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
 265 static const
 266 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
 267
 268 int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
 269 {
 270         int size = sizeof(struct qlcnic_host_sds_ring) * count;
 271
 272         recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
 273
 274         return recv_ctx->sds_rings == NULL;
 275 }
 276
 277 void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
 278 {
 279         if (recv_ctx->sds_rings != NULL)
 280                 kfree(recv_ctx->sds_rings);
 281
 282         recv_ctx->sds_rings = NULL;
 283 }
 284
 285 int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
 286 {
 287         struct net_device *netdev = adapter->netdev;
 288         struct pci_dev *pdev = adapter->pdev;
 289         u8 mac_addr[ETH_ALEN];
 290         int ret;
 291
 292         ret = qlcnic_get_mac_address(adapter, mac_addr,
 293                                      adapter->ahw->pci_func);
 294         if (ret)
 295                 return ret;
 296
 297         memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
 298         memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
 299
 300         /* set station address */
 301
 302         if (!is_valid_ether_addr(netdev->dev_addr))
 303                 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
 304                                         netdev->dev_addr);
 305
 306         return 0;
 307 }
 308
 309 static void qlcnic_delete_adapter_mac(struct qlcnic_adapter *adapter)
 310 {
 311         struct qlcnic_mac_list_s *cur;
 312         struct list_head *head;
 313
 314         list_for_each(head, &adapter->mac_list) {
 315                 cur = list_entry(head, struct qlcnic_mac_list_s, list);
 316                 if (!memcmp(adapter->mac_addr, cur->mac_addr, ETH_ALEN)) {
 317                         qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
 318                                                   0, QLCNIC_MAC_DEL);
 319                         list_del(&cur->list);
 320                         kfree(cur);
 321                         return;
 322                 }
 323         }
 324 }
 325
 326 static int qlcnic_set_mac(struct net_device *netdev, void *p)
 327 {
 328         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 329         struct sockaddr *addr = p;
 330
 331         if (qlcnic_sriov_vf_check(adapter))
 332                 return -EINVAL;
 333
 334         if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
 335                 return -EOPNOTSUPP;
 336
 337         if (!is_valid_ether_addr(addr->sa_data))
 338                 return -EINVAL;
 339
 340         if (!memcmp(adapter->mac_addr, addr->sa_data, ETH_ALEN))
 341                 return 0;
 342
 343         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 344                 netif_device_detach(netdev);
 345                 qlcnic_napi_disable(adapter);
 346         }
 347
 348         qlcnic_delete_adapter_mac(adapter);
 349         memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
 350         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 351         qlcnic_set_multi(adapter->netdev);
 352
 353         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 354                 netif_device_attach(netdev);
 355                 qlcnic_napi_enable(adapter);
 356         }
 357         return 0;
 358 }
 359
 360 static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
 361                         struct net_device *netdev, const unsigned char *addr)
 362 {
 363         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 364         int err = -EOPNOTSUPP;
 365
 366         if (!adapter->fdb_mac_learn)
 367                 return ndo_dflt_fdb_del(ndm, tb, netdev, addr);
 368
 369         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 370                 if (is_unicast_ether_addr(addr)) {
 371                         err = dev_uc_del(netdev, addr);
 372                         if (!err)
 373                                 err = qlcnic_nic_del_mac(adapter, addr);
 374                 } else if (is_multicast_ether_addr(addr)) {
 375                         err = dev_mc_del(netdev, addr);
 376                 } else {
 377                         err =  -EINVAL;
 378                 }
 379         }
 380         return err;
 381 }
 382
 383 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 384                         struct net_device *netdev,
 385                         const unsigned char *addr, u16 flags)
 386 {
 387         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 388         int err = 0;
 389
 390         if (!adapter->fdb_mac_learn)
 391                 return ndo_dflt_fdb_add(ndm, tb, netdev, addr, flags);
 392
 393         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 394                 pr_info("%s: FDB e-switch is not enabled\n", __func__);
 395                 return -EOPNOTSUPP;
 396         }
 397
 398         if (ether_addr_equal(addr, adapter->mac_addr))
 399                 return err;
 400
 401         if (is_unicast_ether_addr(addr)) {
 402                 if (netdev_uc_count(netdev) < adapter->ahw->max_uc_count)
 403                         err = dev_uc_add_excl(netdev, addr);
 404                 else
 405                         err = -ENOMEM;
 406         } else if (is_multicast_ether_addr(addr)) {
 407                 err = dev_mc_add_excl(netdev, addr);
 408         } else {
 409                 err = -EINVAL;
 410         }
 411
 412         return err;
 413 }
 414
 415 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
 416                         struct net_device *netdev, int idx)
 417 {
 418         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 419
 420         if (!adapter->fdb_mac_learn)
 421                 return ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
 422
 423         if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
 424                 idx = ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
 425
 426         return idx;
 427 }
 428
 429 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
 430 {
 431         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
 432                 usleep_range(10000, 11000);
 433
 434         if (!adapter->fw_work.work.func)
 435                 return;
 436
 437         cancel_delayed_work_sync(&adapter->fw_work);
 438 }
 439
 440 static int qlcnic_get_phys_port_id(struct net_device *netdev,
 441                                    struct netdev_phys_port_id *ppid)
 442 {
 443         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 444         struct qlcnic_hardware_context *ahw = adapter->ahw;
 445
 446         if (!(adapter->flags & QLCNIC_HAS_PHYS_PORT_ID))
 447                 return -EOPNOTSUPP;
 448
 449         ppid->id_len = sizeof(ahw->phys_port_id);
 450         memcpy(ppid->id, ahw->phys_port_id, ppid->id_len);
 451
 452         return 0;
 453 }
 454
 455 static const struct net_device_ops qlcnic_netdev_ops = {
 456         .ndo_open          = qlcnic_open,
 457         .ndo_stop          = qlcnic_close,
 458         .ndo_start_xmit    = qlcnic_xmit_frame,
 459         .ndo_get_stats     = qlcnic_get_stats,
 460         .ndo_validate_addr = eth_validate_addr,
 461         .ndo_set_rx_mode   = qlcnic_set_multi,
 462         .ndo_set_mac_address    = qlcnic_set_mac,
 463         .ndo_change_mtu    = qlcnic_change_mtu,
 464         .ndo_fix_features  = qlcnic_fix_features,
 465         .ndo_set_features  = qlcnic_set_features,
 466         .ndo_tx_timeout    = qlcnic_tx_timeout,
 467         .ndo_vlan_rx_add_vid    = qlcnic_vlan_rx_add,
 468         .ndo_vlan_rx_kill_vid   = qlcnic_vlan_rx_del,
 469         .ndo_fdb_add            = qlcnic_fdb_add,
 470         .ndo_fdb_del            = qlcnic_fdb_del,
 471         .ndo_fdb_dump           = qlcnic_fdb_dump,
 472         .ndo_get_phys_port_id   = qlcnic_get_phys_port_id,
 473 #ifdef CONFIG_NET_POLL_CONTROLLER
 474         .ndo_poll_controller = qlcnic_poll_controller,
 475 #endif
 476 #ifdef CONFIG_QLCNIC_SRIOV
 477         .ndo_set_vf_mac         = qlcnic_sriov_set_vf_mac,
 478         .ndo_set_vf_tx_rate     = qlcnic_sriov_set_vf_tx_rate,
 479         .ndo_get_vf_config      = qlcnic_sriov_get_vf_config,
 480         .ndo_set_vf_vlan        = qlcnic_sriov_set_vf_vlan,
 481         .ndo_set_vf_spoofchk    = qlcnic_sriov_set_vf_spoofchk,
 482 #endif
 483 };
 484
 485 static const struct net_device_ops qlcnic_netdev_failed_ops = {
 486         .ndo_open          = qlcnic_open,
 487 };
 488
 489 static struct qlcnic_nic_template qlcnic_ops = {
 490         .config_bridged_mode    = qlcnic_config_bridged_mode,
 491         .config_led             = qlcnic_82xx_config_led,
 492         .start_firmware         = qlcnic_82xx_start_firmware,
 493         .request_reset          = qlcnic_82xx_dev_request_reset,
 494         .cancel_idc_work        = qlcnic_82xx_cancel_idc_work,
 495         .napi_add               = qlcnic_82xx_napi_add,
 496         .napi_del               = qlcnic_82xx_napi_del,
 497         .config_ipaddr          = qlcnic_82xx_config_ipaddr,
 498         .shutdown               = qlcnic_82xx_shutdown,
 499         .resume                 = qlcnic_82xx_resume,
 500         .clear_legacy_intr      = qlcnic_82xx_clear_legacy_intr,
 501 };
 502
 503 struct qlcnic_nic_template qlcnic_vf_ops = {
 504         .config_bridged_mode    = qlcnicvf_config_bridged_mode,
 505         .config_led             = qlcnicvf_config_led,
 506         .start_firmware         = qlcnicvf_start_firmware
 507 };
 508
 509 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
 510         .read_crb                       = qlcnic_82xx_read_crb,
 511         .write_crb                      = qlcnic_82xx_write_crb,
 512         .read_reg                       = qlcnic_82xx_hw_read_wx_2M,
 513         .write_reg                      = qlcnic_82xx_hw_write_wx_2M,
 514         .get_mac_address                = qlcnic_82xx_get_mac_address,
 515         .setup_intr                     = qlcnic_82xx_setup_intr,
 516         .alloc_mbx_args                 = qlcnic_82xx_alloc_mbx_args,
 517         .mbx_cmd                        = qlcnic_82xx_issue_cmd,
 518         .get_func_no                    = qlcnic_82xx_get_func_no,
 519         .api_lock                       = qlcnic_82xx_api_lock,
 520         .api_unlock                     = qlcnic_82xx_api_unlock,
 521         .add_sysfs                      = qlcnic_82xx_add_sysfs,
 522         .remove_sysfs                   = qlcnic_82xx_remove_sysfs,
 523         .process_lb_rcv_ring_diag       = qlcnic_82xx_process_rcv_ring_diag,
 524         .create_rx_ctx                  = qlcnic_82xx_fw_cmd_create_rx_ctx,
 525         .create_tx_ctx                  = qlcnic_82xx_fw_cmd_create_tx_ctx,
 526         .del_rx_ctx                     = qlcnic_82xx_fw_cmd_del_rx_ctx,
 527         .del_tx_ctx                     = qlcnic_82xx_fw_cmd_del_tx_ctx,
 528         .setup_link_event               = qlcnic_82xx_linkevent_request,
 529         .get_nic_info                   = qlcnic_82xx_get_nic_info,
 530         .get_pci_info                   = qlcnic_82xx_get_pci_info,
 531         .set_nic_info                   = qlcnic_82xx_set_nic_info,
 532         .change_macvlan                 = qlcnic_82xx_sre_macaddr_change,
 533         .napi_enable                    = qlcnic_82xx_napi_enable,
 534         .napi_disable                   = qlcnic_82xx_napi_disable,
 535         .config_intr_coal               = qlcnic_82xx_config_intr_coalesce,
 536         .config_rss                     = qlcnic_82xx_config_rss,
 537         .config_hw_lro                  = qlcnic_82xx_config_hw_lro,
 538         .config_loopback                = qlcnic_82xx_set_lb_mode,
 539         .clear_loopback                 = qlcnic_82xx_clear_lb_mode,
 540         .config_promisc_mode            = qlcnic_82xx_nic_set_promisc,
 541         .change_l2_filter               = qlcnic_82xx_change_filter,
 542         .get_board_info                 = qlcnic_82xx_get_board_info,
 543         .set_mac_filter_count           = qlcnic_82xx_set_mac_filter_count,
 544         .free_mac_list                  = qlcnic_82xx_free_mac_list,
 545         .read_phys_port_id              = qlcnic_82xx_read_phys_port_id,
 546         .io_error_detected              = qlcnic_82xx_io_error_detected,
 547         .io_slot_reset                  = qlcnic_82xx_io_slot_reset,
 548         .io_resume                      = qlcnic_82xx_io_resume,
 549 };
 550
 551 static int qlcnic_check_multi_tx_capability(struct qlcnic_adapter *adapter)
 552 {
 553         struct qlcnic_hardware_context *ahw = adapter->ahw;
 554
 555         if (qlcnic_82xx_check(adapter) &&
 556             (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_MULTI_TX)) {
 557                 test_and_set_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
 558                 return 0;
 559         } else {
 560                 return 1;
 561         }
 562 }
 563
 564 static int qlcnic_max_rings(struct qlcnic_adapter *adapter, u8 ring_cnt,
 565                             int queue_type)
 566 {
 567         int num_rings, max_rings = QLCNIC_MAX_SDS_RINGS;
 568
 569         if (queue_type == QLCNIC_RX_QUEUE)
 570                 max_rings = adapter->max_sds_rings;
 571         else if (queue_type == QLCNIC_TX_QUEUE)
 572                 max_rings = adapter->max_tx_rings;
 573
 574         num_rings = rounddown_pow_of_two(min_t(int, num_online_cpus(),
 575                                               max_rings));
 576
 577         if (ring_cnt > num_rings)
 578                 return num_rings;
 579         else
 580                 return ring_cnt;
 581 }
 582
 583 void qlcnic_set_tx_ring_count(struct qlcnic_adapter *adapter, u8 tx_cnt)
 584 {
 585         /* 83xx adapter does not have max_tx_rings intialized in probe */
 586         if (adapter->max_tx_rings)
 587                 adapter->drv_tx_rings = qlcnic_max_rings(adapter, tx_cnt,
 588                                                          QLCNIC_TX_QUEUE);
 589         else
 590                 adapter->drv_tx_rings = tx_cnt;
 591
 592         dev_info(&adapter->pdev->dev, "Set %d Tx rings\n",
 593                  adapter->drv_tx_rings);
 594 }
 595
 596 void qlcnic_set_sds_ring_count(struct qlcnic_adapter *adapter, u8 rx_cnt)
 597 {
 598         /* 83xx adapter does not have max_sds_rings intialized in probe */
 599         if (adapter->max_sds_rings)
 600                 adapter->drv_sds_rings = qlcnic_max_rings(adapter, rx_cnt,
 601                                                           QLCNIC_RX_QUEUE);
 602         else
 603                 adapter->drv_sds_rings = rx_cnt;
 604
 605         dev_info(&adapter->pdev->dev, "Set %d SDS rings\n",
 606                  adapter->drv_sds_rings);
 607 }
 608
 609 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 610 {
 611         struct pci_dev *pdev = adapter->pdev;
 612         int drv_tx_rings, drv_sds_rings, tx_vector;
 613         int err = -1, i;
 614
 615         if (adapter->flags & QLCNIC_TX_INTR_SHARED) {
 616                 drv_tx_rings = 0;
 617                 tx_vector = 0;
 618         } else {
 619                 drv_tx_rings = adapter->drv_tx_rings;
 620                 tx_vector = 1;
 621         }
 622
 623         if (!adapter->msix_entries) {
 624                 adapter->msix_entries = kcalloc(num_msix,
 625                                                 sizeof(struct msix_entry),
 626                                                 GFP_KERNEL);
 627                 if (!adapter->msix_entries)
 628                         return -ENOMEM;
 629         }
 630
 631         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
 632         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 633
 634         if (adapter->ahw->msix_supported) {
 635  enable_msix:
 636                 for (i = 0; i < num_msix; i++)
 637                         adapter->msix_entries[i].entry = i;
 638                 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
 639                 if (err == 0) {
 640                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 641                         if (qlcnic_83xx_check(adapter)) {
 642                                 adapter->ahw->num_msix = num_msix;
 643                                 /* subtract mail box and tx ring vectors */
 644                                 adapter->drv_sds_rings = num_msix -
 645                                                          drv_tx_rings - 1;
 646                         } else {
 647                                 adapter->ahw->num_msix = num_msix;
 648                                 if (qlcnic_check_multi_tx(adapter) &&
 649                                     !adapter->ahw->diag_test &&
 650                                     (adapter->drv_tx_rings > 1))
 651                                         drv_sds_rings = num_msix - drv_tx_rings;
 652                                 else
 653                                         drv_sds_rings = num_msix;
 654
 655                                 adapter->drv_sds_rings = drv_sds_rings;
 656                         }
 657                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 658                         return err;
 659                 } else if (err > 0) {
 660                         dev_info(&pdev->dev,
 661                                  "Unable to allocate %d MSI-X interrupt vectors\n",
 662                                  num_msix);
 663                         if (qlcnic_83xx_check(adapter)) {
 664                                 if (err < (QLC_83XX_MINIMUM_VECTOR - tx_vector))
 665                                         return err;
 666                                 err -= drv_tx_rings + 1;
 667                                 num_msix = rounddown_pow_of_two(err);
