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

   1 /*
   2  * QLogic qlcnic NIC Driver
   3  * Copyright (c) 2009-2013 QLogic Corporation
   4  *
   5  * See LICENSE.qlcnic for copyright and licensing details.
   6  */
   7
   8 #include <linux/vmalloc.h>
   9 #include <linux/interrupt.h>
  10 #include <linux/swab.h>
  11 #include <linux/dma-mapping.h>
  12 #include <linux/if_vlan.h>
  13 #include <net/ip.h>
  14 #include <linux/ipv6.h>
  15 #include <linux/inetdevice.h>
  16 #include <linux/aer.h>
  17 #include <linux/log2.h>
  18 #include <linux/pci.h>
  19 #ifdef CONFIG_QLCNIC_VXLAN
  20 #include <net/vxlan.h>
  21 #endif
  22
  23 #include "qlcnic.h"
  24 #include "qlcnic_sriov.h"
  25 #include "qlcnic_hw.h"
  26
  27 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
  28 MODULE_LICENSE("GPL");
  29 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
  30 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
  31
  32 char qlcnic_driver_name[] = "qlcnic";
  33 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
  34         "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
  35
  36 static int qlcnic_mac_learn;
  37 module_param(qlcnic_mac_learn, int, 0444);
  38 MODULE_PARM_DESC(qlcnic_mac_learn,
  39                  "Mac Filter (0=learning is disabled, 1=Driver learning is enabled, 2=FDB learning is enabled)");
  40
  41 int qlcnic_use_msi = 1;
  42 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled)");
  43 module_param_named(use_msi, qlcnic_use_msi, int, 0444);
  44
  45 int qlcnic_use_msi_x = 1;
  46 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled)");
  47 module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444);
  48
  49 int qlcnic_auto_fw_reset = 1;
  50 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled)");
  51 module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644);
  52
  53 int qlcnic_load_fw_file;
  54 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)");
  55 module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);
  56
  57 static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
  58 static void qlcnic_remove(struct pci_dev *pdev);
  59 static int qlcnic_open(struct net_device *netdev);
  60 static int qlcnic_close(struct net_device *netdev);
  61 static void qlcnic_tx_timeout(struct net_device *netdev);
  62 static void qlcnic_attach_work(struct work_struct *work);
  63 static void qlcnic_fwinit_work(struct work_struct *work);
  64 #ifdef CONFIG_NET_POLL_CONTROLLER
  65 static void qlcnic_poll_controller(struct net_device *netdev);
  66 #endif
  67
  68 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
  69 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
  70
  71 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
  72 static irqreturn_t qlcnic_intr(int irq, void *data);
  73 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
  74 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
  75 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data);
  76
  77 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
  78 static int qlcnic_start_firmware(struct qlcnic_adapter *);
  79
  80 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
  81 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
  82 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
  83 static int qlcnic_vlan_rx_add(struct net_device *, __be16, u16);
  84 static int qlcnic_vlan_rx_del(struct net_device *, __be16, u16);
  85
  86 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *);
  87 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *, u32);
  88 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *);
  89 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *);
  90 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *);
  91 static void qlcnic_82xx_io_resume(struct pci_dev *);
  92 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *);
  93 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *,
  94                                                       pci_channel_state_t);
  95 static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
  96 {
  97         struct qlcnic_hardware_context *ahw = adapter->ahw;
  98
  99         if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
 100                 return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
 101         else
 102                 return 1;
 103 }
 104
 105 /*  PCI Device ID Table  */
 106 #define ENTRY(device) \
 107         {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
 108         .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
 109
 110 static const struct pci_device_id qlcnic_pci_tbl[] = {
 111         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
 112         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
 113         ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE834X),
 114         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE8830),
 115         ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE8C30),
 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         kfree(recv_ctx->sds_rings);
 298         recv_ctx->sds_rings = NULL;
 299 }
 300
 301 int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
 302 {
 303         struct net_device *netdev = adapter->netdev;
 304         struct pci_dev *pdev = adapter->pdev;
 305         u8 mac_addr[ETH_ALEN];
 306         int ret;
 307
 308         ret = qlcnic_get_mac_address(adapter, mac_addr,
 309                                      adapter->ahw->pci_func);
 310         if (ret)
 311                 return ret;
 312
 313         memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
 314         memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
 315
 316         /* set station address */
 317
 318         if (!is_valid_ether_addr(netdev->dev_addr))
 319                 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
 320                                         netdev->dev_addr);
 321
 322         return 0;
 323 }
 324
 325 static void qlcnic_delete_adapter_mac(struct qlcnic_adapter *adapter)
 326 {
 327         struct qlcnic_mac_vlan_list *cur;
 328         struct list_head *head;
 329
 330         list_for_each(head, &adapter->mac_list) {
 331                 cur = list_entry(head, struct qlcnic_mac_vlan_list, list);
 332                 if (ether_addr_equal_unaligned(adapter->mac_addr, cur->mac_addr)) {
 333                         qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
 334                                                   0, QLCNIC_MAC_DEL);
 335                         list_del(&cur->list);
 336                         kfree(cur);
 337                         return;
 338                 }
 339         }
 340 }
 341
 342 static int qlcnic_set_mac(struct net_device *netdev, void *p)
 343 {
 344         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 345         struct sockaddr *addr = p;
 346
 347         if (qlcnic_sriov_vf_check(adapter))
 348                 return -EINVAL;
 349
 350         if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
 351                 return -EOPNOTSUPP;
 352
 353         if (!is_valid_ether_addr(addr->sa_data))
 354                 return -EINVAL;
 355
 356         if (ether_addr_equal_unaligned(adapter->mac_addr, addr->sa_data))
 357                 return 0;
 358
 359         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 360                 netif_device_detach(netdev);
 361                 qlcnic_napi_disable(adapter);
 362         }
 363
 364         qlcnic_delete_adapter_mac(adapter);
 365         memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
 366         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 367         qlcnic_set_multi(adapter->netdev);
 368
 369         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 370                 netif_device_attach(netdev);
 371                 qlcnic_napi_enable(adapter);
 372         }
 373         return 0;
 374 }
 375
 376 static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
 377                         struct net_device *netdev,
 378                         const unsigned char *addr, u16 vid)
 379 {
 380         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 381         int err = -EOPNOTSUPP;
 382
 383         if (!adapter->fdb_mac_learn)
 384                 return ndo_dflt_fdb_del(ndm, tb, netdev, addr, vid);
 385
 386         if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
 387             qlcnic_sriov_check(adapter)) {
 388                 if (is_unicast_ether_addr(addr)) {
 389                         err = dev_uc_del(netdev, addr);
 390                         if (!err)
 391                                 err = qlcnic_nic_del_mac(adapter, addr);
 392                 } else if (is_multicast_ether_addr(addr)) {
 393                         err = dev_mc_del(netdev, addr);
 394                 } else {
 395                         err =  -EINVAL;
 396                 }
 397         }
 398         return err;
 399 }
 400
 401 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 402                         struct net_device *netdev,
 403                         const unsigned char *addr, u16 vid, u16 flags)
 404 {
 405         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 406         int err = 0;
 407
 408         if (!adapter->fdb_mac_learn)
 409                 return ndo_dflt_fdb_add(ndm, tb, netdev, addr, vid, flags);
 410
 411         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) &&
 412             !qlcnic_sriov_check(adapter)) {
 413                 pr_info("%s: FDB e-switch is not enabled\n", __func__);
 414                 return -EOPNOTSUPP;
 415         }
 416
 417         if (ether_addr_equal(addr, adapter->mac_addr))
 418                 return err;
 419
 420         if (is_unicast_ether_addr(addr)) {
 421                 if (netdev_uc_count(netdev) < adapter->ahw->max_uc_count)
 422                         err = dev_uc_add_excl(netdev, addr);
 423                 else
 424                         err = -ENOMEM;
 425         } else if (is_multicast_ether_addr(addr)) {
 426                 err = dev_mc_add_excl(netdev, addr);
 427         } else {
 428                 err = -EINVAL;
 429         }
 430
 431         return err;
 432 }
 433
 434 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
 435                         struct net_device *netdev,
 436                         struct net_device *filter_dev, int idx)
 437 {
 438         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 439
 440         if (!adapter->fdb_mac_learn)
 441                 return ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
 442
 443         if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
 444             qlcnic_sriov_check(adapter))
 445                 idx = ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
 446
 447         return idx;
 448 }
 449
 450 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
 451 {
 452         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
 453                 usleep_range(10000, 11000);
 454
 455         if (!adapter->fw_work.work.func)
 456                 return;
 457
 458         cancel_delayed_work_sync(&adapter->fw_work);
 459 }
 460
 461 static int qlcnic_get_phys_port_id(struct net_device *netdev,
 462                                    struct netdev_phys_item_id *ppid)
 463 {
 464         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 465         struct qlcnic_hardware_context *ahw = adapter->ahw;
 466
 467         if (!(adapter->flags & QLCNIC_HAS_PHYS_PORT_ID))
 468                 return -EOPNOTSUPP;
 469
 470         ppid->id_len = sizeof(ahw->phys_port_id);
 471         memcpy(ppid->id, ahw->phys_port_id, ppid->id_len);
 472
 473         return 0;
 474 }
 475
 476 #ifdef CONFIG_QLCNIC_VXLAN
 477 static void qlcnic_add_vxlan_port(struct net_device *netdev,
 478                                   sa_family_t sa_family, __be16 port)
 479 {
 480         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 481         struct qlcnic_hardware_context *ahw = adapter->ahw;
 482
 483         /* Adapter supports only one VXLAN port. Use very first port
 484          * for enabling offload
 485          */
 486         if (!qlcnic_encap_rx_offload(adapter) || ahw->vxlan_port)
 487                 return;
 488
 489         ahw->vxlan_port = ntohs(port);
 490         adapter->flags |= QLCNIC_ADD_VXLAN_PORT;
 491 }
 492
 493 static void qlcnic_del_vxlan_port(struct net_device *netdev,
 494                                   sa_family_t sa_family, __be16 port)
 495 {
 496         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 497         struct qlcnic_hardware_context *ahw = adapter->ahw;
 498
 499         if (!qlcnic_encap_rx_offload(adapter) || !ahw->vxlan_port ||
 500             (ahw->vxlan_port != ntohs(port)))
 501                 return;
 502
 503         adapter->flags |= QLCNIC_DEL_VXLAN_PORT;
 504 }
 505
 506 static netdev_features_t qlcnic_features_check(struct sk_buff *skb,
 507                                                struct net_device *dev,
 508                                                netdev_features_t features)
 509 {
 510         features = vlan_features_check(skb, features);
 511         return vxlan_features_check(skb, features);
 512 }
 513 #endif
 514
 515 static const struct net_device_ops qlcnic_netdev_ops = {
 516         .ndo_open          = qlcnic_open,
 517         .ndo_stop          = qlcnic_close,
 518         .ndo_start_xmit    = qlcnic_xmit_frame,
 519         .ndo_get_stats     = qlcnic_get_stats,
 520         .ndo_validate_addr = eth_validate_addr,
 521         .ndo_set_rx_mode   = qlcnic_set_multi,
 522         .ndo_set_mac_address    = qlcnic_set_mac,
 523         .ndo_change_mtu    = qlcnic_change_mtu,
 524         .ndo_fix_features  = qlcnic_fix_features,
 525         .ndo_set_features  = qlcnic_set_features,
 526         .ndo_tx_timeout    = qlcnic_tx_timeout,
 527         .ndo_vlan_rx_add_vid    = qlcnic_vlan_rx_add,
 528         .ndo_vlan_rx_kill_vid   = qlcnic_vlan_rx_del,
 529         .ndo_fdb_add            = qlcnic_fdb_add,
 530         .ndo_fdb_del            = qlcnic_fdb_del,
 531         .ndo_fdb_dump           = qlcnic_fdb_dump,
 532         .ndo_get_phys_port_id   = qlcnic_get_phys_port_id,
 533 #ifdef CONFIG_QLCNIC_VXLAN
 534         .ndo_add_vxlan_port     = qlcnic_add_vxlan_port,
 535         .ndo_del_vxlan_port     = qlcnic_del_vxlan_port,
 536         .ndo_features_check     = qlcnic_features_check,
 537 #endif
 538 #ifdef CONFIG_NET_POLL_CONTROLLER
 539         .ndo_poll_controller = qlcnic_poll_controller,
 540 #endif
 541 #ifdef CONFIG_QLCNIC_SRIOV
 542         .ndo_set_vf_mac         = qlcnic_sriov_set_vf_mac,
 543         .ndo_set_vf_rate        = qlcnic_sriov_set_vf_tx_rate,
 544         .ndo_get_vf_config      = qlcnic_sriov_get_vf_config,
 545         .ndo_set_vf_vlan        = qlcnic_sriov_set_vf_vlan,
 546         .ndo_set_vf_spoofchk    = qlcnic_sriov_set_vf_spoofchk,
 547 #endif
 548 };
 549
 550 static const struct net_device_ops qlcnic_netdev_failed_ops = {
 551         .ndo_open          = qlcnic_open,
 552 };
 553
 554 static struct qlcnic_nic_template qlcnic_ops = {
 555         .config_bridged_mode    = qlcnic_config_bridged_mode,
 556         .config_led             = qlcnic_82xx_config_led,
 557         .start_firmware         = qlcnic_82xx_start_firmware,
 558         .request_reset          = qlcnic_82xx_dev_request_reset,
 559         .cancel_idc_work        = qlcnic_82xx_cancel_idc_work,
 560         .napi_add               = qlcnic_82xx_napi_add,
 561         .napi_del               = qlcnic_82xx_napi_del,
 562         .config_ipaddr          = qlcnic_82xx_config_ipaddr,
 563         .shutdown               = qlcnic_82xx_shutdown,
 564         .resume                 = qlcnic_82xx_resume,
 565         .clear_legacy_intr      = qlcnic_82xx_clear_legacy_intr,
 566 };
 567
 568 struct qlcnic_nic_template qlcnic_vf_ops = {
 569         .config_bridged_mode    = qlcnicvf_config_bridged_mode,
 570         .config_led             = qlcnicvf_config_led,
 571         .start_firmware         = qlcnicvf_start_firmware
 572 };
 573
 574 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
 575         .read_crb                       = qlcnic_82xx_read_crb,
 576         .write_crb                      = qlcnic_82xx_write_crb,
 577         .read_reg                       = qlcnic_82xx_hw_read_wx_2M,
 578         .write_reg                      = qlcnic_82xx_hw_write_wx_2M,
 579         .get_mac_address                = qlcnic_82xx_get_mac_address,
 580         .setup_intr                     = qlcnic_82xx_setup_intr,
 581         .alloc_mbx_args                 = qlcnic_82xx_alloc_mbx_args,
 582         .mbx_cmd                        = qlcnic_82xx_issue_cmd,
 583         .get_func_no                    = qlcnic_82xx_get_func_no,
 584         .api_lock                       = qlcnic_82xx_api_lock,
 585         .api_unlock                     = qlcnic_82xx_api_unlock,
 586         .add_sysfs                      = qlcnic_82xx_add_sysfs,
 587         .remove_sysfs                   = qlcnic_82xx_remove_sysfs,
 588         .process_lb_rcv_ring_diag       = qlcnic_82xx_process_rcv_ring_diag,
 589         .create_rx_ctx                  = qlcnic_82xx_fw_cmd_create_rx_ctx,
 590         .create_tx_ctx                  = qlcnic_82xx_fw_cmd_create_tx_ctx,
 591         .del_rx_ctx                     = qlcnic_82xx_fw_cmd_del_rx_ctx,
 592         .del_tx_ctx                     = qlcnic_82xx_fw_cmd_del_tx_ctx,
 593         .setup_link_event               = qlcnic_82xx_linkevent_request,
 594         .get_nic_info                   = qlcnic_82xx_get_nic_info,
 595         .get_pci_info                   = qlcnic_82xx_get_pci_info,
 596         .set_nic_info                   = qlcnic_82xx_set_nic_info,
 597         .change_macvlan                 = qlcnic_82xx_sre_macaddr_change,
 598         .napi_enable                    = qlcnic_82xx_napi_enable,
 599         .napi_disable                   = qlcnic_82xx_napi_disable,
 600         .config_intr_coal               = qlcnic_82xx_config_intr_coalesce,
 601         .config_rss                     = qlcnic_82xx_config_rss,
 602         .config_hw_lro                  = qlcnic_82xx_config_hw_lro,
 603         .config_loopback                = qlcnic_82xx_set_lb_mode,
 604         .clear_loopback                 = qlcnic_82xx_clear_lb_mode,
 605         .config_promisc_mode            = qlcnic_82xx_nic_set_promisc,
 606         .change_l2_filter               = qlcnic_82xx_change_filter,
 607         .get_board_info                 = qlcnic_82xx_get_board_info,
 608         .set_mac_filter_count           = qlcnic_82xx_set_mac_filter_count,
 609         .free_mac_list                  = qlcnic_82xx_free_mac_list,
 610         .read_phys_port_id              = qlcnic_82xx_read_phys_port_id,
 611         .io_error_detected              = qlcnic_82xx_io_error_detected,
 612         .io_slot_reset                  = qlcnic_82xx_io_slot_reset,
 613         .io_resume                      = qlcnic_82xx_io_resume,
 614         .get_beacon_state               = qlcnic_82xx_get_beacon_state,
 615         .enable_sds_intr                = qlcnic_82xx_enable_sds_intr,
 616         .disable_sds_intr               = qlcnic_82xx_disable_sds_intr,
 617         .enable_tx_intr                 = qlcnic_82xx_enable_tx_intr,
 618         .disable_tx_intr                = qlcnic_82xx_disable_tx_intr,
 619         .get_saved_state                = qlcnic_82xx_get_saved_state,
 620         .set_saved_state                = qlcnic_82xx_set_saved_state,
 621         .cache_tmpl_hdr_values          = qlcnic_82xx_cache_tmpl_hdr_values,
 622         .get_cap_size                   = qlcnic_82xx_get_cap_size,
 623         .set_sys_info                   = qlcnic_82xx_set_sys_info,
 624         .store_cap_mask                 = qlcnic_82xx_store_cap_mask,
 625 };
 626
 627 static int qlcnic_check_multi_tx_capability(struct qlcnic_adapter *adapter)
 628 {
 629         struct qlcnic_hardware_context *ahw = adapter->ahw;
 630
 631         if (qlcnic_82xx_check(adapter) &&
 632             (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_MULTI_TX)) {
 633                 test_and_set_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
 634                 return 0;
 635         } else {
 636                 return 1;
 637         }
 638 }
 639
 640 static int qlcnic_max_rings(struct qlcnic_adapter *adapter, u8 ring_cnt,
 641                             int queue_type)
 642 {
 643         int num_rings, max_rings = QLCNIC_MAX_SDS_RINGS;
 644
 645         if (queue_type == QLCNIC_RX_QUEUE)
 646                 max_rings = adapter->max_sds_rings;
 647         else if (queue_type == QLCNIC_TX_QUEUE)
 648                 max_rings = adapter->max_tx_rings;
 649
 650         num_rings = rounddown_pow_of_two(min_t(int, num_online_cpus(),
 651                                               max_rings));
 652
 653         if (ring_cnt > num_rings)
 654                 return num_rings;
 655         else
 656                 return ring_cnt;
