Pileus Git - ~andy/linux/blob - 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_vlan_list *cur;
 312         struct list_head *head;
 313
 314         list_for_each(head, &adapter->mac_list) {
 315                 cur = list_entry(head, struct qlcnic_mac_vlan_list, list);
 316                 if (ether_addr_equal_unaligned(adapter->mac_addr, cur->mac_addr)) {
 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 (ether_addr_equal_unaligned(adapter->mac_addr, addr->sa_data))
 341                 return 0;
 342
 343         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 344                 netif_device_detach(netdev);
 345                 qlcnic_napi_disable(adapter);
 346         }
 347
 348         qlcnic_delete_adapter_mac(adapter);
 349         memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
 350         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 351         qlcnic_set_multi(adapter->netdev);
 352
 353         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 354                 netif_device_attach(netdev);
 355                 qlcnic_napi_enable(adapter);
 356         }
 357         return 0;
 358 }
 359
 360 static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
 361                         struct net_device *netdev, const unsigned char *addr)
 362 {
 363         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 364         int err = -EOPNOTSUPP;
 365
 366         if (!adapter->fdb_mac_learn)
 367                 return ndo_dflt_fdb_del(ndm, tb, netdev, addr);
 368
 369         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 370                 if (is_unicast_ether_addr(addr)) {
 371                         err = dev_uc_del(netdev, addr);
 372                         if (!err)
 373                                 err = qlcnic_nic_del_mac(adapter, addr);
 374                 } else if (is_multicast_ether_addr(addr)) {
 375                         err = dev_mc_del(netdev, addr);
 376                 } else {
 377                         err =  -EINVAL;
 378                 }
 379         }
 380         return err;
 381 }
 382
 383 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 384                         struct net_device *netdev,
 385                         const unsigned char *addr, u16 flags)
 386 {
 387         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 388         int err = 0;
 389
 390         if (!adapter->fdb_mac_learn)
 391                 return ndo_dflt_fdb_add(ndm, tb, netdev, addr, flags);
 392
 393         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 394                 pr_info("%s: FDB e-switch is not enabled\n", __func__);
 395                 return -EOPNOTSUPP;
 396         }
 397
 398         if (ether_addr_equal(addr, adapter->mac_addr))
 399                 return err;
 400
 401         if (is_unicast_ether_addr(addr)) {
 402                 if (netdev_uc_count(netdev) < adapter->ahw->max_uc_count)
 403                         err = dev_uc_add_excl(netdev, addr);
 404                 else
 405                         err = -ENOMEM;
 406         } else if (is_multicast_ether_addr(addr)) {
 407                 err = dev_mc_add_excl(netdev, addr);
 408         } else {
 409                 err = -EINVAL;
 410         }
 411
 412         return err;
 413 }
 414
 415 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
 416                         struct net_device *netdev, int idx)
 417 {
 418         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 419
 420         if (!adapter->fdb_mac_learn)
 421                 return ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
 422
 423         if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
 424                 idx = ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
 425
 426         return idx;
 427 }
 428
 429 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
 430 {
 431         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
 432                 usleep_range(10000, 11000);
 433
 434         if (!adapter->fw_work.work.func)
 435                 return;
 436
 437         cancel_delayed_work_sync(&adapter->fw_work);
 438 }
 439
 440 static int qlcnic_get_phys_port_id(struct net_device *netdev,
 441                                    struct netdev_phys_port_id *ppid)
 442 {
 443         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 444         struct qlcnic_hardware_context *ahw = adapter->ahw;
 445
 446         if (!(adapter->flags & QLCNIC_HAS_PHYS_PORT_ID))
 447                 return -EOPNOTSUPP;
 448
 449         ppid->id_len = sizeof(ahw->phys_port_id);
 450         memcpy(ppid->id, ahw->phys_port_id, ppid->id_len);
 451
 452         return 0;
 453 }
 454
 455 static const struct net_device_ops qlcnic_netdev_ops = {
 456         .ndo_open          = qlcnic_open,
 457         .ndo_stop          = qlcnic_close,
 458         .ndo_start_xmit    = qlcnic_xmit_frame,
 459         .ndo_get_stats     = qlcnic_get_stats,
 460         .ndo_validate_addr = eth_validate_addr,
 461         .ndo_set_rx_mode   = qlcnic_set_multi,
 462         .ndo_set_mac_address    = qlcnic_set_mac,
 463         .ndo_change_mtu    = qlcnic_change_mtu,
 464         .ndo_fix_features  = qlcnic_fix_features,
 465         .ndo_set_features  = qlcnic_set_features,
 466         .ndo_tx_timeout    = qlcnic_tx_timeout,
 467         .ndo_vlan_rx_add_vid    = qlcnic_vlan_rx_add,
 468         .ndo_vlan_rx_kill_vid   = qlcnic_vlan_rx_del,
 469         .ndo_fdb_add            = qlcnic_fdb_add,
 470         .ndo_fdb_del            = qlcnic_fdb_del,
 471         .ndo_fdb_dump           = qlcnic_fdb_dump,
 472         .ndo_get_phys_port_id   = qlcnic_get_phys_port_id,
 473 #ifdef CONFIG_NET_POLL_CONTROLLER
 474         .ndo_poll_controller = qlcnic_poll_controller,
 475 #endif
 476 #ifdef CONFIG_QLCNIC_SRIOV
 477         .ndo_set_vf_mac         = qlcnic_sriov_set_vf_mac,
 478         .ndo_set_vf_tx_rate     = qlcnic_sriov_set_vf_tx_rate,
 479         .ndo_get_vf_config      = qlcnic_sriov_get_vf_config,
 480         .ndo_set_vf_vlan        = qlcnic_sriov_set_vf_vlan,
 481         .ndo_set_vf_spoofchk    = qlcnic_sriov_set_vf_spoofchk,
 482 #endif
 483 };
 484
 485 static const struct net_device_ops qlcnic_netdev_failed_ops = {
 486         .ndo_open          = qlcnic_open,
 487 };
 488
 489 static struct qlcnic_nic_template qlcnic_ops = {
 490         .config_bridged_mode    = qlcnic_config_bridged_mode,
 491         .config_led             = qlcnic_82xx_config_led,
 492         .start_firmware         = qlcnic_82xx_start_firmware,
 493         .request_reset          = qlcnic_82xx_dev_request_reset,
 494         .cancel_idc_work        = qlcnic_82xx_cancel_idc_work,
 495         .napi_add               = qlcnic_82xx_napi_add,
 496         .napi_del               = qlcnic_82xx_napi_del,
 497         .config_ipaddr          = qlcnic_82xx_config_ipaddr,
 498         .shutdown               = qlcnic_82xx_shutdown,
 499         .resume                 = qlcnic_82xx_resume,
 500         .clear_legacy_intr      = qlcnic_82xx_clear_legacy_intr,
 501 };
 502
 503 struct qlcnic_nic_template qlcnic_vf_ops = {
 504         .config_bridged_mode    = qlcnicvf_config_bridged_mode,
 505         .config_led             = qlcnicvf_config_led,
 506         .start_firmware         = qlcnicvf_start_firmware
 507 };
 508
 509 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
 510         .read_crb                       = qlcnic_82xx_read_crb,
 511         .write_crb                      = qlcnic_82xx_write_crb,
 512         .read_reg                       = qlcnic_82xx_hw_read_wx_2M,
 513         .write_reg                      = qlcnic_82xx_hw_write_wx_2M,
 514         .get_mac_address                = qlcnic_82xx_get_mac_address,
 515         .setup_intr                     = qlcnic_82xx_setup_intr,
 516         .alloc_mbx_args                 = qlcnic_82xx_alloc_mbx_args,
 517         .mbx_cmd                        = qlcnic_82xx_issue_cmd,
 518         .get_func_no                    = qlcnic_82xx_get_func_no,
 519         .api_lock                       = qlcnic_82xx_api_lock,
 520         .api_unlock                     = qlcnic_82xx_api_unlock,
 521         .add_sysfs                      = qlcnic_82xx_add_sysfs,
 522         .remove_sysfs                   = qlcnic_82xx_remove_sysfs,
 523         .process_lb_rcv_ring_diag       = qlcnic_82xx_process_rcv_ring_diag,
 524         .create_rx_ctx                  = qlcnic_82xx_fw_cmd_create_rx_ctx,
 525         .create_tx_ctx                  = qlcnic_82xx_fw_cmd_create_tx_ctx,
 526         .del_rx_ctx                     = qlcnic_82xx_fw_cmd_del_rx_ctx,
 527         .del_tx_ctx                     = qlcnic_82xx_fw_cmd_del_tx_ctx,
 528         .setup_link_event               = qlcnic_82xx_linkevent_request,
 529         .get_nic_info                   = qlcnic_82xx_get_nic_info,
 530         .get_pci_info                   = qlcnic_82xx_get_pci_info,
 531         .set_nic_info                   = qlcnic_82xx_set_nic_info,
 532         .change_macvlan                 = qlcnic_82xx_sre_macaddr_change,
 533         .napi_enable                    = qlcnic_82xx_napi_enable,
 534         .napi_disable                   = qlcnic_82xx_napi_disable,
 535         .config_intr_coal               = qlcnic_82xx_config_intr_coalesce,
 536         .config_rss                     = qlcnic_82xx_config_rss,
 537         .config_hw_lro                  = qlcnic_82xx_config_hw_lro,
 538         .config_loopback                = qlcnic_82xx_set_lb_mode,
 539         .clear_loopback                 = qlcnic_82xx_clear_lb_mode,
 540         .config_promisc_mode            = qlcnic_82xx_nic_set_promisc,
 541         .change_l2_filter               = qlcnic_82xx_change_filter,
 542         .get_board_info                 = qlcnic_82xx_get_board_info,
 543         .set_mac_filter_count           = qlcnic_82xx_set_mac_filter_count,
 544         .free_mac_list                  = qlcnic_82xx_free_mac_list,
 545         .read_phys_port_id              = qlcnic_82xx_read_phys_port_id,
 546         .io_error_detected              = qlcnic_82xx_io_error_detected,
 547         .io_slot_reset                  = qlcnic_82xx_io_slot_reset,
 548         .io_resume                      = qlcnic_82xx_io_resume,
 549         .get_beacon_state               = qlcnic_82xx_get_beacon_state,
 550 };
 551
 552 static int qlcnic_check_multi_tx_capability(struct qlcnic_adapter *adapter)
 553 {
 554         struct qlcnic_hardware_context *ahw = adapter->ahw;
 555
 556         if (qlcnic_82xx_check(adapter) &&
 557             (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_MULTI_TX)) {
 558                 test_and_set_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
 559                 return 0;
 560         } else {
 561                 return 1;
 562         }
 563 }
 564
 565 static int qlcnic_max_rings(struct qlcnic_adapter *adapter, u8 ring_cnt,
 566                             int queue_type)
 567 {
 568         int num_rings, max_rings = QLCNIC_MAX_SDS_RINGS;
 569
 570         if (queue_type == QLCNIC_RX_QUEUE)
 571                 max_rings = adapter->max_sds_rings;
 572         else if (queue_type == QLCNIC_TX_QUEUE)
 573                 max_rings = adapter->max_tx_rings;
 574
 575         num_rings = rounddown_pow_of_two(min_t(int, num_online_cpus(),
 576                                               max_rings));
 577
 578         if (ring_cnt > num_rings)
 579                 return num_rings;
 580         else
 581                 return ring_cnt;
 582 }
 583
 584 void qlcnic_set_tx_ring_count(struct qlcnic_adapter *adapter, u8 tx_cnt)
 585 {
 586         /* 83xx adapter does not have max_tx_rings intialized in probe */
 587         if (adapter->max_tx_rings)
 588                 adapter->drv_tx_rings = qlcnic_max_rings(adapter, tx_cnt,
 589                                                          QLCNIC_TX_QUEUE);
 590         else
 591                 adapter->drv_tx_rings = tx_cnt;
 592
 593         dev_info(&adapter->pdev->dev, "Set %d Tx rings\n",
 594                  adapter->drv_tx_rings);
 595 }
 596
 597 void qlcnic_set_sds_ring_count(struct qlcnic_adapter *adapter, u8 rx_cnt)
 598 {
 599         /* 83xx adapter does not have max_sds_rings intialized in probe */
 600         if (adapter->max_sds_rings)
 601                 adapter->drv_sds_rings = qlcnic_max_rings(adapter, rx_cnt,
 602                                                           QLCNIC_RX_QUEUE);
 603         else
 604                 adapter->drv_sds_rings = rx_cnt;
 605
 606         dev_info(&adapter->pdev->dev, "Set %d SDS rings\n",
 607                  adapter->drv_sds_rings);
 608 }
 609
 610 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 611 {
 612         struct pci_dev *pdev = adapter->pdev;
 613         int drv_tx_rings, drv_sds_rings, tx_vector;
 614         int err = -1, i;
 615
 616         if (adapter->flags & QLCNIC_TX_INTR_SHARED) {
 617                 drv_tx_rings = 0;
 618                 tx_vector = 0;
 619         } else {
 620                 drv_tx_rings = adapter->drv_tx_rings;
 621                 tx_vector = 1;
 622         }
 623
 624         if (!adapter->msix_entries) {
 625                 adapter->msix_entries = kcalloc(num_msix,
 626                                                 sizeof(struct msix_entry),
 627                                                 GFP_KERNEL);
 628                 if (!adapter->msix_entries)
 629                         return -ENOMEM;
 630         }
 631
 632         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
 633         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 634
 635         if (adapter->ahw->msix_supported) {
 636  enable_msix:
 637                 for (i = 0; i < num_msix; i++)
 638                         adapter->msix_entries[i].entry = i;
 639                 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
 640                 if (err == 0) {
 641                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 642                         if (qlcnic_83xx_check(adapter)) {
 643                                 adapter->ahw->num_msix = num_msix;
 644                                 /* subtract mail box and tx ring vectors */
 645                                 adapter->drv_sds_rings = num_msix -
 646                                                          drv_tx_rings - 1;
 647                         } else {
 648                                 adapter->ahw->num_msix = num_msix;
 649                                 if (qlcnic_check_multi_tx(adapter) &&
 650                                     !adapter->ahw->diag_test)
 651                                         drv_sds_rings = num_msix - drv_tx_rings;
 652                                 else
 653                                         drv_sds_rings = num_msix;
 654
 655                                 adapter->drv_sds_rings = drv_sds_rings;
 656                         }
 657                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 658                         return err;
 659                 } else if (err > 0) {
 660                         dev_info(&pdev->dev,
 661                                  "Unable to allocate %d MSI-X interrupt vectors\n",
 662                                  num_msix);
 663                         if (qlcnic_83xx_check(adapter)) {
 664                                 if (err < (QLC_83XX_MINIMUM_VECTOR - tx_vector))
 665                                         return err;
 666                                 err -= drv_tx_rings + 1;
 667                                 num_msix = rounddown_pow_of_two(err);
 668                                 num_msix += drv_tx_rings + 1;
 669                         } else {
 670                                 num_msix = rounddown_pow_of_two(err);
 671                                 if (qlcnic_check_multi_tx(adapter))
 672                                         num_msix += drv_tx_rings;
 673                         }
 674
 675                         if (num_msix) {
 676                                 dev_info(&pdev->dev,
 677                                          "Trying to allocate %d MSI-X interrupt vectors\n",
 678                                          num_msix);
 679                                 goto enable_msix;
 680                         }
 681                 } else {
 682                         dev_info(&pdev->dev,
 683                                  "Unable to allocate %d MSI-X interrupt vectors\n",
 684                                  num_msix);
 685                 }
 686         }
 687
 688         return err;
 689 }
 690
 691 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
 692 {
 693         int err = 0;
 694         u32 offset, mask_reg;
 695         const struct qlcnic_legacy_intr_set *legacy_intrp;
 696         struct qlcnic_hardware_context *ahw = adapter->ahw;
 697         struct pci_dev *pdev = adapter->pdev;
 698
 699         if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
 700                 adapter->flags |= QLCNIC_MSI_ENABLED;
 701                 offset = msi_tgt_status[adapter->ahw->pci_func];
 702                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
 703                                                             offset);
 704                 dev_info(&pdev->dev, "using msi interrupts\n");
 705                 adapter->msix_entries[0].vector = pdev->irq;
 706                 return err;
 707         }
 708
 709         if (qlcnic_use_msi || qlcnic_use_msi_x)
 710                 return -EOPNOTSUPP;
 711
