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 #include <net/vxlan.h>
  20
  21 #include "qlcnic.h"
  22 #include "qlcnic_sriov.h"
  23 #include "qlcnic_hw.h"
  24
  25 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
  26 MODULE_LICENSE("GPL");
  27 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
  28 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
  29
  30 char qlcnic_driver_name[] = "qlcnic";
  31 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
  32         "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
  33
  34 static int qlcnic_mac_learn;
  35 module_param(qlcnic_mac_learn, int, 0444);
  36 MODULE_PARM_DESC(qlcnic_mac_learn,
  37                  "Mac Filter (0=learning is disabled, 1=Driver learning is enabled, 2=FDB learning is enabled)");
  38
  39 int qlcnic_use_msi = 1;
  40 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled)");
  41 module_param_named(use_msi, qlcnic_use_msi, int, 0444);
  42
  43 int qlcnic_use_msi_x = 1;
  44 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled)");
  45 module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444);
  46
  47 int qlcnic_auto_fw_reset = 1;
  48 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled)");
  49 module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644);
  50
  51 int qlcnic_load_fw_file;
  52 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)");
  53 module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);
  54
  55 static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
  56 static void qlcnic_remove(struct pci_dev *pdev);
  57 static int qlcnic_open(struct net_device *netdev);
  58 static int qlcnic_close(struct net_device *netdev);
  59 static void qlcnic_tx_timeout(struct net_device *netdev);
  60 static void qlcnic_attach_work(struct work_struct *work);
  61 static void qlcnic_fwinit_work(struct work_struct *work);
  62 #ifdef CONFIG_NET_POLL_CONTROLLER
  63 static void qlcnic_poll_controller(struct net_device *netdev);
  64 #endif
  65
  66 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
  67 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
  68
  69 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
  70 static irqreturn_t qlcnic_intr(int irq, void *data);
  71 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
  72 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
  73 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data);
  74
  75 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
  76 static int qlcnic_start_firmware(struct qlcnic_adapter *);
  77
  78 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
  79 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
  80 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
  81 static int qlcnic_vlan_rx_add(struct net_device *, __be16, u16);
  82 static int qlcnic_vlan_rx_del(struct net_device *, __be16, u16);
  83
  84 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *);
  85 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *, u32);
  86 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *);
  87 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *);
  88 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *);
  89 static void qlcnic_82xx_io_resume(struct pci_dev *);
  90 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *);
  91 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *,
  92                                                       pci_channel_state_t);
  93 static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
  94 {
  95         struct qlcnic_hardware_context *ahw = adapter->ahw;
  96
  97         if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
  98                 return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
  99         else
 100                 return 1;
 101 }
 102
 103 /*  PCI Device ID Table  */
 104 #define ENTRY(device) \
 105         {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
 106         .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
 107
 108 static const struct pci_device_id qlcnic_pci_tbl[] = {
 109         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
 110         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
 111         ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE834X),
 112         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE8830),
 113         ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE8C30),
 114         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE844X),
 115         ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE844X),
 116         {0,}
 117 };
 118
 119 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
 120
 121
 122 inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
 123 {
 124         writel(tx_ring->producer, tx_ring->crb_cmd_producer);
 125 }
 126
 127 static const u32 msi_tgt_status[8] = {
 128         ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
 129         ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
 130         ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
 131         ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
 132 };
 133
 134 static const u32 qlcnic_reg_tbl[] = {
 135         0x1B20A8,       /* PEG_HALT_STAT1 */
 136         0x1B20AC,       /* PEG_HALT_STAT2 */
 137         0x1B20B0,       /* FW_HEARTBEAT */
 138         0x1B2100,       /* LOCK ID */
 139         0x1B2128,       /* FW_CAPABILITIES */
 140         0x1B2138,       /* drv active */
 141         0x1B2140,       /* dev state */
 142         0x1B2144,       /* drv state */
 143         0x1B2148,       /* drv scratch */
 144         0x1B214C,       /* dev partition info */
 145         0x1B2174,       /* drv idc ver */
 146         0x1B2150,       /* fw version major */
 147         0x1B2154,       /* fw version minor */
 148         0x1B2158,       /* fw version sub */
 149         0x1B219C,       /* npar state */
 150         0x1B21FC,       /* FW_IMG_VALID */
 151         0x1B2250,       /* CMD_PEG_STATE */
 152         0x1B233C,       /* RCV_PEG_STATE */
 153         0x1B23B4,       /* ASIC TEMP */
 154         0x1B216C,       /* FW api */
 155         0x1B2170,       /* drv op mode */
 156         0x13C010,       /* flash lock */
 157         0x13C014,       /* flash unlock */
 158 };
 159
 160 static const struct qlcnic_board_info qlcnic_boards[] = {
 161         { PCI_VENDOR_ID_QLOGIC,
 162           PCI_DEVICE_ID_QLOGIC_QLE844X,
 163           0x0,
 164           0x0,
 165           "8400 series 10GbE Converged Network Adapter (TCP/IP Networking)" },
 166         { PCI_VENDOR_ID_QLOGIC,
 167           PCI_DEVICE_ID_QLOGIC_QLE834X,
 168           PCI_VENDOR_ID_QLOGIC,
 169           0x24e,
 170           "8300 Series Dual Port 10GbE Converged Network Adapter "
 171           "(TCP/IP Networking)" },
 172         { PCI_VENDOR_ID_QLOGIC,
 173           PCI_DEVICE_ID_QLOGIC_QLE834X,
 174           PCI_VENDOR_ID_QLOGIC,
 175           0x243,
 176           "8300 Series Single Port 10GbE Converged Network Adapter "
 177           "(TCP/IP Networking)" },
 178         { PCI_VENDOR_ID_QLOGIC,
 179           PCI_DEVICE_ID_QLOGIC_QLE834X,
 180           PCI_VENDOR_ID_QLOGIC,
 181           0x24a,
 182           "8300 Series Dual Port 10GbE Converged Network Adapter "
 183           "(TCP/IP Networking)" },
 184         { PCI_VENDOR_ID_QLOGIC,
 185           PCI_DEVICE_ID_QLOGIC_QLE834X,
 186           PCI_VENDOR_ID_QLOGIC,
 187           0x246,
 188           "8300 Series Dual Port 10GbE Converged Network Adapter "
 189           "(TCP/IP Networking)" },
 190         { PCI_VENDOR_ID_QLOGIC,
 191           PCI_DEVICE_ID_QLOGIC_QLE834X,
 192           PCI_VENDOR_ID_QLOGIC,
 193           0x252,
 194           "8300 Series Dual Port 10GbE Converged Network Adapter "
 195           "(TCP/IP Networking)" },
 196         { PCI_VENDOR_ID_QLOGIC,
 197           PCI_DEVICE_ID_QLOGIC_QLE834X,
 198           PCI_VENDOR_ID_QLOGIC,
 199           0x26e,
 200           "8300 Series Dual Port 10GbE Converged Network Adapter "
 201           "(TCP/IP Networking)" },
 202         { PCI_VENDOR_ID_QLOGIC,
 203           PCI_DEVICE_ID_QLOGIC_QLE834X,
 204           PCI_VENDOR_ID_QLOGIC,
 205           0x260,
 206           "8300 Series Dual Port 10GbE Converged Network Adapter "
 207           "(TCP/IP Networking)" },
 208         { PCI_VENDOR_ID_QLOGIC,
 209           PCI_DEVICE_ID_QLOGIC_QLE834X,
 210           PCI_VENDOR_ID_QLOGIC,
 211           0x266,
 212           "8300 Series Single Port 10GbE Converged Network Adapter "
 213           "(TCP/IP Networking)" },
 214         { PCI_VENDOR_ID_QLOGIC,
 215           PCI_DEVICE_ID_QLOGIC_QLE834X,
 216           PCI_VENDOR_ID_QLOGIC,
 217           0x269,
 218           "8300 Series Dual Port 10GbE Converged Network Adapter "
 219           "(TCP/IP Networking)" },
 220         { PCI_VENDOR_ID_QLOGIC,
 221           PCI_DEVICE_ID_QLOGIC_QLE834X,
 222           PCI_VENDOR_ID_QLOGIC,
 223           0x271,
 224           "8300 Series Dual Port 10GbE Converged Network Adapter "
 225           "(TCP/IP Networking)" },
 226         { PCI_VENDOR_ID_QLOGIC,
 227           PCI_DEVICE_ID_QLOGIC_QLE834X,
 228           0x0, 0x0, "8300 Series 1/10GbE Controller" },
 229         { PCI_VENDOR_ID_QLOGIC,
 230           PCI_DEVICE_ID_QLOGIC_QLE8830,
 231           0x0,
 232           0x0,
 233           "8830 Series 1/10GbE Controller" },
 234         { PCI_VENDOR_ID_QLOGIC,
 235           PCI_DEVICE_ID_QLOGIC_QLE824X,
 236           PCI_VENDOR_ID_QLOGIC,
 237           0x203,
 238           "8200 Series Single Port 10GbE Converged Network Adapter"
 239           "(TCP/IP Networking)" },
 240         { PCI_VENDOR_ID_QLOGIC,
 241           PCI_DEVICE_ID_QLOGIC_QLE824X,
 242           PCI_VENDOR_ID_QLOGIC,
 243           0x207,
 244           "8200 Series Dual Port 10GbE Converged Network Adapter"
 245           "(TCP/IP Networking)" },
 246         { PCI_VENDOR_ID_QLOGIC,
 247           PCI_DEVICE_ID_QLOGIC_QLE824X,
 248           PCI_VENDOR_ID_QLOGIC,
 249           0x20b,
 250           "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter" },
 251         { PCI_VENDOR_ID_QLOGIC,
 252           PCI_DEVICE_ID_QLOGIC_QLE824X,
 253           PCI_VENDOR_ID_QLOGIC,
 254           0x20c,
 255           "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter" },
 256         { PCI_VENDOR_ID_QLOGIC,
 257           PCI_DEVICE_ID_QLOGIC_QLE824X,
 258           PCI_VENDOR_ID_QLOGIC,
 259           0x20f,
 260           "3200 Series Single Port 10Gb Intelligent Ethernet Adapter" },
 261         { PCI_VENDOR_ID_QLOGIC,
 262           PCI_DEVICE_ID_QLOGIC_QLE824X,
 263           0x103c, 0x3733,
 264           "NC523SFP 10Gb 2-port Server Adapter" },
 265         { PCI_VENDOR_ID_QLOGIC,
 266           PCI_DEVICE_ID_QLOGIC_QLE824X,
 267           0x103c, 0x3346,
 268           "CN1000Q Dual Port Converged Network Adapter" },
 269         { PCI_VENDOR_ID_QLOGIC,
 270           PCI_DEVICE_ID_QLOGIC_QLE824X,
 271           PCI_VENDOR_ID_QLOGIC,
 272           0x210,
 273           "QME8242-k 10GbE Dual Port Mezzanine Card" },
 274         { PCI_VENDOR_ID_QLOGIC,
 275           PCI_DEVICE_ID_QLOGIC_QLE824X,
 276           0x0, 0x0, "cLOM8214 1/10GbE Controller" },
 277 };
 278
 279 #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)
 280
 281 static const
 282 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
 283
 284 int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
 285 {
 286         int size = sizeof(struct qlcnic_host_sds_ring) * count;
 287
 288         recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
 289
 290         return recv_ctx->sds_rings == NULL;
 291 }
 292
 293 void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
 294 {
 295         kfree(recv_ctx->sds_rings);
 296         recv_ctx->sds_rings = NULL;
 297 }
 298
 299 int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
 300 {
 301         struct net_device *netdev = adapter->netdev;
 302         struct pci_dev *pdev = adapter->pdev;
 303         u8 mac_addr[ETH_ALEN];
 304         int ret;
 305
 306         ret = qlcnic_get_mac_address(adapter, mac_addr,
 307                                      adapter->ahw->pci_func);
 308         if (ret)
 309                 return ret;
 310
 311         memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
 312         memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
 313
 314         /* set station address */
 315
 316         if (!is_valid_ether_addr(netdev->dev_addr))
 317                 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
 318                                         netdev->dev_addr);
 319
 320         return 0;
 321 }
 322
 323 static void qlcnic_delete_adapter_mac(struct qlcnic_adapter *adapter)
 324 {
 325         struct qlcnic_mac_vlan_list *cur;
 326         struct list_head *head;
 327
 328         list_for_each(head, &adapter->mac_list) {
 329                 cur = list_entry(head, struct qlcnic_mac_vlan_list, list);
 330                 if (ether_addr_equal_unaligned(adapter->mac_addr, cur->mac_addr)) {
 331                         qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
 332                                                   0, QLCNIC_MAC_DEL);
 333                         list_del(&cur->list);
 334                         kfree(cur);
 335                         return;
 336                 }
 337         }
 338 }
 339
 340 static int qlcnic_set_mac(struct net_device *netdev, void *p)
 341 {
 342         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 343         struct sockaddr *addr = p;
 344
 345         if (qlcnic_sriov_vf_check(adapter))
 346                 return -EINVAL;
 347
 348         if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
 349                 return -EOPNOTSUPP;
 350
 351         if (!is_valid_ether_addr(addr->sa_data))
 352                 return -EINVAL;
 353
 354         if (ether_addr_equal_unaligned(adapter->mac_addr, addr->sa_data) &&
 355             ether_addr_equal_unaligned(netdev->dev_addr, addr->sa_data))
 356                 return 0;
 357
 358         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 359                 netif_device_detach(netdev);
 360                 qlcnic_napi_disable(adapter);
 361         }
 362
 363         qlcnic_delete_adapter_mac(adapter);
 364         memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
 365         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 366         qlcnic_set_multi(adapter->netdev);
 367
 368         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 369                 netif_device_attach(netdev);
 370                 qlcnic_napi_enable(adapter);
 371         }
 372         return 0;
 373 }
 374
 375 static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
 376                         struct net_device *netdev,
 377                         const unsigned char *addr, u16 vid)
 378 {
 379         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 380         int err = -EOPNOTSUPP;
 381
 382         if (!adapter->fdb_mac_learn)
 383                 return ndo_dflt_fdb_del(ndm, tb, netdev, addr, vid);
 384
 385         if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
 386             qlcnic_sriov_check(adapter)) {
 387                 if (is_unicast_ether_addr(addr)) {
 388                         err = dev_uc_del(netdev, addr);
 389                         if (!err)
 390                                 err = qlcnic_nic_del_mac(adapter, addr);
 391                 } else if (is_multicast_ether_addr(addr)) {
 392                         err = dev_mc_del(netdev, addr);
 393                 } else {
 394                         err =  -EINVAL;
 395                 }
 396         }
 397         return err;
 398 }
 399
 400 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 401                         struct net_device *netdev,
 402                         const unsigned char *addr, u16 vid, u16 flags)
 403 {
 404         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 405         int err = 0;
 406
 407         if (!adapter->fdb_mac_learn)
 408                 return ndo_dflt_fdb_add(ndm, tb, netdev, addr, vid, flags);
 409
 410         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) &&
 411             !qlcnic_sriov_check(adapter)) {
 412                 pr_info("%s: FDB e-switch is not enabled\n", __func__);
 413                 return -EOPNOTSUPP;
 414         }
 415
 416         if (ether_addr_equal(addr, adapter->mac_addr))
 417                 return err;
 418
 419         if (is_unicast_ether_addr(addr)) {
 420                 if (netdev_uc_count(netdev) < adapter->ahw->max_uc_count)
 421                         err = dev_uc_add_excl(netdev, addr);
 422                 else
 423                         err = -ENOMEM;
 424         } else if (is_multicast_ether_addr(addr)) {
 425                 err = dev_mc_add_excl(netdev, addr);
 426         } else {
 427                 err = -EINVAL;
 428         }
 429
 430         return err;
 431 }
 432
 433 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
 434                         struct net_device *netdev,
 435                         struct net_device *filter_dev, int *idx)
 436 {
 437         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 438         int err = 0;
 439
 440         if (!adapter->fdb_mac_learn)
 441                 return ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
 442
 443         if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
 444             qlcnic_sriov_check(adapter))
 445                 err = ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
 446
 447         return err;
 448 }
 449
 450 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
 451 {
 452         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
 453                 usleep_range(10000, 11000);
 454
 455         if (!adapter->fw_work.work.func)
 456                 return;
 457
 458         cancel_delayed_work_sync(&adapter->fw_work);
 459 }
 460
 461 static int qlcnic_get_phys_port_id(struct net_device *netdev,
 462                                    struct netdev_phys_item_id *ppid)
 463 {
 464         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 465         struct qlcnic_hardware_context *ahw = adapter->ahw;
 466
 467         if (!(adapter->flags & QLCNIC_HAS_PHYS_PORT_ID))
 468                 return -EOPNOTSUPP;
 469
 470         ppid->id_len = sizeof(ahw->phys_port_id);
 471         memcpy(ppid->id, ahw->phys_port_id, ppid->id_len);
 472
 473         return 0;
 474 }
 475
 476 static void qlcnic_add_vxlan_port(struct net_device *netdev,
 477                                   struct udp_tunnel_info *ti)
 478 {
 479         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 480         struct qlcnic_hardware_context *ahw = adapter->ahw;
 481
 482         if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
 483                 return;
 484
 485         /* Adapter supports only one VXLAN port. Use very first port
 486          * for enabling offload
 487          */
 488         if (!qlcnic_encap_rx_offload(adapter))
 489                 return;
 490         if (!ahw->vxlan_port_count) {
 491                 ahw->vxlan_port_count = 1;
 492                 ahw->vxlan_port = ntohs(ti->port);
 493                 adapter->flags |= QLCNIC_ADD_VXLAN_PORT;
 494                 return;
 495         }
 496         if (ahw->vxlan_port == ntohs(ti->port))
 497                 ahw->vxlan_port_count++;
 498
 499 }
 500
 501 static void qlcnic_del_vxlan_port(struct net_device *netdev,
 502                                   struct udp_tunnel_info *ti)
 503 {
 504         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 505         struct qlcnic_hardware_context *ahw = adapter->ahw;
 506
 507         if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
 508                 return;
 509
 510         if (!qlcnic_encap_rx_offload(adapter) || !ahw->vxlan_port_count ||
 511             (ahw->vxlan_port != ntohs(ti->port)))
 512                 return;
 513
 514         ahw->vxlan_port_count--;
 515         if (!ahw->vxlan_port_count)
 516                 adapter->flags |= QLCNIC_DEL_VXLAN_PORT;
 517 }
 518
 519 static netdev_features_t qlcnic_features_check(struct sk_buff *skb,
 520                                                struct net_device *dev,
 521                                                netdev_features_t features)
 522 {
 523         features = vlan_features_check(skb, features);
 524         return vxlan_features_check(skb, features);
 525 }
 526
 527 static const struct net_device_ops qlcnic_netdev_ops = {
 528         .ndo_open          = qlcnic_open,
 529         .ndo_stop          = qlcnic_close,
 530         .ndo_start_xmit    = qlcnic_xmit_frame,
 531         .ndo_get_stats     = qlcnic_get_stats,
 532         .ndo_validate_addr = eth_validate_addr,
 533         .ndo_set_rx_mode   = qlcnic_set_multi,
 534         .ndo_set_mac_address    = qlcnic_set_mac,
 535         .ndo_change_mtu    = qlcnic_change_mtu,
