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 #include <linux/swab.h>
  11 #include <linux/dma-mapping.h>
  12 #include <linux/if_vlan.h>
  13 #include <net/ip.h>
  14 #include <linux/ipv6.h>
  15 #include <linux/inetdevice.h>
  16 #include <linux/aer.h>
  17 #include <linux/log2.h>
  18 #include <linux/pci.h>
  19 #include <net/vxlan.h>
  20
  21 #include "qlcnic.h"
  22 #include "qlcnic_sriov.h"
  23 #include "qlcnic_hw.h"
  24
  25 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
  26 MODULE_LICENSE("GPL");
  27 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
  28 /*(DEBLOBBED)*/
  29
  30 char qlcnic_driver_name[] = "qlcnic";
  31 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
  32         "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
  33
  34 static int qlcnic_mac_learn;
  35 module_param(qlcnic_mac_learn, int, 0444);
  36 MODULE_PARM_DESC(qlcnic_mac_learn,
  37                  "Mac Filter (0=learning is disabled, 1=Driver learning is enabled, 2=FDB learning is enabled)");
  38
  39 int qlcnic_use_msi = 1;
  40 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled)");
  41 module_param_named(use_msi, qlcnic_use_msi, int, 0444);
  42
  43 int qlcnic_use_msi_x = 1;
  44 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled)");
  45 module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444);
  46
  47 int qlcnic_auto_fw_reset = 1;
  48 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled)");
  49 module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644);
  50
  51 int qlcnic_load_fw_file;
  52 MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file, 2=POST in fast mode, 3= POST in medium mode, 4=POST in slow mode)");
  53 module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);
  54
  55 static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
  56 static void qlcnic_remove(struct pci_dev *pdev);
  57 static int qlcnic_open(struct net_device *netdev);
  58 static int qlcnic_close(struct net_device *netdev);
  59 static void qlcnic_tx_timeout(struct net_device *netdev);
  60 static void qlcnic_attach_work(struct work_struct *work);
  61 static void qlcnic_fwinit_work(struct work_struct *work);
  62
  63 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
  64 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
  65
  66 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
  67 static irqreturn_t qlcnic_intr(int irq, void *data);
  68 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
  69 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
  70 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data);
  71
  72 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
  73 static int qlcnic_start_firmware(struct qlcnic_adapter *);
  74
  75 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
  76 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
  77 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
  78 static int qlcnic_vlan_rx_add(struct net_device *, __be16, u16);
  79 static int qlcnic_vlan_rx_del(struct net_device *, __be16, u16);
  80
  81 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *);
  82 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *, u32);
  83 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *);
  84 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *);
  85 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *);
  86 static void qlcnic_82xx_io_resume(struct pci_dev *);
  87 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *);
  88 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *,
  89                                                       pci_channel_state_t);
  90 static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
  91 {
  92         struct qlcnic_hardware_context *ahw = adapter->ahw;
  93
  94         if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
  95                 return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
  96         else
  97                 return 1;
  98 }
  99
 100 /*  PCI Device ID Table  */
 101 #define ENTRY(device) \
 102         {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
 103         .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
 104
 105 static const struct pci_device_id qlcnic_pci_tbl[] = {
 106         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
 107         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
 108         ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE834X),
 109         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE8830),
 110         ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE8C30),
 111         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE844X),
 112         ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE844X),
 113         {0,}
 114 };
 115
 116 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
 117
 118
 119 inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
 120 {
 121         writel(tx_ring->producer, tx_ring->crb_cmd_producer);
 122 }
 123
 124 static const u32 msi_tgt_status[8] = {
 125         ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
 126         ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
 127         ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
 128         ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
 129 };
 130
 131 static const u32 qlcnic_reg_tbl[] = {
 132         0x1B20A8,       /* PEG_HALT_STAT1 */
 133         0x1B20AC,       /* PEG_HALT_STAT2 */
 134         0x1B20B0,       /* FW_HEARTBEAT */
 135         0x1B2100,       /* LOCK ID */
 136         0x1B2128,       /* FW_CAPABILITIES */
 137         0x1B2138,       /* drv active */
 138         0x1B2140,       /* dev state */
 139         0x1B2144,       /* drv state */
 140         0x1B2148,       /* drv scratch */
 141         0x1B214C,       /* dev partition info */
 142         0x1B2174,       /* drv idc ver */
 143         0x1B2150,       /* fw version major */
 144         0x1B2154,       /* fw version minor */
 145         0x1B2158,       /* fw version sub */
 146         0x1B219C,       /* npar state */
 147         0x1B21FC,       /* FW_IMG_VALID */
 148         0x1B2250,       /* CMD_PEG_STATE */
 149         0x1B233C,       /* RCV_PEG_STATE */
 150         0x1B23B4,       /* ASIC TEMP */
 151         0x1B216C,       /* FW api */
 152         0x1B2170,       /* drv op mode */
 153         0x13C010,       /* flash lock */
 154         0x13C014,       /* flash unlock */
 155 };
 156
 157 static const struct qlcnic_board_info qlcnic_boards[] = {
 158         { PCI_VENDOR_ID_QLOGIC,
 159           PCI_DEVICE_ID_QLOGIC_QLE844X,
 160           0x0,
 161           0x0,
 162           "8400 series 10GbE Converged Network Adapter (TCP/IP Networking)" },
 163         { PCI_VENDOR_ID_QLOGIC,
 164           PCI_DEVICE_ID_QLOGIC_QLE834X,
 165           PCI_VENDOR_ID_QLOGIC,
 166           0x24e,
 167           "8300 Series Dual Port 10GbE Converged Network Adapter "
 168           "(TCP/IP Networking)" },
 169         { PCI_VENDOR_ID_QLOGIC,
 170           PCI_DEVICE_ID_QLOGIC_QLE834X,
 171           PCI_VENDOR_ID_QLOGIC,
 172           0x243,
 173           "8300 Series Single Port 10GbE Converged Network Adapter "
 174           "(TCP/IP Networking)" },
 175         { PCI_VENDOR_ID_QLOGIC,
 176           PCI_DEVICE_ID_QLOGIC_QLE834X,
 177           PCI_VENDOR_ID_QLOGIC,
 178           0x24a,
 179           "8300 Series Dual Port 10GbE Converged Network Adapter "
 180           "(TCP/IP Networking)" },
 181         { PCI_VENDOR_ID_QLOGIC,
 182           PCI_DEVICE_ID_QLOGIC_QLE834X,
 183           PCI_VENDOR_ID_QLOGIC,
 184           0x246,
 185           "8300 Series Dual Port 10GbE Converged Network Adapter "
 186           "(TCP/IP Networking)" },
 187         { PCI_VENDOR_ID_QLOGIC,
 188           PCI_DEVICE_ID_QLOGIC_QLE834X,
 189           PCI_VENDOR_ID_QLOGIC,
 190           0x252,
 191           "8300 Series Dual Port 10GbE Converged Network Adapter "
 192           "(TCP/IP Networking)" },
 193         { PCI_VENDOR_ID_QLOGIC,
 194           PCI_DEVICE_ID_QLOGIC_QLE834X,
 195           PCI_VENDOR_ID_QLOGIC,
 196           0x26e,
 197           "8300 Series Dual Port 10GbE Converged Network Adapter "
 198           "(TCP/IP Networking)" },
 199         { PCI_VENDOR_ID_QLOGIC,
 200           PCI_DEVICE_ID_QLOGIC_QLE834X,
 201           PCI_VENDOR_ID_QLOGIC,
 202           0x260,
 203           "8300 Series Dual Port 10GbE Converged Network Adapter "
 204           "(TCP/IP Networking)" },
 205         { PCI_VENDOR_ID_QLOGIC,
 206           PCI_DEVICE_ID_QLOGIC_QLE834X,
 207           PCI_VENDOR_ID_QLOGIC,
 208           0x266,
 209           "8300 Series Single Port 10GbE Converged Network Adapter "
 210           "(TCP/IP Networking)" },
 211         { PCI_VENDOR_ID_QLOGIC,
 212           PCI_DEVICE_ID_QLOGIC_QLE834X,
 213           PCI_VENDOR_ID_QLOGIC,
 214           0x269,
 215           "8300 Series Dual Port 10GbE Converged Network Adapter "
 216           "(TCP/IP Networking)" },
 217         { PCI_VENDOR_ID_QLOGIC,
 218           PCI_DEVICE_ID_QLOGIC_QLE834X,
 219           PCI_VENDOR_ID_QLOGIC,
 220           0x271,
 221           "8300 Series Dual Port 10GbE Converged Network Adapter "
 222           "(TCP/IP Networking)" },
 223         { PCI_VENDOR_ID_QLOGIC,
 224           PCI_DEVICE_ID_QLOGIC_QLE834X,
 225           0x0, 0x0, "8300 Series 1/10GbE Controller" },
 226         { PCI_VENDOR_ID_QLOGIC,
 227           PCI_DEVICE_ID_QLOGIC_QLE8830,
 228           0x0,
 229           0x0,
 230           "8830 Series 1/10GbE Controller" },
 231         { PCI_VENDOR_ID_QLOGIC,
 232           PCI_DEVICE_ID_QLOGIC_QLE824X,
 233           PCI_VENDOR_ID_QLOGIC,
 234           0x203,
 235           "8200 Series Single Port 10GbE Converged Network Adapter"
 236           "(TCP/IP Networking)" },
 237         { PCI_VENDOR_ID_QLOGIC,
 238           PCI_DEVICE_ID_QLOGIC_QLE824X,
 239           PCI_VENDOR_ID_QLOGIC,
 240           0x207,
 241           "8200 Series Dual Port 10GbE Converged Network Adapter"
 242           "(TCP/IP Networking)" },
 243         { PCI_VENDOR_ID_QLOGIC,
 244           PCI_DEVICE_ID_QLOGIC_QLE824X,
 245           PCI_VENDOR_ID_QLOGIC,
 246           0x20b,
 247           "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter" },
 248         { PCI_VENDOR_ID_QLOGIC,
 249           PCI_DEVICE_ID_QLOGIC_QLE824X,
 250           PCI_VENDOR_ID_QLOGIC,
 251           0x20c,
 252           "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter" },
 253         { PCI_VENDOR_ID_QLOGIC,
 254           PCI_DEVICE_ID_QLOGIC_QLE824X,
 255           PCI_VENDOR_ID_QLOGIC,
 256           0x20f,
 257           "3200 Series Single Port 10Gb Intelligent Ethernet Adapter" },
 258         { PCI_VENDOR_ID_QLOGIC,
 259           PCI_DEVICE_ID_QLOGIC_QLE824X,
 260           0x103c, 0x3733,
 261           "NC523SFP 10Gb 2-port Server Adapter" },
 262         { PCI_VENDOR_ID_QLOGIC,
 263           PCI_DEVICE_ID_QLOGIC_QLE824X,
 264           0x103c, 0x3346,
 265           "CN1000Q Dual Port Converged Network Adapter" },
 266         { PCI_VENDOR_ID_QLOGIC,
 267           PCI_DEVICE_ID_QLOGIC_QLE824X,
 268           PCI_VENDOR_ID_QLOGIC,
 269           0x210,
 270           "QME8242-k 10GbE Dual Port Mezzanine Card" },
 271         { PCI_VENDOR_ID_QLOGIC,
 272           PCI_DEVICE_ID_QLOGIC_QLE824X,
 273           0x0, 0x0, "cLOM8214 1/10GbE Controller" },
 274 };
 275
 276 #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)
 277
 278 static const
 279 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
 280
 281 int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
 282 {
 283         int size = sizeof(struct qlcnic_host_sds_ring) * count;
 284
 285         recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
 286
 287         return recv_ctx->sds_rings == NULL;
 288 }
 289
 290 void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
 291 {
 292         kfree(recv_ctx->sds_rings);
 293         recv_ctx->sds_rings = NULL;
 294 }
 295
 296 int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
 297 {
 298         struct net_device *netdev = adapter->netdev;
 299         struct pci_dev *pdev = adapter->pdev;
 300         u8 mac_addr[ETH_ALEN];
 301         int ret;
 302
 303         ret = qlcnic_get_mac_address(adapter, mac_addr,
 304                                      adapter->ahw->pci_func);
 305         if (ret)
 306                 return ret;
 307
 308         memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
 309         memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
 310
 311         /* set station address */
 312
 313         if (!is_valid_ether_addr(netdev->dev_addr))
 314                 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
 315                                         netdev->dev_addr);
 316
 317         return 0;
 318 }
 319
 320 static void qlcnic_delete_adapter_mac(struct qlcnic_adapter *adapter)
 321 {
 322         struct qlcnic_mac_vlan_list *cur;
 323         struct list_head *head;
 324
 325         list_for_each(head, &adapter->mac_list) {
 326                 cur = list_entry(head, struct qlcnic_mac_vlan_list, list);
 327                 if (ether_addr_equal_unaligned(adapter->mac_addr, cur->mac_addr)) {
 328                         qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
 329                                                   0, QLCNIC_MAC_DEL);
 330                         list_del(&cur->list);
 331                         kfree(cur);
 332                         return;
 333                 }
 334         }
 335 }
 336
 337 static int qlcnic_set_mac(struct net_device *netdev, void *p)
 338 {
 339         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 340         struct sockaddr *addr = p;
 341
 342         if (qlcnic_sriov_vf_check(adapter))
 343                 return -EINVAL;
 344
 345         if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
 346                 return -EOPNOTSUPP;
 347
 348         if (!is_valid_ether_addr(addr->sa_data))
 349                 return -EINVAL;
 350
 351         if (ether_addr_equal_unaligned(adapter->mac_addr, addr->sa_data) &&
 352             ether_addr_equal_unaligned(netdev->dev_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,
 374                         const unsigned char *addr, u16 vid)
 375 {
 376         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 377         int err = -EOPNOTSUPP;
 378
 379         if (!adapter->fdb_mac_learn)
 380                 return ndo_dflt_fdb_del(ndm, tb, netdev, addr, vid);
 381
 382         if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
 383             qlcnic_sriov_check(adapter)) {
 384                 if (is_unicast_ether_addr(addr)) {
 385                         err = dev_uc_del(netdev, addr);
 386                         if (!err)
 387                                 err = qlcnic_nic_del_mac(adapter, addr);
 388                 } else if (is_multicast_ether_addr(addr)) {
 389                         err = dev_mc_del(netdev, addr);
 390                 } else {
 391                         err =  -EINVAL;
 392                 }
 393         }
 394         return err;
 395 }
 396
 397 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 398                         struct net_device *netdev,
 399                         const unsigned char *addr, u16 vid, u16 flags)
 400 {
 401         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 402         int err = 0;
 403
 404         if (!adapter->fdb_mac_learn)
 405                 return ndo_dflt_fdb_add(ndm, tb, netdev, addr, vid, flags);
 406
 407         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) &&
 408             !qlcnic_sriov_check(adapter)) {
 409                 pr_info("%s: FDB e-switch is not enabled\n", __func__);
 410                 return -EOPNOTSUPP;
 411         }
 412
 413         if (ether_addr_equal(addr, adapter->mac_addr))
 414                 return err;
 415
 416         if (is_unicast_ether_addr(addr)) {
 417                 if (netdev_uc_count(netdev) < adapter->ahw->max_uc_count)
 418                         err = dev_uc_add_excl(netdev, addr);
 419                 else
 420                         err = -ENOMEM;
 421         } else if (is_multicast_ether_addr(addr)) {
 422                 err = dev_mc_add_excl(netdev, addr);
 423         } else {
 424                 err = -EINVAL;
 425         }
 426
 427         return err;
 428 }
 429
 430 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
 431                         struct net_device *netdev,
 432                         struct net_device *filter_dev, int *idx)
 433 {
 434         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 435         int err = 0;
 436
 437         if (!adapter->fdb_mac_learn)
 438                 return ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
 439
 440         if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
 441             qlcnic_sriov_check(adapter))
 442                 err = ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
 443
 444         return err;
 445 }
 446
 447 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
 448 {
 449         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
 450                 usleep_range(10000, 11000);
 451
 452         if (!adapter->fw_work.work.func)
 453                 return;
 454
 455         cancel_delayed_work_sync(&adapter->fw_work);
 456 }
 457
 458 static int qlcnic_get_phys_port_id(struct net_device *netdev,
 459                                    struct netdev_phys_item_id *ppid)
 460 {
 461         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 462         struct qlcnic_hardware_context *ahw = adapter->ahw;
 463
 464         if (!(adapter->flags & QLCNIC_HAS_PHYS_PORT_ID))
 465                 return -EOPNOTSUPP;
 466
 467         ppid->id_len = sizeof(ahw->phys_port_id);
 468         memcpy(ppid->id, ahw->phys_port_id, ppid->id_len);
 469
 470         return 0;
 471 }
 472
 473 static void qlcnic_add_vxlan_port(struct net_device *netdev,
 474                                   struct udp_tunnel_info *ti)
 475 {
 476         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 477         struct qlcnic_hardware_context *ahw = adapter->ahw;
 478
 479         if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
 480                 return;
 481
 482         /* Adapter supports only one VXLAN port. Use very first port
 483          * for enabling offload
 484          */
 485         if (!qlcnic_encap_rx_offload(adapter))
 486                 return;
 487         if (!ahw->vxlan_port_count) {
 488                 ahw->vxlan_port_count = 1;
 489                 ahw->vxlan_port = ntohs(ti->port);
 490                 adapter->flags |= QLCNIC_ADD_VXLAN_PORT;
 491                 return;
 492         }
 493         if (ahw->vxlan_port == ntohs(ti->port))
 494                 ahw->vxlan_port_count++;
 495
 496 }
 497
 498 static void qlcnic_del_vxlan_port(struct net_device *netdev,
 499                                   struct udp_tunnel_info *ti)
 500 {
 501         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 502         struct qlcnic_hardware_context *ahw = adapter->ahw;
 503
 504         if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
 505                 return;
 506
 507         if (!qlcnic_encap_rx_offload(adapter) || !ahw->vxlan_port_count ||
 508             (ahw->vxlan_port != ntohs(ti->port)))
