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 opertional 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                         handler = qlcnic_intr;
1273                 }
1274         }
1275         adapter->irq = netdev->irq;
1276
1277         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1278                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1279                         sds_ring = &recv_ctx->sds_rings[ring];
1280                         snprintf(sds_ring->name, sizeof(int) + IFNAMSIZ,
1281                                  "%s[%d]", netdev->name, ring);
1282                         err = request_irq(sds_ring->irq, handler, flags,
1283                                           sds_ring->name, sds_ring);
1284                         if (err)
1285                                 return err;
1286                 }
1287                 if (qlcnic_83xx_check(adapter) &&
1288                     (adapter->flags & QLCNIC_MSIX_ENABLED)) {
1289                         handler = qlcnic_msix_tx_intr;
1290                         for (ring = 0; ring < adapter->max_drv_tx_rings;
1291                              ring++) {
1292                                 tx_ring = &adapter->tx_ring[ring];
1293                                 snprintf(tx_ring->name, sizeof(int) + IFNAMSIZ,
1294                                          "%s[%d]", netdev->name,
1295                                 adapter->max_sds_rings + ring);
1296                                 err = request_irq(tx_ring->irq, handler, flags,
1297                                                   tx_ring->name, tx_ring);
1298                                 if (err)
1299                                         return err;
1300                         }
1301                 }
1302         }
1303         return 0;
1304 }
1305
1306 static void
1307 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1308 {
1309         int ring;
1310         struct qlcnic_host_sds_ring *sds_ring;
1311         struct qlcnic_host_tx_ring *tx_ring;
1312
1313         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1314
1315         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1316                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1317                         sds_ring = &recv_ctx->sds_rings[ring];
1318                         free_irq(sds_ring->irq, sds_ring);
1319                 }
1320                 if (qlcnic_83xx_check(adapter)) {
1321                         for (ring = 0; ring < adapter->max_drv_tx_rings;
1322                              ring++) {
1323                                 tx_ring = &adapter->tx_ring[ring];
1324                                 if (tx_ring->irq)
1325                                         free_irq(tx_ring->irq, tx_ring);
1326                         }
1327                 }
1328         }
1329 }
1330
1331 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1332 {
1333         int ring;
1334         u32 capab2;
1335
1336         struct qlcnic_host_rds_ring *rds_ring;
1337
1338         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1339                 return -EIO;
1340
1341         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1342                 return 0;
1343         if (qlcnic_set_eswitch_port_config(adapter))
1344                 return -EIO;
1345
1346         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1347                 capab2 = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
1348                 if (capab2 & QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1349                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1350         }
1351
1352         if (qlcnic_fw_create_ctx(adapter))
1353                 return -EIO;
1354
1355         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1356                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1357                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1358         }
1359
1360         qlcnic_set_multi(netdev);
1361         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1362
1363         adapter->ahw->linkup = 0;
1364
1365         if (adapter->max_sds_rings > 1)
1366                 qlcnic_config_rss(adapter, 1);
1367
1368         qlcnic_config_intr_coalesce(adapter);
1369
1370         if (netdev->features & NETIF_F_LRO)
1371                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1372
1373         qlcnic_napi_enable(adapter);
1374
1375         qlcnic_linkevent_request(adapter, 1);
1376
1377         adapter->ahw->reset_context = 0;
1378         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1379         return 0;
1380 }
1381
1382 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1383 {
1384         int err = 0;
1385
1386         rtnl_lock();
1387         if (netif_running(netdev))
1388                 err = __qlcnic_up(adapter, netdev);
1389         rtnl_unlock();
1390
1391         return err;
1392 }
1393
1394 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1395 {
1396         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1397                 return;
1398
1399         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1400                 return;
1401
1402         smp_mb();
1403         spin_lock(&adapter->tx_clean_lock);
1404         netif_carrier_off(netdev);
1405         netif_tx_disable(netdev);
1406
1407         qlcnic_free_mac_list(adapter);
1408
1409         if (adapter->fhash.fnum)
1410                 qlcnic_delete_lb_filters(adapter);
1411
1412         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1413
1414         qlcnic_napi_disable(adapter);
1415
1416         qlcnic_fw_destroy_ctx(adapter);
1417         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1418
1419         qlcnic_reset_rx_buffers_list(adapter);
1420         qlcnic_release_tx_buffers(adapter);
1421         spin_unlock(&adapter->tx_clean_lock);
1422 }
1423
1424 /* Usage: During suspend and firmware recovery module */
1425
1426 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1427 {
1428         rtnl_lock();
1429         if (netif_running(netdev))
1430                 __qlcnic_down(adapter, netdev);
1431         rtnl_unlock();
1432
1433 }
1434
1435 int
1436 qlcnic_attach(struct qlcnic_adapter *adapter)
1437 {
1438         struct net_device *netdev = adapter->netdev;
1439         struct pci_dev *pdev = adapter->pdev;
1440         int err;
1441
1442         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1443                 return 0;
1444
1445         err = qlcnic_napi_add(adapter, netdev);
1446         if (err)
1447                 return err;
1448
1449         err = qlcnic_alloc_sw_resources(adapter);
1450         if (err) {
1451                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1452                 goto err_out_napi_del;
1453         }
1454
1455         err = qlcnic_alloc_hw_resources(adapter);
1456         if (err) {
1457                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1458                 goto err_out_free_sw;
1459         }
1460
1461         err = qlcnic_request_irq(adapter);
1462         if (err) {
1463                 dev_err(&pdev->dev, "failed to setup interrupt\n");
1464                 goto err_out_free_hw;
1465         }
1466
1467         qlcnic_create_sysfs_entries(adapter);
1468
1469         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1470         return 0;
1471
1472 err_out_free_hw:
1473         qlcnic_free_hw_resources(adapter);
1474 err_out_free_sw:
1475         qlcnic_free_sw_resources(adapter);
1476 err_out_napi_del:
1477         qlcnic_napi_del(adapter);
1478         return err;
1479 }
1480
1481 void qlcnic_detach(struct qlcnic_adapter *adapter)
1482 {
1483         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1484                 return;
1485
1486         qlcnic_remove_sysfs_entries(adapter);
1487
1488         qlcnic_free_hw_resources(adapter);
1489         qlcnic_release_rx_buffers(adapter);
1490         qlcnic_free_irq(adapter);
1491         qlcnic_napi_del(adapter);
1492         qlcnic_free_sw_resources(adapter);
1493
1494         adapter->is_up = 0;
1495 }
1496
1497 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1498 {
1499         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1500         struct qlcnic_host_sds_ring *sds_ring;
1501         int ring;
1502
1503         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1504         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1505                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1506                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1507                         qlcnic_disable_int(sds_ring);
1508                 }
1509         }
1510
1511         qlcnic_fw_destroy_ctx(adapter);
1512
1513         qlcnic_detach(adapter);
1514
1515         adapter->ahw->diag_test = 0;
1516         adapter->max_sds_rings = max_sds_rings;
1517
1518         if (qlcnic_attach(adapter))
1519                 goto out;
1520
1521         if (netif_running(netdev))
1522                 __qlcnic_up(adapter, netdev);
1523 out:
1524         netif_device_attach(netdev);
1525 }
1526
1527 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
1528 {
1529         int err = 0;
1530         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
1531                                 GFP_KERNEL);
1532         if (!adapter->recv_ctx) {
1533                 err = -ENOMEM;
1534                 goto err_out;
1535         }
1536         /* Initialize interrupt coalesce parameters */
1537         adapter->ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1538         adapter->ahw->coal.rx_time_us = QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
