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 = -EINVAL;
1035                         dev_err(&adapter->pdev->dev, "%s: Invalid function 0x%x, max 0x%x\n",
1036                                 __func__, pfn, ahw->max_vnic_func);
1037                         goto err_eswitch;
1038                 }
1039
1040                 if (!pci_info[i].active ||
1041                     (pci_info[i].type != QLCNIC_TYPE_NIC))
1042                         continue;
1043
1044                 if (qlcnic_port_eswitch_cfg_capability(adapter)) {
1045                         if (!qlcnic_83xx_set_port_eswitch_status(adapter, pfn,
1046                                                                  &id))
1047                                 adapter->npars[j].eswitch_status = true;
1048                         else
1049                                 continue;
1050                 } else {
1051                         adapter->npars[j].eswitch_status = true;
1052                 }
1053
1054                 adapter->npars[j].pci_func = pfn;
1055                 adapter->npars[j].active = (u8)pci_info[i].active;
1056                 adapter->npars[j].type = (u8)pci_info[i].type;
1057                 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
1058                 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
1059                 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
1060
1061                 memcpy(&adapter->npars[j].mac, &pci_info[i].mac, ETH_ALEN);
1062                 j++;
1063         }
1064
1065         /* Update eSwitch status for adapters without per port eSwitch
1066          * configuration capability
1067          */
1068         if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
1069                 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
1070                         adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
1071         }
1072
1073         kfree(pci_info);
1074         return 0;
1075
1076 err_eswitch:
1077         kfree(adapter->eswitch);
1078         adapter->eswitch = NULL;
1079 err_npars:
1080         kfree(adapter->npars);
1081         adapter->npars = NULL;
1082 err_pci_info:
1083         kfree(pci_info);
1084
1085         return ret;
1086 }
1087
1088 static int
1089 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
1090 {
1091         u8 id;
1092         int ret;
1093         u32 data = QLCNIC_MGMT_FUNC;
1094         struct qlcnic_hardware_context *ahw = adapter->ahw;
1095
1096         ret = qlcnic_api_lock(adapter);
1097         if (ret)
1098                 goto err_lock;
1099
1100         id = ahw->pci_func;
1101         data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1102         data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
1103                QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
1104         QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
1105         qlcnic_api_unlock(adapter);
1106 err_lock:
1107         return ret;
1108 }
1109
1110 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
1111                             const struct pci_device_id *ent)
1112 {
1113         u32 op_mode, priv_level;
1114
1115         /* Determine FW API version */
1116         adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
1117                                                            QLCNIC_FW_API);
1118
1119         /* Find PCI function number */
1120         qlcnic_get_func_no(adapter);
1121
1122         /* Determine function privilege level */
1123         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1124         if (op_mode == QLC_DEV_DRV_DEFAULT)
1125                 priv_level = QLCNIC_MGMT_FUNC;
1126         else
1127                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1128
1129         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
1130                 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
1131                 dev_info(&adapter->pdev->dev,
1132                         "HAL Version: %d Non Privileged function\n",
1133                          adapter->ahw->fw_hal_version);
1134                 adapter->nic_ops = &qlcnic_vf_ops;
1135         } else
1136                 adapter->nic_ops = &qlcnic_ops;
1137 }
1138
1139 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
1140 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
1141 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
1142 {
1143         switch (dev_id) {
1144         case PCI_DEVICE_ID_QLOGIC_QLE824X:
1145                 *bar = QLCNIC_82XX_BAR0_LENGTH;
1146                 break;
1147         case PCI_DEVICE_ID_QLOGIC_QLE834X:
1148         case PCI_DEVICE_ID_QLOGIC_QLE8830:
1149         case PCI_DEVICE_ID_QLOGIC_QLE844X:
1150         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
1151         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
1152                 *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                 tx_ring->cmd_buf_arr = cmd_buf_arr;
2407                 spin_lock_init(&tx_ring->tx_clean_lock);
2408         }
2409
2410         if (qlcnic_83xx_check(adapter) ||
2411             (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
2412                 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2413                         tx_ring = &adapter->tx_ring[ring];
2414                         tx_ring->adapter = adapter;
2415                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
2416                                 index = adapter->drv_sds_rings + ring;
2417                                 vector = adapter->msix_entries[index].vector;
2418                                 tx_ring->irq = vector;
2419                         }
2420                 }
2421         }
2422
2423         return 0;
2424 }
2425
2426 void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
2427 {
2428         struct qlcnic_hardware_context *ahw = adapter->ahw;
2429         u32 fw_cmd = 0;
2430
2431         if (qlcnic_82xx_check(adapter))
2432                 fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
2433         else if (qlcnic_83xx_check(adapter))
2434                 fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
2435
2436         if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER)
2437                 qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
2438 }
2439
2440 /* Reset firmware API lock */
2441 static void qlcnic_reset_api_lock(struct qlcnic_adapter *adapter)
2442 {
2443         qlcnic_api_lock(adapter);
2444         qlcnic_api_unlock(adapter);
2445 }
2446
2447
2448 static int
2449 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2450 {
2451         struct net_device *netdev = NULL;
2452         struct qlcnic_adapter *adapter = NULL;
2453         struct qlcnic_hardware_context *ahw;
2454         int err, pci_using_dac = -1;
2455         char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
2456
2457         err = pci_enable_device(pdev);
2458         if (err)
2459                 return err;
2460
2461         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2462                 err = -ENODEV;
2463                 goto err_out_disable_pdev;
2464         }
2465
2466         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
2467         if (err)
2468                 goto err_out_disable_pdev;
2469
2470         err = pci_request_regions(pdev, qlcnic_driver_name);
2471         if (err)
2472                 goto err_out_disable_pdev;
2473
2474         pci_set_master(pdev);
2475         pci_enable_pcie_error_reporting(pdev);
2476
2477         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2478         if (!ahw) {
2479                 err = -ENOMEM;
2480                 goto err_out_free_res;
2481         }
2482
2483         switch (ent->device) {
2484         case PCI_DEVICE_ID_QLOGIC_QLE824X:
2485                 ahw->hw_ops = &qlcnic_hw_ops;
2486                 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2487                 break;
2488         case PCI_DEVICE_ID_QLOGIC_QLE834X:
2489         case PCI_DEVICE_ID_QLOGIC_QLE8830:
2490         case PCI_DEVICE_ID_QLOGIC_QLE844X:
2491                 qlcnic_83xx_register_map(ahw);
2492                 break;
2493         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2494         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2495                 qlcnic_sriov_vf_register_map(ahw);
2496                 break;
2497         default:
2498                 goto err_out_free_hw_res;
2499         }
2500
