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