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 *, u16);
  90 static int qlcnic_vlan_rx_del(struct net_device *, 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 };
 345
 346 static const struct net_device_ops qlcnic_netdev_failed_ops = {
 347         .ndo_open          = qlcnic_open,
 348 };
 349
 350 static struct qlcnic_nic_template qlcnic_ops = {
 351         .config_bridged_mode    = qlcnic_config_bridged_mode,
 352         .config_led             = qlcnic_82xx_config_led,
 353         .start_firmware         = qlcnic_82xx_start_firmware,
 354         .request_reset          = qlcnic_82xx_dev_request_reset,
 355         .cancel_idc_work        = qlcnic_82xx_cancel_idc_work,
 356         .napi_add               = qlcnic_82xx_napi_add,
 357         .napi_del               = qlcnic_82xx_napi_del,
 358         .config_ipaddr          = qlcnic_82xx_config_ipaddr,
 359         .clear_legacy_intr      = qlcnic_82xx_clear_legacy_intr,
 360 };
 361
 362 struct qlcnic_nic_template qlcnic_vf_ops = {
 363         .config_bridged_mode    = qlcnicvf_config_bridged_mode,
 364         .config_led             = qlcnicvf_config_led,
 365         .start_firmware         = qlcnicvf_start_firmware
 366 };
 367
 368 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
 369         .read_crb                       = qlcnic_82xx_read_crb,
 370         .write_crb                      = qlcnic_82xx_write_crb,
 371         .read_reg                       = qlcnic_82xx_hw_read_wx_2M,
 372         .write_reg                      = qlcnic_82xx_hw_write_wx_2M,
 373         .get_mac_address                = qlcnic_82xx_get_mac_address,
 374         .setup_intr                     = qlcnic_82xx_setup_intr,
 375         .alloc_mbx_args                 = qlcnic_82xx_alloc_mbx_args,
 376         .mbx_cmd                        = qlcnic_82xx_issue_cmd,
 377         .get_func_no                    = qlcnic_82xx_get_func_no,
 378         .api_lock                       = qlcnic_82xx_api_lock,
 379         .api_unlock                     = qlcnic_82xx_api_unlock,
 380         .add_sysfs                      = qlcnic_82xx_add_sysfs,
 381         .remove_sysfs                   = qlcnic_82xx_remove_sysfs,
 382         .process_lb_rcv_ring_diag       = qlcnic_82xx_process_rcv_ring_diag,
 383         .create_rx_ctx                  = qlcnic_82xx_fw_cmd_create_rx_ctx,
 384         .create_tx_ctx                  = qlcnic_82xx_fw_cmd_create_tx_ctx,
 385         .del_rx_ctx                     = qlcnic_82xx_fw_cmd_del_rx_ctx,
 386         .del_tx_ctx                     = qlcnic_82xx_fw_cmd_del_tx_ctx,
 387         .setup_link_event               = qlcnic_82xx_linkevent_request,
 388         .get_nic_info                   = qlcnic_82xx_get_nic_info,
 389         .get_pci_info                   = qlcnic_82xx_get_pci_info,
 390         .set_nic_info                   = qlcnic_82xx_set_nic_info,
 391         .change_macvlan                 = qlcnic_82xx_sre_macaddr_change,
 392         .napi_enable                    = qlcnic_82xx_napi_enable,
 393         .napi_disable                   = qlcnic_82xx_napi_disable,
 394         .config_intr_coal               = qlcnic_82xx_config_intr_coalesce,
 395         .config_rss                     = qlcnic_82xx_config_rss,
 396         .config_hw_lro                  = qlcnic_82xx_config_hw_lro,
 397         .config_loopback                = qlcnic_82xx_set_lb_mode,
 398         .clear_loopback                 = qlcnic_82xx_clear_lb_mode,
 399         .config_promisc_mode            = qlcnic_82xx_nic_set_promisc,
 400         .change_l2_filter               = qlcnic_82xx_change_filter,
 401         .get_board_info                 = qlcnic_82xx_get_board_info,
 402 };
 403
 404 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 405 {
 406         struct pci_dev *pdev = adapter->pdev;
 407         int err = -1, i;
 408         int max_tx_rings, tx_vector;
 409
 410         if (adapter->flags & QLCNIC_TX_INTR_SHARED) {
 411                 max_tx_rings = 0;
 412                 tx_vector = 0;
 413         } else {
 414                 max_tx_rings = adapter->max_drv_tx_rings;
 415                 tx_vector = 1;
 416         }
 417
 418         if (!adapter->msix_entries) {
 419                 adapter->msix_entries = kcalloc(num_msix,
 420                                                 sizeof(struct msix_entry),
 421                                                 GFP_KERNEL);
 422                 if (!adapter->msix_entries)
 423                         return -ENOMEM;
 424         }
 425
 426         adapter->max_sds_rings = 1;
 427         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 428
 429         if (adapter->ahw->msix_supported) {
 430  enable_msix:
 431                 for (i = 0; i < num_msix; i++)
 432                         adapter->msix_entries[i].entry = i;
 433                 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
 434                 if (err == 0) {
 435                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 436                         if (qlcnic_83xx_check(adapter)) {
 437                                 adapter->ahw->num_msix = num_msix;
 438                                 /* subtract mail box and tx ring vectors */
 439                                 adapter->max_sds_rings = num_msix -
 440                                                          max_tx_rings - 1;
 441                         } else {
 442                                 adapter->max_sds_rings = num_msix;
 443                         }
 444                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 445                         return err;
 446                 } else if (err > 0) {
 447                         dev_info(&pdev->dev,
 448                                  "Unable to allocate %d MSI-X interrupt vectors\n",
 449                                  num_msix);
 450                         if (qlcnic_83xx_check(adapter)) {
 451                                 if (err < (QLC_83XX_MINIMUM_VECTOR - tx_vector))
 452                                         return err;
 453                                 err -= (max_tx_rings + 1);
 454                                 num_msix = rounddown_pow_of_two(err);
 455                                 num_msix += (max_tx_rings + 1);
 456                         } else {
 457                                 num_msix = rounddown_pow_of_two(err);
 458                         }
 459
 460                         if (num_msix) {
 461                                 dev_info(&pdev->dev,
 462                                          "Trying to allocate %d MSI-X interrupt vectors\n",
 463                                          num_msix);
 464                                 goto enable_msix;
 465                         }
 466                 } else {
 467                         dev_info(&pdev->dev,
 468                                  "Unable to allocate %d MSI-X interrupt vectors\n",
 469                                  num_msix);
 470                 }
 471         }
 472
 473         return err;
 474 }
 475
 476 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
 477 {
 478         int err = 0;
 479         u32 offset, mask_reg;
 480         const struct qlcnic_legacy_intr_set *legacy_intrp;
 481         struct qlcnic_hardware_context *ahw = adapter->ahw;
 482         struct pci_dev *pdev = adapter->pdev;
 483
 484         if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
 485                 adapter->flags |= QLCNIC_MSI_ENABLED;
 486                 offset = msi_tgt_status[adapter->ahw->pci_func];
 487                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
 488                                                             offset);
 489                 dev_info(&pdev->dev, "using msi interrupts\n");
 490                 adapter->msix_entries[0].vector = pdev->irq;
 491                 return err;
 492         }
 493         if (qlcnic_use_msi || qlcnic_use_msi_x)
 494                 return -EOPNOTSUPP;
 495
 496         legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
 497         adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
 498         offset = legacy_intrp->tgt_status_reg;
 499         adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
 500         mask_reg = legacy_intrp->tgt_mask_reg;
 501         adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
 502         adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
 503         adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
 504         dev_info(&pdev->dev, "using legacy interrupts\n");
 505         adapter->msix_entries[0].vector = pdev->irq;
 506         return err;
 507 }
 508
 509 int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter, u8 num_intr)
 510 {
 511         int num_msix, err = 0;
 512
 513         if (!num_intr)
 514                 num_intr = QLCNIC_DEF_NUM_STS_DESC_RINGS;
 515
 516         if (adapter->ahw->msix_supported)
 517                 num_msix = rounddown_pow_of_two(min_t(int, num_online_cpus(),
 518                                                 num_intr));
 519         else
 520                 num_msix = 1;
 521
 522         err = qlcnic_enable_msix(adapter, num_msix);
 523         if (err == -ENOMEM || !err)
 524                 return err;
 525
 526         err = qlcnic_enable_msi_legacy(adapter);
 527         if (!err)
 528                 return err;
 529
 530         return -EIO;
 531 }
 532
 533 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 534 {
 535         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 536                 pci_disable_msix(adapter->pdev);
 537         if (adapter->flags & QLCNIC_MSI_ENABLED)
 538                 pci_disable_msi(adapter->pdev);
 539
 540         kfree(adapter->msix_entries);
 541         adapter->msix_entries = NULL;
 542
 543         if (adapter->ahw->intr_tbl) {
 544                 vfree(adapter->ahw->intr_tbl);
 545                 adapter->ahw->intr_tbl = NULL;
 546         }
 547 }
 548
 549 static void
 550 qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter)
 551 {
 552         if (adapter->ahw->pci_base0 != NULL)
 553                 iounmap(adapter->ahw->pci_base0);
 554 }
 555
 556 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
 557 {
 558         struct qlcnic_pci_info *pci_info;
 559         int ret;
 560
 561         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 562                 switch (adapter->ahw->port_type) {
 563                 case QLCNIC_GBE:
 564                         adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_GBE_PORTS;
 565                         break;
 566                 case QLCNIC_XGBE:
 567                         adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_XG_PORTS;
 568                         break;
 569                 }
 570                 return 0;
 571         }
 572
 573         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
 574                 return 0;
 575
 576         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 577         if (!pci_info)
 578                 return -ENOMEM;
 579
 580         ret = qlcnic_get_pci_info(adapter, pci_info);
 581         kfree(pci_info);
 582         return ret;
 583 }
 584
 585 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 586 {
 587         struct qlcnic_pci_info *pci_info;
 588         int i, ret = 0, j = 0;
 589         u16 act_pci_func;
 590         u8 pfn;
 591
 592         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 593         if (!pci_info)
 594                 return -ENOMEM;
 595
 596         ret = qlcnic_get_pci_info(adapter, pci_info);
 597         if (ret)
 598                 goto err_pci_info;
 599
 600         act_pci_func = adapter->ahw->act_pci_func;
 601
 602         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
 603                                  act_pci_func, GFP_KERNEL);
 604         if (!adapter->npars) {
 605                 ret = -ENOMEM;
 606                 goto err_pci_info;
 607         }
 608
 609         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
 610                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
 611         if (!adapter->eswitch) {
 612                 ret = -ENOMEM;
 613                 goto err_npars;
 614         }
 615
 616         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 617                 pfn = pci_info[i].id;
 618
 619                 if (pfn >= QLCNIC_MAX_PCI_FUNC) {
 620                         ret = QL_STATUS_INVALID_PARAM;
 621                         goto err_eswitch;
 622                 }
 623
 624                 if (!pci_info[i].active ||
 625                     (pci_info[i].type != QLCNIC_TYPE_NIC))
 626                         continue;
 627
 628                 adapter->npars[j].pci_func = pfn;
 629                 adapter->npars[j].active = (u8)pci_info[i].active;
 630                 adapter->npars[j].type = (u8)pci_info[i].type;
 631                 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
 632                 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
 633                 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
 634                 j++;
 635         }
 636
 637         for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++) {
 638                 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
 639                 if (qlcnic_83xx_check(adapter))
 640                         qlcnic_enable_eswitch(adapter, i, 1);
 641         }
 642
 643         kfree(pci_info);
 644         return 0;
 645
 646 err_eswitch:
 647         kfree(adapter->eswitch);
 648         adapter->eswitch = NULL;
 649 err_npars:
 650         kfree(adapter->npars);
 651         adapter->npars = NULL;
 652 err_pci_info:
 653         kfree(pci_info);
 654
 655         return ret;
 656 }
 657
 658 static int
 659 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
 660 {
 661         u8 id;
 662         int i, ret = 1;
 663         u32 data = QLCNIC_MGMT_FUNC;
 664         struct qlcnic_hardware_context *ahw = adapter->ahw;
 665
 666         ret = qlcnic_api_lock(adapter);
 667         if (ret)
 668                 goto err_lock;
 669
 670         if (qlcnic_config_npars) {
 671                 for (i = 0; i < ahw->act_pci_func; i++) {
 672                         id = adapter->npars[i].pci_func;
 673                         if (id == ahw->pci_func)
 674                                 continue;
 675                         data |= (qlcnic_config_npars &
 676                                         QLC_DEV_SET_DRV(0xf, id));
 677                 }
 678         } else {
 679                 data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 680                 data = (data & ~QLC_DEV_SET_DRV(0xf, ahw->pci_func)) |
 681                         (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
 682                                          ahw->pci_func));
 683         }
 684         QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
 685         qlcnic_api_unlock(adapter);
