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
 439         if (!adapter->fdb_mac_learn)
 440                 return ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
 441
 442         if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
 443             qlcnic_sriov_check(adapter))
 444                 idx = ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
 445
 446         return idx;
 447 }
 448
 449 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
 450 {
 451         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
 452                 usleep_range(10000, 11000);
 453
 454         if (!adapter->fw_work.work.func)
 455                 return;
 456
 457         cancel_delayed_work_sync(&adapter->fw_work);
 458 }
 459
 460 static int qlcnic_get_phys_port_id(struct net_device *netdev,
 461                                    struct netdev_phys_item_id *ppid)
 462 {
 463         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 464         struct qlcnic_hardware_context *ahw = adapter->ahw;
 465
 466         if (!(adapter->flags & QLCNIC_HAS_PHYS_PORT_ID))
 467                 return -EOPNOTSUPP;
 468
 469         ppid->id_len = sizeof(ahw->phys_port_id);
 470         memcpy(ppid->id, ahw->phys_port_id, ppid->id_len);
 471
 472         return 0;
 473 }
 474
 475 static void qlcnic_add_vxlan_port(struct net_device *netdev,
 476                                   struct udp_tunnel_info *ti)
 477 {
 478         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 479         struct qlcnic_hardware_context *ahw = adapter->ahw;
 480
 481         if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
 482                 return;
 483
 484         /* Adapter supports only one VXLAN port. Use very first port
 485          * for enabling offload
 486          */
 487         if (!qlcnic_encap_rx_offload(adapter))
 488                 return;
 489         if (!ahw->vxlan_port_count) {
 490                 ahw->vxlan_port_count = 1;
 491                 ahw->vxlan_port = ntohs(ti->port);
 492                 adapter->flags |= QLCNIC_ADD_VXLAN_PORT;
 493                 return;
 494         }
 495         if (ahw->vxlan_port == ntohs(ti->port))
 496                 ahw->vxlan_port_count++;
 497
 498 }
 499
 500 static void qlcnic_del_vxlan_port(struct net_device *netdev,
 501                                   struct udp_tunnel_info *ti)
 502 {
 503         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 504         struct qlcnic_hardware_context *ahw = adapter->ahw;
 505
 506         if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
 507                 return;
 508
 509         if (!qlcnic_encap_rx_offload(adapter) || !ahw->vxlan_port_count ||
 510             (ahw->vxlan_port != ntohs(ti->port)))
 511                 return;
 512
 513         ahw->vxlan_port_count--;
 514         if (!ahw->vxlan_port_count)
 515                 adapter->flags |= QLCNIC_DEL_VXLAN_PORT;
 516 }
 517
 518 static netdev_features_t qlcnic_features_check(struct sk_buff *skb,
 519                                                struct net_device *dev,
 520                                                netdev_features_t features)
 521 {
 522         features = vlan_features_check(skb, features);
 523         return vxlan_features_check(skb, features);
 524 }
 525
 526 static const struct net_device_ops qlcnic_netdev_ops = {
 527         .ndo_open          = qlcnic_open,
 528         .ndo_stop          = qlcnic_close,
 529         .ndo_start_xmit    = qlcnic_xmit_frame,
 530         .ndo_get_stats     = qlcnic_get_stats,
 531         .ndo_validate_addr = eth_validate_addr,
 532         .ndo_set_rx_mode   = qlcnic_set_multi,
 533         .ndo_set_mac_address    = qlcnic_set_mac,
 534         .ndo_change_mtu    = qlcnic_change_mtu,
 535         .ndo_fix_features  = qlcnic_fix_features,
 536         .ndo_set_features  = qlcnic_set_features,
 537         .ndo_tx_timeout    = qlcnic_tx_timeout,
 538         .ndo_vlan_rx_add_vid    = qlcnic_vlan_rx_add,
 539         .ndo_vlan_rx_kill_vid   = qlcnic_vlan_rx_del,
 540         .ndo_fdb_add            = qlcnic_fdb_add,
 541         .ndo_fdb_del            = qlcnic_fdb_del,
 542         .ndo_fdb_dump           = qlcnic_fdb_dump,
 543         .ndo_get_phys_port_id   = qlcnic_get_phys_port_id,
 544         .ndo_udp_tunnel_add     = qlcnic_add_vxlan_port,
 545         .ndo_udp_tunnel_del     = qlcnic_del_vxlan_port,
 546         .ndo_features_check     = qlcnic_features_check,
 547 #ifdef CONFIG_NET_POLL_CONTROLLER
 548         .ndo_poll_controller = qlcnic_poll_controller,
 549 #endif
 550 #ifdef CONFIG_QLCNIC_SRIOV
 551         .ndo_set_vf_mac         = qlcnic_sriov_set_vf_mac,
 552         .ndo_set_vf_rate        = qlcnic_sriov_set_vf_tx_rate,
 553         .ndo_get_vf_config      = qlcnic_sriov_get_vf_config,
 554         .ndo_set_vf_vlan        = qlcnic_sriov_set_vf_vlan,
 555         .ndo_set_vf_spoofchk    = qlcnic_sriov_set_vf_spoofchk,
 556 #endif
 557 };
 558
 559 static const struct net_device_ops qlcnic_netdev_failed_ops = {
 560         .ndo_open          = qlcnic_open,
 561 };
 562
 563 static struct qlcnic_nic_template qlcnic_ops = {
 564         .config_bridged_mode    = qlcnic_config_bridged_mode,
 565         .config_led             = qlcnic_82xx_config_led,
 566         .start_firmware         = qlcnic_82xx_start_firmware,
 567         .request_reset          = qlcnic_82xx_dev_request_reset,
 568         .cancel_idc_work        = qlcnic_82xx_cancel_idc_work,
 569         .napi_add               = qlcnic_82xx_napi_add,
 570         .napi_del               = qlcnic_82xx_napi_del,
 571         .config_ipaddr          = qlcnic_82xx_config_ipaddr,
 572         .shutdown               = qlcnic_82xx_shutdown,
 573         .resume                 = qlcnic_82xx_resume,
 574         .clear_legacy_intr      = qlcnic_82xx_clear_legacy_intr,
 575 };
 576
 577 struct qlcnic_nic_template qlcnic_vf_ops = {
 578         .config_bridged_mode    = qlcnicvf_config_bridged_mode,
 579         .config_led             = qlcnicvf_config_led,
 580         .start_firmware         = qlcnicvf_start_firmware
 581 };
 582
 583 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
 584         .read_crb                       = qlcnic_82xx_read_crb,
 585         .write_crb                      = qlcnic_82xx_write_crb,
 586         .read_reg                       = qlcnic_82xx_hw_read_wx_2M,
 587         .write_reg                      = qlcnic_82xx_hw_write_wx_2M,
 588         .get_mac_address                = qlcnic_82xx_get_mac_address,
 589         .setup_intr                     = qlcnic_82xx_setup_intr,
 590         .alloc_mbx_args                 = qlcnic_82xx_alloc_mbx_args,
 591         .mbx_cmd                        = qlcnic_82xx_issue_cmd,
 592         .get_func_no                    = qlcnic_82xx_get_func_no,
 593         .api_lock                       = qlcnic_82xx_api_lock,
 594         .api_unlock                     = qlcnic_82xx_api_unlock,
 595         .add_sysfs                      = qlcnic_82xx_add_sysfs,
 596         .remove_sysfs                   = qlcnic_82xx_remove_sysfs,
 597         .process_lb_rcv_ring_diag       = qlcnic_82xx_process_rcv_ring_diag,
 598         .create_rx_ctx                  = qlcnic_82xx_fw_cmd_create_rx_ctx,
 599         .create_tx_ctx                  = qlcnic_82xx_fw_cmd_create_tx_ctx,
 600         .del_rx_ctx                     = qlcnic_82xx_fw_cmd_del_rx_ctx,
 601         .del_tx_ctx                     = qlcnic_82xx_fw_cmd_del_tx_ctx,
 602         .setup_link_event               = qlcnic_82xx_linkevent_request,
 603         .get_nic_info                   = qlcnic_82xx_get_nic_info,
 604         .get_pci_info                   = qlcnic_82xx_get_pci_info,
 605         .set_nic_info                   = qlcnic_82xx_set_nic_info,
 606         .change_macvlan                 = qlcnic_82xx_sre_macaddr_change,
 607         .napi_enable                    = qlcnic_82xx_napi_enable,
 608         .napi_disable                   = qlcnic_82xx_napi_disable,
 609         .config_intr_coal               = qlcnic_82xx_config_intr_coalesce,
 610         .config_rss                     = qlcnic_82xx_config_rss,
 611         .config_hw_lro                  = qlcnic_82xx_config_hw_lro,
 612         .config_loopback                = qlcnic_82xx_set_lb_mode,
 613         .clear_loopback                 = qlcnic_82xx_clear_lb_mode,
 614         .config_promisc_mode            = qlcnic_82xx_nic_set_promisc,
 615         .change_l2_filter               = qlcnic_82xx_change_filter,
 616         .get_board_info                 = qlcnic_82xx_get_board_info,
 617         .set_mac_filter_count           = qlcnic_82xx_set_mac_filter_count,
 618         .free_mac_list                  = qlcnic_82xx_free_mac_list,
 619         .read_phys_port_id              = qlcnic_82xx_read_phys_port_id,
 620         .io_error_detected              = qlcnic_82xx_io_error_detected,
 621         .io_slot_reset                  = qlcnic_82xx_io_slot_reset,
 622         .io_resume                      = qlcnic_82xx_io_resume,
 623         .get_beacon_state               = qlcnic_82xx_get_beacon_state,
 624         .enable_sds_intr                = qlcnic_82xx_enable_sds_intr,
 625         .disable_sds_intr               = qlcnic_82xx_disable_sds_intr,
 626         .enable_tx_intr                 = qlcnic_82xx_enable_tx_intr,
 627         .disable_tx_intr                = qlcnic_82xx_disable_tx_intr,
 628         .get_saved_state                = qlcnic_82xx_get_saved_state,
 629         .set_saved_state                = qlcnic_82xx_set_saved_state,
 630         .cache_tmpl_hdr_values          = qlcnic_82xx_cache_tmpl_hdr_values,
 631         .get_cap_size                   = qlcnic_82xx_get_cap_size,
 632         .set_sys_info                   = qlcnic_82xx_set_sys_info,
 633         .store_cap_mask                 = qlcnic_82xx_store_cap_mask,
 634 };
 635
 636 static int qlcnic_check_multi_tx_capability(struct qlcnic_adapter *adapter)
 637 {
 638         struct qlcnic_hardware_context *ahw = adapter->ahw;
 639
 640         if (qlcnic_82xx_check(adapter) &&
 641             (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_MULTI_TX)) {
 642                 test_and_set_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
 643                 return 0;
 644         } else {
 645                 return 1;
 646         }
 647 }
 648
 649 static int qlcnic_max_rings(struct qlcnic_adapter *adapter, u8 ring_cnt,
 650                             int queue_type)
 651 {
 652         int num_rings, max_rings = QLCNIC_MAX_SDS_RINGS;
 653
 654         if (queue_type == QLCNIC_RX_QUEUE)
 655                 max_rings = adapter->max_sds_rings;
 656         else if (queue_type == QLCNIC_TX_QUEUE)
 657                 max_rings = adapter->max_tx_rings;
 658
 659         num_rings = rounddown_pow_of_two(min_t(int, num_online_cpus(),
 660                                               max_rings));
 661
 662         if (ring_cnt > num_rings)
 663                 return num_rings;
 664         else
 665                 return ring_cnt;
 666 }
 667
 668 void qlcnic_set_tx_ring_count(struct qlcnic_adapter *adapter, u8 tx_cnt)
 669 {
 670         /* 83xx adapter does not have max_tx_rings intialized in probe */
 671         if (adapter->max_tx_rings)
 672                 adapter->drv_tx_rings = qlcnic_max_rings(adapter, tx_cnt,
 673                                                          QLCNIC_TX_QUEUE);
 674         else
 675                 adapter->drv_tx_rings = tx_cnt;
 676 }
 677
 678 void qlcnic_set_sds_ring_count(struct qlcnic_adapter *adapter, u8 rx_cnt)
 679 {
 680         /* 83xx adapter does not have max_sds_rings intialized in probe */
 681         if (adapter->max_sds_rings)
 682                 adapter->drv_sds_rings = qlcnic_max_rings(adapter, rx_cnt,
 683                                                           QLCNIC_RX_QUEUE);
 684         else
 685                 adapter->drv_sds_rings = rx_cnt;
 686 }
 687
 688 int qlcnic_setup_tss_rss_intr(struct qlcnic_adapter *adapter)
 689 {
 690         struct pci_dev *pdev = adapter->pdev;
 691         int num_msix = 0, err = 0, vector;
 692
 693         adapter->flags &= ~QLCNIC_TSS_RSS;
 694
 695         if (adapter->drv_tss_rings > 0)
 696                 num_msix += adapter->drv_tss_rings;
 697         else
 698                 num_msix += adapter->drv_tx_rings;
 699
 700         if (adapter->drv_rss_rings > 0)
 701                 num_msix += adapter->drv_rss_rings;
 702         else
 703                 num_msix += adapter->drv_sds_rings;
 704
 705         if (qlcnic_83xx_check(adapter))
 706                 num_msix += 1;
 707
 708         if (!adapter->msix_entries) {
 709                 adapter->msix_entries = kcalloc(num_msix,
 710                                                 sizeof(struct msix_entry),
 711                                                 GFP_KERNEL);
 712                 if (!adapter->msix_entries)
 713                         return -ENOMEM;
 714         }
 715
 716         for (vector = 0; vector < num_msix; vector++)
 717                 adapter->msix_entries[vector].entry = vector;
 718
 719 restore:
 720         err = pci_enable_msix_exact(pdev, adapter->msix_entries, num_msix);
 721         if (err == -ENOSPC) {
 722                 if (!adapter->drv_tss_rings && !adapter->drv_rss_rings)
 723                         return err;
 724
 725                 netdev_info(adapter->netdev,
 726                             "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
 727                             num_msix, err);
 728
 729                 num_msix = adapter->drv_tx_rings + adapter->drv_sds_rings;
 730
 731                 /* Set rings to 0 so we can restore original TSS/RSS count */
 732                 adapter->drv_tss_rings = 0;
 733                 adapter->drv_rss_rings = 0;
 734
 735                 if (qlcnic_83xx_check(adapter))
 736                         num_msix += 1;
 737
 738                 netdev_info(adapter->netdev,
 739                             "Restoring %d Tx, %d SDS rings for total %d vectors.\n",
 740                             adapter->drv_tx_rings, adapter->drv_sds_rings,
 741                             num_msix);
 742
 743                 goto restore;
 744         } else if (err < 0) {
 745                 return err;
 746         }
 747
 748         adapter->ahw->num_msix = num_msix;
 749         if (adapter->drv_tss_rings > 0)
 750                 adapter->drv_tx_rings = adapter->drv_tss_rings;
 751
 752         if (adapter->drv_rss_rings > 0)
 753                 adapter->drv_sds_rings = adapter->drv_rss_rings;
 754
 755         return 0;
 756 }
 757
 758 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 759 {
 760         struct pci_dev *pdev = adapter->pdev;
 761         int err, vector;
 762
 763         if (!adapter->msix_entries) {
 764                 adapter->msix_entries = kcalloc(num_msix,
 765                                                 sizeof(struct msix_entry),
 766                                                 GFP_KERNEL);
 767                 if (!adapter->msix_entries)
 768                         return -ENOMEM;
 769         }
 770
 771         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 772
 773         if (adapter->ahw->msix_supported) {
 774 enable_msix:
 775                 for (vector = 0; vector < num_msix; vector++)
 776                         adapter->msix_entries[vector].entry = vector;
 777
 778                 err = pci_enable_msix_range(pdev,
 779                                             adapter->msix_entries, 1, num_msix);
 780
 781                 if (err == num_msix) {
 782                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 783                         adapter->ahw->num_msix = num_msix;
 784                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 785                         return 0;
 786                 } else if (err > 0) {
 787                         pci_disable_msix(pdev);
 788
 789                         dev_info(&pdev->dev,
 790                                  "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
 791                                  num_msix, err);
 792
 793                         if (qlcnic_82xx_check(adapter)) {
 794                                 num_msix = rounddown_pow_of_two(err);
 795                                 if (err < QLCNIC_82XX_MINIMUM_VECTOR)
 796                                         return -ENOSPC;
 797                         } else {
 798                                 num_msix = rounddown_pow_of_two(err - 1);
 799                                 num_msix += 1;
 800                                 if (err < QLCNIC_83XX_MINIMUM_VECTOR)
 801                                         return -ENOSPC;
 802                         }
 803
 804                         if (qlcnic_82xx_check(adapter) &&
 805                             !qlcnic_check_multi_tx(adapter)) {
 806                                 adapter->drv_sds_rings = num_msix;
 807                                 adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
 808                         } else {
 809                                 /* Distribute vectors equally */
 810                                 adapter->drv_tx_rings = num_msix / 2;
 811                                 adapter->drv_sds_rings = adapter->drv_tx_rings;
 812                         }
 813
 814                         if (num_msix) {
 815                                 dev_info(&pdev->dev,
 816                                          "Trying to allocate %d MSI-X interrupt vectors\n",
 817                                          num_msix);
 818                                 goto enable_msix;
 819                         }
 820                 } else {
 821                         dev_info(&pdev->dev,
 822                                  "Unable to allocate %d MSI-X vectors, err=%d\n",
 823                                  num_msix, err);
 824                         return err;
 825                 }
 826         }
 827
 828         return -EIO;
 829 }
 830
 831 static int qlcnic_82xx_calculate_msix_vector(struct qlcnic_adapter *adapter)
 832 {
 833         int num_msix;
 834
 835         num_msix = adapter->drv_sds_rings;
 836
 837         if (qlcnic_check_multi_tx(adapter))
 838                 num_msix += adapter->drv_tx_rings;
 839         else
 840                 num_msix += QLCNIC_SINGLE_RING;
 841
 842         return num_msix;
 843 }
 844
 845 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
 846 {
