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,
 380                         const unsigned char *addr, u16 vid)
 381 {
 382         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 383         int err = -EOPNOTSUPP;
 384
 385         if (!adapter->fdb_mac_learn)
 386                 return ndo_dflt_fdb_del(ndm, tb, netdev, addr, vid);
 387
 388         if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
 389             qlcnic_sriov_check(adapter)) {
 390                 if (is_unicast_ether_addr(addr)) {
 391                         err = dev_uc_del(netdev, addr);
 392                         if (!err)
 393                                 err = qlcnic_nic_del_mac(adapter, addr);
 394                 } else if (is_multicast_ether_addr(addr)) {
 395                         err = dev_mc_del(netdev, addr);
 396                 } else {
 397                         err =  -EINVAL;
 398                 }
 399         }
 400         return err;
 401 }
 402
 403 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 404                         struct net_device *netdev,
 405                         const unsigned char *addr, u16 vid, u16 flags)
 406 {
 407         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 408         int err = 0;
 409
 410         if (!adapter->fdb_mac_learn)
 411                 return ndo_dflt_fdb_add(ndm, tb, netdev, addr, vid, flags);
 412
 413         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) &&
 414             !qlcnic_sriov_check(adapter)) {
 415                 pr_info("%s: FDB e-switch is not enabled\n", __func__);
 416                 return -EOPNOTSUPP;
 417         }
 418
 419         if (ether_addr_equal(addr, adapter->mac_addr))
 420                 return err;
 421
 422         if (is_unicast_ether_addr(addr)) {
 423                 if (netdev_uc_count(netdev) < adapter->ahw->max_uc_count)
 424                         err = dev_uc_add_excl(netdev, addr);
 425                 else
 426                         err = -ENOMEM;
 427         } else if (is_multicast_ether_addr(addr)) {
 428                 err = dev_mc_add_excl(netdev, addr);
 429         } else {
 430                 err = -EINVAL;
 431         }
 432
 433         return err;
 434 }
 435
 436 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
 437                         struct net_device *netdev,
 438                         struct net_device *filter_dev, int idx)
 439 {
 440         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 441
 442         if (!adapter->fdb_mac_learn)
 443                 return ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
 444
 445         if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
 446             qlcnic_sriov_check(adapter))
 447                 idx = ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
 448
 449         return idx;
 450 }
 451
 452 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
 453 {
 454         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
 455                 usleep_range(10000, 11000);
 456
 457         if (!adapter->fw_work.work.func)
 458                 return;
 459
 460         cancel_delayed_work_sync(&adapter->fw_work);
 461 }
 462
 463 static int qlcnic_get_phys_port_id(struct net_device *netdev,
 464                                    struct netdev_phys_item_id *ppid)
 465 {
 466         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 467         struct qlcnic_hardware_context *ahw = adapter->ahw;
 468
 469         if (!(adapter->flags & QLCNIC_HAS_PHYS_PORT_ID))
 470                 return -EOPNOTSUPP;
 471
 472         ppid->id_len = sizeof(ahw->phys_port_id);
 473         memcpy(ppid->id, ahw->phys_port_id, ppid->id_len);
 474
 475         return 0;
 476 }
 477
 478 #ifdef CONFIG_QLCNIC_VXLAN
 479 static void qlcnic_add_vxlan_port(struct net_device *netdev,
 480                                   sa_family_t sa_family, __be16 port)
 481 {
 482         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 483         struct qlcnic_hardware_context *ahw = adapter->ahw;
 484
 485         /* Adapter supports only one VXLAN port. Use very first port
 486          * for enabling offload
 487          */
 488         if (!qlcnic_encap_rx_offload(adapter) || ahw->vxlan_port)
 489                 return;
 490
 491         ahw->vxlan_port = ntohs(port);
 492         adapter->flags |= QLCNIC_ADD_VXLAN_PORT;
 493 }
 494
 495 static void qlcnic_del_vxlan_port(struct net_device *netdev,
 496                                   sa_family_t sa_family, __be16 port)
 497 {
 498         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 499         struct qlcnic_hardware_context *ahw = adapter->ahw;
 500
 501         if (!qlcnic_encap_rx_offload(adapter) || !ahw->vxlan_port ||
 502             (ahw->vxlan_port != ntohs(port)))
 503                 return;
 504
 505         adapter->flags |= QLCNIC_DEL_VXLAN_PORT;
 506 }
 507
 508 static netdev_features_t qlcnic_features_check(struct sk_buff *skb,
 509                                                struct net_device *dev,
 510                                                netdev_features_t features)
 511 {
 512         return vxlan_features_check(skb, features);
 513 }
 514 #endif
 515
 516 static const struct net_device_ops qlcnic_netdev_ops = {
 517         .ndo_open          = qlcnic_open,
 518         .ndo_stop          = qlcnic_close,
 519         .ndo_start_xmit    = qlcnic_xmit_frame,
 520         .ndo_get_stats     = qlcnic_get_stats,
 521         .ndo_validate_addr = eth_validate_addr,
 522         .ndo_set_rx_mode   = qlcnic_set_multi,
 523         .ndo_set_mac_address    = qlcnic_set_mac,
 524         .ndo_change_mtu    = qlcnic_change_mtu,
 525         .ndo_fix_features  = qlcnic_fix_features,
 526         .ndo_set_features  = qlcnic_set_features,
 527         .ndo_tx_timeout    = qlcnic_tx_timeout,
 528         .ndo_vlan_rx_add_vid    = qlcnic_vlan_rx_add,
 529         .ndo_vlan_rx_kill_vid   = qlcnic_vlan_rx_del,
 530         .ndo_fdb_add            = qlcnic_fdb_add,
 531         .ndo_fdb_del            = qlcnic_fdb_del,
 532         .ndo_fdb_dump           = qlcnic_fdb_dump,
 533         .ndo_get_phys_port_id   = qlcnic_get_phys_port_id,
 534 #ifdef CONFIG_QLCNIC_VXLAN
 535         .ndo_add_vxlan_port     = qlcnic_add_vxlan_port,
 536         .ndo_del_vxlan_port     = qlcnic_del_vxlan_port,
 537         .ndo_features_check     = qlcnic_features_check,
 538 #endif
 539 #ifdef CONFIG_NET_POLL_CONTROLLER
 540         .ndo_poll_controller = qlcnic_poll_controller,
 541 #endif
 542 #ifdef CONFIG_QLCNIC_SRIOV
 543         .ndo_set_vf_mac         = qlcnic_sriov_set_vf_mac,
 544         .ndo_set_vf_rate        = qlcnic_sriov_set_vf_tx_rate,
 545         .ndo_get_vf_config      = qlcnic_sriov_get_vf_config,
 546         .ndo_set_vf_vlan        = qlcnic_sriov_set_vf_vlan,
 547         .ndo_set_vf_spoofchk    = qlcnic_sriov_set_vf_spoofchk,
 548 #endif
 549 };
 550
 551 static const struct net_device_ops qlcnic_netdev_failed_ops = {
 552         .ndo_open          = qlcnic_open,
 553 };
 554
 555 static struct qlcnic_nic_template qlcnic_ops = {
 556         .config_bridged_mode    = qlcnic_config_bridged_mode,
 557         .config_led             = qlcnic_82xx_config_led,
 558         .start_firmware         = qlcnic_82xx_start_firmware,
 559         .request_reset          = qlcnic_82xx_dev_request_reset,
 560         .cancel_idc_work        = qlcnic_82xx_cancel_idc_work,
 561         .napi_add               = qlcnic_82xx_napi_add,
 562         .napi_del               = qlcnic_82xx_napi_del,
 563         .config_ipaddr          = qlcnic_82xx_config_ipaddr,
 564         .shutdown               = qlcnic_82xx_shutdown,
 565         .resume                 = qlcnic_82xx_resume,
 566         .clear_legacy_intr      = qlcnic_82xx_clear_legacy_intr,
 567 };
 568
 569 struct qlcnic_nic_template qlcnic_vf_ops = {
 570         .config_bridged_mode    = qlcnicvf_config_bridged_mode,
 571         .config_led             = qlcnicvf_config_led,
 572         .start_firmware         = qlcnicvf_start_firmware
 573 };
 574
 575 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
 576         .read_crb                       = qlcnic_82xx_read_crb,
 577         .write_crb                      = qlcnic_82xx_write_crb,
 578         .read_reg                       = qlcnic_82xx_hw_read_wx_2M,
 579         .write_reg                      = qlcnic_82xx_hw_write_wx_2M,
 580         .get_mac_address                = qlcnic_82xx_get_mac_address,
 581         .setup_intr                     = qlcnic_82xx_setup_intr,
 582         .alloc_mbx_args                 = qlcnic_82xx_alloc_mbx_args,
 583         .mbx_cmd                        = qlcnic_82xx_issue_cmd,
 584         .get_func_no                    = qlcnic_82xx_get_func_no,
 585         .api_lock                       = qlcnic_82xx_api_lock,
 586         .api_unlock                     = qlcnic_82xx_api_unlock,
 587         .add_sysfs                      = qlcnic_82xx_add_sysfs,
 588         .remove_sysfs                   = qlcnic_82xx_remove_sysfs,
 589         .process_lb_rcv_ring_diag       = qlcnic_82xx_process_rcv_ring_diag,
 590         .create_rx_ctx                  = qlcnic_82xx_fw_cmd_create_rx_ctx,
 591         .create_tx_ctx                  = qlcnic_82xx_fw_cmd_create_tx_ctx,
 592         .del_rx_ctx                     = qlcnic_82xx_fw_cmd_del_rx_ctx,
 593         .del_tx_ctx                     = qlcnic_82xx_fw_cmd_del_tx_ctx,
 594         .setup_link_event               = qlcnic_82xx_linkevent_request,
 595         .get_nic_info                   = qlcnic_82xx_get_nic_info,
 596         .get_pci_info                   = qlcnic_82xx_get_pci_info,
 597         .set_nic_info                   = qlcnic_82xx_set_nic_info,
 598         .change_macvlan                 = qlcnic_82xx_sre_macaddr_change,
 599         .napi_enable                    = qlcnic_82xx_napi_enable,
 600         .napi_disable                   = qlcnic_82xx_napi_disable,
 601         .config_intr_coal               = qlcnic_82xx_config_intr_coalesce,
 602         .config_rss                     = qlcnic_82xx_config_rss,
 603         .config_hw_lro                  = qlcnic_82xx_config_hw_lro,
 604         .config_loopback                = qlcnic_82xx_set_lb_mode,
 605         .clear_loopback                 = qlcnic_82xx_clear_lb_mode,
 606         .config_promisc_mode            = qlcnic_82xx_nic_set_promisc,
 607         .change_l2_filter               = qlcnic_82xx_change_filter,
 608         .get_board_info                 = qlcnic_82xx_get_board_info,
 609         .set_mac_filter_count           = qlcnic_82xx_set_mac_filter_count,
 610         .free_mac_list                  = qlcnic_82xx_free_mac_list,
 611         .read_phys_port_id              = qlcnic_82xx_read_phys_port_id,
 612         .io_error_detected              = qlcnic_82xx_io_error_detected,
 613         .io_slot_reset                  = qlcnic_82xx_io_slot_reset,
 614         .io_resume                      = qlcnic_82xx_io_resume,
 615         .get_beacon_state               = qlcnic_82xx_get_beacon_state,
 616         .enable_sds_intr                = qlcnic_82xx_enable_sds_intr,
 617         .disable_sds_intr               = qlcnic_82xx_disable_sds_intr,
 618         .enable_tx_intr                 = qlcnic_82xx_enable_tx_intr,
 619         .disable_tx_intr                = qlcnic_82xx_disable_tx_intr,
 620         .get_saved_state                = qlcnic_82xx_get_saved_state,
 621         .set_saved_state                = qlcnic_82xx_set_saved_state,
 622         .cache_tmpl_hdr_values          = qlcnic_82xx_cache_tmpl_hdr_values,
 623         .get_cap_size                   = qlcnic_82xx_get_cap_size,
 624         .set_sys_info                   = qlcnic_82xx_set_sys_info,
 625         .store_cap_mask                 = qlcnic_82xx_store_cap_mask,
 626 };
 627
 628 static int qlcnic_check_multi_tx_capability(struct qlcnic_adapter *adapter)
 629 {
 630         struct qlcnic_hardware_context *ahw = adapter->ahw;
 631
 632         if (qlcnic_82xx_check(adapter) &&
 633             (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_MULTI_TX)) {
 634                 test_and_set_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
 635                 return 0;
 636         } else {
 637                 return 1;
 638         }
 639 }
 640
 641 static int qlcnic_max_rings(struct qlcnic_adapter *adapter, u8 ring_cnt,
 642                             int queue_type)
 643 {
 644         int num_rings, max_rings = QLCNIC_MAX_SDS_RINGS;
 645
 646         if (queue_type == QLCNIC_RX_QUEUE)
 647                 max_rings = adapter->max_sds_rings;
 648         else if (queue_type == QLCNIC_TX_QUEUE)
 649                 max_rings = adapter->max_tx_rings;
 650
 651         num_rings = rounddown_pow_of_two(min_t(int, num_online_cpus(),
 652                                               max_rings));
 653
 654         if (ring_cnt > num_rings)
 655                 return num_rings;
 656         else
 657                 return ring_cnt;
 658 }
 659
 660 void qlcnic_set_tx_ring_count(struct qlcnic_adapter *adapter, u8 tx_cnt)
 661 {
 662         /* 83xx adapter does not have max_tx_rings intialized in probe */
 663         if (adapter->max_tx_rings)
 664                 adapter->drv_tx_rings = qlcnic_max_rings(adapter, tx_cnt,
 665                                                          QLCNIC_TX_QUEUE);
 666         else
 667                 adapter->drv_tx_rings = tx_cnt;
 668 }
 669
 670 void qlcnic_set_sds_ring_count(struct qlcnic_adapter *adapter, u8 rx_cnt)
 671 {
 672         /* 83xx adapter does not have max_sds_rings intialized in probe */
 673         if (adapter->max_sds_rings)
 674                 adapter->drv_sds_rings = qlcnic_max_rings(adapter, rx_cnt,
 675                                                           QLCNIC_RX_QUEUE);
 676         else
 677                 adapter->drv_sds_rings = rx_cnt;
 678 }
 679
 680 int qlcnic_setup_tss_rss_intr(struct qlcnic_adapter *adapter)
 681 {
 682         struct pci_dev *pdev = adapter->pdev;
 683         int num_msix = 0, err = 0, vector;
 684
 685         adapter->flags &= ~QLCNIC_TSS_RSS;
 686
 687         if (adapter->drv_tss_rings > 0)
 688                 num_msix += adapter->drv_tss_rings;
 689         else
 690                 num_msix += adapter->drv_tx_rings;
 691
 692         if (adapter->drv_rss_rings > 0)
 693                 num_msix += adapter->drv_rss_rings;
 694         else
 695                 num_msix += adapter->drv_sds_rings;
 696
 697         if (qlcnic_83xx_check(adapter))
 698                 num_msix += 1;
 699
 700         if (!adapter->msix_entries) {
 701                 adapter->msix_entries = kcalloc(num_msix,
 702                                                 sizeof(struct msix_entry),
 703                                                 GFP_KERNEL);
 704                 if (!adapter->msix_entries)
 705                         return -ENOMEM;
 706         }
 707
 708         for (vector = 0; vector < num_msix; vector++)
 709                 adapter->msix_entries[vector].entry = vector;
 710
 711 restore:
 712         err = pci_enable_msix_exact(pdev, adapter->msix_entries, num_msix);
 713         if (err == -ENOSPC) {
 714                 if (!adapter->drv_tss_rings && !adapter->drv_rss_rings)
 715                         return err;
 716
 717                 netdev_info(adapter->netdev,
 718                             "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
 719                             num_msix, err);
 720
 721                 num_msix = adapter->drv_tx_rings + adapter->drv_sds_rings;
 722
 723                 /* Set rings to 0 so we can restore original TSS/RSS count */
 724                 adapter->drv_tss_rings = 0;
 725                 adapter->drv_rss_rings = 0;
 726
 727                 if (qlcnic_83xx_check(adapter))
 728                         num_msix += 1;
 729
 730                 netdev_info(adapter->netdev,
 731                             "Restoring %d Tx, %d SDS rings for total %d vectors.\n",
 732                             adapter->drv_tx_rings, adapter->drv_sds_rings,
 733                             num_msix);
 734
 735                 goto restore;
 736         } else if (err < 0) {
 737                 return err;
 738         }
 739
 740         adapter->ahw->num_msix = num_msix;
 741         if (adapter->drv_tss_rings > 0)
 742                 adapter->drv_tx_rings = adapter->drv_tss_rings;
 743
 744         if (adapter->drv_rss_rings > 0)
 745                 adapter->drv_sds_rings = adapter->drv_rss_rings;
 746
 747         return 0;
 748 }
 749
 750 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 751 {
 752         struct pci_dev *pdev = adapter->pdev;
 753         int err, vector;
 754
 755         if (!adapter->msix_entries) {
 756                 adapter->msix_entries = kcalloc(num_msix,
 757                                                 sizeof(struct msix_entry),
 758                                                 GFP_KERNEL);
 759                 if (!adapter->msix_entries)
 760                         return -ENOMEM;
 761         }
 762
 763         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 764
 765         if (adapter->ahw->msix_supported) {
 766 enable_msix:
 767                 for (vector = 0; vector < num_msix; vector++)
 768                         adapter->msix_entries[vector].entry = vector;
 769
 770                 err = pci_enable_msix_range(pdev,
 771                                             adapter->msix_entries, 1, num_msix);
 772
 773                 if (err == num_msix) {
 774                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 775                         adapter->ahw->num_msix = num_msix;
 776                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 777                         return 0;
 778                 } else if (err > 0) {
 779                         pci_disable_msix(pdev);
 780
 781                         dev_info(&pdev->dev,
 782                                  "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
 783                                  num_msix, err);
 784
 785                         if (qlcnic_82xx_check(adapter)) {
 786                                 num_msix = rounddown_pow_of_two(err);
 787                                 if (err < QLCNIC_82XX_MINIMUM_VECTOR)
 788                                         return -ENOSPC;
 789                         } else {
 790                                 num_msix = rounddown_pow_of_two(err - 1);
 791                                 num_msix += 1;
 792                                 if (err < QLCNIC_83XX_MINIMUM_VECTOR)
 793                                         return -ENOSPC;
 794                         }
 795
 796                         if (qlcnic_82xx_check(adapter) &&
 797                             !qlcnic_check_multi_tx(adapter)) {
 798                                 adapter->drv_sds_rings = num_msix;
 799                                 adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