 536         .ndo_fix_features  = qlcnic_fix_features,
 537         .ndo_set_features  = qlcnic_set_features,
 538         .ndo_tx_timeout    = qlcnic_tx_timeout,
 539         .ndo_vlan_rx_add_vid    = qlcnic_vlan_rx_add,
 540         .ndo_vlan_rx_kill_vid   = qlcnic_vlan_rx_del,
 541         .ndo_fdb_add            = qlcnic_fdb_add,
 542         .ndo_fdb_del            = qlcnic_fdb_del,
 543         .ndo_fdb_dump           = qlcnic_fdb_dump,
 544         .ndo_get_phys_port_id   = qlcnic_get_phys_port_id,
 545         .ndo_udp_tunnel_add     = qlcnic_add_vxlan_port,
 546         .ndo_udp_tunnel_del     = qlcnic_del_vxlan_port,
 547         .ndo_features_check     = qlcnic_features_check,
 548 #ifdef CONFIG_NET_POLL_CONTROLLER
 549         .ndo_poll_controller = qlcnic_poll_controller,
 550 #endif
 551 #ifdef CONFIG_QLCNIC_SRIOV
 552         .ndo_set_vf_mac         = qlcnic_sriov_set_vf_mac,
 553         .ndo_set_vf_rate        = qlcnic_sriov_set_vf_tx_rate,
 554         .ndo_get_vf_config      = qlcnic_sriov_get_vf_config,
 555         .ndo_set_vf_vlan        = qlcnic_sriov_set_vf_vlan,
 556         .ndo_set_vf_spoofchk    = qlcnic_sriov_set_vf_spoofchk,
 557 #endif
 558 };
 559
 560 static const struct net_device_ops qlcnic_netdev_failed_ops = {
 561         .ndo_open          = qlcnic_open,
 562 };
 563
 564 static struct qlcnic_nic_template qlcnic_ops = {
 565         .config_bridged_mode    = qlcnic_config_bridged_mode,
 566         .config_led             = qlcnic_82xx_config_led,
 567         .start_firmware         = qlcnic_82xx_start_firmware,
 568         .request_reset          = qlcnic_82xx_dev_request_reset,
 569         .cancel_idc_work        = qlcnic_82xx_cancel_idc_work,
 570         .napi_add               = qlcnic_82xx_napi_add,
 571         .napi_del               = qlcnic_82xx_napi_del,
 572         .config_ipaddr          = qlcnic_82xx_config_ipaddr,
 573         .shutdown               = qlcnic_82xx_shutdown,
 574         .resume                 = qlcnic_82xx_resume,
 575         .clear_legacy_intr      = qlcnic_82xx_clear_legacy_intr,
 576 };
 577
 578 struct qlcnic_nic_template qlcnic_vf_ops = {
 579         .config_bridged_mode    = qlcnicvf_config_bridged_mode,
 580         .config_led             = qlcnicvf_config_led,
 581         .start_firmware         = qlcnicvf_start_firmware
 582 };
 583
 584 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
 585         .read_crb                       = qlcnic_82xx_read_crb,
 586         .write_crb                      = qlcnic_82xx_write_crb,
 587         .read_reg                       = qlcnic_82xx_hw_read_wx_2M,
 588         .write_reg                      = qlcnic_82xx_hw_write_wx_2M,
 589         .get_mac_address                = qlcnic_82xx_get_mac_address,
 590         .setup_intr                     = qlcnic_82xx_setup_intr,
 591         .alloc_mbx_args                 = qlcnic_82xx_alloc_mbx_args,
 592         .mbx_cmd                        = qlcnic_82xx_issue_cmd,
 593         .get_func_no                    = qlcnic_82xx_get_func_no,
 594         .api_lock                       = qlcnic_82xx_api_lock,
 595         .api_unlock                     = qlcnic_82xx_api_unlock,
 596         .add_sysfs                      = qlcnic_82xx_add_sysfs,
 597         .remove_sysfs                   = qlcnic_82xx_remove_sysfs,
 598         .process_lb_rcv_ring_diag       = qlcnic_82xx_process_rcv_ring_diag,
 599         .create_rx_ctx                  = qlcnic_82xx_fw_cmd_create_rx_ctx,
 600         .create_tx_ctx                  = qlcnic_82xx_fw_cmd_create_tx_ctx,
 601         .del_rx_ctx                     = qlcnic_82xx_fw_cmd_del_rx_ctx,
 602         .del_tx_ctx                     = qlcnic_82xx_fw_cmd_del_tx_ctx,
 603         .setup_link_event               = qlcnic_82xx_linkevent_request,
 604         .get_nic_info                   = qlcnic_82xx_get_nic_info,
 605         .get_pci_info                   = qlcnic_82xx_get_pci_info,
 606         .set_nic_info                   = qlcnic_82xx_set_nic_info,
 607         .change_macvlan                 = qlcnic_82xx_sre_macaddr_change,
 608         .napi_enable                    = qlcnic_82xx_napi_enable,
 609         .napi_disable                   = qlcnic_82xx_napi_disable,
 610         .config_intr_coal               = qlcnic_82xx_config_intr_coalesce,
 611         .config_rss                     = qlcnic_82xx_config_rss,
 612         .config_hw_lro                  = qlcnic_82xx_config_hw_lro,
 613         .config_loopback                = qlcnic_82xx_set_lb_mode,
 614         .clear_loopback                 = qlcnic_82xx_clear_lb_mode,
 615         .config_promisc_mode            = qlcnic_82xx_nic_set_promisc,
 616         .change_l2_filter               = qlcnic_82xx_change_filter,
 617         .get_board_info                 = qlcnic_82xx_get_board_info,
 618         .set_mac_filter_count           = qlcnic_82xx_set_mac_filter_count,
 619         .free_mac_list                  = qlcnic_82xx_free_mac_list,
 620         .read_phys_port_id              = qlcnic_82xx_read_phys_port_id,
 621         .io_error_detected              = qlcnic_82xx_io_error_detected,
 622         .io_slot_reset                  = qlcnic_82xx_io_slot_reset,
 623         .io_resume                      = qlcnic_82xx_io_resume,
 624         .get_beacon_state               = qlcnic_82xx_get_beacon_state,
 625         .enable_sds_intr                = qlcnic_82xx_enable_sds_intr,
 626         .disable_sds_intr               = qlcnic_82xx_disable_sds_intr,
 627         .enable_tx_intr                 = qlcnic_82xx_enable_tx_intr,
 628         .disable_tx_intr                = qlcnic_82xx_disable_tx_intr,
 629         .get_saved_state                = qlcnic_82xx_get_saved_state,
 630         .set_saved_state                = qlcnic_82xx_set_saved_state,
 631         .cache_tmpl_hdr_values          = qlcnic_82xx_cache_tmpl_hdr_values,
 632         .get_cap_size                   = qlcnic_82xx_get_cap_size,
 633         .set_sys_info                   = qlcnic_82xx_set_sys_info,
 634         .store_cap_mask                 = qlcnic_82xx_store_cap_mask,
 635         .encap_rx_offload               = qlcnic_82xx_encap_rx_offload,
 636         .encap_tx_offload               = qlcnic_82xx_encap_tx_offload,
 637 };
 638
 639 static int qlcnic_check_multi_tx_capability(struct qlcnic_adapter *adapter)
 640 {
 641         struct qlcnic_hardware_context *ahw = adapter->ahw;
 642
 643         if (qlcnic_82xx_check(adapter) &&
 644             (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_MULTI_TX)) {
 645                 test_and_set_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
 646                 return 0;
 647         } else {
 648                 return 1;
 649         }
 650 }
 651
 652 static int qlcnic_max_rings(struct qlcnic_adapter *adapter, u8 ring_cnt,
 653                             int queue_type)
 654 {
 655         int num_rings, max_rings = QLCNIC_MAX_SDS_RINGS;
 656
 657         if (queue_type == QLCNIC_RX_QUEUE)
 658                 max_rings = adapter->max_sds_rings;
 659         else if (queue_type == QLCNIC_TX_QUEUE)
 660                 max_rings = adapter->max_tx_rings;
 661
 662         num_rings = rounddown_pow_of_two(min_t(int, num_online_cpus(),
 663                                               max_rings));
 664
 665         if (ring_cnt > num_rings)
 666                 return num_rings;
 667         else
 668                 return ring_cnt;
 669 }
 670
 671 void qlcnic_set_tx_ring_count(struct qlcnic_adapter *adapter, u8 tx_cnt)
 672 {
 673         /* 83xx adapter does not have max_tx_rings intialized in probe */
 674         if (adapter->max_tx_rings)
 675                 adapter->drv_tx_rings = qlcnic_max_rings(adapter, tx_cnt,
 676                                                          QLCNIC_TX_QUEUE);
 677         else
 678                 adapter->drv_tx_rings = tx_cnt;
 679 }
 680
 681 void qlcnic_set_sds_ring_count(struct qlcnic_adapter *adapter, u8 rx_cnt)
 682 {
 683         /* 83xx adapter does not have max_sds_rings intialized in probe */
 684         if (adapter->max_sds_rings)
 685                 adapter->drv_sds_rings = qlcnic_max_rings(adapter, rx_cnt,
 686                                                           QLCNIC_RX_QUEUE);
 687         else
 688                 adapter->drv_sds_rings = rx_cnt;
 689 }
 690
 691 int qlcnic_setup_tss_rss_intr(struct qlcnic_adapter *adapter)
 692 {
 693         struct pci_dev *pdev = adapter->pdev;
 694         int num_msix = 0, err = 0, vector;
 695
 696         adapter->flags &= ~QLCNIC_TSS_RSS;
 697
 698         if (adapter->drv_tss_rings > 0)
 699                 num_msix += adapter->drv_tss_rings;
 700         else
 701                 num_msix += adapter->drv_tx_rings;
 702
 703         if (adapter->drv_rss_rings > 0)
 704                 num_msix += adapter->drv_rss_rings;
 705         else
 706                 num_msix += adapter->drv_sds_rings;
 707
 708         if (qlcnic_83xx_check(adapter))
 709                 num_msix += 1;
 710
 711         if (!adapter->msix_entries) {
 712                 adapter->msix_entries = kcalloc(num_msix,
 713                                                 sizeof(struct msix_entry),
 714                                                 GFP_KERNEL);
 715                 if (!adapter->msix_entries)
 716                         return -ENOMEM;
 717         }
 718
 719         for (vector = 0; vector < num_msix; vector++)
 720                 adapter->msix_entries[vector].entry = vector;
 721
 722 restore:
 723         err = pci_enable_msix_exact(pdev, adapter->msix_entries, num_msix);
 724         if (err == -ENOSPC) {
 725                 if (!adapter->drv_tss_rings && !adapter->drv_rss_rings)
 726                         return err;
 727
 728                 netdev_info(adapter->netdev,
 729                             "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
 730                             num_msix, err);
 731
 732                 num_msix = adapter->drv_tx_rings + adapter->drv_sds_rings;
 733
 734                 /* Set rings to 0 so we can restore original TSS/RSS count */
 735                 adapter->drv_tss_rings = 0;
 736                 adapter->drv_rss_rings = 0;
 737
 738                 if (qlcnic_83xx_check(adapter))
 739                         num_msix += 1;
 740
 741                 netdev_info(adapter->netdev,
 742                             "Restoring %d Tx, %d SDS rings for total %d vectors.\n",
 743                             adapter->drv_tx_rings, adapter->drv_sds_rings,
 744                             num_msix);
 745
 746                 goto restore;
 747         } else if (err < 0) {
 748                 return err;
 749         }
 750
 751         adapter->ahw->num_msix = num_msix;
 752         if (adapter->drv_tss_rings > 0)
 753                 adapter->drv_tx_rings = adapter->drv_tss_rings;
 754
 755         if (adapter->drv_rss_rings > 0)
 756                 adapter->drv_sds_rings = adapter->drv_rss_rings;
 757
 758         return 0;
 759 }
 760
 761 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 762 {
 763         struct pci_dev *pdev = adapter->pdev;
 764         int err, vector;
 765
 766         if (!adapter->msix_entries) {
 767                 adapter->msix_entries = kcalloc(num_msix,
 768                                                 sizeof(struct msix_entry),
 769                                                 GFP_KERNEL);
 770                 if (!adapter->msix_entries)
 771                         return -ENOMEM;
 772         }
 773
 774         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 775
 776         if (adapter->ahw->msix_supported) {
 777 enable_msix:
 778                 for (vector = 0; vector < num_msix; vector++)
 779                         adapter->msix_entries[vector].entry = vector;
 780
 781                 err = pci_enable_msix_range(pdev,
 782                                             adapter->msix_entries, 1, num_msix);
 783
 784                 if (err == num_msix) {
 785                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 786                         adapter->ahw->num_msix = num_msix;
 787                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 788                         return 0;
 789                 } else if (err > 0) {
 790                         pci_disable_msix(pdev);
 791
 792                         dev_info(&pdev->dev,
 793                                  "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
 794                                  num_msix, err);
 795
 796                         if (qlcnic_82xx_check(adapter)) {
 797                                 num_msix = rounddown_pow_of_two(err);
 798                                 if (err < QLCNIC_82XX_MINIMUM_VECTOR)
 799                                         return -ENOSPC;
 800                         } else {
 801                                 num_msix = rounddown_pow_of_two(err - 1);
 802                                 num_msix += 1;
 803                                 if (err < QLCNIC_83XX_MINIMUM_VECTOR)
 804                                         return -ENOSPC;
 805                         }
 806
 807                         if (qlcnic_82xx_check(adapter) &&
 808                             !qlcnic_check_multi_tx(adapter)) {
 809                                 adapter->drv_sds_rings = num_msix;
 810                                 adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
 811                         } else {
 812                                 /* Distribute vectors equally */
 813                                 adapter->drv_tx_rings = num_msix / 2;
 814                                 adapter->drv_sds_rings = adapter->drv_tx_rings;
 815                         }
 816
 817                         if (num_msix) {
 818                                 dev_info(&pdev->dev,
 819                                          "Trying to allocate %d MSI-X interrupt vectors\n",
 820                                          num_msix);
 821                                 goto enable_msix;
 822                         }
 823                 } else {
 824                         dev_info(&pdev->dev,
 825                                  "Unable to allocate %d MSI-X vectors, err=%d\n",
 826                                  num_msix, err);
 827                         return err;
 828                 }
 829         }
 830
 831         return -EIO;
 832 }
 833
 834 static int qlcnic_82xx_calculate_msix_vector(struct qlcnic_adapter *adapter)
 835 {
 836         int num_msix;
 837
 838         num_msix = adapter->drv_sds_rings;
 839
 840         if (qlcnic_check_multi_tx(adapter))
 841                 num_msix += adapter->drv_tx_rings;
 842         else
 843                 num_msix += QLCNIC_SINGLE_RING;
 844
 845         return num_msix;
 846 }
 847
 848 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
 849 {
 850         int err = 0;
 851         u32 offset, mask_reg;
 852         const struct qlcnic_legacy_intr_set *legacy_intrp;
 853         struct qlcnic_hardware_context *ahw = adapter->ahw;
 854         struct pci_dev *pdev = adapter->pdev;
 855
 856         if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
 857                 adapter->flags |= QLCNIC_MSI_ENABLED;
 858                 offset = msi_tgt_status[adapter->ahw->pci_func];
 859                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
 860                                                             offset);
 861                 dev_info(&pdev->dev, "using msi interrupts\n");
 862                 adapter->msix_entries[0].vector = pdev->irq;
 863                 return err;
 864         }
 865
 866         if (qlcnic_use_msi || qlcnic_use_msi_x)
 867                 return -EOPNOTSUPP;
 868
 869         legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
 870         adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
 871         offset = legacy_intrp->tgt_status_reg;
 872         adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
 873         mask_reg = legacy_intrp->tgt_mask_reg;
 874         adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
 875         adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
 876         adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
 877         dev_info(&pdev->dev, "using legacy interrupts\n");
 878         adapter->msix_entries[0].vector = pdev->irq;
 879         return err;
 880 }
 881
 882 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter)
 883 {
 884         int num_msix, err = 0;
 885
 886         if (adapter->flags & QLCNIC_TSS_RSS) {
 887                 err = qlcnic_setup_tss_rss_intr(adapter);
 888                 if (err < 0)
 889                         return err;
 890                 num_msix = adapter->ahw->num_msix;
 891         } else {
 892                 num_msix = qlcnic_82xx_calculate_msix_vector(adapter);
 893
 894                 err = qlcnic_enable_msix(adapter, num_msix);
 895                 if (err == -ENOMEM)
 896                         return err;
 897
 898                 if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
 899                         qlcnic_disable_multi_tx(adapter);
 900                         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
 901
 902                         err = qlcnic_enable_msi_legacy(adapter);
 903                         if (err)
 904                                 return err;
 905                 }
 906         }
 907
 908         return 0;
 909 }
 910
 911 int qlcnic_82xx_mq_intrpt(struct qlcnic_adapter *adapter, int op_type)
 912 {
 913         struct qlcnic_hardware_context *ahw = adapter->ahw;
 914         int err, i;
 915
 916         if (qlcnic_check_multi_tx(adapter) &&
 917             !ahw->diag_test &&
 918             (adapter->flags & QLCNIC_MSIX_ENABLED)) {
 919                 ahw->intr_tbl = vzalloc(ahw->num_msix *
 920                                         sizeof(struct qlcnic_intrpt_config));
 921                 if (!ahw->intr_tbl)
 922                         return -ENOMEM;
 923
 924                 for (i = 0; i < ahw->num_msix; i++) {
 925                         ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
 926                         ahw->intr_tbl[i].id = i;
 927                         ahw->intr_tbl[i].src = 0;
 928                 }
 929
 930                 err = qlcnic_82xx_config_intrpt(adapter, 1);
 931                 if (err)
 932                         dev_err(&adapter->pdev->dev,
 933                                 "Failed to configure Interrupt for %d vector\n",
 934                                 ahw->num_msix);
 935                 return err;
 936         }
 937
 938         return 0;
 939 }
 940
 941 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 942 {
 943         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 944                 pci_disable_msix(adapter->pdev);
 945         if (adapter->flags & QLCNIC_MSI_ENABLED)
 946                 pci_disable_msi(adapter->pdev);
 947
 948         kfree(adapter->msix_entries);
 949         adapter->msix_entries = NULL;
 950
 951         if (adapter->ahw->intr_tbl) {
 952                 vfree(adapter->ahw->intr_tbl);
 953                 adapter->ahw->intr_tbl = NULL;
 954         }
 955 }
 956
 957 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
 958 {
 959         if (ahw->pci_base0 != NULL)
 960                 iounmap(ahw->pci_base0);
 961 }
 962
 963 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
 964 {
 965         struct qlcnic_hardware_context *ahw = adapter->ahw;
 966         struct qlcnic_pci_info *pci_info;
 967         int ret;
 968
 969         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 970                 switch (ahw->port_type) {
 971                 case QLCNIC_GBE:
 972                         ahw->total_nic_func = QLCNIC_NIU_MAX_GBE_PORTS;
 973                         break;
 974                 case QLCNIC_XGBE:
 975                         ahw->total_nic_func = QLCNIC_NIU_MAX_XG_PORTS;
 976                         break;
 977                 }
 978                 return 0;
 979         }
 980
 981         if (ahw->op_mode == QLCNIC_MGMT_FUNC)
 982                 return 0;
 983
 984         pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
 985         if (!pci_info)
 986                 return -ENOMEM;
 987
 988         ret = qlcnic_get_pci_info(adapter, pci_info);
 989         kfree(pci_info);
 990         return ret;
 991 }
 992
 993 static bool qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter *adapter)
 994 {
 995         bool ret = false;
 996
 997         if (qlcnic_84xx_check(adapter)) {
 998                 ret = true;
 999         } else if (qlcnic_83xx_check(adapter)) {
1000                 if (adapter->ahw->extra_capability[0] &
1001                     QLCNIC_FW_CAPABILITY_2_PER_PORT_ESWITCH_CFG)
1002                         ret = true;
1003                 else
1004                         ret = false;
