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
  25 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
  26 MODULE_LICENSE("GPL");
  27 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
  28 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
  29
  30 char qlcnic_driver_name[] = "qlcnic";
  31 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
  32         "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
  33
  34 static int qlcnic_mac_learn;
  35 module_param(qlcnic_mac_learn, int, 0444);
  36 MODULE_PARM_DESC(qlcnic_mac_learn,
  37                  "Mac Filter (0=learning is disabled, 1=Driver learning is enabled, 2=FDB learning is enabled)");
  38
  39 int qlcnic_use_msi = 1;
  40 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled)");
  41 module_param_named(use_msi, qlcnic_use_msi, int, 0444);
  42
  43 int qlcnic_use_msi_x = 1;
  44 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled)");
  45 module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444);
  46
  47 int qlcnic_auto_fw_reset = 1;
  48 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled)");
  49 module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644);
  50
  51 int qlcnic_load_fw_file;
  52 MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file)");
  53 module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);
  54
  55 static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
  56 static void qlcnic_remove(struct pci_dev *pdev);
  57 static int qlcnic_open(struct net_device *netdev);
  58 static int qlcnic_close(struct net_device *netdev);
  59 static void qlcnic_tx_timeout(struct net_device *netdev);
  60 static void qlcnic_attach_work(struct work_struct *work);
  61 static void qlcnic_fwinit_work(struct work_struct *work);
  62 #ifdef CONFIG_NET_POLL_CONTROLLER
  63 static void qlcnic_poll_controller(struct net_device *netdev);
  64 #endif
  65
  66 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
  67 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
  68
  69 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
  70 static irqreturn_t qlcnic_intr(int irq, void *data);
  71 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
  72 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
  73 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data);
  74
  75 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
  76 static int qlcnic_start_firmware(struct qlcnic_adapter *);
  77
  78 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
  79 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
  80 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
  81 static int qlcnic_vlan_rx_add(struct net_device *, __be16, u16);
  82 static int qlcnic_vlan_rx_del(struct net_device *, __be16, u16);
  83
  84 static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
  85 {
  86         struct qlcnic_hardware_context *ahw = adapter->ahw;
  87
  88         if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
  89                 return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
  90         else
  91                 return 1;
  92 }
  93
  94 /*  PCI Device ID Table  */
  95 #define ENTRY(device) \
  96         {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
  97         .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
  98
  99 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
 100         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
 101         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
 102         ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE834X),
 103         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE844X),
 104         ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE844X),
 105         {0,}
 106 };
 107
 108 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
 109
 110
 111 inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
 112 {
 113         writel(tx_ring->producer, tx_ring->crb_cmd_producer);
 114 }
 115
 116 static const u32 msi_tgt_status[8] = {
 117         ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
 118         ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
 119         ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
 120         ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
 121 };
 122
 123 static const u32 qlcnic_reg_tbl[] = {
 124         0x1B20A8,       /* PEG_HALT_STAT1 */
 125         0x1B20AC,       /* PEG_HALT_STAT2 */
 126         0x1B20B0,       /* FW_HEARTBEAT */
 127         0x1B2100,       /* LOCK ID */
 128         0x1B2128,       /* FW_CAPABILITIES */
 129         0x1B2138,       /* drv active */
 130         0x1B2140,       /* dev state */
 131         0x1B2144,       /* drv state */
 132         0x1B2148,       /* drv scratch */
 133         0x1B214C,       /* dev partition info */
 134         0x1B2174,       /* drv idc ver */
 135         0x1B2150,       /* fw version major */
 136         0x1B2154,       /* fw version minor */
 137         0x1B2158,       /* fw version sub */
 138         0x1B219C,       /* npar state */
 139         0x1B21FC,       /* FW_IMG_VALID */
 140         0x1B2250,       /* CMD_PEG_STATE */
 141         0x1B233C,       /* RCV_PEG_STATE */
 142         0x1B23B4,       /* ASIC TEMP */
 143         0x1B216C,       /* FW api */
 144         0x1B2170,       /* drv op mode */
 145         0x13C010,       /* flash lock */
 146         0x13C014,       /* flash unlock */
 147 };
 148
 149 static const struct qlcnic_board_info qlcnic_boards[] = {
 150         { PCI_VENDOR_ID_QLOGIC,
 151           PCI_DEVICE_ID_QLOGIC_QLE844X,
 152           0x0,
 153           0x0,
 154           "8400 series 10GbE Converged Network Adapter (TCP/IP Networking)" },
 155         { PCI_VENDOR_ID_QLOGIC,
 156           PCI_DEVICE_ID_QLOGIC_QLE834X,
 157           PCI_VENDOR_ID_QLOGIC,
 158           0x24e,
 159           "8300 Series Dual Port 10GbE Converged Network Adapter "
 160           "(TCP/IP Networking)" },
 161         { PCI_VENDOR_ID_QLOGIC,
 162           PCI_DEVICE_ID_QLOGIC_QLE834X,
 163           PCI_VENDOR_ID_QLOGIC,
 164           0x243,
 165           "8300 Series Single Port 10GbE Converged Network Adapter "
 166           "(TCP/IP Networking)" },
 167         { PCI_VENDOR_ID_QLOGIC,
 168           PCI_DEVICE_ID_QLOGIC_QLE834X,
 169           PCI_VENDOR_ID_QLOGIC,
 170           0x24a,
 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           0x246,
 177           "8300 Series Dual 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           0x252,
 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           0x26e,
 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           0x260,
 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           0x266,
 201           "8300 Series Single 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           0x269,
 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           0x271,
 213           "8300 Series Dual Port 10GbE Converged Network Adapter "
 214           "(TCP/IP Networking)" },
 215         { PCI_VENDOR_ID_QLOGIC,
 216           PCI_DEVICE_ID_QLOGIC_QLE834X,
 217           0x0, 0x0, "8300 Series 1/10GbE Controller" },
 218         { PCI_VENDOR_ID_QLOGIC,
 219           PCI_DEVICE_ID_QLOGIC_QLE824X,
 220           PCI_VENDOR_ID_QLOGIC,
 221           0x203,
 222           "8200 Series Single Port 10GbE Converged Network Adapter"
 223           "(TCP/IP Networking)" },
 224         { PCI_VENDOR_ID_QLOGIC,
 225           PCI_DEVICE_ID_QLOGIC_QLE824X,
 226           PCI_VENDOR_ID_QLOGIC,
 227           0x207,
 228           "8200 Series Dual Port 10GbE Converged Network Adapter"
 229           "(TCP/IP Networking)" },
 230         { PCI_VENDOR_ID_QLOGIC,
 231           PCI_DEVICE_ID_QLOGIC_QLE824X,
 232           PCI_VENDOR_ID_QLOGIC,
 233           0x20b,
 234           "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter" },
 235         { PCI_VENDOR_ID_QLOGIC,
 236           PCI_DEVICE_ID_QLOGIC_QLE824X,
 237           PCI_VENDOR_ID_QLOGIC,
 238           0x20c,
 239           "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter" },
 240         { PCI_VENDOR_ID_QLOGIC,
 241           PCI_DEVICE_ID_QLOGIC_QLE824X,
 242           PCI_VENDOR_ID_QLOGIC,
 243           0x20f,
 244           "3200 Series Single Port 10Gb Intelligent Ethernet Adapter" },
 245         { PCI_VENDOR_ID_QLOGIC,
 246           PCI_DEVICE_ID_QLOGIC_QLE824X,
 247           0x103c, 0x3733,
 248           "NC523SFP 10Gb 2-port Server Adapter" },
 249         { PCI_VENDOR_ID_QLOGIC,
 250           PCI_DEVICE_ID_QLOGIC_QLE824X,
 251           0x103c, 0x3346,
 252           "CN1000Q Dual Port Converged Network Adapter" },
 253         { PCI_VENDOR_ID_QLOGIC,
 254           PCI_DEVICE_ID_QLOGIC_QLE824X,
 255           PCI_VENDOR_ID_QLOGIC,
 256           0x210,
 257           "QME8242-k 10GbE Dual Port Mezzanine Card" },
 258         { PCI_VENDOR_ID_QLOGIC,
 259           PCI_DEVICE_ID_QLOGIC_QLE824X,
 260           0x0, 0x0, "cLOM8214 1/10GbE Controller" },
 261 };
 262
 263 #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)
 264 #define QLC_MAX_SDS_RINGS       8
 265
 266 static const
 267 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
 268
 269 int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
 270 {
 271         int size = sizeof(struct qlcnic_host_sds_ring) * count;
 272
 273         recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
 274
 275         return recv_ctx->sds_rings == NULL;
 276 }
 277
 278 void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
 279 {
 280         if (recv_ctx->sds_rings != NULL)
 281                 kfree(recv_ctx->sds_rings);
 282
 283         recv_ctx->sds_rings = NULL;
 284 }
 285
 286 int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
 287 {
 288         u8 mac_addr[ETH_ALEN];
 289         struct net_device *netdev = adapter->netdev;
 290         struct pci_dev *pdev = adapter->pdev;
 291
 292         if (qlcnic_get_mac_address(adapter, mac_addr) != 0)
 293                 return -EIO;
 294
 295         memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
 296         memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
 297
 298         /* set station address */
 299
 300         if (!is_valid_ether_addr(netdev->dev_addr))
 301                 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
 302                                         netdev->dev_addr);
 303
 304         return 0;
 305 }
 306
 307 static void qlcnic_delete_adapter_mac(struct qlcnic_adapter *adapter)
 308 {
 309         struct qlcnic_mac_list_s *cur;
 310         struct list_head *head;
 311
 312         list_for_each(head, &adapter->mac_list) {
 313                 cur = list_entry(head, struct qlcnic_mac_list_s, list);
 314                 if (!memcmp(adapter->mac_addr, cur->mac_addr, ETH_ALEN)) {
 315                         qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
 316                                                   0, QLCNIC_MAC_DEL);
 317                         list_del(&cur->list);
 318                         kfree(cur);
 319                         return;
 320                 }
 321         }
 322 }
 323
 324 static int qlcnic_set_mac(struct net_device *netdev, void *p)
 325 {
 326         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 327         struct sockaddr *addr = p;
 328
 329         if (qlcnic_sriov_vf_check(adapter))
 330                 return -EINVAL;
 331
 332         if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
 333                 return -EOPNOTSUPP;
 334
 335         if (!is_valid_ether_addr(addr->sa_data))
 336                 return -EINVAL;
 337
 338         if (!memcmp(adapter->mac_addr, addr->sa_data, ETH_ALEN))
 339                 return 0;
 340
 341         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 342                 netif_device_detach(netdev);
 343                 qlcnic_napi_disable(adapter);
 344         }
 345
 346         qlcnic_delete_adapter_mac(adapter);
 347         memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
 348         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 349         qlcnic_set_multi(adapter->netdev);
 350
 351         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 352                 netif_device_attach(netdev);
 353                 qlcnic_napi_enable(adapter);
 354         }
 355         return 0;
 356 }
 357
 358 static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
 359                         struct net_device *netdev, const unsigned char *addr)
 360 {
 361         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 362         int err = -EOPNOTSUPP;
 363
 364         if (!adapter->fdb_mac_learn)
 365                 return ndo_dflt_fdb_del(ndm, tb, netdev, addr);
 366
 367         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 368                 if (is_unicast_ether_addr(addr)) {
 369                         err = dev_uc_del(netdev, addr);
 370                         if (!err)
 371                                 err = qlcnic_nic_del_mac(adapter, addr);
 372                 } else if (is_multicast_ether_addr(addr)) {
 373                         err = dev_mc_del(netdev, addr);
 374                 } else {
 375                         err =  -EINVAL;
 376                 }
 377         }
 378         return err;
 379 }
 380
 381 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 382                         struct net_device *netdev,
 383                         const unsigned char *addr, u16 flags)
 384 {
 385         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 386         int err = 0;
 387
 388         if (!adapter->fdb_mac_learn)
 389                 return ndo_dflt_fdb_add(ndm, tb, netdev, addr, flags);
 390
 391         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 392                 pr_info("%s: FDB e-switch is not enabled\n", __func__);
 393                 return -EOPNOTSUPP;
 394         }
 395
 396         if (ether_addr_equal(addr, adapter->mac_addr))
 397                 return err;
 398
 399         if (is_unicast_ether_addr(addr)) {
 400                 if (netdev_uc_count(netdev) < adapter->ahw->max_uc_count)
 401                         err = dev_uc_add_excl(netdev, addr);
 402                 else
 403                         err = -ENOMEM;
 404         } else if (is_multicast_ether_addr(addr)) {
 405                 err = dev_mc_add_excl(netdev, addr);
 406         } else {
 407                 err = -EINVAL;
 408         }
 409
 410         return err;
 411 }
 412
 413 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
 414                         struct net_device *netdev, int idx)
 415 {
 416         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 417
 418         if (!adapter->fdb_mac_learn)
 419                 return ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
 420
 421         if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
 422                 idx = ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
 423
 424         return idx;
 425 }
 426
 427 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
 428 {
 429         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
 430                 usleep_range(10000, 11000);
 431
 432         cancel_delayed_work_sync(&adapter->fw_work);
 433 }
 434
 435 static const struct net_device_ops qlcnic_netdev_ops = {
 436         .ndo_open          = qlcnic_open,
 437         .ndo_stop          = qlcnic_close,
 438         .ndo_start_xmit    = qlcnic_xmit_frame,
 439         .ndo_get_stats     = qlcnic_get_stats,
 440         .ndo_validate_addr = eth_validate_addr,
 441         .ndo_set_rx_mode   = qlcnic_set_multi,
 442         .ndo_set_mac_address    = qlcnic_set_mac,
 443         .ndo_change_mtu    = qlcnic_change_mtu,
 444         .ndo_fix_features  = qlcnic_fix_features,
 445         .ndo_set_features  = qlcnic_set_features,
 446         .ndo_tx_timeout    = qlcnic_tx_timeout,
 447         .ndo_vlan_rx_add_vid    = qlcnic_vlan_rx_add,
 448         .ndo_vlan_rx_kill_vid   = qlcnic_vlan_rx_del,
 449         .ndo_fdb_add            = qlcnic_fdb_add,
 450         .ndo_fdb_del            = qlcnic_fdb_del,
 451         .ndo_fdb_dump           = qlcnic_fdb_dump,
 452 #ifdef CONFIG_NET_POLL_CONTROLLER
 453         .ndo_poll_controller = qlcnic_poll_controller,
 454 #endif
 455 #ifdef CONFIG_QLCNIC_SRIOV
 456         .ndo_set_vf_mac         = qlcnic_sriov_set_vf_mac,
 457         .ndo_set_vf_tx_rate     = qlcnic_sriov_set_vf_tx_rate,
 458         .ndo_get_vf_config      = qlcnic_sriov_get_vf_config,
 459         .ndo_set_vf_vlan        = qlcnic_sriov_set_vf_vlan,
 460         .ndo_set_vf_spoofchk    = qlcnic_sriov_set_vf_spoofchk,
 461 #endif
 462 };
 463
 464 static const struct net_device_ops qlcnic_netdev_failed_ops = {
 465         .ndo_open          = qlcnic_open,
 466 };
 467
 468 static struct qlcnic_nic_template qlcnic_ops = {
 469         .config_bridged_mode    = qlcnic_config_bridged_mode,
 470         .config_led             = qlcnic_82xx_config_led,
 471         .start_firmware         = qlcnic_82xx_start_firmware,
 472         .request_reset          = qlcnic_82xx_dev_request_reset,
