drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c

   1 /*
   2  * QLogic qlcnic NIC Driver
   3  * Copyright (c) 2009-2013 QLogic Corporation
   4  *
   5  * See LICENSE.qlcnic for copyright and licensing details.
   6  */
   7
   8 #include <linux/vmalloc.h>
   9 #include <linux/interrupt.h>
  10
  11 #include "qlcnic.h"
  12 #include "qlcnic_sriov.h"
  13 #include "qlcnic_hw.h"
  14
  15 #include <linux/swab.h>
  16 #include <linux/dma-mapping.h>
  17 #include <linux/if_vlan.h>
  18 #include <net/ip.h>
  19 #include <linux/ipv6.h>
  20 #include <linux/inetdevice.h>
  21 #include <linux/aer.h>
  22 #include <linux/log2.h>
  23 #include <linux/pci.h>
  24
  25 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
  26 MODULE_LICENSE("GPL");
  27 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
  28 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
  29
  30 char qlcnic_driver_name[] = "qlcnic";
  31 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
  32         "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
  33
  34 static int qlcnic_mac_learn;
  35 module_param(qlcnic_mac_learn, int, 0444);
  36 MODULE_PARM_DESC(qlcnic_mac_learn,
  37                  "Mac Filter (0=learning is disabled, 1=Driver learning is enabled, 2=FDB learning is enabled)");
  38
  39 int qlcnic_use_msi = 1;
  40 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled)");
  41 module_param_named(use_msi, qlcnic_use_msi, int, 0444);
  42
  43 int qlcnic_use_msi_x = 1;
  44 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled)");
  45 module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444);
  46
  47 int qlcnic_auto_fw_reset = 1;
  48 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled)");
  49 module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644);
  50
  51 int qlcnic_load_fw_file;
  52 MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file)");
  53 module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);
  54
  55 static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
  56 static void qlcnic_remove(struct pci_dev *pdev);
  57 static int qlcnic_open(struct net_device *netdev);
  58 static int qlcnic_close(struct net_device *netdev);
  59 static void qlcnic_tx_timeout(struct net_device *netdev);
  60 static void qlcnic_attach_work(struct work_struct *work);
  61 static void qlcnic_fwinit_work(struct work_struct *work);
  62 #ifdef CONFIG_NET_POLL_CONTROLLER
  63 static void qlcnic_poll_controller(struct net_device *netdev);
  64 #endif
  65
  66 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
  67 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
  68
  69 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
  70 static irqreturn_t qlcnic_intr(int irq, void *data);
  71 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
  72 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
  73 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data);
  74
  75 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
  76 static int qlcnic_start_firmware(struct qlcnic_adapter *);
  77
  78 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
  79 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
  80 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
  81 static int qlcnic_vlan_rx_add(struct net_device *, __be16, u16);
  82 static int qlcnic_vlan_rx_del(struct net_device *, __be16, u16);
  83
  84 static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
  85 {
  86         struct qlcnic_hardware_context *ahw = adapter->ahw;
  87
  88         if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
  89                 return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
  90         else
  91                 return 1;
  92 }
  93
  94 /*  PCI Device ID Table  */
  95 #define ENTRY(device) \
  96         {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
  97         .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
  98
  99 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
 100         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
 101         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
 102         ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE834X),
 103         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE844X),
 104         ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE844X),
 105         {0,}
 106 };
 107
 108 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
 109
 110
 111 inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
 112 {
 113         writel(tx_ring->producer, tx_ring->crb_cmd_producer);
 114 }
 115
 116 static const u32 msi_tgt_status[8] = {
 117         ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
 118         ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
 119         ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
 120         ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
 121 };
 122
 123 static const u32 qlcnic_reg_tbl[] = {
 124         0x1B20A8,       /* PEG_HALT_STAT1 */
 125         0x1B20AC,       /* PEG_HALT_STAT2 */
 126         0x1B20B0,       /* FW_HEARTBEAT */
 127         0x1B2100,       /* LOCK ID */
 128         0x1B2128,       /* FW_CAPABILITIES */
 129         0x1B2138,       /* drv active */
 130         0x1B2140,       /* dev state */
 131         0x1B2144,       /* drv state */
 132         0x1B2148,       /* drv scratch */
 133         0x1B214C,       /* dev partition info */
 134         0x1B2174,       /* drv idc ver */
 135         0x1B2150,       /* fw version major */
 136         0x1B2154,       /* fw version minor */
 137         0x1B2158,       /* fw version sub */
 138         0x1B219C,       /* npar state */
 139         0x1B21FC,       /* FW_IMG_VALID */
 140         0x1B2250,       /* CMD_PEG_STATE */
 141         0x1B233C,       /* RCV_PEG_STATE */
 142         0x1B23B4,       /* ASIC TEMP */
 143         0x1B216C,       /* FW api */
 144         0x1B2170,       /* drv op mode */
 145         0x13C010,       /* flash lock */
 146         0x13C014,       /* flash unlock */
 147 };
 148
 149 static const struct qlcnic_board_info qlcnic_boards[] = {
 150         { PCI_VENDOR_ID_QLOGIC,
 151           PCI_DEVICE_ID_QLOGIC_QLE844X,
 152           0x0,
 153           0x0,
 154           "8400 series 10GbE Converged Network Adapter (TCP/IP Networking)" },
 155         { PCI_VENDOR_ID_QLOGIC,
 156           PCI_DEVICE_ID_QLOGIC_QLE834X,
 157           PCI_VENDOR_ID_QLOGIC,
 158           0x24e,
 159           "8300 Series Dual Port 10GbE Converged Network Adapter "
 160           "(TCP/IP Networking)" },
 161         { PCI_VENDOR_ID_QLOGIC,
 162           PCI_DEVICE_ID_QLOGIC_QLE834X,
 163           PCI_VENDOR_ID_QLOGIC,
 164           0x243,
 165           "8300 Series Single Port 10GbE Converged Network Adapter "
 166           "(TCP/IP Networking)" },
 167         { PCI_VENDOR_ID_QLOGIC,
 168           PCI_DEVICE_ID_QLOGIC_QLE834X,
 169           PCI_VENDOR_ID_QLOGIC,
 170           0x24a,
 171           "8300 Series Dual Port 10GbE Converged Network Adapter "
 172           "(TCP/IP Networking)" },
 173         { PCI_VENDOR_ID_QLOGIC,
 174           PCI_DEVICE_ID_QLOGIC_QLE834X,
 175           PCI_VENDOR_ID_QLOGIC,
 176           0x246,
 177           "8300 Series Dual Port 10GbE Converged Network Adapter "
 178           "(TCP/IP Networking)" },
 179         { PCI_VENDOR_ID_QLOGIC,
 180           PCI_DEVICE_ID_QLOGIC_QLE834X,
 181           PCI_VENDOR_ID_QLOGIC,
 182           0x252,
 183           "8300 Series Dual Port 10GbE Converged Network Adapter "
 184           "(TCP/IP Networking)" },
 185         { PCI_VENDOR_ID_QLOGIC,
 186           PCI_DEVICE_ID_QLOGIC_QLE834X,
 187           PCI_VENDOR_ID_QLOGIC,
 188           0x26e,
 189           "8300 Series Dual Port 10GbE Converged Network Adapter "
 190           "(TCP/IP Networking)" },
 191         { PCI_VENDOR_ID_QLOGIC,
 192           PCI_DEVICE_ID_QLOGIC_QLE834X,
 193           PCI_VENDOR_ID_QLOGIC,
 194           0x260,
 195           "8300 Series Dual Port 10GbE Converged Network Adapter "
 196           "(TCP/IP Networking)" },
 197         { PCI_VENDOR_ID_QLOGIC,
 198           PCI_DEVICE_ID_QLOGIC_QLE834X,
 199           PCI_VENDOR_ID_QLOGIC,
 200           0x266,
 201           "8300 Series Single Port 10GbE Converged Network Adapter "
 202           "(TCP/IP Networking)" },
 203         { PCI_VENDOR_ID_QLOGIC,
 204           PCI_DEVICE_ID_QLOGIC_QLE834X,
 205           PCI_VENDOR_ID_QLOGIC,
 206           0x269,
 207           "8300 Series Dual Port 10GbE Converged Network Adapter "
 208           "(TCP/IP Networking)" },
 209         { PCI_VENDOR_ID_QLOGIC,
 210           PCI_DEVICE_ID_QLOGIC_QLE834X,
 211           PCI_VENDOR_ID_QLOGIC,
 212           0x271,
 213           "8300 Series Dual Port 10GbE Converged Network Adapter "
 214           "(TCP/IP Networking)" },
 215         { PCI_VENDOR_ID_QLOGIC,
 216           PCI_DEVICE_ID_QLOGIC_QLE834X,
 217           0x0, 0x0, "8300 Series 1/10GbE Controller" },
 218         { PCI_VENDOR_ID_QLOGIC,
 219           PCI_DEVICE_ID_QLOGIC_QLE824X,
 220           PCI_VENDOR_ID_QLOGIC,
 221           0x203,
 222           "8200 Series Single Port 10GbE Converged Network Adapter"
 223           "(TCP/IP Networking)" },
 224         { PCI_VENDOR_ID_QLOGIC,
 225           PCI_DEVICE_ID_QLOGIC_QLE824X,
 226           PCI_VENDOR_ID_QLOGIC,
 227           0x207,
 228           "8200 Series Dual Port 10GbE Converged Network Adapter"
 229           "(TCP/IP Networking)" },
 230         { PCI_VENDOR_ID_QLOGIC,
 231           PCI_DEVICE_ID_QLOGIC_QLE824X,
 232           PCI_VENDOR_ID_QLOGIC,
 233           0x20b,
 234           "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter" },
 235         { PCI_VENDOR_ID_QLOGIC,
 236           PCI_DEVICE_ID_QLOGIC_QLE824X,
 237           PCI_VENDOR_ID_QLOGIC,
 238           0x20c,
 239           "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter" },
 240         { PCI_VENDOR_ID_QLOGIC,
 241           PCI_DEVICE_ID_QLOGIC_QLE824X,
 242           PCI_VENDOR_ID_QLOGIC,
 243           0x20f,
 244           "3200 Series Single Port 10Gb Intelligent Ethernet Adapter" },
 245         { PCI_VENDOR_ID_QLOGIC,
 246           PCI_DEVICE_ID_QLOGIC_QLE824X,
 247           0x103c, 0x3733,
 248           "NC523SFP 10Gb 2-port Server Adapter" },
 249         { PCI_VENDOR_ID_QLOGIC,
 250           PCI_DEVICE_ID_QLOGIC_QLE824X,
 251           0x103c, 0x3346,
 252           "CN1000Q Dual Port Converged Network Adapter" },
 253         { PCI_VENDOR_ID_QLOGIC,
 254           PCI_DEVICE_ID_QLOGIC_QLE824X,
 255           PCI_VENDOR_ID_QLOGIC,
 256           0x210,
 257           "QME8242-k 10GbE Dual Port Mezzanine Card" },
 258         { PCI_VENDOR_ID_QLOGIC,
 259           PCI_DEVICE_ID_QLOGIC_QLE824X,
 260           0x0, 0x0, "cLOM8214 1/10GbE Controller" },
 261 };
 262
 263 #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)
 264
 265 static const
 266 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
 267
 268 int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
 269 {
 270         int size = sizeof(struct qlcnic_host_sds_ring) * count;
 271
 272         recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
 273
 274         return recv_ctx->sds_rings == NULL;
 275 }
 276
 277 void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
 278 {
 279         if (recv_ctx->sds_rings != NULL)
 280                 kfree(recv_ctx->sds_rings);
 281
 282         recv_ctx->sds_rings = NULL;
 283 }
 284
 285 int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
 286 {
 287         struct net_device *netdev = adapter->netdev;
 288         struct pci_dev *pdev = adapter->pdev;
 289         u8 mac_addr[ETH_ALEN];
 290         int ret;
 291
 292         ret = qlcnic_get_mac_address(adapter, mac_addr,
 293                                      adapter->ahw->pci_func);
 294         if (ret)
 295                 return ret;
 296
 297         memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
 298         memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
 299
 300         /* set station address */
 301
 302         if (!is_valid_ether_addr(netdev->dev_addr))
 303                 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
 304                                         netdev->dev_addr);
 305
 306         return 0;
 307 }
 308
 309 static void qlcnic_delete_adapter_mac(struct qlcnic_adapter *adapter)
 310 {
 311         struct qlcnic_mac_list_s *cur;
 312         struct list_head *head;
 313
 314         list_for_each(head, &adapter->mac_list) {
 315                 cur = list_entry(head, struct qlcnic_mac_list_s, list);
 316                 if (!memcmp(adapter->mac_addr, cur->mac_addr, ETH_ALEN)) {
 317                         qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
 318                                                   0, QLCNIC_MAC_DEL);
 319                         list_del(&cur->list);
 320                         kfree(cur);
 321                         return;
 322                 }
 323         }
 324 }
 325
 326 static int qlcnic_set_mac(struct net_device *netdev, void *p)
 327 {
 328         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 329         struct sockaddr *addr = p;
 330
 331         if (qlcnic_sriov_vf_check(adapter))
 332                 return -EINVAL;
 333
 334         if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
 335                 return -EOPNOTSUPP;
 336
 337         if (!is_valid_ether_addr(addr->sa_data))
 338                 return -EINVAL;
 339
 340         if (!memcmp(adapter->mac_addr, addr->sa_data, ETH_ALEN))
 341                 return 0;
 342
 343         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 344                 netif_device_detach(netdev);
 345                 qlcnic_napi_disable(adapter);
 346         }
 347
 348         qlcnic_delete_adapter_mac(adapter);
 349         memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
 350         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 351         qlcnic_set_multi(adapter->netdev);
 352
 353         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 354                 netif_device_attach(netdev);
 355                 qlcnic_napi_enable(adapter);
 356         }
 357         return 0;
 358 }
 359
 360 static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
 361                         struct net_device *netdev, const unsigned char *addr)
 362 {
 363         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 364         int err = -EOPNOTSUPP;
 365
 366         if (!adapter->fdb_mac_learn)
 367                 return ndo_dflt_fdb_del(ndm, tb, netdev, addr);
 368
 369         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 370                 if (is_unicast_ether_addr(addr)) {
 371                         err = dev_uc_del(netdev, addr);
 372                         if (!err)
 373                                 err = qlcnic_nic_del_mac(adapter, addr);
 374                 } else if (is_multicast_ether_addr(addr)) {
 375                         err = dev_mc_del(netdev, addr);
 376                 } else {
 377                         err =  -EINVAL;
 378                 }
 379         }
 380         return err;
 381 }
 382
 383 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 384                         struct net_device *netdev,
 385                         const unsigned char *addr, u16 flags)
 386 {
 387         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 388         int err = 0;
 389
 390         if (!adapter->fdb_mac_learn)
 391                 return ndo_dflt_fdb_add(ndm, tb, netdev, addr, flags);
 392
 393         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 394                 pr_info("%s: FDB e-switch is not enabled\n", __func__);
 395                 return -EOPNOTSUPP;
 396         }
 397
 398         if (ether_addr_equal(addr, adapter->mac_addr))
 399                 return err;
 400
 401         if (is_unicast_ether_addr(addr)) {
 402                 if (netdev_uc_count(netdev) < adapter->ahw->max_uc_count)
 403                         err = dev_uc_add_excl(netdev, addr);
 404                 else
 405                         err = -ENOMEM;
 406         } else if (is_multicast_ether_addr(addr)) {
 407                 err = dev_mc_add_excl(netdev, addr);
 408         } else {
 409                 err = -EINVAL;
 410         }
 411
 412         return err;
 413 }
 414
 415 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
 416                         struct net_device *netdev, int idx)
 417 {
 418         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 419
 420         if (!adapter->fdb_mac_learn)
 421                 return ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
 422
 423         if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
 424                 idx = ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
 425
 426         return idx;
 427 }
 428
 429 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
 430 {
 431         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
 432                 usleep_range(10000, 11000);
 433
 434         if (!adapter->fw_work.work.func)
 435                 return;
 436
 437         cancel_delayed_work_sync(&adapter->fw_work);
 438 }
 439
 440 static int qlcnic_get_phys_port_id(struct net_device *netdev,
 441                                    struct netdev_phys_port_id *ppid)
 442 {
 443         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 444         struct qlcnic_hardware_context *ahw = adapter->ahw;
 445
 446         if (!(adapter->flags & QLCNIC_HAS_PHYS_PORT_ID))
 447                 return -EOPNOTSUPP;
 448
 449         ppid->id_len = sizeof(ahw->phys_port_id);
 450         memcpy(ppid->id, ahw->phys_port_id, ppid->id_len);
 451
 452         return 0;
 453 }
 454
 455 static const struct net_device_ops qlcnic_netdev_ops = {
 456         .ndo_open          = qlcnic_open,
 457         .ndo_stop          = qlcnic_close,
 458         .ndo_start_xmit    = qlcnic_xmit_frame,
 459         .ndo_get_stats     = qlcnic_get_stats,
 460         .ndo_validate_addr = eth_validate_addr,
 461         .ndo_set_rx_mode   = qlcnic_set_multi,
 462         .ndo_set_mac_address    = qlcnic_set_mac,
 463         .ndo_change_mtu    = qlcnic_change_mtu,
 464         .ndo_fix_features  = qlcnic_fix_features,
 465         .ndo_set_features  = qlcnic_set_features,
 466         .ndo_tx_timeout    = qlcnic_tx_timeout,
 467         .ndo_vlan_rx_add_vid    = qlcnic_vlan_rx_add,
 468         .ndo_vlan_rx_kill_vid   = qlcnic_vlan_rx_del,
 469         .ndo_fdb_add            = qlcnic_fdb_add,
 470         .ndo_fdb_del            = qlcnic_fdb_del,
 471         .ndo_fdb_dump           = qlcnic_fdb_dump,
 472         .ndo_get_phys_port_id   = qlcnic_get_phys_port_id,
 473 #ifdef CONFIG_NET_POLL_CONTROLLER
 474         .ndo_poll_controller = qlcnic_poll_controller,
 475 #endif
 476 #ifdef CONFIG_QLCNIC_SRIOV
 477         .ndo_set_vf_mac         = qlcnic_sriov_set_vf_mac,
 478         .ndo_set_vf_tx_rate     = qlcnic_sriov_set_vf_tx_rate,
 479         .ndo_get_vf_config      = qlcnic_sriov_get_vf_config,
