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

   1 /*
   2  * QLogic qlcnic NIC Driver
   3  * Copyright (c) 2009-2013 QLogic Corporation
   4  *
   5  * See LICENSE.qlcnic for copyright and licensing details.
   6  */
   7
   8 #include <linux/vmalloc.h>
   9 #include <linux/interrupt.h>
  10 #include <linux/swab.h>
  11 #include <linux/dma-mapping.h>
  12 #include <linux/if_vlan.h>
  13 #include <net/ip.h>
  14 #include <linux/ipv6.h>
  15 #include <linux/inetdevice.h>
  16 #include <linux/aer.h>
  17 #include <linux/log2.h>
  18 #include <linux/pci.h>
  19 #ifdef CONFIG_QLCNIC_VXLAN
  20 #include <net/vxlan.h>
  21 #endif
  22
  23 #include "qlcnic.h"
  24 #include "qlcnic_sriov.h"
  25 #include "qlcnic_hw.h"
  26
  27 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
  28 MODULE_LICENSE("GPL");
  29 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
  30 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
  31
  32 char qlcnic_driver_name[] = "qlcnic";
  33 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
  34         "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
  35
  36 static int qlcnic_mac_learn;
  37 module_param(qlcnic_mac_learn, int, 0444);
  38 MODULE_PARM_DESC(qlcnic_mac_learn,
  39                  "Mac Filter (0=learning is disabled, 1=Driver learning is enabled, 2=FDB learning is enabled)");
  40
  41 int qlcnic_use_msi = 1;
  42 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled)");
  43 module_param_named(use_msi, qlcnic_use_msi, int, 0444);
  44
  45 int qlcnic_use_msi_x = 1;
  46 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled)");
  47 module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444);
  48
  49 int qlcnic_auto_fw_reset = 1;
  50 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled)");
  51 module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644);
  52
  53 int qlcnic_load_fw_file;
  54 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)");
  55 module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);
  56
  57 static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
  58 static void qlcnic_remove(struct pci_dev *pdev);
  59 static int qlcnic_open(struct net_device *netdev);
  60 static int qlcnic_close(struct net_device *netdev);
  61 static void qlcnic_tx_timeout(struct net_device *netdev);
  62 static void qlcnic_attach_work(struct work_struct *work);
  63 static void qlcnic_fwinit_work(struct work_struct *work);
  64 #ifdef CONFIG_NET_POLL_CONTROLLER
  65 static void qlcnic_poll_controller(struct net_device *netdev);
  66 #endif
  67
  68 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
  69 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
  70
  71 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
  72 static irqreturn_t qlcnic_intr(int irq, void *data);
  73 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
  74 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
  75 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data);
  76
  77 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
  78 static int qlcnic_start_firmware(struct qlcnic_adapter *);
  79
  80 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
  81 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
  82 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
  83 static int qlcnic_vlan_rx_add(struct net_device *, __be16, u16);
  84 static int qlcnic_vlan_rx_del(struct net_device *, __be16, u16);
  85
  86 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *);
  87 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *, u32);
  88 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *);
  89 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *);
  90 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *);
  91 static void qlcnic_82xx_io_resume(struct pci_dev *);
  92 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *);
  93 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *,
  94                                                       pci_channel_state_t);
  95 static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
  96 {
  97         struct qlcnic_hardware_context *ahw = adapter->ahw;
  98
  99         if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
 100                 return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
 101         else
 102                 return 1;
 103 }
 104
 105 /*  PCI Device ID Table  */
 106 #define ENTRY(device) \
 107         {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
 108         .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
 109
 110 static const struct pci_device_id qlcnic_pci_tbl[] = {
 111         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
 112         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
 113         ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE834X),
 114         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE8830),
 115         ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE8C30),
 116         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE844X),
 117         ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE844X),
 118         {0,}
 119 };
 120
 121 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
 122
 123
 124 inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
 125 {
 126         writel(tx_ring->producer, tx_ring->crb_cmd_producer);
 127 }
 128
 129 static const u32 msi_tgt_status[8] = {
 130         ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
 131         ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
 132         ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
 133         ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
 134 };
 135
 136 static const u32 qlcnic_reg_tbl[] = {
 137         0x1B20A8,       /* PEG_HALT_STAT1 */
 138         0x1B20AC,       /* PEG_HALT_STAT2 */
 139         0x1B20B0,       /* FW_HEARTBEAT */
 140         0x1B2100,       /* LOCK ID */
 141         0x1B2128,       /* FW_CAPABILITIES */
 142         0x1B2138,       /* drv active */
 143         0x1B2140,       /* dev state */
 144         0x1B2144,       /* drv state */
 145         0x1B2148,       /* drv scratch */
 146         0x1B214C,       /* dev partition info */
 147         0x1B2174,       /* drv idc ver */
 148         0x1B2150,       /* fw version major */
 149         0x1B2154,       /* fw version minor */
 150         0x1B2158,       /* fw version sub */
 151         0x1B219C,       /* npar state */
 152         0x1B21FC,       /* FW_IMG_VALID */
 153         0x1B2250,       /* CMD_PEG_STATE */
 154         0x1B233C,       /* RCV_PEG_STATE */
 155         0x1B23B4,       /* ASIC TEMP */
 156         0x1B216C,       /* FW api */
 157         0x1B2170,       /* drv op mode */
 158         0x13C010,       /* flash lock */
 159         0x13C014,       /* flash unlock */
 160 };
 161
 162 static const struct qlcnic_board_info qlcnic_boards[] = {
 163         { PCI_VENDOR_ID_QLOGIC,
 164           PCI_DEVICE_ID_QLOGIC_QLE844X,
 165           0x0,
 166           0x0,
 167           "8400 series 10GbE Converged Network Adapter (TCP/IP Networking)" },
 168         { PCI_VENDOR_ID_QLOGIC,
 169           PCI_DEVICE_ID_QLOGIC_QLE834X,
 170           PCI_VENDOR_ID_QLOGIC,
 171           0x24e,
 172           "8300 Series Dual Port 10GbE Converged Network Adapter "
 173           "(TCP/IP Networking)" },
 174         { PCI_VENDOR_ID_QLOGIC,
 175           PCI_DEVICE_ID_QLOGIC_QLE834X,
 176           PCI_VENDOR_ID_QLOGIC,
 177           0x243,
 178           "8300 Series Single Port 10GbE Converged Network Adapter "
 179           "(TCP/IP Networking)" },
 180         { PCI_VENDOR_ID_QLOGIC,
 181           PCI_DEVICE_ID_QLOGIC_QLE834X,
 182           PCI_VENDOR_ID_QLOGIC,
 183           0x24a,
 184           "8300 Series Dual Port 10GbE Converged Network Adapter "
 185           "(TCP/IP Networking)" },
 186         { PCI_VENDOR_ID_QLOGIC,
 187           PCI_DEVICE_ID_QLOGIC_QLE834X,
 188           PCI_VENDOR_ID_QLOGIC,
 189           0x246,
 190           "8300 Series Dual Port 10GbE Converged Network Adapter "
 191           "(TCP/IP Networking)" },
 192         { PCI_VENDOR_ID_QLOGIC,
 193           PCI_DEVICE_ID_QLOGIC_QLE834X,
 194           PCI_VENDOR_ID_QLOGIC,
 195           0x252,
 196           "8300 Series Dual Port 10GbE Converged Network Adapter "
 197           "(TCP/IP Networking)" },
 198         { PCI_VENDOR_ID_QLOGIC,
 199           PCI_DEVICE_ID_QLOGIC_QLE834X,
 200           PCI_VENDOR_ID_QLOGIC,
 201           0x26e,
 202           "8300 Series Dual Port 10GbE Converged Network Adapter "
 203           "(TCP/IP Networking)" },
 204         { PCI_VENDOR_ID_QLOGIC,
 205           PCI_DEVICE_ID_QLOGIC_QLE834X,
 206           PCI_VENDOR_ID_QLOGIC,
 207           0x260,
 208           "8300 Series Dual Port 10GbE Converged Network Adapter "
 209           "(TCP/IP Networking)" },
 210         { PCI_VENDOR_ID_QLOGIC,
 211           PCI_DEVICE_ID_QLOGIC_QLE834X,
 212           PCI_VENDOR_ID_QLOGIC,
 213           0x266,
 214           "8300 Series Single Port 10GbE Converged Network Adapter "
 215           "(TCP/IP Networking)" },
 216         { PCI_VENDOR_ID_QLOGIC,
 217           PCI_DEVICE_ID_QLOGIC_QLE834X,
 218           PCI_VENDOR_ID_QLOGIC,
 219           0x269,
 220           "8300 Series Dual Port 10GbE Converged Network Adapter "
 221           "(TCP/IP Networking)" },
 222         { PCI_VENDOR_ID_QLOGIC,
 223           PCI_DEVICE_ID_QLOGIC_QLE834X,
 224           PCI_VENDOR_ID_QLOGIC,
 225           0x271,
 226           "8300 Series Dual Port 10GbE Converged Network Adapter "
 227           "(TCP/IP Networking)" },
 228         { PCI_VENDOR_ID_QLOGIC,
 229           PCI_DEVICE_ID_QLOGIC_QLE834X,
 230           0x0, 0x0, "8300 Series 1/10GbE Controller" },
 231         { PCI_VENDOR_ID_QLOGIC,
 232           PCI_DEVICE_ID_QLOGIC_QLE8830,
 233           0x0,
 234           0x0,
 235           "8830 Series 1/10GbE Controller" },
 236         { PCI_VENDOR_ID_QLOGIC,
 237           PCI_DEVICE_ID_QLOGIC_QLE824X,
 238           PCI_VENDOR_ID_QLOGIC,
 239           0x203,
 240           "8200 Series Single Port 10GbE Converged Network Adapter"
 241           "(TCP/IP Networking)" },
 242         { PCI_VENDOR_ID_QLOGIC,
 243           PCI_DEVICE_ID_QLOGIC_QLE824X,
 244           PCI_VENDOR_ID_QLOGIC,
 245           0x207,
 246           "8200 Series Dual Port 10GbE Converged Network Adapter"
 247           "(TCP/IP Networking)" },
 248         { PCI_VENDOR_ID_QLOGIC,
 249           PCI_DEVICE_ID_QLOGIC_QLE824X,
 250           PCI_VENDOR_ID_QLOGIC,
 251           0x20b,
 252           "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter" },
 253         { PCI_VENDOR_ID_QLOGIC,
 254           PCI_DEVICE_ID_QLOGIC_QLE824X,
 255           PCI_VENDOR_ID_QLOGIC,
 256           0x20c,
 257           "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter" },
 258         { PCI_VENDOR_ID_QLOGIC,
 259           PCI_DEVICE_ID_QLOGIC_QLE824X,
 260           PCI_VENDOR_ID_QLOGIC,
 261           0x20f,
 262           "3200 Series Single Port 10Gb Intelligent Ethernet Adapter" },
 263         { PCI_VENDOR_ID_QLOGIC,
 264           PCI_DEVICE_ID_QLOGIC_QLE824X,
 265           0x103c, 0x3733,
 266           "NC523SFP 10Gb 2-port Server Adapter" },
 267         { PCI_VENDOR_ID_QLOGIC,
 268           PCI_DEVICE_ID_QLOGIC_QLE824X,
 269           0x103c, 0x3346,
 270           "CN1000Q Dual Port Converged Network Adapter" },
 271         { PCI_VENDOR_ID_QLOGIC,
 272           PCI_DEVICE_ID_QLOGIC_QLE824X,
 273           PCI_VENDOR_ID_QLOGIC,
 274           0x210,
 275           "QME8242-k 10GbE Dual Port Mezzanine Card" },
 276         { PCI_VENDOR_ID_QLOGIC,
 277           PCI_DEVICE_ID_QLOGIC_QLE824X,
 278           0x0, 0x0, "cLOM8214 1/10GbE Controller" },
 279 };
 280
 281 #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)
 282
 283 static const
 284 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
 285
 286 int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
 287 {
 288         int size = sizeof(struct qlcnic_host_sds_ring) * count;
 289
 290         recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
 291
 292         return recv_ctx->sds_rings == NULL;
 293 }
 294
 295 void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
 296 {
 297         kfree(recv_ctx->sds_rings);
 298         recv_ctx->sds_rings = NULL;
 299 }
 300
 301 int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
 302 {
 303         struct net_device *netdev = adapter->netdev;
 304         struct pci_dev *pdev = adapter->pdev;
 305         u8 mac_addr[ETH_ALEN];
 306         int ret;
 307
 308         ret = qlcnic_get_mac_address(adapter, mac_addr,
 309                                      adapter->ahw->pci_func);
 310         if (ret)
 311                 return ret;
 312
 313         memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
 314         memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
 315
 316         /* set station address */
 317
 318         if (!is_valid_ether_addr(netdev->dev_addr))
 319                 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
 320                                         netdev->dev_addr);
 321
 322         return 0;
 323 }
 324
 325 static void qlcnic_delete_adapter_mac(struct qlcnic_adapter *adapter)
 326 {
 327         struct qlcnic_mac_vlan_list *cur;
 328         struct list_head *head;
 329
 330         list_for_each(head, &adapter->mac_list) {
 331                 cur = list_entry(head, struct qlcnic_mac_vlan_list, list);
 332                 if (ether_addr_equal_unaligned(adapter->mac_addr, cur->mac_addr)) {
 333                         qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
 334                                                   0, QLCNIC_MAC_DEL);
 335                         list_del(&cur->list);
 336                         kfree(cur);
 337                         return;
 338                 }
 339         }
 340 }
 341
 342 static int qlcnic_set_mac(struct net_device *netdev, void *p)
 343 {
 344         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 345         struct sockaddr *addr = p;
 346
 347         if (qlcnic_sriov_vf_check(adapter))
 348                 return -EINVAL;
 349
 350         if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
 351                 return -EOPNOTSUPP;
 352
 353         if (!is_valid_ether_addr(addr->sa_data))
 354                 return -EINVAL;
 355
 356         if (ether_addr_equal_unaligned(adapter->mac_addr, addr->sa_data) &&
 357             ether_addr_equal_unaligned(netdev->dev_addr, addr->sa_data))
 358                 return 0;
 359
 360         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 361                 netif_device_detach(netdev);
 362                 qlcnic_napi_disable(adapter);
 363         }
 364
 365         qlcnic_delete_adapter_mac(adapter);
 366         memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
 367         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 368         qlcnic_set_multi(adapter->netdev);
 369
 370         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 371                 netif_device_attach(netdev);
 372                 qlcnic_napi_enable(adapter);
 373         }
 374         return 0;
 375 }
 376
 377 static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
 378                         struct net_device *netdev,
 379                         const unsigned char *addr, u16 vid)
 380 {
 381         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 382         int err = -EOPNOTSUPP;
 383
 384         if (!adapter->fdb_mac_learn)
 385                 return ndo_dflt_fdb_del(ndm, tb, netdev, addr, vid);
 386
 387         if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
 388             qlcnic_sriov_check(adapter)) {
 389                 if (is_unicast_ether_addr(addr)) {
 390                         err = dev_uc_del(netdev, addr);
 391                         if (!err)
 392                                 err = qlcnic_nic_del_mac(adapter, addr);
 393                 } else if (is_multicast_ether_addr(addr)) {
 394                         err = dev_mc_del(netdev, addr);
 395                 } else {
 396                         err =  -EINVAL;
 397                 }
 398         }
 399         return err;
 400 }
 401
 402 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 403                         struct net_device *netdev,
 404                         const unsigned char *addr, u16 vid, u16 flags)
 405 {
 406         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 407         int err = 0;
 408
 409         if (!adapter->fdb_mac_learn)
 410                 return ndo_dflt_fdb_add(ndm, tb, netdev, addr, vid, flags);
 411
 412         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) &&
 413             !qlcnic_sriov_check(adapter)) {
 414                 pr_info("%s: FDB e-switch is not enabled\n", __func__);
 415                 return -EOPNOTSUPP;
 416         }
 417
 418         if (ether_addr_equal(addr, adapter->mac_addr))
 419                 return err;
 420
 421         if (is_unicast_ether_addr(addr)) {
 422                 if (netdev_uc_count(netdev) < adapter->ahw->max_uc_count)
 423                         err = dev_uc_add_excl(netdev, addr);
 424                 else
 425                         err = -ENOMEM;
 426         } else if (is_multicast_ether_addr(addr)) {
 427                 err = dev_mc_add_excl(netdev, addr);
 428         } else {
 429                 err = -EINVAL;
 430         }
 431
 432         return err;
 433 }
 434
 435 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
 436                         struct net_device *netdev,
 437                         struct net_device *filter_dev, int idx)
 438 {
 439         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 440
 441         if (!adapter->fdb_mac_learn)
 442                 return ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
 443
 444         if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
 445             qlcnic_sriov_check(adapter))
 446                 idx = ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
 447
 448         return idx;
 449 }
 450
 451 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
 452 {
 453         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
 454                 usleep_range(10000, 11000);
 455
 456         if (!adapter->fw_work.work.func)
 457                 return;
 458
 459         cancel_delayed_work_sync(&adapter->fw_work);
 460 }
 461
 462 static int qlcnic_get_phys_port_id(struct net_device *netdev,
 463                                    struct netdev_phys_item_id *ppid)
 464 {
 465         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 466         struct qlcnic_hardware_context *ahw = adapter->ahw;
 467
 468         if (!(adapter->flags & QLCNIC_HAS_PHYS_PORT_ID))
 469                 return -EOPNOTSUPP;
 470
 471         ppid->id_len = sizeof(ahw->phys_port_id);
 472         memcpy(ppid->id, ahw->phys_port_id, ppid->id_len);
 473
 474         return 0;
 475 }
 476
 477 #ifdef CONFIG_QLCNIC_VXLAN
 478 static void qlcnic_add_vxlan_port(struct net_device *netdev,
 479                                   sa_family_t sa_family, __be16 port)
 480 {
 481         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 482         struct qlcnic_hardware_context *ahw = adapter->ahw;
 483
 484         /* Adapter supports only one VXLAN port. Use very first port
 485          * for enabling offload
 486          */
 487         if (!qlcnic_encap_rx_offload(adapter))
 488                 return;
 489         if (!ahw->vxlan_port_count) {
 490                 ahw->vxlan_port_count = 1;
 491                 ahw->vxlan_port = ntohs(port);
 492                 adapter->flags |= QLCNIC_ADD_VXLAN_PORT;
 493                 return;
 494         }
 495         if (ahw->vxlan_port == ntohs(port))
 496                 ahw->vxlan_port_count++;
 497
 498 }
 499
 500 static void qlcnic_del_vxlan_port(struct net_device *netdev,
 501                                   sa_family_t sa_family, __be16 port)
 502 {
 503         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 504         struct qlcnic_hardware_context *ahw = adapter->ahw;
 505
 506         if (!qlcnic_encap_rx_offload(adapter) || !ahw->vxlan_port_count ||
 507             (ahw->vxlan_port != ntohs(port)))
 508                 return;
 509
 510         ahw->vxlan_port_count--;
 511         if (!ahw->vxlan_port_count)
 512                 adapter->flags |= QLCNIC_DEL_VXLAN_PORT;
 513 }
 514
 515 static netdev_features_t qlcnic_features_check(struct sk_buff *skb,
 516                                                struct net_device *dev,
 517                                                netdev_features_t features)
 518 {
 519         features = vlan_features_check(skb, features);
 520         return vxlan_features_check(skb, features);
 521 }
 522 #endif
 523
 524 static const struct net_device_ops qlcnic_netdev_ops = {
 525         .ndo_open          = qlcnic_open,
