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                         if (qlcnic_82xx_check(adapter))
1273                                 handler = qlcnic_intr;
1274                         else
1275                                 handler = qlcnic_83xx_intr;
1276                 }
1277         }
1278         adapter->irq = netdev->irq;
1279
1280         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1281                 if (qlcnic_82xx_check(adapter) ||
1282                     (qlcnic_83xx_check(adapter) &&
1283                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1284                         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1285                                 sds_ring = &recv_ctx->sds_rings[ring];
1286                                 snprintf(sds_ring->name, sizeof(int) + IFNAMSIZ,
1287                                          "%s[%d]", netdev->name, ring);
1288                                 err = request_irq(sds_ring->irq, handler, flags,
1289                                                   sds_ring->name, sds_ring);
1290                                 if (err)
1291                                         return err;
1292                         }
1293                 }
1294                 if (qlcnic_83xx_check(adapter) &&
1295                     (adapter->flags & QLCNIC_MSIX_ENABLED)) {
1296                         handler = qlcnic_msix_tx_intr;
1297                         for (ring = 0; ring < adapter->max_drv_tx_rings;
1298                              ring++) {
1299                                 tx_ring = &adapter->tx_ring[ring];
1300                                 snprintf(tx_ring->name, sizeof(int) + IFNAMSIZ,
1301                                          "%s[%d]", netdev->name,
1302                                          adapter->max_sds_rings + ring);
1303                                 err = request_irq(tx_ring->irq, handler, flags,
1304                                                   tx_ring->name, tx_ring);
1305                                 if (err)
1306                                         return err;
1307                         }
1308                 }
1309         }
1310         return 0;
1311 }
1312
1313 static void
1314 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1315 {
1316         int ring;
1317         struct qlcnic_host_sds_ring *sds_ring;
1318         struct qlcnic_host_tx_ring *tx_ring;
1319
1320         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1321
1322         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1323                 if (qlcnic_82xx_check(adapter) ||
1324                     (qlcnic_83xx_check(adapter) &&
1325                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1326                         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1327                                 sds_ring = &recv_ctx->sds_rings[ring];
1328                                 free_irq(sds_ring->irq, sds_ring);
1329                         }
1330                 }
1331                 if (qlcnic_83xx_check(adapter)) {
1332                         for (ring = 0; ring < adapter->max_drv_tx_rings;
1333                              ring++) {
1334                                 tx_ring = &adapter->tx_ring[ring];
1335                                 if (tx_ring->irq)
1336                                         free_irq(tx_ring->irq, tx_ring);
1337                         }
1338                 }
1339         }
1340 }
1341
1342 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1343 {
1344         int ring;
1345         u32 capab2;
1346
1347         struct qlcnic_host_rds_ring *rds_ring;
1348
1349         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1350                 return -EIO;
1351
1352         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1353                 return 0;
1354         if (qlcnic_set_eswitch_port_config(adapter))
1355                 return -EIO;
1356
1357         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1358                 capab2 = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
1359                 if (capab2 & QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1360                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1361         }
1362
1363         if (qlcnic_fw_create_ctx(adapter))
1364                 return -EIO;
1365
1366         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1367                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1368                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1369         }
1370
1371         qlcnic_set_multi(netdev);
1372         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1373
1374         adapter->ahw->linkup = 0;
1375
1376         if (adapter->max_sds_rings > 1)
1377                 qlcnic_config_rss(adapter, 1);
1378
1379         qlcnic_config_intr_coalesce(adapter);
1380
1381         if (netdev->features & NETIF_F_LRO)
1382                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1383
1384         qlcnic_napi_enable(adapter);
1385
1386         qlcnic_linkevent_request(adapter, 1);
1387
1388         adapter->ahw->reset_context = 0;
1389         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1390         return 0;
1391 }
1392
1393 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1394 {
1395         int err = 0;
1396
1397         rtnl_lock();
1398         if (netif_running(netdev))
1399                 err = __qlcnic_up(adapter, netdev);
1400         rtnl_unlock();
1401
1402         return err;
1403 }
1404
1405 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1406 {
1407         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1408                 return;
1409
1410         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1411                 return;
1412
1413         smp_mb();
1414         spin_lock(&adapter->tx_clean_lock);
1415         netif_carrier_off(netdev);
1416         netif_tx_disable(netdev);
1417
1418         qlcnic_free_mac_list(adapter);
1419
1420         if (adapter->fhash.fnum)
1421                 qlcnic_delete_lb_filters(adapter);
1422
1423         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1424
1425         qlcnic_napi_disable(adapter);
1426
1427         qlcnic_fw_destroy_ctx(adapter);
1428         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1429
1430         qlcnic_reset_rx_buffers_list(adapter);
1431         qlcnic_release_tx_buffers(adapter);
1432         spin_unlock(&adapter->tx_clean_lock);
1433 }
1434
1435 /* Usage: During suspend and firmware recovery module */
1436
1437 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1438 {
1439         rtnl_lock();
1440         if (netif_running(netdev))
1441                 __qlcnic_down(adapter, netdev);
1442         rtnl_unlock();
1443
1444 }
1445
1446 int
1447 qlcnic_attach(struct qlcnic_adapter *adapter)
1448 {
1449         struct net_device *netdev = adapter->netdev;
1450         struct pci_dev *pdev = adapter->pdev;
1451         int err;
1452
1453         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1454                 return 0;
1455
1456         err = qlcnic_napi_add(adapter, netdev);
1457         if (err)
1458                 return err;
1459
1460         err = qlcnic_alloc_sw_resources(adapter);
1461         if (err) {
1462                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1463                 goto err_out_napi_del;
1464         }
1465
1466         err = qlcnic_alloc_hw_resources(adapter);
1467         if (err) {
1468                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1469                 goto err_out_free_sw;
1470         }
1471
1472         err = qlcnic_request_irq(adapter);
1473         if (err) {
1474                 dev_err(&pdev->dev, "failed to setup interrupt\n");
1475                 goto err_out_free_hw;
1476         }
1477
1478         qlcnic_create_sysfs_entries(adapter);
1479
1480         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1481         return 0;
1482
1483 err_out_free_hw:
1484         qlcnic_free_hw_resources(adapter);
1485 err_out_free_sw:
1486         qlcnic_free_sw_resources(adapter);
1487 err_out_napi_del:
1488         qlcnic_napi_del(adapter);
1489         return err;
1490 }
1491
1492 void qlcnic_detach(struct qlcnic_adapter *adapter)
1493 {
1494         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1495                 return;
1496
1497         qlcnic_remove_sysfs_entries(adapter);
1498
1499         qlcnic_free_hw_resources(adapter);
1500         qlcnic_release_rx_buffers(adapter);
1501         qlcnic_free_irq(adapter);
1502         qlcnic_napi_del(adapter);
1503         qlcnic_free_sw_resources(adapter);
1504
1505         adapter->is_up = 0;
1506 }
1507