1005         }
1006
1007         return ret;
1008 }
1009
1010 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
1011 {
1012         struct qlcnic_hardware_context *ahw = adapter->ahw;
1013         struct qlcnic_pci_info *pci_info;
1014         int i, id = 0, ret = 0, j = 0;
1015         u16 act_pci_func;
1016         u8 pfn;
1017
1018         pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
1019         if (!pci_info)
1020                 return -ENOMEM;
1021
1022         ret = qlcnic_get_pci_info(adapter, pci_info);
1023         if (ret)
1024                 goto err_pci_info;
1025
1026         act_pci_func = ahw->total_nic_func;
1027
1028         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
1029                                  act_pci_func, GFP_KERNEL);
1030         if (!adapter->npars) {
1031                 ret = -ENOMEM;
1032                 goto err_pci_info;
1033         }
1034
1035         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
1036                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
1037         if (!adapter->eswitch) {
1038                 ret = -ENOMEM;
1039                 goto err_npars;
1040         }
1041
1042         for (i = 0; i < ahw->max_vnic_func; i++) {
1043                 pfn = pci_info[i].id;
1044
1045                 if (pfn >= ahw->max_vnic_func) {
1046                         ret = -EINVAL;
1047                         dev_err(&adapter->pdev->dev, "%s: Invalid function 0x%x, max 0x%x\n",
1048                                 __func__, pfn, ahw->max_vnic_func);
1049                         goto err_eswitch;
1050                 }
1051
1052                 if (!pci_info[i].active ||
1053                     (pci_info[i].type != QLCNIC_TYPE_NIC))
1054                         continue;
1055
1056                 if (qlcnic_port_eswitch_cfg_capability(adapter)) {
1057                         if (!qlcnic_83xx_set_port_eswitch_status(adapter, pfn,
1058                                                                  &id))
1059                                 adapter->npars[j].eswitch_status = true;
1060                         else
1061                                 continue;
1062                 } else {
1063                         adapter->npars[j].eswitch_status = true;
1064                 }
1065
1066                 adapter->npars[j].pci_func = pfn;
1067                 adapter->npars[j].active = (u8)pci_info[i].active;
1068                 adapter->npars[j].type = (u8)pci_info[i].type;
1069                 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
1070                 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
1071                 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
1072
1073                 memcpy(&adapter->npars[j].mac, &pci_info[i].mac, ETH_ALEN);
1074                 j++;
1075         }
1076
1077         /* Update eSwitch status for adapters without per port eSwitch
1078          * configuration capability
1079          */
1080         if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
1081                 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
1082                         adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
1083         }
1084
1085         kfree(pci_info);
1086         return 0;
1087
1088 err_eswitch:
1089         kfree(adapter->eswitch);
1090         adapter->eswitch = NULL;
1091 err_npars:
1092         kfree(adapter->npars);
1093         adapter->npars = NULL;
1094 err_pci_info:
1095         kfree(pci_info);
1096
1097         return ret;
1098 }
1099
1100 static int
1101 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
1102 {
1103         u8 id;
1104         int ret;
1105         u32 data = QLCNIC_MGMT_FUNC;
1106         struct qlcnic_hardware_context *ahw = adapter->ahw;
1107
1108         ret = qlcnic_api_lock(adapter);
1109         if (ret)
1110                 goto err_lock;
1111
1112         id = ahw->pci_func;
1113         data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1114         data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
1115                QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
1116         QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
1117         qlcnic_api_unlock(adapter);
1118 err_lock:
1119         return ret;
1120 }
1121
1122 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
1123                             const struct pci_device_id *ent)
1124 {
1125         u32 op_mode, priv_level;
1126
1127         /* Determine FW API version */
1128         adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
1129                                                            QLCNIC_FW_API);
1130
1131         /* Find PCI function number */
1132         qlcnic_get_func_no(adapter);
1133
1134         /* Determine function privilege level */
1135         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1136         if (op_mode == QLC_DEV_DRV_DEFAULT)
1137                 priv_level = QLCNIC_MGMT_FUNC;
1138         else
1139                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1140
1141         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
1142                 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
1143                 dev_info(&adapter->pdev->dev,
1144                         "HAL Version: %d Non Privileged function\n",
1145                          adapter->ahw->fw_hal_version);
1146                 adapter->nic_ops = &qlcnic_vf_ops;
1147         } else
1148                 adapter->nic_ops = &qlcnic_ops;
1149 }
1150
1151 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
1152 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
1153 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
1154 {
1155         switch (dev_id) {
1156         case PCI_DEVICE_ID_QLOGIC_QLE824X:
1157                 *bar = QLCNIC_82XX_BAR0_LENGTH;
1158                 break;
1159         case PCI_DEVICE_ID_QLOGIC_QLE834X:
1160         case PCI_DEVICE_ID_QLOGIC_QLE8830:
1161         case PCI_DEVICE_ID_QLOGIC_QLE844X:
1162         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
1163         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
1164         case PCI_DEVICE_ID_QLOGIC_VF_QLE8C30:
1165                 *bar = QLCNIC_83XX_BAR0_LENGTH;
1166                 break;
1167         default:
1168                 *bar = 0;
1169         }
1170 }
1171
1172 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
1173                                 struct qlcnic_hardware_context *ahw)
1174 {
1175         u32 offset;
1176         void __iomem *mem_ptr0 = NULL;
1177         unsigned long mem_len, pci_len0 = 0, bar0_len;
1178
1179         /* remap phys address */
1180         mem_len = pci_resource_len(pdev, 0);
1181
1182         qlcnic_get_bar_length(pdev->device, &bar0_len);
1183         if (mem_len >= bar0_len) {
1184
1185                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
1186                 if (mem_ptr0 == NULL) {
1187                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
1188                         return -EIO;
1189                 }
1190                 pci_len0 = mem_len;
1191         } else {
1192                 return -EIO;
1193         }
1194
1195         dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
1196
1197         ahw->pci_base0 = mem_ptr0;
1198         ahw->pci_len0 = pci_len0;
1199         offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
1200         qlcnic_get_ioaddr(ahw, offset);
1201
1202         return 0;
1203 }
1204
1205 static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
1206                                          int index)
1207 {
1208         struct pci_dev *pdev = adapter->pdev;
1209         unsigned short subsystem_vendor;
1210         bool ret = true;
1211
1212         subsystem_vendor = pdev->subsystem_vendor;
1213
1214         if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
1215             pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1216                 if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
1217                     qlcnic_boards[index].sub_device == pdev->subsystem_device)
1218                         ret = true;
1219                 else
1220                         ret = false;
1221         }
1222
1223         return ret;
1224 }
1225
1226 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
1227 {
1228         struct pci_dev *pdev = adapter->pdev;
1229         int i, found = 0;
1230
1231         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1232                 if (qlcnic_boards[i].vendor == pdev->vendor &&
1233                     qlcnic_boards[i].device == pdev->device &&
1234                     qlcnic_validate_subsystem_id(adapter, i)) {
1235                         found = 1;
1236                         break;
1237                 }
1238         }
1239
1240         if (!found)
1241                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
1242         else
1243                 sprintf(name, "%pM: %s" , adapter->mac_addr,
1244                         qlcnic_boards[i].short_name);
1245 }
1246
1247 static void
1248 qlcnic_check_options(struct qlcnic_adapter *adapter)
1249 {
1250         int err;
1251         u32 fw_major, fw_minor, fw_build, prev_fw_version;
1252         struct pci_dev *pdev = adapter->pdev;
1253         struct qlcnic_hardware_context *ahw = adapter->ahw;
1254         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
1255
1256         prev_fw_version = adapter->fw_version;
1257
1258         fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
1259         fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
1260         fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
1261
1262         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
1263
1264         err = qlcnic_get_board_info(adapter);
1265         if (err) {
1266                 dev_err(&pdev->dev, "Error getting board config info.\n");
1267                 return;
1268         }
1269         if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
1270                 if (fw_dump->tmpl_hdr == NULL ||
1271                                 adapter->fw_version > prev_fw_version) {
1272                         vfree(fw_dump->tmpl_hdr);
1273                         if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1274                                 dev_info(&pdev->dev,
1275                                         "Supports FW dump capability\n");
1276                 }
1277         }
1278
1279         dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
1280                  QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
1281
1282         if (adapter->ahw->port_type == QLCNIC_XGBE) {
1283                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1284                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
1285                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
1286                 } else {
1287                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
1288                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
1289                 }
1290
1291                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1292                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1293
1294         } else if (adapter->ahw->port_type == QLCNIC_GBE) {
1295                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
1296                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1297                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1298                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
1299         }
1300
1301         adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
1302
1303         adapter->num_txd = MAX_CMD_DESCRIPTORS;
1304
1305         adapter->max_rds_rings = MAX_RDS_RINGS;
1306 }
1307
1308 static int
1309 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
1310 {
1311         struct qlcnic_info nic_info;
1312         int err = 0;
1313
1314         memset(&nic_info, 0, sizeof(struct qlcnic_info));
1315         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
1316         if (err)
1317                 return err;
1318
1319         adapter->ahw->physical_port = (u8)nic_info.phys_port;
1320         adapter->ahw->switch_mode = nic_info.switch_mode;
1321         adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
1322         adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
1323         adapter->ahw->capabilities = nic_info.capabilities;
1324
1325         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1326                 u32 temp;
1327                 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
1328                 if (err == -EIO)
1329                         return err;
1330                 adapter->ahw->extra_capability[0] = temp;
1331         } else {
1332                 adapter->ahw->extra_capability[0] = 0;
1333         }
1334
1335         adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1336         adapter->ahw->max_mtu = nic_info.max_mtu;
1337
1338         if (adapter->ahw->capabilities & BIT_6) {
1339                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1340                 adapter->ahw->nic_mode = QLCNIC_VNIC_MODE;
1341                 adapter->max_tx_rings = QLCNIC_MAX_HW_VNIC_TX_RINGS;
1342                 adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
1343
1344                 dev_info(&adapter->pdev->dev, "vNIC mode enabled.\n");
1345         } else {
1346                 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1347                 adapter->max_tx_rings = QLCNIC_MAX_HW_TX_RINGS;
1348                 adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
1349                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1350         }
1351
1352         return err;
1353 }
1354
1355 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1356                             struct qlcnic_esw_func_cfg *esw_cfg)
1357 {
1358         if (esw_cfg->discard_tagged)
1359                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1360         else
1361                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1362
1363         if (esw_cfg->vlan_id) {
1364                 adapter->rx_pvid = esw_cfg->vlan_id;
1365                 adapter->tx_pvid = esw_cfg->vlan_id;
1366         } else {
1367                 adapter->rx_pvid = 0;
1368                 adapter->tx_pvid = 0;
1369         }
1370 }
1371
1372 static int
1373 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1374 {
1375         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1376         int err;
1377
1378         if (qlcnic_sriov_vf_check(adapter)) {
1379                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1380                 if (err) {
1381                         netdev_err(netdev,
1382                                    "Cannot add VLAN filter for VLAN id %d, err=%d",
1383                                    vid, err);
1384                         return err;
1385                 }
1386         }
1387
1388         set_bit(vid, adapter->vlans);
1389         return 0;
1390 }
1391
1392 static int
1393 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1394 {
1395         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1396         int err;
1397
1398         if (qlcnic_sriov_vf_check(adapter)) {
1399                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1400                 if (err) {
1401                         netdev_err(netdev,
1402                                    "Cannot delete VLAN filter for VLAN id %d, err=%d",
1403                                    vid, err);
1404                         return err;
1405                 }
1406         }
1407
1408         qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1409         clear_bit(vid, adapter->vlans);
1410         return 0;
1411 }
1412
1413 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1414                                       struct qlcnic_esw_func_cfg *esw_cfg)
1415 {
1416         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1417                                 QLCNIC_PROMISC_DISABLED);
1418
1419         if (esw_cfg->mac_anti_spoof)
1420                 adapter->flags |= QLCNIC_MACSPOOF;
1421
1422         if (!esw_cfg->mac_override)
1423                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1424
1425         if (!esw_cfg->promisc_mode)
1426                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1427 }
1428
1429 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1430 {
1431         struct qlcnic_esw_func_cfg esw_cfg;
1432
1433         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1434                 return 0;
1435
1436         esw_cfg.pci_func = adapter->ahw->pci_func;
1437         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1438                         return -EIO;
1439         qlcnic_set_vlan_config(adapter, &esw_cfg);
1440         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1441         qlcnic_set_netdev_features(adapter, &esw_cfg);
1442
1443         return 0;
1444 }
1445
1446 void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1447                                 struct qlcnic_esw_func_cfg *esw_cfg)
1448 {
1449         struct net_device *netdev = adapter->netdev;
1450
1451         if (qlcnic_83xx_check(adapter))
1452                 return;
1453
1454         adapter->offload_flags = esw_cfg->offload_flags;
1455         adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1456         netdev_update_features(netdev);
1457         adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1458 }
1459
1460 static int
1461 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1462 {
1463         u32 op_mode, priv_level;
1464         int err = 0;
1465
1466         err = qlcnic_initialize_nic(adapter);
1467         if (err)
1468                 return err;
1469
1470         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1471                 return 0;
1472
1473         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1474         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1475
1476         if (op_mode == QLC_DEV_DRV_DEFAULT)
1477                 priv_level = QLCNIC_MGMT_FUNC;
1478         else
1479                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1480
1481         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1482                 if (priv_level == QLCNIC_MGMT_FUNC) {
1483                         adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1484                         err = qlcnic_init_pci_info(adapter);
1485                         if (err)
1486                                 return err;
1487                         /* Set privilege level for other functions */
1488                         qlcnic_set_function_modes(adapter);
1489                         dev_info(&adapter->pdev->dev,
1490                                 "HAL Version: %d, Management function\n",
1491                                  adapter->ahw->fw_hal_version);
1492                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1493                         adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1494                         dev_info(&adapter->pdev->dev,
1495                                 "HAL Version: %d, Privileged function\n",
1496                                  adapter->ahw->fw_hal_version);
1497                 }
1498         } else {
1499                 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1500         }
1501
1502         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1503
1504         return err;
1505 }
1506
1507 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1508 {
1509         struct qlcnic_esw_func_cfg esw_cfg;
1510         struct qlcnic_npar_info *npar;
1511         u8 i;
1512
1513         if (adapter->need_fw_reset)
1514                 return 0;
1515
1516         for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1517                 if (!adapter->npars[i].eswitch_status)
1518                         continue;
1519
1520                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1521                 esw_cfg.pci_func = adapter->npars[i].pci_func;
1522                 esw_cfg.mac_override = BIT_0;
1523                 esw_cfg.promisc_mode = BIT_0;
1524                 if (qlcnic_82xx_check(adapter)) {
1525                         esw_cfg.offload_flags = BIT_0;
1526                         if (QLCNIC_IS_TSO_CAPABLE(adapter))
1527                                 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1528                 }
1529                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1530                         return -EIO;
1531                 npar = &adapter->npars[i];
1532                 npar->pvid = esw_cfg.vlan_id;
1533                 npar->mac_override = esw_cfg.mac_override;
1534                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1535                 npar->discard_tagged = esw_cfg.discard_tagged;
