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 #ifdef CONFIG_QLCNIC_VXLAN
  25 #include <net/vxlan.h>
  26 #endif
  27
  28 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
  29 MODULE_LICENSE("GPL");
  30 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
  31 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
  32
  33 char qlcnic_driver_name[] = "qlcnic";
  34 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
  35         "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
  36
  37 static int qlcnic_mac_learn;
  38 module_param(qlcnic_mac_learn, int, 0444);
  39 MODULE_PARM_DESC(qlcnic_mac_learn,
  40                  "Mac Filter (0=learning is disabled, 1=Driver learning is enabled, 2=FDB learning is enabled)");
  41
  42 int qlcnic_use_msi = 1;
  43 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled)");
  44 module_param_named(use_msi, qlcnic_use_msi, int, 0444);
  45
  46 int qlcnic_use_msi_x = 1;
  47 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled)");
  48 module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444);
  49
  50 int qlcnic_auto_fw_reset = 1;
  51 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled)");
  52 module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644);
  53
  54 int qlcnic_load_fw_file;
  55 MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file)");
  56 module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);
  57
  58 static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
  59 static void qlcnic_remove(struct pci_dev *pdev);
  60 static int qlcnic_open(struct net_device *netdev);
  61 static int qlcnic_close(struct net_device *netdev);
  62 static void qlcnic_tx_timeout(struct net_device *netdev);
  63 static void qlcnic_attach_work(struct work_struct *work);
  64 static void qlcnic_fwinit_work(struct work_struct *work);
  65 #ifdef CONFIG_NET_POLL_CONTROLLER
  66 static void qlcnic_poll_controller(struct net_device *netdev);
  67 #endif
  68
  69 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
  70 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
  71
  72 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
  73 static irqreturn_t qlcnic_intr(int irq, void *data);
  74 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
  75 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
  76 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data);
  77
  78 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
  79 static int qlcnic_start_firmware(struct qlcnic_adapter *);
  80
  81 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
  82 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
  83 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
  84 static int qlcnic_vlan_rx_add(struct net_device *, __be16, u16);
  85 static int qlcnic_vlan_rx_del(struct net_device *, __be16, u16);
  86
  87 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *);
  88 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *, u32);
  89 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *);
  90 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *);
  91 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *);
  92 static void qlcnic_82xx_io_resume(struct pci_dev *);
  93 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *);
  94 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *,
  95                                                       pci_channel_state_t);
  96 static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
  97 {
  98         struct qlcnic_hardware_context *ahw = adapter->ahw;
  99
 100         if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
 101                 return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
 102         else
 103                 return 1;
 104 }
 105
 106 /*  PCI Device ID Table  */
 107 #define ENTRY(device) \
 108         {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
 109         .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
 110
 111 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
 112         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
 113         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
 114         ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE834X),
 115         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE844X),
 116         ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE844X),
 117         {0,}
 118 };
 119
 120 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
 121
 122
 123 inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
 124 {
 125         writel(tx_ring->producer, tx_ring->crb_cmd_producer);
 126 }
 127
 128 static const u32 msi_tgt_status[8] = {
 129         ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
 130         ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
 131         ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
 132         ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
 133 };
 134
 135 static const u32 qlcnic_reg_tbl[] = {
 136         0x1B20A8,       /* PEG_HALT_STAT1 */
 137         0x1B20AC,       /* PEG_HALT_STAT2 */
 138         0x1B20B0,       /* FW_HEARTBEAT */
 139         0x1B2100,       /* LOCK ID */
 140         0x1B2128,       /* FW_CAPABILITIES */
 141         0x1B2138,       /* drv active */
 142         0x1B2140,       /* dev state */
 143         0x1B2144,       /* drv state */
 144         0x1B2148,       /* drv scratch */
 145         0x1B214C,       /* dev partition info */
 146         0x1B2174,       /* drv idc ver */
 147         0x1B2150,       /* fw version major */
 148         0x1B2154,       /* fw version minor */
 149         0x1B2158,       /* fw version sub */
 150         0x1B219C,       /* npar state */
 151         0x1B21FC,       /* FW_IMG_VALID */
 152         0x1B2250,       /* CMD_PEG_STATE */
 153         0x1B233C,       /* RCV_PEG_STATE */
 154         0x1B23B4,       /* ASIC TEMP */
 155         0x1B216C,       /* FW api */
 156         0x1B2170,       /* drv op mode */
 157         0x13C010,       /* flash lock */
 158         0x13C014,       /* flash unlock */
 159 };
 160
 161 static const struct qlcnic_board_info qlcnic_boards[] = {
 162         { PCI_VENDOR_ID_QLOGIC,
 163           PCI_DEVICE_ID_QLOGIC_QLE844X,
 164           0x0,
 165           0x0,
 166           "8400 series 10GbE Converged Network Adapter (TCP/IP Networking)" },
 167         { PCI_VENDOR_ID_QLOGIC,
 168           PCI_DEVICE_ID_QLOGIC_QLE834X,
 169           PCI_VENDOR_ID_QLOGIC,
 170           0x24e,
 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           0x243,
 177           "8300 Series Single 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           0x24a,
 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           0x246,
 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           0x252,
 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           0x26e,
 201           "8300 Series Dual 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           0x260,
 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           0x266,
 213           "8300 Series Single Port 10GbE Converged Network Adapter "
 214           "(TCP/IP Networking)" },
 215         { PCI_VENDOR_ID_QLOGIC,
 216           PCI_DEVICE_ID_QLOGIC_QLE834X,
 217           PCI_VENDOR_ID_QLOGIC,
 218           0x269,
 219           "8300 Series Dual Port 10GbE Converged Network Adapter "
 220           "(TCP/IP Networking)" },
 221         { PCI_VENDOR_ID_QLOGIC,
 222           PCI_DEVICE_ID_QLOGIC_QLE834X,
 223           PCI_VENDOR_ID_QLOGIC,
 224           0x271,
 225           "8300 Series Dual Port 10GbE Converged Network Adapter "
 226           "(TCP/IP Networking)" },
 227         { PCI_VENDOR_ID_QLOGIC,
 228           PCI_DEVICE_ID_QLOGIC_QLE834X,
 229           0x0, 0x0, "8300 Series 1/10GbE Controller" },
 230         { PCI_VENDOR_ID_QLOGIC,
 231           PCI_DEVICE_ID_QLOGIC_QLE824X,
 232           PCI_VENDOR_ID_QLOGIC,
 233           0x203,
 234           "8200 Series Single Port 10GbE Converged Network Adapter"
 235           "(TCP/IP Networking)" },
 236         { PCI_VENDOR_ID_QLOGIC,
 237           PCI_DEVICE_ID_QLOGIC_QLE824X,
 238           PCI_VENDOR_ID_QLOGIC,
 239           0x207,
 240           "8200 Series Dual Port 10GbE Converged Network Adapter"
 241           "(TCP/IP Networking)" },
 242         { PCI_VENDOR_ID_QLOGIC,
 243           PCI_DEVICE_ID_QLOGIC_QLE824X,
 244           PCI_VENDOR_ID_QLOGIC,
 245           0x20b,
 246           "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter" },
 247         { PCI_VENDOR_ID_QLOGIC,
 248           PCI_DEVICE_ID_QLOGIC_QLE824X,
 249           PCI_VENDOR_ID_QLOGIC,
 250           0x20c,
 251           "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter" },
 252         { PCI_VENDOR_ID_QLOGIC,
 253           PCI_DEVICE_ID_QLOGIC_QLE824X,
 254           PCI_VENDOR_ID_QLOGIC,
 255           0x20f,
 256           "3200 Series Single Port 10Gb Intelligent Ethernet Adapter" },
 257         { PCI_VENDOR_ID_QLOGIC,
 258           PCI_DEVICE_ID_QLOGIC_QLE824X,
 259           0x103c, 0x3733,
 260           "NC523SFP 10Gb 2-port Server Adapter" },
 261         { PCI_VENDOR_ID_QLOGIC,
 262           PCI_DEVICE_ID_QLOGIC_QLE824X,
 263           0x103c, 0x3346,
 264           "CN1000Q Dual Port Converged Network Adapter" },
 265         { PCI_VENDOR_ID_QLOGIC,
 266           PCI_DEVICE_ID_QLOGIC_QLE824X,
 267           PCI_VENDOR_ID_QLOGIC,
 268           0x210,
 269           "QME8242-k 10GbE Dual Port Mezzanine Card" },
 270         { PCI_VENDOR_ID_QLOGIC,
 271           PCI_DEVICE_ID_QLOGIC_QLE824X,
 272           0x0, 0x0, "cLOM8214 1/10GbE Controller" },
 273 };
 274
 275 #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)
 276
 277 static const
 278 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
 279
 280 int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
 281 {
 282         int size = sizeof(struct qlcnic_host_sds_ring) * count;
 283
 284         recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
 285
 286         return recv_ctx->sds_rings == NULL;
 287 }
 288
 289 void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
 290 {
 291         if (recv_ctx->sds_rings != NULL)
 292                 kfree(recv_ctx->sds_rings);
 293
 294         recv_ctx->sds_rings = NULL;
 295 }
 296
 297 int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
 298 {
 299         struct net_device *netdev = adapter->netdev;
 300         struct pci_dev *pdev = adapter->pdev;
 301         u8 mac_addr[ETH_ALEN];
 302         int ret;
 303
 304         ret = qlcnic_get_mac_address(adapter, mac_addr,
 305                                      adapter->ahw->pci_func);
 306         if (ret)
 307                 return ret;
 308
 309         memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
 310         memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
 311
 312         /* set station address */
 313
 314         if (!is_valid_ether_addr(netdev->dev_addr))
 315                 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
 316                                         netdev->dev_addr);
 317
 318         return 0;
 319 }
 320
 321 static void qlcnic_delete_adapter_mac(struct qlcnic_adapter *adapter)
 322 {
 323         struct qlcnic_mac_vlan_list *cur;
 324         struct list_head *head;
 325
 326         list_for_each(head, &adapter->mac_list) {
 327                 cur = list_entry(head, struct qlcnic_mac_vlan_list, list);
 328                 if (ether_addr_equal_unaligned(adapter->mac_addr, cur->mac_addr)) {
 329                         qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
 330                                                   0, QLCNIC_MAC_DEL);
 331                         list_del(&cur->list);
 332                         kfree(cur);
 333                         return;
 334                 }
 335         }
 336 }
 337
 338 static int qlcnic_set_mac(struct net_device *netdev, void *p)
 339 {
 340         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 341         struct sockaddr *addr = p;
 342
 343         if (qlcnic_sriov_vf_check(adapter))
 344                 return -EINVAL;
 345
 346         if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
 347                 return -EOPNOTSUPP;
 348
 349         if (!is_valid_ether_addr(addr->sa_data))
 350                 return -EINVAL;
 351
 352         if (ether_addr_equal_unaligned(adapter->mac_addr, addr->sa_data))
 353                 return 0;
 354
 355         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 356                 netif_device_detach(netdev);
 357                 qlcnic_napi_disable(adapter);
 358         }
 359
 360         qlcnic_delete_adapter_mac(adapter);
 361         memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
 362         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 363         qlcnic_set_multi(adapter->netdev);
 364
 365         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 366                 netif_device_attach(netdev);
 367                 qlcnic_napi_enable(adapter);
 368         }
 369         return 0;
 370 }
 371
 372 static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
 373                         struct net_device *netdev, const unsigned char *addr)
 374 {
 375         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 376         int err = -EOPNOTSUPP;
 377
 378         if (!adapter->fdb_mac_learn)
 379                 return ndo_dflt_fdb_del(ndm, tb, netdev, addr);
 380
 381         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 382                 if (is_unicast_ether_addr(addr)) {
 383                         err = dev_uc_del(netdev, addr);
 384                         if (!err)
 385                                 err = qlcnic_nic_del_mac(adapter, addr);
 386                 } else if (is_multicast_ether_addr(addr)) {
 387                         err = dev_mc_del(netdev, addr);
 388                 } else {
 389                         err =  -EINVAL;
 390                 }
 391         }
 392         return err;
 393 }
 394
 395 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 396                         struct net_device *netdev,
 397                         const unsigned char *addr, u16 flags)
 398 {
 399         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 400         int err = 0;
 401
 402         if (!adapter->fdb_mac_learn)
 403                 return ndo_dflt_fdb_add(ndm, tb, netdev, addr, flags);
 404
 405         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 406                 pr_info("%s: FDB e-switch is not enabled\n", __func__);
 407                 return -EOPNOTSUPP;
 408         }
 409
 410         if (ether_addr_equal(addr, adapter->mac_addr))
 411                 return err;
 412
 413         if (is_unicast_ether_addr(addr)) {
 414                 if (netdev_uc_count(netdev) < adapter->ahw->max_uc_count)
 415                         err = dev_uc_add_excl(netdev, addr);
 416                 else
 417                         err = -ENOMEM;
 418         } else if (is_multicast_ether_addr(addr)) {
 419                 err = dev_mc_add_excl(netdev, addr);
 420         } else {
 421                 err = -EINVAL;
 422         }
 423
 424         return err;
 425 }
 426
 427 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
 428                         struct net_device *netdev, int idx)
 429 {
 430         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 431
 432         if (!adapter->fdb_mac_learn)
 433                 return ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
 434
 435         if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
 436                 idx = ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
 437
 438         return idx;
 439 }
 440
 441 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
 442 {
 443         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
 444                 usleep_range(10000, 11000);
 445
 446         if (!adapter->fw_work.work.func)
 447                 return;
 448
 449         cancel_delayed_work_sync(&adapter->fw_work);
 450 }
 451
 452 static int qlcnic_get_phys_port_id(struct net_device *netdev,
 453                                    struct netdev_phys_port_id *ppid)
 454 {
 455         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 456         struct qlcnic_hardware_context *ahw = adapter->ahw;
 457
 458         if (!(adapter->flags & QLCNIC_HAS_PHYS_PORT_ID))
 459                 return -EOPNOTSUPP;
 460
 461         ppid->id_len = sizeof(ahw->phys_port_id);
 462         memcpy(ppid->id, ahw->phys_port_id, ppid->id_len);
 463
 464         return 0;
 465 }
 466
 467 #ifdef CONFIG_QLCNIC_VXLAN
 468 static void qlcnic_add_vxlan_port(struct net_device *netdev,
 469                                   sa_family_t sa_family, __be16 port)
 470 {
 471         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 472         struct qlcnic_hardware_context *ahw = adapter->ahw;
 473
 474         /* Adapter supports only one VXLAN port. Use very first port
 475          * for enabling offload
 476          */
 477         if (!qlcnic_encap_rx_offload(adapter) || ahw->vxlan_port)
 478                 return;
 479
 480         ahw->vxlan_port = ntohs(port);
 481         adapter->flags |= QLCNIC_ADD_VXLAN_PORT;
 482 }
 483
 484 static void qlcnic_del_vxlan_port(struct net_device *netdev,
 485                                   sa_family_t sa_family, __be16 port)
 486 {
 487         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 488         struct qlcnic_hardware_context *ahw = adapter->ahw;
 489
 490         if (!qlcnic_encap_rx_offload(adapter) || !ahw->vxlan_port ||
 491             (ahw->vxlan_port != ntohs(port)))
 492                 return;
 493
 494         adapter->flags |= QLCNIC_DEL_VXLAN_PORT;
 495 }
 496 #endif
 497
 498 static const struct net_device_ops qlcnic_netdev_ops = {
 499         .ndo_open          = qlcnic_open,
 500         .ndo_stop          = qlcnic_close,
 501         .ndo_start_xmit    = qlcnic_xmit_frame,
 502         .ndo_get_stats     = qlcnic_get_stats,
 503         .ndo_validate_addr = eth_validate_addr,
 504         .ndo_set_rx_mode   = qlcnic_set_multi,
 505         .ndo_set_mac_address    = qlcnic_set_mac,
 506         .ndo_change_mtu    = qlcnic_change_mtu,
 507         .ndo_fix_features  = qlcnic_fix_features,
 508         .ndo_set_features  = qlcnic_set_features,
 509         .ndo_tx_timeout    = qlcnic_tx_timeout,
 510         .ndo_vlan_rx_add_vid    = qlcnic_vlan_rx_add,
 511         .ndo_vlan_rx_kill_vid   = qlcnic_vlan_rx_del,
 512         .ndo_fdb_add            = qlcnic_fdb_add,
 513         .ndo_fdb_del            = qlcnic_fdb_del,
 514         .ndo_fdb_dump           = qlcnic_fdb_dump,
 515         .ndo_get_phys_port_id   = qlcnic_get_phys_port_id,
 516 #ifdef CONFIG_QLCNIC_VXLAN
 517         .ndo_add_vxlan_port     = qlcnic_add_vxlan_port,
 518         .ndo_del_vxlan_port     = qlcnic_del_vxlan_port,
 519 #endif
 520 #ifdef CONFIG_NET_POLL_CONTROLLER
 521         .ndo_poll_controller = qlcnic_poll_controller,
 522 #endif
 523 #ifdef CONFIG_QLCNIC_SRIOV
 524         .ndo_set_vf_mac         = qlcnic_sriov_set_vf_mac,
 525         .ndo_set_vf_tx_rate     = qlcnic_sriov_set_vf_tx_rate,
 526         .ndo_get_vf_config      = qlcnic_sriov_get_vf_config,
 527         .ndo_set_vf_vlan        = qlcnic_sriov_set_vf_vlan,
 528         .ndo_set_vf_spoofchk    = qlcnic_sriov_set_vf_spoofchk,
 529 #endif
 530 };
 531
 532 static const struct net_device_ops qlcnic_netdev_failed_ops = {
 533         .ndo_open          = qlcnic_open,
 534 };
 535
 536 static struct qlcnic_nic_template qlcnic_ops = {
 537         .config_bridged_mode    = qlcnic_config_bridged_mode,
 538         .config_led             = qlcnic_82xx_config_led,
 539         .start_firmware         = qlcnic_82xx_start_firmware,
 540         .request_reset          = qlcnic_82xx_dev_request_reset,
 541         .cancel_idc_work        = qlcnic_82xx_cancel_idc_work,
 542         .napi_add               = qlcnic_82xx_napi_add,
 543         .napi_del               = qlcnic_82xx_napi_del,
 544         .config_ipaddr          = qlcnic_82xx_config_ipaddr,
 545         .shutdown               = qlcnic_82xx_shutdown,
 546         .resume                 = qlcnic_82xx_resume,
 547         .clear_legacy_intr      = qlcnic_82xx_clear_legacy_intr,
