Pileus Git - ~andy/linux/blob - 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 ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
 230                 return -EOPNOTSUPP;
 231
 232         if (!is_valid_ether_addr(addr->sa_data))
 233                 return -EINVAL;
 234
 235         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 236                 netif_device_detach(netdev);
 237                 qlcnic_napi_disable(adapter);
 238         }
 239
 240         memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
 241         memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 242         qlcnic_set_multi(adapter->netdev);
 243
 244         if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 245                 netif_device_attach(netdev);
 246                 qlcnic_napi_enable(adapter);
 247         }
 248         return 0;
 249 }
 250
 251 static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
 252                         struct net_device *netdev, const unsigned char *addr)
 253 {
 254         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 255         int err = -EOPNOTSUPP;
 256
 257         if (!adapter->fdb_mac_learn)
 258                 return ndo_dflt_fdb_del(ndm, tb, netdev, addr);
 259
 260         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 261                 if (is_unicast_ether_addr(addr))
 262                         err = qlcnic_nic_del_mac(adapter, addr);
 263                 else if (is_multicast_ether_addr(addr))
 264                         err = dev_mc_del(netdev, addr);
 265                 else
 266                         err =  -EINVAL;
 267         }
 268         return err;
 269 }
 270
 271 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
 272                         struct net_device *netdev,
 273                         const unsigned char *addr, u16 flags)
 274 {
 275         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 276         int err = 0;
 277
 278         if (!adapter->fdb_mac_learn)
 279                 return ndo_dflt_fdb_add(ndm, tb, netdev, addr, flags);
 280
 281         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 282                 pr_info("%s: FDB e-switch is not enabled\n", __func__);
 283                 return -EOPNOTSUPP;
 284         }
 285
 286         if (ether_addr_equal(addr, adapter->mac_addr))
 287                 return err;
 288
 289         if (is_unicast_ether_addr(addr))
 290                 err = qlcnic_nic_add_mac(adapter, addr);
 291         else if (is_multicast_ether_addr(addr))
 292                 err = dev_mc_add_excl(netdev, addr);
 293         else
 294                 err = -EINVAL;
 295
 296         return err;
 297 }
 298
 299 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
 300                         struct net_device *netdev, int idx)
 301 {
 302         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 303
 304         if (!adapter->fdb_mac_learn)
 305                 return ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
 306
 307         if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
 308                 idx = ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
 309
 310         return idx;
 311 }
 312
 313 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
 314 {
 315         while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
 316                 usleep_range(10000, 11000);
 317
 318         cancel_delayed_work_sync(&adapter->fw_work);
 319 }
 320
 321 static const struct net_device_ops qlcnic_netdev_ops = {
 322         .ndo_open          = qlcnic_open,
 323         .ndo_stop          = qlcnic_close,
 324         .ndo_start_xmit    = qlcnic_xmit_frame,
 325         .ndo_get_stats     = qlcnic_get_stats,
 326         .ndo_validate_addr = eth_validate_addr,
 327         .ndo_set_rx_mode   = qlcnic_set_multi,
 328         .ndo_set_mac_address    = qlcnic_set_mac,
 329         .ndo_change_mtu    = qlcnic_change_mtu,
 330         .ndo_fix_features  = qlcnic_fix_features,
 331         .ndo_set_features  = qlcnic_set_features,
 332         .ndo_tx_timeout    = qlcnic_tx_timeout,
 333         .ndo_vlan_rx_add_vid    = qlcnic_vlan_rx_add,
 334         .ndo_vlan_rx_kill_vid   = qlcnic_vlan_rx_del,
 335         .ndo_fdb_add            = qlcnic_fdb_add,
 336         .ndo_fdb_del            = qlcnic_fdb_del,
 337         .ndo_fdb_dump           = qlcnic_fdb_dump,
 338 #ifdef CONFIG_NET_POLL_CONTROLLER
 339         .ndo_poll_controller = qlcnic_poll_controller,
 340 #endif
 341 };
 342
 343 static const struct net_device_ops qlcnic_netdev_failed_ops = {
 344         .ndo_open          = qlcnic_open,
 345 };
 346
 347 static struct qlcnic_nic_template qlcnic_ops = {
 348         .config_bridged_mode    = qlcnic_config_bridged_mode,
 349         .config_led             = qlcnic_82xx_config_led,
 350         .start_firmware         = qlcnic_82xx_start_firmware,
 351         .request_reset          = qlcnic_82xx_dev_request_reset,
 352         .cancel_idc_work        = qlcnic_82xx_cancel_idc_work,
 353         .napi_add               = qlcnic_82xx_napi_add,
 354         .napi_del               = qlcnic_82xx_napi_del,
 355         .config_ipaddr          = qlcnic_82xx_config_ipaddr,
 356         .clear_legacy_intr      = qlcnic_82xx_clear_legacy_intr,
 357 };
 358
 359 struct qlcnic_nic_template qlcnic_vf_ops = {
 360         .config_bridged_mode    = qlcnicvf_config_bridged_mode,
 361         .config_led             = qlcnicvf_config_led,
 362         .start_firmware         = qlcnicvf_start_firmware
 363 };
 364
 365 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
 366         .read_crb                       = qlcnic_82xx_read_crb,
 367         .write_crb                      = qlcnic_82xx_write_crb,
 368         .read_reg                       = qlcnic_82xx_hw_read_wx_2M,
 369         .write_reg                      = qlcnic_82xx_hw_write_wx_2M,
 370         .get_mac_address                = qlcnic_82xx_get_mac_address,
 371         .setup_intr                     = qlcnic_82xx_setup_intr,
 372         .alloc_mbx_args                 = qlcnic_82xx_alloc_mbx_args,
 373         .mbx_cmd                        = qlcnic_82xx_issue_cmd,
 374         .get_func_no                    = qlcnic_82xx_get_func_no,
 375         .api_lock                       = qlcnic_82xx_api_lock,
 376         .api_unlock                     = qlcnic_82xx_api_unlock,
 377         .add_sysfs                      = qlcnic_82xx_add_sysfs,
 378         .remove_sysfs                   = qlcnic_82xx_remove_sysfs,
 379         .process_lb_rcv_ring_diag       = qlcnic_82xx_process_rcv_ring_diag,
 380         .create_rx_ctx                  = qlcnic_82xx_fw_cmd_create_rx_ctx,
 381         .create_tx_ctx                  = qlcnic_82xx_fw_cmd_create_tx_ctx,
 382         .setup_link_event               = qlcnic_82xx_linkevent_request,
 383         .get_nic_info                   = qlcnic_82xx_get_nic_info,
 384         .get_pci_info                   = qlcnic_82xx_get_pci_info,
 385         .set_nic_info                   = qlcnic_82xx_set_nic_info,
 386         .change_macvlan                 = qlcnic_82xx_sre_macaddr_change,
 387         .napi_enable                    = qlcnic_82xx_napi_enable,
 388         .napi_disable                   = qlcnic_82xx_napi_disable,
 389         .config_intr_coal               = qlcnic_82xx_config_intr_coalesce,
 390         .config_rss                     = qlcnic_82xx_config_rss,
 391         .config_hw_lro                  = qlcnic_82xx_config_hw_lro,
 392         .config_loopback                = qlcnic_82xx_set_lb_mode,
 393         .clear_loopback                 = qlcnic_82xx_clear_lb_mode,
 394         .config_promisc_mode            = qlcnic_82xx_nic_set_promisc,
 395         .change_l2_filter               = qlcnic_82xx_change_filter,
 396         .get_board_info                 = qlcnic_82xx_get_board_info,
 397 };
 398
 399 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 400 {
 401         struct pci_dev *pdev = adapter->pdev;
 402         int err = -1, i;
 403         int max_tx_rings;
 404
 405         if (!adapter->msix_entries) {
 406                 adapter->msix_entries = kcalloc(num_msix,
 407                                                 sizeof(struct msix_entry),
 408                                                 GFP_KERNEL);
 409                 if (!adapter->msix_entries)
 410                         return -ENOMEM;
 411         }
 412
 413         adapter->max_sds_rings = 1;
 414         adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 415
 416         if (adapter->ahw->msix_supported) {
 417  enable_msix:
 418                 for (i = 0; i < num_msix; i++)
 419                         adapter->msix_entries[i].entry = i;
 420                 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
 421                 if (err == 0) {
 422                         adapter->flags |= QLCNIC_MSIX_ENABLED;
 423                         if (qlcnic_83xx_check(adapter)) {
 424                                 adapter->ahw->num_msix = num_msix;
 425                                 /* subtract mail box and tx ring vectors */
 426                                 max_tx_rings = adapter->max_drv_tx_rings;
 427                                 adapter->max_sds_rings = num_msix -
 428                                                          max_tx_rings - 1;
 429                         } else {
 430                                 adapter->max_sds_rings = num_msix;
 431                         }
 432                         dev_info(&pdev->dev, "using msi-x interrupts\n");
 433                         return err;
 434                 } else if (err > 0) {
 435                         dev_info(&pdev->dev,
 436                                  "Unable to allocate %d MSI-X interrupt vectors\n",
 437                                  num_msix);
 438                         if (qlcnic_83xx_check(adapter)) {
 439                                 if (err < QLC_83XX_MINIMUM_VECTOR)
 440                                         return err;
 441                                 err -= (adapter->max_drv_tx_rings + 1);
 442                                 num_msix = rounddown_pow_of_two(err);
 443                                 num_msix += (adapter->max_drv_tx_rings + 1);
 444                         } else {
 445                                 num_msix = rounddown_pow_of_two(err);
 446                         }
 447
 448                         if (num_msix) {
 449                                 dev_info(&pdev->dev,
 450                                          "Trying to allocate %d MSI-X interrupt vectors\n",
 451                                          num_msix);
 452                                 goto enable_msix;
 453                         }
 454                 } else {
 455                         dev_info(&pdev->dev,
 456                                  "Unable to allocate %d MSI-X interrupt vectors\n",
 457                                  num_msix);
 458                 }
 459         }
 460
 461         return err;
 462 }
 463
 464 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
 465 {
 466         int err = 0;
 467         u32 offset, mask_reg;
 468         const struct qlcnic_legacy_intr_set *legacy_intrp;
 469         struct qlcnic_hardware_context *ahw = adapter->ahw;
 470         struct pci_dev *pdev = adapter->pdev;
 471
 472         if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
 473                 adapter->flags |= QLCNIC_MSI_ENABLED;
 474                 offset = msi_tgt_status[adapter->ahw->pci_func];
 475                 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
 476                                                             offset);
 477                 dev_info(&pdev->dev, "using msi interrupts\n");
 478                 adapter->msix_entries[0].vector = pdev->irq;
 479                 return err;
 480         }
 481         if (qlcnic_use_msi || qlcnic_use_msi_x)
 482                 return -EOPNOTSUPP;
 483
 484         legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
 485         adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
 486         offset = legacy_intrp->tgt_status_reg;
 487         adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
 488         mask_reg = legacy_intrp->tgt_mask_reg;
 489         adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
 490         adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
 491         adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
 492         dev_info(&pdev->dev, "using legacy interrupts\n");
 493         adapter->msix_entries[0].vector = pdev->irq;
 494         return err;
 495 }
 496
 497 int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter, u8 num_intr)
 498 {
 499         int num_msix, err = 0;
 500
 501         if (!num_intr)
 502                 num_intr = QLCNIC_DEF_NUM_STS_DESC_RINGS;
 503
 504         if (adapter->ahw->msix_supported)
 505                 num_msix = rounddown_pow_of_two(min_t(int, num_online_cpus(),
 506                                                 num_intr));
 507         else
 508                 num_msix = 1;
 509
 510         err = qlcnic_enable_msix(adapter, num_msix);
 511         if (err == -ENOMEM || !err)
 512                 return err;
 513
 514         err = qlcnic_enable_msi_legacy(adapter);
 515         if (!err)
 516                 return err;
 517
 518         return -EIO;
 519 }
 520
 521 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
 522 {
 523         if (adapter->flags & QLCNIC_MSIX_ENABLED)
 524                 pci_disable_msix(adapter->pdev);
 525         if (adapter->flags & QLCNIC_MSI_ENABLED)
 526                 pci_disable_msi(adapter->pdev);
 527
 528         kfree(adapter->msix_entries);
 529         adapter->msix_entries = NULL;
 530
 531         if (adapter->ahw->intr_tbl) {
 532                 vfree(adapter->ahw->intr_tbl);
 533                 adapter->ahw->intr_tbl = NULL;
 534         }
 535 }
 536
 537 static void
 538 qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter)
 539 {
 540         if (adapter->ahw->pci_base0 != NULL)
 541                 iounmap(adapter->ahw->pci_base0);
 542 }
 543
 544 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
 545 {
 546         struct qlcnic_pci_info *pci_info;
 547         int ret;
 548
 549         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 550                 switch (adapter->ahw->port_type) {
 551                 case QLCNIC_GBE:
 552                         adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_GBE_PORTS;
 553                         break;
 554                 case QLCNIC_XGBE:
 555                         adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_XG_PORTS;
 556                         break;
 557                 }
 558                 return 0;
 559         }
 560
 561         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
 562                 return 0;
 563
 564         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 565         if (!pci_info)
 566                 return -ENOMEM;
 567
 568         ret = qlcnic_get_pci_info(adapter, pci_info);
 569         kfree(pci_info);
 570         return ret;
 571 }
 572
 573 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 574 {
 575         struct qlcnic_pci_info *pci_info;
 576         int i, ret = 0, j = 0;
 577         u16 act_pci_func;
 578         u8 pfn;
 579
 580         pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 581         if (!pci_info)
 582                 return -ENOMEM;
 583
 584         ret = qlcnic_get_pci_info(adapter, pci_info);
 585         if (ret)
 586                 goto err_pci_info;
 587
 588         act_pci_func = adapter->ahw->act_pci_func;
 589
 590         adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