 668                                 num_msix += drv_tx_rings + 1;
 669                         } else {
 670                                 num_msix = rounddown_pow_of_two(err);
 671                                 if (qlcnic_check_multi_tx(adapter))
 672                                         num_msix += drv_tx_rings;
 673                         }
 674
 675                         if (num_msix) {
 676                                 dev_info(&pdev->dev,
 677                                          "Trying to allocate %d MSI-X interrupt vectors\n",
 678                                          num_msix);
 679                                 goto enable_msix;
 680                         }
 681                 } else {
 682                         dev_info(&pdev->dev,
 683                                  "Unable to allocate %d MSI-X interrupt vectors\n",
 684                                  num_msix);
 685                 }
 686         }
 687
 688         return err;
 689 }
 690
 691 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
 692 {
 693         int err = 0;
 694         u32 offset, mask_reg;
 695         const struct qlcnic_legacy_intr_set *legacy_intrp;
 696         struct qlcnic_hardware_context *ahw = adapter->ahw;
 697         struct pci_dev *pdev = adapter->pdev;
 698
 699         if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
 700                 adapter->flags |= QLCNIC_MSI_ENABLED;
 701                 offset = msi_tgt_status[adapter->ahw->pci_func];
 702                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
 703                                                             offset);
 704                 dev_info(&pdev->dev, "using msi interrupts\n");
 705                 adapter->msix_entries[0].vector = pdev->irq;
 706                 return err;
 707         }
 708
 709         if (qlcnic_use_msi || qlcnic_use_msi_x)
 710                 return -EOPNOTSUPP;
 711
 712         legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
 713         adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
 714         offset = legacy_intrp->tgt_status_reg;
 715         adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
 716         mask_reg = legacy_intrp->tgt_mask_reg;
 717         adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
 718         adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
 719         adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
 720         dev_info(&pdev->dev, "using legacy interrupts\n");
 721         adapter->msix_entries[0].vector = pdev->irq;
 722         return err;
 723 }
 724
 725 int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter)
 726 {
 727         int num_msix, err = 0;
 728
 729         num_msix = adapter->drv_sds_rings;
 730
 731         if (qlcnic_check_multi_tx(adapter))
 732                 num_msix += adapter->drv_tx_rings;
 733
 734         err = qlcnic_enable_msix(adapter, num_msix);
 735         if (err == -ENOMEM)
 736                 return err;
 737
 738         if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
 739                 qlcnic_disable_multi_tx(adapter);
 740
 741                 err = qlcnic_enable_msi_legacy(adapter);
 742                 if (!err)
 743                         return err;
 744         }
 745
 746         return 0;
 747 }
 748
 749 int qlcnic_82xx_mq_intrpt(struct qlcnic_adapter *adapter, int op_type)
 750 {
 751         struct qlcnic_hardware_context *ahw = adapter->ahw;
 752         int err, i;
 753
 754         if (qlcnic_check_multi_tx(adapter) &&
 755             !ahw->diag_test &&
 756             (adapter->flags & QLCNIC_MSIX_ENABLED)) {
 757                 ahw->intr_tbl = vzalloc(ahw->num_msix *
 758                                         sizeof(struct qlcnic_intrpt_config));
 759                 if (!ahw->intr_tbl)
 760                         return -ENOMEM;
 761
 762                 for (i = 0; i < ahw->num_msix; i++) {
 763                         ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
 764                         ahw->intr_tbl[i].id = i;
 765                         ahw->intr_tbl[i].src = 0;
 766                 }
 767
 768                 err = qlcnic_82xx_config_intrpt(adapter, 1);
 769                 if (err)
 770                         dev_err(&adapter->pdev->dev,
 771                                 "Failed to configure Interrupt for %d vector\n",
 772                                 ahw->num_msix);
 773                 return err;
 774         }
 775
 776         return 0;
 777 }
 778
 779 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 780 {
 781         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 782                 pci_disable_msix(adapter->pdev);
 783         if (adapter->flags & QLCNIC_MSI_ENABLED)
 784                 pci_disable_msi(adapter->pdev);
 785
 786         kfree(adapter->msix_entries);
 787         adapter->msix_entries = NULL;
 788
 789         if (adapter->ahw->intr_tbl) {
 790                 vfree(adapter->ahw->intr_tbl);
 791                 adapter->ahw->intr_tbl = NULL;
 792         }
 793 }
 794
 795 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
 796 {
 797         if (ahw->pci_base0 != NULL)
 798                 iounmap(ahw->pci_base0);
 799 }
 800
 801 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
 802 {
 803         struct qlcnic_pci_info *pci_info;
 804         int ret;
 805
 806         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 807                 switch (adapter->ahw->port_type) {
 808                 case QLCNIC_GBE:
 809                         adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_GBE_PORTS;
 810                         break;
 811                 case QLCNIC_XGBE:
 812                         adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_XG_PORTS;
 813                         break;
 814                 }
 815                 return 0;
 816         }
 817
 818         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
 819                 return 0;
 820
 821         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 822         if (!pci_info)
 823                 return -ENOMEM;
 824
 825         ret = qlcnic_get_pci_info(adapter, pci_info);
 826         kfree(pci_info);
 827         return ret;
 828 }
 829
 830 static bool qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter *adapter)
 831 {
 832         bool ret = false;
 833
 834         if (qlcnic_84xx_check(adapter)) {
 835                 ret = true;
 836         } else if (qlcnic_83xx_check(adapter)) {
 837                 if (adapter->ahw->extra_capability[0] &
 838                     QLCNIC_FW_CAPABILITY_2_PER_PORT_ESWITCH_CFG)
 839                         ret = true;
 840                 else
 841                         ret = false;
 842         }
 843
 844         return ret;
 845 }
 846
 847 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 848 {
 849         struct qlcnic_pci_info *pci_info;
 850         int i, id = 0, ret = 0, j = 0;
 851         u16 act_pci_func;
 852         u8 pfn;
 853
 854         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 855         if (!pci_info)
 856                 return -ENOMEM;
 857
 858         ret = qlcnic_get_pci_info(adapter, pci_info);
 859         if (ret)
 860                 goto err_pci_info;
 861
 862         act_pci_func = adapter->ahw->act_pci_func;
 863
 864         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
 865                                  act_pci_func, GFP_KERNEL);
 866         if (!adapter->npars) {
 867                 ret = -ENOMEM;
 868                 goto err_pci_info;
 869         }
 870
 871         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
 872                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
 873         if (!adapter->eswitch) {
 874                 ret = -ENOMEM;
 875                 goto err_npars;
 876         }
 877
 878         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 879                 pfn = pci_info[i].id;
 880
 881                 if (pfn >= QLCNIC_MAX_PCI_FUNC) {
 882                         ret = QL_STATUS_INVALID_PARAM;
 883                         goto err_eswitch;
 884                 }
 885
 886                 if (!pci_info[i].active ||
 887                     (pci_info[i].type != QLCNIC_TYPE_NIC))
 888                         continue;
 889
 890                 if (qlcnic_port_eswitch_cfg_capability(adapter)) {
 891                         if (!qlcnic_83xx_set_port_eswitch_status(adapter, pfn,
 892                                                                  &id))
 893                                 adapter->npars[j].eswitch_status = true;
 894                         else
 895                                 continue;
 896                 } else {
 897                         adapter->npars[j].eswitch_status = true;
 898                 }
 899
 900                 adapter->npars[j].pci_func = pfn;
 901                 adapter->npars[j].active = (u8)pci_info[i].active;
 902                 adapter->npars[j].type = (u8)pci_info[i].type;
 903                 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
 904                 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
 905                 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
 906
 907                 memcpy(&adapter->npars[j].mac, &pci_info[i].mac, ETH_ALEN);
 908                 j++;
 909         }
 910
 911         /* Update eSwitch status for adapters without per port eSwitch
 912          * configuration capability
 913          */
 914         if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
 915                 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
 916                         adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
 917         }
 918
 919         kfree(pci_info);
 920         return 0;
 921
 922 err_eswitch:
 923         kfree(adapter->eswitch);
 924         adapter->eswitch = NULL;
 925 err_npars:
 926         kfree(adapter->npars);
 927         adapter->npars = NULL;
 928 err_pci_info:
 929         kfree(pci_info);
 930
 931         return ret;
 932 }
 933
 934 static int
 935 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
 936 {
 937         u8 id;
 938         int ret;
 939         u32 data = QLCNIC_MGMT_FUNC;
 940         struct qlcnic_hardware_context *ahw = adapter->ahw;
 941
 942         ret = qlcnic_api_lock(adapter);
 943         if (ret)
 944                 goto err_lock;
 945
 946         id = ahw->pci_func;
 947         data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 948         data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
 949                QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
 950         QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
 951         qlcnic_api_unlock(adapter);
 952 err_lock:
 953         return ret;
 954 }
 955
 956 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
 957                             const struct pci_device_id *ent)
 958 {
 959         u32 op_mode, priv_level;
 960
 961         /* Determine FW API version */
 962         adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
 963                                                            QLCNIC_FW_API);
 964
 965         /* Find PCI function number */
 966         qlcnic_get_func_no(adapter);
 967
 968         /* Determine function privilege level */
 969         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 970         if (op_mode == QLC_DEV_DRV_DEFAULT)
 971                 priv_level = QLCNIC_MGMT_FUNC;
 972         else
 973                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
 974
 975         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
 976                 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
 977                 dev_info(&adapter->pdev->dev,
 978                         "HAL Version: %d Non Privileged function\n",
 979                          adapter->ahw->fw_hal_version);
 980                 adapter->nic_ops = &qlcnic_vf_ops;
 981         } else
 982                 adapter->nic_ops = &qlcnic_ops;
 983 }
 984
 985 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
 986 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
 987 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
 988 {
 989         switch (dev_id) {
 990         case PCI_DEVICE_ID_QLOGIC_QLE824X:
 991                 *bar = QLCNIC_82XX_BAR0_LENGTH;
 992                 break;
 993         case PCI_DEVICE_ID_QLOGIC_QLE834X:
 994         case PCI_DEVICE_ID_QLOGIC_QLE844X:
 995         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
 996         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
 997                 *bar = QLCNIC_83XX_BAR0_LENGTH;
 998                 break;
 999         default:
1000                 *bar = 0;
1001         }
1002 }
1003
1004 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
1005                                 struct qlcnic_hardware_context *ahw)
1006 {
1007         u32 offset;
1008         void __iomem *mem_ptr0 = NULL;
1009         unsigned long mem_len, pci_len0 = 0, bar0_len;
1010
1011         /* remap phys address */
1012         mem_len = pci_resource_len(pdev, 0);
1013
1014         qlcnic_get_bar_length(pdev->device, &bar0_len);
1015         if (mem_len >= bar0_len) {
1016
1017                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
1018                 if (mem_ptr0 == NULL) {
1019                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
1020                         return -EIO;
1021                 }
1022                 pci_len0 = mem_len;
1023         } else {
1024                 return -EIO;
1025         }
1026
1027         dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
1028
1029         ahw->pci_base0 = mem_ptr0;
1030         ahw->pci_len0 = pci_len0;
1031         offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
1032         qlcnic_get_ioaddr(ahw, offset);
1033
1034         return 0;
1035 }
1036
1037 static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
1038                                          int index)
1039 {
1040         struct pci_dev *pdev = adapter->pdev;
1041         unsigned short subsystem_vendor;
1042         bool ret = true;
1043
1044         subsystem_vendor = pdev->subsystem_vendor;
1045
1046         if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
1047             pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1048                 if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
1049                     qlcnic_boards[index].sub_device == pdev->subsystem_device)
1050                         ret = true;
1051                 else
1052                         ret = false;
1053         }
1054
1055         return ret;
1056 }
1057
1058 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
1059 {
1060         struct pci_dev *pdev = adapter->pdev;
1061         int i, found = 0;
1062
1063         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1064                 if (qlcnic_boards[i].vendor == pdev->vendor &&
1065                     qlcnic_boards[i].device == pdev->device &&
1066                     qlcnic_validate_subsystem_id(adapter, i)) {
1067                         found = 1;
1068                         break;
1069                 }
1070         }
1071
1072         if (!found)
1073                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
1074         else
1075                 sprintf(name, "%pM: %s" , adapter->mac_addr,
1076                         qlcnic_boards[i].short_name);
1077 }
1078
1079 static void
1080 qlcnic_check_options(struct qlcnic_adapter *adapter)
1081 {
1082         int err;
1083         u32 fw_major, fw_minor, fw_build, prev_fw_version;
1084         struct pci_dev *pdev = adapter->pdev;
1085         struct qlcnic_hardware_context *ahw = adapter->ahw;
1086         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
1087
1088         prev_fw_version = adapter->fw_version;
1089
1090         fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
1091         fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
1092         fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
1093
1094         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
1095
1096         err = qlcnic_get_board_info(adapter);
1097         if (err) {
1098                 dev_err(&pdev->dev, "Error getting board config info.\n");
1099                 return;
1100         }
1101         if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
1102                 if (fw_dump->tmpl_hdr == NULL ||
1103                                 adapter->fw_version > prev_fw_version) {
1104                         if (fw_dump->tmpl_hdr)
1105                                 vfree(fw_dump->tmpl_hdr);
1106                         if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1107                                 dev_info(&pdev->dev,
1108                                         "Supports FW dump capability\n");
1109                 }
1110         }
1111
1112         dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
1113                  QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
1114
1115         if (adapter->ahw->port_type == QLCNIC_XGBE) {
1116                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1117                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
1118                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
1119                 } else {
1120                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
1121                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
1122                 }
1123
1124                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1125                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1126
1127         } else if (adapter->ahw->port_type == QLCNIC_GBE) {