 548 };
 549
 550 struct qlcnic_nic_template qlcnic_vf_ops = {
 551         .config_bridged_mode    = qlcnicvf_config_bridged_mode,
 552         .config_led             = qlcnicvf_config_led,
 553         .start_firmware         = qlcnicvf_start_firmware
 554 };
 555
 556 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
 557         .read_crb                       = qlcnic_82xx_read_crb,
 558         .write_crb                      = qlcnic_82xx_write_crb,
 559         .read_reg                       = qlcnic_82xx_hw_read_wx_2M,
 560         .write_reg                      = qlcnic_82xx_hw_write_wx_2M,
 561         .get_mac_address                = qlcnic_82xx_get_mac_address,
 562         .setup_intr                     = qlcnic_82xx_setup_intr,
 563         .alloc_mbx_args                 = qlcnic_82xx_alloc_mbx_args,
 564         .mbx_cmd                        = qlcnic_82xx_issue_cmd,
 565         .get_func_no                    = qlcnic_82xx_get_func_no,
 566         .api_lock                       = qlcnic_82xx_api_lock,
 567         .api_unlock                     = qlcnic_82xx_api_unlock,
 568         .add_sysfs                      = qlcnic_82xx_add_sysfs,
 569         .remove_sysfs                   = qlcnic_82xx_remove_sysfs,
 570         .process_lb_rcv_ring_diag       = qlcnic_82xx_process_rcv_ring_diag,
 571         .create_rx_ctx                  = qlcnic_82xx_fw_cmd_create_rx_ctx,
 572         .create_tx_ctx                  = qlcnic_82xx_fw_cmd_create_tx_ctx,
 573         .del_rx_ctx                     = qlcnic_82xx_fw_cmd_del_rx_ctx,
 574         .del_tx_ctx                     = qlcnic_82xx_fw_cmd_del_tx_ctx,
 575         .setup_link_event               = qlcnic_82xx_linkevent_request,
 576         .get_nic_info                   = qlcnic_82xx_get_nic_info,
 577         .get_pci_info                   = qlcnic_82xx_get_pci_info,
 578         .set_nic_info                   = qlcnic_82xx_set_nic_info,
 579         .change_macvlan                 = qlcnic_82xx_sre_macaddr_change,
 580         .napi_enable                    = qlcnic_82xx_napi_enable,
 581         .napi_disable                   = qlcnic_82xx_napi_disable,
 582         .config_intr_coal               = qlcnic_82xx_config_intr_coalesce,
 583         .config_rss                     = qlcnic_82xx_config_rss,
 584         .config_hw_lro                  = qlcnic_82xx_config_hw_lro,
 585         .config_loopback                = qlcnic_82xx_set_lb_mode,
 586         .clear_loopback                 = qlcnic_82xx_clear_lb_mode,
 587         .config_promisc_mode            = qlcnic_82xx_nic_set_promisc,
 588         .change_l2_filter               = qlcnic_82xx_change_filter,
 589         .get_board_info                 = qlcnic_82xx_get_board_info,
 590         .set_mac_filter_count           = qlcnic_82xx_set_mac_filter_count,
 591         .free_mac_list                  = qlcnic_82xx_free_mac_list,
 592         .read_phys_port_id              = qlcnic_82xx_read_phys_port_id,
 593         .io_error_detected              = qlcnic_82xx_io_error_detected,
 594         .io_slot_reset                  = qlcnic_82xx_io_slot_reset,
 595         .io_resume                      = qlcnic_82xx_io_resume,
 596         .get_beacon_state               = qlcnic_82xx_get_beacon_state,
 597         .enable_sds_intr                = qlcnic_82xx_enable_sds_intr,
 598         .disable_sds_intr               = qlcnic_82xx_disable_sds_intr,
 599         .enable_tx_intr                 = qlcnic_82xx_enable_tx_intr,
 600         .disable_tx_intr                = qlcnic_82xx_disable_tx_intr,
 601         .get_saved_state                = qlcnic_82xx_get_saved_state,
 602         .set_saved_state                = qlcnic_82xx_set_saved_state,
 603         .cache_tmpl_hdr_values          = qlcnic_82xx_cache_tmpl_hdr_values,
 604         .get_cap_size                   = qlcnic_82xx_get_cap_size,
 605         .set_sys_info                   = qlcnic_82xx_set_sys_info,
 606         .store_cap_mask                 = qlcnic_82xx_store_cap_mask,
 607 };
 608
 609 static int qlcnic_check_multi_tx_capability(struct qlcnic_adapter *adapter)
 610 {
 611         struct qlcnic_hardware_context *ahw = adapter->ahw;
 612
 613         if (qlcnic_82xx_check(adapter) &&
 614             (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_MULTI_TX)) {
 615                 test_and_set_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
 616                 return 0;
 617         } else {
 618                 return 1;
 619         }
 620 }
 621
 622 static int qlcnic_max_rings(struct qlcnic_adapter *adapter, u8 ring_cnt,
 623                             int queue_type)
 624 {
 625         int num_rings, max_rings = QLCNIC_MAX_SDS_RINGS;
 626
 627         if (queue_type == QLCNIC_RX_QUEUE)
 628                 max_rings = adapter->max_sds_rings;
 629         else if (queue_type == QLCNIC_TX_QUEUE)
 630                 max_rings = adapter->max_tx_rings;
 631
 632         num_rings = rounddown_pow_of_two(min_t(int, num_online_cpus(),
 633                                               max_rings));
 634
 635         if (ring_cnt > num_rings)
 636                 return num_rings;
 637         else
 638                 return ring_cnt;
 639 }
 640
 641 void qlcnic_set_tx_ring_count(struct qlcnic_adapter *adapter, u8 tx_cnt)
 642 {
 643         /* 83xx adapter does not have max_tx_rings intialized in probe */
 644         if (adapter->max_tx_rings)
 645                 adapter->drv_tx_rings = qlcnic_max_rings(adapter, tx_cnt,
 646                                                          QLCNIC_TX_QUEUE);
 647         else
 648                 adapter->drv_tx_rings = tx_cnt;
 649 }
 650
 651 void qlcnic_set_sds_ring_count(struct qlcnic_adapter *adapter, u8 rx_cnt)
 652 {
 653         /* 83xx adapter does not have max_sds_rings intialized in probe */
 654         if (adapter->max_sds_rings)
 655                 adapter->drv_sds_rings = qlcnic_max_rings(adapter, rx_cnt,
 656                                                           QLCNIC_RX_QUEUE);
 657         else
 658                 adapter->drv_sds_rings = rx_cnt;
 659 }
 660
 661 int qlcnic_setup_tss_rss_intr(struct qlcnic_adapter *adapter)
 662 {
 663         struct pci_dev *pdev = adapter->pdev;
 664         int num_msix = 0, err = 0, vector;
 665
 666         adapter->flags &= ~QLCNIC_TSS_RSS;
 667
 668         if (adapter->drv_tss_rings > 0)
 669                 num_msix += adapter->drv_tss_rings;
 670         else
 671                 num_msix += adapter->drv_tx_rings;
 672
 673         if (adapter->drv_rss_rings > 0)
 674                 num_msix += adapter->drv_rss_rings;
 675         else
 676                 num_msix += adapter->drv_sds_rings;
 677
 678         if (qlcnic_83xx_check(adapter))
 679                 num_msix += 1;
 680
 681         if (!adapter->msix_entries) {
 682                 adapter->msix_entries = kcalloc(num_msix,
 683                                                 sizeof(struct msix_entry),
 684                                                 GFP_KERNEL);
 685                 if (!adapter->msix_entries)
 686                         return -ENOMEM;
 687         }
 688
 689         for (vector = 0; vector < num_msix; vector++)
 690                 adapter->msix_entries[vector].entry = vector;
 691
 692 restore:
 693         err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
 694         if (err > 0) {
 695                 if (!adapter->drv_tss_rings && !adapter->drv_rss_rings)
 696                         return -ENOSPC;
 697
 698                 netdev_info(adapter->netdev,
 699                             "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
 700                             num_msix, err);
 701
 702                 num_msix = adapter->drv_tx_rings + adapter->drv_sds_rings;
 703
 704                 /* Set rings to 0 so we can restore original TSS/RSS count */
 705                 adapter->drv_tss_rings = 0;
 706                 adapter->drv_rss_rings = 0;
 707
 708                 if (qlcnic_83xx_check(adapter))
 709                         num_msix += 1;
 710
 711                 netdev_info(adapter->netdev,
 712                             "Restoring %d Tx, %d SDS rings for total %d vectors.\n",
 713                             adapter->drv_tx_rings, adapter->drv_sds_rings,
 714                             num_msix);
 715
 716                 goto restore;
 717         } else if (err < 0) {
 718                 return err;
 719         }
 720
 721         adapter->ahw->num_msix = num_msix;
 722         if (adapter->drv_tss_rings > 0)
 723                 adapter->drv_tx_rings = adapter->drv_tss_rings;
 724
 725         if (adapter->drv_rss_rings > 0)
 726                 adapter->drv_sds_rings = adapter->drv_rss_rings;
 727
 728         return 0;
 729 }
 730
 731 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 732 {
 733         struct pci_dev *pdev = adapter->pdev;
 734         int err, vector;
 735
 736         if (!adapter->msix_entries) {
 737                 adapter->msix_entries = kcalloc(num_msix,
 738                                                 sizeof(struct msix_entry),
 739                                                 GFP_KERNEL);
 740                 if (!adapter->msix_entries)
 741                         return -ENOMEM;
 742         }
 743
 744         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 745
 746         if (adapter->ahw->msix_supported) {
 747 enable_msix:
 748                 for (vector = 0; vector < num_msix; vector++)
 749                         adapter->msix_entries[vector].entry = vector;
 750
 751                 err = pci_enable_msix_range(pdev,
 752                                             adapter->msix_entries, 1, num_msix);
 753
 754                 if (err == num_msix) {
 755                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 756                         adapter->ahw->num_msix = num_msix;
 757                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 758                         return 0;
 759                 } else if (err > 0) {
 760                         pci_disable_msix(pdev);
 761
 762                         dev_info(&pdev->dev,
 763                                  "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
 764                                  num_msix, err);
 765
 766                         if (qlcnic_82xx_check(adapter)) {
 767                                 num_msix = rounddown_pow_of_two(err);
 768                                 if (err < QLCNIC_82XX_MINIMUM_VECTOR)
 769                                         return -ENOSPC;
 770                         } else {
 771                                 num_msix = rounddown_pow_of_two(err - 1);
 772                                 num_msix += 1;
 773                                 if (err < QLCNIC_83XX_MINIMUM_VECTOR)
 774                                         return -ENOSPC;
 775                         }
 776
 777                         if (qlcnic_82xx_check(adapter) &&
 778                             !qlcnic_check_multi_tx(adapter)) {
 779                                 adapter->drv_sds_rings = num_msix;
 780                                 adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
 781                         } else {
 782                                 /* Distribute vectors equally */
 783                                 adapter->drv_tx_rings = num_msix / 2;
 784                                 adapter->drv_sds_rings = adapter->drv_tx_rings;
 785                         }
 786
 787                         if (num_msix) {
 788                                 dev_info(&pdev->dev,
 789                                          "Trying to allocate %d MSI-X interrupt vectors\n",
 790                                          num_msix);
 791                                 goto enable_msix;
 792                         }
 793                 } else {
 794                         dev_info(&pdev->dev,
 795                                  "Unable to allocate %d MSI-X vectors, err=%d\n",
 796                                  num_msix, err);
 797                         return err;
 798                 }
 799         }
 800
 801         return -EIO;
 802 }
 803
 804 static int qlcnic_82xx_calculate_msix_vector(struct qlcnic_adapter *adapter)
 805 {
 806         int num_msix;
 807
 808         num_msix = adapter->drv_sds_rings;
 809
 810         if (qlcnic_check_multi_tx(adapter))
 811                 num_msix += adapter->drv_tx_rings;
 812         else
 813                 num_msix += QLCNIC_SINGLE_RING;
 814
 815         return num_msix;
 816 }
 817
 818 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
 819 {
 820         int err = 0;
 821         u32 offset, mask_reg;
 822         const struct qlcnic_legacy_intr_set *legacy_intrp;
 823         struct qlcnic_hardware_context *ahw = adapter->ahw;
 824         struct pci_dev *pdev = adapter->pdev;
 825
 826         if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
 827                 adapter->flags |= QLCNIC_MSI_ENABLED;
 828                 offset = msi_tgt_status[adapter->ahw->pci_func];
 829                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
 830                                                             offset);
 831                 dev_info(&pdev->dev, "using msi interrupts\n");
 832                 adapter->msix_entries[0].vector = pdev->irq;
 833                 return err;
 834         }
 835
 836         if (qlcnic_use_msi || qlcnic_use_msi_x)
 837                 return -EOPNOTSUPP;
 838
 839         legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
 840         adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
 841         offset = legacy_intrp->tgt_status_reg;
 842         adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
 843         mask_reg = legacy_intrp->tgt_mask_reg;
 844         adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
 845         adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
 846         adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
 847         dev_info(&pdev->dev, "using legacy interrupts\n");
 848         adapter->msix_entries[0].vector = pdev->irq;
 849         return err;
 850 }
 851
 852 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter)
 853 {
 854         int num_msix, err = 0;
 855
 856         if (adapter->flags & QLCNIC_TSS_RSS) {
 857                 err = qlcnic_setup_tss_rss_intr(adapter);
 858                 if (err < 0)
 859                         return err;
 860                 num_msix = adapter->ahw->num_msix;
 861         } else {
 862                 num_msix = qlcnic_82xx_calculate_msix_vector(adapter);
 863
 864                 err = qlcnic_enable_msix(adapter, num_msix);
 865                 if (err == -ENOMEM)
 866                         return err;
 867
 868                 if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
 869                         qlcnic_disable_multi_tx(adapter);
 870                         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
 871
 872                         err = qlcnic_enable_msi_legacy(adapter);
 873                         if (err)
 874                                 return err;
 875                 }
 876         }
 877
 878         return 0;
 879 }
 880
 881 int qlcnic_82xx_mq_intrpt(struct qlcnic_adapter *adapter, int op_type)
 882 {
 883         struct qlcnic_hardware_context *ahw = adapter->ahw;
 884         int err, i;
 885
 886         if (qlcnic_check_multi_tx(adapter) &&
 887             !ahw->diag_test &&
 888             (adapter->flags & QLCNIC_MSIX_ENABLED)) {
 889                 ahw->intr_tbl = vzalloc(ahw->num_msix *
 890                                         sizeof(struct qlcnic_intrpt_config));
 891                 if (!ahw->intr_tbl)
 892                         return -ENOMEM;
 893
 894                 for (i = 0; i < ahw->num_msix; i++) {
 895                         ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
 896                         ahw->intr_tbl[i].id = i;
 897                         ahw->intr_tbl[i].src = 0;
 898                 }
 899
 900                 err = qlcnic_82xx_config_intrpt(adapter, 1);
 901                 if (err)
 902                         dev_err(&adapter->pdev->dev,
 903                                 "Failed to configure Interrupt for %d vector\n",
 904                                 ahw->num_msix);
 905                 return err;
 906         }
 907
 908         return 0;
 909 }
 910
 911 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 912 {
 913         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 914                 pci_disable_msix(adapter->pdev);
 915         if (adapter->flags & QLCNIC_MSI_ENABLED)
 916                 pci_disable_msi(adapter->pdev);
 917
 918         kfree(adapter->msix_entries);
 919         adapter->msix_entries = NULL;
 920
 921         if (adapter->ahw->intr_tbl) {
 922                 vfree(adapter->ahw->intr_tbl);
 923                 adapter->ahw->intr_tbl = NULL;
 924         }
 925 }
 926
 927 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
 928 {
 929         if (ahw->pci_base0 != NULL)
 930                 iounmap(ahw->pci_base0);
 931 }
 932
 933 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
 934 {
 935         struct qlcnic_hardware_context *ahw = adapter->ahw;
 936         struct qlcnic_pci_info *pci_info;
 937         int ret;
 938
 939         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 940                 switch (ahw->port_type) {
 941                 case QLCNIC_GBE:
 942                         ahw->total_nic_func = QLCNIC_NIU_MAX_GBE_PORTS;
 943                         break;
 944                 case QLCNIC_XGBE:
 945                         ahw->total_nic_func = QLCNIC_NIU_MAX_XG_PORTS;
 946                         break;
 947                 }
 948                 return 0;
 949         }
 950
 951         if (ahw->op_mode == QLCNIC_MGMT_FUNC)
 952                 return 0;
 953
 954         pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
 955         if (!pci_info)
 956                 return -ENOMEM;
 957
 958         ret = qlcnic_get_pci_info(adapter, pci_info);
 959         kfree(pci_info);
 960         return ret;
 961 }
 962
 963 static bool qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter *adapter)
 964 {
 965         bool ret = false;
 966
 967         if (qlcnic_84xx_check(adapter)) {
 968                 ret = true;
 969         } else if (qlcnic_83xx_check(adapter)) {
 970                 if (adapter->ahw->extra_capability[0] &
 971                     QLCNIC_FW_CAPABILITY_2_PER_PORT_ESWITCH_CFG)
 972                         ret = true;
 973                 else
 974                         ret = false;
 975         }
 976
 977         return ret;
 978 }
 979
 980 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 981 {
 982         struct qlcnic_hardware_context *ahw = adapter->ahw;
 983         struct qlcnic_pci_info *pci_info;
 984         int i, id = 0, ret = 0, j = 0;
 985         u16 act_pci_func;
 986         u8 pfn;
 987
 988         pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
 989         if (!pci_info)
 990                 return -ENOMEM;
 991
 992         ret = qlcnic_get_pci_info(adapter, pci_info);
 993         if (ret)
 994                 goto err_pci_info;
 995
 996         act_pci_func = ahw->total_nic_func;
 997
 998         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
 999                                  act_pci_func, GFP_KERNEL);
1000         if (!adapter->npars) {
1001                 ret = -ENOMEM;
1002                 goto err_pci_info;
1003         }
1004
1005         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
1006                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
1007         if (!adapter->eswitch) {
1008                 ret = -ENOMEM;
1009                 goto err_npars;
1010         }
1011
1012         for (i = 0; i < ahw->max_vnic_func; i++) {
1013                 pfn = pci_info[i].id;
1014
1015                 if (pfn >= ahw->max_vnic_func) {
1016                         ret = QL_STATUS_INVALID_PARAM;
1017                         goto err_eswitch;
1018                 }
1019
1020                 if (!pci_info[i].active ||
