Pileus Git - ~andy/linux/blob - 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 static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
  56 static void qlcnic_remove(struct pci_dev *pdev);
  57 static int qlcnic_open(struct net_device *netdev);
  58 static int qlcnic_close(struct net_device *netdev);
  59 static void qlcnic_tx_timeout(struct net_device *netdev);
  60 static void qlcnic_attach_work(struct work_struct *work);
  61 static void qlcnic_fwinit_work(struct work_struct *work);
  62 static void qlcnic_fw_poll_work(struct work_struct *work);
  63 #ifdef CONFIG_NET_POLL_CONTROLLER
  64 static void qlcnic_poll_controller(struct net_device *netdev);
  65 #endif
  66
  67 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
  68 static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8);
  69 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
  70
  71 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
  72 static irqreturn_t qlcnic_intr(int irq, void *data);
  73 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
  74 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
  75 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data);
  76
  77 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
  78 static int qlcnic_start_firmware(struct qlcnic_adapter *);
  79
  80 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
  81 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
  82 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
  83 static int qlcnic_vlan_rx_add(struct net_device *, __be16, u16);
  84 static int qlcnic_vlan_rx_del(struct net_device *, __be16, u16);
  85
  86 static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
  87 {
  88         struct qlcnic_hardware_context *ahw = adapter->ahw;
  89
  90         if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
  91                 return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
  92         else
  93                 return 1;
  94 }
  95
  96 /*  PCI Device ID Table  */
  97 #define ENTRY(device) \
  98         {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
  99         .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
 100
 101 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
 102         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
 103         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
 104         ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE834X),
 105         {0,}
 106 };
 107
 108 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
 109
 110
 111 inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
 112 {
 113         writel(tx_ring->producer, tx_ring->crb_cmd_producer);
 114 }
 115
 116 static const u32 msi_tgt_status[8] = {
 117         ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
 118         ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
 119         ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
 120         ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
 121 };
 122
 123 static const u32 qlcnic_reg_tbl[] = {
 124         0x1B20A8,       /* PEG_HALT_STAT1 */
 125         0x1B20AC,       /* PEG_HALT_STAT2 */
 126         0x1B20B0,       /* FW_HEARTBEAT */
 127         0x1B2100,       /* LOCK ID */
 128         0x1B2128,       /* FW_CAPABILITIES */
 129         0x1B2138,       /* drv active */
 130         0x1B2140,       /* dev state */
 131         0x1B2144,       /* drv state */
 132         0x1B2148,       /* drv scratch */
 133         0x1B214C,       /* dev partition info */
 134         0x1B2174,       /* drv idc ver */
 135         0x1B2150,       /* fw version major */
 136         0x1B2154,       /* fw version minor */
 137         0x1B2158,       /* fw version sub */
 138         0x1B219C,       /* npar state */
 139         0x1B21FC,       /* FW_IMG_VALID */
 140         0x1B2250,       /* CMD_PEG_STATE */
 141         0x1B233C,       /* RCV_PEG_STATE */
 142         0x1B23B4,       /* ASIC TEMP */
 143         0x1B216C,       /* FW api */
 144         0x1B2170,       /* drv op mode */
 145         0x13C010,       /* flash lock */
 146         0x13C014,       /* flash unlock */
 147 };
 148
 149 static const struct qlcnic_board_info qlcnic_boards[] = {
 150         { PCI_VENDOR_ID_QLOGIC,
 151           PCI_DEVICE_ID_QLOGIC_QLE834X,
 152           PCI_VENDOR_ID_QLOGIC,
 153           0x24e,
 154           "8300 Series Dual Port 10GbE Converged Network Adapter "
 155           "(TCP/IP Networking)" },
 156         { PCI_VENDOR_ID_QLOGIC,
 157           PCI_DEVICE_ID_QLOGIC_QLE834X,
 158           PCI_VENDOR_ID_QLOGIC,
 159           0x243,
 160           "8300 Series Single Port 10GbE Converged Network Adapter "
 161           "(TCP/IP Networking)" },
 162         { PCI_VENDOR_ID_QLOGIC,
 163           PCI_DEVICE_ID_QLOGIC_QLE834X,
 164           PCI_VENDOR_ID_QLOGIC,
 165           0x24a,
 166           "8300 Series Dual Port 10GbE Converged Network Adapter "
 167           "(TCP/IP Networking)" },
 168         { PCI_VENDOR_ID_QLOGIC,
 169           PCI_DEVICE_ID_QLOGIC_QLE834X,
 170           PCI_VENDOR_ID_QLOGIC,
 171           0x246,
 172           "8300 Series Dual Port 10GbE Converged Network Adapter "
 173           "(TCP/IP Networking)" },
 174         { PCI_VENDOR_ID_QLOGIC,
 175           PCI_DEVICE_ID_QLOGIC_QLE834X,
 176           PCI_VENDOR_ID_QLOGIC,
 177           0x252,
 178           "8300 Series Dual Port 10GbE Converged Network Adapter "
 179           "(TCP/IP Networking)" },
 180         { PCI_VENDOR_ID_QLOGIC,
 181           PCI_DEVICE_ID_QLOGIC_QLE834X,
 182           PCI_VENDOR_ID_QLOGIC,
 183           0x26e,
 184           "8300 Series Dual Port 10GbE Converged Network Adapter "
 185           "(TCP/IP Networking)" },
 186         { PCI_VENDOR_ID_QLOGIC,
 187           PCI_DEVICE_ID_QLOGIC_QLE834X,
 188           PCI_VENDOR_ID_QLOGIC,
 189           0x260,
 190           "8300 Series Dual Port 10GbE Converged Network Adapter "
 191           "(TCP/IP Networking)" },
 192         { PCI_VENDOR_ID_QLOGIC,
 193           PCI_DEVICE_ID_QLOGIC_QLE834X,
 194           PCI_VENDOR_ID_QLOGIC,
 195           0x266,
 196           "8300 Series Single Port 10GbE Converged Network Adapter "
 197           "(TCP/IP Networking)" },
 198         { PCI_VENDOR_ID_QLOGIC,
 199           PCI_DEVICE_ID_QLOGIC_QLE834X,
 200           PCI_VENDOR_ID_QLOGIC,
 201           0x269,
 202           "8300 Series Dual Port 10GbE Converged Network Adapter "
 203           "(TCP/IP Networking)" },
 204         { PCI_VENDOR_ID_QLOGIC,
 205           PCI_DEVICE_ID_QLOGIC_QLE834X,
 206           PCI_VENDOR_ID_QLOGIC,
 207           0x271,
 208           "8300 Series Dual Port 10GbE Converged Network Adapter "
 209           "(TCP/IP Networking)" },
 210         { PCI_VENDOR_ID_QLOGIC,
 211           PCI_DEVICE_ID_QLOGIC_QLE834X,
 212           0x0, 0x0, "8300 Series 1/10GbE Controller" },
 213         { PCI_VENDOR_ID_QLOGIC,
 214           PCI_DEVICE_ID_QLOGIC_QLE824X,
 215           PCI_VENDOR_ID_QLOGIC,
 216           0x203,
 217           "8200 Series Single Port 10GbE Converged Network Adapter"
 218           "(TCP/IP Networking)" },
 219         { PCI_VENDOR_ID_QLOGIC,
 220           PCI_DEVICE_ID_QLOGIC_QLE824X,
 221           PCI_VENDOR_ID_QLOGIC,
 222           0x207,
 223           "8200 Series Dual Port 10GbE Converged Network Adapter"
 224           "(TCP/IP Networking)" },
 225         { PCI_VENDOR_ID_QLOGIC,
 226           PCI_DEVICE_ID_QLOGIC_QLE824X,
 227           PCI_VENDOR_ID_QLOGIC,
 228           0x20b,
 229           "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter" },
 230         { PCI_VENDOR_ID_QLOGIC,
 231           PCI_DEVICE_ID_QLOGIC_QLE824X,
 232           PCI_VENDOR_ID_QLOGIC,
 233           0x20c,
 234           "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter" },
 235         { PCI_VENDOR_ID_QLOGIC,
 236           PCI_DEVICE_ID_QLOGIC_QLE824X,
 237           PCI_VENDOR_ID_QLOGIC,
 238           0x20f,
 239           "3200 Series Single Port 10Gb Intelligent Ethernet Adapter" },
 240         { PCI_VENDOR_ID_QLOGIC,
 241           PCI_DEVICE_ID_QLOGIC_QLE824X,
 242           0x103c, 0x3733,
 243           "NC523SFP 10Gb 2-port Server Adapter" },
 244         { PCI_VENDOR_ID_QLOGIC,
 245           PCI_DEVICE_ID_QLOGIC_QLE824X,
 246           0x103c, 0x3346,
 247           "CN1000Q Dual Port Converged Network Adapter" },
 248         { PCI_VENDOR_ID_QLOGIC,
 249           PCI_DEVICE_ID_QLOGIC_QLE824X,
 250           PCI_VENDOR_ID_QLOGIC,
 251           0x210,
 252           "QME8242-k 10GbE Dual Port Mezzanine Card" },
 253         { PCI_VENDOR_ID_QLOGIC,
 254           PCI_DEVICE_ID_QLOGIC_QLE824X,
 255           0x0, 0x0, "cLOM8214 1/10GbE Controller" },
 256 };
 257
 258 #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)
 259 #define QLC_MAX_SDS_RINGS       8
 260
 261 static const
 262 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
 263
 264 int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
 265 {
 266         int size = sizeof(struct qlcnic_host_sds_ring) * count;
 267
 268         recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
 269
 270         return recv_ctx->sds_rings == NULL;
 271 }
 272
 273 void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
 274 {
 275         if (recv_ctx->sds_rings != NULL)
 276                 kfree(recv_ctx->sds_rings);
 277
 278         recv_ctx->sds_rings = NULL;
 279 }
 280
 281 int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
 282 {
 283         u8 mac_addr[ETH_ALEN];
 284         struct net_device *netdev = adapter->netdev;
 285         struct pci_dev *pdev = adapter->pdev;
 286
 287         if (qlcnic_get_mac_address(adapter, mac_addr) != 0)
 288                 return -EIO;
 289
 290         memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
 291         memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
 292
 293         /* set station address */
 294
 295         if (!is_valid_ether_addr(netdev->dev_addr))
 296                 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
 297                                         netdev->dev_addr);
 298
 299         return 0;
 300 }
 301
 302 static void qlcnic_delete_adapter_mac(struct qlcnic_adapter *adapter)
 303 {
 304         struct qlcnic_mac_list_s *cur;
 305         struct list_head *head;
 306
 307         list_for_each(head, &adapter->mac_list) {
 308                 cur = list_entry(head, struct qlcnic_mac_list_s, list);
 309                 if (!memcmp(adapter->mac_addr, cur->mac_addr, ETH_ALEN)) {
 310                         qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
 311                                                   0, QLCNIC_MAC_DEL);
 312                         list_del(&cur->list);
 313                         kfree(cur);
 314                         return;
 315                 }
 316         }
 317 }
 318
 319 static int qlcnic_set_mac(struct net_device *netdev, void *p)
 320 {
 321         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 322         struct sockaddr *addr = p;
 323
 324         if (qlcnic_sriov_vf_check(adapter))
 325                 return -EINVAL;
 326
 327         if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
 328                 return -EOPNOTSUPP;
 329
 330         if (!is_valid_ether_addr(addr->sa_data))
 331                 return -EINVAL;
 332
 333         if (!memcmp(adapter->mac_addr, addr->sa_data, ETH_ALEN))
 334                 return 0;
 335
 336         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 337                 netif_device_detach(netdev);
 338                 qlcnic_napi_disable(adapter);
 339         }
 340
 341         qlcnic_delete_adapter_mac(adapter);
 342         memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
 343         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 344         qlcnic_set_multi(adapter->netdev);
 345
 346         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 347                 netif_device_attach(netdev);
 348                 qlcnic_napi_enable(adapter);
 349         }
 350         return 0;
 351 }
 352
 353 static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
 354                         struct net_device *netdev, const unsigned char *addr)
 355 {
 356         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 357         int err = -EOPNOTSUPP;
 358
 359         if (!adapter->fdb_mac_learn)
 360                 return ndo_dflt_fdb_del(ndm, tb, netdev, addr);
 361
 362         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 363                 if (is_unicast_ether_addr(addr)) {
 364                         err = dev_uc_del(netdev, addr);
 365                         if (!err)
 366                                 err = qlcnic_nic_del_mac(adapter, addr);
 367                 } else if (is_multicast_ether_addr(addr)) {
 368                         err = dev_mc_del(netdev, addr);
 369                 } else {
 370                         err =  -EINVAL;
 371                 }
 372         }
 373         return err;
 374 }
 375
 376 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 377                         struct net_device *netdev,
 378                         const unsigned char *addr, u16 flags)
 379 {
 380         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 381         int err = 0;
 382
 383         if (!adapter->fdb_mac_learn)
 384                 return ndo_dflt_fdb_add(ndm, tb, netdev, addr, flags);
 385
 386         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 387                 pr_info("%s: FDB e-switch is not enabled\n", __func__);
 388                 return -EOPNOTSUPP;
 389         }
 390
 391         if (ether_addr_equal(addr, adapter->mac_addr))
 392                 return err;
 393
 394         if (is_unicast_ether_addr(addr)) {
 395                 if (netdev_uc_count(netdev) < adapter->ahw->max_uc_count)
 396                         err = dev_uc_add_excl(netdev, addr);
 397                 else
 398                         err = -ENOMEM;
 399         } else if (is_multicast_ether_addr(addr)) {
 400                 err = dev_mc_add_excl(netdev, addr);
 401         } else {
 402                 err = -EINVAL;
 403         }
 404
 405         return err;
 406 }
 407
 408 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
 409                         struct net_device *netdev, int idx)
 410 {
 411         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 412
 413         if (!adapter->fdb_mac_learn)
 414                 return ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
 415
 416         if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
 417                 idx = ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
 418
 419         return idx;
 420 }
 421
 422 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
 423 {
 424         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
 425                 usleep_range(10000, 11000);
 426
 427         cancel_delayed_work_sync(&adapter->fw_work);
 428 }
 429
 430 static const struct net_device_ops qlcnic_netdev_ops = {
 431         .ndo_open          = qlcnic_open,
 432         .ndo_stop          = qlcnic_close,
 433         .ndo_start_xmit    = qlcnic_xmit_frame,
 434         .ndo_get_stats     = qlcnic_get_stats,
 435         .ndo_validate_addr = eth_validate_addr,
 436         .ndo_set_rx_mode   = qlcnic_set_multi,
 437         .ndo_set_mac_address    = qlcnic_set_mac,
 438         .ndo_change_mtu    = qlcnic_change_mtu,
 439         .ndo_fix_features  = qlcnic_fix_features,
 440         .ndo_set_features  = qlcnic_set_features,
 441         .ndo_tx_timeout    = qlcnic_tx_timeout,
 442         .ndo_vlan_rx_add_vid    = qlcnic_vlan_rx_add,
 443         .ndo_vlan_rx_kill_vid   = qlcnic_vlan_rx_del,
 444         .ndo_fdb_add            = qlcnic_fdb_add,
