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

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