1508 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1509 {
1510         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1511         struct qlcnic_host_sds_ring *sds_ring;
1512         int ring;
1513
1514         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1515         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1516                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1517                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1518                         qlcnic_disable_int(sds_ring);
1519                 }
1520         }
1521
1522         qlcnic_fw_destroy_ctx(adapter);
1523
1524         qlcnic_detach(adapter);
1525
1526         adapter->ahw->diag_test = 0;
1527         adapter->max_sds_rings = max_sds_rings;
1528
1529         if (qlcnic_attach(adapter))
1530                 goto out;
1531
1532         if (netif_running(netdev))
1533                 __qlcnic_up(adapter, netdev);
1534 out:
1535         netif_device_attach(netdev);
1536 }
1537
1538 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
1539 {
1540         int err = 0;
1541         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
1542                                 GFP_KERNEL);
1543         if (!adapter->recv_ctx) {
1544                 err = -ENOMEM;
1545                 goto err_out;
1546         }
1547         /* Initialize interrupt coalesce parameters */
1548         adapter->ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1549         adapter->ahw->coal.rx_time_us = QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
1550         adapter->ahw->coal.rx_packets = QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
1551         /* clear stats */
1552         memset(&adapter->stats, 0, sizeof(adapter->stats));
1553 err_out:
1554         return err;
1555 }
1556
1557 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
1558 {
1559         kfree(adapter->recv_ctx);
1560         adapter->recv_ctx = NULL;
1561
1562         if (adapter->ahw->fw_dump.tmpl_hdr) {
1563                 vfree(adapter->ahw->fw_dump.tmpl_hdr);
1564                 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1565         }
1566
1567         kfree(adapter->ahw->reset.buff);
1568         adapter->ahw->fw_dump.tmpl_hdr = NULL;
1569 }
1570
1571 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1572 {
1573         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1574         struct qlcnic_host_sds_ring *sds_ring;
1575         struct qlcnic_host_rds_ring *rds_ring;
1576         int ring;
1577         int ret;
1578
1579         netif_device_detach(netdev);
1580
1581         if (netif_running(netdev))
1582                 __qlcnic_down(adapter, netdev);
1583
1584         qlcnic_detach(adapter);
1585
1586         adapter->max_sds_rings = 1;
1587         adapter->ahw->diag_test = test;
1588         adapter->ahw->linkup = 0;
1589
1590         ret = qlcnic_attach(adapter);
1591         if (ret) {
1592                 netif_device_attach(netdev);
1593                 return ret;
1594         }
1595
1596         ret = qlcnic_fw_create_ctx(adapter);
1597         if (ret) {
1598                 qlcnic_detach(adapter);
1599                 netif_device_attach(netdev);
1600                 return ret;
1601         }
1602
1603         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1604                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1605                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1606         }
1607
1608         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1609                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1610                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1611                         qlcnic_enable_int(sds_ring);
1612                 }
1613         }
1614
1615         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
1616                 adapter->ahw->loopback_state = 0;
1617                 qlcnic_linkevent_request(adapter, 1);
1618         }
1619
1620         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1621
1622         return 0;
1623 }
1624
1625 /* Reset context in hardware only */
1626 static int
1627 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1628 {
1629         struct net_device *netdev = adapter->netdev;
1630
1631         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1632                 return -EBUSY;
1633
1634         netif_device_detach(netdev);
1635
1636         qlcnic_down(adapter, netdev);
1637
1638         qlcnic_up(adapter, netdev);
1639
1640         netif_device_attach(netdev);
1641
1642         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1643         dev_err(&adapter->pdev->dev, "%s:\n", __func__);
1644         return 0;
1645 }
1646
1647 int
1648 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1649 {
1650         int err = 0;
1651         struct net_device *netdev = adapter->netdev;
1652
1653         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1654                 return -EBUSY;
1655
1656         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1657
1658                 netif_device_detach(netdev);
1659
1660                 if (netif_running(netdev))
1661                         __qlcnic_down(adapter, netdev);
1662
1663                 qlcnic_detach(adapter);
1664
1665                 if (netif_running(netdev)) {
1666                         err = qlcnic_attach(adapter);
1667                         if (!err) {
1668                                 __qlcnic_up(adapter, netdev);
1669                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1670                         }
1671                 }
1672
1673                 netif_device_attach(netdev);
1674         }
1675
1676         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1677         return err;
1678 }
1679
1680 static int
1681 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
1682                     int pci_using_dac)
1683 {
1684         int err;
1685         struct pci_dev *pdev = adapter->pdev;
1686
1687         adapter->rx_csum = 1;
1688         adapter->ahw->mc_enabled = 0;
1689         adapter->ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
1690
1691         netdev->netdev_ops         = &qlcnic_netdev_ops;
1692         netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
1693
1694         qlcnic_change_mtu(netdev, netdev->mtu);
1695
1696         SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1697
1698         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
1699                              NETIF_F_IPV6_CSUM | NETIF_F_GRO |
1700                              NETIF_F_HW_VLAN_RX);
1701         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1702                                   NETIF_F_IPV6_CSUM);
1703
1704         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
1705                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
1706                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
1707         }
1708
1709         if (pci_using_dac) {
1710                 netdev->features |= NETIF_F_HIGHDMA;
1711                 netdev->vlan_features |= NETIF_F_HIGHDMA;
1712         }
1713
1714         if (qlcnic_vlan_tx_check(adapter))
1715                 netdev->features |= (NETIF_F_HW_VLAN_TX);
1716
1717         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1718                 netdev->features |= NETIF_F_LRO;
1719
1720         netdev->hw_features = netdev->features;
1721         netdev->irq = adapter->msix_entries[0].vector;
1722
1723         err = register_netdev(netdev);
1724         if (err) {
1725                 dev_err(&pdev->dev, "failed to register net device\n");
1726                 return err;
1727         }
1728
1729         return 0;
1730 }
1731
1732 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
1733 {
1734         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1735                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1736                 *pci_using_dac = 1;
1737         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1738                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1739                 *pci_using_dac = 0;
1740         else {
1741                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1742                 return -EIO;
1743         }
1744
1745         return 0;
1746 }
1747
1748 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
1749 {
1750         int ring;
1751         struct qlcnic_host_tx_ring *tx_ring;
1752
1753         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1754                 tx_ring = &adapter->tx_ring[ring];
1755                 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
1756                         vfree(tx_ring->cmd_buf_arr);
1757                         tx_ring->cmd_buf_arr = NULL;