 445         .ndo_fdb_del            = qlcnic_fdb_del,
 446         .ndo_fdb_dump           = qlcnic_fdb_dump,
 447 #ifdef CONFIG_NET_POLL_CONTROLLER
 448         .ndo_poll_controller = qlcnic_poll_controller,
 449 #endif
 450 #ifdef CONFIG_QLCNIC_SRIOV
 451         .ndo_set_vf_mac         = qlcnic_sriov_set_vf_mac,
 452         .ndo_set_vf_tx_rate     = qlcnic_sriov_set_vf_tx_rate,
 453         .ndo_get_vf_config      = qlcnic_sriov_get_vf_config,
 454         .ndo_set_vf_vlan        = qlcnic_sriov_set_vf_vlan,
 455         .ndo_set_vf_spoofchk    = qlcnic_sriov_set_vf_spoofchk,
 456 #endif
 457 };
 458
 459 static const struct net_device_ops qlcnic_netdev_failed_ops = {
 460         .ndo_open          = qlcnic_open,
 461 };
 462
 463 static struct qlcnic_nic_template qlcnic_ops = {
 464         .config_bridged_mode    = qlcnic_config_bridged_mode,
 465         .config_led             = qlcnic_82xx_config_led,
 466         .start_firmware         = qlcnic_82xx_start_firmware,
 467         .request_reset          = qlcnic_82xx_dev_request_reset,
 468         .cancel_idc_work        = qlcnic_82xx_cancel_idc_work,
 469         .napi_add               = qlcnic_82xx_napi_add,
 470         .napi_del               = qlcnic_82xx_napi_del,
 471         .config_ipaddr          = qlcnic_82xx_config_ipaddr,
 472         .clear_legacy_intr      = qlcnic_82xx_clear_legacy_intr,
 473 };
 474
 475 struct qlcnic_nic_template qlcnic_vf_ops = {
 476         .config_bridged_mode    = qlcnicvf_config_bridged_mode,
 477         .config_led             = qlcnicvf_config_led,
 478         .start_firmware         = qlcnicvf_start_firmware
 479 };
 480
 481 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
 482         .read_crb                       = qlcnic_82xx_read_crb,
 483         .write_crb                      = qlcnic_82xx_write_crb,
 484         .read_reg                       = qlcnic_82xx_hw_read_wx_2M,
 485         .write_reg                      = qlcnic_82xx_hw_write_wx_2M,
 486         .get_mac_address                = qlcnic_82xx_get_mac_address,
 487         .setup_intr                     = qlcnic_82xx_setup_intr,
 488         .alloc_mbx_args                 = qlcnic_82xx_alloc_mbx_args,
 489         .mbx_cmd                        = qlcnic_82xx_issue_cmd,
 490         .get_func_no                    = qlcnic_82xx_get_func_no,
 491         .api_lock                       = qlcnic_82xx_api_lock,
 492         .api_unlock                     = qlcnic_82xx_api_unlock,
 493         .add_sysfs                      = qlcnic_82xx_add_sysfs,
 494         .remove_sysfs                   = qlcnic_82xx_remove_sysfs,
 495         .process_lb_rcv_ring_diag       = qlcnic_82xx_process_rcv_ring_diag,
 496         .create_rx_ctx                  = qlcnic_82xx_fw_cmd_create_rx_ctx,
 497         .create_tx_ctx                  = qlcnic_82xx_fw_cmd_create_tx_ctx,
 498         .del_rx_ctx                     = qlcnic_82xx_fw_cmd_del_rx_ctx,
 499         .del_tx_ctx                     = qlcnic_82xx_fw_cmd_del_tx_ctx,
 500         .setup_link_event               = qlcnic_82xx_linkevent_request,
 501         .get_nic_info                   = qlcnic_82xx_get_nic_info,
 502         .get_pci_info                   = qlcnic_82xx_get_pci_info,
 503         .set_nic_info                   = qlcnic_82xx_set_nic_info,
 504         .change_macvlan                 = qlcnic_82xx_sre_macaddr_change,
 505         .napi_enable                    = qlcnic_82xx_napi_enable,
 506         .napi_disable                   = qlcnic_82xx_napi_disable,
 507         .config_intr_coal               = qlcnic_82xx_config_intr_coalesce,
 508         .config_rss                     = qlcnic_82xx_config_rss,
 509         .config_hw_lro                  = qlcnic_82xx_config_hw_lro,
 510         .config_loopback                = qlcnic_82xx_set_lb_mode,
 511         .clear_loopback                 = qlcnic_82xx_clear_lb_mode,
 512         .config_promisc_mode            = qlcnic_82xx_nic_set_promisc,
 513         .change_l2_filter               = qlcnic_82xx_change_filter,
 514         .get_board_info                 = qlcnic_82xx_get_board_info,
 515         .set_mac_filter_count           = qlcnic_82xx_set_mac_filter_count,
 516         .free_mac_list                  = qlcnic_82xx_free_mac_list,
 517 };
 518
 519 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 520 {
 521         struct pci_dev *pdev = adapter->pdev;
 522         int err = -1, i;
 523         int max_tx_rings, tx_vector;
 524
 525         if (adapter->flags & QLCNIC_TX_INTR_SHARED) {
 526                 max_tx_rings = 0;
 527                 tx_vector = 0;
 528         } else {
 529                 max_tx_rings = adapter->max_drv_tx_rings;
 530                 tx_vector = 1;
 531         }
 532
 533         if (!adapter->msix_entries) {
 534                 adapter->msix_entries = kcalloc(num_msix,
 535                                                 sizeof(struct msix_entry),
 536                                                 GFP_KERNEL);
 537                 if (!adapter->msix_entries)
 538                         return -ENOMEM;
 539         }
 540
 541         adapter->max_sds_rings = 1;
 542         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 543
 544         if (adapter->ahw->msix_supported) {
 545  enable_msix:
 546                 for (i = 0; i < num_msix; i++)
 547                         adapter->msix_entries[i].entry = i;
 548                 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
 549                 if (err == 0) {
 550                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 551                         if (qlcnic_83xx_check(adapter)) {
 552                                 adapter->ahw->num_msix = num_msix;
 553                                 /* subtract mail box and tx ring vectors */
 554                                 adapter->max_sds_rings = num_msix -
 555                                                          max_tx_rings - 1;
 556                         } else {
 557                                 adapter->max_sds_rings = num_msix;
 558                         }
 559                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 560                         return err;
 561                 } else if (err > 0) {
 562                         dev_info(&pdev->dev,
 563                                  "Unable to allocate %d MSI-X interrupt vectors\n",
 564                                  num_msix);
 565                         if (qlcnic_83xx_check(adapter)) {
 566                                 if (err < (QLC_83XX_MINIMUM_VECTOR - tx_vector))
 567                                         return err;
 568                                 err -= (max_tx_rings + 1);
 569                                 num_msix = rounddown_pow_of_two(err);
 570                                 num_msix += (max_tx_rings + 1);
 571                         } else {
 572                                 num_msix = rounddown_pow_of_two(err);
 573                         }
 574
 575                         if (num_msix) {
 576                                 dev_info(&pdev->dev,
 577                                          "Trying to allocate %d MSI-X interrupt vectors\n",
 578                                          num_msix);
 579                                 goto enable_msix;
 580                         }
 581                 } else {
 582                         dev_info(&pdev->dev,
 583                                  "Unable to allocate %d MSI-X interrupt vectors\n",
 584                                  num_msix);
 585                 }
 586         }
 587
 588         return err;
 589 }
 590
 591 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
 592 {
 593         int err = 0;
 594         u32 offset, mask_reg;
 595         const struct qlcnic_legacy_intr_set *legacy_intrp;
 596         struct qlcnic_hardware_context *ahw = adapter->ahw;
 597         struct pci_dev *pdev = adapter->pdev;
 598
 599         if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
 600                 adapter->flags |= QLCNIC_MSI_ENABLED;
 601                 offset = msi_tgt_status[adapter->ahw->pci_func];
 602                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
 603                                                             offset);
 604                 dev_info(&pdev->dev, "using msi interrupts\n");
 605                 adapter->msix_entries[0].vector = pdev->irq;
 606                 return err;
 607         }
 608         if (qlcnic_use_msi || qlcnic_use_msi_x)
 609                 return -EOPNOTSUPP;
 610
 611         legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
 612         adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
 613         offset = legacy_intrp->tgt_status_reg;
 614         adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
 615         mask_reg = legacy_intrp->tgt_mask_reg;
 616         adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
 617         adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
 618         adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
 619         dev_info(&pdev->dev, "using legacy interrupts\n");
 620         adapter->msix_entries[0].vector = pdev->irq;
 621         return err;
 622 }
 623
 624 int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter, u8 num_intr)
 625 {
 626         int num_msix, err = 0;
 627
 628         if (!num_intr)
 629                 num_intr = QLCNIC_DEF_NUM_STS_DESC_RINGS;
 630
 631         if (adapter->ahw->msix_supported)
 632                 num_msix = rounddown_pow_of_two(min_t(int, num_online_cpus(),
 633                                                 num_intr));
 634         else
 635                 num_msix = 1;
 636
 637         err = qlcnic_enable_msix(adapter, num_msix);
 638         if (err == -ENOMEM || !err)
 639                 return err;
 640
 641         err = qlcnic_enable_msi_legacy(adapter);
 642         if (!err)
 643                 return err;
 644
 645         return -EIO;
 646 }
 647
 648 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 649 {
 650         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 651                 pci_disable_msix(adapter->pdev);
 652         if (adapter->flags & QLCNIC_MSI_ENABLED)
 653                 pci_disable_msi(adapter->pdev);
 654
 655         kfree(adapter->msix_entries);
 656         adapter->msix_entries = NULL;
 657
 658         if (adapter->ahw->intr_tbl) {
 659                 vfree(adapter->ahw->intr_tbl);
 660                 adapter->ahw->intr_tbl = NULL;
 661         }
 662 }
 663
 664 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
 665 {
 666         if (ahw->pci_base0 != NULL)
 667                 iounmap(ahw->pci_base0);
 668 }
 669
 670 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
 671 {
 672         struct qlcnic_pci_info *pci_info;
 673         int ret;
 674
 675         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 676                 switch (adapter->ahw->port_type) {
 677                 case QLCNIC_GBE:
 678                         adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_GBE_PORTS;
 679                         break;
 680                 case QLCNIC_XGBE:
 681                         adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_XG_PORTS;
 682                         break;
 683                 }
 684                 return 0;
 685         }
 686
 687         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
 688                 return 0;
 689
 690         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 691         if (!pci_info)
 692                 return -ENOMEM;
 693
 694         ret = qlcnic_get_pci_info(adapter, pci_info);
 695         kfree(pci_info);
 696         return ret;
 697 }
 698
 699 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 700 {
 701         struct qlcnic_pci_info *pci_info;
 702         int i, ret = 0, j = 0;
 703         u16 act_pci_func;
 704         u8 pfn;
 705
 706         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 707         if (!pci_info)
 708                 return -ENOMEM;
 709
 710         ret = qlcnic_get_pci_info(adapter, pci_info);
 711         if (ret)
 712                 goto err_pci_info;
 713
 714         act_pci_func = adapter->ahw->act_pci_func;
 715
 716         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
 717                                  act_pci_func, GFP_KERNEL);
 718         if (!adapter->npars) {
 719                 ret = -ENOMEM;
 720                 goto err_pci_info;
 721         }
 722
 723         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
 724                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
 725         if (!adapter->eswitch) {
 726                 ret = -ENOMEM;
 727                 goto err_npars;
 728         }
 729
 730         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 731                 pfn = pci_info[i].id;
 732
 733                 if (pfn >= QLCNIC_MAX_PCI_FUNC) {
 734                         ret = QL_STATUS_INVALID_PARAM;
 735                         goto err_eswitch;
 736                 }
 737
 738                 if (!pci_info[i].active ||
 739                     (pci_info[i].type != QLCNIC_TYPE_NIC))
 740                         continue;
 741
 742                 adapter->npars[j].pci_func = pfn;
 743                 adapter->npars[j].active = (u8)pci_info[i].active;
 744                 adapter->npars[j].type = (u8)pci_info[i].type;
 745                 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
 746                 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
 747                 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
 748                 j++;
 749         }
 750
 751         for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++) {
 752                 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
 753                 if (qlcnic_83xx_check(adapter))
 754                         qlcnic_enable_eswitch(adapter, i, 1);
 755         }
 756
 757         kfree(pci_info);
 758         return 0;
 759
 760 err_eswitch:
 761         kfree(adapter->eswitch);
 762         adapter->eswitch = NULL;
 763 err_npars:
 764         kfree(adapter->npars);
 765         adapter->npars = NULL;
 766 err_pci_info:
 767         kfree(pci_info);
 768
 769         return ret;
 770 }
 771
 772 static int
 773 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
 774 {
 775         u8 id;
 776         int ret;
 777         u32 data = QLCNIC_MGMT_FUNC;
 778         struct qlcnic_hardware_context *ahw = adapter->ahw;
 779
 780         ret = qlcnic_api_lock(adapter);
 781         if (ret)
 782                 goto err_lock;
 783
 784         id = ahw->pci_func;
 785         data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 786         data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
 787                QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
 788         QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
 789         qlcnic_api_unlock(adapter);
 790 err_lock:
 791         return ret;
 792 }
 793
 794 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
 795                             const struct pci_device_id *ent)
 796 {
 797         u32 op_mode, priv_level;
 798
 799         /* Determine FW API version */
 800         adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
 801                                                            QLCNIC_FW_API);
 802
 803         /* Find PCI function number */
 804         qlcnic_get_func_no(adapter);
 805
 806         /* Determine function privilege level */
 807         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 808         if (op_mode == QLC_DEV_DRV_DEFAULT)
 809                 priv_level = QLCNIC_MGMT_FUNC;