1021                     (pci_info[i].type != QLCNIC_TYPE_NIC))
1022                         continue;
1023
1024                 if (qlcnic_port_eswitch_cfg_capability(adapter)) {
1025                         if (!qlcnic_83xx_set_port_eswitch_status(adapter, pfn,
1026                                                                  &id))
1027                                 adapter->npars[j].eswitch_status = true;
1028                         else
1029                                 continue;
1030                 } else {
1031                         adapter->npars[j].eswitch_status = true;
1032                 }
1033
1034                 adapter->npars[j].pci_func = pfn;
1035                 adapter->npars[j].active = (u8)pci_info[i].active;
1036                 adapter->npars[j].type = (u8)pci_info[i].type;
1037                 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
1038                 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
1039                 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
1040
1041                 memcpy(&adapter->npars[j].mac, &pci_info[i].mac, ETH_ALEN);
1042                 j++;
1043         }
1044
1045         /* Update eSwitch status for adapters without per port eSwitch
1046          * configuration capability
1047          */
1048         if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
1049                 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
1050                         adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
1051         }
1052
1053         kfree(pci_info);
1054         return 0;
1055
1056 err_eswitch:
1057         kfree(adapter->eswitch);
1058         adapter->eswitch = NULL;
1059 err_npars:
1060         kfree(adapter->npars);
1061         adapter->npars = NULL;
1062 err_pci_info:
1063         kfree(pci_info);
1064
1065         return ret;
1066 }
1067
1068 static int
1069 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
1070 {
1071         u8 id;
1072         int ret;
1073         u32 data = QLCNIC_MGMT_FUNC;
1074         struct qlcnic_hardware_context *ahw = adapter->ahw;
1075
1076         ret = qlcnic_api_lock(adapter);
1077         if (ret)
1078                 goto err_lock;
1079
1080         id = ahw->pci_func;
1081         data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1082         data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
1083                QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
1084         QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
1085         qlcnic_api_unlock(adapter);
1086 err_lock:
1087         return ret;
1088 }
1089
1090 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
1091                             const struct pci_device_id *ent)
1092 {
1093         u32 op_mode, priv_level;
1094
1095         /* Determine FW API version */
1096         adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
1097                                                            QLCNIC_FW_API);
1098
1099         /* Find PCI function number */
1100         qlcnic_get_func_no(adapter);
1101
1102         /* Determine function privilege level */
1103         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1104         if (op_mode == QLC_DEV_DRV_DEFAULT)
1105                 priv_level = QLCNIC_MGMT_FUNC;
1106         else
1107                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1108
1109         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
1110                 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
1111                 dev_info(&adapter->pdev->dev,
1112                         "HAL Version: %d Non Privileged function\n",
1113                          adapter->ahw->fw_hal_version);
1114                 adapter->nic_ops = &qlcnic_vf_ops;
1115         } else
1116                 adapter->nic_ops = &qlcnic_ops;
1117 }
1118
1119 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
1120 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
1121 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
1122 {
1123         switch (dev_id) {
1124         case PCI_DEVICE_ID_QLOGIC_QLE824X:
1125                 *bar = QLCNIC_82XX_BAR0_LENGTH;
1126                 break;
1127         case PCI_DEVICE_ID_QLOGIC_QLE834X:
1128         case PCI_DEVICE_ID_QLOGIC_QLE844X:
1129         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
1130         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
1131                 *bar = QLCNIC_83XX_BAR0_LENGTH;
1132                 break;
1133         default:
1134                 *bar = 0;
1135         }
1136 }
1137
1138 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
1139                                 struct qlcnic_hardware_context *ahw)
1140 {
1141         u32 offset;
1142         void __iomem *mem_ptr0 = NULL;
1143         unsigned long mem_len, pci_len0 = 0, bar0_len;
1144
1145         /* remap phys address */
1146         mem_len = pci_resource_len(pdev, 0);
1147
1148         qlcnic_get_bar_length(pdev->device, &bar0_len);
1149         if (mem_len >= bar0_len) {
1150
1151                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
1152                 if (mem_ptr0 == NULL) {
1153                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
1154                         return -EIO;
1155                 }
1156                 pci_len0 = mem_len;
1157         } else {
1158                 return -EIO;
1159         }
1160
1161         dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
1162
1163         ahw->pci_base0 = mem_ptr0;
1164         ahw->pci_len0 = pci_len0;
1165         offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
1166         qlcnic_get_ioaddr(ahw, offset);
1167
1168         return 0;
1169 }
1170
1171 static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
1172                                          int index)
1173 {
1174         struct pci_dev *pdev = adapter->pdev;
1175         unsigned short subsystem_vendor;
1176         bool ret = true;
1177
1178         subsystem_vendor = pdev->subsystem_vendor;
1179
1180         if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
1181             pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1182                 if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
1183                     qlcnic_boards[index].sub_device == pdev->subsystem_device)
1184                         ret = true;
1185                 else
1186                         ret = false;
1187         }
1188
1189         return ret;
1190 }
1191
1192 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
1193 {
1194         struct pci_dev *pdev = adapter->pdev;
1195         int i, found = 0;
1196
1197         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1198                 if (qlcnic_boards[i].vendor == pdev->vendor &&
1199                     qlcnic_boards[i].device == pdev->device &&
1200                     qlcnic_validate_subsystem_id(adapter, i)) {
1201                         found = 1;
1202                         break;
1203                 }
1204         }
1205
1206         if (!found)
1207                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
1208         else
1209                 sprintf(name, "%pM: %s" , adapter->mac_addr,
1210                         qlcnic_boards[i].short_name);
1211 }
1212
1213 static void
1214 qlcnic_check_options(struct qlcnic_adapter *adapter)
1215 {
1216         int err;
1217         u32 fw_major, fw_minor, fw_build, prev_fw_version;
1218         struct pci_dev *pdev = adapter->pdev;
1219         struct qlcnic_hardware_context *ahw = adapter->ahw;
1220         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
1221
1222         prev_fw_version = adapter->fw_version;
1223
1224         fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
1225         fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
1226         fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
1227
1228         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
1229
1230         err = qlcnic_get_board_info(adapter);
1231         if (err) {
1232                 dev_err(&pdev->dev, "Error getting board config info.\n");
1233                 return;
1234         }
1235         if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
1236                 if (fw_dump->tmpl_hdr == NULL ||
1237                                 adapter->fw_version > prev_fw_version) {
1238                         if (fw_dump->tmpl_hdr)
1239                                 vfree(fw_dump->tmpl_hdr);
1240                         if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1241                                 dev_info(&pdev->dev,
1242                                         "Supports FW dump capability\n");
1243                 }
1244         }
1245
1246         dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
1247                  QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
1248
1249         if (adapter->ahw->port_type == QLCNIC_XGBE) {
1250                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1251                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
1252                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
1253                 } else {
1254                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
1255                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
1256                 }
1257
1258                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1259                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1260
1261         } else if (adapter->ahw->port_type == QLCNIC_GBE) {
1262                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
1263                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1264                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1265                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
1266         }
1267
1268         adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
1269
1270         adapter->num_txd = MAX_CMD_DESCRIPTORS;
1271
1272         adapter->max_rds_rings = MAX_RDS_RINGS;
1273 }
1274
1275 static int
1276 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
1277 {
1278         struct qlcnic_info nic_info;
1279         int err = 0;
1280
1281         memset(&nic_info, 0, sizeof(struct qlcnic_info));
1282         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
1283         if (err)
1284                 return err;
1285
1286         adapter->ahw->physical_port = (u8)nic_info.phys_port;
1287         adapter->ahw->switch_mode = nic_info.switch_mode;
1288         adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
1289         adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
1290         adapter->ahw->capabilities = nic_info.capabilities;
1291
1292         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1293                 u32 temp;
1294                 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
1295                 if (err == -EIO)
1296                         return err;
1297                 adapter->ahw->extra_capability[0] = temp;
1298         } else {
1299                 adapter->ahw->extra_capability[0] = 0;
1300         }
1301
1302         adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1303         adapter->ahw->max_mtu = nic_info.max_mtu;
1304
1305         if (adapter->ahw->capabilities & BIT_6) {
1306                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1307                 adapter->ahw->nic_mode = QLCNIC_VNIC_MODE;
1308                 adapter->max_tx_rings = QLCNIC_MAX_HW_VNIC_TX_RINGS;
1309                 adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
1310
1311                 dev_info(&adapter->pdev->dev, "vNIC mode enabled.\n");
1312         } else {
1313                 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1314                 adapter->max_tx_rings = QLCNIC_MAX_HW_TX_RINGS;
1315                 adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
1316                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1317         }
1318
1319         return err;
1320 }
1321
1322 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1323                             struct qlcnic_esw_func_cfg *esw_cfg)
1324 {
1325         if (esw_cfg->discard_tagged)
1326                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1327         else
1328                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1329
1330         if (esw_cfg->vlan_id) {
1331                 adapter->rx_pvid = esw_cfg->vlan_id;
1332                 adapter->tx_pvid = esw_cfg->vlan_id;
1333         } else {
1334                 adapter->rx_pvid = 0;
1335                 adapter->tx_pvid = 0;
1336         }
1337 }
1338
1339 static int
1340 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1341 {
1342         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1343         int err;
1344
1345         if (qlcnic_sriov_vf_check(adapter)) {
1346                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1347                 if (err) {
1348                         netdev_err(netdev,
1349                                    "Cannot add VLAN filter for VLAN id %d, err=%d",
1350                                    vid, err);
1351                         return err;
1352                 }
1353         }
1354
1355         set_bit(vid, adapter->vlans);
1356         return 0;
1357 }
1358
1359 static int
1360 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1361 {
1362         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1363         int err;
1364
1365         if (qlcnic_sriov_vf_check(adapter)) {
1366                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1367                 if (err) {
1368                         netdev_err(netdev,
1369                                    "Cannot delete VLAN filter for VLAN id %d, err=%d",
1370                                    vid, err);
1371                         return err;
1372                 }
1373         }
1374
1375         qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1376         clear_bit(vid, adapter->vlans);
1377         return 0;
1378 }
1379
1380 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1381                                       struct qlcnic_esw_func_cfg *esw_cfg)
1382 {
1383         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1384                                 QLCNIC_PROMISC_DISABLED);
1385
1386         if (esw_cfg->mac_anti_spoof)
1387                 adapter->flags |= QLCNIC_MACSPOOF;
1388
1389         if (!esw_cfg->mac_override)
1390                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1391
1392         if (!esw_cfg->promisc_mode)
1393                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1394 }
1395
1396 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1397 {
1398         struct qlcnic_esw_func_cfg esw_cfg;
1399
1400         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1401                 return 0;
1402
1403         esw_cfg.pci_func = adapter->ahw->pci_func;
1404         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1405                         return -EIO;
1406         qlcnic_set_vlan_config(adapter, &esw_cfg);
1407         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1408         qlcnic_set_netdev_features(adapter, &esw_cfg);
1409
1410         return 0;
1411 }
1412
1413 void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1414                                 struct qlcnic_esw_func_cfg *esw_cfg)
1415 {
1416         struct net_device *netdev = adapter->netdev;
1417
1418         if (qlcnic_83xx_check(adapter))
1419                 return;
1420
1421         adapter->offload_flags = esw_cfg->offload_flags;
1422         adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1423         netdev_update_features(netdev);
1424         adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1425 }
1426
1427 static int
1428 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1429 {
1430         u32 op_mode, priv_level;
1431         int err = 0;
1432
1433         err = qlcnic_initialize_nic(adapter);
1434         if (err)
1435                 return err;
1436
1437         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1438                 return 0;
1439
1440         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1441         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1442
1443         if (op_mode == QLC_DEV_DRV_DEFAULT)
1444                 priv_level = QLCNIC_MGMT_FUNC;
1445         else
1446                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1447
1448         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1449                 if (priv_level == QLCNIC_MGMT_FUNC) {
1450                         adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1451                         err = qlcnic_init_pci_info(adapter);
1452                         if (err)
1453                                 return err;
1454                         /* Set privilege level for other functions */
1455                         qlcnic_set_function_modes(adapter);
1456                         dev_info(&adapter->pdev->dev,
1457                                 "HAL Version: %d, Management function\n",
1458                                  adapter->ahw->fw_hal_version);
1459                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1460                         adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1461                         dev_info(&adapter->pdev->dev,
1462                                 "HAL Version: %d, Privileged function\n",
1463                                  adapter->ahw->fw_hal_version);
1464                 }
1465         } else {
1466                 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1467         }
1468
1469         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1470
1471         return err;
1472 }
1473
1474 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1475 {
1476         struct qlcnic_esw_func_cfg esw_cfg;
1477         struct qlcnic_npar_info *npar;
1478         u8 i;
1479
1480         if (adapter->need_fw_reset)
1481                 return 0;
1482
1483         for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1484                 if (!adapter->npars[i].eswitch_status)
1485                         continue;
1486
1487                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1488                 esw_cfg.pci_func = adapter->npars[i].pci_func;
1489                 esw_cfg.mac_override = BIT_0;
1490                 esw_cfg.promisc_mode = BIT_0;
1491                 if (qlcnic_82xx_check(adapter)) {
1492                         esw_cfg.offload_flags = BIT_0;
1493                         if (QLCNIC_IS_TSO_CAPABLE(adapter))
1494                                 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1495                 }
1496                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1497                         return -EIO;
1498                 npar = &adapter->npars[i];
1499                 npar->pvid = esw_cfg.vlan_id;
1500                 npar->mac_override = esw_cfg.mac_override;
1501                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1502                 npar->discard_tagged = esw_cfg.discard_tagged;
1503                 npar->promisc_mode = esw_cfg.promisc_mode;
1504                 npar->offload_flags = esw_cfg.offload_flags;
1505         }
1506
1507         return 0;
1508 }
1509
1510
1511 static int
1512 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1513                         struct qlcnic_npar_info *npar, int pci_func)
1514 {
1515         struct qlcnic_esw_func_cfg esw_cfg;
1516         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1517         esw_cfg.pci_func = pci_func;
1518         esw_cfg.vlan_id = npar->pvid;
1519         esw_cfg.mac_override = npar->mac_override;
1520         esw_cfg.discard_tagged = npar->discard_tagged;
1521         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1522         esw_cfg.offload_flags = npar->offload_flags;
1523         esw_cfg.promisc_mode = npar->promisc_mode;
1524         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1525                 return -EIO;
1526
