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_hw.h"
  13
  14 #include <linux/swab.h>
  15 #include <linux/dma-mapping.h>
  16 #include <linux/if_vlan.h>
  17 #include <net/ip.h>
  18 #include <linux/ipv6.h>
  19 #include <linux/inetdevice.h>
  20 #include <linux/aer.h>
  21 #include <linux/log2.h>
  22 #include <linux/pci.h>
  23
  24 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
  25 MODULE_LICENSE("GPL");
  26 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
  27 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
  28
  29 char qlcnic_driver_name[] = "qlcnic";
  30 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
  31         "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
  32
  33 static int qlcnic_mac_learn;
  34 module_param(qlcnic_mac_learn, int, 0444);
  35 MODULE_PARM_DESC(qlcnic_mac_learn,
  36                  "Mac Filter (0=learning is disabled, 1=Driver learning is enabled, 2=FDB learning is enabled)");
  37
  38 int qlcnic_use_msi = 1;
  39 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled");
  40 module_param_named(use_msi, qlcnic_use_msi, int, 0444);
  41
  42 int qlcnic_use_msi_x = 1;
  43 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled");
  44 module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444);
  45
  46 int qlcnic_auto_fw_reset = 1;
  47 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled");
  48 module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644);
  49
  50 int qlcnic_load_fw_file;
  51 MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file");
  52 module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);
  53
  54 int qlcnic_config_npars;
  55 module_param(qlcnic_config_npars, int, 0444);
  56 MODULE_PARM_DESC(qlcnic_config_npars, "Configure NPARs (0=disabled, 1=enabled");
  57
  58 static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
  59 static void qlcnic_remove(struct pci_dev *pdev);
  60 static int qlcnic_open(struct net_device *netdev);
  61 static int qlcnic_close(struct net_device *netdev);
  62 static void qlcnic_tx_timeout(struct net_device *netdev);
  63 static void qlcnic_attach_work(struct work_struct *work);
  64 static void qlcnic_fwinit_work(struct work_struct *work);
  65 static void qlcnic_fw_poll_work(struct work_struct *work);
  66 #ifdef CONFIG_NET_POLL_CONTROLLER
  67 static void qlcnic_poll_controller(struct net_device *netdev);
  68 #endif
  69
  70 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
  71 static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8);
  72 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
  73
  74 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
  75 static irqreturn_t qlcnic_intr(int irq, void *data);
  76 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
  77 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
  78 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data);
  79
  80 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
  81 static int qlcnic_start_firmware(struct qlcnic_adapter *);
  82
  83 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
  84 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
  85 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
  86 static void qlcnic_set_netdev_features(struct qlcnic_adapter *,
  87                                 struct qlcnic_esw_func_cfg *);
  88 static int qlcnic_vlan_rx_add(struct net_device *, u16);
  89 static int qlcnic_vlan_rx_del(struct net_device *, u16);
  90
  91 #define QLCNIC_IS_TSO_CAPABLE(adapter)  \
  92         ((adapter)->ahw->capabilities & QLCNIC_FW_CAPABILITY_TSO)
  93
  94 static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
  95 {
  96         struct qlcnic_hardware_context *ahw = adapter->ahw;
  97
  98         if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
  99                 return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
 100         else
 101                 return 1;
 102 }
 103
 104 /*  PCI Device ID Table  */
 105 #define ENTRY(device) \
 106         {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
 107         .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
 108
 109 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
 110         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
 111         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
 112         {0,}
 113 };
 114
 115 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
 116
 117
 118 inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
 119 {
 120         writel(tx_ring->producer, tx_ring->crb_cmd_producer);
 121 }
 122
 123 static const u32 msi_tgt_status[8] = {
 124         ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
 125         ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
 126         ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
 127         ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
 128 };
 129
 130 static const u32 qlcnic_reg_tbl[] = {
 131         0x1B20A8,       /* PEG_HALT_STAT1 */
 132         0x1B20AC,       /* PEG_HALT_STAT2 */
 133         0x1B20B0,       /* FW_HEARTBEAT */
 134         0x1B2100,       /* LOCK ID */
 135         0x1B2128,       /* FW_CAPABILITIES */
 136         0x1B2138,       /* drv active */
 137         0x1B2140,       /* dev state */
 138         0x1B2144,       /* drv state */
 139         0x1B2148,       /* drv scratch */
 140         0x1B214C,       /* dev partition info */
 141         0x1B2174,       /* drv idc ver */
 142         0x1B2150,       /* fw version major */
 143         0x1B2154,       /* fw version minor */
 144         0x1B2158,       /* fw version sub */
 145         0x1B219C,       /* npar state */
 146         0x1B21FC,       /* FW_IMG_VALID */
 147         0x1B2250,       /* CMD_PEG_STATE */
 148         0x1B233C,       /* RCV_PEG_STATE */
 149         0x1B23B4,       /* ASIC TEMP */
 150         0x1B216C,       /* FW api */
 151         0x1B2170,       /* drv op mode */
 152         0x13C010,       /* flash lock */
 153         0x13C014,       /* flash unlock */
 154 };
 155
 156 static const struct qlcnic_board_info qlcnic_boards[] = {
 157         {0x1077, 0x8020, 0x1077, 0x203,
 158          "8200 Series Single Port 10GbE Converged Network Adapter"
 159          "(TCP/IP Networking)"},
 160         {0x1077, 0x8020, 0x1077, 0x207,
 161          "8200 Series Dual Port 10GbE Converged Network Adapter"
 162          "(TCP/IP Networking)"},
 163         {0x1077, 0x8020, 0x1077, 0x20b,
 164          "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter"},
 165         {0x1077, 0x8020, 0x1077, 0x20c,
 166          "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter"},
 167         {0x1077, 0x8020, 0x1077, 0x20f,
 168          "3200 Series Single Port 10Gb Intelligent Ethernet Adapter"},
 169         {0x1077, 0x8020, 0x103c, 0x3733,
 170          "NC523SFP 10Gb 2-port Server Adapter"},
 171         {0x1077, 0x8020, 0x103c, 0x3346,
 172          "CN1000Q Dual Port Converged Network Adapter"},
 173         {0x1077, 0x8020, 0x1077, 0x210,
 174          "QME8242-k 10GbE Dual Port Mezzanine Card"},
 175         {0x1077, 0x8020, 0x0, 0x0, "cLOM8214 1/10GbE Controller"},
 176 };
 177
 178 #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)
 179 #define QLC_MAX_SDS_RINGS       8
 180
 181 static const
 182 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
 183
 184 int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
 185 {
 186         int size = sizeof(struct qlcnic_host_sds_ring) * count;
 187
 188         recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
 189
 190         return recv_ctx->sds_rings == NULL;
 191 }
 192
 193 void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
 194 {
 195         if (recv_ctx->sds_rings != NULL)
 196                 kfree(recv_ctx->sds_rings);
 197
 198         recv_ctx->sds_rings = NULL;
 199 }
 200
 201 static int
 202 qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
 203 {
 204         u8 mac_addr[ETH_ALEN];
 205         struct net_device *netdev = adapter->netdev;
 206         struct pci_dev *pdev = adapter->pdev;
 207
 208         if (qlcnic_get_mac_address(adapter, mac_addr) != 0)
 209                 return -EIO;
 210
 211         memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
 212         memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
 213
 214         /* set station address */
 215
 216         if (!is_valid_ether_addr(netdev->dev_addr))
 217                 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
 218                                         netdev->dev_addr);
 219
 220         return 0;
 221 }
 222
 223 static int qlcnic_set_mac(struct net_device *netdev, void *p)
 224 {
 225         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 226         struct sockaddr *addr = p;
 227
 228         if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
 229                 return -EOPNOTSUPP;
 230
 231         if (!is_valid_ether_addr(addr->sa_data))
 232                 return -EINVAL;
 233
 234         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 235                 netif_device_detach(netdev);
 236                 qlcnic_napi_disable(adapter);
 237         }
 238
 239         memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
 240         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 241         qlcnic_set_multi(adapter->netdev);
 242
 243         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 244                 netif_device_attach(netdev);
 245                 qlcnic_napi_enable(adapter);
 246         }
 247         return 0;
 248 }
 249
 250 static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
 251                         struct net_device *netdev, const unsigned char *addr)
 252 {
 253         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 254         int err = -EOPNOTSUPP;
 255
 256         if (!adapter->fdb_mac_learn) {
 257                 pr_info("%s: Driver mac learn is enabled, FDB operation not allowed\n",
 258                         __func__);
 259                 return err;
 260         }
 261
 262         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 263                 if (is_unicast_ether_addr(addr))
 264                         err = qlcnic_nic_del_mac(adapter, addr);
 265                 else if (is_multicast_ether_addr(addr))
 266                         err = dev_mc_del(netdev, addr);
 267                 else
 268                         err =  -EINVAL;
 269         }
 270         return err;
 271 }
 272
 273 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 274                         struct net_device *netdev,
 275                         const unsigned char *addr, u16 flags)
 276 {
 277         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 278         int err = 0;
 279
 280         if (!adapter->fdb_mac_learn) {
 281                 pr_info("%s: Driver mac learn is enabled, FDB operation not allowed\n",
 282                         __func__);
 283                 return -EOPNOTSUPP;
 284         }
 285
 286         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 287                 pr_info("%s: FDB e-switch is not enabled\n", __func__);
 288                 return -EOPNOTSUPP;
 289         }
 290
 291         if (ether_addr_equal(addr, adapter->mac_addr))
 292                 return err;
 293
 294         if (is_unicast_ether_addr(addr))
 295                 err = qlcnic_nic_add_mac(adapter, addr);
 296         else if (is_multicast_ether_addr(addr))
 297                 err = dev_mc_add_excl(netdev, addr);
 298         else
 299                 err = -EINVAL;
 300
 301         return err;
 302 }
 303
 304 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
 305                         struct net_device *netdev, int idx)
 306 {
 307         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 308
 309         if (!adapter->fdb_mac_learn) {
 310                 pr_info("%s: Driver mac learn is enabled, FDB operation not allowed\n",
 311                         __func__);
 312                 return -EOPNOTSUPP;
 313         }
 314
 315         if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
 316                 idx = ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
 317
 318         return idx;
 319 }
 320
 321 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
 322 {
 323         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
 324                 usleep_range(10000, 11000);
 325
 326         cancel_delayed_work_sync(&adapter->fw_work);
 327 }
 328
 329 static const struct net_device_ops qlcnic_netdev_ops = {
 330         .ndo_open          = qlcnic_open,
 331         .ndo_stop          = qlcnic_close,
 332         .ndo_start_xmit    = qlcnic_xmit_frame,
 333         .ndo_get_stats     = qlcnic_get_stats,
 334         .ndo_validate_addr = eth_validate_addr,
 335         .ndo_set_rx_mode   = qlcnic_set_multi,
 336         .ndo_set_mac_address    = qlcnic_set_mac,
 337         .ndo_change_mtu    = qlcnic_change_mtu,
 338         .ndo_fix_features  = qlcnic_fix_features,
 339         .ndo_set_features  = qlcnic_set_features,
 340         .ndo_tx_timeout    = qlcnic_tx_timeout,
 341         .ndo_vlan_rx_add_vid    = qlcnic_vlan_rx_add,
 342         .ndo_vlan_rx_kill_vid   = qlcnic_vlan_rx_del,
 343         .ndo_fdb_add            = qlcnic_fdb_add,
 344         .ndo_fdb_del            = qlcnic_fdb_del,
 345         .ndo_fdb_dump           = qlcnic_fdb_dump,
 346 #ifdef CONFIG_NET_POLL_CONTROLLER
 347         .ndo_poll_controller = qlcnic_poll_controller,
 348 #endif
 349 };
 350
 351 static const struct net_device_ops qlcnic_netdev_failed_ops = {
 352         .ndo_open          = qlcnic_open,
 353 };
 354
 355 static struct qlcnic_nic_template qlcnic_ops = {
 356         .config_bridged_mode    = qlcnic_config_bridged_mode,
 357         .config_led             = qlcnic_82xx_config_led,
 358         .start_firmware         = qlcnic_82xx_start_firmware,
 359         .request_reset          = qlcnic_82xx_dev_request_reset,
 360         .cancel_idc_work        = qlcnic_82xx_cancel_idc_work,
 361         .napi_add               = qlcnic_82xx_napi_add,
 362         .napi_del               = qlcnic_82xx_napi_del,
 363         .config_ipaddr          = qlcnic_82xx_config_ipaddr,
 364         .clear_legacy_intr      = qlcnic_82xx_clear_legacy_intr,
 365 };
 366
 367 struct qlcnic_nic_template qlcnic_vf_ops = {
 368         .config_bridged_mode    = qlcnicvf_config_bridged_mode,
 369         .config_led             = qlcnicvf_config_led,
 370         .start_firmware         = qlcnicvf_start_firmware
 371 };
 372
 373 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
 374         .read_crb                       = qlcnic_82xx_read_crb,
 375         .write_crb                      = qlcnic_82xx_write_crb,
 376         .read_reg                       = qlcnic_82xx_hw_read_wx_2M,
 377         .write_reg                      = qlcnic_82xx_hw_write_wx_2M,
 378         .get_mac_address                = qlcnic_82xx_get_mac_address,
 379         .setup_intr                     = qlcnic_82xx_setup_intr,
 380         .alloc_mbx_args                 = qlcnic_82xx_alloc_mbx_args,
 381         .mbx_cmd                        = qlcnic_82xx_issue_cmd,
 382         .get_func_no                    = qlcnic_82xx_get_func_no,
 383         .api_lock                       = qlcnic_82xx_api_lock,
 384         .api_unlock                     = qlcnic_82xx_api_unlock,
 385         .add_sysfs                      = qlcnic_82xx_add_sysfs,
 386         .remove_sysfs                   = qlcnic_82xx_remove_sysfs,
 387         .process_lb_rcv_ring_diag       = qlcnic_82xx_process_rcv_ring_diag,
 388         .create_rx_ctx                  = qlcnic_82xx_fw_cmd_create_rx_ctx,
 389         .create_tx_ctx                  = qlcnic_82xx_fw_cmd_create_tx_ctx,
 390         .setup_link_event               = qlcnic_82xx_linkevent_request,
 391         .get_nic_info                   = qlcnic_82xx_get_nic_info,
 392         .get_pci_info                   = qlcnic_82xx_get_pci_info,
 393         .set_nic_info                   = qlcnic_82xx_set_nic_info,
 394         .change_macvlan                 = qlcnic_82xx_sre_macaddr_change,