 526         .ndo_stop          = qlcnic_close,
 527         .ndo_start_xmit    = qlcnic_xmit_frame,
 528         .ndo_get_stats     = qlcnic_get_stats,
 529         .ndo_validate_addr = eth_validate_addr,
 530         .ndo_set_rx_mode   = qlcnic_set_multi,
 531         .ndo_set_mac_address    = qlcnic_set_mac,
 532         .ndo_change_mtu    = qlcnic_change_mtu,
 533         .ndo_fix_features  = qlcnic_fix_features,
 534         .ndo_set_features  = qlcnic_set_features,
 535         .ndo_tx_timeout    = qlcnic_tx_timeout,
 536         .ndo_vlan_rx_add_vid    = qlcnic_vlan_rx_add,
 537         .ndo_vlan_rx_kill_vid   = qlcnic_vlan_rx_del,
 538         .ndo_fdb_add            = qlcnic_fdb_add,
 539         .ndo_fdb_del            = qlcnic_fdb_del,
 540         .ndo_fdb_dump           = qlcnic_fdb_dump,
 541         .ndo_get_phys_port_id   = qlcnic_get_phys_port_id,
 542 #ifdef CONFIG_QLCNIC_VXLAN
 543         .ndo_add_vxlan_port     = qlcnic_add_vxlan_port,
 544         .ndo_del_vxlan_port     = qlcnic_del_vxlan_port,
 545         .ndo_features_check     = qlcnic_features_check,
 546 #endif
 547 #ifdef CONFIG_NET_POLL_CONTROLLER
 548         .ndo_poll_controller = qlcnic_poll_controller,
 549 #endif
 550 #ifdef CONFIG_QLCNIC_SRIOV
 551         .ndo_set_vf_mac         = qlcnic_sriov_set_vf_mac,
 552         .ndo_set_vf_rate        = qlcnic_sriov_set_vf_tx_rate,
 553         .ndo_get_vf_config      = qlcnic_sriov_get_vf_config,
 554         .ndo_set_vf_vlan        = qlcnic_sriov_set_vf_vlan,
 555         .ndo_set_vf_spoofchk    = qlcnic_sriov_set_vf_spoofchk,
 556 #endif
 557 };
 558
 559 static const struct net_device_ops qlcnic_netdev_failed_ops = {
 560         .ndo_open          = qlcnic_open,
 561 };
 562
 563 static struct qlcnic_nic_template qlcnic_ops = {
 564         .config_bridged_mode    = qlcnic_config_bridged_mode,
 565         .config_led             = qlcnic_82xx_config_led,
 566         .start_firmware         = qlcnic_82xx_start_firmware,
 567         .request_reset          = qlcnic_82xx_dev_request_reset,
 568         .cancel_idc_work        = qlcnic_82xx_cancel_idc_work,
 569         .napi_add               = qlcnic_82xx_napi_add,
 570         .napi_del               = qlcnic_82xx_napi_del,
 571         .config_ipaddr          = qlcnic_82xx_config_ipaddr,
 572         .shutdown               = qlcnic_82xx_shutdown,
 573         .resume                 = qlcnic_82xx_resume,
 574         .clear_legacy_intr      = qlcnic_82xx_clear_legacy_intr,
 575 };
 576
 577 struct qlcnic_nic_template qlcnic_vf_ops = {
 578         .config_bridged_mode    = qlcnicvf_config_bridged_mode,
 579         .config_led             = qlcnicvf_config_led,
 580         .start_firmware         = qlcnicvf_start_firmware
 581 };
 582
 583 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
 584         .read_crb                       = qlcnic_82xx_read_crb,
 585         .write_crb                      = qlcnic_82xx_write_crb,
 586         .read_reg                       = qlcnic_82xx_hw_read_wx_2M,
 587         .write_reg                      = qlcnic_82xx_hw_write_wx_2M,
 588         .get_mac_address                = qlcnic_82xx_get_mac_address,
 589         .setup_intr                     = qlcnic_82xx_setup_intr,
 590         .alloc_mbx_args                 = qlcnic_82xx_alloc_mbx_args,
 591         .mbx_cmd                        = qlcnic_82xx_issue_cmd,
 592         .get_func_no                    = qlcnic_82xx_get_func_no,
 593         .api_lock                       = qlcnic_82xx_api_lock,
 594         .api_unlock                     = qlcnic_82xx_api_unlock,
 595         .add_sysfs                      = qlcnic_82xx_add_sysfs,
 596         .remove_sysfs                   = qlcnic_82xx_remove_sysfs,
 597         .process_lb_rcv_ring_diag       = qlcnic_82xx_process_rcv_ring_diag,
 598         .create_rx_ctx                  = qlcnic_82xx_fw_cmd_create_rx_ctx,
 599         .create_tx_ctx                  = qlcnic_82xx_fw_cmd_create_tx_ctx,
 600         .del_rx_ctx                     = qlcnic_82xx_fw_cmd_del_rx_ctx,
 601         .del_tx_ctx                     = qlcnic_82xx_fw_cmd_del_tx_ctx,
 602         .setup_link_event               = qlcnic_82xx_linkevent_request,
 603         .get_nic_info                   = qlcnic_82xx_get_nic_info,
 604         .get_pci_info                   = qlcnic_82xx_get_pci_info,
 605         .set_nic_info                   = qlcnic_82xx_set_nic_info,
 606         .change_macvlan                 = qlcnic_82xx_sre_macaddr_change,
 607         .napi_enable                    = qlcnic_82xx_napi_enable,
 608         .napi_disable                   = qlcnic_82xx_napi_disable,
 609         .config_intr_coal               = qlcnic_82xx_config_intr_coalesce,
 610         .config_rss                     = qlcnic_82xx_config_rss,
 611         .config_hw_lro                  = qlcnic_82xx_config_hw_lro,
 612         .config_loopback                = qlcnic_82xx_set_lb_mode,
 613         .clear_loopback                 = qlcnic_82xx_clear_lb_mode,
 614         .config_promisc_mode            = qlcnic_82xx_nic_set_promisc,
 615         .change_l2_filter               = qlcnic_82xx_change_filter,
 616         .get_board_info                 = qlcnic_82xx_get_board_info,
 617         .set_mac_filter_count           = qlcnic_82xx_set_mac_filter_count,
 618         .free_mac_list                  = qlcnic_82xx_free_mac_list,
 619         .read_phys_port_id              = qlcnic_82xx_read_phys_port_id,
 620         .io_error_detected              = qlcnic_82xx_io_error_detected,
 621         .io_slot_reset                  = qlcnic_82xx_io_slot_reset,
 622         .io_resume                      = qlcnic_82xx_io_resume,
 623         .get_beacon_state               = qlcnic_82xx_get_beacon_state,
 624         .enable_sds_intr                = qlcnic_82xx_enable_sds_intr,
 625         .disable_sds_intr               = qlcnic_82xx_disable_sds_intr,
 626         .enable_tx_intr                 = qlcnic_82xx_enable_tx_intr,
 627         .disable_tx_intr                = qlcnic_82xx_disable_tx_intr,
 628         .get_saved_state                = qlcnic_82xx_get_saved_state,
 629         .set_saved_state                = qlcnic_82xx_set_saved_state,
 630         .cache_tmpl_hdr_values          = qlcnic_82xx_cache_tmpl_hdr_values,
 631         .get_cap_size                   = qlcnic_82xx_get_cap_size,
 632         .set_sys_info                   = qlcnic_82xx_set_sys_info,
 633         .store_cap_mask                 = qlcnic_82xx_store_cap_mask,
 634 };
 635
 636 static int qlcnic_check_multi_tx_capability(struct qlcnic_adapter *adapter)
 637 {
 638         struct qlcnic_hardware_context *ahw = adapter->ahw;
 639
 640         if (qlcnic_82xx_check(adapter) &&
 641             (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_MULTI_TX)) {
 642                 test_and_set_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
 643                 return 0;
 644         } else {
 645                 return 1;
 646         }
 647 }
 648
 649 static int qlcnic_max_rings(struct qlcnic_adapter *adapter, u8 ring_cnt,
 650                             int queue_type)
 651 {
 652         int num_rings, max_rings = QLCNIC_MAX_SDS_RINGS;
 653
 654         if (queue_type == QLCNIC_RX_QUEUE)
 655                 max_rings = adapter->max_sds_rings;
 656         else if (queue_type == QLCNIC_TX_QUEUE)
 657                 max_rings = adapter->max_tx_rings;
 658
 659         num_rings = rounddown_pow_of_two(min_t(int, num_online_cpus(),
 660                                               max_rings));
 661
 662         if (ring_cnt > num_rings)
 663                 return num_rings;
 664         else
 665                 return ring_cnt;
 666 }
 667
 668 void qlcnic_set_tx_ring_count(struct qlcnic_adapter *adapter, u8 tx_cnt)
 669 {
 670         /* 83xx adapter does not have max_tx_rings intialized in probe */
 671         if (adapter->max_tx_rings)
 672                 adapter->drv_tx_rings = qlcnic_max_rings(adapter, tx_cnt,
 673                                                          QLCNIC_TX_QUEUE);
 674         else
 675                 adapter->drv_tx_rings = tx_cnt;
 676 }
 677
 678 void qlcnic_set_sds_ring_count(struct qlcnic_adapter *adapter, u8 rx_cnt)
 679 {
 680         /* 83xx adapter does not have max_sds_rings intialized in probe */
 681         if (adapter->max_sds_rings)
 682                 adapter->drv_sds_rings = qlcnic_max_rings(adapter, rx_cnt,
 683                                                           QLCNIC_RX_QUEUE);
 684         else
 685                 adapter->drv_sds_rings = rx_cnt;
 686 }
 687
 688 int qlcnic_setup_tss_rss_intr(struct qlcnic_adapter *adapter)
 689 {
 690         struct pci_dev *pdev = adapter->pdev;
 691         int num_msix = 0, err = 0, vector;
 692
 693         adapter->flags &= ~QLCNIC_TSS_RSS;
 694
 695         if (adapter->drv_tss_rings > 0)
 696                 num_msix += adapter->drv_tss_rings;
 697         else
 698                 num_msix += adapter->drv_tx_rings;
 699
 700         if (adapter->drv_rss_rings > 0)
 701                 num_msix += adapter->drv_rss_rings;
 702         else
 703                 num_msix += adapter->drv_sds_rings;
 704
 705         if (qlcnic_83xx_check(adapter))
 706                 num_msix += 1;
 707
 708         if (!adapter->msix_entries) {
 709                 adapter->msix_entries = kcalloc(num_msix,
 710                                                 sizeof(struct msix_entry),
 711                                                 GFP_KERNEL);
 712                 if (!adapter->msix_entries)
 713                         return -ENOMEM;
 714         }
 715
 716         for (vector = 0; vector < num_msix; vector++)
 717                 adapter->msix_entries[vector].entry = vector;
 718
 719 restore:
 720         err = pci_enable_msix_exact(pdev, adapter->msix_entries, num_msix);
 721         if (err == -ENOSPC) {
 722                 if (!adapter->drv_tss_rings && !adapter->drv_rss_rings)
 723                         return err;
 724
 725                 netdev_info(adapter->netdev,
 726                             "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
 727                             num_msix, err);
 728
 729                 num_msix = adapter->drv_tx_rings + adapter->drv_sds_rings;
 730
 731                 /* Set rings to 0 so we can restore original TSS/RSS count */
 732                 adapter->drv_tss_rings = 0;
 733                 adapter->drv_rss_rings = 0;
 734
 735                 if (qlcnic_83xx_check(adapter))
 736                         num_msix += 1;
 737
 738                 netdev_info(adapter->netdev,
 739                             "Restoring %d Tx, %d SDS rings for total %d vectors.\n",
 740                             adapter->drv_tx_rings, adapter->drv_sds_rings,
 741                             num_msix);
 742
 743                 goto restore;
 744         } else if (err < 0) {
 745                 return err;
 746         }
 747
 748         adapter->ahw->num_msix = num_msix;
 749         if (adapter->drv_tss_rings > 0)
 750                 adapter->drv_tx_rings = adapter->drv_tss_rings;
 751
 752         if (adapter->drv_rss_rings > 0)
 753                 adapter->drv_sds_rings = adapter->drv_rss_rings;
 754
 755         return 0;
 756 }
 757
 758 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 759 {
 760         struct pci_dev *pdev = adapter->pdev;
 761         int err, vector;
 762
 763         if (!adapter->msix_entries) {
 764                 adapter->msix_entries = kcalloc(num_msix,
 765                                                 sizeof(struct msix_entry),
 766                                                 GFP_KERNEL);
 767                 if (!adapter->msix_entries)
 768                         return -ENOMEM;
 769         }
 770
 771         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 772
 773         if (adapter->ahw->msix_supported) {
 774 enable_msix:
 775                 for (vector = 0; vector < num_msix; vector++)
 776                         adapter->msix_entries[vector].entry = vector;
 777
 778                 err = pci_enable_msix_range(pdev,
 779                                             adapter->msix_entries, 1, num_msix);
 780
 781                 if (err == num_msix) {
 782                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 783                         adapter->ahw->num_msix = num_msix;
 784                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 785                         return 0;
 786                 } else if (err > 0) {
 787                         pci_disable_msix(pdev);
 788
 789                         dev_info(&pdev->dev,
 790                                  "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
 791                                  num_msix, err);
 792
 793                         if (qlcnic_82xx_check(adapter)) {
 794                                 num_msix = rounddown_pow_of_two(err);
 795                                 if (err < QLCNIC_82XX_MINIMUM_VECTOR)
 796                                         return -ENOSPC;
 797                         } else {
 798                                 num_msix = rounddown_pow_of_two(err - 1);
 799                                 num_msix += 1;
 800                                 if (err < QLCNIC_83XX_MINIMUM_VECTOR)
 801                                         return -ENOSPC;
 802                         }
 803
 804                         if (qlcnic_82xx_check(adapter) &&
 805                             !qlcnic_check_multi_tx(adapter)) {
 806                                 adapter->drv_sds_rings = num_msix;
 807                                 adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
 808                         } else {
 809                                 /* Distribute vectors equally */
 810                                 adapter->drv_tx_rings = num_msix / 2;
 811                                 adapter->drv_sds_rings = adapter->drv_tx_rings;
 812                         }
 813
 814                         if (num_msix) {
 815                                 dev_info(&pdev->dev,
 816                                          "Trying to allocate %d MSI-X interrupt vectors\n",
 817                                          num_msix);
 818                                 goto enable_msix;
 819                         }
 820                 } else {
 821                         dev_info(&pdev->dev,
 822                                  "Unable to allocate %d MSI-X vectors, err=%d\n",
 823                                  num_msix, err);
 824                         return err;
 825                 }
 826         }
 827
 828         return -EIO;
 829 }
 830
 831 static int qlcnic_82xx_calculate_msix_vector(struct qlcnic_adapter *adapter)
 832 {
 833         int num_msix;
 834
 835         num_msix = adapter->drv_sds_rings;
 836
 837         if (qlcnic_check_multi_tx(adapter))
 838                 num_msix += adapter->drv_tx_rings;
 839         else
 840                 num_msix += QLCNIC_SINGLE_RING;
 841
 842         return num_msix;
 843 }
 844
 845 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
 846 {
 847         int err = 0;
 848         u32 offset, mask_reg;
 849         const struct qlcnic_legacy_intr_set *legacy_intrp;
 850         struct qlcnic_hardware_context *ahw = adapter->ahw;
 851         struct pci_dev *pdev = adapter->pdev;
 852
 853         if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
 854                 adapter->flags |= QLCNIC_MSI_ENABLED;
 855                 offset = msi_tgt_status[adapter->ahw->pci_func];
 856                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
 857                                                             offset);
 858                 dev_info(&pdev->dev, "using msi interrupts\n");
 859                 adapter->msix_entries[0].vector = pdev->irq;
 860                 return err;
 861         }
 862
 863         if (qlcnic_use_msi || qlcnic_use_msi_x)
 864                 return -EOPNOTSUPP;
 865
 866         legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
 867         adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
 868         offset = legacy_intrp->tgt_status_reg;
 869         adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
 870         mask_reg = legacy_intrp->tgt_mask_reg;
 871         adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
 872         adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
 873         adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
 874         dev_info(&pdev->dev, "using legacy interrupts\n");
 875         adapter->msix_entries[0].vector = pdev->irq;
 876         return err;
 877 }
 878
 879 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter)
 880 {
 881         int num_msix, err = 0;
 882
 883         if (adapter->flags & QLCNIC_TSS_RSS) {
 884                 err = qlcnic_setup_tss_rss_intr(adapter);
 885                 if (err < 0)
 886                         return err;
 887                 num_msix = adapter->ahw->num_msix;
 888         } else {
 889                 num_msix = qlcnic_82xx_calculate_msix_vector(adapter);
 890
 891                 err = qlcnic_enable_msix(adapter, num_msix);
 892                 if (err == -ENOMEM)
 893                         return err;
 894
 895                 if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
 896                         qlcnic_disable_multi_tx(adapter);
 897                         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
 898
 899                         err = qlcnic_enable_msi_legacy(adapter);
 900                         if (err)
 901                                 return err;
 902                 }
 903         }
 904
 905         return 0;
 906 }
 907
 908 int qlcnic_82xx_mq_intrpt(struct qlcnic_adapter *adapter, int op_type)
 909 {
 910         struct qlcnic_hardware_context *ahw = adapter->ahw;
 911         int err, i;
 912
 913         if (qlcnic_check_multi_tx(adapter) &&
 914             !ahw->diag_test &&
 915             (adapter->flags & QLCNIC_MSIX_ENABLED)) {
 916                 ahw->intr_tbl = vzalloc(ahw->num_msix *
 917                                         sizeof(struct qlcnic_intrpt_config));
 918                 if (!ahw->intr_tbl)
 919                         return -ENOMEM;
 920
 921                 for (i = 0; i < ahw->num_msix; i++) {
 922                         ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
 923                         ahw->intr_tbl[i].id = i;
 924                         ahw->intr_tbl[i].src = 0;
 925                 }
 926
 927                 err = qlcnic_82xx_config_intrpt(adapter, 1);
 928                 if (err)
 929                         dev_err(&adapter->pdev->dev,
 930                                 "Failed to configure Interrupt for %d vector\n",
 931                                 ahw->num_msix);
 932                 return err;
 933         }
 934
 935         return 0;
 936 }
 937
 938 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 939 {
 940         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 941                 pci_disable_msix(adapter->pdev);
 942         if (adapter->flags & QLCNIC_MSI_ENABLED)
 943                 pci_disable_msi(adapter->pdev);
 944
 945         kfree(adapter->msix_entries);
 946         adapter->msix_entries = NULL;
 947
 948         if (adapter->ahw->intr_tbl) {
 949                 vfree(adapter->ahw->intr_tbl);
 950                 adapter->ahw->intr_tbl = NULL;
 951         }
 952 }
 953
 954 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
 955 {
 956         if (ahw->pci_base0 != NULL)
 957                 iounmap(ahw->pci_base0);
 958 }
 959
 960 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
 961 {
 962         struct qlcnic_hardware_context *ahw = adapter->ahw;
 963         struct qlcnic_pci_info *pci_info;
 964         int ret;
 965
 966         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 967                 switch (ahw->port_type) {
 968                 case QLCNIC_GBE:
 969                         ahw->total_nic_func = QLCNIC_NIU_MAX_GBE_PORTS;
 970                         break;
 971                 case QLCNIC_XGBE:
 972                         ahw->total_nic_func = QLCNIC_NIU_MAX_XG_PORTS;
 973                         break;
 974                 }
 975                 return 0;
 976         }
 977
 978         if (ahw->op_mode == QLCNIC_MGMT_FUNC)
 979                 return 0;
 980
 981         pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
 982         if (!pci_info)
 983                 return -ENOMEM;
 984
 985         ret = qlcnic_get_pci_info(adapter, pci_info);
 986         kfree(pci_info);
 987         return ret;
 988 }
 989
 990 static bool qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter *adapter)
 991 {
 992         bool ret = false;
 993
 994         if (qlcnic_84xx_check(adapter)) {
 995                 ret = true;
 996         } else if (qlcnic_83xx_check(adapter)) {