1527         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1528         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1529                 return -EIO;
1530
1531         return 0;
1532 }
1533
1534 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1535 {
1536         int i, err;
1537         struct qlcnic_npar_info *npar;
1538         struct qlcnic_info nic_info;
1539         u8 pci_func;
1540
1541         if (qlcnic_82xx_check(adapter))
1542                 if (!adapter->need_fw_reset)
1543                         return 0;
1544
1545         /* Set the NPAR config data after FW reset */
1546         for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1547                 npar = &adapter->npars[i];
1548                 pci_func = npar->pci_func;
1549                 if (!adapter->npars[i].eswitch_status)
1550                         continue;
1551
1552                 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1553                 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1554                 if (err)
1555                         return err;
1556                 nic_info.min_tx_bw = npar->min_bw;
1557                 nic_info.max_tx_bw = npar->max_bw;
1558                 err = qlcnic_set_nic_info(adapter, &nic_info);
1559                 if (err)
1560                         return err;
1561
1562                 if (npar->enable_pm) {
1563                         err = qlcnic_config_port_mirroring(adapter,
1564                                                            npar->dest_npar, 1,
1565                                                            pci_func);
1566                         if (err)
1567                                 return err;
1568                 }
1569                 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1570                 if (err)
1571                         return err;
1572         }
1573         return 0;
1574 }
1575
1576 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1577 {
1578         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1579         u32 npar_state;
1580
1581         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1582                 return 0;
1583
1584         npar_state = QLC_SHARED_REG_RD32(adapter,
1585                                          QLCNIC_CRB_DEV_NPAR_STATE);
1586         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1587                 msleep(1000);
1588                 npar_state = QLC_SHARED_REG_RD32(adapter,
1589                                                  QLCNIC_CRB_DEV_NPAR_STATE);
1590         }
1591         if (!npar_opt_timeo) {
1592                 dev_err(&adapter->pdev->dev,
1593                         "Waiting for NPAR state to operational timeout\n");
1594                 return -EIO;
1595         }
1596         return 0;
1597 }
1598
1599 static int
1600 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1601 {
1602         int err;
1603
1604         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1605             adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1606                 return 0;
1607
1608         err = qlcnic_set_default_offload_settings(adapter);
1609         if (err)
1610                 return err;
1611
1612         err = qlcnic_reset_npar_config(adapter);
1613         if (err)
1614                 return err;
1615
1616         qlcnic_dev_set_npar_ready(adapter);
1617
1618         return err;
1619 }
1620
1621 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1622 {
1623         int err;
1624
1625         err = qlcnic_can_start_firmware(adapter);
1626         if (err < 0)
1627                 return err;
1628         else if (!err)
1629                 goto check_fw_status;
1630
1631         if (qlcnic_load_fw_file)
1632                 qlcnic_request_firmware(adapter);
1633         else {
1634                 err = qlcnic_check_flash_fw_ver(adapter);
1635                 if (err)
1636                         goto err_out;
1637
1638                 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1639         }
1640
1641         err = qlcnic_need_fw_reset(adapter);
1642         if (err == 0)
1643                 goto check_fw_status;
1644
1645         err = qlcnic_pinit_from_rom(adapter);
1646         if (err)
1647                 goto err_out;
1648
1649         err = qlcnic_load_firmware(adapter);
1650         if (err)
1651                 goto err_out;
1652
1653         qlcnic_release_firmware(adapter);
1654         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1655
1656 check_fw_status:
1657         err = qlcnic_check_fw_status(adapter);
1658         if (err)
1659                 goto err_out;
1660
1661         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1662         qlcnic_idc_debug_info(adapter, 1);
1663         err = qlcnic_check_eswitch_mode(adapter);
1664         if (err) {
1665                 dev_err(&adapter->pdev->dev,
1666                         "Memory allocation failed for eswitch\n");
1667                 goto err_out;
1668         }
1669         err = qlcnic_set_mgmt_operations(adapter);
1670         if (err)
1671                 goto err_out;
1672
1673         qlcnic_check_options(adapter);
1674         adapter->need_fw_reset = 0;
1675
1676         qlcnic_release_firmware(adapter);
1677         return 0;
1678
1679 err_out:
1680         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1681         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1682
1683         qlcnic_release_firmware(adapter);
1684         return err;
1685 }
1686
1687 static int
1688 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1689 {
1690         irq_handler_t handler;
1691         struct qlcnic_host_sds_ring *sds_ring;
1692         struct qlcnic_host_tx_ring *tx_ring;
1693         int err, ring, num_sds_rings;
1694
1695         unsigned long flags = 0;
1696         struct net_device *netdev = adapter->netdev;
1697         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1698
1699         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1700                 if (qlcnic_82xx_check(adapter))
1701                         handler = qlcnic_tmp_intr;
1702                 else
1703                         handler = qlcnic_83xx_tmp_intr;
1704                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1705                         flags |= IRQF_SHARED;
1706
1707         } else {
1708                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1709                         handler = qlcnic_msix_intr;
1710                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1711                         handler = qlcnic_msi_intr;
1712                 else {
1713                         flags |= IRQF_SHARED;
1714                         if (qlcnic_82xx_check(adapter))
1715                                 handler = qlcnic_intr;
1716                         else
1717                                 handler = qlcnic_83xx_intr;
1718                 }
1719         }
1720         adapter->irq = netdev->irq;
1721
1722         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1723                 if (qlcnic_82xx_check(adapter) ||
1724                     (qlcnic_83xx_check(adapter) &&
1725                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1726                         num_sds_rings = adapter->drv_sds_rings;
1727                         for (ring = 0; ring < num_sds_rings; ring++) {
1728                                 sds_ring = &recv_ctx->sds_rings[ring];
1729                                 if (qlcnic_82xx_check(adapter) &&
1730                                     !qlcnic_check_multi_tx(adapter) &&
1731                                     (ring == (num_sds_rings - 1))) {
1732                                         if (!(adapter->flags &
1733                                               QLCNIC_MSIX_ENABLED))
1734                                                 snprintf(sds_ring->name,
1735                                                          sizeof(sds_ring->name),
1736                                                          "qlcnic");
1737                                         else
1738                                                 snprintf(sds_ring->name,
1739                                                          sizeof(sds_ring->name),
1740                                                          "%s-tx-0-rx-%d",
1741                                                          netdev->name, ring);
1742                                 } else {
1743                                         snprintf(sds_ring->name,
1744                                                  sizeof(sds_ring->name),
1745                                                  "%s-rx-%d",
1746                                                  netdev->name, ring);
1747                                 }
1748                                 err = request_irq(sds_ring->irq, handler, flags,
1749                                                   sds_ring->name, sds_ring);
1750                                 if (err)
1751                                         return err;
1752                         }
1753                 }
1754                 if ((qlcnic_82xx_check(adapter) &&
1755                      qlcnic_check_multi_tx(adapter)) ||
1756                     (qlcnic_83xx_check(adapter) &&
1757                      (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1758                      !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
1759                         handler = qlcnic_msix_tx_intr;
1760                         for (ring = 0; ring < adapter->drv_tx_rings;
1761                              ring++) {
1762                                 tx_ring = &adapter->tx_ring[ring];
1763                                 snprintf(tx_ring->name, sizeof(tx_ring->name),
1764                                          "%s-tx-%d", netdev->name, ring);
1765                                 err = request_irq(tx_ring->irq, handler, flags,
1766                                                   tx_ring->name, tx_ring);
1767                                 if (err)
1768                                         return err;
1769                         }
1770                 }
1771         }
1772         return 0;
1773 }
1774
1775 static void
1776 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1777 {
1778         int ring;
1779         struct qlcnic_host_sds_ring *sds_ring;
1780         struct qlcnic_host_tx_ring *tx_ring;
1781
1782         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1783
1784         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1785                 if (qlcnic_82xx_check(adapter) ||
1786                     (qlcnic_83xx_check(adapter) &&
1787                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1788                         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1789                                 sds_ring = &recv_ctx->sds_rings[ring];
1790                                 free_irq(sds_ring->irq, sds_ring);
1791                         }
1792                 }
1793                 if ((qlcnic_83xx_check(adapter) &&
1794                      !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
1795                     (qlcnic_82xx_check(adapter) &&
1796                      qlcnic_check_multi_tx(adapter))) {
1797                         for (ring = 0; ring < adapter->drv_tx_rings;
1798                              ring++) {
1799                                 tx_ring = &adapter->tx_ring[ring];
1800                                 if (tx_ring->irq)
1801                                         free_irq(tx_ring->irq, tx_ring);
1802                         }
1803                 }
1804         }
1805 }
1806
1807 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1808 {
1809         u32 capab = 0;
1810
1811         if (qlcnic_82xx_check(adapter)) {
1812                 if (adapter->ahw->extra_capability[0] &
1813                     QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1814                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1815         } else {
1816                 capab = adapter->ahw->capabilities;
1817                 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1818                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1819         }
1820 }
1821
1822 static int qlcnic_config_def_intr_coalesce(struct qlcnic_adapter *adapter)
1823 {
1824         struct qlcnic_hardware_context *ahw = adapter->ahw;
1825         int err;
1826
1827         /* Initialize interrupt coalesce parameters */
1828         ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1829
1830         if (qlcnic_83xx_check(adapter)) {
1831                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
1832                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1833                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1834                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1835                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1836
1837                 err = qlcnic_83xx_set_rx_tx_intr_coal(adapter);
1838         } else {
1839                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1840                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1841                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1842
1843                 err = qlcnic_82xx_set_rx_coalesce(adapter);
1844         }
1845
1846         return err;
1847 }
1848
1849 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1850 {
1851         int ring;
1852         struct qlcnic_host_rds_ring *rds_ring;
1853
1854         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1855                 return -EIO;
1856
1857         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1858                 return 0;
1859
1860         if (qlcnic_set_eswitch_port_config(adapter))
1861                 return -EIO;
1862
1863         qlcnic_get_lro_mss_capability(adapter);
1864
1865         if (qlcnic_fw_create_ctx(adapter))
1866                 return -EIO;
1867
1868         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1869                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1870                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1871         }
1872
1873         qlcnic_set_multi(netdev);
1874         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1875
1876         adapter->ahw->linkup = 0;
1877
1878         if (adapter->drv_sds_rings > 1)
1879                 qlcnic_config_rss(adapter, 1);
1880
1881         qlcnic_config_def_intr_coalesce(adapter);
1882
1883         if (netdev->features & NETIF_F_LRO)
1884                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1885
1886         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1887         qlcnic_napi_enable(adapter);
1888
1889         qlcnic_linkevent_request(adapter, 1);
1890
1891         adapter->ahw->reset_context = 0;
1892         netif_tx_start_all_queues(netdev);
1893         return 0;
1894 }
1895
1896 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1897 {
1898         int err = 0;
1899
1900         rtnl_lock();
1901         if (netif_running(netdev))
1902                 err = __qlcnic_up(adapter, netdev);
1903         rtnl_unlock();
1904
1905         return err;
1906 }
1907
1908 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1909 {
1910         int ring;
1911
1912         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1913                 return;
1914
1915         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1916                 return;
1917
1918         if (qlcnic_sriov_vf_check(adapter))
1919                 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1920         smp_mb();
1921         netif_carrier_off(netdev);
1922         adapter->ahw->linkup = 0;
1923         netif_tx_disable(netdev);
1924
1925         qlcnic_free_mac_list(adapter);
1926
1927         if (adapter->fhash.fnum)
1928                 qlcnic_delete_lb_filters(adapter);
1929
1930         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1931
1932         qlcnic_napi_disable(adapter);
1933
1934         qlcnic_fw_destroy_ctx(adapter);
1935         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1936
1937         qlcnic_reset_rx_buffers_list(adapter);
1938
1939         for (ring = 0; ring < adapter->drv_tx_rings; ring++)
1940                 qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
1941 }
1942
1943 /* Usage: During suspend and firmware recovery module */
1944
1945 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1946 {
1947         rtnl_lock();
1948         if (netif_running(netdev))
1949                 __qlcnic_down(adapter, netdev);
1950         rtnl_unlock();
1951
1952 }
1953
1954 int
1955 qlcnic_attach(struct qlcnic_adapter *adapter)
1956 {
1957         struct net_device *netdev = adapter->netdev;
1958         struct pci_dev *pdev = adapter->pdev;
1959         int err;
1960
1961         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1962                 return 0;
1963
1964         err = qlcnic_napi_add(adapter, netdev);
1965         if (err)
1966                 return err;
1967
1968         err = qlcnic_alloc_sw_resources(adapter);
1969         if (err) {
1970                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1971                 goto err_out_napi_del;
1972         }
1973
1974         err = qlcnic_alloc_hw_resources(adapter);
1975         if (err) {
1976                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1977                 goto err_out_free_sw;
1978         }
1979
1980         err = qlcnic_request_irq(adapter);
1981         if (err) {
1982                 dev_err(&pdev->dev, "failed to setup interrupt\n");
1983                 goto err_out_free_hw;
1984         }
1985
1986         qlcnic_create_sysfs_entries(adapter);
1987
1988 #ifdef CONFIG_QLCNIC_VXLAN
1989         if (qlcnic_encap_rx_offload(adapter))
1990                 vxlan_get_rx_port(netdev);
1991 #endif
1992
1993         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1994         return 0;
1995
1996 err_out_free_hw:
1997         qlcnic_free_hw_resources(adapter);
1998 err_out_free_sw:
1999         qlcnic_free_sw_resources(adapter);
2000 err_out_napi_del:
2001         qlcnic_napi_del(adapter);
2002         return err;
2003 }
2004
2005 void qlcnic_detach(struct qlcnic_adapter *adapter)
2006 {
2007         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2008                 return;
2009
2010         qlcnic_remove_sysfs_entries(adapter);
2011
2012         qlcnic_free_hw_resources(adapter);
2013         qlcnic_release_rx_buffers(adapter);
2014         qlcnic_free_irq(adapter);
2015         qlcnic_napi_del(adapter);
2016         qlcnic_free_sw_resources(adapter);
2017
2018         adapter->is_up = 0;
2019 }
2020
2021 void qlcnic_diag_free_res(struct net_device *netdev, int drv_sds_rings)
2022 {
2023         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2024         struct qlcnic_host_sds_ring *sds_ring;
2025         int drv_tx_rings = adapter->drv_tx_rings;
2026         int ring;
2027
2028         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
2029         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2030                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2031                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
2032                         qlcnic_disable_sds_intr(adapter, sds_ring);
2033                 }
2034         }
2035
2036         qlcnic_fw_destroy_ctx(adapter);
2037
2038         qlcnic_detach(adapter);
2039
2040         adapter->ahw->diag_test = 0;
2041         adapter->drv_sds_rings = drv_sds_rings;
2042         adapter->drv_tx_rings = drv_tx_rings;
2043
2044         if (qlcnic_attach(adapter))
2045                 goto out;
2046
2047         if (netif_running(netdev))
2048                 __qlcnic_up(adapter, netdev);
2049 out:
2050         netif_device_attach(netdev);
2051 }
2052
2053 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
2054 {
2055         int err = 0;
2056
2057         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
2058                                 GFP_KERNEL);
2059         if (!adapter->recv_ctx) {
2060                 err = -ENOMEM;
2061                 goto err_out;
2062         }
2063
2064         /* clear stats */
2065         memset(&adapter->stats, 0, sizeof(adapter->stats));
