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         for (vector = 0; vector < num_msix; vector++)
 690                 adapter->msix_entries[vector].entry = vector;
 691
 692 restore:
 693         err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
 694         if (err > 0) {
 695                 if (!adapter->drv_tss_rings && !adapter->drv_rss_rings)
 696                         return -ENOSPC;
 697
 698                 netdev_info(adapter->netdev,
 699                             "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
 700                             num_msix, err);
 701
 702                 num_msix = adapter->drv_tx_rings + adapter->drv_sds_rings;
 703
 704                 /* Set rings to 0 so we can restore original TSS/RSS count */
 705                 adapter->drv_tss_rings = 0;
 706                 adapter->drv_rss_rings = 0;
 707
 708                 if (qlcnic_83xx_check(adapter))
 709                         num_msix += 1;
 710
 711                 netdev_info(adapter->netdev,
 712                             "Restoring %d Tx, %d SDS rings for total %d vectors.\n",
 713                             adapter->drv_tx_rings, adapter->drv_sds_rings,
 714                             num_msix);
 715
 716                 goto restore;
 717         } else if (err < 0) {
 718                 return err;
 719         }
 720
 721         adapter->ahw->num_msix = num_msix;
 722         if (adapter->drv_tss_rings > 0)
 723                 adapter->drv_tx_rings = adapter->drv_tss_rings;
 724
 725         if (adapter->drv_rss_rings > 0)
 726                 adapter->drv_sds_rings = adapter->drv_rss_rings;
 727
 728         return 0;
 729 }
 730
 731 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 732 {
 733         struct pci_dev *pdev = adapter->pdev;
 734         int err, vector;
 735
 736         if (!adapter->msix_entries) {
 737                 adapter->msix_entries = kcalloc(num_msix,
 738                                                 sizeof(struct msix_entry),
 739                                                 GFP_KERNEL);
 740                 if (!adapter->msix_entries)
 741                         return -ENOMEM;
 742         }
 743
 744         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 745
 746         if (adapter->ahw->msix_supported) {
 747 enable_msix:
 748                 for (vector = 0; vector < num_msix; vector++)
 749                         adapter->msix_entries[vector].entry = vector;
 750
 751                 err = pci_enable_msix_range(pdev,
 752                                             adapter->msix_entries, 1, num_msix);
 753
 754                 if (err == num_msix) {
 755                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 756                         adapter->ahw->num_msix = num_msix;
 757                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 758                         return 0;
 759                 } else if (err > 0) {
 760                         pci_disable_msix(pdev);
 761
 762                         dev_info(&pdev->dev,
 763                                  "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
 764                                  num_msix, err);
 765
 766                         if (qlcnic_82xx_check(adapter)) {
 767                                 num_msix = rounddown_pow_of_two(err);
 768                                 if (err < QLCNIC_82XX_MINIMUM_VECTOR)
 769                                         return -ENOSPC;
 770                         } else {
 771                                 num_msix = rounddown_pow_of_two(err - 1);
 772                                 num_msix += 1;
 773                                 if (err < QLCNIC_83XX_MINIMUM_VECTOR)
 774                                         return -ENOSPC;
 775                         }
 776
 777                         if (qlcnic_82xx_check(adapter) &&
 778                             !qlcnic_check_multi_tx(adapter)) {
 779                                 adapter->drv_sds_rings = num_msix;
 780                                 adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
 781                         } else {
 782                                 /* Distribute vectors equally */
 783                                 adapter->drv_tx_rings = num_msix / 2;
 784                                 adapter->drv_sds_rings = adapter->drv_tx_rings;
 785                         }
 786
 787                         if (num_msix) {
 788                                 dev_info(&pdev->dev,
 789                                          "Trying to allocate %d MSI-X interrupt vectors\n",
 790                                          num_msix);
 791                                 goto enable_msix;
 792                         }
 793                 } else {
 794                         dev_info(&pdev->dev,
 795                                  "Unable to allocate %d MSI-X vectors, err=%d\n",
 796                                  num_msix, err);
 797                         return err;
 798                 }
 799         }
 800
 801         return -EIO;
 802 }
 803
 804 static int qlcnic_82xx_calculate_msix_vector(struct qlcnic_adapter *adapter)
 805 {
 806         int num_msix;
 807
 808         num_msix = adapter->drv_sds_rings;
 809
 810         if (qlcnic_check_multi_tx(adapter))
 811                 num_msix += adapter->drv_tx_rings;
 812         else
 813                 num_msix += QLCNIC_SINGLE_RING;
 814
 815         return num_msix;
 816 }
 817
 818 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
 819 {
 820         int err = 0;
 821         u32 offset, mask_reg;
 822         const struct qlcnic_legacy_intr_set *legacy_intrp;
 823         struct qlcnic_hardware_context *ahw = adapter->ahw;
 824         struct pci_dev *pdev = adapter->pdev;
 825
 826         if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
 827                 adapter->flags |= QLCNIC_MSI_ENABLED;
 828                 offset = msi_tgt_status[adapter->ahw->pci_func];
 829                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
 830                                                             offset);
 831                 dev_info(&pdev->dev, "using msi interrupts\n");
 832                 adapter->msix_entries[0].vector = pdev->irq;
 833                 return err;
 834         }
 835
 836         if (qlcnic_use_msi || qlcnic_use_msi_x)
 837                 return -EOPNOTSUPP;
 838
 839         legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
 840         adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
 841         offset = legacy_intrp->tgt_status_reg;
 842         adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
 843         mask_reg = legacy_intrp->tgt_mask_reg;
 844         adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
 845         adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
 846         adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
 847         dev_info(&pdev->dev, "using legacy interrupts\n");
 848         adapter->msix_entries[0].vector = pdev->irq;
 849         return err;
 850 }
 851
 852 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter)
 853 {
 854         int num_msix, err = 0;
 855
 856         if (adapter->flags & QLCNIC_TSS_RSS) {
 857                 err = qlcnic_setup_tss_rss_intr(adapter);
 858                 if (err < 0)
 859                         return err;
 860                 num_msix = adapter->ahw->num_msix;
 861         } else {
 862                 num_msix = qlcnic_82xx_calculate_msix_vector(adapter);
 863
 864                 err = qlcnic_enable_msix(adapter, num_msix);
 865                 if (err == -ENOMEM)
 866                         return err;
 867
 868                 if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
 869                         qlcnic_disable_multi_tx(adapter);
 870                         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
 871
 872                         err = qlcnic_enable_msi_legacy(adapter);
 873                         if (err)
 874                                 return err;
 875                 }
 876         }
 877
 878         return 0;
 879 }
 880
 881 int qlcnic_82xx_mq_intrpt(struct qlcnic_adapter *adapter, int op_type)
 882 {
 883         struct qlcnic_hardware_context *ahw = adapter->ahw;
 884         int err, i;
 885
 886         if (qlcnic_check_multi_tx(adapter) &&
 887             !ahw->diag_test &&
 888             (adapter->flags & QLCNIC_MSIX_ENABLED)) {
 889                 ahw->intr_tbl = vzalloc(ahw->num_msix *
 890                                         sizeof(struct qlcnic_intrpt_config));
 891                 if (!ahw->intr_tbl)
 892                         return -ENOMEM;
 893
 894                 for (i = 0; i < ahw->num_msix; i++) {
 895                         ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
 896                         ahw->intr_tbl[i].id = i;
 897                         ahw->intr_tbl[i].src = 0;
 898                 }
 899
 900                 err = qlcnic_82xx_config_intrpt(adapter, 1);
 901                 if (err)
 902                         dev_err(&adapter->pdev->dev,
 903                                 "Failed to configure Interrupt for %d vector\n",
 904                                 ahw->num_msix);
 905                 return err;
 906         }
 907
 908         return 0;
 909 }
 910
 911 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 912 {
 913         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 914                 pci_disable_msix(adapter->pdev);
 915         if (adapter->flags & QLCNIC_MSI_ENABLED)
 916                 pci_disable_msi(adapter->pdev);
 917
 918         kfree(adapter->msix_entries);
 919         adapter->msix_entries = NULL;
 920
 921         if (adapter->ahw->intr_tbl) {
 922                 vfree(adapter->ahw->intr_tbl);
 923                 adapter->ahw->intr_tbl = NULL;
 924         }
 925 }
 926
 927 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
 928 {
 929         if (ahw->pci_base0 != NULL)
 930                 iounmap(ahw->pci_base0);
 931 }
 932
 933 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
 934 {
 935         struct qlcnic_hardware_context *ahw = adapter->ahw;
 936         struct qlcnic_pci_info *pci_info;
 937         int ret;
 938
 939         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 940                 switch (ahw->port_type) {
 941                 case QLCNIC_GBE:
 942                         ahw->total_nic_func = QLCNIC_NIU_MAX_GBE_PORTS;
 943                         break;
 944                 case QLCNIC_XGBE:
 945                         ahw->total_nic_func = QLCNIC_NIU_MAX_XG_PORTS;
 946                         break;
 947                 }
 948                 return 0;
 949         }
 950
 951         if (ahw->op_mode == QLCNIC_MGMT_FUNC)
 952                 return 0;
 953
 954         pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
 955         if (!pci_info)
 956                 return -ENOMEM;
 957
 958         ret = qlcnic_get_pci_info(adapter, pci_info);
 959         kfree(pci_info);
 960         return ret;
 961 }
 962
 963 static bool qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter *adapter)
 964 {
 965         bool ret = false;
 966
 967         if (qlcnic_84xx_check(adapter)) {
 968                 ret = true;
 969         } else if (qlcnic_83xx_check(adapter)) {
 970                 if (adapter->ahw->extra_capability[0] &
 971                     QLCNIC_FW_CAPABILITY_2_PER_PORT_ESWITCH_CFG)
 972                         ret = true;
 973                 else
 974                         ret = false;
 975         }
 976
 977         return ret;
 978 }
 979
 980 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 981 {
 982         struct qlcnic_hardware_context *ahw = adapter->ahw;
 983         struct qlcnic_pci_info *pci_info;
 984         int i, id = 0, ret = 0, j = 0;
 985         u16 act_pci_func;
 986         u8 pfn;
 987
 988         pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
 989         if (!pci_info)
 990                 return -ENOMEM;
 991
 992         ret = qlcnic_get_pci_info(adapter, pci_info);
 993         if (ret)
 994                 goto err_pci_info;
 995
 996         act_pci_func = ahw->total_nic_func;
 997
 998         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
 999                                  act_pci_func, GFP_KERNEL);
1000         if (!adapter->npars) {
1001                 ret = -ENOMEM;
1002                 goto err_pci_info;
1003         }
1004
1005         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
1006                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
1007         if (!adapter->eswitch) {
1008                 ret = -ENOMEM;
1009                 goto err_npars;
1010         }
1011
1012         for (i = 0; i < ahw->max_vnic_func; i++) {
1013                 pfn = pci_info[i].id;
1014
1015                 if (pfn >= ahw->max_vnic_func) {
1016                         ret = QL_STATUS_INVALID_PARAM;
1017                         goto err_eswitch;
1018                 }
1019
1020                 if (!pci_info[i].active ||
1021                     (pci_info[i].type != QLCNIC_TYPE_NIC))
1022                         continue;
1023
1024                 if (qlcnic_port_eswitch_cfg_capability(adapter)) {
1025                         if (!qlcnic_83xx_set_port_eswitch_status(adapter, pfn,
1026                                                                  &id))
1027                                 adapter->npars[j].eswitch_status = true;
1028                         else
1029                                 continue;
1030                 } else {
1031                         adapter->npars[j].eswitch_status = true;
1032                 }
1033
1034                 adapter->npars[j].pci_func = pfn;
1035                 adapter->npars[j].active = (u8)pci_info[i].active;
1036                 adapter->npars[j].type = (u8)pci_info[i].type;
1037                 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
1038                 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
1039                 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
1040
1041                 memcpy(&adapter->npars[j].mac, &pci_info[i].mac, ETH_ALEN);
1042                 j++;
1043         }
1044
1045         /* Update eSwitch status for adapters without per port eSwitch
1046          * configuration capability
1047          */
1048         if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
1049                 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
1050                         adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
1051         }
1052
1053         kfree(pci_info);
1054         return 0;
1055
1056 err_eswitch:
1057         kfree(adapter->eswitch);
1058         adapter->eswitch = NULL;
1059 err_npars:
1060         kfree(adapter->npars);
1061         adapter->npars = NULL;
1062 err_pci_info:
1063         kfree(pci_info);
1064
1065         return ret;
1066 }
1067
1068 static int
1069 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
1070 {
1071         u8 id;
1072         int ret;
1073         u32 data = QLCNIC_MGMT_FUNC;
1074         struct qlcnic_hardware_context *ahw = adapter->ahw;
1075
1076         ret = qlcnic_api_lock(adapter);
1077         if (ret)
1078                 goto err_lock;
1079
1080         id = ahw->pci_func;
1081         data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1082         data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
1083                QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
1084         QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
1085         qlcnic_api_unlock(adapter);
1086 err_lock:
1087         return ret;
1088 }
1089
1090 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
1091                             const struct pci_device_id *ent)
1092 {
1093         u32 op_mode, priv_level;
1094
1095         /* Determine FW API version */
1096         adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
1097                                                            QLCNIC_FW_API);
1098
1099         /* Find PCI function number */
1100         qlcnic_get_func_no(adapter);
1101
1102         /* Determine function privilege level */
1103         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1104         if (op_mode == QLC_DEV_DRV_DEFAULT)
1105                 priv_level = QLCNIC_MGMT_FUNC;
1106         else
1107                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1108
1109         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
1110                 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
1111                 dev_info(&adapter->pdev->dev,
1112                         "HAL Version: %d Non Privileged function\n",