 509                 return;
 510
 511         ahw->vxlan_port_count--;
 512         if (!ahw->vxlan_port_count)
 513                 adapter->flags |= QLCNIC_DEL_VXLAN_PORT;
 514 }
 515
 516 static netdev_features_t qlcnic_features_check(struct sk_buff *skb,
 517                                                struct net_device *dev,
 518                                                netdev_features_t features)
 519 {
 520         features = vlan_features_check(skb, features);
 521         return vxlan_features_check(skb, features);
 522 }
 523
 524 static const struct net_device_ops qlcnic_netdev_ops = {
 525         .ndo_open          = qlcnic_open,
 526         .ndo_stop          = qlcnic_close,
 527         .ndo_start_xmit    = qlcnic_xmit_frame,
 528         .ndo_get_stats     = qlcnic_get_stats,
 529         .ndo_validate_addr = eth_validate_addr,
 530         .ndo_set_rx_mode   = qlcnic_set_multi,
 531         .ndo_set_mac_address    = qlcnic_set_mac,
 532         .ndo_change_mtu    = qlcnic_change_mtu,
 533         .ndo_fix_features  = qlcnic_fix_features,
 534         .ndo_set_features  = qlcnic_set_features,
 535         .ndo_tx_timeout    = qlcnic_tx_timeout,
 536         .ndo_vlan_rx_add_vid    = qlcnic_vlan_rx_add,
 537         .ndo_vlan_rx_kill_vid   = qlcnic_vlan_rx_del,
 538         .ndo_fdb_add            = qlcnic_fdb_add,
 539         .ndo_fdb_del            = qlcnic_fdb_del,
 540         .ndo_fdb_dump           = qlcnic_fdb_dump,
 541         .ndo_get_phys_port_id   = qlcnic_get_phys_port_id,
 542         .ndo_udp_tunnel_add     = qlcnic_add_vxlan_port,
 543         .ndo_udp_tunnel_del     = qlcnic_del_vxlan_port,
 544         .ndo_features_check     = qlcnic_features_check,
 545 #ifdef CONFIG_QLCNIC_SRIOV
 546         .ndo_set_vf_mac         = qlcnic_sriov_set_vf_mac,
 547         .ndo_set_vf_rate        = qlcnic_sriov_set_vf_tx_rate,
 548         .ndo_get_vf_config      = qlcnic_sriov_get_vf_config,
 549         .ndo_set_vf_vlan        = qlcnic_sriov_set_vf_vlan,
 550         .ndo_set_vf_spoofchk    = qlcnic_sriov_set_vf_spoofchk,
 551 #endif
 552 };
 553
 554 static const struct net_device_ops qlcnic_netdev_failed_ops = {
 555         .ndo_open          = qlcnic_open,
 556 };
 557
 558 static struct qlcnic_nic_template qlcnic_ops = {
 559         .config_bridged_mode    = qlcnic_config_bridged_mode,
 560         .config_led             = qlcnic_82xx_config_led,
 561         .start_firmware         = qlcnic_82xx_start_firmware,
 562         .request_reset          = qlcnic_82xx_dev_request_reset,
 563         .cancel_idc_work        = qlcnic_82xx_cancel_idc_work,
 564         .napi_add               = qlcnic_82xx_napi_add,
 565         .napi_del               = qlcnic_82xx_napi_del,
 566         .config_ipaddr          = qlcnic_82xx_config_ipaddr,
 567         .shutdown               = qlcnic_82xx_shutdown,
 568         .resume                 = qlcnic_82xx_resume,
 569         .clear_legacy_intr      = qlcnic_82xx_clear_legacy_intr,
 570 };
 571
 572 struct qlcnic_nic_template qlcnic_vf_ops = {
 573         .config_bridged_mode    = qlcnicvf_config_bridged_mode,
 574         .config_led             = qlcnicvf_config_led,
 575         .start_firmware         = qlcnicvf_start_firmware
 576 };
 577
 578 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
 579         .read_crb                       = qlcnic_82xx_read_crb,
 580         .write_crb                      = qlcnic_82xx_write_crb,
 581         .read_reg                       = qlcnic_82xx_hw_read_wx_2M,
 582         .write_reg                      = qlcnic_82xx_hw_write_wx_2M,
 583         .get_mac_address                = qlcnic_82xx_get_mac_address,
 584         .setup_intr                     = qlcnic_82xx_setup_intr,
 585         .alloc_mbx_args                 = qlcnic_82xx_alloc_mbx_args,
 586         .mbx_cmd                        = qlcnic_82xx_issue_cmd,
 587         .get_func_no                    = qlcnic_82xx_get_func_no,
 588         .api_lock                       = qlcnic_82xx_api_lock,
 589         .api_unlock                     = qlcnic_82xx_api_unlock,
 590         .add_sysfs                      = qlcnic_82xx_add_sysfs,
 591         .remove_sysfs                   = qlcnic_82xx_remove_sysfs,
 592         .process_lb_rcv_ring_diag       = qlcnic_82xx_process_rcv_ring_diag,
 593         .create_rx_ctx                  = qlcnic_82xx_fw_cmd_create_rx_ctx,
 594         .create_tx_ctx                  = qlcnic_82xx_fw_cmd_create_tx_ctx,
 595         .del_rx_ctx                     = qlcnic_82xx_fw_cmd_del_rx_ctx,
 596         .del_tx_ctx                     = qlcnic_82xx_fw_cmd_del_tx_ctx,
 597         .setup_link_event               = qlcnic_82xx_linkevent_request,
 598         .get_nic_info                   = qlcnic_82xx_get_nic_info,
 599         .get_pci_info                   = qlcnic_82xx_get_pci_info,
 600         .set_nic_info                   = qlcnic_82xx_set_nic_info,
 601         .change_macvlan                 = qlcnic_82xx_sre_macaddr_change,
 602         .napi_enable                    = qlcnic_82xx_napi_enable,
 603         .napi_disable                   = qlcnic_82xx_napi_disable,
 604         .config_intr_coal               = qlcnic_82xx_config_intr_coalesce,
 605         .config_rss                     = qlcnic_82xx_config_rss,
 606         .config_hw_lro                  = qlcnic_82xx_config_hw_lro,
 607         .config_loopback                = qlcnic_82xx_set_lb_mode,
 608         .clear_loopback                 = qlcnic_82xx_clear_lb_mode,
 609         .config_promisc_mode            = qlcnic_82xx_nic_set_promisc,
 610         .change_l2_filter               = qlcnic_82xx_change_filter,
 611         .get_board_info                 = qlcnic_82xx_get_board_info,
 612         .set_mac_filter_count           = qlcnic_82xx_set_mac_filter_count,
 613         .free_mac_list                  = qlcnic_82xx_free_mac_list,
 614         .read_phys_port_id              = qlcnic_82xx_read_phys_port_id,
 615         .io_error_detected              = qlcnic_82xx_io_error_detected,
 616         .io_slot_reset                  = qlcnic_82xx_io_slot_reset,
 617         .io_resume                      = qlcnic_82xx_io_resume,
 618         .get_beacon_state               = qlcnic_82xx_get_beacon_state,
 619         .enable_sds_intr                = qlcnic_82xx_enable_sds_intr,
 620         .disable_sds_intr               = qlcnic_82xx_disable_sds_intr,
 621         .enable_tx_intr                 = qlcnic_82xx_enable_tx_intr,
 622         .disable_tx_intr                = qlcnic_82xx_disable_tx_intr,
 623         .get_saved_state                = qlcnic_82xx_get_saved_state,
 624         .set_saved_state                = qlcnic_82xx_set_saved_state,
 625         .cache_tmpl_hdr_values          = qlcnic_82xx_cache_tmpl_hdr_values,
 626         .get_cap_size                   = qlcnic_82xx_get_cap_size,
 627         .set_sys_info                   = qlcnic_82xx_set_sys_info,
 628         .store_cap_mask                 = qlcnic_82xx_store_cap_mask,
 629         .encap_rx_offload               = qlcnic_82xx_encap_rx_offload,
 630         .encap_tx_offload               = qlcnic_82xx_encap_tx_offload,
 631 };
 632
 633 static int qlcnic_check_multi_tx_capability(struct qlcnic_adapter *adapter)
 634 {
 635         struct qlcnic_hardware_context *ahw = adapter->ahw;
 636
 637         if (qlcnic_82xx_check(adapter) &&
 638             (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_MULTI_TX)) {
 639                 test_and_set_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
 640                 return 0;
 641         } else {
 642                 return 1;
 643         }
 644 }
 645
 646 static int qlcnic_max_rings(struct qlcnic_adapter *adapter, u8 ring_cnt,
 647                             int queue_type)
 648 {
 649         int num_rings, max_rings = QLCNIC_MAX_SDS_RINGS;
 650
 651         if (queue_type == QLCNIC_RX_QUEUE)
 652                 max_rings = adapter->max_sds_rings;
 653         else if (queue_type == QLCNIC_TX_QUEUE)
 654                 max_rings = adapter->max_tx_rings;
 655
 656         num_rings = rounddown_pow_of_two(min_t(int, num_online_cpus(),
 657                                               max_rings));
 658
 659         if (ring_cnt > num_rings)
 660                 return num_rings;
 661         else
 662                 return ring_cnt;
 663 }
 664
 665 void qlcnic_set_tx_ring_count(struct qlcnic_adapter *adapter, u8 tx_cnt)
 666 {
 667         /* 83xx adapter does not have max_tx_rings intialized in probe */
 668         if (adapter->max_tx_rings)
 669                 adapter->drv_tx_rings = qlcnic_max_rings(adapter, tx_cnt,
 670                                                          QLCNIC_TX_QUEUE);
 671         else
 672                 adapter->drv_tx_rings = tx_cnt;
 673 }
 674
 675 void qlcnic_set_sds_ring_count(struct qlcnic_adapter *adapter, u8 rx_cnt)
 676 {
 677         /* 83xx adapter does not have max_sds_rings intialized in probe */
 678         if (adapter->max_sds_rings)
 679                 adapter->drv_sds_rings = qlcnic_max_rings(adapter, rx_cnt,
 680                                                           QLCNIC_RX_QUEUE);
 681         else
 682                 adapter->drv_sds_rings = rx_cnt;
 683 }
 684
 685 int qlcnic_setup_tss_rss_intr(struct qlcnic_adapter *adapter)
 686 {
 687         struct pci_dev *pdev = adapter->pdev;
 688         int num_msix = 0, err = 0, vector;
 689
 690         adapter->flags &= ~QLCNIC_TSS_RSS;
 691
 692         if (adapter->drv_tss_rings > 0)
 693                 num_msix += adapter->drv_tss_rings;
 694         else
 695                 num_msix += adapter->drv_tx_rings;
 696
 697         if (adapter->drv_rss_rings > 0)
 698                 num_msix += adapter->drv_rss_rings;
 699         else
 700                 num_msix += adapter->drv_sds_rings;
 701
 702         if (qlcnic_83xx_check(adapter))
 703                 num_msix += 1;
 704
 705         if (!adapter->msix_entries) {
 706                 adapter->msix_entries = kcalloc(num_msix,
 707                                                 sizeof(struct msix_entry),
 708                                                 GFP_KERNEL);
 709                 if (!adapter->msix_entries)
 710                         return -ENOMEM;
 711         }
 712
 713         for (vector = 0; vector < num_msix; vector++)
 714                 adapter->msix_entries[vector].entry = vector;
 715
 716 restore:
 717         err = pci_enable_msix_exact(pdev, adapter->msix_entries, num_msix);
 718         if (err == -ENOSPC) {
 719                 if (!adapter->drv_tss_rings && !adapter->drv_rss_rings)
 720                         return err;
 721
 722                 netdev_info(adapter->netdev,
 723                             "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
 724                             num_msix, err);
 725
 726                 num_msix = adapter->drv_tx_rings + adapter->drv_sds_rings;
 727
 728                 /* Set rings to 0 so we can restore original TSS/RSS count */
 729                 adapter->drv_tss_rings = 0;
 730                 adapter->drv_rss_rings = 0;
 731
 732                 if (qlcnic_83xx_check(adapter))
 733                         num_msix += 1;
 734
 735                 netdev_info(adapter->netdev,
 736                             "Restoring %d Tx, %d SDS rings for total %d vectors.\n",
 737                             adapter->drv_tx_rings, adapter->drv_sds_rings,
 738                             num_msix);
 739
 740                 goto restore;
 741         } else if (err < 0) {
 742                 return err;
 743         }
 744
 745         adapter->ahw->num_msix = num_msix;
 746         if (adapter->drv_tss_rings > 0)
 747                 adapter->drv_tx_rings = adapter->drv_tss_rings;
 748
 749         if (adapter->drv_rss_rings > 0)
 750                 adapter->drv_sds_rings = adapter->drv_rss_rings;
 751
 752         return 0;
 753 }
 754
 755 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 756 {
 757         struct pci_dev *pdev = adapter->pdev;
 758         int err, vector;
 759
 760         if (!adapter->msix_entries) {
 761                 adapter->msix_entries = kcalloc(num_msix,
 762                                                 sizeof(struct msix_entry),
 763                                                 GFP_KERNEL);
 764                 if (!adapter->msix_entries)
 765                         return -ENOMEM;
 766         }
 767
 768         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 769
 770         if (adapter->ahw->msix_supported) {
 771 enable_msix:
 772                 for (vector = 0; vector < num_msix; vector++)
 773                         adapter->msix_entries[vector].entry = vector;
 774
 775                 err = pci_enable_msix_range(pdev,
 776                                             adapter->msix_entries, 1, num_msix);
 777
 778                 if (err == num_msix) {
 779                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 780                         adapter->ahw->num_msix = num_msix;
 781                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 782                         return 0;
 783                 } else if (err > 0) {
 784                         pci_disable_msix(pdev);
 785
 786                         dev_info(&pdev->dev,
 787                                  "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
 788                                  num_msix, err);
 789
 790                         if (qlcnic_82xx_check(adapter)) {
 791                                 num_msix = rounddown_pow_of_two(err);
 792                                 if (err < QLCNIC_82XX_MINIMUM_VECTOR)
 793                                         return -ENOSPC;
 794                         } else {
 795                                 num_msix = rounddown_pow_of_two(err - 1);
 796                                 num_msix += 1;
 797                                 if (err < QLCNIC_83XX_MINIMUM_VECTOR)
 798                                         return -ENOSPC;
 799                         }
 800
 801                         if (qlcnic_82xx_check(adapter) &&
 802                             !qlcnic_check_multi_tx(adapter)) {
 803                                 adapter->drv_sds_rings = num_msix;
 804                                 adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
 805                         } else {
 806                                 /* Distribute vectors equally */
 807                                 adapter->drv_tx_rings = num_msix / 2;
 808                                 adapter->drv_sds_rings = adapter->drv_tx_rings;
 809                         }
 810
 811                         if (num_msix) {
 812                                 dev_info(&pdev->dev,
 813                                          "Trying to allocate %d MSI-X interrupt vectors\n",
 814                                          num_msix);
 815                                 goto enable_msix;
 816                         }
 817                 } else {
 818                         dev_info(&pdev->dev,
 819                                  "Unable to allocate %d MSI-X vectors, err=%d\n",
 820                                  num_msix, err);
 821                         return err;
 822                 }
 823         }
 824
 825         return -EIO;
 826 }
 827
 828 static int qlcnic_82xx_calculate_msix_vector(struct qlcnic_adapter *adapter)
 829 {
 830         int num_msix;
 831
 832         num_msix = adapter->drv_sds_rings;
 833
 834         if (qlcnic_check_multi_tx(adapter))
 835                 num_msix += adapter->drv_tx_rings;
 836         else
 837                 num_msix += QLCNIC_SINGLE_RING;
 838
 839         return num_msix;
 840 }
 841
 842 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
 843 {
 844         int err = 0;
 845         u32 offset, mask_reg;
 846         const struct qlcnic_legacy_intr_set *legacy_intrp;
 847         struct qlcnic_hardware_context *ahw = adapter->ahw;
 848         struct pci_dev *pdev = adapter->pdev;
 849
 850         if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
 851                 adapter->flags |= QLCNIC_MSI_ENABLED;
 852                 offset = msi_tgt_status[adapter->ahw->pci_func];
 853                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
 854                                                             offset);
 855                 dev_info(&pdev->dev, "using msi interrupts\n");
 856                 adapter->msix_entries[0].vector = pdev->irq;
 857                 return err;
 858         }
 859
 860         if (qlcnic_use_msi || qlcnic_use_msi_x)
 861                 return -EOPNOTSUPP;
 862
 863         legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
 864         adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
 865         offset = legacy_intrp->tgt_status_reg;
 866         adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
 867         mask_reg = legacy_intrp->tgt_mask_reg;
 868         adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
 869         adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
 870         adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
 871         dev_info(&pdev->dev, "using legacy interrupts\n");
 872         adapter->msix_entries[0].vector = pdev->irq;
 873         return err;
 874 }
 875
 876 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter)
 877 {
 878         int num_msix, err = 0;
 879
 880         if (adapter->flags & QLCNIC_TSS_RSS) {
 881                 err = qlcnic_setup_tss_rss_intr(adapter);
 882                 if (err < 0)
 883                         return err;
 884                 num_msix = adapter->ahw->num_msix;
 885         } else {
 886                 num_msix = qlcnic_82xx_calculate_msix_vector(adapter);
 887
 888                 err = qlcnic_enable_msix(adapter, num_msix);
 889                 if (err == -ENOMEM)
 890                         return err;
 891
 892                 if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
 893                         qlcnic_disable_multi_tx(adapter);
 894                         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
 895
 896                         err = qlcnic_enable_msi_legacy(adapter);
 897                         if (err)
 898                                 return err;
 899                 }
 900         }
 901
 902         return 0;
 903 }
 904
 905 int qlcnic_82xx_mq_intrpt(struct qlcnic_adapter *adapter, int op_type)
 906 {
 907         struct qlcnic_hardware_context *ahw = adapter->ahw;
 908         int err, i;
 909
 910         if (qlcnic_check_multi_tx(adapter) &&
 911             !ahw->diag_test &&
 912             (adapter->flags & QLCNIC_MSIX_ENABLED)) {
 913                 ahw->intr_tbl =
 914                         vzalloc(array_size(sizeof(struct qlcnic_intrpt_config),
 915                                            ahw->num_msix));
 916                 if (!ahw->intr_tbl)
 917                         return -ENOMEM;
 918
 919                 for (i = 0; i < ahw->num_msix; i++) {
 920                         ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
 921                         ahw->intr_tbl[i].id = i;
 922                         ahw->intr_tbl[i].src = 0;
 923                 }
 924
 925                 err = qlcnic_82xx_config_intrpt(adapter, 1);
 926                 if (err)