 395         .napi_enable                    = qlcnic_82xx_napi_enable,
 396         .napi_disable                   = qlcnic_82xx_napi_disable,
 397         .config_intr_coal               = qlcnic_82xx_config_intr_coalesce,
 398         .config_rss                     = qlcnic_82xx_config_rss,
 399         .config_hw_lro                  = qlcnic_82xx_config_hw_lro,
 400         .config_loopback                = qlcnic_82xx_set_lb_mode,
 401         .clear_loopback                 = qlcnic_82xx_clear_lb_mode,
 402         .config_promisc_mode            = qlcnic_82xx_nic_set_promisc,
 403         .change_l2_filter               = qlcnic_82xx_change_filter,
 404         .get_board_info                 = qlcnic_82xx_get_board_info,
 405 };
 406
 407 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 408 {
 409         struct pci_dev *pdev = adapter->pdev;
 410         int err = -1, i;
 411         int max_tx_rings;
 412
 413         if (!adapter->msix_entries) {
 414                 adapter->msix_entries = kcalloc(num_msix,
 415                                                 sizeof(struct msix_entry),
 416                                                 GFP_KERNEL);
 417                 if (!adapter->msix_entries)
 418                         return -ENOMEM;
 419         }
 420
 421         adapter->max_sds_rings = 1;
 422         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 423
 424         if (adapter->ahw->msix_supported) {
 425  enable_msix:
 426                 for (i = 0; i < num_msix; i++)
 427                         adapter->msix_entries[i].entry = i;
 428                 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
 429                 if (err == 0) {
 430                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 431                         if (qlcnic_83xx_check(adapter)) {
 432                                 adapter->ahw->num_msix = num_msix;
 433                                 /* subtract mail box and tx ring vectors */
 434                                 max_tx_rings = adapter->max_drv_tx_rings;
 435                                 adapter->max_sds_rings = num_msix -
 436                                                          max_tx_rings - 1;
 437                         } else {
 438                                 adapter->max_sds_rings = num_msix;
 439                         }
 440                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 441                         return err;
 442                 } else if (err > 0) {
 443                         dev_info(&pdev->dev,
 444                                  "Unable to allocate %d MSI-X interrupt vectors\n",
 445                                  num_msix);
 446                         if (qlcnic_83xx_check(adapter)) {
 447                                 if (err < QLC_83XX_MINIMUM_VECTOR)
 448                                         return err;
 449                                 err -= (adapter->max_drv_tx_rings + 1);
 450                                 num_msix = rounddown_pow_of_two(err);
 451                                 num_msix += (adapter->max_drv_tx_rings + 1);
 452                         } else {
 453                                 num_msix = rounddown_pow_of_two(err);
 454                         }
 455
 456                         if (num_msix) {
 457                                 dev_info(&pdev->dev,
 458                                          "Trying to allocate %d MSI-X interrupt vectors\n",
 459                                          num_msix);
 460                                 goto enable_msix;
 461                         }
 462                 } else {
 463                         dev_info(&pdev->dev,
 464                                  "Unable to allocate %d MSI-X interrupt vectors\n",
 465                                  num_msix);
 466                 }
 467         }
 468
 469         return err;
 470 }
 471
 472 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
 473 {
 474         int err = 0;
 475         u32 offset, mask_reg;
 476         const struct qlcnic_legacy_intr_set *legacy_intrp;
 477         struct qlcnic_hardware_context *ahw = adapter->ahw;
 478         struct pci_dev *pdev = adapter->pdev;
 479
 480         if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
 481                 adapter->flags |= QLCNIC_MSI_ENABLED;
 482                 offset = msi_tgt_status[adapter->ahw->pci_func];
 483                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
 484                                                             offset);
 485                 dev_info(&pdev->dev, "using msi interrupts\n");
 486                 adapter->msix_entries[0].vector = pdev->irq;
 487                 return err;
 488         }
 489         if (qlcnic_use_msi || qlcnic_use_msi_x)
 490                 return -EOPNOTSUPP;
 491
 492         legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
 493         adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
 494         offset = legacy_intrp->tgt_status_reg;
 495         adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
 496         mask_reg = legacy_intrp->tgt_mask_reg;
 497         adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
 498         adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
 499         adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
 500         dev_info(&pdev->dev, "using legacy interrupts\n");
 501         adapter->msix_entries[0].vector = pdev->irq;
 502         return err;
 503 }
 504
 505 int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter, u8 num_intr)
 506 {
 507         int num_msix, err = 0;
 508
 509         if (!num_intr)
 510                 num_intr = QLCNIC_DEF_NUM_STS_DESC_RINGS;
 511
 512         if (adapter->ahw->msix_supported)
 513                 num_msix = rounddown_pow_of_two(min_t(int, num_online_cpus(),
 514                                                 num_intr));
 515         else
 516                 num_msix = 1;
 517
 518         err = qlcnic_enable_msix(adapter, num_msix);
 519         if (err == -ENOMEM || !err)
 520                 return err;
 521
 522         err = qlcnic_enable_msi_legacy(adapter);
 523         if (!err)
 524                 return err;
 525
 526         return -EIO;
 527 }
 528
 529 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 530 {
 531         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 532                 pci_disable_msix(adapter->pdev);
 533         if (adapter->flags & QLCNIC_MSI_ENABLED)
 534                 pci_disable_msi(adapter->pdev);
 535
 536         kfree(adapter->msix_entries);
 537         adapter->msix_entries = NULL;
 538
 539         if (adapter->ahw->intr_tbl) {
 540                 vfree(adapter->ahw->intr_tbl);
 541                 adapter->ahw->intr_tbl = NULL;
 542         }
 543 }
 544
 545 static void
 546 qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter)
 547 {
 548         if (adapter->ahw->pci_base0 != NULL)
 549                 iounmap(adapter->ahw->pci_base0);
 550 }
 551
 552 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
 553 {
 554         struct qlcnic_pci_info *pci_info;
 555         int ret;
 556
 557         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 558                 switch (adapter->ahw->port_type) {
 559                 case QLCNIC_GBE:
 560                         adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_GBE_PORTS;
 561                         break;
 562                 case QLCNIC_XGBE:
 563                         adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_XG_PORTS;
 564                         break;
 565                 }
 566                 return 0;
 567         }
 568
 569         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
 570                 return 0;
 571
 572         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 573         if (!pci_info)
 574                 return -ENOMEM;
 575
 576         ret = qlcnic_get_pci_info(adapter, pci_info);
 577         kfree(pci_info);
 578         return ret;
 579 }
 580
 581 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 582 {
 583         struct qlcnic_pci_info *pci_info;
 584         int i, ret = 0, j = 0;
 585         u16 act_pci_func;
 586         u8 pfn;
 587
 588         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 589         if (!pci_info)
 590                 return -ENOMEM;
 591
 592         ret = qlcnic_get_pci_info(adapter, pci_info);
 593         if (ret)
 594                 goto err_pci_info;
 595
 596         act_pci_func = adapter->ahw->act_pci_func;
 597
 598         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
 599                                  act_pci_func, GFP_KERNEL);
 600         if (!adapter->npars) {
 601                 ret = -ENOMEM;
 602                 goto err_pci_info;
 603         }
 604
 605         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
 606                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
 607         if (!adapter->eswitch) {
 608                 ret = -ENOMEM;
 609                 goto err_npars;
 610         }
 611
 612         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 613                 pfn = pci_info[i].id;
 614
 615                 if (pfn >= QLCNIC_MAX_PCI_FUNC) {
 616                         ret = QL_STATUS_INVALID_PARAM;
 617                         goto err_eswitch;
 618                 }
 619
 620                 if (!pci_info[i].active ||
 621                     (pci_info[i].type != QLCNIC_TYPE_NIC))
 622                         continue;
 623
 624                 adapter->npars[j].pci_func = pfn;
 625                 adapter->npars[j].active = (u8)pci_info[i].active;
 626                 adapter->npars[j].type = (u8)pci_info[i].type;
 627                 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
 628                 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
 629                 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
 630                 j++;
 631         }
 632
 633         for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++) {
 634                 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
 635                 if (qlcnic_83xx_check(adapter))
 636                         qlcnic_enable_eswitch(adapter, i, 1);
 637         }
 638
 639         kfree(pci_info);
 640         return 0;
 641
 642 err_eswitch:
 643         kfree(adapter->eswitch);
 644         adapter->eswitch = NULL;
 645 err_npars:
 646         kfree(adapter->npars);
 647         adapter->npars = NULL;
 648 err_pci_info:
 649         kfree(pci_info);
 650
 651         return ret;
 652 }
 653
 654 static int
 655 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
 656 {
 657         u8 id;
 658         int i, ret = 1;
 659         u32 data = QLCNIC_MGMT_FUNC;
 660         struct qlcnic_hardware_context *ahw = adapter->ahw;
 661
 662         ret = qlcnic_api_lock(adapter);
 663         if (ret)
 664                 goto err_lock;
 665
 666         if (qlcnic_config_npars) {
 667                 for (i = 0; i < ahw->act_pci_func; i++) {
 668                         id = adapter->npars[i].pci_func;
 669                         if (id == ahw->pci_func)
 670                                 continue;
 671                         data |= (qlcnic_config_npars &
 672                                         QLC_DEV_SET_DRV(0xf, id));
 673                 }
 674         } else {
 675                 data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 676                 data = (data & ~QLC_DEV_SET_DRV(0xf, ahw->pci_func)) |
 677                         (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
 678                                          ahw->pci_func));
 679         }
 680         QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
 681         qlcnic_api_unlock(adapter);
 682 err_lock:
 683         return ret;
 684 }
 685
 686 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
 687                             const struct pci_device_id *ent)
 688 {
 689         u32 op_mode, priv_level;
 690
 691         /* Determine FW API version */
 692         adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
 693                                                            QLCNIC_FW_API);
 694
 695         /* Find PCI function number */
 696         qlcnic_get_func_no(adapter);
 697
 698         /* Determine function privilege level */
 699         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 700         if (op_mode == QLC_DEV_DRV_DEFAULT)
 701                 priv_level = QLCNIC_MGMT_FUNC;
 702         else
 703                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
 704
 705         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
 706                 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
 707                 dev_info(&adapter->pdev->dev,
 708                         "HAL Version: %d Non Privileged function\n",
 709                          adapter->ahw->fw_hal_version);
 710                 adapter->nic_ops = &qlcnic_vf_ops;
 711         } else
 712                 adapter->nic_ops = &qlcnic_ops;
 713 }
 714
 715 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
 716 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
 717 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
 718 {
 719         switch (dev_id) {
 720         case PCI_DEVICE_ID_QLOGIC_QLE824X:
 721                 *bar = QLCNIC_82XX_BAR0_LENGTH;
 722                 break;
 723         case PCI_DEVICE_ID_QLOGIC_QLE834X:
 724                 *bar = QLCNIC_83XX_BAR0_LENGTH;
 725                 break;
 726         default:
 727                 *bar = 0;
 728         }
 729 }
 730
 731 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
 732                                 struct qlcnic_hardware_context *ahw)
 733 {
 734         u32 offset;
 735         void __iomem *mem_ptr0 = NULL;
 736         unsigned long mem_len, pci_len0 = 0, bar0_len;
 737
 738         /* remap phys address */
 739         mem_len = pci_resource_len(pdev, 0);
 740
 741         qlcnic_get_bar_length(pdev->device, &bar0_len);
 742         if (mem_len >= bar0_len) {
 743
 744                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
 745                 if (mem_ptr0 == NULL) {
 746                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
 747                         return -EIO;
 748                 }
 749                 pci_len0 = mem_len;
 750         } else {
 751                 return -EIO;
 752         }
 753
 754         dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
 755
 756         ahw->pci_base0 = mem_ptr0;
 757         ahw->pci_len0 = pci_len0;
 758         offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
 759         qlcnic_get_ioaddr(ahw, offset);
 760
 761         return 0;
 762 }
 763
 764 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
 765 {
 766         struct pci_dev *pdev = adapter->pdev;
 767         int i, found = 0;
 768
 769         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
 770                 if (qlcnic_boards[i].vendor == pdev->vendor &&
 771                         qlcnic_boards[i].device == pdev->device &&
 772                         qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
 773                         qlcnic_boards[i].sub_device == pdev->subsystem_device) {
 774                                 sprintf(name, "%pM: %s" ,
 775                                         adapter->mac_addr,
 776                                         qlcnic_boards[i].short_name);
 777                                 found = 1;
 778                                 break;
 779                 }
 780
 781         }
 782
 783         if (!found)
 784                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
 785 }
 786
 787 static void
 788 qlcnic_check_options(struct qlcnic_adapter *adapter)
 789 {
 790         int err;
 791         u32 fw_major, fw_minor, fw_build, prev_fw_version;
 792         struct pci_dev *pdev = adapter->pdev;
 793         struct qlcnic_hardware_context *ahw = adapter->ahw;
 794         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
 795
 796         prev_fw_version = adapter->fw_version;
