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

   1 /*
   2  * QLogic qlcnic NIC Driver
   3  * Copyright (c)  2009-2010 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 net_device *netdev,
 251                         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                         dev_err(&pdev->dev, "failed allocating msix_entries\n");
 419                         return -ENOMEM;
 420                 }
 421         }
 422
 423         adapter->max_sds_rings = 1;
 424         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 425
 426         if (adapter->ahw->msix_supported) {
 427  enable_msix:
 428                 for (i = 0; i < num_msix; i++)
 429                         adapter->msix_entries[i].entry = i;
 430                 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
 431                 if (err == 0) {
 432                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 433                         if (qlcnic_83xx_check(adapter)) {
 434                                 adapter->ahw->num_msix = num_msix;
 435                                 /* subtract mail box and tx ring vectors */
 436                                 max_tx_rings = adapter->max_drv_tx_rings;
 437                                 adapter->max_sds_rings = num_msix -
 438                                                          max_tx_rings - 1;
 439                         } else {
 440                                 adapter->max_sds_rings = num_msix;
 441                         }
 442                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 443                         return err;
 444                 } else if (err > 0) {
 445                         dev_info(&pdev->dev,
 446                                  "Unable to allocate %d MSI-X interrupt vectors\n",
 447                                  num_msix);
 448                         if (qlcnic_83xx_check(adapter)) {
 449                                 if (err < QLC_83XX_MINIMUM_VECTOR)
 450                                         return err;
 451                                 err -= (adapter->max_drv_tx_rings + 1);
 452                                 num_msix = rounddown_pow_of_two(err);
 453                                 num_msix += (adapter->max_drv_tx_rings + 1);
 454                         } else {
 455                                 num_msix = rounddown_pow_of_two(err);
 456                         }
 457
 458                         if (num_msix) {
 459                                 dev_info(&pdev->dev,
 460                                          "Trying %d MSI-X interrupt vectors\n",
 461                                          num_msix);
 462                                 goto enable_msix;
 463                         }
 464                 } else {
 465                         dev_info(&pdev->dev, "Failed to get %d vectors\n",
 466                                  num_msix);
 467                 }
 468         }
 469
 470         return err;
 471 }
 472
 473 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
 474 {
 475         int err = 0;
 476         u32 offset, mask_reg;
 477         const struct qlcnic_legacy_intr_set *legacy_intrp;
 478         struct qlcnic_hardware_context *ahw = adapter->ahw;
 479         struct pci_dev *pdev = adapter->pdev;
 480
 481         if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
 482                 adapter->flags |= QLCNIC_MSI_ENABLED;
 483                 offset = msi_tgt_status[adapter->ahw->pci_func];
 484                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
 485                                                             offset);
 486                 dev_info(&pdev->dev, "using msi interrupts\n");
 487                 adapter->msix_entries[0].vector = pdev->irq;
 488                 return err;
 489         }
 490         if (qlcnic_use_msi || qlcnic_use_msi_x)
 491                 return -EOPNOTSUPP;
 492
 493         legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
 494         adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
 495         offset = legacy_intrp->tgt_status_reg;
 496         adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
 497         mask_reg = legacy_intrp->tgt_mask_reg;
 498         adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
 499         adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
 500         adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
 501         dev_info(&pdev->dev, "using legacy interrupts\n");
 502         adapter->msix_entries[0].vector = pdev->irq;
 503         return err;
 504 }
 505
 506 int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter, u8 num_intr)
 507 {
 508         int num_msix, err = 0;
 509
 510         if (!num_intr)
 511                 num_intr = QLCNIC_DEF_NUM_STS_DESC_RINGS;
 512
 513         if (adapter->ahw->msix_supported)
 514                 num_msix = rounddown_pow_of_two(min_t(int, num_online_cpus(),
 515                                                 num_intr));
 516         else
 517                 num_msix = 1;
 518
 519         err = qlcnic_enable_msix(adapter, num_msix);
 520         if (err == -ENOMEM || !err)
 521                 return err;
 522
 523         err = qlcnic_enable_msi_legacy(adapter);
 524         if (!err)
 525                 return err;
 526
 527         return -EIO;
 528 }
 529
 530 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 531 {
 532         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 533                 pci_disable_msix(adapter->pdev);
 534         if (adapter->flags & QLCNIC_MSI_ENABLED)
 535                 pci_disable_msi(adapter->pdev);
 536
 537         kfree(adapter->msix_entries);
 538         adapter->msix_entries = NULL;
 539
 540         if (adapter->ahw->intr_tbl) {
 541                 vfree(adapter->ahw->intr_tbl);
 542                 adapter->ahw->intr_tbl = NULL;
 543         }
 544 }
 545
 546 static void
 547 qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter)
 548 {
 549         if (adapter->ahw->pci_base0 != NULL)
 550                 iounmap(adapter->ahw->pci_base0);
 551 }
 552
 553 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
 554 {
 555         struct qlcnic_pci_info *pci_info;
 556         int ret;
 557
 558         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 559                 switch (adapter->ahw->port_type) {
 560                 case QLCNIC_GBE:
 561                         adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_GBE_PORTS;
 562                         break;
 563                 case QLCNIC_XGBE:
 564                         adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_XG_PORTS;
 565                         break;
 566                 }
 567                 return 0;
 568         }
 569
 570         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
 571                 return 0;
 572
 573         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 574         if (!pci_info)
 575                 return -ENOMEM;
 576
 577         ret = qlcnic_get_pci_info(adapter, pci_info);
 578         kfree(pci_info);
 579         return ret;
 580 }
 581
 582 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 583 {
 584         struct qlcnic_pci_info *pci_info;
 585         int i, ret = 0, j = 0;
 586         u16 act_pci_func;
 587         u8 pfn;
 588
 589         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 590         if (!pci_info)
 591                 return -ENOMEM;
 592
 593         ret = qlcnic_get_pci_info(adapter, pci_info);
 594         if (ret)
 595                 goto err_pci_info;
 596
 597         act_pci_func = adapter->ahw->act_pci_func;
 598
 599         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
 600                                  act_pci_func, GFP_KERNEL);
 601         if (!adapter->npars) {
 602                 ret = -ENOMEM;
 603                 goto err_pci_info;
 604         }
 605
 606         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
 607                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
 608         if (!adapter->eswitch) {
 609                 ret = -ENOMEM;
 610                 goto err_npars;
 611         }
 612
 613         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 614                 pfn = pci_info[i].id;
 615
 616                 if (pfn >= QLCNIC_MAX_PCI_FUNC) {
 617                         ret = QL_STATUS_INVALID_PARAM;
 618                         goto err_eswitch;
 619                 }
 620
 621                 if (!pci_info[i].active ||
 622                     (pci_info[i].type != QLCNIC_TYPE_NIC))
 623                         continue;
 624
 625                 adapter->npars[j].pci_func = pfn;
 626                 adapter->npars[j].active = (u8)pci_info[i].active;
 627                 adapter->npars[j].type = (u8)pci_info[i].type;
 628                 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
 629                 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
 630                 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
 631                 j++;
 632         }
 633
 634         for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++) {
 635                 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
 636                 if (qlcnic_83xx_check(adapter))
 637                         qlcnic_enable_eswitch(adapter, i, 1);
 638         }
 639
 640         kfree(pci_info);
 641         return 0;
 642
 643 err_eswitch:
 644         kfree(adapter->eswitch);
 645         adapter->eswitch = NULL;
 646 err_npars:
 647         kfree(adapter->npars);
 648         adapter->npars = NULL;
 649 err_pci_info:
 650         kfree(pci_info);
 651
 652         return ret;
 653 }
 654
 655 static int
 656 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
 657 {
 658         u8 id;
 659         int i, ret = 1;
 660         u32 data = QLCNIC_MGMT_FUNC;
 661         struct qlcnic_hardware_context *ahw = adapter->ahw;
 662
 663         ret = qlcnic_api_lock(adapter);
 664         if (ret)
 665                 goto err_lock;
 666
 667         if (qlcnic_config_npars) {
 668                 for (i = 0; i < ahw->act_pci_func; i++) {
 669                         id = adapter->npars[i].pci_func;
 670                         if (id == ahw->pci_func)
 671                                 continue;
 672                         data |= (qlcnic_config_npars &
 673                                         QLC_DEV_SET_DRV(0xf, id));
 674                 }
 675         } else {
 676                 data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 677                 data = (data & ~QLC_DEV_SET_DRV(0xf, ahw->pci_func)) |
 678                         (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
 679                                          ahw->pci_func));
 680         }
 681         QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
 682         qlcnic_api_unlock(adapter);
 683 err_lock:
 684         return ret;
 685 }
 686
 687 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
 688                             const struct pci_device_id *ent)
 689 {
 690         u32 op_mode, priv_level;
 691
 692         /* Determine FW API version */
 693         adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
 694                                                            QLCNIC_FW_API);
 695
 696         /* Find PCI function number */
 697         qlcnic_get_func_no(adapter);
 698
 699         /* Determine function privilege level */
 700         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 701         if (op_mode == QLC_DEV_DRV_DEFAULT)
 702                 priv_level = QLCNIC_MGMT_FUNC;
 703         else
 704                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
 705
 706         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
 707                 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
 708                 dev_info(&adapter->pdev->dev,
 709                         "HAL Version: %d Non Privileged function\n",
 710                          adapter->ahw->fw_hal_version);
 711                 adapter->nic_ops = &qlcnic_vf_ops;
 712         } else
 713                 adapter->nic_ops = &qlcnic_ops;
 714 }
 715
 716 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
 717 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
 718 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
 719 {
 720         switch (dev_id) {
 721         case PCI_DEVICE_ID_QLOGIC_QLE824X:
 722                 *bar = QLCNIC_82XX_BAR0_LENGTH;
 723                 break;
 724         case PCI_DEVICE_ID_QLOGIC_QLE834X:
 725                 *bar = QLCNIC_83XX_BAR0_LENGTH;
 726                 break;
 727         default:
 728                 *bar = 0;
 729         }
 730 }
 731