 686 err_lock:
 687         return ret;
 688 }
 689
 690 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
 691                             const struct pci_device_id *ent)
 692 {
 693         u32 op_mode, priv_level;
 694
 695         /* Determine FW API version */
 696         adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
 697                                                            QLCNIC_FW_API);
 698
 699         /* Find PCI function number */
 700         qlcnic_get_func_no(adapter);
 701
 702         /* Determine function privilege level */
 703         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 704         if (op_mode == QLC_DEV_DRV_DEFAULT)
 705                 priv_level = QLCNIC_MGMT_FUNC;
 706         else
 707                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
 708
 709         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
 710                 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
 711                 dev_info(&adapter->pdev->dev,
 712                         "HAL Version: %d Non Privileged function\n",
 713                          adapter->ahw->fw_hal_version);
 714                 adapter->nic_ops = &qlcnic_vf_ops;
 715         } else
 716                 adapter->nic_ops = &qlcnic_ops;
 717 }
 718
 719 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
 720 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
 721 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
 722 {
 723         switch (dev_id) {
 724         case PCI_DEVICE_ID_QLOGIC_QLE824X:
 725                 *bar = QLCNIC_82XX_BAR0_LENGTH;
 726                 break;
 727         case PCI_DEVICE_ID_QLOGIC_QLE834X:
 728         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
 729                 *bar = QLCNIC_83XX_BAR0_LENGTH;
 730                 break;
 731         default:
 732                 *bar = 0;
 733         }
 734 }
 735
 736 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
 737                                 struct qlcnic_hardware_context *ahw)
 738 {
 739         u32 offset;
 740         void __iomem *mem_ptr0 = NULL;
 741         unsigned long mem_len, pci_len0 = 0, bar0_len;
 742
 743         /* remap phys address */
 744         mem_len = pci_resource_len(pdev, 0);
 745
 746         qlcnic_get_bar_length(pdev->device, &bar0_len);
 747         if (mem_len >= bar0_len) {
 748
 749                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
 750                 if (mem_ptr0 == NULL) {
 751                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
 752                         return -EIO;
 753                 }
 754                 pci_len0 = mem_len;
 755         } else {
 756                 return -EIO;
 757         }
 758
 759         dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
 760
 761         ahw->pci_base0 = mem_ptr0;
 762         ahw->pci_len0 = pci_len0;
 763         offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
 764         qlcnic_get_ioaddr(ahw, offset);
 765
 766         return 0;
 767 }
 768
 769 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
 770 {
 771         struct pci_dev *pdev = adapter->pdev;
 772         int i, found = 0;
 773
 774         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
 775                 if (qlcnic_boards[i].vendor == pdev->vendor &&
 776                         qlcnic_boards[i].device == pdev->device &&
 777                         qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
 778                         qlcnic_boards[i].sub_device == pdev->subsystem_device) {
 779                                 sprintf(name, "%pM: %s" ,
 780                                         adapter->mac_addr,
 781                                         qlcnic_boards[i].short_name);
 782                                 found = 1;
 783                                 break;
 784                 }
 785
 786         }
 787
 788         if (!found)
 789                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
 790 }
 791
 792 static void
 793 qlcnic_check_options(struct qlcnic_adapter *adapter)
 794 {
 795         int err;
 796         u32 fw_major, fw_minor, fw_build, prev_fw_version;
 797         struct pci_dev *pdev = adapter->pdev;
 798         struct qlcnic_hardware_context *ahw = adapter->ahw;
 799         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
 800
 801         prev_fw_version = adapter->fw_version;
 802
 803         fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
 804         fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
 805         fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
 806
 807         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
 808
 809         err = qlcnic_get_board_info(adapter);
 810         if (err) {
 811                 dev_err(&pdev->dev, "Error getting board config info.\n");
 812                 return;
 813         }
 814         if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
 815                 if (fw_dump->tmpl_hdr == NULL ||
 816                                 adapter->fw_version > prev_fw_version) {
 817                         if (fw_dump->tmpl_hdr)
 818                                 vfree(fw_dump->tmpl_hdr);
 819                         if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
 820                                 dev_info(&pdev->dev,
 821                                         "Supports FW dump capability\n");
 822                 }
 823         }
 824
 825         dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
 826                  QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
 827
 828         if (adapter->ahw->port_type == QLCNIC_XGBE) {
 829                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 830                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
 831                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
 832                 } else {
 833                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
 834                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
 835                 }
 836
 837                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 838                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 839
 840         } else if (adapter->ahw->port_type == QLCNIC_GBE) {
 841                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
 842                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 843                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 844                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
 845         }
 846
 847         adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
 848
 849         adapter->num_txd = MAX_CMD_DESCRIPTORS;
 850
 851         adapter->max_rds_rings = MAX_RDS_RINGS;
 852 }
 853
 854 static int
 855 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
 856 {
 857         int err;
 858         struct qlcnic_info nic_info;
 859
 860         memset(&nic_info, 0, sizeof(struct qlcnic_info));
 861         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
 862         if (err)
 863                 return err;
 864
 865         adapter->ahw->physical_port = (u8)nic_info.phys_port;
 866         adapter->ahw->switch_mode = nic_info.switch_mode;
 867         adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
 868         adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
 869         adapter->ahw->capabilities = nic_info.capabilities;
 870
 871         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
 872                 u32 temp;
 873                 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
 874                 adapter->ahw->capabilities2 = temp;
 875         }
 876         adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
 877         adapter->ahw->max_mtu = nic_info.max_mtu;
 878
 879         /* Disable NPAR for 83XX */
 880         if (qlcnic_83xx_check(adapter))
 881                 return err;
 882
 883         if (adapter->ahw->capabilities & BIT_6)
 884                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
 885         else
 886                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
 887
 888         return err;
 889 }
 890
 891 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
 892                             struct qlcnic_esw_func_cfg *esw_cfg)
 893 {
 894         if (esw_cfg->discard_tagged)
 895                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
 896         else
 897                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
 898
 899         if (esw_cfg->vlan_id)
 900                 adapter->pvid = esw_cfg->vlan_id;
 901         else
 902                 adapter->pvid = 0;
 903 }
 904
 905 static int
 906 qlcnic_vlan_rx_add(struct net_device *netdev, u16 vid)
 907 {
 908         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 909         set_bit(vid, adapter->vlans);
 910         return 0;
 911 }
 912
 913 static int
 914 qlcnic_vlan_rx_del(struct net_device *netdev, u16 vid)
 915 {
 916         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 917
 918         qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
 919         clear_bit(vid, adapter->vlans);
 920         return 0;
 921 }
 922
 923 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
 924                                       struct qlcnic_esw_func_cfg *esw_cfg)
 925 {
 926         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
 927                                 QLCNIC_PROMISC_DISABLED);
 928
 929         if (esw_cfg->mac_anti_spoof)
 930                 adapter->flags |= QLCNIC_MACSPOOF;
 931
 932         if (!esw_cfg->mac_override)
 933                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
 934
 935         if (!esw_cfg->promisc_mode)
 936                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
 937
 938         qlcnic_set_netdev_features(adapter, esw_cfg);
 939 }
 940
 941 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
 942 {
 943         struct qlcnic_esw_func_cfg esw_cfg;
 944
 945         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
 946                 return 0;
 947
 948         esw_cfg.pci_func = adapter->ahw->pci_func;
 949         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
 950                         return -EIO;
 951         qlcnic_set_vlan_config(adapter, &esw_cfg);
 952         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
 953
 954         return 0;
 955 }
 956
 957 static void
 958 qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
 959                 struct qlcnic_esw_func_cfg *esw_cfg)
 960 {
 961         struct net_device *netdev = adapter->netdev;
 962         unsigned long features, vlan_features;
 963
 964         if (qlcnic_83xx_check(adapter))
 965                 return;
 966
 967         features = (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
 968                     NETIF_F_IPV6_CSUM | NETIF_F_GRO);
 969         vlan_features = (NETIF_F_SG | NETIF_F_IP_CSUM |
 970                         NETIF_F_IPV6_CSUM);
 971
 972         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
 973                 features |= (NETIF_F_TSO | NETIF_F_TSO6);
 974                 vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
 975         }
 976
 977         if (netdev->features & NETIF_F_LRO)
 978                 features |= NETIF_F_LRO;
 979
 980         if (esw_cfg->offload_flags & BIT_0) {
 981                 netdev->features |= features;
 982                 adapter->rx_csum = 1;
 983                 if (!(esw_cfg->offload_flags & BIT_1)) {
 984                         netdev->features &= ~NETIF_F_TSO;
 985                         features &= ~NETIF_F_TSO;
 986                 }
 987                 if (!(esw_cfg->offload_flags & BIT_2)) {
 988                         netdev->features &= ~NETIF_F_TSO6;
 989                         features &= ~NETIF_F_TSO6;
 990                 }
 991         } else {
 992                 netdev->features &= ~features;
 993                 features &= ~features;
 994                 adapter->rx_csum = 0;
 995         }
 996
 997         netdev->vlan_features = (features & vlan_features);
 998 }
 999
1000 static int
1001 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1002 {
1003         u32 op_mode, priv_level;
1004         int err = 0;
1005
1006         err = qlcnic_initialize_nic(adapter);
1007         if (err)
1008                 return err;
1009
1010         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1011                 return 0;
1012
1013         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1014         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1015
1016         if (op_mode == QLC_DEV_DRV_DEFAULT)
1017                 priv_level = QLCNIC_MGMT_FUNC;
1018         else
1019                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1020
1021         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1022                 if (priv_level == QLCNIC_MGMT_FUNC) {
1023                         adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1024                         err = qlcnic_init_pci_info(adapter);
1025                         if (err)
1026                                 return err;
1027                         /* Set privilege level for other functions */
1028                         qlcnic_set_function_modes(adapter);
1029                         dev_info(&adapter->pdev->dev,
1030                                 "HAL Version: %d, Management function\n",
1031                                  adapter->ahw->fw_hal_version);
1032                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1033                         adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1034                         dev_info(&adapter->pdev->dev,
1035                                 "HAL Version: %d, Privileged function\n",
1036                                  adapter->ahw->fw_hal_version);
1037                 }
1038         }
1039
1040         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1041
1042         return err;
1043 }
1044
1045 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1046 {
1047         struct qlcnic_esw_func_cfg esw_cfg;
1048         struct qlcnic_npar_info *npar;
1049         u8 i;
1050
1051         if (adapter->need_fw_reset)
1052                 return 0;
1053
1054         for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1055                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1056                 esw_cfg.pci_func = adapter->npars[i].pci_func;
1057                 esw_cfg.mac_override = BIT_0;
1058                 esw_cfg.promisc_mode = BIT_0;
1059                 if (qlcnic_82xx_check(adapter)) {
1060                         esw_cfg.offload_flags = BIT_0;
1061                         if (QLCNIC_IS_TSO_CAPABLE(adapter))
1062                                 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1063                 }
