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

   1 /*
   2  * QLogic qlcnic NIC Driver
   3  * Copyright (c) 2009-2013 QLogic Corporation
   4  *
   5  * See LICENSE.qlcnic for copyright and licensing details.
   6  */
   7
   8 #include <linux/vmalloc.h>
   9 #include <linux/interrupt.h>
  10
  11 #include "qlcnic.h"
  12 #include "qlcnic_sriov.h"
  13 #include "qlcnic_hw.h"
  14
  15 #include <linux/swab.h>
  16 #include <linux/dma-mapping.h>
  17 #include <linux/if_vlan.h>
  18 #include <net/ip.h>
  19 #include <linux/ipv6.h>
  20 #include <linux/inetdevice.h>
  21 #include <linux/aer.h>
  22 #include <linux/log2.h>
  23 #include <linux/pci.h>
  24
  25 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
  26 MODULE_LICENSE("GPL");
  27 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
  28 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
  29
  30 char qlcnic_driver_name[] = "qlcnic";
  31 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
  32         "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
  33
  34 static int qlcnic_mac_learn;
  35 module_param(qlcnic_mac_learn, int, 0444);
  36 MODULE_PARM_DESC(qlcnic_mac_learn,
  37                  "Mac Filter (0=learning is disabled, 1=Driver learning is enabled, 2=FDB learning is enabled)");
  38
  39 int qlcnic_use_msi = 1;
  40 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled");
  41 module_param_named(use_msi, qlcnic_use_msi, int, 0444);
  42
  43 int qlcnic_use_msi_x = 1;
  44 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled");
  45 module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444);
  46
  47 int qlcnic_auto_fw_reset = 1;
  48 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled");
  49 module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644);
  50
  51 int qlcnic_load_fw_file;
  52 MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file");
  53 module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);
  54
  55 int qlcnic_config_npars;
  56 module_param(qlcnic_config_npars, int, 0444);
  57 MODULE_PARM_DESC(qlcnic_config_npars, "Configure NPARs (0=disabled, 1=enabled");
  58
  59 static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
  60 static void qlcnic_remove(struct pci_dev *pdev);
  61 static int qlcnic_open(struct net_device *netdev);
  62 static int qlcnic_close(struct net_device *netdev);
  63 static void qlcnic_tx_timeout(struct net_device *netdev);
  64 static void qlcnic_attach_work(struct work_struct *work);
  65 static void qlcnic_fwinit_work(struct work_struct *work);
  66 static void qlcnic_fw_poll_work(struct work_struct *work);
  67 #ifdef CONFIG_NET_POLL_CONTROLLER
  68 static void qlcnic_poll_controller(struct net_device *netdev);
  69 #endif
  70
  71 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
  72 static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8);
  73 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
  74
  75 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
  76 static irqreturn_t qlcnic_intr(int irq, void *data);
  77 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
  78 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
  79 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data);
  80
  81 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
  82 static int qlcnic_start_firmware(struct qlcnic_adapter *);
  83
  84 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
  85 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
  86 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
  87 static void qlcnic_set_netdev_features(struct qlcnic_adapter *,
  88                                 struct qlcnic_esw_func_cfg *);
  89 static int qlcnic_vlan_rx_add(struct net_device *, __be16, u16);
  90 static int qlcnic_vlan_rx_del(struct net_device *, __be16, u16);
  91
  92 #define QLCNIC_IS_TSO_CAPABLE(adapter)  \
  93         ((adapter)->ahw->capabilities & QLCNIC_FW_CAPABILITY_TSO)
  94
  95 static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
  96 {
  97         struct qlcnic_hardware_context *ahw = adapter->ahw;
  98
  99         if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
 100                 return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
 101         else
 102                 return 1;
 103 }
 104
 105 /*  PCI Device ID Table  */
 106 #define ENTRY(device) \
 107         {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
 108         .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
 109
 110 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
 111         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
 112         ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
 113         ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE834X),
 114         {0,}
 115 };
 116
 117 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
 118
 119
 120 inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
 121 {
 122         writel(tx_ring->producer, tx_ring->crb_cmd_producer);
 123 }
 124
 125 static const u32 msi_tgt_status[8] = {
 126         ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
 127         ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
 128         ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
 129         ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
 130 };
 131
 132 static const u32 qlcnic_reg_tbl[] = {
 133         0x1B20A8,       /* PEG_HALT_STAT1 */
 134         0x1B20AC,       /* PEG_HALT_STAT2 */
 135         0x1B20B0,       /* FW_HEARTBEAT */
 136         0x1B2100,       /* LOCK ID */
 137         0x1B2128,       /* FW_CAPABILITIES */
 138         0x1B2138,       /* drv active */
 139         0x1B2140,       /* dev state */
 140         0x1B2144,       /* drv state */
 141         0x1B2148,       /* drv scratch */
 142         0x1B214C,       /* dev partition info */
 143         0x1B2174,       /* drv idc ver */
 144         0x1B2150,       /* fw version major */
 145         0x1B2154,       /* fw version minor */
 146         0x1B2158,       /* fw version sub */
 147         0x1B219C,       /* npar state */
 148         0x1B21FC,       /* FW_IMG_VALID */
 149         0x1B2250,       /* CMD_PEG_STATE */
 150         0x1B233C,       /* RCV_PEG_STATE */
 151         0x1B23B4,       /* ASIC TEMP */
 152         0x1B216C,       /* FW api */
 153         0x1B2170,       /* drv op mode */
 154         0x13C010,       /* flash lock */
 155         0x13C014,       /* flash unlock */
 156 };
 157
 158 static const struct qlcnic_board_info qlcnic_boards[] = {
 159         {0x1077, 0x8020, 0x1077, 0x203,
 160          "8200 Series Single Port 10GbE Converged Network Adapter"
 161          "(TCP/IP Networking)"},
 162         {0x1077, 0x8020, 0x1077, 0x207,
 163          "8200 Series Dual Port 10GbE Converged Network Adapter"
 164          "(TCP/IP Networking)"},
 165         {0x1077, 0x8020, 0x1077, 0x20b,
 166          "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter"},
 167         {0x1077, 0x8020, 0x1077, 0x20c,
 168          "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter"},
 169         {0x1077, 0x8020, 0x1077, 0x20f,
 170          "3200 Series Single Port 10Gb Intelligent Ethernet Adapter"},
 171         {0x1077, 0x8020, 0x103c, 0x3733,
 172          "NC523SFP 10Gb 2-port Server Adapter"},
 173         {0x1077, 0x8020, 0x103c, 0x3346,
 174          "CN1000Q Dual Port Converged Network Adapter"},
 175         {0x1077, 0x8020, 0x1077, 0x210,
 176          "QME8242-k 10GbE Dual Port Mezzanine Card"},
 177         {0x1077, 0x8020, 0x0, 0x0, "cLOM8214 1/10GbE Controller"},
 178 };
 179
 180 #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)
 181 #define QLC_MAX_SDS_RINGS       8
 182
 183 static const
 184 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
 185
 186 int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
 187 {
 188         int size = sizeof(struct qlcnic_host_sds_ring) * count;
 189
 190         recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
 191
 192         return recv_ctx->sds_rings == NULL;
 193 }
 194
 195 void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
 196 {
 197         if (recv_ctx->sds_rings != NULL)
 198                 kfree(recv_ctx->sds_rings);
 199
 200         recv_ctx->sds_rings = NULL;
 201 }
 202
 203 int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
 204 {
 205         u8 mac_addr[ETH_ALEN];
 206         struct net_device *netdev = adapter->netdev;
 207         struct pci_dev *pdev = adapter->pdev;
 208
 209         if (qlcnic_get_mac_address(adapter, mac_addr) != 0)
 210                 return -EIO;
 211
 212         memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
 213         memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
 214
 215         /* set station address */
 216
 217         if (!is_valid_ether_addr(netdev->dev_addr))
 218                 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
 219                                         netdev->dev_addr);
 220
 221         return 0;
 222 }
 223
 224 static int qlcnic_set_mac(struct net_device *netdev, void *p)
 225 {
 226         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 227         struct sockaddr *addr = p;
 228
 229         if (qlcnic_sriov_vf_check(adapter))
 230                 return -EINVAL;
 231
 232         if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
 233                 return -EOPNOTSUPP;
 234
 235         if (!is_valid_ether_addr(addr->sa_data))
 236                 return -EINVAL;
 237
 238         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 239                 netif_device_detach(netdev);
 240                 qlcnic_napi_disable(adapter);
 241         }
 242
 243         memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
 244         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 245         qlcnic_set_multi(adapter->netdev);
 246
 247         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 248                 netif_device_attach(netdev);
 249                 qlcnic_napi_enable(adapter);
 250         }
 251         return 0;
 252 }
 253
 254 static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
 255                         struct net_device *netdev, const unsigned char *addr)
 256 {
 257         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 258         int err = -EOPNOTSUPP;
 259
 260         if (!adapter->fdb_mac_learn)
 261                 return ndo_dflt_fdb_del(ndm, tb, netdev, addr);
 262
 263         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 264                 if (is_unicast_ether_addr(addr))
 265                         err = qlcnic_nic_del_mac(adapter, addr);
 266                 else if (is_multicast_ether_addr(addr))
 267                         err = dev_mc_del(netdev, addr);
 268                 else
 269                         err =  -EINVAL;
 270         }
 271         return err;
 272 }
 273
 274 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 275                         struct net_device *netdev,
 276                         const unsigned char *addr, u16 flags)
 277 {
 278         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 279         int err = 0;
 280
 281         if (!adapter->fdb_mac_learn)
 282                 return ndo_dflt_fdb_add(ndm, tb, netdev, addr, flags);
 283
 284         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 285                 pr_info("%s: FDB e-switch is not enabled\n", __func__);
 286                 return -EOPNOTSUPP;
 287         }
 288
 289         if (ether_addr_equal(addr, adapter->mac_addr))
 290                 return err;
 291
 292         if (is_unicast_ether_addr(addr))
 293                 err = qlcnic_nic_add_mac(adapter, addr);
 294         else if (is_multicast_ether_addr(addr))
 295                 err = dev_mc_add_excl(netdev, addr);
 296         else
 297                 err = -EINVAL;
 298
 299         return err;
 300 }
 301
 302 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
 303                         struct net_device *netdev, int idx)
 304 {
 305         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 306
 307         if (!adapter->fdb_mac_learn)
 308                 return ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
 309
 310         if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
 311                 idx = ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
 312
 313         return idx;
 314 }
 315
 316 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
 317 {
 318         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
 319                 usleep_range(10000, 11000);
 320
 321         cancel_delayed_work_sync(&adapter->fw_work);
 322 }
 323
 324 static const struct net_device_ops qlcnic_netdev_ops = {
 325         .ndo_open          = qlcnic_open,
 326         .ndo_stop          = qlcnic_close,
 327         .ndo_start_xmit    = qlcnic_xmit_frame,
 328         .ndo_get_stats     = qlcnic_get_stats,
 329         .ndo_validate_addr = eth_validate_addr,
 330         .ndo_set_rx_mode   = qlcnic_set_multi,
 331         .ndo_set_mac_address    = qlcnic_set_mac,
 332         .ndo_change_mtu    = qlcnic_change_mtu,
 333         .ndo_fix_features  = qlcnic_fix_features,
 334         .ndo_set_features  = qlcnic_set_features,
 335         .ndo_tx_timeout    = qlcnic_tx_timeout,
 336         .ndo_vlan_rx_add_vid    = qlcnic_vlan_rx_add,
 337         .ndo_vlan_rx_kill_vid   = qlcnic_vlan_rx_del,
 338         .ndo_fdb_add            = qlcnic_fdb_add,
 339         .ndo_fdb_del            = qlcnic_fdb_del,
 340         .ndo_fdb_dump           = qlcnic_fdb_dump,
 341 #ifdef CONFIG_NET_POLL_CONTROLLER
 342         .ndo_poll_controller = qlcnic_poll_controller,
 343 #endif
 344 #ifdef CONFIG_QLCNIC_SRIOV
 345         .ndo_set_vf_mac         = qlcnic_sriov_set_vf_mac,
 346         .ndo_set_vf_tx_rate     = qlcnic_sriov_set_vf_tx_rate,
 347         .ndo_get_vf_config      = qlcnic_sriov_get_vf_config,
 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         .del_rx_ctx                     = qlcnic_82xx_fw_cmd_del_rx_ctx,
 391         .del_tx_ctx                     = qlcnic_82xx_fw_cmd_del_tx_ctx,
 392         .setup_link_event               = qlcnic_82xx_linkevent_request,
 393         .get_nic_info                   = qlcnic_82xx_get_nic_info,
 394         .get_pci_info                   = qlcnic_82xx_get_pci_info,
 395         .set_nic_info                   = qlcnic_82xx_set_nic_info,
 396         .change_macvlan                 = qlcnic_82xx_sre_macaddr_change,
 397         .napi_enable                    = qlcnic_82xx_napi_enable,
 398         .napi_disable                   = qlcnic_82xx_napi_disable,
 399         .config_intr_coal               = qlcnic_82xx_config_intr_coalesce,
 400         .config_rss                     = qlcnic_82xx_config_rss,
 401         .config_hw_lro                  = qlcnic_82xx_config_hw_lro,
 402         .config_loopback                = qlcnic_82xx_set_lb_mode,
 403         .clear_loopback                 = qlcnic_82xx_clear_lb_mode,
 404         .config_promisc_mode            = qlcnic_82xx_nic_set_promisc,
 405         .change_l2_filter               = qlcnic_82xx_change_filter,
 406         .get_board_info                 = qlcnic_82xx_get_board_info,
 407 };
 408
 409 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 410 {
 411         struct pci_dev *pdev = adapter->pdev;
 412         int err = -1, i;
 413         int max_tx_rings, tx_vector;
 414
 415         if (adapter->flags & QLCNIC_TX_INTR_SHARED) {
 416                 max_tx_rings = 0;
 417                 tx_vector = 0;
 418         } else {
 419                 max_tx_rings = adapter->max_drv_tx_rings;
 420                 tx_vector = 1;
 421         }
 422
 423         if (!adapter->msix_entries) {
 424                 adapter->msix_entries = kcalloc(num_msix,
 425                                                 sizeof(struct msix_entry),
 426                                                 GFP_KERNEL);
 427                 if (!adapter->msix_entries)
 428                         return -ENOMEM;
 429         }
 430
 431         adapter->max_sds_rings = 1;
 432         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 433