2501         err = qlcnic_setup_pci_map(pdev, ahw);
2502         if (err)
2503                 goto err_out_free_hw_res;
2504
2505         netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
2506                                    QLCNIC_MAX_TX_RINGS);
2507         if (!netdev) {
2508                 err = -ENOMEM;
2509                 goto err_out_iounmap;
2510         }
2511
2512         SET_NETDEV_DEV(netdev, &pdev->dev);
2513
2514         adapter = netdev_priv(netdev);
2515         adapter->netdev  = netdev;
2516         adapter->pdev    = pdev;
2517         adapter->ahw = ahw;
2518
2519         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2520         if (adapter->qlcnic_wq == NULL) {
2521                 err = -ENOMEM;
2522                 dev_err(&pdev->dev, "Failed to create workqueue\n");
2523                 goto err_out_free_netdev;
2524         }
2525
2526         err = qlcnic_alloc_adapter_resources(adapter);
2527         if (err)
2528                 goto err_out_free_wq;
2529
2530         adapter->dev_rst_time = jiffies;
2531         ahw->revision_id = pdev->revision;
2532         ahw->max_vnic_func = qlcnic_get_vnic_func_count(adapter);
2533         if (qlcnic_mac_learn == FDB_MAC_LEARN)
2534                 adapter->fdb_mac_learn = true;
2535         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2536                 adapter->drv_mac_learn = true;
2537
2538         rwlock_init(&adapter->ahw->crb_lock);
2539         mutex_init(&adapter->ahw->mem_lock);
2540
2541         INIT_LIST_HEAD(&adapter->mac_list);
2542
2543         qlcnic_register_dcb(adapter);
2544
2545         if (qlcnic_82xx_check(adapter)) {
2546                 qlcnic_check_vf(adapter, ent);
2547                 adapter->portnum = adapter->ahw->pci_func;
2548                 qlcnic_reset_api_lock(adapter);
2549                 err = qlcnic_start_firmware(adapter);
2550                 if (err) {
2551                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
2552                                 "\t\tIf reboot doesn't help, try flashing the card\n");
2553                         goto err_out_maintenance_mode;
2554                 }
2555
2556                 /* compute and set default and max tx/sds rings */
2557                 if (adapter->ahw->msix_supported) {
2558                         if (qlcnic_check_multi_tx_capability(adapter) == 1)
2559                                 qlcnic_set_tx_ring_count(adapter,
2560                                                          QLCNIC_SINGLE_RING);
2561                         else
2562                                 qlcnic_set_tx_ring_count(adapter,
2563                                                          QLCNIC_DEF_TX_RINGS);
2564                         qlcnic_set_sds_ring_count(adapter,
2565                                                   QLCNIC_DEF_SDS_RINGS);
2566                 } else {
2567                         qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
2568                         qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
2569                 }
2570
2571                 err = qlcnic_setup_idc_param(adapter);
2572                 if (err)
2573                         goto err_out_free_hw;
2574
2575                 adapter->flags |= QLCNIC_NEED_FLR;
2576
2577         } else if (qlcnic_83xx_check(adapter)) {
2578                 qlcnic_83xx_check_vf(adapter, ent);
2579                 adapter->portnum = adapter->ahw->pci_func;
2580                 err = qlcnic_83xx_init(adapter, pci_using_dac);
2581                 if (err) {
2582                         switch (err) {
2583                         case -ENOTRECOVERABLE:
2584                                 dev_err(&pdev->dev, "Adapter initialization failed due to a faulty hardware\n");
2585                                 dev_err(&pdev->dev, "Please replace the adapter with new one and return the faulty adapter for repair\n");
2586                                 goto err_out_free_hw;
2587                         case -ENOMEM:
2588                                 dev_err(&pdev->dev, "Adapter initialization failed. Please reboot\n");
2589                                 goto err_out_free_hw;
2590                         case -EOPNOTSUPP:
2591                                 dev_err(&pdev->dev, "Adapter initialization failed\n");
2592                                 goto err_out_free_hw;
2593                         default:
2594                                 dev_err(&pdev->dev, "Adapter initialization failed. Driver will load in maintenance mode to recover the adapter using the application\n");
2595                                 goto err_out_maintenance_mode;
2596                         }
2597                 }
2598
2599                 if (qlcnic_sriov_vf_check(adapter))
2600                         return 0;
2601         } else {
2602                 dev_err(&pdev->dev,
2603                         "%s: failed. Please Reboot\n", __func__);
2604                 err = -ENODEV;
2605                 goto err_out_free_hw;
2606         }
2607
2608         if (qlcnic_read_mac_addr(adapter))
2609                 dev_warn(&pdev->dev, "failed to read mac addr\n");
2610
2611         qlcnic_read_phys_port_id(adapter);
2612
2613         if (adapter->portnum == 0) {
2614                 qlcnic_get_board_name(adapter, board_name);
2615
2616                 pr_info("%s: %s Board Chip rev 0x%x\n",
2617                         module_name(THIS_MODULE),
2618                         board_name, adapter->ahw->revision_id);
2619         }
2620
2621         if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2622             !!qlcnic_use_msi)
2623                 dev_warn(&pdev->dev,
2624                          "Device does not support MSI interrupts\n");
2625
2626         if (qlcnic_82xx_check(adapter)) {
2627                 qlcnic_dcb_enable(adapter->dcb);
2628                 qlcnic_dcb_get_info(adapter->dcb);
2629                 err = qlcnic_setup_intr(adapter);
2630
2631                 if (err) {
2632                         dev_err(&pdev->dev, "Failed to setup interrupt\n");
2633                         goto err_out_disable_msi;
2634                 }
2635         }
2636
2637         err = qlcnic_get_act_pci_func(adapter);
2638         if (err)
2639                 goto err_out_disable_mbx_intr;
2640
2641         if (adapter->portnum == 0)
2642                 qlcnic_set_drv_version(adapter);
2643
2644         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2645         if (err)
2646                 goto err_out_disable_mbx_intr;
2647
2648         pci_set_drvdata(pdev, adapter);
2649
2650         if (qlcnic_82xx_check(adapter))
2651                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2652                                      FW_POLL_DELAY);
2653
2654         switch (adapter->ahw->port_type) {
2655         case QLCNIC_GBE:
2656                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2657                                 adapter->netdev->name);
2658                 break;
2659         case QLCNIC_XGBE:
2660                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2661                                 adapter->netdev->name);
2662                 break;
2663         }
2664
2665         if (adapter->drv_mac_learn)
2666                 qlcnic_alloc_lb_filters_mem(adapter);
2667
2668         qlcnic_add_sysfs(adapter);
2669         qlcnic_register_hwmon_dev(adapter);
2670         return 0;
2671
2672 err_out_disable_mbx_intr:
2673         if (qlcnic_83xx_check(adapter))
2674                 qlcnic_83xx_free_mbx_intr(adapter);
2675
2676 err_out_disable_msi:
2677         qlcnic_teardown_intr(adapter);
2678         qlcnic_cancel_idc_work(adapter);
2679         qlcnic_clr_all_drv_state(adapter, 0);
2680
2681 err_out_free_hw:
2682         qlcnic_free_adapter_resources(adapter);
2683
2684 err_out_free_wq:
2685         destroy_workqueue(adapter->qlcnic_wq);
2686
2687 err_out_free_netdev:
2688         free_netdev(netdev);
2689
2690 err_out_iounmap:
2691         qlcnic_cleanup_pci_map(ahw);
2692
2693 err_out_free_hw_res:
2694         kfree(ahw);
2695
2696 err_out_free_res:
2697         pci_release_regions(pdev);
2698
2699 err_out_disable_pdev:
2700         pci_disable_device(pdev);
2701         return err;
2702
2703 err_out_maintenance_mode:
2704         set_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state);
2705         netdev->netdev_ops = &qlcnic_netdev_failed_ops;
2706         netdev->ethtool_ops = &qlcnic_ethtool_failed_ops;
2707         ahw->port_type = QLCNIC_XGBE;