1539         adapter->ahw->coal.rx_packets = QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
1540         /* clear stats */
1541         memset(&adapter->stats, 0, sizeof(adapter->stats));
1542 err_out:
1543         return err;
1544 }
1545
1546 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
1547 {
1548         kfree(adapter->recv_ctx);
1549         adapter->recv_ctx = NULL;
1550
1551         if (adapter->ahw->fw_dump.tmpl_hdr) {
1552                 vfree(adapter->ahw->fw_dump.tmpl_hdr);
1553                 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1554         }
1555
1556         kfree(adapter->ahw->reset.buff);
1557         adapter->ahw->fw_dump.tmpl_hdr = NULL;
1558 }
1559
1560 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1561 {
1562         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1563         struct qlcnic_host_sds_ring *sds_ring;
1564         struct qlcnic_host_rds_ring *rds_ring;
1565         int ring;
1566         int ret;
1567
1568         netif_device_detach(netdev);
1569
1570         if (netif_running(netdev))
1571                 __qlcnic_down(adapter, netdev);
1572
1573         qlcnic_detach(adapter);
1574
1575         adapter->max_sds_rings = 1;
1576         adapter->ahw->diag_test = test;
1577         adapter->ahw->linkup = 0;
1578
1579         ret = qlcnic_attach(adapter);
1580         if (ret) {
1581                 netif_device_attach(netdev);
1582                 return ret;
1583         }
1584
1585         ret = qlcnic_fw_create_ctx(adapter);
1586         if (ret) {
1587                 qlcnic_detach(adapter);
1588                 netif_device_attach(netdev);
1589                 return ret;
1590         }
1591
1592         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1593                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1594                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1595         }
1596
1597         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1598                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1599                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1600                         qlcnic_enable_int(sds_ring);
1601                 }
1602         }
1603
1604         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
1605                 adapter->ahw->loopback_state = 0;
1606                 qlcnic_linkevent_request(adapter, 1);
1607         }
1608
1609         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1610
1611         return 0;
1612 }
1613
1614 /* Reset context in hardware only */
1615 static int
1616 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1617 {
1618         struct net_device *netdev = adapter->netdev;
1619
1620         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1621                 return -EBUSY;
1622
1623         netif_device_detach(netdev);
1624
1625         qlcnic_down(adapter, netdev);
1626
1627         qlcnic_up(adapter, netdev);
1628
1629         netif_device_attach(netdev);
1630
1631         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1632         dev_err(&adapter->pdev->dev, "%s:\n", __func__);
1633         return 0;
1634 }
1635
1636 int
1637 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1638 {
1639         int err = 0;
1640         struct net_device *netdev = adapter->netdev;
1641
1642         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1643                 return -EBUSY;
1644
1645         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1646
1647                 netif_device_detach(netdev);
1648
1649                 if (netif_running(netdev))
1650                         __qlcnic_down(adapter, netdev);
1651
1652                 qlcnic_detach(adapter);
1653
1654                 if (netif_running(netdev)) {
1655                         err = qlcnic_attach(adapter);
1656                         if (!err) {
1657                                 __qlcnic_up(adapter, netdev);
1658                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1659                         }
1660                 }
1661
1662                 netif_device_attach(netdev);
1663         }
1664
1665         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1666         return err;
1667 }
1668
1669 static int
1670 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
1671                     int pci_using_dac)
1672 {
1673         int err;
1674         struct pci_dev *pdev = adapter->pdev;
1675
1676         adapter->rx_csum = 1;
1677         adapter->ahw->mc_enabled = 0;
1678         adapter->ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
1679
1680         netdev->netdev_ops         = &qlcnic_netdev_ops;
1681         netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
1682
1683         qlcnic_change_mtu(netdev, netdev->mtu);
1684
1685         SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1686
1687         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
1688                              NETIF_F_IPV6_CSUM | NETIF_F_GRO |
1689                              NETIF_F_HW_VLAN_RX);
1690         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1691                                   NETIF_F_IPV6_CSUM);
1692
1693         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
1694                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
1695                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
1696         }
1697
1698         if (pci_using_dac) {
1699                 netdev->features |= NETIF_F_HIGHDMA;
1700                 netdev->vlan_features |= NETIF_F_HIGHDMA;
1701         }
1702
1703         if (qlcnic_vlan_tx_check(adapter))
1704                 netdev->features |= (NETIF_F_HW_VLAN_TX);
1705
1706         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1707                 netdev->features |= NETIF_F_LRO;
1708
1709         netdev->hw_features = netdev->features;
1710         netdev->irq = adapter->msix_entries[0].vector;
1711
1712         err = register_netdev(netdev);
1713         if (err) {
1714                 dev_err(&pdev->dev, "failed to register net device\n");
1715                 return err;
1716         }
1717
1718         return 0;
1719 }
1720
1721 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
1722 {
1723         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1724                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1725                 *pci_using_dac = 1;
1726         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1727                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1728                 *pci_using_dac = 0;
1729         else {
1730                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1731                 return -EIO;
1732         }
1733
1734         return 0;
1735 }
1736
1737 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
1738 {
1739         int ring;
1740         struct qlcnic_host_tx_ring *tx_ring;
1741
1742         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1743                 tx_ring = &adapter->tx_ring[ring];
1744                 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
1745                         vfree(tx_ring->cmd_buf_arr);
1746                         tx_ring->cmd_buf_arr = NULL;
1747                 }
1748         }
1749         if (adapter->tx_ring != NULL)
1750                 kfree(adapter->tx_ring);
1751 }
1752
1753 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
1754                           struct net_device *netdev)
1755 {
1756         int ring, vector, index;
1757         struct qlcnic_host_tx_ring *tx_ring;
1758         struct qlcnic_cmd_buffer *cmd_buf_arr;
1759
1760         tx_ring = kcalloc(adapter->max_drv_tx_rings,
1761                           sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
1762         if (tx_ring == NULL)
1763                 return -ENOMEM;
1764
1765         adapter->tx_ring = tx_ring;
1766
1767         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1768                 tx_ring = &adapter->tx_ring[ring];
1769                 tx_ring->num_desc = adapter->num_txd;
1770                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
1771                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
1772                 if (cmd_buf_arr == NULL) {
1773                         qlcnic_free_tx_rings(adapter);
1774                         return -ENOMEM;
1775                 }
1776                 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
1777                 tx_ring->cmd_buf_arr = cmd_buf_arr;
1778         }
1779
1780         if (qlcnic_83xx_check(adapter)) {
1781                 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1782                         tx_ring = &adapter->tx_ring[ring];
1783                         tx_ring->adapter = adapter;
1784                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
1785                                 index = adapter->max_sds_rings + ring;
1786                                 vector = adapter->msix_entries[index].vector;
1787                                 tx_ring->irq = vector;
1788                         }
1789                 }
1790         }
1791         return 0;
1792 }
1793
1794 static int
1795 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1796 {
1797         struct net_device *netdev = NULL;
1798         struct qlcnic_adapter *adapter = NULL;
1799         struct qlcnic_hardware_context *ahw;
1800         int err, pci_using_dac = -1;
1801         u32 capab2;
1802         char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
1803
1804         err = pci_enable_device(pdev);
1805         if (err)
1806                 return err;
1807
1808         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1809                 err = -ENODEV;