 712         legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
 713         adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
 714         offset = legacy_intrp->tgt_status_reg;
 715         adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
 716         mask_reg = legacy_intrp->tgt_mask_reg;
 717         adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
 718         adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
 719         adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
 720         dev_info(&pdev->dev, "using legacy interrupts\n");
 721         adapter->msix_entries[0].vector = pdev->irq;
 722         return err;
 723 }
 724
 725 int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter)
 726 {
 727         int num_msix, err = 0;
 728
 729         num_msix = adapter->drv_sds_rings;
 730
 731         if (qlcnic_check_multi_tx(adapter))
 732                 num_msix += adapter->drv_tx_rings;
 733
 734         err = qlcnic_enable_msix(adapter, num_msix);
 735         if (err == -ENOMEM)
 736                 return err;
 737
 738         if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
 739                 qlcnic_disable_multi_tx(adapter);
 740
 741                 err = qlcnic_enable_msi_legacy(adapter);
 742                 if (!err)
 743                         return err;
 744         }
 745
 746         return 0;
 747 }
 748
 749 int qlcnic_82xx_mq_intrpt(struct qlcnic_adapter *adapter, int op_type)
 750 {
 751         struct qlcnic_hardware_context *ahw = adapter->ahw;
 752         int err, i;
 753
 754         if (qlcnic_check_multi_tx(adapter) &&
 755             !ahw->diag_test &&
 756             (adapter->flags & QLCNIC_MSIX_ENABLED)) {
 757                 ahw->intr_tbl = vzalloc(ahw->num_msix *
 758                                         sizeof(struct qlcnic_intrpt_config));
 759                 if (!ahw->intr_tbl)
 760                         return -ENOMEM;
 761
 762                 for (i = 0; i < ahw->num_msix; i++) {
 763                         ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
 764                         ahw->intr_tbl[i].id = i;
 765                         ahw->intr_tbl[i].src = 0;
 766                 }
 767
 768                 err = qlcnic_82xx_config_intrpt(adapter, 1);
 769                 if (err)
 770                         dev_err(&adapter->pdev->dev,
 771                                 "Failed to configure Interrupt for %d vector\n",
 772                                 ahw->num_msix);
 773                 return err;
 774         }
 775
 776         return 0;
 777 }
 778
 779 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 780 {
 781         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 782                 pci_disable_msix(adapter->pdev);
 783         if (adapter->flags & QLCNIC_MSI_ENABLED)
 784                 pci_disable_msi(adapter->pdev);
 785
 786         kfree(adapter->msix_entries);
 787         adapter->msix_entries = NULL;
 788
 789         if (adapter->ahw->intr_tbl) {
 790                 vfree(adapter->ahw->intr_tbl);
 791                 adapter->ahw->intr_tbl = NULL;
 792         }
 793 }
 794
 795 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
 796 {
 797         if (ahw->pci_base0 != NULL)
 798                 iounmap(ahw->pci_base0);
 799 }
 800
 801 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
 802 {
 803         struct qlcnic_hardware_context *ahw = adapter->ahw;
 804         struct qlcnic_pci_info *pci_info;
 805         int ret;
 806
 807         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 808                 switch (ahw->port_type) {
 809                 case QLCNIC_GBE:
 810                         ahw->total_nic_func = QLCNIC_NIU_MAX_GBE_PORTS;
 811                         break;
 812                 case QLCNIC_XGBE:
 813                         ahw->total_nic_func = QLCNIC_NIU_MAX_XG_PORTS;
 814                         break;
 815                 }
 816                 return 0;
 817         }
 818
 819         if (ahw->op_mode == QLCNIC_MGMT_FUNC)
 820                 return 0;
 821
 822         pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
 823         if (!pci_info)
 824                 return -ENOMEM;
 825
 826         ret = qlcnic_get_pci_info(adapter, pci_info);
 827         kfree(pci_info);
 828         return ret;
 829 }
 830
 831 static bool qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter *adapter)
 832 {
 833         bool ret = false;
 834
 835         if (qlcnic_84xx_check(adapter)) {
 836                 ret = true;
 837         } else if (qlcnic_83xx_check(adapter)) {
 838                 if (adapter->ahw->extra_capability[0] &
 839                     QLCNIC_FW_CAPABILITY_2_PER_PORT_ESWITCH_CFG)
 840                         ret = true;
 841                 else
 842                         ret = false;
 843         }
 844
 845         return ret;
 846 }
 847
 848 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 849 {
 850         struct qlcnic_hardware_context *ahw = adapter->ahw;
 851         struct qlcnic_pci_info *pci_info;
 852         int i, id = 0, ret = 0, j = 0;
 853         u16 act_pci_func;
 854         u8 pfn;
 855
 856         pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
 857         if (!pci_info)
 858                 return -ENOMEM;
 859
 860         ret = qlcnic_get_pci_info(adapter, pci_info);
 861         if (ret)
 862                 goto err_pci_info;
 863
 864         act_pci_func = ahw->total_nic_func;
 865
 866         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
 867                                  act_pci_func, GFP_KERNEL);
 868         if (!adapter->npars) {
 869                 ret = -ENOMEM;
 870                 goto err_pci_info;
 871         }
 872
 873         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
 874                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
 875         if (!adapter->eswitch) {
 876                 ret = -ENOMEM;
 877                 goto err_npars;
 878         }
 879
 880         for (i = 0; i < ahw->max_vnic_func; i++) {
 881                 pfn = pci_info[i].id;
 882
 883                 if (pfn >= ahw->max_vnic_func) {
 884                         ret = QL_STATUS_INVALID_PARAM;
 885                         goto err_eswitch;
 886                 }
 887
 888                 if (!pci_info[i].active ||
 889                     (pci_info[i].type != QLCNIC_TYPE_NIC))
 890                         continue;
 891
 892                 if (qlcnic_port_eswitch_cfg_capability(adapter)) {
 893                         if (!qlcnic_83xx_set_port_eswitch_status(adapter, pfn,
 894                                                                  &id))
 895                                 adapter->npars[j].eswitch_status = true;
 896                         else
 897                                 continue;
 898                 } else {
 899                         adapter->npars[j].eswitch_status = true;
 900                 }
 901
 902                 adapter->npars[j].pci_func = pfn;
 903                 adapter->npars[j].active = (u8)pci_info[i].active;
 904                 adapter->npars[j].type = (u8)pci_info[i].type;
 905                 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
 906                 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
 907                 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
 908
 909                 memcpy(&adapter->npars[j].mac, &pci_info[i].mac, ETH_ALEN);
 910                 j++;
 911         }
 912
 913         /* Update eSwitch status for adapters without per port eSwitch
 914          * configuration capability
 915          */
 916         if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
 917                 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
 918                         adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
 919         }
 920
 921         kfree(pci_info);
 922         return 0;
 923
 924 err_eswitch:
 925         kfree(adapter->eswitch);
 926         adapter->eswitch = NULL;
 927 err_npars:
 928         kfree(adapter->npars);
 929         adapter->npars = NULL;
 930 err_pci_info:
 931         kfree(pci_info);
 932
 933         return ret;
 934 }
 935
 936 static int
 937 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
 938 {
 939         u8 id;
 940         int ret;
 941         u32 data = QLCNIC_MGMT_FUNC;
 942         struct qlcnic_hardware_context *ahw = adapter->ahw;
 943
 944         ret = qlcnic_api_lock(adapter);
 945         if (ret)
 946                 goto err_lock;
 947
 948         id = ahw->pci_func;
 949         data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 950         data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
 951                QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
 952         QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
 953         qlcnic_api_unlock(adapter);
 954 err_lock:
 955         return ret;
 956 }
 957
 958 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
 959                             const struct pci_device_id *ent)
 960 {
 961         u32 op_mode, priv_level;
 962
 963         /* Determine FW API version */
 964         adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
 965                                                            QLCNIC_FW_API);
 966
 967         /* Find PCI function number */
 968         qlcnic_get_func_no(adapter);
 969
 970         /* Determine function privilege level */
 971         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 972         if (op_mode == QLC_DEV_DRV_DEFAULT)
 973                 priv_level = QLCNIC_MGMT_FUNC;
 974         else
 975                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
 976
 977         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
 978                 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
 979                 dev_info(&adapter->pdev->dev,
 980                         "HAL Version: %d Non Privileged function\n",
 981                          adapter->ahw->fw_hal_version);
 982                 adapter->nic_ops = &qlcnic_vf_ops;
 983         } else
 984                 adapter->nic_ops = &qlcnic_ops;
 985 }
 986
 987 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
 988 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
 989 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
 990 {
 991         switch (dev_id) {
 992         case PCI_DEVICE_ID_QLOGIC_QLE824X:
 993                 *bar = QLCNIC_82XX_BAR0_LENGTH;
 994                 break;
 995         case PCI_DEVICE_ID_QLOGIC_QLE834X:
 996         case PCI_DEVICE_ID_QLOGIC_QLE844X:
 997         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
 998         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
 999                 *bar = QLCNIC_83XX_BAR0_LENGTH;
1000                 break;
1001         default:
1002                 *bar = 0;
1003         }
1004 }
1005
1006 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
1007                                 struct qlcnic_hardware_context *ahw)
1008 {
1009         u32 offset;
1010         void __iomem *mem_ptr0 = NULL;
1011         unsigned long mem_len, pci_len0 = 0, bar0_len;
1012
1013         /* remap phys address */
1014         mem_len = pci_resource_len(pdev, 0);
1015
1016         qlcnic_get_bar_length(pdev->device, &bar0_len);
1017         if (mem_len >= bar0_len) {
1018
1019                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
1020                 if (mem_ptr0 == NULL) {
1021                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
1022                         return -EIO;
1023                 }
1024                 pci_len0 = mem_len;
1025         } else {
1026                 return -EIO;
1027         }
1028
1029         dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
1030
1031         ahw->pci_base0 = mem_ptr0;
1032         ahw->pci_len0 = pci_len0;
1033         offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
1034         qlcnic_get_ioaddr(ahw, offset);
1035
1036         return 0;
1037 }
1038
1039 static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
1040                                          int index)
1041 {
1042         struct pci_dev *pdev = adapter->pdev;
1043         unsigned short subsystem_vendor;
1044         bool ret = true;
1045
1046         subsystem_vendor = pdev->subsystem_vendor;
1047
1048         if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
1049             pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1050                 if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
1051                     qlcnic_boards[index].sub_device == pdev->subsystem_device)
1052                         ret = true;
1053                 else
1054                         ret = false;
1055         }
1056
1057         return ret;
1058 }
1059
1060 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
1061 {
1062         struct pci_dev *pdev = adapter->pdev;
1063         int i, found = 0;
1064
1065         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1066                 if (qlcnic_boards[i].vendor == pdev->vendor &&
1067                     qlcnic_boards[i].device == pdev->device &&
1068                     qlcnic_validate_subsystem_id(adapter, i)) {
1069                         found = 1;
1070                         break;
1071                 }
1072         }
1073
1074         if (!found)
1075                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
1076         else
1077                 sprintf(name, "%pM: %s" , adapter->mac_addr,
1078                         qlcnic_boards[i].short_name);
1079 }
1080
1081 static void
1082 qlcnic_check_options(struct qlcnic_adapter *adapter)
1083 {
1084         int err;
1085         u32 fw_major, fw_minor, fw_build, prev_fw_version;
1086         struct pci_dev *pdev = adapter->pdev;
1087         struct qlcnic_hardware_context *ahw = adapter->ahw;
1088         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
1089
1090         prev_fw_version = adapter->fw_version;
1091
1092         fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
1093         fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
1094         fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
1095
1096         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
1097
1098         err = qlcnic_get_board_info(adapter);
1099         if (err) {
1100                 dev_err(&pdev->dev, "Error getting board config info.\n");
1101                 return;
1102         }
1103         if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
1104                 if (fw_dump->tmpl_hdr == NULL ||
1105                                 adapter->fw_version > prev_fw_version) {
1106                         if (fw_dump->tmpl_hdr)
1107                                 vfree(fw_dump->tmpl_hdr);
1108                         if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1109                                 dev_info(&pdev->dev,
1110                                         "Supports FW dump capability\n");
1111                 }
1112         }
1113
1114         dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
1115                  QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
1116
1117         if (adapter->ahw->port_type == QLCNIC_XGBE) {
1118                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1119                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
1120                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
1121                 } else {
1122                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
1123                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
1124                 }
1125
1126                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1127                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1128
1129         } else if (adapter->ahw->port_type == QLCNIC_GBE) {
1130                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
1131                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1132                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1133                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
1134         }
1135
1136         adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
1137
1138         adapter->num_txd = MAX_CMD_DESCRIPTORS;
1139
1140         adapter->max_rds_rings = MAX_RDS_RINGS;
1141 }
1142
1143 static int
1144 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
1145 {
1146         struct qlcnic_info nic_info;
1147         int err = 0;
1148
1149         memset(&nic_info, 0, sizeof(struct qlcnic_info));
1150         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
1151         if (err)
1152                 return err;
1153
1154         adapter->ahw->physical_port = (u8)nic_info.phys_port;
1155         adapter->ahw->switch_mode = nic_info.switch_mode;
1156         adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
1157         adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
1158         adapter->ahw->capabilities = nic_info.capabilities;
1159
1160         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1161                 u32 temp;
1162                 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
1163                 if (err == -EIO)
1164                         return err;
1165                 adapter->ahw->extra_capability[0] = temp;
1166         } else {
1167                 adapter->ahw->extra_capability[0] = 0;
