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         smp_mb();
1429         spin_lock(&adapter->tx_clean_lock);
1430         netif_carrier_off(netdev);
1431         adapter->ahw->linkup = 0;
1432         netif_tx_disable(netdev);
1433
1434         qlcnic_free_mac_list(adapter);
1435
1436         if (adapter->fhash.fnum)
1437                 qlcnic_delete_lb_filters(adapter);
1438
1439         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1440
1441         qlcnic_napi_disable(adapter);
1442
1443         qlcnic_fw_destroy_ctx(adapter);
1444         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1445
1446         qlcnic_reset_rx_buffers_list(adapter);
1447         qlcnic_release_tx_buffers(adapter);
1448         spin_unlock(&adapter->tx_clean_lock);
1449 }
1450
1451 /* Usage: During suspend and firmware recovery module */
1452
1453 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1454 {
1455         rtnl_lock();
1456         if (netif_running(netdev))
1457                 __qlcnic_down(adapter, netdev);
1458         rtnl_unlock();
1459
1460 }
1461
1462 int
1463 qlcnic_attach(struct qlcnic_adapter *adapter)
1464 {
1465         struct net_device *netdev = adapter->netdev;
1466         struct pci_dev *pdev = adapter->pdev;
1467         int err;
1468
1469         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1470                 return 0;
1471
1472         err = qlcnic_napi_add(adapter, netdev);
1473         if (err)
1474                 return err;
1475
1476         err = qlcnic_alloc_sw_resources(adapter);
1477         if (err) {
1478                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1479                 goto err_out_napi_del;
1480         }
1481
1482         err = qlcnic_alloc_hw_resources(adapter);
1483         if (err) {
1484                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1485                 goto err_out_free_sw;
1486         }
1487
1488         err = qlcnic_request_irq(adapter);
1489         if (err) {
1490                 dev_err(&pdev->dev, "failed to setup interrupt\n");
1491                 goto err_out_free_hw;
1492         }
1493
1494         qlcnic_create_sysfs_entries(adapter);
1495
1496         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1497         return 0;
1498
1499 err_out_free_hw:
1500         qlcnic_free_hw_resources(adapter);
1501 err_out_free_sw:
1502         qlcnic_free_sw_resources(adapter);
1503 err_out_napi_del:
1504         qlcnic_napi_del(adapter);
1505         return err;
1506 }
1507
1508 void qlcnic_detach(struct qlcnic_adapter *adapter)
1509 {
1510         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1511                 return;
1512
1513         qlcnic_remove_sysfs_entries(adapter);
1514
1515         qlcnic_free_hw_resources(adapter);
1516         qlcnic_release_rx_buffers(adapter);
1517         qlcnic_free_irq(adapter);
1518         qlcnic_napi_del(adapter);
1519         qlcnic_free_sw_resources(adapter);
1520
1521         adapter->is_up = 0;
1522 }
1523
1524 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1525 {
1526         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1527         struct qlcnic_host_sds_ring *sds_ring;
1528         int ring;
1529
1530         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1531         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1532                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1533                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1534                         qlcnic_disable_int(sds_ring);
1535                 }
1536         }
1537
1538         qlcnic_fw_destroy_ctx(adapter);
1539
1540         qlcnic_detach(adapter);
1541
1542         adapter->ahw->diag_test = 0;
1543         adapter->max_sds_rings = max_sds_rings;
1544
1545         if (qlcnic_attach(adapter))
1546                 goto out;
1547
1548         if (netif_running(netdev))
1549                 __qlcnic_up(adapter, netdev);
1550 out:
1551         netif_device_attach(netdev);
1552 }
1553
1554 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
1555 {
1556         int err = 0;
1557         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
1558                                 GFP_KERNEL);
1559         if (!adapter->recv_ctx) {
1560                 err = -ENOMEM;
1561                 goto err_out;
1562         }
1563         /* Initialize interrupt coalesce parameters */
1564         adapter->ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1565         adapter->ahw->coal.rx_time_us = QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
1566         adapter->ahw->coal.rx_packets = QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
1567         /* clear stats */
1568         memset(&adapter->stats, 0, sizeof(adapter->stats));
1569 err_out:
1570         return err;
1571 }
1572
1573 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
1574 {
1575         kfree(adapter->recv_ctx);
1576         adapter->recv_ctx = NULL;
1577
1578         if (adapter->ahw->fw_dump.tmpl_hdr) {
1579                 vfree(adapter->ahw->fw_dump.tmpl_hdr);
1580                 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1581         }
1582
1583         kfree(adapter->ahw->reset.buff);
1584         adapter->ahw->fw_dump.tmpl_hdr = NULL;
1585 }
1586
1587 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1588 {
1589         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1590         struct qlcnic_host_sds_ring *sds_ring;
1591         struct qlcnic_host_rds_ring *rds_ring;
1592         int ring;
1593         int ret;
1594
1595         netif_device_detach(netdev);
1596
1597         if (netif_running(netdev))
1598                 __qlcnic_down(adapter, netdev);
1599
1600         qlcnic_detach(adapter);
1601
1602         adapter->max_sds_rings = 1;
1603         adapter->ahw->diag_test = test;
1604         adapter->ahw->linkup = 0;
1605
1606         ret = qlcnic_attach(adapter);
1607         if (ret) {
1608                 netif_device_attach(netdev);
1609                 return ret;
1610         }
1611
1612         ret = qlcnic_fw_create_ctx(adapter);
1613         if (ret) {
1614                 qlcnic_detach(adapter);
1615                 netif_device_attach(netdev);
1616                 return ret;
1617         }
1618
1619         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1620                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1621                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1622         }
1623
1624         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1625                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1626                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1627                         qlcnic_enable_int(sds_ring);
1628                 }
1629         }
1630
1631         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
1632                 adapter->ahw->loopback_state = 0;
1633                 qlcnic_linkevent_request(adapter, 1);
1634         }
1635
1636         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1637
1638         return 0;
1639 }
1640
1641 /* Reset context in hardware only */
1642 static int
1643 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1644 {
1645         struct net_device *netdev = adapter->netdev;
1646
1647         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1648                 return -EBUSY;
1649
1650         netif_device_detach(netdev);
1651
1652         qlcnic_down(adapter, netdev);
1653
1654         qlcnic_up(adapter, netdev);
1655
1656         netif_device_attach(netdev);
1657
1658         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1659         dev_err(&adapter->pdev->dev, "%s:\n", __func__);
1660         return 0;
1661 }
1662
1663 int
1664 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1665 {
1666         int err = 0;
1667         struct net_device *netdev = adapter->netdev;
1668
1669         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1670                 return -EBUSY;
1671
1672         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1673
1674                 netif_device_detach(netdev);
1675
1676                 if (netif_running(netdev))
1677                         __qlcnic_down(adapter, netdev);
1678
1679                 qlcnic_detach(adapter);
1680
1681                 if (netif_running(netdev)) {
1682                         err = qlcnic_attach(adapter);
1683                         if (!err) {
1684                                 __qlcnic_up(adapter, netdev);
1685                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1686                         }
1687                 }
1688
1689                 netif_device_attach(netdev);
1690         }
1691
1692         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1693         return err;
1694 }
1695
1696 int
1697 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
1698                     int pci_using_dac)
1699 {
1700         int err;
1701         struct pci_dev *pdev = adapter->pdev;
1702
1703         adapter->rx_csum = 1;
1704         adapter->ahw->mc_enabled = 0;
1705         adapter->ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
1706