 473         .cancel_idc_work        = qlcnic_82xx_cancel_idc_work,
 474         .napi_add               = qlcnic_82xx_napi_add,
 475         .napi_del               = qlcnic_82xx_napi_del,
 476         .config_ipaddr          = qlcnic_82xx_config_ipaddr,
 477         .shutdown               = qlcnic_82xx_shutdown,
 478         .resume                 = qlcnic_82xx_resume,
 479         .clear_legacy_intr      = qlcnic_82xx_clear_legacy_intr,
 480 };
 481
 482 struct qlcnic_nic_template qlcnic_vf_ops = {
 483         .config_bridged_mode    = qlcnicvf_config_bridged_mode,
 484         .config_led             = qlcnicvf_config_led,
 485         .start_firmware         = qlcnicvf_start_firmware
 486 };
 487
 488 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
 489         .read_crb                       = qlcnic_82xx_read_crb,
 490         .write_crb                      = qlcnic_82xx_write_crb,
 491         .read_reg                       = qlcnic_82xx_hw_read_wx_2M,
 492         .write_reg                      = qlcnic_82xx_hw_write_wx_2M,
 493         .get_mac_address                = qlcnic_82xx_get_mac_address,
 494         .setup_intr                     = qlcnic_82xx_setup_intr,
 495         .alloc_mbx_args                 = qlcnic_82xx_alloc_mbx_args,
 496         .mbx_cmd                        = qlcnic_82xx_issue_cmd,
 497         .get_func_no                    = qlcnic_82xx_get_func_no,
 498         .api_lock                       = qlcnic_82xx_api_lock,
 499         .api_unlock                     = qlcnic_82xx_api_unlock,
 500         .add_sysfs                      = qlcnic_82xx_add_sysfs,
 501         .remove_sysfs                   = qlcnic_82xx_remove_sysfs,
 502         .process_lb_rcv_ring_diag       = qlcnic_82xx_process_rcv_ring_diag,
 503         .create_rx_ctx                  = qlcnic_82xx_fw_cmd_create_rx_ctx,
 504         .create_tx_ctx                  = qlcnic_82xx_fw_cmd_create_tx_ctx,
 505         .del_rx_ctx                     = qlcnic_82xx_fw_cmd_del_rx_ctx,
 506         .del_tx_ctx                     = qlcnic_82xx_fw_cmd_del_tx_ctx,
 507         .setup_link_event               = qlcnic_82xx_linkevent_request,
 508         .get_nic_info                   = qlcnic_82xx_get_nic_info,
 509         .get_pci_info                   = qlcnic_82xx_get_pci_info,
 510         .set_nic_info                   = qlcnic_82xx_set_nic_info,
 511         .change_macvlan                 = qlcnic_82xx_sre_macaddr_change,
 512         .napi_enable                    = qlcnic_82xx_napi_enable,
 513         .napi_disable                   = qlcnic_82xx_napi_disable,
 514         .config_intr_coal               = qlcnic_82xx_config_intr_coalesce,
 515         .config_rss                     = qlcnic_82xx_config_rss,
 516         .config_hw_lro                  = qlcnic_82xx_config_hw_lro,
 517         .config_loopback                = qlcnic_82xx_set_lb_mode,
 518         .clear_loopback                 = qlcnic_82xx_clear_lb_mode,
 519         .config_promisc_mode            = qlcnic_82xx_nic_set_promisc,
 520         .change_l2_filter               = qlcnic_82xx_change_filter,
 521         .get_board_info                 = qlcnic_82xx_get_board_info,
 522         .set_mac_filter_count           = qlcnic_82xx_set_mac_filter_count,
 523         .free_mac_list                  = qlcnic_82xx_free_mac_list,
 524 };
 525
 526 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 527 {
 528         struct pci_dev *pdev = adapter->pdev;
 529         int err = -1, i;
 530         int max_tx_rings, tx_vector;
 531
 532         if (adapter->flags & QLCNIC_TX_INTR_SHARED) {
 533                 max_tx_rings = 0;
 534                 tx_vector = 0;
 535         } else {
 536                 max_tx_rings = adapter->max_drv_tx_rings;
 537                 tx_vector = 1;
 538         }
 539
 540         if (!adapter->msix_entries) {
 541                 adapter->msix_entries = kcalloc(num_msix,
 542                                                 sizeof(struct msix_entry),
 543                                                 GFP_KERNEL);
 544                 if (!adapter->msix_entries)
 545                         return -ENOMEM;
 546         }
 547
 548         adapter->max_sds_rings = 1;
 549         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 550
 551         if (adapter->ahw->msix_supported) {
 552  enable_msix:
 553                 for (i = 0; i < num_msix; i++)
 554                         adapter->msix_entries[i].entry = i;
 555                 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
 556                 if (err == 0) {
 557                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 558                         if (qlcnic_83xx_check(adapter)) {
 559                                 adapter->ahw->num_msix = num_msix;
 560                                 /* subtract mail box and tx ring vectors */
 561                                 adapter->max_sds_rings = num_msix -
 562                                                          max_tx_rings - 1;
 563                         } else {
 564                                 adapter->max_sds_rings = num_msix;
 565                         }
 566                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 567                         return err;
 568                 } else if (err > 0) {
 569                         dev_info(&pdev->dev,
 570                                  "Unable to allocate %d MSI-X interrupt vectors\n",
 571                                  num_msix);
 572                         if (qlcnic_83xx_check(adapter)) {
 573                                 if (err < (QLC_83XX_MINIMUM_VECTOR - tx_vector))
 574                                         return err;
 575                                 err -= (max_tx_rings + 1);
 576                                 num_msix = rounddown_pow_of_two(err);
 577                                 num_msix += (max_tx_rings + 1);
 578                         } else {
 579                                 num_msix = rounddown_pow_of_two(err);
 580                         }
 581
 582                         if (num_msix) {
 583                                 dev_info(&pdev->dev,
 584                                          "Trying to allocate %d MSI-X interrupt vectors\n",
 585                                          num_msix);
 586                                 goto enable_msix;
 587                         }
 588                 } else {
 589                         dev_info(&pdev->dev,
 590                                  "Unable to allocate %d MSI-X interrupt vectors\n",
 591                                  num_msix);
 592                 }
 593         }
 594
 595         return err;
 596 }
 597
 598 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
 599 {
 600         int err = 0;
 601         u32 offset, mask_reg;
 602         const struct qlcnic_legacy_intr_set *legacy_intrp;
 603         struct qlcnic_hardware_context *ahw = adapter->ahw;
 604         struct pci_dev *pdev = adapter->pdev;
 605
 606         if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
 607                 adapter->flags |= QLCNIC_MSI_ENABLED;
 608                 offset = msi_tgt_status[adapter->ahw->pci_func];
 609                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
 610                                                             offset);
 611                 dev_info(&pdev->dev, "using msi interrupts\n");
 612                 adapter->msix_entries[0].vector = pdev->irq;
 613                 return err;
 614         }
 615         if (qlcnic_use_msi || qlcnic_use_msi_x)
 616                 return -EOPNOTSUPP;
 617
 618         legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
 619         adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
 620         offset = legacy_intrp->tgt_status_reg;
 621         adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
 622         mask_reg = legacy_intrp->tgt_mask_reg;
 623         adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
 624         adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
 625         adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
 626         dev_info(&pdev->dev, "using legacy interrupts\n");
 627         adapter->msix_entries[0].vector = pdev->irq;
 628         return err;
 629 }
 630
 631 int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter, u8 num_intr)
 632 {
 633         int num_msix, err = 0;
 634
 635         if (!num_intr)
 636                 num_intr = QLCNIC_DEF_NUM_STS_DESC_RINGS;
 637
 638         if (adapter->ahw->msix_supported)
 639                 num_msix = rounddown_pow_of_two(min_t(int, num_online_cpus(),
 640                                                 num_intr));
 641         else
 642                 num_msix = 1;
 643
 644         err = qlcnic_enable_msix(adapter, num_msix);
 645         if (err == -ENOMEM || !err)
 646                 return err;
 647
 648         err = qlcnic_enable_msi_legacy(adapter);
 649         if (!err)
 650                 return err;
 651
 652         return -EIO;
 653 }
 654
 655 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 656 {
 657         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 658                 pci_disable_msix(adapter->pdev);
 659         if (adapter->flags & QLCNIC_MSI_ENABLED)
 660                 pci_disable_msi(adapter->pdev);
 661
 662         kfree(adapter->msix_entries);
 663         adapter->msix_entries = NULL;
 664
 665         if (adapter->ahw->intr_tbl) {
 666                 vfree(adapter->ahw->intr_tbl);
 667                 adapter->ahw->intr_tbl = NULL;
 668         }
 669 }
 670
 671 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
 672 {
 673         if (ahw->pci_base0 != NULL)
 674                 iounmap(ahw->pci_base0);
 675 }
 676
 677 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
 678 {
 679         struct qlcnic_pci_info *pci_info;
 680         int ret;
 681
 682         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 683                 switch (adapter->ahw->port_type) {
 684                 case QLCNIC_GBE:
 685                         adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_GBE_PORTS;
 686                         break;
 687                 case QLCNIC_XGBE:
 688                         adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_XG_PORTS;
 689                         break;
 690                 }
 691                 return 0;
 692         }
 693
 694         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
 695                 return 0;
 696
 697         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 698         if (!pci_info)
 699                 return -ENOMEM;
 700
 701         ret = qlcnic_get_pci_info(adapter, pci_info);
 702         kfree(pci_info);
 703         return ret;
 704 }
 705
 706 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 707 {
 708         struct qlcnic_pci_info *pci_info;
 709         int i, ret = 0, j = 0;
 710         u16 act_pci_func;
 711         u8 pfn;
 712
 713         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 714         if (!pci_info)
 715                 return -ENOMEM;
 716
 717         ret = qlcnic_get_pci_info(adapter, pci_info);
 718         if (ret)
 719                 goto err_pci_info;
 720
 721         act_pci_func = adapter->ahw->act_pci_func;
 722
 723         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
 724                                  act_pci_func, GFP_KERNEL);
 725         if (!adapter->npars) {
 726                 ret = -ENOMEM;
 727                 goto err_pci_info;
 728         }
 729
 730         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
 731                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
 732         if (!adapter->eswitch) {
 733                 ret = -ENOMEM;
 734                 goto err_npars;
 735         }
 736
 737         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 738                 pfn = pci_info[i].id;
 739
 740                 if (pfn >= QLCNIC_MAX_PCI_FUNC) {
 741                         ret = QL_STATUS_INVALID_PARAM;
 742                         goto err_eswitch;
 743                 }
 744
 745                 if (!pci_info[i].active ||
 746                     (pci_info[i].type != QLCNIC_TYPE_NIC))
 747                         continue;
 748
 749                 adapter->npars[j].pci_func = pfn;
 750                 adapter->npars[j].active = (u8)pci_info[i].active;
 751                 adapter->npars[j].type = (u8)pci_info[i].type;
 752                 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
 753                 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
 754                 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
 755                 j++;
 756         }
 757
 758         for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++) {
 759                 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
 760                 if (qlcnic_83xx_check(adapter))
 761                         qlcnic_enable_eswitch(adapter, i, 1);
 762         }
 763
 764         kfree(pci_info);
 765         return 0;
 766
 767 err_eswitch:
 768         kfree(adapter->eswitch);
 769         adapter->eswitch = NULL;
 770 err_npars:
 771         kfree(adapter->npars);
 772         adapter->npars = NULL;
 773 err_pci_info:
 774         kfree(pci_info);
 775
 776         return ret;
 777 }
 778
 779 static int
 780 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
 781 {
 782         u8 id;
 783         int ret;
 784         u32 data = QLCNIC_MGMT_FUNC;
 785         struct qlcnic_hardware_context *ahw = adapter->ahw;
 786
 787         ret = qlcnic_api_lock(adapter);
 788         if (ret)
 789                 goto err_lock;
 790
 791         id = ahw->pci_func;
 792         data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 793         data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
 794                QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
 795         QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
 796         qlcnic_api_unlock(adapter);
 797 err_lock:
 798         return ret;
 799 }
 800
 801 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
 802                             const struct pci_device_id *ent)
 803 {
 804         u32 op_mode, priv_level;
 805
 806         /* Determine FW API version */
 807         adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
 808                                                            QLCNIC_FW_API);
 809
 810         /* Find PCI function number */
 811         qlcnic_get_func_no(adapter);
 812
 813         /* Determine function privilege level */
 814         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 815         if (op_mode == QLC_DEV_DRV_DEFAULT)
 816                 priv_level = QLCNIC_MGMT_FUNC;
 817         else
 818                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
 819
 820         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
 821                 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
 822                 dev_info(&adapter->pdev->dev,
 823                         "HAL Version: %d Non Privileged function\n",
 824                          adapter->ahw->fw_hal_version);
 825                 adapter->nic_ops = &qlcnic_vf_ops;
 826         } else
 827                 adapter->nic_ops = &qlcnic_ops;
 828 }
 829
 830 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
 831 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
 832 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
 833 {
 834         switch (dev_id) {
 835         case PCI_DEVICE_ID_QLOGIC_QLE824X:
 836                 *bar = QLCNIC_82XX_BAR0_LENGTH;
 837                 break;
 838         case PCI_DEVICE_ID_QLOGIC_QLE834X:
 839         case PCI_DEVICE_ID_QLOGIC_QLE844X:
 840         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
 841         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
 842                 *bar = QLCNIC_83XX_BAR0_LENGTH;
 843                 break;
 844         default:
 845                 *bar = 0;
 846         }
 847 }
 848
 849 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
 850                                 struct qlcnic_hardware_context *ahw)
 851 {
 852         u32 offset;
 853         void __iomem *mem_ptr0 = NULL;
 854         unsigned long mem_len, pci_len0 = 0, bar0_len;
 855
 856         /* remap phys address */
 857         mem_len = pci_resource_len(pdev, 0);
 858
 859         qlcnic_get_bar_length(pdev->device, &bar0_len);
 860         if (mem_len >= bar0_len) {
 861
 862                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
 863                 if (mem_ptr0 == NULL) {
 864                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
 865                         return -EIO;
 866                 }
 867                 pci_len0 = mem_len;
 868         } else {
 869                 return -EIO;
 870         }
 871
 872         dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
 873
 874         ahw->pci_base0 = mem_ptr0;
 875         ahw->pci_len0 = pci_len0;
 876         offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