 480         .ndo_set_vf_vlan        = qlcnic_sriov_set_vf_vlan,
 481         .ndo_set_vf_spoofchk    = qlcnic_sriov_set_vf_spoofchk,
 482 #endif
 483 };
 484
 485 static const struct net_device_ops qlcnic_netdev_failed_ops = {
 486         .ndo_open          = qlcnic_open,
 487 };
 488
 489 static struct qlcnic_nic_template qlcnic_ops = {
 490         .config_bridged_mode    = qlcnic_config_bridged_mode,
 491         .config_led             = qlcnic_82xx_config_led,
 492         .start_firmware         = qlcnic_82xx_start_firmware,
 493         .request_reset          = qlcnic_82xx_dev_request_reset,
 494         .cancel_idc_work        = qlcnic_82xx_cancel_idc_work,
 495         .napi_add               = qlcnic_82xx_napi_add,
 496         .napi_del               = qlcnic_82xx_napi_del,
 497         .config_ipaddr          = qlcnic_82xx_config_ipaddr,
 498         .shutdown               = qlcnic_82xx_shutdown,
 499         .resume                 = qlcnic_82xx_resume,
 500         .clear_legacy_intr      = qlcnic_82xx_clear_legacy_intr,
 501 };
 502
 503 struct qlcnic_nic_template qlcnic_vf_ops = {
 504         .config_bridged_mode    = qlcnicvf_config_bridged_mode,
 505         .config_led             = qlcnicvf_config_led,
 506         .start_firmware         = qlcnicvf_start_firmware
 507 };
 508
 509 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
 510         .read_crb                       = qlcnic_82xx_read_crb,
 511         .write_crb                      = qlcnic_82xx_write_crb,
 512         .read_reg                       = qlcnic_82xx_hw_read_wx_2M,
 513         .write_reg                      = qlcnic_82xx_hw_write_wx_2M,
 514         .get_mac_address                = qlcnic_82xx_get_mac_address,
 515         .setup_intr                     = qlcnic_82xx_setup_intr,
 516         .alloc_mbx_args                 = qlcnic_82xx_alloc_mbx_args,
 517         .mbx_cmd                        = qlcnic_82xx_issue_cmd,
 518         .get_func_no                    = qlcnic_82xx_get_func_no,
 519         .api_lock                       = qlcnic_82xx_api_lock,
 520         .api_unlock                     = qlcnic_82xx_api_unlock,
 521         .add_sysfs                      = qlcnic_82xx_add_sysfs,
 522         .remove_sysfs                   = qlcnic_82xx_remove_sysfs,
 523         .process_lb_rcv_ring_diag       = qlcnic_82xx_process_rcv_ring_diag,
 524         .create_rx_ctx                  = qlcnic_82xx_fw_cmd_create_rx_ctx,
 525         .create_tx_ctx                  = qlcnic_82xx_fw_cmd_create_tx_ctx,
 526         .del_rx_ctx                     = qlcnic_82xx_fw_cmd_del_rx_ctx,
 527         .del_tx_ctx                     = qlcnic_82xx_fw_cmd_del_tx_ctx,
 528         .setup_link_event               = qlcnic_82xx_linkevent_request,
 529         .get_nic_info                   = qlcnic_82xx_get_nic_info,
 530         .get_pci_info                   = qlcnic_82xx_get_pci_info,
 531         .set_nic_info                   = qlcnic_82xx_set_nic_info,
 532         .change_macvlan                 = qlcnic_82xx_sre_macaddr_change,
 533         .napi_enable                    = qlcnic_82xx_napi_enable,
 534         .napi_disable                   = qlcnic_82xx_napi_disable,
 535         .config_intr_coal               = qlcnic_82xx_config_intr_coalesce,
 536         .config_rss                     = qlcnic_82xx_config_rss,
 537         .config_hw_lro                  = qlcnic_82xx_config_hw_lro,
 538         .config_loopback                = qlcnic_82xx_set_lb_mode,
 539         .clear_loopback                 = qlcnic_82xx_clear_lb_mode,
 540         .config_promisc_mode            = qlcnic_82xx_nic_set_promisc,
 541         .change_l2_filter               = qlcnic_82xx_change_filter,
 542         .get_board_info                 = qlcnic_82xx_get_board_info,
 543         .set_mac_filter_count           = qlcnic_82xx_set_mac_filter_count,
 544         .free_mac_list                  = qlcnic_82xx_free_mac_list,
 545         .read_phys_port_id              = qlcnic_82xx_read_phys_port_id,
 546         .io_error_detected              = qlcnic_82xx_io_error_detected,
 547         .io_slot_reset                  = qlcnic_82xx_io_slot_reset,
 548         .io_resume                      = qlcnic_82xx_io_resume,
 549 };
 550
 551 static void qlcnic_get_multiq_capability(struct qlcnic_adapter *adapter)
 552 {
 553         struct qlcnic_hardware_context *ahw = adapter->ahw;
 554         int num_tx_q;
 555
 556         if (ahw->msix_supported &&
 557             (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_MULTI_TX)) {
 558                 num_tx_q = min_t(int, QLCNIC_DEF_NUM_TX_RINGS,
 559                                  num_online_cpus());
 560                 if (num_tx_q > 1) {
 561                         test_and_set_bit(__QLCNIC_MULTI_TX_UNIQUE,
 562                                          &adapter->state);
 563                         adapter->max_drv_tx_rings = num_tx_q;
 564                 }
 565         } else {
 566                 adapter->max_drv_tx_rings = 1;
 567         }
 568 }
 569
 570 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 571 {
 572         struct pci_dev *pdev = adapter->pdev;
 573         int max_tx_rings, max_sds_rings, tx_vector;
 574         int err = -1, i;
 575
 576         if (adapter->flags & QLCNIC_TX_INTR_SHARED) {
 577                 max_tx_rings = 0;
 578                 tx_vector = 0;
 579         } else {
 580                 max_tx_rings = adapter->max_drv_tx_rings;
 581                 tx_vector = 1;
 582         }
 583
 584         if (!adapter->msix_entries) {
 585                 adapter->msix_entries = kcalloc(num_msix,
 586                                                 sizeof(struct msix_entry),
 587                                                 GFP_KERNEL);
 588                 if (!adapter->msix_entries)
 589                         return -ENOMEM;
 590         }
 591
 592         adapter->max_sds_rings = 1;
 593         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 594
 595         if (adapter->ahw->msix_supported) {
 596  enable_msix:
 597                 for (i = 0; i < num_msix; i++)
 598                         adapter->msix_entries[i].entry = i;
 599                 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
 600                 if (err == 0) {
 601                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 602                         if (qlcnic_83xx_check(adapter)) {
 603                                 adapter->ahw->num_msix = num_msix;
 604                                 /* subtract mail box and tx ring vectors */
 605                                 adapter->max_sds_rings = num_msix -
 606                                                          max_tx_rings - 1;
 607                         } else {
 608                                 adapter->ahw->num_msix = num_msix;
 609                                 if (qlcnic_check_multi_tx(adapter) &&
 610                                     !adapter->ahw->diag_test &&
 611                                     (adapter->max_drv_tx_rings > 1))
 612                                         max_sds_rings = num_msix - max_tx_rings;
 613                                 else
 614                                         max_sds_rings = num_msix;
 615
 616                                 adapter->max_sds_rings = max_sds_rings;
 617                         }
 618                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 619                         return err;
 620                 } else if (err > 0) {
 621                         dev_info(&pdev->dev,
 622                                  "Unable to allocate %d MSI-X interrupt vectors\n",
 623                                  num_msix);
 624                         if (qlcnic_83xx_check(adapter)) {
 625                                 if (err < (QLC_83XX_MINIMUM_VECTOR - tx_vector))
 626                                         return err;
 627                                 err -= (max_tx_rings + 1);
 628                                 num_msix = rounddown_pow_of_two(err);
 629                                 num_msix += (max_tx_rings + 1);
 630                         } else {
 631                                 num_msix = rounddown_pow_of_two(err);
 632                                 if (qlcnic_check_multi_tx(adapter))
 633                                         num_msix += max_tx_rings;
 634                         }
 635
 636                         if (num_msix) {
 637                                 dev_info(&pdev->dev,
 638                                          "Trying to allocate %d MSI-X interrupt vectors\n",
 639                                          num_msix);
 640                                 goto enable_msix;
 641                         }
 642                 } else {
 643                         dev_info(&pdev->dev,
 644                                  "Unable to allocate %d MSI-X interrupt vectors\n",
 645                                  num_msix);
 646                 }
 647         }
 648
 649         return err;
 650 }
 651
 652 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
 653 {
 654         int err = 0;
 655         u32 offset, mask_reg;
 656         const struct qlcnic_legacy_intr_set *legacy_intrp;
 657         struct qlcnic_hardware_context *ahw = adapter->ahw;
 658         struct pci_dev *pdev = adapter->pdev;
 659
 660         if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
 661                 adapter->flags |= QLCNIC_MSI_ENABLED;
 662                 offset = msi_tgt_status[adapter->ahw->pci_func];
 663                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
 664                                                             offset);
 665                 dev_info(&pdev->dev, "using msi interrupts\n");
 666                 adapter->msix_entries[0].vector = pdev->irq;
 667                 return err;
 668         }
 669
 670         if (qlcnic_use_msi || qlcnic_use_msi_x)
 671                 return -EOPNOTSUPP;
 672
 673         legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
 674         adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
 675         offset = legacy_intrp->tgt_status_reg;
 676         adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
 677         mask_reg = legacy_intrp->tgt_mask_reg;
 678         adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
 679         adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
 680         adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
 681         dev_info(&pdev->dev, "using legacy interrupts\n");
 682         adapter->msix_entries[0].vector = pdev->irq;
 683         return err;
 684 }
 685
 686 int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter, u8 num_intr, int txq)
 687 {
 688         struct qlcnic_hardware_context *ahw = adapter->ahw;
 689         int num_msix, err = 0;
 690
 691         if (!num_intr)
 692                 num_intr = QLCNIC_DEF_NUM_STS_DESC_RINGS;
 693
 694         if (ahw->msix_supported) {
 695                 num_msix = rounddown_pow_of_two(min_t(int, num_online_cpus(),
 696                                                 num_intr));
 697                 if (qlcnic_check_multi_tx(adapter)) {
 698                         if (txq)
 699                                 adapter->max_drv_tx_rings = txq;
 700                         num_msix += adapter->max_drv_tx_rings;
 701                 }
 702         } else {
 703                 num_msix = 1;
 704         }
 705
 706         err = qlcnic_enable_msix(adapter, num_msix);
 707         if (err == -ENOMEM)
 708                 return err;
 709
 710         if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
 711                 qlcnic_disable_multi_tx(adapter);
 712
 713                 err = qlcnic_enable_msi_legacy(adapter);
 714                 if (!err)
 715                         return err;
 716         }
 717
 718         return 0;
 719 }
 720
 721 int qlcnic_82xx_mq_intrpt(struct qlcnic_adapter *adapter, int op_type)
 722 {
 723         struct qlcnic_hardware_context *ahw = adapter->ahw;
 724         int err, i;
 725
 726         if (qlcnic_check_multi_tx(adapter) &&
 727             !ahw->diag_test &&
 728             (adapter->flags & QLCNIC_MSIX_ENABLED)) {
 729                 ahw->intr_tbl = vzalloc(ahw->num_msix *
 730                                         sizeof(struct qlcnic_intrpt_config));
 731                 if (!ahw->intr_tbl)
 732                         return -ENOMEM;
 733
 734                 for (i = 0; i < ahw->num_msix; i++) {
 735                         ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
 736                         ahw->intr_tbl[i].id = i;
 737                         ahw->intr_tbl[i].src = 0;
 738                 }
 739
 740                 err = qlcnic_82xx_config_intrpt(adapter, 1);
 741                 if (err)
 742                         dev_err(&adapter->pdev->dev,
 743                                 "Failed to configure Interrupt for %d vector\n",
 744                                 ahw->num_msix);
 745                 return err;
 746         }
 747
 748         return 0;
 749 }
 750
 751 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 752 {
 753         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 754                 pci_disable_msix(adapter->pdev);
 755         if (adapter->flags & QLCNIC_MSI_ENABLED)
 756                 pci_disable_msi(adapter->pdev);
 757
 758         kfree(adapter->msix_entries);
 759         adapter->msix_entries = NULL;
 760
 761         if (adapter->ahw->intr_tbl) {
 762                 vfree(adapter->ahw->intr_tbl);
 763                 adapter->ahw->intr_tbl = NULL;
 764         }
 765 }
 766
 767 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
 768 {
 769         if (ahw->pci_base0 != NULL)
 770                 iounmap(ahw->pci_base0);
 771 }
 772
 773 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
 774 {
 775         struct qlcnic_pci_info *pci_info;
 776         int ret;
 777
 778         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 779                 switch (adapter->ahw->port_type) {
 780                 case QLCNIC_GBE:
 781                         adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_GBE_PORTS;
 782                         break;
 783                 case QLCNIC_XGBE:
 784                         adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_XG_PORTS;
 785                         break;
 786                 }
 787                 return 0;
 788         }
 789
 790         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
 791                 return 0;
 792
 793         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 794         if (!pci_info)
 795                 return -ENOMEM;
 796
 797         ret = qlcnic_get_pci_info(adapter, pci_info);
 798         kfree(pci_info);
 799         return ret;
 800 }
 801
 802 static bool qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter *adapter)
 803 {
 804         bool ret = false;
 805
 806         if (qlcnic_84xx_check(adapter)) {
 807                 ret = true;
 808         } else if (qlcnic_83xx_check(adapter)) {
 809                 if (adapter->ahw->extra_capability[0] &
 810                     QLCNIC_FW_CAPABILITY_2_PER_PORT_ESWITCH_CFG)
 811                         ret = true;
 812                 else
 813                         ret = false;
 814         }
 815
 816         return ret;
 817 }
 818
 819 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 820 {
 821         struct qlcnic_pci_info *pci_info;
 822         int i, ret = 0, j = 0;
 823         u16 act_pci_func;
 824         u8 pfn;
 825
 826         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 827         if (!pci_info)
 828                 return -ENOMEM;
 829
 830         ret = qlcnic_get_pci_info(adapter, pci_info);
 831         if (ret)
 832                 goto err_pci_info;
 833
 834         act_pci_func = adapter->ahw->act_pci_func;
 835
 836         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
 837                                  act_pci_func, GFP_KERNEL);
 838         if (!adapter->npars) {
 839                 ret = -ENOMEM;
 840                 goto err_pci_info;
 841         }
 842
 843         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
 844                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
 845         if (!adapter->eswitch) {
 846                 ret = -ENOMEM;
 847                 goto err_npars;
 848         }
 849
 850         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 851                 pfn = pci_info[i].id;
 852
 853                 if (pfn >= QLCNIC_MAX_PCI_FUNC) {
 854                         ret = QL_STATUS_INVALID_PARAM;
 855                         goto err_eswitch;
 856                 }
 857
 858                 if (!pci_info[i].active ||
 859                     (pci_info[i].type != QLCNIC_TYPE_NIC))
 860                         continue;
 861
 862                 if (qlcnic_port_eswitch_cfg_capability(adapter)) {
 863                         if (!qlcnic_83xx_enable_port_eswitch(adapter, pfn))
 864                                 adapter->npars[j].eswitch_status = true;
 865                         else
 866                                 continue;
 867                 } else {
 868                         adapter->npars[j].eswitch_status = true;
 869                 }
 870
 871                 adapter->npars[j].pci_func = pfn;
 872                 adapter->npars[j].active = (u8)pci_info[i].active;
 873                 adapter->npars[j].type = (u8)pci_info[i].type;
 874                 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
 875                 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
 876                 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
 877
 878                 j++;
 879         }
 880
 881         if (qlcnic_82xx_check(adapter)) {
 882                 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
 883                         adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
 884         } else if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
 885                 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
 886                         qlcnic_enable_eswitch(adapter, i, 1);
 887         }
 888
 889         kfree(pci_info);
 890         return 0;
 891
 892 err_eswitch:
 893         kfree(adapter->eswitch);
 894         adapter->eswitch = NULL;
 895 err_npars:
 896         kfree(adapter->npars);
 897         adapter->npars = NULL;
 898 err_pci_info:
 899         kfree(pci_info);
 900
 901         return ret;
 902 }
 903
 904 static int
 905 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
 906 {
 907         u8 id;
 908         int ret;
 909         u32 data = QLCNIC_MGMT_FUNC;
 910         struct qlcnic_hardware_context *ahw = adapter->ahw;
 911
 912         ret = qlcnic_api_lock(adapter);
 913         if (ret)
 914                 goto err_lock;
 915
 916         id = ahw->pci_func;
 917         data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 918         data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