 797
 798         fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
 799         fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
 800         fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
 801
 802         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
 803
 804         err = qlcnic_get_board_info(adapter);
 805         if (err) {
 806                 dev_err(&pdev->dev, "Error getting board config info.\n");
 807                 return;
 808         }
 809         if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
 810                 if (fw_dump->tmpl_hdr == NULL ||
 811                                 adapter->fw_version > prev_fw_version) {
 812                         if (fw_dump->tmpl_hdr)
 813                                 vfree(fw_dump->tmpl_hdr);
 814                         if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
 815                                 dev_info(&pdev->dev,
 816                                         "Supports FW dump capability\n");
 817                 }
 818         }
 819
 820         dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
 821                  QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
 822
 823         if (adapter->ahw->port_type == QLCNIC_XGBE) {
 824                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 825                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
 826                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
 827                 } else {
 828                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
 829                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
 830                 }
 831
 832                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 833                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 834
 835         } else if (adapter->ahw->port_type == QLCNIC_GBE) {
 836                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
 837                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 838                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 839                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
 840         }
 841
 842         adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
 843
 844         adapter->num_txd = MAX_CMD_DESCRIPTORS;
 845
 846         adapter->max_rds_rings = MAX_RDS_RINGS;
 847 }
 848
 849 static int
 850 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
 851 {
 852         int err;
 853         struct qlcnic_info nic_info;
 854
 855         memset(&nic_info, 0, sizeof(struct qlcnic_info));
 856         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
 857         if (err)
 858                 return err;
 859
 860         adapter->ahw->physical_port = (u8)nic_info.phys_port;
 861         adapter->ahw->switch_mode = nic_info.switch_mode;
 862         adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
 863         adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
 864         adapter->ahw->capabilities = nic_info.capabilities;
 865
 866         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
 867                 u32 temp;
 868                 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
 869                 adapter->ahw->capabilities2 = temp;
 870         }
 871         adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
 872         adapter->ahw->max_mtu = nic_info.max_mtu;
 873
 874         /* Disable NPAR for 83XX */
 875         if (qlcnic_83xx_check(adapter))
 876                 return err;
 877
 878         if (adapter->ahw->capabilities & BIT_6)
 879                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
 880         else
 881                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
 882
 883         return err;
 884 }
 885
 886 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
 887                             struct qlcnic_esw_func_cfg *esw_cfg)
 888 {
 889         if (esw_cfg->discard_tagged)
 890                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
 891         else
 892                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
 893
 894         if (esw_cfg->vlan_id)
 895                 adapter->pvid = esw_cfg->vlan_id;
 896         else
 897                 adapter->pvid = 0;
 898 }
 899
 900 static int
 901 qlcnic_vlan_rx_add(struct net_device *netdev, u16 vid)
 902 {
 903         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 904         set_bit(vid, adapter->vlans);
 905         return 0;
 906 }
 907
 908 static int
 909 qlcnic_vlan_rx_del(struct net_device *netdev, u16 vid)
 910 {
 911         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 912
 913         qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
 914         clear_bit(vid, adapter->vlans);
 915         return 0;
 916 }
 917
 918 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
 919                                       struct qlcnic_esw_func_cfg *esw_cfg)
 920 {
 921         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
 922                                 QLCNIC_PROMISC_DISABLED);
 923
 924         if (esw_cfg->mac_anti_spoof)
 925                 adapter->flags |= QLCNIC_MACSPOOF;
 926
 927         if (!esw_cfg->mac_override)
 928                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
 929
 930         if (!esw_cfg->promisc_mode)
 931                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
 932
 933         qlcnic_set_netdev_features(adapter, esw_cfg);
 934 }
 935
 936 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
 937 {
 938         struct qlcnic_esw_func_cfg esw_cfg;
 939
 940         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
 941                 return 0;
 942
 943         esw_cfg.pci_func = adapter->ahw->pci_func;
 944         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
 945                         return -EIO;
 946         qlcnic_set_vlan_config(adapter, &esw_cfg);
 947         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
 948
 949         return 0;
 950 }
 951
 952 static void
 953 qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
 954                 struct qlcnic_esw_func_cfg *esw_cfg)
 955 {
 956         struct net_device *netdev = adapter->netdev;
 957         unsigned long features, vlan_features;
 958
 959         if (qlcnic_83xx_check(adapter))
 960                 return;
 961
 962         features = (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
 963                     NETIF_F_IPV6_CSUM | NETIF_F_GRO);
 964         vlan_features = (NETIF_F_SG | NETIF_F_IP_CSUM |
 965                         NETIF_F_IPV6_CSUM);
 966
 967         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
 968                 features |= (NETIF_F_TSO | NETIF_F_TSO6);
 969                 vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
 970         }
 971
 972         if (netdev->features & NETIF_F_LRO)
 973                 features |= NETIF_F_LRO;
 974
 975         if (esw_cfg->offload_flags & BIT_0) {
 976                 netdev->features |= features;
 977                 adapter->rx_csum = 1;
 978                 if (!(esw_cfg->offload_flags & BIT_1)) {
 979                         netdev->features &= ~NETIF_F_TSO;
 980                         features &= ~NETIF_F_TSO;
 981                 }
 982                 if (!(esw_cfg->offload_flags & BIT_2)) {
 983                         netdev->features &= ~NETIF_F_TSO6;
 984                         features &= ~NETIF_F_TSO6;
 985                 }
 986         } else {
 987                 netdev->features &= ~features;
 988                 features &= ~features;
 989                 adapter->rx_csum = 0;
 990         }
 991
 992         netdev->vlan_features = (features & vlan_features);
 993 }
 994
 995 static int
 996 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
 997 {
 998         u32 op_mode, priv_level;
 999         int err = 0;
1000
1001         err = qlcnic_initialize_nic(adapter);
1002         if (err)
1003                 return err;
1004
1005         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1006                 return 0;
1007
1008         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1009         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1010
1011         if (op_mode == QLC_DEV_DRV_DEFAULT)
1012                 priv_level = QLCNIC_MGMT_FUNC;
1013         else
1014                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1015
1016         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1017                 if (priv_level == QLCNIC_MGMT_FUNC) {
1018                         adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1019                         err = qlcnic_init_pci_info(adapter);
1020                         if (err)
1021                                 return err;
1022                         /* Set privilege level for other functions */
1023                         qlcnic_set_function_modes(adapter);
1024                         dev_info(&adapter->pdev->dev,
1025                                 "HAL Version: %d, Management function\n",
1026                                  adapter->ahw->fw_hal_version);
1027                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1028                         adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1029                         dev_info(&adapter->pdev->dev,
1030                                 "HAL Version: %d, Privileged function\n",
1031                                  adapter->ahw->fw_hal_version);
1032                 }
1033         }
1034
1035         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1036
1037         return err;
1038 }
1039
1040 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1041 {
1042         struct qlcnic_esw_func_cfg esw_cfg;
1043         struct qlcnic_npar_info *npar;
1044         u8 i;
1045
1046         if (adapter->need_fw_reset)
1047                 return 0;
1048
1049         for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1050                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1051                 esw_cfg.pci_func = adapter->npars[i].pci_func;
1052                 esw_cfg.mac_override = BIT_0;
1053                 esw_cfg.promisc_mode = BIT_0;
1054                 if (qlcnic_82xx_check(adapter)) {
1055                         esw_cfg.offload_flags = BIT_0;
1056                         if (QLCNIC_IS_TSO_CAPABLE(adapter))
1057                                 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1058                 }
1059                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1060                         return -EIO;
1061                 npar = &adapter->npars[i];
1062                 npar->pvid = esw_cfg.vlan_id;
1063                 npar->mac_override = esw_cfg.mac_override;
1064                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1065                 npar->discard_tagged = esw_cfg.discard_tagged;
1066                 npar->promisc_mode = esw_cfg.promisc_mode;
1067                 npar->offload_flags = esw_cfg.offload_flags;
1068         }
1069
1070         return 0;
1071 }
1072
1073
1074 static int
1075 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1076                         struct qlcnic_npar_info *npar, int pci_func)
1077 {
1078         struct qlcnic_esw_func_cfg esw_cfg;
1079         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1080         esw_cfg.pci_func = pci_func;
1081         esw_cfg.vlan_id = npar->pvid;
1082         esw_cfg.mac_override = npar->mac_override;
1083         esw_cfg.discard_tagged = npar->discard_tagged;
1084         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1085         esw_cfg.offload_flags = npar->offload_flags;
1086         esw_cfg.promisc_mode = npar->promisc_mode;
1087         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1088                 return -EIO;
1089
1090         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1091         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1092                 return -EIO;
1093
1094         return 0;
1095 }
1096
1097 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1098 {
1099         int i, err;
1100         struct qlcnic_npar_info *npar;
1101         struct qlcnic_info nic_info;
1102         u8 pci_func;
1103
1104         if (qlcnic_82xx_check(adapter))
1105                 if (!adapter->need_fw_reset)
1106                         return 0;
1107
1108         /* Set the NPAR config data after FW reset */
1109         for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1110                 npar = &adapter->npars[i];
1111                 pci_func = npar->pci_func;
1112                 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1113                 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1114                 if (err)
1115                         return err;
1116                 nic_info.min_tx_bw = npar->min_bw;
1117                 nic_info.max_tx_bw = npar->max_bw;
1118                 err = qlcnic_set_nic_info(adapter, &nic_info);
1119                 if (err)
1120                         return err;
1121
1122                 if (npar->enable_pm) {
1123                         err = qlcnic_config_port_mirroring(adapter,
1124                                                            npar->dest_npar, 1,
1125                                                            pci_func);
1126                         if (err)
1127                                 return err;
1128                 }
1129                 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1130                 if (err)
1131                         return err;
1132         }
1133         return 0;
1134 }
1135
1136 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1137 {
1138         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1139         u32 npar_state;
1140
1141         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1142                 return 0;
1143
1144         npar_state = QLC_SHARED_REG_RD32(adapter,
1145                                          QLCNIC_CRB_DEV_NPAR_STATE);
1146         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1147                 msleep(1000);
1148                 npar_state = QLC_SHARED_REG_RD32(adapter,
1149                                                  QLCNIC_CRB_DEV_NPAR_STATE);
1150         }
1151         if (!npar_opt_timeo) {
1152                 dev_err(&adapter->pdev->dev,
1153                         "Waiting for NPAR state to operational timeout\n");
1154                 return -EIO;
1155         }
1156         return 0;
1157 }
1158
1159 static int
1160 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1161 {
1162         int err;
1163
1164         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1165             adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1166                 return 0;
1167
1168         err = qlcnic_set_default_offload_settings(adapter);
1169         if (err)
1170                 return err;
1171
1172         err = qlcnic_reset_npar_config(adapter);
1173         if (err)
1174                 return err;
1175
1176         qlcnic_dev_set_npar_ready(adapter);
1177
1178         return err;
1179 }
1180
1181 int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1182 {
1183         int err;
1184
1185         err = qlcnic_can_start_firmware(adapter);
1186         if (err < 0)
1187                 return err;
1188         else if (!err)
1189                 goto check_fw_status;
1190
1191         if (qlcnic_load_fw_file)
1192                 qlcnic_request_firmware(adapter);
1193         else {
1194                 err = qlcnic_check_flash_fw_ver(adapter);
1195                 if (err)
1196                         goto err_out;
1197
1198                 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1199         }
1200
1201         err = qlcnic_need_fw_reset(adapter);
1202         if (err == 0)
1203                 goto check_fw_status;
1204
1205         err = qlcnic_pinit_from_rom(adapter);
1206         if (err)
1207                 goto err_out;
1208
1209         err = qlcnic_load_firmware(adapter);