 927                         dev_err(&adapter->pdev->dev,
 928                                 "Failed to configure Interrupt for %d vector\n",
 929                                 ahw->num_msix);
 930                 return err;
 931         }
 932
 933         return 0;
 934 }
 935
 936 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 937 {
 938         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 939                 pci_disable_msix(adapter->pdev);
 940         if (adapter->flags & QLCNIC_MSI_ENABLED)
 941                 pci_disable_msi(adapter->pdev);
 942
 943         kfree(adapter->msix_entries);
 944         adapter->msix_entries = NULL;
 945
 946         if (adapter->ahw->intr_tbl) {
 947                 vfree(adapter->ahw->intr_tbl);
 948                 adapter->ahw->intr_tbl = NULL;
 949         }
 950 }
 951
 952 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
 953 {
 954         if (ahw->pci_base0 != NULL)
 955                 iounmap(ahw->pci_base0);
 956 }
 957
 958 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
 959 {
 960         struct qlcnic_hardware_context *ahw = adapter->ahw;
 961         struct qlcnic_pci_info *pci_info;
 962         int ret;
 963
 964         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 965                 switch (ahw->port_type) {
 966                 case QLCNIC_GBE:
 967                         ahw->total_nic_func = QLCNIC_NIU_MAX_GBE_PORTS;
 968                         break;
 969                 case QLCNIC_XGBE:
 970                         ahw->total_nic_func = QLCNIC_NIU_MAX_XG_PORTS;
 971                         break;
 972                 }
 973                 return 0;
 974         }
 975
 976         if (ahw->op_mode == QLCNIC_MGMT_FUNC)
 977                 return 0;
 978
 979         pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
 980         if (!pci_info)
 981                 return -ENOMEM;
 982
 983         ret = qlcnic_get_pci_info(adapter, pci_info);
 984         kfree(pci_info);
 985         return ret;
 986 }
 987
 988 static bool qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter *adapter)
 989 {
 990         bool ret = false;
 991
 992         if (qlcnic_84xx_check(adapter)) {
 993                 ret = true;
 994         } else if (qlcnic_83xx_check(adapter)) {
 995                 if (adapter->ahw->extra_capability[0] &
 996                     QLCNIC_FW_CAPABILITY_2_PER_PORT_ESWITCH_CFG)
 997                         ret = true;
 998                 else
 999                         ret = false;
1000         }
1001
1002         return ret;
1003 }
1004
1005 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
1006 {
1007         struct qlcnic_hardware_context *ahw = adapter->ahw;
1008         struct qlcnic_pci_info *pci_info;
1009         int i, id = 0, ret = 0, j = 0;
1010         u16 act_pci_func;
1011         u8 pfn;
1012
1013         pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
1014         if (!pci_info)
1015                 return -ENOMEM;
1016
1017         ret = qlcnic_get_pci_info(adapter, pci_info);
1018         if (ret)
1019                 goto err_pci_info;
1020
1021         act_pci_func = ahw->total_nic_func;
1022
1023         adapter->npars = kcalloc(act_pci_func,
1024                                  sizeof(struct qlcnic_npar_info),
1025                                  GFP_KERNEL);
1026         if (!adapter->npars) {
1027                 ret = -ENOMEM;
1028                 goto err_pci_info;
1029         }
1030
1031         adapter->eswitch = kcalloc(QLCNIC_NIU_MAX_XG_PORTS,
1032                                    sizeof(struct qlcnic_eswitch),
1033                                    GFP_KERNEL);
1034         if (!adapter->eswitch) {
1035                 ret = -ENOMEM;
1036                 goto err_npars;
1037         }
1038
1039         for (i = 0; i < ahw->max_vnic_func; i++) {
1040                 pfn = pci_info[i].id;
1041
1042                 if (pfn >= ahw->max_vnic_func) {
1043                         ret = -EINVAL;
1044                         dev_err(&adapter->pdev->dev, "%s: Invalid function 0x%x, max 0x%x\n",
1045                                 __func__, pfn, ahw->max_vnic_func);
1046                         goto err_eswitch;
1047                 }
1048
1049                 if (!pci_info[i].active ||
1050                     (pci_info[i].type != QLCNIC_TYPE_NIC))
1051                         continue;
1052
1053                 if (qlcnic_port_eswitch_cfg_capability(adapter)) {
1054                         if (!qlcnic_83xx_set_port_eswitch_status(adapter, pfn,
1055                                                                  &id))
1056                                 adapter->npars[j].eswitch_status = true;
1057                         else
1058                                 continue;
1059                 } else {
1060                         adapter->npars[j].eswitch_status = true;
1061                 }
1062
1063                 adapter->npars[j].pci_func = pfn;
1064                 adapter->npars[j].active = (u8)pci_info[i].active;
1065                 adapter->npars[j].type = (u8)pci_info[i].type;
1066                 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
1067                 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
1068                 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
1069
1070                 memcpy(&adapter->npars[j].mac, &pci_info[i].mac, ETH_ALEN);
1071                 j++;
1072         }
1073
1074         /* Update eSwitch status for adapters without per port eSwitch
1075          * configuration capability
1076          */
1077         if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
1078                 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
1079                         adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
1080         }
1081
1082         kfree(pci_info);
1083         return 0;
1084
1085 err_eswitch:
1086         kfree(adapter->eswitch);
1087         adapter->eswitch = NULL;
1088 err_npars:
1089         kfree(adapter->npars);
1090         adapter->npars = NULL;
1091 err_pci_info:
1092         kfree(pci_info);
1093
1094         return ret;
1095 }
1096
1097 static int
1098 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
1099 {
1100         u8 id;
1101         int ret;
1102         u32 data = QLCNIC_MGMT_FUNC;
1103         struct qlcnic_hardware_context *ahw = adapter->ahw;
1104
1105         ret = qlcnic_api_lock(adapter);
1106         if (ret)
1107                 goto err_lock;
1108
1109         id = ahw->pci_func;
1110         data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1111         data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
1112                QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
1113         QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
1114         qlcnic_api_unlock(adapter);
1115 err_lock:
1116         return ret;
1117 }
1118
1119 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
1120                             const struct pci_device_id *ent)
1121 {
1122         u32 op_mode, priv_level;
1123
1124         /* Determine FW API version */
1125         adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
1126                                                            QLCNIC_FW_API);
1127
1128         /* Find PCI function number */
1129         qlcnic_get_func_no(adapter);
1130
1131         /* Determine function privilege level */
1132         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1133         if (op_mode == QLC_DEV_DRV_DEFAULT)
1134                 priv_level = QLCNIC_MGMT_FUNC;
1135         else
1136                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1137
1138         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
1139                 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
1140                 dev_info(&adapter->pdev->dev,
1141                         "HAL Version: %d Non Privileged function\n",
1142                          adapter->ahw->fw_hal_version);
1143                 adapter->nic_ops = &qlcnic_vf_ops;
1144         } else
1145                 adapter->nic_ops = &qlcnic_ops;
1146 }
1147
1148 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
1149 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
1150 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
1151 {
1152         switch (dev_id) {
1153         case PCI_DEVICE_ID_QLOGIC_QLE824X:
1154                 *bar = QLCNIC_82XX_BAR0_LENGTH;
1155                 break;
1156         case PCI_DEVICE_ID_QLOGIC_QLE834X:
1157         case PCI_DEVICE_ID_QLOGIC_QLE8830:
1158         case PCI_DEVICE_ID_QLOGIC_QLE844X:
1159         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
1160         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
1161         case PCI_DEVICE_ID_QLOGIC_VF_QLE8C30:
1162                 *bar = QLCNIC_83XX_BAR0_LENGTH;
1163                 break;
1164         default:
1165                 *bar = 0;
1166         }
1167 }
1168
1169 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
1170                                 struct qlcnic_hardware_context *ahw)
1171 {
1172         u32 offset;
1173         void __iomem *mem_ptr0 = NULL;
1174         unsigned long mem_len, pci_len0 = 0, bar0_len;
1175
1176         /* remap phys address */
1177         mem_len = pci_resource_len(pdev, 0);
1178
1179         qlcnic_get_bar_length(pdev->device, &bar0_len);
1180         if (mem_len >= bar0_len) {
1181
1182                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
1183                 if (mem_ptr0 == NULL) {
1184                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
1185                         return -EIO;
1186                 }
1187                 pci_len0 = mem_len;
1188         } else {
1189                 return -EIO;
1190         }
1191
1192         dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
1193
1194         ahw->pci_base0 = mem_ptr0;
1195         ahw->pci_len0 = pci_len0;
1196         offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
1197         qlcnic_get_ioaddr(ahw, offset);
1198
1199         return 0;
1200 }
1201
1202 static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
1203                                          int index)
1204 {
1205         struct pci_dev *pdev = adapter->pdev;
1206         unsigned short subsystem_vendor;
1207         bool ret = true;
1208
1209         subsystem_vendor = pdev->subsystem_vendor;
1210
1211         if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
1212             pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1213                 if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
1214                     qlcnic_boards[index].sub_device == pdev->subsystem_device)
1215                         ret = true;
1216                 else
1217                         ret = false;
1218         }
1219
1220         return ret;
1221 }
1222
1223 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
1224 {
1225         struct pci_dev *pdev = adapter->pdev;
1226         int i, found = 0;
1227
1228         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1229                 if (qlcnic_boards[i].vendor == pdev->vendor &&
1230                     qlcnic_boards[i].device == pdev->device &&
1231                     qlcnic_validate_subsystem_id(adapter, i)) {
1232                         found = 1;
1233                         break;
1234                 }
1235         }
1236
1237         if (!found)
1238                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
1239         else
1240                 sprintf(name, "%pM: %s" , adapter->mac_addr,
1241                         qlcnic_boards[i].short_name);
1242 }
1243
1244 static void
1245 qlcnic_check_options(struct qlcnic_adapter *adapter)
1246 {
1247         int err;
1248         u32 fw_major, fw_minor, fw_build, prev_fw_version;
1249         struct pci_dev *pdev = adapter->pdev;
1250         struct qlcnic_hardware_context *ahw = adapter->ahw;
1251         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
1252
1253         prev_fw_version = adapter->fw_version;
1254
1255         fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
1256         fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
1257         fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
1258
1259         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
1260
1261         err = qlcnic_get_board_info(adapter);
1262         if (err) {
1263                 dev_err(&pdev->dev, "Error getting board config info.\n");
1264                 return;
1265         }
1266         if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
1267                 if (fw_dump->tmpl_hdr == NULL ||
1268                                 adapter->fw_version > prev_fw_version) {
1269                         vfree(fw_dump->tmpl_hdr);
1270                         if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1271                                 dev_info(&pdev->dev,
1272                                         "Supports FW dump capability\n");
1273                 }
1274         }
1275
1276         dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
1277                  QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
1278
1279         if (adapter->ahw->port_type == QLCNIC_XGBE) {
1280                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1281                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
1282                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
1283                 } else {
1284                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
1285                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
1286                 }
1287
1288                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1289                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1290
1291         } else if (adapter->ahw->port_type == QLCNIC_GBE) {
1292                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
1293                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1294                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1295                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
1296         }
1297
1298         adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
1299
1300         adapter->num_txd = MAX_CMD_DESCRIPTORS;
1301
1302         adapter->max_rds_rings = MAX_RDS_RINGS;
1303 }
1304
1305 static int
1306 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
1307 {
1308         struct qlcnic_info nic_info;
1309         int err = 0;
1310
1311         memset(&nic_info, 0, sizeof(struct qlcnic_info));
1312         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
1313         if (err)
1314                 return err;
1315
1316         adapter->ahw->physical_port = (u8)nic_info.phys_port;
1317         adapter->ahw->switch_mode = nic_info.switch_mode;
1318         adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
1319         adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
1320         adapter->ahw->capabilities = nic_info.capabilities;
1321
1322         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1323                 u32 temp;
1324                 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
1325                 if (err == -EIO)
1326                         return err;
1327                 adapter->ahw->extra_capability[0] = temp;
1328         } else {
1329                 adapter->ahw->extra_capability[0] = 0;
1330         }
1331
1332         adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1333         adapter->ahw->max_mtu = nic_info.max_mtu;
1334
1335         if (adapter->ahw->capabilities & BIT_6) {
1336                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1337                 adapter->ahw->nic_mode = QLCNIC_VNIC_MODE;
1338                 adapter->max_tx_rings = QLCNIC_MAX_HW_VNIC_TX_RINGS;
1339                 adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
1340
1341                 dev_info(&adapter->pdev->dev, "vNIC mode enabled.\n");
1342         } else {
1343                 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1344                 adapter->max_tx_rings = QLCNIC_MAX_HW_TX_RINGS;
1345                 adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
1346                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1347         }
1348
1349         return err;
1350 }
1351
1352 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1353                             struct qlcnic_esw_func_cfg *esw_cfg)
1354 {
1355         if (esw_cfg->discard_tagged)
1356                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1357         else
1358                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1359
1360         if (esw_cfg->vlan_id) {
1361                 adapter->rx_pvid = esw_cfg->vlan_id;
1362                 adapter->tx_pvid = esw_cfg->vlan_id;
1363         } else {
1364                 adapter->rx_pvid = 0;
1365                 adapter->tx_pvid = 0;
1366         }
1367 }
1368
1369 static int
1370 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1371 {
1372         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1373         int err;
1374
1375         if (qlcnic_sriov_vf_check(adapter)) {
1376                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1377                 if (err) {
1378                         netdev_err(netdev,
1379                                    "Cannot add VLAN filter for VLAN id %d, err=%d",
1380                                    vid, err);
1381                         return err;
1382                 }
1383         }
1384
1385         set_bit(vid, adapter->vlans);
1386         return 0;
1387 }
1388
1389 static int
1390 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1391 {
1392         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1393         int err;
1394
1395         if (qlcnic_sriov_vf_check(adapter)) {
1396                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1397                 if (err) {
1398                         netdev_err(netdev,
1399                                    "Cannot delete VLAN filter for VLAN id %d, err=%d",
1400                                    vid, err);
1401                         return err;
1402                 }
1403         }
1404
1405         qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1406         clear_bit(vid, adapter->vlans);
1407         return 0;
1408 }
1409
1410 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1411                                       struct qlcnic_esw_func_cfg *esw_cfg)
1412 {
1413         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1414                                 QLCNIC_PROMISC_DISABLED);
1415
1416         if (esw_cfg->mac_anti_spoof)
1417                 adapter->flags |= QLCNIC_MACSPOOF;
1418
1419         if (!esw_cfg->mac_override)
1420                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1421
1422         if (!esw_cfg->promisc_mode)
1423                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1424 }
1425
1426 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1427 {
1428         struct qlcnic_esw_func_cfg esw_cfg;
1429
1430         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1431                 return 0;
1432
1433         esw_cfg.pci_func = adapter->ahw->pci_func;