 657 }
 658
 659 void qlcnic_set_tx_ring_count(struct qlcnic_adapter *adapter, u8 tx_cnt)
 660 {
 661         /* 83xx adapter does not have max_tx_rings intialized in probe */
 662         if (adapter->max_tx_rings)
 663                 adapter->drv_tx_rings = qlcnic_max_rings(adapter, tx_cnt,
 664                                                          QLCNIC_TX_QUEUE);
 665         else
 666                 adapter->drv_tx_rings = tx_cnt;
 667 }
 668
 669 void qlcnic_set_sds_ring_count(struct qlcnic_adapter *adapter, u8 rx_cnt)
 670 {
 671         /* 83xx adapter does not have max_sds_rings intialized in probe */
 672         if (adapter->max_sds_rings)
 673                 adapter->drv_sds_rings = qlcnic_max_rings(adapter, rx_cnt,
 674                                                           QLCNIC_RX_QUEUE);
 675         else
 676                 adapter->drv_sds_rings = rx_cnt;
 677 }
 678
 679 int qlcnic_setup_tss_rss_intr(struct qlcnic_adapter *adapter)
 680 {
 681         struct pci_dev *pdev = adapter->pdev;
 682         int num_msix = 0, err = 0, vector;
 683
 684         adapter->flags &= ~QLCNIC_TSS_RSS;
 685
 686         if (adapter->drv_tss_rings > 0)
 687                 num_msix += adapter->drv_tss_rings;
 688         else
 689                 num_msix += adapter->drv_tx_rings;
 690
 691         if (adapter->drv_rss_rings > 0)
 692                 num_msix += adapter->drv_rss_rings;
 693         else
 694                 num_msix += adapter->drv_sds_rings;
 695
 696         if (qlcnic_83xx_check(adapter))
 697                 num_msix += 1;
 698
 699         if (!adapter->msix_entries) {
 700                 adapter->msix_entries = kcalloc(num_msix,
 701                                                 sizeof(struct msix_entry),
 702                                                 GFP_KERNEL);
 703                 if (!adapter->msix_entries)
 704                         return -ENOMEM;
 705         }
 706
 707         for (vector = 0; vector < num_msix; vector++)
 708                 adapter->msix_entries[vector].entry = vector;
 709
 710 restore:
 711         err = pci_enable_msix_exact(pdev, adapter->msix_entries, num_msix);
 712         if (err == -ENOSPC) {
 713                 if (!adapter->drv_tss_rings && !adapter->drv_rss_rings)
 714                         return err;
 715
 716                 netdev_info(adapter->netdev,
 717                             "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
 718                             num_msix, err);
 719
 720                 num_msix = adapter->drv_tx_rings + adapter->drv_sds_rings;
 721
 722                 /* Set rings to 0 so we can restore original TSS/RSS count */
 723                 adapter->drv_tss_rings = 0;
 724                 adapter->drv_rss_rings = 0;
 725
 726                 if (qlcnic_83xx_check(adapter))
 727                         num_msix += 1;
 728
 729                 netdev_info(adapter->netdev,
 730                             "Restoring %d Tx, %d SDS rings for total %d vectors.\n",
 731                             adapter->drv_tx_rings, adapter->drv_sds_rings,
 732                             num_msix);
 733
 734                 goto restore;
 735         } else if (err < 0) {
 736                 return err;
 737         }
 738
 739         adapter->ahw->num_msix = num_msix;
 740         if (adapter->drv_tss_rings > 0)
 741                 adapter->drv_tx_rings = adapter->drv_tss_rings;
 742
 743         if (adapter->drv_rss_rings > 0)
 744                 adapter->drv_sds_rings = adapter->drv_rss_rings;
 745
 746         return 0;
 747 }
 748
 749 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 750 {
 751         struct pci_dev *pdev = adapter->pdev;
 752         int err, vector;
 753
 754         if (!adapter->msix_entries) {
 755                 adapter->msix_entries = kcalloc(num_msix,
 756                                                 sizeof(struct msix_entry),
 757                                                 GFP_KERNEL);
 758                 if (!adapter->msix_entries)
 759                         return -ENOMEM;
 760         }
 761
 762         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 763
 764         if (adapter->ahw->msix_supported) {
 765 enable_msix:
 766                 for (vector = 0; vector < num_msix; vector++)
 767                         adapter->msix_entries[vector].entry = vector;
 768
 769                 err = pci_enable_msix_range(pdev,
 770                                             adapter->msix_entries, 1, num_msix);
 771
 772                 if (err == num_msix) {
 773                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 774                         adapter->ahw->num_msix = num_msix;
 775                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 776                         return 0;
 777                 } else if (err > 0) {
 778                         pci_disable_msix(pdev);
 779
 780                         dev_info(&pdev->dev,
 781                                  "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
 782                                  num_msix, err);
 783
 784                         if (qlcnic_82xx_check(adapter)) {
 785                                 num_msix = rounddown_pow_of_two(err);
 786                                 if (err < QLCNIC_82XX_MINIMUM_VECTOR)
 787                                         return -ENOSPC;
 788                         } else {
 789                                 num_msix = rounddown_pow_of_two(err - 1);
 790                                 num_msix += 1;
 791                                 if (err < QLCNIC_83XX_MINIMUM_VECTOR)
 792                                         return -ENOSPC;
 793                         }
 794
 795                         if (qlcnic_82xx_check(adapter) &&
 796                             !qlcnic_check_multi_tx(adapter)) {
 797                                 adapter->drv_sds_rings = num_msix;
 798                                 adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
 799                         } else {
 800                                 /* Distribute vectors equally */
 801                                 adapter->drv_tx_rings = num_msix / 2;
 802                                 adapter->drv_sds_rings = adapter->drv_tx_rings;
 803                         }
 804
 805                         if (num_msix) {
 806                                 dev_info(&pdev->dev,
 807                                          "Trying to allocate %d MSI-X interrupt vectors\n",
 808                                          num_msix);
 809                                 goto enable_msix;
 810                         }
 811                 } else {
 812                         dev_info(&pdev->dev,
 813                                  "Unable to allocate %d MSI-X vectors, err=%d\n",
 814                                  num_msix, err);
 815                         return err;
 816                 }
 817         }
 818
 819         return -EIO;
 820 }
 821
 822 static int qlcnic_82xx_calculate_msix_vector(struct qlcnic_adapter *adapter)
 823 {
 824         int num_msix;
 825
 826         num_msix = adapter->drv_sds_rings;
 827
 828         if (qlcnic_check_multi_tx(adapter))
 829                 num_msix += adapter->drv_tx_rings;
 830         else
 831                 num_msix += QLCNIC_SINGLE_RING;
 832
 833         return num_msix;
 834 }
 835
 836 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
 837 {
 838         int err = 0;
 839         u32 offset, mask_reg;
 840         const struct qlcnic_legacy_intr_set *legacy_intrp;
 841         struct qlcnic_hardware_context *ahw = adapter->ahw;
 842         struct pci_dev *pdev = adapter->pdev;
 843
 844         if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
 845                 adapter->flags |= QLCNIC_MSI_ENABLED;
 846                 offset = msi_tgt_status[adapter->ahw->pci_func];
 847                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
 848                                                             offset);
 849                 dev_info(&pdev->dev, "using msi interrupts\n");
 850                 adapter->msix_entries[0].vector = pdev->irq;
 851                 return err;
 852         }
 853
 854         if (qlcnic_use_msi || qlcnic_use_msi_x)
 855                 return -EOPNOTSUPP;
 856
 857         legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
 858         adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
 859         offset = legacy_intrp->tgt_status_reg;
 860         adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
 861         mask_reg = legacy_intrp->tgt_mask_reg;
 862         adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
 863         adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
 864         adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
 865         dev_info(&pdev->dev, "using legacy interrupts\n");
 866         adapter->msix_entries[0].vector = pdev->irq;
 867         return err;
 868 }
 869
 870 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter)
 871 {
 872         int num_msix, err = 0;
 873
 874         if (adapter->flags & QLCNIC_TSS_RSS) {
 875                 err = qlcnic_setup_tss_rss_intr(adapter);
 876                 if (err < 0)
 877                         return err;
 878                 num_msix = adapter->ahw->num_msix;
 879         } else {
 880                 num_msix = qlcnic_82xx_calculate_msix_vector(adapter);
 881
 882                 err = qlcnic_enable_msix(adapter, num_msix);
 883                 if (err == -ENOMEM)
 884                         return err;
 885
 886                 if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
 887                         qlcnic_disable_multi_tx(adapter);
 888                         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
 889
 890                         err = qlcnic_enable_msi_legacy(adapter);
 891                         if (err)
 892                                 return err;
 893                 }
 894         }
 895
 896         return 0;
 897 }
 898
 899 int qlcnic_82xx_mq_intrpt(struct qlcnic_adapter *adapter, int op_type)
 900 {
 901         struct qlcnic_hardware_context *ahw = adapter->ahw;
 902         int err, i;
 903
 904         if (qlcnic_check_multi_tx(adapter) &&
 905             !ahw->diag_test &&
 906             (adapter->flags & QLCNIC_MSIX_ENABLED)) {
 907                 ahw->intr_tbl = vzalloc(ahw->num_msix *
 908                                         sizeof(struct qlcnic_intrpt_config));
 909                 if (!ahw->intr_tbl)
 910                         return -ENOMEM;
 911
 912                 for (i = 0; i < ahw->num_msix; i++) {
 913                         ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
 914                         ahw->intr_tbl[i].id = i;
 915                         ahw->intr_tbl[i].src = 0;
 916                 }
 917
 918                 err = qlcnic_82xx_config_intrpt(adapter, 1);
 919                 if (err)
 920                         dev_err(&adapter->pdev->dev,
 921                                 "Failed to configure Interrupt for %d vector\n",
 922                                 ahw->num_msix);
 923                 return err;
 924         }
 925
 926         return 0;
 927 }
 928
 929 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 930 {
 931         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 932                 pci_disable_msix(adapter->pdev);
 933         if (adapter->flags & QLCNIC_MSI_ENABLED)
 934                 pci_disable_msi(adapter->pdev);
 935
 936         kfree(adapter->msix_entries);
 937         adapter->msix_entries = NULL;
 938
 939         if (adapter->ahw->intr_tbl) {
 940                 vfree(adapter->ahw->intr_tbl);
 941                 adapter->ahw->intr_tbl = NULL;
 942         }
 943 }
 944
 945 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
 946 {
 947         if (ahw->pci_base0 != NULL)
 948                 iounmap(ahw->pci_base0);
 949 }
 950
 951 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
 952 {
 953         struct qlcnic_hardware_context *ahw = adapter->ahw;
 954         struct qlcnic_pci_info *pci_info;
 955         int ret;
 956
 957         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 958                 switch (ahw->port_type) {
 959                 case QLCNIC_GBE:
 960                         ahw->total_nic_func = QLCNIC_NIU_MAX_GBE_PORTS;
 961                         break;
 962                 case QLCNIC_XGBE:
 963                         ahw->total_nic_func = QLCNIC_NIU_MAX_XG_PORTS;
 964                         break;
 965                 }
 966                 return 0;
 967         }
 968
 969         if (ahw->op_mode == QLCNIC_MGMT_FUNC)
 970                 return 0;
 971
 972         pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
 973         if (!pci_info)
 974                 return -ENOMEM;
 975
 976         ret = qlcnic_get_pci_info(adapter, pci_info);
 977         kfree(pci_info);
 978         return ret;
 979 }
 980
 981 static bool qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter *adapter)
 982 {
 983         bool ret = false;
 984
 985         if (qlcnic_84xx_check(adapter)) {
 986                 ret = true;
 987         } else if (qlcnic_83xx_check(adapter)) {
 988                 if (adapter->ahw->extra_capability[0] &
 989                     QLCNIC_FW_CAPABILITY_2_PER_PORT_ESWITCH_CFG)
 990                         ret = true;
 991                 else
 992                         ret = false;
 993         }
 994
 995         return ret;
 996 }
 997
 998 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 999 {
1000         struct qlcnic_hardware_context *ahw = adapter->ahw;
1001         struct qlcnic_pci_info *pci_info;
1002         int i, id = 0, ret = 0, j = 0;
1003         u16 act_pci_func;
1004         u8 pfn;
1005
1006         pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
1007         if (!pci_info)
1008                 return -ENOMEM;
1009
1010         ret = qlcnic_get_pci_info(adapter, pci_info);
1011         if (ret)
1012                 goto err_pci_info;
1013
1014         act_pci_func = ahw->total_nic_func;
1015
1016         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
1017                                  act_pci_func, GFP_KERNEL);
1018         if (!adapter->npars) {
1019                 ret = -ENOMEM;
1020                 goto err_pci_info;
1021         }
1022
1023         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
1024                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
1025         if (!adapter->eswitch) {
1026                 ret = -ENOMEM;
1027                 goto err_npars;
1028         }
1029
1030         for (i = 0; i < ahw->max_vnic_func; i++) {
1031                 pfn = pci_info[i].id;
1032
1033                 if (pfn >= ahw->max_vnic_func) {
1034                         ret = -EINVAL;
1035                         dev_err(&adapter->pdev->dev, "%s: Invalid function 0x%x, max 0x%x\n",
1036                                 __func__, pfn, ahw->max_vnic_func);
1037                         goto err_eswitch;
1038                 }
1039
1040                 if (!pci_info[i].active ||
1041                     (pci_info[i].type != QLCNIC_TYPE_NIC))
1042                         continue;
1043
1044                 if (qlcnic_port_eswitch_cfg_capability(adapter)) {
1045                         if (!qlcnic_83xx_set_port_eswitch_status(adapter, pfn,
1046                                                                  &id))
1047                                 adapter->npars[j].eswitch_status = true;
1048                         else
1049                                 continue;
1050                 } else {
1051                         adapter->npars[j].eswitch_status = true;
1052                 }
1053
1054                 adapter->npars[j].pci_func = pfn;
1055                 adapter->npars[j].active = (u8)pci_info[i].active;
1056                 adapter->npars[j].type = (u8)pci_info[i].type;
1057                 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
1058                 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
1059                 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
1060
1061                 memcpy(&adapter->npars[j].mac, &pci_info[i].mac, ETH_ALEN);
1062                 j++;
1063         }
1064
1065         /* Update eSwitch status for adapters without per port eSwitch
1066          * configuration capability
1067          */
1068         if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
1069                 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
1070                         adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
1071         }
1072
1073         kfree(pci_info);
1074         return 0;
1075
1076 err_eswitch:
1077         kfree(adapter->eswitch);
1078         adapter->eswitch = NULL;
1079 err_npars:
1080         kfree(adapter->npars);
1081         adapter->npars = NULL;
1082 err_pci_info:
1083         kfree(pci_info);
1084
1085         return ret;
1086 }
1087
1088 static int
1089 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
1090 {
1091         u8 id;
1092         int ret;
1093         u32 data = QLCNIC_MGMT_FUNC;
1094         struct qlcnic_hardware_context *ahw = adapter->ahw;
1095
1096         ret = qlcnic_api_lock(adapter);
1097         if (ret)
1098                 goto err_lock;
1099
1100         id = ahw->pci_func;
1101         data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1102         data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
1103                QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
1104         QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
1105         qlcnic_api_unlock(adapter);
1106 err_lock:
1107         return ret;
1108 }
1109
1110 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
1111                             const struct pci_device_id *ent)
1112 {
1113         u32 op_mode, priv_level;
1114
1115         /* Determine FW API version */
1116         adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
1117                                                            QLCNIC_FW_API);
1118
1119         /* Find PCI function number */
1120         qlcnic_get_func_no(adapter);
1121
1122         /* Determine function privilege level */
1123         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1124         if (op_mode == QLC_DEV_DRV_DEFAULT)
1125                 priv_level = QLCNIC_MGMT_FUNC;
1126         else
1127                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1128
1129         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
1130                 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
1131                 dev_info(&adapter->pdev->dev,
1132                         "HAL Version: %d Non Privileged function\n",
1133                          adapter->ahw->fw_hal_version);
1134                 adapter->nic_ops = &qlcnic_vf_ops;
1135         } else
1136                 adapter->nic_ops = &qlcnic_ops;
1137 }
1138
1139 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
1140 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
1141 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
1142 {
1143         switch (dev_id) {
1144         case PCI_DEVICE_ID_QLOGIC_QLE824X:
1145                 *bar = QLCNIC_82XX_BAR0_LENGTH;
1146                 break;
1147         case PCI_DEVICE_ID_QLOGIC_QLE834X:
1148         case PCI_DEVICE_ID_QLOGIC_QLE8830:
1149         case PCI_DEVICE_ID_QLOGIC_QLE844X:
1150         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
1151         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
1152         case PCI_DEVICE_ID_QLOGIC_VF_QLE8C30:
1153                 *bar = QLCNIC_83XX_BAR0_LENGTH;
1154                 break;
1155         default:
1156                 *bar = 0;
1157         }
1158 }
1159
1160 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
1161                                 struct qlcnic_hardware_context *ahw)
1162 {
1163         u32 offset;
1164         void __iomem *mem_ptr0 = NULL;
1165         unsigned long mem_len, pci_len0 = 0, bar0_len;
1166
1167         /* remap phys address */
1168         mem_len = pci_resource_len(pdev, 0);
1169
1170         qlcnic_get_bar_length(pdev->device, &bar0_len);
1171         if (mem_len >= bar0_len) {
1172
1173                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
1174                 if (mem_ptr0 == NULL) {
1175                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
1176                         return -EIO;
1177                 }
1178                 pci_len0 = mem_len;
1179         } else {
1180                 return -EIO;
1181         }
1182
1183         dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
1184
1185         ahw->pci_base0 = mem_ptr0;
1186         ahw->pci_len0 = pci_len0;
1187         offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
1188         qlcnic_get_ioaddr(ahw, offset);
1189
1190         return 0;
1191 }