1128                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
1129                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1130                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1131                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
1132         }
1133
1134         adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
1135
1136         adapter->num_txd = MAX_CMD_DESCRIPTORS;
1137
1138         adapter->max_rds_rings = MAX_RDS_RINGS;
1139 }
1140
1141 static int
1142 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
1143 {
1144         struct qlcnic_info nic_info;
1145         int err = 0;
1146
1147         memset(&nic_info, 0, sizeof(struct qlcnic_info));
1148         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
1149         if (err)
1150                 return err;
1151
1152         adapter->ahw->physical_port = (u8)nic_info.phys_port;
1153         adapter->ahw->switch_mode = nic_info.switch_mode;
1154         adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
1155         adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
1156         adapter->ahw->capabilities = nic_info.capabilities;
1157
1158         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1159                 u32 temp;
1160                 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
1161                 if (err == -EIO)
1162                         return err;
1163                 adapter->ahw->extra_capability[0] = temp;
1164         } else {
1165                 adapter->ahw->extra_capability[0] = 0;
1166         }
1167
1168         adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1169         adapter->ahw->max_mtu = nic_info.max_mtu;
1170
1171         if (adapter->ahw->capabilities & BIT_6) {
1172                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1173                 adapter->ahw->nic_mode = QLCNIC_VNIC_MODE;
1174                 adapter->max_tx_rings = QLCNIC_MAX_HW_VNIC_TX_RINGS;
1175                 adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
1176
1177                 dev_info(&adapter->pdev->dev, "vNIC mode enabled.\n");
1178         } else {
1179                 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1180                 adapter->max_tx_rings = QLCNIC_MAX_HW_TX_RINGS;
1181                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1182         }
1183
1184         return err;
1185 }
1186
1187 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1188                             struct qlcnic_esw_func_cfg *esw_cfg)
1189 {
1190         if (esw_cfg->discard_tagged)
1191                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1192         else
1193                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1194
1195         if (esw_cfg->vlan_id) {
1196                 adapter->rx_pvid = esw_cfg->vlan_id;
1197                 adapter->tx_pvid = esw_cfg->vlan_id;
1198         } else {
1199                 adapter->rx_pvid = 0;
1200                 adapter->tx_pvid = 0;
1201         }
1202 }
1203
1204 static int
1205 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1206 {
1207         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1208         int err;
1209
1210         if (qlcnic_sriov_vf_check(adapter)) {
1211                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1212                 if (err) {
1213                         netdev_err(netdev,
1214                                    "Cannot add VLAN filter for VLAN id %d, err=%d",
1215                                    vid, err);
1216                         return err;
1217                 }
1218         }
1219
1220         set_bit(vid, adapter->vlans);
1221         return 0;
1222 }
1223
1224 static int
1225 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1226 {
1227         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1228         int err;
1229
1230         if (qlcnic_sriov_vf_check(adapter)) {
1231                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1232                 if (err) {
1233                         netdev_err(netdev,
1234                                    "Cannot delete VLAN filter for VLAN id %d, err=%d",
1235                                    vid, err);
1236                         return err;
1237                 }
1238         }
1239
1240         qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1241         clear_bit(vid, adapter->vlans);
1242         return 0;
1243 }
1244
1245 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1246                                       struct qlcnic_esw_func_cfg *esw_cfg)
1247 {
1248         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1249                                 QLCNIC_PROMISC_DISABLED);
1250
1251         if (esw_cfg->mac_anti_spoof)
1252                 adapter->flags |= QLCNIC_MACSPOOF;
1253
1254         if (!esw_cfg->mac_override)
1255                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1256
1257         if (!esw_cfg->promisc_mode)
1258                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1259 }
1260
1261 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1262 {
1263         struct qlcnic_esw_func_cfg esw_cfg;
1264
1265         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1266                 return 0;
1267
1268         esw_cfg.pci_func = adapter->ahw->pci_func;
1269         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1270                         return -EIO;
1271         qlcnic_set_vlan_config(adapter, &esw_cfg);
1272         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1273         qlcnic_set_netdev_features(adapter, &esw_cfg);
1274
1275         return 0;
1276 }
1277
1278 void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1279                                 struct qlcnic_esw_func_cfg *esw_cfg)
1280 {
1281         struct net_device *netdev = adapter->netdev;
1282
1283         if (qlcnic_83xx_check(adapter))
1284                 return;
1285
1286         adapter->offload_flags = esw_cfg->offload_flags;
1287         adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1288         netdev_update_features(netdev);
1289         adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1290 }
1291
1292 static int
1293 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1294 {
1295         u32 op_mode, priv_level;
1296         int err = 0;
1297
1298         err = qlcnic_initialize_nic(adapter);
1299         if (err)
1300                 return err;
1301
1302         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1303                 return 0;
1304
1305         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1306         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1307
1308         if (op_mode == QLC_DEV_DRV_DEFAULT)
1309                 priv_level = QLCNIC_MGMT_FUNC;
1310         else
1311                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1312
1313         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1314                 if (priv_level == QLCNIC_MGMT_FUNC) {
1315                         adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1316                         err = qlcnic_init_pci_info(adapter);
1317                         if (err)
1318                                 return err;
1319                         /* Set privilege level for other functions */
1320                         qlcnic_set_function_modes(adapter);
1321                         dev_info(&adapter->pdev->dev,
1322                                 "HAL Version: %d, Management function\n",
1323                                  adapter->ahw->fw_hal_version);
1324                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1325                         adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1326                         dev_info(&adapter->pdev->dev,
1327                                 "HAL Version: %d, Privileged function\n",
1328                                  adapter->ahw->fw_hal_version);
1329                 }
1330         } else {
1331                 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1332         }
1333
1334         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1335
1336         return err;
1337 }
1338
1339 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1340 {
1341         struct qlcnic_esw_func_cfg esw_cfg;
1342         struct qlcnic_npar_info *npar;
1343         u8 i;
1344
1345         if (adapter->need_fw_reset)
1346                 return 0;
1347
1348         for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1349                 if (!adapter->npars[i].eswitch_status)
1350                         continue;
1351
1352                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1353                 esw_cfg.pci_func = adapter->npars[i].pci_func;
1354                 esw_cfg.mac_override = BIT_0;
1355                 esw_cfg.promisc_mode = BIT_0;
1356                 if (qlcnic_82xx_check(adapter)) {
1357                         esw_cfg.offload_flags = BIT_0;
1358                         if (QLCNIC_IS_TSO_CAPABLE(adapter))
1359                                 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1360                 }
1361                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1362                         return -EIO;
1363                 npar = &adapter->npars[i];
1364                 npar->pvid = esw_cfg.vlan_id;
1365                 npar->mac_override = esw_cfg.mac_override;
1366                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1367                 npar->discard_tagged = esw_cfg.discard_tagged;
1368                 npar->promisc_mode = esw_cfg.promisc_mode;
1369                 npar->offload_flags = esw_cfg.offload_flags;
1370         }
1371
1372         return 0;
1373 }
1374
1375
1376 static int
1377 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1378                         struct qlcnic_npar_info *npar, int pci_func)
1379 {
1380         struct qlcnic_esw_func_cfg esw_cfg;
1381         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1382         esw_cfg.pci_func = pci_func;
1383         esw_cfg.vlan_id = npar->pvid;
1384         esw_cfg.mac_override = npar->mac_override;
1385         esw_cfg.discard_tagged = npar->discard_tagged;
1386         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1387         esw_cfg.offload_flags = npar->offload_flags;
1388         esw_cfg.promisc_mode = npar->promisc_mode;
1389         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1390                 return -EIO;
1391
1392         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1393         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1394                 return -EIO;
1395
1396         return 0;
1397 }
1398
1399 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1400 {
1401         int i, err;
1402         struct qlcnic_npar_info *npar;
1403         struct qlcnic_info nic_info;
1404         u8 pci_func;
1405
1406         if (qlcnic_82xx_check(adapter))
1407                 if (!adapter->need_fw_reset)
1408                         return 0;
1409
1410         /* Set the NPAR config data after FW reset */
1411         for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1412                 npar = &adapter->npars[i];
1413                 pci_func = npar->pci_func;
1414                 if (!adapter->npars[i].eswitch_status)
1415                         continue;
1416
1417                 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1418                 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1419                 if (err)
1420                         return err;
1421                 nic_info.min_tx_bw = npar->min_bw;
1422                 nic_info.max_tx_bw = npar->max_bw;
1423                 err = qlcnic_set_nic_info(adapter, &nic_info);
1424                 if (err)
1425                         return err;
1426
1427                 if (npar->enable_pm) {
1428                         err = qlcnic_config_port_mirroring(adapter,
1429                                                            npar->dest_npar, 1,
1430                                                            pci_func);
1431                         if (err)
1432                                 return err;
1433                 }
1434                 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1435                 if (err)
1436                         return err;
1437         }
1438         return 0;
1439 }
1440
1441 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1442 {
1443         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1444         u32 npar_state;
1445
1446         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1447                 return 0;
1448
1449         npar_state = QLC_SHARED_REG_RD32(adapter,
1450                                          QLCNIC_CRB_DEV_NPAR_STATE);
1451         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1452                 msleep(1000);
1453                 npar_state = QLC_SHARED_REG_RD32(adapter,
1454                                                  QLCNIC_CRB_DEV_NPAR_STATE);
1455         }
1456         if (!npar_opt_timeo) {
1457                 dev_err(&adapter->pdev->dev,
1458                         "Waiting for NPAR state to operational timeout\n");
1459                 return -EIO;
1460         }
1461         return 0;
1462 }
1463
1464 static int
1465 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1466 {
1467         int err;
1468
1469         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1470             adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1471                 return 0;
1472
1473         err = qlcnic_set_default_offload_settings(adapter);
1474         if (err)
1475                 return err;
1476
1477         err = qlcnic_reset_npar_config(adapter);
1478         if (err)
1479                 return err;
1480
1481         qlcnic_dev_set_npar_ready(adapter);
1482
1483         return err;
1484 }
1485
1486 int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1487 {
1488         int err;
1489
1490         err = qlcnic_can_start_firmware(adapter);
1491         if (err < 0)
1492                 return err;
1493         else if (!err)
1494                 goto check_fw_status;
1495
1496         if (qlcnic_load_fw_file)
1497                 qlcnic_request_firmware(adapter);
1498         else {
1499                 err = qlcnic_check_flash_fw_ver(adapter);
1500                 if (err)
1501                         goto err_out;
1502
1503                 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1504         }
1505
1506         err = qlcnic_need_fw_reset(adapter);
1507         if (err == 0)
1508                 goto check_fw_status;
1509
1510         err = qlcnic_pinit_from_rom(adapter);
1511         if (err)
1512                 goto err_out;
1513
1514         err = qlcnic_load_firmware(adapter);
1515         if (err)
1516                 goto err_out;
1517
1518         qlcnic_release_firmware(adapter);
1519         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1520
1521 check_fw_status:
1522         err = qlcnic_check_fw_status(adapter);
1523         if (err)
1524                 goto err_out;
1525
1526         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1527         qlcnic_idc_debug_info(adapter, 1);
1528         err = qlcnic_check_eswitch_mode(adapter);
1529         if (err) {
1530                 dev_err(&adapter->pdev->dev,
1531                         "Memory allocation failed for eswitch\n");
1532                 goto err_out;
1533         }
1534         err = qlcnic_set_mgmt_operations(adapter);
1535         if (err)
1536                 goto err_out;
1537
1538         qlcnic_check_options(adapter);
1539         adapter->need_fw_reset = 0;
1540
1541         qlcnic_release_firmware(adapter);
1542         return 0;
1543
1544 err_out:
1545         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1546         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1547
1548         qlcnic_release_firmware(adapter);
1549         return err;
1550 }
1551
1552 static int
1553 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1554 {
1555         irq_handler_t handler;
1556         struct qlcnic_host_sds_ring *sds_ring;
1557         struct qlcnic_host_tx_ring *tx_ring;
1558         int err, ring, num_sds_rings;
1559
1560         unsigned long flags = 0;
1561         struct net_device *netdev = adapter->netdev;
1562         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1563
1564         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1565                 if (qlcnic_82xx_check(adapter))
1566                         handler = qlcnic_tmp_intr;
1567                 else
1568                         handler = qlcnic_83xx_tmp_intr;
1569                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1570                         flags |= IRQF_SHARED;
1571
1572         } else {
1573                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1574                         handler = qlcnic_msix_intr;
1575                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1576                         handler = qlcnic_msi_intr;
1577                 else {
1578                         flags |= IRQF_SHARED;
1579                         if (qlcnic_82xx_check(adapter))
1580                                 handler = qlcnic_intr;
1581                         else
1582                                 handler = qlcnic_83xx_intr;
1583                 }
1584         }
1585         adapter->irq = netdev->irq;
1586
1587         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1588                 if (qlcnic_82xx_check(adapter) ||
1589                     (qlcnic_83xx_check(adapter) &&
1590                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1591                         num_sds_rings = adapter->drv_sds_rings;
