisc_mode;
1520         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1521                 return -EIO;
1522
1523         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1524         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1525                 return -EIO;
1526
1527         return 0;
1528 }
1529
1530 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1531 {
1532         int i, err;
1533         struct qlcnic_npar_info *npar;
1534         struct qlcnic_info nic_info;
1535         u8 pci_func;
1536
1537         if (qlcnic_82xx_check(adapter))
1538                 if (!adapter->need_fw_reset)
1539                         return 0;
1540
1541         /* Set the NPAR config data after FW reset */
1542         for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1543                 npar = &adapter->npars[i];
1544                 pci_func = npar->pci_func;
1545                 if (!adapter->npars[i].eswitch_status)
1546                         continue;
1547
1548                 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1549                 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1550                 if (err)
1551                         return err;
1552                 nic_info.min_tx_bw = npar->min_bw;
1553                 nic_info.max_tx_bw = npar->max_bw;
1554                 err = qlcnic_set_nic_info(adapter, &nic_info);
1555                 if (err)
1556                         return err;
1557
1558                 if (npar->enable_pm) {
1559                         err = qlcnic_config_port_mirroring(adapter,
1560                                                            npar->dest_npar, 1,
1561                                                            pci_func);
1562                         if (err)
1563                                 return err;
1564                 }
1565                 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1566                 if (err)
1567                         return err;
1568         }
1569         return 0;
1570 }
1571
1572 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1573 {
1574         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1575         u32 npar_state;
1576
1577         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1578                 return 0;
1579
1580         npar_state = QLC_SHARED_REG_RD32(adapter,
1581                                          QLCNIC_CRB_DEV_NPAR_STATE);
1582         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1583                 msleep(1000);
1584                 npar_state = QLC_SHARED_REG_RD32(adapter,
1585                                                  QLCNIC_CRB_DEV_NPAR_STATE);
1586         }
1587         if (!npar_opt_timeo) {
1588                 dev_err(&adapter->pdev->dev,
1589                         "Waiting for NPAR state to operational timeout\n");
1590                 return -EIO;
1591         }
1592         return 0;
1593 }
1594
1595 static int
1596 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1597 {
1598         int err;
1599
1600         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1601             adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1602                 return 0;
1603
1604         err = qlcnic_set_default_offload_settings(adapter);
1605         if (err)
1606                 return err;
1607
1608         err = qlcnic_reset_npar_config(adapter);
1609         if (err)
1610                 return err;
1611
1612         qlcnic_dev_set_npar_ready(adapter);
1613
1614         return err;
1615 }
1616
1617 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1618 {
1619         int err;
1620
1621         err = qlcnic_can_start_firmware(adapter);
1622         if (err < 0)
1623                 return err;
1624         else if (!err)
1625                 goto check_fw_status;
1626
1627         if (qlcnic_load_fw_file)
1628                 qlcnic_request_firmware(adapter);
1629         else {
1630                 err = qlcnic_check_flash_fw_ver(adapter);
1631                 if (err)
1632                         goto err_out;
1633
1634                 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1635         }
1636
1637         err = qlcnic_need_fw_reset(adapter);
1638         if (err == 0)
1639                 goto check_fw_status;
1640
1641         err = qlcnic_pinit_from_rom(adapter);
1642         if (err)
1643                 goto err_out;
1644
1645         err = qlcnic_load_firmware(adapter);
1646         if (err)
1647                 goto err_out;
1648
1649         qlcnic_release_firmware(adapter);
1650         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1651
1652 check_fw_status:
1653         err = qlcnic_check_fw_status(adapter);
1654         if (err)
1655                 goto err_out;
1656
1657         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1658         qlcnic_idc_debug_info(adapter, 1);
1659         err = qlcnic_check_eswitch_mode(adapter);
1660         if (err) {
1661                 dev_err(&adapter->pdev->dev,
1662                         "Memory allocation failed for eswitch\n");
1663                 goto err_out;
1664         }
1665         err = qlcnic_set_mgmt_operations(adapter);
1666         if (err)
1667                 goto err_out;
1668
1669         qlcnic_check_options(adapter);
1670         adapter->need_fw_reset = 0;
1671
1672         qlcnic_release_firmware(adapter);
1673         return 0;
1674
1675 err_out:
1676         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1677         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1678
1679         qlcnic_release_firmware(adapter);
1680         return err;
1681 }
1682
1683 static int
1684 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1685 {
1686         irq_handler_t handler;
1687         struct qlcnic_host_sds_ring *sds_ring;
1688         struct qlcnic_host_tx_ring *tx_ring;
1689         int err, ring, num_sds_rings;
1690
1691         unsigned long flags = 0;
1692         struct net_device *netdev = adapter->netdev;
1693         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1694
1695         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1696                 if (qlcnic_82xx_check(adapter))
1697                         handler = qlcnic_tmp_intr;
1698                 else
1699                         handler = qlcnic_83xx_tmp_intr;
1700                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1701                         flags |= IRQF_SHARED;
1702
1703         } else {
1704                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1705                         handler = qlcnic_msix_intr;
1706                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1707                         handler = qlcnic_msi_intr;
1708                 else {
1709                         flags |= IRQF_SHARED;
1710                         if (qlcnic_82xx_check(adapter))
1711                                 handler = qlcnic_intr;
1712                         else
1713                                 handler = qlcnic_83xx_intr;
1714                 }
1715         }
1716         adapter->irq = netdev->irq;
1717
1718         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1719                 if (qlcnic_82xx_check(adapter) ||
1720                     (qlcnic_83xx_check(adapter) &&
1721                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1722                         num_sds_rings = adapter->drv_sds_rings;
1723                         for (ring = 0; ring < num_sds_rings; ring++) {
1724                                 sds_ring = &recv_ctx->sds_rings[ring];
1725                                 if (qlcnic_82xx_check(adapter) &&
1726                                     !qlcnic_check_multi_tx(adapter) &&
1727                                     (ring == (num_sds_rings - 1))) {
1728                                         if (!(adapter->flags &
1729                                               QLCNIC_MSIX_ENABLED))
1730                                                 snprintf(sds_ring->name,
1731                                                          sizeof(sds_ring->name),
1732                                                          "qlcnic");
1733                                         else
1734                                                 snprintf(sds_ring->name,
1735                                                          sizeof(sds_ring->name),
1736                                                          "%s-tx-0-rx-%d",
1737                                                          netdev->name, ring);
1738                                 } else {
1739                                         snprintf(sds_ring->name,
1740                                                  sizeof(sds_ring->name),
1741                                                  "%s-rx-%d",
1742                                                  netdev->name, ring);
1743                                 }
1744                                 err = request_irq(sds_ring->irq, handler, flags,
1745                                                   sds_ring->name, sds_ring);
1746                                 if (err)
1747                                         return err;
1748                         }
1749                 }
1750                 if ((qlcnic_82xx_check(adapter) &&
1751                      qlcnic_check_multi_tx(adapter)) ||
1752                     (qlcnic_83xx_check(adapter) &&
1753                      (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1754                      !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
1755                         handler = qlcnic_msix_tx_intr;
1756                         for (ring = 0; ring < adapter->drv_tx_rings;
1757                              ring++) {
1758                                 tx_ring = &adapter->tx_ring[ring];
1759                                 snprintf(tx_ring->name, sizeof(tx_ring->name),
1760                                          "%s-tx-%d", netdev->name, ring);
1761                                 err = request_irq(tx_ring->irq, handler, flags,
1762                                                   tx_ring->name, tx_ring);
1763                                 if (err)
1764                                         return err;
1765                         }
1766                 }
1767         }
1768         return 0;
1769 }
1770
1771 static void
1772 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1773 {
1774         int ring;
1775         struct qlcnic_host_sds_ring *sds_ring;
1776         struct qlcnic_host_tx_ring *tx_ring;
1777
1778         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1779
1780         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1781                 if (qlcnic_82xx_check(adapter) ||
1782                     (qlcnic_83xx_check(adapter) &&
1783                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1784                         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1785                                 sds_ring = &recv_ctx->sds_rings[ring];
1786                                 free_irq(sds_ring->irq, sds_ring);
1787                         }
1788                 }
1789                 if ((qlcnic_83xx_check(adapter) &&
1790                      !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
1791                     (qlcnic_82xx_check(adapter) &&
1792                      qlcnic_check_multi_tx(adapter))) {
1793                         for (ring = 0; ring < adapter->drv_tx_rings;
1794                              ring++) {
1795                                 tx_ring = &adapter->tx_ring[ring];
1796                                 if (tx_ring->irq)
1797                                         free_irq(tx_ring->irq, tx_ring);
1798                         }
1799                 }
1800         }
1801 }
1802
1803 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1804 {
1805         u32 capab = 0;
1806
1807         if (qlcnic_82xx_check(adapter)) {
1808                 if (adapter->ahw->extra_capability[0] &
1809                     QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1810                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1811         } else {
1812                 capab = adapter->ahw->capabilities;
1813                 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1814                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1815         }
1816 }
1817
1818 static int qlcnic_config_def_intr_coalesce(struct qlcnic_adapter *adapter)
1819 {
1820         struct qlcnic_hardware_context *ahw = adapter->ahw;
1821         int err;
1822
1823         /* Initialize interrupt coalesce parameters */