1192
1193 static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
1194                                          int index)
1195 {
1196         struct pci_dev *pdev = adapter->pdev;
1197         unsigned short subsystem_vendor;
1198         bool ret = true;
1199
1200         subsystem_vendor = pdev->subsystem_vendor;
1201
1202         if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
1203             pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1204                 if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
1205                     qlcnic_boards[index].sub_device == pdev->subsystem_device)
1206                         ret = true;
1207                 else
1208                         ret = false;
1209         }
1210
1211         return ret;
1212 }
1213
1214 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
1215 {
1216         struct pci_dev *pdev = adapter->pdev;
1217         int i, found = 0;
1218
1219         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1220                 if (qlcnic_boards[i].vendor == pdev->vendor &&
1221                     qlcnic_boards[i].device == pdev->device &&
1222                     qlcnic_validate_subsystem_id(adapter, i)) {
1223                         found = 1;
1224                         break;
1225                 }
1226         }
1227
1228         if (!found)
1229                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
1230         else
1231                 sprintf(name, "%pM: %s" , adapter->mac_addr,
1232                         qlcnic_boards[i].short_name);
1233 }
1234
1235 static void
1236 qlcnic_check_options(struct qlcnic_adapter *adapter)
1237 {
1238         int err;
1239         u32 fw_major, fw_minor, fw_build, prev_fw_version;
1240         struct pci_dev *pdev = adapter->pdev;
1241         struct qlcnic_hardware_context *ahw = adapter->ahw;
1242         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
1243
1244         prev_fw_version = adapter->fw_version;
1245
1246         fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
1247         fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
1248         fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
1249
1250         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
1251
1252         err = qlcnic_get_board_info(adapter);
1253         if (err) {
1254                 dev_err(&pdev->dev, "Error getting board config info.\n");
1255                 return;
1256         }
1257         if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
1258                 if (fw_dump->tmpl_hdr == NULL ||
1259                                 adapter->fw_version > prev_fw_version) {
1260                         vfree(fw_dump->tmpl_hdr);
1261                         if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1262                                 dev_info(&pdev->dev,
1263                                         "Supports FW dump capability\n");
1264                 }
1265         }
1266
1267         dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
1268                  QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
1269
1270         if (adapter->ahw->port_type == QLCNIC_XGBE) {
1271                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1272                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
1273                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
1274                 } else {
1275                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
1276                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
1277                 }
1278
1279                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1280                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1281
1282         } else if (adapter->ahw->port_type == QLCNIC_GBE) {
1283                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
1284                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1285                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1286                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
1287         }
1288
1289         adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
1290
1291         adapter->num_txd = MAX_CMD_DESCRIPTORS;
1292
1293         adapter->max_rds_rings = MAX_RDS_RINGS;
1294 }
1295
1296 static int
1297 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
1298 {
1299         struct qlcnic_info nic_info;
1300         int err = 0;
1301
1302         memset(&nic_info, 0, sizeof(struct qlcnic_info));
1303         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
1304         if (err)
1305                 return err;
1306
1307         adapter->ahw->physical_port = (u8)nic_info.phys_port;
1308         adapter->ahw->switch_mode = nic_info.switch_mode;
1309         adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
1310         adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
1311         adapter->ahw->capabilities = nic_info.capabilities;
1312
1313         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1314                 u32 temp;
1315                 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
1316                 if (err == -EIO)
1317                         return err;
1318                 adapter->ahw->extra_capability[0] = temp;
1319         } else {
1320                 adapter->ahw->extra_capability[0] = 0;
1321         }
1322
1323         adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1324         adapter->ahw->max_mtu = nic_info.max_mtu;
1325
1326         if (adapter->ahw->capabilities & BIT_6) {
1327                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1328                 adapter->ahw->nic_mode = QLCNIC_VNIC_MODE;
1329                 adapter->max_tx_rings = QLCNIC_MAX_HW_VNIC_TX_RINGS;
1330                 adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
1331
1332                 dev_info(&adapter->pdev->dev, "vNIC mode enabled.\n");
1333         } else {
1334                 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1335                 adapter->max_tx_rings = QLCNIC_MAX_HW_TX_RINGS;
1336                 adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
1337                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1338         }
1339
1340         return err;
1341 }
1342
1343 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1344                             struct qlcnic_esw_func_cfg *esw_cfg)
1345 {
1346         if (esw_cfg->discard_tagged)
1347                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1348         else
1349                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1350
1351         if (esw_cfg->vlan_id) {
1352                 adapter->rx_pvid = esw_cfg->vlan_id;
1353                 adapter->tx_pvid = esw_cfg->vlan_id;
1354         } else {
1355                 adapter->rx_pvid = 0;
1356                 adapter->tx_pvid = 0;
1357         }
1358 }
1359
1360 static int
1361 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1362 {
1363         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1364         int err;
1365
1366         if (qlcnic_sriov_vf_check(adapter)) {
1367                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1368                 if (err) {
1369                         netdev_err(netdev,
1370                                    "Cannot add VLAN filter for VLAN id %d, err=%d",
1371                                    vid, err);
1372                         return err;
1373                 }
1374         }
1375
1376         set_bit(vid, adapter->vlans);
1377         return 0;
1378 }
1379
1380 static int
1381 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1382 {
1383         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1384         int err;
1385
1386         if (qlcnic_sriov_vf_check(adapter)) {
1387                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1388                 if (err) {
1389                         netdev_err(netdev,
1390                                    "Cannot delete VLAN filter for VLAN id %d, err=%d",
1391                                    vid, err);
1392                         return err;
1393                 }
1394         }
1395
1396         qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1397         clear_bit(vid, adapter->vlans);
1398         return 0;
1399 }
1400
1401 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1402                                       struct qlcnic_esw_func_cfg *esw_cfg)
1403 {
1404         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1405                                 QLCNIC_PROMISC_DISABLED);
1406
1407         if (esw_cfg->mac_anti_spoof)
1408                 adapter->flags |= QLCNIC_MACSPOOF;
1409
1410         if (!esw_cfg->mac_override)
1411                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1412
1413         if (!esw_cfg->promisc_mode)
1414                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1415 }
1416
1417 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1418 {
1419         struct qlcnic_esw_func_cfg esw_cfg;
1420
1421         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1422                 return 0;
1423
1424         esw_cfg.pci_func = adapter->ahw->pci_func;
1425         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1426                         return -EIO;
1427         qlcnic_set_vlan_config(adapter, &esw_cfg);
1428         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1429         qlcnic_set_netdev_features(adapter, &esw_cfg);
1430
1431         return 0;
1432 }
1433
1434 void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1435                                 struct qlcnic_esw_func_cfg *esw_cfg)
1436 {
1437         struct net_device *netdev = adapter->netdev;
1438
1439         if (qlcnic_83xx_check(adapter))
1440                 return;
1441
1442         adapter->offload_flags = esw_cfg->offload_flags;
1443         adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1444         netdev_update_features(netdev);
1445         adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1446 }
1447
1448 static int
1449 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1450 {
1451         u32 op_mode, priv_level;
1452         int err = 0;
1453
1454         err = qlcnic_initialize_nic(adapter);
1455         if (err)
1456                 return err;
1457
1458         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1459                 return 0;
1460
1461         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1462         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1463
1464         if (op_mode == QLC_DEV_DRV_DEFAULT)
1465                 priv_level = QLCNIC_MGMT_FUNC;
1466         else
1467                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1468
1469         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1470                 if (priv_level == QLCNIC_MGMT_FUNC) {
1471                         adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1472                         err = qlcnic_init_pci_info(adapter);
1473                         if (err)
1474                                 return err;
1475                         /* Set privilege level for other functions */
1476                         qlcnic_set_function_modes(adapter);
1477                         dev_info(&adapter->pdev->dev,
1478                                 "HAL Version: %d, Management function\n",
1479                                  adapter->ahw->fw_hal_version);
1480                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1481                         adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1482                         dev_info(&adapter->pdev->dev,
1483                                 "HAL Version: %d, Privileged function\n",
1484                                  adapter->ahw->fw_hal_version);
1485                 }
1486         } else {
1487                 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1488         }
1489
1490         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1491
1492         return err;
1493 }
1494
1495 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1496 {
1497         struct qlcnic_esw_func_cfg esw_cfg;
1498         struct qlcnic_npar_info *npar;
1499         u8 i;
1500
1501         if (adapter->need_fw_reset)
1502                 return 0;
1503
1504         for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1505                 if (!adapter->npars[i].eswitch_status)
1506                         continue;
1507
1508                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1509                 esw_cfg.pci_func = adapter->npars[i].pci_func;
1510                 esw_cfg.mac_override = BIT_0;
1511                 esw_cfg.promisc_mode = BIT_0;
1512                 if (qlcnic_82xx_check(adapter)) {
1513                         esw_cfg.offload_flags = BIT_0;
1514                         if (QLCNIC_IS_TSO_CAPABLE(adapter))
1515                                 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1516                 }
1517                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1518                         return -EIO;
1519                 npar = &adapter->npars[i];
1520                 npar->pvid = esw_cfg.vlan_id;
1521                 npar->mac_override = esw_cfg.mac_override;
1522                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1523                 npar->discard_tagged = esw_cfg.discard_tagged;
1524                 npar->promisc_mode = esw_cfg.promisc_mode;
1525                 npar->offload_flags = esw_cfg.offload_flags;
1526         }
1527
1528         return 0;
1529 }
1530
1531
1532 static int
1533 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1534                         struct qlcnic_npar_info *npar, int pci_func)
1535 {
1536         struct qlcnic_esw_func_cfg esw_cfg;
1537         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1538         esw_cfg.pci_func = pci_func;
1539         esw_cfg.vlan_id = npar->pvid;
1540         esw_cfg.mac_override = npar->mac_override;
1541         esw_cfg.discard_tagged = npar->discard_tagged;
1542         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1543         esw_cfg.offload_flags = npar->offload_flags;
1544         esw_cfg.promisc_mode = npar->promisc_mode;
1545         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1546                 return -EIO;
1547
1548         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1549         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1550                 return -EIO;
1551
1552         return 0;
1553 }
1554
1555 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1556 {
1557         int i, err;
1558         struct qlcnic_npar_info *npar;
1559         struct qlcnic_info nic_info;
1560         u8 pci_func;
1561
1562         if (qlcnic_82xx_check(adapter))
1563                 if (!adapter->need_fw_reset)
1564                         return 0;
1565
1566         /* Set the NPAR config data after FW reset */
1567         for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1568                 npar = &adapter->npars[i];
1569                 pci_func = npar->pci_func;
1570                 if (!adapter->npars[i].eswitch_status)
1571                         continue;
1572
1573                 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1574                 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1575                 if (err)
1576                         return err;
1577                 nic_info.min_tx_bw = npar->min_bw;
1578                 nic_info.max_tx_bw = npar->max_bw;
1579                 err = qlcnic_set_nic_info(adapter, &nic_info);
1580                 if (err)
1581                         return err;
1582
1583                 if (npar->enable_pm) {
1584                         err = qlcnic_config_port_mirroring(adapter,
1585                                                            npar->dest_npar, 1,
1586                                                            pci_func);
1587                         if (err)
1588                                 return err;
1589                 }
1590                 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1591                 if (err)
1592                         return err;
1593         }
1594         return 0;
1595 }
1596
1597 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1598 {
1599         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1600         u32 npar_state;
1601
1602         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1603                 return 0;
1604
1605         npar_state = QLC_SHARED_REG_RD32(adapter,
1606                                          QLCNIC_CRB_DEV_NPAR_STATE);
1607         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1608                 msleep(1000);
1609                 npar_state = QLC_SHARED_REG_RD32(adapter,
1610                                                  QLCNIC_CRB_DEV_NPAR_STATE);
1611         }
1612         if (!npar_opt_timeo) {
1613                 dev_err(&adapter->pdev->dev,
1614                         "Waiting for NPAR state to operational timeout\n");
1615                 return -EIO;
1616         }
1617         return 0;
1618 }
1619
1620 static int
1621 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1622 {
1623         int err;
1624
1625         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1626             adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1627                 return 0;
1628
1629         err = qlcnic_set_default_offload_settings(adapter);
1630         if (err)
1631                 return err;
1632
1633         err = qlcnic_reset_npar_config(adapter);
1634         if (err)
1635                 return err;
1636
1637         qlcnic_dev_set_npar_ready(adapter);
1638
1639         return err;
1640 }
1641
1642 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1643 {
1644         int err;
1645
1646         err = qlcnic_can_start_firmware(adapter);
1647         if (err < 0)
1648                 return err;
1649         else if (!err)
1650                 goto check_fw_status;
1651
1652         if (qlcnic_load_fw_file)
1653                 qlcnic_request_firmware(adapter);
1654         else {
1655                 err = qlcnic_check_flash_fw_ver(adapter);
1656                 if (err)
1657                         goto err_out;
1658
1659                 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1660         }
1661
1662         err = qlcnic_need_fw_reset(adapter);
1663         if (err == 0)
1664                 goto check_fw_status;
1665
1666         err = qlcnic_pinit_from_rom(adapter);
1667         if (err)
1668                 goto err_out;
1669
1670         err = qlcnic_load_firmware(adapter);
1671         if (err)
1672                 goto err_out;
1673
1674         qlcnic_release_firmware(adapter);
1675         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1676
1677 check_fw_status:
1678         err = qlcnic_check_fw_status(adapter);
1679         if (err)
1680                 goto err_out;
1681
1682         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1683         qlcnic_idc_debug_info(adapter, 1);
1684         err = qlcnic_check_eswitch_mode(adapter);
1685         if (err) {
1686                 dev_err(&adapter->pdev->dev,
1687                         "Memory allocation failed for eswitch\n");
1688                 goto err_out;
1689         }
1690         err = qlcnic_set_mgmt_operations(adapter);
1691         if (err)
1692                 goto err_out;
1693
1694         qlcnic_check_options(adapter);
1695         adapter->need_fw_reset = 0;
1696
1697         qlcnic_release_firmware(adapter);
1698         return 0;
1699
1700 err_out:
1701         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1702         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1703
1704         qlcnic_release_firmware(adapter);
1705         return err;
1706 }
1707
1708 static int
1709 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1710 {
1711         irq_handler_t handler;
1712         struct qlcnic_host_sds_ring *sds_ring;
1713         struct qlcnic_host_tx_ring *tx_ring;
1714         int err, ring, num_sds_rings;
1715
1716         unsigned long flags = 0;
1717         struct net_device *netdev = adapter->netdev;
1718         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1719
1720         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1721                 if (qlcnic_82xx_check(adapter))
1722                         handler = qlcnic_tmp_intr;
1723                 else
1724                         handler = qlcnic_83xx_tmp_intr;
1725                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1726                         flags |= IRQF_SHARED;
1727
1728         } else {
1729                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1730                         handler = qlcnic_msix_intr;
1731                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1732                         handler = qlcnic_msi_intr;