1113                          adapter->ahw->fw_hal_version);
1114                 adapter->nic_ops = &qlcnic_vf_ops;
1115         } else
1116                 adapter->nic_ops = &qlcnic_ops;
1117 }
1118
1119 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
1120 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
1121 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
1122 {
1123         switch (dev_id) {
1124         case PCI_DEVICE_ID_QLOGIC_QLE824X:
1125                 *bar = QLCNIC_82XX_BAR0_LENGTH;
1126                 break;
1127         case PCI_DEVICE_ID_QLOGIC_QLE834X:
1128         case PCI_DEVICE_ID_QLOGIC_QLE844X:
1129         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
1130         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
1131                 *bar = QLCNIC_83XX_BAR0_LENGTH;
1132                 break;
1133         default:
1134                 *bar = 0;
1135         }
1136 }
1137
1138 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
1139                                 struct qlcnic_hardware_context *ahw)
1140 {
1141         u32 offset;
1142         void __iomem *mem_ptr0 = NULL;
1143         unsigned long mem_len, pci_len0 = 0, bar0_len;
1144
1145         /* remap phys address */
1146         mem_len = pci_resource_len(pdev, 0);
1147
1148         qlcnic_get_bar_length(pdev->device, &bar0_len);
1149         if (mem_len >= bar0_len) {
1150
1151                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
1152                 if (mem_ptr0 == NULL) {
1153                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
1154                         return -EIO;
1155                 }
1156                 pci_len0 = mem_len;
1157         } else {
1158                 return -EIO;
1159         }
1160
1161         dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
1162
1163         ahw->pci_base0 = mem_ptr0;
1164         ahw->pci_len0 = pci_len0;
1165         offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
1166         qlcnic_get_ioaddr(ahw, offset);
1167
1168         return 0;
1169 }
1170
1171 static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
1172                                          int index)
1173 {
1174         struct pci_dev *pdev = adapter->pdev;
1175         unsigned short subsystem_vendor;
1176         bool ret = true;
1177
1178         subsystem_vendor = pdev->subsystem_vendor;
1179
1180         if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
1181             pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1182                 if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
1183                     qlcnic_boards[index].sub_device == pdev->subsystem_device)
1184                         ret = true;
1185                 else
1186                         ret = false;
1187         }
1188
1189         return ret;
1190 }
1191
1192 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
1193 {
1194         struct pci_dev *pdev = adapter->pdev;
1195         int i, found = 0;
1196
1197         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1198                 if (qlcnic_boards[i].vendor == pdev->vendor &&
1199                     qlcnic_boards[i].device == pdev->device &&
1200                     qlcnic_validate_subsystem_id(adapter, i)) {
1201                         found = 1;
1202                         break;
1203                 }
1204         }
1205
1206         if (!found)
1207                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
1208         else
1209                 sprintf(name, "%pM: %s" , adapter->mac_addr,
1210                         qlcnic_boards[i].short_name);
1211 }
1212
1213 static void
1214 qlcnic_check_options(struct qlcnic_adapter *adapter)
1215 {
1216         int err;
1217         u32 fw_major, fw_minor, fw_build, prev_fw_version;
1218         struct pci_dev *pdev = adapter->pdev;
1219         struct qlcnic_hardware_context *ahw = adapter->ahw;
1220         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
1221
1222         prev_fw_version = adapter->fw_version;
1223
1224         fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
1225         fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
1226         fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
1227
1228         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
1229
1230         err = qlcnic_get_board_info(adapter);
1231         if (err) {
1232                 dev_err(&pdev->dev, "Error getting board config info.\n");
1233                 return;
1234         }
1235         if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
1236                 if (fw_dump->tmpl_hdr == NULL ||
1237                                 adapter->fw_version > prev_fw_version) {
1238                         if (fw_dump->tmpl_hdr)
1239                                 vfree(fw_dump->tmpl_hdr);
1240                         if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1241                                 dev_info(&pdev->dev,
1242                                         "Supports FW dump capability\n");
1243                 }
1244         }
1245
1246         dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
1247                  QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
1248
1249         if (adapter->ahw->port_type == QLCNIC_XGBE) {
1250                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1251                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
1252                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
1253                 } else {
1254                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
1255                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
1256                 }
1257
1258                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1259                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1260
1261         } else if (adapter->ahw->port_type == QLCNIC_GBE) {
1262                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
1263                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1264                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1265                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
1266         }
1267
1268         adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
1269
1270         adapter->num_txd = MAX_CMD_DESCRIPTORS;
1271
1272         adapter->max_rds_rings = MAX_RDS_RINGS;
1273 }
1274
1275 static int
1276 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
1277 {
1278         struct qlcnic_info nic_info;
1279         int err = 0;
1280
1281         memset(&nic_info, 0, sizeof(struct qlcnic_info));
1282         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
1283         if (err)
1284                 return err;
1285
1286         adapter->ahw->physical_port = (u8)nic_info.phys_port;
1287         adapter->ahw->switch_mode = nic_info.switch_mode;
1288         adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
1289         adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
1290         adapter->ahw->capabilities = nic_info.capabilities;
1291
1292         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1293                 u32 temp;
1294                 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
1295                 if (err == -EIO)
1296                         return err;
1297                 adapter->ahw->extra_capability[0] = temp;
1298         } else {
1299                 adapter->ahw->extra_capability[0] = 0;
1300         }
1301
1302         adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1303         adapter->ahw->max_mtu = nic_info.max_mtu;
1304
1305         if (adapter->ahw->capabilities & BIT_6) {
1306                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1307                 adapter->ahw->nic_mode = QLCNIC_VNIC_MODE;
1308                 adapter->max_tx_rings = QLCNIC_MAX_HW_VNIC_TX_RINGS;
1309                 adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
1310
1311                 dev_info(&adapter->pdev->dev, "vNIC mode enabled.\n");
1312         } else {
1313                 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1314                 adapter->max_tx_rings = QLCNIC_MAX_HW_TX_RINGS;
1315                 adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
1316                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1317         }
1318
1319         return err;
1320 }
1321
1322 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1323                             struct qlcnic_esw_func_cfg *esw_cfg)
1324 {
1325         if (esw_cfg->discard_tagged)
1326                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1327         else
1328                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1329
1330         if (esw_cfg->vlan_id) {
1331                 adapter->rx_pvid = esw_cfg->vlan_id;
1332                 adapter->tx_pvid = esw_cfg->vlan_id;
1333         } else {
1334                 adapter->rx_pvid = 0;
1335                 adapter->tx_pvid = 0;
1336         }
1337 }
1338
1339 static int
1340 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1341 {
1342         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1343         int err;
1344
1345         if (qlcnic_sriov_vf_check(adapter)) {
1346                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1347                 if (err) {
1348                         netdev_err(netdev,
1349                                    "Cannot add VLAN filter for VLAN id %d, err=%d",
1350                                    vid, err);
1351                         return err;
1352                 }
1353         }
1354
1355         set_bit(vid, adapter->vlans);
1356         return 0;
1357 }
1358
1359 static int
1360 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1361 {
1362         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1363         int err;
1364
1365         if (qlcnic_sriov_vf_check(adapter)) {
1366                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1367                 if (err) {
1368                         netdev_err(netdev,
1369                                    "Cannot delete VLAN filter for VLAN id %d, err=%d",
1370                                    vid, err);
1371                         return err;
1372                 }
1373         }
1374
1375         qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1376         clear_bit(vid, adapter->vlans);
1377         return 0;
1378 }
1379
1380 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1381                                       struct qlcnic_esw_func_cfg *esw_cfg)
1382 {
1383         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1384                                 QLCNIC_PROMISC_DISABLED);
1385
1386         if (esw_cfg->mac_anti_spoof)
1387                 adapter->flags |= QLCNIC_MACSPOOF;
1388
1389         if (!esw_cfg->mac_override)
1390                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1391
1392         if (!esw_cfg->promisc_mode)
1393                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1394 }
1395
1396 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1397 {
1398         struct qlcnic_esw_func_cfg esw_cfg;
1399
1400         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1401                 return 0;
1402
1403         esw_cfg.pci_func = adapter->ahw->pci_func;
1404         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1405                         return -EIO;
1406         qlcnic_set_vlan_config(adapter, &esw_cfg);
1407         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1408         qlcnic_set_netdev_features(adapter, &esw_cfg);
1409
1410         return 0;
1411 }
1412
1413 void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1414                                 struct qlcnic_esw_func_cfg *esw_cfg)
1415 {
1416         struct net_device *netdev = adapter->netdev;
1417
1418         if (qlcnic_83xx_check(adapter))
1419                 return;
1420
1421         adapter->offload_flags = esw_cfg->offload_flags;
1422         adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1423         netdev_update_features(netdev);
1424         adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1425 }
1426
1427 static int
1428 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1429 {
1430         u32 op_mode, priv_level;
1431         int err = 0;
1432
1433         err = qlcnic_initialize_nic(adapter);
1434         if (err)
1435                 return err;
1436
1437         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1438                 return 0;
1439
1440         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1441         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1442
1443         if (op_mode == QLC_DEV_DRV_DEFAULT)
1444                 priv_level = QLCNIC_MGMT_FUNC;
1445         else
1446                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1447
1448         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1449                 if (priv_level == QLCNIC_MGMT_FUNC) {
1450                         adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1451                         err = qlcnic_init_pci_info(adapter);
1452                         if (err)
1453                                 return err;
1454                         /* Set privilege level for other functions */
1455                         qlcnic_set_function_modes(adapter);
1456                         dev_info(&adapter->pdev->dev,
1457                                 "HAL Version: %d, Management function\n",
1458                                  adapter->ahw->fw_hal_version);
1459                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1460                         adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1461                         dev_info(&adapter->pdev->dev,
1462                                 "HAL Version: %d, Privileged function\n",
1463                                  adapter->ahw->fw_hal_version);
1464                 }
1465         } else {
1466                 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1467         }
1468
1469         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1470
1471         return err;
1472 }
1473
1474 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1475 {
1476         struct qlcnic_esw_func_cfg esw_cfg;
1477         struct qlcnic_npar_info *npar;
1478         u8 i;
1479
1480         if (adapter->need_fw_reset)
1481                 return 0;
1482
1483         for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1484                 if (!adapter->npars[i].eswitch_status)
1485                         continue;
1486
1487                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1488                 esw_cfg.pci_func = adapter->npars[i].pci_func;
1489                 esw_cfg.mac_override = BIT_0;
1490                 esw_cfg.promisc_mode = BIT_0;
1491                 if (qlcnic_82xx_check(adapter)) {
1492                         esw_cfg.offload_flags = BIT_0;
1493                         if (QLCNIC_IS_TSO_CAPABLE(adapter))
1494                                 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1495                 }
1496                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1497                         return -EIO;
1498                 npar = &adapter->npars[i];
1499                 npar->pvid = esw_cfg.vlan_id;
1500                 npar->mac_override = esw_cfg.mac_override;
1501                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1502                 npar->discard_tagged = esw_cfg.discard_tagged;
1503                 npar->promisc_mode = esw_cfg.promisc_mode;
1504                 npar->offload_flags = esw_cfg.offload_flags;
1505         }
1506
1507         return 0;
1508 }
1509
1510
1511 static int
1512 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1513                         struct qlcnic_npar_info *npar, int pci_func)
1514 {
1515         struct qlcnic_esw_func_cfg esw_cfg;
1516         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1517         esw_cfg.pci_func = pci_func;
1518         esw_cfg.vlan_id = npar->pvid;
1519         esw_cfg.mac_override = npar->mac_override;
1520         esw_cfg.discard_tagged = npar->discard_tagged;
1521         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1522         esw_cfg.offload_flags = npar->offload_flags;
1523         esw_cfg.promisc_mode = npar->promisc_mode;
1524         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1525                 return -EIO;
1526
1527         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1528         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1529                 return -EIO;
1530
1531         return 0;
1532 }
1533
1534 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1535 {
