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_exact(pdev, adapter->msix_entries, num_msix);
 694         if (err == -ENOSPC) {
 695                 if (!adapter->drv_tss_rings && !adapter->drv_rss_rings)
 696                         return err;
 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                         dev_err(&adapter->pdev->dev, "%s: Invalid function 0x%x, max 0x%x\n",
1018                                 __func__, pfn, ahw->max_vnic_func);
1019                         goto err_eswitch;
1020                 }
1021
1022                 if (!pci_info[i].active ||
1023                     (pci_info[i].type != QLCNIC_TYPE_NIC))
1024                         continue;
1025
1026                 if (qlcnic_port_eswitch_cfg_capability(adapter)) {
1027                         if (!qlcnic_83xx_set_port_eswitch_status(adapter, pfn,
1028                                                                  &id))
1029                                 adapter->npars[j].eswitch_status = true;
1030                         else
1031                                 continue;
1032                 } else {
1033                         adapter->npars[j].eswitch_status = true;
1034                 }
1035
1036                 adapter->npars[j].pci_func = pfn;
1037                 adapter->npars[j].active = (u8)pci_info[i].active;
1038                 adapter->npars[j].type = (u8)pci_info[i].type;
1039                 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
1040                 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
1041                 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
1042
1043                 memcpy(&adapter->npars[j].mac, &pci_info[i].mac, ETH_ALEN);
1044                 j++;
1045         }
1046
1047         /* Update eSwitch status for adapters without per port eSwitch
1048          * configuration capability
1049          */
1050         if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
1051                 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
1052                         adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
1053         }
1054
1055         kfree(pci_info);
1056         return 0;
1057
1058 err_eswitch:
1059         kfree(adapter->eswitch);
1060         adapter->eswitch = NULL;
1061 err_npars:
1062         kfree(adapter->npars);
1063         adapter->npars = NULL;
1064 err_pci_info:
1065         kfree(pci_info);
1066
1067         return ret;
1068 }
1069
1070 static int
1071 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
1072 {
1073         u8 id;
1074         int ret;
1075         u32 data = QLCNIC_MGMT_FUNC;
1076         struct qlcnic_hardware_context *ahw = adapter->ahw;
1077
1078         ret = qlcnic_api_lock(adapter);
1079         if (ret)
1080                 goto err_lock;
1081
1082         id = ahw->pci_func;
1083         data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1084         data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
1085                QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
1086         QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
1087         qlcnic_api_unlock(adapter);
1088 err_lock:
1089         return ret;
1090 }
1091
1092 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
1093                             const struct pci_device_id *ent)
1094 {
1095         u32 op_mode, priv_level;
1096
1097         /* Determine FW API version */
1098         adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
1099                                                            QLCNIC_FW_API);
1100
1101         /* Find PCI function number */
1102         qlcnic_get_func_no(adapter);
1103
1104         /* Determine function privilege level */
1105         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1106         if (op_mode == QLC_DEV_DRV_DEFAULT)
1107                 priv_level = QLCNIC_MGMT_FUNC;
1108         else
1109                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1110
1111         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
1112                 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
1113                 dev_info(&adapter->pdev->dev,
1114                         "HAL Version: %d Non Privileged function\n",
1115                          adapter->ahw->fw_hal_version);
1116                 adapter->nic_ops = &qlcnic_vf_ops;
1117         } else
1118                 adapter->nic_ops = &qlcnic_ops;
1119 }
1120
1121 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
1122 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
1123 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
1124 {
1125         switch (dev_id) {
1126         case PCI_DEVICE_ID_QLOGIC_QLE824X:
1127                 *bar = QLCNIC_82XX_BAR0_LENGTH;
1128                 break;
1129         case PCI_DEVICE_ID_QLOGIC_QLE834X:
1130         case PCI_DEVICE_ID_QLOGIC_QLE844X:
1131         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
1132         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
1133                 *bar = QLCNIC_83XX_BAR0_LENGTH;
1134                 break;
1135         default:
1136                 *bar = 0;
1137         }
1138 }
1139
1140 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
1141                                 struct qlcnic_hardware_context *ahw)
1142 {
1143         u32 offset;
1144         void __iomem *mem_ptr0 = NULL;
1145         unsigned long mem_len, pci_len0 = 0, bar0_len;
1146
1147         /* remap phys address */
1148         mem_len = pci_resource_len(pdev, 0);
1149
1150         qlcnic_get_bar_length(pdev->device, &bar0_len);
1151         if (mem_len >= bar0_len) {
1152
1153                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
1154                 if (mem_ptr0 == NULL) {
1155                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
1156                         return -EIO;
1157                 }
1158                 pci_len0 = mem_len;
1159         } else {
1160                 return -EIO;
1161         }
1162
1163         dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
1164
1165         ahw->pci_base0 = mem_ptr0;
1166         ahw->pci_len0 = pci_len0;
1167         offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
1168         qlcnic_get_ioaddr(ahw, offset);
1169
1170         return 0;
1171 }
1172
1173 static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
1174                                          int index)
1175 {
1176         struct pci_dev *pdev = adapter->pdev;
1177         unsigned short subsystem_vendor;
1178         bool ret = true;
1179
1180         subsystem_vendor = pdev->subsystem_vendor;
1181
1182         if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
1183             pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1184                 if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
1185                     qlcnic_boards[index].sub_device == pdev->subsystem_device)
1186                         ret = true;
1187                 else
1188                         ret = false;
1189         }
1190
1191         return ret;
1192 }
1193
1194 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
1195 {
1196         struct pci_dev *pdev = adapter->pdev;
1197         int i, found = 0;
1198
1199         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1200                 if (qlcnic_boards[i].vendor == pdev->vendor &&
1201                     qlcnic_boards[i].device == pdev->device &&
1202                     qlcnic_validate_subsystem_id(adapter, i)) {
1203                         found = 1;
1204                         break;
1205                 }
1206         }
1207
1208         if (!found)
1209                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
1210         else
1211                 sprintf(name, "%pM: %s" , adapter->mac_addr,
1212                         qlcnic_boards[i].short_name);
1213 }
1214
1215 static void
1216 qlcnic_check_options(struct qlcnic_adapter *adapter)
1217 {
1218         int err;
1219         u32 fw_major, fw_minor, fw_build, prev_fw_version;
1220         struct pci_dev *pdev = adapter->pdev;
1221         struct qlcnic_hardware_context *ahw = adapter->ahw;
1222         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
1223
1224         prev_fw_version = adapter->fw_version;
1225
1226         fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
1227         fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
1228         fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
1229
1230         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
1231
1232         err = qlcnic_get_board_info(adapter);
1233         if (err) {
1234                 dev_err(&pdev->dev, "Error getting board config info.\n");
1235                 return;
1236         }
1237         if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
1238                 if (fw_dump->tmpl_hdr == NULL ||
1239                                 adapter->fw_version > prev_fw_version) {
1240                         if (fw_dump->tmpl_hdr)
1241                                 vfree(fw_dump->tmpl_hdr);
1242                         if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1243                                 dev_info(&pdev->dev,
1244                                         "Supports FW dump capability\n");
1245                 }
1246         }
1247
1248         dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
1249                  QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
1250
1251         if (adapter->ahw->port_type == QLCNIC_XGBE) {
1252                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1253                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
1254                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
1255                 } else {
1256                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
1257                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
1258                 }
1259
1260                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1261                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1262
1263         } else if (adapter->ahw->port_type == QLCNIC_GBE) {
1264                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
1265                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1266                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1267                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
1268         }
1269
1270         adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
1271
1272         adapter->num_txd = MAX_CMD_DESCRIPTORS;
1273
1274         adapter->max_rds_rings = MAX_RDS_RINGS;
1275 }
1276
1277 static int
1278 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
1279 {
1280         struct qlcnic_info nic_info;
1281         int err = 0;
1282
1283         memset(&nic_info, 0, sizeof(struct qlcnic_info));
1284         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
1285         if (err)
1286                 return err;
1287
1288         adapter->ahw->physical_port = (u8)nic_info.phys_port;
1289         adapter->ahw->switch_mode = nic_info.switch_mode;
1290         adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
1291         adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
1292         adapter->ahw->capabilities = nic_info.capabilities;
1293
1294         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1295                 u32 temp;
1296                 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
1297                 if (err == -EIO)
1298                         return err;
1299                 adapter->ahw->extra_capability[0] = temp;
1300         } else {
1301                 adapter->ahw->extra_capability[0] = 0;
1302         }
1303
1304         adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1305         adapter->ahw->max_mtu = nic_info.max_mtu;
1306
1307         if (adapter->ahw->capabilities & BIT_6) {
1308                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1309                 adapter->ahw->nic_mode = QLCNIC_VNIC_MODE;
1310                 adapter->max_tx_rings = QLCNIC_MAX_HW_VNIC_TX_RINGS;
1311                 adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
1312
1313                 dev_info(&adapter->pdev->dev, "vNIC mode enabled.\n");
1314         } else {
1315                 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1316                 adapter->max_tx_rings = QLCNIC_MAX_HW_TX_RINGS;
1317                 adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
1318                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1319         }
1320
1321         return err;
1322 }
1323
1324 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1325                             struct qlcnic_esw_func_cfg *esw_cfg)
1326 {
1327         if (esw_cfg->discard_tagged)
1328                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1329         else
1330                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1331
1332         if (esw_cfg->vlan_id) {
1333                 adapter->rx_pvid = esw_cfg->vlan_id;
1334                 adapter->tx_pvid = esw_cfg->vlan_id;
1335         } else {
1336                 adapter->rx_pvid = 0;
1337                 adapter->tx_pvid = 0;
1338         }
1339 }
1340
1341 static int
1342 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1343 {
1344         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1345         int err;
1346
1347         if (qlcnic_sriov_vf_check(adapter)) {
1348                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1349                 if (err) {
1350                         netdev_err(netdev,
1351                                    "Cannot add VLAN filter for VLAN id %d, err=%d",
1352                                    vid, err);
1353                         return err;
1354                 }
1355         }
1356
1357         set_bit(vid, adapter->vlans);
1358         return 0;
1359 }
1360
1361 static int
1362 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1363 {
1364         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1365         int err;
1366
1367         if (qlcnic_sriov_vf_check(adapter)) {
1368                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1369                 if (err) {
1370                         netdev_err(netdev,
1371                                    "Cannot delete VLAN filter for VLAN id %d, err=%d",