 810         else
 811                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
 812
 813         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
 814                 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
 815                 dev_info(&adapter->pdev->dev,
 816                         "HAL Version: %d Non Privileged function\n",
 817                          adapter->ahw->fw_hal_version);
 818                 adapter->nic_ops = &qlcnic_vf_ops;
 819         } else
 820                 adapter->nic_ops = &qlcnic_ops;
 821 }
 822
 823 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
 824 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
 825 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
 826 {
 827         switch (dev_id) {
 828         case PCI_DEVICE_ID_QLOGIC_QLE824X:
 829                 *bar = QLCNIC_82XX_BAR0_LENGTH;
 830                 break;
 831         case PCI_DEVICE_ID_QLOGIC_QLE834X:
 832         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
 833                 *bar = QLCNIC_83XX_BAR0_LENGTH;
 834                 break;
 835         default:
 836                 *bar = 0;
 837         }
 838 }
 839
 840 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
 841                                 struct qlcnic_hardware_context *ahw)
 842 {
 843         u32 offset;
 844         void __iomem *mem_ptr0 = NULL;
 845         unsigned long mem_len, pci_len0 = 0, bar0_len;
 846
 847         /* remap phys address */
 848         mem_len = pci_resource_len(pdev, 0);
 849
 850         qlcnic_get_bar_length(pdev->device, &bar0_len);
 851         if (mem_len >= bar0_len) {
 852
 853                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
 854                 if (mem_ptr0 == NULL) {
 855                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
 856                         return -EIO;
 857                 }
 858                 pci_len0 = mem_len;
 859         } else {
 860                 return -EIO;
 861         }
 862
 863         dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
 864
 865         ahw->pci_base0 = mem_ptr0;
 866         ahw->pci_len0 = pci_len0;
 867         offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
 868         qlcnic_get_ioaddr(ahw, offset);
 869
 870         return 0;
 871 }
 872
 873 static inline bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
 874                                                 int index)
 875 {
 876         struct pci_dev *pdev = adapter->pdev;
 877         unsigned short subsystem_vendor;
 878         bool ret = true;
 879
 880         subsystem_vendor = pdev->subsystem_vendor;
 881
 882         if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
 883             pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
 884                 if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
 885                     qlcnic_boards[index].sub_device == pdev->subsystem_device)
 886                         ret = true;
 887                 else
 888                         ret = false;
 889         }
 890
 891         return ret;
 892 }
 893
 894 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
 895 {
 896         struct pci_dev *pdev = adapter->pdev;
 897         int i, found = 0;
 898
 899         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
 900                 if (qlcnic_boards[i].vendor == pdev->vendor &&
 901                     qlcnic_boards[i].device == pdev->device &&
 902                     qlcnic_validate_subsystem_id(adapter, i)) {
 903                         found = 1;
 904                         break;
 905                 }
 906         }
 907
 908         if (!found)
 909                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
 910         else
 911                 sprintf(name, "%pM: %s" , adapter->mac_addr,
 912                         qlcnic_boards[i].short_name);
 913 }
 914
 915 static void
 916 qlcnic_check_options(struct qlcnic_adapter *adapter)
 917 {
 918         int err;
 919         u32 fw_major, fw_minor, fw_build, prev_fw_version;
 920         struct pci_dev *pdev = adapter->pdev;
 921         struct qlcnic_hardware_context *ahw = adapter->ahw;
 922         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
 923
 924         prev_fw_version = adapter->fw_version;
 925
 926         fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
 927         fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
 928         fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
 929
 930         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
 931
 932         err = qlcnic_get_board_info(adapter);
 933         if (err) {
 934                 dev_err(&pdev->dev, "Error getting board config info.\n");
 935                 return;
 936         }
 937         if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
 938                 if (fw_dump->tmpl_hdr == NULL ||
 939                                 adapter->fw_version > prev_fw_version) {
 940                         if (fw_dump->tmpl_hdr)
 941                                 vfree(fw_dump->tmpl_hdr);
 942                         if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
 943                                 dev_info(&pdev->dev,
 944                                         "Supports FW dump capability\n");
 945                 }
 946         }
 947
 948         dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
 949                  QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
 950
 951         if (adapter->ahw->port_type == QLCNIC_XGBE) {
 952                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 953                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
 954                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
 955                 } else {
 956                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
 957                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
 958                 }
 959
 960                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 961                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 962
 963         } else if (adapter->ahw->port_type == QLCNIC_GBE) {
 964                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
 965                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 966                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 967                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
 968         }
 969
 970         adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
 971
 972         adapter->num_txd = MAX_CMD_DESCRIPTORS;
 973
 974         adapter->max_rds_rings = MAX_RDS_RINGS;
 975 }
 976
 977 static int
 978 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
 979 {
 980         int err;
 981         struct qlcnic_info nic_info;
 982
 983         memset(&nic_info, 0, sizeof(struct qlcnic_info));
 984         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
 985         if (err)
 986                 return err;
 987
 988         adapter->ahw->physical_port = (u8)nic_info.phys_port;
 989         adapter->ahw->switch_mode = nic_info.switch_mode;
 990         adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
 991         adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
 992         adapter->ahw->capabilities = nic_info.capabilities;
 993
 994         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
 995                 u32 temp;
 996                 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
 997                 adapter->ahw->extra_capability[0] = temp;
 998         }
 999         adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1000         adapter->ahw->max_mtu = nic_info.max_mtu;
1001
1002         /* Disable NPAR for 83XX */
1003         if (qlcnic_83xx_check(adapter))
1004                 return err;
1005
1006         if (adapter->ahw->capabilities & BIT_6)
1007                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1008         else
1009                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1010
1011         return err;
1012 }
1013
1014 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1015                             struct qlcnic_esw_func_cfg *esw_cfg)
1016 {
1017         if (esw_cfg->discard_tagged)
1018                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1019         else
1020                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1021
1022         if (esw_cfg->vlan_id) {
1023                 adapter->rx_pvid = esw_cfg->vlan_id;
1024                 adapter->tx_pvid = esw_cfg->vlan_id;
1025         } else {
1026                 adapter->rx_pvid = 0;
1027                 adapter->tx_pvid = 0;
1028         }
1029 }
1030
1031 static int
1032 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1033 {
1034         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1035         int err;
1036
1037         if (qlcnic_sriov_vf_check(adapter)) {
1038                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1039                 if (err) {
1040                         netdev_err(netdev,
1041                                    "Cannot add VLAN filter for VLAN id %d, err=%d",
1042                                    vid, err);
1043                         return err;
1044                 }
1045         }
1046
1047         set_bit(vid, adapter->vlans);
1048         return 0;
1049 }
1050
1051 static int
1052 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1053 {
1054         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1055         int err;
1056
1057         if (qlcnic_sriov_vf_check(adapter)) {
1058                 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1059                 if (err) {
1060                         netdev_err(netdev,
1061                                    "Cannot delete VLAN filter for VLAN id %d, err=%d",
1062                                    vid, err);
1063                         return err;
1064                 }
1065         }
1066
1067         qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1068         clear_bit(vid, adapter->vlans);
1069         return 0;
1070 }
1071
1072 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1073                                       struct qlcnic_esw_func_cfg *esw_cfg)
1074 {
1075         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1076                                 QLCNIC_PROMISC_DISABLED);
1077
1078         if (esw_cfg->mac_anti_spoof)
1079                 adapter->flags |= QLCNIC_MACSPOOF;
1080
1081         if (!esw_cfg->mac_override)
1082                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1083
1084         if (!esw_cfg->promisc_mode)
1085                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1086 }
1087
1088 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1089 {
1090         struct qlcnic_esw_func_cfg esw_cfg;
1091
1092         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1093                 return 0;
1094
1095         esw_cfg.pci_func = adapter->ahw->pci_func;
1096         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1097                         return -EIO;
1098         qlcnic_set_vlan_config(adapter, &esw_cfg);
1099         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1100         qlcnic_set_netdev_features(adapter, &esw_cfg);
1101
1102         return 0;
1103 }
1104
1105 void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1106                                 struct qlcnic_esw_func_cfg *esw_cfg)
1107 {
1108         struct net_device *netdev = adapter->netdev;
1109
1110         if (qlcnic_83xx_check(adapter))
1111                 return;
1112
1113         adapter->offload_flags = esw_cfg->offload_flags;
1114         adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1115         netdev_update_features(netdev);
1116         adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
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                                         if (!(adapter->flags &
1414                                               QLCNIC_MSIX_ENABLED))
1415                                                 snprintf(sds_ring->name,
1416                                                          sizeof(sds_ring->name),
1417                                                          "qlcnic");
1418                                         else
1419                                                 snprintf(sds_ring->name,
1420                                                          sizeof(sds_ring->name),
1421                                                          "%s-tx-0-rx-%d",
1422                                                          netdev->name, ring);
1423                                 } else {
1424                                         snprintf(sds_ring->name,
1425                                                  sizeof(sds_ring->name),
1426                                                  "%s-rx-%d",
1427                                                  netdev->name, ring);
1428                                 }
1429                                 err = request_irq(sds_ring->irq, handler, flags,
1430                                                   sds_ring->name, sds_ring);
1431                                 if (err)
1432                                         return err;
1433                         }
1434                 }
1435                 if (qlcnic_83xx_check(adapter) &&
1436                     (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1437                     !(adapter->flags & QLCNIC_TX_INTR_SHARED)) {
1438                         handler = qlcnic_msix_tx_intr;
1439                         for (ring = 0; ring < adapter->max_drv_tx_rings;
1440                              ring++) {
1441                                 tx_ring = &adapter->tx_ring[ring];
1442                                 snprintf(tx_ring->name, sizeof(tx_ring->name),
1443                                          "%s-tx-%d", netdev->name, ring);
1444                                 err = request_irq(tx_ring->irq, handler, flags,
1445                                                   tx_ring->name, tx_ring);
1446                                 if (err)
1447                                         return err;
1448                         }
1449                 }
1450         }
1451         return 0;
1452 }
1453
1454 static void
1455 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1456 {
1457         int ring;
1458         struct qlcnic_host_sds_ring *sds_ring;
1459         struct qlcnic_host_tx_ring *tx_ring;
1460
1461         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1462
1463         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1464                 if (qlcnic_82xx_check(adapter) ||
1465                     (qlcnic_83xx_check(adapter) &&
1466                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1467                         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1468                                 sds_ring = &recv_ctx->sds_rings[ring];
1469                                 free_irq(sds_ring->irq, sds_ring);
1470                         }
1471                 }
1472                 if (qlcnic_83xx_check(adapter) &&
1473                     !(adapter->flags & QLCNIC_TX_INTR_SHARED)) {
1474                         for (ring = 0; ring < adapter->max_drv_tx_rings;
1475                              ring++) {
1476                                 tx_ring = &adapter->tx_ring[ring];
1477                                 if (tx_ring->irq)
1478                                         free_irq(tx_ring->irq, tx_ring);
1479                         }
1480                 }
1481         }
1482 }
1483
1484 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1485 {