1707         netdev->netdev_ops         = &qlcnic_netdev_ops;
1708         netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
1709
1710         qlcnic_change_mtu(netdev, netdev->mtu);
1711
1712         SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1713
1714         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
1715                              NETIF_F_IPV6_CSUM | NETIF_F_GRO |
1716                              NETIF_F_HW_VLAN_RX);
1717         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1718                                   NETIF_F_IPV6_CSUM);
1719
1720         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
1721                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
1722                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
1723         }
1724
1725         if (pci_using_dac) {
1726                 netdev->features |= NETIF_F_HIGHDMA;
1727                 netdev->vlan_features |= NETIF_F_HIGHDMA;
1728         }
1729
1730         if (qlcnic_vlan_tx_check(adapter))
1731                 netdev->features |= (NETIF_F_HW_VLAN_TX);
1732
1733         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1734                 netdev->features |= NETIF_F_LRO;
1735
1736         netdev->hw_features = netdev->features;
1737         netdev->irq = adapter->msix_entries[0].vector;
1738
1739         err = register_netdev(netdev);
1740         if (err) {
1741                 dev_err(&pdev->dev, "failed to register net device\n");
1742                 return err;
1743         }
1744
1745         return 0;
1746 }
1747
1748 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
1749 {
1750         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1751                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1752                 *pci_using_dac = 1;
1753         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1754                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1755                 *pci_using_dac = 0;
1756         else {
1757                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1758                 return -EIO;
1759         }
1760
1761         return 0;
1762 }
1763
1764 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
1765 {
1766         int ring;
1767         struct qlcnic_host_tx_ring *tx_ring;
1768
1769         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1770                 tx_ring = &adapter->tx_ring[ring];
1771                 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
1772                         vfree(tx_ring->cmd_buf_arr);
1773                         tx_ring->cmd_buf_arr = NULL;
1774                 }
1775         }
1776         if (adapter->tx_ring != NULL)
1777                 kfree(adapter->tx_ring);
1778 }
1779
1780 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
1781                           struct net_device *netdev)
1782 {
1783         int ring, vector, index;
1784         struct qlcnic_host_tx_ring *tx_ring;
1785         struct qlcnic_cmd_buffer *cmd_buf_arr;
1786
1787         tx_ring = kcalloc(adapter->max_drv_tx_rings,
1788                           sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
1789         if (tx_ring == NULL)
1790                 return -ENOMEM;
1791
1792         adapter->tx_ring = tx_ring;
1793
1794         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1795                 tx_ring = &adapter->tx_ring[ring];
1796                 tx_ring->num_desc = adapter->num_txd;
1797                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
1798                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
1799                 if (cmd_buf_arr == NULL) {
1800                         qlcnic_free_tx_rings(adapter);
1801                         return -ENOMEM;
1802                 }
1803                 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
1804                 tx_ring->cmd_buf_arr = cmd_buf_arr;
1805         }
1806
1807         if (qlcnic_83xx_check(adapter)) {
1808                 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1809                         tx_ring = &adapter->tx_ring[ring];
1810                         tx_ring->adapter = adapter;
1811                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
1812                                 index = adapter->max_sds_rings + ring;
1813                                 vector = adapter->msix_entries[index].vector;
1814                                 tx_ring->irq = vector;
1815                         }
1816                 }
1817         }
1818         return 0;
1819 }
1820
1821 static int
1822 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1823 {
1824         struct net_device *netdev = NULL;
1825         struct qlcnic_adapter *adapter = NULL;
1826         struct qlcnic_hardware_context *ahw;
1827         int err, pci_using_dac = -1;
1828         u32 capab2;
1829         char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
1830
1831         if (pdev->is_virtfn)
1832                 return -ENODEV;
1833
1834         err = pci_enable_device(pdev);
1835         if (err)
1836                 return err;
1837
1838         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1839                 err = -ENODEV;
1840                 goto err_out_disable_pdev;
1841         }
1842
1843         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
1844         if (err)
1845                 goto err_out_disable_pdev;
1846
1847         err = pci_request_regions(pdev, qlcnic_driver_name);
1848         if (err)
1849                 goto err_out_disable_pdev;
1850
1851         pci_set_master(pdev);
1852         pci_enable_pcie_error_reporting(pdev);
1853
1854         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
1855         if (!ahw)
1856                 goto err_out_free_res;
1857
1858         switch (ent->device) {
1859         case PCI_DEVICE_ID_QLOGIC_QLE824X:
1860                 ahw->hw_ops = &qlcnic_hw_ops;
1861                 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
1862                 break;
1863         case PCI_DEVICE_ID_QLOGIC_QLE834X:
1864                 qlcnic_83xx_register_map(ahw);
1865                 break;
1866         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
1867                 qlcnic_sriov_vf_register_map(ahw);
1868                 break;
1869         default:
1870                 goto err_out_free_hw_res;
1871         }
1872
1873         err = qlcnic_setup_pci_map(pdev, ahw);
1874         if (err)
1875                 goto err_out_free_hw_res;
1876
1877         netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1878         if (!netdev) {
1879                 err = -ENOMEM;
1880                 goto err_out_iounmap;
1881         }
1882
1883         SET_NETDEV_DEV(netdev, &pdev->dev);
1884
1885         adapter = netdev_priv(netdev);
1886         adapter->netdev  = netdev;
1887         adapter->pdev    = pdev;
1888         adapter->ahw = ahw;
1889
1890         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
1891         if (adapter->qlcnic_wq == NULL) {
1892                 dev_err(&pdev->dev, "Failed to create workqueue\n");
1893                 goto err_out_free_netdev;
1894         }
1895
1896         err = qlcnic_alloc_adapter_resources(adapter);
1897         if (err)
1898                 goto err_out_free_netdev;
1899
1900         adapter->dev_rst_time = jiffies;
1901         adapter->ahw->revision_id = pdev->revision;
1902         if (qlcnic_mac_learn == FDB_MAC_LEARN)
1903                 adapter->fdb_mac_learn = true;
1904         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
1905                 adapter->drv_mac_learn = true;
1906         adapter->max_drv_tx_rings = 1;
1907
1908         rwlock_init(&adapter->ahw->crb_lock);
1909         mutex_init(&adapter->ahw->mem_lock);
1910
1911         spin_lock_init(&adapter->tx_clean_lock);
1912         INIT_LIST_HEAD(&adapter->mac_list);
1913
1914         if (qlcnic_82xx_check(adapter)) {
1915                 qlcnic_check_vf(adapter, ent);
1916                 adapter->portnum = adapter->ahw->pci_func;
1917                 err = qlcnic_start_firmware(adapter);
1918                 if (err) {
1919                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
1920                         goto err_out_free_hw;
1921                 }
1922
1923                 err = qlcnic_setup_idc_param(adapter);
1924                 if (err)
1925                         goto err_out_free_hw;
1926
1927                 adapter->flags |= QLCNIC_NEED_FLR;
1928         } else if (qlcnic_83xx_check(adapter)) {
1929                 qlcnic_83xx_check_vf(adapter, ent);
1930                 adapter->portnum = adapter->ahw->pci_func;
1931                 err = qlcnic_83xx_init(adapter, pci_using_dac);
1932                 if (err) {
1933                         dev_err(&pdev->dev, "%s: failed\n", __func__);
1934                         goto err_out_free_hw;
1935                 }
1936                 if (qlcnic_sriov_vf_check(adapter))
1937                         return 0;
1938         } else {
1939                 dev_err(&pdev->dev,
1940                         "%s: failed. Please Reboot\n", __func__);
1941                 goto err_out_free_hw;