2066 err_out:
2067         return err;
2068 }
2069
2070 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
2071 {
2072         kfree(adapter->recv_ctx);
2073         adapter->recv_ctx = NULL;
2074
2075         if (adapter->ahw->fw_dump.tmpl_hdr) {
2076                 vfree(adapter->ahw->fw_dump.tmpl_hdr);
2077                 adapter->ahw->fw_dump.tmpl_hdr = NULL;
2078         }
2079
2080         kfree(adapter->ahw->reset.buff);
2081         adapter->ahw->fw_dump.tmpl_hdr = NULL;
2082 }
2083
2084 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
2085 {
2086         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2087         struct qlcnic_host_sds_ring *sds_ring;
2088         struct qlcnic_host_rds_ring *rds_ring;
2089         int ring;
2090         int ret;
2091
2092         netif_device_detach(netdev);
2093
2094         if (netif_running(netdev))
2095                 __qlcnic_down(adapter, netdev);
2096
2097         qlcnic_detach(adapter);
2098
2099         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
2100         adapter->ahw->diag_test = test;
2101         adapter->ahw->linkup = 0;
2102
2103         ret = qlcnic_attach(adapter);
2104         if (ret) {
2105                 netif_device_attach(netdev);
2106                 return ret;
2107         }
2108
2109         ret = qlcnic_fw_create_ctx(adapter);
2110         if (ret) {
2111                 qlcnic_detach(adapter);
2112                 netif_device_attach(netdev);
2113                 return ret;
2114         }
2115
2116         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
2117                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
2118                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
2119         }
2120
2121         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2122                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2123                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
2124                         qlcnic_enable_sds_intr(adapter, sds_ring);
2125                 }
2126         }
2127
2128         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
2129                 adapter->ahw->loopback_state = 0;
2130                 qlcnic_linkevent_request(adapter, 1);
2131         }
2132
2133         set_bit(__QLCNIC_DEV_UP, &adapter->state);
2134
2135         return 0;
2136 }
2137
2138 /* Reset context in hardware only */
2139 static int
2140 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
2141 {
2142         struct net_device *netdev = adapter->netdev;
2143
2144         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2145                 return -EBUSY;
2146
2147         netif_device_detach(netdev);
2148
2149         qlcnic_down(adapter, netdev);
2150
2151         qlcnic_up(adapter, netdev);
2152
2153         netif_device_attach(netdev);
2154
2155         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2156         netdev_info(adapter->netdev, "%s: soft reset complete\n", __func__);
2157         return 0;
2158 }
2159
2160 int
2161 qlcnic_reset_context(struct qlcnic_adapter *adapter)
2162 {
2163         int err = 0;
2164         struct net_device *netdev = adapter->netdev;
2165
2166         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2167                 return -EBUSY;
2168
2169         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
2170
2171                 netif_device_detach(netdev);
2172
2173                 if (netif_running(netdev))
2174                         __qlcnic_down(adapter, netdev);
2175
2176                 qlcnic_detach(adapter);
2177
2178                 if (netif_running(netdev)) {
2179                         err = qlcnic_attach(adapter);
2180                         if (!err) {
2181                                 __qlcnic_up(adapter, netdev);
2182                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2183                         }
2184                 }
2185
2186                 netif_device_attach(netdev);
2187         }
2188
2189         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2190         return err;
2191 }
2192
2193 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
2194 {
2195         struct qlcnic_hardware_context *ahw = adapter->ahw;
2196         u16 act_pci_fn = ahw->total_nic_func;
2197         u16 count;
2198
2199         ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
2200         if (act_pci_fn <= 2)
2201                 count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
2202                          act_pci_fn;
2203         else
2204                 count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
2205                          act_pci_fn;
2206         ahw->max_uc_count = count;
2207 }
2208
2209 static int qlcnic_set_real_num_queues(struct qlcnic_adapter *adapter,
2210                                       u8 tx_queues, u8 rx_queues)
2211 {
2212         struct net_device *netdev = adapter->netdev;
2213         int err = 0;
2214
2215         if (tx_queues) {
2216                 err = netif_set_real_num_tx_queues(netdev, tx_queues);
2217                 if (err) {
2218                         netdev_err(netdev, "failed to set %d Tx queues\n",
2219                                    tx_queues);
2220                         return err;
2221                 }
2222         }
2223
2224         if (rx_queues) {
2225                 err = netif_set_real_num_rx_queues(netdev, rx_queues);
2226                 if (err)
2227                         netdev_err(netdev, "failed to set %d Rx queues\n",
2228                                    rx_queues);
2229         }
2230
2231         return err;
2232 }
2233
2234 int
2235 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
2236                     int pci_using_dac)
2237 {
2238         int err;
2239         struct pci_dev *pdev = adapter->pdev;
2240
2241         adapter->rx_csum = 1;
2242         adapter->ahw->mc_enabled = 0;
2243         qlcnic_set_mac_filter_count(adapter);
2244
2245         netdev->netdev_ops         = &qlcnic_netdev_ops;
2246         netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
2247
2248         qlcnic_change_mtu(netdev, netdev->mtu);
2249
2250         if (qlcnic_sriov_vf_check(adapter))
2251                 SET_ETHTOOL_OPS(netdev, &qlcnic_sriov_vf_ethtool_ops);
2252         else
2253                 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
2254
2255         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2256                              NETIF_F_IPV6_CSUM | NETIF_F_GRO |
2257                              NETIF_F_HW_VLAN_CTAG_RX);
2258         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
2259                                   NETIF_F_IPV6_CSUM);
2260
2261         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
2262                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
2263                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
2264         }
2265
2266         if (pci_using_dac) {
2267                 netdev->features |= NETIF_F_HIGHDMA;
2268                 netdev->vlan_features |= NETIF_F_HIGHDMA;
2269         }
2270
2271         if (qlcnic_vlan_tx_check(adapter))
2272                 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
2273
2274         if (qlcnic_sriov_vf_check(adapter))
2275                 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2276
2277         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
2278                 netdev->features |= NETIF_F_LRO;
2279
2280         if (qlcnic_encap_tx_offload(adapter)) {
2281                 netdev->features |= NETIF_F_GSO_UDP_TUNNEL;
2282
2283                 /* encapsulation Tx offload supported by Adapter */
2284                 netdev->hw_enc_features = NETIF_F_IP_CSUM        |
2285                                           NETIF_F_GSO_UDP_TUNNEL |
2286                                           NETIF_F_TSO            |
2287                                           NETIF_F_TSO6;
2288         }
2289
2290         if (qlcnic_encap_rx_offload(adapter))
2291                 netdev->hw_enc_features |= NETIF_F_RXCSUM;
2292
2293         netdev->hw_features = netdev->features;
2294         netdev->priv_flags |= IFF_UNICAST_FLT;
2295         netdev->irq = adapter->msix_entries[0].vector;
2296
2297         err = qlcnic_set_real_num_queues(adapter, adapter->drv_tx_rings,
2298                                          adapter->drv_sds_rings);
2299         if (err)
2300                 return err;
2301
2302         err = register_netdev(netdev);
2303         if (err) {
2304                 dev_err(&pdev->dev, "failed to register net device\n");
2305                 return err;
2306         }
2307
2308         qlcnic_dcb_init_dcbnl_ops(adapter->dcb);
2309
2310         return 0;
2311 }
2312
2313 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
2314 {
2315         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
2316                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
2317                 *pci_using_dac = 1;
2318         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
2319                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
2320                 *pci_using_dac = 0;
2321         else {
2322                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
2323                 return -EIO;
2324         }
2325
2326         return 0;
2327 }
2328
2329 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
2330 {
2331         int ring;
2332         struct qlcnic_host_tx_ring *tx_ring;
2333
2334         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2335                 tx_ring = &adapter->tx_ring[ring];
2336                 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
2337                         vfree(tx_ring->cmd_buf_arr);
2338                         tx_ring->cmd_buf_arr = NULL;
2339                 }
2340         }
2341         if (adapter->tx_ring != NULL)
2342                 kfree(adapter->tx_ring);
2343 }
2344
2345 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
2346                           struct net_device *netdev)
2347 {
2348         int ring, vector, index;
2349         struct qlcnic_host_tx_ring *tx_ring;
2350         struct qlcnic_cmd_buffer *cmd_buf_arr;
2351
2352         tx_ring = kcalloc(adapter->drv_tx_rings,
2353                           sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
2354         if (tx_ring == NULL)
2355                 return -ENOMEM;
2356
2357         adapter->tx_ring = tx_ring;
2358
2359         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2360                 tx_ring = &adapter->tx_ring[ring];
2361                 tx_ring->num_desc = adapter->num_txd;
2362                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
2363                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
2364                 if (cmd_buf_arr == NULL) {
2365                         qlcnic_free_tx_rings(adapter);
2366                         return -ENOMEM;
2367                 }
2368                 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
2369                 tx_ring->cmd_buf_arr = cmd_buf_arr;
2370                 spin_lock_init(&tx_ring->tx_clean_lock);
2371         }
2372
2373         if (qlcnic_83xx_check(adapter) ||
2374             (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
2375                 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2376                         tx_ring = &adapter->tx_ring[ring];
2377                         tx_ring->adapter = adapter;
2378                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
2379                                 index = adapter->drv_sds_rings + ring;
2380                                 vector = adapter->msix_entries[index].vector;
2381                                 tx_ring->irq = vector;
2382                         }
2383                 }
2384         }
2385
2386         return 0;
2387 }
2388
2389 void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
2390 {
2391         struct qlcnic_hardware_context *ahw = adapter->ahw;
2392         u32 fw_cmd = 0;
2393
2394         if (qlcnic_82xx_check(adapter))
2395                 fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
2396         else if (qlcnic_83xx_check(adapter))
2397                 fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
2398
2399         if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER)
2400                 qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
2401 }
2402
2403 /* Reset firmware API lock */
2404 static void qlcnic_reset_api_lock(struct qlcnic_adapter *adapter)
2405 {
2406         qlcnic_api_lock(adapter);
2407         qlcnic_api_unlock(adapter);
2408 }
2409
2410
2411 static int
2412 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2413 {
2414         struct net_device *netdev = NULL;
2415         struct qlcnic_adapter *adapter = NULL;
2416         struct qlcnic_hardware_context *ahw;
2417         int err, pci_using_dac = -1;
2418         char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
2419
2420         if (pdev->is_virtfn)
2421                 return -ENODEV;
2422
2423         err = pci_enable_device(pdev);
2424         if (err)
2425                 return err;
2426
2427         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2428                 err = -ENODEV;
2429                 goto err_out_disable_pdev;
2430         }
2431
2432         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
2433         if (err)
2434                 goto err_out_disable_pdev;
2435
2436         err = pci_request_regions(pdev, qlcnic_driver_name);
2437         if (err)
2438                 goto err_out_disable_pdev;
2439
2440         pci_set_master(pdev);
2441         pci_enable_pcie_error_reporting(pdev);
2442
2443         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2444         if (!ahw) {
2445                 err = -ENOMEM;
2446                 goto err_out_free_res;
2447         }
2448
2449         switch (ent->device) {
2450         case PCI_DEVICE_ID_QLOGIC_QLE824X:
2451                 ahw->hw_ops = &qlcnic_hw_ops;
2452                 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2453                 break;
2454         case PCI_DEVICE_ID_QLOGIC_QLE834X:
2455         case PCI_DEVICE_ID_QLOGIC_QLE844X:
2456                 qlcnic_83xx_register_map(ahw);
2457                 break;
2458         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2459         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2460                 qlcnic_sriov_vf_register_map(ahw);
2461                 break;
2462         default:
2463                 goto err_out_free_hw_res;
2464         }
2465
2466         err = qlcnic_setup_pci_map(pdev, ahw);
2467         if (err)
2468                 goto err_out_free_hw_res;
2469
2470         netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
2471                                    QLCNIC_MAX_TX_RINGS);
2472         if (!netdev) {
2473                 err = -ENOMEM;
2474                 goto err_out_iounmap;
2475         }
2476
2477         SET_NETDEV_DEV(netdev, &pdev->dev);
2478
2479         adapter = netdev_priv(netdev);
2480         adapter->netdev  = netdev;
2481         adapter->pdev    = pdev;
2482         adapter->ahw = ahw;
2483
2484         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2485         if (adapter->qlcnic_wq == NULL) {
2486                 err = -ENOMEM;
2487                 dev_err(&pdev->dev, "Failed to create workqueue\n");
2488                 goto err_out_free_netdev;
2489         }
2490
2491         err = qlcnic_alloc_adapter_resources(adapter);
2492         if (err)
2493                 goto err_out_free_wq;
2494
2495         adapter->dev_rst_time = jiffies;
2496         ahw->revision_id = pdev->revision;
2497         ahw->max_vnic_func = qlcnic_get_vnic_func_count(adapter);
2498         if (qlcnic_mac_learn == FDB_MAC_LEARN)
2499                 adapter->fdb_mac_learn = true;
2500         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2501                 adapter->drv_mac_learn = true;
2502
2503         rwlock_init(&adapter->ahw->crb_lock);
2504         mutex_init(&adapter->ahw->mem_lock);
2505
2506         INIT_LIST_HEAD(&adapter->mac_list);
2507
2508         qlcnic_register_dcb(adapter);
2509
2510         if (qlcnic_82xx_check(adapter)) {
2511                 qlcnic_check_vf(adapter, ent);
2512                 adapter->portnum = adapter->ahw->pci_func;
2513                 qlcnic_reset_api_lock(adapter);
2514                 err = qlcnic_start_firmware(adapter);
2515                 if (err) {
2516                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
2517                                 "\t\tIf reboot doesn't help, try flashing the card\n");
2518                         goto err_out_maintenance_mode;
2519                 }
2520
2521                 /* compute and set default and max tx/sds rings */
2522                 if (adapter->ahw->msix_supported) {
2523                         if (qlcnic_check_multi_tx_capability(adapter) == 1)
2524                                 qlcnic_set_tx_ring_count(adapter,
2525                                                          QLCNIC_SINGLE_RING);
2526                         else
2527                                 qlcnic_set_tx_ring_count(adapter,
2528                                                          QLCNIC_DEF_TX_RINGS);
2529                         qlcnic_set_sds_ring_count(adapter,
2530                                                   QLCNIC_DEF_SDS_RINGS);
2531                 } else {
2532                         qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
2533                         qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
2534                 }
2535
2536                 err = qlcnic_setup_idc_param(adapter);
2537                 if (err)
2538                         goto err_out_free_hw;
2539
2540                 adapter->flags |= QLCNIC_NEED_FLR;
2541
2542         } else if (qlcnic_83xx_check(adapter)) {
2543                 qlcnic_83xx_check_vf(adapter, ent);
2544                 adapter->portnum = adapter->ahw->pci_func;
2545                 err = qlcnic_83xx_init(adapter, pci_using_dac);
2546                 if (err) {
2547                         switch (err) {
2548                         case -ENOTRECOVERABLE:
2549                                 dev_err(&pdev->dev, "Adapter initialization failed due to a faulty hardware\n");
2550                                 dev_err(&pdev->dev, "Please replace the adapter with new one and return the faulty adapter for repair\n");
2551                                 goto err_out_free_hw;
2552                         case -ENOMEM:
2553                                 dev_err(&pdev->dev, "Adapter initialization failed. Please reboot\n");
2554                                 goto err_out_free_hw;
2555                         default:
2556                                 dev_err(&pdev->dev, "Adapter initialization failed. A reboot may be required to recover from this failure\n");
2557                                 dev_err(&pdev->dev, "If reboot does not help to recover from this failure, try a flash update of the adapter\n");
2558                                 goto err_out_maintenance_mode;
2559                         }
2560                 }
2561
2562                 if (qlcnic_sriov_vf_check(adapter))
2563                         return 0;
2564         } else {
2565                 dev_err(&pdev->dev,
2566                         "%s: failed. Please Reboot\n", __func__);
2567                 goto err_out_free_hw;
2568         }
2569
2570         if (qlcnic_read_mac_addr(adapter))
2571                 dev_warn(&pdev->dev, "failed to read mac addr\n");
2572
2573         qlcnic_read_phys_port_id(adapter);
2574
2575         if (adapter->portnum == 0) {
2576                 qlcnic_get_board_name(adapter, board_name);
2577
2578                 pr_info("%s: %s Board Chip rev 0x%x\n",
2579                         module_name(THIS_MODULE),
2580                         board_name, adapter->ahw->revision_id);
2581         }
2582
2583         if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2584             !!qlcnic_use_msi)
2585                 dev_warn(&pdev->dev,
2586                          "Device does not support MSI interrupts\n");
2587
2588         if (qlcnic_82xx_check(adapter)) {