1486         u32 capab = 0;
1487
1488         if (qlcnic_82xx_check(adapter)) {
1489                 if (adapter->ahw->extra_capability[0] &
1490                     QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1491                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1492         } else {
1493                 capab = adapter->ahw->capabilities;
1494                 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1495                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1496         }
1497 }
1498
1499 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1500 {
1501         int ring;
1502         struct qlcnic_host_rds_ring *rds_ring;
1503
1504         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1505                 return -EIO;
1506
1507         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1508                 return 0;
1509         if (qlcnic_set_eswitch_port_config(adapter))
1510                 return -EIO;
1511         qlcnic_get_lro_mss_capability(adapter);
1512
1513         if (qlcnic_fw_create_ctx(adapter))
1514                 return -EIO;
1515
1516         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1517                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1518                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1519         }
1520
1521         qlcnic_set_multi(netdev);
1522         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1523
1524         adapter->ahw->linkup = 0;
1525
1526         if (adapter->max_sds_rings > 1)
1527                 qlcnic_config_rss(adapter, 1);
1528
1529         qlcnic_config_intr_coalesce(adapter);
1530
1531         if (netdev->features & NETIF_F_LRO)
1532                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1533
1534         qlcnic_napi_enable(adapter);
1535
1536         qlcnic_linkevent_request(adapter, 1);
1537
1538         adapter->ahw->reset_context = 0;
1539         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1540         return 0;
1541 }
1542
1543 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1544 {
1545         int err = 0;
1546
1547         rtnl_lock();
1548         if (netif_running(netdev))
1549                 err = __qlcnic_up(adapter, netdev);
1550         rtnl_unlock();
1551
1552         return err;
1553 }
1554
1555 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1556 {
1557         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1558                 return;
1559
1560         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1561                 return;
1562
1563         if (qlcnic_sriov_vf_check(adapter))
1564                 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1565         smp_mb();
1566         spin_lock(&adapter->tx_clean_lock);
1567         netif_carrier_off(netdev);
1568         adapter->ahw->linkup = 0;
1569         netif_tx_disable(netdev);
1570
1571         qlcnic_free_mac_list(adapter);
1572
1573         if (adapter->fhash.fnum)
1574                 qlcnic_delete_lb_filters(adapter);
1575
1576         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1577
1578         qlcnic_napi_disable(adapter);
1579
1580         qlcnic_fw_destroy_ctx(adapter);
1581         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1582
1583         qlcnic_reset_rx_buffers_list(adapter);
1584         qlcnic_release_tx_buffers(adapter);
1585         spin_unlock(&adapter->tx_clean_lock);
1586 }
1587
1588 /* Usage: During suspend and firmware recovery module */
1589
1590 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1591 {
1592         rtnl_lock();
1593         if (netif_running(netdev))
1594                 __qlcnic_down(adapter, netdev);
1595         rtnl_unlock();
1596
1597 }
1598
1599 int
1600 qlcnic_attach(struct qlcnic_adapter *adapter)
1601 {
1602         struct net_device *netdev = adapter->netdev;
1603         struct pci_dev *pdev = adapter->pdev;
1604         int err;
1605
1606         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1607                 return 0;
1608
1609         err = qlcnic_napi_add(adapter, netdev);
1610         if (err)
1611                 return err;
1612
1613         err = qlcnic_alloc_sw_resources(adapter);
1614         if (err) {
1615                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1616                 goto err_out_napi_del;
1617         }
1618
1619         err = qlcnic_alloc_hw_resources(adapter);
1620         if (err) {
1621                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1622                 goto err_out_free_sw;
1623         }
1624
1625         err = qlcnic_request_irq(adapter);
1626         if (err) {
1627                 dev_err(&pdev->dev, "failed to setup interrupt\n");
1628                 goto err_out_free_hw;
1629         }
1630
1631         qlcnic_create_sysfs_entries(adapter);
1632
1633         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1634         return 0;
1635
1636 err_out_free_hw:
1637         qlcnic_free_hw_resources(adapter);
1638 err_out_free_sw:
1639         qlcnic_free_sw_resources(adapter);
1640 err_out_napi_del:
1641         qlcnic_napi_del(adapter);
1642         return err;
1643 }
1644
1645 void qlcnic_detach(struct qlcnic_adapter *adapter)
1646 {
1647         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1648                 return;
1649
1650         qlcnic_remove_sysfs_entries(adapter);
1651
1652         qlcnic_free_hw_resources(adapter);
1653         qlcnic_release_rx_buffers(adapter);
1654         qlcnic_free_irq(adapter);
1655         qlcnic_napi_del(adapter);
1656         qlcnic_free_sw_resources(adapter);
1657
1658         adapter->is_up = 0;
1659 }
1660
1661 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1662 {
1663         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1664         struct qlcnic_host_sds_ring *sds_ring;
1665         int ring;
1666
1667         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1668         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1669                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1670                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1671                         qlcnic_disable_int(sds_ring);
1672                 }
1673         }
1674
1675         qlcnic_fw_destroy_ctx(adapter);
1676
1677         qlcnic_detach(adapter);
1678
1679         adapter->ahw->diag_test = 0;
1680         adapter->max_sds_rings = max_sds_rings;
1681
1682         if (qlcnic_attach(adapter))
1683                 goto out;
1684
1685         if (netif_running(netdev))
1686                 __qlcnic_up(adapter, netdev);
1687 out:
1688         netif_device_attach(netdev);
1689 }
1690
1691 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
1692 {
1693         struct qlcnic_hardware_context *ahw = adapter->ahw;
1694         int err = 0;
1695
1696         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
1697                                 GFP_KERNEL);
1698         if (!adapter->recv_ctx) {
1699                 err = -ENOMEM;
1700                 goto err_out;
1701         }
1702         /* Initialize interrupt coalesce parameters */
1703         ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1704         ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1705         ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1706         ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1707         if (qlcnic_83xx_check(adapter)) {
1708                 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1709                 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1710         }
1711         /* clear stats */
1712         memset(&adapter->stats, 0, sizeof(adapter->stats));
1713 err_out:
1714         return err;
1715 }
1716
1717 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
1718 {
1719         kfree(adapter->recv_ctx);
1720         adapter->recv_ctx = NULL;
1721
1722         if (adapter->ahw->fw_dump.tmpl_hdr) {
1723                 vfree(adapter->ahw->fw_dump.tmpl_hdr);
1724                 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1725         }
1726
1727         kfree(adapter->ahw->reset.buff);
1728         adapter->ahw->fw_dump.tmpl_hdr = NULL;
1729 }
1730
1731 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1732 {
1733         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1734         struct qlcnic_host_sds_ring *sds_ring;
1735         struct qlcnic_host_rds_ring *rds_ring;
1736         int ring;
1737         int ret;
1738
1739         netif_device_detach(netdev);
1740
1741         if (netif_running(netdev))
1742                 __qlcnic_down(adapter, netdev);
1743
1744         qlcnic_detach(adapter);
1745
1746         adapter->max_sds_rings = 1;
1747         adapter->ahw->diag_test = test;
1748         adapter->ahw->linkup = 0;
1749
1750         ret = qlcnic_attach(adapter);
1751         if (ret) {
1752                 netif_device_attach(netdev);
1753                 return ret;
1754         }
1755
1756         ret = qlcnic_fw_create_ctx(adapter);
1757         if (ret) {
1758                 qlcnic_detach(adapter);
1759                 netif_device_attach(netdev);
1760                 return ret;
1761         }
1762
1763         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1764                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1765                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1766         }
1767
1768         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1769                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1770                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1771                         qlcnic_enable_int(sds_ring);
1772                 }
1773         }
1774
1775         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
1776                 adapter->ahw->loopback_state = 0;
1777                 qlcnic_linkevent_request(adapter, 1);
1778         }
1779
1780         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1781
1782         return 0;
1783 }
1784
1785 /* Reset context in hardware only */
1786 static int
1787 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1788 {
1789         struct net_device *netdev = adapter->netdev;
1790
1791         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1792                 return -EBUSY;
1793
1794         netif_device_detach(netdev);
1795
1796         qlcnic_down(adapter, netdev);
1797
1798         qlcnic_up(adapter, netdev);
1799
1800         netif_device_attach(netdev);
1801
1802         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1803         dev_err(&adapter->pdev->dev, "%s:\n", __func__);
1804         return 0;
1805 }
1806
1807 int
1808 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1809 {
1810         int err = 0;
1811         struct net_device *netdev = adapter->netdev;
1812
1813         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1814                 return -EBUSY;
1815
1816         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1817
1818                 netif_device_detach(netdev);
1819
1820                 if (netif_running(netdev))
1821                         __qlcnic_down(adapter, netdev);
1822
1823                 qlcnic_detach(adapter);
1824
1825                 if (netif_running(netdev)) {
1826                         err = qlcnic_attach(adapter);
1827                         if (!err) {
1828                                 __qlcnic_up(adapter, netdev);
1829                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1830                         }
1831                 }
1832
1833                 netif_device_attach(netdev);
1834         }
1835
1836         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1837         return err;
1838 }
1839
1840 void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
1841 {
1842         struct qlcnic_hardware_context *ahw = adapter->ahw;
1843         u16 act_pci_fn = ahw->act_pci_func;
1844         u16 count;
1845
1846         ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
1847         if (act_pci_fn <= 2)
1848                 count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
1849                          act_pci_fn;
1850         else
1851                 count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
1852                          act_pci_fn;
1853         ahw->max_uc_count = count;
1854 }
1855
1856 int
1857 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
1858                     int pci_using_dac)
1859 {
1860         int err;
1861         struct pci_dev *pdev = adapter->pdev;
1862
1863         adapter->rx_csum = 1;
1864         adapter->ahw->mc_enabled = 0;
1865         qlcnic_set_mac_filter_count(adapter);
1866
1867         netdev->netdev_ops         = &qlcnic_netdev_ops;
1868         netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
1869
1870         qlcnic_change_mtu(netdev, netdev->mtu);
1871
1872         if (qlcnic_sriov_vf_check(adapter))
1873                 SET_ETHTOOL_OPS(netdev, &qlcnic_sriov_vf_ethtool_ops);
1874         else
1875                 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1876
1877         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
1878                              NETIF_F_IPV6_CSUM | NETIF_F_GRO |
1879                              NETIF_F_HW_VLAN_CTAG_RX);
1880         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1881                                   NETIF_F_IPV6_CSUM);
1882
1883         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
1884                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
1885                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
1886         }
1887
1888         if (pci_using_dac) {
1889                 netdev->features |= NETIF_F_HIGHDMA;
1890                 netdev->vlan_features |= NETIF_F_HIGHDMA;
1891         }
1892
1893         if (qlcnic_vlan_tx_check(adapter))
1894                 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
1895
1896         if (qlcnic_sriov_vf_check(adapter))
1897                 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
1898
1899         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1900                 netdev->features |= NETIF_F_LRO;
1901
1902         netdev->hw_features = netdev->features;
1903         netdev->priv_flags |= IFF_UNICAST_FLT;
1904         netdev->irq = adapter->msix_entries[0].vector;
1905
1906         err = register_netdev(netdev);
1907         if (err) {
1908                 dev_err(&pdev->dev, "failed to register net device\n");
1909                 return err;
1910         }
1911
1912         return 0;
1913 }
1914
1915 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
1916 {
1917         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1918                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1919                 *pci_using_dac = 1;
1920         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1921                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1922                 *pci_using_dac = 0;
1923         else {
1924                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1925                 return -EIO;
1926         }
1927
1928         return 0;
1929 }
1930
1931 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
1932 {
1933         int ring;
1934         struct qlcnic_host_tx_ring *tx_ring;
1935
1936         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1937                 tx_ring = &adapter->tx_ring[ring];
1938                 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
1939                         vfree(tx_ring->cmd_buf_arr);
1940                         tx_ring->cmd_buf_arr = NULL;
1941                 }
1942         }
1943         if (adapter->tx_ring != NULL)