1824         ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1825
1826         if (qlcnic_83xx_check(adapter)) {
1827                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
1828                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1829                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1830                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1831                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1832
1833                 err = qlcnic_83xx_set_rx_tx_intr_coal(adapter);
1834         } else {
1835                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1836                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1837                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1838
1839                 err = qlcnic_82xx_set_rx_coalesce(adapter);
1840         }
1841
1842         return err;
1843 }
1844
1845 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1846 {
1847         int ring;
1848         struct qlcnic_host_rds_ring *rds_ring;
1849
1850         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1851                 return -EIO;
1852
1853         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1854                 return 0;
1855
1856         if (qlcnic_set_eswitch_port_config(adapter))
1857                 return -EIO;
1858
1859         qlcnic_get_lro_mss_capability(adapter);
1860
1861         if (qlcnic_fw_create_ctx(adapter))
1862                 return -EIO;
1863
1864         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1865                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1866                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1867         }
1868
1869         qlcnic_set_multi(netdev);
1870         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1871
1872         adapter->ahw->linkup = 0;
1873
1874         if (adapter->drv_sds_rings > 1)
1875                 qlcnic_config_rss(adapter, 1);
1876
1877         qlcnic_config_def_intr_coalesce(adapter);
1878
1879         if (netdev->features & NETIF_F_LRO)
1880                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1881
1882         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1883         qlcnic_napi_enable(adapter);
1884
1885         qlcnic_linkevent_request(adapter, 1);
1886
1887         adapter->ahw->reset_context = 0;
1888         netif_tx_start_all_queues(netdev);
1889         return 0;
1890 }
1891
1892 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1893 {
1894         int err = 0;
1895
1896         rtnl_lock();
1897         if (netif_running(netdev))
1898                 err = __qlcnic_up(adapter, netdev);
1899         rtnl_unlock();
1900
1901         return err;
1902 }
1903
1904 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1905 {
1906         int ring;
1907
1908         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1909                 return;
1910
1911         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1912                 return;
1913
1914         if (qlcnic_sriov_vf_check(adapter))
1915                 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1916         smp_mb();
1917         netif_carrier_off(netdev);
1918         adapter->ahw->linkup = 0;
1919         netif_tx_disable(netdev);
1920
1921         qlcnic_free_mac_list(adapter);
1922
1923         if (adapter->fhash.fnum)
1924                 qlcnic_delete_lb_filters(adapter);
1925
1926         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1927
1928         qlcnic_napi_disable(adapter);
1929
1930         qlcnic_fw_destroy_ctx(adapter);
1931         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1932
1933         qlcnic_reset_rx_buffers_list(adapter);
1934
1935         for (ring = 0; ring < adapter->drv_tx_rings; ring++)
1936                 qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
1937 }
1938
1939 /* Usage: During suspend and firmware recovery module */
1940
1941 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1942 {
1943         rtnl_lock();
1944         if (netif_running(netdev))
1945                 __qlcnic_down(adapter, netdev);
1946         rtnl_unlock();
1947
1948 }
1949
1950 int
1951 qlcnic_attach(struct qlcnic_adapter *adapter)
1952 {
1953         struct net_device *netdev = adapter->netdev;
1954         struct pci_dev *pdev = adapter->pdev;
1955         int err;
1956
1957         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1958                 return 0;
1959
1960         err = qlcnic_napi_add(adapter, netdev);
1961         if (err)
1962                 return err;
1963
1964         err = qlcnic_alloc_sw_resources(adapter);
1965         if (err) {
1966                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1967                 goto err_out_napi_del;
1968         }
1969
1970         err = qlcnic_alloc_hw_resources(adapter);
1971         if (err) {
1972                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1973                 goto err_out_free_sw;
1974         }
1975
1976         err = qlcnic_request_irq(adapter);
1977         if (err) {
1978                 dev_err(&pdev->dev, "failed to setup interrupt\n");
1979                 goto err_out_free_hw;
1980         }
1981
1982         qlcnic_create_sysfs_entries(adapter);
1983
1984 #ifdef CONFIG_QLCNIC_VXLAN
1985         if (qlcnic_encap_rx_offload(adapter))
1986                 vxlan_get_rx_port(netdev);
1987 #endif
1988
1989         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1990         return 0;
1991
1992 err_out_free_hw:
1993         qlcnic_free_hw_resources(adapter);
1994 err_out_free_sw:
1995         qlcnic_free_sw_resources(adapter);
1996 err_out_napi_del:
1997         qlcnic_napi_del(adapter);
1998         return err;
1999 }
2000
2001 void qlcnic_detach(struct qlcnic_adapter *adapter)
2002 {
2003         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2004                 return;
2005
2006         qlcnic_remove_sysfs_entries(adapter);
2007
2008         qlcnic_free_hw_resources(adapter);
2009         qlcnic_release_rx_buffers(adapter);
2010         qlcnic_free_irq(adapter);
2011         qlcnic_napi_del(adapter);
2012         qlcnic_free_sw_resources(adapter);
2013
2014         adapter->is_up = 0;
2015 }
2016
2017 void qlcnic_diag_free_res(struct net_device *netdev, int drv_sds_rings)
2018 {
2019         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2020         struct qlcnic_host_sds_ring *sds_ring;
2021         int drv_tx_rings = adapter->drv_tx_rings;
2022         int ring;
2023
2024         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
2025         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2026                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2027                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
2028                         qlcnic_disable_sds_intr(adapter, sds_ring);
2029                 }
2030         }
2031
2032         qlcnic_fw_destroy_ctx(adapter);
2033
2034         qlcnic_detach(adapter);
2035
2036         adapter->ahw->diag_test = 0;
2037         adapter->drv_sds_rings = drv_sds_rings;
2038         adapter->drv_tx_rings = drv_tx_rings;
2039
2040         if (qlcnic_attach(adapter))
2041                 goto out;
2042
2043         if (netif_running(netdev))
2044                 __qlcnic_up(adapter, netdev);
2045 out:
2046         netif_device_attach(netdev);
2047 }
2048
2049 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
2050 {
2051         int err = 0;
2052
2053         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
2054                                 GFP_KERNEL);
2055         if (!adapter->recv_ctx) {
2056                 err = -ENOMEM;
2057                 goto err_out;
2058         }
2059
2060         /* clear stats */
2061         memset(&adapter->stats, 0, sizeof(adapter->stats));
2062 err_out:
2063         return err;
2064 }
2065
2066 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
2067 {
2068         kfree(adapter->recv_ctx);
2069         adapter->recv_ctx = NULL;
2070
2071         if (adapter->ahw->fw_dump.tmpl_hdr) {
2072                 vfree(adapter->ahw->fw_dump.tmpl_hdr);
2073                 adapter->ahw->fw_dump.tmpl_hdr = NULL;
2074         }
2075
2076         kfree(adapter->ahw->reset.buff);
2077         adapter->ahw->fw_dump.tmpl_hdr = NULL;
2078 }
2079
2080 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
2081 {
2082         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2083         struct qlcnic_host_sds_ring *sds_ring;
2084         struct qlcnic_host_rds_ring *rds_ring;
2085         int ring;
2086         int ret;
2087
2088         netif_device_detach(netdev);
2089
2090         if (netif_running(netdev))
2091                 __qlcnic_down(adapter, netdev);
2092
2093         qlcnic_detach(adapter);
2094
2095         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
2096         adapter->ahw->diag_test = test;
2097         adapter->ahw->linkup = 0;
2098
2099         ret = qlcnic_attach(adapter);
2100         if (ret) {
2101                 netif_device_attach(netdev);
2102                 return ret;
2103         }
2104
2105         ret = qlcnic_fw_create_ctx(adapter);
2106         if (ret) {
2107                 qlcnic_detach(adapter);
2108                 netif_device_attach(netdev);
2109                 return ret;
2110         }
2111
2112         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
2113                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
2114                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
2115         }
2116
2117         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2118                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2119                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
2120                         qlcnic_enable_sds_intr(adapter, sds_ring);
2121                 }
2122         }
2123
2124         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
2125                 adapter->ahw->loopback_state = 0;
2126                 qlcnic_linkevent_request(adapter, 1);
2127         }
2128
2129         set_bit(__QLCNIC_DEV_UP, &adapter->state);
2130
2131         return 0;
2132 }
2133
2134 /* Reset context in hardware only */
2135 static int
2136 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
2137 {
2138         struct net_device *netdev = adapter->netdev;
2139
2140         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2141                 return -EBUSY;
2142
2143         netif_device_detach(netdev);
2144
2145         qlcnic_down(adapter, netdev);
2146
2147         qlcnic_up(adapter, netdev);
2148
2149         netif_device_attach(netdev);
2150
2151         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2152         netdev_info(adapter->netdev, "%s: soft reset complete\n", __func__);
2153         return 0;
2154 }
2155
2156 int
2157 qlcnic_reset_context(struct qlcnic_adapter *adapter)
2158 {
2159         int err = 0;
2160         struct net_device *netdev = adapter->netdev;
2161
2162         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2163                 return -EBUSY;
2164
2165         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
2166
2167                 netif_device_detach(netdev);
2168
2169                 if (netif_running(netdev))
2170                         __qlcnic_down(adapter, netdev);
2171
2172                 qlcnic_detach(adapter);
2173
2174                 if (netif_running(netdev)) {
2175                         err = qlcnic_attach(adapter);
2176                         if (!err) {
2177                                 __qlcnic_up(adapter, netdev);
2178                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2179                         }
2180                 }
2181
2182                 netif_device_attach(netdev);
2183         }
2184
2185         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2186         return err;
2187 }
2188
2189 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
2190 {
2191         struct qlcnic_hardware_context *ahw = adapter->ahw;
2192         u16 act_pci_fn = ahw->total_nic_func;
2193         u16 count;
2194
2195         ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
2196         if (act_pci_fn <= 2)
2197                 count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
2198                          act_pci_fn;
2199         else
2200                 count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
2201                          act_pci_fn;
2202         ahw->max_uc_count = count;
2203 }
2204
2205 int
2206 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
2207                     int pci_using_dac)