1536                 npar->promisc_mode = esw_cfg.promisc_mode;
1537                 npar->offload_flags = esw_cfg.offload_flags;
1538         }
1539
1540         return 0;
1541 }
1542
1543
1544 static int
1545 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1546                         struct qlcnic_npar_info *npar, int pci_func)
1547 {
1548         struct qlcnic_esw_func_cfg esw_cfg;
1549         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1550         esw_cfg.pci_func = pci_func;
1551         esw_cfg.vlan_id = npar->pvid;
1552         esw_cfg.mac_override = npar->mac_override;
1553         esw_cfg.discard_tagged = npar->discard_tagged;
1554         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1555         esw_cfg.offload_flags = npar->offload_flags;
1556         esw_cfg.promisc_mode = npar->promisc_mode;
1557         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1558                 return -EIO;
1559
1560         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1561         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1562                 return -EIO;
1563
1564         return 0;
1565 }
1566
1567 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1568 {
1569         int i, err;
1570         struct qlcnic_npar_info *npar;
1571         struct qlcnic_info nic_info;
1572         u8 pci_func;
1573
1574         if (qlcnic_82xx_check(adapter))
1575                 if (!adapter->need_fw_reset)
1576                         return 0;
1577
1578         /* Set the NPAR config data after FW reset */
1579         for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1580                 npar = &adapter->npars[i];
1581                 pci_func = npar->pci_func;
1582                 if (!adapter->npars[i].eswitch_status)
1583                         continue;
1584
1585                 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1586                 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1587                 if (err)
1588                         return err;
1589                 nic_info.min_tx_bw = npar->min_bw;
1590                 nic_info.max_tx_bw = npar->max_bw;
1591                 err = qlcnic_set_nic_info(adapter, &nic_info);
1592                 if (err)
1593                         return err;
1594
1595                 if (npar->enable_pm) {
1596                         err = qlcnic_config_port_mirroring(adapter,
1597                                                            npar->dest_npar, 1,
1598                                                            pci_func);
1599                         if (err)
1600                                 return err;
1601                 }
1602                 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1603                 if (err)
1604                         return err;
1605         }
1606         return 0;
1607 }
1608
1609 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1610 {
1611         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1612         u32 npar_state;
1613
1614         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1615                 return 0;
1616
1617         npar_state = QLC_SHARED_REG_RD32(adapter,
1618                                          QLCNIC_CRB_DEV_NPAR_STATE);
1619         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1620                 msleep(1000);
1621                 npar_state = QLC_SHARED_REG_RD32(adapter,
1622                                                  QLCNIC_CRB_DEV_NPAR_STATE);
1623         }
1624         if (!npar_opt_timeo) {
1625                 dev_err(&adapter->pdev->dev,
1626                         "Waiting for NPAR state to operational timeout\n");
1627                 return -EIO;
1628         }
1629         return 0;
1630 }
1631
1632 static int
1633 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1634 {
1635         int err;
1636
1637         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1638             adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1639                 return 0;
1640
1641         err = qlcnic_set_default_offload_settings(adapter);
1642         if (err)
1643                 return err;
1644
1645         err = qlcnic_reset_npar_config(adapter);
1646         if (err)
1647                 return err;
1648
1649         qlcnic_dev_set_npar_ready(adapter);
1650
1651         return err;
1652 }
1653
1654 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1655 {
1656         int err;
1657
1658         err = qlcnic_can_start_firmware(adapter);
1659         if (err < 0)
1660                 return err;
1661         else if (!err)
1662                 goto check_fw_status;
1663
1664         if (qlcnic_load_fw_file)
1665                 qlcnic_request_firmware(adapter);
1666         else {
1667                 err = qlcnic_check_flash_fw_ver(adapter);
1668                 if (err)
1669                         goto err_out;
1670
1671                 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1672         }
1673
1674         err = qlcnic_need_fw_reset(adapter);
1675         if (err == 0)
1676                 goto check_fw_status;
1677
1678         err = qlcnic_pinit_from_rom(adapter);
1679         if (err)
1680                 goto err_out;
1681
1682         err = qlcnic_load_firmware(adapter);
1683         if (err)
1684                 goto err_out;
1685
1686         qlcnic_release_firmware(adapter);
1687         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1688
1689 check_fw_status:
1690         err = qlcnic_check_fw_status(adapter);
1691         if (err)
1692                 goto err_out;
1693
1694         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1695         qlcnic_idc_debug_info(adapter, 1);
1696         err = qlcnic_check_eswitch_mode(adapter);
1697         if (err) {
1698                 dev_err(&adapter->pdev->dev,
1699                         "Memory allocation failed for eswitch\n");
1700                 goto err_out;
1701         }
1702         err = qlcnic_set_mgmt_operations(adapter);
1703         if (err)
1704                 goto err_out;
1705
1706         qlcnic_check_options(adapter);
1707         adapter->need_fw_reset = 0;
1708
1709         qlcnic_release_firmware(adapter);
1710         return 0;
1711
1712 err_out:
1713         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1714         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1715
1716         qlcnic_release_firmware(adapter);
1717         return err;
1718 }
1719
1720 static int
1721 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1722 {
1723         irq_handler_t handler;
1724         struct qlcnic_host_sds_ring *sds_ring;
1725         struct qlcnic_host_tx_ring *tx_ring;
1726         int err, ring, num_sds_rings;
1727
1728         unsigned long flags = 0;
1729         struct net_device *netdev = adapter->netdev;
1730         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1731
1732         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1733                 if (qlcnic_82xx_check(adapter))
1734                         handler = qlcnic_tmp_intr;
1735                 else
1736                         handler = qlcnic_83xx_tmp_intr;
1737                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1738                         flags |= IRQF_SHARED;
1739
1740         } else {
1741                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1742                         handler = qlcnic_msix_intr;
1743                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1744                         handler = qlcnic_msi_intr;
1745                 else {
1746                         flags |= IRQF_SHARED;
1747                         if (qlcnic_82xx_check(adapter))
1748                                 handler = qlcnic_intr;
1749                         else
1750                                 handler = qlcnic_83xx_intr;
1751                 }
1752         }
1753         adapter->irq = netdev->irq;
1754
1755         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1756                 if (qlcnic_82xx_check(adapter) ||
1757                     (qlcnic_83xx_check(adapter) &&
1758                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1759                         num_sds_rings = adapter->drv_sds_rings;
1760                         for (ring = 0; ring < num_sds_rings; ring++) {
1761                                 sds_ring = &recv_ctx->sds_rings[ring];
1762                                 if (qlcnic_82xx_check(adapter) &&
1763                                     !qlcnic_check_multi_tx(adapter) &&
1764                                     (ring == (num_sds_rings - 1))) {
1765                                         if (!(adapter->flags &
1766                                               QLCNIC_MSIX_ENABLED))
1767                                                 snprintf(sds_ring->name,
1768                                                          sizeof(sds_ring->name),
1769                                                          "qlcnic");
1770                                         else
1771                                                 snprintf(sds_ring->name,
1772                                                          sizeof(sds_ring->name),
1773                                                          "%s-tx-0-rx-%d",
1774                                                          netdev->name, ring);
1775                                 } else {
1776                                         snprintf(sds_ring->name,
1777                                                  sizeof(sds_ring->name),
1778                                                  "%s-rx-%d",
1779                                                  netdev->name, ring);
1780                                 }
1781                                 err = request_irq(sds_ring->irq, handler, flags,
1782                                                   sds_ring->name, sds_ring);
1783                                 if (err)
1784                                         return err;
1785                         }
1786                 }
1787                 if ((qlcnic_82xx_check(adapter) &&
1788                      qlcnic_check_multi_tx(adapter)) ||
1789                     (qlcnic_83xx_check(adapter) &&
1790                      (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1791                      !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
1792                         handler = qlcnic_msix_tx_intr;
1793                         for (ring = 0; ring < adapter->drv_tx_rings;
1794                              ring++) {
1795                                 tx_ring = &adapter->tx_ring[ring];
1796                                 snprintf(tx_ring->name, sizeof(tx_ring->name),
1797                                          "%s-tx-%d", netdev->name, ring);
1798                                 err = request_irq(tx_ring->irq, handler, flags,
1799                                                   tx_ring->name, tx_ring);
1800                                 if (err)
1801                                         return err;
1802                         }
1803                 }
1804         }
1805         return 0;
1806 }
1807
1808 static void
1809 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1810 {
1811         int ring;
1812         struct qlcnic_host_sds_ring *sds_ring;
1813         struct qlcnic_host_tx_ring *tx_ring;
1814
1815         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1816
1817         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1818                 if (qlcnic_82xx_check(adapter) ||
1819                     (qlcnic_83xx_check(adapter) &&
1820                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1821                         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1822                                 sds_ring = &recv_ctx->sds_rings[ring];
1823                                 free_irq(sds_ring->irq, sds_ring);
1824                         }
1825                 }
1826                 if ((qlcnic_83xx_check(adapter) &&
1827                      !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
1828                     (qlcnic_82xx_check(adapter) &&
1829                      qlcnic_check_multi_tx(adapter))) {
1830                         for (ring = 0; ring < adapter->drv_tx_rings;
1831                              ring++) {
1832                                 tx_ring = &adapter->tx_ring[ring];
1833                                 if (tx_ring->irq)
1834                                         free_irq(tx_ring->irq, tx_ring);
1835                         }
1836                 }
1837         }
1838 }
1839
1840 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1841 {
1842         u32 capab = 0;
1843
1844         if (qlcnic_82xx_check(adapter)) {
1845                 if (adapter->ahw->extra_capability[0] &
1846                     QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1847                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1848         } else {
1849                 capab = adapter->ahw->capabilities;
1850                 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1851                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1852         }
1853 }
1854
1855 static int qlcnic_config_def_intr_coalesce(struct qlcnic_adapter *adapter)
1856 {
1857         struct qlcnic_hardware_context *ahw = adapter->ahw;
1858         int err;
1859
1860         /* Initialize interrupt coalesce parameters */
1861         ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1862
1863         if (qlcnic_83xx_check(adapter)) {
1864                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
1865                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1866                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1867                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1868                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1869
1870                 err = qlcnic_83xx_set_rx_tx_intr_coal(adapter);
1871         } else {
1872                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1873                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1874                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1875
1876                 err = qlcnic_82xx_set_rx_coalesce(adapter);
1877         }
1878
1879         return err;
1880 }
1881
1882 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1883 {
1884         int ring;
1885         struct qlcnic_host_rds_ring *rds_ring;
1886
1887         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1888                 return -EIO;
1889
1890         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1891                 return 0;
1892
1893         if (qlcnic_set_eswitch_port_config(adapter))
1894                 return -EIO;
1895
1896         qlcnic_get_lro_mss_capability(adapter);
1897
1898         if (qlcnic_fw_create_ctx(adapter))
1899                 return -EIO;
1900
1901         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1902                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1903                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1904         }
1905
1906         qlcnic_set_multi(netdev);
1907         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1908
1909         adapter->ahw->linkup = 0;
1910
1911         if (adapter->drv_sds_rings > 1)
1912                 qlcnic_config_rss(adapter, 1);
1913
1914         qlcnic_config_def_intr_coalesce(adapter);
1915
1916         if (netdev->features & NETIF_F_LRO)
1917                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1918
1919         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1920         qlcnic_napi_enable(adapter);
1921
1922         qlcnic_linkevent_request(adapter, 1);
1923
1924         adapter->ahw->reset_context = 0;
1925         netif_tx_start_all_queues(netdev);
1926         return 0;
1927 }
1928
1929 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1930 {
1931         int err = 0;
1932
1933         rtnl_lock();
1934         if (netif_running(netdev))
1935                 err = __qlcnic_up(adapter, netdev);
1936         rtnl_unlock();
1937
1938         return err;
1939 }
1940
1941 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1942 {
1943         int ring;
1944
1945         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1946                 return;
1947
1948         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1949                 return;
1950
1951         smp_mb();
1952         netif_carrier_off(netdev);
1953         adapter->ahw->linkup = 0;
1954         netif_tx_disable(netdev);
1955
1956         qlcnic_free_mac_list(adapter);
1957
1958         if (adapter->fhash.fnum)
1959                 qlcnic_delete_lb_filters(adapter);
1960
1961         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1962         if (qlcnic_sriov_vf_check(adapter))
1963                 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1964
1965         qlcnic_napi_disable(adapter);
1966
1967         qlcnic_fw_destroy_ctx(adapter);
1968         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1969
1970         qlcnic_reset_rx_buffers_list(adapter);
1971
1972         for (ring = 0; ring < adapter->drv_tx_rings; ring++)
1973                 qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
1974 }
1975
1976 /* Usage: During suspend and firmware recovery module */
1977
1978 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1979 {
1980         rtnl_lock();
1981         if (netif_running(netdev))
1982                 __qlcnic_down(adapter, netdev);
1983         rtnl_unlock();
1984
1985 }
1986
1987 int
1988 qlcnic_attach(struct qlcnic_adapter *adapter)
1989 {
1990         struct net_device *netdev = adapter->netdev;
1991         struct pci_dev *pdev = adapter->pdev;
1992         int err;
1993
1994         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1995                 return 0;
1996
1997         err = qlcnic_napi_add(adapter, netdev);
1998         if (err)
1999                 return err;
2000
2001         err = qlcnic_alloc_sw_resources(adapter);
2002         if (err) {
2003                 dev_err(&pdev->dev, "Error in setting sw resources\n");
2004                 goto err_out_napi_del;
2005         }
2006
2007         err = qlcnic_alloc_hw_resources(adapter);
2008         if (err) {
2009                 dev_err(&pdev->dev, "Error in setting hw resources\n");
2010                 goto err_out_free_sw;
2011         }
2012
2013         err = qlcnic_request_irq(adapter);
2014         if (err) {
2015                 dev_err(&pdev->dev, "failed to setup interrupt\n");
2016                 goto err_out_free_hw;
2017         }
2018
2019         qlcnic_create_sysfs_entries(adapter);
2020
2021         if (qlcnic_encap_rx_offload(adapter))
2022                 udp_tunnel_get_rx_info(netdev);
2023
2024         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
2025         return 0;
2026
2027 err_out_free_hw:
2028         qlcnic_free_hw_resources(adapter);
2029 err_out_free_sw:
2030         qlcnic_free_sw_resources(adapter);
2031 err_out_napi_del:
2032         qlcnic_napi_del(adapter);
2033         return err;
2034 }
2035
2036 void qlcnic_detach(struct qlcnic_adapter *adapter)
2037 {
2038         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2039                 return;
2040
2041         qlcnic_remove_sysfs_entries(adapter);
2042
2043         qlcnic_free_hw_resources(adapter);
2044         qlcnic_release_rx_buffers(adapter);
2045         qlcnic_free_irq(adapter);
2046         qlcnic_napi_del(adapter);
2047         qlcnic_free_sw_resources(adapter);
2048
2049         adapter->is_up = 0;
2050 }
2051
2052 void qlcnic_diag_free_res(struct net_device *netdev, int drv_sds_rings)
2053 {
2054         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2055         struct qlcnic_host_sds_ring *sds_ring;
2056         int drv_tx_rings = adapter->drv_tx_rings;
2057         int ring;
2058
2059         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
2060         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2061                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2062                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
2063                         qlcnic_disable_sds_intr(adapter, sds_ring);
2064                 }
2065         }
2066
2067         qlcnic_fw_destroy_ctx(adapter);
2068
2069         qlcnic_detach(adapter);
2070
2071         adapter->ahw->diag_test = 0;
2072         adapter->drv_sds_rings = drv_sds_rings;
2073         adapter->drv_tx_rings = drv_tx_rings;
2074
2075         if (qlcnic_attach(adapter))
2076                 goto out;
2077
2078         if (netif_running(netdev))
2079                 __qlcnic_up(adapter, netdev);
2080 out:
2081         netif_device_attach(netdev);
2082 }
2083
2084 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
2085 {
