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