1536         int i, err;
1537         struct qlcnic_npar_info *npar;
1538         struct qlcnic_info nic_info;
1539         u8 pci_func;
1540
1541         if (qlcnic_82xx_check(adapter))
1542                 if (!adapter->need_fw_reset)
1543                         return 0;
1544
1545         /* Set the NPAR config data after FW reset */
1546         for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1547                 npar = &adapter->npars[i];
1548                 pci_func = npar->pci_func;
1549                 if (!adapter->npars[i].eswitch_status)
1550                         continue;
1551
1552                 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1553                 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1554                 if (err)
1555                         return err;
1556                 nic_info.min_tx_bw = npar->min_bw;
1557                 nic_info.max_tx_bw = npar->max_bw;
1558                 err = qlcnic_set_nic_info(adapter, &nic_info);
1559                 if (err)
1560                         return err;
1561
1562                 if (npar->enable_pm) {
1563                         err = qlcnic_config_port_mirroring(adapter,
1564                                                            npar->dest_npar, 1,
1565                                                            pci_func);
1566                         if (err)
1567                                 return err;
1568                 }
1569                 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1570                 if (err)
1571                         return err;
1572         }
1573         return 0;
1574 }
1575
1576 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1577 {
1578         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1579         u32 npar_state;
1580
1581         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1582                 return 0;
1583
1584         npar_state = QLC_SHARED_REG_RD32(adapter,
1585                                          QLCNIC_CRB_DEV_NPAR_STATE);
1586         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1587                 msleep(1000);
1588                 npar_state = QLC_SHARED_REG_RD32(adapter,
1589                                                  QLCNIC_CRB_DEV_NPAR_STATE);
1590         }
1591         if (!npar_opt_timeo) {
1592                 dev_err(&adapter->pdev->dev,
1593                         "Waiting for NPAR state to operational timeout\n");
1594                 return -EIO;
1595         }
1596         return 0;
1597 }
1598
1599 static int
1600 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1601 {
1602         int err;
1603
1604         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1605             adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1606                 return 0;
1607
1608         err = qlcnic_set_default_offload_settings(adapter);
1609         if (err)
1610                 return err;
1611
1612         err = qlcnic_reset_npar_config(adapter);
1613         if (err)
1614                 return err;
1615
1616         qlcnic_dev_set_npar_ready(adapter);
1617
1618         return err;
1619 }
1620
1621 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1622 {
1623         int err;
1624
1625         err = qlcnic_can_start_firmware(adapter);
1626         if (err < 0)
1627                 return err;
1628         else if (!err)
1629                 goto check_fw_status;
1630
1631         if (qlcnic_load_fw_file)
1632                 qlcnic_request_firmware(adapter);
1633         else {
1634                 err = qlcnic_check_flash_fw_ver(adapter);
1635                 if (err)
1636                         goto err_out;
1637
1638                 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1639         }
1640
1641         err = qlcnic_need_fw_reset(adapter);
1642         if (err == 0)
1643                 goto check_fw_status;
1644
1645         err = qlcnic_pinit_from_rom(adapter);
1646         if (err)
1647                 goto err_out;
1648
1649         err = qlcnic_load_firmware(adapter);
1650         if (err)
1651                 goto err_out;
1652
1653         qlcnic_release_firmware(adapter);
1654         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1655
1656 check_fw_status:
1657         err = qlcnic_check_fw_status(adapter);
1658         if (err)
1659                 goto err_out;
1660
1661         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1662         qlcnic_idc_debug_info(adapter, 1);
1663         err = qlcnic_check_eswitch_mode(adapter);
1664         if (err) {
1665                 dev_err(&adapter->pdev->dev,
1666                         "Memory allocation failed for eswitch\n");
1667                 goto err_out;
1668         }
1669         err = qlcnic_set_mgmt_operations(adapter);
1670         if (err)
1671                 goto err_out;
1672
1673         qlcnic_check_options(adapter);
1674         adapter->need_fw_reset = 0;
1675
1676         qlcnic_release_firmware(adapter);
1677         return 0;
1678
1679 err_out:
1680         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1681         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1682
1683         qlcnic_release_firmware(adapter);
1684         return err;
1685 }
1686
1687 static int
1688 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1689 {
1690         irq_handler_t handler;
1691         struct qlcnic_host_sds_ring *sds_ring;
1692         struct qlcnic_host_tx_ring *tx_ring;
1693         int err, ring, num_sds_rings;
1694
1695         unsigned long flags = 0;
1696         struct net_device *netdev = adapter->netdev;
1697         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1698
1699         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1700                 if (qlcnic_82xx_check(adapter))
1701                         handler = qlcnic_tmp_intr;
1702                 else
1703                         handler = qlcnic_83xx_tmp_intr;
1704                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1705                         flags |= IRQF_SHARED;
1706
1707         } else {
1708                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1709                         handler = qlcnic_msix_intr;
1710                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1711                         handler = qlcnic_msi_intr;
1712                 else {
1713                         flags |= IRQF_SHARED;
1714                         if (qlcnic_82xx_check(adapter))
1715                                 handler = qlcnic_intr;
1716                         else
1717                                 handler = qlcnic_83xx_intr;
1718                 }
1719         }
1720         adapter->irq = netdev->irq;
1721
1722         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1723                 if (qlcnic_82xx_check(adapter) ||
1724                     (qlcnic_83xx_check(adapter) &&
1725                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1726                         num_sds_rings = adapter->drv_sds_rings;
1727                         for (ring = 0; ring < num_sds_rings; ring++) {
1728                                 sds_ring = &recv_ctx->sds_rings[ring];
1729                                 if (qlcnic_82xx_check(adapter) &&
1730                                     !qlcnic_check_multi_tx(adapter) &&
1731                                     (ring == (num_sds_rings - 1))) {
1732                                         if (!(adapter->flags &
1733                                               QLCNIC_MSIX_ENABLED))
1734                                                 snprintf(sds_ring->name,
1735                                                          sizeof(sds_ring->name),
1736                                                          "qlcnic");
1737                                         else
1738                                                 snprintf(sds_ring->name,
1739                                                          sizeof(sds_ring->name),
1740                                                          "%s-tx-0-rx-%d",
1741                                                          netdev->name, ring);
1742                                 } else {
1743                                         snprintf(sds_ring->name,
1744                                                  sizeof(sds_ring->name),
1745                                                  "%s-rx-%d",
1746                                                  netdev->name, ring);
1747                                 }
1748                                 err = request_irq(sds_ring->irq, handler, flags,
1749                                                   sds_ring->name, sds_ring);
1750                                 if (err)
1751                                         return err;
1752                         }
1753                 }
1754                 if ((qlcnic_82xx_check(adapter) &&
1755                      qlcnic_check_multi_tx(adapter)) ||
1756                     (qlcnic_83xx_check(adapter) &&
1757                      (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1758                      !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
1759                         handler = qlcnic_msix_tx_intr;
1760                         for (ring = 0; ring < adapter->drv_tx_rings;
1761                              ring++) {
1762                                 tx_ring = &adapter->tx_ring[ring];
1763                                 snprintf(tx_ring->name, sizeof(tx_ring->name),
1764                                          "%s-tx-%d", netdev->name, ring);
1765                                 err = request_irq(tx_ring->irq, handler, flags,
1766                                                   tx_ring->name, tx_ring);
1767                                 if (err)
1768                                         return err;
1769                         }
1770                 }
1771         }
1772         return 0;
1773 }
1774
1775 static void
1776 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1777 {
1778         int ring;
1779         struct qlcnic_host_sds_ring *sds_ring;
1780         struct qlcnic_host_tx_ring *tx_ring;
1781
1782         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1783
1784         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1785                 if (qlcnic_82xx_check(adapter) ||
1786                     (qlcnic_83xx_check(adapter) &&
1787                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1788                         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1789                                 sds_ring = &recv_ctx->sds_rings[ring];
1790                                 free_irq(sds_ring->irq, sds_ring);
1791                         }
1792                 }
1793                 if ((qlcnic_83xx_check(adapter) &&
1794                      !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
1795                     (qlcnic_82xx_check(adapter) &&
1796                      qlcnic_check_multi_tx(adapter))) {
1797                         for (ring = 0; ring < adapter->drv_tx_rings;
1798                              ring++) {
1799                                 tx_ring = &adapter->tx_ring[ring];
1800                                 if (tx_ring->irq)
1801                                         free_irq(tx_ring->irq, tx_ring);
1802                         }
1803                 }
1804         }
1805 }
1806
1807 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1808 {
1809         u32 capab = 0;
1810
1811         if (qlcnic_82xx_check(adapter)) {
1812                 if (adapter->ahw->extra_capability[0] &
1813                     QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1814                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1815         } else {
1816                 capab = adapter->ahw->capabilities;
1817                 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1818                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1819         }
1820 }
1821
1822 static int qlcnic_config_def_intr_coalesce(struct qlcnic_adapter *adapter)
1823 {
1824         struct qlcnic_hardware_context *ahw = adapter->ahw;
1825         int err;
1826
1827         /* Initialize interrupt coalesce parameters */
1828         ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1829
1830         if (qlcnic_83xx_check(adapter)) {
1831                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
1832                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1833                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1834                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1835                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1836
1837                 err = qlcnic_83xx_set_rx_tx_intr_coal(adapter);
1838         } else {
1839                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1840                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1841                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1842
1843                 err = qlcnic_82xx_set_rx_coalesce(adapter);
1844         }
1845
1846         return err;
1847 }
1848
1849 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1850 {
1851         int ring;
1852         struct qlcnic_host_rds_ring *rds_ring;
1853
1854         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1855                 return -EIO;
1856
1857         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1858                 return 0;
1859
1860         if (qlcnic_set_eswitch_port_config(adapter))
1861                 return -EIO;
1862
1863         qlcnic_get_lro_mss_capability(adapter);
1864
1865         if (qlcnic_fw_create_ctx(adapter))
1866                 return -EIO;
1867
1868         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1869                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1870                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1871         }
1872
1873         qlcnic_set_multi(netdev);
1874         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1875
1876         adapter->ahw->linkup = 0;
1877
1878         if (adapter->drv_sds_rings > 1)
1879                 qlcnic_config_rss(adapter, 1);
1880
1881         qlcnic_config_def_intr_coalesce(adapter);
1882
1883         if (netdev->features & NETIF_F_LRO)
1884                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1885
1886         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1887         qlcnic_napi_enable(adapter);
1888
1889         qlcnic_linkevent_request(adapter, 1);
1890
1891         adapter->ahw->reset_context = 0;
1892         netif_tx_start_all_queues(netdev);
1893         return 0;
1894 }
1895
1896 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1897 {
1898         int err = 0;
1899
1900         rtnl_lock();
1901         if (netif_running(netdev))
1902                 err = __qlcnic_up(adapter, netdev);
1903         rtnl_unlock();
1904
1905         return err;
1906 }
1907
1908 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1909 {
1910         int ring;
1911
1912         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1913                 return;
1914
1915         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1916                 return;
1917
1918         if (qlcnic_sriov_vf_check(adapter))
1919                 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1920         smp_mb();
1921         netif_carrier_off(netdev);
1922         adapter->ahw->linkup = 0;
1923         netif_tx_disable(netdev);
1924
1925         qlcnic_free_mac_list(adapter);
1926
1927         if (adapter->fhash.fnum)
1928                 qlcnic_delete_lb_filters(adapter);
1929
1930         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1931
1932         qlcnic_napi_disable(adapter);
1933
1934         qlcnic_fw_destroy_ctx(adapter);
1935         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1936
1937         qlcnic_reset_rx_buffers_list(adapter);
1938
1939         for (ring = 0; ring < adapter->drv_tx_rings; ring++)
1940                 qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
1941 }
1942
1943 /* Usage: During suspend and firmware recovery module */
1944
1945 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1946 {
1947         rtnl_lock();
1948         if (netif_running(netdev))
1949                 __qlcnic_down(adapter, netdev);
1950         rtnl_unlock();
1951
1952 }
1953
1954 int
1955 qlcnic_attach(struct qlcnic_adapter *adapter)
1956 {
1957         struct net_device *netdev = adapter->netdev;
1958         struct pci_dev *pdev = adapter->pdev;
1959         int err;
1960
1961         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1962                 return 0;
1963
1964         err = qlcnic_napi_add(adapter, netdev);
1965         if (err)