 847         int err = 0;
 848         u32 offset, mask_reg;
 849         const struct qlcnic_legacy_intr_set *legacy_intrp;
 850         struct qlcnic_hardware_context *ahw = adapter->ahw;
 851         struct pci_dev *pdev = adapter->pdev;
 852
 853         if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
 854                 adapter->flags |= QLCNIC_MSI_ENABLED;
 855                 offset = msi_tgt_status[adapter->ahw->pci_func];
 856                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
 857                                                             offset);
 858                 dev_info(&pdev->dev, "using msi interrupts\n");
 859                 adapter->msix_entries[0].vector = pdev->irq;
 860                 return err;
 861         }
 862
 863         if (qlcnic_use_msi || qlcnic_use_msi_x)
 864                 return -EOPNOTSUPP;
 865
 866         legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
 867         adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
 868         offset = legacy_intrp->tgt_status_reg;
 869         adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
 870         mask_reg = legacy_intrp->tgt_mask_reg;
 871         adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
 872         adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
 873         adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
 874         dev_info(&pdev->dev, "using legacy interrupts\n");
 875         adapter->msix_entries[0].vector = pdev->irq;
 876         return err;
 877 }
 878
 879 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter)
 880 {
 881         int num_msix, err = 0;
 882
 883         if (adapter->flags & QLCNIC_TSS_RSS) {
 884                 err = qlcnic_setup_tss_rss_intr(adapter);
 885                 if (err < 0)
 886                         return err;
 887                 num_msix = adapter->ahw->num_msix;
 888         } else {
 889                 num_msix = qlcnic_82xx_calculate_msix_vector(adapter);
 890
 891                 err = qlcnic_enable_msix(adapter, num_msix);
 892                 if (err == -ENOMEM)
 893                         return err;
 894
 895                 if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
 896                         qlcnic_disable_multi_tx(adapter);
 897                         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
 898
 899                         err = qlcnic_enable_msi_legacy(adapter);
 900                         if (err)
 901                                 return err;
 902                 }
 903         }
 904
 905         return 0;
 906 }
 907
 908 int qlcnic_82xx_mq_intrpt(struct qlcnic_adapter *adapter, int op_type)
 909 {
 910         struct qlcnic_hardware_context *ahw = adapter->ahw;
 911         int err, i;
 912
 913         if (qlcnic_check_multi_tx(adapter) &&
 914             !ahw->diag_test &&
 915             (adapter->flags & QLCNIC_MSIX_ENABLED)) {
 916                 ahw->intr_tbl = vzalloc(ahw->num_msix *
 917                                         sizeof(struct qlcnic_intrpt_config));
 918                 if (!ahw->intr_tbl)
 919                         return -ENOMEM;
 920
 921                 for (i = 0; i < ahw->num_msix; i++) {
 922                         ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
 923                         ahw->intr_tbl[i].id = i;
 924                         ahw->intr_tbl[i].src = 0;
 925                 }
 926
 927                 err = qlcnic_82xx_config_intrpt(adapter, 1);
 928                 if (err)
 929                         dev_err(&adapter->pdev->dev,
 930                                 "Failed to configure Interrupt for %d vector\n",
 931                                 ahw->num_msix);
 932                 return err;
 933         }
 934
 935         return 0;
 936 }
 937
 938 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 939 {
 940         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 941                 pci_disable_msix(adapter->pdev);
 942         if (adapter->flags & QLCNIC_MSI_ENABLED)
 943                 pci_disable_msi(adapter->pdev);
 944
 945         kfree(adapter->msix_entries);
 946         adapter->msix_entries = NULL;
 947
 948         if (adapter->ahw->intr_tbl) {
 949                 vfree(adapter->ahw->intr_tbl);
 950                 adapter->ahw->intr_tbl = NULL;
 951         }
 952 }
 953
 954 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
 955 {
 956         if (ahw->pci_base0 != NULL)
 957                 iounmap(ahw->pci_base0);
 958 }
 959
 960 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
 961 {
 962         struct qlcnic_hardware_context *ahw = adapter->ahw;
 963         struct qlcnic_pci_info *pci_info;
 964         int ret;
 965
 966         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 967                 switch (ahw->port_type) {
 968                 case QLCNIC_GBE:
 969                         ahw->total_nic_func = QLCNIC_NIU_MAX_GBE_PORTS;
 970                         break;
 971                 case QLCNIC_XGBE:
 972                         ahw->total_nic_func = QLCNIC_NIU_MAX_XG_PORTS;
 973                         break;
 974                 }
 975                 return 0;
 976         }
 977
 978         if (ahw->op_mode == QLCNIC_MGMT_FUNC)
 979                 return 0;
 980
 981         pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
 982         if (!pci_info)
 983                 return -ENOMEM;
 984
 985         ret = qlcnic_get_pci_info(adapter, pci_info);
 986         kfree(pci_info);
 987         return ret;
 988 }
 989
 990 static bool qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter *adapter)
 991 {
 992         bool ret = false;
 993
 994         if (qlcnic_84xx_check(adapter)) {
 995                 ret = true;
 996         } else if (qlcnic_83xx_check(adapter)) {
 997                 if (adapter->ahw->extra_capability[0] &
 998                     QLCNIC_FW_CAPABILITY_2_PER_PORT_ESWITCH_CFG)
 999                         ret = true;
1000                 else
1001                         ret = false;
1002         }
1003
1004         return ret;
1005 }
1006
1007 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
1008 {
1009         struct qlcnic_hardware_context *ahw = adapter->ahw;
1010         struct qlcnic_pci_info *pci_info;
1011         int i, id = 0, ret = 0, j = 0;
1012         u16 act_pci_func;
1013         u8 pfn;
1014
1015         pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
1016         if (!pci_info)
1017                 return -ENOMEM;
1018
1019         ret = qlcnic_get_pci_info(adapter, pci_info);
1020         if (ret)
1021                 goto err_pci_info;
1022
1023         act_pci_func = ahw->total_nic_func;
1024
1025         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
1026                                  act_pci_func, GFP_KERNEL);
1027         if (!adapter->npars) {
1028                 ret = -ENOMEM;
1029                 goto err_pci_info;
1030         }
1031
1032         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
1033                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
1034         if (!adapter->eswitch) {
1035                 ret = -ENOMEM;
1036                 goto err_npars;
1037         }
1038
1039         for (i = 0; i < ahw->max_vnic_func; i++) {
1040                 pfn = pci_info[i].id;
1041
1042                 if (pfn >= ahw->max_vnic_func) {
1043                         ret = -EINVAL;
1044                         dev_err(&adapter->pdev->dev, "%s: Invalid function 0x%x, max 0x%x\n",
1045                                 __func__, pfn, ahw->max_vnic_func);
1046                         goto err_eswitch;
1047                 }
1048
1049                 if (!pci_info[i].active ||
1050                     (pci_info[i].type != QLCNIC_TYPE_NIC))
1051                         continue;
1052
1053                 if (qlcnic_port_eswitch_cfg_capability(adapter)) {
1054                         if (!qlcnic_83xx_set_port_eswitch_status(adapter, pfn,
1055                                                                  &id))
1056                                 adapter->npars[j].eswitch_status = true;
1057                         else
1058                                 continue;
1059                 } else {
1060                         adapter->npars[j].eswitch_status = true;
1061                 }
1062
1063                 adapter->npars[j].pci_func = pfn;
1064                 adapter->npars[j].active = (u8)pci_info[i].active;
1065                 adapter->npars[j].type = (u8)pci_info[i].type;
1066                 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
1067                 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
1068                 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
1069
1070                 memcpy(&adapter->npars[j].mac, &pci_info[i].mac, ETH_ALEN);
1071                 j++;
1072         }
1073
1074         /* Update eSwitch status for adapters without per port eSwitch
1075          * configuration capability
1076          */
1077         if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
1078                 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
1079                         adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
1080         }
1081
1082         kfree(pci_info);
1083         return 0;
1084
1085 err_eswitch:
1086         kfree(adapter->eswitch);
1087         adapter->eswitch = NULL;
1088 err_npars:
1089         kfree(adapter->npars);
1090         adapter->npars = NULL;
1091 err_pci_info:
1092         kfree(pci_info);
1093
1094         return ret;
1095 }
1096
1097 static int
1098 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
1099 {
1100         u8 id;
1101         int ret;
1102         u32 data = QLCNIC_MGMT_FUNC;
1103         struct qlcnic_hardware_context *ahw = adapter->ahw;
1104
1105         ret = qlcnic_api_lock(adapter);
1106         if (ret)
1107                 goto err_lock;
1108
1109         id = ahw->pci_func;
1110         data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1111         data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
1112                QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
1113         QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
1114         qlcnic_api_unlock(adapter);
1115 err_lock:
1116         return ret;
1117 }
1118
1119 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
1120                             const struct pci_device_id *ent)
1121 {
1122         u32 op_mode, priv_level;
1123
1124         /* Determine FW API version */
1125         adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
1126                                                            QLCNIC_FW_API);
1127
1128         /* Find PCI function number */
1129         qlcnic_get_func_no(adapter);
1130
1131         /* Determine function privilege level */
1132         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1133         if (op_mode == QLC_DEV_DRV_DEFAULT)
1134                 priv_level = QLCNIC_MGMT_FUNC;
1135         else
1136                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1137
1138         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
1139                 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
1140                 dev_info(&adapter->pdev->dev,
1141                         "HAL Version: %d Non Privileged function\n",
1142                          adapter->ahw->fw_hal_version);
1143                 adapter->nic_ops = &qlcnic_vf_ops;
1144         } else
1145                 adapter->nic_ops = &qlcnic_ops;
1146 }
1147
1148 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
1149 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
1150 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
1151 {
1152         switch (dev_id) {
1153         case PCI_DEVICE_ID_QLOGIC_QLE824X:
1154                 *bar = QLCNIC_82XX_BAR0_LENGTH;
1155                 break;
1156         case PCI_DEVICE_ID_QLOGIC_QLE834X:
1157         case PCI_DEVICE_ID_QLOGIC_QLE8830:
1158         case PCI_DEVICE_ID_QLOGIC_QLE844X:
1159         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
1160         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
1161         case PCI_DEVICE_ID_QLOGIC_VF_QLE8C30:
1162                 *bar = QLCNIC_83XX_BAR0_LENGTH;
1163                 break;
1164         default:
1165                 *bar = 0;
1166         }
1167 }
1168
1169 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
1170                                 struct qlcnic_hardware_context *ahw)
1171 {
1172         u32 offset;
1173         void __iomem *mem_ptr0 = NULL;
1174         unsigned long mem_len, pci_len0 = 0, bar0_len;
1175
1176         /* remap phys address */
1177         mem_len = pci_resource_len(pdev, 0);
1178
1179         qlcnic_get_bar_length(pdev->device, &bar0_len);
1180         if (mem_len >= bar0_len) {
1181
1182                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
1183                 if (mem_ptr0 == NULL) {
1184                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
1185                         return -EIO;
1186                 }
1187                 pci_len0 = mem_len;
1188         } else {
1189                 return -EIO;
1190         }
1191
1192         dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
1193
1194         ahw->pci_base0 = mem_ptr0;
1195         ahw->pci_len0 = pci_len0;
1196         offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
1197         qlcnic_get_ioaddr(ahw, offset);
1198
1199         return 0;
1200 }
1201
1202 static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
1203                                          int index)
1204 {
1205         struct pci_dev *pdev = adapter->pdev;
1206         unsigned short subsystem_vendor;
1207         bool ret = true;
1208
1209         subsystem_vendor = pdev->subsystem_vendor;
1210
1211         if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
1212             pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1213                 if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
1214                     qlcnic_boards[index].sub_device == pdev->subsystem_device)
1215                         ret = true;
1216                 else
1217                         ret = false;
1218         }
1219
1220         return ret;
1221 }
1222
1223 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
1224 {
1225         struct pci_dev *pdev = adapter->pdev;
1226         int i, found = 0;
1227
1228         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1229                 if (qlcnic_boards[i].vendor == pdev->vendor &&
1230                     qlcnic_boards[i].device == pdev->device &&
1231                     qlcnic_validate_subsystem_id(adapter, i)) {
1232                         found = 1;
1233                         break;
1234                 }
1235         }
1236
1237         if (!found)
1238                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
1239         else
1240                 sprintf(name, "%pM: %s" , adapter->mac_addr,
1241                         qlcnic_boards[i].short_name);
1242 }
1243
1244 static void
1245 qlcnic_check_options(struct qlcnic_adapter *adapter)
1246 {
1247         int err;
1248         u32 fw_major, fw_minor, fw_build, prev_fw_version;
1249         struct pci_dev *pdev = adapter->pdev;
1250         struct qlcnic_hardware_context *ahw = adapter->ahw;
1251         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
1252
1253         prev_fw_version = adapter->fw_version;
1254
1255         fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
1256         fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
1257         fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
1258
1259         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
1260
1261         err = qlcnic_get_board_info(adapter);
1262         if (err) {
1263                 dev_err(&pdev->dev, "Error getting board config info.\n");
1264                 return;
1265         }
1266         if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
1267                 if (fw_dump->tmpl_hdr == NULL ||
1268                                 adapter->fw_version > prev_fw_version) {
1269                         vfree(fw_dump->tmpl_hdr);
1270                         if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1271                                 dev_info(&pdev->dev,
1272                                         "Supports FW dump capability\n");
1273                 }
1274         }
1275
1276         dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
1277                  QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
1278
1279         if (adapter->ahw->port_type == QLCNIC_XGBE) {
1280                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1281                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
1282                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
1283                 } else {
1284                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
1285                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
1286                 }
1287
1288                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1289                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1290
1291         } else if (adapter->ahw->port_type == QLCNIC_GBE) {
1292                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
1293                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1294                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1295                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
1296         }
1297
1298         adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
1299
1300         adapter->num_txd = MAX_CMD_DESCRIPTORS;
1301
1302         adapter->max_rds_rings = MAX_RDS_RINGS;
1303 }
1304
1305 static int
1306 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
1307 {
1308         struct qlcnic_info nic_info;
1309         int err = 0;
1310
1311         memset(&nic_info, 0, sizeof(struct qlcnic_info));
1312         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
1313         if (err)
1314                 return err;
1315
1316         adapter->ahw->physical_port = (u8)nic_info.phys_port;
1317         adapter->ahw->switch_mode = nic_info.switch_mode;
1318         adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
1319         adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
1320         adapter->ahw->capabilities = nic_info.capabilities;