1592                         for (ring = 0; ring < num_sds_rings; ring++) {
1593                                 sds_ring = &recv_ctx->sds_rings[ring];
1594                                 if (qlcnic_82xx_check(adapter) &&
1595                                     !qlcnic_check_multi_tx(adapter) &&
1596                                     (ring == (num_sds_rings - 1))) {
1597                                         if (!(adapter->flags &
1598                                               QLCNIC_MSIX_ENABLED))
1599                                                 snprintf(sds_ring->name,
1600                                                          sizeof(sds_ring->name),
1601                                                          "qlcnic");
1602                                         else
1603                                                 snprintf(sds_ring->name,
1604                                                          sizeof(sds_ring->name),
1605                                                          "%s-tx-0-rx-%d",
1606                                                          netdev->name, ring);
1607                                 } else {
1608                                         snprintf(sds_ring->name,
1609                                                  sizeof(sds_ring->name),
1610                                                  "%s-rx-%d",
1611                                                  netdev->name, ring);
1612                                 }
1613                                 err = request_irq(sds_ring->irq, handler, flags,
1614                                                   sds_ring->name, sds_ring);
1615                                 if (err)
1616                                         return err;
1617                         }
1618                 }
1619                 if ((qlcnic_82xx_check(adapter) &&
1620                      qlcnic_check_multi_tx(adapter)) ||
1621                     (qlcnic_83xx_check(adapter) &&
1622                      (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1623                      !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
1624                         handler = qlcnic_msix_tx_intr;
1625                         for (ring = 0; ring < adapter->drv_tx_rings;
1626                              ring++) {
1627                                 tx_ring = &adapter->tx_ring[ring];
1628                                 snprintf(tx_ring->name, sizeof(tx_ring->name),
1629                                          "%s-tx-%d", netdev->name, ring);
1630                                 err = request_irq(tx_ring->irq, handler, flags,
1631                                                   tx_ring->name, tx_ring);
1632                                 if (err)
1633                                         return err;
1634                         }
1635                 }
1636         }
1637         return 0;
1638 }
1639
1640 static void
1641 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1642 {
1643         int ring;
1644         struct qlcnic_host_sds_ring *sds_ring;
1645         struct qlcnic_host_tx_ring *tx_ring;
1646
1647         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1648
1649         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1650                 if (qlcnic_82xx_check(adapter) ||
1651                     (qlcnic_83xx_check(adapter) &&
1652                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1653                         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1654                                 sds_ring = &recv_ctx->sds_rings[ring];
1655                                 free_irq(sds_ring->irq, sds_ring);
1656                         }
1657                 }
1658                 if ((qlcnic_83xx_check(adapter) &&
1659                      !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
1660                     (qlcnic_82xx_check(adapter) &&
1661                      qlcnic_check_multi_tx(adapter))) {
1662                         for (ring = 0; ring < adapter->drv_tx_rings;
1663                              ring++) {
1664                                 tx_ring = &adapter->tx_ring[ring];
1665                                 if (tx_ring->irq)
1666                                         free_irq(tx_ring->irq, tx_ring);
1667                         }
1668                 }
1669         }
1670 }
1671
1672 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1673 {
1674         u32 capab = 0;
1675
1676         if (qlcnic_82xx_check(adapter)) {
1677                 if (adapter->ahw->extra_capability[0] &
1678                     QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1679                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1680         } else {
1681                 capab = adapter->ahw->capabilities;
1682                 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1683                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1684         }
1685 }
1686
1687 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1688 {
1689         int ring;
1690         struct qlcnic_host_rds_ring *rds_ring;
1691
1692         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1693                 return -EIO;
1694
1695         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1696                 return 0;
1697
1698         if (qlcnic_set_eswitch_port_config(adapter))
1699                 return -EIO;
1700
1701         qlcnic_get_lro_mss_capability(adapter);
1702
1703         if (qlcnic_fw_create_ctx(adapter))
1704                 return -EIO;
1705
1706         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1707                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1708                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1709         }
1710
1711         qlcnic_set_multi(netdev);
1712         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1713
1714         adapter->ahw->linkup = 0;
1715
1716         if (adapter->drv_sds_rings > 1)
1717                 qlcnic_config_rss(adapter, 1);
1718
1719         qlcnic_config_intr_coalesce(adapter);
1720
1721         if (netdev->features & NETIF_F_LRO)
1722                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1723
1724         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1725         qlcnic_napi_enable(adapter);
1726
1727         qlcnic_linkevent_request(adapter, 1);
1728
1729         adapter->ahw->reset_context = 0;
1730         return 0;
1731 }
1732
1733 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1734 {
1735         int err = 0;
1736
1737         rtnl_lock();
1738         if (netif_running(netdev))
1739                 err = __qlcnic_up(adapter, netdev);
1740         rtnl_unlock();
1741
1742         return err;
1743 }
1744
1745 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1746 {
1747         int ring;
1748
1749         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1750                 return;
1751
1752         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1753                 return;
1754
1755         if (qlcnic_sriov_vf_check(adapter))
1756                 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1757         smp_mb();
1758         spin_lock(&adapter->tx_clean_lock);
1759         netif_carrier_off(netdev);
1760         adapter->ahw->linkup = 0;
1761         netif_tx_disable(netdev);
1762
1763         qlcnic_free_mac_list(adapter);
1764
1765         if (adapter->fhash.fnum)
1766                 qlcnic_delete_lb_filters(adapter);
1767
1768         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1769
1770         qlcnic_napi_disable(adapter);
1771
1772         qlcnic_fw_destroy_ctx(adapter);
1773         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1774
1775         qlcnic_reset_rx_buffers_list(adapter);
1776
1777         for (ring = 0; ring < adapter->drv_tx_rings; ring++)
1778                 qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
1779         spin_unlock(&adapter->tx_clean_lock);
1780 }
1781
1782 /* Usage: During suspend and firmware recovery module */
1783
1784 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1785 {
1786         rtnl_lock();
1787         if (netif_running(netdev))
1788                 __qlcnic_down(adapter, netdev);
1789         rtnl_unlock();
1790
1791 }
1792
1793 int
1794 qlcnic_attach(struct qlcnic_adapter *adapter)
1795 {
1796         struct net_device *netdev = adapter->netdev;
1797         struct pci_dev *pdev = adapter->pdev;
1798         int err;
1799
1800         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1801                 return 0;
1802
1803         err = qlcnic_napi_add(adapter, netdev);
1804         if (err)
1805                 return err;
1806
1807         err = qlcnic_alloc_sw_resources(adapter);
1808         if (err) {
1809                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1810                 goto err_out_napi_del;
1811         }
1812
1813         err = qlcnic_alloc_hw_resources(adapter);
1814         if (err) {
1815                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1816                 goto err_out_free_sw;
1817         }
1818
1819         err = qlcnic_request_irq(adapter);
1820         if (err) {
1821                 dev_err(&pdev->dev, "failed to setup interrupt\n");
1822                 goto err_out_free_hw;
1823         }
1824
1825         qlcnic_create_sysfs_entries(adapter);
1826
1827         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1828         return 0;
1829
1830 err_out_free_hw:
1831         qlcnic_free_hw_resources(adapter);
1832 err_out_free_sw:
1833         qlcnic_free_sw_resources(adapter);
1834 err_out_napi_del:
1835         qlcnic_napi_del(adapter);
1836         return err;
1837 }
1838
1839 void qlcnic_detach(struct qlcnic_adapter *adapter)
1840 {
1841         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1842                 return;
1843
1844         qlcnic_remove_sysfs_entries(adapter);
1845
1846         qlcnic_free_hw_resources(adapter);
1847         qlcnic_release_rx_buffers(adapter);
1848         qlcnic_free_irq(adapter);
1849         qlcnic_napi_del(adapter);
1850         qlcnic_free_sw_resources(adapter);
1851
1852         adapter->is_up = 0;
1853 }
1854
1855 void qlcnic_diag_free_res(struct net_device *netdev, int drv_sds_rings)
1856 {
1857         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1858         struct qlcnic_host_sds_ring *sds_ring;
1859         int drv_tx_rings = adapter->drv_tx_rings;
1860         int ring;
1861
1862         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1863         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1864                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1865                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1866                         qlcnic_disable_int(sds_ring);
1867                 }
1868         }
1869
1870         qlcnic_fw_destroy_ctx(adapter);
1871
1872         qlcnic_detach(adapter);
1873
1874         adapter->ahw->diag_test = 0;
1875         adapter->drv_sds_rings = drv_sds_rings;
1876         adapter->drv_tx_rings = drv_tx_rings;
1877
1878         if (qlcnic_attach(adapter))
1879                 goto out;
1880
1881         if (netif_running(netdev))
1882                 __qlcnic_up(adapter, netdev);
1883 out:
1884         netif_device_attach(netdev);
1885 }
1886
1887 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
1888 {
1889         struct qlcnic_hardware_context *ahw = adapter->ahw;
1890         int err = 0;
1891
1892         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
1893                                 GFP_KERNEL);
1894         if (!adapter->recv_ctx) {
1895                 err = -ENOMEM;
1896                 goto err_out;
1897         }
1898         /* Initialize interrupt coalesce parameters */
1899         ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1900         ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1901         ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1902         ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1903         if (qlcnic_83xx_check(adapter)) {
1904                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1905                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1906         }
1907         /* clear stats */
1908         memset(&adapter->stats, 0, sizeof(adapter->stats));
1909 err_out:
1910         return err;
1911 }
1912
1913 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
1914 {
1915         kfree(adapter->recv_ctx);
1916         adapter->recv_ctx = NULL;
1917
1918         if (adapter->ahw->fw_dump.tmpl_hdr) {
1919                 vfree(adapter->ahw->fw_dump.tmpl_hdr);
1920                 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1921         }
1922
1923         kfree(adapter->ahw->reset.buff);
1924         adapter->ahw->fw_dump.tmpl_hdr = NULL;
1925 }
1926
1927 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1928 {
1929         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1930         struct qlcnic_host_sds_ring *sds_ring;
1931         struct qlcnic_host_rds_ring *rds_ring;
1932         int ring;
1933         int ret;
1934
1935         netif_device_detach(netdev);
1936
1937         if (netif_running(netdev))
1938                 __qlcnic_down(adapter, netdev);
1939
1940         qlcnic_detach(adapter);
1941
1942         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
1943         adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
1944         adapter->ahw->diag_test = test;
1945         adapter->ahw->linkup = 0;
1946
1947         ret = qlcnic_attach(adapter);
1948         if (ret) {
1949                 netif_device_attach(netdev);
1950                 return ret;
1951         }
1952
1953         ret = qlcnic_fw_create_ctx(adapter);
1954         if (ret) {
1955                 qlcnic_detach(adapter);
1956                 netif_device_attach(netdev);
1957                 return ret;
1958         }
1959
1960         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1961                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1962                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1963         }
1964
1965         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1966                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1967                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1968                         qlcnic_enable_int(sds_ring);
1969                 }
1970         }
1971
1972         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
1973                 adapter->ahw->loopback_state = 0;
1974                 qlcnic_linkevent_request(adapter, 1);
1975         }
1976
1977         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1978
1979         return 0;
1980 }
1981
1982 /* Reset context in hardware only */
1983 static int
1984 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1985 {
1986         struct net_device *netdev = adapter->netdev;
1987
1988         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1989                 return -EBUSY;
1990
1991         netif_device_detach(netdev);
1992
1993         qlcnic_down(adapter, netdev);
1994
1995         qlcnic_up(adapter, netdev);
1996
1997         netif_device_attach(netdev);
1998
1999         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2000         dev_err(&adapter->pdev->dev, "%s:\n", __func__);
2001         return 0;
2002 }
2003
2004 int
2005 qlcnic_reset_context(struct qlcnic_adapter *adapter)
2006 {
2007         int err = 0;
2008         struct net_device *netdev = adapter->netdev;
2009
2010         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2011                 return -EBUSY;
2012
2013         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
2014
2015                 netif_device_detach(netdev);
2016
2017                 if (netif_running(netdev))
2018                         __qlcnic_down(adapter, netdev);
2019
2020                 qlcnic_detach(adapter);
2021
2022                 if (netif_running(netdev)) {
2023                         err = qlcnic_attach(adapter);
2024                         if (!err) {
2025                                 __qlcnic_up(adapter, netdev);
2026                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2027                         }
2028                 }
2029
2030                 netif_device_attach(netdev);
2031         }
2032
2033         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2034         return err;
2035 }
2036
2037 void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
2038 {
2039         struct qlcnic_hardware_context *ahw = adapter->ahw;
2040         u16 act_pci_fn = ahw->act_pci_func;
2041         u16 count;
2042
2043         ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
2044         if (act_pci_fn <= 2)
2045                 count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
2046                          act_pci_fn;
2047         else
2048                 count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
2049                          act_pci_fn;
2050         ahw->max_uc_count = count;
2051 }
2052
2053 int
2054 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
2055                     int pci_using_dac)
2056 {
2057         int err;
2058         struct pci_dev *pdev = adapter->pdev;
2059
2060         adapter->rx_csum = 1;
2061         adapter->ahw->mc_enabled = 0;
2062         qlcnic_set_mac_filter_count(adapter);
2063
2064         netdev->netdev_ops         = &qlcnic_netdev_ops;
2065         netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
2066
2067         qlcnic_change_mtu(netdev, netdev->mtu);
2068
2069         if (qlcnic_sriov_vf_check(adapter))
2070                 SET_ETHTOOL_OPS(netdev, &qlcnic_sriov_vf_ethtool_ops);
2071         else
2072                 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