2208 {
2209         int err;
2210         struct pci_dev *pdev = adapter->pdev;
2211
2212         adapter->rx_csum = 1;
2213         adapter->ahw->mc_enabled = 0;
2214         qlcnic_set_mac_filter_count(adapter);
2215
2216         netdev->netdev_ops         = &qlcnic_netdev_ops;
2217         netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
2218
2219         qlcnic_change_mtu(netdev, netdev->mtu);
2220
2221         if (qlcnic_sriov_vf_check(adapter))
2222                 SET_ETHTOOL_OPS(netdev, &qlcnic_sriov_vf_ethtool_ops);
2223         else
2224                 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
2225
2226         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2227                              NETIF_F_IPV6_CSUM | NETIF_F_GRO |
2228                              NETIF_F_HW_VLAN_CTAG_RX);
2229         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
2230                                   NETIF_F_IPV6_CSUM);
2231
2232         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
2233                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
2234                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
2235         }
2236
2237         if (pci_using_dac) {
2238                 netdev->features |= NETIF_F_HIGHDMA;
2239                 netdev->vlan_features |= NETIF_F_HIGHDMA;
2240         }
2241
2242         if (qlcnic_vlan_tx_check(adapter))
2243                 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
2244
2245         if (qlcnic_sriov_vf_check(adapter))
2246                 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2247
2248         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
2249                 netdev->features |= NETIF_F_LRO;
2250
2251         if (qlcnic_encap_tx_offload(adapter)) {
2252                 netdev->features |= NETIF_F_GSO_UDP_TUNNEL;
2253
2254                 /* encapsulation Tx offload supported by Adapter */
2255                 netdev->hw_enc_features = NETIF_F_IP_CSUM        |
2256                                           NETIF_F_GSO_UDP_TUNNEL |
2257                                           NETIF_F_TSO            |
2258                                           NETIF_F_TSO6;
2259         }
2260
2261         if (qlcnic_encap_rx_offload(adapter))
2262                 netdev->hw_enc_features |= NETIF_F_RXCSUM;
2263
2264         netdev->hw_features = netdev->features;
2265         netdev->priv_flags |= IFF_UNICAST_FLT;
2266         netdev->irq = adapter->msix_entries[0].vector;
2267
2268         err = qlcnic_set_real_num_queues(adapter, netdev);
2269         if (err)
2270                 return err;
2271
2272         err = register_netdev(netdev);
2273         if (err) {
2274                 dev_err(&pdev->dev, "failed to register net device\n");
2275                 return err;
2276         }
2277
2278         qlcnic_dcb_init_dcbnl_ops(adapter->dcb);
2279
2280         return 0;
2281 }
2282
2283 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
2284 {
2285         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
2286                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
2287                 *pci_using_dac = 1;
2288         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
2289                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
2290                 *pci_using_dac = 0;
2291         else {
2292                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
2293                 return -EIO;
2294         }
2295
2296         return 0;
2297 }
2298
2299 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
2300 {
2301         int ring;
2302         struct qlcnic_host_tx_ring *tx_ring;
2303
2304         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2305                 tx_ring = &adapter->tx_ring[ring];
2306                 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
2307                         vfree(tx_ring->cmd_buf_arr);
2308                         tx_ring->cmd_buf_arr = NULL;
2309                 }
2310         }
2311         if (adapter->tx_ring != NULL)
2312                 kfree(adapter->tx_ring);
2313 }
2314
2315 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
2316                           struct net_device *netdev)
2317 {
2318         int ring, vector, index;
2319         struct qlcnic_host_tx_ring *tx_ring;
2320         struct qlcnic_cmd_buffer *cmd_buf_arr;
2321
2322         tx_ring = kcalloc(adapter->drv_tx_rings,
2323                           sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
2324         if (tx_ring == NULL)
2325                 return -ENOMEM;
2326
2327         adapter->tx_ring = tx_ring;
2328
2329         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2330                 tx_ring = &adapter->tx_ring[ring];
2331                 tx_ring->num_desc = adapter->num_txd;
2332                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
2333                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
2334                 if (cmd_buf_arr == NULL) {
2335                         qlcnic_free_tx_rings(adapter);
2336                         return -ENOMEM;
2337                 }
2338                 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
2339                 tx_ring->cmd_buf_arr = cmd_buf_arr;
2340                 spin_lock_init(&tx_ring->tx_clean_lock);
2341         }
2342
2343         if (qlcnic_83xx_check(adapter) ||
2344             (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
2345                 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2346                         tx_ring = &adapter->tx_ring[ring];
2347                         tx_ring->adapter = adapter;
2348                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
2349                                 index = adapter->drv_sds_rings + ring;
2350                                 vector = adapter->msix_entries[index].vector;
2351                                 tx_ring->irq = vector;
2352                         }
2353                 }
2354         }
2355
2356         return 0;
2357 }
2358
2359 void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
2360 {
2361         struct qlcnic_hardware_context *ahw = adapter->ahw;
2362         u32 fw_cmd = 0;
2363
2364         if (qlcnic_82xx_check(adapter))
2365                 fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
2366         else if (qlcnic_83xx_check(adapter))
2367                 fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
2368
2369         if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER)
2370                 qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
2371 }
2372
2373 static int
2374 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2375 {
2376         struct net_device *netdev = NULL;
2377         struct qlcnic_adapter *adapter = NULL;
2378         struct qlcnic_hardware_context *ahw;
2379         int err, pci_using_dac = -1;
2380         char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
2381
2382         if (pdev->is_virtfn)
2383                 return -ENODEV;
2384
2385         err = pci_enable_device(pdev);
2386         if (err)
2387                 return err;
2388
2389         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2390                 err = -ENODEV;
2391                 goto err_out_disable_pdev;
2392         }
2393
2394         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
2395         if (err)
2396                 goto err_out_disable_pdev;
2397
2398         err = pci_request_regions(pdev, qlcnic_driver_name);
2399         if (err)
2400                 goto err_out_disable_pdev;
2401
2402         pci_set_master(pdev);
2403         pci_enable_pcie_error_reporting(pdev);
2404
2405         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2406         if (!ahw) {
2407                 err = -ENOMEM;
2408                 goto err_out_free_res;
2409         }
2410
2411         switch (ent->device) {
2412         case PCI_DEVICE_ID_QLOGIC_QLE824X:
2413                 ahw->hw_ops = &qlcnic_hw_ops;
2414                 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2415                 break;
2416         case PCI_DEVICE_ID_QLOGIC_QLE834X:
2417         case PCI_DEVICE_ID_QLOGIC_QLE844X:
2418                 qlcnic_83xx_register_map(ahw);
2419                 break;
2420         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2421         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2422                 qlcnic_sriov_vf_register_map(ahw);
2423                 break;
2424         default:
2425                 goto err_out_free_hw_res;
2426         }
2427
2428         err = qlcnic_setup_pci_map(pdev, ahw);
2429         if (err)
2430                 goto err_out_free_hw_res;
2431
2432         netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
2433                                    QLCNIC_MAX_TX_RINGS);
2434         if (!netdev) {
2435                 err = -ENOMEM;
2436                 goto err_out_iounmap;
2437         }
2438
2439         SET_NETDEV_DEV(netdev, &pdev->dev);
2440
2441         adapter = netdev_priv(netdev);
2442         adapter->netdev  = netdev;
2443         adapter->pdev    = pdev;
2444         adapter->ahw = ahw;
2445
2446         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2447         if (adapter->qlcnic_wq == NULL) {
2448                 err = -ENOMEM;
2449                 dev_err(&pdev->dev, "Failed to create workqueue\n");
2450                 goto err_out_free_netdev;
2451         }
2452
2453         err = qlcnic_alloc_adapter_resources(adapter);
2454         if (err)
2455                 goto err_out_free_wq;
2456
2457         adapter->dev_rst_time = jiffies;
2458         ahw->revision_id = pdev->revision;
2459         ahw->max_vnic_func = qlcnic_get_vnic_func_count(adapter);
2460         if (qlcnic_mac_learn == FDB_MAC_LEARN)
2461                 adapter->fdb_mac_learn = true;
2462         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2463                 adapter->drv_mac_learn = true;
2464
2465         rwlock_init(&adapter->ahw->crb_lock);
2466         mutex_init(&adapter->ahw->mem_lock);
2467
2468         INIT_LIST_HEAD(&adapter->mac_list);
2469
2470         qlcnic_register_dcb(adapter);
2471
2472         if (qlcnic_82xx_check(adapter)) {
2473                 qlcnic_check_vf(adapter, ent);
2474                 adapter->portnum = adapter->ahw->pci_func;
2475                 err = qlcnic_start_firmware(adapter);
2476                 if (err) {
2477                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
2478                                 "\t\tIf reboot doesn't help, try flashing the card\n");
2479                         goto err_out_maintenance_mode;
2480                 }
2481
2482                 /* compute and set default and max tx/sds rings */
2483                 if (adapter->ahw->msix_supported) {
2484                         if (qlcnic_check_multi_tx_capability(adapter) == 1)
2485                                 qlcnic_set_tx_ring_count(adapter,
2486                                                          QLCNIC_SINGLE_RING);
2487                         else
2488                                 qlcnic_set_tx_ring_count(adapter,
2489                                                          QLCNIC_DEF_TX_RINGS);
2490                         qlcnic_set_sds_ring_count(adapter,
2491                                                   QLCNIC_DEF_SDS_RINGS);
2492                 } else {
2493                         qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
2494                         qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
2495                 }
2496
2497                 err = qlcnic_setup_idc_param(adapter);
2498                 if (err)
2499                         goto err_out_free_hw;
2500
2501                 adapter->flags |= QLCNIC_NEED_FLR;
2502
2503         } else if (qlcnic_83xx_check(adapter)) {
2504                 qlcnic_83xx_check_vf(adapter, ent);
2505                 adapter->portnum = adapter->ahw->pci_func;
2506                 err = qlcnic_83xx_init(adapter, pci_using_dac);
2507                 if (err) {
2508                         switch (err) {
2509                         case -ENOTRECOVERABLE:
2510                                 dev_err(&pdev->dev, "Adapter initialization failed due to a faulty hardware\n");
2511                                 dev_err(&pdev->dev, "Please replace the adapter with new one and return the faulty adapter for repair\n");
2512                                 goto err_out_free_hw;
2513                         case -ENOMEM:
2514                                 dev_err(&pdev->dev, "Adapter initialization failed. Please reboot\n");