 434         if (adapter->ahw->msix_supported) {
 435  enable_msix:
 436                 for (i = 0; i < num_msix; i++)
 437                         adapter->msix_entries[i].entry = i;
 438                 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
 439                 if (err == 0) {
 440                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 441                         if (qlcnic_83xx_check(adapter)) {
 442                                 adapter->ahw->num_msix = num_msix;
 443                                 /* subtract mail box and tx ring vectors */
 444                                 adapter->max_sds_rings = num_msix -
 445                                                          max_tx_rings - 1;
 446                         } else {
 447                                 adapter->max_sds_rings = num_msix;
 448                         }
 449                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 450                         return err;
 451                 } else if (err > 0) {
 452                         dev_info(&pdev->dev,
 453                                  "Unable to allocate %d MSI-X interrupt vectors\n",
 454                                  num_msix);
 455                         if (qlcnic_83xx_check(adapter)) {
 456                                 if (err < (QLC_83XX_MINIMUM_VECTOR - tx_vector))
 457                                         return err;
 458                                 err -= (max_tx_rings + 1);
 459                                 num_msix = rounddown_pow_of_two(err);
 460                                 num_msix += (max_tx_rings + 1);
 461                         } else {
 462                                 num_msix = rounddown_pow_of_two(err);
 463                         }
 464
 465                         if (num_msix) {
 466                                 dev_info(&pdev->dev,
 467                                          "Trying to allocate %d MSI-X interrupt vectors\n",
 468                                          num_msix);
 469                                 goto enable_msix;
 470                         }
 471                 } else {
 472                         dev_info(&pdev->dev,
 473                                  "Unable to allocate %d MSI-X interrupt vectors\n",
 474                                  num_msix);
 475                 }
 476         }
 477
 478         return err;
 479 }
 480
 481 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
 482 {
 483         int err = 0;
 484         u32 offset, mask_reg;
 485         const struct qlcnic_legacy_intr_set *legacy_intrp;
 486         struct qlcnic_hardware_context *ahw = adapter->ahw;
 487         struct pci_dev *pdev = adapter->pdev;
 488
 489         if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
 490                 adapter->flags |= QLCNIC_MSI_ENABLED;
 491                 offset = msi_tgt_status[adapter->ahw->pci_func];
 492                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
 493                                                             offset);
 494                 dev_info(&pdev->dev, "using msi interrupts\n");
 495                 adapter->msix_entries[0].vector = pdev->irq;
 496                 return err;
 497         }
 498         if (qlcnic_use_msi || qlcnic_use_msi_x)
 499                 return -EOPNOTSUPP;
 500
 501         legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
 502         adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
 503         offset = legacy_intrp->tgt_status_reg;
 504         adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
 505         mask_reg = legacy_intrp->tgt_mask_reg;
 506         adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
 507         adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
 508         adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
 509         dev_info(&pdev->dev, "using legacy interrupts\n");
 510         adapter->msix_entries[0].vector = pdev->irq;
 511         return err;
 512 }
 513
 514 int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter, u8 num_intr)
 515 {
 516         int num_msix, err = 0;
 517
 518         if (!num_intr)
 519                 num_intr = QLCNIC_DEF_NUM_STS_DESC_RINGS;
 520
 521         if (adapter->ahw->msix_supported)
 522                 num_msix = rounddown_pow_of_two(min_t(int, num_online_cpus(),
 523                                                 num_intr));
 524         else
 525                 num_msix = 1;
 526
 527         err = qlcnic_enable_msix(adapter, num_msix);
 528         if (err == -ENOMEM || !err)
 529                 return err;
 530
 531         err = qlcnic_enable_msi_legacy(adapter);
 532         if (!err)
 533                 return err;
 534
 535         return -EIO;
 536 }
 537
 538 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 539 {
 540         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 541                 pci_disable_msix(adapter->pdev);
 542         if (adapter->flags & QLCNIC_MSI_ENABLED)
 543                 pci_disable_msi(adapter->pdev);
 544
 545         kfree(adapter->msix_entries);
 546         adapter->msix_entries = NULL;
 547
 548         if (adapter->ahw->intr_tbl) {
 549                 vfree(adapter->ahw->intr_tbl);
 550                 adapter->ahw->intr_tbl = NULL;
 551         }
 552 }
 553
 554 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
 555 {
 556         if (ahw->pci_base0 != NULL)
 557                 iounmap(ahw->pci_base0);
 558 }
 559
 560 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
 561 {
 562         struct qlcnic_pci_info *pci_info;
 563         int ret;
 564
 565         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 566                 switch (adapter->ahw->port_type) {
 567                 case QLCNIC_GBE:
 568                         adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_GBE_PORTS;
 569                         break;
 570                 case QLCNIC_XGBE:
 571                         adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_XG_PORTS;
 572                         break;
 573                 }
 574                 return 0;
 575         }
 576
 577         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
 578                 return 0;
 579
 580         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 581         if (!pci_info)
 582                 return -ENOMEM;
 583
 584         ret = qlcnic_get_pci_info(adapter, pci_info);
 585         kfree(pci_info);
 586         return ret;
 587 }
 588
 589 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 590 {
 591         struct qlcnic_pci_info *pci_info;
 592         int i, ret = 0, j = 0;
 593         u16 act_pci_func;
 594         u8 pfn;
 595
 596         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 597         if (!pci_info)
 598                 return -ENOMEM;
 599
 600         ret = qlcnic_get_pci_info(adapter, pci_info);
 601         if (ret)
 602                 goto err_pci_info;
 603
 604         act_pci_func = adapter->ahw->act_pci_func;
 605
 606         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
 607                                  act_pci_func, GFP_KERNEL);
 608         if (!adapter->npars) {
 609                 ret = -ENOMEM;
 610                 goto err_pci_info;
 611         }
 612
 613         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
 614                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
 615         if (!adapter->eswitch) {
 616                 ret = -ENOMEM;
 617                 goto err_npars;
 618         }
 619
 620         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 621                 pfn = pci_info[i].id;
 622
 623                 if (pfn >= QLCNIC_MAX_PCI_FUNC) {
 624                         ret = QL_STATUS_INVALID_PARAM;
 625                         goto err_eswitch;
 626                 }
 627
 628                 if (!pci_info[i].active ||
 629                     (pci_info[i].type != QLCNIC_TYPE_NIC))
 630                         continue;
 631
 632                 adapter->npars[j].pci_func = pfn;
 633                 adapter->npars[j].active = (u8)pci_info[i].active;
 634                 adapter->npars[j].type = (u8)pci_info[i].type;
 635                 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
 636                 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
 637                 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
 638                 j++;
 639         }
 640
 641         for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++) {
 642                 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
 643                 if (qlcnic_83xx_check(adapter))
 644                         qlcnic_enable_eswitch(adapter, i, 1);
 645         }
 646
 647         kfree(pci_info);
 648         return 0;
 649
 650 err_eswitch:
 651         kfree(adapter->eswitch);
 652         adapter->eswitch = NULL;
 653 err_npars:
 654         kfree(adapter->npars);
 655         adapter->npars = NULL;
 656 err_pci_info:
 657         kfree(pci_info);
 658
 659         return ret;
 660 }
 661
 662 static int
 663 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
 664 {
 665         u8 id;
 666         int i, ret = 1;
 667         u32 data = QLCNIC_MGMT_FUNC;
 668         struct qlcnic_hardware_context *ahw = adapter->ahw;
 669
 670         ret = qlcnic_api_lock(adapter);
 671         if (ret)
 672                 goto err_lock;
 673
 674         if (qlcnic_config_npars) {
 675                 for (i = 0; i < ahw->act_pci_func; i++) {
 676                         id = adapter->npars[i].pci_func;
 677                         if (id == ahw->pci_func)
 678                                 continue;
 679                         data |= (qlcnic_config_npars &
 680                                         QLC_DEV_SET_DRV(0xf, id));
 681                 }
 682         } else {
 683                 data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 684                 data = (data & ~QLC_DEV_SET_DRV(0xf, ahw->pci_func)) |
 685                         (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
 686                                          ahw->pci_func));
 687         }
 688         QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
 689         qlcnic_api_unlock(adapter);
 690 err_lock:
 691         return ret;
 692 }
 693
 694 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
 695                             const struct pci_device_id *ent)
 696 {
 697         u32 op_mode, priv_level;
 698
 699         /* Determine FW API version */
 700         adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
 701                                                            QLCNIC_FW_API);
 702
 703         /* Find PCI function number */
 704         qlcnic_get_func_no(adapter);
 705
 706         /* Determine function privilege level */
 707         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 708         if (op_mode == QLC_DEV_DRV_DEFAULT)
 709                 priv_level = QLCNIC_MGMT_FUNC;
 710         else
 711                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
 712
 713         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
 714                 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
 715                 dev_info(&adapter->pdev->dev,
 716                         "HAL Version: %d Non Privileged function\n",
 717                          adapter->ahw->fw_hal_version);
 718                 adapter->nic_ops = &qlcnic_vf_ops;
 719         } else
 720                 adapter->nic_ops = &qlcnic_ops;
 721 }
 722
 723 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
 724 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
 725 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
 726 {
 727         switch (dev_id) {
 728         case PCI_DEVICE_ID_QLOGIC_QLE824X:
 729                 *bar = QLCNIC_82XX_BAR0_LENGTH;
 730                 break;
 731         case PCI_DEVICE_ID_QLOGIC_QLE834X:
 732         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
 733                 *bar = QLCNIC_83XX_BAR0_LENGTH;
 734                 break;
 735         default:
 736                 *bar = 0;
 737         }
 738 }
 739
 740 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
 741                                 struct qlcnic_hardware_context *ahw)
 742 {
 743         u32 offset;
 744         void __iomem *mem_ptr0 = NULL;
 745         unsigned long mem_len, pci_len0 = 0, bar0_len;
 746
 747         /* remap phys address */
 748         mem_len = pci_resource_len(pdev, 0);
 749
 750         qlcnic_get_bar_length(pdev->device, &bar0_len);
 751         if (mem_len >= bar0_len) {
 752
 753                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
 754                 if (mem_ptr0 == NULL) {
 755                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
 756                         return -EIO;
 757                 }
 758                 pci_len0 = mem_len;
 759         } else {
 760                 return -EIO;
 761         }
 762
 763         dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
 764
 765         ahw->pci_base0 = mem_ptr0;
 766         ahw->pci_len0 = pci_len0;
 767         offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
 768         qlcnic_get_ioaddr(ahw, offset);
 769
 770         return 0;
 771 }
 772
 773 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
 774 {
 775         struct pci_dev *pdev = adapter->pdev;
 776         int i, found = 0;
 777
 778         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
 779                 if (qlcnic_boards[i].vendor == pdev->vendor &&
 780                         qlcnic_boards[i].device == pdev->device &&
 781                         qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
 782                         qlcnic_boards[i].sub_device == pdev->subsystem_device) {
 783                                 sprintf(name, "%pM: %s" ,
 784                                         adapter->mac_addr,
 785                                         qlcnic_boards[i].short_name);
 786                                 found = 1;
 787                                 break;
 788                 }
 789
 790         }
 791
 792         if (!found)
 793                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
 794 }
 795
 796 static void
 797 qlcnic_check_options(struct qlcnic_adapter *adapter)
 798 {
 799         int err;
 800         u32 fw_major, fw_minor, fw_build, prev_fw_version;
 801         struct pci_dev *pdev = adapter->pdev;
 802         struct qlcnic_hardware_context *ahw = adapter->ahw;
 803         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
 804
 805         prev_fw_version = adapter->fw_version;
 806
 807         fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
 808         fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
 809         fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
 810
 811         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
 812
 813         err = qlcnic_get_board_info(adapter);
 814         if (err) {
 815                 dev_err(&pdev->dev, "Error getting board config info.\n");
 816                 return;
 817         }
 818         if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
 819                 if (fw_dump->tmpl_hdr == NULL ||
 820                                 adapter->fw_version > prev_fw_version) {
 821                         if (fw_dump->tmpl_hdr)
 822                                 vfree(fw_dump->tmpl_hdr);
 823                         if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
 824                                 dev_info(&pdev->dev,
 825                                         "Supports FW dump capability\n");
 826                 }
 827         }
 828
 829         dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
 830                  QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
 831
 832         if (adapter->ahw->port_type == QLCNIC_XGBE) {
 833                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 834                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