 997                 if (adapter->ahw->extra_capability[0] &
 998                     QLCNIC_FW_CAPABILITY_2_PER_PORT_ESWITCH_CFG)
 999                         ret = true;
1000                 else
1001                         ret = false;
1002         }
1003
1004         return ret;
1005 }
1006
1007 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
1008 {
1009         struct qlcnic_hardware_context *ahw = adapter->ahw;
1010         struct qlcnic_pci_info *pci_info;
1011         int i, id = 0, ret = 0, j = 0;
1012         u16 act_pci_func;
1013         u8 pfn;
1014
1015         pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
1016         if (!pci_info)
1017                 return -ENOMEM;
1018
1019         ret = qlcnic_get_pci_info(adapter, pci_info);
1020         if (ret)
1021                 goto err_pci_info;
1022
1023         act_pci_func = ahw->total_nic_func;
1024
1025         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
1026                                  act_pci_func, GFP_KERNEL);
1027         if (!adapter->npars) {
1028                 ret = -ENOMEM;
1029                 goto err_pci_info;
1030         }
1031
1032         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
1033                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
1034         if (!adapter->eswitch) {
1035                 ret = -ENOMEM;
1036                 goto err_npars;
1037         }
1038
1039         for (i = 0; i < ahw->max_vnic_func; i++) {
1040                 pfn = pci_info[i].id;
1041
1042                 if (pfn >= ahw->max_vnic_func) {
1043                         ret = -EINVAL;
1044                         dev_err(&adapter->pdev->dev, "%s: Invalid function 0x%x, max 0x%x\n",
1045                                 __func__, pfn, ahw->max_vnic_func);
1046                         goto err_eswitch;
1047                 }
1048
1049                 if (!pci_info[i].active ||
1050                     (pci_info[i].type != QLCNIC_TYPE_NIC))
1051                         continue;
1052
1053                 if (qlcnic_port_eswitch_cfg_capability(adapter)) {
1054                         if (!qlcnic_83xx_set_port_eswitch_status(adapter, pfn,
1055                                                                  &id))
1056                                 adapter->npars[j].eswitch_status = true;
1057                         else
1058                                 continue;
1059                 } else {
1060                         adapter->npars[j].eswitch_status = true;
1061                 }
1062
1063                 adapter->npars[j].pci_func = pfn;
1064                 adapter->npars[j].active = (u8)pci_info[i].active;
1065                 adapter->npars[j].type = (u8)pci_info[i].type;
1066                 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
1067                 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
1068                 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
1069
1070                 memcpy(&adapter->npars[j].mac, &pci_info[i].mac, ETH_ALEN);
1071                 j++;
1072         }
1073
1074         /* Update eSwitch status for adapters without per port eSwitch
1075          * configuration capability
1076          */
1077         if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
1078                 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
1079                         adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
1080         }
1081
1082         kfree(pci_info);
1083         return 0;
1084
1085 err_eswitch:
1086         kfree(adapter->eswitch);
1087         adapter->eswitch = NULL;
1088 err_npars:
1089         kfree(adapter->npars);
1090         adapter->npars = NULL;
1091 err_pci_info:
1092         kfree(pci_info);
1093
1094         return ret;
1095 }
1096
1097 static int
1098 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
1099 {
1100         u8 id;
1101         int ret;
1102         u32 data = QLCNIC_MGMT_FUNC;
1103         struct qlcnic_hardware_context *ahw = adapter->ahw;
1104
1105         ret = qlcnic_api_lock(adapter);
1106         if (ret)
1107                 goto err_lock;
1108
1109         id = ahw->pci_func;
1110         data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1111         data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
1112                QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
1113         QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
1114         qlcnic_api_unlock(adapter);
1115 err_lock:
1116         return ret;
1117 }
1118
1119 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
1120                             const struct pci_device_id *ent)
1121 {
1122         u32 op_mode, priv_level;
1123
1124         /* Determine FW API version */
1125         adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
1126                                                            QLCNIC_FW_API);
1127
1128         /* Find PCI function number */
1129         qlcnic_get_func_no(adapter);
1130
1131         /* Determine function privilege level */
1132         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1133         if (op_mode == QLC_DEV_DRV_DEFAULT)
1134                 priv_level = QLCNIC_MGMT_FUNC;
1135         else
1136                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1137
1138         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
1139                 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
1140                 dev_info(&adapter->pdev->dev,
1141                         "HAL Version: %d Non Privileged function\n",
1142                          adapter->ahw->fw_hal_version);
1143                 adapter->nic_ops = &qlcnic_vf_ops;
1144         } else
1145                 adapter->nic_ops = &qlcnic_ops;
1146 }
1147
1148 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
1149 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
1150 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
1151 {
1152         switch (dev_id) {
1153         case PCI_DEVICE_ID_QLOGIC_QLE824X:
1154                 *bar = QLCNIC_82XX_BAR0_LENGTH;
1155                 break;
1156         case PCI_DEVICE_ID_QLOGIC_QLE834X:
1157         case PCI_DEVICE_ID_QLOGIC_QLE8830:
1158         case PCI_DEVICE_ID_QLOGIC_QLE844X:
1159         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
1160         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
1161         case PCI_DEVICE_ID_QLOGIC_VF_QLE8C30:
1162                 *bar = QLCNIC_83XX_BAR0_LENGTH;
1163                 break;
1164         default:
1165                 *bar = 0;
1166         }
1167 }
1168
1169 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
1170                                 struct qlcnic_hardware_context *ahw)
1171 {
1172         u32 offset;
1173         void __iomem *mem_ptr0 = NULL;
1174         unsigned long mem_len, pci_len0 = 0, bar0_len;
1175
1176         /* remap phys address */
1177         mem_len = pci_resource_len(pdev, 0);
1178
1179         qlcnic_get_bar_length(pdev->device, &bar0_len);
1180         if (mem_len >= bar0_len) {
1181
1182                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
1183                 if (mem_ptr0 == NULL) {
1184                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
1185                         return -EIO;
1186                 }
1187                 pci_len0 = mem_len;
1188         } else {
1189                 return -EIO;
1190         }
1191
1192         dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
1193
1194         ahw->pci_base0 = mem_ptr0;
1195         ahw->pci_len0 = pci_len0;
1196         offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
1197         qlcnic_get_ioaddr(ahw, offset);
1198
1199         return 0;
1200 }
1201
1202 static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
1203                                          int index)
1204 {
1205         struct pci_dev *pdev = adapter->pdev;
1206         unsigned short subsystem_vendor;
1207         bool ret = true;
1208
1209         subsystem_vendor = pdev->subsystem_vendor;
1210
1211         if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
1212             pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1213                 if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
1214                     qlcnic_boards[index].sub_device == pdev->subsystem_device)
1215                         ret = true;
1216                 else
1217                         ret = false;
1218         }
1219
1220         return ret;
1221 }
1222
1223 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
1224 {
1225         struct pci_dev *pdev = adapter->pdev;
1226         int i, found = 0;
1227
1228         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1229                 if (qlcnic_boards[i].vendor == pdev->vendor &&
1230                     qlcnic_boards[i].device == pdev->device &&
1231                     qlcnic_validate_subsystem_id(adapter, i)) {
1232                         found = 1;
1233                         break;
1234                 }
1235         }
1236
1237         if (!found)
1238                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
1239         else
1240                 sprintf(name, "%pM: %s" , adapter->mac_addr,
1241                         qlcnic_boards[i].short_name);
1242 }
1243
1244 static void
1245 qlcnic_check_options(struct qlcnic_adapter *adapter)
1246 {
1247         int err;
1248         u32 fw_major, fw_minor, fw_build, prev_fw_version;
1249         struct pci_dev *pdev = adapter->pdev;
1250         struct qlcnic_hardware_context *ahw = adapter->ahw;
1251         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
1252
1253         prev_fw_version = adapter->fw_version;
1254
1255         fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
1256         fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
1257         fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
1258
1259         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
1260
1261         err = qlcnic_get_board_info(adapter);
1262         if (err) {
1263                 dev_err(&pdev->dev, "Error getting board config info.\n");
1264                 return;
1265         }
1266         if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
1267                 if (fw_dump->tmpl_hdr == NULL ||
1268                                 adapter->fw_version > prev_fw_version) {
1269                         vfree(fw_dump->tmpl_hdr);
1270                         if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1271                                 dev_info(&pdev->dev,
1272                                         "Supports FW dump capability\n");
1273                 }
1274         }
1275
1276         dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
1277                  QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
1278
1279         if (adapter->ahw->port_type == QLCNIC_XGBE) {
1280                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1281                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
1282                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
1283                 } else {
1284                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
1285                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
1286                 }
1287
1288                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1289                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1290
1291         } else if (adapter->ahw->port_type == QLCNIC_GBE) {
1292                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
1293                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1294                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1295                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
1296         }
1297
1298         adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
1299
1300         adapter->num_txd = MAX_CMD_DESCRIPTORS;
1301
1302         adapter->max_rds_rings = MAX_RDS_RINGS;
1303 }
1304
1305 static int
1306 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
1307 {
1308         struct qlcnic_info nic_info;
1309         int err = 0;
1310
1311         memset(&nic_info, 0, sizeof(struct qlcnic_info));
1312         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
1313         if (err)
1314                 return err;
1315
1316         adapter->ahw->physical_port = (u8)nic_info.phys_port;
1317         adapter->ahw->switch_mode = nic_info.switch_mode;
1318         adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
1319         adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
1320         adapter->ahw->capabilities = nic_info.capabilities;
1321
1322         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1323                 u32 temp;
1324                 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
1325                 if (err == -EIO)
1326                         return err;
1327                 adapter->ahw->extra_capability[0] = temp;
1328         } else {
1329                 adapter->ahw->extra_capability[0] = 0;
1330         }
1331
1332         adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1333         adapter->ahw->max_mtu = nic_info.max_mtu;
1334
1335         if (adapter->ahw->capabilities & BIT_6) {
1336                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1337                 adapter->ahw->nic_mode = QLCNIC_VNIC_MODE;
1338                 adapter->max_tx_rings = QLCNIC_MAX_HW_VNIC_TX_RINGS;
1339                 adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
1340
1341                 dev_info(&adapter->pdev->dev, "vNIC mode enabled.\n");
1342         } else {
1343                 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1344                 adapter->max_tx_rings = QLCNIC_MAX_HW_TX_RINGS;
1345                 adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
1346                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1347         }
1348
1349         return err;
1350 }
1351
1352 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1353                             struct qlcnic_esw_func_cfg *esw_cfg)
1354 {
1355         if (esw_cfg->discard_tagged)
1356                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1357         else
1358                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1359
1360         if (esw_cfg->vlan_id) {
1361                 adapter->rx_pvid = esw_cfg->vlan_id;
1362                 adapter->tx_pvid = esw_cfg->vlan_id;
1363         } else {
1364                 adapter->rx_pvid = 0;
1365                 adapter->tx_pvid = 0;
1366         }
1367 }
1368
1369 static int
1370 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1371 {
1372         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1373         int err;
1374
1375         if (qlcnic_sriov_vf_check(adapter)) {
1376                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1377                 if (err) {
1378                         netdev_err(netdev,
1379                                    "Cannot add VLAN filter for VLAN id %d, err=%d",
1380                                    vid, err);
1381                         return err;
1382                 }
1383         }
1384
1385         set_bit(vid, adapter->vlans);
1386         return 0;
1387 }
1388
1389 static int
1390 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1391 {
1392         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1393         int err;
1394
1395         if (qlcnic_sriov_vf_check(adapter)) {
1396                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1397                 if (err) {
1398                         netdev_err(netdev,
1399                                    "Cannot delete VLAN filter for VLAN id %d, err=%d",
1400                                    vid, err);
1401                         return err;
1402                 }
1403         }
1404
1405         qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1406         clear_bit(vid, adapter->vlans);
1407         return 0;
1408 }
1409
1410 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1411                                       struct qlcnic_esw_func_cfg *esw_cfg)
1412 {
1413         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1414                                 QLCNIC_PROMISC_DISABLED);
1415
1416         if (esw_cfg->mac_anti_spoof)
1417                 adapter->flags |= QLCNIC_MACSPOOF;
1418
1419         if (!esw_cfg->mac_override)
1420                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1421
1422         if (!esw_cfg->promisc_mode)
1423                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1424 }
1425
1426 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1427 {
1428         struct qlcnic_esw_func_cfg esw_cfg;
1429
1430         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1431                 return 0;
1432
1433         esw_cfg.pci_func = adapter->ahw->pci_func;
1434         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1435                         return -EIO;
1436         qlcnic_set_vlan_config(adapter, &esw_cfg);
1437         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1438         qlcnic_set_netdev_features(adapter, &esw_cfg);
1439
1440         return 0;
1441 }
1442
1443 void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1444                                 struct qlcnic_esw_func_cfg *esw_cfg)
1445 {
1446         struct net_device *netdev = adapter->netdev;
1447
1448         if (qlcnic_83xx_check(adapter))
1449                 return;
1450
1451         adapter->offload_flags = esw_cfg->offload_flags;
1452         adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1453         netdev_update_features(netdev);
1454         adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1455 }
1456
1457 static int
1458 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1459 {
1460         u32 op_mode, priv_level;
1461         int err = 0;
1462
1463         err = qlcnic_initialize_nic(adapter);
1464         if (err)
1465                 return err;
1466
1467         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1468                 return 0;
1469
1470         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1471         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1472
1473         if (op_mode == QLC_DEV_DRV_DEFAULT)
1474                 priv_level = QLCNIC_MGMT_FUNC;
1475         else
1476                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1477
1478         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1479                 if (priv_level == QLCNIC_MGMT_FUNC) {
1480                         adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1481                         err = qlcnic_init_pci_info(adapter);
1482                         if (err)
1483                                 return err;
1484                         /* Set privilege level for other functions */
1485                         qlcnic_set_function_modes(adapter);
1486                         dev_info(&adapter->pdev->dev,
1487                                 "HAL Version: %d, Management function\n",
1488                                  adapter->ahw->fw_hal_version);
1489                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1490                         adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1491                         dev_info(&adapter->pdev->dev,
1492                                 "HAL Version: %d, Privileged function\n",
1493                                  adapter->ahw->fw_hal_version);
1494                 }
1495         } else {
1496                 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1497         }
1498
1499         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1500
1501         return err;
1502 }
1503
1504 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1505 {
1506         struct qlcnic_esw_func_cfg esw_cfg;
1507         struct qlcnic_npar_info *npar;
1508         u8 i;
1509
1510         if (adapter->need_fw_reset)
1511                 return 0;
1512
1513         for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1514                 if (!adapter->npars[i].eswitch_status)
1515                         continue;
1516
1517                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1518                 esw_cfg.pci_func = adapter->npars[i].pci_func;
1519                 esw_cfg.mac_override = BIT_0;
1520                 esw_cfg.promisc_mode = BIT_0;
1521                 if (qlcnic_82xx_check(adapter)) {
1522                         esw_cfg.offload_flags = BIT_0;
1523                         if (QLCNIC_IS_TSO_CAPABLE(adapter))
1524                                 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1525                 }
1526                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1527                         return -EIO;
1528                 npar = &adapter->npars[i];
