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

   1 /*
   2  * QLogic qlcnic NIC Driver
   3  * Copyright (c) 2009-2013 QLogic Corporation
   4  *
   5  * See LICENSE.qlcnic for copyright and licensing details.
   6  */
   7
   8 #include <linux/vmalloc.h>
   9 #include <linux/interrupt.h>
  10
  11 #include "qlcnic.h"
  12 #include "qlcnic_sriov.h"
  13 #include "qlcnic_hw.h"
  14
  15 #include <linux/swab.h>
  16 #include <linux/dma-mapping.h>
  17 #include <linux/if_vlan.h>
  18 #include <net/ip.h>
  19 #include <linux/ipv6.h>
  20 #include <linux/inetdevice.h>
  21 #include <linux/aer.h>
  22 #include <linux/log2.h>
  23 #include <linux/pci.h>
  24 #ifdef CONFIG_QLCNIC_VXLAN
  25 #include <net/vxlan.h>
  26 #endif
  27
  28 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
  29 MODULE_LICENSE("GPL");
  30 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
  31 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
  32
  33 char qlcnic_driver_name[] = "qlcnic";
  34 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
  35         "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
  36
  37 static int qlcnic_mac_learn;
  38 module_param(qlcnic_mac_learn, int, 0444);
  39 MODULE_PARM_DESC(qlcnic_mac_learn,
  40                  "Mac Filter (0=learning is disabled, 1=Driver learning is enabled, 2=FDB learning is enabled)");
  41
  42 int qlcnic_use_msi = 1;
  43 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled)");
  44 module_param_named(use_msi, qlcnic_use_msi, int, 0444);
  45
  46 int qlcnic_use_msi_x = 1;
  47 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled)");
  48 module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444);
  49
  50 int qlcnic_auto_fw_reset = 1;
  51 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled)");
  52 module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644);
  53
  54 int qlcnic_load_fw_file;
  55 MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file, 2=POST in fast mode, 3= POST in medium mode, 4=POST in slow mode)");
  56 module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);
  57
  58 static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
  59 static void qlcnic_remove(struct pci_dev *pdev);
  60 static int qlcnic_open(struct net_device *netdev);
  61 static int qlcnic_close(struct net_device *netdev);
  62 static void qlcnic_tx_timeout(struct net_device *netdev);
  63 static void qlcnic_attach_work(struct work_struct *work);
  64 static void qlcnic_fwinit_work(struct work_struct *work);
  65 #ifdef CONFIG_NET_POLL_CONTROLLER
  66 static void qlcnic_poll_controller(struct net_device *netdev);
  67 #endif
  68
  69 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
  70 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
  71
  72 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
  73 static irqreturn_t qlcnic_intr(int irq, void *data);
  74 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
  75 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
  76 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data);
  77
  78 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
  79 static int qlcnic_start_firmware(struct qlcnic_adapter *);
  80
  81 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
  82 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
  83 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
  84 static int qlcnic_vlan_rx_add(struct net_device *, __be16, u16);
  85 static int qlcnic_vlan_rx_del(struct net_device *, __be16, u16);
  86
  87 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *);
  88 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *, u32);
  89 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *);
  90 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *);
  91 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *);
  92 static void qlcnic_82xx_io_resume(struct pci_dev *);
  93 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *);
  94 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *,
  95                                                       pci_channel_state_t);
  96 static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
  97 {
  98         struct qlcnic_hardware_context *ahw = adapter->ahw;
  99
 100         if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
 101                 return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
 102         else
 103                 return 1;
 104 }
 105
 106 /*  PCI Device ID Table  */
 107 #define ENTRY(device) \
 108         {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
 109         .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
 110
 111 static const struct pci_device_id qlcnic_pci_tbl[] = {
 112         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
 113         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
 114         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE8830),
 115         ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE834X),
 116         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE844X),
 117         ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE844X),
 118         {0,}
 119 };
 120
 121 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
 122
 123
 124 inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
 125 {
 126         writel(tx_ring->producer, tx_ring->crb_cmd_producer);
 127 }
 128
 129 static const u32 msi_tgt_status[8] = {
 130         ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
 131         ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
 132         ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
 133         ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
 134 };
 135
 136 static const u32 qlcnic_reg_tbl[] = {
 137         0x1B20A8,       /* PEG_HALT_STAT1 */
 138         0x1B20AC,       /* PEG_HALT_STAT2 */
 139         0x1B20B0,       /* FW_HEARTBEAT */
 140         0x1B2100,       /* LOCK ID */
 141         0x1B2128,       /* FW_CAPABILITIES */
 142         0x1B2138,       /* drv active */
 143         0x1B2140,       /* dev state */
 144         0x1B2144,       /* drv state */
 145         0x1B2148,       /* drv scratch */
 146         0x1B214C,       /* dev partition info */
 147         0x1B2174,       /* drv idc ver */
 148         0x1B2150,       /* fw version major */
 149         0x1B2154,       /* fw version minor */
 150         0x1B2158,       /* fw version sub */
 151         0x1B219C,       /* npar state */
 152         0x1B21FC,       /* FW_IMG_VALID */
 153         0x1B2250,       /* CMD_PEG_STATE */
 154         0x1B233C,       /* RCV_PEG_STATE */
 155         0x1B23B4,       /* ASIC TEMP */
 156         0x1B216C,       /* FW api */
 157         0x1B2170,       /* drv op mode */
 158         0x13C010,       /* flash lock */
 159         0x13C014,       /* flash unlock */
 160 };
 161
 162 static const struct qlcnic_board_info qlcnic_boards[] = {
 163         { PCI_VENDOR_ID_QLOGIC,
 164           PCI_DEVICE_ID_QLOGIC_QLE844X,
 165           0x0,
 166           0x0,
 167           "8400 series 10GbE Converged Network Adapter (TCP/IP Networking)" },
 168         { PCI_VENDOR_ID_QLOGIC,
 169           PCI_DEVICE_ID_QLOGIC_QLE834X,
 170           PCI_VENDOR_ID_QLOGIC,
 171           0x24e,
 172           "8300 Series Dual Port 10GbE Converged Network Adapter "
 173           "(TCP/IP Networking)" },
 174         { PCI_VENDOR_ID_QLOGIC,
 175           PCI_DEVICE_ID_QLOGIC_QLE834X,
 176           PCI_VENDOR_ID_QLOGIC,
 177           0x243,
 178           "8300 Series Single Port 10GbE Converged Network Adapter "
 179           "(TCP/IP Networking)" },
 180         { PCI_VENDOR_ID_QLOGIC,
 181           PCI_DEVICE_ID_QLOGIC_QLE834X,
 182           PCI_VENDOR_ID_QLOGIC,
 183           0x24a,
 184           "8300 Series Dual Port 10GbE Converged Network Adapter "
 185           "(TCP/IP Networking)" },
 186         { PCI_VENDOR_ID_QLOGIC,
 187           PCI_DEVICE_ID_QLOGIC_QLE834X,
 188           PCI_VENDOR_ID_QLOGIC,
 189           0x246,
 190           "8300 Series Dual Port 10GbE Converged Network Adapter "
 191           "(TCP/IP Networking)" },
 192         { PCI_VENDOR_ID_QLOGIC,
 193           PCI_DEVICE_ID_QLOGIC_QLE834X,
 194           PCI_VENDOR_ID_QLOGIC,
 195           0x252,
 196           "8300 Series Dual Port 10GbE Converged Network Adapter "
 197           "(TCP/IP Networking)" },
 198         { PCI_VENDOR_ID_QLOGIC,
 199           PCI_DEVICE_ID_QLOGIC_QLE834X,
 200           PCI_VENDOR_ID_QLOGIC,
 201           0x26e,
 202           "8300 Series Dual Port 10GbE Converged Network Adapter "
 203           "(TCP/IP Networking)" },
 204         { PCI_VENDOR_ID_QLOGIC,
 205           PCI_DEVICE_ID_QLOGIC_QLE834X,
 206           PCI_VENDOR_ID_QLOGIC,
 207           0x260,
 208           "8300 Series Dual Port 10GbE Converged Network Adapter "
 209           "(TCP/IP Networking)" },
 210         { PCI_VENDOR_ID_QLOGIC,
 211           PCI_DEVICE_ID_QLOGIC_QLE834X,
 212           PCI_VENDOR_ID_QLOGIC,
 213           0x266,
 214           "8300 Series Single Port 10GbE Converged Network Adapter "
 215           "(TCP/IP Networking)" },
 216         { PCI_VENDOR_ID_QLOGIC,
 217           PCI_DEVICE_ID_QLOGIC_QLE834X,
 218           PCI_VENDOR_ID_QLOGIC,
 219           0x269,
 220           "8300 Series Dual Port 10GbE Converged Network Adapter "
 221           "(TCP/IP Networking)" },
 222         { PCI_VENDOR_ID_QLOGIC,
 223           PCI_DEVICE_ID_QLOGIC_QLE834X,
 224           PCI_VENDOR_ID_QLOGIC,
 225           0x271,
 226           "8300 Series Dual Port 10GbE Converged Network Adapter "
 227           "(TCP/IP Networking)" },
 228         { PCI_VENDOR_ID_QLOGIC,
 229           PCI_DEVICE_ID_QLOGIC_QLE834X,
 230           0x0, 0x0, "8300 Series 1/10GbE Controller" },
 231         { PCI_VENDOR_ID_QLOGIC,
 232           PCI_DEVICE_ID_QLOGIC_QLE8830,
 233           0x0,
 234           0x0,
 235           "8830 Series 1/10GbE Controller" },
 236         { PCI_VENDOR_ID_QLOGIC,
 237           PCI_DEVICE_ID_QLOGIC_QLE824X,
 238           PCI_VENDOR_ID_QLOGIC,
 239           0x203,
 240           "8200 Series Single Port 10GbE Converged Network Adapter"
 241           "(TCP/IP Networking)" },
 242         { PCI_VENDOR_ID_QLOGIC,
 243           PCI_DEVICE_ID_QLOGIC_QLE824X,
 244           PCI_VENDOR_ID_QLOGIC,
 245           0x207,
 246           "8200 Series Dual Port 10GbE Converged Network Adapter"
 247           "(TCP/IP Networking)" },
 248         { PCI_VENDOR_ID_QLOGIC,
 249           PCI_DEVICE_ID_QLOGIC_QLE824X,
 250           PCI_VENDOR_ID_QLOGIC,
 251           0x20b,
 252           "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter" },
 253         { PCI_VENDOR_ID_QLOGIC,
 254           PCI_DEVICE_ID_QLOGIC_QLE824X,
 255           PCI_VENDOR_ID_QLOGIC,
 256           0x20c,
 257           "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter" },
 258         { PCI_VENDOR_ID_QLOGIC,
 259           PCI_DEVICE_ID_QLOGIC_QLE824X,
 260           PCI_VENDOR_ID_QLOGIC,
 261           0x20f,
 262           "3200 Series Single Port 10Gb Intelligent Ethernet Adapter" },
 263         { PCI_VENDOR_ID_QLOGIC,
 264           PCI_DEVICE_ID_QLOGIC_QLE824X,
 265           0x103c, 0x3733,
 266           "NC523SFP 10Gb 2-port Server Adapter" },
 267         { PCI_VENDOR_ID_QLOGIC,
 268           PCI_DEVICE_ID_QLOGIC_QLE824X,
 269           0x103c, 0x3346,
 270           "CN1000Q Dual Port Converged Network Adapter" },
 271         { PCI_VENDOR_ID_QLOGIC,
 272           PCI_DEVICE_ID_QLOGIC_QLE824X,
 273           PCI_VENDOR_ID_QLOGIC,
 274           0x210,
 275           "QME8242-k 10GbE Dual Port Mezzanine Card" },
 276         { PCI_VENDOR_ID_QLOGIC,
 277           PCI_DEVICE_ID_QLOGIC_QLE824X,
 278           0x0, 0x0, "cLOM8214 1/10GbE Controller" },
 279 };
 280
 281 #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)
 282
 283 static const
 284 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
 285
 286 int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
 287 {
 288         int size = sizeof(struct qlcnic_host_sds_ring) * count;
 289
 290         recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
 291
 292         return recv_ctx->sds_rings == NULL;
 293 }
 294
 295 void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
 296 {
 297         if (recv_ctx->sds_rings != NULL)
 298                 kfree(recv_ctx->sds_rings);
 299
 300         recv_ctx->sds_rings = NULL;
 301 }
 302
 303 int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
 304 {
 305         struct net_device *netdev = adapter->netdev;
 306         struct pci_dev *pdev = adapter->pdev;
 307         u8 mac_addr[ETH_ALEN];
 308         int ret;
 309
 310         ret = qlcnic_get_mac_address(adapter, mac_addr,
 311                                      adapter->ahw->pci_func);
 312         if (ret)
 313                 return ret;
 314
 315         memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
 316         memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
 317
 318         /* set station address */
 319
 320         if (!is_valid_ether_addr(netdev->dev_addr))
 321                 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
 322                                         netdev->dev_addr);
 323
 324         return 0;
 325 }
 326
 327 static void qlcnic_delete_adapter_mac(struct qlcnic_adapter *adapter)
 328 {
 329         struct qlcnic_mac_vlan_list *cur;
 330         struct list_head *head;
 331
 332         list_for_each(head, &adapter->mac_list) {
 333                 cur = list_entry(head, struct qlcnic_mac_vlan_list, list);
 334                 if (ether_addr_equal_unaligned(adapter->mac_addr, cur->mac_addr)) {
 335                         qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
 336                                                   0, QLCNIC_MAC_DEL);
 337                         list_del(&cur->list);
 338                         kfree(cur);
 339                         return;
 340                 }
 341         }
 342 }
 343
 344 static int qlcnic_set_mac(struct net_device *netdev, void *p)
 345 {
 346         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 347         struct sockaddr *addr = p;
 348
 349         if (qlcnic_sriov_vf_check(adapter))
 350                 return -EINVAL;
 351
 352         if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
 353                 return -EOPNOTSUPP;
 354
 355         if (!is_valid_ether_addr(addr->sa_data))
 356                 return -EINVAL;
 357
 358         if (ether_addr_equal_unaligned(adapter->mac_addr, addr->sa_data))
 359                 return 0;
 360
 361         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 362                 netif_device_detach(netdev);
 363                 qlcnic_napi_disable(adapter);
 364         }
 365
 366         qlcnic_delete_adapter_mac(adapter);
 367         memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
 368         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 369         qlcnic_set_multi(adapter->netdev);
 370
 371         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 372                 netif_device_attach(netdev);
 373                 qlcnic_napi_enable(adapter);
 374         }
 375         return 0;
 376 }
 377
 378 static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
 379                         struct net_device *netdev, const unsigned char *addr)
 380 {
 381         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 382         int err = -EOPNOTSUPP;
 383
 384         if (!adapter->fdb_mac_learn)
 385                 return ndo_dflt_fdb_del(ndm, tb, netdev, addr);
 386
 387         if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
 388             qlcnic_sriov_check(adapter)) {
 389                 if (is_unicast_ether_addr(addr)) {
 390                         err = dev_uc_del(netdev, addr);
 391                         if (!err)
 392                                 err = qlcnic_nic_del_mac(adapter, addr);
 393                 } else if (is_multicast_ether_addr(addr)) {
 394                         err = dev_mc_del(netdev, addr);
 395                 } else {
 396                         err =  -EINVAL;
 397                 }
 398         }
 399         return err;
 400 }
 401
 402 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 403                         struct net_device *netdev,
 404                         const unsigned char *addr, u16 flags)
 405 {
 406         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 407         int err = 0;
 408
 409         if (!adapter->fdb_mac_learn)
 410                 return ndo_dflt_fdb_add(ndm, tb, netdev, addr, flags);
 411
 412         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) &&
 413             !qlcnic_sriov_check(adapter)) {
 414                 pr_info("%s: FDB e-switch is not enabled\n", __func__);
 415                 return -EOPNOTSUPP;
 416         }
 417
 418         if (ether_addr_equal(addr, adapter->mac_addr))
 419                 return err;
 420
 421         if (is_unicast_ether_addr(addr)) {
 422                 if (netdev_uc_count(netdev) < adapter->ahw->max_uc_count)
 423                         err = dev_uc_add_excl(netdev, addr);
 424                 else
 425                         err = -ENOMEM;
 426         } else if (is_multicast_ether_addr(addr)) {
 427                 err = dev_mc_add_excl(netdev, addr);
 428         } else {
 429                 err = -EINVAL;
 430         }
 431
 432         return err;
 433 }
 434
 435 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
 436                         struct net_device *netdev,
 437                         struct net_device *filter_dev, int idx)
 438 {
 439         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 440
 441         if (!adapter->fdb_mac_learn)
 442                 return ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
 443
 444         if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
 445             qlcnic_sriov_check(adapter))
 446                 idx = ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
 447
 448         return idx;
 449 }
 450
 451 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
 452 {
 453         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
 454                 usleep_range(10000, 11000);
 455
 456         if (!adapter->fw_work.work.func)
 457                 return;
 458
 459         cancel_delayed_work_sync(&adapter->fw_work);
 460 }
 461
 462 static int qlcnic_get_phys_port_id(struct net_device *netdev,
 463                                    struct netdev_phys_port_id *ppid)
 464 {
 465         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 466         struct qlcnic_hardware_context *ahw = adapter->ahw;
 467
 468         if (!(adapter->flags & QLCNIC_HAS_PHYS_PORT_ID))
 469                 return -EOPNOTSUPP;
 470
 471         ppid->id_len = sizeof(ahw->phys_port_id);
 472         memcpy(ppid->id, ahw->phys_port_id, ppid->id_len);
 473
 474         return 0;
 475 }
 476
 477 #ifdef CONFIG_QLCNIC_VXLAN
 478 static void qlcnic_add_vxlan_port(struct net_device *netdev,
 479                                   sa_family_t sa_family, __be16 port)
 480 {
 481         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 482         struct qlcnic_hardware_context *ahw = adapter->ahw;
 483
 484         /* Adapter supports only one VXLAN port. Use very first port
 485          * for enabling offload
 486          */
 487         if (!qlcnic_encap_rx_offload(adapter) || ahw->vxlan_port)
 488                 return;
 489
 490         ahw->vxlan_port = ntohs(port);
 491         adapter->flags |= QLCNIC_ADD_VXLAN_PORT;
 492 }
 493
 494 static void qlcnic_del_vxlan_port(struct net_device *netdev,
 495                                   sa_family_t sa_family, __be16 port)
 496 {
 497         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 498         struct qlcnic_hardware_context *ahw = adapter->ahw;
 499
 500         if (!qlcnic_encap_rx_offload(adapter) || !ahw->vxlan_port ||
 501             (ahw->vxlan_port != ntohs(port)))
 502                 return;
 503
 504         adapter->flags |= QLCNIC_DEL_VXLAN_PORT;
 505 }
 506
 507 static bool qlcnic_gso_check(struct sk_buff *skb, struct net_device *dev)
 508 {
 509         return vxlan_gso_check(skb);
 510 }
 511 #endif
 512
 513 static const struct net_device_ops qlcnic_netdev_ops = {
 514         .ndo_open          = qlcnic_open,
 515         .ndo_stop          = qlcnic_close,
 516         .ndo_start_xmit    = qlcnic_xmit_frame,
 517         .ndo_get_stats     = qlcnic_get_stats,
 518         .ndo_validate_addr = eth_validate_addr,
 519         .ndo_set_rx_mode   = qlcnic_set_multi,
 520         .ndo_set_mac_address    = qlcnic_set_mac,
 521         .ndo_change_mtu    = qlcnic_change_mtu,
 522         .ndo_fix_features  = qlcnic_fix_features,
 523         .ndo_set_features  = qlcnic_set_features,
 524         .ndo_tx_timeout    = qlcnic_tx_timeout,
 525         .ndo_vlan_rx_add_vid    = qlcnic_vlan_rx_add,