1810                 goto err_out_disable_pdev;
1811         }
1812
1813         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
1814         if (err)
1815                 goto err_out_disable_pdev;
1816
1817         err = pci_request_regions(pdev, qlcnic_driver_name);
1818         if (err)
1819                 goto err_out_disable_pdev;
1820
1821         pci_set_master(pdev);
1822         pci_enable_pcie_error_reporting(pdev);
1823
1824         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
1825         if (!ahw)
1826                 goto err_out_free_res;
1827
1828         if (ent->device == PCI_DEVICE_ID_QLOGIC_QLE824X) {
1829                 ahw->hw_ops = &qlcnic_hw_ops;
1830                 ahw->reg_tbl = (u32 *)qlcnic_reg_tbl;
1831         } else if (ent->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1832                 qlcnic_83xx_register_map(ahw);
1833         } else {
1834                 goto err_out_free_hw_res;
1835         }
1836
1837         err = qlcnic_setup_pci_map(pdev, ahw);
1838         if (err)
1839                 goto err_out_free_hw_res;
1840
1841         netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1842         if (!netdev) {
1843                 err = -ENOMEM;
1844                 goto err_out_iounmap;
1845         }
1846
1847         SET_NETDEV_DEV(netdev, &pdev->dev);
1848
1849         adapter = netdev_priv(netdev);
1850         adapter->netdev  = netdev;
1851         adapter->pdev    = pdev;
1852         adapter->ahw = ahw;
1853
1854         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
1855         if (adapter->qlcnic_wq == NULL) {
1856                 dev_err(&pdev->dev, "Failed to create workqueue\n");
1857                 goto err_out_free_netdev;
1858         }
1859
1860         err = qlcnic_alloc_adapter_resources(adapter);
1861         if (err)
1862                 goto err_out_free_netdev;
1863
1864         adapter->dev_rst_time = jiffies;
1865         adapter->ahw->revision_id = pdev->revision;
1866         if (qlcnic_mac_learn == FDB_MAC_LEARN)
1867                 adapter->fdb_mac_learn = true;
1868         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
1869                 adapter->drv_mac_learn = true;
1870         adapter->max_drv_tx_rings = 1;
1871
1872         rwlock_init(&adapter->ahw->crb_lock);
1873         mutex_init(&adapter->ahw->mem_lock);
1874
1875         spin_lock_init(&adapter->tx_clean_lock);
1876         INIT_LIST_HEAD(&adapter->mac_list);
1877
1878         if (qlcnic_82xx_check(adapter)) {
1879                 qlcnic_check_vf(adapter, ent);
1880                 adapter->portnum = adapter->ahw->pci_func;
1881                 err = qlcnic_start_firmware(adapter);
1882                 if (err) {
1883                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
1884                         goto err_out_free_hw;
1885                 }
1886
1887                 err = qlcnic_setup_idc_param(adapter);
1888                 if (err)
1889                         goto err_out_free_hw;
1890
1891                 adapter->flags |= QLCNIC_NEED_FLR;
1892         } else if (qlcnic_83xx_check(adapter)) {
1893                 qlcnic_83xx_check_vf(adapter, ent);
1894                 adapter->portnum = adapter->ahw->pci_func;
1895                 err = qlcnic_83xx_init(adapter);
1896                 if (err) {
1897                         dev_err(&pdev->dev, "%s: failed\n", __func__);
1898                         goto err_out_free_hw;
1899                 }
1900         } else {
1901                 dev_err(&pdev->dev,
1902                         "%s: failed. Please Reboot\n", __func__);
1903                 goto err_out_free_hw;
1904         }
1905
1906         if (qlcnic_read_mac_addr(adapter))
1907                 dev_warn(&pdev->dev, "failed to read mac addr\n");
1908
1909         if (adapter->portnum == 0) {
1910                 qlcnic_get_board_name(adapter, board_name);
1911
1912                 pr_info("%s: %s Board Chip rev 0x%x\n",
1913                         module_name(THIS_MODULE),
1914                         board_name, adapter->ahw->revision_id);
1915         }
1916         err = qlcnic_setup_intr(adapter, 0);
1917         if (err) {
1918                 dev_err(&pdev->dev, "Failed to setup interrupt\n");
1919                 goto err_out_disable_msi;
1920         }
1921
1922         if (qlcnic_83xx_check(adapter)) {
1923                 err = qlcnic_83xx_setup_mbx_intr(adapter);
1924                 if (err)
1925                         goto err_out_disable_msi;
1926         }
1927
1928         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
1929         if (err)
1930                 goto err_out_disable_mbx_intr;
1931
1932         if (qlcnic_82xx_check(adapter)) {
1933                 if (ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1934                         capab2 = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
1935                         if (capab2 & QLCNIC_FW_CAPABILITY_2_OCBB)
1936                                 qlcnic_fw_cmd_set_drv_version(adapter);
1937                 }
1938         }
1939
1940         pci_set_drvdata(pdev, adapter);
1941
1942         if (qlcnic_82xx_check(adapter))
1943                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
1944                                      FW_POLL_DELAY);
1945
1946         switch (adapter->ahw->port_type) {
1947         case QLCNIC_GBE:
1948                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1949                                 adapter->netdev->name);
1950                 break;
1951         case QLCNIC_XGBE:
1952                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1953                                 adapter->netdev->name);
1954                 break;
1955         }
1956
1957         if (qlcnic_get_act_pci_func(adapter))
1958                 goto err_out_disable_mbx_intr;
1959
1960         if (adapter->drv_mac_learn)
1961                 qlcnic_alloc_lb_filters_mem(adapter);
1962
1963         qlcnic_add_sysfs(adapter);
1964
1965         return 0;
1966
1967 err_out_disable_mbx_intr:
1968         if (qlcnic_83xx_check(adapter)) {
1969                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1970                         qlcnic_83xx_config_intrpt(adapter, 0);
1971                 qlcnic_83xx_free_mbx_intr(adapter);
1972         }
1973
1974 err_out_disable_msi:
1975         qlcnic_teardown_intr(adapter);
1976         qlcnic_cancel_idc_work(adapter);
1977         qlcnic_clr_all_drv_state(adapter, 0);
1978
1979 err_out_free_hw:
1980         qlcnic_free_adapter_resources(adapter);
1981
1982 err_out_free_netdev:
1983         free_netdev(netdev);
1984
1985 err_out_iounmap:
1986         qlcnic_cleanup_pci_map(adapter);
1987
1988 err_out_free_hw_res:
1989         kfree(ahw);
1990
1991 err_out_free_res:
1992         pci_release_regions(pdev);
1993
1994 err_out_disable_pdev:
1995         pci_set_drvdata(pdev, NULL);
1996         pci_disable_device(pdev);
1997         return err;
1998 }
1999
2000 static void qlcnic_remove(struct pci_dev *pdev)
2001 {
2002         struct qlcnic_adapter *adapter;
2003         struct net_device *netdev;
2004         struct qlcnic_hardware_context *ahw;
2005
2006         adapter = pci_get_drvdata(pdev);
2007         if (adapter == NULL)
2008                 return;
2009
2010         netdev = adapter->netdev;
2011
2012         qlcnic_cancel_idc_work(adapter);
2013         ahw = adapter->ahw;
2014
2015         unregister_netdev(netdev);
2016
2017         if (qlcnic_83xx_check(adapter)) {
2018                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
2019                         qlcnic_83xx_config_intrpt(adapter, 0);
2020                 qlcnic_83xx_free_mbx_intr(adapter);
2021                 qlcnic_83xx_register_nic_idc_func(adapter, 0);
2022                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2023         }
2024
2025         qlcnic_detach(adapter);
2026
2027         if (adapter->npars != NULL)
2028                 kfree(adapter->npars);
2029         if (adapter->eswitch != NULL)
2030                 kfree(adapter->eswitch);
2031
2032         if (qlcnic_82xx_check(adapter))
2033                 qlcnic_clr_all_drv_state(adapter, 0);
2034
2035         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2036
2037         qlcnic_free_lb_filters_mem(adapter);
2038
2039         qlcnic_teardown_intr(adapter);
2040
2041         qlcnic_remove_sysfs(adapter);
2042
2043         qlcnic_cleanup_pci_map(adapter);
2044
2045         qlcnic_release_firmware(adapter);
2046
2047         pci_disable_pcie_error_reporting(pdev);
2048         pci_release_regions(pdev);
2049         pci_disable_device(pdev);
2050         pci_set_drvdata(pdev, NULL);
2051
2052         if (adapter->qlcnic_wq) {
2053                 destroy_workqueue(adapter->qlcnic_wq);
2054                 adapter->qlcnic_wq = NULL;
2055         }
2056         qlcnic_free_adapter_resources(adapter);
2057         kfree(ahw);
2058         free_netdev(netdev);
2059 }
2060 static int __qlcnic_shutdown(struct pci_dev *pdev)
2061 {
2062         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2063         struct net_device *netdev = adapter->netdev;
2064         int retval;
2065
2066         netif_device_detach(netdev);
2067
2068         qlcnic_cancel_idc_work(adapter);
2069
2070         if (netif_running(netdev))
2071                 qlcnic_down(adapter, netdev);
2072
2073         if (qlcnic_82xx_check(adapter))
2074                 qlcnic_clr_all_drv_state(adapter, 0);
2075
2076         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2077
2078         retval = pci_save_state(pdev);
2079         if (retval)