2708
2709         if (qlcnic_83xx_check(adapter))
2710                 adapter->tgt_status_reg = NULL;
2711         else
2712                 ahw->board_type = QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS;
2713
2714         err = register_netdev(netdev);
2715
2716         if (err) {
2717                 dev_err(&pdev->dev, "Failed to register net device\n");
2718                 qlcnic_clr_all_drv_state(adapter, 0);
2719                 goto err_out_free_hw;
2720         }
2721
2722         pci_set_drvdata(pdev, adapter);
2723         qlcnic_add_sysfs(adapter);
2724
2725         return 0;
2726 }
2727
2728 static void qlcnic_remove(struct pci_dev *pdev)
2729 {
2730         struct qlcnic_adapter *adapter;
2731         struct net_device *netdev;
2732         struct qlcnic_hardware_context *ahw;
2733
2734         adapter = pci_get_drvdata(pdev);
2735         if (adapter == NULL)
2736                 return;
2737
2738         netdev = adapter->netdev;
2739
2740         qlcnic_cancel_idc_work(adapter);
2741         qlcnic_sriov_pf_disable(adapter);
2742         ahw = adapter->ahw;
2743
2744         unregister_netdev(netdev);
2745         qlcnic_sriov_cleanup(adapter);
2746
2747         if (qlcnic_83xx_check(adapter)) {
2748                 qlcnic_83xx_initialize_nic(adapter, 0);
2749                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2750                 qlcnic_83xx_free_mbx_intr(adapter);
2751                 qlcnic_83xx_detach_mailbox_work(adapter);
2752                 qlcnic_83xx_free_mailbox(ahw->mailbox);
2753                 kfree(ahw->fw_info);
2754         }
2755
2756         qlcnic_dcb_free(adapter->dcb);
2757         qlcnic_detach(adapter);
2758         kfree(adapter->npars);
2759         kfree(adapter->eswitch);
2760
2761         if (qlcnic_82xx_check(adapter))
2762                 qlcnic_clr_all_drv_state(adapter, 0);
2763
2764         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2765
2766         qlcnic_free_lb_filters_mem(adapter);
2767
2768         qlcnic_teardown_intr(adapter);
2769
2770         qlcnic_remove_sysfs(adapter);
2771
2772         qlcnic_unregister_hwmon_dev(adapter);
2773
2774         qlcnic_cleanup_pci_map(adapter->ahw);
2775
2776         qlcnic_release_firmware(adapter);
2777
2778         pci_disable_pcie_error_reporting(pdev);
2779         pci_release_regions(pdev);
2780         pci_disable_device(pdev);
2781
2782         if (adapter->qlcnic_wq) {
2783                 destroy_workqueue(adapter->qlcnic_wq);
2784                 adapter->qlcnic_wq = NULL;
2785         }
2786
2787         qlcnic_free_adapter_resources(adapter);
2788         kfree(ahw);
2789         free_netdev(netdev);
2790 }
2791
2792 static void qlcnic_shutdown(struct pci_dev *pdev)
2793 {
2794         if (__qlcnic_shutdown(pdev))
2795                 return;
2796
2797         pci_disable_device(pdev);
2798 }
2799
2800 #ifdef CONFIG_PM
2801 static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2802 {
2803         int retval;
2804
2805         retval = __qlcnic_shutdown(pdev);
2806         if (retval)
2807                 return retval;
2808
2809         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2810         return 0;
2811 }
2812
2813 static int qlcnic_resume(struct pci_dev *pdev)
2814 {
2815         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2816         int err;
2817
2818         err = pci_enable_device(pdev);
2819         if (err)
2820                 return err;
2821
2822         pci_set_power_state(pdev, PCI_D0);
2823         pci_set_master(pdev);
2824         pci_restore_state(pdev);
2825
2826         return  __qlcnic_resume(adapter);
2827 }
2828 #endif
2829
2830 static int qlcnic_open(struct net_device *netdev)
2831 {
2832         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2833         int err;
2834
2835         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
2836                 netdev_err(netdev, "%s: Device is in non-operational state\n",
2837                            __func__);
2838
2839                 return -EIO;
2840         }
2841
2842         netif_carrier_off(netdev);
2843
2844         err = qlcnic_attach(adapter);
2845         if (err)
2846                 return err;
2847
2848         err = __qlcnic_up(adapter, netdev);
2849         if (err)
2850                 qlcnic_detach(adapter);
2851
2852         return err;
2853 }
2854
2855 /*
2856  * qlcnic_close - Disables a network interface entry point
2857  */
2858 static int qlcnic_close(struct net_device *netdev)
2859 {
2860         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2861
2862         __qlcnic_down(adapter, netdev);
2863
2864         return 0;
2865 }
2866
2867 #define QLCNIC_VF_LB_BUCKET_SIZE 1
2868
2869 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2870 {
2871         void *head;
2872         int i;
2873         struct net_device *netdev = adapter->netdev;
2874         u32 filter_size = 0;
2875         u16 act_pci_func = 0;
2876
2877         if (adapter->fhash.fmax && adapter->fhash.fhead)
2878                 return;
2879
2880         act_pci_func = adapter->ahw->total_nic_func;
2881         spin_lock_init(&adapter->mac_learn_lock);
2882         spin_lock_init(&adapter->rx_mac_learn_lock);
2883
2884         if (qlcnic_sriov_vf_check(adapter)) {
2885                 filter_size = QLCNIC_83XX_SRIOV_VF_MAX_MAC - 1;
2886                 adapter->fhash.fbucket_size = QLCNIC_VF_LB_BUCKET_SIZE;
2887         } else if (qlcnic_82xx_check(adapter)) {
2888                 filter_size = QLCNIC_LB_MAX_FILTERS;
2889                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2890         } else {
2891                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2892                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2893         }
2894
2895         head = kcalloc(adapter->fhash.fbucket_size,
2896                        sizeof(struct hlist_head), GFP_ATOMIC);
2897
2898         if (!head)
2899                 return;
2900
2901         adapter->fhash.fmax = (filter_size / act_pci_func);
2902         adapter->fhash.fhead = head;
2903
2904         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2905                     act_pci_func, adapter->fhash.fmax);
2906
2907         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2908                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2909
2910         adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2911
2912         head = kcalloc(adapter->rx_fhash.fbucket_size,
2913                        sizeof(struct hlist_head), GFP_ATOMIC);
2914
2915         if (!head)
2916                 return;
2917
2918         adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2919         adapter->rx_fhash.fhead = head;
2920
2921         for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2922                 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2923 }
2924
2925 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2926 {
2927         if (adapter->fhash.fmax)
2928                 kfree(adapter->fhash.fhead);
2929
2930         adapter->fhash.fhead = NULL;
2931         adapter->fhash.fmax = 0;
2932
2933         if (adapter->rx_fhash.fmax)
2934                 kfree(adapter->rx_fhash.fhead);
2935
2936         adapter->rx_fhash.fmax = 0;
2937         adapter->rx_fhash.fhead = NULL;
2938 }
2939
2940 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2941 {
2942         struct net_device *netdev = adapter->netdev;
2943         u32 temp_state, temp_val, temp = 0;
2944         int rv = 0;
2945
2946         if (qlcnic_83xx_check(adapter))
2947                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2948
2949         if (qlcnic_82xx_check(adapter))
2950                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2951
2952         temp_state = qlcnic_get_temp_state(temp);
2953         temp_val = qlcnic_get_temp_val(temp);
2954
2955         if (temp_state == QLCNIC_TEMP_PANIC) {
2956                 dev_err(&netdev->dev,
2957                        "Device temperature %d degrees C exceeds"
2958                        " maximum allowed. Hardware has been shut down.\n",
2959                        temp_val);
2960                 rv = 1;
2961         } else if (temp_state == QLCNIC_TEMP_WARN) {
2962                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2963                         dev_err(&netdev->dev,
2964                                "Device temperature %d degrees C "
2965                                "exceeds operating range."