1064                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1065                         return -EIO;
1066                 npar = &adapter->npars[i];
1067                 npar->pvid = esw_cfg.vlan_id;
1068                 npar->mac_override = esw_cfg.mac_override;
1069                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1070                 npar->discard_tagged = esw_cfg.discard_tagged;
1071                 npar->promisc_mode = esw_cfg.promisc_mode;
1072                 npar->offload_flags = esw_cfg.offload_flags;
1073         }
1074
1075         return 0;
1076 }
1077
1078
1079 static int
1080 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1081                         struct qlcnic_npar_info *npar, int pci_func)
1082 {
1083         struct qlcnic_esw_func_cfg esw_cfg;
1084         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1085         esw_cfg.pci_func = pci_func;
1086         esw_cfg.vlan_id = npar->pvid;
1087         esw_cfg.mac_override = npar->mac_override;
1088         esw_cfg.discard_tagged = npar->discard_tagged;
1089         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1090         esw_cfg.offload_flags = npar->offload_flags;
1091         esw_cfg.promisc_mode = npar->promisc_mode;
1092         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1093                 return -EIO;
1094
1095         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1096         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1097                 return -EIO;
1098
1099         return 0;
1100 }
1101
1102 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1103 {
1104         int i, err;
1105         struct qlcnic_npar_info *npar;
1106         struct qlcnic_info nic_info;
1107         u8 pci_func;
1108
1109         if (qlcnic_82xx_check(adapter))
1110                 if (!adapter->need_fw_reset)
1111                         return 0;
1112
1113         /* Set the NPAR config data after FW reset */
1114         for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1115                 npar = &adapter->npars[i];
1116                 pci_func = npar->pci_func;
1117                 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1118                 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1119                 if (err)
1120                         return err;
1121                 nic_info.min_tx_bw = npar->min_bw;
1122                 nic_info.max_tx_bw = npar->max_bw;
1123                 err = qlcnic_set_nic_info(adapter, &nic_info);
1124                 if (err)
1125                         return err;
1126
1127                 if (npar->enable_pm) {
1128                         err = qlcnic_config_port_mirroring(adapter,
1129                                                            npar->dest_npar, 1,
1130                                                            pci_func);
1131                         if (err)
1132                                 return err;
1133                 }
1134                 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1135                 if (err)
1136                         return err;
1137         }
1138         return 0;
1139 }
1140
1141 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1142 {
1143         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1144         u32 npar_state;
1145
1146         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1147                 return 0;
1148
1149         npar_state = QLC_SHARED_REG_RD32(adapter,
1150                                          QLCNIC_CRB_DEV_NPAR_STATE);
1151         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1152                 msleep(1000);
1153                 npar_state = QLC_SHARED_REG_RD32(adapter,
1154                                                  QLCNIC_CRB_DEV_NPAR_STATE);
1155         }
1156         if (!npar_opt_timeo) {
1157                 dev_err(&adapter->pdev->dev,
1158                         "Waiting for NPAR state to operational timeout\n");
1159                 return -EIO;
1160         }
1161         return 0;
1162 }
1163
1164 static int
1165 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1166 {
1167         int err;
1168
1169         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1170             adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1171                 return 0;
1172
1173         err = qlcnic_set_default_offload_settings(adapter);
1174         if (err)
1175                 return err;
1176
1177         err = qlcnic_reset_npar_config(adapter);
1178         if (err)
1179                 return err;
1180
1181         qlcnic_dev_set_npar_ready(adapter);
1182
1183         return err;
1184 }
1185
1186 int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1187 {
1188         int err;
1189
1190         err = qlcnic_can_start_firmware(adapter);
1191         if (err < 0)
1192                 return err;
1193         else if (!err)
1194                 goto check_fw_status;
1195
1196         if (qlcnic_load_fw_file)
1197                 qlcnic_request_firmware(adapter);
1198         else {
1199                 err = qlcnic_check_flash_fw_ver(adapter);
1200                 if (err)
1201                         goto err_out;
1202
1203                 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1204         }
1205
1206         err = qlcnic_need_fw_reset(adapter);
1207         if (err == 0)
1208                 goto check_fw_status;
1209
1210         err = qlcnic_pinit_from_rom(adapter);
1211         if (err)
1212                 goto err_out;
1213
1214         err = qlcnic_load_firmware(adapter);
1215         if (err)
1216                 goto err_out;
1217
1218         qlcnic_release_firmware(adapter);
1219         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1220
1221 check_fw_status:
1222         err = qlcnic_check_fw_status(adapter);
1223         if (err)
1224                 goto err_out;
1225
1226         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1227         qlcnic_idc_debug_info(adapter, 1);
1228         err = qlcnic_check_eswitch_mode(adapter);
1229         if (err) {
1230                 dev_err(&adapter->pdev->dev,
1231                         "Memory allocation failed for eswitch\n");
1232                 goto err_out;
1233         }
1234         err = qlcnic_set_mgmt_operations(adapter);
1235         if (err)
1236                 goto err_out;
1237
1238         qlcnic_check_options(adapter);
1239         adapter->need_fw_reset = 0;
1240
1241         qlcnic_release_firmware(adapter);
1242         return 0;
1243
1244 err_out:
1245         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1246         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1247
1248         qlcnic_release_firmware(adapter);
1249         return err;
1250 }
1251
1252 static int
1253 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1254 {
1255         irq_handler_t handler;
1256         struct qlcnic_host_sds_ring *sds_ring;
1257         struct qlcnic_host_tx_ring *tx_ring;
1258         int err, ring;
1259
1260         unsigned long flags = 0;
1261         struct net_device *netdev = adapter->netdev;
1262         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1263
1264         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1265                 if (qlcnic_82xx_check(adapter))
1266                         handler = qlcnic_tmp_intr;
1267                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1268                         flags |= IRQF_SHARED;
1269
1270         } else {
1271                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1272                         handler = qlcnic_msix_intr;
1273                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1274                         handler = qlcnic_msi_intr;
1275                 else {
1276                         flags |= IRQF_SHARED;
1277                         if (qlcnic_82xx_check(adapter))
1278                                 handler = qlcnic_intr;
1279                         else
1280                                 handler = qlcnic_83xx_intr;
1281                 }
1282         }
1283         adapter->irq = netdev->irq;
1284
1285         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1286                 if (qlcnic_82xx_check(adapter) ||
1287                     (qlcnic_83xx_check(adapter) &&
1288                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1289                         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1290                                 sds_ring = &recv_ctx->sds_rings[ring];
1291                                 snprintf(sds_ring->name, sizeof(int) + IFNAMSIZ,
1292                                          "%s[%d]", netdev->name, ring);
1293                                 err = request_irq(sds_ring->irq, handler, flags,
1294                                                   sds_ring->name, sds_ring);
1295                                 if (err)
1296                                         return err;
1297                         }
1298                 }
1299                 if (qlcnic_83xx_check(adapter) &&
1300                     (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1301                     !(adapter->flags & QLCNIC_TX_INTR_SHARED)) {
1302                         handler = qlcnic_msix_tx_intr;
1303                         for (ring = 0; ring < adapter->max_drv_tx_rings;
1304                              ring++) {
1305                                 tx_ring = &adapter->tx_ring[ring];
1306                                 snprintf(tx_ring->name, sizeof(int) + IFNAMSIZ,
1307                                          "%s[%d]", netdev->name,
1308                                          adapter->max_sds_rings + ring);
1309                                 err = request_irq(tx_ring->irq, handler, flags,
1310                                                   tx_ring->name, tx_ring);
1311                                 if (err)
1312                                         return err;
1313                         }
1314                 }
1315         }
1316         return 0;
1317 }
1318
1319 static void
1320 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1321 {
1322         int ring;
1323         struct qlcnic_host_sds_ring *sds_ring;
1324         struct qlcnic_host_tx_ring *tx_ring;
1325
1326         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1327
1328         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1329                 if (qlcnic_82xx_check(adapter) ||
1330                     (qlcnic_83xx_check(adapter) &&
1331                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1332                         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1333                                 sds_ring = &recv_ctx->sds_rings[ring];
1334                                 free_irq(sds_ring->irq, sds_ring);
1335                         }
1336                 }
1337                 if (qlcnic_83xx_check(adapter) &&
1338                     !(adapter->flags & QLCNIC_TX_INTR_SHARED)) {
1339                         for (ring = 0; ring < adapter->max_drv_tx_rings;
1340                              ring++) {
1341                                 tx_ring = &adapter->tx_ring[ring];
1342                                 if (tx_ring->irq)
1343                                         free_irq(tx_ring->irq, tx_ring);
1344                         }
1345                 }
1346         }
1347 }
1348
1349 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1350 {
1351         u32 capab = 0;
1352
1353         if (qlcnic_82xx_check(adapter)) {
1354                 if (adapter->ahw->capabilities2 &
1355                     QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1356                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1357         } else {
1358                 capab = adapter->ahw->capabilities;
1359                 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1360                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1361         }
1362 }
1363
1364 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1365 {
1366         int ring;
1367         struct qlcnic_host_rds_ring *rds_ring;
1368
1369         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1370                 return -EIO;
1371
1372         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1373                 return 0;
1374         if (qlcnic_set_eswitch_port_config(adapter))
1375                 return -EIO;
1376         qlcnic_get_lro_mss_capability(adapter);
1377
1378         if (qlcnic_fw_create_ctx(adapter))
1379                 return -EIO;
1380
1381         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1382                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1383                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1384         }
1385
1386         qlcnic_set_multi(netdev);
1387         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1388
1389         adapter->ahw->linkup = 0;
1390
1391         if (adapter->max_sds_rings > 1)
1392                 qlcnic_config_rss(adapter, 1);
1393
1394         qlcnic_config_intr_coalesce(adapter);
1395
1396         if (netdev->features & NETIF_F_LRO)
1397                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1398
1399         qlcnic_napi_enable(adapter);
1400
1401         qlcnic_linkevent_request(adapter, 1);
1402
1403         adapter->ahw->reset_context = 0;
1404         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1405         return 0;
1406 }
1407
1408 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1409 {
1410         int err = 0;
1411
1412         rtnl_lock();
1413         if (netif_running(netdev))
1414                 err = __qlcnic_up(adapter, netdev);
1415         rtnl_unlock();
1416
1417         return err;
1418 }
1419
1420 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1421 {
1422         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1423                 return;
1424
1425         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1426                 return;
1427
1428         if (qlcnic_sriov_vf_check(adapter))
1429                 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1430         smp_mb();
1431         spin_lock(&adapter->tx_clean_lock);
1432         netif_carrier_off(netdev);
1433         adapter->ahw->linkup = 0;
1434         netif_tx_disable(netdev);
1435
1436         qlcnic_free_mac_list(adapter);
1437
1438         if (adapter->fhash.fnum)
1439                 qlcnic_delete_lb_filters(adapter);
1440
1441         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1442
1443         qlcnic_napi_disable(adapter);
1444
1445         qlcnic_fw_destroy_ctx(adapter);
1446         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1447
1448         qlcnic_reset_rx_buffers_list(adapter);
1449         qlcnic_release_tx_buffers(adapter);
1450         spin_unlock(&adapter->tx_clean_lock);
1451 }
1452
1453 /* Usage: During suspend and firmware recovery module */