 591                                  act_pci_func, GFP_KERNEL);
 592         if (!adapter->npars) {
 593                 ret = -ENOMEM;
 594                 goto err_pci_info;
 595         }
 596
 597         adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
 598                                 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
 599         if (!adapter->eswitch) {
 600                 ret = -ENOMEM;
 601                 goto err_npars;
 602         }
 603
 604         for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 605                 pfn = pci_info[i].id;
 606
 607                 if (pfn >= QLCNIC_MAX_PCI_FUNC) {
 608                         ret = QL_STATUS_INVALID_PARAM;
 609                         goto err_eswitch;
 610                 }
 611
 612                 if (!pci_info[i].active ||
 613                     (pci_info[i].type != QLCNIC_TYPE_NIC))
 614                         continue;
 615
 616                 adapter->npars[j].pci_func = pfn;
 617                 adapter->npars[j].active = (u8)pci_info[i].active;
 618                 adapter->npars[j].type = (u8)pci_info[i].type;
 619                 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
 620                 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
 621                 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
 622                 j++;
 623         }
 624
 625         for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++) {
 626                 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
 627                 if (qlcnic_83xx_check(adapter))
 628                         qlcnic_enable_eswitch(adapter, i, 1);
 629         }
 630
 631         kfree(pci_info);
 632         return 0;
 633
 634 err_eswitch:
 635         kfree(adapter->eswitch);
 636         adapter->eswitch = NULL;
 637 err_npars:
 638         kfree(adapter->npars);
 639         adapter->npars = NULL;
 640 err_pci_info:
 641         kfree(pci_info);
 642
 643         return ret;
 644 }
 645
 646 static int
 647 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
 648 {
 649         u8 id;
 650         int i, ret = 1;
 651         u32 data = QLCNIC_MGMT_FUNC;
 652         struct qlcnic_hardware_context *ahw = adapter->ahw;
 653
 654         ret = qlcnic_api_lock(adapter);
 655         if (ret)
 656                 goto err_lock;
 657
 658         if (qlcnic_config_npars) {
 659                 for (i = 0; i < ahw->act_pci_func; i++) {
 660                         id = adapter->npars[i].pci_func;
 661                         if (id == ahw->pci_func)
 662                                 continue;
 663                         data |= (qlcnic_config_npars &
 664                                         QLC_DEV_SET_DRV(0xf, id));
 665                 }
 666         } else {
 667                 data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 668                 data = (data & ~QLC_DEV_SET_DRV(0xf, ahw->pci_func)) |
 669                         (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
 670                                          ahw->pci_func));
 671         }
 672         QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
 673         qlcnic_api_unlock(adapter);
 674 err_lock:
 675         return ret;
 676 }
 677
 678 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
 679                             const struct pci_device_id *ent)
 680 {
 681         u32 op_mode, priv_level;
 682
 683         /* Determine FW API version */
 684         adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
 685                                                            QLCNIC_FW_API);
 686
 687         /* Find PCI function number */
 688         qlcnic_get_func_no(adapter);
 689
 690         /* Determine function privilege level */
 691         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
 692         if (op_mode == QLC_DEV_DRV_DEFAULT)
 693                 priv_level = QLCNIC_MGMT_FUNC;
 694         else
 695                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
 696
 697         if (priv_level == QLCNIC_NON_PRIV_FUNC) {
 698                 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
 699                 dev_info(&adapter->pdev->dev,
 700                         "HAL Version: %d Non Privileged function\n",
 701                          adapter->ahw->fw_hal_version);
 702                 adapter->nic_ops = &qlcnic_vf_ops;
 703         } else
 704                 adapter->nic_ops = &qlcnic_ops;
 705 }
 706
 707 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
 708 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
 709 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
 710 {
 711         switch (dev_id) {
 712         case PCI_DEVICE_ID_QLOGIC_QLE824X:
 713                 *bar = QLCNIC_82XX_BAR0_LENGTH;
 714                 break;
 715         case PCI_DEVICE_ID_QLOGIC_QLE834X:
 716         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
 717                 *bar = QLCNIC_83XX_BAR0_LENGTH;
 718                 break;
 719         default:
 720                 *bar = 0;
 721         }
 722 }
 723
 724 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
 725                                 struct qlcnic_hardware_context *ahw)
 726 {
 727         u32 offset;
 728         void __iomem *mem_ptr0 = NULL;
 729         unsigned long mem_len, pci_len0 = 0, bar0_len;
 730
 731         /* remap phys address */
 732         mem_len = pci_resource_len(pdev, 0);
 733
 734         qlcnic_get_bar_length(pdev->device, &bar0_len);
 735         if (mem_len >= bar0_len) {
 736
 737                 mem_ptr0 = pci_ioremap_bar(pdev, 0);
 738                 if (mem_ptr0 == NULL) {
 739                         dev_err(&pdev->dev, "failed to map PCI bar 0\n");
 740                         return -EIO;
 741                 }
 742                 pci_len0 = mem_len;
 743         } else {
 744                 return -EIO;
 745         }
 746
 747         dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
 748
 749         ahw->pci_base0 = mem_ptr0;
 750         ahw->pci_len0 = pci_len0;
 751         offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
 752         qlcnic_get_ioaddr(ahw, offset);
 753
 754         return 0;
 755 }
 756
 757 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
 758 {
 759         struct pci_dev *pdev = adapter->pdev;
 760         int i, found = 0;
 761
 762         for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
 763                 if (qlcnic_boards[i].vendor == pdev->vendor &&
 764                         qlcnic_boards[i].device == pdev->device &&
 765                         qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
 766                         qlcnic_boards[i].sub_device == pdev->subsystem_device) {
 767                                 sprintf(name, "%pM: %s" ,
 768                                         adapter->mac_addr,
 769                                         qlcnic_boards[i].short_name);
 770                                 found = 1;
 771                                 break;
 772                 }
 773
 774         }
 775
 776         if (!found)
 777                 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
 778 }
 779
 780 static void
 781 qlcnic_check_options(struct qlcnic_adapter *adapter)
 782 {
 783         int err;
 784         u32 fw_major, fw_minor, fw_build, prev_fw_version;
 785         struct pci_dev *pdev = adapter->pdev;
 786         struct qlcnic_hardware_context *ahw = adapter->ahw;
 787         struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
 788
 789         prev_fw_version = adapter->fw_version;
 790
 791         fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
 792         fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
 793         fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
 794
 795         adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
 796
 797         err = qlcnic_get_board_info(adapter);
 798         if (err) {
 799                 dev_err(&pdev->dev, "Error getting board config info.\n");
 800                 return;
 801         }
 802         if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
 803                 if (fw_dump->tmpl_hdr == NULL ||
 804                                 adapter->fw_version > prev_fw_version) {
 805                         if (fw_dump->tmpl_hdr)
 806                                 vfree(fw_dump->tmpl_hdr);
 807                         if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
 808                                 dev_info(&pdev->dev,
 809                                         "Supports FW dump capability\n");
 810                 }
 811         }
 812
 813         dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
 814                  QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
 815
 816         if (adapter->ahw->port_type == QLCNIC_XGBE) {
 817                 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
 818                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
 819                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
 820                 } else {
 821                         adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
 822                         adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
 823                 }
 824
 825                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 826                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
 827
 828         } else if (adapter->ahw->port_type == QLCNIC_GBE) {
 829                 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
 830                 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 831                 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
 832                 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
 833         }
 834
 835         adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
 836
 837         adapter->num_txd = MAX_CMD_DESCRIPTORS;
 838
 839         adapter->max_rds_rings = MAX_RDS_RINGS;
 840 }
 841
 842 static int
 843 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
 844 {
 845         int err;
 846         struct qlcnic_info nic_info;
 847
 848         memset(&nic_info, 0, sizeof(struct qlcnic_info));
 849         err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
 850         if (err)
 851                 return err;
 852
 853         adapter->ahw->physical_port = (u8)nic_info.phys_port;
 854         adapter->ahw->switch_mode = nic_info.switch_mode;
 855         adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
 856         adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
 857         adapter->ahw->capabilities = nic_info.capabilities;
 858
 859         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
 860                 u32 temp;
 861                 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
 862                 adapter->ahw->capabilities2 = temp;
 863         }
 864         adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
 865         adapter->ahw->max_mtu = nic_info.max_mtu;
 866
 867         /* Disable NPAR for 83XX */
 868         if (qlcnic_83xx_check(adapter))
 869                 return err;
 870
 871         if (adapter->ahw->capabilities & BIT_6)
 872                 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
 873         else
 874                 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
 875
 876         return err;
 877 }
 878
 879 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
 880                             struct qlcnic_esw_func_cfg *esw_cfg)
 881 {
 882         if (esw_cfg->discard_tagged)
 883                 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
 884         else
 885                 adapter->flags |= QLCNIC_TAGGING_ENABLED;
 886
 887         if (esw_cfg->vlan_id)
 888                 adapter->pvid = esw_cfg->vlan_id;
 889         else
 890                 adapter->pvid = 0;
 891 }
 892
 893 static int
 894 qlcnic_vlan_rx_add(struct net_device *netdev, u16 vid)
 895 {
 896         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 897         set_bit(vid, adapter->vlans);
 898         return 0;
 899 }
 900
 901 static int
 902 qlcnic_vlan_rx_del(struct net_device *netdev, u16 vid)
 903 {
 904         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 905
 906         qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
 907         clear_bit(vid, adapter->vlans);
 908         return 0;
 909 }
 910
 911 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
 912                                       struct qlcnic_esw_func_cfg *esw_cfg)
 913 {
 914         adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
 915                                 QLCNIC_PROMISC_DISABLED);
 916
 917         if (esw_cfg->mac_anti_spoof)
 918                 adapter->flags |= QLCNIC_MACSPOOF;
 919
 920         if (!esw_cfg->mac_override)
 921                 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
 922
 923         if (!esw_cfg->promisc_mode)
 924                 adapter->flags |= QLCNIC_PROMISC_DISABLED;
 925
 926         qlcnic_set_netdev_features(adapter, esw_cfg);
 927 }
 928
 929 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
 930 {
 931         struct qlcnic_esw_func_cfg esw_cfg;
 932
 933         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
 934                 return 0;
 935
 936         esw_cfg.pci_func = adapter->ahw->pci_func;
 937         if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
 938                         return -EIO;
 939         qlcnic_set_vlan_config(adapter, &esw_cfg);
 940         qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
 941
 942         return 0;
 943 }
 944
 945 static void
 946 qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
 947                 struct qlcnic_esw_func_cfg *esw_cfg)
 948 {
 949         struct net_device *netdev = adapter->netdev;
 950         unsigned long features, vlan_features;
 951
 952         if (qlcnic_83xx_check(adapter))
 953                 return;
 954
 955         features = (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
 956                     NETIF_F_IPV6_CSUM | NETIF_F_GRO);
 957         vlan_features = (NETIF_F_SG | NETIF_F_IP_CSUM |
 958                         NETIF_F_IPV6_CSUM);
 959
 960         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
 961                 features |= (NETIF_F_TSO | NETIF_F_TSO6);
 962                 vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
 963         }
 964
 965         if (netdev->features & NETIF_F_LRO)
 966                 features |= NETIF_F_LRO;
 967
 968         if (esw_cfg->offload_flags & BIT_0) {
 969                 netdev->features |= features;
 970                 adapter->rx_csum = 1;
 971                 if (!(esw_cfg->offload_flags & BIT_1)) {
 972                         netdev->features &= ~NETIF_F_TSO;
 973                         features &= ~NETIF_F_TSO;
 974                 }
 975                 if (!(esw_cfg->offload_flags & BIT_2)) {
 976                         netdev->features &= ~NETIF_F_TSO6;
 977                         features &= ~NETIF_F_TSO6;
 978                 }
 979         } else {
 980                 netdev->features &= ~features;
 981                 features &= ~features;
 982                 adapter->rx_csum = 0;
 983         }
 984
 985         netdev->vlan_features = (features & vlan_features);
 986 }
 987
 988 static int
 989 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
 990 {
 991         u32 op_mode, priv_level;
 992         int err = 0;
 993
 994         err = qlcnic_initialize_nic(adapter);
 995         if (err)
 996                 return err;
 997
 998         if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
