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

   1 /*
   2  * QLogic qlcnic NIC Driver
   3  * Copyright (c) 2009-2013 QLogic Corporation
   4  *
   5  * See LICENSE.qlcnic for copyright and licensing details.
   6  */
   7
   8 #include <linux/vmalloc.h>
   9 #include <linux/interrupt.h>
  10
  11 #include "qlcnic.h"
  12 #include "qlcnic_sriov.h"
  13 #include "qlcnic_hw.h"
  14
  15 #include <linux/swab.h>
  16 #include <linux/dma-mapping.h>
  17 #include <linux/if_vlan.h>
  18 #include <net/ip.h>
  19 #include <linux/ipv6.h>
  20 #include <linux/inetdevice.h>
  21 #include <linux/aer.h>
  22 #include <linux/log2.h>
  23 #include <linux/pci.h>
  24
  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");
  53 module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);
  54
  55 int qlcnic_config_npars;
  56 module_param(qlcnic_config_npars, int, 0444);
  57 MODULE_PARM_DESC(qlcnic_config_npars, "Configure NPARs (0=disabled, 1=enabled");
  58
  59 static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
  60 static void qlcnic_remove(struct pci_dev *pdev);
  61 static int qlcnic_open(struct net_device *netdev);
  62 static int qlcnic_close(struct net_device *netdev);
  63 static void qlcnic_tx_timeout(struct net_device *netdev);
  64 static void qlcnic_attach_work(struct work_struct *work);
  65 static void qlcnic_fwinit_work(struct work_struct *work);
  66 static void qlcnic_fw_poll_work(struct work_struct *work);
  67 #ifdef CONFIG_NET_POLL_CONTROLLER
  68 static void qlcnic_poll_controller(struct net_device *netdev);
  69 #endif
  70
  71 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
  72 static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8);
  73 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
  74
  75 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
  76 static irqreturn_t qlcnic_intr(int irq, void *data);
  77 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
  78 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
  79 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data);
  80
  81 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
  82 static int qlcnic_start_firmware(struct qlcnic_adapter *);
  83
  84 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
  85 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
  86 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
  87 static void qlcnic_set_netdev_features(struct qlcnic_adapter *,
  88                                 struct qlcnic_esw_func_cfg *);
  89 static int qlcnic_vlan_rx_add(struct net_device *, __be16, u16);
  90 static int qlcnic_vlan_rx_del(struct net_device *, __be16, u16);
  91
  92 #define QLCNIC_IS_TSO_CAPABLE(adapter)  \
  93         ((adapter)->ahw->capabilities & QLCNIC_FW_CAPABILITY_TSO)
  94
  95 static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
  96 {
  97         struct qlcnic_hardware_context *ahw = adapter->ahw;
  98
  99         if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
 100                 return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
 101         else
 102                 return 1;
 103 }
 104
 105 /*  PCI Device ID Table  */
 106 #define ENTRY(device) \
 107         {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
 108         .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
 109
 110 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
 111         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
 112         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
 113         ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE834X),
 114         {0,}
 115 };
 116
 117 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
 118
 119
 120 inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
 121 {
 122         writel(tx_ring->producer, tx_ring->crb_cmd_producer);
 123 }
 124
 125 static const u32 msi_tgt_status[8] = {
 126         ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
 127         ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
 128         ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
 129         ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
 130 };
 131
 132 static const u32 qlcnic_reg_tbl[] = {
 133         0x1B20A8,       /* PEG_HALT_STAT1 */
 134         0x1B20AC,       /* PEG_HALT_STAT2 */
 135         0x1B20B0,       /* FW_HEARTBEAT */
 136         0x1B2100,       /* LOCK ID */
 137         0x1B2128,       /* FW_CAPABILITIES */
 138         0x1B2138,       /* drv active */
 139         0x1B2140,       /* dev state */
 140         0x1B2144,       /* drv state */
 141         0x1B2148,       /* drv scratch */
 142         0x1B214C,       /* dev partition info */
 143         0x1B2174,       /* drv idc ver */
 144         0x1B2150,       /* fw version major */
 145         0x1B2154,       /* fw version minor */
 146         0x1B2158,       /* fw version sub */
 147         0x1B219C,       /* npar state */
 148         0x1B21FC,       /* FW_IMG_VALID */
 149         0x1B2250,       /* CMD_PEG_STATE */
 150         0x1B233C,       /* RCV_PEG_STATE */
 151         0x1B23B4,       /* ASIC TEMP */
 152         0x1B216C,       /* FW api */
 153         0x1B2170,       /* drv op mode */
 154         0x13C010,       /* flash lock */
 155         0x13C014,       /* flash unlock */
 156 };
 157
 158 static const struct qlcnic_board_info qlcnic_boards[] = {
 159         { PCI_VENDOR_ID_QLOGIC,
 160           PCI_DEVICE_ID_QLOGIC_QLE834X,
 161           PCI_VENDOR_ID_QLOGIC,
 162           0x24e,
 163           "8300 Series Dual Port 10GbE Converged Network Adapter "
 164           "(TCP/IP Networking)" },
 165         { PCI_VENDOR_ID_QLOGIC,
 166           PCI_DEVICE_ID_QLOGIC_QLE834X,
 167           PCI_VENDOR_ID_QLOGIC,
 168           0x243,
 169           "8300 Series Single Port 10GbE Converged Network Adapter "
 170           "(TCP/IP Networking)" },
 171         { PCI_VENDOR_ID_QLOGIC,
 172           PCI_DEVICE_ID_QLOGIC_QLE834X,
 173           PCI_VENDOR_ID_QLOGIC,
 174           0x24a,
 175           "8300 Series Dual Port 10GbE Converged Network Adapter "
 176           "(TCP/IP Networking)" },
 177         { PCI_VENDOR_ID_QLOGIC,
 178           PCI_DEVICE_ID_QLOGIC_QLE834X,
 179           PCI_VENDOR_ID_QLOGIC,
 180           0x246,
 181           "8300 Series Dual Port 10GbE Converged Network Adapter "
 182           "(TCP/IP Networking)" },
 183         { PCI_VENDOR_ID_QLOGIC,
 184           PCI_DEVICE_ID_QLOGIC_QLE834X,
 185           PCI_VENDOR_ID_QLOGIC,
 186           0x252,
 187           "8300 Series Dual Port 10GbE Converged Network Adapter "
 188           "(TCP/IP Networking)" },
 189         { PCI_VENDOR_ID_QLOGIC,
 190           PCI_DEVICE_ID_QLOGIC_QLE834X,
 191           PCI_VENDOR_ID_QLOGIC,
 192           0x26e,
 193           "8300 Series Dual Port 10GbE Converged Network Adapter "
 194           "(TCP/IP Networking)" },
 195         { PCI_VENDOR_ID_QLOGIC,
 196           PCI_DEVICE_ID_QLOGIC_QLE834X,
 197           PCI_VENDOR_ID_QLOGIC,
 198           0x260,
 199           "8300 Series Dual Port 10GbE Converged Network Adapter "
 200           "(TCP/IP Networking)" },
 201         { PCI_VENDOR_ID_QLOGIC,
 202           PCI_DEVICE_ID_QLOGIC_QLE834X,
 203           PCI_VENDOR_ID_QLOGIC,
 204           0x266,
 205           "8300 Series Single Port 10GbE Converged Network Adapter "
 206           "(TCP/IP Networking)" },
 207         { PCI_VENDOR_ID_QLOGIC,
 208           PCI_DEVICE_ID_QLOGIC_QLE834X,
 209           PCI_VENDOR_ID_QLOGIC,
 210           0x269,
 211           "8300 Series Dual Port 10GbE Converged Network Adapter "
 212           "(TCP/IP Networking)" },
 213         { PCI_VENDOR_ID_QLOGIC,
 214           PCI_DEVICE_ID_QLOGIC_QLE834X,
 215           PCI_VENDOR_ID_QLOGIC,
 216           0x271,
 217           "8300 Series Dual Port 10GbE Converged Network Adapter "
 218           "(TCP/IP Networking)" },
 219         { PCI_VENDOR_ID_QLOGIC,
 220           PCI_DEVICE_ID_QLOGIC_QLE834X,
 221           0x0, 0x0, "8300 Series 1/10GbE Controller" },
 222         { PCI_VENDOR_ID_QLOGIC,
 223           PCI_DEVICE_ID_QLOGIC_QLE824X,
 224           PCI_VENDOR_ID_QLOGIC,
 225           0x203,
 226           "8200 Series Single Port 10GbE Converged Network Adapter"
 227           "(TCP/IP Networking)" },
 228         { PCI_VENDOR_ID_QLOGIC,
 229           PCI_DEVICE_ID_QLOGIC_QLE824X,
 230           PCI_VENDOR_ID_QLOGIC,
 231           0x207,
 232           "8200 Series Dual Port 10GbE Converged Network Adapter"
 233           "(TCP/IP Networking)" },
 234         { PCI_VENDOR_ID_QLOGIC,
 235           PCI_DEVICE_ID_QLOGIC_QLE824X,
 236           PCI_VENDOR_ID_QLOGIC,
 237           0x20b,
 238           "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter" },
 239         { PCI_VENDOR_ID_QLOGIC,
 240           PCI_DEVICE_ID_QLOGIC_QLE824X,
 241           PCI_VENDOR_ID_QLOGIC,
 242           0x20c,
 243           "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter" },
 244         { PCI_VENDOR_ID_QLOGIC,
 245           PCI_DEVICE_ID_QLOGIC_QLE824X,
 246           PCI_VENDOR_ID_QLOGIC,
 247           0x20f,
 248           "3200 Series Single Port 10Gb Intelligent Ethernet Adapter" },
 249         { PCI_VENDOR_ID_QLOGIC,
 250           PCI_DEVICE_ID_QLOGIC_QLE824X,
 251           0x103c, 0x3733,
 252           "NC523SFP 10Gb 2-port Server Adapter" },
 253         { PCI_VENDOR_ID_QLOGIC,
 254           PCI_DEVICE_ID_QLOGIC_QLE824X,
 255           0x103c, 0x3346,
 256           "CN1000Q Dual Port Converged Network Adapter" },
 257         { PCI_VENDOR_ID_QLOGIC,
 258           PCI_DEVICE_ID_QLOGIC_QLE824X,
 259           PCI_VENDOR_ID_QLOGIC,
 260           0x210,
 261           "QME8242-k 10GbE Dual Port Mezzanine Card" },
 262         { PCI_VENDOR_ID_QLOGIC,
 263           PCI_DEVICE_ID_QLOGIC_QLE824X,
 264           0x0, 0x0, "cLOM8214 1/10GbE Controller" },
 265 };
 266
 267 #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)
 268 #define QLC_MAX_SDS_RINGS       8
 269
 270 static const
 271 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
 272
 273 int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
 274 {
 275         int size = sizeof(struct qlcnic_host_sds_ring) * count;
 276
 277         recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
 278
 279         return recv_ctx->sds_rings == NULL;
 280 }
 281
 282 void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
 283 {
 284         if (recv_ctx->sds_rings != NULL)
 285                 kfree(recv_ctx->sds_rings);
 286
 287         recv_ctx->sds_rings = NULL;
 288 }
 289
 290 int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
 291 {
 292         u8 mac_addr[ETH_ALEN];
 293         struct net_device *netdev = adapter->netdev;
 294         struct pci_dev *pdev = adapter->pdev;
 295
 296         if (qlcnic_get_mac_address(adapter, mac_addr) != 0)
 297                 return -EIO;
 298
 299         memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
 300         memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
 301
 302         /* set station address */
 303
 304         if (!is_valid_ether_addr(netdev->dev_addr))
 305                 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
 306                                         netdev->dev_addr);
 307
 308         return 0;
 309 }
 310
 311 static int qlcnic_set_mac(struct net_device *netdev, void *p)
 312 {
 313         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 314         struct sockaddr *addr = p;
 315
 316         if (qlcnic_sriov_vf_check(adapter))
 317                 return -EINVAL;
 318
 319         if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
 320                 return -EOPNOTSUPP;
 321
 322         if (!is_valid_ether_addr(addr->sa_data))
 323                 return -EINVAL;
 324
 325         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 326                 netif_device_detach(netdev);
 327                 qlcnic_napi_disable(adapter);
 328         }
 329
 330         memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
 331         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 332         qlcnic_set_multi(adapter->netdev);
 333
 334         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 335                 netif_device_attach(netdev);
 336                 qlcnic_napi_enable(adapter);
 337         }
 338         return 0;
 339 }
 340
 341 static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
 342                         struct net_device *netdev, const unsigned char *addr)
 343 {
 344         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 345         int err = -EOPNOTSUPP;
 346
 347         if (!adapter->fdb_mac_learn)
 348                 return ndo_dflt_fdb_del(ndm, tb, netdev, addr);
 349
 350         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 351                 if (is_unicast_ether_addr(addr))
 352                         err = qlcnic_nic_del_mac(adapter, addr);
 353                 else if (is_multicast_ether_addr(addr))
 354                         err = dev_mc_del(netdev, addr);
 355                 else
 356                         err =  -EINVAL;
 357         }
 358         return err;
 359 }
 360
 361 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 362                         struct net_device *netdev,
 363                         const unsigned char *addr, u16 flags)
 364 {
 365         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 366         int err = 0;
 367
 368         if (!adapter->fdb_mac_learn)
 369                 return ndo_dflt_fdb_add(ndm, tb, netdev, addr, flags);
 370
 371         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 372                 pr_info("%s: FDB e-switch is not enabled\n", __func__);
 373                 return -EOPNOTSUPP;
 374         }
 375
 376         if (ether_addr_equal(addr, adapter->mac_addr))
 377                 return err;
 378
 379         if (is_unicast_ether_addr(addr))
 380                 err = qlcnic_nic_add_mac(adapter, addr, 0);
 381         else if (is_multicast_ether_addr(addr))
 382                 err = dev_mc_add_excl(netdev, addr);
 383         else
 384                 err = -EINVAL;
 385
 386         return err;
 387 }
 388
 389 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
 390                         struct net_device *netdev, int idx)
 391 {
 392         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 393
 394         if (!adapter->fdb_mac_learn)
 395                 return ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
 396
 397         if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
 398                 idx = ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
 399
 400         return idx;
 401 }
 402
 403 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
 404 {
 405         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
 406                 usleep_range(10000, 11000);
 407
 408         cancel_delayed_work_sync(&adapter->fw_work);
 409 }
 410
 411 static const struct net_device_ops qlcnic_netdev_ops = {
 412         .ndo_open          = qlcnic_open,
 413         .ndo_stop          = qlcnic_close,
 414         .ndo_start_xmit    = qlcnic_xmit_frame,
 415         .ndo_get_stats     = qlcnic_get_stats,
 416         .ndo_validate_addr = eth_validate_addr,
 417         .ndo_set_rx_mode   = qlcnic_set_multi,
 418         .ndo_set_mac_address    = qlcnic_set_mac,
 419         .ndo_change_mtu    = qlcnic_change_mtu,
 420         .ndo_fix_features  = qlcnic_fix_features,
 421         .ndo_set_features  = qlcnic_set_features,
 422         .ndo_tx_timeout    = qlcnic_tx_timeout,
 423         .ndo_vlan_rx_add_vid    = qlcnic_vlan_rx_add,
 424         .ndo_vlan_rx_kill_vid   = qlcnic_vlan_rx_del,
 425         .ndo_fdb_add            = qlcnic_fdb_add,
 426         .ndo_fdb_del            = qlcnic_fdb_del,
 427         .ndo_fdb_dump           = qlcnic_fdb_dump,
 428 #ifdef CONFIG_NET_POLL_CONTROLLER
 429         .ndo_poll_controller = qlcnic_poll_controller,
 430 #endif
 431 #ifdef CONFIG_QLCNIC_SRIOV
 432         .ndo_set_vf_mac         = qlcnic_sriov_set_vf_mac,
 433         .ndo_set_vf_tx_rate     = qlcnic_sriov_set_vf_tx_rate,
 434         .ndo_get_vf_config      = qlcnic_sriov_get_vf_config,
 435         .ndo_set_vf_vlan        = qlcnic_sriov_set_vf_vlan,
 436 #endif
 437 };
 438
 439 static const struct net_device_ops qlcnic_netdev_failed_ops = {
 440         .ndo_open          = qlcnic_open,
 441 };
 442
 443 static struct qlcnic_nic_template qlcnic_ops = {
 444         .config_bridged_mode    = qlcnic_config_bridged_mode,
 445         .config_led             = qlcnic_82xx_config_led,
 446         .start_firmware         = qlcnic_82xx_start_firmware,
 447         .request_reset          = qlcnic_82xx_dev_request_reset,
 448         .cancel_idc_work        = qlcnic_82xx_cancel_idc_work,
 449         .napi_add               = qlcnic_82xx_napi_add,
 450         .napi_del               = qlcnic_82xx_napi_del,
 451         .config_ipaddr          = qlcnic_82xx_config_ipaddr,
 452         .clear_legacy_intr      = qlcnic_82xx_clear_legacy_intr,
 453 };
 454
 455 struct qlcnic_nic_template qlcnic_vf_ops = {
