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