 835                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
 836                 } else {
 837                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
 838                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
 839                 }
 840
 841                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 842                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 843
 844         } else if (adapter->ahw->port_type == QLCNIC_GBE) {
 845                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
 846                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 847                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 848                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
 849         }
 850
 851         adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
 852
 853         adapter->num_txd = MAX_CMD_DESCRIPTORS;
 854
 855         adapter->max_rds_rings = MAX_RDS_RINGS;
 856 }
 857
 858 static int
 859 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
 860 {
 861         int err;
 862         struct qlcnic_info nic_info;
 863
 864         memset(&nic_info, 0, sizeof(struct qlcnic_info));
 865         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
 866         if (err)
 867                 return err;
 868
 869         adapter->ahw->physical_port = (u8)nic_info.phys_port;
 870         adapter->ahw->switch_mode = nic_info.switch_mode;
 871         adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
 872         adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
 873         adapter->ahw->capabilities = nic_info.capabilities;
 874
 875         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
 876                 u32 temp;
 877                 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
 878                 adapter->ahw->capabilities2 = temp;
 879         }
 880         adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
 881         adapter->ahw->max_mtu = nic_info.max_mtu;
 882
 883         /* Disable NPAR for 83XX */
 884         if (qlcnic_83xx_check(adapter))
 885                 return err;
 886
 887         if (adapter->ahw->capabilities & BIT_6)
 888                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
 889         else
 890                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
 891
 892         return err;
 893 }
 894
 895 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
 896                             struct qlcnic_esw_func_cfg *esw_cfg)
 897 {
 898         if (esw_cfg->discard_tagged)
 899                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
 900         else
 901                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
 902
 903         if (esw_cfg->vlan_id)
 904                 adapter->pvid = esw_cfg->vlan_id;
 905         else
 906                 adapter->pvid = 0;
 907 }
 908
 909 static int
 910 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
 911 {
 912         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 913         set_bit(vid, adapter->vlans);
 914         return 0;
 915 }
 916
 917 static int
 918 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
 919 {
 920         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 921
 922         qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
 923         clear_bit(vid, adapter->vlans);
 924         return 0;
 925 }
 926
 927 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
 928                                       struct qlcnic_esw_func_cfg *esw_cfg)
 929 {
 930         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
 931                                 QLCNIC_PROMISC_DISABLED);
 932
 933         if (esw_cfg->mac_anti_spoof)
 934                 adapter->flags |= QLCNIC_MACSPOOF;
 935
 936         if (!esw_cfg->mac_override)
 937                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
 938
 939         if (!esw_cfg->promisc_mode)
 940                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
 941
 942         qlcnic_set_netdev_features(adapter, esw_cfg);
 943 }
 944
 945 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
 946 {
 947         struct qlcnic_esw_func_cfg esw_cfg;
 948
 949         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
 950                 return 0;
 951
 952         esw_cfg.pci_func = adapter->ahw->pci_func;
 953         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
 954                         return -EIO;
 955         qlcnic_set_vlan_config(adapter, &esw_cfg);
 956         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
 957
 958         return 0;
 959 }
 960
 961 static void
 962 qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
 963                 struct qlcnic_esw_func_cfg *esw_cfg)
 964 {
 965         struct net_device *netdev = adapter->netdev;
 966         unsigned long features, vlan_features;
 967
 968         if (qlcnic_83xx_check(adapter))
 969                 return;
 970
 971         features = (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
 972                     NETIF_F_IPV6_CSUM | NETIF_F_GRO);
 973         vlan_features = (NETIF_F_SG | NETIF_F_IP_CSUM |
 974                         NETIF_F_IPV6_CSUM);
 975
 976         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
 977                 features |= (NETIF_F_TSO | NETIF_F_TSO6);
 978                 vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
 979         }
 980
 981         if (netdev->features & NETIF_F_LRO)
 982                 features |= NETIF_F_LRO;
 983
 984         if (esw_cfg->offload_flags & BIT_0) {
 985                 netdev->features |= features;
 986                 adapter->rx_csum = 1;
 987                 if (!(esw_cfg->offload_flags & BIT_1)) {
 988                         netdev->features &= ~NETIF_F_TSO;
 989                         features &= ~NETIF_F_TSO;
 990                 }
 991                 if (!(esw_cfg->offload_flags & BIT_2)) {
 992                         netdev->features &= ~NETIF_F_TSO6;
 993                         features &= ~NETIF_F_TSO6;
 994                 }
 995         } else {
 996                 netdev->features &= ~features;
 997                 features &= ~features;
 998                 adapter->rx_csum = 0;
 999         }
1000
1001         netdev->vlan_features = (features & vlan_features);
1002 }
1003
1004 static int
1005 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1006 {
1007         u32 op_mode, priv_level;
1008         int err = 0;
1009
1010         err = qlcnic_initialize_nic(adapter);
1011         if (err)
1012                 return err;
1013
1014         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1015                 return 0;
1016
1017         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1018         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1019
1020         if (op_mode == QLC_DEV_DRV_DEFAULT)
1021                 priv_level = QLCNIC_MGMT_FUNC;
1022         else
1023                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1024
1025         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1026                 if (priv_level == QLCNIC_MGMT_FUNC) {
1027                         adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1028                         err = qlcnic_init_pci_info(adapter);
1029                         if (err)
1030                                 return err;
1031                         /* Set privilege level for other functions */
1032                         qlcnic_set_function_modes(adapter);
1033                         dev_info(&adapter->pdev->dev,
1034                                 "HAL Version: %d, Management function\n",
1035                                  adapter->ahw->fw_hal_version);
1036                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1037                         adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1038                         dev_info(&adapter->pdev->dev,
1039                                 "HAL Version: %d, Privileged function\n",
1040                                  adapter->ahw->fw_hal_version);
1041                 }
1042         }
1043
1044         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1045
1046         return err;
1047 }
1048
1049 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1050 {
1051         struct qlcnic_esw_func_cfg esw_cfg;
1052         struct qlcnic_npar_info *npar;
1053         u8 i;
1054
1055         if (adapter->need_fw_reset)
1056                 return 0;
1057
1058         for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1059                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1060                 esw_cfg.pci_func = adapter->npars[i].pci_func;
1061                 esw_cfg.mac_override = BIT_0;
1062                 esw_cfg.promisc_mode = BIT_0;
1063                 if (qlcnic_82xx_check(adapter)) {
1064                         esw_cfg.offload_flags = BIT_0;
1065                         if (QLCNIC_IS_TSO_CAPABLE(adapter))
1066                                 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1067                 }
1068                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1069                         return -EIO;
1070                 npar = &adapter->npars[i];
1071                 npar->pvid = esw_cfg.vlan_id;
1072                 npar->mac_override = esw_cfg.mac_override;
1073                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1074                 npar->discard_tagged = esw_cfg.discard_tagged;
1075                 npar->promisc_mode = esw_cfg.promisc_mode;
1076                 npar->offload_flags = esw_cfg.offload_flags;
1077         }
1078
1079         return 0;
1080 }
1081
1082
1083 static int
1084 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1085                         struct qlcnic_npar_info *npar, int pci_func)
1086 {
1087         struct qlcnic_esw_func_cfg esw_cfg;
1088         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1089         esw_cfg.pci_func = pci_func;
1090         esw_cfg.vlan_id = npar->pvid;
1091         esw_cfg.mac_override = npar->mac_override;
1092         esw_cfg.discard_tagged = npar->discard_tagged;
1093         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1094         esw_cfg.offload_flags = npar->offload_flags;
1095         esw_cfg.promisc_mode = npar->promisc_mode;
1096         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1097                 return -EIO;
1098
1099         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1100         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1101                 return -EIO;
1102
1103         return 0;
1104 }
1105
1106 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1107 {
1108         int i, err;
1109         struct qlcnic_npar_info *npar;
1110         struct qlcnic_info nic_info;
1111         u8 pci_func;
1112
1113         if (qlcnic_82xx_check(adapter))
1114                 if (!adapter->need_fw_reset)
1115                         return 0;
1116
1117         /* Set the NPAR config data after FW reset */
1118         for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1119                 npar = &adapter->npars[i];
1120                 pci_func = npar->pci_func;
1121                 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1122                 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1123                 if (err)
1124                         return err;
1125                 nic_info.min_tx_bw = npar->min_bw;
1126                 nic_info.max_tx_bw = npar->max_bw;
1127                 err = qlcnic_set_nic_info(adapter, &nic_info);
1128                 if (err)
1129                         return err;
1130
1131                 if (npar->enable_pm) {
1132                         err = qlcnic_config_port_mirroring(adapter,
1133                                                            npar->dest_npar, 1,
1134                                                            pci_func);
1135                         if (err)
1136                                 return err;
1137                 }
1138                 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1139                 if (err)
1140                         return err;
1141         }
1142         return 0;
1143 }
1144
1145 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1146 {
1147         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1148         u32 npar_state;
1149
1150         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1151                 return 0;
1152
1153         npar_state = QLC_SHARED_REG_RD32(adapter,
1154                                          QLCNIC_CRB_DEV_NPAR_STATE);
1155         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1156                 msleep(1000);
1157                 npar_state = QLC_SHARED_REG_RD32(adapter,
1158                                                  QLCNIC_CRB_DEV_NPAR_STATE);
1159         }
1160         if (!npar_opt_timeo) {
1161                 dev_err(&adapter->pdev->dev,
1162                         "Waiting for NPAR state to operational timeout\n");
1163                 return -EIO;
1164         }
1165         return 0;
1166 }
1167
1168 static int
1169 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1170 {
1171         int err;
1172
1173         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1174             adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1175                 return 0;
1176
1177         err = qlcnic_set_default_offload_settings(adapter);
1178         if (err)
1179                 return err;
1180
1181         err = qlcnic_reset_npar_config(adapter);
1182         if (err)
1183                 return err;
1184
1185         qlcnic_dev_set_npar_ready(adapter);
1186
1187         return err;
1188 }
1189
1190 int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1191 {
1192         int err;
1193
1194         err = qlcnic_can_start_firmware(adapter);
1195         if (err < 0)
1196                 return err;
1197         else if (!err)
1198                 goto check_fw_status;
1199
1200         if (qlcnic_load_fw_file)
1201                 qlcnic_request_firmware(adapter);
1202         else {
1203                 err = qlcnic_check_flash_fw_ver(adapter);
1204                 if (err)
1205                         goto err_out;
1206
1207                 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1208         }
1209
1210         err = qlcnic_need_fw_reset(adapter);
1211         if (err == 0)
1212                 goto check_fw_status;
1213
1214         err = qlcnic_pinit_from_rom(adapter);
1215         if (err)
1216                 goto err_out;
1217
1218         err = qlcnic_load_firmware(adapter);
1219         if (err)
1220                 goto err_out;
1221
1222         qlcnic_release_firmware(adapter);
1223         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1224
1225 check_fw_status:
1226         err = qlcnic_check_fw_status(adapter);
1227         if (err)
1228                 goto err_out;
1229
1230         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1231         qlcnic_idc_debug_info(adapter, 1);
1232         err = qlcnic_check_eswitch_mode(adapter);
1233         if (err) {
1234                 dev_err(&adapter->pdev->dev,
1235                         "Memory allocation failed for eswitch\n");
1236                 goto err_out;
1237         }
1238         err = qlcnic_set_mgmt_operations(adapter);
1239         if (err)
1240                 goto err_out;
1241
1242         qlcnic_check_options(adapter);
1243         adapter->need_fw_reset = 0;
1244
1245         qlcnic_release_firmware(adapter);
1246         return 0;
1247
1248 err_out:
1249         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1250         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1251
1252         qlcnic_release_firmware(adapter);
1253         return err;
1254 }
1255
1256 static int
1257 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1258 {
1259         irq_handler_t handler;
1260         struct qlcnic_host_sds_ring *sds_ring;