 732 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
 733                                 struct qlcnic_hardware_context *ahw)
 734 {
 735         u32 offset;
 736         void __iomem *mem_ptr0 = NULL;
 737         unsigned long mem_len, pci_len0 = 0, bar0_len;
 738
 739         /* remap phys address */
 740         mem_len = pci_resource_len(pdev, 0);
 741
 742         qlcnic_get_bar_length(pdev->device, &bar0_len);
 743         if (mem_len >= bar0_len) {
 744
 745                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
 746                 if (mem_ptr0 == NULL) {
 747                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
 748                         return -EIO;
 749                 }
 750                 pci_len0 = mem_len;
 751         } else {
 752                 return -EIO;
 753         }
 754
 755         dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
 756
 757         ahw->pci_base0 = mem_ptr0;
 758         ahw->pci_len0 = pci_len0;
 759         offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
 760         qlcnic_get_ioaddr(ahw, offset);
 761
 762         return 0;
 763 }
 764
 765 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
 766 {
 767         struct pci_dev *pdev = adapter->pdev;
 768         int i, found = 0;
 769
 770         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
 771                 if (qlcnic_boards[i].vendor == pdev->vendor &&
 772                         qlcnic_boards[i].device == pdev->device &&
 773                         qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
 774                         qlcnic_boards[i].sub_device == pdev->subsystem_device) {
 775                                 sprintf(name, "%pM: %s" ,
 776                                         adapter->mac_addr,
 777                                         qlcnic_boards[i].short_name);
 778                                 found = 1;
 779                                 break;
 780                 }
 781
 782         }
 783
 784         if (!found)
 785                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
 786 }
 787
 788 static void
 789 qlcnic_check_options(struct qlcnic_adapter *adapter)
 790 {
 791         int err;
 792         u32 fw_major, fw_minor, fw_build, prev_fw_version;
 793         struct pci_dev *pdev = adapter->pdev;
 794         struct qlcnic_hardware_context *ahw = adapter->ahw;
 795         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
 796
 797         prev_fw_version = adapter->fw_version;
 798
 799         fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
 800         fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
 801         fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
 802
 803         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
 804
 805         err = qlcnic_get_board_info(adapter);
 806         if (err) {
 807                 dev_err(&pdev->dev, "Error getting board config info.\n");
 808                 return;
 809         }
 810         if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
 811                 if (fw_dump->tmpl_hdr == NULL ||
 812                                 adapter->fw_version > prev_fw_version) {
 813                         if (fw_dump->tmpl_hdr)
 814                                 vfree(fw_dump->tmpl_hdr);
 815                         if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
 816                                 dev_info(&pdev->dev,
 817                                         "Supports FW dump capability\n");
 818                 }
 819         }
 820
 821         dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
 822                  QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
 823
 824         if (adapter->ahw->port_type == QLCNIC_XGBE) {
 825                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 826                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
 827                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
 828                 } else {
 829                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
 830                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
 831                 }
 832
 833                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 834                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 835
 836         } else if (adapter->ahw->port_type == QLCNIC_GBE) {
 837                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
 838                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 839                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 840                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
 841         }
 842
 843         adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
 844
 845         adapter->num_txd = MAX_CMD_DESCRIPTORS;
 846
 847         adapter->max_rds_rings = MAX_RDS_RINGS;
 848 }
 849
 850 static int
 851 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
 852 {
 853         int err;
 854         struct qlcnic_info nic_info;
 855
 856         memset(&nic_info, 0, sizeof(struct qlcnic_info));
 857         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
 858         if (err)
 859                 return err;
 860
 861         adapter->ahw->physical_port = (u8)nic_info.phys_port;
 862         adapter->ahw->switch_mode = nic_info.switch_mode;
 863         adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
 864         adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
 865         adapter->ahw->capabilities = nic_info.capabilities;
 866
 867         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
 868                 u32 temp;
 869                 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
 870                 adapter->ahw->capabilities2 = temp;
 871         }
 872         adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
 873         adapter->ahw->max_mtu = nic_info.max_mtu;
 874
 875         /* Disable NPAR for 83XX */
 876         if (qlcnic_83xx_check(adapter))
 877                 return err;
 878
 879         if (adapter->ahw->capabilities & BIT_6)
 880                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
 881         else
 882                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
 883
 884         return err;
 885 }
 886
 887 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
 888                             struct qlcnic_esw_func_cfg *esw_cfg)
 889 {
 890         if (esw_cfg->discard_tagged)
 891                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
 892         else
 893                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
 894
 895         if (esw_cfg->vlan_id)
 896                 adapter->pvid = esw_cfg->vlan_id;
 897         else
 898                 adapter->pvid = 0;
 899 }
 900
 901 static int
 902 qlcnic_vlan_rx_add(struct net_device *netdev, u16 vid)
 903 {
 904         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 905         set_bit(vid, adapter->vlans);
 906         return 0;
 907 }
 908
 909 static int
 910 qlcnic_vlan_rx_del(struct net_device *netdev, u16 vid)
 911 {
 912         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 913
 914         qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
 915         clear_bit(vid, adapter->vlans);
 916         return 0;
 917 }
 918
 919 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
 920                                       struct qlcnic_esw_func_cfg *esw_cfg)
 921 {
 922         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
 923                                 QLCNIC_PROMISC_DISABLED);
 924
 925         if (esw_cfg->mac_anti_spoof)
 926                 adapter->flags |= QLCNIC_MACSPOOF;
 927
 928         if (!esw_cfg->mac_override)
 929                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
 930
 931         if (!esw_cfg->promisc_mode)
 932                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
 933
 934         qlcnic_set_netdev_features(adapter, esw_cfg);
 935 }
 936
 937 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
 938 {
 939         struct qlcnic_esw_func_cfg esw_cfg;
 940
 941         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
 942                 return 0;
 943
 944         esw_cfg.pci_func = adapter->ahw->pci_func;
 945         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
 946                         return -EIO;
 947         qlcnic_set_vlan_config(adapter, &esw_cfg);
 948         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
 949
 950         return 0;
 951 }
 952
 953 static void
 954 qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
 955                 struct qlcnic_esw_func_cfg *esw_cfg)
 956 {
 957         struct net_device *netdev = adapter->netdev;
 958         unsigned long features, vlan_features;
 959
 960         if (qlcnic_83xx_check(adapter))
 961                 return;
 962
 963         features = (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
 964                     NETIF_F_IPV6_CSUM | NETIF_F_GRO);
 965         vlan_features = (NETIF_F_SG | NETIF_F_IP_CSUM |
 966                         NETIF_F_IPV6_CSUM);
 967
 968         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
 969                 features |= (NETIF_F_TSO | NETIF_F_TSO6);
 970                 vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
 971         }
 972
 973         if (netdev->features & NETIF_F_LRO)
 974                 features |= NETIF_F_LRO;
 975
 976         if (esw_cfg->offload_flags & BIT_0) {
 977                 netdev->features |= features;
 978                 adapter->rx_csum = 1;
 979                 if (!(esw_cfg->offload_flags & BIT_1)) {
 980                         netdev->features &= ~NETIF_F_TSO;
 981                         features &= ~NETIF_F_TSO;
 982                 }
 983                 if (!(esw_cfg->offload_flags & BIT_2)) {
 984                         netdev->features &= ~NETIF_F_TSO6;
 985                         features &= ~NETIF_F_TSO6;
 986                 }
 987         } else {
 988                 netdev->features &= ~features;
 989                 features &= ~features;
 990                 adapter->rx_csum = 0;
 991         }
 992
 993         netdev->vlan_features = (features & vlan_features);
 994 }
 995
 996 static int
 997 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
 998 {
 999         u32 op_mode, priv_level;
1000         int err = 0;
1001
1002         err = qlcnic_initialize_nic(adapter);
1003         if (err)
1004                 return err;
1005
1006         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1007                 return 0;
1008
1009         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1010         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1011
1012         if (op_mode == QLC_DEV_DRV_DEFAULT)
1013                 priv_level = QLCNIC_MGMT_FUNC;
1014         else
1015                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1016
1017         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1018                 if (priv_level == QLCNIC_MGMT_FUNC) {
1019                         adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1020                         err = qlcnic_init_pci_info(adapter);
1021                         if (err)
1022                                 return err;
1023                         /* Set privilege level for other functions */
1024                         qlcnic_set_function_modes(adapter);
1025                         dev_info(&adapter->pdev->dev,
1026                                 "HAL Version: %d, Management function\n",
1027                                  adapter->ahw->fw_hal_version);
1028                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1029                         adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1030                         dev_info(&adapter->pdev->dev,
1031                                 "HAL Version: %d, Privileged function\n",
1032                                  adapter->ahw->fw_hal_version);
1033                 }
1034         }
1035
1036         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1037
1038         return err;
1039 }
1040
1041 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1042 {
1043         struct qlcnic_esw_func_cfg esw_cfg;
1044         struct qlcnic_npar_info *npar;
1045         u8 i;
1046
1047         if (adapter->need_fw_reset)
1048                 return 0;
1049
1050         for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1051                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1052                 esw_cfg.pci_func = adapter->npars[i].pci_func;
1053                 esw_cfg.mac_override = BIT_0;
1054                 esw_cfg.promisc_mode = BIT_0;
