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 const struct pci_device_id 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             qlcnic_sriov_check(adapter)) {
 383                 if (is_unicast_ether_addr(addr)) {
 384                         err = dev_uc_del(netdev, addr);
 385                         if (!err)
 386                                 err = qlcnic_nic_del_mac(adapter, addr);
 387                 } else if (is_multicast_ether_addr(addr)) {
 388                         err = dev_mc_del(netdev, addr);
 389                 } else {
 390                         err =  -EINVAL;
 391                 }
 392         }
 393         return err;
 394 }
 395
 396 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 397                         struct net_device *netdev,
 398                         const unsigned char *addr, u16 flags)
 399 {
 400         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 401         int err = 0;
 402
 403         if (!adapter->fdb_mac_learn)
 404                 return ndo_dflt_fdb_add(ndm, tb, netdev, addr, flags);
 405
 406         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) &&
 407             !qlcnic_sriov_check(adapter)) {
 408                 pr_info("%s: FDB e-switch is not enabled\n", __func__);
 409                 return -EOPNOTSUPP;
 410         }
 411
 412         if (ether_addr_equal(addr, adapter->mac_addr))
 413                 return err;
 414
 415         if (is_unicast_ether_addr(addr)) {
 416                 if (netdev_uc_count(netdev) < adapter->ahw->max_uc_count)
 417                         err = dev_uc_add_excl(netdev, addr);
 418                 else
 419                         err = -ENOMEM;
 420         } else if (is_multicast_ether_addr(addr)) {
 421                 err = dev_mc_add_excl(netdev, addr);
 422         } else {
 423                 err = -EINVAL;
 424         }
 425
 426         return err;
 427 }
 428
 429 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
 430                         struct net_device *netdev,
 431                         struct net_device *filter_dev, int idx)
 432 {
 433         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 434
 435         if (!adapter->fdb_mac_learn)
 436                 return ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
 437
 438         if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
 439             qlcnic_sriov_check(adapter))
 440                 idx = ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
 441
 442         return idx;
 443 }
 444
 445 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
 446 {
 447         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
 448                 usleep_range(10000, 11000);
 449
 450         if (!adapter->fw_work.work.func)
 451                 return;
 452
 453         cancel_delayed_work_sync(&adapter->fw_work);
 454 }
 455
 456 static int qlcnic_get_phys_port_id(struct net_device *netdev,
 457                                    struct netdev_phys_port_id *ppid)
 458 {
 459         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 460         struct qlcnic_hardware_context *ahw = adapter->ahw;
 461
 462         if (!(adapter->flags & QLCNIC_HAS_PHYS_PORT_ID))
 463                 return -EOPNOTSUPP;
 464
 465         ppid->id_len = sizeof(ahw->phys_port_id);
 466         memcpy(ppid->id, ahw->phys_port_id, ppid->id_len);
 467
 468         return 0;
 469 }
 470
 471 #ifdef CONFIG_QLCNIC_VXLAN
 472 static void qlcnic_add_vxlan_port(struct net_device *netdev,
 473                                   sa_family_t sa_family, __be16 port)
 474 {
 475         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 476         struct qlcnic_hardware_context *ahw = adapter->ahw;
 477
 478         /* Adapter supports only one VXLAN port. Use very first port
 479          * for enabling offload
 480          */
 481         if (!qlcnic_encap_rx_offload(adapter) || ahw->vxlan_port)
 482                 return;
 483
 484         ahw->vxlan_port = ntohs(port);
 485         adapter->flags |= QLCNIC_ADD_VXLAN_PORT;
 486 }
 487
 488 static void qlcnic_del_vxlan_port(struct net_device *netdev,
 489                                   sa_family_t sa_family, __be16 port)
 490 {
 491         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 492         struct qlcnic_hardware_context *ahw = adapter->ahw;
 493
 494         if (!qlcnic_encap_rx_offload(adapter) || !ahw->vxlan_port ||
 495             (ahw->vxlan_port != ntohs(port)))
 496                 return;
 497
 498         adapter->flags |= QLCNIC_DEL_VXLAN_PORT;
 499 }
 500 #endif
 501
 502 static const struct net_device_ops qlcnic_netdev_ops = {
 503         .ndo_open          = qlcnic_open,
 504         .ndo_stop          = qlcnic_close,
 505         .ndo_start_xmit    = qlcnic_xmit_frame,
 506         .ndo_get_stats     = qlcnic_get_stats,
 507         .ndo_validate_addr = eth_validate_addr,
 508         .ndo_set_rx_mode   = qlcnic_set_multi,
 509         .ndo_set_mac_address    = qlcnic_set_mac,
 510         .ndo_change_mtu    = qlcnic_change_mtu,
 511         .ndo_fix_features  = qlcnic_fix_features,
 512         .ndo_set_features  = qlcnic_set_features,
 513         .ndo_tx_timeout    = qlcnic_tx_timeout,
 514         .ndo_vlan_rx_add_vid    = qlcnic_vlan_rx_add,
 515         .ndo_vlan_rx_kill_vid   = qlcnic_vlan_rx_del,
 516         .ndo_fdb_add            = qlcnic_fdb_add,
 517         .ndo_fdb_del            = qlcnic_fdb_del,
 518         .ndo_fdb_dump           = qlcnic_fdb_dump,
 519         .ndo_get_phys_port_id   = qlcnic_get_phys_port_id,
 520 #ifdef CONFIG_QLCNIC_VXLAN
 521         .ndo_add_vxlan_port     = qlcnic_add_vxlan_port,
 522         .ndo_del_vxlan_port     = qlcnic_del_vxlan_port,
 523 #endif
 524 #ifdef CONFIG_NET_POLL_CONTROLLER
 525         .ndo_poll_controller = qlcnic_poll_controller,
 526 #endif
 527 #ifdef CONFIG_QLCNIC_SRIOV
 528         .ndo_set_vf_mac         = qlcnic_sriov_set_vf_mac,
 529         .ndo_set_vf_rate        = qlcnic_sriov_set_vf_tx_rate,
 530         .ndo_get_vf_config      = qlcnic_sriov_get_vf_config,
 531         .ndo_set_vf_vlan        = qlcnic_sriov_set_vf_vlan,
 532         .ndo_set_vf_spoofchk    = qlcnic_sriov_set_vf_spoofchk,
 533 #endif
 534 };
 535
 536 static const struct net_device_ops qlcnic_netdev_failed_ops = {
 537         .ndo_open          = qlcnic_open,
 538 };
 539
 540 static struct qlcnic_nic_template qlcnic_ops = {
 541         .config_bridged_mode    = qlcnic_config_bridged_mode,
 542         .config_led             = qlcnic_82xx_config_led,
 543         .start_firmware         = qlcnic_82xx_start_firmware,
 544         .request_reset          = qlcnic_82xx_dev_request_reset,
 545         .cancel_idc_work        = qlcnic_82xx_cancel_idc_work,
 546         .napi_add               = qlcnic_82xx_napi_add,
 547         .napi_del               = qlcnic_82xx_napi_del,
 548         .config_ipaddr          = qlcnic_82xx_config_ipaddr,
 549         .shutdown               = qlcnic_82xx_shutdown,
 550         .resume                 = qlcnic_82xx_resume,
 551         .clear_legacy_intr      = qlcnic_82xx_clear_legacy_intr,
 552 };
 553
 554 struct qlcnic_nic_template qlcnic_vf_ops = {
 555         .config_bridged_mode    = qlcnicvf_config_bridged_mode,
 556         .config_led             = qlcnicvf_config_led,
 557         .start_firmware         = qlcnicvf_start_firmware
 558 };
 559
 560 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
 561         .read_crb                       = qlcnic_82xx_read_crb,
 562         .write_crb                      = qlcnic_82xx_write_crb,
 563         .read_reg                       = qlcnic_82xx_hw_read_wx_2M,
 564         .write_reg                      = qlcnic_82xx_hw_write_wx_2M,
 565         .get_mac_address                = qlcnic_82xx_get_mac_address,
 566         .setup_intr                     = qlcnic_82xx_setup_intr,
 567         .alloc_mbx_args                 = qlcnic_82xx_alloc_mbx_args,
 568         .mbx_cmd                        = qlcnic_82xx_issue_cmd,
 569         .get_func_no                    = qlcnic_82xx_get_func_no,
 570         .api_lock                       = qlcnic_82xx_api_lock,
 571         .api_unlock                     = qlcnic_82xx_api_unlock,
 572         .add_sysfs                      = qlcnic_82xx_add_sysfs,
 573         .remove_sysfs                   = qlcnic_82xx_remove_sysfs,
 574         .process_lb_rcv_ring_diag       = qlcnic_82xx_process_rcv_ring_diag,
 575         .create_rx_ctx                  = qlcnic_82xx_fw_cmd_create_rx_ctx,
 576         .create_tx_ctx                  = qlcnic_82xx_fw_cmd_create_tx_ctx,
 577         .del_rx_ctx                     = qlcnic_82xx_fw_cmd_del_rx_ctx,
 578         .del_tx_ctx                     = qlcnic_82xx_fw_cmd_del_tx_ctx,
 579         .setup_link_event               = qlcnic_82xx_linkevent_request,
 580         .get_nic_info                   = qlcnic_82xx_get_nic_info,
 581         .get_pci_info                   = qlcnic_82xx_get_pci_info,
 582         .set_nic_info                   = qlcnic_82xx_set_nic_info,
 583         .change_macvlan                 = qlcnic_82xx_sre_macaddr_change,
 584         .napi_enable                    = qlcnic_82xx_napi_enable,
 585         .napi_disable                   = qlcnic_82xx_napi_disable,
 586         .config_intr_coal               = qlcnic_82xx_config_intr_coalesce,
 587         .config_rss                     = qlcnic_82xx_config_rss,
 588         .config_hw_lro                  = qlcnic_82xx_config_hw_lro,
 589         .config_loopback                = qlcnic_82xx_set_lb_mode,
 590         .clear_loopback                 = qlcnic_82xx_clear_lb_mode,
 591         .config_promisc_mode            = qlcnic_82xx_nic_set_promisc,
 592         .change_l2_filter               = qlcnic_82xx_change_filter,
 593         .get_board_info                 = qlcnic_82xx_get_board_info,
 594         .set_mac_filter_count           = qlcnic_82xx_set_mac_filter_count,
 595         .free_mac_list                  = qlcnic_82xx_free_mac_list,
 596         .read_phys_port_id              = qlcnic_82xx_read_phys_port_id,
 597         .io_error_detected              = qlcnic_82xx_io_error_detected,
 598         .io_slot_reset                  = qlcnic_82xx_io_slot_reset,
 599         .io_resume                      = qlcnic_82xx_io_resume,
 600         .get_beacon_state               = qlcnic_82xx_get_beacon_state,
 601         .enable_sds_intr                = qlcnic_82xx_enable_sds_intr,
 602         .disable_sds_intr               = qlcnic_82xx_disable_sds_intr,
 603         .enable_tx_intr                 = qlcnic_82xx_enable_tx_intr,
 604         .disable_tx_intr                = qlcnic_82xx_disable_tx_intr,
 605         .get_saved_state                = qlcnic_82xx_get_saved_state,
 606         .set_saved_state                = qlcnic_82xx_set_saved_state,
 607         .cache_tmpl_hdr_values          = qlcnic_82xx_cache_tmpl_hdr_values,
 608         .get_cap_size                   = qlcnic_82xx_get_cap_size,
 609         .set_sys_info                   = qlcnic_82xx_set_sys_info,
 610         .store_cap_mask                 = qlcnic_82xx_store_cap_mask,
 611 };
 612
 613 static int qlcnic_check_multi_tx_capability(struct qlcnic_adapter *adapter)
 614 {
 615         struct qlcnic_hardware_context *ahw = adapter->ahw;
 616
 617         if (qlcnic_82xx_check(adapter) &&
 618             (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_MULTI_TX)) {
 619                 test_and_set_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
 620                 return 0;
 621         } else {
 622                 return 1;
 623         }
 624 }
 625
 626 static int qlcnic_max_rings(struct qlcnic_adapter *adapter, u8 ring_cnt,
 627                             int queue_type)
 628 {
 629         int num_rings, max_rings = QLCNIC_MAX_SDS_RINGS;
 630
 631         if (queue_type == QLCNIC_RX_QUEUE)
 632                 max_rings = adapter->max_sds_rings;
 633         else if (queue_type == QLCNIC_TX_QUEUE)
 634                 max_rings = adapter->max_tx_rings;
 635
 636         num_rings = rounddown_pow_of_two(min_t(int, num_online_cpus(),
 637                                               max_rings));
 638
 639         if (ring_cnt > num_rings)
 640                 return num_rings;
 641         else
 642                 return ring_cnt;
 643 }
 644
 645 void qlcnic_set_tx_ring_count(struct qlcnic_adapter *adapter, u8 tx_cnt)
 646 {
 647         /* 83xx adapter does not have max_tx_rings intialized in probe */
 648         if (adapter->max_tx_rings)
 649                 adapter->drv_tx_rings = qlcnic_max_rings(adapter, tx_cnt,
 650                                                          QLCNIC_TX_QUEUE);
 651         else
 652                 adapter->drv_tx_rings = tx_cnt;
 653 }
 654
 655 void qlcnic_set_sds_ring_count(struct qlcnic_adapter *adapter, u8 rx_cnt)
 656 {
 657         /* 83xx adapter does not have max_sds_rings intialized in probe */
 658         if (adapter->max_sds_rings)
 659                 adapter->drv_sds_rings = qlcnic_max_rings(adapter, rx_cnt,
 660                                                           QLCNIC_RX_QUEUE);
 661         else
 662                 adapter->drv_sds_rings = rx_cnt;
 663 }
 664
 665 int qlcnic_setup_tss_rss_intr(struct qlcnic_adapter *adapter)
 666 {
 667         struct pci_dev *pdev = adapter->pdev;
 668         int num_msix = 0, err = 0, vector;
 669
 670         adapter->flags &= ~QLCNIC_TSS_RSS;
 671
 672         if (adapter->drv_tss_rings > 0)
 673                 num_msix += adapter->drv_tss_rings;
 674         else
 675                 num_msix += adapter->drv_tx_rings;
 676
 677         if (adapter->drv_rss_rings > 0)
 678                 num_msix += adapter->drv_rss_rings;
 679         else
 680                 num_msix += adapter->drv_sds_rings;
 681
 682         if (qlcnic_83xx_check(adapter))
 683                 num_msix += 1;
 684
 685         if (!adapter->msix_entries) {
 686                 adapter->msix_entries = kcalloc(num_msix,
 687                                                 sizeof(struct msix_entry),
 688                                                 GFP_KERNEL);
 689                 if (!adapter->msix_entries)
 690                         return -ENOMEM;
 691         }
 692
 693         for (vector = 0; vector < num_msix; vector++)
 694                 adapter->msix_entries[vector].entry = vector;
 695
 696 restore:
 697         err = pci_enable_msix_exact(pdev, adapter->msix_entries, num_msix);
 698         if (err == -ENOSPC) {
 699                 if (!adapter->drv_tss_rings && !adapter->drv_rss_rings)
 700                         return err;
 701
 702                 netdev_info(adapter->netdev,
 703                             "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
 704                             num_msix, err);
 705
 706                 num_msix = adapter->drv_tx_rings + adapter->drv_sds_rings;
 707
 708                 /* Set rings to 0 so we can restore original TSS/RSS count */
 709                 adapter->drv_tss_rings = 0;
 710                 adapter->drv_rss_rings = 0;
 711
 712                 if (qlcnic_83xx_check(adapter))
 713                         num_msix += 1;
 714
 715                 netdev_info(adapter->netdev,
 716                             "Restoring %d Tx, %d SDS rings for total %d vectors.\n",
 717                             adapter->drv_tx_rings, adapter->drv_sds_rings,
 718                             num_msix);
 719
 720                 goto restore;
 721         } else if (err < 0) {
 722                 return err;
 723         }
 724
 725         adapter->ahw->num_msix = num_msix;
 726         if (adapter->drv_tss_rings > 0)
 727                 adapter->drv_tx_rings = adapter->drv_tss_rings;
 728
 729         if (adapter->drv_rss_rings > 0)
 730                 adapter->drv_sds_rings = adapter->drv_rss_rings;
 731
 732         return 0;
 733 }
 734
 735 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 736 {
 737         struct pci_dev *pdev = adapter->pdev;
 738         int err, vector;
 739
 740         if (!adapter->msix_entries) {
 741                 adapter->msix_entries = kcalloc(num_msix,
 742                                                 sizeof(struct msix_entry),
 743                                                 GFP_KERNEL);
 744                 if (!adapter->msix_entries)
 745                         return -ENOMEM;
 746         }
 747
 748         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 749
 750         if (adapter->ahw->msix_supported) {
 751 enable_msix:
 752                 for (vector = 0; vector < num_msix; vector++)
 753                         adapter->msix_entries[vector].entry = vector;
 754
 755                 err = pci_enable_msix_range(pdev,
 756                                             adapter->msix_entries, 1, num_msix);
 757
 758                 if (err == num_msix) {
 759                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 760                         adapter->ahw->num_msix = num_msix;
 761                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 762                         return 0;
 763                 } else if (err > 0) {
 764                         pci_disable_msix(pdev);
 765
 766                         dev_info(&pdev->dev,
 767                                  "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
 768                                  num_msix, err);
 769
 770                         if (qlcnic_82xx_check(adapter)) {
 771                                 num_msix = rounddown_pow_of_two(err);
 772                                 if (err < QLCNIC_82XX_MINIMUM_VECTOR)
 773                                         return -ENOSPC;
 774                         } else {
 775                                 num_msix = rounddown_pow_of_two(err - 1);
 776                                 num_msix += 1;
 777                                 if (err < QLCNIC_83XX_MINIMUM_VECTOR)
 778                                         return -ENOSPC;
 779                         }
 780
 781                         if (qlcnic_82xx_check(adapter) &&
 782                             !qlcnic_check_multi_tx(adapter)) {
 783                                 adapter->drv_sds_rings = num_msix;
 784                                 adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
 785                         } else {
 786                                 /* Distribute vectors equally */
 787                                 adapter->drv_tx_rings = num_msix / 2;
 788                                 adapter->drv_sds_rings = adapter->drv_tx_rings;
 789                         }
 790
 791                         if (num_msix) {
 792                                 dev_info(&pdev->dev,
 793                                          "Trying to allocate %d MSI-X interrupt vectors\n",