 919                QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
 920         QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
 921         qlcnic_api_unlock(adapter);
 922 err_lock:
 923         return ret;
 924 }
 925
 926 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
 927                             const struct pci_device_id *ent)
 928 {
 929         u32 op_mode, priv_level;
 930
 931         /* Determine FW API version */
 932         adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
 933                                                            QLCNIC_FW_API);
 934
 935         /* Find PCI function number */
 936         qlcnic_get_func_no(adapter);
 937
 938         /* Determine function privilege level */
 939         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 940         if (op_mode == QLC_DEV_DRV_DEFAULT)
 941                 priv_level = QLCNIC_MGMT_FUNC;
 942         else
 943                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
 944
 945         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
 946                 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
 947                 dev_info(&adapter->pdev->dev,
 948                         "HAL Version: %d Non Privileged function\n",
 949                          adapter->ahw->fw_hal_version);
 950                 adapter->nic_ops = &qlcnic_vf_ops;
 951         } else
 952                 adapter->nic_ops = &qlcnic_ops;
 953 }
 954
 955 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
 956 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
 957 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
 958 {
 959         switch (dev_id) {
 960         case PCI_DEVICE_ID_QLOGIC_QLE824X:
 961                 *bar = QLCNIC_82XX_BAR0_LENGTH;
 962                 break;
 963         case PCI_DEVICE_ID_QLOGIC_QLE834X:
 964         case PCI_DEVICE_ID_QLOGIC_QLE844X:
 965         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
 966         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
 967                 *bar = QLCNIC_83XX_BAR0_LENGTH;
 968                 break;
 969         default:
 970                 *bar = 0;
 971         }
 972 }
 973
 974 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
 975                                 struct qlcnic_hardware_context *ahw)
 976 {
 977         u32 offset;
 978         void __iomem *mem_ptr0 = NULL;
 979         unsigned long mem_len, pci_len0 = 0, bar0_len;
 980
 981         /* remap phys address */
 982         mem_len = pci_resource_len(pdev, 0);
 983
 984         qlcnic_get_bar_length(pdev->device, &bar0_len);
 985         if (mem_len >= bar0_len) {
 986
 987                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
 988                 if (mem_ptr0 == NULL) {
 989                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
 990                         return -EIO;
 991                 }
 992                 pci_len0 = mem_len;
 993         } else {
 994                 return -EIO;
 995         }
 996
 997         dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
 998
 999         ahw->pci_base0 = mem_ptr0;
1000         ahw->pci_len0 = pci_len0;
1001         offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
1002         qlcnic_get_ioaddr(ahw, offset);
1003
1004         return 0;
1005 }
1006
1007 static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
1008                                          int index)
1009 {
1010         struct pci_dev *pdev = adapter->pdev;
1011         unsigned short subsystem_vendor;
1012         bool ret = true;
1013
1014         subsystem_vendor = pdev->subsystem_vendor;
1015
1016         if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
1017             pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1018                 if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
1019                     qlcnic_boards[index].sub_device == pdev->subsystem_device)
1020                         ret = true;
1021                 else
1022                         ret = false;
1023         }
1024
1025         return ret;
1026 }
1027
1028 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
1029 {
1030         struct pci_dev *pdev = adapter->pdev;
1031         int i, found = 0;
1032
1033         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1034                 if (qlcnic_boards[i].vendor == pdev->vendor &&
1035                     qlcnic_boards[i].device == pdev->device &&
1036                     qlcnic_validate_subsystem_id(adapter, i)) {
1037                         found = 1;
1038                         break;
1039                 }
1040         }
1041
1042         if (!found)
1043                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
1044         else
1045                 sprintf(name, "%pM: %s" , adapter->mac_addr,
1046                         qlcnic_boards[i].short_name);
1047 }
1048
1049 static void
1050 qlcnic_check_options(struct qlcnic_adapter *adapter)
1051 {
1052         int err;
1053         u32 fw_major, fw_minor, fw_build, prev_fw_version;
1054         struct pci_dev *pdev = adapter->pdev;
1055         struct qlcnic_hardware_context *ahw = adapter->ahw;
1056         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
1057
1058         prev_fw_version = adapter->fw_version;
1059
1060         fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
1061         fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
1062         fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
1063
1064         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
1065
1066         err = qlcnic_get_board_info(adapter);
1067         if (err) {
1068                 dev_err(&pdev->dev, "Error getting board config info.\n");
1069                 return;
1070         }
1071         if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
1072                 if (fw_dump->tmpl_hdr == NULL ||
1073                                 adapter->fw_version > prev_fw_version) {
1074                         if (fw_dump->tmpl_hdr)
1075                                 vfree(fw_dump->tmpl_hdr);
1076                         if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1077                                 dev_info(&pdev->dev,
1078                                         "Supports FW dump capability\n");
1079                 }
1080         }
1081
1082         dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
1083                  QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
1084
1085         if (adapter->ahw->port_type == QLCNIC_XGBE) {
1086                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1087                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
1088                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
1089                 } else {
1090                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
1091                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
1092                 }
1093
1094                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1095                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1096
1097         } else if (adapter->ahw->port_type == QLCNIC_GBE) {
1098                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
1099                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1100                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1101                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
1102         }
1103
1104         adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
1105
1106         adapter->num_txd = MAX_CMD_DESCRIPTORS;
1107
1108         adapter->max_rds_rings = MAX_RDS_RINGS;
1109 }
1110
1111 static int
1112 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
1113 {
1114         struct qlcnic_info nic_info;
1115         int err = 0;
1116
1117         memset(&nic_info, 0, sizeof(struct qlcnic_info));
1118         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
1119         if (err)
1120                 return err;
1121
1122         adapter->ahw->physical_port = (u8)nic_info.phys_port;
1123         adapter->ahw->switch_mode = nic_info.switch_mode;
1124         adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
1125         adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
1126         adapter->ahw->capabilities = nic_info.capabilities;
1127
1128         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1129                 u32 temp;
1130                 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
1131                 if (err == -EIO)
1132                         return err;
1133                 adapter->ahw->extra_capability[0] = temp;
1134         } else {
1135                 adapter->ahw->extra_capability[0] = 0;
1136         }
1137
1138         adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1139         adapter->ahw->max_mtu = nic_info.max_mtu;
1140
1141         /* Disable NPAR for 83XX */
1142         if (qlcnic_83xx_check(adapter))
1143                 return err;
1144
1145         if (adapter->ahw->capabilities & BIT_6)
1146                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1147         else
1148                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1149
1150         return err;
1151 }
1152
1153 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1154                             struct qlcnic_esw_func_cfg *esw_cfg)
1155 {
1156         if (esw_cfg->discard_tagged)
1157                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1158         else
1159                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1160
1161         if (esw_cfg->vlan_id) {
1162                 adapter->rx_pvid = esw_cfg->vlan_id;
1163                 adapter->tx_pvid = esw_cfg->vlan_id;
1164         } else {
1165                 adapter->rx_pvid = 0;
1166                 adapter->tx_pvid = 0;
1167         }
1168 }
1169
1170 static int
1171 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1172 {
1173         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1174         int err;
1175
1176         if (qlcnic_sriov_vf_check(adapter)) {
1177                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1178                 if (err) {
1179                         netdev_err(netdev,
1180                                    "Cannot add VLAN filter for VLAN id %d, err=%d",
1181                                    vid, err);
1182                         return err;
1183                 }
1184         }
1185
1186         set_bit(vid, adapter->vlans);
1187         return 0;
1188 }
1189
1190 static int
1191 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1192 {
1193         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1194         int err;
1195
1196         if (qlcnic_sriov_vf_check(adapter)) {
1197                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1198                 if (err) {
1199                         netdev_err(netdev,
1200                                    "Cannot delete VLAN filter for VLAN id %d, err=%d",
1201                                    vid, err);
1202                         return err;
1203                 }
1204         }
1205
1206         qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1207         clear_bit(vid, adapter->vlans);
1208         return 0;
1209 }
1210
1211 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1212                                       struct qlcnic_esw_func_cfg *esw_cfg)
1213 {
1214         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1215                                 QLCNIC_PROMISC_DISABLED);
1216
1217         if (esw_cfg->mac_anti_spoof)
1218                 adapter->flags |= QLCNIC_MACSPOOF;
1219
1220         if (!esw_cfg->mac_override)
1221                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1222
1223         if (!esw_cfg->promisc_mode)
1224                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1225 }
1226
1227 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1228 {
1229         struct qlcnic_esw_func_cfg esw_cfg;
1230
1231         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1232                 return 0;
1233
1234         esw_cfg.pci_func = adapter->ahw->pci_func;
1235         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1236                         return -EIO;
1237         qlcnic_set_vlan_config(adapter, &esw_cfg);
1238         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1239         qlcnic_set_netdev_features(adapter, &esw_cfg);
1240
1241         return 0;
1242 }
1243
1244 void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1245                                 struct qlcnic_esw_func_cfg *esw_cfg)
1246 {
1247         struct net_device *netdev = adapter->netdev;
1248
1249         if (qlcnic_83xx_check(adapter))
1250                 return;
1251
1252         adapter->offload_flags = esw_cfg->offload_flags;
1253         adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1254         netdev_update_features(netdev);
1255         adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1256 }
1257
1258 static int
1259 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1260 {
1261         u32 op_mode, priv_level;
1262         int err = 0;
1263
1264         err = qlcnic_initialize_nic(adapter);
1265         if (err)
1266                 return err;
1267
1268         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1269                 return 0;
1270
1271         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1272         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1273
1274         if (op_mode == QLC_DEV_DRV_DEFAULT)
1275                 priv_level = QLCNIC_MGMT_FUNC;
1276         else
1277                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1278
1279         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1280                 if (priv_level == QLCNIC_MGMT_FUNC) {
1281                         adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1282                         err = qlcnic_init_pci_info(adapter);
1283                         if (err)
1284                                 return err;
1285                         /* Set privilege level for other functions */
1286                         qlcnic_set_function_modes(adapter);
1287                         dev_info(&adapter->pdev->dev,
1288                                 "HAL Version: %d, Management function\n",
1289                                  adapter->ahw->fw_hal_version);
1290                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1291                         adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1292                         dev_info(&adapter->pdev->dev,
1293                                 "HAL Version: %d, Privileged function\n",
1294                                  adapter->ahw->fw_hal_version);
1295                 }
1296         }
1297
1298         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1299
1300         return err;
1301 }
1302
1303 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1304 {
1305         struct qlcnic_esw_func_cfg esw_cfg;
1306         struct qlcnic_npar_info *npar;
1307         u8 i;
1308
1309         if (adapter->need_fw_reset)
1310                 return 0;
1311
1312         for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1313                 if (!adapter->npars[i].eswitch_status)
1314                         continue;
1315
1316                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1317                 esw_cfg.pci_func = adapter->npars[i].pci_func;
1318                 esw_cfg.mac_override = BIT_0;
1319                 esw_cfg.promisc_mode = BIT_0;
1320                 if (qlcnic_82xx_check(adapter)) {
1321                         esw_cfg.offload_flags = BIT_0;
1322                         if (QLCNIC_IS_TSO_CAPABLE(adapter))
1323                                 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1324                 }
1325                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1326                         return -EIO;
1327                 npar = &adapter->npars[i];
1328                 npar->pvid = esw_cfg.vlan_id;
1329                 npar->mac_override = esw_cfg.mac_override;
1330                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1331                 npar->discard_tagged = esw_cfg.discard_tagged;
1332                 npar->promisc_mode = esw_cfg.promisc_mode;
1333                 npar->offload_flags = esw_cfg.offload_flags;
1334         }
1335
1336         return 0;
1337 }
1338
1339
1340 static int
1341 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1342                         struct qlcnic_npar_info *npar, int pci_func)
1343 {
1344         struct qlcnic_esw_func_cfg esw_cfg;
1345         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1346         esw_cfg.pci_func = pci_func;
1347         esw_cfg.vlan_id = npar->pvid;
1348         esw_cfg.mac_override = npar->mac_override;
1349         esw_cfg.discard_tagged = npar->discard_tagged;
1350         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1351         esw_cfg.offload_flags = npar->offload_flags;
1352         esw_cfg.promisc_mode = npar->promisc_mode;
1353         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1354                 return -EIO;
1355
1356         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1357         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1358                 return -EIO;
1359
1360         return 0;
1361 }
1362
1363 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1364 {
1365         int i, err;
1366         struct qlcnic_npar_info *npar;
1367         struct qlcnic_info nic_info;
1368         u8 pci_func;
1369
1370         if (qlcnic_82xx_check(adapter))
1371                 if (!adapter->need_fw_reset)
1372                         return 0;
1373
1374         /* Set the NPAR config data after FW reset */
1375         for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1376                 npar = &adapter->npars[i];
1377                 pci_func = npar->pci_func;
1378                 if (!adapter->npars[i].eswitch_status)
1379                         continue;
1380
1381                 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1382                 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1383                 if (err)
1384                         return err;
1385                 nic_info.min_tx_bw = npar->min_bw;
1386                 nic_info.max_tx_bw = npar->max_bw;
1387                 err = qlcnic_set_nic_info(adapter, &nic_info);
1388                 if (err)
1389                         return err;
1390
1391                 if (npar->enable_pm) {
1392                         err = qlcnic_config_port_mirroring(adapter,
1393                                                            npar->dest_npar, 1,
1394                                                            pci_func);
1395                         if (err)