 456         .config_bridged_mode    = qlcnicvf_config_bridged_mode,
 457         .config_led             = qlcnicvf_config_led,
 458         .start_firmware         = qlcnicvf_start_firmware
 459 };
 460
 461 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
 462         .read_crb                       = qlcnic_82xx_read_crb,
 463         .write_crb                      = qlcnic_82xx_write_crb,
 464         .read_reg                       = qlcnic_82xx_hw_read_wx_2M,
 465         .write_reg                      = qlcnic_82xx_hw_write_wx_2M,
 466         .get_mac_address                = qlcnic_82xx_get_mac_address,
 467         .setup_intr                     = qlcnic_82xx_setup_intr,
 468         .alloc_mbx_args                 = qlcnic_82xx_alloc_mbx_args,
 469         .mbx_cmd                        = qlcnic_82xx_issue_cmd,
 470         .get_func_no                    = qlcnic_82xx_get_func_no,
 471         .api_lock                       = qlcnic_82xx_api_lock,
 472         .api_unlock                     = qlcnic_82xx_api_unlock,
 473         .add_sysfs                      = qlcnic_82xx_add_sysfs,
 474         .remove_sysfs                   = qlcnic_82xx_remove_sysfs,
 475         .process_lb_rcv_ring_diag       = qlcnic_82xx_process_rcv_ring_diag,
 476         .create_rx_ctx                  = qlcnic_82xx_fw_cmd_create_rx_ctx,
 477         .create_tx_ctx                  = qlcnic_82xx_fw_cmd_create_tx_ctx,
 478         .del_rx_ctx                     = qlcnic_82xx_fw_cmd_del_rx_ctx,
 479         .del_tx_ctx                     = qlcnic_82xx_fw_cmd_del_tx_ctx,
 480         .setup_link_event               = qlcnic_82xx_linkevent_request,
 481         .get_nic_info                   = qlcnic_82xx_get_nic_info,
 482         .get_pci_info                   = qlcnic_82xx_get_pci_info,
 483         .set_nic_info                   = qlcnic_82xx_set_nic_info,
 484         .change_macvlan                 = qlcnic_82xx_sre_macaddr_change,
 485         .napi_enable                    = qlcnic_82xx_napi_enable,
 486         .napi_disable                   = qlcnic_82xx_napi_disable,
 487         .config_intr_coal               = qlcnic_82xx_config_intr_coalesce,
 488         .config_rss                     = qlcnic_82xx_config_rss,
 489         .config_hw_lro                  = qlcnic_82xx_config_hw_lro,
 490         .config_loopback                = qlcnic_82xx_set_lb_mode,
 491         .clear_loopback                 = qlcnic_82xx_clear_lb_mode,
 492         .config_promisc_mode            = qlcnic_82xx_nic_set_promisc,
 493         .change_l2_filter               = qlcnic_82xx_change_filter,
 494         .get_board_info                 = qlcnic_82xx_get_board_info,
 495         .free_mac_list                  = qlcnic_82xx_free_mac_list,
 496 };
 497
 498 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 499 {
 500         struct pci_dev *pdev = adapter->pdev;
 501         int err = -1, i;
 502         int max_tx_rings, tx_vector;
 503
 504         if (adapter->flags & QLCNIC_TX_INTR_SHARED) {
 505                 max_tx_rings = 0;
 506                 tx_vector = 0;
 507         } else {
 508                 max_tx_rings = adapter->max_drv_tx_rings;
 509                 tx_vector = 1;
 510         }
 511
 512         if (!adapter->msix_entries) {
 513                 adapter->msix_entries = kcalloc(num_msix,
 514                                                 sizeof(struct msix_entry),
 515                                                 GFP_KERNEL);
 516                 if (!adapter->msix_entries)
 517                         return -ENOMEM;
 518         }
 519
 520         adapter->max_sds_rings = 1;
 521         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 522
 523         if (adapter->ahw->msix_supported) {
 524  enable_msix:
 525                 for (i = 0; i < num_msix; i++)
 526                         adapter->msix_entries[i].entry = i;
 527                 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
 528                 if (err == 0) {
 529                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 530                         if (qlcnic_83xx_check(adapter)) {
 531                                 adapter->ahw->num_msix = num_msix;
 532                                 /* subtract mail box and tx ring vectors */
 533                                 adapter->max_sds_rings = num_msix -
 534                                                          max_tx_rings - 1;
 535                         } else {
 536                                 adapter->max_sds_rings = num_msix;
 537                         }
 538                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 539                         return err;
 540                 } else if (err > 0) {
 541                         dev_info(&pdev->dev,
 542                                  "Unable to allocate %d MSI-X interrupt vectors\n",
 543                                  num_msix);
 544                         if (qlcnic_83xx_check(adapter)) {
 545                                 if (err < (QLC_83XX_MINIMUM_VECTOR - tx_vector))
 546                                         return err;
 547                                 err -= (max_tx_rings + 1);
 548                                 num_msix = rounddown_pow_of_two(err);
 549                                 num_msix += (max_tx_rings + 1);
 550                         } else {
 551                                 num_msix = rounddown_pow_of_two(err);
 552                         }
 553
 554                         if (num_msix) {
 555                                 dev_info(&pdev->dev,
 556                                          "Trying to allocate %d MSI-X interrupt vectors\n",
 557                                          num_msix);
 558                                 goto enable_msix;
 559                         }
 560                 } else {
 561                         dev_info(&pdev->dev,
 562                                  "Unable to allocate %d MSI-X interrupt vectors\n",
 563                                  num_msix);
 564                 }
 565         }
 566
 567         return err;
 568 }
 569
 570 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
 571 {
 572         int err = 0;
 573         u32 offset, mask_reg;
 574         const struct qlcnic_legacy_intr_set *legacy_intrp;
 575         struct qlcnic_hardware_context *ahw = adapter->ahw;
 576         struct pci_dev *pdev = adapter->pdev;
 577
 578         if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
 579                 adapter->flags |= QLCNIC_MSI_ENABLED;
 580                 offset = msi_tgt_status[adapter->ahw->pci_func];
 581                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
 582                                                             offset);
 583                 dev_info(&pdev->dev, "using msi interrupts\n");
 584                 adapter->msix_entries[0].vector = pdev->irq;
 585                 return err;
 586         }
 587         if (qlcnic_use_msi || qlcnic_use_msi_x)
 588                 return -EOPNOTSUPP;
 589
 590         legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
 591         adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
 592         offset = legacy_intrp->tgt_status_reg;
 593         adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
 594         mask_reg = legacy_intrp->tgt_mask_reg;
 595         adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
 596         adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
 597         adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
 598         dev_info(&pdev->dev, "using legacy interrupts\n");
 599         adapter->msix_entries[0].vector = pdev->irq;
 600         return err;
 601 }
 602
 603 int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter, u8 num_intr)
 604 {
 605         int num_msix, err = 0;
 606
 607         if (!num_intr)
 608                 num_intr = QLCNIC_DEF_NUM_STS_DESC_RINGS;
 609
 610         if (adapter->ahw->msix_supported)
 611                 num_msix = rounddown_pow_of_two(min_t(int, num_online_cpus(),
 612                                                 num_intr));
 613         else
 614                 num_msix = 1;
 615
 616         err = qlcnic_enable_msix(adapter, num_msix);
 617         if (err == -ENOMEM || !err)
 618                 return err;
 619
 620         err = qlcnic_enable_msi_legacy(adapter);
 621         if (!err)
 622                 return err;
 623
 624         return -EIO;
 625 }
 626
 627 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 628 {
 629         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 630                 pci_disable_msix(adapter->pdev);
 631         if (adapter->flags & QLCNIC_MSI_ENABLED)
 632                 pci_disable_msi(adapter->pdev);
 633
 634         kfree(adapter->msix_entries);
 635         adapter->msix_entries = NULL;
 636
 637         if (adapter->ahw->intr_tbl) {
 638                 vfree(adapter->ahw->intr_tbl);
 639                 adapter->ahw->intr_tbl = NULL;
 640         }
 641 }
 642
 643 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
 644 {
 645         if (ahw->pci_base0 != NULL)
 646                 iounmap(ahw->pci_base0);
 647 }
 648
 649 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
 650 {
 651         struct qlcnic_pci_info *pci_info;
 652         int ret;
 653
 654         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 655                 switch (adapter->ahw->port_type) {
 656                 case QLCNIC_GBE:
 657                         adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_GBE_PORTS;
 658                         break;
 659                 case QLCNIC_XGBE:
 660                         adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_XG_PORTS;
 661                         break;
 662                 }
 663                 return 0;
 664         }
 665
 666         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
 667                 return 0;
 668
 669         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 670         if (!pci_info)
 671                 return -ENOMEM;
 672
 673         ret = qlcnic_get_pci_info(adapter, pci_info);
 674         kfree(pci_info);
 675         return ret;
 676 }
 677
 678 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 679 {
 680         struct qlcnic_pci_info *pci_info;
 681         int i, ret = 0, j = 0;
 682         u16 act_pci_func;
 683         u8 pfn;
 684
 685         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 686         if (!pci_info)
 687                 return -ENOMEM;
 688
 689         ret = qlcnic_get_pci_info(adapter, pci_info);
 690         if (ret)
 691                 goto err_pci_info;
 692
 693         act_pci_func = adapter->ahw->act_pci_func;
 694
 695         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
 696                                  act_pci_func, GFP_KERNEL);
 697         if (!adapter->npars) {
 698                 ret = -ENOMEM;
 699                 goto err_pci_info;
 700         }
 701
 702         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
 703                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
 704         if (!adapter->eswitch) {
 705                 ret = -ENOMEM;
 706                 goto err_npars;
 707         }
 708
 709         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 710                 pfn = pci_info[i].id;
 711
 712                 if (pfn >= QLCNIC_MAX_PCI_FUNC) {
 713                         ret = QL_STATUS_INVALID_PARAM;
 714                         goto err_eswitch;
 715                 }
 716
 717                 if (!pci_info[i].active ||
 718                     (pci_info[i].type != QLCNIC_TYPE_NIC))
 719                         continue;
 720
 721                 adapter->npars[j].pci_func = pfn;
 722                 adapter->npars[j].active = (u8)pci_info[i].active;
 723                 adapter->npars[j].type = (u8)pci_info[i].type;
 724                 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
 725                 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
 726                 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
 727                 j++;
 728         }
 729
 730         for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++) {
 731                 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
 732                 if (qlcnic_83xx_check(adapter))
 733                         qlcnic_enable_eswitch(adapter, i, 1);
 734         }
 735
 736         kfree(pci_info);
 737         return 0;
 738
 739 err_eswitch:
 740         kfree(adapter->eswitch);
 741         adapter->eswitch = NULL;
 742 err_npars:
 743         kfree(adapter->npars);
 744         adapter->npars = NULL;
 745 err_pci_info:
 746         kfree(pci_info);
 747
 748         return ret;
 749 }
 750
 751 static int
 752 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
 753 {
 754         u8 id;
 755         int i, ret = 1;
 756         u32 data = QLCNIC_MGMT_FUNC;
 757         struct qlcnic_hardware_context *ahw = adapter->ahw;
 758
 759         ret = qlcnic_api_lock(adapter);
 760         if (ret)
 761                 goto err_lock;
 762
 763         if (qlcnic_config_npars) {
 764                 for (i = 0; i < ahw->act_pci_func; i++) {
 765                         id = adapter->npars[i].pci_func;
 766                         if (id == ahw->pci_func)
 767                                 continue;
 768                         data |= (qlcnic_config_npars &
 769                                         QLC_DEV_SET_DRV(0xf, id));
 770                 }
 771         } else {
 772                 data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 773                 data = (data & ~QLC_DEV_SET_DRV(0xf, ahw->pci_func)) |
 774                         (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
 775                                          ahw->pci_func));
 776         }
 777         QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
 778         qlcnic_api_unlock(adapter);
 779 err_lock:
 780         return ret;
 781 }
 782
 783 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
 784                             const struct pci_device_id *ent)
 785 {
 786         u32 op_mode, priv_level;
 787
 788         /* Determine FW API version */
 789         adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
 790                                                            QLCNIC_FW_API);
 791
 792         /* Find PCI function number */
 793         qlcnic_get_func_no(adapter);
 794
 795         /* Determine function privilege level */
 796         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 797         if (op_mode == QLC_DEV_DRV_DEFAULT)
 798                 priv_level = QLCNIC_MGMT_FUNC;
 799         else
 800                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
 801
 802         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
 803                 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
 804                 dev_info(&adapter->pdev->dev,
 805                         "HAL Version: %d Non Privileged function\n",
 806                          adapter->ahw->fw_hal_version);
 807                 adapter->nic_ops = &qlcnic_vf_ops;
 808         } else
 809                 adapter->nic_ops = &qlcnic_ops;
 810 }
 811
 812 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
 813 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
 814 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
 815 {
 816         switch (dev_id) {
 817         case PCI_DEVICE_ID_QLOGIC_QLE824X:
 818                 *bar = QLCNIC_82XX_BAR0_LENGTH;
 819                 break;
 820         case PCI_DEVICE_ID_QLOGIC_QLE834X:
 821         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
 822                 *bar = QLCNIC_83XX_BAR0_LENGTH;
 823                 break;
 824         default:
 825                 *bar = 0;
 826         }
 827 }
 828
 829 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
 830                                 struct qlcnic_hardware_context *ahw)
 831 {
 832         u32 offset;
 833         void __iomem *mem_ptr0 = NULL;
 834         unsigned long mem_len, pci_len0 = 0, bar0_len;
 835
 836         /* remap phys address */
 837         mem_len = pci_resource_len(pdev, 0);
 838
 839         qlcnic_get_bar_length(pdev->device, &bar0_len);
 840         if (mem_len >= bar0_len) {
 841
 842                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
 843                 if (mem_ptr0 == NULL) {
 844                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
 845                         return -EIO;
 846                 }
 847                 pci_len0 = mem_len;
 848         } else {
 849                 return -EIO;
 850         }
 851
 852         dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
 853
 854         ahw->pci_base0 = mem_ptr0;
 855         ahw->pci_len0 = pci_len0;
 856         offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
 857         qlcnic_get_ioaddr(ahw, offset);
 858
 859         return 0;
 860 }
 861
 862 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
 863 {