 794                                          num_msix);
 795                                 goto enable_msix;
 796                         }
 797                 } else {
 798                         dev_info(&pdev->dev,
 799                                  "Unable to allocate %d MSI-X vectors, err=%d\n",
 800                                  num_msix, err);
 801                         return err;
 802                 }
 803         }
 804
 805         return -EIO;
 806 }
 807
 808 static int qlcnic_82xx_calculate_msix_vector(struct qlcnic_adapter *adapter)
 809 {
 810         int num_msix;
 811
 812         num_msix = adapter->drv_sds_rings;
 813
 814         if (qlcnic_check_multi_tx(adapter))
 815                 num_msix += adapter->drv_tx_rings;
 816         else
 817                 num_msix += QLCNIC_SINGLE_RING;
 818
 819         return num_msix;
 820 }
 821
 822 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
 823 {
 824         int err = 0;
 825         u32 offset, mask_reg;
 826         const struct qlcnic_legacy_intr_set *legacy_intrp;
 827         struct qlcnic_hardware_context *ahw = adapter->ahw;
 828         struct pci_dev *pdev = adapter->pdev;
 829
 830         if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
 831                 adapter->flags |= QLCNIC_MSI_ENABLED;
 832                 offset = msi_tgt_status[adapter->ahw->pci_func];
 833                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
 834                                                             offset);
 835                 dev_info(&pdev->dev, "using msi interrupts\n");
 836                 adapter->msix_entries[0].vector = pdev->irq;
 837                 return err;
 838         }
 839
 840         if (qlcnic_use_msi || qlcnic_use_msi_x)
 841                 return -EOPNOTSUPP;
 842
 843         legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
 844         adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
 845         offset = legacy_intrp->tgt_status_reg;
 846         adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
 847         mask_reg = legacy_intrp->tgt_mask_reg;
 848         adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
 849         adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
 850         adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
 851         dev_info(&pdev->dev, "using legacy interrupts\n");
 852         adapter->msix_entries[0].vector = pdev->irq;
 853         return err;
 854 }
 855
 856 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter)
 857 {
 858         int num_msix, err = 0;
 859
 860         if (adapter->flags & QLCNIC_TSS_RSS) {
 861                 err = qlcnic_setup_tss_rss_intr(adapter);
 862                 if (err < 0)
 863                         return err;
 864                 num_msix = adapter->ahw->num_msix;
 865         } else {
 866                 num_msix = qlcnic_82xx_calculate_msix_vector(adapter);
 867
 868                 err = qlcnic_enable_msix(adapter, num_msix);
 869                 if (err == -ENOMEM)
 870                         return err;
 871
 872                 if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
 873                         qlcnic_disable_multi_tx(adapter);
 874                         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
 875
 876                         err = qlcnic_enable_msi_legacy(adapter);
 877                         if (err)
 878                                 return err;
 879                 }
 880         }
 881
 882         return 0;
 883 }
 884
 885 int qlcnic_82xx_mq_intrpt(struct qlcnic_adapter *adapter, int op_type)
 886 {
 887         struct qlcnic_hardware_context *ahw = adapter->ahw;
 888         int err, i;
 889
 890         if (qlcnic_check_multi_tx(adapter) &&
 891             !ahw->diag_test &&
 892             (adapter->flags & QLCNIC_MSIX_ENABLED)) {
 893                 ahw->intr_tbl = vzalloc(ahw->num_msix *
 894                                         sizeof(struct qlcnic_intrpt_config));
 895                 if (!ahw->intr_tbl)
 896                         return -ENOMEM;
 897
 898                 for (i = 0; i < ahw->num_msix; i++) {
 899                         ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
 900                         ahw->intr_tbl[i].id = i;
 901                         ahw->intr_tbl[i].src = 0;
 902                 }
 903
 904                 err = qlcnic_82xx_config_intrpt(adapter, 1);
 905                 if (err)
 906                         dev_err(&adapter->pdev->dev,
 907                                 "Failed to configure Interrupt for %d vector\n",
 908                                 ahw->num_msix);
 909                 return err;
 910         }
 911
 912         return 0;
 913 }
 914
 915 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 916 {
 917         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 918                 pci_disable_msix(adapter->pdev);
 919         if (adapter->flags & QLCNIC_MSI_ENABLED)
 920                 pci_disable_msi(adapter->pdev);
 921
 922         kfree(adapter->msix_entries);
 923         adapter->msix_entries = NULL;
 924
 925         if (adapter->ahw->intr_tbl) {
 926                 vfree(adapter->ahw->intr_tbl);
 927                 adapter->ahw->intr_tbl = NULL;
 928         }
 929 }
 930
 931 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
 932 {
 933         if (ahw->pci_base0 != NULL)
 934                 iounmap(ahw->pci_base0);
 935 }
 936
 937 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
 938 {
 939         struct qlcnic_hardware_context *ahw = adapter->ahw;
 940         struct qlcnic_pci_info *pci_info;
 941         int ret;
 942
 943         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 944                 switch (ahw->port_type) {
 945                 case QLCNIC_GBE:
 946                         ahw->total_nic_func = QLCNIC_NIU_MAX_GBE_PORTS;
 947                         break;
 948                 case QLCNIC_XGBE:
 949                         ahw->total_nic_func = QLCNIC_NIU_MAX_XG_PORTS;
 950                         break;
 951                 }
 952                 return 0;
 953         }
 954
 955         if (ahw->op_mode == QLCNIC_MGMT_FUNC)
 956                 return 0;
 957
 958         pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
 959         if (!pci_info)
 960                 return -ENOMEM;
 961
 962         ret = qlcnic_get_pci_info(adapter, pci_info);
 963         kfree(pci_info);
 964         return ret;
 965 }
 966
 967 static bool qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter *adapter)
 968 {
 969         bool ret = false;
 970
 971         if (qlcnic_84xx_check(adapter)) {
 972                 ret = true;
 973         } else if (qlcnic_83xx_check(adapter)) {
 974                 if (adapter->ahw->extra_capability[0] &
 975                     QLCNIC_FW_CAPABILITY_2_PER_PORT_ESWITCH_CFG)
 976                         ret = true;
 977                 else
 978                         ret = false;
 979         }
 980
 981         return ret;
 982 }
 983
 984 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 985 {
 986         struct qlcnic_hardware_context *ahw = adapter->ahw;
 987         struct qlcnic_pci_info *pci_info;
 988         int i, id = 0, ret = 0, j = 0;
 989         u16 act_pci_func;
 990         u8 pfn;
 991
 992         pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
 993         if (!pci_info)
 994                 return -ENOMEM;
 995
 996         ret = qlcnic_get_pci_info(adapter, pci_info);
 997         if (ret)
 998                 goto err_pci_info;
 999
1000         act_pci_func = ahw->total_nic_func;
1001
1002         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
1003                                  act_pci_func, GFP_KERNEL);
1004         if (!adapter->npars) {
1005                 ret = -ENOMEM;
1006                 goto err_pci_info;
1007         }
1008
1009         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
1010                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
1011         if (!adapter->eswitch) {
1012                 ret = -ENOMEM;
1013                 goto err_npars;
1014         }
1015
1016         for (i = 0; i < ahw->max_vnic_func; i++) {
1017                 pfn = pci_info[i].id;
1018
1019                 if (pfn >= ahw->max_vnic_func) {
1020                         ret = QL_STATUS_INVALID_PARAM;
1021                         dev_err(&adapter->pdev->dev, "%s: Invalid function 0x%x, max 0x%x\n",
1022                                 __func__, pfn, ahw->max_vnic_func);
1023                         goto err_eswitch;
1024                 }
1025
1026                 if (!pci_info[i].active ||
1027                     (pci_info[i].type != QLCNIC_TYPE_NIC))
1028                         continue;
1029
1030                 if (qlcnic_port_eswitch_cfg_capability(adapter)) {
1031                         if (!qlcnic_83xx_set_port_eswitch_status(adapter, pfn,
1032                                                                  &id))
1033                                 adapter->npars[j].eswitch_status = true;
1034                         else
1035                                 continue;
1036                 } else {
1037                         adapter->npars[j].eswitch_status = true;
1038                 }
1039
1040                 adapter->npars[j].pci_func = pfn;
1041                 adapter->npars[j].active = (u8)pci_info[i].active;
1042                 adapter->npars[j].type = (u8)pci_info[i].type;
1043                 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
1044                 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
1045                 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
1046
1047                 memcpy(&adapter->npars[j].mac, &pci_info[i].mac, ETH_ALEN);
1048                 j++;
1049         }
1050
1051         /* Update eSwitch status for adapters without per port eSwitch
1052          * configuration capability
1053          */
1054         if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
1055                 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
1056                         adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
1057         }
1058
1059         kfree(pci_info);
1060         return 0;
1061
1062 err_eswitch:
1063         kfree(adapter->eswitch);
1064         adapter->eswitch = NULL;
1065 err_npars:
1066         kfree(adapter->npars);
1067         adapter->npars = NULL;
1068 err_pci_info:
1069         kfree(pci_info);
1070
1071         return ret;
1072 }
1073
1074 static int
1075 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
1076 {
1077         u8 id;
1078         int ret;
1079         u32 data = QLCNIC_MGMT_FUNC;
1080         struct qlcnic_hardware_context *ahw = adapter->ahw;
1081
1082         ret = qlcnic_api_lock(adapter);
1083         if (ret)
1084                 goto err_lock;
1085
1086         id = ahw->pci_func;
1087         data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1088         data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
1089                QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
1090         QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
1091         qlcnic_api_unlock(adapter);
1092 err_lock:
1093         return ret;
1094 }
1095
1096 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
1097                             const struct pci_device_id *ent)
1098 {
1099         u32 op_mode, priv_level;
1100
1101         /* Determine FW API version */
1102         adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
1103                                                            QLCNIC_FW_API);
1104
1105         /* Find PCI function number */
1106         qlcnic_get_func_no(adapter);
1107
1108         /* Determine function privilege level */
1109         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1110         if (op_mode == QLC_DEV_DRV_DEFAULT)
1111                 priv_level = QLCNIC_MGMT_FUNC;
1112         else
1113                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1114
1115         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
1116                 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
1117                 dev_info(&adapter->pdev->dev,
1118                         "HAL Version: %d Non Privileged function\n",
1119                          adapter->ahw->fw_hal_version);
1120                 adapter->nic_ops = &qlcnic_vf_ops;
1121         } else
1122                 adapter->nic_ops = &qlcnic_ops;
1123 }
1124
1125 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
1126 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
1127 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
1128 {
1129         switch (dev_id) {
1130         case PCI_DEVICE_ID_QLOGIC_QLE824X:
1131                 *bar = QLCNIC_82XX_BAR0_LENGTH;
1132                 break;
1133         case PCI_DEVICE_ID_QLOGIC_QLE834X:
1134         case PCI_DEVICE_ID_QLOGIC_QLE844X:
1135         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
1136         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
1137                 *bar = QLCNIC_83XX_BAR0_LENGTH;
1138                 break;
1139         default:
1140                 *bar = 0;
1141         }
1142 }
1143
1144 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
1145                                 struct qlcnic_hardware_context *ahw)
1146 {
1147         u32 offset;
1148         void __iomem *mem_ptr0 = NULL;
1149         unsigned long mem_len, pci_len0 = 0, bar0_len;
1150
1151         /* remap phys address */
1152         mem_len = pci_resource_len(pdev, 0);
1153
1154         qlcnic_get_bar_length(pdev->device, &bar0_len);
1155         if (mem_len >= bar0_len) {
1156
1157                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
1158                 if (mem_ptr0 == NULL) {
1159                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
1160                         return -EIO;
1161                 }
1162                 pci_len0 = mem_len;
1163         } else {
1164                 return -EIO;
1165         }
1166
1167         dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
1168
1169         ahw->pci_base0 = mem_ptr0;
1170         ahw->pci_len0 = pci_len0;
1171         offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
1172         qlcnic_get_ioaddr(ahw, offset);
1173
1174         return 0;
1175 }
1176
1177 static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
1178                                          int index)
1179 {
1180         struct pci_dev *pdev = adapter->pdev;
1181         unsigned short subsystem_vendor;
1182         bool ret = true;
1183
1184         subsystem_vendor = pdev->subsystem_vendor;
1185
1186         if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
1187             pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1188                 if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
1189                     qlcnic_boards[index].sub_device == pdev->subsystem_device)
1190                         ret = true;
1191                 else
1192                         ret = false;
1193         }
1194
1195         return ret;
1196 }
1197
1198 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
1199 {
1200         struct pci_dev *pdev = adapter->pdev;
1201         int i, found = 0;
1202
1203         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1204                 if (qlcnic_boards[i].vendor == pdev->vendor &&
1205                     qlcnic_boards[i].device == pdev->device &&
1206                     qlcnic_validate_subsystem_id(adapter, i)) {
1207                         found = 1;
1208                         break;
1209                 }
1210         }
1211
1212         if (!found)
1213                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
1214         else
1215                 sprintf(name, "%pM: %s" , adapter->mac_addr,
1216                         qlcnic_boards[i].short_name);
1217 }
1218
1219 static void
1220 qlcnic_check_options(struct qlcnic_adapter *adapter)
1221 {
1222         int err;
1223         u32 fw_major, fw_minor, fw_build, prev_fw_version;
1224         struct pci_dev *pdev = adapter->pdev;
1225         struct qlcnic_hardware_context *ahw = adapter->ahw;
1226         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
1227
1228         prev_fw_version = adapter->fw_version;
1229
1230         fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
1231         fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
1232         fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
1233
1234         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
1235
1236         err = qlcnic_get_board_info(adapter);
1237         if (err) {
1238                 dev_err(&pdev->dev, "Error getting board config info.\n");
1239                 return;
1240         }
1241         if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
1242                 if (fw_dump->tmpl_hdr == NULL ||
1243                                 adapter->fw_version > prev_fw_version) {
1244                         if (fw_dump->tmpl_hdr)
1245                                 vfree(fw_dump->tmpl_hdr);
1246                         if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1247                                 dev_info(&pdev->dev,
1248                                         "Supports FW dump capability\n");
1249                 }
1250         }
1251
1252         dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
1253                  QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
1254
1255         if (adapter->ahw->port_type == QLCNIC_XGBE) {
1256                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1257                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
1258                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
1259                 } else {
1260                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
1261                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
1262                 }
1263
1264                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1265                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1266
1267         } else if (adapter->ahw->port_type == QLCNIC_GBE) {
1268                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
1269                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1270                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1271                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
1272         }
1273
1274         adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
1275
1276         adapter->num_txd = MAX_CMD_DESCRIPTORS;
1277
1278         adapter->max_rds_rings = MAX_RDS_RINGS;