 526         .ndo_vlan_rx_kill_vid   = qlcnic_vlan_rx_del,
 527         .ndo_fdb_add            = qlcnic_fdb_add,
 528         .ndo_fdb_del            = qlcnic_fdb_del,
 529         .ndo_fdb_dump           = qlcnic_fdb_dump,
 530         .ndo_get_phys_port_id   = qlcnic_get_phys_port_id,
 531 #ifdef CONFIG_QLCNIC_VXLAN
 532         .ndo_add_vxlan_port     = qlcnic_add_vxlan_port,
 533         .ndo_del_vxlan_port     = qlcnic_del_vxlan_port,
 534         .ndo_gso_check          = qlcnic_gso_check,
 535 #endif
 536 #ifdef CONFIG_NET_POLL_CONTROLLER
 537         .ndo_poll_controller = qlcnic_poll_controller,
 538 #endif
 539 #ifdef CONFIG_QLCNIC_SRIOV
 540         .ndo_set_vf_mac         = qlcnic_sriov_set_vf_mac,
 541         .ndo_set_vf_rate        = qlcnic_sriov_set_vf_tx_rate,
 542         .ndo_get_vf_config      = qlcnic_sriov_get_vf_config,
 543         .ndo_set_vf_vlan        = qlcnic_sriov_set_vf_vlan,
 544         .ndo_set_vf_spoofchk    = qlcnic_sriov_set_vf_spoofchk,
 545 #endif
 546 };
 547
 548 static const struct net_device_ops qlcnic_netdev_failed_ops = {
 549         .ndo_open          = qlcnic_open,
 550 };
 551
 552 static struct qlcnic_nic_template qlcnic_ops = {
 553         .config_bridged_mode    = qlcnic_config_bridged_mode,
 554         .config_led             = qlcnic_82xx_config_led,
 555         .start_firmware         = qlcnic_82xx_start_firmware,
 556         .request_reset          = qlcnic_82xx_dev_request_reset,
 557         .cancel_idc_work        = qlcnic_82xx_cancel_idc_work,
 558         .napi_add               = qlcnic_82xx_napi_add,
 559         .napi_del               = qlcnic_82xx_napi_del,
 560         .config_ipaddr          = qlcnic_82xx_config_ipaddr,
 561         .shutdown               = qlcnic_82xx_shutdown,
 562         .resume                 = qlcnic_82xx_resume,
 563         .clear_legacy_intr      = qlcnic_82xx_clear_legacy_intr,
 564 };
 565
 566 struct qlcnic_nic_template qlcnic_vf_ops = {
 567         .config_bridged_mode    = qlcnicvf_config_bridged_mode,
 568         .config_led             = qlcnicvf_config_led,
 569         .start_firmware         = qlcnicvf_start_firmware
 570 };
 571
 572 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
 573         .read_crb                       = qlcnic_82xx_read_crb,
 574         .write_crb                      = qlcnic_82xx_write_crb,
 575         .read_reg                       = qlcnic_82xx_hw_read_wx_2M,
 576         .write_reg                      = qlcnic_82xx_hw_write_wx_2M,
 577         .get_mac_address                = qlcnic_82xx_get_mac_address,
 578         .setup_intr                     = qlcnic_82xx_setup_intr,
 579         .alloc_mbx_args                 = qlcnic_82xx_alloc_mbx_args,
 580         .mbx_cmd                        = qlcnic_82xx_issue_cmd,
 581         .get_func_no                    = qlcnic_82xx_get_func_no,
 582         .api_lock                       = qlcnic_82xx_api_lock,
 583         .api_unlock                     = qlcnic_82xx_api_unlock,
 584         .add_sysfs                      = qlcnic_82xx_add_sysfs,
 585         .remove_sysfs                   = qlcnic_82xx_remove_sysfs,
 586         .process_lb_rcv_ring_diag       = qlcnic_82xx_process_rcv_ring_diag,
 587         .create_rx_ctx                  = qlcnic_82xx_fw_cmd_create_rx_ctx,
 588         .create_tx_ctx                  = qlcnic_82xx_fw_cmd_create_tx_ctx,
 589         .del_rx_ctx                     = qlcnic_82xx_fw_cmd_del_rx_ctx,
 590         .del_tx_ctx                     = qlcnic_82xx_fw_cmd_del_tx_ctx,
 591         .setup_link_event               = qlcnic_82xx_linkevent_request,
 592         .get_nic_info                   = qlcnic_82xx_get_nic_info,
 593         .get_pci_info                   = qlcnic_82xx_get_pci_info,
 594         .set_nic_info                   = qlcnic_82xx_set_nic_info,
 595         .change_macvlan                 = qlcnic_82xx_sre_macaddr_change,
 596         .napi_enable                    = qlcnic_82xx_napi_enable,
 597         .napi_disable                   = qlcnic_82xx_napi_disable,
 598         .config_intr_coal               = qlcnic_82xx_config_intr_coalesce,
 599         .config_rss                     = qlcnic_82xx_config_rss,
 600         .config_hw_lro                  = qlcnic_82xx_config_hw_lro,
 601         .config_loopback                = qlcnic_82xx_set_lb_mode,
 602         .clear_loopback                 = qlcnic_82xx_clear_lb_mode,
 603         .config_promisc_mode            = qlcnic_82xx_nic_set_promisc,
 604         .change_l2_filter               = qlcnic_82xx_change_filter,
 605         .get_board_info                 = qlcnic_82xx_get_board_info,
 606         .set_mac_filter_count           = qlcnic_82xx_set_mac_filter_count,
 607         .free_mac_list                  = qlcnic_82xx_free_mac_list,
 608         .read_phys_port_id              = qlcnic_82xx_read_phys_port_id,
 609         .io_error_detected              = qlcnic_82xx_io_error_detected,
 610         .io_slot_reset                  = qlcnic_82xx_io_slot_reset,
 611         .io_resume                      = qlcnic_82xx_io_resume,
 612         .get_beacon_state               = qlcnic_82xx_get_beacon_state,
 613         .enable_sds_intr                = qlcnic_82xx_enable_sds_intr,
 614         .disable_sds_intr               = qlcnic_82xx_disable_sds_intr,
 615         .enable_tx_intr                 = qlcnic_82xx_enable_tx_intr,
 616         .disable_tx_intr                = qlcnic_82xx_disable_tx_intr,
 617         .get_saved_state                = qlcnic_82xx_get_saved_state,
 618         .set_saved_state                = qlcnic_82xx_set_saved_state,
 619         .cache_tmpl_hdr_values          = qlcnic_82xx_cache_tmpl_hdr_values,
 620         .get_cap_size                   = qlcnic_82xx_get_cap_size,
 621         .set_sys_info                   = qlcnic_82xx_set_sys_info,
 622         .store_cap_mask                 = qlcnic_82xx_store_cap_mask,
 623 };
 624
 625 static int qlcnic_check_multi_tx_capability(struct qlcnic_adapter *adapter)
 626 {
 627         struct qlcnic_hardware_context *ahw = adapter->ahw;
 628
 629         if (qlcnic_82xx_check(adapter) &&
 630             (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_MULTI_TX)) {
 631                 test_and_set_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
 632                 return 0;
 633         } else {
 634                 return 1;
 635         }
 636 }
 637
 638 static int qlcnic_max_rings(struct qlcnic_adapter *adapter, u8 ring_cnt,
 639                             int queue_type)
 640 {
 641         int num_rings, max_rings = QLCNIC_MAX_SDS_RINGS;
 642
 643         if (queue_type == QLCNIC_RX_QUEUE)
 644                 max_rings = adapter->max_sds_rings;
 645         else if (queue_type == QLCNIC_TX_QUEUE)
 646                 max_rings = adapter->max_tx_rings;
 647
 648         num_rings = rounddown_pow_of_two(min_t(int, num_online_cpus(),
 649                                               max_rings));
 650
 651         if (ring_cnt > num_rings)
 652                 return num_rings;
 653         else
 654                 return ring_cnt;
 655 }
 656
 657 void qlcnic_set_tx_ring_count(struct qlcnic_adapter *adapter, u8 tx_cnt)
 658 {
 659         /* 83xx adapter does not have max_tx_rings intialized in probe */
 660         if (adapter->max_tx_rings)
 661                 adapter->drv_tx_rings = qlcnic_max_rings(adapter, tx_cnt,
 662                                                          QLCNIC_TX_QUEUE);
 663         else
 664                 adapter->drv_tx_rings = tx_cnt;
 665 }
 666
 667 void qlcnic_set_sds_ring_count(struct qlcnic_adapter *adapter, u8 rx_cnt)
 668 {
 669         /* 83xx adapter does not have max_sds_rings intialized in probe */
 670         if (adapter->max_sds_rings)
 671                 adapter->drv_sds_rings = qlcnic_max_rings(adapter, rx_cnt,
 672                                                           QLCNIC_RX_QUEUE);
 673         else
 674                 adapter->drv_sds_rings = rx_cnt;
 675 }
 676
 677 int qlcnic_setup_tss_rss_intr(struct qlcnic_adapter *adapter)
 678 {
 679         struct pci_dev *pdev = adapter->pdev;
 680         int num_msix = 0, err = 0, vector;
 681
 682         adapter->flags &= ~QLCNIC_TSS_RSS;
 683
 684         if (adapter->drv_tss_rings > 0)
 685                 num_msix += adapter->drv_tss_rings;
 686         else
 687                 num_msix += adapter->drv_tx_rings;
 688
 689         if (adapter->drv_rss_rings > 0)
 690                 num_msix += adapter->drv_rss_rings;
 691         else
 692                 num_msix += adapter->drv_sds_rings;
 693
 694         if (qlcnic_83xx_check(adapter))
 695                 num_msix += 1;
 696
 697         if (!adapter->msix_entries) {
 698                 adapter->msix_entries = kcalloc(num_msix,
 699                                                 sizeof(struct msix_entry),
 700                                                 GFP_KERNEL);
 701                 if (!adapter->msix_entries)
 702                         return -ENOMEM;
 703         }
 704
 705         for (vector = 0; vector < num_msix; vector++)
 706                 adapter->msix_entries[vector].entry = vector;
 707
 708 restore:
 709         err = pci_enable_msix_exact(pdev, adapter->msix_entries, num_msix);
 710         if (err == -ENOSPC) {
 711                 if (!adapter->drv_tss_rings && !adapter->drv_rss_rings)
 712                         return err;
 713
 714                 netdev_info(adapter->netdev,
 715                             "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
 716                             num_msix, err);
 717
 718                 num_msix = adapter->drv_tx_rings + adapter->drv_sds_rings;
 719
 720                 /* Set rings to 0 so we can restore original TSS/RSS count */
 721                 adapter->drv_tss_rings = 0;
 722                 adapter->drv_rss_rings = 0;
 723
 724                 if (qlcnic_83xx_check(adapter))
 725                         num_msix += 1;
 726
 727                 netdev_info(adapter->netdev,
 728                             "Restoring %d Tx, %d SDS rings for total %d vectors.\n",
 729                             adapter->drv_tx_rings, adapter->drv_sds_rings,
 730                             num_msix);
 731
 732                 goto restore;
 733         } else if (err < 0) {
 734                 return err;
 735         }
 736
 737         adapter->ahw->num_msix = num_msix;
 738         if (adapter->drv_tss_rings > 0)
 739                 adapter->drv_tx_rings = adapter->drv_tss_rings;
 740
 741         if (adapter->drv_rss_rings > 0)
 742                 adapter->drv_sds_rings = adapter->drv_rss_rings;
 743
 744         return 0;
 745 }
 746
 747 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 748 {
 749         struct pci_dev *pdev = adapter->pdev;
 750         int err, vector;
 751
 752         if (!adapter->msix_entries) {
 753                 adapter->msix_entries = kcalloc(num_msix,
 754                                                 sizeof(struct msix_entry),
 755                                                 GFP_KERNEL);
 756                 if (!adapter->msix_entries)
 757                         return -ENOMEM;
 758         }
 759
 760         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 761
 762         if (adapter->ahw->msix_supported) {
 763 enable_msix:
 764                 for (vector = 0; vector < num_msix; vector++)
 765                         adapter->msix_entries[vector].entry = vector;
 766
 767                 err = pci_enable_msix_range(pdev,
 768                                             adapter->msix_entries, 1, num_msix);
 769
 770                 if (err == num_msix) {
 771                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 772                         adapter->ahw->num_msix = num_msix;
 773                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 774                         return 0;
 775                 } else if (err > 0) {
 776                         pci_disable_msix(pdev);
 777
 778                         dev_info(&pdev->dev,
 779                                  "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
 780                                  num_msix, err);
 781
 782                         if (qlcnic_82xx_check(adapter)) {
 783                                 num_msix = rounddown_pow_of_two(err);
 784                                 if (err < QLCNIC_82XX_MINIMUM_VECTOR)
 785                                         return -ENOSPC;
 786                         } else {
 787                                 num_msix = rounddown_pow_of_two(err - 1);
 788                                 num_msix += 1;
 789                                 if (err < QLCNIC_83XX_MINIMUM_VECTOR)
 790                                         return -ENOSPC;
 791                         }
 792
 793                         if (qlcnic_82xx_check(adapter) &&
 794                             !qlcnic_check_multi_tx(adapter)) {
 795                                 adapter->drv_sds_rings = num_msix;
 796                                 adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
 797                         } else {
 798                                 /* Distribute vectors equally */
 799                                 adapter->drv_tx_rings = num_msix / 2;
 800                                 adapter->drv_sds_rings = adapter->drv_tx_rings;
 801                         }
 802
 803                         if (num_msix) {
 804                                 dev_info(&pdev->dev,
 805                                          "Trying to allocate %d MSI-X interrupt vectors\n",
 806                                          num_msix);
 807                                 goto enable_msix;
 808                         }
 809                 } else {
 810                         dev_info(&pdev->dev,
 811                                  "Unable to allocate %d MSI-X vectors, err=%d\n",
 812                                  num_msix, err);
 813                         return err;
 814                 }
 815         }
 816
 817         return -EIO;
 818 }
 819
 820 static int qlcnic_82xx_calculate_msix_vector(struct qlcnic_adapter *adapter)
 821 {
 822         int num_msix;
 823
 824         num_msix = adapter->drv_sds_rings;
 825
 826         if (qlcnic_check_multi_tx(adapter))
 827                 num_msix += adapter->drv_tx_rings;
 828         else
 829                 num_msix += QLCNIC_SINGLE_RING;
 830
 831         return num_msix;
 832 }
 833
 834 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
 835 {
 836         int err = 0;
 837         u32 offset, mask_reg;
 838         const struct qlcnic_legacy_intr_set *legacy_intrp;
 839         struct qlcnic_hardware_context *ahw = adapter->ahw;
 840         struct pci_dev *pdev = adapter->pdev;
 841
 842         if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
 843                 adapter->flags |= QLCNIC_MSI_ENABLED;
 844                 offset = msi_tgt_status[adapter->ahw->pci_func];
 845                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
 846                                                             offset);
 847                 dev_info(&pdev->dev, "using msi interrupts\n");
 848                 adapter->msix_entries[0].vector = pdev->irq;
 849                 return err;
 850         }
 851
 852         if (qlcnic_use_msi || qlcnic_use_msi_x)
 853                 return -EOPNOTSUPP;
 854
 855         legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
 856         adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
 857         offset = legacy_intrp->tgt_status_reg;
 858         adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
 859         mask_reg = legacy_intrp->tgt_mask_reg;
 860         adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
 861         adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
 862         adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
 863         dev_info(&pdev->dev, "using legacy interrupts\n");
 864         adapter->msix_entries[0].vector = pdev->irq;
 865         return err;
 866 }
 867
 868 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter)
 869 {
 870         int num_msix, err = 0;
 871
 872         if (adapter->flags & QLCNIC_TSS_RSS) {
 873                 err = qlcnic_setup_tss_rss_intr(adapter);
 874                 if (err < 0)
 875                         return err;
 876                 num_msix = adapter->ahw->num_msix;
 877         } else {
 878                 num_msix = qlcnic_82xx_calculate_msix_vector(adapter);
 879
 880                 err = qlcnic_enable_msix(adapter, num_msix);
 881                 if (err == -ENOMEM)
 882                         return err;
 883
 884                 if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
 885                         qlcnic_disable_multi_tx(adapter);
 886                         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
 887
 888                         err = qlcnic_enable_msi_legacy(adapter);
 889                         if (err)
 890                                 return err;
 891                 }
 892         }
 893
 894         return 0;
 895 }
 896
 897 int qlcnic_82xx_mq_intrpt(struct qlcnic_adapter *adapter, int op_type)
 898 {
 899         struct qlcnic_hardware_context *ahw = adapter->ahw;
 900         int err, i;
 901
 902         if (qlcnic_check_multi_tx(adapter) &&
 903             !ahw->diag_test &&
 904             (adapter->flags & QLCNIC_MSIX_ENABLED)) {
 905                 ahw->intr_tbl = vzalloc(ahw->num_msix *
 906                                         sizeof(struct qlcnic_intrpt_config));
 907                 if (!ahw->intr_tbl)
 908                         return -ENOMEM;
 909
 910                 for (i = 0; i < ahw->num_msix; i++) {
 911                         ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
 912                         ahw->intr_tbl[i].id = i;
 913                         ahw->intr_tbl[i].src = 0;
 914                 }
 915
 916                 err = qlcnic_82xx_config_intrpt(adapter, 1);
 917                 if (err)
 918                         dev_err(&adapter->pdev->dev,
 919                                 "Failed to configure Interrupt for %d vector\n",
 920                                 ahw->num_msix);
 921                 return err;
 922         }
 923
 924         return 0;
 925 }
 926
 927 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 928 {
 929         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 930                 pci_disable_msix(adapter->pdev);
 931         if (adapter->flags & QLCNIC_MSI_ENABLED)
 932                 pci_disable_msi(adapter->pdev);
 933
 934         kfree(adapter->msix_entries);
 935         adapter->msix_entries = NULL;
 936
 937         if (adapter->ahw->intr_tbl) {
 938                 vfree(adapter->ahw->intr_tbl);
 939                 adapter->ahw->intr_tbl = NULL;
 940         }
 941 }
 942
 943 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
 944 {
 945         if (ahw->pci_base0 != NULL)
 946                 iounmap(ahw->pci_base0);
 947 }
 948
 949 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
 950 {
 951         struct qlcnic_hardware_context *ahw = adapter->ahw;
 952         struct qlcnic_pci_info *pci_info;
 953         int ret;
 954
 955         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 956                 switch (ahw->port_type) {
 957                 case QLCNIC_GBE:
 958                         ahw->total_nic_func = QLCNIC_NIU_MAX_GBE_PORTS;
 959                         break;
 960                 case QLCNIC_XGBE:
 961                         ahw->total_nic_func = QLCNIC_NIU_MAX_XG_PORTS;
 962                         break;
 963                 }
 964                 return 0;
 965         }
 966
 967         if (ahw->op_mode == QLCNIC_MGMT_FUNC)
 968                 return 0;
 969
 970         pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
 971         if (!pci_info)
 972                 return -ENOMEM;
 973
 974         ret = qlcnic_get_pci_info(adapter, pci_info);
 975         kfree(pci_info);
 976         return ret;
 977 }
 978
 979 static bool qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter *adapter)
 980 {
 981         bool ret = false;
 982
 983         if (qlcnic_84xx_check(adapter)) {
 984                 ret = true;
 985         } else if (qlcnic_83xx_check(adapter)) {
 986                 if (adapter->ahw->extra_capability[0] &
 987                     QLCNIC_FW_CAPABILITY_2_PER_PORT_ESWITCH_CFG)
 988                         ret = true;
 989                 else
 990                         ret = false;
 991         }
 992
 993         return ret;
 994 }
 995
 996 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 997 {
 998         struct qlcnic_hardware_context *ahw = adapter->ahw;
 999         struct qlcnic_pci_info *pci_info;
1000         int i, id = 0, ret = 0, j = 0;