1944                 kfree(adapter->tx_ring);
1945 }
1946
1947 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
1948                           struct net_device *netdev)
1949 {
1950         int ring, vector, index;
1951         struct qlcnic_host_tx_ring *tx_ring;
1952         struct qlcnic_cmd_buffer *cmd_buf_arr;
1953
1954         tx_ring = kcalloc(adapter->max_drv_tx_rings,
1955                           sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
1956         if (tx_ring == NULL)
1957                 return -ENOMEM;
1958
1959         adapter->tx_ring = tx_ring;
1960
1961         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1962                 tx_ring = &adapter->tx_ring[ring];
1963                 tx_ring->num_desc = adapter->num_txd;
1964                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
1965                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
1966                 if (cmd_buf_arr == NULL) {
1967                         qlcnic_free_tx_rings(adapter);
1968                         return -ENOMEM;
1969                 }
1970                 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
1971                 tx_ring->cmd_buf_arr = cmd_buf_arr;
1972         }
1973
1974         if (qlcnic_83xx_check(adapter)) {
1975                 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1976                         tx_ring = &adapter->tx_ring[ring];
1977                         tx_ring->adapter = adapter;
1978                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
1979                                 index = adapter->max_sds_rings + ring;
1980                                 vector = adapter->msix_entries[index].vector;
1981                                 tx_ring->irq = vector;
1982                         }
1983                 }
1984         }
1985         return 0;
1986 }
1987
1988 static int
1989 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1990 {
1991         struct net_device *netdev = NULL;
1992         struct qlcnic_adapter *adapter = NULL;
1993         struct qlcnic_hardware_context *ahw;
1994         int err, pci_using_dac = -1;
1995         u32 capab2;
1996         char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
1997
1998         if (pdev->is_virtfn)
1999                 return -ENODEV;
2000
2001         err = pci_enable_device(pdev);
2002         if (err)
2003                 return err;
2004
2005         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2006                 err = -ENODEV;
2007                 goto err_out_disable_pdev;
2008         }
2009
2010         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
2011         if (err)
2012                 goto err_out_disable_pdev;
2013
2014         err = pci_request_regions(pdev, qlcnic_driver_name);
2015         if (err)
2016                 goto err_out_disable_pdev;
2017
2018         pci_set_master(pdev);
2019         pci_enable_pcie_error_reporting(pdev);
2020
2021         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2022         if (!ahw) {
2023                 err = -ENOMEM;
2024                 goto err_out_free_res;
2025         }
2026
2027         switch (ent->device) {
2028         case PCI_DEVICE_ID_QLOGIC_QLE824X:
2029                 ahw->hw_ops = &qlcnic_hw_ops;
2030                 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2031                 break;
2032         case PCI_DEVICE_ID_QLOGIC_QLE834X:
2033                 qlcnic_83xx_register_map(ahw);
2034                 break;
2035         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2036                 qlcnic_sriov_vf_register_map(ahw);
2037                 break;
2038         default:
2039                 goto err_out_free_hw_res;
2040         }
2041
2042         err = qlcnic_setup_pci_map(pdev, ahw);
2043         if (err)
2044                 goto err_out_free_hw_res;
2045
2046         netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
2047         if (!netdev) {
2048                 err = -ENOMEM;
2049                 goto err_out_iounmap;
2050         }
2051
2052         SET_NETDEV_DEV(netdev, &pdev->dev);
2053
2054         adapter = netdev_priv(netdev);
2055         adapter->netdev  = netdev;
2056         adapter->pdev    = pdev;
2057         adapter->ahw = ahw;
2058
2059         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2060         if (adapter->qlcnic_wq == NULL) {
2061                 err = -ENOMEM;
2062                 dev_err(&pdev->dev, "Failed to create workqueue\n");
2063                 goto err_out_free_netdev;
2064         }
2065
2066         err = qlcnic_alloc_adapter_resources(adapter);
2067         if (err)
2068                 goto err_out_free_netdev;
2069
2070         adapter->dev_rst_time = jiffies;
2071         adapter->ahw->revision_id = pdev->revision;
2072         if (qlcnic_mac_learn == FDB_MAC_LEARN)
2073                 adapter->fdb_mac_learn = true;
2074         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2075                 adapter->drv_mac_learn = true;
2076         adapter->max_drv_tx_rings = 1;
2077
2078         rwlock_init(&adapter->ahw->crb_lock);
2079         mutex_init(&adapter->ahw->mem_lock);
2080
2081         spin_lock_init(&adapter->tx_clean_lock);
2082         INIT_LIST_HEAD(&adapter->mac_list);
2083
2084         if (qlcnic_82xx_check(adapter)) {
2085                 qlcnic_check_vf(adapter, ent);
2086                 adapter->portnum = adapter->ahw->pci_func;
2087                 err = qlcnic_start_firmware(adapter);
2088                 if (err) {
2089                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
2090                         goto err_out_free_hw;
2091                 }
2092
2093                 err = qlcnic_setup_idc_param(adapter);
2094                 if (err)
2095                         goto err_out_free_hw;
2096
2097                 adapter->flags |= QLCNIC_NEED_FLR;
2098         } else if (qlcnic_83xx_check(adapter)) {
2099                 qlcnic_83xx_check_vf(adapter, ent);
2100                 adapter->portnum = adapter->ahw->pci_func;
2101                 err = qlcnic_83xx_init(adapter, pci_using_dac);
2102                 if (err) {
2103                         dev_err(&pdev->dev, "%s: failed\n", __func__);
2104                         goto err_out_free_hw;
2105                 }
2106                 if (qlcnic_sriov_vf_check(adapter))
2107                         return 0;
2108         } else {
2109                 dev_err(&pdev->dev,
2110                         "%s: failed. Please Reboot\n", __func__);
2111                 goto err_out_free_hw;
2112         }
2113
2114         if (qlcnic_read_mac_addr(adapter))
2115                 dev_warn(&pdev->dev, "failed to read mac addr\n");
2116
2117         if (adapter->portnum == 0) {
2118                 qlcnic_get_board_name(adapter, board_name);
2119
2120                 pr_info("%s: %s Board Chip rev 0x%x\n",
2121                         module_name(THIS_MODULE),
2122                         board_name, adapter->ahw->revision_id);
2123         }
2124
2125         if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2126             !!qlcnic_use_msi)
2127                 dev_warn(&pdev->dev,
2128                          "83xx adapter do not support MSI interrupts\n");
2129
2130         err = qlcnic_setup_intr(adapter, 0);
2131         if (err) {
2132                 dev_err(&pdev->dev, "Failed to setup interrupt\n");
2133                 goto err_out_disable_msi;
2134         }
2135
2136         if (qlcnic_83xx_check(adapter)) {
2137                 err = qlcnic_83xx_setup_mbx_intr(adapter);
2138                 if (err)
2139                         goto err_out_disable_msi;
2140         }
2141
2142         err = qlcnic_get_act_pci_func(adapter);
2143         if (err)
2144                 goto err_out_disable_mbx_intr;
2145
2146         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2147         if (err)
2148                 goto err_out_disable_mbx_intr;
2149
2150         if (qlcnic_82xx_check(adapter)) {
2151                 if (ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
2152                         capab2 = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
2153                         if (capab2 & QLCNIC_FW_CAPABILITY_2_OCBB)
2154                                 qlcnic_fw_cmd_set_drv_version(adapter);
2155                 }
2156         }
2157
2158         pci_set_drvdata(pdev, adapter);
2159
2160         if (qlcnic_82xx_check(adapter))
2161                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2162                                      FW_POLL_DELAY);
2163
2164         switch (adapter->ahw->port_type) {
2165         case QLCNIC_GBE:
2166                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2167                                 adapter->netdev->name);
2168                 break;
2169         case QLCNIC_XGBE:
2170                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2171                                 adapter->netdev->name);
2172                 break;
2173         }
2174
2175         if (adapter->drv_mac_learn)
2176                 qlcnic_alloc_lb_filters_mem(adapter);
2177
2178         qlcnic_add_sysfs(adapter);
2179
2180         return 0;
2181
2182 err_out_disable_mbx_intr:
2183         if (qlcnic_83xx_check(adapter))
2184                 qlcnic_83xx_free_mbx_intr(adapter);
2185
2186 err_out_disable_msi:
2187         qlcnic_teardown_intr(adapter);
2188         qlcnic_cancel_idc_work(adapter);
2189         qlcnic_clr_all_drv_state(adapter, 0);
2190
2191 err_out_free_hw:
2192         qlcnic_free_adapter_resources(adapter);
2193
2194 err_out_free_netdev:
2195         free_netdev(netdev);
2196
2197 err_out_iounmap:
2198         qlcnic_cleanup_pci_map(ahw);
2199
2200 err_out_free_hw_res:
2201         kfree(ahw);
2202
2203 err_out_free_res:
2204         pci_release_regions(pdev);
2205
2206 err_out_disable_pdev:
2207         pci_set_drvdata(pdev, NULL);
2208         pci_disable_device(pdev);
2209         return err;
2210 }
2211
2212 static void qlcnic_remove(struct pci_dev *pdev)
2213 {
2214         struct qlcnic_adapter *adapter;
2215         struct net_device *netdev;
2216         struct qlcnic_hardware_context *ahw;
2217
2218         adapter = pci_get_drvdata(pdev);
2219         if (adapter == NULL)
2220                 return;
2221
2222         netdev = adapter->netdev;
2223         qlcnic_sriov_pf_disable(adapter);
2224
2225         qlcnic_cancel_idc_work(adapter);
2226         ahw = adapter->ahw;
2227
2228         unregister_netdev(netdev);
2229         qlcnic_sriov_cleanup(adapter);
2230
2231         if (qlcnic_83xx_check(adapter)) {
2232                 qlcnic_83xx_free_mbx_intr(adapter);
2233                 qlcnic_83xx_register_nic_idc_func(adapter, 0);
2234                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2235         }
2236
2237         qlcnic_detach(adapter);
2238
2239         if (adapter->npars != NULL)
2240                 kfree(adapter->npars);
2241         if (adapter->eswitch != NULL)
2242                 kfree(adapter->eswitch);
2243
2244         if (qlcnic_82xx_check(adapter))
2245                 qlcnic_clr_all_drv_state(adapter, 0);
2246
2247         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2248
2249         qlcnic_free_lb_filters_mem(adapter);
2250
2251         qlcnic_teardown_intr(adapter);
2252
2253         qlcnic_remove_sysfs(adapter);
2254
2255         qlcnic_cleanup_pci_map(adapter->ahw);
2256
2257         qlcnic_release_firmware(adapter);
2258
2259         pci_disable_pcie_error_reporting(pdev);
2260         pci_release_regions(pdev);
2261         pci_disable_device(pdev);
2262         pci_set_drvdata(pdev, NULL);
2263
2264         if (adapter->qlcnic_wq) {
2265                 destroy_workqueue(adapter->qlcnic_wq);
2266                 adapter->qlcnic_wq = NULL;
2267         }
2268         qlcnic_free_adapter_resources(adapter);
2269         kfree(ahw);
2270         free_netdev(netdev);
2271 }
2272 static int __qlcnic_shutdown(struct pci_dev *pdev)
2273 {
2274         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2275         struct net_device *netdev = adapter->netdev;
2276         int retval;
2277
2278         netif_device_detach(netdev);
2279
2280         qlcnic_cancel_idc_work(adapter);
2281
2282         if (netif_running(netdev))
2283                 qlcnic_down(adapter, netdev);
2284
2285         qlcnic_sriov_cleanup(adapter);
2286         if (qlcnic_82xx_check(adapter))
2287                 qlcnic_clr_all_drv_state(adapter, 0);
2288
2289         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2290
2291         retval = pci_save_state(pdev);
2292         if (retval)
2293                 return retval;
2294         if (qlcnic_82xx_check(adapter)) {
2295                 if (qlcnic_wol_supported(adapter)) {
2296                         pci_enable_wake(pdev, PCI_D3cold, 1);
2297                         pci_enable_wake(pdev, PCI_D3hot, 1);
2298                 }
2299         }
2300
2301         return 0;
2302 }
2303
2304 static void qlcnic_shutdown(struct pci_dev *pdev)
2305 {
2306         if (__qlcnic_shutdown(pdev))
2307                 return;
2308
2309         pci_disable_device(pdev);
2310 }
2311
2312 #ifdef CONFIG_PM
2313 static int
2314 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2315 {
2316         int retval;
2317
2318         retval = __qlcnic_shutdown(pdev);
2319         if (retval)
2320                 return retval;
2321
2322         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2323         return 0;
2324 }
2325
2326 static int
2327 qlcnic_resume(struct pci_dev *pdev)
2328 {
2329         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2330         struct net_device *netdev = adapter->netdev;
2331         int err;
2332
2333         err = pci_enable_device(pdev);
2334         if (err)
2335                 return err;
2336
2337         pci_set_power_state(pdev, PCI_D0);
2338         pci_set_master(pdev);
2339         pci_restore_state(pdev);
2340
2341         err = qlcnic_start_firmware(adapter);
2342         if (err) {
2343                 dev_err(&pdev->dev, "failed to start firmware\n");
2344                 return err;
2345         }
2346
2347         if (netif_running(netdev)) {
2348                 err = qlcnic_up(adapter, netdev);
2349                 if (err)
2350                         goto done;
2351
2352                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2353         }
2354 done:
2355         netif_device_attach(netdev);
2356         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
2357         return 0;
2358 }
2359 #endif
2360
2361 static int qlcnic_open(struct net_device *netdev)
2362 {
2363         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2364         int err;
2365
2366         netif_carrier_off(netdev);
2367
2368         err = qlcnic_attach(adapter);
2369         if (err)
2370                 return err;
2371
2372         err = __qlcnic_up(adapter, netdev);
2373         if (err)
2374                 goto err_out;
2375
2376         netif_start_queue(netdev);
2377
2378         return 0;
2379
2380 err_out:
2381         qlcnic_detach(adapter);
2382         return err;
2383 }
2384
2385 /*
2386  * qlcnic_close - Disables a network interface entry point
2387  */
2388 static int qlcnic_close(struct net_device *netdev)
2389 {
2390         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2391
2392         __qlcnic_down(adapter, netdev);
2393
2394         return 0;
2395 }
2396
2397 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2398 {
2399         void *head;
2400         int i;
2401         struct net_device *netdev = adapter->netdev;
2402         u32 filter_size = 0;
2403         u16 act_pci_func = 0;
2404
2405         if (adapter->fhash.fmax && adapter->fhash.fhead)
2406                 return;