1454
1455 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1456 {
1457         rtnl_lock();
1458         if (netif_running(netdev))
1459                 __qlcnic_down(adapter, netdev);
1460         rtnl_unlock();
1461
1462 }
1463
1464 int
1465 qlcnic_attach(struct qlcnic_adapter *adapter)
1466 {
1467         struct net_device *netdev = adapter->netdev;
1468         struct pci_dev *pdev = adapter->pdev;
1469         int err;
1470
1471         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1472                 return 0;
1473
1474         err = qlcnic_napi_add(adapter, netdev);
1475         if (err)
1476                 return err;
1477
1478         err = qlcnic_alloc_sw_resources(adapter);
1479         if (err) {
1480                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1481                 goto err_out_napi_del;
1482         }
1483
1484         err = qlcnic_alloc_hw_resources(adapter);
1485         if (err) {
1486                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1487                 goto err_out_free_sw;
1488         }
1489
1490         err = qlcnic_request_irq(adapter);
1491         if (err) {
1492                 dev_err(&pdev->dev, "failed to setup interrupt\n");
1493                 goto err_out_free_hw;
1494         }
1495
1496         qlcnic_create_sysfs_entries(adapter);
1497
1498         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1499         return 0;
1500
1501 err_out_free_hw:
1502         qlcnic_free_hw_resources(adapter);
1503 err_out_free_sw:
1504         qlcnic_free_sw_resources(adapter);
1505 err_out_napi_del:
1506         qlcnic_napi_del(adapter);
1507         return err;
1508 }
1509
1510 void qlcnic_detach(struct qlcnic_adapter *adapter)
1511 {
1512         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1513                 return;
1514
1515         qlcnic_remove_sysfs_entries(adapter);
1516
1517         qlcnic_free_hw_resources(adapter);
1518         qlcnic_release_rx_buffers(adapter);
1519         qlcnic_free_irq(adapter);
1520         qlcnic_napi_del(adapter);
1521         qlcnic_free_sw_resources(adapter);
1522
1523         adapter->is_up = 0;
1524 }
1525
1526 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1527 {
1528         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1529         struct qlcnic_host_sds_ring *sds_ring;
1530         int ring;
1531
1532         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1533         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1534                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1535                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1536                         qlcnic_disable_int(sds_ring);
1537                 }
1538         }
1539
1540         qlcnic_fw_destroy_ctx(adapter);
1541
1542         qlcnic_detach(adapter);
1543
1544         adapter->ahw->diag_test = 0;
1545         adapter->max_sds_rings = max_sds_rings;
1546
1547         if (qlcnic_attach(adapter))
1548                 goto out;
1549
1550         if (netif_running(netdev))
1551                 __qlcnic_up(adapter, netdev);
1552 out:
1553         netif_device_attach(netdev);
1554 }
1555
1556 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
1557 {
1558         int err = 0;
1559         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
1560                                 GFP_KERNEL);
1561         if (!adapter->recv_ctx) {
1562                 err = -ENOMEM;
1563                 goto err_out;
1564         }
1565         /* Initialize interrupt coalesce parameters */
1566         adapter->ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1567         adapter->ahw->coal.rx_time_us = QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
1568         adapter->ahw->coal.rx_packets = QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
1569         /* clear stats */
1570         memset(&adapter->stats, 0, sizeof(adapter->stats));
1571 err_out:
1572         return err;
1573 }
1574
1575 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
1576 {
1577         kfree(adapter->recv_ctx);
1578         adapter->recv_ctx = NULL;
1579
1580         if (adapter->ahw->fw_dump.tmpl_hdr) {
1581                 vfree(adapter->ahw->fw_dump.tmpl_hdr);
1582                 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1583         }
1584
1585         kfree(adapter->ahw->reset.buff);
1586         adapter->ahw->fw_dump.tmpl_hdr = NULL;
1587 }
1588
1589 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1590 {
1591         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1592         struct qlcnic_host_sds_ring *sds_ring;
1593         struct qlcnic_host_rds_ring *rds_ring;
1594         int ring;
1595         int ret;
1596
1597         netif_device_detach(netdev);
1598
1599         if (netif_running(netdev))
1600                 __qlcnic_down(adapter, netdev);
1601
1602         qlcnic_detach(adapter);
1603
1604         adapter->max_sds_rings = 1;
1605         adapter->ahw->diag_test = test;
1606         adapter->ahw->linkup = 0;
1607
1608         ret = qlcnic_attach(adapter);
1609         if (ret) {
1610                 netif_device_attach(netdev);
1611                 return ret;
1612         }
1613
1614         ret = qlcnic_fw_create_ctx(adapter);
1615         if (ret) {
1616                 qlcnic_detach(adapter);
1617                 netif_device_attach(netdev);
1618                 return ret;
1619         }
1620
1621         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1622                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1623                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1624         }
1625
1626         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1627                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1628                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1629                         qlcnic_enable_int(sds_ring);
1630                 }
1631         }
1632
1633         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
1634                 adapter->ahw->loopback_state = 0;
1635                 qlcnic_linkevent_request(adapter, 1);
1636         }
1637
1638         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1639
1640         return 0;
1641 }
1642
1643 /* Reset context in hardware only */
1644 static int
1645 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1646 {
1647         struct net_device *netdev = adapter->netdev;
1648
1649         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1650                 return -EBUSY;
1651
1652         netif_device_detach(netdev);
1653
1654         qlcnic_down(adapter, netdev);
1655
1656         qlcnic_up(adapter, netdev);
1657
1658         netif_device_attach(netdev);
1659
1660         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1661         dev_err(&adapter->pdev->dev, "%s:\n", __func__);
1662         return 0;
1663 }
1664
1665 int
1666 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1667 {
1668         int err = 0;
1669         struct net_device *netdev = adapter->netdev;
1670
1671         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1672                 return -EBUSY;
1673
1674         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1675
1676                 netif_device_detach(netdev);
1677
1678                 if (netif_running(netdev))
1679                         __qlcnic_down(adapter, netdev);
1680
1681                 qlcnic_detach(adapter);
1682
1683                 if (netif_running(netdev)) {
1684                         err = qlcnic_attach(adapter);
1685                         if (!err) {
1686                                 __qlcnic_up(adapter, netdev);
1687                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1688                         }
1689                 }
1690
1691                 netif_device_attach(netdev);
1692         }
1693
1694         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1695         return err;
1696 }
1697
1698 int
1699 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
1700                     int pci_using_dac)
1701 {
1702         int err;
1703         struct pci_dev *pdev = adapter->pdev;
1704
1705         adapter->rx_csum = 1;
1706         adapter->ahw->mc_enabled = 0;
1707         adapter->ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
1708
1709         netdev->netdev_ops         = &qlcnic_netdev_ops;
1710         netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
1711
1712         qlcnic_change_mtu(netdev, netdev->mtu);
1713
1714         SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1715
1716         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
1717                              NETIF_F_IPV6_CSUM | NETIF_F_GRO |
1718                              NETIF_F_HW_VLAN_RX);
1719         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1720                                   NETIF_F_IPV6_CSUM);
1721
1722         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
1723                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
1724                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
1725         }
1726
1727         if (pci_using_dac) {
1728                 netdev->features |= NETIF_F_HIGHDMA;
1729                 netdev->vlan_features |= NETIF_F_HIGHDMA;
1730         }
1731
1732         if (qlcnic_vlan_tx_check(adapter))
1733                 netdev->features |= (NETIF_F_HW_VLAN_TX);
1734
1735         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1736                 netdev->features |= NETIF_F_LRO;
1737
1738         netdev->hw_features = netdev->features;
1739         netdev->irq = adapter->msix_entries[0].vector;
1740
1741         err = register_netdev(netdev);
1742         if (err) {
1743                 dev_err(&pdev->dev, "failed to register net device\n");
1744                 return err;
1745         }
1746
1747         return 0;
1748 }
1749
1750 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
1751 {
1752         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1753                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1754                 *pci_using_dac = 1;
1755         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1756                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1757                 *pci_using_dac = 0;
1758         else {
1759                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1760                 return -EIO;
1761         }
1762
1763         return 0;
1764 }
1765
1766 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
1767 {
1768         int ring;
1769         struct qlcnic_host_tx_ring *tx_ring;
1770
1771         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1772                 tx_ring = &adapter->tx_ring[ring];
1773                 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
1774                         vfree(tx_ring->cmd_buf_arr);
1775                         tx_ring->cmd_buf_arr = NULL;
1776                 }
1777         }
1778         if (adapter->tx_ring != NULL)
1779                 kfree(adapter->tx_ring);
1780 }
1781
1782 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
1783                           struct net_device *netdev)
1784 {
1785         int ring, vector, index;
1786         struct qlcnic_host_tx_ring *tx_ring;
1787         struct qlcnic_cmd_buffer *cmd_buf_arr;
1788
1789         tx_ring = kcalloc(adapter->max_drv_tx_rings,
1790                           sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
1791         if (tx_ring == NULL)
1792                 return -ENOMEM;
1793
1794         adapter->tx_ring = tx_ring;
1795
1796         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1797                 tx_ring = &adapter->tx_ring[ring];
1798                 tx_ring->num_desc = adapter->num_txd;
1799                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
1800                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
1801                 if (cmd_buf_arr == NULL) {
1802                         qlcnic_free_tx_rings(adapter);
1803                         return -ENOMEM;
1804                 }
1805                 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
1806                 tx_ring->cmd_buf_arr = cmd_buf_arr;
1807         }
1808
1809         if (qlcnic_83xx_check(adapter)) {
1810                 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1811                         tx_ring = &adapter->tx_ring[ring];
1812                         tx_ring->adapter = adapter;
1813                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
1814                                 index = adapter->max_sds_rings + ring;
1815                                 vector = adapter->msix_entries[index].vector;
1816                                 tx_ring->irq = vector;
1817                         }
1818                 }
1819         }
1820         return 0;
1821 }
1822
1823 static int
1824 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1825 {
1826         struct net_device *netdev = NULL;
1827         struct qlcnic_adapter *adapter = NULL;
1828         struct qlcnic_hardware_context *ahw;
1829         int err, pci_using_dac = -1;
1830         u32 capab2;
1831         char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
1832
1833         if (pdev->is_virtfn)
1834                 return -ENODEV;
1835
1836         err = pci_enable_device(pdev);
1837         if (err)
1838                 return err;
1839
1840         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1841                 err = -ENODEV;
1842                 goto err_out_disable_pdev;
1843         }
1844
1845         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
1846         if (err)
1847                 goto err_out_disable_pdev;
1848
1849         err = pci_request_regions(pdev, qlcnic_driver_name);
1850         if (err)
1851                 goto err_out_disable_pdev;
1852
1853         pci_set_master(pdev);
1854         pci_enable_pcie_error_reporting(pdev);
1855
1856         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
1857         if (!ahw)
1858                 goto err_out_free_res;
1859
1860         switch (ent->device) {
1861         case PCI_DEVICE_ID_QLOGIC_QLE824X:
1862                 ahw->hw_ops = &qlcnic_hw_ops;
1863                 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
1864                 break;
1865         case PCI_DEVICE_ID_QLOGIC_QLE834X:
1866                 qlcnic_83xx_register_map(ahw);
1867                 break;
1868         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
1869                 qlcnic_sriov_vf_register_map(ahw);
1870                 break;
1871         default:
1872                 goto err_out_free_hw_res;
1873         }
1874
1875         err = qlcnic_setup_pci_map(pdev, ahw);
1876         if (err)
1877                 goto err_out_free_hw_res;
1878
1879         netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1880         if (!netdev) {
1881                 err = -ENOMEM;