1210         if (err)
1211                 goto err_out;
1212
1213         qlcnic_release_firmware(adapter);
1214         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1215
1216 check_fw_status:
1217         err = qlcnic_check_fw_status(adapter);
1218         if (err)
1219                 goto err_out;
1220
1221         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1222         qlcnic_idc_debug_info(adapter, 1);
1223         err = qlcnic_check_eswitch_mode(adapter);
1224         if (err) {
1225                 dev_err(&adapter->pdev->dev,
1226                         "Memory allocation failed for eswitch\n");
1227                 goto err_out;
1228         }
1229         err = qlcnic_set_mgmt_operations(adapter);
1230         if (err)
1231                 goto err_out;
1232
1233         qlcnic_check_options(adapter);
1234         adapter->need_fw_reset = 0;
1235
1236         qlcnic_release_firmware(adapter);
1237         return 0;
1238
1239 err_out:
1240         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1241         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1242
1243         qlcnic_release_firmware(adapter);
1244         return err;
1245 }
1246
1247 static int
1248 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1249 {
1250         irq_handler_t handler;
1251         struct qlcnic_host_sds_ring *sds_ring;
1252         struct qlcnic_host_tx_ring *tx_ring;
1253         int err, ring;
1254
1255         unsigned long flags = 0;
1256         struct net_device *netdev = adapter->netdev;
1257         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1258
1259         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1260                 if (qlcnic_82xx_check(adapter))
1261                         handler = qlcnic_tmp_intr;
1262                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1263                         flags |= IRQF_SHARED;
1264
1265         } else {
1266                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1267                         handler = qlcnic_msix_intr;
1268                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1269                         handler = qlcnic_msi_intr;
1270                 else {
1271                         flags |= IRQF_SHARED;
1272                         if (qlcnic_82xx_check(adapter))
1273                                 handler = qlcnic_intr;
1274                         else
1275                                 handler = qlcnic_83xx_intr;
1276                 }
1277         }
1278         adapter->irq = netdev->irq;
1279
1280         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1281                 if (qlcnic_82xx_check(adapter) ||
1282                     (qlcnic_83xx_check(adapter) &&
1283                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1284                         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1285                                 sds_ring = &recv_ctx->sds_rings[ring];
1286                                 snprintf(sds_ring->name, sizeof(int) + IFNAMSIZ,
1287                                          "%s[%d]", netdev->name, ring);
1288                                 err = request_irq(sds_ring->irq, handler, flags,
1289                                                   sds_ring->name, sds_ring);
1290                                 if (err)
1291                                         return err;
1292                         }
1293                 }
1294                 if (qlcnic_83xx_check(adapter) &&
1295                     (adapter->flags & QLCNIC_MSIX_ENABLED)) {
1296                         handler = qlcnic_msix_tx_intr;
1297                         for (ring = 0; ring < adapter->max_drv_tx_rings;
1298                              ring++) {
1299                                 tx_ring = &adapter->tx_ring[ring];
1300                                 snprintf(tx_ring->name, sizeof(int) + IFNAMSIZ,
1301                                          "%s[%d]", netdev->name,
1302                                          adapter->max_sds_rings + ring);
1303                                 err = request_irq(tx_ring->irq, handler, flags,
1304                                                   tx_ring->name, tx_ring);
1305                                 if (err)
1306                                         return err;
1307                         }
1308                 }
1309         }
1310         return 0;
1311 }
1312
1313 static void
1314 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1315 {
1316         int ring;
1317         struct qlcnic_host_sds_ring *sds_ring;
1318         struct qlcnic_host_tx_ring *tx_ring;
1319
1320         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1321
1322         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1323                 if (qlcnic_82xx_check(adapter) ||
1324                     (qlcnic_83xx_check(adapter) &&
1325                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1326                         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1327                                 sds_ring = &recv_ctx->sds_rings[ring];
1328                                 free_irq(sds_ring->irq, sds_ring);
1329                         }
1330                 }
1331                 if (qlcnic_83xx_check(adapter)) {
1332                         for (ring = 0; ring < adapter->max_drv_tx_rings;
1333                              ring++) {
1334                                 tx_ring = &adapter->tx_ring[ring];
1335                                 if (tx_ring->irq)
1336                                         free_irq(tx_ring->irq, tx_ring);
1337                         }
1338                 }
1339         }
1340 }
1341
1342 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1343 {
1344         u32 capab = 0;
1345
1346         if (qlcnic_82xx_check(adapter)) {
1347                 if (adapter->ahw->capabilities2 &
1348                     QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1349                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1350         } else {
1351                 capab = adapter->ahw->capabilities;
1352                 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1353                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1354         }
1355 }
1356
1357 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1358 {
1359         int ring;
1360         struct qlcnic_host_rds_ring *rds_ring;
1361
1362         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1363                 return -EIO;
1364
1365         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1366                 return 0;
1367         if (qlcnic_set_eswitch_port_config(adapter))
1368                 return -EIO;
1369         qlcnic_get_lro_mss_capability(adapter);
1370
1371         if (qlcnic_fw_create_ctx(adapter))
1372                 return -EIO;
1373
1374         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1375                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1376                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1377         }
1378
1379         qlcnic_set_multi(netdev);
1380         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1381
1382         adapter->ahw->linkup = 0;
1383
1384         if (adapter->max_sds_rings > 1)
1385                 qlcnic_config_rss(adapter, 1);
1386
1387         qlcnic_config_intr_coalesce(adapter);
1388
1389         if (netdev->features & NETIF_F_LRO)
1390                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1391
1392         qlcnic_napi_enable(adapter);
1393
1394         qlcnic_linkevent_request(adapter, 1);
1395
1396         adapter->ahw->reset_context = 0;
1397         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1398         return 0;
1399 }
1400
1401 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1402 {
1403         int err = 0;
1404
1405         rtnl_lock();
1406         if (netif_running(netdev))
1407                 err = __qlcnic_up(adapter, netdev);
1408         rtnl_unlock();
1409
1410         return err;
1411 }
1412
1413 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1414 {
1415         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1416                 return;
1417
1418         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1419                 return;
1420
1421         smp_mb();
1422         spin_lock(&adapter->tx_clean_lock);
1423         netif_carrier_off(netdev);
1424         netif_tx_disable(netdev);
1425
1426         qlcnic_free_mac_list(adapter);
1427
1428         if (adapter->fhash.fnum)
1429                 qlcnic_delete_lb_filters(adapter);
1430
1431         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1432
1433         qlcnic_napi_disable(adapter);
1434
1435         qlcnic_fw_destroy_ctx(adapter);
1436         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1437
1438         qlcnic_reset_rx_buffers_list(adapter);
1439         qlcnic_release_tx_buffers(adapter);
1440         spin_unlock(&adapter->tx_clean_lock);
1441 }
1442
1443 /* Usage: During suspend and firmware recovery module */
1444
1445 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1446 {
1447         rtnl_lock();
1448         if (netif_running(netdev))
1449                 __qlcnic_down(adapter, netdev);
1450         rtnl_unlock();
1451
1452 }
1453
1454 int
1455 qlcnic_attach(struct qlcnic_adapter *adapter)
1456 {
1457         struct net_device *netdev = adapter->netdev;
1458         struct pci_dev *pdev = adapter->pdev;
1459         int err;
1460
1461         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1462                 return 0;
1463
1464         err = qlcnic_napi_add(adapter, netdev);
1465         if (err)
1466                 return err;
1467
1468         err = qlcnic_alloc_sw_resources(adapter);
1469         if (err) {
1470                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1471                 goto err_out_napi_del;
1472         }
1473
1474         err = qlcnic_alloc_hw_resources(adapter);
1475         if (err) {
1476                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1477                 goto err_out_free_sw;
1478         }
1479
1480         err = qlcnic_request_irq(adapter);
1481         if (err) {
1482                 dev_err(&pdev->dev, "failed to setup interrupt\n");
1483                 goto err_out_free_hw;
1484         }
1485
1486         qlcnic_create_sysfs_entries(adapter);
1487
1488         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1489         return 0;
1490
1491 err_out_free_hw:
1492         qlcnic_free_hw_resources(adapter);
1493 err_out_free_sw:
1494         qlcnic_free_sw_resources(adapter);
1495 err_out_napi_del:
1496         qlcnic_napi_del(adapter);
1497         return err;
1498 }
1499
1500 void qlcnic_detach(struct qlcnic_adapter *adapter)
1501 {
1502         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1503                 return;
1504
1505         qlcnic_remove_sysfs_entries(adapter);
1506
1507         qlcnic_free_hw_resources(adapter);
1508         qlcnic_release_rx_buffers(adapter);
1509         qlcnic_free_irq(adapter);
1510         qlcnic_napi_del(adapter);
1511         qlcnic_free_sw_resources(adapter);
1512
1513         adapter->is_up = 0;
1514 }
1515
1516 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1517 {
1518         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1519         struct qlcnic_host_sds_ring *sds_ring;
1520         int ring;
1521
1522         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1523         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1524                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1525                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1526                         qlcnic_disable_int(sds_ring);
1527                 }
1528         }
1529
1530         qlcnic_fw_destroy_ctx(adapter);
1531
1532         qlcnic_detach(adapter);
1533
1534         adapter->ahw->diag_test = 0;
1535         adapter->max_sds_rings = max_sds_rings;
1536
1537         if (qlcnic_attach(adapter))
1538                 goto out;
1539
1540         if (netif_running(netdev))
1541                 __qlcnic_up(adapter, netdev);
1542 out:
1543         netif_device_attach(netdev);
1544 }
1545
1546 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
1547 {
1548         int err = 0;
1549         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
1550                                 GFP_KERNEL);
1551         if (!adapter->recv_ctx) {
1552                 err = -ENOMEM;
1553                 goto err_out;
1554         }
1555         /* Initialize interrupt coalesce parameters */
1556         adapter->ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1557         adapter->ahw->coal.rx_time_us = QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
1558         adapter->ahw->coal.rx_packets = QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
1559         /* clear stats */
1560         memset(&adapter->stats, 0, sizeof(adapter->stats));
1561 err_out:
1562         return err;
1563 }
1564
1565 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
1566 {
1567         kfree(adapter->recv_ctx);
1568         adapter->recv_ctx = NULL;
1569
1570         if (adapter->ahw->fw_dump.tmpl_hdr) {
1571                 vfree(adapter->ahw->fw_dump.tmpl_hdr);
1572                 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1573         }
1574
1575         kfree(adapter->ahw->reset.buff);
1576         adapter->ahw->fw_dump.tmpl_hdr = NULL;
1577 }
1578
1579 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1580 {
1581         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1582         struct qlcnic_host_sds_ring *sds_ring;
1583         struct qlcnic_host_rds_ring *rds_ring;
1584         int ring;
1585         int ret;
1586
1587         netif_device_detach(netdev);
1588
1589         if (netif_running(netdev))
1590                 __qlcnic_down(adapter, netdev);
1591
1592         qlcnic_detach(adapter);
1593
1594         adapter->max_sds_rings = 1;
1595         adapter->ahw->diag_test = test;
1596         adapter->ahw->linkup = 0;
1597
1598         ret = qlcnic_attach(adapter);
1599         if (ret) {
1600                 netif_device_attach(netdev);
1601                 return ret;
1602         }
1603
1604         ret = qlcnic_fw_create_ctx(adapter);
1605         if (ret) {
1606                 qlcnic_detach(adapter);
1607                 netif_device_attach(netdev);
1608                 return ret;
1609         }
1610
1611         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1612                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1613                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1614         }
1615
1616         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1617                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1618                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1619                         qlcnic_enable_int(sds_ring);
1620                 }
1621         }
1622
1623         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
1624                 adapter->ahw->loopback_state = 0;
1625                 qlcnic_linkevent_request(adapter, 1);
1626         }
1627
1628         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1629
1630         return 0;
1631 }
1632
1633 /* Reset context in hardware only */
1634 static int
1635 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1636 {
1637         struct net_device *netdev = adapter->netdev;
1638
1639         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1640                 return -EBUSY;
1641
1642         netif_device_detach(netdev);
1643
1644         qlcnic_down(adapter, netdev);
1645
1646         qlcnic_up(adapter, netdev);
1647
1648         netif_device_attach(netdev);
1649
1650         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1651         dev_err(&adapter->pdev->dev, "%s:\n", __func__);
1652         return 0;
1653 }
1654
1655 int
1656 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1657 {
1658         int err = 0;
1659         struct net_device *netdev = adapter->netdev;
1660
