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

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