1529                 npar->pvid = esw_cfg.vlan_id;
1530                 npar->mac_override = esw_cfg.mac_override;
1531                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1532                 npar->discard_tagged = esw_cfg.discard_tagged;
1533                 npar->promisc_mode = esw_cfg.promisc_mode;
1534                 npar->offload_flags = esw_cfg.offload_flags;
1535         }
1536
1537         return 0;
1538 }
1539
1540
1541 static int
1542 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1543                         struct qlcnic_npar_info *npar, int pci_func)
1544 {
1545         struct qlcnic_esw_func_cfg esw_cfg;
1546         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1547         esw_cfg.pci_func = pci_func;
1548         esw_cfg.vlan_id = npar->pvid;
1549         esw_cfg.mac_override = npar->mac_override;
1550         esw_cfg.discard_tagged = npar->discard_tagged;
1551         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1552         esw_cfg.offload_flags = npar->offload_flags;
1553         esw_cfg.promisc_mode = npar->promisc_mode;
1554         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1555                 return -EIO;
1556
1557         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1558         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1559                 return -EIO;
1560
1561         return 0;
1562 }
1563
1564 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1565 {
1566         int i, err;
1567         struct qlcnic_npar_info *npar;
1568         struct qlcnic_info nic_info;
1569         u8 pci_func;
1570
1571         if (qlcnic_82xx_check(adapter))
1572                 if (!adapter->need_fw_reset)
1573                         return 0;
1574
1575         /* Set the NPAR config data after FW reset */
1576         for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1577                 npar = &adapter->npars[i];
1578                 pci_func = npar->pci_func;
1579                 if (!adapter->npars[i].eswitch_status)
1580                         continue;
1581
1582                 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1583                 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1584                 if (err)
1585                         return err;
1586                 nic_info.min_tx_bw = npar->min_bw;
1587                 nic_info.max_tx_bw = npar->max_bw;
1588                 err = qlcnic_set_nic_info(adapter, &nic_info);
1589                 if (err)
1590                         return err;
1591
1592                 if (npar->enable_pm) {
1593                         err = qlcnic_config_port_mirroring(adapter,
1594                                                            npar->dest_npar, 1,
1595                                                            pci_func);
1596                         if (err)
1597                                 return err;
1598                 }
1599                 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1600                 if (err)
1601                         return err;
1602         }
1603         return 0;
1604 }
1605
1606 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1607 {
1608         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1609         u32 npar_state;
1610
1611         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1612                 return 0;
1613
1614         npar_state = QLC_SHARED_REG_RD32(adapter,
1615                                          QLCNIC_CRB_DEV_NPAR_STATE);
1616         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1617                 msleep(1000);
1618                 npar_state = QLC_SHARED_REG_RD32(adapter,
1619                                                  QLCNIC_CRB_DEV_NPAR_STATE);
1620         }
1621         if (!npar_opt_timeo) {
1622                 dev_err(&adapter->pdev->dev,
1623                         "Waiting for NPAR state to operational timeout\n");
1624                 return -EIO;
1625         }
1626         return 0;
1627 }
1628
1629 static int
1630 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1631 {
1632         int err;
1633
1634         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1635             adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1636                 return 0;
1637
1638         err = qlcnic_set_default_offload_settings(adapter);
1639         if (err)
1640                 return err;
1641
1642         err = qlcnic_reset_npar_config(adapter);
1643         if (err)
1644                 return err;
1645
1646         qlcnic_dev_set_npar_ready(adapter);
1647
1648         return err;
1649 }
1650
1651 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1652 {
1653         int err;
1654
1655         err = qlcnic_can_start_firmware(adapter);
1656         if (err < 0)
1657                 return err;
1658         else if (!err)
1659                 goto check_fw_status;
1660
1661         if (qlcnic_load_fw_file)
1662                 qlcnic_request_firmware(adapter);
1663         else {
1664                 err = qlcnic_check_flash_fw_ver(adapter);
1665                 if (err)
1666                         goto err_out;
1667
1668                 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1669         }
1670
1671         err = qlcnic_need_fw_reset(adapter);
1672         if (err == 0)
1673                 goto check_fw_status;
1674
1675         err = qlcnic_pinit_from_rom(adapter);
1676         if (err)
1677                 goto err_out;
1678
1679         err = qlcnic_load_firmware(adapter);
1680         if (err)
1681                 goto err_out;
1682
1683         qlcnic_release_firmware(adapter);
1684         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1685
1686 check_fw_status:
1687         err = qlcnic_check_fw_status(adapter);
1688         if (err)
1689                 goto err_out;
1690
1691         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1692         qlcnic_idc_debug_info(adapter, 1);
1693         err = qlcnic_check_eswitch_mode(adapter);
1694         if (err) {
1695                 dev_err(&adapter->pdev->dev,
1696                         "Memory allocation failed for eswitch\n");
1697                 goto err_out;
1698         }
1699         err = qlcnic_set_mgmt_operations(adapter);
1700         if (err)
1701                 goto err_out;
1702
1703         qlcnic_check_options(adapter);
1704         adapter->need_fw_reset = 0;
1705
1706         qlcnic_release_firmware(adapter);
1707         return 0;
1708
1709 err_out:
1710         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1711         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1712
1713         qlcnic_release_firmware(adapter);
1714         return err;
1715 }
1716
1717 static int
1718 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1719 {
1720         irq_handler_t handler;
1721         struct qlcnic_host_sds_ring *sds_ring;
1722         struct qlcnic_host_tx_ring *tx_ring;
1723         int err, ring, num_sds_rings;
1724
1725         unsigned long flags = 0;
1726         struct net_device *netdev = adapter->netdev;
1727         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1728
1729         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1730                 if (qlcnic_82xx_check(adapter))
1731                         handler = qlcnic_tmp_intr;
1732                 else
1733                         handler = qlcnic_83xx_tmp_intr;
1734                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1735                         flags |= IRQF_SHARED;
1736
1737         } else {
1738                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1739                         handler = qlcnic_msix_intr;
1740                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1741                         handler = qlcnic_msi_intr;
1742                 else {
1743                         flags |= IRQF_SHARED;
1744                         if (qlcnic_82xx_check(adapter))
1745                                 handler = qlcnic_intr;
1746                         else
1747                                 handler = qlcnic_83xx_intr;
1748                 }
1749         }
1750         adapter->irq = netdev->irq;
1751
1752         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1753                 if (qlcnic_82xx_check(adapter) ||
1754                     (qlcnic_83xx_check(adapter) &&
1755                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1756                         num_sds_rings = adapter->drv_sds_rings;
1757                         for (ring = 0; ring < num_sds_rings; ring++) {
1758                                 sds_ring = &recv_ctx->sds_rings[ring];
1759                                 if (qlcnic_82xx_check(adapter) &&
1760                                     !qlcnic_check_multi_tx(adapter) &&
1761                                     (ring == (num_sds_rings - 1))) {
1762                                         if (!(adapter->flags &
1763                                               QLCNIC_MSIX_ENABLED))
1764                                                 snprintf(sds_ring->name,
1765                                                          sizeof(sds_ring->name),
1766                                                          "qlcnic");
1767                                         else
1768                                                 snprintf(sds_ring->name,
1769                                                          sizeof(sds_ring->name),
1770                                                          "%s-tx-0-rx-%d",
1771                                                          netdev->name, ring);
1772                                 } else {
1773                                         snprintf(sds_ring->name,
1774                                                  sizeof(sds_ring->name),
1775                                                  "%s-rx-%d",
1776                                                  netdev->name, ring);
1777                                 }
1778                                 err = request_irq(sds_ring->irq, handler, flags,
1779                                                   sds_ring->name, sds_ring);
1780                                 if (err)
1781                                         return err;
1782                         }
1783                 }
1784                 if ((qlcnic_82xx_check(adapter) &&
1785                      qlcnic_check_multi_tx(adapter)) ||
1786                     (qlcnic_83xx_check(adapter) &&
1787                      (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1788                      !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
1789                         handler = qlcnic_msix_tx_intr;
1790                         for (ring = 0; ring < adapter->drv_tx_rings;
1791                              ring++) {
1792                                 tx_ring = &adapter->tx_ring[ring];
1793                                 snprintf(tx_ring->name, sizeof(tx_ring->name),
1794                                          "%s-tx-%d", netdev->name, ring);
1795                                 err = request_irq(tx_ring->irq, handler, flags,
1796                                                   tx_ring->name, tx_ring);
1797                                 if (err)
1798                                         return err;
1799                         }
1800                 }
1801         }
1802         return 0;
1803 }
1804
1805 static void
1806 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1807 {
1808         int ring;
1809         struct qlcnic_host_sds_ring *sds_ring;
1810         struct qlcnic_host_tx_ring *tx_ring;
1811
1812         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1813
1814         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1815                 if (qlcnic_82xx_check(adapter) ||
1816                     (qlcnic_83xx_check(adapter) &&
1817                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1818                         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1819                                 sds_ring = &recv_ctx->sds_rings[ring];
1820                                 free_irq(sds_ring->irq, sds_ring);
1821                         }
1822                 }
1823                 if ((qlcnic_83xx_check(adapter) &&
1824                      !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
1825                     (qlcnic_82xx_check(adapter) &&
1826                      qlcnic_check_multi_tx(adapter))) {
1827                         for (ring = 0; ring < adapter->drv_tx_rings;
1828                              ring++) {
1829                                 tx_ring = &adapter->tx_ring[ring];
1830                                 if (tx_ring->irq)
1831                                         free_irq(tx_ring->irq, tx_ring);
1832                         }
1833                 }
1834         }
1835 }
1836
1837 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1838 {
1839         u32 capab = 0;
1840
1841         if (qlcnic_82xx_check(adapter)) {
1842                 if (adapter->ahw->extra_capability[0] &
1843                     QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1844                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1845         } else {
1846                 capab = adapter->ahw->capabilities;
1847                 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1848                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1849         }
1850 }
1851
1852 static int qlcnic_config_def_intr_coalesce(struct qlcnic_adapter *adapter)
1853 {
1854         struct qlcnic_hardware_context *ahw = adapter->ahw;
1855         int err;
1856
1857         /* Initialize interrupt coalesce parameters */
1858         ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1859
1860         if (qlcnic_83xx_check(adapter)) {
1861                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
1862                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1863                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1864                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1865                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1866
1867                 err = qlcnic_83xx_set_rx_tx_intr_coal(adapter);
1868         } else {
1869                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1870                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1871                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1872
1873                 err = qlcnic_82xx_set_rx_coalesce(adapter);
1874         }
1875
1876         return err;
1877 }
1878
1879 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1880 {
1881         int ring;
1882         struct qlcnic_host_rds_ring *rds_ring;
1883
1884         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1885                 return -EIO;
1886
1887         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1888                 return 0;
1889
1890         if (qlcnic_set_eswitch_port_config(adapter))
1891                 return -EIO;
1892
1893         qlcnic_get_lro_mss_capability(adapter);
1894
1895         if (qlcnic_fw_create_ctx(adapter))
1896                 return -EIO;
1897
1898         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1899                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1900                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1901         }
1902
1903         qlcnic_set_multi(netdev);
1904         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1905
1906         adapter->ahw->linkup = 0;
1907
1908         if (adapter->drv_sds_rings > 1)
1909                 qlcnic_config_rss(adapter, 1);
1910
1911         qlcnic_config_def_intr_coalesce(adapter);
1912
1913         if (netdev->features & NETIF_F_LRO)
1914                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1915
1916         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1917         qlcnic_napi_enable(adapter);
1918
1919         qlcnic_linkevent_request(adapter, 1);
1920
1921         adapter->ahw->reset_context = 0;
1922         netif_tx_start_all_queues(netdev);
1923         return 0;
1924 }
1925
1926 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1927 {
1928         int err = 0;
1929
1930         rtnl_lock();
1931         if (netif_running(netdev))
1932                 err = __qlcnic_up(adapter, netdev);
1933         rtnl_unlock();
1934
1935         return err;
1936 }
1937
1938 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1939 {
1940         int ring;
1941
1942         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1943                 return;
1944
1945         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1946                 return;
1947
1948         smp_mb();
1949         netif_carrier_off(netdev);
1950         adapter->ahw->linkup = 0;
1951         netif_tx_disable(netdev);
1952
1953         qlcnic_free_mac_list(adapter);
1954
1955         if (adapter->fhash.fnum)
1956                 qlcnic_delete_lb_filters(adapter);
1957
1958         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1959         if (qlcnic_sriov_vf_check(adapter))
1960                 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1961
1962         qlcnic_napi_disable(adapter);
1963
1964         qlcnic_fw_destroy_ctx(adapter);
1965         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1966
1967         qlcnic_reset_rx_buffers_list(adapter);
1968
1969         for (ring = 0; ring < adapter->drv_tx_rings; ring++)
1970                 qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
1971 }
1972
1973 /* Usage: During suspend and firmware recovery module */
1974
1975 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1976 {
1977         rtnl_lock();
1978         if (netif_running(netdev))
1979                 __qlcnic_down(adapter, netdev);
1980         rtnl_unlock();
1981
1982 }
1983
1984 int
1985 qlcnic_attach(struct qlcnic_adapter *adapter)
1986 {
1987         struct net_device *netdev = adapter->netdev;
1988         struct pci_dev *pdev = adapter->pdev;
1989         int err;
1990
1991         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1992                 return 0;
1993
1994         err = qlcnic_napi_add(adapter, netdev);
1995         if (err)
1996                 return err;
1997
1998         err = qlcnic_alloc_sw_resources(adapter);
1999         if (err) {
2000                 dev_err(&pdev->dev, "Error in setting sw resources\n");
2001                 goto err_out_napi_del;
2002         }
2003
2004         err = qlcnic_alloc_hw_resources(adapter);
2005         if (err) {
2006                 dev_err(&pdev->dev, "Error in setting hw resources\n");
2007                 goto err_out_free_sw;
2008         }
2009
2010         err = qlcnic_request_irq(adapter);
2011         if (err) {
2012                 dev_err(&pdev->dev, "failed to setup interrupt\n");
2013                 goto err_out_free_hw;
2014         }
2015
2016         qlcnic_create_sysfs_entries(adapter);
2017
2018 #ifdef CONFIG_QLCNIC_VXLAN
2019         if (qlcnic_encap_rx_offload(adapter))
2020                 vxlan_get_rx_port(netdev);
2021 #endif
2022
2023         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
2024         return 0;
2025
2026 err_out_free_hw:
2027         qlcnic_free_hw_resources(adapter);
2028 err_out_free_sw:
2029         qlcnic_free_sw_resources(adapter);
2030 err_out_napi_del:
2031         qlcnic_napi_del(adapter);
2032         return err;
2033 }
2034
2035 void qlcnic_detach(struct qlcnic_adapter *adapter)
2036 {
2037         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2038                 return;
2039
2040         qlcnic_remove_sysfs_entries(adapter);
2041
2042         qlcnic_free_hw_resources(adapter);
2043         qlcnic_release_rx_buffers(adapter);
2044         qlcnic_free_irq(adapter);
2045         qlcnic_napi_del(adapter);
2046         qlcnic_free_sw_resources(adapter);
2047
2048         adapter->is_up = 0;
2049 }
2050
2051 void qlcnic_diag_free_res(struct net_device *netdev, int drv_sds_rings)
2052 {
2053         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2054         struct qlcnic_host_sds_ring *sds_ring;
2055         int drv_tx_rings = adapter->drv_tx_rings;
2056         int ring;
2057
2058         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
2059         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2060                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2061                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
2062                         qlcnic_disable_sds_intr(adapter, sds_ring);
2063                 }
2064         }
2065
2066         qlcnic_fw_destroy_ctx(adapter);
2067
2068         qlcnic_detach(adapter);
2069
2070         adapter->ahw->diag_test = 0;
2071         adapter->drv_sds_rings = drv_sds_rings;
2072         adapter->drv_tx_rings = drv_tx_rings;
2073
2074         if (qlcnic_attach(adapter))