1434         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1435                         return -EIO;
1436         qlcnic_set_vlan_config(adapter, &esw_cfg);
1437         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1438         qlcnic_set_netdev_features(adapter, &esw_cfg);
1439
1440         return 0;
1441 }
1442
1443 void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1444                                 struct qlcnic_esw_func_cfg *esw_cfg)
1445 {
1446         struct net_device *netdev = adapter->netdev;
1447
1448         if (qlcnic_83xx_check(adapter))
1449                 return;
1450
1451         adapter->offload_flags = esw_cfg->offload_flags;
1452         adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1453         netdev_update_features(netdev);
1454         adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1455 }
1456
1457 static int
1458 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1459 {
1460         u32 op_mode, priv_level;
1461         int err = 0;
1462
1463         err = qlcnic_initialize_nic(adapter);
1464         if (err)
1465                 return err;
1466
1467         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1468                 return 0;
1469
1470         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1471         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1472
1473         if (op_mode == QLC_DEV_DRV_DEFAULT)
1474                 priv_level = QLCNIC_MGMT_FUNC;
1475         else
1476                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1477
1478         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1479                 if (priv_level == QLCNIC_MGMT_FUNC) {
1480                         adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1481                         err = qlcnic_init_pci_info(adapter);
1482                         if (err)
1483                                 return err;
1484                         /* Set privilege level for other functions */
1485                         qlcnic_set_function_modes(adapter);
1486                         dev_info(&adapter->pdev->dev,
1487                                 "HAL Version: %d, Management function\n",
1488                                  adapter->ahw->fw_hal_version);
1489                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1490                         adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1491                         dev_info(&adapter->pdev->dev,
1492                                 "HAL Version: %d, Privileged function\n",
1493                                  adapter->ahw->fw_hal_version);
1494                 }
1495         } else {
1496                 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1497         }
1498
1499         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1500
1501         return err;
1502 }
1503
1504 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1505 {
1506         struct qlcnic_esw_func_cfg esw_cfg;
1507         struct qlcnic_npar_info *npar;
1508         u8 i;
1509
1510         if (adapter->need_fw_reset)
1511                 return 0;
1512
1513         for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1514                 if (!adapter->npars[i].eswitch_status)
1515                         continue;
1516
1517                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1518                 esw_cfg.pci_func = adapter->npars[i].pci_func;
1519                 esw_cfg.mac_override = BIT_0;
1520                 esw_cfg.promisc_mode = BIT_0;
1521                 if (qlcnic_82xx_check(adapter)) {
1522                         esw_cfg.offload_flags = BIT_0;
1523                         if (QLCNIC_IS_TSO_CAPABLE(adapter))
1524                                 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1525                 }
1526                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1527                         return -EIO;
1528                 npar = &adapter->npars[i];
1529                 npar->pvid = esw_cfg.vlan_id;
1530                 npar->mac_override = esw_cfg.mac_override;
1531                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1532                 npar->discard_tagged = esw_cfg.discard_tagged;
1533                 npar->promisc_mode = esw_cfg.promisc_mode;
1534                 npar->offload_flags = esw_cfg.offload_flags;
1535         }
1536
1537         return 0;
1538 }
1539
1540
1541 static int
1542 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1543                         struct qlcnic_npar_info *npar, int pci_func)
1544 {
1545         struct qlcnic_esw_func_cfg esw_cfg;
1546         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1547         esw_cfg.pci_func = pci_func;
1548         esw_cfg.vlan_id = npar->pvid;
1549         esw_cfg.mac_override = npar->mac_override;
1550         esw_cfg.discard_tagged = npar->discard_tagged;
1551         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1552         esw_cfg.offload_flags = npar->offload_flags;
1553         esw_cfg.promisc_mode = npar->promisc_mode;
1554         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1555                 return -EIO;
1556
1557         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1558         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1559                 return -EIO;
1560
1561         return 0;
1562 }
1563
1564 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1565 {
1566         int i, err;
1567         struct qlcnic_npar_info *npar;
1568         struct qlcnic_info nic_info;
1569         u8 pci_func;
1570
1571         if (qlcnic_82xx_check(adapter))
1572                 if (!adapter->need_fw_reset)
1573                         return 0;
1574
1575         /* Set the NPAR config data after FW reset */
1576         for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1577                 npar = &adapter->npars[i];
1578                 pci_func = npar->pci_func;
1579                 if (!adapter->npars[i].eswitch_status)
1580                         continue;
1581
1582                 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1583                 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1584                 if (err)
1585                         return err;
1586                 nic_info.min_tx_bw = npar->min_bw;
1587                 nic_info.max_tx_bw = npar->max_bw;
1588                 err = qlcnic_set_nic_info(adapter, &nic_info);
1589                 if (err)
1590                         return err;
1591
1592                 if (npar->enable_pm) {
1593                         err = qlcnic_config_port_mirroring(adapter,
1594                                                            npar->dest_npar, 1,
1595                                                            pci_func);
1596                         if (err)
1597                                 return err;
1598                 }
1599                 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1600                 if (err)
1601                         return err;
1602         }
1603         return 0;
1604 }
1605
1606 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1607 {
1608         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1609         u32 npar_state;
1610
1611         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1612                 return 0;
1613
1614         npar_state = QLC_SHARED_REG_RD32(adapter,
1615                                          QLCNIC_CRB_DEV_NPAR_STATE);
1616         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1617                 msleep(1000);
1618                 npar_state = QLC_SHARED_REG_RD32(adapter,
1619                                                  QLCNIC_CRB_DEV_NPAR_STATE);
1620         }
1621         if (!npar_opt_timeo) {
1622                 dev_err(&adapter->pdev->dev,
1623                         "Waiting for NPAR state to operational timeout\n");
1624                 return -EIO;
1625         }
1626         return 0;
1627 }
1628
1629 static int
1630 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1631 {
1632         int err;
1633
1634         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1635             adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1636                 return 0;
1637
1638         err = qlcnic_set_default_offload_settings(adapter);
1639         if (err)
1640                 return err;
1641
1642         err = qlcnic_reset_npar_config(adapter);
1643         if (err)
1644                 return err;
1645
1646         qlcnic_dev_set_npar_ready(adapter);
1647
1648         return err;
1649 }
1650
1651 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1652 {
1653         int err;
1654
1655         err = qlcnic_can_start_firmware(adapter);
1656         if (err < 0)
1657                 return err;
1658         else if (!err)
1659                 goto check_fw_status;
1660
1661         if (qlcnic_load_fw_file)
1662                 qlcnic_request_firmware(adapter);
1663         else {
1664                 err = qlcnic_check_flash_fw_ver(adapter);
1665                 if (err)
1666                         goto err_out;
1667
1668                 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1669         }
1670
1671         err = qlcnic_need_fw_reset(adapter);
1672         if (err == 0)
1673                 goto check_fw_status;
1674
1675         err = qlcnic_pinit_from_rom(adapter);
1676         if (err)
1677                 goto err_out;
1678
1679         err = qlcnic_load_firmware(adapter);
1680         if (err)
1681                 goto err_out;
1682
1683         qlcnic_release_firmware(adapter);
1684         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1685
1686 check_fw_status:
1687         err = qlcnic_check_fw_status(adapter);
1688         if (err)
1689                 goto err_out;
1690
1691         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1692         qlcnic_idc_debug_info(adapter, 1);
1693         err = qlcnic_check_eswitch_mode(adapter);
1694         if (err) {
1695                 dev_err(&adapter->pdev->dev,
1696                         "Memory allocation failed for eswitch\n");
1697                 goto err_out;
1698         }
1699         err = qlcnic_set_mgmt_operations(adapter);
1700         if (err)
1701                 goto err_out;
1702
1703         qlcnic_check_options(adapter);
1704         adapter->need_fw_reset = 0;
1705
1706         qlcnic_release_firmware(adapter);
1707         return 0;
1708
1709 err_out:
1710         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1711         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1712
1713         qlcnic_release_firmware(adapter);
1714         return err;
1715 }
1716
1717 static int
1718 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1719 {
1720         irq_handler_t handler;
1721         struct qlcnic_host_sds_ring *sds_ring;
1722         struct qlcnic_host_tx_ring *tx_ring;
1723         int err, ring, num_sds_rings;
1724
1725         unsigned long flags = 0;
1726         struct net_device *netdev = adapter->netdev;
1727         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1728
1729         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1730                 if (qlcnic_82xx_check(adapter))
1731                         handler = qlcnic_tmp_intr;
1732                 else
1733                         handler = qlcnic_83xx_tmp_intr;
1734                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1735                         flags |= IRQF_SHARED;
1736
1737         } else {
1738                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1739                         handler = qlcnic_msix_intr;
1740                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1741                         handler = qlcnic_msi_intr;
1742                 else {
1743                         flags |= IRQF_SHARED;
1744                         if (qlcnic_82xx_check(adapter))
1745                                 handler = qlcnic_intr;
1746                         else
1747                                 handler = qlcnic_83xx_intr;
1748                 }
1749         }
1750         adapter->irq = netdev->irq;
1751
1752         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1753                 if (qlcnic_82xx_check(adapter) ||
1754                     (qlcnic_83xx_check(adapter) &&
1755                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1756                         num_sds_rings = adapter->drv_sds_rings;
1757                         for (ring = 0; ring < num_sds_rings; ring++) {
1758                                 sds_ring = &recv_ctx->sds_rings[ring];
1759                                 if (qlcnic_82xx_check(adapter) &&
1760                                     !qlcnic_check_multi_tx(adapter) &&
1761                                     (ring == (num_sds_rings - 1))) {
1762                                         if (!(adapter->flags &
1763                                               QLCNIC_MSIX_ENABLED))
1764                                                 snprintf(sds_ring->name,
1765                                                          sizeof(sds_ring->name),
1766                                                          "qlcnic");
1767                                         else
1768                                                 snprintf(sds_ring->name,
1769                                                          sizeof(sds_ring->name),
1770                                                          "%s-tx-0-rx-%d",
1771                                                          netdev->name, ring);
1772                                 } else {
1773                                         snprintf(sds_ring->name,
1774                                                  sizeof(sds_ring->name),
1775                                                  "%s-rx-%d",
1776                                                  netdev->name, ring);
1777                                 }
1778                                 err = request_irq(sds_ring->irq, handler, flags,
1779                                                   sds_ring->name, sds_ring);
1780                                 if (err)
1781                                         return err;
1782                         }
1783                 }
1784                 if ((qlcnic_82xx_check(adapter) &&
1785                      qlcnic_check_multi_tx(adapter)) ||
1786                     (qlcnic_83xx_check(adapter) &&
1787                      (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1788                      !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
1789                         handler = qlcnic_msix_tx_intr;
1790                         for (ring = 0; ring < adapter->drv_tx_rings;
1791                              ring++) {
1792                                 tx_ring = &adapter->tx_ring[ring];
1793                                 snprintf(tx_ring->name, sizeof(tx_ring->name),
1794                                          "%s-tx-%d", netdev->name, ring);
1795                                 err = request_irq(tx_ring->irq, handler, flags,
1796                                                   tx_ring->name, tx_ring);
1797                                 if (err)
1798                                         return err;
1799                         }
1800                 }
1801         }
1802         return 0;
1803 }
1804
1805 static void
1806 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1807 {
1808         int ring;
1809         struct qlcnic_host_sds_ring *sds_ring;
1810         struct qlcnic_host_tx_ring *tx_ring;
1811
1812         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1813
1814         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1815                 if (qlcnic_82xx_check(adapter) ||
1816                     (qlcnic_83xx_check(adapter) &&
1817                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1818                         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1819                                 sds_ring = &recv_ctx->sds_rings[ring];
1820                                 free_irq(sds_ring->irq, sds_ring);
1821                         }
1822                 }
1823                 if ((qlcnic_83xx_check(adapter) &&
1824                      !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
1825                     (qlcnic_82xx_check(adapter) &&
1826                      qlcnic_check_multi_tx(adapter))) {
1827                         for (ring = 0; ring < adapter->drv_tx_rings;
1828                              ring++) {
1829                                 tx_ring = &adapter->tx_ring[ring];
1830                                 if (tx_ring->irq)
1831                                         free_irq(tx_ring->irq, tx_ring);
1832                         }
1833                 }
1834         }
1835 }
1836
1837 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1838 {
1839         u32 capab = 0;
1840
1841         if (qlcnic_82xx_check(adapter)) {
1842                 if (adapter->ahw->extra_capability[0] &
1843                     QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1844                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1845         } else {
1846                 capab = adapter->ahw->capabilities;
1847                 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1848                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1849         }
1850 }
1851
1852 static int qlcnic_config_def_intr_coalesce(struct qlcnic_adapter *adapter)
1853 {
1854         struct qlcnic_hardware_context *ahw = adapter->ahw;
1855         int err;
1856
1857         /* Initialize interrupt coalesce parameters */
1858         ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1859
1860         if (qlcnic_83xx_check(adapter)) {
1861                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
1862                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1863                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1864                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1865                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1866
1867                 err = qlcnic_83xx_set_rx_tx_intr_coal(adapter);
1868         } else {
1869                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1870                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1871                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1872
1873                 err = qlcnic_82xx_set_rx_coalesce(adapter);
1874         }
1875
1876         return err;
1877 }
1878
1879 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1880 {
1881         int ring;
1882         struct qlcnic_host_rds_ring *rds_ring;
1883
1884         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1885                 return -EIO;
1886
1887         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1888                 return 0;
1889
1890         if (qlcnic_set_eswitch_port_config(adapter))
1891                 return -EIO;
1892
1893         qlcnic_get_lro_mss_capability(adapter);
1894
1895         if (qlcnic_fw_create_ctx(adapter))
1896                 return -EIO;
1897
1898         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1899                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1900                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1901         }