 864         struct pci_dev *pdev = adapter->pdev;
 865         int i, found = 0;
 866
 867         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
 868                 if (qlcnic_boards[i].vendor == pdev->vendor &&
 869                         qlcnic_boards[i].device == pdev->device &&
 870                         qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
 871                         qlcnic_boards[i].sub_device == pdev->subsystem_device) {
 872                                 sprintf(name, "%pM: %s" ,
 873                                         adapter->mac_addr,
 874                                         qlcnic_boards[i].short_name);
 875                                 found = 1;
 876                                 break;
 877                 }
 878
 879         }
 880
 881         if (!found)
 882                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
 883 }
 884
 885 static void
 886 qlcnic_check_options(struct qlcnic_adapter *adapter)
 887 {
 888         int err;
 889         u32 fw_major, fw_minor, fw_build, prev_fw_version;
 890         struct pci_dev *pdev = adapter->pdev;
 891         struct qlcnic_hardware_context *ahw = adapter->ahw;
 892         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
 893
 894         prev_fw_version = adapter->fw_version;
 895
 896         fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
 897         fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
 898         fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
 899
 900         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
 901
 902         err = qlcnic_get_board_info(adapter);
 903         if (err) {
 904                 dev_err(&pdev->dev, "Error getting board config info.\n");
 905                 return;
 906         }
 907         if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
 908                 if (fw_dump->tmpl_hdr == NULL ||
 909                                 adapter->fw_version > prev_fw_version) {
 910                         if (fw_dump->tmpl_hdr)
 911                                 vfree(fw_dump->tmpl_hdr);
 912                         if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
 913                                 dev_info(&pdev->dev,
 914                                         "Supports FW dump capability\n");
 915                 }
 916         }
 917
 918         dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
 919                  QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
 920
 921         if (adapter->ahw->port_type == QLCNIC_XGBE) {
 922                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 923                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
 924                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
 925                 } else {
 926                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
 927                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
 928                 }
 929
 930                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 931                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 932
 933         } else if (adapter->ahw->port_type == QLCNIC_GBE) {
 934                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
 935                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 936                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 937                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
 938         }
 939
 940         adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
 941
 942         adapter->num_txd = MAX_CMD_DESCRIPTORS;
 943
 944         adapter->max_rds_rings = MAX_RDS_RINGS;
 945 }
 946
 947 static int
 948 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
 949 {
 950         int err;
 951         struct qlcnic_info nic_info;
 952
 953         memset(&nic_info, 0, sizeof(struct qlcnic_info));
 954         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
 955         if (err)
 956                 return err;
 957
 958         adapter->ahw->physical_port = (u8)nic_info.phys_port;
 959         adapter->ahw->switch_mode = nic_info.switch_mode;
 960         adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
 961         adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
 962         adapter->ahw->capabilities = nic_info.capabilities;
 963
 964         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
 965                 u32 temp;
 966                 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
 967                 adapter->ahw->capabilities2 = temp;
 968         }
 969         adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
 970         adapter->ahw->max_mtu = nic_info.max_mtu;
 971
 972         /* Disable NPAR for 83XX */
 973         if (qlcnic_83xx_check(adapter))
 974                 return err;
 975
 976         if (adapter->ahw->capabilities & BIT_6)
 977                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
 978         else
 979                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
 980
 981         return err;
 982 }
 983
 984 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
 985                             struct qlcnic_esw_func_cfg *esw_cfg)
 986 {
 987         if (esw_cfg->discard_tagged)
 988                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
 989         else
 990                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
 991
 992         if (esw_cfg->vlan_id) {
 993                 adapter->rx_pvid = esw_cfg->vlan_id;
 994                 adapter->tx_pvid = esw_cfg->vlan_id;
 995         } else {
 996                 adapter->rx_pvid = 0;
 997                 adapter->tx_pvid = 0;
 998         }
 999 }
1000
1001 static int
1002 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1003 {
1004         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1005         int err;
1006
1007         if (qlcnic_sriov_vf_check(adapter)) {
1008                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1009                 if (err) {
1010                         netdev_err(netdev,
1011                                    "Cannot add VLAN filter for VLAN id %d, err=%d",
1012                                    vid, err);
1013                         return err;
1014                 }
1015         }
1016
1017         set_bit(vid, adapter->vlans);
1018         return 0;
1019 }
1020
1021 static int
1022 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1023 {
1024         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1025         int err;
1026
1027         if (qlcnic_sriov_vf_check(adapter)) {
1028                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1029                 if (err) {
1030                         netdev_err(netdev,
1031                                    "Cannot delete VLAN filter for VLAN id %d, err=%d",
1032                                    vid, err);
1033                         return err;
1034                 }
1035         }
1036
1037         qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1038         clear_bit(vid, adapter->vlans);
1039         return 0;
1040 }
1041
1042 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1043                                       struct qlcnic_esw_func_cfg *esw_cfg)
1044 {
1045         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1046                                 QLCNIC_PROMISC_DISABLED);
1047
1048         if (esw_cfg->mac_anti_spoof)
1049                 adapter->flags |= QLCNIC_MACSPOOF;
1050
1051         if (!esw_cfg->mac_override)
1052                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1053
1054         if (!esw_cfg->promisc_mode)
1055                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1056
1057         qlcnic_set_netdev_features(adapter, esw_cfg);
1058 }
1059
1060 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1061 {
1062         struct qlcnic_esw_func_cfg esw_cfg;
1063
1064         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1065                 return 0;
1066
1067         esw_cfg.pci_func = adapter->ahw->pci_func;
1068         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1069                         return -EIO;
1070         qlcnic_set_vlan_config(adapter, &esw_cfg);
1071         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1072
1073         return 0;
1074 }
1075
1076 static void
1077 qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1078                 struct qlcnic_esw_func_cfg *esw_cfg)
1079 {
1080         struct net_device *netdev = adapter->netdev;
1081         unsigned long features, vlan_features;
1082
1083         if (qlcnic_83xx_check(adapter))
1084                 return;
1085
1086         features = (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
1087                     NETIF_F_IPV6_CSUM | NETIF_F_GRO);
1088         vlan_features = (NETIF_F_SG | NETIF_F_IP_CSUM |
1089                         NETIF_F_IPV6_CSUM);
1090
1091         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
1092                 features |= (NETIF_F_TSO | NETIF_F_TSO6);
1093                 vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
1094         }
1095
1096         if (netdev->features & NETIF_F_LRO)
1097                 features |= NETIF_F_LRO;
1098
1099         if (esw_cfg->offload_flags & BIT_0) {
1100                 netdev->features |= features;
1101                 adapter->rx_csum = 1;
1102                 if (!(esw_cfg->offload_flags & BIT_1)) {
1103                         netdev->features &= ~NETIF_F_TSO;
1104                         features &= ~NETIF_F_TSO;
1105                 }
1106                 if (!(esw_cfg->offload_flags & BIT_2)) {
1107                         netdev->features &= ~NETIF_F_TSO6;
1108                         features &= ~NETIF_F_TSO6;
1109                 }
1110         } else {
1111                 netdev->features &= ~features;
1112                 features &= ~features;
1113                 adapter->rx_csum = 0;
1114         }
1115
1116         netdev->vlan_features = (features & vlan_features);
1117 }
1118
1119 static int
1120 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1121 {
1122         u32 op_mode, priv_level;
1123         int err = 0;
1124
1125         err = qlcnic_initialize_nic(adapter);
1126         if (err)
1127                 return err;
1128
1129         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1130                 return 0;
1131
1132         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1133         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1134
1135         if (op_mode == QLC_DEV_DRV_DEFAULT)
1136                 priv_level = QLCNIC_MGMT_FUNC;
1137         else
1138                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1139
1140         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1141                 if (priv_level == QLCNIC_MGMT_FUNC) {
1142                         adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1143                         err = qlcnic_init_pci_info(adapter);
1144                         if (err)
1145                                 return err;
1146                         /* Set privilege level for other functions */
1147                         qlcnic_set_function_modes(adapter);
1148                         dev_info(&adapter->pdev->dev,
1149                                 "HAL Version: %d, Management function\n",
1150                                  adapter->ahw->fw_hal_version);
1151                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1152                         adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1153                         dev_info(&adapter->pdev->dev,
1154                                 "HAL Version: %d, Privileged function\n",
1155                                  adapter->ahw->fw_hal_version);
1156                 }
1157         }
1158
1159         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1160
1161         return err;
1162 }
1163
1164 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1165 {
1166         struct qlcnic_esw_func_cfg esw_cfg;
1167         struct qlcnic_npar_info *npar;
1168         u8 i;
1169
1170         if (adapter->need_fw_reset)
1171                 return 0;
1172
1173         for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1174                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1175                 esw_cfg.pci_func = adapter->npars[i].pci_func;
1176                 esw_cfg.mac_override = BIT_0;
1177                 esw_cfg.promisc_mode = BIT_0;
1178                 if (qlcnic_82xx_check(adapter)) {
1179                         esw_cfg.offload_flags = BIT_0;
1180                         if (QLCNIC_IS_TSO_CAPABLE(adapter))
1181                                 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1182                 }
1183                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1184                         return -EIO;
1185                 npar = &adapter->npars[i];
1186                 npar->pvid = esw_cfg.vlan_id;
1187                 npar->mac_override = esw_cfg.mac_override;
1188                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1189                 npar->discard_tagged = esw_cfg.discard_tagged;
1190                 npar->promisc_mode = esw_cfg.promisc_mode;
1191                 npar->offload_flags = esw_cfg.offload_flags;
1192         }
1193
1194         return 0;
1195 }
1196
1197
1198 static int
1199 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1200                         struct qlcnic_npar_info *npar, int pci_func)
1201 {
1202         struct qlcnic_esw_func_cfg esw_cfg;
1203         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1204         esw_cfg.pci_func = pci_func;
1205         esw_cfg.vlan_id = npar->pvid;
1206         esw_cfg.mac_override = npar->mac_override;
1207         esw_cfg.discard_tagged = npar->discard_tagged;
1208         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1209         esw_cfg.offload_flags = npar->offload_flags;
1210         esw_cfg.promisc_mode = npar->promisc_mode;
1211         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1212                 return -EIO;
1213
1214         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1215         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1216                 return -EIO;
1217
1218         return 0;
1219 }
1220
1221 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1222 {
1223         int i, err;
1224         struct qlcnic_npar_info *npar;
1225         struct qlcnic_info nic_info;
1226         u8 pci_func;
1227
1228         if (qlcnic_82xx_check(adapter))
1229                 if (!adapter->need_fw_reset)
1230                         return 0;
1231
1232         /* Set the NPAR config data after FW reset */
1233         for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1234                 npar = &adapter->npars[i];
1235                 pci_func = npar->pci_func;
1236                 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1237                 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1238                 if (err)
1239                         return err;
1240                 nic_info.min_tx_bw = npar->min_bw;
1241                 nic_info.max_tx_bw = npar->max_bw;
1242                 err = qlcnic_set_nic_info(adapter, &nic_info);
1243                 if (err)
1244                         return err;
1245
1246                 if (npar->enable_pm) {
1247                         err = qlcnic_config_port_mirroring(adapter,
1248                                                            npar->dest_npar, 1,
1249                                                            pci_func);
1250                         if (err)
1251                                 return err;
1252                 }
1253                 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1254                 if (err)
1255                         return err;
1256         }
1257         return 0;
1258 }
1259
1260 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1261 {
1262         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1263         u32 npar_state;
1264
1265         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1266                 return 0;
1267
1268         npar_state = QLC_SHARED_REG_RD32(adapter,
1269                                          QLCNIC_CRB_DEV_NPAR_STATE);
1270         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1271                 msleep(1000);
1272                 npar_state = QLC_SHARED_REG_RD32(adapter,
1273                                                  QLCNIC_CRB_DEV_NPAR_STATE);
1274         }
1275         if (!npar_opt_timeo) {
1276                 dev_err(&adapter->pdev->dev,
1277                         "Waiting for NPAR state to operational timeout\n");
1278                 return -EIO;
1279         }
1280         return 0;
1281 }
1282
1283 static int
1284 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1285 {
1286         int err;
1287
1288         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1289             adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1290                 return 0;