2075                 goto out;
2076
2077         if (netif_running(netdev))
2078                 __qlcnic_up(adapter, netdev);
2079 out:
2080         netif_device_attach(netdev);
2081 }
2082
2083 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
2084 {
2085         struct qlcnic_hardware_context *ahw = adapter->ahw;
2086         int err = 0;
2087
2088         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
2089                                 GFP_KERNEL);
2090         if (!adapter->recv_ctx) {
2091                 err = -ENOMEM;
2092                 goto err_out;
2093         }
2094
2095         if (qlcnic_83xx_check(adapter)) {
2096                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
2097                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
2098                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
2099                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2100                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2101         } else {
2102                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
2103                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2104                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2105         }
2106
2107         /* clear stats */
2108         memset(&adapter->stats, 0, sizeof(adapter->stats));
2109 err_out:
2110         return err;
2111 }
2112
2113 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
2114 {
2115         struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
2116
2117         kfree(adapter->recv_ctx);
2118         adapter->recv_ctx = NULL;
2119
2120         if (fw_dump->tmpl_hdr) {
2121                 vfree(fw_dump->tmpl_hdr);
2122                 fw_dump->tmpl_hdr = NULL;
2123         }
2124
2125         if (fw_dump->dma_buffer) {
2126                 dma_free_coherent(&adapter->pdev->dev, QLC_PEX_DMA_READ_SIZE,
2127                                   fw_dump->dma_buffer, fw_dump->phys_addr);
2128                 fw_dump->dma_buffer = NULL;
2129         }
2130
2131         kfree(adapter->ahw->reset.buff);
2132         adapter->ahw->fw_dump.tmpl_hdr = NULL;
2133 }
2134
2135 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
2136 {
2137         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2138         struct qlcnic_host_sds_ring *sds_ring;
2139         struct qlcnic_host_rds_ring *rds_ring;
2140         int ring;
2141         int ret;
2142
2143         netif_device_detach(netdev);
2144
2145         if (netif_running(netdev))
2146                 __qlcnic_down(adapter, netdev);
2147
2148         qlcnic_detach(adapter);
2149
2150         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
2151         adapter->ahw->diag_test = test;
2152         adapter->ahw->linkup = 0;
2153
2154         ret = qlcnic_attach(adapter);
2155         if (ret) {
2156                 netif_device_attach(netdev);
2157                 return ret;
2158         }
2159
2160         ret = qlcnic_fw_create_ctx(adapter);
2161         if (ret) {
2162                 qlcnic_detach(adapter);
2163                 netif_device_attach(netdev);
2164                 return ret;
2165         }
2166
2167         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
2168                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
2169                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
2170         }
2171
2172         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2173                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2174                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
2175                         qlcnic_enable_sds_intr(adapter, sds_ring);
2176                 }
2177         }
2178
2179         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
2180                 adapter->ahw->loopback_state = 0;
2181                 qlcnic_linkevent_request(adapter, 1);
2182         }
2183
2184         set_bit(__QLCNIC_DEV_UP, &adapter->state);
2185
2186         return 0;
2187 }
2188
2189 /* Reset context in hardware only */
2190 static int
2191 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
2192 {
2193         struct net_device *netdev = adapter->netdev;
2194
2195         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2196                 return -EBUSY;
2197
2198         netif_device_detach(netdev);
2199
2200         qlcnic_down(adapter, netdev);
2201
2202         qlcnic_up(adapter, netdev);
2203
2204         netif_device_attach(netdev);
2205
2206         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2207         netdev_info(adapter->netdev, "%s: soft reset complete\n", __func__);
2208         return 0;
2209 }
2210
2211 int
2212 qlcnic_reset_context(struct qlcnic_adapter *adapter)
2213 {
2214         int err = 0;
2215         struct net_device *netdev = adapter->netdev;
2216
2217         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2218                 return -EBUSY;
2219
2220         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
2221
2222                 netif_device_detach(netdev);
2223
2224                 if (netif_running(netdev))
2225                         __qlcnic_down(adapter, netdev);
2226
2227                 qlcnic_detach(adapter);
2228
2229                 if (netif_running(netdev)) {
2230                         err = qlcnic_attach(adapter);
2231                         if (!err) {
2232                                 __qlcnic_up(adapter, netdev);
2233                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2234                         }
2235                 }
2236
2237                 netif_device_attach(netdev);
2238         }
2239
2240         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2241         return err;
2242 }
2243
2244 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
2245 {
2246         struct qlcnic_hardware_context *ahw = adapter->ahw;
2247         u16 act_pci_fn = ahw->total_nic_func;
2248         u16 count;
2249
2250         ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
2251         if (act_pci_fn <= 2)
2252                 count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
2253                          act_pci_fn;
2254         else
2255                 count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
2256                          act_pci_fn;
2257         ahw->max_uc_count = count;
2258 }
2259
2260 static int qlcnic_set_real_num_queues(struct qlcnic_adapter *adapter,
2261                                       u8 tx_queues, u8 rx_queues)
2262 {
2263         struct net_device *netdev = adapter->netdev;
2264         int err = 0;
2265
2266         if (tx_queues) {
2267                 err = netif_set_real_num_tx_queues(netdev, tx_queues);
2268                 if (err) {
2269                         netdev_err(netdev, "failed to set %d Tx queues\n",
2270                                    tx_queues);
2271                         return err;
2272                 }
2273         }
2274
2275         if (rx_queues) {
2276                 err = netif_set_real_num_rx_queues(netdev, rx_queues);
2277                 if (err)
2278                         netdev_err(netdev, "failed to set %d Rx queues\n",
2279                                    rx_queues);
2280         }
2281
2282         return err;
2283 }
2284
2285 int
2286 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
2287                     int pci_using_dac)
2288 {
2289         int err;
2290         struct pci_dev *pdev = adapter->pdev;
2291
2292         adapter->rx_csum = 1;
2293         adapter->ahw->mc_enabled = 0;
2294         qlcnic_set_mac_filter_count(adapter);
2295
2296         netdev->netdev_ops         = &qlcnic_netdev_ops;
2297         netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
2298
2299         qlcnic_change_mtu(netdev, netdev->mtu);
2300
2301         netdev->ethtool_ops = (qlcnic_sriov_vf_check(adapter)) ?
2302                 &qlcnic_sriov_vf_ethtool_ops : &qlcnic_ethtool_ops;
2303
2304         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2305                              NETIF_F_IPV6_CSUM | NETIF_F_GRO |
2306                              NETIF_F_HW_VLAN_CTAG_RX);
2307         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
2308                                   NETIF_F_IPV6_CSUM);
2309
2310         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
2311                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
2312                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
2313         }
2314
2315         if (pci_using_dac) {
2316                 netdev->features |= NETIF_F_HIGHDMA;
2317                 netdev->vlan_features |= NETIF_F_HIGHDMA;
2318         }
2319
2320         if (qlcnic_vlan_tx_check(adapter))
2321                 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
2322
2323         if (qlcnic_sriov_vf_check(adapter))
2324                 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2325
2326         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
2327                 netdev->features |= NETIF_F_LRO;
2328
2329         if (qlcnic_encap_tx_offload(adapter)) {
2330                 netdev->features |= NETIF_F_GSO_UDP_TUNNEL;
2331
2332                 /* encapsulation Tx offload supported by Adapter */
2333                 netdev->hw_enc_features = NETIF_F_IP_CSUM        |
2334                                           NETIF_F_GSO_UDP_TUNNEL |
2335                                           NETIF_F_TSO            |
2336                                           NETIF_F_TSO6;
2337         }
2338
2339         if (qlcnic_encap_rx_offload(adapter))
2340                 netdev->hw_enc_features |= NETIF_F_RXCSUM;
2341
2342         netdev->hw_features = netdev->features;
2343         netdev->priv_flags |= IFF_UNICAST_FLT;
2344         netdev->irq = adapter->msix_entries[0].vector;
2345
2346         err = qlcnic_set_real_num_queues(adapter, adapter->drv_tx_rings,
2347                                          adapter->drv_sds_rings);
2348         if (err)
2349                 return err;
2350
2351         qlcnic_dcb_init_dcbnl_ops(adapter->dcb);
2352
2353         err = register_netdev(netdev);
2354         if (err) {
2355                 dev_err(&pdev->dev, "failed to register net device\n");
2356                 return err;
2357         }
2358
2359         return 0;
2360 }
2361
2362 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
2363 {
2364         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
2365                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
2366                 *pci_using_dac = 1;
2367         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
2368                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
2369                 *pci_using_dac = 0;
2370         else {
2371                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
2372                 return -EIO;
2373         }
2374
2375         return 0;
2376 }
2377
2378 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
2379 {
2380         int ring;
2381         struct qlcnic_host_tx_ring *tx_ring;
2382
2383         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2384                 tx_ring = &adapter->tx_ring[ring];
2385                 if (tx_ring) {
2386                         vfree(tx_ring->cmd_buf_arr);
2387                         tx_ring->cmd_buf_arr = NULL;
2388                 }
2389         }
2390         kfree(adapter->tx_ring);
2391 }
2392
2393 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
2394                           struct net_device *netdev)
2395 {
2396         int ring, vector, index;
2397         struct qlcnic_host_tx_ring *tx_ring;
2398         struct qlcnic_cmd_buffer *cmd_buf_arr;
2399
2400         tx_ring = kcalloc(adapter->drv_tx_rings,
2401                           sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
2402         if (tx_ring == NULL)
2403                 return -ENOMEM;
2404
2405         adapter->tx_ring = tx_ring;
2406
2407         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2408                 tx_ring = &adapter->tx_ring[ring];
2409                 tx_ring->num_desc = adapter->num_txd;
2410                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
2411                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
2412                 if (cmd_buf_arr == NULL) {
2413                         qlcnic_free_tx_rings(adapter);
2414                         return -ENOMEM;
2415                 }
2416                 tx_ring->cmd_buf_arr = cmd_buf_arr;
2417                 spin_lock_init(&tx_ring->tx_clean_lock);
2418         }
2419
2420         if (qlcnic_83xx_check(adapter) ||
2421             (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
2422                 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2423                         tx_ring = &adapter->tx_ring[ring];
2424                         tx_ring->adapter = adapter;
2425                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
2426                                 index = adapter->drv_sds_rings + ring;
2427                                 vector = adapter->msix_entries[index].vector;
2428                                 tx_ring->irq = vector;
2429                         }
2430                 }
2431         }
2432
2433         return 0;
2434 }
2435
2436 void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
2437 {
2438         struct qlcnic_hardware_context *ahw = adapter->ahw;
2439         u32 fw_cmd = 0;
2440
2441         if (qlcnic_82xx_check(adapter))
2442                 fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
2443         else if (qlcnic_83xx_check(adapter))
2444                 fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
2445
2446         if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER)
2447                 qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
2448 }
2449
2450 /* Reset firmware API lock */
2451 static void qlcnic_reset_api_lock(struct qlcnic_adapter *adapter)
2452 {
2453         qlcnic_api_lock(adapter);
2454         qlcnic_api_unlock(adapter);
2455 }
2456
2457
2458 static int
2459 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2460 {
2461         struct net_device *netdev = NULL;
2462         struct qlcnic_adapter *adapter = NULL;
2463         struct qlcnic_hardware_context *ahw;
2464         int err, pci_using_dac = -1;
2465         char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
2466
2467         err = pci_enable_device(pdev);
2468         if (err)
2469                 return err;
2470
2471         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2472                 err = -ENODEV;
2473                 goto err_out_disable_pdev;
2474         }
2475
2476         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
2477         if (err)
2478                 goto err_out_disable_pdev;
2479
2480         err = pci_request_regions(pdev, qlcnic_driver_name);
2481         if (err)
2482                 goto err_out_disable_pdev;
2483
2484         pci_set_master(pdev);
2485         pci_enable_pcie_error_reporting(pdev);
2486
2487         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2488         if (!ahw) {
2489                 err = -ENOMEM;
2490                 goto err_out_free_res;
2491         }
2492
2493         switch (ent->device) {
2494         case PCI_DEVICE_ID_QLOGIC_QLE824X:
2495                 ahw->hw_ops = &qlcnic_hw_ops;
2496                 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2497                 break;
2498         case PCI_DEVICE_ID_QLOGIC_QLE834X:
2499         case PCI_DEVICE_ID_QLOGIC_QLE8830:
2500         case PCI_DEVICE_ID_QLOGIC_QLE844X:
2501                 qlcnic_83xx_register_map(ahw);
2502                 break;
2503         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2504         case PCI_DEVICE_ID_QLOGIC_VF_QLE8C30:
2505         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2506                 qlcnic_sriov_vf_register_map(ahw);
2507                 break;
2508         default:
2509                 goto err_out_free_hw_res;
2510         }
2511
2512         err = qlcnic_setup_pci_map(pdev, ahw);
2513         if (err)
2514                 goto err_out_free_hw_res;
2515
2516         netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
2517                                    QLCNIC_MAX_TX_RINGS);
2518         if (!netdev) {
2519                 err = -ENOMEM;
2520                 goto err_out_iounmap;
2521         }
2522
2523         SET_NETDEV_DEV(netdev, &pdev->dev);
2524
2525         adapter = netdev_priv(netdev);
2526         adapter->netdev  = netdev;
2527         adapter->pdev    = pdev;
2528         adapter->ahw = ahw;
2529
2530         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2531         if (adapter->qlcnic_wq == NULL) {
2532                 err = -ENOMEM;
2533                 dev_err(&pdev->dev, "Failed to create workqueue\n");
2534                 goto err_out_free_netdev;
2535         }
2536
2537         err = qlcnic_alloc_adapter_resources(adapter);
2538         if (err)
2539                 goto err_out_free_wq;
2540
2541         adapter->dev_rst_time = jiffies;
2542         ahw->revision_id = pdev->revision;
2543         ahw->max_vnic_func = qlcnic_get_vnic_func_count(adapter);
2544         if (qlcnic_mac_learn == FDB_MAC_LEARN)
2545                 adapter->fdb_mac_learn = true;
2546         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2547                 adapter->drv_mac_learn = true;
2548
2549         rwlock_init(&adapter->ahw->crb_lock);
2550         mutex_init(&adapter->ahw->mem_lock);
2551
2552         INIT_LIST_HEAD(&adapter->mac_list);
2553
2554         qlcnic_register_dcb(adapter);
2555
2556         if (qlcnic_82xx_check(adapter)) {
2557                 qlcnic_check_vf(adapter, ent);
2558                 adapter->portnum = adapter->ahw->pci_func;
2559                 qlcnic_reset_api_lock(adapter);
2560                 err = qlcnic_start_firmware(adapter);
2561                 if (err) {
2562                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
2563                                 "\t\tIf reboot doesn't help, try flashing the card\n");
2564                         goto err_out_maintenance_mode;
2565                 }
2566
2567                 /* compute and set default and max tx/sds rings */
2568                 if (adapter->ahw->msix_supported) {
2569                         if (qlcnic_check_multi_tx_capability(adapter) == 1)
2570                                 qlcnic_set_tx_ring_count(adapter,
2571                                                          QLCNIC_SINGLE_RING);
2572                         else
2573                                 qlcnic_set_tx_ring_count(adapter,
2574                                                          QLCNIC_DEF_TX_RINGS);
2575                         qlcnic_set_sds_ring_count(adapter,
2576                                                   QLCNIC_DEF_SDS_RINGS);
2577                 } else {
2578                         qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
2579                         qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
2580                 }
2581
2582                 err = qlcnic_setup_idc_param(adapter);
2583                 if (err)
2584                         goto err_out_free_hw;
2585
2586                 adapter->flags |= QLCNIC_NEED_FLR;
2587
2588         } else if (qlcnic_83xx_check(adapter)) {
2589                 qlcnic_83xx_check_vf(adapter, ent);
2590                 adapter->portnum = adapter->ahw->pci_func;
2591                 err = qlcnic_83xx_init(adapter, pci_using_dac);
2592                 if (err) {
2593                         switch (err) {
2594                         case -ENOTRECOVERABLE:
2595                                 dev_err(&pdev->dev, "Adapter initialization failed due to a faulty hardware\n");
2596                                 dev_err(&pdev->dev, "Please replace the adapter with new one and return the faulty adapter for repair\n");
2597                                 goto err_out_free_hw;
2598                         case -ENOMEM:
2599                                 dev_err(&pdev->dev, "Adapter initialization failed. Please reboot\n");
2600                                 goto err_out_free_hw;
2601                         case -EOPNOTSUPP:
2602                                 dev_err(&pdev->dev, "Adapter initialization failed\n");
2603                                 goto err_out_free_hw;
2604                         default:
2605                                 dev_err(&pdev->dev, "Adapter initialization failed. Driver will load in maintenance mode to recover the adapter using the application\n");
2606                                 goto err_out_maintenance_mode;
2607                         }
2608                 }
2609
2610                 if (qlcnic_sriov_vf_check(adapter))
2611                         return 0;
2612         } else {
2613                 dev_err(&pdev->dev,