2515                                 goto err_out_free_hw;
2516                         default:
2517                                 dev_err(&pdev->dev, "Adapter initialization failed. A reboot may be required to recover from this failure\n");
2518                                 dev_err(&pdev->dev, "If reboot does not help to recover from this failure, try a flash update of the adapter\n");
2519                                 goto err_out_maintenance_mode;
2520                         }
2521                 }
2522
2523                 if (qlcnic_sriov_vf_check(adapter))
2524                         return 0;
2525         } else {
2526                 dev_err(&pdev->dev,
2527                         "%s: failed. Please Reboot\n", __func__);
2528                 goto err_out_free_hw;
2529         }
2530
2531         if (qlcnic_read_mac_addr(adapter))
2532                 dev_warn(&pdev->dev, "failed to read mac addr\n");
2533
2534         qlcnic_read_phys_port_id(adapter);
2535
2536         if (adapter->portnum == 0) {
2537                 qlcnic_get_board_name(adapter, board_name);
2538
2539                 pr_info("%s: %s Board Chip rev 0x%x\n",
2540                         module_name(THIS_MODULE),
2541                         board_name, adapter->ahw->revision_id);
2542         }
2543
2544         if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2545             !!qlcnic_use_msi)
2546                 dev_warn(&pdev->dev,
2547                          "Device does not support MSI interrupts\n");
2548
2549         if (qlcnic_82xx_check(adapter)) {
2550                 qlcnic_dcb_enable(adapter->dcb);
2551                 qlcnic_dcb_get_info(adapter->dcb);
2552                 err = qlcnic_setup_intr(adapter);
2553
2554                 if (err) {
2555                         dev_err(&pdev->dev, "Failed to setup interrupt\n");
2556                         goto err_out_disable_msi;
2557                 }
2558         }
2559
2560         err = qlcnic_get_act_pci_func(adapter);
2561         if (err)
2562                 goto err_out_disable_mbx_intr;
2563
2564         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2565         if (err)
2566                 goto err_out_disable_mbx_intr;
2567
2568         if (adapter->portnum == 0)
2569                 qlcnic_set_drv_version(adapter);
2570
2571         pci_set_drvdata(pdev, adapter);
2572
2573         if (qlcnic_82xx_check(adapter))
2574                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2575                                      FW_POLL_DELAY);
2576
2577         switch (adapter->ahw->port_type) {
2578         case QLCNIC_GBE:
2579                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2580                                 adapter->netdev->name);
2581                 break;
2582         case QLCNIC_XGBE:
2583                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2584                                 adapter->netdev->name);
2585                 break;
2586         }
2587
2588         if (adapter->drv_mac_learn)
2589                 qlcnic_alloc_lb_filters_mem(adapter);
2590
2591         qlcnic_add_sysfs(adapter);
2592
2593         return 0;
2594
2595 err_out_disable_mbx_intr:
2596         if (qlcnic_83xx_check(adapter))
2597                 qlcnic_83xx_free_mbx_intr(adapter);
2598
2599 err_out_disable_msi:
2600         qlcnic_teardown_intr(adapter);
2601         qlcnic_cancel_idc_work(adapter);
2602         qlcnic_clr_all_drv_state(adapter, 0);
2603
2604 err_out_free_hw:
2605         qlcnic_free_adapter_resources(adapter);
2606
2607 err_out_free_wq:
2608         destroy_workqueue(adapter->qlcnic_wq);
2609
2610 err_out_free_netdev:
2611         free_netdev(netdev);
2612
2613 err_out_iounmap:
2614         qlcnic_cleanup_pci_map(ahw);
2615
2616 err_out_free_hw_res:
2617         kfree(ahw);
2618
2619 err_out_free_res:
2620         pci_release_regions(pdev);
2621
2622 err_out_disable_pdev:
2623         pci_disable_device(pdev);
2624         return err;
2625
2626 err_out_maintenance_mode:
2627         set_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state);
2628         netdev->netdev_ops = &qlcnic_netdev_failed_ops;
2629         SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_failed_ops);
2630         ahw->port_type = QLCNIC_XGBE;
2631
2632         if (qlcnic_83xx_check(adapter))
2633                 adapter->tgt_status_reg = NULL;
2634         else
2635                 ahw->board_type = QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS;
2636
2637         err = register_netdev(netdev);
2638
2639         if (err) {
2640                 dev_err(&pdev->dev, "Failed to register net device\n");
2641                 qlcnic_clr_all_drv_state(adapter, 0);
2642                 goto err_out_free_hw;
2643         }
2644
2645         pci_set_drvdata(pdev, adapter);
2646         qlcnic_add_sysfs(adapter);
2647
2648         return 0;
2649 }
2650
2651 static void qlcnic_remove(struct pci_dev *pdev)
2652 {
2653         struct qlcnic_adapter *adapter;
2654         struct net_device *netdev;
2655         struct qlcnic_hardware_context *ahw;
2656
2657         adapter = pci_get_drvdata(pdev);
2658         if (adapter == NULL)
2659                 return;
2660
2661         netdev = adapter->netdev;
2662         qlcnic_sriov_pf_disable(adapter);
2663
2664         qlcnic_cancel_idc_work(adapter);
2665         ahw = adapter->ahw;
2666
2667         unregister_netdev(netdev);
2668         qlcnic_sriov_cleanup(adapter);
2669
2670         if (qlcnic_83xx_check(adapter)) {
2671                 qlcnic_83xx_initialize_nic(adapter, 0);
2672                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2673                 qlcnic_83xx_free_mbx_intr(adapter);
2674                 qlcnic_83xx_detach_mailbox_work(adapter);
2675                 qlcnic_83xx_free_mailbox(ahw->mailbox);
2676                 kfree(ahw->fw_info);
2677         }
2678
2679         qlcnic_dcb_free(adapter->dcb);
2680
2681         qlcnic_detach(adapter);
2682
2683         if (adapter->npars != NULL)
2684                 kfree(adapter->npars);
2685         if (adapter->eswitch != NULL)
2686                 kfree(adapter->eswitch);
2687
2688         if (qlcnic_82xx_check(adapter))
2689                 qlcnic_clr_all_drv_state(adapter, 0);
2690
2691         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2692
2693         qlcnic_free_lb_filters_mem(adapter);
2694
2695         qlcnic_teardown_intr(adapter);
2696
2697         qlcnic_remove_sysfs(adapter);
2698
2699         qlcnic_cleanup_pci_map(adapter->ahw);
2700
2701         qlcnic_release_firmware(adapter);
2702
2703         pci_disable_pcie_error_reporting(pdev);
2704         pci_release_regions(pdev);
2705         pci_disable_device(pdev);
2706
2707         if (adapter->qlcnic_wq) {
2708                 destroy_workqueue(adapter->qlcnic_wq);
2709                 adapter->qlcnic_wq = NULL;
2710         }
2711
2712         qlcnic_free_adapter_resources(adapter);
2713         kfree(ahw);
2714         free_netdev(netdev);
2715 }
2716
2717 static void qlcnic_shutdown(struct pci_dev *pdev)
2718 {
2719         if (__qlcnic_shutdown(pdev))
2720                 return;
2721
2722         pci_disable_device(pdev);
2723 }
2724
2725 #ifdef CONFIG_PM
2726 static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2727 {
2728         int retval;
2729
2730         retval = __qlcnic_shutdown(pdev);
2731         if (retval)
2732                 return retval;
2733
2734         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2735         return 0;
2736 }
2737
2738 static int qlcnic_resume(struct pci_dev *pdev)
2739 {
2740         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2741         int err;
2742
2743         err = pci_enable_device(pdev);
2744         if (err)
2745                 return err;
2746
2747         pci_set_power_state(pdev, PCI_D0);
2748         pci_set_master(pdev);
2749         pci_restore_state(pdev);
2750
2751         return  __qlcnic_resume(adapter);
2752 }
2753 #endif
2754
2755 static int qlcnic_open(struct net_device *netdev)
2756 {
2757         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2758         int err;
2759
2760         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
2761                 netdev_err(netdev, "%s: Device is in non-operational state\n",
2762                            __func__);
2763
2764                 return -EIO;
2765         }
2766
2767         netif_carrier_off(netdev);
2768
2769         err = qlcnic_attach(adapter);
2770         if (err)
2771                 return err;
2772
2773         err = __qlcnic_up(adapter, netdev);
2774         if (err)
2775                 qlcnic_detach(adapter);
2776
2777         return err;
2778 }
2779
2780 /*
2781  * qlcnic_close - Disables a network interface entry point
2782  */
2783 static int qlcnic_close(struct net_device *netdev)
2784 {
2785         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2786
2787         __qlcnic_down(adapter, netdev);
2788
2789         return 0;
2790 }
2791
2792 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2793 {
2794         void *head;
2795         int i;
2796         struct net_device *netdev = adapter->netdev;
2797         u32 filter_size = 0;
2798         u16 act_pci_func = 0;
2799
2800         if (adapter->fhash.fmax && adapter->fhash.fhead)
2801                 return;
2802
2803         act_pci_func = adapter->ahw->total_nic_func;
2804         spin_lock_init(&adapter->mac_learn_lock);
2805         spin_lock_init(&adapter->rx_mac_learn_lock);
2806
2807         if (qlcnic_82xx_check(adapter)) {
2808                 filter_size = QLCNIC_LB_MAX_FILTERS;
2809                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2810         } else {
2811                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2812                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2813         }
2814
2815         head = kcalloc(adapter->fhash.fbucket_size,
2816                        sizeof(struct hlist_head), GFP_ATOMIC);
2817
2818         if (!head)
2819                 return;
2820
2821         adapter->fhash.fmax = (filter_size / act_pci_func);
2822         adapter->fhash.fhead = head;
2823
2824         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2825                     act_pci_func, adapter->fhash.fmax);
2826
2827         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2828                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2829
2830         adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2831
2832         head = kcalloc(adapter->rx_fhash.fbucket_size,
2833                        sizeof(struct hlist_head), GFP_ATOMIC);
2834
2835         if (!head)
2836                 return;
2837
2838         adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2839         adapter->rx_fhash.fhead = head;
2840
2841         for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2842                 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2843 }
2844
2845 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2846 {
2847         if (adapter->fhash.fmax && adapter->fhash.fhead)
2848                 kfree(adapter->fhash.fhead);
2849
2850         adapter->fhash.fhead = NULL;
2851         adapter->fhash.fmax = 0;
2852
2853         if (adapter->rx_fhash.fmax && adapter->rx_fhash.fhead)
2854                 kfree(adapter->rx_fhash.fhead);
2855
2856         adapter->rx_fhash.fmax = 0;
2857         adapter->rx_fhash.fhead = NULL;
2858 }
2859
2860 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2861 {
2862         struct net_device *netdev = adapter->netdev;
2863         u32 temp_state, temp_val, temp = 0;
2864         int rv = 0;
2865
2866         if (qlcnic_83xx_check(adapter))
2867                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2868
2869         if (qlcnic_82xx_check(adapter))
2870                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2871
2872         temp_state = qlcnic_get_temp_state(temp);
2873         temp_val = qlcnic_get_temp_val(temp);
2874
2875         if (temp_state == QLCNIC_TEMP_PANIC) {
2876                 dev_err(&netdev->dev,
2877                        "Device temperature %d degrees C exceeds"
2878                        " maximum allowed. Hardware has been shut down.\n",
2879                        temp_val);
2880                 rv = 1;
2881         } else if (temp_state == QLCNIC_TEMP_WARN) {
2882                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2883                         dev_err(&netdev->dev,
2884                                "Device temperature %d degrees C "
2885                                "exceeds operating range."