1396                                 return err;
1397                 }
1398                 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1399                 if (err)
1400                         return err;
1401         }
1402         return 0;
1403 }
1404
1405 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1406 {
1407         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1408         u32 npar_state;
1409
1410         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1411                 return 0;
1412
1413         npar_state = QLC_SHARED_REG_RD32(adapter,
1414                                          QLCNIC_CRB_DEV_NPAR_STATE);
1415         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1416                 msleep(1000);
1417                 npar_state = QLC_SHARED_REG_RD32(adapter,
1418                                                  QLCNIC_CRB_DEV_NPAR_STATE);
1419         }
1420         if (!npar_opt_timeo) {
1421                 dev_err(&adapter->pdev->dev,
1422                         "Waiting for NPAR state to operational timeout\n");
1423                 return -EIO;
1424         }
1425         return 0;
1426 }
1427
1428 static int
1429 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1430 {
1431         int err;
1432
1433         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1434             adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1435                 return 0;
1436
1437         err = qlcnic_set_default_offload_settings(adapter);
1438         if (err)
1439                 return err;
1440
1441         err = qlcnic_reset_npar_config(adapter);
1442         if (err)
1443                 return err;
1444
1445         qlcnic_dev_set_npar_ready(adapter);
1446
1447         return err;
1448 }
1449
1450 int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1451 {
1452         int err;
1453
1454         err = qlcnic_can_start_firmware(adapter);
1455         if (err < 0)
1456                 return err;
1457         else if (!err)
1458                 goto check_fw_status;
1459
1460         if (qlcnic_load_fw_file)
1461                 qlcnic_request_firmware(adapter);
1462         else {
1463                 err = qlcnic_check_flash_fw_ver(adapter);
1464                 if (err)
1465                         goto err_out;
1466
1467                 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1468         }
1469
1470         err = qlcnic_need_fw_reset(adapter);
1471         if (err == 0)
1472                 goto check_fw_status;
1473
1474         err = qlcnic_pinit_from_rom(adapter);
1475         if (err)
1476                 goto err_out;
1477
1478         err = qlcnic_load_firmware(adapter);
1479         if (err)
1480                 goto err_out;
1481
1482         qlcnic_release_firmware(adapter);
1483         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1484
1485 check_fw_status:
1486         err = qlcnic_check_fw_status(adapter);
1487         if (err)
1488                 goto err_out;
1489
1490         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1491         qlcnic_idc_debug_info(adapter, 1);
1492         err = qlcnic_check_eswitch_mode(adapter);
1493         if (err) {
1494                 dev_err(&adapter->pdev->dev,
1495                         "Memory allocation failed for eswitch\n");
1496                 goto err_out;
1497         }
1498         err = qlcnic_set_mgmt_operations(adapter);
1499         if (err)
1500                 goto err_out;
1501
1502         qlcnic_check_options(adapter);
1503         adapter->need_fw_reset = 0;
1504
1505         qlcnic_release_firmware(adapter);
1506         return 0;
1507
1508 err_out:
1509         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1510         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1511
1512         qlcnic_release_firmware(adapter);
1513         return err;
1514 }
1515
1516 static int
1517 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1518 {
1519         irq_handler_t handler;
1520         struct qlcnic_host_sds_ring *sds_ring;
1521         struct qlcnic_host_tx_ring *tx_ring;
1522         int err, ring, num_sds_rings;
1523
1524         unsigned long flags = 0;
1525         struct net_device *netdev = adapter->netdev;
1526         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1527
1528         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1529                 if (qlcnic_82xx_check(adapter))
1530                         handler = qlcnic_tmp_intr;
1531                 else
1532                         handler = qlcnic_83xx_tmp_intr;
1533                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1534                         flags |= IRQF_SHARED;
1535
1536         } else {
1537                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1538                         handler = qlcnic_msix_intr;
1539                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1540                         handler = qlcnic_msi_intr;
1541                 else {
1542                         flags |= IRQF_SHARED;
1543                         if (qlcnic_82xx_check(adapter))
1544                                 handler = qlcnic_intr;
1545                         else
1546                                 handler = qlcnic_83xx_intr;
1547                 }
1548         }
1549         adapter->irq = netdev->irq;
1550
1551         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1552                 if (qlcnic_82xx_check(adapter) ||
1553                     (qlcnic_83xx_check(adapter) &&
1554                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1555                         num_sds_rings = adapter->max_sds_rings;
1556                         for (ring = 0; ring < num_sds_rings; ring++) {
1557                                 sds_ring = &recv_ctx->sds_rings[ring];
1558                                 if (qlcnic_82xx_check(adapter) &&
1559                                     !qlcnic_check_multi_tx(adapter) &&
1560                                     (ring == (num_sds_rings - 1))) {
1561                                         if (!(adapter->flags &
1562                                               QLCNIC_MSIX_ENABLED))
1563                                                 snprintf(sds_ring->name,
1564                                                          sizeof(sds_ring->name),
1565                                                          "qlcnic");
1566                                         else
1567                                                 snprintf(sds_ring->name,
1568                                                          sizeof(sds_ring->name),
1569                                                          "%s-tx-0-rx-%d",
1570                                                          netdev->name, ring);
1571                                 } else {
1572                                         snprintf(sds_ring->name,
1573                                                  sizeof(sds_ring->name),
1574                                                  "%s-rx-%d",
1575                                                  netdev->name, ring);
1576                                 }
1577                                 err = request_irq(sds_ring->irq, handler, flags,
1578                                                   sds_ring->name, sds_ring);
1579                                 if (err)
1580                                         return err;
1581                         }
1582                 }
1583                 if ((qlcnic_82xx_check(adapter) &&
1584                      qlcnic_check_multi_tx(adapter)) ||
1585                     (qlcnic_83xx_check(adapter) &&
1586                      (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1587                      !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
1588                         handler = qlcnic_msix_tx_intr;
1589                         for (ring = 0; ring < adapter->max_drv_tx_rings;
1590                              ring++) {
1591                                 tx_ring = &adapter->tx_ring[ring];
1592                                 snprintf(tx_ring->name, sizeof(tx_ring->name),
1593                                          "%s-tx-%d", netdev->name, ring);
1594                                 err = request_irq(tx_ring->irq, handler, flags,
1595                                                   tx_ring->name, tx_ring);
1596                                 if (err)
1597                                         return err;
1598                         }
1599                 }
1600         }
1601         return 0;
1602 }
1603
1604 static void
1605 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1606 {
1607         int ring;
1608         struct qlcnic_host_sds_ring *sds_ring;
1609         struct qlcnic_host_tx_ring *tx_ring;
1610
1611         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1612
1613         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1614                 if (qlcnic_82xx_check(adapter) ||
1615                     (qlcnic_83xx_check(adapter) &&
1616                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1617                         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1618                                 sds_ring = &recv_ctx->sds_rings[ring];
1619                                 free_irq(sds_ring->irq, sds_ring);
1620                         }
1621                 }
1622                 if ((qlcnic_83xx_check(adapter) &&
1623                      !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
1624                     (qlcnic_82xx_check(adapter) &&
1625                      qlcnic_check_multi_tx(adapter))) {
1626                         for (ring = 0; ring < adapter->max_drv_tx_rings;
1627                              ring++) {
1628                                 tx_ring = &adapter->tx_ring[ring];
1629                                 if (tx_ring->irq)
1630                                         free_irq(tx_ring->irq, tx_ring);
1631                         }
1632                 }
1633         }
1634 }
1635
1636 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1637 {
1638         u32 capab = 0;
1639
1640         if (qlcnic_82xx_check(adapter)) {
1641                 if (adapter->ahw->extra_capability[0] &
1642                     QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1643                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1644         } else {
1645                 capab = adapter->ahw->capabilities;
1646                 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1647                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1648         }
1649 }
1650
1651 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1652 {
1653         int ring;
1654         struct qlcnic_host_rds_ring *rds_ring;
1655
1656         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1657                 return -EIO;
1658
1659         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1660                 return 0;
1661
1662         if (qlcnic_set_eswitch_port_config(adapter))
1663                 return -EIO;
1664
1665         qlcnic_get_lro_mss_capability(adapter);
1666
1667         if (qlcnic_fw_create_ctx(adapter))
1668                 return -EIO;
1669
1670         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1671                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1672                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1673         }
1674
1675         qlcnic_set_multi(netdev);
1676         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1677
1678         adapter->ahw->linkup = 0;
1679
1680         if (adapter->max_sds_rings > 1)
1681                 qlcnic_config_rss(adapter, 1);
1682
1683         qlcnic_config_intr_coalesce(adapter);
1684
1685         if (netdev->features & NETIF_F_LRO)
1686                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1687
1688         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1689         qlcnic_napi_enable(adapter);
1690
1691         qlcnic_linkevent_request(adapter, 1);
1692
1693         adapter->ahw->reset_context = 0;
1694         return 0;
1695 }
1696
1697 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1698 {
1699         int err = 0;
1700
1701         rtnl_lock();
1702         if (netif_running(netdev))
1703                 err = __qlcnic_up(adapter, netdev);
1704         rtnl_unlock();
1705
1706         return err;
1707 }
1708
1709 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1710 {
1711         int ring;
1712
1713         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1714                 return;
1715
1716         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1717                 return;
1718
1719         if (qlcnic_sriov_vf_check(adapter))
1720                 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1721         smp_mb();
1722         netif_carrier_off(netdev);
1723         adapter->ahw->linkup = 0;
1724         netif_tx_disable(netdev);
1725
1726         qlcnic_free_mac_list(adapter);
1727
1728         if (adapter->fhash.fnum)
1729                 qlcnic_delete_lb_filters(adapter);
1730
1731         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1732
1733         qlcnic_napi_disable(adapter);
1734
1735         qlcnic_fw_destroy_ctx(adapter);
1736         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1737
1738         qlcnic_reset_rx_buffers_list(adapter);
1739
1740         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++)
1741                 qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
1742 }
1743
1744 /* Usage: During suspend and firmware recovery module */
1745
1746 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1747 {
1748         rtnl_lock();
1749         if (netif_running(netdev))
1750                 __qlcnic_down(adapter, netdev);
1751         rtnl_unlock();
1752
1753 }
1754
1755 int
1756 qlcnic_attach(struct qlcnic_adapter *adapter)
1757 {
1758         struct net_device *netdev = adapter->netdev;
1759         struct pci_dev *pdev = adapter->pdev;
1760         int err;
1761
1762         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1763                 return 0;
1764
1765         err = qlcnic_napi_add(adapter, netdev);
1766         if (err)
1767                 return err;
1768
1769         err = qlcnic_alloc_sw_resources(adapter);
1770         if (err) {
1771                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1772                 goto err_out_napi_del;
1773         }
1774
1775         err = qlcnic_alloc_hw_resources(adapter);
1776         if (err) {
1777                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1778                 goto err_out_free_sw;
1779         }
1780
1781         err = qlcnic_request_irq(adapter);
1782         if (err) {
1783                 dev_err(&pdev->dev, "failed to setup interrupt\n");
1784                 goto err_out_free_hw;
1785         }
1786
1787         qlcnic_create_sysfs_entries(adapter);
1788
1789         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1790         return 0;
1791
1792 err_out_free_hw:
1793         qlcnic_free_hw_resources(adapter);
1794 err_out_free_sw:
1795         qlcnic_free_sw_resources(adapter);
1796 err_out_napi_del:
1797         qlcnic_napi_del(adapter);
1798         return err;
1799 }
1800
1801 void qlcnic_detach(struct qlcnic_adapter *adapter)
1802 {
1803         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1804                 return;
1805
1806         qlcnic_remove_sysfs_entries(adapter);
1807
1808         qlcnic_free_hw_resources(adapter);
1809         qlcnic_release_rx_buffers(adapter);
1810         qlcnic_free_irq(adapter);
1811         qlcnic_napi_del(adapter);
1812         qlcnic_free_sw_resources(adapter);
1813
1814         adapter->is_up = 0;
1815 }
1816
1817 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1818 {
1819         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1820         struct qlcnic_host_sds_ring *sds_ring;
1821         int max_tx_rings = adapter->max_drv_tx_rings;
1822         int ring;
1823
1824         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1825         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1826                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1827                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1828                         qlcnic_disable_int(sds_ring);
1829                 }
1830         }
1831
1832         qlcnic_fw_destroy_ctx(adapter);
1833
1834         qlcnic_detach(adapter);
1835
1836         adapter->ahw->diag_test = 0;
1837         adapter->max_sds_rings = max_sds_rings;
1838         adapter->max_drv_tx_rings = max_tx_rings;
1839
1840         if (qlcnic_attach(adapter))
1841                 goto out;
1842
1843         if (netif_running(netdev))
1844                 __qlcnic_up(adapter, netdev);
1845 out:
1846         netif_device_attach(netdev);
1847 }
1848
1849 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
1850 {
1851         struct qlcnic_hardware_context *ahw = adapter->ahw;
1852         int err = 0;
1853
1854         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
1855                                 GFP_KERNEL);
1856         if (!adapter->recv_ctx) {
1857                 err = -ENOMEM;
1858                 goto err_out;
1859         }
1860         /* Initialize interrupt coalesce parameters */
1861         ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1862         ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1863         ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1864         ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1865         if (qlcnic_83xx_check(adapter)) {
1866                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1867                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1868         }
1869         /* clear stats */
1870         memset(&adapter->stats, 0, sizeof(adapter->stats));
1871 err_out:
1872         return err;
1873 }
1874
1875 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
1876 {
1877         kfree(adapter->recv_ctx);
1878         adapter->recv_ctx = NULL;
1879
1880         if (adapter->ahw->fw_dump.tmpl_hdr) {
1881                 vfree(adapter->ahw->fw_dump.tmpl_hdr);
1882                 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1883         }
1884
1885         kfree(adapter->ahw->reset.buff);
1886         adapter->ahw->fw_dump.tmpl_hdr = NULL;
1887 }
1888
1889 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1890 {
1891         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1892         struct qlcnic_host_sds_ring *sds_ring;
1893         struct qlcnic_host_rds_ring *rds_ring;
1894         int ring;
1895         int ret;
1896
1897         netif_device_detach(netdev);
1898
1899         if (netif_running(netdev))
1900                 __qlcnic_down(adapter, netdev);
1901
1902         qlcnic_detach(adapter);
1903
1904         adapter->max_sds_rings = 1;
1905         adapter->ahw->diag_test = test;
1906         adapter->ahw->linkup = 0;
1907         adapter->max_drv_tx_rings = 1;
1908