1902
1903         qlcnic_set_multi(netdev);
1904         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1905
1906         adapter->ahw->linkup = 0;
1907
1908         if (adapter->drv_sds_rings > 1)
1909                 qlcnic_config_rss(adapter, 1);
1910
1911         qlcnic_config_def_intr_coalesce(adapter);
1912
1913         if (netdev->features & NETIF_F_LRO)
1914                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1915
1916         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1917         qlcnic_napi_enable(adapter);
1918
1919         qlcnic_linkevent_request(adapter, 1);
1920
1921         adapter->ahw->reset_context = 0;
1922         netif_tx_start_all_queues(netdev);
1923         return 0;
1924 }
1925
1926 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1927 {
1928         int err = 0;
1929
1930         rtnl_lock();
1931         if (netif_running(netdev))
1932                 err = __qlcnic_up(adapter, netdev);
1933         rtnl_unlock();
1934
1935         return err;
1936 }
1937
1938 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1939 {
1940         int ring;
1941
1942         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1943                 return;
1944
1945         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1946                 return;
1947
1948         smp_mb();
1949         netif_carrier_off(netdev);
1950         adapter->ahw->linkup = 0;
1951         netif_tx_disable(netdev);
1952
1953         qlcnic_free_mac_list(adapter);
1954
1955         if (adapter->fhash.fnum)
1956                 qlcnic_delete_lb_filters(adapter);
1957
1958         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1959         if (qlcnic_sriov_vf_check(adapter))
1960                 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1961
1962         qlcnic_napi_disable(adapter);
1963
1964         qlcnic_fw_destroy_ctx(adapter);
1965         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1966
1967         qlcnic_reset_rx_buffers_list(adapter);
1968
1969         for (ring = 0; ring < adapter->drv_tx_rings; ring++)
1970                 qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
1971 }
1972
1973 /* Usage: During suspend and firmware recovery module */
1974
1975 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1976 {
1977         rtnl_lock();
1978         if (netif_running(netdev))
1979                 __qlcnic_down(adapter, netdev);
1980         rtnl_unlock();
1981
1982 }
1983
1984 int
1985 qlcnic_attach(struct qlcnic_adapter *adapter)
1986 {
1987         struct net_device *netdev = adapter->netdev;
1988         struct pci_dev *pdev = adapter->pdev;
1989         int err;
1990
1991         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1992                 return 0;
1993
1994         err = qlcnic_napi_add(adapter, netdev);
1995         if (err)
1996                 return err;
1997
1998         err = qlcnic_alloc_sw_resources(adapter);
1999         if (err) {
2000                 dev_err(&pdev->dev, "Error in setting sw resources\n");
2001                 goto err_out_napi_del;
2002         }
2003
2004         err = qlcnic_alloc_hw_resources(adapter);
2005         if (err) {
2006                 dev_err(&pdev->dev, "Error in setting hw resources\n");
2007                 goto err_out_free_sw;
2008         }
2009
2010         err = qlcnic_request_irq(adapter);
2011         if (err) {
2012                 dev_err(&pdev->dev, "failed to setup interrupt\n");
2013                 goto err_out_free_hw;
2014         }
2015
2016         qlcnic_create_sysfs_entries(adapter);
2017
2018         if (qlcnic_encap_rx_offload(adapter))
2019                 udp_tunnel_get_rx_info(netdev);
2020
2021         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
2022         return 0;
2023
2024 err_out_free_hw:
2025         qlcnic_free_hw_resources(adapter);
2026 err_out_free_sw:
2027         qlcnic_free_sw_resources(adapter);
2028 err_out_napi_del:
2029         qlcnic_napi_del(adapter);
2030         return err;
2031 }
2032
2033 void qlcnic_detach(struct qlcnic_adapter *adapter)
2034 {
2035         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2036                 return;
2037
2038         qlcnic_remove_sysfs_entries(adapter);
2039
2040         qlcnic_free_hw_resources(adapter);
2041         qlcnic_release_rx_buffers(adapter);
2042         qlcnic_free_irq(adapter);
2043         qlcnic_napi_del(adapter);
2044         qlcnic_free_sw_resources(adapter);
2045
2046         adapter->is_up = 0;
2047 }
2048
2049 void qlcnic_diag_free_res(struct net_device *netdev, int drv_sds_rings)
2050 {
2051         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2052         struct qlcnic_host_sds_ring *sds_ring;
2053         int drv_tx_rings = adapter->drv_tx_rings;
2054         int ring;
2055
2056         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
2057         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2058                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2059                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
2060                         qlcnic_disable_sds_intr(adapter, sds_ring);
2061                 }
2062         }
2063
2064         qlcnic_fw_destroy_ctx(adapter);
2065
2066         qlcnic_detach(adapter);
2067
2068         adapter->ahw->diag_test = 0;
2069         adapter->drv_sds_rings = drv_sds_rings;
2070         adapter->drv_tx_rings = drv_tx_rings;
2071
2072         if (qlcnic_attach(adapter))
2073                 goto out;
2074
2075         if (netif_running(netdev))
2076                 __qlcnic_up(adapter, netdev);
2077 out:
2078         netif_device_attach(netdev);
2079 }
2080
2081 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
2082 {
2083         struct qlcnic_hardware_context *ahw = adapter->ahw;
2084         int err = 0;
2085
2086         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
2087                                 GFP_KERNEL);
2088         if (!adapter->recv_ctx) {
2089                 err = -ENOMEM;
2090                 goto err_out;
2091         }
2092
2093         if (qlcnic_83xx_check(adapter)) {
2094                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
2095                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
2096                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
2097                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2098                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2099         } else {
2100                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
2101                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2102                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2103         }
2104
2105         /* clear stats */
2106         memset(&adapter->stats, 0, sizeof(adapter->stats));
2107 err_out:
2108         return err;
2109 }
2110
2111 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
2112 {
2113         struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
2114
2115         kfree(adapter->recv_ctx);
2116         adapter->recv_ctx = NULL;
2117
2118         if (fw_dump->tmpl_hdr) {
2119                 vfree(fw_dump->tmpl_hdr);
2120                 fw_dump->tmpl_hdr = NULL;
2121         }
2122
2123         if (fw_dump->dma_buffer) {
2124                 dma_free_coherent(&adapter->pdev->dev, QLC_PEX_DMA_READ_SIZE,
2125                                   fw_dump->dma_buffer, fw_dump->phys_addr);
2126                 fw_dump->dma_buffer = NULL;
2127         }
2128
2129         kfree(adapter->ahw->reset.buff);
2130         adapter->ahw->fw_dump.tmpl_hdr = NULL;
2131 }
2132
2133 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
2134 {
2135         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2136         struct qlcnic_host_sds_ring *sds_ring;
2137         struct qlcnic_host_rds_ring *rds_ring;
2138         int ring;
2139         int ret;
2140
2141         netif_device_detach(netdev);
2142
2143         if (netif_running(netdev))
2144                 __qlcnic_down(adapter, netdev);
2145
2146         qlcnic_detach(adapter);
2147
2148         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
2149         adapter->ahw->diag_test = test;
2150         adapter->ahw->linkup = 0;
2151
2152         ret = qlcnic_attach(adapter);
2153         if (ret) {
2154                 netif_device_attach(netdev);
2155                 return ret;
2156         }
2157
2158         ret = qlcnic_fw_create_ctx(adapter);
2159         if (ret) {
2160                 qlcnic_detach(adapter);
2161                 netif_device_attach(netdev);
2162                 return ret;
2163         }
2164
2165         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
2166                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
2167                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
2168         }
2169
2170         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2171                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2172                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
2173                         qlcnic_enable_sds_intr(adapter, sds_ring);
2174                 }
2175         }
2176
2177         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
2178                 adapter->ahw->loopback_state = 0;
2179                 qlcnic_linkevent_request(adapter, 1);
2180         }
2181
2182         set_bit(__QLCNIC_DEV_UP, &adapter->state);
2183
2184         return 0;
2185 }
2186
2187 /* Reset context in hardware only */
2188 static int
2189 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
2190 {
2191         struct net_device *netdev = adapter->netdev;
2192
2193         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2194                 return -EBUSY;
2195
2196         netif_device_detach(netdev);
2197
2198         qlcnic_down(adapter, netdev);
2199
2200         qlcnic_up(adapter, netdev);
2201
2202         netif_device_attach(netdev);
2203
2204         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2205         netdev_info(adapter->netdev, "%s: soft reset complete\n", __func__);
2206         return 0;
2207 }
2208
2209 int
2210 qlcnic_reset_context(struct qlcnic_adapter *adapter)
2211 {
2212         int err = 0;
2213         struct net_device *netdev = adapter->netdev;
2214
2215         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2216                 return -EBUSY;
2217
2218         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
2219
2220                 netif_device_detach(netdev);
2221
2222                 if (netif_running(netdev))
2223                         __qlcnic_down(adapter, netdev);
2224
2225                 qlcnic_detach(adapter);
2226
2227                 if (netif_running(netdev)) {
2228                         err = qlcnic_attach(adapter);
2229                         if (!err) {
2230                                 __qlcnic_up(adapter, netdev);
2231                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2232                         }
2233                 }
2234
2235                 netif_device_attach(netdev);
2236         }
2237
2238         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2239         return err;
2240 }
2241
2242 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
2243 {
2244         struct qlcnic_hardware_context *ahw = adapter->ahw;
2245         u16 act_pci_fn = ahw->total_nic_func;
2246         u16 count;
2247
2248         ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
2249         if (act_pci_fn <= 2)
2250                 count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
2251                          act_pci_fn;
2252         else
2253                 count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
2254                          act_pci_fn;
2255         ahw->max_uc_count = count;
2256 }
2257
2258 static int qlcnic_set_real_num_queues(struct qlcnic_adapter *adapter,
2259                                       u8 tx_queues, u8 rx_queues)
2260 {
2261         struct net_device *netdev = adapter->netdev;
2262         int err = 0;
2263
2264         if (tx_queues) {
2265                 err = netif_set_real_num_tx_queues(netdev, tx_queues);
2266                 if (err) {
2267                         netdev_err(netdev, "failed to set %d Tx queues\n",
2268                                    tx_queues);
2269                         return err;
2270                 }
2271         }
2272
2273         if (rx_queues) {
2274                 err = netif_set_real_num_rx_queues(netdev, rx_queues);
2275                 if (err)
2276                         netdev_err(netdev, "failed to set %d Rx queues\n",
2277                                    rx_queues);
2278         }
2279
2280         return err;
2281 }
2282
2283 int
2284 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
2285                     int pci_using_dac)
2286 {
2287         int err;
2288         struct pci_dev *pdev = adapter->pdev;
2289
2290         adapter->rx_csum = 1;
2291         adapter->ahw->mc_enabled = 0;
2292         qlcnic_set_mac_filter_count(adapter);
2293
2294         netdev->netdev_ops         = &qlcnic_netdev_ops;
2295         netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
2296
2297         qlcnic_change_mtu(netdev, netdev->mtu);
2298
2299         netdev->ethtool_ops = (qlcnic_sriov_vf_check(adapter)) ?
2300                 &qlcnic_sriov_vf_ethtool_ops : &qlcnic_ethtool_ops;
2301
2302         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2303                              NETIF_F_IPV6_CSUM | NETIF_F_GRO |
2304                              NETIF_F_HW_VLAN_CTAG_RX);
2305         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
2306                                   NETIF_F_IPV6_CSUM);
2307
2308         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
2309                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
2310                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
2311         }
2312
2313         if (pci_using_dac) {
2314                 netdev->features |= NETIF_F_HIGHDMA;
2315                 netdev->vlan_features |= NETIF_F_HIGHDMA;
2316         }
2317
2318         if (qlcnic_vlan_tx_check(adapter))
2319                 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
2320
2321         if (qlcnic_sriov_vf_check(adapter))
2322                 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2323
2324         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
2325                 netdev->features |= NETIF_F_LRO;
2326
2327         if (qlcnic_encap_tx_offload(adapter)) {
2328                 netdev->features |= NETIF_F_GSO_UDP_TUNNEL;
2329
2330                 /* encapsulation Tx offload supported by Adapter */
2331                 netdev->hw_enc_features = NETIF_F_IP_CSUM        |
2332                                           NETIF_F_GSO_UDP_TUNNEL |
2333                                           NETIF_F_TSO            |
2334                                           NETIF_F_TSO6;
2335         }
2336
2337         if (qlcnic_encap_rx_offload(adapter))
2338                 netdev->hw_enc_features |= NETIF_F_RXCSUM;
2339
2340         netdev->hw_features = netdev->features;
2341         netdev->priv_flags |= IFF_UNICAST_FLT;
2342         netdev->irq = adapter->msix_entries[0].vector;
2343
2344         /* MTU range: 68 - 9600 */
2345         netdev->min_mtu = P3P_MIN_MTU;
2346         netdev->max_mtu = P3P_MAX_MTU;
2347
2348         err = qlcnic_set_real_num_queues(adapter, adapter->drv_tx_rings,
2349                                          adapter->drv_sds_rings);
2350         if (err)
2351                 return err;
2352
2353         qlcnic_dcb_init_dcbnl_ops(adapter->dcb);
2354
2355         err = register_netdev(netdev);
2356         if (err) {
2357                 dev_err(&pdev->dev, "failed to register net device\n");
2358                 return err;
2359         }
2360
2361         return 0;
2362 }
2363
2364 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
2365 {
2366         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
2367                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
2368                 *pci_using_dac = 1;
2369         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
2370                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
2371                 *pci_using_dac = 0;
2372         else {
2373                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
2374                 return -EIO;
2375         }
2376
2377         return 0;
2378 }
2379
2380 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
2381 {
2382         int ring;
2383         struct qlcnic_host_tx_ring *tx_ring;
2384
2385         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2386                 tx_ring = &adapter->tx_ring[ring];
2387                 if (tx_ring) {
2388                         vfree(tx_ring->cmd_buf_arr);
2389                         tx_ring->cmd_buf_arr = NULL;
2390                 }
2391         }
2392         kfree(adapter->tx_ring);
2393 }
2394
2395 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
2396                           struct net_device *netdev)
2397 {
2398         int ring, vector, index;
2399         struct qlcnic_host_tx_ring *tx_ring;
2400         struct qlcnic_cmd_buffer *cmd_buf_arr;
2401
2402         tx_ring = kcalloc(adapter->drv_tx_rings,
2403                           sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
2404         if (tx_ring == NULL)
2405                 return -ENOMEM;
2406
2407         adapter->tx_ring = tx_ring;
2408
2409         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2410                 tx_ring = &adapter->tx_ring[ring];
2411                 tx_ring->num_desc = adapter->num_txd;
2412                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
2413                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
2414                 if (cmd_buf_arr == NULL) {
2415                         qlcnic_free_tx_rings(adapter);
2416                         return -ENOMEM;
2417                 }
2418                 tx_ring->cmd_buf_arr = cmd_buf_arr;
2419                 spin_lock_init(&tx_ring->tx_clean_lock);
2420         }
2421
2422         if (qlcnic_83xx_check(adapter) ||
2423             (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
2424                 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2425                         tx_ring = &adapter->tx_ring[ring];
2426                         tx_ring->adapter = adapter;
2427                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
2428                                 index = adapter->drv_sds_rings + ring;
2429                                 vector = adapter->msix_entries[index].vector;
2430                                 tx_ring->irq = vector;
2431                         }
2432                 }
2433         }
2434
2435         return 0;
2436 }
2437
2438 void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
2439 {
2440         struct qlcnic_hardware_context *ahw = adapter->ahw;
2441         u32 fw_cmd = 0;
2442
2443         if (qlcnic_82xx_check(adapter))
2444                 fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
2445         else if (qlcnic_83xx_check(adapter))
2446                 fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