1661         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1662                 return -EBUSY;
1663
1664         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1665
1666                 netif_device_detach(netdev);
1667
1668                 if (netif_running(netdev))
1669                         __qlcnic_down(adapter, netdev);
1670
1671                 qlcnic_detach(adapter);
1672
1673                 if (netif_running(netdev)) {
1674                         err = qlcnic_attach(adapter);
1675                         if (!err) {
1676                                 __qlcnic_up(adapter, netdev);
1677                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1678                         }
1679                 }
1680
1681                 netif_device_attach(netdev);
1682         }
1683
1684         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1685         return err;
1686 }
1687
1688 static int
1689 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
1690                     int pci_using_dac)
1691 {
1692         int err;
1693         struct pci_dev *pdev = adapter->pdev;
1694
1695         adapter->rx_csum = 1;
1696         adapter->ahw->mc_enabled = 0;
1697         adapter->ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
1698
1699         netdev->netdev_ops         = &qlcnic_netdev_ops;
1700         netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
1701
1702         qlcnic_change_mtu(netdev, netdev->mtu);
1703
1704         SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1705
1706         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
1707                              NETIF_F_IPV6_CSUM | NETIF_F_GRO |
1708                              NETIF_F_HW_VLAN_RX);
1709         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1710                                   NETIF_F_IPV6_CSUM);
1711
1712         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
1713                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
1714                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
1715         }
1716
1717         if (pci_using_dac) {
1718                 netdev->features |= NETIF_F_HIGHDMA;
1719                 netdev->vlan_features |= NETIF_F_HIGHDMA;
1720         }
1721
1722         if (qlcnic_vlan_tx_check(adapter))
1723                 netdev->features |= (NETIF_F_HW_VLAN_TX);
1724
1725         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1726                 netdev->features |= NETIF_F_LRO;
1727
1728         netdev->hw_features = netdev->features;
1729         netdev->irq = adapter->msix_entries[0].vector;
1730
1731         err = register_netdev(netdev);
1732         if (err) {
1733                 dev_err(&pdev->dev, "failed to register net device\n");
1734                 return err;
1735         }
1736
1737         return 0;
1738 }
1739
1740 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
1741 {
1742         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1743                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1744                 *pci_using_dac = 1;
1745         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1746                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1747                 *pci_using_dac = 0;
1748         else {
1749                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1750                 return -EIO;
1751         }
1752
1753         return 0;
1754 }
1755
1756 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
1757 {
1758         int ring;
1759         struct qlcnic_host_tx_ring *tx_ring;
1760
1761         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1762                 tx_ring = &adapter->tx_ring[ring];
1763                 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
1764                         vfree(tx_ring->cmd_buf_arr);
1765                         tx_ring->cmd_buf_arr = NULL;
1766                 }
1767         }
1768         if (adapter->tx_ring != NULL)
1769                 kfree(adapter->tx_ring);
1770 }
1771
1772 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
1773                           struct net_device *netdev)
1774 {
1775         int ring, vector, index;
1776         struct qlcnic_host_tx_ring *tx_ring;
1777         struct qlcnic_cmd_buffer *cmd_buf_arr;
1778
1779         tx_ring = kcalloc(adapter->max_drv_tx_rings,
1780                           sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
1781         if (tx_ring == NULL)
1782                 return -ENOMEM;
1783
1784         adapter->tx_ring = tx_ring;
1785
1786         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1787                 tx_ring = &adapter->tx_ring[ring];
1788                 tx_ring->num_desc = adapter->num_txd;
1789                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
1790                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
1791                 if (cmd_buf_arr == NULL) {
1792                         qlcnic_free_tx_rings(adapter);
1793                         return -ENOMEM;
1794                 }
1795                 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
1796                 tx_ring->cmd_buf_arr = cmd_buf_arr;
1797         }
1798
1799         if (qlcnic_83xx_check(adapter)) {
1800                 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1801                         tx_ring = &adapter->tx_ring[ring];
1802                         tx_ring->adapter = adapter;
1803                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
1804                                 index = adapter->max_sds_rings + ring;
1805                                 vector = adapter->msix_entries[index].vector;
1806                                 tx_ring->irq = vector;
1807                         }
1808                 }
1809         }
1810         return 0;
1811 }
1812
1813 static int
1814 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1815 {
1816         struct net_device *netdev = NULL;
1817         struct qlcnic_adapter *adapter = NULL;
1818         struct qlcnic_hardware_context *ahw;
1819         int err, pci_using_dac = -1;
1820         u32 capab2;
1821         char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
1822
1823         err = pci_enable_device(pdev);
1824         if (err)
1825                 return err;
1826
1827         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1828                 err = -ENODEV;
1829                 goto err_out_disable_pdev;
1830         }
1831
1832         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
1833         if (err)
1834                 goto err_out_disable_pdev;
1835
1836         err = pci_request_regions(pdev, qlcnic_driver_name);
1837         if (err)
1838                 goto err_out_disable_pdev;
1839
1840         pci_set_master(pdev);
1841         pci_enable_pcie_error_reporting(pdev);
1842
1843         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
1844         if (!ahw)
1845                 goto err_out_free_res;
1846
1847         if (ent->device == PCI_DEVICE_ID_QLOGIC_QLE824X) {
1848                 ahw->hw_ops = &qlcnic_hw_ops;
1849                 ahw->reg_tbl = (u32 *)qlcnic_reg_tbl;
1850         } else if (ent->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1851                 qlcnic_83xx_register_map(ahw);
1852         } else {
1853                 goto err_out_free_hw_res;
1854         }
1855
1856         err = qlcnic_setup_pci_map(pdev, ahw);
1857         if (err)
1858                 goto err_out_free_hw_res;
1859
1860         netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1861         if (!netdev) {
1862                 err = -ENOMEM;
1863                 goto err_out_iounmap;
1864         }
1865
1866         SET_NETDEV_DEV(netdev, &pdev->dev);
1867
1868         adapter = netdev_priv(netdev);
1869         adapter->netdev  = netdev;
1870         adapter->pdev    = pdev;
1871         adapter->ahw = ahw;
1872
1873         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
1874         if (adapter->qlcnic_wq == NULL) {
1875                 dev_err(&pdev->dev, "Failed to create workqueue\n");
1876                 goto err_out_free_netdev;
1877         }
1878
1879         err = qlcnic_alloc_adapter_resources(adapter);
1880         if (err)
1881                 goto err_out_free_netdev;
1882
1883         adapter->dev_rst_time = jiffies;
1884         adapter->ahw->revision_id = pdev->revision;
1885         if (qlcnic_mac_learn == FDB_MAC_LEARN)
1886                 adapter->fdb_mac_learn = true;
1887         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
1888                 adapter->drv_mac_learn = true;
1889         adapter->max_drv_tx_rings = 1;
1890
1891         rwlock_init(&adapter->ahw->crb_lock);
1892         mutex_init(&adapter->ahw->mem_lock);
1893
1894         spin_lock_init(&adapter->tx_clean_lock);
1895         INIT_LIST_HEAD(&adapter->mac_list);
1896
1897         if (qlcnic_82xx_check(adapter)) {
1898                 qlcnic_check_vf(adapter, ent);
1899                 adapter->portnum = adapter->ahw->pci_func;
1900                 err = qlcnic_start_firmware(adapter);
1901                 if (err) {
1902                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
1903                         goto err_out_free_hw;
1904                 }
1905
1906                 err = qlcnic_setup_idc_param(adapter);
1907                 if (err)
1908                         goto err_out_free_hw;
1909
1910                 adapter->flags |= QLCNIC_NEED_FLR;
1911         } else if (qlcnic_83xx_check(adapter)) {
1912                 qlcnic_83xx_check_vf(adapter, ent);
1913                 adapter->portnum = adapter->ahw->pci_func;
1914                 err = qlcnic_83xx_init(adapter);
1915                 if (err) {
1916                         dev_err(&pdev->dev, "%s: failed\n", __func__);
1917                         goto err_out_free_hw;
1918                 }
1919         } else {
1920                 dev_err(&pdev->dev,
1921                         "%s: failed. Please Reboot\n", __func__);
1922                 goto err_out_free_hw;
1923         }
1924
1925         if (qlcnic_read_mac_addr(adapter))
1926                 dev_warn(&pdev->dev, "failed to read mac addr\n");
1927
1928         if (adapter->portnum == 0) {
1929                 qlcnic_get_board_name(adapter, board_name);
1930
1931                 pr_info("%s: %s Board Chip rev 0x%x\n",
1932                         module_name(THIS_MODULE),
1933                         board_name, adapter->ahw->revision_id);
1934         }
1935         err = qlcnic_setup_intr(adapter, 0);
1936         if (err) {
1937                 dev_err(&pdev->dev, "Failed to setup interrupt\n");
1938                 goto err_out_disable_msi;
1939         }
1940
1941         if (qlcnic_83xx_check(adapter)) {
1942                 err = qlcnic_83xx_setup_mbx_intr(adapter);
1943                 if (err)
1944                         goto err_out_disable_msi;
1945         }
1946
1947         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
1948         if (err)
1949                 goto err_out_disable_mbx_intr;
1950
1951         if (qlcnic_82xx_check(adapter)) {
1952                 if (ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1953                         capab2 = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
1954                         if (capab2 & QLCNIC_FW_CAPABILITY_2_OCBB)
1955                                 qlcnic_fw_cmd_set_drv_version(adapter);
1956                 }
1957         }
1958
1959         pci_set_drvdata(pdev, adapter);
1960
1961         if (qlcnic_82xx_check(adapter))
1962                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
1963                                      FW_POLL_DELAY);
1964
1965         switch (adapter->ahw->port_type) {
1966         case QLCNIC_GBE:
1967                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1968                                 adapter->netdev->name);
1969                 break;
1970         case QLCNIC_XGBE:
1971                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1972                                 adapter->netdev->name);
1973                 break;
1974         }
1975
1976         if (qlcnic_get_act_pci_func(adapter))
1977                 goto err_out_disable_mbx_intr;
1978
1979         if (adapter->drv_mac_learn)
1980                 qlcnic_alloc_lb_filters_mem(adapter);
1981
1982         qlcnic_add_sysfs(adapter);
1983
1984         return 0;
1985
1986 err_out_disable_mbx_intr:
1987         if (qlcnic_83xx_check(adapter))
1988                 qlcnic_83xx_free_mbx_intr(adapter);
1989
1990 err_out_disable_msi:
1991         qlcnic_teardown_intr(adapter);
1992         qlcnic_cancel_idc_work(adapter);
1993         qlcnic_clr_all_drv_state(adapter, 0);
1994
1995 err_out_free_hw:
1996         qlcnic_free_adapter_resources(adapter);
1997
1998 err_out_free_netdev:
1999         free_netdev(netdev);
2000
2001 err_out_iounmap:
2002         qlcnic_cleanup_pci_map(adapter);
2003
2004 err_out_free_hw_res:
2005         kfree(ahw);
2006
2007 err_out_free_res:
2008         pci_release_regions(pdev);
2009
2010 err_out_disable_pdev:
2011         pci_set_drvdata(pdev, NULL);
2012         pci_disable_device(pdev);
2013         return err;
2014 }
2015
2016 static void qlcnic_remove(struct pci_dev *pdev)
2017 {
2018         struct qlcnic_adapter *adapter;
2019         struct net_device *netdev;
2020         struct qlcnic_hardware_context *ahw;
2021
2022         adapter = pci_get_drvdata(pdev);
2023         if (adapter == NULL)
2024                 return;
2025
2026         netdev = adapter->netdev;
2027
2028         qlcnic_cancel_idc_work(adapter);
2029         ahw = adapter->ahw;
2030
2031         unregister_netdev(netdev);
2032
2033         if (qlcnic_83xx_check(adapter)) {
2034                 qlcnic_83xx_free_mbx_intr(adapter);
2035                 qlcnic_83xx_register_nic_idc_func(adapter, 0);
2036                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2037         }
2038
2039         qlcnic_detach(adapter);
2040
2041         if (adapter->npars != NULL)
2042                 kfree(adapter->npars);
2043         if (adapter->eswitch != NULL)
2044                 kfree(adapter->eswitch);
2045
2046         if (qlcnic_82xx_check(adapter))
2047                 qlcnic_clr_all_drv_state(adapter, 0);
2048
2049         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2050
2051         qlcnic_free_lb_filters_mem(adapter);
2052
2053         qlcnic_teardown_intr(adapter);
2054
2055         qlcnic_remove_sysfs(adapter);
2056
2057         qlcnic_cleanup_pci_map(adapter);
2058
2059         qlcnic_release_firmware(adapter);
2060
2061         pci_disable_pcie_error_reporting(pdev);
2062         pci_release_regions(pdev);
2063         pci_disable_device(pdev);
2064         pci_set_drvdata(pdev, NULL);
2065
2066         if (adapter->qlcnic_wq) {
2067                 destroy_workqueue(adapter->qlcnic_wq);
2068                 adapter->qlcnic_wq = NULL;
2069         }
2070         qlcnic_free_adapter_resources(adapter);
2071         kfree(ahw);
2072         free_netdev(netdev);
2073 }
2074 static int __qlcnic_shutdown(struct pci_dev *pdev)
2075 {
2076         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2077         struct net_device *netdev = adapter->netdev;
2078         int retval;
2079
2080         netif_device_detach(netdev);
2081
2082         qlcnic_cancel_idc_work(adapter);
2083
2084         if (netif_running(netdev))
2085                 qlcnic_down(adapter, netdev);
2086
2087         if (qlcnic_82xx_check(adapter))
2088                 qlcnic_clr_all_drv_state(adapter, 0);
2089
2090         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2091
2092         retval = pci_save_state(pdev);
2093         if (retval)
2094                 return retval;
2095         if (qlcnic_82xx_check(adapter)) {
2096                 if (qlcnic_wol_supported(adapter)) {
2097                         pci_enable_wake(pdev, PCI_D3cold, 1);
2098                         pci_enable_wake(pdev, PCI_D3hot, 1);
2099                 }
2100         }
2101
2102         return 0;
2103 }
2104
2105 static void qlcnic_shutdown(struct pci_dev *pdev)
2106 {
2107         if (__qlcnic_shutdown(pdev))