1733                 else {
1734                         flags |= IRQF_SHARED;
1735                         if (qlcnic_82xx_check(adapter))
1736                                 handler = qlcnic_intr;
1737                         else
1738                                 handler = qlcnic_83xx_intr;
1739                 }
1740         }
1741         adapter->irq = netdev->irq;
1742
1743         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1744                 if (qlcnic_82xx_check(adapter) ||
1745                     (qlcnic_83xx_check(adapter) &&
1746                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1747                         num_sds_rings = adapter->drv_sds_rings;
1748                         for (ring = 0; ring < num_sds_rings; ring++) {
1749                                 sds_ring = &recv_ctx->sds_rings[ring];
1750                                 if (qlcnic_82xx_check(adapter) &&
1751                                     !qlcnic_check_multi_tx(adapter) &&
1752                                     (ring == (num_sds_rings - 1))) {
1753                                         if (!(adapter->flags &
1754                                               QLCNIC_MSIX_ENABLED))
1755                                                 snprintf(sds_ring->name,
1756                                                          sizeof(sds_ring->name),
1757                                                          "qlcnic");
1758                                         else
1759                                                 snprintf(sds_ring->name,
1760                                                          sizeof(sds_ring->name),
1761                                                          "%s-tx-0-rx-%d",
1762                                                          netdev->name, ring);
1763                                 } else {
1764                                         snprintf(sds_ring->name,
1765                                                  sizeof(sds_ring->name),
1766                                                  "%s-rx-%d",
1767                                                  netdev->name, ring);
1768                                 }
1769                                 err = request_irq(sds_ring->irq, handler, flags,
1770                                                   sds_ring->name, sds_ring);
1771                                 if (err)
1772                                         return err;
1773                         }
1774                 }
1775                 if ((qlcnic_82xx_check(adapter) &&
1776                      qlcnic_check_multi_tx(adapter)) ||
1777                     (qlcnic_83xx_check(adapter) &&
1778                      (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1779                      !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
1780                         handler = qlcnic_msix_tx_intr;
1781                         for (ring = 0; ring < adapter->drv_tx_rings;
1782                              ring++) {
1783                                 tx_ring = &adapter->tx_ring[ring];
1784                                 snprintf(tx_ring->name, sizeof(tx_ring->name),
1785                                          "%s-tx-%d", netdev->name, ring);
1786                                 err = request_irq(tx_ring->irq, handler, flags,
1787                                                   tx_ring->name, tx_ring);
1788                                 if (err)
1789                                         return err;
1790                         }
1791                 }
1792         }
1793         return 0;
1794 }
1795
1796 static void
1797 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1798 {
1799         int ring;
1800         struct qlcnic_host_sds_ring *sds_ring;
1801         struct qlcnic_host_tx_ring *tx_ring;
1802
1803         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1804
1805         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1806                 if (qlcnic_82xx_check(adapter) ||
1807                     (qlcnic_83xx_check(adapter) &&
1808                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1809                         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1810                                 sds_ring = &recv_ctx->sds_rings[ring];
1811                                 free_irq(sds_ring->irq, sds_ring);
1812                         }
1813                 }
1814                 if ((qlcnic_83xx_check(adapter) &&
1815                      !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
1816                     (qlcnic_82xx_check(adapter) &&
1817                      qlcnic_check_multi_tx(adapter))) {
1818                         for (ring = 0; ring < adapter->drv_tx_rings;
1819                              ring++) {
1820                                 tx_ring = &adapter->tx_ring[ring];
1821                                 if (tx_ring->irq)
1822                                         free_irq(tx_ring->irq, tx_ring);
1823                         }
1824                 }
1825         }
1826 }
1827
1828 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1829 {
1830         u32 capab = 0;
1831
1832         if (qlcnic_82xx_check(adapter)) {
1833                 if (adapter->ahw->extra_capability[0] &
1834                     QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1835                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1836         } else {
1837                 capab = adapter->ahw->capabilities;
1838                 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1839                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1840         }
1841 }
1842
1843 static int qlcnic_config_def_intr_coalesce(struct qlcnic_adapter *adapter)
1844 {
1845         struct qlcnic_hardware_context *ahw = adapter->ahw;
1846         int err;
1847
1848         /* Initialize interrupt coalesce parameters */
1849         ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1850
1851         if (qlcnic_83xx_check(adapter)) {
1852                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
1853                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1854                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1855                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1856                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1857
1858                 err = qlcnic_83xx_set_rx_tx_intr_coal(adapter);
1859         } else {
1860                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1861                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1862                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1863
1864                 err = qlcnic_82xx_set_rx_coalesce(adapter);
1865         }
1866
1867         return err;
1868 }
1869
1870 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1871 {
1872         int ring;
1873         struct qlcnic_host_rds_ring *rds_ring;
1874
1875         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1876                 return -EIO;
1877
1878         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1879                 return 0;
1880
1881         if (qlcnic_set_eswitch_port_config(adapter))
1882                 return -EIO;
1883
1884         qlcnic_get_lro_mss_capability(adapter);
1885
1886         if (qlcnic_fw_create_ctx(adapter))
1887                 return -EIO;
1888
1889         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1890                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1891                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1892         }
1893
1894         qlcnic_set_multi(netdev);
1895         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1896
1897         adapter->ahw->linkup = 0;
1898
1899         if (adapter->drv_sds_rings > 1)
1900                 qlcnic_config_rss(adapter, 1);
1901
1902         qlcnic_config_def_intr_coalesce(adapter);
1903
1904         if (netdev->features & NETIF_F_LRO)
1905                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1906
1907         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1908         qlcnic_napi_enable(adapter);
1909
1910         qlcnic_linkevent_request(adapter, 1);
1911
1912         adapter->ahw->reset_context = 0;
1913         netif_tx_start_all_queues(netdev);
1914         return 0;
1915 }
1916
1917 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1918 {
1919         int err = 0;
1920
1921         rtnl_lock();
1922         if (netif_running(netdev))
1923                 err = __qlcnic_up(adapter, netdev);
1924         rtnl_unlock();
1925
1926         return err;
1927 }
1928
1929 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1930 {
1931         int ring;
1932
1933         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1934                 return;
1935
1936         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1937                 return;
1938
1939         smp_mb();
1940         netif_carrier_off(netdev);
1941         adapter->ahw->linkup = 0;
1942         netif_tx_disable(netdev);
1943
1944         qlcnic_free_mac_list(adapter);
1945
1946         if (adapter->fhash.fnum)
1947                 qlcnic_delete_lb_filters(adapter);
1948
1949         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1950         if (qlcnic_sriov_vf_check(adapter))
1951                 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1952
1953         qlcnic_napi_disable(adapter);
1954
1955         qlcnic_fw_destroy_ctx(adapter);
1956         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1957
1958         qlcnic_reset_rx_buffers_list(adapter);
1959
1960         for (ring = 0; ring < adapter->drv_tx_rings; ring++)
1961                 qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
1962 }
1963
1964 /* Usage: During suspend and firmware recovery module */
1965
1966 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1967 {
1968         rtnl_lock();
1969         if (netif_running(netdev))
1970                 __qlcnic_down(adapter, netdev);
1971         rtnl_unlock();
1972
1973 }
1974
1975 int
1976 qlcnic_attach(struct qlcnic_adapter *adapter)
1977 {
1978         struct net_device *netdev = adapter->netdev;
1979         struct pci_dev *pdev = adapter->pdev;
1980         int err;
1981
1982         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1983                 return 0;
1984
1985         err = qlcnic_napi_add(adapter, netdev);
1986         if (err)
1987                 return err;
1988
1989         err = qlcnic_alloc_sw_resources(adapter);
1990         if (err) {
1991                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1992                 goto err_out_napi_del;
1993         }
1994
1995         err = qlcnic_alloc_hw_resources(adapter);
1996         if (err) {
1997                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1998                 goto err_out_free_sw;
1999         }
2000
2001         err = qlcnic_request_irq(adapter);
2002         if (err) {
2003                 dev_err(&pdev->dev, "failed to setup interrupt\n");
2004                 goto err_out_free_hw;
2005         }
2006
2007         qlcnic_create_sysfs_entries(adapter);
2008
2009 #ifdef CONFIG_QLCNIC_VXLAN
2010         if (qlcnic_encap_rx_offload(adapter))
2011                 vxlan_get_rx_port(netdev);
2012 #endif
2013
2014         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
2015         return 0;
2016
2017 err_out_free_hw:
2018         qlcnic_free_hw_resources(adapter);
2019 err_out_free_sw:
2020         qlcnic_free_sw_resources(adapter);
2021 err_out_napi_del:
2022         qlcnic_napi_del(adapter);
2023         return err;
2024 }
2025
2026 void qlcnic_detach(struct qlcnic_adapter *adapter)
2027 {
2028         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2029                 return;
2030
2031         qlcnic_remove_sysfs_entries(adapter);
2032
2033         qlcnic_free_hw_resources(adapter);
2034         qlcnic_release_rx_buffers(adapter);
2035         qlcnic_free_irq(adapter);
2036         qlcnic_napi_del(adapter);
2037         qlcnic_free_sw_resources(adapter);
2038
2039         adapter->is_up = 0;
2040 }
2041
2042 void qlcnic_diag_free_res(struct net_device *netdev, int drv_sds_rings)
2043 {
2044         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2045         struct qlcnic_host_sds_ring *sds_ring;
2046         int drv_tx_rings = adapter->drv_tx_rings;
2047         int ring;
2048
2049         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
2050         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2051                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2052                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
2053                         qlcnic_disable_sds_intr(adapter, sds_ring);
2054                 }
2055         }
2056
2057         qlcnic_fw_destroy_ctx(adapter);
2058
2059         qlcnic_detach(adapter);
2060
2061         adapter->ahw->diag_test = 0;
2062         adapter->drv_sds_rings = drv_sds_rings;
2063         adapter->drv_tx_rings = drv_tx_rings;
2064
2065         if (qlcnic_attach(adapter))
2066                 goto out;
2067
2068         if (netif_running(netdev))
2069                 __qlcnic_up(adapter, netdev);
2070 out:
2071         netif_device_attach(netdev);
2072 }
2073
2074 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
2075 {
2076         struct qlcnic_hardware_context *ahw = adapter->ahw;
2077         int err = 0;
2078
2079         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
2080                                 GFP_KERNEL);
2081         if (!adapter->recv_ctx) {
2082                 err = -ENOMEM;
2083                 goto err_out;
2084         }
2085
2086         if (qlcnic_83xx_check(adapter)) {
2087                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
2088                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
2089                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
2090                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2091                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2092         } else {
2093                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
2094                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2095                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2096         }
2097
2098         /* clear stats */
2099         memset(&adapter->stats, 0, sizeof(adapter->stats));
2100 err_out:
2101         return err;
2102 }
2103
2104 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
2105 {
2106         struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
2107
2108         kfree(adapter->recv_ctx);
2109         adapter->recv_ctx = NULL;
2110
2111         if (fw_dump->tmpl_hdr) {
2112                 vfree(fw_dump->tmpl_hdr);
2113                 fw_dump->tmpl_hdr = NULL;
2114         }
2115
2116         if (fw_dump->dma_buffer) {
2117                 dma_free_coherent(&adapter->pdev->dev, QLC_PEX_DMA_READ_SIZE,
2118                                   fw_dump->dma_buffer, fw_dump->phys_addr);
2119                 fw_dump->dma_buffer = NULL;
2120         }
2121
2122         kfree(adapter->ahw->reset.buff);
2123         adapter->ahw->fw_dump.tmpl_hdr = NULL;
2124 }
2125
2126 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
2127 {
2128         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2129         struct qlcnic_host_sds_ring *sds_ring;
2130         struct qlcnic_host_rds_ring *rds_ring;
2131         int ring;
2132         int ret;
2133
2134         netif_device_detach(netdev);
2135
2136         if (netif_running(netdev))
2137                 __qlcnic_down(adapter, netdev);
2138
2139         qlcnic_detach(adapter);
2140
2141         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
2142         adapter->ahw->diag_test = test;
2143         adapter->ahw->linkup = 0;
2144
2145         ret = qlcnic_attach(adapter);
2146         if (ret) {
2147                 netif_device_attach(netdev);
2148                 return ret;
2149         }
2150
2151         ret = qlcnic_fw_create_ctx(adapter);
2152         if (ret) {
2153                 qlcnic_detach(adapter);
2154                 netif_device_attach(netdev);
2155                 return ret;
2156         }
2157
2158         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
2159                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
2160                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
2161         }
2162
2163         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2164                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2165                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
2166                         qlcnic_enable_sds_intr(adapter, sds_ring);
2167                 }
2168         }
2169
2170         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
2171                 adapter->ahw->loopback_state = 0;
2172                 qlcnic_linkevent_request(adapter, 1);
2173         }
2174
2175         set_bit(__QLCNIC_DEV_UP, &adapter->state);
2176
2177         return 0;
2178 }
2179
2180 /* Reset context in hardware only */
2181 static int
2182 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
2183 {
2184         struct net_device *netdev = adapter->netdev;
2185
2186         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2187                 return -EBUSY;
2188
2189         netif_device_detach(netdev);
2190
2191         qlcnic_down(adapter, netdev);
2192
2193         qlcnic_up(adapter, netdev);
2194
2195         netif_device_attach(netdev);
2196
2197         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2198         netdev_info(adapter->netdev, "%s: soft reset complete\n", __func__);
2199         return 0;
2200 }
2201
2202 int
2203 qlcnic_reset_context(struct qlcnic_adapter *adapter)
2204 {
2205         int err = 0;
2206         struct net_device *netdev = adapter->netdev;
2207
2208         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2209                 return -EBUSY;
2210
2211         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
2212
2213                 netif_device_detach(netdev);
2214
2215                 if (netif_running(netdev))
2216                         __qlcnic_down(adapter, netdev);
2217
2218                 qlcnic_detach(adapter);
2219
2220                 if (netif_running(netdev)) {
2221                         err = qlcnic_attach(adapter);
2222                         if (!err) {
2223                                 __qlcnic_up(adapter, netdev);
2224                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2225                         }
2226                 }
2227
2228                 netif_device_attach(netdev);
2229         }
2230
2231         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2232         return err;
2233 }
2234
2235 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
2236 {
2237         struct qlcnic_hardware_context *ahw = adapter->ahw;
2238         u16 act_pci_fn = ahw->total_nic_func;
2239         u16 count;
2240
2241         ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
2242         if (act_pci_fn <= 2)
2243                 count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
2244                          act_pci_fn;
2245         else
2246                 count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
2247                          act_pci_fn;
2248         ahw->max_uc_count = count;
2249 }
2250
2251 static int qlcnic_set_real_num_queues(struct qlcnic_adapter *adapter,
2252                                       u8 tx_queues, u8 rx_queues)
2253 {
2254         struct net_device *netdev = adapter->netdev;
2255         int err = 0;
2256
2257         if (tx_queues) {
2258                 err = netif_set_real_num_tx_queues(netdev, tx_queues);
2259                 if (err) {
2260                         netdev_err(netdev, "failed to set %d Tx queues\n",
2261                                    tx_queues);
2262                         return err;
2263                 }
2264         }
2265
2266         if (rx_queues) {
2267                 err = netif_set_real_num_rx_queues(netdev, rx_queues);
2268                 if (err)
2269                         netdev_err(netdev, "failed to set %d Rx queues\n",
2270                                    rx_queues);
2271         }
2272
2273         return err;
2274 }
2275
2276 int
2277 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
2278                     int pci_using_dac)
2279 {
2280         int err;
2281         struct pci_dev *pdev = adapter->pdev;
2282
2283         adapter->rx_csum = 1;
2284         adapter->ahw->mc_enabled = 0;
2285         qlcnic_set_mac_filter_count(adapter);
2286
2287         netdev->netdev_ops         = &qlcnic_netdev_ops;
2288         netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
2289
2290         qlcnic_change_mtu(netdev, netdev->mtu);
2291
2292         netdev->ethtool_ops = (qlcnic_sriov_vf_check(adapter)) ?
