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

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