2966                                " Immediate action needed.\n",
2967                                temp_val);
2968                 }
2969         } else {
2970                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2971                         dev_info(&netdev->dev,
2972                                "Device temperature is now %d degrees C"
2973                                " in normal range.\n", temp_val);
2974                 }
2975         }
2976         adapter->ahw->temp = temp_state;
2977         return rv;
2978 }
2979
2980 static inline void dump_tx_ring_desc(struct qlcnic_host_tx_ring *tx_ring)
2981 {
2982         int i;
2983         struct cmd_desc_type0 *tx_desc_info;
2984
2985         for (i = 0; i < tx_ring->num_desc; i++) {
2986                 tx_desc_info = &tx_ring->desc_head[i];
2987                 pr_info("TX Desc: %d\n", i);
2988                 print_hex_dump(KERN_INFO, "TX: ", DUMP_PREFIX_OFFSET, 16, 1,
2989                                &tx_ring->desc_head[i],
2990                                sizeof(struct cmd_desc_type0), true);
2991         }
2992 }
2993
2994 static void qlcnic_dump_rings(struct qlcnic_adapter *adapter)
2995 {
2996         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2997         struct net_device *netdev = adapter->netdev;
2998         struct qlcnic_host_rds_ring *rds_ring;
2999         struct qlcnic_host_sds_ring *sds_ring;
3000         struct qlcnic_host_tx_ring *tx_ring;
3001         int ring;
3002
3003         if (!netdev || !netif_running(netdev))
3004                 return;
3005
3006         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
3007                 rds_ring = &recv_ctx->rds_rings[ring];
3008                 if (!rds_ring)
3009                         continue;
3010                 netdev_info(netdev,
3011                             "rds_ring=%d crb_rcv_producer=%d producer=%u num_desc=%u\n",
3012                              ring, readl(rds_ring->crb_rcv_producer),
3013                              rds_ring->producer, rds_ring->num_desc);
3014         }
3015
3016         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3017                 sds_ring = &(recv_ctx->sds_rings[ring]);
3018                 if (!sds_ring)
3019                         continue;
3020                 netdev_info(netdev,
3021                             "sds_ring=%d crb_sts_consumer=%d consumer=%u crb_intr_mask=%d num_desc=%u\n",
3022                             ring, readl(sds_ring->crb_sts_consumer),
3023                             sds_ring->consumer, readl(sds_ring->crb_intr_mask),
3024                             sds_ring->num_desc);
3025         }
3026
3027         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3028                 tx_ring = &adapter->tx_ring[ring];
3029                 if (!tx_ring)
3030                         continue;
3031                 netdev_info(netdev, "Tx ring=%d Context Id=0x%x\n",
3032                             ring, tx_ring->ctx_id);
3033                 netdev_info(netdev,
3034                             "xmit_finished=%llu, xmit_called=%llu, xmit_on=%llu, xmit_off=%llu\n",
3035                             tx_ring->tx_stats.xmit_finished,
3036                             tx_ring->tx_stats.xmit_called,
3037                             tx_ring->tx_stats.xmit_on,
3038                             tx_ring->tx_stats.xmit_off);
3039
3040                 if (tx_ring->crb_intr_mask)
3041                         netdev_info(netdev, "crb_intr_mask=%d\n",
3042                                     readl(tx_ring->crb_intr_mask));
3043
3044                 netdev_info(netdev,
3045                             "hw_producer=%d, sw_producer=%d sw_consumer=%d, hw_consumer=%d\n",
3046                             readl(tx_ring->crb_cmd_producer),
3047                             tx_ring->producer, tx_ring->sw_consumer,
3048                             le32_to_cpu(*(tx_ring->hw_consumer)));
3049
3050                 netdev_info(netdev, "Total desc=%d, Available desc=%d\n",
3051                             tx_ring->num_desc, qlcnic_tx_avail(tx_ring));
3052
3053                 if (netif_msg_tx_err(adapter->ahw))
3054                         dump_tx_ring_desc(tx_ring);
3055         }
3056
3057 }
3058
3059 static void qlcnic_tx_timeout(struct net_device *netdev)
3060 {
3061         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3062
3063         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3064                 return;
3065
3066         qlcnic_dump_rings(adapter);
3067
3068         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS ||
3069             netif_msg_tx_err(adapter->ahw)) {
3070                 netdev_err(netdev, "Tx timeout, reset the adapter.\n");
3071                 if (qlcnic_82xx_check(adapter))
3072                         adapter->need_fw_reset = 1;
3073                 else if (qlcnic_83xx_check(adapter))
3074                         qlcnic_83xx_idc_request_reset(adapter,
3075                                                       QLCNIC_FORCE_FW_DUMP_KEY);
3076         } else {
3077                 netdev_err(netdev, "Tx timeout, reset adapter context.\n");
3078                 adapter->ahw->reset_context = 1;
3079         }
3080 }
3081
3082 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
3083 {
3084         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3085         struct net_device_stats *stats = &netdev->stats;
3086
3087         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
3088                 qlcnic_update_stats(adapter);
3089
3090         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
3091         stats->tx_packets = adapter->stats.xmitfinished;
3092         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
3093         stats->tx_bytes = adapter->stats.txbytes;
3094         stats->rx_dropped = adapter->stats.rxdropped;
3095         stats->tx_dropped = adapter->stats.txdropped;
3096
3097         return stats;
3098 }
3099
3100 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
3101 {
3102         u32 status;
3103
3104         status = readl(adapter->isr_int_vec);
3105
3106         if (!(status & adapter->ahw->int_vec_bit))
3107                 return IRQ_NONE;
3108
3109         /* check interrupt state machine, to be sure */
3110         status = readl(adapter->crb_int_state_reg);
3111         if (!ISR_LEGACY_INT_TRIGGERED(status))
3112                 return IRQ_NONE;
3113
3114         writel(0xffffffff, adapter->tgt_status_reg);
3115         /* read twice to ensure write is flushed */
3116         readl(adapter->isr_int_vec);
3117         readl(adapter->isr_int_vec);
3118
3119         return IRQ_HANDLED;
3120 }
3121
3122 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
3123 {
3124         struct qlcnic_host_sds_ring *sds_ring = data;
3125         struct qlcnic_adapter *adapter = sds_ring->adapter;
3126
3127         if (adapter->flags & QLCNIC_MSIX_ENABLED)
3128                 goto done;
3129         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
3130                 writel(0xffffffff, adapter->tgt_status_reg);
3131                 goto done;
3132         }
3133
3134         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3135                 return IRQ_NONE;
3136
3137 done:
3138         adapter->ahw->diag_cnt++;
3139         qlcnic_enable_sds_intr(adapter, sds_ring);
3140         return IRQ_HANDLED;
3141 }
3142
3143 static irqreturn_t qlcnic_intr(int irq, void *data)
3144 {
3145         struct qlcnic_host_sds_ring *sds_ring = data;
3146         struct qlcnic_adapter *adapter = sds_ring->adapter;
3147
3148         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3149                 return IRQ_NONE;
3150
3151         napi_schedule(&sds_ring->napi);
3152
3153         return IRQ_HANDLED;
3154 }
3155
3156 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
3157 {
3158         struct qlcnic_host_sds_ring *sds_ring = data;
3159         struct qlcnic_adapter *adapter = sds_ring->adapter;
3160
3161         /* clear interrupt */
3162         writel(0xffffffff, adapter->tgt_status_reg);
3163
3164         napi_schedule(&sds_ring->napi);
3165         return IRQ_HANDLED;
3166 }
3167
3168 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
3169 {
3170         struct qlcnic_host_sds_ring *sds_ring = data;
3171
3172         napi_schedule(&sds_ring->napi);
3173         return IRQ_HANDLED;
3174 }
3175
3176 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
3177 {
3178         struct qlcnic_host_tx_ring *tx_ring = data;
3179
3180         napi_schedule(&tx_ring->napi);
3181         return IRQ_HANDLED;
3182 }
3183
3184 #ifdef CONFIG_NET_POLL_CONTROLLER
3185 static void qlcnic_poll_controller(struct net_device *netdev)
3186 {
3187         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3188         struct qlcnic_host_sds_ring *sds_ring;
3189         struct qlcnic_recv_context *recv_ctx;
3190         struct qlcnic_host_tx_ring *tx_ring;
3191         int ring;
3192
3193         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3194                 return;
3195
3196         recv_ctx = adapter->recv_ctx;
3197
3198         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3199                 sds_ring = &recv_ctx->sds_rings[ring];
3200                 qlcnic_disable_sds_intr(adapter, sds_ring);
3201                 napi_schedule(&sds_ring->napi);
3202         }
3203
3204         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
3205                 /* Only Multi-Tx queue capable devices need to
3206                  * schedule NAPI for TX rings
3207                  */
3208                 if ((qlcnic_83xx_check(adapter) &&
3209                      (adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
3210                     (qlcnic_82xx_check(adapter) &&
3211                      !qlcnic_check_multi_tx(adapter)))
3212                         return;
3213
3214                 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3215                         tx_ring = &adapter->tx_ring[ring];
3216                         qlcnic_disable_tx_intr(adapter, tx_ring);
3217                         napi_schedule(&tx_ring->napi);
3218                 }
3219         }
3220 }
3221 #endif