1882                 goto err_out_iounmap;
1883         }
1884
1885         SET_NETDEV_DEV(netdev, &pdev->dev);
1886
1887         adapter = netdev_priv(netdev);
1888         adapter->netdev  = netdev;
1889         adapter->pdev    = pdev;
1890         adapter->ahw = ahw;
1891
1892         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
1893         if (adapter->qlcnic_wq == NULL) {
1894                 dev_err(&pdev->dev, "Failed to create workqueue\n");
1895                 goto err_out_free_netdev;
1896         }
1897
1898         err = qlcnic_alloc_adapter_resources(adapter);
1899         if (err)
1900                 goto err_out_free_netdev;
1901
1902         adapter->dev_rst_time = jiffies;
1903         adapter->ahw->revision_id = pdev->revision;
1904         if (qlcnic_mac_learn == FDB_MAC_LEARN)
1905                 adapter->fdb_mac_learn = true;
1906         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
1907                 adapter->drv_mac_learn = true;
1908         adapter->max_drv_tx_rings = 1;
1909
1910         rwlock_init(&adapter->ahw->crb_lock);
1911         mutex_init(&adapter->ahw->mem_lock);
1912
1913         spin_lock_init(&adapter->tx_clean_lock);
1914         INIT_LIST_HEAD(&adapter->mac_list);
1915
1916         if (qlcnic_82xx_check(adapter)) {
1917                 qlcnic_check_vf(adapter, ent);
1918                 adapter->portnum = adapter->ahw->pci_func;
1919                 err = qlcnic_start_firmware(adapter);
1920                 if (err) {
1921                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
1922                         goto err_out_free_hw;
1923                 }
1924
1925                 err = qlcnic_setup_idc_param(adapter);
1926                 if (err)
1927                         goto err_out_free_hw;
1928
1929                 adapter->flags |= QLCNIC_NEED_FLR;
1930         } else if (qlcnic_83xx_check(adapter)) {
1931                 qlcnic_83xx_check_vf(adapter, ent);
1932                 adapter->portnum = adapter->ahw->pci_func;
1933                 err = qlcnic_83xx_init(adapter, pci_using_dac);
1934                 if (err) {
1935                         dev_err(&pdev->dev, "%s: failed\n", __func__);
1936                         goto err_out_free_hw;
1937                 }
1938                 if (qlcnic_sriov_vf_check(adapter))
1939                         return 0;
1940         } else {
1941                 dev_err(&pdev->dev,
1942                         "%s: failed. Please Reboot\n", __func__);
1943                 goto err_out_free_hw;
1944         }
1945
1946         if (qlcnic_read_mac_addr(adapter))
1947                 dev_warn(&pdev->dev, "failed to read mac addr\n");
1948
1949         if (adapter->portnum == 0) {
1950                 qlcnic_get_board_name(adapter, board_name);
1951
1952                 pr_info("%s: %s Board Chip rev 0x%x\n",
1953                         module_name(THIS_MODULE),
1954                         board_name, adapter->ahw->revision_id);
1955         }
1956
1957         if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
1958             !!qlcnic_use_msi)
1959                 dev_warn(&pdev->dev,
1960                          "83xx adapter do not support MSI interrupts\n");
1961
1962         err = qlcnic_setup_intr(adapter, 0);
1963         if (err) {
1964                 dev_err(&pdev->dev, "Failed to setup interrupt\n");
1965                 goto err_out_disable_msi;
1966         }
1967
1968         if (qlcnic_83xx_check(adapter)) {
1969                 err = qlcnic_83xx_setup_mbx_intr(adapter);
1970                 if (err)
1971                         goto err_out_disable_msi;
1972         }
1973
1974         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
1975         if (err)
1976                 goto err_out_disable_mbx_intr;
1977
1978         if (qlcnic_82xx_check(adapter)) {
1979                 if (ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1980                         capab2 = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
1981                         if (capab2 & QLCNIC_FW_CAPABILITY_2_OCBB)
1982                                 qlcnic_fw_cmd_set_drv_version(adapter);
1983                 }
1984         }
1985
1986         pci_set_drvdata(pdev, adapter);
1987
1988         if (qlcnic_82xx_check(adapter))
1989                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
1990                                      FW_POLL_DELAY);
1991
1992         switch (adapter->ahw->port_type) {
1993         case QLCNIC_GBE:
1994                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1995                                 adapter->netdev->name);
1996                 break;
1997         case QLCNIC_XGBE:
1998                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1999                                 adapter->netdev->name);
2000                 break;
2001         }
2002
2003         if (qlcnic_get_act_pci_func(adapter))
2004                 goto err_out_disable_mbx_intr;
2005
2006         if (adapter->drv_mac_learn)
2007                 qlcnic_alloc_lb_filters_mem(adapter);
2008
2009         qlcnic_add_sysfs(adapter);
2010
2011         return 0;
2012
2013 err_out_disable_mbx_intr:
2014         if (qlcnic_83xx_check(adapter))
2015                 qlcnic_83xx_free_mbx_intr(adapter);
2016
2017 err_out_disable_msi:
2018         qlcnic_teardown_intr(adapter);
2019         qlcnic_cancel_idc_work(adapter);
2020         qlcnic_clr_all_drv_state(adapter, 0);
2021
2022 err_out_free_hw:
2023         qlcnic_free_adapter_resources(adapter);
2024
2025 err_out_free_netdev:
2026         free_netdev(netdev);
2027
2028 err_out_iounmap:
2029         qlcnic_cleanup_pci_map(adapter);
2030
2031 err_out_free_hw_res:
2032         kfree(ahw);
2033
2034 err_out_free_res:
2035         pci_release_regions(pdev);
2036
2037 err_out_disable_pdev:
2038         pci_set_drvdata(pdev, NULL);
2039         pci_disable_device(pdev);
2040         return err;
2041 }
2042
2043 static void qlcnic_remove(struct pci_dev *pdev)
2044 {
2045         struct qlcnic_adapter *adapter;
2046         struct net_device *netdev;
2047         struct qlcnic_hardware_context *ahw;
2048
2049         adapter = pci_get_drvdata(pdev);
2050         if (adapter == NULL)
2051                 return;
2052
2053         netdev = adapter->netdev;
2054         qlcnic_sriov_pf_disable(adapter);
2055
2056         qlcnic_cancel_idc_work(adapter);
2057         ahw = adapter->ahw;
2058
2059         unregister_netdev(netdev);
2060         qlcnic_sriov_cleanup(adapter);
2061
2062         if (qlcnic_83xx_check(adapter)) {
2063                 qlcnic_83xx_free_mbx_intr(adapter);
2064                 qlcnic_83xx_register_nic_idc_func(adapter, 0);
2065                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2066         }
2067
2068         qlcnic_detach(adapter);
2069
2070         if (adapter->npars != NULL)
2071                 kfree(adapter->npars);
2072         if (adapter->eswitch != NULL)
2073                 kfree(adapter->eswitch);
2074
2075         if (qlcnic_82xx_check(adapter))
2076                 qlcnic_clr_all_drv_state(adapter, 0);
2077
2078         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2079
2080         qlcnic_free_lb_filters_mem(adapter);
2081
2082         qlcnic_teardown_intr(adapter);
2083
2084         qlcnic_remove_sysfs(adapter);
2085
2086         qlcnic_cleanup_pci_map(adapter);
2087
2088         qlcnic_release_firmware(adapter);
2089
2090         pci_disable_pcie_error_reporting(pdev);
2091         pci_release_regions(pdev);
2092         pci_disable_device(pdev);
2093         pci_set_drvdata(pdev, NULL);
2094
2095         if (adapter->qlcnic_wq) {
2096                 destroy_workqueue(adapter->qlcnic_wq);
2097                 adapter->qlcnic_wq = NULL;
2098         }
2099         qlcnic_free_adapter_resources(adapter);
2100         kfree(ahw);
2101         free_netdev(netdev);
2102 }
2103 static int __qlcnic_shutdown(struct pci_dev *pdev)
2104 {
2105         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2106         struct net_device *netdev = adapter->netdev;
2107         int retval;
2108
2109         netif_device_detach(netdev);
2110
2111         qlcnic_cancel_idc_work(adapter);
2112
2113         if (netif_running(netdev))
2114                 qlcnic_down(adapter, netdev);
2115
2116         if (qlcnic_82xx_check(adapter))
2117                 qlcnic_clr_all_drv_state(adapter, 0);
2118
2119         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2120
2121         retval = pci_save_state(pdev);
2122         if (retval)
2123                 return retval;
2124         if (qlcnic_82xx_check(adapter)) {
2125                 if (qlcnic_wol_supported(adapter)) {
2126                         pci_enable_wake(pdev, PCI_D3cold, 1);
2127                         pci_enable_wake(pdev, PCI_D3hot, 1);
2128                 }
2129         }
2130
2131         return 0;
2132 }
2133
2134 static void qlcnic_shutdown(struct pci_dev *pdev)
2135 {
2136         if (__qlcnic_shutdown(pdev))
2137                 return;
2138
2139         pci_disable_device(pdev);
2140 }
2141
2142 #ifdef CONFIG_PM
2143 static int
2144 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2145 {
2146         int retval;
2147
2148         retval = __qlcnic_shutdown(pdev);
2149         if (retval)
2150                 return retval;
2151
2152         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2153         return 0;
2154 }
2155
2156 static int
2157 qlcnic_resume(struct pci_dev *pdev)
2158 {
2159         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2160         struct net_device *netdev = adapter->netdev;
2161         int err;
2162
2163         err = pci_enable_device(pdev);
2164         if (err)
2165                 return err;
2166
2167         pci_set_power_state(pdev, PCI_D0);
2168         pci_set_master(pdev);
2169         pci_restore_state(pdev);
2170
2171         err = qlcnic_start_firmware(adapter);
2172         if (err) {
2173                 dev_err(&pdev->dev, "failed to start firmware\n");
2174                 return err;
2175         }
2176
2177         if (netif_running(netdev)) {
2178                 err = qlcnic_up(adapter, netdev);
2179                 if (err)
2180                         goto done;
2181
2182                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2183         }
2184 done:
2185         netif_device_attach(netdev);
2186         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
2187         return 0;
2188 }
2189 #endif
2190
2191 static int qlcnic_open(struct net_device *netdev)
2192 {
2193         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2194         int err;
2195
2196         netif_carrier_off(netdev);
2197
2198         err = qlcnic_attach(adapter);
2199         if (err)
2200                 return err;
2201
2202         err = __qlcnic_up(adapter, netdev);
2203         if (err)
2204                 goto err_out;
2205
2206         netif_start_queue(netdev);
2207
2208         return 0;
2209
2210 err_out:
2211         qlcnic_detach(adapter);
2212         return err;
2213 }
2214
2215 /*
2216  * qlcnic_close - Disables a network interface entry point
2217  */
2218 static int qlcnic_close(struct net_device *netdev)
2219 {
2220         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2221
2222         __qlcnic_down(adapter, netdev);
2223
2224         return 0;
2225 }
2226
2227 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2228 {
2229         void *head;
2230         int i;
2231         struct net_device *netdev = adapter->netdev;
2232         u32 filter_size = 0;
2233         u16 act_pci_func = 0;
2234
2235         if (adapter->fhash.fmax && adapter->fhash.fhead)
2236                 return;
2237
2238         act_pci_func = adapter->ahw->act_pci_func;
2239         spin_lock_init(&adapter->mac_learn_lock);
2240         spin_lock_init(&adapter->rx_mac_learn_lock);
2241
2242         if (qlcnic_82xx_check(adapter)) {
2243                 filter_size = QLCNIC_LB_MAX_FILTERS;
2244                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2245         } else {
2246                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2247                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2248         }
2249
2250         head = kcalloc(adapter->fhash.fbucket_size,
2251                        sizeof(struct hlist_head), GFP_ATOMIC);
2252
2253         if (!head)
2254                 return;
2255
2256         adapter->fhash.fmax = (filter_size / act_pci_func);
2257         adapter->fhash.fhead = head;
2258
2259         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2260                     act_pci_func, adapter->fhash.fmax);
2261
2262         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2263                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2264
2265         adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2266
2267         head = kcalloc(adapter->rx_fhash.fbucket_size,
2268                        sizeof(struct hlist_head), GFP_ATOMIC);
2269
2270         if (!head)
2271                 return;
2272
2273         adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2274         adapter->rx_fhash.fhead = head;
2275
2276         for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2277                 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2278 }
2279
2280 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2281 {
2282         if (adapter->fhash.fmax && adapter->fhash.fhead)
2283                 kfree(adapter->fhash.fhead);
2284
2285         adapter->fhash.fhead = NULL;
2286         adapter->fhash.fmax = 0;
2287
2288         if (adapter->rx_fhash.fmax && adapter->rx_fhash.fhead)
2289                 kfree(adapter->rx_fhash.fhead);
2290
2291         adapter->rx_fhash.fmax = 0;
2292         adapter->rx_fhash.fhead = NULL;
2293 }
2294
2295 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2296 {
2297         struct net_device *netdev = adapter->netdev;
2298         u32 temp_state, temp_val, temp = 0;
2299         int rv = 0;
2300
2301         if (qlcnic_83xx_check(adapter))
2302                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2303
2304         if (qlcnic_82xx_check(adapter))
2305                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2306
2307         temp_state = qlcnic_get_temp_state(temp);
2308         temp_val = qlcnic_get_temp_val(temp);
2309
2310         if (temp_state == QLCNIC_TEMP_PANIC) {
2311                 dev_err(&netdev->dev,
2312                        "Device temperature %d degrees C exceeds"
2313                        " maximum allowed. Hardware has been shut down.\n",
2314                        temp_val);
2315                 rv = 1;
2316         } else if (temp_state == QLCNIC_TEMP_WARN) {
2317                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2318                         dev_err(&netdev->dev,
2319                                "Device temperature %d degrees C "
2320                                "exceeds operating range."