1372                                    vid, err);
1373                         return err;
1374                 }
1375         }
1376
1377         qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1378         clear_bit(vid, adapter->vlans);
1379         return 0;
1380 }
1381
1382 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1383                                       struct qlcnic_esw_func_cfg *esw_cfg)
1384 {
1385         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1386                                 QLCNIC_PROMISC_DISABLED);
1387
1388         if (esw_cfg->mac_anti_spoof)
1389                 adapter->flags |= QLCNIC_MACSPOOF;
1390
1391         if (!esw_cfg->mac_override)
1392                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1393
1394         if (!esw_cfg->promisc_mode)
1395                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1396 }
1397
1398 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1399 {
1400         struct qlcnic_esw_func_cfg esw_cfg;
1401
1402         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1403                 return 0;
1404
1405         esw_cfg.pci_func = adapter->ahw->pci_func;
1406         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1407                         return -EIO;
1408         qlcnic_set_vlan_config(adapter, &esw_cfg);
1409         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1410         qlcnic_set_netdev_features(adapter, &esw_cfg);
1411
1412         return 0;
1413 }
1414
1415 void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1416                                 struct qlcnic_esw_func_cfg *esw_cfg)
1417 {
1418         struct net_device *netdev = adapter->netdev;
1419
1420         if (qlcnic_83xx_check(adapter))
1421                 return;
1422
1423         adapter->offload_flags = esw_cfg->offload_flags;
1424         adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1425         netdev_update_features(netdev);
1426         adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1427 }
1428
1429 static int
1430 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1431 {
1432         u32 op_mode, priv_level;
1433         int err = 0;
1434
1435         err = qlcnic_initialize_nic(adapter);
1436         if (err)
1437                 return err;
1438
1439         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1440                 return 0;
1441
1442         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1443         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1444
1445         if (op_mode == QLC_DEV_DRV_DEFAULT)
1446                 priv_level = QLCNIC_MGMT_FUNC;
1447         else
1448                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1449
1450         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1451                 if (priv_level == QLCNIC_MGMT_FUNC) {
1452                         adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1453                         err = qlcnic_init_pci_info(adapter);
1454                         if (err)
1455                                 return err;
1456                         /* Set privilege level for other functions */
1457                         qlcnic_set_function_modes(adapter);
1458                         dev_info(&adapter->pdev->dev,
1459                                 "HAL Version: %d, Management function\n",
1460                                  adapter->ahw->fw_hal_version);
1461                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1462                         adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1463                         dev_info(&adapter->pdev->dev,
1464                                 "HAL Version: %d, Privileged function\n",
1465                                  adapter->ahw->fw_hal_version);
1466                 }
1467         } else {
1468                 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1469         }
1470
1471         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1472
1473         return err;
1474 }
1475
1476 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1477 {
1478         struct qlcnic_esw_func_cfg esw_cfg;
1479         struct qlcnic_npar_info *npar;
1480         u8 i;
1481
1482         if (adapter->need_fw_reset)
1483                 return 0;
1484
1485         for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1486                 if (!adapter->npars[i].eswitch_status)
1487                         continue;
1488
1489                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1490                 esw_cfg.pci_func = adapter->npars[i].pci_func;
1491                 esw_cfg.mac_override = BIT_0;
1492                 esw_cfg.promisc_mode = BIT_0;
1493                 if (qlcnic_82xx_check(adapter)) {
1494                         esw_cfg.offload_flags = BIT_0;
1495                         if (QLCNIC_IS_TSO_CAPABLE(adapter))
1496                                 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1497                 }
1498                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1499                         return -EIO;
1500                 npar = &adapter->npars[i];
1501                 npar->pvid = esw_cfg.vlan_id;
1502                 npar->mac_override = esw_cfg.mac_override;
1503                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1504                 npar->discard_tagged = esw_cfg.discard_tagged;
1505                 npar->promisc_mode = esw_cfg.promisc_mode;
1506                 npar->offload_flags = esw_cfg.offload_flags;
1507         }
1508
1509         return 0;
1510 }
1511
1512
1513 static int
1514 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1515                         struct qlcnic_npar_info *npar, int pci_func)
1516 {
1517         struct qlcnic_esw_func_cfg esw_cfg;
1518         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1519         esw_cfg.pci_func = pci_func;
1520         esw_cfg.vlan_id = npar->pvid;
1521         esw_cfg.mac_override = npar->mac_override;
1522         esw_cfg.discard_tagged = npar->discard_tagged;
1523         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1524         esw_cfg.offload_flags = npar->offload_flags;
1525         esw_cfg.promisc_mode = npar->promisc_mode;
1526         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1527                 return -EIO;
1528
1529         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1530         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1531                 return -EIO;
1532
1533         return 0;
1534 }
1535
1536 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1537 {
1538         int i, err;
1539         struct qlcnic_npar_info *npar;
1540         struct qlcnic_info nic_info;
1541         u8 pci_func;
1542
1543         if (qlcnic_82xx_check(adapter))
1544                 if (!adapter->need_fw_reset)
1545                         return 0;
1546
1547         /* Set the NPAR config data after FW reset */
1548         for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1549                 npar = &adapter->npars[i];
1550                 pci_func = npar->pci_func;
1551                 if (!adapter->npars[i].eswitch_status)
1552                         continue;
1553
1554                 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1555                 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1556                 if (err)
1557                         return err;
1558                 nic_info.min_tx_bw = npar->min_bw;
1559                 nic_info.max_tx_bw = npar->max_bw;
1560                 err = qlcnic_set_nic_info(adapter, &nic_info);
1561                 if (err)
1562                         return err;
1563
1564                 if (npar->enable_pm) {
1565                         err = qlcnic_config_port_mirroring(adapter,
1566                                                            npar->dest_npar, 1,
1567                                                            pci_func);
1568                         if (err)
1569                                 return err;
1570                 }
1571                 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1572                 if (err)
1573                         return err;
1574         }
1575         return 0;
1576 }
1577
1578 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1579 {
1580         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1581         u32 npar_state;
1582
1583         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1584                 return 0;
1585
1586         npar_state = QLC_SHARED_REG_RD32(adapter,
1587                                          QLCNIC_CRB_DEV_NPAR_STATE);
1588         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1589                 msleep(1000);
1590                 npar_state = QLC_SHARED_REG_RD32(adapter,
1591                                                  QLCNIC_CRB_DEV_NPAR_STATE);
1592         }
1593         if (!npar_opt_timeo) {
1594                 dev_err(&adapter->pdev->dev,
1595                         "Waiting for NPAR state to operational timeout\n");
1596                 return -EIO;
1597         }
1598         return 0;
1599 }
1600
1601 static int
1602 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1603 {
1604         int err;
1605
1606         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1607             adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1608                 return 0;
1609
1610         err = qlcnic_set_default_offload_settings(adapter);
1611         if (err)
1612                 return err;
1613
1614         err = qlcnic_reset_npar_config(adapter);
1615         if (err)
1616                 return err;
1617
1618         qlcnic_dev_set_npar_ready(adapter);
1619
1620         return err;
1621 }
1622
1623 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1624 {
1625         int err;
1626
1627         err = qlcnic_can_start_firmware(adapter);
1628         if (err < 0)
1629                 return err;
1630         else if (!err)
1631                 goto check_fw_status;
1632
1633         if (qlcnic_load_fw_file)
1634                 qlcnic_request_firmware(adapter);
1635         else {
1636                 err = qlcnic_check_flash_fw_ver(adapter);
1637                 if (err)
1638                         goto err_out;
1639
1640                 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1641         }
1642
1643         err = qlcnic_need_fw_reset(adapter);
1644         if (err == 0)
1645                 goto check_fw_status;
1646
1647         err = qlcnic_pinit_from_rom(adapter);
1648         if (err)
1649                 goto err_out;
1650
1651         err = qlcnic_load_firmware(adapter);
1652         if (err)
1653                 goto err_out;
1654
1655         qlcnic_release_firmware(adapter);
1656         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1657
1658 check_fw_status:
1659         err = qlcnic_check_fw_status(adapter);
1660         if (err)
1661                 goto err_out;
1662
1663         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1664         qlcnic_idc_debug_info(adapter, 1);
1665         err = qlcnic_check_eswitch_mode(adapter);
1666         if (err) {
1667                 dev_err(&adapter->pdev->dev,
1668                         "Memory allocation failed for eswitch\n");
1669                 goto err_out;
1670         }
1671         err = qlcnic_set_mgmt_operations(adapter);
1672         if (err)
1673                 goto err_out;
1674
1675         qlcnic_check_options(adapter);
1676         adapter->need_fw_reset = 0;
1677
1678         qlcnic_release_firmware(adapter);
1679         return 0;
1680
1681 err_out:
1682         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1683         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1684
1685         qlcnic_release_firmware(adapter);
1686         return err;
1687 }
1688
1689 static int
1690 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1691 {
1692         irq_handler_t handler;
1693         struct qlcnic_host_sds_ring *sds_ring;
1694         struct qlcnic_host_tx_ring *tx_ring;
1695         int err, ring, num_sds_rings;
1696
1697         unsigned long flags = 0;
1698         struct net_device *netdev = adapter->netdev;
1699         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1700
1701         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1702                 if (qlcnic_82xx_check(adapter))
1703                         handler = qlcnic_tmp_intr;
1704                 else
1705                         handler = qlcnic_83xx_tmp_intr;
1706                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1707                         flags |= IRQF_SHARED;
1708
1709         } else {
1710                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1711                         handler = qlcnic_msix_intr;
1712                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1713                         handler = qlcnic_msi_intr;
1714                 else {
1715                         flags |= IRQF_SHARED;
1716                         if (qlcnic_82xx_check(adapter))
1717                                 handler = qlcnic_intr;
1718                         else
1719                                 handler = qlcnic_83xx_intr;
1720                 }
1721         }
1722         adapter->irq = netdev->irq;
1723
1724         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1725                 if (qlcnic_82xx_check(adapter) ||
1726                     (qlcnic_83xx_check(adapter) &&
1727                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1728                         num_sds_rings = adapter->drv_sds_rings;
1729                         for (ring = 0; ring < num_sds_rings; ring++) {
1730                                 sds_ring = &recv_ctx->sds_rings[ring];
1731                                 if (qlcnic_82xx_check(adapter) &&
1732                                     !qlcnic_check_multi_tx(adapter) &&
1733                                     (ring == (num_sds_rings - 1))) {
1734                                         if (!(adapter->flags &
1735                                               QLCNIC_MSIX_ENABLED))
1736                                                 snprintf(sds_ring->name,
1737                                                          sizeof(sds_ring->name),
1738                                                          "qlcnic");
1739                                         else
1740                                                 snprintf(sds_ring->name,