2447
2448         if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER)
2449                 qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
2450 }
2451
2452 /* Reset firmware API lock */
2453 static void qlcnic_reset_api_lock(struct qlcnic_adapter *adapter)
2454 {
2455         qlcnic_api_lock(adapter);
2456         qlcnic_api_unlock(adapter);
2457 }
2458
2459
2460 static int
2461 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2462 {
2463         struct net_device *netdev = NULL;
2464         struct qlcnic_adapter *adapter = NULL;
2465         struct qlcnic_hardware_context *ahw;
2466         int err, pci_using_dac = -1;
2467         char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
2468
2469         err = pci_enable_device(pdev);
2470         if (err)
2471                 return err;
2472
2473         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2474                 err = -ENODEV;
2475                 goto err_out_disable_pdev;
2476         }
2477
2478         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
2479         if (err)
2480                 goto err_out_disable_pdev;
2481
2482         err = pci_request_regions(pdev, qlcnic_driver_name);
2483         if (err)
2484                 goto err_out_disable_pdev;
2485
2486         pci_set_master(pdev);
2487         pci_enable_pcie_error_reporting(pdev);
2488
2489         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2490         if (!ahw) {
2491                 err = -ENOMEM;
2492                 goto err_out_free_res;
2493         }
2494
2495         switch (ent->device) {
2496         case PCI_DEVICE_ID_QLOGIC_QLE824X:
2497                 ahw->hw_ops = &qlcnic_hw_ops;
2498                 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2499                 break;
2500         case PCI_DEVICE_ID_QLOGIC_QLE834X:
2501         case PCI_DEVICE_ID_QLOGIC_QLE8830:
2502         case PCI_DEVICE_ID_QLOGIC_QLE844X:
2503                 qlcnic_83xx_register_map(ahw);
2504                 break;
2505         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2506         case PCI_DEVICE_ID_QLOGIC_VF_QLE8C30:
2507         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2508                 qlcnic_sriov_vf_register_map(ahw);
2509                 break;
2510         default:
2511                 goto err_out_free_hw_res;
2512         }
2513
2514         err = qlcnic_setup_pci_map(pdev, ahw);
2515         if (err)
2516                 goto err_out_free_hw_res;
2517
2518         netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
2519                                    QLCNIC_MAX_TX_RINGS);
2520         if (!netdev) {
2521                 err = -ENOMEM;
2522                 goto err_out_iounmap;
2523         }
2524
2525         SET_NETDEV_DEV(netdev, &pdev->dev);
2526
2527         adapter = netdev_priv(netdev);
2528         adapter->netdev  = netdev;
2529         adapter->pdev    = pdev;
2530         adapter->ahw = ahw;
2531
2532         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2533         if (adapter->qlcnic_wq == NULL) {
2534                 err = -ENOMEM;
2535                 dev_err(&pdev->dev, "Failed to create workqueue\n");
2536                 goto err_out_free_netdev;
2537         }
2538
2539         err = qlcnic_alloc_adapter_resources(adapter);
2540         if (err)
2541                 goto err_out_free_wq;
2542
2543         adapter->dev_rst_time = jiffies;
2544         ahw->revision_id = pdev->revision;
2545         ahw->max_vnic_func = qlcnic_get_vnic_func_count(adapter);
2546         if (qlcnic_mac_learn == FDB_MAC_LEARN)
2547                 adapter->fdb_mac_learn = true;
2548         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2549                 adapter->drv_mac_learn = true;
2550
2551         rwlock_init(&adapter->ahw->crb_lock);
2552         mutex_init(&adapter->ahw->mem_lock);
2553
2554         INIT_LIST_HEAD(&adapter->mac_list);
2555
2556         qlcnic_register_dcb(adapter);
2557
2558         if (qlcnic_82xx_check(adapter)) {
2559                 qlcnic_check_vf(adapter, ent);
2560                 adapter->portnum = adapter->ahw->pci_func;
2561                 qlcnic_reset_api_lock(adapter);
2562                 err = qlcnic_start_firmware(adapter);
2563                 if (err) {
2564                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
2565                                 "\t\tIf reboot doesn't help, try flashing the card\n");
2566                         goto err_out_maintenance_mode;
2567                 }
2568
2569                 /* compute and set default and max tx/sds rings */
2570                 if (adapter->ahw->msix_supported) {
2571                         if (qlcnic_check_multi_tx_capability(adapter) == 1)
2572                                 qlcnic_set_tx_ring_count(adapter,
2573                                                          QLCNIC_SINGLE_RING);
2574                         else
2575                                 qlcnic_set_tx_ring_count(adapter,
2576                                                          QLCNIC_DEF_TX_RINGS);
2577                         qlcnic_set_sds_ring_count(adapter,
2578                                                   QLCNIC_DEF_SDS_RINGS);
2579                 } else {
2580                         qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
2581                         qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
2582                 }
2583
2584                 err = qlcnic_setup_idc_param(adapter);
2585                 if (err)
2586                         goto err_out_free_hw;
2587
2588                 adapter->flags |= QLCNIC_NEED_FLR;
2589
2590         } else if (qlcnic_83xx_check(adapter)) {
2591                 qlcnic_83xx_check_vf(adapter, ent);
2592                 adapter->portnum = adapter->ahw->pci_func;
2593                 err = qlcnic_83xx_init(adapter, pci_using_dac);
2594                 if (err) {
2595                         switch (err) {
2596                         case -ENOTRECOVERABLE:
2597                                 dev_err(&pdev->dev, "Adapter initialization failed due to a faulty hardware\n");
2598                                 dev_err(&pdev->dev, "Please replace the adapter with new one and return the faulty adapter for repair\n");
2599                                 goto err_out_free_hw;
2600                         case -ENOMEM:
2601                                 dev_err(&pdev->dev, "Adapter initialization failed. Please reboot\n");
2602                                 goto err_out_free_hw;
2603                         case -EOPNOTSUPP:
2604                                 dev_err(&pdev->dev, "Adapter initialization failed\n");
2605                                 goto err_out_free_hw;
2606                         default:
2607                                 dev_err(&pdev->dev, "Adapter initialization failed. Driver will load in maintenance mode to recover the adapter using the application\n");
2608                                 goto err_out_maintenance_mode;
2609                         }
2610                 }
2611
2612                 if (qlcnic_sriov_vf_check(adapter))
2613                         return 0;
2614         } else {
2615                 dev_err(&pdev->dev,
2616                         "%s: failed. Please Reboot\n", __func__);
2617                 err = -ENODEV;
2618                 goto err_out_free_hw;
2619         }
2620
2621         if (qlcnic_read_mac_addr(adapter))
2622                 dev_warn(&pdev->dev, "failed to read mac addr\n");
2623
2624         qlcnic_read_phys_port_id(adapter);
2625
2626         if (adapter->portnum == 0) {
2627                 qlcnic_get_board_name(adapter, board_name);
2628
2629                 pr_info("%s: %s Board Chip rev 0x%x\n",
2630                         module_name(THIS_MODULE),
2631                         board_name, adapter->ahw->revision_id);
2632         }
2633
2634         if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2635             !!qlcnic_use_msi)
2636                 dev_warn(&pdev->dev,
2637                          "Device does not support MSI interrupts\n");
2638
2639         if (qlcnic_82xx_check(adapter)) {
2640                 qlcnic_dcb_enable(adapter->dcb);
2641                 qlcnic_dcb_get_info(adapter->dcb);
2642                 err = qlcnic_setup_intr(adapter);
2643
2644                 if (err) {
2645                         dev_err(&pdev->dev, "Failed to setup interrupt\n");
2646                         goto err_out_disable_msi;
2647                 }
2648         }
2649
2650         err = qlcnic_get_act_pci_func(adapter);
2651         if (err)
2652                 goto err_out_disable_mbx_intr;
2653
2654         if (adapter->portnum == 0)
2655                 qlcnic_set_drv_version(adapter);
2656
2657         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2658         if (err)
2659                 goto err_out_disable_mbx_intr;
2660
2661         pci_set_drvdata(pdev, adapter);
2662
2663         if (qlcnic_82xx_check(adapter))
2664                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2665                                      FW_POLL_DELAY);
2666
2667         switch (adapter->ahw->port_type) {
2668         case QLCNIC_GBE:
2669                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2670                                 adapter->netdev->name);
2671                 break;
2672         case QLCNIC_XGBE:
2673                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2674                                 adapter->netdev->name);
2675                 break;
2676         }
2677
2678         if (adapter->drv_mac_learn)
2679                 qlcnic_alloc_lb_filters_mem(adapter);
2680
2681         qlcnic_add_sysfs(adapter);
2682         qlcnic_register_hwmon_dev(adapter);
2683         return 0;
2684
2685 err_out_disable_mbx_intr:
2686         if (qlcnic_83xx_check(adapter))
2687                 qlcnic_83xx_free_mbx_intr(adapter);
2688
2689 err_out_disable_msi:
2690         qlcnic_teardown_intr(adapter);
2691         qlcnic_cancel_idc_work(adapter);
2692         qlcnic_clr_all_drv_state(adapter, 0);
2693
2694 err_out_free_hw:
2695         qlcnic_free_adapter_resources(adapter);
2696
2697 err_out_free_wq:
2698         destroy_workqueue(adapter->qlcnic_wq);
2699
2700 err_out_free_netdev:
2701         free_netdev(netdev);
2702
2703 err_out_iounmap:
2704         qlcnic_cleanup_pci_map(ahw);
2705
2706 err_out_free_hw_res:
2707         kfree(ahw);
2708
2709 err_out_free_res:
2710         pci_release_regions(pdev);
2711
2712 err_out_disable_pdev:
2713         pci_disable_device(pdev);
2714         return err;
2715
2716 err_out_maintenance_mode:
2717         set_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state);
2718         netdev->netdev_ops = &qlcnic_netdev_failed_ops;
2719         netdev->ethtool_ops = &qlcnic_ethtool_failed_ops;
2720         ahw->port_type = QLCNIC_XGBE;
2721
2722         if (qlcnic_83xx_check(adapter))
2723                 adapter->tgt_status_reg = NULL;
2724         else
2725                 ahw->board_type = QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS;
2726
2727         err = register_netdev(netdev);
2728
2729         if (err) {
2730                 dev_err(&pdev->dev, "Failed to register net device\n");
2731                 qlcnic_clr_all_drv_state(adapter, 0);
2732                 goto err_out_free_hw;
2733         }
2734
2735         pci_set_drvdata(pdev, adapter);
2736         qlcnic_add_sysfs(adapter);
2737
2738         return 0;
2739 }
2740
2741 static void qlcnic_remove(struct pci_dev *pdev)
2742 {
2743         struct qlcnic_adapter *adapter;
2744         struct net_device *netdev;
2745         struct qlcnic_hardware_context *ahw;
2746
2747         adapter = pci_get_drvdata(pdev);
2748         if (adapter == NULL)
2749                 return;
2750
2751         netdev = adapter->netdev;
2752
2753         qlcnic_cancel_idc_work(adapter);
2754         qlcnic_sriov_pf_disable(adapter);
2755         ahw = adapter->ahw;
2756
2757         unregister_netdev(netdev);
2758         qlcnic_sriov_cleanup(adapter);
2759
2760         if (qlcnic_83xx_check(adapter)) {
2761                 qlcnic_83xx_initialize_nic(adapter, 0);
2762                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2763                 qlcnic_83xx_free_mbx_intr(adapter);
2764                 qlcnic_83xx_detach_mailbox_work(adapter);
2765                 qlcnic_83xx_free_mailbox(ahw->mailbox);
2766                 kfree(ahw->fw_info);
2767         }
2768
2769         qlcnic_dcb_free(adapter->dcb);
2770         qlcnic_detach(adapter);
2771         kfree(adapter->npars);
2772         kfree(adapter->eswitch);
2773
2774         if (qlcnic_82xx_check(adapter))
2775                 qlcnic_clr_all_drv_state(adapter, 0);
2776
2777         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2778
2779         qlcnic_free_lb_filters_mem(adapter);
2780
2781         qlcnic_teardown_intr(adapter);
2782
2783         qlcnic_remove_sysfs(adapter);
2784
2785         qlcnic_unregister_hwmon_dev(adapter);
2786
2787         qlcnic_cleanup_pci_map(adapter->ahw);
2788
2789         qlcnic_release_firmware(adapter);
2790
2791         pci_disable_pcie_error_reporting(pdev);
2792         pci_release_regions(pdev);
2793         pci_disable_device(pdev);
2794
2795         if (adapter->qlcnic_wq) {
2796                 destroy_workqueue(adapter->qlcnic_wq);
2797                 adapter->qlcnic_wq = NULL;
2798         }
2799
2800         qlcnic_free_adapter_resources(adapter);
2801         kfree(ahw);
2802         free_netdev(netdev);
2803 }
2804
2805 static void qlcnic_shutdown(struct pci_dev *pdev)
2806 {
2807         if (__qlcnic_shutdown(pdev))
2808                 return;
2809
2810         pci_disable_device(pdev);
2811 }
2812
2813 #ifdef CONFIG_PM
2814 static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2815 {
2816         int retval;
2817
2818         retval = __qlcnic_shutdown(pdev);
2819         if (retval)
2820                 return retval;
2821
2822         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2823         return 0;
2824 }
2825
2826 static int qlcnic_resume(struct pci_dev *pdev)
2827 {
2828         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2829         int err;
2830
2831         err = pci_enable_device(pdev);
2832         if (err)
2833                 return err;
2834
2835         pci_set_power_state(pdev, PCI_D0);
2836         pci_set_master(pdev);
2837         pci_restore_state(pdev);
2838
2839         return  __qlcnic_resume(adapter);
2840 }
2841 #endif
2842
2843 static int qlcnic_open(struct net_device *netdev)
2844 {
2845         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2846         int err;
2847
2848         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
2849                 netdev_err(netdev, "%s: Device is in non-operational state\n",
2850                            __func__);
2851
2852                 return -EIO;
2853         }
2854
2855         netif_carrier_off(netdev);
2856
2857         err = qlcnic_attach(adapter);
2858         if (err)
2859                 return err;
2860
2861         err = __qlcnic_up(adapter, netdev);
2862         if (err)
2863                 qlcnic_detach(adapter);
2864
2865         return err;
2866 }
2867
2868 /*
2869  * qlcnic_close - Disables a network interface entry point
2870  */
2871 static int qlcnic_close(struct net_device *netdev)
2872 {
2873         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2874
2875         __qlcnic_down(adapter, netdev);
2876
2877         return 0;
2878 }
2879
2880 #define QLCNIC_VF_LB_BUCKET_SIZE 1
2881
2882 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2883 {
2884         void *head;
2885         int i;
2886         struct net_device *netdev = adapter->netdev;
2887         u32 filter_size = 0;
2888         u16 act_pci_func = 0;
2889
2890         if (adapter->fhash.fmax && adapter->fhash.fhead)
2891                 return;
2892
2893         act_pci_func = adapter->ahw->total_nic_func;
2894         spin_lock_init(&adapter->mac_learn_lock);
2895         spin_lock_init(&adapter->rx_mac_learn_lock);
2896
2897         if (qlcnic_sriov_vf_check(adapter)) {
2898                 filter_size = QLCNIC_83XX_SRIOV_VF_MAX_MAC - 1;
2899                 adapter->fhash.fbucket_size = QLCNIC_VF_LB_BUCKET_SIZE;
2900         } else if (qlcnic_82xx_check(adapter)) {
2901                 filter_size = QLCNIC_LB_MAX_FILTERS;
2902                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2903         } else {
2904                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2905                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2906         }
2907
2908         head = kcalloc(adapter->fhash.fbucket_size,
2909                        sizeof(struct hlist_head), GFP_ATOMIC);
2910
2911         if (!head)
2912                 return;
2913
2914         adapter->fhash.fmax = (filter_size / act_pci_func);
2915         adapter->fhash.fhead = head;
2916
2917         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2918                     act_pci_func, adapter->fhash.fmax);
2919
2920         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2921                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2922
2923         adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2924
2925         head = kcalloc(adapter->rx_fhash.fbucket_size,
2926                        sizeof(struct hlist_head), GFP_ATOMIC);
2927
2928         if (!head)
2929                 return;
2930
2931         adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2932         adapter->rx_fhash.fhead = head;
2933
2934         for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2935                 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2936 }
2937
2938 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2939 {
2940         if (adapter->fhash.fmax)
2941                 kfree(adapter->fhash.fhead);
2942
2943         adapter->fhash.fhead = NULL;
2944         adapter->fhash.fmax = 0;
2945
2946         if (adapter->rx_fhash.fmax)
2947                 kfree(adapter->rx_fhash.fhead);
2948
2949         adapter->rx_fhash.fmax = 0;
2950         adapter->rx_fhash.fhead = NULL;
2951 }
2952
2953 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2954 {
2955         struct net_device *netdev = adapter->netdev;
2956         u32 temp_state, temp_val, temp = 0;
2957         int rv = 0;
2958
2959         if (qlcnic_83xx_check(adapter))
2960                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2961
2962         if (qlcnic_82xx_check(adapter))
2963                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2964
2965         temp_state = qlcnic_get_temp_state(temp);
2966         temp_val = qlcnic_get_temp_val(temp);
2967
2968         if (temp_state == QLCNIC_TEMP_PANIC) {
2969                 dev_err(&netdev->dev,
2970                        "Device temperature %d degrees C exceeds"
2971                        " maximum allowed. Hardware has been shut down.\n",
2972                        temp_val);
2973                 rv = 1;
2974         } else if (temp_state == QLCNIC_TEMP_WARN) {
2975                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2976                         dev_err(&netdev->dev,
2977                                "Device temperature %d degrees C "
2978                                "exceeds operating range."