2080                 return retval;
2081         if (qlcnic_82xx_check(adapter)) {
2082                 if (qlcnic_wol_supported(adapter)) {
2083                         pci_enable_wake(pdev, PCI_D3cold, 1);
2084                         pci_enable_wake(pdev, PCI_D3hot, 1);
2085                 }
2086         }
2087
2088         return 0;
2089 }
2090
2091 static void qlcnic_shutdown(struct pci_dev *pdev)
2092 {
2093         if (__qlcnic_shutdown(pdev))
2094                 return;
2095
2096         pci_disable_device(pdev);
2097 }
2098
2099 #ifdef CONFIG_PM
2100 static int
2101 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2102 {
2103         int retval;
2104
2105         retval = __qlcnic_shutdown(pdev);
2106         if (retval)
2107                 return retval;
2108
2109         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2110         return 0;
2111 }
2112
2113 static int
2114 qlcnic_resume(struct pci_dev *pdev)
2115 {
2116         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2117         struct net_device *netdev = adapter->netdev;
2118         int err;
2119
2120         err = pci_enable_device(pdev);
2121         if (err)
2122                 return err;
2123
2124         pci_set_power_state(pdev, PCI_D0);
2125         pci_set_master(pdev);
2126         pci_restore_state(pdev);
2127
2128         err = qlcnic_start_firmware(adapter);
2129         if (err) {
2130                 dev_err(&pdev->dev, "failed to start firmware\n");
2131                 return err;
2132         }
2133
2134         if (netif_running(netdev)) {
2135                 err = qlcnic_up(adapter, netdev);
2136                 if (err)
2137                         goto done;
2138
2139                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2140         }
2141 done:
2142         netif_device_attach(netdev);
2143         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
2144         return 0;
2145 }
2146 #endif
2147
2148 static int qlcnic_open(struct net_device *netdev)
2149 {
2150         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2151         int err;
2152
2153         netif_carrier_off(netdev);
2154
2155         err = qlcnic_attach(adapter);
2156         if (err)
2157                 return err;
2158
2159         err = __qlcnic_up(adapter, netdev);
2160         if (err)
2161                 goto err_out;
2162
2163         netif_start_queue(netdev);
2164
2165         return 0;
2166
2167 err_out:
2168         qlcnic_detach(adapter);
2169         return err;
2170 }
2171
2172 /*
2173  * qlcnic_close - Disables a network interface entry point
2174  */
2175 static int qlcnic_close(struct net_device *netdev)
2176 {
2177         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2178
2179         __qlcnic_down(adapter, netdev);
2180
2181         return 0;
2182 }
2183
2184 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2185 {
2186         void *head;
2187         int i;
2188         struct net_device *netdev = adapter->netdev;
2189         u32 filter_size = 0;
2190         u16 act_pci_func = 0;
2191
2192         if (adapter->fhash.fmax && adapter->fhash.fhead)
2193                 return;
2194
2195         act_pci_func = adapter->ahw->act_pci_func;
2196         spin_lock_init(&adapter->mac_learn_lock);
2197
2198         if (qlcnic_82xx_check(adapter)) {
2199                 filter_size = QLCNIC_LB_MAX_FILTERS;
2200                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2201         } else {
2202                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2203                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2204         }
2205
2206         head = kcalloc(adapter->fhash.fbucket_size,
2207                        sizeof(struct hlist_head), GFP_ATOMIC);
2208
2209         if (!head)
2210                 return;
2211
2212         adapter->fhash.fmax = (filter_size / act_pci_func);
2213         adapter->fhash.fhead = head;
2214
2215         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2216                     act_pci_func, adapter->fhash.fmax);
2217
2218         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2219                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2220 }
2221
2222 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2223 {
2224         if (adapter->fhash.fmax && adapter->fhash.fhead)
2225                 kfree(adapter->fhash.fhead);
2226
2227         adapter->fhash.fhead = NULL;
2228         adapter->fhash.fmax = 0;
2229 }
2230
2231 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2232 {
2233         struct net_device *netdev = adapter->netdev;
2234         u32 temp_state, temp_val, temp = 0;
2235         int rv = 0;
2236
2237         if (qlcnic_83xx_check(adapter))
2238                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2239
2240         if (qlcnic_82xx_check(adapter))
2241                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2242
2243         temp_state = qlcnic_get_temp_state(temp);
2244         temp_val = qlcnic_get_temp_val(temp);
2245
2246         if (temp_state == QLCNIC_TEMP_PANIC) {
2247                 dev_err(&netdev->dev,
2248                        "Device temperature %d degrees C exceeds"
2249                        " maximum allowed. Hardware has been shut down.\n",
2250                        temp_val);
2251                 rv = 1;
2252         } else if (temp_state == QLCNIC_TEMP_WARN) {
2253                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2254                         dev_err(&netdev->dev,
2255                                "Device temperature %d degrees C "
2256                                "exceeds operating range."
2257                                " Immediate action needed.\n",
2258                                temp_val);
2259                 }
2260         } else {
2261                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2262                         dev_info(&netdev->dev,
2263                                "Device temperature is now %d degrees C"
2264                                " in normal range.\n", temp_val);
2265                 }
2266         }
2267         adapter->ahw->temp = temp_state;
2268         return rv;
2269 }
2270
2271 static void qlcnic_tx_timeout(struct net_device *netdev)
2272 {
2273         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2274
2275         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2276                 return;
2277
2278         dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2279
2280         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
2281                 adapter->need_fw_reset = 1;
2282         else
2283                 adapter->ahw->reset_context = 1;
2284 }
2285
2286 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2287 {
2288         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2289         struct net_device_stats *stats = &netdev->stats;
2290
2291         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2292         stats->tx_packets = adapter->stats.xmitfinished;
2293         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2294         stats->tx_bytes = adapter->stats.txbytes;
2295         stats->rx_dropped = adapter->stats.rxdropped;
2296         stats->tx_dropped = adapter->stats.txdropped;
2297
2298         return stats;
2299 }
2300
2301 irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
2302 {
2303         u32 status;
2304
2305         status = readl(adapter->isr_int_vec);
2306
2307         if (!(status & adapter->ahw->int_vec_bit))
2308                 return IRQ_NONE;
2309
2310         /* check interrupt state machine, to be sure */
2311         status = readl(adapter->crb_int_state_reg);
2312         if (!ISR_LEGACY_INT_TRIGGERED(status))
2313                 return IRQ_NONE;
2314
2315         writel(0xffffffff, adapter->tgt_status_reg);
2316         /* read twice to ensure write is flushed */
2317         readl(adapter->isr_int_vec);
2318         readl(adapter->isr_int_vec);
2319
2320         return IRQ_HANDLED;
2321 }
2322
2323 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2324 {
2325         struct qlcnic_host_sds_ring *sds_ring = data;
2326         struct qlcnic_adapter *adapter = sds_ring->adapter;
2327
2328         if (adapter->flags & QLCNIC_MSIX_ENABLED)
2329                 goto done;
2330         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2331                 writel(0xffffffff, adapter->tgt_status_reg);
2332                 goto done;
2333         }
2334
2335         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2336                 return IRQ_NONE;
2337
2338 done:
2339         adapter->ahw->diag_cnt++;
2340         qlcnic_enable_int(sds_ring);
2341         return IRQ_HANDLED;
2342 }
2343
2344 static irqreturn_t qlcnic_intr(int irq, void *data)
2345 {
2346         struct qlcnic_host_sds_ring *sds_ring = data;
2347         struct qlcnic_adapter *adapter = sds_ring->adapter;
2348
2349         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2350                 return IRQ_NONE;
2351
2352         napi_schedule(&sds_ring->napi);
2353
2354         return IRQ_HANDLED;
2355 }
2356
2357 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2358 {
2359         struct qlcnic_host_sds_ring *sds_ring = data;
2360         struct qlcnic_adapter *adapter = sds_ring->adapter;
2361
2362         /* clear interrupt */
2363         writel(0xffffffff, adapter->tgt_status_reg);
2364
2365         napi_schedule(&sds_ring->napi);
2366         return IRQ_HANDLED;
2367 }
2368
2369 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2370 {
2371         struct qlcnic_host_sds_ring *sds_ring = data;
2372
2373         napi_schedule(&sds_ring->napi);
2374         return IRQ_HANDLED;
2375 }
2376