 877         qlcnic_get_ioaddr(ahw, offset);
 878
 879         return 0;
 880 }
 881
 882 static inline bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
 883                                                 int index)
 884 {
 885         struct pci_dev *pdev = adapter->pdev;
 886         unsigned short subsystem_vendor;
 887         bool ret = true;
 888
 889         subsystem_vendor = pdev->subsystem_vendor;
 890
 891         if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
 892             pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
 893                 if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
 894                     qlcnic_boards[index].sub_device == pdev->subsystem_device)
 895                         ret = true;
 896                 else
 897                         ret = false;
 898         }
 899
 900         return ret;
 901 }
 902
 903 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
 904 {
 905         struct pci_dev *pdev = adapter->pdev;
 906         int i, found = 0;
 907
 908         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
 909                 if (qlcnic_boards[i].vendor == pdev->vendor &&
 910                     qlcnic_boards[i].device == pdev->device &&
 911                     qlcnic_validate_subsystem_id(adapter, i)) {
 912                         found = 1;
 913                         break;
 914                 }
 915         }
 916
 917         if (!found)
 918                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
 919         else
 920                 sprintf(name, "%pM: %s" , adapter->mac_addr,
 921                         qlcnic_boards[i].short_name);
 922 }
 923
 924 static void
 925 qlcnic_check_options(struct qlcnic_adapter *adapter)
 926 {
 927         int err;
 928         u32 fw_major, fw_minor, fw_build, prev_fw_version;
 929         struct pci_dev *pdev = adapter->pdev;
 930         struct qlcnic_hardware_context *ahw = adapter->ahw;
 931         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
 932
 933         prev_fw_version = adapter->fw_version;
 934
 935         fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
 936         fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
 937         fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
 938
 939         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
 940
 941         err = qlcnic_get_board_info(adapter);
 942         if (err) {
 943                 dev_err(&pdev->dev, "Error getting board config info.\n");
 944                 return;
 945         }
 946         if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
 947                 if (fw_dump->tmpl_hdr == NULL ||
 948                                 adapter->fw_version > prev_fw_version) {
 949                         if (fw_dump->tmpl_hdr)
 950                                 vfree(fw_dump->tmpl_hdr);
 951                         if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
 952                                 dev_info(&pdev->dev,
 953                                         "Supports FW dump capability\n");
 954                 }
 955         }
 956
 957         dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
 958                  QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
 959
 960         if (adapter->ahw->port_type == QLCNIC_XGBE) {
 961                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 962                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
 963                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
 964                 } else {
 965                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
 966                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
 967                 }
 968
 969                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 970                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 971
 972         } else if (adapter->ahw->port_type == QLCNIC_GBE) {
 973                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
 974                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 975                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 976                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
 977         }
 978
 979         adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
 980
 981         adapter->num_txd = MAX_CMD_DESCRIPTORS;
 982
 983         adapter->max_rds_rings = MAX_RDS_RINGS;
 984 }
 985
 986 static int
 987 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
 988 {
 989         struct qlcnic_info nic_info;
 990         int err = 0;
 991
 992         memset(&nic_info, 0, sizeof(struct qlcnic_info));
 993         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
 994         if (err)
 995                 return err;
 996
 997         adapter->ahw->physical_port = (u8)nic_info.phys_port;
 998         adapter->ahw->switch_mode = nic_info.switch_mode;
 999         adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
1000         adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
1001         adapter->ahw->capabilities = nic_info.capabilities;
1002
1003         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1004                 u32 temp;
1005                 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
1006                 if (err == -EIO)
1007                         return err;
1008                 adapter->ahw->extra_capability[0] = temp;
1009         }
1010         adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1011         adapter->ahw->max_mtu = nic_info.max_mtu;
1012
1013         /* Disable NPAR for 83XX */
1014         if (qlcnic_83xx_check(adapter))
1015                 return err;
1016
1017         if (adapter->ahw->capabilities & BIT_6)
1018                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1019         else
1020                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1021
1022         return err;
1023 }
1024
1025 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1026                             struct qlcnic_esw_func_cfg *esw_cfg)
1027 {
1028         if (esw_cfg->discard_tagged)
1029                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1030         else
1031                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1032
1033         if (esw_cfg->vlan_id) {
1034                 adapter->rx_pvid = esw_cfg->vlan_id;
1035                 adapter->tx_pvid = esw_cfg->vlan_id;
1036         } else {
1037                 adapter->rx_pvid = 0;
1038                 adapter->tx_pvid = 0;
1039         }
1040 }
1041
1042 static int
1043 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1044 {
1045         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1046         int err;
1047
1048         if (qlcnic_sriov_vf_check(adapter)) {
1049                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1050                 if (err) {
1051                         netdev_err(netdev,
1052                                    "Cannot add VLAN filter for VLAN id %d, err=%d",
1053                                    vid, err);
1054                         return err;
1055                 }
1056         }
1057
1058         set_bit(vid, adapter->vlans);
1059         return 0;
1060 }
1061
1062 static int
1063 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1064 {
1065         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1066         int err;
1067
1068         if (qlcnic_sriov_vf_check(adapter)) {
1069                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1070                 if (err) {
1071                         netdev_err(netdev,
1072                                    "Cannot delete VLAN filter for VLAN id %d, err=%d",
1073                                    vid, err);
1074                         return err;
1075                 }
1076         }
1077
1078         qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1079         clear_bit(vid, adapter->vlans);
1080         return 0;
1081 }
1082
1083 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1084                                       struct qlcnic_esw_func_cfg *esw_cfg)
1085 {
1086         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1087                                 QLCNIC_PROMISC_DISABLED);
1088
1089         if (esw_cfg->mac_anti_spoof)
1090                 adapter->flags |= QLCNIC_MACSPOOF;
1091
1092         if (!esw_cfg->mac_override)
1093                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1094
1095         if (!esw_cfg->promisc_mode)
1096                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1097 }
1098
1099 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1100 {
1101         struct qlcnic_esw_func_cfg esw_cfg;
1102
1103         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1104                 return 0;
1105
1106         esw_cfg.pci_func = adapter->ahw->pci_func;
1107         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1108                         return -EIO;
1109         qlcnic_set_vlan_config(adapter, &esw_cfg);
1110         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1111         qlcnic_set_netdev_features(adapter, &esw_cfg);
1112
1113         return 0;
1114 }
1115
1116 void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1117                                 struct qlcnic_esw_func_cfg *esw_cfg)
1118 {
1119         struct net_device *netdev = adapter->netdev;
1120
1121         if (qlcnic_83xx_check(adapter))
1122                 return;
1123
1124         adapter->offload_flags = esw_cfg->offload_flags;
1125         adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1126         netdev_update_features(netdev);
1127         adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1128 }
1129
1130 static int
1131 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1132 {
1133         u32 op_mode, priv_level;
1134         int err = 0;
1135
1136         err = qlcnic_initialize_nic(adapter);
1137         if (err)
1138                 return err;
1139
1140         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1141                 return 0;
1142
1143         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1144         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1145
1146         if (op_mode == QLC_DEV_DRV_DEFAULT)
1147                 priv_level = QLCNIC_MGMT_FUNC;
1148         else
1149                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1150
1151         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1152                 if (priv_level == QLCNIC_MGMT_FUNC) {
1153                         adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1154                         err = qlcnic_init_pci_info(adapter);
1155                         if (err)
1156                                 return err;
1157                         /* Set privilege level for other functions */
1158                         qlcnic_set_function_modes(adapter);
1159                         dev_info(&adapter->pdev->dev,
1160                                 "HAL Version: %d, Management function\n",
1161                                  adapter->ahw->fw_hal_version);
1162                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1163                         adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1164                         dev_info(&adapter->pdev->dev,
1165                                 "HAL Version: %d, Privileged function\n",
1166                                  adapter->ahw->fw_hal_version);
1167                 }
1168         }
1169
1170         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1171
1172         return err;
1173 }
1174
1175 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1176 {
1177         struct qlcnic_esw_func_cfg esw_cfg;
1178         struct qlcnic_npar_info *npar;
1179         u8 i;
1180
1181         if (adapter->need_fw_reset)
1182                 return 0;
1183
1184         for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1185                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1186                 esw_cfg.pci_func = adapter->npars[i].pci_func;
1187                 esw_cfg.mac_override = BIT_0;
1188                 esw_cfg.promisc_mode = BIT_0;
1189                 if (qlcnic_82xx_check(adapter)) {
1190                         esw_cfg.offload_flags = BIT_0;
1191                         if (QLCNIC_IS_TSO_CAPABLE(adapter))
1192                                 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1193                 }
1194                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1195                         return -EIO;
1196                 npar = &adapter->npars[i];
1197                 npar->pvid = esw_cfg.vlan_id;
1198                 npar->mac_override = esw_cfg.mac_override;
1199                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1200                 npar->discard_tagged = esw_cfg.discard_tagged;
1201                 npar->promisc_mode = esw_cfg.promisc_mode;
1202                 npar->offload_flags = esw_cfg.offload_flags;
1203         }
1204
1205         return 0;
1206 }
1207
1208
1209 static int
1210 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1211                         struct qlcnic_npar_info *npar, int pci_func)
1212 {
1213         struct qlcnic_esw_func_cfg esw_cfg;
1214         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1215         esw_cfg.pci_func = pci_func;
1216         esw_cfg.vlan_id = npar->pvid;
1217         esw_cfg.mac_override = npar->mac_override;
1218         esw_cfg.discard_tagged = npar->discard_tagged;
1219         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1220         esw_cfg.offload_flags = npar->offload_flags;
1221         esw_cfg.promisc_mode = npar->promisc_mode;
1222         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1223                 return -EIO;
1224
1225         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1226         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1227                 return -EIO;
1228
1229         return 0;
1230 }
1231
1232 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1233 {
1234         int i, err;
1235         struct qlcnic_npar_info *npar;
1236         struct qlcnic_info nic_info;
1237         u8 pci_func;
1238
1239         if (qlcnic_82xx_check(adapter))
1240                 if (!adapter->need_fw_reset)
1241                         return 0;
1242
1243         /* Set the NPAR config data after FW reset */
1244         for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1245                 npar = &adapter->npars[i];
1246                 pci_func = npar->pci_func;
1247                 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1248                 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1249                 if (err)
1250                         return err;
1251                 nic_info.min_tx_bw = npar->min_bw;
1252                 nic_info.max_tx_bw = npar->max_bw;
1253                 err = qlcnic_set_nic_info(adapter, &nic_info);
1254                 if (err)
1255                         return err;
1256
1257                 if (npar->enable_pm) {
1258                         err = qlcnic_config_port_mirroring(adapter,
1259                                                            npar->dest_npar, 1,
1260                                                            pci_func);
1261                         if (err)
1262                                 return err;
1263                 }
1264                 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1265                 if (err)
1266                         return err;
1267         }
1268         return 0;
1269 }
1270
1271 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1272 {
1273         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1274         u32 npar_state;
1275
1276         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1277                 return 0;
1278
1279         npar_state = QLC_SHARED_REG_RD32(adapter,
1280                                          QLCNIC_CRB_DEV_NPAR_STATE);
1281         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1282                 msleep(1000);
1283                 npar_state = QLC_SHARED_REG_RD32(adapter,
1284                                                  QLCNIC_CRB_DEV_NPAR_STATE);
1285         }
1286         if (!npar_opt_timeo) {
1287                 dev_err(&adapter->pdev->dev,
1288                         "Waiting for NPAR state to operational timeout\n");
1289                 return -EIO;
1290         }
1291         return 0;
1292 }
1293
1294 static int
1295 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1296 {
1297         int err;
1298
1299         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1300             adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1301                 return 0;
1302
1303         err = qlcnic_set_default_offload_settings(adapter);
1304         if (err)
1305                 return err;
1306
1307         err = qlcnic_reset_npar_config(adapter);
1308         if (err)
1309                 return err;
1310