2886                                " Immediate action needed.\n",
2887                                temp_val);
2888                 }
2889         } else {
2890                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2891                         dev_info(&netdev->dev,
2892                                "Device temperature is now %d degrees C"
2893                                " in normal range.\n", temp_val);
2894                 }
2895         }
2896         adapter->ahw->temp = temp_state;
2897         return rv;
2898 }
2899
2900 static inline void dump_tx_ring_desc(struct qlcnic_host_tx_ring *tx_ring)
2901 {
2902         int i;
2903         struct cmd_desc_type0 *tx_desc_info;
2904
2905         for (i = 0; i < tx_ring->num_desc; i++) {
2906                 tx_desc_info = &tx_ring->desc_head[i];
2907                 pr_info("TX Desc: %d\n", i);
2908                 print_hex_dump(KERN_INFO, "TX: ", DUMP_PREFIX_OFFSET, 16, 1,
2909                                &tx_ring->desc_head[i],
2910                                sizeof(struct cmd_desc_type0), true);
2911         }
2912 }
2913
2914 static void qlcnic_dump_tx_rings(struct qlcnic_adapter *adapter)
2915 {
2916         struct net_device *netdev = adapter->netdev;
2917         struct qlcnic_host_tx_ring *tx_ring;
2918         int ring;
2919
2920         if (!netdev || !netif_running(netdev))
2921                 return;
2922
2923         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2924                 tx_ring = &adapter->tx_ring[ring];
2925                 netdev_info(netdev, "Tx ring=%d Context Id=0x%x\n",
2926                             ring, tx_ring->ctx_id);
2927                 netdev_info(netdev,
2928                             "xmit_finished=%llu, xmit_called=%llu, xmit_on=%llu, xmit_off=%llu\n",
2929                             tx_ring->tx_stats.xmit_finished,
2930                             tx_ring->tx_stats.xmit_called,
2931                             tx_ring->tx_stats.xmit_on,
2932                             tx_ring->tx_stats.xmit_off);
2933                 netdev_info(netdev,
2934                             "crb_intr_mask=%d, hw_producer=%d, sw_producer=%d sw_consumer=%d, hw_consumer=%d\n",
2935                             readl(tx_ring->crb_intr_mask),
2936                             readl(tx_ring->crb_cmd_producer),
2937                             tx_ring->producer, tx_ring->sw_consumer,
2938                             le32_to_cpu(*(tx_ring->hw_consumer)));
2939
2940                 netdev_info(netdev, "Total desc=%d, Available desc=%d\n",
2941                             tx_ring->num_desc, qlcnic_tx_avail(tx_ring));
2942
2943                 if (netif_msg_tx_done(adapter->ahw))
2944                         dump_tx_ring_desc(tx_ring);
2945         }
2946 }
2947
2948 static void qlcnic_tx_timeout(struct net_device *netdev)
2949 {
2950         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2951
2952         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2953                 return;
2954
2955         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS) {
2956                 netdev_info(netdev, "Tx timeout, reset the adapter.\n");
2957                 if (qlcnic_82xx_check(adapter))
2958                         adapter->need_fw_reset = 1;
2959                 else if (qlcnic_83xx_check(adapter))
2960                         qlcnic_83xx_idc_request_reset(adapter,
2961                                                       QLCNIC_FORCE_FW_DUMP_KEY);
2962         } else {
2963                 netdev_info(netdev, "Tx timeout, reset adapter context.\n");
2964                 qlcnic_dump_tx_rings(adapter);
2965                 adapter->ahw->reset_context = 1;
2966         }
2967 }
2968
2969 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2970 {
2971         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2972         struct net_device_stats *stats = &netdev->stats;
2973
2974         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2975                 qlcnic_update_stats(adapter);
2976
2977         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2978         stats->tx_packets = adapter->stats.xmitfinished;
2979         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2980         stats->tx_bytes = adapter->stats.txbytes;
2981         stats->rx_dropped = adapter->stats.rxdropped;
2982         stats->tx_dropped = adapter->stats.txdropped;
2983
2984         return stats;
2985 }
2986
2987 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
2988 {
2989         u32 status;
2990
2991         status = readl(adapter->isr_int_vec);
2992
2993         if (!(status & adapter->ahw->int_vec_bit))
2994                 return IRQ_NONE;
2995
2996         /* check interrupt state machine, to be sure */
2997         status = readl(adapter->crb_int_state_reg);
2998         if (!ISR_LEGACY_INT_TRIGGERED(status))
2999                 return IRQ_NONE;
3000
3001         writel(0xffffffff, adapter->tgt_status_reg);
3002         /* read twice to ensure write is flushed */
3003         readl(adapter->isr_int_vec);
3004         readl(adapter->isr_int_vec);
3005
3006         return IRQ_HANDLED;
3007 }
3008
3009 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
3010 {
3011         struct qlcnic_host_sds_ring *sds_ring = data;
3012         struct qlcnic_adapter *adapter = sds_ring->adapter;
3013
3014         if (adapter->flags & QLCNIC_MSIX_ENABLED)
3015                 goto done;
3016         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
3017                 writel(0xffffffff, adapter->tgt_status_reg);
3018                 goto done;
3019         }
3020
3021         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3022                 return IRQ_NONE;
3023
3024 done:
3025         adapter->ahw->diag_cnt++;
3026         qlcnic_enable_sds_intr(adapter, sds_ring);
3027         return IRQ_HANDLED;
3028 }
3029
3030 static irqreturn_t qlcnic_intr(int irq, void *data)
3031 {
3032         struct qlcnic_host_sds_ring *sds_ring = data;
3033         struct qlcnic_adapter *adapter = sds_ring->adapter;
3034
3035         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3036                 return IRQ_NONE;
3037
3038         napi_schedule(&sds_ring->napi);
3039
3040         return IRQ_HANDLED;
3041 }
3042
3043 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
3044 {
3045         struct qlcnic_host_sds_ring *sds_ring = data;
3046         struct qlcnic_adapter *adapter = sds_ring->adapter;
3047
3048         /* clear interrupt */
3049         writel(0xffffffff, adapter->tgt_status_reg);
3050
3051         napi_schedule(&sds_ring->napi);
3052         return IRQ_HANDLED;
3053 }
3054
3055 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
3056 {
3057         struct qlcnic_host_sds_ring *sds_ring = data;
3058
3059         napi_schedule(&sds_ring->napi);
3060         return IRQ_HANDLED;
3061 }
3062
3063 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
3064 {
3065         struct qlcnic_host_tx_ring *tx_ring = data;
3066
3067         napi_schedule(&tx_ring->napi);
3068         return IRQ_HANDLED;
3069 }
3070
3071 #ifdef CONFIG_NET_POLL_CONTROLLER
3072 static void qlcnic_poll_controller(struct net_device *netdev)
3073 {
3074         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3075         struct qlcnic_host_sds_ring *sds_ring;
3076         struct qlcnic_recv_context *recv_ctx;
3077         struct qlcnic_host_tx_ring *tx_ring;
3078         int ring;
3079
3080         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3081                 return;
3082
3083         recv_ctx = adapter->recv_ctx;
3084
3085         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3086                 sds_ring = &recv_ctx->sds_rings[ring];
3087                 qlcnic_disable_sds_intr(adapter, sds_ring);
3088                 napi_schedule(&sds_ring->napi);
3089         }
3090
3091         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
3092                 /* Only Multi-Tx queue capable devices need to
3093                  * schedule NAPI for TX rings
3094                  */
3095                 if ((qlcnic_83xx_check(adapter) &&
3096                      (adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
3097                     (qlcnic_82xx_check(adapter) &&
3098                      !qlcnic_check_multi_tx(adapter)))
3099                         return;
3100
3101                 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3102                         tx_ring = &adapter->tx_ring[ring];
3103                         qlcnic_disable_tx_intr(adapter, tx_ring);
3104                         napi_schedule(&tx_ring->napi);
3105                 }
3106         }
3107 }
3108 #endif
3109
3110 static void
3111 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
3112 {
3113         u32 val;
3114
3115         val = adapter->portnum & 0xf;
3116         val |= encoding << 7;
3117         val |= (jiffies - adapter->dev_rst_time) << 8;
3118
3119         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
3120         adapter->dev_rst_time = jiffies;
3121 }
3122
3123 static int
3124 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
3125 {
3126         u32  val;
3127
3128         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
3129                         state != QLCNIC_DEV_NEED_QUISCENT);
3130
3131         if (qlcnic_api_lock(adapter))
3132                 return -EIO;
3133
3134         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3135
3136         if (state == QLCNIC_DEV_NEED_RESET)
3137                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3138         else if (state == QLCNIC_DEV_NEED_QUISCENT)
3139                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
3140
3141         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3142
3143         qlcnic_api_unlock(adapter);
3144
3145         return 0;
3146 }
3147
3148 static int
3149 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
3150 {
3151         u32  val;
3152
3153         if (qlcnic_api_lock(adapter))
3154                 return -EBUSY;
3155
3156         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3157         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3158         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3159
3160         qlcnic_api_unlock(adapter);
3161
3162         return 0;
3163 }
3164
3165 void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
3166 {
3167         u32  val;
3168
3169         if (qlcnic_api_lock(adapter))
3170                 goto err;
3171
3172         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3173         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
3174         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3175
3176         if (failed) {
3177                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3178                                     QLCNIC_DEV_FAILED);
3179                 dev_info(&adapter->pdev->dev,
3180                                 "Device state set to Failed. Please Reboot\n");
3181         } else if (!(val & 0x11111111))
3182                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3183                                     QLCNIC_DEV_COLD);
3184
3185         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3186         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3187         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3188
3189         qlcnic_api_unlock(adapter);
3190 err:
3191         adapter->fw_fail_cnt = 0;
3192         adapter->flags &= ~QLCNIC_FW_HANG;
3193         clear_bit(__QLCNIC_START_FW, &adapter->state);
3194         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3195 }
3196
3197 /* Grab api lock, before checking state */
3198 static int
3199 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
3200 {
3201         int act, state, active_mask;
3202         struct qlcnic_hardware_context *ahw = adapter->ahw;
3203
3204         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3205         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3206
3207         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
3208                 active_mask = (~(1 << (ahw->pci_func * 4)));
3209                 act = act & active_mask;
3210         }
3211