1942         }
1943
1944         if (qlcnic_read_mac_addr(adapter))
1945                 dev_warn(&pdev->dev, "failed to read mac addr\n");
1946
1947         if (adapter->portnum == 0) {
1948                 qlcnic_get_board_name(adapter, board_name);
1949
1950                 pr_info("%s: %s Board Chip rev 0x%x\n",
1951                         module_name(THIS_MODULE),
1952                         board_name, adapter->ahw->revision_id);
1953         }
1954
1955         if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
1956             !!qlcnic_use_msi)
1957                 dev_warn(&pdev->dev,
1958                          "83xx adapter do not support MSI interrupts\n");
1959
1960         err = qlcnic_setup_intr(adapter, 0);
1961         if (err) {
1962                 dev_err(&pdev->dev, "Failed to setup interrupt\n");
1963                 goto err_out_disable_msi;
1964         }
1965
1966         if (qlcnic_83xx_check(adapter)) {
1967                 err = qlcnic_83xx_setup_mbx_intr(adapter);
1968                 if (err)
1969                         goto err_out_disable_msi;
1970         }
1971
1972         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
1973         if (err)
1974                 goto err_out_disable_mbx_intr;
1975
1976         if (qlcnic_82xx_check(adapter)) {
1977                 if (ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1978                         capab2 = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
1979                         if (capab2 & QLCNIC_FW_CAPABILITY_2_OCBB)
1980                                 qlcnic_fw_cmd_set_drv_version(adapter);
1981                 }
1982         }
1983
1984         pci_set_drvdata(pdev, adapter);
1985
1986         if (qlcnic_82xx_check(adapter))
1987                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
1988                                      FW_POLL_DELAY);
1989
1990         switch (adapter->ahw->port_type) {
1991         case QLCNIC_GBE:
1992                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1993                                 adapter->netdev->name);
1994                 break;
1995         case QLCNIC_XGBE:
1996                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1997                                 adapter->netdev->name);
1998                 break;
1999         }
2000
2001         if (qlcnic_get_act_pci_func(adapter))
2002                 goto err_out_disable_mbx_intr;
2003
2004         if (adapter->drv_mac_learn)
2005                 qlcnic_alloc_lb_filters_mem(adapter);
2006
2007         qlcnic_add_sysfs(adapter);
2008
2009         return 0;
2010
2011 err_out_disable_mbx_intr:
2012         if (qlcnic_83xx_check(adapter))
2013                 qlcnic_83xx_free_mbx_intr(adapter);
2014
2015 err_out_disable_msi:
2016         qlcnic_teardown_intr(adapter);
2017         qlcnic_cancel_idc_work(adapter);
2018         qlcnic_clr_all_drv_state(adapter, 0);
2019
2020 err_out_free_hw:
2021         qlcnic_free_adapter_resources(adapter);
2022
2023 err_out_free_netdev:
2024         free_netdev(netdev);
2025
2026 err_out_iounmap:
2027         qlcnic_cleanup_pci_map(adapter);
2028
2029 err_out_free_hw_res:
2030         kfree(ahw);
2031
2032 err_out_free_res:
2033         pci_release_regions(pdev);
2034
2035 err_out_disable_pdev:
2036         pci_set_drvdata(pdev, NULL);
2037         pci_disable_device(pdev);
2038         return err;
2039 }
2040
2041 static void qlcnic_remove(struct pci_dev *pdev)
2042 {
2043         struct qlcnic_adapter *adapter;
2044         struct net_device *netdev;
2045         struct qlcnic_hardware_context *ahw;
2046
2047         adapter = pci_get_drvdata(pdev);
2048         if (adapter == NULL)
2049                 return;
2050
2051         netdev = adapter->netdev;
2052         qlcnic_sriov_pf_disable(adapter);
2053
2054         qlcnic_cancel_idc_work(adapter);
2055         ahw = adapter->ahw;
2056
2057         unregister_netdev(netdev);
2058         qlcnic_sriov_cleanup(adapter);
2059
2060         if (qlcnic_83xx_check(adapter)) {
2061                 qlcnic_83xx_free_mbx_intr(adapter);
2062                 qlcnic_83xx_register_nic_idc_func(adapter, 0);
2063                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2064         }
2065
2066         qlcnic_detach(adapter);
2067
2068         if (adapter->npars != NULL)
2069                 kfree(adapter->npars);
2070         if (adapter->eswitch != NULL)
2071                 kfree(adapter->eswitch);
2072
2073         if (qlcnic_82xx_check(adapter))
2074                 qlcnic_clr_all_drv_state(adapter, 0);
2075
2076         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2077
2078         qlcnic_free_lb_filters_mem(adapter);
2079
2080         qlcnic_teardown_intr(adapter);
2081
2082         qlcnic_remove_sysfs(adapter);
2083
2084         qlcnic_cleanup_pci_map(adapter);
2085
2086         qlcnic_release_firmware(adapter);
2087
2088         pci_disable_pcie_error_reporting(pdev);
2089         pci_release_regions(pdev);
2090         pci_disable_device(pdev);
2091         pci_set_drvdata(pdev, NULL);
2092
2093         if (adapter->qlcnic_wq) {
2094                 destroy_workqueue(adapter->qlcnic_wq);
2095                 adapter->qlcnic_wq = NULL;
2096         }
2097         qlcnic_free_adapter_resources(adapter);
2098         kfree(ahw);
2099         free_netdev(netdev);
2100 }
2101 static int __qlcnic_shutdown(struct pci_dev *pdev)
2102 {
2103         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2104         struct net_device *netdev = adapter->netdev;
2105         int retval;
2106
2107         netif_device_detach(netdev);
2108
2109         qlcnic_cancel_idc_work(adapter);
2110
2111         if (netif_running(netdev))
2112                 qlcnic_down(adapter, netdev);
2113
2114         if (qlcnic_82xx_check(adapter))
2115                 qlcnic_clr_all_drv_state(adapter, 0);
2116
2117         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2118
2119         retval = pci_save_state(pdev);
2120         if (retval)
2121                 return retval;
2122         if (qlcnic_82xx_check(adapter)) {
2123                 if (qlcnic_wol_supported(adapter)) {
2124                         pci_enable_wake(pdev, PCI_D3cold, 1);
2125                         pci_enable_wake(pdev, PCI_D3hot, 1);
2126                 }
2127         }
2128
2129         return 0;
2130 }
2131
2132 static void qlcnic_shutdown(struct pci_dev *pdev)
2133 {
2134         if (__qlcnic_shutdown(pdev))
2135                 return;
2136
2137         pci_disable_device(pdev);
2138 }
2139
2140 #ifdef CONFIG_PM
2141 static int
2142 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2143 {
2144         int retval;
2145
2146         retval = __qlcnic_shutdown(pdev);
2147         if (retval)
2148                 return retval;
2149
2150         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2151         return 0;
2152 }
2153
2154 static int
2155 qlcnic_resume(struct pci_dev *pdev)
2156 {
2157         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2158         struct net_device *netdev = adapter->netdev;
2159         int err;
2160
2161         err = pci_enable_device(pdev);
2162         if (err)
2163                 return err;
2164
2165         pci_set_power_state(pdev, PCI_D0);
2166         pci_set_master(pdev);
2167         pci_restore_state(pdev);
2168
2169         err = qlcnic_start_firmware(adapter);
2170         if (err) {
2171                 dev_err(&pdev->dev, "failed to start firmware\n");
2172                 return err;
2173         }
2174
2175         if (netif_running(netdev)) {
2176                 err = qlcnic_up(adapter, netdev);
2177                 if (err)
2178                         goto done;
2179
2180                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2181         }
2182 done:
2183         netif_device_attach(netdev);
2184         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
2185         return 0;
2186 }
2187 #endif
2188
2189 static int qlcnic_open(struct net_device *netdev)
2190 {
2191         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2192         int err;
2193
2194         netif_carrier_off(netdev);
2195
2196         err = qlcnic_attach(adapter);
2197         if (err)
2198                 return err;
2199
2200         err = __qlcnic_up(adapter, netdev);
2201         if (err)
2202                 goto err_out;
2203
2204         netif_start_queue(netdev);
2205
2206         return 0;
2207
2208 err_out:
2209         qlcnic_detach(adapter);
2210         return err;
2211 }
2212
2213 /*
2214  * qlcnic_close - Disables a network interface entry point
2215  */
2216 static int qlcnic_close(struct net_device *netdev)
2217 {
2218         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2219
2220         __qlcnic_down(adapter, netdev);
2221
2222         return 0;
2223 }
2224
2225 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2226 {
2227         void *head;
2228         int i;
2229         struct net_device *netdev = adapter->netdev;
2230         u32 filter_size = 0;
2231         u16 act_pci_func = 0;
2232
2233         if (adapter->fhash.fmax && adapter->fhash.fhead)
2234                 return;
2235
2236         act_pci_func = adapter->ahw->act_pci_func;