1055                 if (qlcnic_82xx_check(adapter)) {
1056                         esw_cfg.offload_flags = BIT_0;
1057                         if (QLCNIC_IS_TSO_CAPABLE(adapter))
1058                                 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1059                 }
1060                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1061                         return -EIO;
1062                 npar = &adapter->npars[i];
1063                 npar->pvid = esw_cfg.vlan_id;
1064                 npar->mac_override = esw_cfg.mac_override;
1065                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1066                 npar->discard_tagged = esw_cfg.discard_tagged;
1067                 npar->promisc_mode = esw_cfg.promisc_mode;
1068                 npar->offload_flags = esw_cfg.offload_flags;
1069         }
1070
1071         return 0;
1072 }
1073
1074
1075 static int
1076 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1077                         struct qlcnic_npar_info *npar, int pci_func)
1078 {
1079         struct qlcnic_esw_func_cfg esw_cfg;
1080         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1081         esw_cfg.pci_func = pci_func;
1082         esw_cfg.vlan_id = npar->pvid;
1083         esw_cfg.mac_override = npar->mac_override;
1084         esw_cfg.discard_tagged = npar->discard_tagged;
1085         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1086         esw_cfg.offload_flags = npar->offload_flags;
1087         esw_cfg.promisc_mode = npar->promisc_mode;
1088         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1089                 return -EIO;
1090
1091         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1092         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1093                 return -EIO;
1094
1095         return 0;
1096 }
1097
1098 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1099 {
1100         int i, err;
1101         struct qlcnic_npar_info *npar;
1102         struct qlcnic_info nic_info;
1103         u8 pci_func;
1104
1105         if (qlcnic_82xx_check(adapter))
1106                 if (!adapter->need_fw_reset)
1107                         return 0;
1108
1109         /* Set the NPAR config data after FW reset */
1110         for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1111                 npar = &adapter->npars[i];
1112                 pci_func = npar->pci_func;
1113                 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1114                 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1115                 if (err)
1116                         return err;
1117                 nic_info.min_tx_bw = npar->min_bw;
1118                 nic_info.max_tx_bw = npar->max_bw;
1119                 err = qlcnic_set_nic_info(adapter, &nic_info);
1120                 if (err)
1121                         return err;
1122
1123                 if (npar->enable_pm) {
1124                         err = qlcnic_config_port_mirroring(adapter,
1125                                                            npar->dest_npar, 1,
1126                                                            pci_func);
1127                         if (err)
1128                                 return err;
1129                 }
1130                 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1131                 if (err)
1132                         return err;
1133         }
1134         return 0;
1135 }
1136
1137 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1138 {
1139         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1140         u32 npar_state;
1141
1142         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1143                 return 0;
1144
1145         npar_state = QLC_SHARED_REG_RD32(adapter,
1146                                          QLCNIC_CRB_DEV_NPAR_STATE);
1147         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1148                 msleep(1000);
1149                 npar_state = QLC_SHARED_REG_RD32(adapter,
1150                                                  QLCNIC_CRB_DEV_NPAR_STATE);
1151         }
1152         if (!npar_opt_timeo) {
1153                 dev_err(&adapter->pdev->dev,
1154                         "Waiting for NPAR state to opertional timeout\n");
1155                 return -EIO;
1156         }
1157         return 0;
1158 }
1159
1160 static int
1161 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1162 {
1163         int err;
1164
1165         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1166             adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1167                 return 0;
1168
1169         err = qlcnic_set_default_offload_settings(adapter);
1170         if (err)
1171                 return err;
1172
1173         err = qlcnic_reset_npar_config(adapter);
1174         if (err)
1175                 return err;
1176
1177         qlcnic_dev_set_npar_ready(adapter);
1178
1179         if (qlcnic_83xx_check(adapter))
1180                 qlcnic_83xx_register_nic_idc_func(adapter, 1);
1181         return err;
1182 }
1183
1184 int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1185 {
1186         int err;
1187
1188         err = qlcnic_can_start_firmware(adapter);
1189         if (err < 0)
1190                 return err;
1191         else if (!err)
1192                 goto check_fw_status;
1193
1194         if (qlcnic_load_fw_file)
1195                 qlcnic_request_firmware(adapter);
1196         else {
1197                 err = qlcnic_check_flash_fw_ver(adapter);
1198                 if (err)
1199                         goto err_out;
1200
1201                 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1202         }
1203
1204         err = qlcnic_need_fw_reset(adapter);
1205         if (err == 0)
1206                 goto check_fw_status;
1207
1208         err = qlcnic_pinit_from_rom(adapter);
1209         if (err)
1210                 goto err_out;
1211
1212         err = qlcnic_load_firmware(adapter);
1213         if (err)
1214                 goto err_out;
1215
1216         qlcnic_release_firmware(adapter);
1217         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1218
1219 check_fw_status:
1220         err = qlcnic_check_fw_status(adapter);
1221         if (err)
1222                 goto err_out;
1223
1224         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1225         qlcnic_idc_debug_info(adapter, 1);
1226         err = qlcnic_check_eswitch_mode(adapter);
1227         if (err) {
1228                 dev_err(&adapter->pdev->dev,
1229                         "Memory allocation failed for eswitch\n");
1230                 goto err_out;
1231         }
1232         err = qlcnic_set_mgmt_operations(adapter);
1233         if (err)
1234                 goto err_out;
1235
1236         qlcnic_check_options(adapter);
1237         adapter->need_fw_reset = 0;
1238
1239         qlcnic_release_firmware(adapter);
1240         return 0;
1241
1242 err_out:
1243         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1244         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1245
1246         qlcnic_release_firmware(adapter);
1247         return err;
1248 }
1249
1250 static int
1251 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1252 {
1253         irq_handler_t handler;
1254         struct qlcnic_host_sds_ring *sds_ring;
1255         struct qlcnic_host_tx_ring *tx_ring;
1256         int err, ring;
1257
1258         unsigned long flags = 0;
1259         struct net_device *netdev = adapter->netdev;
1260         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1261
1262         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1263                 if (qlcnic_82xx_check(adapter))
1264                         handler = qlcnic_tmp_intr;
1265                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1266                         flags |= IRQF_SHARED;
1267
1268         } else {
1269                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1270                         handler = qlcnic_msix_intr;
1271                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1272                         handler = qlcnic_msi_intr;
1273                 else {
1274                         flags |= IRQF_SHARED;
1275                         handler = qlcnic_intr;
1276                 }
1277         }
1278         adapter->irq = netdev->irq;
1279
1280         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1281                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1282                         sds_ring = &recv_ctx->sds_rings[ring];
1283                         snprintf(sds_ring->name, sizeof(int) + IFNAMSIZ,
1284                                  "%s[%d]", netdev->name, ring);
1285                         err = request_irq(sds_ring->irq, handler, flags,
1286                                           sds_ring->name, sds_ring);
1287                         if (err)
1288                                 return err;
1289                 }
1290                 if (qlcnic_83xx_check(adapter) &&
1291                     (adapter->flags & QLCNIC_MSIX_ENABLED)) {
1292                         handler = qlcnic_msix_tx_intr;
1293                         for (ring = 0; ring < adapter->max_drv_tx_rings;
1294                              ring++) {
1295                                 tx_ring = &adapter->tx_ring[ring];
1296                                 snprintf(tx_ring->name, sizeof(int) + IFNAMSIZ,
1297                                          "%s[%d]", netdev->name,
1298                                 adapter->max_sds_rings + ring);
1299                                 err = request_irq(tx_ring->irq, handler, flags,
1300                                                   tx_ring->name, tx_ring);
1301                                 if (err)
1302                                         return err;
1303                         }
1304                 }
1305         }
1306         return 0;
1307 }
1308
1309 static void
1310 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1311 {
1312         int ring;
1313         struct qlcnic_host_sds_ring *sds_ring;
1314         struct qlcnic_host_tx_ring *tx_ring;
1315
1316         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1317
1318         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1319                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1320                         sds_ring = &recv_ctx->sds_rings[ring];
1321                         free_irq(sds_ring->irq, sds_ring);
1322                 }
1323                 if (qlcnic_83xx_check(adapter)) {
1324                         for (ring = 0; ring < adapter->max_drv_tx_rings;
1325                              ring++) {
1326                                 tx_ring = &adapter->tx_ring[ring];
1327                                 if (tx_ring->irq)
1328                                         free_irq(tx_ring->irq, tx_ring);
1329                         }
1330                 }
1331         }
1332 }
1333
1334 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1335 {
1336         int ring;
1337         u32 capab2;
1338
1339         struct qlcnic_host_rds_ring *rds_ring;
1340
1341         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1342                 return -EIO;
1343
1344         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1345                 return 0;
1346         if (qlcnic_set_eswitch_port_config(adapter))
1347                 return -EIO;
1348
1349         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1350                 capab2 = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
1351                 if (capab2 & QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1352                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1353         }
1354
1355         if (qlcnic_fw_create_ctx(adapter))
1356                 return -EIO;
1357
1358         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1359                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1360                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1361         }
1362
1363         qlcnic_set_multi(netdev);
1364         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1365
1366         adapter->ahw->linkup = 0;
1367
1368         if (adapter->max_sds_rings > 1)
1369                 qlcnic_config_rss(adapter, 1);
1370
1371         qlcnic_config_intr_coalesce(adapter);
1372
1373         if (netdev->features & NETIF_F_LRO)
1374                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1375
1376         qlcnic_napi_enable(adapter);
1377
1378         qlcnic_linkevent_request(adapter, 1);
1379
1380         adapter->ahw->reset_context = 0;
1381         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1382         return 0;