2321                                " Immediate action needed.\n",
2322                                temp_val);
2323                 }
2324         } else {
2325                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2326                         dev_info(&netdev->dev,
2327                                "Device temperature is now %d degrees C"
2328                                " in normal range.\n", temp_val);
2329                 }
2330         }
2331         adapter->ahw->temp = temp_state;
2332         return rv;
2333 }
2334
2335 static void qlcnic_tx_timeout(struct net_device *netdev)
2336 {
2337         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2338
2339         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2340                 return;
2341
2342         dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2343
2344         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
2345                 adapter->need_fw_reset = 1;
2346         else
2347                 adapter->ahw->reset_context = 1;
2348 }
2349
2350 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2351 {
2352         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2353         struct net_device_stats *stats = &netdev->stats;
2354
2355         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2356         stats->tx_packets = adapter->stats.xmitfinished;
2357         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2358         stats->tx_bytes = adapter->stats.txbytes;
2359         stats->rx_dropped = adapter->stats.rxdropped;
2360         stats->tx_dropped = adapter->stats.txdropped;
2361
2362         return stats;
2363 }
2364
2365 irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
2366 {
2367         u32 status;
2368
2369         status = readl(adapter->isr_int_vec);
2370
2371         if (!(status & adapter->ahw->int_vec_bit))
2372                 return IRQ_NONE;
2373
2374         /* check interrupt state machine, to be sure */
2375         status = readl(adapter->crb_int_state_reg);
2376         if (!ISR_LEGACY_INT_TRIGGERED(status))
2377                 return IRQ_NONE;
2378
2379         writel(0xffffffff, adapter->tgt_status_reg);
2380         /* read twice to ensure write is flushed */
2381         readl(adapter->isr_int_vec);
2382         readl(adapter->isr_int_vec);
2383
2384         return IRQ_HANDLED;
2385 }
2386
2387 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2388 {
2389         struct qlcnic_host_sds_ring *sds_ring = data;
2390         struct qlcnic_adapter *adapter = sds_ring->adapter;
2391
2392         if (adapter->flags & QLCNIC_MSIX_ENABLED)
2393                 goto done;
2394         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2395                 writel(0xffffffff, adapter->tgt_status_reg);
2396                 goto done;
2397         }
2398
2399         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2400                 return IRQ_NONE;
2401
2402 done:
2403         adapter->ahw->diag_cnt++;
2404         qlcnic_enable_int(sds_ring);
2405         return IRQ_HANDLED;
2406 }
2407
2408 static irqreturn_t qlcnic_intr(int irq, void *data)
2409 {
2410         struct qlcnic_host_sds_ring *sds_ring = data;
2411         struct qlcnic_adapter *adapter = sds_ring->adapter;
2412
2413         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2414                 return IRQ_NONE;
2415
2416         napi_schedule(&sds_ring->napi);
2417
2418         return IRQ_HANDLED;
2419 }
2420
2421 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2422 {
2423         struct qlcnic_host_sds_ring *sds_ring = data;
2424         struct qlcnic_adapter *adapter = sds_ring->adapter;
2425
2426         /* clear interrupt */
2427         writel(0xffffffff, adapter->tgt_status_reg);
2428
2429         napi_schedule(&sds_ring->napi);
2430         return IRQ_HANDLED;
2431 }
2432
2433 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2434 {
2435         struct qlcnic_host_sds_ring *sds_ring = data;
2436
2437         napi_schedule(&sds_ring->napi);
2438         return IRQ_HANDLED;
2439 }
2440
2441 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
2442 {
2443         struct qlcnic_host_tx_ring *tx_ring = data;
2444
2445         napi_schedule(&tx_ring->napi);
2446         return IRQ_HANDLED;
2447 }
2448
2449 #ifdef CONFIG_NET_POLL_CONTROLLER
2450 static void qlcnic_poll_controller(struct net_device *netdev)
2451 {
2452         int ring;
2453         struct qlcnic_host_sds_ring *sds_ring;
2454         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2455         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2456
2457         disable_irq(adapter->irq);
2458         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2459                 sds_ring = &recv_ctx->sds_rings[ring];
2460                 qlcnic_intr(adapter->irq, sds_ring);
2461         }
2462         enable_irq(adapter->irq);
2463 }
2464 #endif
2465
2466 static void
2467 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2468 {
2469         u32 val;
2470
2471         val = adapter->portnum & 0xf;
2472         val |= encoding << 7;
2473         val |= (jiffies - adapter->dev_rst_time) << 8;
2474
2475         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2476         adapter->dev_rst_time = jiffies;
2477 }
2478
2479 static int
2480 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2481 {
2482         u32  val;
2483
2484         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2485                         state != QLCNIC_DEV_NEED_QUISCENT);
2486
2487         if (qlcnic_api_lock(adapter))
2488                 return -EIO;
2489
2490         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2491
2492         if (state == QLCNIC_DEV_NEED_RESET)
2493                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2494         else if (state == QLCNIC_DEV_NEED_QUISCENT)
2495                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2496
2497         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2498
2499         qlcnic_api_unlock(adapter);
2500
2501         return 0;
2502 }
2503
2504 static int
2505 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2506 {
2507         u32  val;
2508
2509         if (qlcnic_api_lock(adapter))
2510                 return -EBUSY;
2511
2512         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2513         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2514         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2515
2516         qlcnic_api_unlock(adapter);
2517
2518         return 0;
2519 }
2520
2521 static void
2522 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2523 {
2524         u32  val;
2525
2526         if (qlcnic_api_lock(adapter))
2527                 goto err;
2528
2529         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2530         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2531         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2532
2533         if (failed) {
2534                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2535                                     QLCNIC_DEV_FAILED);
2536                 dev_info(&adapter->pdev->dev,
2537                                 "Device state set to Failed. Please Reboot\n");
2538         } else if (!(val & 0x11111111))
2539                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2540                                     QLCNIC_DEV_COLD);
2541
2542         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2543         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2544         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2545
2546         qlcnic_api_unlock(adapter);
2547 err:
2548         adapter->fw_fail_cnt = 0;
2549         adapter->flags &= ~QLCNIC_FW_HANG;
2550         clear_bit(__QLCNIC_START_FW, &adapter->state);
2551         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2552 }
2553
2554 /* Grab api lock, before checking state */
2555 static int
2556 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2557 {
2558         int act, state, active_mask;
2559         struct qlcnic_hardware_context *ahw = adapter->ahw;
2560
2561         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2562         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2563
2564         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
2565                 active_mask = (~(1 << (ahw->pci_func * 4)));
2566                 act = act & active_mask;
2567         }
2568
2569         if (((state & 0x11111111) == (act & 0x11111111)) ||
2570                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2571                 return 0;
2572         else
2573                 return 1;
2574 }
2575
2576 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2577 {
2578         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2579
2580         if (val != QLCNIC_DRV_IDC_VER) {
2581                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2582                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2583         }
2584
2585         return 0;
2586 }
2587
2588 static int
2589 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2590 {
2591         u32 val, prev_state;
2592         u8 dev_init_timeo = adapter->dev_init_timeo;
2593         u8 portnum = adapter->portnum;
2594         u8 ret;
2595
2596         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2597                 return 1;
2598
2599         if (qlcnic_api_lock(adapter))
2600                 return -1;
2601
2602         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2603         if (!(val & (1 << (portnum * 4)))) {
2604                 QLC_DEV_SET_REF_CNT(val, portnum);
2605                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2606         }
2607
2608         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2609         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2610
2611         switch (prev_state) {
2612         case QLCNIC_DEV_COLD:
2613                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2614                                     QLCNIC_DEV_INITIALIZING);
2615                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
2616                                     QLCNIC_DRV_IDC_VER);
2617                 qlcnic_idc_debug_info(adapter, 0);
2618                 qlcnic_api_unlock(adapter);
2619                 return 1;
2620
2621         case QLCNIC_DEV_READY:
2622                 ret = qlcnic_check_idc_ver(adapter);
2623                 qlcnic_api_unlock(adapter);
2624                 return ret;
2625
2626         case QLCNIC_DEV_NEED_RESET:
2627                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2628                 QLC_DEV_SET_RST_RDY(val, portnum);
2629                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2630                 break;
2631
2632         case QLCNIC_DEV_NEED_QUISCENT:
2633                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2634                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
2635                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2636                 break;
2637
2638         case QLCNIC_DEV_FAILED:
2639                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
2640                 qlcnic_api_unlock(adapter);
2641                 return -1;
2642
2643         case QLCNIC_DEV_INITIALIZING:
2644         case QLCNIC_DEV_QUISCENT:
2645                 break;
2646         }
2647
2648         qlcnic_api_unlock(adapter);
2649
2650         do {
2651                 msleep(1000);
2652                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2653
2654                 if (prev_state == QLCNIC_DEV_QUISCENT)
2655                         continue;
2656         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
2657
2658         if (!dev_init_timeo) {
2659                 dev_err(&adapter->pdev->dev,
2660                         "Waiting for device to initialize timeout\n");
2661                 return -1;
2662         }
2663
2664         if (qlcnic_api_lock(adapter))
2665                 return -1;
2666
2667         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2668         QLC_DEV_CLR_RST_QSCNT(val, portnum);
2669         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2670
2671         ret = qlcnic_check_idc_ver(adapter);
2672         qlcnic_api_unlock(adapter);
2673
2674         return ret;
2675 }
2676
2677 static void
2678 qlcnic_fwinit_work(struct work_struct *work)
2679 {
2680         struct qlcnic_adapter *adapter = container_of(work,
2681                         struct qlcnic_adapter, fw_work.work);
2682         u32 dev_state = 0xf;
2683         u32 val;
2684
2685         if (qlcnic_api_lock(adapter))
2686                 goto err_ret;
2687
2688         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2689         if (dev_state == QLCNIC_DEV_QUISCENT ||
2690             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2691                 qlcnic_api_unlock(adapter);
2692                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2693                                                 FW_POLL_DELAY * 2);
2694                 return;
2695         }
2696
2697         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
2698                 qlcnic_api_unlock(adapter);
2699                 goto wait_npar;
2700         }
2701
2702         if (dev_state == QLCNIC_DEV_INITIALIZING ||
2703             dev_state == QLCNIC_DEV_READY) {
2704                 dev_info(&adapter->pdev->dev, "Detected state change from "
2705                                 "DEV_NEED_RESET, skipping ack check\n");
2706                 goto skip_ack_check;
2707         }
2708
2709         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2710                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2711                                         adapter->reset_ack_timeo);
2712                 goto skip_ack_check;
2713         }
2714
2715         if (!qlcnic_check_drv_state(adapter)) {
2716 skip_ack_check:
2717                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2718
2719                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2720                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2721                                             QLCNIC_DEV_INITIALIZING);