1758                 }
1759         }
1760         if (adapter->tx_ring != NULL)
1761                 kfree(adapter->tx_ring);
1762 }
1763
1764 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
1765                           struct net_device *netdev)
1766 {
1767         int ring, vector, index;
1768         struct qlcnic_host_tx_ring *tx_ring;
1769         struct qlcnic_cmd_buffer *cmd_buf_arr;
1770
1771         tx_ring = kcalloc(adapter->max_drv_tx_rings,
1772                           sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
1773         if (tx_ring == NULL)
1774                 return -ENOMEM;
1775
1776         adapter->tx_ring = tx_ring;
1777
1778         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1779                 tx_ring = &adapter->tx_ring[ring];
1780                 tx_ring->num_desc = adapter->num_txd;
1781                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
1782                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
1783                 if (cmd_buf_arr == NULL) {
1784                         qlcnic_free_tx_rings(adapter);
1785                         return -ENOMEM;
1786                 }
1787                 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
1788                 tx_ring->cmd_buf_arr = cmd_buf_arr;
1789         }
1790
1791         if (qlcnic_83xx_check(adapter)) {
1792                 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1793                         tx_ring = &adapter->tx_ring[ring];
1794                         tx_ring->adapter = adapter;
1795                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
1796                                 index = adapter->max_sds_rings + ring;
1797                                 vector = adapter->msix_entries[index].vector;
1798                                 tx_ring->irq = vector;
1799                         }
1800                 }
1801         }
1802         return 0;
1803 }
1804
1805 static int
1806 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1807 {
1808         struct net_device *netdev = NULL;
1809         struct qlcnic_adapter *adapter = NULL;
1810         struct qlcnic_hardware_context *ahw;
1811         int err, pci_using_dac = -1;
1812         u32 capab2;
1813         char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
1814
1815         err = pci_enable_device(pdev);
1816         if (err)
1817                 return err;
1818
1819         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1820                 err = -ENODEV;
1821                 goto err_out_disable_pdev;
1822         }
1823
1824         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
1825         if (err)
1826                 goto err_out_disable_pdev;
1827
1828         err = pci_request_regions(pdev, qlcnic_driver_name);
1829         if (err)
1830                 goto err_out_disable_pdev;
1831
1832         pci_set_master(pdev);
1833         pci_enable_pcie_error_reporting(pdev);
1834
1835         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
1836         if (!ahw)
1837                 goto err_out_free_res;
1838
1839         if (ent->device == PCI_DEVICE_ID_QLOGIC_QLE824X) {
1840                 ahw->hw_ops = &qlcnic_hw_ops;
1841                 ahw->reg_tbl = (u32 *)qlcnic_reg_tbl;
1842         } else if (ent->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1843                 qlcnic_83xx_register_map(ahw);
1844         } else {
1845                 goto err_out_free_hw_res;
1846         }
1847
1848         err = qlcnic_setup_pci_map(pdev, ahw);
1849         if (err)
1850                 goto err_out_free_hw_res;
1851
1852         netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1853         if (!netdev) {
1854                 err = -ENOMEM;
1855                 goto err_out_iounmap;
1856         }
1857
1858         SET_NETDEV_DEV(netdev, &pdev->dev);
1859
1860         adapter = netdev_priv(netdev);
1861         adapter->netdev  = netdev;
1862         adapter->pdev    = pdev;
1863         adapter->ahw = ahw;
1864
1865         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
1866         if (adapter->qlcnic_wq == NULL) {
1867                 dev_err(&pdev->dev, "Failed to create workqueue\n");
1868                 goto err_out_free_netdev;
1869         }
1870
1871         err = qlcnic_alloc_adapter_resources(adapter);
1872         if (err)
1873                 goto err_out_free_netdev;
1874
1875         adapter->dev_rst_time = jiffies;
1876         adapter->ahw->revision_id = pdev->revision;
1877         if (qlcnic_mac_learn == FDB_MAC_LEARN)
1878                 adapter->fdb_mac_learn = true;
1879         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
1880                 adapter->drv_mac_learn = true;
1881         adapter->max_drv_tx_rings = 1;
1882
1883         rwlock_init(&adapter->ahw->crb_lock);
1884         mutex_init(&adapter->ahw->mem_lock);
1885
1886         spin_lock_init(&adapter->tx_clean_lock);
1887         INIT_LIST_HEAD(&adapter->mac_list);
1888
1889         if (qlcnic_82xx_check(adapter)) {
1890                 qlcnic_check_vf(adapter, ent);
1891                 adapter->portnum = adapter->ahw->pci_func;
1892                 err = qlcnic_start_firmware(adapter);
1893                 if (err) {
1894                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
1895                         goto err_out_free_hw;
1896                 }
1897
1898                 err = qlcnic_setup_idc_param(adapter);
1899                 if (err)
1900                         goto err_out_free_hw;
1901
1902                 adapter->flags |= QLCNIC_NEED_FLR;
1903         } else if (qlcnic_83xx_check(adapter)) {
1904                 qlcnic_83xx_check_vf(adapter, ent);
1905                 adapter->portnum = adapter->ahw->pci_func;
1906                 err = qlcnic_83xx_init(adapter);
1907                 if (err) {
1908                         dev_err(&pdev->dev, "%s: failed\n", __func__);
1909                         goto err_out_free_hw;
1910                 }
1911         } else {
1912                 dev_err(&pdev->dev,
1913                         "%s: failed. Please Reboot\n", __func__);
1914                 goto err_out_free_hw;
1915         }
1916
1917         if (qlcnic_read_mac_addr(adapter))
1918                 dev_warn(&pdev->dev, "failed to read mac addr\n");
1919
1920         if (adapter->portnum == 0) {
1921                 qlcnic_get_board_name(adapter, board_name);
1922
1923                 pr_info("%s: %s Board Chip rev 0x%x\n",
1924                         module_name(THIS_MODULE),
1925                         board_name, adapter->ahw->revision_id);
1926         }
1927         err = qlcnic_setup_intr(adapter, 0);
1928         if (err) {
1929                 dev_err(&pdev->dev, "Failed to setup interrupt\n");
1930                 goto err_out_disable_msi;
1931         }
1932
1933         if (qlcnic_83xx_check(adapter)) {
1934                 err = qlcnic_83xx_setup_mbx_intr(adapter);
1935                 if (err)
1936                         goto err_out_disable_msi;
1937         }
1938
1939         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
1940         if (err)
1941                 goto err_out_disable_mbx_intr;
1942
1943         if (qlcnic_82xx_check(adapter)) {
1944                 if (ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1945                         capab2 = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
1946                         if (capab2 & QLCNIC_FW_CAPABILITY_2_OCBB)
1947                                 qlcnic_fw_cmd_set_drv_version(adapter);
1948                 }
1949         }
1950
1951         pci_set_drvdata(pdev, adapter);
1952
1953         if (qlcnic_82xx_check(adapter))
1954                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
1955                                      FW_POLL_DELAY);
1956
1957         switch (adapter->ahw->port_type) {
1958         case QLCNIC_GBE:
1959                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1960                                 adapter->netdev->name);
1961                 break;
1962         case QLCNIC_XGBE:
1963                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1964                                 adapter->netdev->name);
1965                 break;
1966         }
1967
1968         if (qlcnic_get_act_pci_func(adapter))
1969                 goto err_out_disable_mbx_intr;
1970
1971         if (adapter->drv_mac_learn)
1972                 qlcnic_alloc_lb_filters_mem(adapter);
1973
1974         qlcnic_add_sysfs(adapter);
1975
1976         return 0;
1977
1978 err_out_disable_mbx_intr:
1979         if (qlcnic_83xx_check(adapter))
1980                 qlcnic_83xx_free_mbx_intr(adapter);
1981
1982 err_out_disable_msi:
1983         qlcnic_teardown_intr(adapter);
1984         qlcnic_cancel_idc_work(adapter);
1985         qlcnic_clr_all_drv_state(adapter, 0);
1986
1987 err_out_free_hw:
1988         qlcnic_free_adapter_resources(adapter);
1989
1990 err_out_free_netdev:
1991         free_netdev(netdev);
1992
1993 err_out_iounmap:
1994         qlcnic_cleanup_pci_map(adapter);
1995
1996 err_out_free_hw_res:
1997         kfree(ahw);
1998
1999 err_out_free_res:
2000         pci_release_regions(pdev);
2001
2002 err_out_disable_pdev:
2003         pci_set_drvdata(pdev, NULL);
2004         pci_disable_device(pdev);
2005         return err;
2006 }
2007
2008 static void qlcnic_remove(struct pci_dev *pdev)
2009 {
2010         struct qlcnic_adapter *adapter;
2011         struct net_device *netdev;
2012         struct qlcnic_hardware_context *ahw;
2013
2014         adapter = pci_get_drvdata(pdev);
2015         if (adapter == NULL)
2016                 return;
2017
2018         netdev = adapter->netdev;
2019
2020         qlcnic_cancel_idc_work(adapter);
2021         ahw = adapter->ahw;
2022
2023         unregister_netdev(netdev);
2024
2025         if (qlcnic_83xx_check(adapter)) {
2026                 qlcnic_83xx_free_mbx_intr(adapter);
2027                 qlcnic_83xx_register_nic_idc_func(adapter, 0);
2028                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2029         }
2030
2031         qlcnic_detach(adapter);
2032
2033         if (adapter->npars != NULL)
2034                 kfree(adapter->npars);
2035         if (adapter->eswitch != NULL)
2036                 kfree(adapter->eswitch);
2037
2038         if (qlcnic_82xx_check(adapter))
2039                 qlcnic_clr_all_drv_state(adapter, 0);
2040
2041         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2042
2043         qlcnic_free_lb_filters_mem(adapter);
2044
2045         qlcnic_teardown_intr(adapter);
2046
2047         qlcnic_remove_sysfs(adapter);
2048
2049         qlcnic_cleanup_pci_map(adapter);
2050
2051         qlcnic_release_firmware(adapter);
2052
2053         pci_disable_pcie_error_reporting(pdev);
2054         pci_release_regions(pdev);
2055         pci_disable_device(pdev);
2056         pci_set_drvdata(pdev, NULL);
2057
2058         if (adapter->qlcnic_wq) {
2059                 destroy_workqueue(adapter->qlcnic_wq);
2060                 adapter->qlcnic_wq = NULL;
2061         }
2062         qlcnic_free_adapter_resources(adapter);
2063         kfree(ahw);
2064         free_netdev(netdev);
2065 }
2066 static int __qlcnic_shutdown(struct pci_dev *pdev)
2067 {
2068         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2069         struct net_device *netdev = adapter->netdev;
2070         int retval;
2071
2072         netif_device_detach(netdev);
2073
2074         qlcnic_cancel_idc_work(adapter);
2075
2076         if (netif_running(netdev))
2077                 qlcnic_down(adapter, netdev);
2078
2079         if (qlcnic_82xx_check(adapter))
2080                 qlcnic_clr_all_drv_state(adapter, 0);
2081
2082         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2083
2084         retval = pci_save_state(pdev);
2085         if (retval)
2086                 return retval;
2087         if (qlcnic_82xx_check(adapter)) {
2088                 if (qlcnic_wol_supported(adapter)) {
2089                         pci_enable_wake(pdev, PCI_D3cold, 1);
2090                         pci_enable_wake(pdev, PCI_D3hot, 1);
2091                 }
2092         }
2093
2094         return 0;
2095 }
2096
2097 static void qlcnic_shutdown(struct pci_dev *pdev)
2098 {
2099         if (__qlcnic_shutdown(pdev))
2100                 return;
2101
2102         pci_disable_device(pdev);
2103 }
2104
2105 #ifdef CONFIG_PM
2106 static int
2107 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2108 {
2109         int retval;
2110
2111         retval = __qlcnic_shutdown(pdev);
2112         if (retval)
2113                 return retval;
2114
2115         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2116         return 0;
2117 }
2118
2119 static int
2120 qlcnic_resume(struct pci_dev *pdev)
2121 {
2122         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2123         struct net_device *netdev = adapter->netdev;
2124         int err;
2125
2126         err = pci_enable_device(pdev);
2127         if (err)
2128                 return err;
2129
2130         pci_set_power_state(pdev, PCI_D0);
2131         pci_set_master(pdev);
2132         pci_restore_state(pdev);
2133
2134         err = qlcnic_start_firmware(adapter);
2135         if (err) {
2136                 dev_err(&pdev->dev, "failed to start firmware\n");
2137                 return err;
2138         }
2139
2140         if (netif_running(netdev)) {
2141                 err = qlcnic_up(adapter, netdev);
2142                 if (err)
2143                         goto done;
2144
2145                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2146         }
2147 done:
2148         netif_device_attach(netdev);
2149         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
2150         return 0;
2151 }
2152 #endif
2153
2154 static int qlcnic_open(struct net_device *netdev)
2155 {
2156         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2157         int err;
2158
2159         netif_carrier_off(netdev);
2160
2161         err = qlcnic_attach(adapter);
2162         if (err)
2163                 return err;
2164
2165         err = __qlcnic_up(adapter, netdev);
2166         if (err)
2167                 goto err_out;
2168
2169         netif_start_queue(netdev);
2170
2171         return 0;
2172
2173 err_out:
2174         qlcnic_detach(adapter);
2175         return err;
2176 }
2177
2178 /*
2179  * qlcnic_close - Disables a network interface entry point
2180  */
2181 static int qlcnic_close(struct net_device *netdev)
2182 {
2183         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2184
2185         __qlcnic_down(adapter, netdev);
2186
2187         return 0;
2188 }
2189
2190 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2191 {
2192         void *head;
2193         int i;
2194         struct net_device *netdev = adapter->netdev;
2195         u32 filter_size = 0;
2196         u16 act_pci_func = 0;
2197
2198         if (adapter->fhash.fmax && adapter->fhash.fhead)
2199                 return;
2200
2201         act_pci_func = adapter->ahw->act_pci_func;
2202         spin_lock_init(&adapter->mac_learn_lock);
2203
2204         if (qlcnic_82xx_check(adapter)) {
2205                 filter_size = QLCNIC_LB_MAX_FILTERS;
2206                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2207         } else {
2208                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2209                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2210         }
2211
2212         head = kcalloc(adapter->fhash.fbucket_size,
2213                        sizeof(struct hlist_head), GFP_ATOMIC);
2214
2215         if (!head)
2216                 return;
2217
2218         adapter->fhash.fmax = (filter_size / act_pci_func);
2219         adapter->fhash.fhead = head;
2220
2221         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2222                     act_pci_func, adapter->fhash.fmax);
2223
2224         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2225                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2226 }
2227
2228 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2229 {
2230         if (adapter->fhash.fmax && adapter->fhash.fhead)
2231                 kfree(adapter->fhash.fhead);
2232
2233         adapter->fhash.fhead = NULL;
2234         adapter->fhash.fmax = 0;
2235 }
2236
2237 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2238 {
2239         struct net_device *netdev = adapter->netdev;
2240         u32 temp_state, temp_val, temp = 0;
2241         int rv = 0;
2242
2243         if (qlcnic_83xx_check(adapter))
2244                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2245
2246         if (qlcnic_82xx_check(adapter))
2247                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2248
2249         temp_state = qlcnic_get_temp_state(temp);
2250         temp_val = qlcnic_get_temp_val(temp);
2251
2252         if (temp_state == QLCNIC_TEMP_PANIC) {
2253                 dev_err(&netdev->dev,
2254                        "Device temperature %d degrees C exceeds"
2255                        " maximum allowed. Hardware has been shut down.\n",
2256                        temp_val);
2257                 rv = 1;
2258         } else if (temp_state == QLCNIC_TEMP_WARN) {
2259                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2260                         dev_err(&netdev->dev,
2261                                "Device temperature %d degrees C "
2262                                "exceeds operating range."