1168         }
1169
1170         adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1171         adapter->ahw->max_mtu = nic_info.max_mtu;
1172
1173         if (adapter->ahw->capabilities & BIT_6) {
1174                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1175                 adapter->ahw->nic_mode = QLCNIC_VNIC_MODE;
1176                 adapter->max_tx_rings = QLCNIC_MAX_HW_VNIC_TX_RINGS;
1177                 adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
1178
1179                 dev_info(&adapter->pdev->dev, "vNIC mode enabled.\n");
1180         } else {
1181                 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1182                 adapter->max_tx_rings = QLCNIC_MAX_HW_TX_RINGS;
1183                 adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
1184                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1185         }
1186
1187         return err;
1188 }
1189
1190 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1191                             struct qlcnic_esw_func_cfg *esw_cfg)
1192 {
1193         if (esw_cfg->discard_tagged)
1194                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1195         else
1196                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1197
1198         if (esw_cfg->vlan_id) {
1199                 adapter->rx_pvid = esw_cfg->vlan_id;
1200                 adapter->tx_pvid = esw_cfg->vlan_id;
1201         } else {
1202                 adapter->rx_pvid = 0;
1203                 adapter->tx_pvid = 0;
1204         }
1205 }
1206
1207 static int
1208 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1209 {
1210         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1211         int err;
1212
1213         if (qlcnic_sriov_vf_check(adapter)) {
1214                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1215                 if (err) {
1216                         netdev_err(netdev,
1217                                    "Cannot add VLAN filter for VLAN id %d, err=%d",
1218                                    vid, err);
1219                         return err;
1220                 }
1221         }
1222
1223         set_bit(vid, adapter->vlans);
1224         return 0;
1225 }
1226
1227 static int
1228 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1229 {
1230         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1231         int err;
1232
1233         if (qlcnic_sriov_vf_check(adapter)) {
1234                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1235                 if (err) {
1236                         netdev_err(netdev,
1237                                    "Cannot delete VLAN filter for VLAN id %d, err=%d",
1238                                    vid, err);
1239                         return err;
1240                 }
1241         }
1242
1243         qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1244         clear_bit(vid, adapter->vlans);
1245         return 0;
1246 }
1247
1248 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1249                                       struct qlcnic_esw_func_cfg *esw_cfg)
1250 {
1251         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1252                                 QLCNIC_PROMISC_DISABLED);
1253
1254         if (esw_cfg->mac_anti_spoof)
1255                 adapter->flags |= QLCNIC_MACSPOOF;
1256
1257         if (!esw_cfg->mac_override)
1258                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1259
1260         if (!esw_cfg->promisc_mode)
1261                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1262 }
1263
1264 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1265 {
1266         struct qlcnic_esw_func_cfg esw_cfg;
1267
1268         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1269                 return 0;
1270
1271         esw_cfg.pci_func = adapter->ahw->pci_func;
1272         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1273                         return -EIO;
1274         qlcnic_set_vlan_config(adapter, &esw_cfg);
1275         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1276         qlcnic_set_netdev_features(adapter, &esw_cfg);
1277
1278         return 0;
1279 }
1280
1281 void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1282                                 struct qlcnic_esw_func_cfg *esw_cfg)
1283 {
1284         struct net_device *netdev = adapter->netdev;
1285
1286         if (qlcnic_83xx_check(adapter))
1287                 return;
1288
1289         adapter->offload_flags = esw_cfg->offload_flags;
1290         adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1291         netdev_update_features(netdev);
1292         adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1293 }
1294
1295 static int
1296 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1297 {
1298         u32 op_mode, priv_level;
1299         int err = 0;
1300
1301         err = qlcnic_initialize_nic(adapter);
1302         if (err)
1303                 return err;
1304
1305         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1306                 return 0;
1307
1308         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1309         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1310
1311         if (op_mode == QLC_DEV_DRV_DEFAULT)
1312                 priv_level = QLCNIC_MGMT_FUNC;
1313         else
1314                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1315
1316         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1317                 if (priv_level == QLCNIC_MGMT_FUNC) {
1318                         adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1319                         err = qlcnic_init_pci_info(adapter);
1320                         if (err)
1321                                 return err;
1322                         /* Set privilege level for other functions */
1323                         qlcnic_set_function_modes(adapter);
1324                         dev_info(&adapter->pdev->dev,
1325                                 "HAL Version: %d, Management function\n",
1326                                  adapter->ahw->fw_hal_version);
1327                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1328                         adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1329                         dev_info(&adapter->pdev->dev,
1330                                 "HAL Version: %d, Privileged function\n",
1331                                  adapter->ahw->fw_hal_version);
1332                 }
1333         } else {
1334                 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1335         }
1336
1337         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1338
1339         return err;
1340 }
1341
1342 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1343 {
1344         struct qlcnic_esw_func_cfg esw_cfg;
1345         struct qlcnic_npar_info *npar;
1346         u8 i;
1347
1348         if (adapter->need_fw_reset)
1349                 return 0;
1350
1351         for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1352                 if (!adapter->npars[i].eswitch_status)
1353                         continue;
1354
1355                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1356                 esw_cfg.pci_func = adapter->npars[i].pci_func;
1357                 esw_cfg.mac_override = BIT_0;
1358                 esw_cfg.promisc_mode = BIT_0;
1359                 if (qlcnic_82xx_check(adapter)) {
1360                         esw_cfg.offload_flags = BIT_0;
1361                         if (QLCNIC_IS_TSO_CAPABLE(adapter))
1362                                 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1363                 }
1364                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1365                         return -EIO;
1366                 npar = &adapter->npars[i];
1367                 npar->pvid = esw_cfg.vlan_id;
1368                 npar->mac_override = esw_cfg.mac_override;
1369                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1370                 npar->discard_tagged = esw_cfg.discard_tagged;
1371                 npar->promisc_mode = esw_cfg.promisc_mode;
1372                 npar->offload_flags = esw_cfg.offload_flags;
1373         }
1374
1375         return 0;
1376 }
1377
1378
1379 static int
1380 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1381                         struct qlcnic_npar_info *npar, int pci_func)
1382 {
1383         struct qlcnic_esw_func_cfg esw_cfg;
1384         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1385         esw_cfg.pci_func = pci_func;
1386         esw_cfg.vlan_id = npar->pvid;
1387         esw_cfg.mac_override = npar->mac_override;
1388         esw_cfg.discard_tagged = npar->discard_tagged;
1389         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1390         esw_cfg.offload_flags = npar->offload_flags;
1391         esw_cfg.promisc_mode = npar->promisc_mode;
1392         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1393                 return -EIO;
1394
1395         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1396         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1397                 return -EIO;
1398
1399         return 0;
1400 }
1401
1402 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1403 {
1404         int i, err;
1405         struct qlcnic_npar_info *npar;
1406         struct qlcnic_info nic_info;
1407         u8 pci_func;
1408
1409         if (qlcnic_82xx_check(adapter))
1410                 if (!adapter->need_fw_reset)
1411                         return 0;
1412
1413         /* Set the NPAR config data after FW reset */
1414         for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1415                 npar = &adapter->npars[i];
1416                 pci_func = npar->pci_func;
1417                 if (!adapter->npars[i].eswitch_status)
1418                         continue;
1419
1420                 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1421                 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1422                 if (err)
1423                         return err;
1424                 nic_info.min_tx_bw = npar->min_bw;
1425                 nic_info.max_tx_bw = npar->max_bw;
1426                 err = qlcnic_set_nic_info(adapter, &nic_info);
1427                 if (err)
1428                         return err;
1429
1430                 if (npar->enable_pm) {
1431                         err = qlcnic_config_port_mirroring(adapter,
1432                                                            npar->dest_npar, 1,
1433                                                            pci_func);
1434                         if (err)
1435                                 return err;
1436                 }
1437                 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1438                 if (err)
1439                         return err;
1440         }
1441         return 0;
1442 }
1443
1444 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1445 {
1446         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1447         u32 npar_state;
1448
1449         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1450                 return 0;
1451
1452         npar_state = QLC_SHARED_REG_RD32(adapter,
1453                                          QLCNIC_CRB_DEV_NPAR_STATE);
1454         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1455                 msleep(1000);
1456                 npar_state = QLC_SHARED_REG_RD32(adapter,
1457                                                  QLCNIC_CRB_DEV_NPAR_STATE);
1458         }
1459         if (!npar_opt_timeo) {
1460                 dev_err(&adapter->pdev->dev,
1461                         "Waiting for NPAR state to operational timeout\n");
1462                 return -EIO;
1463         }
1464         return 0;
1465 }
1466
1467 static int
1468 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1469 {
1470         int err;
1471
1472         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1473             adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1474                 return 0;
1475
1476         err = qlcnic_set_default_offload_settings(adapter);
1477         if (err)
1478                 return err;
1479
1480         err = qlcnic_reset_npar_config(adapter);
1481         if (err)
1482                 return err;
1483
1484         qlcnic_dev_set_npar_ready(adapter);
1485
1486         return err;
1487 }
1488
1489 int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1490 {
1491         int err;
1492
1493         err = qlcnic_can_start_firmware(adapter);
1494         if (err < 0)
1495                 return err;
1496         else if (!err)
1497                 goto check_fw_status;
1498
1499         if (qlcnic_load_fw_file)
1500                 qlcnic_request_firmware(adapter);
1501         else {
1502                 err = qlcnic_check_flash_fw_ver(adapter);
1503                 if (err)
1504                         goto err_out;
1505
1506                 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1507         }
1508
1509         err = qlcnic_need_fw_reset(adapter);
1510         if (err == 0)
1511                 goto check_fw_status;
1512
1513         err = qlcnic_pinit_from_rom(adapter);
1514         if (err)
1515                 goto err_out;
1516
1517         err = qlcnic_load_firmware(adapter);
1518         if (err)
1519                 goto err_out;
1520
1521         qlcnic_release_firmware(adapter);
1522         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1523
1524 check_fw_status:
1525         err = qlcnic_check_fw_status(adapter);
1526         if (err)
1527                 goto err_out;
1528
1529         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1530         qlcnic_idc_debug_info(adapter, 1);
1531         err = qlcnic_check_eswitch_mode(adapter);
1532         if (err) {
1533                 dev_err(&adapter->pdev->dev,
1534                         "Memory allocation failed for eswitch\n");
1535                 goto err_out;
1536         }
1537         err = qlcnic_set_mgmt_operations(adapter);
1538         if (err)
1539                 goto err_out;
1540
1541         qlcnic_check_options(adapter);
1542         adapter->need_fw_reset = 0;
1543
1544         qlcnic_release_firmware(adapter);
1545         return 0;
1546
1547 err_out:
1548         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1549         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1550
1551         qlcnic_release_firmware(adapter);
1552         return err;
1553 }
1554
1555 static int
1556 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1557 {
1558         irq_handler_t handler;
1559         struct qlcnic_host_sds_ring *sds_ring;
1560         struct qlcnic_host_tx_ring *tx_ring;
1561         int err, ring, num_sds_rings;
1562
1563         unsigned long flags = 0;
1564         struct net_device *netdev = adapter->netdev;
1565         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1566
1567         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1568                 if (qlcnic_82xx_check(adapter))
1569                         handler = qlcnic_tmp_intr;
1570                 else
1571                         handler = qlcnic_83xx_tmp_intr;
1572                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1573                         flags |= IRQF_SHARED;
1574
1575         } else {
1576                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1577                         handler = qlcnic_msix_intr;
1578                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1579                         handler = qlcnic_msi_intr;
1580                 else {
1581                         flags |= IRQF_SHARED;
1582                         if (qlcnic_82xx_check(adapter))
1583                                 handler = qlcnic_intr;
1584                         else
1585                                 handler = qlcnic_83xx_intr;
1586                 }
1587         }
1588         adapter->irq = netdev->irq;
1589
1590         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1591                 if (qlcnic_82xx_check(adapter) ||
1592                     (qlcnic_83xx_check(adapter) &&
1593                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1594                         num_sds_rings = adapter->drv_sds_rings;
1595                         for (ring = 0; ring < num_sds_rings; ring++) {
1596                                 sds_ring = &recv_ctx->sds_rings[ring];
1597                                 if (qlcnic_82xx_check(adapter) &&
1598                                     !qlcnic_check_multi_tx(adapter) &&
1599                                     (ring == (num_sds_rings - 1))) {
1600                                         if (!(adapter->flags &
1601                                               QLCNIC_MSIX_ENABLED))
1602                                                 snprintf(sds_ring->name,
1603                                                          sizeof(sds_ring->name),
1604                                                          "qlcnic");
1605                                         else
1606                                                 snprintf(sds_ring->name,
1607                                                          sizeof(sds_ring->name),
1608                                                          "%s-tx-0-rx-%d",
1609                                                          netdev->name, ring);