1966                 return err;
1967
1968         err = qlcnic_alloc_sw_resources(adapter);
1969         if (err) {
1970                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1971                 goto err_out_napi_del;
1972         }
1973
1974         err = qlcnic_alloc_hw_resources(adapter);
1975         if (err) {
1976                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1977                 goto err_out_free_sw;
1978         }
1979
1980         err = qlcnic_request_irq(adapter);
1981         if (err) {
1982                 dev_err(&pdev->dev, "failed to setup interrupt\n");
1983                 goto err_out_free_hw;
1984         }
1985
1986         qlcnic_create_sysfs_entries(adapter);
1987
1988 #ifdef CONFIG_QLCNIC_VXLAN
1989         if (qlcnic_encap_rx_offload(adapter))
1990                 vxlan_get_rx_port(netdev);
1991 #endif
1992
1993         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1994         return 0;
1995
1996 err_out_free_hw:
1997         qlcnic_free_hw_resources(adapter);
1998 err_out_free_sw:
1999         qlcnic_free_sw_resources(adapter);
2000 err_out_napi_del:
2001         qlcnic_napi_del(adapter);
2002         return err;
2003 }
2004
2005 void qlcnic_detach(struct qlcnic_adapter *adapter)
2006 {
2007         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2008                 return;
2009
2010         qlcnic_remove_sysfs_entries(adapter);
2011
2012         qlcnic_free_hw_resources(adapter);
2013         qlcnic_release_rx_buffers(adapter);
2014         qlcnic_free_irq(adapter);
2015         qlcnic_napi_del(adapter);
2016         qlcnic_free_sw_resources(adapter);
2017
2018         adapter->is_up = 0;
2019 }
2020
2021 void qlcnic_diag_free_res(struct net_device *netdev, int drv_sds_rings)
2022 {
2023         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2024         struct qlcnic_host_sds_ring *sds_ring;
2025         int drv_tx_rings = adapter->drv_tx_rings;
2026         int ring;
2027
2028         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
2029         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2030                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2031                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
2032                         qlcnic_disable_sds_intr(adapter, sds_ring);
2033                 }
2034         }
2035
2036         qlcnic_fw_destroy_ctx(adapter);
2037
2038         qlcnic_detach(adapter);
2039
2040         adapter->ahw->diag_test = 0;
2041         adapter->drv_sds_rings = drv_sds_rings;
2042         adapter->drv_tx_rings = drv_tx_rings;
2043
2044         if (qlcnic_attach(adapter))
2045                 goto out;
2046
2047         if (netif_running(netdev))
2048                 __qlcnic_up(adapter, netdev);
2049 out:
2050         netif_device_attach(netdev);
2051 }
2052
2053 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
2054 {
2055         int err = 0;
2056
2057         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
2058                                 GFP_KERNEL);
2059         if (!adapter->recv_ctx) {
2060                 err = -ENOMEM;
2061                 goto err_out;
2062         }
2063
2064         /* clear stats */
2065         memset(&adapter->stats, 0, sizeof(adapter->stats));
2066 err_out:
2067         return err;
2068 }
2069
2070 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
2071 {
2072         kfree(adapter->recv_ctx);
2073         adapter->recv_ctx = NULL;
2074
2075         if (adapter->ahw->fw_dump.tmpl_hdr) {
2076                 vfree(adapter->ahw->fw_dump.tmpl_hdr);
2077                 adapter->ahw->fw_dump.tmpl_hdr = NULL;
2078         }
2079
2080         kfree(adapter->ahw->reset.buff);
2081         adapter->ahw->fw_dump.tmpl_hdr = NULL;
2082 }
2083
2084 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
2085 {
2086         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2087         struct qlcnic_host_sds_ring *sds_ring;
2088         struct qlcnic_host_rds_ring *rds_ring;
2089         int ring;
2090         int ret;
2091
2092         netif_device_detach(netdev);
2093
2094         if (netif_running(netdev))
2095                 __qlcnic_down(adapter, netdev);
2096
2097         qlcnic_detach(adapter);
2098
2099         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
2100         adapter->ahw->diag_test = test;
2101         adapter->ahw->linkup = 0;
2102
2103         ret = qlcnic_attach(adapter);
2104         if (ret) {
2105                 netif_device_attach(netdev);
2106                 return ret;
2107         }
2108
2109         ret = qlcnic_fw_create_ctx(adapter);
2110         if (ret) {
2111                 qlcnic_detach(adapter);
2112                 netif_device_attach(netdev);
2113                 return ret;
2114         }
2115
2116         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
2117                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
2118                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
2119         }
2120
2121         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2122                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2123                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
2124                         qlcnic_enable_sds_intr(adapter, sds_ring);
2125                 }
2126         }
2127
2128         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
2129                 adapter->ahw->loopback_state = 0;
2130                 qlcnic_linkevent_request(adapter, 1);
2131         }
2132
2133         set_bit(__QLCNIC_DEV_UP, &adapter->state);
2134
2135         return 0;
2136 }
2137
2138 /* Reset context in hardware only */
2139 static int
2140 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
2141 {
2142         struct net_device *netdev = adapter->netdev;
2143
2144         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2145                 return -EBUSY;
2146
2147         netif_device_detach(netdev);
2148
2149         qlcnic_down(adapter, netdev);
2150
2151         qlcnic_up(adapter, netdev);
2152
2153         netif_device_attach(netdev);
2154
2155         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2156         netdev_info(adapter->netdev, "%s: soft reset complete\n", __func__);
2157         return 0;
2158 }
2159
2160 int
2161 qlcnic_reset_context(struct qlcnic_adapter *adapter)
2162 {
2163         int err = 0;
2164         struct net_device *netdev = adapter->netdev;
2165
2166         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2167                 return -EBUSY;
2168
2169         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
2170
2171                 netif_device_detach(netdev);
2172
2173                 if (netif_running(netdev))
2174                         __qlcnic_down(adapter, netdev);
2175
2176                 qlcnic_detach(adapter);
2177
2178                 if (netif_running(netdev)) {
2179                         err = qlcnic_attach(adapter);
2180                         if (!err) {
2181                                 __qlcnic_up(adapter, netdev);
2182                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2183                         }
2184                 }
2185
2186                 netif_device_attach(netdev);
2187         }
2188
2189         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2190         return err;
2191 }
2192
2193 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
2194 {
2195         struct qlcnic_hardware_context *ahw = adapter->ahw;
2196         u16 act_pci_fn = ahw->total_nic_func;
2197         u16 count;
2198
2199         ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
2200         if (act_pci_fn <= 2)
2201                 count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
2202                          act_pci_fn;
2203         else
2204                 count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
2205                          act_pci_fn;
2206         ahw->max_uc_count = count;
2207 }
2208
2209 int
2210 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
2211                     int pci_using_dac)
2212 {
2213         int err;
2214         struct pci_dev *pdev = adapter->pdev;
2215
2216         adapter->rx_csum = 1;
2217         adapter->ahw->mc_enabled = 0;
2218         qlcnic_set_mac_filter_count(adapter);
2219
2220         netdev->netdev_ops         = &qlcnic_netdev_ops;
2221         netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
2222
2223         qlcnic_change_mtu(netdev, netdev->mtu);
2224
2225         if (qlcnic_sriov_vf_check(adapter))
2226                 SET_ETHTOOL_OPS(netdev, &qlcnic_sriov_vf_ethtool_ops);
2227         else
2228                 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
2229
2230         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2231                              NETIF_F_IPV6_CSUM | NETIF_F_GRO |
2232                              NETIF_F_HW_VLAN_CTAG_RX);
2233         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
2234                                   NETIF_F_IPV6_CSUM);
2235
2236         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
2237                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
2238                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
2239         }
2240
2241         if (pci_using_dac) {
2242                 netdev->features |= NETIF_F_HIGHDMA;
2243                 netdev->vlan_features |= NETIF_F_HIGHDMA;
2244         }
2245
2246         if (qlcnic_vlan_tx_check(adapter))
2247                 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
2248
2249         if (qlcnic_sriov_vf_check(adapter))
2250                 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2251
2252         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
2253                 netdev->features |= NETIF_F_LRO;
2254
2255         if (qlcnic_encap_tx_offload(adapter)) {
2256                 netdev->features |= NETIF_F_GSO_UDP_TUNNEL;
2257
2258                 /* encapsulation Tx offload supported by Adapter */
2259                 netdev->hw_enc_features = NETIF_F_IP_CSUM        |
2260                                           NETIF_F_GSO_UDP_TUNNEL |
2261                                           NETIF_F_TSO            |
2262                                           NETIF_F_TSO6;
2263         }
2264
2265         if (qlcnic_encap_rx_offload(adapter))
2266                 netdev->hw_enc_features |= NETIF_F_RXCSUM;
2267
2268         netdev->hw_features = netdev->features;
2269         netdev->priv_flags |= IFF_UNICAST_FLT;
2270         netdev->irq = adapter->msix_entries[0].vector;
2271
2272         err = qlcnic_set_real_num_queues(adapter, netdev);
2273         if (err)
2274                 return err;
2275
2276         err = register_netdev(netdev);
2277         if (err) {
2278                 dev_err(&pdev->dev, "failed to register net device\n");
2279                 return err;
2280         }
2281
2282         qlcnic_dcb_init_dcbnl_ops(adapter->dcb);
2283
2284         return 0;
2285 }
2286
2287 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
2288 {
2289         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
2290                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
2291                 *pci_using_dac = 1;
2292         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
2293                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
2294                 *pci_using_dac = 0;
2295         else {
2296                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
2297                 return -EIO;
2298         }
2299
2300         return 0;
2301 }
2302
2303 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
2304 {
2305         int ring;
2306         struct qlcnic_host_tx_ring *tx_ring;
2307
2308         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2309                 tx_ring = &adapter->tx_ring[ring];
2310                 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
2311                         vfree(tx_ring->cmd_buf_arr);
2312                         tx_ring->cmd_buf_arr = NULL;
2313                 }
2314         }
2315         if (adapter->tx_ring != NULL)
2316                 kfree(adapter->tx_ring);
2317 }
2318
2319 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
2320                           struct net_device *netdev)
2321 {
2322         int ring, vector, index;
2323         struct qlcnic_host_tx_ring *tx_ring;
2324         struct qlcnic_cmd_buffer *cmd_buf_arr;
2325
2326         tx_ring = kcalloc(adapter->drv_tx_rings,
2327                           sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
2328         if (tx_ring == NULL)
2329                 return -ENOMEM;
2330
2331         adapter->tx_ring = tx_ring;
2332
2333         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2334                 tx_ring = &adapter->tx_ring[ring];
2335                 tx_ring->num_desc = adapter->num_txd;
2336                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
2337                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
2338                 if (cmd_buf_arr == NULL) {
2339                         qlcnic_free_tx_rings(adapter);
2340                         return -ENOMEM;
2341                 }
2342                 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
2343                 tx_ring->cmd_buf_arr = cmd_buf_arr;
2344                 spin_lock_init(&tx_ring->tx_clean_lock);
2345         }
2346
2347         if (qlcnic_83xx_check(adapter) ||
2348             (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
2349                 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2350                         tx_ring = &adapter->tx_ring[ring];
2351                         tx_ring->adapter = adapter;
2352                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
2353                                 index = adapter->drv_sds_rings + ring;
2354                                 vector = adapter->msix_entries[index].vector;
2355                                 tx_ring->irq = vector;
2356                         }
2357                 }
2358         }
2359
2360         return 0;
2361 }
2362
2363 void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
2364 {
2365         struct qlcnic_hardware_context *ahw = adapter->ahw;
2366         u32 fw_cmd = 0;
2367
2368         if (qlcnic_82xx_check(adapter))
2369                 fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
2370         else if (qlcnic_83xx_check(adapter))
2371                 fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
2372
2373         if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER)
2374                 qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
2375 }
2376
2377 /* Reset firmware API lock */
2378 static void qlcnic_reset_api_lock(struct qlcnic_adapter *adapter)
2379 {
2380         qlcnic_api_lock(adapter);
2381         qlcnic_api_unlock(adapter);
2382 }
2383
2384
2385 static int
2386 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2387 {
2388         struct net_device *netdev = NULL;
2389         struct qlcnic_adapter *adapter = NULL;
2390         struct qlcnic_hardware_context *ahw;
2391         int err, pci_using_dac = -1;
2392         char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
2393
2394         if (pdev->is_virtfn)
2395                 return -ENODEV;
2396
2397         err = pci_enable_device(pdev);
2398         if (err)
2399                 return err;
2400
2401         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2402                 err = -ENODEV;
2403                 goto err_out_disable_pdev;
2404         }
2405
2406         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
2407         if (err)
2408                 goto err_out_disable_pdev;
2409
2410         err = pci_request_regions(pdev, qlcnic_driver_name);
2411         if (err)
2412                 goto err_out_disable_pdev;
2413
2414         pci_set_master(pdev);
2415         pci_enable_pcie_error_reporting(pdev);
2416
2417         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2418         if (!ahw) {
2419                 err = -ENOMEM;
2420                 goto err_out_free_res;
2421         }
2422
2423         switch (ent->device) {
2424         case PCI_DEVICE_ID_QLOGIC_QLE824X:
2425                 ahw->hw_ops = &qlcnic_hw_ops;
2426                 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2427                 break;
2428         case PCI_DEVICE_ID_QLOGIC_QLE834X:
2429         case PCI_DEVICE_ID_QLOGIC_QLE844X:
2430                 qlcnic_83xx_register_map(ahw);
2431                 break;
2432         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2433         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2434                 qlcnic_sriov_vf_register_map(ahw);
2435                 break;