2293                 &qlcnic_sriov_vf_ethtool_ops : &qlcnic_ethtool_ops;
2294
2295         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2296                              NETIF_F_IPV6_CSUM | NETIF_F_GRO |
2297                              NETIF_F_HW_VLAN_CTAG_RX);
2298         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
2299                                   NETIF_F_IPV6_CSUM);
2300
2301         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
2302                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
2303                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
2304         }
2305
2306         if (pci_using_dac) {
2307                 netdev->features |= NETIF_F_HIGHDMA;
2308                 netdev->vlan_features |= NETIF_F_HIGHDMA;
2309         }
2310
2311         if (qlcnic_vlan_tx_check(adapter))
2312                 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
2313
2314         if (qlcnic_sriov_vf_check(adapter))
2315                 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2316
2317         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
2318                 netdev->features |= NETIF_F_LRO;
2319
2320         if (qlcnic_encap_tx_offload(adapter)) {
2321                 netdev->features |= NETIF_F_GSO_UDP_TUNNEL;
2322
2323                 /* encapsulation Tx offload supported by Adapter */
2324                 netdev->hw_enc_features = NETIF_F_IP_CSUM        |
2325                                           NETIF_F_GSO_UDP_TUNNEL |
2326                                           NETIF_F_TSO            |
2327                                           NETIF_F_TSO6;
2328         }
2329
2330         if (qlcnic_encap_rx_offload(adapter))
2331                 netdev->hw_enc_features |= NETIF_F_RXCSUM;
2332
2333         netdev->hw_features = netdev->features;
2334         netdev->priv_flags |= IFF_UNICAST_FLT;
2335         netdev->irq = adapter->msix_entries[0].vector;
2336
2337         err = qlcnic_set_real_num_queues(adapter, adapter->drv_tx_rings,
2338                                          adapter->drv_sds_rings);
2339         if (err)
2340                 return err;
2341
2342         qlcnic_dcb_init_dcbnl_ops(adapter->dcb);
2343
2344         err = register_netdev(netdev);
2345         if (err) {
2346                 dev_err(&pdev->dev, "failed to register net device\n");
2347                 return err;
2348         }
2349
2350         return 0;
2351 }
2352
2353 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
2354 {
2355         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
2356                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
2357                 *pci_using_dac = 1;
2358         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
2359                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
2360                 *pci_using_dac = 0;
2361         else {
2362                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
2363                 return -EIO;
2364         }
2365
2366         return 0;
2367 }
2368
2369 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
2370 {
2371         int ring;
2372         struct qlcnic_host_tx_ring *tx_ring;
2373
2374         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2375                 tx_ring = &adapter->tx_ring[ring];
2376                 if (tx_ring) {
2377                         vfree(tx_ring->cmd_buf_arr);
2378                         tx_ring->cmd_buf_arr = NULL;
2379                 }
2380         }
2381         kfree(adapter->tx_ring);
2382 }
2383
2384 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
2385                           struct net_device *netdev)
2386 {
2387         int ring, vector, index;
2388         struct qlcnic_host_tx_ring *tx_ring;
2389         struct qlcnic_cmd_buffer *cmd_buf_arr;
2390
2391         tx_ring = kcalloc(adapter->drv_tx_rings,
2392                           sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
2393         if (tx_ring == NULL)
2394                 return -ENOMEM;
2395
2396         adapter->tx_ring = tx_ring;
2397
2398         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2399                 tx_ring = &adapter->tx_ring[ring];
2400                 tx_ring->num_desc = adapter->num_txd;
2401                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
2402                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
2403                 if (cmd_buf_arr == NULL) {
2404                         qlcnic_free_tx_rings(adapter);
2405                         return -ENOMEM;
2406                 }
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_QLE8C30:
2496         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2497                 qlcnic_sriov_vf_register_map(ahw);
2498                 break;
2499         default:
2500                 goto err_out_free_hw_res;
2501         }
2502
2503         err = qlcnic_setup_pci_map(pdev, ahw);
2504         if (err)
2505                 goto err_out_free_hw_res;
2506
2507         netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
2508                                    QLCNIC_MAX_TX_RINGS);
2509         if (!netdev) {
2510                 err = -ENOMEM;
2511                 goto err_out_iounmap;
2512         }
2513
2514         SET_NETDEV_DEV(netdev, &pdev->dev);
2515
2516         adapter = netdev_priv(netdev);
2517         adapter->netdev  = netdev;
2518         adapter->pdev    = pdev;
2519         adapter->ahw = ahw;
2520
2521         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2522         if (adapter->qlcnic_wq == NULL) {
2523                 err = -ENOMEM;
2524                 dev_err(&pdev->dev, "Failed to create workqueue\n");
2525                 goto err_out_free_netdev;
2526         }
2527
2528         err = qlcnic_alloc_adapter_resources(adapter);
2529         if (err)
2530                 goto err_out_free_wq;
2531
2532         adapter->dev_rst_time = jiffies;
2533         ahw->revision_id = pdev->revision;
2534         ahw->max_vnic_func = qlcnic_get_vnic_func_count(adapter);
2535         if (qlcnic_mac_learn == FDB_MAC_LEARN)
2536                 adapter->fdb_mac_learn = true;
2537         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2538                 adapter->drv_mac_learn = true;
2539
2540         rwlock_init(&adapter->ahw->crb_lock);
2541         mutex_init(&adapter->ahw->mem_lock);
2542
2543         INIT_LIST_HEAD(&adapter->mac_list);
2544
2545         qlcnic_register_dcb(adapter);
2546
2547         if (qlcnic_82xx_check(adapter)) {
2548                 qlcnic_check_vf(adapter, ent);
2549                 adapter->portnum = adapter->ahw->pci_func;
2550                 qlcnic_reset_api_lock(adapter);
2551                 err = qlcnic_start_firmware(adapter);
2552                 if (err) {
2553                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
2554                                 "\t\tIf reboot doesn't help, try flashing the card\n");
2555                         goto err_out_maintenance_mode;
2556                 }
2557
2558                 /* compute and set default and max tx/sds rings */
2559                 if (adapter->ahw->msix_supported) {
2560                         if (qlcnic_check_multi_tx_capability(adapter) == 1)
2561                                 qlcnic_set_tx_ring_count(adapter,
2562                                                          QLCNIC_SINGLE_RING);
2563                         else
2564                                 qlcnic_set_tx_ring_count(adapter,
2565                                                          QLCNIC_DEF_TX_RINGS);
2566                         qlcnic_set_sds_ring_count(adapter,
2567                                                   QLCNIC_DEF_SDS_RINGS);
2568                 } else {
2569                         qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
2570                         qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
2571                 }
2572
2573                 err = qlcnic_setup_idc_param(adapter);
2574                 if (err)
2575                         goto err_out_free_hw;
2576
2577                 adapter->flags |= QLCNIC_NEED_FLR;
2578
2579         } else if (qlcnic_83xx_check(adapter)) {
2580                 qlcnic_83xx_check_vf(adapter, ent);
2581                 adapter->portnum = adapter->ahw->pci_func;
2582                 err = qlcnic_83xx_init(adapter, pci_using_dac);
2583                 if (err) {
2584                         switch (err) {
2585                         case -ENOTRECOVERABLE:
2586                                 dev_err(&pdev->dev, "Adapter initialization failed due to a faulty hardware\n");
2587                                 dev_err(&pdev->dev, "Please replace the adapter with new one and return the faulty adapter for repair\n");
2588                                 goto err_out_free_hw;
2589                         case -ENOMEM:
2590                                 dev_err(&pdev->dev, "Adapter initialization failed. Please reboot\n");
2591                                 goto err_out_free_hw;
2592                         case -EOPNOTSUPP:
2593                                 dev_err(&pdev->dev, "Adapter initialization failed\n");
2594                                 goto err_out_free_hw;
2595                         default:
2596                                 dev_err(&pdev->dev, "Adapter initialization failed. Driver will load in maintenance mode to recover the adapter using the application\n");
2597                                 goto err_out_maintenance_mode;
2598                         }
2599                 }
2600
2601                 if (qlcnic_sriov_vf_check(adapter))
2602                         return 0;
2603         } else {
2604                 dev_err(&pdev->dev,
2605                         "%s: failed. Please Reboot\n", __func__);
2606                 err = -ENODEV;
2607                 goto err_out_free_hw;
2608         }
2609
2610         if (qlcnic_read_mac_addr(adapter))
2611                 dev_warn(&pdev->dev, "failed to read mac addr\n");
2612
2613         qlcnic_read_phys_port_id(adapter);
2614
2615         if (adapter->portnum == 0) {
2616                 qlcnic_get_board_name(adapter, board_name);
2617
2618                 pr_info("%s: %s Board Chip rev 0x%x\n",
2619                         module_name(THIS_MODULE),
2620                         board_name, adapter->ahw->revision_id);
2621         }
2622
2623         if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2624             !!qlcnic_use_msi)
2625                 dev_warn(&pdev->dev,
2626                          "Device does not support MSI interrupts\n");
2627
2628         if (qlcnic_82xx_check(adapter)) {
2629                 qlcnic_dcb_enable(adapter->dcb);
2630                 qlcnic_dcb_get_info(adapter->dcb);
2631                 err = qlcnic_setup_intr(adapter);
2632
2633                 if (err) {
2634                         dev_err(&pdev->dev, "Failed to setup interrupt\n");
2635                         goto err_out_disable_msi;
2636                 }
2637         }
2638
2639         err = qlcnic_get_act_pci_func(adapter);
2640         if (err)
2641                 goto err_out_disable_mbx_intr;
2642
2643         if (adapter->portnum == 0)
2644                 qlcnic_set_drv_version(adapter);
2645
2646         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2647         if (err)
2648                 goto err_out_disable_mbx_intr;
2649
2650         pci_set_drvdata(pdev, adapter);
2651
2652         if (qlcnic_82xx_check(adapter))
2653                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2654                                      FW_POLL_DELAY);
2655
2656         switch (adapter->ahw->port_type) {
2657         case QLCNIC_GBE:
2658                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2659                                 adapter->netdev->name);
2660                 break;
2661         case QLCNIC_XGBE:
2662                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2663                                 adapter->netdev->name);
2664                 break;
2665         }
2666
2667         if (adapter->drv_mac_learn)
2668                 qlcnic_alloc_lb_filters_mem(adapter);
2669
2670         qlcnic_add_sysfs(adapter);
2671         qlcnic_register_hwmon_dev(adapter);
2672         return 0;
2673
2674 err_out_disable_mbx_intr:
2675         if (qlcnic_83xx_check(adapter))
2676                 qlcnic_83xx_free_mbx_intr(adapter);
2677
2678 err_out_disable_msi:
2679         qlcnic_teardown_intr(adapter);
2680         qlcnic_cancel_idc_work(adapter);
2681         qlcnic_clr_all_drv_state(adapter, 0);
2682
2683 err_out_free_hw:
2684         qlcnic_free_adapter_resources(adapter);
2685
2686 err_out_free_wq:
2687         destroy_workqueue(adapter->qlcnic_wq);
2688
2689 err_out_free_netdev:
2690         free_netdev(netdev);
2691
2692 err_out_iounmap:
2693         qlcnic_cleanup_pci_map(ahw);
2694
2695 err_out_free_hw_res:
2696         kfree(ahw);
2697
2698 err_out_free_res:
2699         pci_release_regions(pdev);
2700
2701 err_out_disable_pdev:
2702         pci_disable_device(pdev);
2703         return err;
2704
2705 err_out_maintenance_mode:
2706         set_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state);
2707         netdev->netdev_ops = &qlcnic_netdev_failed_ops;
2708         netdev->ethtool_ops = &qlcnic_ethtool_failed_ops;
2709         ahw->port_type = QLCNIC_XGBE;
2710
2711         if (qlcnic_83xx_check(adapter))
2712                 adapter->tgt_status_reg = NULL;
2713         else
2714                 ahw->board_type = QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS;
2715
2716         err = register_netdev(netdev);
2717
2718         if (err) {
2719                 dev_err(&pdev->dev, "Failed to register net device\n");
2720                 qlcnic_clr_all_drv_state(adapter, 0);
2721                 goto err_out_free_hw;
2722         }
2723
2724         pci_set_drvdata(pdev, adapter);
2725         qlcnic_add_sysfs(adapter);
2726
2727         return 0;
2728 }
2729
2730 static void qlcnic_remove(struct pci_dev *pdev)
2731 {
2732         struct qlcnic_adapter *adapter;
2733         struct net_device *netdev;
2734         struct qlcnic_hardware_context *ahw;
2735
2736         adapter = pci_get_drvdata(pdev);
2737         if (adapter == NULL)
2738                 return;
2739
2740         netdev = adapter->netdev;
2741
2742         qlcnic_cancel_idc_work(adapter);
2743         qlcnic_sriov_pf_disable(adapter);
2744         ahw = adapter->ahw;
2745
2746         unregister_netdev(netdev);
2747         qlcnic_sriov_cleanup(adapter);
2748
2749         if (qlcnic_83xx_check(adapter)) {
2750                 qlcnic_83xx_initialize_nic(adapter, 0);
2751                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2752                 qlcnic_83xx_free_mbx_intr(adapter);
2753                 qlcnic_83xx_detach_mailbox_work(adapter);
2754                 qlcnic_83xx_free_mailbox(ahw->mailbox);
2755                 kfree(ahw->fw_info);
2756         }
2757
2758         qlcnic_dcb_free(adapter->dcb);
2759         qlcnic_detach(adapter);
2760         kfree(adapter->npars);
2761         kfree(adapter->eswitch);
2762
2763         if (qlcnic_82xx_check(adapter))
2764                 qlcnic_clr_all_drv_state(adapter, 0);
2765
2766         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2767
2768         qlcnic_free_lb_filters_mem(adapter);
2769
2770         qlcnic_teardown_intr(adapter);
2771
2772         qlcnic_remove_sysfs(adapter);
2773
2774         qlcnic_unregister_hwmon_dev(adapter);
2775
2776         qlcnic_cleanup_pci_map(adapter->ahw);
2777
2778         qlcnic_release_firmware(adapter);
2779
2780         pci_disable_pcie_error_reporting(pdev);
2781         pci_release_regions(pdev);
2782         pci_disable_device(pdev);
2783
2784         if (adapter->qlcnic_wq) {
2785                 destroy_workqueue(adapter->qlcnic_wq);
2786                 adapter->qlcnic_wq = NULL;
2787         }
2788
2789         qlcnic_free_adapter_resources(adapter);
2790         kfree(ahw);
2791         free_netdev(netdev);
2792 }
2793
2794 static void qlcnic_shutdown(struct pci_dev *pdev)
2795 {
2796         if (__qlcnic_shutdown(pdev))
2797                 return;
2798
2799         pci_disable_device(pdev);
2800 }
2801
2802 #ifdef CONFIG_PM
2803 static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2804 {
2805         int retval;
2806
2807         retval = __qlcnic_shutdown(pdev);
2808         if (retval)
2809                 return retval;
2810
2811         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2812         return 0;
2813 }
2814
2815 static int qlcnic_resume(struct pci_dev *pdev)
2816 {
2817         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2818         int err;
2819
2820         err = pci_enable_device(pdev);
2821         if (err)
2822                 return err;
2823
2824         pci_set_power_state(pdev, PCI_D0);
2825         pci_set_master(pdev);
2826         pci_restore_state(pdev);
2827
2828         return  __qlcnic_resume(adapter);
2829 }
2830 #endif
2831
2832 static int qlcnic_open(struct net_device *netdev)
2833 {
2834         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2835         int err;
2836
2837         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
2838                 netdev_err(netdev, "%s: Device is in non-operational state\n",
2839                            __func__);
2840
2841                 return -EIO;
2842         }
2843
2844         netif_carrier_off(netdev);
2845
2846         err = qlcnic_attach(adapter);
2847         if (err)
2848                 return err;
2849
2850         err = __qlcnic_up(adapter, netdev);
2851         if (err)
2852                 qlcnic_detach(adapter);
2853
2854         return err;
2855 }
2856
2857 /*
2858  * qlcnic_close - Disables a network interface entry point
2859  */
2860 static int qlcnic_close(struct net_device *netdev)
2861 {
2862         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2863
2864         __qlcnic_down(adapter, netdev);
2865
2866         return 0;
2867 }
2868
2869 #define QLCNIC_VF_LB_BUCKET_SIZE 1
2870
2871 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2872 {