 999                 return 0;
1000
1001         op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1002         priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1003
1004         if (op_mode == QLC_DEV_DRV_DEFAULT)
1005                 priv_level = QLCNIC_MGMT_FUNC;
1006         else
1007                 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1008
1009         if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1010                 if (priv_level == QLCNIC_MGMT_FUNC) {
1011                         adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1012                         err = qlcnic_init_pci_info(adapter);
1013                         if (err)
1014                                 return err;
1015                         /* Set privilege level for other functions */
1016                         qlcnic_set_function_modes(adapter);
1017                         dev_info(&adapter->pdev->dev,
1018                                 "HAL Version: %d, Management function\n",
1019                                  adapter->ahw->fw_hal_version);
1020                 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1021                         adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1022                         dev_info(&adapter->pdev->dev,
1023                                 "HAL Version: %d, Privileged function\n",
1024                                  adapter->ahw->fw_hal_version);
1025                 }
1026         }
1027
1028         adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1029
1030         return err;
1031 }
1032
1033 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1034 {
1035         struct qlcnic_esw_func_cfg esw_cfg;
1036         struct qlcnic_npar_info *npar;
1037         u8 i;
1038
1039         if (adapter->need_fw_reset)
1040                 return 0;
1041
1042         for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1043                 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1044                 esw_cfg.pci_func = adapter->npars[i].pci_func;
1045                 esw_cfg.mac_override = BIT_0;
1046                 esw_cfg.promisc_mode = BIT_0;
1047                 if (qlcnic_82xx_check(adapter)) {
1048                         esw_cfg.offload_flags = BIT_0;
1049                         if (QLCNIC_IS_TSO_CAPABLE(adapter))
1050                                 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1051                 }
1052                 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1053                         return -EIO;
1054                 npar = &adapter->npars[i];
1055                 npar->pvid = esw_cfg.vlan_id;
1056                 npar->mac_override = esw_cfg.mac_override;
1057                 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1058                 npar->discard_tagged = esw_cfg.discard_tagged;
1059                 npar->promisc_mode = esw_cfg.promisc_mode;
1060                 npar->offload_flags = esw_cfg.offload_flags;
1061         }
1062
1063         return 0;
1064 }
1065
1066
1067 static int
1068 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1069                         struct qlcnic_npar_info *npar, int pci_func)
1070 {
1071         struct qlcnic_esw_func_cfg esw_cfg;
1072         esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1073         esw_cfg.pci_func = pci_func;
1074         esw_cfg.vlan_id = npar->pvid;
1075         esw_cfg.mac_override = npar->mac_override;
1076         esw_cfg.discard_tagged = npar->discard_tagged;
1077         esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1078         esw_cfg.offload_flags = npar->offload_flags;
1079         esw_cfg.promisc_mode = npar->promisc_mode;
1080         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1081                 return -EIO;
1082
1083         esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1084         if (qlcnic_config_switch_port(adapter, &esw_cfg))
1085                 return -EIO;
1086
1087         return 0;
1088 }
1089
1090 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1091 {
1092         int i, err;
1093         struct qlcnic_npar_info *npar;
1094         struct qlcnic_info nic_info;
1095         u8 pci_func;
1096
1097         if (qlcnic_82xx_check(adapter))
1098                 if (!adapter->need_fw_reset)
1099                         return 0;
1100
1101         /* Set the NPAR config data after FW reset */
1102         for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1103                 npar = &adapter->npars[i];
1104                 pci_func = npar->pci_func;
1105                 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1106                 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1107                 if (err)
1108                         return err;
1109                 nic_info.min_tx_bw = npar->min_bw;
1110                 nic_info.max_tx_bw = npar->max_bw;
1111                 err = qlcnic_set_nic_info(adapter, &nic_info);
1112                 if (err)
1113                         return err;
1114
1115                 if (npar->enable_pm) {
1116                         err = qlcnic_config_port_mirroring(adapter,
1117                                                            npar->dest_npar, 1,
1118                                                            pci_func);
1119                         if (err)
1120                                 return err;
1121                 }
1122                 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1123                 if (err)
1124                         return err;
1125         }
1126         return 0;
1127 }
1128
1129 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1130 {
1131         u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1132         u32 npar_state;
1133
1134         if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1135                 return 0;
1136
1137         npar_state = QLC_SHARED_REG_RD32(adapter,
1138                                          QLCNIC_CRB_DEV_NPAR_STATE);
1139         while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1140                 msleep(1000);
1141                 npar_state = QLC_SHARED_REG_RD32(adapter,
1142                                                  QLCNIC_CRB_DEV_NPAR_STATE);
1143         }
1144         if (!npar_opt_timeo) {
1145                 dev_err(&adapter->pdev->dev,
1146                         "Waiting for NPAR state to operational timeout\n");
1147                 return -EIO;
1148         }
1149         return 0;
1150 }
1151
1152 static int
1153 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1154 {
1155         int err;
1156
1157         if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1158             adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1159                 return 0;
1160
1161         err = qlcnic_set_default_offload_settings(adapter);
1162         if (err)
1163                 return err;
1164
1165         err = qlcnic_reset_npar_config(adapter);
1166         if (err)
1167                 return err;
1168
1169         qlcnic_dev_set_npar_ready(adapter);
1170
1171         return err;
1172 }
1173
1174 int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1175 {
1176         int err;
1177
1178         err = qlcnic_can_start_firmware(adapter);
1179         if (err < 0)
1180                 return err;
1181         else if (!err)
1182                 goto check_fw_status;
1183
1184         if (qlcnic_load_fw_file)
1185                 qlcnic_request_firmware(adapter);
1186         else {
1187                 err = qlcnic_check_flash_fw_ver(adapter);
1188                 if (err)
1189                         goto err_out;
1190
1191                 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1192         }
1193
1194         err = qlcnic_need_fw_reset(adapter);
1195         if (err == 0)
1196                 goto check_fw_status;
1197
1198         err = qlcnic_pinit_from_rom(adapter);
1199         if (err)
1200                 goto err_out;
1201
1202         err = qlcnic_load_firmware(adapter);
1203         if (err)
1204                 goto err_out;
1205
1206         qlcnic_release_firmware(adapter);
1207         QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1208
1209 check_fw_status:
1210         err = qlcnic_check_fw_status(adapter);
1211         if (err)
1212                 goto err_out;
1213
1214         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1215         qlcnic_idc_debug_info(adapter, 1);
1216         err = qlcnic_check_eswitch_mode(adapter);
1217         if (err) {
1218                 dev_err(&adapter->pdev->dev,
1219                         "Memory allocation failed for eswitch\n");
1220                 goto err_out;
1221         }
1222         err = qlcnic_set_mgmt_operations(adapter);
1223         if (err)
1224                 goto err_out;
1225
1226         qlcnic_check_options(adapter);
1227         adapter->need_fw_reset = 0;
1228
1229         qlcnic_release_firmware(adapter);
1230         return 0;
1231
1232 err_out:
1233         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1234         dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1235
1236         qlcnic_release_firmware(adapter);
1237         return err;
1238 }
1239
1240 static int
1241 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1242 {
1243         irq_handler_t handler;
1244         struct qlcnic_host_sds_ring *sds_ring;
1245         struct qlcnic_host_tx_ring *tx_ring;
1246         int err, ring;
1247
1248         unsigned long flags = 0;
1249         struct net_device *netdev = adapter->netdev;
1250         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1251
1252         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1253                 if (qlcnic_82xx_check(adapter))
1254                         handler = qlcnic_tmp_intr;
1255                 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1256                         flags |= IRQF_SHARED;
1257
1258         } else {
1259                 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1260                         handler = qlcnic_msix_intr;
1261                 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1262                         handler = qlcnic_msi_intr;
1263                 else {
1264                         flags |= IRQF_SHARED;
1265                         if (qlcnic_82xx_check(adapter))
1266                                 handler = qlcnic_intr;
1267                         else
1268                                 handler = qlcnic_83xx_intr;
1269                 }
1270         }
1271         adapter->irq = netdev->irq;
1272
1273         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1274                 if (qlcnic_82xx_check(adapter) ||
1275                     (qlcnic_83xx_check(adapter) &&
1276                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1277                         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1278                                 sds_ring = &recv_ctx->sds_rings[ring];
1279                                 snprintf(sds_ring->name, sizeof(int) + IFNAMSIZ,
1280                                          "%s[%d]", netdev->name, ring);
1281                                 err = request_irq(sds_ring->irq, handler, flags,
1282                                                   sds_ring->name, sds_ring);
1283                                 if (err)
1284                                         return err;
1285                         }
1286                 }
1287                 if (qlcnic_83xx_check(adapter) &&
1288                     (adapter->flags & QLCNIC_MSIX_ENABLED)) {
1289                         handler = qlcnic_msix_tx_intr;
1290                         for (ring = 0; ring < adapter->max_drv_tx_rings;
1291                              ring++) {
1292                                 tx_ring = &adapter->tx_ring[ring];
1293                                 snprintf(tx_ring->name, sizeof(int) + IFNAMSIZ,
1294                                          "%s[%d]", netdev->name,
1295                                          adapter->max_sds_rings + ring);
1296                                 err = request_irq(tx_ring->irq, handler, flags,
1297                                                   tx_ring->name, tx_ring);
1298                                 if (err)
1299                                         return err;
1300                         }
1301                 }
1302         }
1303         return 0;
1304 }
1305
1306 static void
1307 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1308 {
1309         int ring;
1310         struct qlcnic_host_sds_ring *sds_ring;
1311         struct qlcnic_host_tx_ring *tx_ring;
1312
1313         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1314
1315         if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1316                 if (qlcnic_82xx_check(adapter) ||
1317                     (qlcnic_83xx_check(adapter) &&
1318                      (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1319                         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1320                                 sds_ring = &recv_ctx->sds_rings[ring];
1321                                 free_irq(sds_ring->irq, sds_ring);
1322                         }
1323                 }
1324                 if (qlcnic_83xx_check(adapter)) {
1325                         for (ring = 0; ring < adapter->max_drv_tx_rings;
1326                              ring++) {
1327                                 tx_ring = &adapter->tx_ring[ring];
1328                                 if (tx_ring->irq)
1329                                         free_irq(tx_ring->irq, tx_ring);
1330                         }
1331                 }
1332         }
1333 }
1334
1335 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1336 {
1337         u32 capab = 0;
1338
1339         if (qlcnic_82xx_check(adapter)) {
1340                 if (adapter->ahw->capabilities2 &
1341                     QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1342                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1343         } else {
1344                 capab = adapter->ahw->capabilities;
1345                 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1346                         adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1347         }
1348 }
1349
1350 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1351 {
1352         int ring;
1353         struct qlcnic_host_rds_ring *rds_ring;
1354
1355         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1356                 return -EIO;
1357
1358         if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1359                 return 0;
1360         if (qlcnic_set_eswitch_port_config(adapter))
1361                 return -EIO;
1362         qlcnic_get_lro_mss_capability(adapter);
1363
1364         if (qlcnic_fw_create_ctx(adapter))
1365                 return -EIO;
1366
1367         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1368                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1369                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1370         }
1371
1372         qlcnic_set_multi(netdev);
1373         qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1374
1375         adapter->ahw->linkup = 0;
1376
1377         if (adapter->max_sds_rings > 1)
1378                 qlcnic_config_rss(adapter, 1);
1379
1380         qlcnic_config_intr_coalesce(adapter);
1381
1382         if (netdev->features & NETIF_F_LRO)
1383                 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1384
1385         qlcnic_napi_enable(adapter);
1386
1387         qlcnic_linkevent_request(adapter, 1);
1388
1389         adapter->ahw->reset_context = 0;