1279 }
1280
1281 static int
1282 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
1283 {
1284         struct qlcnic_info nic_info;
1285         int err = 0;
1286
1287         memset(&nic_info, 0, sizeof(struct qlcnic_info));
1288         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
1289         if (err)
1290                 return err;
1291
1292         adapter->ahw->physical_port = (u8)nic_info.phys_port;
1293         adapter->ahw->switch_mode = nic_info.switch_mode;
1294         adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
1295         adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
1296         adapter->ahw->capabilities = nic_info.capabilities;
1297
1298         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1299                 u32 temp;
1300                 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
1301                 if (err == -EIO)
1302                         return err;
1303                 adapter->ahw->extra_capability[0] = temp;
1304         } else {
1305                 adapter->ahw->extra_capability[0] = 0;
1306         }
1307
1308         adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1309         adapter->ahw->max_mtu = nic_info.max_mtu;
1310
1311         if (adapter->ahw->capabilities & BIT_6) {
1312                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1313                 adapter->ahw->nic_mode = QLCNIC_VNIC_MODE;
1314                 adapter->max_tx_rings = QLCNIC_MAX_HW_VNIC_TX_RINGS;
1315                 adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
1316
1317                 dev_info(&adapter->pdev->dev, "vNIC mode enabled.\n");
1318         } else {
1319                 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1320                 adapter->max_tx_rings = QLCNIC_MAX_HW_TX_RINGS;
1321                 adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
1322                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1323         }
1324
1325         return err;
1326 }
1327
1328 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1329                             struct qlcnic_esw_func_cfg *esw_cfg)
1330 {
1331         if (esw_cfg->discard_tagged)
1332                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1333         else
1334                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1335
1336         if (esw_cfg->vlan_id) {
1337                 adapter->rx_pvid = esw_cfg->vlan_id;
1338                 adapter->tx_pvid = esw_cfg->vlan_id;
1339         } else {
1340                 adapter->rx_pvid = 0;
1341                 adapter->tx_pvid = 0;
1342         }
1343 }
1344
1345 static int
1346 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1347 {
1348         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1349         int err;
1350
1351         if (qlcnic_sriov_vf_check(adapter)) {
1352                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1353                 if (err) {
1354                         netdev_err(netdev,
1355                                    "Cannot add VLAN filter for VLAN id %d, err=%d",
1356                                    vid, err);
1357                         return err;
1358                 }
1359         }
1360
1361         set_bit(vid, adapter->vlans);
1362         return 0;
1363 }
1364
1365 static int
1366 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1367 {
1368         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1369         int err;
1370
1371         if (qlcnic_sriov_vf_check(adapter)) {
1372                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1373                 if (err) {
1374                         netdev_err(netdev,
1375                                    "Cannot delete VLAN filter for VLAN id %d, err=%d",
1376                                    vid, err);
1377                         return err;
1378                 }
1379         }
1380
1381         qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1382         clear_bit(vid, adapter->vlans);
1383         return 0;
1384 }
1385
1386 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1387                                       struct qlcnic_esw_func_cfg *esw_cfg)
1388 {
1389         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1390                                 QLCNIC_PROMISC_DISABLED);
1391
1392         if (esw_cfg->mac_anti_spoof)
1393                 adapter->flags |= QLCNIC_MACSPOOF;
1394
1395         if (!esw_cfg->mac_override)
1396                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1397
1398         if (!esw_cfg->promisc_mode)
1399                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1400 }
1401
1402 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1403 {
1404         struct qlcnic_esw_func_cfg esw_cfg;
1405
1406         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1407                 return 0;
1408
1409         esw_cfg.pci_func = adapter->ahw->pci_func;
1410         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1411                         return -EIO;
1412         qlcnic_set_vlan_config(adapter, &esw_cfg);
1413         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1414         qlcnic_set_netdev_features(adapter, &esw_cfg);
1415
1416         return 0;
1417 }
1418
1419 void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1420                                 struct qlcnic_esw_func_cfg *esw_cfg)
1421 {
1422         struct net_device *netdev = adapter->netdev;
1423
1424         if (qlcnic_83xx_check(adapter))
1425                 return;
1426
1427         adapter->offload_flags = esw_cfg->offload_flags;
1428         adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1429         netdev_update_features(netdev);
1430         adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1431 }
1432
1433 static int
1434 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1435 {
1436         u32 op_mode, priv_level;
1437         int err = 0;
1438
1439         err = qlcnic_initialize_nic(adapter);
1440         if (err)
1441                 return err;
1442
1443         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1444                 return 0;
1445
1446         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1447         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1448
1449         if (op_mode == QLC_DEV_DRV_DEFAULT)
1450                 priv_level = QLCNIC_MGMT_FUNC;
1451         else
1452                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1453
1454         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1455                 if (priv_level == QLCNIC_MGMT_FUNC) {
1456                         adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1457                         err = qlcnic_init_pci_info(adapter);
1458                         if (err)
1459                                 return err;
1460                         /* Set privilege level for other functions */
1461                         qlcnic_set_function_modes(adapter);
1462                         dev_info(&adapter->pdev->dev,
1463                                 "HAL Version: %d, Management function\n",
1464                                  adapter->ahw->fw_hal_version);
1465                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1466                         adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1467                         dev_info(&adapter->pdev->dev,
1468                                 "HAL Version: %d, Privileged function\n",
1469                                  adapter->ahw->fw_hal_version);
1470                 }
1471         } else {
1472                 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1473         }
1474
1475         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1476
1477         return err;
1478 }
1479
1480 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1481 {
1482         struct qlcnic_esw_func_cfg esw_cfg;
1483         struct qlcnic_npar_info *npar;
1484         u8 i;
1485
1486         if (adapter->need_fw_reset)
1487                 return 0;
1488
1489         for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1490                 if (!adapter->npars[i].eswitch_status)
1491                         continue;
1492
1493                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1494                 esw_cfg.pci_func = adapter->npars[i].pci_func;
1495                 esw_cfg.mac_override = BIT_0;
1496                 esw_cfg.promisc_mode = BIT_0;
1497                 if (qlcnic_82xx_check(adapter)) {
1498                         esw_cfg.offload_flags = BIT_0;
1499                         if (QLCNIC_IS_TSO_CAPABLE(adapter))
1500                                 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1501                 }
1502                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1503                         return -EIO;
1504                 npar = &adapter->npars[i];
1505                 npar->pvid = esw_cfg.vlan_id;
1506                 npar->mac_override = esw_cfg.mac_override;
1507                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1508                 npar->discard_tagged = esw_cfg.discard_tagged;
1509                 npar->promisc_mode = esw_cfg.promisc_mode;
1510                 npar->offload_flags = esw_cfg.offload_flags;
1511         }
1512
1513         return 0;
1514 }
1515
1516
1517 static int
1518 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1519                         struct qlcnic_npar_info *npar, int pci_func)
1520 {
1521         struct qlcnic_esw_func_cfg esw_cfg;
1522         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1523         esw_cfg.pci_func = pci_func;
1524         esw_cfg.vlan_id = npar->pvid;
1525         esw_cfg.mac_override = npar->mac_override;
1526         esw_cfg.discard_tagged = npar->discard_tagged;
1527         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1528         esw_cfg.offload_flags = npar->offload_flags;
1529         esw_cfg.promisc_mode = npar->promisc_mode;
1530         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1531                 return -EIO;
1532
1533         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1534         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1535                 return -EIO;
1536
1537         return 0;
1538 }
1539
1540 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1541 {
1542         int i, err;
1543         struct qlcnic_npar_info *npar;
1544         struct qlcnic_info nic_info;
1545         u8 pci_func;
1546
1547         if (qlcnic_82xx_check(adapter))
1548                 if (!adapter->need_fw_reset)
1549                         return 0;
1550
1551         /* Set the NPAR config data after FW reset */
1552         for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1553                 npar = &adapter->npars[i];
1554                 pci_func = npar->pci_func;
1555                 if (!adapter->npars[i].eswitch_status)
1556                         continue;
1557
1558                 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1559                 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1560                 if (err)
1561                         return err;
1562                 nic_info.min_tx_bw = npar->min_bw;
1563                 nic_info.max_tx_bw = npar->max_bw;
1564                 err = qlcnic_set_nic_info(adapter, &nic_info);
1565                 if (err)
1566                         return err;
1567
1568                 if (npar->enable_pm) {
1569                         err = qlcnic_config_port_mirroring(adapter,
1570                                                            npar->dest_npar, 1,
1571                                                            pci_func);
1572                         if (err)
1573                                 return err;
1574                 }
1575                 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1576                 if (err)
1577                         return err;
1578         }
1579         return 0;
1580 }
1581
1582 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1583 {
1584         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1585         u32 npar_state;
1586
1587         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1588                 return 0;
1589
1590         npar_state = QLC_SHARED_REG_RD32(adapter,
1591                                          QLCNIC_CRB_DEV_NPAR_STATE);
1592         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1593                 msleep(1000);
1594                 npar_state = QLC_SHARED_REG_RD32(adapter,
1595                                                  QLCNIC_CRB_DEV_NPAR_STATE);
1596         }
1597         if (!npar_opt_timeo) {
1598                 dev_err(&adapter->pdev->dev,
1599                         "Waiting for NPAR state to operational timeout\n");
1600                 return -EIO;
1601         }
1602         return 0;
1603 }
1604
1605 static int
1606 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1607 {
1608         int err;
1609
1610         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1611             adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1612                 return 0;
1613
1614         err = qlcnic_set_default_offload_settings(adapter);
1615         if (err)
1616                 return err;
1617
1618         err = qlcnic_reset_npar_config(adapter);
1619         if (err)
1620                 return err;
1621
1622         qlcnic_dev_set_npar_ready(adapter);
1623
1624         return err;
1625 }
1626
1627 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1628 {
1629         int err;
1630
1631         err = qlcnic_can_start_firmware(adapter);
1632         if (err < 0)
1633                 return err;
1634         else if (!err)
1635                 goto check_fw_status;
1636
1637         if (qlcnic_load_fw_file)
1638                 qlcnic_request_firmware(adapter);
1639         else {
1640                 err = qlcnic_check_flash_fw_ver(adapter);
1641                 if (err)
1642                         goto err_out;
1643
1644                 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1645         }
1646
1647         err = qlcnic_need_fw_reset(adapter);
1648         if (err == 0)
1649                 goto check_fw_status;
1650
1651         err = qlcnic_pinit_from_rom(adapter);
1652         if (err)
1653                 goto err_out;
1654
1655         err = qlcnic_load_firmware(adapter);
1656         if (err)
1657                 goto err_out;
1658
1659         qlcnic_release_firmware(adapter);
1660         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1661
1662 check_fw_status:
1663         err = qlcnic_check_fw_status(adapter);
1664         if (err)
1665                 goto err_out;
1666
1667         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1668         qlcnic_idc_debug_info(adapter, 1);
1669         err = qlcnic_check_eswitch_mode(adapter);
1670         if (err) {
1671                 dev_err(&adapter->pdev->dev,
1672                         "Memory allocation failed for eswitch\n");
1673                 goto err_out;
1674         }
1675         err = qlcnic_set_mgmt_operations(adapter);
1676         if (err)
1677                 goto err_out;
1678
1679         qlcnic_check_options(adapter);
1680         adapter->need_fw_reset = 0;
1681
1682         qlcnic_release_firmware(adapter);
1683         return 0;
1684
1685 err_out:
1686         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1687         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1688
1689         qlcnic_release_firmware(adapter);
1690         return err;
1691 }
1692
1693 static int
1694 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1695 {
1696         irq_handler_t handler;
1697         struct qlcnic_host_sds_ring *sds_ring;
1698         struct qlcnic_host_tx_ring *tx_ring;
1699         int err, ring, num_sds_rings;
1700
1701         unsigned long flags = 0;
1702         struct net_device *netdev = adapter->netdev;
1703         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1704
1705         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1706                 if (qlcnic_82xx_check(adapter))
1707                         handler = qlcnic_tmp_intr;
1708                 else
1709                         handler = qlcnic_83xx_tmp_intr;
1710                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1711                         flags |= IRQF_SHARED;
1712
1713         } else {
1714                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1715                         handler = qlcnic_msix_intr;
1716                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1717                         handler = qlcnic_msi_intr;
1718                 else {
1719                         flags |= IRQF_SHARED;
1720                         if (qlcnic_82xx_check(adapter))
1721                                 handler = qlcnic_intr;
1722                         else
1723                                 handler = qlcnic_83xx_intr;
1724                 }
1725         }
1726         adapter->irq = netdev->irq;
1727
1728         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1729                 if (qlcnic_82xx_check(adapter) ||
1730                     (qlcnic_83xx_check(adapter) &&
1731                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1732                         num_sds_rings = adapter->drv_sds_rings;
1733                         for (ring = 0; ring < num_sds_rings; ring++) {
1734                                 sds_ring = &recv_ctx->sds_rings[ring];
1735                                 if (qlcnic_82xx_check(adapter) &&
1736                                     !qlcnic_check_multi_tx(adapter) &&
1737                                     (ring == (num_sds_rings - 1))) {
1738                                         if (!(adapter->flags &
1739                                               QLCNIC_MSIX_ENABLED))
1740                                                 snprintf(sds_ring->name,
1741                                                          sizeof(sds_ring->name),
1742                                                          "qlcnic");
1743                                         else
1744                                                 snprintf(sds_ring->name,
1745                                                          sizeof(sds_ring->name),
1746                                                          "%s-tx-0-rx-%d",
1747                                                          netdev->name, ring);
1748                                 } else {
1749                                         snprintf(sds_ring->name,
1750                                                  sizeof(sds_ring->name),
1751                                                  "%s-rx-%d",