1909         ret = qlcnic_attach(adapter);
1910         if (ret) {
1911                 netif_device_attach(netdev);
1912                 return ret;
1913         }
1914
1915         ret = qlcnic_fw_create_ctx(adapter);
1916         if (ret) {
1917                 qlcnic_detach(adapter);
1918                 netif_device_attach(netdev);
1919                 return ret;
1920         }
1921
1922         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1923                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1924                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1925         }
1926
1927         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1928                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1929                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1930                         qlcnic_enable_int(sds_ring);
1931                 }
1932         }
1933
1934         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
1935                 adapter->ahw->loopback_state = 0;
1936                 qlcnic_linkevent_request(adapter, 1);
1937         }
1938
1939         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1940
1941         return 0;
1942 }
1943
1944 /* Reset context in hardware only */
1945 static int
1946 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1947 {
1948         struct net_device *netdev = adapter->netdev;
1949
1950         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1951                 return -EBUSY;
1952
1953         netif_device_detach(netdev);
1954
1955         qlcnic_down(adapter, netdev);
1956
1957         qlcnic_up(adapter, netdev);
1958
1959         netif_device_attach(netdev);
1960
1961         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1962         dev_err(&adapter->pdev->dev, "%s:\n", __func__);
1963         return 0;
1964 }
1965
1966 int
1967 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1968 {
1969         int err = 0;
1970         struct net_device *netdev = adapter->netdev;
1971
1972         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1973                 return -EBUSY;
1974
1975         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1976
1977                 netif_device_detach(netdev);
1978
1979                 if (netif_running(netdev))
1980                         __qlcnic_down(adapter, netdev);
1981
1982                 qlcnic_detach(adapter);
1983
1984                 if (netif_running(netdev)) {
1985                         err = qlcnic_attach(adapter);
1986                         if (!err) {
1987                                 __qlcnic_up(adapter, netdev);
1988                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1989                         }
1990                 }
1991
1992                 netif_device_attach(netdev);
1993         }
1994
1995         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1996         return err;
1997 }
1998
1999 void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
2000 {
2001         struct qlcnic_hardware_context *ahw = adapter->ahw;
2002         u16 act_pci_fn = ahw->act_pci_func;
2003         u16 count;
2004
2005         ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
2006         if (act_pci_fn <= 2)
2007                 count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
2008                          act_pci_fn;
2009         else
2010                 count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
2011                          act_pci_fn;
2012         ahw->max_uc_count = count;
2013 }
2014
2015 int
2016 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
2017                     int pci_using_dac)
2018 {
2019         int err;
2020         struct pci_dev *pdev = adapter->pdev;
2021
2022         adapter->rx_csum = 1;
2023         adapter->ahw->mc_enabled = 0;
2024         qlcnic_set_mac_filter_count(adapter);
2025
2026         netdev->netdev_ops         = &qlcnic_netdev_ops;
2027         netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
2028
2029         qlcnic_change_mtu(netdev, netdev->mtu);
2030
2031         if (qlcnic_sriov_vf_check(adapter))
2032                 SET_ETHTOOL_OPS(netdev, &qlcnic_sriov_vf_ethtool_ops);
2033         else
2034                 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
2035
2036         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2037                              NETIF_F_IPV6_CSUM | NETIF_F_GRO |
2038                              NETIF_F_HW_VLAN_CTAG_RX);
2039         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
2040                                   NETIF_F_IPV6_CSUM);
2041
2042         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
2043                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
2044                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
2045         }
2046
2047         if (pci_using_dac) {
2048                 netdev->features |= NETIF_F_HIGHDMA;
2049                 netdev->vlan_features |= NETIF_F_HIGHDMA;
2050         }
2051
2052         if (qlcnic_vlan_tx_check(adapter))
2053                 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
2054
2055         if (qlcnic_sriov_vf_check(adapter))
2056                 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2057
2058         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
2059                 netdev->features |= NETIF_F_LRO;
2060
2061         netdev->hw_features = netdev->features;
2062         netdev->priv_flags |= IFF_UNICAST_FLT;
2063         netdev->irq = adapter->msix_entries[0].vector;
2064
2065         err = qlcnic_set_real_num_queues(adapter, netdev);
2066         if (err)
2067                 return err;
2068
2069         err = register_netdev(netdev);
2070         if (err) {
2071                 dev_err(&pdev->dev, "failed to register net device\n");
2072                 return err;
2073         }
2074
2075         qlcnic_dcb_init_dcbnl_ops(adapter);
2076
2077         return 0;
2078 }
2079
2080 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
2081 {
2082         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
2083                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
2084                 *pci_using_dac = 1;
2085         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
2086                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
2087                 *pci_using_dac = 0;
2088         else {
2089                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
2090                 return -EIO;
2091         }
2092
2093         return 0;
2094 }
2095
2096 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
2097 {
2098         int ring;
2099         struct qlcnic_host_tx_ring *tx_ring;
2100
2101         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
2102                 tx_ring = &adapter->tx_ring[ring];
2103                 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
2104                         vfree(tx_ring->cmd_buf_arr);
2105                         tx_ring->cmd_buf_arr = NULL;
2106                 }
2107         }
2108         if (adapter->tx_ring != NULL)
2109                 kfree(adapter->tx_ring);
2110 }
2111
2112 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
2113                           struct net_device *netdev)
2114 {
2115         int ring, vector, index;
2116         struct qlcnic_host_tx_ring *tx_ring;
2117         struct qlcnic_cmd_buffer *cmd_buf_arr;
2118
2119         tx_ring = kcalloc(adapter->max_drv_tx_rings,
2120                           sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
2121         if (tx_ring == NULL)
2122                 return -ENOMEM;
2123
2124         adapter->tx_ring = tx_ring;
2125
2126         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
2127                 tx_ring = &adapter->tx_ring[ring];
2128                 tx_ring->num_desc = adapter->num_txd;
2129                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
2130                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
2131                 if (cmd_buf_arr == NULL) {
2132                         qlcnic_free_tx_rings(adapter);
2133                         return -ENOMEM;
2134                 }
2135                 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
2136                 tx_ring->cmd_buf_arr = cmd_buf_arr;
2137         }
2138
2139         if (qlcnic_83xx_check(adapter) ||
2140             (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
2141                 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
2142                         tx_ring = &adapter->tx_ring[ring];
2143                         tx_ring->adapter = adapter;
2144                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
2145                                 index = adapter->max_sds_rings + ring;
2146                                 vector = adapter->msix_entries[index].vector;
2147                                 tx_ring->irq = vector;
2148                         }
2149                 }
2150         }
2151
2152         return 0;
2153 }
2154
2155 void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
2156 {
2157         struct qlcnic_hardware_context *ahw = adapter->ahw;
2158         u32 fw_cmd = 0;
2159
2160         if (qlcnic_82xx_check(adapter))
2161                 fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
2162         else if (qlcnic_83xx_check(adapter))
2163                 fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
2164
2165         if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER)
2166                 qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
2167 }
2168
2169 static int qlcnic_register_dcb(struct qlcnic_adapter *adapter)
2170 {
2171         return __qlcnic_register_dcb(adapter);
2172 }
2173
2174 void qlcnic_clear_dcb_ops(struct qlcnic_adapter *adapter)
2175 {
2176         kfree(adapter->dcb);
2177         adapter->dcb = NULL;
2178 }
2179
2180 static int
2181 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2182 {
2183         struct net_device *netdev = NULL;
2184         struct qlcnic_adapter *adapter = NULL;
2185         struct qlcnic_hardware_context *ahw;
2186         int err, pci_using_dac = -1;
2187         char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
2188
2189         if (pdev->is_virtfn)
2190                 return -ENODEV;
2191
2192         err = pci_enable_device(pdev);
2193         if (err)
2194                 return err;
2195
2196         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2197                 err = -ENODEV;
2198                 goto err_out_disable_pdev;
2199         }
2200
2201         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
2202         if (err)
2203                 goto err_out_disable_pdev;
2204
2205         err = pci_request_regions(pdev, qlcnic_driver_name);
2206         if (err)
2207                 goto err_out_disable_pdev;
2208
2209         pci_set_master(pdev);
2210         pci_enable_pcie_error_reporting(pdev);
2211
2212         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2213         if (!ahw) {
2214                 err = -ENOMEM;
2215                 goto err_out_free_res;
2216         }
2217
2218         switch (ent->device) {
2219         case PCI_DEVICE_ID_QLOGIC_QLE824X:
2220                 ahw->hw_ops = &qlcnic_hw_ops;
2221                 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2222                 break;
2223         case PCI_DEVICE_ID_QLOGIC_QLE834X:
2224         case PCI_DEVICE_ID_QLOGIC_QLE844X:
2225                 qlcnic_83xx_register_map(ahw);
2226                 break;
2227         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2228         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2229                 qlcnic_sriov_vf_register_map(ahw);
2230                 break;
2231         default:
2232                 goto err_out_free_hw_res;
2233         }
2234
2235         err = qlcnic_setup_pci_map(pdev, ahw);
2236         if (err)
2237                 goto err_out_free_hw_res;
2238
2239         netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
2240                                    QLCNIC_MAX_TX_RINGS);
2241         if (!netdev) {
2242                 err = -ENOMEM;
2243                 goto err_out_iounmap;
2244         }
2245
2246         SET_NETDEV_DEV(netdev, &pdev->dev);
2247
2248         adapter = netdev_priv(netdev);
2249         adapter->netdev  = netdev;
2250         adapter->pdev    = pdev;
2251         adapter->ahw = ahw;
2252
2253         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2254         if (adapter->qlcnic_wq == NULL) {
2255                 err = -ENOMEM;
2256                 dev_err(&pdev->dev, "Failed to create workqueue\n");
2257                 goto err_out_free_netdev;
2258         }
2259
2260         err = qlcnic_alloc_adapter_resources(adapter);
2261         if (err)
2262                 goto err_out_free_wq;
2263
2264         adapter->dev_rst_time = jiffies;
2265         adapter->ahw->revision_id = pdev->revision;
2266         if (qlcnic_mac_learn == FDB_MAC_LEARN)
2267                 adapter->fdb_mac_learn = true;
2268         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2269                 adapter->drv_mac_learn = true;
2270
2271         rwlock_init(&adapter->ahw->crb_lock);
2272         mutex_init(&adapter->ahw->mem_lock);
2273
2274         INIT_LIST_HEAD(&adapter->mac_list);
2275
2276         qlcnic_register_dcb(adapter);
2277
2278         if (qlcnic_82xx_check(adapter)) {
2279                 qlcnic_check_vf(adapter, ent);
2280                 adapter->portnum = adapter->ahw->pci_func;
2281                 err = qlcnic_start_firmware(adapter);
2282                 if (err) {
2283                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
2284                                 "\t\tIf reboot doesn't help, try flashing the card\n");
2285                         goto err_out_maintenance_mode;
2286                 }
2287
2288                 qlcnic_get_multiq_capability(adapter);
2289
2290                 if ((adapter->ahw->act_pci_func > 2) &&
2291                     qlcnic_check_multi_tx(adapter)) {
2292                         adapter->max_drv_tx_rings = QLCNIC_DEF_NUM_TX_RINGS;
2293                         dev_info(&adapter->pdev->dev,
2294                                  "vNIC mode enabled, Set max TX rings = %d\n",
2295                                  adapter->max_drv_tx_rings);
2296                 }
2297
2298                 if (!qlcnic_check_multi_tx(adapter)) {
2299                         clear_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
2300                         adapter->max_drv_tx_rings = 1;
2301                 }
2302                 err = qlcnic_setup_idc_param(adapter);
2303                 if (err)
2304                         goto err_out_free_hw;
2305
2306                 adapter->flags |= QLCNIC_NEED_FLR;
2307
2308                 if (adapter->dcb && qlcnic_dcb_attach(adapter))
2309                         qlcnic_clear_dcb_ops(adapter);
2310
2311         } else if (qlcnic_83xx_check(adapter)) {
2312                 adapter->max_drv_tx_rings = 1;
2313                 qlcnic_83xx_check_vf(adapter, ent);
2314                 adapter->portnum = adapter->ahw->pci_func;
2315                 err = qlcnic_83xx_init(adapter, pci_using_dac);
2316                 if (err) {
2317                         dev_err(&pdev->dev, "%s: failed\n", __func__);
2318                         goto err_out_free_hw;
2319                 }
2320                 if (qlcnic_sriov_vf_check(adapter))
2321                         return 0;
2322         } else {
2323                 dev_err(&pdev->dev,
2324                         "%s: failed. Please Reboot\n", __func__);
2325                 goto err_out_free_hw;
2326         }
2327
2328         if (qlcnic_read_mac_addr(adapter))
2329                 dev_warn(&pdev->dev, "failed to read mac addr\n");
2330
2331         qlcnic_read_phys_port_id(adapter);
2332
2333         if (adapter->portnum == 0) {
2334                 qlcnic_get_board_name(adapter, board_name);
2335
2336                 pr_info("%s: %s Board Chip rev 0x%x\n",
2337                         module_name(THIS_MODULE),
2338                         board_name, adapter->ahw->revision_id);
2339         }
2340
2341         if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2342             !!qlcnic_use_msi)
2343                 dev_warn(&pdev->dev,
2344                          "Device does not support MSI interrupts\n");
2345
2346         if (qlcnic_82xx_check(adapter)) {
2347                 err = qlcnic_setup_intr(adapter, 0, 0);
2348                 if (err) {
2349                         dev_err(&pdev->dev, "Failed to setup interrupt\n");
2350                         goto err_out_disable_msi;
2351                 }
2352         }
2353
2354         err = qlcnic_get_act_pci_func(adapter);
2355         if (err)
2356                 goto err_out_disable_mbx_intr;
2357
2358         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2359         if (err)
2360                 goto err_out_disable_mbx_intr;
2361
2362         if (adapter->portnum == 0)
2363                 qlcnic_set_drv_version(adapter);
2364
2365         pci_set_drvdata(pdev, adapter);
2366
2367         if (qlcnic_82xx_check(adapter))
2368                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2369                                      FW_POLL_DELAY);
2370
2371         switch (adapter->ahw->port_type) {
2372         case QLCNIC_GBE:
2373                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2374                                 adapter->netdev->name);
2375                 break;
2376         case QLCNIC_XGBE:
2377                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2378                                 adapter->netdev->name);
2379                 break;
2380         }
2381
2382         if (adapter->drv_mac_learn)
2383                 qlcnic_alloc_lb_filters_mem(adapter);
2384
2385         qlcnic_add_sysfs(adapter);
2386
2387         return 0;
2388
2389 err_out_disable_mbx_intr:
2390         if (qlcnic_83xx_check(adapter))
2391                 qlcnic_83xx_free_mbx_intr(adapter);
2392
2393 err_out_disable_msi:
2394         qlcnic_teardown_intr(adapter);
2395         qlcnic_cancel_idc_work(adapter);
2396         qlcnic_clr_all_drv_state(adapter, 0);
2397
2398 err_out_free_hw:
2399         qlcnic_free_adapter_resources(adapter);
2400
2401 err_out_free_wq:
2402         destroy_workqueue(adapter->qlcnic_wq);
2403
2404 err_out_free_netdev:
2405         free_netdev(netdev);
2406
2407 err_out_iounmap:
2408         qlcnic_cleanup_pci_map(ahw);
2409
2410 err_out_free_hw_res:
2411         kfree(ahw);
2412
2413 err_out_free_res:
2414         pci_release_regions(pdev);
2415
2416 err_out_disable_pdev:
2417         pci_set_drvdata(pdev, NULL);
2418         pci_disable_device(pdev);
2419         return err;
2420
2421 err_out_maintenance_mode:
2422         netdev->netdev_ops = &qlcnic_netdev_failed_ops;
2423         SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_failed_ops);