2873         void *head;
2874         int i;
2875         struct net_device *netdev = adapter->netdev;
2876         u32 filter_size = 0;
2877         u16 act_pci_func = 0;
2878
2879         if (adapter->fhash.fmax && adapter->fhash.fhead)
2880                 return;
2881
2882         act_pci_func = adapter->ahw->total_nic_func;
2883         spin_lock_init(&adapter->mac_learn_lock);
2884         spin_lock_init(&adapter->rx_mac_learn_lock);
2885
2886         if (qlcnic_sriov_vf_check(adapter)) {
2887                 filter_size = QLCNIC_83XX_SRIOV_VF_MAX_MAC - 1;
2888                 adapter->fhash.fbucket_size = QLCNIC_VF_LB_BUCKET_SIZE;
2889         } else if (qlcnic_82xx_check(adapter)) {
2890                 filter_size = QLCNIC_LB_MAX_FILTERS;
2891                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2892         } else {
2893                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2894                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2895         }
2896
2897         head = kcalloc(adapter->fhash.fbucket_size,
2898                        sizeof(struct hlist_head), GFP_ATOMIC);
2899
2900         if (!head)
2901                 return;
2902
2903         adapter->fhash.fmax = (filter_size / act_pci_func);
2904         adapter->fhash.fhead = head;
2905
2906         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2907                     act_pci_func, adapter->fhash.fmax);
2908
2909         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2910                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2911
2912         adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2913
2914         head = kcalloc(adapter->rx_fhash.fbucket_size,
2915                        sizeof(struct hlist_head), GFP_ATOMIC);
2916
2917         if (!head)
2918                 return;
2919
2920         adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2921         adapter->rx_fhash.fhead = head;
2922
2923         for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2924                 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2925 }
2926
2927 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2928 {
2929         if (adapter->fhash.fmax)
2930                 kfree(adapter->fhash.fhead);
2931
2932         adapter->fhash.fhead = NULL;
2933         adapter->fhash.fmax = 0;
2934
2935         if (adapter->rx_fhash.fmax)
2936                 kfree(adapter->rx_fhash.fhead);
2937
2938         adapter->rx_fhash.fmax = 0;
2939         adapter->rx_fhash.fhead = NULL;
2940 }
2941
2942 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2943 {
2944         struct net_device *netdev = adapter->netdev;
2945         u32 temp_state, temp_val, temp = 0;
2946         int rv = 0;
2947
2948         if (qlcnic_83xx_check(adapter))
2949                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2950
2951         if (qlcnic_82xx_check(adapter))
2952                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2953
2954         temp_state = qlcnic_get_temp_state(temp);
2955         temp_val = qlcnic_get_temp_val(temp);
2956
2957         if (temp_state == QLCNIC_TEMP_PANIC) {
2958                 dev_err(&netdev->dev,
2959                        "Device temperature %d degrees C exceeds"
2960                        " maximum allowed. Hardware has been shut down.\n",
2961                        temp_val);
2962                 rv = 1;
2963         } else if (temp_state == QLCNIC_TEMP_WARN) {
2964                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2965                         dev_err(&netdev->dev,
2966                                "Device temperature %d degrees C "
2967                                "exceeds operating range."
2968                                " Immediate action needed.\n",
2969                                temp_val);
2970                 }
2971         } else {
2972                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2973                         dev_info(&netdev->dev,
2974                                "Device temperature is now %d degrees C"
2975                                " in normal range.\n", temp_val);
2976                 }
2977         }
2978         adapter->ahw->temp = temp_state;
2979         return rv;
2980 }
2981
2982 static inline void dump_tx_ring_desc(struct qlcnic_host_tx_ring *tx_ring)
2983 {
2984         int i;
2985         struct cmd_desc_type0 *tx_desc_info;
2986
2987         for (i = 0; i < tx_ring->num_desc; i++) {
2988                 tx_desc_info = &tx_ring->desc_head[i];
2989                 pr_info("TX Desc: %d\n", i);
2990                 print_hex_dump(KERN_INFO, "TX: ", DUMP_PREFIX_OFFSET, 16, 1,
2991                                &tx_ring->desc_head[i],
2992                                sizeof(struct cmd_desc_type0), true);
2993         }
2994 }
2995
2996 static void qlcnic_dump_rings(struct qlcnic_adapter *adapter)
2997 {
2998         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2999         struct net_device *netdev = adapter->netdev;
3000         struct qlcnic_host_rds_ring *rds_ring;
3001         struct qlcnic_host_sds_ring *sds_ring;
3002         struct qlcnic_host_tx_ring *tx_ring;
3003         int ring;
3004
3005         if (!netdev || !netif_running(netdev))
3006                 return;
3007
3008         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
3009                 rds_ring = &recv_ctx->rds_rings[ring];
3010                 if (!rds_ring)
3011                         continue;
3012                 netdev_info(netdev,
3013                             "rds_ring=%d crb_rcv_producer=%d producer=%u num_desc=%u\n",
3014                              ring, readl(rds_ring->crb_rcv_producer),
3015                              rds_ring->producer, rds_ring->num_desc);
3016         }
3017
3018         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3019                 sds_ring = &(recv_ctx->sds_rings[ring]);
3020                 if (!sds_ring)
3021                         continue;
3022                 netdev_info(netdev,
3023                             "sds_ring=%d crb_sts_consumer=%d consumer=%u crb_intr_mask=%d num_desc=%u\n",
3024                             ring, readl(sds_ring->crb_sts_consumer),
3025                             sds_ring->consumer, readl(sds_ring->crb_intr_mask),
3026                             sds_ring->num_desc);
3027         }
3028
3029         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3030                 tx_ring = &adapter->tx_ring[ring];
3031                 if (!tx_ring)
3032                         continue;
3033                 netdev_info(netdev, "Tx ring=%d Context Id=0x%x\n",
3034                             ring, tx_ring->ctx_id);
3035                 netdev_info(netdev,
3036                             "xmit_finished=%llu, xmit_called=%llu, xmit_on=%llu, xmit_off=%llu\n",
3037                             tx_ring->tx_stats.xmit_finished,
3038                             tx_ring->tx_stats.xmit_called,
3039                             tx_ring->tx_stats.xmit_on,
3040                             tx_ring->tx_stats.xmit_off);
3041
3042                 if (tx_ring->crb_intr_mask)
3043                         netdev_info(netdev, "crb_intr_mask=%d\n",
3044                                     readl(tx_ring->crb_intr_mask));
3045
3046                 netdev_info(netdev,
3047                             "hw_producer=%d, sw_producer=%d sw_consumer=%d, hw_consumer=%d\n",
3048                             readl(tx_ring->crb_cmd_producer),
3049                             tx_ring->producer, tx_ring->sw_consumer,
3050                             le32_to_cpu(*(tx_ring->hw_consumer)));
3051
3052                 netdev_info(netdev, "Total desc=%d, Available desc=%d\n",
3053                             tx_ring->num_desc, qlcnic_tx_avail(tx_ring));
3054
3055                 if (netif_msg_tx_err(adapter->ahw))
3056                         dump_tx_ring_desc(tx_ring);
3057         }
3058
3059 }
3060
3061 static void qlcnic_tx_timeout(struct net_device *netdev)
3062 {
3063         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3064
3065         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3066                 return;
3067
3068         qlcnic_dump_rings(adapter);
3069
3070         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS ||
3071             netif_msg_tx_err(adapter->ahw)) {
3072                 netdev_err(netdev, "Tx timeout, reset the adapter.\n");
3073                 if (qlcnic_82xx_check(adapter))
3074                         adapter->need_fw_reset = 1;
3075                 else if (qlcnic_83xx_check(adapter))
3076                         qlcnic_83xx_idc_request_reset(adapter,
3077                                                       QLCNIC_FORCE_FW_DUMP_KEY);
3078         } else {
3079                 netdev_err(netdev, "Tx timeout, reset adapter context.\n");
3080                 adapter->ahw->reset_context = 1;
3081         }
3082 }
3083
3084 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
3085 {
3086         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3087         struct net_device_stats *stats = &netdev->stats;
3088
3089         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
3090                 qlcnic_update_stats(adapter);
3091
3092         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
3093         stats->tx_packets = adapter->stats.xmitfinished;
3094         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
3095         stats->tx_bytes = adapter->stats.txbytes;
3096         stats->rx_dropped = adapter->stats.rxdropped;
3097         stats->tx_dropped = adapter->stats.txdropped;
3098
3099         return stats;
3100 }
3101
3102 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
3103 {
3104         u32 status;
3105
3106         status = readl(adapter->isr_int_vec);
3107
3108         if (!(status & adapter->ahw->int_vec_bit))
3109                 return IRQ_NONE;
3110
3111         /* check interrupt state machine, to be sure */
3112         status = readl(adapter->crb_int_state_reg);
3113         if (!ISR_LEGACY_INT_TRIGGERED(status))
3114                 return IRQ_NONE;
3115
3116         writel(0xffffffff, adapter->tgt_status_reg);
3117         /* read twice to ensure write is flushed */
3118         readl(adapter->isr_int_vec);
3119         readl(adapter->isr_int_vec);
3120
3121         return IRQ_HANDLED;
3122 }
3123
3124 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
3125 {
3126         struct qlcnic_host_sds_ring *sds_ring = data;
3127         struct qlcnic_adapter *adapter = sds_ring->adapter;
3128
3129         if (adapter->flags & QLCNIC_MSIX_ENABLED)
3130                 goto done;
3131         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
3132                 writel(0xffffffff, adapter->tgt_status_reg);
3133                 goto done;
3134         }
3135
3136         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3137                 return IRQ_NONE;
3138
3139 done:
3140         adapter->ahw->diag_cnt++;
3141         qlcnic_enable_sds_intr(adapter, sds_ring);
3142         return IRQ_HANDLED;
3143 }
3144
3145 static irqreturn_t qlcnic_intr(int irq, void *data)
3146 {
3147         struct qlcnic_host_sds_ring *sds_ring = data;
3148         struct qlcnic_adapter *adapter = sds_ring->adapter;
3149
3150         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3151                 return IRQ_NONE;
3152
3153         napi_schedule(&sds_ring->napi);
3154
3155         return IRQ_HANDLED;
3156 }
3157
3158 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
3159 {
3160         struct qlcnic_host_sds_ring *sds_ring = data;
3161         struct qlcnic_adapter *adapter = sds_ring->adapter;
3162
3163         /* clear interrupt */
3164         writel(0xffffffff, adapter->tgt_status_reg);
3165
3166         napi_schedule(&sds_ring->napi);
3167         return IRQ_HANDLED;
3168 }
3169
3170 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
3171 {
3172         struct qlcnic_host_sds_ring *sds_ring = data;
3173
3174         napi_schedule(&sds_ring->napi);
3175         return IRQ_HANDLED;
3176 }
3177
3178 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
3179 {
3180         struct qlcnic_host_tx_ring *tx_ring = data;
3181
3182         napi_schedule(&tx_ring->napi);
3183         return IRQ_HANDLED;
3184 }
3185
3186 #ifdef CONFIG_NET_POLL_CONTROLLER
3187 static void qlcnic_poll_controller(struct net_device *netdev)
3188 {
3189         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3190         struct qlcnic_host_sds_ring *sds_ring;
3191         struct qlcnic_recv_context *recv_ctx;
3192         struct qlcnic_host_tx_ring *tx_ring;
3193         int ring;
3194
3195         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3196                 return;
3197
3198         recv_ctx = adapter->recv_ctx;
3199
3200         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3201                 sds_ring = &recv_ctx->sds_rings[ring];
3202                 qlcnic_disable_sds_intr(adapter, sds_ring);
3203                 napi_schedule(&sds_ring->napi);
3204         }
3205
3206         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
3207                 /* Only Multi-Tx queue capable devices need to
3208                  * schedule NAPI for TX rings
3209                  */
3210                 if ((qlcnic_83xx_check(adapter) &&
3211                      (adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
3212                     (qlcnic_82xx_check(adapter) &&
3213                      !qlcnic_check_multi_tx(adapter)))
3214                         return;
3215
3216                 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3217                         tx_ring = &adapter->tx_ring[ring];
3218                         qlcnic_disable_tx_intr(adapter, tx_ring);
3219                         napi_schedule(&tx_ring->napi);
3220                 }
3221         }
3222 }
3223 #endif
3224
3225 static void
3226 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
3227 {
3228         u32 val;
3229
3230         val = adapter->portnum & 0xf;
3231         val |= encoding << 7;
3232         val |= (jiffies - adapter->dev_rst_time) << 8;
3233
3234         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
3235         adapter->dev_rst_time = jiffies;
3236 }
3237
3238 static int
3239 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
3240 {
3241         u32  val;
3242
3243         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
3244                         state != QLCNIC_DEV_NEED_QUISCENT);
3245
3246         if (qlcnic_api_lock(adapter))
3247                 return -EIO;
3248
3249         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3250
3251         if (state == QLCNIC_DEV_NEED_RESET)
3252                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3253         else if (state == QLCNIC_DEV_NEED_QUISCENT)
3254                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
3255
3256         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3257
3258         qlcnic_api_unlock(adapter);
3259
3260         return 0;
3261 }
3262
3263 static int
3264 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
3265 {
3266         u32  val;
3267
3268         if (qlcnic_api_lock(adapter))
3269                 return -EBUSY;
3270
3271         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3272         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3273         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3274
3275         qlcnic_api_unlock(adapter);
3276
3277         return 0;
3278 }
3279
3280 void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
3281 {
3282         u32  val;
3283
3284         if (qlcnic_api_lock(adapter))
3285                 goto err;
3286
3287         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3288         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
3289         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3290
3291         if (failed) {
3292                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3293                                     QLCNIC_DEV_FAILED);
3294                 dev_info(&adapter->pdev->dev,
3295                                 "Device state set to Failed. Please Reboot\n");
3296         } else if (!(val & 0x11111111))
3297                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3298                                     QLCNIC_DEV_COLD);
3299
3300         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3301         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3302         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3303
3304         qlcnic_api_unlock(adapter);
3305 err:
3306         adapter->fw_fail_cnt = 0;
3307         adapter->flags &= ~QLCNIC_FW_HANG;
3308         clear_bit(__QLCNIC_START_FW, &adapter->state);
3309         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3310 }
3311
3312 /* Grab api lock, before checking state */
3313 static int
3314 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
3315 {
3316         int act, state, active_mask;
3317         struct qlcnic_hardware_context *ahw = adapter->ahw;
3318
3319         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3320         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3321
3322         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
3323                 active_mask = (~(1 << (ahw->pci_func * 4)));
3324                 act = act & active_mask;
3325         }
3326
3327         if (((state & 0x11111111) == (act & 0x11111111)) ||
3328                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
3329                 return 0;
3330         else
3331                 return 1;
3332 }
3333
3334 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
3335 {
3336         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
3337
3338         if (val != QLCNIC_DRV_IDC_VER) {
3339                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
3340                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
3341         }
3342
3343         return 0;
3344 }
3345
3346 static int
3347 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
3348 {
3349         u32 val, prev_state;