1752                                                  netdev->name, ring);
1753                                 }
1754                                 err = request_irq(sds_ring->irq, handler, flags,
1755                                                   sds_ring->name, sds_ring);
1756                                 if (err)
1757                                         return err;
1758                         }
1759                 }
1760                 if ((qlcnic_82xx_check(adapter) &&
1761                      qlcnic_check_multi_tx(adapter)) ||
1762                     (qlcnic_83xx_check(adapter) &&
1763                      (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1764                      !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
1765                         handler = qlcnic_msix_tx_intr;
1766                         for (ring = 0; ring < adapter->drv_tx_rings;
1767                              ring++) {
1768                                 tx_ring = &adapter->tx_ring[ring];
1769                                 snprintf(tx_ring->name, sizeof(tx_ring->name),
1770                                          "%s-tx-%d", netdev->name, ring);
1771                                 err = request_irq(tx_ring->irq, handler, flags,
1772                                                   tx_ring->name, tx_ring);
1773                                 if (err)
1774                                         return err;
1775                         }
1776                 }
1777         }
1778         return 0;
1779 }
1780
1781 static void
1782 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1783 {
1784         int ring;
1785         struct qlcnic_host_sds_ring *sds_ring;
1786         struct qlcnic_host_tx_ring *tx_ring;
1787
1788         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1789
1790         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1791                 if (qlcnic_82xx_check(adapter) ||
1792                     (qlcnic_83xx_check(adapter) &&
1793                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1794                         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1795                                 sds_ring = &recv_ctx->sds_rings[ring];
1796                                 free_irq(sds_ring->irq, sds_ring);
1797                         }
1798                 }
1799                 if ((qlcnic_83xx_check(adapter) &&
1800                      !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
1801                     (qlcnic_82xx_check(adapter) &&
1802                      qlcnic_check_multi_tx(adapter))) {
1803                         for (ring = 0; ring < adapter->drv_tx_rings;
1804                              ring++) {
1805                                 tx_ring = &adapter->tx_ring[ring];
1806                                 if (tx_ring->irq)
1807                                         free_irq(tx_ring->irq, tx_ring);
1808                         }
1809                 }
1810         }
1811 }
1812
1813 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1814 {
1815         u32 capab = 0;
1816
1817         if (qlcnic_82xx_check(adapter)) {
1818                 if (adapter->ahw->extra_capability[0] &
1819                     QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1820                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1821         } else {
1822                 capab = adapter->ahw->capabilities;
1823                 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1824                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1825         }
1826 }
1827
1828 static int qlcnic_config_def_intr_coalesce(struct qlcnic_adapter *adapter)
1829 {
1830         struct qlcnic_hardware_context *ahw = adapter->ahw;
1831         int err;
1832
1833         /* Initialize interrupt coalesce parameters */
1834         ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1835
1836         if (qlcnic_83xx_check(adapter)) {
1837                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
1838                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1839                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1840                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1841                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1842
1843                 err = qlcnic_83xx_set_rx_tx_intr_coal(adapter);
1844         } else {
1845                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1846                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1847                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1848
1849                 err = qlcnic_82xx_set_rx_coalesce(adapter);
1850         }
1851
1852         return err;
1853 }
1854
1855 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1856 {
1857         int ring;
1858         struct qlcnic_host_rds_ring *rds_ring;
1859
1860         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1861                 return -EIO;
1862
1863         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1864                 return 0;
1865
1866         if (qlcnic_set_eswitch_port_config(adapter))
1867                 return -EIO;
1868
1869         qlcnic_get_lro_mss_capability(adapter);
1870
1871         if (qlcnic_fw_create_ctx(adapter))
1872                 return -EIO;
1873
1874         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1875                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1876                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1877         }
1878
1879         qlcnic_set_multi(netdev);
1880         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1881
1882         adapter->ahw->linkup = 0;
1883
1884         if (adapter->drv_sds_rings > 1)
1885                 qlcnic_config_rss(adapter, 1);
1886
1887         qlcnic_config_def_intr_coalesce(adapter);
1888
1889         if (netdev->features & NETIF_F_LRO)
1890                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1891
1892         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1893         qlcnic_napi_enable(adapter);
1894
1895         qlcnic_linkevent_request(adapter, 1);
1896
1897         adapter->ahw->reset_context = 0;
1898         netif_tx_start_all_queues(netdev);
1899         return 0;
1900 }
1901
1902 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1903 {
1904         int err = 0;
1905
1906         rtnl_lock();
1907         if (netif_running(netdev))
1908                 err = __qlcnic_up(adapter, netdev);
1909         rtnl_unlock();
1910
1911         return err;
1912 }
1913
1914 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1915 {
1916         int ring;
1917
1918         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1919                 return;
1920
1921         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1922                 return;
1923
1924         smp_mb();
1925         netif_carrier_off(netdev);
1926         adapter->ahw->linkup = 0;
1927         netif_tx_disable(netdev);
1928
1929         qlcnic_free_mac_list(adapter);
1930
1931         if (adapter->fhash.fnum)
1932                 qlcnic_delete_lb_filters(adapter);
1933
1934         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1935         if (qlcnic_sriov_vf_check(adapter))
1936                 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1937
1938         qlcnic_napi_disable(adapter);
1939
1940         qlcnic_fw_destroy_ctx(adapter);
1941         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1942
1943         qlcnic_reset_rx_buffers_list(adapter);
1944
1945         for (ring = 0; ring < adapter->drv_tx_rings; ring++)
1946                 qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
1947 }
1948
1949 /* Usage: During suspend and firmware recovery module */
1950
1951 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1952 {
1953         rtnl_lock();
1954         if (netif_running(netdev))
1955                 __qlcnic_down(adapter, netdev);
1956         rtnl_unlock();
1957
1958 }
1959
1960 int
1961 qlcnic_attach(struct qlcnic_adapter *adapter)
1962 {
1963         struct net_device *netdev = adapter->netdev;
1964         struct pci_dev *pdev = adapter->pdev;
1965         int err;
1966
1967         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1968                 return 0;
1969
1970         err = qlcnic_napi_add(adapter, netdev);
1971         if (err)
1972                 return err;
1973
1974         err = qlcnic_alloc_sw_resources(adapter);
1975         if (err) {
1976                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1977                 goto err_out_napi_del;
1978         }
1979
1980         err = qlcnic_alloc_hw_resources(adapter);
1981         if (err) {
1982                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1983                 goto err_out_free_sw;
1984         }
1985
1986         err = qlcnic_request_irq(adapter);
1987         if (err) {
1988                 dev_err(&pdev->dev, "failed to setup interrupt\n");
1989                 goto err_out_free_hw;
1990         }
1991
1992         qlcnic_create_sysfs_entries(adapter);
1993
1994 #ifdef CONFIG_QLCNIC_VXLAN
1995         if (qlcnic_encap_rx_offload(adapter))
1996                 vxlan_get_rx_port(netdev);
1997 #endif
1998
1999         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
2000         return 0;
2001
2002 err_out_free_hw:
2003         qlcnic_free_hw_resources(adapter);
2004 err_out_free_sw:
2005         qlcnic_free_sw_resources(adapter);
2006 err_out_napi_del:
2007         qlcnic_napi_del(adapter);
2008         return err;
2009 }
2010
2011 void qlcnic_detach(struct qlcnic_adapter *adapter)
2012 {
2013         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2014                 return;
2015
2016         qlcnic_remove_sysfs_entries(adapter);
2017
2018         qlcnic_free_hw_resources(adapter);
2019         qlcnic_release_rx_buffers(adapter);
2020         qlcnic_free_irq(adapter);
2021         qlcnic_napi_del(adapter);
2022         qlcnic_free_sw_resources(adapter);
2023
2024         adapter->is_up = 0;
2025 }
2026
2027 void qlcnic_diag_free_res(struct net_device *netdev, int drv_sds_rings)
2028 {
2029         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2030         struct qlcnic_host_sds_ring *sds_ring;
2031         int drv_tx_rings = adapter->drv_tx_rings;
2032         int ring;
2033
2034         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
2035         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2036                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2037                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
2038                         qlcnic_disable_sds_intr(adapter, sds_ring);
2039                 }
2040         }
2041
2042         qlcnic_fw_destroy_ctx(adapter);
2043
2044         qlcnic_detach(adapter);
2045
2046         adapter->ahw->diag_test = 0;
2047         adapter->drv_sds_rings = drv_sds_rings;
2048         adapter->drv_tx_rings = drv_tx_rings;
2049
2050         if (qlcnic_attach(adapter))
2051                 goto out;
2052
2053         if (netif_running(netdev))
2054                 __qlcnic_up(adapter, netdev);
2055 out:
2056         netif_device_attach(netdev);
2057 }
2058
2059 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
2060 {
2061         struct qlcnic_hardware_context *ahw = adapter->ahw;
2062         int err = 0;
2063
2064         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
2065                                 GFP_KERNEL);
2066         if (!adapter->recv_ctx) {
2067                 err = -ENOMEM;
2068                 goto err_out;
2069         }
2070
2071         if (qlcnic_83xx_check(adapter)) {
2072                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
2073                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
2074                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
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         } else {
2078                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
2079                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2080                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2081         }
2082
2083         /* clear stats */
2084         memset(&adapter->stats, 0, sizeof(adapter->stats));
2085 err_out:
2086         return err;
2087 }
2088
2089 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
2090 {
2091         struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
2092
2093         kfree(adapter->recv_ctx);
2094         adapter->recv_ctx = NULL;
2095
2096         if (fw_dump->tmpl_hdr) {
2097                 vfree(fw_dump->tmpl_hdr);
2098                 fw_dump->tmpl_hdr = NULL;
2099         }
2100
2101         if (fw_dump->dma_buffer) {
2102                 dma_free_coherent(&adapter->pdev->dev, QLC_PEX_DMA_READ_SIZE,
2103                                   fw_dump->dma_buffer, fw_dump->phys_addr);
2104                 fw_dump->dma_buffer = NULL;
2105         }
2106
2107         kfree(adapter->ahw->reset.buff);
2108         adapter->ahw->fw_dump.tmpl_hdr = NULL;
2109 }
2110
2111 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
2112 {
2113         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2114         struct qlcnic_host_sds_ring *sds_ring;
2115         struct qlcnic_host_rds_ring *rds_ring;
2116         int ring;
2117         int ret;
2118
2119         netif_device_detach(netdev);
2120
2121         if (netif_running(netdev))
2122                 __qlcnic_down(adapter, netdev);
2123
2124         qlcnic_detach(adapter);
2125
2126         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
2127         adapter->ahw->diag_test = test;
2128         adapter->ahw->linkup = 0;
2129
2130         ret = qlcnic_attach(adapter);
2131         if (ret) {
2132                 netif_device_attach(netdev);
2133                 return ret;
2134         }
2135
2136         ret = qlcnic_fw_create_ctx(adapter);
2137         if (ret) {
2138                 qlcnic_detach(adapter);
2139                 netif_device_attach(netdev);
2140                 return ret;
2141         }
2142
2143         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
2144                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
2145                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
2146         }
2147
2148         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2149                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2150                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
2151                         qlcnic_enable_sds_intr(adapter, sds_ring);
2152                 }
2153         }
2154
2155         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
2156                 adapter->ahw->loopback_state = 0;
2157                 qlcnic_linkevent_request(adapter, 1);
2158         }
2159
2160         set_bit(__QLCNIC_DEV_UP, &adapter->state);
2161
2162         return 0;
2163 }
2164
2165 /* Reset context in hardware only */
2166 static int
2167 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
2168 {
2169         struct net_device *netdev = adapter->netdev;
2170
2171         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2172                 return -EBUSY;
2173
2174         netif_device_detach(netdev);
2175
2176         qlcnic_down(adapter, netdev);
2177
2178         qlcnic_up(adapter, netdev);
2179
2180         netif_device_attach(netdev);
2181
2182         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2183         netdev_info(adapter->netdev, "%s: soft reset complete\n", __func__);
2184         return 0;
2185 }
2186
2187 int
2188 qlcnic_reset_context(struct qlcnic_adapter *adapter)
2189 {
2190         int err = 0;
2191         struct net_device *netdev = adapter->netdev;
2192
2193         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2194                 return -EBUSY;
2195
2196         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
2197
2198                 netif_device_detach(netdev);
2199
2200                 if (netif_running(netdev))
2201                         __qlcnic_down(adapter, netdev);
2202
2203                 qlcnic_detach(adapter);
2204
2205                 if (netif_running(netdev)) {
2206                         err = qlcnic_attach(adapter);
2207                         if (!err) {
2208                                 __qlcnic_up(adapter, netdev);
2209                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2210                         }
2211                 }
2212
2213                 netif_device_attach(netdev);
2214         }
2215
2216         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2217         return err;
2218 }
2219
2220 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
2221 {
2222         struct qlcnic_hardware_context *ahw = adapter->ahw;
2223         u16 act_pci_fn = ahw->total_nic_func;
2224         u16 count;
2225
2226         ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
2227         if (act_pci_fn <= 2)
2228                 count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
2229                          act_pci_fn;
2230         else
2231                 count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
2232                          act_pci_fn;
2233         ahw->max_uc_count = count;
2234 }
2235
2236 static int qlcnic_set_real_num_queues(struct qlcnic_adapter *adapter,
2237                                       u8 tx_queues, u8 rx_queues)
2238 {
2239         struct net_device *netdev = adapter->netdev;
2240         int err = 0;
2241
2242         if (tx_queues) {
2243                 err = netif_set_real_num_tx_queues(netdev, tx_queues);
2244                 if (err) {
2245                         netdev_err(netdev, "failed to set %d Tx queues\n",
2246                                    tx_queues);
2247                         return err;
2248                 }
2249         }
2250
2251         if (rx_queues) {
2252                 err = netif_set_real_num_rx_queues(netdev, rx_queues);
2253                 if (err)
2254                         netdev_err(netdev, "failed to set %d Rx queues\n",
2255                                    rx_queues);
2256         }
2257
2258         return err;
2259 }
2260
2261 int
2262 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
2263                     int pci_using_dac)
2264 {
2265         int err;
2266         struct pci_dev *pdev = adapter->pdev;
2267
2268         adapter->rx_csum = 1;
2269         adapter->ahw->mc_enabled = 0;
2270         qlcnic_set_mac_filter_count(adapter);
2271
2272         netdev->netdev_ops         = &qlcnic_netdev_ops;
2273         netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
2274
2275         qlcnic_change_mtu(netdev, netdev->mtu);
2276
2277         netdev->ethtool_ops = (qlcnic_sriov_vf_check(adapter)) ?