2237         spin_lock_init(&adapter->mac_learn_lock);
2238         spin_lock_init(&adapter->rx_mac_learn_lock);
2239
2240         if (qlcnic_82xx_check(adapter)) {
2241                 filter_size = QLCNIC_LB_MAX_FILTERS;
2242                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2243         } else {
2244                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2245                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2246         }
2247
2248         head = kcalloc(adapter->fhash.fbucket_size,
2249                        sizeof(struct hlist_head), GFP_ATOMIC);
2250
2251         if (!head)
2252                 return;
2253
2254         adapter->fhash.fmax = (filter_size / act_pci_func);
2255         adapter->fhash.fhead = head;
2256
2257         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2258                     act_pci_func, adapter->fhash.fmax);
2259
2260         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2261                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2262
2263         adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2264
2265         head = kcalloc(adapter->rx_fhash.fbucket_size,
2266                        sizeof(struct hlist_head), GFP_ATOMIC);
2267
2268         if (!head)
2269                 return;
2270
2271         adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2272         adapter->rx_fhash.fhead = head;
2273
2274         for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2275                 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2276 }
2277
2278 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2279 {
2280         if (adapter->fhash.fmax && adapter->fhash.fhead)
2281                 kfree(adapter->fhash.fhead);
2282
2283         adapter->fhash.fhead = NULL;
2284         adapter->fhash.fmax = 0;
2285
2286         if (adapter->rx_fhash.fmax && adapter->rx_fhash.fhead)
2287                 kfree(adapter->rx_fhash.fhead);
2288
2289         adapter->rx_fhash.fmax = 0;
2290         adapter->rx_fhash.fhead = NULL;
2291 }
2292
2293 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2294 {
2295         struct net_device *netdev = adapter->netdev;
2296         u32 temp_state, temp_val, temp = 0;
2297         int rv = 0;
2298
2299         if (qlcnic_83xx_check(adapter))
2300                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2301
2302         if (qlcnic_82xx_check(adapter))
2303                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2304
2305         temp_state = qlcnic_get_temp_state(temp);
2306         temp_val = qlcnic_get_temp_val(temp);
2307
2308         if (temp_state == QLCNIC_TEMP_PANIC) {
2309                 dev_err(&netdev->dev,
2310                        "Device temperature %d degrees C exceeds"
2311                        " maximum allowed. Hardware has been shut down.\n",
2312                        temp_val);
2313                 rv = 1;
2314         } else if (temp_state == QLCNIC_TEMP_WARN) {
2315                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2316                         dev_err(&netdev->dev,
2317                                "Device temperature %d degrees C "
2318                                "exceeds operating range."
2319                                " Immediate action needed.\n",
2320                                temp_val);
2321                 }
2322         } else {
2323                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2324                         dev_info(&netdev->dev,
2325                                "Device temperature is now %d degrees C"
2326                                " in normal range.\n", temp_val);
2327                 }
2328         }
2329         adapter->ahw->temp = temp_state;
2330         return rv;
2331 }
2332
2333 static void qlcnic_tx_timeout(struct net_device *netdev)
2334 {
2335         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2336
2337         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2338                 return;
2339
2340         dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2341
2342         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
2343                 adapter->need_fw_reset = 1;
2344         else
2345                 adapter->ahw->reset_context = 1;
2346 }
2347
2348 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2349 {
2350         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2351         struct net_device_stats *stats = &netdev->stats;
2352
2353         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2354         stats->tx_packets = adapter->stats.xmitfinished;
2355         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2356         stats->tx_bytes = adapter->stats.txbytes;
2357         stats->rx_dropped = adapter->stats.rxdropped;
2358         stats->tx_dropped = adapter->stats.txdropped;
2359
2360         return stats;
2361 }
2362
2363 irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
2364 {
2365         u32 status;
2366
2367         status = readl(adapter->isr_int_vec);
2368
2369         if (!(status & adapter->ahw->int_vec_bit))
2370                 return IRQ_NONE;
2371
2372         /* check interrupt state machine, to be sure */
2373         status = readl(adapter->crb_int_state_reg);
2374         if (!ISR_LEGACY_INT_TRIGGERED(status))
2375                 return IRQ_NONE;
2376
2377         writel(0xffffffff, adapter->tgt_status_reg);
2378         /* read twice to ensure write is flushed */
2379         readl(adapter->isr_int_vec);
2380         readl(adapter->isr_int_vec);
2381
2382         return IRQ_HANDLED;
2383 }
2384
2385 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2386 {
2387         struct qlcnic_host_sds_ring *sds_ring = data;
2388         struct qlcnic_adapter *adapter = sds_ring->adapter;
2389
2390         if (adapter->flags & QLCNIC_MSIX_ENABLED)
2391                 goto done;
2392         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2393                 writel(0xffffffff, adapter->tgt_status_reg);
2394                 goto done;
2395         }
2396
2397         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2398                 return IRQ_NONE;
2399
2400 done:
2401         adapter->ahw->diag_cnt++;
2402         qlcnic_enable_int(sds_ring);
2403         return IRQ_HANDLED;
2404 }
2405
2406 static irqreturn_t qlcnic_intr(int irq, void *data)
2407 {
2408         struct qlcnic_host_sds_ring *sds_ring = data;
2409         struct qlcnic_adapter *adapter = sds_ring->adapter;
2410
2411         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2412                 return IRQ_NONE;
2413
2414         napi_schedule(&sds_ring->napi);
2415
2416         return IRQ_HANDLED;
2417 }
2418
2419 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2420 {
2421         struct qlcnic_host_sds_ring *sds_ring = data;
2422         struct qlcnic_adapter *adapter = sds_ring->adapter;
2423
2424         /* clear interrupt */
2425         writel(0xffffffff, adapter->tgt_status_reg);
2426
2427         napi_schedule(&sds_ring->napi);
2428         return IRQ_HANDLED;
2429 }
2430
2431 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2432 {
2433         struct qlcnic_host_sds_ring *sds_ring = data;
2434
2435         napi_schedule(&sds_ring->napi);
2436         return IRQ_HANDLED;
2437 }
2438
2439 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
2440 {
2441         struct qlcnic_host_tx_ring *tx_ring = data;
2442
2443         napi_schedule(&tx_ring->napi);
2444         return IRQ_HANDLED;
2445 }
2446
2447 #ifdef CONFIG_NET_POLL_CONTROLLER
2448 static void qlcnic_poll_controller(struct net_device *netdev)
2449 {
2450         int ring;
2451         struct qlcnic_host_sds_ring *sds_ring;
2452         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2453         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2454
2455         disable_irq(adapter->irq);
2456         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2457                 sds_ring = &recv_ctx->sds_rings[ring];
2458                 qlcnic_intr(adapter->irq, sds_ring);
2459         }
2460         enable_irq(adapter->irq);
2461 }
2462 #endif
2463
2464 static void
2465 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2466 {
2467         u32 val;
2468
2469         val = adapter->portnum & 0xf;
2470         val |= encoding << 7;
2471         val |= (jiffies - adapter->dev_rst_time) << 8;
2472
2473         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2474         adapter->dev_rst_time = jiffies;
2475 }
2476
2477 static int
2478 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2479 {
2480         u32  val;
2481
2482         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2483                         state != QLCNIC_DEV_NEED_QUISCENT);
2484
2485         if (qlcnic_api_lock(adapter))
2486                 return -EIO;
2487
2488         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2489
2490         if (state == QLCNIC_DEV_NEED_RESET)
2491                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2492         else if (state == QLCNIC_DEV_NEED_QUISCENT)
2493                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2494