3222
3223 static void
3224 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
3225 {
3226         u32 val;
3227
3228         val = adapter->portnum & 0xf;
3229         val |= encoding << 7;
3230         val |= (jiffies - adapter->dev_rst_time) << 8;
3231
3232         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
3233         adapter->dev_rst_time = jiffies;
3234 }
3235
3236 static int
3237 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
3238 {
3239         u32  val;
3240
3241         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
3242                         state != QLCNIC_DEV_NEED_QUISCENT);
3243
3244         if (qlcnic_api_lock(adapter))
3245                 return -EIO;
3246
3247         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3248
3249         if (state == QLCNIC_DEV_NEED_RESET)
3250                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3251         else if (state == QLCNIC_DEV_NEED_QUISCENT)
3252                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
3253
3254         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3255
3256         qlcnic_api_unlock(adapter);
3257
3258         return 0;
3259 }
3260
3261 static int
3262 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
3263 {
3264         u32  val;
3265
3266         if (qlcnic_api_lock(adapter))
3267                 return -EBUSY;
3268
3269         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3270         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3271         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3272
3273         qlcnic_api_unlock(adapter);
3274
3275         return 0;
3276 }
3277
3278 void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
3279 {
3280         u32  val;
3281
3282         if (qlcnic_api_lock(adapter))
3283                 goto err;
3284
3285         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3286         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
3287         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3288
3289         if (failed) {
3290                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3291                                     QLCNIC_DEV_FAILED);
3292                 dev_info(&adapter->pdev->dev,
3293                                 "Device state set to Failed. Please Reboot\n");
3294         } else if (!(val & 0x11111111))
3295                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3296                                     QLCNIC_DEV_COLD);
3297
3298         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3299         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3300         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3301
3302         qlcnic_api_unlock(adapter);
3303 err:
3304         adapter->fw_fail_cnt = 0;
3305         adapter->flags &= ~QLCNIC_FW_HANG;
3306         clear_bit(__QLCNIC_START_FW, &adapter->state);
3307         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3308 }
3309
3310 /* Grab api lock, before checking state */
3311 static int
3312 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
3313 {
3314         int act, state, active_mask;
3315         struct qlcnic_hardware_context *ahw = adapter->ahw;
3316
3317         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3318         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3319
3320         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
3321                 active_mask = (~(1 << (ahw->pci_func * 4)));
3322                 act = act & active_mask;
3323         }
3324
3325         if (((state & 0x11111111) == (act & 0x11111111)) ||
3326                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
3327                 return 0;
3328         else
3329                 return 1;
3330 }
3331
3332 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
3333 {
3334         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
3335
3336         if (val != QLCNIC_DRV_IDC_VER) {
3337                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
3338                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
3339         }
3340
3341         return 0;
3342 }
3343
3344 static int
3345 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
3346 {
3347         u32 val, prev_state;
3348         u8 dev_init_timeo = adapter->dev_init_timeo;
3349         u8 portnum = adapter->portnum;
3350         u8 ret;
3351
3352         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
3353                 return 1;
3354
3355         if (qlcnic_api_lock(adapter))
3356                 return -1;
3357
3358         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3359         if (!(val & (1 << (portnum * 4)))) {
3360                 QLC_DEV_SET_REF_CNT(val, portnum);
3361                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3362         }
3363
3364         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3365         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
3366
3367         switch (prev_state) {
3368         case QLCNIC_DEV_COLD:
3369                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3370                                     QLCNIC_DEV_INITIALIZING);
3371                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
3372                                     QLCNIC_DRV_IDC_VER);
3373                 qlcnic_idc_debug_info(adapter, 0);
3374                 qlcnic_api_unlock(adapter);
3375                 return 1;
3376
3377         case QLCNIC_DEV_READY:
3378                 ret = qlcnic_check_idc_ver(adapter);
3379                 qlcnic_api_unlock(adapter);
3380                 return ret;
3381
3382         case QLCNIC_DEV_NEED_RESET:
3383                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3384                 QLC_DEV_SET_RST_RDY(val, portnum);
3385                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3386                 break;
3387
3388         case QLCNIC_DEV_NEED_QUISCENT:
3389                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3390                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
3391                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3392                 break;
3393
3394         case QLCNIC_DEV_FAILED:
3395                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
3396                 qlcnic_api_unlock(adapter);
3397                 return -1;
3398
3399         case QLCNIC_DEV_INITIALIZING:
3400         case QLCNIC_DEV_QUISCENT:
3401                 break;
3402         }
3403
3404         qlcnic_api_unlock(adapter);
3405
3406         do {
3407                 msleep(1000);
3408                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3409
3410                 if (prev_state == QLCNIC_DEV_QUISCENT)
3411                         continue;
3412         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
3413
3414         if (!dev_init_timeo) {
3415                 dev_err(&adapter->pdev->dev,
3416                         "Waiting for device to initialize timeout\n");
3417                 return -1;
3418         }
3419
3420         if (qlcnic_api_lock(adapter))
3421                 return -1;
3422
3423         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3424         QLC_DEV_CLR_RST_QSCNT(val, portnum);
3425         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3426
3427         ret = qlcnic_check_idc_ver(adapter);
3428         qlcnic_api_unlock(adapter);
3429
3430         return ret;
3431 }
3432
3433 static void
3434 qlcnic_fwinit_work(struct work_struct *work)
3435 {
3436         struct qlcnic_adapter *adapter = container_of(work,
3437                         struct qlcnic_adapter, fw_work.work);
3438         u32 dev_state = 0xf;
3439         u32 val;
3440
3441         if (qlcnic_api_lock(adapter))
3442                 goto err_ret;
3443
3444         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3445         if (dev_state == QLCNIC_DEV_QUISCENT ||
3446             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3447                 qlcnic_api_unlock(adapter);
3448                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
3449                                                 FW_POLL_DELAY * 2);
3450                 return;
3451         }
3452
3453         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
3454                 qlcnic_api_unlock(adapter);
3455                 goto wait_npar;
3456         }
3457
3458         if (dev_state == QLCNIC_DEV_INITIALIZING ||
3459             dev_state == QLCNIC_DEV_READY) {
3460                 dev_info(&adapter->pdev->dev, "Detected state change from "
3461                                 "DEV_NEED_RESET, skipping ack check\n");
3462                 goto skip_ack_check;
3463         }
3464
3465         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
3466                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
3467                                         adapter->reset_ack_timeo);
3468                 goto skip_ack_check;
3469         }
3470
3471         if (!qlcnic_check_drv_state(adapter)) {
3472 skip_ack_check:
3473                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3474
3475                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
3476                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3477                                             QLCNIC_DEV_INITIALIZING);
3478                         set_bit(__QLCNIC_START_FW, &adapter->state);
3479                         QLCDB(adapter, DRV, "Restarting fw\n");
3480                         qlcnic_idc_debug_info(adapter, 0);
3481                         val = QLC_SHARED_REG_RD32(adapter,
3482                                                   QLCNIC_CRB_DRV_STATE);
3483                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3484                         QLC_SHARED_REG_WR32(adapter,
3485                                             QLCNIC_CRB_DRV_STATE, val);
3486                 }
3487
3488                 qlcnic_api_unlock(adapter);
3489
3490                 rtnl_lock();
3491                 if (qlcnic_check_fw_dump_state(adapter) &&