1261         struct qlcnic_host_tx_ring *tx_ring;
1262         int err, ring;
1263
1264         unsigned long flags = 0;
1265         struct net_device *netdev = adapter->netdev;
1266         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1267
1268         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1269                 if (qlcnic_82xx_check(adapter))
1270                         handler = qlcnic_tmp_intr;
1271                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1272                         flags |= IRQF_SHARED;
1273
1274         } else {
1275                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1276                         handler = qlcnic_msix_intr;
1277                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1278                         handler = qlcnic_msi_intr;
1279                 else {
1280                         flags |= IRQF_SHARED;
1281                         if (qlcnic_82xx_check(adapter))
1282                                 handler = qlcnic_intr;
1283                         else
1284                                 handler = qlcnic_83xx_intr;
1285                 }
1286         }
1287         adapter->irq = netdev->irq;
1288
1289         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1290                 if (qlcnic_82xx_check(adapter) ||
1291                     (qlcnic_83xx_check(adapter) &&
1292                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1293                         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1294                                 sds_ring = &recv_ctx->sds_rings[ring];
1295                                 snprintf(sds_ring->name, sizeof(int) + IFNAMSIZ,
1296                                          "%s[%d]", netdev->name, ring);
1297                                 err = request_irq(sds_ring->irq, handler, flags,
1298                                                   sds_ring->name, sds_ring);
1299                                 if (err)
1300                                         return err;
1301                         }
1302                 }
1303                 if (qlcnic_83xx_check(adapter) &&
1304                     (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1305                     !(adapter->flags & QLCNIC_TX_INTR_SHARED)) {
1306                         handler = qlcnic_msix_tx_intr;
1307                         for (ring = 0; ring < adapter->max_drv_tx_rings;
1308                              ring++) {
1309                                 tx_ring = &adapter->tx_ring[ring];
1310                                 snprintf(tx_ring->name, sizeof(int) + IFNAMSIZ,
1311                                          "%s[%d]", netdev->name,
1312                                          adapter->max_sds_rings + ring);
1313                                 err = request_irq(tx_ring->irq, handler, flags,
1314                                                   tx_ring->name, tx_ring);
1315                                 if (err)
1316                                         return err;
1317                         }
1318                 }
1319         }
1320         return 0;
1321 }
1322
1323 static void
1324 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1325 {
1326         int ring;
1327         struct qlcnic_host_sds_ring *sds_ring;
1328         struct qlcnic_host_tx_ring *tx_ring;
1329
1330         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1331
1332         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1333                 if (qlcnic_82xx_check(adapter) ||
1334                     (qlcnic_83xx_check(adapter) &&
1335                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1336                         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1337                                 sds_ring = &recv_ctx->sds_rings[ring];
1338                                 free_irq(sds_ring->irq, sds_ring);
1339                         }
1340                 }
1341                 if (qlcnic_83xx_check(adapter) &&
1342                     !(adapter->flags & QLCNIC_TX_INTR_SHARED)) {
1343                         for (ring = 0; ring < adapter->max_drv_tx_rings;
1344                              ring++) {
1345                                 tx_ring = &adapter->tx_ring[ring];
1346                                 if (tx_ring->irq)
1347                                         free_irq(tx_ring->irq, tx_ring);
1348                         }
1349                 }
1350         }
1351 }
1352
1353 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1354 {
1355         u32 capab = 0;
1356
1357         if (qlcnic_82xx_check(adapter)) {
1358                 if (adapter->ahw->capabilities2 &
1359                     QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1360                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1361         } else {
1362                 capab = adapter->ahw->capabilities;
1363                 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1364                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1365         }
1366 }
1367
1368 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1369 {
1370         int ring;
1371         struct qlcnic_host_rds_ring *rds_ring;
1372
1373         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1374                 return -EIO;
1375
1376         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1377                 return 0;
1378         if (qlcnic_set_eswitch_port_config(adapter))
1379                 return -EIO;
1380         qlcnic_get_lro_mss_capability(adapter);
1381
1382         if (qlcnic_fw_create_ctx(adapter))
1383                 return -EIO;
1384
1385         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1386                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1387                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1388         }
1389
1390         qlcnic_set_multi(netdev);
1391         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1392
1393         adapter->ahw->linkup = 0;
1394
1395         if (adapter->max_sds_rings > 1)
1396                 qlcnic_config_rss(adapter, 1);
1397
1398         qlcnic_config_intr_coalesce(adapter);
1399
1400         if (netdev->features & NETIF_F_LRO)
1401                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1402
1403         qlcnic_napi_enable(adapter);
1404
1405         qlcnic_linkevent_request(adapter, 1);
1406
1407         adapter->ahw->reset_context = 0;
1408         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1409         return 0;
1410 }
1411
1412 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1413 {
1414         int err = 0;
1415
1416         rtnl_lock();
1417         if (netif_running(netdev))
1418                 err = __qlcnic_up(adapter, netdev);
1419         rtnl_unlock();
1420
1421         return err;
1422 }
1423
1424 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1425 {
1426         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1427                 return;
1428
1429         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1430                 return;
1431
1432         if (qlcnic_sriov_vf_check(adapter))
1433                 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1434         smp_mb();
1435         spin_lock(&adapter->tx_clean_lock);
1436         netif_carrier_off(netdev);
1437         adapter->ahw->linkup = 0;
1438         netif_tx_disable(netdev);
1439
1440         qlcnic_free_mac_list(adapter);
1441
1442         if (adapter->fhash.fnum)
1443                 qlcnic_delete_lb_filters(adapter);
1444
1445         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1446
1447         qlcnic_napi_disable(adapter);
1448
1449         qlcnic_fw_destroy_ctx(adapter);
1450         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1451
1452         qlcnic_reset_rx_buffers_list(adapter);
1453         qlcnic_release_tx_buffers(adapter);
1454         spin_unlock(&adapter->tx_clean_lock);
1455 }
1456
1457 /* Usage: During suspend and firmware recovery module */
1458
1459 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1460 {
1461         rtnl_lock();
1462         if (netif_running(netdev))
1463                 __qlcnic_down(adapter, netdev);
1464         rtnl_unlock();
1465
1466 }
1467
1468 int
1469 qlcnic_attach(struct qlcnic_adapter *adapter)
1470 {
1471         struct net_device *netdev = adapter->netdev;
1472         struct pci_dev *pdev = adapter->pdev;
1473         int err;
1474
1475         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1476                 return 0;
1477
1478         err = qlcnic_napi_add(adapter, netdev);
1479         if (err)
1480                 return err;
1481
1482         err = qlcnic_alloc_sw_resources(adapter);
1483         if (err) {
1484                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1485                 goto err_out_napi_del;
1486         }
1487
1488         err = qlcnic_alloc_hw_resources(adapter);
1489         if (err) {
1490                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1491                 goto err_out_free_sw;
1492         }
1493
1494         err = qlcnic_request_irq(adapter);
1495         if (err) {
1496                 dev_err(&pdev->dev, "failed to setup interrupt\n");
1497                 goto err_out_free_hw;
1498         }
1499
1500         qlcnic_create_sysfs_entries(adapter);
1501
1502         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1503         return 0;
1504
1505 err_out_free_hw:
1506         qlcnic_free_hw_resources(adapter);
1507 err_out_free_sw:
1508         qlcnic_free_sw_resources(adapter);
1509 err_out_napi_del:
1510         qlcnic_napi_del(adapter);
1511         return err;
1512 }
1513
1514 void qlcnic_detach(struct qlcnic_adapter *adapter)
1515 {
1516         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1517                 return;
1518
1519         qlcnic_remove_sysfs_entries(adapter);
1520
1521         qlcnic_free_hw_resources(adapter);
1522         qlcnic_release_rx_buffers(adapter);
1523         qlcnic_free_irq(adapter);
1524         qlcnic_napi_del(adapter);
1525         qlcnic_free_sw_resources(adapter);
1526
1527         adapter->is_up = 0;
1528 }
1529
1530 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1531 {
1532         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1533         struct qlcnic_host_sds_ring *sds_ring;
1534         int ring;
1535
1536         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1537         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1538                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1539                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1540                         qlcnic_disable_int(sds_ring);
1541                 }
1542         }
1543
1544         qlcnic_fw_destroy_ctx(adapter);
1545
1546         qlcnic_detach(adapter);
1547
1548         adapter->ahw->diag_test = 0;
1549         adapter->max_sds_rings = max_sds_rings;
1550
1551         if (qlcnic_attach(adapter))
1552                 goto out;
1553
1554         if (netif_running(netdev))
1555                 __qlcnic_up(adapter, netdev);
1556 out:
1557         netif_device_attach(netdev);
1558 }
1559
1560 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
1561 {
1562         int err = 0;
1563         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
1564                                 GFP_KERNEL);
1565         if (!adapter->recv_ctx) {
1566                 err = -ENOMEM;
1567                 goto err_out;
1568         }
1569         /* Initialize interrupt coalesce parameters */
1570         adapter->ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1571         adapter->ahw->coal.rx_time_us = QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
1572         adapter->ahw->coal.rx_packets = QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
1573         /* clear stats */
1574         memset(&adapter->stats, 0, sizeof(adapter->stats));
1575 err_out:
1576         return err;
1577 }
1578
1579 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
1580 {
1581         kfree(adapter->recv_ctx);
1582         adapter->recv_ctx = NULL;
1583
1584         if (adapter->ahw->fw_dump.tmpl_hdr) {
1585                 vfree(adapter->ahw->fw_dump.tmpl_hdr);
1586                 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1587         }
1588
1589         kfree(adapter->ahw->reset.buff);
1590         adapter->ahw->fw_dump.tmpl_hdr = NULL;
1591 }
1592
1593 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1594 {
1595         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1596         struct qlcnic_host_sds_ring *sds_ring;
1597         struct qlcnic_host_rds_ring *rds_ring;
1598         int ring;
1599         int ret;
1600
1601         netif_device_detach(netdev);
1602
1603         if (netif_running(netdev))
1604                 __qlcnic_down(adapter, netdev);
1605
1606         qlcnic_detach(adapter);
1607
1608         adapter->max_sds_rings = 1;
1609         adapter->ahw->diag_test = test;
1610         adapter->ahw->linkup = 0;
1611
1612         ret = qlcnic_attach(adapter);
1613         if (ret) {
1614                 netif_device_attach(netdev);
1615                 return ret;
1616         }
1617
1618         ret = qlcnic_fw_create_ctx(adapter);
1619         if (ret) {
1620                 qlcnic_detach(adapter);
1621                 netif_device_attach(netdev);
1622                 return ret;
1623         }
1624
1625         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1626                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1627                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1628         }
1629
1630         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1631                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1632                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1633                         qlcnic_enable_int(sds_ring);
1634                 }
1635         }
1636
1637         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
1638                 adapter->ahw->loopback_state = 0;
1639                 qlcnic_linkevent_request(adapter, 1);
1640         }
1641
1642         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1643
1644         return 0;
1645 }
1646
1647 /* Reset context in hardware only */
1648 static int
1649 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1650 {
1651         struct net_device *netdev = adapter->netdev;
1652
1653         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1654                 return -EBUSY;
1655
1656         netif_device_detach(netdev);
1657
1658         qlcnic_down(adapter, netdev);
1659
1660         qlcnic_up(adapter, netdev);
1661
1662         netif_device_attach(netdev);
1663
1664         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1665         dev_err(&adapter->pdev->dev, "%s:\n", __func__);
1666         return 0;
1667 }
1668
1669 int
1670 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1671 {
1672         int err = 0;
1673         struct net_device *netdev = adapter->netdev;
1674
1675         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1676                 return -EBUSY;
1677
1678         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1679
1680                 netif_device_detach(netdev);
1681
1682                 if (netif_running(netdev))
1683                         __qlcnic_down(adapter, netdev);
1684
1685                 qlcnic_detach(adapter);
1686
1687                 if (netif_running(netdev)) {
1688                         err = qlcnic_attach(adapter);
1689                         if (!err) {
1690                                 __qlcnic_up(adapter, netdev);
1691                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1692                         }
1693                 }
1694
1695                 netif_device_attach(netdev);
1696         }
1697
1698         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1699         return err;
1700 }
1701
1702 int
1703 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
1704                     int pci_using_dac)
1705 {
1706         int err;