2086         struct qlcnic_hardware_context *ahw = adapter->ahw;
2087         int err = 0;
2088
2089         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
2090                                 GFP_KERNEL);
2091         if (!adapter->recv_ctx) {
2092                 err = -ENOMEM;
2093                 goto err_out;
2094         }
2095
2096         if (qlcnic_83xx_check(adapter)) {
2097                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
2098                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
2099                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
2100                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2101                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2102         } else {
2103                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
2104                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2105                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2106         }
2107
2108         /* clear stats */
2109         memset(&adapter->stats, 0, sizeof(adapter->stats));
2110 err_out:
2111         return err;
2112 }
2113
2114 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
2115 {
2116         struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
2117
2118         kfree(adapter->recv_ctx);
2119         adapter->recv_ctx = NULL;
2120
2121         if (fw_dump->tmpl_hdr) {
2122                 vfree(fw_dump->tmpl_hdr);
2123                 fw_dump->tmpl_hdr = NULL;
2124         }
2125
2126         if (fw_dump->dma_buffer) {
2127                 dma_free_coherent(&adapter->pdev->dev, QLC_PEX_DMA_READ_SIZE,
2128                                   fw_dump->dma_buffer, fw_dump->phys_addr);
2129                 fw_dump->dma_buffer = NULL;
2130         }
2131
2132         kfree(adapter->ahw->reset.buff);
2133         adapter->ahw->fw_dump.tmpl_hdr = NULL;
2134 }
2135
2136 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
2137 {
2138         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2139         struct qlcnic_host_sds_ring *sds_ring;
2140         struct qlcnic_host_rds_ring *rds_ring;
2141         int ring;
2142         int ret;
2143
2144         netif_device_detach(netdev);
2145
2146         if (netif_running(netdev))
2147                 __qlcnic_down(adapter, netdev);
2148
2149         qlcnic_detach(adapter);
2150
2151         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
2152         adapter->ahw->diag_test = test;
2153         adapter->ahw->linkup = 0;
2154
2155         ret = qlcnic_attach(adapter);
2156         if (ret) {
2157                 netif_device_attach(netdev);
2158                 return ret;
2159         }
2160
2161         ret = qlcnic_fw_create_ctx(adapter);
2162         if (ret) {
2163                 qlcnic_detach(adapter);
2164                 netif_device_attach(netdev);
2165                 return ret;
2166         }
2167
2168         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
2169                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
2170                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
2171         }
2172
2173         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2174                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2175                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
2176                         qlcnic_enable_sds_intr(adapter, sds_ring);
2177                 }
2178         }
2179
2180         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
2181                 adapter->ahw->loopback_state = 0;
2182                 qlcnic_linkevent_request(adapter, 1);
2183         }
2184
2185         set_bit(__QLCNIC_DEV_UP, &adapter->state);
2186
2187         return 0;
2188 }
2189
2190 /* Reset context in hardware only */
2191 static int
2192 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
2193 {
2194         struct net_device *netdev = adapter->netdev;
2195
2196         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2197                 return -EBUSY;
2198
2199         netif_device_detach(netdev);
2200
2201         qlcnic_down(adapter, netdev);
2202
2203         qlcnic_up(adapter, netdev);
2204
2205         netif_device_attach(netdev);
2206
2207         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2208         netdev_info(adapter->netdev, "%s: soft reset complete\n", __func__);
2209         return 0;
2210 }
2211
2212 int
2213 qlcnic_reset_context(struct qlcnic_adapter *adapter)
2214 {
2215         int err = 0;
2216         struct net_device *netdev = adapter->netdev;
2217
2218         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2219                 return -EBUSY;
2220
2221         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
2222
2223                 netif_device_detach(netdev);
2224
2225                 if (netif_running(netdev))
2226                         __qlcnic_down(adapter, netdev);
2227
2228                 qlcnic_detach(adapter);
2229
2230                 if (netif_running(netdev)) {
2231                         err = qlcnic_attach(adapter);
2232                         if (!err) {
2233                                 __qlcnic_up(adapter, netdev);
2234                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2235                         }
2236                 }
2237
2238                 netif_device_attach(netdev);
2239         }
2240
2241         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2242         return err;
2243 }
2244
2245 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
2246 {
2247         struct qlcnic_hardware_context *ahw = adapter->ahw;
2248         u16 act_pci_fn = ahw->total_nic_func;
2249         u16 count;
2250
2251         ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
2252         if (act_pci_fn <= 2)
2253                 count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
2254                          act_pci_fn;
2255         else
2256                 count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
2257                          act_pci_fn;
2258         ahw->max_uc_count = count;
2259 }
2260
2261 static int qlcnic_set_real_num_queues(struct qlcnic_adapter *adapter,
2262                                       u8 tx_queues, u8 rx_queues)
2263 {
2264         struct net_device *netdev = adapter->netdev;
2265         int err = 0;
2266
2267         if (tx_queues) {
2268                 err = netif_set_real_num_tx_queues(netdev, tx_queues);
2269                 if (err) {
2270                         netdev_err(netdev, "failed to set %d Tx queues\n",
2271                                    tx_queues);
2272                         return err;
2273                 }
2274         }
2275
2276         if (rx_queues) {
2277                 err = netif_set_real_num_rx_queues(netdev, rx_queues);
2278                 if (err)
2279                         netdev_err(netdev, "failed to set %d Rx queues\n",
2280                                    rx_queues);
2281         }
2282
2283         return err;
2284 }
2285
2286 int
2287 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
2288                     int pci_using_dac)
2289 {
2290         int err;
2291         struct pci_dev *pdev = adapter->pdev;
2292
2293         adapter->rx_csum = 1;
2294         adapter->ahw->mc_enabled = 0;
2295         qlcnic_set_mac_filter_count(adapter);
2296
2297         netdev->netdev_ops         = &qlcnic_netdev_ops;
2298         netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
2299
2300         qlcnic_change_mtu(netdev, netdev->mtu);
2301
2302         netdev->ethtool_ops = (qlcnic_sriov_vf_check(adapter)) ?
2303                 &qlcnic_sriov_vf_ethtool_ops : &qlcnic_ethtool_ops;
2304
2305         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2306                              NETIF_F_IPV6_CSUM | NETIF_F_GRO |
2307                              NETIF_F_HW_VLAN_CTAG_RX);
2308         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
2309                                   NETIF_F_IPV6_CSUM);
2310
2311         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
2312                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
2313                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
2314         }
2315
2316         if (pci_using_dac) {
2317                 netdev->features |= NETIF_F_HIGHDMA;
2318                 netdev->vlan_features |= NETIF_F_HIGHDMA;
2319         }
2320
2321         if (qlcnic_vlan_tx_check(adapter))
2322                 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
2323
2324         if (qlcnic_sriov_vf_check(adapter))
2325                 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2326
2327         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
2328                 netdev->features |= NETIF_F_LRO;
2329
2330         if (qlcnic_encap_tx_offload(adapter)) {
2331                 netdev->features |= NETIF_F_GSO_UDP_TUNNEL;
2332
2333                 /* encapsulation Tx offload supported by Adapter */
2334                 netdev->hw_enc_features = NETIF_F_IP_CSUM        |
2335                                           NETIF_F_GSO_UDP_TUNNEL |
2336                                           NETIF_F_TSO            |
2337                                           NETIF_F_TSO6;
2338         }
2339
2340         if (qlcnic_encap_rx_offload(adapter))
2341                 netdev->hw_enc_features |= NETIF_F_RXCSUM;
2342
2343         netdev->hw_features = netdev->features;
2344         netdev->priv_flags |= IFF_UNICAST_FLT;
2345         netdev->irq = adapter->msix_entries[0].vector;
2346
2347         /* MTU range: 68 - 9600 */
2348         netdev->min_mtu = P3P_MIN_MTU;
2349         netdev->max_mtu = P3P_MAX_MTU;
2350
2351         err = qlcnic_set_real_num_queues(adapter, adapter->drv_tx_rings,
2352                                          adapter->drv_sds_rings);
2353         if (err)
2354                 return err;
2355
2356         qlcnic_dcb_init_dcbnl_ops(adapter->dcb);
2357
2358         err = register_netdev(netdev);
2359         if (err) {
2360                 dev_err(&pdev->dev, "failed to register net device\n");
2361                 return err;
2362         }
2363
2364         return 0;
2365 }
2366
2367 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
2368 {
2369         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
2370                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
2371                 *pci_using_dac = 1;
2372         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
2373                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
2374                 *pci_using_dac = 0;
2375         else {
2376                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
2377                 return -EIO;
2378         }
2379
2380         return 0;
2381 }
2382
2383 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
2384 {
2385         int ring;
2386         struct qlcnic_host_tx_ring *tx_ring;
2387
2388         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2389                 tx_ring = &adapter->tx_ring[ring];
2390                 if (tx_ring) {
2391                         vfree(tx_ring->cmd_buf_arr);
2392                         tx_ring->cmd_buf_arr = NULL;
2393                 }
2394         }
2395         kfree(adapter->tx_ring);
2396 }
2397
2398 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
2399                           struct net_device *netdev)
2400 {
2401         int ring, vector, index;
2402         struct qlcnic_host_tx_ring *tx_ring;
2403         struct qlcnic_cmd_buffer *cmd_buf_arr;
2404
2405         tx_ring = kcalloc(adapter->drv_tx_rings,
2406                           sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
2407         if (tx_ring == NULL)
2408                 return -ENOMEM;
2409
2410         adapter->tx_ring = tx_ring;
2411
2412         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2413                 tx_ring = &adapter->tx_ring[ring];
2414                 tx_ring->num_desc = adapter->num_txd;
2415                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
2416                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
2417                 if (cmd_buf_arr == NULL) {
2418                         qlcnic_free_tx_rings(adapter);
2419                         return -ENOMEM;
2420                 }
2421                 tx_ring->cmd_buf_arr = cmd_buf_arr;
2422                 spin_lock_init(&tx_ring->tx_clean_lock);
2423         }
2424
2425         if (qlcnic_83xx_check(adapter) ||
2426             (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
2427                 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2428                         tx_ring = &adapter->tx_ring[ring];
2429                         tx_ring->adapter = adapter;
2430                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
2431                                 index = adapter->drv_sds_rings + ring;
2432                                 vector = adapter->msix_entries[index].vector;
2433                                 tx_ring->irq = vector;
2434                         }
2435                 }
2436         }
2437
2438         return 0;
2439 }
2440
2441 void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
2442 {
2443         struct qlcnic_hardware_context *ahw = adapter->ahw;
2444         u32 fw_cmd = 0;
2445
2446         if (qlcnic_82xx_check(adapter))
2447                 fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
2448         else if (qlcnic_83xx_check(adapter))
2449                 fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
2450
2451         if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER)
2452                 qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
2453 }
2454
2455 /* Reset firmware API lock */
2456 static void qlcnic_reset_api_lock(struct qlcnic_adapter *adapter)
2457 {
2458         qlcnic_api_lock(adapter);
2459         qlcnic_api_unlock(adapter);
2460 }
2461
2462
2463 static int
2464 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2465 {
2466         struct net_device *netdev = NULL;
2467         struct qlcnic_adapter *adapter = NULL;
2468         struct qlcnic_hardware_context *ahw;
2469         int err, pci_using_dac = -1;
2470         char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
2471
2472         err = pci_enable_device(pdev);
2473         if (err)
2474                 return err;
2475
2476         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2477                 err = -ENODEV;
2478                 goto err_out_disable_pdev;
2479         }
2480
2481         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
2482         if (err)
2483                 goto err_out_disable_pdev;
2484
2485         err = pci_request_regions(pdev, qlcnic_driver_name);
2486         if (err)
2487                 goto err_out_disable_pdev;
2488
2489         pci_set_master(pdev);
2490         pci_enable_pcie_error_reporting(pdev);
2491
2492         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2493         if (!ahw) {
2494                 err = -ENOMEM;
2495                 goto err_out_free_res;
2496         }
2497
2498         switch (ent->device) {
2499         case PCI_DEVICE_ID_QLOGIC_QLE824X:
2500                 ahw->hw_ops = &qlcnic_hw_ops;
2501                 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2502                 break;
2503         case PCI_DEVICE_ID_QLOGIC_QLE834X:
2504         case PCI_DEVICE_ID_QLOGIC_QLE8830:
2505         case PCI_DEVICE_ID_QLOGIC_QLE844X:
2506                 qlcnic_83xx_register_map(ahw);
2507                 break;
2508         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2509         case PCI_DEVICE_ID_QLOGIC_VF_QLE8C30:
2510         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2511                 qlcnic_sriov_vf_register_map(ahw);
2512                 break;
2513         default:
2514                 goto err_out_free_hw_res;
2515         }
2516
2517         err = qlcnic_setup_pci_map(pdev, ahw);
2518         if (err)
2519                 goto err_out_free_hw_res;
2520
2521         netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
2522                                    QLCNIC_MAX_TX_RINGS);
2523         if (!netdev) {
2524                 err = -ENOMEM;
2525                 goto err_out_iounmap;
2526         }
2527
2528         SET_NETDEV_DEV(netdev, &pdev->dev);
2529
2530         adapter = netdev_priv(netdev);
2531         adapter->netdev  = netdev;
2532         adapter->pdev    = pdev;
2533         adapter->ahw = ahw;
2534
2535         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2536         if (adapter->qlcnic_wq == NULL) {
2537                 err = -ENOMEM;
2538                 dev_err(&pdev->dev, "Failed to create workqueue\n");
2539                 goto err_out_free_netdev;
2540         }
2541
2542         err = qlcnic_alloc_adapter_resources(adapter);
2543         if (err)
2544                 goto err_out_free_wq;
2545
2546         adapter->dev_rst_time = jiffies;
2547         ahw->revision_id = pdev->revision;
2548         ahw->max_vnic_func = qlcnic_get_vnic_func_count(adapter);
2549         if (qlcnic_mac_learn == FDB_MAC_LEARN)
2550                 adapter->fdb_mac_learn = true;
2551         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2552                 adapter->drv_mac_learn = true;
2553
2554         rwlock_init(&adapter->ahw->crb_lock);
2555         mutex_init(&adapter->ahw->mem_lock);
2556
2557         INIT_LIST_HEAD(&adapter->mac_list);
2558
2559         qlcnic_register_dcb(adapter);
2560
2561         if (qlcnic_82xx_check(adapter)) {
2562                 qlcnic_check_vf(adapter, ent);
2563                 adapter->portnum = adapter->ahw->pci_func;
2564                 qlcnic_reset_api_lock(adapter);
2565                 err = qlcnic_start_firmware(adapter);
2566                 if (err) {
2567                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
2568                                 "\t\tIf reboot doesn't help, try flashing the card\n");
2569                         goto err_out_maintenance_mode;
2570                 }
2571
2572                 /* compute and set default and max tx/sds rings */
2573                 if (adapter->ahw->msix_supported) {
2574                         if (qlcnic_check_multi_tx_capability(adapter) == 1)
2575                                 qlcnic_set_tx_ring_count(adapter,
2576                                                          QLCNIC_SINGLE_RING);
2577                         else
2578                                 qlcnic_set_tx_ring_count(adapter,
2579                                                          QLCNIC_DEF_TX_RINGS);
2580                         qlcnic_set_sds_ring_count(adapter,
2581                                                   QLCNIC_DEF_SDS_RINGS);
2582                 } else {
2583                         qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
2584                         qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
2585                 }
2586
2587                 err = qlcnic_setup_idc_param(adapter);
2588                 if (err)
2589                         goto err_out_free_hw;
2590
2591                 adapter->flags |= QLCNIC_NEED_FLR;
2592
2593         } else if (qlcnic_83xx_check(adapter)) {
2594                 qlcnic_83xx_check_vf(adapter, ent);
2595                 adapter->portnum = adapter->ahw->pci_func;
2596                 err = qlcnic_83xx_init(adapter, pci_using_dac);
2597                 if (err) {
2598                         switch (err) {
2599                         case -ENOTRECOVERABLE:
2600                                 dev_err(&pdev->dev, "Adapter initialization failed due to a faulty hardware\n");
2601                                 dev_err(&pdev->dev, "Please replace the adapter with new one and return the faulty adapter for repair\n");
2602                                 goto err_out_free_hw;
2603                         case -ENOMEM:
2604                                 dev_err(&pdev->dev, "Adapter initialization failed. Please reboot\n");
2605                                 goto err_out_free_hw;
2606                         case -EOPNOTSUPP:
2607                                 dev_err(&pdev->dev, "Adapter initialization failed\n");
2608                                 goto err_out_free_hw;
2609                         default:
2610                                 dev_err(&pdev->dev, "Adapter initialization failed. Driver will load in maintenance mode to recover the adapter using the application\n");
2611                                 goto err_out_maintenance_mode;
2612                         }
2613                 }
2614
2615                 if (qlcnic_sriov_vf_check(adapter))
2616                         return 0;
2617         } else {
2618                 dev_err(&pdev->dev,
2619                         "%s: failed. Please Reboot\n", __func__);
2620                 err = -ENODEV;
2621                 goto err_out_free_hw;