2278                 &qlcnic_sriov_vf_ethtool_ops : &qlcnic_ethtool_ops;
2279
2280         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2281                              NETIF_F_IPV6_CSUM | NETIF_F_GRO |
2282                              NETIF_F_HW_VLAN_CTAG_RX);
2283         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
2284                                   NETIF_F_IPV6_CSUM);
2285
2286         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
2287                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
2288                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
2289         }
2290
2291         if (pci_using_dac) {
2292                 netdev->features |= NETIF_F_HIGHDMA;
2293                 netdev->vlan_features |= NETIF_F_HIGHDMA;
2294         }
2295
2296         if (qlcnic_vlan_tx_check(adapter))
2297                 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
2298
2299         if (qlcnic_sriov_vf_check(adapter))
2300                 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2301
2302         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
2303                 netdev->features |= NETIF_F_LRO;
2304
2305         if (qlcnic_encap_tx_offload(adapter)) {
2306                 netdev->features |= NETIF_F_GSO_UDP_TUNNEL;
2307
2308                 /* encapsulation Tx offload supported by Adapter */
2309                 netdev->hw_enc_features = NETIF_F_IP_CSUM        |
2310                                           NETIF_F_GSO_UDP_TUNNEL |
2311                                           NETIF_F_TSO            |
2312                                           NETIF_F_TSO6;
2313         }
2314
2315         if (qlcnic_encap_rx_offload(adapter))
2316                 netdev->hw_enc_features |= NETIF_F_RXCSUM;
2317
2318         netdev->hw_features = netdev->features;
2319         netdev->priv_flags |= IFF_UNICAST_FLT;
2320         netdev->irq = adapter->msix_entries[0].vector;
2321
2322         err = qlcnic_set_real_num_queues(adapter, adapter->drv_tx_rings,
2323                                          adapter->drv_sds_rings);
2324         if (err)
2325                 return err;
2326
2327         qlcnic_dcb_init_dcbnl_ops(adapter->dcb);
2328
2329         err = register_netdev(netdev);
2330         if (err) {
2331                 dev_err(&pdev->dev, "failed to register net device\n");
2332                 return err;
2333         }
2334
2335         return 0;
2336 }
2337
2338 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
2339 {
2340         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
2341                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
2342                 *pci_using_dac = 1;
2343         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
2344                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
2345                 *pci_using_dac = 0;
2346         else {
2347                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
2348                 return -EIO;
2349         }
2350
2351         return 0;
2352 }
2353
2354 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
2355 {
2356         int ring;
2357         struct qlcnic_host_tx_ring *tx_ring;
2358
2359         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2360                 tx_ring = &adapter->tx_ring[ring];
2361                 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
2362                         vfree(tx_ring->cmd_buf_arr);
2363                         tx_ring->cmd_buf_arr = NULL;
2364                 }
2365         }
2366         if (adapter->tx_ring != NULL)
2367                 kfree(adapter->tx_ring);
2368 }
2369
2370 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
2371                           struct net_device *netdev)
2372 {
2373         int ring, vector, index;
2374         struct qlcnic_host_tx_ring *tx_ring;
2375         struct qlcnic_cmd_buffer *cmd_buf_arr;
2376
2377         tx_ring = kcalloc(adapter->drv_tx_rings,
2378                           sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
2379         if (tx_ring == NULL)
2380                 return -ENOMEM;
2381
2382         adapter->tx_ring = tx_ring;
2383
2384         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2385                 tx_ring = &adapter->tx_ring[ring];
2386                 tx_ring->num_desc = adapter->num_txd;
2387                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
2388                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
2389                 if (cmd_buf_arr == NULL) {
2390                         qlcnic_free_tx_rings(adapter);
2391                         return -ENOMEM;
2392                 }
2393                 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
2394                 tx_ring->cmd_buf_arr = cmd_buf_arr;
2395                 spin_lock_init(&tx_ring->tx_clean_lock);
2396         }
2397
2398         if (qlcnic_83xx_check(adapter) ||
2399             (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
2400                 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2401                         tx_ring = &adapter->tx_ring[ring];
2402                         tx_ring->adapter = adapter;
2403                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
2404                                 index = adapter->drv_sds_rings + ring;
2405                                 vector = adapter->msix_entries[index].vector;
2406                                 tx_ring->irq = vector;
2407                         }
2408                 }
2409         }
2410
2411         return 0;
2412 }
2413
2414 void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
2415 {
2416         struct qlcnic_hardware_context *ahw = adapter->ahw;
2417         u32 fw_cmd = 0;
2418
2419         if (qlcnic_82xx_check(adapter))
2420                 fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
2421         else if (qlcnic_83xx_check(adapter))
2422                 fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
2423
2424         if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER)
2425                 qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
2426 }
2427
2428 /* Reset firmware API lock */
2429 static void qlcnic_reset_api_lock(struct qlcnic_adapter *adapter)
2430 {
2431         qlcnic_api_lock(adapter);
2432         qlcnic_api_unlock(adapter);
2433 }
2434
2435
2436 static int
2437 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2438 {
2439         struct net_device *netdev = NULL;
2440         struct qlcnic_adapter *adapter = NULL;
2441         struct qlcnic_hardware_context *ahw;
2442         int err, pci_using_dac = -1;
2443         char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
2444
2445         err = pci_enable_device(pdev);
2446         if (err)
2447                 return err;
2448
2449         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2450                 err = -ENODEV;
2451                 goto err_out_disable_pdev;
2452         }
2453
2454         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
2455         if (err)
2456                 goto err_out_disable_pdev;
2457
2458         err = pci_request_regions(pdev, qlcnic_driver_name);
2459         if (err)
2460                 goto err_out_disable_pdev;
2461
2462         pci_set_master(pdev);
2463         pci_enable_pcie_error_reporting(pdev);
2464
2465         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2466         if (!ahw) {
2467                 err = -ENOMEM;
2468                 goto err_out_free_res;
2469         }
2470
2471         switch (ent->device) {
2472         case PCI_DEVICE_ID_QLOGIC_QLE824X:
2473                 ahw->hw_ops = &qlcnic_hw_ops;
2474                 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2475                 break;
2476         case PCI_DEVICE_ID_QLOGIC_QLE834X:
2477         case PCI_DEVICE_ID_QLOGIC_QLE844X:
2478                 qlcnic_83xx_register_map(ahw);
2479                 break;
2480         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2481         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2482                 qlcnic_sriov_vf_register_map(ahw);
2483                 break;
2484         default:
2485                 goto err_out_free_hw_res;
2486         }
2487
2488         err = qlcnic_setup_pci_map(pdev, ahw);
2489         if (err)
2490                 goto err_out_free_hw_res;
2491
2492         netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
2493                                    QLCNIC_MAX_TX_RINGS);
2494         if (!netdev) {
2495                 err = -ENOMEM;
2496                 goto err_out_iounmap;
2497         }
2498
2499         SET_NETDEV_DEV(netdev, &pdev->dev);
2500
2501         adapter = netdev_priv(netdev);
2502         adapter->netdev  = netdev;
2503         adapter->pdev    = pdev;
2504         adapter->ahw = ahw;
2505
2506         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2507         if (adapter->qlcnic_wq == NULL) {
2508                 err = -ENOMEM;
2509                 dev_err(&pdev->dev, "Failed to create workqueue\n");
2510                 goto err_out_free_netdev;
2511         }
2512
2513         err = qlcnic_alloc_adapter_resources(adapter);
2514         if (err)
2515                 goto err_out_free_wq;
2516
2517         adapter->dev_rst_time = jiffies;
2518         ahw->revision_id = pdev->revision;
2519         ahw->max_vnic_func = qlcnic_get_vnic_func_count(adapter);
2520         if (qlcnic_mac_learn == FDB_MAC_LEARN)
2521                 adapter->fdb_mac_learn = true;
2522         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2523                 adapter->drv_mac_learn = true;
2524
2525         rwlock_init(&adapter->ahw->crb_lock);
2526         mutex_init(&adapter->ahw->mem_lock);
2527
2528         INIT_LIST_HEAD(&adapter->mac_list);
2529
2530         qlcnic_register_dcb(adapter);
2531
2532         if (qlcnic_82xx_check(adapter)) {
2533                 qlcnic_check_vf(adapter, ent);
2534                 adapter->portnum = adapter->ahw->pci_func;
2535                 qlcnic_reset_api_lock(adapter);
2536                 err = qlcnic_start_firmware(adapter);
2537                 if (err) {
2538                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
2539                                 "\t\tIf reboot doesn't help, try flashing the card\n");
2540                         goto err_out_maintenance_mode;
2541                 }
2542
2543                 /* compute and set default and max tx/sds rings */
2544                 if (adapter->ahw->msix_supported) {
2545                         if (qlcnic_check_multi_tx_capability(adapter) == 1)
2546                                 qlcnic_set_tx_ring_count(adapter,
2547                                                          QLCNIC_SINGLE_RING);
2548                         else
2549                                 qlcnic_set_tx_ring_count(adapter,
2550                                                          QLCNIC_DEF_TX_RINGS);
2551                         qlcnic_set_sds_ring_count(adapter,
2552                                                   QLCNIC_DEF_SDS_RINGS);
2553                 } else {
2554                         qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
2555                         qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
2556                 }
2557
2558                 err = qlcnic_setup_idc_param(adapter);
2559                 if (err)
2560                         goto err_out_free_hw;
2561
2562                 adapter->flags |= QLCNIC_NEED_FLR;
2563
2564         } else if (qlcnic_83xx_check(adapter)) {
2565                 qlcnic_83xx_check_vf(adapter, ent);
2566                 adapter->portnum = adapter->ahw->pci_func;
2567                 err = qlcnic_83xx_init(adapter, pci_using_dac);
2568                 if (err) {
2569                         switch (err) {
2570                         case -ENOTRECOVERABLE:
2571                                 dev_err(&pdev->dev, "Adapter initialization failed due to a faulty hardware\n");
2572                                 dev_err(&pdev->dev, "Please replace the adapter with new one and return the faulty adapter for repair\n");
2573                                 goto err_out_free_hw;
2574                         case -ENOMEM:
2575                                 dev_err(&pdev->dev, "Adapter initialization failed. Please reboot\n");
2576                                 goto err_out_free_hw;
2577                         case -EOPNOTSUPP:
2578                                 dev_err(&pdev->dev, "Adapter initialization failed\n");
2579                                 goto err_out_free_hw;
2580                         default:
2581                                 dev_err(&pdev->dev, "Adapter initialization failed. Driver will load in maintenance mode to recover the adapter using the application\n");
2582                                 goto err_out_maintenance_mode;
2583                         }
2584                 }
2585
2586                 if (qlcnic_sriov_vf_check(adapter))
2587                         return 0;
2588         } else {
2589                 dev_err(&pdev->dev,
2590                         "%s: failed. Please Reboot\n", __func__);
2591                 goto err_out_free_hw;
2592         }
2593
2594         if (qlcnic_read_mac_addr(adapter))
2595                 dev_warn(&pdev->dev, "failed to read mac addr\n");
2596
2597         qlcnic_read_phys_port_id(adapter);
2598
2599         if (adapter->portnum == 0) {
2600                 qlcnic_get_board_name(adapter, board_name);
2601
2602                 pr_info("%s: %s Board Chip rev 0x%x\n",
2603                         module_name(THIS_MODULE),
2604                         board_name, adapter->ahw->revision_id);
2605         }
2606
2607         if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2608             !!qlcnic_use_msi)
2609                 dev_warn(&pdev->dev,
2610                          "Device does not support MSI interrupts\n");
2611
2612         if (qlcnic_82xx_check(adapter)) {
2613                 qlcnic_dcb_enable(adapter->dcb);
2614                 qlcnic_dcb_get_info(adapter->dcb);
2615                 err = qlcnic_setup_intr(adapter);
2616
2617                 if (err) {
2618                         dev_err(&pdev->dev, "Failed to setup interrupt\n");
2619                         goto err_out_disable_msi;
2620                 }
2621         }
2622
2623         err = qlcnic_get_act_pci_func(adapter);
2624         if (err)
2625                 goto err_out_disable_mbx_intr;
2626
2627         if (adapter->portnum == 0)
2628                 qlcnic_set_drv_version(adapter);
2629
2630         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2631         if (err)
2632                 goto err_out_disable_mbx_intr;
2633
2634         pci_set_drvdata(pdev, adapter);
2635
2636         if (qlcnic_82xx_check(adapter))
2637                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2638                                      FW_POLL_DELAY);
2639
2640         switch (adapter->ahw->port_type) {
2641         case QLCNIC_GBE:
2642                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2643                                 adapter->netdev->name);
2644                 break;
2645         case QLCNIC_XGBE:
2646                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2647                                 adapter->netdev->name);
2648                 break;
2649         }
2650
2651         if (adapter->drv_mac_learn)
2652                 qlcnic_alloc_lb_filters_mem(adapter);
2653
2654         qlcnic_add_sysfs(adapter);
2655         qlcnic_register_hwmon_dev(adapter);
2656         return 0;
2657
2658 err_out_disable_mbx_intr:
2659         if (qlcnic_83xx_check(adapter))
2660                 qlcnic_83xx_free_mbx_intr(adapter);
2661
2662 err_out_disable_msi:
2663         qlcnic_teardown_intr(adapter);
2664         qlcnic_cancel_idc_work(adapter);
2665         qlcnic_clr_all_drv_state(adapter, 0);
2666
2667 err_out_free_hw:
2668         qlcnic_free_adapter_resources(adapter);
2669
2670 err_out_free_wq:
2671         destroy_workqueue(adapter->qlcnic_wq);
2672
2673 err_out_free_netdev:
2674         free_netdev(netdev);
2675
2676 err_out_iounmap:
2677         qlcnic_cleanup_pci_map(ahw);
2678
2679 err_out_free_hw_res:
2680         kfree(ahw);
2681
2682 err_out_free_res:
2683         pci_release_regions(pdev);
2684
2685 err_out_disable_pdev:
2686         pci_disable_device(pdev);
2687         return err;
2688
2689 err_out_maintenance_mode:
2690         set_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state);
2691         netdev->netdev_ops = &qlcnic_netdev_failed_ops;
2692         netdev->ethtool_ops = &qlcnic_ethtool_failed_ops;
2693         ahw->port_type = QLCNIC_XGBE;
2694
2695         if (qlcnic_83xx_check(adapter))
2696                 adapter->tgt_status_reg = NULL;
2697         else
2698                 ahw->board_type = QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS;
2699
2700         err = register_netdev(netdev);
2701
2702         if (err) {
2703                 dev_err(&pdev->dev, "Failed to register net device\n");
2704                 qlcnic_clr_all_drv_state(adapter, 0);
2705                 goto err_out_free_hw;
2706         }
2707
2708         pci_set_drvdata(pdev, adapter);
2709         qlcnic_add_sysfs(adapter);
2710
2711         return 0;
2712 }
2713
2714 static void qlcnic_remove(struct pci_dev *pdev)
2715 {
2716         struct qlcnic_adapter *adapter;
2717         struct net_device *netdev;
2718         struct qlcnic_hardware_context *ahw;
2719
2720         adapter = pci_get_drvdata(pdev);
2721         if (adapter == NULL)
2722                 return;
2723
2724         netdev = adapter->netdev;
2725
2726         qlcnic_cancel_idc_work(adapter);
2727         qlcnic_sriov_pf_disable(adapter);
2728         ahw = adapter->ahw;
2729
2730         unregister_netdev(netdev);
2731         qlcnic_sriov_cleanup(adapter);
2732
2733         if (qlcnic_83xx_check(adapter)) {
2734                 qlcnic_83xx_initialize_nic(adapter, 0);
2735                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2736                 qlcnic_83xx_free_mbx_intr(adapter);
2737                 qlcnic_83xx_detach_mailbox_work(adapter);
2738                 qlcnic_83xx_free_mailbox(ahw->mailbox);
2739                 kfree(ahw->fw_info);
2740         }
2741
2742         qlcnic_dcb_free(adapter->dcb);
2743
2744         qlcnic_detach(adapter);
2745
2746         if (adapter->npars != NULL)
2747                 kfree(adapter->npars);
2748         if (adapter->eswitch != NULL)
2749                 kfree(adapter->eswitch);
2750
2751         if (qlcnic_82xx_check(adapter))
2752                 qlcnic_clr_all_drv_state(adapter, 0);
2753
2754         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2755
2756         qlcnic_free_lb_filters_mem(adapter);
2757
2758         qlcnic_teardown_intr(adapter);
2759
2760         qlcnic_remove_sysfs(adapter);
2761
2762         qlcnic_unregister_hwmon_dev(adapter);
2763
2764         qlcnic_cleanup_pci_map(adapter->ahw);