1707         struct pci_dev *pdev = adapter->pdev;
1708
1709         adapter->rx_csum = 1;
1710         adapter->ahw->mc_enabled = 0;
1711         adapter->ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
1712
1713         netdev->netdev_ops         = &qlcnic_netdev_ops;
1714         netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
1715
1716         qlcnic_change_mtu(netdev, netdev->mtu);
1717
1718         SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1719
1720         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
1721                              NETIF_F_IPV6_CSUM | NETIF_F_GRO |
1722                              NETIF_F_HW_VLAN_CTAG_RX);
1723         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1724                                   NETIF_F_IPV6_CSUM);
1725
1726         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
1727                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
1728                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
1729         }
1730
1731         if (pci_using_dac) {
1732                 netdev->features |= NETIF_F_HIGHDMA;
1733                 netdev->vlan_features |= NETIF_F_HIGHDMA;
1734         }
1735
1736         if (qlcnic_vlan_tx_check(adapter))
1737                 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
1738
1739         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1740                 netdev->features |= NETIF_F_LRO;
1741
1742         netdev->hw_features = netdev->features;
1743         netdev->irq = adapter->msix_entries[0].vector;
1744
1745         err = register_netdev(netdev);
1746         if (err) {
1747                 dev_err(&pdev->dev, "failed to register net device\n");
1748                 return err;
1749         }
1750
1751         return 0;
1752 }
1753
1754 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
1755 {
1756         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1757                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1758                 *pci_using_dac = 1;
1759         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1760                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1761                 *pci_using_dac = 0;
1762         else {
1763                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1764                 return -EIO;
1765         }
1766
1767         return 0;
1768 }
1769
1770 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
1771 {
1772         int ring;
1773         struct qlcnic_host_tx_ring *tx_ring;
1774
1775         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1776                 tx_ring = &adapter->tx_ring[ring];
1777                 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
1778                         vfree(tx_ring->cmd_buf_arr);
1779                         tx_ring->cmd_buf_arr = NULL;
1780                 }
1781         }
1782         if (adapter->tx_ring != NULL)
1783                 kfree(adapter->tx_ring);
1784 }
1785
1786 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
1787                           struct net_device *netdev)
1788 {
1789         int ring, vector, index;
1790         struct qlcnic_host_tx_ring *tx_ring;
1791         struct qlcnic_cmd_buffer *cmd_buf_arr;
1792
1793         tx_ring = kcalloc(adapter->max_drv_tx_rings,
1794                           sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
1795         if (tx_ring == NULL)
1796                 return -ENOMEM;
1797
1798         adapter->tx_ring = tx_ring;
1799
1800         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1801                 tx_ring = &adapter->tx_ring[ring];
1802                 tx_ring->num_desc = adapter->num_txd;
1803                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
1804                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
1805                 if (cmd_buf_arr == NULL) {
1806                         qlcnic_free_tx_rings(adapter);
1807                         return -ENOMEM;
1808                 }
1809                 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
1810                 tx_ring->cmd_buf_arr = cmd_buf_arr;
1811         }
1812
1813         if (qlcnic_83xx_check(adapter)) {
1814                 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1815                         tx_ring = &adapter->tx_ring[ring];
1816                         tx_ring->adapter = adapter;
1817                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
1818                                 index = adapter->max_sds_rings + ring;
1819                                 vector = adapter->msix_entries[index].vector;
1820                                 tx_ring->irq = vector;
1821                         }
1822                 }
1823         }
1824         return 0;
1825 }
1826
1827 static int
1828 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1829 {
1830         struct net_device *netdev = NULL;
1831         struct qlcnic_adapter *adapter = NULL;
1832         struct qlcnic_hardware_context *ahw;
1833         int err, pci_using_dac = -1;
1834         u32 capab2;
1835         char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
1836
1837         if (pdev->is_virtfn)
1838                 return -ENODEV;
1839
1840         err = pci_enable_device(pdev);
1841         if (err)
1842                 return err;
1843
1844         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1845                 err = -ENODEV;
1846                 goto err_out_disable_pdev;
1847         }
1848
1849         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
1850         if (err)
1851                 goto err_out_disable_pdev;
1852
1853         err = pci_request_regions(pdev, qlcnic_driver_name);
1854         if (err)
1855                 goto err_out_disable_pdev;
1856
1857         pci_set_master(pdev);
1858         pci_enable_pcie_error_reporting(pdev);
1859
1860         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
1861         if (!ahw)
1862                 goto err_out_free_res;
1863
1864         switch (ent->device) {
1865         case PCI_DEVICE_ID_QLOGIC_QLE824X:
1866                 ahw->hw_ops = &qlcnic_hw_ops;
1867                 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
1868                 break;
1869         case PCI_DEVICE_ID_QLOGIC_QLE834X:
1870                 qlcnic_83xx_register_map(ahw);
1871                 break;
1872         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
1873                 qlcnic_sriov_vf_register_map(ahw);
1874                 break;
1875         default:
1876                 goto err_out_free_hw_res;
1877         }
1878
1879         err = qlcnic_setup_pci_map(pdev, ahw);
1880         if (err)
1881                 goto err_out_free_hw_res;
1882
1883         netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1884         if (!netdev) {
1885                 err = -ENOMEM;
1886                 goto err_out_iounmap;
1887         }
1888
1889         SET_NETDEV_DEV(netdev, &pdev->dev);
1890
1891         adapter = netdev_priv(netdev);
1892         adapter->netdev  = netdev;
1893         adapter->pdev    = pdev;
1894         adapter->ahw = ahw;
1895
1896         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
1897         if (adapter->qlcnic_wq == NULL) {
1898                 dev_err(&pdev->dev, "Failed to create workqueue\n");
1899                 goto err_out_free_netdev;
1900         }
1901
1902         err = qlcnic_alloc_adapter_resources(adapter);
1903         if (err)
1904                 goto err_out_free_netdev;
1905
1906         adapter->dev_rst_time = jiffies;
1907         adapter->ahw->revision_id = pdev->revision;
1908         if (qlcnic_mac_learn == FDB_MAC_LEARN)
1909                 adapter->fdb_mac_learn = true;
1910         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
1911                 adapter->drv_mac_learn = true;
1912         adapter->max_drv_tx_rings = 1;
1913
1914         rwlock_init(&adapter->ahw->crb_lock);
1915         mutex_init(&adapter->ahw->mem_lock);
1916
1917         spin_lock_init(&adapter->tx_clean_lock);
1918         INIT_LIST_HEAD(&adapter->mac_list);
1919
1920         if (qlcnic_82xx_check(adapter)) {
1921                 qlcnic_check_vf(adapter, ent);
1922                 adapter->portnum = adapter->ahw->pci_func;
1923                 err = qlcnic_start_firmware(adapter);
1924                 if (err) {
1925                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
1926                         goto err_out_free_hw;
1927                 }
1928
1929                 err = qlcnic_setup_idc_param(adapter);
1930                 if (err)
1931                         goto err_out_free_hw;
1932
1933                 adapter->flags |= QLCNIC_NEED_FLR;
1934         } else if (qlcnic_83xx_check(adapter)) {
1935                 qlcnic_83xx_check_vf(adapter, ent);
1936                 adapter->portnum = adapter->ahw->pci_func;
1937                 err = qlcnic_83xx_init(adapter, pci_using_dac);
1938                 if (err) {
1939                         dev_err(&pdev->dev, "%s: failed\n", __func__);
1940                         goto err_out_free_hw;
1941                 }
1942                 if (qlcnic_sriov_vf_check(adapter))
1943                         return 0;
1944         } else {
1945                 dev_err(&pdev->dev,
1946                         "%s: failed. Please Reboot\n", __func__);
1947                 goto err_out_free_hw;
1948         }
1949
1950         if (qlcnic_read_mac_addr(adapter))
1951                 dev_warn(&pdev->dev, "failed to read mac addr\n");
1952
1953         if (adapter->portnum == 0) {
1954                 qlcnic_get_board_name(adapter, board_name);
1955
1956                 pr_info("%s: %s Board Chip rev 0x%x\n",
1957                         module_name(THIS_MODULE),
1958                         board_name, adapter->ahw->revision_id);
1959         }
1960
1961         if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
1962             !!qlcnic_use_msi)
1963                 dev_warn(&pdev->dev,
1964                          "83xx adapter do not support MSI interrupts\n");
1965
1966         err = qlcnic_setup_intr(adapter, 0);
1967         if (err) {
1968                 dev_err(&pdev->dev, "Failed to setup interrupt\n");
1969                 goto err_out_disable_msi;
1970         }
1971
1972         if (qlcnic_83xx_check(adapter)) {
1973                 err = qlcnic_83xx_setup_mbx_intr(adapter);
1974                 if (err)
1975                         goto err_out_disable_msi;
1976         }
1977
1978         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
1979         if (err)
1980                 goto err_out_disable_mbx_intr;
1981
1982         if (qlcnic_82xx_check(adapter)) {
1983                 if (ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1984                         capab2 = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
1985                         if (capab2 & QLCNIC_FW_CAPABILITY_2_OCBB)
1986                                 qlcnic_fw_cmd_set_drv_version(adapter);
1987                 }
1988         }
1989
1990         pci_set_drvdata(pdev, adapter);
1991
1992         if (qlcnic_82xx_check(adapter))
1993                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
1994                                      FW_POLL_DELAY);
1995
1996         switch (adapter->ahw->port_type) {
1997         case QLCNIC_GBE:
1998                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1999                                 adapter->netdev->name);
2000                 break;
2001         case QLCNIC_XGBE:
2002                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2003                                 adapter->netdev->name);
2004                 break;
2005         }
2006
2007         if (qlcnic_get_act_pci_func(adapter))
2008                 goto err_out_disable_mbx_intr;
2009
2010         if (adapter->drv_mac_learn)
2011                 qlcnic_alloc_lb_filters_mem(adapter);
2012
2013         qlcnic_add_sysfs(adapter);
2014
2015         return 0;
2016
2017 err_out_disable_mbx_intr:
2018         if (qlcnic_83xx_check(adapter))
2019                 qlcnic_83xx_free_mbx_intr(adapter);
2020
2021 err_out_disable_msi:
2022         qlcnic_teardown_intr(adapter);
2023         qlcnic_cancel_idc_work(adapter);
2024         qlcnic_clr_all_drv_state(adapter, 0);
2025
2026 err_out_free_hw:
2027         qlcnic_free_adapter_resources(adapter);
2028
2029 err_out_free_netdev:
2030         free_netdev(netdev);
2031
2032 err_out_iounmap:
2033         qlcnic_cleanup_pci_map(ahw);
2034
2035 err_out_free_hw_res:
2036         kfree(ahw);
2037
2038 err_out_free_res:
2039         pci_release_regions(pdev);
2040
2041 err_out_disable_pdev:
2042         pci_set_drvdata(pdev, NULL);
2043         pci_disable_device(pdev);
2044         return err;
2045 }
2046
2047 static void qlcnic_remove(struct pci_dev *pdev)
2048 {
2049         struct qlcnic_adapter *adapter;
2050         struct net_device *netdev;
2051         struct qlcnic_hardware_context *ahw;
2052
2053         adapter = pci_get_drvdata(pdev);
2054         if (adapter == NULL)
2055                 return;
2056
2057         netdev = adapter->netdev;
2058         qlcnic_sriov_pf_disable(adapter);
2059
2060         qlcnic_cancel_idc_work(adapter);
2061         ahw = adapter->ahw;
2062
2063         unregister_netdev(netdev);
2064         qlcnic_sriov_cleanup(adapter);
2065
2066         if (qlcnic_83xx_check(adapter)) {
2067                 qlcnic_83xx_free_mbx_intr(adapter);
2068                 qlcnic_83xx_register_nic_idc_func(adapter, 0);
2069                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2070         }
2071
2072         qlcnic_detach(adapter);
2073
2074         if (adapter->npars != NULL)
2075                 kfree(adapter->npars);
2076         if (adapter->eswitch != NULL)
2077                 kfree(adapter->eswitch);
2078
2079         if (qlcnic_82xx_check(adapter))
2080                 qlcnic_clr_all_drv_state(adapter, 0);
2081
2082         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2083
2084         qlcnic_free_lb_filters_mem(adapter);
2085
2086         qlcnic_teardown_intr(adapter);
2087
2088         qlcnic_remove_sysfs(adapter);
2089
2090         qlcnic_cleanup_pci_map(adapter->ahw);
2091
2092         qlcnic_release_firmware(adapter);
2093
2094         pci_disable_pcie_error_reporting(pdev);
2095         pci_release_regions(pdev);
2096         pci_disable_device(pdev);
2097         pci_set_drvdata(pdev, NULL);
2098
2099         if (adapter->qlcnic_wq) {
2100                 destroy_workqueue(adapter->qlcnic_wq);
2101                 adapter->qlcnic_wq = NULL;
2102         }
2103         qlcnic_free_adapter_resources(adapter);
2104         kfree(ahw);
2105         free_netdev(netdev);
2106 }
2107 static int __qlcnic_shutdown(struct pci_dev *pdev)
2108 {
2109         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2110         struct net_device *netdev = adapter->netdev;
2111         int retval;
2112
2113         netif_device_detach(netdev);
2114
2115         qlcnic_cancel_idc_work(adapter);
2116
2117         if (netif_running(netdev))
2118                 qlcnic_down(adapter, netdev);
2119
2120         qlcnic_sriov_cleanup(adapter);
2121         if (qlcnic_82xx_check(adapter))
2122                 qlcnic_clr_all_drv_state(adapter, 0);
2123
2124         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2125
2126         retval = pci_save_state(pdev);
2127         if (retval)
2128                 return retval;
2129         if (qlcnic_82xx_check(adapter)) {
2130                 if (qlcnic_wol_supported(adapter)) {
2131                         pci_enable_wake(pdev, PCI_D3cold, 1);
2132                         pci_enable_wake(pdev, PCI_D3hot, 1);
2133                 }
2134         }
2135
2136         return 0;
2137 }
2138
2139 static void qlcnic_shutdown(struct pci_dev *pdev)
2140 {
2141         if (__qlcnic_shutdown(pdev))
2142                 return;
2143
2144         pci_disable_device(pdev);
2145 }
2146
2147 #ifdef CONFIG_PM
2148 static int
2149 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2150 {
2151         int retval;
2152