2622         }
2623
2624         if (qlcnic_read_mac_addr(adapter))
2625                 dev_warn(&pdev->dev, "failed to read mac addr\n");
2626
2627         qlcnic_read_phys_port_id(adapter);
2628
2629         if (adapter->portnum == 0) {
2630                 qlcnic_get_board_name(adapter, board_name);
2631
2632                 pr_info("%s: %s Board Chip rev 0x%x\n",
2633                         module_name(THIS_MODULE),
2634                         board_name, adapter->ahw->revision_id);
2635         }
2636
2637         if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2638             !!qlcnic_use_msi)
2639                 dev_warn(&pdev->dev,
2640                          "Device does not support MSI interrupts\n");
2641
2642         if (qlcnic_82xx_check(adapter)) {
2643                 qlcnic_dcb_enable(adapter->dcb);
2644                 qlcnic_dcb_get_info(adapter->dcb);
2645                 err = qlcnic_setup_intr(adapter);
2646
2647                 if (err) {
2648                         dev_err(&pdev->dev, "Failed to setup interrupt\n");
2649                         goto err_out_disable_msi;
2650                 }
2651         }
2652
2653         err = qlcnic_get_act_pci_func(adapter);
2654         if (err)
2655                 goto err_out_disable_mbx_intr;
2656
2657         if (adapter->portnum == 0)
2658                 qlcnic_set_drv_version(adapter);
2659
2660         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2661         if (err)
2662                 goto err_out_disable_mbx_intr;
2663
2664         pci_set_drvdata(pdev, adapter);
2665
2666         if (qlcnic_82xx_check(adapter))
2667                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2668                                      FW_POLL_DELAY);
2669
2670         switch (adapter->ahw->port_type) {
2671         case QLCNIC_GBE:
2672                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2673                                 adapter->netdev->name);
2674                 break;
2675         case QLCNIC_XGBE:
2676                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2677                                 adapter->netdev->name);
2678                 break;
2679         }
2680
2681         if (adapter->drv_mac_learn)
2682                 qlcnic_alloc_lb_filters_mem(adapter);
2683
2684         qlcnic_add_sysfs(adapter);
2685         qlcnic_register_hwmon_dev(adapter);
2686         return 0;
2687
2688 err_out_disable_mbx_intr:
2689         if (qlcnic_83xx_check(adapter))
2690                 qlcnic_83xx_free_mbx_intr(adapter);
2691
2692 err_out_disable_msi:
2693         qlcnic_teardown_intr(adapter);
2694         qlcnic_cancel_idc_work(adapter);
2695         qlcnic_clr_all_drv_state(adapter, 0);
2696
2697 err_out_free_hw:
2698         qlcnic_free_adapter_resources(adapter);
2699
2700 err_out_free_wq:
2701         destroy_workqueue(adapter->qlcnic_wq);
2702
2703 err_out_free_netdev:
2704         free_netdev(netdev);
2705
2706 err_out_iounmap:
2707         qlcnic_cleanup_pci_map(ahw);
2708
2709 err_out_free_hw_res:
2710         kfree(ahw);
2711
2712 err_out_free_res:
2713         pci_release_regions(pdev);
2714
2715 err_out_disable_pdev:
2716         pci_disable_device(pdev);
2717         return err;
2718
2719 err_out_maintenance_mode:
2720         set_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state);
2721         netdev->netdev_ops = &qlcnic_netdev_failed_ops;
2722         netdev->ethtool_ops = &qlcnic_ethtool_failed_ops;
2723         ahw->port_type = QLCNIC_XGBE;
2724
2725         if (qlcnic_83xx_check(adapter))
2726                 adapter->tgt_status_reg = NULL;
2727         else
2728                 ahw->board_type = QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS;
2729
2730         err = register_netdev(netdev);
2731
2732         if (err) {
2733                 dev_err(&pdev->dev, "Failed to register net device\n");
2734                 qlcnic_clr_all_drv_state(adapter, 0);
2735                 goto err_out_free_hw;
2736         }
2737
2738         pci_set_drvdata(pdev, adapter);
2739         qlcnic_add_sysfs(adapter);
2740
2741         return 0;
2742 }
2743
2744 static void qlcnic_remove(struct pci_dev *pdev)
2745 {
2746         struct qlcnic_adapter *adapter;
2747         struct net_device *netdev;
2748         struct qlcnic_hardware_context *ahw;
2749
2750         adapter = pci_get_drvdata(pdev);
2751         if (adapter == NULL)
2752                 return;
2753
2754         netdev = adapter->netdev;
2755
2756         qlcnic_cancel_idc_work(adapter);
2757         qlcnic_sriov_pf_disable(adapter);
2758         ahw = adapter->ahw;
2759
2760         unregister_netdev(netdev);
2761         qlcnic_sriov_cleanup(adapter);
2762
2763         if (qlcnic_83xx_check(adapter)) {
2764                 qlcnic_83xx_initialize_nic(adapter, 0);
2765                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2766                 qlcnic_83xx_free_mbx_intr(adapter);
2767                 qlcnic_83xx_detach_mailbox_work(adapter);
2768                 qlcnic_83xx_free_mailbox(ahw->mailbox);
2769                 kfree(ahw->fw_info);
2770         }
2771
2772         qlcnic_dcb_free(adapter->dcb);
2773         qlcnic_detach(adapter);
2774         kfree(adapter->npars);
2775         kfree(adapter->eswitch);
2776
2777         if (qlcnic_82xx_check(adapter))
2778                 qlcnic_clr_all_drv_state(adapter, 0);
2779
2780         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2781
2782         qlcnic_free_lb_filters_mem(adapter);
2783
2784         qlcnic_teardown_intr(adapter);
2785
2786         qlcnic_remove_sysfs(adapter);
2787
2788         qlcnic_unregister_hwmon_dev(adapter);
2789
2790         qlcnic_cleanup_pci_map(adapter->ahw);
2791
2792         qlcnic_release_firmware(adapter);
2793
2794         pci_disable_pcie_error_reporting(pdev);
2795         pci_release_regions(pdev);
2796         pci_disable_device(pdev);
2797
2798         if (adapter->qlcnic_wq) {
2799                 destroy_workqueue(adapter->qlcnic_wq);
2800                 adapter->qlcnic_wq = NULL;
2801         }
2802
2803         qlcnic_free_adapter_resources(adapter);
2804         kfree(ahw);
2805         free_netdev(netdev);
2806 }
2807
2808 static void qlcnic_shutdown(struct pci_dev *pdev)
2809 {
2810         if (__qlcnic_shutdown(pdev))
2811                 return;
2812
2813         pci_disable_device(pdev);
2814 }
2815
2816 #ifdef CONFIG_PM
2817 static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2818 {
2819         int retval;
2820
2821         retval = __qlcnic_shutdown(pdev);
2822         if (retval)
2823                 return retval;
2824
2825         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2826         return 0;
2827 }
2828
2829 static int qlcnic_resume(struct pci_dev *pdev)
2830 {
2831         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2832         int err;
2833
2834         err = pci_enable_device(pdev);
2835         if (err)
2836                 return err;
2837
2838         pci_set_power_state(pdev, PCI_D0);
2839         pci_set_master(pdev);
2840         pci_restore_state(pdev);
2841
2842         return  __qlcnic_resume(adapter);
2843 }
2844 #endif
2845
2846 static int qlcnic_open(struct net_device *netdev)
2847 {
2848         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2849         int err;
2850
2851         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
2852                 netdev_err(netdev, "%s: Device is in non-operational state\n",
2853                            __func__);
2854
2855                 return -EIO;
2856         }
2857
2858         netif_carrier_off(netdev);
2859
2860         err = qlcnic_attach(adapter);
2861         if (err)
2862                 return err;
2863
2864         err = __qlcnic_up(adapter, netdev);
2865         if (err)
2866                 qlcnic_detach(adapter);
2867
2868         return err;
2869 }
2870
2871 /*
2872  * qlcnic_close - Disables a network interface entry point
2873  */
2874 static int qlcnic_close(struct net_device *netdev)
2875 {
2876         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2877
2878         __qlcnic_down(adapter, netdev);
2879
2880         return 0;
2881 }
2882
2883 #define QLCNIC_VF_LB_BUCKET_SIZE 1
2884
2885 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2886 {
2887         void *head;
2888         int i;
2889         struct net_device *netdev = adapter->netdev;
2890         u32 filter_size = 0;
2891         u16 act_pci_func = 0;
2892
2893         if (adapter->fhash.fmax && adapter->fhash.fhead)
2894                 return;
2895
2896         act_pci_func = adapter->ahw->total_nic_func;
2897         spin_lock_init(&adapter->mac_learn_lock);
2898         spin_lock_init(&adapter->rx_mac_learn_lock);
2899
2900         if (qlcnic_sriov_vf_check(adapter)) {
2901                 filter_size = QLCNIC_83XX_SRIOV_VF_MAX_MAC - 1;
2902                 adapter->fhash.fbucket_size = QLCNIC_VF_LB_BUCKET_SIZE;
2903         } else if (qlcnic_82xx_check(adapter)) {
2904                 filter_size = QLCNIC_LB_MAX_FILTERS;
2905                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2906         } else {
2907                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2908                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2909         }
2910
2911         head = kcalloc(adapter->fhash.fbucket_size,
2912                        sizeof(struct hlist_head), GFP_ATOMIC);
2913
2914         if (!head)
2915                 return;
2916
2917         adapter->fhash.fmax = (filter_size / act_pci_func);
2918         adapter->fhash.fhead = head;
2919
2920         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2921                     act_pci_func, adapter->fhash.fmax);
2922
2923         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2924                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2925
2926         adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2927
2928         head = kcalloc(adapter->rx_fhash.fbucket_size,
2929                        sizeof(struct hlist_head), GFP_ATOMIC);
2930
2931         if (!head)
2932                 return;
2933
2934         adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2935         adapter->rx_fhash.fhead = head;
2936
2937         for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2938                 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2939 }
2940
2941 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2942 {
2943         if (adapter->fhash.fmax)
2944                 kfree(adapter->fhash.fhead);
2945
2946         adapter->fhash.fhead = NULL;
2947         adapter->fhash.fmax = 0;
2948
2949         if (adapter->rx_fhash.fmax)
2950                 kfree(adapter->rx_fhash.fhead);
2951
2952         adapter->rx_fhash.fmax = 0;
2953         adapter->rx_fhash.fhead = NULL;
2954 }
2955
2956 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2957 {
2958         struct net_device *netdev = adapter->netdev;
2959         u32 temp_state, temp_val, temp = 0;
2960         int rv = 0;
2961
2962         if (qlcnic_83xx_check(adapter))
2963                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2964
2965         if (qlcnic_82xx_check(adapter))
2966                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2967
2968         temp_state = qlcnic_get_temp_state(temp);
2969         temp_val = qlcnic_get_temp_val(temp);
2970
2971         if (temp_state == QLCNIC_TEMP_PANIC) {
2972                 dev_err(&netdev->dev,
2973                        "Device temperature %d degrees C exceeds"
2974                        " maximum allowed. Hardware has been shut down.\n",
2975                        temp_val);
2976                 rv = 1;
2977         } else if (temp_state == QLCNIC_TEMP_WARN) {
2978                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2979                         dev_err(&netdev->dev,
2980                                "Device temperature %d degrees C "
2981                                "exceeds operating range."
2982                                " Immediate action needed.\n",
2983                                temp_val);
2984                 }
2985         } else {
2986                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2987                         dev_info(&netdev->dev,
2988                                "Device temperature is now %d degrees C"
2989                                " in normal range.\n", temp_val);
2990                 }
2991         }
2992         adapter->ahw->temp = temp_state;
2993         return rv;
2994 }
2995
2996 static inline void dump_tx_ring_desc(struct qlcnic_host_tx_ring *tx_ring)
2997 {
2998         int i;
2999         struct cmd_desc_type0 *tx_desc_info;
3000
3001         for (i = 0; i < tx_ring->num_desc; i++) {
3002                 tx_desc_info = &tx_ring->desc_head[i];
3003                 pr_info("TX Desc: %d\n", i);
3004                 print_hex_dump(KERN_INFO, "TX: ", DUMP_PREFIX_OFFSET, 16, 1,
3005                                &tx_ring->desc_head[i],
3006                                sizeof(struct cmd_desc_type0), true);
3007         }
3008 }
3009
3010 static void qlcnic_dump_rings(struct qlcnic_adapter *adapter)
3011 {
3012         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
3013         struct net_device *netdev = adapter->netdev;
3014         struct qlcnic_host_rds_ring *rds_ring;
3015         struct qlcnic_host_sds_ring *sds_ring;
3016         struct qlcnic_host_tx_ring *tx_ring;
3017         int ring;
3018
3019         if (!netdev || !netif_running(netdev))
3020                 return;
3021
3022         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
3023                 rds_ring = &recv_ctx->rds_rings[ring];
3024                 if (!rds_ring)
3025                         continue;
3026                 netdev_info(netdev,
3027                             "rds_ring=%d crb_rcv_producer=%d producer=%u num_desc=%u\n",
3028                              ring, readl(rds_ring->crb_rcv_producer),
3029                              rds_ring->producer, rds_ring->num_desc);
3030         }
3031
3032         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3033                 sds_ring = &(recv_ctx->sds_rings[ring]);
3034                 if (!sds_ring)
3035                         continue;
3036                 netdev_info(netdev,
3037                             "sds_ring=%d crb_sts_consumer=%d consumer=%u crb_intr_mask=%d num_desc=%u\n",
3038                             ring, readl(sds_ring->crb_sts_consumer),
3039                             sds_ring->consumer, readl(sds_ring->crb_intr_mask),
3040                             sds_ring->num_desc);
3041         }
3042
3043         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3044                 tx_ring = &adapter->tx_ring[ring];
3045                 if (!tx_ring)
3046                         continue;
3047                 netdev_info(netdev, "Tx ring=%d Context Id=0x%x\n",
3048                             ring, tx_ring->ctx_id);
3049                 netdev_info(netdev,
3050                             "xmit_finished=%llu, xmit_called=%llu, xmit_on=%llu, xmit_off=%llu\n",
3051                             tx_ring->tx_stats.xmit_finished,
3052                             tx_ring->tx_stats.xmit_called,
3053                             tx_ring->tx_stats.xmit_on,
3054                             tx_ring->tx_stats.xmit_off);
3055
3056                 if (tx_ring->crb_intr_mask)
3057                         netdev_info(netdev, "crb_intr_mask=%d\n",
3058                                     readl(tx_ring->crb_intr_mask));
3059
3060                 netdev_info(netdev,
3061                             "hw_producer=%d, sw_producer=%d sw_consumer=%d, hw_consumer=%d\n",
3062                             readl(tx_ring->crb_cmd_producer),
3063                             tx_ring->producer, tx_ring->sw_consumer,
3064                             le32_to_cpu(*(tx_ring->hw_consumer)));
3065
3066                 netdev_info(netdev, "Total desc=%d, Available desc=%d\n",
3067                             tx_ring->num_desc, qlcnic_tx_avail(tx_ring));
3068
3069                 if (netif_msg_tx_err(adapter->ahw))
3070                         dump_tx_ring_desc(tx_ring);
3071         }
3072
3073 }
3074
3075 static void qlcnic_tx_timeout(struct net_device *netdev)
3076 {
3077         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3078
3079         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3080                 return;
3081
3082         qlcnic_dump_rings(adapter);
3083
3084         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS ||
3085             netif_msg_tx_err(adapter->ahw)) {
3086                 netdev_err(netdev, "Tx timeout, reset the adapter.\n");
3087                 if (qlcnic_82xx_check(adapter))
3088                         adapter->need_fw_reset = 1;
3089                 else if (qlcnic_83xx_check(adapter))
3090                         qlcnic_83xx_idc_request_reset(adapter,
3091                                                       QLCNIC_FORCE_FW_DUMP_KEY);
3092         } else {
3093                 netdev_err(netdev, "Tx timeout, reset adapter context.\n");
3094                 adapter->ahw->reset_context = 1;
3095         }
3096 }
3097
3098 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
3099 {
3100         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3101         struct net_device_stats *stats = &netdev->stats;
3102
3103         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
3104                 qlcnic_update_stats(adapter);
3105
3106         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
3107         stats->tx_packets = adapter->stats.xmitfinished;
3108         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
3109         stats->tx_bytes = adapter->stats.txbytes;
3110         stats->rx_dropped = adapter->stats.rxdropped;
3111         stats->tx_dropped = adapter->stats.txdropped;
3112
3113         return stats;
3114 }
3115
3116 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
3117 {
3118         u32 status;
3119
3120         status = readl(adapter->isr_int_vec);
3121
3122         if (!(status & adapter->ahw->int_vec_bit))
3123                 return IRQ_NONE;
3124
3125         /* check interrupt state machine, to be sure */
3126         status = readl(adapter->crb_int_state_reg);
3127         if (!ISR_LEGACY_INT_TRIGGERED(status))
3128                 return IRQ_NONE;
3129
3130         writel(0xffffffff, adapter->tgt_status_reg);
3131         /* read twice to ensure write is flushed */
3132         readl(adapter->isr_int_vec);
3133         readl(adapter->isr_int_vec);
3134
3135         return IRQ_HANDLED;
3136 }
3137
3138 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
3139 {
3140         struct qlcnic_host_sds_ring *sds_ring = data;
3141         struct qlcnic_adapter *adapter = sds_ring->adapter;
3142
3143         if (adapter->flags & QLCNIC_MSIX_ENABLED)
3144                 goto done;
3145         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
3146                 writel(0xffffffff, adapter->tgt_status_reg);
3147                 goto done;
3148         }
3149
3150         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3151                 return IRQ_NONE;
3152
3153 done:
3154         adapter->ahw->diag_cnt++;
3155         qlcnic_enable_sds_intr(adapter, sds_ring);
3156         return IRQ_HANDLED;
3157 }
3158
3159 static irqreturn_t qlcnic_intr(int irq, void *data)
3160 {
3161         struct qlcnic_host_sds_ring *sds_ring = data;
3162         struct qlcnic_adapter *adapter = sds_ring->adapter;
3163
3164         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3165                 return IRQ_NONE;
3166
3167         napi_schedule(&sds_ring->napi);
3168
3169         return IRQ_HANDLED;
3170 }
3171
3172 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
3173 {
3174         struct qlcnic_host_sds_ring *sds_ring = data;
3175         struct qlcnic_adapter *adapter = sds_ring->adapter;
3176
3177         /* clear interrupt */
3178         writel(0xffffffff, adapter->tgt_status_reg);
3179
3180         napi_schedule(&sds_ring->napi);
3181         return IRQ_HANDLED;
3182 }
3183
3184 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
3185 {
3186         struct qlcnic_host_sds_ring *sds_ring = data;
3187
3188         napi_schedule(&sds_ring->napi);
3189         return IRQ_HANDLED;
3190 }
3191
3192 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
3193 {
3194         struct qlcnic_host_tx_ring *tx_ring = data;
3195
3196         napi_schedule(&tx_ring->napi);
3197         return IRQ_HANDLED;
3198 }
3199
3200 #ifdef CONFIG_NET_POLL_CONTROLLER
3201 static void qlcnic_poll_controller(struct net_device *netdev)
3202 {
3203         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3204         struct qlcnic_host_sds_ring *sds_ring;
3205         struct qlcnic_recv_context *recv_ctx;
3206         struct qlcnic_host_tx_ring *tx_ring;
3207         int ring;
3208