1291
1292         err = qlcnic_set_default_offload_settings(adapter);
1293         if (err)
1294                 return err;
1295
1296         err = qlcnic_reset_npar_config(adapter);
1297         if (err)
1298                 return err;
1299
1300         qlcnic_dev_set_npar_ready(adapter);
1301
1302         return err;
1303 }
1304
1305 int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1306 {
1307         int err;
1308
1309         err = qlcnic_can_start_firmware(adapter);
1310         if (err < 0)
1311                 return err;
1312         else if (!err)
1313                 goto check_fw_status;
1314
1315         if (qlcnic_load_fw_file)
1316                 qlcnic_request_firmware(adapter);
1317         else {
1318                 err = qlcnic_check_flash_fw_ver(adapter);
1319                 if (err)
1320                         goto err_out;
1321
1322                 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1323         }
1324
1325         err = qlcnic_need_fw_reset(adapter);
1326         if (err == 0)
1327                 goto check_fw_status;
1328
1329         err = qlcnic_pinit_from_rom(adapter);
1330         if (err)
1331                 goto err_out;
1332
1333         err = qlcnic_load_firmware(adapter);
1334         if (err)
1335                 goto err_out;
1336
1337         qlcnic_release_firmware(adapter);
1338         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1339
1340 check_fw_status:
1341         err = qlcnic_check_fw_status(adapter);
1342         if (err)
1343                 goto err_out;
1344
1345         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1346         qlcnic_idc_debug_info(adapter, 1);
1347         err = qlcnic_check_eswitch_mode(adapter);
1348         if (err) {
1349                 dev_err(&adapter->pdev->dev,
1350                         "Memory allocation failed for eswitch\n");
1351                 goto err_out;
1352         }
1353         err = qlcnic_set_mgmt_operations(adapter);
1354         if (err)
1355                 goto err_out;
1356
1357         qlcnic_check_options(adapter);
1358         adapter->need_fw_reset = 0;
1359
1360         qlcnic_release_firmware(adapter);
1361         return 0;
1362
1363 err_out:
1364         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1365         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1366
1367         qlcnic_release_firmware(adapter);
1368         return err;
1369 }
1370
1371 static int
1372 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1373 {
1374         irq_handler_t handler;
1375         struct qlcnic_host_sds_ring *sds_ring;
1376         struct qlcnic_host_tx_ring *tx_ring;
1377         int err, ring, num_sds_rings;
1378
1379         unsigned long flags = 0;
1380         struct net_device *netdev = adapter->netdev;
1381         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1382
1383         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1384                 if (qlcnic_82xx_check(adapter))
1385                         handler = qlcnic_tmp_intr;
1386                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1387                         flags |= IRQF_SHARED;
1388
1389         } else {
1390                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1391                         handler = qlcnic_msix_intr;
1392                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1393                         handler = qlcnic_msi_intr;
1394                 else {
1395                         flags |= IRQF_SHARED;
1396                         if (qlcnic_82xx_check(adapter))
1397                                 handler = qlcnic_intr;
1398                         else
1399                                 handler = qlcnic_83xx_intr;
1400                 }
1401         }
1402         adapter->irq = netdev->irq;
1403
1404         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1405                 if (qlcnic_82xx_check(adapter) ||
1406                     (qlcnic_83xx_check(adapter) &&
1407                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1408                         num_sds_rings = adapter->max_sds_rings;
1409                         for (ring = 0; ring < num_sds_rings; ring++) {
1410                                 sds_ring = &recv_ctx->sds_rings[ring];
1411                                 if (qlcnic_82xx_check(adapter) &&
1412                                     (ring == (num_sds_rings - 1)))
1413                                         snprintf(sds_ring->name,
1414                                                  sizeof(sds_ring->name),
1415                                                  "qlcnic-%s[Tx0+Rx%d]",
1416                                                  netdev->name, ring);
1417                                 else
1418                                         snprintf(sds_ring->name,
1419                                                  sizeof(sds_ring->name),
1420                                                  "qlcnic-%s[Rx%d]",
1421                                                  netdev->name, ring);
1422                                 err = request_irq(sds_ring->irq, handler, flags,
1423                                                   sds_ring->name, sds_ring);
1424                                 if (err)
1425                                         return err;
1426                         }
1427                 }
1428                 if (qlcnic_83xx_check(adapter) &&
1429                     (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1430                     !(adapter->flags & QLCNIC_TX_INTR_SHARED)) {
1431                         handler = qlcnic_msix_tx_intr;
1432                         for (ring = 0; ring < adapter->max_drv_tx_rings;
1433                              ring++) {
1434                                 tx_ring = &adapter->tx_ring[ring];
1435                                 snprintf(tx_ring->name, sizeof(tx_ring->name),
1436                                          "qlcnic-%s[Tx%d]", netdev->name, ring);
1437                                 err = request_irq(tx_ring->irq, handler, flags,
1438                                                   tx_ring->name, tx_ring);
1439                                 if (err)
1440                                         return err;
1441                         }
1442                 }
1443         }
1444         return 0;
1445 }
1446
1447 static void
1448 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1449 {
1450         int ring;
1451         struct qlcnic_host_sds_ring *sds_ring;
1452         struct qlcnic_host_tx_ring *tx_ring;
1453
1454         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1455
1456         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1457                 if (qlcnic_82xx_check(adapter) ||
1458                     (qlcnic_83xx_check(adapter) &&
1459                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1460                         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1461                                 sds_ring = &recv_ctx->sds_rings[ring];
1462                                 free_irq(sds_ring->irq, sds_ring);
1463                         }
1464                 }
1465                 if (qlcnic_83xx_check(adapter) &&
1466                     !(adapter->flags & QLCNIC_TX_INTR_SHARED)) {
1467                         for (ring = 0; ring < adapter->max_drv_tx_rings;
1468                              ring++) {
1469                                 tx_ring = &adapter->tx_ring[ring];
1470                                 if (tx_ring->irq)
1471                                         free_irq(tx_ring->irq, tx_ring);
1472                         }
1473                 }
1474         }
1475 }
1476
1477 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1478 {
1479         u32 capab = 0;
1480
1481         if (qlcnic_82xx_check(adapter)) {
1482                 if (adapter->ahw->capabilities2 &
1483                     QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1484                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1485         } else {
1486                 capab = adapter->ahw->capabilities;
1487                 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1488                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1489         }
1490 }
1491
1492 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1493 {
1494         int ring;
1495         struct qlcnic_host_rds_ring *rds_ring;
1496
1497         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1498                 return -EIO;
1499
1500         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1501                 return 0;
1502         if (qlcnic_set_eswitch_port_config(adapter))
1503                 return -EIO;
1504         qlcnic_get_lro_mss_capability(adapter);
1505
1506         if (qlcnic_fw_create_ctx(adapter))
1507                 return -EIO;
1508
1509         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1510                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1511                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1512         }
1513
1514         qlcnic_set_multi(netdev);
1515         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1516
1517         adapter->ahw->linkup = 0;
1518
1519         if (adapter->max_sds_rings > 1)
1520                 qlcnic_config_rss(adapter, 1);
1521
1522         qlcnic_config_intr_coalesce(adapter);
1523
1524         if (netdev->features & NETIF_F_LRO)
1525                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1526
1527         qlcnic_napi_enable(adapter);
1528
1529         qlcnic_linkevent_request(adapter, 1);
1530
1531         adapter->ahw->reset_context = 0;
1532         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1533         return 0;
1534 }
1535
1536 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1537 {
1538         int err = 0;
1539
1540         rtnl_lock();
1541         if (netif_running(netdev))
1542                 err = __qlcnic_up(adapter, netdev);
1543         rtnl_unlock();
1544
1545         return err;
1546 }
1547
1548 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1549 {
1550         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1551                 return;
1552
1553         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1554                 return;
1555
1556         if (qlcnic_sriov_vf_check(adapter))
1557                 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1558         smp_mb();
1559         spin_lock(&adapter->tx_clean_lock);
1560         netif_carrier_off(netdev);
1561         adapter->ahw->linkup = 0;
1562         netif_tx_disable(netdev);
1563
1564         qlcnic_free_mac_list(adapter);
1565
1566         if (adapter->fhash.fnum)
1567                 qlcnic_delete_lb_filters(adapter);
1568
1569         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1570
1571         qlcnic_napi_disable(adapter);
1572
1573         qlcnic_fw_destroy_ctx(adapter);
1574         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1575
1576         qlcnic_reset_rx_buffers_list(adapter);
1577         qlcnic_release_tx_buffers(adapter);
1578         spin_unlock(&adapter->tx_clean_lock);
1579 }
1580
1581 /* Usage: During suspend and firmware recovery module */
1582
1583 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1584 {
1585         rtnl_lock();
1586         if (netif_running(netdev))
1587                 __qlcnic_down(adapter, netdev);
1588         rtnl_unlock();
1589
1590 }
1591
1592 int
1593 qlcnic_attach(struct qlcnic_adapter *adapter)
1594 {
1595         struct net_device *netdev = adapter->netdev;
1596         struct pci_dev *pdev = adapter->pdev;
1597         int err;
1598
1599         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1600                 return 0;
1601
1602         err = qlcnic_napi_add(adapter, netdev);
1603         if (err)
1604                 return err;
1605
1606         err = qlcnic_alloc_sw_resources(adapter);
1607         if (err) {
1608                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1609                 goto err_out_napi_del;
1610         }
1611
1612         err = qlcnic_alloc_hw_resources(adapter);
1613         if (err) {
1614                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1615                 goto err_out_free_sw;
1616         }
1617
1618         err = qlcnic_request_irq(adapter);
1619         if (err) {
1620                 dev_err(&pdev->dev, "failed to setup interrupt\n");
1621                 goto err_out_free_hw;
1622         }
1623
1624         qlcnic_create_sysfs_entries(adapter);
1625
1626         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1627         return 0;
1628
1629 err_out_free_hw:
1630         qlcnic_free_hw_resources(adapter);
1631 err_out_free_sw:
1632         qlcnic_free_sw_resources(adapter);
1633 err_out_napi_del:
1634         qlcnic_napi_del(adapter);
1635         return err;
1636 }
1637
1638 void qlcnic_detach(struct qlcnic_adapter *adapter)
1639 {
1640         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1641                 return;
1642
1643         qlcnic_remove_sysfs_entries(adapter);
1644
1645         qlcnic_free_hw_resources(adapter);
1646         qlcnic_release_rx_buffers(adapter);
1647         qlcnic_free_irq(adapter);
1648         qlcnic_napi_del(adapter);
1649         qlcnic_free_sw_resources(adapter);
1650
1651         adapter->is_up = 0;
1652 }
1653
1654 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1655 {
1656         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1657         struct qlcnic_host_sds_ring *sds_ring;
1658         int ring;
1659
1660         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1661         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1662                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1663                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1664                         qlcnic_disable_int(sds_ring);
1665                 }
1666         }
1667
1668         qlcnic_fw_destroy_ctx(adapter);
1669
1670         qlcnic_detach(adapter);
1671
1672         adapter->ahw->diag_test = 0;
1673         adapter->max_sds_rings = max_sds_rings;
1674
1675         if (qlcnic_attach(adapter))
1676                 goto out;
1677
1678         if (netif_running(netdev))
1679                 __qlcnic_up(adapter, netdev);
1680 out:
1681         netif_device_attach(netdev);
1682 }
1683
1684 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
1685 {
1686         struct qlcnic_hardware_context *ahw = adapter->ahw;
1687         int err = 0;
1688
1689         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
1690                                 GFP_KERNEL);
1691         if (!adapter->recv_ctx) {
1692                 err = -ENOMEM;
1693                 goto err_out;
1694         }
1695         /* Initialize interrupt coalesce parameters */
1696         ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1697         ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1698         ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1699         ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1700         if (qlcnic_83xx_check(adapter)) {
1701                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1702                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1703         }
1704         /* clear stats */
1705         memset(&adapter->stats, 0, sizeof(adapter->stats));
1706 err_out:
1707         return err;
1708 }
1709
1710 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
1711 {
1712         kfree(adapter->recv_ctx);
1713         adapter->recv_ctx = NULL;
1714
1715         if (adapter->ahw->fw_dump.tmpl_hdr) {
1716                 vfree(adapter->ahw->fw_dump.tmpl_hdr);
1717                 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1718         }
1719
1720         kfree(adapter->ahw->reset.buff);
1721         adapter->ahw->fw_dump.tmpl_hdr = NULL;
1722 }
1723
1724 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1725 {
1726         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1727         struct qlcnic_host_sds_ring *sds_ring;
1728         struct qlcnic_host_rds_ring *rds_ring;
1729         int ring;
1730         int ret;
1731
1732         netif_device_detach(netdev);
1733
1734         if (netif_running(netdev))
1735                 __qlcnic_down(adapter, netdev);
1736
1737         qlcnic_detach(adapter);
1738
1739         adapter->max_sds_rings = 1;
1740         adapter->ahw->diag_test = test;
1741         adapter->ahw->linkup = 0;
1742
1743         ret = qlcnic_attach(adapter);
1744         if (ret) {
1745                 netif_device_attach(netdev);
1746                 return ret;
1747         }
1748
1749         ret = qlcnic_fw_create_ctx(adapter);
1750         if (ret) {
1751                 qlcnic_detach(adapter);
1752                 netif_device_attach(netdev);
1753                 return ret;
1754         }
1755
1756         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1757                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1758                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1759         }