1001         u16 act_pci_func;
1002         u8 pfn;
1003
1004         pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
1005         if (!pci_info)
1006                 return -ENOMEM;
1007
1008         ret = qlcnic_get_pci_info(adapter, pci_info);
1009         if (ret)
1010                 goto err_pci_info;
1011
1012         act_pci_func = ahw->total_nic_func;
1013
1014         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
1015                                  act_pci_func, GFP_KERNEL);
1016         if (!adapter->npars) {
1017                 ret = -ENOMEM;
1018                 goto err_pci_info;
1019         }
1020
1021         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
1022                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
1023         if (!adapter->eswitch) {
1024                 ret = -ENOMEM;
1025                 goto err_npars;
1026         }
1027
1028         for (i = 0; i < ahw->max_vnic_func; i++) {
1029                 pfn = pci_info[i].id;
1030
1031                 if (pfn >= ahw->max_vnic_func) {
1032                         ret = QL_STATUS_INVALID_PARAM;
1033                         dev_err(&adapter->pdev->dev, "%s: Invalid function 0x%x, max 0x%x\n",
1034                                 __func__, pfn, ahw->max_vnic_func);
1035                         goto err_eswitch;
1036                 }
1037
1038                 if (!pci_info[i].active ||
1039                     (pci_info[i].type != QLCNIC_TYPE_NIC))
1040                         continue;
1041
1042                 if (qlcnic_port_eswitch_cfg_capability(adapter)) {
1043                         if (!qlcnic_83xx_set_port_eswitch_status(adapter, pfn,
1044                                                                  &id))
1045                                 adapter->npars[j].eswitch_status = true;
1046                         else
1047                                 continue;
1048                 } else {
1049                         adapter->npars[j].eswitch_status = true;
1050                 }
1051
1052                 adapter->npars[j].pci_func = pfn;
1053                 adapter->npars[j].active = (u8)pci_info[i].active;
1054                 adapter->npars[j].type = (u8)pci_info[i].type;
1055                 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
1056                 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
1057                 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
1058
1059                 memcpy(&adapter->npars[j].mac, &pci_info[i].mac, ETH_ALEN);
1060                 j++;
1061         }
1062
1063         /* Update eSwitch status for adapters without per port eSwitch
1064          * configuration capability
1065          */
1066         if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
1067                 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
1068                         adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
1069         }
1070
1071         kfree(pci_info);
1072         return 0;
1073
1074 err_eswitch:
1075         kfree(adapter->eswitch);
1076         adapter->eswitch = NULL;
1077 err_npars:
1078         kfree(adapter->npars);
1079         adapter->npars = NULL;
1080 err_pci_info:
1081         kfree(pci_info);
1082
1083         return ret;
1084 }
1085
1086 static int
1087 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
1088 {
1089         u8 id;
1090         int ret;
1091         u32 data = QLCNIC_MGMT_FUNC;
1092         struct qlcnic_hardware_context *ahw = adapter->ahw;
1093
1094         ret = qlcnic_api_lock(adapter);
1095         if (ret)
1096                 goto err_lock;
1097
1098         id = ahw->pci_func;
1099         data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1100         data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
1101                QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
1102         QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
1103         qlcnic_api_unlock(adapter);
1104 err_lock:
1105         return ret;
1106 }
1107
1108 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
1109                             const struct pci_device_id *ent)
1110 {
1111         u32 op_mode, priv_level;
1112
1113         /* Determine FW API version */
1114         adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
1115                                                            QLCNIC_FW_API);
1116
1117         /* Find PCI function number */
1118         qlcnic_get_func_no(adapter);
1119
1120         /* Determine function privilege level */
1121         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1122         if (op_mode == QLC_DEV_DRV_DEFAULT)
1123                 priv_level = QLCNIC_MGMT_FUNC;
1124         else
1125                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1126
1127         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
1128                 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
1129                 dev_info(&adapter->pdev->dev,
1130                         "HAL Version: %d Non Privileged function\n",
1131                          adapter->ahw->fw_hal_version);
1132                 adapter->nic_ops = &qlcnic_vf_ops;
1133         } else
1134                 adapter->nic_ops = &qlcnic_ops;
1135 }
1136
1137 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
1138 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
1139 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
1140 {
1141         switch (dev_id) {
1142         case PCI_DEVICE_ID_QLOGIC_QLE824X:
1143                 *bar = QLCNIC_82XX_BAR0_LENGTH;
1144                 break;
1145         case PCI_DEVICE_ID_QLOGIC_QLE834X:
1146         case PCI_DEVICE_ID_QLOGIC_QLE8830:
1147         case PCI_DEVICE_ID_QLOGIC_QLE844X:
1148         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
1149         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
1150                 *bar = QLCNIC_83XX_BAR0_LENGTH;
1151                 break;
1152         default:
1153                 *bar = 0;
1154         }
1155 }
1156
1157 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
1158                                 struct qlcnic_hardware_context *ahw)
1159 {
1160         u32 offset;
1161         void __iomem *mem_ptr0 = NULL;
1162         unsigned long mem_len, pci_len0 = 0, bar0_len;
1163
1164         /* remap phys address */
1165         mem_len = pci_resource_len(pdev, 0);
1166
1167         qlcnic_get_bar_length(pdev->device, &bar0_len);
1168         if (mem_len >= bar0_len) {
1169
1170                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
1171                 if (mem_ptr0 == NULL) {
1172                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
1173                         return -EIO;
1174                 }
1175                 pci_len0 = mem_len;
1176         } else {
1177                 return -EIO;
1178         }
1179
1180         dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
1181
1182         ahw->pci_base0 = mem_ptr0;
1183         ahw->pci_len0 = pci_len0;
1184         offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
1185         qlcnic_get_ioaddr(ahw, offset);
1186
1187         return 0;
1188 }
1189
1190 static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
1191                                          int index)
1192 {
1193         struct pci_dev *pdev = adapter->pdev;
1194         unsigned short subsystem_vendor;
1195         bool ret = true;
1196
1197         subsystem_vendor = pdev->subsystem_vendor;
1198
1199         if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
1200             pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1201                 if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
1202                     qlcnic_boards[index].sub_device == pdev->subsystem_device)
1203                         ret = true;
1204                 else
1205                         ret = false;
1206         }
1207
1208         return ret;
1209 }
1210
1211 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
1212 {
1213         struct pci_dev *pdev = adapter->pdev;
1214         int i, found = 0;
1215
1216         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1217                 if (qlcnic_boards[i].vendor == pdev->vendor &&
1218                     qlcnic_boards[i].device == pdev->device &&
1219                     qlcnic_validate_subsystem_id(adapter, i)) {
1220                         found = 1;
1221                         break;
1222                 }
1223         }
1224
1225         if (!found)
1226                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
1227         else
1228                 sprintf(name, "%pM: %s" , adapter->mac_addr,
1229                         qlcnic_boards[i].short_name);
1230 }
1231
1232 static void
1233 qlcnic_check_options(struct qlcnic_adapter *adapter)
1234 {
1235         int err;
1236         u32 fw_major, fw_minor, fw_build, prev_fw_version;
1237         struct pci_dev *pdev = adapter->pdev;
1238         struct qlcnic_hardware_context *ahw = adapter->ahw;
1239         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
1240
1241         prev_fw_version = adapter->fw_version;
1242
1243         fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
1244         fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
1245         fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
1246
1247         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
1248
1249         err = qlcnic_get_board_info(adapter);
1250         if (err) {
1251                 dev_err(&pdev->dev, "Error getting board config info.\n");
1252                 return;
1253         }
1254         if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
1255                 if (fw_dump->tmpl_hdr == NULL ||
1256                                 adapter->fw_version > prev_fw_version) {
1257                         if (fw_dump->tmpl_hdr)
1258                                 vfree(fw_dump->tmpl_hdr);
1259                         if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1260                                 dev_info(&pdev->dev,
1261                                         "Supports FW dump capability\n");
1262                 }
1263         }
1264
1265         dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
1266                  QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
1267
1268         if (adapter->ahw->port_type == QLCNIC_XGBE) {
1269                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1270                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
1271                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
1272                 } else {
1273                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
1274                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
1275                 }
1276
1277                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1278                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1279
1280         } else if (adapter->ahw->port_type == QLCNIC_GBE) {
1281                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
1282                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1283                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1284                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
1285         }
1286
1287         adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
1288
1289         adapter->num_txd = MAX_CMD_DESCRIPTORS;
1290
1291         adapter->max_rds_rings = MAX_RDS_RINGS;
1292 }
1293
1294 static int
1295 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
1296 {
1297         struct qlcnic_info nic_info;
1298         int err = 0;
1299
1300         memset(&nic_info, 0, sizeof(struct qlcnic_info));
1301         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
1302         if (err)
1303                 return err;
1304
1305         adapter->ahw->physical_port = (u8)nic_info.phys_port;
1306         adapter->ahw->switch_mode = nic_info.switch_mode;
1307         adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
1308         adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
1309         adapter->ahw->capabilities = nic_info.capabilities;
1310
1311         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1312                 u32 temp;
1313                 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
1314                 if (err == -EIO)
1315                         return err;
1316                 adapter->ahw->extra_capability[0] = temp;
1317         } else {
1318                 adapter->ahw->extra_capability[0] = 0;
1319         }
1320
1321         adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1322         adapter->ahw->max_mtu = nic_info.max_mtu;
1323
1324         if (adapter->ahw->capabilities & BIT_6) {
1325                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1326                 adapter->ahw->nic_mode = QLCNIC_VNIC_MODE;
1327                 adapter->max_tx_rings = QLCNIC_MAX_HW_VNIC_TX_RINGS;
1328                 adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
1329
1330                 dev_info(&adapter->pdev->dev, "vNIC mode enabled.\n");
1331         } else {
1332                 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1333                 adapter->max_tx_rings = QLCNIC_MAX_HW_TX_RINGS;
1334                 adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
1335                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1336         }
1337
1338         return err;
1339 }
1340
1341 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1342                             struct qlcnic_esw_func_cfg *esw_cfg)
1343 {
1344         if (esw_cfg->discard_tagged)
1345                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1346         else
1347                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1348
1349         if (esw_cfg->vlan_id) {
1350                 adapter->rx_pvid = esw_cfg->vlan_id;
1351                 adapter->tx_pvid = esw_cfg->vlan_id;
1352         } else {
1353                 adapter->rx_pvid = 0;
1354                 adapter->tx_pvid = 0;
1355         }
1356 }
1357
1358 static int
1359 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1360 {
1361         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1362         int err;
1363
1364         if (qlcnic_sriov_vf_check(adapter)) {
1365                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1366                 if (err) {
1367                         netdev_err(netdev,
1368                                    "Cannot add VLAN filter for VLAN id %d, err=%d",
1369                                    vid, err);
1370                         return err;
1371                 }
1372         }
1373
1374         set_bit(vid, adapter->vlans);
1375         return 0;
1376 }
1377
1378 static int
1379 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1380 {
1381         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1382         int err;
1383
1384         if (qlcnic_sriov_vf_check(adapter)) {
1385                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1386                 if (err) {
1387                         netdev_err(netdev,
1388                                    "Cannot delete VLAN filter for VLAN id %d, err=%d",
1389                                    vid, err);
1390                         return err;
1391                 }
1392         }
1393
1394         qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1395         clear_bit(vid, adapter->vlans);
1396         return 0;
1397 }
1398
1399 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1400                                       struct qlcnic_esw_func_cfg *esw_cfg)
1401 {
1402         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1403                                 QLCNIC_PROMISC_DISABLED);
1404
1405         if (esw_cfg->mac_anti_spoof)
1406                 adapter->flags |= QLCNIC_MACSPOOF;
1407
1408         if (!esw_cfg->mac_override)
1409                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1410
1411         if (!esw_cfg->promisc_mode)
1412                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1413 }
1414
1415 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1416 {
1417         struct qlcnic_esw_func_cfg esw_cfg;
1418
1419         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1420                 return 0;
1421
1422         esw_cfg.pci_func = adapter->ahw->pci_func;
1423         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1424                         return -EIO;
1425         qlcnic_set_vlan_config(adapter, &esw_cfg);
1426         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1427         qlcnic_set_netdev_features(adapter, &esw_cfg);
1428
1429         return 0;
1430 }
1431
1432 void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1433                                 struct qlcnic_esw_func_cfg *esw_cfg)
1434 {
1435         struct net_device *netdev = adapter->netdev;
1436
1437         if (qlcnic_83xx_check(adapter))
1438                 return;
1439
1440         adapter->offload_flags = esw_cfg->offload_flags;
1441         adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1442         netdev_update_features(netdev);
1443         adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1444 }
1445
1446 static int
1447 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1448 {
1449         u32 op_mode, priv_level;
1450         int err = 0;
1451
1452         err = qlcnic_initialize_nic(adapter);
1453         if (err)
1454                 return err;
1455
1456         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1457                 return 0;
1458
1459         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1460         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1461
1462         if (op_mode == QLC_DEV_DRV_DEFAULT)
1463                 priv_level = QLCNIC_MGMT_FUNC;
1464         else
1465                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1466
1467         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1468                 if (priv_level == QLCNIC_MGMT_FUNC) {
1469                         adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1470                         err = qlcnic_init_pci_info(adapter);
1471                         if (err)
1472                                 return err;
1473                         /* Set privilege level for other functions */
1474                         qlcnic_set_function_modes(adapter);
1475                         dev_info(&adapter->pdev->dev,
1476                                 "HAL Version: %d, Management function\n",
1477                                  adapter->ahw->fw_hal_version);
1478                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1479                         adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1480                         dev_info(&adapter->pdev->dev,
1481                                 "HAL Version: %d, Privileged function\n",
1482                                  adapter->ahw->fw_hal_version);
1483                 }
1484         } else {
1485                 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1486         }
1487
1488         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1489
1490         return err;
1491 }
1492
1493 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1494 {
1495         struct qlcnic_esw_func_cfg esw_cfg;
1496         struct qlcnic_npar_info *npar;
1497         u8 i;
1498
1499         if (adapter->need_fw_reset)
1500                 return 0;
1501
1502         for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1503                 if (!adapter->npars[i].eswitch_status)
1504                         continue;
1505
1506                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1507                 esw_cfg.pci_func = adapter->npars[i].pci_func;
1508                 esw_cfg.mac_override = BIT_0;
1509                 esw_cfg.promisc_mode = BIT_0;
1510                 if (qlcnic_82xx_check(adapter)) {
1511                         esw_cfg.offload_flags = BIT_0;
1512                         if (QLCNIC_IS_TSO_CAPABLE(adapter))
1513                                 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1514                 }
1515                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1516                         return -EIO;
1517                 npar = &adapter->npars[i];
1518                 npar->pvid = esw_cfg.vlan_id;
1519                 npar->mac_override = esw_cfg.mac_override;
1520                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1521                 npar->discard_tagged = esw_cfg.discard_tagged;
1522                 npar->promisc_mode = esw_cfg.promisc_mode;
1523                 npar->offload_flags = esw_cfg.offload_flags;
1524         }
1525
1526         return 0;
1527 }
1528