2495         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2496
2497         qlcnic_api_unlock(adapter);
2498
2499         return 0;
2500 }
2501
2502 static int
2503 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2504 {
2505         u32  val;
2506
2507         if (qlcnic_api_lock(adapter))
2508                 return -EBUSY;
2509
2510         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2511         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2512         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2513
2514         qlcnic_api_unlock(adapter);
2515
2516         return 0;
2517 }
2518
2519 static void
2520 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2521 {
2522         u32  val;
2523
2524         if (qlcnic_api_lock(adapter))
2525                 goto err;
2526
2527         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2528         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2529         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2530
2531         if (failed) {
2532                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2533                                     QLCNIC_DEV_FAILED);
2534                 dev_info(&adapter->pdev->dev,
2535                                 "Device state set to Failed. Please Reboot\n");
2536         } else if (!(val & 0x11111111))
2537                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2538                                     QLCNIC_DEV_COLD);
2539
2540         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2541         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2542         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2543
2544         qlcnic_api_unlock(adapter);
2545 err:
2546         adapter->fw_fail_cnt = 0;
2547         adapter->flags &= ~QLCNIC_FW_HANG;
2548         clear_bit(__QLCNIC_START_FW, &adapter->state);
2549         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2550 }
2551
2552 /* Grab api lock, before checking state */
2553 static int
2554 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2555 {
2556         int act, state, active_mask;
2557         struct qlcnic_hardware_context *ahw = adapter->ahw;
2558
2559         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2560         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2561
2562         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
2563                 active_mask = (~(1 << (ahw->pci_func * 4)));
2564                 act = act & active_mask;
2565         }
2566
2567         if (((state & 0x11111111) == (act & 0x11111111)) ||
2568                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2569                 return 0;
2570         else
2571                 return 1;
2572 }
2573
2574 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2575 {
2576         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2577
2578         if (val != QLCNIC_DRV_IDC_VER) {
2579                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2580                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2581         }
2582
2583         return 0;
2584 }
2585
2586 static int
2587 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2588 {
2589         u32 val, prev_state;
2590         u8 dev_init_timeo = adapter->dev_init_timeo;
2591         u8 portnum = adapter->portnum;
2592         u8 ret;
2593
2594         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2595                 return 1;
2596
2597         if (qlcnic_api_lock(adapter))
2598                 return -1;
2599
2600         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2601         if (!(val & (1 << (portnum * 4)))) {
2602                 QLC_DEV_SET_REF_CNT(val, portnum);
2603                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2604         }
2605
2606         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2607         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2608
2609         switch (prev_state) {
2610         case QLCNIC_DEV_COLD:
2611                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2612                                     QLCNIC_DEV_INITIALIZING);
2613                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
2614                                     QLCNIC_DRV_IDC_VER);
2615                 qlcnic_idc_debug_info(adapter, 0);
2616                 qlcnic_api_unlock(adapter);
2617                 return 1;
2618
2619         case QLCNIC_DEV_READY:
2620                 ret = qlcnic_check_idc_ver(adapter);
2621                 qlcnic_api_unlock(adapter);
2622                 return ret;
2623
2624         case QLCNIC_DEV_NEED_RESET:
2625                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2626                 QLC_DEV_SET_RST_RDY(val, portnum);
2627                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2628                 break;
2629
2630         case QLCNIC_DEV_NEED_QUISCENT:
2631                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2632                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
2633                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2634                 break;
2635
2636         case QLCNIC_DEV_FAILED:
2637                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
2638                 qlcnic_api_unlock(adapter);
2639                 return -1;
2640
2641         case QLCNIC_DEV_INITIALIZING:
2642         case QLCNIC_DEV_QUISCENT:
2643                 break;
2644         }
2645
2646         qlcnic_api_unlock(adapter);
2647
2648         do {
2649                 msleep(1000);
2650                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2651
2652                 if (prev_state == QLCNIC_DEV_QUISCENT)
2653                         continue;
2654         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
2655
2656         if (!dev_init_timeo) {
2657                 dev_err(&adapter->pdev->dev,
2658                         "Waiting for device to initialize timeout\n");
2659                 return -1;
2660         }
2661
2662         if (qlcnic_api_lock(adapter))
2663                 return -1;
2664
2665         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2666         QLC_DEV_CLR_RST_QSCNT(val, portnum);
2667         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2668
2669         ret = qlcnic_check_idc_ver(adapter);
2670         qlcnic_api_unlock(adapter);
2671
2672         return ret;
2673 }
2674
2675 static void
2676 qlcnic_fwinit_work(struct work_struct *work)
2677 {
2678         struct qlcnic_adapter *adapter = container_of(work,
2679                         struct qlcnic_adapter, fw_work.work);
2680         u32 dev_state = 0xf;
2681         u32 val;
2682
2683         if (qlcnic_api_lock(adapter))
2684                 goto err_ret;
2685
2686         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2687         if (dev_state == QLCNIC_DEV_QUISCENT ||
2688             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2689                 qlcnic_api_unlock(adapter);
2690                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2691                                                 FW_POLL_DELAY * 2);
2692                 return;
2693         }
2694
2695         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
2696                 qlcnic_api_unlock(adapter);
2697                 goto wait_npar;
2698         }
2699
2700         if (dev_state == QLCNIC_DEV_INITIALIZING ||
2701             dev_state == QLCNIC_DEV_READY) {
2702                 dev_info(&adapter->pdev->dev, "Detected state change from "
2703                                 "DEV_NEED_RESET, skipping ack check\n");
2704                 goto skip_ack_check;
2705         }
2706
2707         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2708                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2709                                         adapter->reset_ack_timeo);
2710                 goto skip_ack_check;
2711         }
2712
2713         if (!qlcnic_check_drv_state(adapter)) {
2714 skip_ack_check:
2715                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2716
2717                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2718                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2719                                             QLCNIC_DEV_INITIALIZING);
2720                         set_bit(__QLCNIC_START_FW, &adapter->state);
2721                         QLCDB(adapter, DRV, "Restarting fw\n");
2722                         qlcnic_idc_debug_info(adapter, 0);
2723                         val = QLC_SHARED_REG_RD32(adapter,
2724                                                   QLCNIC_CRB_DRV_STATE);
2725                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2726                         QLC_SHARED_REG_WR32(adapter,
2727                                             QLCNIC_CRB_DRV_STATE, val);
2728                 }
2729
2730                 qlcnic_api_unlock(adapter);
2731
2732                 rtnl_lock();
2733                 if (adapter->ahw->fw_dump.enable &&
2734                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2735                         QLCDB(adapter, DRV, "Take FW dump\n");