3492                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3493                         QLCDB(adapter, DRV, "Take FW dump\n");
3494                         qlcnic_dump_fw(adapter);
3495                         adapter->flags |= QLCNIC_FW_HANG;
3496                 }
3497                 rtnl_unlock();
3498
3499                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
3500                 if (!adapter->nic_ops->start_firmware(adapter)) {
3501                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3502                         adapter->fw_wait_cnt = 0;
3503                         return;
3504                 }
3505                 goto err_ret;
3506         }
3507
3508         qlcnic_api_unlock(adapter);
3509
3510 wait_npar:
3511         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3512         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
3513
3514         switch (dev_state) {
3515         case QLCNIC_DEV_READY:
3516                 if (!qlcnic_start_firmware(adapter)) {
3517                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3518                         adapter->fw_wait_cnt = 0;
3519                         return;
3520                 }
3521         case QLCNIC_DEV_FAILED:
3522                 break;
3523         default:
3524                 qlcnic_schedule_work(adapter,
3525                         qlcnic_fwinit_work, FW_POLL_DELAY);
3526                 return;
3527         }
3528
3529 err_ret:
3530         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
3531                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
3532         netif_device_attach(adapter->netdev);
3533         qlcnic_clr_all_drv_state(adapter, 0);
3534 }
3535
3536 static void
3537 qlcnic_detach_work(struct work_struct *work)
3538 {
3539         struct qlcnic_adapter *adapter = container_of(work,
3540                         struct qlcnic_adapter, fw_work.work);
3541         struct net_device *netdev = adapter->netdev;
3542         u32 status;
3543
3544         netif_device_detach(netdev);
3545
3546         /* Dont grab rtnl lock during Quiscent mode */
3547         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3548                 if (netif_running(netdev))
3549                         __qlcnic_down(adapter, netdev);
3550         } else
3551                 qlcnic_down(adapter, netdev);
3552
3553         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3554
3555         if (status & QLCNIC_RCODE_FATAL_ERROR) {
3556                 dev_err(&adapter->pdev->dev,
3557                         "Detaching the device: peg halt status1=0x%x\n",
3558                                         status);
3559
3560                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
3561                         dev_err(&adapter->pdev->dev,
3562                         "On board active cooling fan failed. "
3563                                 "Device has been halted.\n");
3564                         dev_err(&adapter->pdev->dev,
3565                                 "Replace the adapter.\n");
3566                 }
3567
3568                 goto err_ret;
3569         }
3570
3571         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
3572                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
3573                         adapter->ahw->temp);
3574                 goto err_ret;
3575         }
3576
3577         /* Dont ack if this instance is the reset owner */
3578         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3579                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
3580                         dev_err(&adapter->pdev->dev,
3581                                 "Failed to set driver state,"
3582                                         "detaching the device.\n");
3583                         goto err_ret;
3584                 }
3585         }
3586
3587         adapter->fw_wait_cnt = 0;
3588
3589         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3590
3591         return;
3592
3593 err_ret:
3594         netif_device_attach(netdev);
3595         qlcnic_clr_all_drv_state(adapter, 1);
3596 }
3597
3598 /*Transit NPAR state to NON Operational */
3599 static void
3600 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3601 {
3602         u32 state;
3603
3604         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3605         if (state == QLCNIC_DEV_NPAR_NON_OPER)
3606                 return;
3607
3608         if (qlcnic_api_lock(adapter))
3609                 return;
3610         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3611                             QLCNIC_DEV_NPAR_NON_OPER);
3612         qlcnic_api_unlock(adapter);
3613 }
3614
3615 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter,
3616                                           u32 key)
3617 {
3618         u32 state, xg_val = 0, gb_val = 0;
3619
3620         qlcnic_xg_set_xg0_mask(xg_val);
3621         qlcnic_xg_set_xg1_mask(xg_val);
3622         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3623         qlcnic_gb_set_gb0_mask(gb_val);
3624         qlcnic_gb_set_gb1_mask(gb_val);
3625         qlcnic_gb_set_gb2_mask(gb_val);
3626         qlcnic_gb_set_gb3_mask(gb_val);
3627         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3628         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3629                                 " on all ports\n");
3630         adapter->need_fw_reset = 1;
3631
3632         if (qlcnic_api_lock(adapter))
3633                 return;
3634
3635         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3636
3637         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
3638                 netdev_err(adapter->netdev, "%s: Device is in non-operational state\n",
3639                            __func__);
3640                 qlcnic_api_unlock(adapter);
3641
3642                 return;
3643         }
3644
3645         if (state == QLCNIC_DEV_READY) {
3646                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3647                                     QLCNIC_DEV_NEED_RESET);
3648                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3649                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3650                 qlcnic_idc_debug_info(adapter, 0);
3651         }
3652
3653         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3654                             QLCNIC_DEV_NPAR_NON_OPER);
3655         qlcnic_api_unlock(adapter);
3656 }
3657
3658 /* Transit to NPAR READY state from NPAR NOT READY state */
3659 static void
3660 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3661 {
3662         if (qlcnic_api_lock(adapter))
3663                 return;
3664
3665         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3666                             QLCNIC_DEV_NPAR_OPER);
3667         QLCDB(adapter, DRV, "NPAR operational state set\n");
3668
3669         qlcnic_api_unlock(adapter);
3670 }
3671
3672 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3673                           work_func_t func, int delay)
3674 {
3675         if (test_bit(__QLCNIC_AER, &adapter->state))
3676                 return;
3677
3678         INIT_DELAYED_WORK(&adapter->fw_work, func);
3679         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3680                            round_jiffies_relative(delay));
3681 }
3682
3683 static void
3684 qlcnic_attach_work(struct work_struct *work)
3685 {
3686         struct qlcnic_adapter *adapter = container_of(work,
3687                                 struct qlcnic_adapter, fw_work.work);
3688         struct net_device *netdev = adapter->netdev;
3689         u32 npar_state;
3690
3691         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3692                 npar_state = QLC_SHARED_REG_RD32(adapter,
3693                                                  QLCNIC_CRB_DEV_NPAR_STATE);
3694                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3695                         qlcnic_clr_all_drv_state(adapter, 0);
3696                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3697                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
3698                                                         FW_POLL_DELAY);
3699                 else
3700                         goto attach;
3701                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3702                 return;
3703         }
3704 attach:
3705         qlcnic_dcb_get_info(adapter->dcb);
3706
3707         if (netif_running(netdev)) {
3708                 if (qlcnic_up(adapter, netdev))
3709                         goto done;
3710
3711                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3712         }
3713
3714 done:
3715         netif_device_attach(netdev);
3716         adapter->fw_fail_cnt = 0;
3717         adapter->flags &= ~QLCNIC_FW_HANG;
3718         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3719         if (adapter->portnum == 0)
3720                 qlcnic_set_drv_version(adapter);
3721
3722         if (!qlcnic_clr_drv_state(adapter))
3723                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3724                                                         FW_POLL_DELAY);
3725 }
3726
3727 static int
3728 qlcnic_check_health(struct qlcnic_adapter *adapter)
3729 {
3730         struct qlcnic_hardware_context *ahw = adapter->ahw;
3731         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
3732         u32 state = 0, heartbeat;
3733         u32 peg_status;
3734         int err = 0;
3735
3736         if (qlcnic_check_temp(adapter))
3737                 goto detach;
3738
3739         if (adapter->need_fw_reset)
3740                 qlcnic_dev_request_reset(adapter, 0);
3741
3742         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3743         if (state == QLCNIC_DEV_NEED_RESET) {
3744                 qlcnic_set_npar_non_operational(adapter);
3745                 adapter->need_fw_reset = 1;
3746         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3747                 goto detach;
3748
3749         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3750         if (heartbeat != adapter->heartbeat) {
3751                 adapter->heartbeat = heartbeat;