 800                         } else {
 801                                 /* Distribute vectors equally */
 802                                 adapter->drv_tx_rings = num_msix / 2;
 803                                 adapter->drv_sds_rings = adapter->drv_tx_rings;
 804                         }
 805
 806                         if (num_msix) {
 807                                 dev_info(&pdev->dev,
 808                                          "Trying to allocate %d MSI-X interrupt vectors\n",
 809                                          num_msix);
 810                                 goto enable_msix;
 811                         }
 812                 } else {
 813                         dev_info(&pdev->dev,
 814                                  "Unable to allocate %d MSI-X vectors, err=%d\n",
 815                                  num_msix, err);
 816                         return err;
 817                 }
 818         }
 819
 820         return -EIO;
 821 }
 822
 823 static int qlcnic_82xx_calculate_msix_vector(struct qlcnic_adapter *adapter)
 824 {
 825         int num_msix;
 826
 827         num_msix = adapter->drv_sds_rings;
 828
 829         if (qlcnic_check_multi_tx(adapter))
 830                 num_msix += adapter->drv_tx_rings;
 831         else
 832                 num_msix += QLCNIC_SINGLE_RING;
 833
 834         return num_msix;
 835 }
 836
 837 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
 838 {
 839         int err = 0;
 840         u32 offset, mask_reg;
 841         const struct qlcnic_legacy_intr_set *legacy_intrp;
 842         struct qlcnic_hardware_context *ahw = adapter->ahw;
 843         struct pci_dev *pdev = adapter->pdev;
 844
 845         if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
 846                 adapter->flags |= QLCNIC_MSI_ENABLED;
 847                 offset = msi_tgt_status[adapter->ahw->pci_func];
 848                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
 849                                                             offset);
 850                 dev_info(&pdev->dev, "using msi interrupts\n");
 851                 adapter->msix_entries[0].vector = pdev->irq;
 852                 return err;
 853         }
 854
 855         if (qlcnic_use_msi || qlcnic_use_msi_x)
 856                 return -EOPNOTSUPP;
 857
 858         legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
 859         adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
 860         offset = legacy_intrp->tgt_status_reg;
 861         adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
 862         mask_reg = legacy_intrp->tgt_mask_reg;
 863         adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
 864         adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
 865         adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
 866         dev_info(&pdev->dev, "using legacy interrupts\n");
 867         adapter->msix_entries[0].vector = pdev->irq;
 868         return err;
 869 }
 870
 871 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter)
 872 {
 873         int num_msix, err = 0;
 874
 875         if (adapter->flags & QLCNIC_TSS_RSS) {
 876                 err = qlcnic_setup_tss_rss_intr(adapter);
 877                 if (err < 0)
 878                         return err;
 879                 num_msix = adapter->ahw->num_msix;
 880         } else {
 881                 num_msix = qlcnic_82xx_calculate_msix_vector(adapter);
 882
 883                 err = qlcnic_enable_msix(adapter, num_msix);
 884                 if (err == -ENOMEM)
 885                         return err;
 886
 887                 if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
 888                         qlcnic_disable_multi_tx(adapter);
 889                         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
 890
 891                         err = qlcnic_enable_msi_legacy(adapter);
 892                         if (err)
 893                                 return err;
 894                 }
 895         }
 896
 897         return 0;
 898 }
 899
 900 int qlcnic_82xx_mq_intrpt(struct qlcnic_adapter *adapter, int op_type)
 901 {
 902         struct qlcnic_hardware_context *ahw = adapter->ahw;
 903         int err, i;
 904
 905         if (qlcnic_check_multi_tx(adapter) &&
 906             !ahw->diag_test &&
 907             (adapter->flags & QLCNIC_MSIX_ENABLED)) {
 908                 ahw->intr_tbl = vzalloc(ahw->num_msix *
 909                                         sizeof(struct qlcnic_intrpt_config));
 910                 if (!ahw->intr_tbl)
 911                         return -ENOMEM;
 912
 913                 for (i = 0; i < ahw->num_msix; i++) {
 914                         ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
 915                         ahw->intr_tbl[i].id = i;
 916                         ahw->intr_tbl[i].src = 0;
 917                 }
 918
 919                 err = qlcnic_82xx_config_intrpt(adapter, 1);
 920                 if (err)
 921                         dev_err(&adapter->pdev->dev,
 922                                 "Failed to configure Interrupt for %d vector\n",
 923                                 ahw->num_msix);
 924                 return err;
 925         }
 926
 927         return 0;
 928 }
 929
 930 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 931 {
 932         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 933                 pci_disable_msix(adapter->pdev);
 934         if (adapter->flags & QLCNIC_MSI_ENABLED)
 935                 pci_disable_msi(adapter->pdev);
 936
 937         kfree(adapter->msix_entries);
 938         adapter->msix_entries = NULL;
 939
 940         if (adapter->ahw->intr_tbl) {
 941                 vfree(adapter->ahw->intr_tbl);
 942                 adapter->ahw->intr_tbl = NULL;
 943         }
 944 }
 945
 946 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
 947 {
 948         if (ahw->pci_base0 != NULL)
 949                 iounmap(ahw->pci_base0);
 950 }
 951
 952 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
 953 {
 954         struct qlcnic_hardware_context *ahw = adapter->ahw;
 955         struct qlcnic_pci_info *pci_info;
 956         int ret;
 957
 958         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 959                 switch (ahw->port_type) {
 960                 case QLCNIC_GBE:
 961                         ahw->total_nic_func = QLCNIC_NIU_MAX_GBE_PORTS;
 962                         break;
 963                 case QLCNIC_XGBE:
 964                         ahw->total_nic_func = QLCNIC_NIU_MAX_XG_PORTS;
 965                         break;
 966                 }
 967                 return 0;
 968         }
 969
 970         if (ahw->op_mode == QLCNIC_MGMT_FUNC)
 971                 return 0;
 972
 973         pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
 974         if (!pci_info)
 975                 return -ENOMEM;
 976
 977         ret = qlcnic_get_pci_info(adapter, pci_info);
 978         kfree(pci_info);
 979         return ret;
 980 }
 981
 982 static bool qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter *adapter)
 983 {
 984         bool ret = false;
 985
 986         if (qlcnic_84xx_check(adapter)) {
 987                 ret = true;
 988         } else if (qlcnic_83xx_check(adapter)) {
 989                 if (adapter->ahw->extra_capability[0] &
 990                     QLCNIC_FW_CAPABILITY_2_PER_PORT_ESWITCH_CFG)
 991                         ret = true;
 992                 else
 993                         ret = false;
 994         }
 995
 996         return ret;
 997 }
 998
 999 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
1000 {
1001         struct qlcnic_hardware_context *ahw = adapter->ahw;
1002         struct qlcnic_pci_info *pci_info;
1003         int i, id = 0, ret = 0, j = 0;
1004         u16 act_pci_func;
1005         u8 pfn;
1006
1007         pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
1008         if (!pci_info)
1009                 return -ENOMEM;
1010
1011         ret = qlcnic_get_pci_info(adapter, pci_info);
1012         if (ret)
1013                 goto err_pci_info;
1014
1015         act_pci_func = ahw->total_nic_func;
1016
1017         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
1018                                  act_pci_func, GFP_KERNEL);
1019         if (!adapter->npars) {
1020                 ret = -ENOMEM;
1021                 goto err_pci_info;
1022         }
1023
1024         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
1025                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
1026         if (!adapter->eswitch) {
1027                 ret = -ENOMEM;
1028                 goto err_npars;
1029         }
1030
1031         for (i = 0; i < ahw->max_vnic_func; i++) {
1032                 pfn = pci_info[i].id;
1033
1034                 if (pfn >= ahw->max_vnic_func) {
1035                         ret = QL_STATUS_INVALID_PARAM;
1036                         dev_err(&adapter->pdev->dev, "%s: Invalid function 0x%x, max 0x%x\n",
1037                                 __func__, pfn, ahw->max_vnic_func);
1038                         goto err_eswitch;
1039                 }
1040
1041                 if (!pci_info[i].active ||
1042                     (pci_info[i].type != QLCNIC_TYPE_NIC))
1043                         continue;
1044
1045                 if (qlcnic_port_eswitch_cfg_capability(adapter)) {
1046                         if (!qlcnic_83xx_set_port_eswitch_status(adapter, pfn,
1047                                                                  &id))
1048                                 adapter->npars[j].eswitch_status = true;
1049                         else
1050                                 continue;
1051                 } else {
1052                         adapter->npars[j].eswitch_status = true;
1053                 }
1054
1055                 adapter->npars[j].pci_func = pfn;
1056                 adapter->npars[j].active = (u8)pci_info[i].active;
1057                 adapter->npars[j].type = (u8)pci_info[i].type;
1058                 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
1059                 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
1060                 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
1061
1062                 memcpy(&adapter->npars[j].mac, &pci_info[i].mac, ETH_ALEN);
1063                 j++;
1064         }
1065
1066         /* Update eSwitch status for adapters without per port eSwitch
1067          * configuration capability
1068          */
1069         if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
1070                 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
1071                         adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
1072         }
1073
1074         kfree(pci_info);
1075         return 0;
1076
1077 err_eswitch:
1078         kfree(adapter->eswitch);
1079         adapter->eswitch = NULL;
1080 err_npars:
1081         kfree(adapter->npars);
1082         adapter->npars = NULL;
1083 err_pci_info:
1084         kfree(pci_info);
1085
1086         return ret;
1087 }
1088
1089 static int
1090 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
1091 {
1092         u8 id;
1093         int ret;
1094         u32 data = QLCNIC_MGMT_FUNC;
1095         struct qlcnic_hardware_context *ahw = adapter->ahw;
1096
1097         ret = qlcnic_api_lock(adapter);
1098         if (ret)
1099                 goto err_lock;
1100
1101         id = ahw->pci_func;
1102         data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1103         data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
1104                QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
1105         QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
1106         qlcnic_api_unlock(adapter);
1107 err_lock:
1108         return ret;
1109 }
1110
1111 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
1112                             const struct pci_device_id *ent)
1113 {
1114         u32 op_mode, priv_level;
1115
1116         /* Determine FW API version */
1117         adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
1118                                                            QLCNIC_FW_API);
1119
1120         /* Find PCI function number */
1121         qlcnic_get_func_no(adapter);
1122
1123         /* Determine function privilege level */
1124         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1125         if (op_mode == QLC_DEV_DRV_DEFAULT)
1126                 priv_level = QLCNIC_MGMT_FUNC;
1127         else
1128                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1129
1130         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
1131                 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
1132                 dev_info(&adapter->pdev->dev,
1133                         "HAL Version: %d Non Privileged function\n",
1134                          adapter->ahw->fw_hal_version);
1135                 adapter->nic_ops = &qlcnic_vf_ops;
1136         } else
1137                 adapter->nic_ops = &qlcnic_ops;
1138 }
1139
1140 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
1141 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
1142 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
1143 {
1144         switch (dev_id) {
1145         case PCI_DEVICE_ID_QLOGIC_QLE824X:
1146                 *bar = QLCNIC_82XX_BAR0_LENGTH;
1147                 break;
1148         case PCI_DEVICE_ID_QLOGIC_QLE834X:
1149         case PCI_DEVICE_ID_QLOGIC_QLE8830:
1150         case PCI_DEVICE_ID_QLOGIC_QLE844X:
1151         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
1152         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
1153                 *bar = QLCNIC_83XX_BAR0_LENGTH;
1154                 break;
1155         default:
1156                 *bar = 0;
1157         }
1158 }
1159
1160 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
1161                                 struct qlcnic_hardware_context *ahw)
1162 {
1163         u32 offset;
1164         void __iomem *mem_ptr0 = NULL;
1165         unsigned long mem_len, pci_len0 = 0, bar0_len;
1166
1167         /* remap phys address */
1168         mem_len = pci_resource_len(pdev, 0);
1169
1170         qlcnic_get_bar_length(pdev->device, &bar0_len);
1171         if (mem_len >= bar0_len) {
1172
1173                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
1174                 if (mem_ptr0 == NULL) {
1175                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
1176                         return -EIO;
1177                 }
1178                 pci_len0 = mem_len;
1179         } else {
1180                 return -EIO;
1181         }
1182
1183         dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
1184
1185         ahw->pci_base0 = mem_ptr0;
1186         ahw->pci_len0 = pci_len0;
1187         offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
1188         qlcnic_get_ioaddr(ahw, offset);
1189
1190         return 0;
1191 }
1192
1193 static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
1194                                          int index)
1195 {
1196         struct pci_dev *pdev = adapter->pdev;
1197         unsigned short subsystem_vendor;
1198         bool ret = true;
1199
1200         subsystem_vendor = pdev->subsystem_vendor;
1201
1202         if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
1203             pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1204                 if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
1205                     qlcnic_boards[index].sub_device == pdev->subsystem_device)
1206                         ret = true;
1207                 else
1208                         ret = false;
1209         }
1210
1211         return ret;
1212 }
1213
1214 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
1215 {
1216         struct pci_dev *pdev = adapter->pdev;
1217         int i, found = 0;
1218
1219         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1220                 if (qlcnic_boards[i].vendor == pdev->vendor &&
1221                     qlcnic_boards[i].device == pdev->device &&
1222                     qlcnic_validate_subsystem_id(adapter, i)) {
1223                         found = 1;
1224                         break;
1225                 }
1226         }
1227
1228         if (!found)
1229                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
1230         else
1231                 sprintf(name, "%pM: %s" , adapter->mac_addr,
1232                         qlcnic_boards[i].short_name);
1233 }
1234
1235 static void
1236 qlcnic_check_options(struct qlcnic_adapter *adapter)
1237 {
1238         int err;
1239         u32 fw_major, fw_minor, fw_build, prev_fw_version;
1240         struct pci_dev *pdev = adapter->pdev;
1241         struct qlcnic_hardware_context *ahw = adapter->ahw;
1242         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
1243
1244         prev_fw_version = adapter->fw_version;
1245
1246         fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
1247         fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
1248         fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
1249
1250         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
1251
1252         err = qlcnic_get_board_info(adapter);
1253         if (err) {
1254                 dev_err(&pdev->dev, "Error getting board config info.\n");
1255                 return;
1256         }
1257         if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
1258                 if (fw_dump->tmpl_hdr == NULL ||
1259                                 adapter->fw_version > prev_fw_version) {
1260                         if (fw_dump->tmpl_hdr)
1261                                 vfree(fw_dump->tmpl_hdr);
1262                         if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1263                                 dev_info(&pdev->dev,
1264                                         "Supports FW dump capability\n");
1265                 }
1266         }
1267
1268         dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
1269                  QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
1270
1271         if (adapter->ahw->port_type == QLCNIC_XGBE) {
1272                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1273                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
1274                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
1275                 } else {
1276                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
1277                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
1278                 }
1279
1280                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1281                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1282
1283         } else if (adapter->ahw->port_type == QLCNIC_GBE) {
1284                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
1285                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1286                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1287                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