1383 }
1384
1385 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1386 {
1387         int err = 0;
1388
1389         rtnl_lock();
1390         if (netif_running(netdev))
1391                 err = __qlcnic_up(adapter, netdev);
1392         rtnl_unlock();
1393
1394         return err;
1395 }
1396
1397 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1398 {
1399         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1400                 return;
1401
1402         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1403                 return;
1404
1405         smp_mb();
1406         spin_lock(&adapter->tx_clean_lock);
1407         netif_carrier_off(netdev);
1408         netif_tx_disable(netdev);
1409
1410         qlcnic_free_mac_list(adapter);
1411
1412         if (adapter->fhash.fnum)
1413                 qlcnic_delete_lb_filters(adapter);
1414
1415         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1416
1417         qlcnic_napi_disable(adapter);
1418
1419         qlcnic_fw_destroy_ctx(adapter);
1420         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1421
1422         qlcnic_reset_rx_buffers_list(adapter);
1423         qlcnic_release_tx_buffers(adapter);
1424         spin_unlock(&adapter->tx_clean_lock);
1425 }
1426
1427 /* Usage: During suspend and firmware recovery module */
1428
1429 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1430 {
1431         rtnl_lock();
1432         if (netif_running(netdev))
1433                 __qlcnic_down(adapter, netdev);
1434         rtnl_unlock();
1435
1436 }
1437
1438 int
1439 qlcnic_attach(struct qlcnic_adapter *adapter)
1440 {
1441         struct net_device *netdev = adapter->netdev;
1442         struct pci_dev *pdev = adapter->pdev;
1443         int err;
1444
1445         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1446                 return 0;
1447
1448         err = qlcnic_napi_add(adapter, netdev);
1449         if (err)
1450                 return err;
1451
1452         err = qlcnic_alloc_sw_resources(adapter);
1453         if (err) {
1454                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1455                 goto err_out_napi_del;
1456         }
1457
1458         err = qlcnic_alloc_hw_resources(adapter);
1459         if (err) {
1460                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1461                 goto err_out_free_sw;
1462         }
1463
1464         err = qlcnic_request_irq(adapter);
1465         if (err) {
1466                 dev_err(&pdev->dev, "failed to setup interrupt\n");
1467                 goto err_out_free_hw;
1468         }
1469
1470         qlcnic_create_sysfs_entries(adapter);
1471
1472         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1473         return 0;
1474
1475 err_out_free_hw:
1476         qlcnic_free_hw_resources(adapter);
1477 err_out_free_sw:
1478         qlcnic_free_sw_resources(adapter);
1479 err_out_napi_del:
1480         qlcnic_napi_del(adapter);
1481         return err;
1482 }
1483
1484 void qlcnic_detach(struct qlcnic_adapter *adapter)
1485 {
1486         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1487                 return;
1488
1489         qlcnic_remove_sysfs_entries(adapter);
1490
1491         qlcnic_free_hw_resources(adapter);
1492         qlcnic_release_rx_buffers(adapter);
1493         qlcnic_free_irq(adapter);
1494         qlcnic_napi_del(adapter);
1495         qlcnic_free_sw_resources(adapter);
1496
1497         adapter->is_up = 0;
1498 }
1499
1500 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1501 {
1502         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1503         struct qlcnic_host_sds_ring *sds_ring;
1504         int ring;
1505
1506         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1507         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1508                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1509                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1510                         if (qlcnic_83xx_check(adapter))
1511                                 writel(1, sds_ring->crb_intr_mask);
1512                         else
1513                                 qlcnic_disable_int(sds_ring);
1514                 }
1515         }
1516
1517         qlcnic_fw_destroy_ctx(adapter);
1518
1519         qlcnic_detach(adapter);
1520
1521         adapter->ahw->diag_test = 0;
1522         adapter->max_sds_rings = max_sds_rings;
1523
1524         if (qlcnic_attach(adapter))
1525                 goto out;
1526
1527         if (netif_running(netdev))
1528                 __qlcnic_up(adapter, netdev);
1529 out:
1530         netif_device_attach(netdev);
1531 }
1532
1533 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
1534 {
1535         int err = 0;
1536         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
1537                                 GFP_KERNEL);
1538         if (!adapter->recv_ctx) {
1539                 dev_err(&adapter->pdev->dev,
1540                         "Failed to allocate recv ctx resources for adapter\n");
1541                 err = -ENOMEM;
1542                 goto err_out;
1543         }
1544         /* Initialize interrupt coalesce parameters */
1545         adapter->ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1546         adapter->ahw->coal.rx_time_us = QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
1547         adapter->ahw->coal.rx_packets = QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
1548         /* clear stats */
1549         memset(&adapter->stats, 0, sizeof(adapter->stats));
1550 err_out:
1551         return err;
1552 }
1553
1554 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
1555 {
1556         kfree(adapter->recv_ctx);
1557         adapter->recv_ctx = NULL;
1558
1559         if (adapter->ahw->fw_dump.tmpl_hdr) {
1560                 vfree(adapter->ahw->fw_dump.tmpl_hdr);
1561                 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1562         }
1563
1564         kfree(adapter->ahw->reset.buff);
1565         adapter->ahw->fw_dump.tmpl_hdr = NULL;
1566 }
1567
1568 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1569 {
1570         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1571         struct qlcnic_host_sds_ring *sds_ring;
1572         struct qlcnic_host_rds_ring *rds_ring;
1573         int ring;
1574         int ret;
1575
1576         netif_device_detach(netdev);
1577
1578         if (netif_running(netdev))
1579                 __qlcnic_down(adapter, netdev);
1580
1581         qlcnic_detach(adapter);
1582
1583         adapter->max_sds_rings = 1;
1584         adapter->ahw->diag_test = test;
1585         adapter->ahw->linkup = 0;
1586
1587         ret = qlcnic_attach(adapter);
1588         if (ret) {
1589                 netif_device_attach(netdev);
1590                 return ret;
1591         }
1592
1593         ret = qlcnic_fw_create_ctx(adapter);
1594         if (ret) {
1595                 qlcnic_detach(adapter);
1596                 netif_device_attach(netdev);
1597                 return ret;
1598         }
1599
1600         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1601                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1602                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1603         }
1604
1605         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1606                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1607                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1608                         if (qlcnic_82xx_check(adapter))
1609                                 qlcnic_enable_int(sds_ring);
1610                         else
1611                                 qlcnic_83xx_enable_intr(adapter, 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, size, vector, index;
1768         struct qlcnic_host_tx_ring *tx_ring;
1769         struct qlcnic_cmd_buffer *cmd_buf_arr;
1770
1771         size = adapter->max_drv_tx_rings * sizeof(struct qlcnic_host_tx_ring);
1772         tx_ring = kzalloc(size, GFP_KERNEL);
1773         if (tx_ring == NULL) {
1774                 dev_err(&netdev->dev, "failed to allocate tx rings\n");
1775                 return -ENOMEM;
1776         }
1777         adapter->tx_ring = tx_ring;
1778
1779         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1780                 tx_ring = &adapter->tx_ring[ring];
1781                 tx_ring->num_desc = adapter->num_txd;
1782                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
1783                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
1784                 if (cmd_buf_arr == NULL) {
1785                         dev_err(&netdev->dev,
1786                                 "failed to allocate cmd buffer ring\n");
1787                         qlcnic_free_tx_rings(adapter);
1788                         return -ENOMEM;
1789                 }
1790                 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
1791                 tx_ring->cmd_buf_arr = cmd_buf_arr;
1792         }
1793
1794         if (qlcnic_83xx_check(adapter)) {
1795                 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1796                         tx_ring = &adapter->tx_ring[ring];
1797                         tx_ring->adapter = adapter;
1798                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
1799                                 index = adapter->max_sds_rings + ring;
1800                                 vector = adapter->msix_entries[index].vector;
1801                                 tx_ring->irq = vector;
1802                         }
1803                 }
1804         }
1805         return 0;
1806 }
1807
1808 static int
1809 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1810 {
1811         struct net_device *netdev = NULL;
1812         struct qlcnic_adapter *adapter = NULL;
1813         struct qlcnic_hardware_context *ahw;
1814         int err, pci_using_dac = -1;
1815         u32 capab2;
1816         char board_name[QLCNIC_MAX_BOARD_NAME_LEN];
1817
1818         err = pci_enable_device(pdev);
1819         if (err)
1820                 return err;
1821
1822         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1823                 err = -ENODEV;
1824                 goto err_out_disable_pdev;
1825         }
1826
1827         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
1828         if (err)
1829                 goto err_out_disable_pdev;
1830
1831         err = pci_request_regions(pdev, qlcnic_driver_name);
1832         if (err)
1833                 goto err_out_disable_pdev;
1834
1835         pci_set_master(pdev);
1836         pci_enable_pcie_error_reporting(pdev);
1837
1838         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
1839         if (!ahw)
1840                 goto err_out_free_res;
1841
1842         if (ent->device == PCI_DEVICE_ID_QLOGIC_QLE824X) {
1843                 ahw->hw_ops = &qlcnic_hw_ops;
1844                 ahw->reg_tbl = (u32 *)qlcnic_reg_tbl;
1845         } else if (ent->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1846                 qlcnic_83xx_register_map(ahw);
1847         } else {
1848                 goto err_out_free_hw_res;
1849         }
1850
1851         err = qlcnic_setup_pci_map(pdev, ahw);
1852         if (err)
1853                 goto err_out_free_hw_res;
1854
1855         netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1856         if (!netdev) {
1857                 err = -ENOMEM;
1858                 goto err_out_iounmap;
1859         }
1860
1861         SET_NETDEV_DEV(netdev, &pdev->dev);
1862
1863         adapter = netdev_priv(netdev);
1864         adapter->netdev  = netdev;
1865         adapter->pdev    = pdev;
1866         adapter->ahw = ahw;
1867
1868         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
1869         if (adapter->qlcnic_wq == NULL) {
1870                 dev_err(&pdev->dev, "Failed to create workqueue\n");
1871                 goto err_out_free_netdev;
1872         }
1873
1874         err = qlcnic_alloc_adapter_resources(adapter);
1875         if (err)
1876                 goto err_out_free_netdev;
1877
1878         adapter->dev_rst_time = jiffies;
1879         adapter->ahw->revision_id = pdev->revision;
1880         if (qlcnic_mac_learn == FDB_MAC_LEARN)
1881                 adapter->fdb_mac_learn = true;
1882         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
1883                 adapter->drv_mac_learn = true;
1884         adapter->max_drv_tx_rings = 1;
1885
1886         rwlock_init(&adapter->ahw->crb_lock);
1887         mutex_init(&adapter->ahw->mem_lock);
1888
1889         spin_lock_init(&adapter->tx_clean_lock);
1890         INIT_LIST_HEAD(&adapter->mac_list);
1891
1892         if (qlcnic_82xx_check(adapter)) {
1893                 qlcnic_check_vf(adapter, ent);