2424         err = register_netdev(netdev);
2425
2426         if (err) {
2427                 dev_err(&pdev->dev, "Failed to register net device\n");
2428                 qlcnic_clr_all_drv_state(adapter, 0);
2429                 goto err_out_free_hw;
2430         }
2431
2432         pci_set_drvdata(pdev, adapter);
2433         qlcnic_add_sysfs(adapter);
2434
2435         return 0;
2436 }
2437
2438 static void qlcnic_remove(struct pci_dev *pdev)
2439 {
2440         struct qlcnic_adapter *adapter;
2441         struct net_device *netdev;
2442         struct qlcnic_hardware_context *ahw;
2443
2444         adapter = pci_get_drvdata(pdev);
2445         if (adapter == NULL)
2446                 return;
2447
2448         netdev = adapter->netdev;
2449         qlcnic_sriov_pf_disable(adapter);
2450
2451         qlcnic_cancel_idc_work(adapter);
2452         ahw = adapter->ahw;
2453
2454         qlcnic_dcb_free(adapter);
2455
2456         unregister_netdev(netdev);
2457         qlcnic_sriov_cleanup(adapter);
2458
2459         if (qlcnic_83xx_check(adapter)) {
2460                 qlcnic_83xx_register_nic_idc_func(adapter, 0);
2461                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2462                 qlcnic_83xx_free_mbx_intr(adapter);
2463                 qlcnic_83xx_detach_mailbox_work(adapter);
2464                 qlcnic_83xx_free_mailbox(ahw->mailbox);
2465                 kfree(ahw->fw_info);
2466         }
2467
2468         qlcnic_detach(adapter);
2469
2470         if (adapter->npars != NULL)
2471                 kfree(adapter->npars);
2472         if (adapter->eswitch != NULL)
2473                 kfree(adapter->eswitch);
2474
2475         if (qlcnic_82xx_check(adapter))
2476                 qlcnic_clr_all_drv_state(adapter, 0);
2477
2478         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2479
2480         qlcnic_free_lb_filters_mem(adapter);
2481
2482         qlcnic_teardown_intr(adapter);
2483
2484         qlcnic_remove_sysfs(adapter);
2485
2486         qlcnic_cleanup_pci_map(adapter->ahw);
2487
2488         qlcnic_release_firmware(adapter);
2489
2490         pci_disable_pcie_error_reporting(pdev);
2491         pci_release_regions(pdev);
2492         pci_disable_device(pdev);
2493         pci_set_drvdata(pdev, NULL);
2494
2495         if (adapter->qlcnic_wq) {
2496                 destroy_workqueue(adapter->qlcnic_wq);
2497                 adapter->qlcnic_wq = NULL;
2498         }
2499
2500         qlcnic_free_adapter_resources(adapter);
2501         kfree(ahw);
2502         free_netdev(netdev);
2503 }
2504
2505 static void qlcnic_shutdown(struct pci_dev *pdev)
2506 {
2507         if (__qlcnic_shutdown(pdev))
2508                 return;
2509
2510         pci_disable_device(pdev);
2511 }
2512
2513 #ifdef CONFIG_PM
2514 static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2515 {
2516         int retval;
2517
2518         retval = __qlcnic_shutdown(pdev);
2519         if (retval)
2520                 return retval;
2521
2522         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2523         return 0;
2524 }
2525
2526 static int qlcnic_resume(struct pci_dev *pdev)
2527 {
2528         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2529         int err;
2530
2531         err = pci_enable_device(pdev);
2532         if (err)
2533                 return err;
2534
2535         pci_set_power_state(pdev, PCI_D0);
2536         pci_set_master(pdev);
2537         pci_restore_state(pdev);
2538
2539         return  __qlcnic_resume(adapter);
2540 }
2541 #endif
2542
2543 static int qlcnic_open(struct net_device *netdev)
2544 {
2545         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2546         u32 state;
2547         int err;
2548
2549         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2550         if (state == QLCNIC_DEV_FAILED || state == QLCNIC_DEV_BADBAD) {
2551                 netdev_err(netdev, "%s: Device is in FAILED state\n", __func__);
2552
2553                 return -EIO;
2554         }
2555
2556         netif_carrier_off(netdev);
2557
2558         err = qlcnic_attach(adapter);
2559         if (err)
2560                 return err;
2561
2562         err = __qlcnic_up(adapter, netdev);
2563         if (err)
2564                 goto err_out;
2565
2566         netif_tx_start_all_queues(netdev);
2567
2568         return 0;
2569
2570 err_out:
2571         qlcnic_detach(adapter);
2572         return err;
2573 }
2574
2575 /*
2576  * qlcnic_close - Disables a network interface entry point
2577  */
2578 static int qlcnic_close(struct net_device *netdev)
2579 {
2580         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2581
2582         __qlcnic_down(adapter, netdev);
2583
2584         return 0;
2585 }
2586
2587 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2588 {
2589         void *head;
2590         int i;
2591         struct net_device *netdev = adapter->netdev;
2592         u32 filter_size = 0;
2593         u16 act_pci_func = 0;
2594
2595         if (adapter->fhash.fmax && adapter->fhash.fhead)
2596                 return;
2597
2598         act_pci_func = adapter->ahw->act_pci_func;
2599         spin_lock_init(&adapter->mac_learn_lock);
2600         spin_lock_init(&adapter->rx_mac_learn_lock);
2601
2602         if (qlcnic_82xx_check(adapter)) {
2603                 filter_size = QLCNIC_LB_MAX_FILTERS;
2604                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2605         } else {
2606                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2607                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2608         }
2609
2610         head = kcalloc(adapter->fhash.fbucket_size,
2611                        sizeof(struct hlist_head), GFP_ATOMIC);
2612
2613         if (!head)
2614                 return;
2615
2616         adapter->fhash.fmax = (filter_size / act_pci_func);
2617         adapter->fhash.fhead = head;
2618
2619         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2620                     act_pci_func, adapter->fhash.fmax);
2621
2622         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2623                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2624
2625         adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2626
2627         head = kcalloc(adapter->rx_fhash.fbucket_size,
2628                        sizeof(struct hlist_head), GFP_ATOMIC);
2629
2630         if (!head)
2631                 return;
2632
2633         adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2634         adapter->rx_fhash.fhead = head;
2635
2636         for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2637                 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2638 }
2639
2640 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2641 {
2642         if (adapter->fhash.fmax && adapter->fhash.fhead)
2643                 kfree(adapter->fhash.fhead);
2644
2645         adapter->fhash.fhead = NULL;
2646         adapter->fhash.fmax = 0;
2647
2648         if (adapter->rx_fhash.fmax && adapter->rx_fhash.fhead)
2649                 kfree(adapter->rx_fhash.fhead);
2650
2651         adapter->rx_fhash.fmax = 0;
2652         adapter->rx_fhash.fhead = NULL;
2653 }
2654
2655 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2656 {
2657         struct net_device *netdev = adapter->netdev;
2658         u32 temp_state, temp_val, temp = 0;
2659         int rv = 0;
2660
2661         if (qlcnic_83xx_check(adapter))
2662                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2663
2664         if (qlcnic_82xx_check(adapter))
2665                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2666
2667         temp_state = qlcnic_get_temp_state(temp);
2668         temp_val = qlcnic_get_temp_val(temp);
2669
2670         if (temp_state == QLCNIC_TEMP_PANIC) {
2671                 dev_err(&netdev->dev,
2672                        "Device temperature %d degrees C exceeds"
2673                        " maximum allowed. Hardware has been shut down.\n",
2674                        temp_val);
2675                 rv = 1;
2676         } else if (temp_state == QLCNIC_TEMP_WARN) {
2677                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2678                         dev_err(&netdev->dev,
2679                                "Device temperature %d degrees C "
2680                                "exceeds operating range."
2681                                " Immediate action needed.\n",
2682                                temp_val);
2683                 }
2684         } else {
2685                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2686                         dev_info(&netdev->dev,
2687                                "Device temperature is now %d degrees C"
2688                                " in normal range.\n", temp_val);
2689                 }
2690         }
2691         adapter->ahw->temp = temp_state;
2692         return rv;
2693 }
2694
2695 static void qlcnic_tx_timeout(struct net_device *netdev)
2696 {
2697         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2698         struct qlcnic_host_tx_ring *tx_ring;
2699         int ring;
2700
2701         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2702                 return;
2703
2704         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS) {
2705                 netdev_info(netdev, "Tx timeout, reset the adapter.\n");
2706                 if (qlcnic_82xx_check(adapter))
2707                         adapter->need_fw_reset = 1;
2708                 else if (qlcnic_83xx_check(adapter))
2709                         qlcnic_83xx_idc_request_reset(adapter,
2710                                                       QLCNIC_FORCE_FW_DUMP_KEY);
2711         } else {
2712                 netdev_info(netdev, "Tx timeout, reset adapter context.\n");
2713                 if (qlcnic_82xx_check(adapter)) {
2714                         for (ring = 0; ring < adapter->max_drv_tx_rings;
2715                              ring++) {
2716                                 tx_ring = &adapter->tx_ring[ring];
2717                                 dev_info(&netdev->dev, "ring=%d\n", ring);
2718                                 dev_info(&netdev->dev, "crb_intr_mask=%d\n",
2719                                          readl(tx_ring->crb_intr_mask));
2720                                 dev_info(&netdev->dev, "producer=%d\n",
2721                                          readl(tx_ring->crb_cmd_producer));
2722                                 dev_info(&netdev->dev, "sw_consumer = %d\n",
2723                                          tx_ring->sw_consumer);
2724                                 dev_info(&netdev->dev, "hw_consumer = %d\n",
2725                                          le32_to_cpu(*(tx_ring->hw_consumer)));
2726                                 dev_info(&netdev->dev, "xmit-on=%llu\n",
2727                                          tx_ring->xmit_on);
2728                                 dev_info(&netdev->dev, "xmit-off=%llu\n",
2729                                          tx_ring->xmit_off);
2730                         }
2731                 }
2732                 adapter->ahw->reset_context = 1;
2733         }
2734 }
2735
2736 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2737 {
2738         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2739         struct net_device_stats *stats = &netdev->stats;
2740
2741         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2742         stats->tx_packets = adapter->stats.xmitfinished;
2743         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2744         stats->tx_bytes = adapter->stats.txbytes;
2745         stats->rx_dropped = adapter->stats.rxdropped;
2746         stats->tx_dropped = adapter->stats.txdropped;
2747
2748         return stats;
2749 }
2750
2751 irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
2752 {
2753         u32 status;
2754
2755         status = readl(adapter->isr_int_vec);
2756
2757         if (!(status & adapter->ahw->int_vec_bit))
2758                 return IRQ_NONE;
2759
2760         /* check interrupt state machine, to be sure */
2761         status = readl(adapter->crb_int_state_reg);
2762         if (!ISR_LEGACY_INT_TRIGGERED(status))
2763                 return IRQ_NONE;
2764
2765         writel(0xffffffff, adapter->tgt_status_reg);
2766         /* read twice to ensure write is flushed */
2767         readl(adapter->isr_int_vec);
2768         readl(adapter->isr_int_vec);
2769
2770         return IRQ_HANDLED;
2771 }
2772
2773 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2774 {
2775         struct qlcnic_host_sds_ring *sds_ring = data;
2776         struct qlcnic_adapter *adapter = sds_ring->adapter;
2777
2778         if (adapter->flags & QLCNIC_MSIX_ENABLED)
2779                 goto done;
2780         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2781                 writel(0xffffffff, adapter->tgt_status_reg);
2782                 goto done;
2783         }
2784
2785         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2786                 return IRQ_NONE;
2787
2788 done:
2789         adapter->ahw->diag_cnt++;
2790         qlcnic_enable_int(sds_ring);
2791         return IRQ_HANDLED;
2792 }
2793
2794 static irqreturn_t qlcnic_intr(int irq, void *data)
2795 {
2796         struct qlcnic_host_sds_ring *sds_ring = data;
2797         struct qlcnic_adapter *adapter = sds_ring->adapter;
2798
2799         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2800                 return IRQ_NONE;
2801
2802         napi_schedule(&sds_ring->napi);
2803
2804         return IRQ_HANDLED;
2805 }
2806
2807 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2808 {
2809         struct qlcnic_host_sds_ring *sds_ring = data;
2810         struct qlcnic_adapter *adapter = sds_ring->adapter;
2811
2812         /* clear interrupt */
2813         writel(0xffffffff, adapter->tgt_status_reg);
2814
2815         napi_schedule(&sds_ring->napi);
2816         return IRQ_HANDLED;
2817 }
2818
2819 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2820 {
2821         struct qlcnic_host_sds_ring *sds_ring = data;
2822
2823         napi_schedule(&sds_ring->napi);
2824         return IRQ_HANDLED;
2825 }
2826
2827 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
2828 {
2829         struct qlcnic_host_tx_ring *tx_ring = data;
2830
2831         napi_schedule(&tx_ring->napi);
2832         return IRQ_HANDLED;
2833 }
2834
2835 #ifdef CONFIG_NET_POLL_CONTROLLER
2836 static void qlcnic_poll_controller(struct net_device *netdev)
2837 {
2838         int ring;
2839         struct qlcnic_host_sds_ring *sds_ring;
2840         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2841         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2842
2843         disable_irq(adapter->irq);
2844         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2845                 sds_ring = &recv_ctx->sds_rings[ring];
2846                 qlcnic_intr(adapter->irq, sds_ring);
2847         }
2848         enable_irq(adapter->irq);
2849 }
2850 #endif
2851
2852 static void
2853 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2854 {
2855         u32 val;
2856
2857         val = adapter->portnum & 0xf;
2858         val |= encoding << 7;
2859         val |= (jiffies - adapter->dev_rst_time) << 8;
2860
2861         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2862         adapter->dev_rst_time = jiffies;
2863 }
2864
2865 static int
2866 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2867 {
2868         u32  val;
2869
2870         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2871                         state != QLCNIC_DEV_NEED_QUISCENT);
2872
2873         if (qlcnic_api_lock(adapter))
2874                 return -EIO;
2875
2876         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2877
2878         if (state == QLCNIC_DEV_NEED_RESET)
2879                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2880         else if (state == QLCNIC_DEV_NEED_QUISCENT)
2881                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2882
2883         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2884
2885         qlcnic_api_unlock(adapter);
2886
2887         return 0;
2888 }
2889
2890 static int
2891 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2892 {
2893         u32  val;
2894
2895         if (qlcnic_api_lock(adapter))
2896                 return -EBUSY;
2897
2898         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2899         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2900         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2901
2902         qlcnic_api_unlock(adapter);
2903
2904         return 0;
2905 }
2906
2907 void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2908 {
2909         u32  val;
2910
2911         if (qlcnic_api_lock(adapter))
2912                 goto err;
2913
2914         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2915         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2916         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2917
2918         if (failed) {
2919                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2920                                     QLCNIC_DEV_FAILED);
2921                 dev_info(&adapter->pdev->dev,
2922                                 "Device state set to Failed. Please Reboot\n");
2923         } else if (!(val & 0x11111111))
2924                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2925                                     QLCNIC_DEV_COLD);
2926
2927         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2928         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2929         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2930
2931         qlcnic_api_unlock(adapter);
2932 err:
2933         adapter->fw_fail_cnt = 0;
2934         adapter->flags &= ~QLCNIC_FW_HANG;
2935         clear_bit(__QLCNIC_START_FW, &adapter->state);
2936         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2937 }
2938
2939 /* Grab api lock, before checking state */
2940 static int
2941 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2942 {
2943         int act, state, active_mask;
2944         struct qlcnic_hardware_context *ahw = adapter->ahw;
2945
2946         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2947         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2948
2949         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
2950                 active_mask = (~(1 << (ahw->pci_func * 4)));
2951                 act = act & active_mask;
2952         }
2953
2954         if (((state & 0x11111111) == (act & 0x11111111)) ||
2955                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2956                 return 0;
2957         else
2958                 return 1;
2959 }
2960
2961 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2962 {
2963         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2964
2965         if (val != QLCNIC_DRV_IDC_VER) {
2966                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2967                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2968         }