2407
2408         act_pci_func = adapter->ahw->act_pci_func;
2409         spin_lock_init(&adapter->mac_learn_lock);
2410         spin_lock_init(&adapter->rx_mac_learn_lock);
2411
2412         if (qlcnic_82xx_check(adapter)) {
2413                 filter_size = QLCNIC_LB_MAX_FILTERS;
2414                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2415         } else {
2416                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2417                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2418         }
2419
2420         head = kcalloc(adapter->fhash.fbucket_size,
2421                        sizeof(struct hlist_head), GFP_ATOMIC);
2422
2423         if (!head)
2424                 return;
2425
2426         adapter->fhash.fmax = (filter_size / act_pci_func);
2427         adapter->fhash.fhead = head;
2428
2429         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2430                     act_pci_func, adapter->fhash.fmax);
2431
2432         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2433                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2434
2435         adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2436
2437         head = kcalloc(adapter->rx_fhash.fbucket_size,
2438                        sizeof(struct hlist_head), GFP_ATOMIC);
2439
2440         if (!head)
2441                 return;
2442
2443         adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2444         adapter->rx_fhash.fhead = head;
2445
2446         for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2447                 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2448 }
2449
2450 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2451 {
2452         if (adapter->fhash.fmax && adapter->fhash.fhead)
2453                 kfree(adapter->fhash.fhead);
2454
2455         adapter->fhash.fhead = NULL;
2456         adapter->fhash.fmax = 0;
2457
2458         if (adapter->rx_fhash.fmax && adapter->rx_fhash.fhead)
2459                 kfree(adapter->rx_fhash.fhead);
2460
2461         adapter->rx_fhash.fmax = 0;
2462         adapter->rx_fhash.fhead = NULL;
2463 }
2464
2465 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2466 {
2467         struct net_device *netdev = adapter->netdev;
2468         u32 temp_state, temp_val, temp = 0;
2469         int rv = 0;
2470
2471         if (qlcnic_83xx_check(adapter))
2472                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2473
2474         if (qlcnic_82xx_check(adapter))
2475                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2476
2477         temp_state = qlcnic_get_temp_state(temp);
2478         temp_val = qlcnic_get_temp_val(temp);
2479
2480         if (temp_state == QLCNIC_TEMP_PANIC) {
2481                 dev_err(&netdev->dev,
2482                        "Device temperature %d degrees C exceeds"
2483                        " maximum allowed. Hardware has been shut down.\n",
2484                        temp_val);
2485                 rv = 1;
2486         } else if (temp_state == QLCNIC_TEMP_WARN) {
2487                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2488                         dev_err(&netdev->dev,
2489                                "Device temperature %d degrees C "
2490                                "exceeds operating range."
2491                                " Immediate action needed.\n",
2492                                temp_val);
2493                 }
2494         } else {
2495                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2496                         dev_info(&netdev->dev,
2497                                "Device temperature is now %d degrees C"
2498                                " in normal range.\n", temp_val);
2499                 }
2500         }
2501         adapter->ahw->temp = temp_state;
2502         return rv;
2503 }
2504
2505 static void qlcnic_tx_timeout(struct net_device *netdev)
2506 {
2507         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2508
2509         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2510                 return;
2511
2512         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS) {
2513                 netdev_info(netdev, "Tx timeout, reset the adapter.\n");
2514                 if (qlcnic_82xx_check(adapter))
2515                         adapter->need_fw_reset = 1;
2516                 else if (qlcnic_83xx_check(adapter))
2517                         qlcnic_83xx_idc_request_reset(adapter,
2518                                                       QLCNIC_FORCE_FW_DUMP_KEY);
2519         } else {
2520                 netdev_info(netdev, "Tx timeout, reset adapter context.\n");
2521                 adapter->ahw->reset_context = 1;
2522         }
2523 }
2524
2525 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2526 {
2527         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2528         struct net_device_stats *stats = &netdev->stats;
2529
2530         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2531         stats->tx_packets = adapter->stats.xmitfinished;
2532         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2533         stats->tx_bytes = adapter->stats.txbytes;
2534         stats->rx_dropped = adapter->stats.rxdropped;
2535         stats->tx_dropped = adapter->stats.txdropped;
2536
2537         return stats;
2538 }
2539
2540 irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
2541 {
2542         u32 status;
2543
2544         status = readl(adapter->isr_int_vec);
2545
2546         if (!(status & adapter->ahw->int_vec_bit))
2547                 return IRQ_NONE;
2548
2549         /* check interrupt state machine, to be sure */
2550         status = readl(adapter->crb_int_state_reg);
2551         if (!ISR_LEGACY_INT_TRIGGERED(status))
2552                 return IRQ_NONE;
2553
2554         writel(0xffffffff, adapter->tgt_status_reg);
2555         /* read twice to ensure write is flushed */
2556         readl(adapter->isr_int_vec);
2557         readl(adapter->isr_int_vec);
2558
2559         return IRQ_HANDLED;
2560 }
2561
2562 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2563 {
2564         struct qlcnic_host_sds_ring *sds_ring = data;
2565         struct qlcnic_adapter *adapter = sds_ring->adapter;
2566
2567         if (adapter->flags & QLCNIC_MSIX_ENABLED)
2568                 goto done;
2569         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2570                 writel(0xffffffff, adapter->tgt_status_reg);
2571                 goto done;
2572         }
2573
2574         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2575                 return IRQ_NONE;
2576
2577 done:
2578         adapter->ahw->diag_cnt++;
2579         qlcnic_enable_int(sds_ring);
2580         return IRQ_HANDLED;
2581 }
2582
2583 static irqreturn_t qlcnic_intr(int irq, void *data)
2584 {
2585         struct qlcnic_host_sds_ring *sds_ring = data;
2586         struct qlcnic_adapter *adapter = sds_ring->adapter;
2587
2588         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2589                 return IRQ_NONE;
2590
2591         napi_schedule(&sds_ring->napi);
2592
2593         return IRQ_HANDLED;
2594 }
2595
2596 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2597 {
2598         struct qlcnic_host_sds_ring *sds_ring = data;
2599         struct qlcnic_adapter *adapter = sds_ring->adapter;
2600
2601         /* clear interrupt */
2602         writel(0xffffffff, adapter->tgt_status_reg);
2603
2604         napi_schedule(&sds_ring->napi);
2605         return IRQ_HANDLED;
2606 }
2607
2608 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2609 {
2610         struct qlcnic_host_sds_ring *sds_ring = data;
2611
2612         napi_schedule(&sds_ring->napi);
2613         return IRQ_HANDLED;
2614 }
2615
2616 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
2617 {
2618         struct qlcnic_host_tx_ring *tx_ring = data;
2619
2620         napi_schedule(&tx_ring->napi);
2621         return IRQ_HANDLED;
2622 }
2623
2624 #ifdef CONFIG_NET_POLL_CONTROLLER
2625 static void qlcnic_poll_controller(struct net_device *netdev)
2626 {
2627         int ring;
2628         struct qlcnic_host_sds_ring *sds_ring;
2629         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2630         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2631
2632         disable_irq(adapter->irq);
2633         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2634                 sds_ring = &recv_ctx->sds_rings[ring];
2635                 qlcnic_intr(adapter->irq, sds_ring);
2636         }
2637         enable_irq(adapter->irq);
2638 }
2639 #endif
2640
2641 static void
2642 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2643 {
2644         u32 val;
2645
2646         val = adapter->portnum & 0xf;
2647         val |= encoding << 7;
2648         val |= (jiffies - adapter->dev_rst_time) << 8;
2649
2650         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2651         adapter->dev_rst_time = jiffies;
2652 }
2653
2654 static int
2655 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2656 {
2657         u32  val;
2658
2659         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2660                         state != QLCNIC_DEV_NEED_QUISCENT);
2661
2662         if (qlcnic_api_lock(adapter))
2663                 return -EIO;
2664
2665         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2666
2667         if (state == QLCNIC_DEV_NEED_RESET)
2668                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2669         else if (state == QLCNIC_DEV_NEED_QUISCENT)
2670                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2671
2672         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2673
2674         qlcnic_api_unlock(adapter);
2675
2676         return 0;
2677 }
2678
2679 static int
2680 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2681 {
2682         u32  val;
2683
2684         if (qlcnic_api_lock(adapter))
2685                 return -EBUSY;
2686
2687         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2688         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2689         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2690
2691         qlcnic_api_unlock(adapter);
2692
2693         return 0;
2694 }
2695
2696 static void
2697 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2698 {
2699         u32  val;
2700
2701         if (qlcnic_api_lock(adapter))
2702                 goto err;
2703
2704         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2705         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2706         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2707
2708         if (failed) {
2709                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2710                                     QLCNIC_DEV_FAILED);
2711                 dev_info(&adapter->pdev->dev,
2712                                 "Device state set to Failed. Please Reboot\n");
2713         } else if (!(val & 0x11111111))
2714                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2715                                     QLCNIC_DEV_COLD);
2716
2717         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2718         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2719         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2720
2721         qlcnic_api_unlock(adapter);
2722 err:
2723         adapter->fw_fail_cnt = 0;
2724         adapter->flags &= ~QLCNIC_FW_HANG;
2725         clear_bit(__QLCNIC_START_FW, &adapter->state);
2726         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2727 }
2728
2729 /* Grab api lock, before checking state */
2730 static int
2731 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2732 {
2733         int act, state, active_mask;
2734         struct qlcnic_hardware_context *ahw = adapter->ahw;
2735
2736         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2737         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2738
2739         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
2740                 active_mask = (~(1 << (ahw->pci_func * 4)));
2741                 act = act & active_mask;
2742         }
2743
2744         if (((state & 0x11111111) == (act & 0x11111111)) ||
2745                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2746                 return 0;
2747         else
2748                 return 1;
2749 }
2750
2751 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2752 {
2753         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2754
2755         if (val != QLCNIC_DRV_IDC_VER) {
2756                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2757                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2758         }
2759
2760         return 0;
2761 }
2762
2763 static int
2764 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2765 {
2766         u32 val, prev_state;
2767         u8 dev_init_timeo = adapter->dev_init_timeo;
2768         u8 portnum = adapter->portnum;
2769         u8 ret;
2770
2771         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2772                 return 1;
2773
2774         if (qlcnic_api_lock(adapter))
2775                 return -1;
2776
2777         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2778         if (!(val & (1 << (portnum * 4)))) {
2779                 QLC_DEV_SET_REF_CNT(val, portnum);
2780                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2781         }
2782
2783         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2784         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2785
2786         switch (prev_state) {
2787         case QLCNIC_DEV_COLD:
2788                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2789                                     QLCNIC_DEV_INITIALIZING);
2790                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
2791                                     QLCNIC_DRV_IDC_VER);
2792                 qlcnic_idc_debug_info(adapter, 0);
2793                 qlcnic_api_unlock(adapter);
2794                 return 1;
2795
2796         case QLCNIC_DEV_READY:
2797                 ret = qlcnic_check_idc_ver(adapter);
2798                 qlcnic_api_unlock(adapter);
2799                 return ret;
2800
2801         case QLCNIC_DEV_NEED_RESET:
2802                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2803                 QLC_DEV_SET_RST_RDY(val, portnum);
2804                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2805                 break;
2806
2807         case QLCNIC_DEV_NEED_QUISCENT:
2808                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2809                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
2810                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2811                 break;
2812
2813         case QLCNIC_DEV_FAILED:
2814                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
2815                 qlcnic_api_unlock(adapter);
2816                 return -1;
2817
2818         case QLCNIC_DEV_INITIALIZING:
2819         case QLCNIC_DEV_QUISCENT:
2820                 break;
2821         }
2822
2823         qlcnic_api_unlock(adapter);
2824
2825         do {
2826                 msleep(1000);
2827                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2828
2829                 if (prev_state == QLCNIC_DEV_QUISCENT)
2830                         continue;
2831         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
2832
2833         if (!dev_init_timeo) {
2834                 dev_err(&adapter->pdev->dev,
2835                         "Waiting for device to initialize timeout\n");
2836                 return -1;
2837         }
2838
2839         if (qlcnic_api_lock(adapter))
2840                 return -1;
2841