1288         }
1289
1290         adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
1291
1292         adapter->num_txd = MAX_CMD_DESCRIPTORS;
1293
1294         adapter->max_rds_rings = MAX_RDS_RINGS;
1295 }
1296
1297 static int
1298 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
1299 {
1300         struct qlcnic_info nic_info;
1301         int err = 0;
1302
1303         memset(&nic_info, 0, sizeof(struct qlcnic_info));
1304         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
1305         if (err)
1306                 return err;
1307
1308         adapter->ahw->physical_port = (u8)nic_info.phys_port;
1309         adapter->ahw->switch_mode = nic_info.switch_mode;
1310         adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
1311         adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
1312         adapter->ahw->capabilities = nic_info.capabilities;
1313
1314         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1315                 u32 temp;
1316                 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
1317                 if (err == -EIO)
1318                         return err;
1319                 adapter->ahw->extra_capability[0] = temp;
1320         } else {
1321                 adapter->ahw->extra_capability[0] = 0;
1322         }
1323
1324         adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1325         adapter->ahw->max_mtu = nic_info.max_mtu;
1326
1327         if (adapter->ahw->capabilities & BIT_6) {
1328                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1329                 adapter->ahw->nic_mode = QLCNIC_VNIC_MODE;
1330                 adapter->max_tx_rings = QLCNIC_MAX_HW_VNIC_TX_RINGS;
1331                 adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
1332
1333                 dev_info(&adapter->pdev->dev, "vNIC mode enabled.\n");
1334         } else {
1335                 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1336                 adapter->max_tx_rings = QLCNIC_MAX_HW_TX_RINGS;
1337                 adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
1338                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1339         }
1340
1341         return err;
1342 }
1343
1344 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1345                             struct qlcnic_esw_func_cfg *esw_cfg)
1346 {
1347         if (esw_cfg->discard_tagged)
1348                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1349         else
1350                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1351
1352         if (esw_cfg->vlan_id) {
1353                 adapter->rx_pvid = esw_cfg->vlan_id;
1354                 adapter->tx_pvid = esw_cfg->vlan_id;
1355         } else {
1356                 adapter->rx_pvid = 0;
1357                 adapter->tx_pvid = 0;
1358         }
1359 }
1360
1361 static int
1362 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1363 {
1364         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1365         int err;
1366
1367         if (qlcnic_sriov_vf_check(adapter)) {
1368                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1369                 if (err) {
1370                         netdev_err(netdev,
1371                                    "Cannot add VLAN filter for VLAN id %d, err=%d",
1372                                    vid, err);
1373                         return err;
1374                 }
1375         }
1376
1377         set_bit(vid, adapter->vlans);
1378         return 0;
1379 }
1380
1381 static int
1382 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1383 {
1384         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1385         int err;
1386
1387         if (qlcnic_sriov_vf_check(adapter)) {
1388                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1389                 if (err) {
1390                         netdev_err(netdev,
1391                                    "Cannot delete VLAN filter for VLAN id %d, err=%d",
1392                                    vid, err);
1393                         return err;
1394                 }
1395         }
1396
1397         qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1398         clear_bit(vid, adapter->vlans);
1399         return 0;
1400 }
1401
1402 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1403                                       struct qlcnic_esw_func_cfg *esw_cfg)
1404 {
1405         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1406                                 QLCNIC_PROMISC_DISABLED);
1407
1408         if (esw_cfg->mac_anti_spoof)
1409                 adapter->flags |= QLCNIC_MACSPOOF;
1410
1411         if (!esw_cfg->mac_override)
1412                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1413
1414         if (!esw_cfg->promisc_mode)
1415                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1416 }
1417
1418 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1419 {
1420         struct qlcnic_esw_func_cfg esw_cfg;
1421
1422         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1423                 return 0;
1424
1425         esw_cfg.pci_func = adapter->ahw->pci_func;
1426         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1427                         return -EIO;
1428         qlcnic_set_vlan_config(adapter, &esw_cfg);
1429         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1430         qlcnic_set_netdev_features(adapter, &esw_cfg);
1431
1432         return 0;
1433 }
1434
1435 void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1436                                 struct qlcnic_esw_func_cfg *esw_cfg)
1437 {
1438         struct net_device *netdev = adapter->netdev;
1439
1440         if (qlcnic_83xx_check(adapter))
1441                 return;
1442
1443         adapter->offload_flags = esw_cfg->offload_flags;
1444         adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1445         netdev_update_features(netdev);
1446         adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1447 }
1448
1449 static int
1450 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1451 {
1452         u32 op_mode, priv_level;
1453         int err = 0;
1454
1455         err = qlcnic_initialize_nic(adapter);
1456         if (err)
1457                 return err;
1458
1459         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1460                 return 0;
1461
1462         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1463         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1464
1465         if (op_mode == QLC_DEV_DRV_DEFAULT)
1466                 priv_level = QLCNIC_MGMT_FUNC;
1467         else
1468                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1469
1470         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1471                 if (priv_level == QLCNIC_MGMT_FUNC) {
1472                         adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1473                         err = qlcnic_init_pci_info(adapter);
1474                         if (err)
1475                                 return err;
1476                         /* Set privilege level for other functions */
1477                         qlcnic_set_function_modes(adapter);
1478                         dev_info(&adapter->pdev->dev,
1479                                 "HAL Version: %d, Management function\n",
1480                                  adapter->ahw->fw_hal_version);
1481                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1482                         adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1483                         dev_info(&adapter->pdev->dev,
1484                                 "HAL Version: %d, Privileged function\n",
1485                                  adapter->ahw->fw_hal_version);
1486                 }
1487         } else {
1488                 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1489         }
1490
1491         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1492
1493         return err;
1494 }
1495
1496 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1497 {
1498         struct qlcnic_esw_func_cfg esw_cfg;
1499         struct qlcnic_npar_info *npar;
1500         u8 i;
1501
1502         if (adapter->need_fw_reset)
1503                 return 0;
1504
1505         for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1506                 if (!adapter->npars[i].eswitch_status)
1507                         continue;
1508
1509                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1510                 esw_cfg.pci_func = adapter->npars[i].pci_func;
1511                 esw_cfg.mac_override = BIT_0;
1512                 esw_cfg.promisc_mode = BIT_0;
1513                 if (qlcnic_82xx_check(adapter)) {
1514                         esw_cfg.offload_flags = BIT_0;
1515                         if (QLCNIC_IS_TSO_CAPABLE(adapter))
1516                                 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1517                 }
1518                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1519                         return -EIO;
1520                 npar = &adapter->npars[i];
1521                 npar->pvid = esw_cfg.vlan_id;
1522                 npar->mac_override = esw_cfg.mac_override;
1523                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1524                 npar->discard_tagged = esw_cfg.discard_tagged;
1525                 npar->promisc_mode = esw_cfg.promisc_mode;
1526                 npar->offload_flags = esw_cfg.offload_flags;
1527         }
1528
1529         return 0;
1530 }
1531
1532
1533 static int
1534 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1535                         struct qlcnic_npar_info *npar, int pci_func)
1536 {
1537         struct qlcnic_esw_func_cfg esw_cfg;
1538         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1539         esw_cfg.pci_func = pci_func;
1540         esw_cfg.vlan_id = npar->pvid;
1541         esw_cfg.mac_override = npar->mac_override;
1542         esw_cfg.discard_tagged = npar->discard_tagged;
1543         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1544         esw_cfg.offload_flags = npar->offload_flags;
1545         esw_cfg.promisc_mode = npar->promisc_mode;
1546         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1547                 return -EIO;
1548
1549         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1550         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1551                 return -EIO;
1552
1553         return 0;
1554 }
1555
1556 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1557 {
1558         int i, err;
1559         struct qlcnic_npar_info *npar;
1560         struct qlcnic_info nic_info;
1561         u8 pci_func;
1562
1563         if (qlcnic_82xx_check(adapter))
1564                 if (!adapter->need_fw_reset)
1565                         return 0;
1566
1567         /* Set the NPAR config data after FW reset */
1568         for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1569                 npar = &adapter->npars[i];
1570                 pci_func = npar->pci_func;
1571                 if (!adapter->npars[i].eswitch_status)
1572                         continue;
1573
1574                 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1575                 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1576                 if (err)
1577                         return err;
1578                 nic_info.min_tx_bw = npar->min_bw;
1579                 nic_info.max_tx_bw = npar->max_bw;
1580                 err = qlcnic_set_nic_info(adapter, &nic_info);
1581                 if (err)
1582                         return err;
1583
1584                 if (npar->enable_pm) {
1585                         err = qlcnic_config_port_mirroring(adapter,
1586                                                            npar->dest_npar, 1,
1587                                                            pci_func);
1588                         if (err)
1589                                 return err;
1590                 }
1591                 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1592                 if (err)
1593                         return err;
1594         }
1595         return 0;
1596 }
1597
1598 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1599 {
1600         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1601         u32 npar_state;
1602
1603         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1604                 return 0;
1605
1606         npar_state = QLC_SHARED_REG_RD32(adapter,
1607                                          QLCNIC_CRB_DEV_NPAR_STATE);
1608         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1609                 msleep(1000);
1610                 npar_state = QLC_SHARED_REG_RD32(adapter,
1611                                                  QLCNIC_CRB_DEV_NPAR_STATE);
1612         }
1613         if (!npar_opt_timeo) {
1614                 dev_err(&adapter->pdev->dev,
1615                         "Waiting for NPAR state to operational timeout\n");
1616                 return -EIO;
1617         }
1618         return 0;
1619 }
1620
1621 static int
1622 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1623 {
1624         int err;
1625
1626         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1627             adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1628                 return 0;
1629
1630         err = qlcnic_set_default_offload_settings(adapter);
1631         if (err)
1632                 return err;
1633
1634         err = qlcnic_reset_npar_config(adapter);
1635         if (err)
1636                 return err;
1637
1638         qlcnic_dev_set_npar_ready(adapter);
1639
1640         return err;
1641 }
1642
1643 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1644 {
1645         int err;
1646
1647         err = qlcnic_can_start_firmware(adapter);
1648         if (err < 0)
1649                 return err;
1650         else if (!err)
1651                 goto check_fw_status;
1652
1653         if (qlcnic_load_fw_file)
1654                 qlcnic_request_firmware(adapter);
1655         else {
1656                 err = qlcnic_check_flash_fw_ver(adapter);
1657                 if (err)
1658                         goto err_out;
1659
1660                 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1661         }
1662
1663         err = qlcnic_need_fw_reset(adapter);
1664         if (err == 0)
1665                 goto check_fw_status;
1666
1667         err = qlcnic_pinit_from_rom(adapter);
1668         if (err)
1669                 goto err_out;
1670
1671         err = qlcnic_load_firmware(adapter);
1672         if (err)
1673                 goto err_out;
1674
1675         qlcnic_release_firmware(adapter);
1676         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1677
1678 check_fw_status:
1679         err = qlcnic_check_fw_status(adapter);
1680         if (err)
1681                 goto err_out;
1682
1683         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1684         qlcnic_idc_debug_info(adapter, 1);
1685         err = qlcnic_check_eswitch_mode(adapter);
1686         if (err) {
1687                 dev_err(&adapter->pdev->dev,
1688                         "Memory allocation failed for eswitch\n");
1689                 goto err_out;
1690         }
1691         err = qlcnic_set_mgmt_operations(adapter);
1692         if (err)
1693                 goto err_out;
1694
1695         qlcnic_check_options(adapter);
1696         adapter->need_fw_reset = 0;
1697
1698         qlcnic_release_firmware(adapter);
1699         return 0;
1700
1701 err_out:
1702         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1703         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1704
1705         qlcnic_release_firmware(adapter);
1706         return err;
1707 }
1708
1709 static int
1710 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1711 {
1712         irq_handler_t handler;
1713         struct qlcnic_host_sds_ring *sds_ring;
1714         struct qlcnic_host_tx_ring *tx_ring;
1715         int err, ring, num_sds_rings;
1716
1717         unsigned long flags = 0;
1718         struct net_device *netdev = adapter->netdev;
1719         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1720
1721         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1722                 if (qlcnic_82xx_check(adapter))
1723                         handler = qlcnic_tmp_intr;
1724                 else
1725                         handler = qlcnic_83xx_tmp_intr;
1726                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1727                         flags |= IRQF_SHARED;
1728
1729         } else {
1730                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1731                         handler = qlcnic_msix_intr;
1732                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1733                         handler = qlcnic_msi_intr;
1734                 else {
1735                         flags |= IRQF_SHARED;
1736                         if (qlcnic_82xx_check(adapter))
1737                                 handler = qlcnic_intr;
1738                         else
1739                                 handler = qlcnic_83xx_intr;
1740                 }
1741         }
1742         adapter->irq = netdev->irq;
1743
1744         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1745                 if (qlcnic_82xx_check(adapter) ||
1746                     (qlcnic_83xx_check(adapter) &&
1747                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1748                         num_sds_rings = adapter->drv_sds_rings;
1749                         for (ring = 0; ring < num_sds_rings; ring++) {
1750                                 sds_ring = &recv_ctx->sds_rings[ring];
1751                                 if (qlcnic_82xx_check(adapter) &&
1752                                     !qlcnic_check_multi_tx(adapter) &&
1753                                     (ring == (num_sds_rings - 1))) {
1754                                         if (!(adapter->flags &
1755                                               QLCNIC_MSIX_ENABLED))
1756                                                 snprintf(sds_ring->name,
1757                                                          sizeof(sds_ring->name),
1758                                                          "qlcnic");
1759                                         else
1760                                                 snprintf(sds_ring->name,
1761                                                          sizeof(sds_ring->name),
1762                                                          "%s-tx-0-rx-%d",
1763                                                          netdev->name, ring);
1764                                 } else {
1765                                         snprintf(sds_ring->name,
1766                                                  sizeof(sds_ring->name),