2073
2074         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2075                              NETIF_F_IPV6_CSUM | NETIF_F_GRO |
2076                              NETIF_F_HW_VLAN_CTAG_RX);
2077         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
2078                                   NETIF_F_IPV6_CSUM);
2079
2080         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
2081                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
2082                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
2083         }
2084
2085         if (pci_using_dac) {
2086                 netdev->features |= NETIF_F_HIGHDMA;
2087                 netdev->vlan_features |= NETIF_F_HIGHDMA;
2088         }
2089
2090         if (qlcnic_vlan_tx_check(adapter))
2091                 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
2092
2093         if (qlcnic_sriov_vf_check(adapter))
2094                 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2095
2096         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
2097                 netdev->features |= NETIF_F_LRO;
2098
2099         netdev->hw_features = netdev->features;
2100         netdev->priv_flags |= IFF_UNICAST_FLT;
2101         netdev->irq = adapter->msix_entries[0].vector;
2102
2103         err = qlcnic_set_real_num_queues(adapter, netdev);
2104         if (err)
2105                 return err;
2106
2107         err = register_netdev(netdev);
2108         if (err) {
2109                 dev_err(&pdev->dev, "failed to register net device\n");
2110                 return err;
2111         }
2112
2113         qlcnic_dcb_init_dcbnl_ops(adapter->dcb);
2114
2115         return 0;
2116 }
2117
2118 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
2119 {
2120         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
2121                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
2122                 *pci_using_dac = 1;
2123         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
2124                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
2125                 *pci_using_dac = 0;
2126         else {
2127                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
2128                 return -EIO;
2129         }
2130
2131         return 0;
2132 }
2133
2134 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
2135 {
2136         int ring;
2137         struct qlcnic_host_tx_ring *tx_ring;
2138
2139         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2140                 tx_ring = &adapter->tx_ring[ring];
2141                 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
2142                         vfree(tx_ring->cmd_buf_arr);
2143                         tx_ring->cmd_buf_arr = NULL;
2144                 }
2145         }
2146         if (adapter->tx_ring != NULL)
2147                 kfree(adapter->tx_ring);
2148 }
2149
2150 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
2151                           struct net_device *netdev)
2152 {
2153         int ring, vector, index;
2154         struct qlcnic_host_tx_ring *tx_ring;
2155         struct qlcnic_cmd_buffer *cmd_buf_arr;
2156
2157         tx_ring = kcalloc(adapter->drv_tx_rings,
2158                           sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
2159         if (tx_ring == NULL)
2160                 return -ENOMEM;
2161
2162         adapter->tx_ring = tx_ring;
2163
2164         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2165                 tx_ring = &adapter->tx_ring[ring];
2166                 tx_ring->num_desc = adapter->num_txd;
2167                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
2168                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
2169                 if (cmd_buf_arr == NULL) {
2170                         qlcnic_free_tx_rings(adapter);
2171                         return -ENOMEM;
2172                 }
2173                 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
2174                 tx_ring->cmd_buf_arr = cmd_buf_arr;
2175         }
2176
2177         if (qlcnic_83xx_check(adapter) ||
2178             (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
2179                 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2180                         tx_ring = &adapter->tx_ring[ring];
2181                         tx_ring->adapter = adapter;
2182                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
2183                                 index = adapter->drv_sds_rings + ring;
2184                                 vector = adapter->msix_entries[index].vector;
2185                                 tx_ring->irq = vector;
2186                         }
2187                 }
2188         }
2189
2190         return 0;
2191 }
2192
2193 void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
2194 {
2195         struct qlcnic_hardware_context *ahw = adapter->ahw;
2196         u32 fw_cmd = 0;
2197
2198         if (qlcnic_82xx_check(adapter))
2199                 fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
2200         else if (qlcnic_83xx_check(adapter))
2201                 fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
2202
2203         if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER)
2204                 qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
2205 }
2206
2207 static int
2208 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2209 {
2210         struct net_device *netdev = NULL;
2211         struct qlcnic_adapter *adapter = NULL;
2212         struct qlcnic_hardware_context *ahw;
2213         int err, pci_using_dac = -1;
2214         char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
2215         struct qlcnic_dcb *dcb;
2216
2217         if (pdev->is_virtfn)
2218                 return -ENODEV;
2219
2220         err = pci_enable_device(pdev);
2221         if (err)
2222                 return err;
2223
2224         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2225                 err = -ENODEV;
2226                 goto err_out_disable_pdev;
2227         }
2228
2229         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
2230         if (err)
2231                 goto err_out_disable_pdev;
2232
2233         err = pci_request_regions(pdev, qlcnic_driver_name);
2234         if (err)
2235                 goto err_out_disable_pdev;
2236
2237         pci_set_master(pdev);
2238         pci_enable_pcie_error_reporting(pdev);
2239
2240         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2241         if (!ahw) {
2242                 err = -ENOMEM;
2243                 goto err_out_free_res;
2244         }
2245
2246         switch (ent->device) {
2247         case PCI_DEVICE_ID_QLOGIC_QLE824X:
2248                 ahw->hw_ops = &qlcnic_hw_ops;
2249                 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2250                 break;
2251         case PCI_DEVICE_ID_QLOGIC_QLE834X:
2252         case PCI_DEVICE_ID_QLOGIC_QLE844X:
2253                 qlcnic_83xx_register_map(ahw);
2254                 break;
2255         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2256         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2257                 qlcnic_sriov_vf_register_map(ahw);
2258                 break;
2259         default:
2260                 goto err_out_free_hw_res;
2261         }
2262
2263         err = qlcnic_setup_pci_map(pdev, ahw);
2264         if (err)
2265                 goto err_out_free_hw_res;
2266
2267         netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
2268                                    QLCNIC_MAX_TX_RINGS);
2269         if (!netdev) {
2270                 err = -ENOMEM;
2271                 goto err_out_iounmap;
2272         }
2273
2274         SET_NETDEV_DEV(netdev, &pdev->dev);
2275
2276         adapter = netdev_priv(netdev);
2277         adapter->netdev  = netdev;
2278         adapter->pdev    = pdev;
2279         adapter->ahw = ahw;
2280
2281         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2282         if (adapter->qlcnic_wq == NULL) {
2283                 err = -ENOMEM;
2284                 dev_err(&pdev->dev, "Failed to create workqueue\n");
2285                 goto err_out_free_netdev;
2286         }
2287
2288         err = qlcnic_alloc_adapter_resources(adapter);
2289         if (err)
2290                 goto err_out_free_wq;
2291
2292         adapter->dev_rst_time = jiffies;
2293         adapter->ahw->revision_id = pdev->revision;
2294         if (qlcnic_mac_learn == FDB_MAC_LEARN)
2295                 adapter->fdb_mac_learn = true;
2296         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2297                 adapter->drv_mac_learn = true;
2298
2299         rwlock_init(&adapter->ahw->crb_lock);
2300         mutex_init(&adapter->ahw->mem_lock);
2301
2302         spin_lock_init(&adapter->tx_clean_lock);
2303         INIT_LIST_HEAD(&adapter->mac_list);
2304
2305         qlcnic_register_dcb(adapter);
2306
2307         if (qlcnic_82xx_check(adapter)) {
2308                 qlcnic_check_vf(adapter, ent);
2309                 adapter->portnum = adapter->ahw->pci_func;
2310                 err = qlcnic_start_firmware(adapter);
2311                 if (err) {
2312                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
2313                                 "\t\tIf reboot doesn't help, try flashing the card\n");
2314                         goto err_out_maintenance_mode;
2315                 }
2316
2317                 /* compute and set default and max tx/sds rings */
2318                 if (adapter->ahw->msix_supported) {
2319                         if (qlcnic_check_multi_tx_capability(adapter) == 1)
2320                                 qlcnic_set_tx_ring_count(adapter,
2321                                                          QLCNIC_SINGLE_RING);
2322                         else
2323                                 qlcnic_set_tx_ring_count(adapter,
2324                                                          QLCNIC_DEF_TX_RINGS);
2325                         qlcnic_set_sds_ring_count(adapter,
2326                                                   QLCNIC_DEF_SDS_RINGS);
2327                 } else {
2328                         qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
2329                         qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
2330                 }
2331
2332                 err = qlcnic_setup_idc_param(adapter);
2333                 if (err)
2334                         goto err_out_free_hw;
2335
2336                 adapter->flags |= QLCNIC_NEED_FLR;
2337
2338                 dcb = adapter->dcb;
2339
2340                 if (dcb && qlcnic_dcb_attach(dcb))
2341                         qlcnic_clear_dcb_ops(dcb);
2342         } else if (qlcnic_83xx_check(adapter)) {
2343                 qlcnic_83xx_check_vf(adapter, ent);
2344                 adapter->portnum = adapter->ahw->pci_func;
2345                 err = qlcnic_83xx_init(adapter, pci_using_dac);
2346                 if (err) {
2347                         switch (err) {
2348                         case -ENOTRECOVERABLE:
2349                                 dev_err(&pdev->dev, "Adapter initialization failed due to a faulty hardware. Please reboot\n");
2350                                 dev_err(&pdev->dev, "If reboot doesn't help, please replace the adapter with new one and return the faulty adapter for repair\n");
2351                                 goto err_out_free_hw;
2352                         case -ENOMEM:
2353                                 dev_err(&pdev->dev, "Adapter initialization failed. Please reboot\n");
2354                                 goto err_out_free_hw;
2355                         default:
2356                                 dev_err(&pdev->dev, "Adapter initialization failed. A reboot may be required to recover from this failure\n");
2357                                 dev_err(&pdev->dev, "If reboot does not help to recover from this failure, try a flash update of the adapter\n");
2358                                 goto err_out_maintenance_mode;
2359                         }
2360                 }
2361
2362                 if (qlcnic_sriov_vf_check(adapter))
2363                         return 0;
2364         } else {
2365                 dev_err(&pdev->dev,
2366                         "%s: failed. Please Reboot\n", __func__);
2367                 goto err_out_free_hw;
2368         }
2369
2370         if (qlcnic_read_mac_addr(adapter))
2371                 dev_warn(&pdev->dev, "failed to read mac addr\n");
2372
2373         qlcnic_read_phys_port_id(adapter);
2374
2375         if (adapter->portnum == 0) {
2376                 qlcnic_get_board_name(adapter, board_name);
2377
2378                 pr_info("%s: %s Board Chip rev 0x%x\n",
2379                         module_name(THIS_MODULE),
2380                         board_name, adapter->ahw->revision_id);
2381         }
2382
2383         if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2384             !!qlcnic_use_msi)
2385                 dev_warn(&pdev->dev,
2386                          "Device does not support MSI interrupts\n");
2387
2388         if (qlcnic_82xx_check(adapter)) {
2389                 err = qlcnic_setup_intr(adapter);
2390                 if (err) {
2391                         dev_err(&pdev->dev, "Failed to setup interrupt\n");
2392                         goto err_out_disable_msi;
2393                 }
2394         }
2395
2396         err = qlcnic_get_act_pci_func(adapter);
2397         if (err)
2398                 goto err_out_disable_mbx_intr;
2399
2400         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2401         if (err)
2402                 goto err_out_disable_mbx_intr;
2403
2404         if (adapter->portnum == 0)
2405                 qlcnic_set_drv_version(adapter);
2406
2407         pci_set_drvdata(pdev, adapter);
2408
2409         if (qlcnic_82xx_check(adapter))
2410                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2411                                      FW_POLL_DELAY);
2412
2413         switch (adapter->ahw->port_type) {
2414         case QLCNIC_GBE:
2415                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2416                                 adapter->netdev->name);
2417                 break;
2418         case QLCNIC_XGBE:
2419                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2420                                 adapter->netdev->name);
2421                 break;
2422         }
2423
2424         if (adapter->drv_mac_learn)
2425                 qlcnic_alloc_lb_filters_mem(adapter);
2426
2427         qlcnic_add_sysfs(adapter);
2428
2429         return 0;
2430
2431 err_out_disable_mbx_intr:
2432         if (qlcnic_83xx_check(adapter))
2433                 qlcnic_83xx_free_mbx_intr(adapter);
2434
2435 err_out_disable_msi:
2436         qlcnic_teardown_intr(adapter);
2437         qlcnic_cancel_idc_work(adapter);
2438         qlcnic_clr_all_drv_state(adapter, 0);
2439
2440 err_out_free_hw:
2441         qlcnic_free_adapter_resources(adapter);
2442
2443 err_out_free_wq:
2444         destroy_workqueue(adapter->qlcnic_wq);
2445
2446 err_out_free_netdev:
2447         free_netdev(netdev);
2448
2449 err_out_iounmap:
2450         qlcnic_cleanup_pci_map(ahw);
2451
2452 err_out_free_hw_res:
2453         kfree(ahw);
2454
2455 err_out_free_res:
2456         pci_release_regions(pdev);
2457
2458 err_out_disable_pdev:
2459         pci_disable_device(pdev);
2460         return err;
2461
2462 err_out_maintenance_mode:
2463         set_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state);
2464         netdev->netdev_ops = &qlcnic_netdev_failed_ops;
2465         SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_failed_ops);
2466         ahw->port_type = QLCNIC_XGBE;
2467
2468         if (qlcnic_83xx_check(adapter))
2469                 adapter->tgt_status_reg = NULL;
2470         else
2471                 ahw->board_type = QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS;
2472
2473         err = register_netdev(netdev);
2474
2475         if (err) {
2476                 dev_err(&pdev->dev, "Failed to register net device\n");
2477                 qlcnic_clr_all_drv_state(adapter, 0);
2478                 goto err_out_free_hw;
2479         }
2480
2481         pci_set_drvdata(pdev, adapter);
2482         qlcnic_add_sysfs(adapter);
2483
2484         return 0;
2485 }
2486
2487 static void qlcnic_remove(struct pci_dev *pdev)
2488 {
2489         struct qlcnic_adapter *adapter;
2490         struct net_device *netdev;
2491         struct qlcnic_hardware_context *ahw;
2492
2493         adapter = pci_get_drvdata(pdev);
2494         if (adapter == NULL)
2495                 return;
2496
2497         netdev = adapter->netdev;
2498         qlcnic_sriov_pf_disable(adapter);
2499
2500         qlcnic_cancel_idc_work(adapter);
2501         ahw = adapter->ahw;
2502
2503         qlcnic_dcb_free(adapter->dcb);
2504
2505         unregister_netdev(netdev);
2506         qlcnic_sriov_cleanup(adapter);
2507
2508         if (qlcnic_83xx_check(adapter)) {
2509                 qlcnic_83xx_register_nic_idc_func(adapter, 0);
2510                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2511                 qlcnic_83xx_free_mbx_intr(adapter);
2512                 qlcnic_83xx_detach_mailbox_work(adapter);
2513                 qlcnic_83xx_free_mailbox(ahw->mailbox);
2514                 kfree(ahw->fw_info);
2515         }
2516
2517         qlcnic_detach(adapter);
2518
2519         if (adapter->npars != NULL)
2520                 kfree(adapter->npars);
2521         if (adapter->eswitch != NULL)
2522                 kfree(adapter->eswitch);
2523
2524         if (qlcnic_82xx_check(adapter))
2525                 qlcnic_clr_all_drv_state(adapter, 0);
2526
2527         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2528