1311         qlcnic_dev_set_npar_ready(adapter);
1312
1313         return err;
1314 }
1315
1316 int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1317 {
1318         int err;
1319
1320         err = qlcnic_can_start_firmware(adapter);
1321         if (err < 0)
1322                 return err;
1323         else if (!err)
1324                 goto check_fw_status;
1325
1326         if (qlcnic_load_fw_file)
1327                 qlcnic_request_firmware(adapter);
1328         else {
1329                 err = qlcnic_check_flash_fw_ver(adapter);
1330                 if (err)
1331                         goto err_out;
1332
1333                 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1334         }
1335
1336         err = qlcnic_need_fw_reset(adapter);
1337         if (err == 0)
1338                 goto check_fw_status;
1339
1340         err = qlcnic_pinit_from_rom(adapter);
1341         if (err)
1342                 goto err_out;
1343
1344         err = qlcnic_load_firmware(adapter);
1345         if (err)
1346                 goto err_out;
1347
1348         qlcnic_release_firmware(adapter);
1349         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1350
1351 check_fw_status:
1352         err = qlcnic_check_fw_status(adapter);
1353         if (err)
1354                 goto err_out;
1355
1356         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1357         qlcnic_idc_debug_info(adapter, 1);
1358         err = qlcnic_check_eswitch_mode(adapter);
1359         if (err) {
1360                 dev_err(&adapter->pdev->dev,
1361                         "Memory allocation failed for eswitch\n");
1362                 goto err_out;
1363         }
1364         err = qlcnic_set_mgmt_operations(adapter);
1365         if (err)
1366                 goto err_out;
1367
1368         qlcnic_check_options(adapter);
1369         adapter->need_fw_reset = 0;
1370
1371         qlcnic_release_firmware(adapter);
1372         return 0;
1373
1374 err_out:
1375         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1376         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1377
1378         qlcnic_release_firmware(adapter);
1379         return err;
1380 }
1381
1382 static int
1383 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1384 {
1385         irq_handler_t handler;
1386         struct qlcnic_host_sds_ring *sds_ring;
1387         struct qlcnic_host_tx_ring *tx_ring;
1388         int err, ring, num_sds_rings;
1389
1390         unsigned long flags = 0;
1391         struct net_device *netdev = adapter->netdev;
1392         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1393
1394         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1395                 if (qlcnic_82xx_check(adapter))
1396                         handler = qlcnic_tmp_intr;
1397                 else
1398                         handler = qlcnic_83xx_tmp_intr;
1399                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1400                         flags |= IRQF_SHARED;
1401
1402         } else {
1403                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1404                         handler = qlcnic_msix_intr;
1405                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1406                         handler = qlcnic_msi_intr;
1407                 else {
1408                         flags |= IRQF_SHARED;
1409                         if (qlcnic_82xx_check(adapter))
1410                                 handler = qlcnic_intr;
1411                         else
1412                                 handler = qlcnic_83xx_intr;
1413                 }
1414         }
1415         adapter->irq = netdev->irq;
1416
1417         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1418                 if (qlcnic_82xx_check(adapter) ||
1419                     (qlcnic_83xx_check(adapter) &&
1420                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1421                         num_sds_rings = adapter->max_sds_rings;
1422                         for (ring = 0; ring < num_sds_rings; ring++) {
1423                                 sds_ring = &recv_ctx->sds_rings[ring];
1424                                 if (qlcnic_82xx_check(adapter) &&
1425                                     (ring == (num_sds_rings - 1))) {
1426                                         if (!(adapter->flags &
1427                                               QLCNIC_MSIX_ENABLED))
1428                                                 snprintf(sds_ring->name,
1429                                                          sizeof(sds_ring->name),
1430                                                          "qlcnic");
1431                                         else
1432                                                 snprintf(sds_ring->name,
1433                                                          sizeof(sds_ring->name),
1434                                                          "%s-tx-0-rx-%d",
1435                                                          netdev->name, ring);
1436                                 } else {
1437                                         snprintf(sds_ring->name,
1438                                                  sizeof(sds_ring->name),
1439                                                  "%s-rx-%d",
1440                                                  netdev->name, ring);
1441                                 }
1442                                 err = request_irq(sds_ring->irq, handler, flags,
1443                                                   sds_ring->name, sds_ring);
1444                                 if (err)
1445                                         return err;
1446                         }
1447                 }
1448                 if (qlcnic_83xx_check(adapter) &&
1449                     (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1450                     !(adapter->flags & QLCNIC_TX_INTR_SHARED)) {
1451                         handler = qlcnic_msix_tx_intr;
1452                         for (ring = 0; ring < adapter->max_drv_tx_rings;
1453                              ring++) {
1454                                 tx_ring = &adapter->tx_ring[ring];
1455                                 snprintf(tx_ring->name, sizeof(tx_ring->name),
1456                                          "%s-tx-%d", netdev->name, ring);
1457                                 err = request_irq(tx_ring->irq, handler, flags,
1458                                                   tx_ring->name, tx_ring);
1459                                 if (err)
1460                                         return err;
1461                         }
1462                 }
1463         }
1464         return 0;
1465 }
1466
1467 static void
1468 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1469 {
1470         int ring;
1471         struct qlcnic_host_sds_ring *sds_ring;
1472         struct qlcnic_host_tx_ring *tx_ring;
1473
1474         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1475
1476         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1477                 if (qlcnic_82xx_check(adapter) ||
1478                     (qlcnic_83xx_check(adapter) &&
1479                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1480                         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1481                                 sds_ring = &recv_ctx->sds_rings[ring];
1482                                 free_irq(sds_ring->irq, sds_ring);
1483                         }
1484                 }
1485                 if (qlcnic_83xx_check(adapter) &&
1486                     !(adapter->flags & QLCNIC_TX_INTR_SHARED)) {
1487                         for (ring = 0; ring < adapter->max_drv_tx_rings;
1488                              ring++) {
1489                                 tx_ring = &adapter->tx_ring[ring];
1490                                 if (tx_ring->irq)
1491                                         free_irq(tx_ring->irq, tx_ring);
1492                         }
1493                 }
1494         }
1495 }
1496
1497 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1498 {
1499         u32 capab = 0;
1500
1501         if (qlcnic_82xx_check(adapter)) {
1502                 if (adapter->ahw->extra_capability[0] &
1503                     QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1504                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1505         } else {
1506                 capab = adapter->ahw->capabilities;
1507                 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1508                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1509         }
1510 }
1511
1512 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1513 {
1514         int ring;
1515         struct qlcnic_host_rds_ring *rds_ring;
1516
1517         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1518                 return -EIO;
1519
1520         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1521                 return 0;
1522         if (qlcnic_set_eswitch_port_config(adapter))
1523                 return -EIO;
1524         qlcnic_get_lro_mss_capability(adapter);
1525
1526         if (qlcnic_fw_create_ctx(adapter))
1527                 return -EIO;
1528
1529         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1530                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1531                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1532         }
1533
1534         qlcnic_set_multi(netdev);
1535         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1536
1537         adapter->ahw->linkup = 0;
1538
1539         if (adapter->max_sds_rings > 1)
1540                 qlcnic_config_rss(adapter, 1);
1541
1542         qlcnic_config_intr_coalesce(adapter);
1543
1544         if (netdev->features & NETIF_F_LRO)
1545                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1546
1547         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1548         qlcnic_napi_enable(adapter);
1549
1550         qlcnic_linkevent_request(adapter, 1);
1551
1552         adapter->ahw->reset_context = 0;
1553         return 0;
1554 }
1555
1556 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1557 {
1558         int err = 0;
1559
1560         rtnl_lock();
1561         if (netif_running(netdev))
1562                 err = __qlcnic_up(adapter, netdev);
1563         rtnl_unlock();
1564
1565         return err;
1566 }
1567
1568 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1569 {
1570         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1571                 return;
1572
1573         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1574                 return;
1575
1576         if (qlcnic_sriov_vf_check(adapter))
1577                 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1578         smp_mb();
1579         spin_lock(&adapter->tx_clean_lock);
1580         netif_carrier_off(netdev);
1581         adapter->ahw->linkup = 0;
1582         netif_tx_disable(netdev);
1583
1584         qlcnic_free_mac_list(adapter);
1585
1586         if (adapter->fhash.fnum)
1587                 qlcnic_delete_lb_filters(adapter);
1588
1589         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1590
1591         qlcnic_napi_disable(adapter);
1592
1593         qlcnic_fw_destroy_ctx(adapter);
1594         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1595
1596         qlcnic_reset_rx_buffers_list(adapter);
1597         qlcnic_release_tx_buffers(adapter);
1598         spin_unlock(&adapter->tx_clean_lock);
1599 }
1600
1601 /* Usage: During suspend and firmware recovery module */
1602
1603 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1604 {
1605         rtnl_lock();
1606         if (netif_running(netdev))
1607                 __qlcnic_down(adapter, netdev);
1608         rtnl_unlock();
1609
1610 }
1611
1612 int
1613 qlcnic_attach(struct qlcnic_adapter *adapter)
1614 {
1615         struct net_device *netdev = adapter->netdev;
1616         struct pci_dev *pdev = adapter->pdev;
1617         int err;
1618
1619         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1620                 return 0;
1621
1622         err = qlcnic_napi_add(adapter, netdev);
1623         if (err)
1624                 return err;
1625
1626         err = qlcnic_alloc_sw_resources(adapter);
1627         if (err) {
1628                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1629                 goto err_out_napi_del;
1630         }
1631
1632         err = qlcnic_alloc_hw_resources(adapter);
1633         if (err) {
1634                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1635                 goto err_out_free_sw;
1636         }
1637
1638         err = qlcnic_request_irq(adapter);
1639         if (err) {
1640                 dev_err(&pdev->dev, "failed to setup interrupt\n");
1641                 goto err_out_free_hw;
1642         }
1643
1644         qlcnic_create_sysfs_entries(adapter);
1645
1646         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1647         return 0;
1648
1649 err_out_free_hw:
1650         qlcnic_free_hw_resources(adapter);
1651 err_out_free_sw:
1652         qlcnic_free_sw_resources(adapter);
1653 err_out_napi_del:
1654         qlcnic_napi_del(adapter);
1655         return err;
1656 }
1657
1658 void qlcnic_detach(struct qlcnic_adapter *adapter)
1659 {
1660         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1661                 return;
1662
1663         qlcnic_remove_sysfs_entries(adapter);
1664
1665         qlcnic_free_hw_resources(adapter);
1666         qlcnic_release_rx_buffers(adapter);
1667         qlcnic_free_irq(adapter);
1668         qlcnic_napi_del(adapter);
1669         qlcnic_free_sw_resources(adapter);
1670
1671         adapter->is_up = 0;
1672 }
1673
1674 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1675 {
1676         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1677         struct qlcnic_host_sds_ring *sds_ring;
1678         int ring;
1679
1680         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1681         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1682                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1683                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1684                         qlcnic_disable_int(sds_ring);
1685                 }
1686         }
1687
1688         qlcnic_fw_destroy_ctx(adapter);
1689
1690         qlcnic_detach(adapter);
1691
1692         adapter->ahw->diag_test = 0;
1693         adapter->max_sds_rings = max_sds_rings;
1694
1695         if (qlcnic_attach(adapter))
1696                 goto out;
1697
1698         if (netif_running(netdev))
1699                 __qlcnic_up(adapter, netdev);
1700 out:
1701         netif_device_attach(netdev);
1702 }
1703
1704 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
1705 {
1706         struct qlcnic_hardware_context *ahw = adapter->ahw;
1707         int err = 0;
1708
1709         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
1710                                 GFP_KERNEL);
1711         if (!adapter->recv_ctx) {
1712                 err = -ENOMEM;
1713                 goto err_out;
1714         }
1715         /* Initialize interrupt coalesce parameters */
1716         ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1717         ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1718         ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1719         ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1720         if (qlcnic_83xx_check(adapter)) {
1721                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1722                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1723         }
1724         /* clear stats */
1725         memset(&adapter->stats, 0, sizeof(adapter->stats));
1726 err_out:
1727         return err;
1728 }
1729
1730 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
1731 {
1732         kfree(adapter->recv_ctx);
1733         adapter->recv_ctx = NULL;
1734
1735         if (adapter->ahw->fw_dump.tmpl_hdr) {
1736                 vfree(adapter->ahw->fw_dump.tmpl_hdr);
1737                 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1738         }
1739
1740         kfree(adapter->ahw->reset.buff);
1741         adapter->ahw->fw_dump.tmpl_hdr = NULL;
1742 }
1743
1744 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1745 {
1746         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1747         struct qlcnic_host_sds_ring *sds_ring;
1748         struct qlcnic_host_rds_ring *rds_ring;
1749         int ring;
1750         int ret;
1751
1752         netif_device_detach(netdev);
1753
1754         if (netif_running(netdev))
1755                 __qlcnic_down(adapter, netdev);
1756
1757         qlcnic_detach(adapter);
1758
1759         adapter->max_sds_rings = 1;
1760         adapter->ahw->diag_test = test;
1761         adapter->ahw->linkup = 0;
1762
1763         ret = qlcnic_attach(adapter);
1764         if (ret) {
1765                 netif_device_attach(netdev);
1766                 return ret;
1767         }
1768
1769         ret = qlcnic_fw_create_ctx(adapter);
1770         if (ret) {
1771                 qlcnic_detach(adapter);