1610                                 } else {
1611                                         snprintf(sds_ring->name,
1612                                                  sizeof(sds_ring->name),
1613                                                  "%s-rx-%d",
1614                                                  netdev->name, ring);
1615                                 }
1616                                 err = request_irq(sds_ring->irq, handler, flags,
1617                                                   sds_ring->name, sds_ring);
1618                                 if (err)
1619                                         return err;
1620                         }
1621                 }
1622                 if ((qlcnic_82xx_check(adapter) &&
1623                      qlcnic_check_multi_tx(adapter)) ||
1624                     (qlcnic_83xx_check(adapter) &&
1625                      (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1626                      !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
1627                         handler = qlcnic_msix_tx_intr;
1628                         for (ring = 0; ring < adapter->drv_tx_rings;
1629                              ring++) {
1630                                 tx_ring = &adapter->tx_ring[ring];
1631                                 snprintf(tx_ring->name, sizeof(tx_ring->name),
1632                                          "%s-tx-%d", netdev->name, ring);
1633                                 err = request_irq(tx_ring->irq, handler, flags,
1634                                                   tx_ring->name, tx_ring);
1635                                 if (err)
1636                                         return err;
1637                         }
1638                 }
1639         }
1640         return 0;
1641 }
1642
1643 static void
1644 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1645 {
1646         int ring;
1647         struct qlcnic_host_sds_ring *sds_ring;
1648         struct qlcnic_host_tx_ring *tx_ring;
1649
1650         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1651
1652         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1653                 if (qlcnic_82xx_check(adapter) ||
1654                     (qlcnic_83xx_check(adapter) &&
1655                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1656                         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1657                                 sds_ring = &recv_ctx->sds_rings[ring];
1658                                 free_irq(sds_ring->irq, sds_ring);
1659                         }
1660                 }
1661                 if ((qlcnic_83xx_check(adapter) &&
1662                      !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
1663                     (qlcnic_82xx_check(adapter) &&
1664                      qlcnic_check_multi_tx(adapter))) {
1665                         for (ring = 0; ring < adapter->drv_tx_rings;
1666                              ring++) {
1667                                 tx_ring = &adapter->tx_ring[ring];
1668                                 if (tx_ring->irq)
1669                                         free_irq(tx_ring->irq, tx_ring);
1670                         }
1671                 }
1672         }
1673 }
1674
1675 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1676 {
1677         u32 capab = 0;
1678
1679         if (qlcnic_82xx_check(adapter)) {
1680                 if (adapter->ahw->extra_capability[0] &
1681                     QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1682                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1683         } else {
1684                 capab = adapter->ahw->capabilities;
1685                 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1686                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1687         }
1688 }
1689
1690 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1691 {
1692         int ring;
1693         struct qlcnic_host_rds_ring *rds_ring;
1694
1695         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1696                 return -EIO;
1697
1698         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1699                 return 0;
1700
1701         if (qlcnic_set_eswitch_port_config(adapter))
1702                 return -EIO;
1703
1704         qlcnic_get_lro_mss_capability(adapter);
1705
1706         if (qlcnic_fw_create_ctx(adapter))
1707                 return -EIO;
1708
1709         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1710                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1711                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1712         }
1713
1714         qlcnic_set_multi(netdev);
1715         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1716
1717         adapter->ahw->linkup = 0;
1718
1719         if (adapter->drv_sds_rings > 1)
1720                 qlcnic_config_rss(adapter, 1);
1721
1722         qlcnic_config_intr_coalesce(adapter);
1723
1724         if (netdev->features & NETIF_F_LRO)
1725                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1726
1727         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1728         qlcnic_napi_enable(adapter);
1729
1730         qlcnic_linkevent_request(adapter, 1);
1731
1732         adapter->ahw->reset_context = 0;
1733         return 0;
1734 }
1735
1736 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1737 {
1738         int err = 0;
1739
1740         rtnl_lock();
1741         if (netif_running(netdev))
1742                 err = __qlcnic_up(adapter, netdev);
1743         rtnl_unlock();
1744
1745         return err;
1746 }
1747
1748 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1749 {
1750         int ring;
1751
1752         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1753                 return;
1754
1755         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1756                 return;
1757
1758         if (qlcnic_sriov_vf_check(adapter))
1759                 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1760         smp_mb();
1761         netif_carrier_off(netdev);
1762         adapter->ahw->linkup = 0;
1763         netif_tx_disable(netdev);
1764
1765         qlcnic_free_mac_list(adapter);
1766
1767         if (adapter->fhash.fnum)
1768                 qlcnic_delete_lb_filters(adapter);
1769
1770         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1771
1772         qlcnic_napi_disable(adapter);
1773
1774         qlcnic_fw_destroy_ctx(adapter);
1775         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1776
1777         qlcnic_reset_rx_buffers_list(adapter);
1778
1779         for (ring = 0; ring < adapter->drv_tx_rings; ring++)
1780                 qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
1781 }
1782
1783 /* Usage: During suspend and firmware recovery module */
1784
1785 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1786 {
1787         rtnl_lock();
1788         if (netif_running(netdev))
1789                 __qlcnic_down(adapter, netdev);
1790         rtnl_unlock();
1791
1792 }
1793
1794 int
1795 qlcnic_attach(struct qlcnic_adapter *adapter)
1796 {
1797         struct net_device *netdev = adapter->netdev;
1798         struct pci_dev *pdev = adapter->pdev;
1799         int err;
1800
1801         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1802                 return 0;
1803
1804         err = qlcnic_napi_add(adapter, netdev);
1805         if (err)
1806                 return err;
1807
1808         err = qlcnic_alloc_sw_resources(adapter);
1809         if (err) {
1810                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1811                 goto err_out_napi_del;
1812         }
1813
1814         err = qlcnic_alloc_hw_resources(adapter);
1815         if (err) {
1816                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1817                 goto err_out_free_sw;
1818         }
1819
1820         err = qlcnic_request_irq(adapter);
1821         if (err) {
1822                 dev_err(&pdev->dev, "failed to setup interrupt\n");
1823                 goto err_out_free_hw;
1824         }
1825
1826         qlcnic_create_sysfs_entries(adapter);
1827
1828         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1829         return 0;
1830
1831 err_out_free_hw:
1832         qlcnic_free_hw_resources(adapter);
1833 err_out_free_sw:
1834         qlcnic_free_sw_resources(adapter);
1835 err_out_napi_del:
1836         qlcnic_napi_del(adapter);
1837         return err;
1838 }
1839
1840 void qlcnic_detach(struct qlcnic_adapter *adapter)
1841 {
1842         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1843                 return;
1844
1845         qlcnic_remove_sysfs_entries(adapter);
1846
1847         qlcnic_free_hw_resources(adapter);
1848         qlcnic_release_rx_buffers(adapter);
1849         qlcnic_free_irq(adapter);
1850         qlcnic_napi_del(adapter);
1851         qlcnic_free_sw_resources(adapter);
1852
1853         adapter->is_up = 0;
1854 }
1855
1856 void qlcnic_diag_free_res(struct net_device *netdev, int drv_sds_rings)
1857 {
1858         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1859         struct qlcnic_host_sds_ring *sds_ring;
1860         int drv_tx_rings = adapter->drv_tx_rings;
1861         int ring;
1862
1863         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1864         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1865                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1866                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1867                         qlcnic_disable_int(sds_ring);
1868                 }
1869         }
1870
1871         qlcnic_fw_destroy_ctx(adapter);
1872
1873         qlcnic_detach(adapter);
1874
1875         adapter->ahw->diag_test = 0;
1876         adapter->drv_sds_rings = drv_sds_rings;
1877         adapter->drv_tx_rings = drv_tx_rings;
1878
1879         if (qlcnic_attach(adapter))
1880                 goto out;
1881
1882         if (netif_running(netdev))
1883                 __qlcnic_up(adapter, netdev);
1884 out:
1885         netif_device_attach(netdev);
1886 }
1887
1888 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
1889 {
1890         struct qlcnic_hardware_context *ahw = adapter->ahw;
1891         int err = 0;
1892
1893         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
1894                                 GFP_KERNEL);
1895         if (!adapter->recv_ctx) {
1896                 err = -ENOMEM;
1897                 goto err_out;
1898         }
1899         /* Initialize interrupt coalesce parameters */
1900         ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1901         ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1902         ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1903         ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1904         if (qlcnic_83xx_check(adapter)) {
1905                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1906                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1907         }
1908         /* clear stats */
1909         memset(&adapter->stats, 0, sizeof(adapter->stats));
1910 err_out:
1911         return err;
1912 }
1913
1914 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
1915 {
1916         kfree(adapter->recv_ctx);
1917         adapter->recv_ctx = NULL;
1918
1919         if (adapter->ahw->fw_dump.tmpl_hdr) {
1920                 vfree(adapter->ahw->fw_dump.tmpl_hdr);
1921                 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1922         }
1923
1924         kfree(adapter->ahw->reset.buff);
1925         adapter->ahw->fw_dump.tmpl_hdr = NULL;
1926 }
1927
1928 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1929 {
1930         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1931         struct qlcnic_host_sds_ring *sds_ring;
1932         struct qlcnic_host_rds_ring *rds_ring;
1933         int ring;
1934         int ret;
1935
1936         netif_device_detach(netdev);
1937
1938         if (netif_running(netdev))
1939                 __qlcnic_down(adapter, netdev);
1940
1941         qlcnic_detach(adapter);
1942
1943         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
1944         adapter->ahw->diag_test = test;
1945         adapter->ahw->linkup = 0;
1946
1947         ret = qlcnic_attach(adapter);
1948         if (ret) {
1949                 netif_device_attach(netdev);
1950                 return ret;
1951         }
1952
1953         ret = qlcnic_fw_create_ctx(adapter);
1954         if (ret) {
1955                 qlcnic_detach(adapter);
1956                 netif_device_attach(netdev);
1957                 return ret;
1958         }
1959
1960         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1961                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1962                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1963         }
1964
1965         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1966                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1967                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1968                         qlcnic_enable_int(sds_ring);
1969                 }
1970         }
1971
1972         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
1973                 adapter->ahw->loopback_state = 0;
1974                 qlcnic_linkevent_request(adapter, 1);
1975         }
1976
1977         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1978
1979         return 0;
1980 }
1981
1982 /* Reset context in hardware only */
1983 static int
1984 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1985 {
1986         struct net_device *netdev = adapter->netdev;
1987
1988         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1989                 return -EBUSY;
1990
1991         netif_device_detach(netdev);
1992
1993         qlcnic_down(adapter, netdev);
1994
1995         qlcnic_up(adapter, netdev);
1996
1997         netif_device_attach(netdev);
1998
1999         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2000         dev_err(&adapter->pdev->dev, "%s:\n", __func__);
2001         return 0;
2002 }
2003
2004 int
2005 qlcnic_reset_context(struct qlcnic_adapter *adapter)
2006 {
2007         int err = 0;
2008         struct net_device *netdev = adapter->netdev;
2009
2010         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2011                 return -EBUSY;
2012
2013         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
2014
2015                 netif_device_detach(netdev);
2016
2017                 if (netif_running(netdev))
2018                         __qlcnic_down(adapter, netdev);
2019
2020                 qlcnic_detach(adapter);
2021
2022                 if (netif_running(netdev)) {
2023                         err = qlcnic_attach(adapter);
2024                         if (!err) {
2025                                 __qlcnic_up(adapter, netdev);
2026                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2027                         }
2028                 }
2029
2030                 netif_device_attach(netdev);
2031         }
2032
2033         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2034         return err;
2035 }
2036
2037 void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
2038 {
2039         struct qlcnic_hardware_context *ahw = adapter->ahw;
2040         u16 act_pci_fn = ahw->total_nic_func;
2041         u16 count;
2042
2043         ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
2044         if (act_pci_fn <= 2)
2045                 count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
2046                          act_pci_fn;
2047         else
2048                 count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
2049                          act_pci_fn;
2050         ahw->max_uc_count = count;
2051 }
2052
2053 int
2054 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
2055                     int pci_using_dac)
2056 {
2057         int err;
2058         struct pci_dev *pdev = adapter->pdev;
2059
2060         adapter->rx_csum = 1;
2061         adapter->ahw->mc_enabled = 0;
2062         qlcnic_set_mac_filter_count(adapter);
2063
2064         netdev->netdev_ops         = &qlcnic_netdev_ops;
2065         netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
2066
2067         qlcnic_change_mtu(netdev, netdev->mtu);
2068
2069         if (qlcnic_sriov_vf_check(adapter))
2070                 SET_ETHTOOL_OPS(netdev, &qlcnic_sriov_vf_ethtool_ops);
2071         else
2072                 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
2073
2074         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2075                              NETIF_F_IPV6_CSUM | NETIF_F_GRO |
2076                              NETIF_F_HW_VLAN_CTAG_RX);
2077         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
2078                                   NETIF_F_IPV6_CSUM);
2079
2080         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
2081                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
2082                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
2083         }
2084
2085         if (pci_using_dac) {
2086                 netdev->features |= NETIF_F_HIGHDMA;
2087                 netdev->vlan_features |= NETIF_F_HIGHDMA;
2088         }
2089
2090         if (qlcnic_vlan_tx_check(adapter))
2091                 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
2092
2093         if (qlcnic_sriov_vf_check(adapter))