2614                         "%s: failed. Please Reboot\n", __func__);
2615                 err = -ENODEV;
2616                 goto err_out_free_hw;
2617         }
2618
2619         if (qlcnic_read_mac_addr(adapter))
2620                 dev_warn(&pdev->dev, "failed to read mac addr\n");
2621
2622         qlcnic_read_phys_port_id(adapter);
2623
2624         if (adapter->portnum == 0) {
2625                 qlcnic_get_board_name(adapter, board_name);
2626
2627                 pr_info("%s: %s Board Chip rev 0x%x\n",
2628                         module_name(THIS_MODULE),
2629                         board_name, adapter->ahw->revision_id);
2630         }
2631
2632         if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2633             !!qlcnic_use_msi)
2634                 dev_warn(&pdev->dev,
2635                          "Device does not support MSI interrupts\n");
2636
2637         if (qlcnic_82xx_check(adapter)) {
2638                 qlcnic_dcb_enable(adapter->dcb);
2639                 qlcnic_dcb_get_info(adapter->dcb);
2640                 err = qlcnic_setup_intr(adapter);
2641
2642                 if (err) {
2643                         dev_err(&pdev->dev, "Failed to setup interrupt\n");
2644                         goto err_out_disable_msi;
2645                 }
2646         }
2647
2648         err = qlcnic_get_act_pci_func(adapter);
2649         if (err)
2650                 goto err_out_disable_mbx_intr;
2651
2652         if (adapter->portnum == 0)
2653                 qlcnic_set_drv_version(adapter);
2654
2655         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2656         if (err)
2657                 goto err_out_disable_mbx_intr;
2658
2659         pci_set_drvdata(pdev, adapter);
2660
2661         if (qlcnic_82xx_check(adapter))
2662                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2663                                      FW_POLL_DELAY);
2664
2665         switch (adapter->ahw->port_type) {
2666         case QLCNIC_GBE:
2667                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2668                                 adapter->netdev->name);
2669                 break;
2670         case QLCNIC_XGBE:
2671                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2672                                 adapter->netdev->name);
2673                 break;
2674         }
2675
2676         if (adapter->drv_mac_learn)
2677                 qlcnic_alloc_lb_filters_mem(adapter);
2678
2679         qlcnic_add_sysfs(adapter);
2680         qlcnic_register_hwmon_dev(adapter);
2681         return 0;
2682
2683 err_out_disable_mbx_intr:
2684         if (qlcnic_83xx_check(adapter))
2685                 qlcnic_83xx_free_mbx_intr(adapter);
2686
2687 err_out_disable_msi:
2688         qlcnic_teardown_intr(adapter);
2689         qlcnic_cancel_idc_work(adapter);
2690         qlcnic_clr_all_drv_state(adapter, 0);
2691
2692 err_out_free_hw:
2693         qlcnic_free_adapter_resources(adapter);
2694
2695 err_out_free_wq:
2696         destroy_workqueue(adapter->qlcnic_wq);
2697
2698 err_out_free_netdev:
2699         free_netdev(netdev);
2700
2701 err_out_iounmap:
2702         qlcnic_cleanup_pci_map(ahw);
2703
2704 err_out_free_hw_res:
2705         kfree(ahw);
2706
2707 err_out_free_res:
2708         pci_release_regions(pdev);
2709
2710 err_out_disable_pdev:
2711         pci_disable_device(pdev);
2712         return err;
2713
2714 err_out_maintenance_mode:
2715         set_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state);
2716         netdev->netdev_ops = &qlcnic_netdev_failed_ops;
2717         netdev->ethtool_ops = &qlcnic_ethtool_failed_ops;
2718         ahw->port_type = QLCNIC_XGBE;
2719
2720         if (qlcnic_83xx_check(adapter))
2721                 adapter->tgt_status_reg = NULL;
2722         else
2723                 ahw->board_type = QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS;
2724
2725         err = register_netdev(netdev);
2726
2727         if (err) {
2728                 dev_err(&pdev->dev, "Failed to register net device\n");
2729                 qlcnic_clr_all_drv_state(adapter, 0);
2730                 goto err_out_free_hw;
2731         }
2732
2733         pci_set_drvdata(pdev, adapter);
2734         qlcnic_add_sysfs(adapter);
2735
2736         return 0;
2737 }
2738
2739 static void qlcnic_remove(struct pci_dev *pdev)
2740 {
2741         struct qlcnic_adapter *adapter;
2742         struct net_device *netdev;
2743         struct qlcnic_hardware_context *ahw;
2744
2745         adapter = pci_get_drvdata(pdev);
2746         if (adapter == NULL)
2747                 return;
2748
2749         netdev = adapter->netdev;
2750
2751         qlcnic_cancel_idc_work(adapter);
2752         qlcnic_sriov_pf_disable(adapter);
2753         ahw = adapter->ahw;
2754
2755         unregister_netdev(netdev);
2756         qlcnic_sriov_cleanup(adapter);
2757
2758         if (qlcnic_83xx_check(adapter)) {
2759                 qlcnic_83xx_initialize_nic(adapter, 0);
2760                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2761                 qlcnic_83xx_free_mbx_intr(adapter);
2762                 qlcnic_83xx_detach_mailbox_work(adapter);
2763                 qlcnic_83xx_free_mailbox(ahw->mailbox);
2764                 kfree(ahw->fw_info);
2765         }
2766
2767         qlcnic_dcb_free(adapter->dcb);
2768         qlcnic_detach(adapter);
2769         kfree(adapter->npars);
2770         kfree(adapter->eswitch);
2771
2772         if (qlcnic_82xx_check(adapter))
2773                 qlcnic_clr_all_drv_state(adapter, 0);
2774
2775         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2776
2777         qlcnic_free_lb_filters_mem(adapter);
2778
2779         qlcnic_teardown_intr(adapter);
2780
2781         qlcnic_remove_sysfs(adapter);
2782
2783         qlcnic_unregister_hwmon_dev(adapter);
2784
2785         qlcnic_cleanup_pci_map(adapter->ahw);
2786
2787         qlcnic_release_firmware(adapter);
2788
2789         pci_disable_pcie_error_reporting(pdev);
2790         pci_release_regions(pdev);
2791         pci_disable_device(pdev);
2792
2793         if (adapter->qlcnic_wq) {
2794                 destroy_workqueue(adapter->qlcnic_wq);
2795                 adapter->qlcnic_wq = NULL;
2796         }
2797
2798         qlcnic_free_adapter_resources(adapter);
2799         kfree(ahw);
2800         free_netdev(netdev);
2801 }
2802
2803 static void qlcnic_shutdown(struct pci_dev *pdev)
2804 {
2805         if (__qlcnic_shutdown(pdev))
2806                 return;
2807
2808         pci_disable_device(pdev);
2809 }
2810
2811 #ifdef CONFIG_PM
2812 static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2813 {
2814         int retval;
2815
2816         retval = __qlcnic_shutdown(pdev);
2817         if (retval)
2818                 return retval;
2819
2820         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2821         return 0;
2822 }
2823
2824 static int qlcnic_resume(struct pci_dev *pdev)
2825 {
2826         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2827         int err;
2828
2829         err = pci_enable_device(pdev);
2830         if (err)
2831                 return err;
2832
2833         pci_set_power_state(pdev, PCI_D0);
2834         pci_set_master(pdev);
2835         pci_restore_state(pdev);
2836
2837         return  __qlcnic_resume(adapter);
2838 }
2839 #endif
2840
2841 static int qlcnic_open(struct net_device *netdev)
2842 {
2843         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2844         int err;
2845
2846         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
2847                 netdev_err(netdev, "%s: Device is in non-operational state\n",
2848                            __func__);
2849
2850                 return -EIO;
2851         }
2852
2853         netif_carrier_off(netdev);
2854
2855         err = qlcnic_attach(adapter);
2856         if (err)
2857                 return err;
2858
2859         err = __qlcnic_up(adapter, netdev);
2860         if (err)
2861                 qlcnic_detach(adapter);
2862
2863         return err;
2864 }
2865
2866 /*
2867  * qlcnic_close - Disables a network interface entry point
2868  */
2869 static int qlcnic_close(struct net_device *netdev)
2870 {
2871         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2872
2873         __qlcnic_down(adapter, netdev);
2874
2875         return 0;
2876 }
2877
2878 #define QLCNIC_VF_LB_BUCKET_SIZE 1
2879
2880 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2881 {
2882         void *head;
2883         int i;
2884         struct net_device *netdev = adapter->netdev;
2885         u32 filter_size = 0;
2886         u16 act_pci_func = 0;
2887
2888         if (adapter->fhash.fmax && adapter->fhash.fhead)
2889                 return;
2890
2891         act_pci_func = adapter->ahw->total_nic_func;
2892         spin_lock_init(&adapter->mac_learn_lock);
2893         spin_lock_init(&adapter->rx_mac_learn_lock);
2894
2895         if (qlcnic_sriov_vf_check(adapter)) {
2896                 filter_size = QLCNIC_83XX_SRIOV_VF_MAX_MAC - 1;
2897                 adapter->fhash.fbucket_size = QLCNIC_VF_LB_BUCKET_SIZE;
2898         } else if (qlcnic_82xx_check(adapter)) {
2899                 filter_size = QLCNIC_LB_MAX_FILTERS;
2900                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2901         } else {
2902                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2903                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2904         }
2905
2906         head = kcalloc(adapter->fhash.fbucket_size,
2907                        sizeof(struct hlist_head), GFP_ATOMIC);
2908
2909         if (!head)
2910                 return;
2911
2912         adapter->fhash.fmax = (filter_size / act_pci_func);
2913         adapter->fhash.fhead = head;
2914
2915         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2916                     act_pci_func, adapter->fhash.fmax);
2917
2918         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2919                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2920
2921         adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2922
2923         head = kcalloc(adapter->rx_fhash.fbucket_size,
2924                        sizeof(struct hlist_head), GFP_ATOMIC);
2925
2926         if (!head)
2927                 return;
2928
2929         adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2930         adapter->rx_fhash.fhead = head;
2931
2932         for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2933                 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2934 }
2935
2936 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2937 {
2938         if (adapter->fhash.fmax)
2939                 kfree(adapter->fhash.fhead);
2940
2941         adapter->fhash.fhead = NULL;
2942         adapter->fhash.fmax = 0;
2943
2944         if (adapter->rx_fhash.fmax)
2945                 kfree(adapter->rx_fhash.fhead);
2946
2947         adapter->rx_fhash.fmax = 0;
2948         adapter->rx_fhash.fhead = NULL;
2949 }
2950
2951 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2952 {
2953         struct net_device *netdev = adapter->netdev;
2954         u32 temp_state, temp_val, temp = 0;
2955         int rv = 0;
2956
2957         if (qlcnic_83xx_check(adapter))
2958                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2959
2960         if (qlcnic_82xx_check(adapter))
2961                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2962
2963         temp_state = qlcnic_get_temp_state(temp);
2964         temp_val = qlcnic_get_temp_val(temp);
2965
2966         if (temp_state == QLCNIC_TEMP_PANIC) {
2967                 dev_err(&netdev->dev,
2968                        "Device temperature %d degrees C exceeds"
2969                        " maximum allowed. Hardware has been shut down.\n",
2970                        temp_val);
2971                 rv = 1;
2972         } else if (temp_state == QLCNIC_TEMP_WARN) {
2973                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2974                         dev_err(&netdev->dev,
2975                                "Device temperature %d degrees C "
2976                                "exceeds operating range."
2977                                " Immediate action needed.\n",
2978                                temp_val);
2979                 }
2980         } else {
2981                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2982                         dev_info(&netdev->dev,
2983                                "Device temperature is now %d degrees C"
2984                                " in normal range.\n", temp_val);
2985                 }
2986         }
2987         adapter->ahw->temp = temp_state;
2988         return rv;
2989 }
2990
2991 static inline void dump_tx_ring_desc(struct qlcnic_host_tx_ring *tx_ring)
2992 {
2993         int i;
2994         struct cmd_desc_type0 *tx_desc_info;
2995
2996         for (i = 0; i < tx_ring->num_desc; i++) {
2997                 tx_desc_info = &tx_ring->desc_head[i];
2998                 pr_info("TX Desc: %d\n", i);
2999                 print_hex_dump(KERN_INFO, "TX: ", DUMP_PREFIX_OFFSET, 16, 1,
3000                                &tx_ring->desc_head[i],
3001                                sizeof(struct cmd_desc_type0), true);
3002         }
3003 }
3004
3005 static void qlcnic_dump_rings(struct qlcnic_adapter *adapter)
3006 {
3007         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
3008         struct net_device *netdev = adapter->netdev;
3009         struct qlcnic_host_rds_ring *rds_ring;
3010         struct qlcnic_host_sds_ring *sds_ring;
3011         struct qlcnic_host_tx_ring *tx_ring;
3012         int ring;
3013
3014         if (!netdev || !netif_running(netdev))
3015                 return;
3016
3017         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
3018                 rds_ring = &recv_ctx->rds_rings[ring];
3019                 if (!rds_ring)
3020                         continue;
3021                 netdev_info(netdev,
3022                             "rds_ring=%d crb_rcv_producer=%d producer=%u num_desc=%u\n",
3023                              ring, readl(rds_ring->crb_rcv_producer),
3024                              rds_ring->producer, rds_ring->num_desc);
3025         }
3026
3027         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3028                 sds_ring = &(recv_ctx->sds_rings[ring]);
3029                 if (!sds_ring)
3030                         continue;
3031                 netdev_info(netdev,
3032                             "sds_ring=%d crb_sts_consumer=%d consumer=%u crb_intr_mask=%d num_desc=%u\n",
3033                             ring, readl(sds_ring->crb_sts_consumer),
3034                             sds_ring->consumer, readl(sds_ring->crb_intr_mask),
3035                             sds_ring->num_desc);
3036         }
3037
3038         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3039                 tx_ring = &adapter->tx_ring[ring];
3040                 if (!tx_ring)
3041                         continue;
3042                 netdev_info(netdev, "Tx ring=%d Context Id=0x%x\n",
3043                             ring, tx_ring->ctx_id);
3044                 netdev_info(netdev,
3045                             "xmit_finished=%llu, xmit_called=%llu, xmit_on=%llu, xmit_off=%llu\n",
3046                             tx_ring->tx_stats.xmit_finished,
3047                             tx_ring->tx_stats.xmit_called,
3048                             tx_ring->tx_stats.xmit_on,
3049                             tx_ring->tx_stats.xmit_off);
3050
3051                 if (tx_ring->crb_intr_mask)
3052                         netdev_info(netdev, "crb_intr_mask=%d\n",
3053                                     readl(tx_ring->crb_intr_mask));
3054
3055                 netdev_info(netdev,
3056                             "hw_producer=%d, sw_producer=%d sw_consumer=%d, hw_consumer=%d\n",
3057                             readl(tx_ring->crb_cmd_producer),
3058                             tx_ring->producer, tx_ring->sw_consumer,
3059                             le32_to_cpu(*(tx_ring->hw_consumer)));
3060
3061                 netdev_info(netdev, "Total desc=%d, Available desc=%d\n",
3062                             tx_ring->num_desc, qlcnic_tx_avail(tx_ring));
3063
3064                 if (netif_msg_tx_err(adapter->ahw))
3065                         dump_tx_ring_desc(tx_ring);
3066         }
3067
3068 }
3069
3070 static void qlcnic_tx_timeout(struct net_device *netdev)
3071 {
3072         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3073
3074         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3075                 return;
3076
3077         qlcnic_dump_rings(adapter);
3078
3079         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS ||
3080             netif_msg_tx_err(adapter->ahw)) {
3081                 netdev_err(netdev, "Tx timeout, reset the adapter.\n");
3082                 if (qlcnic_82xx_check(adapter))
3083                         adapter->need_fw_reset = 1;
3084                 else if (qlcnic_83xx_check(adapter))
3085                         qlcnic_83xx_idc_request_reset(adapter,
3086                                                       QLCNIC_FORCE_FW_DUMP_KEY);
3087         } else {
3088                 netdev_err(netdev, "Tx timeout, reset adapter context.\n");
3089                 adapter->ahw->reset_context = 1;
3090         }
3091 }
3092
3093 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
3094 {
3095         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3096         struct net_device_stats *stats = &netdev->stats;
3097
3098         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
3099                 qlcnic_update_stats(adapter);
3100
3101         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
3102         stats->tx_packets = adapter->stats.xmitfinished;
3103         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
3104         stats->tx_bytes = adapter->stats.txbytes;
3105         stats->rx_dropped = adapter->stats.rxdropped;
3106         stats->tx_dropped = adapter->stats.txdropped;
3107
3108         return stats;
3109 }
3110
3111 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
3112 {
3113         u32 status;
3114
3115         status = readl(adapter->isr_int_vec);
3116
3117         if (!(status & adapter->ahw->int_vec_bit))
3118                 return IRQ_NONE;
3119
3120         /* check interrupt state machine, to be sure */
3121         status = readl(adapter->crb_int_state_reg);
3122         if (!ISR_LEGACY_INT_TRIGGERED(status))
3123                 return IRQ_NONE;
3124
3125         writel(0xffffffff, adapter->tgt_status_reg);
3126         /* read twice to ensure write is flushed */
3127         readl(adapter->isr_int_vec);
3128         readl(adapter->isr_int_vec);
3129
3130         return IRQ_HANDLED;
3131 }
3132
3133 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
3134 {
3135         struct qlcnic_host_sds_ring *sds_ring = data;
3136         struct qlcnic_adapter *adapter = sds_ring->adapter;
3137
3138         if (adapter->flags & QLCNIC_MSIX_ENABLED)
3139                 goto done;
3140         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
3141                 writel(0xffffffff, adapter->tgt_status_reg);
3142                 goto done;
3143         }
3144
3145         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3146                 return IRQ_NONE;
3147
3148 done:
3149         adapter->ahw->diag_cnt++;
3150         qlcnic_enable_sds_intr(adapter, sds_ring);
3151         return IRQ_HANDLED;
3152 }
3153
3154 static irqreturn_t qlcnic_intr(int irq, void *data)
3155 {
3156         struct qlcnic_host_sds_ring *sds_ring = data;
3157         struct qlcnic_adapter *adapter = sds_ring->adapter;
3158
3159         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3160                 return IRQ_NONE;
3161
3162         napi_schedule(&sds_ring->napi);
3163
3164         return IRQ_HANDLED;
3165 }
3166
3167 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
3168 {
3169         struct qlcnic_host_sds_ring *sds_ring = data;
3170         struct qlcnic_adapter *adapter = sds_ring->adapter;
3171
3172         /* clear interrupt */
3173         writel(0xffffffff, adapter->tgt_status_reg);
3174
3175         napi_schedule(&sds_ring->napi);
3176         return IRQ_HANDLED;
3177 }
3178
3179 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
3180 {
3181         struct qlcnic_host_sds_ring *sds_ring = data;
3182
3183         napi_schedule(&sds_ring->napi);
3184         return IRQ_HANDLED;
3185 }
3186
3187 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
3188 {
3189         struct qlcnic_host_tx_ring *tx_ring = data;
3190
3191         napi_schedule(&tx_ring->napi);
3192         return IRQ_HANDLED;
3193 }
3194
3195 #ifdef CONFIG_NET_POLL_CONTROLLER
3196 static void qlcnic_poll_controller(struct net_device *netdev)
3197 {
3198         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3199         struct qlcnic_host_sds_ring *sds_ring;
3200         struct qlcnic_recv_context *recv_ctx;
