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