1760
1761         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1762                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1763                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1764                         qlcnic_enable_int(sds_ring);
1765                 }
1766         }
1767
1768         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
1769                 adapter->ahw->loopback_state = 0;
1770                 qlcnic_linkevent_request(adapter, 1);
1771         }
1772
1773         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1774
1775         return 0;
1776 }
1777
1778 /* Reset context in hardware only */
1779 static int
1780 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1781 {
1782         struct net_device *netdev = adapter->netdev;
1783
1784         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1785                 return -EBUSY;
1786
1787         netif_device_detach(netdev);
1788
1789         qlcnic_down(adapter, netdev);
1790
1791         qlcnic_up(adapter, netdev);
1792
1793         netif_device_attach(netdev);
1794
1795         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1796         dev_err(&adapter->pdev->dev, "%s:\n", __func__);
1797         return 0;
1798 }
1799
1800 int
1801 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1802 {
1803         int err = 0;
1804         struct net_device *netdev = adapter->netdev;
1805
1806         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1807                 return -EBUSY;
1808
1809         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1810
1811                 netif_device_detach(netdev);
1812
1813                 if (netif_running(netdev))
1814                         __qlcnic_down(adapter, netdev);
1815
1816                 qlcnic_detach(adapter);
1817
1818                 if (netif_running(netdev)) {
1819                         err = qlcnic_attach(adapter);
1820                         if (!err) {
1821                                 __qlcnic_up(adapter, netdev);
1822                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1823                         }
1824                 }
1825
1826                 netif_device_attach(netdev);
1827         }
1828
1829         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1830         return err;
1831 }
1832
1833 int
1834 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
1835                     int pci_using_dac)
1836 {
1837         int err;
1838         struct pci_dev *pdev = adapter->pdev;
1839
1840         adapter->rx_csum = 1;
1841         adapter->ahw->mc_enabled = 0;
1842         adapter->ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
1843
1844         netdev->netdev_ops         = &qlcnic_netdev_ops;
1845         netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
1846
1847         qlcnic_change_mtu(netdev, netdev->mtu);
1848
1849         if (qlcnic_sriov_vf_check(adapter))
1850                 SET_ETHTOOL_OPS(netdev, &qlcnic_sriov_vf_ethtool_ops);
1851         else
1852                 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1853
1854         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
1855                              NETIF_F_IPV6_CSUM | NETIF_F_GRO |
1856                              NETIF_F_HW_VLAN_CTAG_RX);
1857         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1858                                   NETIF_F_IPV6_CSUM);
1859
1860         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
1861                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
1862                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
1863         }
1864
1865         if (pci_using_dac) {
1866                 netdev->features |= NETIF_F_HIGHDMA;
1867                 netdev->vlan_features |= NETIF_F_HIGHDMA;
1868         }
1869
1870         if (qlcnic_vlan_tx_check(adapter))
1871                 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
1872
1873         if (qlcnic_sriov_vf_check(adapter))
1874                 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
1875
1876         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1877                 netdev->features |= NETIF_F_LRO;
1878
1879         netdev->hw_features = netdev->features;
1880         netdev->irq = adapter->msix_entries[0].vector;
1881
1882         err = register_netdev(netdev);
1883         if (err) {
1884                 dev_err(&pdev->dev, "failed to register net device\n");
1885                 return err;
1886         }
1887
1888         return 0;
1889 }
1890
1891 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
1892 {
1893         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1894                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1895                 *pci_using_dac = 1;
1896         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1897                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1898                 *pci_using_dac = 0;
1899         else {
1900                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1901                 return -EIO;
1902         }
1903
1904         return 0;
1905 }
1906
1907 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
1908 {
1909         int ring;
1910         struct qlcnic_host_tx_ring *tx_ring;
1911
1912         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1913                 tx_ring = &adapter->tx_ring[ring];
1914                 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
1915                         vfree(tx_ring->cmd_buf_arr);
1916                         tx_ring->cmd_buf_arr = NULL;
1917                 }
1918         }
1919         if (adapter->tx_ring != NULL)
1920                 kfree(adapter->tx_ring);
1921 }
1922
1923 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
1924                           struct net_device *netdev)
1925 {
1926         int ring, vector, index;
1927         struct qlcnic_host_tx_ring *tx_ring;
1928         struct qlcnic_cmd_buffer *cmd_buf_arr;
1929
1930         tx_ring = kcalloc(adapter->max_drv_tx_rings,
1931                           sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
1932         if (tx_ring == NULL)
1933                 return -ENOMEM;
1934
1935         adapter->tx_ring = tx_ring;
1936
1937         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1938                 tx_ring = &adapter->tx_ring[ring];
1939                 tx_ring->num_desc = adapter->num_txd;
1940                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
1941                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
1942                 if (cmd_buf_arr == NULL) {
1943                         qlcnic_free_tx_rings(adapter);
1944                         return -ENOMEM;
1945                 }
1946                 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
1947                 tx_ring->cmd_buf_arr = cmd_buf_arr;
1948         }
1949
1950         if (qlcnic_83xx_check(adapter)) {
1951                 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1952                         tx_ring = &adapter->tx_ring[ring];
1953                         tx_ring->adapter = adapter;
1954                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
1955                                 index = adapter->max_sds_rings + ring;
1956                                 vector = adapter->msix_entries[index].vector;
1957                                 tx_ring->irq = vector;
1958                         }
1959                 }
1960         }
1961         return 0;
1962 }
1963
1964 static int
1965 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1966 {
1967         struct net_device *netdev = NULL;
1968         struct qlcnic_adapter *adapter = NULL;
1969         struct qlcnic_hardware_context *ahw;
1970         int err, pci_using_dac = -1;
1971         u32 capab2;
1972         char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
1973
1974         if (pdev->is_virtfn)
1975                 return -ENODEV;
1976
1977         err = pci_enable_device(pdev);
1978         if (err)
1979                 return err;
1980
1981         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1982                 err = -ENODEV;
1983                 goto err_out_disable_pdev;
1984         }
1985
1986         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
1987         if (err)
1988                 goto err_out_disable_pdev;
1989
1990         err = pci_request_regions(pdev, qlcnic_driver_name);
1991         if (err)
1992                 goto err_out_disable_pdev;
1993
1994         pci_set_master(pdev);
1995         pci_enable_pcie_error_reporting(pdev);
1996
1997         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
1998         if (!ahw)
1999                 goto err_out_free_res;
2000
2001         switch (ent->device) {
2002         case PCI_DEVICE_ID_QLOGIC_QLE824X:
2003                 ahw->hw_ops = &qlcnic_hw_ops;
2004                 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2005                 break;
2006         case PCI_DEVICE_ID_QLOGIC_QLE834X:
2007                 qlcnic_83xx_register_map(ahw);
2008                 break;
2009         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2010                 qlcnic_sriov_vf_register_map(ahw);
2011                 break;
2012         default:
2013                 goto err_out_free_hw_res;
2014         }
2015
2016         err = qlcnic_setup_pci_map(pdev, ahw);
2017         if (err)
2018                 goto err_out_free_hw_res;
2019
2020         netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
2021         if (!netdev) {
2022                 err = -ENOMEM;
2023                 goto err_out_iounmap;
2024         }
2025
2026         SET_NETDEV_DEV(netdev, &pdev->dev);
2027
2028         adapter = netdev_priv(netdev);
2029         adapter->netdev  = netdev;
2030         adapter->pdev    = pdev;
2031         adapter->ahw = ahw;
2032
2033         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2034         if (adapter->qlcnic_wq == NULL) {
2035                 dev_err(&pdev->dev, "Failed to create workqueue\n");
2036                 goto err_out_free_netdev;
2037         }
2038
2039         err = qlcnic_alloc_adapter_resources(adapter);
2040         if (err)
2041                 goto err_out_free_netdev;
2042
2043         adapter->dev_rst_time = jiffies;
2044         adapter->ahw->revision_id = pdev->revision;
2045         if (qlcnic_mac_learn == FDB_MAC_LEARN)
2046                 adapter->fdb_mac_learn = true;
2047         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2048                 adapter->drv_mac_learn = true;
2049         adapter->max_drv_tx_rings = 1;
2050
2051         rwlock_init(&adapter->ahw->crb_lock);
2052         mutex_init(&adapter->ahw->mem_lock);
2053
2054         spin_lock_init(&adapter->tx_clean_lock);
2055         INIT_LIST_HEAD(&adapter->mac_list);
2056
2057         if (qlcnic_82xx_check(adapter)) {
2058                 qlcnic_check_vf(adapter, ent);
2059                 adapter->portnum = adapter->ahw->pci_func;
2060                 err = qlcnic_start_firmware(adapter);
2061                 if (err) {
2062                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
2063                         goto err_out_free_hw;
2064                 }
2065
2066                 err = qlcnic_setup_idc_param(adapter);
2067                 if (err)
2068                         goto err_out_free_hw;
2069
2070                 adapter->flags |= QLCNIC_NEED_FLR;
2071         } else if (qlcnic_83xx_check(adapter)) {
2072                 qlcnic_83xx_check_vf(adapter, ent);
2073                 adapter->portnum = adapter->ahw->pci_func;
2074                 err = qlcnic_83xx_init(adapter, pci_using_dac);
2075                 if (err) {
2076                         dev_err(&pdev->dev, "%s: failed\n", __func__);
2077                         goto err_out_free_hw;
2078                 }
2079                 if (qlcnic_sriov_vf_check(adapter))
2080                         return 0;
2081         } else {
2082                 dev_err(&pdev->dev,
2083                         "%s: failed. Please Reboot\n", __func__);
2084                 goto err_out_free_hw;
2085         }
2086
2087         if (qlcnic_read_mac_addr(adapter))
2088                 dev_warn(&pdev->dev, "failed to read mac addr\n");
2089
2090         if (adapter->portnum == 0) {
2091                 qlcnic_get_board_name(adapter, board_name);
2092
2093                 pr_info("%s: %s Board Chip rev 0x%x\n",
2094                         module_name(THIS_MODULE),
2095                         board_name, adapter->ahw->revision_id);
2096         }
2097
2098         if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2099             !!qlcnic_use_msi)
2100                 dev_warn(&pdev->dev,
2101                          "83xx adapter do not support MSI interrupts\n");
2102
2103         err = qlcnic_setup_intr(adapter, 0);
2104         if (err) {
2105                 dev_err(&pdev->dev, "Failed to setup interrupt\n");
2106                 goto err_out_disable_msi;
2107         }
2108
2109         if (qlcnic_83xx_check(adapter)) {
2110                 err = qlcnic_83xx_setup_mbx_intr(adapter);
2111                 if (err)
2112                         goto err_out_disable_msi;
2113         }
2114
2115         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2116         if (err)
2117                 goto err_out_disable_mbx_intr;
2118
2119         if (qlcnic_82xx_check(adapter)) {
2120                 if (ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
2121                         capab2 = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
2122                         if (capab2 & QLCNIC_FW_CAPABILITY_2_OCBB)
2123                                 qlcnic_fw_cmd_set_drv_version(adapter);
2124                 }
2125         }
2126
2127         pci_set_drvdata(pdev, adapter);
2128
2129         if (qlcnic_82xx_check(adapter))
2130                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2131                                      FW_POLL_DELAY);
2132
2133         switch (adapter->ahw->port_type) {
2134         case QLCNIC_GBE:
2135                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2136                                 adapter->netdev->name);
2137                 break;
2138         case QLCNIC_XGBE:
2139                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2140                                 adapter->netdev->name);
2141                 break;
2142         }
2143
2144         if (qlcnic_get_act_pci_func(adapter))
2145                 goto err_out_disable_mbx_intr;
2146
2147         if (adapter->drv_mac_learn)
2148                 qlcnic_alloc_lb_filters_mem(adapter);
2149
2150         qlcnic_add_sysfs(adapter);
2151
2152         return 0;
2153
2154 err_out_disable_mbx_intr:
2155         if (qlcnic_83xx_check(adapter))
2156                 qlcnic_83xx_free_mbx_intr(adapter);
2157
2158 err_out_disable_msi:
2159         qlcnic_teardown_intr(adapter);
2160         qlcnic_cancel_idc_work(adapter);
2161         qlcnic_clr_all_drv_state(adapter, 0);
2162
2163 err_out_free_hw:
2164         qlcnic_free_adapter_resources(adapter);
2165
2166 err_out_free_netdev:
2167         free_netdev(netdev);
2168
2169 err_out_iounmap:
2170         qlcnic_cleanup_pci_map(ahw);
2171
2172 err_out_free_hw_res:
2173         kfree(ahw);
2174
2175 err_out_free_res:
2176         pci_release_regions(pdev);
2177
2178 err_out_disable_pdev:
2179         pci_set_drvdata(pdev, NULL);
2180         pci_disable_device(pdev);
2181         return err;
2182 }
2183
2184 static void qlcnic_remove(struct pci_dev *pdev)
2185 {
2186         struct qlcnic_adapter *adapter;
2187         struct net_device *netdev;
2188         struct qlcnic_hardware_context *ahw;
2189
2190         adapter = pci_get_drvdata(pdev);
2191         if (adapter == NULL)
2192                 return;
2193
2194         netdev = adapter->netdev;
2195         qlcnic_sriov_pf_disable(adapter);
2196
2197         qlcnic_cancel_idc_work(adapter);
2198         ahw = adapter->ahw;
2199
2200         unregister_netdev(netdev);
2201         qlcnic_sriov_cleanup(adapter);
2202
2203         if (qlcnic_83xx_check(adapter)) {
2204                 qlcnic_83xx_free_mbx_intr(adapter);
2205                 qlcnic_83xx_register_nic_idc_func(adapter, 0);
2206                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2207         }
2208
2209         qlcnic_detach(adapter);
2210
2211         if (adapter->npars != NULL)
2212                 kfree(adapter->npars);
2213         if (adapter->eswitch != NULL)
2214                 kfree(adapter->eswitch);
2215
2216         if (qlcnic_82xx_check(adapter))
2217                 qlcnic_clr_all_drv_state(adapter, 0);
2218
2219         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2220
2221         qlcnic_free_lb_filters_mem(adapter);
2222
2223         qlcnic_teardown_intr(adapter);
2224
2225         qlcnic_remove_sysfs(adapter);
2226
2227         qlcnic_cleanup_pci_map(adapter->ahw);
2228