2094                 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2095
2096         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
2097                 netdev->features |= NETIF_F_LRO;
2098
2099         netdev->hw_features = netdev->features;
2100         netdev->priv_flags |= IFF_UNICAST_FLT;
2101         netdev->irq = adapter->msix_entries[0].vector;
2102
2103         err = qlcnic_set_real_num_queues(adapter, netdev);
2104         if (err)
2105                 return err;
2106
2107         err = register_netdev(netdev);
2108         if (err) {
2109                 dev_err(&pdev->dev, "failed to register net device\n");
2110                 return err;
2111         }
2112
2113         qlcnic_dcb_init_dcbnl_ops(adapter->dcb);
2114
2115         return 0;
2116 }
2117
2118 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
2119 {
2120         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
2121                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
2122                 *pci_using_dac = 1;
2123         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
2124                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
2125                 *pci_using_dac = 0;
2126         else {
2127                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
2128                 return -EIO;
2129         }
2130
2131         return 0;
2132 }
2133
2134 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
2135 {
2136         int ring;
2137         struct qlcnic_host_tx_ring *tx_ring;
2138
2139         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2140                 tx_ring = &adapter->tx_ring[ring];
2141                 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
2142                         vfree(tx_ring->cmd_buf_arr);
2143                         tx_ring->cmd_buf_arr = NULL;
2144                 }
2145         }
2146         if (adapter->tx_ring != NULL)
2147                 kfree(adapter->tx_ring);
2148 }
2149
2150 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
2151                           struct net_device *netdev)
2152 {
2153         int ring, vector, index;
2154         struct qlcnic_host_tx_ring *tx_ring;
2155         struct qlcnic_cmd_buffer *cmd_buf_arr;
2156
2157         tx_ring = kcalloc(adapter->drv_tx_rings,
2158                           sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
2159         if (tx_ring == NULL)
2160                 return -ENOMEM;
2161
2162         adapter->tx_ring = tx_ring;
2163
2164         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2165                 tx_ring = &adapter->tx_ring[ring];
2166                 tx_ring->num_desc = adapter->num_txd;
2167                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
2168                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
2169                 if (cmd_buf_arr == NULL) {
2170                         qlcnic_free_tx_rings(adapter);
2171                         return -ENOMEM;
2172                 }
2173                 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
2174                 tx_ring->cmd_buf_arr = cmd_buf_arr;
2175                 spin_lock_init(&tx_ring->tx_clean_lock);
2176         }
2177
2178         if (qlcnic_83xx_check(adapter) ||
2179             (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
2180                 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2181                         tx_ring = &adapter->tx_ring[ring];
2182                         tx_ring->adapter = adapter;
2183                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
2184                                 index = adapter->drv_sds_rings + ring;
2185                                 vector = adapter->msix_entries[index].vector;
2186                                 tx_ring->irq = vector;
2187                         }
2188                 }
2189         }
2190
2191         return 0;
2192 }
2193
2194 void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
2195 {
2196         struct qlcnic_hardware_context *ahw = adapter->ahw;
2197         u32 fw_cmd = 0;
2198
2199         if (qlcnic_82xx_check(adapter))
2200                 fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
2201         else if (qlcnic_83xx_check(adapter))
2202                 fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
2203
2204         if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER)
2205                 qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
2206 }
2207
2208 static int
2209 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2210 {
2211         struct net_device *netdev = NULL;
2212         struct qlcnic_adapter *adapter = NULL;
2213         struct qlcnic_hardware_context *ahw;
2214         int err, pci_using_dac = -1;
2215         char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
2216
2217         if (pdev->is_virtfn)
2218                 return -ENODEV;
2219
2220         err = pci_enable_device(pdev);
2221         if (err)
2222                 return err;
2223
2224         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2225                 err = -ENODEV;
2226                 goto err_out_disable_pdev;
2227         }
2228
2229         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
2230         if (err)
2231                 goto err_out_disable_pdev;
2232
2233         err = pci_request_regions(pdev, qlcnic_driver_name);
2234         if (err)
2235                 goto err_out_disable_pdev;
2236
2237         pci_set_master(pdev);
2238         pci_enable_pcie_error_reporting(pdev);
2239
2240         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2241         if (!ahw) {
2242                 err = -ENOMEM;
2243                 goto err_out_free_res;
2244         }
2245
2246         switch (ent->device) {
2247         case PCI_DEVICE_ID_QLOGIC_QLE824X:
2248                 ahw->hw_ops = &qlcnic_hw_ops;
2249                 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2250                 break;
2251         case PCI_DEVICE_ID_QLOGIC_QLE834X:
2252         case PCI_DEVICE_ID_QLOGIC_QLE844X:
2253                 qlcnic_83xx_register_map(ahw);
2254                 break;
2255         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2256         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2257                 qlcnic_sriov_vf_register_map(ahw);
2258                 break;
2259         default:
2260                 goto err_out_free_hw_res;
2261         }
2262
2263         err = qlcnic_setup_pci_map(pdev, ahw);
2264         if (err)
2265                 goto err_out_free_hw_res;
2266
2267         netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
2268                                    QLCNIC_MAX_TX_RINGS);
2269         if (!netdev) {
2270                 err = -ENOMEM;
2271                 goto err_out_iounmap;
2272         }
2273
2274         SET_NETDEV_DEV(netdev, &pdev->dev);
2275
2276         adapter = netdev_priv(netdev);
2277         adapter->netdev  = netdev;
2278         adapter->pdev    = pdev;
2279         adapter->ahw = ahw;
2280
2281         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2282         if (adapter->qlcnic_wq == NULL) {
2283                 err = -ENOMEM;
2284                 dev_err(&pdev->dev, "Failed to create workqueue\n");
2285                 goto err_out_free_netdev;
2286         }
2287
2288         err = qlcnic_alloc_adapter_resources(adapter);
2289         if (err)
2290                 goto err_out_free_wq;
2291
2292         adapter->dev_rst_time = jiffies;
2293         ahw->revision_id = pdev->revision;
2294         ahw->max_vnic_func = qlcnic_get_vnic_func_count(adapter);
2295         if (qlcnic_mac_learn == FDB_MAC_LEARN)
2296                 adapter->fdb_mac_learn = true;
2297         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2298                 adapter->drv_mac_learn = true;
2299
2300         rwlock_init(&adapter->ahw->crb_lock);
2301         mutex_init(&adapter->ahw->mem_lock);
2302
2303         INIT_LIST_HEAD(&adapter->mac_list);
2304
2305         qlcnic_register_dcb(adapter);
2306
2307         if (qlcnic_82xx_check(adapter)) {
2308                 qlcnic_check_vf(adapter, ent);
2309                 adapter->portnum = adapter->ahw->pci_func;
2310                 err = qlcnic_start_firmware(adapter);
2311                 if (err) {
2312                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
2313                                 "\t\tIf reboot doesn't help, try flashing the card\n");
2314                         goto err_out_maintenance_mode;
2315                 }
2316
2317                 /* compute and set default and max tx/sds rings */
2318                 if (adapter->ahw->msix_supported) {
2319                         if (qlcnic_check_multi_tx_capability(adapter) == 1)
2320                                 qlcnic_set_tx_ring_count(adapter,
2321                                                          QLCNIC_SINGLE_RING);
2322                         else
2323                                 qlcnic_set_tx_ring_count(adapter,
2324                                                          QLCNIC_DEF_TX_RINGS);
2325                         qlcnic_set_sds_ring_count(adapter,
2326                                                   QLCNIC_DEF_SDS_RINGS);
2327                 } else {
2328                         qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
2329                         qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
2330                 }
2331
2332                 err = qlcnic_setup_idc_param(adapter);
2333                 if (err)
2334                         goto err_out_free_hw;
2335
2336                 adapter->flags |= QLCNIC_NEED_FLR;
2337
2338         } else if (qlcnic_83xx_check(adapter)) {
2339                 qlcnic_83xx_check_vf(adapter, ent);
2340                 adapter->portnum = adapter->ahw->pci_func;
2341                 err = qlcnic_83xx_init(adapter, pci_using_dac);
2342                 if (err) {
2343                         switch (err) {
2344                         case -ENOTRECOVERABLE:
2345                                 dev_err(&pdev->dev, "Adapter initialization failed due to a faulty hardware. Please reboot\n");
2346                                 dev_err(&pdev->dev, "If reboot doesn't help, please replace the adapter with new one and return the faulty adapter for repair\n");
2347                                 goto err_out_free_hw;
2348                         case -ENOMEM:
2349                                 dev_err(&pdev->dev, "Adapter initialization failed. Please reboot\n");
2350                                 goto err_out_free_hw;
2351                         default:
2352                                 dev_err(&pdev->dev, "Adapter initialization failed. A reboot may be required to recover from this failure\n");
2353                                 dev_err(&pdev->dev, "If reboot does not help to recover from this failure, try a flash update of the adapter\n");
2354                                 goto err_out_maintenance_mode;
2355                         }
2356                 }
2357
2358                 if (qlcnic_sriov_vf_check(adapter))
2359                         return 0;
2360         } else {
2361                 dev_err(&pdev->dev,
2362                         "%s: failed. Please Reboot\n", __func__);
2363                 goto err_out_free_hw;
2364         }
2365
2366         qlcnic_dcb_enable(adapter->dcb);
2367
2368         if (qlcnic_read_mac_addr(adapter))
2369                 dev_warn(&pdev->dev, "failed to read mac addr\n");
2370
2371         qlcnic_read_phys_port_id(adapter);
2372
2373         if (adapter->portnum == 0) {
2374                 qlcnic_get_board_name(adapter, board_name);
2375
2376                 pr_info("%s: %s Board Chip rev 0x%x\n",
2377                         module_name(THIS_MODULE),
2378                         board_name, adapter->ahw->revision_id);
2379         }
2380
2381         if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2382             !!qlcnic_use_msi)
2383                 dev_warn(&pdev->dev,
2384                          "Device does not support MSI interrupts\n");
2385
2386         if (qlcnic_82xx_check(adapter)) {
2387                 err = qlcnic_setup_intr(adapter);
2388                 if (err) {
2389                         dev_err(&pdev->dev, "Failed to setup interrupt\n");
2390                         goto err_out_disable_msi;
2391                 }
2392         }
2393
2394         err = qlcnic_get_act_pci_func(adapter);
2395         if (err)
2396                 goto err_out_disable_mbx_intr;
2397
2398         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2399         if (err)
2400                 goto err_out_disable_mbx_intr;
2401
2402         if (adapter->portnum == 0)
2403                 qlcnic_set_drv_version(adapter);
2404
2405         pci_set_drvdata(pdev, adapter);
2406
2407         if (qlcnic_82xx_check(adapter))
2408                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2409                                      FW_POLL_DELAY);
2410
2411         switch (adapter->ahw->port_type) {
2412         case QLCNIC_GBE:
2413                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2414                                 adapter->netdev->name);
2415                 break;
2416         case QLCNIC_XGBE:
2417                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2418                                 adapter->netdev->name);
2419                 break;
2420         }
2421
2422         if (adapter->drv_mac_learn)
2423                 qlcnic_alloc_lb_filters_mem(adapter);
2424
2425         qlcnic_add_sysfs(adapter);
2426
2427         return 0;
2428
2429 err_out_disable_mbx_intr:
2430         if (qlcnic_83xx_check(adapter))
2431                 qlcnic_83xx_free_mbx_intr(adapter);
2432
2433 err_out_disable_msi:
2434         qlcnic_teardown_intr(adapter);
2435         qlcnic_cancel_idc_work(adapter);
2436         qlcnic_clr_all_drv_state(adapter, 0);
2437
2438 err_out_free_hw:
2439         qlcnic_free_adapter_resources(adapter);
2440
2441 err_out_free_wq:
2442         destroy_workqueue(adapter->qlcnic_wq);
2443
2444 err_out_free_netdev:
2445         free_netdev(netdev);
2446
2447 err_out_iounmap:
2448         qlcnic_cleanup_pci_map(ahw);
2449
2450 err_out_free_hw_res:
2451         kfree(ahw);
2452
2453 err_out_free_res:
2454         pci_release_regions(pdev);
2455
2456 err_out_disable_pdev:
2457         pci_disable_device(pdev);
2458         return err;
2459
2460 err_out_maintenance_mode:
2461         set_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state);
2462         netdev->netdev_ops = &qlcnic_netdev_failed_ops;
2463         SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_failed_ops);
2464         ahw->port_type = QLCNIC_XGBE;
2465
2466         if (qlcnic_83xx_check(adapter))
2467                 adapter->tgt_status_reg = NULL;
2468         else
2469                 ahw->board_type = QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS;
2470
2471         err = register_netdev(netdev);
2472
2473         if (err) {
2474                 dev_err(&pdev->dev, "Failed to register net device\n");
2475                 qlcnic_clr_all_drv_state(adapter, 0);
2476                 goto err_out_free_hw;
2477         }
2478
2479         pci_set_drvdata(pdev, adapter);
2480         qlcnic_add_sysfs(adapter);
2481
2482         return 0;
2483 }
2484
2485 static void qlcnic_remove(struct pci_dev *pdev)
2486 {
2487         struct qlcnic_adapter *adapter;
2488         struct net_device *netdev;
2489         struct qlcnic_hardware_context *ahw;
2490
2491         adapter = pci_get_drvdata(pdev);
2492         if (adapter == NULL)
2493                 return;
2494
2495         netdev = adapter->netdev;
2496         qlcnic_sriov_pf_disable(adapter);
2497
2498         qlcnic_cancel_idc_work(adapter);
2499         ahw = adapter->ahw;
2500
2501         unregister_netdev(netdev);
2502         qlcnic_sriov_cleanup(adapter);
2503
2504         if (qlcnic_83xx_check(adapter)) {
2505                 qlcnic_83xx_initialize_nic(adapter, 0);
2506                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2507                 qlcnic_83xx_free_mbx_intr(adapter);
2508                 qlcnic_83xx_detach_mailbox_work(adapter);
2509                 qlcnic_83xx_free_mailbox(ahw->mailbox);
2510                 kfree(ahw->fw_info);
2511         }
2512
2513         qlcnic_dcb_free(adapter->dcb);
2514
2515         qlcnic_detach(adapter);
2516
2517         if (adapter->npars != NULL)
2518                 kfree(adapter->npars);
2519         if (adapter->eswitch != NULL)
2520                 kfree(adapter->eswitch);
2521
2522         if (qlcnic_82xx_check(adapter))
2523                 qlcnic_clr_all_drv_state(adapter, 0);
2524
2525         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2526
2527         qlcnic_free_lb_filters_mem(adapter);
2528
2529         qlcnic_teardown_intr(adapter);
2530
2531         qlcnic_remove_sysfs(adapter);
2532
2533         qlcnic_cleanup_pci_map(adapter->ahw);
2534
2535         qlcnic_release_firmware(adapter);
2536
2537         pci_disable_pcie_error_reporting(pdev);
2538         pci_release_regions(pdev);
2539         pci_disable_device(pdev);
2540
2541         if (adapter->qlcnic_wq) {
2542                 destroy_workqueue(adapter->qlcnic_wq);
2543                 adapter->qlcnic_wq = NULL;
2544         }
2545
2546         qlcnic_free_adapter_resources(adapter);
2547         kfree(ahw);
2548         free_netdev(netdev);
2549 }
2550
2551 static void qlcnic_shutdown(struct pci_dev *pdev)