2377 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
2378 {
2379         struct qlcnic_host_tx_ring *tx_ring = data;
2380
2381         napi_schedule(&tx_ring->napi);
2382         return IRQ_HANDLED;
2383 }
2384
2385 #ifdef CONFIG_NET_POLL_CONTROLLER
2386 static void qlcnic_poll_controller(struct net_device *netdev)
2387 {
2388         int ring;
2389         struct qlcnic_host_sds_ring *sds_ring;
2390         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2391         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2392
2393         disable_irq(adapter->irq);
2394         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2395                 sds_ring = &recv_ctx->sds_rings[ring];
2396                 qlcnic_intr(adapter->irq, sds_ring);
2397         }
2398         enable_irq(adapter->irq);
2399 }
2400 #endif
2401
2402 static void
2403 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2404 {
2405         u32 val;
2406
2407         val = adapter->portnum & 0xf;
2408         val |= encoding << 7;
2409         val |= (jiffies - adapter->dev_rst_time) << 8;
2410
2411         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2412         adapter->dev_rst_time = jiffies;
2413 }
2414
2415 static int
2416 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2417 {
2418         u32  val;
2419
2420         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2421                         state != QLCNIC_DEV_NEED_QUISCENT);
2422
2423         if (qlcnic_api_lock(adapter))
2424                 return -EIO;
2425
2426         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2427
2428         if (state == QLCNIC_DEV_NEED_RESET)
2429                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2430         else if (state == QLCNIC_DEV_NEED_QUISCENT)
2431                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2432
2433         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2434
2435         qlcnic_api_unlock(adapter);
2436
2437         return 0;
2438 }
2439
2440 static int
2441 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2442 {
2443         u32  val;
2444
2445         if (qlcnic_api_lock(adapter))
2446                 return -EBUSY;
2447
2448         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2449         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2450         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2451
2452         qlcnic_api_unlock(adapter);
2453
2454         return 0;
2455 }
2456
2457 static void
2458 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2459 {
2460         u32  val;
2461
2462         if (qlcnic_api_lock(adapter))
2463                 goto err;
2464
2465         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2466         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2467         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2468
2469         if (failed) {
2470                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2471                                     QLCNIC_DEV_FAILED);
2472                 dev_info(&adapter->pdev->dev,
2473                                 "Device state set to Failed. Please Reboot\n");
2474         } else if (!(val & 0x11111111))
2475                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2476                                     QLCNIC_DEV_COLD);
2477
2478         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2479         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2480         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2481
2482         qlcnic_api_unlock(adapter);
2483 err:
2484         adapter->fw_fail_cnt = 0;
2485         adapter->flags &= ~QLCNIC_FW_HANG;
2486         clear_bit(__QLCNIC_START_FW, &adapter->state);
2487         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2488 }
2489
2490 /* Grab api lock, before checking state */
2491 static int
2492 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2493 {
2494         int act, state, active_mask;
2495         struct qlcnic_hardware_context *ahw = adapter->ahw;
2496
2497         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2498         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2499
2500         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
2501                 active_mask = (~(1 << (ahw->pci_func * 4)));
2502                 act = act & active_mask;
2503         }
2504
2505         if (((state & 0x11111111) == (act & 0x11111111)) ||
2506                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2507                 return 0;
2508         else
2509                 return 1;
2510 }
2511
2512 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2513 {
2514         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2515
2516         if (val != QLCNIC_DRV_IDC_VER) {
2517                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2518                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2519         }
2520
2521         return 0;
2522 }
2523
2524 static int
2525 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2526 {
2527         u32 val, prev_state;
2528         u8 dev_init_timeo = adapter->dev_init_timeo;
2529         u8 portnum = adapter->portnum;
2530         u8 ret;
2531
2532         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2533                 return 1;
2534
2535         if (qlcnic_api_lock(adapter))
2536                 return -1;
2537
2538         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2539         if (!(val & (1 << (portnum * 4)))) {
2540                 QLC_DEV_SET_REF_CNT(val, portnum);
2541                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2542         }
2543
2544         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2545         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2546
2547         switch (prev_state) {
2548         case QLCNIC_DEV_COLD:
2549                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2550                                     QLCNIC_DEV_INITIALIZING);
2551                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
2552                                     QLCNIC_DRV_IDC_VER);
2553                 qlcnic_idc_debug_info(adapter, 0);
2554                 qlcnic_api_unlock(adapter);
2555                 return 1;
2556
2557         case QLCNIC_DEV_READY:
2558                 ret = qlcnic_check_idc_ver(adapter);
2559                 qlcnic_api_unlock(adapter);
2560                 return ret;
2561
2562         case QLCNIC_DEV_NEED_RESET:
2563                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2564                 QLC_DEV_SET_RST_RDY(val, portnum);
2565                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2566                 break;
2567
2568         case QLCNIC_DEV_NEED_QUISCENT:
2569                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2570                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
2571                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2572                 break;
2573
2574         case QLCNIC_DEV_FAILED:
2575                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
2576                 qlcnic_api_unlock(adapter);
2577                 return -1;
2578
2579         case QLCNIC_DEV_INITIALIZING:
2580         case QLCNIC_DEV_QUISCENT:
2581                 break;
2582         }
2583
2584         qlcnic_api_unlock(adapter);
2585
2586         do {
2587                 msleep(1000);
2588                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2589
2590                 if (prev_state == QLCNIC_DEV_QUISCENT)
2591                         continue;
2592         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
2593
2594         if (!dev_init_timeo) {
2595                 dev_err(&adapter->pdev->dev,
2596                         "Waiting for device to initialize timeout\n");
2597                 return -1;
2598         }
2599
2600         if (qlcnic_api_lock(adapter))
2601                 return -1;
2602
2603         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2604         QLC_DEV_CLR_RST_QSCNT(val, portnum);
2605         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2606
2607         ret = qlcnic_check_idc_ver(adapter);
2608         qlcnic_api_unlock(adapter);
2609
2610         return ret;
2611 }
2612
2613 static void
2614 qlcnic_fwinit_work(struct work_struct *work)
2615 {
2616         struct qlcnic_adapter *adapter = container_of(work,
2617                         struct qlcnic_adapter, fw_work.work);
2618         u32 dev_state = 0xf;
2619         u32 val;
2620
2621         if (qlcnic_api_lock(adapter))
2622                 goto err_ret;
2623
2624         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2625         if (dev_state == QLCNIC_DEV_QUISCENT ||
2626             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2627                 qlcnic_api_unlock(adapter);
2628                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2629                                                 FW_POLL_DELAY * 2);
2630                 return;
2631         }
2632
2633         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
2634                 qlcnic_api_unlock(adapter);
2635                 goto wait_npar;
2636         }
2637
2638         if (dev_state == QLCNIC_DEV_INITIALIZING ||
2639             dev_state == QLCNIC_DEV_READY) {
2640                 dev_info(&adapter->pdev->dev, "Detected state change from "
2641                                 "DEV_NEED_RESET, skipping ack check\n");
2642                 goto skip_ack_check;
2643         }
2644