1321
1322         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1323                 u32 temp;
1324                 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
1325                 if (err == -EIO)
1326                         return err;
1327                 adapter->ahw->extra_capability[0] = temp;
1328         } else {
1329                 adapter->ahw->extra_capability[0] = 0;
1330         }
1331
1332         adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1333         adapter->ahw->max_mtu = nic_info.max_mtu;
1334
1335         if (adapter->ahw->capabilities & BIT_6) {
1336                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1337                 adapter->ahw->nic_mode = QLCNIC_VNIC_MODE;
1338                 adapter->max_tx_rings = QLCNIC_MAX_HW_VNIC_TX_RINGS;
1339                 adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
1340
1341                 dev_info(&adapter->pdev->dev, "vNIC mode enabled.\n");
1342         } else {
1343                 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1344                 adapter->max_tx_rings = QLCNIC_MAX_HW_TX_RINGS;
1345                 adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
1346                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1347         }
1348
1349         return err;
1350 }
1351
1352 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1353                             struct qlcnic_esw_func_cfg *esw_cfg)
1354 {
1355         if (esw_cfg->discard_tagged)
1356                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1357         else
1358                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1359
1360         if (esw_cfg->vlan_id) {
1361                 adapter->rx_pvid = esw_cfg->vlan_id;
1362                 adapter->tx_pvid = esw_cfg->vlan_id;
1363         } else {
1364                 adapter->rx_pvid = 0;
1365                 adapter->tx_pvid = 0;
1366         }
1367 }
1368
1369 static int
1370 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1371 {
1372         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1373         int err;
1374
1375         if (qlcnic_sriov_vf_check(adapter)) {
1376                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1377                 if (err) {
1378                         netdev_err(netdev,
1379                                    "Cannot add VLAN filter for VLAN id %d, err=%d",
1380                                    vid, err);
1381                         return err;
1382                 }
1383         }
1384
1385         set_bit(vid, adapter->vlans);
1386         return 0;
1387 }
1388
1389 static int
1390 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1391 {
1392         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1393         int err;
1394
1395         if (qlcnic_sriov_vf_check(adapter)) {
1396                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1397                 if (err) {
1398                         netdev_err(netdev,
1399                                    "Cannot delete VLAN filter for VLAN id %d, err=%d",
1400                                    vid, err);
1401                         return err;
1402                 }
1403         }
1404
1405         qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1406         clear_bit(vid, adapter->vlans);
1407         return 0;
1408 }
1409
1410 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1411                                       struct qlcnic_esw_func_cfg *esw_cfg)
1412 {
1413         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1414                                 QLCNIC_PROMISC_DISABLED);
1415
1416         if (esw_cfg->mac_anti_spoof)
1417                 adapter->flags |= QLCNIC_MACSPOOF;
1418
1419         if (!esw_cfg->mac_override)
1420                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1421
1422         if (!esw_cfg->promisc_mode)
1423                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1424 }
1425
1426 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1427 {
1428         struct qlcnic_esw_func_cfg esw_cfg;
1429
1430         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1431                 return 0;
1432
1433         esw_cfg.pci_func = adapter->ahw->pci_func;
1434         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1435                         return -EIO;
1436         qlcnic_set_vlan_config(adapter, &esw_cfg);
1437         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1438         qlcnic_set_netdev_features(adapter, &esw_cfg);
1439
1440         return 0;
1441 }
1442
1443 void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1444                                 struct qlcnic_esw_func_cfg *esw_cfg)
1445 {
1446         struct net_device *netdev = adapter->netdev;
1447
1448         if (qlcnic_83xx_check(adapter))
1449                 return;
1450
1451         adapter->offload_flags = esw_cfg->offload_flags;
1452         adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1453         netdev_update_features(netdev);
1454         adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1455 }
1456
1457 static int
1458 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1459 {
1460         u32 op_mode, priv_level;
1461         int err = 0;
1462
1463         err = qlcnic_initialize_nic(adapter);
1464         if (err)
1465                 return err;
1466
1467         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1468                 return 0;
1469
1470         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1471         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1472
1473         if (op_mode == QLC_DEV_DRV_DEFAULT)
1474                 priv_level = QLCNIC_MGMT_FUNC;
1475         else
1476                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1477
1478         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1479                 if (priv_level == QLCNIC_MGMT_FUNC) {
1480                         adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1481                         err = qlcnic_init_pci_info(adapter);
1482                         if (err)
1483                                 return err;
1484                         /* Set privilege level for other functions */
1485                         qlcnic_set_function_modes(adapter);
1486                         dev_info(&adapter->pdev->dev,
1487                                 "HAL Version: %d, Management function\n",
1488                                  adapter->ahw->fw_hal_version);
1489                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1490                         adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1491                         dev_info(&adapter->pdev->dev,
1492                                 "HAL Version: %d, Privileged function\n",
1493                                  adapter->ahw->fw_hal_version);
1494                 }
1495         } else {
1496                 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1497         }
1498
1499         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1500
1501         return err;
1502 }
1503
1504 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1505 {
1506         struct qlcnic_esw_func_cfg esw_cfg;
1507         struct qlcnic_npar_info *npar;
1508         u8 i;
1509
1510         if (adapter->need_fw_reset)
1511                 return 0;
1512
1513         for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1514                 if (!adapter->npars[i].eswitch_status)
1515                         continue;
1516
1517                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1518                 esw_cfg.pci_func = adapter->npars[i].pci_func;
1519                 esw_cfg.mac_override = BIT_0;
1520                 esw_cfg.promisc_mode = BIT_0;
1521                 if (qlcnic_82xx_check(adapter)) {
1522                         esw_cfg.offload_flags = BIT_0;
1523                         if (QLCNIC_IS_TSO_CAPABLE(adapter))
1524                                 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1525                 }
1526                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1527                         return -EIO;
1528                 npar = &adapter->npars[i];
1529                 npar->pvid = esw_cfg.vlan_id;
1530                 npar->mac_override = esw_cfg.mac_override;
1531                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1532                 npar->discard_tagged = esw_cfg.discard_tagged;
1533                 npar->promisc_mode = esw_cfg.promisc_mode;
1534                 npar->offload_flags = esw_cfg.offload_flags;
1535         }
1536
1537         return 0;
1538 }
1539
1540
1541 static int
1542 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1543                         struct qlcnic_npar_info *npar, int pci_func)
1544 {
1545         struct qlcnic_esw_func_cfg esw_cfg;
1546         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1547         esw_cfg.pci_func = pci_func;
1548         esw_cfg.vlan_id = npar->pvid;
1549         esw_cfg.mac_override = npar->mac_override;
1550         esw_cfg.discard_tagged = npar->discard_tagged;
1551         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1552         esw_cfg.offload_flags = npar->offload_flags;
1553         esw_cfg.promisc_mode = npar->promisc_mode;
1554         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1555                 return -EIO;
1556
1557         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1558         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1559                 return -EIO;
1560
1561         return 0;
1562 }
1563
1564 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1565 {
1566         int i, err;
1567         struct qlcnic_npar_info *npar;
1568         struct qlcnic_info nic_info;
1569         u8 pci_func;
1570
1571         if (qlcnic_82xx_check(adapter))
1572                 if (!adapter->need_fw_reset)
1573                         return 0;
1574
1575         /* Set the NPAR config data after FW reset */
1576         for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1577                 npar = &adapter->npars[i];
1578                 pci_func = npar->pci_func;
1579                 if (!adapter->npars[i].eswitch_status)
1580                         continue;
1581
1582                 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1583                 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1584                 if (err)
1585                         return err;
1586                 nic_info.min_tx_bw = npar->min_bw;
1587                 nic_info.max_tx_bw = npar->max_bw;
1588                 err = qlcnic_set_nic_info(adapter, &nic_info);
1589                 if (err)
1590                         return err;
1591
1592                 if (npar->enable_pm) {
1593                         err = qlcnic_config_port_mirroring(adapter,
1594                                                            npar->dest_npar, 1,
1595                                                            pci_func);
1596                         if (err)
1597                                 return err;
1598                 }
1599                 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1600                 if (err)
1601                         return err;
1602         }
1603         return 0;
1604 }
1605
1606 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1607 {
1608         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1609         u32 npar_state;
1610
1611         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1612                 return 0;
1613
1614         npar_state = QLC_SHARED_REG_RD32(adapter,
1615                                          QLCNIC_CRB_DEV_NPAR_STATE);
1616         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1617                 msleep(1000);
1618                 npar_state = QLC_SHARED_REG_RD32(adapter,
1619                                                  QLCNIC_CRB_DEV_NPAR_STATE);
1620         }
1621         if (!npar_opt_timeo) {
1622                 dev_err(&adapter->pdev->dev,
1623                         "Waiting for NPAR state to operational timeout\n");
1624                 return -EIO;
1625         }
1626         return 0;
1627 }
1628
1629 static int
1630 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1631 {
1632         int err;
1633
1634         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1635             adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1636                 return 0;
1637
1638         err = qlcnic_set_default_offload_settings(adapter);
1639         if (err)
1640                 return err;
1641
1642         err = qlcnic_reset_npar_config(adapter);
1643         if (err)
1644                 return err;
1645
1646         qlcnic_dev_set_npar_ready(adapter);
1647
1648         return err;
1649 }
1650
1651 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1652 {
1653         int err;
1654
1655         err = qlcnic_can_start_firmware(adapter);
1656         if (err < 0)
1657                 return err;
1658         else if (!err)
1659                 goto check_fw_status;
1660
1661         if (qlcnic_load_fw_file)
1662                 qlcnic_request_firmware(adapter);
1663         else {
1664                 err = qlcnic_check_flash_fw_ver(adapter);
1665                 if (err)
1666                         goto err_out;
1667
1668                 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1669         }
1670
1671         err = qlcnic_need_fw_reset(adapter);
1672         if (err == 0)
1673                 goto check_fw_status;
1674
1675         err = qlcnic_pinit_from_rom(adapter);
1676         if (err)
1677                 goto err_out;
1678
1679         err = qlcnic_load_firmware(adapter);
1680         if (err)
1681                 goto err_out;
1682
1683         qlcnic_release_firmware(adapter);
1684         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1685
1686 check_fw_status:
1687         err = qlcnic_check_fw_status(adapter);
1688         if (err)
1689                 goto err_out;
1690
1691         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1692         qlcnic_idc_debug_info(adapter, 1);
1693         err = qlcnic_check_eswitch_mode(adapter);
1694         if (err) {
1695                 dev_err(&adapter->pdev->dev,
1696                         "Memory allocation failed for eswitch\n");
1697                 goto err_out;
1698         }
1699         err = qlcnic_set_mgmt_operations(adapter);
1700         if (err)
1701                 goto err_out;
1702
1703         qlcnic_check_options(adapter);
1704         adapter->need_fw_reset = 0;
1705
1706         qlcnic_release_firmware(adapter);
1707         return 0;
1708
1709 err_out:
1710         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1711         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1712
1713         qlcnic_release_firmware(adapter);
1714         return err;
1715 }
1716
1717 static int
1718 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1719 {
1720         irq_handler_t handler;
1721         struct qlcnic_host_sds_ring *sds_ring;
1722         struct qlcnic_host_tx_ring *tx_ring;
1723         int err, ring, num_sds_rings;
1724
1725         unsigned long flags = 0;
1726         struct net_device *netdev = adapter->netdev;
1727         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1728
1729         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1730                 if (qlcnic_82xx_check(adapter))
1731                         handler = qlcnic_tmp_intr;
1732                 else
1733                         handler = qlcnic_83xx_tmp_intr;
1734                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1735                         flags |= IRQF_SHARED;
1736
1737         } else {
1738                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1739                         handler = qlcnic_msix_intr;
1740                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1741                         handler = qlcnic_msi_intr;
1742                 else {
1743                         flags |= IRQF_SHARED;
1744                         if (qlcnic_82xx_check(adapter))
1745                                 handler = qlcnic_intr;
1746                         else
1747                                 handler = qlcnic_83xx_intr;
1748                 }
1749         }
1750         adapter->irq = netdev->irq;
1751
1752         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1753                 if (qlcnic_82xx_check(adapter) ||
1754                     (qlcnic_83xx_check(adapter) &&
1755                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1756                         num_sds_rings = adapter->drv_sds_rings;
1757                         for (ring = 0; ring < num_sds_rings; ring++) {
1758                                 sds_ring = &recv_ctx->sds_rings[ring];
1759                                 if (qlcnic_82xx_check(adapter) &&
1760                                     !qlcnic_check_multi_tx(adapter) &&
1761                                     (ring == (num_sds_rings - 1))) {
1762                                         if (!(adapter->flags &
1763                                               QLCNIC_MSIX_ENABLED))
1764                                                 snprintf(sds_ring->name,
1765                                                          sizeof(sds_ring->name),
1766                                                          "qlcnic");
1767                                         else
1768                                                 snprintf(sds_ring->name,
1769                                                          sizeof(sds_ring->name),
1770                                                          "%s-tx-0-rx-%d",
1771                                                          netdev->name, ring);
1772                                 } else {
1773                                         snprintf(sds_ring->name,
1774                                                  sizeof(sds_ring->name),
1775                                                  "%s-rx-%d",
1776                                                  netdev->name, ring);
1777                                 }
1778                                 err = request_irq(sds_ring->irq, handler, flags,
1779                                                   sds_ring->name, sds_ring);
1780                                 if (err)
1781                                         return err;