1767                                                  "%s-rx-%d",
1768                                                  netdev->name, ring);
1769                                 }
1770                                 err = request_irq(sds_ring->irq, handler, flags,
1771                                                   sds_ring->name, sds_ring);
1772                                 if (err)
1773                                         return err;
1774                         }
1775                 }
1776                 if ((qlcnic_82xx_check(adapter) &&
1777                      qlcnic_check_multi_tx(adapter)) ||
1778                     (qlcnic_83xx_check(adapter) &&
1779                      (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1780                      !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
1781                         handler = qlcnic_msix_tx_intr;
1782                         for (ring = 0; ring < adapter->drv_tx_rings;
1783                              ring++) {
1784                                 tx_ring = &adapter->tx_ring[ring];
1785                                 snprintf(tx_ring->name, sizeof(tx_ring->name),
1786                                          "%s-tx-%d", netdev->name, ring);
1787                                 err = request_irq(tx_ring->irq, handler, flags,
1788                                                   tx_ring->name, tx_ring);
1789                                 if (err)
1790                                         return err;
1791                         }
1792                 }
1793         }
1794         return 0;
1795 }
1796
1797 static void
1798 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1799 {
1800         int ring;
1801         struct qlcnic_host_sds_ring *sds_ring;
1802         struct qlcnic_host_tx_ring *tx_ring;
1803
1804         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1805
1806         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1807                 if (qlcnic_82xx_check(adapter) ||
1808                     (qlcnic_83xx_check(adapter) &&
1809                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1810                         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1811                                 sds_ring = &recv_ctx->sds_rings[ring];
1812                                 free_irq(sds_ring->irq, sds_ring);
1813                         }
1814                 }
1815                 if ((qlcnic_83xx_check(adapter) &&
1816                      !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
1817                     (qlcnic_82xx_check(adapter) &&
1818                      qlcnic_check_multi_tx(adapter))) {
1819                         for (ring = 0; ring < adapter->drv_tx_rings;
1820                              ring++) {
1821                                 tx_ring = &adapter->tx_ring[ring];
1822                                 if (tx_ring->irq)
1823                                         free_irq(tx_ring->irq, tx_ring);
1824                         }
1825                 }
1826         }
1827 }
1828
1829 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1830 {
1831         u32 capab = 0;
1832
1833         if (qlcnic_82xx_check(adapter)) {
1834                 if (adapter->ahw->extra_capability[0] &
1835                     QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1836                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1837         } else {
1838                 capab = adapter->ahw->capabilities;
1839                 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1840                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1841         }
1842 }
1843
1844 static int qlcnic_config_def_intr_coalesce(struct qlcnic_adapter *adapter)
1845 {
1846         struct qlcnic_hardware_context *ahw = adapter->ahw;
1847         int err;
1848
1849         /* Initialize interrupt coalesce parameters */
1850         ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1851
1852         if (qlcnic_83xx_check(adapter)) {
1853                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
1854                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1855                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1856                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1857                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1858
1859                 err = qlcnic_83xx_set_rx_tx_intr_coal(adapter);
1860         } else {
1861                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1862                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1863                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1864
1865                 err = qlcnic_82xx_set_rx_coalesce(adapter);
1866         }
1867
1868         return err;
1869 }
1870
1871 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1872 {
1873         int ring;
1874         struct qlcnic_host_rds_ring *rds_ring;
1875
1876         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1877                 return -EIO;
1878
1879         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1880                 return 0;
1881
1882         if (qlcnic_set_eswitch_port_config(adapter))
1883                 return -EIO;
1884
1885         qlcnic_get_lro_mss_capability(adapter);
1886
1887         if (qlcnic_fw_create_ctx(adapter))
1888                 return -EIO;
1889
1890         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1891                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1892                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1893         }
1894
1895         qlcnic_set_multi(netdev);
1896         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1897
1898         adapter->ahw->linkup = 0;
1899
1900         if (adapter->drv_sds_rings > 1)
1901                 qlcnic_config_rss(adapter, 1);
1902
1903         qlcnic_config_def_intr_coalesce(adapter);
1904
1905         if (netdev->features & NETIF_F_LRO)
1906                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1907
1908         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1909         qlcnic_napi_enable(adapter);
1910
1911         qlcnic_linkevent_request(adapter, 1);
1912
1913         adapter->ahw->reset_context = 0;
1914         netif_tx_start_all_queues(netdev);
1915         return 0;
1916 }
1917
1918 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1919 {
1920         int err = 0;
1921
1922         rtnl_lock();
1923         if (netif_running(netdev))
1924                 err = __qlcnic_up(adapter, netdev);
1925         rtnl_unlock();
1926
1927         return err;
1928 }
1929
1930 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1931 {
1932         int ring;
1933
1934         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1935                 return;
1936
1937         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1938                 return;
1939
1940         smp_mb();
1941         netif_carrier_off(netdev);
1942         adapter->ahw->linkup = 0;
1943         netif_tx_disable(netdev);
1944
1945         qlcnic_free_mac_list(adapter);
1946
1947         if (adapter->fhash.fnum)
1948                 qlcnic_delete_lb_filters(adapter);
1949
1950         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1951         if (qlcnic_sriov_vf_check(adapter))
1952                 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1953
1954         qlcnic_napi_disable(adapter);
1955
1956         qlcnic_fw_destroy_ctx(adapter);
1957         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1958
1959         qlcnic_reset_rx_buffers_list(adapter);
1960
1961         for (ring = 0; ring < adapter->drv_tx_rings; ring++)
1962                 qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
1963 }
1964
1965 /* Usage: During suspend and firmware recovery module */
1966
1967 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1968 {
1969         rtnl_lock();
1970         if (netif_running(netdev))
1971                 __qlcnic_down(adapter, netdev);
1972         rtnl_unlock();
1973
1974 }
1975
1976 int
1977 qlcnic_attach(struct qlcnic_adapter *adapter)
1978 {
1979         struct net_device *netdev = adapter->netdev;
1980         struct pci_dev *pdev = adapter->pdev;
1981         int err;
1982
1983         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1984                 return 0;
1985
1986         err = qlcnic_napi_add(adapter, netdev);
1987         if (err)
1988                 return err;
1989
1990         err = qlcnic_alloc_sw_resources(adapter);
1991         if (err) {
1992                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1993                 goto err_out_napi_del;
1994         }
1995
1996         err = qlcnic_alloc_hw_resources(adapter);
1997         if (err) {
1998                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1999                 goto err_out_free_sw;
2000         }
2001
2002         err = qlcnic_request_irq(adapter);
2003         if (err) {
2004                 dev_err(&pdev->dev, "failed to setup interrupt\n");
2005                 goto err_out_free_hw;
2006         }
2007
2008         qlcnic_create_sysfs_entries(adapter);
2009
2010 #ifdef CONFIG_QLCNIC_VXLAN
2011         if (qlcnic_encap_rx_offload(adapter))
2012                 vxlan_get_rx_port(netdev);
2013 #endif
2014
2015         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
2016         return 0;
2017
2018 err_out_free_hw:
2019         qlcnic_free_hw_resources(adapter);
2020 err_out_free_sw:
2021         qlcnic_free_sw_resources(adapter);
2022 err_out_napi_del:
2023         qlcnic_napi_del(adapter);
2024         return err;
2025 }
2026
2027 void qlcnic_detach(struct qlcnic_adapter *adapter)
2028 {
2029         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2030                 return;
2031
2032         qlcnic_remove_sysfs_entries(adapter);
2033
2034         qlcnic_free_hw_resources(adapter);
2035         qlcnic_release_rx_buffers(adapter);
2036         qlcnic_free_irq(adapter);
2037         qlcnic_napi_del(adapter);
2038         qlcnic_free_sw_resources(adapter);
2039
2040         adapter->is_up = 0;
2041 }
2042
2043 void qlcnic_diag_free_res(struct net_device *netdev, int drv_sds_rings)
2044 {
2045         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2046         struct qlcnic_host_sds_ring *sds_ring;
2047         int drv_tx_rings = adapter->drv_tx_rings;
2048         int ring;
2049
2050         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
2051         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2052                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2053                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
2054                         qlcnic_disable_sds_intr(adapter, sds_ring);
2055                 }
2056         }
2057
2058         qlcnic_fw_destroy_ctx(adapter);
2059
2060         qlcnic_detach(adapter);
2061
2062         adapter->ahw->diag_test = 0;
2063         adapter->drv_sds_rings = drv_sds_rings;
2064         adapter->drv_tx_rings = drv_tx_rings;
2065
2066         if (qlcnic_attach(adapter))
2067                 goto out;
2068
2069         if (netif_running(netdev))
2070                 __qlcnic_up(adapter, netdev);
2071 out:
2072         netif_device_attach(netdev);
2073 }
2074
2075 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
2076 {
2077         struct qlcnic_hardware_context *ahw = adapter->ahw;
2078         int err = 0;
2079
2080         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
2081                                 GFP_KERNEL);
2082         if (!adapter->recv_ctx) {
2083                 err = -ENOMEM;
2084                 goto err_out;
2085         }
2086
2087         if (qlcnic_83xx_check(adapter)) {
2088                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
2089                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
2090                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
2091                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2092                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2093         } else {
2094                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
2095                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2096                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2097         }
2098
2099         /* clear stats */
2100         memset(&adapter->stats, 0, sizeof(adapter->stats));
2101 err_out:
2102         return err;
2103 }
2104
2105 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
2106 {
2107         struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
2108
2109         kfree(adapter->recv_ctx);
2110         adapter->recv_ctx = NULL;
2111
2112         if (fw_dump->tmpl_hdr) {
2113                 vfree(fw_dump->tmpl_hdr);
2114                 fw_dump->tmpl_hdr = NULL;
2115         }
2116
2117         if (fw_dump->dma_buffer) {
2118                 dma_free_coherent(&adapter->pdev->dev, QLC_PEX_DMA_READ_SIZE,
2119                                   fw_dump->dma_buffer, fw_dump->phys_addr);
2120                 fw_dump->dma_buffer = NULL;
2121         }
2122
2123         kfree(adapter->ahw->reset.buff);
2124         adapter->ahw->fw_dump.tmpl_hdr = NULL;
2125 }
2126
2127 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
2128 {
2129         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2130         struct qlcnic_host_sds_ring *sds_ring;
2131         struct qlcnic_host_rds_ring *rds_ring;
2132         int ring;
2133         int ret;
2134
2135         netif_device_detach(netdev);
2136
2137         if (netif_running(netdev))
2138                 __qlcnic_down(adapter, netdev);
2139
2140         qlcnic_detach(adapter);
2141
2142         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
2143         adapter->ahw->diag_test = test;
2144         adapter->ahw->linkup = 0;
2145
2146         ret = qlcnic_attach(adapter);
2147         if (ret) {
2148                 netif_device_attach(netdev);
2149                 return ret;
2150         }
2151
2152         ret = qlcnic_fw_create_ctx(adapter);
2153         if (ret) {
2154                 qlcnic_detach(adapter);
2155                 netif_device_attach(netdev);
2156                 return ret;
2157         }
2158
2159         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
2160                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
2161                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
2162         }
2163
2164         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2165                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2166                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
2167                         qlcnic_enable_sds_intr(adapter, sds_ring);
2168                 }
2169         }
2170
2171         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
2172                 adapter->ahw->loopback_state = 0;
2173                 qlcnic_linkevent_request(adapter, 1);
2174         }
2175
2176         set_bit(__QLCNIC_DEV_UP, &adapter->state);
2177
2178         return 0;
2179 }
2180
2181 /* Reset context in hardware only */
2182 static int
2183 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
2184 {
2185         struct net_device *netdev = adapter->netdev;
2186
2187         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2188                 return -EBUSY;
2189
2190         netif_device_detach(netdev);
2191
2192         qlcnic_down(adapter, netdev);
2193
2194         qlcnic_up(adapter, netdev);
2195
2196         netif_device_attach(netdev);
2197
2198         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2199         netdev_info(adapter->netdev, "%s: soft reset complete\n", __func__);
2200         return 0;
2201 }
2202
2203 int
2204 qlcnic_reset_context(struct qlcnic_adapter *adapter)
2205 {
2206         int err = 0;
2207         struct net_device *netdev = adapter->netdev;
2208
2209         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2210                 return -EBUSY;
2211
2212         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
2213
2214                 netif_device_detach(netdev);
2215
2216                 if (netif_running(netdev))
2217                         __qlcnic_down(adapter, netdev);
2218
2219                 qlcnic_detach(adapter);
2220
2221                 if (netif_running(netdev)) {
2222                         err = qlcnic_attach(adapter);
2223                         if (!err) {
2224                                 __qlcnic_up(adapter, netdev);
2225                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2226                         }
2227                 }
2228
2229                 netif_device_attach(netdev);
2230         }
2231
2232         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2233         return err;
2234 }
2235
2236 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
2237 {
2238         struct qlcnic_hardware_context *ahw = adapter->ahw;
2239         u16 act_pci_fn = ahw->total_nic_func;
2240         u16 count;
2241
2242         ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
2243         if (act_pci_fn <= 2)
2244                 count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
2245                          act_pci_fn;
2246         else
2247                 count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
2248                          act_pci_fn;
2249         ahw->max_uc_count = count;
2250 }
2251
2252 static int qlcnic_set_real_num_queues(struct qlcnic_adapter *adapter,
2253                                       u8 tx_queues, u8 rx_queues)
2254 {
2255         struct net_device *netdev = adapter->netdev;
2256         int err = 0;
2257
2258         if (tx_queues) {
2259                 err = netif_set_real_num_tx_queues(netdev, tx_queues);
2260                 if (err) {
2261                         netdev_err(netdev, "failed to set %d Tx queues\n",
2262                                    tx_queues);
2263                         return err;
2264                 }
2265         }
2266
2267         if (rx_queues) {
2268                 err = netif_set_real_num_rx_queues(netdev, rx_queues);
2269                 if (err)
2270                         netdev_err(netdev, "failed to set %d Rx queues\n",
2271                                    rx_queues);
2272         }
2273
2274         return err;
2275 }
2276
2277 int
2278 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
2279                     int pci_using_dac)
2280 {
2281         int err;
2282         struct pci_dev *pdev = adapter->pdev;
2283
2284         adapter->rx_csum = 1;
2285         adapter->ahw->mc_enabled = 0;
2286         qlcnic_set_mac_filter_count(adapter);
2287
2288         netdev->netdev_ops         = &qlcnic_netdev_ops;
2289         netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
2290
2291         qlcnic_change_mtu(netdev, netdev->mtu);
2292
2293         netdev->ethtool_ops = (qlcnic_sriov_vf_check(adapter)) ?