2263                                " Immediate action needed.\n",
2264                                temp_val);
2265                 }
2266         } else {
2267                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2268                         dev_info(&netdev->dev,
2269                                "Device temperature is now %d degrees C"
2270                                " in normal range.\n", temp_val);
2271                 }
2272         }
2273         adapter->ahw->temp = temp_state;
2274         return rv;
2275 }
2276
2277 static void qlcnic_tx_timeout(struct net_device *netdev)
2278 {
2279         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2280
2281         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2282                 return;
2283
2284         dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2285
2286         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
2287                 adapter->need_fw_reset = 1;
2288         else
2289                 adapter->ahw->reset_context = 1;
2290 }
2291
2292 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2293 {
2294         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2295         struct net_device_stats *stats = &netdev->stats;
2296
2297         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2298         stats->tx_packets = adapter->stats.xmitfinished;
2299         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2300         stats->tx_bytes = adapter->stats.txbytes;
2301         stats->rx_dropped = adapter->stats.rxdropped;
2302         stats->tx_dropped = adapter->stats.txdropped;
2303
2304         return stats;
2305 }
2306
2307 irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
2308 {
2309         u32 status;
2310
2311         status = readl(adapter->isr_int_vec);
2312
2313         if (!(status & adapter->ahw->int_vec_bit))
2314                 return IRQ_NONE;
2315
2316         /* check interrupt state machine, to be sure */
2317         status = readl(adapter->crb_int_state_reg);
2318         if (!ISR_LEGACY_INT_TRIGGERED(status))
2319                 return IRQ_NONE;
2320
2321         writel(0xffffffff, adapter->tgt_status_reg);
2322         /* read twice to ensure write is flushed */
2323         readl(adapter->isr_int_vec);
2324         readl(adapter->isr_int_vec);
2325
2326         return IRQ_HANDLED;
2327 }
2328
2329 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2330 {
2331         struct qlcnic_host_sds_ring *sds_ring = data;
2332         struct qlcnic_adapter *adapter = sds_ring->adapter;
2333
2334         if (adapter->flags & QLCNIC_MSIX_ENABLED)
2335                 goto done;
2336         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2337                 writel(0xffffffff, adapter->tgt_status_reg);
2338                 goto done;
2339         }
2340
2341         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2342                 return IRQ_NONE;
2343
2344 done:
2345         adapter->ahw->diag_cnt++;
2346         qlcnic_enable_int(sds_ring);
2347         return IRQ_HANDLED;
2348 }
2349
2350 static irqreturn_t qlcnic_intr(int irq, void *data)
2351 {
2352         struct qlcnic_host_sds_ring *sds_ring = data;
2353         struct qlcnic_adapter *adapter = sds_ring->adapter;
2354
2355         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2356                 return IRQ_NONE;
2357
2358         napi_schedule(&sds_ring->napi);
2359
2360         return IRQ_HANDLED;
2361 }
2362
2363 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2364 {
2365         struct qlcnic_host_sds_ring *sds_ring = data;
2366         struct qlcnic_adapter *adapter = sds_ring->adapter;
2367
2368         /* clear interrupt */
2369         writel(0xffffffff, adapter->tgt_status_reg);
2370
2371         napi_schedule(&sds_ring->napi);
2372         return IRQ_HANDLED;
2373 }
2374
2375 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2376 {
2377         struct qlcnic_host_sds_ring *sds_ring = data;
2378
2379         napi_schedule(&sds_ring->napi);
2380         return IRQ_HANDLED;
2381 }
2382
2383 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
2384 {
2385         struct qlcnic_host_tx_ring *tx_ring = data;
2386
2387         napi_schedule(&tx_ring->napi);
2388         return IRQ_HANDLED;
2389 }
2390
2391 #ifdef CONFIG_NET_POLL_CONTROLLER
2392 static void qlcnic_poll_controller(struct net_device *netdev)
2393 {
2394         int ring;
2395         struct qlcnic_host_sds_ring *sds_ring;
2396         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2397         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2398
2399         disable_irq(adapter->irq);
2400         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2401                 sds_ring = &recv_ctx->sds_rings[ring];
2402                 qlcnic_intr(adapter->irq, sds_ring);
2403         }
2404         enable_irq(adapter->irq);
2405 }
2406 #endif
2407
2408 static void
2409 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2410 {
2411         u32 val;
2412
2413         val = adapter->portnum & 0xf;
2414         val |= encoding << 7;
2415         val |= (jiffies - adapter->dev_rst_time) << 8;
2416
2417         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2418         adapter->dev_rst_time = jiffies;
2419 }
2420
2421 static int
2422 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2423 {
2424         u32  val;
2425
2426         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2427                         state != QLCNIC_DEV_NEED_QUISCENT);
2428
2429         if (qlcnic_api_lock(adapter))
2430                 return -EIO;
2431
2432         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2433
2434         if (state == QLCNIC_DEV_NEED_RESET)
2435                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2436         else if (state == QLCNIC_DEV_NEED_QUISCENT)
2437                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2438
2439         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2440
2441         qlcnic_api_unlock(adapter);
2442
2443         return 0;
2444 }
2445
2446 static int
2447 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2448 {
2449         u32  val;
2450
2451         if (qlcnic_api_lock(adapter))
2452                 return -EBUSY;
2453
2454         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2455         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2456         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2457
2458         qlcnic_api_unlock(adapter);
2459
2460         return 0;
2461 }
2462
2463 static void
2464 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2465 {
2466         u32  val;
2467
2468         if (qlcnic_api_lock(adapter))
2469                 goto err;
2470
2471         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2472         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2473         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2474
2475         if (failed) {
2476                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2477                                     QLCNIC_DEV_FAILED);
2478                 dev_info(&adapter->pdev->dev,
2479                                 "Device state set to Failed. Please Reboot\n");
2480         } else if (!(val & 0x11111111))
2481                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2482                                     QLCNIC_DEV_COLD);
2483
2484         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2485         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2486         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2487
2488         qlcnic_api_unlock(adapter);
2489 err:
2490         adapter->fw_fail_cnt = 0;
2491         adapter->flags &= ~QLCNIC_FW_HANG;
2492         clear_bit(__QLCNIC_START_FW, &adapter->state);
2493         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2494 }
2495
2496 /* Grab api lock, before checking state */
2497 static int
2498 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2499 {
2500         int act, state, active_mask;
2501         struct qlcnic_hardware_context *ahw = adapter->ahw;
2502
2503         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2504         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2505
2506         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
2507                 active_mask = (~(1 << (ahw->pci_func * 4)));
2508                 act = act & active_mask;
2509         }
2510
2511         if (((state & 0x11111111) == (act & 0x11111111)) ||
2512                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2513                 return 0;
2514         else
2515                 return 1;
2516 }
2517
2518 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2519 {
2520         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2521
2522         if (val != QLCNIC_DRV_IDC_VER) {
2523                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2524                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2525         }
2526
2527         return 0;
2528 }
2529
2530 static int
2531 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2532 {
2533         u32 val, prev_state;
2534         u8 dev_init_timeo = adapter->dev_init_timeo;
2535         u8 portnum = adapter->portnum;
2536         u8 ret;
2537
2538         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2539                 return 1;
2540
2541         if (qlcnic_api_lock(adapter))
2542                 return -1;
2543
2544         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2545         if (!(val & (1 << (portnum * 4)))) {
2546                 QLC_DEV_SET_REF_CNT(val, portnum);
2547                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2548         }
2549
2550         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2551         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2552
2553         switch (prev_state) {
2554         case QLCNIC_DEV_COLD:
2555                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2556                                     QLCNIC_DEV_INITIALIZING);
2557                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
2558                                     QLCNIC_DRV_IDC_VER);
2559                 qlcnic_idc_debug_info(adapter, 0);
2560                 qlcnic_api_unlock(adapter);
2561                 return 1;
2562
2563         case QLCNIC_DEV_READY:
2564                 ret = qlcnic_check_idc_ver(adapter);
2565                 qlcnic_api_unlock(adapter);
2566                 return ret;
2567
2568         case QLCNIC_DEV_NEED_RESET:
2569                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2570                 QLC_DEV_SET_RST_RDY(val, portnum);
2571                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2572                 break;
2573
2574         case QLCNIC_DEV_NEED_QUISCENT:
2575                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2576                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
2577                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2578                 break;
2579
2580         case QLCNIC_DEV_FAILED:
2581                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
2582                 qlcnic_api_unlock(adapter);
2583                 return -1;
2584
2585         case QLCNIC_DEV_INITIALIZING:
2586         case QLCNIC_DEV_QUISCENT:
2587                 break;
2588         }
2589
2590         qlcnic_api_unlock(adapter);
2591
2592         do {
2593                 msleep(1000);
2594                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2595
2596                 if (prev_state == QLCNIC_DEV_QUISCENT)
2597                         continue;
2598         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
2599
2600         if (!dev_init_timeo) {
2601                 dev_err(&adapter->pdev->dev,
2602                         "Waiting for device to initialize timeout\n");
2603                 return -1;
2604         }
2605
2606         if (qlcnic_api_lock(adapter))
2607                 return -1;
2608
2609         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2610         QLC_DEV_CLR_RST_QSCNT(val, portnum);
2611         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2612
2613         ret = qlcnic_check_idc_ver(adapter);
2614         qlcnic_api_unlock(adapter);
2615
2616         return ret;
2617 }
2618
2619 static void
2620 qlcnic_fwinit_work(struct work_struct *work)
2621 {
2622         struct qlcnic_adapter *adapter = container_of(work,
2623                         struct qlcnic_adapter, fw_work.work);
2624         u32 dev_state = 0xf;
2625         u32 val;
2626
2627         if (qlcnic_api_lock(adapter))
2628                 goto err_ret;
2629
2630         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2631         if (dev_state == QLCNIC_DEV_QUISCENT ||
2632             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2633                 qlcnic_api_unlock(adapter);
2634                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2635                                                 FW_POLL_DELAY * 2);
2636                 return;
2637         }
2638
2639         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
2640                 qlcnic_api_unlock(adapter);
2641                 goto wait_npar;
2642         }
2643
2644         if (dev_state == QLCNIC_DEV_INITIALIZING ||
2645             dev_state == QLCNIC_DEV_READY) {
2646                 dev_info(&adapter->pdev->dev, "Detected state change from "
2647                                 "DEV_NEED_RESET, skipping ack check\n");
2648                 goto skip_ack_check;
2649         }
2650
2651         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2652                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2653                                         adapter->reset_ack_timeo);
2654                 goto skip_ack_check;
2655         }
2656
2657         if (!qlcnic_check_drv_state(adapter)) {
2658 skip_ack_check:
2659                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2660
2661                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2662                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2663                                             QLCNIC_DEV_INITIALIZING);
2664                         set_bit(__QLCNIC_START_FW, &adapter->state);
2665                         QLCDB(adapter, DRV, "Restarting fw\n");
2666                         qlcnic_idc_debug_info(adapter, 0);
2667                         val = QLC_SHARED_REG_RD32(adapter,
2668                                                   QLCNIC_CRB_DRV_STATE);
2669                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2670                         QLC_SHARED_REG_WR32(adapter,
2671                                             QLCNIC_CRB_DRV_STATE, val);
2672                 }
2673
2674                 qlcnic_api_unlock(adapter);
2675
2676                 rtnl_lock();
2677                 if (adapter->ahw->fw_dump.enable &&
2678                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2679                         QLCDB(adapter, DRV, "Take FW dump\n");
2680                         qlcnic_dump_fw(adapter);
2681                         adapter->flags |= QLCNIC_FW_HANG;
2682                 }
2683                 rtnl_unlock();
2684
2685                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
2686                 if (!adapter->nic_ops->start_firmware(adapter)) {
2687                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2688                         adapter->fw_wait_cnt = 0;
2689                         return;
2690                 }
2691                 goto err_ret;
2692         }
2693
2694         qlcnic_api_unlock(adapter);
2695
2696 wait_npar:
2697         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2698         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
2699
2700         switch (dev_state) {
2701         case QLCNIC_DEV_READY:
2702                 if (!qlcnic_start_firmware(adapter)) {
2703                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2704                         adapter->fw_wait_cnt = 0;
2705                         return;
2706                 }
2707         case QLCNIC_DEV_FAILED:
2708                 break;
2709         default:
2710                 qlcnic_schedule_work(adapter,
2711                         qlcnic_fwinit_work, FW_POLL_DELAY);
2712                 return;
2713         }
2714
2715 err_ret:
2716         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2717                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
2718         netif_device_attach(adapter->netdev);
2719         qlcnic_clr_all_drv_state(adapter, 0);
2720 }
2721
2722 static void
2723 qlcnic_detach_work(struct work_struct *work)
2724 {
2725         struct qlcnic_adapter *adapter = container_of(work,
2726                         struct qlcnic_adapter, fw_work.work);
2727         struct net_device *netdev = adapter->netdev;
2728         u32 status;
2729
2730         netif_device_detach(netdev);
2731
2732         /* Dont grab rtnl lock during Quiscent mode */
2733         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2734                 if (netif_running(netdev))
2735                         __qlcnic_down(adapter, netdev);
2736         } else
2737                 qlcnic_down(adapter, netdev);
2738
2739         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2740
2741         if (status & QLCNIC_RCODE_FATAL_ERROR) {
2742                 dev_err(&adapter->pdev->dev,
2743                         "Detaching the device: peg halt status1=0x%x\n",
2744                                         status);
2745
2746                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
2747                         dev_err(&adapter->pdev->dev,
2748                         "On board active cooling fan failed. "
2749                                 "Device has been halted.\n");
2750                         dev_err(&adapter->pdev->dev,
2751                                 "Replace the adapter.\n");
2752                 }
2753
2754                 goto err_ret;
2755         }
2756
2757         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
2758                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
2759                         adapter->ahw->temp);
2760                 goto err_ret;
2761         }
2762
2763         /* Dont ack if this instance is the reset owner */
2764         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2765                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
2766                         dev_err(&adapter->pdev->dev,
2767                                 "Failed to set driver state,"
2768                                         "detaching the device.\n");
2769                         goto err_ret;
2770                 }
2771         }
2772
2773         adapter->fw_wait_cnt = 0;
2774
2775         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2776
2777         return;
2778
2779 err_ret:
2780         netif_device_attach(netdev);
2781         qlcnic_clr_all_drv_state(adapter, 1);
2782 }
2783
2784 /*Transit NPAR state to NON Operational */
2785 static void
2786 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
2787 {
2788         u32 state;
2789
2790         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2791         if (state == QLCNIC_DEV_NPAR_NON_OPER)
2792                 return;
2793
2794         if (qlcnic_api_lock(adapter))
2795                 return;
2796         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2797                             QLCNIC_DEV_NPAR_NON_OPER);
2798         qlcnic_api_unlock(adapter);
2799 }
2800
2801 void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter, u32 key)
2802 {
2803         u32 state, xg_val = 0, gb_val = 0;
2804
2805         qlcnic_xg_set_xg0_mask(xg_val);
2806         qlcnic_xg_set_xg1_mask(xg_val);
2807         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
2808         qlcnic_gb_set_gb0_mask(gb_val);
2809         qlcnic_gb_set_gb1_mask(gb_val);
2810         qlcnic_gb_set_gb2_mask(gb_val);
2811         qlcnic_gb_set_gb3_mask(gb_val);
2812         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
2813         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
2814                                 " on all ports\n");
2815         adapter->need_fw_reset = 1;
2816
2817         if (qlcnic_api_lock(adapter))
2818                 return;
2819
2820         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2821
2822         if (state == QLCNIC_DEV_READY) {
2823                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2824                                     QLCNIC_DEV_NEED_RESET);
2825                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
2826                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
2827                 qlcnic_idc_debug_info(adapter, 0);
2828         }
2829
2830         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2831                             QLCNIC_DEV_NPAR_NON_OPER);
2832         qlcnic_api_unlock(adapter);
2833 }
2834
2835 /* Transit to NPAR READY state from NPAR NOT READY state */
2836 static void
2837 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