3752                 adapter->fw_fail_cnt = 0;
3753                 if (adapter->need_fw_reset)
3754                         goto detach;
3755
3756                 if (ahw->reset_context && qlcnic_auto_fw_reset)
3757                         qlcnic_reset_hw_context(adapter);
3758
3759                 return 0;
3760         }
3761
3762         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3763                 return 0;
3764
3765         adapter->flags |= QLCNIC_FW_HANG;
3766
3767         qlcnic_dev_request_reset(adapter, 0);
3768
3769         if (qlcnic_auto_fw_reset)
3770                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3771
3772         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3773         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3774         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3775                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3776                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3777                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3778                         "PEG_NET_4_PC: 0x%x\n",
3779                         peg_status,
3780                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3781                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3782                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3783                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3784                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3785                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3786         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3787                 dev_err(&adapter->pdev->dev,
3788                         "Firmware aborted with error code 0x00006700. "
3789                                 "Device is being reset.\n");
3790 detach:
3791         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3792                 QLCNIC_DEV_NEED_RESET;
3793
3794         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3795                                                       &adapter->state)) {
3796
3797                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3798                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3799         } else if (!qlcnic_auto_fw_reset && fw_dump->enable &&
3800                    adapter->flags & QLCNIC_FW_RESET_OWNER) {
3801                 qlcnic_dump_fw(adapter);
3802         }
3803
3804         return 1;
3805 }
3806
3807 void qlcnic_fw_poll_work(struct work_struct *work)
3808 {
3809         struct qlcnic_adapter *adapter = container_of(work,
3810                                 struct qlcnic_adapter, fw_work.work);
3811
3812         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3813                 goto reschedule;
3814
3815
3816         if (qlcnic_check_health(adapter))
3817                 return;
3818
3819         if (adapter->fhash.fnum)
3820                 qlcnic_prune_lb_filters(adapter);
3821
3822 reschedule:
3823         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3824 }
3825
3826 static int qlcnic_is_first_func(struct pci_dev *pdev)
3827 {
3828         struct pci_dev *oth_pdev;
3829         int val = pdev->devfn;
3830
3831         while (val-- > 0) {
3832                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3833                         (pdev->bus), pdev->bus->number,
3834                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3835                 if (!oth_pdev)
3836                         continue;
3837
3838                 if (oth_pdev->current_state != PCI_D3cold) {
3839                         pci_dev_put(oth_pdev);
3840                         return 0;
3841                 }
3842                 pci_dev_put(oth_pdev);
3843         }
3844         return 1;
3845 }
3846
3847 static int qlcnic_attach_func(struct pci_dev *pdev)
3848 {
3849         int err, first_func;
3850         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3851         struct net_device *netdev = adapter->netdev;
3852
3853         pdev->error_state = pci_channel_io_normal;
3854
3855         err = pci_enable_device(pdev);
3856         if (err)
3857                 return err;
3858
3859         pci_set_master(pdev);
3860         pci_restore_state(pdev);
3861
3862         first_func = qlcnic_is_first_func(pdev);
3863
3864         if (qlcnic_api_lock(adapter))
3865                 return -EINVAL;
3866
3867         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3868                 adapter->need_fw_reset = 1;
3869                 set_bit(__QLCNIC_START_FW, &adapter->state);
3870                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3871                                     QLCNIC_DEV_INITIALIZING);
3872                 QLCDB(adapter, DRV, "Restarting fw\n");
3873         }
3874         qlcnic_api_unlock(adapter);
3875
3876         err = qlcnic_start_firmware(adapter);
3877         if (err)
3878                 return err;
3879
3880         qlcnic_clr_drv_state(adapter);
3881         kfree(adapter->msix_entries);
3882         adapter->msix_entries = NULL;
3883         err = qlcnic_setup_intr(adapter);
3884
3885         if (err) {
3886                 kfree(adapter->msix_entries);
3887                 netdev_err(netdev, "failed to setup interrupt\n");
3888                 return err;
3889         }
3890
3891         if (netif_running(netdev)) {
3892                 err = qlcnic_attach(adapter);
3893                 if (err) {
3894                         qlcnic_clr_all_drv_state(adapter, 1);
3895                         clear_bit(__QLCNIC_AER, &adapter->state);
3896                         netif_device_attach(netdev);
3897                         return err;
3898                 }
3899
3900                 err = qlcnic_up(adapter, netdev);
3901                 if (err)
3902                         goto done;
3903
3904                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3905         }
3906  done:
3907         netif_device_attach(netdev);
3908         return err;
3909 }
3910
3911 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
3912                                                       pci_channel_state_t state)
3913 {
3914         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3915         struct net_device *netdev = adapter->netdev;
3916
3917         if (state == pci_channel_io_perm_failure)
3918                 return PCI_ERS_RESULT_DISCONNECT;
3919
3920         if (state == pci_channel_io_normal)
3921                 return PCI_ERS_RESULT_RECOVERED;
3922
3923         set_bit(__QLCNIC_AER, &adapter->state);
3924         netif_device_detach(netdev);
3925
3926         cancel_delayed_work_sync(&adapter->fw_work);
3927
3928         if (netif_running(netdev))
3929                 qlcnic_down(adapter, netdev);
3930
3931         qlcnic_detach(adapter);
3932         qlcnic_teardown_intr(adapter);
3933
3934         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3935
3936         pci_save_state(pdev);
3937         pci_disable_device(pdev);
3938
3939         return PCI_ERS_RESULT_NEED_RESET;
3940 }
3941
3942 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
3943 {
3944         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3945                                 PCI_ERS_RESULT_RECOVERED;
3946 }
3947
3948 static void qlcnic_82xx_io_resume(struct pci_dev *pdev)
3949 {
3950         u32 state;
3951         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3952
3953         pci_cleanup_aer_uncorrect_error_status(pdev);
3954         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3955         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3956                                                             &adapter->state))
3957                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3958                                      FW_POLL_DELAY);
3959 }
3960
3961 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3962                                                  pci_channel_state_t state)
3963 {
3964         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3965         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3966
3967         if (hw_ops->io_error_detected) {
3968                 return hw_ops->io_error_detected(pdev, state);
3969         } else {
3970                 dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
3971                 return PCI_ERS_RESULT_DISCONNECT;
3972         }
3973 }
3974
3975 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3976 {
3977         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3978         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3979
3980         if (hw_ops->io_slot_reset) {
3981                 return hw_ops->io_slot_reset(pdev);
3982         } else {
3983                 dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
3984                 return PCI_ERS_RESULT_DISCONNECT;
3985         }
3986 }
3987
3988 static void qlcnic_io_resume(struct pci_dev *pdev)
3989 {
3990         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3991         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3992
3993         if (hw_ops->io_resume)
3994                 hw_ops->io_resume(pdev);
3995         else
3996                 dev_err(&pdev->dev, "AER resume handler not registered.\n");
3997 }
3998
3999
4000 static int
4001 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
4002 {
4003         int err;
4004
4005         err = qlcnic_can_start_firmware(adapter);
4006         if (err)
4007                 return err;
4008
4009         err = qlcnic_check_npar_opertional(adapter);
4010         if (err)
4011                 return err;
4012
4013         err = qlcnic_initialize_nic(adapter);
4014         if (err)
4015                 return err;
4016
4017         qlcnic_check_options(adapter);
4018
4019         err = qlcnic_set_eswitch_port_config(adapter);
4020         if (err)
4021                 return err;
4022
4023         adapter->need_fw_reset = 0;
4024
4025         return err;
4026 }
4027
4028 int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt,
4029                           int queue_type)
4030 {