2436         default:
2437                 goto err_out_free_hw_res;
2438         }
2439
2440         err = qlcnic_setup_pci_map(pdev, ahw);
2441         if (err)
2442                 goto err_out_free_hw_res;
2443
2444         netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
2445                                    QLCNIC_MAX_TX_RINGS);
2446         if (!netdev) {
2447                 err = -ENOMEM;
2448                 goto err_out_iounmap;
2449         }
2450
2451         SET_NETDEV_DEV(netdev, &pdev->dev);
2452
2453         adapter = netdev_priv(netdev);
2454         adapter->netdev  = netdev;
2455         adapter->pdev    = pdev;
2456         adapter->ahw = ahw;
2457
2458         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2459         if (adapter->qlcnic_wq == NULL) {
2460                 err = -ENOMEM;
2461                 dev_err(&pdev->dev, "Failed to create workqueue\n");
2462                 goto err_out_free_netdev;
2463         }
2464
2465         err = qlcnic_alloc_adapter_resources(adapter);
2466         if (err)
2467                 goto err_out_free_wq;
2468
2469         adapter->dev_rst_time = jiffies;
2470         ahw->revision_id = pdev->revision;
2471         ahw->max_vnic_func = qlcnic_get_vnic_func_count(adapter);
2472         if (qlcnic_mac_learn == FDB_MAC_LEARN)
2473                 adapter->fdb_mac_learn = true;
2474         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2475                 adapter->drv_mac_learn = true;
2476
2477         rwlock_init(&adapter->ahw->crb_lock);
2478         mutex_init(&adapter->ahw->mem_lock);
2479
2480         INIT_LIST_HEAD(&adapter->mac_list);
2481
2482         qlcnic_register_dcb(adapter);
2483
2484         if (qlcnic_82xx_check(adapter)) {
2485                 qlcnic_check_vf(adapter, ent);
2486                 adapter->portnum = adapter->ahw->pci_func;
2487                 qlcnic_reset_api_lock(adapter);
2488                 err = qlcnic_start_firmware(adapter);
2489                 if (err) {
2490                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
2491                                 "\t\tIf reboot doesn't help, try flashing the card\n");
2492                         goto err_out_maintenance_mode;
2493                 }
2494
2495                 /* compute and set default and max tx/sds rings */
2496                 if (adapter->ahw->msix_supported) {
2497                         if (qlcnic_check_multi_tx_capability(adapter) == 1)
2498                                 qlcnic_set_tx_ring_count(adapter,
2499                                                          QLCNIC_SINGLE_RING);
2500                         else
2501                                 qlcnic_set_tx_ring_count(adapter,
2502                                                          QLCNIC_DEF_TX_RINGS);
2503                         qlcnic_set_sds_ring_count(adapter,
2504                                                   QLCNIC_DEF_SDS_RINGS);
2505                 } else {
2506                         qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
2507                         qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
2508                 }
2509
2510                 err = qlcnic_setup_idc_param(adapter);
2511                 if (err)
2512                         goto err_out_free_hw;
2513
2514                 adapter->flags |= QLCNIC_NEED_FLR;
2515
2516         } else if (qlcnic_83xx_check(adapter)) {
2517                 qlcnic_83xx_check_vf(adapter, ent);
2518                 adapter->portnum = adapter->ahw->pci_func;
2519                 err = qlcnic_83xx_init(adapter, pci_using_dac);
2520                 if (err) {
2521                         switch (err) {
2522                         case -ENOTRECOVERABLE:
2523                                 dev_err(&pdev->dev, "Adapter initialization failed due to a faulty hardware\n");
2524                                 dev_err(&pdev->dev, "Please replace the adapter with new one and return the faulty adapter for repair\n");
2525                                 goto err_out_free_hw;
2526                         case -ENOMEM:
2527                                 dev_err(&pdev->dev, "Adapter initialization failed. Please reboot\n");
2528                                 goto err_out_free_hw;
2529                         default:
2530                                 dev_err(&pdev->dev, "Adapter initialization failed. A reboot may be required to recover from this failure\n");
2531                                 dev_err(&pdev->dev, "If reboot does not help to recover from this failure, try a flash update of the adapter\n");
2532                                 goto err_out_maintenance_mode;
2533                         }
2534                 }
2535
2536                 if (qlcnic_sriov_vf_check(adapter))
2537                         return 0;
2538         } else {
2539                 dev_err(&pdev->dev,
2540                         "%s: failed. Please Reboot\n", __func__);
2541                 goto err_out_free_hw;
2542         }
2543
2544         if (qlcnic_read_mac_addr(adapter))
2545                 dev_warn(&pdev->dev, "failed to read mac addr\n");
2546
2547         qlcnic_read_phys_port_id(adapter);
2548
2549         if (adapter->portnum == 0) {
2550                 qlcnic_get_board_name(adapter, board_name);
2551
2552                 pr_info("%s: %s Board Chip rev 0x%x\n",
2553                         module_name(THIS_MODULE),
2554                         board_name, adapter->ahw->revision_id);
2555         }
2556
2557         if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2558             !!qlcnic_use_msi)
2559                 dev_warn(&pdev->dev,
2560                          "Device does not support MSI interrupts\n");
2561
2562         if (qlcnic_82xx_check(adapter)) {
2563                 qlcnic_dcb_enable(adapter->dcb);
2564                 qlcnic_dcb_get_info(adapter->dcb);
2565                 err = qlcnic_setup_intr(adapter);
2566
2567                 if (err) {
2568                         dev_err(&pdev->dev, "Failed to setup interrupt\n");
2569                         goto err_out_disable_msi;
2570                 }
2571         }
2572
2573         err = qlcnic_get_act_pci_func(adapter);
2574         if (err)
2575                 goto err_out_disable_mbx_intr;
2576
2577         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2578         if (err)
2579                 goto err_out_disable_mbx_intr;
2580
2581         if (adapter->portnum == 0)
2582                 qlcnic_set_drv_version(adapter);
2583
2584         pci_set_drvdata(pdev, adapter);
2585
2586         if (qlcnic_82xx_check(adapter))
2587                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2588                                      FW_POLL_DELAY);
2589
2590         switch (adapter->ahw->port_type) {
2591         case QLCNIC_GBE:
2592                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2593                                 adapter->netdev->name);
2594                 break;
2595         case QLCNIC_XGBE:
2596                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2597                                 adapter->netdev->name);
2598                 break;
2599         }
2600
2601         if (adapter->drv_mac_learn)
2602                 qlcnic_alloc_lb_filters_mem(adapter);
2603
2604         qlcnic_add_sysfs(adapter);
2605
2606         return 0;
2607
2608 err_out_disable_mbx_intr:
2609         if (qlcnic_83xx_check(adapter))
2610                 qlcnic_83xx_free_mbx_intr(adapter);
2611
2612 err_out_disable_msi:
2613         qlcnic_teardown_intr(adapter);
2614         qlcnic_cancel_idc_work(adapter);
2615         qlcnic_clr_all_drv_state(adapter, 0);
2616
2617 err_out_free_hw:
2618         qlcnic_free_adapter_resources(adapter);
2619
2620 err_out_free_wq:
2621         destroy_workqueue(adapter->qlcnic_wq);
2622
2623 err_out_free_netdev:
2624         free_netdev(netdev);
2625
2626 err_out_iounmap:
2627         qlcnic_cleanup_pci_map(ahw);
2628
2629 err_out_free_hw_res:
2630         kfree(ahw);
2631
2632 err_out_free_res:
2633         pci_release_regions(pdev);
2634
2635 err_out_disable_pdev:
2636         pci_disable_device(pdev);
2637         return err;
2638
2639 err_out_maintenance_mode:
2640         set_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state);
2641         netdev->netdev_ops = &qlcnic_netdev_failed_ops;
2642         SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_failed_ops);
2643         ahw->port_type = QLCNIC_XGBE;
2644
2645         if (qlcnic_83xx_check(adapter))
2646                 adapter->tgt_status_reg = NULL;
2647         else
2648                 ahw->board_type = QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS;
2649
2650         err = register_netdev(netdev);
2651
2652         if (err) {
2653                 dev_err(&pdev->dev, "Failed to register net device\n");
2654                 qlcnic_clr_all_drv_state(adapter, 0);
2655                 goto err_out_free_hw;
2656         }
2657
2658         pci_set_drvdata(pdev, adapter);
2659         qlcnic_add_sysfs(adapter);
2660
2661         return 0;
2662 }
2663
2664 static void qlcnic_remove(struct pci_dev *pdev)
2665 {
2666         struct qlcnic_adapter *adapter;
2667         struct net_device *netdev;
2668         struct qlcnic_hardware_context *ahw;
2669
2670         adapter = pci_get_drvdata(pdev);
2671         if (adapter == NULL)
2672                 return;
2673
2674         netdev = adapter->netdev;
2675         qlcnic_sriov_pf_disable(adapter);
2676
2677         qlcnic_cancel_idc_work(adapter);
2678         ahw = adapter->ahw;
2679
2680         unregister_netdev(netdev);
2681         qlcnic_sriov_cleanup(adapter);
2682
2683         if (qlcnic_83xx_check(adapter)) {
2684                 qlcnic_83xx_initialize_nic(adapter, 0);
2685                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2686                 qlcnic_83xx_free_mbx_intr(adapter);
2687                 qlcnic_83xx_detach_mailbox_work(adapter);
2688                 qlcnic_83xx_free_mailbox(ahw->mailbox);
2689                 kfree(ahw->fw_info);
2690         }
2691
2692         qlcnic_dcb_free(adapter->dcb);
2693
2694         qlcnic_detach(adapter);
2695
2696         if (adapter->npars != NULL)
2697                 kfree(adapter->npars);
2698         if (adapter->eswitch != NULL)
2699                 kfree(adapter->eswitch);
2700
2701         if (qlcnic_82xx_check(adapter))
2702                 qlcnic_clr_all_drv_state(adapter, 0);
2703
2704         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2705
2706         qlcnic_free_lb_filters_mem(adapter);
2707
2708         qlcnic_teardown_intr(adapter);
2709
2710         qlcnic_remove_sysfs(adapter);
2711
2712         qlcnic_cleanup_pci_map(adapter->ahw);
2713
2714         qlcnic_release_firmware(adapter);
2715
2716         pci_disable_pcie_error_reporting(pdev);
2717         pci_release_regions(pdev);
2718         pci_disable_device(pdev);
2719
2720         if (adapter->qlcnic_wq) {
2721                 destroy_workqueue(adapter->qlcnic_wq);
2722                 adapter->qlcnic_wq = NULL;
2723         }
2724
2725         qlcnic_free_adapter_resources(adapter);
2726         kfree(ahw);
2727         free_netdev(netdev);
2728 }
2729
2730 static void qlcnic_shutdown(struct pci_dev *pdev)
2731 {
2732         if (__qlcnic_shutdown(pdev))
2733                 return;
2734
2735         pci_disable_device(pdev);
2736 }
2737
2738 #ifdef CONFIG_PM
2739 static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2740 {
2741         int retval;
2742
2743         retval = __qlcnic_shutdown(pdev);
2744         if (retval)
2745                 return retval;
2746
2747         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2748         return 0;
2749 }
2750
2751 static int qlcnic_resume(struct pci_dev *pdev)
2752 {
2753         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2754         int err;
2755
2756         err = pci_enable_device(pdev);
2757         if (err)
2758                 return err;
2759
2760         pci_set_power_state(pdev, PCI_D0);
2761         pci_set_master(pdev);
2762         pci_restore_state(pdev);
2763
2764         return  __qlcnic_resume(adapter);
2765 }
2766 #endif
2767
2768 static int qlcnic_open(struct net_device *netdev)
2769 {
2770         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2771         int err;
2772
2773         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
2774                 netdev_err(netdev, "%s: Device is in non-operational state\n",
2775                            __func__);
2776
2777                 return -EIO;
2778         }
2779
2780         netif_carrier_off(netdev);
2781
2782         err = qlcnic_attach(adapter);
2783         if (err)
2784                 return err;
2785
2786         err = __qlcnic_up(adapter, netdev);
2787         if (err)
2788                 qlcnic_detach(adapter);
2789
2790         return err;
2791 }
2792
2793 /*
2794  * qlcnic_close - Disables a network interface entry point
2795  */
2796 static int qlcnic_close(struct net_device *netdev)
2797 {
2798         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2799
2800         __qlcnic_down(adapter, netdev);
2801
2802         return 0;
2803 }
2804
2805 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2806 {
2807         void *head;
2808         int i;
2809         struct net_device *netdev = adapter->netdev;
2810         u32 filter_size = 0;
2811         u16 act_pci_func = 0;
2812
2813         if (adapter->fhash.fmax && adapter->fhash.fhead)
2814                 return;
2815
2816         act_pci_func = adapter->ahw->total_nic_func;
2817         spin_lock_init(&adapter->mac_learn_lock);
2818         spin_lock_init(&adapter->rx_mac_learn_lock);
2819
2820         if (qlcnic_82xx_check(adapter)) {
2821                 filter_size = QLCNIC_LB_MAX_FILTERS;
2822                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2823         } else {
2824                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2825                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2826         }
2827
2828         head = kcalloc(adapter->fhash.fbucket_size,
2829                        sizeof(struct hlist_head), GFP_ATOMIC);
2830
2831         if (!head)
2832                 return;
2833
2834         adapter->fhash.fmax = (filter_size / act_pci_func);
2835         adapter->fhash.fhead = head;
2836
2837         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2838                     act_pci_func, adapter->fhash.fmax);
2839
2840         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2841                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2842
2843         adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2844
2845         head = kcalloc(adapter->rx_fhash.fbucket_size,
2846                        sizeof(struct hlist_head), GFP_ATOMIC);
2847
2848         if (!head)
2849                 return;
2850
2851         adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2852         adapter->rx_fhash.fhead = head;
2853
2854         for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2855                 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2856 }
2857
2858 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2859 {
2860         if (adapter->fhash.fmax && adapter->fhash.fhead)
2861                 kfree(adapter->fhash.fhead);
2862
2863         adapter->fhash.fhead = NULL;
2864         adapter->fhash.fmax = 0;
2865
2866         if (adapter->rx_fhash.fmax && adapter->rx_fhash.fhead)
2867                 kfree(adapter->rx_fhash.fhead);
2868
2869         adapter->rx_fhash.fmax = 0;
2870         adapter->rx_fhash.fhead = NULL;
2871 }
2872
2873 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2874 {
2875         struct net_device *netdev = adapter->netdev;
2876         u32 temp_state, temp_val, temp = 0;
2877         int rv = 0;
2878
2879         if (qlcnic_83xx_check(adapter))
2880                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2881
2882         if (qlcnic_82xx_check(adapter))
2883                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2884
2885         temp_state = qlcnic_get_temp_state(temp);
2886         temp_val = qlcnic_get_temp_val(temp);
2887
2888         if (temp_state == QLCNIC_TEMP_PANIC) {
2889                 dev_err(&netdev->dev,
2890                        "Device temperature %d degrees C exceeds"
2891                        " maximum allowed. Hardware has been shut down.\n",
2892                        temp_val);
2893                 rv = 1;
2894         } else if (temp_state == QLCNIC_TEMP_WARN) {
2895                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2896                         dev_err(&netdev->dev,
2897                                "Device temperature %d degrees C "
2898                                "exceeds operating range."