2529         qlcnic_free_lb_filters_mem(adapter);
2530
2531         qlcnic_teardown_intr(adapter);
2532
2533         qlcnic_remove_sysfs(adapter);
2534
2535         qlcnic_cleanup_pci_map(adapter->ahw);
2536
2537         qlcnic_release_firmware(adapter);
2538
2539         pci_disable_pcie_error_reporting(pdev);
2540         pci_release_regions(pdev);
2541         pci_disable_device(pdev);
2542
2543         if (adapter->qlcnic_wq) {
2544                 destroy_workqueue(adapter->qlcnic_wq);
2545                 adapter->qlcnic_wq = NULL;
2546         }
2547
2548         qlcnic_free_adapter_resources(adapter);
2549         kfree(ahw);
2550         free_netdev(netdev);
2551 }
2552
2553 static void qlcnic_shutdown(struct pci_dev *pdev)
2554 {
2555         if (__qlcnic_shutdown(pdev))
2556                 return;
2557
2558         pci_disable_device(pdev);
2559 }
2560
2561 #ifdef CONFIG_PM
2562 static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2563 {
2564         int retval;
2565
2566         retval = __qlcnic_shutdown(pdev);
2567         if (retval)
2568                 return retval;
2569
2570         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2571         return 0;
2572 }
2573
2574 static int qlcnic_resume(struct pci_dev *pdev)
2575 {
2576         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2577         int err;
2578
2579         err = pci_enable_device(pdev);
2580         if (err)
2581                 return err;
2582
2583         pci_set_power_state(pdev, PCI_D0);
2584         pci_set_master(pdev);
2585         pci_restore_state(pdev);
2586
2587         return  __qlcnic_resume(adapter);
2588 }
2589 #endif
2590
2591 static int qlcnic_open(struct net_device *netdev)
2592 {
2593         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2594         int err;
2595
2596         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
2597                 netdev_err(netdev, "%s: Device is in non-operational state\n",
2598                            __func__);
2599
2600                 return -EIO;
2601         }
2602
2603         netif_carrier_off(netdev);
2604
2605         err = qlcnic_attach(adapter);
2606         if (err)
2607                 return err;
2608
2609         err = __qlcnic_up(adapter, netdev);
2610         if (err)
2611                 goto err_out;
2612
2613         netif_tx_start_all_queues(netdev);
2614
2615         return 0;
2616
2617 err_out:
2618         qlcnic_detach(adapter);
2619         return err;
2620 }
2621
2622 /*
2623  * qlcnic_close - Disables a network interface entry point
2624  */
2625 static int qlcnic_close(struct net_device *netdev)
2626 {
2627         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2628
2629         __qlcnic_down(adapter, netdev);
2630
2631         return 0;
2632 }
2633
2634 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2635 {
2636         void *head;
2637         int i;
2638         struct net_device *netdev = adapter->netdev;
2639         u32 filter_size = 0;
2640         u16 act_pci_func = 0;
2641
2642         if (adapter->fhash.fmax && adapter->fhash.fhead)
2643                 return;
2644
2645         act_pci_func = adapter->ahw->act_pci_func;
2646         spin_lock_init(&adapter->mac_learn_lock);
2647         spin_lock_init(&adapter->rx_mac_learn_lock);
2648
2649         if (qlcnic_82xx_check(adapter)) {
2650                 filter_size = QLCNIC_LB_MAX_FILTERS;
2651                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2652         } else {
2653                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2654                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2655         }
2656
2657         head = kcalloc(adapter->fhash.fbucket_size,
2658                        sizeof(struct hlist_head), GFP_ATOMIC);
2659
2660         if (!head)
2661                 return;
2662
2663         adapter->fhash.fmax = (filter_size / act_pci_func);
2664         adapter->fhash.fhead = head;
2665
2666         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2667                     act_pci_func, adapter->fhash.fmax);
2668
2669         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2670                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2671
2672         adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2673
2674         head = kcalloc(adapter->rx_fhash.fbucket_size,
2675                        sizeof(struct hlist_head), GFP_ATOMIC);
2676
2677         if (!head)
2678                 return;
2679
2680         adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2681         adapter->rx_fhash.fhead = head;
2682
2683         for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2684                 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2685 }
2686
2687 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2688 {
2689         if (adapter->fhash.fmax && adapter->fhash.fhead)
2690                 kfree(adapter->fhash.fhead);
2691
2692         adapter->fhash.fhead = NULL;
2693         adapter->fhash.fmax = 0;
2694
2695         if (adapter->rx_fhash.fmax && adapter->rx_fhash.fhead)
2696                 kfree(adapter->rx_fhash.fhead);
2697
2698         adapter->rx_fhash.fmax = 0;
2699         adapter->rx_fhash.fhead = NULL;
2700 }
2701
2702 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2703 {
2704         struct net_device *netdev = adapter->netdev;
2705         u32 temp_state, temp_val, temp = 0;
2706         int rv = 0;
2707
2708         if (qlcnic_83xx_check(adapter))
2709                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2710
2711         if (qlcnic_82xx_check(adapter))
2712                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2713
2714         temp_state = qlcnic_get_temp_state(temp);
2715         temp_val = qlcnic_get_temp_val(temp);
2716
2717         if (temp_state == QLCNIC_TEMP_PANIC) {
2718                 dev_err(&netdev->dev,
2719                        "Device temperature %d degrees C exceeds"
2720                        " maximum allowed. Hardware has been shut down.\n",
2721                        temp_val);
2722                 rv = 1;
2723         } else if (temp_state == QLCNIC_TEMP_WARN) {
2724                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2725                         dev_err(&netdev->dev,
2726                                "Device temperature %d degrees C "
2727                                "exceeds operating range."
2728                                " Immediate action needed.\n",
2729                                temp_val);
2730                 }
2731         } else {
2732                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2733                         dev_info(&netdev->dev,
2734                                "Device temperature is now %d degrees C"
2735                                " in normal range.\n", temp_val);
2736                 }
2737         }
2738         adapter->ahw->temp = temp_state;
2739         return rv;
2740 }
2741
2742 static void qlcnic_tx_timeout(struct net_device *netdev)
2743 {
2744         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2745         struct qlcnic_host_tx_ring *tx_ring;
2746         int ring;
2747
2748         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2749                 return;
2750
2751         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS) {
2752                 netdev_info(netdev, "Tx timeout, reset the adapter.\n");
2753                 if (qlcnic_82xx_check(adapter))
2754                         adapter->need_fw_reset = 1;
2755                 else if (qlcnic_83xx_check(adapter))
2756                         qlcnic_83xx_idc_request_reset(adapter,
2757                                                       QLCNIC_FORCE_FW_DUMP_KEY);
2758         } else {
2759                 netdev_info(netdev, "Tx timeout, reset adapter context.\n");
2760                 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2761                         tx_ring = &adapter->tx_ring[ring];
2762                         netdev_info(netdev, "Tx ring=%d\n", ring);
2763                         netdev_info(netdev,
2764                                     "crb_intr_mask=%d, producer=%d, sw_consumer=%d, hw_consumer=%d\n",
2765                                     readl(tx_ring->crb_intr_mask),
2766                                     readl(tx_ring->crb_cmd_producer),
2767                                     tx_ring->sw_consumer,
2768                                     le32_to_cpu(*(tx_ring->hw_consumer)));
2769                         netdev_info(netdev,
2770                                     "xmit_finished=%llu, xmit_called=%llu, xmit_on=%llu, xmit_off=%llu\n",
2771                                     tx_ring->tx_stats.xmit_finished,
2772                                     tx_ring->tx_stats.xmit_called,
2773                                     tx_ring->tx_stats.xmit_on,
2774                                     tx_ring->tx_stats.xmit_off);
2775                 }
2776                 adapter->ahw->reset_context = 1;
2777         }
2778 }
2779
2780 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2781 {
2782         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2783         struct net_device_stats *stats = &netdev->stats;
2784
2785         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2786         stats->tx_packets = adapter->stats.xmitfinished;
2787         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2788         stats->tx_bytes = adapter->stats.txbytes;
2789         stats->rx_dropped = adapter->stats.rxdropped;
2790         stats->tx_dropped = adapter->stats.txdropped;
2791
2792         return stats;
2793 }
2794
2795 irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
2796 {
2797         u32 status;
2798
2799         status = readl(adapter->isr_int_vec);
2800
2801         if (!(status & adapter->ahw->int_vec_bit))
2802                 return IRQ_NONE;
2803
2804         /* check interrupt state machine, to be sure */
2805         status = readl(adapter->crb_int_state_reg);
2806         if (!ISR_LEGACY_INT_TRIGGERED(status))
2807                 return IRQ_NONE;
2808
2809         writel(0xffffffff, adapter->tgt_status_reg);
2810         /* read twice to ensure write is flushed */
2811         readl(adapter->isr_int_vec);
2812         readl(adapter->isr_int_vec);
2813
2814         return IRQ_HANDLED;
2815 }
2816
2817 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2818 {
2819         struct qlcnic_host_sds_ring *sds_ring = data;
2820         struct qlcnic_adapter *adapter = sds_ring->adapter;
2821
2822         if (adapter->flags & QLCNIC_MSIX_ENABLED)
2823                 goto done;
2824         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2825                 writel(0xffffffff, adapter->tgt_status_reg);
2826                 goto done;
2827         }
2828
2829         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2830                 return IRQ_NONE;
2831
2832 done:
2833         adapter->ahw->diag_cnt++;
2834         qlcnic_enable_int(sds_ring);
2835         return IRQ_HANDLED;
2836 }
2837
2838 static irqreturn_t qlcnic_intr(int irq, void *data)
2839 {
2840         struct qlcnic_host_sds_ring *sds_ring = data;
2841         struct qlcnic_adapter *adapter = sds_ring->adapter;
2842
2843         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2844                 return IRQ_NONE;
2845
2846         napi_schedule(&sds_ring->napi);
2847
2848         return IRQ_HANDLED;
2849 }
2850
2851 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2852 {
2853         struct qlcnic_host_sds_ring *sds_ring = data;
2854         struct qlcnic_adapter *adapter = sds_ring->adapter;
2855
2856         /* clear interrupt */
2857         writel(0xffffffff, adapter->tgt_status_reg);
2858
2859         napi_schedule(&sds_ring->napi);
2860         return IRQ_HANDLED;
2861 }
2862
2863 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2864 {
2865         struct qlcnic_host_sds_ring *sds_ring = data;
2866
2867         napi_schedule(&sds_ring->napi);
2868         return IRQ_HANDLED;
2869 }
2870
2871 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
2872 {
2873         struct qlcnic_host_tx_ring *tx_ring = data;
2874
2875         napi_schedule(&tx_ring->napi);
2876         return IRQ_HANDLED;
2877 }
2878
2879 #ifdef CONFIG_NET_POLL_CONTROLLER
2880 static void qlcnic_poll_controller(struct net_device *netdev)
2881 {
2882         int ring;
2883         struct qlcnic_host_sds_ring *sds_ring;
2884         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2885         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2886
2887         disable_irq(adapter->irq);
2888         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2889                 sds_ring = &recv_ctx->sds_rings[ring];
2890                 qlcnic_intr(adapter->irq, sds_ring);
2891         }
2892         enable_irq(adapter->irq);
2893 }
2894 #endif
2895
2896 static void
2897 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2898 {
2899         u32 val;
2900
2901         val = adapter->portnum & 0xf;
2902         val |= encoding << 7;
2903         val |= (jiffies - adapter->dev_rst_time) << 8;
2904
2905         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2906         adapter->dev_rst_time = jiffies;
2907 }
2908
2909 static int
2910 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2911 {
2912         u32  val;
2913
2914         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2915                         state != QLCNIC_DEV_NEED_QUISCENT);
2916
2917         if (qlcnic_api_lock(adapter))
2918                 return -EIO;
2919
2920         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2921
2922         if (state == QLCNIC_DEV_NEED_RESET)
2923                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2924         else if (state == QLCNIC_DEV_NEED_QUISCENT)
2925                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2926
2927         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2928
2929         qlcnic_api_unlock(adapter);
2930
2931         return 0;
2932 }
2933
2934 static int
2935 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2936 {
2937         u32  val;
2938
2939         if (qlcnic_api_lock(adapter))
2940                 return -EBUSY;
2941
2942         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2943         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2944         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2945
2946         qlcnic_api_unlock(adapter);
2947
2948         return 0;
2949 }
2950
2951 void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2952 {
2953         u32  val;
2954
2955         if (qlcnic_api_lock(adapter))
2956                 goto err;
2957
2958         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2959         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2960         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2961
2962         if (failed) {
2963                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2964                                     QLCNIC_DEV_FAILED);
2965                 dev_info(&adapter->pdev->dev,
2966                                 "Device state set to Failed. Please Reboot\n");
2967         } else if (!(val & 0x11111111))
2968                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2969                                     QLCNIC_DEV_COLD);
2970
2971         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2972         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2973         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2974
2975         qlcnic_api_unlock(adapter);
2976 err:
2977         adapter->fw_fail_cnt = 0;
2978         adapter->flags &= ~QLCNIC_FW_HANG;
2979         clear_bit(__QLCNIC_START_FW, &adapter->state);
2980         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2981 }
2982
2983 /* Grab api lock, before checking state */
2984 static int
2985 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2986 {
2987         int act, state, active_mask;
2988         struct qlcnic_hardware_context *ahw = adapter->ahw;
2989
2990         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2991         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2992
2993         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
2994                 active_mask = (~(1 << (ahw->pci_func * 4)));
2995                 act = act & active_mask;
2996         }
2997
2998         if (((state & 0x11111111) == (act & 0x11111111)) ||
2999                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
3000                 return 0;
3001         else
3002                 return 1;
3003 }
3004
3005 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
3006 {
3007         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
3008
3009         if (val != QLCNIC_DRV_IDC_VER) {
3010                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
3011                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
3012         }
3013
3014         return 0;
3015 }
3016
3017 static int
3018 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
3019 {
3020         u32 val, prev_state;
3021         u8 dev_init_timeo = adapter->dev_init_timeo;
3022         u8 portnum = adapter->portnum;
3023         u8 ret;
3024
3025         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
3026                 return 1;
3027
3028         if (qlcnic_api_lock(adapter))
3029                 return -1;
3030
3031         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3032         if (!(val & (1 << (portnum * 4)))) {
3033                 QLC_DEV_SET_REF_CNT(val, portnum);
3034                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3035         }
3036
3037         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3038         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
3039