2838 {
2839         if (qlcnic_api_lock(adapter))
2840                 return;
2841
2842         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2843                             QLCNIC_DEV_NPAR_OPER);
2844         QLCDB(adapter, DRV, "NPAR operational state set\n");
2845
2846         qlcnic_api_unlock(adapter);
2847 }
2848
2849 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2850                           work_func_t func, int delay)
2851 {
2852         if (test_bit(__QLCNIC_AER, &adapter->state))
2853                 return;
2854
2855         INIT_DELAYED_WORK(&adapter->fw_work, func);
2856         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
2857                            round_jiffies_relative(delay));
2858 }
2859
2860 static void
2861 qlcnic_attach_work(struct work_struct *work)
2862 {
2863         struct qlcnic_adapter *adapter = container_of(work,
2864                                 struct qlcnic_adapter, fw_work.work);
2865         struct net_device *netdev = adapter->netdev;
2866         u32 npar_state;
2867
2868         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
2869                 npar_state = QLC_SHARED_REG_RD32(adapter,
2870                                                  QLCNIC_CRB_DEV_NPAR_STATE);
2871                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
2872                         qlcnic_clr_all_drv_state(adapter, 0);
2873                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
2874                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
2875                                                         FW_POLL_DELAY);
2876                 else
2877                         goto attach;
2878                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
2879                 return;
2880         }
2881 attach:
2882         if (netif_running(netdev)) {
2883                 if (qlcnic_up(adapter, netdev))
2884                         goto done;
2885
2886                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2887         }
2888
2889 done:
2890         netif_device_attach(netdev);
2891         adapter->fw_fail_cnt = 0;
2892         adapter->flags &= ~QLCNIC_FW_HANG;
2893         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2894
2895         if (!qlcnic_clr_drv_state(adapter))
2896                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2897                                                         FW_POLL_DELAY);
2898 }
2899
2900 static int
2901 qlcnic_check_health(struct qlcnic_adapter *adapter)
2902 {
2903         u32 state = 0, heartbeat;
2904         u32 peg_status;
2905
2906         if (qlcnic_check_temp(adapter))
2907                 goto detach;
2908
2909         if (adapter->need_fw_reset)
2910                 qlcnic_dev_request_reset(adapter, 0);
2911
2912         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2913         if (state == QLCNIC_DEV_NEED_RESET) {
2914                 qlcnic_set_npar_non_operational(adapter);
2915                 adapter->need_fw_reset = 1;
2916         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
2917                 goto detach;
2918
2919         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
2920         if (heartbeat != adapter->heartbeat) {
2921                 adapter->heartbeat = heartbeat;
2922                 adapter->fw_fail_cnt = 0;
2923                 if (adapter->need_fw_reset)
2924                         goto detach;
2925
2926                 if (adapter->ahw->reset_context && qlcnic_auto_fw_reset) {
2927                         qlcnic_reset_hw_context(adapter);
2928                         adapter->netdev->trans_start = jiffies;
2929                 }
2930
2931                 return 0;
2932         }
2933
2934         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2935                 return 0;
2936
2937         adapter->flags |= QLCNIC_FW_HANG;
2938
2939         qlcnic_dev_request_reset(adapter, 0);
2940
2941         if (qlcnic_auto_fw_reset)
2942                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
2943
2944         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
2945         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2946         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
2947                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
2948                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
2949                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
2950                         "PEG_NET_4_PC: 0x%x\n",
2951                         peg_status,
2952                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
2953                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c),
2954                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c),
2955                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c),
2956                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c),
2957                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c));
2958         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
2959                 dev_err(&adapter->pdev->dev,
2960                         "Firmware aborted with error code 0x00006700. "
2961                                 "Device is being reset.\n");
2962 detach:
2963         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
2964                 QLCNIC_DEV_NEED_RESET;
2965
2966         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
2967                                                       &adapter->state)) {
2968
2969                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
2970                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
2971         }
2972
2973         return 1;
2974 }
2975
2976 static void
2977 qlcnic_fw_poll_work(struct work_struct *work)
2978 {
2979         struct qlcnic_adapter *adapter = container_of(work,
2980                                 struct qlcnic_adapter, fw_work.work);
2981
2982         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2983                 goto reschedule;
2984
2985
2986         if (qlcnic_check_health(adapter))
2987                 return;
2988
2989         if (adapter->fhash.fnum)
2990                 qlcnic_prune_lb_filters(adapter);
2991
2992 reschedule:
2993         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
2994 }
2995
2996 static int qlcnic_is_first_func(struct pci_dev *pdev)
2997 {
2998         struct pci_dev *oth_pdev;
2999         int val = pdev->devfn;
3000
3001         while (val-- > 0) {
3002                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3003                         (pdev->bus), pdev->bus->number,
3004                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3005                 if (!oth_pdev)
3006                         continue;
3007
3008                 if (oth_pdev->current_state != PCI_D3cold) {
3009                         pci_dev_put(oth_pdev);
3010                         return 0;
3011                 }
3012                 pci_dev_put(oth_pdev);
3013         }
3014         return 1;
3015 }
3016
3017 static int qlcnic_attach_func(struct pci_dev *pdev)
3018 {
3019         int err, first_func;
3020         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3021         struct net_device *netdev = adapter->netdev;
3022
3023         pdev->error_state = pci_channel_io_normal;
3024
3025         err = pci_enable_device(pdev);
3026         if (err)
3027                 return err;
3028
3029         pci_set_power_state(pdev, PCI_D0);
3030         pci_set_master(pdev);
3031         pci_restore_state(pdev);
3032
3033         first_func = qlcnic_is_first_func(pdev);
3034
3035         if (qlcnic_api_lock(adapter))
3036                 return -EINVAL;
3037
3038         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3039                 adapter->need_fw_reset = 1;
3040                 set_bit(__QLCNIC_START_FW, &adapter->state);
3041                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3042                                     QLCNIC_DEV_INITIALIZING);
3043                 QLCDB(adapter, DRV, "Restarting fw\n");
3044         }
3045         qlcnic_api_unlock(adapter);
3046
3047         err = qlcnic_start_firmware(adapter);
3048         if (err)
3049                 return err;
3050
3051         qlcnic_clr_drv_state(adapter);
3052         kfree(adapter->msix_entries);
3053         adapter->msix_entries = NULL;
3054         err = qlcnic_setup_intr(adapter, 0);
3055
3056         if (err) {
3057                 kfree(adapter->msix_entries);
3058                 netdev_err(netdev, "failed to setup interrupt\n");
3059                 return err;
3060         }
3061
3062         if (qlcnic_83xx_check(adapter)) {
3063                 /* register for NIC IDC AEN Events */
3064                 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3065                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3066                 if (err) {
3067                         dev_err(&adapter->pdev->dev,
3068                                 "failed to setup mbx interrupt\n");
3069                         qlcnic_clr_all_drv_state(adapter, 1);
3070                         clear_bit(__QLCNIC_AER, &adapter->state);
3071                         goto done;
3072                 }
3073         }
3074
3075         if (netif_running(netdev)) {
3076                 err = qlcnic_attach(adapter);
3077                 if (err) {
3078                         qlcnic_clr_all_drv_state(adapter, 1);
3079                         clear_bit(__QLCNIC_AER, &adapter->state);
3080                         netif_device_attach(netdev);
3081                         return err;
3082                 }
3083
3084                 err = qlcnic_up(adapter, netdev);
3085                 if (err)
3086                         goto done;
3087
3088                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3089         }
3090  done:
3091         netif_device_attach(netdev);
3092         return err;
3093 }
3094
3095 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3096                                                 pci_channel_state_t state)
3097 {
3098         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3099         struct net_device *netdev = adapter->netdev;
3100
3101         if (state == pci_channel_io_perm_failure)
3102                 return PCI_ERS_RESULT_DISCONNECT;
3103
3104         if (state == pci_channel_io_normal)
3105                 return PCI_ERS_RESULT_RECOVERED;
3106
3107         set_bit(__QLCNIC_AER, &adapter->state);
3108         netif_device_detach(netdev);
3109