2552 {
2553         if (__qlcnic_shutdown(pdev))
2554                 return;
2555
2556         pci_disable_device(pdev);
2557 }
2558
2559 #ifdef CONFIG_PM
2560 static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2561 {
2562         int retval;
2563
2564         retval = __qlcnic_shutdown(pdev);
2565         if (retval)
2566                 return retval;
2567
2568         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2569         return 0;
2570 }
2571
2572 static int qlcnic_resume(struct pci_dev *pdev)
2573 {
2574         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2575         int err;
2576
2577         err = pci_enable_device(pdev);
2578         if (err)
2579                 return err;
2580
2581         pci_set_power_state(pdev, PCI_D0);
2582         pci_set_master(pdev);
2583         pci_restore_state(pdev);
2584
2585         return  __qlcnic_resume(adapter);
2586 }
2587 #endif
2588
2589 static int qlcnic_open(struct net_device *netdev)
2590 {
2591         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2592         int err;
2593
2594         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
2595                 netdev_err(netdev, "%s: Device is in non-operational state\n",
2596                            __func__);
2597
2598                 return -EIO;
2599         }
2600
2601         netif_carrier_off(netdev);
2602
2603         err = qlcnic_attach(adapter);
2604         if (err)
2605                 return err;
2606
2607         err = __qlcnic_up(adapter, netdev);
2608         if (err)
2609                 goto err_out;
2610
2611         netif_tx_start_all_queues(netdev);
2612
2613         return 0;
2614
2615 err_out:
2616         qlcnic_detach(adapter);
2617         return err;
2618 }
2619
2620 /*
2621  * qlcnic_close - Disables a network interface entry point
2622  */
2623 static int qlcnic_close(struct net_device *netdev)
2624 {
2625         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2626
2627         __qlcnic_down(adapter, netdev);
2628
2629         return 0;
2630 }
2631
2632 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2633 {
2634         void *head;
2635         int i;
2636         struct net_device *netdev = adapter->netdev;
2637         u32 filter_size = 0;
2638         u16 act_pci_func = 0;
2639
2640         if (adapter->fhash.fmax && adapter->fhash.fhead)
2641                 return;
2642
2643         act_pci_func = adapter->ahw->total_nic_func;
2644         spin_lock_init(&adapter->mac_learn_lock);
2645         spin_lock_init(&adapter->rx_mac_learn_lock);
2646
2647         if (qlcnic_82xx_check(adapter)) {
2648                 filter_size = QLCNIC_LB_MAX_FILTERS;
2649                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2650         } else {
2651                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2652                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2653         }
2654
2655         head = kcalloc(adapter->fhash.fbucket_size,
2656                        sizeof(struct hlist_head), GFP_ATOMIC);
2657
2658         if (!head)
2659                 return;
2660
2661         adapter->fhash.fmax = (filter_size / act_pci_func);
2662         adapter->fhash.fhead = head;
2663
2664         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2665                     act_pci_func, adapter->fhash.fmax);
2666
2667         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2668                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2669
2670         adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2671
2672         head = kcalloc(adapter->rx_fhash.fbucket_size,
2673                        sizeof(struct hlist_head), GFP_ATOMIC);
2674
2675         if (!head)
2676                 return;
2677
2678         adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2679         adapter->rx_fhash.fhead = head;
2680
2681         for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2682                 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2683 }
2684
2685 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2686 {
2687         if (adapter->fhash.fmax && adapter->fhash.fhead)
2688                 kfree(adapter->fhash.fhead);
2689
2690         adapter->fhash.fhead = NULL;
2691         adapter->fhash.fmax = 0;
2692
2693         if (adapter->rx_fhash.fmax && adapter->rx_fhash.fhead)
2694                 kfree(adapter->rx_fhash.fhead);
2695
2696         adapter->rx_fhash.fmax = 0;
2697         adapter->rx_fhash.fhead = NULL;
2698 }
2699
2700 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2701 {
2702         struct net_device *netdev = adapter->netdev;
2703         u32 temp_state, temp_val, temp = 0;
2704         int rv = 0;
2705
2706         if (qlcnic_83xx_check(adapter))
2707                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2708
2709         if (qlcnic_82xx_check(adapter))
2710                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2711
2712         temp_state = qlcnic_get_temp_state(temp);
2713         temp_val = qlcnic_get_temp_val(temp);
2714
2715         if (temp_state == QLCNIC_TEMP_PANIC) {
2716                 dev_err(&netdev->dev,
2717                        "Device temperature %d degrees C exceeds"
2718                        " maximum allowed. Hardware has been shut down.\n",
2719                        temp_val);
2720                 rv = 1;
2721         } else if (temp_state == QLCNIC_TEMP_WARN) {
2722                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2723                         dev_err(&netdev->dev,
2724                                "Device temperature %d degrees C "
2725                                "exceeds operating range."
2726                                " Immediate action needed.\n",
2727                                temp_val);
2728                 }
2729         } else {
2730                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2731                         dev_info(&netdev->dev,
2732                                "Device temperature is now %d degrees C"
2733                                " in normal range.\n", temp_val);
2734                 }
2735         }
2736         adapter->ahw->temp = temp_state;
2737         return rv;
2738 }
2739
2740 static void qlcnic_tx_timeout(struct net_device *netdev)
2741 {
2742         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2743         struct qlcnic_host_tx_ring *tx_ring;
2744         int ring;
2745
2746         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2747                 return;
2748
2749         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS) {
2750                 netdev_info(netdev, "Tx timeout, reset the adapter.\n");
2751                 if (qlcnic_82xx_check(adapter))
2752                         adapter->need_fw_reset = 1;
2753                 else if (qlcnic_83xx_check(adapter))
2754                         qlcnic_83xx_idc_request_reset(adapter,
2755                                                       QLCNIC_FORCE_FW_DUMP_KEY);
2756         } else {
2757                 netdev_info(netdev, "Tx timeout, reset adapter context.\n");
2758                 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2759                         tx_ring = &adapter->tx_ring[ring];
2760                         netdev_info(netdev, "Tx ring=%d\n", ring);
2761                         netdev_info(netdev,
2762                                     "crb_intr_mask=%d, producer=%d, sw_consumer=%d, hw_consumer=%d\n",
2763                                     readl(tx_ring->crb_intr_mask),
2764                                     readl(tx_ring->crb_cmd_producer),
2765                                     tx_ring->sw_consumer,
2766                                     le32_to_cpu(*(tx_ring->hw_consumer)));
2767                         netdev_info(netdev,
2768                                     "xmit_finished=%llu, xmit_called=%llu, xmit_on=%llu, xmit_off=%llu\n",
2769                                     tx_ring->tx_stats.xmit_finished,
2770                                     tx_ring->tx_stats.xmit_called,
2771                                     tx_ring->tx_stats.xmit_on,
2772                                     tx_ring->tx_stats.xmit_off);
2773                 }
2774                 adapter->ahw->reset_context = 1;
2775         }
2776 }
2777
2778 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2779 {
2780         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2781         struct net_device_stats *stats = &netdev->stats;
2782
2783         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2784         stats->tx_packets = adapter->stats.xmitfinished;
2785         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2786         stats->tx_bytes = adapter->stats.txbytes;
2787         stats->rx_dropped = adapter->stats.rxdropped;
2788         stats->tx_dropped = adapter->stats.txdropped;
2789
2790         return stats;
2791 }
2792
2793 irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
2794 {
2795         u32 status;
2796
2797         status = readl(adapter->isr_int_vec);
2798
2799         if (!(status & adapter->ahw->int_vec_bit))
2800                 return IRQ_NONE;
2801
2802         /* check interrupt state machine, to be sure */
2803         status = readl(adapter->crb_int_state_reg);
2804         if (!ISR_LEGACY_INT_TRIGGERED(status))
2805                 return IRQ_NONE;
2806
2807         writel(0xffffffff, adapter->tgt_status_reg);
2808         /* read twice to ensure write is flushed */
2809         readl(adapter->isr_int_vec);
2810         readl(adapter->isr_int_vec);
2811
2812         return IRQ_HANDLED;
2813 }
2814
2815 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2816 {
2817         struct qlcnic_host_sds_ring *sds_ring = data;
2818         struct qlcnic_adapter *adapter = sds_ring->adapter;
2819
2820         if (adapter->flags & QLCNIC_MSIX_ENABLED)
2821                 goto done;
2822         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2823                 writel(0xffffffff, adapter->tgt_status_reg);
2824                 goto done;
2825         }
2826
2827         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2828                 return IRQ_NONE;
2829
2830 done:
2831         adapter->ahw->diag_cnt++;
2832         qlcnic_enable_int(sds_ring);
2833         return IRQ_HANDLED;
2834 }
2835
2836 static irqreturn_t qlcnic_intr(int irq, void *data)
2837 {
2838         struct qlcnic_host_sds_ring *sds_ring = data;
2839         struct qlcnic_adapter *adapter = sds_ring->adapter;
2840
2841         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2842                 return IRQ_NONE;
2843
2844         napi_schedule(&sds_ring->napi);
2845
2846         return IRQ_HANDLED;
2847 }
2848
2849 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2850 {
2851         struct qlcnic_host_sds_ring *sds_ring = data;
2852         struct qlcnic_adapter *adapter = sds_ring->adapter;
2853
2854         /* clear interrupt */
2855         writel(0xffffffff, adapter->tgt_status_reg);
2856
2857         napi_schedule(&sds_ring->napi);
2858         return IRQ_HANDLED;
2859 }
2860
2861 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2862 {
2863         struct qlcnic_host_sds_ring *sds_ring = data;
2864
2865         napi_schedule(&sds_ring->napi);
2866         return IRQ_HANDLED;
2867 }
2868
2869 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
2870 {
2871         struct qlcnic_host_tx_ring *tx_ring = data;
2872
2873         napi_schedule(&tx_ring->napi);
2874         return IRQ_HANDLED;
2875 }
2876
2877 #ifdef CONFIG_NET_POLL_CONTROLLER
2878 static void qlcnic_poll_controller(struct net_device *netdev)
2879 {
2880         int ring;
2881         struct qlcnic_host_sds_ring *sds_ring;
2882         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2883         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2884
2885         disable_irq(adapter->irq);
2886         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2887                 sds_ring = &recv_ctx->sds_rings[ring];
2888                 qlcnic_intr(adapter->irq, sds_ring);
2889         }
2890         enable_irq(adapter->irq);
2891 }
2892 #endif
2893
2894 static void
2895 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2896 {
2897         u32 val;
2898
2899         val = adapter->portnum & 0xf;
2900         val |= encoding << 7;
2901         val |= (jiffies - adapter->dev_rst_time) << 8;
2902
2903         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2904         adapter->dev_rst_time = jiffies;
2905 }
2906
2907 static int
2908 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2909 {
2910         u32  val;
2911
2912         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2913                         state != QLCNIC_DEV_NEED_QUISCENT);
2914
2915         if (qlcnic_api_lock(adapter))
2916                 return -EIO;
2917
2918         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2919
2920         if (state == QLCNIC_DEV_NEED_RESET)
2921                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2922         else if (state == QLCNIC_DEV_NEED_QUISCENT)
2923                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2924
2925         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2926
2927         qlcnic_api_unlock(adapter);
2928
2929         return 0;
2930 }
2931
2932 static int
2933 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2934 {
2935         u32  val;
2936
2937         if (qlcnic_api_lock(adapter))
2938                 return -EBUSY;
2939
2940         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2941         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2942         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2943
2944         qlcnic_api_unlock(adapter);
2945
2946         return 0;
2947 }
2948
2949 void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2950 {
2951         u32  val;
2952
2953         if (qlcnic_api_lock(adapter))
2954                 goto err;
2955
2956         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2957         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2958         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2959
2960         if (failed) {
2961                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2962                                     QLCNIC_DEV_FAILED);
2963                 dev_info(&adapter->pdev->dev,
2964                                 "Device state set to Failed. Please Reboot\n");
2965         } else if (!(val & 0x11111111))
2966                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2967                                     QLCNIC_DEV_COLD);
2968
2969         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2970         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2971         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2972
2973         qlcnic_api_unlock(adapter);
2974 err:
2975         adapter->fw_fail_cnt = 0;
2976         adapter->flags &= ~QLCNIC_FW_HANG;
2977         clear_bit(__QLCNIC_START_FW, &adapter->state);
2978         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2979 }
2980
2981 /* Grab api lock, before checking state */
2982 static int
2983 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2984 {
2985         int act, state, active_mask;
2986         struct qlcnic_hardware_context *ahw = adapter->ahw;
2987
2988         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2989         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2990
2991         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
2992                 active_mask = (~(1 << (ahw->pci_func * 4)));
2993                 act = act & active_mask;
2994         }
2995
2996         if (((state & 0x11111111) == (act & 0x11111111)) ||
2997                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2998                 return 0;
2999         else
3000                 return 1;
3001 }
3002
3003 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
3004 {
3005         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
3006
3007         if (val != QLCNIC_DRV_IDC_VER) {
3008                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
3009                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
3010         }
3011
3012         return 0;
3013 }
3014
3015 static int
3016 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
3017 {
3018         u32 val, prev_state;
3019         u8 dev_init_timeo = adapter->dev_init_timeo;
3020         u8 portnum = adapter->portnum;
3021         u8 ret;
3022
3023         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
3024                 return 1;
3025
3026         if (qlcnic_api_lock(adapter))
3027                 return -1;
3028
3029         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3030         if (!(val & (1 << (portnum * 4)))) {
3031                 QLC_DEV_SET_REF_CNT(val, portnum);
3032                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3033         }
3034
3035         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3036         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
3037
3038         switch (prev_state) {
3039         case QLCNIC_DEV_COLD:
3040                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3041                                     QLCNIC_DEV_INITIALIZING);
3042                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
3043                                     QLCNIC_DRV_IDC_VER);
3044                 qlcnic_idc_debug_info(adapter, 0);