1529
1530 static int
1531 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1532                         struct qlcnic_npar_info *npar, int pci_func)
1533 {
1534         struct qlcnic_esw_func_cfg esw_cfg;
1535         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1536         esw_cfg.pci_func = pci_func;
1537         esw_cfg.vlan_id = npar->pvid;
1538         esw_cfg.mac_override = npar->mac_override;
1539         esw_cfg.discard_tagged = npar->discard_tagged;
1540         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1541         esw_cfg.offload_flags = npar->offload_flags;
1542         esw_cfg.promisc_mode = npar->promisc_mode;
1543         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1544                 return -EIO;
1545
1546         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1547         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1548                 return -EIO;
1549
1550         return 0;
1551 }
1552
1553 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1554 {
1555         int i, err;
1556         struct qlcnic_npar_info *npar;
1557         struct qlcnic_info nic_info;
1558         u8 pci_func;
1559
1560         if (qlcnic_82xx_check(adapter))
1561                 if (!adapter->need_fw_reset)
1562                         return 0;
1563
1564         /* Set the NPAR config data after FW reset */
1565         for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1566                 npar = &adapter->npars[i];
1567                 pci_func = npar->pci_func;
1568                 if (!adapter->npars[i].eswitch_status)
1569                         continue;
1570
1571                 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1572                 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1573                 if (err)
1574                         return err;
1575                 nic_info.min_tx_bw = npar->min_bw;
1576                 nic_info.max_tx_bw = npar->max_bw;
1577                 err = qlcnic_set_nic_info(adapter, &nic_info);
1578                 if (err)
1579                         return err;
1580
1581                 if (npar->enable_pm) {
1582                         err = qlcnic_config_port_mirroring(adapter,
1583                                                            npar->dest_npar, 1,
1584                                                            pci_func);
1585                         if (err)
1586                                 return err;
1587                 }
1588                 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1589                 if (err)
1590                         return err;
1591         }
1592         return 0;
1593 }
1594
1595 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1596 {
1597         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1598         u32 npar_state;
1599
1600         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1601                 return 0;
1602
1603         npar_state = QLC_SHARED_REG_RD32(adapter,
1604                                          QLCNIC_CRB_DEV_NPAR_STATE);
1605         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1606                 msleep(1000);
1607                 npar_state = QLC_SHARED_REG_RD32(adapter,
1608                                                  QLCNIC_CRB_DEV_NPAR_STATE);
1609         }
1610         if (!npar_opt_timeo) {
1611                 dev_err(&adapter->pdev->dev,
1612                         "Waiting for NPAR state to operational timeout\n");
1613                 return -EIO;
1614         }
1615         return 0;
1616 }
1617
1618 static int
1619 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1620 {
1621         int err;
1622
1623         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1624             adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1625                 return 0;
1626
1627         err = qlcnic_set_default_offload_settings(adapter);
1628         if (err)
1629                 return err;
1630
1631         err = qlcnic_reset_npar_config(adapter);
1632         if (err)
1633                 return err;
1634
1635         qlcnic_dev_set_npar_ready(adapter);
1636
1637         return err;
1638 }
1639
1640 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1641 {
1642         int err;
1643
1644         err = qlcnic_can_start_firmware(adapter);
1645         if (err < 0)
1646                 return err;
1647         else if (!err)
1648                 goto check_fw_status;
1649
1650         if (qlcnic_load_fw_file)
1651                 qlcnic_request_firmware(adapter);
1652         else {
1653                 err = qlcnic_check_flash_fw_ver(adapter);
1654                 if (err)
1655                         goto err_out;
1656
1657                 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1658         }
1659
1660         err = qlcnic_need_fw_reset(adapter);
1661         if (err == 0)
1662                 goto check_fw_status;
1663
1664         err = qlcnic_pinit_from_rom(adapter);
1665         if (err)
1666                 goto err_out;
1667
1668         err = qlcnic_load_firmware(adapter);
1669         if (err)
1670                 goto err_out;
1671
1672         qlcnic_release_firmware(adapter);
1673         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1674
1675 check_fw_status:
1676         err = qlcnic_check_fw_status(adapter);
1677         if (err)
1678                 goto err_out;
1679
1680         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1681         qlcnic_idc_debug_info(adapter, 1);
1682         err = qlcnic_check_eswitch_mode(adapter);
1683         if (err) {
1684                 dev_err(&adapter->pdev->dev,
1685                         "Memory allocation failed for eswitch\n");
1686                 goto err_out;
1687         }
1688         err = qlcnic_set_mgmt_operations(adapter);
1689         if (err)
1690                 goto err_out;
1691
1692         qlcnic_check_options(adapter);
1693         adapter->need_fw_reset = 0;
1694
1695         qlcnic_release_firmware(adapter);
1696         return 0;
1697
1698 err_out:
1699         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1700         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1701
1702         qlcnic_release_firmware(adapter);
1703         return err;
1704 }
1705
1706 static int
1707 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1708 {
1709         irq_handler_t handler;
1710         struct qlcnic_host_sds_ring *sds_ring;
1711         struct qlcnic_host_tx_ring *tx_ring;
1712         int err, ring, num_sds_rings;
1713
1714         unsigned long flags = 0;
1715         struct net_device *netdev = adapter->netdev;
1716         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1717
1718         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1719                 if (qlcnic_82xx_check(adapter))
1720                         handler = qlcnic_tmp_intr;
1721                 else
1722                         handler = qlcnic_83xx_tmp_intr;
1723                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1724                         flags |= IRQF_SHARED;
1725
1726         } else {
1727                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1728                         handler = qlcnic_msix_intr;
1729                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1730                         handler = qlcnic_msi_intr;
1731                 else {
1732                         flags |= IRQF_SHARED;
1733                         if (qlcnic_82xx_check(adapter))
1734                                 handler = qlcnic_intr;
1735                         else
1736                                 handler = qlcnic_83xx_intr;
1737                 }
1738         }
1739         adapter->irq = netdev->irq;
1740
1741         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1742                 if (qlcnic_82xx_check(adapter) ||
1743                     (qlcnic_83xx_check(adapter) &&
1744                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1745                         num_sds_rings = adapter->drv_sds_rings;
1746                         for (ring = 0; ring < num_sds_rings; ring++) {
1747                                 sds_ring = &recv_ctx->sds_rings[ring];
1748                                 if (qlcnic_82xx_check(adapter) &&
1749                                     !qlcnic_check_multi_tx(adapter) &&
1750                                     (ring == (num_sds_rings - 1))) {
1751                                         if (!(adapter->flags &
1752                                               QLCNIC_MSIX_ENABLED))
1753                                                 snprintf(sds_ring->name,
1754                                                          sizeof(sds_ring->name),
1755                                                          "qlcnic");
1756                                         else
1757                                                 snprintf(sds_ring->name,
1758                                                          sizeof(sds_ring->name),
1759                                                          "%s-tx-0-rx-%d",
1760                                                          netdev->name, ring);
1761                                 } else {
1762                                         snprintf(sds_ring->name,
1763                                                  sizeof(sds_ring->name),
1764                                                  "%s-rx-%d",
1765                                                  netdev->name, ring);
1766                                 }
1767                                 err = request_irq(sds_ring->irq, handler, flags,
1768                                                   sds_ring->name, sds_ring);
1769                                 if (err)
1770                                         return err;
1771                         }
1772                 }
1773                 if ((qlcnic_82xx_check(adapter) &&
1774                      qlcnic_check_multi_tx(adapter)) ||
1775                     (qlcnic_83xx_check(adapter) &&
1776                      (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1777                      !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
1778                         handler = qlcnic_msix_tx_intr;
1779                         for (ring = 0; ring < adapter->drv_tx_rings;
1780                              ring++) {
1781                                 tx_ring = &adapter->tx_ring[ring];
1782                                 snprintf(tx_ring->name, sizeof(tx_ring->name),
1783                                          "%s-tx-%d", netdev->name, ring);
1784                                 err = request_irq(tx_ring->irq, handler, flags,
1785                                                   tx_ring->name, tx_ring);
1786                                 if (err)
1787                                         return err;
1788                         }
1789                 }
1790         }
1791         return 0;
1792 }
1793
1794 static void
1795 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1796 {
1797         int ring;
1798         struct qlcnic_host_sds_ring *sds_ring;
1799         struct qlcnic_host_tx_ring *tx_ring;
1800
1801         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1802
1803         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1804                 if (qlcnic_82xx_check(adapter) ||
1805                     (qlcnic_83xx_check(adapter) &&
1806                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1807                         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1808                                 sds_ring = &recv_ctx->sds_rings[ring];
1809                                 free_irq(sds_ring->irq, sds_ring);
1810                         }
1811                 }
1812                 if ((qlcnic_83xx_check(adapter) &&
1813                      !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
1814                     (qlcnic_82xx_check(adapter) &&
1815                      qlcnic_check_multi_tx(adapter))) {
1816                         for (ring = 0; ring < adapter->drv_tx_rings;
1817                              ring++) {
1818                                 tx_ring = &adapter->tx_ring[ring];
1819                                 if (tx_ring->irq)
1820                                         free_irq(tx_ring->irq, tx_ring);
1821                         }
1822                 }
1823         }
1824 }
1825
1826 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1827 {
1828         u32 capab = 0;
1829
1830         if (qlcnic_82xx_check(adapter)) {
1831                 if (adapter->ahw->extra_capability[0] &
1832                     QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1833                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1834         } else {
1835                 capab = adapter->ahw->capabilities;
1836                 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1837                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1838         }
1839 }
1840
1841 static int qlcnic_config_def_intr_coalesce(struct qlcnic_adapter *adapter)
1842 {
1843         struct qlcnic_hardware_context *ahw = adapter->ahw;
1844         int err;
1845
1846         /* Initialize interrupt coalesce parameters */
1847         ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1848
1849         if (qlcnic_83xx_check(adapter)) {
1850                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
1851                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1852                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1853                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1854                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1855
1856                 err = qlcnic_83xx_set_rx_tx_intr_coal(adapter);
1857         } else {
1858                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1859                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1860                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1861
1862                 err = qlcnic_82xx_set_rx_coalesce(adapter);
1863         }
1864
1865         return err;
1866 }
1867
1868 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1869 {
1870         int ring;
1871         struct qlcnic_host_rds_ring *rds_ring;
1872
1873         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1874                 return -EIO;
1875
1876         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1877                 return 0;
1878
1879         if (qlcnic_set_eswitch_port_config(adapter))
1880                 return -EIO;
1881
1882         qlcnic_get_lro_mss_capability(adapter);
1883
1884         if (qlcnic_fw_create_ctx(adapter))
1885                 return -EIO;
1886
1887         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1888                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1889                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1890         }
1891
1892         qlcnic_set_multi(netdev);
1893         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1894
1895         adapter->ahw->linkup = 0;
1896
1897         if (adapter->drv_sds_rings > 1)
1898                 qlcnic_config_rss(adapter, 1);
1899
1900         qlcnic_config_def_intr_coalesce(adapter);
1901
1902         if (netdev->features & NETIF_F_LRO)
1903                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1904
1905         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1906         qlcnic_napi_enable(adapter);
1907
1908         qlcnic_linkevent_request(adapter, 1);
1909
1910         adapter->ahw->reset_context = 0;
1911         netif_tx_start_all_queues(netdev);
1912         return 0;
1913 }
1914
1915 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1916 {
1917         int err = 0;
1918
1919         rtnl_lock();
1920         if (netif_running(netdev))
1921                 err = __qlcnic_up(adapter, netdev);
1922         rtnl_unlock();
1923
1924         return err;
1925 }
1926
1927 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1928 {
1929         int ring;
1930
1931         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1932                 return;
1933
1934         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1935                 return;
1936
1937         smp_mb();
1938         netif_carrier_off(netdev);
1939         adapter->ahw->linkup = 0;
1940         netif_tx_disable(netdev);
1941
1942         qlcnic_free_mac_list(adapter);
1943
1944         if (adapter->fhash.fnum)
1945                 qlcnic_delete_lb_filters(adapter);
1946
1947         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1948         if (qlcnic_sriov_vf_check(adapter))
1949                 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1950
1951         qlcnic_napi_disable(adapter);
1952
1953         qlcnic_fw_destroy_ctx(adapter);
1954         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1955
1956         qlcnic_reset_rx_buffers_list(adapter);
1957
1958         for (ring = 0; ring < adapter->drv_tx_rings; ring++)
1959                 qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
1960 }
1961
1962 /* Usage: During suspend and firmware recovery module */
1963
1964 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1965 {
1966         rtnl_lock();
1967         if (netif_running(netdev))
1968                 __qlcnic_down(adapter, netdev);
1969         rtnl_unlock();
1970
1971 }
1972
1973 int
1974 qlcnic_attach(struct qlcnic_adapter *adapter)
1975 {
1976         struct net_device *netdev = adapter->netdev;
1977         struct pci_dev *pdev = adapter->pdev;
1978         int err;
1979
1980         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1981                 return 0;
1982
1983         err = qlcnic_napi_add(adapter, netdev);
1984         if (err)
1985                 return err;
1986
1987         err = qlcnic_alloc_sw_resources(adapter);
1988         if (err) {
1989                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1990                 goto err_out_napi_del;
1991         }
1992
1993         err = qlcnic_alloc_hw_resources(adapter);
1994         if (err) {
1995                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1996                 goto err_out_free_sw;
1997         }
1998
1999         err = qlcnic_request_irq(adapter);
2000         if (err) {
2001                 dev_err(&pdev->dev, "failed to setup interrupt\n");
2002                 goto err_out_free_hw;
2003         }
2004
2005         qlcnic_create_sysfs_entries(adapter);
2006
2007 #ifdef CONFIG_QLCNIC_VXLAN
2008         if (qlcnic_encap_rx_offload(adapter))
2009                 vxlan_get_rx_port(netdev);
2010 #endif
2011
2012         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
2013         return 0;
2014
2015 err_out_free_hw:
2016         qlcnic_free_hw_resources(adapter);
2017 err_out_free_sw:
2018         qlcnic_free_sw_resources(adapter);
2019 err_out_napi_del:
2020         qlcnic_napi_del(adapter);
2021         return err;
2022 }
2023
2024 void qlcnic_detach(struct qlcnic_adapter *adapter)
2025 {
2026         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2027                 return;
2028
2029         qlcnic_remove_sysfs_entries(adapter);
2030
2031         qlcnic_free_hw_resources(adapter);
2032         qlcnic_release_rx_buffers(adapter);
2033         qlcnic_free_irq(adapter);
2034         qlcnic_napi_del(adapter);
2035         qlcnic_free_sw_resources(adapter);
2036
2037         adapter->is_up = 0;
2038 }
2039
2040 void qlcnic_diag_free_res(struct net_device *netdev, int drv_sds_rings)
2041 {
2042         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2043         struct qlcnic_host_sds_ring *sds_ring;
2044         int drv_tx_rings = adapter->drv_tx_rings;
2045         int ring;
2046
2047         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
2048         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2049                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2050                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
2051                         qlcnic_disable_sds_intr(adapter, sds_ring);
2052                 }
2053         }
2054
2055         qlcnic_fw_destroy_ctx(adapter);
2056
2057         qlcnic_detach(adapter);
2058
2059         adapter->ahw->diag_test = 0;
2060         adapter->drv_sds_rings = drv_sds_rings;
2061         adapter->drv_tx_rings = drv_tx_rings;
2062
2063         if (qlcnic_attach(adapter))
2064                 goto out;
2065
2066         if (netif_running(netdev))
2067                 __qlcnic_up(adapter, netdev);
2068 out:
2069         netif_device_attach(netdev);
2070 }
2071
2072 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
2073 {
2074         struct qlcnic_hardware_context *ahw = adapter->ahw;
2075         int err = 0;
2076
2077         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