1390         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1391         return 0;
1392 }
1393
1394 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1395 {
1396         int err = 0;
1397
1398         rtnl_lock();
1399         if (netif_running(netdev))
1400                 err = __qlcnic_up(adapter, netdev);
1401         rtnl_unlock();
1402
1403         return err;
1404 }
1405
1406 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1407 {
1408         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1409                 return;
1410
1411         if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1412                 return;
1413
1414         smp_mb();
1415         spin_lock(&adapter->tx_clean_lock);
1416         netif_carrier_off(netdev);
1417         adapter->ahw->linkup = 0;
1418         netif_tx_disable(netdev);
1419
1420         qlcnic_free_mac_list(adapter);
1421
1422         if (adapter->fhash.fnum)
1423                 qlcnic_delete_lb_filters(adapter);
1424
1425         qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1426
1427         qlcnic_napi_disable(adapter);
1428
1429         qlcnic_fw_destroy_ctx(adapter);
1430         adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1431
1432         qlcnic_reset_rx_buffers_list(adapter);
1433         qlcnic_release_tx_buffers(adapter);
1434         spin_unlock(&adapter->tx_clean_lock);
1435 }
1436
1437 /* Usage: During suspend and firmware recovery module */
1438
1439 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1440 {
1441         rtnl_lock();
1442         if (netif_running(netdev))
1443                 __qlcnic_down(adapter, netdev);
1444         rtnl_unlock();
1445
1446 }
1447
1448 int
1449 qlcnic_attach(struct qlcnic_adapter *adapter)
1450 {
1451         struct net_device *netdev = adapter->netdev;
1452         struct pci_dev *pdev = adapter->pdev;
1453         int err;
1454
1455         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1456                 return 0;
1457
1458         err = qlcnic_napi_add(adapter, netdev);
1459         if (err)
1460                 return err;
1461
1462         err = qlcnic_alloc_sw_resources(adapter);
1463         if (err) {
1464                 dev_err(&pdev->dev, "Error in setting sw resources\n");
1465                 goto err_out_napi_del;
1466         }
1467
1468         err = qlcnic_alloc_hw_resources(adapter);
1469         if (err) {
1470                 dev_err(&pdev->dev, "Error in setting hw resources\n");
1471                 goto err_out_free_sw;
1472         }
1473
1474         err = qlcnic_request_irq(adapter);
1475         if (err) {
1476                 dev_err(&pdev->dev, "failed to setup interrupt\n");
1477                 goto err_out_free_hw;
1478         }
1479
1480         qlcnic_create_sysfs_entries(adapter);
1481
1482         adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1483         return 0;
1484
1485 err_out_free_hw:
1486         qlcnic_free_hw_resources(adapter);
1487 err_out_free_sw:
1488         qlcnic_free_sw_resources(adapter);
1489 err_out_napi_del:
1490         qlcnic_napi_del(adapter);
1491         return err;
1492 }
1493
1494 void qlcnic_detach(struct qlcnic_adapter *adapter)
1495 {
1496         if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1497                 return;
1498
1499         qlcnic_remove_sysfs_entries(adapter);
1500
1501         qlcnic_free_hw_resources(adapter);
1502         qlcnic_release_rx_buffers(adapter);
1503         qlcnic_free_irq(adapter);
1504         qlcnic_napi_del(adapter);
1505         qlcnic_free_sw_resources(adapter);
1506
1507         adapter->is_up = 0;
1508 }
1509
1510 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1511 {
1512         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1513         struct qlcnic_host_sds_ring *sds_ring;
1514         int ring;
1515
1516         clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1517         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1518                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1519                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1520                         qlcnic_disable_int(sds_ring);
1521                 }
1522         }
1523
1524         qlcnic_fw_destroy_ctx(adapter);
1525
1526         qlcnic_detach(adapter);
1527
1528         adapter->ahw->diag_test = 0;
1529         adapter->max_sds_rings = max_sds_rings;
1530
1531         if (qlcnic_attach(adapter))
1532                 goto out;
1533
1534         if (netif_running(netdev))
1535                 __qlcnic_up(adapter, netdev);
1536 out:
1537         netif_device_attach(netdev);
1538 }
1539
1540 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
1541 {
1542         int err = 0;
1543         adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
1544                                 GFP_KERNEL);
1545         if (!adapter->recv_ctx) {
1546                 err = -ENOMEM;
1547                 goto err_out;
1548         }
1549         /* Initialize interrupt coalesce parameters */
1550         adapter->ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1551         adapter->ahw->coal.rx_time_us = QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
1552         adapter->ahw->coal.rx_packets = QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
1553         /* clear stats */
1554         memset(&adapter->stats, 0, sizeof(adapter->stats));
1555 err_out:
1556         return err;
1557 }
1558
1559 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
1560 {
1561         kfree(adapter->recv_ctx);
1562         adapter->recv_ctx = NULL;
1563
1564         if (adapter->ahw->fw_dump.tmpl_hdr) {
1565                 vfree(adapter->ahw->fw_dump.tmpl_hdr);
1566                 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1567         }
1568
1569         kfree(adapter->ahw->reset.buff);
1570         adapter->ahw->fw_dump.tmpl_hdr = NULL;
1571 }
1572
1573 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1574 {
1575         struct qlcnic_adapter *adapter = netdev_priv(netdev);
1576         struct qlcnic_host_sds_ring *sds_ring;
1577         struct qlcnic_host_rds_ring *rds_ring;
1578         int ring;
1579         int ret;
1580
1581         netif_device_detach(netdev);
1582
1583         if (netif_running(netdev))
1584                 __qlcnic_down(adapter, netdev);
1585
1586         qlcnic_detach(adapter);
1587
1588         adapter->max_sds_rings = 1;
1589         adapter->ahw->diag_test = test;
1590         adapter->ahw->linkup = 0;
1591
1592         ret = qlcnic_attach(adapter);
1593         if (ret) {
1594                 netif_device_attach(netdev);
1595                 return ret;
1596         }
1597
1598         ret = qlcnic_fw_create_ctx(adapter);
1599         if (ret) {
1600                 qlcnic_detach(adapter);
1601                 netif_device_attach(netdev);
1602                 return ret;
1603         }
1604
1605         for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1606                 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1607                 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1608         }
1609
1610         if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1611                 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1612                         sds_ring = &adapter->recv_ctx->sds_rings[ring];
1613                         qlcnic_enable_int(sds_ring);
1614                 }
1615         }
1616
1617         if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
1618                 adapter->ahw->loopback_state = 0;
1619                 qlcnic_linkevent_request(adapter, 1);
1620         }
1621
1622         set_bit(__QLCNIC_DEV_UP, &adapter->state);
1623
1624         return 0;
1625 }
1626
1627 /* Reset context in hardware only */
1628 static int
1629 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1630 {
1631         struct net_device *netdev = adapter->netdev;
1632
1633         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1634                 return -EBUSY;
1635
1636         netif_device_detach(netdev);
1637
1638         qlcnic_down(adapter, netdev);
1639
1640         qlcnic_up(adapter, netdev);
1641
1642         netif_device_attach(netdev);
1643
1644         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1645         dev_err(&adapter->pdev->dev, "%s:\n", __func__);
1646         return 0;
1647 }
1648
1649 int
1650 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1651 {
1652         int err = 0;
1653         struct net_device *netdev = adapter->netdev;
1654
1655         if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1656                 return -EBUSY;
1657
1658         if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1659
1660                 netif_device_detach(netdev);
1661
1662                 if (netif_running(netdev))
1663                         __qlcnic_down(adapter, netdev);
1664
1665                 qlcnic_detach(adapter);
1666
1667                 if (netif_running(netdev)) {
1668                         err = qlcnic_attach(adapter);
1669                         if (!err) {
1670                                 __qlcnic_up(adapter, netdev);
1671                                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1672                         }
1673                 }
1674
1675                 netif_device_attach(netdev);
1676         }
1677
1678         clear_bit(__QLCNIC_RESETTING, &adapter->state);
1679         return err;
1680 }
1681
1682 int
1683 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
1684                     int pci_using_dac)
1685 {
1686         int err;
1687         struct pci_dev *pdev = adapter->pdev;
1688
1689         adapter->rx_csum = 1;
1690         adapter->ahw->mc_enabled = 0;
1691         adapter->ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
1692
1693         netdev->netdev_ops         = &qlcnic_netdev_ops;
1694         netdev->watchdog_timeo     = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
1695
1696         qlcnic_change_mtu(netdev, netdev->mtu);
1697
1698         SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1699
1700         netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
1701                              NETIF_F_IPV6_CSUM | NETIF_F_GRO |
1702                              NETIF_F_HW_VLAN_RX);
1703         netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1704                                   NETIF_F_IPV6_CSUM);
1705
1706         if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
1707                 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
1708                 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
1709         }
1710
1711         if (pci_using_dac) {
1712                 netdev->features |= NETIF_F_HIGHDMA;
1713                 netdev->vlan_features |= NETIF_F_HIGHDMA;
1714         }
1715
1716         if (qlcnic_vlan_tx_check(adapter))
1717                 netdev->features |= (NETIF_F_HW_VLAN_TX);
1718
1719         if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1720                 netdev->features |= NETIF_F_LRO;
1721
1722         netdev->hw_features = netdev->features;
1723         netdev->irq = adapter->msix_entries[0].vector;
1724
1725         err = register_netdev(netdev);
1726         if (err) {
1727                 dev_err(&pdev->dev, "failed to register net device\n");
1728                 return err;
1729         }
1730
1731         return 0;
1732 }
1733
1734 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
1735 {
1736         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1737                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1738                 *pci_using_dac = 1;
1739         else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1740                         !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1741                 *pci_using_dac = 0;
1742         else {
1743                 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1744                 return -EIO;
1745         }
1746
1747         return 0;
1748 }
1749
1750 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
1751 {
1752         int ring;
1753         struct qlcnic_host_tx_ring *tx_ring;
1754
1755         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1756                 tx_ring = &adapter->tx_ring[ring];
1757                 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
1758                         vfree(tx_ring->cmd_buf_arr);
1759                         tx_ring->cmd_buf_arr = NULL;
1760                 }
1761         }
1762         if (adapter->tx_ring != NULL)
1763                 kfree(adapter->tx_ring);
1764 }
1765
1766 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
1767                           struct net_device *netdev)
1768 {
1769         int ring, vector, index;
1770         struct qlcnic_host_tx_ring *tx_ring;
1771         struct qlcnic_cmd_buffer *cmd_buf_arr;
1772
1773         tx_ring = kcalloc(adapter->max_drv_tx_rings,
1774                           sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
1775         if (tx_ring == NULL)
1776                 return -ENOMEM;
1777
1778         adapter->tx_ring = tx_ring;
1779
1780         for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1781                 tx_ring = &adapter->tx_ring[ring];
1782                 tx_ring->num_desc = adapter->num_txd;
1783                 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
1784                 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
1785                 if (cmd_buf_arr == NULL) {
1786                         qlcnic_free_tx_rings(adapter);
1787                         return -ENOMEM;
1788                 }
1789                 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
1790                 tx_ring->cmd_buf_arr = cmd_buf_arr;
1791         }
1792
1793         if (qlcnic_83xx_check(adapter)) {
1794                 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1795                         tx_ring = &adapter->tx_ring[ring];
1796                         tx_ring->adapter = adapter;
1797                         if (adapter->flags & QLCNIC_MSIX_ENABLED) {
1798                                 index = adapter->max_sds_rings + ring;
1799                                 vector = adapter->msix_entries[index].vector;
1800                                 tx_ring->irq = vector;
1801                         }
1802                 }
1803         }
1804         return 0;
1805 }
1806
1807 static int
1808 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1809 {
1810         struct net_device *netdev = NULL;
1811         struct qlcnic_adapter *adapter = NULL;
1812         struct qlcnic_hardware_context *ahw;
1813         int err, pci_using_dac = -1;
1814         u32 capab2;
1815         char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
1816
1817         if (pdev->is_virtfn)
1818                 return -ENODEV;
1819
1820         err = pci_enable_device(pdev);
1821         if (err)
1822                 return err;
1823
1824         if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1825                 err = -ENODEV;
1826                 goto err_out_disable_pdev;
1827         }
1828
1829         err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
1830         if (err)
1831                 goto err_out_disable_pdev;
1832
1833         err = pci_request_regions(pdev, qlcnic_driver_name);
1834         if (err)
1835                 goto err_out_disable_pdev;
1836
1837         pci_set_master(pdev);
1838         pci_enable_pcie_error_reporting(pdev);
1839
1840         ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
1841         if (!ahw)
1842                 goto err_out_free_res;
1843
1844         switch (ent->device) {
1845         case PCI_DEVICE_ID_QLOGIC_QLE824X:
1846                 ahw->hw_ops = &qlcnic_hw_ops;
1847                 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
1848                 break;
1849         case PCI_DEVICE_ID_QLOGIC_QLE834X:
1850                 qlcnic_83xx_register_map(ahw);
1851                 break;
1852         case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
1853                 qlcnic_sriov_vf_register_map(ahw);
1854                 break;
1855         default:
1856                 goto err_out_free_hw_res;
1857         }
1858
1859         err = qlcnic_setup_pci_map(pdev, ahw);
1860         if (err)
1861                 goto err_out_free_hw_res;
1862
1863         netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1864         if (!netdev) {
1865                 err = -ENOMEM;
1866                 goto err_out_iounmap;
1867         }
1868
1869         SET_NETDEV_DEV(netdev, &pdev->dev);
1870
1871         adapter = netdev_priv(netdev);
1872         adapter->netdev  = netdev;
1873         adapter->pdev    = pdev;
1874         adapter->ahw = ahw;
1875
1876         adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
1877         if (adapter->qlcnic_wq == NULL) {
1878                 dev_err(&pdev->dev, "Failed to create workqueue\n");
1879                 goto err_out_free_netdev;
1880         }
1881
1882         err = qlcnic_alloc_adapter_resources(adapter);
1883         if (err)
1884                 goto err_out_free_netdev;
1885
1886         adapter->dev_rst_time = jiffies;
1887         adapter->ahw->revision_id = pdev->revision;
1888         if (qlcnic_mac_learn == FDB_MAC_LEARN)
1889                 adapter->fdb_mac_learn = true;
1890         else if (qlcnic_mac_learn == DRV_MAC_LEARN)
1891                 adapter->drv_mac_learn = true;
1892         adapter->max_drv_tx_rings = 1;
1893
1894         rwlock_init(&adapter->ahw->crb_lock);
1895         mutex_init(&adapter->ahw->mem_lock);
1896
1897         spin_lock_init(&adapter->tx_clean_lock);
1898         INIT_LIST_HEAD(&adapter->mac_list);
1899
1900         if (qlcnic_82xx_check(adapter)) {
1901                 qlcnic_check_vf(adapter, ent);
1902                 adapter->portnum = adapter->ahw->pci_func;
1903                 err = qlcnic_start_firmware(adapter);
1904                 if (err) {
1905                         dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
1906                         goto err_out_free_hw;
1907                 }
1908
1909                 err = qlcnic_setup_idc_param(adapter);
1910                 if (err)
1911                         goto err_out_free_hw;
1912
1913                 adapter->flags |= QLCNIC_NEED_FLR;
1914         } else if (qlcnic_83xx_check(adapter)) {
1915                 qlcnic_83xx_check_vf(adapter, ent);
1916                 adapter->portnum = adapter->ahw->pci_func;
1917                 err = qlcnic_83xx_init(adapter, pci_using_dac);
1918                 if (err) {
1919                         dev_err(&pdev->dev, "%s: failed\n", __func__);
1920                         goto err_out_free_hw;
1921                 }
1922                 if (qlcnic_sriov_vf_check(adapter))
1923                         return 0;
1924         } else {
1925                 dev_err(&pdev->dev,
1926                         "%s: failed. Please Reboot\n", __func__);
1927                 goto err_out_free_hw;
1928         }
1929
1930         if (qlcnic_read_mac_addr(adapter))
1931                 dev_warn(&pdev->dev, "failed to read mac addr\n");
1932
1933         if (adapter->portnum == 0) {
1934                 qlcnic_get_board_name(adapter, board_name);
1935
1936                 pr_info("%s: %s Board Chip rev 0x%x\n",
1937                         module_name(THIS_MODULE),
1938                         board_name, adapter->ahw->revision_id);
1939         }
1940
1941         if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
1942             !!qlcnic_use_msi)
1943                 dev_warn(&pdev->dev,
1944                          "83xx adapter do not support MSI interrupts\n");
1945
1946         err = qlcnic_setup_intr(adapter, 0);
1947         if (err) {
1948                 dev_err(&pdev->dev, "Failed to setup interrupt\n");
1949                 goto err_out_disable_msi;
1950         }
1951
1952         if (qlcnic_83xx_check(adapter)) {
1953                 err = qlcnic_83xx_setup_mbx_intr(adapter);
1954                 if (err)
1955                         goto err_out_disable_msi;
1956         }
1957
1958         err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
1959         if (err)
1960                 goto err_out_disable_mbx_intr;
1961
1962         if (qlcnic_82xx_check(adapter)) {
1963                 if (ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1964                         capab2 = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
1965                         if (capab2 & QLCNIC_FW_CAPABILITY_2_OCBB)
1966                                 qlcnic_fw_cmd_set_drv_version(adapter);
1967                 }
1968         }
1969
1970         pci_set_drvdata(pdev, adapter);
1971
1972         if (qlcnic_82xx_check(adapter))
1973                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
1974                                      FW_POLL_DELAY);
1975
1976         switch (adapter->ahw->port_type) {
1977         case QLCNIC_GBE:
1978                 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1979                                 adapter->netdev->name);
1980                 break;
1981         case QLCNIC_XGBE:
1982                 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1983                                 adapter->netdev->name);
1984                 break;
1985         }
1986
1987         if (qlcnic_get_act_pci_func(adapter))
1988                 goto err_out_disable_mbx_intr;
1989
1990         if (adapter->drv_mac_learn)
1991                 qlcnic_alloc_lb_filters_mem(adapter);
1992
1993         qlcnic_add_sysfs(adapter);
1994
1995         return 0;
1996
1997 err_out_disable_mbx_intr:
1998         if (qlcnic_83xx_check(adapter))
1999                 qlcnic_83xx_free_mbx_intr(adapter);
2000
2001 err_out_disable_msi:
2002         qlcnic_teardown_intr(adapter);
2003         qlcnic_cancel_idc_work(adapter);
2004         qlcnic_clr_all_drv_state(adapter, 0);
2005
2006 err_out_free_hw:
2007         qlcnic_free_adapter_resources(adapter);
2008
2009 err_out_free_netdev:
2010         free_netdev(netdev);
2011
2012 err_out_iounmap:
2013         qlcnic_cleanup_pci_map(adapter);
2014
2015 err_out_free_hw_res:
2016         kfree(ahw);
2017
2018 err_out_free_res:
2019         pci_release_regions(pdev);
2020
2021 err_out_disable_pdev:
2022         pci_set_drvdata(pdev, NULL);
2023         pci_disable_device(pdev);
2024         return err;
2025 }
2026
2027 static void qlcnic_remove(struct pci_dev *pdev)
2028 {
2029         struct qlcnic_adapter *adapter;
2030         struct net_device *netdev;
2031         struct qlcnic_hardware_context *ahw;
2032
2033         adapter = pci_get_drvdata(pdev);
2034         if (adapter == NULL)
2035                 return;
2036
2037         netdev = adapter->netdev;
2038         qlcnic_sriov_pf_disable(adapter);
2039
2040         qlcnic_cancel_idc_work(adapter);
2041         ahw = adapter->ahw;
2042
2043         unregister_netdev(netdev);
2044         qlcnic_sriov_cleanup(adapter);
2045
2046         if (qlcnic_83xx_check(adapter)) {
2047                 qlcnic_83xx_free_mbx_intr(adapter);
2048                 qlcnic_83xx_register_nic_idc_func(adapter, 0);
2049                 cancel_delayed_work_sync(&adapter->idc_aen_work);
2050         }
2051
2052         qlcnic_detach(adapter);
2053
2054         if (adapter->npars != NULL)
2055                 kfree(adapter->npars);
2056         if (adapter->eswitch != NULL)
2057                 kfree(adapter->eswitch);
2058
2059         if (qlcnic_82xx_check(adapter))
2060                 qlcnic_clr_all_drv_state(adapter, 0);
2061
2062         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2063
2064         qlcnic_free_lb_filters_mem(adapter);
2065
2066         qlcnic_teardown_intr(adapter);
2067
2068         qlcnic_remove_sysfs(adapter);
2069
2070         qlcnic_cleanup_pci_map(adapter);
2071
2072         qlcnic_release_firmware(adapter);
2073
2074         pci_disable_pcie_error_reporting(pdev);
2075         pci_release_regions(pdev);
2076         pci_disable_device(pdev);
2077         pci_set_drvdata(pdev, NULL);
2078
2079         if (adapter->qlcnic_wq) {
2080                 destroy_workqueue(adapter->qlcnic_wq);
2081                 adapter->qlcnic_wq = NULL;
2082         }
2083         qlcnic_free_adapter_resources(adapter);
2084         kfree(ahw);
2085         free_netdev(netdev);
2086 }
2087 static int __qlcnic_shutdown(struct pci_dev *pdev)
2088 {
2089         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2090         struct net_device *netdev = adapter->netdev;
2091         int retval;
2092
2093         netif_device_detach(netdev);
2094
2095         qlcnic_cancel_idc_work(adapter);
2096
2097         if (netif_running(netdev))
2098                 qlcnic_down(adapter, netdev);
2099
2100         if (qlcnic_82xx_check(adapter))
2101                 qlcnic_clr_all_drv_state(adapter, 0);
2102
2103         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2104
2105         retval = pci_save_state(pdev);
2106         if (retval)
2107                 return retval;
2108         if (qlcnic_82xx_check(adapter)) {
2109                 if (qlcnic_wol_supported(adapter)) {
2110                         pci_enable_wake(pdev, PCI_D3cold, 1);
2111                         pci_enable_wake(pdev, PCI_D3hot, 1);
2112                 }
2113         }
2114
2115         return 0;
2116 }
2117
2118 static void qlcnic_shutdown(struct pci_dev *pdev)
2119 {
2120         if (__qlcnic_shutdown(pdev))
2121                 return;
2122
2123         pci_disable_device(pdev);
2124 }
2125
2126 #ifdef CONFIG_PM
2127 static int
2128 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2129 {
2130         int retval;
2131
2132         retval = __qlcnic_shutdown(pdev);
2133         if (retval)
2134                 return retval;
2135
2136         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2137         return 0;
2138 }
2139
2140 static int
2141 qlcnic_resume(struct pci_dev *pdev)
2142 {
2143         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2144         struct net_device *netdev = adapter->netdev;
2145         int err;
2146
2147         err = pci_enable_device(pdev);
2148         if (err)
2149                 return err;
2150
2151         pci_set_power_state(pdev, PCI_D0);
2152         pci_set_master(pdev);
2153         pci_restore_state(pdev);
2154
2155         err = qlcnic_start_firmware(adapter);
2156         if (err) {
2157                 dev_err(&pdev->dev, "failed to start firmware\n");
2158                 return err;
2159         }
2160
2161         if (netif_running(netdev)) {
2162                 err = qlcnic_up(adapter, netdev);
2163                 if (err)
2164                         goto done;
2165
2166                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2167         }
2168 done:
2169         netif_device_attach(netdev);
2170         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
2171         return 0;
2172 }
2173 #endif
2174
2175 static int qlcnic_open(struct net_device *netdev)
2176 {
2177         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2178         int err;
2179
2180         netif_carrier_off(netdev);
2181
2182         err = qlcnic_attach(adapter);
2183         if (err)
2184                 return err;
2185
2186         err = __qlcnic_up(adapter, netdev);
2187         if (err)
2188                 goto err_out;
2189
2190         netif_start_queue(netdev);
2191
2192         return 0;
2193
2194 err_out:
2195         qlcnic_detach(adapter);
2196         return err;
2197 }
2198
2199 /*
2200  * qlcnic_close - Disables a network interface entry point
2201  */
2202 static int qlcnic_close(struct net_device *netdev)
2203 {
2204         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2205
2206         __qlcnic_down(adapter, netdev);
2207
2208         return 0;
2209 }
2210
2211 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2212 {
2213         void *head;
2214         int i;
2215         struct net_device *netdev = adapter->netdev;
2216         u32 filter_size = 0;
2217         u16 act_pci_func = 0;
2218
2219         if (adapter->fhash.fmax && adapter->fhash.fhead)
2220                 return;
2221
2222         act_pci_func = adapter->ahw->act_pci_func;
2223         spin_lock_init(&adapter->mac_learn_lock);
2224         spin_lock_init(&adapter->rx_mac_learn_lock);
2225
2226         if (qlcnic_82xx_check(adapter)) {
2227                 filter_size = QLCNIC_LB_MAX_FILTERS;
2228                 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2229         } else {
2230                 filter_size = QLC_83XX_LB_MAX_FILTERS;
2231                 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2232         }
2233
2234         head = kcalloc(adapter->fhash.fbucket_size,
2235                        sizeof(struct hlist_head), GFP_ATOMIC);
2236
2237         if (!head)
2238                 return;
2239
2240         adapter->fhash.fmax = (filter_size / act_pci_func);
2241         adapter->fhash.fhead = head;
2242
2243         netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2244                     act_pci_func, adapter->fhash.fmax);
2245
2246         for (i = 0; i < adapter->fhash.fbucket_size; i++)
2247                 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2248
2249         adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2250
2251         head = kcalloc(adapter->rx_fhash.fbucket_size,
2252                        sizeof(struct hlist_head), GFP_ATOMIC);
2253
2254         if (!head)
2255                 return;
2256
2257         adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2258         adapter->rx_fhash.fhead = head;
2259
2260         for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2261                 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2262 }
2263
2264 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2265 {
2266         if (adapter->fhash.fmax && adapter->fhash.fhead)
2267                 kfree(adapter->fhash.fhead);
2268
2269         adapter->fhash.fhead = NULL;
2270         adapter->fhash.fmax = 0;
2271
2272         if (adapter->rx_fhash.fmax && adapter->rx_fhash.fhead)
2273                 kfree(adapter->rx_fhash.fhead);
2274
2275         adapter->rx_fhash.fmax = 0;
2276         adapter->rx_fhash.fhead = NULL;
2277 }
2278
2279 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2280 {
2281         struct net_device *netdev = adapter->netdev;
2282         u32 temp_state, temp_val, temp = 0;
2283         int rv = 0;
2284
2285         if (qlcnic_83xx_check(adapter))
2286                 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2287
2288         if (qlcnic_82xx_check(adapter))
2289                 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2290
2291         temp_state = qlcnic_get_temp_state(temp);
2292         temp_val = qlcnic_get_temp_val(temp);
2293
2294         if (temp_state == QLCNIC_TEMP_PANIC) {
2295                 dev_err(&netdev->dev,
2296                        "Device temperature %d degrees C exceeds"
2297                        " maximum allowed. Hardware has been shut down.\n",
2298                        temp_val);
2299                 rv = 1;
2300         } else if (temp_state == QLCNIC_TEMP_WARN) {
2301                 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2302                         dev_err(&netdev->dev,
2303                                "Device temperature %d degrees C "
2304                                "exceeds operating range."