2969
2970         return 0;
2971 }
2972
2973 static int
2974 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2975 {
2976         u32 val, prev_state;
2977         u8 dev_init_timeo = adapter->dev_init_timeo;
2978         u8 portnum = adapter->portnum;
2979         u8 ret;
2980
2981         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2982                 return 1;
2983
2984         if (qlcnic_api_lock(adapter))
2985                 return -1;
2986
2987         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2988         if (!(val & (1 << (portnum * 4)))) {
2989                 QLC_DEV_SET_REF_CNT(val, portnum);
2990                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2991         }
2992
2993         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2994         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2995
2996         switch (prev_state) {
2997         case QLCNIC_DEV_COLD:
2998                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2999                                     QLCNIC_DEV_INITIALIZING);
3000                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
3001                                     QLCNIC_DRV_IDC_VER);
3002                 qlcnic_idc_debug_info(adapter, 0);
3003                 qlcnic_api_unlock(adapter);
3004                 return 1;
3005
3006         case QLCNIC_DEV_READY:
3007                 ret = qlcnic_check_idc_ver(adapter);
3008                 qlcnic_api_unlock(adapter);
3009                 return ret;
3010
3011         case QLCNIC_DEV_NEED_RESET:
3012                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3013                 QLC_DEV_SET_RST_RDY(val, portnum);
3014                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3015                 break;
3016
3017         case QLCNIC_DEV_NEED_QUISCENT:
3018                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3019                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
3020                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3021                 break;
3022
3023         case QLCNIC_DEV_FAILED:
3024                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
3025                 qlcnic_api_unlock(adapter);
3026                 return -1;
3027
3028         case QLCNIC_DEV_INITIALIZING:
3029         case QLCNIC_DEV_QUISCENT:
3030                 break;
3031         }
3032
3033         qlcnic_api_unlock(adapter);
3034
3035         do {
3036                 msleep(1000);
3037                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3038
3039                 if (prev_state == QLCNIC_DEV_QUISCENT)
3040                         continue;
3041         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
3042
3043         if (!dev_init_timeo) {
3044                 dev_err(&adapter->pdev->dev,
3045                         "Waiting for device to initialize timeout\n");
3046                 return -1;
3047         }
3048
3049         if (qlcnic_api_lock(adapter))
3050                 return -1;
3051
3052         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3053         QLC_DEV_CLR_RST_QSCNT(val, portnum);
3054         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3055
3056         ret = qlcnic_check_idc_ver(adapter);
3057         qlcnic_api_unlock(adapter);
3058
3059         return ret;
3060 }
3061
3062 static void
3063 qlcnic_fwinit_work(struct work_struct *work)
3064 {
3065         struct qlcnic_adapter *adapter = container_of(work,
3066                         struct qlcnic_adapter, fw_work.work);
3067         u32 dev_state = 0xf;
3068         u32 val;
3069
3070         if (qlcnic_api_lock(adapter))
3071                 goto err_ret;
3072
3073         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3074         if (dev_state == QLCNIC_DEV_QUISCENT ||
3075             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3076                 qlcnic_api_unlock(adapter);
3077                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
3078                                                 FW_POLL_DELAY * 2);
3079                 return;
3080         }
3081
3082         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
3083                 qlcnic_api_unlock(adapter);
3084                 goto wait_npar;
3085         }
3086
3087         if (dev_state == QLCNIC_DEV_INITIALIZING ||
3088             dev_state == QLCNIC_DEV_READY) {
3089                 dev_info(&adapter->pdev->dev, "Detected state change from "
3090                                 "DEV_NEED_RESET, skipping ack check\n");
3091                 goto skip_ack_check;
3092         }
3093
3094         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
3095                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
3096                                         adapter->reset_ack_timeo);
3097                 goto skip_ack_check;
3098         }
3099
3100         if (!qlcnic_check_drv_state(adapter)) {
3101 skip_ack_check:
3102                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3103
3104                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
3105                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3106                                             QLCNIC_DEV_INITIALIZING);
3107                         set_bit(__QLCNIC_START_FW, &adapter->state);
3108                         QLCDB(adapter, DRV, "Restarting fw\n");
3109                         qlcnic_idc_debug_info(adapter, 0);
3110                         val = QLC_SHARED_REG_RD32(adapter,
3111                                                   QLCNIC_CRB_DRV_STATE);
3112                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3113                         QLC_SHARED_REG_WR32(adapter,
3114                                             QLCNIC_CRB_DRV_STATE, val);
3115                 }
3116
3117                 qlcnic_api_unlock(adapter);
3118
3119                 rtnl_lock();
3120                 if (qlcnic_check_fw_dump_state(adapter) &&
3121                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3122                         QLCDB(adapter, DRV, "Take FW dump\n");
3123                         qlcnic_dump_fw(adapter);
3124                         adapter->flags |= QLCNIC_FW_HANG;
3125                 }
3126                 rtnl_unlock();
3127
3128                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
3129                 if (!adapter->nic_ops->start_firmware(adapter)) {
3130                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3131                         adapter->fw_wait_cnt = 0;
3132                         return;
3133                 }
3134                 goto err_ret;
3135         }
3136
3137         qlcnic_api_unlock(adapter);
3138
3139 wait_npar:
3140         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3141         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
3142
3143         switch (dev_state) {
3144         case QLCNIC_DEV_READY:
3145                 if (!qlcnic_start_firmware(adapter)) {
3146                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3147                         adapter->fw_wait_cnt = 0;
3148                         return;
3149                 }
3150         case QLCNIC_DEV_FAILED:
3151                 break;
3152         default:
3153                 qlcnic_schedule_work(adapter,
3154                         qlcnic_fwinit_work, FW_POLL_DELAY);
3155                 return;
3156         }
3157
3158 err_ret:
3159         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
3160                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
3161         netif_device_attach(adapter->netdev);
3162         qlcnic_clr_all_drv_state(adapter, 0);
3163 }
3164
3165 static void
3166 qlcnic_detach_work(struct work_struct *work)
3167 {
3168         struct qlcnic_adapter *adapter = container_of(work,
3169                         struct qlcnic_adapter, fw_work.work);
3170         struct net_device *netdev = adapter->netdev;
3171         u32 status;
3172
3173         netif_device_detach(netdev);
3174
3175         /* Dont grab rtnl lock during Quiscent mode */
3176         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3177                 if (netif_running(netdev))
3178                         __qlcnic_down(adapter, netdev);
3179         } else
3180                 qlcnic_down(adapter, netdev);
3181
3182         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3183
3184         if (status & QLCNIC_RCODE_FATAL_ERROR) {
3185                 dev_err(&adapter->pdev->dev,
3186                         "Detaching the device: peg halt status1=0x%x\n",
3187                                         status);
3188
3189                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
3190                         dev_err(&adapter->pdev->dev,
3191                         "On board active cooling fan failed. "
3192                                 "Device has been halted.\n");
3193                         dev_err(&adapter->pdev->dev,
3194                                 "Replace the adapter.\n");
3195                 }
3196
3197                 goto err_ret;
3198         }
3199
3200         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
3201                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
3202                         adapter->ahw->temp);
3203                 goto err_ret;
3204         }
3205
3206         /* Dont ack if this instance is the reset owner */
3207         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3208                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
3209                         dev_err(&adapter->pdev->dev,
3210                                 "Failed to set driver state,"
3211                                         "detaching the device.\n");
3212                         goto err_ret;
3213                 }
3214         }
3215
3216         adapter->fw_wait_cnt = 0;
3217
3218         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3219
3220         return;
3221
3222 err_ret:
3223         netif_device_attach(netdev);
3224         qlcnic_clr_all_drv_state(adapter, 1);
3225 }
3226
3227 /*Transit NPAR state to NON Operational */
3228 static void
3229 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3230 {
3231         u32 state;
3232
3233         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3234         if (state == QLCNIC_DEV_NPAR_NON_OPER)
3235                 return;
3236
3237         if (qlcnic_api_lock(adapter))
3238                 return;
3239         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3240                             QLCNIC_DEV_NPAR_NON_OPER);
3241         qlcnic_api_unlock(adapter);
3242 }
3243
3244 void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter, u32 key)
3245 {
3246         u32 state, xg_val = 0, gb_val = 0;
3247
3248         qlcnic_xg_set_xg0_mask(xg_val);
3249         qlcnic_xg_set_xg1_mask(xg_val);
3250         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3251         qlcnic_gb_set_gb0_mask(gb_val);
3252         qlcnic_gb_set_gb1_mask(gb_val);
3253         qlcnic_gb_set_gb2_mask(gb_val);
3254         qlcnic_gb_set_gb3_mask(gb_val);
3255         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3256         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3257                                 " on all ports\n");
3258         adapter->need_fw_reset = 1;
3259
3260         if (qlcnic_api_lock(adapter))
3261                 return;
3262
3263         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3264         if (state == QLCNIC_DEV_FAILED || state == QLCNIC_DEV_BADBAD) {
3265                 netdev_err(adapter->netdev, "%s: Device is in FAILED state\n",
3266                            __func__);
3267                 qlcnic_api_unlock(adapter);
3268
3269                 return;
3270         }
3271
3272         if (state == QLCNIC_DEV_READY) {
3273                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3274                                     QLCNIC_DEV_NEED_RESET);
3275                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3276                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3277                 qlcnic_idc_debug_info(adapter, 0);
3278         }
3279
3280         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3281                             QLCNIC_DEV_NPAR_NON_OPER);
3282         qlcnic_api_unlock(adapter);
3283 }
3284
3285 /* Transit to NPAR READY state from NPAR NOT READY state */
3286 static void
3287 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3288 {
3289         if (qlcnic_api_lock(adapter))
3290                 return;
3291
3292         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3293                             QLCNIC_DEV_NPAR_OPER);
3294         QLCDB(adapter, DRV, "NPAR operational state set\n");
3295
3296         qlcnic_api_unlock(adapter);
3297 }
3298
3299 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3300                           work_func_t func, int delay)
3301 {
3302         if (test_bit(__QLCNIC_AER, &adapter->state))
3303                 return;
3304
3305         INIT_DELAYED_WORK(&adapter->fw_work, func);
3306         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3307                            round_jiffies_relative(delay));
3308 }
3309
3310 static void
3311 qlcnic_attach_work(struct work_struct *work)
3312 {
3313         struct qlcnic_adapter *adapter = container_of(work,
3314                                 struct qlcnic_adapter, fw_work.work);
3315         struct net_device *netdev = adapter->netdev;
3316         u32 npar_state;
3317
3318         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3319                 npar_state = QLC_SHARED_REG_RD32(adapter,
3320                                                  QLCNIC_CRB_DEV_NPAR_STATE);
3321                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3322                         qlcnic_clr_all_drv_state(adapter, 0);
3323                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3324                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
3325                                                         FW_POLL_DELAY);
3326                 else
3327                         goto attach;
3328                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3329                 return;
3330         }
3331 attach:
3332         qlcnic_dcb_get_info(adapter);
3333
3334         if (netif_running(netdev)) {
3335                 if (qlcnic_up(adapter, netdev))
3336                         goto done;
3337
3338                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3339         }
3340
3341 done:
3342         netif_device_attach(netdev);
3343         adapter->fw_fail_cnt = 0;
3344         adapter->flags &= ~QLCNIC_FW_HANG;
3345         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3346         if (adapter->portnum == 0)
3347                 qlcnic_set_drv_version(adapter);
3348
3349         if (!qlcnic_clr_drv_state(adapter))
3350                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3351                                                         FW_POLL_DELAY);
3352 }
3353
3354 static int
3355 qlcnic_check_health(struct qlcnic_adapter *adapter)
3356 {
3357         u32 state = 0, heartbeat;
3358         u32 peg_status;
3359         int err = 0;
3360
3361         if (qlcnic_check_temp(adapter))
3362                 goto detach;
3363
3364         if (adapter->need_fw_reset)
3365                 qlcnic_dev_request_reset(adapter, 0);
3366
3367         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3368         if (state == QLCNIC_DEV_NEED_RESET) {
3369                 qlcnic_set_npar_non_operational(adapter);
3370                 adapter->need_fw_reset = 1;
3371         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3372                 goto detach;
3373
3374         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3375         if (heartbeat != adapter->heartbeat) {
3376                 adapter->heartbeat = heartbeat;
3377                 adapter->fw_fail_cnt = 0;
3378                 if (adapter->need_fw_reset)
3379                         goto detach;
3380
3381                 if (adapter->ahw->reset_context && qlcnic_auto_fw_reset)
3382                         qlcnic_reset_hw_context(adapter);
3383
3384                 return 0;
3385         }
3386
3387         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3388                 return 0;
3389
3390         adapter->flags |= QLCNIC_FW_HANG;
3391
3392         qlcnic_dev_request_reset(adapter, 0);
3393
3394         if (qlcnic_auto_fw_reset)
3395                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3396
3397         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3398         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3399         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3400                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3401                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3402                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3403                         "PEG_NET_4_PC: 0x%x\n",
3404                         peg_status,
3405                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3406                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3407                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3408                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3409                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3410                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3411         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3412                 dev_err(&adapter->pdev->dev,
3413                         "Firmware aborted with error code 0x00006700. "
3414                                 "Device is being reset.\n");
3415 detach:
3416         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3417                 QLCNIC_DEV_NEED_RESET;
3418
3419         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3420                                                       &adapter->state)) {
3421
3422                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3423                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3424         }
3425
3426         return 1;
3427 }
3428
3429 void qlcnic_fw_poll_work(struct work_struct *work)
3430 {
3431         struct qlcnic_adapter *adapter = container_of(work,
3432                                 struct qlcnic_adapter, fw_work.work);
3433
3434         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3435                 goto reschedule;
3436
3437
3438         if (qlcnic_check_health(adapter))
3439                 return;
3440
3441         if (adapter->fhash.fnum)
3442                 qlcnic_prune_lb_filters(adapter);
3443
3444 reschedule:
3445         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3446 }
3447
3448 static int qlcnic_is_first_func(struct pci_dev *pdev)
3449 {
3450         struct pci_dev *oth_pdev;