2842         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2843         QLC_DEV_CLR_RST_QSCNT(val, portnum);
2844         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2845
2846         ret = qlcnic_check_idc_ver(adapter);
2847         qlcnic_api_unlock(adapter);
2848
2849         return ret;
2850 }
2851
2852 static void
2853 qlcnic_fwinit_work(struct work_struct *work)
2854 {
2855         struct qlcnic_adapter *adapter = container_of(work,
2856                         struct qlcnic_adapter, fw_work.work);
2857         u32 dev_state = 0xf;
2858         u32 val;
2859
2860         if (qlcnic_api_lock(adapter))
2861                 goto err_ret;
2862
2863         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2864         if (dev_state == QLCNIC_DEV_QUISCENT ||
2865             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2866                 qlcnic_api_unlock(adapter);
2867                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2868                                                 FW_POLL_DELAY * 2);
2869                 return;
2870         }
2871
2872         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
2873                 qlcnic_api_unlock(adapter);
2874                 goto wait_npar;
2875         }
2876
2877         if (dev_state == QLCNIC_DEV_INITIALIZING ||
2878             dev_state == QLCNIC_DEV_READY) {
2879                 dev_info(&adapter->pdev->dev, "Detected state change from "
2880                                 "DEV_NEED_RESET, skipping ack check\n");
2881                 goto skip_ack_check;
2882         }
2883
2884         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2885                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2886                                         adapter->reset_ack_timeo);
2887                 goto skip_ack_check;
2888         }
2889
2890         if (!qlcnic_check_drv_state(adapter)) {
2891 skip_ack_check:
2892                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2893
2894                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2895                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2896                                             QLCNIC_DEV_INITIALIZING);
2897                         set_bit(__QLCNIC_START_FW, &adapter->state);
2898                         QLCDB(adapter, DRV, "Restarting fw\n");
2899                         qlcnic_idc_debug_info(adapter, 0);
2900                         val = QLC_SHARED_REG_RD32(adapter,
2901                                                   QLCNIC_CRB_DRV_STATE);
2902                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2903                         QLC_SHARED_REG_WR32(adapter,
2904                                             QLCNIC_CRB_DRV_STATE, val);
2905                 }
2906
2907                 qlcnic_api_unlock(adapter);
2908
2909                 rtnl_lock();
2910                 if (adapter->ahw->fw_dump.enable &&
2911                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2912                         QLCDB(adapter, DRV, "Take FW dump\n");
2913                         qlcnic_dump_fw(adapter);
2914                         adapter->flags |= QLCNIC_FW_HANG;
2915                 }
2916                 rtnl_unlock();
2917
2918                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
2919                 if (!adapter->nic_ops->start_firmware(adapter)) {
2920                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2921                         adapter->fw_wait_cnt = 0;
2922                         return;
2923                 }
2924                 goto err_ret;
2925         }
2926
2927         qlcnic_api_unlock(adapter);
2928
2929 wait_npar:
2930         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2931         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
2932
2933         switch (dev_state) {
2934         case QLCNIC_DEV_READY:
2935                 if (!qlcnic_start_firmware(adapter)) {
2936                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2937                         adapter->fw_wait_cnt = 0;
2938                         return;
2939                 }
2940         case QLCNIC_DEV_FAILED:
2941                 break;
2942         default:
2943                 qlcnic_schedule_work(adapter,
2944                         qlcnic_fwinit_work, FW_POLL_DELAY);
2945                 return;
2946         }
2947
2948 err_ret:
2949         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2950                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
2951         netif_device_attach(adapter->netdev);
2952         qlcnic_clr_all_drv_state(adapter, 0);
2953 }
2954
2955 static void
2956 qlcnic_detach_work(struct work_struct *work)
2957 {
2958         struct qlcnic_adapter *adapter = container_of(work,
2959                         struct qlcnic_adapter, fw_work.work);
2960         struct net_device *netdev = adapter->netdev;
2961         u32 status;
2962
2963         netif_device_detach(netdev);
2964
2965         /* Dont grab rtnl lock during Quiscent mode */
2966         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2967                 if (netif_running(netdev))
2968                         __qlcnic_down(adapter, netdev);
2969         } else
2970                 qlcnic_down(adapter, netdev);
2971
2972         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2973
2974         if (status & QLCNIC_RCODE_FATAL_ERROR) {
2975                 dev_err(&adapter->pdev->dev,
2976                         "Detaching the device: peg halt status1=0x%x\n",
2977                                         status);
2978
2979                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
2980                         dev_err(&adapter->pdev->dev,
2981                         "On board active cooling fan failed. "
2982                                 "Device has been halted.\n");
2983                         dev_err(&adapter->pdev->dev,
2984                                 "Replace the adapter.\n");
2985                 }
2986
2987                 goto err_ret;
2988         }
2989
2990         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
2991                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
2992                         adapter->ahw->temp);
2993                 goto err_ret;
2994         }
2995
2996         /* Dont ack if this instance is the reset owner */
2997         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2998                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
2999                         dev_err(&adapter->pdev->dev,
3000                                 "Failed to set driver state,"
3001                                         "detaching the device.\n");
3002                         goto err_ret;
3003                 }
3004         }
3005
3006         adapter->fw_wait_cnt = 0;
3007
3008         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3009
3010         return;
3011
3012 err_ret:
3013         netif_device_attach(netdev);
3014         qlcnic_clr_all_drv_state(adapter, 1);
3015 }
3016
3017 /*Transit NPAR state to NON Operational */
3018 static void
3019 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3020 {
3021         u32 state;
3022
3023         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3024         if (state == QLCNIC_DEV_NPAR_NON_OPER)
3025                 return;
3026
3027         if (qlcnic_api_lock(adapter))
3028                 return;
3029         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3030                             QLCNIC_DEV_NPAR_NON_OPER);
3031         qlcnic_api_unlock(adapter);
3032 }
3033
3034 void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter, u32 key)
3035 {
3036         u32 state, xg_val = 0, gb_val = 0;
3037
3038         qlcnic_xg_set_xg0_mask(xg_val);
3039         qlcnic_xg_set_xg1_mask(xg_val);
3040         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3041         qlcnic_gb_set_gb0_mask(gb_val);
3042         qlcnic_gb_set_gb1_mask(gb_val);
3043         qlcnic_gb_set_gb2_mask(gb_val);
3044         qlcnic_gb_set_gb3_mask(gb_val);
3045         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3046         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3047                                 " on all ports\n");
3048         adapter->need_fw_reset = 1;
3049
3050         if (qlcnic_api_lock(adapter))
3051                 return;
3052
3053         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3054
3055         if (state == QLCNIC_DEV_READY) {
3056                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3057                                     QLCNIC_DEV_NEED_RESET);
3058                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3059                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3060                 qlcnic_idc_debug_info(adapter, 0);
3061         }
3062
3063         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3064                             QLCNIC_DEV_NPAR_NON_OPER);
3065         qlcnic_api_unlock(adapter);
3066 }
3067
3068 /* Transit to NPAR READY state from NPAR NOT READY state */
3069 static void
3070 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3071 {
3072         if (qlcnic_api_lock(adapter))
3073                 return;
3074
3075         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3076                             QLCNIC_DEV_NPAR_OPER);
3077         QLCDB(adapter, DRV, "NPAR operational state set\n");
3078
3079         qlcnic_api_unlock(adapter);
3080 }
3081
3082 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3083                           work_func_t func, int delay)
3084 {
3085         if (test_bit(__QLCNIC_AER, &adapter->state))
3086                 return;
3087
3088         INIT_DELAYED_WORK(&adapter->fw_work, func);
3089         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3090                            round_jiffies_relative(delay));
3091 }
3092
3093 static void
3094 qlcnic_attach_work(struct work_struct *work)
3095 {
3096         struct qlcnic_adapter *adapter = container_of(work,
3097                                 struct qlcnic_adapter, fw_work.work);
3098         struct net_device *netdev = adapter->netdev;
3099         u32 npar_state;
3100
3101         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3102                 npar_state = QLC_SHARED_REG_RD32(adapter,
3103                                                  QLCNIC_CRB_DEV_NPAR_STATE);
3104                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3105                         qlcnic_clr_all_drv_state(adapter, 0);
3106                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3107                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
3108                                                         FW_POLL_DELAY);
3109                 else
3110                         goto attach;
3111                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3112                 return;
3113         }
3114 attach:
3115         if (netif_running(netdev)) {
3116                 if (qlcnic_up(adapter, netdev))
3117                         goto done;
3118
3119                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3120         }
3121
3122 done:
3123         netif_device_attach(netdev);
3124         adapter->fw_fail_cnt = 0;
3125         adapter->flags &= ~QLCNIC_FW_HANG;
3126         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3127
3128         if (!qlcnic_clr_drv_state(adapter))
3129                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3130                                                         FW_POLL_DELAY);
3131 }
3132
3133 static int
3134 qlcnic_check_health(struct qlcnic_adapter *adapter)
3135 {
3136         u32 state = 0, heartbeat;
3137         u32 peg_status;
3138
3139         if (qlcnic_check_temp(adapter))
3140                 goto detach;
3141
3142         if (adapter->need_fw_reset)
3143                 qlcnic_dev_request_reset(adapter, 0);
3144
3145         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3146         if (state == QLCNIC_DEV_NEED_RESET) {
3147                 qlcnic_set_npar_non_operational(adapter);
3148                 adapter->need_fw_reset = 1;
3149         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3150                 goto detach;
3151
3152         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3153         if (heartbeat != adapter->heartbeat) {
3154                 adapter->heartbeat = heartbeat;
3155                 adapter->fw_fail_cnt = 0;
3156                 if (adapter->need_fw_reset)
3157                         goto detach;
3158
3159                 if (adapter->ahw->reset_context && qlcnic_auto_fw_reset)
3160                         qlcnic_reset_hw_context(adapter);
3161
3162                 return 0;
3163         }
3164
3165         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3166                 return 0;
3167
3168         adapter->flags |= QLCNIC_FW_HANG;
3169
3170         qlcnic_dev_request_reset(adapter, 0);
3171
3172         if (qlcnic_auto_fw_reset)
3173                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3174
3175         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3176         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3177         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3178                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3179                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3180                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3181                         "PEG_NET_4_PC: 0x%x\n",
3182                         peg_status,
3183                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3184                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c),
3185                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c),
3186                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c),
3187                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c),
3188                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c));
3189         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3190                 dev_err(&adapter->pdev->dev,
3191                         "Firmware aborted with error code 0x00006700. "
3192                                 "Device is being reset.\n");
3193 detach:
3194         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3195                 QLCNIC_DEV_NEED_RESET;
3196
3197         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3198                                                       &adapter->state)) {
3199
3200                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3201                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3202         }
3203
3204         return 1;
3205 }
3206
3207 static void
3208 qlcnic_fw_poll_work(struct work_struct *work)
3209 {
3210         struct qlcnic_adapter *adapter = container_of(work,
3211                                 struct qlcnic_adapter, fw_work.work);
3212
3213         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3214                 goto reschedule;
3215
3216
3217         if (qlcnic_check_health(adapter))
3218                 return;
3219
3220         if (adapter->fhash.fnum)
3221                 qlcnic_prune_lb_filters(adapter);
3222
3223 reschedule:
3224         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3225 }
3226
3227 static int qlcnic_is_first_func(struct pci_dev *pdev)
3228 {
3229         struct pci_dev *oth_pdev;
3230         int val = pdev->devfn;
3231
3232         while (val-- > 0) {
3233                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3234                         (pdev->bus), pdev->bus->number,