2078                                 GFP_KERNEL);
2079         if (!adapter->recv_ctx) {
2080                 err = -ENOMEM;
2081                 goto err_out;
2082         }
2083
2084         if (qlcnic_83xx_check(adapter)) {
2085                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
2086                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
2087                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
2088                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2089                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2090         } else {
2091                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
2092                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2093                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2094         }
2095
2096         /* clear stats */
2097         memset(&adapter->stats, 0, sizeof(adapter->stats));
2098 err_out:
2099         return err;
2100 }
2101
2102 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
2103 {
2104         struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
2105
2106         kfree(adapter->recv_ctx);
2107         adapter->recv_ctx = NULL;
2108
2109         if (fw_dump->tmpl_hdr) {
2110                 vfree(fw_dump->tmpl_hdr);
2111                 fw_dump->tmpl_hdr = NULL;
2112         }
2113
2114         if (fw_dump->dma_buffer) {
2115                 dma_free_coherent(&adapter->pdev->dev, QLC_PEX_DMA_READ_SIZE,
2116                                   fw_dump->dma_buffer, fw_dump->phys_addr);
2117                 fw_dump->dma_buffer = NULL;
2118         }
2119
2120         kfree(adapter->ahw->reset.buff);
2121         adapter->ahw->fw_dump.tmpl_hdr = NULL;
2122 }
2123
2124 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
2125 {
2126         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2127         struct qlcnic_host_sds_ring *sds_ring;
2128         struct qlcnic_host_rds_ring *rds_ring;
2129         int ring;
2130         int ret;
2131
2132         netif_device_detach(netdev);
2133
2134         if (netif_running(netdev))
2135                 __qlcnic_down(adapter, netdev);
2136
2137         qlcnic_detach(adapter);
2138
2139         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
2140         adapter->ahw->diag_test = test;
2141         adapter->ahw->linkup = 0;
2142
2143         ret = qlcnic_attach(adapter);
2144         if (ret) {
2145                 netif_device_attach(netdev);
2146                 return ret;
2147         }
2148
2149         ret = qlcnic_fw_create_ctx(adapter);
2150         if (ret) {
2151                 qlcnic_detach(adapter);
2152                 netif_device_attach(netdev);
2153                 return ret;
2154         }
2155
2156         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
2157                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
2158                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
2159         }
2160
2161         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2162                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2163                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
2164                         qlcnic_enable_sds_intr(adapter, sds_ring);
2165                 }
2166         }
2167
2168         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
2169                 adapter->ahw->loopback_state = 0;
2170                 qlcnic_linkevent_request(adapter, 1);
2171         }
2172
2173         set_bit(__QLCNIC_DEV_UP, &adapter->state);
2174
2175         return 0;
2176 }
2177
2178 /* Reset context in hardware only */
2179 static int
2180 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
2181 {
2182         struct net_device *netdev = adapter->netdev;
2183
2184         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2185                 return -EBUSY;
2186
2187         netif_device_detach(netdev);
2188
2189         qlcnic_down(adapter, netdev);
2190
2191         qlcnic_up(adapter, netdev);
2192
2193         netif_device_attach(netdev);
2194
2195         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2196         netdev_info(adapter->netdev, "%s: soft reset complete\n", __func__);
2197         return 0;
2198 }
2199
2200 int
2201 qlcnic_reset_context(struct qlcnic_adapter *adapter)
2202 {
2203         int err = 0;
2204         struct net_device *netdev = adapter->netdev;
2205
2206         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2207                 return -EBUSY;
2208
2209         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
2210
2211                 netif_device_detach(netdev);
2212
2213                 if (netif_running(netdev))
2214                         __qlcnic_down(adapter, netdev);
2215
2216                 qlcnic_detach(adapter);
2217
2218                 if (netif_running(netdev)) {
2219                         err = qlcnic_attach(adapter);
2220                         if (!err) {
2221                                 __qlcnic_up(adapter, netdev);
2222                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2223                         }
2224                 }
2225
2226                 netif_device_attach(netdev);
2227         }
2228
2229         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2230         return err;
2231 }
2232
2233 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
2234 {
2235         struct qlcnic_hardware_context *ahw = adapter->ahw;
2236         u16 act_pci_fn = ahw->total_nic_func;
2237         u16 count;
2238
2239         ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
2240         if (act_pci_fn <= 2)
2241                 count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
2242                          act_pci_fn;
2243         else
2244                 count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
2245                          act_pci_fn;
2246         ahw->max_uc_count = count;
2247 }
2248
2249 static int qlcnic_set_real_num_queues(struct qlcnic_adapter *adapter,
2250                                       u8 tx_queues, u8 rx_queues)
2251 {
2252         struct net_device *netdev = adapter->netdev;
2253         int err = 0;
2254
2255         if (tx_queues) {
2256                 err = netif_set_real_num_tx_queues(netdev, tx_queues);
2257                 if (err) {
2258                         netdev_err(netdev, "failed to set %d Tx queues\n",
2259                                    tx_queues);
2260                         return err;
2261                 }
2262         }
2263
2264         if (rx_queues) {
2265                 err = netif_set_real_num_rx_queues(netdev, rx_queues);
2266                 if (err)
2267                         netdev_err(netdev, "failed to set %d Rx queues\n",
2268                                    rx_queues);
2269         }
2270
2271         return err;
2272 }
2273
2274 int
2275 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
2276                     int pci_using_dac)
2277 {
2278         int err;
2279         struct pci_dev *pdev = adapter->pdev;
2280
2281         adapter->rx_csum = 1;
2282         adapter->ahw->mc_enabled = 0;
2283         qlcnic_set_mac_filter_count(adapter);
2284
2285         netdev->netdev_ops         = &qlcnic_netdev_ops;
2286         netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
2287
2288         qlcnic_change_mtu(netdev, netdev->mtu);
2289
2290         netdev->ethtool_ops = (qlcnic_sriov_vf_check(adapter)) ?
2291                 &qlcnic_sriov_vf_ethtool_ops : &qlcnic_ethtool_ops;
2292
2293         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2294                              NETIF_F_IPV6_CSUM | NETIF_F_GRO |
2295                              NETIF_F_HW_VLAN_CTAG_RX);
2296         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
2297                                   NETIF_F_IPV6_CSUM);
2298
2299         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
2300                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
2301                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
2302         }
2303
2304         if (pci_using_dac) {
2305                 netdev->features |= NETIF_F_HIGHDMA;
2306                 netdev->vlan_features |= NETIF_F_HIGHDMA;
2307         }
2308
2309         if (qlcnic_vlan_tx_check(adapter))
2310                 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
2311
2312         if (qlcnic_sriov_vf_check(adapter))
2313                 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2314
2315         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
2316                 netdev->features |= NETIF_F_LRO;
2317
2318         if (qlcnic_encap_tx_offload(adapter)) {
2319                 netdev->features |= NETIF_F_GSO_UDP_TUNNEL;
2320
2321                 /* encapsulation Tx offload supported by Adapter */
2322                 netdev->hw_enc_features = NETIF_F_IP_CSUM        |
2323                                           NETIF_F_GSO_UDP_TUNNEL |
2324                                           NETIF_F_TSO            |
2325                                           NETIF_F_TSO6;
2326         }
2327
2328         if (qlcnic_encap_rx_offload(adapter))
2329                 netdev->hw_enc_features |= NETIF_F_RXCSUM;
2330
2331         netdev->hw_features = netdev->features;
2332         netdev->priv_flags |= IFF_UNICAST_FLT;
2333         netdev->irq = adapter->msix_entries[0].vector;
2334
2335         err = qlcnic_set_real_num_queues(adapter, adapter->drv_tx_rings,
2336                                          adapter->drv_sds_rings);
2337         if (err)
2338                 return err;
2339
2340         qlcnic_dcb_init_dcbnl_ops(adapter->dcb);
2341
2342         err = register_netdev(netdev);
2343         if (err) {
2344                 dev_err(&pdev->dev, "failed to register net device\n");
2345                 return err;
2346         }
2347
2348         return 0;
2349 }
2350
2351 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
2352 {
2353         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
2354                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
2355                 *pci_using_dac = 1;
2356         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
2357                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
2358                 *pci_using_dac = 0;
2359         else {
2360                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
2361                 return -EIO;
2362         }
2363
2364         return 0;
2365 }
2366
2367 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
2368 {
2369         int ring;
2370         struct qlcnic_host_tx_ring *tx_ring;
2371
2372         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2373                 tx_ring = &adapter->tx_ring[ring];
2374                 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
2375                         vfree(tx_ring->cmd_buf_arr);
2376                         tx_ring->cmd_buf_arr = NULL;
2377                 }
2378         }
2379         if (adapter->tx_ring != NULL)
2380                 kfree(adapter->tx_ring);
2381 }
2382
2383 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
2384                           struct net_device *netdev)
2385 {
2386         int ring, vector, index;
2387         struct qlcnic_host_tx_ring *tx_ring;
2388         struct qlcnic_cmd_buffer *cmd_buf_arr;
2389
2390         tx_ring = kcalloc(adapter->drv_tx_rings,
2391                           sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
2392         if (tx_ring == NULL)
2393                 return -ENOMEM;
2394
2395         adapter->tx_ring = tx_ring;
2396
2397         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2398                 tx_ring = &adapter->tx_ring[ring];
2399                 tx_ring->num_desc = adapter->num_txd;
2400                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
2401                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
2402                 if (cmd_buf_arr == NULL) {
2403                         qlcnic_free_tx_rings(adapter);
2404                         return -ENOMEM;
2405                 }
2406                 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
2407                 tx_ring->cmd_buf_arr = cmd_buf_arr;
2408                 spin_lock_init(&tx_ring->tx_clean_lock);
2409         }
2410
2411         if (qlcnic_83xx_check(adapter) ||
2412             (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
2413                 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2414                         tx_ring = &adapter->tx_ring[ring];
2415                         tx_ring->adapter = adapter;
2416                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
2417                                 index = adapter->drv_sds_rings + ring;
2418                                 vector = adapter->msix_entries[index].vector;
2419                                 tx_ring->irq = vector;
2420                         }
2421                 }
2422         }
2423
2424         return 0;
2425 }
2426
2427 void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
2428 {
2429         struct qlcnic_hardware_context *ahw = adapter->ahw;
2430         u32 fw_cmd = 0;
2431
2432         if (qlcnic_82xx_check(adapter))
2433                 fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
2434         else if (qlcnic_83xx_check(adapter))
2435                 fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
2436
2437         if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER)
2438                 qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
2439 }
2440
2441 /* Reset firmware API lock */
2442 static void qlcnic_reset_api_lock(struct qlcnic_adapter *adapter)
2443 {
2444         qlcnic_api_lock(adapter);
2445         qlcnic_api_unlock(adapter);
2446 }
2447
2448
2449 static int
2450 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2451 {
2452         struct net_device *netdev = NULL;
2453         struct qlcnic_adapter *adapter = NULL;
2454         struct qlcnic_hardware_context *ahw;
2455         int err, pci_using_dac = -1;
2456         char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
2457
2458         err = pci_enable_device(pdev);
2459         if (err)
2460                 return err;
2461
2462         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2463                 err = -ENODEV;
2464                 goto err_out_disable_pdev;
2465         }
2466
2467         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
2468         if (err)
2469                 goto err_out_disable_pdev;
2470
2471         err = pci_request_regions(pdev, qlcnic_driver_name);
2472         if (err)
2473                 goto err_out_disable_pdev;
2474
2475         pci_set_master(pdev);
2476         pci_enable_pcie_error_reporting(pdev);
2477
2478         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2479         if (!ahw) {
2480                 err = -ENOMEM;
2481                 goto err_out_free_res;
2482         }
2483
2484         switch (ent->device) {
2485         case PCI_DEVICE_ID_QLOGIC_QLE824X:
2486                 ahw->hw_ops = &qlcnic_hw_ops;
2487                 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2488                 break;
2489         case PCI_DEVICE_ID_QLOGIC_QLE834X:
2490         case PCI_DEVICE_ID_QLOGIC_QLE8830:
2491         case PCI_DEVICE_ID_QLOGIC_QLE844X:
2492                 qlcnic_83xx_register_map(ahw);
2493                 break;
2494         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2495         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2496                 qlcnic_sriov_vf_register_map(ahw);
2497                 break;
2498         default:
2499                 goto err_out_free_hw_res;
2500         }
2501
2502         err = qlcnic_setup_pci_map(pdev, ahw);
2503         if (err)
2504                 goto err_out_free_hw_res;
2505
2506         netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
2507                                    QLCNIC_MAX_TX_RINGS);
2508         if (!netdev) {
2509                 err = -ENOMEM;
2510                 goto err_out_iounmap;
2511         }
2512
2513         SET_NETDEV_DEV(netdev, &pdev->dev);
2514
2515         adapter = netdev_priv(netdev);
2516         adapter->netdev  = netdev;
2517         adapter->pdev    = pdev;
2518         adapter->ahw = ahw;
2519
2520         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2521         if (adapter->qlcnic_wq == NULL) {
2522                 err = -ENOMEM;
2523                 dev_err(&pdev->dev, "Failed to create workqueue\n");
2524                 goto err_out_free_netdev;
2525         }
2526
2527         err = qlcnic_alloc_adapter_resources(adapter);
2528         if (err)
2529                 goto err_out_free_wq;
2530
2531         adapter->dev_rst_time = jiffies;
2532         ahw->revision_id = pdev->revision;
2533         ahw->max_vnic_func = qlcnic_get_vnic_func_count(adapter);
2534         if (qlcnic_mac_learn == FDB_MAC_LEARN)
2535                 adapter->fdb_mac_learn = true;
2536         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2537                 adapter->drv_mac_learn = true;
2538
2539         rwlock_init(&adapter->ahw->crb_lock);
2540         mutex_init(&adapter->ahw->mem_lock);
2541
2542         INIT_LIST_HEAD(&adapter->mac_list);
2543
2544         qlcnic_register_dcb(adapter);
2545
2546         if (qlcnic_82xx_check(adapter)) {
2547                 qlcnic_check_vf(adapter, ent);
2548                 adapter->portnum = adapter->ahw->pci_func;
2549                 qlcnic_reset_api_lock(adapter);
2550                 err = qlcnic_start_firmware(adapter);
2551                 if (err) {
2552                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
2553                                 "\t\tIf reboot doesn't help, try flashing the card\n");
2554                         goto err_out_maintenance_mode;
2555                 }
2556
2557                 /* compute and set default and max tx/sds rings */
2558                 if (adapter->ahw->msix_supported) {
2559                         if (qlcnic_check_multi_tx_capability(adapter) == 1)
2560                                 qlcnic_set_tx_ring_count(adapter,
2561                                                          QLCNIC_SINGLE_RING);
2562                         else
2563                                 qlcnic_set_tx_ring_count(adapter,
2564                                                          QLCNIC_DEF_TX_RINGS);
2565                         qlcnic_set_sds_ring_count(adapter,
2566                                                   QLCNIC_DEF_SDS_RINGS);
2567                 } else {
2568                         qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
2569                         qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
2570                 }
2571
2572                 err = qlcnic_setup_idc_param(adapter);
2573                 if (err)
2574                         goto err_out_free_hw;
2575
2576                 adapter->flags |= QLCNIC_NEED_FLR;
2577
2578         } else if (qlcnic_83xx_check(adapter)) {
2579                 qlcnic_83xx_check_vf(adapter, ent);
2580                 adapter->portnum = adapter->ahw->pci_func;
2581                 err = qlcnic_83xx_init(adapter, pci_using_dac);
2582                 if (err) {
2583                         switch (err) {
2584                         case -ENOTRECOVERABLE:
2585                                 dev_err(&pdev->dev, "Adapter initialization failed due to a faulty hardware\n");
2586                                 dev_err(&pdev->dev, "Please replace the adapter with new one and return the faulty adapter for repair\n");
2587                                 goto err_out_free_hw;
2588                         case -ENOMEM:
2589                                 dev_err(&pdev->dev, "Adapter initialization failed. Please reboot\n");
2590                                 goto err_out_free_hw;
2591                         case -EOPNOTSUPP:
2592                                 dev_err(&pdev->dev, "Adapter initialization failed\n");
2593                                 goto err_out_free_hw;
2594                         default:
2595                                 dev_err(&pdev->dev, "Adapter initialization failed. Driver will load in maintenance mode to recover the adapter using the application\n");
2596                                 goto err_out_maintenance_mode;
2597                         }
2598                 }
2599
2600                 if (qlcnic_sriov_vf_check(adapter))
2601                         return 0;
2602         } else {
2603                 dev_err(&pdev->dev,
2604                         "%s: failed. Please Reboot\n", __func__);
2605                 goto err_out_free_hw;
2606         }
2607
2608         if (qlcnic_read_mac_addr(adapter))
2609                 dev_warn(&pdev->dev, "failed to read mac addr\n");
2610
2611         qlcnic_read_phys_port_id(adapter);