3110         cancel_delayed_work_sync(&adapter->fw_work);
3111
3112         if (netif_running(netdev))
3113                 qlcnic_down(adapter, netdev);
3114
3115         if (qlcnic_83xx_check(adapter)) {
3116                 qlcnic_83xx_free_mbx_intr(adapter);
3117                 qlcnic_83xx_register_nic_idc_func(adapter, 0);
3118                 cancel_delayed_work_sync(&adapter->idc_aen_work);
3119         }
3120
3121         qlcnic_detach(adapter);
3122         qlcnic_teardown_intr(adapter);
3123
3124         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3125
3126         pci_save_state(pdev);
3127         pci_disable_device(pdev);
3128
3129         return PCI_ERS_RESULT_NEED_RESET;
3130 }
3131
3132 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3133 {
3134         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3135                                 PCI_ERS_RESULT_RECOVERED;
3136 }
3137
3138 static void qlcnic_io_resume(struct pci_dev *pdev)
3139 {
3140         u32 state;
3141         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3142
3143         pci_cleanup_aer_uncorrect_error_status(pdev);
3144         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3145         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3146                                                             &adapter->state))
3147                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3148                                                 FW_POLL_DELAY);
3149 }
3150
3151 static int
3152 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3153 {
3154         int err;
3155
3156         err = qlcnic_can_start_firmware(adapter);
3157         if (err)
3158                 return err;
3159
3160         err = qlcnic_check_npar_opertional(adapter);
3161         if (err)
3162                 return err;
3163
3164         err = qlcnic_initialize_nic(adapter);
3165         if (err)
3166                 return err;
3167
3168         qlcnic_check_options(adapter);
3169
3170         err = qlcnic_set_eswitch_port_config(adapter);
3171         if (err)
3172                 return err;
3173
3174         adapter->need_fw_reset = 0;
3175
3176         return err;
3177 }
3178
3179 int qlcnic_validate_max_rss(u8 max_hw, u8 val)
3180 {
3181         u32 max_allowed;
3182
3183         if (max_hw > QLC_MAX_SDS_RINGS) {
3184                 max_hw = QLC_MAX_SDS_RINGS;
3185                 pr_info("max rss reset to %d\n", QLC_MAX_SDS_RINGS);
3186         }
3187
3188         max_allowed = rounddown_pow_of_two(min_t(int, max_hw,
3189                                                  num_online_cpus()));
3190         if ((val > max_allowed) || (val < 2) || !is_power_of_2(val)) {
3191                 pr_info("rss_ring valid range [2 - %x] in powers of 2\n",
3192                         max_allowed);
3193                 return -EINVAL;
3194         }
3195         return 0;
3196 }
3197
3198 int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data, size_t len)
3199 {
3200         int err;
3201         struct net_device *netdev = adapter->netdev;
3202
3203         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3204                 return -EBUSY;
3205
3206         netif_device_detach(netdev);
3207         if (netif_running(netdev))
3208                 __qlcnic_down(adapter, netdev);
3209
3210         qlcnic_detach(adapter);
3211
3212         if (qlcnic_83xx_check(adapter))
3213                 qlcnic_83xx_free_mbx_intr(adapter);
3214
3215         qlcnic_teardown_intr(adapter);
3216         err = qlcnic_setup_intr(adapter, data);
3217         if (err) {
3218                 kfree(adapter->msix_entries);
3219                 netdev_err(netdev, "failed to setup interrupt\n");
3220                 return err;
3221         }
3222
3223         if (qlcnic_83xx_check(adapter)) {
3224                 /* register for NIC IDC AEN Events */
3225                 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3226                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3227                 if (err) {
3228                         dev_err(&adapter->pdev->dev,
3229                                 "failed to setup mbx interrupt\n");
3230                         goto done;
3231                 }
3232         }
3233
3234         if (netif_running(netdev)) {
3235                 err = qlcnic_attach(adapter);
3236                 if (err)
3237                         goto done;
3238                 err = __qlcnic_up(adapter, netdev);
3239                 if (err)
3240                         goto done;
3241                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3242         }
3243         err = len;
3244  done:
3245         netif_device_attach(netdev);
3246         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3247         return err;
3248 }
3249
3250 #ifdef CONFIG_INET
3251
3252 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
3253
3254 static void
3255 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
3256                         struct net_device *dev, unsigned long event)
3257 {
3258         struct in_device *indev;
3259
3260         indev = in_dev_get(dev);
3261         if (!indev)
3262                 return;
3263
3264         for_ifa(indev) {
3265                 switch (event) {
3266                 case NETDEV_UP:
3267                         qlcnic_config_ipaddr(adapter,
3268                                         ifa->ifa_address, QLCNIC_IP_UP);
3269                         break;
3270                 case NETDEV_DOWN:
3271                         qlcnic_config_ipaddr(adapter,
3272                                         ifa->ifa_address, QLCNIC_IP_DOWN);
3273                         break;
3274                 default:
3275                         break;
3276                 }
3277         } endfor_ifa(indev);
3278
3279         in_dev_put(indev);
3280 }
3281
3282 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
3283 {
3284         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3285         struct net_device *dev;
3286         u16 vid;
3287
3288         qlcnic_config_indev_addr(adapter, netdev, event);
3289
3290         rcu_read_lock();
3291         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
3292                 dev = __vlan_find_dev_deep(netdev, vid);
3293                 if (!dev)
3294                         continue;
3295                 qlcnic_config_indev_addr(adapter, dev, event);
3296         }
3297         rcu_read_unlock();
3298 }
3299
3300 static int qlcnic_netdev_event(struct notifier_block *this,
3301                                  unsigned long event, void *ptr)
3302 {
3303         struct qlcnic_adapter *adapter;
3304         struct net_device *dev = (struct net_device *)ptr;
3305
3306 recheck:
3307         if (dev == NULL)
3308                 goto done;
3309
3310         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3311                 dev = vlan_dev_real_dev(dev);
3312                 goto recheck;
3313         }
3314
3315         if (!is_qlcnic_netdev(dev))
3316                 goto done;
3317
3318         adapter = netdev_priv(dev);
3319
3320         if (!adapter)
3321                 goto done;
3322
3323         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3324                 goto done;
3325
3326         qlcnic_config_indev_addr(adapter, dev, event);
3327 done:
3328         return NOTIFY_DONE;
3329 }
3330
3331 static int
3332 qlcnic_inetaddr_event(struct notifier_block *this,
3333                 unsigned long event, void *ptr)
3334 {
3335         struct qlcnic_adapter *adapter;
3336         struct net_device *dev;
3337
3338         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3339
3340         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3341
3342 recheck:
3343         if (dev == NULL)
3344                 goto done;
3345
3346         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3347                 dev = vlan_dev_real_dev(dev);
3348                 goto recheck;
3349         }
3350
3351         if (!is_qlcnic_netdev(dev))
3352                 goto done;
3353
3354         adapter = netdev_priv(dev);
3355
3356         if (!adapter)
3357                 goto done;
3358
3359         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3360                 goto done;
3361
3362         switch (event) {
3363         case NETDEV_UP:
3364                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
3365
3366                 break;
3367         case NETDEV_DOWN:
3368                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
3369
3370                 break;
3371         default:
3372                 break;
3373         }
3374
3375 done:
3376         return NOTIFY_DONE;
3377 }
3378
3379 static struct notifier_block    qlcnic_netdev_cb = {
3380         .notifier_call = qlcnic_netdev_event,
3381 };
3382
3383 static struct notifier_block qlcnic_inetaddr_cb = {
3384         .notifier_call = qlcnic_inetaddr_event,
3385 };
3386 #else
3387 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
3388 { }
3389 #endif
3390 static const struct pci_error_handlers qlcnic_err_handler = {
3391         .error_detected = qlcnic_io_error_detected,
3392         .slot_reset = qlcnic_io_slot_reset,
3393         .resume = qlcnic_io_resume,
3394 };
3395
3396 static struct pci_driver qlcnic_driver = {
3397         .name = qlcnic_driver_name,
3398         .id_table = qlcnic_pci_tbl,
3399         .probe = qlcnic_probe,
3400         .remove = qlcnic_remove,
3401 #ifdef CONFIG_PM
3402         .suspend = qlcnic_suspend,
3403         .resume = qlcnic_resume,
3404 #endif
3405         .shutdown = qlcnic_shutdown,
3406         .err_handler = &qlcnic_err_handler
3407
3408 };
3409
3410 static int __init qlcnic_init_module(void)
3411 {
3412         int ret;
3413
3414         printk(KERN_INFO "%s\n", qlcnic_driver_string);
3415
3416 #ifdef CONFIG_INET
3417         register_netdevice_notifier(&qlcnic_netdev_cb);
3418         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
3419 #endif
3420
3421         ret = pci_register_driver(&qlcnic_driver);
3422         if (ret) {
3423 #ifdef CONFIG_INET
3424                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3425                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3426 #endif
3427         }
3428
3429         return ret;
3430 }
3431
3432 module_init(qlcnic_init_module);
3433
3434 static void __exit qlcnic_exit_module(void)
3435 {
3436         pci_unregister_driver(&qlcnic_driver);
3437
3438 #ifdef CONFIG_INET
3439         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3440         unregister_netdevice_notifier(&qlcnic_netdev_cb);
3441 #endif
3442 }
3443
3444 module_exit(qlcnic_exit_module);