2645         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2646                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2647                                         adapter->reset_ack_timeo);
2648                 goto skip_ack_check;
2649         }
2650
2651         if (!qlcnic_check_drv_state(adapter)) {
2652 skip_ack_check:
2653                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2654
2655                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2656                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2657                                             QLCNIC_DEV_INITIALIZING);
2658                         set_bit(__QLCNIC_START_FW, &adapter->state);
2659                         QLCDB(adapter, DRV, "Restarting fw\n");
2660                         qlcnic_idc_debug_info(adapter, 0);
2661                         val = QLC_SHARED_REG_RD32(adapter,
2662                                                   QLCNIC_CRB_DRV_STATE);
2663                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2664                         QLC_SHARED_REG_WR32(adapter,
2665                                             QLCNIC_CRB_DRV_STATE, val);
2666                 }
2667
2668                 qlcnic_api_unlock(adapter);
2669
2670                 rtnl_lock();
2671                 if (adapter->ahw->fw_dump.enable &&
2672                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2673                         QLCDB(adapter, DRV, "Take FW dump\n");
2674                         qlcnic_dump_fw(adapter);
2675                         adapter->flags |= QLCNIC_FW_HANG;
2676                 }
2677                 rtnl_unlock();
2678
2679                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
2680                 if (!adapter->nic_ops->start_firmware(adapter)) {
2681                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2682                         adapter->fw_wait_cnt = 0;
2683                         return;
2684                 }
2685                 goto err_ret;
2686         }
2687
2688         qlcnic_api_unlock(adapter);
2689
2690 wait_npar:
2691         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2692         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
2693
2694         switch (dev_state) {
2695         case QLCNIC_DEV_READY:
2696                 if (!qlcnic_start_firmware(adapter)) {
2697                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2698                         adapter->fw_wait_cnt = 0;
2699                         return;
2700                 }
2701         case QLCNIC_DEV_FAILED:
2702                 break;
2703         default:
2704                 qlcnic_schedule_work(adapter,
2705                         qlcnic_fwinit_work, FW_POLL_DELAY);
2706                 return;
2707         }
2708
2709 err_ret:
2710         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2711                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
2712         netif_device_attach(adapter->netdev);
2713         qlcnic_clr_all_drv_state(adapter, 0);
2714 }
2715
2716 static void
2717 qlcnic_detach_work(struct work_struct *work)
2718 {
2719         struct qlcnic_adapter *adapter = container_of(work,
2720                         struct qlcnic_adapter, fw_work.work);
2721         struct net_device *netdev = adapter->netdev;
2722         u32 status;
2723
2724         netif_device_detach(netdev);
2725
2726         /* Dont grab rtnl lock during Quiscent mode */
2727         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2728                 if (netif_running(netdev))
2729                         __qlcnic_down(adapter, netdev);
2730         } else
2731                 qlcnic_down(adapter, netdev);
2732
2733         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2734
2735         if (status & QLCNIC_RCODE_FATAL_ERROR) {
2736                 dev_err(&adapter->pdev->dev,
2737                         "Detaching the device: peg halt status1=0x%x\n",
2738                                         status);
2739
2740                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
2741                         dev_err(&adapter->pdev->dev,
2742                         "On board active cooling fan failed. "
2743                                 "Device has been halted.\n");
2744                         dev_err(&adapter->pdev->dev,
2745                                 "Replace the adapter.\n");
2746                 }
2747
2748                 goto err_ret;
2749         }
2750
2751         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
2752                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
2753                         adapter->ahw->temp);
2754                 goto err_ret;
2755         }
2756
2757         /* Dont ack if this instance is the reset owner */
2758         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2759                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
2760                         dev_err(&adapter->pdev->dev,
2761                                 "Failed to set driver state,"
2762                                         "detaching the device.\n");
2763                         goto err_ret;
2764                 }
2765         }
2766
2767         adapter->fw_wait_cnt = 0;
2768
2769         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2770
2771         return;
2772
2773 err_ret:
2774         netif_device_attach(netdev);
2775         qlcnic_clr_all_drv_state(adapter, 1);
2776 }
2777
2778 /*Transit NPAR state to NON Operational */
2779 static void
2780 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
2781 {
2782         u32 state;
2783
2784         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2785         if (state == QLCNIC_DEV_NPAR_NON_OPER)
2786                 return;
2787
2788         if (qlcnic_api_lock(adapter))
2789                 return;
2790         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2791                             QLCNIC_DEV_NPAR_NON_OPER);
2792         qlcnic_api_unlock(adapter);
2793 }
2794
2795 void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter, u32 key)
2796 {
2797         u32 state, xg_val = 0, gb_val = 0;
2798
2799         qlcnic_xg_set_xg0_mask(xg_val);
2800         qlcnic_xg_set_xg1_mask(xg_val);
2801         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
2802         qlcnic_gb_set_gb0_mask(gb_val);
2803         qlcnic_gb_set_gb1_mask(gb_val);
2804         qlcnic_gb_set_gb2_mask(gb_val);
2805         qlcnic_gb_set_gb3_mask(gb_val);
2806         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
2807         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
2808                                 " on all ports\n");
2809         adapter->need_fw_reset = 1;
2810
2811         if (qlcnic_api_lock(adapter))
2812                 return;
2813
2814         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2815
2816         if (state == QLCNIC_DEV_READY) {
2817                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2818                                     QLCNIC_DEV_NEED_RESET);
2819                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
2820                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
2821                 qlcnic_idc_debug_info(adapter, 0);
2822         }
2823
2824         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2825                             QLCNIC_DEV_NPAR_NON_OPER);
2826         qlcnic_api_unlock(adapter);
2827 }
2828
2829 /* Transit to NPAR READY state from NPAR NOT READY state */
2830 static void
2831 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
2832 {
2833         if (qlcnic_api_lock(adapter))
2834                 return;
2835
2836         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2837                             QLCNIC_DEV_NPAR_OPER);
2838         QLCDB(adapter, DRV, "NPAR operational state set\n");
2839
2840         qlcnic_api_unlock(adapter);
2841 }
2842
2843 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2844                           work_func_t func, int delay)
2845 {
2846         if (test_bit(__QLCNIC_AER, &adapter->state))
2847                 return;
2848
2849         INIT_DELAYED_WORK(&adapter->fw_work, func);
2850         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
2851                            round_jiffies_relative(delay));
2852 }
2853
2854 static void
2855 qlcnic_attach_work(struct work_struct *work)
2856 {
2857         struct qlcnic_adapter *adapter = container_of(work,
2858                                 struct qlcnic_adapter, fw_work.work);
2859         struct net_device *netdev = adapter->netdev;
2860         u32 npar_state;
2861
2862         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
2863                 npar_state = QLC_SHARED_REG_RD32(adapter,
2864                                                  QLCNIC_CRB_DEV_NPAR_STATE);
2865                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
2866                         qlcnic_clr_all_drv_state(adapter, 0);
2867                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
2868                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
2869                                                         FW_POLL_DELAY);
2870                 else
2871                         goto attach;
2872                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
2873                 return;
2874         }
2875 attach:
2876         if (netif_running(netdev)) {
2877                 if (qlcnic_up(adapter, netdev))
2878                         goto done;
2879
2880                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2881         }
2882
2883 done:
2884         netif_device_attach(netdev);
2885         adapter->fw_fail_cnt = 0;
2886         adapter->flags &= ~QLCNIC_FW_HANG;