1741                                                          sizeof(sds_ring->name),
1742                                                          "%s-tx-0-rx-%d",
1743                                                          netdev->name, ring);
1744                                 } else {
1745                                         snprintf(sds_ring->name,
1746                                                  sizeof(sds_ring->name),
1747                                                  "%s-rx-%d",
1748                                                  netdev->name, ring);
1749                                 }
1750                                 err = request_irq(sds_ring->irq, handler, flags,
1751                                                   sds_ring->name, sds_ring);
1752                                 if (err)
1753                                         return err;
1754                         }
1755                 }
1756                 if ((qlcnic_82xx_check(adapter) &&
1757                      qlcnic_check_multi_tx(adapter)) ||
1758                     (qlcnic_83xx_check(adapter) &&
1759                      (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1760                      !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
1761                         handler = qlcnic_msix_tx_intr;
1762                         for (ring = 0; ring < adapter->drv_tx_rings;
1763                              ring++) {
1764                                 tx_ring = &adapter->tx_ring[ring];
1765                                 snprintf(tx_ring->name, sizeof(tx_ring->name),
1766                                          "%s-tx-%d", netdev->name, ring);
1767                                 err = request_irq(tx_ring->irq, handler, flags,
1768                                                   tx_ring->name, tx_ring);
1769                                 if (err)
1770                                         return err;
1771                         }
1772                 }
1773         }
1774         return 0;
1775 }
1776
1777 static void
1778 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1779 {
1780         int ring;
1781         struct qlcnic_host_sds_ring *sds_ring;
1782         struct qlcnic_host_tx_ring *tx_ring;
1783
1784         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1785
1786         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1787                 if (qlcnic_82xx_check(adapter) ||
1788                     (qlcnic_83xx_check(adapter) &&
1789                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1790                         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1791                                 sds_ring = &recv_ctx->sds_rings[ring];
1792                                 free_irq(sds_ring->irq, sds_ring);
1793                         }
1794                 }
1795                 if ((qlcnic_83xx_check(adapter) &&
1796                      !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
1797                     (qlcnic_82xx_check(adapter) &&
1798                      qlcnic_check_multi_tx(adapter))) {
1799                         for (ring = 0; ring < adapter->drv_tx_rings;
1800                              ring++) {
1801                                 tx_ring = &adapter->tx_ring[ring];
1802                                 if (tx_ring->irq)
1803                                         free_irq(tx_ring->irq, tx_ring);
1804                         }
1805                 }
1806         }
1807 }
1808
1809 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1810 {
1811         u32 capab = 0;
1812
1813         if (qlcnic_82xx_check(adapter)) {
1814                 if (adapter->ahw->extra_capability[0] &
1815                     QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1816                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1817         } else {
1818                 capab = adapter->ahw->capabilities;
1819                 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1820                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1821         }
1822 }
1823
1824 static int qlcnic_config_def_intr_coalesce(struct qlcnic_adapter *adapter)
1825 {
1826         struct qlcnic_hardware_context *ahw = adapter->ahw;
1827         int err;
1828
1829         /* Initialize interrupt coalesce parameters */
1830         ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1831
1832         if (qlcnic_83xx_check(adapter)) {
1833                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
1834                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1835                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1836                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1837                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1838
1839                 err = qlcnic_83xx_set_rx_tx_intr_coal(adapter);
1840         } else {
1841                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1842                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1843                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1844
1845                 err = qlcnic_82xx_set_rx_coalesce(adapter);
1846         }
1847
1848         return err;
1849 }
1850
1851 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1852 {
1853         int ring;
1854         struct qlcnic_host_rds_ring *rds_ring;
1855
1856         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1857                 return -EIO;
1858
1859         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1860                 return 0;
1861
1862         if (qlcnic_set_eswitch_port_config(adapter))
1863                 return -EIO;
1864
1865         qlcnic_get_lro_mss_capability(adapter);
1866
1867         if (qlcnic_fw_create_ctx(adapter))
1868                 return -EIO;
1869
1870         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1871                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1872                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1873         }
1874
1875         qlcnic_set_multi(netdev);
1876         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1877
1878         adapter->ahw->linkup = 0;
1879
1880         if (adapter->drv_sds_rings > 1)
1881                 qlcnic_config_rss(adapter, 1);
1882
1883         qlcnic_config_def_intr_coalesce(adapter);
1884
1885         if (netdev->features & NETIF_F_LRO)
1886                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1887
1888         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1889         qlcnic_napi_enable(adapter);
1890
1891         qlcnic_linkevent_request(adapter, 1);
1892
1893         adapter->ahw->reset_context = 0;
1894         netif_tx_start_all_queues(netdev);
1895         return 0;
1896 }
1897
1898 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1899 {
1900         int err = 0;
1901
1902         rtnl_lock();
1903         if (netif_running(netdev))
1904                 err = __qlcnic_up(adapter, netdev);
1905         rtnl_unlock();
1906
1907         return err;
1908 }
1909
1910 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1911 {
1912         int ring;
1913
1914         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1915                 return;
1916
1917         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1918                 return;
1919
1920         if (qlcnic_sriov_vf_check(adapter))
1921                 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1922         smp_mb();
1923         netif_carrier_off(netdev);
1924         adapter->ahw->linkup = 0;
1925         netif_tx_disable(netdev);
1926
1927         qlcnic_free_mac_list(adapter);
1928
1929         if (adapter->fhash.fnum)
1930                 qlcnic_delete_lb_filters(adapter);
1931
1932         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1933
1934         qlcnic_napi_disable(adapter);
1935
1936         qlcnic_fw_destroy_ctx(adapter);
1937         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1938
1939         qlcnic_reset_rx_buffers_list(adapter);
1940
1941         for (ring = 0; ring < adapter->drv_tx_rings; ring++)
1942                 qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
1943 }
1944
1945 /* Usage: During suspend and firmware recovery module */
1946
1947 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1948 {
1949         rtnl_lock();
1950         if (netif_running(netdev))
1951                 __qlcnic_down(adapter, netdev);
1952         rtnl_unlock();
1953
1954 }
1955
1956 int
1957 qlcnic_attach(struct qlcnic_adapter *adapter)
1958 {
1959         struct net_device *netdev = adapter->netdev;
1960         struct pci_dev *pdev = adapter->pdev;
1961         int err;
1962
1963         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1964                 return 0;
1965
1966         err = qlcnic_napi_add(adapter, netdev);
1967         if (err)
1968                 return err;
1969
1970         err = qlcnic_alloc_sw_resources(adapter);
1971         if (err) {
1972                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1973                 goto err_out_napi_del;
1974         }
1975
1976         err = qlcnic_alloc_hw_resources(adapter);
1977         if (err) {
1978                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1979                 goto err_out_free_sw;
1980         }
1981
1982         err = qlcnic_request_irq(adapter);
1983         if (err) {
1984                 dev_err(&pdev->dev, "failed to setup interrupt\n");
1985                 goto err_out_free_hw;
1986         }
1987
1988         qlcnic_create_sysfs_entries(adapter);
1989
1990 #ifdef CONFIG_QLCNIC_VXLAN
1991         if (qlcnic_encap_rx_offload(adapter))
1992                 vxlan_get_rx_port(netdev);
1993 #endif
1994
1995         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1996         return 0;
1997
1998 err_out_free_hw:
1999         qlcnic_free_hw_resources(adapter);
2000 err_out_free_sw:
2001         qlcnic_free_sw_resources(adapter);
2002 err_out_napi_del:
2003         qlcnic_napi_del(adapter);
2004         return err;
2005 }
2006
2007 void qlcnic_detach(struct qlcnic_adapter *adapter)
2008 {
2009         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2010                 return;
2011
2012         qlcnic_remove_sysfs_entries(adapter);
2013
2014         qlcnic_free_hw_resources(adapter);
2015         qlcnic_release_rx_buffers(adapter);
2016         qlcnic_free_irq(adapter);
2017         qlcnic_napi_del(adapter);
2018         qlcnic_free_sw_resources(adapter);
2019
2020         adapter->is_up = 0;
2021 }
2022
2023 void qlcnic_diag_free_res(struct net_device *netdev, int drv_sds_rings)
2024 {
2025         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2026         struct qlcnic_host_sds_ring *sds_ring;
2027         int drv_tx_rings = adapter->drv_tx_rings;
2028         int ring;
2029
2030         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
2031         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2032                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2033                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
2034                         qlcnic_disable_sds_intr(adapter, sds_ring);
2035                 }
2036         }
2037
2038         qlcnic_fw_destroy_ctx(adapter);
2039
2040         qlcnic_detach(adapter);
2041
2042         adapter->ahw->diag_test = 0;
2043         adapter->drv_sds_rings = drv_sds_rings;
2044         adapter->drv_tx_rings = drv_tx_rings;
2045
2046         if (qlcnic_attach(adapter))
2047                 goto out;
2048
2049         if (netif_running(netdev))
2050                 __qlcnic_up(adapter, netdev);
2051 out:
2052         netif_device_attach(netdev);
2053 }
2054
2055 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
2056 {
2057         struct qlcnic_hardware_context *ahw = adapter->ahw;
2058         int err = 0;
2059
2060         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
2061                                 GFP_KERNEL);
2062         if (!adapter->recv_ctx) {
2063                 err = -ENOMEM;
2064                 goto err_out;
2065         }
2066
2067         if (qlcnic_83xx_check(adapter)) {
2068                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
2069                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
2070                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
2071                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2072                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2073         } else {
2074                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
2075                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2076                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2077         }
2078
2079         /* clear stats */
2080         memset(&adapter->stats, 0, sizeof(adapter->stats));
2081 err_out:
2082         return err;
2083 }
2084
2085 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
2086 {
2087         kfree(adapter->recv_ctx);
2088         adapter->recv_ctx = NULL;
2089
2090         if (adapter->ahw->fw_dump.tmpl_hdr) {
2091                 vfree(adapter->ahw->fw_dump.tmpl_hdr);
2092                 adapter->ahw->fw_dump.tmpl_hdr = NULL;
2093         }
2094
2095         kfree(adapter->ahw->reset.buff);
2096         adapter->ahw->fw_dump.tmpl_hdr = NULL;
2097 }
2098
2099 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
2100 {
2101         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2102         struct qlcnic_host_sds_ring *sds_ring;
2103         struct qlcnic_host_rds_ring *rds_ring;
2104         int ring;
2105         int ret;
2106
2107         netif_device_detach(netdev);
2108
2109         if (netif_running(netdev))
2110                 __qlcnic_down(adapter, netdev);
2111
2112         qlcnic_detach(adapter);
2113
2114         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
2115         adapter->ahw->diag_test = test;
2116         adapter->ahw->linkup = 0;
2117
2118         ret = qlcnic_attach(adapter);
2119         if (ret) {
2120                 netif_device_attach(netdev);
2121                 return ret;
2122         }
2123
2124         ret = qlcnic_fw_create_ctx(adapter);
2125         if (ret) {
2126                 qlcnic_detach(adapter);
2127                 netif_device_attach(netdev);
2128                 return ret;
2129         }
2130
2131         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