2765
2766         qlcnic_release_firmware(adapter);
2767
2768         pci_disable_pcie_error_reporting(pdev);
2769         pci_release_regions(pdev);
2770         pci_disable_device(pdev);
2771
2772         if (adapter->qlcnic_wq) {
2773                 destroy_workqueue(adapter->qlcnic_wq);
2774                 adapter->qlcnic_wq = NULL;
2775         }
2776
2777         qlcnic_free_adapter_resources(adapter);
2778         kfree(ahw);
2779         free_netdev(netdev);
2780 }
2781
2782 static void qlcnic_shutdown(struct pci_dev *pdev)
2783 {
2784         if (__qlcnic_shutdown(pdev))
2785                 return;
2786
2787         pci_disable_device(pdev);
2788 }
2789
2790 #ifdef CONFIG_PM
2791 static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2792 {
2793         int retval;
2794
2795         retval = __qlcnic_shutdown(pdev);
2796         if (retval)
2797                 return retval;
2798
2799         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2800         return 0;
2801 }
2802
2803 static int qlcnic_resume(struct pci_dev *pdev)
2804 {
2805         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2806         int err;
2807
2808         err = pci_enable_device(pdev);
2809         if (err)
2810                 return err;
2811
2812         pci_set_power_state(pdev, PCI_D0);
2813         pci_set_master(pdev);
2814         pci_restore_state(pdev);
2815
2816         return  __qlcnic_resume(adapter);
2817 }
2818 #endif
2819
2820 static int qlcnic_open(struct net_device *netdev)
2821 {
2822         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2823         int err;
2824
2825         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
2826                 netdev_err(netdev, "%s: Device is in non-operational state\n",
2827                            __func__);
2828
2829                 return -EIO;
2830         }
2831
2832         netif_carrier_off(netdev);
2833
2834         err = qlcnic_attach(adapter);
2835         if (err)
2836                 return err;
2837
2838         err = __qlcnic_up(adapter, netdev);
2839         if (err)
2840                 qlcnic_detach(adapter);
2841
2842         return err;
2843 }
2844
2845 /*
2846  * qlcnic_close - Disables a network interface entry point
2847  */
2848 static int qlcnic_close(struct net_device *netdev)
2849 {
2850         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2851
2852         __qlcnic_down(adapter, netdev);
2853
2854         return 0;
2855 }
2856
2857 #define QLCNIC_VF_LB_BUCKET_SIZE 1
2858
2859 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2860 {
2861         void *head;
2862         int i;
2863         struct net_device *netdev = adapter->netdev;
2864         u32 filter_size = 0;
2865         u16 act_pci_func = 0;
2866
2867         if (adapter->fhash.fmax && adapter->fhash.fhead)
2868                 return;
2869
2870         act_pci_func = adapter->ahw->total_nic_func;
2871         spin_lock_init(&adapter->mac_learn_lock);
2872         spin_lock_init(&adapter->rx_mac_learn_lock);
2873
2874         if (qlcnic_sriov_vf_check(adapter)) {
2875                 filter_size = QLCNIC_83XX_SRIOV_VF_MAX_MAC - 1;
2876                 adapter->fhash.fbucket_size = QLCNIC_VF_LB_BUCKET_SIZE;
2877         } else if (qlcnic_82xx_check(adapter)) {
2878                 filter_size = QLCNIC_LB_MAX_FILTERS;
2879                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2880         } else {
2881                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2882                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2883         }
2884
2885         head = kcalloc(adapter->fhash.fbucket_size,
2886                        sizeof(struct hlist_head), GFP_ATOMIC);
2887
2888         if (!head)
2889                 return;
2890
2891         adapter->fhash.fmax = (filter_size / act_pci_func);
2892         adapter->fhash.fhead = head;
2893
2894         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2895                     act_pci_func, adapter->fhash.fmax);
2896
2897         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2898                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2899
2900         adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2901
2902         head = kcalloc(adapter->rx_fhash.fbucket_size,
2903                        sizeof(struct hlist_head), GFP_ATOMIC);
2904
2905         if (!head)
2906                 return;
2907
2908         adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2909         adapter->rx_fhash.fhead = head;
2910
2911         for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2912                 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2913 }
2914
2915 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2916 {
2917         if (adapter->fhash.fmax && adapter->fhash.fhead)
2918                 kfree(adapter->fhash.fhead);
2919
2920         adapter->fhash.fhead = NULL;
2921         adapter->fhash.fmax = 0;
2922
2923         if (adapter->rx_fhash.fmax && adapter->rx_fhash.fhead)
2924                 kfree(adapter->rx_fhash.fhead);
2925
2926         adapter->rx_fhash.fmax = 0;
2927         adapter->rx_fhash.fhead = NULL;
2928 }
2929
2930 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2931 {
2932         struct net_device *netdev = adapter->netdev;
2933         u32 temp_state, temp_val, temp = 0;
2934         int rv = 0;
2935
2936         if (qlcnic_83xx_check(adapter))
2937                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2938
2939         if (qlcnic_82xx_check(adapter))
2940                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2941
2942         temp_state = qlcnic_get_temp_state(temp);
2943         temp_val = qlcnic_get_temp_val(temp);
2944
2945         if (temp_state == QLCNIC_TEMP_PANIC) {
2946                 dev_err(&netdev->dev,
2947                        "Device temperature %d degrees C exceeds"
2948                        " maximum allowed. Hardware has been shut down.\n",
2949                        temp_val);
2950                 rv = 1;
2951         } else if (temp_state == QLCNIC_TEMP_WARN) {
2952                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2953                         dev_err(&netdev->dev,
2954                                "Device temperature %d degrees C "
2955                                "exceeds operating range."
2956                                " Immediate action needed.\n",
2957                                temp_val);
2958                 }
2959         } else {
2960                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2961                         dev_info(&netdev->dev,
2962                                "Device temperature is now %d degrees C"
2963                                " in normal range.\n", temp_val);
2964                 }
2965         }
2966         adapter->ahw->temp = temp_state;
2967         return rv;
2968 }
2969
2970 static inline void dump_tx_ring_desc(struct qlcnic_host_tx_ring *tx_ring)
2971 {
2972         int i;
2973         struct cmd_desc_type0 *tx_desc_info;
2974
2975         for (i = 0; i < tx_ring->num_desc; i++) {
2976                 tx_desc_info = &tx_ring->desc_head[i];
2977                 pr_info("TX Desc: %d\n", i);
2978                 print_hex_dump(KERN_INFO, "TX: ", DUMP_PREFIX_OFFSET, 16, 1,
2979                                &tx_ring->desc_head[i],
2980                                sizeof(struct cmd_desc_type0), true);
2981         }
2982 }
2983
2984 static void qlcnic_dump_rings(struct qlcnic_adapter *adapter)
2985 {
2986         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2987         struct net_device *netdev = adapter->netdev;
2988         struct qlcnic_host_rds_ring *rds_ring;
2989         struct qlcnic_host_sds_ring *sds_ring;
2990         struct qlcnic_host_tx_ring *tx_ring;
2991         int ring;
2992
2993         if (!netdev || !netif_running(netdev))
2994                 return;
2995
2996         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
2997                 rds_ring = &recv_ctx->rds_rings[ring];
2998                 if (!rds_ring)
2999                         continue;
3000                 netdev_info(netdev,
3001                             "rds_ring=%d crb_rcv_producer=%d producer=%u num_desc=%u\n",
3002                              ring, readl(rds_ring->crb_rcv_producer),
3003                              rds_ring->producer, rds_ring->num_desc);
3004         }
3005
3006         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3007                 sds_ring = &(recv_ctx->sds_rings[ring]);
3008                 if (!sds_ring)
3009                         continue;
3010                 netdev_info(netdev,
3011                             "sds_ring=%d crb_sts_consumer=%d consumer=%u crb_intr_mask=%d num_desc=%u\n",
3012                             ring, readl(sds_ring->crb_sts_consumer),
3013                             sds_ring->consumer, readl(sds_ring->crb_intr_mask),
3014                             sds_ring->num_desc);
3015         }
3016
3017         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3018                 tx_ring = &adapter->tx_ring[ring];
3019                 if (!tx_ring)
3020                         continue;
3021                 netdev_info(netdev, "Tx ring=%d Context Id=0x%x\n",
3022                             ring, tx_ring->ctx_id);
3023                 netdev_info(netdev,
3024                             "xmit_finished=%llu, xmit_called=%llu, xmit_on=%llu, xmit_off=%llu\n",
3025                             tx_ring->tx_stats.xmit_finished,
3026                             tx_ring->tx_stats.xmit_called,
3027                             tx_ring->tx_stats.xmit_on,
3028                             tx_ring->tx_stats.xmit_off);
3029
3030                 if (tx_ring->crb_intr_mask)
3031                         netdev_info(netdev, "crb_intr_mask=%d\n",
3032                                     readl(tx_ring->crb_intr_mask));
3033
3034                 netdev_info(netdev,
3035                             "hw_producer=%d, sw_producer=%d sw_consumer=%d, hw_consumer=%d\n",
3036                             readl(tx_ring->crb_cmd_producer),
3037                             tx_ring->producer, tx_ring->sw_consumer,
3038                             le32_to_cpu(*(tx_ring->hw_consumer)));
3039
3040                 netdev_info(netdev, "Total desc=%d, Available desc=%d\n",
3041                             tx_ring->num_desc, qlcnic_tx_avail(tx_ring));
3042
3043                 if (netif_msg_tx_err(adapter->ahw))
3044                         dump_tx_ring_desc(tx_ring);
3045         }
3046
3047 }
3048
3049 static void qlcnic_tx_timeout(struct net_device *netdev)
3050 {
3051         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3052
3053         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3054                 return;
3055
3056         qlcnic_dump_rings(adapter);
3057
3058         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS ||
3059             netif_msg_tx_err(adapter->ahw)) {
3060                 netdev_err(netdev, "Tx timeout, reset the adapter.\n");
3061                 if (qlcnic_82xx_check(adapter))
3062                         adapter->need_fw_reset = 1;
3063                 else if (qlcnic_83xx_check(adapter))
3064                         qlcnic_83xx_idc_request_reset(adapter,
3065                                                       QLCNIC_FORCE_FW_DUMP_KEY);
3066         } else {
3067                 netdev_err(netdev, "Tx timeout, reset adapter context.\n");
3068                 adapter->ahw->reset_context = 1;
3069         }
3070 }
3071
3072 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
3073 {
3074         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3075         struct net_device_stats *stats = &netdev->stats;
3076
3077         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
3078                 qlcnic_update_stats(adapter);
3079
3080         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
3081         stats->tx_packets = adapter->stats.xmitfinished;
3082         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
3083         stats->tx_bytes = adapter->stats.txbytes;
3084         stats->rx_dropped = adapter->stats.rxdropped;
3085         stats->tx_dropped = adapter->stats.txdropped;
3086
3087         return stats;
3088 }
3089
3090 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
3091 {
3092         u32 status;
3093
3094         status = readl(adapter->isr_int_vec);
3095
3096         if (!(status & adapter->ahw->int_vec_bit))
3097                 return IRQ_NONE;
3098
3099         /* check interrupt state machine, to be sure */
3100         status = readl(adapter->crb_int_state_reg);
3101         if (!ISR_LEGACY_INT_TRIGGERED(status))
3102                 return IRQ_NONE;
3103
3104         writel(0xffffffff, adapter->tgt_status_reg);
3105         /* read twice to ensure write is flushed */
3106         readl(adapter->isr_int_vec);
3107         readl(adapter->isr_int_vec);
3108
3109         return IRQ_HANDLED;
3110 }
3111
3112 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
3113 {
3114         struct qlcnic_host_sds_ring *sds_ring = data;
3115         struct qlcnic_adapter *adapter = sds_ring->adapter;
3116
3117         if (adapter->flags & QLCNIC_MSIX_ENABLED)
3118                 goto done;
3119         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
3120                 writel(0xffffffff, adapter->tgt_status_reg);
3121                 goto done;
3122         }
3123
3124         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3125                 return IRQ_NONE;
3126
3127 done:
3128         adapter->ahw->diag_cnt++;
3129         qlcnic_enable_sds_intr(adapter, sds_ring);
3130         return IRQ_HANDLED;
3131 }
3132
3133 static irqreturn_t qlcnic_intr(int irq, void *data)
3134 {
3135         struct qlcnic_host_sds_ring *sds_ring = data;
3136         struct qlcnic_adapter *adapter = sds_ring->adapter;
3137
3138         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3139                 return IRQ_NONE;
3140
3141         napi_schedule(&sds_ring->napi);
3142
3143         return IRQ_HANDLED;
3144 }
3145
3146 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
3147 {
3148         struct qlcnic_host_sds_ring *sds_ring = data;
3149         struct qlcnic_adapter *adapter = sds_ring->adapter;
3150
3151         /* clear interrupt */
3152         writel(0xffffffff, adapter->tgt_status_reg);
3153
3154         napi_schedule(&sds_ring->napi);
3155         return IRQ_HANDLED;
3156 }
3157
3158 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
3159 {
3160         struct qlcnic_host_sds_ring *sds_ring = data;
3161
3162         napi_schedule(&sds_ring->napi);
3163         return IRQ_HANDLED;
3164 }
3165
3166 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
3167 {
3168         struct qlcnic_host_tx_ring *tx_ring = data;
3169
3170         napi_schedule(&tx_ring->napi);
3171         return IRQ_HANDLED;
3172 }
3173
3174 #ifdef CONFIG_NET_POLL_CONTROLLER
3175 static void qlcnic_poll_controller(struct net_device *netdev)
3176 {
3177         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3178         struct qlcnic_host_sds_ring *sds_ring;
3179         struct qlcnic_recv_context *recv_ctx;
3180         struct qlcnic_host_tx_ring *tx_ring;
3181         int ring;
3182
3183         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3184                 return;
3185
3186         recv_ctx = adapter->recv_ctx;
3187
3188         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3189                 sds_ring = &recv_ctx->sds_rings[ring];
3190                 qlcnic_disable_sds_intr(adapter, sds_ring);
3191                 napi_schedule(&sds_ring->napi);
3192         }
3193
3194         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
3195                 /* Only Multi-Tx queue capable devices need to
3196                  * schedule NAPI for TX rings
3197                  */
3198                 if ((qlcnic_83xx_check(adapter) &&
3199                      (adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
3200                     (qlcnic_82xx_check(adapter) &&
3201                      !qlcnic_check_multi_tx(adapter)))
3202                         return;
3203
3204                 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3205                         tx_ring = &adapter->tx_ring[ring];
3206                         qlcnic_disable_tx_intr(adapter, tx_ring);
3207                         napi_schedule(&tx_ring->napi);
3208                 }
3209         }
3210 }
3211 #endif
3212
3213 static void
3214 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
3215 {
3216         u32 val;
3217
3218         val = adapter->portnum & 0xf;
3219         val |= encoding << 7;
3220         val |= (jiffies - adapter->dev_rst_time) << 8;
3221
3222         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
3223         adapter->dev_rst_time = jiffies;
3224 }
3225
3226 static int
3227 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
3228 {
3229         u32  val;
3230
3231         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
3232                         state != QLCNIC_DEV_NEED_QUISCENT);
3233
3234         if (qlcnic_api_lock(adapter))
3235                 return -EIO;
3236
3237         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3238
3239         if (state == QLCNIC_DEV_NEED_RESET)
3240                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3241         else if (state == QLCNIC_DEV_NEED_QUISCENT)
3242                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
3243
3244         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3245
3246         qlcnic_api_unlock(adapter);
3247
3248         return 0;
3249 }
3250
3251 static int
3252 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
3253 {
3254         u32  val;
3255
3256         if (qlcnic_api_lock(adapter))
3257                 return -EBUSY;
3258
3259         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3260         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3261         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3262
3263         qlcnic_api_unlock(adapter);
3264
3265         return 0;
3266 }
3267
3268 void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
3269 {
3270         u32  val;
3271
3272         if (qlcnic_api_lock(adapter))
3273                 goto err;
3274
3275         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3276         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
3277         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3278
3279         if (failed) {
3280                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3281                                     QLCNIC_DEV_FAILED);
3282                 dev_info(&adapter->pdev->dev,
3283                                 "Device state set to Failed. Please Reboot\n");
3284         } else if (!(val & 0x11111111))
3285                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3286                                     QLCNIC_DEV_COLD);
3287