2736                         qlcnic_dump_fw(adapter);
2737                         adapter->flags |= QLCNIC_FW_HANG;
2738                 }
2739                 rtnl_unlock();
2740
2741                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
2742                 if (!adapter->nic_ops->start_firmware(adapter)) {
2743                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2744                         adapter->fw_wait_cnt = 0;
2745                         return;
2746                 }
2747                 goto err_ret;
2748         }
2749
2750         qlcnic_api_unlock(adapter);
2751
2752 wait_npar:
2753         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2754         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
2755
2756         switch (dev_state) {
2757         case QLCNIC_DEV_READY:
2758                 if (!qlcnic_start_firmware(adapter)) {
2759                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2760                         adapter->fw_wait_cnt = 0;
2761                         return;
2762                 }
2763         case QLCNIC_DEV_FAILED:
2764                 break;
2765         default:
2766                 qlcnic_schedule_work(adapter,
2767                         qlcnic_fwinit_work, FW_POLL_DELAY);
2768                 return;
2769         }
2770
2771 err_ret:
2772         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2773                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
2774         netif_device_attach(adapter->netdev);
2775         qlcnic_clr_all_drv_state(adapter, 0);
2776 }
2777
2778 static void
2779 qlcnic_detach_work(struct work_struct *work)
2780 {
2781         struct qlcnic_adapter *adapter = container_of(work,
2782                         struct qlcnic_adapter, fw_work.work);
2783         struct net_device *netdev = adapter->netdev;
2784         u32 status;
2785
2786         netif_device_detach(netdev);
2787
2788         /* Dont grab rtnl lock during Quiscent mode */
2789         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2790                 if (netif_running(netdev))
2791                         __qlcnic_down(adapter, netdev);
2792         } else
2793                 qlcnic_down(adapter, netdev);
2794
2795         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2796
2797         if (status & QLCNIC_RCODE_FATAL_ERROR) {
2798                 dev_err(&adapter->pdev->dev,
2799                         "Detaching the device: peg halt status1=0x%x\n",
2800                                         status);
2801
2802                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
2803                         dev_err(&adapter->pdev->dev,
2804                         "On board active cooling fan failed. "
2805                                 "Device has been halted.\n");
2806                         dev_err(&adapter->pdev->dev,
2807                                 "Replace the adapter.\n");
2808                 }
2809
2810                 goto err_ret;
2811         }
2812
2813         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
2814                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
2815                         adapter->ahw->temp);
2816                 goto err_ret;
2817         }
2818
2819         /* Dont ack if this instance is the reset owner */
2820         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2821                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
2822                         dev_err(&adapter->pdev->dev,
2823                                 "Failed to set driver state,"
2824                                         "detaching the device.\n");
2825                         goto err_ret;
2826                 }
2827         }
2828
2829         adapter->fw_wait_cnt = 0;
2830
2831         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2832
2833         return;
2834
2835 err_ret:
2836         netif_device_attach(netdev);
2837         qlcnic_clr_all_drv_state(adapter, 1);
2838 }
2839
2840 /*Transit NPAR state to NON Operational */
2841 static void
2842 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
2843 {
2844         u32 state;
2845
2846         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2847         if (state == QLCNIC_DEV_NPAR_NON_OPER)
2848                 return;
2849
2850         if (qlcnic_api_lock(adapter))
2851                 return;
2852         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2853                             QLCNIC_DEV_NPAR_NON_OPER);
2854         qlcnic_api_unlock(adapter);
2855 }
2856
2857 void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter, u32 key)
2858 {
2859         u32 state, xg_val = 0, gb_val = 0;
2860
2861         qlcnic_xg_set_xg0_mask(xg_val);
2862         qlcnic_xg_set_xg1_mask(xg_val);
2863         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
2864         qlcnic_gb_set_gb0_mask(gb_val);
2865         qlcnic_gb_set_gb1_mask(gb_val);
2866         qlcnic_gb_set_gb2_mask(gb_val);
2867         qlcnic_gb_set_gb3_mask(gb_val);
2868         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
2869         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
2870                                 " on all ports\n");
2871         adapter->need_fw_reset = 1;
2872
2873         if (qlcnic_api_lock(adapter))
2874                 return;
2875
2876         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2877
2878         if (state == QLCNIC_DEV_READY) {
2879                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2880                                     QLCNIC_DEV_NEED_RESET);
2881                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
2882                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
2883                 qlcnic_idc_debug_info(adapter, 0);
2884         }
2885
2886         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2887                             QLCNIC_DEV_NPAR_NON_OPER);
2888         qlcnic_api_unlock(adapter);
2889 }
2890
2891 /* Transit to NPAR READY state from NPAR NOT READY state */
2892 static void
2893 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
2894 {
2895         if (qlcnic_api_lock(adapter))
2896                 return;
2897
2898         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2899                             QLCNIC_DEV_NPAR_OPER);
2900         QLCDB(adapter, DRV, "NPAR operational state set\n");
2901
2902         qlcnic_api_unlock(adapter);
2903 }
2904
2905 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2906                           work_func_t func, int delay)
2907 {
2908         if (test_bit(__QLCNIC_AER, &adapter->state))
2909                 return;
2910
2911         INIT_DELAYED_WORK(&adapter->fw_work, func);
2912         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
2913                            round_jiffies_relative(delay));
2914 }
2915
2916 static void
2917 qlcnic_attach_work(struct work_struct *work)
2918 {
2919         struct qlcnic_adapter *adapter = container_of(work,
2920                                 struct qlcnic_adapter, fw_work.work);
2921         struct net_device *netdev = adapter->netdev;
2922         u32 npar_state;
2923
2924         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
2925                 npar_state = QLC_SHARED_REG_RD32(adapter,
2926                                                  QLCNIC_CRB_DEV_NPAR_STATE);
2927                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
2928                         qlcnic_clr_all_drv_state(adapter, 0);
2929                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
2930                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
2931                                                         FW_POLL_DELAY);
2932                 else
2933                         goto attach;
2934                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
2935                 return;
2936         }
2937 attach:
2938         if (netif_running(netdev)) {
2939                 if (qlcnic_up(adapter, netdev))
2940                         goto done;
2941
2942                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2943         }
2944
2945 done:
2946         netif_device_attach(netdev);
2947         adapter->fw_fail_cnt = 0;
2948         adapter->flags &= ~QLCNIC_FW_HANG;
2949         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2950
2951         if (!qlcnic_clr_drv_state(adapter))
2952                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2953                                                         FW_POLL_DELAY);
2954 }
2955
2956 static int
2957 qlcnic_check_health(struct qlcnic_adapter *adapter)
2958 {
2959         u32 state = 0, heartbeat;
2960         u32 peg_status;
2961
2962         if (qlcnic_check_temp(adapter))
2963                 goto detach;
2964
2965         if (adapter->need_fw_reset)
2966                 qlcnic_dev_request_reset(adapter, 0);
2967
2968         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2969         if (state == QLCNIC_DEV_NEED_RESET) {
2970                 qlcnic_set_npar_non_operational(adapter);