2294                 &qlcnic_sriov_vf_ethtool_ops : &qlcnic_ethtool_ops;
2295
2296         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2297                              NETIF_F_IPV6_CSUM | NETIF_F_GRO |
2298                              NETIF_F_HW_VLAN_CTAG_RX);
2299         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
2300                                   NETIF_F_IPV6_CSUM);
2301
2302         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
2303                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
2304                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
2305         }
2306
2307         if (pci_using_dac) {
2308                 netdev->features |= NETIF_F_HIGHDMA;
2309                 netdev->vlan_features |= NETIF_F_HIGHDMA;
2310         }
2311
2312         if (qlcnic_vlan_tx_check(adapter))
2313                 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
2314
2315         if (qlcnic_sriov_vf_check(adapter))
2316                 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2317
2318         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
2319                 netdev->features |= NETIF_F_LRO;
2320
2321         if (qlcnic_encap_tx_offload(adapter)) {
2322                 netdev->features |= NETIF_F_GSO_UDP_TUNNEL;
2323
2324                 /* encapsulation Tx offload supported by Adapter */
2325                 netdev->hw_enc_features = NETIF_F_IP_CSUM        |
2326                                           NETIF_F_GSO_UDP_TUNNEL |
2327                                           NETIF_F_TSO            |
2328                                           NETIF_F_TSO6;
2329         }
2330
2331         if (qlcnic_encap_rx_offload(adapter))
2332                 netdev->hw_enc_features |= NETIF_F_RXCSUM;
2333
2334         netdev->hw_features = netdev->features;
2335         netdev->priv_flags |= IFF_UNICAST_FLT;
2336         netdev->irq = adapter->msix_entries[0].vector;
2337
2338         err = qlcnic_set_real_num_queues(adapter, adapter->drv_tx_rings,
2339                                          adapter->drv_sds_rings);
2340         if (err)
2341                 return err;
2342
2343         qlcnic_dcb_init_dcbnl_ops(adapter->dcb);
2344
2345         err = register_netdev(netdev);
2346         if (err) {
2347                 dev_err(&pdev->dev, "failed to register net device\n");
2348                 return err;
2349         }
2350
2351         return 0;
2352 }
2353
2354 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
2355 {
2356         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
2357                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
2358                 *pci_using_dac = 1;
2359         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
2360                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
2361                 *pci_using_dac = 0;
2362         else {
2363                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
2364                 return -EIO;
2365         }
2366
2367         return 0;
2368 }
2369
2370 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
2371 {
2372         int ring;
2373         struct qlcnic_host_tx_ring *tx_ring;
2374
2375         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2376                 tx_ring = &adapter->tx_ring[ring];
2377                 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
2378                         vfree(tx_ring->cmd_buf_arr);
2379                         tx_ring->cmd_buf_arr = NULL;
2380                 }
2381         }
2382         if (adapter->tx_ring != NULL)
2383                 kfree(adapter->tx_ring);
2384 }
2385
2386 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
2387                           struct net_device *netdev)
2388 {
2389         int ring, vector, index;
2390         struct qlcnic_host_tx_ring *tx_ring;
2391         struct qlcnic_cmd_buffer *cmd_buf_arr;
2392
2393         tx_ring = kcalloc(adapter->drv_tx_rings,
2394                           sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
2395         if (tx_ring == NULL)
2396                 return -ENOMEM;
2397
2398         adapter->tx_ring = tx_ring;
2399
2400         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2401                 tx_ring = &adapter->tx_ring[ring];
2402                 tx_ring->num_desc = adapter->num_txd;
2403                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
2404                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
2405                 if (cmd_buf_arr == NULL) {
2406                         qlcnic_free_tx_rings(adapter);
2407                         return -ENOMEM;
2408                 }
2409                 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
2410                 tx_ring->cmd_buf_arr = cmd_buf_arr;
2411                 spin_lock_init(&tx_ring->tx_clean_lock);
2412         }
2413
2414         if (qlcnic_83xx_check(adapter) ||
2415             (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
2416                 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2417                         tx_ring = &adapter->tx_ring[ring];
2418                         tx_ring->adapter = adapter;
2419                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
2420                                 index = adapter->drv_sds_rings + ring;
2421                                 vector = adapter->msix_entries[index].vector;
2422                                 tx_ring->irq = vector;
2423                         }
2424                 }
2425         }
2426
2427         return 0;
2428 }
2429
2430 void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
2431 {
2432         struct qlcnic_hardware_context *ahw = adapter->ahw;
2433         u32 fw_cmd = 0;
2434
2435         if (qlcnic_82xx_check(adapter))
2436                 fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
2437         else if (qlcnic_83xx_check(adapter))
2438                 fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
2439
2440         if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER)
2441                 qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
2442 }
2443
2444 /* Reset firmware API lock */
2445 static void qlcnic_reset_api_lock(struct qlcnic_adapter *adapter)
2446 {
2447         qlcnic_api_lock(adapter);
2448         qlcnic_api_unlock(adapter);
2449 }
2450
2451
2452 static int
2453 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2454 {
2455         struct net_device *netdev = NULL;
2456         struct qlcnic_adapter *adapter = NULL;
2457         struct qlcnic_hardware_context *ahw;
2458         int err, pci_using_dac = -1;
2459         char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
2460
2461         err = pci_enable_device(pdev);
2462         if (err)
2463                 return err;
2464
2465         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2466                 err = -ENODEV;
2467                 goto err_out_disable_pdev;
2468         }
2469
2470         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
2471         if (err)
2472                 goto err_out_disable_pdev;
2473
2474         err = pci_request_regions(pdev, qlcnic_driver_name);
2475         if (err)
2476                 goto err_out_disable_pdev;
2477
2478         pci_set_master(pdev);
2479         pci_enable_pcie_error_reporting(pdev);
2480
2481         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2482         if (!ahw) {
2483                 err = -ENOMEM;
2484                 goto err_out_free_res;
2485         }
2486
2487         switch (ent->device) {
2488         case PCI_DEVICE_ID_QLOGIC_QLE824X:
2489                 ahw->hw_ops = &qlcnic_hw_ops;
2490                 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2491                 break;
2492         case PCI_DEVICE_ID_QLOGIC_QLE834X:
2493         case PCI_DEVICE_ID_QLOGIC_QLE8830:
2494         case PCI_DEVICE_ID_QLOGIC_QLE844X:
2495                 qlcnic_83xx_register_map(ahw);
2496                 break;
2497         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2498         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2499                 qlcnic_sriov_vf_register_map(ahw);
2500                 break;
2501         default:
2502                 goto err_out_free_hw_res;
2503         }
2504
2505         err = qlcnic_setup_pci_map(pdev, ahw);
2506         if (err)
2507                 goto err_out_free_hw_res;
2508
2509         netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
2510                                    QLCNIC_MAX_TX_RINGS);
2511         if (!netdev) {
2512                 err = -ENOMEM;
2513                 goto err_out_iounmap;
2514         }
2515
2516         SET_NETDEV_DEV(netdev, &pdev->dev);
2517
2518         adapter = netdev_priv(netdev);
2519         adapter->netdev  = netdev;
2520         adapter->pdev    = pdev;
2521         adapter->ahw = ahw;
2522
2523         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2524         if (adapter->qlcnic_wq == NULL) {
2525                 err = -ENOMEM;
2526                 dev_err(&pdev->dev, "Failed to create workqueue\n");
2527                 goto err_out_free_netdev;
2528         }
2529
2530         err = qlcnic_alloc_adapter_resources(adapter);
2531         if (err)
2532                 goto err_out_free_wq;
2533
2534         adapter->dev_rst_time = jiffies;
2535         ahw->revision_id = pdev->revision;
2536         ahw->max_vnic_func = qlcnic_get_vnic_func_count(adapter);
2537         if (qlcnic_mac_learn == FDB_MAC_LEARN)
2538                 adapter->fdb_mac_learn = true;
2539         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2540                 adapter->drv_mac_learn = true;
2541
2542         rwlock_init(&adapter->ahw->crb_lock);
2543         mutex_init(&adapter->ahw->mem_lock);
2544
2545         INIT_LIST_HEAD(&adapter->mac_list);
2546
2547         qlcnic_register_dcb(adapter);
2548
2549         if (qlcnic_82xx_check(adapter)) {
2550                 qlcnic_check_vf(adapter, ent);
2551                 adapter->portnum = adapter->ahw->pci_func;
2552                 qlcnic_reset_api_lock(adapter);
2553                 err = qlcnic_start_firmware(adapter);
2554                 if (err) {
2555                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
2556                                 "\t\tIf reboot doesn't help, try flashing the card\n");
2557                         goto err_out_maintenance_mode;
2558                 }
2559
2560                 /* compute and set default and max tx/sds rings */
2561                 if (adapter->ahw->msix_supported) {
2562                         if (qlcnic_check_multi_tx_capability(adapter) == 1)
2563                                 qlcnic_set_tx_ring_count(adapter,
2564                                                          QLCNIC_SINGLE_RING);
2565                         else
2566                                 qlcnic_set_tx_ring_count(adapter,
2567                                                          QLCNIC_DEF_TX_RINGS);
2568                         qlcnic_set_sds_ring_count(adapter,
2569                                                   QLCNIC_DEF_SDS_RINGS);
2570                 } else {
2571                         qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
2572                         qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
2573                 }
2574
2575                 err = qlcnic_setup_idc_param(adapter);
2576                 if (err)
2577                         goto err_out_free_hw;
2578
2579                 adapter->flags |= QLCNIC_NEED_FLR;
2580
2581         } else if (qlcnic_83xx_check(adapter)) {
2582                 qlcnic_83xx_check_vf(adapter, ent);
2583                 adapter->portnum = adapter->ahw->pci_func;
2584                 err = qlcnic_83xx_init(adapter, pci_using_dac);
2585                 if (err) {
2586                         switch (err) {
2587                         case -ENOTRECOVERABLE:
2588                                 dev_err(&pdev->dev, "Adapter initialization failed due to a faulty hardware\n");
2589                                 dev_err(&pdev->dev, "Please replace the adapter with new one and return the faulty adapter for repair\n");
2590                                 goto err_out_free_hw;
2591                         case -ENOMEM:
2592                                 dev_err(&pdev->dev, "Adapter initialization failed. Please reboot\n");
2593                                 goto err_out_free_hw;
2594                         case -EOPNOTSUPP:
2595                                 dev_err(&pdev->dev, "Adapter initialization failed\n");
2596                                 goto err_out_free_hw;
2597                         default:
2598                                 dev_err(&pdev->dev, "Adapter initialization failed. Driver will load in maintenance mode to recover the adapter using the application\n");
2599                                 goto err_out_maintenance_mode;
2600                         }
2601                 }
2602
2603                 if (qlcnic_sriov_vf_check(adapter))
2604                         return 0;
2605         } else {
2606                 dev_err(&pdev->dev,
2607                         "%s: failed. Please Reboot\n", __func__);
2608                 err = -ENODEV;
2609                 goto err_out_free_hw;
2610         }
2611
2612         if (qlcnic_read_mac_addr(adapter))
2613                 dev_warn(&pdev->dev, "failed to read mac addr\n");
2614
2615         qlcnic_read_phys_port_id(adapter);
2616
2617         if (adapter->portnum == 0) {
2618                 qlcnic_get_board_name(adapter, board_name);
2619
2620                 pr_info("%s: %s Board Chip rev 0x%x\n",
2621                         module_name(THIS_MODULE),
2622                         board_name, adapter->ahw->revision_id);
2623         }
2624
2625         if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2626             !!qlcnic_use_msi)
2627                 dev_warn(&pdev->dev,
2628                          "Device does not support MSI interrupts\n");
2629
2630         if (qlcnic_82xx_check(adapter)) {
2631                 qlcnic_dcb_enable(adapter->dcb);
2632                 qlcnic_dcb_get_info(adapter->dcb);
2633                 err = qlcnic_setup_intr(adapter);
2634
2635                 if (err) {
2636                         dev_err(&pdev->dev, "Failed to setup interrupt\n");
2637                         goto err_out_disable_msi;
2638                 }
2639         }
2640
2641         err = qlcnic_get_act_pci_func(adapter);
2642         if (err)
2643                 goto err_out_disable_mbx_intr;
2644
2645         if (adapter->portnum == 0)
2646                 qlcnic_set_drv_version(adapter);
2647
2648         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2649         if (err)
2650                 goto err_out_disable_mbx_intr;
2651
2652         pci_set_drvdata(pdev, adapter);
2653
2654         if (qlcnic_82xx_check(adapter))
2655                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2656                                      FW_POLL_DELAY);
2657
2658         switch (adapter->ahw->port_type) {
2659         case QLCNIC_GBE:
2660                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2661                                 adapter->netdev->name);
2662                 break;
2663         case QLCNIC_XGBE:
2664                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2665                                 adapter->netdev->name);
2666                 break;
2667         }
2668
2669         if (adapter->drv_mac_learn)
2670                 qlcnic_alloc_lb_filters_mem(adapter);
2671
2672         qlcnic_add_sysfs(adapter);
2673         qlcnic_register_hwmon_dev(adapter);
2674         return 0;
2675
2676 err_out_disable_mbx_intr:
2677         if (qlcnic_83xx_check(adapter))
2678                 qlcnic_83xx_free_mbx_intr(adapter);
2679
2680 err_out_disable_msi:
2681         qlcnic_teardown_intr(adapter);
2682         qlcnic_cancel_idc_work(adapter);
2683         qlcnic_clr_all_drv_state(adapter, 0);
2684
2685 err_out_free_hw:
2686         qlcnic_free_adapter_resources(adapter);
2687
2688 err_out_free_wq:
2689         destroy_workqueue(adapter->qlcnic_wq);
2690
2691 err_out_free_netdev:
2692         free_netdev(netdev);
2693
2694 err_out_iounmap:
2695         qlcnic_cleanup_pci_map(ahw);
2696
2697 err_out_free_hw_res:
2698         kfree(ahw);
2699
2700 err_out_free_res:
2701         pci_release_regions(pdev);
2702
2703 err_out_disable_pdev:
2704         pci_disable_device(pdev);
2705         return err;
2706
2707 err_out_maintenance_mode:
2708         set_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state);
2709         netdev->netdev_ops = &qlcnic_netdev_failed_ops;
2710         netdev->ethtool_ops = &qlcnic_ethtool_failed_ops;
2711         ahw->port_type = QLCNIC_XGBE;
2712
2713         if (qlcnic_83xx_check(adapter))
2714                 adapter->tgt_status_reg = NULL;
2715         else
2716                 ahw->board_type = QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS;
2717
2718         err = register_netdev(netdev);
2719
2720         if (err) {
2721                 dev_err(&pdev->dev, "Failed to register net device\n");
2722                 qlcnic_clr_all_drv_state(adapter, 0);
2723                 goto err_out_free_hw;
2724         }
2725
2726         pci_set_drvdata(pdev, adapter);
2727         qlcnic_add_sysfs(adapter);
2728
2729         return 0;
2730 }
2731
2732 static void qlcnic_remove(struct pci_dev *pdev)
2733 {
2734         struct qlcnic_adapter *adapter;
2735         struct net_device *netdev;
2736         struct qlcnic_hardware_context *ahw;
2737
2738         adapter = pci_get_drvdata(pdev);
2739         if (adapter == NULL)
2740                 return;
2741
2742         netdev = adapter->netdev;
2743
2744         qlcnic_cancel_idc_work(adapter);
2745         qlcnic_sriov_pf_disable(adapter);
2746         ahw = adapter->ahw;
2747
2748         unregister_netdev(netdev);
2749         qlcnic_sriov_cleanup(adapter);
2750
2751         if (qlcnic_83xx_check(adapter)) {
2752                 qlcnic_83xx_initialize_nic(adapter, 0);
2753                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2754                 qlcnic_83xx_free_mbx_intr(adapter);
2755                 qlcnic_83xx_detach_mailbox_work(adapter);
2756                 qlcnic_83xx_free_mailbox(ahw->mailbox);
2757                 kfree(ahw->fw_info);
2758         }
2759
2760         qlcnic_dcb_free(adapter->dcb);
2761
2762         qlcnic_detach(adapter);
2763
2764         if (adapter->npars != NULL)
2765                 kfree(adapter->npars);
2766         if (adapter->eswitch != NULL)
2767                 kfree(adapter->eswitch);
2768
2769         if (qlcnic_82xx_check(adapter))
2770                 qlcnic_clr_all_drv_state(adapter, 0);
2771
2772         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2773
2774         qlcnic_free_lb_filters_mem(adapter);
2775
2776         qlcnic_teardown_intr(adapter);
2777
2778         qlcnic_remove_sysfs(adapter);
2779
2780         qlcnic_unregister_hwmon_dev(adapter);