2612
2613         if (adapter->portnum == 0) {
2614                 qlcnic_get_board_name(adapter, board_name);
2615
2616                 pr_info("%s: %s Board Chip rev 0x%x\n",
2617                         module_name(THIS_MODULE),
2618                         board_name, adapter->ahw->revision_id);
2619         }
2620
2621         if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2622             !!qlcnic_use_msi)
2623                 dev_warn(&pdev->dev,
2624                          "Device does not support MSI interrupts\n");
2625
2626         if (qlcnic_82xx_check(adapter)) {
2627                 qlcnic_dcb_enable(adapter->dcb);
2628                 qlcnic_dcb_get_info(adapter->dcb);
2629                 err = qlcnic_setup_intr(adapter);
2630
2631                 if (err) {
2632                         dev_err(&pdev->dev, "Failed to setup interrupt\n");
2633                         goto err_out_disable_msi;
2634                 }
2635         }
2636
2637         err = qlcnic_get_act_pci_func(adapter);
2638         if (err)
2639                 goto err_out_disable_mbx_intr;
2640
2641         if (adapter->portnum == 0)
2642                 qlcnic_set_drv_version(adapter);
2643
2644         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2645         if (err)
2646                 goto err_out_disable_mbx_intr;
2647
2648         pci_set_drvdata(pdev, adapter);
2649
2650         if (qlcnic_82xx_check(adapter))
2651                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2652                                      FW_POLL_DELAY);
2653
2654         switch (adapter->ahw->port_type) {
2655         case QLCNIC_GBE:
2656                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2657                                 adapter->netdev->name);
2658                 break;
2659         case QLCNIC_XGBE:
2660                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2661                                 adapter->netdev->name);
2662                 break;
2663         }
2664
2665         if (adapter->drv_mac_learn)
2666                 qlcnic_alloc_lb_filters_mem(adapter);
2667
2668         qlcnic_add_sysfs(adapter);
2669         qlcnic_register_hwmon_dev(adapter);
2670         return 0;
2671
2672 err_out_disable_mbx_intr:
2673         if (qlcnic_83xx_check(adapter))
2674                 qlcnic_83xx_free_mbx_intr(adapter);
2675
2676 err_out_disable_msi:
2677         qlcnic_teardown_intr(adapter);
2678         qlcnic_cancel_idc_work(adapter);
2679         qlcnic_clr_all_drv_state(adapter, 0);
2680
2681 err_out_free_hw:
2682         qlcnic_free_adapter_resources(adapter);
2683
2684 err_out_free_wq:
2685         destroy_workqueue(adapter->qlcnic_wq);
2686
2687 err_out_free_netdev:
2688         free_netdev(netdev);
2689
2690 err_out_iounmap:
2691         qlcnic_cleanup_pci_map(ahw);
2692
2693 err_out_free_hw_res:
2694         kfree(ahw);
2695
2696 err_out_free_res:
2697         pci_release_regions(pdev);
2698
2699 err_out_disable_pdev:
2700         pci_disable_device(pdev);
2701         return err;
2702
2703 err_out_maintenance_mode:
2704         set_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state);
2705         netdev->netdev_ops = &qlcnic_netdev_failed_ops;
2706         netdev->ethtool_ops = &qlcnic_ethtool_failed_ops;
2707         ahw->port_type = QLCNIC_XGBE;
2708
2709         if (qlcnic_83xx_check(adapter))
2710                 adapter->tgt_status_reg = NULL;
2711         else
2712                 ahw->board_type = QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS;
2713
2714         err = register_netdev(netdev);
2715
2716         if (err) {
2717                 dev_err(&pdev->dev, "Failed to register net device\n");
2718                 qlcnic_clr_all_drv_state(adapter, 0);
2719                 goto err_out_free_hw;
2720         }
2721
2722         pci_set_drvdata(pdev, adapter);
2723         qlcnic_add_sysfs(adapter);
2724
2725         return 0;
2726 }
2727
2728 static void qlcnic_remove(struct pci_dev *pdev)
2729 {
2730         struct qlcnic_adapter *adapter;
2731         struct net_device *netdev;
2732         struct qlcnic_hardware_context *ahw;
2733
2734         adapter = pci_get_drvdata(pdev);
2735         if (adapter == NULL)
2736                 return;
2737
2738         netdev = adapter->netdev;
2739
2740         qlcnic_cancel_idc_work(adapter);
2741         qlcnic_sriov_pf_disable(adapter);
2742         ahw = adapter->ahw;
2743
2744         unregister_netdev(netdev);
2745         qlcnic_sriov_cleanup(adapter);
2746
2747         if (qlcnic_83xx_check(adapter)) {
2748                 qlcnic_83xx_initialize_nic(adapter, 0);
2749                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2750                 qlcnic_83xx_free_mbx_intr(adapter);
2751                 qlcnic_83xx_detach_mailbox_work(adapter);
2752                 qlcnic_83xx_free_mailbox(ahw->mailbox);
2753                 kfree(ahw->fw_info);
2754         }
2755
2756         qlcnic_dcb_free(adapter->dcb);
2757
2758         qlcnic_detach(adapter);
2759
2760         if (adapter->npars != NULL)
2761                 kfree(adapter->npars);
2762         if (adapter->eswitch != NULL)
2763                 kfree(adapter->eswitch);
2764
2765         if (qlcnic_82xx_check(adapter))
2766                 qlcnic_clr_all_drv_state(adapter, 0);
2767
2768         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2769
2770         qlcnic_free_lb_filters_mem(adapter);
2771
2772         qlcnic_teardown_intr(adapter);
2773
2774         qlcnic_remove_sysfs(adapter);
2775
2776         qlcnic_unregister_hwmon_dev(adapter);
2777
2778         qlcnic_cleanup_pci_map(adapter->ahw);
2779
2780         qlcnic_release_firmware(adapter);
2781
2782         pci_disable_pcie_error_reporting(pdev);
2783         pci_release_regions(pdev);
2784         pci_disable_device(pdev);
2785
2786         if (adapter->qlcnic_wq) {
2787                 destroy_workqueue(adapter->qlcnic_wq);
2788                 adapter->qlcnic_wq = NULL;
2789         }
2790
2791         qlcnic_free_adapter_resources(adapter);
2792         kfree(ahw);
2793         free_netdev(netdev);
2794 }
2795
2796 static void qlcnic_shutdown(struct pci_dev *pdev)
2797 {
2798         if (__qlcnic_shutdown(pdev))
2799                 return;
2800
2801         pci_disable_device(pdev);
2802 }
2803
2804 #ifdef CONFIG_PM
2805 static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2806 {
2807         int retval;
2808
2809         retval = __qlcnic_shutdown(pdev);
2810         if (retval)
2811                 return retval;
2812
2813         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2814         return 0;
2815 }
2816
2817 static int qlcnic_resume(struct pci_dev *pdev)
2818 {
2819         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2820         int err;
2821
2822         err = pci_enable_device(pdev);
2823         if (err)
2824                 return err;
2825
2826         pci_set_power_state(pdev, PCI_D0);
2827         pci_set_master(pdev);
2828         pci_restore_state(pdev);
2829
2830         return  __qlcnic_resume(adapter);
2831 }
2832 #endif
2833
2834 static int qlcnic_open(struct net_device *netdev)
2835 {
2836         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2837         int err;
2838
2839         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
2840                 netdev_err(netdev, "%s: Device is in non-operational state\n",
2841                            __func__);
2842
2843                 return -EIO;
2844         }
2845
2846         netif_carrier_off(netdev);
2847
2848         err = qlcnic_attach(adapter);
2849         if (err)
2850                 return err;
2851
2852         err = __qlcnic_up(adapter, netdev);
2853         if (err)
2854                 qlcnic_detach(adapter);
2855
2856         return err;
2857 }
2858
2859 /*
2860  * qlcnic_close - Disables a network interface entry point
2861  */
2862 static int qlcnic_close(struct net_device *netdev)
2863 {
2864         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2865
2866         __qlcnic_down(adapter, netdev);
2867
2868         return 0;
2869 }
2870
2871 #define QLCNIC_VF_LB_BUCKET_SIZE 1
2872
2873 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2874 {
2875         void *head;
2876         int i;
2877         struct net_device *netdev = adapter->netdev;
2878         u32 filter_size = 0;
2879         u16 act_pci_func = 0;
2880
2881         if (adapter->fhash.fmax && adapter->fhash.fhead)
2882                 return;
2883
2884         act_pci_func = adapter->ahw->total_nic_func;
2885         spin_lock_init(&adapter->mac_learn_lock);
2886         spin_lock_init(&adapter->rx_mac_learn_lock);
2887
2888         if (qlcnic_sriov_vf_check(adapter)) {
2889                 filter_size = QLCNIC_83XX_SRIOV_VF_MAX_MAC - 1;
2890                 adapter->fhash.fbucket_size = QLCNIC_VF_LB_BUCKET_SIZE;
2891         } else if (qlcnic_82xx_check(adapter)) {
2892                 filter_size = QLCNIC_LB_MAX_FILTERS;
2893                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2894         } else {
2895                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2896                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2897         }
2898
2899         head = kcalloc(adapter->fhash.fbucket_size,
2900                        sizeof(struct hlist_head), GFP_ATOMIC);
2901
2902         if (!head)
2903                 return;
2904
2905         adapter->fhash.fmax = (filter_size / act_pci_func);
2906         adapter->fhash.fhead = head;
2907
2908         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2909                     act_pci_func, adapter->fhash.fmax);
2910
2911         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2912                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2913
2914         adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2915
2916         head = kcalloc(adapter->rx_fhash.fbucket_size,
2917                        sizeof(struct hlist_head), GFP_ATOMIC);
2918
2919         if (!head)
2920                 return;
2921
2922         adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2923         adapter->rx_fhash.fhead = head;
2924
2925         for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2926                 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2927 }
2928
2929 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2930 {
2931         if (adapter->fhash.fmax && adapter->fhash.fhead)
2932                 kfree(adapter->fhash.fhead);
2933
2934         adapter->fhash.fhead = NULL;
2935         adapter->fhash.fmax = 0;
2936
2937         if (adapter->rx_fhash.fmax && adapter->rx_fhash.fhead)
2938                 kfree(adapter->rx_fhash.fhead);
2939
2940         adapter->rx_fhash.fmax = 0;
2941         adapter->rx_fhash.fhead = NULL;
2942 }
2943
2944 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2945 {
2946         struct net_device *netdev = adapter->netdev;
2947         u32 temp_state, temp_val, temp = 0;
2948         int rv = 0;
2949
2950         if (qlcnic_83xx_check(adapter))
2951                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2952
2953         if (qlcnic_82xx_check(adapter))
2954                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2955
2956         temp_state = qlcnic_get_temp_state(temp);
2957         temp_val = qlcnic_get_temp_val(temp);
2958
2959         if (temp_state == QLCNIC_TEMP_PANIC) {
2960                 dev_err(&netdev->dev,
2961                        "Device temperature %d degrees C exceeds"
2962                        " maximum allowed. Hardware has been shut down.\n",
2963                        temp_val);
2964                 rv = 1;
2965         } else if (temp_state == QLCNIC_TEMP_WARN) {
2966                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2967                         dev_err(&netdev->dev,
2968                                "Device temperature %d degrees C "
2969                                "exceeds operating range."
2970                                " Immediate action needed.\n",
2971                                temp_val);
2972                 }
2973         } else {
2974                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2975                         dev_info(&netdev->dev,
2976                                "Device temperature is now %d degrees C"
2977                                " in normal range.\n", temp_val);
2978                 }
2979         }
2980         adapter->ahw->temp = temp_state;
2981         return rv;
2982 }
2983
2984 static inline void dump_tx_ring_desc(struct qlcnic_host_tx_ring *tx_ring)
2985 {
2986         int i;
2987         struct cmd_desc_type0 *tx_desc_info;
2988
2989         for (i = 0; i < tx_ring->num_desc; i++) {
2990                 tx_desc_info = &tx_ring->desc_head[i];
2991                 pr_info("TX Desc: %d\n", i);
2992                 print_hex_dump(KERN_INFO, "TX: ", DUMP_PREFIX_OFFSET, 16, 1,
2993                                &tx_ring->desc_head[i],
2994                                sizeof(struct cmd_desc_type0), true);
2995         }
2996 }
2997
2998 static void qlcnic_dump_rings(struct qlcnic_adapter *adapter)
2999 {
3000         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
3001         struct net_device *netdev = adapter->netdev;
3002         struct qlcnic_host_rds_ring *rds_ring;
3003         struct qlcnic_host_sds_ring *sds_ring;
3004         struct qlcnic_host_tx_ring *tx_ring;
3005         int ring;
3006
3007         if (!netdev || !netif_running(netdev))
3008                 return;
3009
3010         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
3011                 rds_ring = &recv_ctx->rds_rings[ring];
3012                 if (!rds_ring)
3013                         continue;
3014                 netdev_info(netdev,
3015                             "rds_ring=%d crb_rcv_producer=%d producer=%u num_desc=%u\n",
3016                              ring, readl(rds_ring->crb_rcv_producer),
3017                              rds_ring->producer, rds_ring->num_desc);
3018         }
3019
3020         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3021                 sds_ring = &(recv_ctx->sds_rings[ring]);
3022                 if (!sds_ring)
3023                         continue;
3024                 netdev_info(netdev,
3025                             "sds_ring=%d crb_sts_consumer=%d consumer=%u crb_intr_mask=%d num_desc=%u\n",
3026                             ring, readl(sds_ring->crb_sts_consumer),
3027                             sds_ring->consumer, readl(sds_ring->crb_intr_mask),
3028                             sds_ring->num_desc);
3029         }
3030
3031         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3032                 tx_ring = &adapter->tx_ring[ring];
3033                 if (!tx_ring)
3034                         continue;
3035                 netdev_info(netdev, "Tx ring=%d Context Id=0x%x\n",
3036                             ring, tx_ring->ctx_id);
3037                 netdev_info(netdev,
3038                             "xmit_finished=%llu, xmit_called=%llu, xmit_on=%llu, xmit_off=%llu\n",
3039                             tx_ring->tx_stats.xmit_finished,
3040                             tx_ring->tx_stats.xmit_called,
3041                             tx_ring->tx_stats.xmit_on,
3042                             tx_ring->tx_stats.xmit_off);
3043
3044                 if (tx_ring->crb_intr_mask)
3045                         netdev_info(netdev, "crb_intr_mask=%d\n",
3046                                     readl(tx_ring->crb_intr_mask));
3047
3048                 netdev_info(netdev,
3049                             "hw_producer=%d, sw_producer=%d sw_consumer=%d, hw_consumer=%d\n",
3050                             readl(tx_ring->crb_cmd_producer),
3051                             tx_ring->producer, tx_ring->sw_consumer,
3052                             le32_to_cpu(*(tx_ring->hw_consumer)));
3053
3054                 netdev_info(netdev, "Total desc=%d, Available desc=%d\n",
3055                             tx_ring->num_desc, qlcnic_tx_avail(tx_ring));
3056
3057                 if (netif_msg_tx_err(adapter->ahw))
3058                         dump_tx_ring_desc(tx_ring);
3059         }
3060
3061 }
3062
3063 static void qlcnic_tx_timeout(struct net_device *netdev)
3064 {
3065         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3066
3067         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3068                 return;
3069
3070         qlcnic_dump_rings(adapter);
3071
3072         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS ||
3073             netif_msg_tx_err(adapter->ahw)) {
3074                 netdev_err(netdev, "Tx timeout, reset the adapter.\n");
3075                 if (qlcnic_82xx_check(adapter))
3076                         adapter->need_fw_reset = 1;
3077                 else if (qlcnic_83xx_check(adapter))
3078                         qlcnic_83xx_idc_request_reset(adapter,
3079                                                       QLCNIC_FORCE_FW_DUMP_KEY);
3080         } else {
3081                 netdev_err(netdev, "Tx timeout, reset adapter context.\n");
3082                 adapter->ahw->reset_context = 1;
3083         }
3084 }
3085
3086 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
3087 {
3088         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3089         struct net_device_stats *stats = &netdev->stats;
3090
3091         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
3092                 qlcnic_update_stats(adapter);
3093
3094         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
3095         stats->tx_packets = adapter->stats.xmitfinished;
3096         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
3097         stats->tx_bytes = adapter->stats.txbytes;
3098         stats->rx_dropped = adapter->stats.rxdropped;
3099         stats->tx_dropped = adapter->stats.txdropped;
3100
3101         return stats;
3102 }
3103
3104 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
3105 {
3106         u32 status;
3107
3108         status = readl(adapter->isr_int_vec);
3109
3110         if (!(status & adapter->ahw->int_vec_bit))
3111                 return IRQ_NONE;
3112
3113         /* check interrupt state machine, to be sure */
3114         status = readl(adapter->crb_int_state_reg);
3115         if (!ISR_LEGACY_INT_TRIGGERED(status))
3116                 return IRQ_NONE;
3117
3118         writel(0xffffffff, adapter->tgt_status_reg);
3119         /* read twice to ensure write is flushed */
3120         readl(adapter->isr_int_vec);
3121         readl(adapter->isr_int_vec);
3122
3123         return IRQ_HANDLED;
3124 }
3125
3126 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
3127 {
3128         struct qlcnic_host_sds_ring *sds_ring = data;
3129         struct qlcnic_adapter *adapter = sds_ring->adapter;
3130
3131         if (adapter->flags & QLCNIC_MSIX_ENABLED)
3132                 goto done;
3133         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
3134                 writel(0xffffffff, adapter->tgt_status_reg);
3135                 goto done;
3136         }
3137
3138         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3139                 return IRQ_NONE;
3140
3141 done:
3142         adapter->ahw->diag_cnt++;
3143         qlcnic_enable_sds_intr(adapter, sds_ring);
3144         return IRQ_HANDLED;
3145 }
3146
3147 static irqreturn_t qlcnic_intr(int irq, void *data)
3148 {
3149         struct qlcnic_host_sds_ring *sds_ring = data;
3150         struct qlcnic_adapter *adapter = sds_ring->adapter;
3151
3152         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3153                 return IRQ_NONE;
3154
3155         napi_schedule(&sds_ring->napi);
3156
3157         return IRQ_HANDLED;
3158 }
3159
3160 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
3161 {
3162         struct qlcnic_host_sds_ring *sds_ring = data;
3163         struct qlcnic_adapter *adapter = sds_ring->adapter;
3164
3165         /* clear interrupt */
3166         writel(0xffffffff, adapter->tgt_status_reg);
3167
3168         napi_schedule(&sds_ring->napi);
3169         return IRQ_HANDLED;
3170 }
3171
3172 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
3173 {
3174         struct qlcnic_host_sds_ring *sds_ring = data;
3175
3176         napi_schedule(&sds_ring->napi);
3177         return IRQ_HANDLED;
3178 }
3179
3180 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
3181 {
3182         struct qlcnic_host_tx_ring *tx_ring = data;
3183
3184         napi_schedule(&tx_ring->napi);
3185         return IRQ_HANDLED;
3186 }
3187
3188 #ifdef CONFIG_NET_POLL_CONTROLLER
3189 static void qlcnic_poll_controller(struct net_device *netdev)
3190 {
3191         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3192         struct qlcnic_host_sds_ring *sds_ring;
3193         struct qlcnic_recv_context *recv_ctx;
3194         struct qlcnic_host_tx_ring *tx_ring;
3195         int ring;
3196