2722                         set_bit(__QLCNIC_START_FW, &adapter->state);
2723                         QLCDB(adapter, DRV, "Restarting fw\n");
2724                         qlcnic_idc_debug_info(adapter, 0);
2725                         val = QLC_SHARED_REG_RD32(adapter,
2726                                                   QLCNIC_CRB_DRV_STATE);
2727                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2728                         QLC_SHARED_REG_WR32(adapter,
2729                                             QLCNIC_CRB_DRV_STATE, val);
2730                 }
2731
2732                 qlcnic_api_unlock(adapter);
2733
2734                 rtnl_lock();
2735                 if (adapter->ahw->fw_dump.enable &&
2736                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2737                         QLCDB(adapter, DRV, "Take FW dump\n");
2738                         qlcnic_dump_fw(adapter);
2739                         adapter->flags |= QLCNIC_FW_HANG;
2740                 }
2741                 rtnl_unlock();
2742
2743                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
2744                 if (!adapter->nic_ops->start_firmware(adapter)) {
2745                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2746                         adapter->fw_wait_cnt = 0;
2747                         return;
2748                 }
2749                 goto err_ret;
2750         }
2751
2752         qlcnic_api_unlock(adapter);
2753
2754 wait_npar:
2755         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2756         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
2757
2758         switch (dev_state) {
2759         case QLCNIC_DEV_READY:
2760                 if (!qlcnic_start_firmware(adapter)) {
2761                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2762                         adapter->fw_wait_cnt = 0;
2763                         return;
2764                 }
2765         case QLCNIC_DEV_FAILED:
2766                 break;
2767         default:
2768                 qlcnic_schedule_work(adapter,
2769                         qlcnic_fwinit_work, FW_POLL_DELAY);
2770                 return;
2771         }
2772
2773 err_ret:
2774         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2775                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
2776         netif_device_attach(adapter->netdev);
2777         qlcnic_clr_all_drv_state(adapter, 0);
2778 }
2779
2780 static void
2781 qlcnic_detach_work(struct work_struct *work)
2782 {
2783         struct qlcnic_adapter *adapter = container_of(work,
2784                         struct qlcnic_adapter, fw_work.work);
2785         struct net_device *netdev = adapter->netdev;
2786         u32 status;
2787
2788         netif_device_detach(netdev);
2789
2790         /* Dont grab rtnl lock during Quiscent mode */
2791         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2792                 if (netif_running(netdev))
2793                         __qlcnic_down(adapter, netdev);
2794         } else
2795                 qlcnic_down(adapter, netdev);
2796
2797         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2798
2799         if (status & QLCNIC_RCODE_FATAL_ERROR) {
2800                 dev_err(&adapter->pdev->dev,
2801                         "Detaching the device: peg halt status1=0x%x\n",
2802                                         status);
2803
2804                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
2805                         dev_err(&adapter->pdev->dev,
2806                         "On board active cooling fan failed. "
2807                                 "Device has been halted.\n");
2808                         dev_err(&adapter->pdev->dev,
2809                                 "Replace the adapter.\n");
2810                 }
2811
2812                 goto err_ret;
2813         }
2814
2815         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
2816                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
2817                         adapter->ahw->temp);
2818                 goto err_ret;
2819         }
2820
2821         /* Dont ack if this instance is the reset owner */
2822         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2823                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
2824                         dev_err(&adapter->pdev->dev,
2825                                 "Failed to set driver state,"
2826                                         "detaching the device.\n");
2827                         goto err_ret;
2828                 }
2829         }
2830
2831         adapter->fw_wait_cnt = 0;
2832
2833         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2834
2835         return;
2836
2837 err_ret:
2838         netif_device_attach(netdev);
2839         qlcnic_clr_all_drv_state(adapter, 1);
2840 }
2841
2842 /*Transit NPAR state to NON Operational */
2843 static void
2844 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
2845 {
2846         u32 state;
2847
2848         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2849         if (state == QLCNIC_DEV_NPAR_NON_OPER)
2850                 return;
2851
2852         if (qlcnic_api_lock(adapter))
2853                 return;
2854         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2855                             QLCNIC_DEV_NPAR_NON_OPER);
2856         qlcnic_api_unlock(adapter);
2857 }
2858
2859 void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter, u32 key)
2860 {
2861         u32 state, xg_val = 0, gb_val = 0;
2862
2863         qlcnic_xg_set_xg0_mask(xg_val);
2864         qlcnic_xg_set_xg1_mask(xg_val);
2865         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
2866         qlcnic_gb_set_gb0_mask(gb_val);
2867         qlcnic_gb_set_gb1_mask(gb_val);
2868         qlcnic_gb_set_gb2_mask(gb_val);
2869         qlcnic_gb_set_gb3_mask(gb_val);
2870         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
2871         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
2872                                 " on all ports\n");
2873         adapter->need_fw_reset = 1;
2874
2875         if (qlcnic_api_lock(adapter))
2876                 return;
2877
2878         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2879
2880         if (state == QLCNIC_DEV_READY) {
2881                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2882                                     QLCNIC_DEV_NEED_RESET);
2883                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
2884                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
2885                 qlcnic_idc_debug_info(adapter, 0);
2886         }
2887
2888         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2889                             QLCNIC_DEV_NPAR_NON_OPER);
2890         qlcnic_api_unlock(adapter);
2891 }
2892
2893 /* Transit to NPAR READY state from NPAR NOT READY state */
2894 static void
2895 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
2896 {
2897         if (qlcnic_api_lock(adapter))
2898                 return;
2899
2900         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2901                             QLCNIC_DEV_NPAR_OPER);
2902         QLCDB(adapter, DRV, "NPAR operational state set\n");
2903
2904         qlcnic_api_unlock(adapter);
2905 }
2906
2907 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2908                           work_func_t func, int delay)
2909 {
2910         if (test_bit(__QLCNIC_AER, &adapter->state))
2911                 return;
2912
2913         INIT_DELAYED_WORK(&adapter->fw_work, func);
2914         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
2915                            round_jiffies_relative(delay));
2916 }
2917
2918 static void
2919 qlcnic_attach_work(struct work_struct *work)
2920 {
2921         struct qlcnic_adapter *adapter = container_of(work,
2922                                 struct qlcnic_adapter, fw_work.work);
2923         struct net_device *netdev = adapter->netdev;
2924         u32 npar_state;
2925
2926         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
2927                 npar_state = QLC_SHARED_REG_RD32(adapter,
2928                                                  QLCNIC_CRB_DEV_NPAR_STATE);
2929                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
2930                         qlcnic_clr_all_drv_state(adapter, 0);
2931                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
2932                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
2933                                                         FW_POLL_DELAY);
2934                 else
2935                         goto attach;
2936                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
2937                 return;
2938         }
2939 attach:
2940         if (netif_running(netdev)) {
2941                 if (qlcnic_up(adapter, netdev))
2942                         goto done;
2943
2944                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2945         }
2946
2947 done:
2948         netif_device_attach(netdev);
2949         adapter->fw_fail_cnt = 0;
2950         adapter->flags &= ~QLCNIC_FW_HANG;
2951         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2952
2953         if (!qlcnic_clr_drv_state(adapter))
2954                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2955                                                         FW_POLL_DELAY);
2956 }
2957
2958 static int
2959 qlcnic_check_health(struct qlcnic_adapter *adapter)
2960 {
2961         u32 state = 0, heartbeat;
2962         u32 peg_status;
2963
2964         if (qlcnic_check_temp(adapter))
2965                 goto detach;
2966
2967         if (adapter->need_fw_reset)
2968                 qlcnic_dev_request_reset(adapter, 0);
2969
2970         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2971         if (state == QLCNIC_DEV_NEED_RESET) {
2972                 qlcnic_set_npar_non_operational(adapter);
2973                 adapter->need_fw_reset = 1;
2974         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
2975                 goto detach;
2976
2977         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
2978         if (heartbeat != adapter->heartbeat) {
2979                 adapter->heartbeat = heartbeat;
2980                 adapter->fw_fail_cnt = 0;
2981                 if (adapter->need_fw_reset)
2982                         goto detach;
2983
2984                 if (adapter->ahw->reset_context && qlcnic_auto_fw_reset) {
2985                         qlcnic_reset_hw_context(adapter);
2986                         adapter->netdev->trans_start = jiffies;
2987                 }
2988
2989                 return 0;
2990         }
2991
2992         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2993                 return 0;
2994
2995         adapter->flags |= QLCNIC_FW_HANG;
2996
2997         qlcnic_dev_request_reset(adapter, 0);
2998
2999         if (qlcnic_auto_fw_reset)
3000                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3001
3002         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3003         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3004         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3005                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3006                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3007                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3008                         "PEG_NET_4_PC: 0x%x\n",
3009                         peg_status,
3010                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3011                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c),
3012                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c),
3013                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c),
3014                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c),
3015                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c));
3016         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3017                 dev_err(&adapter->pdev->dev,
3018                         "Firmware aborted with error code 0x00006700. "
3019                                 "Device is being reset.\n");
3020 detach:
3021         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3022                 QLCNIC_DEV_NEED_RESET;
3023
3024         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3025                                                       &adapter->state)) {
3026
3027                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3028                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3029         }
3030
3031         return 1;
3032 }
3033
3034 static void
3035 qlcnic_fw_poll_work(struct work_struct *work)
3036 {
3037         struct qlcnic_adapter *adapter = container_of(work,
3038                                 struct qlcnic_adapter, fw_work.work);
3039
3040         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3041                 goto reschedule;
3042
3043
3044         if (qlcnic_check_health(adapter))
3045                 return;
3046
3047         if (adapter->fhash.fnum)
3048                 qlcnic_prune_lb_filters(adapter);
3049
3050 reschedule:
3051         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3052 }
3053
3054 static int qlcnic_is_first_func(struct pci_dev *pdev)
3055 {
3056         struct pci_dev *oth_pdev;
3057         int val = pdev->devfn;
3058
3059         while (val-- > 0) {
3060                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3061                         (pdev->bus), pdev->bus->number,
3062                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3063                 if (!oth_pdev)
3064                         continue;
3065
3066                 if (oth_pdev->current_state != PCI_D3cold) {
3067                         pci_dev_put(oth_pdev);
3068                         return 0;
3069                 }
3070                 pci_dev_put(oth_pdev);
3071         }
3072         return 1;
3073 }
3074
3075 static int qlcnic_attach_func(struct pci_dev *pdev)