2781
2782         qlcnic_cleanup_pci_map(adapter->ahw);
2783
2784         qlcnic_release_firmware(adapter);
2785
2786         pci_disable_pcie_error_reporting(pdev);
2787         pci_release_regions(pdev);
2788         pci_disable_device(pdev);
2789
2790         if (adapter->qlcnic_wq) {
2791                 destroy_workqueue(adapter->qlcnic_wq);
2792                 adapter->qlcnic_wq = NULL;
2793         }
2794
2795         qlcnic_free_adapter_resources(adapter);
2796         kfree(ahw);
2797         free_netdev(netdev);
2798 }
2799
2800 static void qlcnic_shutdown(struct pci_dev *pdev)
2801 {
2802         if (__qlcnic_shutdown(pdev))
2803                 return;
2804
2805         pci_disable_device(pdev);
2806 }
2807
2808 #ifdef CONFIG_PM
2809 static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2810 {
2811         int retval;
2812
2813         retval = __qlcnic_shutdown(pdev);
2814         if (retval)
2815                 return retval;
2816
2817         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2818         return 0;
2819 }
2820
2821 static int qlcnic_resume(struct pci_dev *pdev)
2822 {
2823         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2824         int err;
2825
2826         err = pci_enable_device(pdev);
2827         if (err)
2828                 return err;
2829
2830         pci_set_power_state(pdev, PCI_D0);
2831         pci_set_master(pdev);
2832         pci_restore_state(pdev);
2833
2834         return  __qlcnic_resume(adapter);
2835 }
2836 #endif
2837
2838 static int qlcnic_open(struct net_device *netdev)
2839 {
2840         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2841         int err;
2842
2843         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
2844                 netdev_err(netdev, "%s: Device is in non-operational state\n",
2845                            __func__);
2846
2847                 return -EIO;
2848         }
2849
2850         netif_carrier_off(netdev);
2851
2852         err = qlcnic_attach(adapter);
2853         if (err)
2854                 return err;
2855
2856         err = __qlcnic_up(adapter, netdev);
2857         if (err)
2858                 qlcnic_detach(adapter);
2859
2860         return err;
2861 }
2862
2863 /*
2864  * qlcnic_close - Disables a network interface entry point
2865  */
2866 static int qlcnic_close(struct net_device *netdev)
2867 {
2868         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2869
2870         __qlcnic_down(adapter, netdev);
2871
2872         return 0;
2873 }
2874
2875 #define QLCNIC_VF_LB_BUCKET_SIZE 1
2876
2877 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2878 {
2879         void *head;
2880         int i;
2881         struct net_device *netdev = adapter->netdev;
2882         u32 filter_size = 0;
2883         u16 act_pci_func = 0;
2884
2885         if (adapter->fhash.fmax && adapter->fhash.fhead)
2886                 return;
2887
2888         act_pci_func = adapter->ahw->total_nic_func;
2889         spin_lock_init(&adapter->mac_learn_lock);
2890         spin_lock_init(&adapter->rx_mac_learn_lock);
2891
2892         if (qlcnic_sriov_vf_check(adapter)) {
2893                 filter_size = QLCNIC_83XX_SRIOV_VF_MAX_MAC - 1;
2894                 adapter->fhash.fbucket_size = QLCNIC_VF_LB_BUCKET_SIZE;
2895         } else if (qlcnic_82xx_check(adapter)) {
2896                 filter_size = QLCNIC_LB_MAX_FILTERS;
2897                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2898         } else {
2899                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2900                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2901         }
2902
2903         head = kcalloc(adapter->fhash.fbucket_size,
2904                        sizeof(struct hlist_head), GFP_ATOMIC);
2905
2906         if (!head)
2907                 return;
2908
2909         adapter->fhash.fmax = (filter_size / act_pci_func);
2910         adapter->fhash.fhead = head;
2911
2912         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2913                     act_pci_func, adapter->fhash.fmax);
2914
2915         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2916                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2917
2918         adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2919
2920         head = kcalloc(adapter->rx_fhash.fbucket_size,
2921                        sizeof(struct hlist_head), GFP_ATOMIC);
2922
2923         if (!head)
2924                 return;
2925
2926         adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2927         adapter->rx_fhash.fhead = head;
2928
2929         for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2930                 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2931 }
2932
2933 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2934 {
2935         if (adapter->fhash.fmax && adapter->fhash.fhead)
2936                 kfree(adapter->fhash.fhead);
2937
2938         adapter->fhash.fhead = NULL;
2939         adapter->fhash.fmax = 0;
2940
2941         if (adapter->rx_fhash.fmax && adapter->rx_fhash.fhead)
2942                 kfree(adapter->rx_fhash.fhead);
2943
2944         adapter->rx_fhash.fmax = 0;
2945         adapter->rx_fhash.fhead = NULL;
2946 }
2947
2948 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2949 {
2950         struct net_device *netdev = adapter->netdev;
2951         u32 temp_state, temp_val, temp = 0;
2952         int rv = 0;
2953
2954         if (qlcnic_83xx_check(adapter))
2955                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2956
2957         if (qlcnic_82xx_check(adapter))
2958                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2959
2960         temp_state = qlcnic_get_temp_state(temp);
2961         temp_val = qlcnic_get_temp_val(temp);
2962
2963         if (temp_state == QLCNIC_TEMP_PANIC) {
2964                 dev_err(&netdev->dev,
2965                        "Device temperature %d degrees C exceeds"
2966                        " maximum allowed. Hardware has been shut down.\n",
2967                        temp_val);
2968                 rv = 1;
2969         } else if (temp_state == QLCNIC_TEMP_WARN) {
2970                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2971                         dev_err(&netdev->dev,
2972                                "Device temperature %d degrees C "
2973                                "exceeds operating range."
2974                                " Immediate action needed.\n",
2975                                temp_val);
2976                 }
2977         } else {
2978                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2979                         dev_info(&netdev->dev,
2980                                "Device temperature is now %d degrees C"
2981                                " in normal range.\n", temp_val);
2982                 }
2983         }
2984         adapter->ahw->temp = temp_state;
2985         return rv;
2986 }
2987
2988 static inline void dump_tx_ring_desc(struct qlcnic_host_tx_ring *tx_ring)
2989 {
2990         int i;
2991         struct cmd_desc_type0 *tx_desc_info;
2992
2993         for (i = 0; i < tx_ring->num_desc; i++) {
2994                 tx_desc_info = &tx_ring->desc_head[i];
2995                 pr_info("TX Desc: %d\n", i);
2996                 print_hex_dump(KERN_INFO, "TX: ", DUMP_PREFIX_OFFSET, 16, 1,
2997                                &tx_ring->desc_head[i],
2998                                sizeof(struct cmd_desc_type0), true);
2999         }
3000 }
3001
3002 static void qlcnic_dump_rings(struct qlcnic_adapter *adapter)
3003 {
3004         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
3005         struct net_device *netdev = adapter->netdev;
3006         struct qlcnic_host_rds_ring *rds_ring;
3007         struct qlcnic_host_sds_ring *sds_ring;
3008         struct qlcnic_host_tx_ring *tx_ring;
3009         int ring;
3010
3011         if (!netdev || !netif_running(netdev))
3012                 return;
3013
3014         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
3015                 rds_ring = &recv_ctx->rds_rings[ring];
3016                 if (!rds_ring)
3017                         continue;
3018                 netdev_info(netdev,
3019                             "rds_ring=%d crb_rcv_producer=%d producer=%u num_desc=%u\n",
3020                              ring, readl(rds_ring->crb_rcv_producer),
3021                              rds_ring->producer, rds_ring->num_desc);
3022         }
3023
3024         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3025                 sds_ring = &(recv_ctx->sds_rings[ring]);
3026                 if (!sds_ring)
3027                         continue;
3028                 netdev_info(netdev,
3029                             "sds_ring=%d crb_sts_consumer=%d consumer=%u crb_intr_mask=%d num_desc=%u\n",
3030                             ring, readl(sds_ring->crb_sts_consumer),
3031                             sds_ring->consumer, readl(sds_ring->crb_intr_mask),
3032                             sds_ring->num_desc);
3033         }
3034
3035         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3036                 tx_ring = &adapter->tx_ring[ring];
3037                 if (!tx_ring)
3038                         continue;
3039                 netdev_info(netdev, "Tx ring=%d Context Id=0x%x\n",
3040                             ring, tx_ring->ctx_id);
3041                 netdev_info(netdev,
3042                             "xmit_finished=%llu, xmit_called=%llu, xmit_on=%llu, xmit_off=%llu\n",
3043                             tx_ring->tx_stats.xmit_finished,
3044                             tx_ring->tx_stats.xmit_called,
3045                             tx_ring->tx_stats.xmit_on,
3046                             tx_ring->tx_stats.xmit_off);
3047
3048                 if (tx_ring->crb_intr_mask)
3049                         netdev_info(netdev, "crb_intr_mask=%d\n",
3050                                     readl(tx_ring->crb_intr_mask));
3051
3052                 netdev_info(netdev,
3053                             "hw_producer=%d, sw_producer=%d sw_consumer=%d, hw_consumer=%d\n",
3054                             readl(tx_ring->crb_cmd_producer),
3055                             tx_ring->producer, tx_ring->sw_consumer,
3056                             le32_to_cpu(*(tx_ring->hw_consumer)));
3057
3058                 netdev_info(netdev, "Total desc=%d, Available desc=%d\n",
3059                             tx_ring->num_desc, qlcnic_tx_avail(tx_ring));
3060
3061                 if (netif_msg_tx_err(adapter->ahw))
3062                         dump_tx_ring_desc(tx_ring);
3063         }
3064
3065 }
3066
3067 static void qlcnic_tx_timeout(struct net_device *netdev)
3068 {
3069         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3070
3071         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3072                 return;
3073
3074         qlcnic_dump_rings(adapter);
3075
3076         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS ||
3077             netif_msg_tx_err(adapter->ahw)) {
3078                 netdev_err(netdev, "Tx timeout, reset the adapter.\n");
3079                 if (qlcnic_82xx_check(adapter))
3080                         adapter->need_fw_reset = 1;
3081                 else if (qlcnic_83xx_check(adapter))
3082                         qlcnic_83xx_idc_request_reset(adapter,
3083                                                       QLCNIC_FORCE_FW_DUMP_KEY);
3084         } else {
3085                 netdev_err(netdev, "Tx timeout, reset adapter context.\n");
3086                 adapter->ahw->reset_context = 1;
3087         }
3088 }
3089
3090 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
3091 {
3092         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3093         struct net_device_stats *stats = &netdev->stats;
3094
3095         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
3096                 qlcnic_update_stats(adapter);
3097
3098         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
3099         stats->tx_packets = adapter->stats.xmitfinished;
3100         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
3101         stats->tx_bytes = adapter->stats.txbytes;
3102         stats->rx_dropped = adapter->stats.rxdropped;
3103         stats->tx_dropped = adapter->stats.txdropped;
3104
3105         return stats;
3106 }
3107
3108 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
3109 {
3110         u32 status;
3111
3112         status = readl(adapter->isr_int_vec);
3113
3114         if (!(status & adapter->ahw->int_vec_bit))
3115                 return IRQ_NONE;
3116
3117         /* check interrupt state machine, to be sure */
3118         status = readl(adapter->crb_int_state_reg);
3119         if (!ISR_LEGACY_INT_TRIGGERED(status))
3120                 return IRQ_NONE;
3121
3122         writel(0xffffffff, adapter->tgt_status_reg);
3123         /* read twice to ensure write is flushed */
3124         readl(adapter->isr_int_vec);
3125         readl(adapter->isr_int_vec);
3126
3127         return IRQ_HANDLED;
3128 }
3129
3130 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
3131 {
3132         struct qlcnic_host_sds_ring *sds_ring = data;
3133         struct qlcnic_adapter *adapter = sds_ring->adapter;
3134
3135         if (adapter->flags & QLCNIC_MSIX_ENABLED)
3136                 goto done;
3137         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
3138                 writel(0xffffffff, adapter->tgt_status_reg);
3139                 goto done;
3140         }
3141
3142         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3143                 return IRQ_NONE;
3144
3145 done:
3146         adapter->ahw->diag_cnt++;
3147         qlcnic_enable_sds_intr(adapter, sds_ring);
3148         return IRQ_HANDLED;
3149 }
3150
3151 static irqreturn_t qlcnic_intr(int irq, void *data)
3152 {
3153         struct qlcnic_host_sds_ring *sds_ring = data;
3154         struct qlcnic_adapter *adapter = sds_ring->adapter;
3155
3156         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3157                 return IRQ_NONE;
3158
3159         napi_schedule(&sds_ring->napi);
3160
3161         return IRQ_HANDLED;
3162 }
3163
3164 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
3165 {
3166         struct qlcnic_host_sds_ring *sds_ring = data;
3167         struct qlcnic_adapter *adapter = sds_ring->adapter;
3168
3169         /* clear interrupt */
3170         writel(0xffffffff, adapter->tgt_status_reg);
3171
3172         napi_schedule(&sds_ring->napi);
3173         return IRQ_HANDLED;
3174 }
3175
3176 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
3177 {
3178         struct qlcnic_host_sds_ring *sds_ring = data;
3179
3180         napi_schedule(&sds_ring->napi);
3181         return IRQ_HANDLED;
3182 }
3183
3184 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
3185 {
3186         struct qlcnic_host_tx_ring *tx_ring = data;
3187
3188         napi_schedule(&tx_ring->napi);
3189         return IRQ_HANDLED;
3190 }
3191
3192 #ifdef CONFIG_NET_POLL_CONTROLLER
3193 static void qlcnic_poll_controller(struct net_device *netdev)
3194 {
3195         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3196         struct qlcnic_host_sds_ring *sds_ring;
3197         struct qlcnic_recv_context *recv_ctx;
3198         struct qlcnic_host_tx_ring *tx_ring;
3199         int ring;
3200
3201         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3202                 return;
3203
3204         recv_ctx = adapter->recv_ctx;
3205
3206         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3207                 sds_ring = &recv_ctx->sds_rings[ring];
3208                 qlcnic_disable_sds_intr(adapter, sds_ring);
3209                 napi_schedule(&sds_ring->napi);
3210         }
3211
3212         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
3213                 /* Only Multi-Tx queue capable devices need to
3214                  * schedule NAPI for TX rings
3215                  */
3216                 if ((qlcnic_83xx_check(adapter) &&
3217                      (adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
3218                     (qlcnic_82xx_check(adapter) &&
3219                      !qlcnic_check_multi_tx(adapter)))
3220                         return;
3221
3222                 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3223                         tx_ring = &adapter->tx_ring[ring];
3224                         qlcnic_disable_tx_intr(adapter, tx_ring);
3225                         napi_schedule(&tx_ring->napi);
3226                 }
3227         }
3228 }
3229 #endif
3230
3231 static void
3232 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
3233 {
3234         u32 val;
3235
3236         val = adapter->portnum & 0xf;
3237         val |= encoding << 7;
3238         val |= (jiffies - adapter->dev_rst_time) << 8;
3239
3240         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
3241         adapter->dev_rst_time = jiffies;
3242 }
3243
3244 static int
3245 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
3246 {
3247         u32  val;
3248
3249         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
3250                         state != QLCNIC_DEV_NEED_QUISCENT);
3251
3252         if (qlcnic_api_lock(adapter))
3253                 return -EIO;
3254
3255         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3256
3257         if (state == QLCNIC_DEV_NEED_RESET)
3258                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3259         else if (state == QLCNIC_DEV_NEED_QUISCENT)
3260                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
3261
3262         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3263
3264         qlcnic_api_unlock(adapter);
3265
3266         return 0;
3267 }
3268
3269 static int
3270 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
3271 {
3272         u32  val;
3273
3274         if (qlcnic_api_lock(adapter))
3275                 return -EBUSY;
3276
3277         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3278         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3279         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3280
3281         qlcnic_api_unlock(adapter);
3282
3283         return 0;
3284 }
3285
3286 void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
3287 {
3288         u32  val;
3289
3290         if (qlcnic_api_lock(adapter))
3291                 goto err;
3292
3293         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3294         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
3295         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3296
3297         if (failed) {
3298                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3299                                     QLCNIC_DEV_FAILED);
3300                 dev_info(&adapter->pdev->dev,
3301                                 "Device state set to Failed. Please Reboot\n");
3302         } else if (!(val & 0x11111111))
3303                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3304                                     QLCNIC_DEV_COLD);