3197         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3198                 return;
3199
3200         recv_ctx = adapter->recv_ctx;
3201
3202         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3203                 sds_ring = &recv_ctx->sds_rings[ring];
3204                 qlcnic_disable_sds_intr(adapter, sds_ring);
3205                 napi_schedule(&sds_ring->napi);
3206         }
3207
3208         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
3209                 /* Only Multi-Tx queue capable devices need to
3210                  * schedule NAPI for TX rings
3211                  */
3212                 if ((qlcnic_83xx_check(adapter) &&
3213                      (adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
3214                     (qlcnic_82xx_check(adapter) &&
3215                      !qlcnic_check_multi_tx(adapter)))
3216                         return;
3217
3218                 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3219                         tx_ring = &adapter->tx_ring[ring];
3220                         qlcnic_disable_tx_intr(adapter, tx_ring);
3221                         napi_schedule(&tx_ring->napi);
3222                 }
3223         }
3224 }
3225 #endif
3226
3227 static void
3228 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
3229 {
3230         u32 val;
3231
3232         val = adapter->portnum & 0xf;
3233         val |= encoding << 7;
3234         val |= (jiffies - adapter->dev_rst_time) << 8;
3235
3236         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
3237         adapter->dev_rst_time = jiffies;
3238 }
3239
3240 static int
3241 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
3242 {
3243         u32  val;
3244
3245         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
3246                         state != QLCNIC_DEV_NEED_QUISCENT);
3247
3248         if (qlcnic_api_lock(adapter))
3249                 return -EIO;
3250
3251         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3252
3253         if (state == QLCNIC_DEV_NEED_RESET)
3254                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3255         else if (state == QLCNIC_DEV_NEED_QUISCENT)
3256                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
3257
3258         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3259
3260         qlcnic_api_unlock(adapter);
3261
3262         return 0;
3263 }
3264
3265 static int
3266 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
3267 {
3268         u32  val;
3269
3270         if (qlcnic_api_lock(adapter))
3271                 return -EBUSY;
3272
3273         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3274         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3275         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3276
3277         qlcnic_api_unlock(adapter);
3278
3279         return 0;
3280 }
3281
3282 void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
3283 {
3284         u32  val;
3285
3286         if (qlcnic_api_lock(adapter))
3287                 goto err;
3288
3289         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3290         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
3291         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3292
3293         if (failed) {
3294                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3295                                     QLCNIC_DEV_FAILED);
3296                 dev_info(&adapter->pdev->dev,
3297                                 "Device state set to Failed. Please Reboot\n");
3298         } else if (!(val & 0x11111111))
3299                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3300                                     QLCNIC_DEV_COLD);
3301
3302         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3303         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3304         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3305
3306         qlcnic_api_unlock(adapter);
3307 err:
3308         adapter->fw_fail_cnt = 0;
3309         adapter->flags &= ~QLCNIC_FW_HANG;
3310         clear_bit(__QLCNIC_START_FW, &adapter->state);
3311         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3312 }
3313
3314 /* Grab api lock, before checking state */
3315 static int
3316 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
3317 {
3318         int act, state, active_mask;
3319         struct qlcnic_hardware_context *ahw = adapter->ahw;
3320
3321         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3322         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3323
3324         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
3325                 active_mask = (~(1 << (ahw->pci_func * 4)));
3326                 act = act & active_mask;
3327         }
3328
3329         if (((state & 0x11111111) == (act & 0x11111111)) ||
3330                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
3331                 return 0;
3332         else
3333                 return 1;
3334 }
3335
3336 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
3337 {
3338         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
3339
3340         if (val != QLCNIC_DRV_IDC_VER) {
3341                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
3342                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
3343         }
3344
3345         return 0;
3346 }
3347
3348 static int
3349 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
3350 {
3351         u32 val, prev_state;
3352         u8 dev_init_timeo = adapter->dev_init_timeo;
3353         u8 portnum = adapter->portnum;
3354         u8 ret;
3355
3356         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
3357                 return 1;
3358
3359         if (qlcnic_api_lock(adapter))
3360                 return -1;
3361
3362         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3363         if (!(val & (1 << (portnum * 4)))) {
3364                 QLC_DEV_SET_REF_CNT(val, portnum);
3365                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3366         }
3367
3368         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3369         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
3370
3371         switch (prev_state) {
3372         case QLCNIC_DEV_COLD:
3373                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3374                                     QLCNIC_DEV_INITIALIZING);
3375                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
3376                                     QLCNIC_DRV_IDC_VER);
3377                 qlcnic_idc_debug_info(adapter, 0);
3378                 qlcnic_api_unlock(adapter);
3379                 return 1;
3380
3381         case QLCNIC_DEV_READY:
3382                 ret = qlcnic_check_idc_ver(adapter);
3383                 qlcnic_api_unlock(adapter);
3384                 return ret;
3385
3386         case QLCNIC_DEV_NEED_RESET:
3387                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3388                 QLC_DEV_SET_RST_RDY(val, portnum);
3389                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3390                 break;
3391
3392         case QLCNIC_DEV_NEED_QUISCENT:
3393                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3394                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
3395                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3396                 break;
3397
3398         case QLCNIC_DEV_FAILED:
3399                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
3400                 qlcnic_api_unlock(adapter);
3401                 return -1;
3402
3403         case QLCNIC_DEV_INITIALIZING:
3404         case QLCNIC_DEV_QUISCENT:
3405                 break;
3406         }
3407
3408         qlcnic_api_unlock(adapter);
3409
3410         do {
3411                 msleep(1000);
3412                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3413
3414                 if (prev_state == QLCNIC_DEV_QUISCENT)
3415                         continue;
3416         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
3417
3418         if (!dev_init_timeo) {
3419                 dev_err(&adapter->pdev->dev,
3420                         "Waiting for device to initialize timeout\n");
3421                 return -1;
3422         }
3423
3424         if (qlcnic_api_lock(adapter))
3425                 return -1;
3426
3427         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3428         QLC_DEV_CLR_RST_QSCNT(val, portnum);
3429         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3430
3431         ret = qlcnic_check_idc_ver(adapter);
3432         qlcnic_api_unlock(adapter);
3433
3434         return ret;
3435 }
3436
3437 static void
3438 qlcnic_fwinit_work(struct work_struct *work)
3439 {
3440         struct qlcnic_adapter *adapter = container_of(work,
3441                         struct qlcnic_adapter, fw_work.work);
3442         u32 dev_state = 0xf;
3443         u32 val;
3444
3445         if (qlcnic_api_lock(adapter))
3446                 goto err_ret;
3447
3448         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3449         if (dev_state == QLCNIC_DEV_QUISCENT ||
3450             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3451                 qlcnic_api_unlock(adapter);
3452                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
3453                                                 FW_POLL_DELAY * 2);
3454                 return;
3455         }
3456
3457         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
3458                 qlcnic_api_unlock(adapter);
3459                 goto wait_npar;
3460         }
3461
3462         if (dev_state == QLCNIC_DEV_INITIALIZING ||
3463             dev_state == QLCNIC_DEV_READY) {
3464                 dev_info(&adapter->pdev->dev, "Detected state change from "
3465                                 "DEV_NEED_RESET, skipping ack check\n");
3466                 goto skip_ack_check;
3467         }
3468
3469         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
3470                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
3471                                         adapter->reset_ack_timeo);
3472                 goto skip_ack_check;
3473         }
3474
3475         if (!qlcnic_check_drv_state(adapter)) {
3476 skip_ack_check:
3477                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3478
3479                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
3480                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3481                                             QLCNIC_DEV_INITIALIZING);
3482                         set_bit(__QLCNIC_START_FW, &adapter->state);
3483                         QLCDB(adapter, DRV, "Restarting fw\n");
3484                         qlcnic_idc_debug_info(adapter, 0);
3485                         val = QLC_SHARED_REG_RD32(adapter,
3486                                                   QLCNIC_CRB_DRV_STATE);
3487                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3488                         QLC_SHARED_REG_WR32(adapter,
3489                                             QLCNIC_CRB_DRV_STATE, val);
3490                 }
3491
3492                 qlcnic_api_unlock(adapter);
3493
3494                 rtnl_lock();
3495                 if (qlcnic_check_fw_dump_state(adapter) &&
3496                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3497                         QLCDB(adapter, DRV, "Take FW dump\n");
3498                         qlcnic_dump_fw(adapter);
3499                         adapter->flags |= QLCNIC_FW_HANG;
3500                 }
3501                 rtnl_unlock();
3502
3503                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
3504                 if (!adapter->nic_ops->start_firmware(adapter)) {
3505                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3506                         adapter->fw_wait_cnt = 0;
3507                         return;
3508                 }
3509                 goto err_ret;
3510         }
3511
3512         qlcnic_api_unlock(adapter);
3513
3514 wait_npar:
3515         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3516         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
3517
3518         switch (dev_state) {
3519         case QLCNIC_DEV_READY:
3520                 if (!qlcnic_start_firmware(adapter)) {
3521                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3522                         adapter->fw_wait_cnt = 0;
3523                         return;
3524                 }
3525         case QLCNIC_DEV_FAILED:
3526                 break;
3527         default:
3528                 qlcnic_schedule_work(adapter,
3529                         qlcnic_fwinit_work, FW_POLL_DELAY);
3530                 return;
3531         }
3532
3533 err_ret:
3534         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
3535                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
3536         netif_device_attach(adapter->netdev);
3537         qlcnic_clr_all_drv_state(adapter, 0);
3538 }
3539
3540 static void
3541 qlcnic_detach_work(struct work_struct *work)
3542 {
3543         struct qlcnic_adapter *adapter = container_of(work,
3544                         struct qlcnic_adapter, fw_work.work);
3545         struct net_device *netdev = adapter->netdev;
3546         u32 status;
3547
3548         netif_device_detach(netdev);
3549
3550         /* Dont grab rtnl lock during Quiscent mode */
3551         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3552                 if (netif_running(netdev))
3553                         __qlcnic_down(adapter, netdev);
3554         } else
3555                 qlcnic_down(adapter, netdev);
3556
3557         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3558
3559         if (status & QLCNIC_RCODE_FATAL_ERROR) {
3560                 dev_err(&adapter->pdev->dev,
3561                         "Detaching the device: peg halt status1=0x%x\n",
3562                                         status);
3563
3564                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
3565                         dev_err(&adapter->pdev->dev,
3566                         "On board active cooling fan failed. "
3567                                 "Device has been halted.\n");
3568                         dev_err(&adapter->pdev->dev,
3569                                 "Replace the adapter.\n");
3570                 }
3571
3572                 goto err_ret;
3573         }
3574
3575         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
3576                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
3577                         adapter->ahw->temp);
3578                 goto err_ret;
3579         }
3580
3581         /* Dont ack if this instance is the reset owner */
3582         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3583                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
3584                         dev_err(&adapter->pdev->dev,
3585                                 "Failed to set driver state,"
3586                                         "detaching the device.\n");
3587                         goto err_ret;
3588                 }
3589         }
3590
3591         adapter->fw_wait_cnt = 0;
3592
3593         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3594
3595         return;
3596
3597 err_ret:
3598         netif_device_attach(netdev);
3599         qlcnic_clr_all_drv_state(adapter, 1);
3600 }
3601
3602 /*Transit NPAR state to NON Operational */
3603 static void
3604 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3605 {
3606         u32 state;
3607
3608         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3609         if (state == QLCNIC_DEV_NPAR_NON_OPER)
3610                 return;
3611
3612         if (qlcnic_api_lock(adapter))
3613                 return;
3614         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3615                             QLCNIC_DEV_NPAR_NON_OPER);
3616         qlcnic_api_unlock(adapter);
3617 }
3618
3619 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter,
3620                                           u32 key)
3621 {
3622         u32 state, xg_val = 0, gb_val = 0;
3623
3624         qlcnic_xg_set_xg0_mask(xg_val);
3625         qlcnic_xg_set_xg1_mask(xg_val);
3626         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3627         qlcnic_gb_set_gb0_mask(gb_val);
3628         qlcnic_gb_set_gb1_mask(gb_val);
3629         qlcnic_gb_set_gb2_mask(gb_val);
3630         qlcnic_gb_set_gb3_mask(gb_val);
3631         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3632         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3633                                 " on all ports\n");
3634         adapter->need_fw_reset = 1;
3635
3636         if (qlcnic_api_lock(adapter))
3637                 return;
3638
3639         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3640
3641         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
3642                 netdev_err(adapter->netdev, "%s: Device is in non-operational state\n",
3643                            __func__);
3644                 qlcnic_api_unlock(adapter);
3645
3646                 return;
3647         }
3648
3649         if (state == QLCNIC_DEV_READY) {
3650                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3651                                     QLCNIC_DEV_NEED_RESET);
3652                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3653                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3654                 qlcnic_idc_debug_info(adapter, 0);
3655         }
3656
3657         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3658                             QLCNIC_DEV_NPAR_NON_OPER);
3659         qlcnic_api_unlock(adapter);
3660 }
3661
3662 /* Transit to NPAR READY state from NPAR NOT READY state */
3663 static void
3664 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3665 {
3666         if (qlcnic_api_lock(adapter))
3667                 return;
3668
3669         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3670                             QLCNIC_DEV_NPAR_OPER);
3671         QLCDB(adapter, DRV, "NPAR operational state set\n");
3672
3673         qlcnic_api_unlock(adapter);
3674 }
3675
3676 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3677                           work_func_t func, int delay)
3678 {
3679         if (test_bit(__QLCNIC_AER, &adapter->state))
3680                 return;
3681
3682         INIT_DELAYED_WORK(&adapter->fw_work, func);
3683         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3684                            round_jiffies_relative(delay));
3685 }
3686
3687 static void
3688 qlcnic_attach_work(struct work_struct *work)
3689 {
3690         struct qlcnic_adapter *adapter = container_of(work,
3691                                 struct qlcnic_adapter, fw_work.work);
3692         struct net_device *netdev = adapter->netdev;
3693         u32 npar_state;
3694
3695         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3696                 npar_state = QLC_SHARED_REG_RD32(adapter,
3697                                                  QLCNIC_CRB_DEV_NPAR_STATE);
3698                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3699                         qlcnic_clr_all_drv_state(adapter, 0);
3700                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3701                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
3702                                                         FW_POLL_DELAY);
3703                 else
3704                         goto attach;
3705                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3706                 return;
3707         }
3708 attach:
3709         qlcnic_dcb_get_info(adapter->dcb);
3710
3711         if (netif_running(netdev)) {
3712                 if (qlcnic_up(adapter, netdev))
3713                         goto done;
3714
3715                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3716         }
3717
3718 done:
3719         netif_device_attach(netdev);
3720         adapter->fw_fail_cnt = 0;
3721         adapter->flags &= ~QLCNIC_FW_HANG;
3722         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3723         if (adapter->portnum == 0)
3724                 qlcnic_set_drv_version(adapter);
3725
3726         if (!qlcnic_clr_drv_state(adapter))
3727                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3728                                                         FW_POLL_DELAY);
3729 }
3730
3731 static int
3732 qlcnic_check_health(struct qlcnic_adapter *adapter)
3733 {
3734         struct qlcnic_hardware_context *ahw = adapter->ahw;
3735         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
3736         u32 state = 0, heartbeat;
3737         u32 peg_status;
3738         int err = 0;
3739
3740         if (qlcnic_check_temp(adapter))