1772                 netif_device_attach(netdev);
1773                 return ret;
1774         }
1775
1776         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1777                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1778                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1779         }
1780
1781         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1782                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1783                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1784                         qlcnic_enable_int(sds_ring);
1785                 }
1786         }
1787
1788         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
1789                 adapter->ahw->loopback_state = 0;
1790                 qlcnic_linkevent_request(adapter, 1);
1791         }
1792
1793         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1794
1795         return 0;
1796 }
1797
1798 /* Reset context in hardware only */
1799 static int
1800 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1801 {
1802         struct net_device *netdev = adapter->netdev;
1803
1804         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1805                 return -EBUSY;
1806
1807         netif_device_detach(netdev);
1808
1809         qlcnic_down(adapter, netdev);
1810
1811         qlcnic_up(adapter, netdev);
1812
1813         netif_device_attach(netdev);
1814
1815         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1816         dev_err(&adapter->pdev->dev, "%s:\n", __func__);
1817         return 0;
1818 }
1819
1820 int
1821 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1822 {
1823         int err = 0;
1824         struct net_device *netdev = adapter->netdev;
1825
1826         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1827                 return -EBUSY;
1828
1829         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1830
1831                 netif_device_detach(netdev);
1832
1833                 if (netif_running(netdev))
1834                         __qlcnic_down(adapter, netdev);
1835
1836                 qlcnic_detach(adapter);
1837
1838                 if (netif_running(netdev)) {
1839                         err = qlcnic_attach(adapter);
1840                         if (!err) {
1841                                 __qlcnic_up(adapter, netdev);
1842                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1843                         }
1844                 }
1845
1846                 netif_device_attach(netdev);
1847         }
1848
1849         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1850         return err;
1851 }
1852
1853 void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
1854 {
1855         struct qlcnic_hardware_context *ahw = adapter->ahw;
1856         u16 act_pci_fn = ahw->act_pci_func;
1857         u16 count;
1858
1859         ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
1860         if (act_pci_fn <= 2)
1861                 count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
1862                          act_pci_fn;
1863         else
1864                 count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
1865                          act_pci_fn;
1866         ahw->max_uc_count = count;
1867 }
1868
1869 int
1870 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
1871                     int pci_using_dac)
1872 {
1873         int err;
1874         struct pci_dev *pdev = adapter->pdev;
1875
1876         adapter->rx_csum = 1;
1877         adapter->ahw->mc_enabled = 0;
1878         qlcnic_set_mac_filter_count(adapter);
1879
1880         netdev->netdev_ops         = &qlcnic_netdev_ops;
1881         netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
1882
1883         qlcnic_change_mtu(netdev, netdev->mtu);
1884
1885         if (qlcnic_sriov_vf_check(adapter))
1886                 SET_ETHTOOL_OPS(netdev, &qlcnic_sriov_vf_ethtool_ops);
1887         else
1888                 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1889
1890         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
1891                              NETIF_F_IPV6_CSUM | NETIF_F_GRO |
1892                              NETIF_F_HW_VLAN_CTAG_RX);
1893         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1894                                   NETIF_F_IPV6_CSUM);
1895
1896         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
1897                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
1898                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
1899         }
1900
1901         if (pci_using_dac) {
1902                 netdev->features |= NETIF_F_HIGHDMA;
1903                 netdev->vlan_features |= NETIF_F_HIGHDMA;
1904         }
1905
1906         if (qlcnic_vlan_tx_check(adapter))
1907                 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
1908
1909         if (qlcnic_sriov_vf_check(adapter))
1910                 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
1911
1912         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1913                 netdev->features |= NETIF_F_LRO;
1914
1915         netdev->hw_features = netdev->features;
1916         netdev->priv_flags |= IFF_UNICAST_FLT;
1917         netdev->irq = adapter->msix_entries[0].vector;
1918
1919         err = register_netdev(netdev);
1920         if (err) {
1921                 dev_err(&pdev->dev, "failed to register net device\n");
1922                 return err;
1923         }
1924
1925         return 0;
1926 }
1927
1928 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
1929 {
1930         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1931                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1932                 *pci_using_dac = 1;
1933         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1934                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1935                 *pci_using_dac = 0;
1936         else {
1937                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1938                 return -EIO;
1939         }
1940
1941         return 0;
1942 }
1943
1944 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
1945 {
1946         int ring;
1947         struct qlcnic_host_tx_ring *tx_ring;
1948
1949         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1950                 tx_ring = &adapter->tx_ring[ring];
1951                 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
1952                         vfree(tx_ring->cmd_buf_arr);
1953                         tx_ring->cmd_buf_arr = NULL;
1954                 }
1955         }
1956         if (adapter->tx_ring != NULL)
1957                 kfree(adapter->tx_ring);
1958 }
1959
1960 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
1961                           struct net_device *netdev)
1962 {
1963         int ring, vector, index;
1964         struct qlcnic_host_tx_ring *tx_ring;
1965         struct qlcnic_cmd_buffer *cmd_buf_arr;
1966
1967         tx_ring = kcalloc(adapter->max_drv_tx_rings,
1968                           sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
1969         if (tx_ring == NULL)
1970                 return -ENOMEM;
1971
1972         adapter->tx_ring = tx_ring;
1973
1974         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1975                 tx_ring = &adapter->tx_ring[ring];
1976                 tx_ring->num_desc = adapter->num_txd;
1977                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
1978                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
1979                 if (cmd_buf_arr == NULL) {
1980                         qlcnic_free_tx_rings(adapter);
1981                         return -ENOMEM;
1982                 }
1983                 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
1984                 tx_ring->cmd_buf_arr = cmd_buf_arr;
1985         }
1986
1987         if (qlcnic_83xx_check(adapter)) {
1988                 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1989                         tx_ring = &adapter->tx_ring[ring];
1990                         tx_ring->adapter = adapter;
1991                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
1992                                 index = adapter->max_sds_rings + ring;
1993                                 vector = adapter->msix_entries[index].vector;
1994                                 tx_ring->irq = vector;
1995                         }
1996                 }
1997         }
1998         return 0;
1999 }
2000
2001 void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
2002 {
2003         struct qlcnic_hardware_context *ahw = adapter->ahw;
2004         u32 fw_cmd = 0;
2005
2006         if (qlcnic_82xx_check(adapter))
2007                 fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
2008         else if (qlcnic_83xx_check(adapter))
2009                 fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
2010
2011         if ((ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) &&
2012             (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER))
2013                 qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
2014 }
2015
2016 static int
2017 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2018 {
2019         struct net_device *netdev = NULL;
2020         struct qlcnic_adapter *adapter = NULL;
2021         struct qlcnic_hardware_context *ahw;
2022         int err, pci_using_dac = -1;
2023         char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
2024
2025         if (pdev->is_virtfn)
2026                 return -ENODEV;
2027
2028         err = pci_enable_device(pdev);
2029         if (err)
2030                 return err;
2031
2032         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2033                 err = -ENODEV;
2034                 goto err_out_disable_pdev;
2035         }
2036
2037         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
2038         if (err)
2039                 goto err_out_disable_pdev;
2040
2041         err = pci_request_regions(pdev, qlcnic_driver_name);
2042         if (err)
2043                 goto err_out_disable_pdev;
2044
2045         pci_set_master(pdev);
2046         pci_enable_pcie_error_reporting(pdev);
2047
2048         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2049         if (!ahw) {
2050                 err = -ENOMEM;
2051                 goto err_out_free_res;
2052         }
2053
2054         switch (ent->device) {
2055         case PCI_DEVICE_ID_QLOGIC_QLE824X:
2056                 ahw->hw_ops = &qlcnic_hw_ops;
2057                 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2058                 break;
2059         case PCI_DEVICE_ID_QLOGIC_QLE834X:
2060         case PCI_DEVICE_ID_QLOGIC_QLE844X:
2061                 qlcnic_83xx_register_map(ahw);
2062                 break;
2063         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2064         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2065                 qlcnic_sriov_vf_register_map(ahw);
2066                 break;
2067         default:
2068                 goto err_out_free_hw_res;
2069         }
2070
2071         err = qlcnic_setup_pci_map(pdev, ahw);
2072         if (err)
2073                 goto err_out_free_hw_res;
2074
2075         netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
2076         if (!netdev) {
2077                 err = -ENOMEM;
2078                 goto err_out_iounmap;
2079         }
2080
2081         SET_NETDEV_DEV(netdev, &pdev->dev);
2082
2083         adapter = netdev_priv(netdev);
2084         adapter->netdev  = netdev;
2085         adapter->pdev    = pdev;
2086         adapter->ahw = ahw;
2087
2088         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2089         if (adapter->qlcnic_wq == NULL) {
2090                 err = -ENOMEM;
2091                 dev_err(&pdev->dev, "Failed to create workqueue\n");
2092                 goto err_out_free_netdev;
2093         }
2094
2095         err = qlcnic_alloc_adapter_resources(adapter);
2096         if (err)
2097                 goto err_out_free_netdev;
2098
2099         adapter->dev_rst_time = jiffies;
2100         adapter->ahw->revision_id = pdev->revision;
2101         if (qlcnic_mac_learn == FDB_MAC_LEARN)
2102                 adapter->fdb_mac_learn = true;
2103         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2104                 adapter->drv_mac_learn = true;
2105         adapter->max_drv_tx_rings = 1;
2106
2107         rwlock_init(&adapter->ahw->crb_lock);
2108         mutex_init(&adapter->ahw->mem_lock);
2109
2110         spin_lock_init(&adapter->tx_clean_lock);
2111         INIT_LIST_HEAD(&adapter->mac_list);
2112
2113         if (qlcnic_82xx_check(adapter)) {
2114                 qlcnic_check_vf(adapter, ent);
2115                 adapter->portnum = adapter->ahw->pci_func;
2116                 err = qlcnic_start_firmware(adapter);
2117                 if (err) {
2118                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
2119                         goto err_out_free_hw;
2120                 }
2121
2122                 err = qlcnic_setup_idc_param(adapter);
2123                 if (err)
2124                         goto err_out_free_hw;
2125
2126                 adapter->flags |= QLCNIC_NEED_FLR;
2127         } else if (qlcnic_83xx_check(adapter)) {
2128                 qlcnic_83xx_check_vf(adapter, ent);
2129                 adapter->portnum = adapter->ahw->pci_func;
2130                 err = qlcnic_83xx_init(adapter, pci_using_dac);
2131                 if (err) {
2132                         dev_err(&pdev->dev, "%s: failed\n", __func__);
2133                         goto err_out_free_hw;
2134                 }
2135                 if (qlcnic_sriov_vf_check(adapter))
2136                         return 0;
2137         } else {
2138                 dev_err(&pdev->dev,
2139                         "%s: failed. Please Reboot\n", __func__);
2140                 goto err_out_free_hw;
2141         }
2142
2143         if (qlcnic_read_mac_addr(adapter))
2144                 dev_warn(&pdev->dev, "failed to read mac addr\n");
2145
2146         if (adapter->portnum == 0) {
2147                 qlcnic_get_board_name(adapter, board_name);
2148
2149                 pr_info("%s: %s Board Chip rev 0x%x\n",
2150                         module_name(THIS_MODULE),
2151                         board_name, adapter->ahw->revision_id);
2152         }
2153
2154         if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2155             !!qlcnic_use_msi)
2156                 dev_warn(&pdev->dev,
2157                          "Device does not support MSI interrupts\n");
2158
2159         if (qlcnic_82xx_check(adapter)) {
2160                 err = qlcnic_setup_intr(adapter, 0);
2161                 if (err) {
2162                         dev_err(&pdev->dev, "Failed to setup interrupt\n");
2163                         goto err_out_disable_msi;
2164                 }
2165         }
2166
2167         err = qlcnic_get_act_pci_func(adapter);
2168         if (err)
2169                 goto err_out_disable_mbx_intr;
2170
2171         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2172         if (err)
2173                 goto err_out_disable_mbx_intr;
2174
2175         if (adapter->portnum == 0)
2176                 qlcnic_set_drv_version(adapter);
2177
2178         pci_set_drvdata(pdev, adapter);
2179
2180         if (qlcnic_82xx_check(adapter))
2181                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2182                                      FW_POLL_DELAY);
2183
2184         switch (adapter->ahw->port_type) {
2185         case QLCNIC_GBE:
2186                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2187                                 adapter->netdev->name);
2188                 break;
2189         case QLCNIC_XGBE:
2190                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2191                                 adapter->netdev->name);
2192                 break;
2193         }
2194
2195         if (adapter->drv_mac_learn)
2196                 qlcnic_alloc_lb_filters_mem(adapter);
2197
2198         qlcnic_add_sysfs(adapter);
2199
2200         return 0;
2201
2202 err_out_disable_mbx_intr:
2203         if (qlcnic_83xx_check(adapter))
2204                 qlcnic_83xx_free_mbx_intr(adapter);
2205
2206 err_out_disable_msi:
2207         qlcnic_teardown_intr(adapter);
2208         qlcnic_cancel_idc_work(adapter);
2209         qlcnic_clr_all_drv_state(adapter, 0);
2210
2211 err_out_free_hw:
2212         qlcnic_free_adapter_resources(adapter);
2213
2214 err_out_free_netdev:
2215         free_netdev(netdev);
2216
2217 err_out_iounmap:
2218         qlcnic_cleanup_pci_map(ahw);
2219
2220 err_out_free_hw_res:
2221         kfree(ahw);
2222
2223 err_out_free_res:
2224         pci_release_regions(pdev);
2225
2226 err_out_disable_pdev:
2227         pci_set_drvdata(pdev, NULL);
2228         pci_disable_device(pdev);
2229         return err;
2230 }
2231
2232 static void qlcnic_remove(struct pci_dev *pdev)
2233 {
2234         struct qlcnic_adapter *adapter;
2235         struct net_device *netdev;
2236         struct qlcnic_hardware_context *ahw;