2887         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2888
2889         if (!qlcnic_clr_drv_state(adapter))
2890                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2891                                                         FW_POLL_DELAY);
2892 }
2893
2894 static int
2895 qlcnic_check_health(struct qlcnic_adapter *adapter)
2896 {
2897         u32 state = 0, heartbeat;
2898         u32 peg_status;
2899
2900         if (qlcnic_check_temp(adapter))
2901                 goto detach;
2902
2903         if (adapter->need_fw_reset)
2904                 qlcnic_dev_request_reset(adapter, 0);
2905
2906         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2907         if (state == QLCNIC_DEV_NEED_RESET) {
2908                 qlcnic_set_npar_non_operational(adapter);
2909                 adapter->need_fw_reset = 1;
2910         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
2911                 goto detach;
2912
2913         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
2914         if (heartbeat != adapter->heartbeat) {
2915                 adapter->heartbeat = heartbeat;
2916                 adapter->fw_fail_cnt = 0;
2917                 if (adapter->need_fw_reset)
2918                         goto detach;
2919
2920                 if (adapter->ahw->reset_context && qlcnic_auto_fw_reset) {
2921                         qlcnic_reset_hw_context(adapter);
2922                         adapter->netdev->trans_start = jiffies;
2923                 }
2924
2925                 return 0;
2926         }
2927
2928         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2929                 return 0;
2930
2931         adapter->flags |= QLCNIC_FW_HANG;
2932
2933         qlcnic_dev_request_reset(adapter, 0);
2934
2935         if (qlcnic_auto_fw_reset)
2936                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
2937
2938         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
2939         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2940         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
2941                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
2942                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
2943                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
2944                         "PEG_NET_4_PC: 0x%x\n",
2945                         peg_status,
2946                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
2947                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c),
2948                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c),
2949                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c),
2950                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c),
2951                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c));
2952         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
2953                 dev_err(&adapter->pdev->dev,
2954                         "Firmware aborted with error code 0x00006700. "
2955                                 "Device is being reset.\n");
2956 detach:
2957         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
2958                 QLCNIC_DEV_NEED_RESET;
2959
2960         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
2961                                                       &adapter->state)) {
2962
2963                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
2964                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
2965         }
2966
2967         return 1;
2968 }
2969
2970 static void
2971 qlcnic_fw_poll_work(struct work_struct *work)
2972 {
2973         struct qlcnic_adapter *adapter = container_of(work,
2974                                 struct qlcnic_adapter, fw_work.work);
2975
2976         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2977                 goto reschedule;
2978
2979
2980         if (qlcnic_check_health(adapter))
2981                 return;
2982
2983         if (adapter->fhash.fnum)
2984                 qlcnic_prune_lb_filters(adapter);
2985
2986 reschedule:
2987         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
2988 }
2989
2990 static int qlcnic_is_first_func(struct pci_dev *pdev)
2991 {
2992         struct pci_dev *oth_pdev;
2993         int val = pdev->devfn;
2994
2995         while (val-- > 0) {
2996                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
2997                         (pdev->bus), pdev->bus->number,
2998                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
2999                 if (!oth_pdev)
3000                         continue;
3001
3002                 if (oth_pdev->current_state != PCI_D3cold) {
3003                         pci_dev_put(oth_pdev);
3004                         return 0;
3005                 }
3006                 pci_dev_put(oth_pdev);
3007         }
3008         return 1;
3009 }
3010
3011 static int qlcnic_attach_func(struct pci_dev *pdev)
3012 {
3013         int err, first_func;
3014         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3015         struct net_device *netdev = adapter->netdev;
3016
3017         pdev->error_state = pci_channel_io_normal;
3018
3019         err = pci_enable_device(pdev);
3020         if (err)
3021                 return err;
3022
3023         pci_set_power_state(pdev, PCI_D0);
3024         pci_set_master(pdev);
3025         pci_restore_state(pdev);
3026
3027         first_func = qlcnic_is_first_func(pdev);
3028
3029         if (qlcnic_api_lock(adapter))
3030                 return -EINVAL;
3031
3032         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3033                 adapter->need_fw_reset = 1;
3034                 set_bit(__QLCNIC_START_FW, &adapter->state);
3035                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3036                                     QLCNIC_DEV_INITIALIZING);
3037                 QLCDB(adapter, DRV, "Restarting fw\n");
3038         }
3039         qlcnic_api_unlock(adapter);
3040
3041         err = qlcnic_start_firmware(adapter);
3042         if (err)
3043                 return err;
3044
3045         qlcnic_clr_drv_state(adapter);
3046         kfree(adapter->msix_entries);
3047         adapter->msix_entries = NULL;
3048         err = qlcnic_setup_intr(adapter, 0);
3049
3050         if (err) {
3051                 kfree(adapter->msix_entries);
3052                 netdev_err(netdev, "failed to setup interrupt\n");
3053                 return err;
3054         }
3055
3056         if (qlcnic_83xx_check(adapter)) {
3057                 /* register for NIC IDC AEN Events */
3058                 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3059                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3060                 if (err) {
3061                         dev_err(&adapter->pdev->dev,
3062                                 "failed to setup mbx interrupt\n");
3063                         qlcnic_clr_all_drv_state(adapter, 1);
3064                         clear_bit(__QLCNIC_AER, &adapter->state);
3065                         goto done;
3066                 }
3067         }
3068
3069         if (netif_running(netdev)) {
3070                 err = qlcnic_attach(adapter);
3071                 if (err) {
3072                         qlcnic_clr_all_drv_state(adapter, 1);
3073                         clear_bit(__QLCNIC_AER, &adapter->state);
3074                         netif_device_attach(netdev);
3075                         return err;
3076                 }
3077
3078                 err = qlcnic_up(adapter, netdev);
3079                 if (err)
3080                         goto done;
3081
3082                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3083         }
3084  done:
3085         netif_device_attach(netdev);
3086         return err;
3087 }
3088
3089 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3090                                                 pci_channel_state_t state)
3091 {
3092         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3093         struct net_device *netdev = adapter->netdev;
3094
3095         if (state == pci_channel_io_perm_failure)
3096                 return PCI_ERS_RESULT_DISCONNECT;
3097
3098         if (state == pci_channel_io_normal)
3099                 return PCI_ERS_RESULT_RECOVERED;
3100
3101         set_bit(__QLCNIC_AER, &adapter->state);
3102         netif_device_detach(netdev);
3103
3104         cancel_delayed_work_sync(&adapter->fw_work);
3105
3106         if (netif_running(netdev))
3107                 qlcnic_down(adapter, netdev);
3108
3109         if (qlcnic_83xx_check(adapter)) {
3110                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
3111                         qlcnic_83xx_config_intrpt(adapter, 0);
3112                 qlcnic_83xx_free_mbx_intr(adapter);
3113                 qlcnic_83xx_register_nic_idc_func(adapter, 0);
3114                 cancel_delayed_work_sync(&adapter->idc_aen_work);
3115         }
3116
3117         qlcnic_detach(adapter);
3118         qlcnic_teardown_intr(adapter);
3119
3120         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3121
3122         pci_save_state(pdev);
3123         pci_disable_device(pdev);
3124
3125         return PCI_ERS_RESULT_NEED_RESET;
3126 }
3127
3128 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3129 {
3130         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3131                                 PCI_ERS_RESULT_RECOVERED;
3132 }
3133
3134 static void qlcnic_io_resume(struct pci_dev *pdev)
3135 {
3136         u32 state;
3137         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3138
3139         pci_cleanup_aer_uncorrect_error_status(pdev);