2132                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
2133                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
2134         }
2135
2136         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2137                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2138                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
2139                         qlcnic_enable_sds_intr(adapter, sds_ring);
2140                 }
2141         }
2142
2143         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
2144                 adapter->ahw->loopback_state = 0;
2145                 qlcnic_linkevent_request(adapter, 1);
2146         }
2147
2148         set_bit(__QLCNIC_DEV_UP, &adapter->state);
2149
2150         return 0;
2151 }
2152
2153 /* Reset context in hardware only */
2154 static int
2155 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
2156 {
2157         struct net_device *netdev = adapter->netdev;
2158
2159         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2160                 return -EBUSY;
2161
2162         netif_device_detach(netdev);
2163
2164         qlcnic_down(adapter, netdev);
2165
2166         qlcnic_up(adapter, netdev);
2167
2168         netif_device_attach(netdev);
2169
2170         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2171         netdev_info(adapter->netdev, "%s: soft reset complete\n", __func__);
2172         return 0;
2173 }
2174
2175 int
2176 qlcnic_reset_context(struct qlcnic_adapter *adapter)
2177 {
2178         int err = 0;
2179         struct net_device *netdev = adapter->netdev;
2180
2181         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2182                 return -EBUSY;
2183
2184         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
2185
2186                 netif_device_detach(netdev);
2187
2188                 if (netif_running(netdev))
2189                         __qlcnic_down(adapter, netdev);
2190
2191                 qlcnic_detach(adapter);
2192
2193                 if (netif_running(netdev)) {
2194                         err = qlcnic_attach(adapter);
2195                         if (!err) {
2196                                 __qlcnic_up(adapter, netdev);
2197                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2198                         }
2199                 }
2200
2201                 netif_device_attach(netdev);
2202         }
2203
2204         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2205         return err;
2206 }
2207
2208 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
2209 {
2210         struct qlcnic_hardware_context *ahw = adapter->ahw;
2211         u16 act_pci_fn = ahw->total_nic_func;
2212         u16 count;
2213
2214         ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
2215         if (act_pci_fn <= 2)
2216                 count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
2217                          act_pci_fn;
2218         else
2219                 count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
2220                          act_pci_fn;
2221         ahw->max_uc_count = count;
2222 }
2223
2224 int
2225 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
2226                     int pci_using_dac)
2227 {
2228         int err;
2229         struct pci_dev *pdev = adapter->pdev;
2230
2231         adapter->rx_csum = 1;
2232         adapter->ahw->mc_enabled = 0;
2233         qlcnic_set_mac_filter_count(adapter);
2234
2235         netdev->netdev_ops         = &qlcnic_netdev_ops;
2236         netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
2237
2238         qlcnic_change_mtu(netdev, netdev->mtu);
2239
2240         if (qlcnic_sriov_vf_check(adapter))
2241                 SET_ETHTOOL_OPS(netdev, &qlcnic_sriov_vf_ethtool_ops);
2242         else
2243                 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
2244
2245         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2246                              NETIF_F_IPV6_CSUM | NETIF_F_GRO |
2247                              NETIF_F_HW_VLAN_CTAG_RX);
2248         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
2249                                   NETIF_F_IPV6_CSUM);
2250
2251         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
2252                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
2253                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
2254         }
2255
2256         if (pci_using_dac) {
2257                 netdev->features |= NETIF_F_HIGHDMA;
2258                 netdev->vlan_features |= NETIF_F_HIGHDMA;
2259         }
2260
2261         if (qlcnic_vlan_tx_check(adapter))
2262                 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
2263
2264         if (qlcnic_sriov_vf_check(adapter))
2265                 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2266
2267         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
2268                 netdev->features |= NETIF_F_LRO;
2269
2270         if (qlcnic_encap_tx_offload(adapter)) {
2271                 netdev->features |= NETIF_F_GSO_UDP_TUNNEL;
2272
2273                 /* encapsulation Tx offload supported by Adapter */
2274                 netdev->hw_enc_features = NETIF_F_IP_CSUM        |
2275                                           NETIF_F_GSO_UDP_TUNNEL |
2276                                           NETIF_F_TSO            |
2277                                           NETIF_F_TSO6;
2278         }
2279
2280         if (qlcnic_encap_rx_offload(adapter))
2281                 netdev->hw_enc_features |= NETIF_F_RXCSUM;
2282
2283         netdev->hw_features = netdev->features;
2284         netdev->priv_flags |= IFF_UNICAST_FLT;
2285         netdev->irq = adapter->msix_entries[0].vector;
2286
2287         err = qlcnic_set_real_num_queues(adapter, netdev);
2288         if (err)
2289                 return err;
2290
2291         err = register_netdev(netdev);
2292         if (err) {
2293                 dev_err(&pdev->dev, "failed to register net device\n");
2294                 return err;
2295         }
2296
2297         qlcnic_dcb_init_dcbnl_ops(adapter->dcb);
2298
2299         return 0;
2300 }
2301
2302 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
2303 {
2304         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
2305                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
2306                 *pci_using_dac = 1;
2307         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
2308                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
2309                 *pci_using_dac = 0;
2310         else {
2311                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
2312                 return -EIO;
2313         }
2314
2315         return 0;
2316 }
2317
2318 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
2319 {
2320         int ring;
2321         struct qlcnic_host_tx_ring *tx_ring;
2322
2323         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2324                 tx_ring = &adapter->tx_ring[ring];
2325                 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
2326                         vfree(tx_ring->cmd_buf_arr);
2327                         tx_ring->cmd_buf_arr = NULL;
2328                 }
2329         }
2330         if (adapter->tx_ring != NULL)
2331                 kfree(adapter->tx_ring);
2332 }
2333
2334 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
2335                           struct net_device *netdev)
2336 {
2337         int ring, vector, index;
2338         struct qlcnic_host_tx_ring *tx_ring;
2339         struct qlcnic_cmd_buffer *cmd_buf_arr;
2340
2341         tx_ring = kcalloc(adapter->drv_tx_rings,
2342                           sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
2343         if (tx_ring == NULL)
2344                 return -ENOMEM;
2345
2346         adapter->tx_ring = tx_ring;
2347
2348         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2349                 tx_ring = &adapter->tx_ring[ring];
2350                 tx_ring->num_desc = adapter->num_txd;
2351                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
2352                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
2353                 if (cmd_buf_arr == NULL) {
2354                         qlcnic_free_tx_rings(adapter);
2355                         return -ENOMEM;
2356                 }
2357                 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
2358                 tx_ring->cmd_buf_arr = cmd_buf_arr;
2359                 spin_lock_init(&tx_ring->tx_clean_lock);
2360         }
2361
2362         if (qlcnic_83xx_check(adapter) ||
2363             (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
2364                 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2365                         tx_ring = &adapter->tx_ring[ring];
2366                         tx_ring->adapter = adapter;
2367                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
2368                                 index = adapter->drv_sds_rings + ring;
2369                                 vector = adapter->msix_entries[index].vector;
2370                                 tx_ring->irq = vector;
2371                         }
2372                 }
2373         }
2374
2375         return 0;
2376 }
2377
2378 void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
2379 {
2380         struct qlcnic_hardware_context *ahw = adapter->ahw;
2381         u32 fw_cmd = 0;
2382
2383         if (qlcnic_82xx_check(adapter))
2384                 fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
2385         else if (qlcnic_83xx_check(adapter))
2386                 fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
2387
2388         if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER)
2389                 qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
2390 }
2391
2392 /* Reset firmware API lock */
2393 static void qlcnic_reset_api_lock(struct qlcnic_adapter *adapter)
2394 {
2395         qlcnic_api_lock(adapter);
2396         qlcnic_api_unlock(adapter);
2397 }
2398
2399
2400 static int
2401 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2402 {
2403         struct net_device *netdev = NULL;
2404         struct qlcnic_adapter *adapter = NULL;
2405         struct qlcnic_hardware_context *ahw;
2406         int err, pci_using_dac = -1;
2407         char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
2408
2409         if (pdev->is_virtfn)
2410                 return -ENODEV;
2411
2412         err = pci_enable_device(pdev);
2413         if (err)
2414                 return err;
2415
2416         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2417                 err = -ENODEV;
2418                 goto err_out_disable_pdev;
2419         }
2420
2421         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
2422         if (err)
2423                 goto err_out_disable_pdev;
2424
2425         err = pci_request_regions(pdev, qlcnic_driver_name);
2426         if (err)
2427                 goto err_out_disable_pdev;
2428
2429         pci_set_master(pdev);
2430         pci_enable_pcie_error_reporting(pdev);
2431
2432         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2433         if (!ahw) {
2434                 err = -ENOMEM;
2435                 goto err_out_free_res;
2436         }
2437
2438         switch (ent->device) {
2439         case PCI_DEVICE_ID_QLOGIC_QLE824X:
2440                 ahw->hw_ops = &qlcnic_hw_ops;
2441                 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2442                 break;
2443         case PCI_DEVICE_ID_QLOGIC_QLE834X:
2444         case PCI_DEVICE_ID_QLOGIC_QLE844X:
2445                 qlcnic_83xx_register_map(ahw);
2446                 break;
2447         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2448         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2449                 qlcnic_sriov_vf_register_map(ahw);
2450                 break;
2451         default:
2452                 goto err_out_free_hw_res;
2453         }
2454
2455         err = qlcnic_setup_pci_map(pdev, ahw);
2456         if (err)
2457                 goto err_out_free_hw_res;
2458
2459         netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
2460                                    QLCNIC_MAX_TX_RINGS);
2461         if (!netdev) {
2462                 err = -ENOMEM;
2463                 goto err_out_iounmap;
2464         }
2465
2466         SET_NETDEV_DEV(netdev, &pdev->dev);
2467
2468         adapter = netdev_priv(netdev);
2469         adapter->netdev  = netdev;
2470         adapter->pdev    = pdev;
2471         adapter->ahw = ahw;
2472
2473         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2474         if (adapter->qlcnic_wq == NULL) {
2475                 err = -ENOMEM;
2476                 dev_err(&pdev->dev, "Failed to create workqueue\n");
2477                 goto err_out_free_netdev;
2478         }
2479
2480         err = qlcnic_alloc_adapter_resources(adapter);
2481         if (err)
2482                 goto err_out_free_wq;
2483
2484         adapter->dev_rst_time = jiffies;
2485         ahw->revision_id = pdev->revision;
2486         ahw->max_vnic_func = qlcnic_get_vnic_func_count(adapter);
2487         if (qlcnic_mac_learn == FDB_MAC_LEARN)
2488                 adapter->fdb_mac_learn = true;
2489         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2490                 adapter->drv_mac_learn = true;
2491
2492         rwlock_init(&adapter->ahw->crb_lock);
2493         mutex_init(&adapter->ahw->mem_lock);
2494
2495         INIT_LIST_HEAD(&adapter->mac_list);
2496
2497         qlcnic_register_dcb(adapter);
2498
2499         if (qlcnic_82xx_check(adapter)) {
2500                 qlcnic_check_vf(adapter, ent);
2501                 adapter->portnum = adapter->ahw->pci_func;
2502                 qlcnic_reset_api_lock(adapter);
2503                 err = qlcnic_start_firmware(adapter);
2504                 if (err) {
2505                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
2506                                 "\t\tIf reboot doesn't help, try flashing the card\n");
2507                         goto err_out_maintenance_mode;
2508                 }
2509
2510                 /* compute and set default and max tx/sds rings */
2511                 if (adapter->ahw->msix_supported) {
2512                         if (qlcnic_check_multi_tx_capability(adapter) == 1)
2513                                 qlcnic_set_tx_ring_count(adapter,