3045                 qlcnic_api_unlock(adapter);
3046                 return 1;
3047
3048         case QLCNIC_DEV_READY:
3049                 ret = qlcnic_check_idc_ver(adapter);
3050                 qlcnic_api_unlock(adapter);
3051                 return ret;
3052
3053         case QLCNIC_DEV_NEED_RESET:
3054                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3055                 QLC_DEV_SET_RST_RDY(val, portnum);
3056                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3057                 break;
3058
3059         case QLCNIC_DEV_NEED_QUISCENT:
3060                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3061                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
3062                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3063                 break;
3064
3065         case QLCNIC_DEV_FAILED:
3066                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
3067                 qlcnic_api_unlock(adapter);
3068                 return -1;
3069
3070         case QLCNIC_DEV_INITIALIZING:
3071         case QLCNIC_DEV_QUISCENT:
3072                 break;
3073         }
3074
3075         qlcnic_api_unlock(adapter);
3076
3077         do {
3078                 msleep(1000);
3079                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3080
3081                 if (prev_state == QLCNIC_DEV_QUISCENT)
3082                         continue;
3083         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
3084
3085         if (!dev_init_timeo) {
3086                 dev_err(&adapter->pdev->dev,
3087                         "Waiting for device to initialize timeout\n");
3088                 return -1;
3089         }
3090
3091         if (qlcnic_api_lock(adapter))
3092                 return -1;
3093
3094         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3095         QLC_DEV_CLR_RST_QSCNT(val, portnum);
3096         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3097
3098         ret = qlcnic_check_idc_ver(adapter);
3099         qlcnic_api_unlock(adapter);
3100
3101         return ret;
3102 }
3103
3104 static void
3105 qlcnic_fwinit_work(struct work_struct *work)
3106 {
3107         struct qlcnic_adapter *adapter = container_of(work,
3108                         struct qlcnic_adapter, fw_work.work);
3109         u32 dev_state = 0xf;
3110         u32 val;
3111
3112         if (qlcnic_api_lock(adapter))
3113                 goto err_ret;
3114
3115         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3116         if (dev_state == QLCNIC_DEV_QUISCENT ||
3117             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3118                 qlcnic_api_unlock(adapter);
3119                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
3120                                                 FW_POLL_DELAY * 2);
3121                 return;
3122         }
3123
3124         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
3125                 qlcnic_api_unlock(adapter);
3126                 goto wait_npar;
3127         }
3128
3129         if (dev_state == QLCNIC_DEV_INITIALIZING ||
3130             dev_state == QLCNIC_DEV_READY) {
3131                 dev_info(&adapter->pdev->dev, "Detected state change from "
3132                                 "DEV_NEED_RESET, skipping ack check\n");
3133                 goto skip_ack_check;
3134         }
3135
3136         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
3137                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
3138                                         adapter->reset_ack_timeo);
3139                 goto skip_ack_check;
3140         }
3141
3142         if (!qlcnic_check_drv_state(adapter)) {
3143 skip_ack_check:
3144                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3145
3146                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
3147                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3148                                             QLCNIC_DEV_INITIALIZING);
3149                         set_bit(__QLCNIC_START_FW, &adapter->state);
3150                         QLCDB(adapter, DRV, "Restarting fw\n");
3151                         qlcnic_idc_debug_info(adapter, 0);
3152                         val = QLC_SHARED_REG_RD32(adapter,
3153                                                   QLCNIC_CRB_DRV_STATE);
3154                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3155                         QLC_SHARED_REG_WR32(adapter,
3156                                             QLCNIC_CRB_DRV_STATE, val);
3157                 }
3158
3159                 qlcnic_api_unlock(adapter);
3160
3161                 rtnl_lock();
3162                 if (qlcnic_check_fw_dump_state(adapter) &&
3163                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3164                         QLCDB(adapter, DRV, "Take FW dump\n");
3165                         qlcnic_dump_fw(adapter);
3166                         adapter->flags |= QLCNIC_FW_HANG;
3167                 }
3168                 rtnl_unlock();
3169
3170                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
3171                 if (!adapter->nic_ops->start_firmware(adapter)) {
3172                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3173                         adapter->fw_wait_cnt = 0;
3174                         return;
3175                 }
3176                 goto err_ret;
3177         }
3178
3179         qlcnic_api_unlock(adapter);
3180
3181 wait_npar:
3182         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3183         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
3184
3185         switch (dev_state) {
3186         case QLCNIC_DEV_READY:
3187                 if (!qlcnic_start_firmware(adapter)) {
3188                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3189                         adapter->fw_wait_cnt = 0;
3190                         return;
3191                 }
3192         case QLCNIC_DEV_FAILED:
3193                 break;
3194         default:
3195                 qlcnic_schedule_work(adapter,
3196                         qlcnic_fwinit_work, FW_POLL_DELAY);
3197                 return;
3198         }
3199
3200 err_ret:
3201         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
3202                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
3203         netif_device_attach(adapter->netdev);
3204         qlcnic_clr_all_drv_state(adapter, 0);
3205 }
3206
3207 static void
3208 qlcnic_detach_work(struct work_struct *work)
3209 {
3210         struct qlcnic_adapter *adapter = container_of(work,
3211                         struct qlcnic_adapter, fw_work.work);
3212         struct net_device *netdev = adapter->netdev;
3213         u32 status;
3214
3215         netif_device_detach(netdev);
3216
3217         /* Dont grab rtnl lock during Quiscent mode */
3218         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3219                 if (netif_running(netdev))
3220                         __qlcnic_down(adapter, netdev);
3221         } else
3222                 qlcnic_down(adapter, netdev);
3223
3224         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3225
3226         if (status & QLCNIC_RCODE_FATAL_ERROR) {
3227                 dev_err(&adapter->pdev->dev,
3228                         "Detaching the device: peg halt status1=0x%x\n",
3229                                         status);
3230
3231                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
3232                         dev_err(&adapter->pdev->dev,
3233                         "On board active cooling fan failed. "
3234                                 "Device has been halted.\n");
3235                         dev_err(&adapter->pdev->dev,
3236                                 "Replace the adapter.\n");
3237                 }
3238
3239                 goto err_ret;
3240         }
3241
3242         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
3243                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
3244                         adapter->ahw->temp);
3245                 goto err_ret;
3246         }
3247
3248         /* Dont ack if this instance is the reset owner */
3249         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3250                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
3251                         dev_err(&adapter->pdev->dev,
3252                                 "Failed to set driver state,"
3253                                         "detaching the device.\n");
3254                         goto err_ret;
3255                 }
3256         }
3257
3258         adapter->fw_wait_cnt = 0;
3259
3260         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3261
3262         return;
3263
3264 err_ret:
3265         netif_device_attach(netdev);
3266         qlcnic_clr_all_drv_state(adapter, 1);
3267 }
3268
3269 /*Transit NPAR state to NON Operational */
3270 static void
3271 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3272 {
3273         u32 state;
3274
3275         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3276         if (state == QLCNIC_DEV_NPAR_NON_OPER)
3277                 return;
3278
3279         if (qlcnic_api_lock(adapter))
3280                 return;
3281         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3282                             QLCNIC_DEV_NPAR_NON_OPER);
3283         qlcnic_api_unlock(adapter);
3284 }
3285
3286 void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter, u32 key)
3287 {
3288         u32 state, xg_val = 0, gb_val = 0;
3289
3290         qlcnic_xg_set_xg0_mask(xg_val);
3291         qlcnic_xg_set_xg1_mask(xg_val);
3292         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3293         qlcnic_gb_set_gb0_mask(gb_val);
3294         qlcnic_gb_set_gb1_mask(gb_val);
3295         qlcnic_gb_set_gb2_mask(gb_val);
3296         qlcnic_gb_set_gb3_mask(gb_val);
3297         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3298         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3299                                 " on all ports\n");
3300         adapter->need_fw_reset = 1;
3301
3302         if (qlcnic_api_lock(adapter))
3303                 return;
3304
3305         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3306
3307         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
3308                 netdev_err(adapter->netdev, "%s: Device is in non-operational state\n",
3309                            __func__);
3310                 qlcnic_api_unlock(adapter);
3311
3312                 return;
3313         }
3314
3315         if (state == QLCNIC_DEV_READY) {
3316                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3317                                     QLCNIC_DEV_NEED_RESET);
3318                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3319                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3320                 qlcnic_idc_debug_info(adapter, 0);
3321         }
3322
3323         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3324                             QLCNIC_DEV_NPAR_NON_OPER);
3325         qlcnic_api_unlock(adapter);
3326 }
3327
3328 /* Transit to NPAR READY state from NPAR NOT READY state */
3329 static void
3330 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3331 {
3332         if (qlcnic_api_lock(adapter))
3333                 return;
3334
3335         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3336                             QLCNIC_DEV_NPAR_OPER);
3337         QLCDB(adapter, DRV, "NPAR operational state set\n");
3338
3339         qlcnic_api_unlock(adapter);
3340 }
3341
3342 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3343                           work_func_t func, int delay)
3344 {
3345         if (test_bit(__QLCNIC_AER, &adapter->state))
3346                 return;
3347
3348         INIT_DELAYED_WORK(&adapter->fw_work, func);
3349         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3350                            round_jiffies_relative(delay));
3351 }
3352
3353 static void
3354 qlcnic_attach_work(struct work_struct *work)
3355 {
3356         struct qlcnic_adapter *adapter = container_of(work,
3357                                 struct qlcnic_adapter, fw_work.work);
3358         struct net_device *netdev = adapter->netdev;
3359         u32 npar_state;
3360
3361         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3362                 npar_state = QLC_SHARED_REG_RD32(adapter,
3363                                                  QLCNIC_CRB_DEV_NPAR_STATE);
3364                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3365                         qlcnic_clr_all_drv_state(adapter, 0);
3366                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3367                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
3368                                                         FW_POLL_DELAY);
3369                 else
3370                         goto attach;
3371                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3372                 return;
3373         }
3374 attach:
3375         qlcnic_dcb_get_info(adapter->dcb);
3376
3377         if (netif_running(netdev)) {
3378                 if (qlcnic_up(adapter, netdev))
3379                         goto done;
3380
3381                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3382         }
3383
3384 done:
3385         netif_device_attach(netdev);
3386         adapter->fw_fail_cnt = 0;
3387         adapter->flags &= ~QLCNIC_FW_HANG;
3388         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3389         if (adapter->portnum == 0)
3390                 qlcnic_set_drv_version(adapter);
3391
3392         if (!qlcnic_clr_drv_state(adapter))
3393                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3394                                                         FW_POLL_DELAY);
3395 }
3396
3397 static int
3398 qlcnic_check_health(struct qlcnic_adapter *adapter)
3399 {
3400         struct qlcnic_hardware_context *ahw = adapter->ahw;
3401         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
3402         u32 state = 0, heartbeat;
3403         u32 peg_status;
3404         int err = 0;
3405
3406         if (qlcnic_check_temp(adapter))
3407                 goto detach;
3408
3409         if (adapter->need_fw_reset)
3410                 qlcnic_dev_request_reset(adapter, 0);
3411
3412         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3413         if (state == QLCNIC_DEV_NEED_RESET) {
3414                 qlcnic_set_npar_non_operational(adapter);
3415                 adapter->need_fw_reset = 1;
3416         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3417                 goto detach;
3418
3419         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3420         if (heartbeat != adapter->heartbeat) {
3421                 adapter->heartbeat = heartbeat;
3422                 adapter->fw_fail_cnt = 0;
3423                 if (adapter->need_fw_reset)
3424                         goto detach;
3425
3426                 if (ahw->reset_context && qlcnic_auto_fw_reset)
3427                         qlcnic_reset_hw_context(adapter);
3428
3429                 return 0;
3430         }
3431
3432         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3433                 return 0;
3434
3435         adapter->flags |= QLCNIC_FW_HANG;
3436
3437         qlcnic_dev_request_reset(adapter, 0);
3438
3439         if (qlcnic_auto_fw_reset)
3440                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3441
3442         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3443         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3444         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3445                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3446                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3447                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3448                         "PEG_NET_4_PC: 0x%x\n",
3449                         peg_status,
3450                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3451                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3452                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3453                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3454                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3455                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3456         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3457                 dev_err(&adapter->pdev->dev,
3458                         "Firmware aborted with error code 0x00006700. "
3459                                 "Device is being reset.\n");
3460 detach:
3461         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3462                 QLCNIC_DEV_NEED_RESET;
3463
3464         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3465                                                       &adapter->state)) {
3466
3467                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3468                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3469         } else if (!qlcnic_auto_fw_reset && fw_dump->enable &&
3470                    adapter->flags & QLCNIC_FW_RESET_OWNER) {
3471                 qlcnic_dump_fw(adapter);
3472         }
3473
3474         return 1;
3475 }
3476
3477 void qlcnic_fw_poll_work(struct work_struct *work)
3478 {