3140         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3141         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3142                                                             &adapter->state))
3143                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3144                                                 FW_POLL_DELAY);
3145 }
3146
3147 static int
3148 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3149 {
3150         int err;
3151
3152         err = qlcnic_can_start_firmware(adapter);
3153         if (err)
3154                 return err;
3155
3156         err = qlcnic_check_npar_opertional(adapter);
3157         if (err)
3158                 return err;
3159
3160         err = qlcnic_initialize_nic(adapter);
3161         if (err)
3162                 return err;
3163
3164         qlcnic_check_options(adapter);
3165
3166         err = qlcnic_set_eswitch_port_config(adapter);
3167         if (err)
3168                 return err;
3169
3170         adapter->need_fw_reset = 0;
3171
3172         return err;
3173 }
3174
3175 int qlcnic_validate_max_rss(u8 max_hw, u8 val)
3176 {
3177         u32 max_allowed;
3178
3179         if (max_hw > QLC_MAX_SDS_RINGS) {
3180                 max_hw = QLC_MAX_SDS_RINGS;
3181                 pr_info("max rss reset to %d\n", QLC_MAX_SDS_RINGS);
3182         }
3183
3184         max_allowed = rounddown_pow_of_two(min_t(int, max_hw,
3185                                                  num_online_cpus()));
3186         if ((val > max_allowed) || (val < 2) || !is_power_of_2(val)) {
3187                 pr_info("rss_ring valid range [2 - %x] in powers of 2\n",
3188                         max_allowed);
3189                 return -EINVAL;
3190         }
3191         return 0;
3192 }
3193
3194 int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data, size_t len)
3195 {
3196         int err;
3197         struct net_device *netdev = adapter->netdev;
3198
3199         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3200                 return -EBUSY;
3201
3202         netif_device_detach(netdev);
3203         if (netif_running(netdev))
3204                 __qlcnic_down(adapter, netdev);
3205
3206         if (qlcnic_83xx_check(adapter)) {
3207                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
3208                         qlcnic_83xx_config_intrpt(adapter, 0);
3209                 qlcnic_83xx_free_mbx_intr(adapter);
3210         }
3211
3212         qlcnic_detach(adapter);
3213         qlcnic_teardown_intr(adapter);
3214         err = qlcnic_setup_intr(adapter, data);
3215         if (err) {
3216                 kfree(adapter->msix_entries);
3217                 netdev_err(netdev, "failed to setup interrupt\n");
3218                 return err;
3219         }
3220
3221         if (qlcnic_83xx_check(adapter)) {
3222                 /* register for NIC IDC AEN Events */
3223                 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3224                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3225                 if (err) {
3226                         dev_err(&adapter->pdev->dev,
3227                                 "failed to setup mbx interrupt\n");
3228                         goto done;
3229                 }
3230         }
3231
3232         if (netif_running(netdev)) {
3233                 err = qlcnic_attach(adapter);
3234                 if (err)
3235                         goto done;
3236                 err = __qlcnic_up(adapter, netdev);
3237                 if (err)
3238                         goto done;
3239                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3240         }
3241         err = len;
3242  done:
3243         netif_device_attach(netdev);
3244         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3245         return err;
3246 }
3247
3248 #ifdef CONFIG_INET
3249
3250 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
3251
3252 static void
3253 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
3254                         struct net_device *dev, unsigned long event)
3255 {
3256         struct in_device *indev;
3257
3258         indev = in_dev_get(dev);
3259         if (!indev)
3260                 return;
3261
3262         for_ifa(indev) {
3263                 switch (event) {
3264                 case NETDEV_UP:
3265                         qlcnic_config_ipaddr(adapter,
3266                                         ifa->ifa_address, QLCNIC_IP_UP);
3267                         break;
3268                 case NETDEV_DOWN:
3269                         qlcnic_config_ipaddr(adapter,
3270                                         ifa->ifa_address, QLCNIC_IP_DOWN);
3271                         break;
3272                 default:
3273                         break;
3274                 }
3275         } endfor_ifa(indev);
3276
3277         in_dev_put(indev);
3278 }
3279
3280 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
3281 {
3282         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3283         struct net_device *dev;
3284         u16 vid;
3285
3286         qlcnic_config_indev_addr(adapter, netdev, event);
3287
3288         rcu_read_lock();
3289         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
3290                 dev = __vlan_find_dev_deep(netdev, vid);
3291                 if (!dev)
3292                         continue;
3293                 qlcnic_config_indev_addr(adapter, dev, event);
3294         }
3295         rcu_read_unlock();
3296 }
3297
3298 static int qlcnic_netdev_event(struct notifier_block *this,
3299                                  unsigned long event, void *ptr)
3300 {
3301         struct qlcnic_adapter *adapter;
3302         struct net_device *dev = (struct net_device *)ptr;
3303
3304 recheck:
3305         if (dev == NULL)
3306                 goto done;
3307
3308         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3309                 dev = vlan_dev_real_dev(dev);
3310                 goto recheck;
3311         }
3312
3313         if (!is_qlcnic_netdev(dev))
3314                 goto done;
3315
3316         adapter = netdev_priv(dev);
3317
3318         if (!adapter)
3319                 goto done;
3320
3321         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3322                 goto done;
3323
3324         qlcnic_config_indev_addr(adapter, dev, event);
3325 done:
3326         return NOTIFY_DONE;
3327 }
3328
3329 static int
3330 qlcnic_inetaddr_event(struct notifier_block *this,
3331                 unsigned long event, void *ptr)
3332 {
3333         struct qlcnic_adapter *adapter;
3334         struct net_device *dev;
3335
3336         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3337
3338         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3339
3340 recheck:
3341         if (dev == NULL)
3342                 goto done;
3343
3344         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3345                 dev = vlan_dev_real_dev(dev);
3346                 goto recheck;
3347         }
3348
3349         if (!is_qlcnic_netdev(dev))
3350                 goto done;
3351
3352         adapter = netdev_priv(dev);
3353
3354         if (!adapter)
3355                 goto done;
3356
3357         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3358                 goto done;
3359
3360         switch (event) {
3361         case NETDEV_UP:
3362                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
3363
3364                 break;
3365         case NETDEV_DOWN:
3366                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
3367
3368                 break;
3369         default:
3370                 break;
3371         }
3372
3373 done:
3374         return NOTIFY_DONE;
3375 }
3376
3377 static struct notifier_block    qlcnic_netdev_cb = {
3378         .notifier_call = qlcnic_netdev_event,
3379 };
3380
3381 static struct notifier_block qlcnic_inetaddr_cb = {
3382         .notifier_call = qlcnic_inetaddr_event,
3383 };
3384 #else
3385 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
3386 { }
3387 #endif
3388 static const struct pci_error_handlers qlcnic_err_handler = {
3389         .error_detected = qlcnic_io_error_detected,
3390         .slot_reset = qlcnic_io_slot_reset,
3391         .resume = qlcnic_io_resume,
3392 };
3393
3394 static struct pci_driver qlcnic_driver = {
3395         .name = qlcnic_driver_name,
3396         .id_table = qlcnic_pci_tbl,
3397         .probe = qlcnic_probe,
3398         .remove = qlcnic_remove,
3399 #ifdef CONFIG_PM
3400         .suspend = qlcnic_suspend,
3401         .resume = qlcnic_resume,
3402 #endif
3403         .shutdown = qlcnic_shutdown,
3404         .err_handler = &qlcnic_err_handler
3405
3406 };
3407
3408 static int __init qlcnic_init_module(void)
3409 {
3410         int ret;
3411
3412         printk(KERN_INFO "%s\n", qlcnic_driver_string);
3413
3414 #ifdef CONFIG_INET
3415         register_netdevice_notifier(&qlcnic_netdev_cb);
3416         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
3417 #endif
3418
3419         ret = pci_register_driver(&qlcnic_driver);
3420         if (ret) {
3421 #ifdef CONFIG_INET
3422                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3423                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3424 #endif
3425         }
3426
3427         return ret;
3428 }
3429
3430 module_init(qlcnic_init_module);
3431
3432 static void __exit qlcnic_exit_module(void)
3433 {
3434         pci_unregister_driver(&qlcnic_driver);
3435
3436 #ifdef CONFIG_INET
3437         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3438         unregister_netdevice_notifier(&qlcnic_netdev_cb);
3439 #endif
3440 }
3441
3442 module_exit(qlcnic_exit_module);