1894                 adapter->portnum = adapter->ahw->pci_func;
1895                 err = qlcnic_start_firmware(adapter);
1896                 if (err) {
1897                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
1898                         goto err_out_free_hw;
1899                 }
1900
1901                 err = qlcnic_setup_idc_param(adapter);
1902                 if (err)
1903                         goto err_out_free_hw;
1904
1905                 adapter->flags |= QLCNIC_NEED_FLR;
1906         } else if (qlcnic_83xx_check(adapter)) {
1907                 qlcnic_83xx_check_vf(adapter, ent);
1908                 adapter->portnum = adapter->ahw->pci_func;
1909                 err = qlcnic_83xx_init(adapter);
1910                 if (err) {
1911                         dev_err(&pdev->dev, "%s: failed\n", __func__);
1912                         goto err_out_free_hw;
1913                 }
1914         } else {
1915                 dev_err(&pdev->dev,
1916                         "%s: failed. Please Reboot\n", __func__);
1917                 goto err_out_free_hw;
1918         }
1919
1920         if (qlcnic_read_mac_addr(adapter))
1921                 dev_warn(&pdev->dev, "failed to read mac addr\n");
1922
1923         if (adapter->portnum == 0) {
1924                 qlcnic_get_board_name(adapter, board_name);
1925
1926                 pr_info("%s: %s Board Chip rev 0x%x\n",
1927                         module_name(THIS_MODULE),
1928                         board_name, adapter->ahw->revision_id);
1929         }
1930         err = qlcnic_setup_intr(adapter, 0);
1931         if (err) {
1932                 dev_err(&pdev->dev, "Failed to setup interrupt\n");
1933                 goto err_out_disable_msi;
1934         }
1935
1936         if (qlcnic_83xx_check(adapter)) {
1937                 err = qlcnic_83xx_setup_mbx_intr(adapter);
1938                 if (err)
1939                         goto err_out_disable_msi;
1940         }
1941
1942         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
1943         if (err)
1944                 goto err_out_disable_mbx_intr;
1945
1946         if (qlcnic_82xx_check(adapter)) {
1947                 if (ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1948                         capab2 = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
1949                         if (capab2 & QLCNIC_FW_CAPABILITY_2_OCBB)
1950                                 qlcnic_fw_cmd_set_drv_version(adapter);
1951                 }
1952         }
1953
1954         pci_set_drvdata(pdev, adapter);
1955
1956         if (qlcnic_82xx_check(adapter))
1957                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
1958                                      FW_POLL_DELAY);
1959
1960         switch (adapter->ahw->port_type) {
1961         case QLCNIC_GBE:
1962                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1963                                 adapter->netdev->name);
1964                 break;
1965         case QLCNIC_XGBE:
1966                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1967                                 adapter->netdev->name);
1968                 break;
1969         }
1970
1971         if (qlcnic_get_act_pci_func(adapter))
1972                 goto err_out_disable_mbx_intr;
1973
1974         if (adapter->drv_mac_learn)
1975                 qlcnic_alloc_lb_filters_mem(adapter);
1976
1977         qlcnic_add_sysfs(adapter);
1978
1979         return 0;
1980
1981 err_out_disable_mbx_intr:
1982         if (qlcnic_83xx_check(adapter)) {
1983                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1984                         qlcnic_83xx_config_intrpt(adapter, 0);
1985                 qlcnic_83xx_free_mbx_intr(adapter);
1986         }
1987
1988 err_out_disable_msi:
1989         qlcnic_teardown_intr(adapter);
1990         qlcnic_cancel_idc_work(adapter);
1991         qlcnic_clr_all_drv_state(adapter, 0);
1992
1993 err_out_free_hw:
1994         qlcnic_free_adapter_resources(adapter);
1995
1996 err_out_free_netdev:
1997         free_netdev(netdev);
1998
1999 err_out_iounmap:
2000         qlcnic_cleanup_pci_map(adapter);
2001
2002 err_out_free_hw_res:
2003         kfree(ahw);
2004
2005 err_out_free_res:
2006         pci_release_regions(pdev);
2007
2008 err_out_disable_pdev:
2009         pci_set_drvdata(pdev, NULL);
2010         pci_disable_device(pdev);
2011         return err;
2012 }
2013
2014 static void qlcnic_remove(struct pci_dev *pdev)
2015 {
2016         struct qlcnic_adapter *adapter;
2017         struct net_device *netdev;
2018         struct qlcnic_hardware_context *ahw;
2019
2020         adapter = pci_get_drvdata(pdev);
2021         if (adapter == NULL)
2022                 return;
2023
2024         netdev = adapter->netdev;
2025
2026         qlcnic_cancel_idc_work(adapter);
2027         ahw = adapter->ahw;
2028
2029         unregister_netdev(netdev);
2030
2031         if (qlcnic_83xx_check(adapter)) {
2032                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
2033                         qlcnic_83xx_config_intrpt(adapter, 0);
2034                 qlcnic_83xx_free_mbx_intr(adapter);
2035         }
2036
2037         qlcnic_detach(adapter);
2038
2039         if (adapter->npars != NULL)
2040                 kfree(adapter->npars);
2041         if (adapter->eswitch != NULL)
2042                 kfree(adapter->eswitch);
2043
2044         if (qlcnic_82xx_check(adapter))
2045                 qlcnic_clr_all_drv_state(adapter, 0);
2046
2047         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2048
2049         qlcnic_free_lb_filters_mem(adapter);
2050
2051         qlcnic_teardown_intr(adapter);
2052
2053         qlcnic_remove_sysfs(adapter);
2054
2055         qlcnic_cleanup_pci_map(adapter);
2056
2057         qlcnic_release_firmware(adapter);
2058
2059         pci_disable_pcie_error_reporting(pdev);
2060         pci_release_regions(pdev);
2061         pci_disable_device(pdev);
2062         pci_set_drvdata(pdev, NULL);
2063
2064         if (adapter->qlcnic_wq) {
2065                 destroy_workqueue(adapter->qlcnic_wq);
2066                 adapter->qlcnic_wq = NULL;
2067         }
2068         qlcnic_free_adapter_resources(adapter);
2069         kfree(ahw);
2070         free_netdev(netdev);
2071 }
2072 static int __qlcnic_shutdown(struct pci_dev *pdev)
2073 {
2074         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2075         struct net_device *netdev = adapter->netdev;
2076         int retval;
2077
2078         netif_device_detach(netdev);
2079
2080         qlcnic_cancel_idc_work(adapter);
2081
2082         if (netif_running(netdev))
2083                 qlcnic_down(adapter, netdev);
2084
2085         if (qlcnic_82xx_check(adapter))
2086                 qlcnic_clr_all_drv_state(adapter, 0);
2087
2088         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2089
2090         retval = pci_save_state(pdev);
2091         if (retval)
2092                 return retval;
2093         if (qlcnic_82xx_check(adapter)) {
2094                 if (qlcnic_wol_supported(adapter)) {
2095                         pci_enable_wake(pdev, PCI_D3cold, 1);
2096                         pci_enable_wake(pdev, PCI_D3hot, 1);
2097                 }
2098         }
2099
2100         return 0;
2101 }
2102
2103 static void qlcnic_shutdown(struct pci_dev *pdev)
2104 {
2105         if (__qlcnic_shutdown(pdev))
2106                 return;
2107
2108         pci_disable_device(pdev);
2109 }
2110
2111 #ifdef CONFIG_PM
2112 static int
2113 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2114 {
2115         int retval;
2116
2117         retval = __qlcnic_shutdown(pdev);
2118         if (retval)
2119                 return retval;
2120
2121         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2122         return 0;
2123 }
2124
2125 static int
2126 qlcnic_resume(struct pci_dev *pdev)
2127 {
2128         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2129         struct net_device *netdev = adapter->netdev;
2130         int err;
2131
2132         err = pci_enable_device(pdev);
2133         if (err)
2134                 return err;
2135
2136         pci_set_power_state(pdev, PCI_D0);
2137         pci_set_master(pdev);
2138         pci_restore_state(pdev);
2139
2140         err = qlcnic_start_firmware(adapter);
2141         if (err) {
2142                 dev_err(&pdev->dev, "failed to start firmware\n");
2143                 return err;
2144         }
2145
2146         if (netif_running(netdev)) {
2147                 err = qlcnic_up(adapter, netdev);
2148                 if (err)
2149                         goto done;
2150
2151                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2152         }
2153 done:
2154         netif_device_attach(netdev);
2155         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
2156         return 0;
2157 }
2158 #endif
2159
2160 static int qlcnic_open(struct net_device *netdev)
2161 {
2162         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2163         int err;
2164
2165         netif_carrier_off(netdev);
2166
2167         err = qlcnic_attach(adapter);
2168         if (err)
2169                 return err;
2170
2171         err = __qlcnic_up(adapter, netdev);
2172         if (err)
2173                 goto err_out;
2174
2175         netif_start_queue(netdev);
2176
2177         return 0;
2178
2179 err_out:
2180         qlcnic_detach(adapter);
2181         return err;
2182 }
2183
2184 /*
2185  * qlcnic_close - Disables a network interface entry point
2186  */
2187 static int qlcnic_close(struct net_device *netdev)
2188 {
2189         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2190
2191         __qlcnic_down(adapter, netdev);
2192         if (qlcnic_83xx_check(adapter)) {
2193                 qlcnic_83xx_register_nic_idc_func(adapter, 0);
2194                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2195         }
2196
2197         return 0;
2198 }
2199
2200 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2201 {
2202         void *head;
2203         int i;
2204         struct net_device *netdev = adapter->netdev;
2205         u32 filter_size = 0;
2206         u16 act_pci_func = 0;
2207
2208         if (adapter->fhash.fmax && adapter->fhash.fhead)
2209                 return;
2210
2211         act_pci_func = adapter->ahw->act_pci_func;
2212         spin_lock_init(&adapter->mac_learn_lock);
2213
2214         if (qlcnic_82xx_check(adapter)) {
2215                 filter_size = QLCNIC_LB_MAX_FILTERS;
2216                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2217         } else {
2218                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2219                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2220         }
2221
2222         head = kcalloc(adapter->fhash.fbucket_size,
2223                        sizeof(struct hlist_head), GFP_ATOMIC);
2224
2225         if (!head)
2226                 return;
2227
2228         adapter->fhash.fmax = (filter_size / act_pci_func);
2229         adapter->fhash.fhead = head;
2230
2231         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2232                     act_pci_func, adapter->fhash.fmax);
2233
2234         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2235                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2236 }
2237
2238 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2239 {
2240         if (adapter->fhash.fmax && adapter->fhash.fhead)
2241                 kfree(adapter->fhash.fhead);
2242
2243         adapter->fhash.fhead = NULL;
2244         adapter->fhash.fmax = 0;
2245 }
2246
2247 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2248 {
2249         struct net_device *netdev = adapter->netdev;
2250         u32 temp_state, temp_val, temp = 0;
2251         int rv = 0;
2252
2253         if (qlcnic_83xx_check(adapter))
2254                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2255
2256         if (qlcnic_82xx_check(adapter))
2257                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2258
2259         temp_state = qlcnic_get_temp_state(temp);
2260         temp_val = qlcnic_get_temp_val(temp);
2261
2262         if (temp_state == QLCNIC_TEMP_PANIC) {
2263                 dev_err(&netdev->dev,
2264                        "Device temperature %d degrees C exceeds"
2265                        " maximum allowed. Hardware has been shut down.\n",
2266                        temp_val);
2267                 rv = 1;
2268         } else if (temp_state == QLCNIC_TEMP_WARN) {
2269                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2270                         dev_err(&netdev->dev,
2271                                "Device temperature %d degrees C "
2272                                "exceeds operating range."