4031         struct net_device *netdev = adapter->netdev;
4032         u8 max_hw_rings = 0;
4033         char buf[8];
4034         int cur_rings;
4035
4036         if (queue_type == QLCNIC_RX_QUEUE) {
4037                 max_hw_rings = adapter->max_sds_rings;
4038                 cur_rings = adapter->drv_sds_rings;
4039                 strcpy(buf, "SDS");
4040         } else if (queue_type == QLCNIC_TX_QUEUE) {
4041                 max_hw_rings = adapter->max_tx_rings;
4042                 cur_rings = adapter->drv_tx_rings;
4043                 strcpy(buf, "Tx");
4044         }
4045
4046         if (!is_power_of_2(ring_cnt)) {
4047                 netdev_err(netdev, "%s rings value should be a power of 2\n",
4048                            buf);
4049                 return -EINVAL;
4050         }
4051
4052         if (qlcnic_82xx_check(adapter) && (queue_type == QLCNIC_TX_QUEUE) &&
4053             !qlcnic_check_multi_tx(adapter)) {
4054                         netdev_err(netdev, "No Multi Tx queue support\n");
4055                         return -EINVAL;
4056         }
4057
4058         if (ring_cnt > num_online_cpus()) {
4059                 netdev_err(netdev,
4060                            "%s value[%u] should not be higher than, number of online CPUs\n",
4061                            buf, num_online_cpus());
4062                 return -EINVAL;
4063         }
4064
4065         return 0;
4066 }
4067
4068 int qlcnic_setup_rings(struct qlcnic_adapter *adapter)
4069 {
4070         struct net_device *netdev = adapter->netdev;
4071         u8 tx_rings, rx_rings;
4072         int err;
4073
4074         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
4075                 return -EBUSY;
4076
4077         tx_rings = adapter->drv_tss_rings;
4078         rx_rings = adapter->drv_rss_rings;
4079
4080         netif_device_detach(netdev);
4081
4082         err = qlcnic_set_real_num_queues(adapter, tx_rings, rx_rings);
4083         if (err)
4084                 goto done;
4085
4086         if (netif_running(netdev))
4087                 __qlcnic_down(adapter, netdev);
4088
4089         qlcnic_detach(adapter);
4090
4091         if (qlcnic_83xx_check(adapter)) {
4092                 qlcnic_83xx_free_mbx_intr(adapter);
4093                 qlcnic_83xx_enable_mbx_poll(adapter);
4094         }
4095
4096         qlcnic_teardown_intr(adapter);
4097
4098         err = qlcnic_setup_intr(adapter);
4099         if (err) {
4100                 kfree(adapter->msix_entries);
4101                 netdev_err(netdev, "failed to setup interrupt\n");
4102                 return err;
4103         }
4104
4105         /* Check if we need to update real_num_{tx|rx}_queues because
4106          * qlcnic_setup_intr() may change Tx/Rx rings size
4107          */
4108         if ((tx_rings != adapter->drv_tx_rings) ||
4109             (rx_rings != adapter->drv_sds_rings)) {
4110                 err = qlcnic_set_real_num_queues(adapter,
4111                                                  adapter->drv_tx_rings,
4112                                                  adapter->drv_sds_rings);
4113                 if (err)
4114                         goto done;
4115         }
4116
4117         if (qlcnic_83xx_check(adapter)) {
4118                 qlcnic_83xx_initialize_nic(adapter, 1);
4119                 err = qlcnic_83xx_setup_mbx_intr(adapter);
4120                 qlcnic_83xx_disable_mbx_poll(adapter);
4121                 if (err) {
4122                         dev_err(&adapter->pdev->dev,
4123                                 "failed to setup mbx interrupt\n");
4124                         goto done;
4125                 }
4126         }
4127
4128         if (netif_running(netdev)) {
4129                 err = qlcnic_attach(adapter);
4130                 if (err)
4131                         goto done;
4132                 err = __qlcnic_up(adapter, netdev);
4133                 if (err)
4134                         goto done;
4135                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
4136         }
4137 done:
4138         netif_device_attach(netdev);
4139         clear_bit(__QLCNIC_RESETTING, &adapter->state);
4140         return err;
4141 }
4142
4143 #ifdef CONFIG_INET
4144
4145 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4146
4147 static void
4148 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4149                         struct net_device *dev, unsigned long event)
4150 {
4151         struct in_device *indev;
4152
4153         indev = in_dev_get(dev);
4154         if (!indev)
4155                 return;
4156
4157         for_ifa(indev) {
4158                 switch (event) {
4159                 case NETDEV_UP:
4160                         qlcnic_config_ipaddr(adapter,
4161                                         ifa->ifa_address, QLCNIC_IP_UP);
4162                         break;
4163                 case NETDEV_DOWN:
4164                         qlcnic_config_ipaddr(adapter,
4165                                         ifa->ifa_address, QLCNIC_IP_DOWN);
4166                         break;
4167                 default:
4168                         break;
4169                 }
4170         } endfor_ifa(indev);
4171
4172         in_dev_put(indev);
4173 }
4174
4175 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4176 {
4177         struct qlcnic_adapter *adapter = netdev_priv(netdev);
4178         struct net_device *dev;
4179         u16 vid;
4180
4181         qlcnic_config_indev_addr(adapter, netdev, event);
4182
4183         rcu_read_lock();
4184         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
4185                 dev = __vlan_find_dev_deep_rcu(netdev, htons(ETH_P_8021Q), vid);
4186                 if (!dev)
4187                         continue;
4188                 qlcnic_config_indev_addr(adapter, dev, event);
4189         }
4190         rcu_read_unlock();
4191 }
4192
4193 static int qlcnic_netdev_event(struct notifier_block *this,
4194                                  unsigned long event, void *ptr)
4195 {
4196         struct qlcnic_adapter *adapter;
4197         struct net_device *dev = netdev_notifier_info_to_dev(ptr);
4198
4199 recheck:
4200         if (dev == NULL)
4201                 goto done;
4202
4203         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4204                 dev = vlan_dev_real_dev(dev);
4205                 goto recheck;
4206         }
4207
4208         if (!is_qlcnic_netdev(dev))
4209                 goto done;
4210
4211         adapter = netdev_priv(dev);
4212
4213         if (!adapter)
4214                 goto done;
4215
4216         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4217                 goto done;
4218
4219         qlcnic_config_indev_addr(adapter, dev, event);
4220 done:
4221         return NOTIFY_DONE;
4222 }
4223
4224 static int
4225 qlcnic_inetaddr_event(struct notifier_block *this,
4226                 unsigned long event, void *ptr)
4227 {
4228         struct qlcnic_adapter *adapter;
4229         struct net_device *dev;
4230
4231         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4232
4233         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4234
4235 recheck:
4236         if (dev == NULL)
4237                 goto done;
4238
4239         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4240                 dev = vlan_dev_real_dev(dev);
4241                 goto recheck;
4242         }
4243
4244         if (!is_qlcnic_netdev(dev))
4245                 goto done;
4246
4247         adapter = netdev_priv(dev);
4248
4249         if (!adapter)
4250                 goto done;
4251
4252         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4253                 goto done;
4254
4255         switch (event) {
4256         case NETDEV_UP:
4257                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4258
4259                 break;
4260         case NETDEV_DOWN:
4261                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4262
4263                 break;
4264         default:
4265                 break;
4266         }
4267
4268 done:
4269         return NOTIFY_DONE;
4270 }
4271
4272 static struct notifier_block    qlcnic_netdev_cb = {
4273         .notifier_call = qlcnic_netdev_event,
4274 };
4275
4276 static struct notifier_block qlcnic_inetaddr_cb = {
4277         .notifier_call = qlcnic_inetaddr_event,
4278 };
4279 #else
4280 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4281 { }
4282 #endif
4283 static const struct pci_error_handlers qlcnic_err_handler = {
4284         .error_detected = qlcnic_io_error_detected,
4285         .slot_reset = qlcnic_io_slot_reset,
4286         .resume = qlcnic_io_resume,
4287 };
4288
4289 static struct pci_driver qlcnic_driver = {
4290         .name = qlcnic_driver_name,
4291         .id_table = qlcnic_pci_tbl,
4292         .probe = qlcnic_probe,
4293         .remove = qlcnic_remove,
4294 #ifdef CONFIG_PM
4295         .suspend = qlcnic_suspend,
4296         .resume = qlcnic_resume,
4297 #endif
4298         .shutdown = qlcnic_shutdown,
4299         .err_handler = &qlcnic_err_handler,
4300 #ifdef CONFIG_QLCNIC_SRIOV
4301         .sriov_configure = qlcnic_pci_sriov_configure,
4302 #endif
4303
4304 };
4305
4306 static int __init qlcnic_init_module(void)
4307 {
4308         int ret;
4309
4310         printk(KERN_INFO "%s\n", qlcnic_driver_string);
4311
4312 #ifdef CONFIG_INET
4313         register_netdevice_notifier(&qlcnic_netdev_cb);
4314         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4315 #endif
4316
4317         ret = pci_register_driver(&qlcnic_driver);
4318         if (ret) {
4319 #ifdef CONFIG_INET
4320                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4321                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4322 #endif
4323         }
4324
4325         return ret;
4326 }
4327
4328 module_init(qlcnic_init_module);
4329
4330 static void __exit qlcnic_exit_module(void)
4331 {
4332         pci_unregister_driver(&qlcnic_driver);
4333
4334 #ifdef CONFIG_INET
4335         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4336         unregister_netdevice_notifier(&qlcnic_netdev_cb);
4337 #endif
4338 }
4339
4340 module_exit(qlcnic_exit_module);