2589                 qlcnic_dcb_enable(adapter->dcb);
2590                 qlcnic_dcb_get_info(adapter->dcb);
2591                 err = qlcnic_setup_intr(adapter);
2592
2593                 if (err) {
2594                         dev_err(&pdev->dev, "Failed to setup interrupt\n");
2595                         goto err_out_disable_msi;
2596                 }
2597         }
2598
2599         err = qlcnic_get_act_pci_func(adapter);
2600         if (err)
2601                 goto err_out_disable_mbx_intr;
2602
2603         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2604         if (err)
2605                 goto err_out_disable_mbx_intr;
2606
2607         if (adapter->portnum == 0)
2608                 qlcnic_set_drv_version(adapter);
2609
2610         pci_set_drvdata(pdev, adapter);
2611
2612         if (qlcnic_82xx_check(adapter))
2613                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2614                                      FW_POLL_DELAY);
2615
2616         switch (adapter->ahw->port_type) {
2617         case QLCNIC_GBE:
2618                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2619                                 adapter->netdev->name);
2620                 break;
2621         case QLCNIC_XGBE:
2622                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2623                                 adapter->netdev->name);
2624                 break;
2625         }
2626
2627         if (adapter->drv_mac_learn)
2628                 qlcnic_alloc_lb_filters_mem(adapter);
2629
2630         qlcnic_add_sysfs(adapter);
2631
2632         return 0;
2633
2634 err_out_disable_mbx_intr:
2635         if (qlcnic_83xx_check(adapter))
2636                 qlcnic_83xx_free_mbx_intr(adapter);
2637
2638 err_out_disable_msi:
2639         qlcnic_teardown_intr(adapter);
2640         qlcnic_cancel_idc_work(adapter);
2641         qlcnic_clr_all_drv_state(adapter, 0);
2642
2643 err_out_free_hw:
2644         qlcnic_free_adapter_resources(adapter);
2645
2646 err_out_free_wq:
2647         destroy_workqueue(adapter->qlcnic_wq);
2648
2649 err_out_free_netdev:
2650         free_netdev(netdev);
2651
2652 err_out_iounmap:
2653         qlcnic_cleanup_pci_map(ahw);
2654
2655 err_out_free_hw_res:
2656         kfree(ahw);
2657
2658 err_out_free_res:
2659         pci_release_regions(pdev);
2660
2661 err_out_disable_pdev:
2662         pci_disable_device(pdev);
2663         return err;
2664
2665 err_out_maintenance_mode:
2666         set_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state);
2667         netdev->netdev_ops = &qlcnic_netdev_failed_ops;
2668         SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_failed_ops);
2669         ahw->port_type = QLCNIC_XGBE;
2670
2671         if (qlcnic_83xx_check(adapter))
2672                 adapter->tgt_status_reg = NULL;
2673         else
2674                 ahw->board_type = QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS;
2675
2676         err = register_netdev(netdev);
2677
2678         if (err) {
2679                 dev_err(&pdev->dev, "Failed to register net device\n");
2680                 qlcnic_clr_all_drv_state(adapter, 0);
2681                 goto err_out_free_hw;
2682         }
2683
2684         pci_set_drvdata(pdev, adapter);
2685         qlcnic_add_sysfs(adapter);
2686
2687         return 0;
2688 }
2689
2690 static void qlcnic_remove(struct pci_dev *pdev)
2691 {
2692         struct qlcnic_adapter *adapter;
2693         struct net_device *netdev;
2694         struct qlcnic_hardware_context *ahw;
2695
2696         adapter = pci_get_drvdata(pdev);
2697         if (adapter == NULL)
2698                 return;
2699
2700         netdev = adapter->netdev;
2701         qlcnic_sriov_pf_disable(adapter);
2702
2703         qlcnic_cancel_idc_work(adapter);
2704         ahw = adapter->ahw;
2705
2706         unregister_netdev(netdev);
2707         qlcnic_sriov_cleanup(adapter);
2708
2709         if (qlcnic_83xx_check(adapter)) {
2710                 qlcnic_83xx_initialize_nic(adapter, 0);
2711                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2712                 qlcnic_83xx_free_mbx_intr(adapter);
2713                 qlcnic_83xx_detach_mailbox_work(adapter);
2714                 qlcnic_83xx_free_mailbox(ahw->mailbox);
2715                 kfree(ahw->fw_info);
2716         }
2717
2718         qlcnic_dcb_free(adapter->dcb);
2719
2720         qlcnic_detach(adapter);
2721
2722         if (adapter->npars != NULL)
2723                 kfree(adapter->npars);
2724         if (adapter->eswitch != NULL)
2725                 kfree(adapter->eswitch);
2726
2727         if (qlcnic_82xx_check(adapter))
2728                 qlcnic_clr_all_drv_state(adapter, 0);
2729
2730         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2731
2732         qlcnic_free_lb_filters_mem(adapter);
2733
2734         qlcnic_teardown_intr(adapter);
2735
2736         qlcnic_remove_sysfs(adapter);
2737
2738         qlcnic_cleanup_pci_map(adapter->ahw);
2739
2740         qlcnic_release_firmware(adapter);
2741
2742         pci_disable_pcie_error_reporting(pdev);
2743         pci_release_regions(pdev);
2744         pci_disable_device(pdev);
2745
2746         if (adapter->qlcnic_wq) {
2747                 destroy_workqueue(adapter->qlcnic_wq);
2748                 adapter->qlcnic_wq = NULL;
2749         }
2750
2751         qlcnic_free_adapter_resources(adapter);
2752         kfree(ahw);
2753         free_netdev(netdev);
2754 }
2755
2756 static void qlcnic_shutdown(struct pci_dev *pdev)
2757 {
2758         if (__qlcnic_shutdown(pdev))
2759                 return;
2760
2761         pci_disable_device(pdev);
2762 }
2763
2764 #ifdef CONFIG_PM
2765 static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2766 {
2767         int retval;
2768
2769         retval = __qlcnic_shutdown(pdev);
2770         if (retval)
2771                 return retval;
2772
2773         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2774         return 0;
2775 }
2776
2777 static int qlcnic_resume(struct pci_dev *pdev)
2778 {
2779         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2780         int err;
2781
2782         err = pci_enable_device(pdev);
2783         if (err)
2784                 return err;
2785
2786         pci_set_power_state(pdev, PCI_D0);
2787         pci_set_master(pdev);
2788         pci_restore_state(pdev);
2789
2790         return  __qlcnic_resume(adapter);
2791 }
2792 #endif
2793
2794 static int qlcnic_open(struct net_device *netdev)
2795 {
2796         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2797         int err;
2798
2799         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
2800                 netdev_err(netdev, "%s: Device is in non-operational state\n",
2801                            __func__);
2802
2803                 return -EIO;
2804         }
2805
2806         netif_carrier_off(netdev);
2807
2808         err = qlcnic_attach(adapter);
2809         if (err)
2810                 return err;
2811
2812         err = __qlcnic_up(adapter, netdev);
2813         if (err)
2814                 qlcnic_detach(adapter);
2815
2816         return err;
2817 }
2818
2819 /*
2820  * qlcnic_close - Disables a network interface entry point
2821  */
2822 static int qlcnic_close(struct net_device *netdev)
2823 {
2824         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2825
2826         __qlcnic_down(adapter, netdev);
2827
2828         return 0;
2829 }
2830
2831 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2832 {
2833         void *head;
2834         int i;
2835         struct net_device *netdev = adapter->netdev;
2836         u32 filter_size = 0;
2837         u16 act_pci_func = 0;
2838
2839         if (adapter->fhash.fmax && adapter->fhash.fhead)
2840                 return;
2841
2842         act_pci_func = adapter->ahw->total_nic_func;
2843         spin_lock_init(&adapter->mac_learn_lock);
2844         spin_lock_init(&adapter->rx_mac_learn_lock);
2845
2846         if (qlcnic_82xx_check(adapter)) {
2847                 filter_size = QLCNIC_LB_MAX_FILTERS;
2848                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2849         } else {
2850                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2851                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2852         }
2853
2854         head = kcalloc(adapter->fhash.fbucket_size,
2855                        sizeof(struct hlist_head), GFP_ATOMIC);
2856
2857         if (!head)
2858                 return;
2859
2860         adapter->fhash.fmax = (filter_size / act_pci_func);
2861         adapter->fhash.fhead = head;
2862
2863         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2864                     act_pci_func, adapter->fhash.fmax);
2865
2866         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2867                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2868
2869         adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2870
2871         head = kcalloc(adapter->rx_fhash.fbucket_size,
2872                        sizeof(struct hlist_head), GFP_ATOMIC);
2873
2874         if (!head)
2875                 return;
2876
2877         adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2878         adapter->rx_fhash.fhead = head;
2879
2880         for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2881                 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2882 }
2883
2884 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2885 {
2886         if (adapter->fhash.fmax && adapter->fhash.fhead)
2887                 kfree(adapter->fhash.fhead);
2888
2889         adapter->fhash.fhead = NULL;
2890         adapter->fhash.fmax = 0;
2891
2892         if (adapter->rx_fhash.fmax && adapter->rx_fhash.fhead)
2893                 kfree(adapter->rx_fhash.fhead);
2894
2895         adapter->rx_fhash.fmax = 0;
2896         adapter->rx_fhash.fhead = NULL;
2897 }
2898
2899 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2900 {
2901         struct net_device *netdev = adapter->netdev;
2902         u32 temp_state, temp_val, temp = 0;
2903         int rv = 0;
2904
2905         if (qlcnic_83xx_check(adapter))
2906                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2907
2908         if (qlcnic_82xx_check(adapter))
2909                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2910
2911         temp_state = qlcnic_get_temp_state(temp);
2912         temp_val = qlcnic_get_temp_val(temp);
2913
2914         if (temp_state == QLCNIC_TEMP_PANIC) {
2915                 dev_err(&netdev->dev,
2916                        "Device temperature %d degrees C exceeds"
2917                        " maximum allowed. Hardware has been shut down.\n",
2918                        temp_val);
2919                 rv = 1;
2920         } else if (temp_state == QLCNIC_TEMP_WARN) {
2921                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2922                         dev_err(&netdev->dev,
2923                                "Device temperature %d degrees C "
2924                                "exceeds operating range."
2925                                " Immediate action needed.\n",
2926                                temp_val);
2927                 }
2928         } else {
2929                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2930                         dev_info(&netdev->dev,
2931                                "Device temperature is now %d degrees C"
2932                                " in normal range.\n", temp_val);
2933                 }
2934         }
2935         adapter->ahw->temp = temp_state;
2936         return rv;
2937 }
2938
2939 static inline void dump_tx_ring_desc(struct qlcnic_host_tx_ring *tx_ring)
2940 {
2941         int i;
2942         struct cmd_desc_type0 *tx_desc_info;
2943
2944         for (i = 0; i < tx_ring->num_desc; i++) {
2945                 tx_desc_info = &tx_ring->desc_head[i];
2946                 pr_info("TX Desc: %d\n", i);
2947                 print_hex_dump(KERN_INFO, "TX: ", DUMP_PREFIX_OFFSET, 16, 1,
2948                                &tx_ring->desc_head[i],
2949                                sizeof(struct cmd_desc_type0), true);
2950         }
2951 }
2952
2953 static void qlcnic_dump_tx_rings(struct qlcnic_adapter *adapter)
2954 {
2955         struct net_device *netdev = adapter->netdev;
2956         struct qlcnic_host_tx_ring *tx_ring;
2957         int ring;
2958
2959         if (!netdev || !netif_running(netdev))
2960                 return;
2961
2962         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2963                 tx_ring = &adapter->tx_ring[ring];
2964                 netdev_info(netdev, "Tx ring=%d Context Id=0x%x\n",
2965                             ring, tx_ring->ctx_id);
2966                 netdev_info(netdev,
2967                             "xmit_finished=%llu, xmit_called=%llu, xmit_on=%llu, xmit_off=%llu\n",
2968                             tx_ring->tx_stats.xmit_finished,
2969                             tx_ring->tx_stats.xmit_called,
2970                             tx_ring->tx_stats.xmit_on,
2971                             tx_ring->tx_stats.xmit_off);
2972
2973                 if (tx_ring->crb_intr_mask)
2974                         netdev_info(netdev, "crb_intr_mask=%d\n",
2975                                     readl(tx_ring->crb_intr_mask));
2976
2977                 netdev_info(netdev,
2978                             "hw_producer=%d, sw_producer=%d sw_consumer=%d, hw_consumer=%d\n",
2979                             readl(tx_ring->crb_cmd_producer),
2980                             tx_ring->producer, tx_ring->sw_consumer,
2981                             le32_to_cpu(*(tx_ring->hw_consumer)));
2982
2983                 netdev_info(netdev, "Total desc=%d, Available desc=%d\n",
2984                             tx_ring->num_desc, qlcnic_tx_avail(tx_ring));
2985
2986                 if (netif_msg_tx_done(adapter->ahw))
2987                         dump_tx_ring_desc(tx_ring);
2988         }
2989 }
2990
2991 static void qlcnic_tx_timeout(struct net_device *netdev)
2992 {
2993         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2994
2995         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2996                 return;
2997
2998         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS) {
2999                 netdev_info(netdev, "Tx timeout, reset the adapter.\n");
3000                 if (qlcnic_82xx_check(adapter))
3001                         adapter->need_fw_reset = 1;
3002                 else if (qlcnic_83xx_check(adapter))
3003                         qlcnic_83xx_idc_request_reset(adapter,
3004                                                       QLCNIC_FORCE_FW_DUMP_KEY);
3005         } else {
3006                 netdev_info(netdev, "Tx timeout, reset adapter context.\n");
3007                 qlcnic_dump_tx_rings(adapter);
3008                 adapter->ahw->reset_context = 1;
3009         }
3010 }
3011
3012 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
3013 {
3014         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3015         struct net_device_stats *stats = &netdev->stats;
3016
3017         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
3018                 qlcnic_update_stats(adapter);
3019
3020         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
3021         stats->tx_packets = adapter->stats.xmitfinished;
3022         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
3023         stats->tx_bytes = adapter->stats.txbytes;
3024         stats->rx_dropped = adapter->stats.rxdropped;
3025         stats->tx_dropped = adapter->stats.txdropped;
3026
3027         return stats;
3028 }
3029
3030 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
3031 {
3032         u32 status;
3033
3034         status = readl(adapter->isr_int_vec);
3035
3036         if (!(status & adapter->ahw->int_vec_bit))
3037                 return IRQ_NONE;
3038
3039         /* check interrupt state machine, to be sure */
3040         status = readl(adapter->crb_int_state_reg);
3041         if (!ISR_LEGACY_INT_TRIGGERED(status))
3042                 return IRQ_NONE;
3043
3044         writel(0xffffffff, adapter->tgt_status_reg);
3045         /* read twice to ensure write is flushed */
3046         readl(adapter->isr_int_vec);
3047         readl(adapter->isr_int_vec);
3048
3049         return IRQ_HANDLED;
3050 }
3051
3052 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
3053 {
3054         struct qlcnic_host_sds_ring *sds_ring = data;
3055         struct qlcnic_adapter *adapter = sds_ring->adapter;
3056
3057         if (adapter->flags & QLCNIC_MSIX_ENABLED)
3058                 goto done;
3059         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
3060                 writel(0xffffffff, adapter->tgt_status_reg);
3061                 goto done;
3062         }
3063
3064         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3065                 return IRQ_NONE;
3066
3067 done:
3068         adapter->ahw->diag_cnt++;
3069         qlcnic_enable_sds_intr(adapter, sds_ring);
3070         return IRQ_HANDLED;
3071 }
3072
3073 static irqreturn_t qlcnic_intr(int irq, void *data)
3074 {
3075         struct qlcnic_host_sds_ring *sds_ring = data;
3076         struct qlcnic_adapter *adapter = sds_ring->adapter;
3077
3078         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3079                 return IRQ_NONE;
3080
3081         napi_schedule(&sds_ring->napi);
3082
3083         return IRQ_HANDLED;
3084 }
3085
3086 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
3087 {
3088         struct qlcnic_host_sds_ring *sds_ring = data;
3089         struct qlcnic_adapter *adapter = sds_ring->adapter;
3090
3091         /* clear interrupt */
3092         writel(0xffffffff, adapter->tgt_status_reg);
3093
3094         napi_schedule(&sds_ring->napi);
3095         return IRQ_HANDLED;
3096 }
3097
3098 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
3099 {
3100         struct qlcnic_host_sds_ring *sds_ring = data;
3101
3102         napi_schedule(&sds_ring->napi);
3103         return IRQ_HANDLED;
3104 }
3105
3106 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
3107 {
3108         struct qlcnic_host_tx_ring *tx_ring = data;
3109
3110         napi_schedule(&tx_ring->napi);
3111         return IRQ_HANDLED;
3112 }
3113
3114 #ifdef CONFIG_NET_POLL_CONTROLLER
3115 static void qlcnic_poll_controller(struct net_device *netdev)
3116 {
3117         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3118         struct qlcnic_host_sds_ring *sds_ring;
3119         struct qlcnic_recv_context *recv_ctx;
3120         struct qlcnic_host_tx_ring *tx_ring;
3121         int ring;
3122
3123         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3124                 return;
3125
3126         recv_ctx = adapter->recv_ctx;
3127
3128         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3129                 sds_ring = &recv_ctx->sds_rings[ring];
3130                 qlcnic_disable_sds_intr(adapter, sds_ring);
3131                 napi_schedule(&sds_ring->napi);
3132         }
3133
3134         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
3135                 /* Only Multi-Tx queue capable devices need to
3136                  * schedule NAPI for TX rings
3137                  */
3138                 if ((qlcnic_83xx_check(adapter) &&
3139                      (adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
3140                     (qlcnic_82xx_check(adapter) &&
3141                      !qlcnic_check_multi_tx(adapter)))
3142                         return;
3143
3144                 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3145                         tx_ring = &adapter->tx_ring[ring];
3146                         qlcnic_disable_tx_intr(adapter, tx_ring);
3147                         napi_schedule(&tx_ring->napi);
3148                 }
3149         }
3150 }
3151 #endif
3152
3153 static void
3154 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
3155 {
3156         u32 val;
3157
3158         val = adapter->portnum & 0xf;
3159         val |= encoding << 7;
3160         val |= (jiffies - adapter->dev_rst_time) << 8;
3161
3162         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
3163         adapter->dev_rst_time = jiffies;
3164 }
3165
3166 static int