3350         u8 dev_init_timeo = adapter->dev_init_timeo;
3351         u8 portnum = adapter->portnum;
3352         u8 ret;
3353
3354         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
3355                 return 1;
3356
3357         if (qlcnic_api_lock(adapter))
3358                 return -1;
3359
3360         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3361         if (!(val & (1 << (portnum * 4)))) {
3362                 QLC_DEV_SET_REF_CNT(val, portnum);
3363                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3364         }
3365
3366         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3367         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
3368
3369         switch (prev_state) {
3370         case QLCNIC_DEV_COLD:
3371                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3372                                     QLCNIC_DEV_INITIALIZING);
3373                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
3374                                     QLCNIC_DRV_IDC_VER);
3375                 qlcnic_idc_debug_info(adapter, 0);
3376                 qlcnic_api_unlock(adapter);
3377                 return 1;
3378
3379         case QLCNIC_DEV_READY:
3380                 ret = qlcnic_check_idc_ver(adapter);
3381                 qlcnic_api_unlock(adapter);
3382                 return ret;
3383
3384         case QLCNIC_DEV_NEED_RESET:
3385                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3386                 QLC_DEV_SET_RST_RDY(val, portnum);
3387                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3388                 break;
3389
3390         case QLCNIC_DEV_NEED_QUISCENT:
3391                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3392                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
3393                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3394                 break;
3395
3396         case QLCNIC_DEV_FAILED:
3397                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
3398                 qlcnic_api_unlock(adapter);
3399                 return -1;
3400
3401         case QLCNIC_DEV_INITIALIZING:
3402         case QLCNIC_DEV_QUISCENT:
3403                 break;
3404         }
3405
3406         qlcnic_api_unlock(adapter);
3407
3408         do {
3409                 msleep(1000);
3410                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3411
3412                 if (prev_state == QLCNIC_DEV_QUISCENT)
3413                         continue;
3414         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
3415
3416         if (!dev_init_timeo) {
3417                 dev_err(&adapter->pdev->dev,
3418                         "Waiting for device to initialize timeout\n");
3419                 return -1;
3420         }
3421
3422         if (qlcnic_api_lock(adapter))
3423                 return -1;
3424
3425         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3426         QLC_DEV_CLR_RST_QSCNT(val, portnum);
3427         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3428
3429         ret = qlcnic_check_idc_ver(adapter);
3430         qlcnic_api_unlock(adapter);
3431
3432         return ret;
3433 }
3434
3435 static void
3436 qlcnic_fwinit_work(struct work_struct *work)
3437 {
3438         struct qlcnic_adapter *adapter = container_of(work,
3439                         struct qlcnic_adapter, fw_work.work);
3440         u32 dev_state = 0xf;
3441         u32 val;
3442
3443         if (qlcnic_api_lock(adapter))
3444                 goto err_ret;
3445
3446         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3447         if (dev_state == QLCNIC_DEV_QUISCENT ||
3448             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3449                 qlcnic_api_unlock(adapter);
3450                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
3451                                                 FW_POLL_DELAY * 2);
3452                 return;
3453         }
3454
3455         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
3456                 qlcnic_api_unlock(adapter);
3457                 goto wait_npar;
3458         }
3459
3460         if (dev_state == QLCNIC_DEV_INITIALIZING ||
3461             dev_state == QLCNIC_DEV_READY) {
3462                 dev_info(&adapter->pdev->dev, "Detected state change from "
3463                                 "DEV_NEED_RESET, skipping ack check\n");
3464                 goto skip_ack_check;
3465         }
3466
3467         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
3468                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
3469                                         adapter->reset_ack_timeo);
3470                 goto skip_ack_check;
3471         }
3472
3473         if (!qlcnic_check_drv_state(adapter)) {
3474 skip_ack_check:
3475                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3476
3477                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
3478                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3479                                             QLCNIC_DEV_INITIALIZING);
3480                         set_bit(__QLCNIC_START_FW, &adapter->state);
3481                         QLCDB(adapter, DRV, "Restarting fw\n");
3482                         qlcnic_idc_debug_info(adapter, 0);
3483                         val = QLC_SHARED_REG_RD32(adapter,
3484                                                   QLCNIC_CRB_DRV_STATE);
3485                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3486                         QLC_SHARED_REG_WR32(adapter,
3487                                             QLCNIC_CRB_DRV_STATE, val);
3488                 }
3489
3490                 qlcnic_api_unlock(adapter);
3491
3492                 rtnl_lock();
3493                 if (qlcnic_check_fw_dump_state(adapter) &&
3494                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3495                         QLCDB(adapter, DRV, "Take FW dump\n");
3496                         qlcnic_dump_fw(adapter);
3497                         adapter->flags |= QLCNIC_FW_HANG;
3498                 }
3499                 rtnl_unlock();
3500
3501                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
3502                 if (!adapter->nic_ops->start_firmware(adapter)) {
3503                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3504                         adapter->fw_wait_cnt = 0;
3505                         return;
3506                 }
3507                 goto err_ret;
3508         }
3509
3510         qlcnic_api_unlock(adapter);
3511
3512 wait_npar:
3513         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3514         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
3515
3516         switch (dev_state) {
3517         case QLCNIC_DEV_READY:
3518                 if (!qlcnic_start_firmware(adapter)) {
3519                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3520                         adapter->fw_wait_cnt = 0;
3521                         return;
3522                 }
3523         case QLCNIC_DEV_FAILED:
3524                 break;
3525         default:
3526                 qlcnic_schedule_work(adapter,
3527                         qlcnic_fwinit_work, FW_POLL_DELAY);
3528                 return;
3529         }
3530
3531 err_ret:
3532         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
3533                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
3534         netif_device_attach(adapter->netdev);
3535         qlcnic_clr_all_drv_state(adapter, 0);
3536 }
3537
3538 static void
3539 qlcnic_detach_work(struct work_struct *work)
3540 {
3541         struct qlcnic_adapter *adapter = container_of(work,
3542                         struct qlcnic_adapter, fw_work.work);
3543         struct net_device *netdev = adapter->netdev;
3544         u32 status;
3545
3546         netif_device_detach(netdev);
3547
3548         /* Dont grab rtnl lock during Quiscent mode */
3549         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3550                 if (netif_running(netdev))
3551                         __qlcnic_down(adapter, netdev);
3552         } else
3553                 qlcnic_down(adapter, netdev);
3554
3555         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3556
3557         if (status & QLCNIC_RCODE_FATAL_ERROR) {
3558                 dev_err(&adapter->pdev->dev,
3559                         "Detaching the device: peg halt status1=0x%x\n",
3560                                         status);
3561
3562                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
3563                         dev_err(&adapter->pdev->dev,
3564                         "On board active cooling fan failed. "
3565                                 "Device has been halted.\n");
3566                         dev_err(&adapter->pdev->dev,
3567                                 "Replace the adapter.\n");
3568                 }
3569
3570                 goto err_ret;
3571         }
3572
3573         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
3574                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
3575                         adapter->ahw->temp);
3576                 goto err_ret;
3577         }
3578
3579         /* Dont ack if this instance is the reset owner */
3580         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3581                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
3582                         dev_err(&adapter->pdev->dev,
3583                                 "Failed to set driver state,"
3584                                         "detaching the device.\n");
3585                         goto err_ret;
3586                 }
3587         }
3588
3589         adapter->fw_wait_cnt = 0;
3590
3591         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3592
3593         return;
3594
3595 err_ret:
3596         netif_device_attach(netdev);
3597         qlcnic_clr_all_drv_state(adapter, 1);
3598 }
3599
3600 /*Transit NPAR state to NON Operational */
3601 static void
3602 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3603 {
3604         u32 state;
3605
3606         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3607         if (state == QLCNIC_DEV_NPAR_NON_OPER)
3608                 return;
3609
3610         if (qlcnic_api_lock(adapter))
3611                 return;
3612         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3613                             QLCNIC_DEV_NPAR_NON_OPER);
3614         qlcnic_api_unlock(adapter);
3615 }
3616
3617 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter,
3618                                           u32 key)
3619 {
3620         u32 state, xg_val = 0, gb_val = 0;
3621
3622         qlcnic_xg_set_xg0_mask(xg_val);
3623         qlcnic_xg_set_xg1_mask(xg_val);
3624         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3625         qlcnic_gb_set_gb0_mask(gb_val);
3626         qlcnic_gb_set_gb1_mask(gb_val);
3627         qlcnic_gb_set_gb2_mask(gb_val);
3628         qlcnic_gb_set_gb3_mask(gb_val);
3629         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3630         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3631                                 " on all ports\n");
3632         adapter->need_fw_reset = 1;
3633
3634         if (qlcnic_api_lock(adapter))
3635                 return;
3636
3637         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3638
3639         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
3640                 netdev_err(adapter->netdev, "%s: Device is in non-operational state\n",
3641                            __func__);
3642                 qlcnic_api_unlock(adapter);
3643
3644                 return;
3645         }
3646
3647         if (state == QLCNIC_DEV_READY) {
3648                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3649                                     QLCNIC_DEV_NEED_RESET);
3650                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3651                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3652                 qlcnic_idc_debug_info(adapter, 0);
3653         }
3654
3655         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3656                             QLCNIC_DEV_NPAR_NON_OPER);
3657         qlcnic_api_unlock(adapter);
3658 }
3659
3660 /* Transit to NPAR READY state from NPAR NOT READY state */
3661 static void
3662 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3663 {
3664         if (qlcnic_api_lock(adapter))
3665                 return;
3666
3667         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3668                             QLCNIC_DEV_NPAR_OPER);
3669         QLCDB(adapter, DRV, "NPAR operational state set\n");
3670
3671         qlcnic_api_unlock(adapter);
3672 }
3673
3674 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3675                           work_func_t func, int delay)
3676 {
3677         if (test_bit(__QLCNIC_AER, &adapter->state))
3678                 return;
3679
3680         INIT_DELAYED_WORK(&adapter->fw_work, func);
3681         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3682                            round_jiffies_relative(delay));
3683 }
3684
3685 static void
3686 qlcnic_attach_work(struct work_struct *work)
3687 {
3688         struct qlcnic_adapter *adapter = container_of(work,
3689                                 struct qlcnic_adapter, fw_work.work);
3690         struct net_device *netdev = adapter->netdev;
3691         u32 npar_state;
3692
3693         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3694                 npar_state = QLC_SHARED_REG_RD32(adapter,
3695                                                  QLCNIC_CRB_DEV_NPAR_STATE);
3696                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3697                         qlcnic_clr_all_drv_state(adapter, 0);
3698                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3699                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
3700                                                         FW_POLL_DELAY);
3701                 else
3702                         goto attach;
3703                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3704                 return;
3705         }
3706 attach:
3707         qlcnic_dcb_get_info(adapter->dcb);
3708
3709         if (netif_running(netdev)) {
3710                 if (qlcnic_up(adapter, netdev))
3711                         goto done;
3712
3713                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3714         }
3715
3716 done:
3717         netif_device_attach(netdev);
3718         adapter->fw_fail_cnt = 0;
3719         adapter->flags &= ~QLCNIC_FW_HANG;
3720         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3721         if (adapter->portnum == 0)
3722                 qlcnic_set_drv_version(adapter);
3723
3724         if (!qlcnic_clr_drv_state(adapter))
3725                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3726                                                         FW_POLL_DELAY);
3727 }
3728
3729 static int
3730 qlcnic_check_health(struct qlcnic_adapter *adapter)
3731 {
3732         struct qlcnic_hardware_context *ahw = adapter->ahw;
3733         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
3734         u32 state = 0, heartbeat;
3735         u32 peg_status;
3736         int err = 0;
3737
3738         if (qlcnic_check_temp(adapter))
3739                 goto detach;
3740
3741         if (adapter->need_fw_reset)
3742                 qlcnic_dev_request_reset(adapter, 0);
3743
3744         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3745         if (state == QLCNIC_DEV_NEED_RESET) {
3746                 qlcnic_set_npar_non_operational(adapter);
3747                 adapter->need_fw_reset = 1;
3748         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3749                 goto detach;
3750
3751         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3752         if (heartbeat != adapter->heartbeat) {
3753                 adapter->heartbeat = heartbeat;
3754                 adapter->fw_fail_cnt = 0;
3755                 if (adapter->need_fw_reset)
3756                         goto detach;
3757
3758                 if (ahw->reset_context && qlcnic_auto_fw_reset)
3759                         qlcnic_reset_hw_context(adapter);
3760
3761                 return 0;
3762         }
3763
3764         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3765                 return 0;
3766
3767         adapter->flags |= QLCNIC_FW_HANG;
3768
3769         qlcnic_dev_request_reset(adapter, 0);
3770
3771         if (qlcnic_auto_fw_reset)
3772                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3773
3774         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3775         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3776         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3777                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3778                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3779                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3780                         "PEG_NET_4_PC: 0x%x\n",
3781                         peg_status,
3782                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3783                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3784                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3785                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3786                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3787                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3788         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3789                 dev_err(&adapter->pdev->dev,
3790                         "Firmware aborted with error code 0x00006700. "
3791                                 "Device is being reset.\n");
3792 detach:
3793         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3794                 QLCNIC_DEV_NEED_RESET;
3795
3796         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3797                                                       &adapter->state)) {