2108                 return;
2109
2110         pci_disable_device(pdev);
2111 }
2112
2113 #ifdef CONFIG_PM
2114 static int
2115 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2116 {
2117         int retval;
2118
2119         retval = __qlcnic_shutdown(pdev);
2120         if (retval)
2121                 return retval;
2122
2123         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2124         return 0;
2125 }
2126
2127 static int
2128 qlcnic_resume(struct pci_dev *pdev)
2129 {
2130         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2131         struct net_device *netdev = adapter->netdev;
2132         int err;
2133
2134         err = pci_enable_device(pdev);
2135         if (err)
2136                 return err;
2137
2138         pci_set_power_state(pdev, PCI_D0);
2139         pci_set_master(pdev);
2140         pci_restore_state(pdev);
2141
2142         err = qlcnic_start_firmware(adapter);
2143         if (err) {
2144                 dev_err(&pdev->dev, "failed to start firmware\n");
2145                 return err;
2146         }
2147
2148         if (netif_running(netdev)) {
2149                 err = qlcnic_up(adapter, netdev);
2150                 if (err)
2151                         goto done;
2152
2153                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2154         }
2155 done:
2156         netif_device_attach(netdev);
2157         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
2158         return 0;
2159 }
2160 #endif
2161
2162 static int qlcnic_open(struct net_device *netdev)
2163 {
2164         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2165         int err;
2166
2167         netif_carrier_off(netdev);
2168
2169         err = qlcnic_attach(adapter);
2170         if (err)
2171                 return err;
2172
2173         err = __qlcnic_up(adapter, netdev);
2174         if (err)
2175                 goto err_out;
2176
2177         netif_start_queue(netdev);
2178
2179         return 0;
2180
2181 err_out:
2182         qlcnic_detach(adapter);
2183         return err;
2184 }
2185
2186 /*
2187  * qlcnic_close - Disables a network interface entry point
2188  */
2189 static int qlcnic_close(struct net_device *netdev)
2190 {
2191         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2192
2193         __qlcnic_down(adapter, netdev);
2194
2195         return 0;
2196 }
2197
2198 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2199 {
2200         void *head;
2201         int i;
2202         struct net_device *netdev = adapter->netdev;
2203         u32 filter_size = 0;
2204         u16 act_pci_func = 0;
2205
2206         if (adapter->fhash.fmax && adapter->fhash.fhead)
2207                 return;
2208
2209         act_pci_func = adapter->ahw->act_pci_func;
2210         spin_lock_init(&adapter->mac_learn_lock);
2211         spin_lock_init(&adapter->rx_mac_learn_lock);
2212
2213         if (qlcnic_82xx_check(adapter)) {
2214                 filter_size = QLCNIC_LB_MAX_FILTERS;
2215                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2216         } else {
2217                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2218                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2219         }
2220
2221         head = kcalloc(adapter->fhash.fbucket_size,
2222                        sizeof(struct hlist_head), GFP_ATOMIC);
2223
2224         if (!head)
2225                 return;
2226
2227         adapter->fhash.fmax = (filter_size / act_pci_func);
2228         adapter->fhash.fhead = head;
2229
2230         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2231                     act_pci_func, adapter->fhash.fmax);
2232
2233         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2234                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2235
2236         adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2237
2238         head = kcalloc(adapter->rx_fhash.fbucket_size,
2239                        sizeof(struct hlist_head), GFP_ATOMIC);
2240
2241         if (!head)
2242                 return;
2243
2244         adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2245         adapter->rx_fhash.fhead = head;
2246
2247         for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2248                 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2249 }
2250
2251 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2252 {
2253         if (adapter->fhash.fmax && adapter->fhash.fhead)
2254                 kfree(adapter->fhash.fhead);
2255
2256         adapter->fhash.fhead = NULL;
2257         adapter->fhash.fmax = 0;
2258
2259         if (adapter->rx_fhash.fmax && adapter->rx_fhash.fhead)
2260                 kfree(adapter->rx_fhash.fhead);
2261
2262         adapter->rx_fhash.fmax = 0;
2263         adapter->rx_fhash.fhead = NULL;
2264 }
2265
2266 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2267 {
2268         struct net_device *netdev = adapter->netdev;
2269         u32 temp_state, temp_val, temp = 0;
2270         int rv = 0;
2271
2272         if (qlcnic_83xx_check(adapter))
2273                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2274
2275         if (qlcnic_82xx_check(adapter))
2276                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2277
2278         temp_state = qlcnic_get_temp_state(temp);
2279         temp_val = qlcnic_get_temp_val(temp);
2280
2281         if (temp_state == QLCNIC_TEMP_PANIC) {
2282                 dev_err(&netdev->dev,
2283                        "Device temperature %d degrees C exceeds"
2284                        " maximum allowed. Hardware has been shut down.\n",
2285                        temp_val);
2286                 rv = 1;
2287         } else if (temp_state == QLCNIC_TEMP_WARN) {
2288                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2289                         dev_err(&netdev->dev,
2290                                "Device temperature %d degrees C "
2291                                "exceeds operating range."
2292                                " Immediate action needed.\n",
2293                                temp_val);
2294                 }
2295         } else {
2296                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2297                         dev_info(&netdev->dev,
2298                                "Device temperature is now %d degrees C"
2299                                " in normal range.\n", temp_val);
2300                 }
2301         }
2302         adapter->ahw->temp = temp_state;
2303         return rv;
2304 }
2305
2306 static void qlcnic_tx_timeout(struct net_device *netdev)
2307 {
2308         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2309
2310         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2311                 return;
2312
2313         dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2314
2315         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
2316                 adapter->need_fw_reset = 1;
2317         else
2318                 adapter->ahw->reset_context = 1;
2319 }
2320
2321 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2322 {
2323         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2324         struct net_device_stats *stats = &netdev->stats;
2325
2326         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2327         stats->tx_packets = adapter->stats.xmitfinished;
2328         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2329         stats->tx_bytes = adapter->stats.txbytes;
2330         stats->rx_dropped = adapter->stats.rxdropped;
2331         stats->tx_dropped = adapter->stats.txdropped;
2332
2333         return stats;
2334 }
2335
2336 irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
2337 {
2338         u32 status;
2339
2340         status = readl(adapter->isr_int_vec);
2341
2342         if (!(status & adapter->ahw->int_vec_bit))
2343                 return IRQ_NONE;
2344
2345         /* check interrupt state machine, to be sure */
2346         status = readl(adapter->crb_int_state_reg);
2347         if (!ISR_LEGACY_INT_TRIGGERED(status))
2348                 return IRQ_NONE;
2349
2350         writel(0xffffffff, adapter->tgt_status_reg);
2351         /* read twice to ensure write is flushed */
2352         readl(adapter->isr_int_vec);
2353         readl(adapter->isr_int_vec);
2354
2355         return IRQ_HANDLED;
2356 }
2357
2358 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2359 {
2360         struct qlcnic_host_sds_ring *sds_ring = data;
2361         struct qlcnic_adapter *adapter = sds_ring->adapter;
2362
2363         if (adapter->flags & QLCNIC_MSIX_ENABLED)
2364                 goto done;
2365         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2366                 writel(0xffffffff, adapter->tgt_status_reg);
2367                 goto done;
2368         }
2369
2370         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2371                 return IRQ_NONE;
2372
2373 done:
2374         adapter->ahw->diag_cnt++;
2375         qlcnic_enable_int(sds_ring);
2376         return IRQ_HANDLED;
2377 }
2378
2379 static irqreturn_t qlcnic_intr(int irq, void *data)
2380 {
2381         struct qlcnic_host_sds_ring *sds_ring = data;
2382         struct qlcnic_adapter *adapter = sds_ring->adapter;
2383
2384         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2385                 return IRQ_NONE;
2386
2387         napi_schedule(&sds_ring->napi);
2388
2389         return IRQ_HANDLED;
2390 }
2391
2392 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2393 {
2394         struct qlcnic_host_sds_ring *sds_ring = data;
2395         struct qlcnic_adapter *adapter = sds_ring->adapter;
2396
2397         /* clear interrupt */
2398         writel(0xffffffff, adapter->tgt_status_reg);
2399
2400         napi_schedule(&sds_ring->napi);
2401         return IRQ_HANDLED;
2402 }
2403
2404 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2405 {
2406         struct qlcnic_host_sds_ring *sds_ring = data;
2407
2408         napi_schedule(&sds_ring->napi);
2409         return IRQ_HANDLED;
2410 }
2411
2412 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
2413 {
2414         struct qlcnic_host_tx_ring *tx_ring = data;
2415
2416         napi_schedule(&tx_ring->napi);
2417         return IRQ_HANDLED;
2418 }
2419
2420 #ifdef CONFIG_NET_POLL_CONTROLLER
2421 static void qlcnic_poll_controller(struct net_device *netdev)
2422 {
2423         int ring;
2424         struct qlcnic_host_sds_ring *sds_ring;
2425         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2426         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2427
2428         disable_irq(adapter->irq);
2429         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2430                 sds_ring = &recv_ctx->sds_rings[ring];
2431                 qlcnic_intr(adapter->irq, sds_ring);
2432         }
2433         enable_irq(adapter->irq);
2434 }
2435 #endif
2436
2437 static void
2438 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2439 {
2440         u32 val;
2441
2442         val = adapter->portnum & 0xf;
2443         val |= encoding << 7;
2444         val |= (jiffies - adapter->dev_rst_time) << 8;
2445
2446         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2447         adapter->dev_rst_time = jiffies;
2448 }
2449
2450 static int
2451 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2452 {
2453         u32  val;
2454
2455         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2456                         state != QLCNIC_DEV_NEED_QUISCENT);
2457
2458         if (qlcnic_api_lock(adapter))
2459                 return -EIO;
2460
2461         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2462
2463         if (state == QLCNIC_DEV_NEED_RESET)
2464                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2465         else if (state == QLCNIC_DEV_NEED_QUISCENT)
2466                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2467
2468         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2469
2470         qlcnic_api_unlock(adapter);
2471
2472         return 0;
2473 }
2474
2475 static int
2476 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2477 {
2478         u32  val;
2479
2480         if (qlcnic_api_lock(adapter))
2481                 return -EBUSY;
2482
2483         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2484         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2485         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2486
2487         qlcnic_api_unlock(adapter);
2488
2489         return 0;
2490 }
2491
2492 static void
2493 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2494 {
2495         u32  val;
2496
2497         if (qlcnic_api_lock(adapter))
2498                 goto err;
2499
2500         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2501         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2502         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2503
2504         if (failed) {
2505                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2506                                     QLCNIC_DEV_FAILED);
2507                 dev_info(&adapter->pdev->dev,
2508                                 "Device state set to Failed. Please Reboot\n");
2509         } else if (!(val & 0x11111111))
2510                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2511                                     QLCNIC_DEV_COLD);
2512
2513         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2514         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2515         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2516
2517         qlcnic_api_unlock(adapter);
2518 err:
2519         adapter->fw_fail_cnt = 0;
2520         adapter->flags &= ~QLCNIC_FW_HANG;
2521         clear_bit(__QLCNIC_START_FW, &adapter->state);
2522         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2523 }
2524
2525 /* Grab api lock, before checking state */
2526 static int
2527 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2528 {
2529         int act, state, active_mask;
2530         struct qlcnic_hardware_context *ahw = adapter->ahw;
2531
2532         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2533         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2534
2535         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
2536                 active_mask = (~(1 << (ahw->pci_func * 4)));
2537                 act = act & active_mask;
2538         }
2539
2540         if (((state & 0x11111111) == (act & 0x11111111)) ||
2541                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2542                 return 0;
2543         else
2544                 return 1;
2545 }
2546
2547 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2548 {
2549         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2550
2551         if (val != QLCNIC_DRV_IDC_VER) {
2552                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2553                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2554         }
2555
2556         return 0;
2557 }
2558
2559 static int
2560 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2561 {
2562         u32 val, prev_state;
2563         u8 dev_init_timeo = adapter->dev_init_timeo;
2564         u8 portnum = adapter->portnum;
2565         u8 ret;
2566
2567         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2568                 return 1;
2569
2570         if (qlcnic_api_lock(adapter))
2571                 return -1;
2572
2573         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2574         if (!(val & (1 << (portnum * 4)))) {
2575                 QLC_DEV_SET_REF_CNT(val, portnum);
2576                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2577         }
2578
2579         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2580         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2581
2582         switch (prev_state) {
2583         case QLCNIC_DEV_COLD:
2584                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2585                                     QLCNIC_DEV_INITIALIZING);
2586                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