1782                         }
1783                 }
1784                 if ((qlcnic_82xx_check(adapter) &&
1785                      qlcnic_check_multi_tx(adapter)) ||
1786                     (qlcnic_83xx_check(adapter) &&
1787                      (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1788                      !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
1789                         handler = qlcnic_msix_tx_intr;
1790                         for (ring = 0; ring < adapter->drv_tx_rings;
1791                              ring++) {
1792                                 tx_ring = &adapter->tx_ring[ring];
1793                                 snprintf(tx_ring->name, sizeof(tx_ring->name),
1794                                          "%s-tx-%d", netdev->name, ring);
1795                                 err = request_irq(tx_ring->irq, handler, flags,
1796                                                   tx_ring->name, tx_ring);
1797                                 if (err)
1798                                         return err;
1799                         }
1800                 }
1801         }
1802         return 0;
1803 }
1804
1805 static void
1806 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1807 {
1808         int ring;
1809         struct qlcnic_host_sds_ring *sds_ring;
1810         struct qlcnic_host_tx_ring *tx_ring;
1811
1812         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1813
1814         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1815                 if (qlcnic_82xx_check(adapter) ||
1816                     (qlcnic_83xx_check(adapter) &&
1817                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1818                         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1819                                 sds_ring = &recv_ctx->sds_rings[ring];
1820                                 free_irq(sds_ring->irq, sds_ring);
1821                         }
1822                 }
1823                 if ((qlcnic_83xx_check(adapter) &&
1824                      !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
1825                     (qlcnic_82xx_check(adapter) &&
1826                      qlcnic_check_multi_tx(adapter))) {
1827                         for (ring = 0; ring < adapter->drv_tx_rings;
1828                              ring++) {
1829                                 tx_ring = &adapter->tx_ring[ring];
1830                                 if (tx_ring->irq)
1831                                         free_irq(tx_ring->irq, tx_ring);
1832                         }
1833                 }
1834         }
1835 }
1836
1837 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1838 {
1839         u32 capab = 0;
1840
1841         if (qlcnic_82xx_check(adapter)) {
1842                 if (adapter->ahw->extra_capability[0] &
1843                     QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1844                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1845         } else {
1846                 capab = adapter->ahw->capabilities;
1847                 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1848                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1849         }
1850 }
1851
1852 static int qlcnic_config_def_intr_coalesce(struct qlcnic_adapter *adapter)
1853 {
1854         struct qlcnic_hardware_context *ahw = adapter->ahw;
1855         int err;
1856
1857         /* Initialize interrupt coalesce parameters */
1858         ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1859
1860         if (qlcnic_83xx_check(adapter)) {
1861                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
1862                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1863                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1864                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1865                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1866
1867                 err = qlcnic_83xx_set_rx_tx_intr_coal(adapter);
1868         } else {
1869                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1870                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1871                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1872
1873                 err = qlcnic_82xx_set_rx_coalesce(adapter);
1874         }
1875
1876         return err;
1877 }
1878
1879 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1880 {
1881         int ring;
1882         struct qlcnic_host_rds_ring *rds_ring;
1883
1884         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1885                 return -EIO;
1886
1887         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1888                 return 0;
1889
1890         if (qlcnic_set_eswitch_port_config(adapter))
1891                 return -EIO;
1892
1893         qlcnic_get_lro_mss_capability(adapter);
1894
1895         if (qlcnic_fw_create_ctx(adapter))
1896                 return -EIO;
1897
1898         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1899                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1900                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1901         }
1902
1903         qlcnic_set_multi(netdev);
1904         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1905
1906         adapter->ahw->linkup = 0;
1907
1908         if (adapter->drv_sds_rings > 1)
1909                 qlcnic_config_rss(adapter, 1);
1910
1911         qlcnic_config_def_intr_coalesce(adapter);
1912
1913         if (netdev->features & NETIF_F_LRO)
1914                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1915
1916         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1917         qlcnic_napi_enable(adapter);
1918
1919         qlcnic_linkevent_request(adapter, 1);
1920
1921         adapter->ahw->reset_context = 0;
1922         netif_tx_start_all_queues(netdev);
1923         return 0;
1924 }
1925
1926 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1927 {
1928         int err = 0;
1929
1930         rtnl_lock();
1931         if (netif_running(netdev))
1932                 err = __qlcnic_up(adapter, netdev);
1933         rtnl_unlock();
1934
1935         return err;
1936 }
1937
1938 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1939 {
1940         int ring;
1941
1942         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1943                 return;
1944
1945         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1946                 return;
1947
1948         smp_mb();
1949         netif_carrier_off(netdev);
1950         adapter->ahw->linkup = 0;
1951         netif_tx_disable(netdev);
1952
1953         qlcnic_free_mac_list(adapter);
1954
1955         if (adapter->fhash.fnum)
1956                 qlcnic_delete_lb_filters(adapter);
1957
1958         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1959         if (qlcnic_sriov_vf_check(adapter))
1960                 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1961
1962         qlcnic_napi_disable(adapter);
1963
1964         qlcnic_fw_destroy_ctx(adapter);
1965         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1966
1967         qlcnic_reset_rx_buffers_list(adapter);
1968
1969         for (ring = 0; ring < adapter->drv_tx_rings; ring++)
1970                 qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
1971 }
1972
1973 /* Usage: During suspend and firmware recovery module */
1974
1975 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1976 {
1977         rtnl_lock();
1978         if (netif_running(netdev))
1979                 __qlcnic_down(adapter, netdev);
1980         rtnl_unlock();
1981
1982 }
1983
1984 int
1985 qlcnic_attach(struct qlcnic_adapter *adapter)
1986 {
1987         struct net_device *netdev = adapter->netdev;
1988         struct pci_dev *pdev = adapter->pdev;
1989         int err;
1990
1991         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1992                 return 0;
1993
1994         err = qlcnic_napi_add(adapter, netdev);
1995         if (err)
1996                 return err;
1997
1998         err = qlcnic_alloc_sw_resources(adapter);
1999         if (err) {
2000                 dev_err(&pdev->dev, "Error in setting sw resources\n");
2001                 goto err_out_napi_del;
2002         }
2003
2004         err = qlcnic_alloc_hw_resources(adapter);
2005         if (err) {
2006                 dev_err(&pdev->dev, "Error in setting hw resources\n");
2007                 goto err_out_free_sw;
2008         }
2009
2010         err = qlcnic_request_irq(adapter);
2011         if (err) {
2012                 dev_err(&pdev->dev, "failed to setup interrupt\n");
2013                 goto err_out_free_hw;
2014         }
2015
2016         qlcnic_create_sysfs_entries(adapter);
2017
2018         if (qlcnic_encap_rx_offload(adapter))
2019                 udp_tunnel_get_rx_info(netdev);
2020
2021         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
2022         return 0;
2023
2024 err_out_free_hw:
2025         qlcnic_free_hw_resources(adapter);
2026 err_out_free_sw:
2027         qlcnic_free_sw_resources(adapter);
2028 err_out_napi_del:
2029         qlcnic_napi_del(adapter);
2030         return err;
2031 }
2032
2033 void qlcnic_detach(struct qlcnic_adapter *adapter)
2034 {
2035         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2036                 return;
2037
2038         qlcnic_remove_sysfs_entries(adapter);
2039
2040         qlcnic_free_hw_resources(adapter);
2041         qlcnic_release_rx_buffers(adapter);
2042         qlcnic_free_irq(adapter);
2043         qlcnic_napi_del(adapter);
2044         qlcnic_free_sw_resources(adapter);
2045
2046         adapter->is_up = 0;
2047 }
2048
2049 void qlcnic_diag_free_res(struct net_device *netdev, int drv_sds_rings)
2050 {
2051         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2052         struct qlcnic_host_sds_ring *sds_ring;
2053         int drv_tx_rings = adapter->drv_tx_rings;
2054         int ring;
2055
2056         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
2057         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2058                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2059                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
2060                         qlcnic_disable_sds_intr(adapter, sds_ring);
2061                 }
2062         }
2063
2064         qlcnic_fw_destroy_ctx(adapter);
2065
2066         qlcnic_detach(adapter);
2067
2068         adapter->ahw->diag_test = 0;
2069         adapter->drv_sds_rings = drv_sds_rings;
2070         adapter->drv_tx_rings = drv_tx_rings;
2071
2072         if (qlcnic_attach(adapter))
2073                 goto out;
2074
2075         if (netif_running(netdev))
2076                 __qlcnic_up(adapter, netdev);
2077 out:
2078         netif_device_attach(netdev);
2079 }
2080
2081 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
2082 {
2083         struct qlcnic_hardware_context *ahw = adapter->ahw;
2084         int err = 0;
2085
2086         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
2087                                 GFP_KERNEL);
2088         if (!adapter->recv_ctx) {
2089                 err = -ENOMEM;
2090                 goto err_out;
2091         }
2092
2093         if (qlcnic_83xx_check(adapter)) {
2094                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
2095                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
2096                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
2097                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2098                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2099         } else {
2100                 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
2101                 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2102                 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2103         }
2104
2105         /* clear stats */
2106         memset(&adapter->stats, 0, sizeof(adapter->stats));
2107 err_out:
2108         return err;
2109 }
2110
2111 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
2112 {
2113         struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
2114
2115         kfree(adapter->recv_ctx);
2116         adapter->recv_ctx = NULL;
2117
2118         if (fw_dump->tmpl_hdr) {
2119                 vfree(fw_dump->tmpl_hdr);
2120                 fw_dump->tmpl_hdr = NULL;
2121         }
2122
2123         if (fw_dump->dma_buffer) {
2124                 dma_free_coherent(&adapter->pdev->dev, QLC_PEX_DMA_READ_SIZE,
2125                                   fw_dump->dma_buffer, fw_dump->phys_addr);
2126                 fw_dump->dma_buffer = NULL;
2127         }
2128
2129         kfree(adapter->ahw->reset.buff);
2130         adapter->ahw->fw_dump.tmpl_hdr = NULL;
2131 }
2132
2133 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
2134 {
2135         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2136         struct qlcnic_host_sds_ring *sds_ring;
2137         struct qlcnic_host_rds_ring *rds_ring;
2138         int ring;
2139         int ret;
2140
2141         netif_device_detach(netdev);
2142
2143         if (netif_running(netdev))
2144                 __qlcnic_down(adapter, netdev);
2145
2146         qlcnic_detach(adapter);
2147
2148         adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
2149         adapter->ahw->diag_test = test;
2150         adapter->ahw->linkup = 0;
2151
2152         ret = qlcnic_attach(adapter);
2153         if (ret) {
2154                 netif_device_attach(netdev);
2155                 return ret;
2156         }
2157
2158         ret = qlcnic_fw_create_ctx(adapter);
2159         if (ret) {
2160                 qlcnic_detach(adapter);
2161                 netif_device_attach(netdev);
2162                 return ret;
2163         }
2164
2165         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
2166                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
2167                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
2168         }
2169
2170         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2171                 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2172                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
2173                         qlcnic_enable_sds_intr(adapter, sds_ring);
2174                 }
2175         }
2176
2177         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
2178                 adapter->ahw->loopback_state = 0;
2179                 qlcnic_linkevent_request(adapter, 1);
2180         }
2181
2182         set_bit(__QLCNIC_DEV_UP, &adapter->state);
2183
2184         return 0;
2185 }
2186
2187 /* Reset context in hardware only */
2188 static int
2189 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
2190 {
2191         struct net_device *netdev = adapter->netdev;
2192
2193         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2194                 return -EBUSY;
2195
2196         netif_device_detach(netdev);
2197
2198         qlcnic_down(adapter, netdev);
2199
2200         qlcnic_up(adapter, netdev);
2201
2202         netif_device_attach(netdev);
2203
2204         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2205         netdev_info(adapter->netdev, "%s: soft reset complete\n", __func__);
2206         return 0;
2207 }
2208
2209 int
2210 qlcnic_reset_context(struct qlcnic_adapter *adapter)
2211 {
2212         int err = 0;
2213         struct net_device *netdev = adapter->netdev;
2214
2215         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2216                 return -EBUSY;
2217
2218         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
2219
2220                 netif_device_detach(netdev);
2221
2222                 if (netif_running(netdev))
2223                         __qlcnic_down(adapter, netdev);
2224
2225                 qlcnic_detach(adapter);
2226
2227                 if (netif_running(netdev)) {
2228                         err = qlcnic_attach(adapter);
2229                         if (!err) {
2230                                 __qlcnic_up(adapter, netdev);
2231                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2232                         }
2233                 }
2234
2235                 netif_device_attach(netdev);
2236         }
2237
2238         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2239         return err;
2240 }
2241
2242 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
2243 {
2244         struct qlcnic_hardware_context *ahw = adapter->ahw;
2245         u16 act_pci_fn = ahw->total_nic_func;
2246         u16 count;
2247
2248         ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
2249         if (act_pci_fn <= 2)
2250                 count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
2251                          act_pci_fn;
2252         else
2253                 count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
2254                          act_pci_fn;
2255         ahw->max_uc_count = count;
2256 }
2257
2258 static int qlcnic_set_real_num_queues(struct qlcnic_adapter *adapter,
2259                                       u8 tx_queues, u8 rx_queues)
2260 {
2261         struct net_device *netdev = adapter->netdev;
2262         int err = 0;
2263
2264         if (tx_queues) {
2265                 err = netif_set_real_num_tx_queues(netdev, tx_queues);
2266                 if (err) {
2267                         netdev_err(netdev, "failed to set %d Tx queues\n",
2268                                    tx_queues);
2269                         return err;
2270                 }
2271         }
2272
2273         if (rx_queues) {
2274                 err = netif_set_real_num_rx_queues(netdev, rx_queues);
2275                 if (err)
2276                         netdev_err(netdev, "failed to set %d Rx queues\n",
2277                                    rx_queues);
2278         }
2279
2280         return err;
2281 }
2282
2283 int
2284 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
2285                     int pci_using_dac)
2286 {
2287         int err;
2288         struct pci_dev *pdev = adapter->pdev;
2289
2290         adapter->rx_csum = 1;
2291         adapter->ahw->mc_enabled = 0;
2292         qlcnic_set_mac_filter_count(adapter);
2293
2294         netdev->netdev_ops         = &qlcnic_netdev_ops;
2295         netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
2296
2297         qlcnic_change_mtu(netdev, netdev->mtu);
2298
2299         netdev->ethtool_ops = (qlcnic_sriov_vf_check(adapter)) ?