2229         qlcnic_release_firmware(adapter);
2230
2231         pci_disable_pcie_error_reporting(pdev);
2232         pci_release_regions(pdev);
2233         pci_disable_device(pdev);
2234         pci_set_drvdata(pdev, NULL);
2235
2236         if (adapter->qlcnic_wq) {
2237                 destroy_workqueue(adapter->qlcnic_wq);
2238                 adapter->qlcnic_wq = NULL;
2239         }
2240         qlcnic_free_adapter_resources(adapter);
2241         kfree(ahw);
2242         free_netdev(netdev);
2243 }
2244 static int __qlcnic_shutdown(struct pci_dev *pdev)
2245 {
2246         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2247         struct net_device *netdev = adapter->netdev;
2248         int retval;
2249
2250         netif_device_detach(netdev);
2251
2252         qlcnic_cancel_idc_work(adapter);
2253
2254         if (netif_running(netdev))
2255                 qlcnic_down(adapter, netdev);
2256
2257         qlcnic_sriov_cleanup(adapter);
2258         if (qlcnic_82xx_check(adapter))
2259                 qlcnic_clr_all_drv_state(adapter, 0);
2260
2261         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2262
2263         retval = pci_save_state(pdev);
2264         if (retval)
2265                 return retval;
2266         if (qlcnic_82xx_check(adapter)) {
2267                 if (qlcnic_wol_supported(adapter)) {
2268                         pci_enable_wake(pdev, PCI_D3cold, 1);
2269                         pci_enable_wake(pdev, PCI_D3hot, 1);
2270                 }
2271         }
2272
2273         return 0;
2274 }
2275
2276 static void qlcnic_shutdown(struct pci_dev *pdev)
2277 {
2278         if (__qlcnic_shutdown(pdev))
2279                 return;
2280
2281         pci_disable_device(pdev);
2282 }
2283
2284 #ifdef CONFIG_PM
2285 static int
2286 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2287 {
2288         int retval;
2289
2290         retval = __qlcnic_shutdown(pdev);
2291         if (retval)
2292                 return retval;
2293
2294         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2295         return 0;
2296 }
2297
2298 static int
2299 qlcnic_resume(struct pci_dev *pdev)
2300 {
2301         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2302         struct net_device *netdev = adapter->netdev;
2303         int err;
2304
2305         err = pci_enable_device(pdev);
2306         if (err)
2307                 return err;
2308
2309         pci_set_power_state(pdev, PCI_D0);
2310         pci_set_master(pdev);
2311         pci_restore_state(pdev);
2312
2313         err = qlcnic_start_firmware(adapter);
2314         if (err) {
2315                 dev_err(&pdev->dev, "failed to start firmware\n");
2316                 return err;
2317         }
2318
2319         if (netif_running(netdev)) {
2320                 err = qlcnic_up(adapter, netdev);
2321                 if (err)
2322                         goto done;
2323
2324                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2325         }
2326 done:
2327         netif_device_attach(netdev);
2328         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
2329         return 0;
2330 }
2331 #endif
2332
2333 static int qlcnic_open(struct net_device *netdev)
2334 {
2335         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2336         int err;
2337
2338         netif_carrier_off(netdev);
2339
2340         err = qlcnic_attach(adapter);
2341         if (err)
2342                 return err;
2343
2344         err = __qlcnic_up(adapter, netdev);
2345         if (err)
2346                 goto err_out;
2347
2348         netif_start_queue(netdev);
2349
2350         return 0;
2351
2352 err_out:
2353         qlcnic_detach(adapter);
2354         return err;
2355 }
2356
2357 /*
2358  * qlcnic_close - Disables a network interface entry point
2359  */
2360 static int qlcnic_close(struct net_device *netdev)
2361 {
2362         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2363
2364         __qlcnic_down(adapter, netdev);
2365
2366         return 0;
2367 }
2368
2369 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2370 {
2371         void *head;
2372         int i;
2373         struct net_device *netdev = adapter->netdev;
2374         u32 filter_size = 0;
2375         u16 act_pci_func = 0;
2376
2377         if (adapter->fhash.fmax && adapter->fhash.fhead)
2378                 return;
2379
2380         act_pci_func = adapter->ahw->act_pci_func;
2381         spin_lock_init(&adapter->mac_learn_lock);
2382         spin_lock_init(&adapter->rx_mac_learn_lock);
2383
2384         if (qlcnic_82xx_check(adapter)) {
2385                 filter_size = QLCNIC_LB_MAX_FILTERS;
2386                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2387         } else {
2388                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2389                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2390         }
2391
2392         head = kcalloc(adapter->fhash.fbucket_size,
2393                        sizeof(struct hlist_head), GFP_ATOMIC);
2394
2395         if (!head)
2396                 return;
2397
2398         adapter->fhash.fmax = (filter_size / act_pci_func);
2399         adapter->fhash.fhead = head;
2400
2401         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2402                     act_pci_func, adapter->fhash.fmax);
2403
2404         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2405                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2406
2407         adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2408
2409         head = kcalloc(adapter->rx_fhash.fbucket_size,
2410                        sizeof(struct hlist_head), GFP_ATOMIC);
2411
2412         if (!head)
2413                 return;
2414
2415         adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2416         adapter->rx_fhash.fhead = head;
2417
2418         for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2419                 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2420 }
2421
2422 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2423 {
2424         if (adapter->fhash.fmax && adapter->fhash.fhead)
2425                 kfree(adapter->fhash.fhead);
2426
2427         adapter->fhash.fhead = NULL;
2428         adapter->fhash.fmax = 0;
2429
2430         if (adapter->rx_fhash.fmax && adapter->rx_fhash.fhead)
2431                 kfree(adapter->rx_fhash.fhead);
2432
2433         adapter->rx_fhash.fmax = 0;
2434         adapter->rx_fhash.fhead = NULL;
2435 }
2436
2437 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2438 {
2439         struct net_device *netdev = adapter->netdev;
2440         u32 temp_state, temp_val, temp = 0;
2441         int rv = 0;
2442
2443         if (qlcnic_83xx_check(adapter))
2444                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2445
2446         if (qlcnic_82xx_check(adapter))
2447                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2448
2449         temp_state = qlcnic_get_temp_state(temp);
2450         temp_val = qlcnic_get_temp_val(temp);
2451
2452         if (temp_state == QLCNIC_TEMP_PANIC) {
2453                 dev_err(&netdev->dev,
2454                        "Device temperature %d degrees C exceeds"
2455                        " maximum allowed. Hardware has been shut down.\n",
2456                        temp_val);
2457                 rv = 1;
2458         } else if (temp_state == QLCNIC_TEMP_WARN) {
2459                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2460                         dev_err(&netdev->dev,
2461                                "Device temperature %d degrees C "
2462                                "exceeds operating range."
2463                                " Immediate action needed.\n",
2464                                temp_val);
2465                 }
2466         } else {
2467                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2468                         dev_info(&netdev->dev,
2469                                "Device temperature is now %d degrees C"
2470                                " in normal range.\n", temp_val);
2471                 }
2472         }
2473         adapter->ahw->temp = temp_state;
2474         return rv;
2475 }
2476
2477 static void qlcnic_tx_timeout(struct net_device *netdev)
2478 {
2479         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2480
2481         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2482                 return;
2483
2484         dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2485
2486         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
2487                 adapter->need_fw_reset = 1;
2488         else
2489                 adapter->ahw->reset_context = 1;
2490 }
2491
2492 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2493 {
2494         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2495         struct net_device_stats *stats = &netdev->stats;
2496
2497         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2498         stats->tx_packets = adapter->stats.xmitfinished;
2499         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2500         stats->tx_bytes = adapter->stats.txbytes;
2501         stats->rx_dropped = adapter->stats.rxdropped;
2502         stats->tx_dropped = adapter->stats.txdropped;
2503
2504         return stats;
2505 }
2506
2507 irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
2508 {
2509         u32 status;
2510
2511         status = readl(adapter->isr_int_vec);
2512
2513         if (!(status & adapter->ahw->int_vec_bit))
2514                 return IRQ_NONE;
2515
2516         /* check interrupt state machine, to be sure */
2517         status = readl(adapter->crb_int_state_reg);
2518         if (!ISR_LEGACY_INT_TRIGGERED(status))
2519                 return IRQ_NONE;
2520
2521         writel(0xffffffff, adapter->tgt_status_reg);
2522         /* read twice to ensure write is flushed */
2523         readl(adapter->isr_int_vec);
2524         readl(adapter->isr_int_vec);
2525
2526         return IRQ_HANDLED;
2527 }
2528
2529 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2530 {
2531         struct qlcnic_host_sds_ring *sds_ring = data;
2532         struct qlcnic_adapter *adapter = sds_ring->adapter;
2533
2534         if (adapter->flags & QLCNIC_MSIX_ENABLED)
2535                 goto done;
2536         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2537                 writel(0xffffffff, adapter->tgt_status_reg);
2538                 goto done;
2539         }
2540
2541         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2542                 return IRQ_NONE;
2543
2544 done:
2545         adapter->ahw->diag_cnt++;
2546         qlcnic_enable_int(sds_ring);
2547         return IRQ_HANDLED;
2548 }
2549
2550 static irqreturn_t qlcnic_intr(int irq, void *data)
2551 {
2552         struct qlcnic_host_sds_ring *sds_ring = data;
2553         struct qlcnic_adapter *adapter = sds_ring->adapter;
2554
2555         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2556                 return IRQ_NONE;
2557
2558         napi_schedule(&sds_ring->napi);
2559
2560         return IRQ_HANDLED;
2561 }
2562
2563 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2564 {
2565         struct qlcnic_host_sds_ring *sds_ring = data;
2566         struct qlcnic_adapter *adapter = sds_ring->adapter;
2567
2568         /* clear interrupt */
2569         writel(0xffffffff, adapter->tgt_status_reg);
2570
2571         napi_schedule(&sds_ring->napi);
2572         return IRQ_HANDLED;
2573 }
2574
2575 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2576 {
2577         struct qlcnic_host_sds_ring *sds_ring = data;
2578
2579         napi_schedule(&sds_ring->napi);
2580         return IRQ_HANDLED;
2581 }
2582
2583 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
2584 {
2585         struct qlcnic_host_tx_ring *tx_ring = data;
2586
2587         napi_schedule(&tx_ring->napi);
2588         return IRQ_HANDLED;
2589 }
2590
2591 #ifdef CONFIG_NET_POLL_CONTROLLER
2592 static void qlcnic_poll_controller(struct net_device *netdev)
2593 {
2594         int ring;
2595         struct qlcnic_host_sds_ring *sds_ring;
2596         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2597         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2598
2599         disable_irq(adapter->irq);
2600         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2601                 sds_ring = &recv_ctx->sds_rings[ring];
2602                 qlcnic_intr(adapter->irq, sds_ring);
2603         }
2604         enable_irq(adapter->irq);
2605 }
2606 #endif
2607
2608 static void
2609 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2610 {
2611         u32 val;
2612
2613         val = adapter->portnum & 0xf;
2614         val |= encoding << 7;
2615         val |= (jiffies - adapter->dev_rst_time) << 8;
2616
2617         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2618         adapter->dev_rst_time = jiffies;
2619 }
2620
2621 static int
2622 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2623 {
2624         u32  val;
2625
2626         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2627                         state != QLCNIC_DEV_NEED_QUISCENT);
2628
2629         if (qlcnic_api_lock(adapter))
2630                 return -EIO;
2631
2632         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2633
2634         if (state == QLCNIC_DEV_NEED_RESET)
2635                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2636         else if (state == QLCNIC_DEV_NEED_QUISCENT)
2637                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2638
2639         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2640
2641         qlcnic_api_unlock(adapter);
2642
2643         return 0;
2644 }
2645
2646 static int
2647 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2648 {
2649         u32  val;
2650
2651         if (qlcnic_api_lock(adapter))
2652                 return -EBUSY;
2653
2654         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2655         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2656         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2657
2658         qlcnic_api_unlock(adapter);
2659
2660         return 0;
2661 }
2662
2663 static void
2664 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2665 {
2666         u32  val;
2667
2668         if (qlcnic_api_lock(adapter))
2669                 goto err;
2670
2671         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2672         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2673         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2674
2675         if (failed) {
2676                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2677                                     QLCNIC_DEV_FAILED);
2678                 dev_info(&adapter->pdev->dev,
2679                                 "Device state set to Failed. Please Reboot\n");
2680         } else if (!(val & 0x11111111))
2681                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2682                                     QLCNIC_DEV_COLD);
2683
2684         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2685         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2686         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2687
2688         qlcnic_api_unlock(adapter);
2689 err:
2690         adapter->fw_fail_cnt = 0;
2691         adapter->flags &= ~QLCNIC_FW_HANG;
2692         clear_bit(__QLCNIC_START_FW, &adapter->state);
2693         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2694 }
2695
2696 /* Grab api lock, before checking state */
2697 static int
2698 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2699 {
2700         int act, state, active_mask;
2701         struct qlcnic_hardware_context *ahw = adapter->ahw;
2702
2703         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2704         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2705
2706         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
2707                 active_mask = (~(1 << (ahw->pci_func * 4)));
2708                 act = act & active_mask;
2709         }
2710
2711         if (((state & 0x11111111) == (act & 0x11111111)) ||
2712                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2713                 return 0;
2714         else
2715                 return 1;
2716 }
2717
2718 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2719 {
2720         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2721
2722         if (val != QLCNIC_DRV_IDC_VER) {
2723                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2724                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2725         }
2726
2727         return 0;
2728 }
2729
2730 static int
2731 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2732 {
2733         u32 val, prev_state;
2734         u8 dev_init_timeo = adapter->dev_init_timeo;
2735         u8 portnum = adapter->portnum;
2736         u8 ret;
2737
2738         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2739                 return 1;
2740
2741         if (qlcnic_api_lock(adapter))
2742                 return -1;
2743