2971                 adapter->need_fw_reset = 1;
2972         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
2973                 goto detach;
2974
2975         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
2976         if (heartbeat != adapter->heartbeat) {
2977                 adapter->heartbeat = heartbeat;
2978                 adapter->fw_fail_cnt = 0;
2979                 if (adapter->need_fw_reset)
2980                         goto detach;
2981
2982                 if (adapter->ahw->reset_context && qlcnic_auto_fw_reset) {
2983                         qlcnic_reset_hw_context(adapter);
2984                         adapter->netdev->trans_start = jiffies;
2985                 }
2986
2987                 return 0;
2988         }
2989
2990         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2991                 return 0;
2992
2993         adapter->flags |= QLCNIC_FW_HANG;
2994
2995         qlcnic_dev_request_reset(adapter, 0);
2996
2997         if (qlcnic_auto_fw_reset)
2998                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
2999
3000         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3001         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3002         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3003                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3004                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3005                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3006                         "PEG_NET_4_PC: 0x%x\n",
3007                         peg_status,
3008                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3009                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c),
3010                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c),
3011                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c),
3012                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c),
3013                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c));
3014         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3015                 dev_err(&adapter->pdev->dev,
3016                         "Firmware aborted with error code 0x00006700. "
3017                                 "Device is being reset.\n");
3018 detach:
3019         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3020                 QLCNIC_DEV_NEED_RESET;
3021
3022         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3023                                                       &adapter->state)) {
3024
3025                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3026                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3027         }
3028
3029         return 1;
3030 }
3031
3032 static void
3033 qlcnic_fw_poll_work(struct work_struct *work)
3034 {
3035         struct qlcnic_adapter *adapter = container_of(work,
3036                                 struct qlcnic_adapter, fw_work.work);
3037
3038         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3039                 goto reschedule;
3040
3041
3042         if (qlcnic_check_health(adapter))
3043                 return;
3044
3045         if (adapter->fhash.fnum)
3046                 qlcnic_prune_lb_filters(adapter);
3047
3048 reschedule:
3049         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3050 }
3051
3052 static int qlcnic_is_first_func(struct pci_dev *pdev)
3053 {
3054         struct pci_dev *oth_pdev;
3055         int val = pdev->devfn;
3056
3057         while (val-- > 0) {
3058                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3059                         (pdev->bus), pdev->bus->number,
3060                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3061                 if (!oth_pdev)
3062                         continue;
3063
3064                 if (oth_pdev->current_state != PCI_D3cold) {
3065                         pci_dev_put(oth_pdev);
3066                         return 0;
3067                 }
3068                 pci_dev_put(oth_pdev);
3069         }
3070         return 1;
3071 }
3072
3073 static int qlcnic_attach_func(struct pci_dev *pdev)
3074 {
3075         int err, first_func;
3076         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3077         struct net_device *netdev = adapter->netdev;
3078
3079         pdev->error_state = pci_channel_io_normal;
3080
3081         err = pci_enable_device(pdev);
3082         if (err)
3083                 return err;
3084
3085         pci_set_power_state(pdev, PCI_D0);
3086         pci_set_master(pdev);
3087         pci_restore_state(pdev);
3088
3089         first_func = qlcnic_is_first_func(pdev);
3090
3091         if (qlcnic_api_lock(adapter))
3092                 return -EINVAL;
3093
3094         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3095                 adapter->need_fw_reset = 1;
3096                 set_bit(__QLCNIC_START_FW, &adapter->state);
3097                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3098                                     QLCNIC_DEV_INITIALIZING);
3099                 QLCDB(adapter, DRV, "Restarting fw\n");
3100         }
3101         qlcnic_api_unlock(adapter);
3102
3103         err = qlcnic_start_firmware(adapter);
3104         if (err)
3105                 return err;
3106
3107         qlcnic_clr_drv_state(adapter);
3108         kfree(adapter->msix_entries);
3109         adapter->msix_entries = NULL;
3110         err = qlcnic_setup_intr(adapter, 0);
3111
3112         if (err) {
3113                 kfree(adapter->msix_entries);
3114                 netdev_err(netdev, "failed to setup interrupt\n");
3115                 return err;
3116         }
3117
3118         if (qlcnic_83xx_check(adapter)) {
3119                 /* register for NIC IDC AEN Events */
3120                 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3121                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3122                 if (err) {
3123                         dev_err(&adapter->pdev->dev,
3124                                 "failed to setup mbx interrupt\n");
3125                         qlcnic_clr_all_drv_state(adapter, 1);
3126                         clear_bit(__QLCNIC_AER, &adapter->state);
3127                         goto done;
3128                 }
3129         }
3130
3131         if (netif_running(netdev)) {
3132                 err = qlcnic_attach(adapter);
3133                 if (err) {
3134                         qlcnic_clr_all_drv_state(adapter, 1);
3135                         clear_bit(__QLCNIC_AER, &adapter->state);
3136                         netif_device_attach(netdev);
3137                         return err;
3138                 }
3139
3140                 err = qlcnic_up(adapter, netdev);
3141                 if (err)
3142                         goto done;
3143
3144                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3145         }
3146  done:
3147         netif_device_attach(netdev);
3148         return err;
3149 }
3150
3151 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3152                                                 pci_channel_state_t state)
3153 {
3154         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3155         struct net_device *netdev = adapter->netdev;
3156
3157         if (state == pci_channel_io_perm_failure)
3158                 return PCI_ERS_RESULT_DISCONNECT;
3159
3160         if (state == pci_channel_io_normal)
3161                 return PCI_ERS_RESULT_RECOVERED;
3162
3163         set_bit(__QLCNIC_AER, &adapter->state);
3164         netif_device_detach(netdev);
3165
3166         cancel_delayed_work_sync(&adapter->fw_work);
3167
3168         if (netif_running(netdev))
3169                 qlcnic_down(adapter, netdev);
3170
3171         if (qlcnic_83xx_check(adapter)) {
3172                 qlcnic_83xx_free_mbx_intr(adapter);
3173                 qlcnic_83xx_register_nic_idc_func(adapter, 0);
3174                 cancel_delayed_work_sync(&adapter->idc_aen_work);
3175         }
3176
3177         qlcnic_detach(adapter);
3178         qlcnic_teardown_intr(adapter);
3179
3180         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3181
3182         pci_save_state(pdev);
3183         pci_disable_device(pdev);
3184
3185         return PCI_ERS_RESULT_NEED_RESET;
3186 }
3187
3188 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3189 {
3190         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3191                                 PCI_ERS_RESULT_RECOVERED;
3192 }
3193
3194 static void qlcnic_io_resume(struct pci_dev *pdev)
3195 {
3196         u32 state;
3197         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3198
3199         pci_cleanup_aer_uncorrect_error_status(pdev);
3200         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3201         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3202                                                             &adapter->state))
3203                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3204                                                 FW_POLL_DELAY);
3205 }
3206
3207 static int
3208 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3209 {