2899                                " Immediate action needed.\n",
2900                                temp_val);
2901                 }
2902         } else {
2903                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2904                         dev_info(&netdev->dev,
2905                                "Device temperature is now %d degrees C"
2906                                " in normal range.\n", temp_val);
2907                 }
2908         }
2909         adapter->ahw->temp = temp_state;
2910         return rv;
2911 }
2912
2913 static inline void dump_tx_ring_desc(struct qlcnic_host_tx_ring *tx_ring)
2914 {
2915         int i;
2916         struct cmd_desc_type0 *tx_desc_info;
2917
2918         for (i = 0; i < tx_ring->num_desc; i++) {
2919                 tx_desc_info = &tx_ring->desc_head[i];
2920                 pr_info("TX Desc: %d\n", i);
2921                 print_hex_dump(KERN_INFO, "TX: ", DUMP_PREFIX_OFFSET, 16, 1,
2922                                &tx_ring->desc_head[i],
2923                                sizeof(struct cmd_desc_type0), true);
2924         }
2925 }
2926
2927 static void qlcnic_dump_tx_rings(struct qlcnic_adapter *adapter)
2928 {
2929         struct net_device *netdev = adapter->netdev;
2930         struct qlcnic_host_tx_ring *tx_ring;
2931         int ring;
2932
2933         if (!netdev || !netif_running(netdev))
2934                 return;
2935
2936         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2937                 tx_ring = &adapter->tx_ring[ring];
2938                 netdev_info(netdev, "Tx ring=%d Context Id=0x%x\n",
2939                             ring, tx_ring->ctx_id);
2940                 netdev_info(netdev,
2941                             "xmit_finished=%llu, xmit_called=%llu, xmit_on=%llu, xmit_off=%llu\n",
2942                             tx_ring->tx_stats.xmit_finished,
2943                             tx_ring->tx_stats.xmit_called,
2944                             tx_ring->tx_stats.xmit_on,
2945                             tx_ring->tx_stats.xmit_off);
2946                 netdev_info(netdev,
2947                             "crb_intr_mask=%d, hw_producer=%d, sw_producer=%d sw_consumer=%d, hw_consumer=%d\n",
2948                             readl(tx_ring->crb_intr_mask),
2949                             readl(tx_ring->crb_cmd_producer),
2950                             tx_ring->producer, tx_ring->sw_consumer,
2951                             le32_to_cpu(*(tx_ring->hw_consumer)));
2952
2953                 netdev_info(netdev, "Total desc=%d, Available desc=%d\n",
2954                             tx_ring->num_desc, qlcnic_tx_avail(tx_ring));
2955
2956                 if (netif_msg_tx_done(adapter->ahw))
2957                         dump_tx_ring_desc(tx_ring);
2958         }
2959 }
2960
2961 static void qlcnic_tx_timeout(struct net_device *netdev)
2962 {
2963         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2964
2965         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2966                 return;
2967
2968         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS) {
2969                 netdev_info(netdev, "Tx timeout, reset the adapter.\n");
2970                 if (qlcnic_82xx_check(adapter))
2971                         adapter->need_fw_reset = 1;
2972                 else if (qlcnic_83xx_check(adapter))
2973                         qlcnic_83xx_idc_request_reset(adapter,
2974                                                       QLCNIC_FORCE_FW_DUMP_KEY);
2975         } else {
2976                 netdev_info(netdev, "Tx timeout, reset adapter context.\n");
2977                 qlcnic_dump_tx_rings(adapter);
2978                 adapter->ahw->reset_context = 1;
2979         }
2980 }
2981
2982 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2983 {
2984         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2985         struct net_device_stats *stats = &netdev->stats;
2986
2987         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2988                 qlcnic_update_stats(adapter);
2989
2990         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2991         stats->tx_packets = adapter->stats.xmitfinished;
2992         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2993         stats->tx_bytes = adapter->stats.txbytes;
2994         stats->rx_dropped = adapter->stats.rxdropped;
2995         stats->tx_dropped = adapter->stats.txdropped;
2996
2997         return stats;
2998 }
2999
3000 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
3001 {
3002         u32 status;
3003
3004         status = readl(adapter->isr_int_vec);
3005
3006         if (!(status & adapter->ahw->int_vec_bit))
3007                 return IRQ_NONE;
3008
3009         /* check interrupt state machine, to be sure */
3010         status = readl(adapter->crb_int_state_reg);
3011         if (!ISR_LEGACY_INT_TRIGGERED(status))
3012                 return IRQ_NONE;
3013
3014         writel(0xffffffff, adapter->tgt_status_reg);
3015         /* read twice to ensure write is flushed */
3016         readl(adapter->isr_int_vec);
3017         readl(adapter->isr_int_vec);
3018
3019         return IRQ_HANDLED;
3020 }
3021
3022 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
3023 {
3024         struct qlcnic_host_sds_ring *sds_ring = data;
3025         struct qlcnic_adapter *adapter = sds_ring->adapter;
3026
3027         if (adapter->flags & QLCNIC_MSIX_ENABLED)
3028                 goto done;
3029         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
3030                 writel(0xffffffff, adapter->tgt_status_reg);
3031                 goto done;
3032         }
3033
3034         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3035                 return IRQ_NONE;
3036
3037 done:
3038         adapter->ahw->diag_cnt++;
3039         qlcnic_enable_sds_intr(adapter, sds_ring);
3040         return IRQ_HANDLED;
3041 }
3042
3043 static irqreturn_t qlcnic_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         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3049                 return IRQ_NONE;
3050
3051         napi_schedule(&sds_ring->napi);
3052
3053         return IRQ_HANDLED;
3054 }
3055
3056 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
3057 {
3058         struct qlcnic_host_sds_ring *sds_ring = data;
3059         struct qlcnic_adapter *adapter = sds_ring->adapter;
3060
3061         /* clear interrupt */
3062         writel(0xffffffff, adapter->tgt_status_reg);
3063
3064         napi_schedule(&sds_ring->napi);
3065         return IRQ_HANDLED;
3066 }
3067
3068 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
3069 {
3070         struct qlcnic_host_sds_ring *sds_ring = data;
3071
3072         napi_schedule(&sds_ring->napi);
3073         return IRQ_HANDLED;
3074 }
3075
3076 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
3077 {
3078         struct qlcnic_host_tx_ring *tx_ring = data;
3079
3080         napi_schedule(&tx_ring->napi);
3081         return IRQ_HANDLED;
3082 }
3083
3084 #ifdef CONFIG_NET_POLL_CONTROLLER
3085 static void qlcnic_poll_controller(struct net_device *netdev)
3086 {
3087         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3088         struct qlcnic_host_sds_ring *sds_ring;
3089         struct qlcnic_recv_context *recv_ctx;
3090         struct qlcnic_host_tx_ring *tx_ring;
3091         int ring;
3092
3093         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3094                 return;
3095
3096         recv_ctx = adapter->recv_ctx;
3097
3098         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3099                 sds_ring = &recv_ctx->sds_rings[ring];
3100                 qlcnic_disable_sds_intr(adapter, sds_ring);
3101                 napi_schedule(&sds_ring->napi);
3102         }
3103
3104         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
3105                 /* Only Multi-Tx queue capable devices need to
3106                  * schedule NAPI for TX rings
3107                  */
3108                 if ((qlcnic_83xx_check(adapter) &&
3109                      (adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
3110                     (qlcnic_82xx_check(adapter) &&
3111                      !qlcnic_check_multi_tx(adapter)))
3112                         return;
3113
3114                 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3115                         tx_ring = &adapter->tx_ring[ring];
3116                         qlcnic_disable_tx_intr(adapter, tx_ring);
3117                         napi_schedule(&tx_ring->napi);
3118                 }
3119         }
3120 }
3121 #endif
3122
3123 static void
3124 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
3125 {
3126         u32 val;
3127
3128         val = adapter->portnum & 0xf;
3129         val |= encoding << 7;
3130         val |= (jiffies - adapter->dev_rst_time) << 8;
3131
3132         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
3133         adapter->dev_rst_time = jiffies;
3134 }
3135
3136 static int
3137 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
3138 {
3139         u32  val;
3140
3141         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
3142                         state != QLCNIC_DEV_NEED_QUISCENT);
3143
3144         if (qlcnic_api_lock(adapter))
3145                 return -EIO;
3146
3147         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3148
3149         if (state == QLCNIC_DEV_NEED_RESET)
3150                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3151         else if (state == QLCNIC_DEV_NEED_QUISCENT)
3152                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
3153
3154         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3155
3156         qlcnic_api_unlock(adapter);
3157
3158         return 0;
3159 }
3160
3161 static int
3162 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
3163 {
3164         u32  val;
3165
3166         if (qlcnic_api_lock(adapter))
3167                 return -EBUSY;
3168
3169         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3170         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3171         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3172
3173         qlcnic_api_unlock(adapter);
3174
3175         return 0;
3176 }
3177
3178 void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
3179 {
3180         u32  val;
3181
3182         if (qlcnic_api_lock(adapter))
3183                 goto err;
3184
3185         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3186         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
3187         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3188
3189         if (failed) {
3190                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3191                                     QLCNIC_DEV_FAILED);
3192                 dev_info(&adapter->pdev->dev,
3193                                 "Device state set to Failed. Please Reboot\n");
3194         } else if (!(val & 0x11111111))
3195                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3196                                     QLCNIC_DEV_COLD);
3197
3198         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3199         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3200         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3201
3202         qlcnic_api_unlock(adapter);
3203 err:
3204         adapter->fw_fail_cnt = 0;
3205         adapter->flags &= ~QLCNIC_FW_HANG;
3206         clear_bit(__QLCNIC_START_FW, &adapter->state);
3207         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3208 }
3209
3210 /* Grab api lock, before checking state */
3211 static int
3212 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
3213 {
3214         int act, state, active_mask;
3215         struct qlcnic_hardware_context *ahw = adapter->ahw;
3216
3217         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3218         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3219
3220         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
3221                 active_mask = (~(1 << (ahw->pci_func * 4)));
3222                 act = act & active_mask;
3223         }
3224
3225         if (((state & 0x11111111) == (act & 0x11111111)) ||
3226                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
3227                 return 0;
3228         else
3229                 return 1;
3230 }
3231
3232 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
3233 {
3234         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
3235
3236         if (val != QLCNIC_DRV_IDC_VER) {
3237                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
3238                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
3239         }
3240
3241         return 0;
3242 }
3243
3244 static int
3245 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
3246 {
3247         u32 val, prev_state;
3248         u8 dev_init_timeo = adapter->dev_init_timeo;
3249         u8 portnum = adapter->portnum;
3250         u8 ret;
3251
3252         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
3253                 return 1;
3254
3255         if (qlcnic_api_lock(adapter))
3256                 return -1;
3257
3258         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3259         if (!(val & (1 << (portnum * 4)))) {
3260                 QLC_DEV_SET_REF_CNT(val, portnum);
3261                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3262         }
3263
3264         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3265         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
3266
3267         switch (prev_state) {
3268         case QLCNIC_DEV_COLD:
3269                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3270                                     QLCNIC_DEV_INITIALIZING);
3271                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
3272                                     QLCNIC_DRV_IDC_VER);
3273                 qlcnic_idc_debug_info(adapter, 0);
3274                 qlcnic_api_unlock(adapter);
3275                 return 1;
3276
3277         case QLCNIC_DEV_READY:
3278                 ret = qlcnic_check_idc_ver(adapter);
3279                 qlcnic_api_unlock(adapter);
3280                 return ret;
3281
3282         case QLCNIC_DEV_NEED_RESET:
3283                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3284                 QLC_DEV_SET_RST_RDY(val, portnum);
3285                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3286                 break;
3287
3288         case QLCNIC_DEV_NEED_QUISCENT:
3289                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3290                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
3291                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3292                 break;
3293
3294         case QLCNIC_DEV_FAILED:
3295                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
3296                 qlcnic_api_unlock(adapter);
3297                 return -1;
3298
3299         case QLCNIC_DEV_INITIALIZING:
3300         case QLCNIC_DEV_QUISCENT:
3301                 break;
3302         }
3303
3304         qlcnic_api_unlock(adapter);
3305
3306         do {
3307                 msleep(1000);
3308                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3309
3310                 if (prev_state == QLCNIC_DEV_QUISCENT)
3311                         continue;
3312         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
3313
3314         if (!dev_init_timeo) {
3315                 dev_err(&adapter->pdev->dev,
3316                         "Waiting for device to initialize timeout\n");
3317                 return -1;
3318         }
3319
3320         if (qlcnic_api_lock(adapter))
3321                 return -1;
3322
3323         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3324         QLC_DEV_CLR_RST_QSCNT(val, portnum);
3325         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3326
3327         ret = qlcnic_check_idc_ver(adapter);
3328         qlcnic_api_unlock(adapter);
3329
3330         return ret;
3331 }
3332
3333 static void
3334 qlcnic_fwinit_work(struct work_struct *work)
3335 {
3336         struct qlcnic_adapter *adapter = container_of(work,