2300                 &qlcnic_sriov_vf_ethtool_ops : &qlcnic_ethtool_ops;
2301
2302         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2303                              NETIF_F_IPV6_CSUM | NETIF_F_GRO |
2304                              NETIF_F_HW_VLAN_CTAG_RX);
2305         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
2306                                   NETIF_F_IPV6_CSUM);
2307
2308         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
2309                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
2310                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
2311         }
2312
2313         if (pci_using_dac) {
2314                 netdev->features |= NETIF_F_HIGHDMA;
2315                 netdev->vlan_features |= NETIF_F_HIGHDMA;
2316         }
2317
2318         if (qlcnic_vlan_tx_check(adapter))
2319                 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
2320
2321         if (qlcnic_sriov_vf_check(adapter))
2322                 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2323
2324         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
2325                 netdev->features |= NETIF_F_LRO;
2326
2327         if (qlcnic_encap_tx_offload(adapter)) {
2328                 netdev->features |= NETIF_F_GSO_UDP_TUNNEL;
2329
2330                 /* encapsulation Tx offload supported by Adapter */
2331                 netdev->hw_enc_features = NETIF_F_IP_CSUM        |
2332                                           NETIF_F_GSO_UDP_TUNNEL |
2333                                           NETIF_F_TSO            |
2334                                           NETIF_F_TSO6;
2335         }
2336
2337         if (qlcnic_encap_rx_offload(adapter))
2338                 netdev->hw_enc_features |= NETIF_F_RXCSUM;
2339
2340         netdev->hw_features = netdev->features;
2341         netdev->priv_flags |= IFF_UNICAST_FLT;
2342         netdev->irq = adapter->msix_entries[0].vector;
2343
2344         err = qlcnic_set_real_num_queues(adapter, adapter->drv_tx_rings,
2345                                          adapter->drv_sds_rings);
2346         if (err)
2347                 return err;
2348
2349         qlcnic_dcb_init_dcbnl_ops(adapter->dcb);
2350
2351         err = register_netdev(netdev);
2352         if (err) {
2353                 dev_err(&pdev->dev, "failed to register net device\n");
2354                 return err;
2355         }
2356
2357         return 0;
2358 }
2359
2360 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
2361 {
2362         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
2363                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
2364                 *pci_using_dac = 1;
2365         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
2366                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
2367                 *pci_using_dac = 0;
2368         else {
2369                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
2370                 return -EIO;
2371         }
2372
2373         return 0;
2374 }
2375
2376 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
2377 {
2378         int ring;
2379         struct qlcnic_host_tx_ring *tx_ring;
2380
2381         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2382                 tx_ring = &adapter->tx_ring[ring];
2383                 if (tx_ring) {
2384                         vfree(tx_ring->cmd_buf_arr);
2385                         tx_ring->cmd_buf_arr = NULL;
2386                 }
2387         }
2388         kfree(adapter->tx_ring);
2389 }
2390
2391 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
2392                           struct net_device *netdev)
2393 {
2394         int ring, vector, index;
2395         struct qlcnic_host_tx_ring *tx_ring;
2396         struct qlcnic_cmd_buffer *cmd_buf_arr;
2397
2398         tx_ring = kcalloc(adapter->drv_tx_rings,
2399                           sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
2400         if (tx_ring == NULL)
2401                 return -ENOMEM;
2402
2403         adapter->tx_ring = tx_ring;
2404
2405         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2406                 tx_ring = &adapter->tx_ring[ring];
2407                 tx_ring->num_desc = adapter->num_txd;
2408                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
2409                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
2410                 if (cmd_buf_arr == NULL) {
2411                         qlcnic_free_tx_rings(adapter);
2412                         return -ENOMEM;
2413                 }
2414                 tx_ring->cmd_buf_arr = cmd_buf_arr;
2415                 spin_lock_init(&tx_ring->tx_clean_lock);
2416         }
2417
2418         if (qlcnic_83xx_check(adapter) ||
2419             (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
2420                 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2421                         tx_ring = &adapter->tx_ring[ring];
2422                         tx_ring->adapter = adapter;
2423                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
2424                                 index = adapter->drv_sds_rings + ring;
2425                                 vector = adapter->msix_entries[index].vector;
2426                                 tx_ring->irq = vector;
2427                         }
2428                 }
2429         }
2430
2431         return 0;
2432 }
2433
2434 void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
2435 {
2436         struct qlcnic_hardware_context *ahw = adapter->ahw;
2437         u32 fw_cmd = 0;
2438
2439         if (qlcnic_82xx_check(adapter))
2440                 fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
2441         else if (qlcnic_83xx_check(adapter))
2442                 fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
2443
2444         if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER)
2445                 qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
2446 }
2447
2448 /* Reset firmware API lock */
2449 static void qlcnic_reset_api_lock(struct qlcnic_adapter *adapter)
2450 {
2451         qlcnic_api_lock(adapter);
2452         qlcnic_api_unlock(adapter);
2453 }
2454
2455
2456 static int
2457 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2458 {
2459         struct net_device *netdev = NULL;
2460         struct qlcnic_adapter *adapter = NULL;
2461         struct qlcnic_hardware_context *ahw;
2462         int err, pci_using_dac = -1;
2463         char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
2464
2465         err = pci_enable_device(pdev);
2466         if (err)
2467                 return err;
2468
2469         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2470                 err = -ENODEV;
2471                 goto err_out_disable_pdev;
2472         }
2473
2474         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
2475         if (err)
2476                 goto err_out_disable_pdev;
2477
2478         err = pci_request_regions(pdev, qlcnic_driver_name);
2479         if (err)
2480                 goto err_out_disable_pdev;
2481
2482         pci_set_master(pdev);
2483         pci_enable_pcie_error_reporting(pdev);
2484
2485         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2486         if (!ahw) {
2487                 err = -ENOMEM;
2488                 goto err_out_free_res;
2489         }
2490
2491         switch (ent->device) {
2492         case PCI_DEVICE_ID_QLOGIC_QLE824X:
2493                 ahw->hw_ops = &qlcnic_hw_ops;
2494                 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2495                 break;
2496         case PCI_DEVICE_ID_QLOGIC_QLE834X:
2497         case PCI_DEVICE_ID_QLOGIC_QLE8830:
2498         case PCI_DEVICE_ID_QLOGIC_QLE844X:
2499                 qlcnic_83xx_register_map(ahw);
2500                 break;
2501         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2502         case PCI_DEVICE_ID_QLOGIC_VF_QLE8C30:
2503         case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2504                 qlcnic_sriov_vf_register_map(ahw);
2505                 break;
2506         default:
2507                 goto err_out_free_hw_res;
2508         }
2509
2510         err = qlcnic_setup_pci_map(pdev, ahw);
2511         if (err)
2512                 goto err_out_free_hw_res;
2513
2514         netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
2515                                    QLCNIC_MAX_TX_RINGS);
2516         if (!netdev) {
2517                 err = -ENOMEM;
2518                 goto err_out_iounmap;
2519         }
2520
2521         SET_NETDEV_DEV(netdev, &pdev->dev);
2522
2523         adapter = netdev_priv(netdev);
2524         adapter->netdev  = netdev;
2525         adapter->pdev    = pdev;
2526         adapter->ahw = ahw;
2527
2528         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2529         if (adapter->qlcnic_wq == NULL) {
2530                 err = -ENOMEM;
2531                 dev_err(&pdev->dev, "Failed to create workqueue\n");
2532                 goto err_out_free_netdev;
2533         }
2534
2535         err = qlcnic_alloc_adapter_resources(adapter);
2536         if (err)
2537                 goto err_out_free_wq;
2538
2539         adapter->dev_rst_time = jiffies;
2540         ahw->revision_id = pdev->revision;
2541         ahw->max_vnic_func = qlcnic_get_vnic_func_count(adapter);
2542         if (qlcnic_mac_learn == FDB_MAC_LEARN)
2543                 adapter->fdb_mac_learn = true;
2544         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2545                 adapter->drv_mac_learn = true;
2546
2547         rwlock_init(&adapter->ahw->crb_lock);
2548         mutex_init(&adapter->ahw->mem_lock);
2549
2550         INIT_LIST_HEAD(&adapter->mac_list);
2551
2552         qlcnic_register_dcb(adapter);
2553
2554         if (qlcnic_82xx_check(adapter)) {
2555                 qlcnic_check_vf(adapter, ent);
2556                 adapter->portnum = adapter->ahw->pci_func;
2557                 qlcnic_reset_api_lock(adapter);
2558                 err = qlcnic_start_firmware(adapter);
2559                 if (err) {
2560                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
2561                                 "\t\tIf reboot doesn't help, try flashing the card\n");
2562                         goto err_out_maintenance_mode;
2563                 }
2564
2565                 /* compute and set default and max tx/sds rings */
2566                 if (adapter->ahw->msix_supported) {
2567                         if (qlcnic_check_multi_tx_capability(adapter) == 1)
2568                                 qlcnic_set_tx_ring_count(adapter,
2569                                                          QLCNIC_SINGLE_RING);
2570                         else
2571                                 qlcnic_set_tx_ring_count(adapter,
2572                                                          QLCNIC_DEF_TX_RINGS);
2573                         qlcnic_set_sds_ring_count(adapter,
2574                                                   QLCNIC_DEF_SDS_RINGS);
2575                 } else {
2576                         qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
2577                         qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
2578                 }
2579
2580                 err = qlcnic_setup_idc_param(adapter);
2581                 if (err)
2582                         goto err_out_free_hw;
2583
2584                 adapter->flags |= QLCNIC_NEED_FLR;
2585
2586         } else if (qlcnic_83xx_check(adapter)) {
2587                 qlcnic_83xx_check_vf(adapter, ent);
2588                 adapter->portnum = adapter->ahw->pci_func;
2589                 err = qlcnic_83xx_init(adapter, pci_using_dac);
2590                 if (err) {
2591                         switch (err) {
2592                         case -ENOTRECOVERABLE:
2593                                 dev_err(&pdev->dev, "Adapter initialization failed due to a faulty hardware\n");
2594                                 dev_err(&pdev->dev, "Please replace the adapter with new one and return the faulty adapter for repair\n");
2595                                 goto err_out_free_hw;
2596                         case -ENOMEM:
2597                                 dev_err(&pdev->dev, "Adapter initialization failed. Please reboot\n");
2598                                 goto err_out_free_hw;
2599                         case -EOPNOTSUPP:
2600                                 dev_err(&pdev->dev, "Adapter initialization failed\n");
2601                                 goto err_out_free_hw;
2602                         default:
2603                                 dev_err(&pdev->dev, "Adapter initialization failed. Driver will load in maintenance mode to recover the adapter using the application\n");
2604                                 goto err_out_maintenance_mode;
2605                         }
2606                 }
2607
2608                 if (qlcnic_sriov_vf_check(adapter))
2609                         return 0;
2610         } else {
2611                 dev_err(&pdev->dev,
2612                         "%s: failed. Please Reboot\n", __func__);
2613                 err = -ENODEV;
2614                 goto err_out_free_hw;
2615         }
2616
2617         if (qlcnic_read_mac_addr(adapter))
2618                 dev_warn(&pdev->dev, "failed to read mac addr\n");
2619
2620         qlcnic_read_phys_port_id(adapter);
2621
2622         if (adapter->portnum == 0) {
2623                 qlcnic_get_board_name(adapter, board_name);
2624
2625                 pr_info("%s: %s Board Chip rev 0x%x\n",
2626                         module_name(THIS_MODULE),
2627                         board_name, adapter->ahw->revision_id);
2628         }
2629
2630         if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2631             !!qlcnic_use_msi)
2632                 dev_warn(&pdev->dev,
2633                          "Device does not support MSI interrupts\n");
2634
2635         if (qlcnic_82xx_check(adapter)) {
2636                 qlcnic_dcb_enable(adapter->dcb);
2637                 qlcnic_dcb_get_info(adapter->dcb);
2638                 err = qlcnic_setup_intr(adapter);
2639
2640                 if (err) {
2641                         dev_err(&pdev->dev, "Failed to setup interrupt\n");
2642                         goto err_out_disable_msi;
2643                 }
2644         }
2645
2646         err = qlcnic_get_act_pci_func(adapter);
2647         if (err)
2648                 goto err_out_disable_mbx_intr;
2649
2650         if (adapter->portnum == 0)
2651                 qlcnic_set_drv_version(adapter);
2652
2653         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2654         if (err)
2655                 goto err_out_disable_mbx_intr;
2656
2657         pci_set_drvdata(pdev, adapter);
2658
2659         if (qlcnic_82xx_check(adapter))
2660                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2661                                      FW_POLL_DELAY);
2662
2663         switch (adapter->ahw->port_type) {
2664         case QLCNIC_GBE:
2665                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2666                                 adapter->netdev->name);
2667                 break;
2668         case QLCNIC_XGBE:
2669                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2670                                 adapter->netdev->name);
2671                 break;
2672         }
2673
2674         if (adapter->drv_mac_learn)
2675                 qlcnic_alloc_lb_filters_mem(adapter);
2676
2677         qlcnic_add_sysfs(adapter);
2678         qlcnic_register_hwmon_dev(adapter);
2679         return 0;
2680
2681 err_out_disable_mbx_intr:
2682         if (qlcnic_83xx_check(adapter))
2683                 qlcnic_83xx_free_mbx_intr(adapter);
2684
2685 err_out_disable_msi:
2686         qlcnic_teardown_intr(adapter);
2687         qlcnic_cancel_idc_work(adapter);
2688         qlcnic_clr_all_drv_state(adapter, 0);
2689
2690 err_out_free_hw:
2691         qlcnic_free_adapter_resources(adapter);
2692
2693 err_out_free_wq:
2694         destroy_workqueue(adapter->qlcnic_wq);
2695
2696 err_out_free_netdev:
2697         free_netdev(netdev);
2698
2699 err_out_iounmap:
2700         qlcnic_cleanup_pci_map(ahw);
2701
2702 err_out_free_hw_res:
2703         kfree(ahw);
2704
2705 err_out_free_res:
2706         pci_release_regions(pdev);
2707
2708 err_out_disable_pdev:
2709         pci_disable_device(pdev);
2710         return err;
2711
2712 err_out_maintenance_mode:
2713         set_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state);
2714         netdev->netdev_ops = &qlcnic_netdev_failed_ops;
2715         netdev->ethtool_ops = &qlcnic_ethtool_failed_ops;
2716         ahw->port_type = QLCNIC_XGBE;
2717
2718         if (qlcnic_83xx_check(adapter))
2719                 adapter->tgt_status_reg = NULL;
2720         else
2721                 ahw->board_type = QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS;
2722
2723         err = register_netdev(netdev);
2724
2725         if (err) {
2726                 dev_err(&pdev->dev, "Failed to register net device\n");
2727                 qlcnic_clr_all_drv_state(adapter, 0);
2728                 goto err_out_free_hw;
2729         }
2730
2731         pci_set_drvdata(pdev, adapter);
2732         qlcnic_add_sysfs(adapter);
2733
2734         return 0;
2735 }
2736
2737 static void qlcnic_remove(struct pci_dev *pdev)
2738 {
2739         struct qlcnic_adapter *adapter;
2740         struct net_device *netdev;
2741         struct qlcnic_hardware_context *ahw;
2742
2743         adapter = pci_get_drvdata(pdev);
2744         if (adapter == NULL)
2745                 return;
2746
2747         netdev = adapter->netdev;
2748
2749         qlcnic_cancel_idc_work(adapter);
2750         qlcnic_sriov_pf_disable(adapter);
2751         ahw = adapter->ahw;
2752
2753         unregister_netdev(netdev);
2754         qlcnic_sriov_cleanup(adapter);
2755
2756         if (qlcnic_83xx_check(adapter)) {
2757                 qlcnic_83xx_initialize_nic(adapter, 0);
2758                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2759                 qlcnic_83xx_free_mbx_intr(adapter);
2760                 qlcnic_83xx_detach_mailbox_work(adapter);
2761                 qlcnic_83xx_free_mailbox(ahw->mailbox);
2762                 kfree(ahw->fw_info);
2763         }
2764
2765         qlcnic_dcb_free(adapter->dcb);
2766         qlcnic_detach(adapter);
2767         kfree(adapter->npars);
2768         kfree(adapter->eswitch);
2769
2770         if (qlcnic_82xx_check(adapter))
2771                 qlcnic_clr_all_drv_state(adapter, 0);
2772
2773         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2774
2775         qlcnic_free_lb_filters_mem(adapter);
2776
2777         qlcnic_teardown_intr(adapter);
2778
2779         qlcnic_remove_sysfs(adapter);
2780
2781         qlcnic_unregister_hwmon_dev(adapter);
2782
2783         qlcnic_cleanup_pci_map(adapter->ahw);
2784
2785         qlcnic_release_firmware(adapter);
2786
2787         pci_disable_pcie_error_reporting(pdev);