2273                                " Immediate action needed.\n",
2274                                temp_val);
2275                 }
2276         } else {
2277                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2278                         dev_info(&netdev->dev,
2279                                "Device temperature is now %d degrees C"
2280                                " in normal range.\n", temp_val);
2281                 }
2282         }
2283         adapter->ahw->temp = temp_state;
2284         return rv;
2285 }
2286
2287 static void qlcnic_tx_timeout(struct net_device *netdev)
2288 {
2289         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2290
2291         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2292                 return;
2293
2294         dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2295
2296         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
2297                 adapter->need_fw_reset = 1;
2298         else
2299                 adapter->ahw->reset_context = 1;
2300 }
2301
2302 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2303 {
2304         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2305         struct net_device_stats *stats = &netdev->stats;
2306
2307         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2308         stats->tx_packets = adapter->stats.xmitfinished;
2309         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2310         stats->tx_bytes = adapter->stats.txbytes;
2311         stats->rx_dropped = adapter->stats.rxdropped;
2312         stats->tx_dropped = adapter->stats.txdropped;
2313
2314         return stats;
2315 }
2316
2317 irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
2318 {
2319         u32 status;
2320
2321         status = readl(adapter->isr_int_vec);
2322
2323         if (!(status & adapter->ahw->int_vec_bit))
2324                 return IRQ_NONE;
2325
2326         /* check interrupt state machine, to be sure */
2327         status = readl(adapter->crb_int_state_reg);
2328         if (!ISR_LEGACY_INT_TRIGGERED(status))
2329                 return IRQ_NONE;
2330
2331         writel(0xffffffff, adapter->tgt_status_reg);
2332         /* read twice to ensure write is flushed */
2333         readl(adapter->isr_int_vec);
2334         readl(adapter->isr_int_vec);
2335
2336         return IRQ_HANDLED;
2337 }
2338
2339 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2340 {
2341         struct qlcnic_host_sds_ring *sds_ring = data;
2342         struct qlcnic_adapter *adapter = sds_ring->adapter;
2343
2344         if (adapter->flags & QLCNIC_MSIX_ENABLED)
2345                 goto done;
2346         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2347                 writel(0xffffffff, adapter->tgt_status_reg);
2348                 goto done;
2349         }
2350
2351         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2352                 return IRQ_NONE;
2353
2354 done:
2355         adapter->ahw->diag_cnt++;
2356         qlcnic_enable_int(sds_ring);
2357         return IRQ_HANDLED;
2358 }
2359
2360 static irqreturn_t qlcnic_intr(int irq, void *data)
2361 {
2362         struct qlcnic_host_sds_ring *sds_ring = data;
2363         struct qlcnic_adapter *adapter = sds_ring->adapter;
2364
2365         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2366                 return IRQ_NONE;
2367
2368         napi_schedule(&sds_ring->napi);
2369
2370         return IRQ_HANDLED;
2371 }
2372
2373 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2374 {
2375         struct qlcnic_host_sds_ring *sds_ring = data;
2376         struct qlcnic_adapter *adapter = sds_ring->adapter;
2377
2378         /* clear interrupt */
2379         writel(0xffffffff, adapter->tgt_status_reg);
2380
2381         napi_schedule(&sds_ring->napi);
2382         return IRQ_HANDLED;
2383 }
2384
2385 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2386 {
2387         struct qlcnic_host_sds_ring *sds_ring = data;
2388
2389         napi_schedule(&sds_ring->napi);
2390         return IRQ_HANDLED;
2391 }
2392
2393 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
2394 {
2395         struct qlcnic_host_tx_ring *tx_ring = data;
2396
2397         napi_schedule(&tx_ring->napi);
2398         return IRQ_HANDLED;
2399 }
2400
2401 #ifdef CONFIG_NET_POLL_CONTROLLER
2402 static void qlcnic_poll_controller(struct net_device *netdev)
2403 {
2404         int ring;
2405         struct qlcnic_host_sds_ring *sds_ring;
2406         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2407         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2408
2409         disable_irq(adapter->irq);
2410         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2411                 sds_ring = &recv_ctx->sds_rings[ring];
2412                 qlcnic_intr(adapter->irq, sds_ring);
2413         }
2414         enable_irq(adapter->irq);
2415 }
2416 #endif
2417
2418 static void
2419 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2420 {
2421         u32 val;
2422
2423         val = adapter->portnum & 0xf;
2424         val |= encoding << 7;
2425         val |= (jiffies - adapter->dev_rst_time) << 8;
2426
2427         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2428         adapter->dev_rst_time = jiffies;
2429 }
2430
2431 static int
2432 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2433 {
2434         u32  val;
2435
2436         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2437                         state != QLCNIC_DEV_NEED_QUISCENT);
2438
2439         if (qlcnic_api_lock(adapter))
2440                 return -EIO;
2441
2442         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2443
2444         if (state == QLCNIC_DEV_NEED_RESET)
2445                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2446         else if (state == QLCNIC_DEV_NEED_QUISCENT)
2447                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2448
2449         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2450
2451         qlcnic_api_unlock(adapter);
2452
2453         return 0;
2454 }
2455
2456 static int
2457 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2458 {
2459         u32  val;
2460
2461         if (qlcnic_api_lock(adapter))
2462                 return -EBUSY;
2463
2464         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2465         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2466         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2467
2468         qlcnic_api_unlock(adapter);
2469
2470         return 0;
2471 }
2472
2473 static void
2474 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2475 {
2476         u32  val;
2477
2478         if (qlcnic_api_lock(adapter))
2479                 goto err;
2480
2481         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2482         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2483         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2484
2485         if (failed) {
2486                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2487                                     QLCNIC_DEV_FAILED);
2488                 dev_info(&adapter->pdev->dev,
2489                                 "Device state set to Failed. Please Reboot\n");
2490         } else if (!(val & 0x11111111))
2491                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2492                                     QLCNIC_DEV_COLD);
2493
2494         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2495         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2496         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2497
2498         qlcnic_api_unlock(adapter);
2499 err:
2500         adapter->fw_fail_cnt = 0;
2501         adapter->flags &= ~QLCNIC_FW_HANG;
2502         clear_bit(__QLCNIC_START_FW, &adapter->state);
2503         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2504 }
2505
2506 /* Grab api lock, before checking state */
2507 static int
2508 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2509 {
2510         int act, state, active_mask;
2511         struct qlcnic_hardware_context *ahw = adapter->ahw;
2512
2513         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2514         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2515
2516         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
2517                 active_mask = (~(1 << (ahw->pci_func * 4)));
2518                 act = act & active_mask;
2519         }
2520
2521         if (((state & 0x11111111) == (act & 0x11111111)) ||
2522                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2523                 return 0;
2524         else
2525                 return 1;
2526 }
2527
2528 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2529 {
2530         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2531
2532         if (val != QLCNIC_DRV_IDC_VER) {
2533                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2534                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2535         }
2536
2537         return 0;
2538 }
2539
2540 static int
2541 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2542 {
2543         u32 val, prev_state;
2544         u8 dev_init_timeo = adapter->dev_init_timeo;
2545         u8 portnum = adapter->portnum;
2546         u8 ret;
2547
2548         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2549                 return 1;
2550
2551         if (qlcnic_api_lock(adapter))
2552                 return -1;
2553
2554         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2555         if (!(val & (1 << (portnum * 4)))) {
2556                 QLC_DEV_SET_REF_CNT(val, portnum);
2557                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2558         }
2559
2560         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2561         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2562
2563         switch (prev_state) {
2564         case QLCNIC_DEV_COLD:
2565                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2566                                     QLCNIC_DEV_INITIALIZING);
2567                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
2568                                     QLCNIC_DRV_IDC_VER);
2569                 qlcnic_idc_debug_info(adapter, 0);
2570                 qlcnic_api_unlock(adapter);
2571                 return 1;
2572
2573         case QLCNIC_DEV_READY:
2574                 ret = qlcnic_check_idc_ver(adapter);
2575                 qlcnic_api_unlock(adapter);
2576                 return ret;
2577
2578         case QLCNIC_DEV_NEED_RESET:
2579                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2580                 QLC_DEV_SET_RST_RDY(val, portnum);
2581                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2582                 break;
2583
2584         case QLCNIC_DEV_NEED_QUISCENT:
2585                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2586                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
2587                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2588                 break;
2589
2590         case QLCNIC_DEV_FAILED:
2591                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
2592                 qlcnic_api_unlock(adapter);
2593                 return -1;
2594
2595         case QLCNIC_DEV_INITIALIZING:
2596         case QLCNIC_DEV_QUISCENT:
2597                 break;
2598         }
2599
2600         qlcnic_api_unlock(adapter);
2601
2602         do {
2603                 msleep(1000);
2604                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2605
2606                 if (prev_state == QLCNIC_DEV_QUISCENT)
2607                         continue;
2608         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
2609
2610         if (!dev_init_timeo) {
2611                 dev_err(&adapter->pdev->dev,
2612                         "Waiting for device to initialize timeout\n");
2613                 return -1;
2614         }
2615
2616         if (qlcnic_api_lock(adapter))
2617                 return -1;
2618
2619         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2620         QLC_DEV_CLR_RST_QSCNT(val, portnum);
2621         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2622
2623         ret = qlcnic_check_idc_ver(adapter);
2624         qlcnic_api_unlock(adapter);
2625
2626         return ret;
2627 }
2628
2629 static void
2630 qlcnic_fwinit_work(struct work_struct *work)
2631 {
2632         struct qlcnic_adapter *adapter = container_of(work,
2633                         struct qlcnic_adapter, fw_work.work);
2634         u32 dev_state = 0xf;
2635         u32 val;
2636
2637         if (qlcnic_api_lock(adapter))
2638                 goto err_ret;
2639
2640         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2641         if (dev_state == QLCNIC_DEV_QUISCENT ||
2642             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2643                 qlcnic_api_unlock(adapter);
2644                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2645                                                 FW_POLL_DELAY * 2);
2646                 return;
2647         }
2648
2649         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
2650                 qlcnic_api_unlock(adapter);
2651                 goto wait_npar;
2652         }
2653
2654         if (dev_state == QLCNIC_DEV_INITIALIZING ||
2655             dev_state == QLCNIC_DEV_READY) {
2656                 dev_info(&adapter->pdev->dev, "Detected state change from "
2657                                 "DEV_NEED_RESET, skipping ack check\n");
2658                 goto skip_ack_check;
2659         }
2660
2661         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2662                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2663                                         adapter->reset_ack_timeo);
2664                 goto skip_ack_check;
2665         }
2666
2667         if (!qlcnic_check_drv_state(adapter)) {
2668 skip_ack_check:
2669                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2670