3209         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3210                 return;
3211
3212         recv_ctx = adapter->recv_ctx;
3213
3214         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3215                 sds_ring = &recv_ctx->sds_rings[ring];
3216                 qlcnic_disable_sds_intr(adapter, sds_ring);
3217                 napi_schedule(&sds_ring->napi);
3218         }
3219
3220         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
3221                 /* Only Multi-Tx queue capable devices need to
3222                  * schedule NAPI for TX rings
3223                  */
3224                 if ((qlcnic_83xx_check(adapter) &&
3225                      (adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
3226                     (qlcnic_82xx_check(adapter) &&
3227                      !qlcnic_check_multi_tx(adapter)))
3228                         return;
3229
3230                 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3231                         tx_ring = &adapter->tx_ring[ring];
3232                         qlcnic_disable_tx_intr(adapter, tx_ring);
3233                         napi_schedule(&tx_ring->napi);
3234                 }
3235         }
3236 }
3237 #endif
3238
3239 static void
3240 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
3241 {
3242         u32 val;
3243
3244         val = adapter->portnum & 0xf;
3245         val |= encoding << 7;
3246         val |= (jiffies - adapter->dev_rst_time) << 8;
3247
3248         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
3249         adapter->dev_rst_time = jiffies;
3250 }
3251
3252 static int
3253 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
3254 {
3255         u32  val;
3256
3257         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
3258                         state != QLCNIC_DEV_NEED_QUISCENT);
3259
3260         if (qlcnic_api_lock(adapter))
3261                 return -EIO;
3262
3263         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3264
3265         if (state == QLCNIC_DEV_NEED_RESET)
3266                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3267         else if (state == QLCNIC_DEV_NEED_QUISCENT)
3268                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
3269
3270         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3271
3272         qlcnic_api_unlock(adapter);
3273
3274         return 0;
3275 }
3276
3277 static int
3278 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
3279 {
3280         u32  val;
3281
3282         if (qlcnic_api_lock(adapter))
3283                 return -EBUSY;
3284
3285         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3286         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3287         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3288
3289         qlcnic_api_unlock(adapter);
3290
3291         return 0;
3292 }
3293
3294 void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
3295 {
3296         u32  val;
3297
3298         if (qlcnic_api_lock(adapter))
3299                 goto err;
3300
3301         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3302         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
3303         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3304
3305         if (failed) {
3306                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3307                                     QLCNIC_DEV_FAILED);
3308                 dev_info(&adapter->pdev->dev,
3309                                 "Device state set to Failed. Please Reboot\n");
3310         } else if (!(val & 0x11111111))
3311                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3312                                     QLCNIC_DEV_COLD);
3313
3314         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3315         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3316         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3317
3318         qlcnic_api_unlock(adapter);
3319 err:
3320         adapter->fw_fail_cnt = 0;
3321         adapter->flags &= ~QLCNIC_FW_HANG;
3322         clear_bit(__QLCNIC_START_FW, &adapter->state);
3323         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3324 }
3325
3326 /* Grab api lock, before checking state */
3327 static int
3328 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
3329 {
3330         int act, state, active_mask;
3331         struct qlcnic_hardware_context *ahw = adapter->ahw;
3332
3333         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3334         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3335
3336         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
3337                 active_mask = (~(1 << (ahw->pci_func * 4)));
3338                 act = act & active_mask;
3339         }
3340
3341         if (((state & 0x11111111) == (act & 0x11111111)) ||
3342                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
3343                 return 0;
3344         else
3345                 return 1;
3346 }
3347
3348 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
3349 {
3350         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
3351
3352         if (val != QLCNIC_DRV_IDC_VER) {
3353                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
3354                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
3355         }
3356
3357         return 0;
3358 }
3359
3360 static int
3361 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
3362 {
3363         u32 val, prev_state;
3364         u8 dev_init_timeo = adapter->dev_init_timeo;
3365         u8 portnum = adapter->portnum;
3366         u8 ret;
3367
3368         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
3369                 return 1;
3370
3371         if (qlcnic_api_lock(adapter))
3372                 return -1;
3373
3374         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3375         if (!(val & (1 << (portnum * 4)))) {
3376                 QLC_DEV_SET_REF_CNT(val, portnum);
3377                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3378         }
3379
3380         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3381         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
3382
3383         switch (prev_state) {
3384         case QLCNIC_DEV_COLD:
3385                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3386                                     QLCNIC_DEV_INITIALIZING);
3387                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
3388                                     QLCNIC_DRV_IDC_VER);
3389                 qlcnic_idc_debug_info(adapter, 0);
3390                 qlcnic_api_unlock(adapter);
3391                 return 1;
3392
3393         case QLCNIC_DEV_READY:
3394                 ret = qlcnic_check_idc_ver(adapter);
3395                 qlcnic_api_unlock(adapter);
3396                 return ret;
3397
3398         case QLCNIC_DEV_NEED_RESET:
3399                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3400                 QLC_DEV_SET_RST_RDY(val, portnum);
3401                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3402                 break;
3403
3404         case QLCNIC_DEV_NEED_QUISCENT:
3405                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3406                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
3407                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3408                 break;
3409
3410         case QLCNIC_DEV_FAILED:
3411                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
3412                 qlcnic_api_unlock(adapter);
3413                 return -1;
3414
3415         case QLCNIC_DEV_INITIALIZING:
3416         case QLCNIC_DEV_QUISCENT:
3417                 break;
3418         }
3419
3420         qlcnic_api_unlock(adapter);
3421
3422         do {
3423                 msleep(1000);
3424                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3425
3426                 if (prev_state == QLCNIC_DEV_QUISCENT)
3427                         continue;
3428         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
3429
3430         if (!dev_init_timeo) {
3431                 dev_err(&adapter->pdev->dev,
3432                         "Waiting for device to initialize timeout\n");
3433                 return -1;
3434         }
3435
3436         if (qlcnic_api_lock(adapter))
3437                 return -1;
3438
3439         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3440         QLC_DEV_CLR_RST_QSCNT(val, portnum);
3441         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3442
3443         ret = qlcnic_check_idc_ver(adapter);
3444         qlcnic_api_unlock(adapter);
3445
3446         return ret;
3447 }
3448
3449 static void
3450 qlcnic_fwinit_work(struct work_struct *work)
3451 {
3452         struct qlcnic_adapter *adapter = container_of(work,
3453                         struct qlcnic_adapter, fw_work.work);
3454         u32 dev_state = 0xf;
3455         u32 val;
3456
3457         if (qlcnic_api_lock(adapter))
3458                 goto err_ret;
3459
3460         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3461         if (dev_state == QLCNIC_DEV_QUISCENT ||
3462             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3463                 qlcnic_api_unlock(adapter);
3464                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
3465                                                 FW_POLL_DELAY * 2);
3466                 return;
3467         }
3468
3469         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
3470                 qlcnic_api_unlock(adapter);
3471                 goto wait_npar;
3472         }
3473
3474         if (dev_state == QLCNIC_DEV_INITIALIZING ||
3475             dev_state == QLCNIC_DEV_READY) {
3476                 dev_info(&adapter->pdev->dev, "Detected state change from "
3477                                 "DEV_NEED_RESET, skipping ack check\n");
3478                 goto skip_ack_check;
3479         }
3480
3481         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
3482                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
3483                                         adapter->reset_ack_timeo);
3484                 goto skip_ack_check;
3485         }
3486
3487         if (!qlcnic_check_drv_state(adapter)) {
3488 skip_ack_check:
3489                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3490
3491                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
3492                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3493                                             QLCNIC_DEV_INITIALIZING);
3494                         set_bit(__QLCNIC_START_FW, &adapter->state);
3495                         QLCDB(adapter, DRV, "Restarting fw\n");
3496                         qlcnic_idc_debug_info(adapter, 0);
3497                         val = QLC_SHARED_REG_RD32(adapter,
3498                                                   QLCNIC_CRB_DRV_STATE);
3499                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3500                         QLC_SHARED_REG_WR32(adapter,
3501                                             QLCNIC_CRB_DRV_STATE, val);
3502                 }
3503
3504                 qlcnic_api_unlock(adapter);
3505
3506                 rtnl_lock();
3507                 if (qlcnic_check_fw_dump_state(adapter) &&
3508                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3509                         QLCDB(adapter, DRV, "Take FW dump\n");
3510                         qlcnic_dump_fw(adapter);
3511                         adapter->flags |= QLCNIC_FW_HANG;
3512                 }
3513                 rtnl_unlock();
3514
3515                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
3516                 if (!adapter->nic_ops->start_firmware(adapter)) {
3517                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3518                         adapter->fw_wait_cnt = 0;
3519                         return;
3520                 }
3521                 goto err_ret;
3522         }
3523
3524         qlcnic_api_unlock(adapter);
3525
3526 wait_npar:
3527         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3528         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
3529
3530         switch (dev_state) {
3531         case QLCNIC_DEV_READY:
3532                 if (!qlcnic_start_firmware(adapter)) {
3533                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3534                         adapter->fw_wait_cnt = 0;
3535                         return;
3536                 }
3537         case QLCNIC_DEV_FAILED:
3538                 break;
3539         default:
3540                 qlcnic_schedule_work(adapter,
3541                         qlcnic_fwinit_work, FW_POLL_DELAY);
3542                 return;
3543         }
3544
3545 err_ret:
3546         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
3547                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
3548         netif_device_attach(adapter->netdev);
3549         qlcnic_clr_all_drv_state(adapter, 0);
3550 }
3551
3552 static void
3553 qlcnic_detach_work(struct work_struct *work)
3554 {
3555         struct qlcnic_adapter *adapter = container_of(work,
3556                         struct qlcnic_adapter, fw_work.work);
3557         struct net_device *netdev = adapter->netdev;
3558         u32 status;
3559
3560         netif_device_detach(netdev);
3561
3562         /* Dont grab rtnl lock during Quiscent mode */
3563         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3564                 if (netif_running(netdev))
3565                         __qlcnic_down(adapter, netdev);
3566         } else
3567                 qlcnic_down(adapter, netdev);
3568
3569         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3570
3571         if (status & QLCNIC_RCODE_FATAL_ERROR) {
3572                 dev_err(&adapter->pdev->dev,
3573                         "Detaching the device: peg halt status1=0x%x\n",
3574                                         status);
3575
3576                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
3577                         dev_err(&adapter->pdev->dev,
3578                         "On board active cooling fan failed. "
3579                                 "Device has been halted.\n");
3580                         dev_err(&adapter->pdev->dev,
3581                                 "Replace the adapter.\n");
3582                 }
3583
3584                 goto err_ret;
3585         }
3586
3587         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
3588                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
3589                         adapter->ahw->temp);
3590                 goto err_ret;
3591         }
3592
3593         /* Dont ack if this instance is the reset owner */
3594         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3595                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
3596                         dev_err(&adapter->pdev->dev,
3597                                 "Failed to set driver state,"
3598                                         "detaching the device.\n");
3599                         goto err_ret;
3600                 }
3601         }
3602
3603         adapter->fw_wait_cnt = 0;
3604
3605         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3606
3607         return;
3608
3609 err_ret:
3610         netif_device_attach(netdev);
3611         qlcnic_clr_all_drv_state(adapter, 1);
3612 }
3613
3614 /*Transit NPAR state to NON Operational */
3615 static void
3616 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3617 {
3618         u32 state;
3619
3620         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3621         if (state == QLCNIC_DEV_NPAR_NON_OPER)
3622                 return;
3623
3624         if (qlcnic_api_lock(adapter))
3625                 return;
3626         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3627                             QLCNIC_DEV_NPAR_NON_OPER);
3628         qlcnic_api_unlock(adapter);
3629 }
3630
3631 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter,
3632                                           u32 key)
3633 {
3634         u32 state, xg_val = 0, gb_val = 0;
3635
3636         qlcnic_xg_set_xg0_mask(xg_val);
3637         qlcnic_xg_set_xg1_mask(xg_val);
3638         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3639         qlcnic_gb_set_gb0_mask(gb_val);
3640         qlcnic_gb_set_gb1_mask(gb_val);
3641         qlcnic_gb_set_gb2_mask(gb_val);
3642         qlcnic_gb_set_gb3_mask(gb_val);
3643         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3644         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3645                                 " on all ports\n");
3646         adapter->need_fw_reset = 1;
3647
3648         if (qlcnic_api_lock(adapter))
3649                 return;
3650
3651         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3652
3653         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
3654                 netdev_err(adapter->netdev, "%s: Device is in non-operational state\n",
3655                            __func__);
3656                 qlcnic_api_unlock(adapter);
3657
3658                 return;
3659         }
3660
3661         if (state == QLCNIC_DEV_READY) {
3662                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3663                                     QLCNIC_DEV_NEED_RESET);
3664                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3665                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3666                 qlcnic_idc_debug_info(adapter, 0);
3667         }
3668
3669         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3670                             QLCNIC_DEV_NPAR_NON_OPER);
3671         qlcnic_api_unlock(adapter);
3672 }
3673
3674 /* Transit to NPAR READY state from NPAR NOT READY state */
3675 static void
3676 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3677 {
3678         if (qlcnic_api_lock(adapter))
3679                 return;
3680
3681         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3682                             QLCNIC_DEV_NPAR_OPER);
3683         QLCDB(adapter, DRV, "NPAR operational state set\n");
3684
3685         qlcnic_api_unlock(adapter);
3686 }
3687
3688 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3689                           work_func_t func, int delay)
3690 {
3691         if (test_bit(__QLCNIC_AER, &adapter->state))
3692                 return;
3693
3694         INIT_DELAYED_WORK(&adapter->fw_work, func);
3695         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3696                            round_jiffies_relative(delay));
3697 }
3698
3699 static void
3700 qlcnic_attach_work(struct work_struct *work)
3701 {
3702         struct qlcnic_adapter *adapter = container_of(work,
3703                                 struct qlcnic_adapter, fw_work.work);
3704         struct net_device *netdev = adapter->netdev;
3705         u32 npar_state;
3706
3707         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3708                 npar_state = QLC_SHARED_REG_RD32(adapter,
3709                                                  QLCNIC_CRB_DEV_NPAR_STATE);
3710                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3711                         qlcnic_clr_all_drv_state(adapter, 0);
3712                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3713                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
3714                                                         FW_POLL_DELAY);
3715                 else
3716                         goto attach;
3717                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3718                 return;
3719         }
3720 attach:
3721         qlcnic_dcb_get_info(adapter->dcb);
3722
3723         if (netif_running(netdev)) {
3724                 if (qlcnic_up(adapter, netdev))
3725                         goto done;
3726
3727                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3728         }
3729
3730 done:
3731         netif_device_attach(netdev);
3732         adapter->fw_fail_cnt = 0;
3733         adapter->flags &= ~QLCNIC_FW_HANG;
3734         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3735         if (adapter->portnum == 0)
3736                 qlcnic_set_drv_version(adapter);
3737
3738         if (!qlcnic_clr_drv_state(adapter))
3739                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3740                                                         FW_POLL_DELAY);
3741 }
3742
3743 static int
3744 qlcnic_check_health(struct qlcnic_adapter *adapter)
3745 {
3746         struct qlcnic_hardware_context *ahw = adapter->ahw;
3747         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
3748         u32 state = 0, heartbeat;
3749         u32 peg_status;
3750         int err = 0;
3751
3752         if (qlcnic_check_temp(adapter))
3753                 goto detach;
3754
3755         if (adapter->need_fw_reset)