2788         pci_release_regions(pdev);
2789         pci_disable_device(pdev);
2790
2791         if (adapter->qlcnic_wq) {
2792                 destroy_workqueue(adapter->qlcnic_wq);
2793                 adapter->qlcnic_wq = NULL;
2794         }
2795
2796         qlcnic_free_adapter_resources(adapter);
2797         kfree(ahw);
2798         free_netdev(netdev);
2799 }
2800
2801 static void qlcnic_shutdown(struct pci_dev *pdev)
2802 {
2803         if (__qlcnic_shutdown(pdev))
2804                 return;
2805
2806         pci_disable_device(pdev);
2807 }
2808
2809 #ifdef CONFIG_PM
2810 static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2811 {
2812         int retval;
2813
2814         retval = __qlcnic_shutdown(pdev);
2815         if (retval)
2816                 return retval;
2817
2818         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2819         return 0;
2820 }
2821
2822 static int qlcnic_resume(struct pci_dev *pdev)
2823 {
2824         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2825         int err;
2826
2827         err = pci_enable_device(pdev);
2828         if (err)
2829                 return err;
2830
2831         pci_set_power_state(pdev, PCI_D0);
2832         pci_set_master(pdev);
2833         pci_restore_state(pdev);
2834
2835         return  __qlcnic_resume(adapter);
2836 }
2837 #endif
2838
2839 static int qlcnic_open(struct net_device *netdev)
2840 {
2841         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2842         int err;
2843
2844         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
2845                 netdev_err(netdev, "%s: Device is in non-operational state\n",
2846                            __func__);
2847
2848                 return -EIO;
2849         }
2850
2851         netif_carrier_off(netdev);
2852
2853         err = qlcnic_attach(adapter);
2854         if (err)
2855                 return err;
2856
2857         err = __qlcnic_up(adapter, netdev);
2858         if (err)
2859                 qlcnic_detach(adapter);
2860
2861         return err;
2862 }
2863
2864 /*
2865  * qlcnic_close - Disables a network interface entry point
2866  */
2867 static int qlcnic_close(struct net_device *netdev)
2868 {
2869         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2870
2871         __qlcnic_down(adapter, netdev);
2872
2873         return 0;
2874 }
2875
2876 #define QLCNIC_VF_LB_BUCKET_SIZE 1
2877
2878 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2879 {
2880         void *head;
2881         int i;
2882         struct net_device *netdev = adapter->netdev;
2883         u32 filter_size = 0;
2884         u16 act_pci_func = 0;
2885
2886         if (adapter->fhash.fmax && adapter->fhash.fhead)
2887                 return;
2888
2889         act_pci_func = adapter->ahw->total_nic_func;
2890         spin_lock_init(&adapter->mac_learn_lock);
2891         spin_lock_init(&adapter->rx_mac_learn_lock);
2892
2893         if (qlcnic_sriov_vf_check(adapter)) {
2894                 filter_size = QLCNIC_83XX_SRIOV_VF_MAX_MAC - 1;
2895                 adapter->fhash.fbucket_size = QLCNIC_VF_LB_BUCKET_SIZE;
2896         } else if (qlcnic_82xx_check(adapter)) {
2897                 filter_size = QLCNIC_LB_MAX_FILTERS;
2898                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2899         } else {
2900                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2901                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2902         }
2903
2904         head = kcalloc(adapter->fhash.fbucket_size,
2905                        sizeof(struct hlist_head), GFP_ATOMIC);
2906
2907         if (!head)
2908                 return;
2909
2910         adapter->fhash.fmax = (filter_size / act_pci_func);
2911         adapter->fhash.fhead = head;
2912
2913         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2914                     act_pci_func, adapter->fhash.fmax);
2915
2916         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2917                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2918
2919         adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2920
2921         head = kcalloc(adapter->rx_fhash.fbucket_size,
2922                        sizeof(struct hlist_head), GFP_ATOMIC);
2923
2924         if (!head)
2925                 return;
2926
2927         adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2928         adapter->rx_fhash.fhead = head;
2929
2930         for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2931                 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2932 }
2933
2934 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2935 {
2936         if (adapter->fhash.fmax)
2937                 kfree(adapter->fhash.fhead);
2938
2939         adapter->fhash.fhead = NULL;
2940         adapter->fhash.fmax = 0;
2941
2942         if (adapter->rx_fhash.fmax)
2943                 kfree(adapter->rx_fhash.fhead);
2944
2945         adapter->rx_fhash.fmax = 0;
2946         adapter->rx_fhash.fhead = NULL;
2947 }
2948
2949 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2950 {
2951         struct net_device *netdev = adapter->netdev;
2952         u32 temp_state, temp_val, temp = 0;
2953         int rv = 0;
2954
2955         if (qlcnic_83xx_check(adapter))
2956                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2957
2958         if (qlcnic_82xx_check(adapter))
2959                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2960
2961         temp_state = qlcnic_get_temp_state(temp);
2962         temp_val = qlcnic_get_temp_val(temp);
2963
2964         if (temp_state == QLCNIC_TEMP_PANIC) {
2965                 dev_err(&netdev->dev,
2966                        "Device temperature %d degrees C exceeds"
2967                        " maximum allowed. Hardware has been shut down.\n",
2968                        temp_val);
2969                 rv = 1;
2970         } else if (temp_state == QLCNIC_TEMP_WARN) {
2971                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2972                         dev_err(&netdev->dev,
2973                                "Device temperature %d degrees C "
2974                                "exceeds operating range."
2975                                " Immediate action needed.\n",
2976                                temp_val);
2977                 }
2978         } else {
2979                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2980                         dev_info(&netdev->dev,
2981                                "Device temperature is now %d degrees C"
2982                                " in normal range.\n", temp_val);
2983                 }
2984         }
2985         adapter->ahw->temp = temp_state;
2986         return rv;
2987 }
2988
2989 static inline void dump_tx_ring_desc(struct qlcnic_host_tx_ring *tx_ring)
2990 {
2991         int i;
2992         struct cmd_desc_type0 *tx_desc_info;
2993
2994         for (i = 0; i < tx_ring->num_desc; i++) {
2995                 tx_desc_info = &tx_ring->desc_head[i];
2996                 pr_info("TX Desc: %d\n", i);
2997                 print_hex_dump(KERN_INFO, "TX: ", DUMP_PREFIX_OFFSET, 16, 1,
2998                                &tx_ring->desc_head[i],
2999                                sizeof(struct cmd_desc_type0), true);
3000         }
3001 }
3002
3003 static void qlcnic_dump_rings(struct qlcnic_adapter *adapter)
3004 {
3005         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
3006         struct net_device *netdev = adapter->netdev;
3007         struct qlcnic_host_rds_ring *rds_ring;
3008         struct qlcnic_host_sds_ring *sds_ring;
3009         struct qlcnic_host_tx_ring *tx_ring;
3010         int ring;
3011
3012         if (!netdev || !netif_running(netdev))
3013                 return;
3014
3015         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
3016                 rds_ring = &recv_ctx->rds_rings[ring];
3017                 if (!rds_ring)
3018                         continue;
3019                 netdev_info(netdev,
3020                             "rds_ring=%d crb_rcv_producer=%d producer=%u num_desc=%u\n",
3021                              ring, readl(rds_ring->crb_rcv_producer),
3022                              rds_ring->producer, rds_ring->num_desc);
3023         }
3024
3025         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3026                 sds_ring = &(recv_ctx->sds_rings[ring]);
3027                 if (!sds_ring)
3028                         continue;
3029                 netdev_info(netdev,
3030                             "sds_ring=%d crb_sts_consumer=%d consumer=%u crb_intr_mask=%d num_desc=%u\n",
3031                             ring, readl(sds_ring->crb_sts_consumer),
3032                             sds_ring->consumer, readl(sds_ring->crb_intr_mask),
3033                             sds_ring->num_desc);
3034         }
3035
3036         for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3037                 tx_ring = &adapter->tx_ring[ring];
3038                 if (!tx_ring)
3039                         continue;
3040                 netdev_info(netdev, "Tx ring=%d Context Id=0x%x\n",
3041                             ring, tx_ring->ctx_id);
3042                 netdev_info(netdev,
3043                             "xmit_finished=%llu, xmit_called=%llu, xmit_on=%llu, xmit_off=%llu\n",
3044                             tx_ring->tx_stats.xmit_finished,
3045                             tx_ring->tx_stats.xmit_called,
3046                             tx_ring->tx_stats.xmit_on,
3047                             tx_ring->tx_stats.xmit_off);
3048
3049                 if (tx_ring->crb_intr_mask)
3050                         netdev_info(netdev, "crb_intr_mask=%d\n",
3051                                     readl(tx_ring->crb_intr_mask));
3052
3053                 netdev_info(netdev,
3054                             "hw_producer=%d, sw_producer=%d sw_consumer=%d, hw_consumer=%d\n",
3055                             readl(tx_ring->crb_cmd_producer),
3056                             tx_ring->producer, tx_ring->sw_consumer,
3057                             le32_to_cpu(*(tx_ring->hw_consumer)));
3058
3059                 netdev_info(netdev, "Total desc=%d, Available desc=%d\n",
3060                             tx_ring->num_desc, qlcnic_tx_avail(tx_ring));
3061
3062                 if (netif_msg_tx_err(adapter->ahw))
3063                         dump_tx_ring_desc(tx_ring);
3064         }
3065
3066 }
3067
3068 static void qlcnic_tx_timeout(struct net_device *netdev)
3069 {
3070         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3071
3072         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3073                 return;
3074
3075         qlcnic_dump_rings(adapter);
3076
3077         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS ||
3078             netif_msg_tx_err(adapter->ahw)) {
3079                 netdev_err(netdev, "Tx timeout, reset the adapter.\n");
3080                 if (qlcnic_82xx_check(adapter))
3081                         adapter->need_fw_reset = 1;
3082                 else if (qlcnic_83xx_check(adapter))
3083                         qlcnic_83xx_idc_request_reset(adapter,
3084                                                       QLCNIC_FORCE_FW_DUMP_KEY);
3085         } else {
3086                 netdev_err(netdev, "Tx timeout, reset adapter context.\n");
3087                 adapter->ahw->reset_context = 1;
3088         }
3089 }
3090
3091 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
3092 {
3093         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3094         struct net_device_stats *stats = &netdev->stats;
3095
3096         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
3097                 qlcnic_update_stats(adapter);
3098
3099         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
3100         stats->tx_packets = adapter->stats.xmitfinished;
3101         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
3102         stats->tx_bytes = adapter->stats.txbytes;
3103         stats->rx_dropped = adapter->stats.rxdropped;
3104         stats->tx_dropped = adapter->stats.txdropped;
3105
3106         return stats;
3107 }
3108
3109 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
3110 {
3111         u32 status;
3112
3113         status = readl(adapter->isr_int_vec);
3114
3115         if (!(status & adapter->ahw->int_vec_bit))
3116                 return IRQ_NONE;
3117
3118         /* check interrupt state machine, to be sure */
3119         status = readl(adapter->crb_int_state_reg);
3120         if (!ISR_LEGACY_INT_TRIGGERED(status))
3121                 return IRQ_NONE;
3122
3123         writel(0xffffffff, adapter->tgt_status_reg);
3124         /* read twice to ensure write is flushed */
3125         readl(adapter->isr_int_vec);
3126         readl(adapter->isr_int_vec);
3127
3128         return IRQ_HANDLED;
3129 }
3130
3131 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
3132 {
3133         struct qlcnic_host_sds_ring *sds_ring = data;
3134         struct qlcnic_adapter *adapter = sds_ring->adapter;
3135
3136         if (adapter->flags & QLCNIC_MSIX_ENABLED)
3137                 goto done;
3138         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
3139                 writel(0xffffffff, adapter->tgt_status_reg);
3140                 goto done;
3141         }
3142
3143         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3144                 return IRQ_NONE;
3145
3146 done:
3147         adapter->ahw->diag_cnt++;
3148         qlcnic_enable_sds_intr(adapter, sds_ring);
3149         return IRQ_HANDLED;
3150 }
3151
3152 static irqreturn_t qlcnic_intr(int irq, void *data)
3153 {
3154         struct qlcnic_host_sds_ring *sds_ring = data;
3155         struct qlcnic_adapter *adapter = sds_ring->adapter;
3156
3157         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3158                 return IRQ_NONE;
3159
3160         napi_schedule(&sds_ring->napi);
3161
3162         return IRQ_HANDLED;
3163 }
3164
3165 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
3166 {
3167         struct qlcnic_host_sds_ring *sds_ring = data;
3168         struct qlcnic_adapter *adapter = sds_ring->adapter;
3169
3170         /* clear interrupt */
3171         writel(0xffffffff, adapter->tgt_status_reg);
3172
3173         napi_schedule(&sds_ring->napi);
3174         return IRQ_HANDLED;
3175 }
3176
3177 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
3178 {
3179         struct qlcnic_host_sds_ring *sds_ring = data;
3180
3181         napi_schedule(&sds_ring->napi);
3182         return IRQ_HANDLED;
3183 }
3184
3185 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
3186 {
3187         struct qlcnic_host_tx_ring *tx_ring = data;
3188
3189         napi_schedule(&tx_ring->napi);
3190         return IRQ_HANDLED;
3191 }
3192
3193 #ifdef CONFIG_NET_POLL_CONTROLLER
3194 static void qlcnic_poll_controller(struct net_device *netdev)
3195 {
3196         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3197         struct qlcnic_host_sds_ring *sds_ring;
3198         struct qlcnic_recv_context *recv_ctx;
3199         struct qlcnic_host_tx_ring *tx_ring;
3200         int ring;
3201
3202         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3203                 return;
3204
3205         recv_ctx = adapter->recv_ctx;
3206
3207         for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3208                 sds_ring = &recv_ctx->sds_rings[ring];
3209                 qlcnic_disable_sds_intr(adapter, sds_ring);
3210                 napi_schedule(&sds_ring->napi);
3211         }
3212
3213         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
3214                 /* Only Multi-Tx queue capable devices need to
3215                  * schedule NAPI for TX rings
3216                  */
3217                 if ((qlcnic_83xx_check(adapter) &&
3218                      (adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
3219                     (qlcnic_82xx_check(adapter) &&
3220                      !qlcnic_check_multi_tx(adapter)))
3221                         return;
3222
3223                 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3224                         tx_ring = &adapter->tx_ring[ring];
3225                         qlcnic_disable_tx_intr(adapter, tx_ring);
3226                         napi_schedule(&tx_ring->napi);
3227                 }
3228         }
3229 }
3230 #endif
3231
3232 static void
3233 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
3234 {
3235         u32 val;
3236
3237         val = adapter->portnum & 0xf;
3238         val |= encoding << 7;
3239         val |= (jiffies - adapter->dev_rst_time) << 8;
3240
3241         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
3242         adapter->dev_rst_time = jiffies;
3243 }
3244
3245 static int
3246 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
3247 {
3248         u32  val;
3249
3250         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
3251                         state != QLCNIC_DEV_NEED_QUISCENT);
3252
3253         if (qlcnic_api_lock(adapter))
3254                 return -EIO;
3255
3256         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3257
3258         if (state == QLCNIC_DEV_NEED_RESET)
3259                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3260         else if (state == QLCNIC_DEV_NEED_QUISCENT)
3261                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
3262
3263         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3264
3265         qlcnic_api_unlock(adapter);
3266
3267         return 0;
3268 }
3269
3270 static int
3271 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
3272 {
3273         u32  val;
3274
3275         if (qlcnic_api_lock(adapter))
3276                 return -EBUSY;
3277
3278         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3279         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3280         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3281
3282         qlcnic_api_unlock(adapter);
3283
3284         return 0;
3285 }
3286
3287 void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
3288 {
3289         u32  val;
3290
3291         if (qlcnic_api_lock(adapter))
3292                 goto err;
3293
3294         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3295         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
3296         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3297
3298         if (failed) {
3299                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3300                                     QLCNIC_DEV_FAILED);
3301                 dev_info(&adapter->pdev->dev,
3302                                 "Device state set to Failed. Please Reboot\n");
3303         } else if (!(val & 0x11111111))
3304                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3305                                     QLCNIC_DEV_COLD);
3306
3307         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3308         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3309         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3310