3201         struct qlcnic_host_tx_ring *tx_ring;
3202         int ring;
3203
3204         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3205                 return;
3206
3207         recv_ctx = adapter->recv_ctx;
3208
3209         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3210                 sds_ring = &recv_ctx->sds_rings[ring];
3211                 qlcnic_disable_sds_intr(adapter, sds_ring);
3212                 napi_schedule(&sds_ring->napi);
3213         }
3214
3215         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
3216                 /* Only Multi-Tx queue capable devices need to
3217                  * schedule NAPI for TX rings
3218                  */
3219                 if ((qlcnic_83xx_check(adapter) &&
3220                      (adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
3221                     (qlcnic_82xx_check(adapter) &&
3222                      !qlcnic_check_multi_tx(adapter)))
3223                         return;
3224
3225                 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3226                         tx_ring = &adapter->tx_ring[ring];
3227                         qlcnic_disable_tx_intr(adapter, tx_ring);
3228                         napi_schedule(&tx_ring->napi);
3229                 }
3230         }
3231 }
3232 #endif
3233
3234 static void
3235 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
3236 {
3237         u32 val;
3238
3239         val = adapter->portnum & 0xf;
3240         val |= encoding << 7;
3241         val |= (jiffies - adapter->dev_rst_time) << 8;
3242
3243         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
3244         adapter->dev_rst_time = jiffies;
3245 }
3246
3247 static int
3248 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
3249 {
3250         u32  val;
3251
3252         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
3253                         state != QLCNIC_DEV_NEED_QUISCENT);
3254
3255         if (qlcnic_api_lock(adapter))
3256                 return -EIO;
3257
3258         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3259
3260         if (state == QLCNIC_DEV_NEED_RESET)
3261                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3262         else if (state == QLCNIC_DEV_NEED_QUISCENT)
3263                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
3264
3265         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3266
3267         qlcnic_api_unlock(adapter);
3268
3269         return 0;
3270 }
3271
3272 static int
3273 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
3274 {
3275         u32  val;
3276
3277         if (qlcnic_api_lock(adapter))
3278                 return -EBUSY;
3279
3280         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3281         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3282         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3283
3284         qlcnic_api_unlock(adapter);
3285
3286         return 0;
3287 }
3288
3289 void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
3290 {
3291         u32  val;
3292
3293         if (qlcnic_api_lock(adapter))
3294                 goto err;
3295
3296         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3297         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
3298         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3299
3300         if (failed) {
3301                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3302                                     QLCNIC_DEV_FAILED);
3303                 dev_info(&adapter->pdev->dev,
3304                                 "Device state set to Failed. Please Reboot\n");
3305         } else if (!(val & 0x11111111))
3306                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3307                                     QLCNIC_DEV_COLD);
3308
3309         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3310         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3311         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3312
3313         qlcnic_api_unlock(adapter);
3314 err:
3315         adapter->fw_fail_cnt = 0;
3316         adapter->flags &= ~QLCNIC_FW_HANG;
3317         clear_bit(__QLCNIC_START_FW, &adapter->state);
3318         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3319 }
3320
3321 /* Grab api lock, before checking state */
3322 static int
3323 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
3324 {
3325         int act, state, active_mask;
3326         struct qlcnic_hardware_context *ahw = adapter->ahw;
3327
3328         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3329         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3330
3331         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
3332                 active_mask = (~(1 << (ahw->pci_func * 4)));
3333                 act = act & active_mask;
3334         }
3335
3336         if (((state & 0x11111111) == (act & 0x11111111)) ||
3337                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
3338                 return 0;
3339         else
3340                 return 1;
3341 }
3342
3343 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
3344 {
3345         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
3346
3347         if (val != QLCNIC_DRV_IDC_VER) {
3348                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
3349                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
3350         }
3351
3352         return 0;
3353 }
3354
3355 static int
3356 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
3357 {
3358         u32 val, prev_state;
3359         u8 dev_init_timeo = adapter->dev_init_timeo;
3360         u8 portnum = adapter->portnum;
3361         u8 ret;
3362
3363         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
3364                 return 1;
3365
3366         if (qlcnic_api_lock(adapter))
3367                 return -1;
3368
3369         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3370         if (!(val & (1 << (portnum * 4)))) {
3371                 QLC_DEV_SET_REF_CNT(val, portnum);
3372                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3373         }
3374
3375         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3376         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
3377
3378         switch (prev_state) {
3379         case QLCNIC_DEV_COLD:
3380                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3381                                     QLCNIC_DEV_INITIALIZING);
3382                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
3383                                     QLCNIC_DRV_IDC_VER);
3384                 qlcnic_idc_debug_info(adapter, 0);
3385                 qlcnic_api_unlock(adapter);
3386                 return 1;
3387
3388         case QLCNIC_DEV_READY:
3389                 ret = qlcnic_check_idc_ver(adapter);
3390                 qlcnic_api_unlock(adapter);
3391                 return ret;
3392
3393         case QLCNIC_DEV_NEED_RESET:
3394                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3395                 QLC_DEV_SET_RST_RDY(val, portnum);
3396                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3397                 break;
3398
3399         case QLCNIC_DEV_NEED_QUISCENT:
3400                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3401                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
3402                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3403                 break;
3404
3405         case QLCNIC_DEV_FAILED:
3406                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
3407                 qlcnic_api_unlock(adapter);
3408                 return -1;
3409
3410         case QLCNIC_DEV_INITIALIZING:
3411         case QLCNIC_DEV_QUISCENT:
3412                 break;
3413         }
3414
3415         qlcnic_api_unlock(adapter);
3416
3417         do {
3418                 msleep(1000);
3419                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3420
3421                 if (prev_state == QLCNIC_DEV_QUISCENT)
3422                         continue;
3423         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
3424
3425         if (!dev_init_timeo) {
3426                 dev_err(&adapter->pdev->dev,
3427                         "Waiting for device to initialize timeout\n");
3428                 return -1;
3429         }
3430
3431         if (qlcnic_api_lock(adapter))
3432                 return -1;
3433
3434         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3435         QLC_DEV_CLR_RST_QSCNT(val, portnum);
3436         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3437
3438         ret = qlcnic_check_idc_ver(adapter);
3439         qlcnic_api_unlock(adapter);
3440
3441         return ret;
3442 }
3443
3444 static void
3445 qlcnic_fwinit_work(struct work_struct *work)
3446 {
3447         struct qlcnic_adapter *adapter = container_of(work,
3448                         struct qlcnic_adapter, fw_work.work);
3449         u32 dev_state = 0xf;
3450         u32 val;
3451
3452         if (qlcnic_api_lock(adapter))
3453                 goto err_ret;
3454
3455         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3456         if (dev_state == QLCNIC_DEV_QUISCENT ||
3457             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3458                 qlcnic_api_unlock(adapter);
3459                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
3460                                                 FW_POLL_DELAY * 2);
3461                 return;
3462         }
3463
3464         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
3465                 qlcnic_api_unlock(adapter);
3466                 goto wait_npar;
3467         }
3468
3469         if (dev_state == QLCNIC_DEV_INITIALIZING ||
3470             dev_state == QLCNIC_DEV_READY) {
3471                 dev_info(&adapter->pdev->dev, "Detected state change from "
3472                                 "DEV_NEED_RESET, skipping ack check\n");
3473                 goto skip_ack_check;
3474         }
3475
3476         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
3477                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
3478                                         adapter->reset_ack_timeo);
3479                 goto skip_ack_check;
3480         }
3481
3482         if (!qlcnic_check_drv_state(adapter)) {
3483 skip_ack_check:
3484                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3485
3486                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
3487                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3488                                             QLCNIC_DEV_INITIALIZING);
3489                         set_bit(__QLCNIC_START_FW, &adapter->state);
3490                         QLCDB(adapter, DRV, "Restarting fw\n");
3491                         qlcnic_idc_debug_info(adapter, 0);
3492                         val = QLC_SHARED_REG_RD32(adapter,
3493                                                   QLCNIC_CRB_DRV_STATE);
3494                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3495                         QLC_SHARED_REG_WR32(adapter,
3496                                             QLCNIC_CRB_DRV_STATE, val);
3497                 }
3498
3499                 qlcnic_api_unlock(adapter);
3500
3501                 rtnl_lock();
3502                 if (qlcnic_check_fw_dump_state(adapter) &&
3503                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3504                         QLCDB(adapter, DRV, "Take FW dump\n");
3505                         qlcnic_dump_fw(adapter);
3506                         adapter->flags |= QLCNIC_FW_HANG;
3507                 }
3508                 rtnl_unlock();
3509
3510                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
3511                 if (!adapter->nic_ops->start_firmware(adapter)) {
3512                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3513                         adapter->fw_wait_cnt = 0;
3514                         return;
3515                 }
3516                 goto err_ret;
3517         }
3518
3519         qlcnic_api_unlock(adapter);
3520
3521 wait_npar:
3522         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3523         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
3524
3525         switch (dev_state) {
3526         case QLCNIC_DEV_READY:
3527                 if (!qlcnic_start_firmware(adapter)) {
3528                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3529                         adapter->fw_wait_cnt = 0;
3530                         return;
3531                 }
3532         case QLCNIC_DEV_FAILED:
3533                 break;
3534         default:
3535                 qlcnic_schedule_work(adapter,
3536                         qlcnic_fwinit_work, FW_POLL_DELAY);
3537                 return;
3538         }
3539
3540 err_ret:
3541         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
3542                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
3543         netif_device_attach(adapter->netdev);
3544         qlcnic_clr_all_drv_state(adapter, 0);
3545 }
3546
3547 static void
3548 qlcnic_detach_work(struct work_struct *work)
3549 {
3550         struct qlcnic_adapter *adapter = container_of(work,
3551                         struct qlcnic_adapter, fw_work.work);
3552         struct net_device *netdev = adapter->netdev;
3553         u32 status;
3554
3555         netif_device_detach(netdev);
3556
3557         /* Dont grab rtnl lock during Quiscent mode */
3558         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3559                 if (netif_running(netdev))
3560                         __qlcnic_down(adapter, netdev);
3561         } else
3562                 qlcnic_down(adapter, netdev);
3563
3564         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3565
3566         if (status & QLCNIC_RCODE_FATAL_ERROR) {
3567                 dev_err(&adapter->pdev->dev,
3568                         "Detaching the device: peg halt status1=0x%x\n",
3569                                         status);
3570
3571                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
3572                         dev_err(&adapter->pdev->dev,
3573                         "On board active cooling fan failed. "
3574                                 "Device has been halted.\n");
3575                         dev_err(&adapter->pdev->dev,
3576                                 "Replace the adapter.\n");
3577                 }
3578
3579                 goto err_ret;
3580         }
3581
3582         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
3583                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
3584                         adapter->ahw->temp);
3585                 goto err_ret;
3586         }
3587
3588         /* Dont ack if this instance is the reset owner */
3589         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3590                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
3591                         dev_err(&adapter->pdev->dev,
3592                                 "Failed to set driver state,"
3593                                         "detaching the device.\n");
3594                         goto err_ret;
3595                 }
3596         }
3597
3598         adapter->fw_wait_cnt = 0;
3599
3600         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3601
3602         return;
3603
3604 err_ret:
3605         netif_device_attach(netdev);
3606         qlcnic_clr_all_drv_state(adapter, 1);
3607 }
3608
3609 /*Transit NPAR state to NON Operational */
3610 static void
3611 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3612 {
3613         u32 state;
3614
3615         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3616         if (state == QLCNIC_DEV_NPAR_NON_OPER)
3617                 return;
3618
3619         if (qlcnic_api_lock(adapter))
3620                 return;
3621         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3622                             QLCNIC_DEV_NPAR_NON_OPER);
3623         qlcnic_api_unlock(adapter);
3624 }
3625
3626 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter,
3627                                           u32 key)
3628 {
3629         u32 state, xg_val = 0, gb_val = 0;
3630
3631         qlcnic_xg_set_xg0_mask(xg_val);
3632         qlcnic_xg_set_xg1_mask(xg_val);
3633         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3634         qlcnic_gb_set_gb0_mask(gb_val);
3635         qlcnic_gb_set_gb1_mask(gb_val);
3636         qlcnic_gb_set_gb2_mask(gb_val);
3637         qlcnic_gb_set_gb3_mask(gb_val);
3638         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3639         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3640                                 " on all ports\n");
3641         adapter->need_fw_reset = 1;
3642
3643         if (qlcnic_api_lock(adapter))
3644                 return;
3645
3646         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3647
3648         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
3649                 netdev_err(adapter->netdev, "%s: Device is in non-operational state\n",
3650                            __func__);
3651                 qlcnic_api_unlock(adapter);
3652
3653                 return;
3654         }
3655
3656         if (state == QLCNIC_DEV_READY) {
3657                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3658                                     QLCNIC_DEV_NEED_RESET);
3659                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3660                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3661                 qlcnic_idc_debug_info(adapter, 0);
3662         }
3663
3664         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3665                             QLCNIC_DEV_NPAR_NON_OPER);
3666         qlcnic_api_unlock(adapter);
3667 }
3668
3669 /* Transit to NPAR READY state from NPAR NOT READY state */
3670 static void
3671 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3672 {
3673         if (qlcnic_api_lock(adapter))
3674                 return;
3675
3676         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3677                             QLCNIC_DEV_NPAR_OPER);
3678         QLCDB(adapter, DRV, "NPAR operational state set\n");
3679
3680         qlcnic_api_unlock(adapter);
3681 }
3682
3683 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3684                           work_func_t func, int delay)
3685 {
3686         if (test_bit(__QLCNIC_AER, &adapter->state))
3687                 return;
3688
3689         INIT_DELAYED_WORK(&adapter->fw_work, func);
3690         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3691                            round_jiffies_relative(delay));
3692 }
3693
3694 static void
3695 qlcnic_attach_work(struct work_struct *work)
3696 {
3697         struct qlcnic_adapter *adapter = container_of(work,
3698                                 struct qlcnic_adapter, fw_work.work);
3699         struct net_device *netdev = adapter->netdev;
3700         u32 npar_state;
3701
3702         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3703                 npar_state = QLC_SHARED_REG_RD32(adapter,
3704                                                  QLCNIC_CRB_DEV_NPAR_STATE);
3705                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3706                         qlcnic_clr_all_drv_state(adapter, 0);
3707                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3708                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
3709                                                         FW_POLL_DELAY);
3710                 else
3711                         goto attach;
3712                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3713                 return;
3714         }
3715 attach:
3716         qlcnic_dcb_get_info(adapter->dcb);
3717
3718         if (netif_running(netdev)) {
3719                 if (qlcnic_up(adapter, netdev))
3720                         goto done;
3721
3722                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3723         }
3724
3725 done:
3726         netif_device_attach(netdev);
3727         adapter->fw_fail_cnt = 0;
3728         adapter->flags &= ~QLCNIC_FW_HANG;
3729         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3730         if (adapter->portnum == 0)
3731                 qlcnic_set_drv_version(adapter);
3732
3733         if (!qlcnic_clr_drv_state(adapter))
3734                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3735                                                         FW_POLL_DELAY);
3736 }
3737
3738 static int
3739 qlcnic_check_health(struct qlcnic_adapter *adapter)
3740 {
3741         struct qlcnic_hardware_context *ahw = adapter->ahw;
3742         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
3743         u32 state = 0, heartbeat;
3744         u32 peg_status;
3745         int err = 0;
3746