3798
3799                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3800                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3801         } else if (!qlcnic_auto_fw_reset && fw_dump->enable &&
3802                    adapter->flags & QLCNIC_FW_RESET_OWNER) {
3803                 qlcnic_dump_fw(adapter);
3804         }
3805
3806         return 1;
3807 }
3808
3809 void qlcnic_fw_poll_work(struct work_struct *work)
3810 {
3811         struct qlcnic_adapter *adapter = container_of(work,
3812                                 struct qlcnic_adapter, fw_work.work);
3813
3814         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3815                 goto reschedule;
3816
3817
3818         if (qlcnic_check_health(adapter))
3819                 return;
3820
3821         if (adapter->fhash.fnum)
3822                 qlcnic_prune_lb_filters(adapter);
3823
3824 reschedule:
3825         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3826 }
3827
3828 static int qlcnic_is_first_func(struct pci_dev *pdev)
3829 {
3830         struct pci_dev *oth_pdev;
3831         int val = pdev->devfn;
3832
3833         while (val-- > 0) {
3834                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3835                         (pdev->bus), pdev->bus->number,
3836                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3837                 if (!oth_pdev)
3838                         continue;
3839
3840                 if (oth_pdev->current_state != PCI_D3cold) {
3841                         pci_dev_put(oth_pdev);
3842                         return 0;
3843                 }
3844                 pci_dev_put(oth_pdev);
3845         }
3846         return 1;
3847 }
3848
3849 static int qlcnic_attach_func(struct pci_dev *pdev)
3850 {
3851         int err, first_func;
3852         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3853         struct net_device *netdev = adapter->netdev;
3854
3855         pdev->error_state = pci_channel_io_normal;
3856
3857         err = pci_enable_device(pdev);
3858         if (err)
3859                 return err;
3860
3861         pci_set_master(pdev);
3862         pci_restore_state(pdev);
3863
3864         first_func = qlcnic_is_first_func(pdev);
3865
3866         if (qlcnic_api_lock(adapter))
3867                 return -EINVAL;
3868
3869         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3870                 adapter->need_fw_reset = 1;
3871                 set_bit(__QLCNIC_START_FW, &adapter->state);
3872                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3873                                     QLCNIC_DEV_INITIALIZING);
3874                 QLCDB(adapter, DRV, "Restarting fw\n");
3875         }
3876         qlcnic_api_unlock(adapter);
3877
3878         err = qlcnic_start_firmware(adapter);
3879         if (err)
3880                 return err;
3881
3882         qlcnic_clr_drv_state(adapter);
3883         kfree(adapter->msix_entries);
3884         adapter->msix_entries = NULL;
3885         err = qlcnic_setup_intr(adapter);
3886
3887         if (err) {
3888                 kfree(adapter->msix_entries);
3889                 netdev_err(netdev, "failed to setup interrupt\n");
3890                 return err;
3891         }
3892
3893         if (netif_running(netdev)) {
3894                 err = qlcnic_attach(adapter);
3895                 if (err) {
3896                         qlcnic_clr_all_drv_state(adapter, 1);
3897                         clear_bit(__QLCNIC_AER, &adapter->state);
3898                         netif_device_attach(netdev);
3899                         return err;
3900                 }
3901
3902                 err = qlcnic_up(adapter, netdev);
3903                 if (err)
3904                         goto done;
3905
3906                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3907         }
3908  done:
3909         netif_device_attach(netdev);
3910         return err;
3911 }
3912
3913 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
3914                                                       pci_channel_state_t state)
3915 {
3916         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3917         struct net_device *netdev = adapter->netdev;
3918
3919         if (state == pci_channel_io_perm_failure)
3920                 return PCI_ERS_RESULT_DISCONNECT;
3921
3922         if (state == pci_channel_io_normal)
3923                 return PCI_ERS_RESULT_RECOVERED;
3924
3925         set_bit(__QLCNIC_AER, &adapter->state);
3926         netif_device_detach(netdev);
3927
3928         cancel_delayed_work_sync(&adapter->fw_work);
3929
3930         if (netif_running(netdev))
3931                 qlcnic_down(adapter, netdev);
3932
3933         qlcnic_detach(adapter);
3934         qlcnic_teardown_intr(adapter);
3935
3936         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3937
3938         pci_save_state(pdev);
3939         pci_disable_device(pdev);
3940
3941         return PCI_ERS_RESULT_NEED_RESET;
3942 }
3943
3944 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
3945 {
3946         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3947                                 PCI_ERS_RESULT_RECOVERED;
3948 }
3949
3950 static void qlcnic_82xx_io_resume(struct pci_dev *pdev)
3951 {
3952         u32 state;
3953         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3954
3955         pci_cleanup_aer_uncorrect_error_status(pdev);
3956         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3957         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3958                                                             &adapter->state))
3959                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3960                                      FW_POLL_DELAY);
3961 }
3962
3963 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3964                                                  pci_channel_state_t state)
3965 {
3966         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3967         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3968
3969         if (hw_ops->io_error_detected) {
3970                 return hw_ops->io_error_detected(pdev, state);
3971         } else {
3972                 dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
3973                 return PCI_ERS_RESULT_DISCONNECT;
3974         }
3975 }
3976
3977 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3978 {
3979         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3980         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3981
3982         if (hw_ops->io_slot_reset) {
3983                 return hw_ops->io_slot_reset(pdev);
3984         } else {
3985                 dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
3986                 return PCI_ERS_RESULT_DISCONNECT;
3987         }
3988 }
3989
3990 static void qlcnic_io_resume(struct pci_dev *pdev)
3991 {
3992         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3993         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3994
3995         if (hw_ops->io_resume)
3996                 hw_ops->io_resume(pdev);
3997         else
3998                 dev_err(&pdev->dev, "AER resume handler not registered.\n");
3999 }
4000
4001
4002 static int
4003 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
4004 {
4005         int err;
4006
4007         err = qlcnic_can_start_firmware(adapter);
4008         if (err)
4009                 return err;
4010
4011         err = qlcnic_check_npar_opertional(adapter);
4012         if (err)
4013                 return err;
4014
4015         err = qlcnic_initialize_nic(adapter);
4016         if (err)
4017                 return err;
4018
4019         qlcnic_check_options(adapter);
4020
4021         err = qlcnic_set_eswitch_port_config(adapter);
4022         if (err)
4023                 return err;
4024
4025         adapter->need_fw_reset = 0;
4026
4027         return err;
4028 }
4029
4030 int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt,
4031                           int queue_type)
4032 {
4033         struct net_device *netdev = adapter->netdev;
4034         u8 max_hw_rings = 0;
4035         char buf[8];
4036         int cur_rings;
4037
4038         if (queue_type == QLCNIC_RX_QUEUE) {
4039                 max_hw_rings = adapter->max_sds_rings;
4040                 cur_rings = adapter->drv_sds_rings;
4041                 strcpy(buf, "SDS");
4042         } else if (queue_type == QLCNIC_TX_QUEUE) {
4043                 max_hw_rings = adapter->max_tx_rings;
4044                 cur_rings = adapter->drv_tx_rings;
4045                 strcpy(buf, "Tx");
4046         }
4047
4048         if (!is_power_of_2(ring_cnt)) {
4049                 netdev_err(netdev, "%s rings value should be a power of 2\n",
4050                            buf);
4051                 return -EINVAL;
4052         }
4053
4054         if (qlcnic_82xx_check(adapter) && (queue_type == QLCNIC_TX_QUEUE) &&
4055             !qlcnic_check_multi_tx(adapter)) {
4056                         netdev_err(netdev, "No Multi Tx queue support\n");
4057                         return -EINVAL;
4058         }
4059
4060         if (ring_cnt > num_online_cpus()) {
4061                 netdev_err(netdev,
4062                            "%s value[%u] should not be higher than, number of online CPUs\n",
4063                            buf, num_online_cpus());
4064                 return -EINVAL;
4065         }
4066
4067         return 0;
4068 }
4069
4070 int qlcnic_setup_rings(struct qlcnic_adapter *adapter)
4071 {
4072         struct net_device *netdev = adapter->netdev;
4073         u8 tx_rings, rx_rings;
4074         int err;
4075
4076         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
4077                 return -EBUSY;
4078
4079         tx_rings = adapter->drv_tss_rings;
4080         rx_rings = adapter->drv_rss_rings;
4081
4082         netif_device_detach(netdev);
4083
4084         err = qlcnic_set_real_num_queues(adapter, tx_rings, rx_rings);
4085         if (err)
4086                 goto done;
4087
4088         if (netif_running(netdev))
4089                 __qlcnic_down(adapter, netdev);
4090
4091         qlcnic_detach(adapter);
4092
4093         if (qlcnic_83xx_check(adapter)) {
4094                 qlcnic_83xx_free_mbx_intr(adapter);
4095                 qlcnic_83xx_enable_mbx_poll(adapter);
4096         }
4097
4098         qlcnic_teardown_intr(adapter);
4099
4100         err = qlcnic_setup_intr(adapter);
4101         if (err) {
4102                 kfree(adapter->msix_entries);
4103                 netdev_err(netdev, "failed to setup interrupt\n");
4104                 return err;
4105         }
4106
4107         /* Check if we need to update real_num_{tx|rx}_queues because
4108          * qlcnic_setup_intr() may change Tx/Rx rings size
4109          */
4110         if ((tx_rings != adapter->drv_tx_rings) ||
4111             (rx_rings != adapter->drv_sds_rings)) {
4112                 err = qlcnic_set_real_num_queues(adapter,
4113                                                  adapter->drv_tx_rings,
4114                                                  adapter->drv_sds_rings);
4115                 if (err)
4116                         goto done;
4117         }
4118
4119         if (qlcnic_83xx_check(adapter)) {
4120                 qlcnic_83xx_initialize_nic(adapter, 1);
4121                 err = qlcnic_83xx_setup_mbx_intr(adapter);
4122                 qlcnic_83xx_disable_mbx_poll(adapter);
4123                 if (err) {
4124                         dev_err(&adapter->pdev->dev,
4125                                 "failed to setup mbx interrupt\n");
4126                         goto done;
4127                 }
4128         }
4129
4130         if (netif_running(netdev)) {
4131                 err = qlcnic_attach(adapter);
4132                 if (err)
4133                         goto done;
4134                 err = __qlcnic_up(adapter, netdev);
4135                 if (err)
4136                         goto done;
4137                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
4138         }
4139 done:
4140         netif_device_attach(netdev);
4141         clear_bit(__QLCNIC_RESETTING, &adapter->state);
4142         return err;
4143 }
4144
4145 #ifdef CONFIG_INET
4146
4147 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4148
4149 static void
4150 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4151                         struct net_device *dev, unsigned long event)
4152 {
4153         struct in_device *indev;
4154
4155         indev = in_dev_get(dev);
4156         if (!indev)
4157                 return;
4158
4159         for_ifa(indev) {
4160                 switch (event) {
4161                 case NETDEV_UP:
4162                         qlcnic_config_ipaddr(adapter,
4163                                         ifa->ifa_address, QLCNIC_IP_UP);
4164                         break;
4165                 case NETDEV_DOWN:
4166                         qlcnic_config_ipaddr(adapter,
4167                                         ifa->ifa_address, QLCNIC_IP_DOWN);
4168                         break;
4169                 default:
4170                         break;
4171                 }
4172         } endfor_ifa(indev);
4173
4174         in_dev_put(indev);
4175 }
4176
4177 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4178 {
4179         struct qlcnic_adapter *adapter = netdev_priv(netdev);
4180         struct net_device *dev;
4181         u16 vid;
4182
4183         qlcnic_config_indev_addr(adapter, netdev, event);
4184
4185         rcu_read_lock();
4186         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
4187                 dev = __vlan_find_dev_deep_rcu(netdev, htons(ETH_P_8021Q), vid);
4188                 if (!dev)
4189                         continue;
4190                 qlcnic_config_indev_addr(adapter, dev, event);
4191         }
4192         rcu_read_unlock();
4193 }
4194
4195 static int qlcnic_netdev_event(struct notifier_block *this,
4196                                  unsigned long event, void *ptr)
4197 {
4198         struct qlcnic_adapter *adapter;
4199         struct net_device *dev = netdev_notifier_info_to_dev(ptr);
4200
4201 recheck:
4202         if (dev == NULL)
4203                 goto done;
4204
4205         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4206                 dev = vlan_dev_real_dev(dev);
4207                 goto recheck;
4208         }
4209
4210         if (!is_qlcnic_netdev(dev))
4211                 goto done;
4212
4213         adapter = netdev_priv(dev);
4214
4215         if (!adapter)
4216                 goto done;
4217
4218         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4219                 goto done;
4220
4221         qlcnic_config_indev_addr(adapter, dev, event);
4222 done:
4223         return NOTIFY_DONE;
4224 }
4225
4226 static int
4227 qlcnic_inetaddr_event(struct notifier_block *this,
4228                 unsigned long event, void *ptr)
4229 {
4230         struct qlcnic_adapter *adapter;
4231         struct net_device *dev;
4232
4233         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4234
4235         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4236
4237 recheck:
4238         if (dev == NULL)
4239                 goto done;
4240
4241         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4242                 dev = vlan_dev_real_dev(dev);
4243                 goto recheck;
4244         }
4245
4246         if (!is_qlcnic_netdev(dev))
4247                 goto done;
4248
4249         adapter = netdev_priv(dev);
4250
4251         if (!adapter)
4252                 goto done;
4253
4254         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4255                 goto done;
4256
4257         switch (event) {
4258         case NETDEV_UP:
4259                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4260
4261                 break;
4262         case NETDEV_DOWN:
4263                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4264
4265                 break;
4266         default:
4267                 break;
4268         }
4269
4270 done:
4271         return NOTIFY_DONE;
4272 }
4273
4274 static struct notifier_block    qlcnic_netdev_cb = {
4275         .notifier_call = qlcnic_netdev_event,
4276 };
4277
4278 static struct notifier_block qlcnic_inetaddr_cb = {
4279         .notifier_call = qlcnic_inetaddr_event,
4280 };
4281 #else
4282 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4283 { }
4284 #endif
4285 static const struct pci_error_handlers qlcnic_err_handler = {
4286         .error_detected = qlcnic_io_error_detected,
4287         .slot_reset = qlcnic_io_slot_reset,
4288         .resume = qlcnic_io_resume,
4289 };
4290
4291 static struct pci_driver qlcnic_driver = {
4292         .name = qlcnic_driver_name,
4293         .id_table = qlcnic_pci_tbl,
4294         .probe = qlcnic_probe,
4295         .remove = qlcnic_remove,
4296 #ifdef CONFIG_PM
4297         .suspend = qlcnic_suspend,
4298         .resume = qlcnic_resume,
4299 #endif
4300         .shutdown = qlcnic_shutdown,
4301         .err_handler = &qlcnic_err_handler,
4302 #ifdef CONFIG_QLCNIC_SRIOV
4303         .sriov_configure = qlcnic_pci_sriov_configure,
4304 #endif
4305
4306 };
4307
4308 static int __init qlcnic_init_module(void)
4309 {
4310         int ret;
4311
4312         printk(KERN_INFO "%s\n", qlcnic_driver_string);
4313
4314 #ifdef CONFIG_INET
4315         register_netdevice_notifier(&qlcnic_netdev_cb);
4316         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4317 #endif
4318
4319         ret = pci_register_driver(&qlcnic_driver);
4320         if (ret) {
4321 #ifdef CONFIG_INET
4322                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4323                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4324 #endif
4325         }
4326
4327         return ret;
4328 }
4329
4330 module_init(qlcnic_init_module);
4331
4332 static void __exit qlcnic_exit_module(void)
4333 {
4334         pci_unregister_driver(&qlcnic_driver);
4335
4336 #ifdef CONFIG_INET
4337         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4338         unregister_netdevice_notifier(&qlcnic_netdev_cb);
4339 #endif
4340 }
4341
4342 module_exit(qlcnic_exit_module);