3741                 goto detach;
3742
3743         if (adapter->need_fw_reset)
3744                 qlcnic_dev_request_reset(adapter, 0);
3745
3746         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3747         if (state == QLCNIC_DEV_NEED_RESET) {
3748                 qlcnic_set_npar_non_operational(adapter);
3749                 adapter->need_fw_reset = 1;
3750         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3751                 goto detach;
3752
3753         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3754         if (heartbeat != adapter->heartbeat) {
3755                 adapter->heartbeat = heartbeat;
3756                 adapter->fw_fail_cnt = 0;
3757                 if (adapter->need_fw_reset)
3758                         goto detach;
3759
3760                 if (ahw->reset_context && qlcnic_auto_fw_reset)
3761                         qlcnic_reset_hw_context(adapter);
3762
3763                 return 0;
3764         }
3765
3766         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3767                 return 0;
3768
3769         adapter->flags |= QLCNIC_FW_HANG;
3770
3771         qlcnic_dev_request_reset(adapter, 0);
3772
3773         if (qlcnic_auto_fw_reset)
3774                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3775
3776         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3777         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3778         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3779                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3780                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3781                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3782                         "PEG_NET_4_PC: 0x%x\n",
3783                         peg_status,
3784                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3785                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3786                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3787                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3788                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3789                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3790         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3791                 dev_err(&adapter->pdev->dev,
3792                         "Firmware aborted with error code 0x00006700. "
3793                                 "Device is being reset.\n");
3794 detach:
3795         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3796                 QLCNIC_DEV_NEED_RESET;
3797
3798         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3799                                                       &adapter->state)) {
3800
3801                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3802                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3803         } else if (!qlcnic_auto_fw_reset && fw_dump->enable &&
3804                    adapter->flags & QLCNIC_FW_RESET_OWNER) {
3805                 qlcnic_dump_fw(adapter);
3806         }
3807
3808         return 1;
3809 }
3810
3811 void qlcnic_fw_poll_work(struct work_struct *work)
3812 {
3813         struct qlcnic_adapter *adapter = container_of(work,
3814                                 struct qlcnic_adapter, fw_work.work);
3815
3816         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3817                 goto reschedule;
3818
3819
3820         if (qlcnic_check_health(adapter))
3821                 return;
3822
3823         if (adapter->fhash.fnum)
3824                 qlcnic_prune_lb_filters(adapter);
3825
3826 reschedule:
3827         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3828 }
3829
3830 static int qlcnic_is_first_func(struct pci_dev *pdev)
3831 {
3832         struct pci_dev *oth_pdev;
3833         int val = pdev->devfn;
3834
3835         while (val-- > 0) {
3836                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3837                         (pdev->bus), pdev->bus->number,
3838                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3839                 if (!oth_pdev)
3840                         continue;
3841
3842                 if (oth_pdev->current_state != PCI_D3cold) {
3843                         pci_dev_put(oth_pdev);
3844                         return 0;
3845                 }
3846                 pci_dev_put(oth_pdev);
3847         }
3848         return 1;
3849 }
3850
3851 static int qlcnic_attach_func(struct pci_dev *pdev)
3852 {
3853         int err, first_func;
3854         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3855         struct net_device *netdev = adapter->netdev;
3856
3857         pdev->error_state = pci_channel_io_normal;
3858
3859         err = pci_enable_device(pdev);
3860         if (err)
3861                 return err;
3862
3863         pci_set_master(pdev);
3864         pci_restore_state(pdev);
3865
3866         first_func = qlcnic_is_first_func(pdev);
3867
3868         if (qlcnic_api_lock(adapter))
3869                 return -EINVAL;
3870
3871         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3872                 adapter->need_fw_reset = 1;
3873                 set_bit(__QLCNIC_START_FW, &adapter->state);
3874                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3875                                     QLCNIC_DEV_INITIALIZING);
3876                 QLCDB(adapter, DRV, "Restarting fw\n");
3877         }
3878         qlcnic_api_unlock(adapter);
3879
3880         err = qlcnic_start_firmware(adapter);
3881         if (err)
3882                 return err;
3883
3884         qlcnic_clr_drv_state(adapter);
3885         kfree(adapter->msix_entries);
3886         adapter->msix_entries = NULL;
3887         err = qlcnic_setup_intr(adapter);
3888
3889         if (err) {
3890                 kfree(adapter->msix_entries);
3891                 netdev_err(netdev, "failed to setup interrupt\n");
3892                 return err;
3893         }
3894
3895         if (netif_running(netdev)) {
3896                 err = qlcnic_attach(adapter);
3897                 if (err) {
3898                         qlcnic_clr_all_drv_state(adapter, 1);
3899                         clear_bit(__QLCNIC_AER, &adapter->state);
3900                         netif_device_attach(netdev);
3901                         return err;
3902                 }
3903
3904                 err = qlcnic_up(adapter, netdev);
3905                 if (err)
3906                         goto done;
3907
3908                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3909         }
3910  done:
3911         netif_device_attach(netdev);
3912         return err;
3913 }
3914
3915 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
3916                                                       pci_channel_state_t state)
3917 {
3918         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3919         struct net_device *netdev = adapter->netdev;
3920
3921         if (state == pci_channel_io_perm_failure)
3922                 return PCI_ERS_RESULT_DISCONNECT;
3923
3924         if (state == pci_channel_io_normal)
3925                 return PCI_ERS_RESULT_RECOVERED;
3926
3927         set_bit(__QLCNIC_AER, &adapter->state);
3928         netif_device_detach(netdev);
3929
3930         cancel_delayed_work_sync(&adapter->fw_work);
3931
3932         if (netif_running(netdev))
3933                 qlcnic_down(adapter, netdev);
3934
3935         qlcnic_detach(adapter);
3936         qlcnic_teardown_intr(adapter);
3937
3938         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3939
3940         pci_save_state(pdev);
3941         pci_disable_device(pdev);
3942
3943         return PCI_ERS_RESULT_NEED_RESET;
3944 }
3945
3946 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
3947 {
3948         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3949                                 PCI_ERS_RESULT_RECOVERED;
3950 }
3951
3952 static void qlcnic_82xx_io_resume(struct pci_dev *pdev)
3953 {
3954         u32 state;
3955         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3956
3957         pci_cleanup_aer_uncorrect_error_status(pdev);
3958         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3959         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3960                                                             &adapter->state))
3961                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3962                                      FW_POLL_DELAY);
3963 }
3964
3965 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3966                                                  pci_channel_state_t state)
3967 {
3968         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3969         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3970
3971         if (hw_ops->io_error_detected) {
3972                 return hw_ops->io_error_detected(pdev, state);
3973         } else {
3974                 dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
3975                 return PCI_ERS_RESULT_DISCONNECT;
3976         }
3977 }
3978
3979 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3980 {
3981         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3982         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3983
3984         if (hw_ops->io_slot_reset) {
3985                 return hw_ops->io_slot_reset(pdev);
3986         } else {
3987                 dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
3988                 return PCI_ERS_RESULT_DISCONNECT;
3989         }
3990 }
3991
3992 static void qlcnic_io_resume(struct pci_dev *pdev)
3993 {
3994         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3995         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3996
3997         if (hw_ops->io_resume)
3998                 hw_ops->io_resume(pdev);
3999         else
4000                 dev_err(&pdev->dev, "AER resume handler not registered.\n");
4001 }
4002
4003
4004 static int
4005 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
4006 {
4007         int err;
4008
4009         err = qlcnic_can_start_firmware(adapter);
4010         if (err)
4011                 return err;
4012
4013         err = qlcnic_check_npar_opertional(adapter);
4014         if (err)
4015                 return err;
4016
4017         err = qlcnic_initialize_nic(adapter);
4018         if (err)
4019                 return err;
4020
4021         qlcnic_check_options(adapter);
4022
4023         err = qlcnic_set_eswitch_port_config(adapter);
4024         if (err)
4025                 return err;
4026
4027         adapter->need_fw_reset = 0;
4028
4029         return err;
4030 }
4031
4032 int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt,
4033                           int queue_type)
4034 {
4035         struct net_device *netdev = adapter->netdev;
4036         u8 max_hw_rings = 0;
4037         char buf[8];
4038         int cur_rings;
4039
4040         if (queue_type == QLCNIC_RX_QUEUE) {
4041                 max_hw_rings = adapter->max_sds_rings;
4042                 cur_rings = adapter->drv_sds_rings;
4043                 strcpy(buf, "SDS");
4044         } else if (queue_type == QLCNIC_TX_QUEUE) {
4045                 max_hw_rings = adapter->max_tx_rings;
4046                 cur_rings = adapter->drv_tx_rings;
4047                 strcpy(buf, "Tx");
4048         }
4049
4050         if (!is_power_of_2(ring_cnt)) {
4051                 netdev_err(netdev, "%s rings value should be a power of 2\n",
4052                            buf);
4053                 return -EINVAL;
4054         }
4055
4056         if (qlcnic_82xx_check(adapter) && (queue_type == QLCNIC_TX_QUEUE) &&
4057             !qlcnic_check_multi_tx(adapter)) {
4058                         netdev_err(netdev, "No Multi Tx queue support\n");
4059                         return -EINVAL;
4060         }
4061
4062         if (ring_cnt > num_online_cpus()) {
4063                 netdev_err(netdev,
4064                            "%s value[%u] should not be higher than, number of online CPUs\n",
4065                            buf, num_online_cpus());
4066                 return -EINVAL;
4067         }
4068
4069         return 0;
4070 }
4071
4072 int qlcnic_setup_rings(struct qlcnic_adapter *adapter)
4073 {
4074         struct net_device *netdev = adapter->netdev;
4075         u8 tx_rings, rx_rings;
4076         int err;
4077
4078         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
4079                 return -EBUSY;
4080
4081         tx_rings = adapter->drv_tss_rings;
4082         rx_rings = adapter->drv_rss_rings;
4083
4084         netif_device_detach(netdev);
4085
4086         err = qlcnic_set_real_num_queues(adapter, tx_rings, rx_rings);
4087         if (err)
4088                 goto done;
4089
4090         if (netif_running(netdev))
4091                 __qlcnic_down(adapter, netdev);
4092
4093         qlcnic_detach(adapter);
4094
4095         if (qlcnic_83xx_check(adapter)) {
4096                 qlcnic_83xx_free_mbx_intr(adapter);
4097                 qlcnic_83xx_enable_mbx_poll(adapter);
4098         }
4099
4100         qlcnic_teardown_intr(adapter);
4101
4102         err = qlcnic_setup_intr(adapter);
4103         if (err) {
4104                 kfree(adapter->msix_entries);
4105                 netdev_err(netdev, "failed to setup interrupt\n");
4106                 return err;
4107         }
4108
4109         /* Check if we need to update real_num_{tx|rx}_queues because
4110          * qlcnic_setup_intr() may change Tx/Rx rings size
4111          */
4112         if ((tx_rings != adapter->drv_tx_rings) ||
4113             (rx_rings != adapter->drv_sds_rings)) {
4114                 err = qlcnic_set_real_num_queues(adapter,
4115                                                  adapter->drv_tx_rings,
4116                                                  adapter->drv_sds_rings);
4117                 if (err)
4118                         goto done;
4119         }
4120
4121         if (qlcnic_83xx_check(adapter)) {
4122                 qlcnic_83xx_initialize_nic(adapter, 1);
4123                 err = qlcnic_83xx_setup_mbx_intr(adapter);
4124                 qlcnic_83xx_disable_mbx_poll(adapter);
4125                 if (err) {
4126                         dev_err(&adapter->pdev->dev,
4127                                 "failed to setup mbx interrupt\n");
4128                         goto done;
4129                 }
4130         }
4131
4132         if (netif_running(netdev)) {
4133                 err = qlcnic_attach(adapter);
4134                 if (err)
4135                         goto done;
4136                 err = __qlcnic_up(adapter, netdev);
4137                 if (err)
4138                         goto done;
4139                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
4140         }
4141 done:
4142         netif_device_attach(netdev);
4143         clear_bit(__QLCNIC_RESETTING, &adapter->state);
4144         return err;
4145 }
4146
4147 #ifdef CONFIG_INET
4148
4149 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4150
4151 static void
4152 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4153                         struct net_device *dev, unsigned long event)
4154 {
4155         struct in_device *indev;
4156
4157         indev = in_dev_get(dev);
4158         if (!indev)
4159                 return;
4160
4161         for_ifa(indev) {
4162                 switch (event) {
4163                 case NETDEV_UP:
4164                         qlcnic_config_ipaddr(adapter,
4165                                         ifa->ifa_address, QLCNIC_IP_UP);
4166                         break;
4167                 case NETDEV_DOWN:
4168                         qlcnic_config_ipaddr(adapter,
4169                                         ifa->ifa_address, QLCNIC_IP_DOWN);
4170                         break;
4171                 default:
4172                         break;
4173                 }
4174         } endfor_ifa(indev);
4175
4176         in_dev_put(indev);
4177 }
4178
4179 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4180 {
4181         struct qlcnic_adapter *adapter = netdev_priv(netdev);
4182         struct net_device *dev;
4183         u16 vid;
4184
4185         qlcnic_config_indev_addr(adapter, netdev, event);
4186
4187         rcu_read_lock();
4188         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
4189                 dev = __vlan_find_dev_deep_rcu(netdev, htons(ETH_P_8021Q), vid);
4190                 if (!dev)
4191                         continue;
4192                 qlcnic_config_indev_addr(adapter, dev, event);
4193         }
4194         rcu_read_unlock();
4195 }
4196
4197 static int qlcnic_netdev_event(struct notifier_block *this,
4198                                  unsigned long event, void *ptr)
4199 {
4200         struct qlcnic_adapter *adapter;
4201         struct net_device *dev = netdev_notifier_info_to_dev(ptr);
4202
4203 recheck:
4204         if (dev == NULL)
4205                 goto done;
4206
4207         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4208                 dev = vlan_dev_real_dev(dev);
4209                 goto recheck;
4210         }
4211
4212         if (!is_qlcnic_netdev(dev))
4213                 goto done;
4214
4215         adapter = netdev_priv(dev);
4216
4217         if (!adapter)
4218                 goto done;
4219
4220         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4221                 goto done;
4222
4223         qlcnic_config_indev_addr(adapter, dev, event);
4224 done:
4225         return NOTIFY_DONE;
4226 }
4227
4228 static int
4229 qlcnic_inetaddr_event(struct notifier_block *this,
4230                 unsigned long event, void *ptr)
4231 {
4232         struct qlcnic_adapter *adapter;
4233         struct net_device *dev;
4234
4235         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4236
4237         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4238
4239 recheck:
4240         if (dev == NULL)
4241                 goto done;
4242
4243         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4244                 dev = vlan_dev_real_dev(dev);
4245                 goto recheck;
4246         }
4247
4248         if (!is_qlcnic_netdev(dev))
4249                 goto done;
4250
4251         adapter = netdev_priv(dev);
4252
4253         if (!adapter)
4254                 goto done;
4255
4256         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4257                 goto done;
4258
4259         switch (event) {
4260         case NETDEV_UP:
4261                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4262
4263                 break;
4264         case NETDEV_DOWN:
4265                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4266
4267                 break;
4268         default:
4269                 break;
4270         }
4271
4272 done:
4273         return NOTIFY_DONE;
4274 }
4275
4276 static struct notifier_block    qlcnic_netdev_cb = {
4277         .notifier_call = qlcnic_netdev_event,
4278 };
4279
4280 static struct notifier_block qlcnic_inetaddr_cb = {
4281         .notifier_call = qlcnic_inetaddr_event,
4282 };
4283 #else
4284 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4285 { }
4286 #endif
4287 static const struct pci_error_handlers qlcnic_err_handler = {
4288         .error_detected = qlcnic_io_error_detected,
4289         .slot_reset = qlcnic_io_slot_reset,
4290         .resume = qlcnic_io_resume,
4291 };
4292
4293 static struct pci_driver qlcnic_driver = {
4294         .name = qlcnic_driver_name,
4295         .id_table = qlcnic_pci_tbl,
4296         .probe = qlcnic_probe,
4297         .remove = qlcnic_remove,
4298 #ifdef CONFIG_PM
4299         .suspend = qlcnic_suspend,
4300         .resume = qlcnic_resume,
4301 #endif
4302         .shutdown = qlcnic_shutdown,
4303         .err_handler = &qlcnic_err_handler,
4304 #ifdef CONFIG_QLCNIC_SRIOV
4305         .sriov_configure = qlcnic_pci_sriov_configure,
4306 #endif
4307
4308 };
4309
4310 static int __init qlcnic_init_module(void)
4311 {
4312         int ret;
4313
4314         printk(KERN_INFO "%s\n", qlcnic_driver_string);
4315
4316 #ifdef CONFIG_INET
4317         register_netdevice_notifier(&qlcnic_netdev_cb);
4318         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4319 #endif
4320
4321         ret = pci_register_driver(&qlcnic_driver);
4322         if (ret) {
4323 #ifdef CONFIG_INET
4324                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4325                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4326 #endif
4327         }
4328
4329         return ret;
4330 }
4331
4332 module_init(qlcnic_init_module);
4333
4334 static void __exit qlcnic_exit_module(void)
4335 {
4336         pci_unregister_driver(&qlcnic_driver);
4337
4338 #ifdef CONFIG_INET
4339         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4340         unregister_netdevice_notifier(&qlcnic_netdev_cb);
4341 #endif
4342 }
4343
4344 module_exit(qlcnic_exit_module);