3235                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3236                 if (!oth_pdev)
3237                         continue;
3238
3239                 if (oth_pdev->current_state != PCI_D3cold) {
3240                         pci_dev_put(oth_pdev);
3241                         return 0;
3242                 }
3243                 pci_dev_put(oth_pdev);
3244         }
3245         return 1;
3246 }
3247
3248 static int qlcnic_attach_func(struct pci_dev *pdev)
3249 {
3250         int err, first_func;
3251         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3252         struct net_device *netdev = adapter->netdev;
3253
3254         pdev->error_state = pci_channel_io_normal;
3255
3256         err = pci_enable_device(pdev);
3257         if (err)
3258                 return err;
3259
3260         pci_set_master(pdev);
3261         pci_restore_state(pdev);
3262
3263         first_func = qlcnic_is_first_func(pdev);
3264
3265         if (qlcnic_api_lock(adapter))
3266                 return -EINVAL;
3267
3268         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3269                 adapter->need_fw_reset = 1;
3270                 set_bit(__QLCNIC_START_FW, &adapter->state);
3271                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3272                                     QLCNIC_DEV_INITIALIZING);
3273                 QLCDB(adapter, DRV, "Restarting fw\n");
3274         }
3275         qlcnic_api_unlock(adapter);
3276
3277         err = qlcnic_start_firmware(adapter);
3278         if (err)
3279                 return err;
3280
3281         qlcnic_clr_drv_state(adapter);
3282         kfree(adapter->msix_entries);
3283         adapter->msix_entries = NULL;
3284         err = qlcnic_setup_intr(adapter, 0);
3285
3286         if (err) {
3287                 kfree(adapter->msix_entries);
3288                 netdev_err(netdev, "failed to setup interrupt\n");
3289                 return err;
3290         }
3291
3292         if (qlcnic_83xx_check(adapter)) {
3293                 /* register for NIC IDC AEN Events */
3294                 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3295                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3296                 if (err) {
3297                         dev_err(&adapter->pdev->dev,
3298                                 "failed to setup mbx interrupt\n");
3299                         qlcnic_clr_all_drv_state(adapter, 1);
3300                         clear_bit(__QLCNIC_AER, &adapter->state);
3301                         goto done;
3302                 }
3303         }
3304
3305         if (netif_running(netdev)) {
3306                 err = qlcnic_attach(adapter);
3307                 if (err) {
3308                         qlcnic_clr_all_drv_state(adapter, 1);
3309                         clear_bit(__QLCNIC_AER, &adapter->state);
3310                         netif_device_attach(netdev);
3311                         return err;
3312                 }
3313
3314                 err = qlcnic_up(adapter, netdev);
3315                 if (err)
3316                         goto done;
3317
3318                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3319         }
3320  done:
3321         netif_device_attach(netdev);
3322         return err;
3323 }
3324
3325 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3326                                                 pci_channel_state_t state)
3327 {
3328         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3329         struct net_device *netdev = adapter->netdev;
3330
3331         if (state == pci_channel_io_perm_failure)
3332                 return PCI_ERS_RESULT_DISCONNECT;
3333
3334         if (state == pci_channel_io_normal)
3335                 return PCI_ERS_RESULT_RECOVERED;
3336
3337         set_bit(__QLCNIC_AER, &adapter->state);
3338         netif_device_detach(netdev);
3339
3340         cancel_delayed_work_sync(&adapter->fw_work);
3341
3342         if (netif_running(netdev))
3343                 qlcnic_down(adapter, netdev);
3344
3345         if (qlcnic_83xx_check(adapter)) {
3346                 qlcnic_83xx_free_mbx_intr(adapter);
3347                 qlcnic_83xx_register_nic_idc_func(adapter, 0);
3348                 cancel_delayed_work_sync(&adapter->idc_aen_work);
3349         }
3350
3351         qlcnic_detach(adapter);
3352         qlcnic_teardown_intr(adapter);
3353
3354         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3355
3356         pci_save_state(pdev);
3357         pci_disable_device(pdev);
3358
3359         return PCI_ERS_RESULT_NEED_RESET;
3360 }
3361
3362 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3363 {
3364         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3365                                 PCI_ERS_RESULT_RECOVERED;
3366 }
3367
3368 static void qlcnic_io_resume(struct pci_dev *pdev)
3369 {
3370         u32 state;
3371         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3372
3373         pci_cleanup_aer_uncorrect_error_status(pdev);
3374         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3375         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3376                                                             &adapter->state))
3377                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3378                                                 FW_POLL_DELAY);
3379 }
3380
3381 static int
3382 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3383 {
3384         int err;
3385
3386         err = qlcnic_can_start_firmware(adapter);
3387         if (err)
3388                 return err;
3389
3390         err = qlcnic_check_npar_opertional(adapter);
3391         if (err)
3392                 return err;
3393
3394         err = qlcnic_initialize_nic(adapter);
3395         if (err)
3396                 return err;
3397
3398         qlcnic_check_options(adapter);
3399
3400         err = qlcnic_set_eswitch_port_config(adapter);
3401         if (err)
3402                 return err;
3403
3404         adapter->need_fw_reset = 0;
3405
3406         return err;
3407 }
3408
3409 int qlcnic_validate_max_rss(struct qlcnic_adapter *adapter,
3410                             __u32 val)
3411 {
3412         struct net_device *netdev = adapter->netdev;
3413         u8 max_hw = adapter->ahw->max_rx_ques;
3414         u32 max_allowed;
3415
3416         if (val > QLC_MAX_SDS_RINGS) {
3417                 netdev_err(netdev, "RSS value should not be higher than %u\n",
3418                            QLC_MAX_SDS_RINGS);
3419                 return -EINVAL;
3420         }
3421
3422         max_allowed = rounddown_pow_of_two(min_t(int, max_hw,
3423                                                  num_online_cpus()));
3424         if ((val > max_allowed) || (val < 2) || !is_power_of_2(val)) {
3425                 if (!is_power_of_2(val))
3426                         netdev_err(netdev, "RSS value should be a power of 2\n");
3427
3428                 if (val < 2)
3429                         netdev_err(netdev, "RSS value should not be lower than 2\n");
3430
3431                 if (val > max_hw)
3432                         netdev_err(netdev,
3433                                    "RSS value should not be higher than[%u], the max RSS rings supported by the adapter\n",
3434                                    max_hw);
3435
3436                 if (val > num_online_cpus())
3437                         netdev_err(netdev,
3438                                    "RSS value should not be higher than[%u], number of online CPUs in the system\n",
3439                                    num_online_cpus());
3440
3441                 netdev_err(netdev, "Unable to configure %u RSS rings\n", val);
3442
3443                 return -EINVAL;
3444         }
3445         return 0;
3446 }
3447
3448 int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data, size_t len)
3449 {
3450         int err;
3451         struct net_device *netdev = adapter->netdev;
3452
3453         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3454                 return -EBUSY;
3455
3456         netif_device_detach(netdev);
3457         if (netif_running(netdev))
3458                 __qlcnic_down(adapter, netdev);
3459
3460         qlcnic_detach(adapter);
3461
3462         if (qlcnic_83xx_check(adapter)) {
3463                 qlcnic_83xx_free_mbx_intr(adapter);
3464                 qlcnic_83xx_enable_mbx_poll(adapter);
3465         }
3466
3467         qlcnic_teardown_intr(adapter);
3468         err = qlcnic_setup_intr(adapter, data);
3469         if (err) {
3470                 kfree(adapter->msix_entries);
3471                 netdev_err(netdev, "failed to setup interrupt\n");
3472                 return err;
3473         }
3474
3475         if (qlcnic_83xx_check(adapter)) {
3476                 /* register for NIC IDC AEN Events */
3477                 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3478                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3479                 qlcnic_83xx_disable_mbx_poll(adapter);
3480                 if (err) {
3481                         dev_err(&adapter->pdev->dev,
3482                                 "failed to setup mbx interrupt\n");
3483                         goto done;
3484                 }
3485         }
3486
3487         if (netif_running(netdev)) {
3488                 err = qlcnic_attach(adapter);
3489                 if (err)
3490                         goto done;
3491                 err = __qlcnic_up(adapter, netdev);
3492                 if (err)
3493                         goto done;
3494                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3495         }
3496         err = len;
3497  done:
3498         netif_device_attach(netdev);
3499         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3500         return err;
3501 }
3502
3503 #ifdef CONFIG_INET
3504
3505 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
3506
3507 static void
3508 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
3509                         struct net_device *dev, unsigned long event)
3510 {
3511         struct in_device *indev;
3512
3513         indev = in_dev_get(dev);
3514         if (!indev)
3515                 return;
3516
3517         for_ifa(indev) {
3518                 switch (event) {
3519                 case NETDEV_UP:
3520                         qlcnic_config_ipaddr(adapter,
3521                                         ifa->ifa_address, QLCNIC_IP_UP);
3522                         break;
3523                 case NETDEV_DOWN:
3524                         qlcnic_config_ipaddr(adapter,
3525                                         ifa->ifa_address, QLCNIC_IP_DOWN);
3526                         break;
3527                 default:
3528                         break;
3529                 }
3530         } endfor_ifa(indev);
3531
3532         in_dev_put(indev);
3533 }
3534
3535 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
3536 {
3537         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3538         struct net_device *dev;
3539         u16 vid;
3540
3541         qlcnic_config_indev_addr(adapter, netdev, event);
3542
3543         rcu_read_lock();
3544         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
3545                 dev = __vlan_find_dev_deep(netdev, htons(ETH_P_8021Q), vid);
3546                 if (!dev)
3547                         continue;
3548                 qlcnic_config_indev_addr(adapter, dev, event);
3549         }
3550         rcu_read_unlock();
3551 }
3552
3553 static int qlcnic_netdev_event(struct notifier_block *this,
3554                                  unsigned long event, void *ptr)
3555 {
3556         struct qlcnic_adapter *adapter;
3557         struct net_device *dev = netdev_notifier_info_to_dev(ptr);
3558
3559 recheck:
3560         if (dev == NULL)
3561                 goto done;
3562
3563         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3564                 dev = vlan_dev_real_dev(dev);
3565                 goto recheck;
3566         }
3567
3568         if (!is_qlcnic_netdev(dev))
3569                 goto done;
3570
3571         adapter = netdev_priv(dev);
3572
3573         if (!adapter)
3574                 goto done;
3575
3576         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3577                 goto done;
3578
3579         qlcnic_config_indev_addr(adapter, dev, event);
3580 done:
3581         return NOTIFY_DONE;
3582 }
3583
3584 static int
3585 qlcnic_inetaddr_event(struct notifier_block *this,
3586                 unsigned long event, void *ptr)
3587 {
3588         struct qlcnic_adapter *adapter;
3589         struct net_device *dev;
3590
3591         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3592
3593         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3594
3595 recheck:
3596         if (dev == NULL)
3597                 goto done;
3598
3599         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3600                 dev = vlan_dev_real_dev(dev);
3601                 goto recheck;
3602         }
3603
3604         if (!is_qlcnic_netdev(dev))
3605                 goto done;
3606
3607         adapter = netdev_priv(dev);
3608
3609         if (!adapter)
3610                 goto done;
3611
3612         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3613                 goto done;
3614
3615         switch (event) {
3616         case NETDEV_UP:
3617                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
3618
3619                 break;
3620         case NETDEV_DOWN:
3621                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
3622
3623                 break;
3624         default:
3625                 break;
3626         }
3627
3628 done:
3629         return NOTIFY_DONE;
3630 }
3631
3632 static struct notifier_block    qlcnic_netdev_cb = {
3633         .notifier_call = qlcnic_netdev_event,
3634 };
3635
3636 static struct notifier_block qlcnic_inetaddr_cb = {
3637         .notifier_call = qlcnic_inetaddr_event,
3638 };
3639 #else
3640 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
3641 { }
3642 #endif
3643 static const struct pci_error_handlers qlcnic_err_handler = {
3644         .error_detected = qlcnic_io_error_detected,
3645         .slot_reset = qlcnic_io_slot_reset,
3646         .resume = qlcnic_io_resume,
3647 };
3648
3649 static struct pci_driver qlcnic_driver = {
3650         .name = qlcnic_driver_name,
3651         .id_table = qlcnic_pci_tbl,
3652         .probe = qlcnic_probe,
3653         .remove = qlcnic_remove,
3654 #ifdef CONFIG_PM
3655         .suspend = qlcnic_suspend,
3656         .resume = qlcnic_resume,
3657 #endif
3658         .shutdown = qlcnic_shutdown,
3659         .err_handler = &qlcnic_err_handler,
3660 #ifdef CONFIG_QLCNIC_SRIOV
3661         .sriov_configure = qlcnic_pci_sriov_configure,
3662 #endif
3663
3664 };
3665
3666 static int __init qlcnic_init_module(void)
3667 {
3668         int ret;
3669
3670         printk(KERN_INFO "%s\n", qlcnic_driver_string);
3671
3672 #ifdef CONFIG_INET
3673         register_netdevice_notifier(&qlcnic_netdev_cb);
3674         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
3675 #endif
3676
3677         ret = pci_register_driver(&qlcnic_driver);
3678         if (ret) {
3679 #ifdef CONFIG_INET
3680                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3681                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3682 #endif
3683         }
3684
3685         return ret;
3686 }
3687
3688 module_init(qlcnic_init_module);
3689
3690 static void __exit qlcnic_exit_module(void)
3691 {
3692         pci_unregister_driver(&qlcnic_driver);
3693
3694 #ifdef CONFIG_INET
3695         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3696         unregister_netdevice_notifier(&qlcnic_netdev_cb);
3697 #endif
3698 }
3699
3700 module_exit(qlcnic_exit_module);