2153         retval = __qlcnic_shutdown(pdev);
2154         if (retval)
2155                 return retval;
2156
2157         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2158         return 0;
2159 }
2160
2161 static int
2162 qlcnic_resume(struct pci_dev *pdev)
2163 {
2164         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2165         struct net_device *netdev = adapter->netdev;
2166         int err;
2167
2168         err = pci_enable_device(pdev);
2169         if (err)
2170                 return err;
2171
2172         pci_set_power_state(pdev, PCI_D0);
2173         pci_set_master(pdev);
2174         pci_restore_state(pdev);
2175
2176         err = qlcnic_start_firmware(adapter);
2177         if (err) {
2178                 dev_err(&pdev->dev, "failed to start firmware\n");
2179                 return err;
2180         }
2181
2182         if (netif_running(netdev)) {
2183                 err = qlcnic_up(adapter, netdev);
2184                 if (err)
2185                         goto done;
2186
2187                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2188         }
2189 done:
2190         netif_device_attach(netdev);
2191         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
2192         return 0;
2193 }
2194 #endif
2195
2196 static int qlcnic_open(struct net_device *netdev)
2197 {
2198         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2199         int err;
2200
2201         netif_carrier_off(netdev);
2202
2203         err = qlcnic_attach(adapter);
2204         if (err)
2205                 return err;
2206
2207         err = __qlcnic_up(adapter, netdev);
2208         if (err)
2209                 goto err_out;
2210
2211         netif_start_queue(netdev);
2212
2213         return 0;
2214
2215 err_out:
2216         qlcnic_detach(adapter);
2217         return err;
2218 }
2219
2220 /*
2221  * qlcnic_close - Disables a network interface entry point
2222  */
2223 static int qlcnic_close(struct net_device *netdev)
2224 {
2225         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2226
2227         __qlcnic_down(adapter, netdev);
2228
2229         return 0;
2230 }
2231
2232 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2233 {
2234         void *head;
2235         int i;
2236         struct net_device *netdev = adapter->netdev;
2237         u32 filter_size = 0;
2238         u16 act_pci_func = 0;
2239
2240         if (adapter->fhash.fmax && adapter->fhash.fhead)
2241                 return;
2242
2243         act_pci_func = adapter->ahw->act_pci_func;
2244         spin_lock_init(&adapter->mac_learn_lock);
2245         spin_lock_init(&adapter->rx_mac_learn_lock);
2246
2247         if (qlcnic_82xx_check(adapter)) {
2248                 filter_size = QLCNIC_LB_MAX_FILTERS;
2249                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2250         } else {
2251                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2252                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2253         }
2254
2255         head = kcalloc(adapter->fhash.fbucket_size,
2256                        sizeof(struct hlist_head), GFP_ATOMIC);
2257
2258         if (!head)
2259                 return;
2260
2261         adapter->fhash.fmax = (filter_size / act_pci_func);
2262         adapter->fhash.fhead = head;
2263
2264         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2265                     act_pci_func, adapter->fhash.fmax);
2266
2267         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2268                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2269
2270         adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2271
2272         head = kcalloc(adapter->rx_fhash.fbucket_size,
2273                        sizeof(struct hlist_head), GFP_ATOMIC);
2274
2275         if (!head)
2276                 return;
2277
2278         adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2279         adapter->rx_fhash.fhead = head;
2280
2281         for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2282                 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2283 }
2284
2285 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2286 {
2287         if (adapter->fhash.fmax && adapter->fhash.fhead)
2288                 kfree(adapter->fhash.fhead);
2289
2290         adapter->fhash.fhead = NULL;
2291         adapter->fhash.fmax = 0;
2292
2293         if (adapter->rx_fhash.fmax && adapter->rx_fhash.fhead)
2294                 kfree(adapter->rx_fhash.fhead);
2295
2296         adapter->rx_fhash.fmax = 0;
2297         adapter->rx_fhash.fhead = NULL;
2298 }
2299
2300 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2301 {
2302         struct net_device *netdev = adapter->netdev;
2303         u32 temp_state, temp_val, temp = 0;
2304         int rv = 0;
2305
2306         if (qlcnic_83xx_check(adapter))
2307                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2308
2309         if (qlcnic_82xx_check(adapter))
2310                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2311
2312         temp_state = qlcnic_get_temp_state(temp);
2313         temp_val = qlcnic_get_temp_val(temp);
2314
2315         if (temp_state == QLCNIC_TEMP_PANIC) {
2316                 dev_err(&netdev->dev,
2317                        "Device temperature %d degrees C exceeds"
2318                        " maximum allowed. Hardware has been shut down.\n",
2319                        temp_val);
2320                 rv = 1;
2321         } else if (temp_state == QLCNIC_TEMP_WARN) {
2322                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2323                         dev_err(&netdev->dev,
2324                                "Device temperature %d degrees C "
2325                                "exceeds operating range."
2326                                " Immediate action needed.\n",
2327                                temp_val);
2328                 }
2329         } else {
2330                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2331                         dev_info(&netdev->dev,
2332                                "Device temperature is now %d degrees C"
2333                                " in normal range.\n", temp_val);
2334                 }
2335         }
2336         adapter->ahw->temp = temp_state;
2337         return rv;
2338 }
2339
2340 static void qlcnic_tx_timeout(struct net_device *netdev)
2341 {
2342         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2343
2344         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2345                 return;
2346
2347         dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2348
2349         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
2350                 adapter->need_fw_reset = 1;
2351         else
2352                 adapter->ahw->reset_context = 1;
2353 }
2354
2355 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2356 {
2357         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2358         struct net_device_stats *stats = &netdev->stats;
2359
2360         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2361         stats->tx_packets = adapter->stats.xmitfinished;
2362         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2363         stats->tx_bytes = adapter->stats.txbytes;
2364         stats->rx_dropped = adapter->stats.rxdropped;
2365         stats->tx_dropped = adapter->stats.txdropped;
2366
2367         return stats;
2368 }
2369
2370 irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
2371 {
2372         u32 status;
2373
2374         status = readl(adapter->isr_int_vec);
2375
2376         if (!(status & adapter->ahw->int_vec_bit))
2377                 return IRQ_NONE;
2378
2379         /* check interrupt state machine, to be sure */
2380         status = readl(adapter->crb_int_state_reg);
2381         if (!ISR_LEGACY_INT_TRIGGERED(status))
2382                 return IRQ_NONE;
2383
2384         writel(0xffffffff, adapter->tgt_status_reg);
2385         /* read twice to ensure write is flushed */
2386         readl(adapter->isr_int_vec);
2387         readl(adapter->isr_int_vec);
2388
2389         return IRQ_HANDLED;
2390 }
2391
2392 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2393 {
2394         struct qlcnic_host_sds_ring *sds_ring = data;
2395         struct qlcnic_adapter *adapter = sds_ring->adapter;
2396
2397         if (adapter->flags & QLCNIC_MSIX_ENABLED)
2398                 goto done;
2399         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2400                 writel(0xffffffff, adapter->tgt_status_reg);
2401                 goto done;
2402         }
2403
2404         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2405                 return IRQ_NONE;
2406
2407 done:
2408         adapter->ahw->diag_cnt++;
2409         qlcnic_enable_int(sds_ring);
2410         return IRQ_HANDLED;
2411 }
2412
2413 static irqreturn_t qlcnic_intr(int irq, void *data)
2414 {
2415         struct qlcnic_host_sds_ring *sds_ring = data;
2416         struct qlcnic_adapter *adapter = sds_ring->adapter;
2417
2418         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2419                 return IRQ_NONE;
2420
2421         napi_schedule(&sds_ring->napi);
2422
2423         return IRQ_HANDLED;
2424 }
2425
2426 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2427 {
2428         struct qlcnic_host_sds_ring *sds_ring = data;
2429         struct qlcnic_adapter *adapter = sds_ring->adapter;
2430
2431         /* clear interrupt */
2432         writel(0xffffffff, adapter->tgt_status_reg);
2433
2434         napi_schedule(&sds_ring->napi);
2435         return IRQ_HANDLED;
2436 }
2437
2438 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2439 {
2440         struct qlcnic_host_sds_ring *sds_ring = data;
2441
2442         napi_schedule(&sds_ring->napi);
2443         return IRQ_HANDLED;
2444 }
2445
2446 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
2447 {
2448         struct qlcnic_host_tx_ring *tx_ring = data;
2449
2450         napi_schedule(&tx_ring->napi);
2451         return IRQ_HANDLED;
2452 }
2453
2454 #ifdef CONFIG_NET_POLL_CONTROLLER
2455 static void qlcnic_poll_controller(struct net_device *netdev)
2456 {
2457         int ring;
2458         struct qlcnic_host_sds_ring *sds_ring;
2459         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2460         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2461
2462         disable_irq(adapter->irq);
2463         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2464                 sds_ring = &recv_ctx->sds_rings[ring];
2465                 qlcnic_intr(adapter->irq, sds_ring);
2466         }
2467         enable_irq(adapter->irq);
2468 }
2469 #endif
2470
2471 static void
2472 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2473 {
2474         u32 val;
2475
2476         val = adapter->portnum & 0xf;
2477         val |= encoding << 7;
2478         val |= (jiffies - adapter->dev_rst_time) << 8;
2479
2480         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2481         adapter->dev_rst_time = jiffies;
2482 }
2483
2484 static int
2485 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2486 {
2487         u32  val;
2488
2489         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2490                         state != QLCNIC_DEV_NEED_QUISCENT);
2491
2492         if (qlcnic_api_lock(adapter))
2493                 return -EIO;
2494
2495         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2496
2497         if (state == QLCNIC_DEV_NEED_RESET)
2498                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2499         else if (state == QLCNIC_DEV_NEED_QUISCENT)
2500                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2501
2502         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2503
2504         qlcnic_api_unlock(adapter);
2505
2506         return 0;
2507 }
2508
2509 static int
2510 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2511 {
2512         u32  val;
2513
2514         if (qlcnic_api_lock(adapter))
2515                 return -EBUSY;
2516
2517         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2518         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2519         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2520
2521         qlcnic_api_unlock(adapter);
2522
2523         return 0;
2524 }
2525
2526 static void
2527 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2528 {
2529         u32  val;
2530
2531         if (qlcnic_api_lock(adapter))
2532                 goto err;
2533
2534         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2535         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2536         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2537
2538         if (failed) {
2539                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2540                                     QLCNIC_DEV_FAILED);
2541                 dev_info(&adapter->pdev->dev,
2542                                 "Device state set to Failed. Please Reboot\n");
2543         } else if (!(val & 0x11111111))
2544                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2545                                     QLCNIC_DEV_COLD);
2546
2547         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2548         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2549         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2550
2551         qlcnic_api_unlock(adapter);
2552 err:
2553         adapter->fw_fail_cnt = 0;
2554         adapter->flags &= ~QLCNIC_FW_HANG;
2555         clear_bit(__QLCNIC_START_FW, &adapter->state);
2556         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2557 }
2558
2559 /* Grab api lock, before checking state */
2560 static int
2561 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2562 {
2563         int act, state, active_mask;
2564         struct qlcnic_hardware_context *ahw = adapter->ahw;
2565
2566         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2567         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2568
2569         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
2570                 active_mask = (~(1 << (ahw->pci_func * 4)));
2571                 act = act & active_mask;
2572         }
2573
2574         if (((state & 0x11111111) == (act & 0x11111111)) ||
2575                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2576                 return 0;
2577         else
2578                 return 1;
2579 }
2580
2581 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2582 {
2583         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2584
2585         if (val != QLCNIC_DRV_IDC_VER) {
2586                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2587                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2588         }
2589
2590         return 0;
2591 }
2592
2593 static int
2594 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2595 {
2596         u32 val, prev_state;
2597         u8 dev_init_timeo = adapter->dev_init_timeo;
2598         u8 portnum = adapter->portnum;
2599         u8 ret;
2600
2601         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2602                 return 1;
2603
2604         if (qlcnic_api_lock(adapter))
2605                 return -1;
2606
2607         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2608         if (!(val & (1 << (portnum * 4)))) {
2609                 QLC_DEV_SET_REF_CNT(val, portnum);
2610                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2611         }
2612
2613         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2614         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2615
2616         switch (prev_state) {
2617         case QLCNIC_DEV_COLD:
2618                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2619                                     QLCNIC_DEV_INITIALIZING);
2620                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
2621                                     QLCNIC_DRV_IDC_VER);
2622                 qlcnic_idc_debug_info(adapter, 0);
2623                 qlcnic_api_unlock(adapter);
2624                 return 1;
2625