2305                                " Immediate action needed.\n",
2306                                temp_val);
2307                 }
2308         } else {
2309                 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2310                         dev_info(&netdev->dev,
2311                                "Device temperature is now %d degrees C"
2312                                " in normal range.\n", temp_val);
2313                 }
2314         }
2315         adapter->ahw->temp = temp_state;
2316         return rv;
2317 }
2318
2319 static void qlcnic_tx_timeout(struct net_device *netdev)
2320 {
2321         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2322
2323         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2324                 return;
2325
2326         dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2327
2328         if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
2329                 adapter->need_fw_reset = 1;
2330         else
2331                 adapter->ahw->reset_context = 1;
2332 }
2333
2334 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2335 {
2336         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2337         struct net_device_stats *stats = &netdev->stats;
2338
2339         stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2340         stats->tx_packets = adapter->stats.xmitfinished;
2341         stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2342         stats->tx_bytes = adapter->stats.txbytes;
2343         stats->rx_dropped = adapter->stats.rxdropped;
2344         stats->tx_dropped = adapter->stats.txdropped;
2345
2346         return stats;
2347 }
2348
2349 irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
2350 {
2351         u32 status;
2352
2353         status = readl(adapter->isr_int_vec);
2354
2355         if (!(status & adapter->ahw->int_vec_bit))
2356                 return IRQ_NONE;
2357
2358         /* check interrupt state machine, to be sure */
2359         status = readl(adapter->crb_int_state_reg);
2360         if (!ISR_LEGACY_INT_TRIGGERED(status))
2361                 return IRQ_NONE;
2362
2363         writel(0xffffffff, adapter->tgt_status_reg);
2364         /* read twice to ensure write is flushed */
2365         readl(adapter->isr_int_vec);
2366         readl(adapter->isr_int_vec);
2367
2368         return IRQ_HANDLED;
2369 }
2370
2371 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2372 {
2373         struct qlcnic_host_sds_ring *sds_ring = data;
2374         struct qlcnic_adapter *adapter = sds_ring->adapter;
2375
2376         if (adapter->flags & QLCNIC_MSIX_ENABLED)
2377                 goto done;
2378         else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2379                 writel(0xffffffff, adapter->tgt_status_reg);
2380                 goto done;
2381         }
2382
2383         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2384                 return IRQ_NONE;
2385
2386 done:
2387         adapter->ahw->diag_cnt++;
2388         qlcnic_enable_int(sds_ring);
2389         return IRQ_HANDLED;
2390 }
2391
2392 static irqreturn_t qlcnic_intr(int irq, void *data)
2393 {
2394         struct qlcnic_host_sds_ring *sds_ring = data;
2395         struct qlcnic_adapter *adapter = sds_ring->adapter;
2396
2397         if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2398                 return IRQ_NONE;
2399
2400         napi_schedule(&sds_ring->napi);
2401
2402         return IRQ_HANDLED;
2403 }
2404
2405 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2406 {
2407         struct qlcnic_host_sds_ring *sds_ring = data;
2408         struct qlcnic_adapter *adapter = sds_ring->adapter;
2409
2410         /* clear interrupt */
2411         writel(0xffffffff, adapter->tgt_status_reg);
2412
2413         napi_schedule(&sds_ring->napi);
2414         return IRQ_HANDLED;
2415 }
2416
2417 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2418 {
2419         struct qlcnic_host_sds_ring *sds_ring = data;
2420
2421         napi_schedule(&sds_ring->napi);
2422         return IRQ_HANDLED;
2423 }
2424
2425 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
2426 {
2427         struct qlcnic_host_tx_ring *tx_ring = data;
2428
2429         napi_schedule(&tx_ring->napi);
2430         return IRQ_HANDLED;
2431 }
2432
2433 #ifdef CONFIG_NET_POLL_CONTROLLER
2434 static void qlcnic_poll_controller(struct net_device *netdev)
2435 {
2436         int ring;
2437         struct qlcnic_host_sds_ring *sds_ring;
2438         struct qlcnic_adapter *adapter = netdev_priv(netdev);
2439         struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2440
2441         disable_irq(adapter->irq);
2442         for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2443                 sds_ring = &recv_ctx->sds_rings[ring];
2444                 qlcnic_intr(adapter->irq, sds_ring);
2445         }
2446         enable_irq(adapter->irq);
2447 }
2448 #endif
2449
2450 static void
2451 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2452 {
2453         u32 val;
2454
2455         val = adapter->portnum & 0xf;
2456         val |= encoding << 7;
2457         val |= (jiffies - adapter->dev_rst_time) << 8;
2458
2459         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2460         adapter->dev_rst_time = jiffies;
2461 }
2462
2463 static int
2464 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2465 {
2466         u32  val;
2467
2468         WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2469                         state != QLCNIC_DEV_NEED_QUISCENT);
2470
2471         if (qlcnic_api_lock(adapter))
2472                 return -EIO;
2473
2474         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2475
2476         if (state == QLCNIC_DEV_NEED_RESET)
2477                 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2478         else if (state == QLCNIC_DEV_NEED_QUISCENT)
2479                 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2480
2481         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2482
2483         qlcnic_api_unlock(adapter);
2484
2485         return 0;
2486 }
2487
2488 static int
2489 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2490 {
2491         u32  val;
2492
2493         if (qlcnic_api_lock(adapter))
2494                 return -EBUSY;
2495
2496         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2497         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2498         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2499
2500         qlcnic_api_unlock(adapter);
2501
2502         return 0;
2503 }
2504
2505 static void
2506 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2507 {
2508         u32  val;
2509
2510         if (qlcnic_api_lock(adapter))
2511                 goto err;
2512
2513         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2514         QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2515         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2516
2517         if (failed) {
2518                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2519                                     QLCNIC_DEV_FAILED);
2520                 dev_info(&adapter->pdev->dev,
2521                                 "Device state set to Failed. Please Reboot\n");
2522         } else if (!(val & 0x11111111))
2523                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2524                                     QLCNIC_DEV_COLD);
2525
2526         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2527         QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2528         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2529
2530         qlcnic_api_unlock(adapter);
2531 err:
2532         adapter->fw_fail_cnt = 0;
2533         adapter->flags &= ~QLCNIC_FW_HANG;
2534         clear_bit(__QLCNIC_START_FW, &adapter->state);
2535         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2536 }
2537
2538 /* Grab api lock, before checking state */
2539 static int
2540 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2541 {
2542         int act, state, active_mask;
2543         struct qlcnic_hardware_context *ahw = adapter->ahw;
2544
2545         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2546         act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2547
2548         if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
2549                 active_mask = (~(1 << (ahw->pci_func * 4)));
2550                 act = act & active_mask;
2551         }
2552
2553         if (((state & 0x11111111) == (act & 0x11111111)) ||
2554                         ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2555                 return 0;
2556         else
2557                 return 1;
2558 }
2559
2560 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2561 {
2562         u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2563
2564         if (val != QLCNIC_DRV_IDC_VER) {
2565                 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2566                         " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2567         }
2568
2569         return 0;
2570 }
2571
2572 static int
2573 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2574 {
2575         u32 val, prev_state;
2576         u8 dev_init_timeo = adapter->dev_init_timeo;
2577         u8 portnum = adapter->portnum;
2578         u8 ret;
2579
2580         if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2581                 return 1;
2582
2583         if (qlcnic_api_lock(adapter))
2584                 return -1;
2585
2586         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2587         if (!(val & (1 << (portnum * 4)))) {
2588                 QLC_DEV_SET_REF_CNT(val, portnum);
2589                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2590         }
2591
2592         prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2593         QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2594
2595         switch (prev_state) {
2596         case QLCNIC_DEV_COLD:
2597                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2598                                     QLCNIC_DEV_INITIALIZING);
2599                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
2600                                     QLCNIC_DRV_IDC_VER);
2601                 qlcnic_idc_debug_info(adapter, 0);
2602                 qlcnic_api_unlock(adapter);
2603                 return 1;
2604
2605         case QLCNIC_DEV_READY:
2606                 ret = qlcnic_check_idc_ver(adapter);
2607                 qlcnic_api_unlock(adapter);
2608                 return ret;
2609
2610         case QLCNIC_DEV_NEED_RESET:
2611                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2612                 QLC_DEV_SET_RST_RDY(val, portnum);
2613                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2614                 break;
2615
2616         case QLCNIC_DEV_NEED_QUISCENT:
2617                 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2618                 QLC_DEV_SET_QSCNT_RDY(val, portnum);
2619                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2620                 break;
2621
2622         case QLCNIC_DEV_FAILED:
2623                 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
2624                 qlcnic_api_unlock(adapter);
2625                 return -1;
2626
2627         case QLCNIC_DEV_INITIALIZING:
2628         case QLCNIC_DEV_QUISCENT:
2629                 break;
2630         }
2631
2632         qlcnic_api_unlock(adapter);
2633
2634         do {
2635                 msleep(1000);
2636                 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2637
2638                 if (prev_state == QLCNIC_DEV_QUISCENT)
2639                         continue;
2640         } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
2641
2642         if (!dev_init_timeo) {
2643                 dev_err(&adapter->pdev->dev,
2644                         "Waiting for device to initialize timeout\n");
2645                 return -1;
2646         }
2647
2648         if (qlcnic_api_lock(adapter))
2649                 return -1;
2650
2651         val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2652         QLC_DEV_CLR_RST_QSCNT(val, portnum);
2653         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2654
2655         ret = qlcnic_check_idc_ver(adapter);
2656         qlcnic_api_unlock(adapter);
2657
2658         return ret;
2659 }
2660
2661 static void
2662 qlcnic_fwinit_work(struct work_struct *work)
2663 {
2664         struct qlcnic_adapter *adapter = container_of(work,
2665                         struct qlcnic_adapter, fw_work.work);
2666         u32 dev_state = 0xf;
2667         u32 val;
2668
2669         if (qlcnic_api_lock(adapter))
2670                 goto err_ret;
2671
2672         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2673         if (dev_state == QLCNIC_DEV_QUISCENT ||
2674             dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2675                 qlcnic_api_unlock(adapter);
2676                 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2677                                                 FW_POLL_DELAY * 2);
2678                 return;
2679         }
2680
2681         if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
2682                 qlcnic_api_unlock(adapter);
2683                 goto wait_npar;
2684         }
2685
2686         if (dev_state == QLCNIC_DEV_INITIALIZING ||
2687             dev_state == QLCNIC_DEV_READY) {
2688                 dev_info(&adapter->pdev->dev, "Detected state change from "
2689                                 "DEV_NEED_RESET, skipping ack check\n");
2690                 goto skip_ack_check;
2691         }
2692
2693         if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2694                 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2695                                         adapter->reset_ack_timeo);
2696                 goto skip_ack_check;
2697         }
2698
2699         if (!qlcnic_check_drv_state(adapter)) {
2700 skip_ack_check:
2701                 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2702
2703                 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2704                         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2705                                             QLCNIC_DEV_INITIALIZING);