3337                         struct qlcnic_adapter, fw_work.work);
3338         u32 dev_state = 0xf;
3339         u32 val;
3340
3341         if (qlcnic_api_lock(adapter))
3342                 goto err_ret;
3343
3344         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3345         if (dev_state == QLCNIC_DEV_QUISCENT ||
3346             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3347                 qlcnic_api_unlock(adapter);
3348                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
3349                                                 FW_POLL_DELAY * 2);
3350                 return;
3351         }
3352
3353         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
3354                 qlcnic_api_unlock(adapter);
3355                 goto wait_npar;
3356         }
3357
3358         if (dev_state == QLCNIC_DEV_INITIALIZING ||
3359             dev_state == QLCNIC_DEV_READY) {
3360                 dev_info(&adapter->pdev->dev, "Detected state change from "
3361                                 "DEV_NEED_RESET, skipping ack check\n");
3362                 goto skip_ack_check;
3363         }
3364
3365         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
3366                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
3367                                         adapter->reset_ack_timeo);
3368                 goto skip_ack_check;
3369         }
3370
3371         if (!qlcnic_check_drv_state(adapter)) {
3372 skip_ack_check:
3373                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3374
3375                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
3376                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3377                                             QLCNIC_DEV_INITIALIZING);
3378                         set_bit(__QLCNIC_START_FW, &adapter->state);
3379                         QLCDB(adapter, DRV, "Restarting fw\n");
3380                         qlcnic_idc_debug_info(adapter, 0);
3381                         val = QLC_SHARED_REG_RD32(adapter,
3382                                                   QLCNIC_CRB_DRV_STATE);
3383                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3384                         QLC_SHARED_REG_WR32(adapter,
3385                                             QLCNIC_CRB_DRV_STATE, val);
3386                 }
3387
3388                 qlcnic_api_unlock(adapter);
3389
3390                 rtnl_lock();
3391                 if (qlcnic_check_fw_dump_state(adapter) &&
3392                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3393                         QLCDB(adapter, DRV, "Take FW dump\n");
3394                         qlcnic_dump_fw(adapter);
3395                         adapter->flags |= QLCNIC_FW_HANG;
3396                 }
3397                 rtnl_unlock();
3398
3399                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
3400                 if (!adapter->nic_ops->start_firmware(adapter)) {
3401                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3402                         adapter->fw_wait_cnt = 0;
3403                         return;
3404                 }
3405                 goto err_ret;
3406         }
3407
3408         qlcnic_api_unlock(adapter);
3409
3410 wait_npar:
3411         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3412         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
3413
3414         switch (dev_state) {
3415         case QLCNIC_DEV_READY:
3416                 if (!qlcnic_start_firmware(adapter)) {
3417                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3418                         adapter->fw_wait_cnt = 0;
3419                         return;
3420                 }
3421         case QLCNIC_DEV_FAILED:
3422                 break;
3423         default:
3424                 qlcnic_schedule_work(adapter,
3425                         qlcnic_fwinit_work, FW_POLL_DELAY);
3426                 return;
3427         }
3428
3429 err_ret:
3430         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
3431                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
3432         netif_device_attach(adapter->netdev);
3433         qlcnic_clr_all_drv_state(adapter, 0);
3434 }
3435
3436 static void
3437 qlcnic_detach_work(struct work_struct *work)
3438 {
3439         struct qlcnic_adapter *adapter = container_of(work,
3440                         struct qlcnic_adapter, fw_work.work);
3441         struct net_device *netdev = adapter->netdev;
3442         u32 status;
3443
3444         netif_device_detach(netdev);
3445
3446         /* Dont grab rtnl lock during Quiscent mode */
3447         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3448                 if (netif_running(netdev))
3449                         __qlcnic_down(adapter, netdev);
3450         } else
3451                 qlcnic_down(adapter, netdev);
3452
3453         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3454
3455         if (status & QLCNIC_RCODE_FATAL_ERROR) {
3456                 dev_err(&adapter->pdev->dev,
3457                         "Detaching the device: peg halt status1=0x%x\n",
3458                                         status);
3459
3460                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
3461                         dev_err(&adapter->pdev->dev,
3462                         "On board active cooling fan failed. "
3463                                 "Device has been halted.\n");
3464                         dev_err(&adapter->pdev->dev,
3465                                 "Replace the adapter.\n");
3466                 }
3467
3468                 goto err_ret;
3469         }
3470
3471         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
3472                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
3473                         adapter->ahw->temp);
3474                 goto err_ret;
3475         }
3476
3477         /* Dont ack if this instance is the reset owner */
3478         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3479                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
3480                         dev_err(&adapter->pdev->dev,
3481                                 "Failed to set driver state,"
3482                                         "detaching the device.\n");
3483                         goto err_ret;
3484                 }
3485         }
3486
3487         adapter->fw_wait_cnt = 0;
3488
3489         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3490
3491         return;
3492
3493 err_ret:
3494         netif_device_attach(netdev);
3495         qlcnic_clr_all_drv_state(adapter, 1);
3496 }
3497
3498 /*Transit NPAR state to NON Operational */
3499 static void
3500 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3501 {
3502         u32 state;
3503
3504         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3505         if (state == QLCNIC_DEV_NPAR_NON_OPER)
3506                 return;
3507
3508         if (qlcnic_api_lock(adapter))
3509                 return;
3510         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3511                             QLCNIC_DEV_NPAR_NON_OPER);
3512         qlcnic_api_unlock(adapter);
3513 }
3514
3515 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter,
3516                                           u32 key)
3517 {
3518         u32 state, xg_val = 0, gb_val = 0;
3519
3520         qlcnic_xg_set_xg0_mask(xg_val);
3521         qlcnic_xg_set_xg1_mask(xg_val);
3522         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3523         qlcnic_gb_set_gb0_mask(gb_val);
3524         qlcnic_gb_set_gb1_mask(gb_val);
3525         qlcnic_gb_set_gb2_mask(gb_val);
3526         qlcnic_gb_set_gb3_mask(gb_val);
3527         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3528         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3529                                 " on all ports\n");
3530         adapter->need_fw_reset = 1;
3531
3532         if (qlcnic_api_lock(adapter))
3533                 return;
3534
3535         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3536
3537         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
3538                 netdev_err(adapter->netdev, "%s: Device is in non-operational state\n",
3539                            __func__);
3540                 qlcnic_api_unlock(adapter);
3541
3542                 return;
3543         }
3544
3545         if (state == QLCNIC_DEV_READY) {
3546                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3547                                     QLCNIC_DEV_NEED_RESET);
3548                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3549                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3550                 qlcnic_idc_debug_info(adapter, 0);
3551         }
3552
3553         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3554                             QLCNIC_DEV_NPAR_NON_OPER);
3555         qlcnic_api_unlock(adapter);
3556 }
3557
3558 /* Transit to NPAR READY state from NPAR NOT READY state */
3559 static void
3560 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3561 {
3562         if (qlcnic_api_lock(adapter))
3563                 return;
3564
3565         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3566                             QLCNIC_DEV_NPAR_OPER);
3567         QLCDB(adapter, DRV, "NPAR operational state set\n");
3568
3569         qlcnic_api_unlock(adapter);
3570 }
3571
3572 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3573                           work_func_t func, int delay)
3574 {
3575         if (test_bit(__QLCNIC_AER, &adapter->state))
3576                 return;
3577
3578         INIT_DELAYED_WORK(&adapter->fw_work, func);
3579         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3580                            round_jiffies_relative(delay));
3581 }
3582
3583 static void
3584 qlcnic_attach_work(struct work_struct *work)
3585 {
3586         struct qlcnic_adapter *adapter = container_of(work,
3587                                 struct qlcnic_adapter, fw_work.work);
3588         struct net_device *netdev = adapter->netdev;
3589         u32 npar_state;
3590
3591         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3592                 npar_state = QLC_SHARED_REG_RD32(adapter,
3593                                                  QLCNIC_CRB_DEV_NPAR_STATE);
3594                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3595                         qlcnic_clr_all_drv_state(adapter, 0);
3596                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3597                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
3598                                                         FW_POLL_DELAY);
3599                 else
3600                         goto attach;
3601                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3602                 return;
3603         }
3604 attach:
3605         qlcnic_dcb_get_info(adapter->dcb);
3606
3607         if (netif_running(netdev)) {
3608                 if (qlcnic_up(adapter, netdev))
3609                         goto done;
3610
3611                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3612         }
3613
3614 done:
3615         netif_device_attach(netdev);
3616         adapter->fw_fail_cnt = 0;
3617         adapter->flags &= ~QLCNIC_FW_HANG;
3618         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3619         if (adapter->portnum == 0)
3620                 qlcnic_set_drv_version(adapter);
3621
3622         if (!qlcnic_clr_drv_state(adapter))
3623                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3624                                                         FW_POLL_DELAY);
3625 }
3626
3627 static int
3628 qlcnic_check_health(struct qlcnic_adapter *adapter)
3629 {
3630         struct qlcnic_hardware_context *ahw = adapter->ahw;
3631         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
3632         u32 state = 0, heartbeat;
3633         u32 peg_status;
3634         int err = 0;
3635
3636         if (qlcnic_check_temp(adapter))
3637                 goto detach;
3638
3639         if (adapter->need_fw_reset)
3640                 qlcnic_dev_request_reset(adapter, 0);
3641
3642         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3643         if (state == QLCNIC_DEV_NEED_RESET) {
3644                 qlcnic_set_npar_non_operational(adapter);
3645                 adapter->need_fw_reset = 1;
3646         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3647                 goto detach;
3648
3649         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3650         if (heartbeat != adapter->heartbeat) {
3651                 adapter->heartbeat = heartbeat;
3652                 adapter->fw_fail_cnt = 0;
3653                 if (adapter->need_fw_reset)
3654                         goto detach;
3655
3656                 if (ahw->reset_context && qlcnic_auto_fw_reset)
3657                         qlcnic_reset_hw_context(adapter);
3658
3659                 return 0;
3660         }
3661
3662         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3663                 return 0;
3664
3665         adapter->flags |= QLCNIC_FW_HANG;
3666
3667         qlcnic_dev_request_reset(adapter, 0);
3668
3669         if (qlcnic_auto_fw_reset)
3670                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3671
3672         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3673         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3674         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3675                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3676                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3677                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3678                         "PEG_NET_4_PC: 0x%x\n",
3679                         peg_status,
3680                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3681                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3682                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3683                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3684                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3685                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3686         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3687                 dev_err(&adapter->pdev->dev,
3688                         "Firmware aborted with error code 0x00006700. "
3689                                 "Device is being reset.\n");
3690 detach:
3691         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3692                 QLCNIC_DEV_NEED_RESET;
3693
3694         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3695                                                       &adapter->state)) {
3696
3697                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3698                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3699         } else if (!qlcnic_auto_fw_reset && fw_dump->enable &&
3700                    adapter->flags & QLCNIC_FW_RESET_OWNER) {
3701                 qlcnic_dump_fw(adapter);
3702         }
3703
3704         return 1;
3705 }
3706
3707 void qlcnic_fw_poll_work(struct work_struct *work)
3708 {
3709         struct qlcnic_adapter *adapter = container_of(work,
3710                                 struct qlcnic_adapter, fw_work.work);
3711
3712         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3713                 goto reschedule;
3714
3715
3716         if (qlcnic_check_health(adapter))
3717                 return;
3718
3719         if (adapter->fhash.fnum)
3720                 qlcnic_prune_lb_filters(adapter);
3721
3722 reschedule:
3723         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3724 }
3725
3726 static int qlcnic_is_first_func(struct pci_dev *pdev)
3727 {
3728         struct pci_dev *oth_pdev;
3729         int val = pdev->devfn;
3730
3731         while (val-- > 0) {
3732                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3733                         (pdev->bus), pdev->bus->number,
3734                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3735                 if (!oth_pdev)