3212         if (((state & 0x11111111) == (act & 0x11111111)) ||
3213                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
3214                 return 0;
3215         else
3216                 return 1;
3217 }
3218
3219 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
3220 {
3221         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
3222
3223         if (val != QLCNIC_DRV_IDC_VER) {
3224                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
3225                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
3226         }
3227
3228         return 0;
3229 }
3230
3231 static int
3232 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
3233 {
3234         u32 val, prev_state;
3235         u8 dev_init_timeo = adapter->dev_init_timeo;
3236         u8 portnum = adapter->portnum;
3237         u8 ret;
3238
3239         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
3240                 return 1;
3241
3242         if (qlcnic_api_lock(adapter))
3243                 return -1;
3244
3245         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3246         if (!(val & (1 << (portnum * 4)))) {
3247                 QLC_DEV_SET_REF_CNT(val, portnum);
3248                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3249         }
3250
3251         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3252         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
3253
3254         switch (prev_state) {
3255         case QLCNIC_DEV_COLD:
3256                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3257                                     QLCNIC_DEV_INITIALIZING);
3258                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
3259                                     QLCNIC_DRV_IDC_VER);
3260                 qlcnic_idc_debug_info(adapter, 0);
3261                 qlcnic_api_unlock(adapter);
3262                 return 1;
3263
3264         case QLCNIC_DEV_READY:
3265                 ret = qlcnic_check_idc_ver(adapter);
3266                 qlcnic_api_unlock(adapter);
3267                 return ret;
3268
3269         case QLCNIC_DEV_NEED_RESET:
3270                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3271                 QLC_DEV_SET_RST_RDY(val, portnum);
3272                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3273                 break;
3274
3275         case QLCNIC_DEV_NEED_QUISCENT:
3276                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3277                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
3278                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3279                 break;
3280
3281         case QLCNIC_DEV_FAILED:
3282                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
3283                 qlcnic_api_unlock(adapter);
3284                 return -1;
3285
3286         case QLCNIC_DEV_INITIALIZING:
3287         case QLCNIC_DEV_QUISCENT:
3288                 break;
3289         }
3290
3291         qlcnic_api_unlock(adapter);
3292
3293         do {
3294                 msleep(1000);
3295                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3296
3297                 if (prev_state == QLCNIC_DEV_QUISCENT)
3298                         continue;
3299         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
3300
3301         if (!dev_init_timeo) {
3302                 dev_err(&adapter->pdev->dev,
3303                         "Waiting for device to initialize timeout\n");
3304                 return -1;
3305         }
3306
3307         if (qlcnic_api_lock(adapter))
3308                 return -1;
3309
3310         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3311         QLC_DEV_CLR_RST_QSCNT(val, portnum);
3312         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3313
3314         ret = qlcnic_check_idc_ver(adapter);
3315         qlcnic_api_unlock(adapter);
3316
3317         return ret;
3318 }
3319
3320 static void
3321 qlcnic_fwinit_work(struct work_struct *work)
3322 {
3323         struct qlcnic_adapter *adapter = container_of(work,
3324                         struct qlcnic_adapter, fw_work.work);
3325         u32 dev_state = 0xf;
3326         u32 val;
3327
3328         if (qlcnic_api_lock(adapter))
3329                 goto err_ret;
3330
3331         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3332         if (dev_state == QLCNIC_DEV_QUISCENT ||
3333             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3334                 qlcnic_api_unlock(adapter);
3335                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
3336                                                 FW_POLL_DELAY * 2);
3337                 return;
3338         }
3339
3340         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
3341                 qlcnic_api_unlock(adapter);
3342                 goto wait_npar;
3343         }
3344
3345         if (dev_state == QLCNIC_DEV_INITIALIZING ||
3346             dev_state == QLCNIC_DEV_READY) {
3347                 dev_info(&adapter->pdev->dev, "Detected state change from "
3348                                 "DEV_NEED_RESET, skipping ack check\n");
3349                 goto skip_ack_check;
3350         }
3351
3352         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
3353                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
3354                                         adapter->reset_ack_timeo);
3355                 goto skip_ack_check;
3356         }
3357
3358         if (!qlcnic_check_drv_state(adapter)) {
3359 skip_ack_check:
3360                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3361
3362                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
3363                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3364                                             QLCNIC_DEV_INITIALIZING);
3365                         set_bit(__QLCNIC_START_FW, &adapter->state);
3366                         QLCDB(adapter, DRV, "Restarting fw\n");
3367                         qlcnic_idc_debug_info(adapter, 0);
3368                         val = QLC_SHARED_REG_RD32(adapter,
3369                                                   QLCNIC_CRB_DRV_STATE);
3370                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3371                         QLC_SHARED_REG_WR32(adapter,
3372                                             QLCNIC_CRB_DRV_STATE, val);
3373                 }
3374
3375                 qlcnic_api_unlock(adapter);
3376
3377                 rtnl_lock();
3378                 if (qlcnic_check_fw_dump_state(adapter) &&
3379                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3380                         QLCDB(adapter, DRV, "Take FW dump\n");
3381                         qlcnic_dump_fw(adapter);
3382                         adapter->flags |= QLCNIC_FW_HANG;
3383                 }
3384                 rtnl_unlock();
3385
3386                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
3387                 if (!adapter->nic_ops->start_firmware(adapter)) {
3388                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3389                         adapter->fw_wait_cnt = 0;
3390                         return;
3391                 }
3392                 goto err_ret;
3393         }
3394
3395         qlcnic_api_unlock(adapter);
3396
3397 wait_npar:
3398         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3399         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
3400
3401         switch (dev_state) {
3402         case QLCNIC_DEV_READY:
3403                 if (!qlcnic_start_firmware(adapter)) {
3404                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3405                         adapter->fw_wait_cnt = 0;
3406                         return;
3407                 }
3408         case QLCNIC_DEV_FAILED:
3409                 break;
3410         default:
3411                 qlcnic_schedule_work(adapter,
3412                         qlcnic_fwinit_work, FW_POLL_DELAY);
3413                 return;
3414         }
3415
3416 err_ret:
3417         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
3418                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
3419         netif_device_attach(adapter->netdev);
3420         qlcnic_clr_all_drv_state(adapter, 0);
3421 }
3422
3423 static void
3424 qlcnic_detach_work(struct work_struct *work)
3425 {
3426         struct qlcnic_adapter *adapter = container_of(work,
3427                         struct qlcnic_adapter, fw_work.work);
3428         struct net_device *netdev = adapter->netdev;
3429         u32 status;
3430
3431         netif_device_detach(netdev);
3432
3433         /* Dont grab rtnl lock during Quiscent mode */
3434         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3435                 if (netif_running(netdev))
3436                         __qlcnic_down(adapter, netdev);
3437         } else
3438                 qlcnic_down(adapter, netdev);
3439
3440         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3441
3442         if (status & QLCNIC_RCODE_FATAL_ERROR) {
3443                 dev_err(&adapter->pdev->dev,
3444                         "Detaching the device: peg halt status1=0x%x\n",
3445                                         status);
3446
3447                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
3448                         dev_err(&adapter->pdev->dev,
3449                         "On board active cooling fan failed. "
3450                                 "Device has been halted.\n");
3451                         dev_err(&adapter->pdev->dev,
3452                                 "Replace the adapter.\n");
3453                 }
3454
3455                 goto err_ret;
3456         }
3457
3458         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
3459                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
3460                         adapter->ahw->temp);
3461                 goto err_ret;
3462         }
3463
3464         /* Dont ack if this instance is the reset owner */
3465         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3466                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
3467                         dev_err(&adapter->pdev->dev,
3468                                 "Failed to set driver state,"
3469                                         "detaching the device.\n");
3470                         goto err_ret;
3471                 }
3472         }
3473
3474         adapter->fw_wait_cnt = 0;
3475
3476         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3477
3478         return;
3479
3480 err_ret:
3481         netif_device_attach(netdev);
3482         qlcnic_clr_all_drv_state(adapter, 1);
3483 }
3484
3485 /*Transit NPAR state to NON Operational */
3486 static void
3487 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3488 {
3489         u32 state;
3490
3491         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3492         if (state == QLCNIC_DEV_NPAR_NON_OPER)
3493                 return;
3494
3495         if (qlcnic_api_lock(adapter))
3496                 return;
3497         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3498                             QLCNIC_DEV_NPAR_NON_OPER);
3499         qlcnic_api_unlock(adapter);
3500 }
3501
3502 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter,
3503                                           u32 key)
3504 {
3505         u32 state, xg_val = 0, gb_val = 0;
3506
3507         qlcnic_xg_set_xg0_mask(xg_val);
3508         qlcnic_xg_set_xg1_mask(xg_val);
3509         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3510         qlcnic_gb_set_gb0_mask(gb_val);
3511         qlcnic_gb_set_gb1_mask(gb_val);
3512         qlcnic_gb_set_gb2_mask(gb_val);
3513         qlcnic_gb_set_gb3_mask(gb_val);
3514         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3515         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3516                                 " on all ports\n");
3517         adapter->need_fw_reset = 1;
3518
3519         if (qlcnic_api_lock(adapter))
3520                 return;
3521
3522         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3523
3524         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