3288         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3289         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3290         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3291
3292         qlcnic_api_unlock(adapter);
3293 err:
3294         adapter->fw_fail_cnt = 0;
3295         adapter->flags &= ~QLCNIC_FW_HANG;
3296         clear_bit(__QLCNIC_START_FW, &adapter->state);
3297         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3298 }
3299
3300 /* Grab api lock, before checking state */
3301 static int
3302 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
3303 {
3304         int act, state, active_mask;
3305         struct qlcnic_hardware_context *ahw = adapter->ahw;
3306
3307         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3308         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3309
3310         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
3311                 active_mask = (~(1 << (ahw->pci_func * 4)));
3312                 act = act & active_mask;
3313         }
3314
3315         if (((state & 0x11111111) == (act & 0x11111111)) ||
3316                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
3317                 return 0;
3318         else
3319                 return 1;
3320 }
3321
3322 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
3323 {
3324         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
3325
3326         if (val != QLCNIC_DRV_IDC_VER) {
3327                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
3328                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
3329         }
3330
3331         return 0;
3332 }
3333
3334 static int
3335 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
3336 {
3337         u32 val, prev_state;
3338         u8 dev_init_timeo = adapter->dev_init_timeo;
3339         u8 portnum = adapter->portnum;
3340         u8 ret;
3341
3342         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
3343                 return 1;
3344
3345         if (qlcnic_api_lock(adapter))
3346                 return -1;
3347
3348         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3349         if (!(val & (1 << (portnum * 4)))) {
3350                 QLC_DEV_SET_REF_CNT(val, portnum);
3351                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3352         }
3353
3354         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3355         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
3356
3357         switch (prev_state) {
3358         case QLCNIC_DEV_COLD:
3359                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3360                                     QLCNIC_DEV_INITIALIZING);
3361                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
3362                                     QLCNIC_DRV_IDC_VER);
3363                 qlcnic_idc_debug_info(adapter, 0);
3364                 qlcnic_api_unlock(adapter);
3365                 return 1;
3366
3367         case QLCNIC_DEV_READY:
3368                 ret = qlcnic_check_idc_ver(adapter);
3369                 qlcnic_api_unlock(adapter);
3370                 return ret;
3371
3372         case QLCNIC_DEV_NEED_RESET:
3373                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3374                 QLC_DEV_SET_RST_RDY(val, portnum);
3375                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3376                 break;
3377
3378         case QLCNIC_DEV_NEED_QUISCENT:
3379                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3380                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
3381                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3382                 break;
3383
3384         case QLCNIC_DEV_FAILED:
3385                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
3386                 qlcnic_api_unlock(adapter);
3387                 return -1;
3388
3389         case QLCNIC_DEV_INITIALIZING:
3390         case QLCNIC_DEV_QUISCENT:
3391                 break;
3392         }
3393
3394         qlcnic_api_unlock(adapter);
3395
3396         do {
3397                 msleep(1000);
3398                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3399
3400                 if (prev_state == QLCNIC_DEV_QUISCENT)
3401                         continue;
3402         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
3403
3404         if (!dev_init_timeo) {
3405                 dev_err(&adapter->pdev->dev,
3406                         "Waiting for device to initialize timeout\n");
3407                 return -1;
3408         }
3409
3410         if (qlcnic_api_lock(adapter))
3411                 return -1;
3412
3413         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3414         QLC_DEV_CLR_RST_QSCNT(val, portnum);
3415         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3416
3417         ret = qlcnic_check_idc_ver(adapter);
3418         qlcnic_api_unlock(adapter);
3419
3420         return ret;
3421 }
3422
3423 static void
3424 qlcnic_fwinit_work(struct work_struct *work)
3425 {
3426         struct qlcnic_adapter *adapter = container_of(work,
3427                         struct qlcnic_adapter, fw_work.work);
3428         u32 dev_state = 0xf;
3429         u32 val;
3430
3431         if (qlcnic_api_lock(adapter))
3432                 goto err_ret;
3433
3434         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3435         if (dev_state == QLCNIC_DEV_QUISCENT ||
3436             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3437                 qlcnic_api_unlock(adapter);
3438                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
3439                                                 FW_POLL_DELAY * 2);
3440                 return;
3441         }
3442
3443         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
3444                 qlcnic_api_unlock(adapter);
3445                 goto wait_npar;
3446         }
3447
3448         if (dev_state == QLCNIC_DEV_INITIALIZING ||
3449             dev_state == QLCNIC_DEV_READY) {
3450                 dev_info(&adapter->pdev->dev, "Detected state change from "
3451                                 "DEV_NEED_RESET, skipping ack check\n");
3452                 goto skip_ack_check;
3453         }
3454
3455         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
3456                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
3457                                         adapter->reset_ack_timeo);
3458                 goto skip_ack_check;
3459         }
3460
3461         if (!qlcnic_check_drv_state(adapter)) {
3462 skip_ack_check:
3463                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3464
3465                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
3466                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3467                                             QLCNIC_DEV_INITIALIZING);
3468                         set_bit(__QLCNIC_START_FW, &adapter->state);
3469                         QLCDB(adapter, DRV, "Restarting fw\n");
3470                         qlcnic_idc_debug_info(adapter, 0);
3471                         val = QLC_SHARED_REG_RD32(adapter,
3472                                                   QLCNIC_CRB_DRV_STATE);
3473                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3474                         QLC_SHARED_REG_WR32(adapter,
3475                                             QLCNIC_CRB_DRV_STATE, val);
3476                 }
3477
3478                 qlcnic_api_unlock(adapter);
3479
3480                 rtnl_lock();
3481                 if (qlcnic_check_fw_dump_state(adapter) &&
3482                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3483                         QLCDB(adapter, DRV, "Take FW dump\n");
3484                         qlcnic_dump_fw(adapter);
3485                         adapter->flags |= QLCNIC_FW_HANG;
3486                 }
3487                 rtnl_unlock();
3488
3489                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
3490                 if (!adapter->nic_ops->start_firmware(adapter)) {
3491                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3492                         adapter->fw_wait_cnt = 0;
3493                         return;
3494                 }
3495                 goto err_ret;
3496         }
3497
3498         qlcnic_api_unlock(adapter);
3499
3500 wait_npar:
3501         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3502         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
3503
3504         switch (dev_state) {
3505         case QLCNIC_DEV_READY:
3506                 if (!qlcnic_start_firmware(adapter)) {
3507                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3508                         adapter->fw_wait_cnt = 0;
3509                         return;
3510                 }
3511         case QLCNIC_DEV_FAILED:
3512                 break;
3513         default:
3514                 qlcnic_schedule_work(adapter,
3515                         qlcnic_fwinit_work, FW_POLL_DELAY);
3516                 return;
3517         }
3518
3519 err_ret:
3520         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
3521                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
3522         netif_device_attach(adapter->netdev);
3523         qlcnic_clr_all_drv_state(adapter, 0);
3524 }
3525
3526 static void
3527 qlcnic_detach_work(struct work_struct *work)
3528 {
3529         struct qlcnic_adapter *adapter = container_of(work,
3530                         struct qlcnic_adapter, fw_work.work);
3531         struct net_device *netdev = adapter->netdev;
3532         u32 status;
3533
3534         netif_device_detach(netdev);
3535
3536         /* Dont grab rtnl lock during Quiscent mode */
3537         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3538                 if (netif_running(netdev))
3539                         __qlcnic_down(adapter, netdev);
3540         } else
3541                 qlcnic_down(adapter, netdev);
3542
3543         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3544
3545         if (status & QLCNIC_RCODE_FATAL_ERROR) {
3546                 dev_err(&adapter->pdev->dev,
3547                         "Detaching the device: peg halt status1=0x%x\n",
3548                                         status);
3549
3550                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
3551                         dev_err(&adapter->pdev->dev,
3552                         "On board active cooling fan failed. "
3553                                 "Device has been halted.\n");
3554                         dev_err(&adapter->pdev->dev,
3555                                 "Replace the adapter.\n");
3556                 }
3557
3558                 goto err_ret;
3559         }
3560
3561         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
3562                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
3563                         adapter->ahw->temp);
3564                 goto err_ret;
3565         }
3566
3567         /* Dont ack if this instance is the reset owner */
3568         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3569                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
3570                         dev_err(&adapter->pdev->dev,
3571                                 "Failed to set driver state,"
3572                                         "detaching the device.\n");
3573                         goto err_ret;
3574                 }
3575         }
3576
3577         adapter->fw_wait_cnt = 0;
3578
3579         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3580
3581         return;
3582
3583 err_ret:
3584         netif_device_attach(netdev);
3585         qlcnic_clr_all_drv_state(adapter, 1);
3586 }
3587
3588 /*Transit NPAR state to NON Operational */
3589 static void
3590 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3591 {
3592         u32 state;
3593
3594         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3595         if (state == QLCNIC_DEV_NPAR_NON_OPER)
3596                 return;
3597
3598         if (qlcnic_api_lock(adapter))
3599                 return;
3600         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3601                             QLCNIC_DEV_NPAR_NON_OPER);
3602         qlcnic_api_unlock(adapter);
3603 }
3604
3605 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter,
3606                                           u32 key)
3607 {
3608         u32 state, xg_val = 0, gb_val = 0;
3609
3610         qlcnic_xg_set_xg0_mask(xg_val);
3611         qlcnic_xg_set_xg1_mask(xg_val);
3612         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3613         qlcnic_gb_set_gb0_mask(gb_val);
3614         qlcnic_gb_set_gb1_mask(gb_val);
3615         qlcnic_gb_set_gb2_mask(gb_val);
3616         qlcnic_gb_set_gb3_mask(gb_val);
3617         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3618         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3619                                 " on all ports\n");
3620         adapter->need_fw_reset = 1;
3621
3622         if (qlcnic_api_lock(adapter))
3623                 return;
3624
3625         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3626
3627         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
3628                 netdev_err(adapter->netdev, "%s: Device is in non-operational state\n",
3629                            __func__);
3630                 qlcnic_api_unlock(adapter);
3631
3632                 return;
3633         }
3634
3635         if (state == QLCNIC_DEV_READY) {
3636                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3637                                     QLCNIC_DEV_NEED_RESET);
3638                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3639                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3640                 qlcnic_idc_debug_info(adapter, 0);
3641         }
3642
3643         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3644                             QLCNIC_DEV_NPAR_NON_OPER);
3645         qlcnic_api_unlock(adapter);
3646 }
3647
3648 /* Transit to NPAR READY state from NPAR NOT READY state */
3649 static void
3650 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3651 {
3652         if (qlcnic_api_lock(adapter))
3653                 return;
3654
3655         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3656                             QLCNIC_DEV_NPAR_OPER);
3657         QLCDB(adapter, DRV, "NPAR operational state set\n");
3658
3659         qlcnic_api_unlock(adapter);
3660 }
3661
3662 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3663                           work_func_t func, int delay)
3664 {
3665         if (test_bit(__QLCNIC_AER, &adapter->state))
3666                 return;
3667
3668         INIT_DELAYED_WORK(&adapter->fw_work, func);
3669         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3670                            round_jiffies_relative(delay));
3671 }
3672
3673 static void
3674 qlcnic_attach_work(struct work_struct *work)
3675 {
3676         struct qlcnic_adapter *adapter = container_of(work,
3677                                 struct qlcnic_adapter, fw_work.work);
3678         struct net_device *netdev = adapter->netdev;
3679         u32 npar_state;
3680
3681         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3682                 npar_state = QLC_SHARED_REG_RD32(adapter,
3683                                                  QLCNIC_CRB_DEV_NPAR_STATE);
3684                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3685                         qlcnic_clr_all_drv_state(adapter, 0);
3686                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3687                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
3688                                                         FW_POLL_DELAY);
3689                 else
3690                         goto attach;
3691                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3692                 return;
3693         }
3694 attach:
3695         qlcnic_dcb_get_info(adapter->dcb);
3696
3697         if (netif_running(netdev)) {
3698                 if (qlcnic_up(adapter, netdev))
3699                         goto done;
3700
3701                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3702         }
3703
3704 done:
3705         netif_device_attach(netdev);
3706         adapter->fw_fail_cnt = 0;
3707         adapter->flags &= ~QLCNIC_FW_HANG;
3708         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3709         if (adapter->portnum == 0)
3710                 qlcnic_set_drv_version(adapter);
3711
3712         if (!qlcnic_clr_drv_state(adapter))
3713                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3714                                                         FW_POLL_DELAY);
3715 }
3716
3717 static int
3718 qlcnic_check_health(struct qlcnic_adapter *adapter)
3719 {
3720         struct qlcnic_hardware_context *ahw = adapter->ahw;
3721         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
3722         u32 state = 0, heartbeat;
3723         u32 peg_status;
3724         int err = 0;
3725
3726         if (qlcnic_check_temp(adapter))
3727                 goto detach;
3728
3729         if (adapter->need_fw_reset)
3730                 qlcnic_dev_request_reset(adapter, 0);
3731
3732         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3733         if (state == QLCNIC_DEV_NEED_RESET) {
3734                 qlcnic_set_npar_non_operational(adapter);
3735                 adapter->need_fw_reset = 1;
3736         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3737                 goto detach;
3738
3739         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3740         if (heartbeat != adapter->heartbeat) {
3741                 adapter->heartbeat = heartbeat;
3742                 adapter->fw_fail_cnt = 0;
3743                 if (adapter->need_fw_reset)
3744                         goto detach;
3745
3746                 if (ahw->reset_context && qlcnic_auto_fw_reset)
3747                         qlcnic_reset_hw_context(adapter);
3748
3749                 return 0;
3750         }
3751
3752         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3753                 return 0;
3754
3755         adapter->flags |= QLCNIC_FW_HANG;
3756
3757         qlcnic_dev_request_reset(adapter, 0);
3758
3759         if (qlcnic_auto_fw_reset)
3760                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3761
3762         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3763         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3764         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3765                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3766                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3767                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3768                         "PEG_NET_4_PC: 0x%x\n",
3769                         peg_status,