3736                         continue;
3737
3738                 if (oth_pdev->current_state != PCI_D3cold) {
3739                         pci_dev_put(oth_pdev);
3740                         return 0;
3741                 }
3742                 pci_dev_put(oth_pdev);
3743         }
3744         return 1;
3745 }
3746
3747 static int qlcnic_attach_func(struct pci_dev *pdev)
3748 {
3749         int err, first_func;
3750         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3751         struct net_device *netdev = adapter->netdev;
3752
3753         pdev->error_state = pci_channel_io_normal;
3754
3755         err = pci_enable_device(pdev);
3756         if (err)
3757                 return err;
3758
3759         pci_set_master(pdev);
3760         pci_restore_state(pdev);
3761
3762         first_func = qlcnic_is_first_func(pdev);
3763
3764         if (qlcnic_api_lock(adapter))
3765                 return -EINVAL;
3766
3767         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3768                 adapter->need_fw_reset = 1;
3769                 set_bit(__QLCNIC_START_FW, &adapter->state);
3770                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3771                                     QLCNIC_DEV_INITIALIZING);
3772                 QLCDB(adapter, DRV, "Restarting fw\n");
3773         }
3774         qlcnic_api_unlock(adapter);
3775
3776         err = qlcnic_start_firmware(adapter);
3777         if (err)
3778                 return err;
3779
3780         qlcnic_clr_drv_state(adapter);
3781         kfree(adapter->msix_entries);
3782         adapter->msix_entries = NULL;
3783         err = qlcnic_setup_intr(adapter);
3784
3785         if (err) {
3786                 kfree(adapter->msix_entries);
3787                 netdev_err(netdev, "failed to setup interrupt\n");
3788                 return err;
3789         }
3790
3791         if (netif_running(netdev)) {
3792                 err = qlcnic_attach(adapter);
3793                 if (err) {
3794                         qlcnic_clr_all_drv_state(adapter, 1);
3795                         clear_bit(__QLCNIC_AER, &adapter->state);
3796                         netif_device_attach(netdev);
3797                         return err;
3798                 }
3799
3800                 err = qlcnic_up(adapter, netdev);
3801                 if (err)
3802                         goto done;
3803
3804                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3805         }
3806  done:
3807         netif_device_attach(netdev);
3808         return err;
3809 }
3810
3811 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
3812                                                       pci_channel_state_t state)
3813 {
3814         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3815         struct net_device *netdev = adapter->netdev;
3816
3817         if (state == pci_channel_io_perm_failure)
3818                 return PCI_ERS_RESULT_DISCONNECT;
3819
3820         if (state == pci_channel_io_normal)
3821                 return PCI_ERS_RESULT_RECOVERED;
3822
3823         set_bit(__QLCNIC_AER, &adapter->state);
3824         netif_device_detach(netdev);
3825
3826         cancel_delayed_work_sync(&adapter->fw_work);
3827
3828         if (netif_running(netdev))
3829                 qlcnic_down(adapter, netdev);
3830
3831         qlcnic_detach(adapter);
3832         qlcnic_teardown_intr(adapter);
3833
3834         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3835
3836         pci_save_state(pdev);
3837         pci_disable_device(pdev);
3838
3839         return PCI_ERS_RESULT_NEED_RESET;
3840 }
3841
3842 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
3843 {
3844         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3845                                 PCI_ERS_RESULT_RECOVERED;
3846 }
3847
3848 static void qlcnic_82xx_io_resume(struct pci_dev *pdev)
3849 {
3850         u32 state;
3851         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3852
3853         pci_cleanup_aer_uncorrect_error_status(pdev);
3854         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3855         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3856                                                             &adapter->state))
3857                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3858                                      FW_POLL_DELAY);
3859 }
3860
3861 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3862                                                  pci_channel_state_t state)
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_error_detected) {
3868                 return hw_ops->io_error_detected(pdev, state);
3869         } else {
3870                 dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
3871                 return PCI_ERS_RESULT_DISCONNECT;
3872         }
3873 }
3874
3875 static pci_ers_result_t qlcnic_io_slot_reset(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_slot_reset) {
3881                 return hw_ops->io_slot_reset(pdev);
3882         } else {
3883                 dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
3884                 return PCI_ERS_RESULT_DISCONNECT;
3885         }
3886 }
3887
3888 static void qlcnic_io_resume(struct pci_dev *pdev)
3889 {
3890         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3891         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3892
3893         if (hw_ops->io_resume)
3894                 hw_ops->io_resume(pdev);
3895         else
3896                 dev_err(&pdev->dev, "AER resume handler not registered.\n");
3897 }
3898
3899
3900 static int
3901 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3902 {
3903         int err;
3904
3905         err = qlcnic_can_start_firmware(adapter);
3906         if (err)
3907                 return err;
3908
3909         err = qlcnic_check_npar_opertional(adapter);
3910         if (err)
3911                 return err;
3912
3913         err = qlcnic_initialize_nic(adapter);
3914         if (err)
3915                 return err;
3916
3917         qlcnic_check_options(adapter);
3918
3919         err = qlcnic_set_eswitch_port_config(adapter);
3920         if (err)
3921                 return err;
3922
3923         adapter->need_fw_reset = 0;
3924
3925         return err;
3926 }
3927
3928 int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt,
3929                           int queue_type)
3930 {
3931         struct net_device *netdev = adapter->netdev;
3932         u8 max_hw_rings = 0;
3933         char buf[8];
3934         int cur_rings;
3935
3936         if (queue_type == QLCNIC_RX_QUEUE) {
3937                 max_hw_rings = adapter->max_sds_rings;
3938                 cur_rings = adapter->drv_sds_rings;
3939                 strcpy(buf, "SDS");
3940         } else if (queue_type == QLCNIC_TX_QUEUE) {
3941                 max_hw_rings = adapter->max_tx_rings;
3942                 cur_rings = adapter->drv_tx_rings;
3943                 strcpy(buf, "Tx");
3944         }
3945
3946         if (!QLCNIC_IS_MSI_FAMILY(adapter)) {
3947                 netdev_err(netdev, "No RSS/TSS support in INT-x mode\n");
3948                 return -EINVAL;
3949         }
3950
3951         if (adapter->flags & QLCNIC_MSI_ENABLED) {
3952                 netdev_err(netdev, "No RSS/TSS support in MSI mode\n");
3953                 return -EINVAL;
3954         }
3955
3956         if (!is_power_of_2(ring_cnt)) {
3957                 netdev_err(netdev, "%s rings value should be a power of 2\n",
3958                            buf);
3959                 return -EINVAL;
3960         }
3961
3962         if (qlcnic_82xx_check(adapter) && (queue_type == QLCNIC_TX_QUEUE) &&
3963             !qlcnic_check_multi_tx(adapter)) {
3964                         netdev_err(netdev, "No Multi Tx queue support\n");
3965                         return -EINVAL;
3966         }
3967
3968         if (ring_cnt > num_online_cpus()) {
3969                 netdev_err(netdev,
3970                            "%s value[%u] should not be higher than, number of online CPUs\n",
3971                            buf, num_online_cpus());
3972                 return -EINVAL;
3973         }
3974
3975         return 0;
3976 }
3977
3978 int qlcnic_setup_rings(struct qlcnic_adapter *adapter)
3979 {
3980         struct net_device *netdev = adapter->netdev;
3981         int err;
3982
3983         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3984                 return -EBUSY;
3985
3986         netif_device_detach(netdev);
3987         if (netif_running(netdev))
3988                 __qlcnic_down(adapter, netdev);
3989
3990         qlcnic_detach(adapter);
3991
3992         if (qlcnic_83xx_check(adapter)) {
3993                 qlcnic_83xx_free_mbx_intr(adapter);
3994                 qlcnic_83xx_enable_mbx_poll(adapter);
3995         }
3996
3997         qlcnic_teardown_intr(adapter);
3998
3999         err = qlcnic_setup_intr(adapter);
4000         if (err) {
4001                 kfree(adapter->msix_entries);
4002                 netdev_err(netdev, "failed to setup interrupt\n");
4003                 return err;
4004         }
4005
4006         netif_set_real_num_tx_queues(netdev, adapter->drv_tx_rings);
4007
4008         if (qlcnic_83xx_check(adapter)) {
4009                 qlcnic_83xx_initialize_nic(adapter, 1);
4010                 err = qlcnic_83xx_setup_mbx_intr(adapter);
4011                 qlcnic_83xx_disable_mbx_poll(adapter);
4012                 if (err) {
4013                         dev_err(&adapter->pdev->dev,
4014                                 "failed to setup mbx interrupt\n");
4015                         goto done;
4016                 }
4017         }
4018
4019         if (netif_running(netdev)) {
4020                 err = qlcnic_attach(adapter);
4021                 if (err)
4022                         goto done;
4023                 err = __qlcnic_up(adapter, netdev);
4024                 if (err)
4025                         goto done;
4026                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
4027         }
4028 done:
4029         netif_device_attach(netdev);
4030         clear_bit(__QLCNIC_RESETTING, &adapter->state);
4031         return err;
4032 }
4033
4034 #ifdef CONFIG_INET
4035
4036 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4037
4038 static void
4039 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4040                         struct net_device *dev, unsigned long event)
4041 {
4042         struct in_device *indev;
4043
4044         indev = in_dev_get(dev);
4045         if (!indev)
4046                 return;
4047
4048         for_ifa(indev) {
4049                 switch (event) {
4050                 case NETDEV_UP:
4051                         qlcnic_config_ipaddr(adapter,
4052                                         ifa->ifa_address, QLCNIC_IP_UP);
4053                         break;
4054                 case NETDEV_DOWN:
4055                         qlcnic_config_ipaddr(adapter,
4056                                         ifa->ifa_address, QLCNIC_IP_DOWN);
4057                         break;
4058                 default:
4059                         break;
4060                 }
4061         } endfor_ifa(indev);
4062
4063         in_dev_put(indev);
4064 }
4065
4066 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4067 {
4068         struct qlcnic_adapter *adapter = netdev_priv(netdev);
4069         struct net_device *dev;
4070         u16 vid;
4071
4072         qlcnic_config_indev_addr(adapter, netdev, event);
4073
4074         rcu_read_lock();
4075         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
4076                 dev = __vlan_find_dev_deep(netdev, htons(ETH_P_8021Q), vid);
4077                 if (!dev)
4078                         continue;
4079                 qlcnic_config_indev_addr(adapter, dev, event);
4080         }
4081         rcu_read_unlock();
4082 }
4083
4084 static int qlcnic_netdev_event(struct notifier_block *this,
4085                                  unsigned long event, void *ptr)
4086 {
4087         struct qlcnic_adapter *adapter;
4088         struct net_device *dev = netdev_notifier_info_to_dev(ptr);
4089
4090 recheck:
4091         if (dev == NULL)
4092                 goto done;
4093
4094         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4095                 dev = vlan_dev_real_dev(dev);
4096                 goto recheck;
4097         }
4098
4099         if (!is_qlcnic_netdev(dev))
4100                 goto done;
4101
4102         adapter = netdev_priv(dev);
4103
4104         if (!adapter)
4105                 goto done;
4106
4107         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4108                 goto done;
4109
4110         qlcnic_config_indev_addr(adapter, dev, event);
4111 done:
4112         return NOTIFY_DONE;
4113 }
4114
4115 static int
4116 qlcnic_inetaddr_event(struct notifier_block *this,
4117                 unsigned long event, void *ptr)
4118 {
4119         struct qlcnic_adapter *adapter;
4120         struct net_device *dev;
4121
4122         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4123
4124         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4125
4126 recheck:
4127         if (dev == NULL)
4128                 goto done;
4129
4130         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4131                 dev = vlan_dev_real_dev(dev);
4132                 goto recheck;
4133         }
4134
4135         if (!is_qlcnic_netdev(dev))
4136                 goto done;
4137
4138         adapter = netdev_priv(dev);
4139
4140         if (!adapter)
4141                 goto done;
4142
4143         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4144                 goto done;
4145
4146         switch (event) {
4147         case NETDEV_UP:
4148                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4149
4150                 break;
4151         case NETDEV_DOWN:
4152                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4153
4154                 break;
4155         default:
4156                 break;
4157         }
4158
4159 done:
4160         return NOTIFY_DONE;
4161 }
4162
4163 static struct notifier_block    qlcnic_netdev_cb = {
4164         .notifier_call = qlcnic_netdev_event,
4165 };
4166
4167 static struct notifier_block qlcnic_inetaddr_cb = {
4168         .notifier_call = qlcnic_inetaddr_event,
4169 };
4170 #else
4171 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4172 { }
4173 #endif
4174 static const struct pci_error_handlers qlcnic_err_handler = {
4175         .error_detected = qlcnic_io_error_detected,
4176         .slot_reset = qlcnic_io_slot_reset,
4177         .resume = qlcnic_io_resume,
4178 };
4179
4180 static struct pci_driver qlcnic_driver = {
4181         .name = qlcnic_driver_name,
4182         .id_table = qlcnic_pci_tbl,
4183         .probe = qlcnic_probe,
4184         .remove = qlcnic_remove,
4185 #ifdef CONFIG_PM
4186         .suspend = qlcnic_suspend,
4187         .resume = qlcnic_resume,
4188 #endif
4189         .shutdown = qlcnic_shutdown,
4190         .err_handler = &qlcnic_err_handler,
4191 #ifdef CONFIG_QLCNIC_SRIOV
4192         .sriov_configure = qlcnic_pci_sriov_configure,
4193 #endif
4194
4195 };
4196
4197 static int __init qlcnic_init_module(void)
4198 {
4199         int ret;
4200
4201         printk(KERN_INFO "%s\n", qlcnic_driver_string);
4202
4203 #ifdef CONFIG_INET
4204         register_netdevice_notifier(&qlcnic_netdev_cb);
4205         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4206 #endif
4207
4208         ret = pci_register_driver(&qlcnic_driver);
4209         if (ret) {
4210 #ifdef CONFIG_INET
4211                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4212                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4213 #endif
4214         }
4215
4216         return ret;
4217 }
4218
4219 module_init(qlcnic_init_module);
4220
4221 static void __exit qlcnic_exit_module(void)
4222 {
4223         pci_unregister_driver(&qlcnic_driver);
4224
4225 #ifdef CONFIG_INET
4226         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4227         unregister_netdevice_notifier(&qlcnic_netdev_cb);
4228 #endif
4229 }
4230
4231 module_exit(qlcnic_exit_module);