2514                                                          QLCNIC_SINGLE_RING);
2515                         else
2516                                 qlcnic_set_tx_ring_count(adapter,
2517                                                          QLCNIC_DEF_TX_RINGS);
2518                         qlcnic_set_sds_ring_count(adapter,
2519                                                   QLCNIC_DEF_SDS_RINGS);
2520                 } else {
2521                         qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
2522                         qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
2523                 }
2524
2525                 err = qlcnic_setup_idc_param(adapter);
2526                 if (err)
2527                         goto err_out_free_hw;
2528
2529                 adapter->flags |= QLCNIC_NEED_FLR;
2530
2531         } else if (qlcnic_83xx_check(adapter)) {
2532                 qlcnic_83xx_check_vf(adapter, ent);
2533                 adapter->portnum = adapter->ahw->pci_func;
2534                 err = qlcnic_83xx_init(adapter, pci_using_dac);
2535                 if (err) {
2536                         switch (err) {
2537                         case -ENOTRECOVERABLE:
2538                                 dev_err(&pdev->dev, "Adapter initialization failed due to a faulty hardware\n");
2539                                 dev_err(&pdev->dev, "Please replace the adapter with new one and return the faulty adapter for repair\n");
2540                                 goto err_out_free_hw;
2541                         case -ENOMEM:
2542                                 dev_err(&pdev->dev, "Adapter initialization failed. Please reboot\n");
2543                                 goto err_out_free_hw;
2544                         case -EOPNOTSUPP:
2545                                 dev_err(&pdev->dev, "Adapter initialization failed\n");
2546                                 goto err_out_free_hw;
2547                         default:
2548                                 dev_err(&pdev->dev, "Adapter initialization failed. Driver will load in maintenance mode to recover the adapter using the application\n");
2549                                 goto err_out_maintenance_mode;
2550                         }
2551                 }
2552
2553                 if (qlcnic_sriov_vf_check(adapter))
2554                         return 0;
2555         } else {
2556                 dev_err(&pdev->dev,
2557                         "%s: failed. Please Reboot\n", __func__);
2558                 goto err_out_free_hw;
2559         }
2560
2561         if (qlcnic_read_mac_addr(adapter))
2562                 dev_warn(&pdev->dev, "failed to read mac addr\n");
2563
2564         qlcnic_read_phys_port_id(adapter);
2565
2566         if (adapter->portnum == 0) {
2567                 qlcnic_get_board_name(adapter, board_name);
2568
2569                 pr_info("%s: %s Board Chip rev 0x%x\n",
2570                         module_name(THIS_MODULE),
2571                         board_name, adapter->ahw->revision_id);
2572         }
2573
2574         if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2575             !!qlcnic_use_msi)
2576                 dev_warn(&pdev->dev,
2577                          "Device does not support MSI interrupts\n");
2578
2579         if (qlcnic_82xx_check(adapter)) {
2580                 qlcnic_dcb_enable(adapter->dcb);
2581                 qlcnic_dcb_get_info(adapter->dcb);
2582                 err = qlcnic_setup_intr(adapter);
2583
2584                 if (err) {
2585                         dev_err(&pdev->dev, "Failed to setup interrupt\n");
2586                         goto err_out_disable_msi;
2587                 }
2588         }
2589
2590         err = qlcnic_get_act_pci_func(adapter);
2591         if (err)
2592                 goto err_out_disable_mbx_intr;
2593
2594         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2595         if (err)
2596                 goto err_out_disable_mbx_intr;
2597
2598         if (adapter->portnum == 0)
2599                 qlcnic_set_drv_version(adapter);
2600
2601         pci_set_drvdata(pdev, adapter);
2602
2603         if (qlcnic_82xx_check(adapter))
2604                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2605                                      FW_POLL_DELAY);
2606
2607         switch (adapter->ahw->port_type) {
2608         case QLCNIC_GBE:
2609                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2610                                 adapter->netdev->name);
2611                 break;
2612         case QLCNIC_XGBE:
2613                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2614                                 adapter->netdev->name);
2615                 break;
2616         }
2617
2618         if (adapter->drv_mac_learn)
2619                 qlcnic_alloc_lb_filters_mem(adapter);
2620
2621         qlcnic_add_sysfs(adapter);
2622         qlcnic_register_hwmon_dev(adapter);
2623         return 0;
2624
2625 err_out_disable_mbx_intr:
2626         if (qlcnic_83xx_check(adapter))
2627                 qlcnic_83xx_free_mbx_intr(adapter);
2628
2629 err_out_disable_msi:
2630         qlcnic_teardown_intr(adapter);
2631         qlcnic_cancel_idc_work(adapter);
2632         qlcnic_clr_all_drv_state(adapter, 0);
2633
2634 err_out_free_hw:
2635         qlcnic_free_adapter_resources(adapter);
2636
2637 err_out_free_wq:
2638         destroy_workqueue(adapter->qlcnic_wq);
2639
2640 err_out_free_netdev:
2641         free_netdev(netdev);
2642
2643 err_out_iounmap:
2644         qlcnic_cleanup_pci_map(ahw);
2645
2646 err_out_free_hw_res:
2647         kfree(ahw);
2648
2649 err_out_free_res:
2650         pci_release_regions(pdev);
2651
2652 err_out_disable_pdev:
2653         pci_disable_device(pdev);
2654         return err;
2655
2656 err_out_maintenance_mode:
2657         set_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state);
2658         netdev->netdev_ops = &qlcnic_netdev_failed_ops;
2659         SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_failed_ops);
2660         ahw->port_type = QLCNIC_XGBE;
2661
2662         if (qlcnic_83xx_check(adapter))
2663                 adapter->tgt_status_reg = NULL;
2664         else
2665                 ahw->board_type = QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS;
2666
2667         err = register_netdev(netdev);
2668
2669         if (err) {
2670                 dev_err(&pdev->dev, "Failed to register net device\n");
2671                 qlcnic_clr_all_drv_state(adapter, 0);
2672                 goto err_out_free_hw;
2673         }
2674
2675         pci_set_drvdata(pdev, adapter);
2676         qlcnic_add_sysfs(adapter);
2677
2678         return 0;
2679 }
2680
2681 static void qlcnic_remove(struct pci_dev *pdev)
2682 {
2683         struct qlcnic_adapter *adapter;
2684         struct net_device *netdev;
2685         struct qlcnic_hardware_context *ahw;
2686
2687         adapter = pci_get_drvdata(pdev);
2688         if (adapter == NULL)
2689                 return;
2690
2691         netdev = adapter->netdev;
2692         qlcnic_sriov_pf_disable(adapter);
2693
2694         qlcnic_cancel_idc_work(adapter);
2695         ahw = adapter->ahw;
2696
2697         unregister_netdev(netdev);
2698         qlcnic_sriov_cleanup(adapter);
2699
2700         if (qlcnic_83xx_check(adapter)) {
2701                 qlcnic_83xx_initialize_nic(adapter, 0);
2702                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2703                 qlcnic_83xx_free_mbx_intr(adapter);
2704                 qlcnic_83xx_detach_mailbox_work(adapter);
2705                 qlcnic_83xx_free_mailbox(ahw->mailbox);
2706                 kfree(ahw->fw_info);
2707         }
2708
2709         qlcnic_dcb_free(adapter->dcb);
2710
2711         qlcnic_detach(adapter);
2712
2713         if (adapter->npars != NULL)
2714                 kfree(adapter->npars);
2715         if (adapter->eswitch != NULL)
2716                 kfree(adapter->eswitch);
2717
2718         if (qlcnic_82xx_check(adapter))
2719                 qlcnic_clr_all_drv_state(adapter, 0);
2720
2721         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2722
2723         qlcnic_free_lb_filters_mem(adapter);
2724
2725         qlcnic_teardown_intr(adapter);
2726
2727         qlcnic_remove_sysfs(adapter);
2728
2729         qlcnic_unregister_hwmon_dev(adapter);
2730
2731         qlcnic_cleanup_pci_map(adapter->ahw);
2732
2733         qlcnic_release_firmware(adapter);
2734
2735         pci_disable_pcie_error_reporting(pdev);
2736         pci_release_regions(pdev);
2737         pci_disable_device(pdev);
2738
2739         if (adapter->qlcnic_wq) {
2740                 destroy_workqueue(adapter->qlcnic_wq);
2741                 adapter->qlcnic_wq = NULL;
2742         }
2743
2744         qlcnic_free_adapter_resources(adapter);
2745         kfree(ahw);
2746         free_netdev(netdev);
2747 }
2748
2749 static void qlcnic_shutdown(struct pci_dev *pdev)
2750 {
2751         if (__qlcnic_shutdown(pdev))
2752                 return;
2753
2754         pci_disable_device(pdev);
2755 }
2756
2757 #ifdef CONFIG_PM
2758 static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2759 {
2760         int retval;
2761
2762         retval = __qlcnic_shutdown(pdev);
2763         if (retval)
2764                 return retval;
2765
2766         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2767         return 0;
2768 }
2769
2770 static int qlcnic_resume(struct pci_dev *pdev)
2771 {
2772         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2773         int err;
2774
2775         err = pci_enable_device(pdev);
2776         if (err)
2777                 return err;
2778
2779         pci_set_power_state(pdev, PCI_D0);
2780         pci_set_master(pdev);
2781         pci_restore_state(pdev);
2782
2783         return  __qlcnic_resume(adapter);
2784 }
2785 #endif
2786
2787 static int qlcnic_open(struct net_device *netdev)
2788 {
2789         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2790         int err;
2791
2792         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
2793                 netdev_err(netdev, "%s: Device is in non-operational state\n",
2794                            __func__);
2795
2796                 return -EIO;
2797         }
2798
2799         netif_carrier_off(netdev);
2800
2801         err = qlcnic_attach(adapter);
2802         if (err)
2803                 return err;
2804
2805         err = __qlcnic_up(adapter, netdev);
2806         if (err)
2807                 qlcnic_detach(adapter);
2808
2809         return err;
2810 }
2811
2812 /*
2813  * qlcnic_close - Disables a network interface entry point
2814  */
2815 static int qlcnic_close(struct net_device *netdev)
2816 {
2817         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2818
2819         __qlcnic_down(adapter, netdev);
2820
2821         return 0;
2822 }
2823
2824 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2825 {
2826         void *head;
2827         int i;
2828         struct net_device *netdev = adapter->netdev;
2829         u32 filter_size = 0;
2830         u16 act_pci_func = 0;
2831
2832         if (adapter->fhash.fmax && adapter->fhash.fhead)
2833                 return;
2834
2835         act_pci_func = adapter->ahw->total_nic_func;
2836         spin_lock_init(&adapter->mac_learn_lock);
2837         spin_lock_init(&adapter->rx_mac_learn_lock);
2838
2839         if (qlcnic_82xx_check(adapter)) {
2840                 filter_size = QLCNIC_LB_MAX_FILTERS;
2841                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2842         } else {
2843                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2844                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2845         }
2846
2847         head = kcalloc(adapter->fhash.fbucket_size,
2848                        sizeof(struct hlist_head), GFP_ATOMIC);
2849
2850         if (!head)
2851                 return;
2852
2853         adapter->fhash.fmax = (filter_size / act_pci_func);
2854         adapter->fhash.fhead = head;
2855
2856         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2857                     act_pci_func, adapter->fhash.fmax);
2858
2859         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2860                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2861
2862         adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2863
2864         head = kcalloc(adapter->rx_fhash.fbucket_size,
2865                        sizeof(struct hlist_head), GFP_ATOMIC);
2866
2867         if (!head)
2868                 return;
2869
2870         adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2871         adapter->rx_fhash.fhead = head;
2872
2873         for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2874                 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2875 }
2876
2877 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2878 {
2879         if (adapter->fhash.fmax && adapter->fhash.fhead)
2880                 kfree(adapter->fhash.fhead);
2881
2882         adapter->fhash.fhead = NULL;
2883         adapter->fhash.fmax = 0;
2884
2885         if (adapter->rx_fhash.fmax && adapter->rx_fhash.fhead)
2886                 kfree(adapter->rx_fhash.fhead);
2887
2888         adapter->rx_fhash.fmax = 0;
2889         adapter->rx_fhash.fhead = NULL;
2890 }
2891
2892 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2893 {
2894         struct net_device *netdev = adapter->netdev;
2895         u32 temp_state, temp_val, temp = 0;
2896         int rv = 0;
2897
2898         if (qlcnic_83xx_check(adapter))
2899                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2900
2901         if (qlcnic_82xx_check(adapter))
2902                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2903
2904         temp_state = qlcnic_get_temp_state(temp);
2905         temp_val = qlcnic_get_temp_val(temp);
2906
2907         if (temp_state == QLCNIC_TEMP_PANIC) {
2908                 dev_err(&netdev->dev,
2909                        "Device temperature %d degrees C exceeds"
2910                        " maximum allowed. Hardware has been shut down.\n",
2911                        temp_val);
2912                 rv = 1;
2913         } else if (temp_state == QLCNIC_TEMP_WARN) {
2914                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2915                         dev_err(&netdev->dev,
2916                                "Device temperature %d degrees C "
2917                                "exceeds operating range."