2979                                " Immediate action needed.\n",
2980                                temp_val);
2981                 }
2982         } else {
2983                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2984                         dev_info(&netdev->dev,
2985                                "Device temperature is now %d degrees C"
2986                                " in normal range.\n", temp_val);
2987                 }
2988         }
2989         adapter->ahw->temp = temp_state;
2990         return rv;
2991 }
2992
2993 static inline void dump_tx_ring_desc(struct qlcnic_host_tx_ring *tx_ring)
2994 {
2995         int i;
2996
2997         for (i = 0; i < tx_ring->num_desc; i++) {
2998                 pr_info("TX Desc: %d\n", i);
2999                 print_hex_dump(KERN_INFO, "TX: ", DUMP_PREFIX_OFFSET, 16, 1,
3000                                &tx_ring->desc_head[i],
3001                                sizeof(struct cmd_desc_type0), true);
3002         }
3003 }
3004
3005 static void qlcnic_dump_rings(struct qlcnic_adapter *adapter)
3006 {
3007         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
3008         struct net_device *netdev = adapter->netdev;
3009         struct qlcnic_host_rds_ring *rds_ring;
3010         struct qlcnic_host_sds_ring *sds_ring;
3011         struct qlcnic_host_tx_ring *tx_ring;
3012         int ring;
3013
3014         if (!netdev || !netif_running(netdev))
3015                 return;
3016
3017         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
3018                 rds_ring = &recv_ctx->rds_rings[ring];
3019                 if (!rds_ring)
3020                         continue;
3021                 netdev_info(netdev,
3022                             "rds_ring=%d crb_rcv_producer=%d producer=%u num_desc=%u\n",
3023                              ring, readl(rds_ring->crb_rcv_producer),
3024                              rds_ring->producer, rds_ring->num_desc);
3025         }
3026
3027         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3028                 sds_ring = &(recv_ctx->sds_rings[ring]);
3029                 if (!sds_ring)
3030                         continue;
3031                 netdev_info(netdev,
3032                             "sds_ring=%d crb_sts_consumer=%d consumer=%u crb_intr_mask=%d num_desc=%u\n",
3033                             ring, readl(sds_ring->crb_sts_consumer),
3034                             sds_ring->consumer, readl(sds_ring->crb_intr_mask),
3035                             sds_ring->num_desc);
3036         }
3037
3038         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3039                 tx_ring = &adapter->tx_ring[ring];
3040                 if (!tx_ring)
3041                         continue;
3042                 netdev_info(netdev, "Tx ring=%d Context Id=0x%x\n",
3043                             ring, tx_ring->ctx_id);
3044                 netdev_info(netdev,
3045                             "xmit_finished=%llu, xmit_called=%llu, xmit_on=%llu, xmit_off=%llu\n",
3046                             tx_ring->tx_stats.xmit_finished,
3047                             tx_ring->tx_stats.xmit_called,
3048                             tx_ring->tx_stats.xmit_on,
3049                             tx_ring->tx_stats.xmit_off);
3050
3051                 if (tx_ring->crb_intr_mask)
3052                         netdev_info(netdev, "crb_intr_mask=%d\n",
3053                                     readl(tx_ring->crb_intr_mask));
3054
3055                 netdev_info(netdev,
3056                             "hw_producer=%d, sw_producer=%d sw_consumer=%d, hw_consumer=%d\n",
3057                             readl(tx_ring->crb_cmd_producer),
3058                             tx_ring->producer, tx_ring->sw_consumer,
3059                             le32_to_cpu(*(tx_ring->hw_consumer)));
3060
3061                 netdev_info(netdev, "Total desc=%d, Available desc=%d\n",
3062                             tx_ring->num_desc, qlcnic_tx_avail(tx_ring));
3063
3064                 if (netif_msg_tx_err(adapter->ahw))
3065                         dump_tx_ring_desc(tx_ring);
3066         }
3067
3068 }
3069
3070 static void qlcnic_tx_timeout(struct net_device *netdev)
3071 {
3072         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3073
3074         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3075                 return;
3076
3077         qlcnic_dump_rings(adapter);
3078
3079         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS ||
3080             netif_msg_tx_err(adapter->ahw)) {
3081                 netdev_err(netdev, "Tx timeout, reset the adapter.\n");
3082                 if (qlcnic_82xx_check(adapter))
3083                         adapter->need_fw_reset = 1;
3084                 else if (qlcnic_83xx_check(adapter))
3085                         qlcnic_83xx_idc_request_reset(adapter,
3086                                                       QLCNIC_FORCE_FW_DUMP_KEY);
3087         } else {
3088                 netdev_err(netdev, "Tx timeout, reset adapter context.\n");
3089                 adapter->ahw->reset_context = 1;
3090         }
3091 }
3092
3093 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
3094 {
3095         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3096         struct net_device_stats *stats = &netdev->stats;
3097
3098         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
3099                 qlcnic_update_stats(adapter);
3100
3101         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
3102         stats->tx_packets = adapter->stats.xmitfinished;
3103         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
3104         stats->tx_bytes = adapter->stats.txbytes;
3105         stats->rx_dropped = adapter->stats.rxdropped;
3106         stats->tx_dropped = adapter->stats.txdropped;
3107
3108         return stats;
3109 }
3110
3111 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
3112 {
3113         u32 status;
3114
3115         status = readl(adapter->isr_int_vec);
3116
3117         if (!(status & adapter->ahw->int_vec_bit))
3118                 return IRQ_NONE;
3119
3120         /* check interrupt state machine, to be sure */
3121         status = readl(adapter->crb_int_state_reg);
3122         if (!ISR_LEGACY_INT_TRIGGERED(status))
3123                 return IRQ_NONE;
3124
3125         writel(0xffffffff, adapter->tgt_status_reg);
3126         /* read twice to ensure write is flushed */
3127         readl(adapter->isr_int_vec);
3128         readl(adapter->isr_int_vec);
3129
3130         return IRQ_HANDLED;
3131 }
3132
3133 static irqreturn_t qlcnic_tmp_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 (adapter->flags & QLCNIC_MSIX_ENABLED)
3139                 goto done;
3140         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
3141                 writel(0xffffffff, adapter->tgt_status_reg);
3142                 goto done;
3143         }
3144
3145         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3146                 return IRQ_NONE;
3147
3148 done:
3149         adapter->ahw->diag_cnt++;
3150         qlcnic_enable_sds_intr(adapter, sds_ring);
3151         return IRQ_HANDLED;
3152 }
3153
3154 static irqreturn_t qlcnic_intr(int irq, void *data)
3155 {
3156         struct qlcnic_host_sds_ring *sds_ring = data;
3157         struct qlcnic_adapter *adapter = sds_ring->adapter;
3158
3159         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3160                 return IRQ_NONE;
3161
3162         napi_schedule(&sds_ring->napi);
3163
3164         return IRQ_HANDLED;
3165 }
3166
3167 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
3168 {
3169         struct qlcnic_host_sds_ring *sds_ring = data;
3170         struct qlcnic_adapter *adapter = sds_ring->adapter;
3171
3172         /* clear interrupt */
3173         writel(0xffffffff, adapter->tgt_status_reg);
3174
3175         napi_schedule(&sds_ring->napi);
3176         return IRQ_HANDLED;
3177 }
3178
3179 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
3180 {
3181         struct qlcnic_host_sds_ring *sds_ring = data;
3182
3183         napi_schedule(&sds_ring->napi);
3184         return IRQ_HANDLED;
3185 }
3186
3187 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
3188 {
3189         struct qlcnic_host_tx_ring *tx_ring = data;
3190
3191         napi_schedule(&tx_ring->napi);
3192         return IRQ_HANDLED;
3193 }
3194
3195 static void
3196 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
3197 {
3198         u32 val;
3199
3200         val = adapter->portnum & 0xf;
3201         val |= encoding << 7;
3202         val |= (jiffies - adapter->dev_rst_time) << 8;
3203
3204         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
3205         adapter->dev_rst_time = jiffies;
3206 }
3207
3208 static int
3209 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
3210 {
3211         u32  val;
3212
3213         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
3214                         state != QLCNIC_DEV_NEED_QUISCENT);
3215
3216         if (qlcnic_api_lock(adapter))
3217                 return -EIO;
3218
3219         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3220
3221         if (state == QLCNIC_DEV_NEED_RESET)
3222                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3223         else if (state == QLCNIC_DEV_NEED_QUISCENT)
3224                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
3225
3226         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3227
3228         qlcnic_api_unlock(adapter);
3229
3230         return 0;
3231 }
3232
3233 static int
3234 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
3235 {
3236         u32  val;
3237
3238         if (qlcnic_api_lock(adapter))
3239                 return -EBUSY;
3240
3241         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3242         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3243         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3244
3245         qlcnic_api_unlock(adapter);
3246
3247         return 0;
3248 }
3249
3250 void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
3251 {
3252         u32  val;
3253
3254         if (qlcnic_api_lock(adapter))
3255                 goto err;
3256
3257         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3258         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
3259         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3260
3261         if (failed) {
3262                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3263                                     QLCNIC_DEV_FAILED);
3264                 dev_info(&adapter->pdev->dev,
3265                                 "Device state set to Failed. Please Reboot\n");
3266         } else if (!(val & 0x11111111))
3267                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3268                                     QLCNIC_DEV_COLD);
3269
3270         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3271         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3272         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3273
3274         qlcnic_api_unlock(adapter);
3275 err:
3276         adapter->fw_fail_cnt = 0;
3277         adapter->flags &= ~QLCNIC_FW_HANG;
3278         clear_bit(__QLCNIC_START_FW, &adapter->state);
3279         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3280 }
3281
3282 /* Grab api lock, before checking state */
3283 static int
3284 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
3285 {
3286         int act, state, active_mask;
3287         struct qlcnic_hardware_context *ahw = adapter->ahw;
3288
3289         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3290         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3291
3292         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
3293                 active_mask = (~(1 << (ahw->pci_func * 4)));
3294                 act = act & active_mask;
3295         }
3296
3297         if (((state & 0x11111111) == (act & 0x11111111)) ||
3298                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
3299                 return 0;
3300         else
3301                 return 1;
3302 }
3303
3304 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
3305 {
3306         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
3307
3308         if (val != QLCNIC_DRV_IDC_VER) {
3309                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
3310                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
3311         }
3312
3313         return 0;
3314 }
3315
3316 static int
3317 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
3318 {
3319         u32 val, prev_state;
3320         u8 dev_init_timeo = adapter->dev_init_timeo;
3321         u8 portnum = adapter->portnum;
3322         u8 ret;
3323
3324         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
3325                 return 1;
3326
3327         if (qlcnic_api_lock(adapter))
3328                 return -1;
3329
3330         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3331         if (!(val & (1 << (portnum * 4)))) {
3332                 QLC_DEV_SET_REF_CNT(val, portnum);
3333                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3334         }
3335
3336         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3337         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
3338
3339         switch (prev_state) {
3340         case QLCNIC_DEV_COLD:
3341                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3342                                     QLCNIC_DEV_INITIALIZING);
3343                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
3344                                     QLCNIC_DRV_IDC_VER);
3345                 qlcnic_idc_debug_info(adapter, 0);
3346                 qlcnic_api_unlock(adapter);
3347                 return 1;
3348
3349         case QLCNIC_DEV_READY:
3350                 ret = qlcnic_check_idc_ver(adapter);
3351                 qlcnic_api_unlock(adapter);
3352                 return ret;
3353
3354         case QLCNIC_DEV_NEED_RESET:
3355                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3356                 QLC_DEV_SET_RST_RDY(val, portnum);
3357                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3358                 break;
3359
3360         case QLCNIC_DEV_NEED_QUISCENT:
3361                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3362                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
3363                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3364                 break;
3365
3366         case QLCNIC_DEV_FAILED:
3367                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
3368                 qlcnic_api_unlock(adapter);
3369                 return -1;
3370
3371         case QLCNIC_DEV_INITIALIZING:
3372         case QLCNIC_DEV_QUISCENT:
3373                 break;
3374         }
3375
3376         qlcnic_api_unlock(adapter);
3377
3378         do {
3379                 msleep(1000);
3380                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3381
3382                 if (prev_state == QLCNIC_DEV_QUISCENT)
3383                         continue;
3384         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
3385
3386         if (!dev_init_timeo) {
3387                 dev_err(&adapter->pdev->dev,
3388                         "Waiting for device to initialize timeout\n");
3389                 return -1;
3390         }
3391
3392         if (qlcnic_api_lock(adapter))
3393                 return -1;
3394
3395         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3396         QLC_DEV_CLR_RST_QSCNT(val, portnum);
3397         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3398
3399         ret = qlcnic_check_idc_ver(adapter);
3400         qlcnic_api_unlock(adapter);
3401
3402         return ret;
3403 }
3404
3405 static void
3406 qlcnic_fwinit_work(struct work_struct *work)
3407 {
3408         struct qlcnic_adapter *adapter = container_of(work,
3409                         struct qlcnic_adapter, fw_work.work);
3410         u32 dev_state = 0xf;
3411         u32 val;
3412
3413         if (qlcnic_api_lock(adapter))
3414                 goto err_ret;
3415
3416         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3417         if (dev_state == QLCNIC_DEV_QUISCENT ||
3418             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3419                 qlcnic_api_unlock(adapter);
3420                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
3421                                                 FW_POLL_DELAY * 2);
3422                 return;
3423         }
3424
3425         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
3426                 qlcnic_api_unlock(adapter);
3427                 goto wait_npar;
3428         }
3429
3430         if (dev_state == QLCNIC_DEV_INITIALIZING ||
3431             dev_state == QLCNIC_DEV_READY) {
3432                 dev_info(&adapter->pdev->dev, "Detected state change from "
3433                                 "DEV_NEED_RESET, skipping ack check\n");
3434                 goto skip_ack_check;
3435         }
3436
3437         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
3438                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
3439                                         adapter->reset_ack_timeo);
3440                 goto skip_ack_check;
3441         }
3442
3443         if (!qlcnic_check_drv_state(adapter)) {
3444 skip_ack_check:
3445                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3446
3447                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
3448                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3449                                             QLCNIC_DEV_INITIALIZING);
3450                         set_bit(__QLCNIC_START_FW, &adapter->state);
3451                         QLCDB(adapter, DRV, "Restarting fw\n");
3452                         qlcnic_idc_debug_info(adapter, 0);
3453                         val = QLC_SHARED_REG_RD32(adapter,
3454                                                   QLCNIC_CRB_DRV_STATE);
3455                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3456                         QLC_SHARED_REG_WR32(adapter,
3457                                             QLCNIC_CRB_DRV_STATE, val);
3458                 }
3459
3460                 qlcnic_api_unlock(adapter);
3461
3462                 rtnl_lock();
3463                 if (qlcnic_check_fw_dump_state(adapter) &&
3464                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3465                         QLCDB(adapter, DRV, "Take FW dump\n");
3466                         qlcnic_dump_fw(adapter);
3467                         adapter->flags |= QLCNIC_FW_HANG;
3468                 }
3469                 rtnl_unlock();
3470
3471                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
3472                 if (!adapter->nic_ops->start_firmware(adapter)) {
3473                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3474                         adapter->fw_wait_cnt = 0;
3475                         return;
3476                 }
3477                 goto err_ret;
3478         }
3479
3480         qlcnic_api_unlock(adapter);
3481
3482 wait_npar:
3483         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3484         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
3485
3486         switch (dev_state) {
3487         case QLCNIC_DEV_READY:
3488                 if (!qlcnic_start_firmware(adapter)) {
3489                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3490                         adapter->fw_wait_cnt = 0;
3491                         return;
3492                 }
3493         case QLCNIC_DEV_FAILED:
3494                 break;
3495         default:
3496                 qlcnic_schedule_work(adapter,
3497                         qlcnic_fwinit_work, FW_POLL_DELAY);
3498                 return;
3499         }
3500
3501 err_ret:
3502         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
3503                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
3504         netif_device_attach(adapter->netdev);
3505         qlcnic_clr_all_drv_state(adapter, 0);
3506 }
3507
3508 static void
3509 qlcnic_detach_work(struct work_struct *work)
3510 {
3511         struct qlcnic_adapter *adapter = container_of(work,
3512                         struct qlcnic_adapter, fw_work.work);
3513         struct net_device *netdev = adapter->netdev;
3514         u32 status;
3515
3516         netif_device_detach(netdev);
3517
3518         /* Dont grab rtnl lock during Quiscent mode */
3519         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3520                 if (netif_running(netdev))
3521                         __qlcnic_down(adapter, netdev);
3522         } else
3523                 qlcnic_down(adapter, netdev);
3524
3525         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3526
3527         if (status & QLCNIC_RCODE_FATAL_ERROR) {
3528                 dev_err(&adapter->pdev->dev,
3529                         "Detaching the device: peg halt status1=0x%x\n",
3530                                         status);
3531
3532                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
3533                         dev_err(&adapter->pdev->dev,
3534                         "On board active cooling fan failed. "
3535                                 "Device has been halted.\n");
3536                         dev_err(&adapter->pdev->dev,
3537                                 "Replace the adapter.\n");
3538                 }
3539
3540                 goto err_ret;
3541         }
3542
3543         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
3544                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
3545                         adapter->ahw->temp);
3546                 goto err_ret;
3547         }
3548
3549         /* Dont ack if this instance is the reset owner */
3550         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3551                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
3552                         dev_err(&adapter->pdev->dev,
3553                                 "Failed to set driver state,"
3554                                         "detaching the device.\n");
3555                         goto err_ret;
3556                 }
3557         }
3558
3559         adapter->fw_wait_cnt = 0;
3560
3561         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3562
3563         return;
3564
3565 err_ret:
3566         netif_device_attach(netdev);
3567         qlcnic_clr_all_drv_state(adapter, 1);
3568 }
3569
3570 /*Transit NPAR state to NON Operational */
3571 static void
3572 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3573 {
3574         u32 state;
3575
3576         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3577         if (state == QLCNIC_DEV_NPAR_NON_OPER)
3578                 return;
3579
3580         if (qlcnic_api_lock(adapter))
3581                 return;
3582         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3583                             QLCNIC_DEV_NPAR_NON_OPER);
3584         qlcnic_api_unlock(adapter);
3585 }
3586
3587 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter,
3588                                           u32 key)
3589 {
3590         u32 state, xg_val = 0, gb_val = 0;
3591
3592         qlcnic_xg_set_xg0_mask(xg_val);
3593         qlcnic_xg_set_xg1_mask(xg_val);
3594         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3595         qlcnic_gb_set_gb0_mask(gb_val);
3596         qlcnic_gb_set_gb1_mask(gb_val);
3597         qlcnic_gb_set_gb2_mask(gb_val);
3598         qlcnic_gb_set_gb3_mask(gb_val);
3599         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3600         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3601                                 " on all ports\n");
3602         adapter->need_fw_reset = 1;
3603
3604         if (qlcnic_api_lock(adapter))
3605                 return;
3606
3607         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3608
3609         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
3610                 netdev_err(adapter->netdev, "%s: Device is in non-operational state\n",