3210         int err;
3211
3212         err = qlcnic_can_start_firmware(adapter);
3213         if (err)
3214                 return err;
3215
3216         err = qlcnic_check_npar_opertional(adapter);
3217         if (err)
3218                 return err;
3219
3220         err = qlcnic_initialize_nic(adapter);
3221         if (err)
3222                 return err;
3223
3224         qlcnic_check_options(adapter);
3225
3226         err = qlcnic_set_eswitch_port_config(adapter);
3227         if (err)
3228                 return err;
3229
3230         adapter->need_fw_reset = 0;
3231
3232         return err;
3233 }
3234
3235 int qlcnic_validate_max_rss(u8 max_hw, u8 val)
3236 {
3237         u32 max_allowed;
3238
3239         if (max_hw > QLC_MAX_SDS_RINGS) {
3240                 max_hw = QLC_MAX_SDS_RINGS;
3241                 pr_info("max rss reset to %d\n", QLC_MAX_SDS_RINGS);
3242         }
3243
3244         max_allowed = rounddown_pow_of_two(min_t(int, max_hw,
3245                                                  num_online_cpus()));
3246         if ((val > max_allowed) || (val < 2) || !is_power_of_2(val)) {
3247                 pr_info("rss_ring valid range [2 - %x] in powers of 2\n",
3248                         max_allowed);
3249                 return -EINVAL;
3250         }
3251         return 0;
3252 }
3253
3254 int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data, size_t len)
3255 {
3256         int err;
3257         struct net_device *netdev = adapter->netdev;
3258
3259         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3260                 return -EBUSY;
3261
3262         netif_device_detach(netdev);
3263         if (netif_running(netdev))
3264                 __qlcnic_down(adapter, netdev);
3265
3266         qlcnic_detach(adapter);
3267
3268         if (qlcnic_83xx_check(adapter))
3269                 qlcnic_83xx_free_mbx_intr(adapter);
3270
3271         qlcnic_teardown_intr(adapter);
3272         err = qlcnic_setup_intr(adapter, data);
3273         if (err) {
3274                 kfree(adapter->msix_entries);
3275                 netdev_err(netdev, "failed to setup interrupt\n");
3276                 return err;
3277         }
3278
3279         if (qlcnic_83xx_check(adapter)) {
3280                 /* register for NIC IDC AEN Events */
3281                 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3282                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3283                 if (err) {
3284                         dev_err(&adapter->pdev->dev,
3285                                 "failed to setup mbx interrupt\n");
3286                         goto done;
3287                 }
3288         }
3289
3290         if (netif_running(netdev)) {
3291                 err = qlcnic_attach(adapter);
3292                 if (err)
3293                         goto done;
3294                 err = __qlcnic_up(adapter, netdev);
3295                 if (err)
3296                         goto done;
3297                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3298         }
3299         err = len;
3300  done:
3301         netif_device_attach(netdev);
3302         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3303         return err;
3304 }
3305
3306 #ifdef CONFIG_INET
3307
3308 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
3309
3310 static void
3311 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
3312                         struct net_device *dev, unsigned long event)
3313 {
3314         struct in_device *indev;
3315
3316         indev = in_dev_get(dev);
3317         if (!indev)
3318                 return;
3319
3320         for_ifa(indev) {
3321                 switch (event) {
3322                 case NETDEV_UP:
3323                         qlcnic_config_ipaddr(adapter,
3324                                         ifa->ifa_address, QLCNIC_IP_UP);
3325                         break;
3326                 case NETDEV_DOWN:
3327                         qlcnic_config_ipaddr(adapter,
3328                                         ifa->ifa_address, QLCNIC_IP_DOWN);
3329                         break;
3330                 default:
3331                         break;
3332                 }
3333         } endfor_ifa(indev);
3334
3335         in_dev_put(indev);
3336 }
3337
3338 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
3339 {
3340         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3341         struct net_device *dev;
3342         u16 vid;
3343
3344         qlcnic_config_indev_addr(adapter, netdev, event);
3345
3346         rcu_read_lock();
3347         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
3348                 dev = __vlan_find_dev_deep(netdev, vid);
3349                 if (!dev)
3350                         continue;
3351                 qlcnic_config_indev_addr(adapter, dev, event);
3352         }
3353         rcu_read_unlock();
3354 }
3355
3356 static int qlcnic_netdev_event(struct notifier_block *this,
3357                                  unsigned long event, void *ptr)
3358 {
3359         struct qlcnic_adapter *adapter;
3360         struct net_device *dev = (struct net_device *)ptr;
3361
3362 recheck:
3363         if (dev == NULL)
3364                 goto done;
3365
3366         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3367                 dev = vlan_dev_real_dev(dev);
3368                 goto recheck;
3369         }
3370
3371         if (!is_qlcnic_netdev(dev))
3372                 goto done;
3373
3374         adapter = netdev_priv(dev);
3375
3376         if (!adapter)
3377                 goto done;
3378
3379         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3380                 goto done;
3381
3382         qlcnic_config_indev_addr(adapter, dev, event);
3383 done:
3384         return NOTIFY_DONE;
3385 }
3386
3387 static int
3388 qlcnic_inetaddr_event(struct notifier_block *this,
3389                 unsigned long event, void *ptr)
3390 {
3391         struct qlcnic_adapter *adapter;
3392         struct net_device *dev;
3393
3394         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3395
3396         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3397
3398 recheck:
3399         if (dev == NULL)
3400                 goto done;
3401
3402         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3403                 dev = vlan_dev_real_dev(dev);
3404                 goto recheck;
3405         }
3406
3407         if (!is_qlcnic_netdev(dev))
3408                 goto done;
3409
3410         adapter = netdev_priv(dev);
3411
3412         if (!adapter)
3413                 goto done;
3414
3415         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3416                 goto done;
3417
3418         switch (event) {
3419         case NETDEV_UP:
3420                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
3421
3422                 break;
3423         case NETDEV_DOWN:
3424                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
3425
3426                 break;
3427         default:
3428                 break;
3429         }
3430
3431 done:
3432         return NOTIFY_DONE;
3433 }
3434
3435 static struct notifier_block    qlcnic_netdev_cb = {
3436         .notifier_call = qlcnic_netdev_event,
3437 };
3438
3439 static struct notifier_block qlcnic_inetaddr_cb = {
3440         .notifier_call = qlcnic_inetaddr_event,
3441 };
3442 #else
3443 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
3444 { }
3445 #endif
3446 static const struct pci_error_handlers qlcnic_err_handler = {
3447         .error_detected = qlcnic_io_error_detected,
3448         .slot_reset = qlcnic_io_slot_reset,
3449         .resume = qlcnic_io_resume,
3450 };
3451
3452 static struct pci_driver qlcnic_driver = {
3453         .name = qlcnic_driver_name,
3454         .id_table = qlcnic_pci_tbl,
3455         .probe = qlcnic_probe,
3456         .remove = qlcnic_remove,
3457 #ifdef CONFIG_PM
3458         .suspend = qlcnic_suspend,
3459         .resume = qlcnic_resume,
3460 #endif
3461         .shutdown = qlcnic_shutdown,
3462         .err_handler = &qlcnic_err_handler,
3463 #ifdef CONFIG_QLCNIC_SRIOV
3464         .sriov_configure = qlcnic_pci_sriov_configure,
3465 #endif
3466
3467 };
3468
3469 static int __init qlcnic_init_module(void)
3470 {
3471         int ret;
3472
3473         printk(KERN_INFO "%s\n", qlcnic_driver_string);
3474
3475 #ifdef CONFIG_INET
3476         register_netdevice_notifier(&qlcnic_netdev_cb);
3477         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
3478 #endif
3479
3480         ret = pci_register_driver(&qlcnic_driver);
3481         if (ret) {
3482 #ifdef CONFIG_INET
3483                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3484                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3485 #endif
3486         }
3487
3488         return ret;
3489 }
3490
3491 module_init(qlcnic_init_module);
3492
3493 static void __exit qlcnic_exit_module(void)
3494 {
3495         pci_unregister_driver(&qlcnic_driver);
3496
3497 #ifdef CONFIG_INET
3498         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3499         unregister_netdevice_notifier(&qlcnic_netdev_cb);
3500 #endif
3501 }
3502
3503 module_exit(qlcnic_exit_module);