3040         switch (prev_state) {
3041         case QLCNIC_DEV_COLD:
3042                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3043                                     QLCNIC_DEV_INITIALIZING);
3044                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
3045                                     QLCNIC_DRV_IDC_VER);
3046                 qlcnic_idc_debug_info(adapter, 0);
3047                 qlcnic_api_unlock(adapter);
3048                 return 1;
3049
3050         case QLCNIC_DEV_READY:
3051                 ret = qlcnic_check_idc_ver(adapter);
3052                 qlcnic_api_unlock(adapter);
3053                 return ret;
3054
3055         case QLCNIC_DEV_NEED_RESET:
3056                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3057                 QLC_DEV_SET_RST_RDY(val, portnum);
3058                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3059                 break;
3060
3061         case QLCNIC_DEV_NEED_QUISCENT:
3062                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3063                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
3064                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3065                 break;
3066
3067         case QLCNIC_DEV_FAILED:
3068                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
3069                 qlcnic_api_unlock(adapter);
3070                 return -1;
3071
3072         case QLCNIC_DEV_INITIALIZING:
3073         case QLCNIC_DEV_QUISCENT:
3074                 break;
3075         }
3076
3077         qlcnic_api_unlock(adapter);
3078
3079         do {
3080                 msleep(1000);
3081                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3082
3083                 if (prev_state == QLCNIC_DEV_QUISCENT)
3084                         continue;
3085         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
3086
3087         if (!dev_init_timeo) {
3088                 dev_err(&adapter->pdev->dev,
3089                         "Waiting for device to initialize timeout\n");
3090                 return -1;
3091         }
3092
3093         if (qlcnic_api_lock(adapter))
3094                 return -1;
3095
3096         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3097         QLC_DEV_CLR_RST_QSCNT(val, portnum);
3098         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3099
3100         ret = qlcnic_check_idc_ver(adapter);
3101         qlcnic_api_unlock(adapter);
3102
3103         return ret;
3104 }
3105
3106 static void
3107 qlcnic_fwinit_work(struct work_struct *work)
3108 {
3109         struct qlcnic_adapter *adapter = container_of(work,
3110                         struct qlcnic_adapter, fw_work.work);
3111         u32 dev_state = 0xf;
3112         u32 val;
3113
3114         if (qlcnic_api_lock(adapter))
3115                 goto err_ret;
3116
3117         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3118         if (dev_state == QLCNIC_DEV_QUISCENT ||
3119             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3120                 qlcnic_api_unlock(adapter);
3121                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
3122                                                 FW_POLL_DELAY * 2);
3123                 return;
3124         }
3125
3126         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
3127                 qlcnic_api_unlock(adapter);
3128                 goto wait_npar;
3129         }
3130
3131         if (dev_state == QLCNIC_DEV_INITIALIZING ||
3132             dev_state == QLCNIC_DEV_READY) {
3133                 dev_info(&adapter->pdev->dev, "Detected state change from "
3134                                 "DEV_NEED_RESET, skipping ack check\n");
3135                 goto skip_ack_check;
3136         }
3137
3138         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
3139                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
3140                                         adapter->reset_ack_timeo);
3141                 goto skip_ack_check;
3142         }
3143
3144         if (!qlcnic_check_drv_state(adapter)) {
3145 skip_ack_check:
3146                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3147
3148                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
3149                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3150                                             QLCNIC_DEV_INITIALIZING);
3151                         set_bit(__QLCNIC_START_FW, &adapter->state);
3152                         QLCDB(adapter, DRV, "Restarting fw\n");
3153                         qlcnic_idc_debug_info(adapter, 0);
3154                         val = QLC_SHARED_REG_RD32(adapter,
3155                                                   QLCNIC_CRB_DRV_STATE);
3156                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3157                         QLC_SHARED_REG_WR32(adapter,
3158                                             QLCNIC_CRB_DRV_STATE, val);
3159                 }
3160
3161                 qlcnic_api_unlock(adapter);
3162
3163                 rtnl_lock();
3164                 if (qlcnic_check_fw_dump_state(adapter) &&
3165                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3166                         QLCDB(adapter, DRV, "Take FW dump\n");
3167                         qlcnic_dump_fw(adapter);
3168                         adapter->flags |= QLCNIC_FW_HANG;
3169                 }
3170                 rtnl_unlock();
3171
3172                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
3173                 if (!adapter->nic_ops->start_firmware(adapter)) {
3174                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3175                         adapter->fw_wait_cnt = 0;
3176                         return;
3177                 }
3178                 goto err_ret;
3179         }
3180
3181         qlcnic_api_unlock(adapter);
3182
3183 wait_npar:
3184         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3185         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
3186
3187         switch (dev_state) {
3188         case QLCNIC_DEV_READY:
3189                 if (!qlcnic_start_firmware(adapter)) {
3190                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3191                         adapter->fw_wait_cnt = 0;
3192                         return;
3193                 }
3194         case QLCNIC_DEV_FAILED:
3195                 break;
3196         default:
3197                 qlcnic_schedule_work(adapter,
3198                         qlcnic_fwinit_work, FW_POLL_DELAY);
3199                 return;
3200         }
3201
3202 err_ret:
3203         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
3204                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
3205         netif_device_attach(adapter->netdev);
3206         qlcnic_clr_all_drv_state(adapter, 0);
3207 }
3208
3209 static void
3210 qlcnic_detach_work(struct work_struct *work)
3211 {
3212         struct qlcnic_adapter *adapter = container_of(work,
3213                         struct qlcnic_adapter, fw_work.work);
3214         struct net_device *netdev = adapter->netdev;
3215         u32 status;
3216
3217         netif_device_detach(netdev);
3218
3219         /* Dont grab rtnl lock during Quiscent mode */
3220         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3221                 if (netif_running(netdev))
3222                         __qlcnic_down(adapter, netdev);
3223         } else
3224                 qlcnic_down(adapter, netdev);
3225
3226         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3227
3228         if (status & QLCNIC_RCODE_FATAL_ERROR) {
3229                 dev_err(&adapter->pdev->dev,
3230                         "Detaching the device: peg halt status1=0x%x\n",
3231                                         status);
3232
3233                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
3234                         dev_err(&adapter->pdev->dev,
3235                         "On board active cooling fan failed. "
3236                                 "Device has been halted.\n");
3237                         dev_err(&adapter->pdev->dev,
3238                                 "Replace the adapter.\n");
3239                 }
3240
3241                 goto err_ret;
3242         }
3243
3244         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
3245                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
3246                         adapter->ahw->temp);
3247                 goto err_ret;
3248         }
3249
3250         /* Dont ack if this instance is the reset owner */
3251         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3252                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
3253                         dev_err(&adapter->pdev->dev,
3254                                 "Failed to set driver state,"
3255                                         "detaching the device.\n");
3256                         goto err_ret;
3257                 }
3258         }
3259
3260         adapter->fw_wait_cnt = 0;
3261
3262         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3263
3264         return;
3265
3266 err_ret:
3267         netif_device_attach(netdev);
3268         qlcnic_clr_all_drv_state(adapter, 1);
3269 }
3270
3271 /*Transit NPAR state to NON Operational */
3272 static void
3273 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3274 {
3275         u32 state;
3276
3277         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3278         if (state == QLCNIC_DEV_NPAR_NON_OPER)
3279                 return;
3280
3281         if (qlcnic_api_lock(adapter))
3282                 return;
3283         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3284                             QLCNIC_DEV_NPAR_NON_OPER);
3285         qlcnic_api_unlock(adapter);
3286 }
3287
3288 void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter, u32 key)
3289 {
3290         u32 state, xg_val = 0, gb_val = 0;
3291
3292         qlcnic_xg_set_xg0_mask(xg_val);
3293         qlcnic_xg_set_xg1_mask(xg_val);
3294         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3295         qlcnic_gb_set_gb0_mask(gb_val);
3296         qlcnic_gb_set_gb1_mask(gb_val);
3297         qlcnic_gb_set_gb2_mask(gb_val);
3298         qlcnic_gb_set_gb3_mask(gb_val);
3299         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3300         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3301                                 " on all ports\n");
3302         adapter->need_fw_reset = 1;
3303
3304         if (qlcnic_api_lock(adapter))
3305                 return;
3306
3307         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3308
3309         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
3310                 netdev_err(adapter->netdev, "%s: Device is in non-operational state\n",
3311                            __func__);
3312                 qlcnic_api_unlock(adapter);
3313
3314                 return;
3315         }
3316
3317         if (state == QLCNIC_DEV_READY) {
3318                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3319                                     QLCNIC_DEV_NEED_RESET);
3320                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3321                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3322                 qlcnic_idc_debug_info(adapter, 0);
3323         }
3324
3325         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3326                             QLCNIC_DEV_NPAR_NON_OPER);
3327         qlcnic_api_unlock(adapter);
3328 }
3329
3330 /* Transit to NPAR READY state from NPAR NOT READY state */
3331 static void
3332 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3333 {
3334         if (qlcnic_api_lock(adapter))
3335                 return;
3336
3337         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3338                             QLCNIC_DEV_NPAR_OPER);
3339         QLCDB(adapter, DRV, "NPAR operational state set\n");
3340
3341         qlcnic_api_unlock(adapter);
3342 }
3343
3344 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3345                           work_func_t func, int delay)
3346 {
3347         if (test_bit(__QLCNIC_AER, &adapter->state))
3348                 return;
3349
3350         INIT_DELAYED_WORK(&adapter->fw_work, func);
3351         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3352                            round_jiffies_relative(delay));
3353 }
3354
3355 static void
3356 qlcnic_attach_work(struct work_struct *work)
3357 {
3358         struct qlcnic_adapter *adapter = container_of(work,
3359                                 struct qlcnic_adapter, fw_work.work);
3360         struct net_device *netdev = adapter->netdev;
3361         u32 npar_state;
3362
3363         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3364                 npar_state = QLC_SHARED_REG_RD32(adapter,
3365                                                  QLCNIC_CRB_DEV_NPAR_STATE);
3366                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3367                         qlcnic_clr_all_drv_state(adapter, 0);
3368                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3369                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
3370                                                         FW_POLL_DELAY);
3371                 else
3372                         goto attach;
3373                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3374                 return;
3375         }
3376 attach:
3377         qlcnic_dcb_get_info(adapter->dcb);
3378
3379         if (netif_running(netdev)) {
3380                 if (qlcnic_up(adapter, netdev))
3381                         goto done;
3382
3383                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3384         }
3385
3386 done:
3387         netif_device_attach(netdev);
3388         adapter->fw_fail_cnt = 0;
3389         adapter->flags &= ~QLCNIC_FW_HANG;
3390         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3391         if (adapter->portnum == 0)
3392                 qlcnic_set_drv_version(adapter);
3393
3394         if (!qlcnic_clr_drv_state(adapter))
3395                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3396                                                         FW_POLL_DELAY);
3397 }
3398
3399 static int
3400 qlcnic_check_health(struct qlcnic_adapter *adapter)
3401 {
3402         struct qlcnic_hardware_context *ahw = adapter->ahw;
3403         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
3404         u32 state = 0, heartbeat;
3405         u32 peg_status;
3406         int err = 0;
3407
3408         if (qlcnic_check_temp(adapter))
3409                 goto detach;
3410
3411         if (adapter->need_fw_reset)
3412                 qlcnic_dev_request_reset(adapter, 0);
3413
3414         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3415         if (state == QLCNIC_DEV_NEED_RESET) {
3416                 qlcnic_set_npar_non_operational(adapter);
3417                 adapter->need_fw_reset = 1;
3418         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3419                 goto detach;
3420
3421         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3422         if (heartbeat != adapter->heartbeat) {
3423                 adapter->heartbeat = heartbeat;
3424                 adapter->fw_fail_cnt = 0;
3425                 if (adapter->need_fw_reset)
3426                         goto detach;
3427
3428                 if (ahw->reset_context && qlcnic_auto_fw_reset)
3429                         qlcnic_reset_hw_context(adapter);
3430
3431                 return 0;
3432         }
3433
3434         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3435                 return 0;
3436
3437         adapter->flags |= QLCNIC_FW_HANG;
3438
3439         qlcnic_dev_request_reset(adapter, 0);
3440
3441         if (qlcnic_auto_fw_reset)
3442                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3443
3444         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3445         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3446         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3447                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3448                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3449                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3450                         "PEG_NET_4_PC: 0x%x\n",
3451                         peg_status,
3452                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3453                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3454                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3455                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3456                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3457                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3458         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3459                 dev_err(&adapter->pdev->dev,
3460                         "Firmware aborted with error code 0x00006700. "
3461                                 "Device is being reset.\n");
3462 detach:
3463         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3464                 QLCNIC_DEV_NEED_RESET;
3465
3466         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3467                                                       &adapter->state)) {
3468
3469                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3470                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3471         } else if (!qlcnic_auto_fw_reset && fw_dump->enable &&
3472                    adapter->flags & QLCNIC_FW_RESET_OWNER) {
3473                 qlcnic_dump_fw(adapter);
3474         }
3475
3476         return 1;
3477 }
3478
3479 void qlcnic_fw_poll_work(struct work_struct *work)