2626         case QLCNIC_DEV_READY:
2627                 ret = qlcnic_check_idc_ver(adapter);
2628                 qlcnic_api_unlock(adapter);
2629                 return ret;
2630
2631         case QLCNIC_DEV_NEED_RESET:
2632                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2633                 QLC_DEV_SET_RST_RDY(val, portnum);
2634                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2635                 break;
2636
2637         case QLCNIC_DEV_NEED_QUISCENT:
2638                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2639                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
2640                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2641                 break;
2642
2643         case QLCNIC_DEV_FAILED:
2644                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
2645                 qlcnic_api_unlock(adapter);
2646                 return -1;
2647
2648         case QLCNIC_DEV_INITIALIZING:
2649         case QLCNIC_DEV_QUISCENT:
2650                 break;
2651         }
2652
2653         qlcnic_api_unlock(adapter);
2654
2655         do {
2656                 msleep(1000);
2657                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2658
2659                 if (prev_state == QLCNIC_DEV_QUISCENT)
2660                         continue;
2661         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
2662
2663         if (!dev_init_timeo) {
2664                 dev_err(&adapter->pdev->dev,
2665                         "Waiting for device to initialize timeout\n");
2666                 return -1;
2667         }
2668
2669         if (qlcnic_api_lock(adapter))
2670                 return -1;
2671
2672         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2673         QLC_DEV_CLR_RST_QSCNT(val, portnum);
2674         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2675
2676         ret = qlcnic_check_idc_ver(adapter);
2677         qlcnic_api_unlock(adapter);
2678
2679         return ret;
2680 }
2681
2682 static void
2683 qlcnic_fwinit_work(struct work_struct *work)
2684 {
2685         struct qlcnic_adapter *adapter = container_of(work,
2686                         struct qlcnic_adapter, fw_work.work);
2687         u32 dev_state = 0xf;
2688         u32 val;
2689
2690         if (qlcnic_api_lock(adapter))
2691                 goto err_ret;
2692
2693         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2694         if (dev_state == QLCNIC_DEV_QUISCENT ||
2695             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2696                 qlcnic_api_unlock(adapter);
2697                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2698                                                 FW_POLL_DELAY * 2);
2699                 return;
2700         }
2701
2702         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
2703                 qlcnic_api_unlock(adapter);
2704                 goto wait_npar;
2705         }
2706
2707         if (dev_state == QLCNIC_DEV_INITIALIZING ||
2708             dev_state == QLCNIC_DEV_READY) {
2709                 dev_info(&adapter->pdev->dev, "Detected state change from "
2710                                 "DEV_NEED_RESET, skipping ack check\n");
2711                 goto skip_ack_check;
2712         }
2713
2714         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2715                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2716                                         adapter->reset_ack_timeo);
2717                 goto skip_ack_check;
2718         }
2719
2720         if (!qlcnic_check_drv_state(adapter)) {
2721 skip_ack_check:
2722                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2723
2724                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2725                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2726                                             QLCNIC_DEV_INITIALIZING);
2727                         set_bit(__QLCNIC_START_FW, &adapter->state);
2728                         QLCDB(adapter, DRV, "Restarting fw\n");
2729                         qlcnic_idc_debug_info(adapter, 0);
2730                         val = QLC_SHARED_REG_RD32(adapter,
2731                                                   QLCNIC_CRB_DRV_STATE);
2732                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2733                         QLC_SHARED_REG_WR32(adapter,
2734                                             QLCNIC_CRB_DRV_STATE, val);
2735                 }
2736
2737                 qlcnic_api_unlock(adapter);
2738
2739                 rtnl_lock();
2740                 if (adapter->ahw->fw_dump.enable &&
2741                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2742                         QLCDB(adapter, DRV, "Take FW dump\n");
2743                         qlcnic_dump_fw(adapter);
2744                         adapter->flags |= QLCNIC_FW_HANG;
2745                 }
2746                 rtnl_unlock();
2747
2748                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
2749                 if (!adapter->nic_ops->start_firmware(adapter)) {
2750                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2751                         adapter->fw_wait_cnt = 0;
2752                         return;
2753                 }
2754                 goto err_ret;
2755         }
2756
2757         qlcnic_api_unlock(adapter);
2758
2759 wait_npar:
2760         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2761         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
2762
2763         switch (dev_state) {
2764         case QLCNIC_DEV_READY:
2765                 if (!qlcnic_start_firmware(adapter)) {
2766                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2767                         adapter->fw_wait_cnt = 0;
2768                         return;
2769                 }
2770         case QLCNIC_DEV_FAILED:
2771                 break;
2772         default:
2773                 qlcnic_schedule_work(adapter,
2774                         qlcnic_fwinit_work, FW_POLL_DELAY);
2775                 return;
2776         }
2777
2778 err_ret:
2779         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2780                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
2781         netif_device_attach(adapter->netdev);
2782         qlcnic_clr_all_drv_state(adapter, 0);
2783 }
2784
2785 static void
2786 qlcnic_detach_work(struct work_struct *work)
2787 {
2788         struct qlcnic_adapter *adapter = container_of(work,
2789                         struct qlcnic_adapter, fw_work.work);
2790         struct net_device *netdev = adapter->netdev;
2791         u32 status;
2792
2793         netif_device_detach(netdev);
2794
2795         /* Dont grab rtnl lock during Quiscent mode */
2796         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2797                 if (netif_running(netdev))
2798                         __qlcnic_down(adapter, netdev);
2799         } else
2800                 qlcnic_down(adapter, netdev);
2801
2802         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2803
2804         if (status & QLCNIC_RCODE_FATAL_ERROR) {
2805                 dev_err(&adapter->pdev->dev,
2806                         "Detaching the device: peg halt status1=0x%x\n",
2807                                         status);
2808
2809                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
2810                         dev_err(&adapter->pdev->dev,
2811                         "On board active cooling fan failed. "
2812                                 "Device has been halted.\n");
2813                         dev_err(&adapter->pdev->dev,
2814                                 "Replace the adapter.\n");
2815                 }
2816
2817                 goto err_ret;
2818         }
2819
2820         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
2821                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
2822                         adapter->ahw->temp);
2823                 goto err_ret;
2824         }
2825
2826         /* Dont ack if this instance is the reset owner */
2827         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2828                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
2829                         dev_err(&adapter->pdev->dev,
2830                                 "Failed to set driver state,"
2831                                         "detaching the device.\n");
2832                         goto err_ret;
2833                 }
2834         }
2835
2836         adapter->fw_wait_cnt = 0;
2837
2838         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2839
2840         return;
2841
2842 err_ret:
2843         netif_device_attach(netdev);
2844         qlcnic_clr_all_drv_state(adapter, 1);
2845 }
2846
2847 /*Transit NPAR state to NON Operational */
2848 static void
2849 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
2850 {
2851         u32 state;
2852
2853         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2854         if (state == QLCNIC_DEV_NPAR_NON_OPER)
2855                 return;
2856
2857         if (qlcnic_api_lock(adapter))
2858                 return;
2859         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2860                             QLCNIC_DEV_NPAR_NON_OPER);
2861         qlcnic_api_unlock(adapter);
2862 }
2863
2864 void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter, u32 key)
2865 {
2866         u32 state, xg_val = 0, gb_val = 0;
2867
2868         qlcnic_xg_set_xg0_mask(xg_val);
2869         qlcnic_xg_set_xg1_mask(xg_val);
2870         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
2871         qlcnic_gb_set_gb0_mask(gb_val);
2872         qlcnic_gb_set_gb1_mask(gb_val);
2873         qlcnic_gb_set_gb2_mask(gb_val);
2874         qlcnic_gb_set_gb3_mask(gb_val);
2875         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
2876         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
2877                                 " on all ports\n");
2878         adapter->need_fw_reset = 1;
2879
2880         if (qlcnic_api_lock(adapter))
2881                 return;
2882
2883         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2884
2885         if (state == QLCNIC_DEV_READY) {
2886                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2887                                     QLCNIC_DEV_NEED_RESET);
2888                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
2889                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
2890                 qlcnic_idc_debug_info(adapter, 0);
2891         }
2892
2893         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2894                             QLCNIC_DEV_NPAR_NON_OPER);
2895         qlcnic_api_unlock(adapter);
2896 }
2897
2898 /* Transit to NPAR READY state from NPAR NOT READY state */
2899 static void
2900 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
2901 {
2902         if (qlcnic_api_lock(adapter))
2903                 return;
2904
2905         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2906                             QLCNIC_DEV_NPAR_OPER);
2907         QLCDB(adapter, DRV, "NPAR operational state set\n");
2908
2909         qlcnic_api_unlock(adapter);
2910 }
2911
2912 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2913                           work_func_t func, int delay)
2914 {
2915         if (test_bit(__QLCNIC_AER, &adapter->state))
2916                 return;
2917
2918         INIT_DELAYED_WORK(&adapter->fw_work, func);
2919         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
2920                            round_jiffies_relative(delay));
2921 }
2922
2923 static void
2924 qlcnic_attach_work(struct work_struct *work)
2925 {
2926         struct qlcnic_adapter *adapter = container_of(work,
2927                                 struct qlcnic_adapter, fw_work.work);
2928         struct net_device *netdev = adapter->netdev;
2929         u32 npar_state;
2930
2931         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
2932                 npar_state = QLC_SHARED_REG_RD32(adapter,
2933                                                  QLCNIC_CRB_DEV_NPAR_STATE);
2934                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
2935                         qlcnic_clr_all_drv_state(adapter, 0);
2936                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
2937                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
2938                                                         FW_POLL_DELAY);
2939                 else
2940                         goto attach;
2941                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
2942                 return;
2943         }
2944 attach:
2945         if (netif_running(netdev)) {
2946                 if (qlcnic_up(adapter, netdev))
2947                         goto done;
2948
2949                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2950         }
2951
2952 done:
2953         netif_device_attach(netdev);
2954         adapter->fw_fail_cnt = 0;
2955         adapter->flags &= ~QLCNIC_FW_HANG;
2956         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2957
2958         if (!qlcnic_clr_drv_state(adapter))
2959                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2960                                                         FW_POLL_DELAY);
2961 }
2962
2963 static int
2964 qlcnic_check_health(struct qlcnic_adapter *adapter)
2965 {
2966         u32 state = 0, heartbeat;
2967         u32 peg_status;
2968
2969         if (qlcnic_check_temp(adapter))
2970                 goto detach;
2971
2972         if (adapter->need_fw_reset)
2973                 qlcnic_dev_request_reset(adapter, 0);
2974
2975         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2976         if (state == QLCNIC_DEV_NEED_RESET) {
2977                 qlcnic_set_npar_non_operational(adapter);
2978                 adapter->need_fw_reset = 1;
2979         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
2980                 goto detach;
2981
2982         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
2983         if (heartbeat != adapter->heartbeat) {
2984                 adapter->heartbeat = heartbeat;
2985                 adapter->fw_fail_cnt = 0;
2986                 if (adapter->need_fw_reset)
2987                         goto detach;
2988
2989                 if (adapter->ahw->reset_context && qlcnic_auto_fw_reset) {
2990                         qlcnic_reset_hw_context(adapter);
2991                         adapter->netdev->trans_start = jiffies;
2992                 }
2993
2994                 return 0;
2995         }
2996
2997         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2998                 return 0;
2999
3000         adapter->flags |= QLCNIC_FW_HANG;
3001
3002         qlcnic_dev_request_reset(adapter, 0);
3003
3004         if (qlcnic_auto_fw_reset)
3005                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3006
3007         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3008         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3009         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3010                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3011                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3012                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3013                         "PEG_NET_4_PC: 0x%x\n",
3014                         peg_status,
3015                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3016                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c),
3017                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c),
3018                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c),
3019                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c),
3020                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c));
3021         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3022                 dev_err(&adapter->pdev->dev,
3023                         "Firmware aborted with error code 0x00006700. "