3451         int val = pdev->devfn;
3452
3453         while (val-- > 0) {
3454                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3455                         (pdev->bus), pdev->bus->number,
3456                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3457                 if (!oth_pdev)
3458                         continue;
3459
3460                 if (oth_pdev->current_state != PCI_D3cold) {
3461                         pci_dev_put(oth_pdev);
3462                         return 0;
3463                 }
3464                 pci_dev_put(oth_pdev);
3465         }
3466         return 1;
3467 }
3468
3469 static int qlcnic_attach_func(struct pci_dev *pdev)
3470 {
3471         int err, first_func;
3472         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3473         struct net_device *netdev = adapter->netdev;
3474
3475         pdev->error_state = pci_channel_io_normal;
3476
3477         err = pci_enable_device(pdev);
3478         if (err)
3479                 return err;
3480
3481         pci_set_master(pdev);
3482         pci_restore_state(pdev);
3483
3484         first_func = qlcnic_is_first_func(pdev);
3485
3486         if (qlcnic_api_lock(adapter))
3487                 return -EINVAL;
3488
3489         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3490                 adapter->need_fw_reset = 1;
3491                 set_bit(__QLCNIC_START_FW, &adapter->state);
3492                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3493                                     QLCNIC_DEV_INITIALIZING);
3494                 QLCDB(adapter, DRV, "Restarting fw\n");
3495         }
3496         qlcnic_api_unlock(adapter);
3497
3498         err = qlcnic_start_firmware(adapter);
3499         if (err)
3500                 return err;
3501
3502         qlcnic_clr_drv_state(adapter);
3503         kfree(adapter->msix_entries);
3504         adapter->msix_entries = NULL;
3505         err = qlcnic_setup_intr(adapter, 0, 0);
3506
3507         if (err) {
3508                 kfree(adapter->msix_entries);
3509                 netdev_err(netdev, "failed to setup interrupt\n");
3510                 return err;
3511         }
3512
3513         if (netif_running(netdev)) {
3514                 err = qlcnic_attach(adapter);
3515                 if (err) {
3516                         qlcnic_clr_all_drv_state(adapter, 1);
3517                         clear_bit(__QLCNIC_AER, &adapter->state);
3518                         netif_device_attach(netdev);
3519                         return err;
3520                 }
3521
3522                 err = qlcnic_up(adapter, netdev);
3523                 if (err)
3524                         goto done;
3525
3526                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3527         }
3528  done:
3529         netif_device_attach(netdev);
3530         return err;
3531 }
3532
3533 pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
3534                                                pci_channel_state_t state)
3535 {
3536         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3537         struct net_device *netdev = adapter->netdev;
3538
3539         if (state == pci_channel_io_perm_failure)
3540                 return PCI_ERS_RESULT_DISCONNECT;
3541
3542         if (state == pci_channel_io_normal)
3543                 return PCI_ERS_RESULT_RECOVERED;
3544
3545         set_bit(__QLCNIC_AER, &adapter->state);
3546         netif_device_detach(netdev);
3547
3548         cancel_delayed_work_sync(&adapter->fw_work);
3549
3550         if (netif_running(netdev))
3551                 qlcnic_down(adapter, netdev);
3552
3553         qlcnic_detach(adapter);
3554         qlcnic_teardown_intr(adapter);
3555
3556         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3557
3558         pci_save_state(pdev);
3559         pci_disable_device(pdev);
3560
3561         return PCI_ERS_RESULT_NEED_RESET;
3562 }
3563
3564 pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
3565 {
3566         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3567                                 PCI_ERS_RESULT_RECOVERED;
3568 }
3569
3570 void qlcnic_82xx_io_resume(struct pci_dev *pdev)
3571 {
3572         u32 state;
3573         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3574
3575         pci_cleanup_aer_uncorrect_error_status(pdev);
3576         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3577         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3578                                                             &adapter->state))
3579                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3580                                      FW_POLL_DELAY);
3581 }
3582
3583 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3584                                                  pci_channel_state_t state)
3585 {
3586         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3587         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3588
3589         if (hw_ops->io_error_detected) {
3590                 return hw_ops->io_error_detected(pdev, state);
3591         } else {
3592                 dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
3593                 return PCI_ERS_RESULT_DISCONNECT;
3594         }
3595 }
3596
3597 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3598 {
3599         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3600         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3601
3602         if (hw_ops->io_slot_reset) {
3603                 return hw_ops->io_slot_reset(pdev);
3604         } else {
3605                 dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
3606                 return PCI_ERS_RESULT_DISCONNECT;
3607         }
3608 }
3609
3610 static void qlcnic_io_resume(struct pci_dev *pdev)
3611 {
3612         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3613         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3614
3615         if (hw_ops->io_resume)
3616                 hw_ops->io_resume(pdev);
3617         else
3618                 dev_err(&pdev->dev, "AER resume handler not registered.\n");
3619 }
3620
3621
3622 static int
3623 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3624 {
3625         int err;
3626
3627         err = qlcnic_can_start_firmware(adapter);
3628         if (err)
3629                 return err;
3630
3631         err = qlcnic_check_npar_opertional(adapter);
3632         if (err)
3633                 return err;
3634
3635         err = qlcnic_initialize_nic(adapter);
3636         if (err)
3637                 return err;
3638
3639         qlcnic_check_options(adapter);
3640
3641         err = qlcnic_set_eswitch_port_config(adapter);
3642         if (err)
3643                 return err;
3644
3645         adapter->need_fw_reset = 0;
3646
3647         return err;
3648 }
3649
3650 int qlcnic_validate_max_tx_rings(struct qlcnic_adapter *adapter, u32 txq)
3651 {
3652         struct net_device *netdev = adapter->netdev;
3653         u8 max_hw = QLCNIC_MAX_TX_RINGS;
3654         u32 max_allowed;
3655
3656         if (!qlcnic_use_msi_x && !qlcnic_use_msi) {
3657                 netdev_err(netdev, "No Multi TX-Q support in INT-x mode\n");
3658                 return -EINVAL;
3659         }
3660
3661         if (!qlcnic_check_multi_tx(adapter)) {
3662                 netdev_err(netdev, "No Multi TX-Q support\n");
3663                 return -EINVAL;
3664         }
3665
3666         if (txq > QLCNIC_MAX_TX_RINGS) {
3667                 netdev_err(netdev, "Invalid ring count\n");
3668                 return -EINVAL;
3669         }
3670
3671         max_allowed = rounddown_pow_of_two(min_t(int, max_hw,
3672                                                  num_online_cpus()));
3673         if ((txq > max_allowed) || !is_power_of_2(txq)) {
3674                 if (!is_power_of_2(txq))
3675                         netdev_err(netdev,
3676                                    "TX queue should be a power of 2\n");
3677                 if (txq > num_online_cpus())
3678                         netdev_err(netdev,
3679                                    "Tx queue should not be higher than [%u], number of online CPUs in the system\n",
3680                                    num_online_cpus());
3681                 netdev_err(netdev, "Unable to configure %u Tx rings\n", txq);
3682                 return -EINVAL;
3683         }
3684
3685         return 0;
3686 }
3687
3688 int qlcnic_validate_max_rss(struct qlcnic_adapter *adapter,
3689                                 __u32 val)
3690 {
3691         struct net_device *netdev = adapter->netdev;
3692         u8 max_hw = adapter->ahw->max_rx_ques;
3693         u32 max_allowed;
3694
3695         if (!qlcnic_use_msi_x && !qlcnic_use_msi) {
3696                 netdev_err(netdev, "No RSS support in INT-x mode\n");
3697                 return -EINVAL;
3698         }
3699
3700         if (val > QLCNIC_MAX_SDS_RINGS) {
3701                 netdev_err(netdev, "RSS value should not be higher than %u\n",
3702                            QLCNIC_MAX_SDS_RINGS);
3703                 return -EINVAL;
3704         }
3705
3706         max_allowed = rounddown_pow_of_two(min_t(int, max_hw,
3707                                                  num_online_cpus()));
3708         if ((val > max_allowed) || (val < 2) || !is_power_of_2(val)) {
3709                 if (!is_power_of_2(val))
3710                         netdev_err(netdev, "RSS value should be a power of 2\n");
3711
3712                 if (val < 2)
3713                         netdev_err(netdev, "RSS value should not be lower than 2\n");
3714
3715                 if (val > max_hw)
3716                         netdev_err(netdev,
3717                                    "RSS value should not be higher than[%u], the max RSS rings supported by the adapter\n",
3718                                    max_hw);
3719
3720                 if (val > num_online_cpus())
3721                         netdev_err(netdev,
3722                                    "RSS value should not be higher than[%u], number of online CPUs in the system\n",
3723                                    num_online_cpus());
3724
3725                 netdev_err(netdev, "Unable to configure %u RSS rings\n", val);
3726
3727                 return -EINVAL;
3728         }
3729         return 0;
3730 }
3731
3732 int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data, int txq)
3733 {
3734         int err;
3735         struct net_device *netdev = adapter->netdev;
3736         int num_msix;
3737
3738         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3739                 return -EBUSY;
3740
3741         if (qlcnic_82xx_check(adapter) && !qlcnic_use_msi_x &&
3742             !qlcnic_use_msi) {
3743                 netdev_err(netdev, "No RSS support in INT-x mode\n");
3744                 return -EINVAL;
3745         }
3746
3747         netif_device_detach(netdev);
3748         if (netif_running(netdev))
3749                 __qlcnic_down(adapter, netdev);
3750
3751         qlcnic_detach(adapter);
3752
3753         if (qlcnic_82xx_check(adapter)) {
3754                 if (txq != 0)
3755                         adapter->max_drv_tx_rings = txq;
3756
3757                 if (qlcnic_check_multi_tx(adapter) &&
3758                     (txq > adapter->max_drv_tx_rings))
3759                         num_msix = adapter->max_drv_tx_rings;
3760                 else
3761                         num_msix = data;
3762         }
3763
3764         if (qlcnic_83xx_check(adapter)) {
3765                 qlcnic_83xx_free_mbx_intr(adapter);
3766                 qlcnic_83xx_enable_mbx_poll(adapter);
3767         }
3768
3769         netif_set_real_num_tx_queues(netdev, adapter->max_drv_tx_rings);
3770
3771         qlcnic_teardown_intr(adapter);
3772
3773         err = qlcnic_setup_intr(adapter, data, txq);
3774         if (err) {
3775                 kfree(adapter->msix_entries);
3776                 netdev_err(netdev, "failed to setup interrupt\n");
3777                 return err;
3778         }
3779
3780         if (qlcnic_83xx_check(adapter)) {
3781                 /* register for NIC IDC AEN Events */
3782                 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3783                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3784                 qlcnic_83xx_disable_mbx_poll(adapter);
3785                 if (err) {
3786                         dev_err(&adapter->pdev->dev,
3787                                 "failed to setup mbx interrupt\n");
3788                         goto done;
3789                 }
3790         }
3791
3792         if (netif_running(netdev)) {
3793                 err = qlcnic_attach(adapter);
3794                 if (err)
3795                         goto done;
3796                 err = __qlcnic_up(adapter, netdev);
3797                 if (err)
3798                         goto done;
3799                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3800         }
3801 done:
3802         netif_device_attach(netdev);
3803         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3804         return err;
3805 }
3806
3807 #ifdef CONFIG_INET
3808
3809 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
3810
3811 static void
3812 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
3813                         struct net_device *dev, unsigned long event)
3814 {
3815         struct in_device *indev;
3816
3817         indev = in_dev_get(dev);
3818         if (!indev)
3819                 return;
3820
3821         for_ifa(indev) {
3822                 switch (event) {
3823                 case NETDEV_UP:
3824                         qlcnic_config_ipaddr(adapter,
3825                                         ifa->ifa_address, QLCNIC_IP_UP);
3826                         break;
3827                 case NETDEV_DOWN:
3828                         qlcnic_config_ipaddr(adapter,
3829                                         ifa->ifa_address, QLCNIC_IP_DOWN);
3830                         break;
3831                 default:
3832                         break;
3833                 }
3834         } endfor_ifa(indev);
3835
3836         in_dev_put(indev);
3837 }
3838
3839 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
3840 {
3841         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3842         struct net_device *dev;
3843         u16 vid;
3844
3845         qlcnic_config_indev_addr(adapter, netdev, event);
3846
3847         rcu_read_lock();
3848         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
3849                 dev = __vlan_find_dev_deep(netdev, htons(ETH_P_8021Q), vid);
3850                 if (!dev)
3851                         continue;
3852                 qlcnic_config_indev_addr(adapter, dev, event);
3853         }
3854         rcu_read_unlock();
3855 }
3856
3857 static int qlcnic_netdev_event(struct notifier_block *this,
3858                                  unsigned long event, void *ptr)
3859 {
3860         struct qlcnic_adapter *adapter;
3861         struct net_device *dev = netdev_notifier_info_to_dev(ptr);
3862
3863 recheck:
3864         if (dev == NULL)
3865                 goto done;
3866
3867         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3868                 dev = vlan_dev_real_dev(dev);
3869                 goto recheck;
3870         }
3871
3872         if (!is_qlcnic_netdev(dev))
3873                 goto done;
3874
3875         adapter = netdev_priv(dev);
3876
3877         if (!adapter)
3878                 goto done;
3879
3880         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3881                 goto done;
3882
3883         qlcnic_config_indev_addr(adapter, dev, event);
3884 done:
3885         return NOTIFY_DONE;
3886 }
3887
3888 static int
3889 qlcnic_inetaddr_event(struct notifier_block *this,
3890                 unsigned long event, void *ptr)
3891 {
3892         struct qlcnic_adapter *adapter;
3893         struct net_device *dev;
3894
3895         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3896
3897         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3898
3899 recheck:
3900         if (dev == NULL)
3901                 goto done;
3902
3903         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3904                 dev = vlan_dev_real_dev(dev);
3905                 goto recheck;
3906         }
3907
3908         if (!is_qlcnic_netdev(dev))
3909                 goto done;
3910
3911         adapter = netdev_priv(dev);
3912
3913         if (!adapter)
3914                 goto done;
3915
3916         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3917                 goto done;
3918
3919         switch (event) {
3920         case NETDEV_UP:
3921                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
3922
3923                 break;
3924         case NETDEV_DOWN:
3925                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
3926
3927                 break;
3928         default:
3929                 break;
3930         }
3931
3932 done:
3933         return NOTIFY_DONE;
3934 }
3935
3936 static struct notifier_block    qlcnic_netdev_cb = {
3937         .notifier_call = qlcnic_netdev_event,
3938 };
3939
3940 static struct notifier_block qlcnic_inetaddr_cb = {
3941         .notifier_call = qlcnic_inetaddr_event,
3942 };
3943 #else
3944 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
3945 { }
3946 #endif
3947 static const struct pci_error_handlers qlcnic_err_handler = {
3948         .error_detected = qlcnic_io_error_detected,
3949         .slot_reset = qlcnic_io_slot_reset,
3950         .resume = qlcnic_io_resume,
3951 };
3952
3953 static struct pci_driver qlcnic_driver = {
3954         .name = qlcnic_driver_name,
3955         .id_table = qlcnic_pci_tbl,
3956         .probe = qlcnic_probe,
3957         .remove = qlcnic_remove,
3958 #ifdef CONFIG_PM
3959         .suspend = qlcnic_suspend,
3960         .resume = qlcnic_resume,
3961 #endif
3962         .shutdown = qlcnic_shutdown,
3963         .err_handler = &qlcnic_err_handler,
3964 #ifdef CONFIG_QLCNIC_SRIOV
3965         .sriov_configure = qlcnic_pci_sriov_configure,
3966 #endif
3967
3968 };
3969
3970 static int __init qlcnic_init_module(void)
3971 {
3972         int ret;
3973
3974         printk(KERN_INFO "%s\n", qlcnic_driver_string);
3975
3976 #ifdef CONFIG_INET
3977         register_netdevice_notifier(&qlcnic_netdev_cb);
3978         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
3979 #endif
3980
3981         ret = pci_register_driver(&qlcnic_driver);
3982         if (ret) {
3983 #ifdef CONFIG_INET
3984                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3985                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3986 #endif
3987         }
3988
3989         return ret;
3990 }
3991
3992 module_init(qlcnic_init_module);
3993
3994 static void __exit qlcnic_exit_module(void)
3995 {
3996         pci_unregister_driver(&qlcnic_driver);
3997
3998 #ifdef CONFIG_INET
3999         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4000         unregister_netdevice_notifier(&qlcnic_netdev_cb);
4001 #endif
4002 }
4003
4004 module_exit(qlcnic_exit_module);