3311         qlcnic_api_unlock(adapter);
3312 err:
3313         adapter->fw_fail_cnt = 0;
3314         adapter->flags &= ~QLCNIC_FW_HANG;
3315         clear_bit(__QLCNIC_START_FW, &adapter->state);
3316         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3317 }
3318
3319 /* Grab api lock, before checking state */
3320 static int
3321 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
3322 {
3323         int act, state, active_mask;
3324         struct qlcnic_hardware_context *ahw = adapter->ahw;
3325
3326         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3327         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3328
3329         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
3330                 active_mask = (~(1 << (ahw->pci_func * 4)));
3331                 act = act & active_mask;
3332         }
3333
3334         if (((state & 0x11111111) == (act & 0x11111111)) ||
3335                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
3336                 return 0;
3337         else
3338                 return 1;
3339 }
3340
3341 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
3342 {
3343         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
3344
3345         if (val != QLCNIC_DRV_IDC_VER) {
3346                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
3347                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
3348         }
3349
3350         return 0;
3351 }
3352
3353 static int
3354 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
3355 {
3356         u32 val, prev_state;
3357         u8 dev_init_timeo = adapter->dev_init_timeo;
3358         u8 portnum = adapter->portnum;
3359         u8 ret;
3360
3361         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
3362                 return 1;
3363
3364         if (qlcnic_api_lock(adapter))
3365                 return -1;
3366
3367         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3368         if (!(val & (1 << (portnum * 4)))) {
3369                 QLC_DEV_SET_REF_CNT(val, portnum);
3370                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3371         }
3372
3373         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3374         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
3375
3376         switch (prev_state) {
3377         case QLCNIC_DEV_COLD:
3378                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3379                                     QLCNIC_DEV_INITIALIZING);
3380                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
3381                                     QLCNIC_DRV_IDC_VER);
3382                 qlcnic_idc_debug_info(adapter, 0);
3383                 qlcnic_api_unlock(adapter);
3384                 return 1;
3385
3386         case QLCNIC_DEV_READY:
3387                 ret = qlcnic_check_idc_ver(adapter);
3388                 qlcnic_api_unlock(adapter);
3389                 return ret;
3390
3391         case QLCNIC_DEV_NEED_RESET:
3392                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3393                 QLC_DEV_SET_RST_RDY(val, portnum);
3394                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3395                 break;
3396
3397         case QLCNIC_DEV_NEED_QUISCENT:
3398                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3399                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
3400                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3401                 break;
3402
3403         case QLCNIC_DEV_FAILED:
3404                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
3405                 qlcnic_api_unlock(adapter);
3406                 return -1;
3407
3408         case QLCNIC_DEV_INITIALIZING:
3409         case QLCNIC_DEV_QUISCENT:
3410                 break;
3411         }
3412
3413         qlcnic_api_unlock(adapter);
3414
3415         do {
3416                 msleep(1000);
3417                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3418
3419                 if (prev_state == QLCNIC_DEV_QUISCENT)
3420                         continue;
3421         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
3422
3423         if (!dev_init_timeo) {
3424                 dev_err(&adapter->pdev->dev,
3425                         "Waiting for device to initialize timeout\n");
3426                 return -1;
3427         }
3428
3429         if (qlcnic_api_lock(adapter))
3430                 return -1;
3431
3432         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3433         QLC_DEV_CLR_RST_QSCNT(val, portnum);
3434         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3435
3436         ret = qlcnic_check_idc_ver(adapter);
3437         qlcnic_api_unlock(adapter);
3438
3439         return ret;
3440 }
3441
3442 static void
3443 qlcnic_fwinit_work(struct work_struct *work)
3444 {
3445         struct qlcnic_adapter *adapter = container_of(work,
3446                         struct qlcnic_adapter, fw_work.work);
3447         u32 dev_state = 0xf;
3448         u32 val;
3449
3450         if (qlcnic_api_lock(adapter))
3451                 goto err_ret;
3452
3453         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3454         if (dev_state == QLCNIC_DEV_QUISCENT ||
3455             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3456                 qlcnic_api_unlock(adapter);
3457                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
3458                                                 FW_POLL_DELAY * 2);
3459                 return;
3460         }
3461
3462         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
3463                 qlcnic_api_unlock(adapter);
3464                 goto wait_npar;
3465         }
3466
3467         if (dev_state == QLCNIC_DEV_INITIALIZING ||
3468             dev_state == QLCNIC_DEV_READY) {
3469                 dev_info(&adapter->pdev->dev, "Detected state change from "
3470                                 "DEV_NEED_RESET, skipping ack check\n");
3471                 goto skip_ack_check;
3472         }
3473
3474         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
3475                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
3476                                         adapter->reset_ack_timeo);
3477                 goto skip_ack_check;
3478         }
3479
3480         if (!qlcnic_check_drv_state(adapter)) {
3481 skip_ack_check:
3482                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3483
3484                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
3485                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3486                                             QLCNIC_DEV_INITIALIZING);
3487                         set_bit(__QLCNIC_START_FW, &adapter->state);
3488                         QLCDB(adapter, DRV, "Restarting fw\n");
3489                         qlcnic_idc_debug_info(adapter, 0);
3490                         val = QLC_SHARED_REG_RD32(adapter,
3491                                                   QLCNIC_CRB_DRV_STATE);
3492                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3493                         QLC_SHARED_REG_WR32(adapter,
3494                                             QLCNIC_CRB_DRV_STATE, val);
3495                 }
3496
3497                 qlcnic_api_unlock(adapter);
3498
3499                 rtnl_lock();
3500                 if (qlcnic_check_fw_dump_state(adapter) &&
3501                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3502                         QLCDB(adapter, DRV, "Take FW dump\n");
3503                         qlcnic_dump_fw(adapter);
3504                         adapter->flags |= QLCNIC_FW_HANG;
3505                 }
3506                 rtnl_unlock();
3507
3508                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
3509                 if (!adapter->nic_ops->start_firmware(adapter)) {
3510                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3511                         adapter->fw_wait_cnt = 0;
3512                         return;
3513                 }
3514                 goto err_ret;
3515         }
3516
3517         qlcnic_api_unlock(adapter);
3518
3519 wait_npar:
3520         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3521         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
3522
3523         switch (dev_state) {
3524         case QLCNIC_DEV_READY:
3525                 if (!qlcnic_start_firmware(adapter)) {
3526                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3527                         adapter->fw_wait_cnt = 0;
3528                         return;
3529                 }
3530         case QLCNIC_DEV_FAILED:
3531                 break;
3532         default:
3533                 qlcnic_schedule_work(adapter,
3534                         qlcnic_fwinit_work, FW_POLL_DELAY);
3535                 return;
3536         }
3537
3538 err_ret:
3539         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
3540                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
3541         netif_device_attach(adapter->netdev);
3542         qlcnic_clr_all_drv_state(adapter, 0);
3543 }
3544
3545 static void
3546 qlcnic_detach_work(struct work_struct *work)
3547 {
3548         struct qlcnic_adapter *adapter = container_of(work,
3549                         struct qlcnic_adapter, fw_work.work);
3550         struct net_device *netdev = adapter->netdev;
3551         u32 status;
3552
3553         netif_device_detach(netdev);
3554
3555         /* Dont grab rtnl lock during Quiscent mode */
3556         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3557                 if (netif_running(netdev))
3558                         __qlcnic_down(adapter, netdev);
3559         } else
3560                 qlcnic_down(adapter, netdev);
3561
3562         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3563
3564         if (status & QLCNIC_RCODE_FATAL_ERROR) {
3565                 dev_err(&adapter->pdev->dev,
3566                         "Detaching the device: peg halt status1=0x%x\n",
3567                                         status);
3568
3569                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
3570                         dev_err(&adapter->pdev->dev,
3571                         "On board active cooling fan failed. "
3572                                 "Device has been halted.\n");
3573                         dev_err(&adapter->pdev->dev,
3574                                 "Replace the adapter.\n");
3575                 }
3576
3577                 goto err_ret;
3578         }
3579
3580         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
3581                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
3582                         adapter->ahw->temp);
3583                 goto err_ret;
3584         }
3585
3586         /* Dont ack if this instance is the reset owner */
3587         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3588                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
3589                         dev_err(&adapter->pdev->dev,
3590                                 "Failed to set driver state,"
3591                                         "detaching the device.\n");
3592                         goto err_ret;
3593                 }
3594         }
3595
3596         adapter->fw_wait_cnt = 0;
3597
3598         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3599
3600         return;
3601
3602 err_ret:
3603         netif_device_attach(netdev);
3604         qlcnic_clr_all_drv_state(adapter, 1);
3605 }
3606
3607 /*Transit NPAR state to NON Operational */
3608 static void
3609 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3610 {
3611         u32 state;
3612
3613         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3614         if (state == QLCNIC_DEV_NPAR_NON_OPER)
3615                 return;
3616
3617         if (qlcnic_api_lock(adapter))
3618                 return;
3619         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3620                             QLCNIC_DEV_NPAR_NON_OPER);
3621         qlcnic_api_unlock(adapter);
3622 }
3623
3624 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter,
3625                                           u32 key)
3626 {
3627         u32 state, xg_val = 0, gb_val = 0;
3628
3629         qlcnic_xg_set_xg0_mask(xg_val);
3630         qlcnic_xg_set_xg1_mask(xg_val);
3631         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3632         qlcnic_gb_set_gb0_mask(gb_val);
3633         qlcnic_gb_set_gb1_mask(gb_val);
3634         qlcnic_gb_set_gb2_mask(gb_val);
3635         qlcnic_gb_set_gb3_mask(gb_val);
3636         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3637         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3638                                 " on all ports\n");
3639         adapter->need_fw_reset = 1;
3640
3641         if (qlcnic_api_lock(adapter))
3642                 return;
3643
3644         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3645
3646         if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
3647                 netdev_err(adapter->netdev, "%s: Device is in non-operational state\n",
3648                            __func__);
3649                 qlcnic_api_unlock(adapter);
3650
3651                 return;
3652         }
3653
3654         if (state == QLCNIC_DEV_READY) {
3655                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3656                                     QLCNIC_DEV_NEED_RESET);
3657                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3658                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3659                 qlcnic_idc_debug_info(adapter, 0);
3660         }
3661
3662         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3663                             QLCNIC_DEV_NPAR_NON_OPER);
3664         qlcnic_api_unlock(adapter);
3665 }
3666
3667 /* Transit to NPAR READY state from NPAR NOT READY state */
3668 static void
3669 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3670 {
3671         if (qlcnic_api_lock(adapter))
3672                 return;
3673
3674         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3675                             QLCNIC_DEV_NPAR_OPER);
3676         QLCDB(adapter, DRV, "NPAR operational state set\n");
3677
3678         qlcnic_api_unlock(adapter);
3679 }
3680
3681 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3682                           work_func_t func, int delay)
3683 {
3684         if (test_bit(__QLCNIC_AER, &adapter->state))
3685                 return;
3686
3687         INIT_DELAYED_WORK(&adapter->fw_work, func);
3688         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3689                            round_jiffies_relative(delay));
3690 }
3691
3692 static void
3693 qlcnic_attach_work(struct work_struct *work)
3694 {
3695         struct qlcnic_adapter *adapter = container_of(work,
3696                                 struct qlcnic_adapter, fw_work.work);
3697         struct net_device *netdev = adapter->netdev;
3698         u32 npar_state;
3699
3700         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3701                 npar_state = QLC_SHARED_REG_RD32(adapter,
3702                                                  QLCNIC_CRB_DEV_NPAR_STATE);
3703                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3704                         qlcnic_clr_all_drv_state(adapter, 0);
3705                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3706                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
3707                                                         FW_POLL_DELAY);
3708                 else
3709                         goto attach;
3710                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3711                 return;
3712         }
3713 attach:
3714         qlcnic_dcb_get_info(adapter->dcb);
3715
3716         if (netif_running(netdev)) {
3717                 if (qlcnic_up(adapter, netdev))
3718                         goto done;
3719
3720                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3721         }
3722
3723 done:
3724         netif_device_attach(netdev);
3725         adapter->fw_fail_cnt = 0;
3726         adapter->flags &= ~QLCNIC_FW_HANG;
3727         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3728         if (adapter->portnum == 0)
3729                 qlcnic_set_drv_version(adapter);
3730
3731         if (!qlcnic_clr_drv_state(adapter))
3732                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3733                                                         FW_POLL_DELAY);
3734 }
3735
3736 static int
3737 qlcnic_check_health(struct qlcnic_adapter *adapter)
3738 {
3739         struct qlcnic_hardware_context *ahw = adapter->ahw;
3740         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
3741         u32 state = 0, heartbeat;
3742         u32 peg_status;
3743         int err = 0;
3744
3745         if (qlcnic_check_temp(adapter))
3746                 goto detach;
3747
3748         if (adapter->need_fw_reset)
3749                 qlcnic_dev_request_reset(adapter, 0);
3750
3751         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3752         if (state == QLCNIC_DEV_NEED_RESET) {
3753                 qlcnic_set_npar_non_operational(adapter);
3754                 adapter->need_fw_reset = 1;
3755         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3756                 goto detach;
3757
3758         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3759         if (heartbeat != adapter->heartbeat) {
3760                 adapter->heartbeat = heartbeat;
3761                 adapter->fw_fail_cnt = 0;
3762                 if (adapter->need_fw_reset)
3763                         goto detach;
3764
3765                 if (ahw->reset_context && qlcnic_auto_fw_reset)
3766                         qlcnic_reset_hw_context(adapter);
3767
3768                 return 0;
3769         }
3770
3771         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3772                 return 0;
3773
3774         adapter->flags |= QLCNIC_FW_HANG;
3775
3776         qlcnic_dev_request_reset(adapter, 0);
3777
3778         if (qlcnic_auto_fw_reset)
3779                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3780
3781         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3782         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3783         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3784                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3785                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3786                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3787                         "PEG_NET_4_PC: 0x%x\n",
3788                         peg_status,