3305
3306         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3307         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3308         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3309
3310         qlcnic_api_unlock(adapter);
3311 err:
3312         adapter->fw_fail_cnt = 0;
3313         adapter->flags &= ~QLCNIC_FW_HANG;
3314         clear_bit(__QLCNIC_START_FW, &adapter->state);
3315         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3316 }
3317
3318 /* Grab api lock, before checking state */
3319 static int
3320 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
3321 {
3322         int act, state, active_mask;
3323         struct qlcnic_hardware_context *ahw = adapter->ahw;
3324
3325         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3326         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3327
3328         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
3329                 active_mask = (~(1 << (ahw->pci_func * 4)));
3330                 act = act & active_mask;
3331         }
3332
3333         if (((state & 0x11111111) == (act & 0x11111111)) ||
3334                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
3335                 return 0;
3336         else
3337                 return 1;
3338 }
3339
3340 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
3341 {
3342         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
3343
3344         if (val != QLCNIC_DRV_IDC_VER) {
3345                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
3346                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
3347         }
3348
3349         return 0;
3350 }
3351
3352 static int
3353 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
3354 {
3355         u32 val, prev_state;
3356         u8 dev_init_timeo = adapter->dev_init_timeo;
3357         u8 portnum = adapter->portnum;
3358         u8 ret;
3359
3360         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
3361                 return 1;
3362
3363         if (qlcnic_api_lock(adapter))
3364                 return -1;
3365
3366         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3367         if (!(val & (1 << (portnum * 4)))) {
3368                 QLC_DEV_SET_REF_CNT(val, portnum);
3369                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3370         }
3371
3372         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3373         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
3374
3375         switch (prev_state) {
3376         case QLCNIC_DEV_COLD:
3377                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3378                                     QLCNIC_DEV_INITIALIZING);
3379                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
3380                                     QLCNIC_DRV_IDC_VER);
3381                 qlcnic_idc_debug_info(adapter, 0);
3382                 qlcnic_api_unlock(adapter);
3383                 return 1;
3384
3385         case QLCNIC_DEV_READY:
3386                 ret = qlcnic_check_idc_ver(adapter);
3387                 qlcnic_api_unlock(adapter);
3388                 return ret;
3389
3390         case QLCNIC_DEV_NEED_RESET:
3391                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3392                 QLC_DEV_SET_RST_RDY(val, portnum);
3393                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3394                 break;
3395
3396         case QLCNIC_DEV_NEED_QUISCENT:
3397                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3398                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
3399                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3400                 break;
3401
3402         case QLCNIC_DEV_FAILED:
3403                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
3404                 qlcnic_api_unlock(adapter);
3405                 return -1;
3406
3407         case QLCNIC_DEV_INITIALIZING:
3408         case QLCNIC_DEV_QUISCENT:
3409                 break;
3410         }
3411
3412         qlcnic_api_unlock(adapter);
3413
3414         do {
3415                 msleep(1000);
3416                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3417
3418                 if (prev_state == QLCNIC_DEV_QUISCENT)
3419                         continue;
3420         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
3421
3422         if (!dev_init_timeo) {
3423                 dev_err(&adapter->pdev->dev,
3424                         "Waiting for device to initialize timeout\n");
3425                 return -1;
3426         }
3427
3428         if (qlcnic_api_lock(adapter))
3429                 return -1;
3430
3431         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3432         QLC_DEV_CLR_RST_QSCNT(val, portnum);
3433         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3434
3435         ret = qlcnic_check_idc_ver(adapter);
3436         qlcnic_api_unlock(adapter);
3437
3438         return ret;
3439 }
3440
3441 static void
3442 qlcnic_fwinit_work(struct work_struct *work)
3443 {
3444         struct qlcnic_adapter *adapter = container_of(work,
3445                         struct qlcnic_adapter, fw_work.work);
3446         u32 dev_state = 0xf;
3447         u32 val;
3448
3449         if (qlcnic_api_lock(adapter))
3450                 goto err_ret;
3451
3452         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3453         if (dev_state == QLCNIC_DEV_QUISCENT ||
3454             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3455                 qlcnic_api_unlock(adapter);
3456                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
3457                                                 FW_POLL_DELAY * 2);
3458                 return;
3459         }
3460
3461         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
3462                 qlcnic_api_unlock(adapter);
3463                 goto wait_npar;
3464         }
3465
3466         if (dev_state == QLCNIC_DEV_INITIALIZING ||
3467             dev_state == QLCNIC_DEV_READY) {
3468                 dev_info(&adapter->pdev->dev, "Detected state change from "
3469                                 "DEV_NEED_RESET, skipping ack check\n");
3470                 goto skip_ack_check;
3471         }
3472
3473         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
3474                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
3475                                         adapter->reset_ack_timeo);
3476                 goto skip_ack_check;
3477         }
3478
3479         if (!qlcnic_check_drv_state(adapter)) {
3480 skip_ack_check:
3481                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3482
3483                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
3484                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3485                                             QLCNIC_DEV_INITIALIZING);
3486                         set_bit(__QLCNIC_START_FW, &adapter->state);
3487                         QLCDB(adapter, DRV, "Restarting fw\n");
3488                         qlcnic_idc_debug_info(adapter, 0);
3489                         val = QLC_SHARED_REG_RD32(adapter,
3490                                                   QLCNIC_CRB_DRV_STATE);
3491                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3492                         QLC_SHARED_REG_WR32(adapter,
3493                                             QLCNIC_CRB_DRV_STATE, val);
3494                 }
3495
3496                 qlcnic_api_unlock(adapter);
3497
3498                 rtnl_lock();
3499                 if (qlcnic_check_fw_dump_state(adapter) &&
3500                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3501                         QLCDB(adapter, DRV, "Take FW dump\n");
3502                         qlcnic_dump_fw(adapter);
3503                         adapter->flags |= QLCNIC_FW_HANG;
3504                 }
3505                 rtnl_unlock();
3506
3507                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
3508                 if (!adapter->nic_ops->start_firmware(adapter)) {
3509                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3510                         adapter->fw_wait_cnt = 0;
3511                         return;
3512                 }
3513                 goto err_ret;
3514         }
3515
3516         qlcnic_api_unlock(adapter);
3517
3518 wait_npar:
3519         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3520         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
3521
3522         switch (dev_state) {
3523         case QLCNIC_DEV_READY:
3524                 if (!qlcnic_start_firmware(adapter)) {
3525                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3526                         adapter->fw_wait_cnt = 0;
3527                         return;
3528                 }
3529         case QLCNIC_DEV_FAILED:
3530                 break;
3531         default:
3532                 qlcnic_schedule_work(adapter,
3533                         qlcnic_fwinit_work, FW_POLL_DELAY);
3534                 return;
3535         }
3536
3537 err_ret:
3538         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
3539                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
3540         netif_device_attach(adapter->netdev);
3541         qlcnic_clr_all_drv_state(adapter, 0);
3542 }
3543
3544 static void
3545 qlcnic_detach_work(struct work_struct *work)
3546 {
3547         struct qlcnic_adapter *adapter = container_of(work,
3548                         struct qlcnic_adapter, fw_work.work);
3549         struct net_device *netdev = adapter->netdev;
3550         u32 status;
3551
3552         netif_device_detach(netdev);
3553
3554         /* Dont grab rtnl lock during Quiscent mode */
3555         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3556                 if (netif_running(netdev))
3557                         __qlcnic_down(adapter, netdev);
3558         } else
3559                 qlcnic_down(adapter, netdev);
3560
3561         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3562
3563         if (status & QLCNIC_RCODE_FATAL_ERROR) {
3564                 dev_err(&adapter->pdev->dev,
3565                         "Detaching the device: peg halt status1=0x%x\n",
3566                                         status);
3567
3568                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
3569                         dev_err(&adapter->pdev->dev,
3570                         "On board active cooling fan failed. "
3571                                 "Device has been halted.\n");
3572                         dev_err(&adapter->pdev->dev,
3573                                 "Replace the adapter.\n");
3574                 }
3575
3576                 goto err_ret;
3577         }
3578
3579         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
3580                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
3581                         adapter->ahw->temp);
3582                 goto err_ret;
3583         }
3584
3585         /* Dont ack if this instance is the reset owner */
3586         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3587                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
3588                         dev_err(&adapter->pdev->dev,
3589                                 "Failed to set driver state,"
3590                                         "detaching the device.\n");
3591                         goto err_ret;
3592                 }
3593         }
3594
3595         adapter->fw_wait_cnt = 0;
3596
3597         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3598
3599         return;
3600
3601 err_ret:
3602         netif_device_attach(netdev);
3603         qlcnic_clr_all_drv_state(adapter, 1);
3604 }
3605
3606 /*Transit NPAR state to NON Operational */
3607 static void
3608 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3609 {
3610         u32 state;
3611
3612         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3613         if (state == QLCNIC_DEV_NPAR_NON_OPER)
3614                 return;
3615
3616         if (qlcnic_api_lock(adapter))
3617                 return;
3618         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3619                             QLCNIC_DEV_NPAR_NON_OPER);
3620         qlcnic_api_unlock(adapter);
3621 }
3622
3623 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter,
3624                                           u32 key)
3625 {
3626         u32 state, xg_val = 0, gb_val = 0;
3627
3628         qlcnic_xg_set_xg0_mask(xg_val);
3629         qlcnic_xg_set_xg1_mask(xg_val);
3630         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3631         qlcnic_gb_set_gb0_mask(gb_val);
3632         qlcnic_gb_set_gb1_mask(gb_val);
3633         qlcnic_gb_set_gb2_mask(gb_val);
3634         qlcnic_gb_set_gb3_mask(gb_val);
3635         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3636         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3637                                 " on all ports\n");
3638         adapter->need_fw_reset = 1;
3639
3640         if (qlcnic_api_lock(adapter))
3641                 return;
3642
3643         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3644
3645         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
3646                 netdev_err(adapter->netdev, "%s: Device is in non-operational state\n",
3647                            __func__);
3648                 qlcnic_api_unlock(adapter);
3649
3650                 return;
3651         }
3652
3653         if (state == QLCNIC_DEV_READY) {
3654                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3655                                     QLCNIC_DEV_NEED_RESET);
3656                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3657                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3658                 qlcnic_idc_debug_info(adapter, 0);
3659         }
3660
3661         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3662                             QLCNIC_DEV_NPAR_NON_OPER);
3663         qlcnic_api_unlock(adapter);
3664 }
3665
3666 /* Transit to NPAR READY state from NPAR NOT READY state */
3667 static void
3668 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3669 {
3670         if (qlcnic_api_lock(adapter))
3671                 return;
3672
3673         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3674                             QLCNIC_DEV_NPAR_OPER);
3675         QLCDB(adapter, DRV, "NPAR operational state set\n");
3676
3677         qlcnic_api_unlock(adapter);
3678 }
3679
3680 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3681                           work_func_t func, int delay)
3682 {
3683         if (test_bit(__QLCNIC_AER, &adapter->state))
3684                 return;
3685
3686         INIT_DELAYED_WORK(&adapter->fw_work, func);
3687         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3688                            round_jiffies_relative(delay));
3689 }
3690
3691 static void
3692 qlcnic_attach_work(struct work_struct *work)
3693 {
3694         struct qlcnic_adapter *adapter = container_of(work,
3695                                 struct qlcnic_adapter, fw_work.work);
3696         struct net_device *netdev = adapter->netdev;
3697         u32 npar_state;
3698
3699         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3700                 npar_state = QLC_SHARED_REG_RD32(adapter,
3701                                                  QLCNIC_CRB_DEV_NPAR_STATE);
3702                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3703                         qlcnic_clr_all_drv_state(adapter, 0);
3704                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3705                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
3706                                                         FW_POLL_DELAY);
3707                 else
3708                         goto attach;
3709                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3710                 return;
3711         }
3712 attach:
3713         qlcnic_dcb_get_info(adapter->dcb);
3714
3715         if (netif_running(netdev)) {
3716                 if (qlcnic_up(adapter, netdev))
3717                         goto done;
3718
3719                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3720         }
3721
3722 done:
3723         netif_device_attach(netdev);
3724         adapter->fw_fail_cnt = 0;
3725         adapter->flags &= ~QLCNIC_FW_HANG;
3726         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3727         if (adapter->portnum == 0)
3728                 qlcnic_set_drv_version(adapter);
3729
3730         if (!qlcnic_clr_drv_state(adapter))
3731                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3732                                                         FW_POLL_DELAY);
3733 }
3734
3735 static int
3736 qlcnic_check_health(struct qlcnic_adapter *adapter)
3737 {
3738         struct qlcnic_hardware_context *ahw = adapter->ahw;
3739         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
3740         u32 state = 0, heartbeat;
3741         u32 peg_status;
3742         int err = 0;
3743
3744         if (qlcnic_check_temp(adapter))
3745                 goto detach;
3746
3747         if (adapter->need_fw_reset)
3748                 qlcnic_dev_request_reset(adapter, 0);
3749
3750         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3751         if (state == QLCNIC_DEV_NEED_RESET) {
3752                 qlcnic_set_npar_non_operational(adapter);
3753                 adapter->need_fw_reset = 1;
3754         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3755                 goto detach;
3756
3757         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3758         if (heartbeat != adapter->heartbeat) {
3759                 adapter->heartbeat = heartbeat;
3760                 adapter->fw_fail_cnt = 0;
3761                 if (adapter->need_fw_reset)
3762                         goto detach;
3763
3764                 if (ahw->reset_context && qlcnic_auto_fw_reset)
3765                         qlcnic_reset_hw_context(adapter);
3766
3767                 return 0;
3768         }
3769
3770         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3771                 return 0;
3772
3773         adapter->flags |= QLCNIC_FW_HANG;
3774
3775         qlcnic_dev_request_reset(adapter, 0);
3776
3777         if (qlcnic_auto_fw_reset)
3778                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3779
3780         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3781         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3782         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3783                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3784                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3785                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3786                         "PEG_NET_4_PC: 0x%x\n",
3787                         peg_status,