2918                                " Immediate action needed.\n",
2919                                temp_val);
2920                 }
2921         } else {
2922                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2923                         dev_info(&netdev->dev,
2924                                "Device temperature is now %d degrees C"
2925                                " in normal range.\n", temp_val);
2926                 }
2927         }
2928         adapter->ahw->temp = temp_state;
2929         return rv;
2930 }
2931
2932 static inline void dump_tx_ring_desc(struct qlcnic_host_tx_ring *tx_ring)
2933 {
2934         int i;
2935         struct cmd_desc_type0 *tx_desc_info;
2936
2937         for (i = 0; i < tx_ring->num_desc; i++) {
2938                 tx_desc_info = &tx_ring->desc_head[i];
2939                 pr_info("TX Desc: %d\n", i);
2940                 print_hex_dump(KERN_INFO, "TX: ", DUMP_PREFIX_OFFSET, 16, 1,
2941                                &tx_ring->desc_head[i],
2942                                sizeof(struct cmd_desc_type0), true);
2943         }
2944 }
2945
2946 static void qlcnic_dump_tx_rings(struct qlcnic_adapter *adapter)
2947 {
2948         struct net_device *netdev = adapter->netdev;
2949         struct qlcnic_host_tx_ring *tx_ring;
2950         int ring;
2951
2952         if (!netdev || !netif_running(netdev))
2953                 return;
2954
2955         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2956                 tx_ring = &adapter->tx_ring[ring];
2957                 netdev_info(netdev, "Tx ring=%d Context Id=0x%x\n",
2958                             ring, tx_ring->ctx_id);
2959                 netdev_info(netdev,
2960                             "xmit_finished=%llu, xmit_called=%llu, xmit_on=%llu, xmit_off=%llu\n",
2961                             tx_ring->tx_stats.xmit_finished,
2962                             tx_ring->tx_stats.xmit_called,
2963                             tx_ring->tx_stats.xmit_on,
2964                             tx_ring->tx_stats.xmit_off);
2965                 netdev_info(netdev,
2966                             "crb_intr_mask=%d, hw_producer=%d, sw_producer=%d sw_consumer=%d, hw_consumer=%d\n",
2967                             readl(tx_ring->crb_intr_mask),
2968                             readl(tx_ring->crb_cmd_producer),
2969                             tx_ring->producer, tx_ring->sw_consumer,
2970                             le32_to_cpu(*(tx_ring->hw_consumer)));
2971
2972                 netdev_info(netdev, "Total desc=%d, Available desc=%d\n",
2973                             tx_ring->num_desc, qlcnic_tx_avail(tx_ring));
2974
2975                 if (netif_msg_tx_done(adapter->ahw))
2976                         dump_tx_ring_desc(tx_ring);
2977         }
2978 }
2979
2980 static void qlcnic_tx_timeout(struct net_device *netdev)
2981 {
2982         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2983
2984         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2985                 return;
2986
2987         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS) {
2988                 netdev_info(netdev, "Tx timeout, reset the adapter.\n");
2989                 if (qlcnic_82xx_check(adapter))
2990                         adapter->need_fw_reset = 1;
2991                 else if (qlcnic_83xx_check(adapter))
2992                         qlcnic_83xx_idc_request_reset(adapter,
2993                                                       QLCNIC_FORCE_FW_DUMP_KEY);
2994         } else {
2995                 netdev_info(netdev, "Tx timeout, reset adapter context.\n");
2996                 qlcnic_dump_tx_rings(adapter);
2997                 adapter->ahw->reset_context = 1;
2998         }
2999 }
3000
3001 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
3002 {
3003         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3004         struct net_device_stats *stats = &netdev->stats;
3005
3006         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
3007                 qlcnic_update_stats(adapter);
3008
3009         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
3010         stats->tx_packets = adapter->stats.xmitfinished;
3011         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
3012         stats->tx_bytes = adapter->stats.txbytes;
3013         stats->rx_dropped = adapter->stats.rxdropped;
3014         stats->tx_dropped = adapter->stats.txdropped;
3015
3016         return stats;
3017 }
3018
3019 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
3020 {
3021         u32 status;
3022
3023         status = readl(adapter->isr_int_vec);
3024
3025         if (!(status & adapter->ahw->int_vec_bit))
3026                 return IRQ_NONE;
3027
3028         /* check interrupt state machine, to be sure */
3029         status = readl(adapter->crb_int_state_reg);
3030         if (!ISR_LEGACY_INT_TRIGGERED(status))
3031                 return IRQ_NONE;
3032
3033         writel(0xffffffff, adapter->tgt_status_reg);
3034         /* read twice to ensure write is flushed */
3035         readl(adapter->isr_int_vec);
3036         readl(adapter->isr_int_vec);
3037
3038         return IRQ_HANDLED;
3039 }
3040
3041 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
3042 {
3043         struct qlcnic_host_sds_ring *sds_ring = data;
3044         struct qlcnic_adapter *adapter = sds_ring->adapter;
3045
3046         if (adapter->flags & QLCNIC_MSIX_ENABLED)
3047                 goto done;
3048         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
3049                 writel(0xffffffff, adapter->tgt_status_reg);
3050                 goto done;
3051         }
3052
3053         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3054                 return IRQ_NONE;
3055
3056 done:
3057         adapter->ahw->diag_cnt++;
3058         qlcnic_enable_sds_intr(adapter, sds_ring);
3059         return IRQ_HANDLED;
3060 }
3061
3062 static irqreturn_t qlcnic_intr(int irq, void *data)
3063 {
3064         struct qlcnic_host_sds_ring *sds_ring = data;
3065         struct qlcnic_adapter *adapter = sds_ring->adapter;
3066
3067         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3068                 return IRQ_NONE;
3069
3070         napi_schedule(&sds_ring->napi);
3071
3072         return IRQ_HANDLED;
3073 }
3074
3075 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
3076 {
3077         struct qlcnic_host_sds_ring *sds_ring = data;
3078         struct qlcnic_adapter *adapter = sds_ring->adapter;
3079
3080         /* clear interrupt */
3081         writel(0xffffffff, adapter->tgt_status_reg);
3082
3083         napi_schedule(&sds_ring->napi);
3084         return IRQ_HANDLED;
3085 }
3086
3087 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
3088 {
3089         struct qlcnic_host_sds_ring *sds_ring = data;
3090
3091         napi_schedule(&sds_ring->napi);
3092         return IRQ_HANDLED;
3093 }
3094
3095 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
3096 {
3097         struct qlcnic_host_tx_ring *tx_ring = data;
3098
3099         napi_schedule(&tx_ring->napi);
3100         return IRQ_HANDLED;
3101 }
3102
3103 #ifdef CONFIG_NET_POLL_CONTROLLER
3104 static void qlcnic_poll_controller(struct net_device *netdev)
3105 {
3106         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3107         struct qlcnic_host_sds_ring *sds_ring;
3108         struct qlcnic_recv_context *recv_ctx;
3109         struct qlcnic_host_tx_ring *tx_ring;
3110         int ring;
3111
3112         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3113                 return;
3114
3115         recv_ctx = adapter->recv_ctx;
3116
3117         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3118                 sds_ring = &recv_ctx->sds_rings[ring];
3119                 qlcnic_disable_sds_intr(adapter, sds_ring);
3120                 napi_schedule(&sds_ring->napi);
3121         }
3122
3123         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
3124                 /* Only Multi-Tx queue capable devices need to
3125                  * schedule NAPI for TX rings
3126                  */
3127                 if ((qlcnic_83xx_check(adapter) &&
3128                      (adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
3129                     (qlcnic_82xx_check(adapter) &&
3130                      !qlcnic_check_multi_tx(adapter)))
3131                         return;
3132
3133                 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3134                         tx_ring = &adapter->tx_ring[ring];
3135                         qlcnic_disable_tx_intr(adapter, tx_ring);
3136                         napi_schedule(&tx_ring->napi);
3137                 }
3138         }
3139 }
3140 #endif
3141
3142 static void
3143 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
3144 {
3145         u32 val;
3146
3147         val = adapter->portnum & 0xf;
3148         val |= encoding << 7;
3149         val |= (jiffies - adapter->dev_rst_time) << 8;
3150
3151         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
3152         adapter->dev_rst_time = jiffies;
3153 }
3154
3155 static int
3156 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
3157 {
3158         u32  val;
3159
3160         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
3161                         state != QLCNIC_DEV_NEED_QUISCENT);
3162
3163         if (qlcnic_api_lock(adapter))
3164                 return -EIO;
3165
3166         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3167
3168         if (state == QLCNIC_DEV_NEED_RESET)
3169                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3170         else if (state == QLCNIC_DEV_NEED_QUISCENT)
3171                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
3172
3173         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3174
3175         qlcnic_api_unlock(adapter);
3176
3177         return 0;
3178 }
3179
3180 static int
3181 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
3182 {
3183         u32  val;
3184
3185         if (qlcnic_api_lock(adapter))
3186                 return -EBUSY;
3187
3188         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3189         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3190         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3191
3192         qlcnic_api_unlock(adapter);
3193
3194         return 0;
3195 }
3196
3197 void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
3198 {
3199         u32  val;
3200
3201         if (qlcnic_api_lock(adapter))
3202                 goto err;
3203
3204         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3205         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
3206         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3207
3208         if (failed) {
3209                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3210                                     QLCNIC_DEV_FAILED);
3211                 dev_info(&adapter->pdev->dev,
3212                                 "Device state set to Failed. Please Reboot\n");
3213         } else if (!(val & 0x11111111))
3214                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3215                                     QLCNIC_DEV_COLD);
3216
3217         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3218         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3219         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3220
3221         qlcnic_api_unlock(adapter);
3222 err:
3223         adapter->fw_fail_cnt = 0;
3224         adapter->flags &= ~QLCNIC_FW_HANG;
3225         clear_bit(__QLCNIC_START_FW, &adapter->state);
3226         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3227 }
3228
3229 /* Grab api lock, before checking state */
3230 static int
3231 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
3232 {
3233         int act, state, active_mask;
3234         struct qlcnic_hardware_context *ahw = adapter->ahw;
3235
3236         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3237         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3238
3239         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
3240                 active_mask = (~(1 << (ahw->pci_func * 4)));
3241                 act = act & active_mask;
3242         }
3243
3244         if (((state & 0x11111111) == (act & 0x11111111)) ||
3245                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
3246                 return 0;
3247         else
3248                 return 1;
3249 }
3250
3251 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
3252 {
3253         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
3254
3255         if (val != QLCNIC_DRV_IDC_VER) {
3256                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
3257                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
3258         }
3259
3260         return 0;
3261 }
3262
3263 static int
3264 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
3265 {
3266         u32 val, prev_state;
3267         u8 dev_init_timeo = adapter->dev_init_timeo;
3268         u8 portnum = adapter->portnum;
3269         u8 ret;
3270
3271         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
3272                 return 1;
3273
3274         if (qlcnic_api_lock(adapter))
3275                 return -1;
3276
3277         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3278         if (!(val & (1 << (portnum * 4)))) {
3279                 QLC_DEV_SET_REF_CNT(val, portnum);
3280                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3281         }
3282
3283         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3284         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
3285
3286         switch (prev_state) {
3287         case QLCNIC_DEV_COLD:
3288                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3289                                     QLCNIC_DEV_INITIALIZING);
3290                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
3291                                     QLCNIC_DRV_IDC_VER);
3292                 qlcnic_idc_debug_info(adapter, 0);
3293                 qlcnic_api_unlock(adapter);
3294                 return 1;
3295
3296         case QLCNIC_DEV_READY:
3297                 ret = qlcnic_check_idc_ver(adapter);
3298                 qlcnic_api_unlock(adapter);
3299                 return ret;
3300
3301         case QLCNIC_DEV_NEED_RESET:
3302                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3303                 QLC_DEV_SET_RST_RDY(val, portnum);
3304                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3305                 break;
3306
3307         case QLCNIC_DEV_NEED_QUISCENT:
3308                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3309                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
3310                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3311                 break;
3312
3313         case QLCNIC_DEV_FAILED:
3314                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
3315                 qlcnic_api_unlock(adapter);
3316                 return -1;
3317
3318         case QLCNIC_DEV_INITIALIZING:
3319         case QLCNIC_DEV_QUISCENT:
3320                 break;
3321         }
3322
3323         qlcnic_api_unlock(adapter);
3324
3325         do {
3326                 msleep(1000);
3327                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3328
3329                 if (prev_state == QLCNIC_DEV_QUISCENT)
3330                         continue;
3331         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
3332
3333         if (!dev_init_timeo) {
3334                 dev_err(&adapter->pdev->dev,
3335                         "Waiting for device to initialize timeout\n");
3336                 return -1;
3337         }
3338
3339         if (qlcnic_api_lock(adapter))
3340                 return -1;
3341
3342         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3343         QLC_DEV_CLR_RST_QSCNT(val, portnum);
3344         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3345
3346         ret = qlcnic_check_idc_ver(adapter);
3347         qlcnic_api_unlock(adapter);
3348
3349         return ret;
3350 }
3351
3352 static void
3353 qlcnic_fwinit_work(struct work_struct *work)
3354 {
3355         struct qlcnic_adapter *adapter = container_of(work,