3167 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
3168 {
3169         u32  val;
3170
3171         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
3172                         state != QLCNIC_DEV_NEED_QUISCENT);
3173
3174         if (qlcnic_api_lock(adapter))
3175                 return -EIO;
3176
3177         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3178
3179         if (state == QLCNIC_DEV_NEED_RESET)
3180                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3181         else if (state == QLCNIC_DEV_NEED_QUISCENT)
3182                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
3183
3184         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3185
3186         qlcnic_api_unlock(adapter);
3187
3188         return 0;
3189 }
3190
3191 static int
3192 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
3193 {
3194         u32  val;
3195
3196         if (qlcnic_api_lock(adapter))
3197                 return -EBUSY;
3198
3199         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3200         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3201         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3202
3203         qlcnic_api_unlock(adapter);
3204
3205         return 0;
3206 }
3207
3208 void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
3209 {
3210         u32  val;
3211
3212         if (qlcnic_api_lock(adapter))
3213                 goto err;
3214
3215         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3216         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
3217         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3218
3219         if (failed) {
3220                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3221                                     QLCNIC_DEV_FAILED);
3222                 dev_info(&adapter->pdev->dev,
3223                                 "Device state set to Failed. Please Reboot\n");
3224         } else if (!(val & 0x11111111))
3225                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3226                                     QLCNIC_DEV_COLD);
3227
3228         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3229         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3230         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3231
3232         qlcnic_api_unlock(adapter);
3233 err:
3234         adapter->fw_fail_cnt = 0;
3235         adapter->flags &= ~QLCNIC_FW_HANG;
3236         clear_bit(__QLCNIC_START_FW, &adapter->state);
3237         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3238 }
3239
3240 /* Grab api lock, before checking state */
3241 static int
3242 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
3243 {
3244         int act, state, active_mask;
3245         struct qlcnic_hardware_context *ahw = adapter->ahw;
3246
3247         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3248         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3249
3250         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
3251                 active_mask = (~(1 << (ahw->pci_func * 4)));
3252                 act = act & active_mask;
3253         }
3254
3255         if (((state & 0x11111111) == (act & 0x11111111)) ||
3256                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
3257                 return 0;
3258         else
3259                 return 1;
3260 }
3261
3262 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
3263 {
3264         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
3265
3266         if (val != QLCNIC_DRV_IDC_VER) {
3267                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
3268                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
3269         }
3270
3271         return 0;
3272 }
3273
3274 static int
3275 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
3276 {
3277         u32 val, prev_state;
3278         u8 dev_init_timeo = adapter->dev_init_timeo;
3279         u8 portnum = adapter->portnum;
3280         u8 ret;
3281
3282         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
3283                 return 1;
3284
3285         if (qlcnic_api_lock(adapter))
3286                 return -1;
3287
3288         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3289         if (!(val & (1 << (portnum * 4)))) {
3290                 QLC_DEV_SET_REF_CNT(val, portnum);
3291                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3292         }
3293
3294         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3295         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
3296
3297         switch (prev_state) {
3298         case QLCNIC_DEV_COLD:
3299                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3300                                     QLCNIC_DEV_INITIALIZING);
3301                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
3302                                     QLCNIC_DRV_IDC_VER);
3303                 qlcnic_idc_debug_info(adapter, 0);
3304                 qlcnic_api_unlock(adapter);
3305                 return 1;
3306
3307         case QLCNIC_DEV_READY:
3308                 ret = qlcnic_check_idc_ver(adapter);
3309                 qlcnic_api_unlock(adapter);
3310                 return ret;
3311
3312         case QLCNIC_DEV_NEED_RESET:
3313                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3314                 QLC_DEV_SET_RST_RDY(val, portnum);
3315                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3316                 break;
3317
3318         case QLCNIC_DEV_NEED_QUISCENT:
3319                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3320                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
3321                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3322                 break;
3323
3324         case QLCNIC_DEV_FAILED:
3325                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
3326                 qlcnic_api_unlock(adapter);
3327                 return -1;
3328
3329         case QLCNIC_DEV_INITIALIZING:
3330         case QLCNIC_DEV_QUISCENT:
3331                 break;
3332         }
3333
3334         qlcnic_api_unlock(adapter);
3335
3336         do {
3337                 msleep(1000);
3338                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3339
3340                 if (prev_state == QLCNIC_DEV_QUISCENT)
3341                         continue;
3342         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
3343
3344         if (!dev_init_timeo) {
3345                 dev_err(&adapter->pdev->dev,
3346                         "Waiting for device to initialize timeout\n");
3347                 return -1;
3348         }
3349
3350         if (qlcnic_api_lock(adapter))
3351                 return -1;
3352
3353         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3354         QLC_DEV_CLR_RST_QSCNT(val, portnum);
3355         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3356
3357         ret = qlcnic_check_idc_ver(adapter);
3358         qlcnic_api_unlock(adapter);
3359
3360         return ret;
3361 }
3362
3363 static void
3364 qlcnic_fwinit_work(struct work_struct *work)
3365 {
3366         struct qlcnic_adapter *adapter = container_of(work,
3367                         struct qlcnic_adapter, fw_work.work);
3368         u32 dev_state = 0xf;
3369         u32 val;
3370
3371         if (qlcnic_api_lock(adapter))
3372                 goto err_ret;
3373
3374         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3375         if (dev_state == QLCNIC_DEV_QUISCENT ||
3376             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3377                 qlcnic_api_unlock(adapter);
3378                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
3379                                                 FW_POLL_DELAY * 2);
3380                 return;
3381         }
3382
3383         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
3384                 qlcnic_api_unlock(adapter);
3385                 goto wait_npar;
3386         }
3387
3388         if (dev_state == QLCNIC_DEV_INITIALIZING ||
3389             dev_state == QLCNIC_DEV_READY) {
3390                 dev_info(&adapter->pdev->dev, "Detected state change from "
3391                                 "DEV_NEED_RESET, skipping ack check\n");
3392                 goto skip_ack_check;
3393         }
3394
3395         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
3396                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
3397                                         adapter->reset_ack_timeo);
3398                 goto skip_ack_check;
3399         }
3400
3401         if (!qlcnic_check_drv_state(adapter)) {
3402 skip_ack_check:
3403                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3404
3405                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
3406                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3407                                             QLCNIC_DEV_INITIALIZING);
3408                         set_bit(__QLCNIC_START_FW, &adapter->state);
3409                         QLCDB(adapter, DRV, "Restarting fw\n");
3410                         qlcnic_idc_debug_info(adapter, 0);
3411                         val = QLC_SHARED_REG_RD32(adapter,
3412                                                   QLCNIC_CRB_DRV_STATE);
3413                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3414                         QLC_SHARED_REG_WR32(adapter,
3415                                             QLCNIC_CRB_DRV_STATE, val);
3416                 }
3417
3418                 qlcnic_api_unlock(adapter);
3419
3420                 rtnl_lock();
3421                 if (qlcnic_check_fw_dump_state(adapter) &&
3422                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3423                         QLCDB(adapter, DRV, "Take FW dump\n");
3424                         qlcnic_dump_fw(adapter);
3425                         adapter->flags |= QLCNIC_FW_HANG;
3426                 }
3427                 rtnl_unlock();
3428
3429                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
3430                 if (!adapter->nic_ops->start_firmware(adapter)) {
3431                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3432                         adapter->fw_wait_cnt = 0;
3433                         return;
3434                 }
3435                 goto err_ret;
3436         }
3437
3438         qlcnic_api_unlock(adapter);
3439
3440 wait_npar:
3441         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3442         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
3443
3444         switch (dev_state) {
3445         case QLCNIC_DEV_READY:
3446                 if (!qlcnic_start_firmware(adapter)) {
3447                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3448                         adapter->fw_wait_cnt = 0;
3449                         return;
3450                 }
3451         case QLCNIC_DEV_FAILED:
3452                 break;
3453         default:
3454                 qlcnic_schedule_work(adapter,
3455                         qlcnic_fwinit_work, FW_POLL_DELAY);
3456                 return;
3457         }
3458
3459 err_ret:
3460         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
3461                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
3462         netif_device_attach(adapter->netdev);
3463         qlcnic_clr_all_drv_state(adapter, 0);
3464 }
3465
3466 static void
3467 qlcnic_detach_work(struct work_struct *work)
3468 {
3469         struct qlcnic_adapter *adapter = container_of(work,
3470                         struct qlcnic_adapter, fw_work.work);
3471         struct net_device *netdev = adapter->netdev;
3472         u32 status;
3473
3474         netif_device_detach(netdev);
3475
3476         /* Dont grab rtnl lock during Quiscent mode */
3477         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3478                 if (netif_running(netdev))
3479                         __qlcnic_down(adapter, netdev);
3480         } else
3481                 qlcnic_down(adapter, netdev);
3482
3483         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3484
3485         if (status & QLCNIC_RCODE_FATAL_ERROR) {
3486                 dev_err(&adapter->pdev->dev,
3487                         "Detaching the device: peg halt status1=0x%x\n",
3488                                         status);
3489
3490                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
3491                         dev_err(&adapter->pdev->dev,
3492                         "On board active cooling fan failed. "
3493                                 "Device has been halted.\n");
3494                         dev_err(&adapter->pdev->dev,
3495                                 "Replace the adapter.\n");
3496                 }
3497
3498                 goto err_ret;
3499         }
3500
3501         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
3502                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
3503                         adapter->ahw->temp);
3504                 goto err_ret;
3505         }
3506
3507         /* Dont ack if this instance is the reset owner */
3508         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3509                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
3510                         dev_err(&adapter->pdev->dev,
3511                                 "Failed to set driver state,"
3512                                         "detaching the device.\n");
3513                         goto err_ret;
3514                 }
3515         }
3516
3517         adapter->fw_wait_cnt = 0;
3518
3519         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3520
3521         return;
3522
3523 err_ret:
3524         netif_device_attach(netdev);
3525         qlcnic_clr_all_drv_state(adapter, 1);
3526 }
3527
3528 /*Transit NPAR state to NON Operational */
3529 static void
3530 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3531 {
3532         u32 state;
3533
3534         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3535         if (state == QLCNIC_DEV_NPAR_NON_OPER)
3536                 return;
3537
3538         if (qlcnic_api_lock(adapter))
3539                 return;
3540         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3541                             QLCNIC_DEV_NPAR_NON_OPER);
3542         qlcnic_api_unlock(adapter);
3543 }
3544
3545 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter,
3546                                           u32 key)
3547 {
3548         u32 state, xg_val = 0, gb_val = 0;
3549
3550         qlcnic_xg_set_xg0_mask(xg_val);
3551         qlcnic_xg_set_xg1_mask(xg_val);
3552         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3553         qlcnic_gb_set_gb0_mask(gb_val);
3554         qlcnic_gb_set_gb1_mask(gb_val);
3555         qlcnic_gb_set_gb2_mask(gb_val);
3556         qlcnic_gb_set_gb3_mask(gb_val);
3557         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3558         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3559                                 " on all ports\n");
3560         adapter->need_fw_reset = 1;
3561
3562         if (qlcnic_api_lock(adapter))
3563                 return;
3564
3565         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3566
3567         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
3568                 netdev_err(adapter->netdev, "%s: Device is in non-operational state\n",
3569                            __func__);
3570                 qlcnic_api_unlock(adapter);
3571
3572                 return;
3573         }
3574
3575         if (state == QLCNIC_DEV_READY) {
3576                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3577                                     QLCNIC_DEV_NEED_RESET);
3578                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3579                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3580                 qlcnic_idc_debug_info(adapter, 0);
3581         }
3582
3583         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3584                             QLCNIC_DEV_NPAR_NON_OPER);
3585         qlcnic_api_unlock(adapter);
3586 }
3587
3588 /* Transit to NPAR READY state from NPAR NOT READY state */
3589 static void
3590 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3591 {
3592         if (qlcnic_api_lock(adapter))
3593                 return;
3594
3595         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3596                             QLCNIC_DEV_NPAR_OPER);
3597         QLCDB(adapter, DRV, "NPAR operational state set\n");
3598
3599         qlcnic_api_unlock(adapter);
3600 }
3601
3602 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3603                           work_func_t func, int delay)
3604 {
3605         if (test_bit(__QLCNIC_AER, &adapter->state))
3606                 return;
3607
3608         INIT_DELAYED_WORK(&adapter->fw_work, func);
3609         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3610                            round_jiffies_relative(delay));
3611 }
3612
3613 static void
3614 qlcnic_attach_work(struct work_struct *work)
3615 {
3616         struct qlcnic_adapter *adapter = container_of(work,
3617                                 struct qlcnic_adapter, fw_work.work);
3618         struct net_device *netdev = adapter->netdev;
3619         u32 npar_state;
3620
3621         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3622                 npar_state = QLC_SHARED_REG_RD32(adapter,
3623                                                  QLCNIC_CRB_DEV_NPAR_STATE);
3624                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3625                         qlcnic_clr_all_drv_state(adapter, 0);
3626                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3627                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
3628                                                         FW_POLL_DELAY);
3629                 else
3630                         goto attach;
3631                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3632                 return;
3633         }
3634 attach:
3635         qlcnic_dcb_get_info(adapter->dcb);
3636
3637         if (netif_running(netdev)) {
3638                 if (qlcnic_up(adapter, netdev))
3639                         goto done;
3640
3641                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3642         }
3643
3644 done:
3645         netif_device_attach(netdev);
3646         adapter->fw_fail_cnt = 0;
3647         adapter->flags &= ~QLCNIC_FW_HANG;
3648         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3649         if (adapter->portnum == 0)
3650                 qlcnic_set_drv_version(adapter);
3651
3652         if (!qlcnic_clr_drv_state(adapter))
3653                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3654                                                         FW_POLL_DELAY);
3655 }
3656
3657 static int
3658 qlcnic_check_health(struct qlcnic_adapter *adapter)
3659 {
3660         struct qlcnic_hardware_context *ahw = adapter->ahw;
3661         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
3662         u32 state = 0, heartbeat;
3663         u32 peg_status;
3664         int err = 0;
3665
3666         if (qlcnic_check_temp(adapter))
3667                 goto detach;
3668
3669         if (adapter->need_fw_reset)
3670                 qlcnic_dev_request_reset(adapter, 0);
3671
3672         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3673         if (state == QLCNIC_DEV_NEED_RESET) {
3674                 qlcnic_set_npar_non_operational(adapter);
3675                 adapter->need_fw_reset = 1;
3676         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3677                 goto detach;
3678
3679         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3680         if (heartbeat != adapter->heartbeat) {
3681                 adapter->heartbeat = heartbeat;
3682                 adapter->fw_fail_cnt = 0;
3683                 if (adapter->need_fw_reset)
3684                         goto detach;
3685
3686                 if (ahw->reset_context && qlcnic_auto_fw_reset)
3687                         qlcnic_reset_hw_context(adapter);
3688
3689                 return 0;
3690         }
3691