2237
2238         adapter = pci_get_drvdata(pdev);
2239         if (adapter == NULL)
2240                 return;
2241
2242         netdev = adapter->netdev;
2243         qlcnic_sriov_pf_disable(adapter);
2244
2245         qlcnic_cancel_idc_work(adapter);
2246         ahw = adapter->ahw;
2247
2248         unregister_netdev(netdev);
2249         qlcnic_sriov_cleanup(adapter);
2250
2251         if (qlcnic_83xx_check(adapter)) {
2252                 qlcnic_83xx_register_nic_idc_func(adapter, 0);
2253                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2254                 qlcnic_83xx_free_mbx_intr(adapter);
2255                 qlcnic_83xx_detach_mailbox_work(adapter);
2256                 qlcnic_83xx_free_mailbox(ahw->mailbox);
2257         }
2258
2259         qlcnic_detach(adapter);
2260
2261         if (adapter->npars != NULL)
2262                 kfree(adapter->npars);
2263         if (adapter->eswitch != NULL)
2264                 kfree(adapter->eswitch);
2265
2266         if (qlcnic_82xx_check(adapter))
2267                 qlcnic_clr_all_drv_state(adapter, 0);
2268
2269         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2270
2271         qlcnic_free_lb_filters_mem(adapter);
2272
2273         qlcnic_teardown_intr(adapter);
2274
2275         qlcnic_remove_sysfs(adapter);
2276
2277         qlcnic_cleanup_pci_map(adapter->ahw);
2278
2279         qlcnic_release_firmware(adapter);
2280
2281         pci_disable_pcie_error_reporting(pdev);
2282         pci_release_regions(pdev);
2283         pci_disable_device(pdev);
2284         pci_set_drvdata(pdev, NULL);
2285
2286         if (adapter->qlcnic_wq) {
2287                 destroy_workqueue(adapter->qlcnic_wq);
2288                 adapter->qlcnic_wq = NULL;
2289         }
2290         qlcnic_free_adapter_resources(adapter);
2291         kfree(ahw);
2292         free_netdev(netdev);
2293 }
2294
2295 static void qlcnic_shutdown(struct pci_dev *pdev)
2296 {
2297         if (__qlcnic_shutdown(pdev))
2298                 return;
2299
2300         pci_disable_device(pdev);
2301 }
2302
2303 #ifdef CONFIG_PM
2304 static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2305 {
2306         int retval;
2307
2308         retval = __qlcnic_shutdown(pdev);
2309         if (retval)
2310                 return retval;
2311
2312         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2313         return 0;
2314 }
2315
2316 static int qlcnic_resume(struct pci_dev *pdev)
2317 {
2318         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2319         int err;
2320
2321         err = pci_enable_device(pdev);
2322         if (err)
2323                 return err;
2324
2325         pci_set_power_state(pdev, PCI_D0);
2326         pci_set_master(pdev);
2327         pci_restore_state(pdev);
2328
2329         return  __qlcnic_resume(adapter);
2330 }
2331 #endif
2332
2333 static int qlcnic_open(struct net_device *netdev)
2334 {
2335         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2336         int err;
2337
2338         netif_carrier_off(netdev);
2339
2340         err = qlcnic_attach(adapter);
2341         if (err)
2342                 return err;
2343
2344         err = __qlcnic_up(adapter, netdev);
2345         if (err)
2346                 goto err_out;
2347
2348         netif_start_queue(netdev);
2349
2350         return 0;
2351
2352 err_out:
2353         qlcnic_detach(adapter);
2354         return err;
2355 }
2356
2357 /*
2358  * qlcnic_close - Disables a network interface entry point
2359  */
2360 static int qlcnic_close(struct net_device *netdev)
2361 {
2362         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2363
2364         __qlcnic_down(adapter, netdev);
2365
2366         return 0;
2367 }
2368
2369 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2370 {
2371         void *head;
2372         int i;
2373         struct net_device *netdev = adapter->netdev;
2374         u32 filter_size = 0;
2375         u16 act_pci_func = 0;
2376
2377         if (adapter->fhash.fmax && adapter->fhash.fhead)
2378                 return;
2379
2380         act_pci_func = adapter->ahw->act_pci_func;
2381         spin_lock_init(&adapter->mac_learn_lock);
2382         spin_lock_init(&adapter->rx_mac_learn_lock);
2383
2384         if (qlcnic_82xx_check(adapter)) {
2385                 filter_size = QLCNIC_LB_MAX_FILTERS;
2386                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2387         } else {
2388                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2389                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2390         }
2391
2392         head = kcalloc(adapter->fhash.fbucket_size,
2393                        sizeof(struct hlist_head), GFP_ATOMIC);
2394
2395         if (!head)
2396                 return;
2397
2398         adapter->fhash.fmax = (filter_size / act_pci_func);
2399         adapter->fhash.fhead = head;
2400
2401         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2402                     act_pci_func, adapter->fhash.fmax);
2403
2404         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2405                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2406
2407         adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2408
2409         head = kcalloc(adapter->rx_fhash.fbucket_size,
2410                        sizeof(struct hlist_head), GFP_ATOMIC);
2411
2412         if (!head)
2413                 return;
2414
2415         adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2416         adapter->rx_fhash.fhead = head;
2417
2418         for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2419                 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2420 }
2421
2422 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2423 {
2424         if (adapter->fhash.fmax && adapter->fhash.fhead)
2425                 kfree(adapter->fhash.fhead);
2426
2427         adapter->fhash.fhead = NULL;
2428         adapter->fhash.fmax = 0;
2429
2430         if (adapter->rx_fhash.fmax && adapter->rx_fhash.fhead)
2431                 kfree(adapter->rx_fhash.fhead);
2432
2433         adapter->rx_fhash.fmax = 0;
2434         adapter->rx_fhash.fhead = NULL;
2435 }
2436
2437 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2438 {
2439         struct net_device *netdev = adapter->netdev;
2440         u32 temp_state, temp_val, temp = 0;
2441         int rv = 0;
2442
2443         if (qlcnic_83xx_check(adapter))
2444                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2445
2446         if (qlcnic_82xx_check(adapter))
2447                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2448
2449         temp_state = qlcnic_get_temp_state(temp);
2450         temp_val = qlcnic_get_temp_val(temp);
2451
2452         if (temp_state == QLCNIC_TEMP_PANIC) {
2453                 dev_err(&netdev->dev,
2454                        "Device temperature %d degrees C exceeds"
2455                        " maximum allowed. Hardware has been shut down.\n",
2456                        temp_val);
2457                 rv = 1;
2458         } else if (temp_state == QLCNIC_TEMP_WARN) {
2459                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2460                         dev_err(&netdev->dev,
2461                                "Device temperature %d degrees C "
2462                                "exceeds operating range."
2463                                " Immediate action needed.\n",
2464                                temp_val);
2465                 }
2466         } else {
2467                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2468                         dev_info(&netdev->dev,
2469                                "Device temperature is now %d degrees C"
2470                                " in normal range.\n", temp_val);
2471                 }
2472         }
2473         adapter->ahw->temp = temp_state;
2474         return rv;
2475 }
2476
2477 static void qlcnic_tx_timeout(struct net_device *netdev)
2478 {
2479         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2480
2481         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2482                 return;
2483
2484         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS) {
2485                 netdev_info(netdev, "Tx timeout, reset the adapter.\n");
2486                 if (qlcnic_82xx_check(adapter))
2487                         adapter->need_fw_reset = 1;
2488                 else if (qlcnic_83xx_check(adapter))
2489                         qlcnic_83xx_idc_request_reset(adapter,
2490                                                       QLCNIC_FORCE_FW_DUMP_KEY);
2491         } else {
2492                 netdev_info(netdev, "Tx timeout, reset adapter context.\n");
2493                 adapter->ahw->reset_context = 1;
2494         }
2495 }
2496
2497 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2498 {
2499         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2500         struct net_device_stats *stats = &netdev->stats;
2501
2502         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2503         stats->tx_packets = adapter->stats.xmitfinished;
2504         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2505         stats->tx_bytes = adapter->stats.txbytes;
2506         stats->rx_dropped = adapter->stats.rxdropped;
2507         stats->tx_dropped = adapter->stats.txdropped;
2508
2509         return stats;
2510 }
2511
2512 irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
2513 {
2514         u32 status;
2515
2516         status = readl(adapter->isr_int_vec);
2517
2518         if (!(status & adapter->ahw->int_vec_bit))
2519                 return IRQ_NONE;
2520
2521         /* check interrupt state machine, to be sure */
2522         status = readl(adapter->crb_int_state_reg);
2523         if (!ISR_LEGACY_INT_TRIGGERED(status))
2524                 return IRQ_NONE;
2525
2526         writel(0xffffffff, adapter->tgt_status_reg);
2527         /* read twice to ensure write is flushed */
2528         readl(adapter->isr_int_vec);
2529         readl(adapter->isr_int_vec);
2530
2531         return IRQ_HANDLED;
2532 }
2533
2534 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2535 {
2536         struct qlcnic_host_sds_ring *sds_ring = data;
2537         struct qlcnic_adapter *adapter = sds_ring->adapter;
2538
2539         if (adapter->flags & QLCNIC_MSIX_ENABLED)
2540                 goto done;
2541         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2542                 writel(0xffffffff, adapter->tgt_status_reg);
2543                 goto done;
2544         }
2545
2546         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2547                 return IRQ_NONE;
2548
2549 done:
2550         adapter->ahw->diag_cnt++;
2551         qlcnic_enable_int(sds_ring);
2552         return IRQ_HANDLED;
2553 }
2554
2555 static irqreturn_t qlcnic_intr(int irq, void *data)
2556 {
2557         struct qlcnic_host_sds_ring *sds_ring = data;
2558         struct qlcnic_adapter *adapter = sds_ring->adapter;
2559
2560         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2561                 return IRQ_NONE;
2562
2563         napi_schedule(&sds_ring->napi);
2564
2565         return IRQ_HANDLED;
2566 }
2567
2568 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2569 {
2570         struct qlcnic_host_sds_ring *sds_ring = data;
2571         struct qlcnic_adapter *adapter = sds_ring->adapter;
2572
2573         /* clear interrupt */
2574         writel(0xffffffff, adapter->tgt_status_reg);
2575
2576         napi_schedule(&sds_ring->napi);
2577         return IRQ_HANDLED;
2578 }
2579
2580 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2581 {
2582         struct qlcnic_host_sds_ring *sds_ring = data;
2583
2584         napi_schedule(&sds_ring->napi);
2585         return IRQ_HANDLED;
2586 }
2587
2588 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
2589 {
2590         struct qlcnic_host_tx_ring *tx_ring = data;
2591
2592         napi_schedule(&tx_ring->napi);
2593         return IRQ_HANDLED;
2594 }
2595
2596 #ifdef CONFIG_NET_POLL_CONTROLLER
2597 static void qlcnic_poll_controller(struct net_device *netdev)
2598 {
2599         int ring;
2600         struct qlcnic_host_sds_ring *sds_ring;
2601         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2602         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2603
2604         disable_irq(adapter->irq);
2605         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2606                 sds_ring = &recv_ctx->sds_rings[ring];
2607                 qlcnic_intr(adapter->irq, sds_ring);
2608         }
2609         enable_irq(adapter->irq);
2610 }
2611 #endif
2612
2613 static void
2614 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2615 {
2616         u32 val;
2617
2618         val = adapter->portnum & 0xf;
2619         val |= encoding << 7;
2620         val |= (jiffies - adapter->dev_rst_time) << 8;
2621
2622         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2623         adapter->dev_rst_time = jiffies;
2624 }
2625
2626 static int
2627 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2628 {
2629         u32  val;
2630
2631         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2632                         state != QLCNIC_DEV_NEED_QUISCENT);
2633
2634         if (qlcnic_api_lock(adapter))
2635                 return -EIO;
2636
2637         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2638
2639         if (state == QLCNIC_DEV_NEED_RESET)
2640                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2641         else if (state == QLCNIC_DEV_NEED_QUISCENT)
2642                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2643
2644         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2645
2646         qlcnic_api_unlock(adapter);
2647
2648         return 0;
2649 }
2650
2651 static int
2652 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2653 {
2654         u32  val;
2655
2656         if (qlcnic_api_lock(adapter))
2657                 return -EBUSY;
2658
2659         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2660         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2661         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2662
2663         qlcnic_api_unlock(adapter);
2664
2665         return 0;
2666 }
2667
2668 void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2669 {
2670         u32  val;
2671
2672         if (qlcnic_api_lock(adapter))
2673                 goto err;
2674
2675         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2676         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2677         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2678
2679         if (failed) {
2680                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2681                                     QLCNIC_DEV_FAILED);
2682                 dev_info(&adapter->pdev->dev,
2683                                 "Device state set to Failed. Please Reboot\n");
2684         } else if (!(val & 0x11111111))
2685                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2686                                     QLCNIC_DEV_COLD);
2687
2688         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2689         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2690         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2691
2692         qlcnic_api_unlock(adapter);
2693 err:
2694         adapter->fw_fail_cnt = 0;
2695         adapter->flags &= ~QLCNIC_FW_HANG;
2696         clear_bit(__QLCNIC_START_FW, &adapter->state);
2697         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2698 }
2699
2700 /* Grab api lock, before checking state */
2701 static int
2702 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2703 {
2704         int act, state, active_mask;
2705         struct qlcnic_hardware_context *ahw = adapter->ahw;
2706
2707         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2708         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2709
2710         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
2711                 active_mask = (~(1 << (ahw->pci_func * 4)));
2712                 act = act & active_mask;
2713         }
2714
2715         if (((state & 0x11111111) == (act & 0x11111111)) ||
2716                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2717                 return 0;
2718         else
2719                 return 1;
2720 }
2721
2722 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2723 {
2724         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2725
2726         if (val != QLCNIC_DRV_IDC_VER) {
2727                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2728                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2729         }
2730
2731         return 0;
2732 }
2733
2734 static int
2735 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2736 {
2737         u32 val, prev_state;
2738         u8 dev_init_timeo = adapter->dev_init_timeo;
2739         u8 portnum = adapter->portnum;
2740         u8 ret;
2741
2742         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2743                 return 1;
2744