2587                                     QLCNIC_DRV_IDC_VER);
2588                 qlcnic_idc_debug_info(adapter, 0);
2589                 qlcnic_api_unlock(adapter);
2590                 return 1;
2591
2592         case QLCNIC_DEV_READY:
2593                 ret = qlcnic_check_idc_ver(adapter);
2594                 qlcnic_api_unlock(adapter);
2595                 return ret;
2596
2597         case QLCNIC_DEV_NEED_RESET:
2598                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2599                 QLC_DEV_SET_RST_RDY(val, portnum);
2600                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2601                 break;
2602
2603         case QLCNIC_DEV_NEED_QUISCENT:
2604                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2605                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
2606                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2607                 break;
2608
2609         case QLCNIC_DEV_FAILED:
2610                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
2611                 qlcnic_api_unlock(adapter);
2612                 return -1;
2613
2614         case QLCNIC_DEV_INITIALIZING:
2615         case QLCNIC_DEV_QUISCENT:
2616                 break;
2617         }
2618
2619         qlcnic_api_unlock(adapter);
2620
2621         do {
2622                 msleep(1000);
2623                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2624
2625                 if (prev_state == QLCNIC_DEV_QUISCENT)
2626                         continue;
2627         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
2628
2629         if (!dev_init_timeo) {
2630                 dev_err(&adapter->pdev->dev,
2631                         "Waiting for device to initialize timeout\n");
2632                 return -1;
2633         }
2634
2635         if (qlcnic_api_lock(adapter))
2636                 return -1;
2637
2638         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2639         QLC_DEV_CLR_RST_QSCNT(val, portnum);
2640         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2641
2642         ret = qlcnic_check_idc_ver(adapter);
2643         qlcnic_api_unlock(adapter);
2644
2645         return ret;
2646 }
2647
2648 static void
2649 qlcnic_fwinit_work(struct work_struct *work)
2650 {
2651         struct qlcnic_adapter *adapter = container_of(work,
2652                         struct qlcnic_adapter, fw_work.work);
2653         u32 dev_state = 0xf;
2654         u32 val;
2655
2656         if (qlcnic_api_lock(adapter))
2657                 goto err_ret;
2658
2659         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2660         if (dev_state == QLCNIC_DEV_QUISCENT ||
2661             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2662                 qlcnic_api_unlock(adapter);
2663                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2664                                                 FW_POLL_DELAY * 2);
2665                 return;
2666         }
2667
2668         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
2669                 qlcnic_api_unlock(adapter);
2670                 goto wait_npar;
2671         }
2672
2673         if (dev_state == QLCNIC_DEV_INITIALIZING ||
2674             dev_state == QLCNIC_DEV_READY) {
2675                 dev_info(&adapter->pdev->dev, "Detected state change from "
2676                                 "DEV_NEED_RESET, skipping ack check\n");
2677                 goto skip_ack_check;
2678         }
2679
2680         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2681                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2682                                         adapter->reset_ack_timeo);
2683                 goto skip_ack_check;
2684         }
2685
2686         if (!qlcnic_check_drv_state(adapter)) {
2687 skip_ack_check:
2688                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2689
2690                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2691                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2692                                             QLCNIC_DEV_INITIALIZING);
2693                         set_bit(__QLCNIC_START_FW, &adapter->state);
2694                         QLCDB(adapter, DRV, "Restarting fw\n");
2695                         qlcnic_idc_debug_info(adapter, 0);
2696                         val = QLC_SHARED_REG_RD32(adapter,
2697                                                   QLCNIC_CRB_DRV_STATE);
2698                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2699                         QLC_SHARED_REG_WR32(adapter,
2700                                             QLCNIC_CRB_DRV_STATE, val);
2701                 }
2702
2703                 qlcnic_api_unlock(adapter);
2704
2705                 rtnl_lock();
2706                 if (adapter->ahw->fw_dump.enable &&
2707                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2708                         QLCDB(adapter, DRV, "Take FW dump\n");
2709                         qlcnic_dump_fw(adapter);
2710                         adapter->flags |= QLCNIC_FW_HANG;
2711                 }
2712                 rtnl_unlock();
2713
2714                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
2715                 if (!adapter->nic_ops->start_firmware(adapter)) {
2716                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2717                         adapter->fw_wait_cnt = 0;
2718                         return;
2719                 }
2720                 goto err_ret;
2721         }
2722
2723         qlcnic_api_unlock(adapter);
2724
2725 wait_npar:
2726         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2727         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
2728
2729         switch (dev_state) {
2730         case QLCNIC_DEV_READY:
2731                 if (!qlcnic_start_firmware(adapter)) {
2732                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2733                         adapter->fw_wait_cnt = 0;
2734                         return;
2735                 }
2736         case QLCNIC_DEV_FAILED:
2737                 break;
2738         default:
2739                 qlcnic_schedule_work(adapter,
2740                         qlcnic_fwinit_work, FW_POLL_DELAY);
2741                 return;
2742         }
2743
2744 err_ret:
2745         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2746                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
2747         netif_device_attach(adapter->netdev);
2748         qlcnic_clr_all_drv_state(adapter, 0);
2749 }
2750
2751 static void
2752 qlcnic_detach_work(struct work_struct *work)
2753 {
2754         struct qlcnic_adapter *adapter = container_of(work,
2755                         struct qlcnic_adapter, fw_work.work);
2756         struct net_device *netdev = adapter->netdev;
2757         u32 status;
2758
2759         netif_device_detach(netdev);
2760
2761         /* Dont grab rtnl lock during Quiscent mode */
2762         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2763                 if (netif_running(netdev))
2764                         __qlcnic_down(adapter, netdev);
2765         } else
2766                 qlcnic_down(adapter, netdev);
2767
2768         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2769
2770         if (status & QLCNIC_RCODE_FATAL_ERROR) {
2771                 dev_err(&adapter->pdev->dev,
2772                         "Detaching the device: peg halt status1=0x%x\n",
2773                                         status);
2774
2775                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
2776                         dev_err(&adapter->pdev->dev,
2777                         "On board active cooling fan failed. "
2778                                 "Device has been halted.\n");
2779                         dev_err(&adapter->pdev->dev,
2780                                 "Replace the adapter.\n");
2781                 }
2782
2783                 goto err_ret;
2784         }
2785
2786         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
2787                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
2788                         adapter->ahw->temp);
2789                 goto err_ret;
2790         }
2791
2792         /* Dont ack if this instance is the reset owner */
2793         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2794                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
2795                         dev_err(&adapter->pdev->dev,
2796                                 "Failed to set driver state,"
2797                                         "detaching the device.\n");
2798                         goto err_ret;
2799                 }
2800         }
2801
2802         adapter->fw_wait_cnt = 0;
2803
2804         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2805
2806         return;
2807
2808 err_ret:
2809         netif_device_attach(netdev);
2810         qlcnic_clr_all_drv_state(adapter, 1);
2811 }
2812
2813 /*Transit NPAR state to NON Operational */
2814 static void
2815 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
2816 {
2817         u32 state;
2818
2819         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2820         if (state == QLCNIC_DEV_NPAR_NON_OPER)
2821                 return;
2822
2823         if (qlcnic_api_lock(adapter))
2824                 return;
2825         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2826                             QLCNIC_DEV_NPAR_NON_OPER);
2827         qlcnic_api_unlock(adapter);
2828 }
2829
2830 void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter, u32 key)
2831 {
2832         u32 state, xg_val = 0, gb_val = 0;
2833
2834         qlcnic_xg_set_xg0_mask(xg_val);
2835         qlcnic_xg_set_xg1_mask(xg_val);
2836         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
2837         qlcnic_gb_set_gb0_mask(gb_val);
2838         qlcnic_gb_set_gb1_mask(gb_val);
2839         qlcnic_gb_set_gb2_mask(gb_val);
2840         qlcnic_gb_set_gb3_mask(gb_val);
2841         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
2842         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
2843                                 " on all ports\n");
2844         adapter->need_fw_reset = 1;
2845
2846         if (qlcnic_api_lock(adapter))
2847                 return;
2848
2849         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2850
2851         if (state == QLCNIC_DEV_READY) {
2852                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2853                                     QLCNIC_DEV_NEED_RESET);
2854                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
2855                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
2856                 qlcnic_idc_debug_info(adapter, 0);
2857         }
2858
2859         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2860                             QLCNIC_DEV_NPAR_NON_OPER);
2861         qlcnic_api_unlock(adapter);
2862 }
2863
2864 /* Transit to NPAR READY state from NPAR NOT READY state */
2865 static void
2866 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
2867 {
2868         if (qlcnic_api_lock(adapter))
2869                 return;
2870
2871         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2872                             QLCNIC_DEV_NPAR_OPER);
2873         QLCDB(adapter, DRV, "NPAR operational state set\n");
2874
2875         qlcnic_api_unlock(adapter);
2876 }
2877
2878 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2879                           work_func_t func, int delay)
2880 {
2881         if (test_bit(__QLCNIC_AER, &adapter->state))
2882                 return;
2883
2884         INIT_DELAYED_WORK(&adapter->fw_work, func);
2885         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
2886                            round_jiffies_relative(delay));
2887 }
2888
2889 static void
2890 qlcnic_attach_work(struct work_struct *work)
2891 {
2892         struct qlcnic_adapter *adapter = container_of(work,
2893                                 struct qlcnic_adapter, fw_work.work);
2894         struct net_device *netdev = adapter->netdev;
2895         u32 npar_state;
2896
2897         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
2898                 npar_state = QLC_SHARED_REG_RD32(adapter,
2899                                                  QLCNIC_CRB_DEV_NPAR_STATE);
2900                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
2901                         qlcnic_clr_all_drv_state(adapter, 0);
2902                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
2903                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
2904                                                         FW_POLL_DELAY);
2905                 else
2906                         goto attach;
2907                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
2908                 return;
2909         }
2910 attach:
2911         if (netif_running(netdev)) {
2912                 if (qlcnic_up(adapter, netdev))
2913                         goto done;
2914
2915                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2916         }
2917
2918 done:
2919         netif_device_attach(netdev);
2920         adapter->fw_fail_cnt = 0;
2921         adapter->flags &= ~QLCNIC_FW_HANG;
2922         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2923
2924         if (!qlcnic_clr_drv_state(adapter))
2925                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2926                                                         FW_POLL_DELAY);
2927 }
2928
2929 static int
2930 qlcnic_check_health(struct qlcnic_adapter *adapter)
2931 {
2932         u32 state = 0, heartbeat;
2933         u32 peg_status;
2934
2935         if (qlcnic_check_temp(adapter))
2936                 goto detach;
2937
2938         if (adapter->need_fw_reset)
2939                 qlcnic_dev_request_reset(adapter, 0);
2940
2941         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2942         if (state == QLCNIC_DEV_NEED_RESET) {
2943                 qlcnic_set_npar_non_operational(adapter);
2944                 adapter->need_fw_reset = 1;
2945         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
2946                 goto detach;
2947
2948         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
2949         if (heartbeat != adapter->heartbeat) {
2950                 adapter->heartbeat = heartbeat;
2951                 adapter->fw_fail_cnt = 0;
2952                 if (adapter->need_fw_reset)
2953                         goto detach;
2954
2955                 if (adapter->ahw->reset_context && qlcnic_auto_fw_reset) {
2956                         qlcnic_reset_hw_context(adapter);
2957                         adapter->netdev->trans_start = jiffies;
2958                 }
2959
2960                 return 0;
2961         }
2962
2963         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2964                 return 0;
2965
2966         adapter->flags |= QLCNIC_FW_HANG;
2967
2968         qlcnic_dev_request_reset(adapter, 0);
2969
2970         if (qlcnic_auto_fw_reset)
2971                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
2972
2973         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
2974         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2975         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
2976                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
2977                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
2978                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
2979                         "PEG_NET_4_PC: 0x%x\n",
2980                         peg_status,
2981                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
2982                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c),
2983                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c),
2984                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c),
2985                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c),
2986                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c));
2987         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