3356                         struct qlcnic_adapter, fw_work.work);
3357         u32 dev_state = 0xf;
3358         u32 val;
3359
3360         if (qlcnic_api_lock(adapter))
3361                 goto err_ret;
3362
3363         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3364         if (dev_state == QLCNIC_DEV_QUISCENT ||
3365             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3366                 qlcnic_api_unlock(adapter);
3367                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
3368                                                 FW_POLL_DELAY * 2);
3369                 return;
3370         }
3371
3372         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
3373                 qlcnic_api_unlock(adapter);
3374                 goto wait_npar;
3375         }
3376
3377         if (dev_state == QLCNIC_DEV_INITIALIZING ||
3378             dev_state == QLCNIC_DEV_READY) {
3379                 dev_info(&adapter->pdev->dev, "Detected state change from "
3380                                 "DEV_NEED_RESET, skipping ack check\n");
3381                 goto skip_ack_check;
3382         }
3383
3384         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
3385                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
3386                                         adapter->reset_ack_timeo);
3387                 goto skip_ack_check;
3388         }
3389
3390         if (!qlcnic_check_drv_state(adapter)) {
3391 skip_ack_check:
3392                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3393
3394                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
3395                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3396                                             QLCNIC_DEV_INITIALIZING);
3397                         set_bit(__QLCNIC_START_FW, &adapter->state);
3398                         QLCDB(adapter, DRV, "Restarting fw\n");
3399                         qlcnic_idc_debug_info(adapter, 0);
3400                         val = QLC_SHARED_REG_RD32(adapter,
3401                                                   QLCNIC_CRB_DRV_STATE);
3402                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3403                         QLC_SHARED_REG_WR32(adapter,
3404                                             QLCNIC_CRB_DRV_STATE, val);
3405                 }
3406
3407                 qlcnic_api_unlock(adapter);
3408
3409                 rtnl_lock();
3410                 if (qlcnic_check_fw_dump_state(adapter) &&
3411                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3412                         QLCDB(adapter, DRV, "Take FW dump\n");
3413                         qlcnic_dump_fw(adapter);
3414                         adapter->flags |= QLCNIC_FW_HANG;
3415                 }
3416                 rtnl_unlock();
3417
3418                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
3419                 if (!adapter->nic_ops->start_firmware(adapter)) {
3420                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3421                         adapter->fw_wait_cnt = 0;
3422                         return;
3423                 }
3424                 goto err_ret;
3425         }
3426
3427         qlcnic_api_unlock(adapter);
3428
3429 wait_npar:
3430         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3431         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
3432
3433         switch (dev_state) {
3434         case QLCNIC_DEV_READY:
3435                 if (!qlcnic_start_firmware(adapter)) {
3436                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3437                         adapter->fw_wait_cnt = 0;
3438                         return;
3439                 }
3440         case QLCNIC_DEV_FAILED:
3441                 break;
3442         default:
3443                 qlcnic_schedule_work(adapter,
3444                         qlcnic_fwinit_work, FW_POLL_DELAY);
3445                 return;
3446         }
3447
3448 err_ret:
3449         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
3450                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
3451         netif_device_attach(adapter->netdev);
3452         qlcnic_clr_all_drv_state(adapter, 0);
3453 }
3454
3455 static void
3456 qlcnic_detach_work(struct work_struct *work)
3457 {
3458         struct qlcnic_adapter *adapter = container_of(work,
3459                         struct qlcnic_adapter, fw_work.work);
3460         struct net_device *netdev = adapter->netdev;
3461         u32 status;
3462
3463         netif_device_detach(netdev);
3464
3465         /* Dont grab rtnl lock during Quiscent mode */
3466         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3467                 if (netif_running(netdev))
3468                         __qlcnic_down(adapter, netdev);
3469         } else
3470                 qlcnic_down(adapter, netdev);
3471
3472         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3473
3474         if (status & QLCNIC_RCODE_FATAL_ERROR) {
3475                 dev_err(&adapter->pdev->dev,
3476                         "Detaching the device: peg halt status1=0x%x\n",
3477                                         status);
3478
3479                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
3480                         dev_err(&adapter->pdev->dev,
3481                         "On board active cooling fan failed. "
3482                                 "Device has been halted.\n");
3483                         dev_err(&adapter->pdev->dev,
3484                                 "Replace the adapter.\n");
3485                 }
3486
3487                 goto err_ret;
3488         }
3489
3490         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
3491                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
3492                         adapter->ahw->temp);
3493                 goto err_ret;
3494         }
3495
3496         /* Dont ack if this instance is the reset owner */
3497         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3498                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
3499                         dev_err(&adapter->pdev->dev,
3500                                 "Failed to set driver state,"
3501                                         "detaching the device.\n");
3502                         goto err_ret;
3503                 }
3504         }
3505
3506         adapter->fw_wait_cnt = 0;
3507
3508         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3509
3510         return;
3511
3512 err_ret:
3513         netif_device_attach(netdev);
3514         qlcnic_clr_all_drv_state(adapter, 1);
3515 }
3516
3517 /*Transit NPAR state to NON Operational */
3518 static void
3519 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3520 {
3521         u32 state;
3522
3523         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3524         if (state == QLCNIC_DEV_NPAR_NON_OPER)
3525                 return;
3526
3527         if (qlcnic_api_lock(adapter))
3528                 return;
3529         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3530                             QLCNIC_DEV_NPAR_NON_OPER);
3531         qlcnic_api_unlock(adapter);
3532 }
3533
3534 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter,
3535                                           u32 key)
3536 {
3537         u32 state, xg_val = 0, gb_val = 0;
3538
3539         qlcnic_xg_set_xg0_mask(xg_val);
3540         qlcnic_xg_set_xg1_mask(xg_val);
3541         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3542         qlcnic_gb_set_gb0_mask(gb_val);
3543         qlcnic_gb_set_gb1_mask(gb_val);
3544         qlcnic_gb_set_gb2_mask(gb_val);
3545         qlcnic_gb_set_gb3_mask(gb_val);
3546         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3547         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3548                                 " on all ports\n");
3549         adapter->need_fw_reset = 1;
3550
3551         if (qlcnic_api_lock(adapter))
3552                 return;
3553
3554         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3555
3556         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
3557                 netdev_err(adapter->netdev, "%s: Device is in non-operational state\n",
3558                            __func__);
3559                 qlcnic_api_unlock(adapter);
3560
3561                 return;
3562         }
3563
3564         if (state == QLCNIC_DEV_READY) {
3565                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3566                                     QLCNIC_DEV_NEED_RESET);
3567                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3568                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3569                 qlcnic_idc_debug_info(adapter, 0);
3570         }
3571
3572         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3573                             QLCNIC_DEV_NPAR_NON_OPER);
3574         qlcnic_api_unlock(adapter);
3575 }
3576
3577 /* Transit to NPAR READY state from NPAR NOT READY state */
3578 static void
3579 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3580 {
3581         if (qlcnic_api_lock(adapter))
3582                 return;
3583
3584         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3585                             QLCNIC_DEV_NPAR_OPER);
3586         QLCDB(adapter, DRV, "NPAR operational state set\n");
3587
3588         qlcnic_api_unlock(adapter);
3589 }
3590
3591 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3592                           work_func_t func, int delay)
3593 {
3594         if (test_bit(__QLCNIC_AER, &adapter->state))
3595                 return;
3596
3597         INIT_DELAYED_WORK(&adapter->fw_work, func);
3598         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3599                            round_jiffies_relative(delay));
3600 }
3601
3602 static void
3603 qlcnic_attach_work(struct work_struct *work)
3604 {
3605         struct qlcnic_adapter *adapter = container_of(work,
3606                                 struct qlcnic_adapter, fw_work.work);
3607         struct net_device *netdev = adapter->netdev;
3608         u32 npar_state;
3609
3610         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3611                 npar_state = QLC_SHARED_REG_RD32(adapter,
3612                                                  QLCNIC_CRB_DEV_NPAR_STATE);
3613                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3614                         qlcnic_clr_all_drv_state(adapter, 0);
3615                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3616                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
3617                                                         FW_POLL_DELAY);
3618                 else
3619                         goto attach;
3620                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3621                 return;
3622         }
3623 attach:
3624         qlcnic_dcb_get_info(adapter->dcb);
3625
3626         if (netif_running(netdev)) {
3627                 if (qlcnic_up(adapter, netdev))
3628                         goto done;
3629
3630                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3631         }
3632
3633 done:
3634         netif_device_attach(netdev);
3635         adapter->fw_fail_cnt = 0;
3636         adapter->flags &= ~QLCNIC_FW_HANG;
3637         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3638         if (adapter->portnum == 0)
3639                 qlcnic_set_drv_version(adapter);
3640
3641         if (!qlcnic_clr_drv_state(adapter))
3642                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3643                                                         FW_POLL_DELAY);
3644 }
3645
3646 static int
3647 qlcnic_check_health(struct qlcnic_adapter *adapter)
3648 {
3649         struct qlcnic_hardware_context *ahw = adapter->ahw;
3650         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
3651         u32 state = 0, heartbeat;
3652         u32 peg_status;
3653         int err = 0;
3654
3655         if (qlcnic_check_temp(adapter))
3656                 goto detach;
3657
3658         if (adapter->need_fw_reset)
3659                 qlcnic_dev_request_reset(adapter, 0);
3660
3661         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3662         if (state == QLCNIC_DEV_NEED_RESET) {
3663                 qlcnic_set_npar_non_operational(adapter);
3664                 adapter->need_fw_reset = 1;
3665         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3666                 goto detach;
3667
3668         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3669         if (heartbeat != adapter->heartbeat) {
3670                 adapter->heartbeat = heartbeat;
3671                 adapter->fw_fail_cnt = 0;
3672                 if (adapter->need_fw_reset)
3673                         goto detach;
3674
3675                 if (ahw->reset_context && qlcnic_auto_fw_reset)
3676                         qlcnic_reset_hw_context(adapter);
3677
3678                 return 0;
3679         }
3680
3681         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3682                 return 0;
3683
3684         adapter->flags |= QLCNIC_FW_HANG;
3685
3686         qlcnic_dev_request_reset(adapter, 0);
3687
3688         if (qlcnic_auto_fw_reset)
3689                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3690
3691         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3692         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3693         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3694                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3695                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3696                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3697                         "PEG_NET_4_PC: 0x%x\n",
3698                         peg_status,
3699                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3700                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3701                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3702                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3703                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3704                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3705         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3706                 dev_err(&adapter->pdev->dev,
3707                         "Firmware aborted with error code 0x00006700. "
3708                                 "Device is being reset.\n");
3709 detach:
3710         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3711                 QLCNIC_DEV_NEED_RESET;
3712
3713         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3714                                                       &adapter->state)) {
3715
3716                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3717                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3718         } else if (!qlcnic_auto_fw_reset && fw_dump->enable &&
3719                    adapter->flags & QLCNIC_FW_RESET_OWNER) {
3720                 qlcnic_dump_fw(adapter);
3721         }
3722
3723         return 1;
3724 }
3725
3726 void qlcnic_fw_poll_work(struct work_struct *work)
3727 {
3728         struct qlcnic_adapter *adapter = container_of(work,
3729                                 struct qlcnic_adapter, fw_work.work);
3730
3731         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3732                 goto reschedule;
3733
3734
3735         if (qlcnic_check_health(adapter))
3736                 return;
3737
3738         if (adapter->fhash.fnum)
3739                 qlcnic_prune_lb_filters(adapter);
3740
3741 reschedule:
3742         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3743 }
3744
3745 static int qlcnic_is_first_func(struct pci_dev *pdev)
3746 {
3747         struct pci_dev *oth_pdev;
3748         int val = pdev->devfn;
3749
3750         while (val-- > 0) {
3751                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3752                         (pdev->bus), pdev->bus->number,
3753                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3754                 if (!oth_pdev)
3755                         continue;
3756
3757                 if (oth_pdev->current_state != PCI_D3cold) {