3770                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3771                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3772                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3773                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3774                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3775                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3776         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3777                 dev_err(&adapter->pdev->dev,
3778                         "Firmware aborted with error code 0x00006700. "
3779                                 "Device is being reset.\n");
3780 detach:
3781         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3782                 QLCNIC_DEV_NEED_RESET;
3783
3784         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3785                                                       &adapter->state)) {
3786
3787                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3788                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3789         } else if (!qlcnic_auto_fw_reset && fw_dump->enable &&
3790                    adapter->flags & QLCNIC_FW_RESET_OWNER) {
3791                 qlcnic_dump_fw(adapter);
3792         }
3793
3794         return 1;
3795 }
3796
3797 void qlcnic_fw_poll_work(struct work_struct *work)
3798 {
3799         struct qlcnic_adapter *adapter = container_of(work,
3800                                 struct qlcnic_adapter, fw_work.work);
3801
3802         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3803                 goto reschedule;
3804
3805
3806         if (qlcnic_check_health(adapter))
3807                 return;
3808
3809         if (adapter->fhash.fnum)
3810                 qlcnic_prune_lb_filters(adapter);
3811
3812 reschedule:
3813         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3814 }
3815
3816 static int qlcnic_is_first_func(struct pci_dev *pdev)
3817 {
3818         struct pci_dev *oth_pdev;
3819         int val = pdev->devfn;
3820
3821         while (val-- > 0) {
3822                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3823                         (pdev->bus), pdev->bus->number,
3824                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3825                 if (!oth_pdev)
3826                         continue;
3827
3828                 if (oth_pdev->current_state != PCI_D3cold) {
3829                         pci_dev_put(oth_pdev);
3830                         return 0;
3831                 }
3832                 pci_dev_put(oth_pdev);
3833         }
3834         return 1;
3835 }
3836
3837 static int qlcnic_attach_func(struct pci_dev *pdev)
3838 {
3839         int err, first_func;
3840         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3841         struct net_device *netdev = adapter->netdev;
3842
3843         pdev->error_state = pci_channel_io_normal;
3844
3845         err = pci_enable_device(pdev);
3846         if (err)
3847                 return err;
3848
3849         pci_set_master(pdev);
3850         pci_restore_state(pdev);
3851
3852         first_func = qlcnic_is_first_func(pdev);
3853
3854         if (qlcnic_api_lock(adapter))
3855                 return -EINVAL;
3856
3857         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3858                 adapter->need_fw_reset = 1;
3859                 set_bit(__QLCNIC_START_FW, &adapter->state);
3860                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3861                                     QLCNIC_DEV_INITIALIZING);
3862                 QLCDB(adapter, DRV, "Restarting fw\n");
3863         }
3864         qlcnic_api_unlock(adapter);
3865
3866         err = qlcnic_start_firmware(adapter);
3867         if (err)
3868                 return err;
3869
3870         qlcnic_clr_drv_state(adapter);
3871         kfree(adapter->msix_entries);
3872         adapter->msix_entries = NULL;
3873         err = qlcnic_setup_intr(adapter);
3874
3875         if (err) {
3876                 kfree(adapter->msix_entries);
3877                 netdev_err(netdev, "failed to setup interrupt\n");
3878                 return err;
3879         }
3880
3881         if (netif_running(netdev)) {
3882                 err = qlcnic_attach(adapter);
3883                 if (err) {
3884                         qlcnic_clr_all_drv_state(adapter, 1);
3885                         clear_bit(__QLCNIC_AER, &adapter->state);
3886                         netif_device_attach(netdev);
3887                         return err;
3888                 }
3889
3890                 err = qlcnic_up(adapter, netdev);
3891                 if (err)
3892                         goto done;
3893
3894                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3895         }
3896  done:
3897         netif_device_attach(netdev);
3898         return err;
3899 }
3900
3901 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
3902                                                       pci_channel_state_t state)
3903 {
3904         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3905         struct net_device *netdev = adapter->netdev;
3906
3907         if (state == pci_channel_io_perm_failure)
3908                 return PCI_ERS_RESULT_DISCONNECT;
3909
3910         if (state == pci_channel_io_normal)
3911                 return PCI_ERS_RESULT_RECOVERED;
3912
3913         set_bit(__QLCNIC_AER, &adapter->state);
3914         netif_device_detach(netdev);
3915
3916         cancel_delayed_work_sync(&adapter->fw_work);
3917
3918         if (netif_running(netdev))
3919                 qlcnic_down(adapter, netdev);
3920
3921         qlcnic_detach(adapter);
3922         qlcnic_teardown_intr(adapter);
3923
3924         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3925
3926         pci_save_state(pdev);
3927         pci_disable_device(pdev);
3928
3929         return PCI_ERS_RESULT_NEED_RESET;
3930 }
3931
3932 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
3933 {
3934         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3935                                 PCI_ERS_RESULT_RECOVERED;
3936 }
3937
3938 static void qlcnic_82xx_io_resume(struct pci_dev *pdev)
3939 {
3940         u32 state;
3941         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3942
3943         pci_cleanup_aer_uncorrect_error_status(pdev);
3944         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3945         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3946                                                             &adapter->state))
3947                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3948                                      FW_POLL_DELAY);
3949 }
3950
3951 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3952                                                  pci_channel_state_t state)
3953 {
3954         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3955         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3956
3957         if (hw_ops->io_error_detected) {
3958                 return hw_ops->io_error_detected(pdev, state);
3959         } else {
3960                 dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
3961                 return PCI_ERS_RESULT_DISCONNECT;
3962         }
3963 }
3964
3965 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3966 {
3967         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3968         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3969
3970         if (hw_ops->io_slot_reset) {
3971                 return hw_ops->io_slot_reset(pdev);
3972         } else {
3973                 dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
3974                 return PCI_ERS_RESULT_DISCONNECT;
3975         }
3976 }
3977
3978 static void qlcnic_io_resume(struct pci_dev *pdev)
3979 {
3980         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3981         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3982
3983         if (hw_ops->io_resume)
3984                 hw_ops->io_resume(pdev);
3985         else
3986                 dev_err(&pdev->dev, "AER resume handler not registered.\n");
3987 }
3988
3989
3990 static int
3991 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3992 {
3993         int err;
3994
3995         err = qlcnic_can_start_firmware(adapter);
3996         if (err)
3997                 return err;
3998
3999         err = qlcnic_check_npar_opertional(adapter);
4000         if (err)
4001                 return err;
4002
4003         err = qlcnic_initialize_nic(adapter);
4004         if (err)
4005                 return err;
4006
4007         qlcnic_check_options(adapter);
4008
4009         err = qlcnic_set_eswitch_port_config(adapter);
4010         if (err)
4011                 return err;
4012
4013         adapter->need_fw_reset = 0;
4014
4015         return err;
4016 }
4017
4018 int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt,
4019                           int queue_type)
4020 {
4021         struct net_device *netdev = adapter->netdev;
4022         u8 max_hw_rings = 0;
4023         char buf[8];
4024         int cur_rings;
4025
4026         if (queue_type == QLCNIC_RX_QUEUE) {
4027                 max_hw_rings = adapter->max_sds_rings;
4028                 cur_rings = adapter->drv_sds_rings;
4029                 strcpy(buf, "SDS");
4030         } else if (queue_type == QLCNIC_TX_QUEUE) {
4031                 max_hw_rings = adapter->max_tx_rings;
4032                 cur_rings = adapter->drv_tx_rings;
4033                 strcpy(buf, "Tx");
4034         }
4035
4036         if (!is_power_of_2(ring_cnt)) {
4037                 netdev_err(netdev, "%s rings value should be a power of 2\n",
4038                            buf);
4039                 return -EINVAL;
4040         }
4041
4042         if (qlcnic_82xx_check(adapter) && (queue_type == QLCNIC_TX_QUEUE) &&
4043             !qlcnic_check_multi_tx(adapter)) {
4044                         netdev_err(netdev, "No Multi Tx queue support\n");
4045                         return -EINVAL;
4046         }
4047
4048         if (ring_cnt > num_online_cpus()) {
4049                 netdev_err(netdev,
4050                            "%s value[%u] should not be higher than, number of online CPUs\n",
4051                            buf, num_online_cpus());
4052                 return -EINVAL;
4053         }
4054
4055         return 0;
4056 }
4057
4058 int qlcnic_setup_rings(struct qlcnic_adapter *adapter)
4059 {
4060         struct net_device *netdev = adapter->netdev;
4061         u8 tx_rings, rx_rings;
4062         int err;
4063
4064         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
4065                 return -EBUSY;
4066
4067         tx_rings = adapter->drv_tss_rings;
4068         rx_rings = adapter->drv_rss_rings;
4069
4070         netif_device_detach(netdev);
4071
4072         err = qlcnic_set_real_num_queues(adapter, tx_rings, rx_rings);
4073         if (err)
4074                 goto done;
4075
4076         if (netif_running(netdev))
4077                 __qlcnic_down(adapter, netdev);
4078
4079         qlcnic_detach(adapter);
4080
4081         if (qlcnic_83xx_check(adapter)) {
4082                 qlcnic_83xx_free_mbx_intr(adapter);
4083                 qlcnic_83xx_enable_mbx_poll(adapter);
4084         }
4085
4086         qlcnic_teardown_intr(adapter);
4087
4088         err = qlcnic_setup_intr(adapter);
4089         if (err) {
4090                 kfree(adapter->msix_entries);
4091                 netdev_err(netdev, "failed to setup interrupt\n");
4092                 return err;
4093         }
4094
4095         /* Check if we need to update real_num_{tx|rx}_queues because
4096          * qlcnic_setup_intr() may change Tx/Rx rings size
4097          */
4098         if ((tx_rings != adapter->drv_tx_rings) ||
4099             (rx_rings != adapter->drv_sds_rings)) {
4100                 err = qlcnic_set_real_num_queues(adapter,
4101                                                  adapter->drv_tx_rings,
4102                                                  adapter->drv_sds_rings);
4103                 if (err)
4104                         goto done;
4105         }
4106
4107         if (qlcnic_83xx_check(adapter)) {
4108                 qlcnic_83xx_initialize_nic(adapter, 1);
4109                 err = qlcnic_83xx_setup_mbx_intr(adapter);
4110                 qlcnic_83xx_disable_mbx_poll(adapter);
4111                 if (err) {
4112                         dev_err(&adapter->pdev->dev,
4113                                 "failed to setup mbx interrupt\n");
4114                         goto done;
4115                 }
4116         }
4117
4118         if (netif_running(netdev)) {
4119                 err = qlcnic_attach(adapter);
4120                 if (err)
4121                         goto done;
4122                 err = __qlcnic_up(adapter, netdev);
4123                 if (err)
4124                         goto done;
4125                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
4126         }
4127 done:
4128         netif_device_attach(netdev);
4129         clear_bit(__QLCNIC_RESETTING, &adapter->state);
4130         return err;
4131 }
4132
4133 #ifdef CONFIG_INET
4134
4135 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4136
4137 static void
4138 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4139                         struct net_device *dev, unsigned long event)
4140 {
4141         struct in_device *indev;
4142
4143         indev = in_dev_get(dev);
4144         if (!indev)
4145                 return;
4146
4147         for_ifa(indev) {
4148                 switch (event) {
4149                 case NETDEV_UP:
4150                         qlcnic_config_ipaddr(adapter,
4151                                         ifa->ifa_address, QLCNIC_IP_UP);
4152                         break;
4153                 case NETDEV_DOWN:
4154                         qlcnic_config_ipaddr(adapter,
4155                                         ifa->ifa_address, QLCNIC_IP_DOWN);
4156                         break;
4157                 default:
4158                         break;
4159                 }
4160         } endfor_ifa(indev);
4161
4162         in_dev_put(indev);
4163 }
4164
4165 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4166 {
4167         struct qlcnic_adapter *adapter = netdev_priv(netdev);
4168         struct net_device *dev;
4169         u16 vid;
4170
4171         qlcnic_config_indev_addr(adapter, netdev, event);
4172
4173         rcu_read_lock();
4174         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
4175                 dev = __vlan_find_dev_deep_rcu(netdev, htons(ETH_P_8021Q), vid);
4176                 if (!dev)
4177                         continue;
4178                 qlcnic_config_indev_addr(adapter, dev, event);
4179         }
4180         rcu_read_unlock();
4181 }
4182
4183 static int qlcnic_netdev_event(struct notifier_block *this,
4184                                  unsigned long event, void *ptr)
4185 {
4186         struct qlcnic_adapter *adapter;
4187         struct net_device *dev = netdev_notifier_info_to_dev(ptr);
4188
4189 recheck:
4190         if (dev == NULL)
4191                 goto done;
4192
4193         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4194                 dev = vlan_dev_real_dev(dev);
4195                 goto recheck;
4196         }
4197
4198         if (!is_qlcnic_netdev(dev))
4199                 goto done;
4200
4201         adapter = netdev_priv(dev);
4202
4203         if (!adapter)
4204                 goto done;
4205
4206         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4207                 goto done;
4208
4209         qlcnic_config_indev_addr(adapter, dev, event);
4210 done:
4211         return NOTIFY_DONE;
4212 }
4213
4214 static int
4215 qlcnic_inetaddr_event(struct notifier_block *this,
4216                 unsigned long event, void *ptr)
4217 {
4218         struct qlcnic_adapter *adapter;
4219         struct net_device *dev;
4220
4221         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4222
4223         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4224
4225 recheck:
4226         if (dev == NULL)
4227                 goto done;
4228
4229         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4230                 dev = vlan_dev_real_dev(dev);
4231                 goto recheck;
4232         }
4233
4234         if (!is_qlcnic_netdev(dev))
4235                 goto done;
4236
4237         adapter = netdev_priv(dev);
4238
4239         if (!adapter)
4240                 goto done;
4241
4242         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4243                 goto done;
4244
4245         switch (event) {
4246         case NETDEV_UP:
4247                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4248
4249                 break;
4250         case NETDEV_DOWN:
4251                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4252
4253                 break;
4254         default:
4255                 break;
4256         }
4257
4258 done:
4259         return NOTIFY_DONE;
4260 }
4261
4262 static struct notifier_block    qlcnic_netdev_cb = {
4263         .notifier_call = qlcnic_netdev_event,
4264 };
4265
4266 static struct notifier_block qlcnic_inetaddr_cb = {
4267         .notifier_call = qlcnic_inetaddr_event,
4268 };
4269 #else
4270 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4271 { }
4272 #endif
4273 static const struct pci_error_handlers qlcnic_err_handler = {
4274         .error_detected = qlcnic_io_error_detected,
4275         .slot_reset = qlcnic_io_slot_reset,
4276         .resume = qlcnic_io_resume,
4277 };
4278
4279 static struct pci_driver qlcnic_driver = {
4280         .name = qlcnic_driver_name,
4281         .id_table = qlcnic_pci_tbl,
4282         .probe = qlcnic_probe,
4283         .remove = qlcnic_remove,
4284 #ifdef CONFIG_PM
4285         .suspend = qlcnic_suspend,
4286         .resume = qlcnic_resume,
4287 #endif
4288         .shutdown = qlcnic_shutdown,
4289         .err_handler = &qlcnic_err_handler,
4290 #ifdef CONFIG_QLCNIC_SRIOV
4291         .sriov_configure = qlcnic_pci_sriov_configure,
4292 #endif
4293
4294 };
4295
4296 static int __init qlcnic_init_module(void)
4297 {
4298         int ret;
4299
4300         printk(KERN_INFO "%s\n", qlcnic_driver_string);
4301
4302 #ifdef CONFIG_INET
4303         register_netdevice_notifier(&qlcnic_netdev_cb);
4304         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4305 #endif
4306
4307         ret = pci_register_driver(&qlcnic_driver);
4308         if (ret) {
4309 #ifdef CONFIG_INET
4310                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4311                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4312 #endif
4313         }
4314
4315         return ret;
4316 }
4317
4318 module_init(qlcnic_init_module);
4319
4320 static void __exit qlcnic_exit_module(void)
4321 {
4322         pci_unregister_driver(&qlcnic_driver);
4323
4324 #ifdef CONFIG_INET
4325         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4326         unregister_netdevice_notifier(&qlcnic_netdev_cb);
4327 #endif
4328 }
4329
4330 module_exit(qlcnic_exit_module);