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