3024                                 "Device is being reset.\n");
3025 detach:
3026         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3027                 QLCNIC_DEV_NEED_RESET;
3028
3029         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3030                                                       &adapter->state)) {
3031
3032                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3033                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3034         }
3035
3036         return 1;
3037 }
3038
3039 static void
3040 qlcnic_fw_poll_work(struct work_struct *work)
3041 {
3042         struct qlcnic_adapter *adapter = container_of(work,
3043                                 struct qlcnic_adapter, fw_work.work);
3044
3045         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3046                 goto reschedule;
3047
3048
3049         if (qlcnic_check_health(adapter))
3050                 return;
3051
3052         if (adapter->fhash.fnum)
3053                 qlcnic_prune_lb_filters(adapter);
3054
3055 reschedule:
3056         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3057 }
3058
3059 static int qlcnic_is_first_func(struct pci_dev *pdev)
3060 {
3061         struct pci_dev *oth_pdev;
3062         int val = pdev->devfn;
3063
3064         while (val-- > 0) {
3065                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3066                         (pdev->bus), pdev->bus->number,
3067                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3068                 if (!oth_pdev)
3069                         continue;
3070
3071                 if (oth_pdev->current_state != PCI_D3cold) {
3072                         pci_dev_put(oth_pdev);
3073                         return 0;
3074                 }
3075                 pci_dev_put(oth_pdev);
3076         }
3077         return 1;
3078 }
3079
3080 static int qlcnic_attach_func(struct pci_dev *pdev)
3081 {
3082         int err, first_func;
3083         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3084         struct net_device *netdev = adapter->netdev;
3085
3086         pdev->error_state = pci_channel_io_normal;
3087
3088         err = pci_enable_device(pdev);
3089         if (err)
3090                 return err;
3091
3092         pci_set_power_state(pdev, PCI_D0);
3093         pci_set_master(pdev);
3094         pci_restore_state(pdev);
3095
3096         first_func = qlcnic_is_first_func(pdev);
3097
3098         if (qlcnic_api_lock(adapter))
3099                 return -EINVAL;
3100
3101         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3102                 adapter->need_fw_reset = 1;
3103                 set_bit(__QLCNIC_START_FW, &adapter->state);
3104                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3105                                     QLCNIC_DEV_INITIALIZING);
3106                 QLCDB(adapter, DRV, "Restarting fw\n");
3107         }
3108         qlcnic_api_unlock(adapter);
3109
3110         err = qlcnic_start_firmware(adapter);
3111         if (err)
3112                 return err;
3113
3114         qlcnic_clr_drv_state(adapter);
3115         kfree(adapter->msix_entries);
3116         adapter->msix_entries = NULL;
3117         err = qlcnic_setup_intr(adapter, 0);
3118
3119         if (err) {
3120                 kfree(adapter->msix_entries);
3121                 netdev_err(netdev, "failed to setup interrupt\n");
3122                 return err;
3123         }
3124
3125         if (qlcnic_83xx_check(adapter)) {
3126                 /* register for NIC IDC AEN Events */
3127                 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3128                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3129                 if (err) {
3130                         dev_err(&adapter->pdev->dev,
3131                                 "failed to setup mbx interrupt\n");
3132                         qlcnic_clr_all_drv_state(adapter, 1);
3133                         clear_bit(__QLCNIC_AER, &adapter->state);
3134                         goto done;
3135                 }
3136         }
3137
3138         if (netif_running(netdev)) {
3139                 err = qlcnic_attach(adapter);
3140                 if (err) {
3141                         qlcnic_clr_all_drv_state(adapter, 1);
3142                         clear_bit(__QLCNIC_AER, &adapter->state);
3143                         netif_device_attach(netdev);
3144                         return err;
3145                 }
3146
3147                 err = qlcnic_up(adapter, netdev);
3148                 if (err)
3149                         goto done;
3150
3151                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3152         }
3153  done:
3154         netif_device_attach(netdev);
3155         return err;
3156 }
3157
3158 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3159                                                 pci_channel_state_t state)
3160 {
3161         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3162         struct net_device *netdev = adapter->netdev;
3163
3164         if (state == pci_channel_io_perm_failure)
3165                 return PCI_ERS_RESULT_DISCONNECT;
3166
3167         if (state == pci_channel_io_normal)
3168                 return PCI_ERS_RESULT_RECOVERED;
3169
3170         set_bit(__QLCNIC_AER, &adapter->state);
3171         netif_device_detach(netdev);
3172
3173         cancel_delayed_work_sync(&adapter->fw_work);
3174
3175         if (netif_running(netdev))
3176                 qlcnic_down(adapter, netdev);
3177
3178         if (qlcnic_83xx_check(adapter)) {
3179                 qlcnic_83xx_free_mbx_intr(adapter);
3180                 qlcnic_83xx_register_nic_idc_func(adapter, 0);
3181                 cancel_delayed_work_sync(&adapter->idc_aen_work);
3182         }
3183
3184         qlcnic_detach(adapter);
3185         qlcnic_teardown_intr(adapter);
3186
3187         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3188
3189         pci_save_state(pdev);
3190         pci_disable_device(pdev);
3191
3192         return PCI_ERS_RESULT_NEED_RESET;
3193 }
3194
3195 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3196 {
3197         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3198                                 PCI_ERS_RESULT_RECOVERED;
3199 }
3200
3201 static void qlcnic_io_resume(struct pci_dev *pdev)
3202 {
3203         u32 state;
3204         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3205
3206         pci_cleanup_aer_uncorrect_error_status(pdev);
3207         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3208         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3209                                                             &adapter->state))
3210                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3211                                                 FW_POLL_DELAY);
3212 }
3213
3214 static int
3215 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3216 {
3217         int err;
3218
3219         err = qlcnic_can_start_firmware(adapter);
3220         if (err)
3221                 return err;
3222
3223         err = qlcnic_check_npar_opertional(adapter);
3224         if (err)
3225                 return err;
3226
3227         err = qlcnic_initialize_nic(adapter);
3228         if (err)
3229                 return err;
3230
3231         qlcnic_check_options(adapter);
3232
3233         err = qlcnic_set_eswitch_port_config(adapter);
3234         if (err)
3235                 return err;
3236
3237         adapter->need_fw_reset = 0;
3238
3239         return err;
3240 }
3241
3242 int qlcnic_validate_max_rss(u8 max_hw, u8 val)
3243 {
3244         u32 max_allowed;
3245
3246         if (max_hw > QLC_MAX_SDS_RINGS) {
3247                 max_hw = QLC_MAX_SDS_RINGS;
3248                 pr_info("max rss reset to %d\n", QLC_MAX_SDS_RINGS);
3249         }
3250
3251         max_allowed = rounddown_pow_of_two(min_t(int, max_hw,
3252                                                  num_online_cpus()));
3253         if ((val > max_allowed) || (val < 2) || !is_power_of_2(val)) {
3254                 pr_info("rss_ring valid range [2 - %x] in powers of 2\n",
3255                         max_allowed);
3256                 return -EINVAL;
3257         }
3258         return 0;
3259 }
3260
3261 int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data, size_t len)
3262 {
3263         int err;
3264         struct net_device *netdev = adapter->netdev;
3265
3266         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3267                 return -EBUSY;
3268
3269         netif_device_detach(netdev);
3270         if (netif_running(netdev))
3271                 __qlcnic_down(adapter, netdev);
3272
3273         qlcnic_detach(adapter);
3274
3275         if (qlcnic_83xx_check(adapter))
3276                 qlcnic_83xx_free_mbx_intr(adapter);
3277
3278         qlcnic_teardown_intr(adapter);
3279         err = qlcnic_setup_intr(adapter, data);
3280         if (err) {
3281                 kfree(adapter->msix_entries);
3282                 netdev_err(netdev, "failed to setup interrupt\n");
3283                 return err;
3284         }
3285
3286         if (qlcnic_83xx_check(adapter)) {
3287                 /* register for NIC IDC AEN Events */
3288                 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3289                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3290                 if (err) {
3291                         dev_err(&adapter->pdev->dev,
3292                                 "failed to setup mbx interrupt\n");
3293                         goto done;
3294                 }
3295         }
3296
3297         if (netif_running(netdev)) {
3298                 err = qlcnic_attach(adapter);
3299                 if (err)
3300                         goto done;
3301                 err = __qlcnic_up(adapter, netdev);
3302                 if (err)
3303                         goto done;
3304                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3305         }
3306         err = len;
3307  done:
3308         netif_device_attach(netdev);
3309         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3310         return err;
3311 }
3312
3313 #ifdef CONFIG_INET
3314
3315 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
3316
3317 static void
3318 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
3319                         struct net_device *dev, unsigned long event)
3320 {
3321         struct in_device *indev;
3322
3323         indev = in_dev_get(dev);
3324         if (!indev)
3325                 return;
3326
3327         for_ifa(indev) {
3328                 switch (event) {
3329                 case NETDEV_UP:
3330                         qlcnic_config_ipaddr(adapter,
3331                                         ifa->ifa_address, QLCNIC_IP_UP);
3332                         break;
3333                 case NETDEV_DOWN:
3334                         qlcnic_config_ipaddr(adapter,
3335                                         ifa->ifa_address, QLCNIC_IP_DOWN);
3336                         break;
3337                 default:
3338                         break;
3339                 }
3340         } endfor_ifa(indev);
3341
3342         in_dev_put(indev);
3343 }
3344
3345 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
3346 {
3347         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3348         struct net_device *dev;
3349         u16 vid;
3350
3351         qlcnic_config_indev_addr(adapter, netdev, event);
3352
3353         rcu_read_lock();
3354         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
3355                 dev = __vlan_find_dev_deep(netdev, htons(ETH_P_8021Q), vid);
3356                 if (!dev)
3357                         continue;
3358                 qlcnic_config_indev_addr(adapter, dev, event);
3359         }
3360         rcu_read_unlock();
3361 }
3362
3363 static int qlcnic_netdev_event(struct notifier_block *this,
3364                                  unsigned long event, void *ptr)
3365 {
3366         struct qlcnic_adapter *adapter;
3367         struct net_device *dev = (struct net_device *)ptr;
3368
3369 recheck:
3370         if (dev == NULL)
3371                 goto done;
3372
3373         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3374                 dev = vlan_dev_real_dev(dev);
3375                 goto recheck;
3376         }
3377
3378         if (!is_qlcnic_netdev(dev))
3379                 goto done;
3380
3381         adapter = netdev_priv(dev);
3382
3383         if (!adapter)
3384                 goto done;
3385
3386         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3387                 goto done;
3388
3389         qlcnic_config_indev_addr(adapter, dev, event);
3390 done:
3391         return NOTIFY_DONE;
3392 }
3393
3394 static int
3395 qlcnic_inetaddr_event(struct notifier_block *this,
3396                 unsigned long event, void *ptr)
3397 {
3398         struct qlcnic_adapter *adapter;
3399         struct net_device *dev;
3400
3401         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3402
3403         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3404
3405 recheck:
3406         if (dev == NULL)
3407                 goto done;
3408
3409         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3410                 dev = vlan_dev_real_dev(dev);
3411                 goto recheck;
3412         }
3413
3414         if (!is_qlcnic_netdev(dev))
3415                 goto done;
3416
3417         adapter = netdev_priv(dev);
3418
3419         if (!adapter)
3420                 goto done;
3421
3422         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3423                 goto done;
3424
3425         switch (event) {
3426         case NETDEV_UP:
3427                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
3428
3429                 break;
3430         case NETDEV_DOWN:
3431                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
3432
3433                 break;
3434         default:
3435                 break;
3436         }
3437
3438 done:
3439         return NOTIFY_DONE;
3440 }
3441
3442 static struct notifier_block    qlcnic_netdev_cb = {
3443         .notifier_call = qlcnic_netdev_event,
3444 };
3445
3446 static struct notifier_block qlcnic_inetaddr_cb = {
3447         .notifier_call = qlcnic_inetaddr_event,
3448 };
3449 #else
3450 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
3451 { }
3452 #endif
3453 static const struct pci_error_handlers qlcnic_err_handler = {
3454         .error_detected = qlcnic_io_error_detected,
3455         .slot_reset = qlcnic_io_slot_reset,
3456         .resume = qlcnic_io_resume,
3457 };
3458
3459 static struct pci_driver qlcnic_driver = {
3460         .name = qlcnic_driver_name,
3461         .id_table = qlcnic_pci_tbl,
3462         .probe = qlcnic_probe,
3463         .remove = qlcnic_remove,
3464 #ifdef CONFIG_PM
3465         .suspend = qlcnic_suspend,
3466         .resume = qlcnic_resume,
3467 #endif
3468         .shutdown = qlcnic_shutdown,
3469         .err_handler = &qlcnic_err_handler,
3470 #ifdef CONFIG_QLCNIC_SRIOV
3471         .sriov_configure = qlcnic_pci_sriov_configure,
3472 #endif
3473
3474 };
3475
3476 static int __init qlcnic_init_module(void)
3477 {
3478         int ret;
3479
3480         printk(KERN_INFO "%s\n", qlcnic_driver_string);
3481
3482 #ifdef CONFIG_INET
3483         register_netdevice_notifier(&qlcnic_netdev_cb);
3484         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
3485 #endif
3486
3487         ret = pci_register_driver(&qlcnic_driver);
3488         if (ret) {
3489 #ifdef CONFIG_INET
3490                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3491                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3492 #endif
3493         }
3494
3495         return ret;
3496 }
3497
3498 module_init(qlcnic_init_module);
3499
3500 static void __exit qlcnic_exit_module(void)
3501 {
3502         pci_unregister_driver(&qlcnic_driver);
3503
3504 #ifdef CONFIG_INET
3505         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3506         unregister_netdevice_notifier(&qlcnic_netdev_cb);
3507 #endif
3508 }
3509
3510 module_exit(qlcnic_exit_module);