3756                 qlcnic_dev_request_reset(adapter, 0);
3757
3758         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3759         if (state == QLCNIC_DEV_NEED_RESET) {
3760                 qlcnic_set_npar_non_operational(adapter);
3761                 adapter->need_fw_reset = 1;
3762         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3763                 goto detach;
3764
3765         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3766         if (heartbeat != adapter->heartbeat) {
3767                 adapter->heartbeat = heartbeat;
3768                 adapter->fw_fail_cnt = 0;
3769                 if (adapter->need_fw_reset)
3770                         goto detach;
3771
3772                 if (ahw->reset_context && qlcnic_auto_fw_reset)
3773                         qlcnic_reset_hw_context(adapter);
3774
3775                 return 0;
3776         }
3777
3778         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3779                 return 0;
3780
3781         adapter->flags |= QLCNIC_FW_HANG;
3782
3783         qlcnic_dev_request_reset(adapter, 0);
3784
3785         if (qlcnic_auto_fw_reset)
3786                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3787
3788         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3789         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3790         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3791                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3792                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3793                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3794                         "PEG_NET_4_PC: 0x%x\n",
3795                         peg_status,
3796                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3797                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3798                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3799                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3800                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3801                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3802         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3803                 dev_err(&adapter->pdev->dev,
3804                         "Firmware aborted with error code 0x00006700. "
3805                                 "Device is being reset.\n");
3806 detach:
3807         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3808                 QLCNIC_DEV_NEED_RESET;
3809
3810         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3811                                                       &adapter->state)) {
3812
3813                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3814                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3815         } else if (!qlcnic_auto_fw_reset && fw_dump->enable &&
3816                    adapter->flags & QLCNIC_FW_RESET_OWNER) {
3817                 qlcnic_dump_fw(adapter);
3818         }
3819
3820         return 1;
3821 }
3822
3823 void qlcnic_fw_poll_work(struct work_struct *work)
3824 {
3825         struct qlcnic_adapter *adapter = container_of(work,
3826                                 struct qlcnic_adapter, fw_work.work);
3827
3828         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3829                 goto reschedule;
3830
3831
3832         if (qlcnic_check_health(adapter))
3833                 return;
3834
3835         if (adapter->fhash.fnum)
3836                 qlcnic_prune_lb_filters(adapter);
3837
3838 reschedule:
3839         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3840 }
3841
3842 static int qlcnic_is_first_func(struct pci_dev *pdev)
3843 {
3844         struct pci_dev *oth_pdev;
3845         int val = pdev->devfn;
3846
3847         while (val-- > 0) {
3848                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3849                         (pdev->bus), pdev->bus->number,
3850                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3851                 if (!oth_pdev)
3852                         continue;
3853
3854                 if (oth_pdev->current_state != PCI_D3cold) {
3855                         pci_dev_put(oth_pdev);
3856                         return 0;
3857                 }
3858                 pci_dev_put(oth_pdev);
3859         }
3860         return 1;
3861 }
3862
3863 static int qlcnic_attach_func(struct pci_dev *pdev)
3864 {
3865         int err, first_func;
3866         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3867         struct net_device *netdev = adapter->netdev;
3868
3869         pdev->error_state = pci_channel_io_normal;
3870
3871         err = pci_enable_device(pdev);
3872         if (err)
3873                 return err;
3874
3875         pci_set_master(pdev);
3876         pci_restore_state(pdev);
3877
3878         first_func = qlcnic_is_first_func(pdev);
3879
3880         if (qlcnic_api_lock(adapter))
3881                 return -EINVAL;
3882
3883         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3884                 adapter->need_fw_reset = 1;
3885                 set_bit(__QLCNIC_START_FW, &adapter->state);
3886                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3887                                     QLCNIC_DEV_INITIALIZING);
3888                 QLCDB(adapter, DRV, "Restarting fw\n");
3889         }
3890         qlcnic_api_unlock(adapter);
3891
3892         err = qlcnic_start_firmware(adapter);
3893         if (err)
3894                 return err;
3895
3896         qlcnic_clr_drv_state(adapter);
3897         kfree(adapter->msix_entries);
3898         adapter->msix_entries = NULL;
3899         err = qlcnic_setup_intr(adapter);
3900
3901         if (err) {
3902                 kfree(adapter->msix_entries);
3903                 netdev_err(netdev, "failed to setup interrupt\n");
3904                 return err;
3905         }
3906
3907         if (netif_running(netdev)) {
3908                 err = qlcnic_attach(adapter);
3909                 if (err) {
3910                         qlcnic_clr_all_drv_state(adapter, 1);
3911                         clear_bit(__QLCNIC_AER, &adapter->state);
3912                         netif_device_attach(netdev);
3913                         return err;
3914                 }
3915
3916                 err = qlcnic_up(adapter, netdev);
3917                 if (err)
3918                         goto done;
3919
3920                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3921         }
3922  done:
3923         netif_device_attach(netdev);
3924         return err;
3925 }
3926
3927 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
3928                                                       pci_channel_state_t state)
3929 {
3930         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3931         struct net_device *netdev = adapter->netdev;
3932
3933         if (state == pci_channel_io_perm_failure)
3934                 return PCI_ERS_RESULT_DISCONNECT;
3935
3936         if (state == pci_channel_io_normal)
3937                 return PCI_ERS_RESULT_RECOVERED;
3938
3939         set_bit(__QLCNIC_AER, &adapter->state);
3940         netif_device_detach(netdev);
3941
3942         cancel_delayed_work_sync(&adapter->fw_work);
3943
3944         if (netif_running(netdev))
3945                 qlcnic_down(adapter, netdev);
3946
3947         qlcnic_detach(adapter);
3948         qlcnic_teardown_intr(adapter);
3949
3950         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3951
3952         pci_save_state(pdev);
3953         pci_disable_device(pdev);
3954
3955         return PCI_ERS_RESULT_NEED_RESET;
3956 }
3957
3958 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
3959 {
3960         pci_ers_result_t res;
3961
3962         rtnl_lock();
3963         res = qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3964                                          PCI_ERS_RESULT_RECOVERED;
3965         rtnl_unlock();
3966
3967         return res;
3968 }
3969
3970 static void qlcnic_82xx_io_resume(struct pci_dev *pdev)
3971 {
3972         u32 state;
3973         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3974
3975         pci_cleanup_aer_uncorrect_error_status(pdev);
3976         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3977         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3978                                                             &adapter->state))
3979                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3980                                      FW_POLL_DELAY);
3981 }
3982
3983 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3984                                                  pci_channel_state_t state)
3985 {
3986         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3987         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3988
3989         if (hw_ops->io_error_detected) {
3990                 return hw_ops->io_error_detected(pdev, state);
3991         } else {
3992                 dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
3993                 return PCI_ERS_RESULT_DISCONNECT;
3994         }
3995 }
3996
3997 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3998 {
3999         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
4000         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
4001
4002         if (hw_ops->io_slot_reset) {
4003                 return hw_ops->io_slot_reset(pdev);
4004         } else {
4005                 dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
4006                 return PCI_ERS_RESULT_DISCONNECT;
4007         }
4008 }
4009
4010 static void qlcnic_io_resume(struct pci_dev *pdev)
4011 {
4012         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
4013         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
4014
4015         if (hw_ops->io_resume)
4016                 hw_ops->io_resume(pdev);
4017         else
4018                 dev_err(&pdev->dev, "AER resume handler not registered.\n");
4019 }
4020
4021
4022 static int
4023 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
4024 {
4025         int err;
4026
4027         err = qlcnic_can_start_firmware(adapter);
4028         if (err)
4029                 return err;
4030
4031         err = qlcnic_check_npar_opertional(adapter);
4032         if (err)
4033                 return err;
4034
4035         err = qlcnic_initialize_nic(adapter);
4036         if (err)
4037                 return err;
4038
4039         qlcnic_check_options(adapter);
4040
4041         err = qlcnic_set_eswitch_port_config(adapter);
4042         if (err)
4043                 return err;
4044
4045         adapter->need_fw_reset = 0;
4046
4047         return err;
4048 }
4049
4050 int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt,
4051                           int queue_type)
4052 {
4053         struct net_device *netdev = adapter->netdev;
4054         u8 max_hw_rings = 0;
4055         char buf[8];
4056         int cur_rings;
4057
4058         if (queue_type == QLCNIC_RX_QUEUE) {
4059                 max_hw_rings = adapter->max_sds_rings;
4060                 cur_rings = adapter->drv_sds_rings;
4061                 strcpy(buf, "SDS");
4062         } else if (queue_type == QLCNIC_TX_QUEUE) {
4063                 max_hw_rings = adapter->max_tx_rings;
4064                 cur_rings = adapter->drv_tx_rings;
4065                 strcpy(buf, "Tx");
4066         }
4067
4068         if (!is_power_of_2(ring_cnt)) {
4069                 netdev_err(netdev, "%s rings value should be a power of 2\n",
4070                            buf);
4071                 return -EINVAL;
4072         }
4073
4074         if (qlcnic_82xx_check(adapter) && (queue_type == QLCNIC_TX_QUEUE) &&
4075             !qlcnic_check_multi_tx(adapter)) {
4076                         netdev_err(netdev, "No Multi Tx queue support\n");
4077                         return -EINVAL;
4078         }
4079
4080         if (ring_cnt > num_online_cpus()) {
4081                 netdev_err(netdev,
4082                            "%s value[%u] should not be higher than, number of online CPUs\n",
4083                            buf, num_online_cpus());
4084                 return -EINVAL;
4085         }
4086
4087         return 0;
4088 }
4089
4090 int qlcnic_setup_rings(struct qlcnic_adapter *adapter)
4091 {
4092         struct net_device *netdev = adapter->netdev;
4093         u8 tx_rings, rx_rings;
4094         int err;
4095
4096         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
4097                 return -EBUSY;
4098
4099         tx_rings = adapter->drv_tss_rings;
4100         rx_rings = adapter->drv_rss_rings;
4101
4102         netif_device_detach(netdev);
4103
4104         err = qlcnic_set_real_num_queues(adapter, tx_rings, rx_rings);
4105         if (err)
4106                 goto done;
4107
4108         if (netif_running(netdev))
4109                 __qlcnic_down(adapter, netdev);
4110
4111         qlcnic_detach(adapter);
4112
4113         if (qlcnic_83xx_check(adapter)) {
4114                 qlcnic_83xx_free_mbx_intr(adapter);
4115                 qlcnic_83xx_enable_mbx_poll(adapter);
4116         }
4117
4118         qlcnic_teardown_intr(adapter);
4119
4120         err = qlcnic_setup_intr(adapter);
4121         if (err) {
4122                 kfree(adapter->msix_entries);
4123                 netdev_err(netdev, "failed to setup interrupt\n");
4124                 return err;
4125         }
4126
4127         /* Check if we need to update real_num_{tx|rx}_queues because
4128          * qlcnic_setup_intr() may change Tx/Rx rings size
4129          */
4130         if ((tx_rings != adapter->drv_tx_rings) ||
4131             (rx_rings != adapter->drv_sds_rings)) {
4132                 err = qlcnic_set_real_num_queues(adapter,
4133                                                  adapter->drv_tx_rings,
4134                                                  adapter->drv_sds_rings);
4135                 if (err)
4136                         goto done;
4137         }
4138
4139         if (qlcnic_83xx_check(adapter)) {
4140                 qlcnic_83xx_initialize_nic(adapter, 1);
4141                 err = qlcnic_83xx_setup_mbx_intr(adapter);
4142                 qlcnic_83xx_disable_mbx_poll(adapter);
4143                 if (err) {
4144                         dev_err(&adapter->pdev->dev,
4145                                 "failed to setup mbx interrupt\n");
4146                         goto done;
4147                 }
4148         }
4149
4150         if (netif_running(netdev)) {
4151                 err = qlcnic_attach(adapter);
4152                 if (err)
4153                         goto done;
4154                 err = __qlcnic_up(adapter, netdev);
4155                 if (err)
4156                         goto done;
4157                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
4158         }
4159 done:
4160         netif_device_attach(netdev);
4161         clear_bit(__QLCNIC_RESETTING, &adapter->state);
4162         return err;
4163 }
4164
4165 #ifdef CONFIG_INET
4166
4167 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4168
4169 static void
4170 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4171                         struct net_device *dev, unsigned long event)
4172 {
4173         struct in_device *indev;
4174
4175         indev = in_dev_get(dev);
4176         if (!indev)
4177                 return;
4178
4179         for_ifa(indev) {
4180                 switch (event) {
4181                 case NETDEV_UP:
4182                         qlcnic_config_ipaddr(adapter,
4183                                         ifa->ifa_address, QLCNIC_IP_UP);
4184                         break;
4185                 case NETDEV_DOWN:
4186                         qlcnic_config_ipaddr(adapter,
4187                                         ifa->ifa_address, QLCNIC_IP_DOWN);
4188                         break;
4189                 default:
4190                         break;
4191                 }
4192         } endfor_ifa(indev);
4193
4194         in_dev_put(indev);
4195 }
4196
4197 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4198 {
4199         struct qlcnic_adapter *adapter = netdev_priv(netdev);
4200         struct net_device *dev;
4201         u16 vid;
4202
4203         qlcnic_config_indev_addr(adapter, netdev, event);
4204
4205         rcu_read_lock();
4206         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
4207                 dev = __vlan_find_dev_deep_rcu(netdev, htons(ETH_P_8021Q), vid);
4208                 if (!dev)
4209                         continue;
4210                 qlcnic_config_indev_addr(adapter, dev, event);
4211         }
4212         rcu_read_unlock();
4213 }
4214
4215 static int qlcnic_netdev_event(struct notifier_block *this,
4216                                  unsigned long event, void *ptr)
4217 {
4218         struct qlcnic_adapter *adapter;
4219         struct net_device *dev = netdev_notifier_info_to_dev(ptr);
4220
4221 recheck:
4222         if (dev == NULL)
4223                 goto done;
4224
4225         if (is_vlan_dev(dev)) {
4226                 dev = vlan_dev_real_dev(dev);
4227                 goto recheck;
4228         }
4229
4230         if (!is_qlcnic_netdev(dev))
4231                 goto done;
4232
4233         adapter = netdev_priv(dev);
4234
4235         if (!adapter)
4236                 goto done;
4237
4238         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4239                 goto done;
4240
4241         qlcnic_config_indev_addr(adapter, dev, event);
4242 done:
4243         return NOTIFY_DONE;
4244 }
4245
4246 static int
4247 qlcnic_inetaddr_event(struct notifier_block *this,
4248                 unsigned long event, void *ptr)
4249 {
4250         struct qlcnic_adapter *adapter;
4251         struct net_device *dev;
4252
4253         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4254
4255         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4256
4257 recheck:
4258         if (dev == NULL)
4259                 goto done;
4260
4261         if (is_vlan_dev(dev)) {
4262                 dev = vlan_dev_real_dev(dev);
4263                 goto recheck;
4264         }
4265
4266         if (!is_qlcnic_netdev(dev))
4267                 goto done;
4268
4269         adapter = netdev_priv(dev);
4270
4271         if (!adapter)
4272                 goto done;
4273
4274         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4275                 goto done;
4276
4277         switch (event) {
4278         case NETDEV_UP:
4279                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4280
4281                 break;
4282         case NETDEV_DOWN:
4283                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4284
4285                 break;
4286         default:
4287                 break;
4288         }
4289
4290 done:
4291         return NOTIFY_DONE;
4292 }
4293
4294 static struct notifier_block    qlcnic_netdev_cb = {
4295         .notifier_call = qlcnic_netdev_event,
4296 };
4297
4298 static struct notifier_block qlcnic_inetaddr_cb = {
4299         .notifier_call = qlcnic_inetaddr_event,
4300 };
4301 #else
4302 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4303 { }
4304 #endif
4305 static const struct pci_error_handlers qlcnic_err_handler = {
4306         .error_detected = qlcnic_io_error_detected,
4307         .slot_reset = qlcnic_io_slot_reset,
4308         .resume = qlcnic_io_resume,
4309 };
4310
4311 static struct pci_driver qlcnic_driver = {
4312         .name = qlcnic_driver_name,
4313         .id_table = qlcnic_pci_tbl,
4314         .probe = qlcnic_probe,
4315         .remove = qlcnic_remove,
4316 #ifdef CONFIG_PM
4317         .suspend = qlcnic_suspend,
4318         .resume = qlcnic_resume,
4319 #endif
4320         .shutdown = qlcnic_shutdown,
4321         .err_handler = &qlcnic_err_handler,
4322 #ifdef CONFIG_QLCNIC_SRIOV
4323         .sriov_configure = qlcnic_pci_sriov_configure,
4324 #endif
4325
4326 };
4327
4328 static int __init qlcnic_init_module(void)
4329 {
4330         int ret;
4331
4332         printk(KERN_INFO "%s\n", qlcnic_driver_string);
4333
4334 #ifdef CONFIG_INET
4335         register_netdevice_notifier(&qlcnic_netdev_cb);
4336         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4337 #endif
4338
4339         ret = pci_register_driver(&qlcnic_driver);
4340         if (ret) {
4341 #ifdef CONFIG_INET
4342                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4343                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4344 #endif
4345         }
4346
4347         return ret;
4348 }
4349
4350 module_init(qlcnic_init_module);
4351
4352 static void __exit qlcnic_exit_module(void)
4353 {
4354         pci_unregister_driver(&qlcnic_driver);
4355
4356 #ifdef CONFIG_INET
4357         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4358         unregister_netdevice_notifier(&qlcnic_netdev_cb);
4359 #endif
4360 }
4361
4362 module_exit(qlcnic_exit_module);