3525                 netdev_err(adapter->netdev, "%s: Device is in non-operational state\n",
3526                            __func__);
3527                 qlcnic_api_unlock(adapter);
3528
3529                 return;
3530         }
3531
3532         if (state == QLCNIC_DEV_READY) {
3533                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3534                                     QLCNIC_DEV_NEED_RESET);
3535                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3536                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3537                 qlcnic_idc_debug_info(adapter, 0);
3538         }
3539
3540         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3541                             QLCNIC_DEV_NPAR_NON_OPER);
3542         qlcnic_api_unlock(adapter);
3543 }
3544
3545 /* Transit to NPAR READY state from NPAR NOT READY state */
3546 static void
3547 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3548 {
3549         if (qlcnic_api_lock(adapter))
3550                 return;
3551
3552         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3553                             QLCNIC_DEV_NPAR_OPER);
3554         QLCDB(adapter, DRV, "NPAR operational state set\n");
3555
3556         qlcnic_api_unlock(adapter);
3557 }
3558
3559 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3560                           work_func_t func, int delay)
3561 {
3562         if (test_bit(__QLCNIC_AER, &adapter->state))
3563                 return;
3564
3565         INIT_DELAYED_WORK(&adapter->fw_work, func);
3566         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3567                            round_jiffies_relative(delay));
3568 }
3569
3570 static void
3571 qlcnic_attach_work(struct work_struct *work)
3572 {
3573         struct qlcnic_adapter *adapter = container_of(work,
3574                                 struct qlcnic_adapter, fw_work.work);
3575         struct net_device *netdev = adapter->netdev;
3576         u32 npar_state;
3577
3578         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3579                 npar_state = QLC_SHARED_REG_RD32(adapter,
3580                                                  QLCNIC_CRB_DEV_NPAR_STATE);
3581                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3582                         qlcnic_clr_all_drv_state(adapter, 0);
3583                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3584                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
3585                                                         FW_POLL_DELAY);
3586                 else
3587                         goto attach;
3588                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3589                 return;
3590         }
3591 attach:
3592         qlcnic_dcb_get_info(adapter->dcb);
3593
3594         if (netif_running(netdev)) {
3595                 if (qlcnic_up(adapter, netdev))
3596                         goto done;
3597
3598                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3599         }
3600
3601 done:
3602         netif_device_attach(netdev);
3603         adapter->fw_fail_cnt = 0;
3604         adapter->flags &= ~QLCNIC_FW_HANG;
3605         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3606         if (adapter->portnum == 0)
3607                 qlcnic_set_drv_version(adapter);
3608
3609         if (!qlcnic_clr_drv_state(adapter))
3610                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3611                                                         FW_POLL_DELAY);
3612 }
3613
3614 static int
3615 qlcnic_check_health(struct qlcnic_adapter *adapter)
3616 {
3617         struct qlcnic_hardware_context *ahw = adapter->ahw;
3618         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
3619         u32 state = 0, heartbeat;
3620         u32 peg_status;
3621         int err = 0;
3622
3623         if (qlcnic_check_temp(adapter))
3624                 goto detach;
3625
3626         if (adapter->need_fw_reset)
3627                 qlcnic_dev_request_reset(adapter, 0);
3628
3629         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3630         if (state == QLCNIC_DEV_NEED_RESET) {
3631                 qlcnic_set_npar_non_operational(adapter);
3632                 adapter->need_fw_reset = 1;
3633         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3634                 goto detach;
3635
3636         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3637         if (heartbeat != adapter->heartbeat) {
3638                 adapter->heartbeat = heartbeat;
3639                 adapter->fw_fail_cnt = 0;
3640                 if (adapter->need_fw_reset)
3641                         goto detach;
3642
3643                 if (ahw->reset_context && qlcnic_auto_fw_reset)
3644                         qlcnic_reset_hw_context(adapter);
3645
3646                 return 0;
3647         }
3648
3649         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3650                 return 0;
3651
3652         adapter->flags |= QLCNIC_FW_HANG;
3653
3654         qlcnic_dev_request_reset(adapter, 0);
3655
3656         if (qlcnic_auto_fw_reset)
3657                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3658
3659         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3660         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3661         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3662                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3663                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3664                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3665                         "PEG_NET_4_PC: 0x%x\n",
3666                         peg_status,
3667                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3668                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3669                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3670                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3671                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3672                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3673         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3674                 dev_err(&adapter->pdev->dev,
3675                         "Firmware aborted with error code 0x00006700. "
3676                                 "Device is being reset.\n");
3677 detach:
3678         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3679                 QLCNIC_DEV_NEED_RESET;
3680
3681         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3682                                                       &adapter->state)) {
3683
3684                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3685                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3686         } else if (!qlcnic_auto_fw_reset && fw_dump->enable &&
3687                    adapter->flags & QLCNIC_FW_RESET_OWNER) {
3688                 qlcnic_dump_fw(adapter);
3689         }
3690
3691         return 1;
3692 }
3693
3694 void qlcnic_fw_poll_work(struct work_struct *work)
3695 {
3696         struct qlcnic_adapter *adapter = container_of(work,
3697                                 struct qlcnic_adapter, fw_work.work);
3698
3699         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3700                 goto reschedule;
3701
3702
3703         if (qlcnic_check_health(adapter))
3704                 return;
3705
3706         if (adapter->fhash.fnum)
3707                 qlcnic_prune_lb_filters(adapter);
3708
3709 reschedule:
3710         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3711 }
3712
3713 static int qlcnic_is_first_func(struct pci_dev *pdev)
3714 {
3715         struct pci_dev *oth_pdev;
3716         int val = pdev->devfn;
3717
3718         while (val-- > 0) {
3719                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3720                         (pdev->bus), pdev->bus->number,
3721                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3722                 if (!oth_pdev)
3723                         continue;
3724
3725                 if (oth_pdev->current_state != PCI_D3cold) {
3726                         pci_dev_put(oth_pdev);
3727                         return 0;
3728                 }
3729                 pci_dev_put(oth_pdev);
3730         }
3731         return 1;
3732 }
3733
3734 static int qlcnic_attach_func(struct pci_dev *pdev)
3735 {
3736         int err, first_func;
3737         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3738         struct net_device *netdev = adapter->netdev;
3739
3740         pdev->error_state = pci_channel_io_normal;
3741
3742         err = pci_enable_device(pdev);
3743         if (err)
3744                 return err;
3745
3746         pci_set_master(pdev);
3747         pci_restore_state(pdev);
3748
3749         first_func = qlcnic_is_first_func(pdev);
3750
3751         if (qlcnic_api_lock(adapter))
3752                 return -EINVAL;
3753
3754         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3755                 adapter->need_fw_reset = 1;
3756                 set_bit(__QLCNIC_START_FW, &adapter->state);
3757                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3758                                     QLCNIC_DEV_INITIALIZING);
3759                 QLCDB(adapter, DRV, "Restarting fw\n");
3760         }
3761         qlcnic_api_unlock(adapter);
3762
3763         err = qlcnic_start_firmware(adapter);
3764         if (err)
3765                 return err;
3766
3767         qlcnic_clr_drv_state(adapter);
3768         kfree(adapter->msix_entries);
3769         adapter->msix_entries = NULL;
3770         err = qlcnic_setup_intr(adapter);
3771
3772         if (err) {
3773                 kfree(adapter->msix_entries);
3774                 netdev_err(netdev, "failed to setup interrupt\n");
3775                 return err;
3776         }
3777
3778         if (netif_running(netdev)) {
3779                 err = qlcnic_attach(adapter);
3780                 if (err) {
3781                         qlcnic_clr_all_drv_state(adapter, 1);
3782                         clear_bit(__QLCNIC_AER, &adapter->state);
3783                         netif_device_attach(netdev);
3784                         return err;
3785                 }
3786
3787                 err = qlcnic_up(adapter, netdev);
3788                 if (err)
3789                         goto done;
3790
3791                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3792         }
3793  done:
3794         netif_device_attach(netdev);
3795         return err;
3796 }
3797
3798 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
3799                                                       pci_channel_state_t state)
3800 {
3801         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3802         struct net_device *netdev = adapter->netdev;
3803
3804         if (state == pci_channel_io_perm_failure)
3805                 return PCI_ERS_RESULT_DISCONNECT;
3806
3807         if (state == pci_channel_io_normal)
3808                 return PCI_ERS_RESULT_RECOVERED;
3809
3810         set_bit(__QLCNIC_AER, &adapter->state);
3811         netif_device_detach(netdev);
3812
3813         cancel_delayed_work_sync(&adapter->fw_work);
3814
3815         if (netif_running(netdev))
3816                 qlcnic_down(adapter, netdev);
3817
3818         qlcnic_detach(adapter);
3819         qlcnic_teardown_intr(adapter);
3820
3821         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3822
3823         pci_save_state(pdev);
3824         pci_disable_device(pdev);
3825
3826         return PCI_ERS_RESULT_NEED_RESET;
3827 }
3828
3829 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
3830 {
3831         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3832                                 PCI_ERS_RESULT_RECOVERED;
3833 }
3834
3835 static void qlcnic_82xx_io_resume(struct pci_dev *pdev)
3836 {
3837         u32 state;
3838         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3839
3840         pci_cleanup_aer_uncorrect_error_status(pdev);
3841         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3842         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3843                                                             &adapter->state))