3758                         pci_dev_put(oth_pdev);
3759                         return 0;
3760                 }
3761                 pci_dev_put(oth_pdev);
3762         }
3763         return 1;
3764 }
3765
3766 static int qlcnic_attach_func(struct pci_dev *pdev)
3767 {
3768         int err, first_func;
3769         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3770         struct net_device *netdev = adapter->netdev;
3771
3772         pdev->error_state = pci_channel_io_normal;
3773
3774         err = pci_enable_device(pdev);
3775         if (err)
3776                 return err;
3777
3778         pci_set_master(pdev);
3779         pci_restore_state(pdev);
3780
3781         first_func = qlcnic_is_first_func(pdev);
3782
3783         if (qlcnic_api_lock(adapter))
3784                 return -EINVAL;
3785
3786         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3787                 adapter->need_fw_reset = 1;
3788                 set_bit(__QLCNIC_START_FW, &adapter->state);
3789                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3790                                     QLCNIC_DEV_INITIALIZING);
3791                 QLCDB(adapter, DRV, "Restarting fw\n");
3792         }
3793         qlcnic_api_unlock(adapter);
3794
3795         err = qlcnic_start_firmware(adapter);
3796         if (err)
3797                 return err;
3798
3799         qlcnic_clr_drv_state(adapter);
3800         kfree(adapter->msix_entries);
3801         adapter->msix_entries = NULL;
3802         err = qlcnic_setup_intr(adapter);
3803
3804         if (err) {
3805                 kfree(adapter->msix_entries);
3806                 netdev_err(netdev, "failed to setup interrupt\n");
3807                 return err;
3808         }
3809
3810         if (netif_running(netdev)) {
3811                 err = qlcnic_attach(adapter);
3812                 if (err) {
3813                         qlcnic_clr_all_drv_state(adapter, 1);
3814                         clear_bit(__QLCNIC_AER, &adapter->state);
3815                         netif_device_attach(netdev);
3816                         return err;
3817                 }
3818
3819                 err = qlcnic_up(adapter, netdev);
3820                 if (err)
3821                         goto done;
3822
3823                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3824         }
3825  done:
3826         netif_device_attach(netdev);
3827         return err;
3828 }
3829
3830 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
3831                                                       pci_channel_state_t state)
3832 {
3833         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3834         struct net_device *netdev = adapter->netdev;
3835
3836         if (state == pci_channel_io_perm_failure)
3837                 return PCI_ERS_RESULT_DISCONNECT;
3838
3839         if (state == pci_channel_io_normal)
3840                 return PCI_ERS_RESULT_RECOVERED;
3841
3842         set_bit(__QLCNIC_AER, &adapter->state);
3843         netif_device_detach(netdev);
3844
3845         cancel_delayed_work_sync(&adapter->fw_work);
3846
3847         if (netif_running(netdev))
3848                 qlcnic_down(adapter, netdev);
3849
3850         qlcnic_detach(adapter);
3851         qlcnic_teardown_intr(adapter);
3852
3853         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3854
3855         pci_save_state(pdev);
3856         pci_disable_device(pdev);
3857
3858         return PCI_ERS_RESULT_NEED_RESET;
3859 }
3860
3861 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
3862 {
3863         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3864                                 PCI_ERS_RESULT_RECOVERED;
3865 }
3866
3867 static void qlcnic_82xx_io_resume(struct pci_dev *pdev)
3868 {
3869         u32 state;
3870         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3871
3872         pci_cleanup_aer_uncorrect_error_status(pdev);
3873         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3874         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3875                                                             &adapter->state))
3876                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3877                                      FW_POLL_DELAY);
3878 }
3879
3880 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3881                                                  pci_channel_state_t state)
3882 {
3883         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3884         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3885
3886         if (hw_ops->io_error_detected) {
3887                 return hw_ops->io_error_detected(pdev, state);
3888         } else {
3889                 dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
3890                 return PCI_ERS_RESULT_DISCONNECT;
3891         }
3892 }
3893
3894 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3895 {
3896         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3897         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3898
3899         if (hw_ops->io_slot_reset) {
3900                 return hw_ops->io_slot_reset(pdev);
3901         } else {
3902                 dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
3903                 return PCI_ERS_RESULT_DISCONNECT;
3904         }
3905 }
3906
3907 static void qlcnic_io_resume(struct pci_dev *pdev)
3908 {
3909         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3910         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3911
3912         if (hw_ops->io_resume)
3913                 hw_ops->io_resume(pdev);
3914         else
3915                 dev_err(&pdev->dev, "AER resume handler not registered.\n");
3916 }
3917
3918
3919 static int
3920 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3921 {
3922         int err;
3923
3924         err = qlcnic_can_start_firmware(adapter);
3925         if (err)
3926                 return err;
3927
3928         err = qlcnic_check_npar_opertional(adapter);
3929         if (err)
3930                 return err;
3931
3932         err = qlcnic_initialize_nic(adapter);
3933         if (err)
3934                 return err;
3935
3936         qlcnic_check_options(adapter);
3937
3938         err = qlcnic_set_eswitch_port_config(adapter);
3939         if (err)
3940                 return err;
3941
3942         adapter->need_fw_reset = 0;
3943
3944         return err;
3945 }
3946
3947 int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt,
3948                           int queue_type)
3949 {
3950         struct net_device *netdev = adapter->netdev;
3951         u8 max_hw_rings = 0;
3952         char buf[8];
3953         int cur_rings;
3954
3955         if (queue_type == QLCNIC_RX_QUEUE) {
3956                 max_hw_rings = adapter->max_sds_rings;
3957                 cur_rings = adapter->drv_sds_rings;
3958                 strcpy(buf, "SDS");
3959         } else if (queue_type == QLCNIC_TX_QUEUE) {
3960                 max_hw_rings = adapter->max_tx_rings;
3961                 cur_rings = adapter->drv_tx_rings;
3962                 strcpy(buf, "Tx");
3963         }
3964
3965         if (!QLCNIC_IS_MSI_FAMILY(adapter)) {
3966                 netdev_err(netdev, "No RSS/TSS support in INT-x mode\n");
3967                 return -EINVAL;
3968         }
3969
3970         if (adapter->flags & QLCNIC_MSI_ENABLED) {
3971                 netdev_err(netdev, "No RSS/TSS support in MSI mode\n");
3972                 return -EINVAL;
3973         }
3974
3975         if (!is_power_of_2(ring_cnt)) {
3976                 netdev_err(netdev, "%s rings value should be a power of 2\n",
3977                            buf);
3978                 return -EINVAL;
3979         }
3980
3981         if (qlcnic_82xx_check(adapter) && (queue_type == QLCNIC_TX_QUEUE) &&
3982             !qlcnic_check_multi_tx(adapter)) {
3983                         netdev_err(netdev, "No Multi Tx queue support\n");
3984                         return -EINVAL;
3985         }
3986
3987         if (ring_cnt > num_online_cpus()) {
3988                 netdev_err(netdev,
3989                            "%s value[%u] should not be higher than, number of online CPUs\n",
3990                            buf, num_online_cpus());
3991                 return -EINVAL;
3992         }
3993
3994         return 0;
3995 }
3996
3997 int qlcnic_setup_rings(struct qlcnic_adapter *adapter)
3998 {
3999         struct net_device *netdev = adapter->netdev;
4000         int err;
4001
4002         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
4003                 return -EBUSY;
4004
4005         netif_device_detach(netdev);
4006         if (netif_running(netdev))
4007                 __qlcnic_down(adapter, netdev);
4008
4009         qlcnic_detach(adapter);
4010
4011         if (qlcnic_83xx_check(adapter)) {
4012                 qlcnic_83xx_free_mbx_intr(adapter);
4013                 qlcnic_83xx_enable_mbx_poll(adapter);
4014         }
4015
4016         qlcnic_teardown_intr(adapter);
4017
4018         err = qlcnic_setup_intr(adapter);
4019         if (err) {
4020                 kfree(adapter->msix_entries);
4021                 netdev_err(netdev, "failed to setup interrupt\n");
4022                 return err;
4023         }
4024
4025         netif_set_real_num_tx_queues(netdev, adapter->drv_tx_rings);
4026
4027         if (qlcnic_83xx_check(adapter)) {
4028                 qlcnic_83xx_initialize_nic(adapter, 1);
4029                 err = qlcnic_83xx_setup_mbx_intr(adapter);
4030                 qlcnic_83xx_disable_mbx_poll(adapter);
4031                 if (err) {
4032                         dev_err(&adapter->pdev->dev,
4033                                 "failed to setup mbx interrupt\n");
4034                         goto done;
4035                 }
4036         }
4037
4038         if (netif_running(netdev)) {
4039                 err = qlcnic_attach(adapter);
4040                 if (err)
4041                         goto done;
4042                 err = __qlcnic_up(adapter, netdev);
4043                 if (err)
4044                         goto done;
4045                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
4046         }
4047 done:
4048         netif_device_attach(netdev);
4049         clear_bit(__QLCNIC_RESETTING, &adapter->state);
4050         return err;
4051 }
4052
4053 #ifdef CONFIG_INET
4054
4055 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4056
4057 static void
4058 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4059                         struct net_device *dev, unsigned long event)
4060 {
4061         struct in_device *indev;
4062
4063         indev = in_dev_get(dev);
4064         if (!indev)
4065                 return;
4066
4067         for_ifa(indev) {
4068                 switch (event) {
4069                 case NETDEV_UP:
4070                         qlcnic_config_ipaddr(adapter,
4071                                         ifa->ifa_address, QLCNIC_IP_UP);
4072                         break;
4073                 case NETDEV_DOWN:
4074                         qlcnic_config_ipaddr(adapter,
4075                                         ifa->ifa_address, QLCNIC_IP_DOWN);
4076                         break;
4077                 default:
4078                         break;
4079                 }
4080         } endfor_ifa(indev);
4081
4082         in_dev_put(indev);
4083 }
4084
4085 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4086 {
4087         struct qlcnic_adapter *adapter = netdev_priv(netdev);
4088         struct net_device *dev;
4089         u16 vid;
4090
4091         qlcnic_config_indev_addr(adapter, netdev, event);
4092
4093         rcu_read_lock();
4094         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
4095                 dev = __vlan_find_dev_deep(netdev, htons(ETH_P_8021Q), vid);
4096                 if (!dev)
4097                         continue;
4098                 qlcnic_config_indev_addr(adapter, dev, event);
4099         }
4100         rcu_read_unlock();
4101 }
4102
4103 static int qlcnic_netdev_event(struct notifier_block *this,
4104                                  unsigned long event, void *ptr)
4105 {
4106         struct qlcnic_adapter *adapter;
4107         struct net_device *dev = netdev_notifier_info_to_dev(ptr);
4108
4109 recheck:
4110         if (dev == NULL)
4111                 goto done;
4112
4113         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4114                 dev = vlan_dev_real_dev(dev);
4115                 goto recheck;
4116         }
4117
4118         if (!is_qlcnic_netdev(dev))
4119                 goto done;
4120
4121         adapter = netdev_priv(dev);
4122
4123         if (!adapter)
4124                 goto done;
4125
4126         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4127                 goto done;
4128
4129         qlcnic_config_indev_addr(adapter, dev, event);
4130 done:
4131         return NOTIFY_DONE;
4132 }
4133
4134 static int
4135 qlcnic_inetaddr_event(struct notifier_block *this,
4136                 unsigned long event, void *ptr)
4137 {
4138         struct qlcnic_adapter *adapter;
4139         struct net_device *dev;
4140
4141         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4142
4143         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4144
4145 recheck:
4146         if (dev == NULL)
4147                 goto done;
4148
4149         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4150                 dev = vlan_dev_real_dev(dev);
4151                 goto recheck;
4152         }
4153
4154         if (!is_qlcnic_netdev(dev))
4155                 goto done;
4156
4157         adapter = netdev_priv(dev);
4158
4159         if (!adapter)
4160                 goto done;
4161
4162         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4163                 goto done;
4164
4165         switch (event) {
4166         case NETDEV_UP:
4167                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4168
4169                 break;
4170         case NETDEV_DOWN:
4171                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4172
4173                 break;
4174         default:
4175                 break;
4176         }
4177
4178 done:
4179         return NOTIFY_DONE;
4180 }
4181
4182 static struct notifier_block    qlcnic_netdev_cb = {
4183         .notifier_call = qlcnic_netdev_event,
4184 };
4185
4186 static struct notifier_block qlcnic_inetaddr_cb = {
4187         .notifier_call = qlcnic_inetaddr_event,
4188 };
4189 #else
4190 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4191 { }
4192 #endif
4193 static const struct pci_error_handlers qlcnic_err_handler = {
4194         .error_detected = qlcnic_io_error_detected,
4195         .slot_reset = qlcnic_io_slot_reset,
4196         .resume = qlcnic_io_resume,
4197 };
4198
4199 static struct pci_driver qlcnic_driver = {
4200         .name = qlcnic_driver_name,
4201         .id_table = qlcnic_pci_tbl,
4202         .probe = qlcnic_probe,
4203         .remove = qlcnic_remove,
4204 #ifdef CONFIG_PM
4205         .suspend = qlcnic_suspend,
4206         .resume = qlcnic_resume,
4207 #endif
4208         .shutdown = qlcnic_shutdown,
4209         .err_handler = &qlcnic_err_handler,
4210 #ifdef CONFIG_QLCNIC_SRIOV
4211         .sriov_configure = qlcnic_pci_sriov_configure,
4212 #endif
4213
4214 };
4215
4216 static int __init qlcnic_init_module(void)
4217 {
4218         int ret;
4219
4220         printk(KERN_INFO "%s\n", qlcnic_driver_string);
4221
4222 #ifdef CONFIG_INET
4223         register_netdevice_notifier(&qlcnic_netdev_cb);
4224         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4225 #endif
4226
4227         ret = pci_register_driver(&qlcnic_driver);
4228         if (ret) {
4229 #ifdef CONFIG_INET
4230                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4231                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4232 #endif
4233         }
4234
4235         return ret;
4236 }
4237
4238 module_init(qlcnic_init_module);
4239
4240 static void __exit qlcnic_exit_module(void)
4241 {
4242         pci_unregister_driver(&qlcnic_driver);
4243
4244 #ifdef CONFIG_INET
4245         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4246         unregister_netdevice_notifier(&qlcnic_netdev_cb);
4247 #endif
4248 }
4249
4250 module_exit(qlcnic_exit_module);