2706                         set_bit(__QLCNIC_START_FW, &adapter->state);
2707                         QLCDB(adapter, DRV, "Restarting fw\n");
2708                         qlcnic_idc_debug_info(adapter, 0);
2709                         val = QLC_SHARED_REG_RD32(adapter,
2710                                                   QLCNIC_CRB_DRV_STATE);
2711                         QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2712                         QLC_SHARED_REG_WR32(adapter,
2713                                             QLCNIC_CRB_DRV_STATE, val);
2714                 }
2715
2716                 qlcnic_api_unlock(adapter);
2717
2718                 rtnl_lock();
2719                 if (adapter->ahw->fw_dump.enable &&
2720                     (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2721                         QLCDB(adapter, DRV, "Take FW dump\n");
2722                         qlcnic_dump_fw(adapter);
2723                         adapter->flags |= QLCNIC_FW_HANG;
2724                 }
2725                 rtnl_unlock();
2726
2727                 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
2728                 if (!adapter->nic_ops->start_firmware(adapter)) {
2729                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2730                         adapter->fw_wait_cnt = 0;
2731                         return;
2732                 }
2733                 goto err_ret;
2734         }
2735
2736         qlcnic_api_unlock(adapter);
2737
2738 wait_npar:
2739         dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2740         QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
2741
2742         switch (dev_state) {
2743         case QLCNIC_DEV_READY:
2744                 if (!qlcnic_start_firmware(adapter)) {
2745                         qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2746                         adapter->fw_wait_cnt = 0;
2747                         return;
2748                 }
2749         case QLCNIC_DEV_FAILED:
2750                 break;
2751         default:
2752                 qlcnic_schedule_work(adapter,
2753                         qlcnic_fwinit_work, FW_POLL_DELAY);
2754                 return;
2755         }
2756
2757 err_ret:
2758         dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2759                 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
2760         netif_device_attach(adapter->netdev);
2761         qlcnic_clr_all_drv_state(adapter, 0);
2762 }
2763
2764 static void
2765 qlcnic_detach_work(struct work_struct *work)
2766 {
2767         struct qlcnic_adapter *adapter = container_of(work,
2768                         struct qlcnic_adapter, fw_work.work);
2769         struct net_device *netdev = adapter->netdev;
2770         u32 status;
2771
2772         netif_device_detach(netdev);
2773
2774         /* Dont grab rtnl lock during Quiscent mode */
2775         if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2776                 if (netif_running(netdev))
2777                         __qlcnic_down(adapter, netdev);
2778         } else
2779                 qlcnic_down(adapter, netdev);
2780
2781         status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2782
2783         if (status & QLCNIC_RCODE_FATAL_ERROR) {
2784                 dev_err(&adapter->pdev->dev,
2785                         "Detaching the device: peg halt status1=0x%x\n",
2786                                         status);
2787
2788                 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
2789                         dev_err(&adapter->pdev->dev,
2790                         "On board active cooling fan failed. "
2791                                 "Device has been halted.\n");
2792                         dev_err(&adapter->pdev->dev,
2793                                 "Replace the adapter.\n");
2794                 }
2795
2796                 goto err_ret;
2797         }
2798
2799         if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
2800                 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
2801                         adapter->ahw->temp);
2802                 goto err_ret;
2803         }
2804
2805         /* Dont ack if this instance is the reset owner */
2806         if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2807                 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
2808                         dev_err(&adapter->pdev->dev,
2809                                 "Failed to set driver state,"
2810                                         "detaching the device.\n");
2811                         goto err_ret;
2812                 }
2813         }
2814
2815         adapter->fw_wait_cnt = 0;
2816
2817         qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2818
2819         return;
2820
2821 err_ret:
2822         netif_device_attach(netdev);
2823         qlcnic_clr_all_drv_state(adapter, 1);
2824 }
2825
2826 /*Transit NPAR state to NON Operational */
2827 static void
2828 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
2829 {
2830         u32 state;
2831
2832         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2833         if (state == QLCNIC_DEV_NPAR_NON_OPER)
2834                 return;
2835
2836         if (qlcnic_api_lock(adapter))
2837                 return;
2838         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2839                             QLCNIC_DEV_NPAR_NON_OPER);
2840         qlcnic_api_unlock(adapter);
2841 }
2842
2843 void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter, u32 key)
2844 {
2845         u32 state, xg_val = 0, gb_val = 0;
2846
2847         qlcnic_xg_set_xg0_mask(xg_val);
2848         qlcnic_xg_set_xg1_mask(xg_val);
2849         QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
2850         qlcnic_gb_set_gb0_mask(gb_val);
2851         qlcnic_gb_set_gb1_mask(gb_val);
2852         qlcnic_gb_set_gb2_mask(gb_val);
2853         qlcnic_gb_set_gb3_mask(gb_val);
2854         QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
2855         dev_info(&adapter->pdev->dev, "Pause control frames disabled"
2856                                 " on all ports\n");
2857         adapter->need_fw_reset = 1;
2858
2859         if (qlcnic_api_lock(adapter))
2860                 return;
2861
2862         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2863
2864         if (state == QLCNIC_DEV_READY) {
2865                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2866                                     QLCNIC_DEV_NEED_RESET);
2867                 adapter->flags |= QLCNIC_FW_RESET_OWNER;
2868                 QLCDB(adapter, DRV, "NEED_RESET state set\n");
2869                 qlcnic_idc_debug_info(adapter, 0);
2870         }
2871
2872         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2873                             QLCNIC_DEV_NPAR_NON_OPER);
2874         qlcnic_api_unlock(adapter);
2875 }
2876
2877 /* Transit to NPAR READY state from NPAR NOT READY state */
2878 static void
2879 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
2880 {
2881         if (qlcnic_api_lock(adapter))
2882                 return;
2883
2884         QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2885                             QLCNIC_DEV_NPAR_OPER);
2886         QLCDB(adapter, DRV, "NPAR operational state set\n");
2887
2888         qlcnic_api_unlock(adapter);
2889 }
2890
2891 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2892                           work_func_t func, int delay)
2893 {
2894         if (test_bit(__QLCNIC_AER, &adapter->state))
2895                 return;
2896
2897         INIT_DELAYED_WORK(&adapter->fw_work, func);
2898         queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
2899                            round_jiffies_relative(delay));
2900 }
2901
2902 static void
2903 qlcnic_attach_work(struct work_struct *work)
2904 {
2905         struct qlcnic_adapter *adapter = container_of(work,
2906                                 struct qlcnic_adapter, fw_work.work);
2907         struct net_device *netdev = adapter->netdev;
2908         u32 npar_state;
2909
2910         if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
2911                 npar_state = QLC_SHARED_REG_RD32(adapter,
2912                                                  QLCNIC_CRB_DEV_NPAR_STATE);
2913                 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
2914                         qlcnic_clr_all_drv_state(adapter, 0);
2915                 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
2916                         qlcnic_schedule_work(adapter, qlcnic_attach_work,
2917                                                         FW_POLL_DELAY);
2918                 else
2919                         goto attach;
2920                 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
2921                 return;
2922         }
2923 attach:
2924         if (netif_running(netdev)) {
2925                 if (qlcnic_up(adapter, netdev))
2926                         goto done;
2927
2928                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2929         }
2930
2931 done:
2932         netif_device_attach(netdev);
2933         adapter->fw_fail_cnt = 0;
2934         adapter->flags &= ~QLCNIC_FW_HANG;
2935         clear_bit(__QLCNIC_RESETTING, &adapter->state);
2936
2937         if (!qlcnic_clr_drv_state(adapter))
2938                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2939                                                         FW_POLL_DELAY);
2940 }
2941
2942 static int
2943 qlcnic_check_health(struct qlcnic_adapter *adapter)
2944 {
2945         u32 state = 0, heartbeat;
2946         u32 peg_status;
2947
2948         if (qlcnic_check_temp(adapter))
2949                 goto detach;
2950
2951         if (adapter->need_fw_reset)
2952                 qlcnic_dev_request_reset(adapter, 0);
2953
2954         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2955         if (state == QLCNIC_DEV_NEED_RESET) {
2956                 qlcnic_set_npar_non_operational(adapter);
2957                 adapter->need_fw_reset = 1;
2958         } else if (state == QLCNIC_DEV_NEED_QUISCENT)
2959                 goto detach;
2960
2961         heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
2962         if (heartbeat != adapter->heartbeat) {
2963                 adapter->heartbeat = heartbeat;
2964                 adapter->fw_fail_cnt = 0;
2965                 if (adapter->need_fw_reset)
2966                         goto detach;
2967
2968                 if (adapter->ahw->reset_context && qlcnic_auto_fw_reset) {
2969                         qlcnic_reset_hw_context(adapter);
2970                         adapter->netdev->trans_start = jiffies;
2971                 }
2972
2973                 return 0;
2974         }
2975
2976         if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2977                 return 0;
2978
2979         adapter->flags |= QLCNIC_FW_HANG;
2980
2981         qlcnic_dev_request_reset(adapter, 0);
2982
2983         if (qlcnic_auto_fw_reset)
2984                 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
2985
2986         dev_err(&adapter->pdev->dev, "firmware hang detected\n");
2987         peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2988         dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
2989                         "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
2990                         "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
2991                         "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
2992                         "PEG_NET_4_PC: 0x%x\n",
2993                         peg_status,
2994                         QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
2995                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c),
2996                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c),
2997                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c),
2998                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c),
2999                         QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c));
3000         if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3001                 dev_err(&adapter->pdev->dev,
3002                         "Firmware aborted with error code 0x00006700. "
3003                                 "Device is being reset.\n");
3004 detach:
3005         adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3006                 QLCNIC_DEV_NEED_RESET;
3007
3008         if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3009                                                       &adapter->state)) {
3010
3011                 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3012                 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3013         }
3014
3015         return 1;
3016 }
3017
3018 static void
3019 qlcnic_fw_poll_work(struct work_struct *work)
3020 {
3021         struct qlcnic_adapter *adapter = container_of(work,
3022                                 struct qlcnic_adapter, fw_work.work);
3023
3024         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3025                 goto reschedule;
3026
3027
3028         if (qlcnic_check_health(adapter))
3029                 return;
3030
3031         if (adapter->fhash.fnum)
3032                 qlcnic_prune_lb_filters(adapter);
3033
3034 reschedule:
3035         qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3036 }
3037
3038 static int qlcnic_is_first_func(struct pci_dev *pdev)
3039 {
3040         struct pci_dev *oth_pdev;
3041         int val = pdev->devfn;
3042
3043         while (val-- > 0) {
3044                 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3045                         (pdev->bus), pdev->bus->number,
3046                         PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3047                 if (!oth_pdev)
3048                         continue;
3049
3050                 if (oth_pdev->current_state != PCI_D3cold) {
3051                         pci_dev_put(oth_pdev);
3052                         return 0;
3053                 }
3054                 pci_dev_put(oth_pdev);
3055         }
3056         return 1;
3057 }