3747         if (qlcnic_check_temp(adapter))
3748                 goto detach;
3749
3750         if (adapter->need_fw_reset)
3751                 qlcnic_dev_request_reset(adapter, 0);
3752
3753         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3754         if (state == QLCNIC_DEV_NEED_RESET) {
3755                 qlcnic_set_npar_non_operational(adapter);
3756                 adapter->need_fw_reset = 1;
3757         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3758                 goto detach;
3759
3760         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3761         if (heartbeat != adapter->heartbeat) {
3762                 adapter->heartbeat = heartbeat;
3763                 adapter->fw_fail_cnt = 0;
3764                 if (adapter->need_fw_reset)
3765                         goto detach;
3766
3767                 if (ahw->reset_context && qlcnic_auto_fw_reset)
3768                         qlcnic_reset_hw_context(adapter);
3769
3770                 return 0;
3771         }
3772
3773         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3774                 return 0;
3775
3776         adapter->flags |= QLCNIC_FW_HANG;
3777
3778         qlcnic_dev_request_reset(adapter, 0);
3779
3780         if (qlcnic_auto_fw_reset)
3781                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3782
3783         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3784         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3785         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3786                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3787                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3788                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3789                         "PEG_NET_4_PC: 0x%x\n",
3790                         peg_status,
3791                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3792                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3793                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3794                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3795                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3796                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3797         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3798                 dev_err(&adapter->pdev->dev,
3799                         "Firmware aborted with error code 0x00006700. "
3800                                 "Device is being reset.\n");
3801 detach:
3802         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3803                 QLCNIC_DEV_NEED_RESET;
3804
3805         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3806                                                       &adapter->state)) {
3807
3808                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3809                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3810         } else if (!qlcnic_auto_fw_reset && fw_dump->enable &&
3811                    adapter->flags & QLCNIC_FW_RESET_OWNER) {
3812                 qlcnic_dump_fw(adapter);
3813         }
3814
3815         return 1;
3816 }
3817
3818 void qlcnic_fw_poll_work(struct work_struct *work)
3819 {
3820         struct qlcnic_adapter *adapter = container_of(work,
3821                                 struct qlcnic_adapter, fw_work.work);
3822
3823         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3824                 goto reschedule;
3825
3826
3827         if (qlcnic_check_health(adapter))
3828                 return;
3829
3830         if (adapter->fhash.fnum)
3831                 qlcnic_prune_lb_filters(adapter);
3832
3833 reschedule:
3834         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3835 }
3836
3837 static int qlcnic_is_first_func(struct pci_dev *pdev)
3838 {
3839         struct pci_dev *oth_pdev;
3840         int val = pdev->devfn;
3841
3842         while (val-- > 0) {
3843                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3844                         (pdev->bus), pdev->bus->number,
3845                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3846                 if (!oth_pdev)
3847                         continue;
3848
3849                 if (oth_pdev->current_state != PCI_D3cold) {
3850                         pci_dev_put(oth_pdev);
3851                         return 0;
3852                 }
3853                 pci_dev_put(oth_pdev);
3854         }
3855         return 1;
3856 }
3857
3858 static int qlcnic_attach_func(struct pci_dev *pdev)
3859 {
3860         int err, first_func;
3861         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3862         struct net_device *netdev = adapter->netdev;
3863
3864         pdev->error_state = pci_channel_io_normal;
3865
3866         err = pci_enable_device(pdev);
3867         if (err)
3868                 return err;
3869
3870         pci_set_master(pdev);
3871         pci_restore_state(pdev);
3872
3873         first_func = qlcnic_is_first_func(pdev);
3874
3875         if (qlcnic_api_lock(adapter))
3876                 return -EINVAL;
3877
3878         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3879                 adapter->need_fw_reset = 1;
3880                 set_bit(__QLCNIC_START_FW, &adapter->state);
3881                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3882                                     QLCNIC_DEV_INITIALIZING);
3883                 QLCDB(adapter, DRV, "Restarting fw\n");
3884         }
3885         qlcnic_api_unlock(adapter);
3886
3887         err = qlcnic_start_firmware(adapter);
3888         if (err)
3889                 return err;
3890
3891         qlcnic_clr_drv_state(adapter);
3892         kfree(adapter->msix_entries);
3893         adapter->msix_entries = NULL;
3894         err = qlcnic_setup_intr(adapter);
3895
3896         if (err) {
3897                 kfree(adapter->msix_entries);
3898                 netdev_err(netdev, "failed to setup interrupt\n");
3899                 return err;
3900         }
3901
3902         if (netif_running(netdev)) {
3903                 err = qlcnic_attach(adapter);
3904                 if (err) {
3905                         qlcnic_clr_all_drv_state(adapter, 1);
3906                         clear_bit(__QLCNIC_AER, &adapter->state);
3907                         netif_device_attach(netdev);
3908                         return err;
3909                 }
3910
3911                 err = qlcnic_up(adapter, netdev);
3912                 if (err)
3913                         goto done;
3914
3915                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3916         }
3917  done:
3918         netif_device_attach(netdev);
3919         return err;
3920 }
3921
3922 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
3923                                                       pci_channel_state_t state)
3924 {
3925         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3926         struct net_device *netdev = adapter->netdev;
3927
3928         if (state == pci_channel_io_perm_failure)
3929                 return PCI_ERS_RESULT_DISCONNECT;
3930
3931         if (state == pci_channel_io_normal)
3932                 return PCI_ERS_RESULT_RECOVERED;
3933
3934         set_bit(__QLCNIC_AER, &adapter->state);
3935         netif_device_detach(netdev);
3936
3937         cancel_delayed_work_sync(&adapter->fw_work);
3938
3939         if (netif_running(netdev))
3940                 qlcnic_down(adapter, netdev);
3941
3942         qlcnic_detach(adapter);
3943         qlcnic_teardown_intr(adapter);
3944
3945         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3946
3947         pci_save_state(pdev);
3948         pci_disable_device(pdev);
3949
3950         return PCI_ERS_RESULT_NEED_RESET;
3951 }
3952
3953 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
3954 {
3955         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3956                                 PCI_ERS_RESULT_RECOVERED;
3957 }
3958
3959 static void qlcnic_82xx_io_resume(struct pci_dev *pdev)
3960 {
3961         u32 state;
3962         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3963
3964         pci_cleanup_aer_uncorrect_error_status(pdev);
3965         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3966         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3967                                                             &adapter->state))
3968                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3969                                      FW_POLL_DELAY);
3970 }
3971
3972 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3973                                                  pci_channel_state_t state)
3974 {
3975         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3976         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3977
3978         if (hw_ops->io_error_detected) {
3979                 return hw_ops->io_error_detected(pdev, state);
3980         } else {
3981                 dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
3982                 return PCI_ERS_RESULT_DISCONNECT;
3983         }
3984 }
3985
3986 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3987 {
3988         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3989         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3990
3991         if (hw_ops->io_slot_reset) {
3992                 return hw_ops->io_slot_reset(pdev);
3993         } else {
3994                 dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
3995                 return PCI_ERS_RESULT_DISCONNECT;
3996         }
3997 }
3998
3999 static void qlcnic_io_resume(struct pci_dev *pdev)
4000 {
4001         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
4002         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
4003
4004         if (hw_ops->io_resume)
4005                 hw_ops->io_resume(pdev);
4006         else
4007                 dev_err(&pdev->dev, "AER resume handler not registered.\n");
4008 }
4009
4010
4011 static int
4012 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
4013 {
4014         int err;
4015
4016         err = qlcnic_can_start_firmware(adapter);
4017         if (err)
4018                 return err;
4019
4020         err = qlcnic_check_npar_opertional(adapter);
4021         if (err)
4022                 return err;
4023
4024         err = qlcnic_initialize_nic(adapter);
4025         if (err)
4026                 return err;
4027
4028         qlcnic_check_options(adapter);
4029
4030         err = qlcnic_set_eswitch_port_config(adapter);
4031         if (err)
4032                 return err;
4033
4034         adapter->need_fw_reset = 0;
4035
4036         return err;
4037 }
4038
4039 int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt,
4040                           int queue_type)
4041 {
4042         struct net_device *netdev = adapter->netdev;
4043         u8 max_hw_rings = 0;
4044         char buf[8];
4045         int cur_rings;
4046
4047         if (queue_type == QLCNIC_RX_QUEUE) {
4048                 max_hw_rings = adapter->max_sds_rings;
4049                 cur_rings = adapter->drv_sds_rings;
4050                 strcpy(buf, "SDS");
4051         } else if (queue_type == QLCNIC_TX_QUEUE) {
4052                 max_hw_rings = adapter->max_tx_rings;
4053                 cur_rings = adapter->drv_tx_rings;
4054                 strcpy(buf, "Tx");
4055         }
4056
4057         if (!is_power_of_2(ring_cnt)) {
4058                 netdev_err(netdev, "%s rings value should be a power of 2\n",
4059                            buf);
4060                 return -EINVAL;
4061         }
4062
4063         if (qlcnic_82xx_check(adapter) && (queue_type == QLCNIC_TX_QUEUE) &&
4064             !qlcnic_check_multi_tx(adapter)) {
4065                         netdev_err(netdev, "No Multi Tx queue support\n");
4066                         return -EINVAL;
4067         }
4068
4069         if (ring_cnt > num_online_cpus()) {
4070                 netdev_err(netdev,
4071                            "%s value[%u] should not be higher than, number of online CPUs\n",
4072                            buf, num_online_cpus());
4073                 return -EINVAL;
4074         }
4075
4076         return 0;
4077 }
4078
4079 int qlcnic_setup_rings(struct qlcnic_adapter *adapter)
4080 {
4081         struct net_device *netdev = adapter->netdev;
4082         u8 tx_rings, rx_rings;
4083         int err;
4084
4085         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
4086                 return -EBUSY;
4087
4088         tx_rings = adapter->drv_tss_rings;
4089         rx_rings = adapter->drv_rss_rings;
4090
4091         netif_device_detach(netdev);
4092
4093         err = qlcnic_set_real_num_queues(adapter, tx_rings, rx_rings);
4094         if (err)
4095                 goto done;
4096
4097         if (netif_running(netdev))
4098                 __qlcnic_down(adapter, netdev);
4099
4100         qlcnic_detach(adapter);
4101
4102         if (qlcnic_83xx_check(adapter)) {
4103                 qlcnic_83xx_free_mbx_intr(adapter);
4104                 qlcnic_83xx_enable_mbx_poll(adapter);
4105         }
4106
4107         qlcnic_teardown_intr(adapter);
4108
4109         err = qlcnic_setup_intr(adapter);
4110         if (err) {
4111                 kfree(adapter->msix_entries);
4112                 netdev_err(netdev, "failed to setup interrupt\n");
4113                 return err;
4114         }
4115
4116         /* Check if we need to update real_num_{tx|rx}_queues because
4117          * qlcnic_setup_intr() may change Tx/Rx rings size
4118          */
4119         if ((tx_rings != adapter->drv_tx_rings) ||
4120             (rx_rings != adapter->drv_sds_rings)) {
4121                 err = qlcnic_set_real_num_queues(adapter,
4122                                                  adapter->drv_tx_rings,
4123                                                  adapter->drv_sds_rings);
4124                 if (err)
4125                         goto done;
4126         }
4127
4128         if (qlcnic_83xx_check(adapter)) {
4129                 qlcnic_83xx_initialize_nic(adapter, 1);
4130                 err = qlcnic_83xx_setup_mbx_intr(adapter);
4131                 qlcnic_83xx_disable_mbx_poll(adapter);
4132                 if (err) {
4133                         dev_err(&adapter->pdev->dev,
4134                                 "failed to setup mbx interrupt\n");
4135                         goto done;
4136                 }
4137         }
4138
4139         if (netif_running(netdev)) {
4140                 err = qlcnic_attach(adapter);
4141                 if (err)
4142                         goto done;
4143                 err = __qlcnic_up(adapter, netdev);
4144                 if (err)
4145                         goto done;
4146                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
4147         }
4148 done:
4149         netif_device_attach(netdev);
4150         clear_bit(__QLCNIC_RESETTING, &adapter->state);
4151         return err;
4152 }
4153
4154 #ifdef CONFIG_INET
4155
4156 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4157
4158 static void
4159 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4160                         struct net_device *dev, unsigned long event)
4161 {
4162         struct in_device *indev;
4163
4164         indev = in_dev_get(dev);
4165         if (!indev)
4166                 return;
4167
4168         for_ifa(indev) {
4169                 switch (event) {
4170                 case NETDEV_UP:
4171                         qlcnic_config_ipaddr(adapter,
4172                                         ifa->ifa_address, QLCNIC_IP_UP);
4173                         break;
4174                 case NETDEV_DOWN:
4175                         qlcnic_config_ipaddr(adapter,
4176                                         ifa->ifa_address, QLCNIC_IP_DOWN);
4177                         break;
4178                 default:
4179                         break;
4180                 }
4181         } endfor_ifa(indev);
4182
4183         in_dev_put(indev);
4184 }
4185
4186 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4187 {
4188         struct qlcnic_adapter *adapter = netdev_priv(netdev);
4189         struct net_device *dev;
4190         u16 vid;
4191
4192         qlcnic_config_indev_addr(adapter, netdev, event);
4193
4194         rcu_read_lock();
4195         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
4196                 dev = __vlan_find_dev_deep_rcu(netdev, htons(ETH_P_8021Q), vid);
4197                 if (!dev)
4198                         continue;
4199                 qlcnic_config_indev_addr(adapter, dev, event);
4200         }
4201         rcu_read_unlock();
4202 }
4203
4204 static int qlcnic_netdev_event(struct notifier_block *this,
4205                                  unsigned long event, void *ptr)
4206 {
4207         struct qlcnic_adapter *adapter;
4208         struct net_device *dev = netdev_notifier_info_to_dev(ptr);
4209
4210 recheck:
4211         if (dev == NULL)
4212                 goto done;
4213
4214         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4215                 dev = vlan_dev_real_dev(dev);
4216                 goto recheck;
4217         }
4218
4219         if (!is_qlcnic_netdev(dev))
4220                 goto done;
4221
4222         adapter = netdev_priv(dev);
4223
4224         if (!adapter)
4225                 goto done;
4226
4227         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4228                 goto done;
4229
4230         qlcnic_config_indev_addr(adapter, dev, event);
4231 done:
4232         return NOTIFY_DONE;
4233 }
4234
4235 static int
4236 qlcnic_inetaddr_event(struct notifier_block *this,
4237                 unsigned long event, void *ptr)
4238 {
4239         struct qlcnic_adapter *adapter;
4240         struct net_device *dev;
4241
4242         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4243
4244         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4245
4246 recheck:
4247         if (dev == NULL)
4248                 goto done;
4249
4250         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4251                 dev = vlan_dev_real_dev(dev);
4252                 goto recheck;
4253         }
4254
4255         if (!is_qlcnic_netdev(dev))
4256                 goto done;
4257
4258         adapter = netdev_priv(dev);
4259
4260         if (!adapter)
4261                 goto done;
4262
4263         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4264                 goto done;
4265
4266         switch (event) {
4267         case NETDEV_UP:
4268                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4269
4270                 break;
4271         case NETDEV_DOWN:
4272                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4273
4274                 break;
4275         default:
4276                 break;
4277         }
4278
4279 done:
4280         return NOTIFY_DONE;
4281 }
4282
4283 static struct notifier_block    qlcnic_netdev_cb = {
4284         .notifier_call = qlcnic_netdev_event,
4285 };
4286
4287 static struct notifier_block qlcnic_inetaddr_cb = {
4288         .notifier_call = qlcnic_inetaddr_event,
4289 };
4290 #else
4291 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4292 { }
4293 #endif
4294 static const struct pci_error_handlers qlcnic_err_handler = {
4295         .error_detected = qlcnic_io_error_detected,
4296         .slot_reset = qlcnic_io_slot_reset,
4297         .resume = qlcnic_io_resume,
4298 };
4299
4300 static struct pci_driver qlcnic_driver = {
4301         .name = qlcnic_driver_name,
4302         .id_table = qlcnic_pci_tbl,
4303         .probe = qlcnic_probe,
4304         .remove = qlcnic_remove,
4305 #ifdef CONFIG_PM
4306         .suspend = qlcnic_suspend,
4307         .resume = qlcnic_resume,
4308 #endif
4309         .shutdown = qlcnic_shutdown,
4310         .err_handler = &qlcnic_err_handler,
4311 #ifdef CONFIG_QLCNIC_SRIOV
4312         .sriov_configure = qlcnic_pci_sriov_configure,
4313 #endif
4314
4315 };
4316
4317 static int __init qlcnic_init_module(void)
4318 {
4319         int ret;
4320
4321         printk(KERN_INFO "%s\n", qlcnic_driver_string);
4322
4323 #ifdef CONFIG_INET
4324         register_netdevice_notifier(&qlcnic_netdev_cb);
4325         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4326 #endif
4327
4328         ret = pci_register_driver(&qlcnic_driver);
4329         if (ret) {
4330 #ifdef CONFIG_INET
4331                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4332                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4333 #endif
4334         }
4335
4336         return ret;
4337 }
4338
4339 module_init(qlcnic_init_module);
4340
4341 static void __exit qlcnic_exit_module(void)
4342 {
4343         pci_unregister_driver(&qlcnic_driver);
4344
4345 #ifdef CONFIG_INET
4346         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4347         unregister_netdevice_notifier(&qlcnic_netdev_cb);
4348 #endif
4349 }
4350
4351 module_exit(qlcnic_exit_module);