2744         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2745         if (!(val & (1 << (portnum * 4)))) {
2746                 QLC_DEV_SET_REF_CNT(val, portnum);
2747                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2748         }
2749
2750         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2751         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2752
2753         switch (prev_state) {
2754         case QLCNIC_DEV_COLD:
2755                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2756                                     QLCNIC_DEV_INITIALIZING);
2757                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
2758                                     QLCNIC_DRV_IDC_VER);
2759                 qlcnic_idc_debug_info(adapter, 0);
2760                 qlcnic_api_unlock(adapter);
2761                 return 1;
2762
2763         case QLCNIC_DEV_READY:
2764                 ret = qlcnic_check_idc_ver(adapter);
2765                 qlcnic_api_unlock(adapter);
2766                 return ret;
2767
2768         case QLCNIC_DEV_NEED_RESET:
2769                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2770                 QLC_DEV_SET_RST_RDY(val, portnum);
2771                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2772                 break;
2773
2774         case QLCNIC_DEV_NEED_QUISCENT:
2775                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2776                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
2777                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2778                 break;
2779
2780         case QLCNIC_DEV_FAILED:
2781                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
2782                 qlcnic_api_unlock(adapter);
2783                 return -1;
2784
2785         case QLCNIC_DEV_INITIALIZING:
2786         case QLCNIC_DEV_QUISCENT:
2787                 break;
2788         }
2789
2790         qlcnic_api_unlock(adapter);
2791
2792         do {
2793                 msleep(1000);
2794                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2795
2796                 if (prev_state == QLCNIC_DEV_QUISCENT)
2797                         continue;
2798         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
2799
2800         if (!dev_init_timeo) {
2801                 dev_err(&adapter->pdev->dev,
2802                         "Waiting for device to initialize timeout\n");
2803                 return -1;
2804         }
2805
2806         if (qlcnic_api_lock(adapter))
2807                 return -1;
2808
2809         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2810         QLC_DEV_CLR_RST_QSCNT(val, portnum);
2811         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2812
2813         ret = qlcnic_check_idc_ver(adapter);
2814         qlcnic_api_unlock(adapter);
2815
2816         return ret;
2817 }
2818
2819 static void
2820 qlcnic_fwinit_work(struct work_struct *work)
2821 {
2822         struct qlcnic_adapter *adapter = container_of(work,
2823                         struct qlcnic_adapter, fw_work.work);
2824         u32 dev_state = 0xf;
2825         u32 val;
2826
2827         if (qlcnic_api_lock(adapter))
2828                 goto err_ret;
2829
2830         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2831         if (dev_state == QLCNIC_DEV_QUISCENT ||
2832             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2833                 qlcnic_api_unlock(adapter);
2834                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2835                                                 FW_POLL_DELAY * 2);
2836                 return;
2837         }
2838
2839         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
2840                 qlcnic_api_unlock(adapter);
2841                 goto wait_npar;
2842         }
2843
2844         if (dev_state == QLCNIC_DEV_INITIALIZING ||
2845             dev_state == QLCNIC_DEV_READY) {
2846                 dev_info(&adapter->pdev->dev, "Detected state change from "
2847                                 "DEV_NEED_RESET, skipping ack check\n");
2848                 goto skip_ack_check;
2849         }
2850
2851         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2852                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2853                                         adapter->reset_ack_timeo);
2854                 goto skip_ack_check;
2855         }
2856
2857         if (!qlcnic_check_drv_state(adapter)) {
2858 skip_ack_check:
2859                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2860
2861                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2862                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2863                                             QLCNIC_DEV_INITIALIZING);
2864                         set_bit(__QLCNIC_START_FW, &adapter->state);
2865                         QLCDB(adapter, DRV, "Restarting fw\n");
2866                         qlcnic_idc_debug_info(adapter, 0);
2867                         val = QLC_SHARED_REG_RD32(adapter,
2868                                                   QLCNIC_CRB_DRV_STATE);
2869                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2870                         QLC_SHARED_REG_WR32(adapter,
2871                                             QLCNIC_CRB_DRV_STATE, val);
2872                 }
2873
2874                 qlcnic_api_unlock(adapter);
2875
2876                 rtnl_lock();
2877                 if (adapter->ahw->fw_dump.enable &&
2878                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2879                         QLCDB(adapter, DRV, "Take FW dump\n");
2880                         qlcnic_dump_fw(adapter);
2881                         adapter->flags |= QLCNIC_FW_HANG;
2882                 }
2883                 rtnl_unlock();
2884
2885                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
2886                 if (!adapter->nic_ops->start_firmware(adapter)) {
2887                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2888                         adapter->fw_wait_cnt = 0;
2889                         return;
2890                 }
2891                 goto err_ret;
2892         }
2893
2894         qlcnic_api_unlock(adapter);
2895
2896 wait_npar:
2897         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2898         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
2899
2900         switch (dev_state) {
2901         case QLCNIC_DEV_READY:
2902                 if (!qlcnic_start_firmware(adapter)) {
2903                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2904                         adapter->fw_wait_cnt = 0;
2905                         return;
2906                 }
2907         case QLCNIC_DEV_FAILED:
2908                 break;
2909         default:
2910                 qlcnic_schedule_work(adapter,
2911                         qlcnic_fwinit_work, FW_POLL_DELAY);
2912                 return;
2913         }
2914
2915 err_ret:
2916         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2917                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
2918         netif_device_attach(adapter->netdev);
2919         qlcnic_clr_all_drv_state(adapter, 0);
2920 }
2921
2922 static void
2923 qlcnic_detach_work(struct work_struct *work)
2924 {
2925         struct qlcnic_adapter *adapter = container_of(work,
2926                         struct qlcnic_adapter, fw_work.work);
2927         struct net_device *netdev = adapter->netdev;
2928         u32 status;
2929
2930         netif_device_detach(netdev);
2931
2932         /* Dont grab rtnl lock during Quiscent mode */
2933         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2934                 if (netif_running(netdev))
2935                         __qlcnic_down(adapter, netdev);
2936         } else
2937                 qlcnic_down(adapter, netdev);
2938
2939         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2940
2941         if (status & QLCNIC_RCODE_FATAL_ERROR) {
2942                 dev_err(&adapter->pdev->dev,
2943                         "Detaching the device: peg halt status1=0x%x\n",
2944                                         status);
2945
2946                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
2947                         dev_err(&adapter->pdev->dev,
2948                         "On board active cooling fan failed. "
2949                                 "Device has been halted.\n");
2950                         dev_err(&adapter->pdev->dev,
2951                                 "Replace the adapter.\n");
2952                 }
2953
2954                 goto err_ret;
2955         }
2956
2957         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
2958                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
2959                         adapter->ahw->temp);
2960                 goto err_ret;
2961         }
2962
2963         /* Dont ack if this instance is the reset owner */
2964         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2965                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
2966                         dev_err(&adapter->pdev->dev,
2967                                 "Failed to set driver state,"
2968                                         "detaching the device.\n");
2969                         goto err_ret;
2970                 }
2971         }
2972
2973         adapter->fw_wait_cnt = 0;
2974
2975         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2976
2977         return;
2978
2979 err_ret:
2980         netif_device_attach(netdev);
2981         qlcnic_clr_all_drv_state(adapter, 1);
2982 }
2983
2984 /*Transit NPAR state to NON Operational */
2985 static void
2986 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
2987 {
2988         u32 state;
2989
2990         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2991         if (state == QLCNIC_DEV_NPAR_NON_OPER)
2992                 return;
2993
2994         if (qlcnic_api_lock(adapter))
2995                 return;
2996         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2997                             QLCNIC_DEV_NPAR_NON_OPER);
2998         qlcnic_api_unlock(adapter);
2999 }
3000
3001 void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter, u32 key)
3002 {
3003         u32 state, xg_val = 0, gb_val = 0;
3004
3005         qlcnic_xg_set_xg0_mask(xg_val);
3006         qlcnic_xg_set_xg1_mask(xg_val);
3007         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3008         qlcnic_gb_set_gb0_mask(gb_val);
3009         qlcnic_gb_set_gb1_mask(gb_val);
3010         qlcnic_gb_set_gb2_mask(gb_val);
3011         qlcnic_gb_set_gb3_mask(gb_val);
3012         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3013         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3014                                 " on all ports\n");
3015         adapter->need_fw_reset = 1;
3016
3017         if (qlcnic_api_lock(adapter))
3018                 return;
3019
3020         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3021
3022         if (state == QLCNIC_DEV_READY) {
3023                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3024                                     QLCNIC_DEV_NEED_RESET);
3025                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3026                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3027                 qlcnic_idc_debug_info(adapter, 0);
3028         }
3029
3030         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3031                             QLCNIC_DEV_NPAR_NON_OPER);
3032         qlcnic_api_unlock(adapter);
3033 }
3034
3035 /* Transit to NPAR READY state from NPAR NOT READY state */
3036 static void
3037 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3038 {
3039         if (qlcnic_api_lock(adapter))
3040                 return;
3041
3042         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3043                             QLCNIC_DEV_NPAR_OPER);
3044         QLCDB(adapter, DRV, "NPAR operational state set\n");
3045
3046         qlcnic_api_unlock(adapter);
3047 }
3048
3049 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3050                           work_func_t func, int delay)
3051 {
3052         if (test_bit(__QLCNIC_AER, &adapter->state))
3053                 return;
3054
3055         INIT_DELAYED_WORK(&adapter->fw_work, func);
3056         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3057                            round_jiffies_relative(delay));
3058 }
3059
3060 static void
3061 qlcnic_attach_work(struct work_struct *work)
3062 {
3063         struct qlcnic_adapter *adapter = container_of(work,
3064                                 struct qlcnic_adapter, fw_work.work);
3065         struct net_device *netdev = adapter->netdev;
3066         u32 npar_state;
3067
3068         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3069                 npar_state = QLC_SHARED_REG_RD32(adapter,
3070                                                  QLCNIC_CRB_DEV_NPAR_STATE);
3071                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3072                         qlcnic_clr_all_drv_state(adapter, 0);
3073                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3074                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
3075                                                         FW_POLL_DELAY);
3076                 else
3077                         goto attach;
3078                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3079                 return;
3080         }
3081 attach:
3082         if (netif_running(netdev)) {
3083                 if (qlcnic_up(adapter, netdev))
3084                         goto done;
3085
3086                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3087         }
3088
3089 done:
3090         netif_device_attach(netdev);
3091         adapter->fw_fail_cnt = 0;
3092         adapter->flags &= ~QLCNIC_FW_HANG;
3093         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3094
3095         if (!qlcnic_clr_drv_state(adapter))
3096                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3097                                                         FW_POLL_DELAY);
3098 }
3099
3100 static int
3101 qlcnic_check_health(struct qlcnic_adapter *adapter)
3102 {
3103         u32 state = 0, heartbeat;
3104         u32 peg_status;
3105
3106         if (qlcnic_check_temp(adapter))
3107                 goto detach;
3108
3109         if (adapter->need_fw_reset)
3110                 qlcnic_dev_request_reset(adapter, 0);
3111
3112         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3113         if (state == QLCNIC_DEV_NEED_RESET) {
3114                 qlcnic_set_npar_non_operational(adapter);
3115                 adapter->need_fw_reset = 1;
3116         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3117                 goto detach;
3118
3119         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3120         if (heartbeat != adapter->heartbeat) {
3121                 adapter->heartbeat = heartbeat;
3122                 adapter->fw_fail_cnt = 0;
3123                 if (adapter->need_fw_reset)
3124                         goto detach;
3125
3126                 if (adapter->ahw->reset_context && qlcnic_auto_fw_reset) {
3127                         qlcnic_reset_hw_context(adapter);
3128                         adapter->netdev->trans_start = jiffies;
3129                 }
3130
3131                 return 0;
3132         }
3133
3134         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3135                 return 0;
3136
3137         adapter->flags |= QLCNIC_FW_HANG;
3138
3139         qlcnic_dev_request_reset(adapter, 0);
3140
3141         if (qlcnic_auto_fw_reset)
3142                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3143
3144         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3145         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3146         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3147                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3148                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3149                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3150                         "PEG_NET_4_PC: 0x%x\n",
3151                         peg_status,
3152                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3153                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c),
3154                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c),
3155                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c),
3156                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c),
3157                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c));
3158         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3159                 dev_err(&adapter->pdev->dev,
3160                         "Firmware aborted with error code 0x00006700. "
3161                                 "Device is being reset.\n");
3162 detach:
3163         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3164                 QLCNIC_DEV_NEED_RESET;