3789                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3790                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3791                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3792                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3793                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3794                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3795         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3796                 dev_err(&adapter->pdev->dev,
3797                         "Firmware aborted with error code 0x00006700. "
3798                                 "Device is being reset.\n");
3799 detach:
3800         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3801                 QLCNIC_DEV_NEED_RESET;
3802
3803         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3804                                                       &adapter->state)) {
3805
3806                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3807                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3808         } else if (!qlcnic_auto_fw_reset && fw_dump->enable &&
3809                    adapter->flags & QLCNIC_FW_RESET_OWNER) {
3810                 qlcnic_dump_fw(adapter);
3811         }
3812
3813         return 1;
3814 }
3815
3816 void qlcnic_fw_poll_work(struct work_struct *work)
3817 {
3818         struct qlcnic_adapter *adapter = container_of(work,
3819                                 struct qlcnic_adapter, fw_work.work);
3820
3821         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3822                 goto reschedule;
3823
3824
3825         if (qlcnic_check_health(adapter))
3826                 return;
3827
3828         if (adapter->fhash.fnum)
3829                 qlcnic_prune_lb_filters(adapter);
3830
3831 reschedule:
3832         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3833 }
3834
3835 static int qlcnic_is_first_func(struct pci_dev *pdev)
3836 {
3837         struct pci_dev *oth_pdev;
3838         int val = pdev->devfn;
3839
3840         while (val-- > 0) {
3841                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3842                         (pdev->bus), pdev->bus->number,
3843                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3844                 if (!oth_pdev)
3845                         continue;
3846
3847                 if (oth_pdev->current_state != PCI_D3cold) {
3848                         pci_dev_put(oth_pdev);
3849                         return 0;
3850                 }
3851                 pci_dev_put(oth_pdev);
3852         }
3853         return 1;
3854 }
3855
3856 static int qlcnic_attach_func(struct pci_dev *pdev)
3857 {
3858         int err, first_func;
3859         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3860         struct net_device *netdev = adapter->netdev;
3861
3862         pdev->error_state = pci_channel_io_normal;
3863
3864         err = pci_enable_device(pdev);
3865         if (err)
3866                 return err;
3867
3868         pci_set_master(pdev);
3869         pci_restore_state(pdev);
3870
3871         first_func = qlcnic_is_first_func(pdev);
3872
3873         if (qlcnic_api_lock(adapter))
3874                 return -EINVAL;
3875
3876         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3877                 adapter->need_fw_reset = 1;
3878                 set_bit(__QLCNIC_START_FW, &adapter->state);
3879                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3880                                     QLCNIC_DEV_INITIALIZING);
3881                 QLCDB(adapter, DRV, "Restarting fw\n");
3882         }
3883         qlcnic_api_unlock(adapter);
3884
3885         err = qlcnic_start_firmware(adapter);
3886         if (err)
3887                 return err;
3888
3889         qlcnic_clr_drv_state(adapter);
3890         kfree(adapter->msix_entries);
3891         adapter->msix_entries = NULL;
3892         err = qlcnic_setup_intr(adapter);
3893
3894         if (err) {
3895                 kfree(adapter->msix_entries);
3896                 netdev_err(netdev, "failed to setup interrupt\n");
3897                 return err;
3898         }
3899
3900         if (netif_running(netdev)) {
3901                 err = qlcnic_attach(adapter);
3902                 if (err) {
3903                         qlcnic_clr_all_drv_state(adapter, 1);
3904                         clear_bit(__QLCNIC_AER, &adapter->state);
3905                         netif_device_attach(netdev);
3906                         return err;
3907                 }
3908
3909                 err = qlcnic_up(adapter, netdev);
3910                 if (err)
3911                         goto done;
3912
3913                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3914         }
3915  done:
3916         netif_device_attach(netdev);
3917         return err;
3918 }
3919
3920 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
3921                                                       pci_channel_state_t state)
3922 {
3923         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3924         struct net_device *netdev = adapter->netdev;
3925
3926         if (state == pci_channel_io_perm_failure)
3927                 return PCI_ERS_RESULT_DISCONNECT;
3928
3929         if (state == pci_channel_io_normal)
3930                 return PCI_ERS_RESULT_RECOVERED;
3931
3932         set_bit(__QLCNIC_AER, &adapter->state);
3933         netif_device_detach(netdev);
3934
3935         cancel_delayed_work_sync(&adapter->fw_work);
3936
3937         if (netif_running(netdev))
3938                 qlcnic_down(adapter, netdev);
3939
3940         qlcnic_detach(adapter);
3941         qlcnic_teardown_intr(adapter);
3942
3943         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3944
3945         pci_save_state(pdev);
3946         pci_disable_device(pdev);
3947
3948         return PCI_ERS_RESULT_NEED_RESET;
3949 }
3950
3951 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
3952 {
3953         pci_ers_result_t res;
3954
3955         rtnl_lock();
3956         res = qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3957                                          PCI_ERS_RESULT_RECOVERED;
3958         rtnl_unlock();
3959
3960         return res;
3961 }
3962
3963 static void qlcnic_82xx_io_resume(struct pci_dev *pdev)
3964 {
3965         u32 state;
3966         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3967
3968         pci_cleanup_aer_uncorrect_error_status(pdev);
3969         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3970         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3971                                                             &adapter->state))
3972                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3973                                      FW_POLL_DELAY);
3974 }
3975
3976 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3977                                                  pci_channel_state_t state)
3978 {
3979         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3980         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3981
3982         if (hw_ops->io_error_detected) {
3983                 return hw_ops->io_error_detected(pdev, state);
3984         } else {
3985                 dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
3986                 return PCI_ERS_RESULT_DISCONNECT;
3987         }
3988 }
3989
3990 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3991 {
3992         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3993         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3994
3995         if (hw_ops->io_slot_reset) {
3996                 return hw_ops->io_slot_reset(pdev);
3997         } else {
3998                 dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
3999                 return PCI_ERS_RESULT_DISCONNECT;
4000         }
4001 }
4002
4003 static void qlcnic_io_resume(struct pci_dev *pdev)
4004 {
4005         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
4006         struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
4007
4008         if (hw_ops->io_resume)
4009                 hw_ops->io_resume(pdev);
4010         else
4011                 dev_err(&pdev->dev, "AER resume handler not registered.\n");
4012 }
4013
4014
4015 static int
4016 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
4017 {
4018         int err;
4019
4020         err = qlcnic_can_start_firmware(adapter);
4021         if (err)
4022                 return err;
4023
4024         err = qlcnic_check_npar_opertional(adapter);
4025         if (err)
4026                 return err;
4027
4028         err = qlcnic_initialize_nic(adapter);
4029         if (err)
4030                 return err;
4031
4032         qlcnic_check_options(adapter);
4033
4034         err = qlcnic_set_eswitch_port_config(adapter);
4035         if (err)
4036                 return err;
4037
4038         adapter->need_fw_reset = 0;
4039
4040         return err;
4041 }
4042
4043 int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt,
4044                           int queue_type)
4045 {
4046         struct net_device *netdev = adapter->netdev;
4047         u8 max_hw_rings = 0;
4048         char buf[8];
4049         int cur_rings;
4050
4051         if (queue_type == QLCNIC_RX_QUEUE) {
4052                 max_hw_rings = adapter->max_sds_rings;
4053                 cur_rings = adapter->drv_sds_rings;
4054                 strcpy(buf, "SDS");
4055         } else if (queue_type == QLCNIC_TX_QUEUE) {
4056                 max_hw_rings = adapter->max_tx_rings;
4057                 cur_rings = adapter->drv_tx_rings;
4058                 strcpy(buf, "Tx");
4059         }
4060
4061         if (!is_power_of_2(ring_cnt)) {
4062                 netdev_err(netdev, "%s rings value should be a power of 2\n",
4063                            buf);
4064                 return -EINVAL;
4065         }
4066
4067         if (qlcnic_82xx_check(adapter) && (queue_type == QLCNIC_TX_QUEUE) &&
4068             !qlcnic_check_multi_tx(adapter)) {
4069                         netdev_err(netdev, "No Multi Tx queue support\n");
4070                         return -EINVAL;
4071         }
4072
4073         if (ring_cnt > num_online_cpus()) {
4074                 netdev_err(netdev,
4075                            "%s value[%u] should not be higher than, number of online CPUs\n",
4076                            buf, num_online_cpus());
4077                 return -EINVAL;
4078         }
4079
4080         return 0;
4081 }
4082
4083 int qlcnic_setup_rings(struct qlcnic_adapter *adapter)
4084 {
4085         struct net_device *netdev = adapter->netdev;
4086         u8 tx_rings, rx_rings;
4087         int err;
4088
4089         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
4090                 return -EBUSY;
4091
4092         tx_rings = adapter->drv_tss_rings;
4093         rx_rings = adapter->drv_rss_rings;
4094
4095         netif_device_detach(netdev);
4096
4097         err = qlcnic_set_real_num_queues(adapter, tx_rings, rx_rings);
4098         if (err)
4099                 goto done;
4100
4101         if (netif_running(netdev))
4102                 __qlcnic_down(adapter, netdev);
4103
4104         qlcnic_detach(adapter);
4105
4106         if (qlcnic_83xx_check(adapter)) {
4107                 qlcnic_83xx_free_mbx_intr(adapter);
4108                 qlcnic_83xx_enable_mbx_poll(adapter);
4109         }
4110
4111         qlcnic_teardown_intr(adapter);
4112
4113         err = qlcnic_setup_intr(adapter);
4114         if (err) {
4115                 kfree(adapter->msix_entries);
4116                 netdev_err(netdev, "failed to setup interrupt\n");
4117                 return err;
4118         }
4119
4120         /* Check if we need to update real_num_{tx|rx}_queues because
4121          * qlcnic_setup_intr() may change Tx/Rx rings size
4122          */
4123         if ((tx_rings != adapter->drv_tx_rings) ||
4124             (rx_rings != adapter->drv_sds_rings)) {
4125                 err = qlcnic_set_real_num_queues(adapter,
4126                                                  adapter->drv_tx_rings,
4127                                                  adapter->drv_sds_rings);
4128                 if (err)
4129                         goto done;
4130         }
4131
4132         if (qlcnic_83xx_check(adapter)) {
4133                 qlcnic_83xx_initialize_nic(adapter, 1);
4134                 err = qlcnic_83xx_setup_mbx_intr(adapter);
4135                 qlcnic_83xx_disable_mbx_poll(adapter);
4136                 if (err) {
4137                         dev_err(&adapter->pdev->dev,
4138                                 "failed to setup mbx interrupt\n");
4139                         goto done;
4140                 }
4141         }
4142
4143         if (netif_running(netdev)) {
4144                 err = qlcnic_attach(adapter);
4145                 if (err)
4146                         goto done;
4147                 err = __qlcnic_up(adapter, netdev);
4148                 if (err)
4149                         goto done;
4150                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
4151         }
4152 done:
4153         netif_device_attach(netdev);
4154         clear_bit(__QLCNIC_RESETTING, &adapter->state);
4155         return err;
4156 }
4157
4158 #ifdef CONFIG_INET
4159
4160 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4161
4162 static void
4163 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4164                         struct net_device *dev, unsigned long event)
4165 {
4166         struct in_device *indev;
4167
4168         indev = in_dev_get(dev);
4169         if (!indev)
4170                 return;
4171
4172         for_ifa(indev) {
4173                 switch (event) {
4174                 case NETDEV_UP:
4175                         qlcnic_config_ipaddr(adapter,
4176                                         ifa->ifa_address, QLCNIC_IP_UP);
4177                         break;
4178                 case NETDEV_DOWN:
4179                         qlcnic_config_ipaddr(adapter,
4180                                         ifa->ifa_address, QLCNIC_IP_DOWN);
4181                         break;
4182                 default:
4183                         break;
4184                 }
4185         } endfor_ifa(indev);
4186
4187         in_dev_put(indev);
4188 }
4189
4190 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4191 {
4192         struct qlcnic_adapter *adapter = netdev_priv(netdev);
4193         struct net_device *dev;
4194         u16 vid;
4195
4196         qlcnic_config_indev_addr(adapter, netdev, event);
4197
4198         rcu_read_lock();
4199         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
4200                 dev = __vlan_find_dev_deep_rcu(netdev, htons(ETH_P_8021Q), vid);
4201                 if (!dev)
4202                         continue;
4203                 qlcnic_config_indev_addr(adapter, dev, event);
4204         }
4205         rcu_read_unlock();
4206 }
4207
4208 static int qlcnic_netdev_event(struct notifier_block *this,
4209                                  unsigned long event, void *ptr)
4210 {
4211         struct qlcnic_adapter *adapter;
4212         struct net_device *dev = netdev_notifier_info_to_dev(ptr);
4213
4214 recheck:
4215         if (dev == NULL)
4216                 goto done;
4217
4218         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4219                 dev = vlan_dev_real_dev(dev);
4220                 goto recheck;
4221         }
4222
4223         if (!is_qlcnic_netdev(dev))
4224                 goto done;
4225
4226         adapter = netdev_priv(dev);
4227
4228         if (!adapter)
4229                 goto done;
4230
4231         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4232                 goto done;
4233
4234         qlcnic_config_indev_addr(adapter, dev, event);
4235 done:
4236         return NOTIFY_DONE;
4237 }
4238
4239 static int
4240 qlcnic_inetaddr_event(struct notifier_block *this,
4241                 unsigned long event, void *ptr)
4242 {
4243         struct qlcnic_adapter *adapter;
4244         struct net_device *dev;
4245
4246         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4247
4248         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4249
4250 recheck:
4251         if (dev == NULL)
4252                 goto done;
4253
4254         if (dev->priv_flags & IFF_802_1Q_VLAN) {
4255                 dev = vlan_dev_real_dev(dev);
4256                 goto recheck;
4257         }
4258
4259         if (!is_qlcnic_netdev(dev))
4260                 goto done;
4261
4262         adapter = netdev_priv(dev);
4263
4264         if (!adapter)
4265                 goto done;
4266
4267         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4268                 goto done;
4269
4270         switch (event) {
4271         case NETDEV_UP:
4272                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4273
4274                 break;
4275         case NETDEV_DOWN:
4276                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4277
4278                 break;
4279         default:
4280                 break;
4281         }
4282
4283 done:
4284         return NOTIFY_DONE;
4285 }
4286
4287 static struct notifier_block    qlcnic_netdev_cb = {
4288         .notifier_call = qlcnic_netdev_event,
4289 };
4290
4291 static struct notifier_block qlcnic_inetaddr_cb = {
4292         .notifier_call = qlcnic_inetaddr_event,
4293 };
4294 #else
4295 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4296 { }
4297 #endif
4298 static const struct pci_error_handlers qlcnic_err_handler = {
4299         .error_detected = qlcnic_io_error_detected,
4300         .slot_reset = qlcnic_io_slot_reset,
4301         .resume = qlcnic_io_resume,
4302 };
4303
4304 static struct pci_driver qlcnic_driver = {
4305         .name = qlcnic_driver_name,
4306         .id_table = qlcnic_pci_tbl,
4307         .probe = qlcnic_probe,
4308         .remove = qlcnic_remove,
4309 #ifdef CONFIG_PM
4310         .suspend = qlcnic_suspend,
4311         .resume = qlcnic_resume,
4312 #endif
4313         .shutdown = qlcnic_shutdown,
4314         .err_handler = &qlcnic_err_handler,
4315 #ifdef CONFIG_QLCNIC_SRIOV
4316         .sriov_configure = qlcnic_pci_sriov_configure,
4317 #endif
4318
4319 };
4320
4321 static int __init qlcnic_init_module(void)
4322 {
4323         int ret;
4324
4325         printk(KERN_INFO "%s\n", qlcnic_driver_string);
4326
4327 #ifdef CONFIG_INET
4328         register_netdevice_notifier(&qlcnic_netdev_cb);
4329         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4330 #endif
4331
4332         ret = pci_register_driver(&qlcnic_driver);
4333         if (ret) {
4334 #ifdef CONFIG_INET
4335                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4336                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4337 #endif
4338         }
4339
4340         return ret;
4341 }
4342
4343 module_init(qlcnic_init_module);
4344
4345 static void __exit qlcnic_exit_module(void)
4346 {
4347         pci_unregister_driver(&qlcnic_driver);
4348
4349 #ifdef CONFIG_INET
4350         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4351         unregister_netdevice_notifier(&qlcnic_netdev_cb);
4352 #endif
4353 }
4354
4355 module_exit(qlcnic_exit_module);