3611                            __func__);
3612                 qlcnic_api_unlock(adapter);
3613
3614                 return;
3615         }
3616
3617         if (state == QLCNIC_DEV_READY) {
3618                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3619                                     QLCNIC_DEV_NEED_RESET);
3620                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3621                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3622                 qlcnic_idc_debug_info(adapter, 0);
3623         }
3624
3625         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3626                             QLCNIC_DEV_NPAR_NON_OPER);
3627         qlcnic_api_unlock(adapter);
3628 }
3629
3630 /* Transit to NPAR READY state from NPAR NOT READY state */
3631 static void
3632 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3633 {
3634         if (qlcnic_api_lock(adapter))
3635                 return;
3636
3637         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3638                             QLCNIC_DEV_NPAR_OPER);
3639         QLCDB(adapter, DRV, "NPAR operational state set\n");
3640
3641         qlcnic_api_unlock(adapter);
3642 }
3643
3644 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3645                           work_func_t func, int delay)
3646 {
3647         if (test_bit(__QLCNIC_AER, &adapter->state))
3648                 return;
3649
3650         INIT_DELAYED_WORK(&adapter->fw_work, func);
3651         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3652                            round_jiffies_relative(delay));
3653 }
3654
3655 static void
3656 qlcnic_attach_work(struct work_struct *work)
3657 {
3658         struct qlcnic_adapter *adapter = container_of(work,
3659                                 struct qlcnic_adapter, fw_work.work);
3660         struct net_device *netdev = adapter->netdev;
3661         u32 npar_state;
3662
3663         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3664                 npar_state = QLC_SHARED_REG_RD32(adapter,
3665                                                  QLCNIC_CRB_DEV_NPAR_STATE);
3666                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3667                         qlcnic_clr_all_drv_state(adapter, 0);
3668                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3669                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
3670                                                         FW_POLL_DELAY);
3671                 else
3672                         goto attach;
3673                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3674                 return;
3675         }
3676 attach:
3677         qlcnic_dcb_get_info(adapter->dcb);
3678
3679         if (netif_running(netdev)) {
3680                 if (qlcnic_up(adapter, netdev))
3681                         goto done;
3682
3683                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3684         }
3685
3686 done:
3687         netif_device_attach(netdev);
3688         adapter->fw_fail_cnt = 0;
3689         adapter->flags &= ~QLCNIC_FW_HANG;
3690         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3691         if (adapter->portnum == 0)
3692                 qlcnic_set_drv_version(adapter);
3693
3694         if (!qlcnic_clr_drv_state(adapter))
3695                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3696                                                         FW_POLL_DELAY);
3697 }
3698
3699 static int
3700 qlcnic_check_health(struct qlcnic_adapter *adapter)
3701 {
3702         struct qlcnic_hardware_context *ahw = adapter->ahw;
3703         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
3704         u32 state = 0, heartbeat;
3705         u32 peg_status;
3706         int err = 0;
3707
3708         if (qlcnic_check_temp(adapter))
3709                 goto detach;
3710
3711         if (adapter->need_fw_reset)
3712                 qlcnic_dev_request_reset(adapter, 0);
3713
3714         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3715         if (state == QLCNIC_DEV_NEED_RESET) {
3716                 qlcnic_set_npar_non_operational(adapter);
3717                 adapter->need_fw_reset = 1;
3718         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3719                 goto detach;
3720
3721         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3722         if (heartbeat != adapter->heartbeat) {
3723                 adapter->heartbeat = heartbeat;
3724                 adapter->fw_fail_cnt = 0;
3725                 if (adapter->need_fw_reset)
3726                         goto detach;
3727
3728                 if (ahw->reset_context && qlcnic_auto_fw_reset)
3729                         qlcnic_reset_hw_context(adapter);
3730
3731                 return 0;
3732         }
3733
3734         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3735                 return 0;
3736
3737         adapter->flags |= QLCNIC_FW_HANG;
3738
3739         qlcnic_dev_request_reset(adapter, 0);
3740
3741         if (qlcnic_auto_fw_reset)
3742                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3743
3744         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3745         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3746         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3747                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3748                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3749                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3750                         "PEG_NET_4_PC: 0x%x\n",
3751                         peg_status,
3752                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3753                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3754                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3755                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3756                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3757                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3758         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3759                 dev_err(&adapter->pdev->dev,
3760                         "Firmware aborted with error code 0x00006700. "
3761                                 "Device is being reset.\n");
3762 detach:
3763         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3764                 QLCNIC_DEV_NEED_RESET;
3765
3766         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3767                                                       &adapter->state)) {
3768
3769                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3770                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3771         } else if (!qlcnic_auto_fw_reset && fw_dump->enable &&
3772                    adapter->flags & QLCNIC_FW_RESET_OWNER) {
3773                 qlcnic_dump_fw(adapter);
3774         }
3775
3776         return 1;
3777 }
3778
3779 void qlcnic_fw_poll_work(struct work_struct *work)
3780 {
3781         struct qlcnic_adapter *adapter = container_of(work,
3782                                 struct qlcnic_adapter, fw_work.work);
3783
3784         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3785                 goto reschedule;
3786
3787
3788         if (qlcnic_check_health(adapter))
3789                 return;
3790
3791         if (adapter->fhash.fnum)
3792                 qlcnic_prune_lb_filters(adapter);
3793
3794 reschedule:
3795         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3796 }
3797
3798 static int qlcnic_is_first_func(struct pci_dev *pdev)
3799 {
3800         struct pci_dev *oth_pdev;
3801         int val = pdev->devfn;
3802
3803         while (val-- > 0) {
3804                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3805                         (pdev->bus), pdev->bus->number,
3806                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3807                 if (!oth_pdev)
3808                         continue;
3809
3810                 if (oth_pdev->current_state != PCI_D3cold) {
3811                         pci_dev_put(oth_pdev);
3812                         return 0;
3813                 }
3814                 pci_dev_put(oth_pdev);
3815         }
3816         return 1;
3817 }
3818
3819 static int qlcnic_attach_func(struct pci_dev *pdev)
3820 {
3821         int err, first_func;
3822         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3823         struct net_device *netdev = adapter->netdev;
3824
3825         pdev->error_state = pci_channel_io_normal;
3826
3827         err = pci_enable_device(pdev);
3828         if (err)
3829                 return err;
3830
3831         pci_set_master(pdev);
3832         pci_restore_state(pdev);
3833
3834         first_func = qlcnic_is_first_func(pdev);
3835
3836         if (qlcnic_api_lock(adapter))
3837                 return -EINVAL;
3838
3839         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3840                 adapter->need_fw_reset = 1;
3841                 set_bit(__QLCNIC_START_FW, &adapter->state);
3842                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3843                                     QLCNIC_DEV_INITIALIZING);
3844                 QLCDB(adapter, DRV, "Restarting fw\n");
3845         }
3846         qlcnic_api_unlock(adapter);
3847
3848         err = qlcnic_start_firmware(adapter);
3849         if (err)
3850                 return err;
3851
3852         qlcnic_clr_drv_state(adapter);
3853         kfree(adapter->msix_entries);
3854         adapter->msix_entries = NULL;
3855         err = qlcnic_setup_intr(adapter);
3856
3857         if (err) {
3858                 kfree(adapter->msix_entries);
3859                 netdev_err(netdev, "failed to setup interrupt\n");
3860                 return err;
3861         }
3862
3863         if (netif_running(netdev)) {
3864                 err = qlcnic_attach(adapter);
3865                 if (err) {
3866                         qlcnic_clr_all_drv_state(adapter, 1);
3867                         clear_bit(__QLCNIC_AER, &adapter->state);
3868                         netif_device_attach(netdev);
3869                         return err;
3870                 }
3871
3872                 err = qlcnic_up(adapter, netdev);
3873                 if (err)
3874                         goto done;
3875
3876                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3877         }
3878  done:
3879         netif_device_attach(netdev);
3880         return err;
3881 }
3882
3883 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
3884                                                       pci_channel_state_t state)
3885 {
3886         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3887         struct net_device *netdev = adapter->netdev;
3888
3889         if (state == pci_channel_io_perm_failure)
3890                 return PCI_ERS_RESULT_DISCONNECT;
3891
3892         if (state == pci_channel_io_normal)
3893                 return PCI_ERS_RESULT_RECOVERED;
3894
3895         set_bit(__QLCNIC_AER, &adapter->state);
3896         netif_device_detach(netdev);
3897
3898         cancel_delayed_work_sync(&adapter->fw_work);
3899
3900         if (netif_running(netdev))
3901                 qlcnic_down(adapter, netdev);
3902
3903         qlcnic_detach(adapter);
3904         qlcnic_teardown_intr(adapter);
3905
3906         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3907
3908         pci_save_state(pdev);
3909         pci_disable_device(pdev);
3910
3911         return PCI_ERS_RESULT_NEED_RESET;
3912 }
3913
3914 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
3915 {
3916         pci_ers_result_t res;
3917
3918         rtnl_lock();
3919         res = qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3920                                          PCI_ERS_RESULT_RECOVERED;
3921         rtnl_unlock();
3922
3923         return res;
3924 }
3925
3926 static void qlcnic_82xx_io_resume(struct pci_dev *pdev)
3927 {
3928         u32 state;
3929         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3930
3931         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3932         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3933                                                             &adapter->state))
3934                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3935                                      FW_POLL_DELAY);
3936 }
3937
3938 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3939                                                  pci_channel_state_t state)
3940 {
3941         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3942         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3943
3944         if (hw_ops->io_error_detected) {
3945                 return hw_ops->io_error_detected(pdev, state);
3946         } else {
3947                 dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
3948                 return PCI_ERS_RESULT_DISCONNECT;
3949         }
3950 }
3951
3952 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
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_slot_reset) {
3958                 return hw_ops->io_slot_reset(pdev);
3959         } else {
3960                 dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
3961                 return PCI_ERS_RESULT_DISCONNECT;
3962         }
3963 }
3964
3965 static void qlcnic_io_resume(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_resume)
3971                 hw_ops->io_resume(pdev);
3972         else
3973                 dev_err(&pdev->dev, "AER resume handler not registered.\n");
3974 }
3975
3976
3977 static int
3978 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3979 {
3980         int err;
3981
3982         err = qlcnic_can_start_firmware(adapter);
3983         if (err)
3984                 return err;
3985
3986         err = qlcnic_check_npar_opertional(adapter);
3987         if (err)
3988                 return err;
3989
3990         err = qlcnic_initialize_nic(adapter);
3991         if (err)
3992                 return err;
3993
3994         qlcnic_check_options(adapter);
3995
3996         err = qlcnic_set_eswitch_port_config(adapter);
3997         if (err)
3998                 return err;
3999
4000         adapter->need_fw_reset = 0;
4001
4002         return err;
4003 }
4004
4005 int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt,
4006                           int queue_type)
4007 {
4008         struct net_device *netdev = adapter->netdev;
4009         char buf[8];
4010
4011         if (queue_type == QLCNIC_RX_QUEUE)
4012                 strcpy(buf, "SDS");
4013         else
4014                 strcpy(buf, "Tx");
4015
4016         if (!is_power_of_2(ring_cnt)) {
4017                 netdev_err(netdev, "%s rings value should be a power of 2\n",
4018                            buf);
4019                 return -EINVAL;
4020         }
4021
4022         if (qlcnic_82xx_check(adapter) && (queue_type == QLCNIC_TX_QUEUE) &&
4023             !qlcnic_check_multi_tx(adapter)) {
4024                         netdev_err(netdev, "No Multi Tx queue support\n");
4025                         return -EINVAL;
4026         }
4027
4028         if (ring_cnt > num_online_cpus()) {
4029                 netdev_err(netdev,
4030                            "%s value[%u] should not be higher than, number of online CPUs\n",
4031                            buf, num_online_cpus());
4032                 return -EINVAL;
4033         }
4034
4035         return 0;
4036 }
4037
4038 int qlcnic_setup_rings(struct qlcnic_adapter *adapter)
4039 {
4040         struct net_device *netdev = adapter->netdev;
4041         u8 tx_rings, rx_rings;
4042         int err;
4043
4044         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
4045                 return -EBUSY;
4046
4047         tx_rings = adapter->drv_tss_rings;
4048         rx_rings = adapter->drv_rss_rings;
4049
4050         netif_device_detach(netdev);
4051
4052         err = qlcnic_set_real_num_queues(adapter, tx_rings, rx_rings);
4053         if (err)
4054                 goto done;
4055
4056         if (netif_running(netdev))
4057                 __qlcnic_down(adapter, netdev);
4058
4059         qlcnic_detach(adapter);
4060
4061         if (qlcnic_83xx_check(adapter)) {
4062                 qlcnic_83xx_free_mbx_intr(adapter);
4063                 qlcnic_83xx_enable_mbx_poll(adapter);
4064         }
4065
4066         qlcnic_teardown_intr(adapter);
4067
4068         err = qlcnic_setup_intr(adapter);
4069         if (err) {
4070                 kfree(adapter->msix_entries);
4071                 netdev_err(netdev, "failed to setup interrupt\n");
4072                 return err;
4073         }
4074
4075         /* Check if we need to update real_num_{tx|rx}_queues because
4076          * qlcnic_setup_intr() may change Tx/Rx rings size
4077          */
4078         if ((tx_rings != adapter->drv_tx_rings) ||
4079             (rx_rings != adapter->drv_sds_rings)) {
4080                 err = qlcnic_set_real_num_queues(adapter,
4081                                                  adapter->drv_tx_rings,
4082                                                  adapter->drv_sds_rings);
4083                 if (err)
4084                         goto done;
4085         }
4086
4087         if (qlcnic_83xx_check(adapter)) {
4088                 qlcnic_83xx_initialize_nic(adapter, 1);
4089                 err = qlcnic_83xx_setup_mbx_intr(adapter);
4090                 qlcnic_83xx_disable_mbx_poll(adapter);
4091                 if (err) {
4092                         dev_err(&adapter->pdev->dev,
4093                                 "failed to setup mbx interrupt\n");
4094                         goto done;
4095                 }
4096         }
4097
4098         if (netif_running(netdev)) {
4099                 err = qlcnic_attach(adapter);
4100                 if (err)
4101                         goto done;
4102                 err = __qlcnic_up(adapter, netdev);
4103                 if (err)
4104                         goto done;
4105                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
4106         }
4107 done:
4108         netif_device_attach(netdev);
4109         clear_bit(__QLCNIC_RESETTING, &adapter->state);
4110         return err;
4111 }
4112
4113 #ifdef CONFIG_INET
4114
4115 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4116
4117 static void
4118 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4119                         struct net_device *dev, unsigned long event)
4120 {
4121         struct in_device *indev;
4122
4123         indev = in_dev_get(dev);
4124         if (!indev)
4125                 return;
4126
4127         for_ifa(indev) {
4128                 switch (event) {
4129                 case NETDEV_UP:
4130                         qlcnic_config_ipaddr(adapter,
4131                                         ifa->ifa_address, QLCNIC_IP_UP);
4132                         break;
4133                 case NETDEV_DOWN:
4134                         qlcnic_config_ipaddr(adapter,
4135                                         ifa->ifa_address, QLCNIC_IP_DOWN);
4136                         break;
4137                 default:
4138                         break;
4139                 }
4140         } endfor_ifa(indev);
4141
4142         in_dev_put(indev);
4143 }
4144
4145 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4146 {
4147         struct qlcnic_adapter *adapter = netdev_priv(netdev);
4148         struct net_device *dev;
4149         u16 vid;
4150
4151         qlcnic_config_indev_addr(adapter, netdev, event);
4152
4153         rcu_read_lock();
4154         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
4155                 dev = __vlan_find_dev_deep_rcu(netdev, htons(ETH_P_8021Q), vid);
4156                 if (!dev)
4157                         continue;
4158                 qlcnic_config_indev_addr(adapter, dev, event);
4159         }
4160         rcu_read_unlock();
4161 }
4162
4163 static int qlcnic_netdev_event(struct notifier_block *this,
4164                                  unsigned long event, void *ptr)
4165 {
4166         struct qlcnic_adapter *adapter;
4167         struct net_device *dev = netdev_notifier_info_to_dev(ptr);
4168
4169 recheck:
4170         if (dev == NULL)
4171                 goto done;
4172
4173         if (is_vlan_dev(dev)) {
4174                 dev = vlan_dev_real_dev(dev);
4175                 goto recheck;
4176         }
4177
4178         if (!is_qlcnic_netdev(dev))
4179                 goto done;
4180
4181         adapter = netdev_priv(dev);
4182
4183         if (!adapter)
4184                 goto done;
4185
4186         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4187                 goto done;
4188
4189         qlcnic_config_indev_addr(adapter, dev, event);
4190 done:
4191         return NOTIFY_DONE;
4192 }
4193
4194 static int
4195 qlcnic_inetaddr_event(struct notifier_block *this,
4196                 unsigned long event, void *ptr)
4197 {
4198         struct qlcnic_adapter *adapter;
4199         struct net_device *dev;
4200
4201         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4202
4203         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4204
4205 recheck:
4206         if (dev == NULL)
4207                 goto done;
4208
4209         if (is_vlan_dev(dev)) {
4210                 dev = vlan_dev_real_dev(dev);
4211                 goto recheck;
4212         }
4213
4214         if (!is_qlcnic_netdev(dev))
4215                 goto done;
4216
4217         adapter = netdev_priv(dev);
4218
4219         if (!adapter)
4220                 goto done;
4221
4222         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4223                 goto done;
4224
4225         switch (event) {
4226         case NETDEV_UP:
4227                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4228
4229                 break;
4230         case NETDEV_DOWN:
4231                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4232
4233                 break;
4234         default:
4235                 break;
4236         }
4237
4238 done:
4239         return NOTIFY_DONE;
4240 }
4241
4242 static struct notifier_block    qlcnic_netdev_cb = {
4243         .notifier_call = qlcnic_netdev_event,
4244 };
4245
4246 static struct notifier_block qlcnic_inetaddr_cb = {
4247         .notifier_call = qlcnic_inetaddr_event,
4248 };
4249 #else
4250 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4251 { }
4252 #endif
4253 static const struct pci_error_handlers qlcnic_err_handler = {
4254         .error_detected = qlcnic_io_error_detected,
4255         .slot_reset = qlcnic_io_slot_reset,
4256         .resume = qlcnic_io_resume,
4257 };
4258
4259 static struct pci_driver qlcnic_driver = {
4260         .name = qlcnic_driver_name,
4261         .id_table = qlcnic_pci_tbl,
4262         .probe = qlcnic_probe,
4263         .remove = qlcnic_remove,
4264 #ifdef CONFIG_PM
4265         .suspend = qlcnic_suspend,
4266         .resume = qlcnic_resume,
4267 #endif
4268         .shutdown = qlcnic_shutdown,
4269         .err_handler = &qlcnic_err_handler,
4270 #ifdef CONFIG_QLCNIC_SRIOV
4271         .sriov_configure = qlcnic_pci_sriov_configure,
4272 #endif
4273
4274 };
4275
4276 static int __init qlcnic_init_module(void)
4277 {
4278         int ret;
4279
4280         printk(KERN_INFO "%s\n", qlcnic_driver_string);
4281
4282 #ifdef CONFIG_INET
4283         register_netdevice_notifier(&qlcnic_netdev_cb);
4284         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4285 #endif
4286
4287         ret = pci_register_driver(&qlcnic_driver);
4288         if (ret) {
4289 #ifdef CONFIG_INET
4290                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4291                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4292 #endif
4293         }
4294
4295         return ret;
4296 }
4297
4298 module_init(qlcnic_init_module);
4299
4300 static void __exit qlcnic_exit_module(void)
4301 {
4302         pci_unregister_driver(&qlcnic_driver);
4303
4304 #ifdef CONFIG_INET
4305         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4306         unregister_netdevice_notifier(&qlcnic_netdev_cb);
4307 #endif
4308 }
4309
4310 module_exit(qlcnic_exit_module);