2745         if (qlcnic_api_lock(adapter))
2746                 return -1;
2747
2748         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2749         if (!(val & (1 << (portnum * 4)))) {
2750                 QLC_DEV_SET_REF_CNT(val, portnum);
2751                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2752         }
2753
2754         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2755         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2756
2757         switch (prev_state) {
2758         case QLCNIC_DEV_COLD:
2759                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2760                                     QLCNIC_DEV_INITIALIZING);
2761                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
2762                                     QLCNIC_DRV_IDC_VER);
2763                 qlcnic_idc_debug_info(adapter, 0);
2764                 qlcnic_api_unlock(adapter);
2765                 return 1;
2766
2767         case QLCNIC_DEV_READY:
2768                 ret = qlcnic_check_idc_ver(adapter);
2769                 qlcnic_api_unlock(adapter);
2770                 return ret;
2771
2772         case QLCNIC_DEV_NEED_RESET:
2773                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2774                 QLC_DEV_SET_RST_RDY(val, portnum);
2775                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2776                 break;
2777
2778         case QLCNIC_DEV_NEED_QUISCENT:
2779                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2780                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
2781                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2782                 break;
2783
2784         case QLCNIC_DEV_FAILED:
2785                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
2786                 qlcnic_api_unlock(adapter);
2787                 return -1;
2788
2789         case QLCNIC_DEV_INITIALIZING:
2790         case QLCNIC_DEV_QUISCENT:
2791                 break;
2792         }
2793
2794         qlcnic_api_unlock(adapter);
2795
2796         do {
2797                 msleep(1000);
2798                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2799
2800                 if (prev_state == QLCNIC_DEV_QUISCENT)
2801                         continue;
2802         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
2803
2804         if (!dev_init_timeo) {
2805                 dev_err(&adapter->pdev->dev,
2806                         "Waiting for device to initialize timeout\n");
2807                 return -1;
2808         }
2809
2810         if (qlcnic_api_lock(adapter))
2811                 return -1;
2812
2813         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2814         QLC_DEV_CLR_RST_QSCNT(val, portnum);
2815         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2816
2817         ret = qlcnic_check_idc_ver(adapter);
2818         qlcnic_api_unlock(adapter);
2819
2820         return ret;
2821 }
2822
2823 static void
2824 qlcnic_fwinit_work(struct work_struct *work)
2825 {
2826         struct qlcnic_adapter *adapter = container_of(work,
2827                         struct qlcnic_adapter, fw_work.work);
2828         u32 dev_state = 0xf;
2829         u32 val;
2830
2831         if (qlcnic_api_lock(adapter))
2832                 goto err_ret;
2833
2834         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2835         if (dev_state == QLCNIC_DEV_QUISCENT ||
2836             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2837                 qlcnic_api_unlock(adapter);
2838                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2839                                                 FW_POLL_DELAY * 2);
2840                 return;
2841         }
2842
2843         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
2844                 qlcnic_api_unlock(adapter);
2845                 goto wait_npar;
2846         }
2847
2848         if (dev_state == QLCNIC_DEV_INITIALIZING ||
2849             dev_state == QLCNIC_DEV_READY) {
2850                 dev_info(&adapter->pdev->dev, "Detected state change from "
2851                                 "DEV_NEED_RESET, skipping ack check\n");
2852                 goto skip_ack_check;
2853         }
2854
2855         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2856                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2857                                         adapter->reset_ack_timeo);
2858                 goto skip_ack_check;
2859         }
2860
2861         if (!qlcnic_check_drv_state(adapter)) {
2862 skip_ack_check:
2863                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2864
2865                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2866                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2867                                             QLCNIC_DEV_INITIALIZING);
2868                         set_bit(__QLCNIC_START_FW, &adapter->state);
2869                         QLCDB(adapter, DRV, "Restarting fw\n");
2870                         qlcnic_idc_debug_info(adapter, 0);
2871                         val = QLC_SHARED_REG_RD32(adapter,
2872                                                   QLCNIC_CRB_DRV_STATE);
2873                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2874                         QLC_SHARED_REG_WR32(adapter,
2875                                             QLCNIC_CRB_DRV_STATE, val);
2876                 }
2877
2878                 qlcnic_api_unlock(adapter);
2879
2880                 rtnl_lock();
2881                 if (adapter->ahw->fw_dump.enable &&
2882                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2883                         QLCDB(adapter, DRV, "Take FW dump\n");
2884                         qlcnic_dump_fw(adapter);
2885                         adapter->flags |= QLCNIC_FW_HANG;
2886                 }
2887                 rtnl_unlock();
2888
2889                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
2890                 if (!adapter->nic_ops->start_firmware(adapter)) {
2891                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2892                         adapter->fw_wait_cnt = 0;
2893                         return;
2894                 }
2895                 goto err_ret;
2896         }
2897
2898         qlcnic_api_unlock(adapter);
2899
2900 wait_npar:
2901         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2902         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
2903
2904         switch (dev_state) {
2905         case QLCNIC_DEV_READY:
2906                 if (!qlcnic_start_firmware(adapter)) {
2907                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2908                         adapter->fw_wait_cnt = 0;
2909                         return;
2910                 }
2911         case QLCNIC_DEV_FAILED:
2912                 break;
2913         default:
2914                 qlcnic_schedule_work(adapter,
2915                         qlcnic_fwinit_work, FW_POLL_DELAY);
2916                 return;
2917         }
2918
2919 err_ret:
2920         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2921                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
2922         netif_device_attach(adapter->netdev);
2923         qlcnic_clr_all_drv_state(adapter, 0);
2924 }
2925
2926 static void
2927 qlcnic_detach_work(struct work_struct *work)
2928 {
2929         struct qlcnic_adapter *adapter = container_of(work,
2930                         struct qlcnic_adapter, fw_work.work);
2931         struct net_device *netdev = adapter->netdev;
2932         u32 status;
2933
2934         netif_device_detach(netdev);
2935
2936         /* Dont grab rtnl lock during Quiscent mode */
2937         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2938                 if (netif_running(netdev))
2939                         __qlcnic_down(adapter, netdev);
2940         } else
2941                 qlcnic_down(adapter, netdev);
2942
2943         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2944
2945         if (status & QLCNIC_RCODE_FATAL_ERROR) {
2946                 dev_err(&adapter->pdev->dev,
2947                         "Detaching the device: peg halt status1=0x%x\n",
2948                                         status);
2949
2950                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
2951                         dev_err(&adapter->pdev->dev,
2952                         "On board active cooling fan failed. "
2953                                 "Device has been halted.\n");
2954                         dev_err(&adapter->pdev->dev,
2955                                 "Replace the adapter.\n");
2956                 }
2957
2958                 goto err_ret;
2959         }
2960
2961         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
2962                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
2963                         adapter->ahw->temp);
2964                 goto err_ret;
2965         }
2966
2967         /* Dont ack if this instance is the reset owner */
2968         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2969                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
2970                         dev_err(&adapter->pdev->dev,
2971                                 "Failed to set driver state,"
2972                                         "detaching the device.\n");
2973                         goto err_ret;
2974                 }
2975         }
2976
2977         adapter->fw_wait_cnt = 0;
2978
2979         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2980
2981         return;
2982
2983 err_ret:
2984         netif_device_attach(netdev);
2985         qlcnic_clr_all_drv_state(adapter, 1);
2986 }
2987
2988 /*Transit NPAR state to NON Operational */
2989 static void
2990 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
2991 {
2992         u32 state;
2993
2994         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2995         if (state == QLCNIC_DEV_NPAR_NON_OPER)
2996                 return;
2997
2998         if (qlcnic_api_lock(adapter))
2999                 return;
3000         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3001                             QLCNIC_DEV_NPAR_NON_OPER);
3002         qlcnic_api_unlock(adapter);
3003 }
3004
3005 void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter, u32 key)
3006 {
3007         u32 state, xg_val = 0, gb_val = 0;
3008
3009         qlcnic_xg_set_xg0_mask(xg_val);
3010         qlcnic_xg_set_xg1_mask(xg_val);
3011         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3012         qlcnic_gb_set_gb0_mask(gb_val);
3013         qlcnic_gb_set_gb1_mask(gb_val);
3014         qlcnic_gb_set_gb2_mask(gb_val);
3015         qlcnic_gb_set_gb3_mask(gb_val);
3016         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3017         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3018                                 " on all ports\n");
3019         adapter->need_fw_reset = 1;
3020
3021         if (qlcnic_api_lock(adapter))
3022                 return;
3023
3024         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3025
3026         if (state == QLCNIC_DEV_READY) {
3027                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3028                                     QLCNIC_DEV_NEED_RESET);
3029                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3030                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3031                 qlcnic_idc_debug_info(adapter, 0);
3032         }
3033
3034         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3035                             QLCNIC_DEV_NPAR_NON_OPER);
3036         qlcnic_api_unlock(adapter);
3037 }
3038
3039 /* Transit to NPAR READY state from NPAR NOT READY state */
3040 static void
3041 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3042 {
3043         if (qlcnic_api_lock(adapter))
3044                 return;
3045
3046         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3047                             QLCNIC_DEV_NPAR_OPER);
3048         QLCDB(adapter, DRV, "NPAR operational state set\n");
3049
3050         qlcnic_api_unlock(adapter);
3051 }
3052
3053 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3054                           work_func_t func, int delay)
3055 {
3056         if (test_bit(__QLCNIC_AER, &adapter->state))
3057                 return;
3058
3059         INIT_DELAYED_WORK(&adapter->fw_work, func);
3060         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3061                            round_jiffies_relative(delay));
3062 }
3063
3064 static void
3065 qlcnic_attach_work(struct work_struct *work)
3066 {
3067         struct qlcnic_adapter *adapter = container_of(work,
3068                                 struct qlcnic_adapter, fw_work.work);
3069         struct net_device *netdev = adapter->netdev;
3070         u32 npar_state;
3071
3072         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3073                 npar_state = QLC_SHARED_REG_RD32(adapter,
3074                                                  QLCNIC_CRB_DEV_NPAR_STATE);
3075                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3076                         qlcnic_clr_all_drv_state(adapter, 0);
3077                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3078                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
3079                                                         FW_POLL_DELAY);
3080                 else
3081                         goto attach;
3082                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3083                 return;
3084         }
3085 attach:
3086         if (netif_running(netdev)) {
3087                 if (qlcnic_up(adapter, netdev))
3088                         goto done;
3089
3090                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3091         }
3092
3093 done:
3094         netif_device_attach(netdev);
3095         adapter->fw_fail_cnt = 0;
3096         adapter->flags &= ~QLCNIC_FW_HANG;
3097         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3098         if (adapter->portnum == 0)
3099                 qlcnic_set_drv_version(adapter);
3100
3101         if (!qlcnic_clr_drv_state(adapter))
3102                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3103                                                         FW_POLL_DELAY);
3104 }
3105
3106 static int
3107 qlcnic_check_health(struct qlcnic_adapter *adapter)
3108 {
3109         u32 state = 0, heartbeat;
3110         u32 peg_status;
3111         int err = 0;
3112
3113         if (qlcnic_check_temp(adapter))
3114                 goto detach;
3115
3116         if (adapter->need_fw_reset)
3117                 qlcnic_dev_request_reset(adapter, 0);
3118
3119         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3120         if (state == QLCNIC_DEV_NEED_RESET) {
3121                 qlcnic_set_npar_non_operational(adapter);
3122                 adapter->need_fw_reset = 1;
3123         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3124                 goto detach;
3125
3126         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3127         if (heartbeat != adapter->heartbeat) {
3128                 adapter->heartbeat = heartbeat;
3129                 adapter->fw_fail_cnt = 0;
3130                 if (adapter->need_fw_reset)
3131                         goto detach;
3132
3133                 if (adapter->ahw->reset_context && qlcnic_auto_fw_reset)
3134                         qlcnic_reset_hw_context(adapter);
3135
3136                 return 0;
3137         }
3138
3139         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3140                 return 0;
3141
3142         adapter->flags |= QLCNIC_FW_HANG;
3143
3144         qlcnic_dev_request_reset(adapter, 0);
3145
3146         if (qlcnic_auto_fw_reset)
3147                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3148
3149         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3150         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3151         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3152                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3153                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3154                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3155                         "PEG_NET_4_PC: 0x%x\n",
3156                         peg_status,
3157                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3158                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3159                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3160                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3161                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3162                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3163         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3164                 dev_err(&adapter->pdev->dev,
3165                         "Firmware aborted with error code 0x00006700. "
3166                                 "Device is being reset.\n");
3167 detach:
3168         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3169                 QLCNIC_DEV_NEED_RESET;
3170
3171         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3172                                                       &adapter->state)) {
3173
3174                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3175                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3176         }
3177
3178         return 1;
3179 }
3180
3181 void qlcnic_fw_poll_work(struct work_struct *work)
3182 {
3183         struct qlcnic_adapter *adapter = container_of(work,
3184                                 struct qlcnic_adapter, fw_work.work);
3185
3186         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3187                 goto reschedule;
3188
3189
3190         if (qlcnic_check_health(adapter))
3191                 return;
3192
3193         if (adapter->fhash.fnum)
3194                 qlcnic_prune_lb_filters(adapter);
3195
3196 reschedule:
3197         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3198 }
3199
3200 static int qlcnic_is_first_func(struct pci_dev *pdev)
3201 {
3202         struct pci_dev *oth_pdev;
3203         int val = pdev->devfn;
3204
3205         while (val-- > 0) {
3206                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3207                         (pdev->bus), pdev->bus->number,
3208                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3209                 if (!oth_pdev)
3210                         continue;
3211
3212                 if (oth_pdev->current_state != PCI_D3cold) {
3213                         pci_dev_put(oth_pdev);
3214                         return 0;
3215                 }
3216                 pci_dev_put(oth_pdev);
3217         }
3218         return 1;
3219 }
3220
3221 static int qlcnic_attach_func(struct pci_dev *pdev)
3222 {
3223         int err, first_func;
3224         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3225         struct net_device *netdev = adapter->netdev;
3226
3227         pdev->error_state = pci_channel_io_normal;
3228
3229         err = pci_enable_device(pdev);
3230         if (err)
3231                 return err;
3232
3233         pci_set_master(pdev);
3234         pci_restore_state(pdev);
3235
3236         first_func = qlcnic_is_first_func(pdev);
3237
3238         if (qlcnic_api_lock(adapter))
3239                 return -EINVAL;
3240
3241         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3242                 adapter->need_fw_reset = 1;
3243                 set_bit(__QLCNIC_START_FW, &adapter->state);
3244                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3245                                     QLCNIC_DEV_INITIALIZING);
3246                 QLCDB(adapter, DRV, "Restarting fw\n");
3247         }
3248         qlcnic_api_unlock(adapter);
3249
3250         err = qlcnic_start_firmware(adapter);
3251         if (err)
3252                 return err;
3253
3254         qlcnic_clr_drv_state(adapter);
3255         kfree(adapter->msix_entries);
3256         adapter->msix_entries = NULL;
3257         err = qlcnic_setup_intr(adapter, 0);
3258
3259         if (err) {
3260                 kfree(adapter->msix_entries);
3261                 netdev_err(netdev, "failed to setup interrupt\n");
3262                 return err;
3263         }
3264
3265         if (qlcnic_83xx_check(adapter)) {
3266                 /* register for NIC IDC AEN Events */
3267                 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3268                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3269                 if (err) {
3270                         dev_err(&adapter->pdev->dev,
3271                                 "failed to setup mbx interrupt\n");
3272                         qlcnic_clr_all_drv_state(adapter, 1);
3273                         clear_bit(__QLCNIC_AER, &adapter->state);
3274                         goto done;
3275                 }
3276         }
3277
3278         if (netif_running(netdev)) {
3279                 err = qlcnic_attach(adapter);
3280                 if (err) {
3281                         qlcnic_clr_all_drv_state(adapter, 1);
3282                         clear_bit(__QLCNIC_AER, &adapter->state);
3283                         netif_device_attach(netdev);
3284                         return err;
3285                 }
3286
3287                 err = qlcnic_up(adapter, netdev);
3288                 if (err)
3289                         goto done;
3290
3291                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3292         }
3293  done:
3294         netif_device_attach(netdev);
3295         return err;
3296 }
3297
3298 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3299                                                 pci_channel_state_t state)
3300 {
3301         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3302         struct net_device *netdev = adapter->netdev;
3303
3304         if (state == pci_channel_io_perm_failure)
3305                 return PCI_ERS_RESULT_DISCONNECT;
3306
3307         if (state == pci_channel_io_normal)
3308                 return PCI_ERS_RESULT_RECOVERED;
3309
3310         set_bit(__QLCNIC_AER, &adapter->state);
3311         netif_device_detach(netdev);
3312
3313         cancel_delayed_work_sync(&adapter->fw_work);
3314
3315         if (netif_running(netdev))
3316                 qlcnic_down(adapter, netdev);
3317
3318         if (qlcnic_83xx_check(adapter)) {
3319                 qlcnic_83xx_free_mbx_intr(adapter);
3320                 qlcnic_83xx_register_nic_idc_func(adapter, 0);
3321                 cancel_delayed_work_sync(&adapter->idc_aen_work);
3322         }
3323
3324         qlcnic_detach(adapter);
3325         qlcnic_teardown_intr(adapter);
3326
3327         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3328
3329         pci_save_state(pdev);
3330         pci_disable_device(pdev);
3331
3332         return PCI_ERS_RESULT_NEED_RESET;
3333 }
3334
3335 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3336 {
3337         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3338                                 PCI_ERS_RESULT_RECOVERED;
3339 }
3340
3341 static void qlcnic_io_resume(struct pci_dev *pdev)
3342 {
3343         u32 state;
3344         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3345
3346         pci_cleanup_aer_uncorrect_error_status(pdev);
3347         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3348         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3349                                                             &adapter->state))
3350                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3351                                                 FW_POLL_DELAY);
3352 }
3353
3354 static int
3355 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3356 {
3357         int err;
3358
3359         err = qlcnic_can_start_firmware(adapter);
3360         if (err)
3361                 return err;
3362
3363         err = qlcnic_check_npar_opertional(adapter);
3364         if (err)
3365                 return err;
3366
3367         err = qlcnic_initialize_nic(adapter);
3368         if (err)
3369                 return err;
3370
3371         qlcnic_check_options(adapter);
3372
3373         err = qlcnic_set_eswitch_port_config(adapter);
3374         if (err)
3375                 return err;
3376
3377         adapter->need_fw_reset = 0;
3378
3379         return err;
3380 }
3381
3382 int qlcnic_validate_max_rss(struct qlcnic_adapter *adapter,
3383                             __u32 val)
3384 {
3385         struct net_device *netdev = adapter->netdev;
3386         u8 max_hw = adapter->ahw->max_rx_ques;
3387         u32 max_allowed;
3388
3389         if (val > QLC_MAX_SDS_RINGS) {
3390                 netdev_err(netdev, "RSS value should not be higher than %u\n",
3391                            QLC_MAX_SDS_RINGS);
3392                 return -EINVAL;
3393         }
3394
3395         max_allowed = rounddown_pow_of_two(min_t(int, max_hw,
3396                                                  num_online_cpus()));
3397         if ((val > max_allowed) || (val < 2) || !is_power_of_2(val)) {
3398                 if (!is_power_of_2(val))
3399                         netdev_err(netdev, "RSS value should be a power of 2\n");
3400
3401                 if (val < 2)
3402                         netdev_err(netdev, "RSS value should not be lower than 2\n");
3403
3404                 if (val > max_hw)
3405                         netdev_err(netdev,
3406                                    "RSS value should not be higher than[%u], the max RSS rings supported by the adapter\n",
3407                                    max_hw);
3408
3409                 if (val > num_online_cpus())
3410                         netdev_err(netdev,
3411                                    "RSS value should not be higher than[%u], number of online CPUs in the system\n",
3412                                    num_online_cpus());
3413
3414                 netdev_err(netdev, "Unable to configure %u RSS rings\n", val);
3415
3416                 return -EINVAL;
3417         }
3418         return 0;
3419 }
3420
3421 int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data, size_t len)
3422 {
3423         int err;
3424         struct net_device *netdev = adapter->netdev;
3425
3426         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3427                 return -EBUSY;
3428
3429         netif_device_detach(netdev);
3430         if (netif_running(netdev))
3431                 __qlcnic_down(adapter, netdev);
3432
3433         qlcnic_detach(adapter);
3434
3435         if (qlcnic_83xx_check(adapter)) {
3436                 qlcnic_83xx_free_mbx_intr(adapter);
3437                 qlcnic_83xx_enable_mbx_poll(adapter);
3438         }
3439
3440         qlcnic_teardown_intr(adapter);
3441         err = qlcnic_setup_intr(adapter, data);
3442         if (err) {
3443                 kfree(adapter->msix_entries);
3444                 netdev_err(netdev, "failed to setup interrupt\n");
3445                 return err;
3446         }
3447
3448         if (qlcnic_83xx_check(adapter)) {
3449                 /* register for NIC IDC AEN Events */
3450                 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3451                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3452                 qlcnic_83xx_disable_mbx_poll(adapter);
3453                 if (err) {
3454                         dev_err(&adapter->pdev->dev,
3455                                 "failed to setup mbx interrupt\n");
3456                         goto done;
3457                 }
3458         }
3459
3460         if (netif_running(netdev)) {
3461                 err = qlcnic_attach(adapter);
3462                 if (err)
3463                         goto done;
3464                 err = __qlcnic_up(adapter, netdev);
3465                 if (err)
3466                         goto done;
3467                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3468         }
3469         err = len;
3470  done:
3471         netif_device_attach(netdev);
3472         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3473         return err;
3474 }
3475
3476 #ifdef CONFIG_INET
3477
3478 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
3479
3480 static void
3481 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
3482                         struct net_device *dev, unsigned long event)
3483 {
3484         struct in_device *indev;
3485
3486         indev = in_dev_get(dev);
3487         if (!indev)
3488                 return;
3489
3490         for_ifa(indev) {
3491                 switch (event) {
3492                 case NETDEV_UP:
3493                         qlcnic_config_ipaddr(adapter,
3494                                         ifa->ifa_address, QLCNIC_IP_UP);
3495                         break;
3496                 case NETDEV_DOWN:
3497                         qlcnic_config_ipaddr(adapter,
3498                                         ifa->ifa_address, QLCNIC_IP_DOWN);
3499                         break;
3500                 default:
3501                         break;
3502                 }
3503         } endfor_ifa(indev);
3504
3505         in_dev_put(indev);
3506 }
3507
3508 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
3509 {
3510         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3511         struct net_device *dev;
3512         u16 vid;
3513
3514         qlcnic_config_indev_addr(adapter, netdev, event);
3515
3516         rcu_read_lock();
3517         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
3518                 dev = __vlan_find_dev_deep(netdev, htons(ETH_P_8021Q), vid);
3519                 if (!dev)
3520                         continue;
3521                 qlcnic_config_indev_addr(adapter, dev, event);
3522         }
3523         rcu_read_unlock();
3524 }
3525
3526 static int qlcnic_netdev_event(struct notifier_block *this,
3527                                  unsigned long event, void *ptr)
3528 {
3529         struct qlcnic_adapter *adapter;
3530         struct net_device *dev = netdev_notifier_info_to_dev(ptr);
3531
3532 recheck:
3533         if (dev == NULL)
3534                 goto done;
3535
3536         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3537                 dev = vlan_dev_real_dev(dev);
3538                 goto recheck;
3539         }
3540
3541         if (!is_qlcnic_netdev(dev))
3542                 goto done;
3543
3544         adapter = netdev_priv(dev);
3545
3546         if (!adapter)
3547                 goto done;
3548
3549         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3550                 goto done;
3551
3552         qlcnic_config_indev_addr(adapter, dev, event);
3553 done:
3554         return NOTIFY_DONE;
3555 }
3556
3557 static int
3558 qlcnic_inetaddr_event(struct notifier_block *this,
3559                 unsigned long event, void *ptr)
3560 {
3561         struct qlcnic_adapter *adapter;
3562         struct net_device *dev;
3563
3564         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3565
3566         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3567
3568 recheck:
3569         if (dev == NULL)
3570                 goto done;
3571
3572         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3573                 dev = vlan_dev_real_dev(dev);
3574                 goto recheck;
3575         }
3576
3577         if (!is_qlcnic_netdev(dev))
3578                 goto done;
3579
3580         adapter = netdev_priv(dev);
3581
3582         if (!adapter)
3583                 goto done;
3584
3585         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3586                 goto done;
3587
3588         switch (event) {
3589         case NETDEV_UP:
3590                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
3591
3592                 break;
3593         case NETDEV_DOWN:
3594                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
3595
3596                 break;
3597         default:
3598                 break;
3599         }
3600
3601 done:
3602         return NOTIFY_DONE;
3603 }
3604
3605 static struct notifier_block    qlcnic_netdev_cb = {
3606         .notifier_call = qlcnic_netdev_event,
3607 };
3608
3609 static struct notifier_block qlcnic_inetaddr_cb = {
3610         .notifier_call = qlcnic_inetaddr_event,
3611 };
3612 #else
3613 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
3614 { }
3615 #endif
3616 static const struct pci_error_handlers qlcnic_err_handler = {
3617         .error_detected = qlcnic_io_error_detected,
3618         .slot_reset = qlcnic_io_slot_reset,
3619         .resume = qlcnic_io_resume,
3620 };
3621
3622 static struct pci_driver qlcnic_driver = {
3623         .name = qlcnic_driver_name,
3624         .id_table = qlcnic_pci_tbl,
3625         .probe = qlcnic_probe,
3626         .remove = qlcnic_remove,
3627 #ifdef CONFIG_PM
3628         .suspend = qlcnic_suspend,
3629         .resume = qlcnic_resume,
3630 #endif
3631         .shutdown = qlcnic_shutdown,
3632         .err_handler = &qlcnic_err_handler,
3633 #ifdef CONFIG_QLCNIC_SRIOV
3634         .sriov_configure = qlcnic_pci_sriov_configure,
3635 #endif
3636
3637 };
3638
3639 static int __init qlcnic_init_module(void)
3640 {
3641         int ret;
3642
3643         printk(KERN_INFO "%s\n", qlcnic_driver_string);
3644
3645 #ifdef CONFIG_INET
3646         register_netdevice_notifier(&qlcnic_netdev_cb);
3647         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
3648 #endif
3649
3650         ret = pci_register_driver(&qlcnic_driver);
3651         if (ret) {
3652 #ifdef CONFIG_INET
3653                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3654                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3655 #endif
3656         }
3657
3658         return ret;
3659 }
3660
3661 module_init(qlcnic_init_module);
3662
3663 static void __exit qlcnic_exit_module(void)
3664 {
3665         pci_unregister_driver(&qlcnic_driver);
3666
3667 #ifdef CONFIG_INET
3668         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3669         unregister_netdevice_notifier(&qlcnic_netdev_cb);
3670 #endif
3671 }
3672
3673 module_exit(qlcnic_exit_module);