3692         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3693                 return 0;
3694
3695         adapter->flags |= QLCNIC_FW_HANG;
3696
3697         qlcnic_dev_request_reset(adapter, 0);
3698
3699         if (qlcnic_auto_fw_reset)
3700                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3701
3702         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3703         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3704         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3705                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3706                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3707                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3708                         "PEG_NET_4_PC: 0x%x\n",
3709                         peg_status,
3710                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3711                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3712                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3713                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3714                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3715                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3716         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3717                 dev_err(&adapter->pdev->dev,
3718                         "Firmware aborted with error code 0x00006700. "
3719                                 "Device is being reset.\n");
3720 detach:
3721         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3722                 QLCNIC_DEV_NEED_RESET;
3723
3724         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3725                                                       &adapter->state)) {
3726
3727                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3728                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3729         } else if (!qlcnic_auto_fw_reset && fw_dump->enable &&
3730                    adapter->flags & QLCNIC_FW_RESET_OWNER) {
3731                 qlcnic_dump_fw(adapter);
3732         }
3733
3734         return 1;
3735 }
3736
3737 void qlcnic_fw_poll_work(struct work_struct *work)
3738 {
3739         struct qlcnic_adapter *adapter = container_of(work,
3740                                 struct qlcnic_adapter, fw_work.work);
3741
3742         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3743                 goto reschedule;
3744
3745
3746         if (qlcnic_check_health(adapter))
3747                 return;
3748
3749         if (adapter->fhash.fnum)
3750                 qlcnic_prune_lb_filters(adapter);
3751
3752 reschedule:
3753         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3754 }
3755
3756 static int qlcnic_is_first_func(struct pci_dev *pdev)
3757 {
3758         struct pci_dev *oth_pdev;
3759         int val = pdev->devfn;
3760
3761         while (val-- > 0) {
3762                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3763                         (pdev->bus), pdev->bus->number,
3764                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3765                 if (!oth_pdev)
3766                         continue;
3767
3768                 if (oth_pdev->current_state != PCI_D3cold) {
3769                         pci_dev_put(oth_pdev);
3770                         return 0;
3771                 }
3772                 pci_dev_put(oth_pdev);
3773         }
3774         return 1;
3775 }
3776
3777 static int qlcnic_attach_func(struct pci_dev *pdev)
3778 {
3779         int err, first_func;
3780         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3781         struct net_device *netdev = adapter->netdev;
3782
3783         pdev->error_state = pci_channel_io_normal;
3784
3785         err = pci_enable_device(pdev);
3786         if (err)
3787                 return err;
3788
3789         pci_set_master(pdev);
3790         pci_restore_state(pdev);
3791
3792         first_func = qlcnic_is_first_func(pdev);
3793
3794         if (qlcnic_api_lock(adapter))
3795                 return -EINVAL;
3796
3797         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3798                 adapter->need_fw_reset = 1;
3799                 set_bit(__QLCNIC_START_FW, &adapter->state);
3800                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3801                                     QLCNIC_DEV_INITIALIZING);
3802                 QLCDB(adapter, DRV, "Restarting fw\n");
3803         }
3804         qlcnic_api_unlock(adapter);
3805
3806         err = qlcnic_start_firmware(adapter);
3807         if (err)
3808                 return err;
3809
3810         qlcnic_clr_drv_state(adapter);
3811         kfree(adapter->msix_entries);
3812         adapter->msix_entries = NULL;
3813         err = qlcnic_setup_intr(adapter);
3814
3815         if (err) {
3816                 kfree(adapter->msix_entries);
3817                 netdev_err(netdev, "failed to setup interrupt\n");
3818                 return err;
3819         }
3820
3821         if (netif_running(netdev)) {
3822                 err = qlcnic_attach(adapter);
3823                 if (err) {
3824                         qlcnic_clr_all_drv_state(adapter, 1);
3825                         clear_bit(__QLCNIC_AER, &adapter->state);
3826                         netif_device_attach(netdev);
3827                         return err;
3828                 }
3829
3830                 err = qlcnic_up(adapter, netdev);
3831                 if (err)
3832                         goto done;
3833
3834                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3835         }
3836  done:
3837         netif_device_attach(netdev);
3838         return err;
3839 }
3840
3841 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
3842                                                       pci_channel_state_t state)
3843 {
3844         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3845         struct net_device *netdev = adapter->netdev;
3846
3847         if (state == pci_channel_io_perm_failure)
3848                 return PCI_ERS_RESULT_DISCONNECT;
3849
3850         if (state == pci_channel_io_normal)
3851                 return PCI_ERS_RESULT_RECOVERED;
3852
3853         set_bit(__QLCNIC_AER, &adapter->state);
3854         netif_device_detach(netdev);
3855
3856         cancel_delayed_work_sync(&adapter->fw_work);
3857
3858         if (netif_running(netdev))
3859                 qlcnic_down(adapter, netdev);
3860
3861         qlcnic_detach(adapter);
3862         qlcnic_teardown_intr(adapter);
3863
3864         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3865
3866         pci_save_state(pdev);
3867         pci_disable_device(pdev);
3868
3869         return PCI_ERS_RESULT_NEED_RESET;
3870 }
3871
3872 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
3873 {
3874         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3875                                 PCI_ERS_RESULT_RECOVERED;
3876 }
3877
3878 static void qlcnic_82xx_io_resume(struct pci_dev *pdev)
3879 {
3880         u32 state;
3881         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3882
3883         pci_cleanup_aer_uncorrect_error_status(pdev);
3884         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3885         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3886                                                             &adapter->state))
3887                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3888                                      FW_POLL_DELAY);
3889 }
3890
3891 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3892                                                  pci_channel_state_t state)
3893 {
3894         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3895         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3896
3897         if (hw_ops->io_error_detected) {
3898                 return hw_ops->io_error_detected(pdev, state);
3899         } else {
3900                 dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
3901                 return PCI_ERS_RESULT_DISCONNECT;
3902         }
3903 }
3904
3905 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3906 {
3907         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3908         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3909
3910         if (hw_ops->io_slot_reset) {
3911                 return hw_ops->io_slot_reset(pdev);
3912         } else {
3913                 dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
3914                 return PCI_ERS_RESULT_DISCONNECT;
3915         }
3916 }
3917
3918 static void qlcnic_io_resume(struct pci_dev *pdev)
3919 {
3920         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3921         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3922
3923         if (hw_ops->io_resume)
3924                 hw_ops->io_resume(pdev);
3925         else
3926                 dev_err(&pdev->dev, "AER resume handler not registered.\n");
3927 }
3928
3929
3930 static int
3931 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3932 {
3933         int err;
3934
3935         err = qlcnic_can_start_firmware(adapter);
3936         if (err)
3937                 return err;
3938
3939         err = qlcnic_check_npar_opertional(adapter);
3940         if (err)
3941                 return err;
3942
3943         err = qlcnic_initialize_nic(adapter);
3944         if (err)
3945                 return err;
3946
3947         qlcnic_check_options(adapter);
3948
3949         err = qlcnic_set_eswitch_port_config(adapter);
3950         if (err)
3951                 return err;
3952
3953         adapter->need_fw_reset = 0;
3954
3955         return err;
3956 }
3957
3958 int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt,
3959                           int queue_type)
3960 {
3961         struct net_device *netdev = adapter->netdev;
3962         u8 max_hw_rings = 0;
3963         char buf[8];
3964         int cur_rings;
3965
3966         if (queue_type == QLCNIC_RX_QUEUE) {
3967                 max_hw_rings = adapter->max_sds_rings;
3968                 cur_rings = adapter->drv_sds_rings;
3969                 strcpy(buf, "SDS");
3970         } else if (queue_type == QLCNIC_TX_QUEUE) {
3971                 max_hw_rings = adapter->max_tx_rings;
3972                 cur_rings = adapter->drv_tx_rings;
3973                 strcpy(buf, "Tx");
3974         }
3975
3976         if (!QLCNIC_IS_MSI_FAMILY(adapter)) {
3977                 netdev_err(netdev, "No RSS/TSS support in INT-x mode\n");
3978                 return -EINVAL;
3979         }
3980
3981         if (adapter->flags & QLCNIC_MSI_ENABLED) {
3982                 netdev_err(netdev, "No RSS/TSS support in MSI mode\n");
3983                 return -EINVAL;
3984         }
3985
3986         if (!is_power_of_2(ring_cnt)) {
3987                 netdev_err(netdev, "%s rings value should be a power of 2\n",
3988                            buf);
3989                 return -EINVAL;
3990         }
3991
3992         if (qlcnic_82xx_check(adapter) && (queue_type == QLCNIC_TX_QUEUE) &&
3993             !qlcnic_check_multi_tx(adapter)) {
3994                         netdev_err(netdev, "No Multi Tx queue support\n");
3995                         return -EINVAL;
3996         }
3997
3998         if (ring_cnt > num_online_cpus()) {
3999                 netdev_err(netdev,
4000                            "%s value[%u] should not be higher than, number of online CPUs\n",
4001                            buf, num_online_cpus());
4002                 return -EINVAL;
4003         }
4004
4005         return 0;
4006 }
4007
4008 int qlcnic_setup_rings(struct qlcnic_adapter *adapter)
4009 {
4010         struct net_device *netdev = adapter->netdev;
4011         u8 tx_rings, rx_rings;
4012         int err;
4013
4014         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
4015                 return -EBUSY;
4016
4017         tx_rings = adapter->drv_tss_rings;
4018         rx_rings = adapter->drv_rss_rings;
4019
4020         netif_device_detach(netdev);
4021
4022         err = qlcnic_set_real_num_queues(adapter, tx_rings, rx_rings);
4023         if (err)
4024                 goto done;
4025
4026         if (netif_running(netdev))
4027                 __qlcnic_down(adapter, netdev);
4028
4029         qlcnic_detach(adapter);
4030
4031         if (qlcnic_83xx_check(adapter)) {
4032                 qlcnic_83xx_free_mbx_intr(adapter);
4033                 qlcnic_83xx_enable_mbx_poll(adapter);
4034         }
4035
4036         qlcnic_teardown_intr(adapter);
4037
4038         err = qlcnic_setup_intr(adapter);
4039         if (err) {
4040                 kfree(adapter->msix_entries);
4041                 netdev_err(netdev, "failed to setup interrupt\n");
4042                 return err;
4043         }
4044
4045         /* Check if we need to update real_num_{tx|rx}_queues because
4046          * qlcnic_setup_intr() may change Tx/Rx rings size
4047          */
4048         if ((tx_rings != adapter->drv_tx_rings) ||
4049             (rx_rings != adapter->drv_sds_rings)) {
4050                 err = qlcnic_set_real_num_queues(adapter,
4051                                                  adapter->drv_tx_rings,
4052                                                  adapter->drv_sds_rings);
4053                 if (err)
4054                         goto done;
4055         }
4056
4057         if (qlcnic_83xx_check(adapter)) {
4058                 qlcnic_83xx_initialize_nic(adapter, 1);
4059                 err = qlcnic_83xx_setup_mbx_intr(adapter);
4060                 qlcnic_83xx_disable_mbx_poll(adapter);
4061                 if (err) {
4062                         dev_err(&adapter->pdev->dev,
4063                                 "failed to setup mbx interrupt\n");
4064                         goto done;
4065                 }
4066         }
4067
4068         if (netif_running(netdev)) {
4069                 err = qlcnic_attach(adapter);
4070                 if (err)
4071                         goto done;
4072                 err = __qlcnic_up(adapter, netdev);
4073                 if (err)
4074                         goto done;
4075                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
4076         }
4077 done:
4078         netif_device_attach(netdev);
4079         clear_bit(__QLCNIC_RESETTING, &adapter->state);
4080         return err;
4081 }
4082
4083 #ifdef CONFIG_INET
4084
4085 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4086
4087 static void
4088 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4089                         struct net_device *dev, unsigned long event)
4090 {
4091         struct in_device *indev;
4092
4093         indev = in_dev_get(dev);
4094         if (!indev)
4095                 return;
4096
4097         for_ifa(indev) {
4098                 switch (event) {
4099                 case NETDEV_UP:
4100                         qlcnic_config_ipaddr(adapter,
4101                                         ifa->ifa_address, QLCNIC_IP_UP);
4102                         break;
4103                 case NETDEV_DOWN:
4104                         qlcnic_config_ipaddr(adapter,
4105                                         ifa->ifa_address, QLCNIC_IP_DOWN);
4106                         break;
4107                 default:
4108                         break;
4109                 }
4110         } endfor_ifa(indev);
4111
4112         in_dev_put(indev);
4113 }
4114
4115 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4116 {
4117         struct qlcnic_adapter *adapter = netdev_priv(netdev);
4118         struct net_device *dev;
4119         u16 vid;
4120
4121         qlcnic_config_indev_addr(adapter, netdev, event);
4122
4123         rcu_read_lock();
4124         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
4125                 dev = __vlan_find_dev_deep(netdev, htons(ETH_P_8021Q), vid);
4126                 if (!dev)
4127                         continue;
4128                 qlcnic_config_indev_addr(adapter, dev, event);
4129         }
4130         rcu_read_unlock();
4131 }
4132
4133 static int qlcnic_netdev_event(struct notifier_block *this,
4134                                  unsigned long event, void *ptr)
4135 {
4136         struct qlcnic_adapter *adapter;
4137         struct net_device *dev = netdev_notifier_info_to_dev(ptr);
4138
4139 recheck:
4140         if (dev == NULL)
4141                 goto done;
4142
4143         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4144                 dev = vlan_dev_real_dev(dev);
4145                 goto recheck;
4146         }
4147
4148         if (!is_qlcnic_netdev(dev))
4149                 goto done;
4150
4151         adapter = netdev_priv(dev);
4152
4153         if (!adapter)
4154                 goto done;
4155
4156         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4157                 goto done;
4158
4159         qlcnic_config_indev_addr(adapter, dev, event);
4160 done:
4161         return NOTIFY_DONE;
4162 }
4163
4164 static int
4165 qlcnic_inetaddr_event(struct notifier_block *this,
4166                 unsigned long event, void *ptr)
4167 {
4168         struct qlcnic_adapter *adapter;
4169         struct net_device *dev;
4170
4171         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4172
4173         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4174
4175 recheck:
4176         if (dev == NULL)
4177                 goto done;
4178
4179         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4180                 dev = vlan_dev_real_dev(dev);
4181                 goto recheck;
4182         }
4183
4184         if (!is_qlcnic_netdev(dev))
4185                 goto done;
4186
4187         adapter = netdev_priv(dev);
4188
4189         if (!adapter)
4190                 goto done;
4191
4192         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4193                 goto done;
4194
4195         switch (event) {
4196         case NETDEV_UP:
4197                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4198
4199                 break;
4200         case NETDEV_DOWN:
4201                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4202
4203                 break;
4204         default:
4205                 break;
4206         }
4207
4208 done:
4209         return NOTIFY_DONE;
4210 }
4211
4212 static struct notifier_block    qlcnic_netdev_cb = {
4213         .notifier_call = qlcnic_netdev_event,
4214 };
4215
4216 static struct notifier_block qlcnic_inetaddr_cb = {
4217         .notifier_call = qlcnic_inetaddr_event,
4218 };
4219 #else
4220 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4221 { }
4222 #endif
4223 static const struct pci_error_handlers qlcnic_err_handler = {
4224         .error_detected = qlcnic_io_error_detected,
4225         .slot_reset = qlcnic_io_slot_reset,
4226         .resume = qlcnic_io_resume,
4227 };
4228
4229 static struct pci_driver qlcnic_driver = {
4230         .name = qlcnic_driver_name,
4231         .id_table = qlcnic_pci_tbl,
4232         .probe = qlcnic_probe,
4233         .remove = qlcnic_remove,
4234 #ifdef CONFIG_PM
4235         .suspend = qlcnic_suspend,
4236         .resume = qlcnic_resume,
4237 #endif
4238         .shutdown = qlcnic_shutdown,
4239         .err_handler = &qlcnic_err_handler,
4240 #ifdef CONFIG_QLCNIC_SRIOV
4241         .sriov_configure = qlcnic_pci_sriov_configure,
4242 #endif
4243
4244 };
4245
4246 static int __init qlcnic_init_module(void)
4247 {
4248         int ret;
4249
4250         printk(KERN_INFO "%s\n", qlcnic_driver_string);
4251
4252 #ifdef CONFIG_INET
4253         register_netdevice_notifier(&qlcnic_netdev_cb);
4254         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4255 #endif
4256
4257         ret = pci_register_driver(&qlcnic_driver);
4258         if (ret) {
4259 #ifdef CONFIG_INET
4260                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4261                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4262 #endif
4263         }
4264
4265         return ret;
4266 }
4267
4268 module_init(qlcnic_init_module);
4269
4270 static void __exit qlcnic_exit_module(void)
4271 {
4272         pci_unregister_driver(&qlcnic_driver);
4273
4274 #ifdef CONFIG_INET
4275         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4276         unregister_netdevice_notifier(&qlcnic_netdev_cb);
4277 #endif
4278 }
4279
4280 module_exit(qlcnic_exit_module);