3788                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3789                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3790                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3791                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3792                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3793                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3794         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3795                 dev_err(&adapter->pdev->dev,
3796                         "Firmware aborted with error code 0x00006700. "
3797                                 "Device is being reset.\n");
3798 detach:
3799         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3800                 QLCNIC_DEV_NEED_RESET;
3801
3802         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3803                                                       &adapter->state)) {
3804
3805                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3806                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3807         } else if (!qlcnic_auto_fw_reset && fw_dump->enable &&
3808                    adapter->flags & QLCNIC_FW_RESET_OWNER) {
3809                 qlcnic_dump_fw(adapter);
3810         }
3811
3812         return 1;
3813 }
3814
3815 void qlcnic_fw_poll_work(struct work_struct *work)
3816 {
3817         struct qlcnic_adapter *adapter = container_of(work,
3818                                 struct qlcnic_adapter, fw_work.work);
3819
3820         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3821                 goto reschedule;
3822
3823
3824         if (qlcnic_check_health(adapter))
3825                 return;
3826
3827         if (adapter->fhash.fnum)
3828                 qlcnic_prune_lb_filters(adapter);
3829
3830 reschedule:
3831         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3832 }
3833
3834 static int qlcnic_is_first_func(struct pci_dev *pdev)
3835 {
3836         struct pci_dev *oth_pdev;
3837         int val = pdev->devfn;
3838
3839         while (val-- > 0) {
3840                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3841                         (pdev->bus), pdev->bus->number,
3842                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3843                 if (!oth_pdev)
3844                         continue;
3845
3846                 if (oth_pdev->current_state != PCI_D3cold) {
3847                         pci_dev_put(oth_pdev);
3848                         return 0;
3849                 }
3850                 pci_dev_put(oth_pdev);
3851         }
3852         return 1;
3853 }
3854
3855 static int qlcnic_attach_func(struct pci_dev *pdev)
3856 {
3857         int err, first_func;
3858         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3859         struct net_device *netdev = adapter->netdev;
3860
3861         pdev->error_state = pci_channel_io_normal;
3862
3863         err = pci_enable_device(pdev);
3864         if (err)
3865                 return err;
3866
3867         pci_set_master(pdev);
3868         pci_restore_state(pdev);
3869
3870         first_func = qlcnic_is_first_func(pdev);
3871
3872         if (qlcnic_api_lock(adapter))
3873                 return -EINVAL;
3874
3875         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3876                 adapter->need_fw_reset = 1;
3877                 set_bit(__QLCNIC_START_FW, &adapter->state);
3878                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3879                                     QLCNIC_DEV_INITIALIZING);
3880                 QLCDB(adapter, DRV, "Restarting fw\n");
3881         }
3882         qlcnic_api_unlock(adapter);
3883
3884         err = qlcnic_start_firmware(adapter);
3885         if (err)
3886                 return err;
3887
3888         qlcnic_clr_drv_state(adapter);
3889         kfree(adapter->msix_entries);
3890         adapter->msix_entries = NULL;
3891         err = qlcnic_setup_intr(adapter);
3892
3893         if (err) {
3894                 kfree(adapter->msix_entries);
3895                 netdev_err(netdev, "failed to setup interrupt\n");
3896                 return err;
3897         }
3898
3899         if (netif_running(netdev)) {
3900                 err = qlcnic_attach(adapter);
3901                 if (err) {
3902                         qlcnic_clr_all_drv_state(adapter, 1);
3903                         clear_bit(__QLCNIC_AER, &adapter->state);
3904                         netif_device_attach(netdev);
3905                         return err;
3906                 }
3907
3908                 err = qlcnic_up(adapter, netdev);
3909                 if (err)
3910                         goto done;
3911
3912                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3913         }
3914  done:
3915         netif_device_attach(netdev);
3916         return err;
3917 }
3918
3919 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
3920                                                       pci_channel_state_t state)
3921 {
3922         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3923         struct net_device *netdev = adapter->netdev;
3924
3925         if (state == pci_channel_io_perm_failure)
3926                 return PCI_ERS_RESULT_DISCONNECT;
3927
3928         if (state == pci_channel_io_normal)
3929                 return PCI_ERS_RESULT_RECOVERED;
3930
3931         set_bit(__QLCNIC_AER, &adapter->state);
3932         netif_device_detach(netdev);
3933
3934         cancel_delayed_work_sync(&adapter->fw_work);
3935
3936         if (netif_running(netdev))
3937                 qlcnic_down(adapter, netdev);
3938
3939         qlcnic_detach(adapter);
3940         qlcnic_teardown_intr(adapter);
3941
3942         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3943
3944         pci_save_state(pdev);
3945         pci_disable_device(pdev);
3946
3947         return PCI_ERS_RESULT_NEED_RESET;
3948 }
3949
3950 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
3951 {
3952         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3953                                 PCI_ERS_RESULT_RECOVERED;
3954 }
3955
3956 static void qlcnic_82xx_io_resume(struct pci_dev *pdev)
3957 {
3958         u32 state;
3959         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3960
3961         pci_cleanup_aer_uncorrect_error_status(pdev);
3962         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3963         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3964                                                             &adapter->state))
3965                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3966                                      FW_POLL_DELAY);
3967 }
3968
3969 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3970                                                  pci_channel_state_t state)
3971 {
3972         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3973         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3974
3975         if (hw_ops->io_error_detected) {
3976                 return hw_ops->io_error_detected(pdev, state);
3977         } else {
3978                 dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
3979                 return PCI_ERS_RESULT_DISCONNECT;
3980         }
3981 }
3982
3983 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3984 {
3985         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3986         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3987
3988         if (hw_ops->io_slot_reset) {
3989                 return hw_ops->io_slot_reset(pdev);
3990         } else {
3991                 dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
3992                 return PCI_ERS_RESULT_DISCONNECT;
3993         }
3994 }
3995
3996 static void qlcnic_io_resume(struct pci_dev *pdev)
3997 {
3998         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3999         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
4000
4001         if (hw_ops->io_resume)
4002                 hw_ops->io_resume(pdev);
4003         else
4004                 dev_err(&pdev->dev, "AER resume handler not registered.\n");
4005 }
4006
4007
4008 static int
4009 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
4010 {
4011         int err;
4012
4013         err = qlcnic_can_start_firmware(adapter);
4014         if (err)
4015                 return err;
4016
4017         err = qlcnic_check_npar_opertional(adapter);
4018         if (err)
4019                 return err;
4020
4021         err = qlcnic_initialize_nic(adapter);
4022         if (err)
4023                 return err;
4024
4025         qlcnic_check_options(adapter);
4026
4027         err = qlcnic_set_eswitch_port_config(adapter);
4028         if (err)
4029                 return err;
4030
4031         adapter->need_fw_reset = 0;
4032
4033         return err;
4034 }
4035
4036 int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt,
4037                           int queue_type)
4038 {
4039         struct net_device *netdev = adapter->netdev;
4040         u8 max_hw_rings = 0;
4041         char buf[8];
4042         int cur_rings;
4043
4044         if (queue_type == QLCNIC_RX_QUEUE) {
4045                 max_hw_rings = adapter->max_sds_rings;
4046                 cur_rings = adapter->drv_sds_rings;
4047                 strcpy(buf, "SDS");
4048         } else if (queue_type == QLCNIC_TX_QUEUE) {
4049                 max_hw_rings = adapter->max_tx_rings;
4050                 cur_rings = adapter->drv_tx_rings;
4051                 strcpy(buf, "Tx");
4052         }
4053
4054         if (!is_power_of_2(ring_cnt)) {
4055                 netdev_err(netdev, "%s rings value should be a power of 2\n",
4056                            buf);
4057                 return -EINVAL;
4058         }
4059
4060         if (qlcnic_82xx_check(adapter) && (queue_type == QLCNIC_TX_QUEUE) &&
4061             !qlcnic_check_multi_tx(adapter)) {
4062                         netdev_err(netdev, "No Multi Tx queue support\n");
4063                         return -EINVAL;
4064         }
4065
4066         if (ring_cnt > num_online_cpus()) {
4067                 netdev_err(netdev,
4068                            "%s value[%u] should not be higher than, number of online CPUs\n",
4069                            buf, num_online_cpus());
4070                 return -EINVAL;
4071         }
4072
4073         return 0;
4074 }
4075
4076 int qlcnic_setup_rings(struct qlcnic_adapter *adapter)
4077 {
4078         struct net_device *netdev = adapter->netdev;
4079         u8 tx_rings, rx_rings;
4080         int err;
4081
4082         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
4083                 return -EBUSY;
4084
4085         tx_rings = adapter->drv_tss_rings;
4086         rx_rings = adapter->drv_rss_rings;
4087
4088         netif_device_detach(netdev);
4089
4090         err = qlcnic_set_real_num_queues(adapter, tx_rings, rx_rings);
4091         if (err)
4092                 goto done;
4093
4094         if (netif_running(netdev))
4095                 __qlcnic_down(adapter, netdev);
4096
4097         qlcnic_detach(adapter);
4098
4099         if (qlcnic_83xx_check(adapter)) {
4100                 qlcnic_83xx_free_mbx_intr(adapter);
4101                 qlcnic_83xx_enable_mbx_poll(adapter);
4102         }
4103
4104         qlcnic_teardown_intr(adapter);
4105
4106         err = qlcnic_setup_intr(adapter);
4107         if (err) {
4108                 kfree(adapter->msix_entries);
4109                 netdev_err(netdev, "failed to setup interrupt\n");
4110                 return err;
4111         }
4112
4113         /* Check if we need to update real_num_{tx|rx}_queues because
4114          * qlcnic_setup_intr() may change Tx/Rx rings size
4115          */
4116         if ((tx_rings != adapter->drv_tx_rings) ||
4117             (rx_rings != adapter->drv_sds_rings)) {
4118                 err = qlcnic_set_real_num_queues(adapter,
4119                                                  adapter->drv_tx_rings,
4120                                                  adapter->drv_sds_rings);
4121                 if (err)
4122                         goto done;
4123         }
4124
4125         if (qlcnic_83xx_check(adapter)) {
4126                 qlcnic_83xx_initialize_nic(adapter, 1);
4127                 err = qlcnic_83xx_setup_mbx_intr(adapter);
4128                 qlcnic_83xx_disable_mbx_poll(adapter);
4129                 if (err) {
4130                         dev_err(&adapter->pdev->dev,
4131                                 "failed to setup mbx interrupt\n");
4132                         goto done;
4133                 }
4134         }
4135
4136         if (netif_running(netdev)) {
4137                 err = qlcnic_attach(adapter);
4138                 if (err)
4139                         goto done;
4140                 err = __qlcnic_up(adapter, netdev);
4141                 if (err)
4142                         goto done;
4143                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
4144         }
4145 done:
4146         netif_device_attach(netdev);
4147         clear_bit(__QLCNIC_RESETTING, &adapter->state);
4148         return err;
4149 }
4150
4151 #ifdef CONFIG_INET
4152
4153 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4154
4155 static void
4156 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4157                         struct net_device *dev, unsigned long event)
4158 {
4159         struct in_device *indev;
4160
4161         indev = in_dev_get(dev);
4162         if (!indev)
4163                 return;
4164
4165         for_ifa(indev) {
4166                 switch (event) {
4167                 case NETDEV_UP:
4168                         qlcnic_config_ipaddr(adapter,
4169                                         ifa->ifa_address, QLCNIC_IP_UP);
4170                         break;
4171                 case NETDEV_DOWN:
4172                         qlcnic_config_ipaddr(adapter,
4173                                         ifa->ifa_address, QLCNIC_IP_DOWN);
4174                         break;
4175                 default:
4176                         break;
4177                 }
4178         } endfor_ifa(indev);
4179
4180         in_dev_put(indev);
4181 }
4182
4183 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4184 {
4185         struct qlcnic_adapter *adapter = netdev_priv(netdev);
4186         struct net_device *dev;
4187         u16 vid;
4188
4189         qlcnic_config_indev_addr(adapter, netdev, event);
4190
4191         rcu_read_lock();
4192         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
4193                 dev = __vlan_find_dev_deep_rcu(netdev, htons(ETH_P_8021Q), vid);
4194                 if (!dev)
4195                         continue;
4196                 qlcnic_config_indev_addr(adapter, dev, event);
4197         }
4198         rcu_read_unlock();
4199 }
4200
4201 static int qlcnic_netdev_event(struct notifier_block *this,
4202                                  unsigned long event, void *ptr)
4203 {
4204         struct qlcnic_adapter *adapter;
4205         struct net_device *dev = netdev_notifier_info_to_dev(ptr);
4206
4207 recheck:
4208         if (dev == NULL)
4209                 goto done;
4210
4211         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4212                 dev = vlan_dev_real_dev(dev);
4213                 goto recheck;
4214         }
4215
4216         if (!is_qlcnic_netdev(dev))
4217                 goto done;
4218
4219         adapter = netdev_priv(dev);
4220
4221         if (!adapter)
4222                 goto done;
4223
4224         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4225                 goto done;
4226
4227         qlcnic_config_indev_addr(adapter, dev, event);
4228 done:
4229         return NOTIFY_DONE;
4230 }
4231
4232 static int
4233 qlcnic_inetaddr_event(struct notifier_block *this,
4234                 unsigned long event, void *ptr)
4235 {
4236         struct qlcnic_adapter *adapter;
4237         struct net_device *dev;
4238
4239         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4240
4241         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4242
4243 recheck:
4244         if (dev == NULL)
4245                 goto done;
4246
4247         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4248                 dev = vlan_dev_real_dev(dev);
4249                 goto recheck;
4250         }
4251
4252         if (!is_qlcnic_netdev(dev))
4253                 goto done;
4254
4255         adapter = netdev_priv(dev);
4256
4257         if (!adapter)
4258                 goto done;
4259
4260         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4261                 goto done;
4262
4263         switch (event) {
4264         case NETDEV_UP:
4265                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4266
4267                 break;
4268         case NETDEV_DOWN:
4269                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4270
4271                 break;
4272         default:
4273                 break;
4274         }
4275
4276 done:
4277         return NOTIFY_DONE;
4278 }
4279
4280 static struct notifier_block    qlcnic_netdev_cb = {
4281         .notifier_call = qlcnic_netdev_event,
4282 };
4283
4284 static struct notifier_block qlcnic_inetaddr_cb = {
4285         .notifier_call = qlcnic_inetaddr_event,
4286 };
4287 #else
4288 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4289 { }
4290 #endif
4291 static const struct pci_error_handlers qlcnic_err_handler = {
4292         .error_detected = qlcnic_io_error_detected,
4293         .slot_reset = qlcnic_io_slot_reset,
4294         .resume = qlcnic_io_resume,
4295 };
4296
4297 static struct pci_driver qlcnic_driver = {
4298         .name = qlcnic_driver_name,
4299         .id_table = qlcnic_pci_tbl,
4300         .probe = qlcnic_probe,
4301         .remove = qlcnic_remove,
4302 #ifdef CONFIG_PM
4303         .suspend = qlcnic_suspend,
4304         .resume = qlcnic_resume,
4305 #endif
4306         .shutdown = qlcnic_shutdown,
4307         .err_handler = &qlcnic_err_handler,
4308 #ifdef CONFIG_QLCNIC_SRIOV
4309         .sriov_configure = qlcnic_pci_sriov_configure,
4310 #endif
4311
4312 };
4313
4314 static int __init qlcnic_init_module(void)
4315 {
4316         int ret;
4317
4318         printk(KERN_INFO "%s\n", qlcnic_driver_string);
4319
4320 #ifdef CONFIG_INET
4321         register_netdevice_notifier(&qlcnic_netdev_cb);
4322         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4323 #endif
4324
4325         ret = pci_register_driver(&qlcnic_driver);
4326         if (ret) {
4327 #ifdef CONFIG_INET
4328                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4329                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4330 #endif
4331         }
4332
4333         return ret;
4334 }
4335
4336 module_init(qlcnic_init_module);
4337
4338 static void __exit qlcnic_exit_module(void)
4339 {
4340         pci_unregister_driver(&qlcnic_driver);
4341
4342 #ifdef CONFIG_INET
4343         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4344         unregister_netdevice_notifier(&qlcnic_netdev_cb);
4345 #endif
4346 }
4347
4348 module_exit(qlcnic_exit_module);