3844                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3845                                      FW_POLL_DELAY);
3846 }
3847
3848 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3849                                                  pci_channel_state_t state)
3850 {
3851         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3852         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3853
3854         if (hw_ops->io_error_detected) {
3855                 return hw_ops->io_error_detected(pdev, state);
3856         } else {
3857                 dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
3858                 return PCI_ERS_RESULT_DISCONNECT;
3859         }
3860 }
3861
3862 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3863 {
3864         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3865         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3866
3867         if (hw_ops->io_slot_reset) {
3868                 return hw_ops->io_slot_reset(pdev);
3869         } else {
3870                 dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
3871                 return PCI_ERS_RESULT_DISCONNECT;
3872         }
3873 }
3874
3875 static void qlcnic_io_resume(struct pci_dev *pdev)
3876 {
3877         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3878         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3879
3880         if (hw_ops->io_resume)
3881                 hw_ops->io_resume(pdev);
3882         else
3883                 dev_err(&pdev->dev, "AER resume handler not registered.\n");
3884 }
3885
3886
3887 static int
3888 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3889 {
3890         int err;
3891
3892         err = qlcnic_can_start_firmware(adapter);
3893         if (err)
3894                 return err;
3895
3896         err = qlcnic_check_npar_opertional(adapter);
3897         if (err)
3898                 return err;
3899
3900         err = qlcnic_initialize_nic(adapter);
3901         if (err)
3902                 return err;
3903
3904         qlcnic_check_options(adapter);
3905
3906         err = qlcnic_set_eswitch_port_config(adapter);
3907         if (err)
3908                 return err;
3909
3910         adapter->need_fw_reset = 0;
3911
3912         return err;
3913 }
3914
3915 int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt,
3916                           int queue_type)
3917 {
3918         struct net_device *netdev = adapter->netdev;
3919         u8 max_hw_rings = 0;
3920         char buf[8];
3921         int cur_rings;
3922
3923         if (queue_type == QLCNIC_RX_QUEUE) {
3924                 max_hw_rings = adapter->max_sds_rings;
3925                 cur_rings = adapter->drv_sds_rings;
3926                 strcpy(buf, "SDS");
3927         } else if (queue_type == QLCNIC_TX_QUEUE) {
3928                 max_hw_rings = adapter->max_tx_rings;
3929                 cur_rings = adapter->drv_tx_rings;
3930                 strcpy(buf, "Tx");
3931         }
3932
3933         if (!QLCNIC_IS_MSI_FAMILY(adapter)) {
3934                 netdev_err(netdev, "No RSS/TSS support in INT-x mode\n");
3935                 return -EINVAL;
3936         }
3937
3938         if (adapter->flags & QLCNIC_MSI_ENABLED) {
3939                 netdev_err(netdev, "No RSS/TSS support in MSI mode\n");
3940                 return -EINVAL;
3941         }
3942
3943         if (!is_power_of_2(ring_cnt)) {
3944                 netdev_err(netdev, "%s rings value should be a power of 2\n",
3945                            buf);
3946                 return -EINVAL;
3947         }
3948
3949         if (qlcnic_82xx_check(adapter) && (queue_type == QLCNIC_TX_QUEUE) &&
3950             !qlcnic_check_multi_tx(adapter)) {
3951                         netdev_err(netdev, "No Multi Tx queue support\n");
3952                         return -EINVAL;
3953         }
3954
3955         if (ring_cnt > num_online_cpus()) {
3956                 netdev_err(netdev,
3957                            "%s value[%u] should not be higher than, number of online CPUs\n",
3958                            buf, num_online_cpus());
3959                 return -EINVAL;
3960         }
3961
3962         return 0;
3963 }
3964
3965 int qlcnic_setup_rings(struct qlcnic_adapter *adapter)
3966 {
3967         struct net_device *netdev = adapter->netdev;
3968         int err;
3969
3970         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3971                 return -EBUSY;
3972
3973         netif_device_detach(netdev);
3974         if (netif_running(netdev))
3975                 __qlcnic_down(adapter, netdev);
3976
3977         qlcnic_detach(adapter);
3978
3979         if (qlcnic_83xx_check(adapter)) {
3980                 qlcnic_83xx_free_mbx_intr(adapter);
3981                 qlcnic_83xx_enable_mbx_poll(adapter);
3982         }
3983
3984         qlcnic_teardown_intr(adapter);
3985
3986         err = qlcnic_setup_intr(adapter);
3987         if (err) {
3988                 kfree(adapter->msix_entries);
3989                 netdev_err(netdev, "failed to setup interrupt\n");
3990                 return err;
3991         }
3992
3993         netif_set_real_num_tx_queues(netdev, adapter->drv_tx_rings);
3994
3995         if (qlcnic_83xx_check(adapter)) {
3996                 qlcnic_83xx_initialize_nic(adapter, 1);
3997                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3998                 qlcnic_83xx_disable_mbx_poll(adapter);
3999                 if (err) {
4000                         dev_err(&adapter->pdev->dev,
4001                                 "failed to setup mbx interrupt\n");
4002                         goto done;
4003                 }
4004         }
4005
4006         if (netif_running(netdev)) {
4007                 err = qlcnic_attach(adapter);
4008                 if (err)
4009                         goto done;
4010                 err = __qlcnic_up(adapter, netdev);
4011                 if (err)
4012                         goto done;
4013                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
4014         }
4015 done:
4016         netif_device_attach(netdev);
4017         clear_bit(__QLCNIC_RESETTING, &adapter->state);
4018         return err;
4019 }
4020
4021 #ifdef CONFIG_INET
4022
4023 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4024
4025 static void
4026 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4027                         struct net_device *dev, unsigned long event)
4028 {
4029         struct in_device *indev;
4030
4031         indev = in_dev_get(dev);
4032         if (!indev)
4033                 return;
4034
4035         for_ifa(indev) {
4036                 switch (event) {
4037                 case NETDEV_UP:
4038                         qlcnic_config_ipaddr(adapter,
4039                                         ifa->ifa_address, QLCNIC_IP_UP);
4040                         break;
4041                 case NETDEV_DOWN:
4042                         qlcnic_config_ipaddr(adapter,
4043                                         ifa->ifa_address, QLCNIC_IP_DOWN);
4044                         break;
4045                 default:
4046                         break;
4047                 }
4048         } endfor_ifa(indev);
4049
4050         in_dev_put(indev);
4051 }
4052
4053 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4054 {
4055         struct qlcnic_adapter *adapter = netdev_priv(netdev);
4056         struct net_device *dev;
4057         u16 vid;
4058
4059         qlcnic_config_indev_addr(adapter, netdev, event);
4060
4061         rcu_read_lock();
4062         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
4063                 dev = __vlan_find_dev_deep(netdev, htons(ETH_P_8021Q), vid);
4064                 if (!dev)
4065                         continue;
4066                 qlcnic_config_indev_addr(adapter, dev, event);
4067         }
4068         rcu_read_unlock();
4069 }
4070
4071 static int qlcnic_netdev_event(struct notifier_block *this,
4072                                  unsigned long event, void *ptr)
4073 {
4074         struct qlcnic_adapter *adapter;
4075         struct net_device *dev = netdev_notifier_info_to_dev(ptr);
4076
4077 recheck:
4078         if (dev == NULL)
4079                 goto done;
4080
4081         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4082                 dev = vlan_dev_real_dev(dev);
4083                 goto recheck;
4084         }
4085
4086         if (!is_qlcnic_netdev(dev))
4087                 goto done;
4088
4089         adapter = netdev_priv(dev);
4090
4091         if (!adapter)
4092                 goto done;
4093
4094         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4095                 goto done;
4096
4097         qlcnic_config_indev_addr(adapter, dev, event);
4098 done:
4099         return NOTIFY_DONE;
4100 }
4101
4102 static int
4103 qlcnic_inetaddr_event(struct notifier_block *this,
4104                 unsigned long event, void *ptr)
4105 {
4106         struct qlcnic_adapter *adapter;
4107         struct net_device *dev;
4108
4109         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4110
4111         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4112
4113 recheck:
4114         if (dev == NULL)
4115                 goto done;
4116
4117         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4118                 dev = vlan_dev_real_dev(dev);
4119                 goto recheck;
4120         }
4121
4122         if (!is_qlcnic_netdev(dev))
4123                 goto done;
4124
4125         adapter = netdev_priv(dev);
4126
4127         if (!adapter)
4128                 goto done;
4129
4130         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4131                 goto done;
4132
4133         switch (event) {
4134         case NETDEV_UP:
4135                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4136
4137                 break;
4138         case NETDEV_DOWN:
4139                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4140
4141                 break;
4142         default:
4143                 break;
4144         }
4145
4146 done:
4147         return NOTIFY_DONE;
4148 }
4149
4150 static struct notifier_block    qlcnic_netdev_cb = {
4151         .notifier_call = qlcnic_netdev_event,
4152 };
4153
4154 static struct notifier_block qlcnic_inetaddr_cb = {
4155         .notifier_call = qlcnic_inetaddr_event,
4156 };
4157 #else
4158 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4159 { }
4160 #endif
4161 static const struct pci_error_handlers qlcnic_err_handler = {
4162         .error_detected = qlcnic_io_error_detected,
4163         .slot_reset = qlcnic_io_slot_reset,
4164         .resume = qlcnic_io_resume,
4165 };
4166
4167 static struct pci_driver qlcnic_driver = {
4168         .name = qlcnic_driver_name,
4169         .id_table = qlcnic_pci_tbl,
4170         .probe = qlcnic_probe,
4171         .remove = qlcnic_remove,
4172 #ifdef CONFIG_PM
4173         .suspend = qlcnic_suspend,
4174         .resume = qlcnic_resume,
4175 #endif
4176         .shutdown = qlcnic_shutdown,
4177         .err_handler = &qlcnic_err_handler,
4178 #ifdef CONFIG_QLCNIC_SRIOV
4179         .sriov_configure = qlcnic_pci_sriov_configure,
4180 #endif
4181
4182 };
4183
4184 static int __init qlcnic_init_module(void)
4185 {
4186         int ret;
4187
4188         printk(KERN_INFO "%s\n", qlcnic_driver_string);
4189
4190 #ifdef CONFIG_INET
4191         register_netdevice_notifier(&qlcnic_netdev_cb);
4192         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4193 #endif
4194
4195         ret = pci_register_driver(&qlcnic_driver);
4196         if (ret) {
4197 #ifdef CONFIG_INET
4198                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4199                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4200 #endif
4201         }
4202
4203         return ret;
4204 }
4205
4206 module_init(qlcnic_init_module);
4207
4208 static void __exit qlcnic_exit_module(void)
4209 {
4210         pci_unregister_driver(&qlcnic_driver);
4211
4212 #ifdef CONFIG_INET
4213         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4214         unregister_netdevice_notifier(&qlcnic_netdev_cb);
4215 #endif
4216 }
4217
4218 module_exit(qlcnic_exit_module);