3076 {
3077         int err, first_func;
3078         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3079         struct net_device *netdev = adapter->netdev;
3080
3081         pdev->error_state = pci_channel_io_normal;
3082
3083         err = pci_enable_device(pdev);
3084         if (err)
3085                 return err;
3086
3087         pci_set_power_state(pdev, PCI_D0);
3088         pci_set_master(pdev);
3089         pci_restore_state(pdev);
3090
3091         first_func = qlcnic_is_first_func(pdev);
3092
3093         if (qlcnic_api_lock(adapter))
3094                 return -EINVAL;
3095
3096         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3097                 adapter->need_fw_reset = 1;
3098                 set_bit(__QLCNIC_START_FW, &adapter->state);
3099                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3100                                     QLCNIC_DEV_INITIALIZING);
3101                 QLCDB(adapter, DRV, "Restarting fw\n");
3102         }
3103         qlcnic_api_unlock(adapter);
3104
3105         err = qlcnic_start_firmware(adapter);
3106         if (err)
3107                 return err;
3108
3109         qlcnic_clr_drv_state(adapter);
3110         kfree(adapter->msix_entries);
3111         adapter->msix_entries = NULL;
3112         err = qlcnic_setup_intr(adapter, 0);
3113
3114         if (err) {
3115                 kfree(adapter->msix_entries);
3116                 netdev_err(netdev, "failed to setup interrupt\n");
3117                 return err;
3118         }
3119
3120         if (qlcnic_83xx_check(adapter)) {
3121                 /* register for NIC IDC AEN Events */
3122                 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3123                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3124                 if (err) {
3125                         dev_err(&adapter->pdev->dev,
3126                                 "failed to setup mbx interrupt\n");
3127                         qlcnic_clr_all_drv_state(adapter, 1);
3128                         clear_bit(__QLCNIC_AER, &adapter->state);
3129                         goto done;
3130                 }
3131         }
3132
3133         if (netif_running(netdev)) {
3134                 err = qlcnic_attach(adapter);
3135                 if (err) {
3136                         qlcnic_clr_all_drv_state(adapter, 1);
3137                         clear_bit(__QLCNIC_AER, &adapter->state);
3138                         netif_device_attach(netdev);
3139                         return err;
3140                 }
3141
3142                 err = qlcnic_up(adapter, netdev);
3143                 if (err)
3144                         goto done;
3145
3146                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3147         }
3148  done:
3149         netif_device_attach(netdev);
3150         return err;
3151 }
3152
3153 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3154                                                 pci_channel_state_t state)
3155 {
3156         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3157         struct net_device *netdev = adapter->netdev;
3158
3159         if (state == pci_channel_io_perm_failure)
3160                 return PCI_ERS_RESULT_DISCONNECT;
3161
3162         if (state == pci_channel_io_normal)
3163                 return PCI_ERS_RESULT_RECOVERED;
3164
3165         set_bit(__QLCNIC_AER, &adapter->state);
3166         netif_device_detach(netdev);
3167
3168         cancel_delayed_work_sync(&adapter->fw_work);
3169
3170         if (netif_running(netdev))
3171                 qlcnic_down(adapter, netdev);
3172
3173         if (qlcnic_83xx_check(adapter)) {
3174                 qlcnic_83xx_free_mbx_intr(adapter);
3175                 qlcnic_83xx_register_nic_idc_func(adapter, 0);
3176                 cancel_delayed_work_sync(&adapter->idc_aen_work);
3177         }
3178
3179         qlcnic_detach(adapter);
3180         qlcnic_teardown_intr(adapter);
3181
3182         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3183
3184         pci_save_state(pdev);
3185         pci_disable_device(pdev);
3186
3187         return PCI_ERS_RESULT_NEED_RESET;
3188 }
3189
3190 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3191 {
3192         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3193                                 PCI_ERS_RESULT_RECOVERED;
3194 }
3195
3196 static void qlcnic_io_resume(struct pci_dev *pdev)
3197 {
3198         u32 state;
3199         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3200
3201         pci_cleanup_aer_uncorrect_error_status(pdev);
3202         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3203         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3204                                                             &adapter->state))
3205                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3206                                                 FW_POLL_DELAY);
3207 }
3208
3209 static int
3210 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3211 {
3212         int err;
3213
3214         err = qlcnic_can_start_firmware(adapter);
3215         if (err)
3216                 return err;
3217
3218         err = qlcnic_check_npar_opertional(adapter);
3219         if (err)
3220                 return err;
3221
3222         err = qlcnic_initialize_nic(adapter);
3223         if (err)
3224                 return err;
3225
3226         qlcnic_check_options(adapter);
3227
3228         err = qlcnic_set_eswitch_port_config(adapter);
3229         if (err)
3230                 return err;
3231
3232         adapter->need_fw_reset = 0;
3233
3234         return err;
3235 }
3236
3237 int qlcnic_validate_max_rss(u8 max_hw, u8 val)
3238 {
3239         u32 max_allowed;
3240
3241         if (max_hw > QLC_MAX_SDS_RINGS) {
3242                 max_hw = QLC_MAX_SDS_RINGS;
3243                 pr_info("max rss reset to %d\n", QLC_MAX_SDS_RINGS);
3244         }
3245
3246         max_allowed = rounddown_pow_of_two(min_t(int, max_hw,
3247                                                  num_online_cpus()));
3248         if ((val > max_allowed) || (val < 2) || !is_power_of_2(val)) {
3249                 pr_info("rss_ring valid range [2 - %x] in powers of 2\n",
3250                         max_allowed);
3251                 return -EINVAL;
3252         }
3253         return 0;
3254 }
3255
3256 int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data, size_t len)
3257 {
3258         int err;
3259         struct net_device *netdev = adapter->netdev;
3260
3261         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3262                 return -EBUSY;
3263
3264         netif_device_detach(netdev);
3265         if (netif_running(netdev))
3266                 __qlcnic_down(adapter, netdev);
3267
3268         qlcnic_detach(adapter);
3269
3270         if (qlcnic_83xx_check(adapter))
3271                 qlcnic_83xx_free_mbx_intr(adapter);
3272
3273         qlcnic_teardown_intr(adapter);
3274         err = qlcnic_setup_intr(adapter, data);
3275         if (err) {
3276                 kfree(adapter->msix_entries);
3277                 netdev_err(netdev, "failed to setup interrupt\n");
3278                 return err;
3279         }
3280
3281         if (qlcnic_83xx_check(adapter)) {
3282                 /* register for NIC IDC AEN Events */
3283                 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3284                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3285                 if (err) {
3286                         dev_err(&adapter->pdev->dev,
3287                                 "failed to setup mbx interrupt\n");
3288                         goto done;
3289                 }
3290         }
3291
3292         if (netif_running(netdev)) {
3293                 err = qlcnic_attach(adapter);
3294                 if (err)
3295                         goto done;
3296                 err = __qlcnic_up(adapter, netdev);
3297                 if (err)
3298                         goto done;
3299                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3300         }
3301         err = len;
3302  done:
3303         netif_device_attach(netdev);
3304         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3305         return err;
3306 }
3307
3308 #ifdef CONFIG_INET
3309
3310 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
3311
3312 static void
3313 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
3314                         struct net_device *dev, unsigned long event)
3315 {
3316         struct in_device *indev;
3317
3318         indev = in_dev_get(dev);
3319         if (!indev)
3320                 return;
3321
3322         for_ifa(indev) {
3323                 switch (event) {
3324                 case NETDEV_UP:
3325                         qlcnic_config_ipaddr(adapter,
3326                                         ifa->ifa_address, QLCNIC_IP_UP);
3327                         break;
3328                 case NETDEV_DOWN:
3329                         qlcnic_config_ipaddr(adapter,
3330                                         ifa->ifa_address, QLCNIC_IP_DOWN);
3331                         break;
3332                 default:
3333                         break;
3334                 }
3335         } endfor_ifa(indev);
3336
3337         in_dev_put(indev);
3338 }
3339
3340 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
3341 {
3342         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3343         struct net_device *dev;
3344         u16 vid;
3345
3346         qlcnic_config_indev_addr(adapter, netdev, event);
3347
3348         rcu_read_lock();
3349         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
3350                 dev = __vlan_find_dev_deep(netdev, vid);
3351                 if (!dev)
3352                         continue;
3353                 qlcnic_config_indev_addr(adapter, dev, event);
3354         }
3355         rcu_read_unlock();
3356 }
3357
3358 static int qlcnic_netdev_event(struct notifier_block *this,
3359                                  unsigned long event, void *ptr)
3360 {
3361         struct qlcnic_adapter *adapter;
3362         struct net_device *dev = (struct net_device *)ptr;
3363
3364 recheck:
3365         if (dev == NULL)
3366                 goto done;
3367
3368         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3369                 dev = vlan_dev_real_dev(dev);
3370                 goto recheck;
3371         }
3372
3373         if (!is_qlcnic_netdev(dev))
3374                 goto done;
3375
3376         adapter = netdev_priv(dev);
3377
3378         if (!adapter)
3379                 goto done;
3380
3381         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3382                 goto done;
3383
3384         qlcnic_config_indev_addr(adapter, dev, event);
3385 done:
3386         return NOTIFY_DONE;
3387 }
3388
3389 static int
3390 qlcnic_inetaddr_event(struct notifier_block *this,
3391                 unsigned long event, void *ptr)
3392 {
3393         struct qlcnic_adapter *adapter;
3394         struct net_device *dev;
3395
3396         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3397
3398         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3399
3400 recheck:
3401         if (dev == NULL)
3402                 goto done;
3403
3404         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3405                 dev = vlan_dev_real_dev(dev);
3406                 goto recheck;
3407         }
3408
3409         if (!is_qlcnic_netdev(dev))
3410                 goto done;
3411
3412         adapter = netdev_priv(dev);
3413
3414         if (!adapter)
3415                 goto done;
3416
3417         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3418                 goto done;
3419
3420         switch (event) {
3421         case NETDEV_UP:
3422                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
3423
3424                 break;
3425         case NETDEV_DOWN:
3426                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
3427
3428                 break;
3429         default:
3430                 break;
3431         }
3432
3433 done:
3434         return NOTIFY_DONE;
3435 }
3436
3437 static struct notifier_block    qlcnic_netdev_cb = {
3438         .notifier_call = qlcnic_netdev_event,
3439 };
3440
3441 static struct notifier_block qlcnic_inetaddr_cb = {
3442         .notifier_call = qlcnic_inetaddr_event,
3443 };
3444 #else
3445 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
3446 { }
3447 #endif
3448 static const struct pci_error_handlers qlcnic_err_handler = {
3449         .error_detected = qlcnic_io_error_detected,
3450         .slot_reset = qlcnic_io_slot_reset,
3451         .resume = qlcnic_io_resume,
3452 };
3453
3454 static struct pci_driver qlcnic_driver = {
3455         .name = qlcnic_driver_name,
3456         .id_table = qlcnic_pci_tbl,
3457         .probe = qlcnic_probe,
3458         .remove = qlcnic_remove,
3459 #ifdef CONFIG_PM
3460         .suspend = qlcnic_suspend,
3461         .resume = qlcnic_resume,
3462 #endif
3463         .shutdown = qlcnic_shutdown,
3464         .err_handler = &qlcnic_err_handler,
3465 #ifdef CONFIG_QLCNIC_SRIOV
3466         .sriov_configure = qlcnic_pci_sriov_configure,
3467 #endif
3468
3469 };
3470
3471 static int __init qlcnic_init_module(void)
3472 {
3473         int ret;
3474
3475         printk(KERN_INFO "%s\n", qlcnic_driver_string);
3476
3477 #ifdef CONFIG_INET
3478         register_netdevice_notifier(&qlcnic_netdev_cb);
3479         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
3480 #endif
3481
3482         ret = pci_register_driver(&qlcnic_driver);
3483         if (ret) {
3484 #ifdef CONFIG_INET
3485                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3486                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3487 #endif
3488         }
3489
3490         return ret;
3491 }
3492
3493 module_init(qlcnic_init_module);
3494
3495 static void __exit qlcnic_exit_module(void)
3496 {
3497         pci_unregister_driver(&qlcnic_driver);
3498
3499 #ifdef CONFIG_INET
3500         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3501         unregister_netdevice_notifier(&qlcnic_netdev_cb);
3502 #endif
3503 }
3504
3505 module_exit(qlcnic_exit_module);