2671                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2672                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2673                                             QLCNIC_DEV_INITIALIZING);
2674                         set_bit(__QLCNIC_START_FW, &adapter->state);
2675                         QLCDB(adapter, DRV, "Restarting fw\n");
2676                         qlcnic_idc_debug_info(adapter, 0);
2677                         val = QLC_SHARED_REG_RD32(adapter,
2678                                                   QLCNIC_CRB_DRV_STATE);
2679                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2680                         QLC_SHARED_REG_WR32(adapter,
2681                                             QLCNIC_CRB_DRV_STATE, val);
2682                 }
2683
2684                 qlcnic_api_unlock(adapter);
2685
2686                 rtnl_lock();
2687                 if (adapter->ahw->fw_dump.enable &&
2688                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2689                         QLCDB(adapter, DRV, "Take FW dump\n");
2690                         qlcnic_dump_fw(adapter);
2691                         adapter->flags |= QLCNIC_FW_HANG;
2692                 }
2693                 rtnl_unlock();
2694
2695                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
2696                 if (!adapter->nic_ops->start_firmware(adapter)) {
2697                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2698                         adapter->fw_wait_cnt = 0;
2699                         return;
2700                 }
2701                 goto err_ret;
2702         }
2703
2704         qlcnic_api_unlock(adapter);
2705
2706 wait_npar:
2707         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2708         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
2709
2710         switch (dev_state) {
2711         case QLCNIC_DEV_READY:
2712                 if (!qlcnic_start_firmware(adapter)) {
2713                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2714                         adapter->fw_wait_cnt = 0;
2715                         return;
2716                 }
2717         case QLCNIC_DEV_FAILED:
2718                 break;
2719         default:
2720                 qlcnic_schedule_work(adapter,
2721                         qlcnic_fwinit_work, FW_POLL_DELAY);
2722                 return;
2723         }
2724
2725 err_ret:
2726         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2727                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
2728         netif_device_attach(adapter->netdev);
2729         qlcnic_clr_all_drv_state(adapter, 0);
2730 }
2731
2732 static void
2733 qlcnic_detach_work(struct work_struct *work)
2734 {
2735         struct qlcnic_adapter *adapter = container_of(work,
2736                         struct qlcnic_adapter, fw_work.work);
2737         struct net_device *netdev = adapter->netdev;
2738         u32 status;
2739
2740         netif_device_detach(netdev);
2741
2742         /* Dont grab rtnl lock during Quiscent mode */
2743         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2744                 if (netif_running(netdev))
2745                         __qlcnic_down(adapter, netdev);
2746         } else
2747                 qlcnic_down(adapter, netdev);
2748
2749         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2750
2751         if (status & QLCNIC_RCODE_FATAL_ERROR) {
2752                 dev_err(&adapter->pdev->dev,
2753                         "Detaching the device: peg halt status1=0x%x\n",
2754                                         status);
2755
2756                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
2757                         dev_err(&adapter->pdev->dev,
2758                         "On board active cooling fan failed. "
2759                                 "Device has been halted.\n");
2760                         dev_err(&adapter->pdev->dev,
2761                                 "Replace the adapter.\n");
2762                 }
2763
2764                 goto err_ret;
2765         }
2766
2767         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
2768                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
2769                         adapter->ahw->temp);
2770                 goto err_ret;
2771         }
2772
2773         /* Dont ack if this instance is the reset owner */
2774         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2775                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
2776                         dev_err(&adapter->pdev->dev,
2777                                 "Failed to set driver state,"
2778                                         "detaching the device.\n");
2779                         goto err_ret;
2780                 }
2781         }
2782
2783         adapter->fw_wait_cnt = 0;
2784
2785         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2786
2787         return;
2788
2789 err_ret:
2790         netif_device_attach(netdev);
2791         qlcnic_clr_all_drv_state(adapter, 1);
2792 }
2793
2794 /*Transit NPAR state to NON Operational */
2795 static void
2796 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
2797 {
2798         u32 state;
2799
2800         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2801         if (state == QLCNIC_DEV_NPAR_NON_OPER)
2802                 return;
2803
2804         if (qlcnic_api_lock(adapter))
2805                 return;
2806         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2807                             QLCNIC_DEV_NPAR_NON_OPER);
2808         qlcnic_api_unlock(adapter);
2809 }
2810
2811 void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter, u32 key)
2812 {
2813         u32 state, xg_val = 0, gb_val = 0;
2814
2815         qlcnic_xg_set_xg0_mask(xg_val);
2816         qlcnic_xg_set_xg1_mask(xg_val);
2817         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
2818         qlcnic_gb_set_gb0_mask(gb_val);
2819         qlcnic_gb_set_gb1_mask(gb_val);
2820         qlcnic_gb_set_gb2_mask(gb_val);
2821         qlcnic_gb_set_gb3_mask(gb_val);
2822         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
2823         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
2824                                 " on all ports\n");
2825         adapter->need_fw_reset = 1;
2826
2827         if (qlcnic_api_lock(adapter))
2828                 return;
2829
2830         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2831
2832         if (state == QLCNIC_DEV_READY) {
2833                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2834                                     QLCNIC_DEV_NEED_RESET);
2835                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
2836                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
2837                 qlcnic_idc_debug_info(adapter, 0);
2838         }
2839
2840         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2841                             QLCNIC_DEV_NPAR_NON_OPER);
2842         qlcnic_api_unlock(adapter);
2843 }
2844
2845 /* Transit to NPAR READY state from NPAR NOT READY state */
2846 static void
2847 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
2848 {
2849         if (qlcnic_api_lock(adapter))
2850                 return;
2851
2852         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2853                             QLCNIC_DEV_NPAR_OPER);
2854         QLCDB(adapter, DRV, "NPAR operational state set\n");
2855
2856         qlcnic_api_unlock(adapter);
2857 }
2858
2859 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2860                           work_func_t func, int delay)
2861 {
2862         if (test_bit(__QLCNIC_AER, &adapter->state))
2863                 return;
2864
2865         INIT_DELAYED_WORK(&adapter->fw_work, func);
2866         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
2867                            round_jiffies_relative(delay));
2868 }
2869
2870 static void
2871 qlcnic_attach_work(struct work_struct *work)
2872 {
2873         struct qlcnic_adapter *adapter = container_of(work,
2874                                 struct qlcnic_adapter, fw_work.work);
2875         struct net_device *netdev = adapter->netdev;
2876         u32 npar_state;
2877
2878         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
2879                 npar_state = QLC_SHARED_REG_RD32(adapter,
2880                                                  QLCNIC_CRB_DEV_NPAR_STATE);
2881                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
2882                         qlcnic_clr_all_drv_state(adapter, 0);
2883                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
2884                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
2885                                                         FW_POLL_DELAY);
2886                 else
2887                         goto attach;
2888                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
2889                 return;
2890         }
2891 attach:
2892         if (netif_running(netdev)) {
2893                 if (qlcnic_up(adapter, netdev))
2894                         goto done;
2895
2896                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2897         }
2898
2899 done:
2900         netif_device_attach(netdev);
2901         adapter->fw_fail_cnt = 0;
2902         adapter->flags &= ~QLCNIC_FW_HANG;
2903         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2904
2905         if (!qlcnic_clr_drv_state(adapter))
2906                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2907                                                         FW_POLL_DELAY);
2908 }
2909
2910 static int
2911 qlcnic_check_health(struct qlcnic_adapter *adapter)
2912 {
2913         u32 state = 0, heartbeat;
2914         u32 peg_status;
2915
2916         if (qlcnic_check_temp(adapter))
2917                 goto detach;
2918
2919         if (adapter->need_fw_reset)
2920                 qlcnic_dev_request_reset(adapter, 0);
2921
2922         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2923         if (state == QLCNIC_DEV_NEED_RESET) {
2924                 qlcnic_set_npar_non_operational(adapter);
2925                 adapter->need_fw_reset = 1;
2926         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
2927                 goto detach;
2928
2929         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
2930         if (heartbeat != adapter->heartbeat) {
2931                 adapter->heartbeat = heartbeat;
2932                 adapter->fw_fail_cnt = 0;
2933                 if (adapter->need_fw_reset)
2934                         goto detach;
2935
2936                 if (adapter->ahw->reset_context && qlcnic_auto_fw_reset) {
2937                         qlcnic_reset_hw_context(adapter);
2938                         adapter->netdev->trans_start = jiffies;
2939                 }
2940
2941                 return 0;
2942         }
2943
2944         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2945                 return 0;
2946
2947         adapter->flags |= QLCNIC_FW_HANG;
2948
2949         qlcnic_dev_request_reset(adapter, 0);
2950
2951         if (qlcnic_auto_fw_reset)
2952                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
2953
2954         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
2955         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2956         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
2957                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
2958                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
2959                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
2960                         "PEG_NET_4_PC: 0x%x\n",
2961                         peg_status,
2962                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
2963                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c),
2964                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c),
2965                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c),
2966                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c),
2967                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c));
2968         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
2969                 dev_err(&adapter->pdev->dev,
2970                         "Firmware aborted with error code 0x00006700. "
2971                                 "Device is being reset.\n");
2972 detach:
2973         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
2974                 QLCNIC_DEV_NEED_RESET;
2975
2976         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
2977                                                       &adapter->state)) {
2978
2979                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
2980                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
2981         }
2982
2983         return 1;
2984 }
2985
2986 static void
2987 qlcnic_fw_poll_work(struct work_struct *work)
2988 {
2989         struct qlcnic_adapter *adapter = container_of(work,
2990                                 struct qlcnic_adapter, fw_work.work);
2991
2992         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2993                 goto reschedule;
2994
2995
2996         if (qlcnic_check_health(adapter))
2997                 return;
2998
2999         if (adapter->fhash.fnum)
3000                 qlcnic_prune_lb_filters(adapter);
3001
3002 reschedule:
3003         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3004 }
3005
3006 static int qlcnic_is_first_func(struct pci_dev *pdev)
3007 {
3008         struct pci_dev *oth_pdev;
3009         int val = pdev->devfn;
3010
3011         while (val-- > 0) {
3012                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3013                         (pdev->bus), pdev->bus->number,
3014                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3015                 if (!oth_pdev)
3016                         continue;
3017
3018                 if (oth_pdev->current_state != PCI_D3cold) {
3019                         pci_dev_put(oth_pdev);
3020                         return 0;
3021                 }