3165
3166         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3167                                                       &adapter->state)) {
3168
3169                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3170                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3171         }
3172
3173         return 1;
3174 }
3175
3176 static void
3177 qlcnic_fw_poll_work(struct work_struct *work)
3178 {
3179         struct qlcnic_adapter *adapter = container_of(work,
3180                                 struct qlcnic_adapter, fw_work.work);
3181
3182         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3183                 goto reschedule;
3184
3185
3186         if (qlcnic_check_health(adapter))
3187                 return;
3188
3189         if (adapter->fhash.fnum)
3190                 qlcnic_prune_lb_filters(adapter);
3191
3192 reschedule:
3193         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3194 }
3195
3196 static int qlcnic_is_first_func(struct pci_dev *pdev)
3197 {
3198         struct pci_dev *oth_pdev;
3199         int val = pdev->devfn;
3200
3201         while (val-- > 0) {
3202                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3203                         (pdev->bus), pdev->bus->number,
3204                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3205                 if (!oth_pdev)
3206                         continue;
3207
3208                 if (oth_pdev->current_state != PCI_D3cold) {
3209                         pci_dev_put(oth_pdev);
3210                         return 0;
3211                 }
3212                 pci_dev_put(oth_pdev);
3213         }
3214         return 1;
3215 }
3216
3217 static int qlcnic_attach_func(struct pci_dev *pdev)
3218 {
3219         int err, first_func;
3220         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3221         struct net_device *netdev = adapter->netdev;
3222
3223         pdev->error_state = pci_channel_io_normal;
3224
3225         err = pci_enable_device(pdev);
3226         if (err)
3227                 return err;
3228
3229         pci_set_power_state(pdev, PCI_D0);
3230         pci_set_master(pdev);
3231         pci_restore_state(pdev);
3232
3233         first_func = qlcnic_is_first_func(pdev);
3234
3235         if (qlcnic_api_lock(adapter))
3236                 return -EINVAL;
3237
3238         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3239                 adapter->need_fw_reset = 1;
3240                 set_bit(__QLCNIC_START_FW, &adapter->state);
3241                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3242                                     QLCNIC_DEV_INITIALIZING);
3243                 QLCDB(adapter, DRV, "Restarting fw\n");
3244         }
3245         qlcnic_api_unlock(adapter);
3246
3247         err = qlcnic_start_firmware(adapter);
3248         if (err)
3249                 return err;
3250
3251         qlcnic_clr_drv_state(adapter);
3252         kfree(adapter->msix_entries);
3253         adapter->msix_entries = NULL;
3254         err = qlcnic_setup_intr(adapter, 0);
3255
3256         if (err) {
3257                 kfree(adapter->msix_entries);
3258                 netdev_err(netdev, "failed to setup interrupt\n");
3259                 return err;
3260         }
3261
3262         if (qlcnic_83xx_check(adapter)) {
3263                 /* register for NIC IDC AEN Events */
3264                 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3265                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3266                 if (err) {
3267                         dev_err(&adapter->pdev->dev,
3268                                 "failed to setup mbx interrupt\n");
3269                         qlcnic_clr_all_drv_state(adapter, 1);
3270                         clear_bit(__QLCNIC_AER, &adapter->state);
3271                         goto done;
3272                 }
3273         }
3274
3275         if (netif_running(netdev)) {
3276                 err = qlcnic_attach(adapter);
3277                 if (err) {
3278                         qlcnic_clr_all_drv_state(adapter, 1);
3279                         clear_bit(__QLCNIC_AER, &adapter->state);
3280                         netif_device_attach(netdev);
3281                         return err;
3282                 }
3283
3284                 err = qlcnic_up(adapter, netdev);
3285                 if (err)
3286                         goto done;
3287
3288                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3289         }
3290  done:
3291         netif_device_attach(netdev);
3292         return err;
3293 }
3294
3295 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3296                                                 pci_channel_state_t state)
3297 {
3298         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3299         struct net_device *netdev = adapter->netdev;
3300
3301         if (state == pci_channel_io_perm_failure)
3302                 return PCI_ERS_RESULT_DISCONNECT;
3303
3304         if (state == pci_channel_io_normal)
3305                 return PCI_ERS_RESULT_RECOVERED;
3306
3307         set_bit(__QLCNIC_AER, &adapter->state);
3308         netif_device_detach(netdev);
3309
3310         cancel_delayed_work_sync(&adapter->fw_work);
3311
3312         if (netif_running(netdev))
3313                 qlcnic_down(adapter, netdev);
3314
3315         if (qlcnic_83xx_check(adapter)) {
3316                 qlcnic_83xx_free_mbx_intr(adapter);
3317                 qlcnic_83xx_register_nic_idc_func(adapter, 0);
3318                 cancel_delayed_work_sync(&adapter->idc_aen_work);
3319         }
3320
3321         qlcnic_detach(adapter);
3322         qlcnic_teardown_intr(adapter);
3323
3324         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3325
3326         pci_save_state(pdev);
3327         pci_disable_device(pdev);
3328
3329         return PCI_ERS_RESULT_NEED_RESET;
3330 }
3331
3332 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3333 {
3334         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3335                                 PCI_ERS_RESULT_RECOVERED;
3336 }
3337
3338 static void qlcnic_io_resume(struct pci_dev *pdev)
3339 {
3340         u32 state;
3341         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3342
3343         pci_cleanup_aer_uncorrect_error_status(pdev);
3344         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3345         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3346                                                             &adapter->state))
3347                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3348                                                 FW_POLL_DELAY);
3349 }
3350
3351 static int
3352 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3353 {
3354         int err;
3355
3356         err = qlcnic_can_start_firmware(adapter);
3357         if (err)
3358                 return err;
3359
3360         err = qlcnic_check_npar_opertional(adapter);
3361         if (err)
3362                 return err;
3363
3364         err = qlcnic_initialize_nic(adapter);
3365         if (err)
3366                 return err;
3367
3368         qlcnic_check_options(adapter);
3369
3370         err = qlcnic_set_eswitch_port_config(adapter);
3371         if (err)
3372                 return err;
3373
3374         adapter->need_fw_reset = 0;
3375
3376         return err;
3377 }
3378
3379 int qlcnic_validate_max_rss(struct qlcnic_adapter *adapter,
3380                             __u32 val)
3381 {
3382         struct net_device *netdev = adapter->netdev;
3383         u8 max_hw = adapter->ahw->max_rx_ques;
3384         u32 max_allowed;
3385
3386         if (val > QLC_MAX_SDS_RINGS) {
3387                 netdev_err(netdev, "RSS value should not be higher than %u\n",
3388                            QLC_MAX_SDS_RINGS);
3389                 return -EINVAL;
3390         }
3391
3392         max_allowed = rounddown_pow_of_two(min_t(int, max_hw,
3393                                                  num_online_cpus()));
3394         if ((val > max_allowed) || (val < 2) || !is_power_of_2(val)) {
3395                 if (!is_power_of_2(val))
3396                         netdev_err(netdev, "RSS value should be a power of 2\n");
3397
3398                 if (val < 2)
3399                         netdev_err(netdev, "RSS value should not be lower than 2\n");
3400
3401                 if (val > max_hw)
3402                         netdev_err(netdev,
3403                                    "RSS value should not be higher than[%u], the max RSS rings supported by the adapter\n",
3404                                    max_hw);
3405
3406                 if (val > num_online_cpus())
3407                         netdev_err(netdev,
3408                                    "RSS value should not be higher than[%u], number of online CPUs in the system\n",
3409                                    num_online_cpus());
3410
3411                 netdev_err(netdev, "Unable to configure %u RSS rings\n", val);
3412
3413                 return -EINVAL;
3414         }
3415         return 0;
3416 }
3417
3418 int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data, size_t len)
3419 {
3420         int err;
3421         struct net_device *netdev = adapter->netdev;
3422
3423         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3424                 return -EBUSY;
3425
3426         netif_device_detach(netdev);
3427         if (netif_running(netdev))
3428                 __qlcnic_down(adapter, netdev);
3429
3430         qlcnic_detach(adapter);
3431
3432         if (qlcnic_83xx_check(adapter)) {
3433                 qlcnic_83xx_free_mbx_intr(adapter);
3434                 qlcnic_83xx_enable_mbx_poll(adapter);
3435         }
3436
3437         qlcnic_teardown_intr(adapter);
3438         err = qlcnic_setup_intr(adapter, data);
3439         if (err) {
3440                 kfree(adapter->msix_entries);
3441                 netdev_err(netdev, "failed to setup interrupt\n");
3442                 return err;
3443         }
3444
3445         if (qlcnic_83xx_check(adapter)) {
3446                 /* register for NIC IDC AEN Events */
3447                 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3448                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3449                 qlcnic_83xx_disable_mbx_poll(adapter);
3450                 if (err) {
3451                         dev_err(&adapter->pdev->dev,
3452                                 "failed to setup mbx interrupt\n");
3453                         goto done;
3454                 }
3455         }
3456
3457         if (netif_running(netdev)) {
3458                 err = qlcnic_attach(adapter);
3459                 if (err)
3460                         goto done;
3461                 err = __qlcnic_up(adapter, netdev);
3462                 if (err)
3463                         goto done;
3464                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3465         }
3466         err = len;
3467  done:
3468         netif_device_attach(netdev);
3469         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3470         return err;
3471 }
3472
3473 #ifdef CONFIG_INET
3474
3475 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
3476
3477 static void
3478 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
3479                         struct net_device *dev, unsigned long event)
3480 {
3481         struct in_device *indev;
3482
3483         indev = in_dev_get(dev);
3484         if (!indev)
3485                 return;
3486
3487         for_ifa(indev) {
3488                 switch (event) {
3489                 case NETDEV_UP:
3490                         qlcnic_config_ipaddr(adapter,
3491                                         ifa->ifa_address, QLCNIC_IP_UP);
3492                         break;
3493                 case NETDEV_DOWN:
3494                         qlcnic_config_ipaddr(adapter,
3495                                         ifa->ifa_address, QLCNIC_IP_DOWN);
3496                         break;
3497                 default:
3498                         break;
3499                 }
3500         } endfor_ifa(indev);
3501
3502         in_dev_put(indev);
3503 }
3504
3505 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
3506 {
3507         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3508         struct net_device *dev;
3509         u16 vid;
3510
3511         qlcnic_config_indev_addr(adapter, netdev, event);
3512
3513         rcu_read_lock();
3514         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
3515                 dev = __vlan_find_dev_deep(netdev, htons(ETH_P_8021Q), vid);
3516                 if (!dev)
3517                         continue;
3518                 qlcnic_config_indev_addr(adapter, dev, event);
3519         }
3520         rcu_read_unlock();
3521 }
3522
3523 static int qlcnic_netdev_event(struct notifier_block *this,
3524                                  unsigned long event, void *ptr)
3525 {
3526         struct qlcnic_adapter *adapter;
3527         struct net_device *dev = (struct net_device *)ptr;
3528
3529 recheck:
3530         if (dev == NULL)
3531                 goto done;
3532
3533         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3534                 dev = vlan_dev_real_dev(dev);
3535                 goto recheck;
3536         }
3537
3538         if (!is_qlcnic_netdev(dev))
3539                 goto done;
3540
3541         adapter = netdev_priv(dev);
3542
3543         if (!adapter)
3544                 goto done;
3545
3546         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3547                 goto done;
3548
3549         qlcnic_config_indev_addr(adapter, dev, event);
3550 done:
3551         return NOTIFY_DONE;
3552 }
3553
3554 static int
3555 qlcnic_inetaddr_event(struct notifier_block *this,
3556                 unsigned long event, void *ptr)
3557 {
3558         struct qlcnic_adapter *adapter;
3559         struct net_device *dev;
3560
3561         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3562
3563         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3564
3565 recheck:
3566         if (dev == NULL)
3567                 goto done;
3568
3569         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3570                 dev = vlan_dev_real_dev(dev);
3571                 goto recheck;
3572         }
3573
3574         if (!is_qlcnic_netdev(dev))
3575                 goto done;
3576
3577         adapter = netdev_priv(dev);
3578
3579         if (!adapter)
3580                 goto done;
3581
3582         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3583                 goto done;
3584
3585         switch (event) {
3586         case NETDEV_UP:
3587                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
3588
3589                 break;
3590         case NETDEV_DOWN:
3591                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
3592
3593                 break;
3594         default:
3595                 break;
3596         }
3597
3598 done:
3599         return NOTIFY_DONE;
3600 }
3601
3602 static struct notifier_block    qlcnic_netdev_cb = {
3603         .notifier_call = qlcnic_netdev_event,
3604 };
3605
3606 static struct notifier_block qlcnic_inetaddr_cb = {
3607         .notifier_call = qlcnic_inetaddr_event,
3608 };
3609 #else
3610 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
3611 { }
3612 #endif
3613 static const struct pci_error_handlers qlcnic_err_handler = {
3614         .error_detected = qlcnic_io_error_detected,
3615         .slot_reset = qlcnic_io_slot_reset,
3616         .resume = qlcnic_io_resume,
3617 };
3618
3619 static struct pci_driver qlcnic_driver = {
3620         .name = qlcnic_driver_name,
3621         .id_table = qlcnic_pci_tbl,
3622         .probe = qlcnic_probe,
3623         .remove = qlcnic_remove,
3624 #ifdef CONFIG_PM
3625         .suspend = qlcnic_suspend,
3626         .resume = qlcnic_resume,
3627 #endif
3628         .shutdown = qlcnic_shutdown,
3629         .err_handler = &qlcnic_err_handler,
3630 #ifdef CONFIG_QLCNIC_SRIOV
3631         .sriov_configure = qlcnic_pci_sriov_configure,
3632 #endif
3633
3634 };
3635
3636 static int __init qlcnic_init_module(void)
3637 {
3638         int ret;
3639
3640         printk(KERN_INFO "%s\n", qlcnic_driver_string);
3641
3642 #ifdef CONFIG_INET
3643         register_netdevice_notifier(&qlcnic_netdev_cb);
3644         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
3645 #endif
3646
3647         ret = pci_register_driver(&qlcnic_driver);
3648         if (ret) {
3649 #ifdef CONFIG_INET
3650                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3651                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3652 #endif
3653         }
3654
3655         return ret;
3656 }
3657
3658 module_init(qlcnic_init_module);
3659
3660 static void __exit qlcnic_exit_module(void)
3661 {
3662         pci_unregister_driver(&qlcnic_driver);
3663
3664 #ifdef CONFIG_INET
3665         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3666         unregister_netdevice_notifier(&qlcnic_netdev_cb);
3667 #endif
3668 }
3669
3670 module_exit(qlcnic_exit_module);