3479         struct qlcnic_adapter *adapter = container_of(work,
3480                                 struct qlcnic_adapter, fw_work.work);
3481
3482         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3483                 goto reschedule;
3484
3485
3486         if (qlcnic_check_health(adapter))
3487                 return;
3488
3489         if (adapter->fhash.fnum)
3490                 qlcnic_prune_lb_filters(adapter);
3491
3492 reschedule:
3493         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3494 }
3495
3496 static int qlcnic_is_first_func(struct pci_dev *pdev)
3497 {
3498         struct pci_dev *oth_pdev;
3499         int val = pdev->devfn;
3500
3501         while (val-- > 0) {
3502                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3503                         (pdev->bus), pdev->bus->number,
3504                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3505                 if (!oth_pdev)
3506                         continue;
3507
3508                 if (oth_pdev->current_state != PCI_D3cold) {
3509                         pci_dev_put(oth_pdev);
3510                         return 0;
3511                 }
3512                 pci_dev_put(oth_pdev);
3513         }
3514         return 1;
3515 }
3516
3517 static int qlcnic_attach_func(struct pci_dev *pdev)
3518 {
3519         int err, first_func;
3520         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3521         struct net_device *netdev = adapter->netdev;
3522
3523         pdev->error_state = pci_channel_io_normal;
3524
3525         err = pci_enable_device(pdev);
3526         if (err)
3527                 return err;
3528
3529         pci_set_master(pdev);
3530         pci_restore_state(pdev);
3531
3532         first_func = qlcnic_is_first_func(pdev);
3533
3534         if (qlcnic_api_lock(adapter))
3535                 return -EINVAL;
3536
3537         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3538                 adapter->need_fw_reset = 1;
3539                 set_bit(__QLCNIC_START_FW, &adapter->state);
3540                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3541                                     QLCNIC_DEV_INITIALIZING);
3542                 QLCDB(adapter, DRV, "Restarting fw\n");
3543         }
3544         qlcnic_api_unlock(adapter);
3545
3546         err = qlcnic_start_firmware(adapter);
3547         if (err)
3548                 return err;
3549
3550         qlcnic_clr_drv_state(adapter);
3551         kfree(adapter->msix_entries);
3552         adapter->msix_entries = NULL;
3553         err = qlcnic_setup_intr(adapter);
3554
3555         if (err) {
3556                 kfree(adapter->msix_entries);
3557                 netdev_err(netdev, "failed to setup interrupt\n");
3558                 return err;
3559         }
3560
3561         if (netif_running(netdev)) {
3562                 err = qlcnic_attach(adapter);
3563                 if (err) {
3564                         qlcnic_clr_all_drv_state(adapter, 1);
3565                         clear_bit(__QLCNIC_AER, &adapter->state);
3566                         netif_device_attach(netdev);
3567                         return err;
3568                 }
3569
3570                 err = qlcnic_up(adapter, netdev);
3571                 if (err)
3572                         goto done;
3573
3574                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3575         }
3576  done:
3577         netif_device_attach(netdev);
3578         return err;
3579 }
3580
3581 pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
3582                                                pci_channel_state_t state)
3583 {
3584         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3585         struct net_device *netdev = adapter->netdev;
3586
3587         if (state == pci_channel_io_perm_failure)
3588                 return PCI_ERS_RESULT_DISCONNECT;
3589
3590         if (state == pci_channel_io_normal)
3591                 return PCI_ERS_RESULT_RECOVERED;
3592
3593         set_bit(__QLCNIC_AER, &adapter->state);
3594         netif_device_detach(netdev);
3595
3596         cancel_delayed_work_sync(&adapter->fw_work);
3597
3598         if (netif_running(netdev))
3599                 qlcnic_down(adapter, netdev);
3600
3601         qlcnic_detach(adapter);
3602         qlcnic_teardown_intr(adapter);
3603
3604         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3605
3606         pci_save_state(pdev);
3607         pci_disable_device(pdev);
3608
3609         return PCI_ERS_RESULT_NEED_RESET;
3610 }
3611
3612 pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
3613 {
3614         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3615                                 PCI_ERS_RESULT_RECOVERED;
3616 }
3617
3618 void qlcnic_82xx_io_resume(struct pci_dev *pdev)
3619 {
3620         u32 state;
3621         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3622
3623         pci_cleanup_aer_uncorrect_error_status(pdev);
3624         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3625         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3626                                                             &adapter->state))
3627                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3628                                      FW_POLL_DELAY);
3629 }
3630
3631 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3632                                                  pci_channel_state_t state)
3633 {
3634         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3635         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3636
3637         if (hw_ops->io_error_detected) {
3638                 return hw_ops->io_error_detected(pdev, state);
3639         } else {
3640                 dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
3641                 return PCI_ERS_RESULT_DISCONNECT;
3642         }
3643 }
3644
3645 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3646 {
3647         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3648         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3649
3650         if (hw_ops->io_slot_reset) {
3651                 return hw_ops->io_slot_reset(pdev);
3652         } else {
3653                 dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
3654                 return PCI_ERS_RESULT_DISCONNECT;
3655         }
3656 }
3657
3658 static void qlcnic_io_resume(struct pci_dev *pdev)
3659 {
3660         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3661         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3662
3663         if (hw_ops->io_resume)
3664                 hw_ops->io_resume(pdev);
3665         else
3666                 dev_err(&pdev->dev, "AER resume handler not registered.\n");
3667 }
3668
3669
3670 static int
3671 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3672 {
3673         int err;
3674
3675         err = qlcnic_can_start_firmware(adapter);
3676         if (err)
3677                 return err;
3678
3679         err = qlcnic_check_npar_opertional(adapter);
3680         if (err)
3681                 return err;
3682
3683         err = qlcnic_initialize_nic(adapter);
3684         if (err)
3685                 return err;
3686
3687         qlcnic_check_options(adapter);
3688
3689         err = qlcnic_set_eswitch_port_config(adapter);
3690         if (err)
3691                 return err;
3692
3693         adapter->need_fw_reset = 0;
3694
3695         return err;
3696 }
3697
3698 int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt,
3699                           int queue_type)
3700 {
3701         struct net_device *netdev = adapter->netdev;
3702         u8 max_hw_rings = 0;
3703         char buf[8];
3704         int cur_rings;
3705
3706         if (queue_type == QLCNIC_RX_QUEUE) {
3707                 max_hw_rings = adapter->max_sds_rings;
3708                 cur_rings = adapter->drv_sds_rings;
3709                 strcpy(buf, "SDS");
3710         } else if (queue_type == QLCNIC_TX_QUEUE) {
3711                 max_hw_rings = adapter->max_tx_rings;
3712                 cur_rings = adapter->drv_tx_rings;
3713                 strcpy(buf, "Tx");
3714         }
3715
3716         if (!qlcnic_use_msi_x && !qlcnic_use_msi) {
3717                 netdev_err(netdev, "No RSS/TSS support in INT-x mode\n");
3718                 return -EINVAL;
3719         }
3720
3721         if (adapter->flags & QLCNIC_MSI_ENABLED) {
3722                 netdev_err(netdev, "No RSS/TSS support in MSI mode\n");
3723                 return -EINVAL;
3724         }
3725
3726         if (!is_power_of_2(ring_cnt)) {
3727                 netdev_err(netdev, "%s rings value should be a power of 2\n",
3728                            buf);
3729                 return -EINVAL;
3730         }
3731
3732         if (qlcnic_82xx_check(adapter) && (queue_type == QLCNIC_TX_QUEUE) &&
3733             !qlcnic_check_multi_tx(adapter)) {
3734                         netdev_err(netdev, "No Multi Tx queue support\n");
3735                         return -EINVAL;
3736         }
3737
3738         if (ring_cnt > num_online_cpus()) {
3739                 netdev_err(netdev,
3740                            "%s value[%u] should not be higher than, number of online CPUs\n",
3741                            buf, num_online_cpus());
3742                 return -EINVAL;
3743         }
3744
3745         return 0;
3746 }
3747
3748 int qlcnic_setup_rings(struct qlcnic_adapter *adapter, u8 rx_cnt, u8 tx_cnt)
3749 {
3750         struct net_device *netdev = adapter->netdev;
3751         int err;
3752
3753         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3754                 return -EBUSY;
3755
3756         netif_device_detach(netdev);
3757         if (netif_running(netdev))
3758                 __qlcnic_down(adapter, netdev);
3759
3760         qlcnic_detach(adapter);
3761
3762         if (qlcnic_83xx_check(adapter)) {
3763                 qlcnic_83xx_free_mbx_intr(adapter);
3764                 qlcnic_83xx_enable_mbx_poll(adapter);
3765         }
3766
3767         qlcnic_teardown_intr(adapter);
3768
3769         /* compute and set default and max tx/sds rings */
3770         qlcnic_set_tx_ring_count(adapter, tx_cnt);
3771         qlcnic_set_sds_ring_count(adapter, rx_cnt);
3772
3773         netif_set_real_num_tx_queues(netdev, adapter->drv_tx_rings);
3774
3775         err = qlcnic_setup_intr(adapter);
3776         if (err) {
3777                 kfree(adapter->msix_entries);
3778                 netdev_err(netdev, "failed to setup interrupt\n");
3779                 return err;
3780         }
3781
3782         if (qlcnic_83xx_check(adapter)) {
3783                 qlcnic_83xx_initialize_nic(adapter, 1);
3784                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3785                 qlcnic_83xx_disable_mbx_poll(adapter);
3786                 if (err) {
3787                         dev_err(&adapter->pdev->dev,
3788                                 "failed to setup mbx interrupt\n");
3789                         goto done;
3790                 }
3791         }
3792
3793         if (netif_running(netdev)) {
3794                 err = qlcnic_attach(adapter);
3795                 if (err)
3796                         goto done;
3797                 err = __qlcnic_up(adapter, netdev);
3798                 if (err)
3799                         goto done;
3800                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3801         }
3802 done:
3803         netif_device_attach(netdev);
3804         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3805         return err;
3806 }
3807
3808 #ifdef CONFIG_INET
3809
3810 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
3811
3812 static void
3813 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
3814                         struct net_device *dev, unsigned long event)
3815 {
3816         struct in_device *indev;
3817
3818         indev = in_dev_get(dev);
3819         if (!indev)
3820                 return;
3821
3822         for_ifa(indev) {
3823                 switch (event) {
3824                 case NETDEV_UP:
3825                         qlcnic_config_ipaddr(adapter,
3826                                         ifa->ifa_address, QLCNIC_IP_UP);
3827                         break;
3828                 case NETDEV_DOWN:
3829                         qlcnic_config_ipaddr(adapter,
3830                                         ifa->ifa_address, QLCNIC_IP_DOWN);
3831                         break;
3832                 default:
3833                         break;
3834                 }
3835         } endfor_ifa(indev);
3836
3837         in_dev_put(indev);
3838 }
3839
3840 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
3841 {
3842         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3843         struct net_device *dev;
3844         u16 vid;
3845
3846         qlcnic_config_indev_addr(adapter, netdev, event);
3847
3848         rcu_read_lock();
3849         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
3850                 dev = __vlan_find_dev_deep(netdev, htons(ETH_P_8021Q), vid);
3851                 if (!dev)
3852                         continue;
3853                 qlcnic_config_indev_addr(adapter, dev, event);
3854         }
3855         rcu_read_unlock();
3856 }
3857
3858 static int qlcnic_netdev_event(struct notifier_block *this,
3859                                  unsigned long event, void *ptr)
3860 {
3861         struct qlcnic_adapter *adapter;
3862         struct net_device *dev = netdev_notifier_info_to_dev(ptr);
3863
3864 recheck:
3865         if (dev == NULL)
3866                 goto done;
3867
3868         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3869                 dev = vlan_dev_real_dev(dev);
3870                 goto recheck;
3871         }
3872
3873         if (!is_qlcnic_netdev(dev))
3874                 goto done;
3875
3876         adapter = netdev_priv(dev);
3877
3878         if (!adapter)
3879                 goto done;
3880
3881         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3882                 goto done;
3883
3884         qlcnic_config_indev_addr(adapter, dev, event);
3885 done:
3886         return NOTIFY_DONE;
3887 }
3888
3889 static int
3890 qlcnic_inetaddr_event(struct notifier_block *this,
3891                 unsigned long event, void *ptr)
3892 {
3893         struct qlcnic_adapter *adapter;
3894         struct net_device *dev;
3895
3896         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3897
3898         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3899
3900 recheck:
3901         if (dev == NULL)
3902                 goto done;
3903
3904         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3905                 dev = vlan_dev_real_dev(dev);
3906                 goto recheck;
3907         }
3908
3909         if (!is_qlcnic_netdev(dev))
3910                 goto done;
3911
3912         adapter = netdev_priv(dev);
3913
3914         if (!adapter)
3915                 goto done;
3916
3917         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3918                 goto done;
3919
3920         switch (event) {
3921         case NETDEV_UP:
3922                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
3923
3924                 break;
3925         case NETDEV_DOWN:
3926                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
3927
3928                 break;
3929         default:
3930                 break;
3931         }
3932
3933 done:
3934         return NOTIFY_DONE;
3935 }
3936
3937 static struct notifier_block    qlcnic_netdev_cb = {
3938         .notifier_call = qlcnic_netdev_event,
3939 };
3940
3941 static struct notifier_block qlcnic_inetaddr_cb = {
3942         .notifier_call = qlcnic_inetaddr_event,
3943 };
3944 #else
3945 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
3946 { }
3947 #endif
3948 static const struct pci_error_handlers qlcnic_err_handler = {
3949         .error_detected = qlcnic_io_error_detected,
3950         .slot_reset = qlcnic_io_slot_reset,
3951         .resume = qlcnic_io_resume,
3952 };
3953
3954 static struct pci_driver qlcnic_driver = {
3955         .name = qlcnic_driver_name,
3956         .id_table = qlcnic_pci_tbl,
3957         .probe = qlcnic_probe,
3958         .remove = qlcnic_remove,
3959 #ifdef CONFIG_PM
3960         .suspend = qlcnic_suspend,
3961         .resume = qlcnic_resume,
3962 #endif
3963         .shutdown = qlcnic_shutdown,
3964         .err_handler = &qlcnic_err_handler,
3965 #ifdef CONFIG_QLCNIC_SRIOV
3966         .sriov_configure = qlcnic_pci_sriov_configure,
3967 #endif
3968
3969 };
3970
3971 static int __init qlcnic_init_module(void)
3972 {
3973         int ret;
3974
3975         printk(KERN_INFO "%s\n", qlcnic_driver_string);
3976
3977 #ifdef CONFIG_INET
3978         register_netdevice_notifier(&qlcnic_netdev_cb);
3979         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
3980 #endif
3981
3982         ret = pci_register_driver(&qlcnic_driver);
3983         if (ret) {
3984 #ifdef CONFIG_INET
3985                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3986                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3987 #endif
3988         }
3989
3990         return ret;
3991 }
3992
3993 module_init(qlcnic_init_module);
3994
3995 static void __exit qlcnic_exit_module(void)
3996 {
3997         pci_unregister_driver(&qlcnic_driver);
3998
3999 #ifdef CONFIG_INET
4000         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4001         unregister_netdevice_notifier(&qlcnic_netdev_cb);
4002 #endif
4003 }
4004
4005 module_exit(qlcnic_exit_module);