2988                 dev_err(&adapter->pdev->dev,
2989                         "Firmware aborted with error code 0x00006700. "
2990                                 "Device is being reset.\n");
2991 detach:
2992         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
2993                 QLCNIC_DEV_NEED_RESET;
2994
2995         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
2996                                                       &adapter->state)) {
2997
2998                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
2999                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3000         }
3001
3002         return 1;
3003 }
3004
3005 static void
3006 qlcnic_fw_poll_work(struct work_struct *work)
3007 {
3008         struct qlcnic_adapter *adapter = container_of(work,
3009                                 struct qlcnic_adapter, fw_work.work);
3010
3011         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3012                 goto reschedule;
3013
3014
3015         if (qlcnic_check_health(adapter))
3016                 return;
3017
3018         if (adapter->fhash.fnum)
3019                 qlcnic_prune_lb_filters(adapter);
3020
3021 reschedule:
3022         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3023 }
3024
3025 static int qlcnic_is_first_func(struct pci_dev *pdev)
3026 {
3027         struct pci_dev *oth_pdev;
3028         int val = pdev->devfn;
3029
3030         while (val-- > 0) {
3031                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3032                         (pdev->bus), pdev->bus->number,
3033                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3034                 if (!oth_pdev)
3035                         continue;
3036
3037                 if (oth_pdev->current_state != PCI_D3cold) {
3038                         pci_dev_put(oth_pdev);
3039                         return 0;
3040                 }
3041                 pci_dev_put(oth_pdev);
3042         }
3043         return 1;
3044 }
3045
3046 static int qlcnic_attach_func(struct pci_dev *pdev)
3047 {
3048         int err, first_func;
3049         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3050         struct net_device *netdev = adapter->netdev;
3051
3052         pdev->error_state = pci_channel_io_normal;
3053
3054         err = pci_enable_device(pdev);
3055         if (err)
3056                 return err;
3057
3058         pci_set_power_state(pdev, PCI_D0);
3059         pci_set_master(pdev);
3060         pci_restore_state(pdev);
3061
3062         first_func = qlcnic_is_first_func(pdev);
3063
3064         if (qlcnic_api_lock(adapter))
3065                 return -EINVAL;
3066
3067         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3068                 adapter->need_fw_reset = 1;
3069                 set_bit(__QLCNIC_START_FW, &adapter->state);
3070                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3071                                     QLCNIC_DEV_INITIALIZING);
3072                 QLCDB(adapter, DRV, "Restarting fw\n");
3073         }
3074         qlcnic_api_unlock(adapter);
3075
3076         err = qlcnic_start_firmware(adapter);
3077         if (err)
3078                 return err;
3079
3080         qlcnic_clr_drv_state(adapter);
3081         kfree(adapter->msix_entries);
3082         adapter->msix_entries = NULL;
3083         err = qlcnic_setup_intr(adapter, 0);
3084
3085         if (err) {
3086                 kfree(adapter->msix_entries);
3087                 netdev_err(netdev, "failed to setup interrupt\n");
3088                 return err;
3089         }
3090
3091         if (qlcnic_83xx_check(adapter)) {
3092                 /* register for NIC IDC AEN Events */
3093                 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3094                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3095                 if (err) {
3096                         dev_err(&adapter->pdev->dev,
3097                                 "failed to setup mbx interrupt\n");
3098                         qlcnic_clr_all_drv_state(adapter, 1);
3099                         clear_bit(__QLCNIC_AER, &adapter->state);
3100                         goto done;
3101                 }
3102         }
3103
3104         if (netif_running(netdev)) {
3105                 err = qlcnic_attach(adapter);
3106                 if (err) {
3107                         qlcnic_clr_all_drv_state(adapter, 1);
3108                         clear_bit(__QLCNIC_AER, &adapter->state);
3109                         netif_device_attach(netdev);
3110                         return err;
3111                 }
3112
3113                 err = qlcnic_up(adapter, netdev);
3114                 if (err)
3115                         goto done;
3116
3117                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3118         }
3119  done:
3120         netif_device_attach(netdev);
3121         return err;
3122 }
3123
3124 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3125                                                 pci_channel_state_t state)
3126 {
3127         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3128         struct net_device *netdev = adapter->netdev;
3129
3130         if (state == pci_channel_io_perm_failure)
3131                 return PCI_ERS_RESULT_DISCONNECT;
3132
3133         if (state == pci_channel_io_normal)
3134                 return PCI_ERS_RESULT_RECOVERED;
3135
3136         set_bit(__QLCNIC_AER, &adapter->state);
3137         netif_device_detach(netdev);
3138
3139         cancel_delayed_work_sync(&adapter->fw_work);
3140
3141         if (netif_running(netdev))
3142                 qlcnic_down(adapter, netdev);
3143
3144         if (qlcnic_83xx_check(adapter)) {
3145                 qlcnic_83xx_free_mbx_intr(adapter);
3146                 qlcnic_83xx_register_nic_idc_func(adapter, 0);
3147                 cancel_delayed_work_sync(&adapter->idc_aen_work);
3148         }
3149
3150         qlcnic_detach(adapter);
3151         qlcnic_teardown_intr(adapter);
3152
3153         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3154
3155         pci_save_state(pdev);
3156         pci_disable_device(pdev);
3157
3158         return PCI_ERS_RESULT_NEED_RESET;
3159 }
3160
3161 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3162 {
3163         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3164                                 PCI_ERS_RESULT_RECOVERED;
3165 }
3166
3167 static void qlcnic_io_resume(struct pci_dev *pdev)
3168 {
3169         u32 state;
3170         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3171
3172         pci_cleanup_aer_uncorrect_error_status(pdev);
3173         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3174         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3175                                                             &adapter->state))
3176                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3177                                                 FW_POLL_DELAY);
3178 }
3179
3180 static int
3181 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3182 {
3183         int err;
3184
3185         err = qlcnic_can_start_firmware(adapter);
3186         if (err)
3187                 return err;
3188
3189         err = qlcnic_check_npar_opertional(adapter);
3190         if (err)
3191                 return err;
3192
3193         err = qlcnic_initialize_nic(adapter);
3194         if (err)
3195                 return err;
3196
3197         qlcnic_check_options(adapter);
3198
3199         err = qlcnic_set_eswitch_port_config(adapter);
3200         if (err)
3201                 return err;
3202
3203         adapter->need_fw_reset = 0;
3204
3205         return err;
3206 }
3207
3208 int qlcnic_validate_max_rss(u8 max_hw, u8 val)
3209 {
3210         u32 max_allowed;
3211
3212         if (max_hw > QLC_MAX_SDS_RINGS) {
3213                 max_hw = QLC_MAX_SDS_RINGS;
3214                 pr_info("max rss reset to %d\n", QLC_MAX_SDS_RINGS);
3215         }
3216
3217         max_allowed = rounddown_pow_of_two(min_t(int, max_hw,
3218                                                  num_online_cpus()));
3219         if ((val > max_allowed) || (val < 2) || !is_power_of_2(val)) {
3220                 pr_info("rss_ring valid range [2 - %x] in powers of 2\n",
3221                         max_allowed);
3222                 return -EINVAL;
3223         }
3224         return 0;
3225 }
3226
3227 int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data, size_t len)
3228 {
3229         int err;
3230         struct net_device *netdev = adapter->netdev;
3231
3232         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3233                 return -EBUSY;
3234
3235         netif_device_detach(netdev);
3236         if (netif_running(netdev))
3237                 __qlcnic_down(adapter, netdev);
3238
3239         qlcnic_detach(adapter);
3240
3241         if (qlcnic_83xx_check(adapter))
3242                 qlcnic_83xx_free_mbx_intr(adapter);
3243
3244         qlcnic_teardown_intr(adapter);
3245         err = qlcnic_setup_intr(adapter, data);
3246         if (err) {
3247                 kfree(adapter->msix_entries);
3248                 netdev_err(netdev, "failed to setup interrupt\n");
3249                 return err;
3250         }
3251
3252         if (qlcnic_83xx_check(adapter)) {
3253                 /* register for NIC IDC AEN Events */
3254                 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3255                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3256                 if (err) {
3257                         dev_err(&adapter->pdev->dev,
3258                                 "failed to setup mbx interrupt\n");
3259                         goto done;
3260                 }
3261         }
3262
3263         if (netif_running(netdev)) {
3264                 err = qlcnic_attach(adapter);
3265                 if (err)
3266                         goto done;
3267                 err = __qlcnic_up(adapter, netdev);
3268                 if (err)
3269                         goto done;
3270                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3271         }
3272         err = len;
3273  done:
3274         netif_device_attach(netdev);
3275         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3276         return err;
3277 }
3278
3279 #ifdef CONFIG_INET
3280
3281 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
3282
3283 static void
3284 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
3285                         struct net_device *dev, unsigned long event)
3286 {
3287         struct in_device *indev;
3288
3289         indev = in_dev_get(dev);
3290         if (!indev)
3291                 return;
3292
3293         for_ifa(indev) {
3294                 switch (event) {
3295                 case NETDEV_UP:
3296                         qlcnic_config_ipaddr(adapter,
3297                                         ifa->ifa_address, QLCNIC_IP_UP);
3298                         break;
3299                 case NETDEV_DOWN:
3300                         qlcnic_config_ipaddr(adapter,
3301                                         ifa->ifa_address, QLCNIC_IP_DOWN);
3302                         break;
3303                 default:
3304                         break;
3305                 }
3306         } endfor_ifa(indev);
3307
3308         in_dev_put(indev);
3309 }
3310
3311 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
3312 {
3313         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3314         struct net_device *dev;
3315         u16 vid;
3316
3317         qlcnic_config_indev_addr(adapter, netdev, event);
3318
3319         rcu_read_lock();
3320         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
3321                 dev = __vlan_find_dev_deep(netdev, vid);
3322                 if (!dev)
3323                         continue;
3324                 qlcnic_config_indev_addr(adapter, dev, event);
3325         }
3326         rcu_read_unlock();
3327 }
3328
3329 static int qlcnic_netdev_event(struct notifier_block *this,
3330                                  unsigned long event, void *ptr)
3331 {
3332         struct qlcnic_adapter *adapter;
3333         struct net_device *dev = (struct net_device *)ptr;
3334
3335 recheck:
3336         if (dev == NULL)
3337                 goto done;
3338
3339         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3340                 dev = vlan_dev_real_dev(dev);
3341                 goto recheck;
3342         }
3343
3344         if (!is_qlcnic_netdev(dev))
3345                 goto done;
3346
3347         adapter = netdev_priv(dev);
3348
3349         if (!adapter)
3350                 goto done;
3351
3352         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3353                 goto done;
3354
3355         qlcnic_config_indev_addr(adapter, dev, event);
3356 done:
3357         return NOTIFY_DONE;
3358 }
3359
3360 static int
3361 qlcnic_inetaddr_event(struct notifier_block *this,
3362                 unsigned long event, void *ptr)
3363 {
3364         struct qlcnic_adapter *adapter;
3365         struct net_device *dev;
3366
3367         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3368
3369         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3370
3371 recheck:
3372         if (dev == NULL)
3373                 goto done;
3374
3375         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3376                 dev = vlan_dev_real_dev(dev);
3377                 goto recheck;
3378         }
3379
3380         if (!is_qlcnic_netdev(dev))
3381                 goto done;
3382
3383         adapter = netdev_priv(dev);
3384
3385         if (!adapter)
3386                 goto done;
3387
3388         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3389                 goto done;
3390
3391         switch (event) {
3392         case NETDEV_UP:
3393                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
3394
3395                 break;
3396         case NETDEV_DOWN:
3397                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
3398
3399                 break;
3400         default:
3401                 break;
3402         }
3403
3404 done:
3405         return NOTIFY_DONE;
3406 }
3407
3408 static struct notifier_block    qlcnic_netdev_cb = {
3409         .notifier_call = qlcnic_netdev_event,
3410 };
3411
3412 static struct notifier_block qlcnic_inetaddr_cb = {
3413         .notifier_call = qlcnic_inetaddr_event,
3414 };
3415 #else
3416 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
3417 { }
3418 #endif
3419 static const struct pci_error_handlers qlcnic_err_handler = {
3420         .error_detected = qlcnic_io_error_detected,
3421         .slot_reset = qlcnic_io_slot_reset,
3422         .resume = qlcnic_io_resume,
3423 };
3424
3425 static struct pci_driver qlcnic_driver = {
3426         .name = qlcnic_driver_name,
3427         .id_table = qlcnic_pci_tbl,
3428         .probe = qlcnic_probe,
3429         .remove = qlcnic_remove,
3430 #ifdef CONFIG_PM
3431         .suspend = qlcnic_suspend,
3432         .resume = qlcnic_resume,
3433 #endif
3434         .shutdown = qlcnic_shutdown,
3435         .err_handler = &qlcnic_err_handler
3436
3437 };
3438
3439 static int __init qlcnic_init_module(void)
3440 {
3441         int ret;
3442
3443         printk(KERN_INFO "%s\n", qlcnic_driver_string);
3444
3445 #ifdef CONFIG_INET
3446         register_netdevice_notifier(&qlcnic_netdev_cb);
3447         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
3448 #endif
3449
3450         ret = pci_register_driver(&qlcnic_driver);
3451         if (ret) {
3452 #ifdef CONFIG_INET
3453                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3454                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3455 #endif
3456         }
3457
3458         return ret;
3459 }
3460
3461 module_init(qlcnic_init_module);
3462
3463 static void __exit qlcnic_exit_module(void)
3464 {
3465         pci_unregister_driver(&qlcnic_driver);
3466
3467 #ifdef CONFIG_INET
3468         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3469         unregister_netdevice_notifier(&qlcnic_netdev_cb);
3470 #endif
3471 }
3472
3473 module_exit(qlcnic_exit_module);