3058
3059 static int qlcnic_attach_func(struct pci_dev *pdev)
3060 {
3061         int err, first_func;
3062         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3063         struct net_device *netdev = adapter->netdev;
3064
3065         pdev->error_state = pci_channel_io_normal;
3066
3067         err = pci_enable_device(pdev);
3068         if (err)
3069                 return err;
3070
3071         pci_set_power_state(pdev, PCI_D0);
3072         pci_set_master(pdev);
3073         pci_restore_state(pdev);
3074
3075         first_func = qlcnic_is_first_func(pdev);
3076
3077         if (qlcnic_api_lock(adapter))
3078                 return -EINVAL;
3079
3080         if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3081                 adapter->need_fw_reset = 1;
3082                 set_bit(__QLCNIC_START_FW, &adapter->state);
3083                 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3084                                     QLCNIC_DEV_INITIALIZING);
3085                 QLCDB(adapter, DRV, "Restarting fw\n");
3086         }
3087         qlcnic_api_unlock(adapter);
3088
3089         err = qlcnic_start_firmware(adapter);
3090         if (err)
3091                 return err;
3092
3093         qlcnic_clr_drv_state(adapter);
3094         kfree(adapter->msix_entries);
3095         adapter->msix_entries = NULL;
3096         err = qlcnic_setup_intr(adapter, 0);
3097
3098         if (err) {
3099                 kfree(adapter->msix_entries);
3100                 netdev_err(netdev, "failed to setup interrupt\n");
3101                 return err;
3102         }
3103
3104         if (qlcnic_83xx_check(adapter)) {
3105                 /* register for NIC IDC AEN Events */
3106                 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3107                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3108                 if (err) {
3109                         dev_err(&adapter->pdev->dev,
3110                                 "failed to setup mbx interrupt\n");
3111                         qlcnic_clr_all_drv_state(adapter, 1);
3112                         clear_bit(__QLCNIC_AER, &adapter->state);
3113                         goto done;
3114                 }
3115         }
3116
3117         if (netif_running(netdev)) {
3118                 err = qlcnic_attach(adapter);
3119                 if (err) {
3120                         qlcnic_clr_all_drv_state(adapter, 1);
3121                         clear_bit(__QLCNIC_AER, &adapter->state);
3122                         netif_device_attach(netdev);
3123                         return err;
3124                 }
3125
3126                 err = qlcnic_up(adapter, netdev);
3127                 if (err)
3128                         goto done;
3129
3130                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3131         }
3132  done:
3133         netif_device_attach(netdev);
3134         return err;
3135 }
3136
3137 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3138                                                 pci_channel_state_t state)
3139 {
3140         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3141         struct net_device *netdev = adapter->netdev;
3142
3143         if (state == pci_channel_io_perm_failure)
3144                 return PCI_ERS_RESULT_DISCONNECT;
3145
3146         if (state == pci_channel_io_normal)
3147                 return PCI_ERS_RESULT_RECOVERED;
3148
3149         set_bit(__QLCNIC_AER, &adapter->state);
3150         netif_device_detach(netdev);
3151
3152         cancel_delayed_work_sync(&adapter->fw_work);
3153
3154         if (netif_running(netdev))
3155                 qlcnic_down(adapter, netdev);
3156
3157         if (qlcnic_83xx_check(adapter)) {
3158                 qlcnic_83xx_free_mbx_intr(adapter);
3159                 qlcnic_83xx_register_nic_idc_func(adapter, 0);
3160                 cancel_delayed_work_sync(&adapter->idc_aen_work);
3161         }
3162
3163         qlcnic_detach(adapter);
3164         qlcnic_teardown_intr(adapter);
3165
3166         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3167
3168         pci_save_state(pdev);
3169         pci_disable_device(pdev);
3170
3171         return PCI_ERS_RESULT_NEED_RESET;
3172 }
3173
3174 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3175 {
3176         return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3177                                 PCI_ERS_RESULT_RECOVERED;
3178 }
3179
3180 static void qlcnic_io_resume(struct pci_dev *pdev)
3181 {
3182         u32 state;
3183         struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3184
3185         pci_cleanup_aer_uncorrect_error_status(pdev);
3186         state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3187         if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3188                                                             &adapter->state))
3189                 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3190                                                 FW_POLL_DELAY);
3191 }
3192
3193 static int
3194 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3195 {
3196         int err;
3197
3198         err = qlcnic_can_start_firmware(adapter);
3199         if (err)
3200                 return err;
3201
3202         err = qlcnic_check_npar_opertional(adapter);
3203         if (err)
3204                 return err;
3205
3206         err = qlcnic_initialize_nic(adapter);
3207         if (err)
3208                 return err;
3209
3210         qlcnic_check_options(adapter);
3211
3212         err = qlcnic_set_eswitch_port_config(adapter);
3213         if (err)
3214                 return err;
3215
3216         adapter->need_fw_reset = 0;
3217
3218         return err;
3219 }
3220
3221 int qlcnic_validate_max_rss(u8 max_hw, u8 val)
3222 {
3223         u32 max_allowed;
3224
3225         if (max_hw > QLC_MAX_SDS_RINGS) {
3226                 max_hw = QLC_MAX_SDS_RINGS;
3227                 pr_info("max rss reset to %d\n", QLC_MAX_SDS_RINGS);
3228         }
3229
3230         max_allowed = rounddown_pow_of_two(min_t(int, max_hw,
3231                                                  num_online_cpus()));
3232         if ((val > max_allowed) || (val < 2) || !is_power_of_2(val)) {
3233                 pr_info("rss_ring valid range [2 - %x] in powers of 2\n",
3234                         max_allowed);
3235                 return -EINVAL;
3236         }
3237         return 0;
3238 }
3239
3240 int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data, size_t len)
3241 {
3242         int err;
3243         struct net_device *netdev = adapter->netdev;
3244
3245         if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3246                 return -EBUSY;
3247
3248         netif_device_detach(netdev);
3249         if (netif_running(netdev))
3250                 __qlcnic_down(adapter, netdev);
3251
3252         qlcnic_detach(adapter);
3253
3254         if (qlcnic_83xx_check(adapter))
3255                 qlcnic_83xx_free_mbx_intr(adapter);
3256
3257         qlcnic_teardown_intr(adapter);
3258         err = qlcnic_setup_intr(adapter, data);
3259         if (err) {
3260                 kfree(adapter->msix_entries);
3261                 netdev_err(netdev, "failed to setup interrupt\n");
3262                 return err;
3263         }
3264
3265         if (qlcnic_83xx_check(adapter)) {
3266                 /* register for NIC IDC AEN Events */
3267                 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3268                 err = qlcnic_83xx_setup_mbx_intr(adapter);
3269                 if (err) {
3270                         dev_err(&adapter->pdev->dev,
3271                                 "failed to setup mbx interrupt\n");
3272                         goto done;
3273                 }
3274         }
3275
3276         if (netif_running(netdev)) {
3277                 err = qlcnic_attach(adapter);
3278                 if (err)
3279                         goto done;
3280                 err = __qlcnic_up(adapter, netdev);
3281                 if (err)
3282                         goto done;
3283                 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3284         }
3285         err = len;
3286  done:
3287         netif_device_attach(netdev);
3288         clear_bit(__QLCNIC_RESETTING, &adapter->state);
3289         return err;
3290 }
3291
3292 #ifdef CONFIG_INET
3293
3294 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
3295
3296 static void
3297 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
3298                         struct net_device *dev, unsigned long event)
3299 {
3300         struct in_device *indev;
3301
3302         indev = in_dev_get(dev);
3303         if (!indev)
3304                 return;
3305
3306         for_ifa(indev) {
3307                 switch (event) {
3308                 case NETDEV_UP:
3309                         qlcnic_config_ipaddr(adapter,
3310                                         ifa->ifa_address, QLCNIC_IP_UP);
3311                         break;
3312                 case NETDEV_DOWN:
3313                         qlcnic_config_ipaddr(adapter,
3314                                         ifa->ifa_address, QLCNIC_IP_DOWN);
3315                         break;
3316                 default:
3317                         break;
3318                 }
3319         } endfor_ifa(indev);
3320
3321         in_dev_put(indev);
3322 }
3323
3324 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
3325 {
3326         struct qlcnic_adapter *adapter = netdev_priv(netdev);
3327         struct net_device *dev;
3328         u16 vid;
3329
3330         qlcnic_config_indev_addr(adapter, netdev, event);
3331
3332         rcu_read_lock();
3333         for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
3334                 dev = __vlan_find_dev_deep(netdev, vid);
3335                 if (!dev)
3336                         continue;
3337                 qlcnic_config_indev_addr(adapter, dev, event);
3338         }
3339         rcu_read_unlock();
3340 }
3341
3342 static int qlcnic_netdev_event(struct notifier_block *this,
3343                                  unsigned long event, void *ptr)
3344 {
3345         struct qlcnic_adapter *adapter;
3346         struct net_device *dev = (struct net_device *)ptr;
3347
3348 recheck:
3349         if (dev == NULL)
3350                 goto done;
3351
3352         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3353                 dev = vlan_dev_real_dev(dev);
3354                 goto recheck;
3355         }
3356
3357         if (!is_qlcnic_netdev(dev))
3358                 goto done;
3359
3360         adapter = netdev_priv(dev);
3361
3362         if (!adapter)
3363                 goto done;
3364
3365         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3366                 goto done;
3367
3368         qlcnic_config_indev_addr(adapter, dev, event);
3369 done:
3370         return NOTIFY_DONE;
3371 }
3372
3373 static int
3374 qlcnic_inetaddr_event(struct notifier_block *this,
3375                 unsigned long event, void *ptr)
3376 {
3377         struct qlcnic_adapter *adapter;
3378         struct net_device *dev;
3379
3380         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3381
3382         dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3383
3384 recheck:
3385         if (dev == NULL)
3386                 goto done;
3387
3388         if (dev->priv_flags & IFF_802_1Q_VLAN) {
3389                 dev = vlan_dev_real_dev(dev);
3390                 goto recheck;
3391         }
3392
3393         if (!is_qlcnic_netdev(dev))
3394                 goto done;
3395
3396         adapter = netdev_priv(dev);
3397
3398         if (!adapter)
3399                 goto done;
3400
3401         if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3402                 goto done;
3403
3404         switch (event) {
3405         case NETDEV_UP:
3406                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
3407
3408                 break;
3409         case NETDEV_DOWN:
3410                 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
3411
3412                 break;
3413         default:
3414                 break;
3415         }
3416
3417 done:
3418         return NOTIFY_DONE;
3419 }
3420
3421 static struct notifier_block    qlcnic_netdev_cb = {
3422         .notifier_call = qlcnic_netdev_event,
3423 };
3424
3425 static struct notifier_block qlcnic_inetaddr_cb = {
3426         .notifier_call = qlcnic_inetaddr_event,
3427 };
3428 #else
3429 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
3430 { }
3431 #endif
3432 static const struct pci_error_handlers qlcnic_err_handler = {
3433         .error_detected = qlcnic_io_error_detected,
3434         .slot_reset = qlcnic_io_slot_reset,
3435         .resume = qlcnic_io_resume,
3436 };
3437
3438 static struct pci_driver qlcnic_driver = {
3439         .name = qlcnic_driver_name,
3440         .id_table = qlcnic_pci_tbl,
3441         .probe = qlcnic_probe,
3442         .remove = qlcnic_remove,
3443 #ifdef CONFIG_PM
3444         .suspend = qlcnic_suspend,
3445         .resume = qlcnic_resume,
3446 #endif
3447         .shutdown = qlcnic_shutdown,
3448         .err_handler = &qlcnic_err_handler,
3449 #ifdef CONFIG_QLCNIC_SRIOV
3450         .sriov_configure = qlcnic_pci_sriov_configure,
3451 #endif
3452
3453 };
3454
3455 static int __init qlcnic_init_module(void)
3456 {
3457         int ret;
3458
3459         printk(KERN_INFO "%s\n", qlcnic_driver_string);
3460
3461 #ifdef CONFIG_INET
3462         register_netdevice_notifier(&qlcnic_netdev_cb);
3463         register_inetaddr_notifier(&qlcnic_inetaddr_cb);
3464 #endif
3465
3466         ret = pci_register_driver(&qlcnic_driver);
3467         if (ret) {
3468 #ifdef CONFIG_INET
3469                 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3470                 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3471 #endif
3472         }
3473
3474         return ret;
3475 }
3476
3477 module_init(qlcnic_init_module);
3478
3479 static void __exit qlcnic_exit_module(void)
3480 {
3481         pci_unregister_driver(&qlcnic_driver);
3482
3483 #ifdef CONFIG_INET
3484         unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3485         unregister_netdevice_notifier(&qlcnic_netdev_cb);
3486 #endif
3487 }
3488
3489 module_exit(qlcnic_exit_module);