3022                 pci_dev_put(oth_pdev);
3023         }
3024         return 1;
3025 }
3026
3027 static int qlcnic_attach_func(struct pci_dev *pdev)
3028 {
3029         int err, first_func;
3030         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3031         struct net_device *netdev = adapter->netdev;
3032
3033         pdev->error_state = pci_channel_io_normal;
3034
3035         err = pci_enable_device(pdev);
3036         if (err)
3037                 return err;
3038
3039         pci_set_power_state(pdev, PCI_D0);
3040         pci_set_master(pdev);
3041         pci_restore_state(pdev);
3042
3043         first_func = qlcnic_is_first_func(pdev);
3044
3045         if (qlcnic_api_lock(adapter))
3046                 return -EINVAL;
3047
3048         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3049                 adapter->need_fw_reset = 1;
3050                 set_bit(__QLCNIC_START_FW, &adapter->state);
3051                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3052                                     QLCNIC_DEV_INITIALIZING);
3053                 QLCDB(adapter, DRV, "Restarting fw\n");
3054         }
3055         qlcnic_api_unlock(adapter);
3056
3057         err = qlcnic_start_firmware(adapter);
3058         if (err)
3059                 return err;
3060
3061         qlcnic_clr_drv_state(adapter);
3062         kfree(adapter->msix_entries);
3063         adapter->msix_entries = NULL;
3064         err = qlcnic_setup_intr(adapter, 0);
3065
3066         if (err) {
3067                 kfree(adapter->msix_entries);
3068                 netdev_err(netdev, "failed to setup interrupt\n");
3069                 return err;
3070         }
3071
3072         if (qlcnic_83xx_check(adapter)) {
3073                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3074                 if (err) {
3075                         dev_err(&adapter->pdev->dev,
3076                                 "failed to setup mbx interrupt\n");
3077                         qlcnic_clr_all_drv_state(adapter, 1);
3078                         clear_bit(__QLCNIC_AER, &adapter->state);
3079                         goto done;
3080                 }
3081         }
3082
3083         if (netif_running(netdev)) {
3084                 err = qlcnic_attach(adapter);
3085                 if (err) {
3086                         qlcnic_clr_all_drv_state(adapter, 1);
3087                         clear_bit(__QLCNIC_AER, &adapter->state);
3088                         netif_device_attach(netdev);
3089                         return err;
3090                 }
3091
3092                 err = qlcnic_up(adapter, netdev);
3093                 if (err)
3094                         goto done;
3095
3096                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3097         }
3098  done:
3099         netif_device_attach(netdev);
3100         return err;
3101 }
3102
3103 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3104                                                 pci_channel_state_t state)
3105 {
3106         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3107         struct net_device *netdev = adapter->netdev;
3108
3109         if (state == pci_channel_io_perm_failure)
3110                 return PCI_ERS_RESULT_DISCONNECT;
3111
3112         if (state == pci_channel_io_normal)
3113                 return PCI_ERS_RESULT_RECOVERED;
3114
3115         set_bit(__QLCNIC_AER, &adapter->state);
3116         netif_device_detach(netdev);
3117
3118         cancel_delayed_work_sync(&adapter->fw_work);
3119
3120         if (netif_running(netdev))
3121                 qlcnic_down(adapter, netdev);
3122
3123         if (qlcnic_83xx_check(adapter)) {
3124                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
3125                         qlcnic_83xx_config_intrpt(adapter, 0);
3126                 qlcnic_83xx_free_mbx_intr(adapter);
3127         }
3128
3129         qlcnic_detach(adapter);
3130         qlcnic_teardown_intr(adapter);
3131
3132         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3133
3134         pci_save_state(pdev);
3135         pci_disable_device(pdev);
3136
3137         return PCI_ERS_RESULT_NEED_RESET;
3138 }
3139
3140 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3141 {
3142         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3143                                 PCI_ERS_RESULT_RECOVERED;
3144 }
3145
3146 static void qlcnic_io_resume(struct pci_dev *pdev)
3147 {
3148         u32 state;
3149         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3150
3151         pci_cleanup_aer_uncorrect_error_status(pdev);
3152         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3153         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3154                                                             &adapter->state))
3155                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3156                                                 FW_POLL_DELAY);
3157 }
3158
3159 static int
3160 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3161 {
3162         int err;
3163
3164         err = qlcnic_can_start_firmware(adapter);
3165         if (err)
3166                 return err;
3167
3168         err = qlcnic_check_npar_opertional(adapter);
3169         if (err)
3170                 return err;
3171
3172         err = qlcnic_initialize_nic(adapter);
3173         if (err)
3174                 return err;
3175
3176         qlcnic_check_options(adapter);
3177
3178         err = qlcnic_set_eswitch_port_config(adapter);
3179         if (err)
3180                 return err;
3181
3182         adapter->need_fw_reset = 0;
3183
3184         return err;
3185 }
3186
3187 int qlcnic_validate_max_rss(u8 max_hw, u8 val)
3188 {
3189         u32 max_allowed;
3190
3191         if (max_hw > QLC_MAX_SDS_RINGS) {
3192                 max_hw = QLC_MAX_SDS_RINGS;
3193                 pr_info("max rss reset to %d\n", QLC_MAX_SDS_RINGS);
3194         }
3195
3196         max_allowed = rounddown_pow_of_two(min_t(int, max_hw,
3197                                                  num_online_cpus()));
3198         if ((val > max_allowed) || (val < 2) || !is_power_of_2(val)) {
3199                 pr_info("rss_ring valid range [2 - %x] in powers of 2\n",
3200                         max_allowed);
3201                 return -EINVAL;
3202         }
3203         return 0;
3204 }
3205
3206 int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data, size_t len)
3207 {
3208         int err;
3209         struct net_device *netdev = adapter->netdev;
3210
3211         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3212                 return -EBUSY;
3213
3214         netif_device_detach(netdev);
3215         if (netif_running(netdev))
3216                 __qlcnic_down(adapter, netdev);
3217
3218         if (qlcnic_83xx_check(adapter)) {
3219                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
3220                         qlcnic_83xx_config_intrpt(adapter, 0);
3221                 qlcnic_83xx_free_mbx_intr(adapter);
3222         }
3223
3224         qlcnic_detach(adapter);
3225         qlcnic_teardown_intr(adapter);
3226         err = qlcnic_setup_intr(adapter, data);
3227         if (err) {
3228                 kfree(adapter->msix_entries);
3229                 netdev_err(netdev, "failed to setup interrupt\n");
3230                 return err;
3231         }
3232
3233         if (qlcnic_83xx_check(adapter)) {
3234                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3235                 if (err) {
3236                         dev_err(&adapter->pdev->dev,
3237                                 "failed to setup mbx interrupt\n");
3238                         goto done;
3239                 }
3240         }
3241
3242         if (netif_running(netdev)) {
3243                 err = qlcnic_attach(adapter);
3244                 if (err)
3245                         goto done;
3246                 err = __qlcnic_up(adapter, netdev);
3247                 if (err)
3248                         goto done;
3249                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3250         }
3251         err = len;
3252  done:
3253         netif_device_attach(netdev);
3254         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3255         return err;
3256 }
3257
3258 #ifdef CONFIG_INET
3259
3260 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
3261
3262 static void
3263 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
3264                         struct net_device *dev, unsigned long event)
3265 {
3266         struct in_device *indev;
3267
3268         indev = in_dev_get(dev);
3269         if (!indev)
3270                 return;
3271
3272         for_ifa(indev) {
3273                 switch (event) {
3274                 case NETDEV_UP:
3275                         qlcnic_config_ipaddr(adapter,
3276                                         ifa->ifa_address, QLCNIC_IP_UP);
3277                         break;
3278                 case NETDEV_DOWN:
3279                         qlcnic_config_ipaddr(adapter,
3280                                         ifa->ifa_address, QLCNIC_IP_DOWN);
3281                         break;
3282                 default:
3283                         break;
3284                 }
3285         } endfor_ifa(indev);
3286
3287         in_dev_put(indev);
3288 }
3289
3290 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
3291 {
3292         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3293         struct net_device *dev;
3294         u16 vid;
3295
3296         qlcnic_config_indev_addr(adapter, netdev, event);
3297
3298         rcu_read_lock();
3299         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
3300                 dev = __vlan_find_dev_deep(netdev, vid);
3301                 if (!dev)
3302                         continue;
3303                 qlcnic_config_indev_addr(adapter, dev, event);
3304         }
3305         rcu_read_unlock();
3306 }
3307
3308 static int qlcnic_netdev_event(struct notifier_block *this,
3309                                  unsigned long event, void *ptr)
3310 {
3311         struct qlcnic_adapter *adapter;
3312         struct net_device *dev = (struct net_device *)ptr;
3313
3314 recheck:
3315         if (dev == NULL)
3316                 goto done;
3317
3318         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3319                 dev = vlan_dev_real_dev(dev);
3320                 goto recheck;
3321         }
3322
3323         if (!is_qlcnic_netdev(dev))
3324                 goto done;
3325
3326         adapter = netdev_priv(dev);
3327
3328         if (!adapter)
3329                 goto done;
3330
3331         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3332                 goto done;
3333
3334         qlcnic_config_indev_addr(adapter, dev, event);
3335 done:
3336         return NOTIFY_DONE;
3337 }
3338
3339 static int
3340 qlcnic_inetaddr_event(struct notifier_block *this,
3341                 unsigned long event, void *ptr)
3342 {
3343         struct qlcnic_adapter *adapter;
3344         struct net_device *dev;
3345
3346         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3347
3348         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3349
3350 recheck:
3351         if (dev == NULL)
3352                 goto done;
3353
3354         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3355                 dev = vlan_dev_real_dev(dev);
3356                 goto recheck;
3357         }
3358
3359         if (!is_qlcnic_netdev(dev))
3360                 goto done;
3361
3362         adapter = netdev_priv(dev);
3363
3364         if (!adapter)
3365                 goto done;
3366
3367         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3368                 goto done;
3369
3370         switch (event) {
3371         case NETDEV_UP:
3372                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
3373
3374                 break;
3375         case NETDEV_DOWN:
3376                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
3377
3378                 break;
3379         default:
3380                 break;
3381         }
3382
3383 done:
3384         return NOTIFY_DONE;
3385 }
3386
3387 static struct notifier_block    qlcnic_netdev_cb = {
3388         .notifier_call = qlcnic_netdev_event,
3389 };
3390
3391 static struct notifier_block qlcnic_inetaddr_cb = {
3392         .notifier_call = qlcnic_inetaddr_event,
3393 };
3394 #else
3395 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
3396 { }
3397 #endif
3398 static const struct pci_error_handlers qlcnic_err_handler = {
3399         .error_detected = qlcnic_io_error_detected,
3400         .slot_reset = qlcnic_io_slot_reset,
3401         .resume = qlcnic_io_resume,
3402 };
3403
3404 static struct pci_driver qlcnic_driver = {
3405         .name = qlcnic_driver_name,
3406         .id_table = qlcnic_pci_tbl,
3407         .probe = qlcnic_probe,
3408         .remove = qlcnic_remove,
3409 #ifdef CONFIG_PM
3410         .suspend = qlcnic_suspend,
3411         .resume = qlcnic_resume,
3412 #endif
3413         .shutdown = qlcnic_shutdown,
3414         .err_handler = &qlcnic_err_handler
3415
3416 };
3417
3418 static int __init qlcnic_init_module(void)
3419 {
3420         int ret;
3421
3422         printk(KERN_INFO "%s\n", qlcnic_driver_string);
3423
3424 #ifdef CONFIG_INET
3425         register_netdevice_notifier(&qlcnic_netdev_cb);
3426         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
3427 #endif
3428
3429         ret = pci_register_driver(&qlcnic_driver);
3430         if (ret) {
3431 #ifdef CONFIG_INET
3432                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3433                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3434 #endif
3435         }
3436
3437         return ret;
3438 }
3439
3440 module_init(qlcnic_init_module);
3441
3442 static void __exit qlcnic_exit_module(void)
3443 {
3444         pci_unregister_driver(&qlcnic_driver);
3445
3446 #ifdef CONFIG_INET
3447         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3448         unregister_netdevice_notifier(&qlcnic_netdev_cb);
3449 #endif
3450 }
3451
3452 module_exit(qlcnic_exit_module);