3480 {
3481         struct qlcnic_adapter *adapter = container_of(work,
3482                                 struct qlcnic_adapter, fw_work.work);
3483
3484         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3485                 goto reschedule;
3486
3487
3488         if (qlcnic_check_health(adapter))
3489                 return;
3490
3491         if (adapter->fhash.fnum)
3492                 qlcnic_prune_lb_filters(adapter);
3493
3494 reschedule:
3495         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3496 }
3497
3498 static int qlcnic_is_first_func(struct pci_dev *pdev)
3499 {
3500         struct pci_dev *oth_pdev;
3501         int val = pdev->devfn;
3502
3503         while (val-- > 0) {
3504                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3505                         (pdev->bus), pdev->bus->number,
3506                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3507                 if (!oth_pdev)
3508                         continue;
3509
3510                 if (oth_pdev->current_state != PCI_D3cold) {
3511                         pci_dev_put(oth_pdev);
3512                         return 0;
3513                 }
3514                 pci_dev_put(oth_pdev);
3515         }
3516         return 1;
3517 }
3518
3519 static int qlcnic_attach_func(struct pci_dev *pdev)
3520 {
3521         int err, first_func;
3522         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3523         struct net_device *netdev = adapter->netdev;
3524
3525         pdev->error_state = pci_channel_io_normal;
3526
3527         err = pci_enable_device(pdev);
3528         if (err)
3529                 return err;
3530
3531         pci_set_master(pdev);
3532         pci_restore_state(pdev);
3533
3534         first_func = qlcnic_is_first_func(pdev);
3535
3536         if (qlcnic_api_lock(adapter))
3537                 return -EINVAL;
3538
3539         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3540                 adapter->need_fw_reset = 1;
3541                 set_bit(__QLCNIC_START_FW, &adapter->state);
3542                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3543                                     QLCNIC_DEV_INITIALIZING);
3544                 QLCDB(adapter, DRV, "Restarting fw\n");
3545         }
3546         qlcnic_api_unlock(adapter);
3547
3548         err = qlcnic_start_firmware(adapter);
3549         if (err)
3550                 return err;
3551
3552         qlcnic_clr_drv_state(adapter);
3553         kfree(adapter->msix_entries);
3554         adapter->msix_entries = NULL;
3555         err = qlcnic_setup_intr(adapter);
3556
3557         if (err) {
3558                 kfree(adapter->msix_entries);
3559                 netdev_err(netdev, "failed to setup interrupt\n");
3560                 return err;
3561         }
3562
3563         if (netif_running(netdev)) {
3564                 err = qlcnic_attach(adapter);
3565                 if (err) {
3566                         qlcnic_clr_all_drv_state(adapter, 1);
3567                         clear_bit(__QLCNIC_AER, &adapter->state);
3568                         netif_device_attach(netdev);
3569                         return err;
3570                 }
3571
3572                 err = qlcnic_up(adapter, netdev);
3573                 if (err)
3574                         goto done;
3575
3576                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3577         }
3578  done:
3579         netif_device_attach(netdev);
3580         return err;
3581 }
3582
3583 pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
3584                                                pci_channel_state_t state)
3585 {
3586         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3587         struct net_device *netdev = adapter->netdev;
3588
3589         if (state == pci_channel_io_perm_failure)
3590                 return PCI_ERS_RESULT_DISCONNECT;
3591
3592         if (state == pci_channel_io_normal)
3593                 return PCI_ERS_RESULT_RECOVERED;
3594
3595         set_bit(__QLCNIC_AER, &adapter->state);
3596         netif_device_detach(netdev);
3597
3598         cancel_delayed_work_sync(&adapter->fw_work);
3599
3600         if (netif_running(netdev))
3601                 qlcnic_down(adapter, netdev);
3602
3603         qlcnic_detach(adapter);
3604         qlcnic_teardown_intr(adapter);
3605
3606         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3607
3608         pci_save_state(pdev);
3609         pci_disable_device(pdev);
3610
3611         return PCI_ERS_RESULT_NEED_RESET;
3612 }
3613
3614 pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
3615 {
3616         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3617                                 PCI_ERS_RESULT_RECOVERED;
3618 }
3619
3620 void qlcnic_82xx_io_resume(struct pci_dev *pdev)
3621 {
3622         u32 state;
3623         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3624
3625         pci_cleanup_aer_uncorrect_error_status(pdev);
3626         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3627         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3628                                                             &adapter->state))
3629                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3630                                      FW_POLL_DELAY);
3631 }
3632
3633 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3634                                                  pci_channel_state_t state)
3635 {
3636         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3637         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3638
3639         if (hw_ops->io_error_detected) {
3640                 return hw_ops->io_error_detected(pdev, state);
3641         } else {
3642                 dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
3643                 return PCI_ERS_RESULT_DISCONNECT;
3644         }
3645 }
3646
3647 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3648 {
3649         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3650         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3651
3652         if (hw_ops->io_slot_reset) {
3653                 return hw_ops->io_slot_reset(pdev);
3654         } else {
3655                 dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
3656                 return PCI_ERS_RESULT_DISCONNECT;
3657         }
3658 }
3659
3660 static void qlcnic_io_resume(struct pci_dev *pdev)
3661 {
3662         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3663         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3664
3665         if (hw_ops->io_resume)
3666                 hw_ops->io_resume(pdev);
3667         else
3668                 dev_err(&pdev->dev, "AER resume handler not registered.\n");
3669 }
3670
3671
3672 static int
3673 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3674 {
3675         int err;
3676
3677         err = qlcnic_can_start_firmware(adapter);
3678         if (err)
3679                 return err;
3680
3681         err = qlcnic_check_npar_opertional(adapter);
3682         if (err)
3683                 return err;
3684
3685         err = qlcnic_initialize_nic(adapter);
3686         if (err)
3687                 return err;
3688
3689         qlcnic_check_options(adapter);
3690
3691         err = qlcnic_set_eswitch_port_config(adapter);
3692         if (err)
3693                 return err;
3694
3695         adapter->need_fw_reset = 0;
3696
3697         return err;
3698 }
3699
3700 int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt,
3701                           int queue_type)
3702 {
3703         struct net_device *netdev = adapter->netdev;
3704         u8 max_hw_rings = 0;
3705         char buf[8];
3706         int cur_rings;
3707
3708         if (queue_type == QLCNIC_RX_QUEUE) {
3709                 max_hw_rings = adapter->max_sds_rings;
3710                 cur_rings = adapter->drv_sds_rings;
3711                 strcpy(buf, "SDS");
3712         } else if (queue_type == QLCNIC_TX_QUEUE) {
3713                 max_hw_rings = adapter->max_tx_rings;
3714                 cur_rings = adapter->drv_tx_rings;
3715                 strcpy(buf, "Tx");
3716         }
3717
3718         if (!qlcnic_use_msi_x && !qlcnic_use_msi) {
3719                 netdev_err(netdev, "No RSS/TSS support in INT-x mode\n");
3720                 return -EINVAL;
3721         }
3722
3723         if (adapter->flags & QLCNIC_MSI_ENABLED) {
3724                 netdev_err(netdev, "No RSS/TSS support in MSI mode\n");
3725                 return -EINVAL;
3726         }
3727
3728         if (ring_cnt < 2) {
3729                 netdev_err(netdev,
3730                            "%s rings value should not be lower than 2\n", buf);
3731                 return -EINVAL;
3732         }
3733
3734         if (!is_power_of_2(ring_cnt)) {
3735                 netdev_err(netdev, "%s rings value should be a power of 2\n",
3736                            buf);
3737                 return -EINVAL;
3738         }
3739
3740         if (qlcnic_82xx_check(adapter) && (queue_type == QLCNIC_TX_QUEUE) &&
3741             !qlcnic_check_multi_tx(adapter)) {
3742                         netdev_err(netdev, "No Multi Tx queue support\n");
3743                         return -EINVAL;
3744         }
3745
3746         if (ring_cnt > num_online_cpus()) {
3747                 netdev_err(netdev,
3748                            "%s value[%u] should not be higher than, number of online CPUs\n",
3749                            buf, num_online_cpus());
3750                 return -EINVAL;
3751         }
3752
3753         return 0;
3754 }
3755
3756 int qlcnic_setup_rings(struct qlcnic_adapter *adapter, u8 rx_cnt, u8 tx_cnt)
3757 {
3758         struct net_device *netdev = adapter->netdev;
3759         int err;
3760
3761         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3762                 return -EBUSY;
3763
3764         netif_device_detach(netdev);
3765         if (netif_running(netdev))
3766                 __qlcnic_down(adapter, netdev);
3767
3768         qlcnic_detach(adapter);
3769
3770         if (qlcnic_83xx_check(adapter)) {
3771                 qlcnic_83xx_free_mbx_intr(adapter);
3772                 qlcnic_83xx_enable_mbx_poll(adapter);
3773         }
3774
3775         qlcnic_teardown_intr(adapter);
3776
3777         /* compute and set default and max tx/sds rings */
3778         qlcnic_set_tx_ring_count(adapter, tx_cnt);
3779         qlcnic_set_sds_ring_count(adapter, rx_cnt);
3780
3781         netif_set_real_num_tx_queues(netdev, adapter->drv_tx_rings);
3782
3783         err = qlcnic_setup_intr(adapter);
3784         if (err) {
3785                 kfree(adapter->msix_entries);
3786                 netdev_err(netdev, "failed to setup interrupt\n");
3787                 return err;
3788         }
3789
3790         if (qlcnic_83xx_check(adapter)) {
3791                 /* register for NIC IDC AEN Events */
3792                 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3793                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3794                 qlcnic_83xx_disable_mbx_poll(adapter);
3795                 if (err) {
3796                         dev_err(&adapter->pdev->dev,
3797                                 "failed to setup mbx interrupt\n");
3798                         goto done;
3799                 }
3800         }
3801
3802         if (netif_running(netdev)) {
3803                 err = qlcnic_attach(adapter);
3804                 if (err)
3805                         goto done;
3806                 err = __qlcnic_up(adapter, netdev);
3807                 if (err)
3808                         goto done;
3809                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3810         }
3811 done:
3812         netif_device_attach(netdev);
3813         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3814         return err;
3815 }
3816
3817 #ifdef CONFIG_INET
3818
3819 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
3820
3821 static void
3822 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
3823                         struct net_device *dev, unsigned long event)
3824 {
3825         struct in_device *indev;
3826
3827         indev = in_dev_get(dev);
3828         if (!indev)
3829                 return;
3830
3831         for_ifa(indev) {
3832                 switch (event) {
3833                 case NETDEV_UP:
3834                         qlcnic_config_ipaddr(adapter,
3835                                         ifa->ifa_address, QLCNIC_IP_UP);
3836                         break;
3837                 case NETDEV_DOWN:
3838                         qlcnic_config_ipaddr(adapter,
3839                                         ifa->ifa_address, QLCNIC_IP_DOWN);
3840                         break;
3841                 default:
3842                         break;
3843                 }
3844         } endfor_ifa(indev);
3845
3846         in_dev_put(indev);
3847 }
3848
3849 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
3850 {
3851         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3852         struct net_device *dev;
3853         u16 vid;
3854
3855         qlcnic_config_indev_addr(adapter, netdev, event);
3856
3857         rcu_read_lock();
3858         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
3859                 dev = __vlan_find_dev_deep(netdev, htons(ETH_P_8021Q), vid);
3860                 if (!dev)
3861                         continue;
3862                 qlcnic_config_indev_addr(adapter, dev, event);
3863         }
3864         rcu_read_unlock();
3865 }
3866
3867 static int qlcnic_netdev_event(struct notifier_block *this,
3868                                  unsigned long event, void *ptr)
3869 {
3870         struct qlcnic_adapter *adapter;
3871         struct net_device *dev = netdev_notifier_info_to_dev(ptr);
3872
3873 recheck:
3874         if (dev == NULL)
3875                 goto done;
3876
3877         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3878                 dev = vlan_dev_real_dev(dev);
3879                 goto recheck;
3880         }
3881
3882         if (!is_qlcnic_netdev(dev))
3883                 goto done;
3884
3885         adapter = netdev_priv(dev);
3886
3887         if (!adapter)
3888                 goto done;
3889
3890         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3891                 goto done;
3892
3893         qlcnic_config_indev_addr(adapter, dev, event);
3894 done:
3895         return NOTIFY_DONE;
3896 }
3897
3898 static int
3899 qlcnic_inetaddr_event(struct notifier_block *this,
3900                 unsigned long event, void *ptr)
3901 {
3902         struct qlcnic_adapter *adapter;
3903         struct net_device *dev;
3904
3905         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3906
3907         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3908
3909 recheck:
3910         if (dev == NULL)
3911                 goto done;
3912
3913         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3914                 dev = vlan_dev_real_dev(dev);
3915                 goto recheck;
3916         }
3917
3918         if (!is_qlcnic_netdev(dev))
3919                 goto done;
3920
3921         adapter = netdev_priv(dev);
3922
3923         if (!adapter)
3924                 goto done;
3925
3926         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3927                 goto done;
3928
3929         switch (event) {
3930         case NETDEV_UP:
3931                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
3932
3933                 break;
3934         case NETDEV_DOWN:
3935                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
3936
3937                 break;
3938         default:
3939                 break;
3940         }
3941
3942 done:
3943         return NOTIFY_DONE;
3944 }
3945
3946 static struct notifier_block    qlcnic_netdev_cb = {
3947         .notifier_call = qlcnic_netdev_event,
3948 };
3949
3950 static struct notifier_block qlcnic_inetaddr_cb = {
3951         .notifier_call = qlcnic_inetaddr_event,
3952 };
3953 #else
3954 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
3955 { }
3956 #endif
3957 static const struct pci_error_handlers qlcnic_err_handler = {
3958         .error_detected = qlcnic_io_error_detected,
3959         .slot_reset = qlcnic_io_slot_reset,
3960         .resume = qlcnic_io_resume,
3961 };
3962
3963 static struct pci_driver qlcnic_driver = {
3964         .name = qlcnic_driver_name,
3965         .id_table = qlcnic_pci_tbl,
3966         .probe = qlcnic_probe,
3967         .remove = qlcnic_remove,
3968 #ifdef CONFIG_PM
3969         .suspend = qlcnic_suspend,
3970         .resume = qlcnic_resume,
3971 #endif
3972         .shutdown = qlcnic_shutdown,
3973         .err_handler = &qlcnic_err_handler,
3974 #ifdef CONFIG_QLCNIC_SRIOV
3975         .sriov_configure = qlcnic_pci_sriov_configure,
3976 #endif
3977
3978 };
3979
3980 static int __init qlcnic_init_module(void)
3981 {
3982         int ret;
3983
3984         printk(KERN_INFO "%s\n", qlcnic_driver_string);
3985
3986 #ifdef CONFIG_INET
3987         register_netdevice_notifier(&qlcnic_netdev_cb);
3988         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
3989 #endif
3990
3991         ret = pci_register_driver(&qlcnic_driver);
3992         if (ret) {
3993 #ifdef CONFIG_INET
3994                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3995                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3996 #endif
3997         }
3998
3999         return ret;
4000 }
4001
4002 module_init(qlcnic_init_module);
4003
4004 static void __exit qlcnic_exit_module(void)
4005 {
4006         pci_unregister_driver(&qlcnic_driver);
4007
4008 #ifdef CONFIG_INET
4009         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4010         unregister_netdevice_notifier(&qlcnic_netdev_cb);
4011 #endif
4012 }
4013
4014 module_exit(qlcnic_exit_module);